Circuit board assembly installation method and circuit board assembly

Abstract

The invention provides a circuit board assembly installation method comprising the following steps: arranging a cable joint on a support disc, and fixing the cable joint relative to the support disc through a joint positioning structure; the connecting side, used for being connected with an interface, of the cable connector deviates from the supporting disc. And pressing the side, provided with the interface, of the circuit board towards the side, provided with the cable joint, of the supporting disc, so that the interface is connected with the connecting side of the cable joint. The invention further provides a circuit board assembly.

Description

Technical Field

[0001] This disclosure relates to the field of circuit board technology, and in particular to a method for mounting circuit board assemblies and a circuit board assembly. Background Technology

[0002] A printed circuit board (PCB) may have an interface (such as a socket) for connecting to internal leads, thereby connecting cable connectors (such as plugs) to the interface, which is equivalent to connecting the leads in the circuit board to external cables.

[0003] In some related technologies, during the process of installing cable connectors onto circuit boards, the connected cables are prone to contact and interference with the circuit board structure (such as components on the circuit board surface), affecting installation and even causing structural damage. Summary of the Invention

[0004] This disclosure provides a method for mounting a circuit board assembly and a circuit board assembly.

[0005] In a first aspect, embodiments of this disclosure provide a method for mounting a circuit board assembly, comprising:

[0006] A cable connector is mounted on a support plate and fixed relative to the support plate by a connector positioning structure; wherein, the connection side of the cable connector used for connecting to the interface is away from the support plate;

[0007] Press the side of the circuit board with the interface toward the side of the support plate with the cable connector, so that the interface is connected to the connection side of the cable connector.

[0008] In a second aspect, embodiments of this disclosure provide a circuit board assembly, which includes:

[0009] Support plate;

[0010] A cable connector is provided on one side of the support plate, and the connection side of the cable connector for connecting to the interface is opposite to the support plate.

[0011] A circuit board is provided on the side of the cable connector away from the support plate, and the interface is provided on the side of the circuit board facing the support plate. The interface is connected to the connection side of the cable connector.

[0012] The circuit board assembly further includes:

[0013] A connector positioning structure is provided for fixing the cable connector relative to the support plate.

[0014] According to the embodiments of this disclosure, the cable connector is first set on the support plate. After the cable connector is positioned, the circuit board is pressed down to connect the interface to the cable connector. Therefore, during the process of setting the cable connector in the embodiments of this disclosure, the cable connected to the cable connector cannot interfere with the structure in the circuit board, so as not to affect the installation or cause structural damage. Attached Figure Description

[0015] In the accompanying drawings of the embodiments disclosed herein:

[0016] Figure 1 A flowchart illustrating a method for mounting a circuit board assembly provided in this disclosure embodiment;

[0017] Figure 2 A flowchart illustrating another method for mounting a circuit board assembly provided in this disclosure embodiment;

[0018] Figure 3 A schematic diagram of the fixture used in another method for mounting a circuit board assembly provided in an embodiment of this disclosure;

[0019] Figure 4 A schematic diagram of the support disk used in another method of mounting a circuit board assembly provided in an embodiment of this disclosure;

[0020] Figure 5 A side view of the process of mounting a support plate on a fixture in another method of mounting a circuit board assembly provided in an embodiment of this disclosure;

[0021] Figure 6 A schematic diagram of the support plate disposed on the fixture in another method for mounting a circuit board assembly provided in an embodiment of this disclosure;

[0022] Figure 7 for Figure 6 A magnified schematic diagram of a portion of region A in the middle;

[0023] Figure 8 A side view of the process of setting a cable connector on a support plate in another method of mounting a circuit board assembly provided in an embodiment of this disclosure;

[0024] Figure 9 A partially enlarged structural diagram of the support plate after the cable connector is set in another method for mounting a circuit board assembly provided in an embodiment of this disclosure;

[0025] Figure 10 A side view of the process of pressing the circuit board in another method of mounting a circuit board assembly provided in this disclosure embodiment;

[0026] Figure 11A side view of the process of setting fixing bolts in the second bolt hole and the third bolt hole in another method for mounting a circuit board assembly provided in an embodiment of this disclosure;

[0027] Figure 12 A side view of the process of setting fixing bolts in the third connector positioning hole and the second connector positioning hole in another method of mounting a circuit board assembly provided in an embodiment of this disclosure;

[0028] Figure 13 This is a side view schematic diagram of another circuit board assembly provided in an embodiment of this disclosure.

