Pressure maintaining device for flexible circuit board

Abstract

The utility model provides a pressure maintaining device for a flexible circuit board. The pressure maintaining device provided by the utility model comprises a carrier plate which is provided with a first side and a second side which are opposite to each other, and the carrier plate comprises a plurality of pressure measuring holes; the pressure assembly is arranged on the first side and comprises a plurality of pressing blocks corresponding to the pressure measuring holes, and the flexible circuit board is suitable for being arranged between the carrier plate and the pressure assembly; and the pressure measuring assembly is arranged on the second side and comprises a plurality of pressure sensors corresponding to the pressure measuring holes, and the pressure sensors can obtain the pressure borne by the flexible circuit board at each pressure measuring hole after the pressing block is pressed on the flexible circuit board. According to the technical scheme, the problem that a pressure maintaining device in the prior art cannot balance the pressure on the flexible circuit board is solved.

Description

Technical Field

[0001] The utility model relates to the field of flexible circuit boards, and specifically provides a pressure maintaining device for a flexible circuit board. Background Art

[0002] In the manufacturing process of flexible circuit boards, pressure-maintaining devices are widely used, such as maintaining pressure on various adhesives, FR4, steel sheets, etc. Since flexible circuit boards are in SUB (connected boards) state during the production process, high consistency requirements are placed on each single PCS in the SUB state. When the pressure-maintaining device in the prior art maintains pressure on the flexible circuit board, it is easy for each PCS on the circuit board to be unbalanced, which affects the yield rate of the final formed circuit board.

[0003] Therefore, this field needs a new technical solution to solve the above problems. Utility Model Content

[0004] In order to solve the problem that the pressure-maintaining device in the prior art cannot balance the pressure on the flexible circuit board, the utility model provides a pressure-maintaining device for the flexible circuit board. The pressure-maintaining device of the utility model includes: a carrier plate, the carrier plate has a first side and a second side opposite to each other, the carrier plate includes a plurality of pressure measuring holes; a pressure assembly, the pressure assembly is arranged on the first side and includes a plurality of pressure blocks corresponding to the pressure measuring holes, and the flexible circuit board is suitable for being arranged between the carrier plate and the pressure assembly; a pressure measuring assembly, the pressure measuring assembly is arranged on the second side and includes a plurality of pressure sensors corresponding to the pressure measuring holes, and the pressure sensors can obtain the pressure exerted on the flexible circuit board at each of the pressure measuring holes after the pressure blocks are pressed on the flexible circuit board.

[0005] The utility model adopts a carrier with pressure measuring holes for carrying circuit boards, so that the carrier can play a supporting role in the pressure-maintaining process and provide necessary conditions for the pressure measuring process. The pressure assembly is arranged on the first side, the flexible circuit board is suitable for being arranged between the carrier and the pressure assembly, and the pressure measuring assembly is arranged on the second side. Through the above configuration, the pressure block can provide pressure from the first side to the second side, so that the flexible circuit board forms a deformation toward the second side, so that the pressure measuring assembly can obtain the pressure value. The pressure assembly includes a plurality of pressure blocks corresponding to the pressure measuring holes, and the pressure measuring assembly includes a plurality of pressure sensors corresponding to the pressure measuring holes. The pressure sensor can obtain the pressure of the flexible circuit board at each of the pressure measuring holes after the pressure block is pressed on the flexible circuit board. Through the above configuration, the deformation of the flexible circuit board caused by each pressure block at the corresponding pressure measuring hole can be transmitted to the pressure sensor to obtain the pressure value at the corresponding pressure measuring hole, so as to facilitate the operator to make adjustments according to the measured pressure value, and finally make the pressure value at each pressure measuring hole consistent, thereby improving the pressure-maintaining effect.

[0006] In the preferred technical solution of the pressure-maintaining device for the flexible circuit board, when the pressure on the flexible circuit board at each of the pressure measuring holes is different, the pressure block can be replaced to make the pressure on the flexible circuit board at each of the pressure measuring holes the same. Through the above setting, after adjusting the pressure block, each PCS on the flexible circuit board in the connected state is subjected to the same pressure, the pressure-maintaining effect is good, and the yield rate of the final flexible circuit board is improved.

