End cover for electric vehicle

Abstract

The utility model discloses an end cover for an electric vehicle, which relates to the technical field of electric vehicles and comprises a first end cover and a second end cover, a plurality of first fixing blocks and second fixing blocks are symmetrically arranged on the outer side of the first end cover and the outer side of the second end cover respectively, and through holes are formed in the corresponding positions of the first fixing blocks and the second fixing blocks. By means of the connecting mechanism, the push block can be pushed to drive the two clamping rods to move in a transmission mode so that the two clamping rods can be moved out of the clamping grooves, limitation on the fixing pins can be relieved, the first end cover and the second end cover can be conveniently and rapidly disassembled, and the disassembly efficiency is improved. The internal motor is convenient to maintain and repair in the later period, the working efficiency is improved, and the practicability is higher; through the arrangement of the copper sheet, the diversion trench and the opening, heat in the end cover can be transmitted and dissipated to the outer side, air can flow in the copper sheet to drive the copper sheet to absorb the heat, and the heat dissipation effect on the heat in the end cover is accelerated.

Description

TECHNICAL FIELD

[0001] The utility model relates to electric vehicle technical field, concretely is an end cover for electric vehicle. BACKGROUND

[0002] With the continuous rise of the use of electric vehicles, it frequently encounters various complex environments in daily use. Especially in rainy days, mud and water are easy to enter the motor, so the sealing between the motor end cover and the wheel installed with the motor is crucial.

[0003] The patent with the publication number CN213305113U discloses an end cover of a hub motor for electric vehicle. The end cover is composed of a first end cover and a second end cover. The first end cover is provided with an arc-shaped sliding groove on one side of the outer wall, and the second end cover is provided with symmetrically distributed sliding blocks welded on one side of the outer wall. The two can be slidably matched. At the same time, the first end cover is provided with an annular sealing groove on one side of the outer wall, and the second end cover is provided with an annular sealing strip bonded on one side of the outer wall. In addition, the side walls of the first end cover and the second end cover are both welded with fixed blocks distributed at equal distances, and fixed holes are opened in the middle of the outer walls of the side walls away from each other. This design adopts two end covers that are matched by being clamped with each other on the overall structure of the end cover, which greatly facilitates the later maintenance and disassembly. At the same time, the sliding blocks and the arc-shaped sliding groove provided on the side wall of the end cover in contact can effectively prevent the end cover from loosening; and the double-layer sealing layer on the side in contact significantly enhances the sealing property of the end cover, effectively prevents the motor from being waterlogged, and prolongs the service life of the motor.

[0004] However, the end cover has obvious defects when it is disassembled and maintained in the later period. Since the end cover is connected and fixed by a plurality of bolts, the process of disassembling these bolts is complicated in actual operation, which not only consumes a lot of time, but also reduces the work efficiency, and the practicability in the actual application scene is greatly discounted. UTILITY MODEL CONTENTS

[0005] The utility model aims at providing an end cover for electric vehicle to solve the problems in the prior art.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical scheme: an end cover for electric vehicle, comprising an end cover one and an end cover two, a plurality of fixed blocks one and fixed blocks two are symmetrically arranged on the outer sides of the end cover one and the end cover two respectively, through holes are arranged in the corresponding positions of the fixed blocks one and the fixed blocks two, the fixed blocks one and the fixed blocks two are connected by a connecting mechanism, a plurality of copper sheets are installed through one side wall of the end cover one and the end cover two, a positioning device for fixing the motor is arranged on the inner sides of the end cover one and the end cover two, the connecting mechanism comprises a fixed pin, the fixed pin penetrates the through holes on the fixed blocks one and the fixed blocks two, and a nut is sleeved on one end of the fixed pin.

