Test fixture for capacitor electricity-taking power supply module

Abstract

The utility model, which relates to the technical field of the testing tool, discloses a testing tool for a capacitor power-taking power supply module comprising a pedestal, a testing seat, a carrier plate, a pressing plate, jacks, a thimble assembly and a circuit joint. According to the utility model, the base supports the test seat in a plugging manner, so that the test seat can be rapidly plugged, assembled and separated on the base, the jack on the test seat provides a plugging position for the ejector pin assembly, and the ejector pin assembly is inserted into the jack to realize the positioning and installation of the ejector pin assembly. The ejector pin assembly does not incline or deviate on the test seat, the position switching of the ejector pin assembly can be realized by pulling and plugging, the position of the ejector pin assembly on the top of the test seat can be rapidly adjusted according to the test requirements of different mainboards, and the operation is convenient and rapid; the circuit connector is arranged on the side wall of the test seat, so that the circuit connector can be effectively prevented from being damaged; the top of the thimble assembly passes through the carrier plate and is in contact connection with a test point or a pin on the surface of the mainboard.

Description

TECHNICAL FIELD

[0001] The utility model relates to test fixture technical field, concretely is a kind of test fixture of capacitor power supply module. BACKGROUND

[0002] Capacitor power supply is a kind of power supply using capacitor to store electric energy for load circuit.Capacitor power supply has the characteristics of instantaneous large current, and is suitable for some scenes requiring fast response and pulse output.With the progress and development of the times, electronic products need to be verified and tested before being put on the market, and the function and performance test is a very important link in the capacitor power supply test process, which can help detect the stability and consistency of the product, and the mainboard of capacitor power supply is its core component, and is also the core step of capacitor power supply test.

[0003] Patent (CN220455470U) discloses a kind of mainboard test fixture, including box, the upper end outer side of the box is fixedly installed with first positioning assembly, the upper end of the box is movably connected with base through first positioning assembly, the upper end rear side of the box is fixedly installed with fixed frame, the front of the fixed frame is installed with support sleeve, the inside of the support sleeve is slidably connected with pressure rod.The utility model adopts the above structure, when the test work of mainboard is needed, hand lever is pulled upwards, i.e. hand lever can drive pressing plate to move simultaneously through connecting frame and pressure rod, then mainboard is placed on base, then hand lever is pressed downwards, and the position of pressure rod is stabilized through support sleeve, the position of pressing plate is stabilized through second positioning assembly, i.e. the top pin is in contact with mainboard, and circuit connector is inserted into wiring terminal of mainboard, then test work can be carried out, so that mainboard is more convenient and fast when positioning, thereby the test efficiency of mainboard can be effectively improved.

[0004] The mainboard test fixture in the above patent, when testing the mainboard of capacitor power supply module, the top pin is fixed on the pressing plate by screw, the capacitor power supply module can have a variety of different circuit boards, and when testing different mainboards, the top pin needs to be disassembled and replaced, which is not good in operation convenience;And circuit connector is directly arranged at the bottom of pressing plate, and circuit connector is moved with pressing plate, which can easily cause damage to circuit connector. UTILITY MODEL CONTENTS

[0005] The utility model aims at providing a kind of test fixture of capacitor power supply module, to solve the problems raised in the above background art, the test fixture can quickly replace top pin assembly, and can effectively protect circuit connector.

[0006] To solve the above-mentioned technical problems, this utility model provides the following technical solution: a test fixture for a capacitor-powered power module, including a base and a carrier plate. The base has a base seat on top, and a test seat is detachably inserted into the top of the base seat. A pressure plate is movably connected above the test seat on the top of the base seat. The carrier plate is movably disposed between the test seat and the pressure plate. The test seat has several insertion holes on top, and a pin assembly is inserted into the inner side of each insertion hole. A circuit connector is provided on one side of the outer wall of the test seat, and the pin assembly is electrically connected to the circuit connector.

[0007] Furthermore, the ejector pin assembly includes an ejector pin, a connecting post, and a first spring. The first spring is sleeved on the outside of the ejector pin and the connecting post. The ejector pin is located above the connecting post. The top of the first spring is fixedly connected to the ejector pin, and the bottom of the first spring is fixedly connected to the bottom of the connecting post.

[0008] Furthermore, the first spring is made of insulating material, and the connecting post is electrically connected to the circuit connector.

[0009] Furthermore, the ejector pin assembly also includes a first linear bearing, which is slidably sleeved on the outside of the ejector pin, and the outer diameter of the first linear bearing is larger than the inner diameter of the insertion hole.

[0010] Furthermore, the test base has symmetrical strip-shaped grooves on the top of both sides of its outer wall, and the strip-shaped grooves and the circuit connectors are both located above the base.

