PCB multilayer board with blind hole structure

Abstract

The utility model relates to the technical field of PCBs, and discloses a multi-layer PCB with a blind hole structure, a fixing device is composed of a strip-shaped block, a first moving rod, a first spring, a first fixing ring, a first fixing block, a first top plate, a base, a connecting rod, a second fixing block, a second moving rod, a second fixing ring and a second spring. The strip-shaped block is arranged outside the PCB multilayer board body, the first moving rod is slidably installed in the strip-shaped block, and the first spring is connected to the surface of the first moving rod in a sleeving mode. According to the multi-layer PCB containing the blind hole structure, a first top plate can move downwards to be reset under the action of a first spring by pulling a pull ring, a multi-layer PCB body is placed in a placement groove, a second fixing block can be reset under the action of a second spring by loosening the pull ring, the multi-layer PCB body can be fixed through cooperation of a strip-shaped block and the first top plate, and the multi-layer PCB containing the blind hole structure is convenient to use. And the PCB multilayer board body is convenient to disassemble and assemble.

Description

TECHNICAL FIELD

[0001] The utility model relates to PCB board technical field, concretely is a kind of PCB multilayer board containing blind hole structure. BACKGROUND

[0002] PCB multilayer board is a kind of printed circuit board, with the structure of multilayer, is important electronic component, is used for the installation of electronic components, is the carrier of electrical interconnection of electronic components, is applied to various electronic use occasions.

[0003] The current installation and fixation of PCB multilayer board generally rely on the traditional method of screw assembly. Since the test link often needs to disassemble and reinstall PCB multilayer board for many times, frequent operation of screw becomes a difficult task. Each time of disassembly and installation, the operator not only needs to spend a lot of time on aligning screw hole and screwing screw, and the operation process is complicated. More difficult is that accurate control of screwing force becomes a big problem. If the force is slightly insufficient, the multilayer board is easy to loosen and displace during subsequent operation, influenced by equipment operation vibration, daily handling collision, etc., and then causes poor contact, which interferes with the stable operation of the entire circuit system; on the contrary, if the force is too tight, the fragile PCB board may not withstand the pressure, and cracks and damage may occur, resulting in the scrap of the entire board. It cannot meet the current demand. UTILITY MODEL CONTENT

[0004] The utility model aims at providing a kind of PCB multilayer board containing blind hole structure to solve the problems raised in the above background.

[0005] To achieve the above object, the utility model provides the following technical scheme: a kind of PCB multilayer board containing blind hole structure, including PCB multilayer board body, the outside of the PCB multilayer board body is provided with fixing device, the inside of the fixing device is provided with mounting device.

[0006] The fixing device is composed of a bar-shaped block, a first moving rod, a first spring, a first fixed ring, a first fixed block, a first top plate, a base, a connecting rod, a second fixed block, a second moving rod, a second fixed ring and a second spring, the bar-shaped block is arranged on the outside of the PCB multilayer board body, the first moving rod is slidingly installed in the inside of the bar-shaped block, the first spring is sleeved on the surface of the first moving rod, the first fixed ring is fixedly installed on the surface of the first moving rod, the first fixed block is fixedly installed on the bottom of the first moving rod, the first top plate is fixedly installed on the top of the first moving rod, the base is fixedly installed on the bottom of the bar-shaped block, the connecting rod is slidingly installed in the inside of the base, the second fixed block is fixedly installed on the side surface of the connecting rod, the second moving rod is fixedly installed on the side surface of the connecting rod, the second fixed ring is fixedly installed on the surface of the second moving rod, and the second spring is sleeved on the surface of the second moving rod.

[0007] The mounting device consists of a sliding rod, a sliding sleeve, and a mounting angle. The sliding rod is fixedly installed inside the base, the sliding sleeve is slidably installed on the surface of the sliding rod, and the mounting angle is fixedly installed on the side of the sliding sleeve.

[0008] Preferably, the surface of the PCB multilayer board body is provided with blind holes.

[0009] Preferably, the strip block has a placement groove inside, and the first top plate is located inside the placement groove. The PCB multilayer board body can be fixed by the cooperation of the strip block and the first top plate.

