WO2019153562A1

WO2019153562A1 - Brushless integrated switch

Info

Publication number: WO2019153562A1
Application number: PCT/CN2018/086521
Authority: WO
Inventors: 苏康; 于盛
Original assignee: 苏州华之杰电讯股份有限公司; 张家港华捷电子有限公司
Priority date: 2018-02-11
Filing date: 2018-05-11
Publication date: 2019-08-15
Also published as: CN108198707A

Abstract

The present invention relates to a brushless integrated switch, comprising a base, a cover plate, a button, a push rod, a PCB, a direction switching unit, a speed adjustment elastic slide piece, and a main control elastic slide piece. The direction switching unit comprises a direction switching slider and a direction switching lever. A direction switching elastic slide piece is disposed at a bottom portion of the direction switching slider, and a slide slot is disposed in a side wall of the direction switching slider. Direction switching signal copper foil, speed adjustment signal copper foil, and main control signal copper foil are disposed on the PCB. The direction switching signal copper foil, the speed adjustment signal copper foil, and the main control signal copper foil respectively correspond to the direction switching elastic slide piece, the speed adjustment elastic slide piece, and the main control elastic slide piece. In the present invention, a main control circuit, a speed adjustment circuit, and a direction switching circuit are integrated on one PCB and are integrated with a mechanical signal portion of the switch, thereby reducing required assembly space, shortening a control loop, eliminating the need for circuit wiring, and reducing circuit interference. The present invention has a simple structure, and eliminates the need for a circuit board, control wiring, and wiring terminals, thereby reducing product costs.

Description

Brushless integrated switch

Technical field

The invention relates to the field of brushless switches, and in particular to a brushless integrated switch.

Background technique

The common brushless series switches on the market are simple brushless signal switches, plus a separate circuit control board, and an independent Hall version scheme, which is complicated in process and high in assembly cost.

At the same time, the existing brushless power tool circuit control is composed of a main control circuit board and a switch with a speed control circuit board and a switch with a commutation circuit board. The speed switch, the reverse switch and the main control board are independently set as different structures. The speed switch and the reverse switch are connected to the main control board through wires to provide the speed control signal and the commutation signal to the control board. This approach increases line connections, has a complex structure, and increases production costs.

Summary of the invention

In view of the problems in the prior art, the present invention provides a brushless integrated switch that integrates a circuit control system (including a main control circuit, a speed control circuit, and a commutation circuit) and a mechanical signal portion of the switch to save assembly space. The process is simple and cost-effective.

To solve the above problems, the solution of the present invention is a brushless integrated switch including a base, a cover plate, a button, a push rod, and a PCB circuit board, the base and the cover plate being fitted together, the button It is assembled with one end of the push rod, and further includes a reversing unit, a speed regulating unit, and a main control switch unit;

An accommodating cavity A for arranging the reversing unit and a accommodating cavity B for placing the push rod, the accommodating chamber is disposed in the cover plate a side portion of the cavity A is provided with a buckle portion A;

The reversing unit includes a reversing slider and a reversing lever. The bottom of one end of the reversing lever is provided with a circular shaft. The bottom of the reversing slider is provided with a reversing sliding elastic piece, and the reversing sliding is provided. a sliding groove is disposed in the side wall of the block, and an angle between a center line of the sliding groove along a longitudinal direction thereof and a bottom surface of the reversing slider is 20°-80°, and the circular shaft is inserted into the sliding groove. The reversing slider slides along the shape of the sliding slot, and the other side wall of the reversing slider is provided with a mounting fixing groove, the mounting fixing slot is disposed in a horizontal direction, and the buckle portion A is used for fixing the mounting fixing groove for allowing the reversing slider to slide only in the horizontal direction;

The speed regulating unit includes a speed-adjusting sliding elastic piece, and the speed-adjusting sliding elastic piece is disposed at a bottom of the pushing rod;

The main control switch unit includes a main control sliding elastic piece, and the main control sliding elastic piece is disposed at a bottom of the push rod;

The PCB circuit board is a double-sided circuit board, and the speed control circuit module, the main control circuit module and the commutation control circuit module are integrated into a PCB double-sided circuit board by means of PCB double-sided wiring;

The PCB circuit board is provided with a commutation signal copper foil, a speed control signal copper foil, a main control signal copper foil, a main control chip, a MOSFET tube, a positive B+ port, a negative B-port, and three phases U, V, W. a port, the commutation signal copper foil, the speed control signal copper foil, the main control signal copper foil are arranged in parallel, the commutation signal copper foil, the speed control signal copper foil and the main control signal copper foil respectively and the commutation The sliding elastic piece, the speed regulating sliding elastic piece and the main control sliding elastic piece correspond to each other.

