CN204186602U - Miniature brushless dc centrifugal water pump - Google Patents
Miniature brushless dc centrifugal water pump Download PDFInfo
- Publication number
- CN204186602U CN204186602U CN201420512096.5U CN201420512096U CN204186602U CN 204186602 U CN204186602 U CN 204186602U CN 201420512096 U CN201420512096 U CN 201420512096U CN 204186602 U CN204186602 U CN 204186602U
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Abstract
The utility model discloses a kind of Miniature brushless dc centrifugal water pump, comprise casing, stator, rotor, impeller, the two ends of this casing have water intake and water outlet respectively, both entery and delivery ports are communicated with the flow channel of formation, one magnet rotor that can be rotated by water impact is installed in flow channel, other in the side of this magnet rotor have Hall element and control circuit board, both this magnet rotor and Hall element form water velocity inductor, and this water velocity inductor and control circuit board form the control switch that water pump automatically opens/stops; By this, only need the water valve opening water pipe, detect hydraulic pressure size by water velocity inductor, coordinate control circuit board to realize water pump automatically to open/stop, open/guard's valve without the need to arranging mechanical type on water pump, without the need to manual operation, water pumps water is more intelligent, use more convenient, to solar water heater, high building water heater, building water supply, Rural water supply hydraulic pressure is too low, plays increase hydraulic pressure, improves service position.
Description
Technical field
The utility model relates to water pump art, refers in particular to a kind of Miniature brushless dc centrifugal water pump, and to solar water heater, high building water heater, building water supply, Rural water supply hydraulic pressure is too low, plays increase hydraulic pressure, improves service position.
Background technique
Water pump is when drawing water, water level in pond can slowly reduce, when the working water level of water level lower than water pump, water pump is easily caused to dally, at this moment, the impeller of water pump, rotor and bearing etc. can not get the heat radiation of water, if motor continues to run up, then easily cause water pump frictional heating and damage motor.In order to prevent pump motor from dallying, the use of protection motor, generally all can be provided with the control gear controlling pump motor stall on water pump.
Traditional control device for water pump electric machine mostly is switch, the keying of control switch is carried out by buoyancy of water, when water level completely arrives certain high water level, switch upwards floats under buoyancy of water effect, the steel ball of the inside, automatically declines and leaves sensitive switch, now sensitive switch, automatically open, water pump is started working; When water level decreasing is to certain low water level, switch is automatically sagging under the Action of Gravity Field of self, the steel ball of the inside, and automatically declining compresses sensitive switch, and now sensitive switch cuts out automatically, and water pump quits work.
And for example the patent No. is that the Chinese model utility " a kind of floating ball water pump level controller " of ZL200420110435.3 also discloses a kind of floating ball water pump level controller, comprise switch, ball float, its breaker in middle is located in airtight ball float, the electric wire be connected with switch is drawn from ball float, be shaped with slot rolling in ball float inner chamber, the button of switch is located at one end of slot rolling, is placed with spin in slot rolling, be shaped with limit ribs in slot rolling, adopt two head breadths, middle narrow gourd shape.Fixed by electric wire during use, ball float bubbles through the water column, when water level rises or declines, when ball float tilts to reach several angle, rolling ball rolls, touch switch realizes controlling.
But, the machine switch of above-mentioned conventional construction controls pump motor stall by sensed water level, when water level one drops to the inclination water level of switch, switch be namely subject to Action of Gravity Field sagging and and then the motor switch that switches off the pump, so probably when not also being extracted into lowest water level, water pump just may quit work; Secondly; mechanical switch can only judge that the height of water level is to control the stall of water pump; in the normal situation of water level; reflection cannot be made to the abnormal operation of pump motor, not have and prevent water pump stall and the dry protective function run, affect the working life of water pump: in addition; adopt in the control circuit of mechanical switch; strong and weak electricity connects together, and do not have Anti-interference Design, cannot improve the safety in utilization of electric equipment.
Model utility content
In view of this, the utility model is for the disappearance of prior art existence, its main purpose is to provide a kind of Miniature brushless dc centrifugal water pump, is installed on water pipe, only needs the water valve opening water pipe, hydraulic pressure size is detected by the water velocity inductor of magnet rotor and Hall element composition, coordinating control circuit board to realize water pump automatically to open/stop, opening/guard's valve, without the need to manual operation without the need to arranging mechanical type on water pump, water pumps water is more intelligent, uses more convenient.
