Novel energy automobile permanent magnet direct current motor capable of damping

Abstract

The invention discloses a novel energy automobile permanent magnet direct current motor capable of damping, and relates to the technical field of new energy automobile motors, the novel energy automobile permanent magnet direct current motor comprises a main shell and a main body motor, the inner side of the main shell is provided with two groups of buffer assemblies which are symmetrical up and down, and each buffer assembly comprises two groups of sleeves which are fixedly connected to the inner side wall of the main shell; each set of sleeves comprises two sleeves, four first springs which are vertically symmetrical are fixedly connected to the inner side wall of the main shell, the four first springs are all located in the sleeves, and buffer columns are fixedly connected to the ends, away from the ends connected with the main shell, of the first springs. The first spring can recover to the non-deformation state more quickly by reducing the shaking amplitude of the main body motor, then the shaking time of the main body motor can be shortened, resonance caused by continuous shaking of the main body motor is avoided, and the situation that abnormal noise is generated in a compartment is reduced.

Description

Technical Field

[0001] The present invention relates to the technical field of new energy automobile motors, and in particular to a new energy automobile permanent magnet direct current motor capable of damping vibration. Background Art

[0002] At present, with the gradual popularization of new energy vehicles, the number of new energy vehicles is huge. Compared with existing fuel vehicles, new energy vehicles use motors to energize permanent magnet DC motors, and use permanent magnet DC motors to drive the wheels to rotate to achieve vehicle driving. However, in the process of driving, it is inevitable that the car will drive on bumpy roads, which will cause vibration to the motor. In the long run, the installation of the motor will become loose, which will affect the stability of the motor-driven vehicle.

[0003] There are related motor damping devices in the prior art. For example, a damping motor is disclosed in the patent with publication number CN113037000A. The device adds springs in different directions of the motor to perform buffering and damping in multiple directions. However, there are still the following disadvantages: The motor is directly damped by the spring. The elastic deformation of the spring will cause the motor to shake up and down. When the car is driving on a smooth road, the motor will continue to shake due to the elastic deformation of the spring. In addition, if the spring has a large elastic deformation, it will take a longer time for the spring to recover to the undeformed state, which will further cause the motor to shake for a longer time during the driving process. The continuous shaking of the motor will cause unstable motor drive, which will lead to unstable driving of the car. At the same time, the continuous shaking of the motor will cause resonance of the car and cause abnormal noise in the car. Summary of the invention

[0004] In order to solve the above technical problems, the present invention provides a new type of energy vehicle permanent magnet DC motor with vibration reduction function.

[0005] The technical solution is as follows: A new type of energy vehicle permanent magnet DC motor capable of shock absorption comprises a main housing and a main motor, wherein two groups of buffer components are arranged symmetrically in the upper and lower sides of the main housing; The buffer assembly includes two groups of sleeves fixedly connected to the inner wall of the main shell, each group of the sleeves is provided with two, the inner wall of the main shell is fixedly connected with four springs 1 symmetrically in the upper and lower directions, the four springs 1 are all located inside the sleeve, the ends of the springs 1 away from the connection with the main shell are fixedly connected with buffer columns, the ends of the buffer columns close to the springs 1 slide inside the sleeve, the buffer columns are divided into two groups by four, the ends of the two groups of buffer columns away from the springs 1 are fixedly connected with buffer plates, and the surfaces of the two buffer plates close to each other are fixedly connected to the main motor by bolts; A shock absorbing assembly is provided on the main shell body, and the shock absorbing assembly includes two fixing sleeves which are sleeved on one end of the main motor away from its output shaft, the two fixing sleeves are fastened to the outer surface of the main motor by bolts, an extension plate is fixedly connected to one side of the fixing sleeve away from the main motor, two upper and lower symmetrical limit rods are fixedly connected to one end of the extension plate away from the fixing sleeve, and the ends of the two limit rods away from the extension plate are fixedly connected to the limit plate, a movable groove is provided on the inner surface of the main shell body close to the extension plate, one end of the extension plate away from the fixing sleeve slides inside the movable groove, and limiting grooves are provided on the upper and lower sides of the main shell body close to the movable groove.

[0006] Furthermore, two through holes for sliding of two limiting rods are provided on one side of the two limiting grooves close to the movable groove, and the limiting plates slide inside the limiting grooves, and non-Newtonian fluid is stored inside the limiting grooves.

