CN114673972B - Heat abstractor and fishing lamp - Google Patents
Heat abstractor and fishing lamp Download PDFInfo
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- CN114673972B CN114673972B CN202210604653.5A CN202210604653A CN114673972B CN 114673972 B CN114673972 B CN 114673972B CN 202210604653 A CN202210604653 A CN 202210604653A CN 114673972 B CN114673972 B CN 114673972B
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
- F21V29/00—Protecting lighting devices from thermal damage; Cooling or heating arrangements specially adapted for lighting devices or systems
- F21V29/50—Cooling arrangements
- F21V29/70—Cooling arrangements characterised by passive heat-dissipating elements, e.g. heat-sinks
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
- F21S8/00—Lighting devices intended for fixed installation
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
- F21V29/00—Protecting lighting devices from thermal damage; Cooling or heating arrangements specially adapted for lighting devices or systems
- F21V29/50—Cooling arrangements
- F21V29/70—Cooling arrangements characterised by passive heat-dissipating elements, e.g. heat-sinks
- F21V29/74—Cooling arrangements characterised by passive heat-dissipating elements, e.g. heat-sinks with fins or blades
- F21V29/77—Cooling arrangements characterised by passive heat-dissipating elements, e.g. heat-sinks with fins or blades with essentially identical diverging planar fins or blades, e.g. with fan-like or star-like cross-section
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
- F21V29/00—Protecting lighting devices from thermal damage; Cooling or heating arrangements specially adapted for lighting devices or systems
- F21V29/50—Cooling arrangements
- F21V29/70—Cooling arrangements characterised by passive heat-dissipating elements, e.g. heat-sinks
- F21V29/83—Cooling arrangements characterised by passive heat-dissipating elements, e.g. heat-sinks the elements having apertures, ducts or channels, e.g. heat radiation holes
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Arrangement Of Elements, Cooling, Sealing, Or The Like Of Lighting Devices (AREA)
Abstract
The application provides a heat dissipation device, which comprises a first heat dissipation piece, a second heat dissipation piece and a heat dissipation piece, wherein a through hole is formed in the axis of the first heat dissipation piece; the heat conducting piece comprises a contact part and a heat conducting part arranged on the contact part, the outer peripheral surface of the heat conducting part is attached to the first heat conducting surface in a surrounding mode, and the heat conducting part forms an accommodating space in a surrounding mode; the second heat dissipation piece is arranged in the accommodating space, and the outer peripheral surface of the second heat dissipation piece is attached to the inner peripheral surface of the heat conduction part. This application is through the peripheral face with the heat conduction portion around laminating on first heat conduction face, and laminate the peripheral face of second radiating element on the inner peripheral surface of heat conduction portion, in order when the heat transmits to the heat conduction portion through the contact site, the heat on the heat conduction portion can be simultaneously through the effluvium of first radiating element and second radiating element, thereby when having avoided the heat to only dispel through one in first radiating element or the second radiating element, the heat that appears is piled up and is difficult to the effluvium problem, radiating efficiency has been improved.
Description
Technical Field
The application relates to fishing tool technical field, especially relates to a heat abstractor and fishing lamp.
Background
The fish lamp system is a necessary tool for trapping phototaxis fishes, and the working principle of the fish lamp system is that the phototaxis of the fishes is utilized, and light is lightened to attract the fishes to gather at night so as to be convenient for centralized fishing or fishing.
Most of heat dissipation devices in fish gathering lamps in the market are manufactured by traditional aluminum profile extrusion molding or high-pressure die-casting aluminum, and when the fish gathering lamp is used, the heat conduction fins are connected with the lamp tubes and the fins in the fish gathering lamp so as to conduct heat generated by the lamp tubes to the fins for heat dissipation.
However, in the conventional heat dissipation device, the heat conductive sheet is usually made of a whole heat dissipation plate or a fin, and when the heat conductive sheet is connected to the lamp tube, the lamp tube is only connected to a partial region of the heat dissipation plate and the fin. Therefore, when the lamp tube generates heat and transfers the heat through the heat conducting fins, the heat can only contact with the local areas in the heat dissipation plate and the fins, so that the local areas of the fins are overheated, and the rest parts are overcooled to influence the heat dissipation of the fish gathering lamp.
Disclosure of Invention
In view of the above, it is desirable to provide a heat dissipation device and a fish lamp with high heat dissipation performance to solve the above problems.
Embodiments of the present application provide a heat dissipation device, comprising,
the heat sink comprises a first heat sink and a second heat sink, wherein the first heat sink is provided with a through hole along the axis of the first heat sink, and a first heat conduction surface is arranged on the inner wall of the through hole;
the heat conducting piece comprises a contact part and a heat conducting part arranged on the contact part, the outer peripheral surface of the heat conducting part is attached to the first heat conducting surface in a surrounding mode, and the heat conducting part forms an accommodating space in a surrounding mode; the heat conduction part comprises a connecting part and at least two attaching parts extending outwards from the connecting part, the connecting part is arranged on the contact part to transfer heat on the contact part, the at least two attaching parts are annularly wound, the outer peripheral surfaces of the at least two annularly-formed attaching parts are attached to the first heat conduction surface, and each attaching part is annularly wound by one circle to form an annular shape; the heat conduction part further comprises at least two extension parts arranged between each attaching part and the connecting part, and each extension part is used for extending one attaching part to different heights along the height direction of the first heat dissipation part;
the second heat radiating piece is arranged in the accommodating space, and the inner peripheral surfaces of at least two annular attaching parts are attached to the outer peripheral surface of the second heat radiating piece.
