CN220438420U - Tester casing and high-voltage tester - Google Patents

Abstract

The utility model provides a tester shell and a high-voltage tester, which belong to the technical field of circuit board production. The bottom of the shell is provided with a slot, the slot is communicated with the installation chamber, a pluggable dampproof piece is arranged in the slot, and when the dampproof piece is inserted into the installation chamber through the slot, the installation chamber is separated from the radiating hole. The tester shell can separate the installation chamber from the radiating holes through the moistureproof piece, so that moisture is prevented from entering the installation chamber to cause the test main body to be damped, and the test main body can work normally and stably.

Description

Tester casing and high-voltage tester

Technical Field

The utility model relates to the technical field of circuit board production, in particular to a tester shell and a high-voltage tester.

Background

Along with the progress of technology, the technology of circuit boards is also continuously developed, and the application of the circuit boards is also becoming wider and wider. During the manufacturing process of the circuit board, hidden defects such as poor insulation, short circuit and the like may exist. These problems may cause malfunction of the circuit board during use and even cause safety accidents such as fire. Therefore, after the PCB board is manufactured, a high voltage test is required to ensure the safety and reliability of the circuit board. The high voltage test is to apply a high voltage to a circuit board to test whether the circuit board has problems such as poor insulation and short circuit. During testing, the circuit board is placed in the tester chassis and a high voltage is applied to perform the test.

The existing test instrument is usually connected with a high-voltage test system by a test main body, so that the test of the circuit board is realized. The test main body is placed inside the shell, and the shell protects the test main body. However, the existing tester casing device is provided with the vent holes for heat dissipation, so that the sealing performance of the casing is poor due to the existence of the vent holes, and a test main body inside the casing is easy to be affected with damp. Especially in areas with more humid climate, this phenomenon of wetting is more pronounced.

The case of the tester after being wetted is easy to have the condition of circuit breaking, so that the tester cannot work normally. Therefore, there is a need for improvements to existing circuit board tester enclosures to overcome the disadvantages of the existing test instruments that are prone to moisture.

Disclosure of Invention

In order to overcome the problems in the related art, one of the objects of the present utility model is to provide a tester housing, which can separate the installation chamber from the heat dissipation hole through a moisture-proof member, so as to prevent moisture from entering the installation chamber to cause the test body to be wet, and ensure that the test body can work normally and stably.

The tester shell comprises a shell body, wherein an installation chamber for installing a test main body is formed in the middle of the shell body, and a plurality of radiating holes are formed in the left side wall and the right side wall of the shell body;

the shell bottom is equipped with the slot, the slot with the installation room intercommunication is equipped with pluggable dampproofing spare in the slot, works as dampproofing spare passes through the slot inserts the installation room will the installation room with the louvre separates.

In a preferred technical scheme of the utility model, a guide groove is arranged in the shell, and the guide groove is positioned on the plane of the slot.

In a preferred technical scheme of the utility model, a guide plate is arranged on the inner wall of the shell, and the guide plate is arranged on the inner wall of the shell along the height direction of the shell; the guide plates are two, and the guide grooves are formed between the two guide plates and the inner wall of the shell.

In a preferred technical scheme of the utility model, the moistureproof piece comprises a first moistureproof plate and a limiting plate, wherein the height of the first moistureproof plate is the same as that of the installation chamber, the limiting plate is arranged at the bottom of the first moistureproof plate, and when the moistureproof piece is inserted into the slot, the limiting plate completely covers the slot.

In a preferred technical scheme of the utility model, the thickness of the first moisture-proof plate is matched with the width of the guide groove.

In the preferred technical scheme of the utility model, two slots are arranged at the bottom of the shell, and the two slots are respectively arranged close to the left side wall and the right side wall of the shell;

the dampproofing piece includes two parallel second dampproofing boards and backup pad that set up, the backup pad sets up two the bottom of second dampproofing board, with second dampproofing board fixed connection.

In the preferred technical scheme of the utility model, the second dampproof plate is provided with a detachable limit strip, the limit strip penetrates through the second dampproof plate along the thickness direction of the second dampproof plate, and the end part of the limit strip is exposed out of the second dampproof plate.

In the preferred technical scheme of the utility model, the front side wall of the shell is provided with a display installation position, and the rear side wall is provided with a plurality of wiring ports.

It is a second object of the present utility model to provide a high voltage tester comprising a test body and a tester housing as described above, said test body being arranged inside said tester housing.

