A test device for ECU domain control of automotive seats

Abstract

This invention discloses an automotive seat ECU domain control testing device, comprising a frame, a pin plate assembly, a clamping assembly, and a clamping component. The pin plate assembly is fixedly connected to the frame. The testing component is detachably mounted on the frame and positioned above the pin plate assembly. The clamping assembly is mounted on the frame and used to press the testing component onto the pin plate assembly. The testing component includes a fixing member, within which a carrier plate for placing the product is fixedly connected. Air tightness testing components that mate with the product's air nozzles are fixedly connected to both sides of the fixing member. A connecting component that mates with the product's interface is fixedly connected to the fixing member. This application effectively solves the problems of cumbersome changeover and low efficiency in existing equipment by providing a quickly detachable testing component and utilizing the plug-and-play electrical connection between the probes on the pin plate assembly and the testing component.

Description

Technical Field

[0001] This invention relates to the field of automotive seat ECU domain control testing technology, specifically to an automotive seat ECU domain control testing device. Background Technology

[0002] As people's demands for car seat comfort gradually increase, the number of electrical components also increases. ECU modules can centrally control these electrical components. ECU modules can drive and adjust functions such as pneumatic massage, position adjustment, heating, and ventilation in car seats. To ensure the reliability and safety of ECU modules, each ECU must undergo rigorous airtightness and electrical performance testing before assembly or during production—this is known as automotive seat ECU domain control testing.

[0003] Currently, the industry mostly uses integrated dedicated testing equipment for testing ECU modules. The testing fixture is usually rigidly connected to the test host through a large number of wires and air pipes. When different models of seat ECU modules need to be tested, the entire fixture often needs to be disassembled, replaced, and rewired, reconnected to the air circuit and calibrated. The operation is cumbersome, resulting in excessively long equipment changeover preparation time and low testing efficiency. Summary of the Invention

[0004] To overcome the shortcomings of the prior art, this invention provides an automotive seat ECU domain control testing device. The technical problem to be solved is that in the prior art, when different models of seat ECU modules need to be tested, the entire fixture often needs to be disassembled and replaced, and the wiring, air circuit and calibration need to be reconnected. The operation is cumbersome, resulting in excessively long equipment changeover preparation time and low testing efficiency.

[0005] To solve the above-mentioned technical problems, the present invention provides the following technical solution: an automotive seat ECU domain control testing device, comprising:

[0006] frame;

[0007] The needle plate assembly is fixedly connected to the frame;

[0008] The test assembly is detachably mounted on the rack and positioned above the needle plate assembly;

[0009] A clamping assembly, mounted on the frame, is used to press the test assembly onto the needle plate assembly;

[0010] The test component includes a fixing member, a carrier plate for placing the product is fixedly connected inside the fixing member, air tightness testing components that mate with the air nozzle of the product are fixedly connected to both sides of the fixing member, and a connecting component that mates with the interface of the product is fixedly connected to the fixing member.

[0011] The probe plate assembly is provided with multiple probes, and when the test assembly is installed on the rack, the probes are electrically connected to the test assembly.

[0012] As a preferred embodiment of the automotive seat ECU domain control testing equipment of the present invention, the needle plate assembly includes a fixing plate, the fixing plate is fixedly connected to the frame, the bottom of the middle part of the fixing plate is fixedly connected to a mounting plate, the top of the mounting plate is fixedly connected to a needle plate, and multiple probes are equidistantly arranged on the needle plate.

[0013] As a preferred embodiment of the automotive seat ECU domain control testing equipment of the present invention, positioning blocks are fixedly connected to the four corners of the top of the fixing plate.

[0014] As a preferred embodiment of the automotive seat ECU domain control test equipment of the present invention, the fixing component includes a housing, the bottom of which is fixedly connected to a base plate, and the base plate is placed between four positioning blocks;

[0015] The carrier plate is fixedly connected to the box body;

[0016] An interface plate is embedded in the center of the bottom of the base plate. The interface plate has multiple connection holes, and the probe is inserted into the connection holes.

[0017] As a preferred embodiment of the automotive seat ECU domain control test equipment of the present invention, the top two sides of the fixing plate are fixedly connected with positioning pins, and the bottom two sides of the base plate are provided with positioning holes. The positioning pins and positioning holes are used for positioning and installation of test components.