[0029] In this embodiment of the disclosure, the meanings of the reference numerals may include:

[0030] 1. Support plate; 11. Connector boss; 2. Cable connector; 29. ​​Cable; 3. Circuit board; 31. Interface; 41. First connector positioning hole; 42. Second connector positioning hole; 43. Third connector positioning hole; 49. Connector positioning post; 5. Fixture; 61. Support plate positioning hole; 69. Support plate positioning post; 71. First bolt hole; 72. Second bolt hole; 79. Fixing bolt. Detailed Implementation

[0031] To enable those skilled in the art to better understand the technical solutions of this disclosure, the method for installing circuit board assemblies and the circuit board assemblies provided in the embodiments of this disclosure will be described in detail below with reference to the accompanying drawings.

[0032] The present disclosure will be described more fully below with reference to the accompanying drawings; however, the embodiments shown may be embodied in different forms, and the present disclosure should not be construed as limited to the embodiments set forth below. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will enable those skilled in the art to fully understand the scope of the disclosure.

[0033] The accompanying drawings of the embodiments disclosed herein are provided to further illustrate the embodiments of this disclosure and form part of the specification. They are used together with the detailed embodiments to explain this disclosure and do not constitute a limitation thereof. The above and other features and advantages will become more apparent to those skilled in the art from the description of the detailed embodiments with reference to the accompanying drawings.

[0034] This disclosure may be described with reference to plan and / or cross-sectional views using the ideal schematic diagrams of this disclosure. Therefore, the example illustrations may be modified according to manufacturing techniques and / or tolerances.

[0035] Where there is no conflict, the various embodiments of this disclosure and the features thereof in the embodiments may be combined with each other.

[0036] The terminology used in this disclosure is for the purpose of describing particular embodiments only and is not intended to limit the disclosure. The term "and / or" as used in this disclosure includes any and all combinations of one or more of the associated enumerated entries. The singular forms "a" and "the" as used in this disclosure are also intended to include the plural forms, unless the context clearly indicates otherwise. The terms "comprising," "made of," etc., as used in this disclosure specify the presence of the stated feature, integral, step, operation, element, and / or component, but do not exclude the presence or addition of one or more other features, integrals, steps, operations, elements, components, and / or groups thereof.

[0037] Unless otherwise specified, all terms used in this disclosure (including technical and scientific terms) have the same meaning as commonly understood by one of ordinary skill in the art. It will also be understood that terms such as those defined in commonly used dictionaries should be interpreted as having a meaning consistent with their meaning in the context of the relevant art and this disclosure, and will not be interpreted as having an idealized or overly formal meaning, unless expressly so defined in this disclosure.

[0038] This disclosure is not limited to the embodiments shown in the accompanying drawings, but includes modifications to the configuration based on the manufacturing process. Therefore, the areas illustrated in the drawings are schematic, and the shapes of the areas shown illustrate specific shapes of the areas of an element, but are not intended to be limiting.

[0039] In some related technologies, interfaces (such as sockets) can be set in the printed circuit board (PCB) to connect to its internal leads. These interfaces are then connected to cable connectors (such as plugs), essentially connecting the leads inside the PCB to the external cable connected to the cable connector. This allows some signals to be transmitted outside the PCB, reducing signal loss and interference, improving signal stability, saving wiring space within the PCB, and reducing the number of layers and cost.

