Multi-part brake housing

Abstract

The invention relates to a multi-part brake housing for an electromechanical brake, in particular on a motor vehicle, comprising: a brake caliper which is designed with a side for receiving and / or accommodating a brake disc; the invention relates to a multi-part brake housing for a motor vehicle, comprising a brake caliper and a drive housing for accommodating a drive, in particular an electric motor, the multi-part brake housing being shiftable into an assembled state and into a locked state, the brake caliper and the drive housing being mounted in the assembled state so as to be movable, in particular rotational, relative to one another.

Description

Technical Field

[0001] This invention relates to a multi-piece brake housing for use in electromechanical brakes, particularly in motor vehicles. Furthermore, the invention relates to an electromechanical brake comprising a brake housing according to the invention. Background Technology

[0002] Electromechanical disc brakes are well known in the prior art. Here, an electromechanical actuator moves, typically a pair, brake pads onto the brake disc, or more precisely, presses them against the brake disc, thereby applying braking force to the rotating brake disc. This braking force reduces or completely brakes the movement of the brake disc and thus reduces or completely brakes the movement of the tire. The brake pads are arranged on a brake caliper, which is part of the brake housing, in which the electromechanical actuator is also housed.

[0003] Disc brake housings are typically constructed as a single piece. However, this results in a lack of flexibility, or even no flexibility, in assembling the brake caliper or brake housing. This can interfere with or even prevent the arrangement of adjacent components in the relatively narrow mounting space of the wheel arch or wheel cover, where multiple components must be housed. Summary of the Invention

[0004] The multi-piece brake housing according to the invention, having the features of claim 1, and the electromechanical braking device, having the features of claim 10, overcome the disadvantages of the prior art and allow the brake caliper to be flexibly positioned in the tire mounting space, thereby improving compatibility with adjacent components and simplifying assembly.

[0005] Advantageous embodiments of the brake housing according to the invention are the subject of the following description and accompanying drawings.

[0006] Features that have been described and claimed in relation to the apparatus shall also be deemed to have been disclosed accordingly in relation to the method and are therefore subject to protection.

[0007] The multi-piece brake housing is used, in particular, for electromechanical brakes in motor vehicles. The multi-piece brake housing includes: a brake caliper configured to have a side for housing and / or accommodating a brake disc; and a drive housing for accommodating a drive mechanism, particularly an electric motor.

[0008] According to the present invention, the multi-piece brake housing can be converted into an assembled state and a locked state, wherein the brake caliper and actuator housing are supported in the assembled state so that they can move relative to each other, particularly rotate.

[0009] The present invention recognizes that a multi-piece design of the brake housing allows for advantageous and better assembly of the brake housing, wherein the brake housing can adapt to the arrangement of existing components by allowing the brake caliper and actuator housings to move relative to each other. Advantageously, even after the initial assembly has been performed, if disruptive geometry subsequently arises due to the addition of new components, the brake housing can adapt to new spatial conditions.

[0010] In a first advantageous embodiment, the brake caliper and actuator housing are supported in the assembled state so that they can preferably rotate continuously 360° relative to each other. This allows for particularly flexible positioning of the brake housing to accommodate available installation space, wherein the advantageous continuous rotation allows for particularly convenient assembly.

[0011] According to another preferred embodiment, the brake caliper includes a cylindrical, preferably centrally located recess in its side, and the drive housing includes a cylindrical extension, wherein the inner diameter of the recess and the outer diameter of the extension are coordinated to each other such that the recess and the extension can be arranged, in particular, in a clearance fit, to form a connection. This design allows for particularly convenient rotational movement, while also being particularly stable and able to withstand significant rotation without severe material wear. The connection can be advantageously constructed reversibly, thereby allowing for particularly selective, i.e., individual replacement of components. The extension of the drive housing can, in particular, be configured with extensions of varying lengths along the axial direction, which can be adapted to tire mounting space conditions or the overall design of the disc brake.

[0012] According to another preferred embodiment, the brake caliper may have preferably four through openings, particularly drilled holes, in its side portion. These through openings are configured to accommodate connecting elements, particularly threaded connections, wherein the connecting elements are preferably introduced into the through openings from the inner side portion toward the drive housing. This embodiment enables the connection of the brake caliper to other components, which can be achieved particularly conveniently using existing methods.

[0013] According to another preferred embodiment, two clamping elements, particularly opposing plates, are arranged on the outer side of the side portion. Each clamping element has at least two threaded openings with internal threads, wherein connecting elements have complementary external threads and can be screwed together with the threaded openings in a fixed direction to form a threaded connection. This allows for a particularly advantageous arrangement of the brake caliper and clamping elements adjacent to each other, whereby a pre-assembled assembly is advantageously achieved, which can be secured during the assembly of the brake housing. The clamping elements provide a basis for clamping connections with other components. The fixed direction advantageously corresponds to the axial direction of the advantageously cylindrical extension relative to the drive housing, wherein the fixation is preferably achieved by reducing the distance between the brake caliper and the drive housing.

