Testing equipment for flexible printed circuit boards of power batteries

Abstract

This utility model belongs to the field of battery technology and relates to a testing device for a flexible printed circuit board (PCB) of a power battery. It includes: an upper mold box and a lower mold box that cooperates with the upper mold box. The upper mold box includes an upper mold box body, and an upper loading plate adapted to the flexible PCB is installed at the bottom of the upper mold box body. The lower mold box includes a lower mold box body, and a lower loading plate adapted to the flexible PCB is installed on the surface of the lower mold box body. After the upper and lower mold boxes are engaged, the upper loading plate and the lower loading plate cooperate to press the flexible PCB. It also includes a contour connector mounting unit, which is installed inside the lower mold box body. The contour connector mounting unit is used to install a contour connector, which is electrically connected to the flexible PCB. The advantages of this structure are: simple structure, convenient operation, and practicality.

Description

Technical Field

[0001] This utility model belongs to the field of battery manufacturing technology, specifically, it relates to a testing device for flexible printed circuit boards of power batteries. Background Technology

[0002] In the manufacturing process of power batteries, FPC (flexible printed circuit board) is a crucial component connecting various battery components (such as temperature sensors, terminals, and connection points). The function of the FPC directly affects the performance and safety of the battery system, undertaking critical roles such as voltage and temperature signal acquisition and battery connection. Therefore, ensuring the quality and performance of the FPC is of paramount importance to battery safety.

[0003] Among these components, the NTC (temperature sensor) and terminals (connection points) are particularly critical. Poor soldering or resistance drift in the NTC sensor can directly lead to temperature measurement failure, affecting the battery's temperature control system and significantly increasing the risk of overheating or even thermal runaway. In the terminal section, microcracks or excessive contact resistance will cause signal distortion, preventing the Battery Management System (BMS) from accurately monitoring the battery status and impacting system performance and safety. If FPC circuitry breaks or insulation damage is not detected in time, it can potentially lead to serious accidents such as battery short circuits and fires, directly affecting the safety of the entire vehicle or energy storage system.

[0004] Therefore, during FPC assembly, each component must be rigorously inspected to ensure that every solder joint, terminal, and circuit body meets quality standards. In current production processes, FPC inspection typically relies on manual checks and partially automated methods. However, due to the high requirements for accuracy, efficiency, and stability, traditional inspection methods struggle to meet the demands of efficient and high-precision production. Furthermore, manual checks are susceptible to human error, making it difficult to comprehensively guarantee FPC quality. Utility Model Content

[0005] To address the aforementioned problems in the prior art, this utility model provides a testing device for flexible printed circuit boards of power batteries.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: As one aspect of this utility model, a testing device for a flexible printed circuit board of a power battery is proposed, which includes: an upper mold box and a lower mold box that cooperates with the upper mold box. The upper mold box includes an upper mold box body, and an upper plate adapted to the flexible printed circuit board is installed at the bottom of the upper mold box body. The lower mold box includes a lower mold box body, and a download board adapted to the flexible printed circuit board is installed on the surface of the lower mold box body. After the upper mold box and the lower mold box are engaged, the upper download board and the download board cooperate to press the flexible printed circuit board. It also includes a contour connector mounting unit, which is installed in the lower mold housing; the contour connector mounting unit is used to install the contour connector, which is electrically connected to the flexible printed circuit board.

[0007] Furthermore, the conformal connector mounting unit includes left and right adjustment plates, which are detachably mounted on the lower mold housing; front and rear adjustment plates are detachably mounted on the mounting slots of the left and right adjustment plates; and a third carrier plate adapted to the flexible printed circuit board is mounted on the front and rear adjustment plates. A cylinder fixing plate is installed inside the lower mold box, and a cylinder is installed on the cylinder fixing plate. The movable end of the cylinder is connected to a contour connector, which is electrically connected to a flexible printed circuit board located on the front and rear adjustment plates.

[0008] Furthermore, it also includes a clamping unit, which includes a clamping base. The clamping base is installed on the front and rear adjustment plates. There are two clamping bases spaced apart. A rotating shaft is connected to each of the two clamping bases. A pressure plate is rotatably connected between the two rotating shafts. After the pressure plate (102) is pressed down, it is located above the contour connector.

[0009] Furthermore, it also includes a barcode scanner, which is mounted on the lower mold housing.

[0010] Furthermore, the lower mold housing is provided with a guide sleeve, and the upper mold housing is equipped with a guide rod that cooperates with the guide sleeve.

[0011] Furthermore, a slide rail is installed inside the lower mold housing, and a slider is slidably connected on the slide rail. The slider is connected to the housing of the contour connector.

[0012] Furthermore, the long side of the left and right adjustment plates is provided with one or more first elongated holes, which are detachably connected to the lower mold box by fasteners.

[0013] Furthermore, the short side of the front and rear adjustment plates is provided with one or more second elongated holes, which are detachably connected to the left and right adjustment plates by fasteners.

