Brake pedal device and noise reduction part for brake pedal device
By employing a segmented design of elastic noise-reducing components in the brake pedal assembly, the noise problem during pedal return has been solved, resulting in more significant noise reduction and improved comfort.
Patent Information
- Application Number
- CN202520154561.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-23
- Publication Date
- 2025-12-12
- Estimated Expiration
- 2035-01-23
AI Technical Summary
The existing brake pedal system generates significant vibration and noise when the pedal returns to its original position, and the existing noise reduction pads are ineffective, affecting passenger comfort.
The noise reduction component is made of elastic material and is designed as a first and second noise reduction part connected sequentially along the axial direction. The cross-sectional area of the first noise reduction part gradually increases, while the cross-sectional area of the second noise reduction part is fixed. The segmented design buffers and absorbs the impact energy when the pedal arm returns to its original position.
It significantly reduces noise when the pedal arm returns to its original position, improving ride comfort. By dynamically increasing the contact area, it buffers impact energy in stages, resulting in significant noise reduction.
Smart Images
Figure CN223658151U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to vehicle brake equipment technical field, concretely relates to a brake pedal device and be used for brake pedal device's noise reduction piece. BACKGROUND
[0002] The brake pedal device recognizes the driver's intention through pedal movement, and the pedal sensor sends the pedal signal to the domain control or the vehicle processor, and the vehicle brakes the brake execution unit according to the signal, thereby meeting the driver's deceleration expectation.
[0003] In the brake pedal device, when the driver releases the pedal return to the initial position, vibration noise will be generated, thereby affecting the comfort of the ride. In order to reduce noise, the existing technology generally sets a noise reduction pad on the pedal arm or pedal support. The noise reduction pad in the prior art is generally a flat structure, and the noise reduction effect of such structure is poor, so that the vibration noise generated when the pedal returns is still large. SUMMARY
[0004] The utility model discloses a brake pedal device that can effectively reduce noise when the pedal returns.
[0005] To achieve the above object, the utility model adopts the technical scheme that is:
[0006] A brake pedal device, comprising a pedal support and a pedal arm rotatably arranged on the pedal support, further comprising a noise reduction piece arranged on one of the pedal support and the pedal arm, when the pedal arm returns, the noise reduction piece abuts against the other of the pedal support and the pedal arm, the noise reduction piece is made of elastic material, the noise reduction piece comprises a first noise reduction part and a second noise reduction part arranged in sequence along the axial direction, the first noise reduction part is arranged towards the other of the pedal support and the pedal arm, the second noise reduction part is arranged close to one of the pedal support and the pedal arm; along the axial direction, the first noise reduction part has a distal end away from the second noise reduction part and a proximal end connected with the second noise reduction part, from the distal end to the proximal end, the cross-sectional area of the first noise reduction part gradually increases, and the cross-sectional area of the proximal end of the first noise reduction part is not greater than the cross-sectional area of the second noise reduction part.
[0007] In some embodiments, the cross-sectional area of the proximal end of the first noise reduction part is smaller than the cross-sectional area of the second noise reduction part.
[0008] In some embodiments, the first noise reduction part is in a partial spherical structure.
[0009] In some embodiments, the first noise reduction part is in a conical structure, and a cross-sectional area of the proximal end is at least five times of a cross-sectional area of the distal end.
[0010] In some embodiments, the second noise reduction part has a same cross-sectional area at each position along the axial direction.
[0011] The second noise reduction part is in a cylindrical structure.
[0012] In some embodiments, the noise reduction piece further comprises a connecting part connected to one of the pedal bracket and the pedal arm, the connecting part is sequentially connected to the second noise reduction part along the axial direction, and the connecting part is embedded in the one of the pedal bracket and the pedal arm.
[0013] In some embodiments, the connecting part comprises a first connecting part and a second connecting part sequentially connected along the axial direction, one end of the first connecting part is sequentially connected to the second noise reduction part, the second connecting part is in a conical structure, a large end of the second connecting part is connected to the other end of the first connecting part, and a cross-sectional area of the large end of the second connecting part is larger than a cross-sectional area of the first connecting part.
[0014] In some embodiments, the noise reduction piece further comprises a connecting part connected to one of the pedal bracket and the pedal arm, the connecting part is an end surface of the second noise reduction part away from the first noise reduction part, and the connecting part is connected to the one of the pedal bracket and the pedal arm by adhesion.
[0015] In some embodiments, the noise reduction piece is made of rubber material.
