Brake caliper with multiple use modes

Abstract

A brake caliper with multiple use modes comprises a caliper shell provided with a piston cavity and a brake space; the oil pipe joint is communicated with the piston chamber; a brake pad assembly disposed in the brake space; the reset component acts on the brake pad assembly; the brake caliper piston is movably arranged in the piston chamber; and the heat dissipation element is detachably installed between the brake pad assembly and the caliper shell, and the brake pad assembly at least comprises a basic friction plate area and a thickened friction plate area. Two different use modes are provided for the front section and the rear section of the brake pad assembly, so that the brake wear thickness of the brake pad assembly capable of working is increased, and theoretically, the use thickness of the brake pad assembly is about two times that of an existing brake pad in the market; therefore, the single brake pad assembly can provide longer use time, and the use consumption cost of a user is reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to the product technical field of hydraulic brake caliper, especially a brake caliper with multiple use modes. BACKGROUND

[0002] Hydraulic brake caliper is a key component in the braking system. It mainly realizes the brake function through hydraulic drive. When the driver steps on the brake pedal, the hydraulic oil in the brake master cylinder flows to the brake caliper through the brake pipeline under the action of pressure. The brake caliper has a piston inside, and the hydraulic oil pushes the piston to make it move and press the brake pad, so that the brake pad tightly contacts the brake disc, thereby generating friction to make the wheels slow down or stop rotating. The structural composition is as follows: 1. Caliper body: this is the shell of the brake caliper, usually made of aluminum alloy and other materials. The advantage of aluminum alloy material is light weight and good heat dissipation. It plays the role of supporting and fixing the internal components, and can withstand the pressure exerted by the piston. 2. Piston: the piston is the component that directly pushes the brake pad. The number of pistons can be different, and common ones are single-piston, double-piston, four-piston, and even six-piston. Multiple-piston calipers can provide more uniform pressure distribution and stronger braking force. For example, on high-performance cars, four-piston or six-piston calipers can make the brake pad clamp the brake disc more quickly and powerfully, achieving shorter braking distance. The piston is usually made of metal material, and its surface needs high-precision machining to ensure good sealing and smooth movement. 3. Brake pad slot: used to install and fix the brake pad. The slot ensures that the brake pad does not shift during operation and can be accurately pushed by the piston and contacted with the brake disc. 4. Hydraulic oil channel: it is the channel connecting the brake master cylinder and the piston, through which the hydraulic oil enters the caliper to push the piston. The sealing of the channel is crucial, and any leakage will cause brake failure.

[0003] This paper relates to a floating caliper, which is characterized by the fact that the caliper body can float within a certain range. During braking, the piston pushes the brake pad on one side to approach the brake disc, while the caliper body moves to the other side under the action of the reaction force, so that the brake pad on the other side can also clamp the brake disc. The floating caliper structure is relatively simple and low in cost, and is widely used in ordinary passenger cars. Prior art example, refer to patent document CN219159407U, discloses a ten-piston brake caliper, including a caliper body, a friction plate assembly for cooperating with the brake disc, and an anti-collision sheet for preventing collision and damping, the inner surface of the caliper body forms a brake slot, and the friction plate assembly is arranged in the brake slot; the anti-collision sheet is connected to the brake slot through a connecting piece; the friction plate assembly includes two mirror-symmetrical friction plate structures, and the anti-collision sheet is located on one side of the friction plate structure and cooperates with the friction plate structure.

[0004] It is important to note that the thickness of the brake pad is an important parameter, which is directly related to the braking performance and driving safety of the vehicle. When the brake pad is worn to a certain extent, it needs to be replaced. Generally, the wear limit thickness of the brake pad is 2-3mm. Because the brake pad is too thin, the braking performance will decrease and the braking distance will increase. Moreover, when the brake pad is too thin, the brake disc may be damaged, increasing the maintenance cost. For example, if the friction material of the brake pad is completely worn out, the metal back plate will directly contact the brake disc, which will scratch the brake disc and even cause the brake disc to deform.