For achieving the above object, the utility model adopts following technological scheme:
A kind of Miniature brushless dc centrifugal water pump, comprise casing, the stators and rotators be installed in casing, be connected on the impeller of rotor, the two ends of this casing have water intake and water outlet respectively, and described water intake forms flow channel with being communicated with between water outlet;
Upper press cover and lower cover are set in flow channel, enclose between this upper press cover and lower cover and formed water cavity, this is crossed water cavity and communicates with flow channel, in crossing in water cavity, a magnet rotor that can be rotated by water impact is installed, other in the side of this magnet rotor have Hall element and control circuit board, both this magnet rotor and Hall element form water velocity inductor, and this water velocity inductor and control circuit board form the control switch that water pump automatically opens/stops.
As the preferred scheme of one, described upper press cover has erection column on, and upper erection column center has a upper shaft hole to form Upper shaft sleeve; This lower cover has erection column, and lower erection column center has a lower shaft hole to form Lower shaft sleeve; Be an axle in the middle of described magnet rotor, axle external radiation goes out several pieces blades that can be rotated by water impact, and two of the axle of magnet rotor is connected with upper and lower axle sleeve respectively, has a roll piece in axle sleeve respectively, and the axial plane of magnet rotor and roll piece form point cantact.
As the preferred scheme of one, described roll piece is circle ball, or conical porcelain knob, the axle of the taper-face contact magnet rotor of conical porcelain knob.
As the preferred scheme of one, described Hall element and control circuit board are imbedded on the side wall surface of upper press cover or lower cover, with upper press cover or lower cover one produced by insert molding.
As the preferred scheme of one, the described caping that presses down extends a projection along one, the sidewall of the upper press cover of correspondence is provided with one and dodges groove, this projection and this dodge groove fit and assemble, and described Hall element and control circuit board be embedded in this projection inside not with extraneous contact, the height of Hall element and the blade of magnet rotor are with high.
As the preferred scheme of one, described upper press cover and lower cover are installed on inside water outlet, this lower cover has an end basin and and upwards extends storage water basin from the central integral of end basin, there is polywater hole at the center of this end basin, polywater hole is just to the inner chamber of storage water basin, and the inner chamber in storage water basin arranges several pieces ater guide pieces be obliquely installed, the inner chamber of storage water basin is separated into the water channel that multiple tracks tilts by this ater guide piece, and the water outlet of this inclination water channel just crosses water cavity to described.
As the preferred scheme of one, be equipped with multiple hole for water spraying beyond the center of basin of the described end, offer multiple through hole in the joint of this storage water basin and end basin, this hole for water spraying is communicated with through hole by end basin surface, and through hole is communicated with inclination water channel.
As the preferred scheme of one, described casing comprises the upper shell of separable assembled, main casing and lower shell body, installs water outlet end cap, be wholely set and have externally threaded water outlet in water outlet end cap in this upper shell; Install intake end cover in this lower shell body, in this intake end cover, spiral shell is provided with a copper water intake, and establishes reinforcing cover in the outer spiral shell of water intake.
As the preferred scheme of one, the main casing of described casing is separated into stator cavity, rotor chamber and current chamber by isolating plate; This stator cavity has upper side opening, and described stator is assembled in stator cavity by upper side opening; The open lower side of this rotor chamber, described rotor is assembled in rotor chamber by open lower side, and rotor has rotating shaft to stretch out rotor chamber lower end connection impeller, and impeller is just to water intake; This current chamber is formed between rotor chamber periphery and main casing internal face, and communicates up and down.
As the preferred scheme of one; built-in automatic start-stop control circuit and protective circuit in described control circuit board, this protective circuit comprises overvoltage crowbar, under-voltage protecting circuit, over-current protection circuit, overload protecting circuit, Lock protective circuit, idle running protective circuit, reverse connection prevention protection circuit.
