Waist support control switch of automobile seat

Abstract

The utility model discloses an automobile seat waist support control switch comprising a control wire harness, one end of the control wire harness is fixedly provided with a button support, the outer wall of the control wire harness is slidably provided with a housing, the inner wall of the housing is fixedly provided with a connecting sleeve, the inner wall of the housing is rotatably provided with a plurality of self-tapping screws in a penetrating manner, and the self-tapping screws are connected with the button support. A mounting nut is rotatably mounted on the outer wall of the connecting sleeve, a PPT rubber-coated fixing ring is slidably mounted on the outer wall of the shell, and a plurality of threaded holes matched with the self-tapping screws are formed in the inner wall of the PPT rubber-coated fixing ring. The PCB assembly, the touch switch, the resistor and other assemblies are arranged, the control assembly is arranged on the PCB assembly in a centralized mode, the size of the control switch can be greatly reduced, the structure and the wiring harness are simple, cost is reduced, only switching signals are provided, the service life of a switch contact is long, resistance values are different after switch keys are switched on, and the switch keys are not damaged. Multiple protection functions can be achieved through control, and safety and reliability are achieved.

Description

Technical Field

[0001] This utility model relates to the field of automotive parts technology, and in particular to a lumbar support control switch for automotive seats. Background Technology

[0002] A car seat lumbar support is a device used to relieve lower back fatigue during driving. It provides lumbar support by installing a movable support pad in the lumbar region of the seat, helping the driver maintain a correct posture and reducing lower back fatigue and discomfort.

[0003] The lumbar support can be adjusted in two ways: electric and manual. Electric adjustment is more convenient and faster. In the existing technology, most switches use direct drive motors and air pumps, which have a large design size, large current passing through the contacts, high technical requirements for the switch contacts, a large number of output terminals, and require a wire connection for each control direction, resulting in high wiring costs and insufficient practicality. Therefore, it is necessary to redesign the car seat lumbar support control switch to address the above issues. Utility Model Content

[0004] The purpose of this utility model is to address the shortcomings of existing technologies by proposing a car seat lumbar support control switch.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A car seat lumbar support control switch includes a control wiring harness. A button bracket is fixedly mounted at one end of the control wiring harness. A housing is slidably mounted on the outer wall of the control wiring harness. A connecting sleeve is fixedly mounted on the inner wall of the housing. Multiple self-tapping screws are rotatably mounted through the inner wall of the housing. A mounting nut is rotatably mounted on the outer wall of the connecting sleeve. A PPT-coated retaining ring is slidably mounted on the outer wall of the housing. Multiple threaded holes for cooperating with the self-tapping screws are formed on the inner wall of the PPT-coated retaining ring. A PCB assembly is fixedly mounted on the outer wall of the PPT-coated retaining ring. A function button that mates with the PCB assembly is slidably mounted on the outer wall of the PPT-coated retaining ring. A wiring harness connector assembly is fixedly mounted at the other end of the control wiring harness.

[0007] Preferably, a gasket is slidably mounted on the inner wall of the housing, and the gasket is made of rubber.

[0008] Preferably, the outer wall of the connecting sleeve is provided with an external thread, and the mounting nut is provided with an internal thread that engages with the external thread.

[0009] Preferably, multiple limiting plates are fixedly installed on the inner wall of the PPT-coated fixing ring, and the outer wall of the housing has a limiting opening that cooperates with the multiple limiting plates.

[0010] Preferably, the outer wall of the PCB assembly is soldered with a plurality of tactile switches and a plurality of resistors, each of the tactile switches having a different resistance value after being turned on.

[0011] Preferably, the inner wall of the function button is fixedly installed with multiple buckles, and the inner wall of the PPT rubber-coated fixing ring is provided with a snap-fit ​​opening that cooperates with the multiple buckles.

[0012] The beneficial effects of this utility model are:

[0013] 1. By setting up PCB components, tactile switches, and resistors, the control components are centrally located on the PCB component, which greatly reduces the size of the control switch, simplifies the structure and wiring harness, reduces costs, provides only the switch signal, has a long contact life, and each switch button has a different resistance value after being turned on, which can realize multiple protection functions through control, making it safe and reliable.

[0014] 2. By setting up components such as connecting sleeves, mounting nuts, and washers, the mating of external and internal threads allows the mounting nuts to be rotated and locked onto the outer wall of the connecting sleeve, while the washers are squeezed to increase friction, prevent loosening, and improve the reliability of the connection. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of the car seat lumbar support control switch proposed in this utility model;

[0016] Figure 2 for Figure 1 A schematic diagram of the exploded structure;

[0017] Figure 3 for Figure 2 A side view structural diagram.

[0018] In the diagram: 1 Control harness, 2 Button bracket, 3 Housing, 4 Connecting sleeve, 5 Washer, 6 Self-tapping screw, 7 Mounting nut, 8 PPT coated retaining ring, 9 Limiting plate, 10 PCB assembly, 11 Function button, 12 Clip, 13 Harness connector assembly. Detailed Implementation

[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0020] Reference Figure 1-3The car seat lumbar support control switch includes a control harness 1, one end of which is fixedly mounted with a button bracket 2. A housing 3 is slidably mounted on the outer wall of the control harness 1. A connecting sleeve 4 is fixedly mounted on the inner wall of the housing 3. A washer 5 is slidably mounted on the inner wall of the housing 3. The washer 5 is made of rubber. Rubber has good elasticity and softness, which allows it to form a tighter contact between the surface and the object, thereby increasing friction and improving the coefficient of friction. Multiple self-tapping screws 6 are rotatably mounted through the inner wall of the housing 3. An installation nut 7 is rotatably mounted on the outer wall of the connecting sleeve 4. The outer wall of the connecting sleeve 4 has external threads, and the installation nut 7 has internal threads that lock with the external threads. A PPT-coated retaining ring 8 is slidably mounted on the outer wall of the housing 3. The inner wall of the PPT-coated retaining ring 8 has multiple threaded holes that mate with the self-tapping screws 6. Multiple limiting plates 9 are fixedly mounted on the inner wall of the PPT-coated retaining ring 8. The outer wall of the housing 3 has limiting openings that mate with the multiple limiting plates 9.

