An integrated pedal simulator component

Abstract

This utility model relates to an integrated pedal simulator assembly, including a housing and a piston. A disc spring assembly is located at the bottom of the inner cavity of the housing, and an opening is provided at the top of the housing, with a retaining ring at the opening. The lower part of the piston extends into the housing and is limited by the retaining ring; the bottom of the piston abuts against the disc spring assembly. A sealing structure is provided between the piston and the housing. This utility model provides an integrated pedal simulator assembly that, by combining the piston, disc spring assembly, and sealing structure, effectively reduces product complexity, minimizes assembly process problems, and improves product assembly qualification rate. Simultaneously, the reduction in parts also lowers component costs and reduces process and manufacturing costs.

Description

Technical Field

[0001] This utility model relates to the field of automotive parts technology, specifically to an integrated pedal simulator component. Background Technology

[0002] With the rise and popularization of new energy electric vehicles, the development of automotive electronics and electrical systems is changing rapidly. Traditional braking systems are also facing the trend of integration with electronic and electrical systems. Under this background, automotive braking system integrated braking system control modules have emerged, and the market share of One box braking system modules has been increasing year by year. Currently, One box pedal simulator components usually use different combinations of disc spring groups, coil springs, or rubber to achieve different types of pedal feel feedback based on the characteristics of elastic elements.

[0003] Currently, in this industry, simulator components typically exist as standalone units, requiring a combination of sealing structures and pistons to achieve the sealing and pedal feel of the pedal simulator. This approach has the following drawbacks: The simulator piston, piston cup, and simulator assembly are designed as identical parts. Therefore, all parts must be assembled on the One-box production line. The assembly process is typically as follows: first, lubricate the manifold grooves; then, fit the lubricated piston cup into the simulator piston, and finally, install both into the manifold. Since most simulator assemblies on the market that use disc springs employ wet simulators (the simulator is immersed in brake fluid), a lubricated sealing ring is first installed into the manifold before assembling the simulator assembly. After completing the above steps, install the simulator assembly, which is connected by riveting or threads.

[0004] The above assembly process involves various assembly methods such as press fitting, combination, riveting, threading, and lubrication. The parts are complexly assembled, and the assembly process requires the use of: lubricating oil spraying, assembling the piston cup (manually or with equipment), piston press fitting, simulator press fitting, or riveting. Problems that may occur in this process include: cutting the piston cup, cutting the sealing ring, and failure to press the piston in place. Utility Model Content

[0005] This invention provides an integrated pedal simulator component to solve at least one of the aforementioned technical problems in the prior art.

[0006] To achieve the above objectives, the technical solution adopted by this utility model is as follows: An integrated pedal simulator assembly includes a housing and a piston; the housing has an inner cavity, the upper part of which extends through the housing to form an opening, and a retaining ring is provided at the opening; a disc spring assembly is provided at the bottom of the inner cavity of the housing; the lower part of the piston extends into the housing and is limited by the retaining ring; the bottom of the piston is in contact with the disc spring assembly; a sealing structure is provided between the piston and the housing.

[0007] Compared with the prior art, the present invention has at least the following beneficial effects: This utility model provides an integrated pedal simulator assembly that combines a piston, disc spring assembly, and sealing structure, effectively reducing product complexity, mitigating various assembly problems, and improving product assembly qualification rate. Simultaneously, the reduction in parts also lowers component costs and reduces process and manufacturing costs.

[0008] Based on the above technical solution, the present invention can be further improved as follows.

[0009] In one possible implementation, a boss is provided at the bottom of the inner cavity of the housing, a guide post is provided at the bottom of the piston, and the two ends of the disc spring assembly are respectively sleeved on the boss and the guide post, with a travel space provided between the boss and the guide post.

[0010] The beneficial effects of the above solution are: by setting the boss and guide post, the smooth compression of the disc spring assembly can be achieved better, the damage to the disc spring assembly can be reduced, and its service life can be extended.

[0011] In one possible implementation, the boss is a cylindrical boss, and the guide post is a cylindrical guide post.

[0012] The advantages of the above scheme are: the use of cylindrical bosses and cylindrical guide posts facilitates the assembly of disc spring assemblies and pistons.

[0013] In one possible implementation, a limiting piece is also provided between the boss and the guide post.

