Pressure sensor structure applied to electronic mechanical brake

Abstract

The utility model relates to the technical field of brake systems, in particular to a pressure sensor structure applied to an electronic mechanical brake. A pressure sensor structure applied to an electronic mechanical brake comprises an upper cover, a pressure ring and an elastic body, and is characterized in that the upper part of the elastic body is sleeved with the upper cover, and the outer side of the lower part of the upper cover is sleeved with the pressure ring; the inner ring of the pressure ring is of an annular structure, and the outer edge of the pressure ring is of one or more combinations of an inclined angle structure, a step structure, a right-angle structure and a plane structure. Compared with the prior art, the pressure sensor structure applied to the electronic mechanical brake is provided, in order to better adapt to pistons and calipers with different cylinder diameters, a force sensor serving as a middle connection adopts a structure of an elastic body and an external pressure ring, so that the pressure sensor structure can better adapt to assemblies with various cylinder diameters, the specification of the elastic body is reduced, and the product consistency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of braking systems, and specifically relates to a pressure sensor structure applied to an electro-mechanical brake. Background Art

[0002] Since the EMB electronic actuator brake requires an extremely fast response speed and high transmission efficiency, due to the characteristic of fast response, the control and response feedback are particularly important, and the pressure sensor has become an indispensable part of this system.

[0003] Therefore, based on this, a pressure closed-loop structure is designed to adapt to pistons and calipers with various cylinder diameters. Summary of the Invention

[0004] In order to overcome the deficiencies of the prior art, the utility model provides a pressure sensor structure applied to an electro-mechanical brake. In order to better adapt to pistons and calipers with different cylinder diameters, the force sensor as an intermediate connection adopts a structure of an elastomer plus an external pressure ring, which can better adapt to assemblies with various cylinder diameters, reduce the specifications of the elastomer, and improve product consistency.

[0005] To achieve the above object, a pressure sensor structure applied to an electro-mechanical brake is designed, including an upper cover, a pressure ring, and an elastomer. It is characterized in that: an upper cover is sleeved on the upper part of the elastomer, and a pressure ring is sleeved on the outer side of the lower part of the upper cover; the inner ring of the pressure ring is a circular ring structure, and the outer edge of the pressure ring is one or a combination of an inclined angle structure, a stepped structure, a right angle structure, and a flat structure.

[0006] The inner ring of the pressure ring is connected and matched with the lower part of the upper cover, the bottom of the pressure ring is connected and matched with the elastomer, and the outer side of the pressure ring is connected and matched with the caliper.

[0007] A rotation prevention structure is provided on one side of the top of the upper cover.

[0008] A circuit is provided inside the upper cover.

[0009] The elastomer is a sensitive element bonding part, and the elastomer is an elastic extrusion deformation structure.

[0010] Compared with the prior art, the utility model provides a pressure sensor structure applied to an electro-mechanical brake. In order to better adapt to pistons and calipers with different cylinder diameters, the force sensor as an intermediate connection adopts a structure of an elastomer plus an external pressure ring, which can better adapt to assemblies with various cylinder diameters, reduce the specifications of the elastomer, and improve product consistency.

[0011] The pressure ring is simple to process and has a high degree of flexibility in structural design. It can be modified to the greatest extent according to environmental requirements during the design matching stage. A flexible structure for step installation can be added, or a chamfer can be added to adjust the mating surface area, giving full play to flexibility. Brief Description of the Drawings

[0012] Figure 1 This is a schematic structural diagram of the present invention.

[0013] Figure 2 It is Figure 1 a cross-sectional view of

[0014] Figure 3 It is an assembly schematic diagram of pressure rings with different structures.

[0015] Figures 4 to 6 It is a schematic structural diagram of pressure rings with different styles.

[0016] Refer to Figures 1 to 3 , where 1 is the upper cover, 2 is the pressure ring, and 3 is the elastomer. Detailed Description of the Preferred Embodiments

[0017] The following further describes the present invention with reference to the drawings.

[0018] As Figures 1 to 6 shown, an upper cover 1 is sleeved on the upper part of the elastomer 3, and a pressure ring 2 is sleeved on the outer side of the lower part of the upper cover 1; the inner ring of the pressure ring 2 is a circular ring structure, and the outer edge of the pressure ring 2 is one or a combination of an inclined angle structure, a step structure, a right angle structure, and a flat structure.

[0019] The inner ring of the pressure ring 2 is connected and matched with the lower part of the upper cover 1, the bottom of the pressure ring 2 is connected and matched with the elastomer 3, and the outer side of the pressure ring 2 is connected and matched with the caliper.

[0020] A rotation prevention structure is provided on one side of the top of the upper cover 1.

[0021] A circuit is provided inside the upper cover 1.

[0022] The elastomer 3 is a sensitive element bonding part, and the elastomer 3 is an elastic extrusion deformation structure.

[0023] Based on calipers and ball screw systems with different cylinder diameters from D51 - D36, an arc ring surface is added to the connection structure between the pressure ring 2 and the elastomer 3, which can, to a certain extent, eliminate the problem of large load off-axis. The structure of the pressure ring 2 in cooperation with the caliper can be adjusted arbitrarily to a certain extent according to different caliper cylinder diameters in terms of diameter and mating surface area.

[0024] As Figures 4 to 6As shown, through the structural design of multiple pressure rings, the pressure sensor can be installed to match the flexible structure wave spring, O-ring or directly rigidly connected to the caliper cylinder block.

[0025] The force sensor structure of the present utility model connects the piston ball screw assembly and the electronic brake caliper body. In order to better adapt to pistons with different cylinder diameters and calipers, the force sensor as an intermediate connection adopts a structure of an elastomer plus an external pressure ring, which can better adapt to assemblies with various cylinder diameters, reduce the specifications of the elastomer, and improve product consistency.

[0026] The pressure ring is simple to process and has a high structural design flexibility. It can be modified to the greatest extent according to environmental requirements during the design and matching stage. It can add a stepped installation flexible structure or increase the chamfer to adjust the mating surface area, giving full play to flexibility and freedom.

Claims

1. A pressure sensor structure applied to an electro-mechanical brake, comprising an upper cover, a pressure ring, and an elastomer, characterized in that: An upper cover (1) is sleeved on the upper part of the elastomer (3), and a pressure ring (2) is sleeved on the outer side of the lower part of the upper cover (1); the inner ring of the pressure ring (2) is of an annular structure, and the outer edge of the pressure ring (2) is one or a combination of an inclined angle structure, a stepped structure, a right angle structure, and a flat structure.

2. The pressure sensor structure applied to an electromechanical brake according to claim 1, characterized in that: The inner ring of the pressure ring (2) is connected to the lower part of the upper cover (1) in a matching manner, the bottom of the pressure ring (2) is connected to the elastomer (3) in a matching manner, and the outer side of the pressure ring (2) is connected to the caliper in a matching manner.

3. The pressure sensor structure applied to an electromechanical brake according to claim 1, characterized in that: One side of the top of the upper cover (1) is provided with an anti-rotation structure.

4. The pressure sensor structure applied to an electromechanical brake according to claim 1, wherein: A circuit is arranged in the upper cover (1).

5. The pressure sensor structure applied to an electromechanical brake according to claim 1, wherein: The elastomer (3) is a sensitive element pasted part, and the elastomer (3) is an elastic extrusion deformation structure.

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