Tray for voltage withstanding detection of circuit board and multi-layer detection device

Abstract

The utility model provides a tray for voltage withstanding detection of a circuit board and a multi-layer detection device, and the tray body is provided with a containing groove, so that a to-be-detected core board, a first conducting strip connected with the to-be-detected core board and an external conducting strip can be stably placed on the tray body; the tray body is made of an insulating material, so that a plurality of tray bodies can be stacked and do not interfere with one another, a detection structure of multiple layers of to-be-detected core boards in the vertical direction can be formed, voltage withstanding detection can be carried out on the multiple to-be-detected core boards at the same time, the detection efficiency is greatly improved, and meanwhile, the occupied space of the circuit board is greatly saved; and the circuit board can be quickly moved, so that the overall detection time is shortened, the production field is saved, and the production and maintenance costs are reduced.

Description

Technical Field

[0001] The utility model relates to the field of circuit board detection, and more specifically to a tray and a multi-layer detection device for the withstand voltage detection of circuit boards. Background Art

[0002] In the electronic manufacturing industry, the withstand voltage detection of circuit boards is an important quality control and safety detection process, mainly used to detect and evaluate the insulation performance and withstand voltage ability of circuit boards.

[0003] At present, the withstand voltage detection of circuit boards usually adopts the method of laying several circuit boards flat, and applying voltages to the upper and lower sides of these flat circuit boards through detection equipment, so as to conduct insulation detection on several circuit boards simultaneously. However, this method requires a large operating space. In order to detect multiple circuit boards at the same time, larger detection equipment must be used. The large equipment is not only unfavorable to the layout and design of the factory, but also increases the difficulty of maintenance and management; the number of circuit boards is still limited in the operating space with a large detection area, and the movement of large-area circuit boards increases the path of the circuit boards being completely unloaded or completely loaded, thereby resulting in a relatively low overall detection efficiency. Summary of the Utility Model

[0004] The purpose of the utility model is to overcome the defects of the prior art and provide a tray and a multi-layer detection device for the withstand voltage detection of circuit boards, so as to solve the technical problems that the existing withstand voltage detection of circuit boards occupies a large space and has a relatively low detection efficiency.

[0005] In a first aspect, an embodiment of the utility model provides a tray for the withstand voltage detection of circuit boards, which includes: a tray body; a receiving groove is recessed at the top of the tray body, a first conductive sheet is arranged in the receiving groove, and there is a gap between the first conductive sheet and the top of the tray body, and the gap is used to receive a core board to be tested and an external conductive sheet; the depth of the receiving groove is greater than the thicknesses of the first conductive sheet and the core board to be tested; the tray body is made of an insulating material.

[0006] Wherein, it further includes: a second conductive sheet; the second conductive sheet protrudes from the bottom of the tray body and is fixedly connected to the tray body; the second conductive sheet is arranged opposite to the receiving groove and is parallel to the notch of the receiving groove; the thickness difference between the second conductive sheet, the core board to be tested and the first conductive sheet is greater than the depth of the receiving groove.

[0007] Wherein, the width of the second conductive sheet is less than the width of the receiving groove, and the length of the second conductive sheet is less than the length of the receiving groove.

[0008] Wherein, ear supports are further arranged on the tray body, and the ear supports are formed by extending outward from the top edge of the tray body.

[0009] Wherein, the width of the bottom of the tray body is greater than the width of the receiving groove and less than the width of the earpiece; and / or, the length of the bottom of the tray body is greater than the length of the receiving groove and less than the length of the earpiece.

[0010] Wherein, the first conductive sheet is arranged parallel to the notch of the receiving groove, and the first conductive sheet is fixedly connected to the inner wall of the receiving groove.

[0011] Wherein, the area of the first conductive sheet is less than or equal to the area of the core board to be measured; the area of the second conductive sheet is less than or equal to the area of the core board to be measured.