[0005] In other words, the thicker the brake pad is, the more likely it is to be completely scrapped after the brake pad is worn out without other auxiliary structures. On the other hand, it is particularly pointed out that the increase in the thickness of a single brake pad has little change in production cost and procurement cost, which can be almost ignored; however, if the same brake pad is replaced once, the procurement and use cost will double. SUMMARY

[0006] In order to overcome the above-mentioned deficiencies of the prior art, the utility model provides a brake caliper with multiple use modes.

[0007] The technical scheme for solving the technical problems of the utility model is: a brake caliper with multiple use modes, comprising:

[0008] The caliper shell is provided with a piston chamber, and a brake space is formed in the caliper shell;

[0009] The oil pipe joint is arranged on the caliper shell and communicated with the piston chamber;

[0010] The brake pad assembly is arranged in the brake space;

[0011] The reset member acts on the brake pad assembly, so that the brake pad assembly always has a movement trend away from the brake pad;

[0012] A plurality of brake caliper pistons are movably arranged in the piston chamber, and the brake caliper pistons are distributed on both sides of the brake space. The brake caliper pistons act on the brake pad assembly and offset the force of the reset member, so that the brake pad assembly can contact the brake disc to realize braking;

[0013] Further comprising a heat dissipation element, the heat dissipation element is detachably mounted between the brake pad assembly and the caliper shell, and the brake pad assembly at least includes a basic friction plate area and a thickened friction plate area;

[0014] In the early stage of use of the brake pad assembly, the heat dissipation element is detached from the caliper shell, and the brake pad assembly is assembled on the caliper shell alone, at this time the thickened friction plate area on the brake pad assembly contacts the brake disc and realizes friction braking;

[0015] In the later stage of use of the brake pad assembly, the thickened friction plate area on the brake pad assembly forms a brake pad gap after wear, and the heat dissipation element is assembled to the caliper shell to supplement the brake pad gap, at this time the basic friction plate area on the brake pad assembly contacts the brake disc and realizes friction braking.

[0016] The brake pad assembly is provided with a replacement prompting member, and the replacement prompting member is arranged at the junction of the basic friction plate area and the thickened friction plate area.

[0017] One of the preferred schemes of the replacement prompting member is that the replacement prompting member is provided with a plurality of first pattern depth grooves on the thickened friction plate area, and the depth of the first pattern depth groove is consistent with the thickness of the thickened friction plate area.

[0018] Further, a plurality of second pattern depth grooves are arranged on the basic friction plate area, the depth of the second pattern depth groove is consistent with the thickness of the basic friction plate area, and the second pattern depth groove and the first pattern depth groove are distributed in a staggered manner.

[0019] The second preferred scheme of the replacement prompting member is that the replacement prompting member is a color identification layer, and the color identification layer is coated at the junction of the basic friction plate area and the thickened friction plate area.

[0020] In some preferred embodiments of the utility model, the heat dissipation element comprises a heat conduction section and a heat dissipation fin section;

[0021] The heat conduction section is located in the brake space, and the brake pad is attached to the heat conduction section.

[0022] The heat dissipation fin section extends out of the brake space.

[0023] Optionally, the heat conduction section and the heat dissipation fin section are integrally formed.

[0024] In some preferred embodiments of the utility model, the reset member, the brake pad assembly, the heat dissipation element and the caliper body are sequentially arranged from inside to outside, and a through connecting hole is arranged on the reset member, the brake pad assembly, the heat dissipation element and the caliper body, a connecting pin is inserted into the connecting hole, so that the reset member, the brake pad assembly, the heat dissipation element and the caliper body are assembled and fastened with each other.

[0025] In some preferred embodiments of the utility model, the thickness of the basic friction plate area is L1, the thickness of the thickened friction plate area is L2, the thickness of the heat dissipation element is D1, and L1=L2 is satisfied.

