Spliced circuit board

Abstract

The utility model provides a spliced circuit board which comprises a first circuit board frame, one end of the first circuit board frame is provided with a second circuit board frame, and a connecting mechanism is arranged between the second circuit board frame and the first circuit board frame. According to the utility model, a plurality of semi-column frames at the top ends of the first circuit board frame and the second circuit board frame are attached to form a column body, a pressing and buckling plate is buckled and installed in a connecting groove, and a notch in the surface of the pressing and buckling plate wraps the outer walls of the semi-column frames; after the first circuit board frame and the second circuit board frame abut against each other and are connected, a plurality of semi-column frames at the top ends of the first circuit board frame and the second circuit board frame are attached to each other to form a cylindrical buckle, and then the cylindrical buckle formed by the attachment of the semi-column frames is buckled in a sleeved mode in cooperation with a pressing buckle plate. And the connection tightness of the first circuit board frame and the second circuit board frame is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of circuit boards, in particular to a spliced ​​circuit board. Background Art

[0002] Circuit boards are known as ceramic circuit boards, alumina ceramic circuit boards, aluminum nitride ceramic circuit boards, circuit boards, PCB boards, aluminum substrates, high-frequency boards, thick copper boards, impedance boards, PCBs, ultra-thin circuit boards, ultra-thin printed circuit boards, and printed and copper-etched technology circuit boards. Circuit boards miniaturize and visualize circuits, playing an important role in the mass production of fixed circuits and optimizing the layout of electrical appliances.

[0003] For example, a spliced ​​printed circuit board with publication number CN220896898U includes a mounting plate, a circuit board is fixed above the mounting plate, slots are symmetrically opened on the side of the mounting plate, a disassembly switch is symmetrically fixed to the top surface of the mounting plate, a disassembly component is arranged inside the disassembly switch, an insert block is symmetrically fixed to the other side of the mounting plate, and a fixing component is arranged inside the insert block. By inserting the insert block into the slot, when the lock tongue passes through the slot, the lock tongue contacts the top surface of the slot, the second telescopic rod and the second spring contract, causing it to drive the lock tongue to move downward and retract into the telescopic groove. When the lock tongue reaches the opening of the slot, the second spring pops out the lock tongue, thereby quickly fixing the mounting plate. Pressing the button causes the button to drive the horizontal plate to compress the first telescopic rod and the first spring to contract downward, causing the pressure block to press downward against the lock tongue, and the mounting plate can be quickly removed, thereby solving the problem of low efficiency in circuit board splicing and disassembly work and causing inconvenience in operation.

[0004] However, in actual use of this technical solution, the lock tongue needs to be equipped with a spring. However, after the circuit board is placed for a long time, the spring structure will oxidize and rust, which will hinder the disassembly of the equipment or affect the connection firmness. In addition, the splicing structure is complex and the production cost is high. Utility Model Content

[0005] The purpose of the present utility model is to address the deficiencies of the prior art and provide a spliced ​​circuit board, which can complete the insertion of the locking groove at the junction of the No. 1 circuit board rack and the No. 2 circuit board rack through the overall C-shaped connecting buckle, and at the same time, both ends are connected by connecting buckles made of flexible memory metal material, so that the connecting buckle has good deformation and recovery functions after deformation, and then by bending the pressure plate, the connecting buckle is driven to deform, so that the positioning protrusion fixedly connected to the connecting buckle near the inner wall of the locking groove can be quickly separated from the positioning groove in the locking groove, thereby completing the rapid connection and disassembly of the No. 1 circuit board rack and the No. 2 circuit board rack, and solving the problem that the circuit board splicing requires springs and spring tongues to be locked with each other for installation and disassembly, the spring and spring tongue structural parts are oxidized and rusted, resulting in obstruction of equipment disassembly or affecting the connection firmness, and the splicing structure is complex and the production cost is high.

