PCB connection structure

Abstract

The utility model discloses a PCB connecting structure, and relates to the technical field of PCB connecting parts. The PCB connecting structure comprises a connecting column and a first positioning column. A first threaded hole is formed in the first end face of the first end of the connecting column in the axial direction. The first positioning column is connected to the connecting column and provided with a first positioning protrusion axially protruding out of the first end face. The relative positions of the first positioning protrusion and the connecting column in the circumferential direction are adjustable, and circumferential limiting can be formed after adjustment. When the PCB is connected, the position relation between the first positioning protrusion and the connecting column in the circumferential direction can be adjusted firstly, the first positioning protrusion cannot rotate relative to the connecting column any more, the first positioning protrusion is connected with a corresponding through hole in the PCB in an inserted mode, and after the PCB is connected with the connecting column through a screw, the possibility of loosening of the threaded connection position can be reduced or avoided. Therefore, the PCB can be connected more reliably. In addition, due to the fact that the limiting position between the first positioning protrusion and the connecting column in the circumferential direction is adjustable, the applicability can be improved.

Description

Technical Field

[0001] The utility model relates to the technical field of PCB connection components, and particularly relates to a PCB connection structure. Background Art

[0002] In existing PCBs (Printed Circuit Boards), many use hexagonal studs as connection structures. Screws are connected to the hexagonal studs, and then other PCBs or specific positions are connected through the hexagonal studs. However, the hexagonal studs can rotate relative to the PCB, which may cause loosening at the threaded connection, affecting the reliability and stability of the connection.

[0003] Therefore, how to more reliably connect a PCB to a corresponding connection structure is a technical problem that needs to be solved by those skilled in the art currently. Summary of the Utility Model

[0004] In view of this, the purpose of the utility model is to provide a PCB connection structure, which can more reliably connect a PCB.

[0005] To achieve the above purpose, the utility model provides the following technical solutions:

[0006] A PCB connection structure includes a connection column and a first positioning column; a first threaded hole is opened on the first end face of the first end of the connection column in the axial direction; the first positioning column is connected to the connection column, and the first positioning column has a first positioning protrusion protruding axially from the first end face; the relative positions of the first positioning protrusion and the connection column in the circumferential direction are adjustable, and circumferential limitation can be formed after adjustment.

[0007] Preferably, the first positioning column includes a first mounting sleeve, a partial structure of the connection column in the axial direction is a first mounting column, and the first mounting sleeve is sleeved on the first mounting column; a first rotation-limiting structure is arranged between the first mounting sleeve and the first mounting column to form circumferential limitation.

[0008] Preferably, the connection column has a first shoulder, and the first mounting column is located between the first end face and the first shoulder; the first mounting sleeve can be axially mounted on the first mounting column from one side of the first end face and can move to abut against the first shoulder.

[0009] Preferably, the first rotation-limiting structure includes a threaded structure arranged between the inner circumferential surface of the first mounting sleeve and the outer circumferential surface of the first mounting column.

[0010] Preferably, the first rotation-limiting structure includes a plurality of rotation-limiting grooves arranged in sequence along the circumferential direction on one of the inner circumferential surface of the first mounting sleeve and the outer circumferential surface of the first mounting post, and a rotation-limiting protrusion arranged on the other; the rotation-limiting protrusion can cooperate with different rotation-limiting grooves to adjust the relative position of the first positioning post and the connecting post in the circumferential direction.

[0011] Preferably, a first cantilever protrudes radially from the outer circumferential surface of the first mounting sleeve, and the first positioning post is arranged on an end surface of the first cantilever in the axial direction.

[0012] Preferably, it further includes a second positioning post connected to the connecting post; a second threaded hole is opened on a second end surface at the second end of the connecting post in the axial direction, and the second positioning post has a second positioning protrusion axially protruding from the second end surface; the second positioning protrusion and the connecting post form circumferential limitation.

