Multi-layer circuit board capable of preventing circuit board from moving and colliding

Abstract

The utility model discloses a multilayer circuit board capable of preventing movement and collision of a circuit board, which relates to the technical field of multilayer circuit boards and comprises a circuit board main body, a positioning and supporting assembly is mounted in a mounting hole of the circuit board main body, and the positioning and supporting assembly is used for providing support for the placement of the circuit board main body; the positioning and supporting assembly comprises an upper supporting cylinder, a lower supporting cylinder, an L-shaped elastic buckle and an annular clamping groove. According to the utility model, through the arrangement of the positioning support assembly, when the disassembled circuit board main body is maintained and the circuit board main body is placed on a table top, the upper support cylinder and the lower support cylinder can be contacted with the table top, so that the circuit board main body can be horizontally placed, and elements on the circuit board main body can not be contacted with the table top; therefore, in the maintenance process, the circuit board body can be kept in a good stable placement state, meanwhile, the elements cannot collide with a table top, and secondary damage caused by collision is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of multilayer circuit boards, in particular to a multilayer circuit board which can prevent the circuit board from moving and colliding. Background Art

[0002] Circuit boards are classified into three categories according to the number of layers: single-sided boards, double-sided boards, and multi-layer circuit boards. Among them, multi-layer boards refer to printed boards with more than three conductive graphic layers and insulating materials laminated in between, and the conductive graphics are interconnected as required. Multi-layer circuit boards are the product of the development of electronic information technology towards high speed, multi-function, large capacity, small size, thinness, and lightweight.

[0003] When the multi-layer circuit board is actually used, corresponding electronic components are installed on the upper and lower surfaces, and the electronic components are uneven, which also causes the multi-layer circuit board to be placed directly (for example: when the multi-layer circuit board is placed on a desktop for maintenance), the uneven electronic components will cause the multi-layer circuit board to be unstable. When the maintenance personnel inspect the circuit board, they will inevitably press the multi-layer circuit board, which will cause the multi-layer circuit board to move, and the downward electronic components will collide with the desktop, which will not only affect the maintenance action, but also easily cause secondary damage to the electronic components. Based on this, a multi-layer circuit board that can prevent the circuit board from moving and colliding is provided. Utility Model Content

[0004] The purpose of the utility model is to provide a multilayer circuit board which can prevent the circuit board from moving and colliding in order to solve the above-mentioned background problems.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a multi-layer circuit board capable of preventing the circuit board from moving and colliding, comprising a circuit board body, a positioning support assembly being installed inside the mounting hole of the circuit board body, and the positioning support assembly being used to provide support for the placement of the circuit board body;

[0006] The positioning support assembly includes an upper support column, a lower support column, an L-shaped spring buckle, and an annular groove;

[0007] The upper support cylinder and the lower support cylinder are symmetrically distributed at the upper and lower ends of the circuit board body. When the circuit board body is placed on a desktop, the upper support cylinder and the lower support cylinder are used to contact the desktop, so that the components on the upper and lower surfaces of the circuit board body do not contact the desktop;

[0008] The lower support column is fixed to the bottom of the upper support column and extends through the mounting hole to the bottom of the circuit board body;

[0009] The annular groove is opened on the inner side of the lower supporting cylinder, and the bottom buckle part of the lower supporting cylinder extends to the inside of the lower supporting cylinder and is clamped in the inner side of the annular groove, and the connection between the upper supporting cylinder and the lower supporting cylinder is realized by the engagement of the bottom buckle part of the lower supporting cylinder with the annular groove.

[0010] As a further solution of the utility model: positioning holes are opened at the upper end of the upper supporting column and the bottom end of the lower supporting column, and the ends of the positioning holes are in a trumpet-mouth structure. The positioning hole at the upper end of the upper supporting column is used for accommodating the nut of the fixing bolt, and the positioning hole at the bottom of the lower supporting column is used for precise docking of the lower supporting column with the external fixing column.

[0011] As a further solution of the utility model: the bottom of the upper supporting cylinder and the top of the lower supporting cylinder are bonded and connected with a buffer rubber ring, and the buffer rubber ring is used to provide a buffer shrinkage space between the upper supporting cylinder, the lower supporting cylinder and the surface of the circuit board body.

