Circuit board assembly, assembling jig and assembling method thereof, and electronic equipment

Abstract

The invention provides a circuit board assembly, an assembling jig and an assembling method thereof, and electronic equipment. Comprising a jig body, an object placing table, a retaining wall and a sliding block, the object placing table is embedded in the jig body, and the object placing table comprises a connecting face and a circuit board body used for fixing the flexible circuit board; at least part of the retaining wall can be exposed out of the object placing table and is arranged in a protruding mode relative to the connecting face, the retaining wall is used for abutting against a contact part of the flexible circuit board, and the contact part is connected with the circuit board body and bent relative to the circuit board body; the sliding block is connected to the jig body in a sliding mode and provided with a limiting groove penetrating through the sliding block in the thickness direction of the sliding block, the limiting groove is used for fixing the contact part abutting against the retaining wall when the sliding block slides to be close to the retaining wall so that the contact part can penetrate through the penetrating hole of the fixing support, and the limiting groove is further used for being separated from the contact part when the sliding block slides to be away from the retaining wall so that the contact part can penetrate through the fixing support. Therefore, the circuit board body is fixedly connected with the fixing support. According to the technical scheme, the assembling difficulty of the circuit board assembly can be reduced, and the working efficiency is improved.

Description

Technical Field

[0001] This application relates to the field of electronic equipment technology, and in particular to a circuit board assembly, its assembly fixture and assembly method, and electronic equipment. Background Technology

[0002] Circuit board assemblies are an indispensable part of electronic devices, primarily responsible for connecting and supporting various electronic components to ensure the normal operation of the device. A circuit board assembly includes a flexible circuit board, a mainboard, and a mounting bracket. Because the assembly requirements of circuit board assemblies not only necessitate that the flexible circuit board and the mainboard be mounted on opposite sides of the mounting bracket, but also that the flexible circuit board be electrically connected to the mainboard, a portion of the flexible circuit board's structure must pass through the mounting bracket to complete the through-hole assembly, enabling electrical connection between the flexible circuit board and the mainboard. However, existing through-hole assembly methods for flexible circuit boards and mounting brackets tend to result in significant assembly difficulties and low work efficiency. Summary of the Invention

[0003] The embodiments of this application provide a circuit board assembly, its assembly fixture and assembly method, and an electronic device, which can reduce the assembly difficulty of the circuit board assembly and improve work efficiency.

[0004] In a first aspect, this application provides a circuit board assembly fixture, the circuit board assembly fixture comprising:

[0005] Fixture body;

[0006] A storage platform is embedded in the fixture body, and the storage platform includes a connecting surface for fixing the circuit board body of the flexible circuit board.

[0007] A retaining wall, at least a portion of which is exposed outside the shelf and protrudes relative to the connecting surface, is used to abut against a contact portion of the flexible circuit board, the contact portion being connected to the circuit board body and bent relative to the circuit board body; and

[0008] A slider is slidably connected to the fixture body. The slider is provided with a limiting groove that extends through the slider along its thickness direction. The limiting groove is used to fix the contact portion abutting against the retaining wall when the slider slides close to the retaining wall, so that the contact portion passes through the through hole of the fixing bracket. The limiting groove is also used to separate from the contact portion when the slider slides away from the retaining wall, so that the circuit board body is fixedly connected to the fixing bracket.

[0009] Understandably, in related technologies, assembling a flexible circuit board (PCB) with a mounting bracket requires workers to first pass the PAD points (i.e., the parts of the PCB that interconnect with other components) through the mounting bracket, and then fix the PCB to the bracket, thus completing the through-hole assembly. However, in the actual assembly process, workers not only find it difficult to align the PAD points of the PCB with the holes on the mounting bracket, but also struggle to align the PCB and bracket after passing the PAD points through the holes. This can easily lead to misalignment after bonding, resulting in greater assembly difficulty, lower assembly efficiency, and a lower finished product qualification rate.

[0010] Therefore, in the embodiments of this application, by setting a retaining wall and making at least a portion of the retaining wall protrude relative to the connecting surface of the platform, after the flexible circuit board is placed on the platform, the connecting surface of the platform can fix the circuit board body of the flexible circuit board, and the retaining wall abuts against the contact portion of the flexible circuit board, thereby causing the contact portion of the flexible circuit board to bend relative to the circuit board body. Furthermore, the retaining wall can fix the contact portion of the flexible circuit board through its abutting relationship with the contact portion, helping to maintain the bent state of the contact portion relative to the circuit board body, thus providing excellent support performance for the contact portion of the flexible circuit board. This ensures that the contact portion of the flexible circuit board will not misalign or deform during subsequent perforation, which is beneficial to improving the perforation accuracy of the flexible circuit board and the fixing bracket, and improving the assembly accuracy of the flexible circuit board and the fixing bracket.

[0011] By setting a slider with a limiting groove, the limiting groove can not only clamp the contact part of the flexible circuit board when the slider slides relative to the fixture body close to the retaining wall, precisely positioning the contact part and keeping it vertical, thus allowing the contact part of the flexible circuit board to pass through the through hole of the fixed bracket accurately and quickly, further achieving precise control over the position of the contact part of the flexible circuit board, improving the operational accuracy and efficiency of the hole-punching process, but also disengage the limiting groove from the contact part of the flexible circuit board when the slider slides relative to the fixture body away from the retaining wall. Since the contact part of the flexible circuit board has already been aligned with the through hole of the fixed bracket, and the circuit board body of the flexible circuit board is accurately aligned with the fixed bracket, the fixed bracket and the circuit board body can be easily aligned and connected after the limiting groove disengages from the contact part of the flexible circuit board, completing the through-hole assembly of the flexible circuit board and the fixed bracket, and ensuring the accuracy of the alignment between the flexible circuit board and the fixed bracket.

[0012] In summary, circuit board assembly fixtures offer advantages such as simple component structure, convenient alignment operation, and high alignment accuracy. Therefore, when flexible circuit boards and fixed supports are placed in circuit board assembly fixtures for through-hole assembly, it helps reduce the assembly difficulty of through-hole assembly of flexible circuit boards and fixed supports, improves the work efficiency of through-hole assembly of flexible circuit boards and fixed supports, reduces the assembly cost of circuit board assemblies and the fatigue of workers, and improves the assembly consistency and product quality of the assembled circuit board assemblies, resulting in excellent reliability.

[0013] In one possible implementation, the connecting surface is provided with an air suction hole, which is spaced apart from the baffle wall. The air suction hole is used to hold the circuit board body tightly against the connecting surface and to hold the contact portion against the baffle wall when adsorbing the flexible circuit board, so that the contact portion bends relative to the circuit board body.

[0014] Understandably, because the suction port continuously draws in air, the contact portion of the flexible circuit board remains in contact with the baffle wall under the suction force, allowing the baffle wall to continuously apply force to the contact portion of the flexible circuit board. Under the combined action of the baffle wall and the suction port, the contact portion of the flexible circuit board will bend and deform relative to the circuit board body and be fixed to the baffle wall. At this point, the contact portion of the flexible circuit board will bend once relative to the circuit board body and become vertical, and the direction of this bend can be fixed by the baffle wall.

[0015] Furthermore, since the air intake can continuously draw in air, the flexible circuit board is less prone to shaking or displacement after being fixed to the connection surface. This helps to avoid problems such as skewing or displacement of the flexible circuit board during subsequent perforation assembly with the fixed bracket, ensuring the positional stability and reliability of the flexible circuit board during the assembly process, and improving the yield and production efficiency of the circuit board assembly.

[0016] In one possible implementation, the circuit board assembly fixture further includes a first positioning post, at least a portion of which is able to protrude relative to the connecting surface. The first positioning post is spaced apart from both the retaining wall and the air intake hole, and is used to insert into the first positioning hole of the circuit board body.

[0017] Understandably, the first positioning post can provide excellent positioning performance for the flexible circuit board, which is conducive to the rapid positioning of the platform and the flexible circuit board and improves the assembly efficiency between the platform and the flexible circuit board.

[0018] In one possible implementation, the fixture body includes a first mold and a second mold, the platform is fixedly connected to the first mold, and the second mold surrounds the platform and is vertically and vertically connected to the first mold.

[0019] One end of the first positioning post is vertically connected to the first mold body. The first positioning post passes through the platform and the other end of the first positioning post protrudes from the connecting surface. The first positioning post can descend relative to the connecting surface after being pressed and return to its original position after the pressure is removed.

[0020] Understandably, since the first positioning post can descend relative to the connecting surface of the platform after being pressed, it can be driven by the fixed bracket to descend relative to the connecting surface of the platform after contacting the fixed bracket, thus retracting into the platform and avoiding the fixed bracket. Furthermore, the first positioning post can also return to its protruding position relative to the platform after separating from the fixed bracket. In other words, during the assembly process of the fixed bracket and the flexible circuit board, the first positioning post can be flexibly stored in the platform or protruding relative to the platform according to the specific application scenario, without the need for additional clearance holes on the fixed bracket. This achieves both clearance and storage of the first positioning post, which helps to save on the assembly process of the circuit board assembly and improve the yield of the finished circuit board assembly.

[0021] And / or, one end of the retaining wall is vertically connected to the first mold body, the retaining wall passes through the platform, the other end of the retaining wall protrudes from the connecting surface, and the retaining wall can descend relative to the connecting surface after being pressed and reset after the pressure is removed.

[0022] Understandably, since the retaining wall can descend relative to the connecting surface of the shelf under pressure, it can be driven by the fixed bracket to descend relative to the connecting surface of the shelf after contacting the fixed bracket, thus retracting into the shelf and avoiding the fixed bracket. Furthermore, the retaining wall can also return to its protruding position relative to the shelf after separating from the fixed bracket. In other words, during the assembly process of the fixed bracket and the flexible circuit board, the retaining wall can be flexibly stored in the shelf or protruding relative to the shelf according to the specific application scenario, without the need for additional clearance holes on the fixed bracket to avoid the retaining wall. This achieves both clearance and storage of the retaining wall, which helps to save on the assembly process of the circuit board assembly and improve the yield of the finished circuit board assembly.

[0023] In one possible implementation, the retaining wall is provided with a groove that is recessed from the outer surface of the retaining wall to the interior of the retaining wall, and the groove also extends through the end face of the retaining wall away from the connecting surface, and the groove is used to accommodate a portion of the contact portion.

[0024] Understandably, by setting a slot on the retaining wall, the slot can be engaged with the contact part of the flexible circuit board, thereby fixing the contact part of the flexible circuit board to the retaining wall, which further improves the connection stability and reliability between the contact part of the retaining wall and the flexible circuit board.

[0025] In one possible implementation, the fixture body is provided with a sliding groove, which is disposed adjacent to the platform;

[0026] The slider is connected to the slide groove, and the slider can slide relative to the fixture body between a first position and a second position in a direction that is close to or far from the retaining wall;

[0027] When the slider is in the first position, a portion of the slider's projection along the thickness direction of the circuit board assembly fixture falls onto the platform, and the retaining wall and the limiting groove are arranged opposite to each other in the thickness direction of the circuit board assembly fixture.

[0028] When the slider is in the second position, the slider is misaligned with and spaced apart from the retaining wall.

[0029] Understandably, by sliding the slider relative to the fixture body along a direction close to or far from the retaining wall between a first position and a second position, the slider's limiting groove can be aligned with the retaining wall when the slider slides to the first position. On one hand, aligning the slider's limiting groove with the retaining wall further limits the contact portion of the flexible circuit board abutting against the retaining wall, thereby precisely positioning the contact portion of the flexible circuit board and improving its positioning accuracy. On the other hand, aligning the slider's limiting groove with the retaining wall fixes the protrusion direction of the flexible circuit board's contact portion and provides good support for it. This helps prevent positional deviations caused by wobbling during subsequent perforation assembly with the fixed bracket, allowing the slider's limiting groove to control the contact portion of the flexible circuit board to remain vertical and preventing deformation or displacement.

[0030] In one possible implementation, the slide includes a first groove and a second groove, the first groove and the second groove being sequentially arranged and connected in the thickness direction of the circuit board assembly assembly fixture, and the opening of the first groove being located on the bottom wall of the second groove.

[0031] The slider includes a sliding seat and an extension body. The sliding seat is connected to the first groove and can slide relative to the fixture body along the first groove. The extension body is fixedly connected to the sliding seat. Part of the extension body is stacked with the sliding seat. The end of the extension body away from the sliding seat is provided with the limiting groove. At least part of the extension body is located in the second groove. The extension body can be driven by the sliding seat and slide relative to the fixture body along the second groove to move closer to or away from the retaining wall.

[0032] It is understandable that by including a sliding seat and an extension body in the slider, and mounting the sliding seat in the first groove and the extension body in the second groove, the extension body can slide along the second groove relative to the fixture body when the sliding seat slides along the first groove relative to the fixture body. During the sliding of the extension body along the second groove relative to the fixture body, the end of the extension body away from the sliding seat can slide to cover the retaining wall, allowing the limiting groove at that end to be positioned opposite the retaining wall to clamp the contact portion of the flexible circuit board abutting against the retaining wall. Alternatively, the end of the extension body away from the sliding seat can also slide to expose the retaining wall, allowing the limiting groove at that end to be misaligned with the retaining wall, thereby separating the limiting groove from the contact portion of the flexible circuit board abutting against the retaining wall. In other words, by designing the structure of the slider and the sliding connection between the slider and the fixture body, the fixing or separation of the limiting groove of the slider and the contact portion of the flexible circuit board can be achieved conveniently and quickly, simplifying operation and improving the assembly efficiency of the circuit board assembly.

[0033] In one possible implementation, the circuit board assembly fixture further includes a guide post located in the first groove and fixedly connected to the fixture body. The guide post includes a first end and a second end. The sliding seat is sleeved on the guide post and is slidable between the first end and the second end.

[0034] When the sliding seat is located at the first end, the end of the extension body away from the sliding seat is in the first position; when the sliding seat is located at the second end, the end of the extension body connected to the sliding seat is in the second position.

[0035] Understandably, the slider can reciprocate between the first and second positions along the guide post. When the slider moves to the first position near the retaining wall, the slider's limiting groove can limit the contact portion of the flexible circuit board abutting against the retaining wall. Furthermore, the contact portion of the flexible circuit board extending from the limiting groove can pass through the through-hole of the fixing bracket to complete the perforation operation between the flexible circuit board and the fixing bracket. When the slider moves to the second position away from the retaining wall, the limiting groove of the slider separates from the contact portion of the flexible circuit board after the perforation operation, and the fixing bracket can be fixedly connected to the circuit board body of the flexible circuit board to complete the assembly operation between the flexible circuit board and the fixing bracket.

[0036] In summary, by moving the slider between the first and second positions, the perforation operation of the contact portion of the flexible circuit board passing through the through hole of the fixed bracket can be realized, as well as the assembly operation of the circuit board body of the flexible circuit board and the fixed bracket, thereby realizing the assembly of the fixed bracket and the flexible circuit board.

[0037] In one possible implementation, the extension includes a connecting portion, a blocking portion, and a base plate. One end of the connecting portion is fixedly connected to the sliding seat, and the other end of the connecting portion is fixedly connected to the blocking portion. The side of the blocking portion away from the connecting portion is fixedly connected to the outer edge of the base plate. The blocking portion extends along the circumferential direction of the base plate and is used to limit the fixed bracket. The extending direction of the base plate is perpendicular to the thickness direction of the circuit board assembly fixture. The base plate is provided with the limiting groove and is used to support part of the fixed bracket.

[0038] Understandably, when the slider slides close to the retaining wall, the enclosure and the base plate can be positioned above the retaining wall. At this point, by placing the fixing bracket on the slider, the base plate can support part of the fixing bracket, allowing the through-hole of the fixing bracket to align with the contact portion of the flexible circuit board clamped on the base plate and pass through it. Furthermore, the enclosure can partially obscure the outer edge of the fixing bracket to position its shape and restrict its movement along a direction perpendicular to its thickness.

[0039] In one possible implementation, the circuit board assembly fixture further includes a first state, in which the slider is in a second position, the suction hole abuts the connecting surface against the circuit board body and the retaining wall against the contact portion by suction.

[0040] Understandably, by continuously drawing air through the suction port, the circuit board body can be adsorbed onto the connecting surface of the platform, and the contact portion can be adsorbed onto the retaining wall, thereby fixing the entire flexible circuit board to the connecting surface of the platform. Since the contact portion is fixed to the retaining wall, its extension direction can be changed from initially being parallel to the extension direction of the circuit board body to being perpendicular to the extension direction of the circuit board body. That is, the contact portion will remain vertical due to the retaining wall, thus fixing the initial direction for subsequent perforation through the through hole of the fixing bracket.

[0041] In one possible implementation, the circuit board assembly fixture further includes a second state in which the slider is in the first position and the limiting groove is used to allow the contact portion abutting against the retaining wall to pass through and clamp the contact portion.

[0042] Understandably, when the circuit board assembly fixture switches from the first state to the second state, the limiting groove of the slider can clamp the contact part of the flexible circuit board to precisely position the contact part of the flexible circuit board and control the contact part of the flexible circuit board to keep it in a vertical state. This facilitates the contact part of the flexible circuit board to pass through the through hole of the fixed bracket accurately and quickly during the subsequent perforation process, thereby achieving precise control of the position of the contact part of the flexible circuit board.