[0006] To achieve the above-mentioned objectives, the present invention provides the following technical solution: a spliced ​​circuit board, comprising a No. 1 circuit board rack, a No. 2 circuit board rack being provided at one end of the No. 1 circuit board rack, a connecting mechanism being provided between the No. 2 circuit board rack and the No. 1 circuit board rack, the connecting mechanism being used to connect and fix the No. 2 circuit board rack, the No. 1 circuit board rack and the No. 2 circuit board rack both having circuit boards fixedly connected thereto, a fastening mechanism being provided at the top end of the connection between the No. 1 circuit board rack and the No. 2 circuit board rack, the fastening mechanism being used to improve the connection strength between the No. 1 circuit board rack and the No. 2 circuit board rack.

[0007] Preferably, both ends of the No. 1 circuit board rack and the No. 2 circuit board rack are provided with locking grooves, and both ends of the locking grooves are provided with positioning grooves respectively.

[0008] Preferably, the connecting mechanism includes a connecting frame with a buckle installed inside the locking groove, and both ends of the connecting frame are fixedly connected with connecting buckles. A weakening groove is provided on the outer wall of the connecting buckle. A positioning protrusion is fixedly connected to the side of the connecting buckle close to the inner wall of the locking groove, and a pressure plate is fixedly connected to the side of the connecting buckle away from the inner wall of the locking groove.

[0009] Preferably, a wiring board is fixedly connected inside the connecting frame, and two ends of the wiring board are respectively located in the internal plug-in slots of the No. 1 circuit board frame and the No. 2 circuit board frame.

[0010] Preferably, heat dissipation slots are provided on both sides of the No. 1 circuit board rack and the No. 2 circuit board rack, and dustproof screens are fixedly connected inside the heat dissipation slots.

[0011] Preferably, the fastening mechanism includes a connecting groove opened at the top of the No. 1 circuit board rack and the No. 2 circuit board rack, and a plurality of half-column racks are fixedly connected inside the connecting groove. The plurality of half-column racks are respectively fixedly connected to the top of the No. 1 circuit board rack and the No. 2 circuit board rack. The plurality of half-column racks can form a column after being fitted together, and a pressing plate is snap-fitted inside the connecting groove, and the notch on the surface of the pressing plate is wrapped around the outer wall of the half-column rack.

[0012] Preferably, the connecting buckle is C-shaped as a whole, and both ends of the connecting buckle are made of flexible memory metal material.

[0013] Preferably, the pressure plate is U-shaped, and the pressure plate, the coupling buckle and the positioning protrusion are an integral structure.

[0014] Preferably, the connecting frame is entirely made of resin material, and a ceramic isolation layer is provided at the connection between the connecting frame and the wiring board.

[0015] Preferably, the plug interfaces at both ends of the wiring board match the plug interfaces at both ends of the circuit board.

[0016] The beneficial effects of the present invention are:

[0017] (1) The utility model can form a column by fitting several half-column frames at the top of the No. 1 circuit board rack and the No. 2 circuit board rack together. A buckle plate is installed inside the connecting groove. The groove on the surface of the buckle plate is wrapped around the outer wall of the half-column frame. Several half-column frames are fixedly connected inside the connecting groove. When the No. 1 circuit board rack and the No. 2 circuit board rack are abutted and connected, the several half-column frames at the top of the No. 1 circuit board rack and the No. 2 circuit board rack fit together to form a cylindrical buckle. Then, the buckle plate is used to buckle the cylindrical buckle formed by fitting several half-column frames together, thereby improving the connection tightness between the No. 1 circuit board rack and the No. 2 circuit board rack.

[0018] (2) The utility model can enhance the air circulation effect inside the No. 1 circuit board rack and the No. 2 circuit board rack by fixing the dustproof mesh plates inside the heat dissipation slots on both sides of the No. 1 circuit board rack and the No. 2 circuit board rack, thereby improving the heat dissipation strength of the entire spliced ​​circuit board. At the same time, the setting of the dustproof mesh plates can prevent dust from entering the No. 1 circuit board rack and the No. 2 circuit board rack, causing dust accumulation inside the No. 1 circuit board rack and the No. 2 circuit board rack, resulting in the circuit boards being unable to operate normally and dissipate heat.

