Ejector rod rapid assembly structure of automobile switch

Abstract

The utility model discloses a quick assembly structure for an ejector rod of an automobile switch, and relates to the related technical field of automobile switch accessories. The push rod structure comprises a circuit board and push rods, a push rod mounting through hole is formed in the position, corresponding to each button, of the circuit board, and two bonding pads used for being welded to the push rods or the microswitches are arranged on the two sides of each push rod mounting through hole. The top rod is provided with a patch metal welding pin which is welded with the bonding pad, and the patch metal welding pin is welded with the corresponding bonding pad. According to the utility model, the microswitch and the push rod can be welded at one time by adopting the same automatic welding equipment, and the push rod does not need to be additionally extruded and mounted through a press machine in the later period, so that the assembly process steps are reduced, the process is simpler and more convenient, and meanwhile, the working efficiency is also improved.

Description

Technical Field

[0001] The utility model belongs to the relevant technical field of automobile parts, and particularly relates to a push rod quick assembly structure of an automobile switch. Background Art

[0002] As the most direct expression between the driver and the vehicle, the switch plays a vital role in the vehicle. Especially during the entire driving process, if the driver expresses a certain intention or makes a certain driving action, he will use different switches at various positions to make signal prompts, such as steering wheel control switches, window control switches, etc. Therefore, the quality or performance of the switch will directly affect the safety of the entire driving and the comfort of the driver.

[0003] The automobile switch in the prior art is usually composed of a button, a housing, a micro switch, a circuit board, a bottom cover, etc. The circuit board is arranged on the bottom cover, the bottom cover is arranged in the housing, the micro switch is arranged on the circuit board, and the button is arranged on the surface of the housing for pressing the micro switch. However, according to the different configurations of the automobile, some buttons on the existing automobiles have functions and some have no functions. In this case, if a housing mold is opened for each configuration, two or more molds need to be opened, which is not only complicated in process but also high in cost. To this end, our company has designed a patent number: 202321211931.7, and the patent name is a technology for an automobile switch, which includes a button, a shell, a micro switch, a circuit board and a bottom cover. The circuit board is arranged on the bottom cover, the bottom cover is arranged in the shell, the micro switch is arranged on the circuit board, and the button is arranged on the surface of the shell for pressing the micro switch. The shape of the shell and the number of buttons are designed according to the highest configuration. The button includes a function key and a plug cover. The bottom of the function key corresponds to the micro switch on the circuit board. A top rod is arranged on the circuit board, and the bottom of the plug cover corresponds to the top rod on the circuit board. In this way, the structural setting can be based on the configuration requirements of the car. When the corresponding button function is required, it is only necessary to A micro switch is installed at the corresponding position of the board, and function keys are selected on the outer shell for assembly. If the corresponding key function is not needed, the ejector rod only needs to be installed at the corresponding key position on the circuit board, and a plug cover is selected on the outer shell for assembly. However, we found in the processing that when the key function is not used, since a press-in head is formed at the bottom of the ejector rod, the ejector rod uses a press to press the press-in head into the ejector rod mounting hole of the circuit board to ensure that the ejector rod is fixed. Therefore, it is necessary to weld the position for installing the micro switch first, and then put it into the press for ejector rod installation. Although such operation is convenient, it is easy to lead to low installation efficiency and complicated assembly process, so it needs to be improved. Utility Model Content

[0004] The utility model aims to provide a quick assembly structure of a push rod of an automobile switch, which solves the problem that the existing installation method of non-functional keys has low installation efficiency and causes complicated assembly process, so improvement is needed.

[0005] In order to solve the above technical problems, the utility model is achieved through the following technical solutions:

[0006] The utility model is a quick assembly structure of a push rod of an automobile switch, comprising a circuit board and a push rod, wherein a push rod mounting through hole is arranged at each position corresponding to a key on the circuit board, two welding pads for welding with the push rod or with a micro switch are arranged on both sides of each push rod mounting through hole, a patch metal welding pin for welding with the welding pad is arranged on the push rod, and the patch metal welding pin is welded to the corresponding welding pad.

[0007] Preferably, in order to further facilitate installation, the push rod includes a rod body, at the bottom of the rod body are provided with mounting columns that can be inserted into both sides of the push rod mounting through hole, above the rod body are provided with pressure columns for corresponding to the bottom of the blocking cover, and on both sides of the rod body are respectively integrally formed with a patch metal welding pin.

[0008] Preferably, in order to further improve the fixing strength, the patch metal soldering pin includes a bottom and a welding part, the bottom is a parallel structure inserted into the rod body, the welding part is perpendicular to the bottom, and the bottom and the welding part are combined to form an L-shaped structure, and the bottom of the connection between the bottom and the welding part is a curved surface structure.

[0009] Preferably, in order to avoid damaging the upper blocking cover, the rod body is made of hard material, and the pressure column is made of rubber or TPE soft rubber material.