[0040] The cable connectors at both ends can be connected to different interfaces on the circuit board to enable signal transmission within the circuit board (i.e., single-board cabling). Alternatively, the cable can have only one connector connected to an interface on the circuit board to enable signal transmission between the circuit board and other external structures.

[0041] When installing cable connectors, a "flip-plate" method is usually used. That is, the side of the circuit board with the interface faces upward, and then each cable connector is connected to the corresponding interface. Then, a support plate (tray) is installed on the side of the cable connector away from the circuit board to provide support, thus obtaining the circuit board assembly.

[0042] With the development of technology, the number of cable connectors on circuit boards is increasing and the connection relationships are becoming more complex. As a result, during the installation of cable connectors, the cables connected to the connectors can easily come into contact with and interfere with the structure of the circuit board (such as the components on the surface of the circuit board), affecting the installation and even causing structural damage.

[0043] Firstly, referring to Figures 1 to 13 This disclosure provides a method for mounting circuit board assemblies.

[0044] The embodiments disclosed herein can be used to assemble circuit board 3, cable connector 2, and support plate 1 together to obtain circuit board assembly.

[0045] The cable connector 2 of this embodiment can be connected to the end of the cable 29 and can be connected to the interface 31 on the circuit board 3. It can be in the form of a plug or the like.

[0046] The circuit board 3 of this embodiment may be provided with leads and devices, and also with an interface 31 for connecting to the leads. The interface 31 may be in the form of a plug or the like. Therefore, when the interface 31 is connected to the cable connector 2, it is equivalent to realizing the connection between the cable 29 and the leads.

[0047] Reference Figure 4 In this embodiment of the present disclosure, the support plate 1 can be disposed on the side of the cable connector 2 away from the circuit board 3, and plays the role of fixing and supporting, also known as "tray".

[0048] The circuit board assembly of this disclosure can be used in communication equipment such as bearer networks, transmission networks, and fixed networks, for example, in routers and switches.

[0049] Reference Figure 1 The method for mounting circuit board assemblies according to embodiments of this disclosure may include:

[0050] S101. The cable connector 2 is placed on the support plate 1 and fixed relative to the support plate 1 by the connector positioning structure.

[0051] Among them, the cable connector 2 is used to connect to the interface 31 on the side opposite to the support plate 1.

[0052] S102. Press the side of the circuit board 3 with the interface 31 toward the side of the support plate 1 with the cable connector 2, so that the interface 31 is connected to the connection side of the cable connector 2.

[0053] Reference Figure 8 In this embodiment, each cable connector 2 to be connected can be first placed at a predetermined position on one side of the support plate 1 (the position corresponding to the interface 31 to be connected), and positioned relative to it by the connector positioning structure, and with reference to... Figure 9 Ensure that each cable connector 2 is used on the side of the connection interface 31 (connection side, such as...) Figure 9 The visible side of the cable connector 2 is exposed away from the support plate 1; subsequently, refer to... Figure 10 The side of the circuit board 3 with interface 31 is oriented towards the support plate 1 and pressed together to obtain a reference. Figure 13 The circuit board assembly, wherein each interface 31 of the circuit board 3 is connected to a corresponding cable connector 2.

[0054] It should be understood that the embodiments of this disclosure Figure 9 This is merely an illustrative representation that the connection side of cable connector 2 should be positioned away from the support plate 1, and does not represent the specific structure of the connection side. Figure 9 In the form of.

[0055] According to the embodiments of this disclosure, the cable connector 2 is first set on the support plate 1. After the cable connector 2 is positioned, the circuit board 3 is pressed down to connect the interface 31 to the cable connector 2. Therefore, during the process of setting the cable connector 2 in the embodiments of this disclosure, the cable 29 connected to the cable connector 2 cannot interfere with the structure in the circuit board 3, so as not to affect the installation or cause structural damage.

[0056] In some embodiments, the support plate 1 may be provided with a connector boss 11 at the position where the cable connector 2 is set.

