Combined connection PCB structure and multi-channel combined power supply

Abstract

The utility model belongs to the related field of PCB manufacturing, and particularly relates to a combined connection PCB structure and a multi-channel combined power supply. A circuit board assembly comprises a first circuit board, a second circuit board and a third circuit board; the first circuit board and the second circuit board are arranged in parallel, the third circuit board is perpendicular to the first circuit board and the second circuit board, the first circuit board is provided with a first insertion part, the second circuit board is provided with a second insertion part, and the third circuit board is provided with a third insertion part; a connecting assembly is arranged and comprises a first plug connector and a second plug connector; a bending part is arranged at one end of the second plug connector; the two ends of the first inserting piece are inserted between the first inserting part and the second inserting part, one end of the second inserting piece is inserted into the first inserting part, and the bending part is inserted into the third inserting part. Therefore, the circuit boards can be connected without wiring harnesses, the wiring harnesses of the circuit boards are reduced, the production is more convenient, and the production cost is lower.

Description

Technical Field

[0001] The utility model belongs to the field related to PCB manufacturing, and in particular relates to a combined connection PCB structure and a multi-channel combined power supply. Background Art

[0002] PCB circuit boards are very important components in electronic products, especially some modular multi-channel power supplies, which often have multiple discrete PCB boards. The devices on the PCB boards are not only complex and numerous, but also involve electrical wiring harness connections between multiple channels on multiple PCB boards.

[0003] In existing technologies, multiple PCB boards in a multi-channel combined power supply are connected by wiring harnesses. At the same time, electronic components are welded on both sides of the PCB boards. This results in a large number of wiring harnesses between the boards when the power supply structure space is limited. During production, there will be problems such as misconnection and unreliable connection due to the complex connection of the wiring harnesses. At the same time, too many wiring harnesses will also lead to high costs. Utility Model Content

[0004] Based on the above problems, the utility model proposes a combined connection PCB structure, which avoids the use of wiring harnesses for connection and adopts a unique clip-on structure for electrical clip-on connection of multiple circuit boards, thereby reducing the use of wiring harnesses and avoiding the problems of misconnection and unreliable connection caused by wiring harnesses.

[0005] The purpose of this utility model is achieved through the following technical solutions:

[0006] In a first aspect, the present invention provides a combined connection PCB structure, comprising:

[0007] A circuit board assembly includes a first circuit board, a second circuit board, and a third circuit board; the first circuit board and the second circuit board are arranged in parallel, and the third circuit board is arranged perpendicular to the first circuit board and the second circuit board; the first circuit board is provided with a first plug-in portion, the second circuit board is provided with a second plug-in portion, and the third circuit board is provided with a third plug-in portion;

[0008] The connecting component includes a first connector and a second connector; a bending portion is provided at one end of the second connector; both ends of the first connector are plugged between the first connector and the second connector, one end of the second connector is plugged into the first connector, and the bending portion is plugged into the third connector.

[0009] The invention provides a circuit board assembly comprising a first circuit board, a second circuit board, and a third circuit board; the first circuit board and the second circuit board are arranged in parallel, the third circuit board is arranged perpendicular to the first and second circuit boards; the first circuit board is provided with a first plug-in portion, the second circuit board is provided with a second plug-in portion, and the third circuit board is provided with a third plug-in portion; and a connection assembly is provided comprising a first plug-in component and a second plug-in component; one end of the second plug-in component is provided with a bent portion; both ends of the first plug-in component are plugged between the first plug-in portion and the second plug-in portion, one end of the second plug-in component is plugged into the first plug-in portion, and the bent portion is plugged into the third plug-in portion. This allows the circuit boards to be connected without a wiring harness, thereby reducing the number of wiring harnesses for the circuit boards, making production more convenient and reducing production costs.

[0010] In some embodiments, a fourth circuit board is further included, and the fourth circuit board is arranged parallel to the second circuit board, or the fourth circuit board is arranged obliquely under the second circuit board. The fourth circuit board is provided with a fourth plug-in portion, and the connection assembly is further provided with a third plug-in component, one end of the third plug-in component is plugged into the fourth plug-in portion; the other end of the third plug-in component is plugged into the second plug-in portion, and / or the other end of the third plug-in component is plugged into the third plug-in portion.