[0007] In the preferred technical solution of the pressure-maintaining device for a flexible circuit board, the pressure assembly further includes a pressure-applying assembly, and the pressure-applying assembly is used to apply pressure to the pressure block. Through the above arrangement, the pressure-applying device can provide a pressing force other than gravity to the pressure block, so as to improve the standardization of the pressure measurement process and make the measurement result more accurate.

[0008] In the preferred technical solution of the pressure-maintaining device for the flexible circuit board, the pressure assembly further includes a pressure block mounting plate, and the pressure block is detachably mounted on the side of the pressure block mounting plate facing the carrier plate. Through the above configuration, the pressure block can be detachably mounted on the pressure block mounting plate, which facilitates the adjustment of the specifications of the pressure block so that the pressure at each pressure measuring hole is consistent. In addition, through the setting of the pressure block mounting plate, the pressure applied by the pressure assembly to the pressure block directly acts on the pressure block mounting plate, so that the pressing force on each pressure block is evenly distributed.

[0009] In the preferred technical solution of the pressure-maintaining device for a flexible circuit board, each of the pressure sensors includes a first guide rod, which is suitable for abutting against the flexible circuit board at the pressure measuring hole. Through the above arrangement, the first guide rod abuts against the flexible circuit board so as to obtain a specific pressure value at the pressure measuring hole through deformation.

[0010] In the preferred technical solution of the pressure-maintaining device for the flexible circuit board, the first guide rod is made of rubber material. Through the above configuration, the flexible circuit board and the first guide rod will not form a circuit conduction, thereby ensuring the electrical safety of the flexible circuit board.

[0011] In the preferred technical solution of the pressure-maintaining device for the flexible circuit board, the pressure sensing part includes a first fixing plate, and the first fixing plate is provided with a plurality of first guide holes extending in the same direction, and each of the first guide rods is accommodated in a different first guide hole. Through the above configuration, the first guide rods are accommodated in a plurality of first guide holes extending in the same direction, and when the first guide rods are squeezed by the flexible circuit board at the pressure measuring hole, the direction of displacement generated by each first guide rod is the same, ensuring that the data determined by the displacement of the pressure sensor can accurately reflect the pressure at each pressure measuring hole.

[0012] In the preferred technical solution of the pressure-maintaining device for the flexible circuit board, each of the pressure sensors further comprises a second guide rod made of a rigid material, the second guide rod being arranged on a side of the first guide rod opposite to the carrier plate, and each of the second guide rods is in abutment with the corresponding first guide rod. The first guide rod made of rubber material will deform to a certain extent when transmitting displacement, and through the arrangement of the second guide rod, the rigid second guide rod transmits displacement to the sensing element in the pressure sensor, thereby ensuring the stability and accuracy of the pressure measurement result.

[0013] In the preferred technical solution of the pressure-maintaining device for a flexible circuit board, the pressure sensing part further includes a second fixing plate, the second fixing plate is arranged on a side of the first fixing plate opposite to the carrier plate, the second fixing plate is provided with a plurality of second guide holes extending in the same direction, and each second guide rod is accommodated in a different second guide hole. Through the above arrangement, the direction of displacement generated by each second guide rod is the same, ensuring that the data determined by the displacement of the pressure sensor can accurately reflect the pressure at each pressure measuring hole. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] The preferred embodiments of the present invention are described below in conjunction with the accompanying drawings, in which:

[0015] Figure 1 It is a structural schematic diagram of an embodiment of the pressure-maintaining device for a flexible circuit board of the utility model;

[0016] Figure 2 It is a front view of an embodiment of a pressure-maintaining device for a flexible circuit board of the utility model;

[0017] Figure 3 It is a partial schematic diagram of an embodiment of the pressure-maintaining device for a flexible circuit board of the utility model;

[0018] Figure 4 It is a partial exploded view of an embodiment of the pressure-maintaining device for a flexible circuit board of the utility model.