In at least one embodiment of the present application, the extension portion includes a first guide portion and a second guide portion disposed in order from the connection portion;
the attaching portion is circumferentially arranged from an end portion of the second guide portion to form a ring shape.
In at least one embodiment of the present application, a width of one of the first guide portions is 1/10-1/6 of the width of the link portion.
In at least one embodiment of the present application, the connecting portion separates the accommodating space to form a first accommodating space and a second accommodating space which are adjacent to each other;
the second heat dissipation member includes a first heat dissipation member and a second heat dissipation member that are respectively extruded in the first accommodation space and the second accommodation space.
In at least one embodiment of the present application, the first heat sink piece and the second heat sink piece are each formed by folding a thermally conductive metal sheet multiple times;
the first heat dissipation part comprises a plurality of first surfaces and a plurality of second surfaces which are arranged oppositely, the first surfaces are extruded and attached to the attaching part, and the second surfaces are extruded and attached to the connecting part;
the second heat dissipation part comprises a plurality of third faces and a plurality of fourth faces which are arranged oppositely, the third faces are extruded and attached to the attaching portion in a plurality of modes, and the fourth faces are extruded and attached to the connecting portion in a plurality of modes.
In at least one embodiment of the present application, the first heat dissipation element is formed by folding a heat conductive metal sheet multiple times, so that the first heat dissipation element forms multiple heat dissipation surfaces on the first heat conduction surface;
wherein, follow the direction of height of first radiating piece, the radiating surface first face the second face the third face with all be equipped with a plurality of curved convex parts on the fourth face, connecting portion and each laminating portion all is equipped with a plurality of recesses, and is a plurality of the convex part can stretch into respectively to a plurality of in the recess, in order to restrict the heat-conducting piece is relative first radiating piece with the removal of second radiating piece.
A fish gathering lamp comprises a fish gathering lamp body,
the heat sink as described above;
the mounting seat is fixed at one end of the heat dissipation device;
a light emitting assembly fixed on the contact portion;
and the lampshade is covered outside the light-emitting component and the contact part and is detachably arranged at the other end of the heat dissipation device opposite to the mounting seat.
The application has at least the following beneficial effects:
1. the outer peripheral surface of the heat conduction part is attached to the first heat conduction surface in a surrounding mode, the outer peripheral surface of the second heat dissipation part is attached to the inner peripheral surface of the heat conduction part, when heat is transmitted to the heat conduction part through the contact part, the heat on the heat conduction part can be dissipated through the first heat dissipation part and the second heat dissipation part at the same time, the problem that the heat is accumulated and difficult to dissipate when the heat is dissipated only through one of the first heat dissipation part or the second heat dissipation part is avoided, and the heat dissipation efficiency is improved.
2. Each attaching portion is surrounded to form a ring shape, so that the attaching portions are attached to the first radiating surface and the second radiating portion along the circumferential direction, and therefore when heat is transmitted to the heat conduction portion through the contact portion, the heat conduction portion can transmit the heat to the whole circumferential direction of the first radiating surface and the second radiating portion. At the moment, the temperature can be transmitted on the first radiating surface and the second radiating piece along the height direction, so that the whole first radiating surface and the whole second radiating piece are radiated, the problem that the heat cannot be transmitted along the circumferential direction and the radiating area is small is solved, and the radiating efficiency is improved. Furthermore, each attaching portion is encircled by one circle to form a ring, so that the problem that the attaching portions are too many in encircling circles, heat cannot be transferred to the tail end, and material waste is caused is avoided, and the using amount of materials is saved. Still further, through set up the extension between each laminating portion and connecting portion, so that each laminating portion equally distributes in the different high department of first cooling surface and second radiating piece, thereby in the heat dissipation process, a plurality of laminating portions can transmit the heat to the different height of first cooling surface and second radiating piece respectively, thereby guarantee that the heat distribution on whole first cooling surface and the second radiating piece is even, make full use of its heat radiating area, better assurance radiating efficiency and better reduction the use amount of material. Furthermore, the width of the first guide part is set to be 1/10-1/6 of the width of the connecting part, so that when heat is transferred to the connecting part through the contact part, the width of the first guide part is smaller, so that when the heat to be transferred is constant, the heat can extend for a longer distance along the extending direction of the first guide part and the second extension part, so that the heat is transferred to the whole second guide part, and the heat is transferred and dissipated in the whole circumferential direction. The problem of local heat dissipation caused by the fact that the distance between the first guide part and the second guide part along which heat is transmitted is broken due to the fact that the width of the first guide part is too large and the whole circumferential direction cannot be filled is solved, and therefore heat dissipation efficiency is further improved.