[0014] The beneficial effect of the above solution is that by setting a limiting plate, it is possible to further ensure that the piston moves along the axis of the housing without deviating.

[0015] In one possible implementation, the disc spring assembly includes multiple sets of disc springs with different stiffnesses.

[0016] The advantages of the above solution are: by combining multiple sets of disc springs with different stiffnesses, it is possible to match various stiffness curves of different vehicles and models, which is highly flexible and has low manufacturing cost.

[0017] In one possible implementation, a groove is provided at the opening, and a retaining ring is installed in the groove, wherein the inner diameter of the retaining ring is smaller than the lower outer diameter of the piston.

[0018] The beneficial effect of the above solution is that by setting a groove at the opening, after the lower part of the piston extends into the housing, the retaining ring is installed into the groove, thereby limiting the piston and improving the convenience of assembly.

[0019] In one possible implementation, the retaining ring is an elastic retaining ring.

[0020] The beneficial effects of the above solution are: by using an elastic retaining ring, the piston can be cushioned, reducing damage to the piston and extending its service life.

[0021] In one possible implementation, the sealing structure is a sealing ring, which is fitted onto the outer wall of the piston and forms a compression seal with the inner wall of the housing.

[0022] The advantages of the above solution are: using a sealing ring as the sealing structure between the piston and the housing has the advantages of simple structure, low cost and convenient installation.

[0023] In one possible implementation, a sealing groove is provided on the lower outer wall of the piston, and the sealing ring is fitted inside the sealing groove.

[0024] The beneficial effect of the above solution is that by opening a sealing groove on the lower outer wall of the piston and fitting the sealing ring inside the sealing groove, the sealing ring can be prevented from slipping off, thus ensuring the sealing effect.

[0025] In one possible implementation, the housing has a stepped structure, and the outer wall thickness of the housing on the side of the opening is greater than the outer wall thickness on the side away from the opening.

[0026] The beneficial effect of the above solution is that by setting different outer wall thicknesses in different parts of the shell, it is possible to save costs while ensuring that the shell has sufficient strength. Attached Figure Description

[0027] Figure 1 A schematic diagram of the structure of an integrated pedal simulator assembly provided in an embodiment of this utility model; Figure 2 This is a schematic diagram of the shell structure in an embodiment of the present utility model; Figure 3 This is a schematic diagram of the piston structure in an embodiment of this utility model.

[0028] The attached diagram lists the components represented by each number as follows: 1. Housing; 11. Opening; 12. Boss; 13. Slot; 2. Piston; 21. Guide post; 22. Sealing groove; 3. Disc spring assembly; 31. First disc spring group; 32. Second disc spring group; 33. Third disc spring group; 34. Fourth disc spring group; 4. Snap ring; 5. Sealing structure; 6. Limiting plate. Detailed Implementation

[0029] The principles and features of this utility model are described below. The examples given are only for explaining this utility model and are not intended to limit the scope of this utility model.

[0030] Example like Figure 1 and Figure 2 As shown, this utility model embodiment provides an integrated pedal simulator assembly, which may include, but is not limited to, a housing 1 and a piston 2; the housing 1 has an inner cavity, the upper part of which penetrates the housing 1 to form an opening 11, and a retaining ring 4 is provided at the opening 11; a disc spring assembly 3 is provided at the bottom of the inner cavity of the housing 1; the lower part of the piston 2 extends into the housing 1 and is limited by the retaining ring 4; the bottom of the piston 2 is in contact with the disc spring assembly 3; a sealing structure 5 is provided between the piston 2 and the housing 1.

[0031] This utility model provides an integrated pedal simulator assembly that effectively reduces the complexity of the product by combining the piston 2, disc spring assembly 3, and sealing structure 5. During assembly, it is only necessary to first install the disc spring assembly 3 into the bottom of the inner cavity of the housing 1, then put the piston 2 on the sealing structure 5 and insert it into the inner cavity of the housing 1, and finally install the retaining ring 4 to complete the assembly. This reduces the complexity of the assembly process and improves the product assembly qualification rate. At the same time, the reduction of parts also reduces the cost of components and reduces the process and processing costs.

