CN115360887B

CN115360887B - Inverter shell

Info

Publication number: CN115360887B
Application number: CN202211270826.0A
Authority: CN
Inventors: 王子超; 康立朋; 张博; 程东旭; 李勇; 洪振海; 潘贻丰
Original assignee: SUZHOU WANSONG ELECTRIC CO Ltd
Current assignee: SUZHOU WANSONG ELECTRIC CO Ltd
Priority date: 2022-10-18
Filing date: 2022-10-18
Publication date: 2023-01-03
Anticipated expiration: 2042-10-18
Also published as: CN115360887A

Abstract

The invention relates to an inverter shell, which is used for protecting a protection mechanism of an internal component, and also comprises an adjusting mechanism used for fixing the internal component by matching with the protection mechanism and a fixing mechanism used for locking the adjusting mechanism, wherein a plurality of converters are uniformly arranged in the protection mechanism, the converters are arranged on a converter base, the bottom of the converter base is connected with an outer shell through the adjusting mechanism, and the fixing mechanism is arranged on the side surface of the adjusting mechanism, so that the technical problems that in the existing inverter installation, gaps exist between components and a radiator due to machining and installation errors of the components, and the heat conduction effect is not ideal and the heat dissipation effect is not good are solved.

Description

Inverter shell

Technical Field

The invention relates to the field of inverter shells, in particular to an inverter shell.

Background

The traction inverter is the core of a transmission system of the motor train unit, is used for supplying power to a traction motor of the motor train unit, and provides driving power for the motor train unit through the traction motor. The traction inverter comprises a control module, a supporting capacitor and a voltage sensor inside, and can generate heat after being used for a long time, and easily damaged parts are discharged in time.

The invention discloses a chinese patent publication No. CN108521227B, which relates to an inverter heat dissipation housing for a photovoltaic device, including a housing 1, wherein a glass ball 2 is disposed on an inner wall of the housing 1, mercury is filled in the glass ball 2, a piston sleeve 3 is connected above the glass ball 2, a lifting rod 4 is disposed in the piston sleeve 3, a first piston 5 is connected to a lower end of the lifting rod 4, a thin rod 6 is mounted at an upper end of the lifting rod, a first conductive sheet 7 and a second conductive sheet 8 are symmetrically mounted at two ends of the thin rod 6, a first conductive box 9 is disposed above the first conductive sheet 7, a first conductive box copper sheet 10 is mounted in the first conductive box 9, a second conductive box 12 is disposed above the second conductive sheet 8, and a second conductive box copper sheet 13 is mounted in the second conductive box 12.

Disclosure of Invention

The invention provides an inverter shell, which aims to solve the technical problems that in the existing inverter installation, machining and installation errors exist in all parts, so that gaps exist between the parts and a radiator, and the heat conduction effect is not ideal and the heat dissipation effect is not good.

The inverter shell adopts the following technical scheme: the protection device comprises a protection mechanism for protecting internal components, an adjusting mechanism for fixing the internal components by matching with the protection mechanism, and a fixing mechanism for locking the adjusting mechanism, wherein a plurality of converters are uniformly arranged in the protection mechanism, the converters are arranged on a converter base, the bottom of the converter base is connected with an outer shell through the adjusting mechanism, and the fixing mechanism is arranged on the side surface of the adjusting mechanism;

the adjusting mechanism comprises a fixed bottom plate and a movable bottom plate, the movable bottom plate is arranged on the upper side of the fixed bottom plate, a pressing plate is formed at the upper end of the movable bottom plate, the two movable bottom plates are symmetrically arranged at two ends of the converter base, a limiting groove matched with the converter base is formed on one side of the movable bottom plate corresponding to the converter base, two half-moon sliding blocks are arranged in the limiting groove, the lower ends of the half-moon sliding blocks are connected with a rotating shaft, the rotating shaft is rotatably connected in the groove of the movable bottom plate, the lower end of the rotating shaft penetrates through the movable bottom plate, a conical block is connected at the bottom of the rotating shaft, an opening is formed in the conical block, a force application ball is correspondingly arranged at the opening of the initial position of the conical block, the force application ball is slidably connected to the inner side of the fixed bottom plate, a groove for accommodating the force application ball is formed in the inner side of the fixed bottom plate, and a force application spring is arranged in the groove;

