CN113154114A - Electric valve - Google Patents
Electric valve Download PDFInfo
- Publication number
- CN113154114A CN113154114A CN202110465501.7A CN202110465501A CN113154114A CN 113154114 A CN113154114 A CN 113154114A CN 202110465501 A CN202110465501 A CN 202110465501A CN 113154114 A CN113154114 A CN 113154114A
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- China
- Prior art keywords
- housing
- side wall
- welding
- circuit board
- rib
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K31/00—Actuating devices; Operating means; Releasing devices
- F16K31/02—Actuating devices; Operating means; Releasing devices electric; magnetic
- F16K31/04—Actuating devices; Operating means; Releasing devices electric; magnetic using a motor
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K5/00—Casings, cabinets or drawers for electric apparatus
- H05K5/06—Hermetically-sealed casings
- H05K5/066—Hermetically-sealed casings sealed by fusion of the joining parts without bringing material; sealed by brazing
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Mechanical Engineering (AREA)
- Casings For Electric Apparatus (AREA)
- Motor Or Generator Frames (AREA)
- Coupling Device And Connection With Printed Circuit (AREA)
Abstract
An electric valve comprises a box body and a circuit board assembly, wherein the circuit board assembly is accommodated in a cavity, the box body comprises a first shell and a second shell, the first shell and the second shell are connected through laser welding, the first shell comprises a welding rib, the second shell comprises a flash tank, the welding rib is positioned in the flash tank, the welding rib is welded through laser melting, and the welding rib is melted and overflows into the flash tank; the sealing requirement can be met by the arrangement, and the structure is simple.
Description
(the application is a divisional application of Chinese invention patent application with application number of 201810883261.0 and application date of 2018-08-06 and named as 'electrically operated valve')
Technical Field
The invention relates to the technical field of fluid control, in particular to a flow regulating device.
Background
With the increasing demand for control accuracy, electrically operated valves have been increasingly used as flow rate control devices. In order to facilitate control, the electrically operated valve at least includes a circuit board assembly, and in order to prevent the circuit board assembly from being corroded, the circuit board assembly needs to be sealed, and the circuit board assembly is usually disposed in the box body.
Disclosure of Invention
The invention aims to provide an electric valve which can improve the sealing performance of a box body.
In order to achieve the above purpose, the embodiment of the invention adopts the following technical scheme:
an electric valve comprises a stator assembly, a rotor, a sleeve and a valve assembly, wherein the valve assembly comprises a valve core, the stator assembly comprises a coil assembly, the stator assembly is positioned on the outer side of the rotor, the sleeve isolates the stator assembly from the rotor, the electric valve is provided with a valve port, the rotor can drive the valve core to move relative to the valve port, the electric valve comprises a box body and a circuit board assembly, the box body comprises a cavity, the circuit board assembly is accommodated in the cavity, the box body comprises a first shell and a second shell, the first shell and the second shell are connected through laser welding, the first shell comprises a welding rib, the second shell comprises a flash tank, the welding rib is positioned in the flash tank, the welding rib is melted by laser, and the welding rib is melted and overflows into the flash tank.
The electric valve comprises a box body and a circuit board assembly, wherein the circuit board assembly is accommodated in a cavity, the box body comprises a first shell and a second shell, the first shell and the second shell are connected through laser welding, the first shell comprises a welding rib, the second shell comprises a flash tank, the welding rib is positioned in the flash tank, the welding rib is welded through laser melting, and the welding rib is melted and overflows into the flash tank; the sealing requirement can be met by the arrangement, and the structure is simple.
Drawings
Figure 1 is a schematic perspective view from one perspective of a first embodiment of an electrically operated valve of the present invention;
figure 2 is a cross-sectional structural schematic view of one perspective of the electrically operated valve of figure 1;
figure 3 is a schematic diagram of the electrically operated valve of figure 1 from a perspective removed from the second housing and the circuit board assembly;
figure 4 is a schematic view of the electrically operated valve of figure 1 with one view of the second housing removed;
FIG. 5 is an enlarged view of the structure of portion A of FIG. 2;
FIG. 6 is a cross-sectional view of the stator assembly of FIG. 1;
FIG. 7 is a structural schematic diagram of one perspective of the combined structure of the stator assembly and the first housing;
fig. 8 is a schematic structural view of the first pin of fig. 7;
FIG. 9 is a schematic diagram of the fourth pin of FIG. 7;
FIG. 10 is a schematic front view of the structure of FIG. 7;
FIG. 11 is a schematic structural view of the eighth pin of FIG. 7;
FIG. 12 is an enlarged view of the structure of the portion B in FIG. 7;
figure 13 is a schematic view from another perspective of the combined structure of the stator assembly and the first housing;
FIG. 14 is an enlarged view of the structure of the portion C in FIG. 13;
FIG. 15 is a front view schematic of the combination of the circuit board assembly, stator assembly and first housing;
FIG. 16 is a schematic structural view of the first embodiment of the cartridge;
fig. 17 is an exploded view of the first and second housings of fig. 16;
FIG. 18 is a structural schematic view of a perspective of the second housing of FIG. 16;
FIG. 19 is a schematic view of the second housing of FIG. 16 from another perspective;
FIG. 20 is a cross-sectional structural view of the second housing of FIG. 17;
FIG. 21 is a schematic structural view of a second embodiment of the cartridge;
fig. 22 is an exploded view of the first and second housings of fig. 21;
fig. 23 is an exploded view of the second housing of fig. 22;
fig. 24 is a cross-sectional structural view of the second housing of fig. 22.
Detailed Description
The invention will be further described with reference to the following figures and specific examples:
the electric valve in the embodiment is mainly applied to a refrigeration system, is particularly used for controlling a flow field, and can be used for adjusting the flow of a working medium in the refrigeration system.