[0019] List of reference numerals:

[0020] 100, pressure-maintaining device; 10, carrier plate; 11, first side; 12, second side; 13, pressure measuring hole; 20, pressure assembly; 21, pressure block; 22, pressure-applying assembly; 221, driving device; 222, pressure plate; 23, pressure block mounting plate; 30, pressure measuring assembly; 31, pressure sensor; 311, first guide rod; 312, second guide rod; 313, sensing unit; 32, first fixing plate; 321, first guide hole; 33, second fixing plate; 331, second guide hole; 34, third fixing plate; 40, control panel; 50, housing. DETAILED DESCRIPTION

[0021] The preferred embodiments of the present invention are described below with reference to the accompanying drawings. It should be understood by those skilled in the art that these embodiments are only used to explain the technical principles of the present invention and are not intended to limit the protection scope of the present invention.

[0022] It should be noted that, in the description of the present invention, the terms “first” and “second” are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0023] In addition, it should be noted that in the description of the present invention, unless otherwise clearly specified and limited, the terms "disposed" and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a direct connection, an indirect connection through an intermediate medium, or the internal communication of two components. For those skilled in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0024] In order to solve the problem that the pressure-maintaining device in the prior art cannot balance the pressure on the flexible circuit board, the utility model provides a pressure-maintaining device 100 for the flexible circuit board. The pressure-maintaining device 100 of the utility model includes: a carrier 10, the carrier 10 has a first side 11 and a second side 12 opposite to each other, and the carrier 10 includes a plurality of pressure measuring holes 13; a pressure assembly 20, the pressure assembly 20 is arranged on the first side 11 and includes a plurality of pressure blocks 21 corresponding to the pressure measuring holes 13, and the flexible circuit board is suitable for being arranged between the carrier 10 and the pressure assembly 20; a pressure measuring assembly 30, the pressure measuring assembly 30 is arranged on the second side 12 and includes a plurality of pressure sensors 31 corresponding to the pressure measuring holes 13, and the pressure sensors 31 can obtain the pressure on the flexible circuit board at each pressure measuring hole 13 after the pressure block 21 is pressed on the flexible circuit board.

[0025] Figure 1 It is a structural schematic diagram of an embodiment of the pressure-maintaining device for a flexible circuit board of the utility model; Figure 2 1 is a front view of an embodiment of the pressure-maintaining device for a flexible circuit board of the utility model. Figure 1 and Figure 2 As shown, the pressure maintaining device 100 of the present invention includes a carrier plate 10 , a pressure assembly 20 and a pressure measuring assembly 30 .

[0026] Continue reading Figure 1 and Figure 2In one or more embodiments, the pressure-maintaining device 100 further includes a control panel 40. The control panel 40 is electrically connected to the pressure assembly 20 so that the operator can control the pressure output by the pressure measuring assembly 30 through the control panel 40. In one or more embodiments, the control panel 40 is also electrically connected to the pressure measuring assembly 30 so that the pressure value measured by the pressure measuring assembly 30 can be displayed on the control panel 40. Alternatively, other functions can be implemented through the control panel 40 according to actual needs; or the setting of the control panel 40 can be cancelled. In one or more embodiments, the pressure-maintaining device 100 further includes a housing 50. The carrier plate 10, the pressure assembly 20 and the pressure measuring assembly 30 are all arranged inside the housing 50. Alternatively, the setting of the housing 50 can also be cancelled.

[0027] Figure 3 It is a partial schematic diagram of an embodiment of the pressure-maintaining device for a flexible circuit board of the utility model; Figure 4 FIG. 1 is a partial exploded view of an embodiment of the pressure-maintaining device 100 for a flexible circuit board according to the present invention. Figure 3 and Figure 4 As shown, the carrier 10 includes a first side 11 and a second side 12 opposite to each other. The flexible circuit board is suitable for being placed on the first side 11. A plurality of pressure measuring holes 13 are provided on the carrier 10. In one or more embodiments, when the flexible circuit board is placed on the carrier 10, each pressure measuring hole 13 is located under a different PCS (PCS refers to a minimum unit in a flexible circuit board in a connected state that can eventually be separated and realize a predetermined function), so that the pressure on each PCS can be determined by detecting the pressure at the pressure measuring hole 13. Alternatively, the pressure measuring hole 13 can also be set at other suitable positions on the carrier 10 according to actual needs.

