Electronic product modularization testing machine and electronic product modularization testing jig thereof
By designing modular electronic product safety testing machines and test fixtures, the problem of insufficient applicability of existing equipment is solved, the safety testing needs of a variety of electronic products are achieved, the applicable performance of the equipment is improved and the operating costs are reduced.
Patent Information
- Application Number
- CN202421581839.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-05
- Publication Date
- 2025-05-16
- Estimated Expiration
- 2034-07-05
AI Technical Summary
Due to the differences in product shape and structure and testing points, existing electronic product safety testing equipment are insufficiently applicable, resulting in the equipment being only suitable for safety testing of one or several products, and its adaptability needs to be improved.
A modular test machine for electronic products and its modular test fixtures are designed. Through standardized test circuit boards and test trays, the purpose of quickly replacing the products to be tested is suitable for safety testing of different types of electronic products.
A safety testing equipment is implemented to be competent for the safety testing of a variety of electronic products, improving the applicable performance of the equipment and reducing the operating costs of electronic product manufacturers.
Smart Images
Figure CN222882736U_ABST
Abstract
Description
Technical Field
[0001] The present application belongs to the technical field of electronic product safety testing, and specifically relates to an electronic product modular testing machine and an electronic product modular testing fixture used therein. Background Art
[0002] Existing electronic product safety testing equipment, such as high-voltage machines, aging machines, safety testers, etc., when testing different types of products, due to the great differences in the shape and structure of the products and the number, distribution and location of the test points, often a device worth tens of thousands of dollars can only be used for the safety testing of one or several products, and its adaptability needs to be improved. Utility Model Content
[0003] In view of this, the present application provides an electronic product modular testing machine and an electronic product modular testing fixture used therein to solve all or part of the technical problems described in the background technology section of the present application.
[0004] The electronic product modular test fixture provided by this application to solve its technical problems is:
[0005] A modular test fixture for electronic products, characterized in that it includes a needle bed carrier, a needle bed large plate, a test circuit board, a plug-in fixing plate, and an elastic member; the needle bed carrier, the needle bed large plate, the test circuit board, and the plug-in fixing plate are placed in sequence, the elastic member is arranged between the needle bed carrier and the needle bed large plate, and the needle bed large plate, the test circuit board, and the plug-in fixing plate are fixedly connected; the test circuit board includes a circuit board body, a test probe, and an interface terminal row, the test probe extends toward the needle bed carrier and the needle bed large plate, and the interface terminal row extends toward the plug-in fixing plate; the needle bed carrier is provided with a carrier probe through hole and a product mold position, and the corresponding position of the needle bed large plate is provided with a large plate probe through hole, the test probe passes through the large plate probe through hole and extends into the carrier probe through hole; the plug-in fixing plate is provided with a terminal row through hole, and the interface terminal row is partially located in the terminal row through hole.
[0006] Preferably, the electronic product modular test fixture further comprises a carrier plate guide component, a guide hole is arranged on the needle bed carrier plate, and the carrier plate guide component is fixedly arranged on the needle bed large plate and extends into the guide hole.
[0007] Preferably, the electronic product modular test fixture also includes a carrier plate guide mechanism, which includes a linear bearing and a retaining spring, the linear bearing is fixed to the needle bed large plate by the retaining spring and the shaft of the linear bearing is fixed to the needle bed carrier plate.
[0008] Preferably, the electronic product modular test fixture also includes a carrier plate limiting component, the carrier plate limiting component includes a sliding part and a limiting part, and a limiting hole is arranged on the needle bed carrier plate; the limiting part is fixedly arranged on the needle bed large plate, and the sliding part extends into the limiting hole.
[0009] Preferably, the modular test fixture for electronic products also includes a circuit board guide component, which is fixedly mounted on the needle bed plate and extends out of the needle bed plate at both ends; a PCB guide hole is provided on the needle bed carrier plate, and one end of the circuit board guide component located on one side of the needle bed carrier plate extends into the PCB guide hole; the circuit board guide component is located at one end of the test circuit board and is used to provide guidance for the assembly of the test circuit board.