Referring to fig. 1 and 2, the electric valve 100 includes a stator assembly 110, a rotor 120, a circuit board assembly 130, a sleeve 140, a valve body 150, and a valve assembly; the stator assembly 110 comprises a coil assembly 1101 and a coil skeleton 1102, and the coil skeleton 1102 provides support for winding of the coil assembly 1101; the valve assembly includes a spool 160 and a transmission 170; the valve body 150 is provided with a first circulation channel and a second circulation channel, the first circulation channel and the second circulation channel are communicated through a valve port 1501, the valve port 1501 can be formed on the valve body 150 or a component with the valve port 1501 is fixedly arranged with the valve body 150, in this embodiment, a valve seat 1502 with the valve port 1501 is fixedly arranged with the valve body 150, so that the valve port is convenient to process; in this embodiment, stator assembly 110 is disposed at the periphery of rotor 120, stator assembly 110 and rotor 120 are separated by sleeve 140, that is, stator assembly 110 is disposed outside sleeve 140, rotor 120 is disposed inside sleeve 140, coil assembly 1101 of stator assembly 110 is electrically connected to circuit board assembly 130, a current with a certain time sequence is applied to coil assembly 1101, rotor 120 rotates in an excitation magnetic field generated by stator assembly 110, the rotation of rotor 120 is converted into an axial movement of valve element 160 through transmission device 170, rotor 120 can drive valve element 160 to move, valve element 160 can move relatively close to or away from valve port 1501, so that the flow cross-sectional area of valve port 1501 changes, and further the communication cross-sectional area of first channel and second channel changes, and further the flow rate of the system where electric valve 100 is located is adjusted.
The electric valve 100 further includes a box body 180, the box body 180 includes a cavity 3, and the circuit board assembly 130 is received in the cavity 3, so as to reduce corrosion of the circuit board assembly from the outside. In this embodiment, the case 180 includes a first case 1 and a second case 2, and referring to fig. 3, the first case 1 includes a bottom wall 11 and side walls extending from the bottom wall 11 to one side, the side walls include a first side wall 111, a second side wall 112, a third side wall 113, and a fourth side wall 114, the side walls are disposed opposite to each other, the first side wall 111 and the third side wall 113 are disposed opposite to each other, the second side wall 112 and the fourth side wall 114 are disposed opposite to each other, the first case 1 and the second case 2 are connected to form a cavity 3, and the circuit board assembly 130 is accommodated in the cavity 3, in this embodiment, the first case 1 and the second case 2 are both injection molded, specifically, the second case 2 is injection molded, the first case 1 is formed by insert injection molding with pins 4, the first case 1 and the stator assembly 110 are fixed by welding, the first case 1 and the second case 2 are fixed by welding, such as laser welding and ultrasonic welding, the two welding modes do not need solder, so that the influence of solder impurities on the cleanliness of the cavity can be further prevented; such a structure makes the molds corresponding to the first casing 1, the second casing 2, and the stator assembly 110 simple, and contributes to cost reduction. In this embodiment, the stator assembly 110 has a connection limiting portion 1103, the connection limiting portion 1103 is formed by protruding from the body of the stator assembly 110 to the periphery, the connection limiting portion 1103 is integrally formed with the injection insulation portion of the stator assembly 110, the bottom wall 11 of the first housing 1 is provided with an opening 1111 (as shown in fig. 17 and 22), the connection limiting portion 1103 extends into the cavity 3 through the opening 1111 of the bottom wall 11, the first housing 1 and the connection limiting portion 1103 are fixed by welding, and the welding manner includes ultrasonic welding; in this embodiment, the connection limiting portion 1103 includes a step portion 1106, a second protruding portion 1104 and a third protruding portion 1105, the second protruding portion 1104 and the third protruding portion 1105 are located at the top of the step portion 1106, the step portion 1106 contacts and is limited by the outer side of the first housing 1, the step portion 1106 is welded, fixed and sealed with the outer periphery of the first housing 1, the second protruding portion 1104 and the third protruding portion 1105 extend into the cavity 3 through the opening 1111, the step portion 1106 is welded, fixed and sealed with the outer side of the first housing 1, and pins are fixed on the second protruding portion 1104 and the third protruding portion 1105. In the present embodiment, the first case 1 and the second case 2 are fixed by laser welding. Referring to fig. 3, the first housing 1 includes a welding rib 12 and a first abutting surface 13, the first abutting surface 13 being provided on the outer periphery of the welding rib 12; the welding rib 12 and the first abutting surface 13 are arranged at the top ends of the first side wall 111, the second side wall 112, the third side wall 113 and the fourth side wall 114; with reference to fig. 3, 5 and 17, the second housing 2 includes an outer edge portion 201, a first limiting rib 202, and a flash tank 203, the flash tank 203 is formed between the outer edge portion 201 and the first limiting rib 202, after the first housing 1 and the second housing 2 are assembled, the welding rib 12 is located in the flash tank 203, the outer side of the first limiting rib 202 is abutted to the inner side of the side wall of the second housing, so as to limit the movement of the second housing 2 in the transverse direction with respect to the first housing 1, during welding, the first housing 1 and the second housing 2 are positioned and abutted, the welding rib 12 is welded by laser melting, and pressure is applied to the first housing 1 and the second housing 2, the welding rib 12 is melted and overflows into the flash tank 203, and the first abutting surface 13 is abutted to the end surface of the outer edge portion 201 or in clearance fit, thereby completing the welding and fixing of the first housing 1 and the second housing 2. The sealing structure can meet the sealing requirement, and is simple in structure and process. In this embodiment, the first housing 1 and the connection limiting portion 1103 are fixed by ultrasonic welding, and then the circuit board assembly 130 is assembled with the pin 4, and the first housing 1 and the second housing 2 are welded by laser. Of course, the first housing 1 and the connection limiting portion 1103 may be formed by laser welding, and the first housing 1 and the second housing 2 may be formed by laser welding; the first housing 1 and the connection limiting portion 1103 are ultrasonically welded, and the first housing 1 and the second housing 2 are ultrasonically welded. Of course, the first housing 1 may also be integrated with the stator assembly 110 by injection molding, and specifically, the first housing may be formed by integrated injection molding of the insulating portion of the stator assembly, which is beneficial to improving the sealing performance between the first housing and the stator assembly.
Referring to fig. 1 to 3 in combination, the box body 180 further includes a plug portion 115, the plug portion 115 is integrally formed with the first housing 1, the plug portion 115 forms a plug cavity 1151, an external plug is inserted into the plug cavity 1151 and is limited by the plug portion 115, and an external signal is inserted into the plug cavity 1151 through the plug and is electrically connected to the contact pin 4. In this embodiment, the patch portion 115 is formed on the first sidewall 111, and the patch portion 115 is formed integrally with the first sidewall 111.