[0013] Preferably, the second positioning post includes a second mounting sleeve, a partial structure of the connecting post in the axial direction is a second mounting post, and the second mounting sleeve is sleeved on the second mounting post; a second rotation-limiting structure is arranged between the second mounting sleeve and the second mounting post for circumferential limitation.

[0014] Preferably, the connecting post has a second shoulder, and the second mounting post is located between the second end surface and the second shoulder; the second mounting sleeve can be axially mounted on the second mounting post from one side of the second end surface and can axially move to abut against the second shoulder.

[0015] Preferably, the second rotation-limiting structure includes an inner rotation-limiting plane arranged on the inner circumferential surface of the second mounting sleeve and an outer rotation-limiting plane arranged on the outer circumferential surface of the second mounting post; the inner rotation-limiting plane and the outer rotation-limiting plane are fitted together for circumferential limitation.

[0016] The PCB connection structure provided by the present invention includes a connecting post and a first positioning post; a first threaded hole is opened on a first end surface at the first end of the connecting post in the axial direction; the first positioning post is connected to the connecting post, and the first positioning post has a first positioning protrusion axially protruding from the first end surface; the relative position of the first positioning protrusion and the connecting post in the circumferential direction is adjustable and can form circumferential limitation after adjustment.

[0017] When connecting to the PCB, the circumferential positional relationship between the first positioning protrusion and the connecting post can be adjusted first and locked. In the locked state, circumferential limit can be formed. At this time, the first positioning protrusion will no longer rotate relative to the connecting post. Then, the first positioning protrusion is inserted into the corresponding through hole on the PCB, and the first end face is abutted against the PCB axially. Moreover, the PCB is connected to the first threaded hole by screws. Through the rotation-limiting ability of the first positioning protrusion, the rotation of the PCB connection structure relative to the PCB can be avoided, reducing or avoiding the possibility of loosening at the threaded connection, thus connecting the PCB more reliably. In addition, since the circumferentially limited position between the first positioning protrusion and the connecting post is adjustable, when the angle of the connecting post relative to the PCB installation is determined, the first positioning protrusion can be adjusted according to the actual situation to match the through holes at different positions on the PCB, improving the applicability of the PCB connection structure. Description of the Drawings

[0018] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the drawings in the following description are only the embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained according to the provided drawings.

[0019] Figure 1 It is the assembly drawing of the first specific embodiment of the PCB connection structure provided by the present invention. The dashed line with an arrow indicates the circumferential direction, and the solid line with an arrow indicates the axial direction;

[0020] Figure 2 It is the exploded view of the first specific embodiment of the PCB connection structure provided by the present invention. The dashed line with an arrow indicates the circumferential direction, and the solid line with an arrow indicates the axial direction;

[0021] Figure 3 It is the sectional view of the first specific embodiment of the PCB connection structure provided by the present invention;

[0022] Figure 4 It is the front view of the first specific embodiment of the PCB connection structure provided by the present invention after connecting the second PCB;

[0023] Figure 5 It is Figure 4 the front view after connecting the second fastening screw;

[0024] Figure 6 It is Figure 5 the front view after connecting the first PCB;

[0025] Figure 7 It is Figure 6 the front view after connecting the first fastening screw;

[0026] Figure 8 Explosion view of the second specific embodiment of the PCB connection structure provided by the present utility model. The solid line with an arrow indicates the axial direction.

[0027] Reference numerals:

[0028] The first fastening screw 1;

[0029] The second fastening screw 2;

[0030] The first PCB 3;

[0031] The second PCB 4;

[0032] The first positioning post 5, the first positioning protrusion 51, the first mounting sleeve 52, the rotation limiting protrusion 521, the first cantilever 53;

[0033] The second positioning post 6, the second positioning protrusion 61, the second mounting sleeve 62, the inner rotation limiting plane 621, the second cantilever 63;

[0034] The connecting post 7, the first threaded hole 71, the first end face 72, the second threaded hole 73, the second end face 74, the first shoulder 75, the second shoulder 76, the first mounting post 77, the rotation limiting groove 771, the second mounting post 78, the outer rotation limiting plane 781, the main body 79. Specific implementation mode

[0035] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0036] The core of the present utility model is to provide a PCB connection structure, which can connect the PCB more reliably.