3. Through with first heat dissipation part and second heat dissipation part extrusion in first accommodation space and second accommodation space to when the preliminary assembly second heat dissipation part, can with first heat dissipation part and second heat dissipation part chucking in the heat-conducting part, thereby prevent droing of first heat dissipation part and second heat dissipation part, improved the packaging efficiency. Further, set up a plurality of first faces and second face relatively on first heat dissipation part, set up a plurality of third faces and fourth face relatively on the second heat dissipation part, in order when first heat dissipation part and second heat dissipation part receive the extrusion, can be with the first face, the second face, the inseparable extrusion of third face and fourth face is to the laminating portion on, thereby prevent first face, the second face, the radiating problem of influence because of laminating not tightly or having the clearance to appear between one or more in third face or the fourth face and the laminating portion, thereby radiating efficiency has been guaranteed. Still further, through setting up first face and second face relatively, set up third face and fourth face relatively to when laminating portion transfer heat, can begin the transmission from the relative both ends of same fin, thereby prevent to appear the heat and can't transmit to on the whole fin and the problem that the heat dissipation is incomplete appears from one end transmission only, thereby further guaranteed radiating efficiency.
4. Through all being equipped with a plurality of curved convex parts on cooling surface, first face, second face, third face and fourth face to all be equipped with corresponding recess on connecting portion and each laminating portion. When the first radiating piece, the second radiating piece and the heat conducting piece are assembled, the plurality of convex parts can be clamped in the corresponding grooves to achieve pre-installation, so that the first radiating piece and the second radiating piece are prevented from displacing relative to the heat conducting piece, and the assembling difficulty is reduced. Further, by arranging the convex parts and the concave grooves, the heat dissipation area of the LED lamp can be increased greatly, and therefore the heat dissipation efficiency is improved.
Drawings
Fig. 1 is a schematic perspective view of a fish gathering lamp according to an embodiment of the present application.
Fig. 2 is an exploded view of the fish gathering lamp shown in fig. 1 from a first viewing angle.
Fig. 3 is an exploded view of the fish gathering device shown in fig. 1 from a second perspective.
Fig. 4 is an exploded view of the heat dissipation device shown in fig. 1 from a first perspective.
Fig. 5 is an exploded view of the heat dissipation device shown in fig. 1 from a second perspective.
Fig. 6 is a front view of the fish gathering lamp shown in fig. 1 in the direction a.
Description of the main elements
1. A fish gathering lamp; 100. a heat sink; 10. a first heat sink; 11. a through hole; 12. a first heat-conducting surface; 121. a heat dissipating surface; 100a, a convex portion; 20. a heat conductive member; 21. a contact portion; 22. a heat conducting portion; 22a, an accommodating space; 22b, a first accommodating space; 22c and a second accommodating space; 22d, a groove; 221. a connecting portion; 222. a bonding section; 223. an extension portion; 2231. a first guide portion; 2232. a second guide portion; 30. a second heat sink; 31. a first heat dissipating member; 311. a first side; 312. a second face; 32. a second heat sink member; 321. a third surface; 322. a fourth surface; 30a, a placing port; 40. a fixing member; 41. a first fixing hole; 42. a second fixing hole; 50. a fastener; 200. a mounting seat; 300. a light emitting assembly; 310. a light emitting member; 320. a lens; 400. a lamp shade; 410. a fixed part.
Detailed Description
The embodiments of the present application will be described in conjunction with the drawings in the embodiments of the present application, and it is to be understood that the described embodiments are only a part of the embodiments of the present application, and not all of the embodiments.
It will be understood that when an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. When an element is referred to as being "on" another element, it can be directly on the other element or intervening elements may also be present. The terms "top," "bottom," "upper," "lower," "left," "right," "front," "rear," and the like as used herein are for illustrative purposes only.
Embodiments of the present application provide a heat dissipation device, comprising,
the heat sink comprises a first heat sink and a second heat sink, wherein the first heat sink is provided with a through hole along the axis of the first heat sink, and a first heat conduction surface is arranged on the inner wall of the through hole;
the heat conducting piece comprises a contact part and a heat conducting part arranged on the contact part, the outer peripheral surface of the heat conducting part is attached to the first heat conducting surface in a surrounding mode, and the heat conducting part forms an accommodating space in a surrounding mode;
the second heat dissipation piece is arranged in the accommodating space, and the outer peripheral surface of the second heat dissipation piece is attached to the inner peripheral surface of the heat conduction part.
This application is through the peripheral surface surrounding laminating with the heat-conducting part on first heat-conducting surface, and laminate the peripheral surface of second radiating piece on the inner peripheral surface of heat-conducting part, in order when the heat transmits to the heat-conducting part through the contact site on, the heat on the heat-conducting part can be simultaneously through the effluvium of first radiating piece and second radiating piece, thereby when having avoided the heat to only pass through one effluvium in first radiating piece or the second radiating piece, the heat that appears is piled up and is difficult to the effluvium problem, radiating efficiency has been improved.
