Positioning device with heat dissipation effect

Abstract

The invention provides a positioning device with a heat dissipation effect, which comprises a limiting mechanism, an accommodating space is arranged in a sleeve of the limiting mechanism, an adjusting part can be assembled in the accommodating space, a non-planar heat dissipation part is arranged outside the sleeve, the adjusting part comprises a combining part and an elastic part sleeved on the combining part, and the elastic part is arranged on the combining part. A connecting part is arranged on one side of the combining part, an operating part is arranged on the other side of the combining part, the sleeve of the limiting mechanism is aligned to the axial outer side of the connecting part, the connecting part on one side of the combining part can be assembled at the connecting part on one side of the butt joint part, namely, a preset first plate is assembled at the butt joint part of the base, and a preset second plate is assembled at the bottom of the sleeve; the sleeve of the limiting mechanism can assist in heat dissipation of the preset second plate.

Description

Technical Field

[0001] The present invention relates to a positioning device with a heat dissipation effect, and in particular to a positioning device that can assist a preset plate and a heating element on the preset plate in dissipating heat. The device comprises a sleeve, a coupling and an elastic element of a limiting mechanism assembled on a base, which can be combined and assembled with a preset first and second plate to achieve the purpose of assisting the preset plate and the heating element on the preset plate in dissipating heat. Background Art

[0002] With the rapid development of industrial technology, various industrial products such as computers, televisions, telephones, refrigerators, washing machines, wardrobes, drawers, or desks have long become indispensable items in people's lives. Most of these industrial products are assembled from multiple components, such as the casing of a computer host, the circuit board and heat sink inside a television casing, the desktop panel and supporting side panels of a desk, or the board-to-board assembly between two opposing circuit boards. The components are mostly assembled together using screws, making the industrial product disassembled into multiple components for easy transportation. The assembled industrial product can also be partially disassembled for repair or replacement.

[0003] When used in computer housings, circuit boards inside TV housings and their heat sinks, or for board-to-board assembly between two opposing circuit boards, a heat sink must be provided to assist the heat sink in dissipating heat. The heat sink assembled on the heat sink can also be fixed to the circuit boards around the heat sink by screws. However, space must be left around the heat sink for the locking screws, which will not be able to assist in heat dissipation. This will affect the heat dissipation effect of the heat sink and cause trouble and confusion during the production of the heat sink.

[0004] Furthermore, since the aforementioned industrial products or circuit boards are assembled and connected together by screws, the surfaces of the components pressed by the screw heads during assembly often suffer damage such as dents and cracks due to overtightening of the screws. To address the aforementioned component damage caused by screw fastening, some manufacturers use welding to fix the components together. However, this design makes it difficult to disassemble some components of the assembled industrial product, which in turn makes it difficult to repair or replace components.

[0005] Therefore, how to solve the current problems and troubles caused by locking with screws, such as the easy locking and damage of the panels, difficulty in disassembly, and the troubles and shortcomings of assembling on the panels, which affect the structure of the panels and poor performance, are the areas that relevant manufacturers engaged in this industry are urgently researching and improving. Summary of the Invention

[0006] Therefore, in view of the above problems and deficiencies, the main purpose of the present invention is to provide a positioning device with heat dissipation effect.

[0007] The present invention provides a positioning device with a heat dissipation effect, in which an accommodating space is provided inside the sleeve of a limiting mechanism, and an adjustment part can be assembled in the accommodating space, and a non-planar heat dissipation part is provided on the outside of the sleeve. The adjustment part includes a coupling and an elastic part sleeved on the coupling, and a connecting part is provided on one side of the coupling for assembly at a connecting part on one side of a docking part of a base, and an operating part is provided on the other side of the coupling, so that the first positioning hole of a preset first plate can be assembled at the docking part of the base, and the bottom of the sleeve can be assembled at the second positioning hole of a preset second plate, so that the preset first plate and the preset second plate can be conveniently combined or disassembled, and the purpose of the sleeve of the limiting mechanism assisting the preset second plate in heat dissipation can be achieved.

