Electric car brake spring assembly

By incorporating a multi-layered spring sheet structure into the brake spring assembly, the problem of spring force loss in traditional brake spring sheets is solved, thereby improving the stability and safety of the braking system.

CN224161980UActive Publication Date: 2026-04-24ZHEJIANG TIANYUE AUTO MOTIVE BRAKE SYST CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
ZHEJIANG TIANYUE AUTO MOTIVE BRAKE SYST CO LTD
Filing Date
2025-02-19
Publication Date
2026-04-24

AI Technical Summary

Technical Problem

Traditional brake springs gradually lose their elasticity after prolonged use, causing the brake pads to fail to return to their original position, thus affecting the sensitivity and safety of the braking system.

Method used

Design a tram brake spring assembly, including a support frame and a fixed bracket. Multiple spring sheets are stacked from top to bottom inside the arc-shaped part. Each spring sheet consists of a base layer, a corrosion-resistant layer, and a protective layer. The base layer is made of stainless steel, the corrosion-resistant layer is made of copper, and the protective layer is made of tin, which enhances the elasticity and durability of the spring sheets.

Benefits of technology

It improves the elasticity and load-bearing capacity of brake springs, extends service life, ensures that brake pads return to their original position quickly after braking, enhances the performance and safety of the braking system, and reduces elasticity loss caused by corrosion and wear.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model provides an electric car brake spring assembly, which relates to the technical field of brake springs and comprises a supporting frame, a fixing support is arranged at the bottom of the supporting frame, arc-shaped pieces are fixedly connected to the two sides of the fixing support, arc-shaped spring pieces are arranged on the inner peripheries of the arc-shaped pieces on the two sides, and after a traditional brake spring piece is used for a long time, the arc-shaped spring pieces cannot be damaged. The elastic force effect is gradually lost due to the borne continuous pressure, so that the brake cannot return; the arc-shaped spring piece is arranged on the inner periphery of the arc-shaped piece, the elasticity of the brake spring assembly can be effectively enhanced, the brake spring assembly can better deal with pressure changes in the braking process, the good elasticity effect can be kept even after long-time use, and therefore it is guaranteed that the brake pad can rapidly and completely return after braking.
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Description

Technical Field

[0001] This utility model relates to the field of brake spring technology, and in particular to a tram brake spring assembly. Background Technology

[0002] The electric vehicle brake spring assembly mainly consists of brake spring pads, brake pedal, brake, brake calipers, etc. These components, connected to the brake spring pads, together form the braking system. The primary function of the brake spring pads is to ensure the stability of components on the shaft or in the bore, and also to act as a warning sign for brake pad wear. The brake spring pads ensure the stability of the braking system components, preventing lateral movement of parts on the shaft or in the bore, and ensuring a certain clearance between the brake pads and the brake disc during braking, preventing excessive wear or jamming. Furthermore, the brake spring pads act as a warning sign for brake pad wear; once the brake pads wear down to the spring pad position, they will rub against the brake disc, producing a metallic sound, reminding the driver to replace the brake pads, thus preventing the braking system from failing due to excessive brake pad wear. During braking, the brake spring pads also act as a buffer, absorbing some of the impact force, reducing noise, and protecting the braking system components from damage. Simultaneously, they help the brake pads quickly return to their original position when not braking, preventing continuous friction between the brake pads and the brake disc, and extending the service life of both the brake pads and the brake disc.

[0003] Traditional brake springs gradually lose their elasticity over time, leading to brake failure to return to their original position. Brake springs play a crucial role in the braking system, ensuring that the brake pads return to their original position quickly and completely after braking. However, over time, brake springs bend due to continuous pressure, gradually losing their elasticity. This weakening or loss of elasticity directly affects the normal operation of the braking system, causing brake failure to return to its original position. This failure not only affects the sensitivity and accuracy of braking but may also accelerate the wear of brake pads and brake discs, potentially leading to more serious safety issues. Therefore, we propose a trolley brake spring assembly. Utility Model Content

[0004] The purpose of this invention is to provide a tram brake spring assembly to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A tram brake spring assembly includes a support frame, a fixed bracket at the bottom of the support frame, and arc-shaped components fixedly connected to both sides of the fixed bracket. Arc-shaped spring sheets are provided inside the arc-shaped components on both sides.