Some embodiments of the present application will be described in detail below with reference to the accompanying drawings. The embodiments and features of the embodiments described below can be combined with each other without conflict.
Referring to fig. 1-3, the present application provides a fish lamp 1, which includes a heat sink 100, a mounting base 200, a light emitting element 300 and a lamp cover 400. Specifically, the mounting base 200 is fixed at one end of the heat sink 100, and is used for suspending the fish lamp 1 on a fixed object, so that the fish lamp 1 is prevented from floating with water when placed under the water surface. Preferably, the mounting seat 200 is fixed to the heat sink 100 by screws. The light emitting assembly 300 is fixed at the other end of the heat sink 100 opposite to the mounting base 200, so that when the fish gathering lamp 1 is suspended under the water surface, the light emitting assembly 300 emits light to attract fish. The lamp cover 400 covers the light emitting element 300 and the heat sink 100 to prevent water from penetrating into the light emitting element 300 to damage the light emitting element 300 when the fish lamp 1 is placed under the water. Preferably, the lamp cover 400 is a transparent glass cover, and the lamp cover 400 is detachably disposed on the heat sink 100 to facilitate the lamp cover 400 to be unscrewed to replace the lamp cover 400 when the lamp cover 400 is damaged.
Further, the light emitting assembly 300 includes a light emitting member 310 and a lens 320. The light emitting element 310 is fixed to a portion of the heat dissipating device 100 protruding into the lamp housing 400, so that when the light emitting element 310 emits light, the heat generated by the light emission is conducted out of the lamp housing 400 and dissipated through the heat dissipating device 100. The lens 320 is covered on the luminous member 310 to refract the light emitted from the luminous member 310 into colored light of a designated frequency so as to attract different fish schools.
In one embodiment, the light emitting members 310 are LED beads, and the lens 320 has a cavity corresponding to the light emitting members 310, so that each light emitting member 310 extends into a different cavity.
Further, to facilitate fixing the lamp cover 400 to the heat sink 100, the lamp cover 400 further includes a fixing portion 410 disposed at one end thereof, in one embodiment, the fixing portion 410 is threaded and fixed to the heat sink 100 by the thread.
Referring to fig. 4 to 6, in order to increase the heat dissipation efficiency of the fish lamp 1, the heat dissipation device 100 includes a first heat dissipation member 10, a heat conduction member 20, and a second heat dissipation member 30. One end of the heat conducting element 20 extends into the lamp cover 400 to fix the plurality of light emitting elements 310, and the other end of the heat conducting element 20 is attached to the first heat dissipating element 10 and the second heat dissipating element 30, so as to transfer heat generated by the plurality of light emitting elements 310 to the first heat dissipating element 10 and the second heat dissipating element 30 for heat dissipation.
Specifically, the first heat sink 10 is provided with a through hole 11 along an axis thereof, and the first heat sink 10 has a first heat conducting surface 12 on an inner wall of the through hole 11. The heat conducting member 20 includes a contact portion 21 and a heat conducting portion 22 disposed on the contact portion 21, an outer peripheral surface of the heat conducting portion 22 is attached to the first heat conducting surface 12 in a surrounding manner, and the heat conducting portion 22 forms an accommodating space 22a in the surrounding manner. The second heat dissipating member 30 is disposed in the accommodating space 22a, and an outer peripheral surface of the second heat dissipating member 30 is attached to an inner peripheral surface of the heat conducting portion 22.
In one embodiment, the contact portion 21 is a metal plate capable of conducting heat, such as a copper plate, and the heat conduction portion 22 is a component capable of conducting heat and connected to the contact portion 21. Further, the plurality of light emitting elements 310 are fixed on the contact portion 21, so that when the plurality of light emitting elements 310 generate heat, the heat generated by the plurality of light emitting elements 310 is transferred to the heat conduction portion 22 through the contact portion 21, and the heat conduction portion 22 transfers the transferred heat to the first heat conduction surface 12 and the second heat dissipation member 30 for heat dissipation.
According to the scheme, the outer peripheral surface of the heat conduction part 22 is attached to the first heat conduction surface 12 in a surrounding mode, the outer peripheral surface of the second heat dissipation part 30 is attached to the inner peripheral surface of the heat conduction part 22, when heat is transmitted to the heat conduction part 22 through the contact part 21, the heat on the heat conduction part 22 can be dissipated through the first heat dissipation part 10 and the second heat dissipation part 30 at the same time, the problem that the heat is accumulated and difficult to dissipate when the heat is dissipated only through one of the first heat dissipation part 10 or the second heat dissipation part 30 is solved, and the heat dissipation efficiency is improved.
In one embodiment, the first heat dissipation element 10 and the second heat dissipation element 30 are annular heat dissipation fins, wherein the first heat conduction surface 12 is an inner wall of the first heat dissipation element 10 at the through hole 11 thereof. Note that, the first heat conduction surface 12 in this case is an imaginary surface, i.e., an inner wall of the first heat dissipation element 10 at the through hole 11.