[0011] A fourth circuit board is also provided, which is arranged parallel to the first circuit board and the second circuit board, so that the fourth circuit board forms an overlapping structure, which is convenient for plugging and can also provide an inclined plugging method to match some special circuit board combinations.

[0012] In some embodiments, the first connector, the second connector, and the third connector are provided with a first conductive part and a second conductive part at both ends, a protective part is provided between the first conductive part and the second conductive part, a through hole is provided inside the protective part to electrically connect the first conductive part and the second conductive part inside the protective part, the bending part is the first conductive part, and / or the bending part is the second conductive part.

[0013] The connector is provided with conductive parts at both ends to conduct electricity to different circuit boards through the connector, and is also provided with a protective part to facilitate installation and removal.

[0014] In some embodiments, an anti-touch portion is provided at the bending portion, and the anti-touch portion abuts against the third circuit board.

[0015] The anti-touch portion can prevent the bent portion from directly touching the circuit board and causing an impact on the circuit board.

[0016] In some embodiments, the first plug-in portion, the second plug-in portion, the third plug-in portion, and the fourth plug-in portion are plug-in holes and metal conductive sheets are arranged around the plug-in holes, and / or the first plug-in portion, the second plug-in portion, the third plug-in portion, and the fourth plug-in portion are plug-in sockets and a metal conductive structure is arranged inside the plug-in sockets.

[0017] The plug-in part touches the metal conductive sheet when plugged in, and the metal conductive sheet is connected to the circuit of the circuit board, so that the circuits of other circuit boards can pass through the metal conductive sheet of the plug-in part, and the plug-in part conducts current to the circuits of other circuit boards. The plug-in part can be a socket, and the circuits of different circuit boards are connected by plugging the plug-in part into the socket.

[0018] In some embodiments, the second circuit board is a single-layer board, and the circuits and components of the second circuit board are all arranged on a side close to the first circuit board.

[0019] The electrical components of the second circuit board are designed on the same side, which reduces the complexity of the furnace process and reduces the cost of each board.

[0020] In some embodiments, the connecting component is provided with a fourth connector, and the first conductive part and the second conductive part are also provided on both sides of the fourth connector; the first conductive part and the second conductive part are electrically connected and a connecting part is provided in the middle, and the connecting part abuts against one side of the second circuit board, and the first conductive part and the second conductive part are provided on both sides of the second circuit board through the second connector.

[0021] A fourth connector is provided, and the fourth connector is provided on the second circuit board to realize the connection between the first circuit board and the third circuit board across the second circuit board.

[0022] In some embodiments, an insulating sleeve is further provided on the fourth connector.

[0023] The fourth connector is provided with an insulating sleeve to prevent the second circuit board from being affected when it is connected across the second circuit board.

[0024] In some embodiments, screw holes are provided on the periphery of the first circuit board, the second circuit board, and the fourth circuit board, and when the first circuit board, the second circuit board, and the fourth circuit board are arranged in parallel, the screw holes are aligned.

[0025] By setting screw holes, the fixation between multiple circuit boards is improved to prevent loosening and falling off caused by insufficient force during insertion.

[0026] In a second aspect, the present invention proposes a multi-channel combined power supply, comprising any one of the combined connection PCB structures mentioned in the first aspect, wherein the first circuit board is provided with a multi-channel power connection socket to supply power to power supplies of different channels.

[0027] By using any combination of the items mentioned in the first aspect to connect the PCB structure, the internal wiring harness of the multi-channel combined power supply can be reduced, thereby improving the stability and reliability of the power supply and reducing the manufacturing cost of the wiring harness.

