High-temperature and high-humidity winding and folding equipment

Abstract

The utility model discloses high-temperature and high-humidity winding and bending equipment which comprises a bending jig and a temperature and humidity adjusting cabinet. The temperature and humidity adjusting cabinet is provided with a cabinet body, an inner cavity, a cabinet door, a temperature and humidity adjusting area and a temperature and humidity display area, the bending jig is detachably arranged in the inner cavity of the temperature and humidity adjusting cabinet and comprises two supporting frames arranged at intervals, a bottom frame, a driving motor, a rotating shaft, a winding and folding plate and at least one weight, and the two supporting frames are fixed to the two ends of a bottom plate; the driving motor is fixedly arranged on one supporting frame, one end of the rotating shaft is connected with an output shaft of the driving motor, the other end of the rotating shaft is connected with one end of the winding and folding plate, the other end of the winding and folding plate is rotatably arranged on the other supporting frame, and one end of the flexible circuit board is fixedly arranged on the winding and folding plate. And the other end of the flexible circuit board protrudes out of the end part of the winding and folding plate and is fixedly connected with the weight. And the temperature and humidity in the inner cavity can be adjusted by the temperature and humidity adjusting cabinet, so that the bending life test of the flexible circuit board in a high-temperature and high-humidity environment is simulated.

Description

Technical Field

[0001] The utility model relates to the technical field of circuit board testing, in particular to a high-temperature and high-humidity folding device. Background Art

[0002] An FPC (flexible printed circuit board) is a printed circuit board made of polyimide or polyester film as the base material, which has high reliability and excellent flexibility, and has the characteristics of high wiring density, light weight, thin thickness and good bendability.

[0003] With the emergence of AI artificial intelligence mobile phones, mid- to high-end mobile phones represented by folding phones, the technological upgrades of automotive intelligence and electrification, wearable devices, etc., the demand for flexible printed circuit boards is also increasing. The importance of flexible printed circuit boards applied in intelligent electronic products is becoming increasingly prominent. Therefore, it is particularly important to be able to control the testing link of the quality of flexible printed circuit board products. For the bending test of flexible printed circuit boards, the traditional method is to use a round rod to perform a 0°-180°-0° bend (one bend is from the horizontal plane to the other horizontal plane at 180° and then back to the 0° horizontal plane), until the specified number of bends is reached. In this bending test method, the stressed position will shift during the bending process, resulting in the test conclusion being unable to truly reflect the bend resistance performance of the flexible part of the flexible printed circuit board, thus affecting the final experimental determination.

[0004] The bending life test of flexible printed circuit boards is an essential step in the reliability test link of flexible printed circuit boards. The existing bending life tests of flexible printed circuit boards usually test the bending performance of flexible printed circuit boards at room temperature. Some products need to operate in a complex environment of high temperature and high humidity. Therefore, it is necessary to simulate the bending life test of flexible printed circuit boards in a high-temperature and high-humidity environment for the flexible printed circuit boards applied in these products. Obviously, the existing bending life test machines cannot meet the requirements.

[0005] In view of this, the utility model deeply conceives in view of the many deficiencies and inconveniences caused by the imperfect structural design of the existing flexible printed circuit board bend resistance test life machine, and actively researches, improves and tries to develop the present utility model. Summary of the Utility Model

[0006] The purpose of the utility model is to overcome the deficiencies of the prior art and provide a high-temperature and high-humidity folding device, which can test the bend resistance performance of flexible printed circuit boards in a high-temperature and high-humidity environment.

[0007] To achieve the above purpose, the solution of the utility model is:

[0008] A high-temperature and high-humidity folding device, which includes a bending fixture and a temperature and humidity control cabinet;

[0009] The temperature and humidity adjustment cabinet has a cabinet body, an inner cavity, a cabinet door, a temperature and humidity adjustment area, and a temperature and humidity display area. The inner cavity is arranged inside the cabinet body. The cabinet door is arranged on one side of the inner cavity in an openable and closable manner. The temperature and humidity adjustment area and the temperature and humidity display area are arranged on the cabinet body. The bending jig is detachably arranged in the inner cavity of the temperature and humidity adjustment cabinet and includes two support frames arranged at intervals, a bottom frame, a driving motor, a rotating shaft, a folding plate, and at least one weight. The two support frames are fixed at both ends of a bottom plate. The driving motor is fixedly arranged on one of the support frames. One end of the rotating shaft is connected to the output shaft of the driving motor, and the other end of the rotating shaft is connected to one end of the folding plate. The other end of the folding plate is rotatably arranged on the other support frame. One end of the flexible circuit board is fixedly arranged on the folding plate, and the other end of the flexible circuit board protrudes outside the end of the folding plate and is fixedly connected to the weight together.