[0014] According to another preferred embodiment, the clamping element may have at least one rounded side surface, which is particularly adapted to the cylindrical shape of the extension. According to another preferred embodiment, the extension may have a groove at its outer periphery, wherein the clamping element is arranged preferably to be recessed into the groove with its rounded side surface, particularly in a manner that is at least partially abutting against it. By arranging the clamping element in the groove, the brake caliper can be axially secured to the drive housing by the clamping element. Here, this arrangement also allows for smooth rotational movement, as the clamping element can rotate along the circumference of the groove, while preventing axial movement, i.e., movement that separates the brake caliper and drive housing from each other, because the clamping element is axially fixed to the wall of the groove. The assembly of the brake caliper, connecting element, clamping element, and drive housing may advantageously be pre-assembled to simplify assembly at the tire, or may be established at least partially until assembly at the tire.

[0015] According to another preferred embodiment, in the assembled state, there exists at least a small gap between the outer side of the side and the clamping element. This gap can be closed, particularly flush, by establishing a threaded connection along a fixed direction. This gap ensures rotational movement in the assembled state, which is thus particularly smooth and requires minimal effort. Preferably, this gap is closed by moving the brake caliper toward the drive housing and / or by moving the clamping element toward the brake caliper.

[0016] According to another preferred embodiment, in the locked state, the clamping element is arranged via a threaded connection, particularly preloaded at the force-applying surface of the groove, thereby forming a force-transmitting clamping connection that clamps the movable support of the brake caliper to the actuator housing in a manner that particularly completely prevents movement, preferably completely prevents rotation. By forming the force-transmitting clamping connection, the multi-piece brake housing is specifically transformed into its locked state. This facilitates the realization of a particularly stable clamping connection that can withstand large forces and reliably ensures its function without limitation after multiple braking processes. The force-transmitting clamping connection also has the advantage of allowing for individual component replacement, which is particularly advantageous because some components, such as the clamping element, experience higher material wear than other components, such as the actuator housing.

[0017] The above objective is also achieved by an electromechanical brake having a brake housing according to any of the above embodiments of the present invention.

[0018] To avoid unnecessary repetition, please refer to the implementation of the multi-piece brake housing for the advantages of the electromechanical brake.

[0019] The invention will be explained in more detail below with reference to the merely illustrative illustrations that show exemplary embodiments of the invention. Attached Figure Description

[0020] Figure 1 A schematic diagram of a portion of the threaded connection on a multi-piece brake housing is shown.

[0021] Figure 2a and Figure 2b A perspective view of a multi-piece brake housing is shown. Detailed Implementation

[0022] Figure 1 A schematic diagram of the threaded connection area of ​​a multi-piece brake housing is shown. Here, a connecting element 9 is received in the through opening 8 of the brake caliper 2 and screwed together with a clamping element 12. Advantageously, the connecting element 9 has an external thread configured to complement the internal thread on the threaded opening 13 of the clamping element 12. Particularly preferably, the multi-piece brake housing includes four through openings 8 and two clamping elements 12, each having an associated connecting element 9. The connecting element 9 is screwed in particular from one side of the brake caliper 2 toward the clamping element 12 and / or the actuator housing 5. Figure 1 In the assembled state of the multi-piece brake housing, a gap is advantageously constructed at position 15 between the clamping element 12 shown and the outer surface 11 of the second side 4, which is closed in the locking state shown here.

[0023] The clamping element 12 is preferably arranged with its rounded side facing into a groove 14, which is constructed at the outer periphery of the extension 7 of the actuator housing 5. The rounded side facing of the clamping element 12 is preferably configured such that the clamping element 12 at least partially abuts the bottom of the groove 14 along its circumference. With this arrangement, when the connecting parts are screwed together, the clamping element 12 is clamped to the force-applying surface 16 in the groove 14 of the actuator housing 5, thereby generating a clamping force, particularly at the force-transmitting clamping connection, which prevents rotational movement of the brake caliper 2 relative to the actuator housing 5 in the locked state.

[0024] Figure 2a and Figure 2b A multi-piece brake housing is shown in three dimensions. This multi-piece brake housing includes a brake caliper 2 having two sides 3 and 4 configured to accommodate a brake disc. Four through openings 8 are provided on side 4 to accommodate connecting elements 9, particularly threaded connections, which advantageously extend from the inner side 10 of side 4 to the outer side 11. The connecting elements 9 are connected to, and preferably screwed together with, a clamping element 12 on the outer side 11. For this purpose, the connecting element 9 preferably has an external thread configured to complement the internal thread on the threaded opening 13 of the clamping element 12. Here, in the assembled state, a gap exists between the clamping element 12 and the outer side 11 at position 15, which is closed by screwing the connecting element 9 together with the clamping element 12.