The electric valve 100 includes pins 4, one end of each of the pins 4 is connected to the circuit board assembly 130, the pins 4 in this embodiment are compression pins, and the pins 4 are connected to the circuit board assembly 130 by a compression-fit (press-fit) technique, so that the pins 4 are connected to the circuit board assembly 130 without soldering. Referring to fig. 7, in this embodiment, the pins 4 are divided into three groups according to different application scenarios of the pins 4, which are respectively a first group of pins 41, a second group of pins 42, and a third group of pins 43, where the first group of pins 41 is fixedly disposed with the box body 180, the third group of pins 43 is fixedly disposed with the box body 180, the second group of pins 42 is fixedly disposed with the stator assembly 110, the first group of pins 41 is disposed near one sidewall of the box body 180, the third group of pins is disposed near the opposite sidewall, the second group of pins 42 is disposed between the first group of pins 41 and the third group of pins 43, the first group of pins 41 is used for connecting an external signal with the circuit board assembly 130, the second group of pins 42 is used for connecting the stator assembly 110 and the circuit board assembly 130, and the third group of pins 43 provides a part of positioning or supporting for the circuit board assembly 130 supported by the box body 180. In this embodiment, the first set of pins 41 is disposed adjacent to the first sidewall 111 of the box body 180, and the third set of pins 43 is disposed adjacent to the third sidewall 113 of the box body 180. The first group of pins 41 and the first side wall 111 are fixed by injection molding, the third group of pins 43 and the first housing 1 are fixed by injection molding, the bottom wall 13 has an opening 1111, the stator assembly 110 includes a connection limiting portion 1103, the second group of pins 42 and the connection limiting portion 1103 are fixed by injection molding, the connection limiting portion 1103 extends into the cavity 3 through the opening 1111, the connection limiting portion 1103 and the first housing 1 are fixed by welding, the first group of pins 41 is used for connecting an external signal and the circuit board assembly 130, the second group of pins 42 is used for connecting the stator assembly 110 and the circuit board assembly 130, and the third group of pins 43 is used for limiting or positioning the circuit board assembly 130. Wherein, first group contact pin 41 includes first pressure equipment portion 415, first connecting portion 416, first fixed part 417, and first fixed part 416 and first casing 1 are moulded plastics fixedly, and first pressure equipment portion 415 has first pinhole 414, and circuit board subassembly 130 includes first group connecting hole, and first group connecting hole includes first connecting hole, second connecting hole, third connecting hole, and first pressure equipment portion 415 impresses first connecting hole group and is connected with circuit board subassembly 130 electricity. The first group of pins 41 includes a first pin 411, a second pin 412, and a third pin 413, and the first pin 411, the second pin 412, and the third pin 413 are disposed at intervals in the same row. The first pin 411, the second pin 412 and the third pin 413 have the same structure, and the first pin 411 is described as an example below, referring to fig. 8, the first pin 411 includes a first press-fitting portion 415, a first connecting portion 416 and a first fixing portion 417, the first connecting portion 416 is disposed substantially perpendicular to the first press-fitting portion 415, and the first fixing portion 417 connects the first connecting portion 416 and the first press-fitting portion 415; the first press-fitting portion 415 has the first needle hole 414, so that when the first press-fitting portion 415 and the circuit board assembly 130 are press-fitted, the first press-fitting portion 415 can have a certain elastic deformation amount, which is beneficial to assembly, and meanwhile, damage caused by press-fitting of the circuit board assembly 130 cannot be caused. The first connecting portion 416 extends into the socket cavity 1151 of the socket portion 115, the first press-fitting portion 415 extends into the cavity 3, the circuit board assembly 130 is press-fitted and fixed to and electrically connected to the first press-fitting portion 415, and a part of the first fixing portion 417 is fixed to the first housing 1 by injection molding. The circuit board assembly 130 is provided with a first through hole, the first press-mounting part 415 is pressed into the first through hole, so that the first contact pin 411 and the circuit board assembly 130 do not need to be welded, meanwhile, the second contact pin 412 and the third contact pin 413 are also pressed into the second through hole and the third through hole which correspond to the second contact pin and the third contact pin, and thus, the three contact pins are connected with the circuit board assembly, compared with the common contact pins, the welding step can be omitted, so that tin paste, soldering flux and the like do not need to be used, a pollution source is eliminated from the source, meanwhile, the press-mounting is simple, the assembly process of the circuit board assembly is facilitated to be simplified, and the processing time of the electric valve 100 can be shortened; meanwhile, for the circuit board assembly, the first group of contact pins also play a role in supporting and fixing, so that the looseness of the circuit board assembly 130 due to vibration is reduced, the structure is relatively stable, and the reliability of the system is improved.
Referring to fig. 2 and 8 in combination, in this embodiment, the first fixing portion 417 of the first pin 411 is disposed at a certain distance from the bottom wall 11 of the first housing 1, in order to improve the connection strength between the first fixing portion 417 and the first housing 1, the bottom wall 11 of the first housing 1 protrudes toward the inner cavity of the first housing 1 to form a first protruding portion 18, the first protruding portion 18 is injection-molded to cover a portion of the first group of pins 41, the first fixing portion 417 is injection-molded and fixed with the first protruding portion 18, in order to ensure that the wall thickness of the first housing 1 is relatively uniform, the first housing has a concave portion 19 corresponding to the first protruding portion 18, and the concave portion 19 is recessed toward the inner cavity of the first housing 1 from the outside of the first housing 1, so that the first housing 1 contracts uniformly after being formed, and the deformation of the first housing 1 is reduced.