[0011] Furthermore, the top of the carrier plate has several through holes that match the ejector pins, and the surfaces of the base and the test seat are each provided with several heat dissipation holes.

[0012] Furthermore, a servo electric cylinder is vertically provided at the center of one side of the bottom of the pressure plate, and a guide rod is vertically and symmetrically provided on the bottom of the pressure plate outside the servo electric cylinder. A second linear bearing is slidably sleeved on the top of the pressure plate outside the guide rod.

[0013] Furthermore, a second spring is sleeved on the outer side of the guide rod, and the two ends of the second spring are fixedly connected to the base and the pressure plate, respectively.

[0014] Compared with the prior art, the beneficial effects achieved by this utility model are:

[0015] 1. This utility model comprises a base, a test socket, a carrier board, a pressure plate, sockets, pin assemblies, and circuit connectors. The base provides plug-in support for the test socket, enabling rapid plug-in assembly and disassembly. The sockets on the test socket provide insertion positions for the pin assemblies. The sockets and pin assemblies have a simple plug-in relationship; the pin assemblies are positioned and installed by inserting them into the sockets, preventing tilting or shifting on the test socket. The position of the pin assemblies can be switched with a simple plug-in and unplugging motion. The position of the pin assemblies on the top of the test socket can be quickly adjusted according to the testing requirements of different motherboards, making operation convenient and fast. The circuit connectors are located on the side wall of the test socket, effectively preventing damage to the circuit connectors. The top of the pin assembly passes through the carrier board and contacts the test points or pins on the motherboard surface. Then, the test signals are led out through the circuit connectors and connected to other test circuits or test equipment. Finally, the corresponding test program is run to comprehensively test the performance and function of the motherboard.

[0016] 2. In this utility model, the ejector pin in the ejector pin assembly is used to contact the interface and test points on the motherboard, the connecting post is used to connect the ejector pin assembly to the circuit connector, and the first spring is used to provide elastic isolation between the ejector pin and the connecting post. Before the ejector pin is subjected to pressure, the ejector pin and the connecting post are not in contact, and the ejector pin assembly is in an open circuit state. The pressure plate presses down the carrier board and the motherboard, and the ejector pin of the ejector pin assembly passes through the carrier board and contacts the interface and test points on the motherboard. As the pressure plate continues to press down, the ejector pin moves down, the first spring is compressed, and the top of the ejector pin and the connecting post make contact and connect. At this time, the ejector pin assembly is in a closed circuit state, which can effectively transmit the test signal of the motherboard to the circuit connector, and then perform normal testing. When the pressure plate moves up, the ejector pin loses pressure, the first spring rebounds, the ejector pin and the connecting post separate, the ejector pin assembly is in an open circuit state, and the transmission of test signals to the motherboard is disconnected. Attached Figure Description

[0017] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings:

[0018] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0019] Figure 2 This is a structural schematic diagram of the base, test seat, and carrier plate of this utility model;

[0020] Figure 3 This is a schematic diagram of the structure of the base and test seat of this utility model;

[0021] Figure 4 This is a schematic diagram of the structure of the test stand of this utility model;

[0022] Figure 5 This is a schematic diagram of the structure of the ejector pin assembly of this utility model;

[0023] In the diagram: 1. Base; 2. Base plate; 3. Test seat; 301. Strip groove; 4. Carrier plate; 401. Through hole; 5. Pressure plate; 6. Insertion hole; 7. Ejector pin assembly; 701. Ejector pin; 702. Connecting post; 703. First spring; 704. First linear bearing; 8. Circuit connector; 9. Servo electric cylinder; 10. Guide rod; 11. Second linear bearing; 12. Second spring. Detailed Implementation

[0024] 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.

[0025] Please see Figures 1-5 This utility model provides a technical solution: a test fixture for a capacitor-powered power module, comprising a base 1 and a carrier plate 4. The base 1 has a base 2 on its top, and a test socket 3 is detachably inserted into the top of the base 2. A pressure plate 5 is movably connected above the test socket 3 on the top of the base 1. The carrier plate 4 is movably disposed between the test socket 3 and the pressure plate 5. The test socket 3 has several insertion holes 6 on its top, and a pin assembly 7 is inserted into the inner side of each insertion hole 6. A circuit connector 8 is provided on one side of the outer wall of the test socket 3, and the pin assembly 7 is electrically connected to the circuit connector 8. The pin assembly 7 includes a pin 701 and a connecting post 70. 2 and a first spring 703, the first spring 703 being sleeved on the outside of the ejector pin 701 and the connecting post 702, the ejector pin 701 being disposed above the connecting post 702, the top of the first spring 703 being fixedly connected to the ejector pin 701, and the bottom of the first spring 703 being fixedly connected to the bottom of the connecting post 702; the first spring 703 being made of insulating material, and the connecting post 702 being electrically connected to the circuit connector 8; the ejector pin assembly 7 also includes a first linear bearing 704, the first linear bearing 704 being slidably sleeved on the outside of the ejector pin 701, and the outer diameter of the first linear bearing 704 being larger than the inner diameter of the insertion hole 6.

