Circuit board test tooling outer box

Abstract

The utility model discloses a circuit board test frock outer box, including bottom box, mounting panel and a plurality of probes, the elastic connection of bottom box top can support the support plate of power supply circuit board, and the mounting panel is fixed in the bottom box upper rear side, and the front side of mounting panel is fixed with a fixed plate, and the front side of fixed plate upper end is equipped with the hinge plate, and the front side of fixed plate lower extreme is equipped with fixed cylinder, and the inside slide connection of fixed cylinder is sliding axle, and the bottom connection of sliding axle is flat board, and the probe is corresponding and is equipped at flat board bottom, and the upper end of sliding axle is articulated first hinge plate, and the other end of first hinge plate is articulated handle, and the hinge plate is articulated second hinge plate, and handle and second hinge plate fixed connection, through the elastic connection of bottom box top support plate, after the power supply circuit board is placed on the support plate, the support plate can be up and down elastic adjustment, and when testing, can press down the circuit board to probe, makes probe all can contact with circuit board, and the elastic adjustment of support plate makes up for some probe not to contact with the problem of circuit board because of the processing error etc.

Description

Technical Field

[0001] This utility model belongs to the field of testing technology, and in particular relates to an outer box for circuit board testing fixtures. Background Technology

[0002] In the process of developing and manufacturing power circuit boards, functional and circuit testing of the power circuit boards is involved, and test fixtures are used during the testing.

[0003] Regarding testing fixtures, according to existing technology, a utility model patent with Chinese patent authorization announcement number CN212845471U discloses a power supply testing fixture, which mainly includes a fixture frame, a pressure rod installed on the side of the fixture frame, a connecting sleeve installed on the side of the pressure rod, a pressure plate installed at the bottom of the connecting sleeve, a test probe installed on the pressure plate, a bottom box provided below the fixture frame, and a rubber pad provided above the bottom box.

[0004] In the existing technology, similar power supply testing fixtures have been found to have areas for improvement during actual implementation: during testing, the height of the base box on which the circuit board is placed cannot be flexibly adjusted; during probe testing, due to height processing errors of the circuit board, some probes may fail to contact the circuit board, resulting in test failure. Utility Model Content

[0005] In view of the shortcomings and defects in the existing technology, the purpose of this utility model is to provide a circuit board test fixture outer box, which solves the problem that the height of the bottom box for placing the circuit board in the existing power supply test fixture box cannot be flexibly adjusted, which easily causes some probes to fail to contact the circuit board during probe testing, resulting in test failure.

[0006] To solve the above-mentioned technical problems, the present invention adopts the following technical solution: a circuit board testing fixture outer box, including a base box, a mounting plate and multiple probes. A detachable support plate for supporting the power circuit board is elastically connected to the top of the base box. The mounting plate is fixed to the upper rear side of the base box. A fixing plate is fixedly connected to the front side of the mounting plate. A hinge plate is provided on the upper front side of the fixing plate. A fixing cylinder is provided on the lower front side of the fixing plate. A sliding shaft is slidably connected inside the fixing cylinder. A flat plate is detachably connected to the bottom of the sliding shaft. The probes are correspondingly arranged at the bottom of the flat plate. A first hinge plate is hinged to the upper end of the sliding shaft. A handle is hinged to the other end of the first hinge plate. A second hinge plate is hinged to the hinge plate. The handle is fixedly connected to the second hinge plate.

[0007] As a further improvement of this utility model, a plurality of support rods are provided above the bottom box, and a sleeve is slidably connected above the support rods. A first connecting plate is fixed above the sleeve, and the first connecting plate is detachably connected to the support plate. Springs are sleeved on the outer sides of the sleeve and the support rods, and the springs support the connection between the first connecting plate and the bottom box.

[0008] As a further improvement of this utility model, the first connecting plate and the supporting plate are connected by bolts.

[0009] As a further improvement of this utility model, a second connecting plate is provided at the bottom of the sliding shaft, and the second connecting plate is connected to the flat plate by bolts.