[0012] As a further solution of the utility model: a plurality of L-shaped spring buckles are provided, and the plurality of L-shaped spring buckles are distributed in a ring shape, the bottom of the buckle part at the bottom of the annular groove is an arc surface structure, and the top of the buckle part is a horizontal surface structure.

[0013] As a further solution of the utility model: the inner wall diameter of the buffer rubber ring is larger than the distributed outer diameters of the multiple L-shaped spring buckles, and the height of the annular groove is larger than the height of the buckle part.

[0014] As a further solution of the utility model: a plurality of heat dissipation grooves are opened on the outer wall side surfaces of the upper supporting cylinder column and the lower supporting cylinder column, and the plurality of heat dissipation grooves are distributed in a ring shape and are connected with the inner sides of the upper supporting cylinder column and the lower supporting cylinder column.

[0015] Compared with the prior art, the beneficial effects of the utility model are:

[0016] By setting up the positioning support assembly, when the disassembled circuit board body is repaired, when the circuit board body is placed on the desktop, the upper support cylinder column and the lower support cylinder column will contact the desktop, which not only realizes the horizontal placement of the circuit board body, but also enables the components on the circuit board body to not contact the desktop. Then, during the maintenance process, the circuit board body can maintain a good and stable placement state, and the components will not collide with the desktop, thereby avoiding secondary damage caused by the collision. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the structure of the utility model;

[0018] Figure 2 This is a structural cross-sectional view of the circuit board body of the utility model;

[0019] Figure 3 It is a structural schematic diagram of the positioning support assembly of the utility model;

[0020] Figure 4 This is a schematic diagram of the disassembled state of the positioning support assembly of the utility model;

[0021] Figure 5 It is a cross-sectional view of the docking state of the positioning support assembly of the utility model.

[0022] In the figure: 1, circuit board body; 2, positioning support assembly; 201, upper support column; 202, lower support column; 203, L-shaped spring buckle; 204, annular slot; 205, buffer rubber ring; 206, positioning hole; 207, heat dissipation slot. DETAILED DESCRIPTION

[0023] 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.

[0024] See also Figures 1 to 5 In an embodiment of the utility model, a multilayer circuit board capable of preventing the circuit board from moving and colliding comprises a circuit board body 1, a positioning support assembly 2 is installed inside the mounting hole of the circuit board body 1, and the positioning support assembly 2 is used to provide support for the placement of the circuit board body 1;

[0025] The positioning support assembly 2 includes an upper support column 201, a lower support column 202, an L-shaped spring buckle 203, and an annular groove 204;

[0026] The upper support column 201 and the lower support column 202 are symmetrically distributed at the upper and lower ends of the circuit board body 1. When the circuit board body 1 is placed on a desktop, the upper support column 201 and the lower support column 202 are used to contact the desktop, so that the components on the upper and lower surfaces of the circuit board body 1 do not contact the desktop;

[0027] The lower support column 202 is fixed to the bottom of the upper support column 201 and extends through the mounting hole to the bottom of the circuit board body 1;

[0028] The annular groove 204 is provided on the inner side of the lower support column 202, and the bottom buckle portion of the lower support column 202 extends to the inside of the lower support column 202 and is engaged with the inner side of the annular groove 204. The upper support column 201 and the lower support column 202 are connected by the engagement of the bottom buckle portion of the lower support column 202 with the annular groove 204.

[0029] The upper end of the upper support column 201 and the bottom end of the lower support column 202 are provided with positioning holes 206, and the ends of the positioning holes 206 are in a trumpet-mouth structure. The positioning hole 206 at the upper end of the upper support column 201 is used for receiving the nut of the fixing bolt, and the positioning hole 206 at the bottom of the lower support column 202 is used for precise docking of the lower support column 202 with the external fixing column.