[0026] The utility model has the advantages of:

[0027] I. In the front and rear sections of the brake pad assembly, two different usage modes are provided to increase the brake pad assembly's working brake wear thickness. In theory, the thickness of the brake pad assembly in the application is about twice the thickness of the brake pad on the market, so the single brake pad assembly can provide a longer service life to reduce the user's consumption cost.

[0028] II. In the early stage of use of the brake pad assembly, the braking effect is good because it is in a new state. In the later stage of use of the brake pad assembly, the brake pad assembly only has the basic friction plate area working, so if you want to get good braking force, it may generate more heat. At this time, the heat dissipation element can timely discharge heat and reduce the heat decay effect, thereby ensuring that the brake pad assembly still has good braking effect in the later stage of use.

[0029] III. After the thickened friction plate area is worn, the overall thickness of the brake pad assembly is reduced, which increases the distance between the brake pad assembly and the brake disc, easily leading to a decrease in braking performance and a longer braking distance. The heat dissipation element can fill the extra brake pad gap to reduce the push-out distance of the brake pad assembly in the later stage of use and provide good braking performance. BRIEF DESCRIPTION OF DRAWINGS

[0030] Figure 1 is a structure schematic view of the early stage of use of the brake pad assembly.

[0031] Figure 2 is a structure schematic view of the later stage of use of the brake pad assembly.

[0032] Figure 3 is an explosion view of the utility model.

[0033] Figure 4 is a sectional view of the early stage of use of the brake pad assembly.

[0034] Figure 5 is a sectional view of the later stage of use of the brake pad assembly.

[0035] Figure 6 is a change schematic view of the brake pad assembly during use.

[0036] Figure 7 is a schematic view of the first and second pattern depth grooves in embodiment two.

[0037] Figure 8 is a schematic view of the color identification layer in Example 2.

[0038] In the figure: 1, caliper housing; 11, piston chamber; 12, brake space; 13, oil pipe joint; 14, connecting hole; 15, connecting pin; 2, brake pad assembly; 21, basic friction plate area; 22, thickened friction plate area; 2a, brake pad gap; 3, reset member; 4, brake caliper piston; 5, brake disc; 6, heat dissipation element; 61, heat conduction section; 62, heat dissipation fin section; 71, first pattern depth groove; 72, second pattern depth groove; 73, color identification layer. DETAILED DESCRIPTION

[0039] The utility model is further described below in combination with the drawings and specific embodiments. It should be noted that the embodiments are only specific elaborations of the utility model, and the purpose is to enable those skilled in the art to better understand the technical scheme of the utility model, and should not be regarded as limiting the utility model.

[0040] In the description of the utility model, it should be noted that, if the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" and the like indicate the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the utility model and simplifying the description, and therefore cannot be understood as limiting the device or element indicated or implied to have a specific orientation, structure and operation, and therefore cannot be understood as limiting the utility model.

[0041] In the description of the utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "mounting", "connecting", "connecting" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium, or it can be connected inside two elements. For those skilled in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.

[0042] Example 1

[0043] Reference Figures 1-8The utility model provides a brake caliper with multiple use modes, which comprises a caliper shell 1, a piston chamber 11 arranged in the caliper shell 1, and a brake space 12 formed in the caliper shell 1; an oil pipe joint 13 arranged on the caliper shell 1 and communicated with the piston chamber 11; a brake pad assembly 2 arranged in the brake space 12; a reset member 3 acting on the brake pad assembly 2 to make the brake pad assembly 2 always have a movement trend away from the brake pad; a plurality of brake caliper pistons 4 movably arranged in the piston chamber 11, the brake caliper pistons 4 being distributed on both sides of the brake space 12, the brake caliper pistons 4 acting on the brake pad assembly 2 and counteracting the force of the reset member 3 to enable the brake pad assembly 2 to contact a brake disc 5 to realize braking.

