Wireless clock spring for automobile

Abstract

The utility model discloses a wireless clock spring for an automobile, which comprises an annular upper shell, an annular middle shell, an annular lower shell, a fixing ring, an upper circuit board, a lower circuit board and a central shaft, the upper circuit board is fixedly connected to the upper end face of the central shaft through screws, and the lower circuit board is fixedly connected to the upper end face of the lower shell through screws. The upper shell is clamped with an inner hole of the center shaft and is fixed through a screw, the lower shell is clamped with the bottom of the center shaft through a fixing ring, and the middle shell and the lower shell are clamped through a hook and are relatively and fixedly connected; conducting rings and insulating gaskets are arranged on the outer surface of the center shaft in a staggered mode in the axial direction, and an upper connecting pin connected with the upper circuit board is led out of each conducting ring. The left circuit board and the right circuit board are installed at the clamping grooves of the lower shell, the two sides of the left circuit board and the two sides of the right circuit board are connected with the conducting rings through conducting sliding wires respectively, and the left circuit board and the right circuit board are connected with the lower circuit board through lower connecting pins. According to the utility model, flat wire communication in the clock spring is replaced, and the transmission problem is solved through the conductive channel.

Description

Technical Field

[0001] The utility model relates to the technical field of electrical connectors for vehicles, and particularly relates to a wireless clock spring for automobiles. Background Art

[0002] As a functional module for transmitting communication between electrical components (such as horns, steering wheel switches, airbags, etc.) on the automobile steering wheel and the whole vehicle, the clock spring is required to have reliable performance, be durable, and be convenient for maintenance and disassembly.

[0003] The inventor found in the process of realizing the utility model that:

[0004] The internal structure of the existing clock spring is usually composed of one or several FFC flexible cables with specified lengths and / or equipped with a lining structure. During vehicle driving or maintenance, the "centering and positioning" step of the clock spring must be carried out, otherwise there will be risks such as the cable being pulled off and the number of turns on both sides being inconsistent; at the same time, this flexible cable is prone to stacking and jamming under different vehicle use environments (such as coal mines, sand fields, salt fields, etc.), resulting in damage to the clock spring, and further causing the failure of functions such as buttons, horns, and airbags on the steering wheel, posing a great hidden danger. Summary of the Invention

[0005] In order to solve the problems existing in the prior art, the utility model provides a wireless clock spring for automobiles.

[0006] Invention Concept: Considering that professional personnel must perform operations such as "the vehicle front wheels are in a straight state and the clock spring is centered" during the assembly or maintenance of the current clock spring, a wireless clock spring that can be quickly installed or disassembled without any additional operations is considered.

[0007] Therefore, the technical solution of the utility model is: a wireless clock spring for automobiles, including an annular upper shell, a middle shell, a lower shell and a fixing ring, characterized in that: it further includes an upper circuit board, a lower circuit board and a central shaft. The upper circuit board is fixedly connected to the upper end surface of the central shaft by screws, and the lower circuit board is fixedly connected to the upper end surface of the lower shell by screws.

[0008] The upper shell forms a series connection structure by being clamped with the inner hole of the central shaft and fixed by screws. The lower shell forms a series connection structure by being clamped with the bottom of the central shaft through the fixing ring. The middle shell and the lower shell form a relatively fixed structure by being clamped with hooks.

[0009] Conductive rings and insulating gaskets are arranged axially and alternately on the outer surface of the central shaft. An upper connection pin connected to the upper circuit board is led out from each conductive ring. A first pin assembly is arranged on the upper circuit board. The upper connection pins are electrically connected to the first pin assembly through the internal circuit of the upper circuit board.

[0010] It also includes a left circuit board and a right circuit board installed at the lower shell slot, and the left circuit board and the right circuit board are respectively provided with a plurality of groups of conductive sliding wires spaced from top to bottom on both sides of the opposite surfaces, and each group of conductive sliding wires on the same circuit board is connected to the same conductive ring, the conductive sliding wires on the left circuit board and the right circuit board are staggered and electrically connected to the corresponding staggered conductive rings, and lower connecting pins electrically connected to each corresponding group of conductive sliding wires are respectively led out from the left circuit board and the right circuit board, and the lower connecting pins are connected to the lower circuit board, and a second pin assembly is provided on the lower circuit board, and the lower connecting pins are respectively connected to the second pin assembly through the built-in circuit of the lower circuit board.

