CN221381505U - Fixing system based on PCB installation - Google Patents
Fixing system based on PCB installation Download PDFInfo
- Publication number
- CN221381505U CN221381505U CN202322995219.7U CN202322995219U CN221381505U CN 221381505 U CN221381505 U CN 221381505U CN 202322995219 U CN202322995219 U CN 202322995219U CN 221381505 U CN221381505 U CN 221381505U
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- fixing structure
- pcb
- half part
- upper half
- fixing
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- 238000009434 installation Methods 0.000 title claims abstract description 15
- 229910052751 metal Inorganic materials 0.000 claims abstract description 5
- 239000002184 metal Substances 0.000 claims abstract description 5
- 238000003475 lamination Methods 0.000 claims description 7
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- LAXBNTIAOJWAOP-UHFFFAOYSA-N 2-chlorobiphenyl Chemical compound ClC1=CC=CC=C1C1=CC=CC=C1 LAXBNTIAOJWAOP-UHFFFAOYSA-N 0.000 description 9
- 101710149812 Pyruvate carboxylase 1 Proteins 0.000 description 9
- 238000010586 diagram Methods 0.000 description 4
- 230000008878 coupling Effects 0.000 description 3
- 238000010168 coupling process Methods 0.000 description 3
- 238000005859 coupling reaction Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 230000017525 heat dissipation Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000006467 substitution reaction Methods 0.000 description 2
- 229910000838 Al alloy Inorganic materials 0.000 description 1
- 229910000851 Alloy steel Inorganic materials 0.000 description 1
- 230000008094 contradictory effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 239000011810 insulating material Substances 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 230000008054 signal transmission Effects 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
Landscapes
- Mounting Of Printed Circuit Boards And The Like (AREA)
Abstract
The utility model discloses a fixing system based on PCB (printed circuit board) installation, and relates to the technical field of computers, wherein the fixing system comprises a PCB, a chassis bottom plate and a fixing structure; the fixing structure is fixed between the PCB and the bottom plate of the chassis; the fixing structure comprises an upper half part of the fixing structure and a lower half part of the fixing structure, and the upper half part of the fixing structure is fixedly connected with the lower half part of the fixing structure; the lower half part of the fixing structure consists of a plurality of cylindrical side surfaces, the top view of the fixing structure is an arc section, the upper half part of the fixing structure consists of a plurality of petal-like curved surface structures, and the upper half part of the fixing structure and the lower half part of the fixing structure are made of elastic metal. The utility model has the beneficial effects that: the fixed main board is guaranteed to be quickly and easily installed at the bottom of the inner side of the case.
Description
Technical Field
The utility model relates to the technical field of computers, in particular to a fixing system based on PCB installation.
Background
The PCB board (Printed Circuit Board ) is a basic component for supporting and connecting electronic components. It is typically made of an insulating material with conductive traces and mounting locations for electronic components printed thereon. The PCB plays a role in connecting and supporting electronic components in the electronic device.
The main functions of the PCB board include:
1. Providing mechanical support for the electronic components: the PCB board may secure and support the electronic components so that they can be securely mounted in the device.
2. Providing electrical connection between electronic components: through the conductive line, the PCB board connects electronic components together, realizes the transmission of signal and electric power.
3. Providing a layout and arrangement of electronic components: the layout of the wires and elements on the PCB is optimized according to the circuit design requirements to ensure proper operation of the electronic device.
PCB boards are typically constructed of multiple layers, including an inner layer and an outer layer. The inner layer is a conductive layer located inside the board for transmitting signals and power. The outer layer is a conductive layer positioned on the surface of the plate and used for connecting the electronic element and the external interface.
The bottom side plate of the case is a component part of the case of the electronic equipment and is positioned at the bottom of the case. It is typically made of a metallic material, such as steel or aluminum alloy, to provide structural support to the chassis and to protect the electronic components. The bottom side plate of the machine box has the following functions:
1. Providing structural rigidity to the chassis: the bottom side panels add stability and rigidity to the overall chassis by connecting other chassis components (front panel, rear panel, side panels).
2. Protecting the internal electronics: the bottom side plate can prevent external objects from entering the inside of the case and protect electronic components from being damaged or polluted by dust and the like.
3. Providing heat dissipation support: the bottom side plate typically has heat dissipating holes or grooves for facilitating air flow to assist in heat dissipation from the heat sink.