the fixing mechanism comprises a clamping seat, the fixing base plate is located on the outer side of the movable base plate, a clamping seat is arranged on the fixing base plate, a groove for accommodating the clamping seat is formed in the fixing base plate, the clamping seat is connected in the groove of the fixing base plate in a sliding mode, a bidirectional lead screw is connected to the clamping seat in a penetrating mode, supporting blocks are formed on two sides of the upper end of the clamping seat, grooves are formed in the supporting blocks corresponding to the side faces of the movable base plate, a lifting conical block is installed in each groove, the outer side face of the lifting conical block is an inclined face, a stress conical block is matched on the inclined face and connected in the groove of the supporting blocks in a sliding mode, and the stress conical block corresponds to one end of the movable base plate and is provided with a pre-tightening block.

Further, a plurality of groups the PMKD passes through welded connection and is inboard at the shell body, the heating panel is installed to the shell body upper end, the heating panel is used for hugging closely the lower extreme the top surface of converter, thereby it is right the converter dispels the heat.

Furthermore, the rotating shaft is fixedly connected with the semilunar slider and the conical block, a circular groove is formed in the position, corresponding to the semilunar slider, of the movable bottom plate, the semilunar slider is limited by the circular groove, and can rotate along with the situation when being extruded by the end face of the converter base in the sliding process, so that the rotating shaft and the conical block at the lower end are driven to rotate.

Furthermore, the conical block is rotatably connected with the fixed base plate, a groove for limiting the lifting of the conical block is formed in the fixed base plate, the conical block can move up and down through the limit of the fixed base plate, and the side surface of the conical block is supported by the force application ball.

Furthermore, the pre-tightening block is provided with patterns corresponding to one side of the movable bottom plate, and the friction force between the pre-tightening block and the movable bottom plate is increased through the patterns, so that the locking effect is ensured when the movable bottom plate is supported in the later stage.

Furthermore, the inclined plane of the stressed conical block corresponds to the inclined plane of the lifting conical block, and the inclined plane of the stressed conical block is matched with the inclined plane of the lifting conical block through the transverse extrusion of the external movable bottom plate on the pre-tightening block, so that the stressed conical block can be lifted upwards.

Furthermore, the cross section of the movable bottom plate is L-shaped, an opening for installing the converter base is formed in the pressing plate, and the converter base can be limited and fixed through the matching of the movable bottom plate and the pressing plate.

The invention has the beneficial effects that: according to the invention, when the converter base and the half-moon sliding block are used for extrusion, the force application ball is promoted to provide elastic support for the conical block, so that each converter can be elastically lifted to a certain height, and then when the heat dissipation plate is installed, the bottom surface of the heat dissipation plate can be tightly attached to the top surface of the converter, so that the attaching effect and the subsequent heat dissipation effect are ensured.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the description of the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.

Fig. 1 is a schematic structural view of a protection mechanism of an embodiment of an inverter case of the present invention;

FIG. 2 is a schematic diagram of a converter base of an embodiment of an inverter housing of the present invention;

fig. 3 is a schematic structural diagram of a converter base and a movable base plate in a matching relationship according to an embodiment of the inverter housing of the invention;

FIG. 4 is a schematic view of a platen configuration of an embodiment of an inverter housing of the present invention;

fig. 5 is a schematic view of a clamping seat structure of an embodiment of an inverter casing of the invention;

FIG. 6 is a schematic view of a half-moon slider configuration of an embodiment of an inverter housing of the present invention;

FIG. 7 is a schematic view of a tapered block configuration of an embodiment of an inverter housing of the present invention;

FIG. 8 is a schematic structural diagram of a fitting relationship between a conical block and a force application ball of an embodiment of an inverter housing according to the present invention;

fig. 9 is a schematic structural view of a fixing mechanism of an embodiment of an inverter case of the present invention.

