PCBA (Printed Circuit Board Assembly) single board function test integrated jig
By designing an integrated fixture for PCBA single-board functional testing, the problem of frequent equipment changes required for single-board testing devices was solved, enabling rapid switching of tests and improving testing efficiency and safety.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-31
- Publication Date
- 2026-03-20
AI Technical Summary
In existing technologies, single-board testing devices require frequent replacement of testing equipment, leading to equipment damage and low safety.
Design an integrated fixture for PCBA single-board functional testing, comprising a box structure, a first test structure, a current check board assembly, and a second test structure. All components are housed within the box structure. By selecting appropriate test structures and current check boards and electrically connecting them to the PCBA board under test, rapid switching of tests can be achieved without changing equipment.
This reduces the disassembly and handling of equipment, improves testing efficiency and equipment safety, and avoids equipment damage.
Smart Images
Figure CN224019934U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of single-board testing devices, and in particular to an integrated fixture for testing the function of PCBA single boards. Background Technology
[0002] Single-board testing equipment is mainly used for after-sales maintenance and bulk spare parts, that is, to conduct after-sales testing on goods and monitor product quality before shipment.
[0003] In existing technologies, a single workstation often needs to undertake testing tasks for multiple machine types and models. In order to ensure timely delivery, it is necessary to test as many machines as possible within a unit of time. Therefore, how to quickly switch between different machine types has become a serious problem.
[0004] Currently, in single-board testing of high-voltage equipment, the existing practice is often to replace the board with a semi-finished product. This approach has certain drawbacks: the setup environment is slow and requires screw fixing. Different test environments need to be set up for different devices under test, resulting in frequent assembly and disassembly. Furthermore, collisions can easily occur during the disassembly process, causing equipment damage. If this method is not used, the matching test equipment needs to be moved back and forth for the corresponding device under test, which can easily cause damage during transportation and has a low safety factor. Utility Model Content
[0005] The purpose of this utility model is to provide an integrated fixture for PCBA single-board functional testing, so as to alleviate the technical problem in the prior art that different test environments need to be built specifically for different devices under test, which requires frequent assembly and disassembly of the equipment, resulting in collisions and damage to the equipment during the disassembly process.
[0006] To achieve the above objectives, the present invention adopts the following technical solution:
[0007] In a first aspect, this utility model provides an integrated fixture for testing the function of a PCBA single board, including a box structure, a first test structure, a current check board assembly, and a second test structure, wherein the first test structure, the current check board assembly, and the second test structure are all disposed within the box structure;
[0008] The flow detector assembly is disposed between the first test structure and the second test structure, and the flow detector assembly includes at least one set of flow detectors;
[0009] The first test structure or the second test structure is electrically connected to the corresponding current detector board, and the first test structure or the second test structure is used to electrically connect to the external PCBA board under test and the power supply.
[0010] The corresponding current detector is electrically connected to the PCBA board under test.
[0011] Furthermore, the box structure includes a cuboid box body and a box lid, and the box body is provided with a receiving space for accommodating the first test structure, the flow detector assembly and the second test structure;
[0012] The lid is connected to the box body to seal the accommodating space.
[0013] Furthermore, two first cable outlets are spaced apart at the ends of the housing, and the first test structure or the second test structure extends wires through the corresponding first cable outlets for connection to the power supply.
[0014] Furthermore, each of the first outlet ports is provided with a connector, which is connected to the first test structure or the second test structure, and the connector is used to connect to the power supply via a wire.
[0015] Furthermore, the side wall of the housing is provided with a second cable outlet, and the current detector assembly and the first test structure or the second test structure all extend wires through the second cable outlet for electrical connection with the PCBA board under test.
[0016] Furthermore, the box lid is provided with a latch, and the box lid is detachably connected to the box body through the latch.
[0017] Furthermore, the first test structure includes a first relay and a second relay, both of which are located at the first end of the box structure;
[0018] The first relay is electrically connected to the second relay;
[0019] Both the first relay and the second relay are electrically connected to the corresponding current detector plate;
[0020] Both the first relay and the second relay are used to connect to the power supply.
[0021] Furthermore, the first test structure also includes a soft-start board, which is disposed at the first end of the box structure and is electrically connected to the first relay and the second relay respectively, and is used to connect to the external power supply.