The fixed structure between the PCB and the bottom side plate of the case is mainly connected through screws and nuts. Usually, a plurality of fixing holes are reserved on the bottom side plate of the chassis, and the holes correspond to the fixing holes on the PCB. Then, the screws are passed through the fixing holes on the bottom side plate of the case and the PCB board, and are fastened by nuts, so that the PCB board is fixed inside the case. The structure can ensure that the PCB is firmly arranged in the case, and is convenient to maintain and replace.
At present, a main board and a chassis are fixed through a plurality of screws. The screws are locked one by using a screwdriver, and a certain torque is controlled. For mechanical automation, a mechanical arm with a screw driver can be used for fixing by rotating at a higher speed. But manually operated installation: if a common screwdriver is used, time and labor are wasted, and the torque cannot meet the unified requirement. If an electric screwdriver is used, the screw rotation speed can be increased, but the screw needs to be screwed one by one, the screw is easy to slide, and the torque control is difficult.
Disclosure of utility model
In order to overcome the defects of the prior art, the utility model provides a fixing system based on PCB board installation, so as to ensure that a fixing main board is quickly and easily installed at the bottom of the inner side of a chassis.
The technical scheme adopted for solving the technical problems is as follows: the utility model provides a fixing system based on PCB board installation which is characterized in that, the fixing system includes a PCB board, a chassis bottom board and a fixing structure; the fixing structure is fixed between the PCB and the bottom plate of the chassis;
The fixing structure comprises an upper half part of the fixing structure and a lower half part of the fixing structure, and the upper half part of the fixing structure is fixedly connected with the lower half part of the fixing structure; the lower half part of the fixing structure consists of a plurality of cylindrical side surfaces, the top view of the fixing structure is an arc section, the upper half part of the fixing structure consists of a plurality of petal-like curved surface structures, and the upper half part of the fixing structure and the lower half part of the fixing structure are made of elastic metal.
In the structure, the PCB is provided with the screw hole, and the fixing structure penetrates through the screw hole and is fastened with the top surface of the PCB through the upper half part of the fixing structure and the lower half part of the fixing structure.
In the above structure, the fixing system further includes a mounting sleeve for mounting the fixing structure, the mounting sleeve having an outer diameter smaller than a diameter of the screw hole, and an inner diameter larger than a size of the upper half of the fixing structure when the upper half of the fixing structure is contracted and smaller than a size of the upper half of the fixing structure when the upper half of the fixing structure is not subjected to an external force.
In the above structure, the dimension of the upper half of the fixing structure when not subjected to external force is larger than the diameter of the screw hole.
In the structure, the bottom of the upper half part of the fixing structure is in direct contact with the plane of the top of the screw hole.
In the above structure, one end of the lower half part of the fixing structure is welded on the bottom plate of the chassis, and the other end is welded on the bottom of the upper half part of the fixing structure.
In the above structure, the fixing system further comprises a lamination, wherein the lamination inner diameter is slightly larger than the outer diameter of the lower half part of the fixing structure, and the lamination inner diameter is used for controlling the distance between the PCB and the bottom plate of the chassis.
In the structure, the circular arc sections at the lower half part of the fixed structure correspond to the petal-like curved surface structures at the upper half part of the fixed structure one by one, and the number of the circular arc sections is the same.
The beneficial effects of the utility model are as follows: the upper half part of the fixing structure is clamped into the screw hole of the main board through the mounting sleeve, then the mounting sleeve is removed, the upper half part of the fixing structure rebounds, and the PCB board is locked through the screw hole so as to fix the PCB board on the bottom board of the chassis, thereby ensuring that the main board is quickly and easily mounted on the bottom of the inner side of the chassis.
Drawings
Fig. 1 is a schematic diagram of the overall structure of a fixing system based on PCB board installation of the present utility model;
fig. 2 is a schematic diagram of the overall structure of a fixing system based on PCB board installation according to the present utility model;
Fig. 3 is a schematic structural diagram of a lower half part of a fixing structure of the fixing system based on PCB board installation of the present utility model;
Fig. 4 is a schematic structural diagram of an upper half part of a fixing structure of a fixing system based on PCB board installation of the present utility model.
Detailed Description
The invention will be further described with reference to the drawings and examples.
The conception, specific structure, and technical effects produced by the present invention will be clearly and completely described below with reference to the embodiments and the drawings to fully understand the objects, features, and effects of the present invention. It is apparent that the described embodiments are only some embodiments of the present invention, but not all embodiments, and that other embodiments obtained by those skilled in the art without inventive effort are within the scope of the present invention based on the embodiments of the present invention. In addition, all the coupling/connection relationships referred to in the patent are not direct connection of the single-finger members, but rather, it means that a better coupling structure can be formed by adding or subtracting coupling aids depending on the specific implementation. The technical features in the invention can be interactively combined on the premise of no contradiction and conflict.
