An assembly aid for printed circuit boards

Abstract

The application relates to an assembly auxiliary device applied to a printed circuit board. The assembly auxiliary device applied to the printed circuit board comprises a limiting shell and a torsion transmission assembly. The limiting shell is provided with a limiting portion and a containing portion penetrating through the limiting shell. The containing portion is provided with a first opening and a second opening. The first opening is used for inserting an external fastener. The torsion transmission assembly is movably arranged in the containing portion and is used for receiving a torsion provided by an external torsion providing assembly, moving along the extension direction of the containing portion under the action of the torsion, abutting against the fastener and transmitting the torsion to the fastener, so as to assemble the fastener to the printed circuit board. The limiting portion is used for being arranged in a limiting assembly of the printed circuit board. In the above manner, the application can avoid the direct contact between a torsion providing assembly such as a screwdriver and the printed circuit board, reduce the risk of damaging the printed circuit board due to the operation failure of the torsion providing assembly, and is favorable for improving the pass rate of the printed circuit board.

Description

Technical Field

[0001] This application relates to the field of printed circuit board assembly technology, and in particular to an assembly auxiliary device for printed circuit boards. Background Technology

[0002] In the rapid development of the electronics industry, printed circuit boards (PCBs) have become one of the important carriers of hardware functions in environments such as server architecture and computers. In the actual production of PCBAs, more complex PCBAs usually involve structural component assembly. A PCBA is an audio circuit board formed by the entire process of mounting components on a bare PCB using surface mount technology or inserting components using dual in-line package technology.

[0003] However, during the production and assembly of PCBAs, PCB damage often occurs, affecting the quality and performance of the PCBAs and potentially even the first-pass yield of the PCBA products. Summary of the Invention

[0004] Therefore, it is necessary to provide an assembly auxiliary device for printed circuit boards that can avoid direct contact between torque-providing components such as screwdrivers and printed circuit boards, reduce the risk of damage to printed circuit boards due to operational errors of torque-providing components, and help improve the first-pass yield of printed circuit boards.

[0005] On one hand, an assembly auxiliary device for printed circuit boards is provided, comprising: a limiting housing and a torque transmission assembly; the limiting housing has a limiting portion and a receiving portion penetrating the limiting housing; the receiving portion has a first opening and a second opening, the first opening being disposed on the surface of the limiting housing, and the second opening being disposed on the surface of the limiting housing opposite to the first opening; wherein, the first opening is used for inserting an external fastener; the torque transmission assembly is movably disposed in the receiving portion for receiving torque provided by an external torque providing assembly that is close to the second opening relative to the first opening, and under the action of torque, the torque transmission assembly moves along the extension direction of the receiving portion, abuts against the fastener, and transmits torque to the fastener to assemble the fastener onto the printed circuit board; the limiting portion is used as a limiting assembly on the printed circuit board when the limiting housing is assembled onto the printed circuit board.

[0006] In one embodiment of this application, the torque transmission assembly includes an elastic member and a transmission member; the transmission member is used to abut against a fastener and a torque providing assembly, and moves along the extension direction to transmit torque to the fastener; the elastic member is disposed between the transmission member and the receiving portion, and the elastic member is in a compressed state when the transmission member transmits torque, and its elastic restoring force is used to drive the transmission member to reset.

[0007] In one embodiment of this application, the conductive member includes a first conductive part and a second conductive part; the end of the first conductive part away from the second conductive part is provided with a mounting groove for fitting a hex screwdriver; the end of the second conductive part away from the first conductive part is provided with a screwdriver head; wherein the screwdriver head is one of slotted, Phillips, star, Torx, or hexagonal.

[0008] In one embodiment of this application, the first conductive part and the second conductive part are integrally formed; the assembly auxiliary device includes a variety of conductive parts, and the screwdriver heads of different types of conductive parts are of different models.

[0009] In one embodiment of this application, the elastic element includes a spring bearing, which is disposed in the receiving portion and sleeved on the conductive element.

[0010] In one embodiment of this application, the assembly auxiliary device further includes a carrier and a cover plate; a limiting housing is disposed on the carrier, and the cover plate is disposed on the side of the limiting housing facing the carrier; the cover plate is provided with a positioning part communicating with the receiving part, the positioning part and the receiving part communicating to form a limiting channel and a transmission component; a torque transmission component is housed in the positioning part and the receiving part; wherein, the relative direction of the cover plate and the limiting housing is parallel to the extension direction of the receiving part and parallel to the extension direction of the positioning part; the light transmittance of the cover plate is higher than or equal to the light transmittance of the limiting housing.