[0019] (3) The utility model can complete the insertion of the locking groove at the connection between the No. 1 circuit board rack and the No. 2 circuit board rack through the overall C-shaped connecting buckle. At the same time, both ends of the connecting buckle are made of flexible memory metal material, so that the connecting buckle has good deformation and recovery functions after deformation. Then, by bending the pressure plate, the connecting buckle is driven to deform, and the positioning protrusion fixedly connected to the inner wall of the locking groove of the connecting buckle can be quickly separated from the positioning groove in the locking groove, thereby completing the rapid connection and disassembly of the No. 1 circuit board rack and the No. 2 circuit board rack, meeting the maintenance and replacement needs of the circuit boards.

[0020] In summary, the utility model has the advantages of being able to quickly complete the splicing of circuit boards, simple and convenient installation and disassembly, strong splicing, no need for metal pins such as screws for fixing, and no oxidation of metal pins affecting the normal use of circuit boards. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is a schematic diagram of the overall three-dimensional structure of the utility model;

[0022] Figure 2 This is a schematic diagram of the three-dimensional structure of the No. 1 circuit board rack;

[0023] Figure 3 This is a schematic diagram of the three-dimensional structure of the No. 2 circuit board rack;

[0024] Figure 4 This is a schematic side view of the structure of the No. 1 circuit board rack;

[0025] Figure 5 It is a schematic diagram of the three-dimensional structure of the connecting frame.

[0026] In the figure: 1. Circuit board rack No. 1; 2. Circuit board rack No. 2; 3. Circuit board; 4. Heat dissipation notch; 5. Connecting mechanism; 6. Fastening mechanism; 7. Connecting slot; 8. Half-column rack; 9. Dustproof screen; 10. Locking slot; 11. Positioning slot; 12. Connecting rack; 13. Connecting buckle; 14. Positioning protrusion; 15. Pressing plate; 16. Weakened slot; 17. Terminal block; 18. Pressing plate. DETAILED DESCRIPTION

[0027] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0028] In the description of the present invention, 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 to 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 invention 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 should not be understood as a limitation on the present invention.

[0029] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features being referred to. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of such features. In the description of this utility model, "plurality" means two or more, unless otherwise specifically defined.

[0030] Example 1

[0031] like Figure 1As shown, this embodiment provides a spliced ​​circuit board, including a No. 1 circuit board rack 1, a No. 2 circuit board rack 2 is provided at one end of the No. 1 circuit board rack 1, a connecting mechanism 5 is provided between the No. 2 circuit board rack 2 and the No. 1 circuit board rack 1, and the connecting mechanism 5 is used to connect and fix the No. 2 circuit board rack 2. The No. 1 circuit board rack 1 and the No. 2 circuit board rack 2 are both fixedly connected with circuit boards 3 inside. A fastening mechanism 6 is provided at the top of the connection between the No. 1 circuit board rack 1 and the No. 2 circuit board rack 2. The fastening mechanism 6 is used to improve the connection strength between the No. 1 circuit board rack 1 and the No. 2 circuit board rack 2.

[0032] By means of the connecting mechanism 5 provided between the second circuit board rack 2 and the first circuit board rack 1, the second circuit board rack 2 and the first circuit board rack 1 can be quickly connected and the chip connected, thereby meeting the requirements of circuit board splicing. At the same time, the fastening mechanism 6 provided at the top of the connection between the first circuit board rack 1 and the second circuit board rack 2 facilitates improving the connection strength between the first circuit board rack 1 and the second circuit board rack 2, thereby preventing the occurrence of separation due to force.

[0033] like Figures 1 to 5 As shown, both ends of the No. 1 circuit board rack 1 and the No. 2 circuit board rack 2 are provided with locking grooves 10, and the two ends of the locking grooves 10 are respectively provided with positioning grooves 11. The connecting mechanism 5 includes a connecting frame 12 installed inside the locking grooves 10 with a buckle, and both ends of the connecting frame 12 are fixedly connected with a connecting buckle 13. The outer wall of the connecting buckle 13 is provided with a weakening groove 16. The connecting buckle 13 is fixedly connected to a positioning protrusion 14 on the side close to the inner wall of the locking groove 10, and the connecting buckle 13 is fixedly connected to a pressure plate 15 on the side away from the inner wall of the locking groove 10. The locking groove 10 between the circuit board rack 1 and the second circuit board rack 2 can be plugged into the connecting frame 12, and the connecting frame 12 is used to complete the quick connection between the first circuit board rack 1 and the second circuit board rack 2. At the same time, the connecting buckles 13 fixedly connected at both ends of the connecting frame 12 and the positioning protrusions 14 fixedly connected to the side of the inner wall of the locking groove 10 of the connecting buckle 13 can cooperate with the positioning grooves 11 respectively opened at both ends of the locking groove 10 to complete the positioning and locking of the connecting frame 12, thereby completing the connection and fixation of the first circuit board rack 1 and the second circuit board rack 2.