As an improvement, the reversing signal copper foil is three copper foils, the speed control signal copper foil and the main control signal copper foil are two, and the reversing sliding elastic piece, the speed regulating sliding elastic piece and the main control sliding elastic piece are both There are two tentacles.

As a further improvement, the bottom of the reversing slider is provided with a groove, the groove is disposed with a spring, and the spring is provided with a reversing hand steel ball at an end near the bottom of the reversing slider. The bottom of the chamber A is provided with a concave-convex groove portion, the concave-convex groove portion is three concave-convex grooves arranged in parallel, and the reversing handle is provided with three positions of left, middle and right, corresponding to the three parallel arrangement a concave groove, the reversing lever is movable in three positions of left, middle and right, and the circular shaft provided on the reversing handle slides on the sliding slot to drive the reversing slider to slide, the change The reversing hand-feeling steel ball toward the bottom of the slider moves in three concave-convex grooves arranged side by side in the concave-convex groove portion.

As a further improvement, the other end of the push rod is provided with a fixing plate, and the side wall of the receiving cavity B is provided with a buckle portion B for fixing the fixing plate.

As a further improvement, the bottom of the push rod is provided with a guide rail A or a slider, and the bottom of the accommodating chamber B is provided with a guide rail B, and the guide rail A or the slider is nested in the guide rail B, the guide rail B is used for fixing the push rod to slide the push rod along the length direction of the guide rail B, the bottom of the accommodating chamber B is provided with a spring fixed, and the spring is fixedly provided with a push rod spring, the push One end of the rod spring rests on the push rod.

As a further improvement, the positive B+ port, the negative B-port, and the three-phase U, V, W ports are located outside the base and the cover.

As a further improvement, a sealing unit is further included, the sealing unit comprising a sealing ring at both ends of the PCB circuit board and a PCB sealing groove, a push rod sealing ring and a push rod sealing ring groove, a sealing opening and a sealing oil groove.

As a further improvement, a heat dissipation unit is further included, and the heat dissipation unit includes two MOSFET heat sinks, a heat dissipation sealing ring, a left jumper terminal, and a right jumper terminal.

As a further improvement, the pedestal is provided with a heat dissipation hole, and the heat dissipation sealing ring blocks the heat dissipation hole and functions as a dustproof.

As a further improvement, the left jumper terminal and the right jumper terminal are made of copper, and the heat dissipation function is good, and can withstand a large current.

As a further improvement, the angle between the center line of the sliding groove along the longitudinal direction and the bottom surface of the reversing slider is 45°.

The bottom of the reversing slider means that the side close to the base is the bottom, and the top of the reversing slider means that the side close to the cover is the top.

As can be seen from the above description, the present invention has the following advantages:

1. The brushless integrated switch of the invention realizes the forward rotation and the reverse rotation of the power tool through the left and right movement of the reversing lever of the mechanical part, and realizes the starting, closing and speed regulation of the electric tool through the pressing and releasing of the button push rod.

2. Integrate the main control circuit module, the speed control circuit module and the commutation circuit module on one circuit board, shorten the control loop, save the circuit connection, reduce the circuit interference, and also reduce the relationship between the boards. A fault caused by a flashing connection.

3. The positive B+ port, the negative B-port and the three-phase U, V, W ports are disposed outside the base and the cover, further reducing the switch volume formed by the cover and the base, and all and positive The wiring of the class B+ port, the negative B-port and the three-phase U, V, W ports are all placed outside the switch, eliminating the circuit wiring inside the switch, reducing circuit interference, and reducing the connection between the boards. A fault caused by a line flash.

4. The reversing lever and the reversing slider, the reversing hand spring, the reversing hand steel ball and the like are mounted on the cover plate, and the mounting fixing groove on the reversing slider and the buckle portion A on the cover plate are And the concave and convex slot on the cover plate, when the handle is pulled, the cylinder on the handle slides on the sliding slot on the reversing slider, and the reversing sliding spring mounted on the reversing slider is on the PCB board The commutation signal copper foil slides back and forth, thereby outputting the commutation signal, and the switch is connected to the tool to realize the commutation of the tool. The reversing handle is provided with three positions of left, middle and right, corresponding to the three concave and convex grooves arranged side by side, and the reversing handle is active in three positions of left, middle and right, and the reverse dialing The circular shaft disposed on the handle slides the sliding slider to slide the reversing slider, and the reversing hand steel ball at the bottom of the reversing slider moves in three concave and convex grooves arranged side by side in the concave and convex groove portion . The three specific states of the commutation correspond to the left, middle and right of the reversing handle, and the performance is forward or backward on the power tool.

