Heat dissipation box

Abstract

The utility model discloses a heat dissipation box which is simple in structure and good in heat dissipation performance. The box body comprises surrounding plates, the surrounding plates enclose to form an inner cavity, the inner cavity is used for placing various PCBs, each surrounding plate of the surrounding plates is provided with a plurality of side convex heat dissipation fins, the inner circumference of a frame body formed by the surrounding plates is provided with a plurality of groups of positioning hole columns, and the positioning hole columns are used for positioning the PCBs; each positioning hole column comprises a column body and positioning holes located in the upper end and the lower end, at least one of the surrounding plates is provided with a through hole, each through hole is provided with a connector, the connectors are used for threading, and the connectors are blocked by plugs when not in use. A plurality of first connecting holes and fixing holes are formed in the bottom plate, the first connecting holes are used for being connected with a box body, and the fixing holes are located in the opposite outer side faces of the first connecting holes and used for being fixedly connected with roof equipment; corresponding second connecting holes are formed in the periphery of the upper surface of the upper cover; and the pair of sealing gaskets comprises an upper sealing gasket and a lower sealing gasket.

Description

Technical Field

[0001] The utility model relates to the technical field of rail transit detection equipment, in particular to a heat dissipation box. Background Art

[0002] The roof equipment in rail transit inspection equipment is an integrated device, which requires the integrated installation of PCBs such as control boards, driver boards, and power boards, thereby reducing installation points and saving space. During the operation of the equipment, due to the requirements of environmental sealing, a large amount of heat will be generated in the air around the PCB board. This heat needs to be discharged in time, otherwise the high temperature will cause abnormal function or even damage of electronic components, thereby affecting the stability of equipment operation. The existing heat dissipation box has a relatively complex structure and poor heat dissipation function. Therefore, it is urgent to develop a heat dissipation box with a simple structure and good heat dissipation performance. Summary of the invention

[0003] In view of the above problems, the utility model provides a heat dissipation box, which has a simple structure and good heat dissipation performance.

[0004] A heat dissipation box, characterized in that it comprises:

[0005] The box body comprises four surrounding panels, which are enclosed to form an inner cavity, wherein the inner cavity is used to place various PCB boards, each of which is provided with a plurality of side-convex heat dissipation fins, and the inner periphery of the frame body formed by the four surrounding panels is provided with a plurality of groups of positioning hole columns, wherein the positioning hole columns comprise a column body and positioning holes at the upper and lower ends, and at least one of the four surrounding panels is provided with a through hole, and each through hole is provided with a joint, wherein the joint is used for threading, and when not in use, the joint is blocked by a plug;

[0006] A bottom plate, on which a plurality of first connection holes and fixing holes are provided, wherein the first connection holes are used to connect with the box body, and the fixing holes are located at the outer side areas opposite to the first connection holes and are used to be fixedly connected with the roof equipment;

[0007] An upper cover, the outer periphery of the upper surface of which is provided with corresponding second connection holes;

[0008] and a pair of sealing gaskets, which are an upper sealing gasket and a lower sealing gasket;

[0009] The upper sealing gasket and the lower sealing gasket are a frame structure, and the upper sealing gasket and the lower sealing gasket are arranged in the shape of the inner edge of the contour of the frame. The bottom plate is pressed onto the lower sealing gasket, and the screws pass through the first connecting hole, and the lower sealing gasket is connected to the lower end positioning hole of the positioning hole column of the box body. The part of the bottom plate provided with the fixing hole protrudes outward from the outside of the box body, and the upper cover is covered on the upper sealing gasket, and the screws pass through the second connecting hole, and the upper sealing gasket is connected to the upper end positioning hole of the positioning hole column of the box body.

[0010] It is further characterized by:

[0011] The outer circumference of each of the enclosures is arranged with side-convex heat dissipation fins at equal intervals along the length direction, the heat dissipation fins corresponding to adjacent enclosures are arranged perpendicular to each other, and the height of each heat dissipation fin covers the height of the enclosure;

[0012] The heat dissipation fins at the junction of two adjacent enclosures are composite heat dissipation fins, which include a pair of right-angled sides, wherein the outer edges of the outer right-angled sides are provided with guide bevels, which prevent the exposed sharp corners from existing, thus ensuring that other components are not easily damaged;

[0013] The outer edges of the adjacent parallel heat dissipation fins corresponding to the outer right-angled sides of the composite fins are provided with second guiding bevels, and the second guiding bevels are arranged parallel to the guiding bevels, further ensuring that there are no exposed sharp corners;

[0014] The upper sealing gasket and the lower sealing gasket are the same sealing gaskets;

[0015] The inner edges of the four corners of the frame are provided with positioning hole columns, and the inner edge of the center of each enclosure in the length direction is provided with a positioning hole column. The upper sealing gasket and the lower sealing gasket are provided with avoidance holes corresponding to the positions of the positioning holes of the positioning hole columns, which makes the overall structure assembly stable and reliable, and the sealing is reliable.