[0018] As a preferred embodiment of the automotive seat ECU domain control test equipment of the present invention, the airtightness testing component includes a first airtightness testing component and / or a second airtightness testing component;

[0019] The second airtightness testing component includes a support plate, which is fixedly connected to the housing. A first cylinder is fixedly connected to the support plate, and a first push plate is fixedly connected to the output end of the first cylinder. Multiple connecting pipes are fixedly connected to the first push plate. One end of each connecting pipe is fixedly connected to an air nozzle, and the other end of each connecting pipe is connected to an external air source. The first cylinder is used to drive the first push plate to move so that the air nozzle aligns with the air nozzle opening of the product.

[0020] In a preferred embodiment of the automotive seat ECU domain control testing equipment of the present invention, the connecting component includes a second cylinder, which is fixedly connected to the housing. A second push plate is fixedly connected to the output end of the second cylinder. A connector is fixedly connected to the second push plate. The connector is electrically connected to the interface board through a wire. The second cylinder is used to drive the second push plate to move so that the connector docks with the interface of the product.

[0021] As a preferred embodiment of the automotive seat ECU domain control testing equipment of the present invention, the connecting component further includes a bracket, a slider, and a slide rail. The bracket is fixedly connected to the second push plate, the slider is fixedly connected to the top of the bracket, the slide rail is fixedly connected to the housing, and the slider is slidably connected to the slide rail.

[0022] As a preferred embodiment of the automotive seat ECU domain control testing equipment of the present invention, the testing component further includes a clamping component, the clamping component includes a fourth cylinder, the bottom of the fourth cylinder is fixedly connected to the top of the housing, the output end of the fourth cylinder is fixedly connected to a connecting frame, one end of the connecting frame is fixedly connected to a clamping plate, and the fourth cylinder is used to drive the connecting frame to move so that the clamping plate is pressed against the upper surface of the product.

[0023] In a preferred embodiment of the automotive seat ECU domain control testing equipment of the present invention, the clamping assembly includes a third cylinder, which is fixedly connected to the frame. A lower pressure plate is fixedly connected to the output end of the third cylinder, a support rod is fixedly connected to the lower pressure plate, and a lower pressure head is fixedly connected to the bottom of the support rod.

[0024] By employing the above technical solution, the present invention provides an automotive seat ECU domain control testing device, which has at least the following beneficial effects:

[0025] 1. This application effectively solves the problems of cumbersome and inefficient equipment changeover in the prior art by setting up a test component that can be quickly disassembled and installed, and by using the probes on the needle plate assembly to connect to the test component in a plug-and-play manner. When different models of products need to be tested, only the test component integrating the corresponding carrier plate, airtightness detection component and connecting components needs to be replaced as a whole, without the need for complicated disassembly and reassembly of circuits and air circuits, thus shortening the changeover time and improving the testing efficiency.

[0026] 2. By setting up airtightness testing components and connecting components, the first cylinder can drive the first push plate to move so that the air nozzle aligns with the air nozzle of the product, while the second cylinder can drive the second push plate to move so that the connector aligns with the interface of the product. This automated mating avoids the errors and inconsistencies that exist in traditional manual mating and improves the reliability of the test. Attached Figure Description

[0027] The accompanying drawings, which are provided to further illustrate the invention, constitute a part of this application:

[0028] Figure 1 This is a schematic diagram of the structure of the present invention.

[0029] Figure 2 This is a schematic diagram of the needle plate and probe structure in this invention.

[0030] Figure 3 This is a schematic diagram of the test component structure in this invention.

[0031] Figure 4 This is a schematic diagram of the fastener structure in this invention.

[0032] Figure 5 This is a schematic diagram of the structure of the second airtightness detection element in this invention.

[0033] Figure 6 This is a schematic diagram of the connecting component structure in this invention.

[0034] Figure 7 This is a schematic diagram of the clamping assembly structure in this invention.

[0035] Reference numerals: 10, frame; 20, needle plate assembly; 21, fixing plate; 22, mounting plate; 23, needle plate; 24, probe; 25, positioning pin; 26, positioning block; 30, test assembly; 31, fixing component; 311, housing; 312, base plate; 313, interface plate; 314, positioning hole; 32, carrier plate; 33, clamping component; 331, fourth cylinder; 332, connecting frame; 333, clamping plate; 34, first airtightness tester. Test piece; 35. Second airtightness test piece; 351. Support plate; 352. First cylinder; 353. First push plate; 354. Connecting pipe; 355. Air nozzle; 36. Connecting assembly; 361. Second cylinder; 362. Second push plate; 363. Connector; 364. Bracket; 365. Slider; 366. Slide rail; 40. Clamping assembly; 41. Third cylinder; 42. Lower pressure plate; 43. Support rod; 44. Lower pressure head; 50. Product. Detailed Implementation

[0036] To make the above-mentioned objects, features and advantages of the present invention more apparent and understandable, the specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

[0037] like Figure 1 and Figure 3 As shown, an automotive seat ECU domain control test device includes a frame 10, a pin plate assembly 20, a test assembly 30, and a clamping assembly 40, with the pin plate assembly 20 fixedly connected to the frame 10.

