Protection device and test system for circuit boards

Abstract

The utility model discloses a protection device and test system of circuit board. The protection device of circuit board includes: circuit board, insulating casing, the insulating casing includes upper shell and lower shell, the upper shell and the lower shell form the containing space between, and the circuit board is clamped between the upper shell and the lower shell and is located in the containing space, connecting piece, the connecting piece is worn the upper shell and the circuit board after with the lower shell fixed connection. Through utilize the connecting piece from the upper and lower direction in proper order wear the upper shell and the circuit board after with the lower shell and connect, make the upper shell and the lower shell exert the clamping force to the circuit board, still make the circuit board reliably fixed in the containing space between the upper shell and the lower shell, realized the insulation protection and fixed role to the circuit board, and the upper shell and the lower shell realize detachable connection, be favorable to the disassembly and maintenance of circuit board.

Description

Technical Field

[0001] This utility model relates to the field of circuit board mounting technology, and in particular to a circuit board protection device and testing system. Background Technology

[0002] In the prior art, after the circuit board is designed and formed, protective facilities are usually not considered for ease of use, leaving the circuit board in an almost bare state. In actual use, when the circuit board is connected and assembled with other resources, external force contact or pressing can damage the printed circuit board, and contact with high-voltage devices poses a safety hazard of electric shock. At the same time, the bare circuit board will result in a poor user experience and indirectly increase the difficulty of operation. Utility Model Content

[0003] This utility model aims to solve at least one of the technical problems existing in the prior art. To this end, this utility model proposes a circuit board protection device that not only applies clamping force to the circuit board simultaneously with the upper and lower shells, but also reliably fixes the circuit board in the receiving space between the upper and lower shells, thus achieving insulation protection and fixation of the circuit board.

[0004] This utility model further proposes a testing system.

[0005] A circuit board protection device according to a first aspect of the present invention includes: a circuit board; an insulating housing, the insulating housing including an upper shell and a lower shell, a receiving space being formed between the upper shell and the lower shell, and the circuit board being sandwiched between the upper shell and the lower shell and located in the receiving space; and a connector, the connector passing through the upper shell and the circuit board and being fixedly connected to the lower shell.

[0006] According to the embodiment of the present invention, the circuit board protection device clamps the circuit board between the upper and lower shells, thereby insulating and holding the circuit board without contacting the components on the circuit board. Furthermore, by using a connector to pass through the upper shell and the circuit board sequentially from top to bottom and connecting them to the lower shell, the upper and lower shells apply a clamping force to the circuit board while reliably fixing the circuit board within the accommodating space between the upper and lower shells. This achieves the insulation protection and fixation of the circuit board. At the same time, the upper and lower shells are detachably connected, which is beneficial for the disassembly and maintenance of the circuit board.

[0007] According to some embodiments of the present invention, the upper shell is provided with a first connecting part, the lower shell is provided with a second connecting part and a positioning part, the circuit board is provided with a third connecting part and a mating part, the positions of the first connecting part, the second connecting part and the third connecting part correspond one-to-one, the mating part mates with the positioning part, and the connecting member passes through the first connecting part and the third connecting part and connects with the second connecting part.

[0008] According to some embodiments of the present invention, the upper shell includes a top plate, and the top plate is provided with a first connecting portion on the side facing the lower shell. The lower shell includes a bottom plate, and the bottom plate is provided with a second connecting portion on the side facing the upper shell. Both the first connecting portion and the second connecting portion are connecting posts, and a connecting hole that mates with the connecting member is formed in the middle of the connecting post.

[0009] According to some embodiments of the present invention, the upper shell is provided with the first connecting portion at its four corners and the remaining portion of the upper shell excluding the four corners is provided with at least one first connecting portion, and the lower shell is provided with at least one second connecting portion at its four corners and the remaining portion of the lower shell excluding the four corners.

[0010] According to some embodiments of the present invention, in the vertical direction of the insulating shell, the thickness of the first connecting portion is greater than the thickness of the second connecting portion.

[0011] According to some embodiments of the present invention, a support portion is provided on the side of the lower shell facing the upper shell, the support portion extends along the length direction and / or width direction of the lower shell, and the circuit board abuts against the upper part of the support portion.

