A new energy vehicle suspension control arm
By using a split ball joint and lubrication components, the circulation and uniform distribution of lubricating grease are achieved, solving the wear problem between the ball joint and the ball joint, and improving the stability and service life of the suspension system.
Patent Information
- Application Number
- CN202510573301.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-05-06
- Publication Date
- 2026-11-06
AI Technical Summary
Wear between the ball joint and the ball seat reduces the movement accuracy of the control arm, affecting the stability and service life of the suspension system.
Design a suspension control arm for new energy vehicles, which adopts a split ball seat and lubrication components. By sliding and rotating the connecting plate up and down, the lubricating grease is circulated and evenly distributed, reducing friction and wear.
It significantly improves the lubrication effect of the ball joint, extends the service life of the control arm and ball joint, and ensures the stability and comfort of the suspension system.
Smart Images

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Abstract
Description
Technical Field
[0001] This invention relates to the field of automotive suspension system technology, and more specifically to a suspension control arm for new energy vehicles. Background Technology
[0002] The control arm is a key component in the suspension system responsible for connecting the vehicle body and wheels. Its function is to support the wheels and control their movement. The control arm is typically connected to the wheels or vehicle body via a ball joint (including a ball joint and a ball seat). The ball joint design allows the control arm to move within a certain range while maintaining wheel position and suspension stability.
[0003] The control arm is connected to the vehicle body or wheel via a ball joint. The two parts of the ball joint—the ball head and the ball seat—are the core of this connection. The ball head is spherical and is usually installed at one end of the control arm. It engages with the ball seat (usually concave) through a spherical surface, forming a joint-like connection. The ball head can rotate or swing freely within the ball seat, allowing the control arm to move relatively flexibly.
[0004] Because the contact surface between the ball joint and the ball seat is subjected to dynamic loads over a long period, friction and repeated vibrations can easily lead to wear. Especially after prolonged vehicle use, the contact surface between the ball joint and the ball seat will gradually wear down, creating gaps and causing the ball joint to loosen. This wear directly affects the performance of the control arm. As the gaps increase, the movement precision of the control arm decreases, which may lead to a decrease in the stability of the suspension system, or even cause more serious damage.
[0005] Lubrication plays a crucial role between the ball joint and the ball seat. Effective lubrication can significantly reduce friction, delay wear, and maintain smooth movement of the ball joint. Proper lubrication can reduce vibration and noise, and extend the service life of the control arm and the ball joint. Therefore, designing an efficient and durable lubrication scheme to ensure that the ball joint maintains good lubrication under dynamic loads is key to solving the above problems. Summary of the Invention
[0006] To address the shortcomings of existing technologies, this invention provides a suspension control arm for new energy vehicles, aiming to alleviate the aforementioned problems to at least some extent.
[0007] The above-mentioned technical objective of the present invention is achieved through the following technical solution: A suspension control arm for a new energy vehicle, comprising: Arm and body; A connecting plate is provided on the arm body, and the connecting plate is connected to the suspension bracket via a connecting rod; A ball seat is provided on the arm body, the ball seat is divided into an upper ball seat and a lower ball seat, and a ball cavity is formed between the two; A ball head is disposed within the ball cavity, and a sealing sleeve is provided between the ball head and the upper ball seat; An oil cavity is provided on the arm body, located at the bottom of the connecting plate, and is filled with lubricating grease. An elastic element is provided between the connecting plate and the oil cavity. The oil cavity, the connecting plate, the lubricating grease and the elastic element are combined to form a shock-absorbing structure. A lubrication component located between the oil cavity and the ball seat is used to deliver lubricating grease into the lower ball seat when the connecting plate moves downward, and the lubrication component can draw lubricating grease from the upper ball seat when the connecting plate moves upward. When the connecting plate moves downward, it can rotate the ball seat, with the lower ball seat rotating clockwise and the upper ball seat rotating counterclockwise.
