CN220416060U - Heat insulation type piston structure - Google Patents
Heat insulation type piston structure Download PDFInfo
- Publication number
- CN220416060U CN220416060U CN202322174312.1U CN202322174312U CN220416060U CN 220416060 U CN220416060 U CN 220416060U CN 202322174312 U CN202322174312 U CN 202322174312U CN 220416060 U CN220416060 U CN 220416060U
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- CN
- China
- Prior art keywords
- piston
- heat insulation
- piston body
- heat
- insulation plug
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- 238000009413 insulation Methods 0.000 title claims abstract description 36
- 230000017525 heat dissipation Effects 0.000 claims abstract description 24
- 239000000463 material Substances 0.000 claims abstract description 8
- 238000009434 installation Methods 0.000 claims description 20
- 238000000034 method Methods 0.000 claims description 7
- 238000009423 ventilation Methods 0.000 claims description 7
- 238000004663 powder metallurgy Methods 0.000 claims description 5
- 230000005855 radiation Effects 0.000 claims description 3
- 230000009286 beneficial effect Effects 0.000 abstract description 3
- 230000000694 effects Effects 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 3
- 238000009826 distribution Methods 0.000 description 2
- 239000010720 hydraulic oil Substances 0.000 description 2
- 230000002035 prolonged effect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 230000007847 structural defect Effects 0.000 description 1
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- Braking Arrangements (AREA)
Abstract
The utility model relates to a heat-insulating piston structure, which comprises a piston body, wherein one end of the piston body is provided with a heat-insulating plug with different materials from the piston body, one end of the heat-insulating plug is contacted with a brake pad through a heat dissipation structure, and the other end of the heat-insulating plug is arranged in the piston body through a mounting structure, and the heat-insulating piston structure has the beneficial effects that: the design of the heat insulation plug prevents the piston body and the brake pad from directly conducting heat, improves the braking safety, and prolongs the service life of the brake caliper.
Description
Technical Field
The utility model relates to the field of brake system parts, in particular to a heat-insulating piston structure.
Background
In brake calipers of vehicles such as motorcycles, electric vehicles and the like, a piston on the brake calipers is ejected out by applying hydraulic pressure to realize friction braking with a vehicle hub, in the braking process, especially in the occasion of frequent braking such as long downhill, a brake block connected with the front end of a brake piston can transfer heat generated by friction into the brake, on one hand, the heat can raise the temperature of a mechanical structure of the brake, and the clearance between parts is reduced by the heat caused by the heat, so that interference problem is easy to occur; on the other hand, the gas in the hydraulic oil is heated and separated out, and bubbles clamped in the hydraulic oil can cause problems of unsmooth and invalid actions of ejecting the piston, and finally can cause the reduction of the braking capability of the vehicle and even the invalidation;
for this purpose, the patent numbers are: the utility model patent of CN 109667859B discloses a heat dissipation brake piston, which adopts a piston column and a nose part which is positioned at the front end of the piston column and is used for connecting a brake block, the nose part comprises a connecting section (1) fixedly connected with the piston column, a mounting section (2) connected with the brake block and a heat dissipation section (3) positioned between the connecting section (1) and the mounting section (2), the heat dissipation section (3) comprises a plurality of heat dissipation columns (31) with two ends respectively connected with the connecting section (1) and the mounting section (2), a fluid passage (32) is formed in an interval space between the heat dissipation columns (31), the heat dissipation columns (31) comprise a cylindrical core body (311) and a shell (312) positioned at the outer side of the core body (311), the shell (312) is in a cylinder shape, the side surface of the shell is provided with an opening (314) extending along the axial direction, two ends of the shell (312) are fixedly connected with the connecting section (1) and the mounting section (2) respectively, one end of the core body (311) connected with the mounting section (2) is provided with an outward extending heat dissipation part (313), the heat dissipation part (313) is attached to the heat dissipation section (314) and provided with an outward opening (315) from the side surface (315), the heat dissipation fin (315) comprises a plurality of first fins (3151) extending along the same direction with the axis of the core body (311) and second fins (3152) perpendicular to the first fins (3151), the distance that the first fins (3151) extend outwards from the side surface of the core body (311) is smaller than the distance that the second fins (3152) extend outwards from the side surface of the core body (311), namely, a heat conduction and heat dissipation structure is adopted to take away the heat of a piston by natural wind, but the structural defects are obvious, the heat dissipation column (31) arranged on the heat dissipation fin is difficult to process due to the small volume of the piston, the efficiency is low in practical production, the cost is high, and improvement is necessary.