The utility model compared with prior art has obvious advantage and beneficial effect, specifically, as shown from the above technical solution, by installing magnet rotor in the flow channel in the pump housing, and arranges Hall element in side, side, current flow and drive this magnet rotor to rotate in the pump housing, Hall element is made to produce pulse signal, pass through when there is no current or hydraulic pressure is not enough time, Hall element can not produce pulse signal, whether control circuit board is by producing pulse signal and judge whether enough hydraulic pressure, when the pulse signal detected in the stipulated time reaches setting value, then automatically start water pump, otherwise do not start water pump or the water pump in running is shut down, / guard's valve is opened without the need to arranging mechanical type on water pump, without the need to manual operation, thus water pumps water is more intelligent, use more convenient, to solar water heater, high building water heater, building water supply, Rural water supply hydraulic pressure is too low, play increase hydraulic pressure, improve service position.
For more clearly setting forth structure characteristic of the present utility model and effect, below in conjunction with accompanying drawing and specific embodiment, the utility model is described in detail.
Accompanying drawing explanation
Fig. 1 is the assembling schematic perspective view of the embodiment of the utility model;
Fig. 2 is the sectional drawing of the embodiment of the utility model;
Fig. 3 is the exploded view of the embodiment of the utility model;
Fig. 4 is the decomposing state sectional drawing of the embodiment of the utility model;
Fig. 5 is the schematic diagram that the magnet rotor of the embodiment of the utility model is assembled in water outlet inside;
Fig. 6 is the partial enlarged drawing of Fig. 5;
Fig. 7 is the sectional view of the magnet rotor assembled state of the embodiment of the utility model;
Fig. 8 is the schematic diagram that the magnet rotor of the embodiment of the utility model coordinates with roll piece (conical porcelain knob);
Fig. 9 is the schematic diagram that the magnet rotor of the embodiment of the utility model coordinates with roll piece (circle ball);
Figure 10 A is visual angle, the top figure of the lower cover of the embodiment of the utility model;
Figure 10 B is the bottom views figure of the lower cover of the embodiment of the utility model;
Figure 10 C is the sectional view of the lower cover of the embodiment of the utility model;
Figure 11 A is visual angle, the top figure of the upper press cover of the embodiment of the utility model;
Figure 11 B is the bottom views figure of the upper press cover of the embodiment of the utility model;
Figure 11 C is the sectional view of the upper press cover of the embodiment of the utility model;
Figure 12 A is visual angle, the top figure of the main casing of the embodiment of the utility model;
Figure 12 B is the sectional view of the main casing of the embodiment of the utility model.
Accompanying drawing identifier declaration:
10, casing 11, lower shell body
12, main casing 121, stator cavity
122, rotor chamber 123, current chamber
13, upper shell 14, intake end cover
15, water intake 16, reinforcing cover
17, water outlet end cap 18, water outlet
20, stator 30, rotor
40, impeller 50, magnet rotor
51, axle 52, the blade of magnet rotor
53, roll piece 60, Hall element
70, control circuit board 80, upper press cover
81, upper erection column 811, upper shaft hole
82, groove 90, lower cover is dodged
91, end basin 911, polywater hole
912, hole for water spraying 92, storage water basin
921, ater guide piece 922, through hole
93, lower erection column 931, lower shaft hole
94, projection.
Embodiment
Please refer to shown in Fig. 1 to Fig. 4, that show the concrete structure of the preferred embodiment of the utility model, it is a kind of Miniature brushless dc centrifugal water pump, for being arranged on water pipe, such as, the large sun of ordinary family can water tank may can not automatic loading water because hydraulic pressure is not enough, thus need that water pump is installed and draw water.Miniature brushless dc centrifugal water pump of the present utility model can realize automatic start-stop according to the size of hydraulic pressure; only need the water valve opening water pipe; when detecting that the water velocity flowing through water pump meets setting value, water pump starts automatically, on the contrary autostop or do not start.Therefore opening/guard's valve without the need to joining mechanical type on water pump, without the need to manual control water pump, realizing the intelligentized control method of pumping for water pump, bring convenience to people's life.
Miniature brushless dc centrifugal water technical data required for the pump of the present utility model is as follows:
1. voltage rating: DC 27V;
2. motor type: brushless direct current motor/three-phase DC motor;
3. rated head/rated flow: during discharge pressure 0.07MPa, flow is not less than 11.5L/min; Maximum discharge pressure is for can not be bigger than 0.2MPa;
4. maximum noise: run (testing instrument is far away apart from 1 meter, water pump) < 45dB under normal working continuously;
5. voltage endurance capability: 0.7Mpa;
6. working life: life-span >=10000h, operation >=12h continuously under rated condition;
7. classification of waterproof: IP68.