5. The invention does not use the traditional dynamic and static contact acceleration and static terminal form to realize the contact and generation of the speed regulation signal, but through the speed regulation sliding elastic piece mounted on the push rod, during the button pressing or releasing process In the middle, contact the copper foil output signal of the speed control signal on the PCBA, and send the power control main control chip and the MOSFET tube and other power components, and then carry the large current through the left and right jumper terminals (and the heat dissipation function). Speed control function of the switch.

6. The invention does not use the traditional dynamic and static contact acceleration and static terminal form to realize the contact and generation of the main control signal, but the main control sliding signal on the PCBA is contacted by the main control sliding elastic piece mounted on the push rod. The copper foil output signal is given to the main control chip with software control and the MOSFET tube, and then the left and right jumper terminals (and the heat dissipation function) carry a large current to realize the on/off of the switch.

7. In order to ensure that the main control sliding elastic piece and the speed regulating sliding elastic piece mounted on the push rod are always stable and the signal is stable during the sliding process of the push rod, the present invention adopts a fixing plate on the push rod and designs a buckle portion on the cover plate. B. At the same time, the spring fixing column is used to fix the spring on the cover plate, so that the spring expansion and contraction moves on the stable axis, thus providing a reliable guarantee for the constant movement of the push rod.

8, 12 chip MOSFETs, 6 on the top and bottom are mounted on a thick PCB (Figure 1), through the heat sink heat dissipation (Figure 2), using the left and right jumper terminals with heat dissipation function (Figure 2), Fill the software, load the plastic parts, slide the shrapnel through the corresponding hardware, press the switch to realize such as LED light delay, soft start, over current protection, low voltage protection, MOSFET temperature protection, power display, battery pack over temperature detection, etc. Features.

9. By setting a correct and reliable sealing unit, the dustproof effect is good, making the switch more reliable and durable. The invention adopts multiple sealing structures, specifically through the PCB sealing ring, the push rod sealing ring, the heat-dissipating sealing ring and the sealing oil groove and the sealing port on the base and the cover plate, achieving the dustproof level of IP65 or higher, and providing more for the switch. A strong seal guarantee for longer life and more reliable signal output.

10. Install the brushless integrated switch in a convenient way. After the B+\B-wire or terminal is connected to the power supply, connect the U\V\W wire or terminal to the Hall version of the power tool to switch the phase of the brushless motor. Implement tool commutation. This design makes the switch compact, easy to assemble, safe and secure, and integrated with more functionality.

DRAWINGS

Figure 1 is a schematic view 1 of the present invention;

Figure 2 is a schematic view 2 of the present invention;

3 is a schematic view of the commutation signal copper foil, the speed control signal copper foil and the main control signal copper foil of the present invention;

4 is a schematic view of the reversing sliding elastic piece, the speed regulating sliding elastic piece and the main control sliding elastic piece of the present invention;

Figure 5 is an exploded view 1 of the commutation unit of the present invention;

Figure 6 is an exploded view of the commutation unit of the present invention 2;

Figure 7 is a schematic exploded view 1 of the reversing unit and the cover of the present invention;

Figure 8 is a schematic exploded view 2 of the reversing unit and the cover of the present invention;

Figure 9 is a schematic exploded view of the push rod and the cover plate of the present invention;

Figure 10 is a schematic view of the push rod spring of the present invention fixed to the spring;

Figure 11 is a schematic view 1 of the explosion of the present invention;

Figure 12 is a schematic view of the explosion of the present invention 2;

Figure 13 is a schematic view 3 of the explosion of the present invention;

Figure 14 is a schematic view 1 of the brushless integrated switch of the present invention after assembly;

Figure 15 is a schematic view 2 of the brushless integrated switch of the present invention;

Reference numerals: 1, reversing unit, 2, speed control unit, 3, main control switch unit, 4, PCB circuit board, 5, sealing unit, 6, heat sink unit, 7, base, 8, cover, 9 , button, 10, push rod, 11, fixed plate, 12, guide A or slider;

101, reversing slider, 102, reversing lever, 1021, round shaft, 103, reversing sliding shrapnel, 104, mounting fixing groove, 105, sliding groove, 106, groove, 107, spring, 108, reversing Feel the steel ball,