[0007] As a preferred embodiment of this utility model, the arc-shaped component is provided with multiple spring plates inside.

[0008] As a preferred embodiment of this utility model, a plurality of the spring sheets are stacked from top to bottom.

[0009] The technical effects of adopting the above-mentioned further solution are as follows: the stacked multiple spring plates improve the elasticity and load-bearing capacity of the brake spring plates. By setting multiple plates stacked sequentially from top to bottom inside the arc-shaped component, the elasticity of the brake spring plates can be significantly increased, allowing the brake spring plates to deform better and absorb energy when subjected to external forces, thereby improving their buffering and shock absorption capabilities. In addition, the stacked spring plates can also ensure that a certain gap is maintained between the brake pads and the brake disc, preventing excessive wear or jamming, and further improving the performance and safety of the braking system.

[0010] As a preferred embodiment of this utility model, the interior of the multiple spring sheet bodies is composed of a base layer, a corrosion-resistant layer and a protective layer. The corrosion-resistant layer is provided around the base layer, and the protective layer is provided around the corrosion-resistant layer.

[0011] As a preferred embodiment of this utility model, the base layer is made of stainless steel sheet.

[0012] The technical effects of adopting the above-mentioned further solution are as follows: the base layer of the spring plate is made of stainless steel, which further improves the overall performance of the brake spring plate. The stainless steel plate has excellent corrosion resistance and strength, which can effectively resist the friction and high temperature generated during braking and prevent the spring plate from failing due to corrosion or wear. In addition, the stainless steel plate also has good elasticity and toughness, which can ensure that the brake spring plate maintains stable performance during long-term use and extend its service life.

[0013] As a preferred embodiment of this invention, the corrosion-resistant layer is made of copper.

[0014] The technical effects of adopting the above-mentioned further solutions are as follows: copper material has excellent corrosion resistance, preventing the spring sheet from failing due to corrosion. Copper material also has good ductility and plasticity, which can ensure that the brake spring sheet maintains stable performance during long-term use and is not prone to deformation or breakage. As a corrosion-resistant layer, copper material can significantly extend the service life of the brake spring sheet and improve the reliability and safety of the braking system.

[0015] As a preferred embodiment of this invention, the protective layer is made of tin.

[0016] The technical effects of adopting the above-mentioned further solutions are as follows: Tin material has good corrosion resistance and wear resistance, which can effectively resist the friction and corrosion generated during braking, and prevent the spring sheet from failing due to corrosion or wear. In addition, tin material also has a certain degree of lubrication, which can reduce the coefficient of friction between the brake spring sheet and the brake disc, thereby reducing noise and wear, and improving the comfort and stability of braking.

[0017] As a preferred embodiment of this utility model, both the support frame and the fixed bracket have through holes at their tops, and the support frame and the fixed bracket are riveted together.

[0018] Compared with the prior art, the beneficial effects of this utility model are:

[0019] 1. In this utility model, traditional brake spring pads gradually lose their elasticity after prolonged use due to continuous pressure, resulting in the brake pads not returning to their original position. However, by setting an arc-shaped spring pad inside the arc-shaped component, the elasticity of the brake spring assembly can be effectively enhanced, enabling the brake spring assembly to better cope with pressure changes during braking. Even after prolonged use, it can maintain a good elasticity, thereby ensuring that the brake pads can quickly and completely return to their original position after braking.

