CN209806304U - Microwave vehicle detector heat radiation structure - Google Patents
Microwave vehicle detector heat radiation structure Download PDFInfo
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- CN209806304U CN209806304U CN201822268150.7U CN201822268150U CN209806304U CN 209806304 U CN209806304 U CN 209806304U CN 201822268150 U CN201822268150 U CN 201822268150U CN 209806304 U CN209806304 U CN 209806304U
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- vehicle detector
- shell
- heat
- backup pad
- casing
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Abstract
The utility model discloses a microwave vehicle detector heat radiation structure, which comprises a shell and a cover plate, wherein one side surface of the shell is provided with an opening, the cover plate closes the opening, the inner side of the shell is fixed with a mounting post, a threaded hole is arranged in the mounting post, a bolt for compressing a circuit board is arranged in the threaded hole, a mounting groove is arranged on the side wall of the mounting post, a clamping block is clamped in the mounting groove, the clamping block is integrally formed with a support plate, the support plate and the clamping block are both made of metal, the outer surfaces of the support plate and the clamping block are coated with heat-conducting silica gel, one end of the; the heat that the circuit board gived off is most directly through backup pad and erection column direct transmission to the shell to give off to outside air by the shell, consequently its radiating efficiency is higher, and wherein the backup pad adopts metal material, and its heat conductivility is better, and the coating of heat conduction silica gel promotes the heat conductivility on the one hand outside the backup pad.
Description
Technical Field
The utility model relates to a radar detection area, in particular to microwave vehicle detector heat radiation structure.
Background
The microwave vehicle detector is a product for detecting traffic data such as traffic flow, average speed, vehicle type, lane occupancy rate and the like in real time by using a digital radar wave detection technology, is widely applied to all-weather traffic detection of highways, urban roads, bridges and the like, and can accurately detect any vehicle on the highways.
The structure of the existing microwave vehicle detector is as disclosed in the patent with the publication number of CN204315083U, and comprises a microwave vehicle detector shell and a power supply module, wherein a microwave detection module is arranged on the microwave vehicle detector shell, a main control module and an RF wireless communication module are arranged in the microwave vehicle detector shell, the RF wireless communication module and the microwave detection module are respectively connected with the main control module, and the main control module is connected with the power supply module. The utility model discloses compare other vehicle detection means and have stability height, with low costs, be convenient for installation and maintenance.
Original components such as circuit board in the microwave vehicle detector casing can produce the heat at the during operation, and the tradition is because there is the interval between circuit board and the casing, and the heat on the circuit board need pass through the air on transmitting the casing, and the rethread casing heat dissipation, and its radiating efficiency is relatively poor.
SUMMERY OF THE UTILITY MODEL
not enough to prior art exists, the utility model aims to provide a microwave vehicle detector heat radiation structure, heat dispersion is better.
The above technical purpose of the present invention can be achieved by the following technical solutions: the utility model provides a microwave vehicle detector heat radiation structure, includes casing and apron, a casing side has an opening, the apron seals the opening, the casing inboard is fixed with the erection column, set up the screw hole in the erection column, threaded hole installs the bolt that is used for compressing tightly the circuit board, the mounting groove has been seted up on the erection column lateral wall, a fixture block is gone into to the card in the mounting groove, fixture block integrated into one piece has the backup pad, backup pad and fixture block are made by the metal, backup pad and fixture block surface coating have heat conduction silica gel, backup pad one end butt casing, the other end and the terminal surface parallel and level of erection column.
When the circuit board is installed in the mode, the circuit board is placed on the installation column, the bolt penetrates through the installation hole in the circuit board and is connected with the threaded hole, the bolt cap of the bolt is abutted to the circuit board, the installation column plays a role in supporting the circuit board, and meanwhile other components can be installed in a gap between the circuit board and the shell; the heat that the circuit board gived off most is direct to be transmitted to the shell through backup pad and erection column directly to give off to the outside air by the shell, consequently its radiating efficiency is higher, wherein the backup pad adopts metal material, its heat conductivility is better, heat conduction silica gel coating is outside the backup pad, promote heat conductivility on the one hand, have elasticity after another terminal surface heat conduction silica gel cools off, consequently the butt face between backup pad and circuit board and the shell can increase, guarantee simultaneously that the butt is reliable, thereby guarantee the radiating efficiency.