[0037] For the first specific embodiment of the PCB connection structure provided by the present utility model, please refer to Figures 1 to 7 , which includes a connecting post 7 and a first positioning post 5.

[0038] As Figures 1 to 3 shown, a first threaded hole 71 is opened on the first end face 72 at the first end of the connecting post 7 in the axial direction. The first positioning post 5 is connected to the connecting post 7, and the first positioning post 5 has a first positioning protrusion 51 axially protruding from the first end face 72. The relative positions of the first positioning protrusion 51 and the connecting post 7 in the circumferential direction are adjustable and can form circumferential limitation after adjustment. Among them, the first positioning post 5 can be provided with only one first positioning protrusion 51, and multiple first positioning protrusions 51 can also be provided in other embodiments.

[0039] Here, it should be noted that in this application, the two ends in the extending direction of the connecting column 7 are respectively the first end and the second end. Taking a set straight line along the extending direction of the connecting column 7 as the reference axis O, unless otherwise specified, the axial direction, circumferential direction, and radial direction are all based on the reference axis O of the connecting column 7. Among them, the axial direction is the direction parallel to or coinciding with the reference axis O, the radial direction is the direction perpendicular to the reference axis O and passing through the reference axis O, and the circumferential direction is the circumferential direction around the reference axis O. In addition, the position of the structure is adjusted circumferentially relative to the connecting column 7, specifically, it can be rotated by a certain angle around the reference axis O. When the connecting column 7 includes a cylindrical structure in its extending direction, the reference axis O can also be the center line of the cylindrical structure.

[0040] When connecting to the first PCB 3, the circumferential positional relationship between the first positioning protrusion 51 and the connecting column 7 can be adjusted first. After adjustment, circumferential limiting can be formed. At this time, the first positioning protrusion 51 will no longer rotate relative to the connecting column 7. Then, the first end face 72 and the first PCB 3 are axially abutted together, and the first positioning protrusion 51 is inserted into the corresponding through hole on the first PCB 3, which can prevent the PCB connection structure from rotating relative to the first PCB 3 and reduce or avoid the possibility of loosening at the threaded connection, thereby connecting the PCB more reliably. In addition, since the circumferential limiting position between the first positioning protrusion 51 and the connecting column 7 is adjustable, when the installation angle of the connecting column 7 relative to the first PCB 3 is determined, the first positioning protrusion 51 can be adjusted according to the actual situation to match the through holes at different positions on the first PCB 3, improving the applicability of the PCB connection structure.

[0041] Regarding the structure of the first positioning post 5, as Figure 2 shown, the first positioning post 5 includes a first mounting sleeve 52. A partial structure of the connecting column 7 in the axial direction is a first mounting post 77. The first mounting sleeve 52 is sleeved on the first mounting post 77, which is convenient for assembly and has good connection stability. A first rotation-limiting structure is provided between the first mounting sleeve 52 and the first mounting post 77 to form circumferential limiting, so that the first positioning protrusion 51 and the connecting column 7 form circumferential limiting.

[0042] Of course, in other embodiments, the first positioning post 5 can also be directly inserted radially on the outer peripheral surface of the connecting column 7 to achieve the connection and circumferential limiting of the first positioning protrusion 51, the first positioning post 5, and the connecting column 7. Among them, the outer peripheral surface of the connecting column 7 specifically refers to its outer surface around the reference axis O.