[0010] As a further improvement of this utility model, the flat plate is made of a transparent material.

[0011] As a further improvement of this utility model, the rear two sides of the mounting plate are connected and mounted on the base box by support plates.

[0012] Compared with the prior art, this utility model has the following advantages: 1. By elastically connecting a support plate above the base box, and then placing the power circuit board on the support plate, the support plate can be elastically adjusted up and down. Therefore, during testing, the probes can be pressed down on the circuit board so that all probes can contact the circuit board. The elastic adjustable structure of the support plate provides a certain elastic adjustment space for the contact between the probes and the circuit board, making up for the problem that some probes cannot contact the circuit board due to processing errors, etc., and ensuring the normal progress of the test.

[0013] Furthermore, by detachably connecting the sliding shaft to the flat plate and the support plate to the base box, the flat plate and support plate can be removed. When testing different circuit boards, different support plates and flat plates that match the corresponding circuit boards can be replaced, thus expanding the range of applications.

[0014] 2. By setting a support rod above the bottom box, a sleeve is slidably connected above the support rod, and a first connecting plate is fixed above the sleeve. A spring is provided on the outside of the support rod and the sleeve, and the spring supports the connection between the first connecting plate and the bottom box. Therefore, the first connecting plate can be elastically adjusted up and down relative to the bottom box, thereby driving the flat plate to be compressed and adjusted up and down. The structure is simple.

[0015] 3. By making the plate with a transparent material, the contact of the probe can be observed from above. Attached Figure Description

[0016] The present invention will be further described below with reference to the accompanying drawings: Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2This is a schematic diagram of the connection structure between the flat panel and the base box; Figure 3 for Figure 2 Enlarged view at point A; In the diagram: 1. Base box; 2. Mounting plate; 3. Probe; 4. Support plate; 5. Fixing plate; 6. Hinge plate; 7. Fixing cylinder; 8. Sliding shaft; 9. Flat plate; 10. First hinge plate; 11. Handle; 12. Second hinge plate; 13. Support rod; 14. Sleeve; 15. First connecting plate; 16. Spring; 17. Second connecting plate; 18. Support plate. Detailed Implementation

[0017] The following is in conjunction with the appendix Figure 1-3 The present invention will be described in further detail below. For clarity, only the structures relevant to the inventive features of the present invention are shown in the figures.

[0018] For ease of description, the coordinate system is defined as follows: Figure 1 As shown, the left and right directions are horizontal, the front and back directions are vertical, and the up and down directions are vertical.

[0019] This utility model discloses an outer casing for a circuit board testing fixture. (Refer to...) Figure 1 A circuit board testing fixture outer box includes a base box 1, a mounting plate 2 and multiple probes 3. A detachable support plate 4 for supporting the power circuit board is elastically connected to the top of the base box 1. The mounting plate 2 is fixed to the upper rear side of the base box 1. Specifically, the two rear sides of the mounting plate 2 are fixedly connected to the base box 1 by support plates 18.

[0020] A fixing plate 5 is fixedly connected to the front side of the mounting plate 2. A hinge plate 6 is fixedly connected to the upper front side of the fixing plate 5, and a fixing cylinder 7 is fixed to the lower front side of the fixing plate 5. A sliding shaft 8 is vertically slidably connected inside the fixing cylinder 7. A flat plate 9 is detachably connected to the bottom of the sliding shaft 8, and the probe 3 is correspondingly positioned at the bottom of the flat plate 9. Furthermore, the flat plate 9 is made of transparent material. By using transparent material for the flat plate 9, the contact status of the probe 3 can be observed from above.

[0021] A first hinge plate 10 is hinged to the upper end of the sliding shaft 8, and a handle 11 is hinged to the other end of the first hinge plate 10. A second hinge plate 12 is hinged to the hinge plate 6, and the handle 11 is fixedly connected to the second hinge plate 12.