Referring to fig. 7, the second group of pins 42 includes a second press-fitting portion 426, a second connecting portion 427, and a second fixing portion 428, the second fixing portion 428 is fixed to the first housing 1 by injection molding, the second press-fitting portion 426 has a second eyelet 425, the circuit board assembly 130 includes a second group of connecting holes, the second group of connecting holes includes a fourth connecting hole, a fifth connecting hole, a sixth connecting hole, and a seventh connecting hole, and the second press-fitting portion 426 is pressed into the second connecting hole and electrically connected to the circuit board assembly 130. The second group of pins 42 includes a fourth pin 421, a fifth pin 422, a sixth pin 423, and a seventh pin 424, wherein the fourth pin 421 and the fifth pin 422 are fixed to the second protrusion 1104 by injection molding, the sixth pin 423 and the seventh pin 424 are fixed to the second protrusion 1105 by injection molding, and the second protrusion 1104 and the third protrusion 1105 are spaced apart by a predetermined distance. In this embodiment, each of the pins in the second group of pins 42 has the same structure, and the fourth pin 421 is taken as an example to be described below, referring to fig. 9, the fourth pin 421 includes a second press-fitting portion 426, a second connecting portion 427 and a second fixing portion 428, wherein the second connecting portion 427 and the second fixing portion 428 are disposed substantially perpendicular to each other, the second fixing portion 428 and the second press-fitting portion 426 are disposed on the same surface, and the second press-fitting portion 427 has a second eyelet 425, so that when the second press-fitting portion 426 is press-fitted to the circuit board assembly 130, the second press-fitting portion 426 can have a certain amount of elastic deformation, which is favorable for assembly, and at the same time, the circuit board assembly 130 cannot be damaged due to press-fitting. The circuit board assembly 130 has a fourth through hole, the second press-fitting portion 426 is press-fitted into the fourth through hole to be positioned with the circuit board assembly 130 and can be electrically connected to the circuit board assembly 130, as shown in fig. 6, the second connecting portion 427 is fixed and electrically connected to the coil assembly 1101, and the second fixing portion 428 and the connection positioning portion 1103 are fixed by an injection molding process. In this embodiment, the second connecting portion 427 and the second fixing portion 428 are both wrapped by the second protrusion 1104, the second connecting portion 427 is electrically connected to the coil component 1101, the second connecting portion is connected to the bobbin 1102 in a limited manner, and the second connecting portion 427 is fixedly connected to the injection molding portion; meanwhile, the fifth contact pin 422, the sixth contact pin 423 and the seventh contact pin 424 are also pressed into the fifth through hole, the sixth through hole and the seventh through hole of the circuit board assembly 130 corresponding to the fifth contact pin, the sixth through hole and the seventh through hole, so that compared with the use of common contact pins, the step of welding can be omitted, solder paste, scaling powder and the like are not needed, a pollution source is eliminated from the source, meanwhile, the press mounting is simple, the assembly process of the circuit board assembly is facilitated to be simplified, and the processing time of the electric valve 100 can be shortened; meanwhile, the circuit board assembly is supported and fixed, so that the structure is relatively stable, and the reliability of the system is improved. The second set of pins is not limited to 4 and may be 5 or 6.
In this embodiment, the patch panel 115 is disposed on the first sidewall 111 of the first housing 1, the first group of pins 41 is disposed near the first sidewall 111 of the first housing 1, the third group of pins 43 is disposed near the third sidewall 113 opposite to the first sidewall 111, the third group of pins 43 is used for limiting or positioning the circuit board assembly, and the second group of pins 42 is disposed between the first group of pins 41 and the third group of pins 43, i.e., the second group of pins 42 is disposed approximately in the middle, so that the circuit board assembly forms three supports and is more stable.
Referring to fig. 7 and 10, the third group of pins 41 includes a third press-fitting portion 434 and a third fixing portion 435, the third press-fitting portion 434 has a third eyelet 433, the circuit board assembly 130 includes a third group of connecting holes, the third group of connecting holes includes an eighth connecting hole and a ninth connecting hole, and the third press-fitting portion 434 is pressed into the third group of connecting holes and is fixedly connected with the circuit board assembly 130. The third group of pins 43 includes an eighth pin 431 and a ninth pin 432, wherein the eighth pin 431 is disposed near a corner formed by the second sidewall 112 and the third sidewall 113, the ninth pin 432 is disposed near a corner formed by the third sidewall 113 and the fourth sidewall 114, each pin of the third group of pins 43 has the same structure, and the eighth pin 431 is described below as an example, referring to fig. 11, the eighth pin 431 includes a third press-fitting portion 434 and a third fixing portion 435, the third press-fitting portion 434 and the third fixing portion 435 are in the same plane, and the third press-fitting portion 434 has a third pin eye 433, so that when the third press-fitting portion 434 is press-fitted to the circuit board assembly 130, the third press-fitting portion 434 can have a certain elastic deformation amount, which is favorable for assembly, and at the same time, the circuit board assembly cannot be damaged due to press-fitting; circuit board subassembly 130 has the eighth connecting hole, third press fitting portion 434 impresses the eighth connecting hole and is connected with circuit board subassembly 130, third fixed part 435 is fixed with first casing 1 injection molding, the box body includes the base station, the base station includes first base station, the second base station, the third base station, the fourth base station, part third fixed part is fixed or fixed connection with at least part base station injection molding, in this embodiment, part third fixed part is fixed or fixed connection with first base station injection molding, eighth contact pin 431 still includes anticreep portion 437, anticreep portion 437 is the annular groove who forms in third fixed part 435, eighth contact pin 431 and first casing 1 back of moulding plastics, first casing 1 part gets into the annular groove, prevent that eighth contact pin 431 from coming off. Meanwhile, the ninth pin 432 is pressed into the ninth connecting hole of the corresponding circuit board assembly 130, so that the circuit board assembly 130 far away from the first side wall 111 is supported and fixed, the structure is relatively stable, the system reliability is improved, and meanwhile, the stability of stress during press mounting can be improved and the system reliability is improved by adding the third group of pins 43. The contact pins of the embodiment of the present invention include but are not limited to 9 contact pins, which can be increased or decreased as needed, for example, the third group of contact pins 43 includes but is not limited to the eighth contact pin and the ninth contact pin, and the contact pins that can support and fix the contact pins can be added at the corner position near the first side wall, so that the structure is more stable, the stability of the stress during press mounting can be improved, the assembly process of the circuit board assembly is facilitated, and the system reliability is improved, of course, the third group of contact pins 43 can also be a contact pin supporting circuit board assembly. The circuit board assembly and the contact pins are fixed and limited through press fitting, welding is not needed, the number of solder impurities is effectively reduced, the cleanliness of the box body is facilitated, and the working environment of the circuit board assembly is improved. In other embodiments, the third set of pins may not have a third eyelet.