[0028] Continue reading Figure 4 The pressure assembly 20 is disposed on the first side 11 and is used to apply pressure to the flexible circuit board. The pressure assembly 20 includes a plurality of pressure blocks 21, and the pressure blocks 21 correspond to the pressure measuring holes 13 one by one for precise docking. In one or more embodiments, the pressure assembly 20 also includes a pressure assembly 22. The pressure assembly 22 includes a driving device 221 and a pressure plate 222 fixedly connected to the driving device 221. Based on Figure 2 In the position shown, the pressing plate 222 can be driven by the driving device 221 to move in the up and down direction. When the pressing plate 222 moves downward, the pressing plate 222 can apply pressure to the pressing block 21. Figure 4 In one or more embodiments, the pressure assembly 20 further includes a pressure block mounting plate 23, the pressure block 21 is mounted on a side of the pressure block mounting plate 23 facing the carrier plate 10, and the pressure block 21 is detachably connected to the pressure block mounting plate 23. Figure 2In the position shown, the upper surfaces of the pressing plate 222 and the pressing block mounting plate 23 match each other so that when the pressing plate 222 is pressed down, it abuts against the upper surface and uniformly transmits the pressure to each pressing block 21. Alternatively, the setting of the pressing block mounting plate 23 can be eliminated, and other suitable components can be used to fix the pressing blocks 21. Alternatively, the pressure assembly 22 can also be configured into other suitable structures according to actual needs.

[0029] Continue reading Figure 3 and Figure 4 The pressure measuring assembly 30 is disposed on the second side 12 to collect deformation data of the flexible circuit board under the action of the pressure block 21, and then obtain the pressure at each pressure measuring hole 13. The pressure measuring assembly 30 includes a plurality of pressure sensors 31, each of which corresponds to a different pressure measuring hole 13, so as to accurately collect data.

[0030] Continue reading Figure 4 In one or more embodiments, each pressure sensor 31 includes a first guide rod 311 and a sensing unit 313. The first guide rod 311 is suitable for abutting against the flexible circuit board through the pressure measuring hole 13 so as to transfer the deformation of the flexible circuit board to the sensing unit 313 to output the pressure value. In one or more embodiments, the first guide rod 311 is configured as a rubber rod to prevent the first guide rod 311 from forming a circuit connection with the flexible circuit board, thereby affecting the measurement result of the sensing unit 313 or damaging the flexible circuit board. Alternatively, the first guide rod 311 can also be configured as a rigid insulating rod, such as a plastic rod. In one or more embodiments, the pressure measuring assembly 30 also includes a first fixing plate 32. The first fixing plate 32 is provided with a plurality of first guide holes 321 extending in the same direction, and each first guide rod 311 is accommodated in a different first guide hole 321 so as to maintain the displacement direction of the first guide rod 311.

[0031] In the embodiment where the first guide rod 311 is configured as a rubber rod, each pressure sensor 31 further includes a second guide rod 312 disposed between the first guide rod 311 and the sensing unit 313. The second guide rod 312 is made of a rigid material, such as metal or plastic. The pressure measuring assembly 30 further includes a second fixing plate 33, on which a plurality of second guide holes 331 extending in the same direction are provided. Any second guide rod 312 is accommodated in a corresponding second guide hole 331 so as to maintain the displacement direction of the second guide rod 312. Alternatively, the second guide rod 312 and the second fixing plate 33 may also be eliminated.

