Multilayer circuit board

Abstract

The utility model relates to the technical field of circuit boards, and discloses a multilayer circuit board comprising a mounting plate, the upper side of the mounting plate is provided with a multilayer distributed circuit board, the interior of the mounting plate is fixedly connected with a plurality of mounting housings, the interior of each mounting housing is slidably connected with a spacing ring, and the spacing rings are fixedly connected with the mounting housings. The top end of the limiting ring is fixedly connected with a tension spring, the other end of the tension spring is fixedly connected to the interior of the mounting shell, the bottom end of the limiting ring is rotationally connected with a rotating ring, the interior of the rotating ring is fixedly connected with a connecting column, and the top end of the connecting column is fixedly connected with a clamping block; and the top end of the mounting plate is fixedly connected with a fixing mechanism. According to the utility model, the internal sliding block is separated from the limiting groove and enters the sliding groove, and is pulled back by the tension spring, so that the circuit board can be conveniently mounted on the mounting plate, the bolt mounting time is saved, the time and the labor are saved, the equipment is detected, and the working efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of circuit boards, in particular to a multi-layer circuit board. Background Technique

[0002] A multi-layer circuit board is based on a single-sided or double-sided circuit board. On an insulating material, one or more conductive patterns are stacked. Through hot pressing and transfer, an inner-layer circuit board is formed. Then, through a registration system for positioning, prefabrication of holes, and lamination technology, these circuit boards are aggregated together to form a composite board.

[0003] After retrieval, Chinese Patent Publication No.: CN219960929U discloses a multi-layer circuit board, including a main substrate. On both sides and both ends of the main substrate, a first fixing plate and a second fixing plate in a "T" shape are symmetrically arranged. In the middle of the upper surfaces of the first fixing plate and the second fixing plate, a locking toggle in a "匚" shape is inserted through. On the upper surface of the main substrate, a first substrate is provided, and on the lower surface of the main substrate, a second substrate is provided. At the four corners of the first substrate and the second substrate, a limiting rod and a bidirectional screw are inserted in an inclined symmetrical state respectively. Threads are provided on the outer surface of the limiting rod, and screw sleeves are sleeved at both ends of the limiting rod. Limiting sleeves are provided at the contact positions of the first substrate and the second substrate with the bidirectional screw. The design of this device is reasonable, which can make the circuit boards achieve a tight connection and at the same time achieve the effect of mutual separation, which is beneficial to separate and repair the circuit boards when the internal circuits are damaged after being stacked and used. It fails to solve the problem that the circuit board needs to be installed by screwing multiple bolts to be conveniently installed on the mounting plate, which is time-consuming and laborious. If it is necessary to return to install and remove multiple times, it not only delays the installation and detection time, but also reduces the work efficiency. Summary of the Utility Model

[0004] In order to make up for the above deficiencies, the utility model provides a multi-layer circuit board, aiming to improve the problem in the prior art that the circuit board needs to be installed by screwing multiple bolts to be conveniently installed on the mounting plate, which is time-consuming and laborious.

[0005] In order to achieve the above purpose, the utility model adopts the following technical scheme: A multi-layer circuit board, including a mounting plate, on the upper side of the mounting plate, there are multiple layers of distributed circuit boards. Inside the mounting plate, a plurality of mounting housings are fixedly connected. Inside the mounting housing, a limiting ring is slidably connected. At the top end of the limiting ring, a tension spring is fixedly connected, and the other end of the tension spring is fixedly connected inside the mounting housing. At the bottom end of the limiting ring, a rotating ring is rotatably connected. Inside the rotating ring, a connecting column is fixedly connected. At the top end of the connecting column, a clamping block is fixedly connected. At the top end of the mounting plate, a fixing mechanism is fixedly connected.

[0006] As a further description of the above technical solution:

[0007] The fixing mechanism includes an external fixing block, the outside of the external fixing block is fixedly connected to the outside of the mounting plate, the inside of the external fixing block is slidably connected to an external fixing shell, the inside of the external fixing shell is slidably connected to a limiting block, the top end of the limiting block is fixedly connected to a thrust spring, and the lower end of the limiting block is fixedly connected to a mounting column.

[0008] As a further description of the above technical solution:

[0009] The outside of the limit block is fixedly connected with a pulling linkage block, and the outside of the pulling linkage block is slidably connected to the outside of the limit block.

[0010] As a further description of the above technical solution:

[0011] The bottom end of the mounting column is slidably connected to the inside of the external fixing block, the bottom end of the mounting column is slidably connected to the inside of the mounting plate, and the rear end of the external fixing shell is fixedly connected with a dust-proof fixing shell.

[0012] As a further description of the above technical solution:

[0013] A mounting groove is provided inside the mounting plate, and the bottom end of the dust-proof fixing shell is rotatably connected to the top end of the mounting plate.

[0014] As a further description of the above technical solution:

[0015] The outer portion of the connection column is slidably connected to the inner portion of the multi-layer distribution circuit board, and the outer portion of the clamping block is slidably connected to the inner portion of the multi-layer distribution circuit board.

