Voltage test auxiliary device and voltage test fixture

Abstract

The utility model provides a voltage test auxiliary device which is used for assisting in testing the voltage of a circuit board and comprises a first fixing plate, a second fixing plate, a sliding block, an ejector pin, a fastening assembly and an external lead. During use, the circuit board is located between the first fixing plate and the second fixing plate, the voltage test auxiliary device can move longitudinally along the circuit board, and the sliding block can move transversely along the circuit board, so that the ejector pins can move transversely and longitudinally along the circuit board respectively, and the ejector pins can be aligned with test points of the circuit board. The circuit board is tightly pressed by the ejector pin through the fastening assembly, and the voltage test auxiliary device is fixed on the circuit board so as to assist in completing voltage test. The problem of test point damage caused by welding of an external lead is effectively avoided, and the service life of the circuit board is prolonged; the utility model further provides a voltage test fixture which comprises the voltage test auxiliary device.

Description

Technical Field

[0001] The present application relates to the technical field of voltage testing, and in particular to a voltage testing auxiliary device and a voltage testing fixture. Background Art

[0002] With the development of society and the progress of science and technology, X-ray flat panel detectors are widely used in the fields of medical impact and industrial flaw detection. When the flat panel detector is working, the voltage parameters of the circuit board can reflect the working status of the detector. Therefore, when the flat panel detector is abnormal, it is necessary to perform voltage tests on the test points on the circuit board of the flat panel detector to troubleshoot the cause of the detector failure.

[0003] When testing the voltage of a flat panel detector circuit board, it is usually necessary to weld external leads to the test points of the circuit board, and connect the external leads to the voltage test fixture to test the voltage of the circuit board. However, when welding the test points of the circuit board, it is easy to damage the test points of the circuit board, and the welded external leads are also easy to fall off. When welding the test points multiple times, the test points of the circuit board are easily damaged, which reduces the service life of the circuit board. Utility Model Content

[0004] The purpose of the present application is to provide a voltage test auxiliary device, which can effectively avoid the problem of test point damage caused by welding external leads, so as to protect the circuit board test points and extend the service life of the circuit board.

[0005] In order to achieve the above-mentioned purpose and other related purposes, the present application provides a voltage test auxiliary device, including:

[0006] A first fixing plate, located at a side where the test point of the circuit board is located;

[0007] A second fixing plate, located on a side of the circuit board away from the first fixing plate;

[0008] A sliding block connected to a side of the first fixing plate close to the second fixing plate, the sliding block being capable of moving laterally along the circuit board;

[0009] an ejector pin connected to a side of the sliding block close to the second fixing plate and spaced apart from the circuit board;

[0010] A fastening assembly is located on both sides of the circuit board in a lateral direction and is spaced apart from the circuit board, and two ends of the fastening assembly are respectively connected to the first fixing plate and the second fixing plate;

[0011] The external lead is connected to the ejector pin and extends to the outside of the voltage test auxiliary device.

[0012] Optionally, the first fixing plate is an insulating material plate, and the thickness of the first fixing plate is between 1 cm and 2 cm.

[0013] Optionally, a length of the first fixing plate along the transverse direction of the circuit board is greater than a width of the circuit board.

[0014] Optionally, the second fixing plate is an insulating elastic material plate, capable of elastically contacting the circuit board, and the thickness of the second fixing plate is between 1 cm and 2 cm;

[0015] Optionally, a length of the second fixing plate along the transverse direction of the circuit board is greater than a width of the circuit board.

[0016] Optionally, it is characterized in that a first through hole in a strip structure is provided in the first fixing plate, the longitudinal extension direction of the first through hole strip structure is the transverse direction of the circuit board, and the longitudinal length of the first through hole is greater than the width of the circuit board.

[0017] Optionally, the sliding block includes:

[0018] A sliding block body, located on a side of the first fixing plate close to the second fixing plate;

[0019] An end portion of the sliding block is located on a side of the first fixing plate away from the second fixing plate;

[0020] A connecting rod passes through the first through hole in the first fixing plate, and two ends of the connecting rod are respectively connected to the sliding block body and the end of the sliding block to slidably connect the sliding block to the first fixing plate.