[0043] Among them, to improve the rotation-limiting ability of the first positioning post 5 for the PCB, as Figure 2As shown, the connecting column 7 has a first shoulder 75, and the first mounting post 77 is located between the first end face 72 and the first shoulder 75. The first mounting sleeve 52 can be axially mounted on the first mounting post 77 from one side of the first end face 72. Specifically, the first mounting sleeve 52 can be detachably mounted on the first mounting post 77 and the connecting column 7, and the first mounting sleeve 52 can move to abut against the first shoulder 75, specifically, it can move at most to abut against the first shoulder 75.

[0044] By the limitation of the first shoulder 75, the distance that the first positioning protrusion 51 axially moves away from the first PCB 3 can be limited, effectively preventing the first positioning protrusion 51 from axially disengaging from the corresponding through hole on the first PCB 3. In addition, detachably mounting the first mounting sleeve 52 on the first mounting post 77 facilitates installation at a suitable angle.

[0045] Of course, in other embodiments, the first mounting sleeve 52 can also be non-detachably connected to the first mounting post 77. In this case, circumferential limitation and angle adjustment can be achieved through the frictional force between the first mounting sleeve 52 and the first mounting post 77.

[0046] Among them, for the first rotation-limiting structure, as Figure 2 and Figure 3 shown, it includes a threaded structure provided between the inner peripheral surface of the first mounting sleeve 52 and the outer peripheral surface of the first mounting post 77 to form threaded rotation positioning. Specifically, an internal thread is provided on the inner peripheral surface of the first mounting sleeve 52, and an external thread is provided on the outer peripheral surface of the first mounting post 77, and the two can be threadedly engaged. Among them, the inner peripheral surface of the first mounting sleeve 52 can specifically refer to the surface around the reference axis O on its inner hole, specifically the hole wall, and the outer peripheral surface of the first mounting post 77 can specifically refer to its outer surface around the reference axis O.

[0047] Limiting the circumferential direction by setting a threaded structure is convenient for processing, and stepless adjustment of the angle of the first positioning protrusion 51 relative to the connecting column 7 can be achieved. The first positioning protrusion 51 can be locked at any angle within 360° in the circumferential direction of the connecting column 7, and the first positioning post 5 can be adjusted according to the requirements of multiple scenarios, which is beneficial to meeting the precise positioning requirements for the first PCB 3.

[0048] It should be noted that when the first positioning protrusion 51 is limited to different positions in the circumferential direction relative to the connecting column 7, it may also be in different positions axially relative to the connecting column 7. In addition, when the first mounting sleeve 52 is at any angle relative to the first mounting post 77, there is a certain locking force between the two, which can specifically be provided by frictional force to maintain circumferential limitation, so that the first mounting sleeve 52 cannot move freely relative to the first mounting post 77.

[0049] Among them, for the positional relationship between the first positioning protrusion 51 and the first mounting sleeve 52, asFigure 1 and Figure 2 As shown in Figure 2 , a first cantilever 53 is radially protruded on the outer peripheral surface of the first mounting sleeve 52, and the two are specifically fixedly connected. The first positioning post 5 is disposed on one end surface of the first cantilever 53 in the axial direction, and the two are specifically fixedly connected, or the first positioning post 5 is rotatably connected to the first cantilever 53. By adding the first cantilever 53, the radial distance between the first positioning protrusion 51 and the connecting post 7 can be defined as needed. The outer peripheral surface of the first mounting sleeve 52 may specifically refer to its outer surface around the reference axis O.

[0050] Specifically, the first positioning protrusion 51, the first cantilever 53, and the first mounting sleeve 52 may be fixedly connected. For example, the first positioning post 5 may be an integrally formed structure. Or, the first positioning protrusion 51 may be an axially telescopic structure to ensure axial insertion with the first PCB 3, and the first cantilever 53 may also be set as a radially telescopic structure to be adapted to more through holes on the first PCB 3. Or, a plurality of jacks may be provided on the first cantilever 53, which may be specifically arranged radially, and the first positioning protrusion 51 may be switchably inserted into different jacks to be adapted to the through holes at different positions on the first PCB 3. In addition, in other embodiments, the first positioning protrusion 51 may also be disposed on an axial end surface of the first mounting sleeve 52.