[0044] It is emphasized that the basic scheme of the embodiment further comprises a heat dissipation element 6, which is detachably mounted between the brake pad assembly 2 and the caliper shell 1, and the brake pad assembly 2 at least comprises a basic friction pad area 21 and a thickened friction pad area 22. The thickness of the basic friction pad area 21 is consistent with the thickness of a conventional brake pad, and the thickened friction pad area 22 is a specially designed structure, which will make the overall thickness of the brake pad assembly 2 in the application greater than the thickness of a conventional brake pad on the market. To match this, the size of the brake space 12 in the caliper shell 1 needs to be increased to meet the installation and use of the brake pad assembly 2.

[0045] The above is the basic structure scheme of the utility model, and the working mechanism is as follows:

[0046] In the early stage of use of the brake pad assembly 2, the heat dissipation element 6 is detached from the caliper shell 1, and the brake pad assembly 2 is assembled on the caliper shell 1 alone, at this time, the thickened friction pad area 22 on the brake pad assembly 2 contacts the brake disc 5 and realizes friction braking;

[0047] In the later stage of use of the brake pad assembly 2, the thickened friction pad area 22 on the brake pad assembly 2 forms a brake pad gap 2a after being worn, the heat dissipation element 6 is assembled on the caliper shell 1 to supplement the brake pad gap 2a, at this time, the basic friction pad area 21 on the brake pad assembly 2 contacts the brake disc 5 and realizes friction braking.

[0048] Compared with the prior art, the structure scheme of the embodiment has at least the following advantages: first, two different use modes are provided for the front and rear sections of the brake pad assembly 2, so that the brake pad assembly 2 can work in a greater brake wear thickness, and theoretically, the thickness of the brake pad assembly 2 is about twice the thickness of the brake pad on the market, so that a single brake pad assembly 2 can provide a longer service life to reduce the user's consumption cost; second, in the early use stage of the brake pad assembly 2, the brake pad assembly 2 is in a relatively new state, so the braking effect is good, and in the later use stage of the brake pad assembly 2, the basic friction plate area 21 of the brake pad assembly 2 is left to work, so that a greater heat generation is generated if a good braking force is to be obtained, and the heat dissipation element 6 can timely discharge heat to reduce the heat decay effect, so that the brake pad assembly 2 still has a good braking effect in the later use stage; third, after the thickened friction plate area 22 is worn, the overall thickness of the brake pad assembly 2 is reduced, which increases the distance between the brake pad assembly 2 and the brake disc 5, and easily leads to a decrease in braking performance and a longer braking distance, and the heat dissipation element 6 can fill the extra brake pad gap 2a to reduce the pushing distance of the brake pad assembly 2 in the later use stage and provide good braking performance.

[0049] Regarding the size relationship between the brake pad assembly 2 and the heat dissipation element 6, preferably, the thickness of the basic friction plate area 21 is L1, the thickness of the thickened friction plate area 22 is L2, and the thickness of the heat dissipation element 6 is D1, and L1=L2 is satisfied. For example, the thickness L1 of the basic friction plate area 21 is 6 mm, the thickness L2 of the thickened friction plate area 22 is 4 mm, and the thickness D1 of the heat dissipation element 6 is 4 mm; when the thickened friction plate area 22 is consumed by about 3-4 mm, the heat dissipation element 6 can be assembled to prolong the service life of a single brake pad assembly 2 and continue to provide good braking function.

[0050] In the utility model, the reset component 3, brake pad assembly 2, heat dissipation element 6 and caliper body are sequentially arranged from inside to outside, and the reset component 3, brake pad assembly 2, heat dissipation element 6 and caliper body are provided with through connecting holes 14, and connecting pins 15 are inserted into the connecting holes 14, so that the reset component 3, brake pad assembly 2, heat dissipation element 6 and caliper body are mutually assembled and fastened.