It should be noted that all directional indicators (such as up, down, left, right, front, and rear are used in the embodiments of the present invention) are merely for explaining the relative positional relationship, movement conditions, and the like between the components in a certain specific posture (as shown in the drawings), and if the specific posture is changed, the directional indicators are changed accordingly.
It will also be understood that when an element is referred to as being "mounted" or "disposed" on another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present.
Furthermore, the description of "first," "second," etc. in this disclosure is for descriptive purposes only and is not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In addition, the technical solutions of the embodiments may be combined with each other, but it is necessary to base that the technical solutions can be realized by those skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should be considered to be absent and not within the scope of protection claimed in the present invention.
Referring to fig. 1-4, the utility model discloses a fixing system based on the installation of a PCB board 1, wherein the fixing system comprises the PCB board 1, a chassis bottom board 2 and a fixing structure 4; the fixing structure 4 is fixed between the PCB 1 and the chassis bottom plate 2; preferably, the fixing structure 4 comprises a fixing structure upper half 6 and a fixing structure lower half 5, and the fixing structure upper half 6 and the fixing structure lower half 5 are fixedly connected; the lower half part 5 of the fixing structure consists of a plurality of cylindrical side surfaces, the top view of the lower half part is an arc section, the upper half part 6 of the fixing structure consists of a plurality of petal-like curved surface structures, and the upper half part 6 of the fixing structure and the lower half part 5 of the fixing structure are both made of elastic metal; the PCB 1 is provided with a screw hole, and the fixing structure 4 passes through the screw hole and is fastened with the top surface of the PCB 1 through the upper half part 6 and the lower half part 5 of the fixing structure; in addition, the fixing system further comprises a mounting sleeve and a lamination for mounting the fixing structure 4, wherein the outer diameter of the mounting sleeve is smaller than the diameter of the screw hole, and the inner diameter is larger than the size of the upper half part 6 of the fixing structure when the upper half part 6 of the fixing structure is contracted and smaller than the size of the upper half part 6 of the fixing structure when the upper half part 6 of the fixing structure is not subjected to external force; the inner diameter of the lamination is slightly larger than the outer diameter of the lower half part 5 of the fixed structure, and the lamination is used for controlling the distance between the PCB 1 and the bottom plate 2 of the chassis; the dimension of the upper half part 6 of the fixed structure when not subjected to external force is larger than the diameter of the screw hole; the bottom of the upper half part 6 of the fixing structure is directly contacted and leveled with the top plane of the screw hole; one end of the lower half part of the fixed structure 4 is welded on the chassis bottom plate 2, and the other end is welded on the bottom of the upper half part 6 of the fixed structure; the circular arc sections of the lower half part 5 of the fixed structure correspond to the petal-like curved surface structures of the upper half part 6 of the fixed structure one by one, and the number of the circular arc sections is the same.