[0007] Furthermore, both ends of the two buffer plates are provided with fastening assemblies, and the fastening assemblies include two fixing frames fixedly connected to the two ends of the buffer plates, and the internal rotation of the fixing frames is connected to a magnet plate 1, and a torsion spring is fixedly connected between the rotation connection between the magnet plate 1 and the fixing frames, and the inner side surface of the main shell is fixedly connected to two groups of magnet plates 2 corresponding to the position of the magnet plate 1, and a total of four magnet plates are arranged in the two groups.

[0008] Furthermore, each of the fixing frames is composed of two bent rods, and the magnetic poles of the opposite surfaces of the magnet plate 1 and the magnet plate 2 are opposite.

[0009] Furthermore, the fastening assembly also includes two spring grooves opened on both sides of the magnet plate one, a spring two is fixedly connected inside the spring groove, an end of the spring two away from the spring groove is fixedly connected to a clamping block, and an end of the clamping block close to the spring two slides inside the spring groove, two bending rods of the fixed frame are provided with two sliding grooves on the sides close to each other, and symmetrical clamping grooves are provided in the middle of the sides close to each other, two movable rods are slidably connected inside the two sliding grooves, and two movable rods are provided with pushing grooves on the sides close to each other, and the two movable rods are fixedly connected to a contact plate at one end of the two movable rods close to the main motor, and a spring three is fixedly connected between the end of the two movable rods away from the contact plate and the outer surface of the fixed frame.

[0010] Furthermore, the bottom of the card block away from the spring 2 is set as an inclined surface, the horizontal cross-section of the slide groove is cross-shaped, the end of the card block away from the spring 2 is in conflict with the top groove wall of the card block, the horizontal cross-section of the movable rod is adapted to the shape of the slide groove, the groove top of the pushing groove is set as an inclined surface, the end of the card block away from the spring 2 is in conflict with the top inclined surface of the pushing groove, and the end of the contact plate away from the movable rod is in conflict with the outer surface of the main motor.

[0011] Furthermore, a protection component is provided on the buffer plate, and the protection component includes a sleeve rod clamped on the edge of the buffer plate, the bottom of the sleeve rod is fixedly connected to an airbag, the end of the airbag away from the sleeve rod is fixedly connected to a connecting plate, both ends of the outer surface of the sleeve rod close to the airbag are fixedly connected to multi-section telescopic rods, the telescopic ends of the two multi-section telescopic rods away from the sleeve rod are fixedly connected to both ends of the connecting plate, the outer surface of the sleeve rod and located inside the airbag is fixedly connected to a nitrogen generator, and both sides of the nitrogen generator are fixedly connected to igniters.

[0012] Furthermore, the nitrogen generator consists of a shell and a sodium azide block.

[0013] As described above, the beneficial effects of the new energy vehicle permanent magnet DC motor capable of vibration reduction in the present invention are as follows: By reducing the shaking amplitude of the main motor, the spring can be restored to the undeformed state more quickly, thereby shortening the shaking time of the main motor, avoiding the resonance caused by the continuous shaking of the main motor, and reducing the abnormal noise generated in the car; When the buffer plate is shaken upward, the magnet plate 1 at the bottom and the corresponding magnet plate 2 are attracted to each other, which in turn attracts the main motor to move downward. On the contrary, when the buffer plate is shaken downward, the magnet plate 1 at the top and the corresponding magnet plate 2 are attracted to each other, which in turn attracts the main motor to move upward. This reciprocating process offsets the shaking of the main motor and achieves a shock-absorbing effect. By flipping the magnet plate 1, the magnet plate 1 and the magnet plate 2 are transformed into the same magnetic poles on the opposite sides. According to the principle of like poles repelling each other, the magnet plate 2 will repel the magnet plate 1. After being repelled by the magnet plate 2, the magnet plate 1 will push the buffer plate that fits with it to move toward the side close to the main motor, thereby preventing the main motor and the buffer plate bolts from rusting and loosening. After the motor becomes loose, it can be stabilized in time to prevent the main motor from being loosened, further avoiding the instability of the main motor in the process of driving the car, and reducing the influence of the looseness of the main motor 11 on the normal driving and control of the vehicle; By covering the two sides of the main motor with airbags, the main motor can be protected. After the main motor is hit and falls, the impact force of the main motor colliding with other parts of the car is reduced, and the damage after the car collision is reduced. In addition, the possibility of the main motor invading the car's cab due to a collision can be reduced, thereby avoiding the main motor posing a threat to the driver's driving safety. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a three-dimensional schematic diagram of the overall structure of the present invention; Figure 2It is a sectional stereoscopic schematic diagram of the overall structure of the present invention; Figure 3 It is a three-dimensional schematic diagram of the main motor and buffer plate and other components of the present invention; Figure 4 It is a three-dimensional schematic diagram of components such as the movable groove, the limit groove and the movable rod of the present invention; Figure 5 It is a three-dimensional schematic diagram of the components such as the magnet plate 1 and the fixing frame of the present invention; Figure 6 For the present invention Figure 5 A schematic diagram of the structure enlargement in the middle; Figure 7 It is a three-dimensional schematic diagram of components such as a buffer plate and a fixing frame of the present invention; Figure 8 For the present invention Figure 7 A three-dimensional schematic diagram of the structure at B in the middle; Fig. 9 It is a three-dimensional schematic diagram of the fixing frame, the movable rod and the contact plate of the present invention; Fig.10 For the present invention Fig. 9 A magnified schematic diagram of the structure at C in the middle; Fig.11 It is a three-dimensional schematic diagram of the internal structure of the protection component of the present invention.