[0057] Reference Figure 7 , Figure 10 As one embodiment of this disclosure, the support plate 1 may be provided with a connector boss 11 that protrudes from the surface relative to other positions at the position corresponding to each cable connector 2, so that the cable connector 2 is provided on the connector boss 11 and can be more tightly connected to the interface 31 on the circuit board 3.

[0058] In some embodiments, refer to Figure 2 The mounting of the cable connector 2 on the support plate 1 (S101) may include:

[0059] S101A. According to the preset alignment mark, the cable connector 2 is placed on the support plate 1 by the robot arm.

[0060] In some embodiments, refer to Figure 2 Pressing the side of the circuit board 3 with the interface 31 toward the side of the support plate 1 with the cable connector 2 (S102) may include:

[0061] S102A. According to the preset alignment mark, the side of the circuit board 3 with the interface 31 is pressed towards the side of the support plate 1 with the cable connector 2 by the robot arm.

[0062] As one embodiment of this disclosure, the process of placing the cable connector 2 on the support plate 1 and the process of pressing down the circuit board 3 can both be automatically achieved by a robotic arm. A pre-set alignment mark can be used as a guide for the robotic arm's operation. The specific form of the alignment mark varies in each step of the operation; for example, a connector positioning structure (e.g., the subsequent connector positioning post 49) can be used as the alignment mark.

[0063] In some related technologies, the installation of circuit board components is carried out manually, which results in low installation efficiency, high cost, and problems such as incorrect installation, omissions, and incomplete assembly, leading to low reliability.

[0064] The embodiments disclosed herein can automatically install circuit board components using a robotic arm, thereby greatly improving installation efficiency, significantly reducing costs, and eliminating problems such as incorrect installation, omissions, or incomplete assembly, resulting in high reliability.

[0065] In some embodiments, refer to Figure 2 Before the cable connector 2 is mounted on the support plate 1 (S101), the following may also be included:

[0066] S100. The support plate 1 is placed on the fixture 5 and fixed relative to the fixture 5 by the support plate positioning structure.

[0067] Among them, the support plate 1 is used to set the cable connector 2 on one side away from the fixture 5.

[0068] As one embodiment of this disclosure, reference is made to... Figure 3 A fixed fixture 5 (tooling) can be pre-set, so that it can be used as a reference. Figure 5 First, the support plate 1 is placed on the fixture 5 (tooling) and fixed by the support plate positioning structure to obtain a reference. Figure 6 The structure is such that cable connectors 2 are then installed on the support plate 1.

[0069] It should be understood that this step can also be automated by a robotic arm. For example, the robotic arm can use a joint positioning structure (such as the subsequent joint positioning post 49) as an alignment marker to place the support plate 1 on the fixture 5.

[0070] In some embodiments, the connector positioning structure may include: a connector positioning post 49 disposed on the fixture 5, a first connector positioning hole 41 disposed on the support plate 1, and a second connector positioning hole 42 disposed on the cable connector 2.

[0071] In some embodiments, mounting the support plate 1 on the fixture 5 (S101) may include:

[0072] S1011. Place the support plate 1 on the fixture 5 so that the connector positioning pin 49 passes through the first connector positioning hole 41.

[0073] In some embodiments, arranging the cable connector 2 on the support plate 1 (S102) may include:

[0074] S1021. The cable connector 2 is placed on the support plate 1, so that the connector positioning post 49 passing through the first connector positioning hole 41 passes through the second connector positioning hole 42.

[0075] As one embodiment of this disclosure, reference is made to... Figures 3 to 5 , Figure 8 The connector positioning structure may include a connector positioning post 49 on the fixture 5, and a first connector positioning hole 41 and a second connector positioning hole 42 respectively on the support plate 1 and the cable connector 2.

[0076] Accordingly, refer to Figure 5 , Figure 6 When the support plate 1 is set, the connector positioning pin 49 will pass through the first connector positioning hole 41, and refer to Figure 8 , Figure 9 When setting up cable connector 2, connector positioning post 49 will continue to pass through the second connector positioning hole 42. Thus, connector positioning post 49 effectively passes through "two layers of structure (support plate 1 and cable connector 2)," achieving "integrated" positioning and installation. For example, during the process of setting up support plate 1 and cable connector 2 using a robotic arm, connector positioning post 49 can be used as an alignment mark, thereby achieving "blind assembly" of the circuit board assembly.