[0008] Preferably, the inner wall of the spherical cavity is provided with multiple oil grooves.
[0009] Preferably, the lubrication component includes a connecting cavity formed on the arm body, an oil delivery pipe communicating with the oil cavity, a one-way valve a on the oil delivery pipe, an oil return hole formed on the upper ball seat, an oil return channel formed on the arm body communicating with the oil return hole and the oil cavity, a one-way valve b in the oil return channel, and an oil delivery channel communicating with the ball cavity on the lower ball seat.
[0010] Preferably, the one-way valve a includes a baffle a located at one end of the oil delivery pipe within the connecting cavity, and a spring a is connected between the baffle a and the oil delivery pipe.
[0011] Preferably, the lubrication component further includes a connecting shaft rotatably connected to the connecting cavity, a gear a connected to the connecting shaft, a rack meshing with the gear a connected to the baffle a, a connecting pipe a connected to the connecting shaft, a connecting pipe b connected to the lower ball seat, and a ratchet mechanism provided between the connecting pipe a and the connecting pipe b.
[0012] Preferably, a connecting rod is connected to the bottom of the connecting plate, the connecting rod extends into the oil cavity and is connected to a push plate, the elastic element is connected between the push plate and the oil cavity, a fitting piece a is connected to the bottom of the push plate, a fitting piece b that engages with the fitting piece a is slidably connected to the oil cavity, a traction rope is connected to the bottom of the fitting piece b, one end of the traction rope extends into the oil delivery pipe and is connected to the baffle a, the fitting piece a has multiple semi-circular grooves, and one side of the fitting piece b has multiple semi-circular protrusions that fit the semi-circular grooves.
[0013] Preferably, the lubrication component further includes a gear b connected to the upper ball seat and the lower ball seat, and a gear c rotatably connected to the arm body and meshing with the gear b.
[0014] Preferably, a sealing plate is connected to the ball head, a sealing ring is rotatably connected to the upper ball seat, a sealing sleeve is connected between the sealing plate and the sealing ring, a positioning rod is connected to the arm body, and one end of the positioning rod is connected to the sealing ring.
[0015] Preferably, the outer wall of the upper ball seat is provided with an annular groove that communicates with the oil return hole, and the oil return channel communicates with the annular groove.
[0016] Preferably, the one-way valve b includes a baffle b disposed at one end of the oil return channel, located in the oil chamber, and a spring b is connected between the baffle b and the oil chamber.
[0017] The control arm ball joint lubrication structure of this invention, through innovative design, significantly improves the lubrication effect of the ball joint, thereby enhancing the stability and service life of the control arm and the ball joint. Specific beneficial effects are as follows: 1. Effective flow and circulation of lubricating grease This invention, by incorporating a lubrication component, allows lubricating grease to circulate repeatedly within the ball joint cavity, ensuring that the contact surfaces of the ball joint remain lubricated at all times. This reduces loosening or damage to the ball joint caused by friction and wear. This lubrication cycle effectively prevents wear accumulation in the ball joint during prolonged use, thereby improving its service life and stability.
[0018] 2. Optimized oil distribution and filling By sliding the connecting plate up and down, lubricating grease can be pushed to the lower ball seat, and some of the original grease enters the cavity of the upper ball seat through the sealing sleeve for temporary storage. This process ensures that the grease can fill the movement gap between the ball cavity and the ball seat, forming a continuous lubricating layer, reducing friction and wear, and carrying away some of the heat generated by friction, thus preventing premature deterioration of the lubricating grease.
[0019] 3. Prevent grease buildup and reduce the burden on the sealing sleeve. As the connecting plate moves upward, the grease temporarily stored between the sealing sleeve and the upper ball seat is drawn back into the oil chamber, preventing grease buildup in the sealing sleeve and reducing its load. This process ensures continuous grease flow and keeps the lubrication system in optimal lubrication condition, extending the service life of the ball joint and control arm.