[0015] Among them, the accompanying drawings in the present invention are: 1. Main housing; 11. Main motor; Buffer assembly: 21, sleeve; 22, spring 1; 23, buffer column; 24, buffer plate; Fastening components: 31, fixing frame; 32, magnet plate 1; 33, torsion spring; 34, spring slot; 35, spring 2; 36, clamping block; 37, slide slot; 371, clamping slot; 38, movable rod; 381, pushing slot; 39, spring 3; 310, contact plate; 311, magnet plate 2; Protection components: 41, sleeve rod; 42, air bag; 43, connecting plate; 44, multi-section telescopic rod; 45, nitrogen generator; 46, igniter; Shock absorption assembly: 51, fixed sleeve; 52, extension plate; 53, limit rod; 54, limit plate; 55, movable groove; 56, limit groove. DETAILED DESCRIPTION

[0016] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0017] The embodiments provided by the present invention will be described in detail below: like Figures 1 to 4 As shown, a new type of energy vehicle permanent magnet DC motor capable of shock absorption comprises a main housing 1 and a main motor 11, wherein two groups of buffer components symmetrically arranged in an upper and lower direction are provided on the inner side of the main housing 1; The buffer assembly includes two groups of sleeves 21 fixedly connected to the upper and lower inner walls of the main housing 1, each group of the sleeves 21 is provided with two, the inner wall of the main housing 1 is fixedly connected with four springs 22 symmetrically arranged in the upper and lower directions, the four springs 22 are all located inside the sleeve 21, the end of the spring 22 away from the connection with the main housing 1 is fixedly connected with a buffer column 23, the end of the buffer column 23 close to the spring 22 slides inside the sleeve 21, four buffer columns 23 are provided, two of which form a group, the ends of the two groups of buffer columns 23 away from the spring 22 are fixedly connected with a buffer plate 24, and the sides of the two buffer plates 24 close to each other are fixedly connected to the outer wall of the main motor 11 by bolts; The main housing 1 is provided with a shock absorbing assembly for reducing the shaking amplitude of the buffer assembly. The shock absorbing assembly includes two fixing sleeves 51 which are sleeved on the end of the main motor 11 away from its output shaft. The two fixing sleeves 51 are fastened to the outer surface of the main motor 11 by bolts. An extension plate 52 is fixedly connected to the side of the fixing sleeve 51 away from the main motor 11. The end of the extension plate 52 away from the fixing sleeve 51 is fixedly connected to two upper and lower symmetrical limiting rods 53. The ends of the two limiting rods 53 away from the extension plate 52 are fixedly connected to the limiting rods 53. A positioning plate 54, a movable groove 55 is provided on the inner surface of the main shell 1 close to the extension plate 52, and the end of the extension plate 52 away from the fixed sleeve 51 slides inside the movable groove 55, and limiting grooves 56 are provided on the upper and lower sides of the main shell 1 close to the movable groove 55. Two through holes for sliding two limiting rods 53 are provided on one side of the two limiting grooves 56 close to the movable groove 55, and the limiting plate 54 slides inside the limiting groove 56, and non-Newtonian fluid is stored inside the limiting groove 56, and the limiting plate 54 is inserted in the non-Newtonian fluid.

