CN220430131U - Braking system and electric automobile - Google Patents
Braking system and electric automobile Download PDFInfo
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- CN220430131U CN220430131U CN202321661421.XU CN202321661421U CN220430131U CN 220430131 U CN220430131 U CN 220430131U CN 202321661421 U CN202321661421 U CN 202321661421U CN 220430131 U CN220430131 U CN 220430131U
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Abstract
The utility model relates to the technical field of electric automobiles, in particular to a braking system and an electric automobile, wherein the braking system comprises: the brake friction plate is arranged opposite to the piston, the contact detection sensor is arranged between the brake friction plate and the piston, and the contact detection sensor is used for detecting the abutting state of the brake friction plate and the piston; the warning device is electrically connected with the contact detection sensor and is used for giving warning based on the abutting state of the brake friction plate and the piston. According to the utility model, the contact detection sensor is arranged between the braking friction plate and the piston, the contact state of the braking friction plate and the piston is detected by the contact detection sensor, and a corresponding warning is sent out based on the contact state, so that a driver is informed of whether a vehicle has a hidden danger of braking or not, and the running safety of the vehicle is improved.
Description
Technical Field
The utility model relates to the technical field of electric automobiles, in particular to a braking system and an electric automobile.
Background
Electric vehicles are typically braked by hydraulic calipers, which are floating structures. When the electric automobile runs on a bumpy road section, the front axle of the automobile is excited by left and right lateral acceleration, and at the moment, the hydraulic calipers synchronously move. The hydraulic calipers comprise pistons, brake friction plates and brake discs, wherein the brake friction plates are arranged between the pistons and the brake discs, the pistons can impact the brake friction plates under the excitation of transverse acceleration, and the brake discs can limit the brake friction plates. Thus, the brake pads will impart a counter force to the piston. Under the influence of the reverse acting force of the braking friction plate, the piston can move towards the direction away from the braking friction plate, so that when the electric automobile brakes, the total brake pump liquid discharge amount is insufficient to enable the piston to return, and the braking friction plate and the brake disc are pushed to build pressure. The hydraulic brake calipers are reduced in braking efficiency and even cannot brake, so that potential braking hazards exist in the electric automobile, and the running safety of the electric automobile is affected.
Disclosure of Invention
The utility model provides a braking system and an electric automobile, which are used for solving the problems that in the prior art, in the using process of the electric automobile, the braking efficiency of a hydraulic braking caliper is reduced, even the electric automobile cannot be braked, so that the electric automobile has hidden danger of braking and the running safety of the electric automobile is influenced.
In order to solve the technical problems, the utility model is realized as follows:
in a first aspect, the present utility model provides a brake system for an electric vehicle, the brake system comprising: the brake friction plate is arranged opposite to the piston, the contact detection sensor is arranged between the brake friction plate and the piston, and the contact detection sensor is used for detecting the abutting state of the brake friction plate and the piston; the warning device is electrically connected with the contact detection sensor and is used for giving warning based on the abutting state of the brake friction plate and the piston.
Optionally, the contact detection sensor includes: the contact piece and the contact rod are in a cylindrical structure, and the contact piece is connected to the bottom wall of the piston; the contact rod is arranged opposite to the contact piece, one end of the contact rod is elastically connected to one side of the braking friction plate, the other end of the contact rod is used for being abutted to the contact piece, the warning device is electrically connected with the contact piece and the contact rod, and the warning device is used for giving warning based on the abutting state of the contact piece and the contact rod.
Optionally, along the direction of the opening of the piston, the sum of the length of the contact rod and the length of the contact piece is adapted to the depth of the piston, so that the opening of the piston is abutted against one side of the braking friction piece when the contact rod is abutted against the contact piece.
Optionally, the brake friction plate further includes: the backplate, the backplate connect in one side of braking friction disc, be provided with first mounting groove on the backplate, the feeler lever includes: the utility model provides a touch-type pole body with plant the silk, plant the silk including relative first end and the second end that sets up, first end fixed mounting in the first mounting groove, be provided with the second mounting groove on the second end, touch-type pole body elastic connection in the second mounting groove.