201, speed-adjusting sliding elastic piece, 301, main control sliding elastic piece, 701, heat dissipation hole;

401, commutation signal copper foil, 402, speed control copper foil, 403, main control signal copper foil, 404, main control chip, 405, MOSFET tube;

501, PCB sealing ring, 502, PCB sealing ring groove, 503, push rod sealing ring, 504, push rod sealing ring groove, 505, sealing stop, 506, sealing oil groove;

601, MOSFET heat sink, 602, heat sealing ring, 603, left jumper terminal, 604, right jumper terminal;

801, accommodating cavity A, 802, accommodating cavity B, 803, snap portion A, 804, concave and convex groove portion, 805, snap portion B, 806, guide rail B, 807, spring fixed, 808, push rod spring .

Detailed ways

The first embodiment of the present invention will be described in detail with reference to Figs. 1 through 15, but the claims of the present invention are not limited in any way.

As shown in FIG. 1 to FIG. 15, a brushless integrated switch includes a base 7, a cover 8, a button 9, a push rod 10, and a PCB circuit board 4, and the base 7 and the cover 8 are fitted and assembled. Together, the button 9 is assembled with one end of the push rod 10, and further includes a reversing unit 1, a speed control unit 2, and a main control switch unit 3;

An accommodating cavity A801 and a accommodating cavity B802 are disposed in the cover plate 8 for placing the reversing unit 2, and the accommodating cavity B802 is used for placing the push rod 10 The side wall of the description cavity A801 is provided with a buckle portion A803;

The reversing unit 1 includes a reversing slider 101 and a reversing lever 102. The bottom of one end of the diverting handle 102 is provided with a circular shaft 1021, and the bottom of the reversing slider 101 is provided with a reversing sliding elastic piece. 103. A sliding slot 105 is disposed in a sidewall of the reversing slider 101, and an angle between a center line of the sliding slot 105 along a longitudinal direction thereof and a bottom surface of the reversing slider 101 is 20°-80°. The circular shaft 1021 is inserted into the sliding slot 105, and the reversing slider 101 is slid along the shape of the sliding slot 105. The other side wall of the reversing slider 101 is provided with a mounting fixing slot. The mounting fixing groove 104 is disposed in a horizontal direction, and the locking portion A803 is configured to fix the mounting fixing groove 104 for sliding the reversing slider 101 only in a horizontal direction;

The speed regulating unit 2 includes a speed-adjusting sliding elastic piece 201, and the speed-adjusting sliding elastic piece 201 is disposed at the bottom of the pushing rod 10;

The main control switch unit 3 includes a main control sliding elastic piece 301, and the main control sliding elastic piece 301 is disposed at the bottom of the push rod 10;

The PCB circuit board 4 is a double-sided circuit board, and the speed control circuit module, the main control circuit module and the commutation control circuit module are integrated into a PCB double-sided circuit board by means of PCB double-sided wiring;

The PCB circuit board 4 is provided with a commutation signal copper foil 401, a speed control signal copper foil 402, a main control signal copper foil 403, a main control chip 404, a MOSFET tube 405, a positive B+ port, a negative B-port and three Phase U, V, W port, the commutation signal copper foil 401, the speed control signal copper foil 402, the main control signal copper foil 403 are arranged in parallel, the commutation signal copper foil 401, the speed control signal copper foil 402 and The main control signal copper foil 403 corresponds to the reversing sliding elastic piece 103, the speed regulating sliding elastic piece 201, and the main control sliding elastic piece 301, respectively.

More specifically, the reversing signal copper foil 401 is three copper foils, the speed control signal copper foil 402 and the main control signal copper foil 403 are two, the reversing sliding elastic piece 103, the speed regulating sliding elastic piece 201 Both the main control slide shrapnel 301 have two antennae.

More specifically, the top of the reversing slider 101 is provided with a groove 106, the groove 106 is disposed with a spring 107, and the spring 107 is provided with a reversing feeling at an end near the top of the reversing slider 101. The steel ball 108 is provided with a concave-convex groove portion 804 at the bottom of the accommodating cavity A801, the concave-convex groove portion 804 is three concave-convex grooves arranged in parallel, and the reversing handle 102 is provided with three positions of left, middle and right. Corresponding to the three concave and convex grooves arranged in parallel, the reversing handle 102 is movable in the left, middle and right gear positions, and the circular shaft 1021 provided on the reversing handle 102 is in the sliding groove 105. The reversing slider 101 is slid by the sliding, and the reversing handle ball 108 at the bottom of the reversing slider 101 moves in three concave and convex grooves which are arranged side by side in the concave and convex groove portion 804.