[0018] like Figures 1 to 3 , Figure 5 and Figure 6As shown, both ends of the two buffer plates 24 are provided with fastening components for resisting against loosening of the bolts, and the fastening components include two fixing frames 31 fixedly connected to the two ends of the buffer plates 24, each of the fixing frames 31 is composed of two bent rods, and the internal rotation connection of the fixing frames 31 is connected with a magnet plate 32, and a torsion spring 33 is fixedly connected between the rotation connection between the magnet plate 32 and the fixing frame 31, and the inner side surface of the main shell 1 is fixedly connected with two groups of magnet plates 311 corresponding to the position of the magnet plate 1 32, and the two groups of magnet plates 311 are provided with four in total, and the magnetic poles of the magnet plate 1 32 and the magnet plate 2 311 facing each other are opposite, which are used for mutual magnetic attraction, and the upper and lower surfaces of the magnet plate 1 32 have different magnetic poles.

[0019] like Figures 5 to 10 As shown, the fastening assembly also includes two spring slots 34 opened on both sides of the magnet plate 1 32, and the spring 2 35 is fixedly connected inside the spring slot 34. The end of the spring 2 35 away from the spring slot 34 is fixedly connected to a clamping block 36, and the end of the clamping block 36 close to the spring 2 35 slides inside the spring slot 34, as shown in FIG. Figure 7 As shown, the bottom of the block 36 away from the spring 2 35 is set as an inclined surface, which is used to enable the block 36 to slide into the spring groove 34 after the inclined surface of the block 36 is interfered. Two sliding grooves 37 are provided on the side where the two bending rods of the fixing frame 31 are close to each other. The horizontal cross-section of the sliding groove 37 is cross-shaped. Symmetrical slots 371 are provided in the middle of the side where the two sliding grooves 37 are close to each other. The end of the block 36 away from the spring 2 35 is interfered with the top slot wall of the slot 371. Two movable rods 38 are slidably connected inside the two sliding grooves 37. The horizontal cross-section of the movable rod 38 is adapted to the shape of the sliding groove 37, which is used to stabilize the sliding of the movable rod 38 in the sliding groove 37. The side where the two movable rods 38 are close to each other is provided with a pushing groove 381. Fig.10 As shown, the top of the pushing groove 381 is set as an inclined surface, which is used to push the block 36 against the block 36, and the end of the block 36 away from the spring 2 35 is in contact with the top inclined surface of the pushing groove 381, and the ends of the two movable rods 38 close to the main motor 11 are jointly fixedly connected with a contact plate 310, and the ends of the contact plate 310 away from the movable rods 38 are in contact with the outer surface of the main motor 11, and a spring 39 is fixedly connected between the ends of the two movable rods 38 away from the contact plate 310 and the outer surface of the fixed frame 31.

[0020] It should be noted that the outer surface of the existing main motor 11 is provided with a hollow portion, which can be specifically referred to Figure 1 Therefore, the abutment plate 310 abuts against the hollow portion, and the buffer plate 24 is fixed to the outside of the main motor 11 , and both are in contact with the outer surface of the main motor 11 .

[0021] like Figure 5 , Fig. 9 and Fig.11 As shown, the buffer plate 24 is provided with a protection component for protecting the main motor 11, and the protection component includes a sleeve rod 41 clamped on the edge of the buffer plate 24, as shown in FIG. Fig.11 As shown, an airbag 42 is fixedly connected to the bottom of the sleeve rod 41, and a connecting plate 43 is fixedly connected to the end of the airbag 42 away from the sleeve rod 41. Multi-section telescopic rods 44 are fixedly connected to both ends of the outer surface of the sleeve rod 41 close to the airbag 42, and the telescopic ends of the two multi-section telescopic rods 44 away from the sleeve rod 41 are fixedly connected to the two ends of the connecting plate 43. A nitrogen generator 45 is fixedly connected to the outer surface of the sleeve rod 41 and located inside the airbag 42. The nitrogen generator 45 consists of an outer shell and a sodium azide block. Ignitors 46 are fixedly connected to both sides of the outer shell of the nitrogen generator 45. The ignitor 46 is externally connected to a controller for igniting the sodium azide block of the nitrogen generator 45.