It should be noted that, above-mentioned parameter is the numerical value that the utility model obtains according to the product of actual production, but water pump can be transformed according to different demands, to meet different need of productions.
Miniature brushless dc centrifugal water pump structure of the present utility model comprises casing 10, the stator 20 be arranged in casing 10, rotor 30, impeller 40, magnet rotor 50, Hall element 60 and control circuit board 70, both this magnet rotor 50 and Hall element 60 form water velocity inductor, and this water velocity inductor and control circuit board 70 form the control switch that water pump automatically opens/stops.
Wherein, as shown in Figures 2 to 4, described water pump is cylindrical.Casing 10 structure comprises the lower shell body 11 of separable assembled, main casing 12 and upper shell 13, lower shell body 11, between main casing 12 and upper shell 13 three preferably with being spirally connected, can fast assembling-disassembling, and be convenient to subsequent maintenance.
Install intake end cover 14 in this lower shell body 11, this intake end cover 14 adopts PPT material to make, and in this intake end cover 14, spiral shell is provided with a copper water intake 15, and establishes reinforcing cover 16 in the outer spiral shell of water intake 15.In this example, this water intake 15 is 4 points of copper slip-knot structures of standard internal thread, and certain water intake 15 size also can be customized on demand.
In this upper shell 13, water outlet end cap 17 is installed, is wholely set in water outlet end cap 17 and there is externally threaded water outlet 18.Water outlet end cap 17, in funnel-like, is make with copper material or aluminum alloy material.In this example, this water outlet 18 is 4 points of standard external fiber tube screw threads, and the size of certain water outlet 18 also can be customized on demand.
As shown in Figure 12 A, Figure 12 B, this main casing 12 is separated into stator cavity 121, rotor chamber 122 and current chamber 123 by isolating plate.
As shown in Figure 3 and Figure 4, the open lower side of this rotor chamber 122, rotor 30 is assembled in rotor chamber 122 by open lower side, and rotor 30 has rotating shaft to stretch out rotor chamber 122 lower end connection impeller 40, and impeller 40 is just shown in Fig. 2 to water intake 15().In the present embodiment, the rotating shaft of rotor 30 is preferably zirconium oxide material, very hard wear resistant; Impeller 40 is preferably POM material.
As shown in Figure 3 and Figure 4, this stator cavity 121 has upper side opening, and this stator 20 is assembled in rotor chamber 122 by upper side opening; Stator 20 Parylene used for packing material, plastic cement, make the upper side opening sealing of stator 20, prevent into water; After encapsulation, the whole motor formed by stator 20, rotor 30 and main casing 12 requires withstand long term exposure Wen Du≤70 DEG C, and short-term tolerance temperature 110 DEG C, can indeformable normal work more than 30 minutes.
See Figure 12 A, Figure 12 B, this current chamber 123 is formed at rotor chamber 122 periphery, it is the throat with being isolated between dividing plate and main casing 12 internal face, and current chamber about 123 communicates, thus when drawing water, the direction of current flows to form flow channel (see figure 2) along water intake 15 → current chamber 123 → water outlet 18.
As shown in Figures 2 to 4, arrange upper press cover 80 and lower cover 90 in described flow channel, enclose between this upper press cover 80 and lower cover 90 and formed water cavity, this is crossed water cavity and communicates with flow channel.Described magnet rotor 50 was installed in water cavity, and it can be rotated by water impact (see Fig. 5 and Fig. 6).Described Hall element 60 is positioned at by the side of magnet rotor 50, makes Hall element 60 enough near with the magnetic force line cutting of induced magnetism rotor 50, thus both magnet rotor 50 and Hall element 60 form water velocity inductor (see figure 7).In the present embodiment, control circuit board 70 is imbedded on the side wall surface of upper press cover 80 or lower cover 90 together with Hall element 60, with upper press cover 80 or lower cover 90 one produced by insert molding.By this, Hall element 60 and control circuit board 70 are encapsulated in the parts of water pump inside; but be not encapsulated in away water section, not with extraneous contact, thus can water proof (classification of waterproof reaches IP67) completely; available protecting electronic parts and components are not subject to corrosion and damage, long service life.