More specifically, the heat conduction portion 22 includes a connection portion 221 and at least two attachment portions 222 extending outward from the connection portion 221. The connection portion 221 is provided on the contact portion 21 to transfer heat on the contact portion 21. At least two of the bonding portions 222 are annularly wound, and the outer peripheral surfaces of at least two of the annularly shaped bonding portions 222 are bonded to the first heat conduction surface 12, and the inner peripheral surfaces of at least two of the annularly shaped bonding portions 222 are bonded to the outer peripheral surface of the second heat dissipation element 30.
In one embodiment, the connecting portion 221 is a metal plate structure, such as a copper plate, which is integrally formed with the contact portion 21 and capable of conducting heat, so as to dissipate heat.
In one embodiment, the attaching portion 222 is integrally formed with the connecting portion 221 and bent into a ring shape. Specifically, the attaching portion 222 is a plurality of branches extending from one end of the connecting portion 221, and the extending portions of the branches are bent to form the same diameter, so as to be sleeved between the first heat sink 10 and the second heat sink 30. Preferably, the connection portion 221 and the bonding portion 222 are made of an elastic copper plate, so as to facilitate the bending of the bonding portion 222 with respect to the connection portion 221 and the heat dissipation of the plurality of light emitting members 310.
It should be noted that, in the above-mentioned solution, each attaching portion 222 is annularly surrounded to form a ring shape, so that the attaching portion 222 is attached to the first heat dissipation surface 121 and the second heat dissipation member 30 along the circumferential direction, so that when heat is transferred to the heat conduction portion 22 through the contact portion 21, the heat conduction portion 22 can transfer the heat to the entire circumferential direction of the first heat dissipation surface 121 and the second heat dissipation member 30. At this time, the temperature may be transferred on the first heat dissipation surface 121 and the second heat dissipation member 30 in the height direction, so that heat is dissipated on the entire first heat dissipation surface 121 and the second heat dissipation member 30, thereby avoiding a problem of a small area of the heat dissipation surface 121 due to heat not being transferred in the circumferential direction, and improving heat dissipation efficiency.
Further, each attaching portion 222 surrounds one turn to form a ring, so as to avoid the problem of material waste caused by the fact that heat cannot be transferred to the tail end due to the fact that the number of the surrounding turns of each attaching portion 222 is too large, and save the using amount of materials.
In the process of transferring heat, the heat transfer is generally caused by the vibration, displacement and mutual collision of molecules, atoms and electrons in the substance. When the number of turns of the attaching portion 222 is larger, the length of the single attaching portion 222 stretched when it is unfolded is longer, and heat is dissipated by heat convection and heat radiation during the heat transfer, so that the heat is gradually reduced until the heat dissipation is completed during the heat transfer. When the attachment portion 222 is too long, it may occur that the temperature at the attachment portion 222 transferred to the end is too low or zero, thereby causing no heat transfer between the attachment portion 222 and the first and second heat dissipation members 10 and 30 at the low temperature. The head end of the attachment portion 222 is too hot to dissipate heat in a short time, and the heat is concentrated at the position contacting the head end of the attachment portion 222, which causes a local overheating problem of the first heat sink 10 and the second heat sink 30 at the corresponding positions. When the heat sink 100 is locally overheated and locally overcooled for a long time, the heat sink 100 may be damaged or damaged. The bonding portion 222 disposed in the region locally overcooled for a long time has no obvious heat transfer, which results in a waste of materials used therein and increases the space occupancy rate of the heat dissipation device 100.
Further, in order to enable the attaching portions 222 to better and uniformly transfer heat to the first heat dissipation member 10 and the second heat dissipation member 30, the heat conduction portion 22 further includes at least two extension portions 223 disposed between each attaching portion 222 and the connection portion 221. Preferably, along the height direction of the first heat dissipation member 10, each extension portion 223 is configured to extend one of the attachment portions 222 to different heights, so that each attachment portion 222 is uniformly distributed at different heights of the first heat dissipation surface 121 and the second heat dissipation member 30, and thus, in the heat dissipation process, the attachment portions 222 can transfer heat to different heights of the first heat dissipation surface 121 and the second heat dissipation member 30, so as to ensure that the heat on the whole first heat dissipation surface 121 and the whole second heat dissipation member 30 is uniformly distributed, fully utilize the area of the heat dissipation surface 121, better ensure the heat dissipation efficiency, and better reduce the usage amount of materials.
Specifically, the extension part 223 includes a first guide part 2231 and a second guide part 2232 that are sequentially disposed from the connection part 221. Specifically, the attaching portion 222 is circumferentially provided from an end of the second guide portion 2232 to form a ring shape.
Further, when the second heat dissipating member 30 is inserted into and fixed in the accommodating space 22a, the second heat dissipating member 30 contacts the first guide portions 2231 and the second guide portions 2232, and at this time, the first guide portions 2231 and the second guide portions 2232 can transfer heat transferred from the contact portion 21 to the second heat dissipating member 30 for dissipating heat.
