Circuit board connecting structure and electrical appliance

Abstract

A circuit board connecting structure and an electrical appliance. The circuit board connecting structure comprises a circuit board and an adapter board. The circuit board is provided with a first connecting portion, and the adapter board is provided with a second connecting portion. One of the first connecting portion and the second connecting portion is a plug, and the other of the first connecting portion and the second connecting portion is a socket. The plug is inserted into the jack of the socket, so as to electrically connect the circuit board and the adapter board.

Description

Circuit board connection structure and electrical appliances

[0001] This application claims priority to the Chinese patent application filed with the China Patent Office on December 8, 2023, with application number 202323366088.2 and utility model name “Circuit board connection structure and electrical appliance”, the entire contents of which are incorporated by reference into this application. Technical Field

[0002] The present application relates to the technical field of electronic equipment, and in particular to a circuit board connection structure and an electrical appliance. Background Art

[0003] Mini-LED (mini light emitting diode) has been widely used in televisions. Mini-LED TVs have a large number of LEDs, and the PCB (Printed Circuit Board) equipped with a large number of Mini-LEDs needs to be placed inside the metal backplane structure of the TV. The central control unit that controls the Mini-LEDs will be placed outside the metal backplane for reasons such as heat dissipation and display aging. Technical issues

[0004] Currently, the electrical connection between the PCB and the driver board of an external central control unit is typically achieved by installing a socket on the PCB and connecting it via wires. This requires a socket for each PCB, and each socket requires a corresponding plug-type cable to connect to the external driver board. This results in complex wiring and a large amount of wire used, which increases production costs. Technical Solutions

[0005] In a first aspect, an embodiment of the present application provides a circuit board connection structure, comprising:

[0006] A circuit board is configured with a first connecting portion;

[0007] The adapter plate is configured with a second connecting portion;

[0008] Wherein, one of the first connecting portion and the second connecting portion is a plug, and the other is a socket. The plug is inserted into the jack of the socket to electrically connect the circuit board with the adapter board.

[0009] In a second aspect, an embodiment of the present application further provides an electrical appliance, which includes a circuit board connection structure, wherein the circuit board connection structure includes:

[0010] A circuit board is configured with a first connecting portion;

[0011] The adapter plate is configured with a second connecting portion;

[0012] Wherein, one of the first connecting portion and the second connecting portion is a plug, and the other is a socket. The plug is inserted into the jack of the socket to electrically connect the circuit board with the adapter board. Beneficial effects

[0013] The circuit board connection structure and electrical appliance provided in the embodiments of the present application utilize a first connection portion constructed on the circuit board and a second connection portion constructed on the adapter board. One of the first connection portion and the second connection portion is a plug, and the other is a socket. Based on the plug-in connection between the plug and the socket, the circuit board can be plugged into and electrically connected to the adapter board. This reduces the use of wires, optimizes the circuit board layout, and saves circuit board installation costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] FIG1 is one of the structural schematic diagrams of the circuit board connection structure provided in an embodiment of the present application.

[0015] FIG2 is a second structural schematic diagram of the circuit board connection structure provided in an embodiment of the present application.

[0016] FIG3 is a third structural diagram of the circuit board connection structure provided in an embodiment of the present application.

[0017] FIG4 is one of the partial structural diagrams of the structural adjustment mechanism on the back panel provided in an embodiment of the present application.

[0018] FIG5 is a second schematic diagram of the partial structure of the structural adjustment mechanism on the back panel provided in an embodiment of the present application.

[0019] Implementation Methods of the Application

[0020] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the embodiments described are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without making creative efforts are within the scope of protection of this application.

[0021] In the description of the present application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply 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 limiting the present application. In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the said features. In the description of the present application, "multiple" means two or more, unless otherwise clearly and specifically defined.

[0022] In the description of this application, it should be noted that, unless otherwise expressly specified or limited, the terms "installed," "connected," and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections, electrical connections, or mutual communication; they can refer to direct connections or indirect connections through an intermediate medium; they can refer to internal communication between two components or the interaction between two components. Those skilled in the art will understand the specific meanings of the above terms in this application based on specific circumstances.

[0023] In this application, unless otherwise expressly specified or limited, a first feature being "above" or "below" a second feature may include the first and second features being in direct contact, or may include the first and second features being in contact not directly but through another feature between them. Moreover, a first feature being "above," "above," and "above" a second feature may include the first feature being directly above or obliquely above the second feature, or may simply mean that the first feature is higher in level than the second feature. A first feature being "below," "below," and "below" a second feature may include the first feature being directly below or obliquely below the second feature, or may simply mean that the first feature is lower in level than the second feature.