[0043] In one possible implementation, the slider is further provided with a receiving groove, the receiving groove being in communication with the limiting groove, and the circuit board assembly fixture further includes a third state;

[0044] When the circuit board assembly fixture is in the third state, the slider is in the first position, the receiving groove is used to receive part of the fixed bracket, and is also used to cooperate with the fixture body to limit the fixed bracket. The limiting groove is used to communicate with the through hole of the fixed bracket so that the end of the contact part away from the circuit board body passes through the through hole of the fixed bracket.

[0045] Understandably, since the contact portion of the flexible circuit board is pre-fixed by the limiting groove of the slider, when assembling the fixing bracket and the flexible circuit board, the through hole of the fixing bracket can be aligned with the contact portion of the flexible circuit board fixed to the slider before being placed on the slider. Furthermore, because the slider has a receiving groove, the receiving groove can accommodate part of the fixing bracket, thereby achieving the external positioning of the fixing bracket and restricting its movement along the direction perpendicular to its thickness. This helps prevent the fixing bracket from shifting, deviating, or slipping off the slider after being placed on it, resulting in high reliability.

[0046] When the circuit board assembly fixture switches from the second state to the third state, the receiving groove of the slider can accommodate part of the fixing bracket and perform shape positioning of the fixing bracket. The second positioning post can be aligned with the second positioning hole of the fixing bracket and assist the slider in performing precise positioning of the fixing bracket. At this time, the contact part clamped by the limiting groove of the slider can pass through the through hole of the fixing bracket, realizing the through hole of the flexible circuit board and the fixing bracket.

[0047] In one possible implementation, the fixture body includes a first mold and a second mold, the platform is fixedly connected to the first mold, the second mold surrounds the platform and is vertically connected to the first mold, and the second mold is provided with a slot, a positioning slot and the sliding groove.

[0048] The slot extends through the second mold body along the thickness direction of the second mold body, and part of the platform is located in the slot. The slot can expose the connecting surface and the retaining wall.

[0049] The opening of the positioning groove is located on the surface of the second mold body opposite to the first mold body. The positioning groove is connected to the slide groove. The bottom wall of the positioning groove can rise or fall relative to the connecting surface. The positioning groove is used to accommodate the fixed bracket.

[0050] The opening of the slide groove is located on the surface of the second mold body opposite to the first mold body, and the slide groove is adjacent to and connected to the positioning groove.

[0051] In one possible implementation, the circuit board assembly fixture further includes a second positioning post, which is fixedly connected to the bottom wall of the positioning groove.

[0052] The circuit board assembly fixture also includes a fourth state. When the circuit board assembly fixture is in the fourth state, the slider is in the second position, the second positioning post is used to pass through the second positioning hole of the fixed bracket, and the positioning groove is used to accommodate the fixed bracket to fix the fixed bracket to the second mold body.

[0053] Understandably, when the circuit board assembly fixture switches from the third state to the fourth state, the slider returns to the first position, and the fixed bracket is installed in the positioning groove of the second mold to achieve linkage with the second mold. The fixed bracket can also achieve precise positioning with the second mold through the insertion of the second positioning post and the second positioning hole, thus making it difficult for the fixed bracket to slip off the second mold.

[0054] In one possible implementation, when the circuit board assembly fixture is in the fourth state, the circuit board body fixed to the platform and the fixing bracket fixed to the second mold are spaced apart in the thickness direction of the circuit board assembly fixture.

[0055] The circuit board assembly fixture also includes a fifth state. When the circuit board assembly fixture is in the fifth state, the slider is in the second position. The second mold is used to drive the fixed bracket to descend relative to the platform, so as to connect the fixed bracket fixed to the second mold to the circuit board body fixed to the platform.

[0056] Understandably, when the circuit board assembly fixture switches from the fourth state to the fifth state, the fixing bracket can be pressed down under the action of the second mold to fit against the circuit board body, thereby connecting the fixing bracket with the circuit board body and completing the perforation of the contact part and the through hole of the fixing bracket.

[0057] Secondly, this application also provides a method for assembling a circuit board assembly, the method comprising:

[0058] A circuit board assembly fixture, a flexible circuit board, and a fixing bracket are provided. The circuit board assembly fixture includes a fixture body, a platform, a retaining wall, and a slider. The platform is embedded in the fixture body and includes a connecting surface. At least a portion of the retaining wall is exposed outside the platform and protrudes relative to the connecting surface. The slider is slidably connected to the fixture body and has a limiting groove that penetrates the slider along its thickness direction.

[0059] The flexible circuit board is fixed to the platform, wherein the flexible circuit board includes a circuit board body and a contact portion connected together, the circuit board body is fixed to the connecting surface, the contact portion abuts against the retaining wall, and the contact portion is bent relative to the circuit board body;

[0060] Drive the slider to slide towards the retaining wall so that the limiting groove fixes the contact part; and

[0061] The fixing bracket is placed on the slider so that the contact portion passes through the through hole of the fixing bracket; and

[0062] The slider is driven to slide away from the retaining wall and separate from the contact part and the fixed bracket, so that the fixed bracket is fixedly connected to the circuit board body.

[0063] In one possible implementation, the connecting surface is provided with an air suction hole, the air suction hole being spaced apart from the retaining wall, and fixing the flexible circuit board to the shelf includes:

[0064] The flexible circuit board is moved above the platform, wherein the flexible circuit board includes a connected circuit board body and a contact portion, and the extending direction of the contact portion is parallel to the extending direction of the circuit board body; and

[0065] The air intake is controlled to draw in air, and the circuit board body is pressed tightly against the connecting surface and the contact portion is held against the barrier wall, so that the contact portion is bent relative to the circuit board body.

[0066] In one possible implementation, the fixture body includes a first mold and a second mold, the platform is fixedly connected to the first mold, the second mold surrounds the platform and is vertically and vertically connected to the first mold, and driving the slider to slide away from the retaining wall to separate from the contact portion and the fixed bracket, so that the fixed bracket is fixedly connected to the circuit board body, includes:

[0067] The slider is driven to slide away from the retaining wall and separate from the fixed bracket, so that the fixed bracket is fixed to the second mold body, wherein the fixed bracket fixed to the second mold body and the circuit board body fixed to the platform are spaced apart in the thickness direction of the circuit board assembly fixture; and

[0068] The second mold is driven to lower the fixed bracket relative to the platform, so as to connect the fixed bracket fixed to the second mold to the circuit board body fixed to the platform.

[0069] In one possible implementation, one end of the retaining wall is vertically connected to the first mold body, the retaining wall passes through the platform, and the other end of the retaining wall protrudes from the connecting surface. The retaining wall can descend relative to the connecting surface after being pressed and reset after the pressure is removed.

[0070] Thirdly, this application also provides a circuit board assembly, which is assembled using at least the circuit board assembly assembly fixture described above.

[0071] Fourthly, this application also provides an electronic device, which includes the circuit board assembly described above. Attached Figure Description

[0072] Figure 1 This is a schematic diagram of the structure of an electronic device provided in an embodiment of this application;

[0073] Figure 2 This is a schematic diagram of a partial structure of the circuit board assembly provided in the first embodiment of this application;

[0074] Figure 3This is a schematic diagram of another state of the circuit board assembly provided in the first embodiment of this application;

[0075] Figure 4 yes Figure 2 A schematic diagram of the mounting bracket for the circuit board assembly shown;

[0076] Figure 5 yes Figure 2 The diagram shows the state of the flexible circuit board assembly in its initial state.

[0077] Figure 6 yes Figure 2 The diagram shows the state of the flexible circuit board of the circuit board assembly when it is in a perforated state.

[0078] Figure 7 It is along Figure 2 A schematic cross-sectional view of a portion of the structure obtained by cutting along section line AA;

[0079] Figure 8 This is a schematic diagram of a partial structure of the circuit board assembly provided in the second embodiment of this application;

[0080] Figure 9 This is a schematic diagram of another state of the circuit board assembly provided in the second embodiment of this application;

[0081] Figure 10 yes Figure 8 A schematic diagram of the mounting bracket for the circuit board assembly shown;

[0082] Figure 11 yes Figure 8 The diagram shows the state of the flexible circuit board assembly in its initial state.

[0083] Figure 12 yes Figure 8 The diagram shows the state of the flexible circuit board of the circuit board assembly when it is in a perforated state.

[0084] Figure 13 It is along Figure 8 The diagram shows a cross-sectional view of a portion of the structure obtained by cutting BB with a section line.

[0085] Figure 14 This is a schematic diagram of a circuit board assembly fixture provided in the first embodiment of this application;

[0086] Figure 15 yes Figure 14 An exploded view of part of the structure of the circuit board assembly fixture shown;

[0087] Figure 16 yes Figure 14A schematic diagram of part of the circuit board assembly fixture shown;

[0088] Figure 17 It is along Figure 16 A schematic diagram of the cross-section obtained by cutting along the cutting line CC;

[0089] Figure 18 yes Figure 14 A schematic diagram of the second module of the circuit board assembly fixture at one angle;

[0090] Figure 19 yes Figure 14 A structural schematic diagram of the second mold body of the fixture body from another angle;

[0091] Figure 20 yes Figure 14 A structural schematic diagram of the second mold body of the fixture body from another angle;

[0092] Figure 21 yes Figure 14 A schematic diagram of the platform of the circuit board assembly fixture shown;

[0093] Figure 22 It is along Figure 14 A schematic diagram of the cross-section obtained by cutting along the cutting line DD;

[0094] Figure 23 It is along Figure 14 A schematic diagram of the cross-section obtained by cutting along the cutting line EE;

[0095] Figure 24 This is a schematic diagram of another state of the circuit board assembly fixture provided in the first embodiment of this application;

[0096] Figure 25 yes Figure 14 A schematic diagram of the slider in the circuit board assembly fixture shown;

[0097] Figure 26 yes Figure 14 The diagram shows the first state of assembling a circuit board assembly using a circuit board assembly jig.

[0098] Figure 27 yes Figure 14 The diagram shows the second state of assembling the circuit board assembly using the circuit board assembly assembly fixture.

[0099] Figure 28 yes Figure 14 The diagram shows the third state of assembling a circuit board assembly using a circuit board assembly jig.

[0100] Figure 29 yes Figure 14The diagram shows the fourth state of assembling a circuit board assembly using a circuit board assembly jig.

[0101] Figure 30 yes Figure 14 The diagram shows the fifth state of assembling the circuit board assembly using the circuit board assembly assembly fixture.

[0102] Figure 31 This is a schematic diagram of a circuit board assembly fixture provided in the second embodiment of this application;

[0103] Figure 32 yes Figure 31 A schematic diagram of a portion of the fixture body of the circuit board assembly fixture shown;

[0104] Figure 33 yes Figure 31 A schematic diagram of another part of the fixture body of the circuit board assembly fixture shown.

[0105] Figure 34 yes Figure 31 A schematic diagram of the platform of the circuit board assembly fixture shown;

[0106] Figure 35 This is a schematic diagram of another state of the circuit board assembly fixture provided in the second embodiment of this application;

[0107] Figure 36 yes Figure 31 A schematic diagram of the slider in the circuit board assembly fixture shown;

[0108] Figure 37 This is a schematic flowchart of the assembly method of the circuit board assembly provided in the first embodiment of this application. Detailed Implementation

[0109] For ease of understanding, the terminology used in the embodiments of this application will be explained first.

[0110] And / or: This is simply a way of describing the relationship between related objects. It indicates that there can be three kinds of relationships. For example, A and / or B can represent three situations: A exists alone, A and B exist simultaneously, and B exists alone.

[0111] Multiple: refers to two or more.

[0112] Connection: should be interpreted broadly. For example, the connection between A and B can be a direct connection between A and B, or an indirect connection between A and B through an intermediary.

[0113] The specific embodiments of this application will now be clearly described in conjunction with the accompanying drawings.

[0114] Embodiments of this application provide a circuit board assembly, a circuit board assembly assembly fixture, a circuit board assembly assembly method, and an electronic device.

[0115] Please see Figure 1 , Figure 1 This is a schematic diagram of the structure of the electronic device 300 provided in the embodiments of this application.

[0116] Electronic device 300 may include a frame 310, a display module 320, a back cover 330, and a circuit board assembly 200. The display module 320 and the back cover 330 are respectively connected to opposite sides of the frame 310 in the thickness direction. The display module 320, the frame 310, and the back cover 330 can enclose and form a receiving space for electronic device 300. The receiving space of electronic device 300 can accommodate multiple modules, multiple electronic devices, and multiple structural components that perform various functions of electronic device 300. The circuit board assembly 200 is located in the receiving space of electronic device 300 and is responsible for connecting and supporting various electronic components in electronic device 300 to ensure the normal operation of electronic device 300.

[0117] For example, when the electronic device 300 is a mobile phone, the frame 310 can be the middle frame of the mobile phone, and the display module 320 can be a cover for displaying visual information such as images, colors, and text to the user, such as a display screen. The back cover 330 can be the battery cover of the mobile phone. The back cover 330 can be a one-piece molded cover or a cover made of multiple parts spliced ​​together. The embodiments of this application do not limit this.

[0118] It should be noted that, Figure 1 The purpose is solely to illustratively describe the connection relationship between the frame 310, display module 320, back cover 330, and circuit board assembly 200, and is not to specifically limit the connection positions, specific structures, or quantities of each device. Furthermore, the structures illustrated in the embodiments of this application do not constitute a specific limitation on the electronic device 300. In other embodiments of this application, the electronic device 300 may include... Figure 1 This may involve more or fewer components, or combining certain components, or splitting certain components, or different component arrangements. Figure 1 The components shown can be implemented in hardware, software, or a combination of both.

[0119] The structure of the circuit board assembly 200 provided in the embodiments of this application will be described in detail below through two specific embodiments.

[0120] First embodiment:

[0121] Please refer to the following: Figure 2 and Figure 3 , Figure 2This is a schematic diagram of a partial structure of the circuit board assembly 200 provided in the first embodiment of this application. Figure 3 This is a schematic diagram showing another state of the partial structure of the circuit board assembly 200 provided in the first embodiment of this application. Figure 3 In the accompanying drawings relating to the through-hole assembly of the flexible circuit board 210 and the fixing bracket 220 of the circuit board assembly 200, for ease of illustration, the contact portion 2120 of the flexible circuit board 210 is bent once relative to the circuit board body 2110 of the flexible circuit board 210 and passes through the through hole 2230 of the fixing bracket 220, remaining vertical and not fixed to the fixing bracket 220 (i.e., the through-hole state of the flexible circuit board 210). However, in the actual assembled state of the circuit board assembly 200, after the contact portion 2120 of the flexible circuit board 210 passes through the through hole 2230 of the fixing bracket 220, it will be bent a second time and fixed to the fixing bracket 220 (i.e., the assembled state of the flexible circuit board 210).

[0122] The circuit board assembly 200 may include a fixed bracket 220 and a flexible printed circuit board (FPC) 210. A portion of the flexible printed circuit board 210 located on one side of the fixed bracket 220 passes through the fixed bracket 220 and is used for electrical connection with the motherboard located on the other side of the fixed bracket 220, thereby enabling an electrical connection path to be formed between the flexible printed circuit board 210 located on different sides of the fixed bracket 220 and the motherboard.

[0123] The flexible circuit board 210 features excellent thinness and flexibility, making it suitable for bending and folding without easily being damaged. The surface of the flexible circuit board 210 may be provided with an antenna pattern. That is, the flexible circuit board 210 can serve as a carrier for arranging antennas. For example, the antenna pattern may be an NFC (Near Field Communication) antenna.

[0124] In one possible implementation, the circuit board assembly 200 may further include a main board (not shown). The main board may be mounted on the side of the mounting bracket 220 opposite to the flexible circuit board 210. That is, the flexible circuit board 210 and the main board may be mounted on the mounting bracket 220 from opposite sides in the thickness direction of the mounting bracket 220, respectively. The main board is a circuit board, also referred to as the main circuit board, which may be a rigid circuit board, a flexible circuit board, or a rigid-flex circuit board.

[0125] Please see Figure 4 , Figure 4 yes Figure 2 The schematic diagram shows the structure of the fixing bracket 220 of the circuit board assembly 200.

[0126] In this embodiment, the fixing bracket 220 may include a first side portion 2210 and a second side portion 2220. The first side portion 2210 and the second side portion 2220 may be arranged opposite to each other in the thickness direction of the fixing bracket 220. The first side portion 2210 can be used to mount the flexible circuit board 210, and the second side portion 2220 can be used to mount the motherboard, so that both sides of the fixing bracket 220 can be fixed to the flexible circuit board 210 and the motherboard respectively, which is beneficial to optimizing the device layout on the fixing bracket 220 and is suitable for the development trend of thinner and lighter circuit board assembly 200.