[0008] Among them, the sleeve of the limiting mechanism is an external integrated non-planar heat dissipation part, and the heat dissipation part can be a plurality of fins formed on the outside of the sleeve in a two-phase symmetrical shape, a plurality of fins formed on the outside of the sleeve in a cross-shaped symmetrical shape, a plurality of fins formed on the outside of the sleeve in a polygonal symmetrical shape, a plurality of fins formed on the outside of the sleeve in a vortex shape, or a plurality of fins formed on the outside of the sleeve in a radial shape, and the sleeve can be made of aluminum, copper, aluminum alloy or copper alloy, and the thermal conductivity of the sleeve can be between 70 and 500 W / mk; In addition, the sleeve of the limiting mechanism includes an inner cylinder and a cover covering the outer surface of the inner cylinder. The heat dissipation cylinder has a non-planar heat dissipation portion formed on the outside of the heat dissipation cylinder. The heat dissipation portion can be a plurality of fins formed on the outside of the heat dissipation cylinder in a two-phase symmetrical shape, a plurality of fins formed on the outside of the heat dissipation cylinder in a cross-shaped symmetrical shape, a plurality of fins formed on the outside of the heat dissipation cylinder in a polygonal symmetrical shape, a plurality of fins formed on the outside of the heat dissipation cylinder in a vortex shape, or a plurality of fins formed on the outside of the heat dissipation cylinder in a radial shape, etc. The inner cylinder and the heat dissipation cylinder can be made of aluminum, copper, aluminum alloy or copper alloy, etc. respectively, and the thermal conductivity of the inner cylinder and the heat dissipation cylinder can be between 70 and 500 W / mk.

[0009] Among them, a stop portion is provided on the outside of one side of the accommodating space of the sleeve of the limiting mechanism, which can limit the coupling to be located inside the accommodating space of the sleeve, so that the coupling is located inside the accommodating space and is displaced longitudinally by lifting and lowering, and the operating portion on one side of the coupling is exposed outside the stop portion, and the stop portion is in a circular arc shape and shrinks inward to form a shrinkage, so as to limit the coupling to be located inside the accommodating space of the sleeve, and the coupling is provided with a flange portion on the outside near the operating portion, which can be supported on the inner edge surface of the shrinkage of the stop portion, and the outside of the other side of the accommodating space relative to the stop portion is provided with a combination portion for assembling a preset second plate, and a through hole with a reduced aperture is provided on one side of the accommodating space near the combination portion, and an inner shoulder is formed at a position adjacent to the through hole and the accommodating space.

[0010] In which, the operating part of the coupling side of the limiting mechanism is the outside of the stop part on one side of the accommodating space of the sleeve that can be exposed, and the operating part includes a docking unit and an operating area, and the docking unit of the operating part is for assembling at least one or more of another positioning devices, and the other positioning device includes another limiting mechanism, then the other limiting mechanism includes another sleeve, another adjustment part located inside the other sleeve, then the inside of the other sleeve is provided with another accommodating space for assembling the other adjustment part, and the outside is provided with another non-planar heat dissipation part, and the other adjustment part includes another coupling and another elastic part sleeved on the other coupling, and another connecting part is provided on one side of the other coupling and another operating part is provided on the other side, then the other operating part includes another docking unit and another operating area, so that the other connecting part on one side of the other coupling can be aligned and assembled at the docking unit of the operating area of the operating part, and another combination part is provided on one side of the other sleeve to abut against the stop part.

[0011] Among them, the operating area of the operating part on one side of the combining part and the other operating area of the other operating part of the other combining part can be various shapes such as star-shaped grooves, square grooves, hexagonal grooves or polygonal grooves respectively; and between the external stop part on one side of the accommodating space of the sleeve and the other combination part of the other sleeve, there is a third positioning hole that can be assembled on a preset third plate; the preset second plate can be a heat dissipation device, a circuit board or a plate, etc., and the heat dissipation device includes a base plate that is supported on the surface of the preset heating element provided on the preset first plate, a plurality of heat dissipation fins formed on the surface of the base plate, etc., and the preset third plate can also be another heat dissipation device, circuit board or plate, etc., then the other heat dissipation device includes another base plate that is supported on the preset second plate, a plurality of other heat dissipation fins formed on the surface of the other base plate, etc.

[0012] Among them, the base is assembled on the limiting mechanism, and a connecting portion is provided on one side of the docking portion of the base for the sleeve of the limiting mechanism to be located axially outside the connecting portion, and the base further includes a chassis body, a docking portion with a reduced outer diameter formed on the chassis body, and a connecting portion with a reduced outer diameter formed on the other side of the docking portion relative to the chassis body, and a preset first plate can be assembled at the docking portion; and the connecting portion on one side of the base and the connecting portion on one side of the coupling member of the limiting mechanism can be a structure that can be assembled or disassembled, such as a screw and a screw hole, a pin and a pin hole, or a tapered column and a tapered hole.