More specifically, the other end of the push rod 10 is provided with a fixing plate 11 , and a side of the receiving cavity B802 is provided with a buckle portion B805 for fixing the fixing plate 11 .

More specifically, the bottom of the push rod 10 is provided with a guide rail A or a slider 12, and a bottom portion of the accommodating chamber B802 is provided with a guide rail B806, and the guide rail A or the slider 12 is nested in the guide rail B806. The guide rail B806 is used for fixing the push rod 10 to slide the push rod 10 along the length of the guide rail B806. The bottom of the receiving chamber B802 is provided with a spring fixing 807, and the spring is fixed on the 807 and is provided with a push. A rod spring 808, one end of the push rod spring 808 is placed on the push rod 10.

More specifically, the positive B+ port, the negative B-port, and the three-phase U, V, W ports are located outside the base 7 and the cover 8.

More specifically, the sealing unit 5 further includes a sealing ring 501 at both ends of the PCB circuit board 4, a PCB sealing ring groove 502, a push rod sealing ring 503 and a push rod sealing ring groove 504, and a sealing opening 505. And sealing oil groove 506.

More specifically, the heat dissipation unit 6 is further included, and the heat dissipation unit 6 includes two MOSFET heat sinks 601, a heat dissipation sealing ring 604, a left jumper terminal 603, and a right jumper terminal 604.

More specifically, the pedestal 7 is provided with a heat dissipation hole 701, and the heat dissipation sealing ring 604 blocks the heat dissipation hole 701 and functions as a dustproof.

More specifically, the left jumper terminal 603 and the right jumper terminal 604 are made of copper, have a good heat dissipation function, and can withstand a large current.

The bottom of the reversing slider 101 means that the side close to the base 7 is the bottom, and the top of the reversing slider 101 means that the side close to the cover 8 is the top.

In summary, the present invention has the following advantages:

3. The positive B+ port, the negative B-port, and the three-phase U, V, and W ports are disposed outside the base (7) and the cover (8) to further reduce the switch formed by the cover and the base. Volume, and all wiring with positive B+ port, negative B-port and three-phase U, V, W ports are all placed outside the switch, eliminating the need for circuit wiring inside the switch, reducing circuit interference, and reducing the cause A fault caused by a flashover between the boards.

4. The reversing lever and the reversing slider, the reversing hand spring, the reversing hand steel ball and the like are mounted on the cover plate, and the mounting fixing groove on the reversing slider and the buckle portion A on the cover plate are And the concave and convex slot on the cover plate, when the handle is pulled, the cylinder on the handle slides on the sliding slot on the reversing slider, and the reversing sliding spring mounted on the reversing slider is on the PCBA assembly The commutation signal copper foil slides back and forth, thereby outputting the commutation signal, and the switch is connected to the tool to realize the commutation of the tool. The three specific states of the commutation correspond to the left, middle and right of the reversing handle, and the performance is forward or backward on the power tool.

It is to be understood that the detailed description of the present invention is not to be construed as limited The invention may be modified or equivalently substituted to achieve the same technical effects without departing from the scope of the invention.

Claims

A brushless integrated switch comprising a base (7), a cover plate (8), a button (9), a push rod (10) and a PCB circuit board (4), the base (7) and the cover plate (8) The fittings are assembled together, and the button (9) is assembled with one end of the push rod (10), and is characterized in that it further comprises a reversing unit (1), a speed regulating unit (2), and a main control switch unit ( 3);

An accommodating cavity A (801) and a accommodating cavity B (802) are disposed in the cover plate (8), and the accommodating cavity A (801) is used for placing the reversing unit (2), the capacity a cavity B (802) for placing the push rod (10), the side of the accommodating cavity A (801) is provided with a buckle portion A (803);

The reversing unit (1) includes a reversing slider (101) and a reversing lever (102), and a bottom of one end of the diverting handle (102) is provided with a circular shaft (1021), the reversing direction A reversing sliding elastic piece (103) is disposed at a bottom of the sliding block (101), and a sliding groove (105) is disposed in a sidewall of the reversing sliding block (101), and a center line of the sliding groove (105) along a longitudinal direction thereof An angle between the bottom surface of the reversing slider (101) is 20°-80°, and the circular shaft (1021) is inserted into the sliding groove (105) and moves along the shape of the sliding groove (105). The reversing slider (101) is slid, and the other side wall of the reversing slider (101) is provided with a mounting fixing groove (104), and the mounting fixing groove (104) is disposed in a horizontal direction. The fastening portion A (803) is for fixing the mounting fixing groove (104) for sliding the reversing slider (101) only in the horizontal direction;