[0011] In one embodiment of this application, the cover plate is made of transparent material; the limiting shell is made of colored material; and the bearing member is made of bakelite.

[0012] In one embodiment of this application, a fastener is used to be assembled into a mounting hole of a printed circuit board by torque. When the printed circuit board is assembled with the fastener, the printed circuit board is disposed between a carrier and a cover plate. The fastener is housed in a positioning part, with one end housed in the mounting hole and the other end abutting against a torque transmission component. The torque transmission component includes a first line and a second line, with the first line being farther away from the second opening relative to the second line. When the end of the torque transmission component away from the second opening is not subjected to a force in the direction of the second opening, both the first line and the second line are located in a limiting channel. When the fastener is placed in the mounting hole of the printed circuit board and abuts against the torque transmission component in a preset posture, the first line is located in the limiting channel, and the second line extends out from the housing part and is exposed to the outside. When the fastener is placed in the mounting hole and does not abut against the component in a preset posture, both the first line and the second line extend out from the limiting channel and are exposed to the outside.

[0013] In one embodiment of this application, when the end of the torque transmission component away from the second opening is not subjected to a force in the direction of the first opening, the end surface of the torque transmission component near the second opening is located on the same plane as the surface where the second opening is located.

[0014] In one embodiment of this application, the length of the limiting housing along the extension direction is 6mm to 15mm.

[0015] Unlike related technologies, the assembly auxiliary device for printed circuit boards in this application transmits torque through a torque transmission component. That is, the torque from the external torque supply component can act on the torque transmission component, which then abuts against the fastener to transmit the torque. This allows the fastener to be installed on the printed circuit board without the torque supply component directly contacting it. Simultaneously, a limiting housing is located on the surface of the printed circuit board. If the torque supply component malfunctions, the limiting housing can act as a barrier, reducing the risk of damage to the printed circuit board due to direct torque application. Furthermore, the receiving portion can limit the movement direction of the torque transmission component, reducing the risk of misalignment. The limiting portion also cooperates with the positioning component of the printed circuit board to limit the relative position of the assembly auxiliary device and the printed circuit board, thus preventing movement of the assembly auxiliary device relative to the printed circuit board and reducing misalignment during fastener assembly. Thus, this application, through a multi-level limiting structure and a strategy of providing indirect contact between components and fasteners using torque, can effectively reduce the defect rate of printed circuit boards during assembly, thereby increasing the pass rate of printed circuit boards, which is beneficial to improving the first-pass yield of printed circuit boards. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of an embodiment of the assembly auxiliary device for printed circuit boards applied in this application;

[0017] Figure 2 This is a schematic diagram illustrating an application scenario of an assembly auxiliary device for printed circuit boards according to an embodiment of this application;

[0018] Figures 3a-3b This is an application diagram of another embodiment of the assembly auxiliary device for printed circuit boards according to this application;

[0019] Figure 4 This is a schematic diagram of the structure of an embodiment of the torque transmission component of this application. Detailed Implementation

[0020] To make the objectives, technical solutions, and advantages of this application clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the scope of this application.

[0021] To address the technical problem in related technologies that printed circuit boards (PCBs) are easily damaged, even affecting product yield, this application provides an assembly auxiliary device for PCBs. The assembly auxiliary device for PCBs includes: a limiting housing and a torque transmission assembly; the limiting housing has a limiting portion and a receiving portion penetrating the limiting housing; the receiving portion has a first opening and a second opening, the first opening being located on the surface of the limiting housing, and the second opening being located on the surface of the limiting housing opposite to the first opening; wherein, the first opening is used for inserting an external fastener; the torque transmission assembly is movably disposed in the receiving portion, used to receive torque provided by an external torque supply assembly that is close to the second opening relative to the first opening; under the action of torque, the torque transmission assembly moves along the extension direction of the receiving portion, abuts against the fastener, and transmits torque to the fastener to assemble the fastener onto the PCB; the limiting portion is used to limit the PCB when the limiting housing is assembled onto the PCB.