The beneficial effects of the utility model are as follows:

the utility model provides a tester shell, which comprises a shell, wherein an installation chamber for installing a test main body is formed in the middle of the shell, and a plurality of radiating holes are formed in the left side wall and the right side wall of the shell. The bottom of the shell is provided with a slot, the slot is communicated with the installation chamber, a pluggable dampproof piece is arranged in the slot, and when the dampproof piece is inserted into the installation chamber through the slot, the installation chamber is separated from the radiating hole. In the use, if be in the humid environment, pause the use of tester, then insert the mounting chamber with dampproofing spare through the slot to make dampproofing spare separate mounting chamber and louvre, thereby in making external steam get into the mounting chamber through the louvre in blocked by dampproofing spare, thereby guarantee that test main part does not invade by steam, guarantee test main part internal circuit's insulating strength, place test main part's circuit short circuit, thereby guarantee that test main part can normally steady operation.

The application also provides a high-voltage tester comprising the tester shell, wherein the tester is stable in work, not easy to wet and long in service life.

Drawings

FIG. 1 is a perspective view of a tester housing provided by the present utility model;

FIG. 2 is a front view of the interior of a tester housing provided by the present utility model;

FIG. 3 is a perspective view of the rear side wall view of the tester case provided by the present utility model;

FIG. 4 is a schematic view of the structure of the first moisture barrier including the first moisture barrier mated with the housing provided by the present utility model;

fig. 5 is a schematic view showing the structure of the second moisture-proof plate and the case.

Reference numerals:

1. a housing; 11. a heat radiation hole; 12. a right side wall; 13. a display mounting location; 14. a left side wall; 15. a mounting chamber; 16. a wiring port; 2. a slot; 3. a guide groove; 31. a guide plate; 41. a first moisture barrier; 42. a limiting plate; 51. a second moisture barrier; 52. a support plate; 53. and a limit strip.

Detailed Description

Preferred embodiments of the present utility model will be described in more detail below with reference to the accompanying drawings. While the preferred embodiments of the present utility model are shown in the drawings, it should be understood that the present utility model may be embodied in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the utility model to those skilled in the art.

The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the utility model. As used in this specification and the appended claims, the singular forms "a," "an," and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It should also be understood that the term "and/or" as used herein refers to and encompasses any or all possible combinations of one or more of the associated listed items.

It should be understood that although the terms "first," "second," "third," etc. may be used herein to describe various information, these information should not be limited by these terms. These terms are only used to distinguish one type of information from another. For example, first information may also be referred to as second information, and similarly, second information may also be referred to as first information, without departing from the scope of the utility model. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the present utility model, the meaning of "a plurality" is two or more, unless explicitly defined otherwise.

Examples

The circuit board enables the circuit to be miniaturized and visualized, and plays an important role in mass production of fixed circuits and optimization of the layout of electrical appliances. In the production process of the circuit board, because of the limitations of the production process and the equipment conditions, defects such as certain scratches, concave-convex points and the like are inevitably caused on part of products, and the defects not only can cause certain influence on the appearance of the circuit board, but also can even influence the performance of the circuit board in serious cases. If the scratch is too deep, the internal circuit of the circuit board is affected, so that the circuit board cannot realize normal circuit intercommunication, and therefore, the circuit board needs to be detected in the production process.

Along with the progress of technology, the technology of circuit boards is also continuously developed, and the application of the circuit boards is also becoming wider and wider. During the manufacturing process of the circuit board, hidden defects such as poor insulation, short circuit and the like may exist. These problems may cause malfunction of the circuit board during use and even cause safety accidents such as fire. Therefore, after the PCB board is manufactured, a high voltage test is required to ensure the safety and reliability of the circuit board. The high voltage test is to apply a high voltage to a circuit board to test whether the circuit board has problems such as poor insulation and short circuit. During testing, the circuit board is placed in the tester chassis and a high voltage is applied to perform the test.

The existing test instrument is usually connected with a high-voltage test system by a test main body, so that the test of the circuit board is realized. The test main body is placed inside the shell, and the shell protects the test main body. However, the existing tester casing device is provided with the vent holes for heat dissipation, so that the sealing performance of the casing is poor due to the existence of the vent holes, and a test main body inside the casing is easy to be affected with damp. Especially in areas with more humid climate, this phenomenon of wetting is more pronounced. The case of the tester after being wetted is easy to have the condition of circuit breaking, so that the tester cannot work normally. Accordingly, the present application provides a novel tester housing that overcomes the shortcomings of the prior art.

As shown in fig. 1-5, the tester casing comprises a casing 1, wherein an installation chamber 15 for installing a test main body is formed in the middle of the casing 1, and a plurality of heat dissipation holes 11 are formed in the left side wall 14 and the right side wall 12 of the casing 1;

the bottom of the shell 1 is provided with a slot 2, the slot 2 is communicated with the installation chamber 15, the slot 2 is internally provided with a pluggable dampproof piece, and when the dampproof piece is inserted into the installation chamber 15 through the slot 2, the installation chamber 15 is separated from the heat dissipation hole 11.