Disclosure of Invention
The technical problem to be solved by the present utility model is to address the above-mentioned shortcomings of the prior art,
an insulated piston structure is provided.
In order to achieve the above purpose, the present utility model provides the following technical solutions: the utility model provides a thermal-insulated formula piston structure, includes piston body, its characterized in that: one end of the piston body is provided with a heat insulation plug which is made of different materials from the piston body, and one end of the heat insulation plug is contacted with the brake block through a heat dissipation structure, and the other end of the heat insulation plug is arranged in the piston body through a mounting structure.
Adopt above-mentioned technical scheme, among the prior art, the piston body is the structure of either being integrative with the piston body towards the one end of brake block, or comes out at this end processing heat radiation structure, if the patent number is: the brake piston of CN 109667859B is a special-shaped piece which is suitable for heat dissipation, the mode is complex, the cost is high, the efficiency is low, the brake piston is not suitable for mass production and use, the heat dissipation effect of the integrated piston is poor, and the service life of the brake caliper is short.
The heat-insulating piston structure may further be configured to: the heat radiation structure comprises a friction plane, wherein the heat insulation plug is far away from one end of the piston body, at least four friction convex blocks are distributed on the friction plane at intervals, and ventilation grooves are formed between every two adjacent friction convex blocks.
By adopting the technical scheme, through the design of the interval distribution of the friction convex blocks and the ventilation grooves, the original function of the piston is guaranteed, the design of the ventilation grooves can ensure the heat dissipation effect of the heat insulation plug, heat transfer to the piston body is avoided, and the service life of the caliper is prolonged.
The heat-insulating piston structure may further be configured to: the installation structure comprises an installation column, wherein the installation column is arranged to extend from one end, close to the piston body, of the heat insulation plug to the piston body, the outer diameter of the installation column is smaller than the inner diameter of the piston body, and the installation column is provided with a guide structure.
By adopting the technical scheme, the heat insulation plug is inserted into the piston body through the mounting column and is propped against the inner wall of the piston through the guide structure, so that the installation is completed, and the installation is more convenient due to the guide structure.
The heat-insulating piston structure may further be configured to: the guide structure comprises a plurality of guide blocks which are circumferentially arranged at intervals at the joint of the installation column and the heat insulation plug, wherein the guide blocks are provided with guide surfaces which are obliquely arranged, and the guide surfaces gradually decrease from one end close to the heat insulation plug to one end far away from the heat insulation plug.
By adopting the technical scheme, through setting up the guide block and setting up the guide surface of slope on the guide block, each guide block makes to form the conical surface on the erection column to make the erection column install in the piston body more easily.
The heat-insulating piston structure may further be configured to: the heat insulation plug is manufactured by a powder metallurgy process.
The heat-insulating piston structure may further be configured to: the insulating plug is made of rubber.
By adopting the technical scheme, the heat insulation plug is manufactured by a powder metallurgy process or is directly manufactured by a rubber material, so that the material of the heat insulation plug is different from that of the piston body, and the brake pad and the piston body are prevented from directly conducting heat.
The beneficial effects of the utility model are as follows: the design of the heat insulation plug prevents the piston body and the brake pad from directly conducting heat, improves the braking safety, and prolongs the service life of the brake caliper.
The utility model is described in further detail below with reference to the drawings and examples.
Drawings
FIG. 1 is a schematic perspective view of an embodiment of the present utility model;
FIG. 2 is a schematic diagram of a split structure according to an embodiment of the present utility model;
FIG. 3 is a schematic view of a perspective structure of a heat insulating plug according to an embodiment of the present utility model 1;
fig. 4 is a schematic perspective view 2 of a heat insulation plug according to an embodiment of the present utility model.
Detailed Description
The heat-insulating piston structure as shown in fig. 1 to 4 comprises a piston body 1, wherein one end of the piston body 1 is provided with a heat-insulating plug 2 with a material different from that of the piston body 1, and one end of the heat-insulating plug 2 is contacted with a brake pad (arranged on a brake caliper) through a heat-radiating structure, and the other end is arranged in the piston body 1 through a mounting structure.
