Motor controller with firmly plugged wiring terminals

Abstract

The motor controller comprises a controller housing, one end of the controller housing is provided with a top cover in a clamping manner, the outer surface of one end, close to a supporting platform, of the controller housing is provided with a plug wire terminal in a penetrating manner, one end of the plug wire terminal is provided with a rotating clamping mechanism, and the other end of the plug wire terminal is provided with a connecting rod. And the wiring terminal is fixed by rotating the clamping mechanism, so that the terminal plug is prevented from accidentally running out, and the terminal plug can be fixed more firmly. According to the motor controller capable of firmly plugging the wiring terminal, after a terminal plug is inserted into a wire plugging terminal, a swing arm can be manually pressed, one end of the swing arm is rotated into the inner side of the wire plugging terminal, the wire plugging terminal is attached to the outer surface of the swing arm, then an upper clamping block is inserted into a sliding block, and a roller is attached to the inner surface of the upper clamping block; the resistance generated when the upper clamping block extrudes the swing arm is reduced through the roller, the terminal plug is prevented from being pulled out of the plug wire terminal by external force, and meanwhile, the terminal plug is plugged more firmly.

Description

Technical Field

[0001] The utility model relates to the technical field of motor controllers, in particular to a motor controller with firmly plugged wiring terminals. Background Art

[0002] The motor controller is one of the core components of electric vehicles. The motor controller is mainly responsible for controlling the speed and torque of the motor, so as to realize the acceleration, deceleration and uniform speed driving of the electric vehicle. The motor controller is usually composed of an inverter, a controller, a power supply, a sensor, etc. The technical development of the motor controller has gone through a process from a DC motor controller to an AC motor controller, and then to a permanent magnet synchronous motor controller. With the continuous development of electronic technology and the continuous improvement of motor control algorithms, the performance of motor controllers is also constantly improving, and at the same time, it is developing in the direction of being more intelligent, integrated and lightweight. However, the existing motor controller terminals are prone to loosening during the running of the car, resulting in a virtual connection and causing the motor to fail. Utility Model Content

[0003] The utility model aims to provide a motor controller with firmly plugged connecting terminals, so as to solve the problem that the connecting terminals of the motor controller mentioned in the background technology are easy to loosen and cause virtual connection.

[0004] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a motor controller with firmly plugged-in wiring terminals, comprising a controller housing, a top cover is snap-fitted onto one end of the controller housing, and the side surface of the top cover is in contact with the inner surface of the controller housing, and a sealing gasket is arranged between the controller housing and the top cover, an access line is penetrated through the outer surface of one end of the controller housing, and a supporting platform is arranged on the outer surface of the end of the controller housing away from the access line, and a through hole is arranged on the end of the support platform away from the controller housing, a plug-in terminal is penetrated through the outer surface of one end of the controller housing close to the supporting platform, and a rubber gasket is arranged between the plug-in terminal and the controller housing, and a terminal plug is inserted into the inside of the plug-in terminal, and a rotating locking mechanism is arranged at one end of the plug-in terminal, and the wiring terminal is fixed by the rotating locking mechanism to prevent the terminal plug from accidentally running out, so that the terminal plug can be fixed more firmly.

[0005] Preferably, the rotating engaging mechanism includes: a swing arm, which is rotatably mounted on the outer surfaces of both sides of the terminal plug, and a roller is rotatably mounted on one end of the terminal plug away from the supporting platform, the outer surface of the plug-in terminal is fitted with the inner surface of the rubber gasket, and the side surface of the rubber gasket is fitted with the outer surface of the controller housing, and a gap is left between the controller housing and the plug-in terminal, and one end of the swing arm is fitted with the side surface of the plug-in terminal.

[0006] By adopting the above technical solution, after the upper clamping block is inserted into the guide groove, the roller can be fitted with the inner surface of the upper clamping block through the insertion of the upper clamping block, the swing arm can be pressed down and lifted, and one end of the swing arm can be clamped into the inner surface of the plug-in terminal, so that the terminal plug is fixed inside the plug-in terminal, so that the plug-in terminal can be firmly fixed and it is not easy to have a false connection.

[0007] Preferably, a guide groove is fixedly installed on the outer surface of one end of the controller housing close to the support platform, and the guide groove fits with the outer surface of one end of the support platform, and the end of the guide groove close to the controller housing is inclined.