As shown in Figure 7, in the present embodiment, described upper press cover 80 and lower cover 90 are installed on inside water outlet 18.See Figure 10 A-C, this lower cover 90 has an end basin 91 and and upwards extends storage water basin 92 from the central integral of end basin 91, and there is polywater hole 911 at the center of this end basin 91, and this polywater hole 911 is just to the inner chamber of storage water basin.Further, the inner chamber in storage water basin 92 arranges several pieces ater guide pieces 921 be obliquely installed, and the inner chamber of storage water basin 92 is separated into multiple tracks inclination water channel by this ater guide piece 921; Described water cavity of crossing is just to this inclination water channel.In addition, be equipped with multiple hole for water spraying 912 beyond the center of basin of the described end 91, offer multiple through hole 922 in this storage water basin 92 with the joint of end basin 91, this hole for water spraying 912 is communicated with through hole 922 by end basin 91 surface, and through hole 922 is communicated with inclination water channel.Like this, after current flow out from current chamber 123, all import storage water basin 92 from the polywater hole 911 of inside and the hole for water spraying 912 of outside, add and current can be made toward upper punch by the design of inclination water channel, the angle of current upper punch is beaten just on the blade 52 of magnet rotor 50, to guarantee that less hydraulic pressure also can form the current of certain speed, more easily impact magnet rotor 50 and more easily rotate.
Shown in composition graphs 5 to Figure 11 A, Figure 11 B, Figure 11 C, the mounting structure of described magnet rotor 50, upper press cover 80 and lower cover 90 specifically: this upper press cover 80 has erection column 81 on, and upper erection column 81 center has a upper shaft hole 811 to form Upper shaft sleeve.This lower cover 90 has erection column 93, and lower erection column 93 center has a lower shaft hole 931 to form Lower shaft sleeve.Described magnet rotor 50 adopts neodymium boron material, an axle 51 in the middle of this magnet rotor 50, axle 51 external radiation goes out several pieces blades 52 that can be rotated by water impact, two of the axle 51 of magnet rotor is connected with upper and lower axle sleeve respectively, have a roll piece 53 in axle sleeve respectively, axial plane and the roll piece 53 of magnet rotor form point cantact.In the present embodiment, described roll piece 53 can be round steel pearl, or conical porcelain knob, the axle 51 of the taper-face contact magnet rotor of conical porcelain knob, object is to reduce magnet rotor 50 and roll piece 53(round steel pearl or circular cone post) friction, make magnet rotor in the effect by very little current hydraulic pressure, magnet rotor can be turned over normally.
As shown in Fig. 7, Figure 10 A, Figure 10 B, Figure 10 C, in the present embodiment, described Hall element 60, control circuit board 70 are packaged in lower cover 90.Specifically, the storage water basin 92 of described lower cover 90 pushes up and extends a projection 94 along one, the sidewall of the upper press cover 80 of correspondence is provided with one and dodges groove 82(and see Figure 11 A, Figure 11 B, Figure 11 C), this projection 94 is dodged groove 82 with this and is coordinated and assemble, and described Hall element 60 and control circuit board 70 imbed this projection 94 inside, make the height of Hall element 60 and the blade 52 of magnet rotor 50 with high, with the rotation of induced magnetism rotor 50.During production, Hall element 60, control circuit board 70 are inserted in mould and are located, then by mould-injection and lower cover 90 one-body molded, guarantee the water-proof performance of Hall element 60 and control circuit board 70, can not be corroded, oxidation etc.; And by this integrated mode, without the need to assembling, without the need to worrying that Hall element 60 and control circuit board 70 produce because assembling built on the sand quality problems such as loosening.
Built-in automatic start-stop control circuit and protective circuit in described control circuit board 70, to realize automatic start-stop, the protective function of water pump.Specifically, this protective circuit comprises overvoltage crowbar, under-voltage protecting circuit, over-current protection circuit, overload protecting circuit, Lock protective circuit, idle running protective circuit, reverse connection prevention protection circuit.In the present embodiment, under-voltage protecting circuit realizes, lower than DC 20V, starting under-voltage protection function higher than during DC 30V.Over-current protection circuit realizes starting overcurrent protection function at electric current higher than during 5V.Reverse connection prevention protection circuit is arranged on the input end of control circuit board 70, when both positive and negative polarity reversal connection, without input, and water air pump inoperative.