[0051] In addition, the first rotation-limiting structure may also be otherwise arranged. In another embodiment, as Figure 8 shown, the first rotation-limiting structure includes a plurality of rotation-limiting grooves 771 arranged in sequence along the circumferential direction on the outer peripheral surface of the first mounting post 77, and a rotation-limiting protrusion 521 arranged on the inner peripheral surface of the first mounting sleeve 52, forming a dot rotation positioning. The rotation-limiting protrusion 521 can be inserted radially in cooperation with different rotation-limiting grooves 771 to adjust the relative position of the first positioning post 5 and the connecting post 7 in the circumferential direction, and the reliability of the circumferential limit between the first positioning protrusion and the connecting post 7 can be ensured.

[0052] Among them, the plurality of rotation-limiting grooves 771 may be evenly arranged in the circumferential direction on the outer peripheral surface of the first mounting post 77. For example, the adjacent rotation-limiting grooves 771 are spaced 20°. In addition, the outer peripheral surface of the first mounting post 77 may be knurled. In addition, on the inner peripheral surface of the first mounting sleeve 52, only one rotation-limiting protrusion 521 may be provided, and multiple rotation-limiting protrusions 521 may also be provided to ensure the rotation-limiting effect, usually as long as the number is not more than that of the rotation-limiting grooves 771. When the first positioning protrusion 51 is locked to each circumferential relative position with respect to the connecting post 7, each rotation-limiting protrusion 521 is replaced to be inserted in cooperation with a different rotation-limiting groove 771.

[0053] Among them, when adjusting the angle of the first positioning protrusion 51, in this embodiment, the first mounting sleeve 52 can be removed from the connecting column 7 each time. After selecting the relative angle between the rotation-limiting groove 771 and the rotation-limiting protrusion 521, the first mounting sleeve 52 is then installed on the connecting column 7, thereby achieving circumferential limiting and locking. In other embodiments, the rotation-limiting protrusion 521 can also be set as an elastic member, and the angle adjustment can be achieved by directly rotating the first mounting sleeve 52 on the connecting column 7.

[0054] Of course, in other embodiments, the above-mentioned rotation-limiting protrusion 521 can also be provided on the first mounting post 77, and the above-mentioned rotation-limiting groove 771 can be provided on the first mounting sleeve 52.

[0055] To achieve connection with another PCB (specifically the second PCB 4), the PCB connection structure in this embodiment further includes a second positioning post 6, and the second positioning post 6 is connected to the connecting column 7. As Figures 1 to 3 shown, a second threaded hole 73 is provided in the second end face 74 at the second end of the connecting column 7 in the axial direction, and the second positioning post 6 has a second positioning protrusion 61 axially protruding from the second end face 74. The second positioning protrusion 61 and the connecting column 7 form circumferential limiting in the circumferential direction, so as to effectively limit the relative rotation between the connecting column 7 and the second PCB 4.

[0056] Since circumferential limiting is formed between the second positioning protrusion 61 and the connecting column 7, the second positioning protrusion 61 will not rotate relative to the connecting column 7. During assembly, the second end face 74 and the second PCB 4 are axially abutted together, and the second positioning protrusion 61 and the corresponding through hole on the second PCB 4 are inserted, which can prevent the PCB connection structure from rotating relative to the second PCB 4, reduce or avoid the possibility of loosening at the threaded connection, and thus connect the PCB more reliably.

[0057] Regarding the structure of the second positioning post 6, it includes a second mounting sleeve 62. A partial structure of the connecting column 7 in the axial direction is a second mounting post 78, and the second mounting sleeve 62 is sleeved on the second mounting post 78, which is convenient for assembly and has good connection stability. A second rotation-limiting structure is provided between the second mounting sleeve 62 and the second mounting post 78 for circumferential limiting. At the same time, the second positioning protrusion 61 and the connecting column 7 form circumferential limiting and cannot rotate relative to each other.