Optionally, the feeler lever further comprises: the wire planting nut is provided with a first through hole, the first through hole is at least partially sleeved at the second end of the wire planting nut, one end of the contact rod body extends into the second mounting groove, and the other end of the contact rod body penetrates through the first through hole and at least partially extends out of the first through hole and is opposite to the contact piece; the spring is sleeved between the outer wall of the feeler lever body and the inner wall of the first through hole.
Optionally, the first through hole is the step hole, be provided with the arch on the feeler lever body, protruding joint in the step hole, the one end butt of spring in protruding, the other end butt of spring in the second end of planting the silk.
Optionally, the contact includes: the contact piece base is fixedly connected to the bottom wall of the piston, and the contact piece body is clamped to the contact piece base.
Optionally, a third mounting groove is formed in a side, close to the feeler lever, of the touch pad base, the size of the third mounting groove is matched with that of the touch pad body, and the touch pad body is clamped in the third mounting groove.
Optionally, the alarm is an acoustic alarm and/or a light alarm.
In a second aspect, the present utility model provides an electric vehicle comprising the braking system of the first aspect.
The utility model provides a braking system and an electric automobile, wherein the braking system comprises: the brake friction plate is arranged opposite to the piston, the contact detection sensor is arranged between the brake friction plate and the piston, and the contact detection sensor is used for detecting the abutting state of the brake friction plate and the piston; the warning device is electrically connected with the contact detection sensor and is used for giving warning based on the abutting state of the brake friction plate and the piston. According to the utility model, the contact detection sensor is arranged between the braking friction plate and the piston, the contact state of the braking friction plate and the piston is detected by the contact detection sensor, and a corresponding warning is sent out based on the contact state, so that a driver is informed of whether a vehicle has a hidden danger of braking, and the running safety of the vehicle is improved.
Drawings
Fig. 1 shows a schematic diagram of a brake system according to the utility model.
Reference numerals:
10: a brake pad; 11: a back plate;
20: a piston;
31: a contact base; 32: a contact body; 33: a feeler lever body; 34: planting silk; 35: planting a wire nut; 36: and (3) a spring.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are some, but not all embodiments of the utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
It should be appreciated that reference throughout this specification to "one embodiment" or "an embodiment" means that a particular feature, structure or characteristic described in connection with the embodiment is included in at least one embodiment of the present utility model. Thus, the appearances of the phrases "in one embodiment" or "in an embodiment" in various places throughout this specification are not necessarily all referring to the same embodiment. Furthermore, the particular features, structures, or characteristics may be combined in any suitable manner in one or more embodiments.
Referring to fig. 1, a schematic structural diagram of the brake system according to an embodiment of the present utility model is shown. The brake system provided by the embodiment of the present utility model will be described in detail below with reference to fig. 1 through a specific embodiment and an application scenario thereof.
As shown in fig. 1, an embodiment of the present utility model provides a brake system for an electric vehicle, including: the brake friction plate 10, the piston 20, a contact detection sensor and an alarm, wherein the brake friction plate 10 and the piston 20 are oppositely arranged, the contact detection sensor is arranged between the brake friction plate 10 and the piston 20, and the contact detection sensor is used for detecting the abutting state of the brake friction plate 10 and the piston 20; the warning device is electrically connected with the contact detection sensor, and is used for giving a warning based on the abutting state of the brake friction plate 10 and the piston 20.
Electric vehicles are typically braked by hydraulic calipers, which are floating structures. When the electric automobile runs on a bumpy road section, the front axle of the automobile is excited by left and right lateral acceleration, and the hydraulic calipers synchronously move. Therefore, when the electric automobile is braked, the braking efficiency of the hydraulic calipers is reduced, and even the electric automobile cannot be braked, so that the hidden danger of braking of the electric automobile is caused, and the running safety of the electric automobile is influenced. Accordingly, embodiments of the present utility model provide a braking system to solve the above-described problems.