[0011] A further improvement to the above technical solution is that the outer diameter of the insulating gasket is larger than the outer diameter of the conductive ring, and the two sides are high and the middle is low to form a number of conductive channels, which is convenient for the installation of the elastic conductive sliding wire and the stable connection with the conductive ring.

[0012] A further improvement to the above technical solution is that the conductive ring, insulating gasket and central axis are assembled by lamination and then cured with sealant to form an integrated module. The number of conductive channels can be increased or decreased as needed, the cost can be controlled, and the module has strong versatility, replacing the traditional FFC wire winding internal structure.

[0013] A further improvement to the above technical solution is that the conductive sliding wires are made of elastic parts, and each group of conductive sliding wires are opened in an eight-shaped shape and elastically crimped together on the same conductive ring, which is convenient for installation and maintenance, while ensuring the reliability of electrical connection.

[0014] A further improvement to the above technical solution is that connecting pin installation grooves are respectively provided on both sides of the outer surface of the central axis, so as to facilitate the installation of the upper connecting pin and avoid circuit breaking caused by interference.

[0015] A further improvement to the above technical solution is that: the outer circumference of the middle shell is evenly distributed with raised clock spring mounting bosses, and mounting holes are provided on the bosses.

[0016] A further improvement to the above technical solution is that: an upper plug interface is provided on the top of the upper shell, the first pin assembly is installed in the upper plug interface, and a toggle connecting column and a warning label are also provided on the top of the upper shell; a lower plug interface is convexly provided on the outer circumference of the lower shell, and the second pin assembly is installed in the lower plug interface; a protruding fan-shaped shift block is provided on the outer circumference of the fixed ring, which drives the fan-shaped shift block to realize the corresponding function when the direction is rotated.

[0017] Beneficial effects: Compared with the prior art, in the present utility model, a rotor is formed by connecting a central shaft with an upper shell and a fixing ring, and a stator is formed by fixedly connecting a middle shell and a lower shell with a connecting part protruding from the outer ring of the upper bearing of the steering column under the steering wheel. During use, the steering wheel is not limited by the number of turns during rotation, reducing the centering steps during assembly, eliminating the risk of wire harness breakage, overcoming the problem of difficult maintenance and disassembly for component replacement, effectively reducing the quality risk and the trouble of maintenance. In particular, the generalization and modularization degree of the clock spring product are greatly improved. Brief Description of the Drawings

[0018] Figure 1 is the exploded view of the installation of the present utility model Figure 1 .

[0019] Figure 2 is the exploded view of the installation of the present utility model Figure 2 .

[0020] Figure 3 is the internal structure diagram of the present utility model without the upper shell installed.

[0021] Figure 4 is Figure 3 the internal structure diagram without the upper circuit board installed in

[0022] Figure 5 is Figure 4 the internal structure diagram without the central shaft installed in

[0023] Figure 6 is the connection structure diagram of the central shaft connecting member of the present utility model on the lower shell.

[0024] Figure 7 is the structure diagram of the central shaft of the present utility model.

[0025] Figure 8 is the top view of the conductive slip wire of the present utility model installed on the left / right circuit board.

[0026] Figure 9 is the three-dimensional view of the present utility model.

[0027] As shown in the figure: 1. Upper shell; 11. Upper socket; 12. Toggle connection column; 13. Warning label; 2. Middle shell; 21. Boss; 3. Lower shell; 31. Lower socket; 4. Fixing ring; 41. Sector-shaped dial block; 5. Upper circuit board; 51. First pin assembly; 6. Lower circuit board; 61. Second pin assembly; 7. Central shaft; 71. Conductive ring; 72. Insulating gasket; 73. Upper connection pin; 74. Connection pin installation groove; 81. Screw; 82. Screw; 83. Screw; 91. Left circuit board; 92. Right circuit board; 93. Conductive slip wire; 94. Lower connection pin. Detailed Description of the Invention

[0028] The technical solution of the present utility model will be clearly and completely described below in conjunction with the accompanying drawings, but this embodiment should not be construed as a limitation to the present utility model.

[0029] The present utility model is as Figures 1 to 9 shown:

[0030] A wireless clock spring for an automobile, comprising an annular upper shell 1, a middle shell 2, a lower shell 3 and a fixing ring 4, and further comprising an upper circuit board 5, a lower circuit board 6 and a central shaft 7. The upper circuit board 5 is fixedly connected to the upper end surface of the central shaft 7 by a screw 81, and the lower circuit board 6 is fixedly connected to the upper end surface of the lower shell 3 by a screw 82.