[0020] 4. Rotary design optimizes lubrication. This invention designs a lubrication component that allows the ball seat to rotate during the sliding motion of the connecting plate; specifically, the upper ball seat rotates clockwise and the lower ball seat rotates counterclockwise. This rotational motion ensures a periodic change in the contact surface between the ball head and the ball seat, preventing the accumulation of localized wear and allowing the lubricating grease to be distributed more evenly over the contact area. This rotation also helps to disperse the heat generated by friction, reducing the risk of excessively high local temperatures and preventing lubricating grease degradation.
[0021] 5. Split ball seat design reduces wear. The split ball joint design disperses the frictional load between the upper and lower ball joints, reducing the frictional pressure on a single contact surface, thereby effectively mitigating the risk of wear and further extending the service life of the ball joint and control arm.
[0022] In summary, this invention significantly improves the lubrication efficiency of ball joints by effectively flowing and distributing lubricating grease, utilizing the rotation mechanism of lubricating components, and designing a split ball seat. This reduces friction and wear, effectively prevents lubricating grease degradation caused by overheating, extends the service life of the entire suspension system, and ensures the stability, comfort, and handling of the vehicle under various operating conditions. Attached Figure Description
[0023] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram of the connecting cavity structure of the present invention; Figure 3 This is a schematic diagram of the lubrication component structure of the present invention; Figure 4 This is a schematic diagram of the ball seat structure of the present invention; Figure 5 This is a schematic diagram of the connecting shaft structure of the present invention; Figure 6 This is a schematic diagram of the ratchet mechanism structure of the present invention; Figure 7 This is a schematic diagram of the oil cavity structure of the present invention; Figure 8 This is a schematic diagram of the structure of the interlocking plate a and interlocking plate b of the present invention.
[0024] Figure label: 100. Arm body; 101. Connecting plate; 102. Ball seat; 103. Upper ball seat; 104. Lower ball seat; 105. Ball cavity; 106. Ball head; 107. Sealing sleeve; 108. Oil cavity; 109. Elastic element; 110. Oil groove; 200. Connecting cavity; 201. Oil supply pipe; 202. Check valve a; 203. Oil return hole; 204. Oil return passage; 205. Check valve b; 206. Baffle a; 207. Spring a; 208. Annular groove; 209. Baffle b; 210. Spring b; 211. Oil supply passage; 300. Connecting shaft; 301. Gear a; 302. Rack; 303. Connecting pipe a; 304. Connecting pipe b; 305. Ratchet mechanism; 400. Connecting rod; 401. Push plate; 402. Fitting piece a; 403. Fitting piece b; 404. Traction rope; 500, Gear b; 501, Gear c; 502, Sealing plate; 503, Sealing ring; 504, Positioning rod. Detailed Implementation
[0025] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.
[0026] refer to Figures 1-8 A suspension control arm for a new energy vehicle, comprising: Arm length 100; A connecting plate 101 is provided on the boom 100, and the connecting plate 101 is connected to the suspension bracket through a connecting rod; A ball seat 102 is provided on the arm body. The ball seat 102 is divided into an upper ball seat 103 and a lower ball seat 104, and a ball cavity 105 is formed between the two. A ball head 106 is provided inside the ball cavity 105, and a sealing sleeve 107 is provided between the ball head 106 and the upper ball seat 103; An oil cavity 108 is provided on the arm body 100 and located at the bottom of the connecting plate 101. It is filled with lubricating grease. An elastic element 109 is provided between the connecting plate 101 and the oil cavity 108. The oil cavity 108, the connecting plate 101, the lubricating grease and the elastic element 109 are combined to form a shock-absorbing structure. The lubrication component located between the oil cavity 108 and the ball seat 102 is used to deliver lubricating grease into the lower ball seat 104 when the connecting plate 101 moves downward, and the lubrication component can extract the lubricating grease from the upper ball seat 103 when the connecting plate 101 moves upward. When the connecting plate 101 moves downward, it can rotate the ball seat 102, the lower ball seat 104 rotates clockwise, and the upper ball seat 103 rotates counterclockwise. By designing the above structure, the lubrication effect of the ball joint in the control arm can be effectively improved, thereby enhancing the stability and service life between the control arm and the ball joint. During vehicle operation, the dynamic changes of the suspension system are transmitted to the oil chamber 108 through the connecting plate 101. The connecting plate 101 slides up and down under force, causing the lubricating grease to flow within the ball chamber 105, forming a repeated lubrication process. This process ensures that the contact surface of the ball joint remains lubricated at all times, effectively preventing loosening or damage to the ball joint caused by friction and wear.
