A durability test device for an electric seat

Abstract

The utility model discloses a kind of electric seat endurance test device, including seat body, the bottom of the seat body is equipped with guide rail, the guide rail is fixed on the car body floor, the inside of the guide rail is equipped with longitudinal adjustment circulation component that drives seat body to move back and forth, the seat body cushion adopts four-link structure control to lift and adjust circulation.This utility model is controlled by single ECU controller with three groups of connecting joints, that is, the centralized control of longitudinal adjustment, lifting adjustment, backrest rotation three groups of adjusting components can be realized, without independent control equipment for different adjustment functions, the number of test required equipment is greatly reduced, equipment connection structure is simplified, equipment investment cost and connection complexity are reduced;While ECU controller built-in power supply chip can be directly adapted to 12V external power supply, without additional complex power supply system, further reduce equipment investment, and not by special test room site limit.

Description

Technical Field

[0001] This utility model relates to the technical field of automotive parts testing equipment, specifically an electric seat durability testing device. Background Technology

[0002] As a core component of automotive interiors, the lifespan and reliability of electric seats directly impact the user's driving experience and vehicle safety. In the research and development and production of electric seats, durability testing is a crucial step in verifying their performance. This testing simulates various adjustment actions of the electric seat during long-term user use, assessing the fatigue strength and stability of core components such as the seat motor, transmission mechanism, and frame structure.

[0003] Currently, durability testing generally requires the cooperation of multiple specialized equipment such as durability testing machines, infrared sensing devices, and seat button adjustment devices. This results in a large number of required equipment and significant investment. It usually requires the establishment of a dedicated laboratory, and the pre-test preparation is relatively complex.

[0004] Therefore, it is necessary to provide an electric seat durability testing device to solve the above-mentioned technical problems. Utility Model Content

[0005] The purpose of this utility model is to provide an electric seat durability testing device to solve the problems existing in the background technology. The technical solution of this utility model provides a solution that is significantly different from the existing technology, which is too simplistic.

[0006] To achieve the above objectives, this utility model provides the following technical solution: an electric seat durability testing device, comprising a seat body, a guide rail installed at the bottom of the seat body, the guide rail being fixed to the vehicle floor, a longitudinal adjustment and circulation assembly for driving the seat body to move back and forth installed inside the guide rail, the seat cushion of the seat body adopting a four-bar linkage structure to control the lifting and adjusting circulation, the backrest of the seat body being controlled to flip back and forth by a drive structure, and a testing device being detachably connected to the seat body.

[0007] Preferably, the test equipment includes an ECU controller, the connection end of which is connected to a connector via three sets of connecting wires, and the other end of the ECU controller is connected to an external power supply via a wire.

[0008] Preferably, the three sets of connecting joints are respectively connected to the output ends of the longitudinal adjustment circulation assembly, the four-bar linkage structure, and the drive structure.

[0009] Preferably, the voltage of the external power supply is 12V, and the ECU controller has a built-in microcontroller and power chip.

[0010] Any aspects of this utility model not described in detail are well-known technologies to those skilled in the art.

[0011] Compared with the prior art, the beneficial effects of this utility model are: This invention achieves centralized control of three adjustment components—longitudinal adjustment, height adjustment, and backrest rotation—through a single ECU controller paired with three sets of connectors. This eliminates the need for separate control devices for different adjustment functions, significantly reducing the number of devices required for testing, simplifying the equipment connection structure, and lowering equipment investment costs and connection complexity. Furthermore, the ECU controller's built-in power chip can directly adapt to a 12V external power supply, eliminating the need for an additional complex power supply system, further reducing equipment investment, and is not limited by dedicated laboratory space. Attached Figure Description

[0012] Figure 1 This is a perspective view of the seat body of this utility model; Figure 2 This is a three-dimensional structural diagram of the present invention, showing the ECU controller separated from the seat body. Figure 3 This is a schematic diagram of the connection between the ECU controller of this utility model and the external power supply; Figure 4 This is the circuit control diagram for the durability test of the electric seat of this utility model.

[0013] In the diagram: 1. Seat body; 2. Guide rail; 3. Longitudinal adjustment circulation assembly; 4. Four-bar linkage structure; 5. Drive structure; 6. ECU controller; 7. Connecting connector; 8. External power supply. Detailed Implementation

[0014] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0015] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model 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. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. In the description of this utility model, it should be noted that unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "setting" 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; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances. The embodiments of this utility model will be described below based on its overall structure.