[0016] As a further description of the above technical solution:

[0017] A sliding groove is provided inside the installation shell, and a limiting groove is provided inside the installation shell.

[0018] As a further description of the above technical solution:

[0019] The outer portion of the rotating ring is fixedly connected with an inner sliding block, and the outer portion of the inner sliding block is slidably connected to the inner portion of the mounting housing.

[0020] The utility model has the following beneficial effects:

[0021] 1. In the utility model, the rotating connecting column is realized through the structures such as the mounting plate, the multi-layer distributed circuit board, and the mounting shell, so that the internal sliding block is separated from the limit groove and slides inside the groove. After being pulled back by the tension spring, the circuit board is conveniently installed on the mounting plate, which saves time for bolt installation, saves time and effort, and improves work efficiency for equipment inspection.

[0022] 2. In the utility model, through the external fixing block, the external fixing shell, the limit block and other structures, it is achieved that the linkage block is pulled upward to drive the mounting column to move upward, so that the mounting column is separated from the inside of the mounting plate, thereby preventing dust from entering the inside of the circuit board, thereby causing dust to enter the inside of the device and affect the normal operation of the device. Therefore, the inside of the circuit board is protected from damage by dust. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 A three-dimensional schematic diagram of a multi-layer circuit board proposed by the utility model;

[0024] Figure 2 A schematic diagram of a multi-layer distributed circuit board in a multi-layer circuit board proposed by the utility model;

[0025] Figure 3 This is a cross-sectional view of a housing installed in a multi-layer circuit board proposed by the utility model;

[0026] Figure 4 A schematic diagram of a sliding slot in a multi-layer circuit board proposed by the utility model;

[0027] Figure 5 The present invention is a schematic diagram of an external fixed housing in a multi-layer circuit board.

[0028] Legend:

[0029] 1. Mounting plate; 2. Multi-layer distributed circuit board; 3. Mounting shell; 4. Limiting ring; 5. Tension spring; 6. Rotating ring; 7. Connecting column; 8. Clamping block; 9. Fixing mechanism; 901. External fixing block; 902. External fixing shell; 903. Limiting block; 904. Thrust spring; 905. Mounting column; 906. Pull linkage block; 10. Mounting slot; 11. Dust-proof fixing shell; 12. Sliding slot; 13. Limiting slot; 14. Internal sliding block. DETAILED DESCRIPTION

[0030] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0031] Reference Figure 1-3The utility model provides an embodiment: a multi-layer circuit board, comprising a mounting plate 1, a multi-layer distributed circuit board 2 is arranged on the upper side of the mounting plate 1, a plurality of mounting shells 3 are fixedly connected inside the mounting plate 1, a limiting ring 4 is slidably connected inside the mounting shell 3 to fix the inside, a tension spring 5 is fixedly connected to the top of the limiting ring 4, the other end of the tension spring 5 is fixedly connected to the inside of the mounting shell 3, and the connecting column 7 inside the mounting shell 3 is rotated so that the tension spring 5 pulls the connecting column 7 through the rotating ring 6. The rotation of the connecting column 7 drives the rotation of the clamping block 8, so that the clamping block 8 is driven by the tension spring 5 to move upward, thereby facilitating the removal of the multi-layer distributed circuit board 2, the bottom end of the limiting ring 4 is rotatably connected to the rotating ring 6, the inside of the rotating ring 6 is fixedly connected to the connecting column 7, the top of the connecting column 7 is fixedly connected to the clamping block 8, and the connecting column 7 drives the clamping block 8 to move, so that the rotating ring 6 is limited, and the top of the mounting plate 1 is fixedly connected to the fixing mechanism 9 to fix the fixing mechanism 9.

[0032] Reference Figure 4 A mounting groove 10 is provided inside the mounting plate 1 to prevent dust. The bottom end of the fixed shell 11 is rotatably connected to the top of the mounting plate 1 to increase the internal dust prevention and installation. The outside of the connecting column 7 is slidably connected to the inside of the multi-layer distributed circuit board 2. The outside of the clamping block 8 is slidably connected to the inside of the multi-layer distributed circuit board 2. A sliding groove 12 is provided inside the mounting shell 3. A limiting groove 13 is provided inside the mounting shell 3 to facilitate the movement of the internal sliding block 14 inside. The outside of the rotating ring 6 is fixedly connected to the internal sliding block 14. The outside of the internal sliding block 14 is slidably connected to the inside of the mounting shell 3, which facilitates the rotating ring 6 to drive the internal sliding block 14 to move.