The braking system provided by the embodiment of the utility model is used for an electric automobile and comprises a braking friction plate 10, a piston 20, a contact detection sensor and a warning indicator. As in the prior art, the brake pads 10 are disposed opposite the pistons 20. In the embodiment of the present utility model, a contact detection sensor is provided between the existing brake pad 10 and the piston 20, and the contact detection sensor detects whether the brake pad 10 and the piston 20 are in an abutting state. In general, when the brake pad 10 and the piston 20 are in an abutting state, the piston 20 can be returned by the total brake pump discharge amount during braking of the electric vehicle, so that the brake pad 10 and the brake disc are pushed to build pressure, and the electric vehicle can be braked normally. If the brake friction plate 10 and the piston 20 are in a non-contact state, the total brake pump discharge amount may not be enough to return the piston 20 during braking of the electric vehicle, so that the pressure between the brake friction plate 10 and the brake disc cannot be pushed, and the electric vehicle cannot be braked normally.
The braking system provided by the embodiment of the utility model further comprises an alarm, wherein the alarm is electrically connected with the contact detection sensor. And acquiring the abutting state of the brake friction plate 10 and the piston 20 through the alarm, and sending out corresponding alarm based on the abutting state. For example, in the case where the warning indicator is a warning lamp, when the contact detection sensor detects that the brake friction plate 10 and the piston 20 are in the abutting state, the warning lamp may display green. When the contact detection sensor detects that the brake pad 10 and the piston 20 are in a non-abutting state, the warning lamp may display yellow. For another example, in the case where the warning device is a buzzer, when the contact detection sensor detects that the brake friction plate 10 and the piston 20 are in the abutting state, the buzzer may not sound. When the contact detection sensor detects that the brake pad 10 and the piston 20 are in a non-abutting state, the buzzer may sound.
Of course, the alarm in the embodiment of the utility model can be an acoustic alarm, a light alarm or an acousto-optic alarm. In this regard, the embodiments of the present utility model are not limited too much, and in actual use, a technician may set the embodiments as needed.
The embodiment of the utility model provides a braking system for an electric automobile, which comprises: the brake friction plate 10, the piston 20, a contact detection sensor and an alarm, wherein the brake friction plate 10 and the piston 20 are oppositely arranged, the contact detection sensor is arranged between the brake friction plate 10 and the piston 20, and the contact detection sensor is used for detecting the abutting state of the brake friction plate 10 and the piston 20; the warning device is electrically connected with the contact detection sensor, and is used for giving a warning based on the abutting state of the brake friction plate 10 and the piston 20. According to the embodiment of the utility model, the contact detection sensor is arranged between the brake friction plate 10 and the piston 20, the contact state of the brake friction plate 10 and the piston 20 is detected by the contact detection sensor, and a corresponding warning is sent out based on the contact state, so that a driver is informed of whether a vehicle has a hidden danger of braking, and the running safety of the vehicle is improved.
As an alternative embodiment, the contact detection sensor includes: a contact piece and a contact rod, wherein the piston 20 is of a cylindrical structure, and the contact piece is connected to the bottom wall of the piston 20; the contact rod is arranged opposite to the contact piece, one end of the contact rod is elastically connected to one side of the brake friction plate 10, the other end of the contact rod is used for being abutted to the contact piece, the alarm is electrically connected with the contact piece and the contact rod, and the alarm is used for giving out an alarm based on the abutting state of the contact piece and the contact rod.
As shown in fig. 1, the piston 20 provided in the embodiment of the present utility model has a cylindrical structure, and when the open end of the piston 20 abuts against one side of the brake friction plate 10, the brake system can brake normally. When the open end of the piston 20 is not abutted against one side of the brake pad 10, the brake system cannot brake normally.
The contact detection sensor in the embodiment of the utility model can comprise a contact piece and a contact rod. The contact is connected to the bottom wall of the piston 20, for example, the contact is stuck to the bottom wall of the piston 20, or the contact 20 is clamped to the bottom wall of the piston 20. One end of the feeler lever is elastically connected to one side of the brake friction plate 10, and at the same time, the other end of the feeler lever is arranged opposite to the contact plate, and the other end of the feeler lever is abutted against the contact plate. And the alarm is electrically connected to the contact piece and the feeler lever, and the alarm can send out corresponding alarm information based on the abutting state of the contact piece and the feeler lever. The driver can know whether the vehicle has a hidden danger of braking based on the corresponding warning information, so that the running safety of the vehicle is improved.