Specifically, the housing 1 is assembled from aluminum alloy plates detachably attached to each other, and the assembled housing 1 has a rectangular parallelepiped structure. The housing 1 has a front, a back, a top, a bottom, a left side wall 14, a right side wall 12. The front is the front side wall of casing 1, and the front side wall is equipped with display mount pad 13, and the back side wall is equipped with a plurality of wiring mouth 16. The front side wall can be used for installing a display screen, various operation keys and operation panels, and the rear side wall is used for wiring. When the tester body is placed in the mounting room 15, the high voltage test system of the circuit board can be connected through the wiring port 16 of the rear side wall, and test data can be fed back through the display of the front side wall.

In the embodiment, the heat dissipation holes 11 are provided in plurality along the length direction of the left and right side walls 14, 12 in the left and right side walls 14, 12, and the length direction of the slot 2 is the same as the length direction of the heat dissipation holes 11.

In practical applications, the use of high pressure testers is typically done in a relatively dry environment, where moisture protection is not required. However, after the use, when the high-voltage tester is idle, water vapor may invade the tester, resulting in the wetting of the test body. The water vapor is generally introduced into the housing 1 of the tester through the heat dissipation holes 11. This application is through setting up of dampproofing spare, when not using the tester, in passing through slot 2 male installation room 15 of casing 1 with dampproofing spare to reach the purpose with steam completely separate. The mounting holes of the front side wall and the rear side wall of the shell 1 are completely occupied by the devices, so that the mounting holes of the front side wall and the rear side wall of the shell 1 do not need to be provided with moisture-proof pieces.

In the above-mentioned tester case, the middle part of the housing 1 of the tester case forms the installation chamber 15 for installing the test body, and the left side wall 14 and the right side wall 12 of the housing 1 are provided with a plurality of heat dissipation holes 11. The bottom of the shell 1 is provided with a slot 2, the slot 2 is communicated with the installation chamber 15, a pluggable dampproof piece is arranged in the slot 2, and when the dampproof piece is inserted into the installation chamber 15 through the slot 2, the installation chamber 15 is separated from the radiating hole 11. In the use, if be in the humid environment, pause the use of tester, then insert the mounting chamber 15 with dampproofing spare through slot 2, and make dampproofing spare separate mounting chamber 15 and louvre 11, thereby make external steam be stopped by dampproofing spare in when getting into mounting chamber 15 through louvre 11, thereby guarantee that the test main part does not receive the steam invasion, guarantee test main part internal circuit's insulating strength, place test main part's circuit short circuit, thereby guarantee that the test main part can normally work steadily.

Further, a guiding groove 3 is arranged in the shell 1, and the guiding groove 3 is located on the plane of the slot 2. More specifically, the inner wall of the housing 1 is provided with a guide plate 31, and the guide plate 31 is provided on the inner wall of the housing 1 in the height direction of the housing 1; the number of the guide plates 31 is two, and the guide grooves 3 are formed between the two guide plates 31 and the inner wall of the shell 1.

The guide groove 3 serves to guide the movement of the moisture barrier in the installation chamber 15. The length direction of the guide groove 3 is set along the height direction of the housing 1. Specifically, the two opposite ends of each slot 2 along the length direction are provided with the guide grooves 3, so that the guide grooves 3 can guide and limit the movement of the moistureproof piece from the two sides of the moistureproof piece. In a preferred embodiment, the moisture barrier can be retained within the mounting chamber 15 when inserted into the mounting chamber 15 through the slot 2, ensuring that the test body within the mounting chamber 15 is separated from the heat sink 11.

In one embodiment, the moisture-proof member includes a first moisture-proof plate 41 and a limiting plate 42, the height of the first moisture-proof plate 41 is the same as the height of the installation chamber 15, the limiting plate 42 is disposed at the bottom of the first moisture-proof plate 41, and when the moisture-proof member is inserted into the slot 2, the limiting plate 42 completely covers the slot 2. More preferably, the thickness of the first moisture-proof plate 41 is adapted to the width of the guide groove 3.

The first moisture-proof plate 41 is a cuboid plastic plate, and the limiting plate 42 is fixed behind the first moisture-proof plate 41 and is perpendicular to the first moisture-proof plate 41. The limiting plate 42 can limit the first moisture-proof plate 41 outside the housing 1, and can prevent moisture from entering the installation chamber 15 from the slot 2.