[0013] The advantage of the present invention is that it can assist in heat dissipation. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a three-dimensional appearance diagram of the first embodiment of the present invention.

[0015] Figure 2 It is a perspective exploded view of the first embodiment of the present invention.

[0016] Figure 3 This is a three-dimensional exploded view from another perspective of the first embodiment of the present invention.

[0017] Figure 4 It is a side cross-sectional exploded view of the first embodiment of the present invention.

[0018] Figure 5 It is a side sectional view of the first embodiment of the present invention.

[0019] Figure 6 This is a three-dimensional appearance diagram of the application method of the first embodiment of the present invention.

[0020] Figure 7 This is a three-dimensional appearance diagram (1) of a preferred embodiment of the sleeve of the present invention.

[0021] Figure 8 This is a three-dimensional appearance diagram (2) of a preferred embodiment of the sleeve of the present invention.

[0022] Figure 9 This is a three-dimensional appearance diagram of a preferred embodiment of the sleeve of the present invention (3).

[0023] Figure 10 This is a three-dimensional appearance diagram (four) of a preferred embodiment of the sleeve of the present invention.

[0024] Figure 11 For the present invention Figure 10 3D cross-sectional view of .

[0025] Figure 12 It is a perspective exploded view of the second embodiment of the present invention.

[0026] Figure 13 This is a three-dimensional exploded view from another perspective of the second embodiment of the present invention.

[0027] Figure 14 It is a side cross-sectional view of a second embodiment of the present invention.

[0028] Figure 15 This is a three-dimensional appearance diagram of the application method of the third embodiment of the present invention.

[0029] Figure 16 It is a side sectional view of a third embodiment of the present invention.

[0030] Explanation of reference numerals: 1-limiting mechanism; 11-sleeve; 110-accommodating space; 111-heat dissipation portion; 1111-fin; 112-stop portion; 1121-neck; 1122-inner edge surface; 113-combining portion; 114-through hole; 115-inner shoulder; 12-adjusting portion; 121-joining member; 1211-flange portion; 122-elastic member; 123-connecting portion; 124-operating portion; 125-docking unit; 126-operating area; 13-inner cylinder; 14-heat dissipation cylinder; 2-base; 21-docking portion; 22-connecting portion; 23-chassis body; 3-first plate; 30-first fixed portion Positioning hole; 31-heating element; 4-second plate; 40-second positioning hole; 41-heating device; 411-bottom plate; 412-heating fins; 5-another limiting mechanism; 51-another sleeve; 510-another accommodating space; 511-another heat dissipation part; 52-another adjusting part; 521-another combining part; 522-another elastic part; 523-another connecting part; 524-another operating part; 525-another docking unit; 526-another operating area; 527-another combining part; 6-third plate; 60-third positioning hole; 61-another heat dissipation device; 611-another bottom plate; 612-another heat dissipation fins. DETAILED DESCRIPTION

[0031] To achieve the above-mentioned objectives and effects, the technical means, structures, and implementation methods adopted by the present invention are described in detail below with reference to the accompanying drawings for the characteristics and functions of the preferred embodiments of the present invention so as to provide a complete understanding.

[0032] See also Figures 1 to 11 As shown in the figure, it can be clearly seen that the positioning device with heat dissipation effect of the present invention includes a limiting mechanism 1, wherein:

[0033] The limiting mechanism 1 includes a sleeve 11 and an adjusting portion 12 located inside the sleeve 11. The sleeve 11 has an accommodating space 110 inside for assembling the adjusting portion 12, and a non-planar heat dissipation portion 111 on the outside. The adjusting portion 12 includes a coupling 121 and an elastic portion 122 sleeved on the coupling 121. A connecting portion 123 is provided on one side of the coupling 121 and an operating portion 124 is provided on the other side.

[0034] A base 2 can be set below the sleeve 11 relative to the limiting mechanism 1, and a docking portion 21 is provided on the base 2, and a connecting portion 22 is provided on one side of the docking portion 21, so that the connecting portion 123 can be aligned and assembled at the connecting portion 22, and the base 2 further includes a chassis body 23, a docking portion 21 with a reduced outer diameter formed on the chassis body 23, and a connecting portion 22 with a reduced outer diameter formed on the other side of the docking portion 21 relative to the chassis body 23, and a first positioning hole 30 of a preset first plate 3 can be assembled at the docking portion 21.