[0032] Continue reading Figure 4In one or more embodiments, the pressure measuring assembly 30 further includes a third fixing plate 34, which is disposed on a side of the second fixing plate 33 opposite to the first fixing plate 32, and the first fixing plate 32, the second fixing plate 33 and the third fixing plate 34 are fixedly connected together. Each sensing unit 313 is disposed on the third fixing plate 34, so that when the flexible circuit board is deformed at the pressure measuring hole 13, the first guide rod 311 and the second guide rod 312 together transmit the deformation to the sensing unit 313, and at the same time, the first fixing plate 32, the second fixing plate 33 and the third fixing plate 34 form a whole and remain stationary to ensure the accuracy of the measurement data. Alternatively, the third fixing plate 34 may be omitted.

[0033] In one or more embodiments, when the pressure at each pressure measuring hole 13 displayed on the control panel 40 is different, the operator can replace the pressure block 21 of different specifications to adjust the pressure, and finally make the pressure at each pressure measuring hole 13 consistent, that is, ensure that the pressure on each PCS is consistent, so as to improve the pressure holding effect. Exemplarily, the pressure at the pressure measuring hole 13 is reduced by replacing it with a pressure block 21 with a lower height, and the pressure at the pressure measuring hole 13 is increased by replacing it with a pressure block 21 with a higher height. Alternatively, the pressure at each pressure measuring hole 13 can also be adjusted by other suitable methods.

[0034] So far, the technical solution of the present invention has been described in conjunction with the preferred embodiments shown in the accompanying drawings. However, it is easy for those skilled in the art to understand that the protection scope of the present invention is obviously not limited to these specific embodiments. Without departing from the principle of the present invention, those skilled in the art can make equivalent changes or substitutions to the relevant technical features, and the technical solutions after these changes or substitutions will fall within the protection scope of the present invention.

Claims

1. A pressure-maintaining device for a flexible circuit board, characterized in that: The pressure maintaining device comprises: a carrier plate having a first side and a second side opposite to each other, the carrier plate including a plurality of pressure measuring holes; A pressure assembly, the pressure assembly is arranged on the first side and includes a plurality of pressure blocks corresponding to the pressure measuring holes, and a flexible circuit board is arranged between the carrier board and the pressure assembly; A pressure measuring assembly is arranged on the second side and includes a plurality of pressure sensors corresponding to the pressure measuring holes, and the pressure sensors can obtain the pressure exerted on the flexible circuit board at each of the pressure measuring holes after the pressure block is pressed on the flexible circuit board.

2. The pressure-maintaining device for a flexible circuit board according to claim 1, characterized in that: When the pressures applied to the flexible circuit board at each of the pressure measuring holes are different, the pressure block can be replaced to make the pressures applied to the flexible circuit board at each of the pressure measuring holes the same.

3. The pressure-maintaining device for a flexible circuit board according to claim 1 or 2, characterized in that: The pressure assembly further comprises a pressure applying assembly, and the pressure applying assembly is used to apply pressure to the pressure block.

4. The pressure-maintaining device for a flexible circuit board according to claim 3, characterized in that: The pressure assembly further comprises a pressure block mounting plate, and the pressure block is detachably mounted on a side of the pressure block mounting plate facing the carrier plate.

5. The pressure-maintaining device for a flexible circuit board according to claim 1 or 2, characterized in that: Each of the pressure sensors includes a first guide rod, which is in abutment contact with the flexible circuit board located at the pressure measuring hole.

6. The pressure-maintaining device for a flexible circuit board according to claim 5, characterized in that: The first guide rod is made of rubber material.

7. The pressure-maintaining device for a flexible circuit board according to claim 5, characterized in that: The pressure measuring assembly includes a first fixing plate, on which a plurality of first guide holes extending in the same direction are provided, and each of the first guide rods is accommodated in a different first guide hole.

8. The pressure-maintaining device for a flexible circuit board according to claim 6, characterized in that: Each of the pressure sensors further includes a second guide rod made of a rigid material, the second guide rod being arranged on a side of the first guide rod opposite to the carrier plate, and each of the second guide rods is in abutment contact with the corresponding first guide rod.

9. The pressure-maintaining device for a flexible circuit board according to claim 8, characterized in that: The pressure measuring assembly also includes a second fixing plate, on which a plurality of second guide holes extending in the same direction are provided, and each of the second guide rods is accommodated in a different second guide hole.

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