[0051] Embodiment two

[0052] Between the two stages of the early use stage and the later use stage of the brake pad assembly 2, the heat dissipation element 6 needs to be installed, and ordinary users are difficult to accurately grasp this installation node, and early installation of the heat dissipation element 6 may cause the distance between the brake disc 5 assembly and the brake disc 5 to be too close, increasing the risk of scraping and wear, and late installation of the heat dissipation element 6 will cause the braking effect to be greatly reduced during the use time before installation.

[0053] Therefore, in order to enable the user to distinguish the early and late use of the brake pad assembly 2, and better grasp the installation node of the heat dissipation element 6, the solution provided by the embodiment is that the brake pad assembly 2 is provided with a replacement prompting component, and the replacement prompting component is arranged at the junction of the base friction plate area 21 and the thickened friction plate area 22.

[0054] One of the preferred solutions of the replacement prompting component is that Figure 7 the replacement prompting component is a plurality of first pattern depth grooves 71 opened on the thickened friction plate area 22, and the depth of the first pattern depth groove 71 is consistent with the thickness of the thickened friction plate area 22. When the user checks the brake pad assembly 2, if the first pattern depth groove 71 is not easy to observe and distinguish, it means that the thickened friction plate area 22 is almost consumed, and at this time the heat dissipation element 6 can be assembled to the brake pump body.

[0055] More preferably, a plurality of second pattern depth grooves 72 are opened on the base friction plate area 21, the depth of the second pattern depth groove 72 is consistent with the thickness of the base friction plate area 21, and the second pattern depth groove 72 is distributed in a staggered manner with the first pattern depth groove 71, so as to better observe and distinguish. When the user checks the brake pad assembly 2, if the second pattern depth groove 72 is not easy to observe and distinguish, it means that the base friction plate area 21 is almost consumed, and at this time the remaining brake pad assembly 2 needs to be disassembled and replaced with a brand new brake pad assembly 2 to ensure good braking effect and improve safety.

[0056] The second preferred solution of the replacement prompting component is that Figure 8 the replacement prompting component is a color identification layer 73, and the color identification layer 73 is coated at the junction of the base friction plate area 21 and the thickened friction plate area 22. When the user checks the brake pad assembly 2, if the remaining thickness of the thickened friction plate area 22 is close to the color identification layer 73, it means that the thickened friction plate area 22 is almost consumed, and at this time the heat dissipation element 6 can be assembled to the brake pump body.

[0057] It should be noted that the above-mentioned replacement prompting component is only a preferred embodiment and is not a special limitation. It should be noted that those skilled in the art can make some improvements and decorations without departing from the concept of the present application, and these improvements and decorations should be considered as the protection scope of the present application.

[0058] Embodiment three

[0059] Referring to Figure 3 , Figure 5In some preferred embodiments of the present application, the heat dissipation element 6 comprises a heat conduction section 61 and a heat dissipation fin section 62; the heat conduction section 61 is located in the brake space 12, and the brake pad is attached to the heat conduction section 61, which can form a larger contact heat conduction area with the brake pad assembly 2; the heat dissipation fin section 62 extends out of the brake space 12 to dissipate heat more quickly to the outside air, which has a good heat dissipation effect on the brake pad assembly 2.

[0060] Preferably, the heat conduction section 61 and the heat dissipation fin section 62 are integrally formed. Of course, the heat conduction section 61 and the heat dissipation fin section 62 can also be separately formed and assembled together later.

[0061] It should be noted that other technical solutions of the present application belong to the prior art, and therefore will not be described in detail.

[0062] The above is only the preferred embodiment of the present application, and it should be pointed out that for ordinary skilled in the art, without departing from the concept of the present application, a number of improvements and refinements can be made, which should also be considered as the protection scope of the present application.