[0077] It should be understood that the connector positioning structure is not limited to the above forms. For example, the connector positioning structure may also include a positioning post provided on the support plate 1, which inserts into the positioning hole inside the cable connector 2.

[0078] It should be understood that since the connector positioning pin 49 passes through the first connector positioning hole 41, they can also play a role in fixing the support plate 1 relative to the fixture 5 to a certain extent. That is, the connector positioning pin 49 and the first connector positioning hole 41 can also play the role of the support plate positioning structure.

[0079] It should be understood that, for better positioning of the support plate 1, the support plate positioning structure can also be a different structure from the aforementioned joint positioning post 49 and first joint positioning hole 41. For example, refer to... Figure 3 , Figure 4 The support plate positioning structure may include a separate support plate positioning post 69 disposed on the fixture 5, and a separate support plate positioning hole 61 disposed in the support plate 1, as shown in the figure. Figures 6 to 8 The support plate positioning post 69 passes only through the support plate positioning hole 61 and not through the positioning port in the cable connector 2, thus it is used "only" for the relative positioning of the fixture 5 and the support plate 1.

[0080] In some embodiments, the circuit board 3 may be provided with a third connector positioning hole 43 corresponding to the second connector positioning hole 42.

[0081] In some embodiments, after pressing the side of the circuit board 3 with the interface 31 toward the side of the support plate 1 with the cable connector 2 (S102), the following may also be included:

[0082] S103. Pass the fixing bolt 79 through the third connector positioning hole 43 and the second connector positioning hole 42 to connect the circuit board 3 to the cable connector 2.

[0083] As one embodiment of this disclosure, reference is made to... Figure 11 , Figure 12 The circuit board 3 may also have a third connector positioning hole 43 at the position corresponding to the second connector positioning hole 42. After connecting the circuit board 3, the fixing bolt 79 can be passed through the third connector positioning hole 43 and the second connector positioning hole 42 in sequence to connect the circuit board 3 and the cable connector 2 together, so as to ensure the positioning of each structure in the circuit board assembly product.

[0084] In some embodiments, the cable connector 2 may be provided with a first bolt hole 71, and the circuit board 3 may also be provided with a second bolt hole 72 corresponding to the first bolt hole 71.

[0085] In some embodiments, refer to Figure 2 The method for allowing the fixing bolt 79 to pass through the third connector positioning hole 43 and the second connector positioning hole 42 (S103) may include:

[0086] S1031, make the fixing bolt 79 pass through the second bolt hole 72 and the first bolt hole 71.

[0087] S1032. Remove the support plate 1 from the fixture 5 so that the fixing bolt 79 passes through the third connector positioning hole 43 and the second connector positioning hole 42.

[0088] As one embodiment of this disclosure, reference is made to... Figure 8 , Figure 10 The cable connector 2 and the circuit board 3 may also be provided with corresponding second bolt holes 72 and first bolt holes 71, respectively, and refer to Figure 11 No joint positioning pins are provided in the second bolt hole 72 and the first bolt hole 71. Therefore, referring to... Figure 11 While the support plate 1 is still mounted on the fixture 5, fixing bolts 79 can be added to the second bolt hole 72 and the first bolt hole 71 to achieve initial fixing of the cable connector 2; afterwards, refer to Figure 12Remove the support plate 1 from the fixture 5, so that the connector positioning pin 49 can be "dislodged" from the second connector positioning hole 42. Therefore, the fixing bolts 79 can be added to the third connector positioning hole 43 and the second connector positioning hole 42.

