Electric signal rotation transmission device

Abstract

The utility model relates to an electric signal rotation transmission device, and belongs to the field of tire automatic inflation systems. Comprising a baseplate; the number of the outer shells is two, and the two outer shells are arranged on the two sides of the bottom plate correspondingly. The number of the brush wire assemblies is two, the two brush wire assemblies are connected with the two shells correspondingly, each brush wire assembly comprises two brush wires, and the two brush wires are symmetrically connected to the shells and are in sliding fit with the shells; the brush wire outgoing line is arranged in a Y shape, the two ends of the same side of the brush wire outgoing line are connected to the same brush wire, and the third end of the brush wire outgoing line sequentially penetrates out of the shell and the bottom plate; one end of the brush wire shaft is in threaded connection with the brush wires, and the other end of the brush wire shaft sequentially penetrates through the shell to be connected to the bottom plate; the reset part is connected to the brush wire shaft, and the reset part is used for correcting the deviation of the brush wires. The brush wire shaft is used for limiting, the reset piece is reset, and the problem that the brush wires deviate from the contact can be solved.

Description

Technical Field

[0001] This application relates to the field of automatic tire inflation systems, and in particular to an electrical signal rotation transmission device. Background Technology

[0002] Currently, the known structure of the electrical signal rotation transmission device in a tire inflation system consists of a wiring harness, a PCB board, cylindrical bent metal wires, and auxiliary components. The metal wires are in dynamic contact with the load, and the electrical signal is transmitted to the dynamically contacting load through the metal wires. When the tire rotates, the metal wires are in dynamic contact with a metal conductive slip ring fixed on the tire axle, thus maintaining the circuit continuity during tire rotation. Current flows from the main control box through the brush assembly to the metal conductive slip ring, and then to the wheel rim system assembly, thereby controlling the inflation and deflation actions of the wheel rim system.

[0003] Because the metal wire has relatively low hardness and low contact pressure, the brush bristles may deviate from the contact points during assembly and operation, potentially causing an open circuit. Therefore, the electrical signal rotary transmission device in a tire inflation system has a short service life and a high risk of failure. Summary of the Invention

[0004] This application provides an electrical signal rotation transmission device, which can solve the problem in related technologies where brush filaments deviate from the contact points, leading to an open circuit and affecting the short service life of the electrical signal rotation transmission device in the tire inflation system.

[0005] This application provides an electrical signal rotation transmission device, comprising: a base plate; two sets of housings respectively arranged on both sides of the base plate; two sets of brush assemblies respectively connected to the two housings, each set of brush assemblies including two brushes symmetrically connected to the housings and slidingly engaging with the housings; a brush wire lead-out wire arranged in a Y shape, with the two ends on the same side of the lead-out wire respectively connected to the same brushe, and the third end passing through the housing and the base plate in sequence; a brush wire shaft, one end of which is threadedly connected to the brushes, and the other end passing through the housing and connected to the base plate in sequence; and a reset member connected to the brush wire shaft, the reset member being used to correct the brush wire deviation.

[0006] In some embodiments, the bristle cross-section is arranged in a block shape.

[0007] In some embodiments, the reset element includes a spring, which is fitted onto the brush bristle shaft, and the two ends of the spring are respectively connected to the brush bristle shaft and the base plate.

[0008] In some embodiments, the base plate is provided with a limiting stop, the brush shaft is provided with a limiting ring, one end of the spring abuts against the limiting stop, and the other end abuts against the limiting ring.

[0009] In some embodiments, the inner wall of the limiting stop is further provided with a gasket, and the other end of the spring abuts against the gasket.

[0010] In some embodiments, the brush bristles are provided with clamping holes adapted to the brush bristle outlets, and the brush bristles are provided with threaded holes for connection to the brush bristle shaft. The clamping holes communicate with the threaded holes, the limiting ring abuts against the top of the threaded holes, and the two ends of the brush bristle outlets on the same side are connected to the clamping holes and in contact with the limiting ring.

[0011] In some embodiments, the brush bristles are provided with a countersunk groove at the top of the threaded hole, the limiting ring is pressed against the countersunk groove, and the countersunk groove is in communication with the pressing hole.

[0012] In some embodiments, the bottom of the base plate is provided with a boss, and the two sets of the outer shells are respectively located on both sides of the boss and fixed to the base plate.