[0010] Further, the cabinet door is arranged in front of the cabinet body. The cabinet door is made of a transparent material or is provided with a transparent observation window. The temperature and humidity adjustment area and the temperature and humidity display area are arranged on the cabinet body below the cabinet door.

[0011] Further, the flexible circuit board is fixed on the folding plate through a fixing jig. The fixing jig is detachably arranged on the folding plate.

[0012] Further, the fixing jig includes an upper fixing plate and a lower fixing plate. A plurality of sets of corresponding screw holes are respectively arranged on the upper fixing plate, the lower fixing plate, and the folding plate. The upper fixing plate, the lower fixing plate, and the folding plate are locked together through screws. The flexible circuit board is arranged between the upper fixing plate and the lower fixing plate.

[0013] Further, a plurality of flexible circuit boards can be arranged side by side on the folding plate or the fixing jig. Each flexible circuit board is respectively fixed with at least one weight. The weight is fixed below the flexible circuit board or at the bottom end of the flexible circuit board. There is an interval between adjacent flexible circuit boards.

[0014] Further, a motor mounting seat is fixedly arranged at the top of the support frame on the side corresponding to the driving motor. The driving motor is mounted on the motor mounting seat. A transfer plate is respectively arranged at both ends of the folding plate. Corresponding limit slots are provided at one ends of the two transfer plates. The two ends of the folding plate are respectively detachably fixed in the limit slots. One of the transfer plates is fixed together with the rotating shaft, and the other transfer plate is rotatably arranged at the top of the support frame.

[0015] Further, an indicating module corresponding to the flexible circuit board is also provided on the fixing jig. The indicating module is connected to the flexible circuit board. Each flexible circuit board has multiple lines. The indicating module includes an indicator light and an indicating circuit board. The indicator light is installed on the indicating circuit board. The indicating circuit board is provided with indicator lights corresponding to the number of lines of the flexible circuit board and corresponding to the flexible circuit board. The flexible circuit board is connected to the indicating circuit board through a cable connector, so that each line of the flexible circuit board corresponds to an indicator light. A power supply module for supplying power to the flexible circuit board is arranged on the fixing jig, and a power connection corresponding to the flexible circuit board is provided on the power supply module.

[0016] Further, an indicating module corresponding to the flexible circuit board is also provided on the fixing jig. The indicating module has an indicator light. Each flexible circuit board is connected to an indicating module. A power supply module for supplying power to the flexible circuit board is arranged on the fixing jig, and a power connector corresponding to the flexible circuit board is provided on the power supply module.

[0017] Further, in order to facilitate the control of bending parameters, the present utility model also provides a control panel connecting the driving motor and the flexible circuit board. The control panel is connected to a display screen. The display screen and the control panel are arranged on the top surface of the cabinet.

[0018] After adopting the above structure, when the high-temperature and high-humidity folding device of the present utility model is in use, the flexible circuit board is fixed on the folding plate or the fixing jig. One end of the flexible circuit board protrudes outside the folding plate and is fixed to a weight. The weight always pulls down the flexible circuit board protruding outside the folding plate. After all the flexible circuit boards on the fixing jig are fixed, the bending jig is installed in the inner cavity of the temperature and humidity adjustment cabinet. When the folding plate rotates, a bending part is formed at the edge position of the flexible circuit board corresponding to the folding plate; the two support frames lift the folding plate to facilitate the flipping of the folding plate. One end of the folding plate is connected to a rotating shaft, and the rotating shaft is connected to a driving motor. The driving motor can drive the rotating shaft to rotate, thereby driving the folding plate and the fixing jig to move together. The folding angle and the number of folding times of the folding plate are controlled by controlling the rotation direction and speed of the driving motor. After the flexible circuit board is fixed on the folding plate, the weight provides a downward pulling force to prevent the bending part from shifting, so as to truly reflect the bending resistance performance of the flexible circuit board. The temperature and humidity in the inner cavity of the temperature and humidity adjustment cabinet can be adjusted in the temperature and humidity adjustment area according to actual needs, so as to simulate the bending life test of the flexible circuit board under high-temperature and high-humidity environment. Description of the Drawings

[0019] Figure 1 It is a schematic structural diagram of the high-temperature and high-humidity folding device of the present utility model.