[0022] As can be seen, the assembly auxiliary device for printed circuit boards in this application includes a limiting housing and a torque transmission component. The limiting housing can limit the position of the torque providing component and also limit the position of the assembly auxiliary device relative to the printed circuit board. The torque transmission component can transmit the torque of the torque providing component, such as a screwdriver, to the fasteners during assembly, thereby avoiding direct contact between the torque providing component and the printed circuit board, reducing the risk of damage to the printed circuit board due to operational errors of the torque providing component, which would affect the quality of the printed circuit board. The assembly auxiliary device for printed circuit boards in this application will be described in detail below.

[0023] Please refer to the following: Figure 1 as well as Figure 2 , Figure 1 This is a schematic diagram of an embodiment of the assembly auxiliary device for printed circuit boards according to this application. Figure 2 This is a schematic diagram illustrating an application scenario of an assembly auxiliary device for printed circuit boards according to an embodiment of this application.

[0024] In one embodiment, as the name suggests, the assembly aid 100 applied to the printed circuit board can be used during the production and assembly process of the printed circuit board. The assembly aid 100 can transmit the torque provided by the torque providing component 400, such as a screwdriver or wrench, to the fastener 300 that needs to be assembled onto the printed circuit board. The fastener 300 can be a screw, rivet, etc.

[0025] The specific structure of the assembly auxiliary device 100 in this embodiment will be described in detail below.

[0026] In this embodiment, the assembly auxiliary device 100 applied to the printed circuit board 200 may include a limiting housing 10 and a torque transmission component 20.

[0027] The limiting housing 10 may be provided with a limiting part 11 and a receiving part 12 that penetrates the limiting housing 10.

[0028] The limiting part 11 is used as a limiting component of the printed circuit board 200 when the limiting housing 10 is assembled on the printed circuit board 200.

[0029] For example, one of the limiting part 11 of the assembly aid 100 and the limiting component of the printed circuit board 200 can be a positioning post, and the other can be a positioning hole. The positioning post can be embedded in the positioning hole to limit the relative position of the assembly aid 100 and the printed circuit board 200, preventing relative displacement between them. Alternatively, the limiting part 11 and the limiting component can be a mating buckle or clip; or they can be a magnetic limiting device, etc., which is not limited here.

[0030] The accommodating portion 12 has a first opening 121 and a second opening 122.

[0031] The first opening 121 is provided on the surface of the limiting housing 10, and the second opening 122 is provided on the surface of the limiting housing 10 opposite to the first opening 121.

[0032] The first opening 121 is used for the fastener 300 to extend into the outside.

[0033] Torque transmission component 20 is movably disposed in receiving portion 12 for receiving torque provided by external torque supply component near second opening 122 relative to first opening 121. Under the action of torque, torque transmission component 20 moves along the extension direction X of receiving portion 1212 of receiving portion 12, abuts against fastener 300 and transmits torque to fastener 300 to assemble fastener 300 to printed circuit board 200.

[0034] During the assembly of the printed circuit board 200, the fastener 300 can be placed on the side of the torque transmission assembly 20 facing the printed circuit board 200, and the other end of the fastener 300 can abut against the corresponding mounting hole of the printed circuit board 200. The torque supply assembly 400 can abut against the end of the torque transmission assembly 20 away from the fastener 300. When the torque supply assembly 400 rotates to provide torque, the torque transmission assembly 20 can rotate with it and transmit the torque to the fastener 300, thereby locking the fastener 300 to the printed circuit board 200.

[0035] Optionally, the surfaces of the receiving portion 12 and the torque transmission component 20 facing each other can be smooth, or the surfaces of the two facing each other can be threaded, so as to facilitate the relatively smooth movement of the torque transmission component 20 relative to the receiving portion 12.

[0036] Therefore, in this embodiment, the assembly auxiliary device 100 applied to the printed circuit board 200 transmits torque through the torque transmission component 20. That is, the torque of the external torque providing component 400 can act on the torque transmission component 20, and the torque transmission component 20 abuts against the fastener 300 to transmit the torque to the fastener 300. Thus, the fastener 300 can be installed on the printed circuit board 200 without the torque providing component 400 directly contacting the printed circuit board 200.

[0037] Meanwhile, the limiting housing 10 is disposed on the surface of the printed circuit board 200. If there is an operational error in the torque supply component 400, such as misalignment or incorrect angle, it can easily lead to issues like misfiring, misalignment, damage to the fastener 300, or stripping of threads. In this embodiment, the limiting housing 10 can play a certain role in preventing damage, reducing the risk of the torque supply component 400 directly acting on the printed circuit board 200 and causing damage to the printed circuit board 200.