[0010] Preferably, the pressure column includes a central body and a wrapping layer, the central body is made of hard material, and the wrapping layer is made of rubber or TPE soft rubber material.

[0011] Preferably, the height of the push rod after being inserted into the push rod mounting through hole needs to be the same as the height of the micro switch installed on the circuit board.

[0012] The utility model has the following beneficial effects: no matter the welding of the micro switch and the ejector rod, the welding can be performed at one time by using the same automated welding equipment, and there is no need to extrude and install the ejector rod by a press at a later stage, which reduces the number of assembly steps, makes the process simpler, and also improves work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1This is a schematic diagram of the separation structure of the circuit board and the two ejector rods in Example 1;

[0014] Figure 2 The structure of the top rod in Example 1 is shown in FIG. Figure 1 ;

[0015] Figure 3 The structure of the top rod in Example 1 is shown in FIG. Figure 2 ;

[0016] Figure 4 This is a schematic diagram of the structure of the metal solder pin of the patch in Example 1;

[0017] Figure 5 It is a structural reference diagram of the ejector rod in Example 2;

[0018] Figure 6 This is a cross-sectional schematic diagram of the medium-pressure column in Example 2.

[0019] Reference numerals:

[0020] Circuit board 1, ejector pin 2, ejector pin mounting through hole 3, soldering pad 4, patch metal soldering pin 5, rod body 201, mounting column 202, pressure column 203, bottom 501, welding part 502, arc surface structure 503, central body 2031, and wrapping layer 2032. DETAILED DESCRIPTION

[0021] In order to make the purpose, technical solution and advantages of the embodiments of the utility model clearer, the technical solution in the embodiments of the utility model will be clearly and completely described below in combination with the embodiments of the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0022] Example 1

[0023] See also Figure 1-4 As shown, the embodiment discloses a quick assembly structure of a push rod of an automobile switch, including a circuit board 1 and a push rod 2, wherein a push rod mounting through hole 3 is provided at each position corresponding to a key on the circuit board 1, and two welding pads 4 for welding to the push rod 2 or to a micro switch are provided on both sides of each push rod mounting through hole 3, and a patch metal welding pin 5 for welding to the welding pad 4 is provided on the push rod 2, and the patch metal welding pin 5 is welded to the corresponding welding pad 4.

[0024] Preferably, in order to further facilitate installation, the push rod 2 includes a rod body 201, and a mounting column 202 that can be inserted into both sides of the push rod mounting through hole 3 is provided at the bottom 501 of the rod body 201, and a pressure column 203 corresponding to the bottom of the blocking cover is provided above the rod body 201, and a patch metal welding needle 5 is integrally formed on both sides of the rod body 201. In this embodiment, the mounting column 202 in the push rod 2 is inserted into the push rod mounting through hole 3, and in order to ensure that the push rod 2 can not shake freely after the push rod 2 is placed, the caliber of the push rod mounting through hole 3 is consistent with the diameter of the mounting column 202, so that the mounting column 202 can be just inserted into the push rod mounting through hole 3, and once inserted, it can ensure that the bottom of the patch metal welding needle 5 on both sides is in contact with the corresponding pad 4, which is convenient for the subsequent welding of the equipment. The pressure column 203 in the push rod 2 is later It can be counteracted with the corresponding lower part of the blocking cover; in order to further improve the fixing strength, the patch metal soldering needle 5 includes a bottom 501 and a welding part 502, the bottom 501 is a parallel structure inserted into the rod body 201, the welding part 502 is perpendicular to the bottom 501, and the bottom 501 and the welding part 502 are combined to form an L-shaped structure, and the bottom 501 at the connection between the bottom 501 and the welding part 502 is an arc surface structure 503. In this embodiment, a part of the patch metal soldering needle 5 is inserted into the rod body 201 and is integrally formed with the rod body 201, which ensures that the fixing strength of the patch metal soldering needle 5 on both sides of the ejector rod 2 is stronger in the later stage, and will not fall off at will, which will affect the later welding effect on the ejector rod 2. At the same time, the bottom of the patch metal soldering needle 5 is set to an arc surface, so that the surface of the patch metal soldering needle 5 is smoother and will not damage the circuit board 1.

[0025] Preferably, in order to avoid damaging the upper plugging cover, the rod body 201 is made of hard material, and the pressure column 203 is made of rubber or TPE soft rubber material. In the above design, since the upper pressure column 203 needs to be against the bottom of the plugging cover in the later stage, in order to avoid damaging the plugging cover, the pressure column 203 is made of rubber or TPE soft rubber material as a whole, and the processing of the top rod 2 adopts an integrated molding setting. During processing, the top rod 2 adopts a two-color injection molding process. The patch metal welding needle 5 is first placed in the injection mold, and half of the top rod 2, that is, the rod body 201 and the mounting column 202, is injection molded. Then, rubber or TPE soft rubber material is selected to injection mold the pressure column 203. After the whole is demolded, a complete top rod 2 can be formed. Moreover, since the two patch metal welding needles 5 are injection molded inside the top rod 2, the overall fixing strength of the patch metal welding needles 5 is guaranteed to be stronger, and they will not fall off at will, which will affect the later welding effect on the top rod 2.