This water velocity inductor (magnet rotor 50+ Hall element 60) and control circuit board 70 form the control switch that water pump automatically opens/stops, it opens automatically/stop control method specifically: when connecing power supply opening water tap, after control circuit board 70 receives the first pulse signal, starting mode of pump work runs 3 seconds, and it is same by the water impact magnet rotor 50 flowing through water pump inside, if when water velocity is enough large, magnet rotor 50 rotates, and rotational velocity is very fast, otherwise do not turn or rotational velocity excessively slow.The water velocity sensor on water stream (or hydraulic pressure) utilizing magnet rotor 50 and Hall element 60 to form detects, if when detection action pulse signal is less than 5/MIN, control circuit board 70 controls water pump to be stopped; Again start pump working 3 seconds after stopping 5 seconds and detect action pulse signal (identical with the first step) and detect, if can't normally work for continuous 3 times altogether; Water pump enters off-mode.After this water pump power-off after reset power, again could enter work is again only had; Or detect holding state (when current are greater than 4 L/min, or water lift >=1M starts water pump, and current are less than 2 L/min and switch off the pump).
In sum, design focal point of the present utility model is, by installing magnet rotor 50 in the flow channel in the pump housing, and arranges Hall element 60 in side, side, current flow and drive this magnet rotor 50 to rotate in the pump housing, Hall element 60 is made to produce pulse signal, pass through when there is no current or hydraulic pressure is not enough time, Hall element 60 can not produce pulse signal, whether control circuit board 70 is by producing pulse signal and judge whether enough hydraulic pressure, when the pulse signal detected in the stipulated time reaches setting value, then automatically start water pump, otherwise do not start water pump or the water pump in running is shut down, / guard's valve is opened without the need to arranging mechanical type on water pump, without the need to manual operation, thus water pumps water is more intelligent, use more convenient, to solar water heater, high building water heater, building water supply, Rural water supply hydraulic pressure is too low, play increase hydraulic pressure, improve service position.
The above, it is only preferred embodiment of the present utility model, not technical scope of the present utility model is imposed any restrictions, therefore every above embodiment is done according to technical spirit of the present utility model any trickle amendment, equivalent variations and modification, all still belong in the scope of technical solutions of the utility model.
Claims (10)
1. a Miniature brushless dc centrifugal water pump, comprise casing, the stators and rotators be installed in casing, be connected on the impeller of rotor, the two ends of this casing have water intake and water outlet respectively, and described water intake forms flow channel with being communicated with between water outlet; It is characterized in that:
Upper press cover and lower cover are set in flow channel, enclose between this upper press cover and lower cover and formed water cavity, this is crossed water cavity and communicates with flow channel, in crossing in water cavity, a magnet rotor that can be rotated by water impact is installed, other in the side of this magnet rotor have Hall element and control circuit board, both this magnet rotor and Hall element form water velocity inductor, and this water velocity inductor and control circuit board form the control switch that water pump automatically opens/stops.
2. Miniature brushless dc centrifugal water pump according to claim 1, is characterized in that: described upper press cover has erection column on, and upper erection column center has a upper shaft hole to form Upper shaft sleeve; This lower cover has erection column, and lower erection column center has a lower shaft hole to form Lower shaft sleeve; Be an axle in the middle of described magnet rotor, axle external radiation goes out several pieces blades that can be rotated by water impact, and two of the axle of magnet rotor is connected with upper and lower axle sleeve respectively, has a roll piece in axle sleeve respectively, and the axial plane of magnet rotor and roll piece form point cantact.
3. Miniature brushless dc centrifugal water pump according to claim 2, is characterized in that: described roll piece is circle ball, or conical porcelain knob, the axle of the taper-face contact magnet rotor of conical porcelain knob.
4. Miniature brushless dc centrifugal water pump according to claim 2, is characterized in that: described Hall element and control circuit board are imbedded on the side wall surface of upper press cover or lower cover, with upper press cover or lower cover one produced by insert molding.
5. Miniature brushless dc centrifugal water pump according to claim 4, it is characterized in that: described in press down caping along one extend a projection, the sidewall of the upper press cover of correspondence is provided with one and dodges groove, this projection and this dodge groove fit and assemble, and described Hall element and control circuit board be embedded in this projection inside not with extraneous contact, the height of Hall element and the blade of magnet rotor are with high.