[0013] In some embodiments, the housing is provided with bolt holes, and bolts are connected to the base plate by engaging with the bolt holes.

[0014] In some embodiments, the outer casing is provided with a waist-shaped hole, and the bottom plate is provided with a circular hole concentric with the waist-shaped hole, and the third end of the brush bristle leads through the waist-shaped hole and the circular hole in sequence.

[0015] The beneficial effects of the technical solutions provided in this application include:

[0016] This application provides an electrical signal rotation transmission device. Through the cooperation of a brush shaft and a reset component, one end of the brush shaft is connected to the brush bristles, and the other end is connected to a base plate, thereby limiting the position of the brush bristles and preventing them from deviating. Furthermore, when the tire rotates, the brush bristles are reset by the reset component. If the brush bristles are bounced up by road bumps, the reset component can also reset the brush bristles, thus effectively and reliably solving the problem of brush bristle deviation from the contact point. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a schematic diagram of the overall structure provided for an embodiment of this application;

[0019] Figure 2 An exploded view diagram provided for an embodiment of this application;

[0020] In the diagram: 1. Base plate; 10. Limiting stop; 11. Boss; 12. Round hole; 2. Outer shell; 20. Waist-shaped hole; 3. Brush bristles; 30. Pressing hole; 31. Threaded hole; 32. Countersunk groove; 4. Brush bristle lead-out; 5. Brush bristle shaft; 6. Reset piece; 7. Limiting ring; 8. Washer; 9. Bolt; 90. Bolt hole. Detailed Implementation

[0021] To enable those skilled in the art to better understand the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present application, and not all embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present application.

[0022] This application provides an electrical signal rotation transmission device that can solve the problem in related technologies where brush filaments deviate from the contact point, leading to an open circuit and affecting the short service life of the electrical signal rotation transmission device in the tire inflation system.

[0023] See Figures 1 to 2 As shown in the figure, this application provides an electrical signal rotation transmission device, including: a base plate 1, a housing 2, a brush bristle assembly 3, a brush bristle lead wire 4, a brush bristle shaft 5, and a reset component 6. The base plate 1 serves as the basic support component of the entire electrical signal rotation transmission device, providing installation positions and a fixing platform for other components. A boss 11 is provided at the bottom of the base plate 1, which divides the two sides of the base plate 1 into installation areas, facilitating the rational layout of other components and ensuring a compact and orderly internal structure. It also provides a stable foundation for the installation of the housing 2 and the brush bristle assembly 3. Specifically, bolts 9 are connected to the housing 2 through bolt holes 90, which mate with the base plate 1. The use of bolts 9 for connection is simple and reliable.

[0024] Therefore, this application provides two sets of outer casings 2, which are respectively arranged on both sides of the base plate 1 and fixed to the base plate 1 on both sides of the boss 11. The outer casings 2 serve to protect the internal components and cooperate with the base plate 1 to install the brush bristle 3 assembly. Two sets of brush bristle 3 assemblies are also provided on the same base plate 1, and each set is connected to one of the two outer casings 2. The brush bristle 3 assembly is a key component for electrical signal transmission, and the material used is beryllium copper, which improves the wear resistance, conductivity, and service life of the brush bristles 3. The brush bristles 3 are responsible for maintaining contact with dynamically contacting loads, such as the metal conductive slip ring on the tire axle, to achieve electrical signal transmission. Each set of brush bristle 3 assemblies includes two brush bristles 3, which are symmetrically connected to the outer casing 2 and slide in cooperation with it. The brush bristle leads 4 are arranged in a Y-shape, with the two ends on the same side of the lead 4 connected to the same brush bristle 3, and the third end passing through the outer casing 2 and the base plate 1 in sequence. The outer casing 2 has a waist-shaped hole 20, and the base plate 1 has a circular hole 12 concentric with the waist-shaped hole 20. The third end of the brush filament lead-out wire 4 passes through the waist-shaped hole 20 and the circular hole 12 in sequence. This Y-shaped wiring method can effectively concentrate the electrical signal on the brush filament 3, ensuring the continuity and stability of the electrical signal transmission and avoiding signal interruption or interference caused by wiring problems.