[0127] The fixing bracket 220 may be provided with a through hole 2230. The through hole 2230 may penetrate the fixing bracket 220 along its thickness direction and extend from the first side portion 2210 to the second side portion 2220 (or from the second side portion 2220 to the first side portion 2210). The through hole 2230 may be used for the contact portion 2120 of the flexible circuit board 210 to pass through. There may be one or more through holes 2230. When there are multiple through holes 2230, they may be spaced apart on the fixing bracket 220. The structures of the multiple through holes 2230 may be similar, identical, or different. Each through hole 2230 can be used for one contact portion 2120 of the flexible circuit board 210 to pass through, so that multiple contact portions 2120 of the flexible circuit board 210 can simultaneously pass through multiple through holes 2230 of the fixing bracket 220. This helps to reduce the difficulty of drilling between the flexible circuit board 210 and the fixing bracket 220 and improves the drilling efficiency between the flexible circuit board 210 and the fixing bracket 220. In this embodiment, there are no strict limitations on the characteristic parameters of the through holes 2230, such as their shape, number, size, and placement.

[0128] For example, such as Figure 4 As shown, the through hole 2230 can be rectangular in shape. There can be two through holes 2230. The two through holes 2230 are spaced apart at the same corner of the fixed bracket 220.

[0129] The mounting bracket 220 may further include a support portion 2240. The support portion 2240 may be fixedly connected to the surface of the second side portion 2220 opposite to the surface of the first side portion 2210, and protrudes relative to the surface of the second side portion 2220 opposite to the surface of the first side portion 2210. The support portion 2240 is also connected to a portion of the outer edge of the through hole 2230. The support portion 2240 is used to engage with the contact portion 2120 of the flexible circuit board 210 passing through the through hole 2230.

[0130] It is understandable that by providing the support portion 2240 and connecting it to a portion of the outer edge of the through hole 2230, the contact portion 2120 of the flexible circuit board 210 can be bent twice and overlapped on the support portion 2240 when it passes through the through hole 2230. This allows the support portion 2240 to provide excellent support for the contact portion 2120 of the flexible circuit board 210, which is beneficial to improving the connection strength and stability between the contact portion 2120 of the flexible circuit board 210 and the fixed bracket 220, resulting in better reliability.

[0131] The number of support portions 2240 can be the same as the number of through holes 2230, and there can be one or more of them. When there are multiple support portions 2240, they are spaced apart on the fixed bracket 220. The structures of the multiple support portions 2240 can be similar, identical, or different. Each support portion 2240 is connected to a portion of the outer edge of a through hole 2230 and is used to overlap with a contact portion 2120 of the flexible circuit board 210. This embodiment does not impose strict limitations on the characteristic parameters of the support portions 2240, such as their shape, number, size, and placement.

[0132] For example, such as Figure 4 As shown, there can be two support portions 2240. The two support portions 2240 are respectively connected to the outer edges of the two through holes 2230. Both support portions 2240 can extend along the length of the fixing bracket 220, and their extension directions are opposite, thus causing the bending directions of the two contact portions 2120 of the flexible circuit board 210 that overlap with the two support portions 2240 to be opposite. The protrusion height of the two support portions 2240 relative to the surface of the second side portion 2220 away from the first side portion 2210 can be different. Figure 4 For example, of the two support portions 2240, one support portion 2240 can extend from right to left along the length direction of the fixed bracket 220, and the other support portion 2240 can extend from left to right along the length direction of the fixed bracket 220. Of the two support portions 2240, the thickness of the support portion 2240 extending from right to left along the length direction of the fixed bracket 220 is greater than the thickness of the other support portion 2240 extending from left to right along the length direction of the fixed bracket 220.

[0133] The fixing bracket 220 may further include a third positioning post 2250. The third positioning post 2250 may be fixedly connected to the surface of the support portion 2240 opposite to the second side portion 2220 and located at the end of the support portion 2240 away from the through hole 2230. The third positioning post 2250 may be used to pass through the third positioning hole 2160 of the contact portion 2120 for insertion into the third positioning hole 2160 of the contact portion 2120. The third positioning post 2250 can provide excellent positioning performance for the contact portion 2120 of the flexible circuit board 210, facilitating rapid positioning of the support portion 2240 of the fixing bracket 220 and the contact portion 2120 of the flexible circuit board 210, thereby improving the assembly efficiency between the support portion 2240 of the fixing bracket 220 and the contact portion 2120 of the flexible circuit board 210.

[0134] The number of third positioning posts 2250 can be one or more. When there are multiple third positioning posts 2250, they can be connected to the same support portion 2240 or different support portions 2240. The structures of the multiple third positioning posts 2250 can be similar, identical, or different. Each third positioning post 2250 is used to insert into a third positioning hole 2160 of the contact portion 2120 and to achieve positioning assembly between a support portion 2240 of the fixed bracket 220 and a contact portion 2120 of the flexible circuit board 210. This embodiment does not strictly limit the characteristic parameters of the third positioning posts 2250, such as shape, number, size, and placement.

[0135] The fixing bracket 220 may be provided with a second positioning hole 2260. The second positioning hole 2260 may penetrate the fixing bracket 220 along its thickness direction and extend from the first side portion 2210 to the second side portion 2220 (or extend from the second side portion 2220 to the first side portion 2210). The second positioning hole 2260 may be used for the second positioning post 62 of the circuit board assembly jig 100 to pass through and to be inserted into the second positioning post 62 of the circuit board assembly jig 100. There may be one or more second positioning holes 2260. When there are multiple second positioning holes 2260, the multiple second positioning holes 2260 may be spaced apart on the fixing bracket 220. The structures of the multiple second positioning holes 2260 may be similar, identical, or different. Each second positioning hole 2260 can be used for one second positioning post 62 of the circuit board assembly jig 100 to pass through, so that multiple second positioning posts 62 of the circuit board assembly jig 100 can simultaneously pass through multiple second positioning holes 2260 of the fixing bracket 220. This helps to reduce the positioning difficulty between the circuit board assembly jig 100 and the fixing bracket 220 and improves the assembly efficiency between the circuit board assembly jig 100 and the fixing bracket 220. In this embodiment, there are no strict limitations on the characteristic parameters of the second positioning holes 2260, such as their shape, number, size, and setting position.

[0136] For example, such as Figure 4 As shown, the second positioning hole 2260 can be circular in shape. There can be two second positioning holes 2260. The two second positioning holes 2260 are spaced apart on the fixed bracket 220.

[0137] Please refer to the following: Figure 5 , Figure 6 and Figure 7 , Figure 5 yes Figure 2 The diagram shows the state of the flexible circuit board 210 of the circuit board assembly 200 in its initial state. Figure 6 yes Figure 2 The diagram shows the state of the flexible circuit board 210 of the circuit board assembly 200 when it is in a perforated state. Figure 7 It is along Figure 2 The diagram shows a cross-sectional view of a portion of the structure obtained by cutting along section line AA. Figure 7 In the middle, the flexible circuit board 210 is in the assembly state.

[0138] The flexible circuit board 210 can be connected to a first side 2210 and a second side 2220 of a fixed bracket 220. The portion of the flexible circuit board 210 connected to the second side 2220 can pass through a through-hole 2230 in the fixed bracket 220. Specifically, the flexible circuit board 210 can include a circuit board body 2110 and a contact portion 2120. The contact portion 2120 can form PAD (pad) points on the flexible circuit board 210. The contact portion 2120 can serve as a contact point with component pins or other interconnecting elements, thereby enabling circuit signal interaction between the flexible circuit board 210 and the outside world.

[0139] The circuit board body 2110 can be located on one side of the first side 2210 of the fixing bracket 220 and connected to the first side 2210 of the fixing bracket 220. The circuit board body 2110, the fixing bracket 220, and the motherboard can be stacked sequentially. For example, the circuit board body 2110 can be connected to the first side 2210 of the fixing bracket 220 by adhesive bonding. For instance, an adhesive backing can be provided on the circuit board body 2110, and the circuit board body can be bonded to the first side 2210 of the fixing bracket 220 using this adhesive.

[0140] The circuit board body 2110 may be provided with a first positioning hole 2130. The first positioning hole 2130 can penetrate the circuit board body 2110 along the thickness direction. The first positioning hole 2130 can be used for the first positioning post 61 of the circuit board assembly jig 100 to pass through, so as to insert into the first positioning post 61 of the circuit board assembly jig 100, thereby realizing the positioning assembly between the flexible circuit board 210 and the circuit board assembly jig 100.

[0141] The number of first positioning holes 2130 can be one or more. When there are multiple first positioning holes 2130, they can be spaced apart on the circuit board body 2110. The structures of the multiple first positioning holes 2130 can be similar, identical, or different. Each first positioning hole 2130 is used to insert into a first positioning post 61 of the circuit board assembly fixture 100. This embodiment does not impose strict limitations on the characteristic parameters of the first positioning holes 2130, such as their shape, number, size, and placement.

[0142] For example, there may be two first positioning holes 2130. The two first positioning holes 2130 are spaced apart on the circuit board body 2110. Each first positioning hole 2130 is used to insert into a first positioning post 61 of the circuit board assembly assembly fixture 100.

[0143] Please refer to the following: Figure 5 , Figure 6 and Figure 7The contact portion 2120 is fixedly connected to the circuit board body 2110. The contact portion 2120 can be bent relative to the circuit board body 2110 and pass through the through hole 2230 of the fixing bracket 220 to connect with the support portion 2240 of the fixing bracket 220, thereby realizing the through-hole assembly of the flexible circuit board 210 and the fixing bracket 220. The contact portion 2120 can also be used for electrical connection with the motherboard.

[0144] The number of contact portions 2120 can be one or more. When there is only one contact portion 2120, the flexible circuit board 210 has one area that needs to be connected to the motherboard. When there are multiple contact portions 2120, the flexible circuit board 210 has multiple areas that need to be connected to the motherboard, and the multiple contact portions 2120 are spaced apart and connected to the circuit board body 2110.

[0145] Understandably, since the contact portion 2120 is the area of ​​the flexible circuit board 210 that interacts with the outside world via electrical signals, there will be corresponding traces arranged in the contact portion 2120. By setting the number of contact portions 2120 to multiple and spacing them apart, the traces in the multiple contact portions 2120 can be staggered, effectively avoiding the problem of increased thickness of the flexible circuit board 210 due to the stacking of traces in multiple contact portions 2120. This helps reduce the possibility of interference between the trace positions in multiple contact portions 2120, achieving a thinner and lighter flexible circuit board 210. Furthermore, the structure of multiple contact portions 2120 also helps reduce the cost of the circuit board assembly 200.

[0146] For example, the contact portion 2120 can be connected to the support portion 2240 of the fixing bracket 220 by adhesive bonding. Furthermore, the contact portion 2120 can be connected to the spring contact of the motherboard to achieve electrical connection between the flexible circuit board 210 and the motherboard. There can be two contact portions 2120. The two contact portions 2120 are connected to the circuit board body 2110 at a distance, and the bending directions of the two contact portions 2120 are opposite. Figure 7 For example, of the two contact portions 2120, one contact portion 2120 passes through a through hole 2230 of the fixed bracket 220 and then folds to the left, while the other contact portion 2120 passes through another through hole 2230 of the fixed bracket 220 and then folds to the right.

[0147] The contact portion 2120 may include a first segment 2140 and a second segment 2150. The first segment 2140 may be located on one side of the second side portion 2220 of the fixing bracket 220 and spaced apart from the circuit board body 2110 in the thickness direction of the flexible circuit board 210. The first segment 2140 may also be connected to the support portion 2240 of the fixing bracket 220 to fix the contact portion 2120 to the fixing bracket 220. The second segment 2150 may pass through the through hole 2230 of the fixing bracket 220 and be bent and connected between the circuit board body 2110 and the first segment 2140. For example, the first segment 2140 may be connected to the support portion 2240 of the fixing bracket 220 by adhesive bonding.

[0148] The contact portion 2120 may be provided with a third positioning hole 2160. The third positioning hole 2160 may penetrate the contact portion 2120 along its thickness direction and is located at one end of the contact portion 2120 away from the circuit board body 2110. The third positioning hole 2160 may be used for the third positioning post 2250 of the fixing bracket 220 to pass through and be inserted into the third positioning hole 2160 of the fixing bracket 220. For example, the third positioning hole 2160 may be located at one end of the second segment 2150 away from the first segment 2140.

[0149] The number of third positioning holes 2160 can be one or more. When there are multiple third positioning holes 2160, they can be located in the same contact portion 2120 or in different contact portions 2120. The structures of the multiple third positioning holes 2160 can be similar, identical, or different. Each third positioning hole 2160 is used to insert into a third positioning post 2250 of the fixed bracket 220 and to achieve positioning and assembly of a contact portion 2120 of the flexible circuit board 210 and a support portion 2240 of the fixed bracket 220. This embodiment does not strictly limit the characteristic parameters of the third positioning holes 2160, such as their shape, number, size, and location.

[0150] For example, there may be two third positioning holes 2160. The two third positioning holes 2160 are respectively provided on the two contact portions 2120. Each third positioning hole 2160 is used to insert into a third positioning post 2250 of the circuit board assembly assembly fixture 100.

[0151] In this embodiment, the flexible circuit board 210 may include an initial state, a through-hole state, and an assembled state. The initial state can be the original state of the flexible circuit board 210 before it is assembled with the fixing bracket 220. The through-hole state can be the state where the contact portion 2120 of the flexible circuit board 210 is ready to pass through the through-hole 2230 of the fixing bracket 220. Alternatively, the through-hole state can be the state where the contact portion 2120 of the flexible circuit board 210 passes through the through-hole 2230 of the fixing bracket 220 but is not assembled with the fixing bracket 220. The assembled state can be the state where the contact portion 2120 of the flexible circuit board 210 passes through the through-hole 2230 of the fixing bracket 220 and is assembled with the fixing bracket 220. The through-hole state of the flexible circuit board 210 can be implemented in the circuit board assembly assembly fixture 100. Alternatively, both the through-hole state and the assembled state of the flexible circuit board 210 can be implemented in the circuit board assembly assembly fixture 100.

[0152] like Figure 5 As shown, when the flexible circuit board 210 is in its initial state, the contact portion 2120 is not bent, and the extending direction of the contact portion 2120 is parallel to the extending direction of the circuit board body 2110. Figure 3 and Figure 6 As shown, when the flexible circuit board 210 is in the through-hole state, the contact portion 2120 bends once relative to the circuit board body 2110, and the contact portion 2120 may have a bending angle. The extending direction of a portion of the contact portion 2120 may be perpendicular to the extending direction of the circuit board body 2110 (within allowable tolerance). For example... Figure 2 and Figure 7 As shown, when the flexible circuit board 210 is in the assembled state, the contact portion 2120 is bent twice relative to the circuit board body 2110, and the contact portion 2120 may have two bending angles. In some other embodiments, the contact portion 2120 may also be bent more than twice, and this is not strictly limited.

[0153] For example, the contact portion 2120 may not require additional reinforcing steel sheets. The strength of the contact portion 2120 may be the same as the strength of the circuit board body 2110. That is, the strength of the contact portion 2120 may be consistent with the strength of the circuit board body 2110. In some other embodiments, the contact portion 2120 may also be provided with reinforcing steel sheets, and this is not strictly limited.

[0154] Second embodiment:

[0155] Please refer to the following: Figure 8 and Figure 9 , Figure 8 This is a schematic diagram of a partial structure of the circuit board assembly 200 provided in the second embodiment of this application. Figure 9This is a schematic diagram showing another state of the partial structure of the circuit board assembly 200 provided in the second embodiment of this application. Figure 9 In the accompanying drawings relating to the through-hole assembly of the flexible circuit board 210 and the fixing bracket 220 of the circuit board assembly 200, for ease of illustration, the contact portion 2120 of the flexible circuit board 210 is bent once relative to the circuit board body 2110 of the flexible circuit board 210 and passes through the through hole 2230 of the fixing bracket 220, remaining vertical and not fixed to the fixing bracket 220 (i.e., the through-hole state of the flexible circuit board 210). However, in the actual assembled state of the circuit board assembly 200, after the contact portion 2120 of the flexible circuit board 210 passes through the through hole 2230 of the fixing bracket 220, it will be bent a second time and fixed to the fixing bracket 220 (i.e., the assembled state of the flexible circuit board 210).

[0156] In this embodiment, the contents that are the same as in the first embodiment will not be repeated, and the contents that are different from the first embodiment will be described in detail below. In addition, the description of the structural improvements of the circuit board assembly 200 below can be applied to the first embodiment above, unless otherwise specified.

[0157] In this embodiment, the circuit board assembly 200 may include a fixing bracket 220 and a flexible circuit board 210. The structure of the fixing bracket 220 and the flexible circuit board 210 can be generally referred to the relevant description of the fixing bracket 220 and the flexible circuit board 210 in the first embodiment, and will not be repeated here.

[0158] Please see Figure 10 , Figure 10 yes Figure 8 The schematic diagram shows the structure of the fixing bracket 220 of the circuit board assembly 200.

[0159] The fixing bracket 220 may include a first side portion 2210, a second side portion 2220, a support portion 2240, and a third positioning post 2250. The fixing bracket 220 may also be provided with a through hole 2230 and a second positioning hole 2260. The structures of the first side portion 2210, second side portion 2220, support portion 2240, third positioning post 2250, through hole 2230, and second positioning hole 2260 of the fixing bracket 220 can generally refer to the relevant descriptions of the first side portion 2210, second side portion 2220, support portion 2240, third positioning post 2250, through hole 2230, and second positioning hole 2260 in the first embodiment, and will not be repeated here.