[0010] Preferably, the electronic product modular test fixture further comprises a supporting component, and the supporting component is arranged between the needle bed plate and the plug-in fixing plate.
[0011] Preferably, the needle bed plate, the plug-in fixing plate and the supporting component are fixedly connected.
[0012] Preferably, the needle bed plate, the plug-in fixing plate and the supporting component are fixedly connected by screws.
[0013] The electronic product modular testing machine provided by this application to solve its technical problems is:
[0014] A modular testing machine for electronic products, characterized by comprising a testing host and a modular testing fixture for electronic products as described in any of the above technical solutions.
[0015] Preferably, the test host includes a machine base, a support frame is provided on the machine base 1, a needle plate and a needle plate driving device are provided on the support frame, and the needle plate includes a pressure plate and an ejector pin; a fixture installation position is also provided on the machine base, and a docking terminal row is provided in the fixture installation position; the electronic product modular test fixture is arranged in the fixture installation position, and a mechanical and electrical connection is established between the interface terminal row and the docking terminal row by plugging, and the needle plate is opposite to the needle bed carrier of the electronic product modular test fixture.
[0016] Beneficial technical effects:
[0017] The electronic product modular testing machine disclosed in the present application, by designing the test circuit board and test tray of the product to be tested as a standardized fixture module, can achieve the purpose of quickly replacing the product to be tested through hard plug-in and pull-out operations between terminal blocks when the product to be tested needs to be replaced, so that one safety testing device can be competent for the safety testing of various electronic products that require the use of different test circuit boards to complete the safety test, which is beneficial to improving the applicability of the equipment and reducing the operating costs of electronic product manufacturers.
[0018] The technical solution and technical effects of the present application are described in detail below in conjunction with the accompanying drawings and specific implementation methods. BRIEF DESCRIPTION OF THE DRAWINGS
[0019] Figure 1: Schematic diagram of the overall structure of the electronic product modular test machine;
[0020] Figure 2 : Schematic diagram of the disassembly of the fixture of the modular test machine for electronic products;
[0021] Figure 3 : Schematic diagram of the front view structure of the modular test fixture for electronic products;
[0022] Figure 4 : Schematic diagram of the rear view structure of the modular test fixture for electronic products;
[0023] Figure 5 : Exploded view of the front view structure of the modular test fixture for electronic products;
[0024] Figure 6 : Exploded view of the rear view structure of the modular test fixture for electronic products;
[0025] Figure 7 : Figure 5 A magnified view of the structure of the middle part A;
[0026] Figure 8 : Figure 3 Enlarged view of the structure of part B in the middle.
[0027] Icon Description:
[0028] 1-base, 2-support frame, 3-needle plate, 4-needle plate driving device, 5-fixture installation position, 6-connection terminal block;
[0029] 31-pressing plate, 32-thimble;
[0030] 10-needle bed carrier plate, 20-needle bed large plate, 30-test circuit board, 40-plug-in fixing plate, 50-elastic member, 60-carrier plate guide component, 70-carrier plate guide mechanism, 80-carrier plate limiting component, 90-circuit board guide component, 100-support component;
[0031] 110-carrier probe through hole, 120-product mold position, 130-guide hole, 140-limit hole, 150-PCB guide hole;
[0032] 210-large plate probe through hole;
[0033] 310-circuit board body, 320-test probe, 330-interface terminal block;
[0034] 410-terminal row through hole;
[0035] 710-linear bearing, 720-circlip;
[0036] 810-sliding part, 820-limiting part. DETAILED DESCRIPTION
[0037] See also Figure 5-Figure 6 The electronic product modular test machine disclosed in the present application includes a test host and an electronic product modular test fixture.
[0038] The test host comprises a machine base 1 , on which a support frame 2 is arranged, on which a needle plate 3 and a needle plate driving device 4 are arranged, and the needle plate 3 comprises a pressing plate 31 and an ejector pin 32 .