[0089] It should be understood that the specific arrangement of the second connector positioning hole 42 (third connector positioning hole 43) and the first bolt hole 71 (second bolt hole 72) is varied. For example, refer to... Figure 7 , Figure 9 Each cable connector 2 has four positioning holes at its four corners. Two of the positioning holes on one diagonal are the second connector positioning holes 42 (and there is also a third connector positioning hole 43), while the two positioning holes on the other diagonal are the first bolt holes 71 (and there is also a second bolt hole 72).

[0090] It should be understood, with reference Figure 7 , Figure 11 At the position corresponding to the first bolt hole 71, the support plate 1 may also be provided with a positioning hole, and the fixture 5 is provided with a positioning post that passes through the positioning hole. Since the positioning post only passes through the positioning hole on the support plate 1, the positioning post also belongs to the support plate positioning post 69, and the positioning hole also belongs to the support plate positioning hole 61.

[0091] It should be understood that this step can also be automated by a robotic arm. For example, the robotic arm can use the third connector positioning hole 43, the second bolt hole 72, etc., as alignment marks to automatically set the fixing bolt 79.

[0092] In some embodiments, refer to Figure 2 Between the placement of the cable connector 2 on the support plate 1 (S101) and the pressing of the side of the circuit board 3 with the interface 31 toward the side of the support plate 1 with the cable connector 2 (S102), the following may also be included:

[0093] S1012. Organize the cable 29 connected to the cable connector 2.

[0094] Reference Figure 9 After the cable connector 2 is placed on the support plate 1, the cable 29 connected to it is also located on the support plate 1. This allows for cable management, that is, the cable 29 is organized to the predetermined position on the support plate 1 to avoid the cable 29 from piling up or getting tangled. This minimizes unnecessary contact between the cable 29 and the circuit board 3 during the subsequent pressing process of the circuit board 3.

[0095] In some embodiments, the support plate 1 may have a cable mark on one side for mounting the cable connector 2.

[0096] In some embodiments, cable management (S1012) of the cable connector 2 connected to the cable 29 may include:

[0097] S10121. Arrange cable 29 to the position corresponding to the cable mark.

[0098] As one embodiment of this disclosure, the support plate 1 may have a cable mark pre-installed on one side where the cable connector 2 is located, that is, a mark used to identify the distribution trajectory of the cable 29. For example, the cable mark may be in the form of "silk screen printing", so that when the cable 29 is being managed, the cable 29 can be arranged to be distributed along the cable mark.

[0099] It should be understood that, in order to better secure the position of the cable 29, it can also be glued to the predetermined position of the support plate 1 using double-sided tape or the like, which will not be described in detail here.

[0100] It should be understood that this step can also be automated by a robotic arm. For example, the robotic arm can use the cable markers as alignment marks to organize the cables 29.

[0101] It should be understood that the fixture 5, support plate 1, cable connector 2, circuit board 3, etc. in the embodiments of this disclosure may include other structures, such as structures for support, structures for spacing, structures for positioning / connection with other devices, etc., which will not be described in detail here.

[0102] Secondly, referring to Figures 3 to 13 This disclosure provides a circuit board assembly that may include:

[0103] Support plate 1;

[0104] A cable connector 2 is located on one side of the support plate 1. The connection side of the cable connector 2, which is used to connect to the interface 31, is opposite to the support plate 1.

[0105] A circuit board 3 is located on the side of the cable connector 2 away from the support plate 1. The side of the circuit board 3 facing the support plate 1 is provided with an interface 31, which is connected to the connection side of the cable connector 2.

[0106] The circuit board assembly may also include:

[0107] The connector positioning structure is used to fix the cable connector 2 relative to the support plate 1.

[0108] The circuit board assembly of this disclosure embodiment is obtained by assembling the circuit board assembly using the above-described circuit board assembly mounting method, therefore refer to Figure 13 This includes the connector positioning structure (such as the first connector positioning hole 41, the second connector positioning hole 42, and the third connector positioning hole 43 in the integrated positioning above).

[0109] It should be understood, with reference Figure 13The circuit board assembly of this embodiment may also include other structures such as the first bolt hole 71, the second bolt hole 72, and the fixing bolt 79.