[0022] Furthermore, the second test structure includes a third relay and a fourth relay, both of which are located at the second end of the box structure;
[0023] The third relay is electrically connected to the fourth relay;
[0024] The third relay and the fourth relay are each electrically connected to the corresponding current detector plate;
[0025] Both the third relay and the fourth relay are used to connect to the external power supply.
[0026] Furthermore, the flow detector assembly has multiple flow detectors, including a first flow detector, a second flow detector, a third flow detector, and a fourth flow detector. The first flow detector, the second flow detector, the third flow detector, and the fourth flow detector are all detachably connected to the box structure.
[0027] The first, second, third, and fourth flow detectors are all cross-shaped and spaced apart.
[0028] This utility model can achieve the following beneficial effects:
[0029] In a first aspect, this utility model provides an integrated fixture for testing the function of a PCBA single board, including a box structure, a first test structure, a current check board assembly, and a second test structure. The first test structure, the current check board assembly, and the second test structure are all disposed within the box structure. The current check board assembly is disposed between the first test structure and the second test structure, and the current check board assembly includes at least one set of current check boards. The first test structure or the second test structure is electrically connected to the corresponding current check board, and the first test structure or the second test structure is used to electrically connect to an external PCBA board under test and a power supply. The corresponding current check board is electrically connected to the PCBA board under test.
[0030] In this invention, a housing space is provided within the box structure, with a first test structure at one end and a second test structure at the other end. A current check assembly is located in the middle of the housing space, between the two test structures. In use, the PCBA board to be tested is placed on the outside of the box structure, and then the box structure is opened. According to the parameters that the PCBA board to be tested actually needs to be tested, the corresponding first or second test structure is selected, and the selected test structure is electrically connected to the external power supply and the PCBA board to be tested. The current check assembly can consist of two, three, or four current check boards. In use, the test structure is electrically connected to the corresponding current check board, and then the current check board is electrically connected to the PCBA board to be tested.
[0031] Compared with the prior art, the PCBA single-board functional testing integrated fixture provided by this utility model houses the first test structure, the first test structure, and the current check board assembly within a box structure. During use, the appropriate test structure and current check board are selected according to actual usage requirements, and the test structure, current check board, PCBA board under test, and power supply are electrically connected to achieve the testing of corresponding parameters of the PCBA board. For other PCBA boards and other parameters, the testing can be completed by reselecting the test structure and current check board and reconnecting them, without the need to replace the testing equipment, thus eliminating the need for disassembling equipment and carrying it back and forth.
[0032] In summary, this utility model at least alleviates the technical problem in the prior art that different test environments need to be built specifically for different devices under test, thus requiring frequent assembly and disassembly of the equipment, which may cause damage to the equipment due to collisions during the disassembly process. Attached Figure Description
[0033] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.
[0034] Figure 1 A three-dimensional structural diagram of the PCBA single-board functional testing integrated fixture in the open state provided in this embodiment of the utility model;
[0035] Figure 2 A top view of the PCBA single-board functional testing integrated fixture provided in the embodiment of this utility model in the open state;
[0036] Figure 3 This is a side view of the PCBA single-board functional testing integrated fixture in the open state, as provided in an embodiment of this utility model.
[0037] Icons: 1-Box structure; 11-Box body; 111-First cable outlet; 112-Second cable outlet; 12-Box cover; 2-First test structure; 21-First relay; 22-Second relay; 23-Soft start board; 3-Current detector assembly; 31-First current detector; 32-Second current detector; 33-Third current detector; 34-Fourth current detector; 4-Second test structure; 41-Third relay; 42-Fourth relay. Detailed Implementation
[0038] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. The components of the embodiments of this utility model described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.
[0039] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.
[0040] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.
[0041] In the description of this utility model, it should be noted that the terms "upper," "lower," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the utility model product is in use. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first," "second," and "third," etc., are only used to distinguish descriptions and should not be construed as indicating or implying relative importance.
[0042] Furthermore, terms such as "horizontal" and "vertical" do not imply that components must be absolutely horizontal or suspended, but rather that they can be slightly tilted. For example, "horizontal" simply means that its direction is more horizontal than "vertical," and does not mean that the structure must be completely horizontal, but can be slightly tilted.