[0032] like Figures 1-3 As shown, in one feasible implementation, the present invention may, but is not limited to, have a boss 12 at the bottom of the inner cavity of the housing 1, a guide post 21 at the bottom of the piston 2, and the two ends of the disc spring assembly 3 respectively sleeved on the boss 12 and the guide post 21, with a travel space provided between the boss 12 and the guide post 21.

[0033] By providing the boss 12 and guide post 21, this embodiment of the utility model can better achieve smooth compression of the disc spring assembly 3, reduce damage to the disc spring assembly 3, and extend its service life.

[0034] like Figures 1-3 As shown, in a feasible implementation, the boss 12 in this embodiment of the present invention can be a cylindrical boss, and the guide post 21 can be a cylindrical guide post.

[0035] This embodiment of the invention uses a cylindrical boss and a cylindrical guide post to facilitate the assembly of the disc spring assembly 3 and the piston 2.

[0036] It should be noted that, in addition to using cylindrical bosses and cylindrical guide posts, other structures of bosses 12 and guide posts 21, such as square column structures and frustum structures, can also be used in the embodiments of this utility model, and no limitation is made here.

[0037] like Figure 1 As shown, in one feasible implementation, the present invention may, but is not limited to, provide a limiting piece 6 between the boss 12 and the guide post 21.

[0038] By setting a limiting piece 6, this embodiment of the utility model can further ensure that the piston 2 moves along the axis of the housing 1 without deviating, thus ensuring the stability of piston operation and extending the service life of the piston 2 and the housing 1.

[0039] It should be noted that the limiting piece 6 in this embodiment of the present invention is an annular plate structure, which is disposed in the disc spring assembly 4. Its outer diameter matches the inner diameter of the housing 1, and its inner diameter matches the guide post 21 of the piston 2. When the disc spring assembly 4 is compressed, the limiting piece 6 can move together with the disc spring assembly 4.

[0040] like Figure 1 As shown, in one feasible implementation, the disc spring assembly 3 in this utility model embodiment includes multiple disc spring groups with different stiffnesses, such as a first disc spring group 31, a second disc spring group 32, a third disc spring group 33 and a fourth disc spring group 34, with the stiffness of the first disc spring group 31, the second disc spring group 32, the third disc spring group 32 and the fourth disc spring group 32 gradually increasing.

[0041] This utility model embodiment combines multiple sets of disc springs with different stiffnesses, which can match various stiffness curves of different vehicles and models, offering high flexibility and low manufacturing cost.

[0042] In the specific implementation process, it should be noted that the limiting piece 6 in the embodiment of this utility model is preferably disposed between the third disc spring group 33 and the fourth disc spring group 34. Of course, it can also be disposed between the second disc spring group 32 and the third disc spring group 33, which is not limited here.

[0043] like Figure 1 and Figure 2 As shown, in one feasible implementation, the present invention may, but is not limited to, provide a slot 13 at the opening 11, and a retaining ring 4 is installed in the slot 13, wherein the inner diameter of the retaining ring 4 is smaller than the lower outer diameter of the piston 2.

[0044] This embodiment of the utility model provides a slot 13 at the opening 11. After the lower part of the piston 2 extends into the housing 1, the retaining ring 4 is installed in the slot 13 to limit the piston 2 and improve the convenience of assembly.

[0045] In one feasible implementation, the retaining ring 4 in this utility model embodiment may be, but is not limited to, an elastic retaining ring.

[0046] This embodiment of the invention uses an elastic retaining ring, which can buffer the piston 2, reduce damage to the piston 2, and extend the service life of the piston 2.

[0047] like Figure 1 As shown, in one feasible implementation, the sealing structure 5 in this embodiment of the present invention can be, but is not limited to, a sealing ring, which is sleeved on the outer wall of the piston 2 and forms a compression seal with the inner wall of the housing 1.

[0048] This embodiment of the utility model uses a sealing ring as the sealing structure between the piston 2 and the housing 1, which has the advantages of simple structure, low cost and convenient installation.

[0049] like Figure 1 and Figure 3 As shown, in one feasible implementation, the present invention may, but is not limited to, have a sealing groove 22 provided on the lower outer wall of the piston 2, and a sealing ring fitted inside the sealing groove 22.