[0010] Preferably, one end of the first spring abuts against the strip block, and the other end of the first spring abuts against the first fixing ring, and the first spring is provided for resetting the first fixing ring.

[0011] Preferably, the opposing surfaces of the first fixing block and the second fixing block are both set as inclined surfaces, which allows the first fixing block to slide on the surface of the second fixing block.

[0012] Preferably, one end of the second spring abuts against the base, and the other end of the second spring abuts against the second fixed ring, and the second spring is provided for resetting the second fixed ring.

[0013] Preferably, a pull ring is fixedly installed on the side of the second movable rod, which can drive the second movable rod to move.

[0014] Compared with the prior art, the beneficial effects of this utility model are: the PCB multilayer board with blind hole structure can be moved downward and reset by pulling the pull ring under the action of the first spring, so that the PCB multilayer board body can be placed into the placement groove. When the pull ring is released, the second fixing block can be reset under the action of the second spring. The PCB multilayer board body can be fixed by the cooperation of the strip block and the first top plate, and the PCB multilayer board body can be easily disassembled and assembled. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0016] Figure 2 This is a schematic diagram of the first top plate, base, and connecting rod structure of this utility model;

[0017] Figure 3 This utility model Figure 2 Enlarged structural diagram at point A in the middle;

[0018] Figure 4 This is a schematic diagram of the first moving rod, the first spring, and the first fixing ring of this utility model.

[0019] In the diagram: 1. PCB multilayer board body; 2. Fixing device; 201. Strip block; 202. First moving rod; 203. First spring; 204. First fixing ring; 205. First fixing block; 206. First top plate; 207. Base; 208. Connecting rod; 209. Second fixing block; 210. Second moving rod; 211. Second fixing ring; 212. Second spring; 3. Mounting device; 301. Sliding rod; 302. Sliding sleeve; 303. Mounting angle. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0021] Please see Figures 1-4 This utility model provides a technical solution: a PCB multilayer board with a blind hole structure, including a PCB multilayer board body 1, a fixing device 2 is provided on the outside of the PCB multilayer board body 1, blind holes are opened on the surface of the PCB multilayer board body 1, and an installation device 3 is provided inside the fixing device 2.

[0022] The fixing device 2 consists of a strip block 201, a first moving rod 202, a first spring 203, a first fixing ring 204, a first fixing block 205, a first top plate 206, a base 207, a connecting rod 208, a second fixing block 209, a second moving rod 200, a second fixing ring 211, and a second spring 212. The strip block 201 is disposed on the outside of the PCB multilayer board body 1, the first moving rod 202 is slidably installed inside the strip block 201, and the first spring 203 is sleeved on the first moving rod 209. On the surface of the first moving rod 202, a first fixing ring 204 is fixedly installed on the surface of the first moving rod 202. One end of the first spring 203 abuts against the strip block 201, and the other end of the first spring 203 abuts against the first fixing ring 204. The first spring 203 is provided to reset the first fixing ring 204. A first fixing block 205 is fixedly installed on the bottom of the first moving rod 202. A first top plate 206 is fixedly installed on the top of the first moving rod 202. A placement groove is opened inside the strip block 201. Located inside the placement slot, the PCB multilayer board body 1 can be fixed by the cooperation of the strip block 201 and the first top plate 206. The base 207 is fixedly installed at the bottom of the strip block 201, the connecting rod 208 is slidably installed inside the base 207, and the second fixing block 209 is fixedly installed on the side of the connecting rod 208. The opposing surfaces of the first fixing block 205 and the second fixing block 209 are both set as inclined surfaces. This setting allows the first fixing block 205 to slide on the surface of the second fixing block 209. Rod 210 is fixedly installed on the side of connecting rod 208. A pull ring is fixedly installed on the side of the second moving rod 210. The pull ring can drive the second moving rod 210 to move. The second fixed ring 211 is fixedly installed on the surface of the second moving rod 210. The second spring 212 is sleeved on the surface of the second moving rod 210. One end of the second spring 212 abuts against the base 207, and the other end of the second spring 212 abuts against the second fixed ring 211. The second spring 212 is provided to reset the second fixed ring 211.

