Clock spring with novel conductive structure

Abstract

The utility model discloses a clock spring with novel conductive structure, including shell, upper knob cover and control component, control component is located between shell and upper knob cover, its characterized in that: control component includes main circuit board and with the conductive unit of main circuit board electric connection, and the conductive unit includes a plurality of insulating sheets, a plurality of metal sheets and a plurality of conductive rings, and the insulating sheet, metal sheet and conductive ring are arranged mutually up and down and are stacked. The utility model discloses reasonable in structure design, through with the conductive unit - the insulating sheet, metal sheet and conductive ring are stacked regularly mutually up and down, have promoted the conductive performance of clock spring whole, thereby have made the life of clock spring.

Description

Technical Field

[0001] This utility model relates to the automotive field, and in particular to a clock spring with a novel conductive structure. Background Technology

[0002] The clock spring, also known as a rotary connector, airbag clock spring, or spiral cable, is used for the rotary connection between the automotive steering wheel airbag and its electrical control system. It is typically installed below the steering wheel to connect the main airbag to the airbag wiring harness, or the steering wheel's switch buttons to the control unit wiring harness. After assembly, the clock spring is transported to the assembly workshop and installed on the steering column. It rotates with the steering wheel, ensuring the normal transmission of electrical signals in the airbag circuit and the various function button circuits on the steering wheel during steering wheel rotation. The clock spring has evolved from a single airbag circuit to a multi-functional integrated module, and from simple body control functions to auxiliary functions that meet noise reduction requirements for comfortable operation. Especially in high-end models, there is an increasing demand for multi-functional integration and comfortable operation that meets noise reduction requirements, thereby increasing differentiation and brand recognition compared to lower-end models and enhancing the core value of the product.

[0003] The existing clock spring has an unreasonable conductive structure design, which affects the lifespan of the clock spring and, in severe cases, causes the clock spring to malfunction, creating a potential hazard during driving. Utility Model Content

[0004] The technical problem to be solved by this invention is to provide a clock spring with a novel conductive structure, in light of the current state of the technology.

[0005] The technical solution adopted by this utility model to solve the above-mentioned technical problems is as follows: a clock spring with a novel conductive structure, including a shell, an upper knob cover and a control component. The control component is disposed between the shell and the upper knob cover. The control component includes a main circuit board and a conductive unit electrically connected to the main circuit board. The conductive unit includes a plurality of insulating sheets, a plurality of metal sheets and a plurality of conductive rings. The insulating sheets, metal sheets and conductive rings are stacked on top of each other.

[0006] Preferably, the control component further includes a base and a knob shaft fixedly mounted on the base. The base has a fixing hole for connecting and fixing the knob shaft, and the main circuit board is fixedly mounted at the end of the knob shaft away from the base.

[0007] Preferably, the conductive unit is sleeved and fixed on the knob shaft, and metal sheets are arranged on both sides of the conductive ring, and metal sheets are arranged on at least one side of the insulating sheet; a bearing is also provided in the fixing hole, and the outer wall of the bearing is integrally injection molded and assembled with the inner wall of the fixing hole, and the outer wall of the knob shaft near the bottom is connected to the inner wall of the bearing.

[0008] Preferably, the upper surface of the main circuit board is fixedly provided with a pin assembly electrically connected to the main circuit board, and the upper surface of the upper knob cover extends upward to provide a pin socket for assembling the pin assembly. The bottom of the pin socket is provided with a pin hole for the pin assembly to pass through, and the pin assembly is arranged in the pin socket through the pin hole.

[0009] Preferably, it also includes a side circuit board, which is vertically disposed on the side of the knob shaft. The side circuit board is electrically connected to the main circuit board. At least two sets of conductive wires are passed through the side circuit board, and the two sets of conductive wires are respectively arranged at both ends of the side circuit board. Each set of conductive wires consists of several beryllium copper wires. One end of the beryllium copper wire is inserted and fixed on the side circuit board, and the other end of the beryllium copper wire passes through and is connected to the conductive ring.

[0010] Preferably, the outer casing includes a housing, the control components are arranged inside the housing, the bottom of the housing is provided with a lower knob cover, the bottom of the housing is provided with a through hole for the lower knob cover to pass through, the lower knob cover passes through the through hole and the fixing hole in sequence, and the outer wall of the lower knob cover is connected to the inner wall of the knob shaft.

[0011] Preferably, the conductive unit includes several PCBA boards and several conductive rings, with the PCBA boards and conductive rings stacked alternately. Both the PCBA boards and conductive rings are sleeved and fixed on the knob shaft, and both sides of the PCBA boards are coated with a copper film structure for conductivity.