In this embodiment, the circuit board assembly 130 is limited by the pin 4, and in addition, one end surface of the circuit board assembly 130 is limited by the base station 15 integrally formed with the first housing 1; the height of the base 15 is relatively greater than the height of the first protrusion 18, the second protrusion 1104 and the third protrusion 1105, which is beneficial to fully connecting the circuit board assembly and the contact pin. Referring to fig. 7, 10, 12, 13, 14, the first housing 1 includes a base platform 15, the base platform 5 protrudes from the bottom of the box body 180, the base platform 15 includes a limiting portion 16, the base platform 15 is divided into a first base platform 151, a second base platform 152, a third base platform 153, and a fourth base platform 154 according to the different positions of the base platform, the first base platform 151 and the second base platform 152 are disposed near the third side wall 113, the first base platform 151 is disposed near the second side wall, the second base platform 152 is disposed near the fourth side wall, the third base platform 153 and the fourth base platform 154 are disposed near the first side wall 111, the third base platform 153 is disposed near the fourth side wall 114, and the fourth base platform 154 is disposed near the second side wall 112, wherein the first base platform 151 and the second base platform 152 have the same structure, and the third base platform 153 and the fourth base platform 154 have the same structure, which can facilitate processing. Referring to fig. 12, the first base 151 includes a position-limiting portion 16 and a first column portion 1511, the position-limiting portion 16 includes a first position-limiting portion 161 and a second position-limiting portion 162, the first position-limiting portion 161 and the second position-limiting portion 162 are disposed at a predetermined distance, a plane of an upper end of the first position-limiting portion 161 and a plane of an upper end of the second position-limiting portion 162 are disposed, the first column portion 1511 is connected to the first position-limiting portion 161 and the second position-limiting portion 162, a third fixing portion 435 of the eighth pin 431 is fixed to the first column portion 1511 by injection molding, the first column portion 1511 covers part of the third fixing portion 435, the plane of the upper end of the first column portion 1511 is relatively lower than the plane of the upper end of the first position-limiting portion 161, and the top end of the eighth pin 431 is relatively higher than the plane of the first position-limiting portion 161, so that the first position-limiting portion 161 and the second position-limiting portion 162 abut against the lower end surface of the circuit board assembly 130 after the eighth pin 431 is press-mounted to the circuit board assembly 130, therefore, the circuit board assembly 130 is limited to continuously move towards the bottom wall 11 of the first shell 1, and meanwhile, the first columnar portion 1511 covers the eighth contact pin 431 for a section of length, so that the connection strength of the eighth contact pin 431 is improved, the stress stability during press mounting is improved, and the structural stability is improved; second base station 152 is the same with first base station structure, including spacing portion and second columnar portion, and spacing portion includes spacing portion of third, the spacing portion of fourth, and the plane at second columnar portion upper end place is less than relatively the plane at the spacing portion upper end place of third, ninth contact pin 432 and the second columnar portion of second base station 152 are moulded plastics fixedly, and the position relation is the same with the position relation of eighth contact pin, no longer gives things to details.
Referring to fig. 13 and 14, the third base 153 includes a fifth limiting portion 165 and a sixth limiting portion 166, the fifth limiting portion 165 and the sixth limiting portion 166 are disposed at a preset distance, after the circuit board assembly 130 is assembled, the lower end surface of the circuit board assembly 130 abuts against the fifth limiting portion 165 and the sixth limiting portion 166, and the circuit board assembly 130 is limited to continue to move towards the bottom wall of the first housing; the fourth base station has the same structure as the third base station, and comprises a seventh limiting part and an eighth limiting part, which are not repeated.
The first shell 1 is further provided with a guide rib 17, the first shell further comprises a guide rib, the guide rib is arranged between the base station and the side wall of the first shell, the guide rib and the side wall of the first shell are integrally formed, the height of the guide rib is larger than that of the base station, the circuit board assembly is provided with a notch part matched with the guide rib, and part of the guide rib extends into the notch part; of course, the guide ribs may be provided inside the first base 151, the second base 152, and the fourth base 154; circuit board assembly 130 still is provided with the breach portion 137 with direction muscle 17 complex, and direction muscle 17 is used for circuit board assembly 130's installation guide, and location and direction when the circuit board assembly 130 that can be better was adorned like this improve assembly efficiency, prevent the mistake dress of assembly line circuit board assembly 130. The number of the guide ribs 17 includes, but is not limited to, 1, and may be increased as needed.
Referring to fig. 3, 10, and 15, the first housing 1 further includes a positioning rib 14 integrally formed with a side wall of the first housing, the positioning rib is formed protruding from the second side wall and/or the third side wall and/or the fourth side wall toward the inner cavity of the first housing, the circuit board assembly is provided with a groove structure, a portion of the positioning rib extends into the groove structure, specifically, the height of the positioning rib 14 is greater than the height of the base, the positioning rib 14 is divided into a first positioning rib 141, a second positioning rib 142, and a third positioning rib 143 according to different installation positions, the first positioning rib 141 is disposed inside the second side wall 112, the second positioning rib 142 is disposed inside the third side wall 113, the third positioning rib 143 is disposed inside the fourth side wall 114, the positioning rib 14 is formed protruding from the side wall toward the inner cavity of the first housing 1, and the circuit board assembly 130 is provided with the first positioning rib 141, the second positioning rib 142, the third positioning rib 143, and the positioning rib 142, The groove structure 136 engaged with the third positioning rib 143 may not be provided with the groove structure 136, and the outer edge of the circuit board assembly 130 abuts against the positioning rib. After the circuit board assembly 130 is installed, the circuit board assembly 130 is abutted to or in clearance fit with the positioning ribs 14, so that the circuit board assembly 130 can be better guided conveniently when being installed, the pin 4 is ensured to be aligned with the through hole of the circuit board assembly 130, and the assembling efficiency is improved.
Referring to fig. 1 and 2, the technical scheme designs a waterproof breathable film 5 and a communication channel, air in the cavity 3 of the box body 180 can be exhausted out of the cavity through the waterproof breathable film 5 and the communication channel, thus, the water vapor in the cavity 3 can be discharged out of the box body 180 through the waterproof breathable film 5 and the communication channel, when the external air enters the cavity 3 through the waterproof breathable film 5, the waterproof breathable film 5 can isolate the water vapor in the external air, so that the external water vapor can not enter the cavity through the waterproof breathable film 5, the internal environment of the cavity 3 can be kept relatively dry, so that the condensation phenomenon which is possibly generated along with the temperature change of the air in the cavity 3 under the environment with relatively high humidity can be prevented, the circuit board assembly 130 and the like can be prevented from being damaged by the condensation, meanwhile, the relative balance of the internal pressure and the external pressure of the box body 180 can be ensured, and meanwhile, pollution particles in the external air can be isolated.
Waterproof ventilated membrane 5 includes fixed connection portion 51 and ventilation portion 52, and fixed connection portion 51 encircles ventilation portion 52 and sets up, and fixed connection portion 51 sets up through scalding pressure or welding or fixed glue with box body 180, and it is inside and outside gaseous unable through fixed connection portion intercommunication cavity like this, can only pass through ventilation portion intercommunication cavity inside and outside, prevents that outside water from getting into the cavity through connecting the fixed part.
Fig. 16 shows a first embodiment of the cartridge 180 in this embodiment, the cartridge 180 includes a first casing 1 and a second casing 2, the first casing 1 and the second casing 2 are fixedly connected by welding, and a joint of the first casing 1 and the second casing 2 is hermetically disposed, where the first casing 1 is the same as the first casing 1, and is not described again, and the second casing 2 is described below.
