CN219351407U

CN219351407U - Rear end cover structure of wireless motor

Info

Publication number: CN219351407U
Application number: CN202320301572.8U
Authority: CN
Inventors: 高冬雷; 王在峰
Original assignee: Xuzhou Keya Electromechanical Co ltd
Current assignee: Xuzhou Keya Electromechanical Co ltd
Priority date: 2023-02-24
Filing date: 2023-02-24
Publication date: 2023-07-14
Anticipated expiration: 2033-02-24

Abstract

The utility model discloses a rear end cover structure of a wireless motor, which relates to the technical field of motors and comprises a rear cover plate and a protection plate, wherein the rear cover plate is detachably connected with a motor shell, and a three-phase wire connection seat, a Hall locking wire outlet device and a waterproof ventilation valve are arranged on the rear cover plate. According to the utility model, the three-phase wire seat, the Hall locking wire outlet device and the waterproof ventilation valve on the rear cover plate are covered and protected by the protective plate, so that the three-phase wire and the Hall wire are not easy to damage; the limiting groove and the positioning groove are formed, the positioning block can be used for positioning and limiting the three-phase line wire holder conveniently, the direction installation error of the three-phase line wire holder is prevented, the position firmness of the three-phase line wire holder is increased, and the waterproof rubber pad or the silica gel can be used for sealing the gap between the three-phase line wire holder and the rear cover plate.

Description

Rear end cover structure of wireless motor

Technical Field

The utility model relates to the technical field of motors, in particular to a rear end cover structure of a wireless motor.

Background

Motors are the core drive components of electric vehicles, electric tricycles, and many engineering machinery devices, and generally include a stator, a rotor, a bearing, a housing, a front end cover, a rear end cover, and the like. The front end of the motor is an output end, the rear end is often a wiring terminal, and three-phase wires, hall wires and the like in the motor are all connected out from the rear end of the motor.

Because the motor is likely to be in a relatively severe working environment, corresponding structural designs are required for fixing protection, water prevention and the like of the three-phase line and the Hall line at the rear end cover of the motor, and falling damage and water inflow of the three-phase line and shaking and falling of the Hall line are prevented, so that the utility model provides the rear end cover structure of the wireless motor.

Disclosure of Invention

The utility model provides a rear end cover structure of a wireless motor, which strengthens the fixation of a three-phase line and a Hall line and protects components on the rear end cover.

In order to achieve the above purpose, the technical scheme adopted by the utility model is as follows:

a rear end cover structure of a wireless motor comprises a rear cover plate and a protection plate, wherein the rear cover plate is detachably connected with a motor shell, and a three-phase wire connection seat, a Hall locking wire outlet device and a waterproof ventilation valve are arranged on the rear cover plate; be provided with a plurality of spliced poles on the back shroud, guard plate detachable fixes on the spliced pole and can cover three-phase line connection terminal, hall lock outlet device and waterproof ventilative valve.

Preferably, the back cover plate is provided with a wiring seat mounting hole, a threaded hole and an air-permeable valve mounting groove, the three-phase wiring seat is clamped on the wiring seat mounting hole through a positioning block, the Hall locking wire outlet device is installed on the threaded hole in a threaded mode, and the waterproof air-permeable valve is installed on the air-permeable valve mounting groove.

Preferably, the three-phase wire holder comprises two wire connection ports, a limit flange is arranged between the two wire connection ports, a limit groove is arranged between one wire connection port and the limit flange, and the limit flange can be propped against one end of the wire holder mounting hole, which is close to the motor.

Preferably, a rubber cushion groove is formed in one end, far away from the motor, of the wire holder mounting hole in the rear cover plate, a positioning groove matched with the positioning block is formed in the rubber cushion groove, and the positioning block can simultaneously abut against the positioning groove and the limiting groove.

Preferably, the rubber cushion groove is provided with a waterproof rubber cushion.

Preferably, the Hall locking wire outlet device comprises a threaded column, a threaded cap, a rubber sleeve and an elastic extrusion sleeve, wherein a through wire outlet hole is formed in the center of the threaded column, one end of the threaded column is in threaded fit with the threaded hole, the other end of the threaded column is in threaded fit with the threaded cap, and a wire outlet is formed in the threaded cap; the elastic extrusion sleeve is sleeved on the rubber sleeve, the elastic extrusion sleeve is arranged in the wire outlet hole, one end of the elastic extrusion sleeve can be abutted with the threaded column, and the other end of the elastic extrusion sleeve can be abutted with the threaded cap.