[0035] The connecting portion 123 on one side of the coupling member 121 of the limiting mechanism 1 of the present invention is assembled with the connecting portion 22 on one side of the base 2, and the connecting portion 123 and the connecting portion 22 can be structures that can be assembled or disassembled, such as a screw and a screw hole, a pin and a pin hole, or a tapered column and a tapered hole.

[0036] Furthermore, the above-mentioned limiting mechanism 1 of the present invention has a sleeve 11 that can be formed with a non-planar heat dissipation portion 111 on the outside. The heat dissipation portion 111 can be a plurality of fins 1111 formed on the outside of the sleeve 11 in a two-phase symmetrical shape (please also refer to Figure 1 、 Figure 2 、 Figure 3 、 Figure 6 As shown), a plurality of fins 1111 formed on the outside of the sleeve 11 in a cross-shaped symmetrical shape (please also refer to Figure 7 As shown), multiple fins 1111 formed on the outside of the sleeve 11 in a polygonal symmetrical shape, multiple fins 1111 formed on the outside of the sleeve 11 in a spiral shape (please also refer to Figure 8 As shown) or multiple fins 1111 formed radially on the outside of the sleeve 11 (please also refer to Figure 9 The sleeve 11 may be made of aluminum, copper, aluminum alloy or copper alloy, and the thermal conductivity of the sleeve 11 may be between 70 and 500 W / mk. The sleeve 11 of the limiting mechanism 1 may further include an inner cylinder 13 and a heat dissipation cylinder 14 covering the outer surface of the inner cylinder 13 (please also refer to Figure 10 、 Figure 11 As shown), a non-planar heat dissipation portion 111 is formed on the outside of the heat dissipation cylinder 14. The heat dissipation portion 111 can be a plurality of fins 1111 formed on the outside of the heat dissipation cylinder 14 in a two-phase symmetrical shape, a plurality of fins 1111 formed on the outside of the heat dissipation cylinder 14 in a cross-shaped symmetrical shape, a plurality of fins 1111 formed on the outside of the heat dissipation cylinder 14 in a polygonal symmetrical shape, a plurality of fins 1111 formed on the outside of the heat dissipation cylinder 14 in a spiral shape, or a plurality of fins 1111 formed on the outside of the heat dissipation cylinder 14 in a radial shape, etc. The inner cylinder 13 and the heat dissipation cylinder 14 can be made of aluminum, copper, aluminum alloy or copper alloy, etc., respectively, and the thermal conductivity of the inner cylinder 13 and the heat dissipation cylinder 14 can be between 70 and 500 W / mk.

[0037] Furthermore, the limiting mechanism 1 of the present invention has a stopper 112 provided on the outside of the accommodating space 110 of the sleeve 11. The stopper 112 is arc-shaped and shrinks inward from one side of the sleeve 11 to form a shrinkage 1121, so as to limit the position of the coupling member 121 in the accommodating space 110 of the sleeve 11, so that the coupling member 121 can be located in the accommodating space 110 and move vertically, and the operating portion 124 on one side of the coupling member 121 is exposed outside the shrinkage 1121 of the stopper 112, so that the coupling member 121 can be located in the accommodating space 110 and move vertically, and the operating portion 124 on the .... The component 121 is provided with a flange portion 1211 protruding from the outside of the operating portion 124, which can be abutted against the inner edge surface 1122 of the shrinkage 1121 of the stop portion 112. The outside of the accommodating space 110 on the other side of the stop portion 112 is provided with a combination portion 113, a second positioning hole 40 for assembling a preset second plate 4, and a through hole 114 with a reduced aperture on one side of the accommodating space 110 near the combination portion 113, and an inner shoulder 115 is formed at a position adjacent to the through hole 114 and the accommodating space 110.

[0038] Also, please refer to Figures 1 to 16 As shown, the adjustment portion 12 of the limiting mechanism 1 of the present invention, the operating portion 124 on the side of the coupling member 121 is exposed to the outside of the stopper 112 on the side of the accommodating space 110 of the sleeve 11, and the operating portion 124 includes a docking unit 125 and an operating area 126, and the docking unit 125 of the operating portion 124 is for assembling at least one or more other positioning devices, and the other positioning device includes another limiting mechanism 5 (please also refer to Figure 15 、 Figure 16 As shown), the other limiting mechanism 5 includes another sleeve 51 and another adjusting portion 52 located inside the other sleeve 51. The other sleeve 51 is provided with another accommodating space 510 for assembling the other adjusting portion 52 inside, and the outside is provided with another non-planar heat dissipation portion 511, and the other adjusting portion 52 includes another coupling member 521 and another elastic member 522 sleeved on the other coupling member 521, and the other coupling member 521 is provided with another connecting portion 523 on one side and another operating portion 524 on the other side, and the other operating portion 524 includes another docking unit 525 and another operating area 526, so that the other connecting portion 523 on one side of the other coupling member 521 can be aligned and assembled at the docking unit 125 of the operating area 126 of the operating portion 124, and the other sleeve 51 is provided with another combination portion 527 on one side that abuts against the stop portion 112, and the other combination portion 527 can be used to be assembled at the third positioning hole 60 of the preset third plate 6.