In the figure: 1. a protection mechanism; 2. an adjustment mechanism; 3. a fixing mechanism; 11. a heat dissipation plate; 12. an outer housing; 13. a current transformer; 14. a converter base; 21. fixing a bottom plate; 22. a movable base plate; 23. pressing a plate; 24. a half-moon slider; 25. a rotating shaft; 26. a conical block; 27. a force application ball; 28. a force application spring; 31. a bidirectional screw rod; 32. a clamping seat; 33. a support block; 34. a pre-tightening block; 35. a stressed cone block; 36. and lifting the conical block.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be obtained by a person skilled in the art without making any creative effort based on the embodiments in the present invention, belong to the protection scope of the present invention.

The embodiment of the inverter shell comprises a protection mechanism 1 for protecting internal components, an adjusting mechanism 2 for fixing the internal components by matching with the protection mechanism 1 and a fixing mechanism 3 for locking the adjusting mechanism 2, wherein a plurality of converters 13 are uniformly arranged in the protection mechanism 1, the converters 13 are arranged on a converter base 14, the bottom of the converter base 14 is connected with an outer shell 12 through the adjusting mechanism 2, and the fixing mechanism 3 is arranged on the side surface of the adjusting mechanism 2, as shown in fig. 1 to 9;

the adjusting mechanism 2 comprises a fixed bottom plate 21 and a movable bottom plate 22, wherein the movable bottom plate 22 is arranged on the upper side of the fixed bottom plate 21, a pressing plate 23 is formed at the upper end of the movable bottom plate 22, the two movable bottom plates 22 are symmetrically arranged at two ends of a converter base 14, a limiting groove matched with the converter base 14 is formed at one side of the movable bottom plate 22 corresponding to the converter base 14, two half-moon sliders 24 are arranged in the limiting groove, the lower end of each half-moon slider 24 is connected with a rotating shaft 25, the half-moon sliders 24 and the rotating shafts 25 are rotatably connected in the groove of the movable bottom plate 22, the lower end of each rotating shaft 25 penetrates through the movable bottom plate 22, a conical block 26 is connected at the bottom of each rotating shaft 25, an opening is formed in each conical block 26, a force application ball 27 corresponds to an opening at the initial position of each conical block 26, the force application ball 27 is slidably connected to the inner side of the fixed bottom plate 21, a groove for accommodating the force application ball 27 is formed at the inner side of the fixed bottom plate 21, and a force application spring 28 is arranged in the groove;

fixing mechanism 3 is including pressing from both sides tight seat 32, it is provided with tight seat 32 to lie in the activity bottom plate 22 outside on PMKD 21, the shaping has the groove of accomodating tight seat 32 on the PMKD 21, press from both sides tight seat 32 sliding connection at PMKD 21's inslot, it has two-way lead screw 31 to press from both sides through connection on the tight seat 32, it has supporting shoe 33 to press from both sides equal shaping in the tight seat 32 upper end, it is slotted to correspond the shaping of activity bottom plate 22 side on the supporting shoe 33, and install promotion awl piece 36 in the inslot, it is the inclined plane to promote 36 lateral surfaces of awl piece, cooperation atress awl piece 35 on the inclined plane, atress awl piece 35 sliding connection is in the inslot of supporting shoe 33, atress awl piece 35 corresponds activity bottom plate 22 one end and installs pretension piece 34.

Further, as shown in fig. 1, a plurality of sets of fixing base plates 21 are connected to the inner side of the outer shell 12 by welding, a heat sink 11 is installed at the upper end of the outer shell 12, and the heat sink 11 is used for closely adhering to the top surface of the lower converter 13, thereby dissipating heat of the converter 13.

Further, as shown in fig. 4, the rotating shaft 25 is fixedly connected with the semilunar slider 24 and the conical block 26, a circular groove is formed in the position of the movable bottom plate 22 corresponding to the semilunar slider 24, the semilunar slider 24 is limited by the circular groove, and can rotate along the situation when being extruded by the end face of the converter base 14 in the sliding process, so that the rotating shaft 25 and the conical block 26 at the lower end are driven to rotate, and one side of the plane of the semilunar slider 24 is positioned at the same side as the opening direction of the conical block 26.