[0038] Meanwhile, the receiving portion 12 can limit the movement direction of the torque transmission component 20, which helps reduce the risk of the torque transmission component 20 deviating. Furthermore, the limiting portion 11 can cooperate with the positioning component of the printed circuit board 200 to limit the relative position of the assembly auxiliary device 100 and the printed circuit board 200, thus preventing the assembly auxiliary device 100 from moving relative to the printed circuit board 200 and reducing the offset of the fastener 300 during assembly. Therefore, in this embodiment, through a multi-level limiting structure and a strategy of indirect contact between the torque providing component 400 and the fastener 300, the defect rate of the printed circuit board 200 during assembly can be effectively reduced, thereby increasing the pass rate of the printed circuit board 200, which is beneficial to improving the first-pass yield of the printed circuit board 200.

[0039] Please refer to the following: Figure 1 , Figures 3a-3b as well as Figure 4 Figure 3 is a schematic diagram of another embodiment of the assembly auxiliary device of this application applied to printed circuit boards; Figures 3a-3b This is an application diagram illustrating another embodiment of the assembly auxiliary device for printed circuit boards according to this application. Figure 4 This is a schematic diagram of the structure of an embodiment of the torque transmission component of this application.

[0040] in, Figure 3a as well as Figure 3b Examples show the different positions of fastener 300. Figure 3a This can be considered as the initial state when the fastener 300 is assembled onto the printed circuit board 200. Figure 3b This can be considered as the completed state when the fastener 300 is assembled onto the printed circuit board 200, and is not limited here.

[0041] In one embodiment, the torque transmission assembly 20 includes an elastic element 21 and a transmission element 22.

[0042] The elastic element 21 is disposed between the conductor 22 and the receiving portion 12. When the conductor 22 transmits torque, the elastic element 21 is in a compressed state, and its elastic restoring force is used to drive the conductor 22 to reset. In this way, when the conductor 22 completes the current locking task, it can automatically reset through the elastic restoring force of the elastic element 21, without the need for additional torque provided by the torque providing component 400 to reset the conductor 22. This reduces the additional operational burden and improves the functionality of the assembly auxiliary device 100 in this embodiment.

[0043] Optionally, the elastic element 21 includes a spring bearing, which is disposed in the receiving portion 12 and sleeved on the conductive element 22. In this case, the spring bearing can adapt to different structures of the conductive element 22, which helps maintain the reliable stopping of the conductive element 22 relative to it, thus reducing the occurrence of tilting or offset of the conductive element 22 relative to the elastic element 21. This, in turn, helps improve the reliability of the fastener 300 installation and increases the product first-pass yield of the printed circuit board 200.

[0044] In an alternative embodiment, the elastic element 21 may also include elastically deformable rubber or springs, etc., without limitation.

[0045] In this embodiment, the conductive member 22 can abut against the fastener 300 and the torque providing component 400, and move along the extension direction X to transmit torque to the fastener 300, thereby reducing the direct contact between the torque providing component 400 and the fastener 300, reducing the risk of damage to the printed circuit board 200 when the torque providing component 400 is operated incorrectly, and helping to improve the first pass rate of the printed circuit board 200.

[0046] Furthermore, the conductive member 22 may include a first conductive part 221 and a second conductive part 222.

[0047] The first conductive part 221 has a mounting groove 2211 at its end away from the second conductive part 222. The mounting groove 2211 is used to accommodate a hexagonal screwdriver. Compared to a circular mounting groove 2211, the hexagonal mounting groove 2211 reduces the allowance between the mounting groove 2211 and the torque supply component 400 when assembling the hexagonal screwdriver, thus effectively reducing the occurrence of misalignment of the torque supply component 400 and further improving the product's first-pass yield. In simpler terms, the first conductive part 221 may be equipped with a hexagonal sleeve.

[0048] In an alternative embodiment, the cross-section of the mounting groove 2211 can also be triangular, circular, square, etc., and is not limited thereto.

[0049] The end of the second conductive part 222 away from the first conductive part 221 is provided with a screwdriver head 2221.

[0050] Among them, the screwdriver head model 2221 is one of the following: flathead, Phillips head, starhead, Torx head, and hexagonal head.

[0051] Furthermore, the assembly auxiliary device 100 includes various transmission components 22, and the screwdriver heads 2221 of different types of transmission components 22 are of different models.