[0031] The upper shell 1 forms a series connection structure by being clamped with the inner hole of the central shaft and fixed by a screw 83. The lower shell 3 forms a series connection structure by being clamped with the bottom of the central shaft 7 through the fixing ring 4. A relative fixing structure is formed between the middle shell 2 and the lower shell 3 by being clamped with a hook.

[0032] On the outer surface of the central shaft 7, conductive rings 71 and insulating gaskets 72 are arranged axially in a staggered manner. The outer diameter of the insulating gasket is larger than that of the conductive ring, and several conductive channels are formed with higher sides and lower middle parts, which is convenient for the installation of elastic conductive filaments and the stable connection with the conductive rings. The conductive rings, insulating gaskets and the central shaft are assembled by lamination and then solidified with a sealant to form an integrated module. The number of conductive channels can be increased or decreased according to needs, the cost can be controlled, and the versatility is strong, replacing the traditional FFC wire winding internal structure. An upper connection pin 73 connected to the upper circuit board is led out from each conductive ring. A first pin assembly 51 is arranged on the upper circuit board 5, and the upper connection pins 73 are electrically connected to the first pin assembly 51 through the internal circuit of the upper circuit board respectively.

[0033] It further comprises a left circuit board 91 and a right circuit board 92 installed at the card slots of the lower shell 3. On both sides of the opposite surfaces of the left circuit board and the right circuit board, several groups of conductive filaments 93 are arranged at intervals from top to bottom, and each group of conductive filaments on both sides of the same circuit board is connected to the same conductive ring 71. The conductive filaments are made of elastic parts, and each group of conductive filaments is opened in a shape of an eight and elastically pressed against the same conductive ring together. Using elastic parts is convenient for installation and maintenance, and at the same time ensures the reliability of electrical connection. The conductive filaments 93 on the left circuit board 91 and the right circuit board 92 are arranged in a staggered manner and are respectively electrically connected to the corresponding staggered conductive rings. Lower connection pins 94 electrically connected to the corresponding groups of conductive filaments are led out from the left circuit board and the right circuit board respectively. The lower connection pins are connected to the lower circuit board 6. A second pin assembly 61 is arranged on the lower circuit board, and the lower connection pins 94 are respectively connected to the second pin assembly 61 through the internal circuit of the lower circuit board.

[0034] In this embodiment, considering the space limitation, connecting pin installation grooves 74 are respectively provided on both sides of the outer surface of the central axis 7, and the upper connecting pins are respectively led out on both sides to facilitate the installation of the upper connecting pins and avoid circuit breaking caused by interference.

[0035] In this embodiment, the outer periphery of the middle shell 2 is uniformly provided with raised clock spring mounting bosses 21, and mounting holes are provided on the bosses to facilitate the fixation of the wireless clock spring; at the same time, a hanging part cooperating with the hook of the lower shell is provided around the middle shell.

[0036] In this embodiment, an upper plug interface 11 is provided on the top of the upper shell 1, and the first pin assembly is installed in the upper plug interface. A toggle connecting column 12 and a warning label 13 are also provided on the top of the upper shell 1; a lower plug interface 31 is convexly provided on the outer circumferential surface of the lower shell 3, and the second pin assembly 61 is installed on the lower plug interface; a protruding fan-shaped shift block 41 is provided on the outer circumferential surface of the fixing ring 4, which drives the fan-shaped shift block to realize the corresponding function when the direction is rotated.

[0037] Installation method of the utility model:

[0038] 1. Stick the warning label 13 on the surface of the upper shell for later use;

[0039] 2. The upper circuit board is welded to the first pin assembly, and the lower circuit board is welded to the second pin assembly and the lower connecting pin, and they are ready for use;

[0040] 3. The central axis, conductive ring, and insulating sheet are laminated and assembled, and then the sealant is cured to form a core circuit module for standby use;

[0041] 4. Solder and fix the conductive wires on the left and right circuit boards respectively for future use;

[0042] 5. Install the upper circuit board on the upper end face of the central axis, fix it with four screws, weld the connecting pin tail, cut the solder legs and install them into the lower shell, and clamp the fixing ring to ensure flexible rotation between the central axis and the lower shell;

[0043] 6. Install the left and right circuit boards into the slots of the lower shell, use the tooling to ensure that the strips are aligned with the corresponding slots, and weld and fix them to the lower circuit board through the connecting pins. After ensuring flexible rotation, fix the lower circuit board to the upper end surface of the lower shell with screws;

[0044] 7. Install the upper shell and the middle shell, the middle shell is snap-fitted with the lower shell, and the upper shell is fastened to the hook corresponding to the inner hole of the central axis component 5 through the hook;

[0045] 8. After all performance parameters are tested and found to be qualified, the upper shell is fixed to the upper end face of the central axis by screws and the assembly is completed.