[0160] The difference between the fixing bracket 220 in this embodiment and the fixing bracket 220 in the first embodiment is that the number of through holes 2230 and the number of support portions 2240 are both one. One through hole 2230 is used for one contact portion 2120 of the flexible circuit board 210 to pass through. One support portion 2240 is connected to the second side portion 2220 and also to a portion of the outer edge of one through hole 2230.

[0161] For example, the fixed bracket 220 can be semi-circular in shape. There can be two third positioning posts 2250, spaced apart on the surface of the support portion 2240 away from the second side portion 2220. The two third positioning posts 2250 can be arranged opposite each other in the width direction of the support portion 2240.

[0162] Please refer to the following: Figure 11 , Figure 12 and Figure 13 , Figure 11 yes Figure 8 The diagram shows the state of the flexible circuit board 210 of the circuit board assembly 200 in its initial state. Figure 12 yes Figure 8 The diagram shows the state of the flexible circuit board 210 of the circuit board assembly 200 when it is in a perforated state. Figure 13 It is along Figure 8 The diagram shows a cross-sectional view of a portion of the structure obtained by cutting BB with a section line. Figure 13 In the middle, the flexible circuit board 210 is in the assembly state.

[0163] The flexible circuit board 210 may include a circuit board body 2110 and a contact portion 2120. The circuit board body 2110 may have a first positioning hole (not shown). The contact portion 2120 may include a first segment 2140 and a second segment 2150. The contact portion 2120 may have a third positioning hole 2160. The flexible circuit board 210 may include an initial state, a perforated state, and an assembled state. The structures of the circuit board body 2110, contact portion 2120, first positioning hole, first segment 2140, second segment 2150, and third positioning hole 2160, as well as the initial, perforated, and assembled states of the flexible circuit board 210, can be generally referred to the descriptions of the structures of the circuit board body 2110, contact portion 2120, first positioning hole 2130, first segment 2140, second segment 2150, and third positioning hole 2160, and the initial, perforated, and assembled states of the flexible circuit board 210 in the first embodiment, and will not be repeated here.

[0164] The flexible circuit board 210 of this embodiment differs from the flexible circuit board 210 of the first embodiment in that it has only one contact portion 2120. One contact portion 2120 is fixedly connected to the circuit board body 2110. The contact portion 2120 can be bent relative to the circuit board body 2110 and passes through a through hole 2230 of the fixing bracket 220 to connect with a support portion 2240 of the fixing bracket 220, thereby achieving through-hole assembly of the flexible circuit board 210 and the fixing bracket 220.

[0165] For example, in this embodiment, the flexible circuit board can be used for grounding, static electricity conduction, and other functions.

[0166] In the embodiments of this application, the circuit board assembly 200 can be assembled at least in the circuit board assembly assembly fixture 100 to obtain the circuit board assembly 200. That is, the circuit board assembly 200 can be entirely assembled in the circuit board assembly assembly fixture 100, or the circuit board assembly 200 can be assembled with only some components in the circuit board assembly assembly fixture 100. The structure of the circuit board assembly assembly fixture 100 will be described in detail below through two specific embodiments. The circuit board assembly 200 provided in the first embodiment of this application can be assembled at least using the circuit board assembly assembly fixture 100 provided in the first embodiment, and the circuit board assembly 200 provided in the second embodiment of this application can be assembled at least using the circuit board assembly assembly fixture 100 provided in the second embodiment.

[0167] First embodiment:

[0168] Please see Figure 14 , Figure 14 This is a schematic diagram of a state of the circuit board assembly fixture 100 provided in the first embodiment of this application.

[0169] For ease of description, the length direction of the circuit board assembly jig 100 is defined as the X direction, the width direction as the Y direction, and the thickness direction as the Z direction. The X, Y, and Z directions are all perpendicular to each other.

[0170] The circuit board assembly fixture 100 may include a fixture body 10, a platform 20, a retaining wall 30, and a slider 40. The platform 20 may be embedded in the fixture body 10. This embedding of the platform 20 in the fixture body 10 may mean that at least a portion of the platform 20 is located within the fixture body 10. The platform 20 may include a connecting surface 21. The connecting surface 21 is the outer surface of the platform 20. The connecting surface 21 can be used to fix the flexible circuit board 210 and contact the circuit board body 2110 of the flexible circuit board 210. At least a portion of the retaining wall 30 can protrude outside the platform 20 and protrude relative to the connecting surface 21 of the platform 20. The retaining wall 30 can be used to abut against the contact portion 2120 of the flexible circuit board 210 to fix the contact portion 2120 of the flexible circuit board 210. The slider 40 is slidably connected to the fixture body 10 and can slide relative to the fixture body 10 in a direction approaching or away from the retaining wall 30. The slider 40 may be provided with a limiting groove 41. The limiting groove 41 may extend through the slider 40 along its thickness direction (Z direction in the figure). The limiting groove 41 may be used to fix the contact portion 2120 abutting against the retaining wall 30 when the slider 40 slides close to the retaining wall 30, so that the contact portion 2120 passes through the through hole 2230 of the fixing bracket 220. The limiting groove 41 may also be used to separate from the contact portion 2120 when the slider 40 slides away from the retaining wall 30, so that the circuit board body 2110 is fixedly connected to the fixing bracket 220.

[0171] Understandably, in related technologies, assembling a flexible circuit board (PCB) with a fixed bracket requires workers to first pass the PAD points (i.e., the parts of the PCB that interconnect with other components) through the fixed bracket, and then fix the PCB to the fixed bracket, thus completing the through-hole assembly of the PCB and the fixed bracket. However, in the actual assembly process of the PCB and the fixed bracket, workers not only find it difficult to align the PAD points of the PCB with the holes on the fixed bracket, but also find it difficult to align the PCB and the fixed bracket after passing the PAD points through the holes on the fixed bracket. This easily leads to misalignment after bonding, resulting in greater assembly difficulty, lower assembly efficiency, and a lower finished product qualification rate for the PCB assembly 200.

[0172] Therefore, in the embodiments of this application, by setting a retaining wall 30 and making at least a portion of the retaining wall 30 protrude from the connecting surface 21 of the shelf 20, after the flexible circuit board 210 is placed on the shelf 20, the connecting surface 21 of the shelf 20 fixes the circuit board body 2110 of the flexible circuit board 210, and the retaining wall 30 abuts against the contact portion 2120 of the flexible circuit board 210, thereby causing the contact portion 2120 of the flexible circuit board 210 to bend relative to the circuit board body 2110 of the flexible circuit board 210. Furthermore, the retaining wall 30 can fix the contact portion 2120 of the flexible circuit board 210 by abutting against it, thus helping the contact portion 2120 of the flexible circuit board 210 to maintain a bent state relative to the circuit board body 2110 of the flexible circuit board 210. This provides excellent support for the contact portion 2120 of the flexible circuit board 210, ensuring that the contact portion 2120 of the flexible circuit board 210 will not be misaligned or deformed during subsequent perforation. This is beneficial to improving the perforation accuracy of the flexible circuit board 210 and the fixed bracket 220, and improving the assembly accuracy of the flexible circuit board 210 and the fixed bracket 220.

[0173] By setting a slider 40 and a limiting groove 41 on the slider 40, not only can the limiting groove 41 clamp the contact portion 2120 of the flexible circuit board 210 when the slider 40 slides relative to the fixture body 10 close to the retaining wall 30, thus precisely positioning the contact portion 2120 of the flexible circuit board 210 and controlling the contact portion 2120 of the flexible circuit board 210 to remain in a vertical state, thereby enabling the contact portion 2120 of the flexible circuit board 210 to accurately and quickly pass through the through hole 2230 of the fixed bracket 220, further realizing precise control of the position of the contact portion 2120 of the flexible circuit board 210, which facilitates the improvement of the operation accuracy and efficiency in the hole-hole process. Furthermore, when the slider 40 slides relative to the fixture body 10 away from the retaining wall 30, the limiting groove 41 can disengage from the contact portion 2120 of the flexible circuit board 210. Since the contact portion 2120 of the flexible circuit board 210 has been aligned with the through hole 2230 of the fixed bracket 220, and the circuit board body 2110 of the flexible circuit board 210 is accurately aligned with the fixed bracket 220, after the limiting groove 41 disengages from the contact portion 2120 of the flexible circuit board 210, the fixed bracket 220 and the circuit board body 2110 can be easily aligned and connected to complete the through hole assembly of the flexible circuit board 210 and the fixed bracket 220, and ensure the accuracy of the alignment between the flexible circuit board 210 and the fixed bracket 220.

[0174] In summary, the circuit board assembly fixture 100 has advantages such as simple component structure, convenient alignment operation, and high alignment accuracy. Therefore, when the flexible circuit board 210 and the fixed bracket 220 are placed in the circuit board assembly fixture 100 for through-hole assembly, it helps to reduce the assembly difficulty of through-hole assembly of the flexible circuit board 210 and the fixed bracket 220, improve the work efficiency of through-hole assembly of the flexible circuit board 210 and the fixed bracket 220, reduce the assembly cost of the circuit board assembly 200 and the fatigue of the workers, improve the assembly consistency and product quality of the circuit board assembly 200 after assembly, and has good reliability.

[0175] Please refer to the following: Figure 14 and Figure 15 , Figure 15 yes Figure 14 An exploded view of part of the structure of the circuit board assembly fixture 100 shown.

[0176] The fixture body 10 may include a first mold 11 and a second mold 12. The first mold 11 and the second mold 12 may be arranged opposite to each other in the Z direction. The second mold 12 may be vertically connected to the first mold 11. That is, the second mold 12 is connected to the first mold 11. The second mold 12 may be lowered relative to the first mold 11 to approach the first mold 11, or the second mold 12 may be raised relative to the first mold 11 to move away from the first mold 11. The vertical connection method of the first mold 11 and the second mold 12 may be selected according to the specific application scenario of the circuit board assembly fixture 100, and there is no strict limitation on it.

[0177] Please refer to the following: Figure 16 and Figure 17 , Figure 16 yes Figure 14 The diagram shows a partial structure of the circuit board assembly fixture 100. Figure 17 It is along Figure 16 The diagram shows a cross-section obtained by cutting along the cutting line CC.

[0178] The first mold body 11 may be provided with a first mounting groove 111. The opening of the first mounting groove 111 may be located on the surface of the first mold body 11 facing the second mold body 12. The first mounting groove 111 may be recessed from the surface of the first mold body 11 facing the second mold body 12 toward the interior of the first mold body 11. The first mounting groove 111 may be used to mount the platform 20 and accommodate a portion of the base 26 of the platform 20. The shape of the first mounting groove 111 may be adapted to the shape of the base 26 of the platform 20. For example, the shape of the first mounting groove 111 may be rectangular.

[0179] The first mold 11 may be provided with an air intake channel 112. The air intake channel 112 can be connected between the air pipe connector 50 and the cavity 22 of the platform 20, and connects the air pipe connector 50 and the cavity 22 of the platform 20, so that the internal gas of the circuit board assembly fixture 100 can sequentially pass through the cavity 22 of the platform 20, the air intake channel 112, and the air pipe connector 50, and then be drawn out to the outside of the circuit board assembly fixture 100. Specifically, the inlet of the air intake channel 112 can be located on the bottom wall of the first mounting groove 111. The inlet of the air intake channel 112 can be used to communicate with the cavity 22 of the platform 20, so that the internal gas of the circuit board assembly fixture 100 can enter the air intake channel 112 through the cavity 22 of the platform 20. The outlet of the air intake channel 112 can be located on the side of the first mold 11. The outlet of the intake channel 112 can be connected to the air pipe connector 50 to allow the gas entering the intake channel 112 to flow out of the circuit board assembly assembly fixture 100.

[0180] The first mold body 11 may also be provided with a groove 113. The opening of the groove 113 may be located on the bottom wall of the first mounting groove 111. The groove 113 may be recessed from the bottom wall of the first mounting groove 111 toward the interior of the first mold body 11. The groove 113 may connect the first mounting groove 111 and the air intake channel 112, and communicate with both the first mounting groove 111 and the air intake channel 112. That is, the groove 113 may connect the first mounting groove 111 and the air intake channel 112.

[0181] It is understandable that by setting a groove 113 on the bottom wall of the first mounting groove 111 and connecting the groove 113 with the first mounting groove 111 and the suction channel 112, a certain buffer space can be provided for the gas, so that the cavity 22 of the platform 20 can smoothly enter the suction channel 112 through the groove 113, avoiding the problem of gas not being able to be sucked out due to the platform 20 blocking the entrance of the suction channel 112, thus improving reliability.

[0182] In one possible implementation, the circuit board assembly jig 100 may further include an air connector 50. The air connector 50 may be mounted on the first mold body 11 and communicate with the cavity 22 of the stage 20 through the air intake channel 112 of the first mold body 11. The air connector 50 allows external gas from the circuit board assembly jig 100 to enter the cavity 22 of the stage 20. The air connector 50 may also release internal gas from the circuit board assembly jig 100, allowing the internal gas to flow out of the circuit board assembly jig 100.

[0183] Please refer to the following: Figure 14 , Figure 18 and Figure 19 , Figure 18 yes Figure 14The diagram shows a structural schematic of the second mold 12 of the circuit board assembly fixture 100 at one angle. Figure 19 yes Figure 14 A schematic diagram of the structure of the second mold 12 of the jig body 10 from another angle.

[0184] In this embodiment, the second module 12 surrounds the platform 20 and is vertically connected to the first module 11. When the second module 12 rises relative to the first module 11, the second module 12 also rises relative to the platform 20. When the second module 12 falls relative to the first module 11, the second module 12 also falls relative to the platform 20.

[0185] The second mold 12 is provided with a positioning groove 121, a slot 122, and a sliding groove 123. The opening of the positioning groove 121 can be located on the surface of the second mold 12 opposite to the first mold 11. The positioning groove 121 can be recessed from the surface of the second mold 12 opposite to the first mold 11 into the interior of the second mold 12. The shape of the positioning groove 121 can be adapted to the shape of the fixed bracket 220 and is used to accommodate and install the fixed bracket 220. When the second mold 12 rises or falls relative to the first mold 11, it can drive the fixed bracket 220 fixed to the second mold 12 to rise or fall relative to the first mold 11. That is, when the second mold 12 rises or falls relative to the first mold 11, it can drive the fixed bracket 220 fixed to the second mold 12 to rise or fall relative to the platform 20, so that the fixed bracket 220 fixed to the second mold 12 can move away from or closer to the connecting surface 21 of the platform 20. When the second module 12 rises or falls relative to the first module 11, the bottom wall of the positioning groove 121 can rise or fall relative to the connecting surface 21 of the platform 20.

[0186] In one possible implementation, the circuit board assembly fixture 100 may further include a second positioning post 62. The second positioning post 62 may be fixedly connected to the bottom wall of the positioning groove 121 and located at the edge of the bottom wall of the positioning groove 121. The bottom wall of the positioning groove 121 may be positioned opposite to the opening of the positioning groove 121 in the Z direction. The second positioning post 62 may be used to pass through the second positioning hole 2260 of the fixing bracket 220 for insertion into the second positioning hole 2260 of the fixing bracket 220. The second positioning post 62 can provide excellent positioning performance for the fixing bracket 220, facilitating rapid positioning of the fixing bracket 220 and the second mold 12, and improving the assembly efficiency between the fixing bracket 220 and the second mold 12.

[0187] The number of second positioning posts 62 can be one or more. When there are multiple second positioning posts 62, they can be spaced apart on the bottom wall of the positioning groove 121. The structures of the multiple second positioning posts 62 can be similar, identical, or different. Each second positioning post 62 is used to insert into a second positioning hole 2260 of the fixed bracket 220, and is used to realize the positioning assembly of the fixed bracket 220 and the second mold 12. In this embodiment, there are no strict limitations on the characteristic parameters of the second positioning posts 62, such as their shape, number, size, and setting position.

[0188] For example, there may be two second positioning posts 62. The two second positioning posts 62 are spaced apart on the bottom wall of the positioning groove 121 and may be arranged opposite each other along the diagonal of the positioning groove 121.

[0189] In this embodiment, the slot 122 can penetrate the second mold 12 along its thickness direction (Z direction in the figure). The slot 122 can be disposed opposite to and connected to the positioning slot 121 in the thickness direction of the second mold 12. The cross-sectional area of ​​the slot 122 along the direction parallel to the XY plane can be smaller than the cross-sectional area of ​​the positioning slot 121 along the direction parallel to the XY plane. The slot 122 can be used to mount the platform 20 and can be used to accommodate part of the boss 27 of the platform 20. The shape of the slot 122 can be adapted to the shape of the boss 27 of the platform 20 located therein. The slot 122 can expose the connecting surface 21 of the platform 20 and the retaining wall 30 protruding relative to the connecting surface 21 of the platform 20.