[0052] In other words, an assembly aid 100 may have multiple sets of receiving parts 12 and torque transmission components 20. The screwdriver heads 2221 of each torque transmission component 20 may be of different types to accommodate the different types of screws and other fasteners 300 required by the printed circuit board 200.

[0053] At the same time, while the various conductive parts 22 have different screwdriver head types 2221, the mounting part of the second conductive part 222 can all be a hexagonal socket that is compatible with hexagonal screwdrivers. Therefore, in the production and assembly of the printed circuit board 200, it is not necessary to prepare torque supply components 400 with multiple screwdriver head types, which helps to reduce cumbersome preparation work. At the same time, it can also reduce the risk of production efficiency and product quality being affected by incorrect preparation / use of torque supply components 400.

[0054] Optionally, the first conductive part 221 and the second conductive part 222 can be integrally formed, which can reduce the risk of errors in assembling the conductive part 22 during the production process, and can adapt to different printed circuit boards 200 to form an assembly auxiliary device 100 adapted to it. When assembling the printed circuit board 200, the corresponding assembly auxiliary device 100 can be directly picked up, improving the reliability and convenience of the assembly auxiliary device 100.

[0055] In an alternative embodiment, the first conductive part 221 and the second conductive part 222 are detachably connected. The assembly auxiliary device 100 may have a second conductive part 222 with various screwdriver head models. The second conductive part 222 can be replaced according to the type of fastener 300, thereby improving the functionality of the torque transmission assembly 20.

[0056] In one embodiment, the receiving portion 12 may have two segments, wherein the first segment is a segment relative to the second opening 122 and closer to the first opening 121, and the second segment is a segment relative to the first opening 121 and closer to the second opening 122. That is, the first segment is a segment that receives the torque transmission component 20, and the second segment is a segment that extends into the torque providing component 400.

[0057] The diameter of the second segment can be smaller than that of the first segment, and the diameter of the second segment can be smaller than that of the torque transmission component 20, so as to prevent the torque transmission component 20 from disengaging from the second opening 122 of the housing 12 and detaching from the limiting housing 10, which is beneficial to improving the structural reliability of the assembly auxiliary device 100.

[0058] Please continue reading. Figure 1 as well as Figures 3a-3b In one embodiment, the assembly aid 100 further includes a support member 40 and a cover plate 30.

[0059] The limiting housing 10 is provided on the bearing member 40, and the cover plate 30 is provided on the side of the limiting housing 10 facing the bearing member 40.

[0060] The cover plate 30 is provided with a positioning part 31 that communicates with the receiving part 12. The positioning part 31 and the receiving part 12 communicate to form a limiting channel and a transmission component.

[0061] Torque transmission assembly 20 is housed in positioning part 31 and housing part 12. The relative direction of cover plate 30 and limiting housing 10 is parallel to the extension direction X of housing part 12 and parallel to the extension direction X of positioning part 31.

[0062] In other words, when assembling the printed circuit board 200, the extension direction X of the accommodating part 12 is parallel to the direction of gravity.

[0063] The light transmittance of the cover plate 30 is higher than or equal to that of the limiting housing 10. In other words, the light transmittance of the cover plate 30 can be higher than that of the limiting housing 10, or the light transmittance of the cover plate 30 can be the same as that of the limiting housing 10. Light transmittance refers to the ability of light to pass through; higher transmittance means better light penetration. Simply put, transparent materials have higher light transmittance than iron materials.

[0064] For example, the cover plate 30 can be made of a transparent material. The limiting housing 10 can be made of a colored material, such as black. The support member 40 can be made of bakelite.

[0065] Please continue reading. Figure 1 as well as Figures 3a-3b In one embodiment, as described above, the fastener 300 can be fitted into the mounting holes of the printed circuit board 200 by torque.

[0066] Therefore, when the printed circuit board 200 is assembled with the fastener 300, the printed circuit board 200 is located between the carrier 40 and the cover plate 30, the fastener 300 is housed in the positioning part 31, and one end of the fastener is housed in the mounting hole, while the other end abuts against the torque transmission component 20.

[0067] In this embodiment, to further confirm whether the fastener 300 and the torque transmission component 20 are reliably abutted, and to facilitate the user to understand the relative position of the assembly, the torque transmission component 20 in this embodiment may include a first line 223 and a second line 224, with the first line 223 being farther away from the second opening 122 relative to the second line 224.