[0025] Furthermore, by threading one end of the brush shaft 5 to the brush bristles 3, and then passing the other end through the outer casing 2 and connecting it to the base plate 1, the brush shaft 5 is further stabilized through the connection and restraint of the brush bristles 3, the base plate 1, and the outer casing 2, thus reducing the shaking and deviation of the brush bristles 3 during operation. Finally, a reset component 6 is connected to the brush shaft 5. The reset component 6 is used to correct the deviation of the brush bristles 3. The reset component 6 can generate a restoring force, allowing the brush bristles 3 to return to the correct position and re-engage with the contacts. The presence of the reset component 6 greatly improves the reliability of the contact between the brush bristles 3 and the contacts, effectively avoiding the open circuit problem caused by the brush bristles 3 deviating from the contacts, extending the service life of the device, and reducing the risk of failure. Therefore, this application solves the problem of the brush bristles 3 deviating from the contacts through the cooperation of various components, especially through the restraining and correcting effects of the brush shaft 5 and the reset component 6.

[0026] In this application, it is also considered that the traditional brush bristles 3 are made of cylindrical bent metal wires. During tire rotation, there will inevitably be friction between the brush bristle 3 assembly and the metal conductive slip ring, and there will inevitably be gaps at the joints of the metal conductive slip ring. Therefore, after friction, the metal wires of the brush bristle 3 assembly will become thinner or even break. When the metal wires pass through the gaps at the joints of the metal conductive slip ring, there is a risk of the metal wires getting stuck in the gaps, leading to a loss of contact. Therefore, by improving the brush bristle 3 assembly, the cross-section of the brush bristles 3 is set in a block shape, which greatly increases the contact area of ​​the brush bristle 3 contact points. In addition, friction during operation is reduced, lowering the risk of brush bristle 3 breakage.

[0027] In this application, the reset component 6 includes a spring, which is fitted onto the brush bristle shaft 5, with both ends of the spring connected to the brush bristle shaft 5 and the base plate 1, respectively. The spring's elastic properties enable the brush bristles 3 to correct their deviation and compensate for pressure. When road bumps cause the brush bristles 3 to bounce up, the spring can also reset the brush, eliminating the need for additional complex mechanical structures or electronic control systems to perform these functions.

[0028] In this application, a limiting stop 10 is provided on the base plate 1, and a limiting ring 7 is provided on the brush filament shaft 5. One end of the spring abuts against the limiting stop 10, and the other end abuts against the limiting ring 7. The limiting stop 10 and the limiting ring 7 cooperate with each other to provide a clear axial positioning reference for the brush filament shaft 5, restricting the free movement of the brush filament shaft 5 in the axial direction. This ensures that the brush filament shaft 5 is always in the correct position, avoiding problems such as poor contact or deviation between the brush filaments 3 and the contact points caused by axial movement of the brush filament shaft 5, and improving the overall mechanical structural stability and operational accuracy of the device. For example, during tire rotation, the device will be subjected to various vibrations and impacts. The cooperation between the limiting stop 10 and the limiting ring 7 can effectively resist these external forces. When vibration or impact attempts to cause axial displacement of the brush filament shaft 5, friction and mechanical resistance will be generated at the contact surface between the limiting stop 10 and the limiting ring 7, preventing the movement of the brush filament shaft 5. Meanwhile, the spring acts as a buffer between the two, absorbing some of the vibration energy and further enhancing the resistance to vibration and impact. Additionally, since the base plate 1 is generally made of plastic, a washer 8 is provided on the inner wall of the limiting stop 10 to prevent wear caused by the spring. The other end of the spring abuts against the washer 8. The friction generated by the spring abutting against the washer 8 acts directly on the washer 8, ensuring the stability of the base plate 1 structure.

[0029] In this application, the brush bristles 3 are provided with clamping holes 30 that are adapted to the brush bristle lead 4, and the brush bristles 3 are provided with threaded holes 31 for connecting to the brush bristle shaft 5. The clamping holes 30 and threaded holes 31 are connected, and the limiting ring 7 presses against the top of the threaded hole 31. The short wire of the brush bristle lead 4 is connected in the clamping hole 30 and contacts the limiting ring 7. The clamping holes 30, threaded holes 31 and limiting ring 7 together constitute an interconnected structural system. The clamping holes 30 are used to fix the brush bristle lead 4, the threaded holes 31 are used to connect the brush bristle shaft 5, and the limiting ring 7 plays a connecting and limiting role. The contact between the brush bristle lead 4 and the limiting ring 7 can press the wire harness, so that the brush bristle lead 4 is firmly fixed, avoiding the original process problem of welding beryllium copper to metal, which is difficult to weld. In addition, to facilitate the connection between the clamping hole 30 and the threaded hole 31, the brush bristles 3 are provided with a countersunk groove 32 at the top of the threaded hole 31, and the limiting ring 7 is pressed against the countersunk groove 32, and the countersunk groove 32 is connected to the clamping hole 30.