[0020] Figure 2 It is a schematic structural diagram of the temperature and humidity adjustment cabinet of the present utility model.

[0021] Figure 3This is an exploded view of the bending fixture of the present utility model.

[0022] Figure 4 This is an assembled view of the bending fixture of the present utility model.

[0023] Label description:

[0024] 10. Bending fixture; 1. Support frame; 2. Driving motor; 21. Motor mounting seat; 3. Rotating shaft; 4. Winding plate; 5. Weight; 6. Fixed fixture; 61. Upper fixing plate; 62. Lower fixing plate; 7. Bottom plate; 8. Adapter plate; 81. Limit slot; 9. Display screen; 20. Temperature and humidity adjustment cabinet; 201. Cabinet body; 202. Inner cavity; 203. Cabinet door; 204. Temperature and humidity adjustment area; 205. Temperature and humidity display area; 30. Flexible circuit board. Detailed implementation manners

[0025] In order to further explain the technical solution of the present utility model, the present utility model will be elaborated in detail below through specific embodiments.

[0026] In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus cannot be understood as a limitation to the present utility model. In the description of the present utility model, unless otherwise specified, the meaning of "a plurality of" is two or more.

[0027] As Figures 1 to 4 shown, the present utility model discloses a high-temperature and high-humidity winding device, which includes a bending fixture 10 and a temperature and humidity adjustment cabinet 20.

[0028] Cooperating Figure 2 shown, the temperature and humidity adjustment cabinet 20 has a cabinet body 201, an inner cavity 202, a cabinet door 203, a temperature and humidity adjustment area 204 and a temperature and humidity display area 205. The inner cavity 202 is arranged in the cabinet body 201, the cabinet door 203 is arranged on one side of the inner cavity 202 in an openable and closable manner, and the temperature and humidity adjustment area 204 and the temperature and humidity display area 205 are arranged on the cabinet body 201. In the temperature and humidity adjustment cabinet 20, the adjustment structures of temperature and humidity belong to the prior art and will not be described in detail. In this embodiment, the cabinet door 203 is arranged in front of the cabinet body 201. In order to facilitate the user to observe the condition of the inner cavity 202, the cabinet door 203 is made of a transparent material or provided with a transparent observation window. The temperature and humidity adjustment area 204 and the temperature and humidity display area 205 are arranged on the cabinet body 201 below the cabinet door 203.

[0029] As Figure 3 and Figure 4 , the bending fixture 10 includes two support frames 1 arranged at intervals, a driving motor 2, a rotating shaft 3, a folding plate 4 and at least one weight 5. The driving motor 2 is fixedly arranged on one of the support frames 1. One end of the rotating shaft 3 is connected to the output shaft of the driving motor 2, and the other end of the rotating shaft 3 is connected to one end of the folding plate 4. The other end of the folding plate 4 is rotatably arranged on the other support frame 1. One end of the flexible circuit board 30 is fixedly arranged on the folding plate 4, and the other end of the flexible circuit board 30 protrudes outside the end of the folding plate 4 and is fixedly connected to the weight 5 together.

[0030] Preferably, the flexible circuit board is fixed on the folding plate 4 through a fixing fixture 6. The fixing fixture 6 is detachably arranged on the folding plate 4, and different fixing fixtures 6 can be designed according to different flexible circuit boards. The fixing fixture 6 includes an upper fixing plate 61 and a lower fixing plate 62. The flexible circuit board 30 is arranged between the upper fixing plate 61 and the lower fixing plate 62. There are various fixing methods for the fixing fixture 6 and the folding plate 4. For example, screw locking or snap fit or other connection methods can be adopted. In this embodiment, the screw locking method is adopted. Multiple groups of corresponding screw holes are respectively arranged on the upper fixing plate 61, the lower fixing plate 62 and the folding plate 4, and the upper fixing plate 61, the lower fixing plate 62 and the folding plate 4 are locked together by screws.

[0031] A plurality of flexible circuit boards 30 can be arranged side by side on the folding plate 4 or the fixing fixture 6. Each flexible circuit board 30 is respectively fixed with at least one weight 5, and adjacent flexible circuit boards 30 are arranged at intervals. Designed in this way, multiple flexible circuit boards can be tested at one time, improving the test efficiency.

[0032] The weight 5 can be fixed below the flexible circuit board 30 or at the bottom end of the flexible circuit board 30 through tape.