Further, the bottom of the threaded hole is provided with a first heat-conducting silica gel sheet.
So, the bolt can the first heat conduction silica gel piece of butt when the screw-in threaded hole, therefore the heat of circuit board also can be through bolt, the quick transmission of first heat conduction silica gel piece to the shell to give off to the outside air by the shell in, further promote the radiating efficiency.
Further, a second heat-conducting silica gel sheet is fixed on the bolt cap of the bolt, and the cover plate is abutted to the second heat-conducting silica gel sheet.
So, the heat also can transmit to the apron through bolt, second heat conduction silica gel piece, dispels partial heat through the apron, further promotes the radiating efficiency.
Furthermore, the supporting plate is arc-shaped, and the inner side surface of the supporting plate is abutted to the outer side surface of the mounting column.
The backup pad can restrict the backup pad slope with the erection column laminating, and circular-arc backup pad is bigger with casing and circuit board area of contact, more does benefit to the heat dissipation.
Furthermore, an elastic limiting part is fixed in the shell, and the outer side surface of the supporting plate is abutted to the elastic limiting part.
Although the supporting plate is limited by the friction force between the clamping block and the mounting groove and the friction force between the circuit board and the shell, the supporting plate moves in the long-term use process or due to accidents, and therefore the elastic limiting piece is added to limit the movement of the supporting plate.
Furthermore, the elastic limiting part comprises a connecting sheet with one end fixed with the shell and a limiting sheet integrally formed with the other end of the connecting sheet, the connecting sheet is arranged upwards in an inclined mode from one end fixed with the shell, the limiting sheet is arranged downwards in an inclined mode from one end connected with the connecting sheet, and the lower end of the limiting sheet is arranged at an interval with the shell.
The butt is personally submitted the slope and is set up downwards and can play the guide effect, the installation of the backup pad of being convenient for.
Further, the mounting groove sets up two with erection column axis symmetry, backup pad and fixture block all correspond and set up two.
The two support plates can increase the heat transfer area.
Furthermore, a groove is formed in one surface, away from the mounting column, of the shell, and the groove is opposite to the mounting column.
The arrangement of the groove enables the thickness of the shell to be thin, the heat transfer path is shorter, and heat can be easily dissipated to the outside air.
To sum up, the utility model discloses following beneficial effect has: this scheme is through increasing the backup pad, improves bolt construction etc. and effectively promotes microwave vehicle detector's heat dispersion.
Drawings
FIG. 1 is a schematic structural diagram of an embodiment;
FIG. 2 is a sectional view of the embodiment;
FIG. 3 is an enlarged view of portion A of FIG. 2;
Fig. 4 is a schematic view of the first and second connectors mated.
Reference numerals: 1. a housing; 11. an opening; 12. a placement groove; 13. a sealing groove; 14. a groove; 2. a cover plate; 3. an annular frame; 4. a sealing strip; 5. mounting a column; 51. a threaded hole; 52. a first heat-conducting silica gel sheet; 53. a bolt; 54. a second heat-conducting silica gel sheet; 55. mounting grooves; 56. a clamping block; 57. a support plate; 61. connecting sheets; 62. a limiting sheet; 7. a first connecting member; 71. pressing edges; 72. a connecting edge; 73. a stressed edge; 8. a second connecting member; 81. inserting plates; 82. a first limit strip; 83. a second limit strip; 84. a closing part; 91. a limiting column; 92. an elastic ring; 93. a through hole; 94. a first limit groove; 95. a second limit groove.
Detailed Description
The present embodiment is only for explaining the present invention, and it is not limited to the present invention, and those skilled in the art can make modifications to the present embodiment without inventive contribution as required after reading the present specification, but all of them are protected by patent laws within the scope of the claims of the present invention.
A heat radiation structure of a microwave vehicle detector, as shown in figure 1, comprises a shell 1, a cover plate 2 and a pressing piece for connecting the shell 1 and the cover plate 2.