[0038] The test assembly 30 is detachably mounted on the frame 10 and located above the needle plate assembly 20;

[0039] The clamping assembly 40 is mounted on the frame 10 and is used to press the test assembly 30 onto the needle plate assembly 20.

[0040] The test component 30 includes a fastener 31, a carrier plate 32 for placing the product 50 is fixedly connected inside the fastener 31, air tightness testing components that are connected to the air nozzle of the product 50 are fixedly connected to both sides of the fastener 31, and a connection component 36 that is connected to the interface of the product 50 is fixedly connected to the fastener 31.

[0041] The probe plate assembly 20 is provided with multiple probes 24. When the test assembly 30 is installed on the frame 10, the probes 24 are electrically connected to the test assembly 30.

[0042] This application effectively solves the problems of cumbersome equipment changeover and low efficiency in the prior art by setting up a test component 30 that can be quickly disassembled and installed, and by using the probes 24 on the needle plate assembly 20 to connect to the test component 30 in a plug-and-play manner. When it is necessary to test different models of products 50, it is only necessary to replace the entire test component 30, which integrates the corresponding carrier plate 32, airtightness detection component and connecting component 36, without the need for complicated disassembly and reassembly of circuits and air circuits, thus shortening the changeover time and improving the testing efficiency.

[0043] like Figure 1 and Figure 2 As shown, the needle plate assembly 20 includes a fixing plate 21, which is fixedly connected to the frame 10. A mounting plate 22 is fixedly connected to the bottom of the middle part of the fixing plate 21, and a needle plate 23 is fixedly connected to the top of the mounting plate 22. Multiple probes 24 are equidistantly arranged on the needle plate 23. The tips of these probes 24 extend upward and make electrical contact with the test assembly 30 above, so as to facilitate the transmission of test signals, power, etc. of the test host to the circuit inside the test assembly 30 through the probes 24, and then apply them to the product 50.

[0044] like Figure 4 As shown, the fastener 31 includes a housing 311, a bottom plate 312 is fixedly connected to the bottom of the housing 311, and positioning blocks 26 are fixedly connected to the four corners of the top of the fixing plate 21. The bottom plate 312 is placed between the four positioning blocks 26.

[0045] The carrier plate 32 is fixedly connected inside the housing 311;

[0046] An interface board 313 is embedded in the middle of the bottom of the base plate 312. The interface board 313 has multiple connection holes, and the probe 24 is inserted into the connection holes.

[0047] When the test assembly 30 is pressed down, the probes 24 on the pin plate assembly 20 are inserted into the connection holes of the interface board 313, achieving physical connection and electrical conduction. At this time, the test signal from the test host enters the interface board 313 through the probes 24, and is then distributed by the circuitry on the interface board 313 to the connector 363 of the connection assembly 36, and finally applied to the product 50. Simultaneously, the interface board 313 also collects the feedback signal from the product 50 and transmits it back to the test host.

[0048] like Figure 1 and Figure 4 As shown, positioning pins 25 are fixedly connected to both sides of the top of the fixing plate 21, and positioning holes 314 are provided on both sides of the bottom of the base plate 312. The positioning pins 25 and the positioning holes 314 are used for positioning and installing the test assembly 30. When the positioning pins 25 and the positioning holes 314 are fully engaged, each connection hole on the interface plate 313 at the bottom of the base plate 312 corresponds to each probe 24 on the needle plate 23, ensuring that the probe 24 can be accurately inserted into the connection hole and achieve a reliable electrical connection.

[0049] like Figure 3 and Figure 5 As shown, the airtightness testing element includes a first airtightness testing element 34 and / or a second airtightness testing element 35;

[0050] The second airtightness testing component 35 includes a support plate 351, which is fixedly connected to the housing 311. A first cylinder 352 is fixedly connected to the support plate 351. A first push plate 353 is fixedly connected to the output end of the first cylinder 352. A plurality of connecting pipes 354 are fixedly connected to the first push plate 353. One end of the connecting pipe 354 is fixedly connected to an air nozzle 355, and the other end of the connecting pipe 354 is connected to an external air source. The first cylinder 352 is used to drive the first push plate 353 to move so that the air nozzle 355 aligns with the air nozzle of the product 50.