[0026] Preferably, the height of the push rod 2 after being inserted into the push rod mounting through hole 3 needs to be the same as the height of the micro switch installed on the circuit board 1 .

[0027] In summary, in this embodiment, a special ejector rod 2 is provided, and an ejector rod mounting through hole 3 is provided at each position corresponding to a key on the circuit board 1. Two pads 4 for welding with the ejector rod 2 or with a micro switch are provided on both sides of each ejector rod mounting through hole 3, and patch metal welding pins 5 for welding with the pads 4 are provided on both sides of the ejector rod 2. During assembly, according to the configuration requirements of the automobile, when the corresponding key function is required, it is only necessary to install the micro switch at the corresponding position on the circuit board 1, and the pad on the micro switch is fitted with the pad 4 on the circuit board 1 and then welded. At the same time, the function key is selected on the shell for assembly. At this time, The ejector rod mounting through hole 3 in the key function is vacant; if the corresponding key function is not needed, it is only necessary to insert the ejector rod 2 into the ejector rod mounting through hole 3 of the corresponding key position on the circuit board 1, and ensure that the patch metal welding pins 5 on both sides of the ejector rod 2 are in contact with the pads 4 on the circuit board 1 before welding. Moreover, both the welding of the micro switch and the ejector rod 2 can be performed at one time using the same automated welding equipment. In the later stage, there is no need to use a press to squeeze and install the ejector rod 2, which reduces the steps of the assembly process, makes the process simpler, and also improves work efficiency. After the ejector rod 2 is installed, a plug cover can be selected on the outer shell for assembly.

[0028] Example 2

[0029] See also Figure 5-6 As shown, the present embodiment discloses a quick assembly structure of a push rod of an automobile switch. Preferably, the pressure column 203 includes a center body 2031 and a wrapping layer 2032. The center body 2031 is made of hard material, and the wrapping layer 2032 is made of rubber or TPE soft rubber material. Since the upper pressure column 203 needs to be against the bottom of the blocking cover in a later stage, in order to avoid damaging the blocking cover and ensure the overall hardness, the upper pressure column 203 is made of hard material inside and soft material outside.

[0030] The above are only preferred embodiments of the present invention and do not limit the present invention. Any modification to the technical solutions recorded in the aforementioned embodiments and any equivalent replacement of some of the technical features therein, any modification, equivalent replacement, and improvement made are all within the protection scope of the present invention.

Claims

1. A push rod quick assembly structure for an automobile switch, comprising a circuit board (1) and a push rod (2), characterized in that: A push rod mounting through hole (3) is provided at each position corresponding to a key on the circuit board (1), and two soldering pads (4) for soldering to the push rod (2) or to a micro switch are provided on both sides of each push rod mounting through hole (3). A patch metal soldering pin (5) for soldering to the soldering pad (4) is provided on the push rod (2), and the patch metal soldering pin (5) is soldered to the corresponding soldering pad (4).

2. The quick assembly structure of a push rod of an automobile switch according to claim 1, characterized in that: The push rod (2) comprises a rod body (201), a mounting column (202) capable of being inserted into both sides of the push rod mounting through hole (3) is arranged at the bottom (501) of the rod body (201), a pressure column (203) corresponding to the bottom of the blocking cover is arranged above the rod body (201), and a patch metal welding pin (5) is integrally formed on both sides of the rod body (201).

3. The quick assembly structure of a push rod of an automobile switch according to claim 2, characterized in that: The patch metal soldering pin (5) comprises a bottom (501) and a soldering portion (502), wherein the bottom (501) is a parallel structure inserted into the rod body (201), the soldering portion (502) is perpendicular to the bottom (501), and the bottom (501) and the soldering portion (502) are combined to form an L-shaped structure, and the bottom (501) at the connection between the bottom (501) and the soldering portion (502) is a curved surface structure (503).

4. The quick assembly structure of a push rod of an automobile switch according to claim 2 or 3, characterized in that: The rod body (201) is made of hard material, and the pressure column (203) is made of rubber or TPE soft rubber material.

5. The quick assembly structure of a push rod of an automobile switch according to claim 2 or 3, characterized in that: The pressure column (203) comprises a central body (2031) and a wrapping layer (2032), wherein the central body (2031) is made of a hard material, and the wrapping layer (2032) is made of rubber or TPE soft rubber material.

6. The quick assembly structure of a push rod of an automobile switch according to claim 1, characterized in that: The height of the push rod (2) after being inserted into the push rod mounting through hole (3) needs to be the same as the height of the micro switch mounted on the circuit board (1).

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