[0033] In this embodiment, the two support frames 1 are fixed at both ends of a bottom plate 7. The top of the support frame 1 on the side corresponding to the driving motor 2 is fixedly provided with a motor mounting seat 21, and the driving motor 2 is mounted on the motor mounting seat 21. One end of each of the two adapter plates 8 is provided with a corresponding limit slot 81 at both ends of the folding plate 4. Both ends of the folding plate 4 are respectively detachably fixed in the limit slots 81, which is convenient for replacing the folding plate 4. One of the adapter plates 8 is fixed together with the rotating shaft, and the other adapter plate 8 is rotatably arranged at the top of the support frame 1. The utility model fixes the two support frames 1 on the bottom plate 7, which is convenient for handling and can meet different test environments or test sites. The folding plate 4 is designed into a detachable structure. When the folding plate 4 cannot meet the use requirements of special flexible circuit boards, the folding plate 4 can be disassembled and a folding plate 4 that meets the requirements can be installed, further improving the application range of this bending fixture.

[0034] To facilitate the monitoring of the bending condition of the flexible circuit board 30 and visually display the bending resistance effect of the flexible circuit board 30, an indicating module corresponding to the flexible circuit board 30 is further provided on the fixing jig 6, and the indicating module is connected to the flexible circuit board 30. Each flexible circuit board 30 has multiple lines. The indicating module includes an indicator light and an indicating circuit. The indicator light is installed on the indicating circuit board. The indicating circuit board is provided with indicator lights corresponding to the number of lines of the flexible circuit board and corresponding to the flexible circuit board. The flexible circuit board 30 is connected to the indicating circuit board through a cable connector, so that each line of the flexible circuit board 30 corresponds to an indicator light. When the flexible circuit board 30 is subjected to a bending test, the bending state of the flexible circuit board 30 can be visually displayed through the lighting and extinguishing of the indicator lights. The indicating module can also adopt a total indication method, that is, each flexible circuit board 30 is connected to an indicator light. Once a problem occurs in the line during the bending of the flexible circuit board 30, the indicator light can judge whether the line of the flexible circuit board 30 is normal by lighting a red light or extinguishing. A power supply module for supplying power to the flexible circuit board 30 is provided on the fixing jig 6. The power supply module is provided with a power connector corresponding to the flexible circuit board 30. The power supply module can adopt a mobile power supply or directly use a data cable for charging.

[0035] To facilitate the control of the bending parameters, the present utility model further provides a control panel connecting the driving motor 2 and the flexible circuit board 30. The control panel is connected to the display screen 9. The bending parameters, including the bending angle, the number of bending times, etc., can be controlled through the control panel. The number of bending times and the state of the flexible circuit board 30 can be visually displayed through the display screen 9, such as Figure 1 As shown, in this embodiment, the display screen 9 and the control panel are arranged on the top surface of the cabinet body 201.

[0036] When the high-temperature and high-humidity folding equipment of the present utility model is in use, the flexible circuit board 30 or the fixing jig 6 is fixed. One end of the flexible circuit board 30 protrudes outside the folding plate 4 and is fixed to the weight 5. The weight of the weight 5 always pulls down the flexible circuit board 30 protruding outside the folding plate 4. After all the flexible circuit boards 30 on the fixing jig 6 are fixed, the bending jig 10 is installed in the inner cavity 202 of the temperature and humidity adjustment cabinet 20. The specific fixing method can adopt methods such as snap-fastening, locking or magnetic attraction, or embedding and fitting, etc., so as to fix the bottom plate 7. When the folding plate 4 rotates, a bending part is formed at the edge position of the flexible circuit board 30 corresponding to the folding plate 4; the two support frames 1 support the folding plate 4 at a high position to facilitate the flipping of the folding plate 4. One end of the folding plate 4 is connected to the rotating shaft 3, and the rotating shaft 3 is connected to the driving motor 2. The driving motor 2 can drive the rotating shaft 3 to rotate, and then drive the folding plate 4 and the fixing jig 6 to move together. The folding angle and the number of folding times of the folding plate 4 are controlled by controlling the rotation direction and speed of the driving motor 2. After the flexible circuit board 30 is fixed to the folding plate 4, the downward pulling force provided by the weight 5 prevents the bending part from shifting, so as to truly reflect the bending resistance performance of the flexible circuit board 30. The temperature and humidity in the inner cavity of the temperature and humidity adjustment cabinet 20 can be adjusted in the temperature and humidity adjustment area 204 according to actual needs, so as to simulate the bending life test of the flexible circuit board 30 under high-temperature and high-humidity environment.