[0027] Specifically, when the connecting plate 101 slides downwards, lubricating grease is pushed into the lower ball seat 104 through the lubrication components, and the grease originally in the oil cavity 108 is pushed into the cavity between the sealing sleeve 107 and the upper ball seat 103, thereby temporarily storing the lubricating grease. The grease fills the movement gap between the ball cavity 105 and the ball seat 102, forming a continuous lubrication layer, reducing friction and wear, and carrying away the heat generated by friction, preventing overheating and deterioration of the lubricating grease. As the grease fills, the gap in the ball cavity 105 is evenly covered, maintaining the movement accuracy of the ball joint, thereby ensuring the stability of the suspension system.
[0028] When the connecting plate 101 moves upward, the grease temporarily stored between the sealing sleeve 107 and the upper ball seat 103 is drawn back into the oil cavity 108, preventing grease from accumulating in the sealing sleeve 107 and reducing the burden on the sealing sleeve 107. After flowing back into the oil cavity 108, the grease continues to participate in the lubrication cycle, ensuring the continuous flow and distribution of lubricating grease.
[0029] Furthermore, as the connecting plate 101 moves downward, the lubrication component can also rotate the ball seat 102, causing the upper ball seat 103 to rotate clockwise and the lower ball seat 104 to rotate counterclockwise, thereby further optimizing the lubrication effect of the ball joint. Through rotation, the contact surface between the upper and lower ball seats 104 changes, preventing the accumulation of localized wear and ensuring that the grease is more evenly distributed in the contact area between the ball head 106 and the ball seat 102. The rotational motion not only helps to disperse frictional heat and reduce grease degradation caused by localized high temperatures, but also increases the fluidity of the grease.
[0030] The design of the upper ball seat 103 and the lower ball seat 104 rotating in different directions ensures a more uniform lubrication distribution and effectively avoids concentrated local wear. When the upper ball seat 103 rotates clockwise and the lower ball seat 104 rotates counterclockwise, the contact surface between the ball head 106 and the ball seat 102 changes periodically, allowing the grease to be distributed over a wider contact area. Furthermore, the different rotation directions effectively disperse the heat generated by friction, reducing the risk of excessively high local temperatures and maintaining the stability of the lubricating grease.
[0031] The split ball joint 102 design distributes the frictional load of the upper and lower ball joints 104 to different contact surfaces, reducing the frictional pressure on each contact surface, effectively mitigating the risk of wear, and extending the service life of the ball joint and control arm.
[0032] As a further embodiment of the present invention, the inner wall of the ball cavity 105 is provided with a plurality of oil grooves 110; By providing the oil groove 110, the oil groove 110 can collect and temporarily store lubricating grease within the ball cavity 105, ensuring that the grease can be continuously supplied to the contact surface between the ball seat 102 and the ball head 106 during the movement of the ball joint. The presence of the oil groove 110 allows the lubricating grease to be more evenly distributed in the contact area between the ball head 106 and the ball seat 102, thereby reducing friction and wear and extending the service life of the ball joint.