[0021] Optionally, the sliding block is provided with a first mounting groove and a second through hole;

[0022] The opening of the first mounting groove faces the second fixing plate, and the ejector pin is connected to the sliding block through the first mounting groove;

[0023] The second through hole passes through the side wall of the first mounting groove, and the external lead is connected to the ejector pin through the second through hole.

[0024] Optionally, at least two third through holes are provided in the first fixing plate, and a fourth through hole coaxially arranged with the third through hole is provided in the second fixing plate, and the projections of the third through hole and the fourth through hole on the upper surface of the circuit board are located on both sides of the circuit board in the horizontal direction, and are spaced apart from the circuit board;

[0025] The fastening assembly includes a bolt and a nut. The bolt passes through the third through hole and the fourth through hole. The nut is located at one end of the bolt to cooperate with the bolt to clamp the first fixing plate and the second fixing plate.

[0026] The present application also provides a voltage test fixture suitable for circuit board voltage testing, comprising a voltage test device and a voltage test auxiliary device as described in any one of the aforementioned embodiments;

[0027] The voltage testing device is connected to the external lead in the voltage testing auxiliary device so that the voltage testing device is electrically connected to the testing point of the circuit board.

[0028] The voltage test auxiliary device and voltage test fixture provided by the present application have at least the following beneficial effects:

[0029] The voltage test auxiliary device of the present application has a circuit board located between a first fixed plate and a second fixed plate, and a fastening assembly is located on both sides of the circuit board in the horizontal direction, so that the voltage test auxiliary device can move longitudinally along the circuit board, and a sliding block is fixed on the first fixed plate and can move transversely along the circuit board, so that the ejector pin can respectively move in the transverse and longitudinal directions of the circuit board, so that the ejector pin is aligned with the test point of the circuit board, and the ejector pin is pressed against the circuit board by the fastening assembly, and the voltage test auxiliary device is fixed on the circuit board to assist in completing the voltage test, thereby effectively avoiding the problem of test point damage caused by welding external leads, improving the service life of the circuit board, and simplifying the test process of the circuit board; and the first fixed plate and the second fixed plate are both thin plates with small volume, which are easy to install and use, thereby improving the applicability of the voltage test auxiliary device, and the voltage test auxiliary device is easy to disassemble and maintain, and can be used repeatedly. The voltage test fixture provided by the present application includes any one of the voltage test auxiliary devices in the aforementioned embodiments, and therefore also has the beneficial effects of the aforementioned embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present application and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without paying creative work.

[0031] Figure 1 Shown is a structural schematic diagram of the voltage test auxiliary device provided in Example 1 of the present application.

[0032] Figure 2 Display as Figure 1 Right side view of the voltage test aid shown.

[0033] Figure 3 Display as Figure 1 A top view of the voltage test aid is shown.

[0034] Figure 4 Display as Figure 3 The voltage test auxiliary device is shown in a cross-sectional view along the AA' direction.

[0035] Figure 5 Display as Figure 1 The schematic diagram of the structure of the sliding block in the voltage test auxiliary device is shown.

[0036] Figure 6 Shown is a schematic diagram of the structure of the voltage test auxiliary device provided in Example 2 of the present application.

[0037] Figure 7 Display as Figure 6 The schematic diagram of the structure of the sliding block in the voltage test auxiliary device is shown.

[0038] Figure 8 Shown is a schematic diagram of the structure of the voltage testing fixture provided in Example 3 of the present application.

[0039] List of reference numerals:

[0040] 1 Voltage test auxiliary device 11 First fixing plate

[0041] 111 first through hole 112 third through hole

[0042] 12 Second fixing plate 121 Fourth through hole

[0043] 13 Sliding block 131 Sliding block body

[0044] 132 sliding block end 133 connecting rod

[0045] 134 first mounting groove 135 second through hole

[0046] 14 ejector pin 15 fastening assembly

[0047] 151 Bolt 152 Nut

[0048] 16 External lead 2 Circuit board

[0049] 3 Voltage test device DETAILED DESCRIPTION

[0050] In order to make the technical purpose, technical solution and technical effect of the present application clearer, the technical solution in the present application will be clearly and completely described in conjunction with the embodiments below. Obviously, the described embodiments are part of the embodiments of the present application, rather than all the embodiments. The components of the embodiments of the present application described and shown in the drawings here can be arranged and designed in various different configurations.