[0024] The disclosure below provides many different embodiments or examples for realizing different structures of the present application. In order to simplify the disclosure of the present application, the components and settings of specific examples are described below. Of course, they are merely examples and are not intended to limit the present application. In addition, the present application may repeat reference numbers and / or reference letters in different examples, and such repetition is for the purpose of simplicity and clarity, and does not itself indicate the relationship between the various embodiments and / or settings discussed. In addition, the present application provides examples of various specific processes and materials, but those of ordinary skill in the art will appreciate the application of other processes and / or the use of other materials.

[0025] Specifically, referring to Figures 1 to 5 , an embodiment of the present application provides a circuit board connection structure, including a circuit board 10 and an adapter board 20. The circuit board 10 is configured with a first connection portion 110, and the adapter board 20 is configured with a second connection portion 210. One of the first connection portion 110 and the second connection portion 210 is a plug, and the other is a socket. The plug is inserted into the socket of the socket to electrically connect the circuit board 10 to the adapter board 20.

[0026] In this embodiment, a first connection portion 110 is formed on the circuit board 10, and a second connection portion 210 is formed on the adapter board 20. One of the first connection portion 110 and the second connection portion 210 is a plug, and the other is a socket. Through the plug-in connection between the plug and the socket, the circuit board 10 can be plugged into and electrically connected to the adapter board 20. This reduces the use of wires, optimizes the layout of the circuit board 10, and reduces the installation cost of the circuit board 10.

[0027] Among them, the circuit board connection structure is particularly suitable for use in televisions, and the circuit board 10 corresponds to a light board. As shown in Figures 1 to 3, LEDs can be installed on the circuit board 10. The LEDs can be designed as one row or multiple rows at intervals according to needs. Each row can be provided with one LED or multiple LEDs can be provided at intervals. The circuit board 10 and the adapter board 20 are both installed inside the back panel 30 of the television, while the central control unit is configured outside the back panel 30 of the television. At this time, the electrical connection between the internal circuit board 10 and the external central control unit can be achieved through a connecting wire based on the adapter board 20. In this way, the use of wires can be reduced, and the design cost and production cost can be reduced.

[0028] The circuit board 10 can be configured in a rectangular, square, long strip, comb, harpoon, or other shapes, as long as the circuit board 10 can be connected to the adapter board 20 through the cooperation between the first connection portion 110 and the second connection portion 210 .

[0029] The plug can be configured as a solder pad with exposed copper on the outer surface, so that when the plug is inserted into the socket, it can form an electrical connection with the socket. The socket can include a base, terminals, and solder tabs, and the terminals and solder tabs are fixed to the adapter board 20 through a tinning process.

[0030] For example, as shown in FIG1 , the first connection portion 110 is a plug, and the second connection portion 210 is a socket. That is, a plug is constructed on the circuit board 10, and a socket is constructed on the adapter board 20. Based on the plug-in connection between the plug and the socket, the electrical connection between the circuit board 10 and the adapter board 20 is achieved. In this embodiment, the plug is integrally formed on the circuit board 10. Since the plug is integrally formed on the circuit board 10, there is no need to construct other connection structures on the circuit board 10. Since the process of integrally forming the exposed copper material as a plug on each circuit board 10 during the molding stage is relatively simple, compared with the form of providing a socket on the circuit board 10, the integrally formed plug structure can further reduce costs and simplify the production process.

[0031] For example, the first connection portion 110 is a socket and the second connection portion 210 is a plug. That is, the socket is constructed on the circuit board 10 and the plug is constructed on the adapter board 20. Based on the plug and the socket being plugged in, the circuit board 10 and the adapter board 20 are electrically connected.

[0032] In some embodiments, the socket is configured with a locking member that is configured to engage the plug so that the plug is locked to the socket. It is understood that the locking member is used to lock the plug so that the plug can be securely fixed to the socket to prevent the circuit board 10 and the adapter board 20 from being disconnected.

[0033] For example, the locking member may be a plastic buckle, which is used to snap the plug into the socket of the socket, thereby achieving reliable fixation of the plug and the socket and preventing the circuit board 10 and the adapter board 20 from being disconnected.

[0034] For example, the locking member can be a solder layer. After the plug is inserted into the socket of the socket, the plug and the socket are further fixed by tinning and soldering to achieve a reliable connection between the two and prevent the circuit board 10 and the adapter board 20 from being separated.

[0035] For example, the locking member can be an elastic pressing piece arranged in the socket. After the plug is inserted into the socket of the socket, the elastic pressing piece can press the plug so that the plug can be reliably fixed to the socket, preventing the circuit board 10 and the adapter board 20 from being disconnected.