[0022] like Figure 2 and Figure 3As shown, the installation and connection method between the base box 1 and the support plate 4 is as follows: Multiple support rods 13 are fixed above the base box 1. A sleeve 14 is slidably connected above the support rods 13. A first connecting plate 15 is fixed above the sleeve 14. The first connecting plate 15 is detachably connected to the support plate 4. Springs 16 are fitted on the outer sides of the sleeve 14 and the support rods 13, supporting the connection between the first connecting plate 15 and the base box 1. By providing support rods 13 above the base box 1, slidably connecting the sleeve 14 above the support rods 13, fixing the first connecting plate 15 above the sleeve 14, and providing springs 16 on the outer sides of the support rods 13 and the sleeve 14, the first connecting plate 15 can be elastically adjusted vertically relative to the base box 1, thereby allowing the plate 9 to be compressed and adjusted vertically. The structure is simple. Furthermore, to facilitate the replacement and disassembly of the support plate 4, the first connecting plate 15 is connected to the support plate 4 by bolts.

[0023] The connection between the sliding shaft 8 and the plate 9 is as follows: a second connecting plate 17 is provided at the bottom of the sliding shaft 8, and the second connecting plate 17 is connected to the plate 9 by bolts. By detachably connecting the sliding shaft 8 and the plate 9, and detachably connecting the support plate 4 and the base box 1, the plate 9 and the support plate 4 can be removed. When testing different circuit boards, different support plates 4 and plates 9 that match the corresponding circuit boards can be replaced, thus expanding the range of applications.

[0024] In use, the power circuit board is first placed on the support plate 4, then the handle 11 is pressed down, causing the probe 3 to press against the power circuit board. The detection switch is then turned on to begin testing. By elastically connecting a support plate 4 above the base box 1, and placing the power circuit board on it, the support plate 4 can be adjusted vertically. Therefore, during testing, the probe 3 can be pressed down on the circuit board, ensuring that all probes 3 can contact the circuit board. The elastically adjustable structure of the support plate 4 provides a certain amount of adjustment space for the contact between the probe 3 and the circuit board, compensating for the problem of some probes 3 not being able to contact the circuit board due to processing errors, thus ensuring the normal conduct of the test.

[0025] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" 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. It should be understood that the specific embodiments described herein are only for understanding this utility model and are not intended to limit this utility model. All other embodiments obtained by those skilled in the art without inventive effort are within the scope of protection of this utility model.

Claims

1. A circuit board test fixture outer casing, comprising a base box, a mounting plate, and multiple probes, characterized in that: A detachable support plate for supporting the power circuit board is elastically connected to the top of the base box. The mounting plate is fixed to the upper rear side of the base box. A fixing plate is fixedly connected to the front side of the mounting plate. A hinge plate is provided on the upper front side of the fixing plate, and a fixing cylinder is provided on the lower front side of the fixing plate. A sliding shaft is slidably connected inside the fixing cylinder. A flat plate is detachably connected to the bottom of the sliding shaft. The probe is correspondingly set at the bottom of the flat plate. A first hinge plate is hinged to the upper end of the sliding shaft. A handle is hinged to the other end of the first hinge plate. A second hinge plate is hinged to the hinge plate. The handle is fixedly connected to the second hinge plate.

2. The circuit board test fixture outer box according to claim 1, characterized in that: The bottom box is provided with multiple support rods, and a sleeve is slidably connected above the support rods. A first connecting plate is fixed above the sleeve. The first connecting plate is detachably connected to the support plate. Springs are sleeved on the outside of the sleeve and the support rods, and the springs support the connection between the first connecting plate and the bottom box.

3. The circuit board test fixture outer box according to claim 2, characterized in that: The first connecting plate and the support plate are connected by bolts.

4. The circuit board test fixture outer box according to claim 1, characterized in that: The bottom of the sliding shaft is provided with a second connecting plate, which is connected to the flat plate by bolts.

5. The circuit board test fixture outer box according to claim 1, characterized in that: The flat panel is made of transparent material.

6. The circuit board test fixture outer box according to claim 1, characterized in that: The mounting plate is mounted on the bottom box via support plates on both sides of its rear end.

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