[0051] Therefore, the following detailed description of the embodiments of the present application is not intended to limit the scope of the present application for protection, but merely represents the selected embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative work are within the scope of protection of the present application. In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0052] In the description of the present application, it should be noted that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0053] In the description of the present application, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected" and "connected" should be understood in a broad sense, for example, it can be a fixed connection or a detachable connection. In addition, the description with reference to the terms "one embodiment", "some embodiments", "illustrative embodiments", "example", "specific example" or "some examples" means that the specific features, structures, materials or characteristics described in combination with the implementation or example are included in at least one implementation or example of the present application. In this specification, the schematic representation of the above terms does not necessarily refer to the same implementation or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more implementations or examples in a suitable scheme.

[0054] In the prior art, a test point is preset on the circuit board of the flat panel detector. When an abnormality occurs in the flat panel detector, an external lead is usually welded on the test point of the circuit board to test the voltage of the circuit board, and the cause of the circuit board failure is checked according to the test voltage. However, when welding the test point of the circuit board, it is found that the welding operation is easy to damage the test point, and the welded external lead is also easy to fall off. When the test point is welded multiple times, the test point of the circuit board is very easy to be damaged, which reduces the service life of the circuit board.

[0055] Since the circuit boards of detectors are mostly strip-shaped structures, based on the structure of the existing detector circuit boards, the present application provides a voltage test auxiliary device to solve the above defects in the prior art. The present application will be described in detail below through specific embodiments and in conjunction with the accompanying drawings.

[0056] Embodiment 1

[0057] This embodiment provides a voltage test auxiliary device 1 to solve the problem that the test points of the circuit board are easily damaged due to welding of external leads. Figure 1 The voltage test auxiliary device 1 of this embodiment includes a first fixing plate 11, a second fixing plate 12, a sliding block 13, a ejector pin 14, a fastening assembly 15, and an external lead 16.

[0058] In the voltage test auxiliary device 1 of this embodiment, refer to Figure 2 and Figure 3 The first fixing plate 11 and the second fixing plate 12 are respectively located on the upper and lower sides of the circuit board 2, and the fastening assembly 15 is located on both sides of the circuit board 2 in the horizontal direction, and is respectively connected to the first fixing plate 11 and the second fixing plate 12, so that the voltage test auxiliary device 1 can move along the longitudinal direction of the circuit board 2, and the sliding block 13 is connected to the first fixing plate 11 and can move laterally along the circuit board 2; the ejector pin 14 is connected to the sliding block 13, and the external lead 16 is connected to the ejector pin. When in use, the ejector pin 14 is driven to move laterally along the circuit board 2 by moving the sliding block 13, so that the ejector pin 14 is aligned with the test point, and the ejector pin 14 is brought into contact with the test point through the fastening assembly 15, and the voltage test auxiliary device is fixed on the circuit board 2 to assist in completing the voltage test of the circuit board 2.

[0059] The first fixing plate 11 is located at the side where the test point of the circuit board 2 is located. The first fixing plate 11 is provided with a first through hole 111 penetrating the upper and lower surfaces of the first fixing plate 11. The first through hole 111 is in a strip structure, and the extension direction of the strip structure of the first through hole 111 is the lateral direction of the circuit board 2. In this embodiment, the first through hole 111 in the strip structure is used as a sliding guide rail, and the connecting rod 133 slidably connects the sliding block 13 to the first fixing plate 11 through the first through hole 111, so that the sliding block 13 moves along the extension direction of the first through hole 111.