Claims

1. A brake caliper with multiple use modes, comprising: a caliper housing (1) in which a piston chamber (11) is arranged, and a brake space (12) is formed in the caliper housing (1); a pipe joint (13) arranged on the caliper housing (1) and communicated with the piston chamber (11); a brake pad assembly (2) arranged in the brake space (12); a reset member (3) acting on the brake pad assembly (2) to make the brake pad assembly (2) always have a movement trend away from the brake pad; a plurality of brake caliper pistons (4) movably arranged in the piston chamber (11), and the brake caliper pistons (4) are distributed on both sides of the brake space (12), the brake caliper pistons (4) act on the brake pad assembly (2) and offset the force of the reset member (3), so that the brake pad assembly (2) can contact the brake disc (5) to realize braking; characterized in that and further comprising a heat dissipation element (6) which is detachably mounted between the brake pad assembly (2) and the caliper housing (1), and the brake pad assembly (2) at least comprises a basic friction pad area (21) and a thickened friction pad area (22); in the early stage of use of the brake pad assembly (2), the heat dissipation element (6) is detached from the caliper housing (1), and the brake pad assembly (2) is assembled on the caliper housing (1) alone, at this time the thickened friction pad area (22) on the brake pad assembly (2) contacts the brake disc (5) and realizes friction braking; in the later stage of use of the brake pad assembly (2), the thickened friction pad area (22) on the brake pad assembly (2) forms a brake pad gap (2a) after wear, and the heat dissipation element (6) is assembled on the caliper housing (1) to supplement the brake pad gap (2a), at this time the basic friction pad area (21) on the brake pad assembly (2) contacts the brake disc (5) and realizes friction braking.

2. Brake caliper with multiple modes of use according to claim 1, characterized in that: The brake pad assembly (2) is provided with a replacement prompt member arranged at the junction of the basic friction pad area (21) and the thickened friction pad area (22).

3. Brake caliper with multiple modes of use according to claim 2, characterized in that: The replacement prompt member is a plurality of first pattern depth grooves (71) formed on the thickened friction pad area (22), and the depth of the first pattern depth groove (71) is consistent with the thickness of the thickened friction pad area (22).

4. The brake caliper with multiple modes of use according to claim 3, characterized in that: A plurality of second pattern depth grooves (72) are formed on the basic friction pad area (21), the depth of the second pattern depth groove (72) is consistent with the thickness of the basic friction pad area (21), and the second pattern depth groove (72) and the first pattern depth groove (71) are distributed in a staggered manner.

5. The brake caliper with multiple modes of use according to claim 2, wherein: The replacement prompt member is a color identification layer (73) coated at the junction of the basic friction pad area (21) and the thickened friction pad area (22).

6. The brake caliper having multiple modes of use of claim 1, wherein: The heat dissipation element (6) comprises a heat conduction section (61) and a heat dissipation fin section (62); The heat conduction section (61) is located in the brake space (12), and the brake pad is attached to the heat conduction section (61); The heat dissipation fin section (62) extends out of the brake space (12).

7. The brake caliper having multiple modes of use of claim 6, wherein: The heat-conducting section (61) and the heat-dissipating fin section (62) are integrally formed.

8. The brake caliper having multiple modes of use of claim 1, wherein: The reset member (3), the brake pad assembly (2), the heat-dissipating element (6) and the caliper body are sequentially arranged from inside to outside, and through holes (14) are formed in the reset member (3), the brake pad assembly (2), the heat-dissipating element (6) and the caliper body, and connecting pins (15) are inserted into the through holes (14), so as to fasten the reset member (3), the brake pad assembly (2), the heat-dissipating element (6) and the caliper body.

9. The brake caliper having multiple modes of use of any of claims 1-8, wherein: The thickness of the base friction plate area (21) is L1, the thickness of the thickened friction plate area (22) is L2, and the thickness of the heat-dissipating element (6) is D1, and L1=L2 is satisfied.

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