[0016] Please see Figure 1-4 An electric seat durability testing device includes a seat body 1, a guide rail 2 mounted on the bottom of the seat body 1, the guide rail 2 being fixed to the vehicle floor, and a longitudinal adjustment circulation assembly 3 installed inside the guide rail 2 to drive the seat body 1 to move back and forth. One round trip of the seat body 1 along the guide rail 2 constitutes one cycle. A threaded screw can be installed inside the guide rail 2, and a threaded block threadedly connected to the screw is connected to the bottom of the seat body 1. The test begins by controlling the start and stop of the motor driving the screw. The longitudinal adjustment is achieved by moving the seat back and forth along a slide rail under the seat cushion. The seat cushion of the seat body 1 adopts a four-bar linkage structure 4 to control the lifting and adjustment cycle. The seat cushion of the seat body 1 is adjusted from the lowest position to the highest position and then back to the lowest position as one cycle. The lifting and adjustment is achieved by the mutual meshing of the height adjustment motor and the toothed plate on the seat cushion to adjust the seat cushion frame up and down. The backrest of the seat body 1 is controlled by the drive structure 5 to flip back and forth. The backrest moves from the last position to the foremost position and then from the foremost position to the last position as one cycle. The backrest rotation is achieved by the backrest frame rotating back and forth along the axis of the backrest angle adjuster. The seat body 1 is disassembled and connected to the test equipment.

[0017] like Figure 1-4 As shown, the test equipment includes an ECU controller 6. The connection end of the ECU controller 6 is connected to a connector 7 via three sets of connecting wires. The other end of the ECU controller 6 is connected to an external power supply 8 via a wire. The external power supply 8 directly supplies power to the ECU controller 6, eliminating the need to build an additional complex power supply system, thus reducing equipment investment costs and test site limitations.

[0018] like Figure 1-4 As shown, the three sets of connectors 7 are respectively connected to the output ends of the longitudinal adjustment cycle assembly 3, the four-bar linkage structure 4, and the drive structure 5. The ECU controller is connected to the longitudinal adjustment cycle assembly 3, the four-bar linkage structure 4, and the drive structure 5 one by one through the three sets of connectors 7, so as to realize the precise control of multiple adjustment components by a single controller. There is no need to configure independent control devices for different adjustment functions, which greatly reduces the number of devices and connection complexity.

[0019] like Figure 1-4 As shown, the voltage of the external power supply 8 is 12V, and the ECU controller 6 has a built-in microcontroller and power chip. The power chip converts the external power supply 8 into a voltage that is compatible with the working voltage of the microcontroller. The microcontroller drives the controller to control the direction of the motor's movement by collecting the motor's current signal or a combination of current and Hall signal.

[0020] Working principle: During operation, when conducting the electric seat durability test, the external 12V power supply 8 is first connected to the ECU controller 6. The power chip built into the ECU controller 6 will convert the 12V external power supply into the working voltage of the microcontroller to power the microcontroller. Then, through three sets of connectors 7, the ECU controller 6 is connected to the output terminals of the longitudinal adjustment cycle assembly 3, the four-bar linkage structure 4 and the drive structure 5 respectively. After the test is started, the ECU controller 6 issues control commands according to the preset durability test program. The microcontroller collects the current signal of the motor in each adjustment component, or the combination signal of current and Hall signal, and drives the controller to control the movement direction of the corresponding motor. For the longitudinal adjustment cycle component 3, the motor of the drive screw is controlled to start and stop, which drives the threaded block at the bottom of the seat body 1, which is threaded to the screw, to move, so that the seat body 1 moves back and forth along the guide rail 2 for a full stroke, completing the longitudinal adjustment cycle. For the four-bar structure 4, the height adjustment motor on the seat cushion is controlled to operate. Through the mutual meshing of the motor and the toothed plate, the four-bar structure is driven to move, so that the seat cushion is adjusted from the lowest position to the highest position and then back to the lowest position, completing the lifting adjustment cycle. For the drive structure 5, the corresponding motor is controlled to operate, which drives the backrest frame to rotate along the axis of the backrest angle adjuster, so that the backrest moves from the last position to the foremost position and then back to the last position, completing the backrest rotation adjustment cycle. The entire process realizes the automatic operation of the electric seat durability test.

[0021] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. An electric seat durability testing device, comprising a seat body (1), characterized in that: The bottom of the seat body (1) is equipped with a guide rail (2), which is fixed to the vehicle floor. The guide rail (2) is equipped with a longitudinal adjustment cycle assembly (3) that drives the seat body (1) to move back and forth. The seat cushion of the seat body (1) adopts a four-bar structure (4) to control the lifting and adjusting cycle. The backrest of the seat body (1) is controlled to flip back and forth by a drive structure (5). The seat body (1) is detachably connected to test equipment.

2. The electric seat durability testing device according to claim 1, characterized in that: The test equipment includes an ECU controller (6), the connection end of which is connected to a connector (7) via three sets of connecting wires, and the other end of the ECU controller (6) is connected to an external power supply (8) via a wire.

3. The electric seat durability testing device according to claim 2, characterized in that: The three sets of connecting joints (7) are respectively connected to the output ends of the longitudinal adjustment circulation assembly (3), the four-bar linkage structure (4) and the drive structure (5).

4. The electric seat durability testing device according to claim 2, characterized in that: The external power supply (8) has a voltage of 12V, and the ECU controller (6) has a built-in microcontroller and power chip.

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