[0007] Further, the connecting mechanism further comprises a push block, a cavity is formed in the second fixed block, the push block is arranged on one side of the cavity, and one end of the push block extends to the outside of the second fixed block, connecting rods are movably connected to the symmetric positions of the bottom of the push block, clamping rods are movably connected to the lower ends of the connecting rods, the clamping rods are clamped into the clamping grooves symmetrically formed on the outer wall of the fixed pin, and the bottom of the push block is fixedly connected to the inner wall of the cavity through a spring, so that the end cover one and the end cover two can be conveniently and quickly disassembled, the internal motor is conveniently maintained and repaired, the working efficiency is improved, and the practicality is higher.

[0008] Further, two limiting grooves are formed in the inner wall of the cavity and communicate with the through holes, the limiting grooves are matched with the clamping rods, a sliding rod is arranged on one side of the cavity, and the two ends of the sliding rod penetrate through the two clamping rods, so that the clamping rods are limited and guided.

[0009] Further, a plurality of external threads matched with the nuts are formed on the outer wall of the end of the first fixed block, and the nuts are threadedly connected to one end of the fixed pin, so that the position of the nut can be adjusted as required, and the connecting and fixing effect between the end cover one and the end cover two is adjusted.

[0010] Further, the copper sheet is symmetrically provided with openings at one end of the outer side of the end cover one, a flow guide groove is formed in the copper sheet and communicates with the two openings, and the flow guide groove is U-shaped, so that air flows in the copper sheet, and the heat absorbed by the copper sheet can be taken away, and the heat dissipation effect is enhanced.

[0011] Further, the push block is a T-shaped cylindrical structure, and the two ends of the connecting rod are hingedly connected to the push block and the clamping rod, so as to transmit power to drive the two clamping rods to move.

[0012] Compared with the prior art, the utility model has the advantages that:

[0013] 1、 through the connecting mechanism, the two clamping rods can be driven to move by pushing the push block, so that the clamping rods are moved out of the clamping grooves, the limitation of the fixed pin is removed, the end cover one and the end cover two can be conveniently and quickly disassembled, the internal motor is conveniently maintained and repaired in the later stage, the working efficiency is improved, and the practicality is higher;

[0014] 2、 through the arrangement of the copper sheet, the flow guide groove and the opening, the heat in the end cover can be transmitted and dissipated to the outside, and air can flow in the copper sheet, so that the heat absorbed by the copper sheet is taken away, and the heat dissipation of the heat in the end cover is accelerated. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 is the overall structure schematic view of the utility model;

[0016] Figure 2Is the structure schematic view between the copper sheet and the flow guide groove of the utility model;

[0017] Figure 3 Is the structure schematic view between the fixed pin and the fixed block two of the utility model;

[0018] Figure 4 Is the structure schematic view between the clamping rod, the push block and the slide rod of the utility model.

[0019] Marked number in the drawing: 1, end cover one;2, end cover two;3, fixed block one;4, fixed block two;5, copper sheet;6, fixed pin;7, nut;8, clamping rod;9, push block;10, connecting rod;11, spring;12, slide rod;13, chamber;14, limit slot;15, clamping slot;16, flow guide groove;17, opening. DETAILED DESCRIPTION

[0020] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.