[0034] like Figure 3 and Figure 5 As shown, a terminal block 17 is fixedly connected to the interior of the connecting frame 12, and the two ends of the terminal block 17 are respectively located in the internal plug-in slots of the No. 1 circuit board rack 1 and the No. 2 circuit board rack 2. The connection between the circuit boards 3 installed in the No. 1 circuit board rack 1 and the No. 2 circuit board rack 2 can be completed through the terminal block 17 fixedly connected to the interior of the connecting frame 12.

[0035] like Figures 1 to 3As shown, heat dissipation slots 4 are provided on both sides of the No. 1 circuit board rack 1 and the No. 2 circuit board rack 2, and dustproof screens 9 are fixedly connected inside the heat dissipation slots 4. The dustproof screens 9 fixedly connected inside the heat dissipation slots 4 on both sides of the No. 1 circuit board rack 1 and the No. 2 circuit board rack 2 can enhance the gas circulation effect inside the No. 1 circuit board rack 1 and the No. 2 circuit board rack 2, thereby improving the heat dissipation strength of the entire spliced ​​circuit board. At the same time, the provision of the dustproof screens 9 can prevent dust from entering the No. 1 circuit board rack 1 and the No. 2 circuit board rack 2, causing dust accumulation inside the No. 1 circuit board rack 1 and the No. 2 circuit board rack 2, resulting in the circuit boards being unable to operate normally and dissipate heat.

[0036] like Figures 1 to 3 As shown, the fastening mechanism 6 includes a connecting groove 7 opened at the top of the No. 1 circuit board rack 1 and the No. 2 circuit board rack 2, and a plurality of half-column racks 8 are fixedly connected inside the connecting groove 7. The plurality of half-column racks 8 are respectively fixedly connected to the top of the No. 1 circuit board rack 1 and the No. 2 circuit board rack 2. The plurality of half-column racks 8 can form a column after being fitted together, and a pressing plate 18 is snap-fitted inside the connecting groove 7. The notch on the surface of the pressing plate 18 is wrapped around the outer wall of the half-column rack 8. Through the plurality of half-column racks 8 fixedly connected inside the connecting groove 7, when the No. 1 circuit board rack 1 and the No. 2 circuit board rack 2 are abutted and connected, the plurality of half-column racks 8 at the top of the No. 1 circuit board rack 1 and the No. 2 circuit board rack 2 can fit together to form a cylindrical buckle, and then cooperate with the pressing plate 18 to buckle the cylindrical buckle formed by the plurality of half-column racks 8 fitting together, thereby improving the connection tightness of the No. 1 circuit board rack 1 and the No. 2 circuit board rack 2.

[0037] like Figure 3 and Figure 5 As shown, the connecting buckle 13 is C-shaped as a whole, and both ends of the connecting buckle 13 are made of flexible memory metal material. The pressure plate 15 is set in a U shape, and the pressure plate 15, the connecting buckle 13 and the positioning protrusion 14 are an integrated structure. The connecting buckle 13 with a C shape as a whole can complete the insertion of the locking groove 10 at the connection between the No. 1 circuit board rack 1 and the No. 2 circuit board rack 2. At the same time, both ends of the connecting buckle 13 are made of flexible memory metal material, so that the connecting buckle 13 has good deformation and recovery functions after deformation. Then, by bending the pressure plate 15, the connecting buckle 13 is driven to deform, so that the positioning protrusion 14 fixedly connected to the inner wall of the locking groove 10 of the connecting buckle 13 can be quickly separated from the positioning groove 11 in the locking groove 10, thereby completing the rapid connection and disassembly of the No. 1 circuit board rack 1 and the No. 2 circuit board rack 2, meeting the maintenance and replacement needs of the circuit boards.