[0190] The opening of the groove 123 is located on the surface of the second mold 12 opposite to the first mold 11. The groove 123 can extend along the length direction of the second mold 12 (X direction in the figure) and is recessed into the interior of the second mold 12 from the surface of the second mold 12 opposite to the first mold 11. The groove 123 can be arranged adjacent to and connected to the positioning groove 121. The groove 123 can be used to install the slider 40 and allow the slider 40 to slide relative to the second mold 12 within it. In this embodiment, there are no strict limitations on the characteristic parameters of the groove 123, such as its shape, number, size, and setting position.

[0191] The slide groove 123 may include a first groove 1231 and a second groove 1232. The first groove 1231 and the second groove 1232 may be sequentially arranged and connected in the thickness direction of the second mold body 12. The opening of the first groove 1231 may be located on the bottom wall of the second groove 1232. The first groove 1231 may be recessed from the bottom wall of the second groove 1232 toward the interior of the second mold body 12. The first groove 1231 may be used to install the sliding seat 43 of the slider 40. The opening of the second groove 1232 may be located on the surface of the second mold body 12 away from the first mold body 11. The opening of the second groove 1232 may be arranged opposite to the bottom wall of the second groove 1232 in the thickness direction of the second mold body 12. The second groove 1232 may be recessed from the surface of the second mold body 12 away from the first mold body 11 toward the interior of the second mold body 12. The second groove 1232 may also penetrate the second mold body 12 along its length and communicate with the positioning groove 121.

[0192] The length of the second groove 1232 (i.e., the dimension of the second groove 1232 along the length direction of the second mold body 12) can be greater than the length of the first groove 1231 (i.e., the dimension of the first groove 1231 along the length direction of the second mold body 12). The second groove 1232 can be used to mount the extension 44 of the slider 40. Exemplarily, both the first groove 1231 and the second groove 1232 can be rectangular grooves.

[0193] Please see Figure 20 , Figure 20 yes Figure 14 A structural schematic diagram of the second mold 12 of the jig body 10 from another angle.

[0194] The second mold body 12 may also be provided with a second mounting groove 124. The opening of the second mounting groove 124 may be located on the surface of the second mold body 12 facing the first mold body 11. The second mounting groove 124 may be recessed from the surface of the second mold body 12 facing the first mold body 11 into the interior of the second mold body 12 and communicate with the slot 122. In the thickness direction of the second mold body 12, the second mounting groove 124, the slot 122, and the positioning groove 121 may be arranged sequentially. The second mounting groove 124 may also be arranged opposite to and communicate with the first mounting groove 111 in the Z direction. The second mounting groove 124 may be used to mount the platform 20 and accommodate a portion of the base 26 of the platform 20. The shape of the second mounting groove 124 may be adapted to the shape of the base 26 of the platform 20. For example, the shape of the second mounting groove 124 may be rectangular.

[0195] Please refer to the following: Figure 16 , Figure 17 and Figure 21 , Figure 21 yes Figure 14 A schematic diagram of the structure of the platform 20 of the circuit board assembly fixture 100 shown.

[0196] In this embodiment, the platform 20 can be fixedly connected to the first mold 11 and surrounded by the second mold 12, so that the platform 20 is embedded in the fixture body 10. The platform 20 can be connected to the first mold 11 by a detachable connection method such as screw fastening or snap-fit ​​connection. Alternatively, the platform 20 can be connected to the first mold 11 by an assembly method such as bonding or welding. Alternatively, the platform 20 can be connected to the first mold 11 by a one-piece molding method; this embodiment does not strictly limit this.

[0197] The platform 20 may have a cavity 22. The opening of the cavity 22 may be located on the surface of the platform 20 facing the first mold 11. The cavity 22 may be used for gas flow. The surface of the platform 20 facing away from the first mold 11 is the connecting surface 21 of the platform 20 described above. The connecting surface 21 may contact the circuit board body 2110 of the flexible circuit board 210 and fix the circuit board body 2110 of the flexible circuit board 210. The shape of the connecting surface 21 may be adapted to the shape of the circuit board body 2110 of the flexible circuit board 210.

[0198] The connecting surface 21 may be provided with an air intake 23. The air intake 23 may communicate with the cavity 22 to output the intake gas into the cavity 22. The air intake 23 can adsorb the flexible circuit board 210 onto the platform 20, so that the flexible circuit board 210 is fixedly connected to the platform 20. When adsorbing the flexible circuit board 210, the air intake 23 can firmly adhere the circuit board body 2110 of the flexible circuit board 210 to the connecting surface 21 and hold the contact portion 2120 of the flexible circuit board 210 against the baffle 30, so that the contact portion 2120 bends relative to the circuit board body 2110.

[0199] The number of suction holes 23 can be one or more. When there are multiple suction holes 23, they can be spaced apart on the connecting surface 21. The structures of the multiple suction holes 23 can be similar, identical, or different. This embodiment does not impose strict limitations on the characteristic parameters of the suction holes 23, such as their shape, number, size, and placement.

[0200] For example, the shape of the air intake 23 can be circular. The number of air intake 23 can be twenty-seven. The twenty-seven air intake 23 can be spaced apart on the connecting surface 21.

[0201] Understandably, because the suction port 23 continuously draws in air, the contact portion 2120 of the flexible circuit board 210 can remain in contact with the baffle wall 30 under the suction effect of the suction port 23, allowing the baffle wall 30 to continuously apply force to the contact portion 2120 of the flexible circuit board 210. Under the combined action of the baffle wall 30 and the suction port 23, the contact portion 2120 of the flexible circuit board 210 will bend relative to the circuit board body 2110 of the flexible circuit board 210 and be fixed to the baffle wall 30. At this time, the contact portion 2120 of the flexible circuit board 210 will bend once relative to the circuit board body 2110 of the flexible circuit board 210 and become vertical, and the direction of the bend can be fixed by the baffle wall 30.

[0202] Furthermore, since the air intake 23 can continuously draw in air, the flexible circuit board 210 is less prone to shaking or displacement after being fixed to the connecting surface 21. This helps to avoid the problem of skewing or displacement of the flexible circuit board 210 during the subsequent perforation assembly process with the fixed bracket 220, ensuring the positional stability and reliability of the flexible circuit board 210 during the assembly process, and improving the yield and production efficiency of the circuit board assembly 200.

[0203] The shelf 20 may also be provided with a first mounting hole 24. The first mounting hole 24 can penetrate the connecting surface 21 and extend through the shelf 20 along its thickness direction. The first mounting hole 24 can be spaced apart from the air intake 23 and is used to install the baffle 30 to limit the direction of the baffle 30's protrusion relative to the shelf 20, thus preventing the baffle 30 from shifting relative to the shelf 20. The shape of the first mounting hole 24 can be adapted to the shape of the baffle 30.

[0204] The number of first mounting holes 24 can be one or more. When there are multiple first mounting holes 24, they can be spaced apart on the connecting surface 21. The structures of the multiple first mounting holes 24 can be similar, identical, or different. Each first mounting hole 24 is used to install a retaining wall 30. This embodiment does not strictly limit the characteristic parameters of the first mounting holes 24, such as their shape, number, size, and location.

[0205] For example, the first mounting hole 24 can be rectangular in shape. There can be two first mounting holes 24. The two first mounting holes 24 can be spaced apart on the connecting surface 21. Each first mounting hole 24 is used to mount a retaining wall 30.

[0206] The shelf 20 may also be provided with a second mounting hole 25. The second mounting hole 25 can penetrate the connecting surface 21 and extend through the shelf 20 along its thickness direction. The second mounting hole 25 can be spaced apart from the air intake hole 23 and the first mounting hole 24, and is used to install the first positioning post 61 to limit the protrusion direction of the first positioning post 61 relative to the shelf 20, and to prevent the first positioning post 61 from shifting relative to the shelf 20. The shape of the second mounting hole 25 can be adapted to the shape of the first positioning post 61.

[0207] The number of second mounting holes 25 can be one or more. When there are multiple second mounting holes 25, they can be spaced apart on the connecting surface 21. The structures of the multiple second mounting holes 25 can be similar, identical, or different. Each second mounting hole 25 is used to install a retaining wall 30. This embodiment does not strictly limit the characteristic parameters of the second mounting holes 25, such as their shape, number, size, and location.

[0208] For example, the second mounting hole 25 can be rectangular in shape. There can be two second mounting holes 25. The two second mounting holes 25 can be spaced apart on the connecting surface 21. Each second mounting hole 25 is used to mount a first positioning post 61.

[0209] Please continue reading. Figure 16 , Figure 17 and Figure 21 The shelf 20 may include a base 26 and a protrusion 27. The base 26 may be located between the first mold 11 and the second mold 12, and fixedly connected to the first mold 11, so that the shelf 20 is entirely fixed to the first mold 11. When the second mold 12 rises relative to the first mold 11 to its maximum distance from the first mold 11, the base 26 may be installed in the first mounting groove 111 of the first mold 11. A portion of the base 26 may be located within the first mounting groove 111 of the first mold 11. Another portion of the base 26 may protrude from the surface of the first mold 11 toward the second mold 12, and be located between the first mold 11 and the second mold 12. When the second mold 12 descends relative to the first mold 11 to its minimum distance from the first mold 11, the base 26 may be installed in the first mounting groove 111 of the first mold 11 and the second mounting groove 124 of the second mold 12. A portion of the base 26 may be located in the first mounting groove 111 of the first mold 11, and another portion of the base 26 may be located in the second mounting groove 124 of the second mold 12.

[0210] The boss 27 is fixedly connected to the base 26 and is sequentially arranged with the base 26 in the thickness direction (Z direction in the figure) of the platform 20. The boss 27 can protrude from the surface of the base 26 away from the first mold body 11. The boss 27 can be installed in the slot 122 of the second mold body 12, so that the boss 27 is embedded in the second mold body 12. The connecting surface 21 of the platform 20 is the surface of the boss 27 away from the base 26. The cavity 22 is located between the base 26 and the boss 27. The first mounting hole 24 and the second mounting hole 25 can be located on the boss 27.

[0211] Please refer to the following: Figure 14 and Figure 22 , Figure 22 It is along Figure 14 The diagram shows a cross-section obtained by cutting along the cutting line DD.

[0212] In this embodiment, the retaining wall 30 may protrude from the connecting surface 21 of the shelf 20 and be fixedly connected to the shelf 20. Alternatively, the retaining wall 30 may pass through the shelf 20 and be movably connected to the shelf 20. Part of the retaining wall 30 protrudes relative to the connecting surface 21 of the shelf 20. The following description will use the example of the retaining wall 30 passing through the shelf 20 and being movably connected to the shelf 20, but it should be understood that this is not a limitation.

[0213] One end of the retaining wall 30 can be vertically connected to the first mold body 11. The retaining wall 30 passes through the first mounting hole 24 of the shelf 20, and the other end of the retaining wall 30 protrudes from the connecting surface 21. When the retaining wall 30 is pressed, it can descend relative to the connecting surface 21 and retract into the shelf 20, thereby giving the connecting surface 21 of the shelf 20 better flatness and smoothness, facilitating the assembly and fixation of the flexible circuit board 210 fixed to the connecting surface 21 and the fixed bracket 220. When the pressure on the retaining wall 30 is removed, the retaining wall 30 can rise relative to the connecting surface 21 and extend out of the shelf 20 to return to its original position. That is, the retaining wall 30 can descend relative to the connecting surface 21 after being pressed and return to its original position after the pressure is removed.

[0214] Understandably, since the retaining wall 30 can descend relative to the connecting surface 21 of the shelf 20 after being pressed, it can be driven by the fixed bracket 220 to descend relative to the connecting surface 21 of the shelf 20 after contacting the fixed bracket 220, thus retracting into the shelf 20 and avoiding the fixed bracket 220. Furthermore, the retaining wall 30 can also return to its protruding position relative to the shelf 20 after separating from the fixed bracket 220. In other words, during the assembly process of the fixed bracket 220 and the flexible circuit board 210, the retaining wall 30 can be flexibly stored in the shelf 20 or protruding relative to the shelf 20 according to the specific application scenario, without the need for additional clearance holes on the fixed bracket 220 to avoid the retaining wall 30. This achieves both clearance and storage of the retaining wall 30, which helps to save on the assembly process of the circuit board assembly 200 and improve the yield of the finished product.

[0215] In one possible implementation, the first mounting hole 24 may include a first hole 241 and a second hole 242. The second hole 242 may be sequentially disposed and connected to the first hole 241 in the thickness direction (Z direction in the figure) of the platform 20. The opening of the first hole 241 may be located on the connecting surface 21, and the opening of the second hole 242 may be located on the surface of the platform 20 facing the first mold body 11. The cross-sectional width of the first hole 241 along the thickness direction of the platform 20 may be smaller than the cross-sectional width of the second hole 242 along the thickness direction of the platform 20.

[0216] The retaining wall 30 may include a first sub-part 31 and a second sub-part 32. The second sub-part 32 may be sequentially arranged and connected to the first sub-part 31 in the thickness direction (Z direction in the figure) of the retaining wall 30. The cross-sectional width of the first sub-part 31 in the thickness direction of the retaining wall 30 may be smaller than the cross-sectional width of the second sub-part 32 in the thickness direction of the retaining wall 30. The first sub-part 31 may be installed in the first hole 241 of the first mounting hole 24. The first sub-part 31 is movable relative to the platform 20 in the thickness direction of the platform 20 within the first hole 241. The second sub-part 32 may be installed in the second hole 242 of the first mounting hole 24. The second sub-part 32 is movable relative to the platform 20 in the thickness direction of the platform 20 within the second hole 242. The second sub-part 32 is movable relative to the platform 20 in the thickness direction of the platform 20 within the second hole 242.

[0217] The first mold body 11 may also be provided with a third mounting hole 114. The opening of the third mounting hole 114 may be located on the bottom wall of the first mounting groove 111. The third mounting hole 114 may be arranged opposite to and connected to the first mounting hole 24 of the platform 20 in the Z direction.

[0218] In this embodiment, the circuit board assembly fixture 100 may further include a first elastic member 71. The first elastic member 71 may be located within the first mounting hole 24 of the platform 20 and the third mounting hole 114 of the first mold body 11. The first elastic member 71 may also be elastically connected between the retaining wall 30 and the first mold body 11, so that the retaining wall 30 and the first mold body 11 are vertically and vertically connected through the first elastic member 71.

[0219] For example, the first elastic element 71 can be a spring. In some other embodiments, the first elastic element 71 can also be other structural elements with good elastic force, capable of elastic deformation after being compressed, and rebounding after the pressure is removed, without strict limitation.

[0220] In this embodiment, the retaining wall 30 may also be provided with a slot 33. The slot 33 may be recessed from the outer surface of the retaining wall 30 to the interior of the retaining wall 30. The slot 33 also extends through the end face of the retaining wall 30 away from the connecting surface 21. The slot 33 may be used to accommodate a portion of the contact portion 2120 of the flexible circuit board 210.

[0221] It is understandable that by providing a slot 33 on the retaining wall 30, the slot 33 can be engaged with the contact portion 2120 of the flexible circuit board 210, thereby fixing the contact portion 2120 of the flexible circuit board 210 to the retaining wall 30, so as to further improve the connection stability and connection reliability between the retaining wall 30 and the contact portion 2120 of the flexible circuit board 210.

[0222] For example, there can be two retaining walls 30. The two retaining walls 30 are spaced apart and pass through the shelf 20. Each retaining wall 30 is provided with a slot 33. In the two retaining walls 30, the opening of the slot 33 of one retaining wall 30 faces opposite directions to the opening of the slot 33 of the other retaining wall 30. For example, the opening of the slot 33 of one retaining wall 30 faces the Y direction, and the opening of the other retaining wall 30 faces the opposite direction of the Y direction.

[0223] In some other embodiments, the number of baffles 30 may be one or more than two. The structures of more than two baffles 30 may be similar, identical or different, as long as the number of baffles 30 is the same as the number of contacts 2120 of the flexible circuit board 210, and one baffle 30 corresponds to one contact 2120 of the flexible circuit board 210, there is no strict limitation on this.

[0224] Please refer to the following: Figure 14 and Figure 23 , Figure 23 It is along Figure 14 The diagram shows a cross-section obtained by cutting along the section line EE.

[0225] In this embodiment, the circuit board assembly fixture 100 may further include a first positioning post 61. The first positioning post 61 may be spaced apart from the baffle 30 and the suction hole 23. At least a portion of the first positioning post 61 may protrude relative to the connecting surface 21 of the platform 20. The first positioning post 61 is used to pass through the first positioning hole 2130 of the circuit board body 2110 to be inserted into the first positioning hole 2130 of the circuit board body 2110. The first positioning post 61 can provide excellent positioning performance for the flexible circuit board 210, which is beneficial for the platform 20 and the flexible circuit board 210 to achieve rapid positioning and improve the assembly efficiency between the platform 20 and the flexible circuit board 210.

[0226] The number of first positioning posts 61 can be one or more. When there are multiple first positioning posts 61, they can be spaced apart. The structures of the multiple first positioning posts 61 can be similar, identical, or different. Each first positioning post 61 is used to insert into a first positioning hole 2130 of the circuit board body 2110 and to realize the positioning and assembly of the platform 20 and the flexible circuit board 210. This embodiment does not impose strict limitations on the characteristic parameters of the first positioning posts 61, such as their shape, number, size, and placement.