It should be noted that, in the embodiment of the present utility model, both the contact and the contact rod are conductive members. The contact piece and the contact rod are electrically connected to the alarm, and the circuit can be conducted to form a current loop under the condition that the contact piece and the contact rod are in an abutting state.
As an alternative embodiment, the sum of the length of the contact rod and the length of the contact plate along the direction of the opening of the piston is adapted to the depth of the piston 20, so that the opening of the piston 20 abuts against one side of the brake pad 10 with the contact rod abutting against the contact plate.
As shown in fig. 1, in an embodiment of the present utility model, the sum of the length of the contact rod and the length of the contact piece along the direction of the opening of the piston 20 is adapted to the depth of the piston 20. It will be appreciated that the length of the contact rod and the length of the contact tab may be equal to the depth of the piston 20, along the orientation of the opening of the piston 20. Thus, in the case where the opening of the piston 20 abuts against the brake friction plate 10, the feeler lever just abuts against the contact plate.
In the embodiment of the utility model, the feeler lever can be electrically connected with the alarm through one wire, and then the contact piece is electrically connected with the alarm through the other wire. Therefore, when the feeler lever is abutted against the contact piece, namely, the feeler lever and the contact piece are in an abutting state, the circuit is conducted, and the warning device sends warning information that the braking system brakes well. Under the condition that the feeler lever is not abutted against the contact piece, namely the feeler lever and the contact piece are in an untouched state, the circuit is not conducted, and the warning device sends out warning information that the braking system has the hidden danger of braking so as to remind a driver of the hidden danger of braking, and other braking measures need to be taken. As an alternative embodiment, the brake pad 10 further includes: the backplate 11, backplate 11 are connected in one side of braking friction disc 10, are provided with first mounting groove on the backplate 11, the feeler lever includes: the contact rod body 34 and the wire planting 35, the wire planting 35 comprises a first end and a second end which are oppositely arranged, the first end is fixedly installed in the first installation groove, a second installation groove is formed in the second end, and the contact rod body 34 is elastically connected in the second installation groove.
As shown in fig. 1, the brake pad 10 according to the embodiment of the present utility model further includes a back plate 11, and the back plate 11 is connected to a side of the brake pad 10 adjacent to the piston 20. The feeler lever in the embodiment of the utility model comprises a feeler lever body 34 and a wire 35, and a first mounting groove is arranged on one side of the back plate 11 close to the piston 20. The wire 35 includes a first end and a second end that are disposed opposite to each other, and the first end of the wire 35 is fixedly connected to the first mounting groove. For example, the first end of the wire 35 is provided with an interference fit with the first mounting groove, and the first end of the wire 35 extends into the first mounting groove, so that the first end of the wire 35 can be fixedly connected in the first mounting groove. A second mounting groove is provided at the second end of the wire 35 to elastically couple the feeler lever body 34 to the second mounting groove, so that the feeler lever body 34 can be elastically coupled to one side of the brake pad 10.
As an alternative embodiment, the feeler lever further comprises: the wire planting nut 35 and the spring 36, wherein the wire planting nut 35 is provided with a first through hole, the first through hole is at least partially sleeved at the second end of the wire planting 34, one end of the contact rod body 33 stretches into the second mounting groove, the other end of the contact rod body 33 passes through the first through hole and at least partially stretches out of the first through hole, and the contact rod body and the contact plate are arranged opposite to each other; the spring 36 is sleeved between the outer wall of the feeler lever body 33 and the inner wall of the first through hole.
As shown in fig. 1, the feeler lever provided in the embodiment of the present utility model further includes a wire-planting nut 35 and a spring 36, and the wire-planting nut 35 is provided with a first through hole. When the contact rod is installed, the spring 36 can be sleeved on the outer wall of the contact rod body 33, one end of the contact rod body 33 extends into the second installation groove, and the other end of the contact rod body 33 passes through the first through hole and extends out of the first through hole to be opposite to the contact piece. The first through hole is sleeved on the second end of the wire planting 34, so that the wire planting nut 35 is connected to the second end of the wire planting 34. At this time, the spring 36 is disposed between the outer wall of the feeler body 33 and the inner wall of the first through hole, and the feeler body 33 may be elastically coupled to one side of the brake pad 10.