[0025] The brake caliper 2 also includes a preferably circular recess 6, and the actuator housing 5 includes a preferably cylindrical extension 7, which are configured to complement each other, such that the extension 7 can be arranged in the recess 6 in a clearance fit. Thus, in the assembled state of the multi-piece brake housing, preferably continuous rotational movement of the brake caliper 2 and the actuator housing 5 relative to each other can be achieved. Furthermore, a groove 14 is constructed uninterruptedly on the extension 7, particularly in the circumferential direction, wherein the clamping element 12 advantageously has rounded side surfaces that adapt to the circumferential configuration of the groove 14. The clamping element 12 is arranged to sink into the groove 14 with its advantageous rounded side surfaces, particularly at least partially abutting the bottom of the groove 14 circumferentially, thereby preventing axial movement of the brake caliper 2 and the actuator housing 5, especially movement that would separate the brake caliper 2 and the actuator housing 5 from each other. By establishing a threaded connection 17, preferably two clamping elements 12 are clamped onto the force-applying surface 16 of the groove 14 of the drive housing 5, thereby blocking the rotational movement of the brake caliper 2 relative to the drive housing 5 through the force-transmitting clamping connection in the resulting locked state of the multi-piece brake housing.

Claims

1. A multi-piece brake housing, the multi-piece brake housing being used, particularly in electromechanical brakes for motor vehicles, the multi-piece brake housing comprising: Brake caliper (2), the brake caliper being configured to have sides (3, 4) for accommodating and / or housing a brake disc, and A drive housing (5) for accommodating a drive unit, particularly an electric motor. Its features are, The multi-piece brake housing can be converted into an assembled state and a locked state, wherein the brake caliper (2) and the actuator housing (5) are supported in the assembled state so that they can move relative to each other, particularly rotate.

2. The multi-piece brake housing according to claim 1, Its features are, The brake caliper (2) and the drive housing (5) are supported in the assembled state so that they can preferably rotate continuously 360° relative to each other.

3. The multi-piece brake housing according to claim 1 or 2, Its features are, The brake caliper (2) includes a cylindrical, preferably centrally located recess (6) in the side portion (4), and the drive housing (5) includes a cylindrical extension (7), wherein the inner diameter of the recess (6) and the outer diameter of the extension (7) are coordinated with each other so that the recess and the extension can be arranged to form a connection, especially in a clearance fit manner.

4. The multi-piece brake housing according to any one of claims 1 to 3, Its features are, The brake caliper (2) has preferably four through openings (8), particularly drilled holes, in the side (4), the through openings being configured to accommodate connecting elements (9), particularly threaded connections, wherein the connecting elements (9) are preferably able to be introduced into the through openings (8) from the inner side (10) of the side toward the drive housing (5).

5. The multi-piece brake housing according to claim 4, Its features are, Two clamping elements (12), particularly opposing plates, are arranged on the outer side (11) of the side portion. The clamping elements have at least two threaded openings (13) with internal threads, wherein the connecting element (9) has external threads with complementary construction and can be screwed together with the threaded openings (13) in a fixed direction to form a threaded connection (17).

6. The multi-piece brake housing according to claim 5, Its features are, The clamping element (12) has at least one rounded side surface, which is specifically adapted to the cylindrical shape of the extension (7).

7. The multi-piece brake housing according to any one of claims 5 or 6, Its features are, The extension (7) has a groove (14) on its outer periphery, wherein the clamping element (12) is arranged preferably to be recessed into the groove (14) with its rounded side surface, especially in a manner that is at least partially abutting against it.

8. The multi-piece brake housing according to any one of claims 5 to 7, Its features are, In the assembled state, there is at least a small gap between the outer surface of the side (11) and the clamping element (12), and the gap can be closed completely flush by establishing the threaded connection (17) in a fixed direction.

9. The multi-piece brake housing according to claim 7 or 8, Its features are, In the locked state, the clamping element (12) is arranged through the threaded connection (17), and in particular preloaded at the force-applying surface (16) of the groove (14), thereby forming a clamping connection for force transmission. The clamping connection clamps the movable support of the brake caliper (2) and the drive housing (5) together in a manner that completely prevents movement and preferably completely prevents rotation.

10. In particular, an electromechanical brake for motor vehicles, the electromechanical brake comprising a multi-piece brake housing according to any one of claims 1 to 9.

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