[0043] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," and "connect" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.
[0044] The following detailed description, in conjunction with the accompanying drawings, outlines some embodiments of the present invention. Unless otherwise specified, the following embodiments and features can be combined with each other.
[0045] Example 1
[0046] This embodiment provides an integrated fixture for testing the function of a PCBA single board, referring to... Figure 1 and Figure 2 The integrated fixture for single-board functional testing of PCBA includes a box structure 1, a first test structure 2, a current check board assembly 3, and a second test structure 4. The first test structure 2, the current check board assembly 3, and the second test structure 4 are all located within the box structure 1. The current check board assembly 3 is located between the first test structure 2 and the second test structure 4, and the current check board assembly 3 includes at least one set of current check boards. The first test structure 2 or the second test structure 4 is electrically connected to the corresponding current check board, and the first test structure 2 or the second test structure 4 is used to electrically connect to the external PCBA board under test and the power supply. The corresponding current check board is electrically connected to the PCBA board under test.
[0047] In this embodiment of the utility model, a receiving space is provided inside the box structure 1, and a first test structure 2 is provided at one end of this receiving space, and a second test structure 4 is provided at the other end. A current check assembly 3 is provided in the middle of this receiving space, i.e., between the two test structures. In use, the PCBA board to be tested is placed on the outside of the box structure 1, and then the box structure 1 is opened. According to the parameters that the PCBA board to be tested actually needs to be tested, the corresponding first test structure 2 or second test structure 4 is selected, and the selected test structure is electrically connected to the external power supply and the PCBA board to be tested. The current check assembly 3 can be composed of two, three or four current check boards. In use, the test structure is electrically connected to the corresponding current check board, and then the current check board is electrically connected to the PCBA board to be tested.
[0048] Compared with the prior art, the PCBA single-board functional testing integrated fixture provided by this utility model embodiment houses the first test structure 2, the second test structure 4, and the current check board assembly 3 within the box structure 1. During use, the appropriate test structure and current check board are selected according to actual usage requirements, and the test structure, current check board, PCBA board under test, and power supply are electrically connected to achieve the testing of corresponding parameters of the PCBA board. For other PCBA boards and other parameters, the testing can be completed by reselecting the test structure and current check board and reconnecting them, without the need to replace the testing equipment, thus eliminating the need for disassembling equipment and carrying it back and forth.
[0049] In an optional implementation of this embodiment, refer to Figure 1 and Figure 2The box structure 1 includes a rectangular box body 11 and a box cover 12. The box body 11 is provided with a receiving space for accommodating the first test structure 2, the flow detector assembly 3 and the second test structure 4. The box cover 12 is connected to the box body 11 to close the receiving space.
[0050] Specifically: The rectangular cover 12 is detachably mounted on the cuboid box 11 to seal the accommodating space. One end of the box 11 is provided with a first test structure 2, and the other end is provided with a second test structure 4. The current check board assembly 3 is located between the first test structure 2 and the second test structure 4. In use, the cover 12 is first opened, and the corresponding test structure and current check board are connected to the corresponding PCBA board under test and the power supply. Then the cover 12 is closed to seal the accommodating space.
[0051] Furthermore, referring to Figure 1 and Figure 3 The end of the housing 11 has two first cable outlets 111 spaced apart. The first test structure 2 or the second test structure 4 extends wires through the corresponding first cable outlets 111 for connection to the power supply.
[0052] Specifically: The rectangular box 11 has a first cable outlet 111 at both ends, and preferably, each end has two first cable outlets 111 spaced apart. The two first cable outlets 111 at each end can be B+B- cable outlet and D+D- cable outlet, respectively. Both first cable outlets 111 are battery and power supply test access interfaces, and the first cable outlets 111 at both ends of the box 11 are used to connect the first test structure 2 or the second test structure 4 to an external power supply, etc.
[0053] Furthermore, each of the first outlet ports 111 is provided with a connector, which is connected to the first test structure 2 or the second test structure 4, and the connector is used to connect to the power supply via a wire.