[0033] As a further embodiment of the present invention, the lubrication component includes a connecting cavity 200 formed on the arm body 100, an oil delivery pipe 201 communicating between the connecting cavity 200 and the oil cavity 108, a one-way valve a202 provided on the oil delivery pipe 201, an oil return hole 203 formed on the upper ball seat 103, an oil return channel 204 formed on the arm body 100 communicating with the oil return hole 203 and the oil cavity 108, a one-way valve b205 provided in the oil return channel 204, and an oil delivery channel 211 formed on the lower ball seat 104 communicating with the ball cavity 105; By setting up the oil supply pipe 201, when the connecting plate 101 moves downward, it will compress the elastic element 109 (optionally a spring) and the lubricating grease in the oil chamber 108. The elastic element 109 compresses and stores potential energy, and the grease, under pressure, can enter the connecting chamber 200 through the one-way valve a202, and enter the ball chamber 105 through the oil supply channel 211. The one-way valve a202 ensures that the lubricating grease is not backflowed when it is delivered from the oil chamber 108 to the ball seat 102 area. The design of the return oil hole 203 and the return oil channel 204 allows the lubricating grease to flow smoothly back to the oil chamber 108 after lubrication between the ball seat 102 and the ball head 106. The one-way valve b205 in the return oil channel 204 ensures the one-way flow of the returned grease, preventing the grease from flowing back into the ball seat 102 area and avoiding ineffective flow of the lubricating grease, which would not achieve a good lubrication effect. Through this design, the returned lubricating grease can smoothly return to the oil chamber 108, ensuring the effective circulation and distribution of grease in the system. This allows the lubricating grease with heat to enter the oil cavity 108 and mix with the large amount of grease in the oil cavity 108 to assist in heat dissipation.
[0034] As a further embodiment of the present invention, the one-way valve a202 includes a baffle a206 disposed at one end of the oil delivery pipe 201 located in the connecting cavity 200, and a spring a207 is connected between the baffle a206 and the oil delivery pipe 201. By setting baffle a206, when lubricating grease is delivered through oil supply pipe 201, baffle a206 is pushed open, allowing the grease to flow smoothly to the ball seat 102 area. When the grease flow stops or the pressure in oil chamber 108 decreases, the elastic force of spring a207 causes baffle a206 to automatically close, preventing the lubricating grease from flowing back and ensuring that the grease flows only unidirectionally to the ball seat 102 area, avoiding potential problems caused by reverse grease flow.
[0035] As a further embodiment of the present invention, the lubrication component further includes a connecting shaft 300 rotatably connected within the connecting cavity 200, a gear a301 connected to the connecting shaft 300, a rack 302 meshing with the gear a301 connected to the baffle a206, a connecting pipe a303 connected to the connecting shaft 300, a connecting pipe b304 connected to the lower ball seat 104, and a ratchet mechanism 305 provided between the connecting pipe a303 and the connecting pipe b304; By setting the rack 302, when the connecting plate 101 moves downward to push the grease into the connecting cavity 200, the baffle a206 is displaced, which can make the connecting shaft 300 rotate through the rack 302 and the gear a301. The rotation of the connecting shaft 300 can make the ball seat 102 rotate through the connecting pipe a303, the ratchet mechanism 305 and the connecting pipe b304. When the baffle a206 moves back to its original position, the connecting shaft 300 rotates in the opposite direction to reset. At this time, the ratchet mechanism 305 plays a role to ensure that the reverse rotation of the connecting shaft 300 is limited to unidirectional movement, avoiding the reset of the already rotated ball seat 102, which would cause the problem of not being able to disperse friction.