[0012] Compared with the prior art, the advantages of this utility model are: by stacking the conductive units—insulating sheet, metal sheet and conductive ring—in a regular manner, the overall conductivity of the clock spring is improved, thereby increasing the life of the clock spring. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is an exploded structural diagram of the present invention; Figure 3 This is an exploded structural diagram of the control component of this utility model; Figure 4 This is a partial side view of the control component of this utility model; Figure 5 This is a cross-sectional structural diagram of the present invention; Figure 6 This is a cross-sectional structural diagram of the present invention; Figure 7 This is a schematic diagram of the structure of the control component of this utility model.

[0014] Reference numerals: 1. Outer shell; 2. Upper knob cover; 3. Control component; 4. Main circuit board; 5. Conductive unit; 6. Insulating sheet; 7. Metal sheet; 8. Conductive ring; 9. Base; 10. Knob shaft; 11. Fixing hole; 12. Bearing; 13. Pin assembly; 14. Pin socket; 15. Pin hole; 16. Housing; 17. Lower knob cover; 18. Through hole; 19. Side circuit board; 20. Conductive wire; 21. Beryllium copper wire. Detailed Implementation

[0015] The following drawings will disclose several embodiments of this utility model. For clarity, many practical details will be described in the following description. However, it should be understood that these practical details should not be used to limit this utility model. That is, in some embodiments of this utility model, these practical details are not essential. In addition, for the sake of simplicity, some conventional structures and components will be shown in the drawings in a simple schematic manner.

[0016] It should be noted that all directional indicators in this utility model embodiment, such as up, down, left, right, front, back, etc., are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicator will also change accordingly.

[0017] Furthermore, in addition to indicating orientation or positional relationship, the aforementioned terms may also be used to indicate other meanings. For example, the term "above" may also be used in some cases to indicate a certain dependency or connection relationship. For those skilled in the art, the specific meaning of these terms in this utility model can be understood according to the specific circumstances.

[0018] Furthermore, the terms "installation," "setting," "equipped with," "connection," "linking," and "socketing" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral structures; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium, or internal connections between two devices, components, or parts. The connection methods described herein are existing technologies without any modifications and are common knowledge to those skilled in the art. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0019] Furthermore, in this utility model, the use of terms such as "first" and "second" is for descriptive purposes only and does not specifically refer to any order or sequence, nor is it intended to limit the utility model. They are merely used to distinguish components or operations described with the same technical terms and should not be construed as indicating or implying their relative importance or implicitly specifying the number of indicated technical features. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the technical solutions of various embodiments can be combined with each other, but only if they are feasible for those skilled in the art. If a combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model. Example 1

[0020] like Figures 1 to 6 As shown, this utility model provides a clock spring with a novel conductive structure, including a housing 1, an upper knob cover 2, and a control component 3. The control component 3 is located between the housing 1 and the upper knob cover 2. Specifically, the control component 3 includes a main circuit board 4 and a conductive unit 5 electrically connected to the main circuit board 4. The conductive unit 5 includes several insulating sheets 6, several metal sheets 7, and several conductive rings 8, which are stacked one on top of the other.

[0021] The control component 3 also includes a base 9 and a knob shaft 10 fixed on the base 9; specifically, the base 9 has a fixing hole 11 for connecting and fixing the knob shaft 10, and the main circuit board 4 is fixed at the end of the knob shaft 10 away from the base 9.

[0022] The conductive unit 5 is sleeved and fixed on the knob shaft 10. Metal sheets 7 are arranged on both sides of the conductive ring 8, and metal sheets 7 are arranged on at least one side of the insulating sheet 6. Specifically, a bearing 12 is also provided in the fixing hole 11. The outer wall of the bearing 12 is integrally injection molded and assembled with the inner wall of the fixing hole 11. The outer wall of the knob shaft 10 near the bottom is connected to the inner wall of the bearing 12.

[0023] The installation method of bearing 12 has been changed from the existing separate assembly to the integral injection molding assembly connection with the inner wall of fixing hole 11 in this utility model, which solves the problem that bearing 12 cannot be firmly connected during the assembly process and reduces the risk of bearing 12 loosening and falling off in the later stage.

[0024] The upper surface of the main circuit board 4 is fixedly provided with a pin assembly 13 electrically connected to the main circuit board 4; specifically, the upper surface of the upper knob cover 2 extends upward to provide a pin seat 14 for assembling the pin assembly 13, and the bottom of the pin seat 14 is provided with a pin hole 15 for the pin assembly 13 to pass through, and the pin assembly 13 is arranged in the pin seat 14 through the pin hole 15.

[0025] It also includes a side circuit board 19, which is vertically mounted on the side of the knob shaft 10. The side circuit board 19 is electrically connected to the main circuit board 4. At least two sets of conductive wires 20 are threaded through the side circuit board 19. Specifically, the two sets of conductive wires 20 are respectively arranged at both ends of the side circuit board 19. Each set of conductive wires 20 consists of several beryllium copper wires 21. One end of the beryllium copper wire 21 is inserted and fixed on the side circuit board 19, and the other end of the beryllium copper wire 21 passes through and is connected to the conductive ring 8. The beryllium copper wire 21 plays a role in conducting electricity.