[0039] The base 1 is also provided with a fixture installation position 5, and a docking terminal row 6 is provided in the fixture installation position 5. The electronic product modular test fixture is arranged in the fixture installation position 5, and a mechanical and electrical connection is established by hard plugging between the terminal row on the test circuit board integrated in the electronic product modular test fixture and the docking terminal row 6. The pin plate 3 faces the electronic product modular test fixture.
[0040] During normal testing, the needle plate driving device 4 (such as a hydraulic cylinder, a pneumatic cylinder, a ball screw slide module, etc.) drives the needle plate 3 to move toward the electronic product modular test fixture, pressing the product to be tested on the electronic product modular test fixture for safety testing.
[0041] When the product to be tested needs to be replaced, first remove the current electronic product modular test fixture in the fixture installation position 5, and replace it with the electronic product modular test fixture of the product to be tested, so as to quickly complete the replacement of the product fixture and the corresponding test circuit board.
[0042] At present, when electronic product manufacturers conduct safety tests on different products, such as aging tests, they need to pull the existing test equipment back to the equipment manufacturer to replace the test circuit board and the corresponding test tray or test mold in order to meet the production needs. The time for transportation back and forth plus the time for equipment modification can easily take several weeks, and the cost is basically more than several thousand yuan. If you buy a brand new safety testing machine for each product, the cost is more than 10,000 yuan. Using the electronic product modular testing machine disclosed in this application and the electronic product modular testing fixture used therein, when it is necessary to replace the product to be tested, the electronic product manufacturer only needs to ask the test equipment manufacturer to provide the electronic product modular testing fixture of the corresponding product. The tester can complete the replacement within a few minutes with simple tools such as a wrench or a screwdriver. The overall time is greatly reduced and the cost can be controlled within a few hundred yuan.
[0043] See also Figure 1-Figure 8 The electronic product modular test fixture disclosed in the present application includes a needle bed carrier 10, a needle bed large plate 20, a test circuit board 30, a plug-in fixing plate 40, an elastic member 50, a carrier guide mechanism 70, a carrier limit component 80, a circuit board guide component 90, and a support component 100.
[0044] The needle bed carrier plate 10, the needle bed large plate 20, the test circuit board 30, and the plug-in fixing plate 40 are placed in order from top to bottom, and the elastic member 50 is arranged between the needle bed carrier plate 10 and the needle bed large plate 20, and the needle bed large plate 20, the test circuit board 30, and the plug-in fixing plate 40 are fixedly connected. There is a certain distance between the needle bed carrier plate 10 and the needle bed large plate 20, and the needle bed carrier plate 10 can be pressed against the needle bed large plate 20 under the pressure of the needle plate 3. The elastic member 50, such as a spring or a spring sheet, can provide a buffer when the needle bed carrier plate 10 is pressed against the needle bed large plate 20 to increase stability.
[0045] The test circuit board 30 includes a circuit board body 310, a test probe 320, and an interface terminal row 330. The test probe 320 extends toward the needle bed carrier 10 and the needle bed large plate 20, and the interface terminal row 330 extends toward the plug-in fixing plate 40. The needle bed carrier 10 is provided with a carrier probe through hole 110 and a product mold position 120 for placing the product to be tested, and the corresponding position of the needle bed large plate 20 is provided with a large plate probe through hole 210. The test probe 320 passes through the large plate probe through hole 210 and extends into the carrier probe through hole 110. When the needle bed carrier 10 is pressed against the needle bed large plate 20 under the pressure of the needle plate 3, the test probe 320 can extend from the carrier probe through hole 110 to contact the product to be tested for safety testing.
[0046] The plug-in fixing plate 40 is provided with a terminal block through hole 410 , and a portion of the interface terminal block 330 is located in the terminal block through hole 410 .
[0047] The support component 100 is disposed between the needle bed plate 20 and the plug-in fixing plate 40 to increase the structural strength and prevent the test circuit board 30 from being damaged during plug-in installation. The needle bed plate 20, the plug-in fixing plate 40, and the support component 100 are fixedly connected by screws and / or buckles.