[0016] After adopting the above technical scheme, when multiple PCB boards need to be installed in the inner cavity of the box, a large amount of heat is likely to accumulate. Each of the surrounding panels is provided with a number of side-convex heat dissipation fins to facilitate heat dissipation and meet the sealing requirements in the external environment. In addition, at least one of the surrounding panels has a reserved connector for wiring operations, which can be sealed when not in use, which is quick and reliable. It has a simple structure and good heat dissipation performance. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a three-dimensional diagram of the utility model;

[0018] Figure 2 It is a top view of the utility model;

[0019] Figure 3 It is the front view of the utility model;

[0020] Figure 4 This is a three-dimensional diagram of a specific embodiment of the utility model with a built-in PCB board after the upper cover is removed;

[0021] The names corresponding to the serial numbers in the figure are as follows:

[0022] Box body 10, enclosure 11, inner cavity 12, heat dissipation fin 13, second guide bevel 131, positioning hole column 14, column 141, positioning hole 142, composite heat dissipation fin 15, right-angled edge 151, guide bevel 152, bottom plate 20, first connecting hole, fixing hole 21, upper cover 30, second connecting hole 31, PCB board 40, connector 50, upper sealing gasket 60, avoidance hole 61, lower sealing gasket 70, screw 80. DETAILED DESCRIPTION

[0023] A heat sink, see Figure 1-Figure 4 , which includes a box body 10, a bottom plate 20, an upper cover 30, and a pair of sealing gaskets;

[0024] The box body 10 includes four surrounding panels 11, which are enclosed to form an inner cavity 12. The inner cavity 12 is used to place various PCB boards 40. Each of the surrounding panels 11 is provided with a plurality of side-convex heat dissipation fins 13. The inner periphery of the frame formed by the surrounding panels 11 is provided with a plurality of groups of positioning hole columns 14. The positioning hole columns 14 include a column 141 and positioning holes 142 located at the upper and lower ends. Three of the surrounding panels 11 are provided with pairs of through holes, one of which is provided with two pairs of through holes, and the other two are provided with a pair of through holes. Each through hole is provided with a joint 50, which is used for threading. When not in use, the joint 50 is blocked by a plug.

[0025] The bottom plate 20 is provided with a plurality of first connection holes (blocked in the figure) and fixing holes 21. The first connection holes are used to connect with the box body 10. The fixing holes 21 are located at the outer side areas opposite to the first connection holes and are used to be fixedly connected with the roof equipment.

[0026] The upper surface of the upper cover 30 is provided with corresponding second connection holes 31;

[0027] A pair of sealing gaskets are an upper sealing gasket 60 and a lower sealing gasket 70;

[0028] The upper sealing gasket 60 and the lower sealing gasket 70 are a frame structure, which is the same structure. The upper sealing gasket 60 and the lower sealing gasket 70 are arranged in the shape of the inner edge of the outline of the frame. The bottom plate 20 is pressed onto the lower sealing gasket 70, and the screw 80 passes through the first connecting hole. The lower sealing gasket 70 is connected to the lower end positioning hole of the positioning hole column 14 of the box body 10. The part of the bottom plate 20 with the fixing hole 21 protrudes outward from the outside of the box body 10. The upper cover 30 is covered on the upper sealing gasket 60, and the screw 80 passes through the second connecting hole 31. The upper sealing gasket 60 is connected to the upper end positioning hole of the positioning hole column 14 of the box body 10.