[0021] A PCB assembly 10 is fixedly installed on the outer wall of the PPT-coated retaining ring 8. Multiple tactile switches and multiple resistors are soldered on the outer wall of the PCB assembly 10. Each tactile switch has a different resistance value after being turned on. A function button 11 that cooperates with the PCB assembly 10 is slidably installed on the outer wall of the PPT-coated retaining ring 8. Multiple clips 12 are fixedly installed on the inner wall of the function button 11. The inner wall of the PPT-coated retaining ring 8 has a snap-fit ​​opening that cooperates with the multiple clips 12. A wire harness connector assembly 13 is fixedly installed on the other end of the control wire harness 1.

[0022] When using this utility model, the housing 3 can be slidably installed on the outer wall of the control harness 1. Then, the PPT-coated fixing ring 8 can be slidably connected to the outer wall of the housing 3. Next, the washer 5 can be slidably installed on the inner wall of the housing 3, so that multiple limiting plates 9 are locked inside the corresponding limiting openings. At this time, multiple self-tapping screws 6 can be aligned with multiple threaded holes, and the multiple self-tapping screws 6 can pierce the washer 5. Tighten the self-tapping screws 6 to make them penetrate into the threaded holes, thereby realizing the fixed connection between the PPT-coated fixing ring 8 and the housing 3. When installing the mounting nut 7, it can be rotated and locked on the outer wall of the connecting sleeve 4 through the cooperation of the external thread and the internal thread, and the washer 5 is squeezed to increase the friction, prevent loosening, and improve the reliability of the connection.

[0023] When connecting and installing the function button 11 to the PPT-coated retaining ring 8, multiple clips 12 can be inserted into the PPT-coated retaining ring 8 and locked with multiple snap-fit ​​openings. This achieves the installation and fixation of the function button 11. Four resistors are connected in series on the PCB assembly 10 of the switch. Each switch button has a different resistance value after being turned on. The controller makes corresponding instructions to drive the motor according to different voltage signals. The entire switch only needs two wires to realize four operation instructions for the electrodes, which greatly reduces the cost of the switch itself. When using the control switch, it does not directly drive the motor, but only provides a signal to drive it through the controller. The requirements for the internal core switch contacts are low, and the internal switch is a micro-current micro switch with a small size, which is convenient for placement. This makes the size of the entire control switch much smaller than that of traditional direct-drive switches, which facilitates the placement of the switch. It can be matched with the controller and can realize more protections through program settings, such as reverse connection protection, timed automatic stop, overcurrent and overvoltage protection, etc.

[0024] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A car seat lumbar support control switch, including a control wiring harness (1), characterized in that, One end of the control harness (1) is fixedly mounted with a button bracket (2). A housing (3) is slidably mounted on the outer wall of the control harness (1). A connecting sleeve (4) is fixedly mounted on the inner wall of the housing (3). Multiple self-tapping screws (6) are rotatably mounted through the inner wall of the housing (3). An installation nut (7) is rotatably mounted on the outer wall of the connecting sleeve (4). A PPT-coated retaining ring (8) is slidably mounted on the outer wall of the housing (3). Multiple threaded holes that mate with the self-tapping screws (6) are opened on the inner wall of the PPT-coated retaining ring (8). A PCB assembly (10) is fixedly mounted on the outer wall of the PPT-coated retaining ring (8). A function button (11) that mates with the PCB assembly (10) is slidably mounted on the outer wall of the PPT-coated retaining ring (8). A harness connector assembly (13) is fixedly mounted on the other end of the control harness (1).

2. The automotive seat lumbar support control switch according to claim 1, characterized in that, A gasket (5) is slidably installed on the inner wall of the housing (3), and the gasket (5) is made of rubber.

3. The automotive seat lumbar support control switch according to claim 2, characterized in that, The outer wall of the connecting sleeve (4) is provided with an external thread, and the mounting nut (7) is provided with an internal thread that engages with the external thread.

4. The automotive seat lumbar support control switch according to claim 3, characterized in that, The inner wall of the PPT-coated fixing ring (8) is fixedly installed with multiple limiting plates (9), and the outer wall of the housing (3) is provided with limiting openings that cooperate with the multiple limiting plates (9).

5. The automotive seat lumbar support control switch according to claim 4, characterized in that, The outer wall of the PCB assembly (10) is welded with multiple tactile switches and multiple resistors, and each tactile switch has a different resistance value after being turned on.

6. The automotive seat lumbar support control switch according to claim 5, characterized in that, The inner wall of the function button (11) is fixedly installed with multiple buckles (12), and the inner wall of the PPT rubber-coated fixing ring (8) is provided with a snap-fit ​​opening that cooperates with the multiple buckles (12).

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