[0022] In combination with the above preferred embodiments, the following is the entire working process and working principle of the above embodiments: The initial state is: Magnet plate one 32 is not flipped at this time, and its magnetic poles are opposite to those of magnet plate two 311, and are located inside the two bent rods of the fixing frame 31. At this time, the torsion spring 33 is in a tightened state, and the spring two 35 is not compressed. The spring two 35 causes the upper surface of the block 36 to abut against the groove wall of the groove 371, and the contact plate 310 abuts against the main motor 11. The contact plate 310 causes the spring three 39 to be in a stretched state through the movable rod 38. At this time, the pushing groove 381 and the block 36 are in a horizontal overlapping position, the sodium azide block in the nitrogen generator 45 is not ignited, and the airbag 42 is not inflated, and the multi-section telescopic rod 44 is in a contracted state.

[0023] The buffer assembly buffers the main motor 11: When the car is driving, if it encounters a bumpy road section, the main motor 11 will shake, and the shaking of the main motor 11 will be transmitted to the buffer plate 24 connected thereto by bolts. The buffer plate 24 will continuously compress and stretch the spring 22 through the buffer column 23. At this time, the buffer column 23 will slide up and down inside the sleeve 21 to achieve buffering of the shaking of the main motor 11. When the main motor 11 is bumpy, it can avoid additional forces between the components in the main motor 11, reduce the wear of the components in the main motor 11, and thus extend the service life of the motor.

[0024] The tightening assembly initially reduces the shock absorption of the buffer assembly: In the process of buffering the vibration of the main motor 11, the spring 22 will be continuously compressed and stretched due to the vibration of the main motor 11. When the car travels on a smooth road, the main motor 11 will also shake up and down due to the elastic deformation of the spring 22. The continuous shaking will also affect the instability of the motor drive, thereby causing the car's driving to be unstable.

[0025] At this time, because the magnetic poles of the opposite surfaces of the magnet plate 1 32 and the magnet plate 2 311 are opposite, according to the principle of opposite poles attracting each other, the magnet plate 1 32 and the magnet plate 2 311 will have a mutual magnetic attraction. In the process of the main motor 11 shaking up and down, the main motor 11 will cause the buffer plate 24 to shake up and down. Among them, when the buffer plate 24 shakes upward, the magnet plate 1 32 at the bottom and the corresponding magnet plate 2 311 will be magnetically attracted, thereby attracting the main motor 11 to move downward. At this time, on the contrary, when the buffer plate 24 shakes downward, the magnet plate 1 32 at the top and the corresponding magnet plate 2 311 will be magnetically attracted, thereby attracting the main motor 11 to move upward, and so on.

[0026] The shock-absorbing component reduces the shaking amplitude of the main motor 11: During the up and down shaking of the main motor 11, the main motor 11 will drive the fixed sleeve 51 to shake upward synchronously, the fixed sleeve 51 will drive the extension plate 52 to move upward inside the movable groove 55, the extension plate 52 will drive the limit rod 53 to shake up and down in the perforation, the limit rod 53 will drive the limit plate 54 to move up and down inside the limit groove 56, the limit plate 54 will stir the non-Newtonian fluid in the limit groove 56, and in the process of stirring the non-Newtonian fluid, due to the properties of the non-Newtonian fluid, the up and down movement of the limit plate 54 will be hindered, and the up and down movement of the limit plate 54 can be prevented from being excessively shaken up and down by the elastic deformation of the spring 22 by hindering the up and down movement of the limit plate 54, and by reducing the shaking amplitude of the main motor 11, the spring 22 can be restored to the undeformed state faster, thereby shortening the shaking time of the main motor 11 and achieving a multiple shock absorption effect.

[0027] The fastening group prevents the buffer plate 24 and the main motor 11 from loosening: Because the buffer plate 24 and the main motor 11 are fixedly connected by bolts, the bolts will rust due to oxidation after a long time. If the bolts are rusted, the connection between the buffer plate 24 and the main motor 11 will become loose. If the loosening of the main motor 11 is not detected in time, the installation of the main motor 11 will become loose, further causing the main motor 11 to cause instability in the driving process of the vehicle, affecting the normal driving and handling performance of the vehicle.