[0023] The mounting device 3 consists of a sliding rod 301, a sliding sleeve 302, and a mounting angle 303. The sliding rod 301 is fixedly installed inside the base 207, the sliding sleeve 302 is slidably installed on the surface of the sliding rod 301, and the mounting angle 303 is fixedly installed on the side of the sliding sleeve 302. By moving the mounting angle 303, the sliding sleeve 302 can slide on the surface of the sliding rod 301, which facilitates the installation and use of the base 207 in different situations.

[0024] In use, move the mounting angle 303 to fix the base 207 to the external device. Pull the pull ring to move the second moving rod 210, which in turn moves the second fixing block 209 on the side of the connecting rod 208. Under the action of the first spring 203, the first moving rod 202 can move the first fixing block 205 and the first top plate 206 downward to reset. Place the PCB multilayer board body 1 into the placement slot. Release the pull ring. Under the action of the second spring 212, the second moving rod 210 can move the second fixing block 209 on the side of the connecting rod 208 to reset. The first fixing block 205 can move the first moving rod 202 upward. The PCB multilayer board body 1 can be fixed by the cooperation of the strip block 201 and the first top plate 206.

[0025] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0026] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention.

Claims

1. A PCB multilayer board with a blind via structure, comprising a PCB multilayer board body (1), characterized in that: The PCB multilayer board body (1) is provided with a fixing device (2) on the outside, and the fixing device (2) is provided with an installation device (3) inside. The fixing device (2) consists of a strip block (201), a first moving rod (202), a first spring (203), a first fixing ring (204), a first fixing block (205), a first top plate (206), a base (207), a connecting rod (208), a second fixing block (209), a second moving rod (210), a second fixing ring (211), and a second spring (212). The strip block (201) is disposed on the outside of the PCB multilayer board body (1). The first moving rod (202) is slidably installed inside the strip block (201). The first spring (203) is sleeved on the surface of the first moving rod (202). The first fixing ring (204) is fixedly installed on the first moving rod (205). The first fixing block (205) is fixedly installed on the bottom of the first moving rod (202), the first top plate (206) is fixedly installed on the top of the first moving rod (202), the base (207) is fixedly installed on the bottom of the strip block (201), the connecting rod (208) is slidably installed inside the base (207), the second fixing block (209) is fixedly installed on the side of the connecting rod (208), the second moving rod (210) is fixedly installed on the side of the connecting rod (208), the second fixing ring (211) is fixedly installed on the surface of the second moving rod (210), and the second spring (212) is sleeved on the surface of the second moving rod (210). The mounting device (3) consists of a slide rod (301), a sliding sleeve (302), and a mounting angle (303). The slide rod (301) is fixedly installed inside the base (207), the sliding sleeve (302) is slidably installed on the surface of the slide rod (301), and the mounting angle (303) is fixedly installed on the side of the sliding sleeve (302).

2. A PCB multilayer board with a blind via structure according to claim 1, characterized in that: Blind holes are provided on the surface of the PCB multilayer board body (1).

3. A PCB multilayer board with a blind via structure according to claim 1, characterized in that: The strip block (201) has a placement groove inside, and the first top plate (206) is located inside the placement groove.

4. A PCB multilayer board with a blind via structure according to claim 1, characterized in that: One end of the first spring (203) abuts against the strip block (201), and the other end of the first spring (203) abuts against the first fixing ring (204).

5. A PCB multilayer board with a blind via structure according to claim 1, characterized in that: The opposite sides of the first fixing block (205) and the second fixing block (209) are both set as inclined surfaces.

6. A PCB multilayer board with a blind via structure according to claim 1, characterized in that: One end of the second spring (212) abuts against the base (207), and the other end of the second spring (212) abuts against the second fixing ring (211).

7. A PCB multilayer board with a blind via structure according to claim 1, characterized in that: A pull ring is fixedly installed on the side of the second moving rod (210).

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