Compared with the prior art, the utility model has the beneficial effects that:

through the arrangement of the connecting column and the protection plate, the protection plate can be fixed on the connecting column to form the covering protection for the three-phase wire connection seat, the Hall locking wire outlet device and the waterproof ventilation valve on the rear cover plate, so that the three-phase wire and the Hall wire are not easy to damage; the limiting groove and the positioning groove are arranged, so that the positioning block can be used for conveniently positioning and limiting the three-phase wire holder, the direction installation error of the three-phase wire holder is prevented, the position firmness of the three-phase wire holder is increased, and the gap between the three-phase wire holder and the rear cover plate can be further sealed by using the waterproof rubber pad or the silica gel; through rotatory screw cap, can impel elasticity extrusion cover extrusion rubber sleeve, and then lock the hall line for the hall line can not rock and loosen and drop.

Drawings

FIG. 1 is a schematic illustration of the present utility model mounted on an electric motor;

FIG. 2 is a schematic view of the installation of the components on the back cover of the present utility model;

FIG. 3 is a schematic view of the structure of the back cover plate of the present utility model;

FIG. 4 is a schematic view of the cooperation of the back cover plate, the positioning slot, the positioning block and the three-phase wire connector of the present utility model;

fig. 5 is a schematic structural view of the three-phase wire holder of the present utility model;

FIG. 6 is a Hall lock outlet device of the present utility model;

fig. 7 is a perspective view of the back cover plate of the present utility model.

In the figure: 1. the back cover plate, 11, the rubber cushion groove, 12, the wire holder mounting hole, 13, the positioning groove, 14, the threaded hole, 15, the breather valve mounting groove, 16, the positioning block, 2, the protection plate, 3, the connecting column, 4, the three-phase wire holder, 41, the wire connection port, 42, the limit flange, 43, the limit groove, 5, the hall locking wire outlet device, 51, the threaded column, 52, the screw cap, 53, the rubber sleeve, 54, the elastic extrusion sleeve, 55, the hexagonal flange, 6, the waterproof breather valve, 7 and the waterproof rubber cushion.

Detailed Description

The following description of the embodiments of the present utility model will be made more fully hereinafter with reference to the accompanying drawings, in which embodiments of the utility model are shown, in which some, but not all embodiments of the utility model are shown. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

As shown in fig. 1 to 7, the rear end cover structure of a wireless motor according to an embodiment of the present utility model includes a rear cover plate 1 and a shielding plate 2, and the shielding plate 2 serves to protect components mounted on the rear cover plate 1. Specifically, the back cover plate 1 is connected with the motor shell through screws, and three-phase wire holders 4, a Hall locking wire outlet device 5 and a waterproof ventilation valve 6 are arranged on the back cover plate 1. Simultaneously, be provided with six spliced poles 3 on the back shroud 1, guard plate 2 passes through screw fixed mounting on spliced pole 3. When the rear cover plate 1 is observed from the axial direction of the motor, the three-phase wire holder 4, the Hall locking wire outlet device 5 and the waterproof ventilation valve 6 are covered and protected by the protection plate 2, so that the damage probability of the junction of the three-phase wire and the Hall wire is greatly reduced.

Three wiring seat mounting holes 12, a threaded hole 14 and an air-permeable valve mounting groove 15 are formed in the rear cover plate 1, and three-phase wiring seats 4 are respectively mounted in the three wiring seat mounting holes 12. The waterproof ventilation valve 6 is arranged in the ventilation valve mounting groove 15, and can play roles of ventilation, heat dissipation and water prevention. The Hall locking wire outlet device 5 is arranged in the threaded hole 14 in a threaded manner and is used for locking and clamping the Hall wire.

The specific structure of the three-phase wire holder 4 comprises a main body and two wire connection ports 41 respectively arranged at two ends of the main body, a copper frame is connected between the two wire connection ports 41, a circle of limit flange 42 is arranged on the main body between the two wire connection ports 41, and a limit groove 43 is formed in the main body between one wire connection port 41 and the limit flange 42. The two wiring ports 41 are connected to the wiring in the motor and the wiring of the controller, respectively.

The mounting of the three-phase wire connector 4 needs to be completed before the rear cover plate 1 is mounted to the motor housing. Firstly, one end of the three-phase wire holder 4 with the limit groove 43 is inserted from one side of the wire holder mounting hole 12 close to the motor to one side far away from the motor, at this time, the limit flange 42 can be abutted against one side of the wire holder mounting hole 12 close to the motor, and meanwhile, the limit groove 43 is exposed from one side of the wire holder mounting hole 12 far away from the motor. The rubber cushion groove 11 is formed in one end, far away from the motor, of the wire holder mounting hole 12, the positioning groove 13 is formed in the rubber cushion groove 11, the positioning block 16 can be inserted from the positioning groove 13, one end of the positioning block 16 is pushed into the limiting groove 43, and limiting of the three-phase wire holder 4 is formed. Then a waterproof rubber cushion 7 can be arranged on the rubber cushion groove 11 to prevent water from entering the gap.