[0012] According to some embodiments of the present invention, the circuit board includes multiple functional modules, and the upper shell is provided with multiple visualization windows, the multiple visualization windows overlapping at least a portion of the functional modules.

[0013] According to some embodiments of the present invention, the circuit board includes a power control module, an alarm indication module, a functional device interface module, and a display control module, and a plurality of the visualization windows are arranged to overlap at least with the alarm indication module, the functional device interface module, and the display control module.

[0014] According to some embodiments of the present invention, the surface of the upper shell is provided with a plurality of touch indicator keys for signal transmission with the circuit board; wherein, the surface of the upper shell is formed with a groove structure or a protrusion structure to form the touch indicator keys.

[0015] The testing system according to a second aspect of the present invention includes a display screen, functional devices, a power supply module, and a protection device for the circuit board. The display screen and the functional devices are respectively connected to the circuit board, and the power supply module is connected to the circuit board.

[0016] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0017] The above and / or additional aspects and advantages of this utility model will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which: Figure 1 This is a schematic diagram of the structure of the circuit board protection device according to an embodiment of the present utility model; Figure 2 This is a schematic diagram of the structure of the circuit board protection device according to an embodiment of the present utility model; Figure 3 This is a schematic diagram of the structure of a circuit board protection device according to an embodiment of the present utility model.

[0018] Figure label: 100. Circuit board protection device; 1. Circuit board; 11. Alarm indicator module; 12. Functional device interface module; 13. Display control module; 2. Insulating housing; 21. Upper shell; 2101. Visual window; 2102. First connecting part; 2103. Top plate; 22. Lower shell; 2201. Second connecting part; 2202. Bottom plate; 2203. Support part; 23. Accommodation space; 24. Touch indicator key; 200. Display screen. Detailed Implementation

[0019] The embodiments of the present invention are described in detail below. The embodiments described with reference to the accompanying drawings are exemplary. The embodiments of the present invention are described in detail below.

[0020] The following is for reference. Figures 1-3 A protection device for a circuit board according to a first aspect embodiment of the present invention is described.

[0021] like Figures 1-3 As shown, the circuit board protection device 100 includes: a circuit board 1, an insulating housing 2, and a connector. The insulating housing 2 includes an upper housing 21 and a lower housing 22, with a receiving space 23 formed between the upper housing 21 and the lower housing 22. The circuit board 1 is sandwiched between the upper housing 21 and the lower housing 22 and is located in the receiving space 23. The connector passes through the upper housing 21 and the circuit board 1 and is fixedly connected to the lower housing 22.

[0022] Specifically, the upper shell 21 and the lower shell 22 can be insulating shells 2 surrounding the circuit board 1, protecting the circuit board 1. The circuit board 1 is disposed within the receiving space 23 formed by the upper shell 21 and the lower shell 22. The upper shell 21 faces the front of the circuit board 1, and the lower shell 22 faces the back of the circuit board 1. The upper shell 21 and the lower shell 22 clamp the circuit board 1, providing insulation and clamping. In this embodiment of the invention, when using the circuit board 1, it is placed on the lower shell 22, and the upper shell 21 is fastened, so that the upper shell 21 and the lower shell 22 contact the front and back of the circuit board 1 respectively, but do not contact the components on the circuit board 1, thereby clamping the circuit board 1 between the upper shell 21 and the lower shell 22. Then, using a connector, the upper shell 21 and circuit board 1 are sequentially inserted from top to bottom and connected to the lower shell 22. This allows the upper shell 21 and lower shell 22 to apply a clamping force to the circuit board 1 while simultaneously fixing the circuit board 1 within the receiving space 23 between the upper shell 21 and lower shell 22, achieving both insulation protection and fixation of the circuit board 1. Furthermore, the lower shell 22 and upper shell 21 can be made of insulating material to provide insulation from the external environment, while simultaneously protecting the circuit board 1. The technical solution in this embodiment of the invention is applicable to different types of circuit boards 1, and the protective device 100 for the circuit board in this embodiment can be moved arbitrarily according to different usage and design requirements, improving the versatility of the circuit board 1.