[0030] In this embodiment: it should be supplemented that: the height of the upper support column 201 and the lower support column 202 is greater than the highest height of the components on the upper and lower surfaces of the circuit board body 1;

[0031] When the circuit board body 1 is installed inside the device, a fixing column for installing the circuit board body 1 will be preset inside the device housing. The installation steps are as follows:

[0032] First, install the positioning support assembly 2 with the mounting hole on the circuit board body 1, by placing the upper support cylinder 201 and the lower support cylinder 202 at the upper and lower ends of the circuit board body 1 respectively, and then fit the lower support cylinder 202 to the lower surface of the circuit board body 1, and simultaneously move the upper support cylinder 201 downward, so that the L-shaped spring buckle 203 is inserted into the mounting hole, and the bottom buckle part of the L-shaped spring buckle 203 is squeezed with the inner wall of the mounting hole, and the L-shaped spring buckle 203 will deform and shrink, so that the L-shaped spring buckle 203 can smoothly pass through the mounting hole and enter the lower support cylinder 202. When the bottom buckle part of the L-shaped spring buckle 203 is aligned with the annular groove 204, the L-shaped spring buckle 203 is reset under the action of its own elastic force, and the bottom buckle part of the L-shaped spring buckle 203 is inserted into the annular groove 204. At this time, the upper support cylinder 201 and the lower support cylinder 202 are connected, that is, the positioning support assembly 2 is installed;

[0033] After all the positioning support components 2 are installed, the circuit board body 1 can be transferred to the position to be installed. At this time, the lower support cylinder 202 can be sleeved with the outer wall of the fixing column inside the device housing through the positioning hole 206 at its bottom, and then the circuit board body 1 and the fixing column can be accurately docked. Finally, the fixing bolts are passed through the upper support cylinder 201, the installation hole, the lower support cylinder 202 in sequence and connected with the fixing column by thread, so that the circuit board body 1 can be installed;

[0034] When the disassembled circuit board body 1 is repaired and placed on the desktop, the upper supporting cylinder 201 and the lower supporting cylinder 202 will contact the desktop, which not only realizes the horizontal placement of the circuit board body 1, but also prevents the components on the circuit board body 1 from contacting the desktop. Therefore, during the maintenance process, the circuit board body 1 can maintain a good and stable placement state, and the components will not collide with the desktop, thereby avoiding secondary damage caused by the collision.

[0035] Please refer to Figures 1 to 5 A plurality of heat dissipation grooves 207 are provided on the outer wall side of the upper supporting cylinder 201 and the lower supporting cylinder 202 . The plurality of heat dissipation grooves 207 are distributed in a ring shape and are connected with the inner side of the upper supporting cylinder 201 and the lower supporting cylinder 202 .

[0036] In this embodiment, by providing the heat dissipation grooves 207 , after the circuit board body 1 is fixed by the fixing bolts, the inner cavity of the mounting hole of the circuit board body 1 maintains a flow state with the external air, thereby facilitating the heat dissipation of the circuit board body 1 .

[0037] Please refer to Figures 1 to 5 The bottom of the upper support cylinder 201 and the top of the lower support cylinder 202 are bonded with a buffer rubber ring 205, and the buffer rubber ring 205 is used to provide a buffer shrinkage space between the upper support cylinder 201, the lower support cylinder 202 and the surface of the circuit board body 1;

[0038] There are multiple L-shaped spring buckles 203, which are distributed in an annular shape. The bottom of the buckle part at the bottom of the annular buckle groove 204 is an arc surface structure, and the top of the buckle part is a horizontal surface structure.

[0039] The inner wall diameter of the buffer rubber ring 205 is larger than the distributed outer diameters of the plurality of L-shaped spring buckles 203 , and the height of the annular clamping groove 204 is larger than the height of the clamping part.

[0040] In this embodiment: by setting the buffer rubber ring 205, a shrinkage buffer space is provided between the upper support cylinder 201, the lower support cylinder 202 and the circuit board body 1. When the circuit board body 1 is fixed by the fixing bolts, the buffer rubber ring 205 will shrink under force, which not only ensures the fixation and stability of the circuit board body 1, but also reduces the hard friction and extrusion between the upper support cylinder 201, the lower support cylinder 202 and the circuit board body 1 through the buffer rubber ring 205;

[0041] After the circuit board body 1 is removed, the buffer rubber ring 205 will be reset under its own elasticity. When the circuit board body 1 is placed on the desktop, the upper support column 201 and the lower support column 202 collide with the desktop. The impact force between them will be buffered and offset by the buffer rubber ring 205. In this way, the impact force on the circuit board body 1 during the placement operation is reduced during the maintenance process.

