A protective device for the wiring harness plug of an electric vehicle motor controller

Abstract

This utility model discloses a protective device for a wiring harness plug of an electric vehicle motor controller, including a controller, electronic components fixedly installed inside the controller, a sealing cover fixedly installed on the top of the controller, and recessed grooves on both sides of the sealing cover, with a cooling fan embedded inside each groove. A snap-fit ​​block is fixedly installed on one side inside the controller, and a protective cover is fixedly installed on the front of the controller. A waterproof cover is rotatably connected to the top of the protective cover. This utility model utilizes the controller, sealing cover, protective cover, waterproof cover, and protective mechanism. During use, the sealing cover is installed on the top of the controller, and then the waterproof cover is rotated through the protective cover. The waterproof cover then seals the wiring harness plug through the protective mechanism, reducing the possibility of water ingress. Furthermore, the protective mechanism can position the wiring harness plug, preventing internal wiring breakage due to pulling.

Description

Technical Field

[0001] This utility model relates to the field of controller plug protection technology, and in particular to a wiring harness plug protection device for electric vehicle motor controllers. Background Technology

[0002] The motor controller is an integrated circuit responsible for controlling the motor to operate according to set directions, speeds, angles, and response times. It converts the DC power supplied by the power battery into three-phase AC power to power the vehicle's drive motor, enabling starting, running, forward and reverse speeds, climbing power, and other driving states, or assisting in the braking of electric vehicles and storing some braking energy in the power battery. The main function of the electronic wiring harness plug is to transmit signals and current. Therefore, the high-voltage cable harness of new energy vehicles is located between the controller and the motor, while the electronic wiring harness plug is used to transmit information to the motor controller to control the motor. During the use of the controller, the controller will be connected to the wiring harness plug. After the wiring harness plug is installed, foreign objects can easily enter its interior, affecting the plug. Furthermore, the wiring harness plug is prone to detachment when pulled. Therefore, those skilled in the art provide a wiring harness plug protection device for electric vehicle motor controllers to solve the problems mentioned in the background art. Utility Model Content

[0003] The purpose of this utility model is to address the shortcomings of existing technologies by proposing a protective device for the wiring harness plug of an electric vehicle motor controller.

[0004] To achieve the above objectives, the present invention adopts the following technical solution:

[0005] A wiring harness plug protection device for an electric vehicle motor controller includes a controller, an electronic component fixedly installed inside the controller, a sealing cover fixedly installed on the top of the controller, recessed grooves on both sides of the surface of the sealing cover, a cooling fan embedded inside the recessed grooves, a snap-fit ​​block fixedly installed on one side inside the controller, a protective cover fixedly installed on the front of the controller, a waterproof cover rotatably connected to the top of the protective cover, and several protective mechanisms fixedly installed on the surface of the protective cover.

[0006] As a further embodiment of this utility model, mounting grooves are provided on both sides of the surface of the controller, and a sealing plate is fixedly installed inside the mounting groove. Positioning grooves are provided at the four corners of the surface of the sealing plate, and positioning bolts are provided inside the positioning grooves.

[0007] As a further improvement of this utility model, support blocks are fixedly installed at the four corners of the bottom of the controller, and rubber pads to improve stability are fixedly installed at the bottom of the support blocks.

[0008] As a further embodiment of this utility model, the protective mechanism includes a guide tube fixedly installed on the surface of the protective cover. A threaded groove is provided on the top of the guide tube, and a threaded rod is threadedly connected inside the threaded groove. An arc-shaped plate is rotatably connected to one end of the threaded rod. Limit frames are fixedly installed on both sides of the surface of the guide tube, and a sealing component is fixedly installed inside the limit frame. A plug is provided inside the sealing component.

[0009] As a further embodiment of this utility model, the sealing assembly includes telescopic rods fixedly installed at the four corners inside the limiting frame. Springs are sleeved on the surface of the telescopic rods. A clamping block is fixedly installed at one end of the telescopic rod. A connecting rod is fixedly installed on one side of the surface of the clamping block. A sealing gasket is fixedly installed at one end of the connecting rod.

[0010] As a further embodiment of this utility model, the clamping block is provided with a conical groove inside, and the inner wall of the conical groove is in contact with the surface of the plug.

[0011] As a further embodiment of this utility model, a connecting block is fixedly installed at one end of the telescopic rod, the diameter of the connecting block is larger than the diameter of the spring, and one end of the spring is fixedly installed on the back of the connecting block.

[0012] As a further improvement of this utility model, the surface of the waterproof cover is provided with a plurality of sealing grooves, the size of which is adapted to the size of the guide tube.