[0039] In addition, the operating area 126 of the operating part 124 on one side of the coupling 121 of the present invention and the other operating area 526 of the other operating part 524 of the other coupling 521 can be various shapes such as a star-shaped groove, a square groove, a hexagonal groove or a polygonal groove respectively; and between the external stop part 112 on one side of the accommodating space 110 of the sleeve 11 and the other combination part 527 of the other sleeve 51 is a third positioning hole 60 that can be assembled on the preset third plate 6; the preset second plate 4 can be a heat dissipation device 41, a circuit board or a plate, etc., and the heat dissipation device 41 includes a bottom plate 411 that is supported on the surface of the preset heating element 31 provided on the preset first plate 3, a plurality of heat dissipation fins 412 formed on the surface of the bottom plate 411, etc., and the preset third plate 6 can also be another heat dissipation device 61, a circuit board or a plate, etc., then the other heat dissipation device 61 includes another bottom plate 611 that is supported on the preset second plate 4, a plurality of other heat dissipation fins 612 formed on the surface of the other bottom plate 611, etc.

[0040] The docking portion 21 of the base 2 of the present invention can be assembled at the first positioning hole 30 of the preset first plate 3 by welding, splicing or riveting, and the combination portion 113 of the sleeve 11 of the limiter 1 can also be assembled at the second positioning hole 40 of the preset second plate 4 by welding, splicing or riveting; the other combination portion 527 of the other sleeve 51 can also be assembled at the third positioning hole 60 of the preset third plate 6 by welding, splicing or riveting.

[0041] The limiting mechanism 1 of the positioning device of the present invention can be assembled on the base 2, and can be assembled on the preset second plate 4, the preset first plate 3 or the preset third plate 6 using at least one assembly or more than one group of limiting mechanisms 1 and base 2 of the positioning device, so that the heat energy generated by the preset heating element 31 on the preset first plate 3 during operation can be assisted to be quickly dissipated outwards through the preset second plate 4 or the preset third plate 6. At the same time, the heat dissipation area and region can be effectively increased by means of the heat dissipation portion 111 of the sleeve 11 of at least one or more than one group of limiting mechanisms 1, so as to achieve the purpose of assisting the preset first plate 3, the preset second plate 4 or the preset third plate 6 in heat dissipation and cooling, and can accelerate the rapid dissipation of the heat energy generated by the preset heating element 31, the preset first plate 3, the preset second plate 4 or the preset third plate 6 during operation, and can also have the effect of strengthening the structural strength of the assembly between the preset first plate 3, the preset second plate 4 or the preset third plate 6, etc., which are unexpected effects.

[0042] The above description is merely a preferred embodiment of the present invention and does not limit the scope of the present invention. Therefore, any simple modifications and equivalent structural changes made by using the contents of the present invention description and drawings should be included in the scope of the present invention and are hereby stated.

Claims

1. A positioning device with a heat dissipation effect, comprising a limiting mechanism, characterized in that: The limiting mechanism includes a sleeve and an adjustment part located inside the sleeve. The sleeve is provided with a accommodating space for assembling the adjustment part inside and a non-planar heat dissipation part outside. The adjustment part includes a coupling and an elastic part mounted on the coupling, and the coupling is provided with a connecting part on one side and an operating part on the other side.

2. The positioning device with heat dissipation effect according to claim 1, characterized in that: The sleeve of the limiting mechanism is the external integrated non-planar heat dissipation part, and the heat dissipation part is a plurality of fins formed on the outside of the sleeve in a two-phase symmetrical shape, a plurality of fins formed on the outside of the sleeve in a cross-shaped symmetrical shape, a plurality of fins formed on the outside of the sleeve in a polygonal symmetrical shape, a plurality of fins formed on the outside of the sleeve in a spiral shape, or a plurality of fins formed on the outside of the sleeve in a radial shape. The sleeve is made of aluminum, copper, aluminum alloy or copper alloy, and the thermal conductivity of the sleeve is between 70 and 500 W / mk.