[0014] The beneficial effects of this utility model's testing equipment for flexible printed circuit boards of power batteries are specifically reflected in the following aspects: when in use, the finished flexible printed circuit board is placed into the inspection slot of the download board, the pressure plate presses the conformal connector tightly, and finally the mold is closed; it is convenient to operate and simple to use. Attached Figure Description

[0015] The accompanying drawings, which form part of this application, are used to provide a further understanding of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention.

[0016] Figure 1 This is a front view of the structure of the testing equipment for the flexible printed circuit board of the power battery according to this utility model. Figure 2 The top view of the structure of the testing equipment for the flexible printed circuit board of the power battery of this utility model; Figure 3 This is a schematic diagram of the lower mold box of the power battery of this utility model; Figure 4 This is a schematic diagram of the conformal connector mounting unit of this utility model; Figure 5 This is a schematic diagram of the pressing unit of this utility model. Detailed Implementation

[0017] To make the objectives, technical solutions, and advantages of this utility model clearer, the technical solutions of this utility model will be clearly and completely described below in conjunction with specific embodiments and corresponding drawings. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0018] One embodiment of this application provides a testing device for flexible printed circuit boards of power batteries, such as... Figures 1-5 As shown, it includes: an upper mold box 1 and a lower mold box 2 that cooperates with the upper mold box 1. The upper mold box 1 includes an upper mold box body 11, and an upper carrier plate 12 adapted to the flexible printed circuit board 3 is installed at the bottom of the upper mold box body 11. The lower mold box 2 includes a lower mold box body 21. A download plate 22 adapted to the flexible printed circuit board 3 is mounted on the surface of the lower mold box body 21. After the upper mold box 1 and the lower mold box 2 are engaged, the upper loading plate 12 and the download plate 22 cooperate to press the flexible printed circuit board 3, so as to facilitate the flexible printed circuit board 3 to perform corresponding tests. It should be noted that the principle and structure of testing the flexible printed circuit board 3 are existing known technologies and will not be described in detail here. The focus of this application is: how to limit and fix the flexible printed circuit board 3 to facilitate the flexible printed circuit board 3 to perform corresponding tests.

[0019] Furthermore, such as Figures 2-3As shown, the lower mold box 21 is provided with a guide sleeve 4, and the upper mold box 11 is equipped with a guide rod 5 that cooperates with the guide sleeve 4, so as to facilitate the connection between the upper mold box 1 and the lower mold box 2.

[0020] Furthermore, such as Figures 3-5 As shown, it also includes a contour connector mounting unit 6, which is installed inside the lower mold housing 21. The contour connector mounting unit 6 is used to install a contour connector 7, which is electrically connected to the flexible printed circuit board 3 for subsequent corresponding testing. The structure and principle of the contour connector 7 are existing technologies and will not be described in detail here. The key point is how to install the contour connector 7 to adapt it to the fit with the flexible printed circuit board 3.

[0021] Specifically, such as Figures 4-5 As shown, the contour connector mounting unit 6 includes a left and right adjustment plate 61, which is detachably mounted on the lower mold housing 21. A front and rear adjustment plate 62 is detachably mounted on the mounting slot of the left and right adjustment plate 61. The long side of the left and right adjustment plate 61 has one or more first elongated holes 611, which are detachably connected to the lower mold housing 21 by fasteners, allowing the left and right adjustment plates 61 to be adjusted in the left and right relative positions to the lower mold housing 21. The short side of the front and rear adjustment plate 62 has one or more second elongated holes 621, which are detachably connected to the left and right adjustment plates 61 by fasteners, allowing the front and rear adjustment plates 62 to be adjusted in the front and rear relative positions to the left and right adjustment plates 61. The corresponding adjustment can only be made after the fasteners are loosened. A third carrier plate 622 adapted to the flexible printed circuit board 3 is mounted on the front and rear adjustment plate 62. A cylinder fixing plate 63 is installed inside the lower mold housing 21. A cylinder 64 is installed on the cylinder fixing plate 63. The movable end of the cylinder 64 is connected to a contour connector 7, so that the movable end of the cylinder 64 drives the contour connector 7 to move upward, so that the contour connector 7 is electrically connected to the flexible printed circuit board 3 located on the front and rear adjustment plates 62. After the test is completed, the movable end of the cylinder 64 descends, and the contour connector 7 descends to the preset position.

[0022] Furthermore, the third carrier plate 622 is provided with a through slot for the contour connector 7 to pass through.

[0023] Furthermore, such as Figure 5 As shown, in order to make the contour connector 7 run smoothly, a slide rail 8 is installed in the lower mold housing 21, and a slider 9 is slidably connected on the slide rail 8. The slider 9 is connected to the housing of the contour connector 7.

[0024] Furthermore, such as Figures 4-5As shown, it also includes a clamping unit 10, which clamps the flexible printed circuit board 3 to the detection surface of the conformal connector 7 to facilitate the detection of the conformal connector 7; the clamping unit 10 is movably connected to the front and rear adjustment plates 62.