Further, as shown in fig. 8, the tapered block 26 is rotatably connected to the fixing base plate 21, a groove for restricting the rise and fall of the tapered block 26 is formed in the fixing base plate 21, the tapered block 26 can move up and down by the restriction of the fixing base plate 21, and the side surface is supported by the urging ball 27.

Furthermore, the pretensioning block 34 is provided with a pattern corresponding to one side of the movable bottom plate 22, and the friction force between the pretensioning block 34 and the movable bottom plate 22 is increased through the pattern, so that the locking effect is ensured when the support is carried out at the later stage.

Further, as shown in fig. 9, the inclined surface of the stressed conical block 35 corresponds to the inclined surface of the lifting conical block 36, and the inclined surface of the stressed conical block 35 is matched with the inclined surface of the lifting conical block 36 by transversely pressing the pre-tightening block 34 by the external movable bottom plate 22, so that the stressed conical block 35 can be lifted upwards.

Further, as shown in fig. 4, the section of the movable bottom plate 22 is L-shaped, an opening for installing the converter base 14 is formed on the pressing plate 23, and the converter base 14 can be limited and fixed by the cooperation of the movable bottom plate 22 and the pressing plate 23.

In summary, in the initial position, the plane of the meniscus slider 24 faces the groove of the movable bottom plate 22 as shown in fig. 4, the opening of the conical block 26 connected to the lower end of the meniscus slider 24 through the rotating shaft 25 faces the same direction as the plane of the meniscus slider 24, the force applying ball 27 is placed in the opening of the conical block 26, the force applying ball 27 and the conical block 26 are not in contact, when the inverter 13 needs to be installed, the inverter base 14 at the lower end of the inverter 13 is abutted against the inner side of the movable bottom plate 22 through the opening of the pressing plate 23, and further the inverter 13 is pushed to slide inwards, while sliding, the inverter base 14 is abutted against the meniscus slider 24, the meniscus slider 24 rotates relatively, and while the meniscus slider 24 rotates, the meniscus slider 24 drives the rotating shaft 25 and the conical block 26 at the bottom to rotate, the side surface of the opening of the conical block 26 is abutted against the force applying ball 27, the force application spring 28 at one end of the force application ball 27 supports the force application ball 27 and the conical block 26, the conical block 26 is driven to lift up, the rotating shaft 25 above the conical block 26 and the semilunar slider 24 are lifted up together, as shown in fig. 9, the semilunar slider 24 lifts up the movable bottom plate 22 at the moment, the bottom of the movable bottom plate 22 is separated from the top of the fixed bottom plate 21, the movable bottom plate 22 drives the converter 13 to integrally lift up to a certain height, elastic matching between the conical block 26 and the force application ball 27 is obtained, a plurality of subsequent converters 13 are installed by the method, after the converter 13 is installed, the heat dissipation plate 11 is covered at the upper end of the outer shell 12 and the converter 13, the top of the converter 13 is jointed with the bottom of the heat dissipation plate 11, after the heat dissipation plate 11 is fixed by bolts, the inner converter 13 is completely jointed with the bottom of the heat dissipation plate 11, at the moment, the bidirectional lead screw 31 is driven by a wrench to be matched with the clamping seat 32, the clamping seats 32 at two ends are matched with the bidirectional screw rod 31 to slide inwards, meanwhile, the clamping seats 32 drive the supporting blocks 33 and the pre-tightening blocks 34 to slide towards one side of the movable bottom plate 22, transverse extrusion is conducted on the pre-tightening blocks 34 through the external movable bottom plate 22, the inclined planes of the stress conical blocks 35 are matched with the inclined planes of the lifting conical blocks 36, the stress conical blocks 35 are enabled to be lifted upwards, then the pre-tightening blocks 34 are lifted by the stress conical blocks 35, the movable bottom plate 22 and the converter 13 are driven to move upwards for a part of distance, tight matching of the top surface of the converter 13 and the bottom surface of the heat dissipation plate 11 is guaranteed, and the heat dissipation effect of the heat dissipation plate 11 on the converter 13 is improved while the fixing effect of the converter 13 is guaranteed.