The speed regulating unit (2) includes a speed-adjusting sliding elastic piece (201), and the speed-adjusting sliding elastic piece (201) is disposed at a bottom of the pushing rod (10);

The main control switch unit (3) includes a main control sliding elastic piece (301), and the main control sliding elastic piece (301) is disposed at the bottom of the push rod (10);

The PCB circuit board (4) is a double-sided circuit board, and the speed control circuit module, the main control circuit module and the commutation control circuit module are integrated into a PCB double-sided circuit board by means of PCB double-sided wiring;

The PCB circuit board (4) is provided with a commutation signal copper foil (401), a speed control signal copper foil (402), a main control signal copper foil (403), a main control chip (404), and a MOSFET tube (405). , positive B+ port, negative B-port and three-phase U, V, W port, the commutation signal copper foil (401), the speed control copper foil (402), and the main control signal copper foil (403) are parallel The reversing signal copper foil (401), the speed regulating signal copper foil (402) and the main control signal copper foil (403) are respectively associated with the reversing sliding elastic piece (103), the speed regulating sliding elastic piece (201), and The main control slide shrapnel (301) corresponds.
The brushless integrated switch according to claim 1, wherein the commutation signal copper foil (401) is three copper foils, the speed control signal copper foil (402) and a main control signal copper foil (403). There are two, and the reversing sliding elastic piece (103), the speed regulating sliding elastic piece (201) and the main control sliding elastic piece (301) have two antennae.
The brushless integrated switch according to claim 2, wherein the bottom of the reversing slider (101) is provided with a groove (106), and the groove (106) is provided with a spring (107). The spring (107) is provided with a reversing hand-feeling steel ball (108) at an end near the bottom of the reversing slider (101), and the bottom of the accommodating cavity A (801) is provided with a concave-convex groove portion (804), The concave-convex groove portion (804) is three concave-convex grooves arranged in parallel, and the reversing handle (102) is provided with three positions of left, middle and right, corresponding to the three concave-convex grooves arranged side by side, the change Moving to the handle (102) in the left, middle and right positions, the circular shaft (1021) provided on the reversing handle (102) slides on the sliding slot (105) to drive the reversing slide The block (101) slides, and the reversing hand-feeling steel ball (108) at the bottom of the reversing slider (101) moves in three concave-convex grooves arranged side by side in the concave-convex groove portion (804).
The brushless integrated switch according to claim 1, wherein the other end of the push rod (10) is provided with a fixing plate (11), and the side wall of the receiving cavity B (802) is disposed The buckle portion B (805) is used to fix the fixing plate (11).
The brushless integrated switch according to claim 1, characterized in that: the bottom of the push rod (10) is provided with a guide rail A or a slider (12), and the bottom of the accommodating chamber B (802) is provided with a guide rail B (806), the guide rail A or the slider (12) is nested within the guide rail B (806) for fixing the push rod (10) to the push rod (10) ) sliding along the length of the guide rail B (806), the bottom of the accommodating chamber B (802) is provided with a spring fixing (807), and the spring fixing (807) is provided with a push rod spring (808). One end of the push rod spring (808) is placed on the push rod (10).
The brushless integrated switch according to claim 1, wherein said positive B+ port, negative B-port and three-phase U, V, W ports are located at said base (7) and cover (8) outer.
A brushless integrated switch according to claim 1, further comprising a sealing unit (5) comprising a PCB sealing ring (501) at both ends of the PCB circuit board (4) and a PCB seal A ring groove (502), a push rod seal ring (503) and a push rod seal ring groove (504), a seal stop (505), and a seal oil groove (506).
The brushless integrated switch according to claim 1, further comprising a heat dissipation unit (6), the heat dissipation unit (6) comprising two MOSFET heat sinks (601), a heat dissipation sealing ring (604), and a left jump Line terminal (603), right jumper terminal (604).
The brushless integrated switch according to claim 1, wherein the base (7) is provided with a heat dissipation hole (701), and the heat dissipation sealing ring (604) is for shielding the heat dissipation hole (701). It plays a role in dust prevention.
A brushless integrated switch according to claim 1, wherein said left jumper terminal (603) and right jumper terminal (604) are made of copper.