[0036] For example, the locking member can be a fastener such as a screw. In this case, threaded holes need to be set in both the socket and the plug. The fasteners are passed through the threaded holes of the socket and the threaded holes of the plug so that the plug can be reliably fixed to the socket to prevent the circuit board 10 and the adapter board 20 from being connected and separated.

[0037] As shown in FIG2 , in some embodiments, the circuit board 10 is configured with at least two first connection portions 110 . Reasonable spacing between the first connection portions 110 allows the circuit board 10 to have a suitable size and facilitates plugging the circuit board 10 with the adapter board 20 .

[0038] The number of the first connecting portions 110 matches the number of the second connecting portions 210 , and the number of the first connecting portions 110 and the second connecting portions 210 may be selected based on the number and distribution of LEDs on the circuit board 10 .

[0039] As shown in FIG1 , in some embodiments, each circuit board 10 may be provided with only one first connection portion 110, and multiple circuit boards 10 may be provided. Simultaneously, a corresponding number of second connection portions 210 are provided on the adapter board 20 based on the number of circuit boards 10. For example, when there are three circuit boards 10, three corresponding second connection portions 210 are provided on the adapter board 20.

[0040] In some embodiments, the plug is constructed with at least two conductive parts spaced apart from each other, the conductive parts extending toward the socket, wherein the distance between any two adjacent conductive parts is 1 mm to 2 mm.

[0041] It is understood that the conductive portion is a terminal pin or gold finger constructed on the plug, which is used to achieve an electrical connection between the plug and the socket when the plug is plugged in. Setting the spacing between two adjacent conductive portions to 1 mm to 2 mm can ensure the reliability of the signal connection between the plug and the socket, as well as the reliability of short-circuit testing and electrostatic testing. For example, the spacing between two adjacent conductive portions can be 1 mm, 2 mm, or any value in between.

[0042] The plug further includes an insulating portion between each two adjacent conductive portions, the insulating portion being used to insulate the two adjacent conductive portions to prevent short circuits, and the width of the insulating portion corresponding to the spacing between the two adjacent conductive portions.

[0043] In some embodiments, a protective layer is provided on the outer surface of the conductive portion to protect the conductive portion. Specifically, the protective layer can be applied to the outer surface of the conductive portion by electroplating. For example, the protective layer can be tinned or gold-plated to prevent oxidation or absorption of salt spray, which can cause rust and other undesirable phenomena. Alternatively, the protective layer can be applied to the outer surface of the conductive portion by coating, spraying, or other methods to ensure that the protective layer provides a protective effect.

[0044] Based on the tin plating layer or the gold plating layer being used as the protective layer, in order to prevent the insulating part from being electrically conductive, there is no need to construct a protective layer on the outer surface of the insulating part.

[0045] In some embodiments, the circuit board connection structure also includes a backplane 30, which is configured with a first connection hole. The second connection part 210 is a socket, which is configured with a second connection hole. Fasteners are inserted into the first connection hole and the second connection hole for connecting the backplane 30 and the socket.

[0046] It is understood that the alignment of the first and second connection holes allows the socket to be precisely fixed to the back plate 30, thereby enabling the adapter plate 20 to be accurately installed on the back plate 30. Furthermore, the fasteners provided through the first and second connection holes facilitate assembly and disassembly of the socket from the back plate 30. The fasteners may be screws, etc.

[0047] Since the circuit board connection structure is provided on the back plate 30 , it can be applied to a television set and installed inside the television set.

[0048] In some embodiments, the back plate 30 is configured with a positioning mechanism, and the positioning mechanism is configured to allow the circuit board 10 to be inserted and positioned so as to be inserted with the adapter board 20 .

[0049] The positioning mechanism can position and guide the circuit board 10, so that the circuit board 10 can be pre-positioned by the positioning mechanism and then slid along the positioning mechanism to be installed on the adapter plate 20. Based on the adapter plate 20 being accurately positioned and installed on the back plate 30 first, and then pre-positioned and guided by the positioning mechanism, the circuit board 10 and the adapter plate 20 can be accurately plugged into each other, making the installation of the circuit board 10 more convenient and quick.

[0050] The positioning mechanism can extend along the direction of the adapter plate 20, thereby allowing the circuit board 10 to gradually approach the adapter plate 20 as it slides along the positioning mechanism. For example, the positioning mechanism 20 is a slide groove, and the circuit board 10 is slidably installed in the slide groove, and the adapter plate 20 is located at the edge of one side of the slide groove. As a result, the circuit board 10 can be plugged into the adapter plate 20 after sliding along the slide groove.