[0048] The carrier plate guide mechanism 70 includes a linear bearing 710 and a retaining spring 720. The linear bearing 710 is fixed to the needle bed plate 20 through the retaining spring 720, and the shaft of the linear bearing 710 is fixed to the needle bed carrier plate 10. When the needle bed carrier plate 10 is pressed against the needle bed plate 20 under the pressure of the needle plate 3, the shaft of the linear bearing 710 moves downward into the sleeve; when the needle plate 3 rises upward under the action of the needle plate driving device 4, the needle bed carrier plate 10 leaves the needle bed plate 20 under the action of the elastic member 50, and the shaft of the linear bearing 710 extends out of the sleeve and moves upward. The carrier plate guide mechanism 70 composed of the linear bearing 710 and the retaining spring 720 can reduce resistance, increase stability, and prevent the needle bed carrier plate 10 from excessively moving upward.
[0049] In a modified embodiment of the present application, a simplified carrier guide component 60 may also be used to complete the carrier movement guide function. Figure 8 The carrier plate guide component 60 is a columnar structure arranged on the needle bed large plate 20 , and a guide hole 130 is arranged at a corresponding position of the needle bed carrier plate 10 . The carrier plate guide component 60 is fixedly arranged on the needle bed large plate 20 and extends into the guide hole 130 .
[0050] The carrier plate limiting component 80 is used to limit the movement and extrusion degree of the needle bed carrier plate 10 toward the needle bed large plate 20 to prevent the product to be tested from being squeezed and damaged. Figure 7 The carrier plate limiting component 80 includes a sliding portion 810 and a limiting portion 820. The size of the limiting portion 820 is larger than that of the sliding portion 810. The limiting portion 820 is fixedly arranged on the needle bed large plate 20. The sliding portion 810 extends into the limiting hole 140 on the needle bed carrier plate 10. The size of the limiting hole 140 is larger than that of the limiting portion 820. In this way, when the needle bed carrier plate 10 moves downward toward the needle bed large plate 20 under the action of the needle plate 3, when the limiting portion 820 contacts the needle bed carrier plate 10, since the limiting portion 820 cannot enter the limiting hole 140, it will have a limiting effect on the needle bed carrier plate 10. Preferably, the carrier plate limiting component 80 can be a cylindrical head shoulder screw.
[0051] The circuit board guide component 90 is fixedly set on the needle bed plate 20 and its two ends extend out of the needle bed plate 20; a PCB guide hole 150 is set on the needle bed carrier plate 10, and one end of the circuit board guide component 90 located on one side of the needle bed carrier plate 10 extends into the PCB guide hole 150, which can provide a guiding effect for the movement of the needle bed carrier plate 10; the circuit board guide component 90 is located at one end of the test circuit board 30 and is used to provide guidance for the assembly of the test circuit board 30, or in other words, a plurality of circuit board guide components 90 define an area for assembling the test circuit board 30.
[0052] During installation, mechanical and electrical connections are established by hard plugging between the interface terminal row 330 on the test circuit board 30 and the docking terminal row 6. During normal testing, the needle plate driving device 4 drives the needle plate 3 to press down toward the electronic product modular test fixture, and the needle bed carrier plate 10 on the electronic product modular test fixture approaches the needle bed large plate 20 under the action of the needle plate 3, and the test probe 320 extends out of the carrier probe through hole 110 to contact the product to be tested for relevant testing.
[0053] When the product to be tested needs to be replaced, first remove the current electronic product modular test fixture in the fixture installation position 5, and replace it with the electronic product modular test fixture of the product to be tested, so as to quickly complete the replacement of the product fixture and the corresponding test circuit board.
[0054] The technical scheme and technical effects of the present application are described in detail above in combination with the drawings and specific embodiments of the specification. It should be noted that technicians in this field can also develop other embodiments on this basis; any simple deformation and equivalent substitution that does not deviate from the innovative concept of the present application are covered by the present application and belong to the scope of protection of this patent.