[0054] Specifically: The connector can be an Anderson connector, which connects to the first output port 111 for connection to the battery and power supply. It continues the interface standard used before the single-board testing, so there is no need to upgrade, thereby saving costs and facilitating fixed installation.
[0055] In an optional implementation of this embodiment, refer to Figure 1 The side wall of the housing 11 is provided with a second cable outlet 112. The current detector assembly 3 and the first test structure 2 or the second test structure 4 all extend wires through the second cable outlet 112 for electrical connection with the PCBA board under test.
[0056] Specifically: A second cable outlet 112 is provided at the bottom of the side wall of the housing 11, and this second cable outlet 112 is preferably a rectangular SA interface. In use, all sampling and control harnesses pass through this opening to the outside of the device for electrical connection with the PCBA board under test.
[0057] In an optional embodiment of this invention, the lid 12 is provided with a latch, and the lid 12 is detachably connected to the box body 11 via the latch.
[0058] Specifically: The lid 12 is detachably connected to the box body 11 via a latch; in use, after electrical connection, the lid 12 is closed and secured by the latch to ensure safety during use.
[0059] In an optional implementation of this embodiment, refer to Figure 1 and Figure 2 The first test structure 2 includes a first relay 21 and a second relay 22, both of which are located at the first end of the box structure 1; the first relay 21 is electrically connected to the second relay 22; the first relay 21 and the second relay 22 are respectively electrically connected to the corresponding current detectors; the first relay 21 and the second relay 22 are both used to connect to the power supply.
[0060] Specifically, the first test structure 2 located at one end of the housing 11 includes two relays, namely a first relay 21 and a second relay 22 spaced apart. The two relays are respectively connected to the corresponding current detectors and are connected to the PCBA board under test through the second outlet 112 via wires. They are also connected to an external power supply through the adjacent first outlet 111 via wires, for use in performing relay and current calibration tests on the PCBA board.
[0061] Furthermore, referring to Figure 1 and Figure 2 The first test structure 2 also includes a soft-start plate 23, which is located at the first end of the box structure 1. The soft-start plate 23 is electrically connected to the first relay 21 and the second relay 22 respectively, and the soft-start plate 23 is used to connect to an external power supply.
[0062] Specifically: The soft start plate 23 is located at the first end of the box structure 1, and the soft start plate 23 is electrically connected to the first relay 21 and the second relay 22 respectively; when in use, it starts with a small current at the beginning of operation, and after the equipment starts running, the relay provides the normal operating current. At this time, the soft start plate 23 can shut off the small current, and the equipment runs normally.
[0063] In an optional implementation of this embodiment, refer to Figure 1 and Figure 2The second test structure 4 includes a third relay 41 and a fourth relay 42, both of which are located at the second end of the box structure 1; the third relay 41 and the fourth relay 42 are electrically connected; the third relay 41 and the fourth relay 42 are each electrically connected to their respective current detectors; the third relay 41 and the fourth relay 42 are both used to connect to an external power supply.
[0064] Specifically, the second test structure 4, located at the other end of the housing 11 and distributed opposite to the first test structure 2, includes two relays, namely a third relay 41 and a fourth relay 42 spaced apart. The two relays are respectively connected to the corresponding current detectors and are connected to the PCBA board under test through the second outlet 112 via wires. They are also connected to an external power supply through the adjacent first outlet 111 via wires, for relay testing of the PCBA board.
[0065] In an optional implementation of this embodiment, refer to Figure 1 and Figure 2 The flow deflector assembly 3 has multiple flow deflectors, including a first flow deflector 31, a second flow deflector 32, a third flow deflector 33, and a fourth flow deflector 34. The first flow deflector 31, the second flow deflector 32, the third flow deflector 33, and the fourth flow deflector 34 are all detachably connected to the box structure 1. The first flow deflector 31, the second flow deflector 32, the third flow deflector 33, and the fourth flow deflector 34 are all cross-shaped structures and are spaced apart.
[0066] Specifically: the first current check plate 31, the second current check plate 32, the third current check plate 33 and the fourth current check plate 34 are spaced apart in the middle of the accommodating space, and each current check plate includes a bottom plate connected to the housing 11 by bolts, and a top plate connected to the bottom plate to form a cross shape. The top plate is used to electrically connect to two relays and to the PCBA board under test; while the bottom plate is connected to the top plate by wires, and the bottom plate is connected to the corresponding power supply by wires.