[0020] 2. In this utility model, by setting multiple spring plates stacked from top to bottom inside the arc-shaped component, not only is the overall structural strength of the brake spring assembly enhanced, but the spring plates can also better disperse and absorb the pressure generated during braking, thereby extending the spring's elastic life. Simultaneously, the spring plate's interior consists of a base layer, a corrosion-resistant layer, and a protective layer. The base layer is made of stainless steel, improving the spring's strength and durability; the corrosion-resistant layer is made of copper, effectively resisting corrosion generated during braking; and the protective layer is made of tin, further enhancing the spring's corrosion resistance and wear resistance. This multi-layered material design allows the brake spring assembly to better adapt to harsh braking environments, reducing elasticity loss due to corrosion and wear. Compared to traditional brake spring plates, this utility model optimizes the structure and materials, improving elasticity durability and corrosion resistance. Attached Figure Description

[0021] Figure 1 A schematic diagram of the overall structure of a tram brake spring assembly provided by this utility model;

[0022] Figure 2 A schematic diagram of the overall structure of a support frame for a tram brake spring assembly provided by this utility model;

[0023] Figure 3 A schematic diagram of the overall structure of the fixing bracket and arc-shaped component of a tram brake spring assembly provided by this utility model;

[0024] Figure 4 A schematic diagram of the internal structure of the arc-shaped component of a tram brake spring assembly provided by this utility model;

[0025] Figure 5 A schematic diagram of the internal structure of the spring plate of a tram brake spring assembly provided by this utility model.

[0026] Legend: 1. Support frame; 2. Fixed bracket; 3. Arc-shaped component; 301. Spring sheet body; 3011. Base layer; 3012. Corrosion-resistant layer; 3013. Protective layer; 4. Arc-shaped spring sheet; 5. Through hole. Detailed Implementation

[0027] The technical solutions of the present utility model will be clearly and completely described below with reference to the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0028] To facilitate understanding of this utility model, a more comprehensive description of this utility model will be provided below with reference to relevant embodiments, and several embodiments of this utility model will be given. However, this utility model can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of this utility model more thorough and complete.

[0029] It should be noted that when an element is referred to as being "fixed to" another element, it can be directly on the other element or there may be an intervening element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or there may be an intervening element. The terms "vertical," "horizontal," "left," "right," and similar expressions used in this document are for illustrative purposes only.

[0030] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0031] Example 1

[0032] like Figure 1-5As shown, this utility model provides a technical solution: a tram brake spring assembly, including a support frame 1, a fixed bracket 2 at the bottom of the support frame 1, and arc-shaped parts 3 fixedly connected to both sides of the fixed bracket 2. Arc-shaped spring sheets 4 are arranged inside the arc-shaped parts 3 on both sides. By arranging arc-shaped spring sheets 4 inside the arc-shaped parts 3, the elasticity of the brake spring assembly can be effectively enhanced, ensuring that the brake pads can quickly and completely return to their original position after braking. Multiple spring sheet bodies 301 are arranged inside the arc-shaped parts 3. The multiple spring plates 301 stacked from top to bottom enhance the elasticity and load-bearing capacity of the brake spring plates. By setting multiple plates stacked sequentially from top to bottom inside the arc-shaped part 3, the elasticity of the brake spring plates can be significantly increased, allowing the brake spring plates to deform better and absorb energy when subjected to external forces, thereby improving their buffering and shock absorption capabilities. In addition, the stacked spring plates 301 can also ensure that a certain gap is maintained between the brake pads and the brake disc, preventing excessive wear or jamming, further improving the performance and safety of the braking system.