[0028] When the bolts between the buffer plate 24 and the main motor 11 become loose due to corrosion, a gap will appear between the buffer plate 24 and the main motor 11, and the movable rod 38 will move downward inside the slide groove 37 under the elastic reset action of the spring 39, such as Fig.10 As shown, the movable rod 38 pushes the block 36 through the top inclined surface of the pushing groove 381 to move inside the spring groove 34 toward the side close to the second spring 35. At this time, the block 36 compresses the second spring 35. Figure 8 As shown, the block 36 will be separated from the abutting engagement relationship with the slot 371 after the movement, and the torsion spring 33 will cause the magnet plate 1 32 to rotate with the rotation connection with the fixing frame 31 as the axis away from the side of the main motor 11. After the magnet plate 1 32 rotates 180 degrees, the magnet plate 1 32 will fit with the buffer plate 24. At the same time, due to the flipping of the magnet plate 1 32, the magnetic poles of the magnet plate 1 32 and the magnet plate 2 311 on the opposite sides are transformed into the same magnetic poles on the opposite sides. According to the principle that like poles repel each other, The second magnet plate 311 will repel the first magnet plate 32. After being repelled by the second magnet plate 311, the first magnet plate 32 will push the buffer plate 24 that is in contact with it to move toward the side close to the main motor 11, thereby preventing the bolts of the main motor 11 and the buffer plate 24 from rusting and loosening. After the motor becomes loose, it can promptly resist and stabilize to prevent the main motor 11 from loosening during installation, further avoiding the instability of the main motor 11 in the process of driving the vehicle, and reducing the influence of the looseness of the main motor 11 on the normal driving and control of the vehicle.

[0029] The protection component protects the main motor 11: When the car is driving, if the collision force is too great, causing the main motor 11 to fall off, the fallen main motor 11 will collide with other parts of the car, thereby increasing the damage to the car after the collision. In addition, there is a possibility that the main motor 11 will invade the car's cab, which will affect the driver's driving safety.

[0030] When the main motor 11 falls, the external controller controls the igniter 46 to be powered on and ignited. After the igniter 46 is ignited, the sodium azide block in the nitrogen generator 45 will burn. At this time, the sodium azide will quickly generate a large amount of nitrogen when burning. The nitrogen will fill the inside of the airbag 42. The airbag 42 will expand after being filled with nitrogen. After the airbag 42 expands, it will move to the side that makes the connecting plate 43 away from the sleeve rod 41, and then the connecting plate 43 will gradually extend the multi-section telescopic rod 44 to keep the connecting plate 43 in a stable expansion movement. After the airbag 42 is inflated, it can be ensured that it covers both sides of the main motor 11. By covering both sides of the main motor 11 with the airbag 42, the main motor 11 can be protected, so that after the main motor 11 is hit and falls, the impact force of the collision with other parts of the car is reduced. Reducing the impact force of the main motor 11 on other parts of the car can reduce the damage to the car after the collision. In addition, it can also reduce the possibility of the main motor 11 invading the cab of the car due to the collision, thereby avoiding the main motor 11 posing a threat to the driving safety of the driver.

[0031] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A new type of energy vehicle permanent magnet DC motor capable of vibration reduction, comprising a main housing (1) and a main motor (11), characterized in that: Two groups of buffer components are arranged symmetrically on the inner side of the main housing (1); The buffer assembly comprises two groups of sleeves (21) fixedly connected to the inner wall of the main housing (1), each group of the sleeves (21) being provided with two sleeves, the inner wall of the main housing (1) being fixedly connected to four springs (22) symmetrically arranged in an upper and lower direction, the four springs (22) being located inside the sleeve (21), the ends of the springs (22) away from the connection with the main housing (1) being fixedly connected to a buffer column (23), the ends of the buffer columns (23) close to the springs (22) being slid inside the sleeve (21), the four buffer columns (23) being divided into two groups, the ends of the two groups of buffer columns (23) away from the springs (22) being fixedly connected to a buffer plate (24), the mutually close sides of the two buffer plates (24) being fixedly connected to the main motor (11) by bolts; The main housing (1) is provided with a shock absorbing assembly, the shock absorbing assembly comprising two fixing sleeves (51) sleeved on one end of the main motor (11) away from the output shaft thereof, the two fixing sleeves (51) being fastened to the outer surface of the main motor (11) by bolts, a side of the fixing sleeve (51) away from the main motor (11) being fixedly connected to an extension plate (52), an end of the extension plate (52) away from the fixing sleeve (51) being fixedly connected to two upper and lower symmetrical limiting rods (53), one end of the two limiting rods (53) away from the extension plate (52) being fixedly connected to a limiting plate (54), a movable groove (55) being provided on the inner surface of the main housing (1) near the extension plate (52), one end of the extension plate (52) away from the fixing sleeve (51) slidingly sliding inside the movable groove (55), and limiting grooves (56) being provided on upper and lower sides of the main housing (1) near the movable groove (55).