[0026] In one embodiment, the test base 3 has symmetrical strip-shaped grooves 301 on the top of both sides of its outer wall. The design of the strip-shaped grooves 301 facilitates the overall picking and placing of the test base 3 through the strip-shaped grooves 301, and facilitates the overall replacement of the test base 3. The strip-shaped grooves 301 and the circuit connectors 8 are both located above the base 2, ensuring that the strip-shaped grooves 301 and the circuit connectors 8 are exposed on the outside of the base 2, ensuring the ease of operation of the test base 3, and at the same time ensuring the quick connection of the circuit connectors 8 to the external circuits.

[0027] In one embodiment, the top of the carrier plate 4 is provided with a plurality of through holes 401 that match the ejector pins 701. The through holes 401 are used to pass through the ejector pins 701, and the ejector pins 701 can directly contact the circuit contact points of the motherboard by passing through the through holes 401. The surfaces of the base 2 and the test socket 3 are provided with a plurality of heat dissipation holes, which can effectively ensure the heat dissipation performance of the base 2 and the test socket 3.

[0028] In one embodiment, a servo cylinder 9 is vertically mounted at the center of one side of the bottom of the pressure plate 5. A guide rod 10 is vertically and symmetrically mounted on the bottom of the pressure plate 5 outside the servo cylinder 9 and slidably connected to it. A second linear bearing 11 is slidably mounted on the top of the pressure plate 5 outside the guide rod 10. When the pressure plate 5 is raised or lowered, the servo cylinder 9 can be adjusted to extend or retract. The output end of the servo cylinder 9 drives the pressure plate 5 to be raised or lowered. The guide rod 10 guides the raising or lowering of the pressure plate 5, which can effectively improve the stability and safety of the raising or lowering movement of the pressure plate 5. The second linear bearing 11 slides between the pressure plate 5 and the guide rod 10, which can further improve the stability of the raising or lowering movement of the pressure plate 5.

[0029] In one embodiment, a second spring 12 is sleeved on the outside of the guide rod 10. The two ends of the second spring 12 are fixedly connected to the base 1 and the pressure plate 5, respectively. The second spring 12 provides elastic support between the base 1 and the pressure plate 5 on the outside of the guide rod 10, so that the pressure plate 5 can be elastically reset and adjusted after losing the pressure of the servo cylinder 9, which can effectively reduce the pressure damage caused by the pressure plate 5 to the main board.

[0030] The working principle of this utility model:

[0031] Refer to the instruction manual appendix Figures 1-5This utility model comprises a base 2, a test fixture 3, a carrier plate 4, a pressure plate 5, a socket 6, a pin assembly 7, and a circuit connector 8. The test fixture 3 is the core part of the fixture, used to fix and connect the motherboard. The test fixture has pin assemblies 7 corresponding to the interfaces and test points on the motherboard for transmitting test signals. The carrier plate 4 is used to support and position the motherboard, ensuring its stability during testing. The carrier plate 4 typically has grooves or positioning holes matching the shape of the motherboard. The pressure plate 5 presses the motherboard firmly onto the test fixture 3 during testing, ensuring tight contact between the pin assembly 7 and the test points on the motherboard. The circuit connector 8 (pin plate, probe plate) is the bridge connecting the test fixture 3 and the testing equipment. The circuit connector 8 has connection holes corresponding to the pin assemblies 7 on the test fixture 3, through which test signals are led out and connected to the testing equipment.

[0032] The base 1 provides overall support for the fixture, and the base 2 provides insertion support for the test socket 3, allowing for quick assembly and disassembly of the test socket 3 on the base 2. The socket 6 on the test socket 3 provides a insertion position for the ejector pin assembly 7. The socket 6 and the ejector pin assembly 7 have a simple insertion relationship; inserting the ejector pin assembly 7 into the socket 6 achieves positioning and installation, and the ejector pin assembly 7 will not tilt or shift on the test socket 3. A simple plug-and-play operation allows for easy switching of the ejector pin assembly 7's position during testing, enabling rapid adjustment of the ejector pin assembly 7 according to the testing requirements of different motherboards. The top of socket 3 allows for convenient and quick operation, and the entire socket 3 can be quickly plugged in and replaced. The circuit connector 8 is located on the side wall of the socket 3, and will not make actual contact with the circuit connector 8 during the pressing of the motherboard, which can effectively prevent damage to the circuit connector 8. The top of the ejector pin assembly 7 passes through the carrier plate 4 and makes close contact with the test points or pins on the surface of the motherboard. Then, the test signal is led out through the circuit connector 8 and connected to other test circuits or test equipment. Finally, the corresponding test program is run to comprehensively test the performance and function of the motherboard.