[0012] Wherein, most of the first conductive sheets and the second conductive sheet are conductive films; in the conductive state, the polarities of the first conductive sheet and the second conductive sheet are opposite.

[0013] In a second aspect, an embodiment of the present invention provides a multi-layer detection device, including a plurality of trays for withstand voltage detection of a circuit board and a plurality of core boards to be measured; the core boards to be measured are placed on one side of the first conductive sheet close to the top of the tray; the tops of the plurality of tray bodies face upward and are stacked in sequence from bottom to top; the second conductive sheet of the tray penetrates into the receiving groove of the adjacent tray and abuts against the core board to be measured in the receiving groove of the adjacent tray; the second conductive sheet is an external conductive sheet of the adjacent tray body.

[0014] Wherein, the multi-layer detection device further includes: a circulating conveyor line, a detection host, a sorting manipulator and a loading and unloading manipulator; the sorting manipulator and the loading and unloading manipulator are respectively located at both ends of the circulating conveyor line, and the detection host is located between the loading and unloading manipulator and the sorting manipulator; the detection host is used for pressing a plurality of the tray bodies and connecting the first conductive sheet and the second conductive sheet to perform withstand voltage detection on the core board to be measured; the sorting manipulator is used for driving the core board to be measured to move to a designated area; the circulating conveyor line is used for driving a plurality of the tray bodies stacked in sequence to move from the loading and unloading manipulator to the detection host and the sorting manipulator, and for driving a plurality of the tray bodies to move from the sorting manipulator to the loading and unloading manipulator.

[0015] The beneficial effects of the present utility model compared with the prior art are as follows: By providing a tray body with a receiving groove, the core board to be tested, the first conductive sheet connected to the core board to be tested, and the external conductive sheet can all be stably placed on the tray body; and the tray body is made of insulating material, which is conducive to stacking multiple tray bodies without interference, helps to form a detection structure for multiple core boards to be tested in the vertical direction, is conducive to realizing the withstand voltage detection of multiple core boards to be tested simultaneously, greatly improves the detection efficiency, at the same time greatly saves the occupied space of the circuit board, is conducive to the rapid movement operation of the circuit board, shortens the overall detection time, saves the production site, and reduces the production and maintenance costs.

[0016] The above description is only an overview of the technical solution of the present utility model. In order to understand the technical means of the present utility model more clearly, it can be implemented according to the content of the specification. And in order to make the above and other purposes, features and advantages of the present utility model more obvious and understandable, the following preferred embodiments are specifically described in detail as follows. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic structural diagram of a tray body for withstand voltage detection of a circuit board provided by the present utility model;

[0018] Figure 2 It is a schematic cross-sectional structural diagram of a tray body for withstand voltage detection of a circuit board provided by the present utility model;

[0019] Figure 3 It is an exploded structural diagram of a tray body for withstand voltage detection of a circuit board provided by the present utility model;

[0020] Figure 4 It is a connection diagram of tray bodies of a multi-layer detection device provided by the present utility model;

[0021] Figure 5 It is a front view structural diagram of a multi-layer detection device provided by the present utility model;

[0022] Figure 6 It is an overall structural diagram of a multi-layer detection device provided by the present utility model.

[0023] REFERENCE MARKS:

[0024] 1. Tray body; 11. Receiving groove; 12. Ear support; 2. First conductive sheet; 3. Second conductive sheet; 4. Core board to be tested; 5. Circulating conveyor line; 51. Loading line; 52. Return line; 6. Detection host; 7. Sorting manipulator; 8. Loading and unloading manipulator. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0025] In order to make the purpose, technical solutions and advantages of the present utility model more clear and understandable, the present utility model will be further described in detail below with reference to the accompanying drawings and specific embodiments. The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the drawings in the embodiments of the present utility model. Obviously, the described embodiments are some, but not all, of the embodiments of the present utility model. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0026] It should be understood that when used in this specification and the appended claims, the terms "comprising" and "including" indicate the presence of the described features, wholes, steps, operations, elements and / or components, but do not preclude the presence or addition of one or more other features, wholes, steps, operations, elements, components and / or their combinations.