[0068] When the end of the torque transmission component 20 away from the second opening 122 is not subjected to a force in the direction of the second opening 122, both the first line 223 and the second line 224 are located in the limiting channel; when the fastener 300 is placed in the mounting hole of the printed circuit board 200 and abuts against the torque transmission component 20 in a preset posture, the first line 223 is located in the limiting channel, and the second line 224 extends out from the receiving part 12 and is exposed to the outside; when the fastener 300 is placed in the mounting hole and does not abut against it in a preset posture, both the first line 223 and the second line 224 extend out from the limiting channel and are exposed to the outside.

[0069] Thus, in this embodiment, by observing whether the first line 223 and the second line 224 are exposed outside the receiving part 12, the user can easily distinguish whether the torque transmission component 20 is tilted, thereby pre-confirming whether the fastener 300 can be reliably installed, rather than only being able to remedy the situation when an abnormality occurs, thus improving the reliability of the assembly auxiliary device 100.

[0070] Optionally, the color of the first bit line 223 and the color of the second bit line 224 can be different to facilitate the distinction between the first bit line 223 and the second bit line 224. The first bit line 223 and the second bit line 224 can be the conductive element 22 described in the preceding embodiments. In an alternative embodiment, the first bit line 223 and the second bit line 224 can also be located in other newly added components, which will not be elaborated here.

[0071] For example, the first line 223 can be red and the second line 224 can be green; or, the first line 223 can be green and the second line 224 can be black, etc.

[0072] Please continue reading. Figure 1 as well as Figures 3a-3bIn one embodiment, when the end of the torque transmission component 20 away from the second opening 122 is not subjected to a force in the direction of the first opening 121, the end surface of the torque transmission component 20 near the second opening 122 is located on the same plane as the surface where the second opening 122 is located. Therefore, this embodiment facilitates clear confirmation of whether there are fasteners 300 or other foreign objects below the printed circuit board 200 near the torque transmission component 20. It also facilitates confirmation of whether the torque transmission component 20 has reliably reset during printed circuit board assembly. If the torque transmission component 20 has not reliably reset, there will be a height difference between its end surface near the second opening 122 and the surface of the limiting housing 10. This allows the user to promptly detect and troubleshoot any abnormalities in the assembly auxiliary device 100, thereby reducing the impact of abnormalities in the assembly auxiliary device 100 on the subsequent assembly of the printed circuit board 200, and thus improving the reliability of the assembly auxiliary device 100 in this embodiment.

[0073] In an alternative embodiment, the end surface of the torque transmission component 20 near the second opening 122 may be lower than the surface where the second opening 122 is located, i.e. closer to the first opening 121, thereby protecting the end of the torque transmission component 20 and reducing the risk of wear or damage to the end near the second opening 122 from other objects.

[0074] Please continue reading. Figure 1 as well as Figures 3a-3b In one embodiment, the length of the limiting housing 10 along the extending direction X of the accommodating portion 12 is 6mm to 15mm. In simpler terms, the thickness of the limiting housing 10 is 6mm to 15mm. Thus, by using a reasonable thickness for the limiting housing 10 in this embodiment, the risk of breakage due to excessive torque caused by an excessively thin limiting housing 10 can be reduced. It also reduces the risk of an excessively thick limiting housing 10 increasing the size of the assembly auxiliary device 100. Furthermore, it facilitates compatibility with various types of torque supply components 400 and fasteners 300.

[0075] For example, the length of the limiting housing 10 along the extending direction X of the accommodating portion 12 can be 6mm, 7mm, 8.5mm, 9.23mm, 10mm, 11.5mm, 13mm, 15mm, etc., which will not be elaborated here.

[0076] In summary, the assembly auxiliary device of this application, through the addition of a limiting housing and related designs of the torque transmission component, allows the cover plate to protect the PCBA. Furthermore, the screw hole design for screw adaptation is more refined, preventing damage to the more expensive PCBA from stress during screw tightening and accidental operation. This effectively improves PCBA quality and reduces the risk of potential damage. Simultaneously, this application allows for the design of a separate assembly auxiliary device for each different PCBA. In this device, the position of the torque transmission component and the screwdriver head type are pre-matched and positioned according to the location of each fastener and the type of screwdriver head. When assembling the PCBA, the appropriate assembly auxiliary device can be directly used. Through standardized design, a hexagonal screwdriver can be used as the torque supply component, eliminating the need for frequent changes of different screwdriver head types and the problem of needing to prepare different screwdriver heads for different screws.