2. The new energy automobile permanent magnet DC motor capable of damping vibration according to claim 1 is characterized in that: Two through holes for sliding of the two limiting rods (53) are provided on one side of the two limiting grooves (56) close to the movable groove (55), and the limiting plates (54) slide inside the limiting grooves (56). Non-Newtonian fluid is stored inside the limiting grooves (56).

3. The new energy automobile permanent magnet DC motor capable of damping vibration according to claim 1 is characterized in that: Both ends of the two buffer plates (24) are provided with fastening assemblies, the fastening assemblies comprising two fixing frames (31) fixedly connected to the two ends of the buffer plates (24), a magnet plate 1 (32) being rotatably connected inside the fixing frames (31), a torsion spring (33) being fixedly connected between the rotatably connected portion of the magnet plate 1 (32) and the fixing frames (31), and two groups of magnet plates 2 (311) corresponding to the positions of the magnet plates 1 (32) being fixedly connected to the inner side surface of the main housing (1), and a total of four magnet plates 2 (311) are provided in the two groups.

4. The new energy automobile permanent magnet DC motor capable of vibration reduction according to claim 3 is characterized in that: Each of the fixing frames (31) is composed of two bent rods, and the magnetic poles of the opposite surfaces of the magnet plate 1 (32) and the magnet plate 2 (311) are opposite.

5. The new energy automobile permanent magnet DC motor capable of vibration reduction according to claim 4 is characterized in that: The fastening assembly further comprises two spring slots (34) provided on both sides of the first magnet plate (32); a second spring (35) is fixedly connected inside the spring slot (34); an end of the second spring (35) away from the spring slot (34) is fixedly connected to a clamping block (36); an end of the clamping block (36) close to the second spring (35) slides inside the spring slot (34); two sliding slots (37) are provided on the sides of the two bending rods of the fixing frame (31) close to each other; the two sliding slots (37) are mutually connected. A symmetrical locking groove (371) is provided in the middle of the mutually adjacent sides, two movable rods (38) are slidably connected inside the two sliding grooves (37), a pushing groove (381) is provided on the mutually adjacent sides of the two movable rods (38), one end of the two movable rods (38) close to the main motor (11) is fixedly connected to a contact plate (310), and a spring three (39) is fixedly connected between one end of the two movable rods (38) away from the contact plate (310) and the outer surface of the fixing frame (31).

6. The new energy automobile permanent magnet DC motor capable of vibration reduction according to claim 5 is characterized in that: The bottom of the end of the clamping block (36) away from the second spring (35) is arranged as an inclined surface, the horizontal cross section of the slide groove (37) is cross-shaped, the end of the clamping block (36) away from the second spring (35) abuts against the top groove wall of the clamping groove (371), the horizontal cross section of the movable rod (38) is adapted to the shape of the slide groove (37), the groove top of the pushing groove (381) is arranged as an inclined surface, the end of the clamping block (36) away from the second spring (35) abuts against the top inclined surface of the pushing groove (381), and the end of the abutting plate (310) away from the movable rod (38) abuts against the outer surface of the main motor (11).

7. The new energy automobile permanent magnet DC motor capable of vibration reduction according to claim 1 is characterized in that: The buffer plate (24) is provided with a protection component, the protection component comprising a sleeve rod (41) clamped on the edge of the buffer plate (24), the bottom of the sleeve rod (41) is fixedly connected to an airbag (42), one end of the airbag (42) away from the sleeve rod (41) is fixedly connected to a connecting plate (43), two ends of the outer surface of the sleeve rod (41) close to the airbag (42) are fixedly connected to multi-section telescopic rods (44), the telescopic ends of the two multi-section telescopic rods (44) away from the sleeve rod (41) are fixedly connected to two ends of the connecting plate (43), the outer surface of the sleeve rod (41) and located inside the airbag (42) is fixedly connected to a nitrogen generator (45), and both sides of the nitrogen generator (45) are fixedly connected to igniters (46).

8. The new energy automobile permanent magnet DC motor capable of vibration reduction according to claim 7 is characterized in that: The nitrogen generator (45) consists of a shell and a sodium azide block.

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