[0021] Embodiment: as Figure 1 - Figure 4The utility model provides a technical scheme: an end cover for electric vehicle, including end cover one 1, end cover two 2, end cover one 1 and end cover two 2 outside are symmetrically equipped with a plurality of fixed block one 3 and fixed block two 4, and the corresponding position of fixed block one 3 and fixed block two 4 are equipped with through -hole, and fixed block one 3 and fixed block two 4 are connected through connecting mechanism, and the lateral wall of end cover one 1 and end cover two 2 is all equipped with a plurality of copper sheet 5, and the inside of end cover one 1 and end cover two 2 is equipped with the positioning device for fixed motor, and in the example, the positioning device contains L type fixed block, shock absorber spring, arc clamping plate, and its specific structure and shape and use mode method can refer to the reference file proposed above, and the connecting mechanism includes fixed pin 6, and the through -hole of fixed pin 6 is connected through fixed block one 3 and fixed block two 4, and the one end of fixed pin 6 is equipped with the nut 7 of connecting, and in the example, the connecting mechanism still includes push block 9, and the inside of fixed block two 4 is equipped with chamber 13, and push block 9 is arranged in one side in chamber 13, and one end of push block 9 extends to the outside of fixed block two 4, and the bottom of push block 9 is symmetrically connected with connecting rod 10, and the lower end of connecting rod 10 is movably connected with clamping rod 8, and one side of clamping rod 8 is clamped into the clamping groove 15 symmetrically set in the outer wall of fixed pin 6, and the middle position of the bottom of push block 9 is fixedly connected with the inner wall of chamber 13 through spring 11, and the setting of connecting mechanism can conveniently and quickly dismantle end cover one 1 and end cover two 2, so as to conveniently maintain and repair the motor in the inside, improve work efficiency, and the practicality is stronger, and in the example, the inner wall of chamber 13 is equipped with two limit grooves 14 communicated with the through -hole, and the limit groove 14 is adapted to clamping rod 8, and one side in chamber 13 is equipped with slide rod 12, and the both ends of slide rod 12 are respectively penetrated two clamping rods 8, so as to limit and guide clamping rod 8, and in the example, the outer thread of fixed pin 6 is equipped with a plurality of the outer thread of nut 7 close to the outer wall of one end of fixed block one 3, and the one end of fixed pin 6 is screwed with nut 7, so as to adjust the position of nut 7 according to the need, to adjust the connecting and fixing effect between end cover one 1 and end cover two 2, and in the example, push block 9 is the cylindrical structure of T shape, and the both ends of connecting rod 10 are respectively hinged with push block 9 and clamping rod 8, so as to transmit power and drive two clamping rods 8 to move.

[0022] In the example, the one end of the outer side of copper sheet 5 is symmetrically provided with opening 17, the inside of copper sheet 5 is provided with flow guide groove 16, and the flow guide groove 16 is communicated with two openings 17, and the flow guide groove 16 is U-shaped, so that the air flows in the copper sheet 5, thereby the heat absorbed by the copper sheet 5 can be taken away, and the heat dissipation effect is accelerated, and in the process of use, the heat dissipation of the copper sheet 5 is also accelerated.

[0023] The utility model discloses a working principle: when using, when using the end cover of electric vehicle wheel hub motor, first, motor clamping is fixed in the L type fixed block inside in positioning device, and makes its transmission shaft to pass through the corresponding position on end cover no. 1 or end cover no. 2, then utilize the connecting mechanism to connect fixed block no. 3 and fixed block no. 4 on end cover no. 1 and end cover no. 2, and when fixed block no. 3 and fixed block no. 4 connect, the shell press push block 9 moves, and push block 9 pushes the connecting connecting rod 10, and push block 9 will extrude spring 11, and connecting rod 10 will push the connecting clamping rod 8 along slide rod 12 to the opposite outside, and make slide rod 12 slide out of limiting groove 14, then one end of fixed pin 6 passes through the through-hole on fixed block no. 3 and fixed block no. 4, then releases the push force applied to push block 9, and push block 9 resets under the elastic force of spring 11 and drives connecting rod 10 to pull clamping rod 8 reset, and makes clamping rod 8 clamp into the clamping groove 15, thereby limiting the fixing of fixed pin 6, realizes the connecting and fixing between fixed block no. 3 and fixed block no. 4, then can twist the nut 7 according to the need, adjusts the movement of nut 7, thereby makes nut 7 extrude fixed block no. 3 and fixed block no. 4 closely, improves its connecting and fixing effect, and when the motor needs to be disassembled for maintenance, the above steps can be repeated, push block 9 is pushed, and then drives clamping rod 8 to move out of clamping groove 15, and the limitation of fixed pin 6 is released, then fixed pin 6 can be pulled out, and the disassembly between end cover no. 1 and end cover no. 2 is completed, so as to carry out the overhaul, convenient to use, and improve work efficiency, and when the motor rotates quickly, the temperature of the motor itself will rise, and after the temperature of the end cover inside rises, copper sheet 5 will export the heat, and the copper sheet 5 outside the end cover will accelerate the cooling due to the quick rotation, and part of the air will enter the flow guide groove 16 through the opening 17 on one side and then flow out through the opening 17 on the other side, so that the air flows in the inner wall of copper sheet 5, thereby taking away the heat absorbed on copper sheet 5, accelerating the heat dissipation, and the practicability is stronger.