[0027] It should also be understood that the terms used in the specification of the present utility model are only for the purpose of describing specific embodiments and are not intended to limit the present utility model. As used in the specification of the present utility model and the appended claims, unless the context clearly indicates otherwise, the singular forms "a", "an" and "the" are intended to include the plural forms.

[0028] Embodiment 1, as shown in Figures 1 - 3 A tray for withstand voltage detection of a circuit board is disclosed in this embodiment. It includes: a tray body 1; a receiving groove 11 is recessed at the top of the tray body 1, and a first conductive sheet 2 is arranged in the receiving groove 11. There is a gap between the first conductive sheet 2 and the top of the tray body 1 for receiving the core board 4 to be tested and an external conductive sheet; the depth of the receiving groove 11 is greater than the thicknesses of the first conductive sheet 2 and the core board 4 to be tested; the tray body 1 is made of an insulating material.

[0029] The depth of the receiving groove 11 is greater than the thicknesses of the first conductive sheet 2 and the core board 4 to be tested, so that after the receiving groove 11 receives the first conductive sheet 2 and the core board 4 to be tested, it can still receive the external conductive sheet, which is beneficial to forming a stable and independent structure to be tested for the tray body 1. In practical applications, the first conductive sheet 2 can be placed in the receiving groove 11, then the core board 4 to be tested is placed on the side of the first conductive sheet 2 close to the top of the tray body 1, and then the external conductive sheet is placed on the side of the core board 4 to be tested close to the top of the tray body 1.

[0030] In this embodiment, by providing a tray body 1 with a receiving groove 11, the core board 4 to be measured, the first conductive sheet 2 connected to the core board 4 to be measured, and the external conductive sheet can all be stably placed on the tray body 1. Moreover, the tray body 1 is made of an insulating material, which facilitates the stacking of multiple tray bodies 1 without interference from each other, helps to form a detection structure for multiple core boards 4 to be measured in the vertical direction, is conducive to realizing the withstand voltage detection of multiple core boards 4 to be measured simultaneously, greatly improves the detection efficiency, significantly saves the occupied space of the circuit board, facilitates the rapid movement operation of the circuit board, shortens the overall detection time, saves the production site, and reduces the production and maintenance costs.

[0031] Among them, the tray for the withstand voltage detection of the circuit board further includes: a second conductive sheet 3; the second conductive sheet 3 protrudes from the bottom of the tray body 1 and is fixedly connected to the tray body 1; the second conductive sheet 3 is disposed opposite to the receiving groove 11 and is arranged parallel to the notch of the receiving groove 11. When multiple tray bodies 1 are stacked in sequence, the second conductive sheet 3 enters the receiving groove 11 of the adjacent tray body 1 as an external conductive sheet, so that the second conductive sheet 3 and the first conductive sheet 2 in the adjacent tray body 1 contact the core board 4 to be measured from both sides, improving the space utilization rate; the cooperation between the receiving groove 11 and the second conductive sheet 3 helps to improve the alignment convenience during the stacking process of multiple tray bodies 1, is conducive to accelerating the loading speed of the core board 4 to be measured and the stacking speed of the tray body 1, so as to improve the overall detection efficiency.

[0032] Among them, the thickness difference between the second conductive sheet 3, the core board 4 to be measured, and the first conductive sheet 2 is greater than the depth of the receiving groove 11. This enables a part of the structure of the second conductive sheet 3 to still be exposed after it enters the receiving groove 11, which is conducive to connecting the second conductive sheet 3 to the detection host 6, and at the same time ensures that the second conductive sheet 3 can contact the core board 4 to be measured, avoiding a gap between the second conductive sheet 3 and the core board 4 to be measured, and leaving a deformation space for the second conductive sheet 3 to press down the core board 4 to be measured.

