Multilayer printed circuit board for computer

Abstract

The utility model discloses a multi-layer printed circuit board for a computer, which comprises a circuit board body and a plurality of positioning plates which are arranged in a case, a positioning port is arranged on one side of the case, first fixing columns are arranged on four corners of the circuit board body, second positioning columns are arranged on the inner side surface of the case and right opposite to the first positioning columns, and the first fixing columns and the second positioning columns are arranged on the inner side surface of the case. The opposite faces of the first positioning column and the second positioning column are expanded outwards to form positioning rings, positioning grooves are formed in the inner side faces of the positioning plates, the positioning plates are arranged outside each row of positioning rings in a sleeving mode through the positioning grooves, and a fixing plate is arranged outside the case. According to the utility model, the structure is simple, the positioning of the circuit board body can be directly completed through the positioning plate sleeved outside the positioning ring, the installation is convenient, the installation operation in the case is not needed, and after the positioning plate moves outwards along the positioning port, the positioning plate can be separated from the positioning ring, so that the circuit board can be directly taken out from the case, and the installation is convenient. And great convenience is brought to mounting and dismounting.

Description

Technical Field

[0001] The utility model relates to the technical field of circuit boards, and particularly relates to a multi-layer printed circuit board for a computer. Background Technique

[0002] Multi-layer printed circuit boards (PCBs) for computers are crucial components in computer hardware. They provide mechanical support for various electronic components inside the computer and enable electrical connections to ensure the normal operation of the entire computer system.

[0003] Generally, multi-layer printed circuit boards for computers are the main boards of the computer. However, the current installation structure of the main board is rather troublesome, and the installation process needs to be completed inside the chassis. The space inside the chassis is small, and there are many internal devices, so collisions are likely to occur during the operation, affecting the installation and disassembly efficiency. Content of the Utility Model

[0004] The technical problem to be solved by the utility model is to provide a multi-layer printed circuit board for a computer, which can complete the positioning of the circuit board body by sliding, and the disassembly can be completed externally, so as to solve the problems mentioned in the above background technique.

[0005] The utility model is realized by the following technical solutions: a multi-layer printed circuit board for a computer, including a circuit board body arranged inside the chassis and multiple positioning plates. A positioning port is arranged on one side of the chassis. First fixing columns are installed at the four corners of the circuit board body. Second positioning columns are installed on the inner side surface of the chassis corresponding to the first positioning columns. The opposite surfaces of the first positioning column and the second positioning column both expand outward to form positioning rings. Positioning grooves are arranged on the inner side surfaces of the positioning plates. The positioning plates are all sleeved outside each row of positioning rings through the positioning grooves. An fixing plate is arranged outside the chassis. A positioning part protrudes from the inner side surface of the fixing plate. The positioning part is inserted into the positioning port and fixedly connected with the positioning plate.

[0006] As a preferred technical solution, limiting grooves are arranged on the outer side surfaces of the positioning plates, and multiple limiting plates are slidably installed in the limiting grooves. One ends of the limiting plates are bent downward and installed on the inner side surface of the chassis.

[0007] As a preferred technical solution, insertion parts protrude from the end surfaces of the first positioning columns far away from the circuit board body, slots are arranged on the end surfaces of the second positioning columns facing the first positioning columns, the insertion parts are all inserted into the slots, and the cross sections of the insertion parts and the slots are both arranged in a rectangular structure.

[0008] As a preferred technical solution, a fixing part protrudes from one end of the fixing plate. A first screw hole is arranged on the fixing part. A second screw hole is arranged on the outer side surface of the chassis corresponding to the first screw hole. A hand-tightening bolt is threadedly connected in the first screw hole and the second screw hole.

[0009] As a preferred technical solution, the width of the positioning groove matches the width after adding the upper and lower positioning parts.

[0010] As a preferred technical solution, the positioning plate is made of a metal material.

[0011] The beneficial effects of the present utility model are as follows: The structure of the present utility model is simple. The first positioning post on the circuit board can be directly placed on the second positioning post, and the insertion part is inserted into the slot. The positioning plate sleeved outside the positioning ring can directly complete the positioning of the circuit board body, which facilitates installation and eliminates the need for installation operations inside the chassis. Moreover, after the positioning plate moves outward along the positioning opening, the positioning plate can be detached from the positioning ring, enabling the circuit board to be directly taken out of the chassis, greatly facilitating installation and disassembly. Description of the Drawings

[0012] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the drawings in the following description are only some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings.

[0013] Figure 1 It is a schematic diagram of the overall structure of the present utility model;

[0014] Figure 2 It is a side view of the present utility model;

[0015] Figure 3 It is a schematic diagram of the structure of the present utility model after removing the circuit board body and any one of the first positioning posts;

[0016] Figure 4 It is a bottom view of the present utility model.

[0017] Among them, 1. Circuit board body; 2. Chassis; 3. First positioning post; 4. Second positioning post; 5. Positioning ring; 6. Positioning plate; 7. Limiting groove; 8. Limiting plate; 9. Fixed plate; 10. Positioning part; 11. Slot; 12. Positioning groove; 13. Hand-tightening bolt. Detailed Embodiment

[0018] The following will describe in detail the embodiments of the present utility model. The examples of the embodiments are shown in the drawings, where the same or similar reference numerals represent the same or similar elements or elements with the same or similar functions throughout. The embodiments described below with reference to the drawings are exemplary and are only used to explain the present utility model and should not be construed as a limitation of the present utility model.