[0023] Therefore, the protective device 100 of this utility model, by clamping the circuit board 1 between the upper shell 21 and the lower shell 22, serves to insulate and hold the circuit board 1. By using a connector to sequentially pass through the upper shell 21 and the circuit board 1 from top to bottom and connect them to the lower shell 22, the upper shell 21 and the lower shell 22 apply a clamping force to the circuit board 1 while reliably fixing the circuit board 1 within the receiving space 23 between the upper shell 21 and the lower shell 22. This achieves insulation protection and fixation of the circuit board 1, avoiding safety hazards such as accidental contact when the circuit board 1 is exposed. Simultaneously, the top plate 2103 and the bottom plate 2202 are arranged around the circuit board 1, preventing damage to the circuit board 1 from external force during docking and assembly with other resources. Furthermore, the upper shell 21 and the lower shell 22 are detachably connected, facilitating the disassembly and maintenance of the circuit board 1.

[0024] Furthermore, the upper shell 21 is provided with a first connecting part 2102, the lower shell 22 is provided with a second connecting part 2201 and a positioning part, and the circuit board 1 is provided with a third connecting part and a mating part. The positions of the first connecting part 2102, the second connecting part 2201 and the third connecting part correspond one-to-one. The mating part and the positioning part are connected by connecting parts that pass through the first connecting part 2102 and the third connecting part and then connect with the second connecting part 2201.

[0025] Specifically, the lower shell 22 has a positioning part, such as a latching protrusion, on the side facing the back of the circuit board 1. When installing the circuit board 1, the circuit board 1 is positioned and engaged with the positioning part on the lower shell 22 through a mating part, such as a latching hole, thereby positioning the circuit board 1 on the lower shell 22. This achieves the corresponding positional relationship between the second connecting part 2201 and the third connecting part. Then, the upper shell 21 is fastened, so that the upper shell 21 and the lower shell 22 respectively contact the front and back of the circuit board 1, thereby achieving the pre-installation of the circuit board. Then, the connector passes through the first connecting part 2102 of the upper shell 21 from top to bottom, aligns with the third connecting part of the circuit board 1, and then connects with the second connecting part 2201 of the lower shell 22. This allows the upper shell 21 and the lower shell 22 to apply a clamping force to the circuit board 1, while also fixing the circuit board 1 within the receiving space 23 between the upper shell 21 and the lower shell 22, effectively achieving the insulation protection and fixing function of the circuit board 1.

[0026] Furthermore, the upper shell 21 includes a top plate 2103, and a first connecting portion 2102 is provided on the side of the top plate 2103 facing the lower shell 22. The lower shell 22 includes a bottom plate 2202, and a second connecting portion 2201 is provided on the side of the bottom plate 2202 facing the upper shell 21. Both the first connecting portion 2102 and the second connecting portion 2201 are connecting posts, and a connecting hole that mates with a connector is formed in the middle of the connecting post.

[0027] Specifically, the upper shell 21 includes a top plate 2103. A connecting post is provided on the side of the top plate 2103 facing the front of the circuit board 1. A connecting hole for cooperating with a connector is formed in the middle of the connecting post, and an opening communicating with the connecting hole is formed on the top plate 2103. Similarly, the lower shell 22 includes a bottom plate 2202. A connecting post is provided on the side of the bottom plate 2202 facing away from the circuit board 1. A connecting hole for cooperating with a connector is formed in the middle of the connecting post, and the third connecting portion on the circuit board 1 is a through hole. When installing the circuit board 1, the connector passes through the top plate 2103, the connecting post of the top plate 2103, and the circuit board 1, and connects with the connecting post of the bottom plate 2202, thus fixing the circuit board 1. The connecting post of the top plate 2103 and the connecting post of the bottom plate 2202 clamp the circuit board 1 between them, achieving both clamping and fixing of the circuit board 1. Furthermore, the connector passing through the connecting post protects the connector, preventing corrosion and insulating it from the circuit board 1, while also facilitating heat dissipation. In this embodiment, the connector is a screw, and correspondingly, the connecting hole in the connecting post is a threaded hole.

[0028] Furthermore, the upper shell 21 has first connecting portions 2102 at its four corners, and the remaining portion of the upper shell 21 excluding the corners has at least one first connecting portion 2102. Similarly, the lower shell 22 has at least one second connecting portion 2201 at its four corners, and the remaining portion of the lower shell 22 excluding the corners. This arrangement, by connecting the four corners of the upper shell 21 and the lower shell 22, effectively prevents the circuit board 1 from shaking or shifting inside the insulating housing 2, thereby improving its stability in the working environment. Simultaneously, the four-sided fixing provides more support points, helping to enhance the overall structural strength of the circuit board 1 and reducing the risk of damage caused by external impacts or vibrations.