[0016] The utility model also provides a noise reduction piece for brake pedal device, the noise reduction piece is made of rubber material, the noise reduction piece includes first noise reduction part and second noise reduction part sequentially connected along the axial direction, the first noise reduction part has the distal end away from the second noise reduction part and the proximal end with the second noise reduction part, from the distal end to the proximal end, the cross-sectional area of first noise reduction part gradually increases, and the cross-sectional area of the proximal end of the first noise reduction part is less than the cross-sectional area of the second noise reduction part.
[0017] Due to the use of the above technical scheme, compared with the prior art, the utility model has the following advantages: in the brake pedal device of the utility model, when the pedal arm returns, the noise caused by the impact of the pedal arm and the pedal bracket can be reduced by the noise reduction piece; at the same time, the noise reduction piece adopts a segmented design, which can segmentally absorb and buffer the impact energy generated during the pedal return process; and the contact area of the first noise reduction part first contacted when the pedal arm returns is dynamically increased, so that the instantaneous energy generated when the pedal arm releases the impact on the pedal bracket can be step-by-step buffered, thereby making the noise reduction effect more significant. Attached Figure Description
[0018] Appendix Figure 1 This is a perspective view of the brake pedal device in this embodiment;
[0019] Appendix Figure 2 This is a top view of the brake pedal device in this embodiment;
[0020] Appendix Figure 3 For the appendix Figure 2 sectional view along line AA;
[0021] Appendix Figure 4 For the appendix Figure 3 Enlarged view of a portion of point A in the middle;
[0022] Appendix Figure 5 This is a three-dimensional schematic diagram of the noise reduction component in this embodiment;
[0023] Appendix Figure 6 This is a front view schematic diagram of the noise reduction component in this embodiment;
[0024] Appendix Figure 7 This is a top view of the noise reduction component in this embodiment;
[0025] Appendix Figure 8 For the appendix Figure 7 Schematic diagram of cross section along line AA.
[0026] Among them: 1. pedal bracket; 2. pedal arm; 3. pedal; 4. elastic element; 5. noise reduction element; 51. first noise reduction part; 511. distal end; 512. proximal end; 52. second noise reduction part; 53. connecting part; 531. first connecting part; 532. second connecting part. Detailed Implementation
[0027] To make the above-mentioned objects, features, and advantages of this utility model more apparent and understandable, the present utility model will be described in detail below with reference to the accompanying drawings and specific embodiments. Many specific details are set forth in the following description to provide a full understanding of the present utility model. However, the present utility model can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of the present utility model. Therefore, the present utility model is not limited to the specific embodiments disclosed below.
[0028] In the description of the utility model, it is necessary to understand that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the utility model and simplifying the description, and therefore cannot be understood as indicating or implying that the devices or elements indicated must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the utility model.
[0029] In addition, the terms "first" and "second" are only for the purpose of description, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" can explicitly or implicitly include at least one of the features. In the description of the utility model, the meaning of "a plurality of" is at least two, for example, two, three, etc., unless otherwise explicitly specified.
[0030] In the utility model, unless otherwise explicitly specified and limited, the terms "mounting", "connection", "connection", "fixing" and the like should be understood in a broad sense, for example, it can be fixedly connected, or it can be detachably connected, or it can be integrated; it can be directly connected, or it can be indirectly connected through an intermediate medium, it can be the communication or interaction relationship between two elements, unless otherwise explicitly limited. For ordinary skilled persons in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.
[0031] In the utility model, unless otherwise explicitly specified and limited, the first feature "on" or "under" the second feature can be direct contact between the first and second features, or indirect contact between the first and second features through an intermediate medium. Moreover, the first feature "above", "above" and "above" the second feature can be directly above or obliquely above the first feature, or only indicate that the horizontal height of the first feature is higher than that of the second feature. The first feature "below", "below" and "below" the second feature can be directly below or obliquely below the first feature, or only indicate that the horizontal height of the first feature is less than that of the second feature.
[0032] It should be noted that when an element is referred to as "fixed to" or "provided on" another element, it can be directly on another element or there can be a middle element. When an element is considered to be "connected" to another element, it can be directly connected to another element or there can be a middle element. The terms "vertical", "horizontal", "up", "down", "left", "right" and similar expressions used herein are only for the purpose of illustration, and do not represent the only embodiment.
[0033] As Figures 1-3 shown in the utility model discloses brake pedal device includes pedal support 1, pedal arm 2, pedal 3, elastic piece 4 and noise reduction piece 5.
[0034] Pedal arm 2 can be rotatably arranged on pedal support 1. Pedal 3 is fixedly arranged on pedal arm 2. Elastic piece 4 is arranged between pedal support 1 and pedal arm 2. When the pedal 3 is stepped down during braking, the pedal arm 2 drives the pedal 3 to rotate downward relative to the pedal support 1. When the pedal 3 is released, the elastic force of the elastic piece 4 is used to drive the pedal arm 2 to drive the pedal 3 to automatically rotate upward and return to position.