[0033] Among them, the width of the second conductive sheet 3 is smaller than the width of the receiving groove 11, and the length of the second conductive sheet 3 is smaller than the length of the receiving groove 11. In this embodiment, the receiving groove 11 is a square groove, which is suitable for circuit boards of different specifications and types, has good versatility and flexibility, and can meet different production requirements. In other embodiments, the shape of the receiving groove 11 can be adjusted according to actual needs. Among them, the width of the receiving groove 11 is the minimum width of the receiving groove 11, and the length of the receiving groove 11 is the minimum length of the receiving groove 11, so that the second conductive sheet 3 can enter the receiving groove 11.

[0034] Among them, the tray body 1 is also provided with ear supports 12, which are formed by extending outward from the top edge of the tray body 1. The ear supports 12 facilitate the grasping, handling and transfer of the tray body 1, which helps to improve the moving efficiency of the tray body 1; the ear supports 12 can also provide additional support space for other tray bodies 1 in the stacked state, which is helpful for maintaining balance and stability during the stacking process of multiple tray bodies 1; the ear supports 12 are arranged on the top of the tray body 1, so that there is a spacing between the bottom of the ear supports 12 and the top of the adjacent tray body 1, which is helpful for providing an operating space for the conduction of the first conductive sheet 2 and the external conductive sheet.

[0035] Among them, the width of the bottom of the tray body 1 is greater than the width of the receiving groove 11 and less than the width of the ear supports 12; and / or, the length of the bottom of the tray body 1 is greater than the length of the receiving groove 11 and less than the length of the ear supports 12. The tray body 1 is wider or longer than the receiving groove 11, so that the bottom of the tray body 1 cannot enter the receiving groove 11, which avoids the damage of the to-be-tested core board 4 caused by the direct pressure of the tray body on the to-be-tested core board 4.

[0036] Among them, the first conductive sheet 2 is arranged parallel to the notch of the receiving groove 11, and the first conductive sheet 2 is fixedly connected to the inner wall of the receiving groove 11. The first conductive sheet 2 and the second conductive sheet 3 are both horizontally placed, which is beneficial to forming a stable stacked structure of multiple tray bodies. The first conductive sheet 2 is fixed in the receiving groove 11, so that the feeding operation before detection only needs to place the to-be-tested core board 4 without placing the first conductive sheet 2, which greatly improves the feeding speed and helps to improve the overall detection efficiency.

[0037] Among them, the area of the first conductive sheet 2 is less than or equal to the area of the to-be-tested core board 4; the area of the second conductive sheet 3 is less than or equal to the area of the to-be-tested core board 4. The areas of the first conductive sheet 2 and the second conductive sheet 3 are less than or equal to the area of the to-be-tested core board 4, which avoids the short circuit of the loop caused by the contact between the first conductive sheet 2 and the second conductive sheet 3, and even may cause the internal current of the testing equipment to be too large and then damage the components of the testing equipment. The areas of the first conductive sheet 2 and the second conductive sheet 3 ensure the accuracy of the detection result and the safety of the system.

[0038] Among them, most of the first conductive sheets 2 and the second conductive sheets 3 are conductive films; in the conductive state, the polarities of the first conductive sheet 2 and the second conductive sheet 3 are opposite. In the actual application process, the first conductive sheet 2 is connected to the positive or negative pole of the detection circuit, and the second conductive sheet 3 is connected to the pole opposite to the first conductive sheet 2 in the detection circuit.

[0039] The tray body 1 is provided with a positioning assembly. In this embodiment, the inner wall of the tray body 1 is provided with first step teeth extending toward the top and changing step by step, and the bottom edge of the tray body 1 is provided with second step teeth corresponding to the first step teeth, that is, the positioning assembly is the first step teeth and the second step teeth, and the first step teeth have a guiding function to guide the tray body 1 toward the center. In other embodiments, the positioning assembly can use positioning columns and positioning grooves instead of the first step teeth and the second step teeth.