[0058] Of course, in other embodiments, the second positioning post 6 can also be directly radially inserted into the outer peripheral surface of the connecting column 7 to achieve the connection and circumferential limiting of the second positioning protrusion 61, the second positioning post 6 and the connecting column 7. Among them, the outer peripheral surface of the second positioning post 6 can specifically refer to its outer surface around the reference axis O.

[0059] At the same time, to improve the rotation-limiting ability of the second positioning post 6 to the PCB, as Figure 2As shown, the connecting column 7 has a second shoulder 76, and the second mounting post 78 is located between the second end face 74 and the second shoulder 76. The second mounting sleeve 62 can be axially mounted on the second mounting post 78 from one side of the second end face 74, and the second mounting sleeve 62 can axially move until it abuts against the second shoulder 76, specifically, it can move at most until it abuts against the second shoulder 76. In addition, the main body 79 of the connecting column 7 can be axially located between the first shoulder 75 and the second shoulder 76.

[0060] By the limitation of the second shoulder 76, the distance that the second positioning protrusion 61 axially moves away from the second PCB 4 can be limited, effectively preventing the second positioning protrusion 61 from axially disengaging from the corresponding through hole on the second PCB 4.

[0061] Specifically, the second mounting sleeve 62 is detachably mounted on the second mounting post 78, specifically detachably connected to the connecting column 7, and the second mounting sleeve 62 and the second mounting post 78 can also be in interference fit. Of course, in other embodiments, the second mounting sleeve 62 can also be non-detachably connected to the second mounting post 78 by means such as bonding.

[0062] In addition, a second cantilever 63 protrudes radially from the outer peripheral surface of the second mounting sleeve 62, and the two are specifically fixedly connected. The second positioning post 6 protrudes from one end face of the second cantilever 63 in the axial direction, and the two are specifically fixedly connected, or the second positioning post 6 is rotatably connected to the second cantilever 63. Among them, multiple second cantilevers 63 can be provided, for example, two, which are respectively fixedly arranged on the outer peripheral surface of the second mounting sleeve 62 in sequence along the circumferential direction, and each second cantilever 63 is provided with a second positioning protrusion 61. Among them, the outer peripheral surface of the second mounting sleeve 62 can specifically refer to its outer surface around the reference axis O.

[0063] By adding the second cantilever 63, the radial distance between the second positioning protrusion 61 and the connecting column 7 can be limited as needed. Among them, the second positioning protrusion 61, the second cantilever 63, and the second mounting sleeve 62 can be fixedly connected. For example, the second positioning post 6 can be an integrally formed structure. In addition, the second positioning protrusion 61 can be an axially telescopic structure to ensure that it can be axially inserted into the second PCB 4, and the second cantilever 63 can also be set as a radially telescopic structure to be adapted to more through holes on the second PCB 4. Or, a plurality of jacks can be provided on the second cantilever 63, specifically arranged radially, and the second positioning protrusion 61 can be selectively inserted into different jacks to be adapted to the through holes at different positions on the second PCB 4. Of course, in other embodiments, the second positioning protrusion 61 can also be provided on an axial end face of the second mounting sleeve 62.