Claims
1. Modular test fixture for electronic products, characterized by: It comprises a needle bed carrier plate (10), a needle bed large plate (20), a test circuit board (30), a plug-in fixing plate (40), and an elastic member (50); The needle bed carrier plate (10), the needle bed large plate (20), the test circuit board (30), and the plug-in fixing plate (40) are placed in sequence, the elastic member (50) is arranged between the needle bed carrier plate (10) and the needle bed large plate (20), and the needle bed large plate (20), the test circuit board (30), and the plug-in fixing plate (40) are fixedly connected; The test circuit board (30) comprises a circuit board body (310), a test probe (320), and an interface terminal block (330); the test probe (320) extends in the direction of the needle bed carrier plate (10) and the needle bed large plate (20), and the interface terminal block (330) extends in the direction of the plug-in fixing plate (40); The needle bed carrier plate (10) is provided with a carrier plate probe through hole (110) and a product mold position (120), and a large plate probe through hole (210) is provided at a corresponding position of the needle bed large plate (20), and the test probe (320) passes through the large plate probe through hole (210) and extends into the carrier plate probe through hole (110); The plug-in fixing plate (40) is provided with a terminal block through hole (410), and a portion of the interface terminal block (330) is located within the terminal block through hole (410).
2. The electronic product modular test fixture according to claim 1, characterized in that: The electronic product modular test fixture further comprises a carrier plate guide component (60), the needle bed carrier plate (10) is provided with a guide hole (130), and the carrier plate guide component (60) is fixedly arranged on the needle bed large plate (20) and extends into the guide hole (130).
3. The electronic product modular test fixture according to claim 1, characterized in that: The electronic product modular test fixture further comprises a carrier plate guiding mechanism (70), the carrier plate guiding mechanism (70) comprising a linear bearing (710) and a retaining spring (720), the linear bearing (710) being fixed to the needle bed large plate (20) via the retaining spring (720), and the shaft of the linear bearing (710) being fixed to the needle bed carrier plate (10).
4. The electronic product modular test fixture according to claim 1, characterized in that: The electronic product modular test fixture further comprises a carrier plate limiting component (80), the carrier plate limiting component (80) comprising a sliding portion (810) and a limiting portion (820), and a limiting hole (140) is provided on the needle bed carrier plate (10); The limiting portion (820) is fixedly arranged on the needle bed large plate (20), and the sliding portion (810) extends into the limiting hole (140).
5. The electronic product modular test fixture according to claim 1, characterized in that: The electronic product modular test fixture further comprises a circuit board guide component (90), wherein the circuit board guide component (90) is fixedly arranged on the needle bed large plate (20) and has two ends extending out of the needle bed large plate (20); A PCB guide hole (150) is provided on the needle bed carrier (10); one end of the circuit board guide component (90) located on one side of the needle bed carrier (10) extends into the PCB guide hole (150); and the circuit board guide component (90) is located at one end of the test circuit board (30) and is used to provide guidance for the assembly of the test circuit board (30).
6. The electronic product modular test fixture according to claim 1, characterized in that: The electronic product modular test fixture further comprises a supporting component (100), wherein the supporting component (100) is arranged between the needle bed large plate (20) and the plug-in fixing plate (40).
7. The electronic product modular test fixture according to claim 6, characterized in that: The needle bed large plate (20), the plug-in fixing plate (40), and the supporting component (100) are fixedly connected.
8. The electronic product modular test fixture according to claim 7, characterized in that: The needle bed plate (20), the plug-in fixing plate (40), and the supporting component (100) are fixedly connected by means of screws.
9. Electronic product modular testing machine, characterized by: It comprises a test host and an electronic product modular test fixture according to any one of claims 1 to 8.
10. The electronic product modular testing machine according to claim 9, characterized in that: The test host comprises a machine base (1), a support frame (2) is arranged on the machine base (1), a needle plate (3) and a needle plate driving device (4) are arranged on the support frame (2), and the needle plate (3) comprises a pressing plate (31) and an ejector pin (32); The machine base (1) is also provided with a fixture installation position (5), and a docking terminal block (6) is provided in the fixture installation position (5); The electronic product modular test fixture is arranged in the fixture installation position (5), the interface terminal block (330) and the docking terminal block (6) are mechanically and electrically connected by plugging, and the needle plate (3) faces the needle bed carrier plate (10) of the electronic product modular test fixture.