Referring to fig. 17, the second housing 2 includes a substrate 21, the case body 180 further includes a communication channel for a waterproof breathable film 5, the waterproof breathable film is fixedly disposed in contact with the case body, the cavity is disposed in gas communication with the exterior of the case body through the waterproof breathable film and the communication channel, the waterproof breathable film is fixedly disposed in the second housing, the second housing has a communication channel and a first concave portion, the first concave portion is formed by sinking from the cavity to the exterior of the second housing, the communication channel is disposed in communication with the first concave portion, the waterproof breathable film is accommodated in the first concave portion and fixedly disposed, the cavity is disposed on one side of the waterproof breathable film, the communication channel is disposed on the other side of the waterproof breathable film, in this embodiment, the waterproof breathable film 5 is fixed on the inner side of the substrate 21, the connection between the waterproof breathable film 5 and the substrate 21 is hermetically disposed, for example, the waterproof breathable film 5 and the substrate 21 can be fixed and sealed by ironing or welding, the welding mode can be ultrasonic welding, and certainly, the welding mode can also be fixed and sealed by fixing glue, and certainly, the welding mode can also be fixed by other modes; the base plate 21 has the communicating channel, and the box body 180 is kept in gas communication with the cavity 3 through the communicating channel and the waterproof breathable film, and through designing the gap and the material of the waterproof breathable film 5, the waterproof breathable film 5 can ensure that external water cannot enter the cavity through the waterproof breathable film 5, and meanwhile, the external gas communication is kept with the box body. In this embodiment, the waterproof breathable film 5 is made of a material having waterproof and breathable functions, and in this embodiment, the main component of the material of the waterproof breathable film 5 is Expanded Polytetrafluoroethylene (EPTFE), but other materials having similar functions may be adopted.
The base plate 21 includes an outer edge portion 201, a first limiting rib 202 and a flash tank 203, the flash tank 203 is formed between the outer edge portion 201 and the first limiting rib 202, the first casing 1 and the second casing 2 are assembled, the welding rib 12 is arranged in the flash tank 203, and the outer side of the first limiting rib 202 is abutted against the inner side of the side wall of the second casing 1.
For convenience of description, a surface of the substrate 21 relatively far from the circuit board assembly 130 is referred to as a first surface 211, a surface of the substrate 21 relatively close to the circuit board assembly 130 is referred to as a second surface 212, and the waterproof breathable film 5 is disposed on the second surface 212.
Referring to fig. 19 and 20, the substrate 21 has a first concave portion 6, the first concave portion 6 is formed by being recessed from the second surface 212 to the first surface 211, the first concave portion 6 is communicated with the communication channel, the second housing 2 includes a first bottom wall 61, a second bottom wall 62 and a first concave portion side wall 63, the first bottom wall 61 and the second bottom wall 62 form the first concave portion 6, the first concave portion side wall 63 is disposed between the first bottom wall 61 and the second bottom wall 62, a plane where the first bottom wall is located is relatively lower than a surface where the second housing is located, the second bottom wall is relatively lower than the first bottom wall, the communication channel is formed in the second bottom wall, the waterproof breathable film is fixedly disposed on the first bottom wall, the waterproof breathable film divides the first concave portion into a first cavity and a second cavity, the second cavity is communicated with the through hole, and the first cavity is communicated with the cavity.
Specifically, the first bottom wall 61 and the second bottom wall 62 are spaced at a certain distance, the waterproof breathable film 5 is fixedly arranged with the first bottom wall 61, the plane of the first bottom wall 61 is relatively lower than the plane of the first surface 211, a part of the waterproof breathable film 5 is in contact with the first bottom wall 61, the periphery of the waterproof breathable film 5 and the first bottom wall 61 are fixed and sealed by ironing or welding, the welding mode can be ultrasonic welding, and can also be fixed and sealed by fixing glue, so as to ensure the waterproof performance and the strength and the sealing performance of the welding part, meanwhile, the plane of the first bottom wall 61 is lower than the plane of the first surface 211, after the waterproof breathable film 5 is fixed, and after the waterproof breathable film is connected by ironing, welding or fixing glue, the waterproof breathable film is approximately flush with the second surface 212 or is relatively lower than the second surface 212, so that the waterproof breathable film 5 can be prevented from protruding out of the plane of the second surface 212 after being, the position of the waterproof breathable film can be preset by arranging the first bottom wall, so that the process of determining the installation position is simplified; of course, the waterproof breathable film 5 may also be disposed protruding from the second surface 212.
In the present embodiment, the communication passage includes a first portion including a first groove 64, a second groove 65, a third groove 66, and a fourth groove 67, the first groove 64, the second groove 65, the third groove 66, and the fourth groove 67 are formed by being recessed from the outer surface toward the inner surface of the second housing, the first groove 64, the second groove 65, the third groove 66, and the fourth groove 67 have the same structure and are disposed around the first recess 6, and the first groove 64, the second groove 65, the third groove 66, and the fourth groove 67 are respectively communicated with the first recess 6. The first concave part 6 further comprises a shielding part, the shielding part protrudes out of the side wall of the first concave part, the protruding height of the shielding part is larger than the aperture of the communication channel, the shielding part is away from the second bottom wall by a set distance, specifically, the second shell 2 comprises a shielding part 631, the shielding part 631 protrudes from the side wall 63 of the first concave part to the first concave part 6, the protruding height of the shielding part 631 is relatively larger than or equal to the width of the first groove 64, the second groove 65, the third groove 66 and the fourth groove 67 of the communication channel, and the lowest end of the shielding part 631 is away from the second bottom wall by a set distance, so that the provided shielding part 631 enables the communication channel to form a labyrinth structure, the gap of the communication channel is reduced on the premise of ensuring the circulation, foreign matters with certain external sizes enter the first concave part 6, and the phenomenon that the foreign matters directly touch the waterproof breathable film 5 to damage the waterproof breathable film 5 can be reduced; of course, the angle between the opening direction of the groove holes of the first groove 64, the second groove 65, the third groove 66, and the fourth groove 67 and the first surface may be smaller than 90 or larger than 90, that is, the extending direction of the first groove 64, the second groove 65, the third groove 66, and the fourth groove 67 is not perpendicular to the first surface 211, and thus, the damage of the waterproof breathable film 5 due to the direct contact of foreign matter with the waterproof breathable film 5 may be reduced. The arrangement of the first groove 64, the second groove 65, the third groove 66 and the fourth groove 67 ensures that enough space is reserved in the communication channel, and the air circulation area is ensured. Through setting up waterproof ventilated membrane 5, the air in the cavity 3 of box body 180 can be through the box body that waterproof ventilated membrane 5 discharged, the vapor in the cavity 3 passes through waterproof ventilated membrane 5 and discharges box body 180, and waterproof ventilated membrane 5 can keep apart the vapor in the outside air when the outside air gets into cavity 3 through waterproof ventilated membrane 5, outside vapor can not get into the cavity through waterproof ventilated membrane 5 like this, can make the 3 internal environment of cavity keep relatively dry, can prevent under the environment of relatively higher humidity like this, the air in the cavity 3 probably is along with the condensation phenomenon that temperature variation produced, can prevent that the condensation from producing damages to circuit board subassembly 130 etc., also can guarantee the relative balance of the internal and external pressure of box body 180 simultaneously. Meanwhile, external liquid molecules and pollution particles can be prevented from entering the cavity 3 through the waterproof breathable film 5, the waterproof and foreign-body-preventing effects are achieved, and water and foreign-body particles can be prevented from damaging circuit board components and the like. Of course, the waterproof breathable film 5 may be attached to the first casing 1 as needed. In order to prevent the water from accumulating in the first recess 6 when the electric valve 100 is applied, the first recess 6 may be disposed to be inclined relatively or downward relatively. In another statement, the first recess has a first recess side wall 631, the communication passage includes a first groove 64, a second groove 65, a third groove 66, and a fourth groove 67, the first groove 64, the second groove 65, the third groove 66, and the fourth groove 67 are formed by outwardly recessing the first recess side wall 631, and the first groove 64, the second groove 65, the third groove 66, and the fourth groove 67 do not penetrate the first housing 1.