[0038] like Figure 5As shown, the connecting frame 12 is made of resin material as a whole, and a ceramic isolation layer is provided at the connection between the connecting frame 12 and the terminal board 17. The connecting frame 12 is made of resin material as a whole, has low production cost and is easy to maintain and replace. In addition, the ceramic isolation layer provided at the connection between the connecting frame 12 and the terminal board 17 has heat insulation and insulating functions, which prevents the terminal board 17 from generating heat and leakage during operation and affecting the use of the entire circuit board.

[0039] like Figure 5 As shown, the plug interfaces at both ends of the wiring board 17 match the plug interfaces at both ends of the circuit board 3. The wiring board 17 with the plug interfaces at both ends matching the plug interfaces at both ends of the circuit board 3 can complete the quick connection of the internal circuit boards of the No. 1 circuit board rack 1 and the No. 2 circuit board rack 2.

[0040] Working steps

[0041] Step 1: Fix the circuit board 3 to the inside of the No. 1 circuit board rack 1 and the No. 2 circuit board rack 2 respectively, and then insert the connecting frame 12 into the locking groove 10 at one end of the No. 1 circuit board rack 1, and then align the locking groove 10 at one end of the No. 2 circuit board rack 2 with the connecting frame 12, push the No. 2 circuit board rack 2 to move, so that the No. 2 circuit board rack 2 fits the No. 1 circuit board rack 1, and then make the other side of the locking groove 10 snap into the No. 2 circuit board rack 2 to complete the connection between the No. 1 circuit board rack 1 and the No. 2 circuit board rack 2. In the process of connecting the No. 1 circuit board rack 1 and the No. 2 circuit board rack 2, the connecting frame 12 is fixedly connected to the connecting frame 12. The wire board 17 can be inserted into the No. 1 circuit board rack 1 and the No. 2 circuit board rack 2, thereby connecting with the plug connector of the circuit board 3 to complete the splicing operation of the entire spliced ​​circuit board. When the No. 1 circuit board rack 1 and the No. 2 circuit board rack 2 are connected, the several semi-column racks 8 at the top of the No. 1 circuit board rack 1 and the No. 2 circuit board rack 2 will fit together to form a cylindrical buckle, and then the pressing plate 18 is buckled into the connection groove 7, and the cylindrical buckle formed by the several semi-column racks 8 fitting together is buckled, thereby locking the No. 1 circuit board rack 1 and the No. 2 circuit board rack 2, improving the connection tightness of the No. 1 circuit board rack 1 and the No. 2 circuit board rack 2.

[0042] Step 2: When the entire circuit board needs to be separated and disassembled, first remove the pressing plate 18 inside the connecting groove 7, then bend the pressure plate 15 to cause the connecting buckle 13 to deform, so that the positioning protrusion 14 fixedly connected to the inner wall of the locking groove 10 of the connecting buckle 13 can be quickly disengaged from the positioning groove 11 in the locking groove 10, thereby completing the rapid connection and disassembly of the No. 1 circuit board rack 1 and the No. 2 circuit board rack 2.

[0043] During use of the entire device, the dustproof mesh plate 9 fixedly connected to the heat dissipation slots 4 on both sides of the No. 1 circuit board rack 1 and the No. 2 circuit board rack 2 can enhance the air circulation effect inside the No. 1 circuit board rack 1 and the No. 2 circuit board rack 2, thereby improving the heat dissipation strength of the entire spliced ​​circuit board. At the same time, the provision of the dustproof mesh plate 9 can prevent dust from entering the No. 1 circuit board rack 1 and the No. 2 circuit board rack 2, causing dust accumulation inside the No. 1 circuit board rack 1 and the No. 2 circuit board rack 2, resulting in the circuit boards being unable to operate normally and dissipate heat. A number of semi-column racks 8 can be formed by fitting together. A pressing plate 18 is installed with a snap fit inside the connecting groove 7. The notch on the surface of the pressing plate 18 is wrapped around the outer wall of the semi-column rack 8. Through a number of semi-column racks 8 fixedly connected inside the connecting groove 7, when the No. 1 circuit board rack 1 and the No. 2 circuit board rack 2 are abutted and connected, the No. 1 circuit board rack 1 and the No. 2 circuit board rack The several semi-column frames 8 at the top of the road plate frame 2 fit together to form a cylindrical buckle, and then cooperate with the pressing plate 18 to buckle the cylindrical buckle formed by the several semi-column frames 8 fitting together, thereby improving the connection tightness of the No. 1 circuit board frame 1 and the No. 2 circuit board frame 2. The overall C-shaped connecting buckle 13 can complete the insertion of the locking groove 10 at the connection between the No. 1 circuit board frame 1 and the No. 2 circuit board frame 2. At the same time, both ends of the connecting buckle 13 are made of flexible memory metal material, so that the connecting buckle 13 has good deformation and recovery functions after deformation, and then by bending the pressure plate 15, the connecting buckle 13 is driven to deform, so that the positioning protrusion 14 fixedly connected to the inner wall of the locking groove 10 of the connecting buckle 13 can be quickly separated from the positioning groove 11 in the locking groove 10, thereby completing the rapid connection and disassembly of the No. 1 circuit board frame 1 and the No. 2 circuit board frame 2, meeting the maintenance and replacement needs of the circuit boards.