[0051] For example, the positioning mechanism 20 is two positioning columns arranged at intervals, and the circuit board 10 has two strip-shaped notches. The two strip-shaped notches can be respectively engaged in the two positioning columns, and the circuit board 10 can be slidably guided based on the extension direction of the strip-shaped notches. After the circuit board 10 slides along the positioning columns, it can be plugged into the adapter board 20.

[0052] For example, the positioning mechanism 20 is composed of two spaced-apart limiting posts, the spacing between which corresponds to the width of the circuit board 10, and both limiting posts extending in the direction of the adapter plate 20. The circuit board 10 is pre-positioned and installed between the two limiting posts, and then slid toward the adapter plate 20, so that the circuit board 10 can be plugged into the adapter plate 20 after sliding.

[0053] In some embodiments, the back plate 30 is configured with an adjustment mechanism 40 , and the adjustment mechanism 40 is configured to abut against the circuit board 10 , or the adjustment mechanism 40 is configured to connect to the adapter plate 20 so that the circuit board 10 abuts against the back plate 30 .

[0054] It is understandable that because the socket is constructed on the adapter board 20 and can only be located on the side of the adapter board 20, when the plug of the circuit board 10 is inserted into the socket, there will be a height difference between the circuit board 10 and the adapter board 20. This height difference may cause a gap to gradually appear between the circuit board 10 and the back plate 30, causing damage to the circuit board 10 due to stress. The configuration of the adjustment mechanism 40 can compensate for the height difference caused by the plug-in assembly of the circuit board 10 and the adapter board 20, ensure the flatness of the installation of the circuit board 10, and ensure that the circuit board 10 is securely mounted on the back plate 30.

[0055] As shown in FIG4 , in some embodiments, the adjustment mechanism 40 can be a protrusion formed on the backplate 30 . The protrusion's structural configuration allows it to abut against the circuit board 10, providing support for the circuit board 10 and compensating for the height difference caused by the plug-in assembly of the circuit board 10 and the adapter board 20 . This ensures the smooth installation of the circuit board 10 and prevents damage to the circuit board 10. The circuit board 10 can also be bonded to the protrusion via an adhesive layer, ensuring a reliable connection between the circuit board 10 and the backplate 30. The adhesive layer can be made of glue, for example.

[0056] As shown in FIG5 , in some embodiments, the adjustment mechanism 40 can be a recessed portion constructed on the back plate 30. Based on the structural configuration of the recessed portion, the recessed portion can accommodate the adapter plate 20, allowing the circuit board 10 to directly abut the back plate 30. This compensates for the height difference caused by the plug-in assembly of the circuit board 10 and the adapter plate 20, ensures the flatness of the installation of the circuit board 10, and prevents damage to the circuit board 10. The circuit board 10 can also be bonded to the back plate 30 via an adhesive layer to ensure a reliable connection between the circuit board 10 and the back plate 30. The adhesive layer can be glue, etc.

[0057] In some embodiments, the circuit board connection structure further includes a central control unit mounted on the side of the backplate 30 facing away from the circuit board 10. As shown in FIG3 , the central control unit includes a driver board 50, a power board 60, and a main control board 70. The power board 60 is electrically connected to the driver board 50. The main control board 70 is electrically connected to the driver board 50. The backplate 30 is configured with a through hole, through which a connecting wire is passed. The connecting wire is configured to connect the adapter board 20 and the driver board 50, thereby electrically connecting the adapter board 20 to the central control unit.

[0058] The power board 60 and main control board 70 are electrically connected to the driver board 50 for power input and signal communication. The main control board 70 is connected to the adapter board 20 via cables, providing power and signals to the circuit board 10. Connecting cables are passed through through-holes in the back panel 30 to electrically connect the circuit board 10 and adapter board 20 located inside the back panel 30 to the central control unit located outside the back panel 30.

[0059] In the circuit board connection structure of this embodiment, the circuit board 10 is connected to the adapter board 20 based on a plug-in method, and the adapter board 20 can be electrically connected to the external central control unit with only one connecting wire. As a result, the wires between the central control unit and the circuit board 10 are simplified, the amount of wires used is reduced, and there is no need to consider wiring and routing methods, which reduces design costs and production costs. The embodiment of the present application also provides an electrical appliance, including the circuit board connection structure of the aforementioned embodiment. The electrical appliance especially includes display appliances such as televisions, and of course also includes other household appliances or commercial appliances with display functions.

[0060] In this embodiment, a first connection portion 110 is formed on the circuit board 10, and a second connection portion 210 is formed on the adapter board 20. One of the first connection portion 110 and the second connection portion 210 is a plug, and the other is a socket. Through the plug-in connection between the plug and the socket, the circuit board 10 can be plugged into and electrically connected to the adapter board 20. This reduces the use of wires, optimizes the layout of the circuit board 10, and reduces the installation cost of the circuit board 10.