In one embodiment, the first guide portions 2231 and the second guide portions 2232 are formed of a sheet-shaped and heat-conductive metal plate structure. Preferably, the first guide portions 2231 are disposed perpendicular to the second guide portions 2232, so that the first guide portions 2231 and the second guide portions 2232 can block the impact of the second heat sink 30 and cannot be easily deformed during the insertion of the second heat sink 30 into the accommodating space 22 a. When the first guide portions 2231 and the second guide portions 2232 are arranged at other angles, the first guide portions 2231 and the second guide portions 2232 are deformed, damaged and bent at the bent positions due to the impact of the second heat dissipation member 30, and the service life of the heat dissipation device 100 is prolonged.
Preferably, the width of one first guide portion 2231 is 1/10-1/6 of the width of the connecting portion 221, so that when heat is transferred to the connecting portion 221 through the contact portion 21, the width of the first guide portion 2231 is smaller, so that when heat to be transferred is constant, the heat can extend for a longer distance along the extending direction of the first guide portion 2231 and the second extension portion 223, so as to transfer the heat to the whole second guide portion 2232, thereby realizing heat transfer and dissipation in the whole circumferential direction. The problem of local heat dissipation due to the fact that the distance between the first and second guide portions 2231 and 2232 along which heat is transferred is too short due to the excessively large width of the first guide portion 2231, and the heat cannot be dissipated in the entire circumferential direction is avoided, thereby further increasing the efficiency of heat dissipation.
In order to facilitate assembly of the second heat sink 30 with the heat conduction member 20, the connection portion 221 partitions the accommodating space 22a to form a first accommodating space 22b and a second accommodating space 22c adjacent to each other. Specifically, the second heat sink 30 includes a first heat sink 31 and a second heat sink 32 respectively extruded in the first receiving space 22b and the second receiving space 22c, so that the first heat sink 31 and the second heat sink 32 can be tightly clamped to the heat conduction part 22 when the second heat sink 30 is initially assembled, thereby preventing the first heat sink 31 and the second heat sink 32 from falling off, and improving the assembly efficiency. Preferably, the volume of the first heat dissipation member 31 is smaller than the volume of the first accommodating space 22b, the volume of the second heat dissipation member 32 is smaller than the volume of the second accommodating space 22c, and the first heat dissipation member 31 and the second heat dissipation member 32 are made of an elastically deformable material. Therefore, in the process of assembling the first heat dissipation part 31 to the first accommodation space 22b and assembling the second heat dissipation part to the second accommodation space 22c, the first heat dissipation part 31 and the second heat dissipation part 32 are extruded into the corresponding first accommodation space 22b and the second accommodation space 22c through external force, and after the extrusion is completed, the first accommodation space 22b and the second accommodation space 22c are filled with the first heat dissipation part 31 and the second heat dissipation part 32 due to the elasticity of the first heat dissipation part 31 and the second heat dissipation part 32, so that the first heat dissipation part 31 and the second heat dissipation part 32 are tightly clamped in the first accommodation space 22b and the second accommodation space 22c, and subsequent fixation is facilitated.
In one embodiment, the first heat sink 31 and the second heat sink 32 are heat fins.
Further, when the first heat sink 31 and the second heat sink 32 are pressed into the first receiving space 22b and the second receiving space 22c, a placing opening 30a is formed between the first heat sink 31 and the second heat sink 32, so that the first guide portion 2231 and the first guide portion 2231 are placed in the placing opening, and the heat conduction portion 22 extends into the second heat sink 30.
Furthermore, the first heat dissipation part 31 and the second heat dissipation part 32 are formed by folding a heat-conducting metal sheet for multiple times, that is, a plurality of gaps and openings are formed between the first heat dissipation part 31 and the second heat dissipation part 32, so that when heat is transferred to the first heat dissipation part 31 and the second heat dissipation part 32, the heat dissipated by the first heat dissipation part 31 and the second heat dissipation part 32 due to heat convection and heat radiation of the first heat dissipation part 31 and the second heat dissipation part 32 is increased by the gaps and the openings, and the heat dissipation efficiency is improved.
Still further, the first heat sink member 31 includes a plurality of first faces 311 and a plurality of second faces 312 that are oppositely disposed. The first surfaces 311 are attached to the attaching portion 222 by pressing, and the second surfaces 312 are attached to the connecting portion 221 by pressing. The second heat dissipation part 32 comprises a plurality of third faces 321 and a plurality of fourth faces 322 which are oppositely arranged, the plurality of third faces 321 are extruded and attached to the attaching part 222, the plurality of fourth faces 322 are extruded and attached to the connecting part 221, so that when the first heat dissipation part 31 and the second heat dissipation part 32 are extruded, the first face 311, the second face 312, the third face 321 and the fourth face 322 can be extruded to the attaching part 222 tightly, the problem that one or more of the first face 311, the second face 312, the third face 321 or the fourth face 322 are not tightly attached to the attaching part 222 or gaps exist between the one or more of the first face 311, the second face 312, the third face 321 or the fourth face 322 and the attaching part 222 to affect heat dissipation is solved, and therefore the heat dissipation efficiency is guaranteed.