As an alternative embodiment, the first through hole is a step hole, the feeler lever body 33 is provided with a protrusion, the protrusion is clamped in the step hole, one end of the spring 36 is abutted against the protrusion, and the other end of the spring 36 is abutted against the second end of the wire planting 34.
As shown in fig. 1, in the embodiment of the present utility model, the first through hole is a step hole, the first through hole is designed as a step hole, and a protrusion is provided on the feeler lever body 33, so that the protrusion can be clamped in the step hole, and the feeler lever body 33 only partially extends out of the first through hole and abuts against the contact plate, thereby maintaining elastic connection between the feeler lever body 33 and the brake friction plate 10.
Under the condition that the protrusion is clamped in the step hole, one end of the spring 36 is abutted against the protrusion, and the other end of the spring 36 is abutted against the second end of the wire 34, so that the spring 36 is always in an elastic shrinkage state, and elastic force for elastic connection between the contact rod body 33 and the brake friction plate 10 is provided.
As an alternative embodiment, the contact includes: the contact base 31 and the contact body 32, wherein, contact base 31 fixed connection is in the diapire of piston 20, and contact body 34 joint is in contact base 31.
As shown in fig. 1, the contact according to the embodiment of the present utility model includes a contact base 31 and a contact body 32, where the contact base 31 is fixedly connected to the bottom wall of the piston 20, for example, the contact base 31 is adhered to the bottom wall of the piston 20. The contact body 34 is clamped to the contact base 31, so that the contact body 34 is connected to the contact base 31, and the contact body 34 is connected to the bottom wall of the piston 20.
As an alternative embodiment, a third mounting groove is provided on a side of the contact base 31 near the contact rod, and the size of the third mounting groove is adapted to the size of the contact body 32, and the contact body 32 is clamped in the third mounting groove.
In the embodiment of the present utility model, a third mounting groove may be disposed on a side of the contact base 31 close to the contact rod, and the size of the third mounting groove is set to be matched with the size of the contact body 32, so that the contact body 32 may be clamped in the third mounting groove, and the mounting of the contact body 32 is achieved.
As an alternative embodiment, the warning device is an audible warning device and/or a light warning device.
The alarm in the embodiment of the utility model can adopt an acoustic alarm, a lamplight alarm or an acousto-optic alarm. For example, the warning indicator is a light warning indicator, and the light warning indicator is specifically a warning light, and when the contact detection sensor detects that the brake friction plate 10 and the piston 20 are in the abutting state, the warning light can be displayed in green. When the contact detection sensor detects that the brake pad 10 and the piston 20 are in a non-abutting state, the warning lamp may display yellow. For another example, the alarm is an acoustic alarm, and in the case that the acoustic alarm is specifically a buzzer, when the contact detection sensor detects that the brake friction plate 10 and the piston 20 are in the abutting state, the buzzer may not sound. When the contact detection sensor detects that the brake pad 10 and the piston 20 are in a non-abutting state, the buzzer may sound.
The present utility model provides a brake system comprising: the brake friction plate is arranged opposite to the piston, the contact detection sensor is arranged between the brake friction plate and the piston, and the contact detection sensor is used for detecting the abutting state of the brake friction plate and the piston; the warning device is electrically connected with the contact detection sensor and is used for giving warning based on the abutting state of the brake friction plate and the piston. According to the utility model, the contact detection sensor is arranged between the braking friction plate and the piston, the contact state of the braking friction plate and the piston is detected by the contact detection sensor, and a corresponding warning is sent out based on the contact state, so that a driver is informed of whether a vehicle has a hidden danger of braking, and the running safety of the vehicle is improved.
The embodiment of the utility model also provides an electric automobile, which comprises the braking system in any one of the embodiments.
It should be noted that, in the embodiment of the present utility model, the brake system has the same structure as the brake system in the foregoing embodiments, and the beneficial effects thereof are similar, and are not described herein.
It should be noted that, in the present specification, each embodiment is described in a progressive manner, and each embodiment is mainly described as different from other embodiments, and identical and similar parts between the embodiments are all enough to be referred to each other.
While alternative embodiments of the present utility model have been described, additional variations and modifications in those embodiments may occur to those skilled in the art once they learn of the basic inventive concepts. It is therefore intended that the following appended claims be interpreted as including alternative embodiments and all such alterations and modifications as fall within the scope of the embodiments of the utility model.