The present invention is not limited to the above preferred embodiments, and any modifications, equivalent substitutions, improvements, etc. within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. An inverter case includes a protection mechanism (1) for protecting internal components, characterized in that: the protection device is characterized by further comprising an adjusting mechanism (2) used for being matched with the protection mechanism (1) to fix internal components and a fixing mechanism (3) used for locking the adjusting mechanism (2), wherein a plurality of current transformers (13) are uniformly arranged in the protection mechanism (1), the current transformers (13) are installed on a current transformer base (14), the bottom of the current transformer base (14) is connected with an outer shell (12) through the adjusting mechanism (2), and the fixing mechanism (3) is installed on the side face of the adjusting mechanism (2);

the adjusting mechanism (2) comprises a fixed bottom plate (21) and a movable bottom plate (22), wherein the movable bottom plate (22) is arranged on the upper side of the fixed bottom plate (21), a pressing plate (23) is formed at the upper end of the movable bottom plate (22), the two movable bottom plates (22) are symmetrically installed at two ends of the converter base (14), the movable bottom plate (22) corresponds to a limiting groove formed in one side of the converter base (14) and matched with the converter base (14), two half-moon sliding blocks (24) are installed in the limiting groove, a rotating shaft (25) is connected to the lower ends of the half-moon sliding blocks (24), the rotating shaft (25) is rotatably connected to the groove of the movable bottom plate (22), the lower end of the rotating shaft (25) penetrates through the movable bottom plate (22), a conical block (26) is connected to the bottom of the rotating shaft (25), an opening is formed in the conical block (26), an initial position opening of the conical block (26) is provided with a force application ball (27), the force application ball (27) is slidably connected to the inner side of the fixed bottom plate (21), a force application groove formed in the inner side of the fixed bottom plate (21) and a force application spring (28) is installed in the force application groove (27);

fixed establishment (3) are including pressing from both sides tight seat (32), be located on PMKD (21) activity bottom plate (22) outside is provided with and presss from both sides tight seat (32), the shaping has to accomodate on PMKD (21) press from both sides the groove of tight seat (32), press from both sides tight seat (32) sliding connection in the inslot of PMKD (21), it has two-way lead screw (31) to press from both sides to pass through to be connected with on the tight seat (32), press from both sides tight seat (32) upper end both sides and all form and have supporting shoe (33), correspond activity bottom plate (22) side shaping on supporting shoe (33) slottedly, and install promotion conical block (36) in the inslot, promote conical block (36) lateral surface and be the inclined plane, cooperate atress conical block (35) on the inclined plane, atress conical block (35) sliding connection in the inslot of supporting shoe (33), atress conical block (35) correspond activity bottom plate (22) one end is installed and is in advance tight block (34).

2. An inverter case according to claim 1, characterized in that: the fixed base plates (21) are connected to the inner side of the outer shell (12) through welding, and the upper end of the outer shell (12) is provided with a heat dissipation plate (11).

3. An inverter case according to claim 1, characterized in that: the rotating shaft (25) is fixedly connected with the semilunar slider (24) and the conical block (26), and a circular groove is formed in the position, corresponding to the semilunar slider (24), of the movable bottom plate (22).

4. An inverter case according to claim 1, characterized in that: the conical block (26) is rotatably connected with the fixed bottom plate (21), and a groove for limiting the lifting of the conical block (26) is formed in the fixed bottom plate (21).

5. An inverter case according to claim 1, wherein: patterns are formed on one side of the pre-tightening block (34) corresponding to the movable bottom plate (22).

6. An inverter case according to claim 1, wherein: the inclined plane of the stress cone block (35) corresponds to the inclined plane of the lifting cone block (36).

7. An inverter case according to claim 1, wherein: the cross section of the movable bottom plate (22) is L-shaped, and an opening for installing the converter base (14) is formed in the pressing plate (23).