[0060] In an optional embodiment, the first fixing plate 11 is a rectangular plate-shaped structure, and the first fixing plate 11 is an insulating material plate, the thickness of the first fixing plate 11 is between 1 cm and 2 cm, and the length of the first fixing plate 11 along the horizontal direction of the circuit board 2 is greater than the width of the circuit board 2, so that the first fixing plate 11 meets the installation requirements; the first through hole 111 is a rectangular strip structure, and the length of the first through hole 111 in the longitudinal direction is greater than the width of the circuit board 2, and when in use, the projection of the first through hole 111 on the surface of the circuit board 2 completely cuts off the circuit board 2 in the horizontal direction of the circuit board 2. By controlling the thickness of the first fixing plate 11 and the length along the horizontal direction of the circuit board 2, the first fixing plate can have a smaller volume while meeting the installation requirements, so as to facilitate the installation of the first fixing plate 11 and improve the applicability of the voltage test auxiliary device 1. By controlling the length of the first through hole 111 in the longitudinal direction, the sliding block 13 has a larger moving range. It should be noted that the shape and structure of the first fixing plate 11 and the first through hole 111 can be adjusted according to actual needs, and this embodiment is not limited to this.

[0061] The second fixing plate 12 is arranged on a side of the circuit board 2 away from the first fixing plate 11, so that the circuit board 2 is located between the first fixing plate 11 and the second fixing plate 12. Therefore, when in use, the first fixing plate 11 and the second fixing plate 12 can be clamped by the fastening assembly 15 to fix the voltage test auxiliary device 1 on the circuit board 2.

[0062] In an optional embodiment, the second fixing plate 12 is an insulating elastic material plate. When in use, the second fixing plate 12 is in elastic contact with the circuit board 2 to protect the circuit board 2 and avoid friction damage to the circuit board 2; the second fixing plate 12 has a transverse length along the circuit board 2 that is greater than the width of the circuit board 2, and can cooperate with the first fixing plate 11 to meet the installation requirements of the fastening assembly 15; optionally, the thickness of the second fixing plate 12 is between 1 cm and 2 cm. By controlling the thickness of the second fixing plate 12, it can meet the use requirements while also meeting the installation requirements of the second fixing plate 12 when facing a narrow installation space, thereby improving the applicability of the voltage test auxiliary device.

[0063] The sliding block 13 is connected to a side of the first fixed plate 11 close to the second fixed plate 12, and the sliding block 13 can move along the lateral direction of the circuit board 2 through the first through hole 111; optionally, the sliding block 13 is slidably and fixedly connected to the first fixed plate 11 so that the sliding block 13 can slide while being fixed on the first fixed plate 11.

[0064] In this embodiment, refer to Figure 4The sliding block 13 includes a sliding block body 131, a sliding block end 132 and a connecting rod 133. The sliding block body 131 is located at one end of the sliding block 13 close to the second fixed plate 12, the sliding block end 132 is located at one end of the sliding block 13 away from the second fixed plate 12, the connecting rod 133 passes through the first through hole 111 in the first fixed plate 11, and the opposite ends of the connecting rod 133 are respectively connected to the first fixed plate 11 and the second fixed plate 12; by arranging the sliding block body 131 on the side of the first fixed plate 11 close to the second fixed plate 12, arranging the sliding block end 132 on the side of the first fixed plate 11 away from the second fixed plate 12, and making the connecting rod 133 located between the sliding block body 131 and the sliding block end 132 pass through the first through hole, the sliding block 13 can be slidably connected to the first fixed plate 11, and the sliding block 13 can be fixed on the first fixed plate 11.

[0065] In an alternative embodiment, reference Figure 5 The sliding block body 131 is a rectangular columnar structure, the sliding block end 132 is a rectangular plate-shaped structure, and the connecting rod 133 is a columnar structure. The two ends of the connecting rod 133 are fixedly connected to the sliding block end 132 and the sliding block body 131 respectively, and the axis of the connecting rod 133, the center line of the sliding block body 131 and the center line of the sliding block end 132 are all collinearly arranged. The height of the connecting rod 133 is greater than the thickness of the first fixed plate 11, so that the two ends of the connecting rod 133 can extend to the outside of the first through hole 111. In addition, the material of the sliding block body 131 is an insulating material; optionally, the height of the connecting rod 133 is between 1 cm and 2.5 cm, and the sliding block end 132 and the connecting rod 133 are made of the same material as the sliding block body 131; wherein the height of the connecting rod 133 is the distance between the sliding block end 132 and the sliding block body 131. It should be noted that the structures of the sliding block body 131, the sliding block end 132 and the connecting rod 133 can also be other structures, and the present embodiment is not limited thereto. For example, the sliding block body 131 can also be a cylindrical structure or other structures, the sliding block end 132 can be a circular plate structure or other structures, and the connecting rod 133 can be a rectangular columnar structure or other structures.