As shown in fig. 2, the casing 1 is a rectangular parallelepiped, hollow, and has an opening 11 on one side. An annular frame 3 is fixed outside the lateral wall of casing 1, annular frame 3 and casing 1 integrated into one piece, and the outer terminal surface of annular frame 3 and the terminal surface parallel and level of opening 11 department, opening 11 department set up one with opening 11 intercommunication standing groove 12, apron 2 is located standing groove 12 and the thickness of apron 2 is the same with the degree of depth of standing groove 12. A sealing groove 13 is formed in the bottom of the placing groove 12, a sealing strip 4 is arranged in the sealing groove 13, the thickness of the sealing strip 4 is larger than the depth of the sealing groove 13, and the thickness of the sealing groove 13 is about 1 mm.
As shown in fig. 2, a plurality of mounting posts 5 are fixed at the bottom of the housing 1, and the number of the mounting posts is set according to the requirement. Threaded hole 51 is opened in the erection column 5, and threaded hole 51 extends along erection column 5 axial, and first heat conduction silica gel piece 52 has been placed to threaded hole 51 bottom. A bolt 53 for pressing the circuit board is installed in the threaded hole 51, a second heat-conducting silicone sheet 54 is fixed on a bolt cap of the bolt 53, and the cover plate 2 abuts against the second heat-conducting silicone sheet 54. The mounting groove 55 has been seted up to the symmetry on the lateral wall of erection column 5, a fixture block 56 has been gone into to the card in the mounting groove 55, and every fixture block 56 integrated into one piece has a backup pad 57, and backup pad 57 and fixture block 56 are made by copper, and backup pad 57 and fixture block 56 surface coating have heat conduction silica gel, and the height of backup pad 57 is the same with erection column 5 height, and its one end butt casing 1, the other end and the terminal surface parallel and level of erection column 5. The support plate 57 is formed in a semicircular arc shape, and the inner side surface of the support plate 57 abuts against the outer side surface of the mounting post 5.
As shown in fig. 2, the two sides of each mounting post 5 are provided with an elastic limiting part abutting against the supporting plate 57, the elastic limiting part is made of elastic steel, the elastic limiting part includes a connecting sheet 61 with one end welded to the housing 1 and a limiting sheet 62 integrally formed with the other end of the connecting sheet 61, the connecting sheet 61 is inclined and upwardly arranged from one end fixed to the housing 1, the limiting sheet 62 is inclined and downwardly arranged from one end connected to the connecting sheet 61, and the lower end of the limiting sheet 62 is spaced from the housing 1.
As shown in fig. 2, a groove 14 is formed on a surface of the housing 1 facing away from the mounting post 5, the groove 14 is opposite to the mounting post 5, and the groove 14 is a circular groove having a diameter identical to that of the support plate 57.
As shown in fig. 3 to 4, the pressing member is made of stainless steel, and the pressing member is provided with four edges which respectively press the cover plate 2, and includes a first connecting member 7 and a second connecting member 8. The first connecting piece 7 comprises a pressing edge 71 parallel to the cover plate 2, a connecting edge 72 vertically fixed with the pressing edge 71, and a force-bearing edge 73 vertically fixed with the connecting edge 72, wherein the pressing edge 71, the connecting edge 72 and the force-bearing edge 73 are integrally formed.
As shown in fig. 3-4, a first limiting groove 94 is formed on one side of the force-receiving edge 73 close to the edge-receiving edge 71, and a second limiting groove 95 is formed on the end surface of the annular frame 3 away from the cover plate 2. The second connecting piece 8 comprises an inserting plate 81 arranged in parallel with the cover plate 2, a first limiting strip 82 vertically fixed at one side of the inserting plate 81 and inserted into the first limiting groove 94, and a second limiting strip 83 vertically fixed on the inserting plate 81 and inserted into the second limiting groove 95, wherein the inserting plate 81, the first limiting strip 82 and the second limiting strip 83 are integrally formed; the distance between the pressing edge 71 and the force-bearing edge 73 is the same as the sum of the thicknesses of the inserting plate 81 and the annular frame 3; one end of the inserting plate 81 far away from the first limiting groove 94 abuts against the side wall of the shell 1. The force-bearing edge 73 and the side wall of the shell 1 are arranged at intervals, the inserting plate 81 is integrally formed into a closed part 84 for filling the gap between the force-bearing edge 73 and the shell 1, and the closed part 84 is of a plate-shaped structure.