In another embodiment, two slots 2 are disposed at the bottom of the housing 1, and the two slots 2 are disposed near the left side wall 14 and the right side wall 12 of the housing 1, respectively;

the dampproof piece comprises two second dampproof plates 51 and a supporting plate 52 which are arranged in parallel, and the supporting plate 52 is arranged at the bottoms of the two second dampproof plates 51 and fixedly connected with the second dampproof plates 51.

The two second moisture-proof plates 51 and the support plate 52 form an integral structure, and the moisture-proof member of the present embodiment can form a support for the housing 1 by using the support plate 52 as a leg of the housing 1, in addition to being capable of being inserted into the installation chamber 15 through the second moisture-proof plates 51 for preventing a groove.

Still further, the second moisture-proof plate 51 is provided with a detachable limit bar 53, the limit bar 53 penetrates through the second moisture-proof plate 51 along the thickness direction of the second moisture-proof plate 51, and the end part of the limit bar 53 is exposed out of the second moisture-proof plate 51. The limiting strip 53 can be perpendicular to the surface of the second moisture-proof plate 51, the limiting strip 53 can be clamped with the surface of the second moisture-proof plate 51, and the limiting strip 53 is used for limiting the supporting height of the second moisture-proof plate 51 to the shell 1, so that the shell 1 can be used at a proper angle.

The application also provides a high voltage tester comprising a test body and a tester housing as described above, the test body being disposed inside the tester housing. The tester works stably, is not easy to wet, and has longer service life.

The relative arrangement of the components and steps, numerical expressions and numerical values set forth in these embodiments do not limit the scope of the present application unless it is specifically stated otherwise. Meanwhile, it should be understood that the sizes of the respective parts shown in the drawings are not drawn in actual scale for convenience of description. Techniques, methods, and apparatus known to one of ordinary skill in the relevant art may not be discussed in detail, but should be considered part of the specification where appropriate. In all examples shown and discussed herein, any specific values should be construed as merely illustrative, and not a limitation. Thus, other examples of the exemplary embodiments may have different values. It should be noted that: like reference numerals and letters denote like items in the following figures, and thus once an item is defined in one figure, no further discussion thereof is necessary in subsequent figures. The foregoing description of the preferred embodiments of the utility model is merely exemplary in nature and is in no way intended to limit the utility model,

various modifications and variations of the present utility model will be apparent to those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model should be included in the protection scope of the present utility model.

Claims (9)

1. The utility model provides a tester casing, includes casing (1), casing (1) middle part forms install room (15) that are used for installing test main part, left side wall (14), right side wall (12) of casing (1) all are provided with a plurality of louvres (11), its characterized in that:

the shell body (1) bottom is equipped with slot (2), slot (2) with install room (15) intercommunication, be equipped with the dampproofing piece of pluggable in slot (2), work as dampproofing piece passes through slot (2) inserts install room (15), will install room (15) with louvre (11) separates.

2. The tester housing of claim 1, wherein:

the shell (1) is internally provided with a guide groove (3), and the guide groove (3) is positioned on the plane of the slot (2).

3. The tester housing of claim 2, wherein:

the inner wall of the shell (1) is provided with a guide plate (31), and the guide plate (31) is arranged on the inner wall of the shell (1) along the height direction of the shell (1); the guide plates (31) are arranged in two, and guide grooves (3) are formed between the two guide plates (31) and the inner wall of the shell (1).

4. A tester housing according to claim 3, wherein:

the dampproof piece comprises a first dampproof plate (41) and a limiting plate (42), the height of the first dampproof plate (41) is the same as that of the installation chamber (15), the limiting plate (42) is arranged at the bottom of the first dampproof plate (41), and when the dampproof piece is inserted into the slot (2), the limiting plate (42) completely covers the slot (2).

5. The tester housing of claim 4, wherein:

the thickness of the first moisture-proof plate (41) is matched with the width of the guide groove (3).

6. The tester housing of claim 5, wherein:

the two slots (2) are arranged at the bottom of the shell (1), and the two slots (2) are respectively arranged close to the left side wall (14) and the right side wall (12) of the shell (1);

the dampproof piece comprises two second dampproof plates (51) and a supporting plate (52) which are arranged in parallel, and the supporting plate (52) is arranged at the bottoms of the two second dampproof plates (51) and fixedly connected with the second dampproof plates (51).

7. The tester housing of claim 6, wherein:

be equipped with detachable spacing (53) on second dampproof board (51), spacing (53) are followed thickness direction of second dampproof board (51) runs through second dampproof board (51), and the tip exposes outside second dampproof board (51).

8. The tester housing of claim 1, wherein:

the front side wall of the shell (1) is provided with a display installation position (13), and the rear side wall is provided with a plurality of wiring ports (16).

9. A high voltage tester, characterized in that: comprising a test body and a tester housing according to any one of claims 1 to 8, said test body being arranged inside said tester housing.