[0037] The above embodiments and drawings do not limit the product form and style of the present utility model. Any appropriate changes or modifications made by those of ordinary skill in the technical field to which it belongs shall be regarded as not departing from the patent scope of the present utility model.

Claims

1. A high temperature and high humidity folding device, characterized in that: Including bending jig and temperature and humidity control cabinet; The temperature and humidity regulating cabinet comprises a cabinet body, an inner cavity, a cabinet door, a temperature and humidity regulating area and a temperature and humidity display area. The inner cavity is arranged in the cabinet body, and the cabinet door can be opened and closed on one side of the inner cavity. The temperature and humidity regulating area and the temperature and humidity display area are arranged on the cabinet body. The bending jig can be detachably arranged in the inner cavity of the temperature and humidity regulating cabinet, and includes two support frames, a base frame, a driving motor, a rotating shaft, a folding plate and at least one weight arranged at intervals. The two support frames are fixed at both ends of a base plate. The driving motor is fixed on one of the support frames, one end of the rotating shaft is connected to the output shaft of the driving motor, and the other end of the rotating shaft is connected to one end of the folding plate. The other end of the folding plate is rotatably arranged on the other support frame, one end of the flexible circuit board is fixed on the folding plate, and the other end of the flexible circuit board protrudes to the end of the folding plate and is fixedly connected to the weight.

2. A high temperature and high humidity folding device as claimed in claim 1, characterized in that: The cabinet door is arranged in front of the cabinet body, and the cabinet door is made of transparent material or is provided with a transparent observation window. The temperature and humidity adjustment area and the temperature and humidity display area are arranged on the cabinet body below the cabinet door.

3. A high temperature and high humidity folding device as claimed in claim 1, characterized in that: The flexible circuit board is fixed on the folding plate by a fixing fixture, and the fixing fixture is detachably arranged on the folding plate.

4. A high temperature and high humidity folding device as claimed in claim 3, characterized in that: The fixing fixture includes an upper fixing plate and a lower fixing plate, and a plurality of sets of screw holes corresponding to each other are respectively arranged on the upper fixing plate, the lower fixing plate and the folding plate, and the upper fixing plate, the lower fixing plate and the folding plate are locked together by screws, and the flexible circuit board is arranged between the upper fixing plate and the lower fixing plate.

5. A high temperature and high humidity folding device as claimed in claim 3, characterized in that: A plurality of flexible circuit boards can be arranged side by side on the folding plate or the fixing fixture, and at least one weight is fixed to each flexible circuit board. The weight is fixed below the flexible circuit board or at the bottom end of the flexible circuit board, and adjacent flexible circuit boards are arranged at intervals.

6. A high temperature and high humidity folding device as claimed in claim 1, characterized in that: The top end of the support frame corresponding to one side of the driving motor is fixedly set on the motor mounting seat, and the driving motor is installed on the motor mounting seat. An adapter plate is respectively set at both ends of the folding plate, and one end of the two adapter plates is provided with corresponding limiting slots. The two ends of the folding plate are respectively detachably fixed in the limiting slots, one of which is fixed together with the rotating shaft, and the other adapter plate is rotatably set on the top end of the support frame.

7. A high temperature and high humidity folding device as claimed in any one of claims 3 to 5, characterized in that: The fixed fixture is also provided with an indication module corresponding to the flexible circuit board, the indication module is connected to the flexible circuit board, each flexible circuit board has multiple circuits, the indication module includes an indicator light and an indication circuit board, the indicator light is installed on the indication circuit board, the indication circuit board is provided with indicator lights corresponding to the number of flexible circuit board lines and corresponding to the flexible circuit board, the flexible circuit board is connected to the indication circuit board through a cable connector, so that each line of the flexible circuit board corresponds to an indicator light, and the fixed fixture is provided with a power supply module for powering the flexible circuit board, and the power supply module is provided with a power supply connector corresponding to the flexible circuit board.

8. A high temperature and high humidity folding device as claimed in any one of claims 3 to 5, characterized in that: The fixed fixture is also provided with an indication module corresponding to the flexible circuit board, the indication module has an indicator light, each flexible circuit board is connected to an indication module, and the fixed fixture is provided with a power supply module for powering the flexible circuit board, and the power supply module is provided with a power connector corresponding to the flexible circuit board.

9. The high temperature and high humidity winding device according to claim 1, characterized in that: The bending jig is also provided with a control panel connected to the driving motor and the flexible circuit board, the control panel is connected to the display screen, and the display screen and the control panel are arranged on the top surface of the cabinet.

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