[0028] The beneficial effects of the combined connection PCB structure and multi-channel combined power supply of the utility model are:

[0029] The invention provides a circuit board assembly comprising a first circuit board, a second circuit board, and a third circuit board; the first circuit board and the second circuit board are arranged in parallel, the third circuit board is arranged perpendicular to the first and second circuit boards; the first circuit board is provided with a first plug-in portion, the second circuit board is provided with a second plug-in portion, and the third circuit board is provided with a third plug-in portion; and a connection assembly is provided comprising a first plug-in component and a second plug-in component; one end of the second plug-in component is provided with a bent portion; both ends of the first plug-in component are plugged between the first plug-in portion and the second plug-in portion, one end of the second plug-in component is plugged into the first plug-in portion, and the bent portion is plugged into the third plug-in portion. This allows the circuit boards to be connected without a wiring harness, thereby reducing the number of wiring harnesses for the circuit boards, making production more convenient and reducing production costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 This is a three-dimensional diagram of a combined connection PCB structure of the utility model;

[0031] Figure 2 This is a three-dimensional diagram of a fourth circuit board of a combined connection PCB structure of the present invention;

[0032] Figure 3 This is a three-dimensional diagram of a third connector of a combined PCB structure of the present invention;

[0033] Figure 4 This is a three-dimensional diagram of a combined connection PCB structure and a fourth circuit board of the present invention;

[0034] Figure 5 This is a framework diagram of the multi-channel combined power supply of the utility model.

[0035] Reference numerals:

[0036] 100, first circuit board; 110, first plug-in portion; 111, first conductive portion; 112, second conductive portion; 113, protective portion

[0037] 200, second circuit board; 210, second plug-in portion;

[0038] 300, third circuit board; 310, third plug-in portion; 311, bending portion; 312, anti-touch portion;

[0039] 400, fourth circuit board; 410, fourth plug-in portion;

[0040] 500, first connector; 510, second connector; 520, third connector; 530, fourth connector; 531, insulating sleeve;

[0041] 600, socket; 610, socket; 620, screw hole. DETAILED DESCRIPTION

[0042] It should be noted that, in the absence of conflict, the embodiments of the present invention and the technical features in the embodiments can be combined with each other, and the detailed description in the specific implementation method should be understood as an explanation of the purpose of the present invention and should not be regarded as an improper limitation on the present invention.

[0043] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention more clear, the specific technical solutions of the present invention will be further described in detail below with reference to the drawings in the embodiments of the present invention. The following embodiments are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0044] In the embodiments of the present invention, the terms "first" and "second" are used for descriptive purposes only and should not be understood to indicate or imply relative importance or implicitly specify the number of the technical features indicated. Therefore, a feature specified as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of the embodiments of the present invention, unless otherwise specified, "plurality" means two or more.

[0045] In addition, in the embodiments of the present invention, directional terms such as "up", "down", "left" and "right" are defined relative to the orientation of the components in the drawings. It should be understood that these directional terms are relative concepts. They are used for relative description and clarification, and they may change accordingly according to changes in the orientation of the components in the drawings.

[0046] In the embodiments of the present invention, unless otherwise clearly specified and limited, the term "connection" should be understood in a broad sense. For example, "connection" can be a fixed connection, a detachable connection, or an integrated connection; it can be a direct connection or an indirect connection through an intermediate medium.

[0047] In the embodiments of the present invention, the terms "comprise", "include" or any other variations thereof are intended to cover non-exclusive inclusion. In the absence of further restrictions, an element defined by the phrase "comprises a ..." does not exclude the presence of other identical elements in the process, method, article or device that includes the element.

[0048] In the embodiments of the present invention, words such as "exemplary" or "for example" are used to indicate examples, illustrations, or descriptions. Any embodiment or design described as "exemplary" or "for example" in the embodiments of the present invention should not be construed as being preferred or advantageous over other embodiments or designs. Rather, the use of words such as "exemplary" or "for example" is intended to present the relevant information in a specific manner.