[0030] In the description of this application, it should be noted that the terms "upper," "lower," 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 application and simplifying the description, and do not 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 application. Unless otherwise expressly specified and limited, the terms "installed," "connected," and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; 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 between two elements. For those skilled in the art, the specific meaning of the above terms in this application can be understood according to the specific circumstances.

[0031] It should be noted that in this application, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0032] The above description is merely a specific embodiment of this application, enabling those skilled in the art to understand or implement this application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of this application. Therefore, this application is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features claimed herein.

Claims

1. An electrical signal rotation transmission device, characterized in that, It includes: Base plate (1); The outer shell (2) is provided in two sets, and the two sets of the outer shell (2) are respectively arranged on both sides of the base plate (1); The brush bristle assembly is provided in two sets. The two sets of brush bristle assemblies are respectively connected to the two housings (2), and each set of brush bristle assemblies includes two brush bristles (3). The two brush bristles (3) are symmetrically connected to the housings (2) and slide in cooperation with the housings (2). The brush bristle outlet (4) is arranged in a Y shape, and the two ends of the brush bristle outlet (4) on the same side are respectively connected to the same brush bristle (3), and the third end passes through the outer shell (2) and the bottom plate (1) in sequence. The brush shaft (5) has one end threadedly connected to the brush bristles (3), and the other end passes through the outer shell (2) and is connected to the base plate (1); A reset member (6) is connected to the brush shaft (5) and is used to correct the deviation of the brush bristles (3).

2. The electrical signal rotation transmission device as described in claim 1, characterized in that: The cross-section of the bristles (3) is block-shaped.

3. The electrical signal rotation transmission device as described in claim 1, characterized in that: The reset component (6) includes a spring, which is fitted on the brush shaft (5), and the two ends of the spring are connected to the brush shaft (5) and the base plate (1) respectively.

4. The electrical signal rotation transmission device as described in claim 3, characterized in that: The base plate (1) is provided with a limiting stop (10), the brush shaft (5) is provided with a limiting ring (7), one end of the spring abuts against the limiting stop (10), and the other end abuts against the limiting ring (7).

5. The electrical signal rotation transmission device as described in claim 4, characterized in that: The inner wall of the limiting stop (10) is also provided with a gasket (8), and the other end of the spring abuts against the gasket (8).

6. The electrical signal rotation transmission device as described in claim 4, characterized in that: The brush bristles (3) are provided with clamping holes (30) that are adapted to the brush bristle outlet (4). The brush bristles (3) are provided with threaded holes (31) for connecting to the brush bristle shaft (5). The clamping holes (30) are connected to the threaded holes (31). The limiting ring (7) presses against the top of the threaded holes (31). The two ends of the brush bristle outlet (4) on the same side are connected to the clamping holes (30) and contact the limiting ring (7).

7. The electrical signal rotation transmission device as described in claim 6, characterized in that: The brush bristles (3) are provided with a countersunk groove (32) at the top of the threaded hole (31), and the limiting ring (7) is pressed against the countersunk groove (32). The countersunk groove (32) is connected to the pressing hole (30).

8. The electrical signal rotation transmission device as described in claim 1, characterized in that: The bottom of the base plate (1) is provided with a boss (11), and the two sets of outer shells (2) are respectively located on both sides of the boss (11) and fixed to the base plate (1).

9. The electrical signal rotation transmission device as described in claim 8, characterized in that: The outer shell (2) is provided with bolt holes (90), and a bolt (9) is connected to the bottom plate (1) and the bolt holes (90).

10. The electrical signal rotation transmission device as described in claim 1, characterized in that: The outer shell (2) is provided with a waist-shaped hole (20), and the bottom plate (1) is provided with a round hole (12) concentric with the waist-shaped hole (20). The third end of the brush filament (4) passes through the waist-shaped hole (20) and the round hole (12) in sequence.

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