[0064] For the second rotation-limiting structure, such as Figure 2As shown, the second rotation-limiting structure includes an inner rotation-limiting plane 621 provided on the inner peripheral surface of the second mounting sleeve 62, and an outer rotation-limiting plane 781 provided on the outer peripheral surface of the second mounting post 78. The inner rotation-limiting plane 621 and the outer rotation-limiting plane 781 are fitted together for circumferential positioning. At this time, there can be only one relative position in the circumferential direction between the second positioning protrusion 61 and the connecting post 7, and the relative positions where they can be limited in the circumferential direction are not adjustable. Then, when the first PCB 3 and the second PCB 4 are connected through this PCB connection structure, the second end of the connecting post 7 can be first connected to the second positioning protrusion 61 of the second PCB 4. At this time, the circumferential position of the connecting post 7 is determined. Since there is adjustability between the first positioning protrusion 51 and the connecting post 7, the first positioning protrusion 51 can be adjusted adaptively according to the angular requirements of the first PCB 3 and the second PCB 4 and the available through-hole positions of the first PCB 3, and then the connection between the first positioning protrusion 51, the connecting post 7 and the first PCB 3 can be made. Among them, the inner peripheral surface of the second mounting sleeve 62 can specifically refer to the surface on its inner hole around the reference axis O, specifically the hole wall, and the outer peripheral surface of the second mounting post 78 can specifically refer to its outer surface around the reference axis O.

[0065] Specifically, one or more second positioning protrusions 61 can be provided. In addition, one or more inner rotation-limiting planes 621 and outer rotation-limiting planes 781 can be provided circumferentially.

[0066] Specifically, the second positioning post 6 can be formed by milling a plane on a cylinder to serve as the outer rotation-limiting plane 781. The axis line of the second positioning post 6 can be collinear with the axis line of the connecting post 7. Or, the second positioning post 6 can be a prism structure, such as a rectangular body. At this time, each plane of the prism structure is the outer rotation-limiting plane 781 on the second positioning post 6. The first positioning post 5 can also include a cylinder.

[0067] Specifically, the first positioning post 5 and the second positioning post 6 are insulating structures, and the connecting post 7 is a conductive structure. Specifically, the connecting post 7 can be made of red copper, which can pass a large current and has a large current-carrying capacity.

[0068] The PCB connection structure in this embodiment can be applied to the connection of PCBs in fields such as vehicle-mounted power supplies, motor control, industrial power supplies, military enterprises, and medical power supplies. As Figures 4 to 7 shown, the assembly process includes: as Figure 4 shown, the connecting post 7 is installed on the second PCB 4, and the second positioning protrusion 61 is inserted into the selected through-hole on the second PCB 4; as Figure 5 shown, the second fastening screw 2 is tightened into the second threaded hole 73 to clamp and fix the second PCB 4 through the second fastening screw 2 and the second end face 74; the relative angle between the first positioning protrusion 51 and the connecting post 7 is adjusted to form circumferential positioning; as Figure 6As shown, the first PCB 3 is installed on the connecting post 7, and the first positioning protrusion 51 is inserted into the selected through hole on the first PCB 3; as Figure 7 shown, tighten the first fastening screw 1 into the first threaded hole 71 to clamp and fix the first PCB 3 through the first fastening screw 1 and the first end face 72, completing the assembly.

[0069] It should be noted that when an element is referred to as "fixing" another element, it can be directly on the other element or there can also be an intermediate element. When an element is considered to be "connected" to another element, it can be directly connected to the other element or there may be an intermediate element at the same time. In addition, in the description of the present invention, unless otherwise specified, the meanings of "multiple", "multiple roots", and "multiple groups" are two or more.

[0070] The orientation or positional relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation to the present invention. In addition, the terms "first", "second", "third" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the quantity of the indicated technical features.

[0071] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those of ordinary skill in the technical field to which the present invention belongs. The terms used in the description of the present invention in this specification are only for the purpose of describing specific embodiments and are not intended to limit the present invention.

[0072] The various embodiments in this specification are described in a progressive manner. The key point of each embodiment is to illustrate the differences from other embodiments. The same or similar parts among the various embodiments can be referred to each other.

[0073] The PCB connection structure provided by the present invention has been introduced in detail above. Specific examples are used herein to elaborate on the principle and implementation manner of the present invention. The description of the above embodiments is only for helping to understand the method and its core idea of the present invention. It should be noted that for those of ordinary skill in the technical field, without departing from the principle of the present invention, several improvements and modifications can still be made to the present invention, and these improvements and modifications also fall within the protection scope of the claims of the present invention.