[0024] It is obvious for those skilled in the art that the utility model is not limited to the details of the above-mentioned exemplary embodiments, and can be realized in other specific forms without departing from the spirit or basic characteristics of the utility model. Therefore, no matter from which point, the embodiments should be regarded as exemplary and non-restrictive, and the scope of the utility model is defined by the appended claims instead of the above description, and therefore all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the utility model. Any figure reference in the claims should not be regarded as limiting the involved claims.

Claims

1. An end cover for an electric vehicle comprising an end cover one (1), an end cover two (2), characterized in that: The outer side of the end cover one (1) and the end cover two (2) are respectively provided with a plurality of fixed blocks one (3) and fixed blocks two (4), the fixed blocks one (3) and the fixed blocks two (4) are provided with through holes in the corresponding positions, the fixed blocks one (3) and the fixed blocks two (4) are connected through a connecting mechanism, the side wall of the end cover one (1) and the end cover two (2) is provided with a plurality of copper sheets (5), the inner side of the end cover one (1) and the end cover two (2) is provided with a positioning device for fixing the motor, the connecting mechanism comprises a fixed pin (6), and the fixed pin (6) penetrates the through holes in the fixed blocks one (3) and the fixed blocks two (4), and the one end of the fixed pin (6) is sleeved with a nut (7).

2. The end cover for an electric vehicle of claim 1, wherein: The connecting mechanism further comprises a push block (9), the fixed blocks two (4) are internally provided with a cavity (13), the push block (9) is arranged on one side in the cavity (13), and one end of the push block (9) extends to the outer side of the fixed blocks two (4), the bottom of the push block (9) is movably connected with connecting rods (10) at the symmetrical positions, and the lower ends of the connecting rods (10) are movably connected with clamping rods (8), one side of the clamping rod (8) is clamped into a clamping groove (15) symmetrically formed in the outer wall of the fixed pin (6), and the bottom of the push block (9) is fixedly connected with the inner wall of the cavity (13) through a spring (11).

3. The end cover for an electric vehicle of claim 2, wherein: The inner wall of the cavity (13) is provided with two limiting grooves (14) in communication with the through holes, and the limiting grooves (14) are matched with the clamping rods (8), one side in the cavity (13) is provided with a sliding rod (12), and the two ends of the sliding rod (12) penetrate the two clamping rods (8) respectively.

4. The end cover for an electric vehicle of claim 1, wherein: The outer wall of the one end of the fixed pin (6) close to the fixed blocks one (3) is provided with a plurality of external threads matched with the nuts (7), and the nuts (7) are threadedly connected with the one end of the fixed pin (6).

5. The end cover for an electric vehicle of claim 1, wherein: The outer end of the copper sheet (5) located on the outer side of the end cover one (1) is symmetrically provided with an opening (17), the inner side of the copper sheet (5) is provided with a flow guide groove (16), and the flow guide groove (16) is in communication with the two openings (17), and the flow guide groove (16) is U-shaped.

6. The end cover for an electric vehicle of claim 2, wherein: The push block (9) is a T-shaped cylindrical structure, and the two ends of the connecting rod (10) are hingedly connected with the push block (9) and the clamping rod (8) respectively.

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