[0042] The inner wall diameter of the buffer rubber ring 205 is larger than the outer diameters of the multiple L-shaped spring buckles 203, so that when the buffer rubber ring 205 is contracted by the extrusion force, the inner wall of the buffer rubber ring 205 will not contact the L-shaped spring buckles 203;

[0043] The height of the annular groove 204 is greater than the height of the buckle part, so that when the upper supporting column 201 and the lower supporting column 202 squeeze the buffer rubber ring 205 to shrink, space is provided for the buckle part of the L-shaped spring buckle 203 to move.

[0044] What is described above is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A multilayer circuit board capable of preventing the circuit board from moving and colliding, comprising a circuit board body (1), characterized in that: A positioning support component (2) is installed inside the mounting hole of the circuit board body (1), and the positioning support component (2) is used to provide support for the placement of the circuit board body (1); The positioning support assembly (2) comprises an upper support column (201), a lower support column (202), an L-shaped spring buckle (203), and an annular groove (204); The upper support column (201) and the lower support column (202) are symmetrically distributed at the upper and lower ends of the circuit board body (1); when the circuit board body (1) is placed on a desktop, the upper support column (201) and the lower support column (202) are used to contact the desktop, so that the components on the upper and lower surfaces of the circuit board body (1) do not contact the desktop; The lower support column (202) is fixed to the bottom of the upper support column (201) and extends through the mounting hole to the bottom of the circuit board body (1); The annular groove (204) is provided on the inner side of the lower support column (202), and the bottom snap-in portion of the lower support column (202) extends into the interior of the lower support column (202) and snaps into the inner side of the annular groove (204), and the connection between the upper support column (201) and the lower support column (202) is achieved by snapping the bottom snap-in portion of the lower support column (202) into the annular groove (204).

2. A multilayer circuit board capable of preventing the circuit board from moving and colliding according to claim 1, characterized in that: The upper end of the upper support column (201) and the bottom end of the lower support column (202) are provided with positioning holes (206), and the ends of the positioning holes (206) are in a bell-mouth structure. The positioning hole (206) at the upper end of the upper support column (201) is used for receiving the nut of the fixing bolt, and the positioning hole (206) at the bottom of the lower support column (202) is used for the lower support column (202) to be precisely connected with the external fixing column.

3. A multilayer circuit board capable of preventing the circuit board from moving and colliding according to claim 2, characterized in that: The bottom of the upper support column (201) and the top of the lower support column (202) are bonded with a buffer rubber ring (205), and the buffer rubber ring (205) is used to provide a buffer shrinkage space between the upper support column (201), the lower support column (202) and the surface of the circuit board body (1).

4. A multilayer circuit board capable of preventing the circuit board from moving and colliding according to claim 1, characterized in that: A plurality of L-shaped spring buckles (203) are provided, and the plurality of L-shaped spring buckles (203) are distributed in an annular shape. The bottom of the buckle portion at the bottom of the annular buckle groove (204) is in an arc surface structure, and the top of the buckle portion is in a horizontal surface structure.

5. A multilayer circuit board capable of preventing the circuit board from moving and colliding according to claim 3, characterized in that: The inner wall diameter of the buffer rubber ring (205) is greater than the distributed outer diameters of the plurality of L-shaped spring buckles (203), and the height of the annular clamping groove (204) is greater than the height of the clamping portion.

6. A multilayer circuit board capable of preventing the circuit board from moving and colliding according to claim 1, characterized in that: The outer wall side surfaces of the upper supporting cylinder (201) and the lower supporting cylinder (202) are provided with a plurality of heat dissipation grooves (207), and the plurality of heat dissipation grooves (207) are distributed in an annular shape and are connected to the inner sides of the upper supporting cylinder (201) and the lower supporting cylinder (202).

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