[0110] It should be understood, with reference Figure 13 The fixture 5 mentioned above is a device used in the process of assembly of circuit board components, but the circuit board component product does not include fixtures (nor does it include connector positioning posts).

[0111] This disclosure has disclosed exemplary embodiments, and although specific terminology has been used, it is for general illustrative purposes only and should not be construed as limiting. In some instances, it will be apparent to those skilled in the art that features, characteristics, and / or elements described in conjunction with particular embodiments may be used alone, or in combination with features, characteristics, and / or elements described in conjunction with other embodiments, unless otherwise expressly indicated. Therefore, those skilled in the art will understand that various changes in form and detail may be made without departing from the scope of this disclosure as set forth by the appended claims.

Claims

1. A method for mounting a circuit board assembly, comprising: A cable connector is mounted on a support plate and fixed relative to the support plate by a connector positioning structure; wherein, the connection side of the cable connector used for connecting to the interface is away from the support plate; Press the side of the circuit board with the interface toward the side of the support plate with the cable connector, so that the interface is connected to the connection side of the cable connector.

2. The method according to claim 1, wherein, The step of setting the cable connector on the support plate includes: setting the cable connector on the support plate by a robotic arm according to a preset alignment mark; The step of pressing the side of the circuit board with the interface toward the side of the support plate with the cable connector includes: pressing the side of the circuit board with the interface toward the side of the support plate with the cable connector using a robotic arm according to a preset alignment mark.

3. The method according to claim 1 or 2, wherein, Before the cable connector is positioned on the support plate, the following is also included: The support plate is placed on the fixture and fixed relative to the fixture by the support plate positioning structure; wherein, the side of the support plate used to set the cable connector is opposite to the fixture.

4. The method according to claim 3, wherein, The connector positioning structure includes: a connector positioning post disposed on the fixture, a first connector positioning hole disposed on the support plate, and a second connector positioning hole disposed on the cable connector; The step of setting the support plate on the fixture includes: setting the support plate on the fixture such that the connector positioning post passes through the first connector positioning hole; The step of setting the cable connector on the support plate includes: setting the cable connector on the support plate such that the connector positioning post passing through the first connector positioning hole passes through the second connector positioning hole.

5. The method according to claim 4, wherein, The circuit board is also provided with a third connector positioning hole corresponding to the second connector positioning hole; after pressing the side of the circuit board with the interface toward the side of the support plate with the cable connector, the method further includes: The circuit board is connected to the cable connector by passing the fixing bolt through the third connector positioning hole and the second connector positioning hole.

6. The method according to claim 5, wherein, The cable connector is provided with a first bolt hole, and the circuit board is also provided with a second bolt hole corresponding to the first bolt hole; The step of allowing the fixing bolt to pass through the third connector positioning hole and the second connector positioning hole includes: The fixing bolt passes through the second bolt hole and the first bolt hole; Remove the support plate from the fixture and allow the fixing bolt to pass through the third connector positioning hole and the second connector positioning hole.

7. The method according to claim 1 or 2, wherein, Between the placement of the cable connector on the support plate and the pressing of the side of the circuit board with the interface toward the side of the support plate with the cable connector, the method further includes: Organize the cables connected to the cable connector.

8. The method according to claim 7, wherein, The support plate has a cable mark on one side for setting the cable connector; The cable management process for the cable connector includes: arranging the cable to the position corresponding to the cable marking.

9. The method according to claim 1 or 2, wherein, The support plate, which is used to set the position of the cable connector, is provided with a connector boss.

10. A circuit board assembly comprising: Support plate; A cable connector is provided on one side of the support plate, and the connection side of the cable connector for connecting to the interface is opposite to the support plate. A circuit board is provided on the side of the cable connector away from the support plate, and the interface is provided on the side of the circuit board facing the support plate. The interface is connected to the connection side of the cable connector. The circuit board assembly further includes: A connector positioning structure is provided for fixing the cable connector relative to the support plate.

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