[0051] When an airtightness test is required, the first cylinder 352 operates, driving the first push plate 353 and its nozzle 355 to move horizontally towards the product 50. The nozzle 355 is inserted into the corresponding nozzle opening on the product 50, and a sealing cavity is formed by the sealing ring at the end of the nozzle 355. An external airtightness tester injects gas at a certain pressure into the internal pipeline of the product 50 through the connecting pipe 354 and the nozzle 355, and judges whether the airtightness of the product is qualified by monitoring the pressure change. After the test is completed, the first cylinder 352 retracts, causing the nozzle 355 to separate from the product 50.

[0052] like Figure 3 and Figure 6 As shown, the connecting assembly 36 includes a second cylinder 361, which is fixedly connected inside the housing 311. A second push plate 362 is fixedly connected to the output end of the second cylinder 361. A connector 363 is fixedly connected to the second push plate 362. The connector 363 is electrically connected to the interface plate 313 through a wire. The second cylinder 361 is used to drive the second push plate 362 to move so that the connector 363 docks with the interface of the product 50.

[0053] The connecting assembly 36 also includes a bracket 364, a slider 365, and a slide rail 366. The bracket 364 is fixedly connected to the second push plate 362, the slider 365 is fixedly connected to the top of the bracket 364, the slide rail 366 is fixedly connected to the housing 311, and the slider 365 is slidably connected to the slide rail 366.

[0054] When electrical performance testing is required, the second cylinder 361 moves the second push plate 362 and its connector 363 horizontally toward the product 50. The connector 363 aligns and engages with the interface on the product 50, establishing an electrical connection. Subsequently, the test host completes the electrical test by applying signals to the product 50 and acquiring response signals. After the test, the second cylinder 361 retracts, separating the connector 363 from the product 50.

[0055] like Figure 3 As shown, the test assembly 30 also includes a clamping component 33, which includes a fourth cylinder 331. The bottom of the fourth cylinder 331 is fixedly connected to the top of the housing 311, and a connecting frame 332 is fixedly connected to the output end of the fourth cylinder 331. A clamping plate 333 is fixedly connected to one end of the connecting frame 332. After the product 50 is placed into the positioning slot of the carrier plate 32, the fourth cylinder 331 drives the connecting frame 332 to move, causing the clamping plate 333 to press against the upper surface of the product 50, thus fixing the product 50 onto the carrier plate 32.

[0056] like Figure 1 and Figure 7 As shown, the clamping assembly 40 includes a third cylinder 41, which is fixedly connected to the frame 10. A lower pressure plate 42 is fixedly connected to the output end of the third cylinder 41. A support rod 43 is fixedly connected to the lower pressure plate 42, and a lower pressure head 44 is fixedly connected to the bottom of the support rod 43.

[0057] After the test assembly 30 is connected to the needle plate assembly 20, the third cylinder 41 operates to drive the lower pressure plate 42 to move downward, and through the support rod 43, it drives the lower pressure head 44 to press firmly against the top of the base plate 312, ensuring the firmness of the connection between the test assembly 30 and the needle plate assembly 20.

[0058] In use, the test component 30 is placed on top of the needle plate assembly 20, and the base plate 312 is positioned between the four positioning blocks 26 for coarse positioning. At this time, the positioning pin 25 is inserted into the positioning hole 314 on the base plate 312; the third cylinder 41 drives the lower pressure plate 42 and the lower pressure head 44 to press down as a whole, and firmly locks the test component 30 onto the needle plate assembly 20.

[0059] The automotive seat ECU product 50 to be tested is placed on the carrier plate 32. The fourth cylinder 331 drives the clamping plate 333 to move down, fixing the product 50 on the carrier plate 32 and preventing the product 50 from shifting.

[0060] When electrical performance testing is required, the second cylinder 361 operates, causing the second push plate 362 and its connector 363 to move horizontally towards the product 50. The connector 363 aligns and engages with the interface on the product 50, establishing an electrical connection. Subsequently, the test host completes the electrical test by applying signals to the product 50 and acquiring response signals.

[0061] When an airtightness test is required, the first cylinder 352 operates, driving the first push plate 353 and its nozzle 355 to move horizontally toward the product 50. The nozzle 355 is inserted into the corresponding nozzle opening on the product 50, and a sealing cavity is formed by the sealing ring at the end of the nozzle 355. An external airtightness tester injects gas at a certain pressure into the internal pipeline of the product 50 through the connecting pipe 354 and the nozzle 355, and judges whether the airtightness of the product is qualified by monitoring the pressure change.