[0046] The working principle of this utility model:

[0047] The central axis of the utility model is respectively connected to the upper shell and the fixing ring to form a rotor, and the middle shell and the lower shell are fixedly connected through a connecting part extending from the outer ring of the bearing on the lower column of the steering wheel to form a stator. During use, the steering wheel is not limited by the number of turns during rotation, and only needs to maintain electrical connection through the sliding connection between the conductive sliding wire and the conductive channel; when the control button on the steering wheel is activated, the electrical signal sequentially passes through the first pin assembly, the upper circuit board, the conductive ring, the conductive sliding wire, the left circuit board or the right circuit board, the lower circuit board, the second pin assembly, and then is connected to the vehicle control system through the connector, so as to realize the control of the corresponding function.

[0048] The parts not detailed in this specification are well-known technologies in the art.

[0049] The above are only the preferred embodiments of the utility model, and are not intended to limit the utility model. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the utility model shall be included within the protection scope of the utility model.

Claims

1. A wireless clock spring for automobile, comprising an annular upper shell, a middle shell, a lower shell and a fixing ring, characterized in that: It also includes an upper circuit board, a lower circuit board and a central axis, wherein the upper circuit board is fixedly connected to the upper end surface of the central axis by screws, and the lower circuit board is fixedly connected to the upper end surface of the lower shell by screws. The upper shell is connected to the inner hole of the central shaft and fixed by screws to form a serial structure, the lower shell is connected to the bottom of the central shaft by a fixing ring to form a serial structure, and the middle shell and the lower shell are relatively fixedly connected by hooks; Conductive rings and insulating gaskets are staggered along the axial direction on the outer surface of the central shaft, and an upper connecting pin connected to the upper circuit board is led out from each conductive ring. The upper circuit board is provided with a first pin assembly, and the upper connecting pins are electrically connected to the first pin assembly through the built-in circuit of the upper circuit board; It also includes a left circuit board and a right circuit board installed at the lower shell slot, and the left circuit board and the right circuit board are respectively provided with a plurality of groups of conductive sliding wires spaced from top to bottom on both sides of the opposite surfaces, and each group of conductive sliding wires on the same circuit board is connected to the same conductive ring, the conductive sliding wires on the left circuit board and the right circuit board are staggered and electrically connected to the corresponding staggered conductive rings, and lower connecting pins electrically connected to each corresponding group of conductive sliding wires are respectively led out from the left circuit board and the right circuit board, and the lower connecting pins are connected to the lower circuit board, and a second pin assembly is provided on the lower circuit board, and the lower connecting pins are respectively connected to the second pin assembly through the built-in circuit of the lower circuit board.

2. According to claim 1, a wireless clock spring for automobile, characterized in that: The outer diameter of the insulating gasket is larger than the outer diameter of the conductive ring, and the insulating gasket is high at two sides and low in the middle to form a plurality of conductive channels.

3. A wireless clock spring for automobile according to claim 1 or 2, characterized in that: The conductive ring, insulating gasket and central axis are assembled by lamination and then cured with sealant to form an integrated module. The number of conductive channels can be increased or decreased as needed.

4. The wireless clock spring for automobile according to claim 3, characterized in that: The conductive sliding wires are elastic pieces, and each group of conductive sliding wires are opened in an eight-shaped shape and elastically pressed together on the same conductive ring.

5. A wireless clock spring for automobile according to claim 1, 2 or 4, characterized in that: Connecting needle mounting grooves are respectively arranged on both sides of the outer surface of the central shaft.

6. The wireless clock spring for automobile according to claim 5, characterized in that: The outer periphery of the middle shell is evenly distributed with raised clock spring mounting bosses, and mounting holes are arranged on the bosses.

7. The wireless clock spring for automobile according to claim 6, characterized in that: An upper plug interface is provided on the top of the upper shell, and the first pin assembly is installed in the upper plug interface. A toggle connecting column and a warning label are also provided on the top of the upper shell; a lower plug interface is convexly provided on the outer circumference of the lower shell, and the second pin assembly is installed in the lower plug interface; a protruding fan-shaped dial block is provided on the outer circumference of the fixed ring, which drives the fan-shaped dial block to realize the specified function when the direction is rotated.

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