[0066] In this embodiment, refer to Figure 4The sliding block 13 is provided with a first mounting groove 134 and a second through hole 135. The opening of the first mounting groove 134 faces the second fixed plate 12. The structure and shape of the first mounting groove 134 match the ejector pin 14. The ejector pin 14 is connected to the sliding block 13 through the first mounting groove 134. Optionally, the ejector pin 14 is fixedly connected to the sliding block 13. The second through hole 135 passes through the side wall of the first mounting groove 134. The external lead 16 is connected to the ejector pin 14 through the second through hole 135 and is electrically connected to the ejector pin 14. Optionally, the first mounting groove 134 and the second through hole 135 are both located in the sliding block body 131. When the sliding block body 131 is made of insulating material, the ejector pin 14 and the external lead 16 can be electrically insulated from the sliding block 13.

[0067] In this embodiment, refer to Figure 1 , a third through hole 112 is provided in the first fixing plate 11, a fourth through hole 121 is provided in the second fixing plate 12, and the third through hole 112 is coaxially arranged with the fourth through hole 121, and the fastening assembly 15 is connected to the first fixing plate 11 and the second fixing plate 12 respectively through the third through hole 112 and the fourth through hole 121. Optionally, the number of the third through holes 112 is at least two, and the projections of the third through holes 112 on the upper surface of the circuit board 2 are located on both sides of the circuit board 2 in the horizontal direction, and are spaced apart from the circuit board 2 to facilitate the installation of the fastening assembly 15, and the fourth through hole 121 is arranged corresponding to the third through hole 112.

[0068] In an optional embodiment, the fastening assembly 15 includes a bolt 151 and a nut 152, wherein the bolt 151 passes through the third through hole 112 and the fourth through hole 121, and the nut 152 is disposed at one end of the bolt 151, and the nut 152 cooperates with the bolt 151 to clamp the first fixing plate 11 and the second fixing plate 12. The bolt 151 includes a screw rod and a head, wherein the head is located at one end of the screw rod, and the nut is disposed at the other end of the screw rod. When in use, the head of the bolt 151 can be located on a side of the first fixing plate 11 away from the second fixing plate 12, or can be located on a side of the second fixing plate 12 away from the first fixing plate 11, and the first fixing plate 11 and the second fixing plate 12 are located between the head of the bolt 151 and the nut 152, and the first fixing plate 11 and the second fixing plate 12 are fastened by rotating the bolt 151 or the nut 152.

[0069] The voltage test auxiliary device 1 of this embodiment, when in use, refers to Figure 1, place the first fixing plate 11 and the second fixing plate 12 on the upper and lower sides of the circuit board 2 respectively; a sliding block 13 is preset on the first fixing plate 11, and the ejector pin 14 is connected to the sliding block 13, and the external lead 16 is connected to the ejector pin 14 through the second through hole 135; install the fastening assembly 15, and set the ejector pin 14 and the circuit board 2 at a distance, move the voltage test auxiliary device 1 along the longitudinal direction of the circuit board 2, and move the sliding block 13 along the transverse direction of the circuit board 2, so that the ejector pin 14 is aligned with the test point of the circuit board 2; clamp the first fixing plate 11 and the second fixing plate 12 by the fastening assembly 15, so that the voltage test auxiliary device 1 is fixed on the circuit board 2. After completing the voltage test, the voltage test auxiliary device 1 can be removed by disassembling the fastening assembly 15.