[0061] Based on the application of this circuit board connection structure in televisions, for television products below 1000-level partitions, the cost of each unit can be saved by 10 to 20 yuan.

[0062] In the above embodiments, the description of each embodiment has its own focus. For parts that are not described in detail in a certain embodiment, reference can be made to the relevant descriptions of other embodiments.

[0063] The above is a detailed introduction to a circuit board connection structure and an electrical appliance provided in the embodiments of the present application. Specific examples are used in this article to illustrate the principles and implementation methods of the present application. The description of the above embodiments is only used to help understand the technical solutions and core ideas of the present application. Ordinary technicians in this field should understand that they can still modify the technical solutions recorded in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein; and these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present application.

Claims

1. A circuit board connection structure, comprising: A circuit board is configured with a first connecting portion; The adapter plate is configured with a second connecting portion; Among them, one of the first connecting part and the second connecting part is a plug, and the other is a socket. The plug is inserted into the jack of the socket to electrically connect the circuit board with the adapter board.

2. The circuit board connection structure according to claim 1, wherein: The socket is configured with a locking member, and the locking member is configured to be connected to the plug so that the plug is locked to the socket.

3. The circuit board connection structure according to claim 2, wherein: The locking piece is a plastic buckle.

4. The circuit board connection structure according to claim 2, wherein: The locking piece is an elastic pressing piece arranged in the insertion hole.

5. The circuit board connection structure according to claim 1, wherein: The plug is configured with at least two conductive portions that are spaced apart from each other and extend toward the socket.

6. The circuit board connection structure according to claim 5, wherein: The distance between each two adjacent conductive parts is 1 mm to 2 mm.

7. The circuit board connection structure according to claim 5, wherein: An insulating portion is further arranged between two adjacent conductive portions.

8. The circuit board connection structure according to claim 5, wherein: A protective layer is provided on the outer surface of the conductive part.

9. The circuit board connection structure according to claim 8, wherein: The protective layer is a tin-plated layer or a gold-plated layer.

10. The circuit board connection structure according to claim 1, wherein: The first connecting portion is a plug, and the plug is integrally formed with the circuit board.

11. The circuit board connection structure according to claim 1, wherein: The circuit board connection structure also includes: The back plate is configured with a first connection hole, the second connection part is a socket, the socket is configured with a second connection hole, and fasteners are inserted into the first connection hole and the second connection hole for connecting the back plate and the socket.

12. The circuit board connection structure according to claim 11, wherein: The back plate is constructed with a positioning mechanism, and the positioning mechanism is configured to allow the circuit board to be inserted and positioned so as to be inserted with the adapter board.

13. The circuit board connection structure according to claim 12, wherein: The circuit board connection structure further includes a central control unit installed on a side of the back plate facing away from the circuit board, wherein the central control unit includes: Driver board; A power board, electrically connected to the driving board; A main control board, electrically connected to the driving board; The back plate is configured with a through hole, a connecting wire is passed through the through hole, and the connecting wire is configured to connect the adapter board and the driving board so that the adapter board is electrically connected to the central control unit.

14. The circuit board connection structure according to claim 12, wherein: The positioning mechanism is a sliding groove, and the positioning mechanism extends along the direction of the adapter plate.

15. The circuit board connection structure according to claim 12, wherein: The positioning mechanism is two positioning posts arranged at intervals; the circuit board is provided with two strip-shaped notches, and the two strip-shaped notches are respectively clamped in the two positioning posts.

16. The circuit board connection structure according to claim 12, wherein: The positioning mechanism is two spaced-apart limiting columns; the distance between the two limiting columns corresponds to the width of the circuit board; and both of the two limiting columns extend in the direction of the adapter plate.

17. The circuit board connection structure according to claim 11, wherein: The back plate is constructed with an adjustment mechanism configured to abut the circuit board.

18. The circuit board connection structure according to claim 17, wherein: The adjustment mechanism is a recessed portion.

19. The circuit board connection structure according to claim 17, wherein: The adjustment mechanism is configured to connect the adapter plate so that the circuit board abuts against the back plate.

20. An electrical appliance, comprising a circuit board connection structure, the circuit board connection structure comprising: A circuit board is configured with a first connecting portion; The adapter plate is configured with a second connecting portion; Among them, one of the first connecting part and the second connecting part is a plug, and the other is a socket. The plug is inserted into the jack of the socket to electrically connect the circuit board with the adapter board.

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