[0029] In addition, at least one first connecting part 2102 is provided on the upper shell 21 except for the four corners. Similarly, at least one corresponding second connecting part 2201 is provided on the lower shell 22 except for the four corners. This realizes multiple fixing points for the circuit board 1, which can further ensure the clamping and fixing effect of the circuit board 1.

[0030] In this embodiment, based on the first connecting part 2102 and the second connecting part 2201 as connecting column structures, a first connecting part 2102 can also be provided in the central area of ​​the upper shell 21. Since the upper shell 21 has a visualization window 2101, a first connecting part 2102 can be provided in the area around the visualization window 2101, which can improve the fixing effect of the upper shell 21 and the lower shell 22 on the circuit board 1, and at the same time improve the mutual support and structural strength between the upper shell 21 and the lower shell 22.

[0031] Furthermore, in the vertical direction of the insulating housing 2, the thickness of the first connecting portion 2102 is greater than the thickness of the second connecting portion 2201.

[0032] Specifically, the thickness of the connecting post on the top plate 2103 is greater than the thickness of the connecting post on the bottom plate 2202. While ensuring that the front and back of the circuit board 1 do not directly contact the top plate 2103 and the bottom plate 2202, it can provide a sufficiently large space for the components on the front of the circuit board 1, which is conducive to arranging multiple functional modules on the front of the circuit board 1, thereby ensuring the normal operation of the circuit board 1.

[0033] Furthermore, a support portion 2203 is provided on the side of the lower shell 22 facing the upper shell 21. The support portion 2203 extends along the length and / or width direction of the lower shell 22, and the circuit board 1 abuts against the upper part of the support portion 2203.

[0034] Specifically, since the circuit board 1 is sandwiched between the upper shell 21 and the lower shell 22, the circuit board 1 will be in a suspended state. In order to further ensure that the entire surface of the circuit board 1 is placed flat on the lower shell 22, a support part 2203, such as a support rib, can be provided on the lower shell 22. The support rib can extend along the length direction and / or width direction of the lower shell 22 so that the circuit board 1 is laid on the lower shell 22 and there will be no unevenness when it is connected to the upper shell 21.

[0035] Furthermore, the circuit board 1 includes multiple functional modules, and the upper shell 21 is provided with multiple visualization windows 2101, which overlap with at least some of the functional modules.

[0036] In the embodiments of this utility model, the circuit board 1 is provided with multiple different functional modules. Considering that some functional modules need to be visualized, multiple visualization windows 2101 are opened on the upper shell 21 so that the visualization windows 2101 overlap with some functional modules, thereby revealing some functional modules.

[0037] Specifically, the circuit board 1 includes a power control module, an alarm indication module 11, a functional device interface module 12, and a display control module 13. Multiple visualization windows 2101 are at least overlapped with the alarm indication module 11, the functional device interface module 12, and the display control module 13.

[0038] In an embodiment of this utility model, the circuit board 1 is a circuit board 1 with testing function, which may include an alarm indication module 11 (which may be equipped with multiple alarm indicator lights), a functional device interface module 12 (an interface module for connecting with external functional devices), a display control module 13 (a module for connecting and controlling with an external display screen 200), and a power control module (a module for connecting with an external voltage).

[0039] In this embodiment, the three visualization windows 2101 overlap with the alarm indication module 11, the functional device interface module 12, and the display control module 13, respectively, thereby enabling the visualization of the alarm indication module 11 and the signal connection between the functional device interface module 12 and the display control module 13 and the external environment. Furthermore, the three visualization windows 2101 are respectively positioned on three different sides of the upper shell 21, ensuring they do not interfere with each other's operation.

[0040] Furthermore, the surface of the upper shell 21 is provided with a plurality of touch indicator keys 24 for signal transmission with the circuit board 1; wherein, the surface of the upper shell 21 is formed with a groove structure or a raised structure to form the touch indicator keys 24.