[0036] As a further embodiment of the present invention, a connecting rod 400 is connected to the bottom of the connecting plate 101. The connecting rod 400 extends into the oil cavity 108 and is connected to the push plate 401. An elastic member 109 is connected between the push plate 401 and the oil cavity 108. A fitting piece a402 is connected to the bottom of the push plate 401. A fitting piece b403 that engages with the fitting piece a402 is slidably connected to the oil cavity 108. A traction rope 404 is connected to the bottom of the fitting piece b403. One end of the traction rope 404 extends into the oil delivery pipe 201 and is connected to the baffle a206. The fitting piece a402 has multiple semi-circular grooves. One side of the fitting piece b403 has multiple semi-circular protrusions that are adapted to the semi-circular grooves. By setting interlocking plates a402 and b403, the two mesh with each other to form a certain frictional force. When the connecting plate 101 moves downward to push the grease through the oil delivery pipe 201 via the push plate 401, the frictional force generated by the meshing of interlocking plates a402 causes interlocking plates b403 to move downward, thereby loosening the traction rope 404 and providing conditions for the movement of the baffle plate a206. When the interlocking plates b403 move downward to the limit position, the movement of interlocking plates b403 firstly overcomes the frictional force while the connecting plate continues to move downward, causing the baffle plate a206 to bend to a certain extent and temporarily disengage from the interlocking plates b403. The connecting plate 101 can continue to move downward. When the connecting plate 101b is subsequently subjected to force and moves back to its original position, the frictional force generated by the meshing of interlocking plates a402 and b403 can be used to pull the traction rope 404 in time, causing the baffle plate a206 to reset and block the movement of the oil delivery pipe 201. The purpose of this design is that, since the baffle a206 pulls the rack 302 to rotate the connecting shaft 300 when it moves to reset, the additional transmission may prevent the baffle a206 from resetting and closing the oil supply pipe 201 in time. Therefore, by adding the traction rope 404, the fitting plate a402 and the fitting plate b403, the oil supply pipe 201 can be effectively and timely closed when the connecting plate 101 resets, thus avoiding this situation.
[0037] As a further embodiment of the present invention, the lubrication component also includes a gear b500 connected to the upper ball seat 103 and the lower ball seat 104, and a gear c501 rotatably connected to the arm body 100 and meshing with the gear b500. By setting gears b500 and c501, gear b500 is connected between the upper ball seat 103 and the lower ball seat 104. Through meshing with gear c501, the upper ball seat 103 and the lower ball seat 104 rotate in opposite directions. This design can improve lubrication and reduce local wear.
[0038] As a further embodiment of the present invention, a sealing plate 502 is connected to the ball head 106, a sealing ring 503 is rotatably connected to the upper ball seat 103, a sealing sleeve 107 is connected between the sealing plate 502 and the sealing ring 503, and a positioning rod 504 is connected to the arm body 100, with one end of the positioning rod 504 connected to the sealing ring 503. By setting the sealing ring 503, the upper ball seat 103 can rotate on the sealing ring 503, which avoids the problem that the sealing sleeve 107 will also be torn due to the rotation of the upper ball seat 103, causing damage.
[0039] As a further embodiment of the present invention, the outer wall of the upper ball seat 103 is provided with an annular groove 208 that communicates with the oil return hole 203, and the oil return channel 204 communicates with the annular groove 208. By setting the annular groove 208, the oil return hole 203 and the oil return channel 204 can still be connected no matter what angle the upper ball seat 103 rotates to, thus avoiding the problem that the oil return hole 203 and the oil return channel 204 cannot be connected due to misalignment caused by rotation.
[0040] As a further embodiment of the present invention, the one-way valve b205 includes a baffle b209 disposed at one end of the oil return channel 204, located in the oil chamber 108, and a spring b210 is connected between the baffle b209 and the oil chamber 108. By setting baffle b209, when grease in the lubrication system flows back to the oil chamber 108 through the return oil channel 204, baffle b209 will open under the pressure of the grease flow under the action of spring b210, allowing the grease to flow back to the oil chamber 108. This design ensures smooth grease return and prevents grease from flowing back into the upper ball seat 103 area, thereby ensuring the correct flow direction of lubricating grease.