[0013] The beneficial effects of this utility model are as follows:

[0014] By utilizing the controller, sealing cover, protective cover, waterproof cover, and protective mechanism, during use, the personnel install the sealing cover on the top of the controller. Then, the personnel rotate the waterproof cover through the protective cover. The waterproof cover will then seal the wire harness plug through the protective mechanism, reducing the possibility of water entering the wire harness plug. The protective mechanism can also position the wire harness plug to prevent internal circuit breakage due to pulling. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of a wiring harness plug protection device for an electric vehicle motor controller proposed in this utility model;

[0016] Figure 2 This is a schematic diagram showing the disassembled structure of a wiring harness plug protection device for an electric vehicle motor controller proposed in this utility model;

[0017] Figure 3 This is a schematic diagram of the protective mechanism structure of a wiring harness plug protection device for an electric vehicle motor controller proposed in this utility model;

[0018] Figure 4 This is a schematic diagram of the controller structure of a wiring harness plug protection device for an electric vehicle motor controller proposed in this utility model.

[0019] In the diagram: 1. Controller; 2. Electronic component; 3. Sealing cover; 4. Cooling fan; 5. Clip block; 6. Protective cover; 7. Waterproof cover; 8. Protective cabinet; 81. Guide tube; 82. Threaded rod; 83. Arc plate; 84. Limit frame; 85. Sealing assembly; 851. Telescopic rod; 852. Spring; 853. Clamping block; 854. Connecting rod; 855. Sealing gasket; 86. Plug; 9. Sealing plate; 10. Support block. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. It should be noted that, unless otherwise expressly specified and limited, the terms "installation", "connection", and "setting" should be interpreted broadly. For those skilled in the art, the specific meaning of the above terms in this patent can be understood according to the specific circumstances.

[0021] Reference Figures 1-4 A protective device for a wiring harness plug of an electric vehicle motor controller includes a controller 1, an electronic component 2 fixedly installed inside the controller 1, a sealing cover 3 fixedly installed on the top of the controller 1, an embedding groove on both sides of the surface of the sealing cover 3, a cooling fan 4 embedded inside the embedding groove, a snap-fit ​​block 5 fixedly installed on one side inside the controller 1, a protective cover 6 fixedly installed on the front of the controller 1, a waterproof cover 7 rotatably connected to the top of the protective cover 6, and several protective mechanisms 8 fixedly installed on the surface of the protective cover 6.

[0022] By utilizing the cooling fan 4, once the cooling fan 4 is turned on, it will dissipate the heat energy inside the controller 1, and after dissipation, the internal temperature of the controller 1 will decrease.

[0023] The controller 1 has mounting slots on both sides of its surface. A sealing plate 9 is fixedly installed inside the mounting slots. A positioning slot is provided at each of the four corners of the sealing plate 9. A positioning bolt is installed inside the positioning slot. A support block 10 is fixedly installed at each of the four corners of the bottom of the controller 1. A rubber pad to improve stability is fixedly installed at the bottom of the support block 10.

[0024] With the use of the sealing plate 9, if the controller 1 is damaged, personnel can disassemble the sealing plate 9 through the positioning bolt to repair the electronic components inside the controller 1. In addition, the support block 10 set at the bottom of the controller 1 will support the controller 1, improving the stability of the controller 1 during use.

[0025] In this utility model, the protective mechanism 8 includes a guide tube 81 fixedly installed on the surface of the protective cover 6. A threaded groove is formed at the top of the guide tube 81, and a threaded rod 82 is threadedly connected inside the groove. One end of the threaded rod 82 is rotatably connected to an arc-shaped plate 83. Limit frames 84 are fixedly installed on both sides of the guide tube 81. A sealing assembly 85 is fixedly installed inside the limit frame 84. A plug 86 is provided inside the sealing assembly 85. The sealing assembly 85 includes telescopic rods 851 fixedly installed at the four corners inside the limit frame 84. Springs 852 are sleeved on the surface of the telescopic rods 851. One end of the telescopic rod 851 is fixedly installed with a clamping block 853. A connecting rod 854 is fixedly installed on one side of the surface of the clamping block 853. A sealing gasket 855 is fixedly installed on one end of the connecting rod 854. A conical groove is provided inside the clamping block 853. The inner wall of the conical groove is in contact with the surface of the plug 86. A connecting block is fixedly installed on one end of the telescopic rod 851. The diameter of the connecting block is larger than the diameter of the spring 852. One end of the spring 852 is fixedly installed on the back of the connecting block. Several sealing grooves are opened on the surface of the waterproof cover 7. The size of the sealing grooves is adapted to the size of the guide tube 81.