[0049] Example 1:

[0050] like Figure 1 As shown, this embodiment proposes a combined connection PCB structure, including:

[0051] A circuit board assembly includes a first circuit board 100, a second circuit board 200, and a third circuit board 300; the first circuit board 100 and the second circuit board 200 are arranged in parallel, and the third circuit board 300 is arranged perpendicular to the first circuit board 100 and the second circuit board 200; the first circuit board 100 is provided with a first plugging portion 110, the second circuit board 200 is provided with a second plugging portion 210, and the third circuit board 300 is provided with a third plugging portion 310;

[0052] The connecting component includes a first connector 500 and a second connector 510; a bending portion 311 is provided at one end of the second connector 510; both ends of the first connector 500 are inserted between the first connector 110 and the second connector 210, one end of the second connector 510 is inserted into the first connector 110, and the bending portion 311 is inserted into the third connector 310.

[0053] Specifically, in actual use, a circuit board assembly can be a complex electronic device with multiple circuit boards, employing the structure proposed in this embodiment. Alternatively, it can be a more complex double-sided circuit board, where the same functions or circuits are designed on the same single-sided circuit board, thereby forming multiple circuit boards. For example, the communication circuit and the power supply circuit are designed on different circuit boards, and the power supply output can be connected to the power supply input of the communication circuit via a connector. The number of circuit boards includes, but is not limited to, a first circuit board 100, a second circuit board 200, and a third circuit board 300. The circuit boards can be arranged parallel or vertically, allowing for flexible placement based on the actual installation space. When arranged parallel, they are plugged in using a symmetrical plug-in structure. When arranged vertically, one end is plugged in, while the other end is plugged in with a bend 311. By designing a connector with an "L" shape, the vertically arranged circuit boards can be plugged in using a connector with a bend 311, namely, the third connector 520. It should be noted that the first plug portion 110 , the second plug portion 210 , the third plug portion 310 , the first plug connector 500 , and the second plug connector 510 may be multiple depending on the specific circuit design.

[0054] The beneficial effect of this method is that, by in the circuit board assembly, which includes the first circuit board 100, the second circuit board 200, and the third circuit board 300; the first circuit board 100 and the second circuit board 200 are arranged in parallel, and the third circuit board 300 is arranged perpendicular to the first circuit board 100 and the second circuit board 200, the first circuit board 100 is provided with a first plug-in portion 110, the second circuit board 200 is provided with a second plug-in portion 210, and the third circuit board 300 is provided with a third plug-in portion 310; and a connecting component is provided, including a first plug-in component 500 and a second plug-in component 510; one end of the second plug-in component 510 is provided with a bending portion 311; both ends of the first plug-in component 500 are inserted between the first plug-in portion 110 and the second plug-in portion 210, one end of the second plug-in component 510 is inserted into the first plug-in portion 110, and the bending portion 311 is inserted into the third plug-in portion 310. The circuit boards can be connected without wiring harnesses, which reduces the number of wiring harnesses required, makes production more convenient and reduces production costs.

[0055] Example 2:

[0056] like Figures 2 to 4 As shown, based on Example 1, this embodiment further illustrates and optimizes the combined connection PCB structure proposed in Example 1.

[0057] In some embodiments, a fourth circuit board 400 is further included. The fourth circuit board 400 is arranged parallel to the second circuit board 200, or the fourth circuit board 400 is arranged obliquely under the second circuit board 200. The fourth circuit board 400 is provided with a fourth plug-in portion 410. The connection component is also provided with a third plug-in component 520. One end of the third plug-in component 520 is plugged into the fourth plug-in portion 410; the other end of the third plug-in component 520 is plugged into the second plug-in portion 210, and / or the other end of the third plug-in component 520 is plugged into the third plug-in portion 310.

[0058] Specifically, some embodiments further include a fourth circuit board 400. The fourth circuit board 400 can be arranged parallel to or below the second circuit board 200, or at an angle. If arranged parallel, the third connector 520 can be identical to the first connector 500, and the connection method can be similar to the connection method between the first circuit board 100 and the second circuit board 200 via the connector portion and the connector. If arranged at an angle, the third connector 520 can be arranged in an "L" shape, similar to the second connector 510. The bend 311 can be designed with a larger angled arc. The third connector 520 allows the fourth circuit board 400 to be plugged into the second circuit board 200 at an angle. Optionally, in some embodiments, the third connector 520 can be a wiring harness. Connecting the fourth circuit board 400 via the wiring harness eliminates the need for a fixed installation of the fourth circuit board 400.