In the prior art, one end of the piston body facing the brake pad is either of an integral structure with the piston body or is provided with a heat dissipation structure at the end, for example, the patent number is: the brake piston of CN 109667859B is a special-shaped piece which is suitable for heat dissipation, the mode is complex, the cost is high, the efficiency is low, the brake piston is not suitable for mass production and use, the heat dissipation effect of the integrated piston is poor, and the service life of the brake caliper is short;
the heat dissipation structure comprises a friction plane 21 arranged at one end of the heat insulation plug 2 far away from the piston body 1, six friction convex blocks 22 are distributed on the friction plane 21 at intervals, and ventilation grooves 23 are arranged between adjacent friction convex blocks 22;
through the design of the interval distribution of the friction convex blocks and the ventilation grooves, the original function of the piston is guaranteed, the design of the ventilation grooves can ensure the heat dissipation effect of the heat insulation plug, heat is prevented from being transferred into the piston body, and the service life of the caliper is prolonged;
the installation structure comprises an installation column 24 which is arranged to extend towards the piston body 1 near one end of the piston body 1, wherein the outer diameter of the installation column 24 is smaller than the inner diameter of the piston body 1, and a guide structure is arranged on the installation column 24;
the heat insulation plug 2 is inserted into the piston body 1 through the mounting column 24 and abuts against the inner wall of the piston body 1 through the guide structure, so that the installation is completed, and the installation is more convenient due to the guide structure;
the guide structure comprises a plurality of guide blocks 241 which are circumferentially arranged at intervals at the joint of the mounting column 24 and the heat insulation plug 2, wherein the guide blocks 241 are provided with guide surfaces 2411 which are obliquely arranged, and the guide surfaces 2411 gradually decrease from the end close to the heat insulation plug 2 to the end far from the heat insulation plug 2;
through setting up the guide block and setting up the guide surface of slope on the guide block, each guide block makes to form the conical surface on the erection column to make the erection column install in the piston body more easily.
The heat insulating plug is made by a powder metallurgy process, and the heat insulating plug can also be made of rubber.
By adopting the technical scheme, the heat insulation plug is manufactured by a powder metallurgy process or is directly manufactured by a rubber material, so that the material of the heat insulation plug is different from that of the piston body, and the brake pad and the piston body are prevented from directly conducting heat.
The beneficial effects of the utility model are as follows: the design of the heat insulation plug prevents the piston body and the brake pad from directly conducting heat, improves the braking safety, and prolongs the service life of the brake caliper.
Claims (6)
1. The utility model provides a thermal-insulated formula piston structure, includes piston body, its characterized in that: one end of the piston body is provided with a heat insulation plug which is made of different materials from the piston body, and one end of the heat insulation plug is contacted with the brake block through a heat dissipation structure, and the other end of the heat insulation plug is arranged in the piston body through a mounting structure.
2. A thermally insulated piston structure as set forth in claim 1 wherein: the heat radiation structure comprises a friction plane, wherein the heat insulation plug is far away from one end of the piston body, at least four friction convex blocks are distributed on the friction plane at intervals, and ventilation grooves are formed between every two adjacent friction convex blocks.
3. A thermally insulated piston structure as set forth in claim 1 wherein: the installation structure comprises an installation column, wherein the installation column is arranged to extend from one end, close to the piston body, of the heat insulation plug to the piston body, the outer diameter of the installation column is smaller than the inner diameter of the piston body, and the installation column is provided with a guide structure.
4. A thermally insulated piston structure according to claim 3, wherein: the guide structure comprises a plurality of guide blocks which are circumferentially arranged at intervals at the joint of the installation column and the heat insulation plug, wherein the guide blocks are provided with guide surfaces which are obliquely arranged, and the guide surfaces gradually decrease from one end close to the heat insulation plug to one end far away from the heat insulation plug.
5. The thermally insulated piston structure of claim 4, wherein: the heat insulation plug is manufactured by a powder metallurgy process.
6. The thermally insulated piston structure of claim 4, wherein: the insulating plug is made of rubber.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322174312.1U CN220416060U (en) | 2023-08-11 | 2023-08-11 | Heat insulation type piston structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322174312.1U CN220416060U (en) | 2023-08-11 | 2023-08-11 | Heat insulation type piston structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220416060U true CN220416060U (en) | 2024-01-30 |
Family
ID=89647810
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322174312.1U Active CN220416060U (en) | 2023-08-11 | 2023-08-11 | Heat insulation type piston structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220416060U (en) |
-
2023
- 2023-08-11 CN CN202322174312.1U patent/CN220416060U/en active Active
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| Date | Code | Title | Description |
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| GR01 | Patent grant | ||
| GR01 | Patent grant |