The Hall locking wire outlet device 5 comprises a threaded cap 52, a rubber sleeve 53, an elastic extrusion sleeve 54 and a threaded column 51 in threaded fit with the threaded hole 14, a through wire outlet hole is formed in the center of the threaded column 51, a step is arranged in the wire outlet hole, the elastic extrusion sleeve 54 is sleeved on the rubber sleeve 53 and placed in the wire outlet hole, and one end of the elastic extrusion sleeve 54 can be abutted against the step. The screw cap 52 can be screwed on the screw post 51, and a wire outlet matched with the wire outlet hole is formed at the top of the screw cap 52, and the other end of the elastic extrusion sleeve 54 can be abutted in the screw cap 52. Thus, when the screw cap 52 is rotated, the interval between the screw cap 52 and the screw post 51 is gradually reduced, so that the elastic pressing sleeve 54 is pressed, which deforms the elastic pressing sleeve 54 and gradually presses the rubber sleeve 53, and the hall wire is passed through the rubber sleeve 53 and out of the wire outlet, so that the rubber sleeve 53 is pressed tightly to clamp the hall wire, thereby fixing the position of the hall wire.

In order to facilitate twisting of the threaded post 51 and the threaded cap 52, hexagonal flanges 55 are provided on both the threaded post 51 and the threaded cap 52 to facilitate rotation using a wrench.

When in use, the utility model is characterized in that: firstly, three-phase wires are installed on a back cover plate 1, then the three-phase wires and the hall wires are installed, the back cover plate 1 is installed on a motor shell, and finally, a protection plate 2 is fixedly installed, so that the installation of a motor back end cover is completed.

It will be evident to those skilled in the art that the utility model is not limited to the details of the foregoing illustrative embodiments, and that the present utility model may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are, therefore, to be considered in all respects as illustrative and not restrictive, the scope of the utility model being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Furthermore, it should be understood that although the present disclosure describes embodiments, not every embodiment is provided with a separate embodiment, and that this description is provided for clarity only, and that the disclosure is not limited to the embodiments described in detail below, and that the embodiments described in the examples may be combined as appropriate to form other embodiments that will be apparent to those skilled in the art.

Claims

1. The rear end cover structure of the wireless motor is characterized by comprising a rear cover plate (1) and a protection plate (2), wherein the rear cover plate (1) is detachably connected with a motor shell, and a three-phase wire connection seat (4), a Hall locking wire outlet device (5) and a waterproof ventilation valve (6) are arranged on the rear cover plate (1); be provided with a plurality of spliced poles (3) on back shroud (1), guard plate (2) detachable fix on spliced pole (3) and can cover three-phase line connection terminal (4), hall lock outlet device (5) and waterproof ventilative valve (6).

2. The rear end cover structure of a wireless motor according to claim 1, wherein a wire holder mounting hole (12), a threaded hole (14) and an air-permeable valve mounting groove (15) are formed in the rear cover plate (1), the three-phase wire holder (4) is clamped on the wire holder mounting hole (12) through a positioning block (16), the hall locking wire outlet device (5) is installed on the threaded hole (14) in a threaded mode, and the waterproof air-permeable valve (6) is installed on the air-permeable valve mounting groove (15).

3. A rear end cap structure for a radio motor according to claim 2, wherein the three-phase wire holder (4) comprises two wire connection ports (41), a limit flange (42) is provided between the two wire connection ports (41), a limit groove (43) is provided between one wire connection port (41) and the limit flange (42), and the limit flange (42) can be abutted against one end of the wire holder mounting hole (12) close to the motor.

4. A rear end cover structure of a wireless motor as claimed in claim 3, wherein a rubber pad groove (11) is formed in one end, far away from the motor, of the wire holder mounting hole (12) in the rear cover plate (1), a positioning groove (13) matched with the positioning block (16) is formed in the rubber pad groove (11), and the positioning block (16) can simultaneously abut against the positioning groove (13) and the limiting groove (43).

5. A rear end cover structure for a radio motor according to claim 4, characterized in that the rubber pad groove (11) is provided with a waterproof rubber pad (7).

6. The rear end cover structure of a wireless motor according to claim 2, wherein the hall locking wire outlet device (5) comprises a threaded column (51), a threaded cap (52), a rubber sleeve (53) and an elastic extrusion sleeve (54), a through wire outlet hole is formed in the center of the threaded column (51), one end of the threaded column (51) is in threaded fit with the threaded hole (14), the other end of the threaded column is in threaded fit with the threaded cap (52), and a wire outlet is formed in the threaded cap (52); the elastic extrusion sleeve (54) is sleeved on the rubber sleeve (53), the elastic extrusion sleeve (54) is arranged in the wire outlet hole, one end of the elastic extrusion sleeve can be abutted with the threaded column (51), and the other end of the elastic extrusion sleeve can be abutted with the threaded cap (52).