[0041] In this embodiment, a groove structure is formed on the surface of the upper shell 21. This groove structure is regarded as a touch indicator key 24. Since the circuit board 1 in this embodiment interacts with the outside world through the working principle of capacitive sensing, the user only needs to move to the groove structure to realize the signal transmission between the user and the circuit board 1, thereby instructing the circuit board 1 to work.

[0042] The test system according to the second aspect of the present invention includes a display screen 200, functional devices, a power supply module, and a circuit board protection device 100. The display screen 200 and the functional devices are respectively connected to the circuit board 1, and the power supply module is connected to the circuit board 1.

[0043] Specifically, taking a test system for testing the performance of multiple exhaust fans as an example, the test system may include a display screen 200, exhaust fans, a low-voltage power supply, and a circuit board protection device 100. Eight exhaust fans under test can be connected through the functional device interface module 12 of the circuit board 1, a low-voltage power supply can be connected through the power control module of the circuit board 1, and the display screen 200 can be connected through the display control module 13 of the circuit board 1. During the test, the tester touches a button to start the operation. The calculation control module in the circuit board 1 controls the eight exhaust fans under test to rotate at a preset speed through the speed adjustment module; the calculation control module measures the actual speed of the eight exhaust fans under test through the speed adjustment module and displays it on the display screen 200; the calculation control module compares the difference between the preset speed and the actual speed of each exhaust fan to determine whether it meets the standard; if any exhaust fan exceeds the standard, the alarm indication module 11 will sound an alarm and alert the tester, thus achieving the test objective.

[0044] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0045] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example.

[0046] Although embodiments of the present invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the claims and their equivalents.

Claims

1. A protection device for a circuit board, characterized in that, include: Circuit board; An insulating housing includes an upper shell and a lower shell, with a receiving space formed between the upper shell and the lower shell, and the circuit board is sandwiched between the upper shell and the lower shell and located in the receiving space. The surface of the upper shell is provided with a plurality of touch indicator keys for signal transmission with the circuit board. A connector, which passes through the upper shell and the circuit board and is then fixedly connected to the lower shell.

2. The circuit board protection device according to claim 1, characterized in that, The upper shell is provided with a first connecting part, the lower shell is provided with a second connecting part and a positioning part, the circuit board is provided with a third connecting part and a mating part, the positions of the first connecting part, the second connecting part and the third connecting part correspond one-to-one, the mating part mates with the positioning part, and the connector passes through the first connecting part and the third connecting part and connects with the second connecting part.

3. The circuit board protection device according to claim 2, characterized in that, The upper shell includes a top plate, and the top plate is provided with a first connecting part on the side facing the lower shell. The lower shell includes a bottom plate, and the bottom plate is provided with a second connecting part on the side facing the upper shell. Both the first connecting part and the second connecting part are connecting posts, and a connecting hole that mates with the connecting member is formed in the middle of the connecting post.

4. The circuit board protection device according to claim 3, characterized in that, In the vertical direction of the insulating shell, the thickness of the first connecting portion is greater than the thickness of the second connecting portion.

5. The circuit board protection device according to claim 3, characterized in that, The upper shell has a first connecting portion at each of its four corners and at least one first connecting portion at the remaining portion of the upper shell excluding the four corners; the lower shell has a second connecting portion at each of its four corners and at the remaining portion of the lower shell excluding the four corners.

6. The circuit board protection device according to claim 2, characterized in that, The lower shell has a support portion on the side facing the upper shell. The support portion extends along the length and / or width of the lower shell, and the circuit board abuts against the upper part of the support portion.

7. The circuit board protection device according to claim 1, characterized in that, The circuit board includes multiple functional modules, and the upper shell is provided with multiple visualization windows, which overlap with at least a portion of the functional modules.

8. The circuit board protection device according to claim 7, characterized in that, The circuit board includes a power control module, an alarm indication module, a functional device interface module, and a display control module. The plurality of visualization windows are arranged to overlap at least with the alarm indication module, the functional device interface module, and the display control module.

9. The circuit board protection device according to claim 1, characterized in that, The surface of the upper shell is formed with a groove structure or a raised structure to form the touch indicator key.

10. A testing system, characterized in that, The device includes a display screen, functional components, a power supply module, and a protection device for a circuit board as described in any one of claims 1-9, wherein the display screen and the functional components are respectively connected to the circuit board, and the power supply module is connected to the circuit board.

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