[0077] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0078] The embodiments described above are merely illustrative of several implementation methods of this application, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the invention patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these all fall within the protection scope of this application. Therefore, the protection scope of this patent application should be determined by the appended claims.

[0079] Furthermore, in this invention, unless otherwise explicitly specified and limited, the terms "connected," "linked," "stacked," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0080] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, and not to limit them; although the present invention 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; and 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 embodiments of the present invention.

Claims

1. An assembly auxiliary device for printed circuit boards, characterized in that, The assembly auxiliary device includes: A limiting housing is provided with a limiting part and a receiving part that penetrates the limiting housing; the receiving part has a first opening and a second opening, the first opening is provided on the surface of the limiting housing, and the second opening is provided on the surface of the limiting housing opposite to the first opening; wherein, the first opening is used for inserting an external fastener. A torque transmission component is movably disposed in the receiving portion for receiving torque provided by an external torque supply component that is close to the second opening relative to the first opening. Under the action of torque, the torque transmission component moves along the extension direction of the receiving portion, abuts against the fastener, and transmits torque to the fastener to assemble the fastener onto the printed circuit board. The limiting part is used to be disposed on the limiting assembly of the printed circuit board when the limiting housing is assembled on the printed circuit board; Supporting components and cover plates; The limiting housing is disposed on the bearing member, and the cover plate is disposed on the side of the limiting housing facing the bearing member; The cover plate is provided with a positioning part that communicates with the receiving part, and the positioning part and the receiving part communicate to form a limiting channel; the torque transmission component is housed in the positioning part and the receiving part; Wherein, the relative direction between the cover plate and the limiting housing is parallel to the extending direction of the receiving portion and parallel to the extending direction of the positioning portion; the light transmittance of the cover plate is higher than or equal to the light transmittance of the limiting housing; The fastener is used to be fitted into the mounting holes of the printed circuit board by torque; When the printed circuit board is assembled with the fastener, the printed circuit board is located between the carrier and the cover plate, the fastener is housed in the positioning part, one end of which is housed in the mounting hole, and the other end abuts against the torque transmission component; The torque transmission component includes a first bit line and a second bit line, wherein the first bit line is farther away from the second opening relative to the second bit line; When the end of the torque transmission component away from the second opening is not subjected to a force in the direction of the second opening, both the first position line and the second position line are located in the limiting channel; When the fastener is placed in the mounting hole of the printed circuit board and abuts against the torque transmission component in a preset posture, the first position line is located in the limiting channel, and the second position line extends out from the limiting channel and is exposed to the outside. When the fastener is placed in the mounting hole and does not abut in the preset posture, both the first position line and the second position line extend out from the limiting channel and are exposed to the outside.

2. The assembly auxiliary device according to claim 1, characterized in that, The torque transmission assembly includes an elastic element and a transmission element; The conductive member is used to abut against the fastener and the torque providing component, and moves along the extending direction to transmit torque to the fastener; The elastic element is disposed between the conductive element and the receiving portion. When the conductive element transmits torque, the elastic element is in a compressed state, and its elastic restoring force is used to drive the conductive element to reset.

3. The assembly auxiliary device according to claim 2, characterized in that, The conductive component includes a first conductive part and a second conductive part; The end of the first conductive part away from the second conductive part is provided with a mounting groove, which is used to fit a hex screwdriver. The end of the second conductive part away from the first conductive part is provided with a screwdriver head; wherein the screwdriver head is one of the following types: flathead, Phillips head, starhead, Torx head, and hexagonal head.

4. The assembly auxiliary device according to claim 3, characterized in that, The first conductive part and the second conductive part are integrally formed; The assembly auxiliary device includes various conductive components, and the screwdriver heads of different types of conductive components have different models.

5. The assembly auxiliary device according to claim 2, characterized in that, The elastic element includes a spring bearing, which is disposed in the receiving portion and sleeved on the conductive element.

6. The assembly auxiliary device according to claim 1, characterized in that, The cover plate is made of transparent material; the limiting shell is made of colored material; and the bearing member is made of bakelite.

7. The assembly auxiliary device according to claim 1, characterized in that, When the end of the torque transmission component away from the second opening is not subjected to a force in the direction of the second opening, the surface of the end of the torque transmission component near the second opening is on the same plane as the surface where the second opening is located.

8. The assembly auxiliary device according to claim 1, characterized in that, The length of the limiting housing along the extending direction is 6mm to 15mm.

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