[0026] In particular, when protecting the plug 86, after the personnel insert the plug 86 into the guide tube 81, they rotate the threaded rod 82 through the guide tube 81. When the threaded rod 82 rotates, it will drive the arc plate 83 to move downward. The arc plate 83 will position the plug 86. When the plug 86 is inserted, the plug 86 will squeeze the telescopic rod 851 and the spring 852 through the clamping block 853. After the telescopic rod 851 and the spring 852 are squeezed, they will rebound. When the clamping block 853 moves, it will move the sealing gasket 855 through the connecting rod 854. When the clamping block 853 rebounds, it will move towards the center simultaneously to position the plug 86 inside the conical groove. The sealing gasket 855 will then come into contact with the plug 86 to seal the gap between the plug 86 and the clamping block 853.

[0027] Working principle: When the controller 1 needs maintenance, personnel can disassemble the sealing plate 9 through the positioning bolt to repair the electronic components inside the controller 1. The support block 10 at the bottom of the controller 1 will support the controller 1 and protect the plug 86. After the personnel insert the plug 86 into the guide tube 81, they will rotate the threaded rod 82 through the guide tube 81. When the threaded rod 82 rotates, it will drive the arc plate 83 to move downward. The arc plate 83 will position the plug 86 and protect it. During insertion, the plug 86 will compress the telescopic rod 851 and spring 852 through the clamping block 853. After being compressed, the telescopic rod 851 and spring 852 will rebound. When the clamping block 853 moves, it will move the sealing gasket 855 through the connecting rod 854. When the clamping block 853 rebounds, it will move towards the center to position the plug 86 inside the conical groove. The sealing gasket 855 will then come into contact with the plug 86 to seal the gap between the plug 86 and the clamping block 853.

[0028] In this application, the structures and connections not described in detail are all prior art, and their structures and principles are well known, so they will not be described in detail here.

[0029] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A wiring harness plug protection device for an electric vehicle motor controller, comprising a controller (1), characterized in that, Electronic components (2) are fixedly installed inside the controller (1). A sealing cover (3) is fixedly installed on the top of the controller (1). An embedding groove is provided on both sides of the surface of the sealing cover (3). A heat dissipation fan (4) is embedded inside the embedding groove. A snap-fit ​​block (5) is fixedly installed on one side inside the controller (1). A protective cover (6) is fixedly installed on the front of the controller (1). A waterproof cover (7) is rotatably connected to the top of the protective cover (6). Several protective mechanisms (8) are fixedly installed on the surface of the protective cover (6).

2. The wiring harness plug protection device for an electric vehicle motor controller according to claim 1, characterized in that, The controller (1) has mounting grooves on both sides of its surface. A sealing plate (9) is fixedly installed inside the mounting groove. A positioning groove is provided at each of the four corners of the sealing plate (9). A positioning bolt is provided inside the positioning groove.

3. The wiring harness plug protection device for an electric vehicle motor controller according to claim 1, characterized in that, Support blocks (10) are fixedly installed at the four corners of the bottom of the controller (1), and rubber pads to improve stability are fixedly installed at the bottom of the support blocks (10).

4. The wiring harness plug protection device for an electric vehicle motor controller according to claim 1, characterized in that, The protective mechanism (8) includes a guide tube (81) fixedly installed on the surface of the protective cover (6). The top of the guide tube (81) is provided with a threaded groove. A threaded rod (82) is threadedly connected inside the threaded groove. An arc plate (83) is rotatably connected to one end of the threaded rod (82). Limit frames (84) are fixedly installed on both sides of the surface of the guide tube (81). A sealing component (85) is fixedly installed inside the limit frame (84). A plug (86) is provided inside the sealing component (85).

5. A protective device for a wiring harness plug for an electric vehicle motor controller according to claim 4, characterized in that, The sealing assembly (85) includes telescopic rods (851) fixedly installed at the four corners inside the limiting frame (84). Springs (852) are sleeved on the surface of the telescopic rods (851). A clamping block (853) is fixedly installed at one end of the telescopic rods (851). A connecting rod (854) is fixedly installed on one side of the surface of the clamping block (853). A sealing gasket (855) is fixedly installed at one end of the connecting rod (854).

6. A wiring harness plug protection device for an electric vehicle motor controller according to claim 5, characterized in that, The clamping block (853) has a conical groove inside, and the inner wall of the conical groove is in contact with the surface of the plug (86).

7. A wiring harness plug protection device for an electric vehicle motor controller according to claim 5, characterized in that, A connecting block is fixedly installed at one end of the telescopic rod (851). The diameter of the connecting block is larger than the diameter of the spring (852). One end of the spring (852) is fixedly installed on the back of the connecting block.

8. A wiring harness plug protection device for an electric vehicle motor controller according to claim 1, characterized in that, The surface of the waterproof cover (7) is provided with several sealing grooves, the size of which is adapted to the size of the guide tube (81).

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