[0033] Reference Figure 5 The fixing mechanism 9 includes an external fixing block 901, the external fixing block 901 is fixedly connected to the outside of the mounting plate 1, the internal sliding connection of the external fixing block 901 is provided with an external fixing shell 902, the internal sliding connection of the external fixing shell 902 is provided with a limiting block 903 to complete the internal fixing, the top of the limiting block 903 is fixedly connected with a thrust spring 904, the lower end of the limiting block 903 is fixedly connected with a mounting column 905, the external fixing connection of the limiting block 903 is provided with a pulling linkage block 906, the external sliding connection of the pulling linkage block 906 is provided with the external sliding connection of the limiting block 903, so that the pulling linkage block 906 can slide the mounting column 905 out of the mounting plate 1, so as to turn to the dust-proof fixing shell 11 to disassemble the internal part, the bottom end of the mounting column 905 is slidably connected to the inside of the external fixing block 901, the bottom end of the mounting column 905 is slidably connected to the inside of the mounting plate 1, and the rear end of the external fixing shell 902 is fixedly connected with the dust-proof fixing shell 11 to strengthen the stability of the internal operation.

[0034] Working principle: First, rotate the connecting column 7 to disengage the inner sliding block 14 of the rotating ring 6 from the sliding groove 12 and enter the limiting groove 13, so that the tension spring 5 pulls the limiting ring 4, the rotating ring 6, the connecting column 7, and the clamping block 8 to move upward. Because the clamping block 8 is rotated by the connecting column 7, the clamping block 8 is aligned with the notch of the multi-layer distributed circuit board 2, so that the multi-layer distributed circuit board 2 is taken out. Conversely, after the multi-layer distributed circuit board 2 is inserted, the connecting column 7 is pulled to align with the limiting groove 13 and then released, so that the inner sliding block 14 of the rotating ring 6 enters the limiting groove due to the tension of the tension spring 5. The inside of the groove 13, thereby fixing the multi-layer distributed circuit board 2, saving the time of bolt installation, and avoiding multiple installation and disassembly, which is time-consuming and labor-intensive, convenient for detection, and improves work efficiency. Pull the pulling linkage block 906 without letting go, rotate the dust prevention fixing shell 11, and fit the dust prevention fixing shell 11 with the mounting plate 1, loosen the pulling linkage block 906, and the pulling linkage block 906 is pushed into the interior of the mounting plate 1 by the thrust spring 904 to complete the engagement, thereby preventing dust from entering the interior of the equipment and affecting the normal operation of the equipment. Therefore, the inside of the circuit board is protected from damage by dust.

[0035] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A multilayer circuit board, comprising a mounting plate (1), characterized in that: A multi-layer distributed circuit board (2) is arranged on the upper side of the mounting plate (1); a plurality of mounting shells (3) are fixedly connected inside the mounting plate (1); a limit ring (4) is slidably connected inside the mounting shell (3); a tension spring (5) is fixedly connected to the top end of the limit ring (4); the other end of the tension spring (5) is fixedly connected to the inside of the mounting shell (3); a rotating ring (6) is rotatably connected to the bottom end of the limit ring (4); a connecting column (7) is fixedly connected inside the rotating ring (6); a clamping block (8) is fixedly connected to the top end of the connecting column (7); and a fixing mechanism (9) is fixedly connected to the top end of the mounting plate (1).

2. A multi-layer circuit board according to claim 1, characterized in that: The fixing mechanism (9) comprises an external fixing block (901), the outside of the external fixing block (901) is fixedly connected to the outside of the mounting plate (1), the inside of the external fixing block (901) is slidably connected to an external fixing shell (902), the inside of the external fixing shell (902) is slidably connected to a limit block (903), the top end of the limit block (903) is fixedly connected to a thrust spring (904), and the bottom end of the limit block (903) is fixedly connected to a mounting column (905).

3. A multi-layer circuit board according to claim 2, characterized in that: The outside of the limit block (903) is fixedly connected to a pulling linkage block (906), and the outside of the pulling linkage block (906) is slidably connected to the outside of the limit block (903).

4. A multi-layer circuit board according to claim 2, characterized in that: The bottom end of the mounting column (905) is slidably connected to the inside of the external fixing block (901), the bottom end of the mounting column (905) is slidably connected to the inside of the mounting plate (1), and the rear end of the external fixing shell (902) is fixedly connected to a dust-proof fixing shell (11).

5. A multi-layer circuit board according to claim 4, characterized in that: A mounting groove (10) is provided inside the mounting plate (1), and the bottom end of the dust-proof fixing shell (11) is rotatably connected to the top end of the mounting plate (1).

6. A multi-layer circuit board according to claim 1, characterized in that: The outside of the connection column (7) is slidably connected to the inside of the multi-layer distribution circuit board (2), and the outside of the clamping block (8) is slidably connected to the inside of the multi-layer distribution circuit board (2).

7. A multi-layer circuit board according to claim 1, characterized in that: A sliding groove (12) is provided inside the installation shell (3), and a limiting groove (13) is provided inside the installation shell (3).

8. The multi-layer circuit board according to claim 1, characterized in that: The exterior of the rotating ring (6) is fixedly connected to an internal sliding block (14), and the exterior of the internal sliding block (14) is slidably connected to the interior of the mounting housing (3).

Images