[0019] All features disclosed in this specification, or steps in all methods or processes disclosed, except for mutually exclusive features and / or steps, can be combined in any manner.

[0020] Any feature disclosed in this specification (including any additional claims, abstract, and drawings), unless specifically described, can be replaced by other equivalent or similar-purpose alternative features. That is, unless specifically described, each feature is only an example in a series of equivalent or similar features.

[0021] As Figure 1 、 Figure 2 、 Figure 3 and Figure 4 As shown in

[0022] In this embodiment, limiting grooves 7 are provided on the outer side surfaces of the positioning plates 6, and a plurality of limiting plates 8 are slidably installed in the limiting grooves 7. One ends of the limiting plates 8 are bent downward and installed on the inner side surface of the chassis 2. Among them, the positioning plates can be positioned through the limiting grooves and the limiting plates, avoiding the end of the positioning plate away from the fixing plate from warping up and increasing the stability after the positioning plate is inserted.

[0023] In this embodiment, insertion portions protrude from the end surfaces of the first positioning posts 3 away from the circuit board body 1, and slots 11 are provided on the end surfaces of the second positioning posts 4 facing the first positioning posts 3. The insertion portions are inserted into the slots 11, and the cross sections of the insertion portions and the slots 11 are both arranged in a rectangular structure.

[0024] In this embodiment, a fixing portion protrudes from one end of the fixing plate 9, and a first screw hole is provided on the fixing portion. A second screw hole is provided on the outer side surface of the chassis 2 opposite to the first screw hole, and a hand-tightening bolt 13 is threadedly connected in the first screw hole and the second screw hole.

[0025] In this embodiment, the width of the positioning groove 12 matches the width after adding the upper and lower positioning portions 10, so that the upper and lower positioning rings can be firmly pressed together to avoid loosening.

[0026] In this embodiment, the positioning plate 6 is made of a metal material, which increases the firmness and bearing capacity.

[0027] During installation, the first positioning posts on the circuit board body can be placed on the second positioning posts of the chassis, and the insertion parts on the first positioning posts can be inserted into the slots of the second positioning posts. At this time, the positioning rings on the first positioning posts and the second positioning posts can be close to each other.

[0028] After the above is completed, push the fixing plate towards the inside of the chassis. The movement of the fixing plate drives the positioning plate until the positioning slot on the positioning plate sleeves outside the positioning ring. The positioning ring can be tightly pressed up and down through the positioning slot, avoiding the loosening of the first positioning post and the second positioning post. And the circuit board can be positioned front, back, left, and right through the insertion part and the slot to ensure the stability of installation. The fixing plate itself is fixed to the chassis by an externally hand-tightened bolt.

[0029] Conversely, during disassembly, the hand-tightened bolt can be directly rotated to screw the hand-tightened bolt out of the second screw hole. After the blockage of the hand-tightened bolt is removed, the positioning plate can be pulled outwards along the positioning port through the fixing plate. After the positioning plate is removed from the outside of the positioning ring, the circuit board body can be directly taken out upwards from the chassis, making the installation and disassembly processes both possible to be carried out outside the chassis and the operation is convenient.

[0030] The above is only the specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any change or replacement that can be thought of without creative work should be covered within the protection scope of the present invention. Therefore, the protection scope of the present invention should be subject to the protection scope defined by the claims.

Claims

1. A multilayer printed circuit board for a computer, characterized in that: The invention comprises a circuit board body (1) and a plurality of positioning plates (6) arranged inside a chassis (2); a positioning opening is arranged on one side of the chassis (2); first fixing columns are installed on the four corners of the circuit board body (1); second fixing columns (4) are installed on the inner side surface of the chassis (2) opposite to the first fixing columns (3); the opposing surfaces of the first fixing columns (3) and the second fixing columns (4) are expanded outward to form positioning rings (5); positioning grooves (12) are arranged on the inner side surface of the positioning plates (6); the positioning plates (6) are sleeved on the outside of each row of positioning rings (5) through the positioning grooves (12); a fixing plate (9) is arranged outside the chassis (2); a positioning portion (10) is protruded on the inner side surface of the fixing plate (9); the positioning portion (10) is inserted into the positioning opening and fixedly connected to the positioning plate (6).

2. The multilayer printed circuit board for computers according to claim 1, characterized in that: The outer side of the positioning plate (6) is provided with a limit groove (7), and a plurality of limit plates (8) are slidably installed in the limit groove (7), and one end of the limit plate (8) is bent downward and installed on the inner side of the chassis (2).

3. The multilayer printed circuit board for computers according to claim 1, characterized in that: The first positioning column (3) has an end surface away from the circuit board body (1) protruding to form an inserting portion, and the second positioning column (4) has an end surface facing the first positioning column (3) provided with a slot (11), and the inserting portion is inserted into the slot (11), and the cross-sections of the inserting portion and the slot (11) are both arranged in a rectangular structure.

4. The multilayer printed circuit board for computers according to claim 1, characterized in that: One end of the fixing plate (9) protrudes to form a fixing portion, on which a first screw hole is provided, and a second screw hole is provided on the outer side surface of the chassis (2) opposite to the first screw hole, and hand bolts (13) are threadedly connected in the first screw hole and the second screw hole.

5. The multilayer printed circuit board for computers according to claim 1, characterized in that: The width of the positioning groove (12) matches the sum of the widths of the upper and lower positioning portions (10).

6. The multilayer printed circuit board for computers according to claim 1, characterized in that: The positioning plate (6) is made of metal material.

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