3. The positioning device with heat dissipation effect according to claim 1, characterized in that: The sleeve of the limiting mechanism includes an inner cylinder and a heat dissipation cylinder covering the outside of the inner cylinder, and the non-planar heat dissipation part is formed on the outside of the heat dissipation cylinder. The heat dissipation part is a plurality of fins formed on the outside of the heat dissipation cylinder in a two-phase symmetrical shape, a plurality of fins formed on the outside of the heat dissipation cylinder in a cross-shaped symmetrical shape, a plurality of fins formed on the outside of the heat dissipation cylinder in a polygonal symmetrical shape, a plurality of fins formed on the outside of the heat dissipation cylinder in a vortex shape, or a plurality of fins formed on the outside of the heat dissipation cylinder in a radial shape. The inner cylinder and the heat dissipation cylinder are made of aluminum, copper, aluminum alloy or copper alloy, respectively, and the thermal conductivity of the inner cylinder and the heat dissipation cylinder is between 70 and 500 W / mk.

4. The positioning device with heat dissipation effect according to claim 1, wherein: A stop portion for limiting the coupling is provided on the outside of one side of the accommodating space of the sleeve of the limiting mechanism, so that the coupling can be located in the accommodating space and can be longitudinally lifted and lowered, and the operating portion on one side of the coupling is exposed outside the stop portion, and the coupling is provided with a flange portion on the outside near the operating portion, which is supported against the inner edge surface of the stop portion, and a combination portion for assembling a preset second plate is provided on the outside of the other side of the accommodating space relative to the stop portion, and a through hole with a reduced aperture is provided on one side of the accommodating space near the combination portion, and an inner shoulder is formed at a position adjacent to the through hole and the accommodating space.

5. The positioning device with heat dissipation effect according to claim 4, characterized in that: The operating part on the side of the combining part of the limiting mechanism is exposed to the outside of the stop part on the side of the accommodating space of the sleeve, and the operating part includes a docking unit and an operating area, and the docking unit of the operating part is for assembling at least one set of another positioning device, and the other positioning device includes another limiting mechanism, and the other limiting mechanism includes another sleeve, another adjustment part located inside the other sleeve, another accommodating space for assembling the other adjustment part is provided inside the other sleeve, and another non-planar heat dissipation part is provided on the outside, and the other adjustment part includes another combining part and an elastic part sleeved on the other combining part, and another connecting part is provided on one side of the other combining part, and another operating part is provided on the other side, and the other operating part includes another docking unit and another operating area, so that the other connecting part on one side of the other combining part can be aligned and assembled at the docking unit of the operating area of the operating part, and another combination part is provided on one side of the other sleeve to abut against the stop part.

6. The positioning device with heat dissipation effect according to claim 5, characterized in that: The operating area of the operating part on one side of the combining part and the other operating area of the other operating part of the other combining part are respectively in the shape of a star-shaped groove, a square groove, a hexagonal groove or other polygonal grooves; and a preset third plate is assembled between the stop part on the outside of the accommodating space on one side of the sleeve and the other combination part of the other sleeve, and the preset third plate is another heat dissipation device, a circuit board or a plate, and the other heat dissipation device includes another base plate supported on the preset second plate and a plurality of other heat dissipation fins formed on the surface of the other base plate.

7. The positioning device with heat dissipation effect according to claim 5, characterized in that: The limiting mechanism is provided with a base for docking assembly below the sleeve, and the base includes a docking portion and a connecting portion located on one side of the docking portion for assembling the connecting portion on one side of the coupling member, and the base includes a chassis body, the docking portion with a reduced outer diameter formed on the chassis body, and a connecting portion with a reduced outer diameter formed on the other side of the docking portion relative to the chassis body, and a preset first plate is assembled at the docking portion.

8. The positioning device with heat dissipation effect according to claim 7, characterized in that: The preset second plate is a heat dissipation device, which includes a bottom plate that is supported on the surface of the preset heating element arranged on the preset first plate, and a plurality of heat dissipation fins formed on the surface of the bottom plate.

9. The positioning device with heat dissipation effect according to claim 7, characterized in that: The connecting portion on one side of the combining piece and the connecting portion on one side of the base are respectively a screw rod and a screw hole, a latch pin and a pin hole, or a tapered column and a tapered hole.

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