[0059] The beneficial effect of this method is that a fourth circuit board 400 is also provided, and the fourth circuit board 400 is arranged parallel to the first circuit board 100 and the second circuit board 200, so that the fourth circuit board 400 forms an overlapping structure, which is convenient for plugging in and can also provide an inclined plugging method to match some special circuit board combinations.

[0060] In some embodiments, a first conductive portion 111 and a second conductive portion 112 are provided at both ends of the first connector 500, the second connector 510, and the third connector 520, a protective portion 113 is provided between the first conductive portion 111 and the second conductive portion 112, a through hole is provided inside the protective portion 113 to electrically connect the first conductive portion 111 and the second conductive portion 112 inside the protective portion 113, the bending portion 311 is the first conductive portion 111, and / or the bending portion 311 is the second conductive portion 112.

[0061] Specifically, a first conductive part 111 and a second conductive part 112 are provided at both ends of the connector, the first conductive part 111 and the second conductive part 112 are connected to different circuit boards, and a protective part 113 is provided, and the protective part 113 is provided between the first conductive part 111 and the second conductive part 112. The protective part 113 can avoid damage to the conductive part caused by direct contact during installation and disassembly.

[0062] The beneficial effect of this method is that the connector is provided with conductive parts at both ends to conduct electricity to different circuit boards through the connector, and a protective part 113 is also provided to facilitate installation and removal.

[0063] In some embodiments, an anti-touch portion 312 is provided at the bending portion of the bending portion 311 , and the anti-touch portion 312 abuts against the third circuit board 300 .

[0064] Specifically, the anti-touch portion 312 is provided at the bend. When the second connector 510 is plugged into the third circuit board 300, the anti-touch portion 312 abuts against the third circuit board 300, thereby preventing the conductive portion of the second connector 510 from abutting against the third circuit board 300 and causing the circuit board to burn out.

[0065] The beneficial effect of this approach is that the anti-touch portion 312 can prevent the bent portion 311 from directly touching the circuit board and causing an impact on the circuit board.

[0066] In some embodiments, the first plug-in portion 110, the second plug-in portion 210, the third plug-in portion 310, and the fourth plug-in portion 410 are plug-in holes 600 and metal conductive sheets are arranged around the plug-in holes 600, and / or the first plug-in portion 110, the second plug-in portion 210, the third plug-in portion 310, and the fourth plug-in portion 410 are plug-in sockets 610 and a metal conductive structure is arranged inside the plug-in sockets 610.

[0067] Specifically, the first plug portion 110, the second plug portion 210, the third plug portion 310, and the fourth plug portion 410 are plug holes 600, and metal conductive sheets are provided around the plug holes 600. The corresponding plug connected to the plug portion can be a metal needle-shaped plug, so that the needle can be inserted into the plug hole 600; and / or the first plug portion 110, the second plug portion 210, the third plug portion 310, and the fourth plug portion 410 are plug sockets 610, and the plug sockets 610 are provided with metal conductive structures, so that the metal needle-shaped plug can be inserted into the plug sockets 610. The first plug portion 110, the second plug portion 210, the third plug portion 310, and the fourth plug portion 410 can be a mixed arrangement of plug holes 600 and plug sockets 610.

[0068] The beneficial effect of this method is that the plug-in part touches the metal conductive sheet when plugged in, and the metal conductive sheet is connected to the circuit of the circuit board, so that the circuits of other circuit boards can pass through the metal conductive sheet of the plug-in part, and the plug-in part conducts current to the circuits of other circuit boards. The plug-in part can be a socket 610, and the circuits of different circuit boards are connected by plugging the plug-in part into the socket 610.

[0069] In some embodiments, the second circuit board 200 is a single-layer board, and the circuits and components of the second circuit board 200 are all arranged on a side close to the first circuit board 100 .