[0070] In the voltage test auxiliary device 1 provided in the present embodiment, the first fixing plate 11 and the second fixing plate 12 are respectively arranged on the upper and lower sides of the circuit board 2, and the fastening components 15 are located on the two lateral sides of the circuit board 2, so that the voltage test auxiliary device 1 can move longitudinally along the circuit board 2, and the sliding block 13 is fixed on the first fixing plate 11 and can move transversely along the circuit board 2, so that the ejector pin 14 can move longitudinally and transversely along the circuit board 2 respectively to align with the test point of the circuit board 2; the fastening component 15 is used to make the ejector pin 14 press the test point, and the voltage test auxiliary device 1 is fixed on the circuit board 2 to assist in completing the voltage test of the circuit board 2, effectively avoiding the problem of damage to the test point caused by welding external leads, improving the service life of the circuit board, and simplifying the process of circuit board voltage testing; and because the first fixing plate 11 and the second fixing plate 12 are both small thin sheets, they are easy to install and use, and their applicability is improved. At the same time, the voltage test auxiliary device is easy to disassemble and maintain, and can be reused many times.

[0071] Embodiment 2

[0072] This embodiment provides another voltage test auxiliary device 1, which also includes a first fixing plate 11, a second fixing plate 12, a sliding block 13, a ejector pin 14, a fastening assembly 15, and an external lead 16. The same points as those in the first embodiment are not repeated here. The difference is that:

[0073] Reference Figure 6 The sliding block 13 includes a sliding block body 131, a sliding block end 132 and a connecting rod 133. The sliding block body 131 is located on a side of the first fixed plate 11 close to the second fixed plate 12, and the sliding block end 132 is located on a side of the first fixed plate 11 away from the second fixed plate 12. The connecting rod 133 passes through the first through hole 111, one end of the connecting rod 133 is connected to the sliding block body 131, and the other end passes through the sliding block end 132, so that the sliding block end 132 is sleeved on the end of the connecting rod 133 away from the sliding block body 131.

[0074] In an alternative embodiment, reference Figure 7 The end 132 of the sliding block is detachably fixedly connected to the connecting rod 133; when in use, the main body 131 of the sliding block is placed on the side of the first fixing plate 11 close to the second fixing plate 12, and the connecting rod 133 passes through the first through hole 111, and the end 132 of the sliding block is sleeved on the connecting rod 133, so that the sliding block 13 is slidably connected to the first fixing plate 11, which greatly facilitates the installation, use, and disassembly and maintenance of the sliding block 13. Optionally, the connecting rod 133 is a threaded rod, and the end 132 of the sliding block is a nut. By sleeved the nut on the threaded rod and rotating the nut, the sliding block 13 is slidably connected to the first fixing plate 11.

[0075] The voltage test auxiliary device 1 provided in this embodiment also includes a first fixed plate 11, a second fixed plate 12, a sliding block 13, a pin 14, a fastening assembly 15, and an external lead 16, and therefore also has the beneficial effects of the first embodiment; and, in the voltage test auxiliary device 1 of this embodiment, the connecting rod 133 of the sliding block 13 is detachably fixedly connected to the end 132 of the sliding block, which facilitates the installation, use, and disassembly and maintenance of the sliding block 13, improves the stability between the sliding block 13 and the first fixed plate 11, and avoids the pin 14 from shifting with the movement of the detector, thereby further improving the applicability and stability of the voltage test auxiliary device 1.

[0076] Embodiment 3

[0077] This embodiment provides a voltage test fixture suitable for circuit board voltage testing. Figure 8 The voltage testing fixture includes a voltage testing device 3 and any voltage testing auxiliary device 1 as described in the above embodiments.

[0078] In this embodiment, the voltage test device 3 is connected to the external lead 16 in the voltage test auxiliary device 1, so that the voltage test device 3 is electrically connected to the test point on the circuit board 2. When in use, the position of the voltage test auxiliary device 1 is adjusted along the longitudinal direction of the circuit board 2, and the position of the sliding block 13 is adjusted along the transverse direction of the circuit board 2, so that the ejector pin 14 contacts the test point; the voltage test auxiliary device 1 is fixed to the circuit board 2 by the fastening assembly 15, and the external lead 16 is connected to the voltage test device 3, and the voltage of the test point of the circuit board 2 is tested by the voltage test device 3.