[0008] By adopting the above technical solution, when external water flows along the outer wall of the controller housing, the water will be guided to flow out through the inclined surface of the guide groove.

[0009] Preferably, a snap-fit ​​fixing mechanism is provided between the plug-in terminal and the top cover, and the plug-in terminal is fixed to the side surface of the controller housing through the snap-fit ​​fixing mechanism.

[0010] By adopting the above technical solution, the plug-in terminal can be easily fixed on the outer surface of the controller housing, and the plug-in terminal can be conveniently fixed at the same time.

[0011] Preferably, the snap-fitting fixing mechanism includes: a guide fixing block, which is fixedly installed on one end of the plug terminal located inside the controller housing, and the end of the guide fixing block close to the top cover is inclined, and an insert block is fixedly installed on one end of the top cover located inside the controller housing, and the insert block is in contact with the side surface of the guide fixing block, and the side surface of the insert block is in contact with the inner surface of the controller housing.

[0012] By adopting the above technical solution, the terminal plug can be fixed inside the plug-in terminal and the plug-in terminal and the terminal plug can be protected to prevent the terminal plug and the plug-in terminal from being damaged by external objects.

[0013] Preferably, a sliding engagement mechanism is provided on the outer surface of one end of the support platform, which prevents rainwater from entering between the plug-in terminal and the terminal plug to cause a short circuit, and fixes the wire of the terminal plug at the same time.

[0014] The above technical solution can prevent external water from directly entering the gap between the terminal plug and the wire terminal, causing the metal contacts to be interconnected and short-circuited and damaged.

[0015] Preferably, the sliding engagement mechanism includes: a slider, the slider is fixedly mounted on one end of the support platform close to the guide groove, and the side surface of the guide groove is fitted with the side surface of the slider, an upper clamping block is slidably mounted on the outer surface of the support platform, and the upper clamping block is fitted with the outer surface of the guide groove, the slider and the upper clamping block are slidably connected, and the inner surface of the upper clamping block is fitted with the outer surface of the roller, and a buckle groove is provided at one end of the upper clamping block away from the top cover, a bottom fixing groove is fitted on the outer surface of one end of the support platform, and a top block is fixedly mounted on the outer surface of one end of the bottom fixing groove, and the top block is engaged with the buckle groove, the outer surface of the bottom fixing groove is penetrated by a fixing screw, and the fixing screw passes through the support platform, and the fixing screw and the upper clamping block are threadedly connected.

[0016] By adopting the above technical solution, when the upper clamping block is inserted into the slider and fixed on the supporting platform, the cable of the terminal plug will pass through the buckle groove. At this time, the bottom fixing groove can be inserted into the supporting platform, and the top block can be inserted into the buckle groove. Then the fixing screw is screwed into the upper clamping block, and the cable of the terminal plug is fixed by the extrusion force of the upper clamping block and the bottom fixing groove. At the same time, the upper clamping block is fixed on the supporting platform, and the cable of the terminal plug is fixed by the buckle groove and the top block, and the upper clamping block is fixed at the same time.

[0017] Compared with the prior art, the utility model has the following beneficial effects: the wiring terminal is firmly plugged into the motor controller:

[0018] 1. After inserting the terminal plug into the plug-in terminal, you can manually press the swing arm to rotate the swing arm, so that one end of the swing arm is turned into the inside of the plug-in terminal, and the plug-in terminal fits with the outer surface of the swing arm. Then, insert the upper clamping block into the inside of the slider, and fit the roller with the inner surface of the upper clamping block. The roller reduces the resistance generated by the upper clamping block squeezing the swing arm, preventing the terminal plug from being pulled out of the plug-in terminal by external force, and making the terminal plug more firmly plugged in;

[0019] 2. When the outside of the controller housing contacts water, the upper block can effectively prevent water from falling into the upper block. The inclined surface of the guide groove guides the flowing water, so that the water will not enter the plug-in terminal through the gap between the upper block and the controller housing, causing water to enter the gap between the plug-in terminal and the terminal plug and cause a short circuit, which effectively reduces the probability of short circuit due to water.