[0029] In a specific implementation, the outer periphery of each enclosure 11 is arranged with side-convex heat dissipation fins 13 at equal intervals along the length direction, and the heat dissipation fins 13 corresponding to adjacent enclosures 11 are arranged perpendicular to each other, and the height of each heat dissipation fin 13 covers the height of the enclosure 11;

[0030] The heat dissipation fins at the junction of two adjacent enclosures 11 are composite heat dissipation fins 15, and the composite heat dissipation fins 15 include a pair of right-angled sides, wherein the outer side of the outer right-angled side 151 is provided with a guide bevel 152, which makes it possible to avoid exposed sharp corners and ensure that other components are not easily damaged;

[0031] The outer edges of the adjacent parallel heat dissipation fins corresponding to the outer right-angled edges 151 of the composite fins 15 are provided with second guiding bevels 131 , which are arranged parallel to the guiding bevels 152 , further ensuring that there are no exposed sharp corners.

[0032] During specific implementation, positioning hole columns 14 are provided at the inner edges of the four corners of the frame, and positioning hole columns 14 are provided at the inner edge of the center in the length direction of each enclosure 11. Avoidance holes 61 are provided at the positions of the positioning holes of the upper sealing gasket 60 and the lower sealing gasket 70 corresponding to the positioning holes of the positioning hole columns 14, so that the overall structure can be assembled stably and reliably and the sealing is reliable.

[0033] When multiple PCB boards need to be installed in the inner cavity of the box, a large amount of heat is likely to accumulate. Each of the surrounding panels is provided with a number of side-convex heat dissipation fins to facilitate heat dissipation and meet the sealing requirements in the external environment. In addition, at least one of the surrounding panels has a reserved connector for wiring operations, which can be sealed when not in use, which is quick and reliable. It has a simple structure and good heat dissipation performance.

[0034] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

[0035] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A heat dissipation box, characterized in that: It includes: The box body comprises four surrounding panels, which are enclosed to form an inner cavity, wherein the inner cavity is used to place various PCB boards, each of which is provided with a plurality of side-convex heat dissipation fins, and the inner periphery of the frame body formed by the four surrounding panels is provided with a plurality of groups of positioning hole columns, wherein the positioning hole columns comprise a column body and positioning holes at the upper and lower ends, and at least one of the four surrounding panels is provided with a through hole, and each through hole is provided with a joint, wherein the joint is used for threading, and when not in use, the joint is blocked by a plug; A bottom plate, on which a plurality of first connection holes and fixing holes are provided, wherein the first connection holes are used to connect with the box body, and the fixing holes are located at the outer side areas opposite to the first connection holes and are used to be fixedly connected with the roof equipment; An upper cover, the outer periphery of the upper surface of which is provided with corresponding second connection holes; and a pair of sealing gaskets, which are an upper sealing gasket and a lower sealing gasket; The upper sealing gasket and the lower sealing gasket are a frame structure, and the upper sealing gasket and the lower sealing gasket are arranged in the shape of the inner edge of the contour of the frame. The bottom plate is pressed onto the lower sealing gasket, and the screws pass through the first connecting hole, and the lower sealing gasket is connected to the lower end positioning hole of the positioning hole column of the box body. The part of the bottom plate provided with the fixing hole protrudes outward from the outside of the box body, and the upper cover is covered on the upper sealing gasket, and the screws pass through the second connecting hole, and the upper sealing gasket is connected to the upper end positioning hole of the positioning hole column of the box body.

2. A heat dissipation box according to claim 1, characterized in that: The outer circumference of each enclosure is arranged with side-convex heat dissipation fins at equal intervals along the side length direction, and the heat dissipation fins corresponding to adjacent enclosures are arranged perpendicular to each other, and the height of each heat dissipation fin covers the height of the enclosure.

3. A heat dissipation box according to claim 2, characterized in that: The heat dissipation fins at the junction of two adjacent enclosures are composite heat dissipation fins, which include a pair of right-angled sides, wherein the outer edges of the outer right-angled sides are provided with guiding beveled edges.

4. A heat dissipation box according to claim 3, characterized in that: The outer edges of the adjacent parallel heat dissipation fins corresponding to the outer right-angled sides of the composite heat dissipation fins are provided with second guiding bevels, and the second guiding bevels are arranged parallel to the guiding bevels.

5. The heat dissipation box according to claim 1, characterized in that: The upper sealing gasket and the lower sealing gasket are the same sealing gaskets.

6. The heat dissipation box according to claim 1, characterized in that: The inner edges of the four corners of the frame are provided with positioning hole columns, the inner edge of the center in the length direction of each enclosure is provided with a positioning hole column, and the upper sealing gasket and the lower sealing gasket are provided with avoidance holes at the positions corresponding to the positioning holes of the positioning hole columns.

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