[0035] Noise reduction piece 5 is arranged on one of pedal support 1 and pedal arm 2, and the other of pedal support 1 and pedal arm 2 is abutted by noise reduction piece 5 when pedal arm 2 returns to position, noise reduction piece 5 is made of elastic material, preferably noise reduction piece 5 is made of rubber material, so that noise reduction piece 5 has elasticity and also has certain strength. In this way, when pedal arm 2 returns to position and noise reduction piece 5 abuts the other of pedal support 1 and pedal arm 2, noise reduction piece 5 is elastically deformed, and the noise generated by the impact of pedal arm 2 and pedal support 1 can be reduced by the elastic deformation of noise reduction piece 5, and pedal arm 2 can also be effectively buffered.
[0036] As Figures 3-8 shown, noise reduction piece 5 includes first noise reduction part 51 and second noise reduction part 52 arranged in sequence along the axial direction, first noise reduction part 51 is arranged towards the other of pedal support 1 and pedal arm 2, and second noise reduction part 52 is arranged close to one of pedal support 1 and pedal arm 2. Along the axial direction, first noise reduction part 51 has a distal end 511 away from second noise reduction part 52 and a proximal end 512 connected with second noise reduction part 52, and the cross-sectional area of first noise reduction part 51 gradually increases from distal end 511 to proximal end 512, and the cross-sectional area of proximal end 512 is not greater than the cross-sectional area of second noise reduction part 52. Preferably, the cross-sectional area of proximal end 512 is smaller than the cross-sectional area of second noise reduction part 52.
[0037] In this way, first noise reduction part 51 and second noise reduction part 52 form a two-section noise reduction design structure, which can segmentally absorb and buffer the impact energy generated during the return of pedal arm 2. First noise reduction part 51 absorbs the energy of the initial rapid return of pedal arm 2, and second noise reduction part 52 ensures the support of the return of pedal arm 2, and the two-section noise reduction design structure can reduce the noise generated by the impact of pedal arm 2 when returning to position.
[0038] Moreover, when the pedal arm 2 is returned, first, the other one of the pedal support 1 and the pedal arm 2 contacts the distal end 511, and as the pedal arm 2 is continuously returned, the first noise reduction part 51 gradually contacts the other one of the pedal support 1 and the pedal arm 2 from the distal end 511 to the proximal end 512. Since the cross-sectional area of the first noise reduction part 51 gradually increases from the distal end 511 to the proximal end 512, the contact area between the first noise reduction part 51 and the other one of the pedal support 1 and the pedal arm 2 gradually increases, that is, the contact area is dynamically increased, which can step by step buffer the instantaneous energy generated when the pedal arm 2 hits the pedal support 1 when the pedal 3 is released, so as to effectively reduce the noise.
[0039] In this embodiment, the first noise reduction part 51 is in a partial spherical structure, and the distal end 511 is the top of the partial spherical structure. In this way, when the pedal arm 2 is returned and the first noise reduction part 51 starts to contact the other one of the pedal support 1 and the pedal arm 2, it is point contact, so that the initial contact area is small, and the process of dynamically increasing the contact area during the return of the pedal arm 2 is more significant, so that the noise reduction effect is better.
[0040] In other embodiments, the first noise reduction part 51 can also be designed as a conical structure, and at this time, the cross-sectional area of the proximal end 512 is at least five times the cross-sectional area of the distal end 511. In this way, the cross-sectional area of the distal end 511 is relatively small, so that the contact area when the first noise reduction part 51 starts to contact the other one of the pedal support 1 and the pedal arm 2 is also small, which can also make the process of dynamically increasing the contact area during the return of the pedal arm 2 more significant, so that the noise reduction effect is better.
[0041] In the axial direction, the cross-sectional area of the second noise reduction part 52 is the same at each position. Preferably, the second noise reduction part 52 is in a cylindrical structure.
[0042] The noise reduction piece 5 further comprises a connecting part 53, and the connecting part 53 is used to connect the noise reduction piece 5 and one of the pedal support 1 and the pedal arm 2.
[0043] In this embodiment, the connecting part 53 is sequentially connected with the second noise reduction part 52 in the axial direction, and the connecting part 53 is embedded in one of the pedal support 1 and the pedal arm 2.