[0044] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent replacements and improvements made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A spliced ​​circuit board, characterized in that: It includes a No. 1 circuit board rack, a No. 2 circuit board rack is provided at one end of the No. 1 circuit board rack, and a connecting mechanism is provided between the No. 2 circuit board rack and the No. 1 circuit board rack, and the connecting mechanism is used to connect and fix with the No. 2 circuit board rack; The first circuit board rack and the second circuit board rack are both fixedly connected with circuit boards; A fastening mechanism is provided at the top end of the connection between the first circuit board rack and the second circuit board rack, and the fastening mechanism is used to improve the connection strength between the first circuit board rack and the second circuit board rack.

2. A spliced ​​circuit board according to claim 1, characterized in that: Both ends of the No. 1 circuit board rack and the No. 2 circuit board rack are provided with locking grooves, and both ends of the locking grooves are respectively provided with positioning grooves.

3. A spliced ​​circuit board according to claim 2, characterized in that: The connecting mechanism includes a connecting frame with a buckle installed inside the lock groove, and both ends of the connecting frame are fixedly connected with connecting buckles. A weakening groove is provided on the outer wall of the connecting buckle. A positioning protrusion is fixedly connected to the side of the connecting buckle close to the inner wall of the lock groove, and a pressure plate is fixedly connected to the side of the connecting buckle away from the inner wall of the lock groove.

4. A spliced ​​circuit board according to claim 3, characterized in that: A wiring board is fixedly connected inside the connection frame, and two ends of the wiring board are respectively located in the internal plug-in slots of the No. 1 circuit board frame and the No. 2 circuit board frame.

5. The spliced ​​circuit board according to claim 1, characterized in that: Both sides of the No. 1 circuit board rack and the No. 2 circuit board rack are provided with heat dissipation slots, and dustproof screens are fixedly connected inside the heat dissipation slots.

6. The spliced ​​circuit board according to claim 1, characterized in that: The fastening mechanism includes a connecting groove opened at the top of the No. 1 circuit board rack and the No. 2 circuit board rack, and a plurality of half-column racks are fixedly connected inside the connecting groove. The plurality of half-column racks are respectively fixedly connected to the top of the No. 1 circuit board rack and the No. 2 circuit board rack. The plurality of half-column racks can form a column after being fitted together. A pressing plate is snap-fitted inside the connecting groove, and the notch on the surface of the pressing plate is wrapped around the outer wall of the half-column rack.

7. The spliced ​​circuit board according to claim 3, characterized in that: The connecting buckle is C-shaped as a whole, and both ends of the connecting buckle are made of flexible memory metal material.

8. The spliced ​​circuit board according to claim 3, characterized in that: The pressure plate is U-shaped, and the pressure plate, the coupling buckle and the positioning protrusion are an integrated structure.

9. The spliced ​​circuit board according to claim 4, characterized in that: The connecting frame is made entirely of resin material, and a ceramic isolation layer is provided at the connection between the connecting frame and the wiring board.

10. The spliced ​​circuit board according to claim 4, characterized in that: The plug-in interfaces at both ends of the wiring board match the plug-in interfaces at both ends of the circuit board.

Images