Finally, it is further noted that relational terms such as first and second, and the like are used solely to distinguish one entity from another entity without necessarily requiring or implying any actual such relationship or order between such entities. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that an article or terminal that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such article or terminal. Without further limitation, an element defined by the phrase "comprising one … …" does not exclude that an additional identical element is present in an article or terminal device comprising the element.
While the foregoing has been described in some detail by way of illustration of the principles and embodiments of the utility model, and while in accordance with the principles and implementations of the utility model, those skilled in the art will readily recognize that the utility model is not limited thereto.
Claims (10)
1. A braking system for an electric vehicle, the braking system comprising: a braking friction plate, a piston, a contact detection sensor and a warning device, wherein,
the braking friction plate and the piston are arranged oppositely,
the contact detection sensor is arranged between the brake friction plate and the piston and is used for detecting the abutting state of the brake friction plate and the piston;
the warning device is electrically connected with the contact detection sensor and is used for giving warning based on the abutting state of the brake friction plate and the piston.
2. The brake system of claim 1, wherein the contact detection sensor comprises: a contact and a contact rod, wherein,
the piston is of a cylindrical structure, and the contact piece is connected to the bottom wall of the piston;
the contact rod is arranged opposite to the contact piece, one end of the contact rod is elastically connected to one side of the braking friction piece, the other end of the contact rod is used for abutting against the contact piece,
the warning device is electrically connected with the contact piece and the contact rod, and is used for giving out warning based on the abutting state of the contact piece and the contact rod.
3. The brake system of claim 2, wherein a sum of a length of the contact rod and a length of the contact plate along an orientation of the piston opening is adapted to a depth of the piston such that the opening of the piston abuts a side of the brake friction plate with the contact rod abutting the contact plate.
4. A brake system according to claim 2 or 3, wherein the brake pads further comprise: the backboard is connected to one side of the braking friction plate, a first mounting groove is arranged on the backboard,
the feeler lever includes: the utility model provides a touch-type pole body with plant the silk, plant the silk including relative first end and the second end that sets up, first end fixed mounting in the first mounting groove, be provided with the second mounting groove on the second end, touch-type pole body elastic connection in the second mounting groove.
5. The brake system of claim 4, wherein the feeler lever further comprises: a wire-planting nut and a spring, wherein,
the wire planting nut is provided with a first through hole which is at least partially sleeved at the second end of the wire planting nut,
one end of the feeler lever body extends into the second mounting groove, and the other end of the feeler lever body passes through the first through hole and at least partially extends out of the first through hole and is arranged opposite to the contact piece;
the spring is sleeved between the outer wall of the feeler lever body and the inner wall of the first through hole.
6. The brake system according to claim 5, wherein the first through hole is a stepped hole, a protrusion is provided on the feeler lever body, the protrusion is engaged with the stepped hole,
one end of the spring is abutted to the protrusion, and the other end of the spring is abutted to the second end of the wire planting device.
7. The braking system of claim 2, wherein the contact comprises: a contact base and a contact body, wherein,
the contact base is fixedly connected to the bottom wall of the piston,
the contact body is clamped to the contact base.
8. The brake system of claim 7, wherein a third mounting groove is provided on a side of the contact base adjacent to the contact stem, the third mounting groove being sized to fit the size of the contact body, the contact body being snap-fit within the third mounting groove.
9. Brake system according to claim 1, characterized in that the warning is an audible warning and/or a light warning.
10. An electric vehicle, characterized in that it comprises a braking system according to any one of claims 1-9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321661421.XU CN220430131U (en) | 2023-06-27 | 2023-06-27 | Braking system and electric automobile |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321661421.XU CN220430131U (en) | 2023-06-27 | 2023-06-27 | Braking system and electric automobile |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220430131U true CN220430131U (en) | 2024-02-02 |
Family
ID=89686376
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321661421.XU Active CN220430131U (en) | 2023-06-27 | 2023-06-27 | Braking system and electric automobile |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220430131U (en) |
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2023
- 2023-06-27 CN CN202321661421.XU patent/CN220430131U/en active Active
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