[0020] 3. By placing the sealing gasket between the controller housing and the top cover and tightening the screws, water can be effectively prevented from entering the controller housing. At the same time, when the top cover is closed, the plug block will contact the inclined surface of the guide fixing block, so that the plug-in terminal is squeezed into the controller housing. The gap between the plug-in terminal and the controller housing is removed by the elasticity of the rubber gasket, and the plug-in terminal is fixed to the side surface of the controller housing, so that the controller housing and the plug-in terminal are sealed, which is convenient for sealing and fixing the plug-in terminal and can also facilitate the inspection and replacement of the plug-in terminal;

[0021] 4. After the upper clamping block is inserted into the slider, it will be clamped and fixed on the outer surface of the support platform. At this time, the cable of the terminal plug passes through the inside of the clamping groove, and then the top block is inserted into the clamping groove to make the bottom fixing groove fit with the outer surface of the support platform. Then, the fixing screw passes through the bottom fixing groove and the support platform, and the fixing screw is screwed into the upper clamping block to fix the upper clamping block. Through the extrusion force between the upper clamping block and the bottom fixing groove, the clamping groove and the top block clamp the cable of the terminal plug, and the cable of the terminal plug is fixed to prevent the cable of the terminal plug from breaking due to bumps in the controller housing, and at the same time fix the upper clamping block. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 This is a schematic diagram of the three-dimensional structure of the controller housing and top cover of the utility model;

[0023] Figure 2 This is a schematic diagram of the cross-sectional three-dimensional structure of the top cover and the sealing gasket of the utility model;

[0024] Figure 3 This is a schematic diagram of the cross-sectional three-dimensional structure of the upper clamping block and the bottom fixing groove of the utility model;

[0025] Figure 4 This is a schematic diagram of the exploded three-dimensional structure of the top cover and the upper clamping block of the utility model;

[0026] Figure 5 This is a schematic diagram of the three-dimensional structure of the support platform and the controller housing of the utility model;

[0027] Figure 6 It is a three-dimensional structural schematic diagram of the plug-in terminal and the terminal plug of the utility model.

[0028] In the figure: 1. Controller housing; 2. Top cover; 3. Sealing gasket; 4. Support platform; 5. Guide groove; 6. Plug terminal; 7. Rubber gasket; 8. Guide fixing block; 9. Terminal plug; 10. Swing arm; 11. Roller; 12. Slider; 13. Upper clamping block; 14. Buckle groove; 15. Bottom fixing groove; 16. Top block; 17. Fixing screw; 18. Plug block. DETAILED DESCRIPTION

[0029] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0030] See also Figure 1-6 The utility model provides a technical solution: a motor controller with firmly plugged-in terminal blocks, comprising a controller housing 1, a top cover 2 is snap-fittedly installed at one end of the controller housing 1, and the side surface of the top cover 2 is in contact with the inner surface of the controller housing 1, and a sealing gasket 3 is arranged between the controller housing 1 and the top cover 2, an access line is penetrated through the outer surface of one end of the controller housing 1, and a supporting platform 4 is arranged on the outer surface of the end of the controller housing 1 away from the access line, and a through hole is arranged on the end of the support platform 4 away from the controller housing 1, a plug-in terminal 6 is penetrated through the outer surface of the end of the controller housing 1 close to the supporting platform 4, and a rubber gasket 7 is arranged between the plug-in terminal 6 and the controller housing 1, and a terminal plug 9 is inserted into the plug-in terminal 6.

[0031] By installing the sealing gasket 3 between the controller housing 1 and the top cover 2, the sealing between the controller housing 1 and the top cover 2 can be improved, and the occurrence of internal short circuit in the controller housing 1 can be reduced. At the same time, the sealing between the plug terminal 6 and the controller housing 1 can be improved by the rubber gasket 7.

[0032] A rotating locking mechanism is provided at one end of the plug-in terminal 6, which fixes the terminal through the rotating locking mechanism to prevent the terminal plug 9 from accidentally running out, so that the terminal plug 9 can be fixed more firmly. The rotating locking mechanism includes: a swing arm 10, the swing arm 10 is rotatably installed on the outer surfaces of both sides of the terminal plug 9, and the end of the terminal plug 9 away from the support platform 4 is rotatably installed with a roller 11, the outer surface of the plug-in terminal 6 is in contact with the inner surface of the rubber gasket 7, and the side surface of the rubber gasket 7 is in contact with the outer surface of the controller housing 1, and a gap is left between the controller housing 1 and the plug-in terminal 6, and one end of the swing arm 10 is in contact with the side surface of the plug-in terminal 6.