[0040] Example 2, see Figures 4 - 6 The present embodiment provides a multi-layer detection device, comprising: a plurality of trays for circuit board withstand voltage detection of the first embodiment and a plurality of core boards 4 to be tested; the core boards 4 to be tested are placed on the side of the first conductive sheet 2 close to the top of the tray; a plurality of tray bodies 1 are top-up and are stacked in sequence from bottom to top; the second conductive sheet 3 of the tray is passed through the receiving groove 11 of the adjacent tray and abuts against the core boards 4 to be tested in the receiving groove 11 of the adjacent tray; the second conductive sheet 3 is an external conductive sheet of the adjacent tray body 1.

[0041] Among them, the multi-layer detection device also includes: a circulating conveyor line 5, a detection host 6, a sorting robot 7 and a loading and unloading robot 8; the sorting robot 7 and the loading and unloading robot 8 are respectively located at the two ends of the circulating conveyor line 5, and the detection host 6 is located between the loading and unloading robot 8 and the sorting robot 7; the detection host 6 is used to press a number of tray bodies 1, and connect the first conductive sheet 2 and the second conductive sheet 3 to perform a pressure resistance test on the core board 4 to be tested; the sorting robot 7 is used to drive the core board 4 to be tested to move to a designated area; the circulating conveyor line 5 is used to drive a number of tray bodies 1 stacked in sequence to move from the loading and unloading robot 8 to the detection host 6 and the sorting robot 7, and to drive a number of tray bodies 1 from the sorting robot 7 to the loading and unloading robot 8; the circulating conveyor line 5 includes: a loading line 51 and a reflux line 52; the flow directions of the loading line 51 and the reflux line 52 are opposite.

[0042] The loading and unloading manipulator 8 is used to move the core board 4 to be tested into the receiving groove 11 of the tray body 1 and stack the loaded tray bodies 1. The loading line 51 moves the stacked multiple tray bodies 1 to the testing host 6; the testing host 6 presses the multiple tray bodies 1, and the testing host 6 is connected to the first conductive sheet 2 and the second conductive sheet 3 to perform a withstand voltage test on the core board 4 to be tested; after the testing is completed, the loading line 51 drives the stacked multiple tray bodies 1 to move to the sorting manipulator 7. The sorting manipulator 7 transfers the core boards that pass the test and those that fail the test to the designated areas respectively according to the test results, and moves the unloaded tray bodies 1 to the unloading line; the tray bodies 1 move to the loading and unloading manipulator 8 through the unloading line in sequence; the loading and unloading manipulator 8 recovers the tray bodies 1 on the unloading line. The recycling of the tray body 1 is realized through the circulating conveyor line 5, and the loading line 51, the unloading line, the loading and unloading manipulator 8 and the sorting manipulator 7 can operate simultaneously, so that the loading and unloading operations, the testing operations and the sorting work can be carried out simultaneously, greatly improving the testing efficiency and being applicable to the withstand voltage testing of a large number of circuit boards.

[0043] A tray and a multi-layer testing device for the withstand voltage testing of circuit boards in this embodiment. By setting a tray body with a receiving groove in the present utility model, the core board to be tested, the first conductive sheet connected to the core board to be tested and the external conductive sheet can all be stably placed on the tray body; and the tray body is made of an insulating material, which is conducive to stacking multiple tray bodies without interference, helps to form a testing structure for multiple core boards to be tested in the vertical direction, is conducive to realizing the simultaneous withstand voltage testing of multiple core boards to be tested, greatly improves the testing efficiency, simultaneously greatly saves the occupied space of the circuit boards, is conducive to the rapid movement operation of the circuit boards, shortens the overall testing time, and saves the production site, reducing the production and maintenance costs.