[0067] Finally, it should be noted that the various embodiments in this specification are described in a progressive manner, with each embodiment focusing on the differences from other embodiments. Similar or identical parts between embodiments can be referred to mutually. The above embodiments in this specification are only used to illustrate the technical solutions of this utility model, and not to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features. These modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the various embodiments of this utility model.
Claims
1. An integrated fixture for testing the function of a PCBA single board, characterized in that, It includes a box structure (1), a first test structure (2), a flow detector assembly (3), and a second test structure (4), wherein the first test structure (2), the flow detector assembly (3), and the second test structure (4) are all located inside the box structure (1); The flow detector assembly (3) is disposed between the first test structure (2) and the second test structure (4), and the flow detector assembly (3) includes at least one set of flow detectors; The first test structure (2) or the second test structure (4) is electrically connected to the corresponding current detector board, and the first test structure (2) or the second test structure (4) is used to electrically connect to the external PCBA board under test and the power supply. The corresponding current detector is electrically connected to the PCBA board under test.
2. The PCBA single-board functional testing integrated fixture according to claim 1, characterized in that, The box structure (1) includes a rectangular box body (11) and a box cover (12), and the box body (11) is provided with a accommodating space for accommodating the first test structure (2), the flow detector assembly (3) and the second test structure (4); The lid (12) is connected to the box body (11) to enclose the accommodating space.
3. The PCBA single-board functional testing integrated fixture according to claim 2, characterized in that, The end of the housing (11) has two first cable outlets (111) spaced apart. The first test structure (2) or the second test structure (4) extends wires through the corresponding first cable outlets (111) for connection to the power supply.
4. The PCBA single-board functional testing integrated fixture according to claim 3, characterized in that, Each of the first outlet ports (111) is provided with a connector, which is connected to the first test structure (2) or the second test structure (4), and the connector is used to connect to the power supply via a wire.
5. The PCBA single-board functional testing integrated fixture according to claim 2, characterized in that, The side wall of the housing (11) is provided with a second cable outlet (112). The current detector assembly (3) and the first test structure (2) or the second test structure (4) all extend wires through the second cable outlet (112) for electrical connection with the PCBA board under test.
6. The PCBA single-board functional testing integrated fixture according to claim 2, characterized in that, The lid (12) is provided with a latch, and the lid (12) is detachably connected to the box body (11) through the latch.
7. The PCBA single-board functional testing integrated fixture according to claim 1, characterized in that, The first test structure (2) includes a first relay (21) and a second relay (22), both of which are located at the first end of the box structure (1); The first relay (21) is electrically connected to the second relay (22); The first relay (21) and the second relay (22) are each electrically connected to the corresponding current detector plate; Both the first relay (21) and the second relay (22) are used to connect to the power supply.
8. The PCBA single-board functional testing integrated fixture according to claim 7, characterized in that, The first test structure (2) further includes a soft-start plate (23), which is located at the first end of the box structure (1) and is electrically connected to the first relay (21) and the second relay (22) respectively. The soft-start plate (23) is used to connect to the external power supply.
9. The PCBA single-board functional testing integrated fixture according to claim 1, characterized in that, The second test structure (4) includes a third relay (41) and a fourth relay (42), both of which are located at the second end of the box structure (1); The third relay (41) is electrically connected to the fourth relay (42); The third relay (41) and the fourth relay (42) are each electrically connected to the corresponding current detector plate; Both the third relay (41) and the fourth relay (42) are used to connect to the external power supply.
10. The PCBA single-board functional testing integrated fixture according to any one of claims 1-9, characterized in that, The flow detector assembly (3) has multiple flow detectors, including a first flow detector (31), a second flow detector (32), a third flow detector (33), and a fourth flow detector (34). The first flow detector (31), the second flow detector (32), the third flow detector (33), and the fourth flow detector (34) are all detachably connected to the box structure (1). The first flow detector (31), the second flow detector (32), the third flow detector (33) and the fourth flow detector (34) are all cross-shaped and spaced apart.