[0025] Specifically, the clamping unit 10 includes a clamping base 101, which is mounted on the front and rear adjustment plates 62. There are two clamping bases 101 spaced apart, and each of the two clamping bases 101 is connected to a rotating shaft. A pressure plate 102 is rotatably connected between the two rotating shafts. After the pressure plate 102 is pressed down, it is located above the contour connector 7. During testing, the flexible printed circuit board 3 is located between the pressure plate 102 and the contour connector 7. The upper mold box 11 is provided with a clearance groove for the pressure plate 102 to make room, so that the upper mold box 1 and the lower mold box 2 fit tightly together.

[0026] Furthermore, such as Figures 4-5 As shown, it also includes a barcode scanner 104. The structure and principle of the barcode scanner 104 are existing technologies and will not be described in detail here. The barcode scanner 104 scans the barcode on the flexible printed circuit board 3. The barcode scanner 104 is installed on the lower mold box 21. The front and rear adjustment plates 62 are provided with scanning holes 105 to facilitate scanning by the barcode scanner 104.

[0027] In use, the finished flexible printed circuit board 3 is placed into the inspection slot of the download board 22, the pressure plate 102 presses the conformal connector 7, and finally the mold is closed.

[0028] Furthermore, it should be noted that the use of terms such as "first" and "second" to define components is merely for the purpose of distinguishing the corresponding components. Unless otherwise stated, the above terms have no special meaning and therefore cannot be construed as limiting the scope of protection of this application.

[0029] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," "connected," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within 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.

[0030] The above description is only a preferred embodiment of the present utility model. All equivalent changes and modifications made within the scope of the patent application of the present utility model shall be covered by the present utility model.

Claims

1. A testing device for flexible printed circuit boards of power batteries, characterized in that, It includes: The upper mold box (1) and the lower mold box (2) that cooperate with the upper mold box (1) are provided. The upper mold box (1) includes an upper mold box body (11) and an upper carrier plate (12) adapted to the flexible printed circuit board (3) is installed at the bottom of the upper mold box body (11). The lower mold box (2) includes a lower mold box body (21). The surface of the lower mold box body (21) is equipped with a download board (22) that is compatible with the flexible printed circuit board (3). After the upper mold box (1) and the lower mold box (2) are engaged, the upper loading board (12) and the download board (22) work together to press the flexible printed circuit board (3). It also includes a contour connector mounting unit (6), which is installed inside the lower mold housing (21); the contour connector mounting unit (6) is used to install a contour connector (7), which is electrically connected to the flexible printed circuit board (3).

2. The testing equipment for flexible printed circuit boards of power batteries as described in claim 1, characterized in that, The conformal connector mounting unit (6) includes a left and right adjustment plate (61), which is detachably mounted on the lower mold housing (21); a front and rear adjustment plate (62) is detachably mounted on the mounting slot of the left and right adjustment plate (61); a third carrier plate (622) adapted to the flexible printed circuit board (3) is mounted on the front and rear adjustment plate (62). A cylinder fixing plate (63) is installed inside the lower mold box (21), and a cylinder (64) is installed on the cylinder fixing plate (63). The movable end of the cylinder (64) is connected to a contour connector (7), and the contour connector (7) is electrically connected to a flexible printed circuit board (3) located on the front and rear adjustment plates (62).

3. The testing equipment for flexible printed circuit boards of power batteries as described in claim 2, characterized in that, It also includes a clamping unit (10), which includes a clamping base (101). The clamping base (101) is installed on the front and rear adjustment plate (62). There are two clamping bases (101) spaced apart. A rotating shaft is connected to each of the two clamping bases (101). A pressure plate (102) is rotatably connected between the two rotating shafts. After the pressure plate (102) is pressed down, it is located above the contour connector (7).

4. The testing equipment for flexible printed circuit boards of power batteries as described in claim 1, characterized in that, It also includes a barcode scanner (104), which is mounted on the lower mold housing (21).

5. The testing equipment for flexible printed circuit boards of power batteries as described in claim 1, characterized in that, The lower mold box (21) is provided with a guide sleeve (4), and the upper mold box (11) is provided with a guide rod (5) that cooperates with the guide sleeve (4).

6. The testing equipment for flexible printed circuit boards of power batteries as described in claim 1, characterized in that, The lower mold box (21) is equipped with a slide rail (8), and a slider (9) is slidably connected on the slide rail (8). The slider (9) is connected to the housing of the contour connector (7).

7. The testing equipment for flexible printed circuit boards of power batteries as described in claim 2, characterized in that, The left and right adjustment plates (61) have one or more first elongated holes (611) on their long sides. The first elongated holes (611) are detachably connected to the lower mold box (21) by fasteners.

8. The testing equipment for flexible printed circuit boards of power batteries as described in claim 7, characterized in that, The front and rear adjustment plates (62) have one or more second elongated holes (621) on their short sides. The second elongated holes (621) are detachably connected to the left and right adjustment plates (61) by fasteners.

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