Furthermore, the first surface 311 and the second surface 312 are arranged oppositely, and the third surface 321 and the fourth surface 322 are arranged oppositely, so that when the bonding portion 222 transfers heat, the heat can be transferred from two opposite ends of the same fin, thereby preventing the problem that the heat cannot be transferred to the whole fin and the heat dissipation is not thorough due to the fact that the heat is transferred from one end only, and further ensuring the heat dissipation efficiency.
In one embodiment, the first heat dissipation element 10 is formed by folding a heat conductive metal sheet multiple times, so that the first heat dissipation element 10 forms a plurality of heat dissipation surfaces 121 on the first heat conduction surface 12. The plurality of heat radiating surfaces 121 are attached to the attaching portion 222 at different positions and heights, respectively, so that heat on the attaching portion 222 is transferred to different positions of the first heat radiating member 10, thereby ensuring uniform heat transfer.
Further, the first heat dissipating member 10 is formed by being folded several times, so that gaps and openings are formed at the first heat dissipating member 10, thereby facilitating heat convection and heat radiation at the first heat dissipating member 10, and thus increasing the heat dissipating efficiency at the first heat dissipating member 10.
Still further, in order to ensure the connection stability of the first heat sink 10, the second heat sink 30, and the heat conducting element 20, a plurality of arc-shaped protrusions 100a are disposed on the heat dissipating surface 121, the first surface 311, the second surface 312, the third surface 321, and the fourth surface 322 along the height direction of the first heat sink 10. The connecting portion 221 and each attaching portion 222 are respectively provided with a plurality of grooves 22d, and a plurality of protrusions 100a can respectively extend into the plurality of grooves 22d to limit the movement of the heat conducting element 20 relative to the first heat dissipating member 10 and the second heat dissipating member 30. When the first heat sink 10, the second heat sink 30 and the heat conducting element 20 are assembled, the plurality of protrusions 100a can be inserted into the corresponding grooves 22d to achieve pre-assembly, so that the first heat sink 10 and the second heat sink 30 are prevented from being displaced relative to the heat conducting element 20, and the assembly difficulty is reduced.
Further, in order to better ensure the connection stability of the first heat dissipation member 10, the heat conduction member 20, and the second heat dissipation member 30, after the plurality of protrusions 100a on the heat dissipation surface 121, the first surface 311, the second surface 312, the third surface 321, and the fourth surface 322 are inserted into the plurality of grooves 22d on each of the attaching portions 222, the first heat dissipation member 10, the heat conduction member 20, and the second heat dissipation member 30 are fixed by welding, so as to better ensure the mutual stability thereof.
Further, by providing the protrusion 100a and the groove 22d, the contact area therebetween can be increased more, so as to increase the area of the opposite heat dissipation surfaces 121, thereby improving the heat dissipation efficiency.
In order to facilitate the fixing of the heat conduction member 20 with respect to the first heat dissipation member 10 and the second heat dissipation member 30, the heat dissipation device 100 further includes a fixing member 40. Specifically, the fixing element 40 is provided with a plurality of first fixing holes 41, and the fixing element 40 is fixed on an end surface of the second heat dissipating element 30 away from the mounting seat 200. When the heat conduction member 20 is fixed with respect to the first and second heat dissipation members 10 and 30, the heat conduction portion 22 extends into the second heat dissipation member 30, and the contact portions 21 extend from the plurality of first fixing holes 41 into the lamp housing 400.
In an embodiment, the plurality of first fixing holes 41 are disposed on the fixing member 40 in parallel, and the plurality of first guiding portions 2231 are extended from the plurality of fixing holes.
In the assembly process of the heat sink device 100, the plurality of first guide portions 2231 are protruded from the plurality of fixing holes, and then the plurality of first guide portions 2231 are bent to form the plurality of second guide portions 2232, and ends of the plurality of second guide portions 2232 are bent to form the annular attaching portion 222.
Further, in order to fix the lamp shade 400 on the fixing member 40, the fixing member 40 is provided with a threaded structure, so that the fixing portion 410 is fixed with the fixing member 40 through a thread, and the lamp shade 400 is rotated through the thread after being damaged to facilitate replacement of the lamp shade 400.
Still further, the fixing member 40 is provided with a second fixing hole 42, so that the fixing member 40 is fixed to the second heat sink 30 through the second fixing hole 42 by a screw. It is understood that the fixing manner of the fixing member 40 is not limited thereto, and as another embodiment, the fixing member 40 may be further welded to the second heat dissipation member 30.
In order to further secure the fixation of the first heat dissipating member 10, the second heat dissipating member 30, and the heat conductive member 20, the heat dissipating device 100 further includes a fastening member 50.
In one embodiment, the number of the fastening members 50 is two, so that after the first heat dissipating member 10, the second heat dissipating member 30 and the heat conducting member 20 are assembled, two ends opposite to the first heat dissipating member 10 are sleeved to fasten two ends of the first heat dissipating member 10.
In one embodiment, the fastener 50 is welded to the first heat sink 10.
In one embodiment, the fastener 50 is a ring-shaped structure.