[0070] The beneficial effect of this method is that the electrical components of the second circuit board 200 are designed on the same side, which reduces the complexity of the furnace process and reduces the cost of a single board.

[0071] In some embodiments, the connecting component is provided with a fourth connector 530, and the first conductive part 111 and the second conductive part 112 are also provided on both sides of the fourth connector 530; the first conductive part 111 and the second conductive part 112 are electrically connected and a connecting part is provided in the middle, and the connecting part abuts against one side of the second circuit board 200, and the first conductive part 111 and the second conductive part 112 are provided on both sides of the second circuit board 200 through the second connector 210.

[0072] Specifically, since the first circuit board 100 and the fourth circuit board 400 may be connected, a fourth connector 530 is also provided. The fourth connector 530 is fixed on the second circuit board 200 and is fixed on the second circuit board 200 through the connecting portion of the second circuit board 200, and the first circuit board 100 and the fourth circuit board 400 are connected through the conductive portions at both ends.

[0073] The beneficial effect of this approach is that a fourth connector 530 is provided, and the fourth connector 530 is provided on the second circuit board 200 to achieve connection between the first circuit board 100 and the third circuit board 300 across the second circuit board 200 .

[0074] In some embodiments, an insulating sleeve 531 is further provided on the fourth connector 530 .

[0075] Specifically, the insulating sleeve 531 prevents the fourth connector 530 from contacting the second circuit board 200. The fourth connector 530 is provided with the insulating sleeve 531 to prevent the fourth connector 530 from affecting the second circuit board 200 when connecting across the second circuit board 200.

[0076] In some embodiments, screw holes 620 are provided on the periphery of the first circuit board 100 , the second circuit board 200 , and the fourth circuit board 400 , and when the first circuit board 100 , the second circuit board 200 , and the fourth circuit board 400 are arranged in parallel, the screw holes 620 are aligned.

[0077] Specifically, first circuit board 100, second circuit board 200, and fourth circuit board 400 are provided with screw holes 620. When multiple circuit boards (first circuit board 100, second circuit board 200, and fourth circuit board 400) are stacked, screw holes 620 are aligned, and screws are sequentially inserted through first circuit board 100, second circuit board 200, and fourth circuit board 400 to securely connect them. This approach has the beneficial effect of improving the fixation between multiple circuit boards by providing screw holes 620, preventing loosening and falling off caused by insufficient force during insertion.

[0078] Example 3:

[0079] like Figure 5 As shown, based on Example 1 and Example 2, this embodiment proposes a multi-channel combined power supply, including any one of the combined connection PCB structures mentioned in the first aspect, and the first circuit board 100 is provided with a multi-channel power connection socket to supply power to power supplies of different channels.

[0080] Specifically, the multi-channel combination power supply is provided with multiple power connection sockets, through which power is supplied to the external power supplies of multiple channels. The multi-channel combination power supply adopts a combined connection PCB structure internally, and its power supply circuit is arranged on the first circuit board 100 to directly supply power to the outside. The protection circuit, monitoring circuit, communication circuit, control circuit and other circuits of the multi-channel combination power supply that do not require external connection are arranged on the second circuit board 200, the third circuit board 300, and the fourth circuit board 400, and are interconnected by plugging to reduce the wiring harness inside the multi-channel combination power supply.

[0081] By using any combination of the items mentioned in the first aspect to connect the PCB structure, the internal wiring harness of the multi-channel combined power supply can be reduced, thereby improving the stability and reliability of the power supply and reducing the manufacturing cost of the wiring harness.

[0082] The serial numbers of the utility model embodiments are for descriptive purposes only and do not represent the superiority or inferiority of the embodiments. The above are only preferred embodiments of the utility model and do not limit the scope of the patent of the utility model. Any equivalent device or equivalent process transformation made by using the contents of the utility model specification and drawings, or directly or indirectly applied in other related technical fields, are also included in the scope of patent protection of the utility model.