[0227] For example, there may be two first positioning posts 61. The two first positioning posts 61 are spaced apart on the bottom wall of the positioning groove 121 and may be arranged opposite each other along the diagonal of the positioning groove 121.

[0228] Furthermore, the first positioning post 61 can protrude from the connecting surface 21 of the shelf 20 and be fixedly connected to the shelf 20. Alternatively, the first positioning post 61 can pass through the shelf 20 and be movably connected to the shelf 20. Some of the first positioning posts 61 are provided to protrude from the connecting surface 21 of the shelf 20. The following description will take the example of the first positioning post 61 passing through the shelf 20 and being movably connected to the shelf 20, but it should be understood that this is not a limitation.

[0229] One end of the first positioning post 61 can be vertically connected to the first mold body 11. The first positioning post 61 passes through the second mounting hole 25 of the platform 20, and the other end of the first positioning post 61 protrudes from the connecting surface 21. When the first positioning post 61 is pressed, it can descend relative to the connecting surface 21 and retract into the platform 20, thereby giving the connecting surface 21 of the platform 20 better flatness and smoothness, facilitating the assembly and fixation of the flexible circuit board 210 fixed to the connecting surface 21 and the fixed bracket 220. When the pressure on the first positioning post 61 is removed, it can rise relative to the connecting surface 21 and extend out of the platform 20 to return to its original position. That is, the first positioning post 61 can descend relative to the connecting surface 21 after being pressed and return to its original position after the pressure is removed.

[0230] Understandably, since the first positioning post 61 can descend relative to the connecting surface 21 of the platform 20 after being pressed, it can be driven by the fixed bracket 220 to descend relative to the connecting surface 21 of the platform 20 after contacting the fixed bracket 220, thus retracting into the platform 20 and avoiding the fixed bracket 220. Furthermore, the first positioning post 61 can also return to its protruding position relative to the platform 20 after separating from the fixed bracket 220. In other words, during the assembly process of the fixed bracket 220 and the flexible circuit board 210, the first positioning post 61 can be flexibly stored in the platform 20 or protruding relative to the platform 20 according to the specific application scenario, without the need for additional avoidance holes on the fixed bracket 220 to avoid the first positioning post 61. This achieves both avoidance and storage of the first positioning post 61, which helps to save on the assembly process of the circuit board assembly 200 and improve the yield of the finished product.

[0231] In one possible implementation, the second mounting hole 25 may include a third hole 251 and a fourth hole 252. The fourth hole 252 may be sequentially arranged and connected to the third hole 251 in the thickness direction (Z direction in the figure) of the platform 20. The opening of the third hole 251 may be located on the connecting surface 21, and the opening of the fourth hole 252 may be located on the surface of the platform 20 facing the first mold body 11. The cross-sectional width of the third hole 251 along the thickness direction of the platform 20 may be smaller than the cross-sectional width of the fourth hole 252 along the thickness direction of the platform 20.

[0232] The first positioning post 61 may include a third sub-part 611 and a fourth sub-part 612. The fourth sub-part 612 may be sequentially arranged and connected to the third sub-part 611 in the thickness direction (Z direction in the figure) of the first positioning post 61. The cross-sectional width of the third sub-part 611 along the thickness direction of the first positioning post 61 may be smaller than the cross-sectional width of the fourth sub-part 612 along the thickness direction of the first positioning post 61. The third sub-part 611 may be installed in the third hole 251 of the second mounting hole 25. The third sub-part 611 is movable relative to the table 20 in the thickness direction of the table 20 within the third hole 251. The fourth sub-part 612 may be installed in the fourth hole 252 of the second mounting hole 25. The fourth sub-part 612 is movable relative to the table 20 in the thickness direction of the table 20 within the fourth hole 252. The fourth sub-part 612 is movable relative to the table 20 in the thickness direction of the table 20 within the fourth hole 252.

[0233] The first mold body 11 may also be provided with a fourth mounting hole 115. The opening of the fourth mounting hole 115 may be located on the bottom wall of the first mounting groove 111. The fourth mounting hole 115 may be arranged opposite to and connected to the second mounting hole 25 of the shelf 20 in the Z direction.

[0234] In this embodiment, the circuit board assembly fixture 100 may further include a second elastic member 72. The second elastic member 72 may be located within the second mounting hole 25 of the platform 20 and the fourth mounting hole 115 of the first mold body 11. The second elastic member 72 may also be elastically connected between the first positioning post 61 and the first mold body 11, so that the first positioning post 61 is vertically connected to the first mold body 11 through the second elastic member 72.

[0235] For example, the second elastic element 72 can be a spring. In some other embodiments, the second elastic element 72 can also be other structural elements with good elastic force, capable of elastic deformation after being compressed and rebounding after the pressure is removed, without strict limitation.

[0236] For example, there may be two first positioning posts 61. The two first positioning posts 61 are spaced apart and pass through the platform 20. Each first positioning post 61 is used to connect to a first positioning hole 2130 of the flexible circuit board 210.

[0237] Please refer to the following: Figure 14 , Figure 22 and Figure 23 , Figure 22 This is a schematic diagram of another state of the circuit board assembly fixture 100 provided in the first embodiment of this application. Figure 23 yes Figure 14 The diagram shows the structure of the slider 40 in the circuit board assembly fixture 100. Figure 14 In the middle, slider 40 is away from retaining wall 30 and is in the second position T2. Figure 22 In the middle, slider 40 is close to retaining wall 30 and is in the first position T1.

[0238] The slider 40 is connected to the groove 123 of the fixture body 10. The slider 40 can slide relative to the fixture body 10 in a direction close to or away from the retaining wall 30 between a first position T1 and a second position T2. ​​The first position T1 is the position where the slider 40 slides close to the retaining wall 30. The second position T2 is the position where the slider 40 slides away from the retaining wall 30. The second position T2 can be either the initial position of the slider 40 before it limits the contact portion 2120 of the flexible circuit board 210, or the return position of the slider 40 after it has limited the contact portion 2120 of the flexible circuit board 210; the initial position and the returned position are the same. For example, the slider 40 can be slidably connected to the second mold body 12.

[0239] When slider 40 is in the first position T1, a portion of slider 40 extends out of the slide groove 123 and into the positioning groove 121. A portion of slider 40 is stacked with the retaining wall 30, and a portion of the slider 40's projection along the Z-direction falls onto the platform 20. The retaining wall 30 and the limiting groove 41 of slider 40 are positioned opposite each other in the Z-direction, so that the limiting groove 41 of slider 40 clamps the contact portion 2120 of the flexible circuit board 210 protruding relative to the retaining wall 30, thereby fixing the contact portion 2120 of the flexible circuit board 210 abutting against the retaining wall 30. When slider 40 is in the second position T2, slider 40 and retaining wall 30 are misaligned and spaced apart.

[0240] It is understandable that by sliding the slider 40 relative to the fixture body 10 in a direction close to or away from the retaining wall 30 between the first position T1 and the second position T2, the limiting groove 41 of the slider 40 can be aligned with the retaining wall 30 when the slider 40 slides to the first position T1. On the one hand, aligning the limiting groove 41 of the slider 40 with the retaining wall 30 can further limit the contact portion 2120 of the flexible circuit board 210 abutting against the retaining wall 30 by the limiting groove 41 of the slider 40, thereby precisely positioning the contact portion 2120 of the flexible circuit board 210 and improving the positioning accuracy of the contact portion 2120 of the flexible circuit board 210. On the other hand, aligning the limiting groove 41 of the slider 40 with the retaining wall 30 enables the limiting groove 41 of the slider 40 to fix the protrusion direction of the contact portion 2120 of the flexible circuit board 210 and provide good support for the contact portion 2120 of the flexible circuit board 210. This helps to avoid the problem of positional deviation caused by shaking during the subsequent perforation assembly of the contact portion 2120 of the flexible circuit board 210 with the fixed bracket 220. The limiting groove 41 of the slider 40 can control the contact portion 2120 of the flexible circuit board 210 to remain vertical and prevent the contact portion 2120 of the flexible circuit board 210 from deforming or shifting.

[0241] When the slider 40 slides to the second position T2, the slider 40 is misaligned and spaced apart from the retaining wall 30, so that the contact part 2120 of the flexible circuit board 210 abutting against the retaining wall 30 can be disengaged from the limiting groove 41 of the slider 40, so that the circuit board body 2110 of the flexible circuit board 210 is fixedly connected to the fixed bracket 220.

[0242] In this embodiment, the slider 40 may also be provided with a receiving groove 42. The opening of the receiving groove 42 may be located on the surface of the slider 40 away from the fixture body 10. The receiving groove 42 may penetrate one end of the slider 40 along its length direction toward the positioning groove 121 of the second mold body 12, and through one end of the slider 40 along its width direction toward the positioning groove 121 of the second mold body 12. The receiving groove 42 may be disposed opposite to and connected to the limiting groove 41 in the thickness direction of the slider 40. The receiving groove 42 may be used to accommodate part of the fixing bracket 220. Exemplarily, the limiting groove 41 and the receiving groove 42 may be arranged sequentially in the thickness direction of the slider 40.

[0243] Understandably, since the contact portion 2120 of the flexible circuit board 210 has been pre-fixed by the limiting groove 41 of the slider 40, when assembling the fixing bracket 220 with the flexible circuit board 210, the through hole 2230 of the fixing bracket 220 can be aligned with the contact portion 2120 of the flexible circuit board 210 fixed to the slider 40 before being placed on the slider 40. Furthermore, since the slider 40 is provided with a receiving groove 42, the receiving groove 42 can accommodate part of the fixing bracket 220, thereby achieving the external positioning of the fixing bracket 220 and restricting the movement of the fixing bracket 220 along the thickness direction perpendicular to the fixing bracket 220. This helps to prevent the fixing bracket 220 from shifting, deviating, or slipping off the slider 40 after being placed on it, resulting in high reliability.

[0244] In this embodiment, the slider 40 may include a sliding base 43 and an extension 44. The extension 44 is fixedly connected to the sliding base 43 and moves in conjunction with the sliding base 43. The extension 44 and the sliding base 43 can be connected to form an integral structure by assembly methods such as screw connection, welding, or bonding. Alternatively, the extension 44 and the sliding base 43 can also be connected to form an integral structure by a molding process.

[0245] Specifically, the sliding seat 43 can be installed in the first groove 1231 of the slide groove 123 and can slide relative to the fixture body 10 along the first groove 1231. One end of the extension 44 is fixedly connected to the sliding seat 43, and the other end of the extension 44 extends away from the sliding seat 43. Part of the extension 44 can be stacked with the sliding seat 43. That is, a portion of the projection of the extension 44 along the thickness direction of the slider 40 falls into the sliding seat 43. The extension 44 can be installed in the second groove 1232 of the slide groove 123, and at least a portion of the extension 44 is located in the second groove 1232. The end of the extension 44 away from the sliding seat 43 is provided with the limiting groove 41 and receiving groove 42 of the slider 40 described above. The extension 44 can be driven by the sliding seat 43 and slide relative to the fixture body 10 along the second groove 1232 to move closer to or away from the retaining wall 30.

[0246] It is understood that by making the slider 40 include a sliding seat 43 and an extension 44, and by mounting the sliding seat 43 in the first groove 1231 and the extension 44 in the second groove 1232, the extension 44 can slide along the second groove 1232 relative to the fixture body 10 when the sliding seat 43 slides along the first groove 1231 relative to the fixture body 10. During the sliding of the extension 44 along the second groove 1232 relative to the fixture body 10, the end of the extension 44 away from the sliding seat 43 can slide to the cover wall 30, so that the limiting groove 41 at that end can be positioned opposite to the cover wall 30 to clamp the contact portion 2120 of the flexible circuit board 210 abutting against the cover wall 30. Alternatively, the end of the extension 44 furthest from the slide block 43 can also slide to expose the retaining wall 30, so that the limiting groove 41 at that end can be misaligned with the retaining wall 30, thereby separating the limiting groove 41 from the contact portion 2120 of the flexible circuit board 210 abutting against the retaining wall 30. In other words, by designing the structure of the slider 40 and the sliding connection between the slider 40 and the fixture body 10, the fixing or separation between the limiting groove 41 of the slider 40 and the contact portion 2120 of the flexible circuit board 210 can be achieved conveniently and quickly. The operation is simple and helps to improve the assembly efficiency of the circuit board assembly 200.

[0247] Please continue reading. Figure 14 , Figure 24 and Figure 25 , Figure 24 This is a schematic diagram of another state of the circuit board assembly fixture 100 provided in the first embodiment of this application. Figure 25 yes Figure 14 The schematic diagram shows the structure of the slider 40 of the circuit board assembly fixture 100.

[0248] The extension 44 may include a connecting portion 441, a blocking portion 442, and a base plate 443. Along the length direction of the slider 40 (X direction in the diagram), the connecting portion 441, the blocking portion 442, and the base plate 443 are connected sequentially. The blocking portion 442 and the base plate 443 can be closed to form a receiving groove 42 for the slider 40.

[0249] Specifically, one end of the connecting portion 441 is fixedly connected to the sliding seat 43, and the other end of the connecting portion 441 is fixedly connected to the enclosure portion 442. The connecting portion 441 can extend along the length direction of the slider 40. The side of the enclosure portion 442 away from the connecting portion 441 is fixedly connected to the outer edge of the base plate 443. The enclosure portion 442 can extend along the circumferential direction of the base plate 443 and can be used to limit and fix the bracket 220. The end of the base plate 443 away from the enclosure portion 442 is provided with the aforementioned limiting groove 41, and the limiting groove 41 penetrates the base plate 443 along the thickness direction (Z direction in the figure). The base plate 443 can be recessed relative to the enclosure portion 442 away from the surface of the second mold body 12, and the extension direction can be perpendicular to the Z direction. That is, the base plate 443 can extend in a direction parallel to the XY plane. The base plate 443 can be used to support part of the fixing bracket 220. For example, the shape of the enclosure portion 442 can be L-shaped.

[0250] For example, there may be two limiting grooves 41, which are staggered along the length of the slider 40 and spaced apart along the width (Y direction in the figure). Each limiting groove 41 is used to fix one contact portion 2120 of the flexible circuit board 210. In some other embodiments, there may be one or more than two limiting grooves 41. The structures of more than two limiting grooves 41 may be similar, identical, or different, as long as the number of limiting grooves 41 is the same as the number of contact portions 2120 of the flexible circuit board 210, and one limiting groove 41 corresponds to one contact portion 2120 of the flexible circuit board 210. There is no strict limitation on this.

[0251] Understandably, when the slider 40 slides close to the retaining wall 30, the enclosure portion 442 and the base plate 443 can be positioned above the retaining wall 30. At this time, by placing the fixing bracket 220 on the slider 40, the base plate 443 can support part of the fixing bracket 220, allowing the through hole 2230 of the fixing bracket 220 to align with the contact portion 2120 of the flexible circuit board 210 clamped on the base plate 443 and to be passed through by the contact portion 2120 of the flexible circuit board 210. Furthermore, the enclosure portion 442 can block part of the outer edge of the fixing bracket 220 to position the fixing bracket 220 and restrict its movement along the direction perpendicular to its thickness (Z direction in the figure). That is, the enclosure portion 442 can restrict the movement of the fixing bracket 220 along a direction parallel to the XY plane.

[0252] Please refer to the following: Figure 14 , Figure 18 and Figure 24The circuit board assembly fixture 100 may further include a guide post 80. The guide post 80 may be located within the first groove 1231 of the slide 123 and fixedly connected to the fixture body 10. Specifically, the guide post 80 may include a first end 81 and a second end 82. The first end 81 and the second end 82 may be arranged opposite each other in the length direction (X direction in the figure) of the guide post 80. The first end 81 and the second end 82 may be fixed to two side walls arranged opposite each other in the length direction of the first groove 1231 to achieve a fixed connection between the guide post 80 and the fixture body 10. Wherein, the first end 81 is the end of the guide post 80 closer to the positioning groove 121, and the second end 82 is the end of the guide post 80 away from the positioning groove 121.

[0253] The sliding seat 43 of the slider 40 can be sleeved on the guide post 80 and can slide relative to the second mold body 12 along the guide post 80, so as to drive the extension body 44 of the slider 40 to slide relative to the second mold body 12. That is, the sliding seat 43 of the slider 40 can slide between the first end 81 and the second end 82 of the guide post 80, so that the extension body 44 of the slider 40 can slide between the first position T1 and the second position T2. ​​Specifically, as follows... Figure 24 As shown, when the sliding seat 43 of the slider 40 is located at the first end 81 of the guide post 80, the end of the extension 44 of the slider 40 away from the sliding seat 43 is in the first position T1 close to the retaining wall 30. Figure 14 As shown, when the sliding seat 43 of the slider 40 is located at the second end 82 of the guide post 80, the end of the extension body 44 of the slider 40 connected to the sliding seat 43 is in the second position T2 away from the retaining wall 30.