[0033] After the terminal plug 9 is inserted into the plug-in terminal 6, the swing arm 10 can be manually pressed down, and by rotating the swing arm 10, one end of the swing arm 10 can be inserted between the plug-in terminal 6 and the controller housing 1, and then the upper clamping block 13 can be inserted into the slider 12, so that the inner surface of the upper clamping block 13 fits with the outer surface of the roller 11, reducing the resistance generated when the upper clamping block 13 is inserted. By inserting the upper clamping block 13, the swing arm 10 remains engaged, so that external force cannot pull the terminal plug 9 out of the plug-in terminal 6, thereby improving the firmness of the connection between the terminal plug 9 and the plug-in terminal 6.

[0034] A guide groove 5 is fixedly installed on the outer surface of one end of the controller housing 1 close to the support platform 4, and the guide groove 5 fits with the outer surface of one end of the support platform 4, and the end of the guide groove 5 close to the controller housing 1 is inclined.

[0035] Through the inclined design between the guide groove 5 and the controller housing 1 , water flowing down through the outer surface of the controller housing 1 can be guided through the guide groove 5 .

[0036] A snap-fitting fixing mechanism is provided between the plug-in terminal 6 and the top cover 2, and the plug-in terminal 6 is fixed to the side surface of the controller housing 1 by the snap-fitting fixing mechanism. The snap-fitting fixing mechanism includes: a guide fixing block 8, which is fixedly installed at one end of the plug-in terminal 6 located inside the controller housing 1, and the end of the guide fixing block 8 close to the top cover 2 is inclined, and an insert block 18 is fixedly installed at one end of the top cover 2 located inside the controller housing 1, and the insert block 18 is in contact with the side surface of the guide fixing block 8, and the side surface of the insert block 18 is in contact with the inner surface of the controller housing 1.

[0037] When the top cover 2 is closed, the plug block 18 moves along with it, so that the inclined surface of the guide fixing block 8 fits with the side surface of the plug block 18, and the plug terminal 6 is squeezed into the controller housing 1. The gap between the plug terminal 6 and the controller housing 1 is eliminated by the rubber gasket 7, so that the plug terminal 6 is fixed inside the controller housing 1 after the top cover 2 is closed, which facilitates the inspection and replacement of the plug terminal 6 and the cable of the plug terminal 6 after opening the top cover 2.

[0038] The outer surface of one end of the support platform 4 is provided with a sliding engagement mechanism, which prevents rainwater from entering the plug-in terminal 6 and the terminal plug 9 to cause a short circuit, and fixes the wire of the terminal plug 9 at the same time. The sliding engagement mechanism includes: a slider 12, which is fixedly mounted on the support platform 4 at one end close to the guide groove 5, and the side surface of the guide groove 5 is in contact with the side surface of the slider 12, and an upper clamping block 13 is slidably mounted on the outer surface of the support platform 4, and the upper clamping block 13 is in contact with the outer surface of the guide groove 5, and the slider 12 is in contact with the upper clamping block 13. The block 13 is slidably connected, and the inner surface of the upper clamping block 13 is fitted with the outer surface of the roller 11, and a buckle groove 14 is provided at one end of the upper clamping block 13 away from the top cover 2, and a bottom fixing groove 15 is fitted on the outer surface of one end of the support platform 4, and a top block 16 is fixedly installed on the outer surface of one end of the bottom fixing groove 15, and the top block 16 is snapped with the buckle groove 14, and the outer surface of the bottom fixing groove 15 is penetrated by a fixing screw 17, and the fixing screw 17 passes through the support platform 4, and the fixing screw 17 is threadedly connected to the upper clamping block 13.

[0039] After the upper clamping block 13 is inserted into the slider 12, the upper clamping block 13 will stay on the supporting platform 4, and then the cable of the terminal plug 9 will be passed through the buckle groove 14, and the top block 16 will be inserted into the buckle groove 14, so that the outer surface of the bottom fixing groove 15 is fitted with the buckle groove 14, and then the fixing screw 17 is passed through the bottom fixing groove 15 and the supporting platform 4, and the fixing screw 17 is screwed into the interior of the upper clamping block 13, and the buckle groove 14 and the top block 16 clamp and fix the cable of the terminal plug 9 through the extrusion force between the upper clamping block 13 and the bottom fixing groove 15, and at the same time, the upper clamping block 13 is fixed on the supporting platform 4, so as to improve the service life of the terminal plug 9 and prevent the cable of the terminal plug 9 from shaking and causing the internal wiring to break when the controller housing 1 moves and bumps.