[0033] The ejector pin 701 in the ejector pin assembly 7 is used to contact the interface and test points on the motherboard. The connecting post 702 is used to connect the ejector pin assembly 7 to the circuit connector 8. The first spring 703 is used to provide elastic isolation between the ejector pin 701 and the connecting post 702. Before the ejector pin 701 is under pressure, the ejector pin 701 and the connecting post 702 are not in contact, and the ejector pin assembly 7 is in an open circuit state. The pressure plate 5 presses down the carrier board 4 and the motherboard, and the ejector pin 701 of the ejector pin assembly 7 passes through the interface and test points on the motherboard and the carrier board 4. Contact is established; as the pressure plate 5 continues to press down, the ejector pin 701 moves down, the first spring 703 is compressed, and the ejector pin 701 and the top of the connecting post 702 make contact and connect. At this time, the ejector pin assembly 7 is in a closed circuit state, which can effectively transmit the test signal of the motherboard to the circuit connector 8, and then perform normal testing; when the pressure plate 5 moves up, the ejector pin 701 loses pressure, the first spring 703 rebounds, the ejector pin 701 and the connecting post 702 separate, the ejector pin assembly 7 is in an open circuit state, and the transmission of the test signal to the motherboard is disconnected;

[0034] The first linear bearing 704 slides and guides the ejector pin 701 at the top of the test seat 3. At the same time, the first linear bearing 704 limits and supports the ejector pin assembly 7 on the outside of the insertion hole 6, which can effectively prevent the ejector pin assembly 7 from completely entering the test seat 3 after being compressed.

[0035] This invention has the advantages of high testing efficiency, high testing accuracy, and simple operation; it can quickly test a large number of motherboards, improving production efficiency; at the same time, due to the precise design and manufacturing of the test fixture, the accuracy of the test results can be ensured; in addition, the operation of the test fixture is relatively simple and does not require too much professional skills and training.

[0036] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A test fixture for a capacitive power harvesting power module, comprising a base (1) and a carrier plate (4), characterized in that: The base (1) top is provided with a base (2), the base (2) top is detachably inserted with test seat (3), the base (1) top is provided with the movable connection pressing plate (5) above test seat (3), the carrier plate (4) is movably arranged between test seat (3) and pressing plate (5), the test seat (3) top is provided with a plurality of jack (6), the jack (6) inside is inserted with the thimble assembly (7), the test seat (3) outer wall one side is equipped with circuit connector (8), the thimble assembly (7) and circuit connector (8) are electrically connected.

2. The test fixture for a capacitive power harvesting power supply module of claim 1, wherein: The thimble assembly (7) includes a thimble (701), a connecting column (702) and a first spring (703), the first spring (703) is sleeved on the outside of the thimble (701) and the connecting column (702), the thimble (701) is arranged above the connecting column (702), the top of the first spring (703) is fixedly connected with the thimble (701), and the bottom of the first spring (703) is fixedly connected with the bottom of the connecting column (702).

3. The test fixture of claim 2, wherein: The first spring (703) is made of insulating material, and the connecting column (702) is electrically connected with the circuit connector (8).

4. The test fixture of claim 2, wherein: The thimble assembly (7) further comprises a first linear bearing (704), the first linear bearing (704) is slidably sleeved on the outside of the thimble (701), and the outer diameter of the first linear bearing (704) is greater than the inner diameter of the jack (6).

5. The test fixture for a capacitive power harvesting power supply module of claim 1, wherein: The test seat (3) outer wall both sides top is provided with symmetrically strip-shaped recess (301), and the strip-shaped recess (301) and circuit connector (8) are located above the base (2).

6. The test fixture of claim 1, wherein: The carrier plate (4) top is provided with a plurality of through holes (401) matched with the thimble (701), and the base (2) and the test seat (3) are provided with a plurality of heat dissipation holes.

7. The test fixture of claim 1, wherein: The bottom of the pressing plate (5) is vertically provided with a servo cylinder (9) on one side of the center, and the bottom of the pressing plate (5) is vertically and symmetrically provided with a slidingly connected guide rod (10) outside the servo cylinder (9), and the top of the pressing plate (5) is slidably sleeved with a second linear bearing (11) outside the guide rod (10).

8. The test fixture of claim 7, wherein: The guide rod (10) is sleeved with a second spring (12) outside, and the second spring (12) is fixedly connected with the base (1) and the pressing plate (5) at both ends.

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