Claims

1. A combined connection PCB structure, characterized in that: include: A circuit board assembly comprises a first circuit board (100), a second circuit board (200), and a third circuit board (300); the first circuit board (100) and the second circuit board (200) are arranged in parallel, the third circuit board (300) is arranged perpendicular to the first circuit board (100) and the second circuit board (200), the first circuit board (100) is provided with a first plug-in portion (110), the second circuit board (200) is provided with a second plug-in portion (210), and the third circuit board (300) is provided with a third plug-in portion (310); A connecting assembly comprises a first plug-in connector (500) and a second plug-in connector (510); one end of the second plug-in connector (510) is provided with a bending portion (311); both ends of the first plug-in connector (500) are plugged between the first plug-in connector (110) and the second plug-in connector (210); one end of the second plug-in connector (510) is plugged into the first plug-in connector (110), and the bending portion (311) is plugged into the third plug-in connector (310).

2. The combined connection PCB structure according to claim 1, characterized in that: The invention also includes a fourth circuit board (400), wherein the fourth circuit board (400) is arranged parallel to the second circuit board (200), or the fourth circuit board (400) is arranged obliquely on one side of the second circuit board (200), and the fourth circuit board (400) is provided with a fourth plug-in portion (410). The connection assembly is further provided with a third plug-in component (520), one end of the third plug-in component (520) is plugged into the fourth plug-in portion (410); the other end of the third plug-in component (520) is plugged into the second plug-in portion (210), and / or the other end of the third plug-in component (520) is plugged into the third plug-in portion (310).

3. The combined connection PCB structure according to claim 2, characterized in that: The first connector (500), the second connector (510), and the third connector (520) are each provided with a first conductive portion (111) and a second conductive portion (112) at both ends; a protective portion (113) is provided between the first conductive portion (111) and the second conductive portion (112); a through hole is provided inside the protective portion (113) so that the first conductive portion (111) and the second conductive portion (112) are electrically connected inside the protective portion (113); the bending portion (311) is the first conductive portion (111), and / or the bending portion (311) is the second conductive portion (112).

4. The combined connection PCB structure according to claim 3, characterized in that: An anti-touch portion (312) is provided at the bending portion of the bending portion (311), and the anti-touch portion (312) abuts against the third circuit board (300).

5. The combined connection PCB structure according to claim 3, characterized in that: The first plug-in portion (110), the second plug-in portion (210), the third plug-in portion (310), and the fourth plug-in portion (410) are plug-in holes (600), and a metal conductive sheet is provided around the plug-in hole (600); and / or the first plug-in portion (110), the second plug-in portion (210), the third plug-in portion (310), and the fourth plug-in portion (410) are plug-in sockets (610), and a metal conductive structure is provided inside the plug-in socket (610).

6. The combined connection PCB structure according to claim 4, characterized in that: The second circuit board (200) is a single-layer board, and the circuits and components of the second circuit board (200) are all arranged on a side close to the first circuit board (100).

7. The combined connection PCB structure according to claim 6, characterized in that: The connecting component is provided with a fourth plug-in connector (530), and the first conductive part (111) and the second conductive part (112) are also provided on both sides of the fourth plug-in connector (530); the first conductive part (111) and the second conductive part (112) are electrically connected and a connecting part is provided in the middle, and the connecting part abuts against one side of the second circuit board (200), and the first conductive part (111) and the second conductive part (112) are provided on both sides of the second circuit board (200) through the second plug-in connector (210).

8. The combined connection PCB structure according to claim 7, characterized in that: The fourth connector (530) is also provided with an insulating sleeve (531).

9. The combined connection PCB structure according to claim 8, characterized in that: Screw holes (620) are provided on the circumference of the first circuit board (100), the second circuit board (200), and the fourth circuit board (400), and when the first circuit board (100), the second circuit board (200), and the fourth circuit board (400) are arranged in parallel, the screw holes (620) are arranged in alignment.

10. A multi-channel combined power supply, characterized in that: The combined connection PCB structure comprises the structure described in any one of claims 1 to 9, wherein the first circuit board (100) is provided with a multi-channel power connection socket to supply power to power supplies of different channels.

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