[0040] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A motor controller with firmly plugged-in terminals, comprising a controller housing (1), a top cover (2) being snap-fitted onto one end of the controller housing (1), the side surface of the top cover (2) being in contact with the inner surface of the controller housing (1), and a sealing gasket (3) being arranged between the controller housing (1) and the top cover (2), an access line being passed through the outer surface of one end of the controller housing (1), a support platform (4) being arranged on the outer surface of the end of the controller housing (1) away from the access line, and a through hole being arranged on the end of the support platform (4) away from the controller housing (1), a plug-in terminal (6) being passed through the outer surface of the end of the controller housing (1) close to the support platform (4), a rubber gasket (7) being arranged between the plug-in terminal (6) and the controller housing (1), and a terminal plug (9) being inserted into the interior of the plug-in terminal (6), characterized in that: One end of the plug-in terminal (6) is provided with a rotating locking mechanism, and the connecting terminal is fixed by the rotating locking mechanism to prevent the terminal plug (9) from accidentally running out, so that the terminal plug (9) can be fixed more firmly.

2. A motor controller with firmly plugged-in terminals according to claim 1, characterized in that: The rotating engaging mechanism comprises: a swing arm (10), the swing arm (10) being rotatably mounted on the outer surfaces of both sides of the terminal plug (9), and a roller (11) being rotatably mounted on one end of the terminal plug (9) away from the support platform (4), the outer surface of the plug-in terminal (6) being in contact with the inner surface of the rubber gasket (7), and the side surface of the rubber gasket (7) being in contact with the outer surface of the controller housing (1), and a gap being left between the controller housing (1) and the plug-in terminal (6), and one end of the swing arm (10) being in contact with the side surface of the plug-in terminal (6).

3. A motor controller with firmly plugged-in terminals according to claim 1, characterized in that: A guide groove (5) is fixedly mounted on the outer surface of one end of the controller housing (1) close to the support platform (4), and the guide groove (5) fits the outer surface of one end of the support platform (4), and the end of the guide groove (5) close to the controller housing (1) is inclined.

4. A motor controller with firmly plugged-in terminals according to claim 1, characterized in that: A snap-fit ​​fixing mechanism is provided between the plug-in terminal (6) and the top cover (2), and the plug-in terminal (6) is fixed to the side surface of the controller housing (1) via the snap-fit ​​fixing mechanism.

5. A motor controller with firmly plugged-in terminals according to claim 4, characterized in that: The snap-fit ​​fixing mechanism comprises: a guide fixing block (8), the guide fixing block (8) being fixedly mounted on one end of the plug-in terminal (6) located inside the controller housing (1), and the end of the guide fixing block (8) close to the top cover (2) is inclined, and an insert block (18) is fixedly mounted on one end of the top cover (2) located inside the controller housing (1), and the insert block (18) is in contact with the side surface of the guide fixing block (8), and the side surface of the insert block (18) is in contact with the inner surface of the controller housing (1).

6. A motor controller with firmly plugged-in terminals according to claim 1, characterized in that: A sliding engagement mechanism is provided on the outer surface of one end of the support platform (4), and the sliding engagement mechanism prevents rainwater from entering between the plug-in terminal (6) and the terminal plug (9) to cause a short circuit, while fixing the wire of the terminal plug (9).

7. A motor controller with firmly plugged-in terminals according to claim 6, characterized in that: The sliding engagement mechanism comprises: a slider (12), the slider (12) being fixedly mounted on one end of the support platform (4) close to the guide groove (5), and the side surface of the guide groove (5) being in contact with the side surface of the slider (12); an upper clamping block (13) being slidably mounted on the outer surface of the support platform (4), and the upper clamping block (13) being in contact with the outer surface of the guide groove (5); the slider (12) and the upper clamping block (13) being slidably connected, and the inner surface of the upper clamping block (13) being in contact with the outer surface of the roller (11); A buckle groove (14) is formed at one end of the upper clamping block (13) away from the top cover (2); a bottom fixing groove (15) is fitted on the outer surface of one end of the support platform (4); a top block (16) is fixedly mounted on the outer surface of one end of the bottom fixing groove (15); the top block (16) is buckled with the buckle groove (14); a fixing screw (17) penetrates the outer surface of the bottom fixing groove (15); the fixing screw (17) passes through the support platform (4); and the fixing screw (17) is threadedly connected to the upper clamping block (13).

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