[0079] The voltage test fixture provided in this embodiment includes any one of the voltage test auxiliary devices 1 in the aforementioned embodiments, and thus also has the beneficial effects of the aforementioned embodiments.

[0080] The above embodiments are merely illustrative of the principles and effects of the present application and are not intended to limit the present application. Anyone familiar with the technology may modify, change or combine the above embodiments without violating the spirit and scope of the present application. Therefore, all equivalent modifications or changes made by a person of ordinary skill in the art without departing from the spirit and technical ideas disclosed in the present application shall still be covered by the claims of the present application.

Claims

1. A voltage test auxiliary device, characterized in that: include: A first fixing plate, located at a side where the test point of the circuit board is located; A second fixing plate, located on a side of the circuit board away from the first fixing plate; A sliding block connected to a side of the first fixing plate close to the second fixing plate, the sliding block being capable of moving laterally along the circuit board; an ejector pin connected to a side of the sliding block close to the second fixing plate and spaced apart from the circuit board; A fastening assembly is located on both sides of the circuit board in a lateral direction and is spaced apart from the circuit board, and two ends of the fastening assembly are respectively connected to the first fixing plate and the second fixing plate; The external lead is connected to the ejector pin and extends to the outside of the voltage test auxiliary device.

2. The voltage test auxiliary device according to claim 1, characterized in that: The first fixing plate is an insulating material plate, and the thickness of the first fixing plate is between 1 cm and 2 cm.

3. The voltage test auxiliary device according to claim 1, characterized in that: The length of the first fixing plate along the transverse direction of the circuit board is greater than the width of the circuit board.

4. The voltage test auxiliary device according to claim 1, characterized in that: The second fixing plate is an insulating elastic material plate, which can be in elastic contact with the circuit board, and the thickness of the second fixing plate is between 1 cm and 2 cm.

5. The voltage test auxiliary device according to claim 1, characterized in that: The length of the second fixing plate along the transverse direction of the circuit board is greater than the width of the circuit board.

6. The voltage test auxiliary device according to claim 5, characterized in that: The first fixing plate is provided with a first through hole in a strip-shaped structure, the longitudinal extension direction of the first through hole strip-shaped structure is the transverse direction of the circuit board, and the longitudinal length of the first through hole is greater than the width of the circuit board.

7. The voltage test auxiliary device according to claim 1, characterized in that: The sliding block comprises: A sliding block body, located on a side of the first fixing plate close to the second fixing plate; An end portion of the sliding block is located on a side of the first fixing plate away from the second fixing plate; A connecting rod passes through the first through hole in the first fixing plate, and two ends of the connecting rod are respectively connected to the sliding block body and the end of the sliding block to slidably connect the sliding block to the first fixing plate.

8. The voltage test auxiliary device according to claim 1, characterized in that: The sliding block is provided with a first mounting groove and a second through hole; The opening of the first mounting groove faces the second fixing plate, and the ejector pin is connected to the sliding block through the first mounting groove; The second through hole passes through the side wall of the first mounting groove, and the external lead is connected to the ejector pin through the second through hole.

9. The voltage test auxiliary device according to claim 1, characterized in that: At least two third through holes are provided in the first fixing plate, and a fourth through hole is provided in the second fixing plate and is coaxially arranged with the third through hole. The projections of the third through hole and the fourth through hole on the upper surface of the circuit board are located on both sides of the circuit board in the horizontal direction and are spaced apart from the circuit board. The fastening assembly includes a bolt and a nut. The bolt passes through the third through hole and the fourth through hole. The nut is located at one end of the bolt to cooperate with the bolt to clamp the first fixing plate and the second fixing plate.

10. A voltage test fixture, suitable for circuit board voltage testing, characterized in that: It comprises a voltage testing device and a voltage testing auxiliary device as claimed in any one of claims 1 to 9; The voltage testing device is connected to the external lead in the voltage testing auxiliary device so that the voltage testing device is electrically connected to the testing point of the circuit board.

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