[0026] The outer casing 1 includes a housing 16, and the control component 3 is arranged inside the housing 16. The bottom of the outer casing 1 is provided with a lower knob cover 17. Specifically, the bottom of the outer casing 1 is provided with a through hole 18 for the lower knob cover 17 to pass through. The lower knob cover 17 passes through the through hole 18 and the fixing hole 11 in sequence. The outer wall of the lower knob cover 17 is connected to the inner wall of the knob shaft 10.

[0027] The advantage of this invention is that by regularly stacking the conductive unit 5—insulating sheet 6, metal sheet 7, and conductive ring 8—on top to bottom, the overall conductivity of the clock spring is improved, thereby extending the lifespan of the clock spring. Example 2

[0028] Unlike Embodiment 1, in this embodiment, the conductive unit 5 includes several PCBA boards and several conductive rings 8, which are stacked alternately. Specifically, both the PCBA boards and the conductive rings 8 are sleeved and fixed on the knob shaft 10, and both sides of the PCBA boards are coated with copper film structures for conductivity.

[0029] In Example 1, the metal sheet 7 and the insulating sheet 6 are replaced by a PCBA board. Both sides of the PCBA board are coated with copper film structures for conductivity, which insulates the middle of the PCBA board and allows each side to conduct electricity independently, thus improving the overall conductivity of the conductive unit 5. Other structures are the same as in Example 1.

[0030] 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.

[0031] All standard parts used in this invention can be purchased from the market, and irregular parts can be customized according to the description and drawings. The specific connection methods of each part adopt conventional methods such as bolts, rivets, welding, and bonding that are mature in the existing technology, and will not be described in detail here.

[0032] The above description is only a preferred embodiment of this utility model. For those skilled in the art, various modifications and variations can be made in the specific implementation and application scope based on the idea of ​​this utility model. The content of this specification should not be construed as a limitation of this utility model. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of this utility model should be included within the scope of the claims of this utility model.

Claims

1. A clock spring with a novel conductive structure, comprising a housing, an upper knob cover, and a control assembly, wherein the control assembly is disposed between the housing and the upper knob cover, characterized in that: The control component includes a main circuit board and conductive units electrically connected to the main circuit board. The conductive units include several insulating sheets, several metal sheets and several conductive rings, which are stacked one on top of the other.

2. A clock spring with a novel conductive structure according to claim 1, characterized in that: The control assembly also includes a base and a knob shaft fixedly mounted on the base. The base has a fixing hole for connecting and fixing the knob shaft, and the main circuit board is fixedly mounted on the end of the knob shaft away from the base.

3. A clock spring with a novel conductive structure according to claim 2, characterized in that: The conductive unit is sleeved and fixed on the knob shaft. Metal sheets are arranged on both sides of the conductive ring, and metal sheets are arranged on at least one side of the insulating sheet. A bearing is also provided in the fixing hole. The outer wall of the bearing is integrally injection molded and assembled with the inner wall of the fixing hole. The outer wall of the knob shaft near the bottom is connected to the inner wall of the bearing.

4. A clock spring with a novel conductive structure according to claim 1, characterized in that: The main circuit board is fixedly provided with a pin assembly that is electrically connected to the main circuit board. The upper surface of the upper knob cover extends upward to provide a pin socket for assembling the pin assembly. The bottom of the pin socket is provided with a pin hole for the pin assembly to pass through. The pin assembly is arranged in the pin socket through the pin hole.

5. A clock spring with a novel conductive structure according to claim 2, characterized in that: It also includes a side circuit board, which is vertically mounted on the side of the knob shaft. The side circuit board is electrically connected to the main circuit board. At least two sets of conductive wires are threaded through the side circuit board, and the two sets of conductive wires are respectively arranged at both ends of the side circuit board. Each set of conductive wires consists of several beryllium copper wires. One end of the beryllium copper wire is inserted and fixed on the side circuit board, and the other end of the beryllium copper wire passes through and is connected to the conductive ring.

6. A clock spring with a novel conductive structure according to claim 2, characterized in that: The outer casing includes a housing, and the control components are arranged inside the housing. The bottom of the housing is provided with a lower knob cover, and the bottom of the housing has a through hole for the lower knob cover to pass through. The lower knob cover passes through the through hole and the fixing hole in sequence, and the outer wall of the lower knob cover is connected to the inner wall of the knob shaft.

7. A clock spring with a novel conductive structure according to claim 3, characterized in that: The conductive unit includes several PCBA boards and several conductive rings. The PCBA boards and conductive rings are stacked alternately. Both the PCBA boards and conductive rings are sleeved and fixed on the knob shaft. Both sides of the PCBA boards are coated with copper film structures for conductivity.

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