[0254] Understandably, the slider 40 can reciprocate between the first position T1 and the second position T2 along the guide post 80. When the slider 40 moves to the first position T1 near the retaining wall 30, the limiting groove 41 of the slider 40 can limit the contact portion 2120 of the flexible circuit board 210 abutting against the retaining wall 30. Furthermore, the contact portion 2120 of the flexible circuit board 210 extending from the limiting groove 41 of the slider 40 can also pass through the through hole 2230 of the fixed bracket 220 to complete the perforation operation between the flexible circuit board 210 and the fixed bracket 220. When the slider 40 moves to the second position T2 away from the retaining wall 30, the limiting groove 41 of the slider 40 separates from the contact portion 2120 of the flexible circuit board 210 after the perforation operation, and the fixed bracket 220 can be fixedly connected to the circuit board body 2110 of the flexible circuit board 210 to complete the assembly operation between the flexible circuit board 210 and the fixed bracket 220.

[0255] In summary, by moving the slider 40 between the first position T1 and the second position T2, the contact portion 2120 of the flexible circuit board 210 can be inserted into the through hole 2230 of the fixed bracket 220, and the circuit board body 2110 of the flexible circuit board 210 can be assembled with the fixed bracket 220, thereby realizing the assembly of the fixed bracket 220 and the flexible circuit board 210.

[0256] In this embodiment, the circuit board assembly fixture 100 may include at least a first state, a second state, a third state, a fourth state, and a fifth state. The first state may be the state where the circuit board assembly fixture 100 is assembled with the flexible circuit board 210. The second state may be the state where the circuit board assembly fixture 100 further fixes the contact portion 2120 of the flexible circuit board 210. The third state may be the state where the circuit board assembly fixture 100 perforates the contact portion 2120 of the flexible circuit board 210 and the through hole 2230 of the fixing bracket 220. The fourth state may be the state where the circuit board assembly fixture 100 fixes the fixing bracket 220. The fifth state may be the state where the circuit board assembly fixture 100 assembles the fixing bracket 220 and the flexible circuit board 210 together. The states of the circuit board assembly fixture 100 will be described in detail below.

[0257] Please refer to the following: Figure 14 and Figure 26 , Figure 26 yes Figure 14 The diagram shows the first state of assembling the circuit board assembly 200 using the circuit board assembly assembly fixture 100.

[0258] When the circuit board assembly fixture 100 is in the first state, the slider 40 does not slide relative to the fixture body 10 (i.e., the second mold body 12) and is in the second position T2. ​​The suction hole 23 is open and continuously suctions air. Part of the baffle 30 and part of the first positioning post 61 are both protruding relative to the connecting surface 21 of the platform 20. The suction hole 23 can abut the connecting surface 21 of the platform 20 with the circuit board body 2110 of the flexible circuit board 210 and abut the baffle 30 with the contact portion 2120 of the flexible circuit board 210 by suction, so that the flexible circuit board 210 is fixed to the connecting surface 21 of the platform 20. That is, the suction hole 23 and the baffle 30 can cooperate to switch the flexible circuit board 210 from the initial state to the perforated state. At this time, the first positioning hole 2130 of the circuit board body 2110 is inserted into the first positioning post 61. Part of the contact portion 2120 is located in the slot 33 of the baffle 30. The contact portion 2120 is bent and connected to the circuit board body 2110 and remains vertical. The end of the contact portion 2120 away from the circuit board body 2110 extends out of the retaining wall 30 and protrudes from the end face of the retaining wall 30 away from the shelf 20. The two contact portions 2120 can simultaneously abut against the two retaining walls 30 respectively.

[0259] It is understandable that by continuously drawing air through the suction hole 23, the circuit board body 2110 can be adsorbed onto the connecting surface 21 of the platform 20, and the contact portion 2120 can be adsorbed onto the retaining wall 30, thereby fixing the flexible circuit board 210 as a whole to the connecting surface 21 of the platform 20. Since the contact portion 2120 is fixed to the retaining wall 30, the extension direction of the contact portion 2120 can be changed from being parallel to the extension direction of the circuit board body 2110 initially to being perpendicular to the extension direction of the circuit board body 2110. That is, the contact portion 2120 will be kept vertical by the retaining wall 30 to fix the initial direction of subsequent perforation with the through hole 2230 of the fixing bracket 220.

[0260] Please refer to the following: Figure 14 , Figure 26 and Figure 27 , Figure 27 yes Figure 14 The diagram shows a second state of assembling the circuit board assembly 200 using the circuit board assembly assembly fixture 100.

[0261] When the circuit board assembly fixture 100 is in the second state, the same content as in the first state will not be repeated. The difference is that, in this state, the flexible circuit board 210 remains in a perforated state, and the slider 40 slides relative to the fixture body 10 (i.e., the second mold 12) towards the retaining wall 30 and is in the first position T1. The retaining wall 30 and a portion of the slider 40 are positioned opposite each other in the Z direction and spaced apart. The slot 33 of the retaining wall 30 and the limiting slot 41 of the slider 40 are positioned opposite each other in the Z direction. The contact portion 2120 extending from the retaining wall 30 passes through the limiting slot 41 of the slider 40 and is fixed by the limiting slot 41 of the slider 40. That is, the limiting slot 41 of the slider 40 allows the contact portion 2120, which abuts against the retaining wall 30, to pass through and clamp the contact portion 2120. Furthermore, the end of the contact portion 2120 away from the circuit board body 2110 extends out of the limiting slot 41 of the slider 40 and into the receiving slot 42 of the slider 40. The two contact parts 2120 can be simultaneously clamped by the two limiting grooves 41.

[0262] Understandably, when the circuit board assembly jig 100 switches from the first state to the second state, the limiting groove 41 of the slider 40 can clamp the contact portion 2120 of the flexible circuit board 210 to precisely position the contact portion 2120 of the flexible circuit board 210 and control the contact portion 2120 of the flexible circuit board 210 to remain in a vertical state. This facilitates the precise and quick passage of the contact portion 2120 of the flexible circuit board 210 through the through hole 2230 of the fixed bracket 220 during the subsequent perforation process, thereby achieving precise control over the position of the contact portion 2120 of the flexible circuit board 210.

[0263] Please refer to the following: Figure 14 , Figure 27 and Figure 28 , Figure 28 yes Figure 14 The diagram shows the third state of assembling the circuit board assembly 200 using the circuit board assembly assembly fixture 100.

[0264] When the circuit board assembly fixture 100 is in the third state, the same content as in the second state will not be repeated. The difference is that, at this time, the fixing bracket 220 is placed on the slider 40. Part of the fixing bracket 220 is located within the receiving groove 42 of the slider 40 and is limited by the slider 40. That is, the receiving groove 42 is used to receive part of the fixing bracket 220 and also to cooperate with the fixture body 10 to limit the fixing bracket 220. At this time, the positioning groove 121 of the second mold body 12 is arranged opposite to the fixing bracket 220 in the Z direction, the second positioning post 62 is arranged opposite to the second positioning hole 2260 of the fixing bracket 220 in the Z direction, and the limiting groove 41 of the slider 40 is arranged opposite to and communicates with the through hole 2230 of the fixing bracket 220 in the Z direction. Furthermore, the contact portion 2120 extending from the limiting groove 41 of the slider 40 passes through the through hole 2230 of the fixing bracket 220. That is, the limiting groove 41 is used to communicate with the through hole 2230 of the fixing bracket 220, so that the end of the contact portion 2120 away from the circuit board body 2110 passes through the through hole 2230 of the fixing bracket 220. The length of the contact portion 2120 extending out of the through hole 2230 of the fixing bracket 220 is a first length. The two contact portions 2120 can simultaneously pass through the two through holes 2230 of the fixing bracket 220 respectively.

[0265] Understandably, when the circuit board assembly fixture 100 switches from the second state to the third state, the receiving groove 42 of the slider 40 can accommodate part of the fixing bracket 220 and perform external positioning of the fixing bracket 220. The second positioning post 62 can be aligned with the second positioning hole 2260 of the fixing bracket 220 and assist the slider 40 in precisely positioning the fixing bracket 220. At this time, the contact part 2120 clamped by the limiting groove 41 of the slider 40 can pass through the through hole 2230 of the fixing bracket 220, realizing the through hole between the flexible circuit board 210 and the fixing bracket 220.

[0266] Please refer to the following: Figure 14 , Figure 28 and Figure 29 , Figure 29 yes Figure 14 The diagram shows the fourth state of the circuit board assembly assembly fixture 100 assembling the circuit board assembly 200.

[0267] When the circuit board assembly fixture 100 is in the fourth state, the same content as in the third state will not be repeated. The difference is that, at this time, the slider 40 slides away from the retaining wall 30 relative to the fixture body 10 (i.e., the second mold 12) and is in the second position T2. ​​The retaining wall 30 and the slider 40 are offset and spaced apart. The fixing bracket 220 is located in the positioning groove 121 of the second mold 12 to fix it to the second mold 12. That is, the positioning groove 121 is used to accommodate the fixing bracket 220 to fix the fixing bracket 220 to the second mold 12. The second positioning post 62 passes through the second positioning hole 2260 of the fixing bracket 220 and is inserted into the second positioning hole 2260 of the fixing bracket 220. The length of the through hole 2230 extending from the contact portion 2120 of the fixing bracket 220 is the second length. The second length is greater than the first length. The circuit board body 2110 fixed to the platform 20 and the fixing bracket 220 fixed to the second module 12 are spaced apart in the Z direction.

[0268] Understandably, when the circuit board assembly fixture 100 switches from the third state to the fourth state, the slider 40 resets to the first position T1, and the fixing bracket 220 is installed in the positioning groove 121 of the second mold 12 to achieve linkage with the second mold 12. The fixing bracket 220 can also achieve precise positioning with the second mold 12 through the insertion of the second positioning post 62 and the second positioning hole 2260, so that the fixing bracket 220 is not easy to slip off the second mold 12.

[0269] Please see Figure 14 , Figure 29 and Figure 30 , Figure 30 yes Figure 14 The diagram shows the fifth state of the circuit board assembly assembly fixture 100 assembling the circuit board assembly 200.

[0270] When the circuit board assembly fixture 100 is in the fifth state, the same content as in the fourth state will not be repeated. The difference is that, in this state, the second mold 12 can descend relative to the first mold 11 and approach it, causing the fixed bracket 220 fixed thereon to descend relative to the platform 20. This connects the fixed bracket 220 fixed to the second mold 12 with the circuit board body 2110 fixed to the platform 20, completing the through-hole assembly of the fixed bracket 220 and the flexible circuit board 210. The length of the through hole 2230 extending from the fixed bracket 220 in the contact portion 2120 is the third length. This third length is greater than the second length.

[0271] It is understandable that when the circuit board assembly jig 100 switches from the fourth state to the fifth state, the fixing bracket 220 can be pressed down under the drive of the second mold 12 to fit onto the circuit board body 2110, thereby connecting the fixing bracket 220 and the circuit board body 2110, and completing the perforation of the contact part 2120 and the through hole 2230 of the fixing bracket 220.

[0272] As the circuit board assembly fixture 100 gradually switches from the first state to the fifth state, it completes the assembly of one flexible circuit board 210 and one fixed bracket 220. At this point, the fixture 100 can return to the first state and repeat the above process for the next flexible circuit board 210 and the next fixed bracket 220, thus completing the assembly of multiple circuit board assemblies 200. Furthermore, the assembly of the flexible circuit board 210 can be completed either within or outside the circuit board assembly fixture 100; there is no strict limitation on this.

[0273] Second embodiment:

[0274] Please see Figure 31 , Figure 31 This is a schematic diagram of one state of the circuit board assembly jig 100 provided in the second embodiment of this application. In this embodiment, the contents that are the same as in the first embodiment will not be repeated, and the contents that are different from the first embodiment will be described in detail below. Furthermore, the descriptions of structural improvements to the circuit board assembly jig 100 below can be applied to the circuit board assembly jig 100 of the first embodiment above, unless otherwise specified.

[0275] In this embodiment, the circuit board assembly fixture 100 may include a fixture body 10, a platform 20, a retaining wall 30, a slider 40, a first positioning post 61, a second positioning post 62, an air pipe connector (not shown), a first elastic element (not shown), a second elastic element (not shown), and a guide post 80. The structures of the fixture body 10, platform 20, retaining wall 30, slider 40, first positioning post 61, second positioning post 62, air pipe connector, first elastic element, second elastic element, and guide post 80 can generally refer to the relevant descriptions of the fixture body 10, platform 20, retaining wall 30, slider 40, first positioning post 61, second positioning post 62, first elastic element 71, second elastic element 72, and guide post 80 in the first embodiment, and will not be repeated here.

[0276] Please refer to the following: Figure 31 , Figure 32 and Figure 33 , Figure 32 yes Figure 31The diagram shows a partial structural representation of the fixture body 10 of the circuit board assembly fixture 100. Figure 33 yes Figure 31 This is a schematic diagram of another part of the fixture body 10 of the circuit board assembly fixture 100 shown.

[0277] In this embodiment, the fixture body 10 may include a first mold 11 and a second mold 12. The first mold 11 may be provided with a first mounting groove 111, an air intake channel (not shown), a groove (not shown), a third mounting hole (not shown), and a fourth mounting hole (not shown). The second mold 12 may be provided with a positioning groove 121, a slot 122, a sliding groove 123, and a second mounting groove (not shown). The sliding groove 123 may include a first groove 1231 and a second groove 1232. The structures of the first mold 11, second mold 12, first mounting groove 111, air intake channel, groove, third mounting hole, fourth mounting hole, positioning groove 121, slot 122, sliding groove 123, second mounting groove, first groove 1231, and second groove 1232 of the fixture body 10 can be generally referred to the relevant descriptions of the first mold 11, second mold 12, first mounting groove 111, air intake channel 112, groove 113, third mounting hole 114, fourth mounting hole 115, positioning groove 121, slot 122, sliding groove 123, second mounting groove 124, first groove 1231, and second groove 1232 in the first embodiment, and will not be repeated here.

[0278] Please refer to the following: Figure 32 and Figure 34 , Figure 34 yes Figure 31 A schematic diagram of the structure of the platform 20 of the circuit board assembly fixture 100 shown.

[0279] In this embodiment, the platform 20 may have a cavity (not shown), a first mounting hole 24, and a second mounting hole 25. The platform 20 may include a connecting surface 21, a base 26, and a boss 27. The connecting surface 21 may have an air intake hole 23. The first mounting hole 24 may include a first hole (not shown) and a second hole (not shown). The second mounting hole 25 may include a third hole (not shown) and a fourth hole (not shown). The structure of the cavity, first mounting hole 24, second mounting hole 25, connecting surface 21, base 26, boss 27, air intake hole 23, first hole, second hole, third hole, and fourth hole of the platform 20 can be generally referred to the relevant description of the cavity 22, first mounting hole 24, second mounting hole 25, connecting surface 21, base 26, boss 27, air intake hole 23, first hole 241, second hole 242, third hole 251, and fourth hole 252 in the first embodiment, and will not be repeated here.

[0280] The difference between the shelf 20 in this embodiment and the shelf 20 in the first embodiment is that the number of first mounting holes 24 can be one. One first mounting hole 24 is used for a contact portion 2120 of the flexible circuit board 210 to pass through.

[0281] For example, the number of air intake holes 23 can be fifteen. The fifteen air intake holes 23 are arranged at intervals on the connecting surface 21.

[0282] In this embodiment, the retaining wall 30 may be provided with a slot (not shown). The retaining wall 30 may include a first sub-part (not shown) and a second sub-part (not shown). The structure of the slot, the first sub-part, and the second sub-part of the retaining wall 30 can be generally referred to the relevant description of the slot 33, the first sub-part 31, and the second sub-part 32 in the first embodiment, and will not be repeated here.

[0283] The difference between the retaining wall 30 in this embodiment and the shelf 20 in the first embodiment is that the number of retaining walls 30 can be one. One retaining wall 30 is used to abut against and fix a contact portion 2120 of the flexible circuit board 210.

[0284] In this embodiment, the first positioning post 61 may include a third sub-part (not shown) and a fourth sub-part (not shown). The structure of the third and fourth sub-parts of the first positioning post 61 can be generally referred to the relevant description of the third sub-part 611 and the fourth sub-part 612 in the first embodiment, and will not be repeated here.

[0285] Please refer to the following: Figure 31 , Figure 33 , Figure 35 and Figure 36 , Figure 35 This is a schematic diagram of another state of the circuit board assembly fixture 100 provided in the second embodiment of this application. Figure 36 yes Figure 31 The diagram shows the structure of the slider 40 in the circuit board assembly fixture 100. Figure 31 In the middle, slider 40 is away from retaining wall 30 and is in the second position T2. Figure 35 In the middle, slider 40 is close to retaining wall 30 and is in the first position T1.

[0286] The slider 40 may be provided with a limiting groove 41 and a receiving groove 42. The slider 40 may include a sliding seat 43 and an extension body 44. The sliding seat 43 can slide between the first end 81 and the second end 82 of the guide post 80. The extension body 44 may include a connecting part 441, a blocking part 442, and a base plate 443. The structures of the limiting groove 41, the receiving groove 42, the sliding seat 43, the extension body 44, the connecting part 441, the blocking part 442, and the base plate 443 of the slider 40 can be generally referred to the relevant descriptions of the limiting groove 41, the receiving groove 42, the sliding seat 43, the extension body 44, the connecting part 441, the blocking part 442, and the base plate 443 in the first embodiment, and will not be repeated here.