As shown in fig. 3-4, the edge pressing 71, the annular frame 3 and the inserting plate 81 are correspondingly provided with round holes, the diameter of the limiting column 91 is the same as that of the round holes, two limiting columns 91 are arranged and are respectively positioned at two ends of the edge pressing 71, the limiting column 91 sequentially penetrates through the round holes on the pressing plate, the annular frame 3 and the inserting plate 81 to be abutted against the stressed edge 73, an elastic ring 92 (made of rubber) is bonded on the edge pressing 71, the diameter of the elastic ring 92 is smaller than that of the limiting column 91, and the limiting column 91 penetrates through the elastic ring 92 to be in interference fit with the elastic. The force-bearing edge 73 is provided with a through hole 93, and the diameter of the through hole 93 is smaller than that of the limiting column 91.
When the cover plate 2 is installed, the sealing strip 4 is firstly placed into the sealing groove 13, the cover plate 2 is pressed up (at the moment, the sealing strip 4 is not compressed), the first connecting piece 7 is horizontally moved, the pressing sheet is abutted to the outer surface of the cover plate 2, the sealing strip 4 is compressed by pressing the cover plate 2, the outer surface of the cover plate 2 is flush with the end surface of the annular frame 3, and the second connecting piece 8 is inserted, so that the pressing of one side of the cover plate 2 can be completed; the remaining three hold-down members are installed according to the principle of first inserting the first connector 7 and then inserting the second connector 8.
Claims (8)
1. The utility model provides a microwave vehicle detector heat radiation structure, includes casing (1) and apron (2), casing (1) a side has an opening (11), apron (2) seal opening (11), casing (1) inboard is fixed with erection column (5), set up screw hole (51) in erection column (5), install in screw hole (51) and be used for bolt (53) that compress tightly the circuit board, its characterized in that: mounting groove (55) have been seted up on erection column (5) lateral wall, a fixture block (56) is gone into to card in mounting groove (55), fixture block (56) integrated into one piece has backup pad (57), backup pad (57) and fixture block (56) are made by the metal, backup pad (57) and fixture block (56) surface coating have heat conduction silica gel, backup pad (57) one end butt casing (1), the terminal surface parallel and level of the other end and erection column (5).
2. The microwave vehicle detector heat dissipation structure of claim 1, wherein: the bottom of the threaded hole (51) is provided with a first heat-conducting silica gel sheet (52).
3. The microwave vehicle detector heat dissipation structure of claim 1, wherein: and a second heat-conducting silica gel sheet (54) is fixed on the bolt cap of the bolt (53), and the cover plate (2) is abutted to the second heat-conducting silica gel sheet (54).
4. The microwave vehicle detector heat dissipation structure of claim 1, wherein: the supporting plate (57) is arc-shaped, and the inner side surface of the supporting plate (57) is abutted against the outer side surface of the mounting column (5).
5. The microwave vehicle detector heat dissipation structure of claim 4, wherein: an elastic limiting part is fixed in the shell (1), and the outer side surface of the supporting plate (57) is abutted to the elastic limiting part.
6. The microwave vehicle detector heat dissipation structure of claim 5, wherein: elasticity locating part includes connection piece (61) that one end and casing (1) are fixed, spacing piece (62) with connection piece (61) other end integrated into one piece, connection piece (61) upwards set up from the one end slope fixed with casing (1), spacing piece (62) are connected one end slope from connection piece (61) and are set up downwards and the lower extreme and the casing (1) interval of spacing piece (62).
7. The microwave vehicle detector heat dissipation structure of claim 4, wherein: the mounting grooves (55) are symmetrically arranged in two directions along the axis of the mounting column (5), and the supporting plate (57) and the clamping blocks (56) are correspondingly arranged in two directions.
8. The microwave vehicle detector heat dissipation structure of claim 1, wherein: a groove (14) is formed in one surface, deviating from the mounting column (5), of the shell (1), and the groove (14) is opposite to the mounting column (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822268150.7U CN209806304U (en) | 2018-12-29 | 2018-12-29 | Microwave vehicle detector heat radiation structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822268150.7U CN209806304U (en) | 2018-12-29 | 2018-12-29 | Microwave vehicle detector heat radiation structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209806304U true CN209806304U (en) | 2019-12-17 |
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ID=68819286
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201822268150.7U Active CN209806304U (en) | 2018-12-29 | 2018-12-29 | Microwave vehicle detector heat radiation structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209806304U (en) |
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2018
- 2018-12-29 CN CN201822268150.7U patent/CN209806304U/en active Active
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