[0041] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A suspension control arm for a new energy vehicle, characterized in that, include: Arm and body; A connecting plate is provided on the arm body, and the connecting plate is connected to the suspension bracket via a connecting rod; A ball seat is provided on the arm body, the ball seat is divided into an upper ball seat and a lower ball seat, and a ball cavity is formed between the two; A ball head is disposed within the ball cavity, and a sealing sleeve is provided between the ball head and the upper ball seat; An oil cavity is provided on the arm body, located at the bottom of the connecting plate, and is filled with lubricating grease. An elastic element is provided between the connecting plate and the oil cavity. The oil cavity, the connecting plate, the lubricating grease and the elastic element are combined to form a shock-absorbing structure. A lubrication component located between the oil cavity and the ball seat is used to deliver lubricating grease into the lower ball seat when the connecting plate moves downward, and the lubrication component can draw lubricating grease from the upper ball seat when the connecting plate moves upward. When the connecting plate moves downward, it can rotate the ball seat, with the lower ball seat rotating clockwise and the upper ball seat rotating counterclockwise.
2. The suspension control arm for a new energy vehicle according to claim 1, characterized in that, The inner wall of the spherical cavity is provided with multiple oil grooves.
3. The suspension control arm for a new energy vehicle according to claim 1, characterized in that, The lubrication component includes a connecting cavity formed on the arm body, an oil supply pipe communicating with the oil cavity, a one-way valve a on the oil supply pipe, an oil return hole on the upper ball seat, an oil return channel on the arm body communicating with the oil return hole and the oil cavity, a one-way valve b in the oil return channel, and an oil supply channel communicating with the ball cavity on the lower ball seat.
4. A suspension control arm for a new energy vehicle according to claim 3, characterized in that, The one-way valve a includes a baffle a located at one end of the oil delivery pipe within the connecting cavity, and a spring a is connected between the baffle a and the oil delivery pipe.
5. A suspension control arm for a new energy vehicle according to claim 4, characterized in that, The lubrication component further includes a connecting shaft rotatably connected to the connecting cavity, a gear a connected to the connecting shaft, a rack meshing with the gear a connected to the baffle a, a connecting pipe a connected to the connecting shaft, a connecting pipe b connected to the lower ball seat, and a ratchet mechanism provided between the connecting pipe a and the connecting pipe b.
6. A suspension control arm for a new energy vehicle according to claim 4, characterized in that, A connecting rod is connected to the bottom of the connecting plate. The connecting rod extends into the oil cavity and is connected to a push plate. The elastic element is connected between the push plate and the oil cavity. A fitting piece a is connected to the bottom of the push plate. A fitting piece b that engages with the fitting piece a is slidably connected to the oil cavity. A traction rope is connected to the bottom of the fitting piece b. One end of the traction rope extends into the oil delivery pipe and is connected to the baffle a. The fitting piece a has multiple semi-circular grooves. One side of the fitting piece b has multiple semi-circular protrusions that fit the semi-circular grooves.
7. A suspension control arm for a new energy vehicle according to claim 1, characterized in that, The lubrication component also includes a gear b connected to the upper ball seat and the lower ball seat, and a gear c rotatably connected to the arm body and meshing with the gear b.
8. A suspension control arm for a new energy vehicle according to claim 1, characterized in that, A sealing plate is connected to the ball head, a sealing ring is rotatably connected to the upper ball seat, a sealing sleeve is connected between the sealing plate and the sealing ring, a positioning rod is connected to the arm body, and one end of the positioning rod is connected to the sealing ring.
9. A suspension control arm for a new energy vehicle according to claim 3, characterized in that, The outer wall of the upper ball seat is provided with an annular groove that communicates with the oil return hole, and the oil return channel communicates with the annular groove.
10. A suspension control arm for a new energy vehicle according to claim 3, characterized in that, The one-way valve b includes a baffle b located at one end of the oil return channel and inside the oil chamber, with a spring b connecting the baffle b and the oil chamber.