Fig. 21-24 show a second embodiment of the case, which is different from the first embodiment mainly in the second case 2, in this embodiment, the second case 2 includes a base plate 21 and a cover plate 22, the base plate and the cover plate are respectively formed and fixedly connected, a communication channel is disposed between the base plate and the cover plate, the case 180 is provided with a waterproof breathable film 5, in this embodiment, the waterproof breathable film 5 is installed between the base plate 21 and the cover plate 22, in this embodiment, the base plate 21 is formed by injection molding alone, the cover plate 22 is formed by injection molding alone, and the cover plate 22 is fixedly connected by welding or snapping, and the welding mode can be ultrasonic welding.
The clearance between intercommunication passageway base plate 21 and apron 22 keeps gaseous intercommunication through intercommunication passageway and waterproof ventilated membrane in the box body outside and the cavity, through designing the space and the material to waterproof ventilated membrane, such waterproof ventilated membrane can guarantee that external water can not get into the box body through waterproof ventilated membrane, and external and cavity keep gaseous intercommunication simultaneously. In this embodiment, the waterproof breathable film 5 is made of a material having waterproof and breathable functions, and in this embodiment, the main component of the waterproof breathable film material is Expanded Polytetrafluoroethylene (EPTFE), but other materials having similar functions may be adopted.
Referring to fig. 23, the substrate 21 includes a second concave portion 7 and a first through hole portion 8, the second concave portion 7 is formed by being recessed from the outside of the second housing toward the cavity, the second concave portion 7 is communicated with the cavity 3 through the first through hole portion 8, the second concave portion 7 includes a second concave portion side wall 72 and a second concave portion bottom 71, the first through hole portion 8 is disposed through the second concave portion bottom 71, the fixing connection portion of the waterproof breathable film 5 is fixedly disposed with the second bottom wall, specifically, the second housing 2 is provided with the second concave portion 7 and the first through hole portion 8, and the first through hole portion 8 is disposed through the second concave portion bottom 7. The second recess 7 comprises a second recess bottom 71 and a second recess side wall 72, the second recess bottom 71 and the second recess side wall 72 surrounding the second recess 7 inner cavity. The second casing further includes a first welding portion, the first welding portion protrudes from the bottom of the second concave portion, the first welding portion is spaced from the sidewall of the second concave portion by a set distance, the cover plate and the substrate are welded and fixed by the first welding portion, a first installation portion is disposed between the first welding portion and the first through hole portion, the periphery of the waterproof breathable film is in contact and fixed with the first installation portion, specifically, the second concave portion bottom 71 has a first welding portion 711, the first welding portion 711 protrudes from the second concave portion bottom 71, the first welding portion 711 is close to the sidewall 72 of the second concave portion and is spaced by a set distance, a first installation portion 712 is disposed between the first welding portion 711 and the first through hole portion 8, in this embodiment, the first welding portion 711 is four and is spaced by a predetermined distance, the periphery of the waterproof breathable film 5 is in contact with the first installation portion 712 and is fixed and sealed by ironing or welding, and the welding manner may be ultrasonic welding, certainly also can fix and seal through the fixed glue, first welding part 711 has first muscle portion 2211, first muscle portion 2211 is outstanding the top setting of first welding part 711, first muscle portion 2211 is from the top cross-sectional area increase gradually downwards, first muscle portion 2211 is used for with apron 22 welding, the setting is favorable to improving the joint strength of first muscle portion 2211 and first welding part 711 on the one hand like this, on the other hand the top of first muscle portion 2211 contacts with apron 22, because the cross-section of the top of first muscle portion 2211 is less, it is less to reach the energy that first muscle portion 2211 melts and welded fastening needs, be favorable to energy-conservation, still be favorable to reducing the influence to other parts of apron 22 and box body 180. The cover plate 22 includes a peripheral side portion 220, a portion of the second recess side wall 72 is in abutting engagement or in close clearance engagement with the peripheral side portion 220, and a communication passage is formed between the portion of the second recess side wall 72 and the peripheral side portion 220; the communicating channel comprises a first part and a second part, wherein the side wall of the second concave part or/and the peripheral side part is/are provided with a groove, the groove is formed by the side wall of the second concave part or/and the peripheral side part in a concave mode, the length of the groove is smaller than the length of the cover plate by being more than or equal to one third of the length of the cover plate, the second part comprises a notch matched with the groove in the peripheral side part of the cover plate, the first part comprises a gap formed between the side wall of the second concave part or/and the peripheral side part through the groove, and the second part comprises a gap formed between the cover plate and the base plate through the notch. Specifically, the grooves include a fifth groove 721, a sixth groove 722, a seventh groove 723, and an eighth groove 724, the fifth groove 721, the sixth groove 722, the seventh groove 723, and the eighth groove 724 are formed by recessing from the second recess sidewall 72 or/and the peripheral side portion 220, the length of the fifth groove 721, the sixth groove 722, the seventh groove 723, and the eighth groove 724 is less than the length of the cover plate by one third or more, the second portion includes the peripheral side portion 220 of the cover plate 22 having a notch 2201 matching with the fifth groove 721, the sixth groove 722, the seventh groove 723, and the eighth groove 724, the first portion includes a gap formed by the groove between the second recess sidewall 72 or/and the peripheral side portion 220, and the second portion includes a gap formed by the cover plate 22 and the base plate 21 through the notch. The first part is communicated with the second part, and the lengths of the fifth groove 721, the sixth groove 722, the seventh groove 723 and the eighth groove 724 are less than or equal to one third of the length of the cover plate, so that a labyrinth structure is formed under the condition of ensuring the flow channel, and the waterproof breathable film 5 is prevented from being damaged due to the fact that foreign matters directly touch the waterproof breathable film 5. The end of the cover plate 22 connected to the second recess bottom 71 may also be provided with a welding rib for connection to the base plate 21. In this embodiment, the function of the waterproof breathable film 5 is the same as that of the waterproof breathable film 5 in the first embodiment, and is not described herein again. In order to prevent the second recess 7 from accumulating water when the electric valve 100 is applied, the second recess 7 may be disposed to be inclined relatively or downward relatively. In the present embodiment, the fifth groove 721, the sixth groove 722, the seventh groove 723, and the eighth groove 724 are formed in the base plate, and the notches are formed in the cover plate, so that the communication passages are formed, and compared with the case where the communication passages are formed simultaneously with the base plate 21 or the cover plate 22, the base plate 21 and the cover plate 22 are easily formed, and the tooling is simple.