[0044] The above only uses the embodiment to further illustrate the technical content of the present utility model so that it is easier for readers to understand, but it does not mean that the implementation manner of the present utility model is limited to this. Any technical extension or re-creation made according to the present utility model is protected by the present utility model. The protection scope of the present utility model is subject to the claims.

Claims

1. A tray for withstand voltage detection of a circuit board, characterized in that, Comprising: A tray body; A receiving groove is concavely provided at the top of the tray body. A first conductive sheet is provided in the receiving groove. There is a gap between the first conductive sheet and the top of the tray body, and the gap is used to receive a core board to be tested and an external conductive sheet. The depth of the receiving groove is greater than the thicknesses of the first conductive sheet and the core board to be tested. The tray body is made of an insulating material.

2. The tray for withstand voltage detection of a circuit board according to claim 1, wherein, Further comprising: A second conductive sheet; the second conductive sheet protrudes from the bottom of the tray body and is fixedly connected to the tray body. The second conductive sheet is disposed opposite to the receiving groove and is parallel to the notch of the receiving groove. The thickness difference between the second conductive sheet, the core board to be tested and the first conductive sheet is greater than the depth of the receiving groove.

3. The tray for withstand voltage detection of a circuit board according to claim 2, characterized in that, The width of the second conductive sheet is less than the width of the receiving groove, and the length of the second conductive sheet is less than the length of the receiving groove.

4. The tray for withstand voltage detection of a circuit board according to claim 3, characterized in that, An earrest is further provided on the tray body, and the earrest is formed by extending outward from the top edge of the tray body.

5. The tray for withstand voltage detection of a circuit board according to claim 4, wherein The width of the bottom of the tray body is greater than the width of the receiving groove and less than the width of the earrest; and / or, the length of the bottom of the tray body is greater than the length of the receiving groove and less than the length of the earrest.

6. The tray for withstand voltage detection of a circuit board according to claim 2, wherein, The first conductive sheet is parallel to the notch of the receiving groove, and the first conductive sheet is fixedly connected to the inner wall of the receiving groove.

7. The tray for withstand voltage detection of a circuit board according to claim 6, wherein, The area of the first conductive sheet is less than or equal to the area of the core board to be tested; the area of the second conductive sheet is less than or equal to the area of the core board to be tested.

8. The tray for withstand voltage detection of a circuit board according to claim 6, wherein Most of the first conductive sheets and the second conductive sheet are conductive films; in a conductive state, the polarities of the first conductive sheet and the second conductive sheet are opposite.

9. A multi-layer detection device, characterized in that, A plurality of trays for voltage withstand detection of a circuit board according to any one of claims 2-8 and a plurality of core boards to be tested; the core boards to be tested are placed on one side of the first conductive sheet close to the top of the tray; the tops of a plurality of the tray bodies face upward and are stacked in sequence from bottom to top; the second conductive sheet of the tray penetrates into the receiving groove of the adjacent tray and abuts against the core board to be tested in the receiving groove of the adjacent tray; the second conductive sheet is an external conductive sheet of the adjacent tray body.

10. The multi-layer detection device according to claim 9, wherein Further comprising: A circulating conveyor line, a detection host, a sorting manipulator and a loading and unloading manipulator; the sorting manipulator and the loading and unloading manipulator are respectively located at both ends of the circulating conveyor line, and the detection host is located between the loading and unloading manipulator and the sorting manipulator; the detection host is used to press a plurality of the tray bodies and connect the first conductive sheet and the second conductive sheet to perform a voltage withstand test on the core board to be tested; the sorting manipulator is used to drive the core board to be tested to move to a designated area; the circulating conveyor line is used to drive a plurality of the tray bodies stacked in sequence to move from the loading and unloading manipulator to the detection host and the sorting manipulator, and is used to drive a plurality of the tray bodies to move from the sorting manipulator to the loading and unloading manipulator.

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