[0033] Example 2

[0034] like Figure 1-5As shown, a tram brake spring assembly comprises multiple spring plates 301 internally composed of a base layer 3011, a corrosion-resistant layer 3012, and a protective layer 3013. The base layer 3011 is surrounded by the corrosion-resistant layer 3012, and the corrosion-resistant layer 3012 is surrounded by the protective layer 3013. The base layer 3011 is made of stainless steel, further enhancing the overall performance of the brake spring plates. Stainless steel possesses excellent corrosion resistance and strength, effectively resisting friction and high temperatures generated during braking, preventing the spring plates 301 from failing due to corrosion or wear. Furthermore, stainless steel also exhibits good elasticity and toughness, ensuring stable performance of the brake spring plates during long-term use and extending their service life. The corrosion-resistant layer 3012 is made of copper, which possesses excellent... The copper material provides corrosion resistance, preventing the brake spring from failing due to corrosion. It also possesses good ductility and plasticity, ensuring stable performance of the brake spring during long-term use, preventing deformation or breakage. As the corrosion-resistant layer 3012, the copper material significantly extends the service life of the brake spring, improving the reliability and safety of the braking system. The protective layer 3013 uses tin, which has excellent corrosion resistance and wear resistance, effectively resisting friction and corrosion generated during braking, preventing the spring from failing due to corrosion or wear. Furthermore, tin has a certain degree of lubrication, reducing the coefficient of friction between the brake spring and the brake disc, thereby reducing noise and wear, and improving braking comfort and stability. Both the support frame 1 and the fixed bracket 2 have through holes 5 at their tops, and are riveted together.

[0035] In summary: By incorporating an arc-shaped spring sheet 4 within the arc-shaped component 3, the elasticity of the brake spring assembly can be effectively enhanced, enabling the assembly to better cope with pressure changes during braking. Even after prolonged use, it maintains good elasticity, ensuring the brake pads return to their original position quickly and completely after braking. Furthermore, by arranging multiple stacked spring sheets 301 inside the arc-shaped component 3, not only is the overall structural strength of the brake spring assembly enhanced, but the spring sheets 301 also better disperse and absorb the pressure generated during braking, thus extending the spring's lifespan. Simultaneously, the spring sheets 301... The internal structure consists of a base layer 3011, a corrosion-resistant layer 3012, and a protective layer 3013. The base layer 3011 is made of stainless steel, which improves the strength and durability of the spring. The corrosion-resistant layer 3012 is made of copper, which effectively resists corrosion generated during braking. The protective layer 3013 is made of tin, which further enhances the spring's corrosion resistance and wear resistance. The multi-layer material design allows the brake spring assembly to better adapt to harsh braking environments and reduces the loss of elasticity caused by corrosion and wear. Compared with traditional brake spring pads, this invention has optimized the structure and materials, improving the durability of elasticity and corrosion resistance.

[0036] Although embodiments of the present 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 present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A tram brake spring assembly, comprising a support frame (1), characterized in that: The support frame (1) is provided with a fixed bracket (2) at the bottom. Both sides of the fixed bracket (2) are fixedly connected with arc-shaped parts (3). Arc-shaped spring sheets (4) are provided inside the arc-shaped parts (3) on both sides.

2. The tram brake spring assembly according to claim 1, characterized in that: The arc-shaped component (3) has multiple spring plates (301) inside.

3. The tram brake spring assembly according to claim 2, characterized in that: Multiple spring sheet bodies (301) are stacked from top to bottom.

4. The tram brake spring assembly according to claim 1, characterized in that: The interior of the multiple spring sheet bodies (301) is composed of a base layer (3011), a corrosion-resistant layer (3012) and a protective layer (3013). The base layer (3011) is surrounded by a corrosion-resistant layer (3012), and the corrosion-resistant layer (3012) is surrounded by a protective layer (3013).

5. A tram brake spring assembly according to claim 4, characterized in that: The base layer (3011) is made of stainless steel sheet.

6. A tram brake spring assembly according to claim 4, characterized in that: The corrosion-resistant layer (3012) is made of copper.

7. A tram brake spring assembly according to claim 4, characterized in that: The protective layer (3013) is made of tin.

8. A tram brake spring assembly according to claim 1, characterized in that: Both the support frame (1) and the fixed bracket (2) have through holes (5) at their tops, and the support frame (1) and the fixed bracket (2) are riveted together.