Claims

1. A testing device for automotive seat ECU domain control, characterized in that, include: Rack (10); The needle plate assembly (20) is fixedly connected to the frame (10); The test assembly (30) is detachably mounted on the frame (10) and located above the needle plate assembly (20); A clamping assembly (40), mounted on the frame (10), is used to press the test assembly (30) onto the needle plate assembly (20); The test component (30) includes a fixing member (31), a carrier plate (32) for placing the product (50) is fixedly connected inside the fixing member (31), air tightness testing components that are connected to the air nozzle of the product (50) are fixedly connected on both sides of the fixing member (31), and a connecting component (36) that is connected to the interface of the product (50) is fixedly connected on the fixing member (31). The connecting assembly (36) includes a second cylinder (361), which is fixedly connected inside the housing (311). The output end of the second cylinder (361) is fixedly connected to a second push plate (362), and a connector (363) is fixedly connected to the second push plate (362). The connector (363) is electrically connected to the interface board (313) through a wire. The second cylinder (361) is used to drive the second push plate (362) to move so that the connector (363) docks with the interface of the product (50) to perform electrical performance testing on the product (50). The needle plate assembly (20) is provided with a plurality of probes (24). When the test assembly (30) is installed on the frame (10), the probes (24) are electrically connected to the test assembly (30). The fastener (31) includes a housing (311), the bottom of which is fixedly connected to a base plate (312). An interface plate (313) is embedded in the middle of the bottom of the base plate (312). The interface plate (313) has multiple connection holes, and the probe (24) is inserted into the connection holes.

2. The automotive seat ECU domain control testing equipment as described in claim 1, characterized in that: The needle plate assembly (20) includes a fixing plate (21), which is fixedly connected to the frame (10). A mounting plate (22) is fixedly connected to the bottom of the middle part of the fixing plate (21), and a needle plate (23) is fixedly connected to the top of the mounting plate (22). Multiple probes (24) are equidistantly arranged on the needle plate (23).

3. The automotive seat ECU domain control testing equipment as described in claim 2, characterized in that: Positioning blocks (26) are fixedly connected to the four corners of the top of the fixing plate (21).

4. The automotive seat ECU domain control testing equipment as described in claim 3, characterized in that: The base plate (312) is placed between four positioning blocks (26); The carrier plate (32) is fixedly connected inside the box (311).

5. The automotive seat ECU domain control testing equipment as described in claim 4, characterized in that: The top two sides of the fixed plate (21) are fixedly connected with positioning pins (25), and the bottom two sides of the base plate (312) are provided with positioning holes (314). The positioning pins (25) and positioning holes (314) are used to position and install the test component (30).

6. The automotive seat ECU domain control testing equipment as described in claim 5, characterized in that: The airtightness testing element includes a first airtightness testing element (34) and / or a second airtightness testing element (35); The second airtightness testing component (35) includes a support plate (351), which is fixedly connected to the housing (311). A first cylinder (352) is fixedly connected to the support plate (351). A first push plate (353) is fixedly connected to the output end of the first cylinder (352). A plurality of connecting pipes (354) are fixedly connected to the first push plate (353). One end of the connecting pipe (354) is fixedly connected to an air nozzle (355), and the other end of the connecting pipe (354) is connected to an external air source. The first cylinder (352) is used to drive the first push plate (353) to move so that the air nozzle (355) aligns with the air nozzle of the product (50).

7. The automotive seat ECU domain control testing equipment as described in claim 6, characterized in that: The connecting assembly (36) further includes a bracket (364), a slider (365), and a slide rail (366). The bracket (364) is fixedly connected to the second push plate (362), the slider (365) is fixedly connected to the top of the bracket (364), the slide rail (366) is fixedly connected to the housing (311), and the slider (365) is slidably connected to the slide rail (366).

8. The automotive seat ECU domain control testing equipment as described in claim 7, characterized in that: The test assembly (30) also includes a clamping component (33), which includes a fourth cylinder (331). The bottom of the fourth cylinder (331) is fixedly connected to the top of the housing (311). The output end of the fourth cylinder (331) is fixedly connected to a connecting frame (332). One end of the connecting frame (332) is fixedly connected to a clamping plate (333). The fourth cylinder (331) is used to drive the connecting frame (332) to move so that the clamping plate (333) is pressed against the upper surface of the product (50).

9. The automotive seat ECU domain control testing equipment as described in claim 1, characterized in that: The clamping assembly (40) includes a third cylinder (41), which is fixedly connected to the frame (10). The output end of the third cylinder (41) is fixedly connected to a lower pressure plate (42), and a support rod (43) is fixedly connected to the lower pressure plate (42). A lower pressure head (44) is fixedly connected to the bottom of the support rod (43).

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