[0044] Specifically, the connecting portion 53 comprises a first connecting portion 531 and a second connecting portion 532 arranged sequentially along the axial direction. One end of the first connecting portion 531 is sequentially connected with the end of the second noise reduction portion 52 away from the first noise reduction portion 51. The second connecting portion 532 is in a tapered structure, the large end of the second connecting portion 532 is connected with the other end of the first connecting portion 531, and the cross-sectional area of the large end of the second connecting portion 532 is larger than that of the first connecting portion 531. In this way, the structure of the connecting portion 53 is arranged, so that the connection of the connecting portion 53 in one of the pedal bracket 1 and the pedal arm 2 is more reliable, and the connecting portion 53 can be prevented from being pulled out of one of the pedal bracket 1 and the pedal arm 2.
[0045] In other embodiments, the connecting portion 53 can also be an end surface of the second noise reduction portion 52 away from the first noise reduction portion 51, and at this time the connecting portion 53 is connected with one of the pedal bracket 1 and the pedal arm 2 by adhesion. This makes the structure of the noise reduction piece 5 simple.
[0046] In this embodiment, the noise reduction piece 5 is installed on the pedal arm 2. The test data of the noise reduction by the noise reduction piece 5 of the present application and the noise reduction pad in the prior art when the pedal arm 2 is returned is compared as shown in the following table.
[0047]
[0048] As can be seen from the above table, after the noise reduction piece 5 of the present application is used, the noise during the return process of the pedal 3 can be significantly reduced, thereby improving the comfort of riding.
[0049] The above embodiments are only for illustrating the technical concept and characteristics of the present application, and the purpose is to enable those skilled in the art to understand the content of the present application and implement it, and cannot limit the protection scope of the present application. Any equivalent changes or modifications made according to the spirit and essence of the present application shall be covered within the protection scope of the present application.
Claims
1. A brake pedal apparatus comprising a pedal bracket and a pedal arm rotatably disposed on the pedal bracket, characterized by: The noise reduction piece is arranged on one of the pedal support and the pedal arm, and abuts against the other of the pedal support and the pedal arm when the pedal arm returns. The noise reduction piece is made of elastic material. The noise reduction piece comprises a first noise reduction part and a second noise reduction part arranged in sequence along an axial direction. The first noise reduction part is arranged towards the other of the pedal support and the pedal arm. The second noise reduction part is arranged close to the one of the pedal support and the pedal arm. The first noise reduction part has a distal end away from the second noise reduction part and a proximal end abutting against the second noise reduction part along the axial direction. The cross-sectional area of the first noise reduction part gradually increases from the distal end to the proximal end. The cross-sectional area of the proximal end of the first noise reduction part is not greater than the cross-sectional area of the second noise reduction part.
2. The brake pedal apparatus according to claim 1, characterized by: The cross-sectional area of the proximal end of the first noise reduction part is less than the cross-sectional area of the second noise reduction part.
3. The brake pedal assembly of claim 1, wherein: The first noise reduction part has a partial spherical structure.
4. The brake pedal assembly of claim 1, wherein: The first noise reduction part has a conical structure. The cross-sectional area of the proximal end is at least five times the cross-sectional area of the distal end.
5. The brake pedal arrangement of claim 4, characterized in that: The cross-sectional area of the second noise reduction part is constant at each position along the axial direction. The second noise reduction part has a cylindrical structure.
6. The brake pedal assembly of claim 1, wherein: The noise reduction piece further comprises a connecting part connected to one of the pedal support and the pedal arm. The connecting part is arranged in sequence along the axial direction and abuts against the second noise reduction part. The connecting part is embedded in the one of the pedal support and the pedal arm.
7. The brake pedal arrangement of claim 6, characterized in that: The connecting part comprises a first connecting part and a second connecting part arranged in sequence along the axial direction. One end of the first connecting part abuts against the second noise reduction part. The second connecting part has a conical structure. A large end of the second connecting part abuts against the other end of the first connecting part. The cross-sectional area of the large end of the second connecting part is greater than the cross-sectional area of the first connecting part.
8. The brake pedal assembly of claim 1, wherein: The noise reduction piece further comprises a connecting part connected to one of the pedal support and the pedal arm. The connecting part is an end surface of the second noise reduction part away from the first noise reduction part. The connecting part is connected to the one of the pedal support and the pedal arm by adhesion.
9. The brake pedal assembly of claim 1, wherein: The noise reduction piece is made of rubber material.
10. A noise reduction member for a brake pedal assembly, comprising: The noise reduction piece is made of rubber material. The noise reduction piece comprises a first noise reduction part and a second noise reduction part arranged in sequence along an axial direction. The first noise reduction part has a distal end away from the second noise reduction part and a proximal end abutting against the second noise reduction part. The cross-sectional area of the first noise reduction part gradually increases from the distal end to the proximal end. The cross-sectional area of the proximal end of the first noise reduction part is less than the cross-sectional area of the second noise reduction part.