According to the scheme, the outer peripheral surface of the heat conduction part 22 is attached to the first heat conduction surface 12 in a surrounding mode, the outer peripheral surface of the second heat dissipation part 30 is attached to the inner peripheral surface of the heat conduction part 22, when heat is transmitted to the heat conduction part 22 through the contact part 21, the heat on the heat conduction part 22 can be dissipated through the first heat dissipation part 10 and the second heat dissipation part 30 at the same time, the problem that the heat is accumulated and difficult to dissipate when the heat is dissipated only through one of the first heat dissipation part 10 or the second heat dissipation part 30 is solved, and the heat dissipation efficiency is improved.
While the foregoing is directed to embodiments of the present application, it will be appreciated by those skilled in the art that changes may be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims.
Claims (7)
1. A heat dissipation device is characterized by comprising,
the heat sink comprises a first heat sink and a second heat sink, wherein the first heat sink is provided with a through hole along the axis of the first heat sink, and a first heat conduction surface is arranged on the inner wall of the through hole;
the heat conducting piece comprises a contact part and a heat conducting part arranged on the contact part, the outer peripheral surface of the heat conducting part is attached to the first heat conducting surface in a surrounding mode, and the heat conducting part forms an accommodating space in a surrounding mode; the heat conduction part comprises a connecting part and at least two attaching parts extending outwards from the connecting part, the connecting part is arranged on the contact part to transfer heat on the contact part, the at least two attaching parts are annularly wound, the outer peripheral surfaces of the at least two annularly-formed attaching parts are attached to the first heat conduction surface, and each attaching part is annularly wound by one circle to form an annular shape; the heat conduction part further comprises at least two extension parts arranged between each attaching part and the connecting part, and each extension part is used for extending one attaching part to different heights along the height direction of the first heat dissipation part;
the second heat dissipation piece is arranged in the accommodating space, and the inner peripheral surfaces of at least two annular attaching parts are attached to the outer peripheral surface of the second heat dissipation piece.
2. The heat dissipating device of claim 1, wherein the extension portion comprises a first guide portion and a second guide portion disposed in order from the connecting portion;
the attaching portion is circumferentially arranged from an end portion of the second guide portion to form a ring shape.
3. The heat dissipating device of claim 2, wherein a width of one of the first guide portions is 1/10-1/6 of the width of the connecting portion.
4. The heat dissipating device of claim 1, wherein the connecting portion separates the accommodating space to form a first accommodating space and a second accommodating space adjacent to each other;
the second heat dissipation member includes a first heat dissipation member and a second heat dissipation member that are respectively extruded in the first accommodation space and the second accommodation space.
5. The heat sink of claim 4, wherein the first heat sink piece and the second heat sink piece are each formed from a thermally conductive metal sheet folded multiple times;
the first heat dissipation part comprises a plurality of first surfaces and a plurality of second surfaces which are arranged oppositely, the first surfaces are extruded and attached to the attaching part, and the second surfaces are extruded and attached to the connecting part;
the second heat dissipation part comprises a plurality of third faces and a plurality of fourth faces which are arranged oppositely, the third faces are extruded and attached to the attaching portion in a plurality of modes, and the fourth faces are extruded and attached to the connecting portion in a plurality of modes.
6. The heat dissipating device of claim 5, wherein said first heat dissipating member is formed by a thermally conductive metal sheet folded multiple times such that said first heat dissipating member forms multiple heat dissipating surfaces on said first thermally conductive surface;
wherein, follow the direction of height of first radiating piece, the radiating surface first face the second face the third face with all be equipped with a plurality of curved convex parts on the fourth face, connecting portion and each laminating portion all is equipped with a plurality of recesses, and is a plurality of the convex part can stretch into respectively in the recess to the restriction it is relative to lead the heat-insulating material first radiating piece with the removal of second radiating piece.
7. A fish gathering lamp is characterized by comprising,
the heat dissipating device of any of claims 1-6;
the mounting seat is fixed at one end of the heat dissipation device;
a light emitting assembly fixed on the contact portion;
and the lampshade is covered outside the light-emitting component and the contact part and is detachably arranged at the other end of the heat dissipation device opposite to the mounting seat.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210604653.5A CN114673972B (en) | 2022-05-31 | 2022-05-31 | Heat abstractor and fishing lamp |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210604653.5A CN114673972B (en) | 2022-05-31 | 2022-05-31 | Heat abstractor and fishing lamp |
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| CN114673972A CN114673972A (en) | 2022-06-28 |
| CN114673972B true CN114673972B (en) | 2022-08-30 |
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| CN114673972A (en) | 2022-06-28 |
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Effective date of registration: 20220810 Address after: Room 1407, No. 8 Beisiweitou, Gulou District, Nanjing City, Jiangsu Province, 210000 Applicant after: Xu Liancheng Address before: 528000 one of block 1, No. 16, Chuangxin Avenue West, Leping Town, Sanshui District, Foshan City, Guangdong Province Applicant before: Foshan jieliwei metal products Co.,Ltd. |
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