Claims

1. A PCB connection structure, characterized in that: The invention comprises a connecting column (7) and a first positioning column (5); a first threaded hole (71) is provided on a first end surface (72) at a first end in the axial direction of the connecting column (7); the first positioning column (5) is connected to the connecting column (7), and the first positioning column (5) has a first positioning protrusion (51) protruding axially from the first end surface (72); the relative positions of the first positioning protrusion (51) and the connecting column (7) in the circumferential direction are adjustable, and a circumferential limit can be formed after adjustment.

2. The PCB connection structure according to claim 1, characterized in that: The first positioning column (5) comprises a first mounting sleeve (52); the axial portion of the connecting column (7) is a first mounting column (77); the first mounting sleeve (52) is sleeved on the first mounting column (77); a first rotation limiting structure is provided between the first mounting sleeve (52) and the first mounting column (77) to form a circumferential limit.

3. The PCB connection structure according to claim 2, characterized in that: The connecting column (7) has a first shaft shoulder (75), and the first mounting column (77) is located between the first end surface (72) and the first shaft shoulder (75); the first mounting sleeve (52) can be axially mounted on the first mounting column (77) via one side of the first end surface (72), and can move to abut against the first shaft shoulder (75).

4. The PCB connection structure according to claim 2, characterized in that: The first rotation limiting structure comprises a threaded structure provided between the inner circumferential surface of the first mounting sleeve (52) and the outer circumferential surface of the first mounting column (77).

5. The PCB connection structure according to claim 2, characterized in that: The first rotation limiting structure comprises a plurality of rotation limiting grooves (771) arranged in sequence along the circumferential direction and provided on one of the inner circumferential surface of the first mounting sleeve (52) and the outer circumferential surface of the first mounting column (77), and a rotation limiting protrusion (521) provided on the other; the rotation limiting protrusion (521) can adjust the relative position of the first positioning column (5) and the connecting column (7) in the circumferential direction by cooperating with different rotation limiting grooves (771).

6. The PCB connection structure according to claim 2, characterized in that: A first cantilever (53) is provided on the outer peripheral surface of the first mounting sleeve (52) in a radially protruding manner, and the first positioning column (5) is provided on an end surface of the first cantilever (53) in the axial direction.

7. The PCB connection structure according to any one of claims 1 to 6, characterized in that: It also includes a second positioning column (6) connected to the connecting column (7); a second threaded hole (73) is provided on a second end surface (74) at a second axial end of the connecting column (7); the second positioning column (6) has a second positioning protrusion (61) axially protruding from the second end surface (74); the second positioning protrusion (61) and the connecting column (7) form a circumferential limit.

8. The PCB connection structure according to claim 7, characterized in that: The second positioning column (6) comprises a second mounting sleeve (62); the axial part of the connecting column (7) is a second mounting column (78); the second mounting sleeve (62) is sleeved on the second mounting column (78); a second rotation limiting structure is provided between the second mounting sleeve (62) and the second mounting column (78) to limit the position in the circumferential direction.

9. The PCB connection structure according to claim 8, characterized in that: The connecting column (7) has a second shaft shoulder (76), and the second mounting column (78) is located between the second end surface (74) and the second shaft shoulder (76); the second mounting sleeve (62) can be axially mounted on the second mounting column (78) via one side of the second end surface (74), and can move axially until it abuts against the second shaft shoulder (76).

10. The PCB connection structure according to claim 8, characterized in that: The second rotation limiting structure comprises an inner rotation limiting plane (621) provided on the inner circumference of the second mounting sleeve (62), and an outer rotation limiting plane (781) provided on the outer circumference of the second mounting column (78); the inner rotation limiting plane (621) and the outer rotation limiting plane (781) are fitted together to limit the position in the circumferential direction.

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