[0287] The slider 40 in this embodiment differs from the platform 20 in the first embodiment in that the number of limiting grooves 41 can be one. One limiting groove 41 is used to fix one contact portion 2120 of the flexible circuit board 210.

[0288] In this embodiment, the circuit board assembly jig 100 may include at least a first state, a second state, a third state, a fourth state, and a fifth state. The first, second, third, fourth, and fifth states of the circuit board assembly jig 100 can be broadly described with reference to the relevant descriptions of the first, second, third, fourth, and fifth states in the first embodiment, and will not be repeated here.

[0289] Please see Figure 37 , Figure 37 This is a schematic flowchart of the assembly method of the circuit board assembly 200 provided in the first embodiment of this application.

[0290] The embodiments of this application also provide an assembly method for the circuit board assembly 200 of the first embodiment. For details regarding the structure and related description of the circuit board assembly 200 and the circuit board assembly assembly fixture 100 involved in the assembly method, please refer to [reference needed]. Figures 2-7 , Figures 14-30 The description above will not be repeated here. Furthermore, the following text will continue to use... Figures 2-7 The circuit board assembly 200 shown, and Figures 14-30 The circuit board assembly assembly fixture 100 shown is used as an example for further description. Unless otherwise specified, these descriptions can be applied to the circuit board assembly 200 and the circuit board assembly assembly fixture 100 of the first embodiment described above.

[0291] Please refer to the following: Figures 2-7 , Figures 14-30 and Figure 37 The assembly method of the circuit board assembly 200 may include at least steps S100, S200, S300, S400, and S500, which are described in detail below:

[0292] S100; Provides a circuit board assembly jig 100, a flexible circuit board 210, and a fixing bracket 220, wherein the circuit board assembly jig 100 includes a jig body 10, a platform 20, a retaining wall 30, and a slider 40. The platform 20 is embedded in the jig body 10 and includes a connecting surface 21. At least part of the retaining wall 30 is exposed outside the platform 20 and protrudes relative to the connecting surface 21. The slider 40 is slidably connected to the jig body 10 and has a limiting groove 41 that penetrates the slider 40 along the thickness direction of the slider 40.

[0293] S200; The flexible circuit board 210 is fixed to the shelf 20, wherein the flexible circuit board 210 includes a circuit board body 2110 and a contact portion 2120 connected to each other. The circuit board body 2110 is fixed to the connecting surface 21, the contact portion 2120 abuts against the retaining wall 30, and the contact portion 2120 is bent relative to the circuit board body 2110.

[0294] The connecting surface 21 is provided with an air intake hole 23, which is spaced apart from the retaining wall 30. The two contact parts 2120 will simultaneously abut against the two retaining walls 30.

[0295] In this step, fixing the flexible circuit board 210 to the shelf 20 may include:

[0296] Step 1: Move the flexible circuit board 210 above the platform 20. The flexible circuit board 210 includes a circuit board body 2110 and a contact portion 2120 connected to each other. The extending direction of the contact portion 2120 is parallel to the extending direction of the circuit board body 2110.

[0297] Step 2: Control the air intake hole 23 to draw in air, and clamp the circuit board body 2110 to the connecting surface 21 and hold the contact part 2120 against the barrier wall 30 so that the contact part 2120 bends relative to the circuit board body 2110.

[0298] S300; Drive slider 40 to slide towards the retaining wall 30 so that limit groove 41 fixes contact part 2120.

[0299] S400; Place the fixing bracket 220 on the slider 40 so that the contact portion 2120 passes through the through hole 2230 of the fixing bracket 220.

[0300] Part of the fixing bracket 220 is located within the receiving groove 42 of the slider 40. The two contact parts 2120 pass through the two through holes 2230 of the fixing bracket 220 simultaneously.

[0301] S500; Drive the slider 40 to slide away from the retaining wall 30 and separate from the contact part 2120 and the fixed bracket 220, so that the fixed bracket 220 is fixedly connected to the circuit board body 2110.

[0302] The fixture body 10 may include a first mold 11 and a second mold 12. A platform 20 is fixedly connected to the first mold 11. The second mold 12 surrounds the platform 20 and is vertically connected to the first mold 11.

[0303] In this step, the drive slider 40 slides away from the retaining wall 30 to separate from the contact portion 2120 and the fixing bracket 220, so that the fixing bracket 220 is fixedly connected to the circuit board body 2110, which may include:

[0304] Step 1: Drive the slider 40 to slide away from the retaining wall 30 and separate it from the fixed bracket 220 so that the fixed bracket 220 is fixed to the second mold 12. The fixed bracket 220 fixed to the second mold 12 and the circuit board body 2110 fixed to the platform 20 are spaced apart in the thickness direction of the circuit board assembly fixture 100.

[0305] Step 2: Drive the second module 12 to lower the fixed bracket 220 relative to the platform 20, so as to connect the fixed bracket 220 fixed to the second module 12 with the circuit board body 2110 fixed to the platform 20.

[0306] The embodiments of this application also provide a method for assembling a circuit board assembly 200 according to a second embodiment. For details regarding the structure and related descriptions of the circuit board assembly 200 and the circuit board assembly assembly fixture 100 involved in the assembly method, please refer to [link to relevant documentation]. Figures 8-13 , Figures 31-36 The description above will not be repeated here. Furthermore, the following text will continue to use... Figures 8-13 The circuit board assembly 200 shown, and Figures 31-36 The circuit board assembly assembly fixture 100 shown is used as an example for further description. Unless otherwise specified, these descriptions can be applied to the circuit board assembly 200 and the circuit board assembly assembly fixture 100 of the second embodiment described above.

[0307] Please refer to the following: Figures 8-13 , Figures 31-36 and Figure 37 In this embodiment, the assembly method of the circuit board assembly 200 may also include at least steps S100, S200, S300, S400, and S500 of the first embodiment. The contents identical to those in the assembly method provided in the first embodiment will not be repeated. The difference from the assembly method provided in the first embodiment is that the fixing bracket 220 in this embodiment has a through hole 2230, the flexible circuit board 210 includes a contact portion 2120, and the circuit board assembly assembly fixture 100 includes a retaining wall 30.

[0308] The embodiments of this application have been described in detail above. Specific examples have been used to illustrate the principles and implementation methods of this application. The description of the above embodiments is only for the purpose of helping to understand the method and core ideas of this application. At the same time, for those skilled in the art, there will be changes in the specific implementation methods and application scope based on the ideas of this application. Therefore, the content of this specification should not be construed as a limitation of this application.

Claims

1. A circuit board assembly jig, characterized in that, The circuit board assembly fixture includes: Fixture body; A storage platform is embedded in the fixture body, and the storage platform includes a connecting surface for fixing the circuit board body of the flexible circuit board. A retaining wall, at least a portion of which is exposed outside the shelf and protrudes relative to the connecting surface, is used to abut against a contact portion of the flexible circuit board, the contact portion being connected to the circuit board body and bent relative to the circuit board body; and A slider is slidably connected to the fixture body. The slider is provided with a limiting groove that extends through the slider along its thickness direction. The limiting groove is used to fix the contact portion abutting against the retaining wall when the slider slides close to the retaining wall, so that the contact portion passes through the through hole of the fixing bracket. The limiting groove is also used to separate from the contact portion when the slider slides away from the retaining wall, so that the circuit board body is fixedly connected to the fixing bracket.

2. The circuit board assembly fixture as described in claim 1, characterized in that, The connecting surface is provided with air suction holes, which are spaced apart from the baffle wall. The air suction holes are used to hold the circuit board body tightly against the connecting surface and to hold the contact portion against the baffle wall when adsorbing the flexible circuit board, so that the contact portion bends relative to the circuit board body.

3. The circuit board assembly fixture as described in claim 2, characterized in that, The circuit board assembly fixture further includes a first positioning post, at least a portion of which can protrude relative to the connecting surface. The first positioning post is spaced apart from the retaining wall and the air intake hole, and is used to be inserted into the first positioning hole of the circuit board body.

4. The circuit board assembly fixture as described in claim 3, characterized in that, The fixture body includes a first mold and a second mold. The platform is fixedly connected to the first mold, and the second mold surrounds the platform and is vertically connected to the first mold. One end of the first positioning post is vertically connected to the first mold body. The first positioning post passes through the platform and the other end of the first positioning post protrudes from the connecting surface. The first positioning post can descend relative to the connecting surface after being pressed and return to its original position after the pressure is removed. And / or, One end of the retaining wall is vertically connected to the first mold body, the retaining wall passes through the platform, and the other end of the retaining wall protrudes from the connecting surface. The retaining wall can descend relative to the connecting surface after being pressed and return to its original position after the pressure is removed.

5. The circuit board assembly fixture as described in any one of claims 2-4, characterized in that, The retaining wall is provided with a groove, which is recessed from the outer surface of the retaining wall to the interior of the retaining wall. The groove also extends through the end face of the retaining wall away from the connecting surface and is used to accommodate part of the contact portion.

6. The circuit board assembly fixture as described in any one of claims 2-4, characterized in that, The fixture body is provided with a sliding groove, which is arranged adjacent to the storage platform; The slider is connected to the slide groove, and the slider can slide relative to the fixture body between a first position and a second position in a direction that is close to or far from the retaining wall; When the slider is in the first position, a portion of the slider's projection along the thickness direction of the circuit board assembly fixture falls onto the platform, and the retaining wall and the limiting groove are arranged opposite to each other in the thickness direction of the circuit board assembly fixture. When the slider is in the second position, the slider is misaligned with and spaced apart from the retaining wall.

7. The circuit board assembly fixture as described in claim 6, characterized in that, The slide includes a first groove and a second groove, the first groove and the second groove are arranged sequentially and connected in the thickness direction of the circuit board assembly fixture, and the opening of the first groove is located on the bottom wall of the second groove. The slider includes a sliding seat and an extension body. The sliding seat is connected to the first groove and can slide relative to the fixture body along the first groove. The extension body is fixedly connected to the sliding seat. Part of the extension body is stacked with the sliding seat. The end of the extension body away from the sliding seat is provided with the limiting groove. At least part of the extension body is located in the second groove. The extension body can be driven by the sliding seat and slide relative to the fixture body along the second groove to move closer to or away from the retaining wall.

8. The circuit board assembly fixture as described in claim 7, characterized in that, The circuit board assembly fixture also includes a guide post, which is located in the first groove and fixedly connected to the fixture body. The guide post includes a first end and a second end. The sliding seat is sleeved on the guide post and can slide between the first end and the second end. When the sliding seat is located at the first end, the end of the extension body away from the sliding seat is in the first position; when the sliding seat is located at the second end, the end of the extension body connected to the sliding seat is in the second position.

9. The circuit board assembly fixture as described in claim 7, characterized in that, The extension includes a connecting part, a blocking part, and a base plate. One end of the connecting part is fixedly connected to the sliding seat, and the other end of the connecting part is fixedly connected to the blocking part. The side of the blocking part away from the connecting part is fixedly connected to the outer edge of the base plate. The blocking part extends along the circumferential direction of the base plate and is used to limit the fixed bracket. The extension direction of the base plate is perpendicular to the thickness direction of the circuit board assembly fixture. The base plate is provided with the limiting groove and is used to support part of the fixed bracket.

10. The circuit board assembly jig as described in claim 6, characterized in that, The circuit board assembly fixture also includes a first state. When the circuit board assembly fixture is in the first state, the slider is in the second position, and the air suction hole abuts the connecting surface against the circuit board body and abuts the retaining wall against the contact portion by suction.

11. The circuit board assembly jig as described in claim 6, characterized in that, The circuit board assembly fixture also includes a second state. When the circuit board assembly fixture is in the second state, the slider is in the first position, and the limiting groove is used for the contact portion that abuts against the retaining wall to pass through and clamp the contact portion.

12. The circuit board assembly fixture as described in claim 6, characterized in that, The slider is also provided with a receiving groove, which is connected to the limiting groove, and the circuit board assembly fixture also includes a third state; When the circuit board assembly fixture is in the third state, the slider is in the first position, the receiving groove is used to receive part of the fixed bracket, and is also used to cooperate with the fixture body to limit the fixed bracket. The limiting groove is used to communicate with the through hole of the fixed bracket so that the end of the contact part away from the circuit board body passes through the through hole of the fixed bracket.

13. The circuit board assembly fixture as described in claim 6, characterized in that, The fixture body includes a first mold and a second mold. The platform is fixedly connected to the first mold. The second mold surrounds the platform and is vertically connected to the first mold. The second mold is provided with a slot, a positioning slot and the sliding groove. The slot extends through the second mold body along the thickness direction of the second mold body, and part of the platform is located in the slot. The slot can expose the connecting surface and the retaining wall. The opening of the positioning groove is located on the surface of the second mold body opposite to the first mold body. The positioning groove is connected to the slide groove. The bottom wall of the positioning groove can rise or fall relative to the connecting surface. The positioning groove is used to accommodate the fixed bracket. The opening of the slide groove is located on the surface of the second mold body opposite to the first mold body, and the slide groove is adjacent to and connected to the positioning groove.

14. The circuit board assembly fixture as described in claim 13, characterized in that, The circuit board assembly fixture also includes a second positioning post, which is fixedly connected to the bottom wall of the positioning groove. The circuit board assembly fixture also includes a fourth state. When the circuit board assembly fixture is in the fourth state, the slider is in the second position, the second positioning post is used to pass through the second positioning hole of the fixed bracket, and the positioning groove is used to accommodate the fixed bracket to fix the fixed bracket to the second mold body.

15. The circuit board assembly fixture as described in claim 14, characterized in that, When the circuit board assembly fixture is in the fourth state, the circuit board body fixed to the platform and the fixing bracket fixed to the second mold are spaced apart in the thickness direction of the circuit board assembly fixture. The circuit board assembly fixture also includes a fifth state. When the circuit board assembly fixture is in the fifth state, the slider is in the second position. The second mold is used to drive the fixed bracket to descend relative to the platform, so as to connect the fixed bracket fixed to the second mold to the circuit board body fixed to the platform.

16. A method for assembling a circuit board assembly, characterized in that, The assembly method of the circuit board assembly includes: A circuit board assembly fixture, a flexible circuit board, and a fixing bracket are provided. The circuit board assembly fixture includes a fixture body, a platform, a retaining wall, and a slider. The platform is embedded in the fixture body and includes a connecting surface. At least a portion of the retaining wall is exposed outside the platform and protrudes relative to the connecting surface. The slider is slidably connected to the fixture body and has a limiting groove that penetrates the slider along its thickness direction. The flexible circuit board is fixed to the platform, wherein the flexible circuit board includes a circuit board body and a contact portion connected together, the circuit board body is fixed to the connecting surface, the contact portion abuts against the retaining wall, and the contact portion is bent relative to the circuit board body; Drive the slider to slide towards the retaining wall so that the limiting groove fixes the contact part; and The fixing bracket is placed on the slider so that the contact portion passes through the through hole of the fixing bracket; and The slider is driven to slide away from the retaining wall and separate from the contact part and the fixed bracket, so that the fixed bracket is fixedly connected to the circuit board body.

17. The method for assembling a circuit board assembly as described in claim 16, characterized in that, The connecting surface is provided with an air suction hole, which is spaced apart from the retaining wall. Fixing the flexible circuit board to the shelf includes: The flexible circuit board is moved above the platform, wherein the flexible circuit board includes a connected circuit board body and a contact portion, and the extending direction of the contact portion is parallel to the extending direction of the circuit board body; and The air intake is controlled to draw in air, and the circuit board body is pressed tightly against the connecting surface and the contact portion is held against the barrier wall, so that the contact portion is bent relative to the circuit board body.

18. The method for assembling a circuit board assembly as described in claim 16 or 17, characterized in that, The fixture body includes a first mold and a second mold. The platform is fixedly connected to the first mold, and the second mold surrounds the platform and is vertically and vertically connected to the first mold. Driving the slider to slide away from the retaining wall and separate from the contact portion and the fixed bracket, so that the fixed bracket is fixedly connected to the circuit board body, includes: The slider is driven to slide away from the retaining wall and separate from the fixed bracket, so that the fixed bracket is fixed to the second mold body, wherein the fixed bracket fixed to the second mold body and the circuit board body fixed to the platform are spaced apart in the thickness direction of the circuit board assembly fixture; and The second mold is driven to lower the fixed bracket relative to the platform, so as to connect the fixed bracket fixed to the second mold to the circuit board body fixed to the platform.

19. The method for assembling a circuit board assembly as described in claim 18, characterized in that, One end of the retaining wall is vertically connected to the first mold body, the retaining wall passes through the platform, and the other end of the retaining wall protrudes from the connecting surface. The retaining wall can descend relative to the connecting surface after being pressed and return to its original position after the pressure is removed.

20. A circuit board assembly, characterized in that, The circuit board assembly is assembled using at least the circuit board assembly assembly fixture as described in any one of claims 1-15.

21. An electronic device, characterized in that, The electronic device includes the circuit board assembly as described in claim 20.

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