[0050] This embodiment of the invention provides a sealing groove 22 on the lower outer wall of the piston 2, and a sealing ring is fitted inside the sealing groove 22, which can prevent the sealing ring from slipping off and ensure the sealing effect.

[0051] It should be noted that, in this embodiment of the present invention, a sealing groove may also be formed on the inner side wall of the housing 1, and the sealing ring may be fitted into the sealing groove on the inner side wall of the housing 1. This is not a limitation.

[0052] Furthermore, the sealing ring in the embodiments of this utility model can be a sealing ring with a circular cross-section, or a sealing ring with other structures, such as a sealing ring with a semi-circular cross-section or a sealing ring with a triangular cross-section, and is not limited here.

[0053] like Figure 1 As shown, in one feasible implementation, the shell 1 in this utility model embodiment may, but is not limited to, have a stepped structure, and the outer wall thickness of the shell 1 on the side of the opening 11 is greater than the outer wall thickness on the side away from the opening 11.

[0054] This utility model embodiment saves costs while ensuring that the shell 1 has sufficient strength by setting different outer wall thicknesses at different parts of the shell 1.

[0055] The working principle of the integrated pedal simulator component provided in this embodiment of the utility model is as follows: In its natural state, the lower part of piston 2 is limited by retaining ring 4, preventing piston 2 from coming out of housing 1; When piston 2 is compressed by brake fluid, piston 2 moves downward, and disc spring assembly 3, consisting of first disc spring group 31, second disc spring group 32, third disc spring group 32 and fourth disc spring group 32, is compressed until the guide post 21 at the bottom of piston 2 contacts the boss 12 at the bottom of the inner cavity of housing 1, and the entire disc spring assembly 3 reaches the maximum compression stroke.

[0056] In the description of this utility model, it should be understood that 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", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0057] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this utility model, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0058] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0059] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0060] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of the present invention.

Claims

1. An integrated pedal simulator component, characterized in that, It includes a housing (1) and a piston (2); the housing (1) has an inner cavity, the upper part of the inner cavity penetrates the housing (1) to form an opening (11), and a retaining ring (4) is provided at the opening (11), and a disc spring assembly (3) is provided at the bottom of the inner cavity of the housing (1); the lower part of the piston (2) extends into the housing (1) and is limited by the retaining ring (4), and the bottom of the piston (2) is in contact with the disc spring assembly (3); a sealing structure (5) is provided between the piston (2) and the housing (1).

2. The integrated pedal simulator assembly according to claim 1, characterized in that, The bottom of the inner cavity of the housing (1) is provided with a boss (12), the bottom of the piston (2) is provided with a guide post (21), the two ends of the disc spring assembly (3) are respectively sleeved on the boss (12) and the guide post (21), and a stroke space is provided between the boss (12) and the guide post (21).

3. The integrated pedal simulator assembly according to claim 2, characterized in that, The boss (12) is a cylindrical boss, and the guide post (21) is a cylindrical guide post.

4. The integrated pedal simulator assembly according to claim 2, characterized in that, A limiting piece (6) is also provided between the boss (12) and the guide post (21).

5. The integrated pedal simulator assembly according to claim 1, characterized in that, The disc spring assembly (3) includes multiple sets of disc springs with different stiffnesses.

6. The integrated pedal simulator assembly according to claim 1, characterized in that, A slot (13) is provided at the opening (11), and the retaining ring (4) is installed in the slot (13). The inner diameter of the retaining ring (4) is smaller than the lower outer diameter of the piston (2).

7. The integrated pedal simulator assembly according to claim 6, characterized in that, The retaining ring (4) is an elastic retaining ring.

8. The integrated pedal simulator assembly according to claim 1, characterized in that, The sealing structure (5) is a sealing ring, which is sleeved on the outer wall of the piston (2) and forms a compression seal with the inner wall of the housing (1).

9. The integrated pedal simulator assembly according to claim 8, characterized in that, A sealing groove (22) is provided on the lower outer wall of the piston (2), and the sealing ring is fitted inside the sealing groove (22).

10. The integrated pedal simulator assembly according to claim 1, characterized in that, The shell (1) has a stepped structure, and the outer wall thickness of the shell (1) on the side of the opening (11) is greater than the outer wall thickness on the side away from the opening (11).

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