The above first recess and the second recess are for distinguishing different embodiments, and both are recesses.
It should be noted that: although the present invention has been described in detail with reference to the above-mentioned embodiments, it should be understood by those skilled in the art that the present invention may be modified and equivalents may be substituted for those skilled in the art, and all technical solutions and modifications that do not depart from the spirit and scope of the present invention should be covered by the claims of the present invention.
Claims (6)
1. An electrically operated valve comprising a stator assembly, a rotor, a sleeve, and a valve assembly, the valve assembly comprising a valve core, the stator assembly comprising a coil assembly, the stator assembly located outside of the rotor, the sleeve separating the stator assembly and the rotor, the electrically operated valve having a valve port, the rotor being capable of moving the valve core relative to the valve port, the electrically operated valve characterized by: the electric valve comprises a box body and a circuit board assembly, the box body comprises a cavity, the circuit board assembly is contained in the cavity, the box body comprises a first shell and a second shell, the first shell and the second shell are connected through laser welding, the first shell comprises a welding rib, the second shell comprises a flash tank, the welding rib is located in the flash tank, the welding rib is melted through laser, and the welding rib is melted and overflows into the flash tank.
2. The electric valve of claim 1, wherein the first housing further comprises a first abutting surface disposed at an outer periphery of the welding rib, and a tip end of the welding rib is farther from the stator assembly relative to the first abutting surface.
3. The electrically operated valve of claim 2, wherein the second housing further comprises a rim portion and a first retaining rib, the flash tank is formed between the rim portion and the first retaining rib, a portion of the second housing forms a bottom wall of the flash tank, a top end of the rim portion is closer to the stator assembly relative to the bottom wall of the flash tank, and a top end of the retaining rib is closer to the stator assembly relative to the bottom wall of the flash tank.
4. The electric valve according to claim 3, wherein the tip of the welding rib abuts against the bottom wall of the flash tank, the welding rib is laser-melted and pressed against the first housing and the second housing, the welding rib is melted and connected to the bottom wall of the flash tank, the outer edge portion abuts against or is clearance-fitted to the first abutting surface to restrict the position of the second housing relative to the first housing, more than a portion of the welding rib overflows into the flash tank after being melted, and the outer side of the first stopper rib abuts against the inner side of the side wall of the first housing to restrict the movement of the second housing relative to the first housing in the lateral direction.
5. The electric valve according to claim 4, wherein the first housing comprises a bottom wall and a side wall extending from the bottom wall to one side, the side wall comprises a first side wall, a second side wall, a third side wall and a fourth side wall, the side walls are oppositely arranged, the first side wall and the third side wall are oppositely arranged, the second side wall and the fourth side wall are oppositely arranged, and the welding rib and the first abutting surface are arranged at the top ends of the first side wall, the second side wall, the third side wall and the fourth side wall.
6. The electric valve according to claim 5, wherein the first housing and the insulating portion of the stator assembly are separately formed and then fixedly connected by welding or the first housing and the insulating portion of the stator assembly are integrally formed by injection molding.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810617774 | 2018-06-15 | ||
| CN2018106177747 | 2018-06-15 | ||
| CN201810883261.0A CN110608308A (en) | 2018-06-15 | 2018-08-06 | Electric valve |
Related Parent Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810883261.0A Division CN110608308A (en) | 2018-06-15 | 2018-08-06 | Electric valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113154114A true CN113154114A (en) | 2021-07-23 |
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ID=68888968
Family Applications (4)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110465501.7A Pending CN113154114A (en) | 2018-06-15 | 2018-08-06 | Electric valve |
| CN201810883261.0A Pending CN110608308A (en) | 2018-06-15 | 2018-08-06 | Electric valve |
| CN202011317342.8A Pending CN112555487A (en) | 2018-06-15 | 2018-08-06 | Electric valve |
| CN202411072453.5A Pending CN118793827A (en) | 2018-06-15 | 2018-08-06 | Electric valve |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201810883261.0A Pending CN110608308A (en) | 2018-06-15 | 2018-08-06 | Electric valve |
| CN202011317342.8A Pending CN112555487A (en) | 2018-06-15 | 2018-08-06 | Electric valve |
| CN202411072453.5A Pending CN118793827A (en) | 2018-06-15 | 2018-08-06 | Electric valve |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN114811154B (en) * | 2021-01-27 | 2024-04-02 | 盾安环境技术有限公司 | Electronic expansion valve and automobile with same |
| WO2024002240A1 (en) * | 2022-07-01 | 2024-01-04 | 浙江三花汽车零部件有限公司 | Coil assembly and electric valve |
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| CN207364390U (en) * | 2017-08-24 | 2018-05-15 | 杭州三花研究院有限公司 | Motor-driven valve |
Also Published As
| Publication number | Publication date |
|---|---|
| CN118793827A (en) | 2024-10-18 |
| CN112555487A (en) | 2021-03-26 |
| CN110608308A (en) | 2019-12-24 |
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