6. Miniature brushless dc centrifugal water pump according to claim 1, it is characterized in that: described upper press cover and lower cover are installed on inside water outlet, this lower cover has an end basin and and upwards extends storage water basin from the central integral of end basin, there is polywater hole at the center of this end basin, polywater hole is just to the inner chamber of storage water basin, and, inner chamber in storage water basin arranges several pieces ater guide pieces be obliquely installed, the inner chamber of storage water basin is separated into the water channel that multiple tracks tilts by this ater guide piece, and the water outlet of this inclination water channel just crosses water cavity to described.
7. Miniature brushless dc centrifugal water pump according to claim 6, it is characterized in that: beyond the center of basin of the described end, be equipped with multiple hole for water spraying, offer multiple through hole in the joint of this storage water basin and end basin, this hole for water spraying is communicated with through hole by end basin surface, and through hole is communicated with inclination water channel.
8. Miniature brushless dc centrifugal water pump according to claim 1, it is characterized in that: described casing comprises the upper shell of separable assembled, main casing and lower shell body, in this upper shell, water outlet end cap is installed, is wholely set in water outlet end cap and there is externally threaded water outlet; Install intake end cover in this lower shell body, in this intake end cover, spiral shell is provided with a copper water intake, and establishes reinforcing cover in the outer spiral shell of water intake.
9. Miniature brushless dc centrifugal water pump according to claim 8, is characterized in that: the main casing of described casing is separated into stator cavity, rotor chamber and current chamber by isolating plate; This stator cavity has upper side opening, and described stator is assembled in stator cavity by upper side opening; The open lower side of this rotor chamber, described rotor is assembled in rotor chamber by open lower side, and rotor has rotating shaft to stretch out rotor chamber lower end connection impeller, and impeller is just to water intake; This current chamber is formed between rotor chamber periphery and main casing internal face, and communicates up and down.
10. Miniature brushless dc centrifugal water pump according to claim 1; it is characterized in that: built-in automatic start-stop control circuit and protective circuit in described control circuit board, this protective circuit comprises overvoltage crowbar, under-voltage protecting circuit, over-current protection circuit, overload protecting circuit, Lock protective circuit, idle running protective circuit, reverse connection prevention protection circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420512096.5U CN204186602U (en) | 2014-09-05 | 2014-09-05 | Miniature brushless dc centrifugal water pump |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420512096.5U CN204186602U (en) | 2014-09-05 | 2014-09-05 | Miniature brushless dc centrifugal water pump |
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| CN204186602U true CN204186602U (en) | 2015-03-04 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201420512096.5U Expired - Lifetime CN204186602U (en) | 2014-09-05 | 2014-09-05 | Miniature brushless dc centrifugal water pump |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104235029A (en) * | 2014-09-05 | 2014-12-24 | 东莞市众隆泵业科技有限公司 | Miniature brushless direct-current centrifugal water pump |
| CN105952684A (en) * | 2016-06-17 | 2016-09-21 | 四川五洲仁信科技有限公司 | New energy automobile electronic water pump and control system and method |
| CN108832599A (en) * | 2018-06-20 | 2018-11-16 | 上海金脉电子科技有限公司 | Unicoil brushless DC motor control system and control method |
-
2014
- 2014-09-05 CN CN201420512096.5U patent/CN204186602U/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104235029A (en) * | 2014-09-05 | 2014-12-24 | 东莞市众隆泵业科技有限公司 | Miniature brushless direct-current centrifugal water pump |
| CN105952684A (en) * | 2016-06-17 | 2016-09-21 | 四川五洲仁信科技有限公司 | New energy automobile electronic water pump and control system and method |
| CN105952684B (en) * | 2016-06-17 | 2018-08-21 | 四川五洲仁信科技有限公司 | New-energy automobile electronic water pump, control system and method |
| CN108832599A (en) * | 2018-06-20 | 2018-11-16 | 上海金脉电子科技有限公司 | Unicoil brushless DC motor control system and control method |
| CN108832599B (en) * | 2018-06-20 | 2020-07-14 | 上海金脉电子科技有限公司 | Control system and control method for single-coil brushless direct current motor |
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