In this embodiment, the fixing structure 4 is used for fixing the PCB board 1 on the chassis bottom board 2, wherein the lower half 5 of the fixing structure is used for connecting the upper half 6 of the fixing structure with the chassis bottom board 2, and the bottom of the upper half 6 of the fixing structure is directly contacted with the top of the screw hole 3 to fix the PCB board 1 on the chassis bottom board 2; the mounting sleeve is arranged to facilitate the mounting of the PCB 1; the specific steps of the operator to mount the PCB board 1 to the chassis bottom board 2 include: firstly, sleeving the mounting sleeve into the fixing structure 4, wherein the upper half part 6 of the fixing structure is made of metal with certain elasticity, and when the mounting sleeve is sleeved into the fixing structure 4, the fixing structure is contracted and temporarily clamped in the mounting sleeve; then, slowly placing the PCB 1, aligning the positions of the screw holes 3, and penetrating the mounting sleeve into the screw holes 3; finally, the mounting sleeve is pulled out of the screw hole 3, the fixing structure rebounds, the lower half part 5 of the fixing structure rebounds and contacts the inner side of the screw hole 3. The upper half part 6 of the fixing structure and the lower half part 5 of the fixing structure rebound together, the bottom of the upper half part 6 of the fixing structure is flush with the top of the screw hole 3, the size of the upper half part 6 of the fixing structure is larger than that of the screw hole 3 when the upper half part 6 of the fixing structure is not subjected to external force, and the fixing structure 4 is in contact fastening with the screw hole 3 of the PCB board and the PCB board 1 so as to fix the PCB board 1 on the bottom board 2 of the chassis; thereby ensuring that the fixed main board is quickly and easily installed on the bottom of the inner side of the case. In addition, when the PCB 1 needs to be overhauled or replaced due to damage, an operator is required to detach the original PCB 1 from the chassis bottom plate 2, and the detachment steps of the PCB 1 specifically comprise: firstly, sleeving the mounting sleeve into the fixing structure 4, and shrinking the fixing structure; then, slowly picking up the main board, and enabling the screw hole 3 to leave the mounting sleeve; finally, the mounting sleeve is removed. Wherein, because the outer diameter of the mounting sleeve is smaller than the diameter of the screw hole 3, the mounting sleeve can be easily inserted into and pulled out of the screw hole 3; the size of the upper half part 6 of the fixing structure when not subjected to external force is larger than the outer diameter of the sleeve and the diameter of the screw hole 3, and the inner diameter of the mounting sleeve is larger than the size of the upper half part 6 of the fixing structure when contracted, so that the upper half part 6 of the fixing structure can be well fixed in the mounting sleeve when contracted.
While the preferred embodiment of the present utility model has been described in detail, the present utility model is not limited to the embodiments, and those skilled in the art can make various equivalent modifications or substitutions without departing from the spirit of the present utility model, and the equivalent modifications or substitutions are included in the scope of the present utility model as defined in the appended claims.
Claims (8)
1. The fixing system based on the PCB installation is characterized by comprising a PCB, a chassis bottom plate and a fixing structure; the fixing structure is fixed between the PCB and the bottom plate of the chassis;
The fixing structure comprises an upper half part of the fixing structure and a lower half part of the fixing structure, and the upper half part of the fixing structure is fixedly connected with the lower half part of the fixing structure; the lower half part of the fixing structure consists of a plurality of cylindrical side surfaces, the top view of the fixing structure is an arc section, the upper half part of the fixing structure consists of a plurality of petal-like curved surface structures, and the upper half part of the fixing structure and the lower half part of the fixing structure are made of elastic metal.
2. The fixing system based on the installation of the PCB according to claim 1, wherein screw holes are formed in the PCB, and the fixing structure penetrates through the screw holes and is fastened to the top surface of the PCB by contacting the upper half part of the fixing structure and the lower half part of the fixing structure.
3. The PCB-mounting based fixing system of claim 2, further comprising a mounting sleeve for mounting the fixing structure, the mounting sleeve having an outer diameter smaller than a diameter of the screw hole, an inner diameter larger than a size of the upper half of the fixing structure when the upper half of the fixing structure is contracted, and smaller than a size of the upper half of the fixing structure when the upper half of the fixing structure is not subjected to an external force.
4. A PCB-mounted fastening system according to claim 3, wherein the upper half of the fastening structure is larger than the diameter of the screw hole when not subjected to an external force.
5. The PCB-mounting based fastening system of claim 4, wherein the bottom of the upper half of the fastening structure is in direct contact with the top plane of the screw hole.
6. The PCB-based fastening system of claim 5, wherein one end of the lower half of the fastening structure is welded to the chassis bottom plate and the other end is welded to the bottom of the upper half of the fastening structure.
7. The PCB-mounting based fastening system of claim 6, further comprising a lamination having an inner diameter slightly larger than an outer diameter of the lower half of the fastening structure for controlling a PCB-to-chassis bottom plate spacing.
8. The fixing system based on the installation of the PCB according to claim 1, wherein the lower circular arc sections of the fixing structure correspond to the petal-like curved surface structures of the upper half of the fixing structure one by one, and the number of the circular arc sections is the same.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322995219.7U CN221381505U (en) | 2023-11-03 | 2023-11-03 | Fixing system based on PCB installation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322995219.7U CN221381505U (en) | 2023-11-03 | 2023-11-03 | Fixing system based on PCB installation |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN221381505U true CN221381505U (en) | 2024-07-19 |
Family
ID=91892911
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322995219.7U Active CN221381505U (en) | 2023-11-03 | 2023-11-03 | Fixing system based on PCB installation |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN221381505U (en) |
-
2023
- 2023-11-03 CN CN202322995219.7U patent/CN221381505U/en active Active
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |