Heat dissipation mechanism and lamps

Abstract

The present application is applicable to the technical field of lighting equipment, and provides a heat dissipation mechanism and a lamp. The heat dissipation mechanism is used for the lamp, and the lamp includes a light source; the heat dissipation mechanism includes: a radiator, which is used to install the light source and move along a preset direction; a fixing part, and the fixing part includes a first fixing piece, and the first fixing piece is located on one side of the radiator; a telescopic cover, which is located between the radiator and the first fixing piece; the first end of the telescopic cover is connected to the first fixing piece, and is used to supply air to the telescopic cover, and the second end of the telescopic cover is connected to the radiator, and is used to supply air in the telescopic cover to the radiator. By adopting the heat dissipation mechanism of the present application, not only can the radiator be cooled down in time while driving the light source to move, thereby extending the service life of the radiator, but also the heat generated by the light source is prevented from affecting the air in the telescopic cover, thereby avoiding the occurrence of local hot spots in the radiator, and ensuring that the light source can also be cooled down in time.

Description

Technical Field

[0001] The present application belongs to the technical field of lighting equipment, and more specifically, relates to a heat dissipation mechanism and a lamp. Background Art

[0002] A lamp is a device used to emit light. Its main function is to convert electrical energy or other energy into light energy to achieve the purpose of lighting.

[0003] A lamp in the related art includes a light source, a heat sink and a housing, wherein the light source is mounted on the heat sink, and the interior of the housing is hollow to form a receiving space, and both the light source and the heat sink are mounted in the receiving space; in order to avoid the situation where the heat sink with the light source installed does not dissipate heat in time due to movement, the heat sink with the light source installed is usually fixed; but the fixed light source cannot change the illumination and irradiation angle of the lamp, and thus cannot meet the different needs of users. Utility Model Content

[0004] The purpose of the embodiments of the present application is to provide a heat dissipation mechanism and a lamp, aiming to solve the technical problem in the related art that the heat dissipation is not timely after the radiator with the light source installed is moved.

[0005] To achieve the above-mentioned purpose, according to one aspect of the present application, a heat dissipation mechanism is provided for a lamp, the lamp comprising a light source; the heat dissipation mechanism comprises: a radiator, for mounting the light source and moving along a preset direction; a fixing portion, the fixing portion comprising a first fixing piece, the first fixing piece being located on one side of the radiator; a telescopic cover, located between the radiator and the first fixing piece; a first end of the telescopic cover is connected to the first fixing piece for supplying air into the telescopic cover, and a second end of the telescopic cover is connected to the radiator for supplying air in the telescopic cover to the radiator.

[0006] Optionally, the heat dissipation mechanism further includes a ventilation fan, which is installed in the telescopic cover and is used to draw air into the telescopic cover and output it to the radiator.

[0007] Optionally, the first fixing member is provided with a ventilation hole connected to the telescopic cover, and the first end of the telescopic cover covers the ventilation hole; the second end of the telescopic cover is covered on the radiator, and the radiator covers the second end of the telescopic cover; the ventilation fan is installed on the surface of the radiator close to the first fixing member; the telescopic cover includes a telescopic spring and a cover cloth, the cover cloth is mounted on the telescopic spring, and the cover cloth is a waterproof cloth.

[0008] Optionally, the heat dissipation mechanism further includes a driving unit, which is drivingly connected to the radiator to drive the radiator to move along a preset direction.

[0009] Optionally, the driving part includes a screw assembly, which includes: a screw, rotatably mounted on a first fixing member, and the length direction of the screw is parallel to a preset direction; a nut seat, sleeved on the outer periphery of the screw and cooperating with the screw thread, and used to move on the screw along a preset direction; the heat dissipation mechanism also includes a connecting part, the connecting part includes a first connecting member, the first connecting member is connected to the radiator, and the nut seat is connected to the first connecting member so that the nut seat is connected to the radiator.

[0010] Optionally, there are multiple groups of screw assemblies, and the multiple groups of screw assemblies are arranged at intervals; the driving part also includes: a driving gear, which is rotatably mounted on the first fixed member; a driving member, which is mounted on the first fixed member, and the output shaft of the driving member is connected to the driving gear, which is used to drive the driving gear to rotate on the first fixed member; multiple transmission gears, the number of transmission gears is the same as the number of screw assemblies, and the multiple transmission gears are arranged one by one corresponding to the multiple groups of screw assemblies, and the multiple transmission gears are all rotatably mounted on the first fixed member, and the multiple transmission gears are respectively connected to the screws in the corresponding screw assemblies; a synchronous belt, the driving gear and the multiple transmission gears are all meshed with the synchronous belt, so that the driving gear and the multiple transmission gears rotate synchronously.

[0011] Optionally, the heat dissipation mechanism also includes a guide part, which includes a guide rod and a linear bearing. The guide rod is installed on the first fixing member, and the length direction of the guide rod is parallel to the preset direction; the linear bearing is installed on the first connecting member, and the first connecting member is slidably installed on the guide rod through the linear bearing.

[0012] Optionally, the connecting part also includes a second connecting member, which is connected to the first connecting member, and the second connecting member is connected to the radiator, so that the first connecting member and the radiator are connected; the fixing part also includes a second fixing member and a third connecting member, wherein the second fixing member is located on a side of the radiator away from the first fixing member, the screw rod is rotatably installed on the second fixing member, the guide rod is installed on the second fixing member, and the second fixing member is connected to the first fixing member through the third connecting member.

[0013] Optionally, the telescopic cover has a retracted state; the heat dissipation mechanism also includes a detection unit, the detection unit includes a detection piece and a detected piece, the detection piece is mounted on the first fixing piece, and the detected piece is mounted on the radiator; when the detection piece senses the detected piece, the telescopic cover is in a retracted state; the detection piece is electrically connected to the driving unit.

[0014] According to another aspect of the present application, a lamp is provided, comprising a light source and the above-mentioned heat dissipation mechanism, wherein the light source is mounted on the heat sink.

[0015] The beneficial effect of the heat dissipation mechanism provided by the present application is that: since the light source is installed on the radiator in the present application, when the light source needs to move in a preset direction to adjust the illumination and illumination angle of the lamp, it is only necessary to drive the radiator to move in the preset direction. In this process, the heat generated by the light source will be directly transmitted to the radiator, and at the same time, the telescopic cover will move with the radiator and supply air to the radiator, so that the radiator can be cooled down in time, thereby enabling the light source installed on the radiator to be cooled down in time; by adopting the heat dissipation mechanism of the present application, not only can the radiator be cooled down in time while driving the light source to move, thereby extending the service life of the radiator, but also the heat generated by the light source is prevented from affecting the air in the telescopic cover, so that the radiator can be cooled down in time under the action of the air, local hot spots in the radiator are avoided, and it is ensured that the light source can also be cooled down in time. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative labor.

[0017] Figure 1 A schematic diagram of the structure of a lamp provided in an embodiment of the present application;

[0018] Figure 2 A schematic diagram of the structure of the lamp provided in an embodiment of the present application after a portion of the protective shell is hidden;

[0019] Figure 3 A schematic structural diagram of a heat sink, a first fixing member, a telescopic cover in a retracted state, and a ventilation fan provided in an embodiment of the present application after being assembled at a first viewing angle;

[0020] Figure 4 A schematic diagram of the structure of the radiator, the first fixing member, the telescopic cover in a retracted state, and the ventilation fan provided in an embodiment of the present application after being assembled at a second viewing angle;

[0021] Figure 5 A schematic front view of the assembled radiator, the first fixing member, the telescopic cover in an extended state, and the ventilation fan provided in an embodiment of the present application;

[0022] Figure 6 A simplified top view schematic diagram of the telescopic cover provided in an embodiment of the present application;

[0023] Figure 7 A schematic diagram of the structure of the lamp provided in an embodiment of the present application after the protective shell is hidden at a first viewing angle;

[0024] Figure 8 A schematic diagram of the structure of the lamp provided in an embodiment of the present application at a second viewing angle after the protective shell is hidden;

[0025] Fig. 9 for Figure 8 The enlarged schematic diagram of point A in the middle;

[0026] The reference numerals in the above drawings are as follows:

[0027] 100, radiator; 200, fixing part; 210, first fixing member; 211, ventilation hole; 220, second fixing member; 230, third connecting member;

[0028] 300, telescopic cover; 310, telescopic spring; 320, cover cloth;

[0029] 400, ventilation fan;

[0030] 510, screw assembly; 511, screw; 512, nut seat; 520, driving gear; 530, driving member; 540, transmission gear; 550, synchronous belt;

[0031] 600, connecting portion; 610, first connecting member; 620, second connecting member;

[0032] 700, guide part; 710, guide rod; 720, linear bearing; 800, detection part; 810, detection member; 820, detected member;

[0033] 900. Light source; 1000. Protective case. DETAILED DESCRIPTION

[0034] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present application more clearly understood, the present application is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and are not used to limit the present application.

[0035] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it may be directly on the other element or indirectly on the other element. When an element is referred to as being "connected to" another element, it may be directly connected to the other element or indirectly connected to the other element. In the absence of conflict, the embodiments in this application and the features in the embodiments may be combined with each other. The present application will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0036] It should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0037] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of this application, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0038] As described in the background technology, currently, a lamp is a device for emitting light, and its main function is to convert electrical energy or other energy into light energy to achieve the purpose of lighting. The lamp in the related art includes a light source, a heat sink and a housing, wherein the light source is mounted on the heat sink, and the interior of the housing is hollow to form a receiving space, and the light source and the heat sink are both mounted in the receiving space; in order to avoid the heat sink being unable to dissipate heat in time due to the movement of the heat sink with the light source installed, the heat sink with the light source installed is usually fixed; but the fixed light source cannot change the illumination and irradiation angle of the lamp, and thus cannot meet the different needs of users.

[0039] Reference Figures 1 to 5 In order to solve the above problems, according to one aspect of the present application, an embodiment of the present application provides a heat dissipation mechanism for a lamp, the lamp comprising a light source 900; the heat dissipation mechanism comprises a radiator 100, a fixing portion 200 and a telescopic cover 300, wherein the radiator 100 is used to mount the light source 900 and move along a preset direction; the fixing portion 200 comprises a first fixing member 210, and the first fixing member 210 is located on one side of the radiator 100; the telescopic cover 300 is located between the radiator 100 and the first fixing member 210; a first end of the telescopic cover 300 is connected to the first fixing member 210 for supplying air into the telescopic cover 300, and a second end of the telescopic cover 300 is connected to the radiator 100 for supplying air in the telescopic cover 300 to the radiator 100.

[0040] In the embodiment of the present application, the light source 900 is generally an LED chip and is fixedly mounted on the heat sink 100; the heat sink 100 generally includes a plurality of heat sinks or heat sink plates and is made of aluminum or copper; the second end of the telescopic cover 300 can be driven by the heat sink 100 to move toward or away from the first fixing member 210 to cause the telescopic cover 300 to contract or expand; the air is generally the air in the atmosphere.

[0041] Since the light source 900 is installed on the radiator 100 in the present application, when the light source 900 needs to move in a preset direction to adjust the illumination and the irradiation angle of the lamp, it is only necessary to drive the radiator 100 to move in the preset direction. During this process, the heat generated by the light source 900 will be directly transferred to the radiator 100. At the same time, the telescopic cover 300 will move with the radiator 100 and deliver air to the radiator 100, so that the radiator 100 can be cooled down in time, thereby enabling the light source 900 installed on the radiator 100 to be cooled down in time; by adopting the heat dissipation mechanism of the present application, not only can the radiator 100 be cooled down in time when the light source 900 is driven to move, thereby extending the service life of the radiator 100, but also the heat generated by the light source 900 is prevented from affecting the air in the telescopic cover 300, so that the radiator 100 can be cooled down in time under the action of the air, thereby avoiding the occurrence of local hot spots in the radiator 100 and ensuring that the light source 900 can be cooled down in time.

[0042] Reference Figure 1 , Figure 3 as well as Figure 4 In one embodiment, the heat dissipation mechanism further includes a ventilation fan 400 , which is installed in the telescopic cover 300 and is used to suck air into the telescopic cover 300 and output it to the radiator 100 .

[0043] In this embodiment, the ventilation fan 400 is a conventional fan structure, and the specific structure of the ventilation fan 400 belongs to the common knowledge of those skilled in the art, and will not be elaborated in detail here; the ventilation fan 400 is set to speed up the flow of air, thereby improving the cooling speed of the radiator 100, thereby enabling the light source 900 to cool down faster, thereby extending the service life of the light source 900. In addition, in order to further speed up the flow of air, the number of ventilation fans 400 is two, and the two ventilation fans 400 are both installed in the telescopic cover 300 and arranged at intervals.

[0044] Reference Figures 3 to 5 In one embodiment, the first fixing member 210 is provided with a ventilation hole 211 connected to the telescopic cover 300, and the first end of the telescopic cover 300 covers the ventilation hole 211; the second end cover of the telescopic cover 300 is provided on the radiator 100, and the radiator 100 covers the second end of the telescopic cover 300.

[0045] In this embodiment, the first end of the telescopic cover 300 completely covers the ventilation hole 211 to prevent the heat generated by the light source 900 from affecting the air in the telescopic cover 300; the ventilation hole 211 not only allows the air in the atmosphere to enter the telescopic cover 300, but also reduces the volume of the heat dissipation mechanism. The second end cover of the telescopic cover 300 is arranged on the radiator 100, and the radiator 100 covers the second end of the telescopic cover 300. This design not only allows all the air in the telescopic cover 300 to be output to the radiator 100, thereby accelerating the cooling speed of the radiator 100, but also prevents the heat generated by the light source 900 from affecting the air in the telescopic cover 300. In addition, in order to facilitate the assembly of the telescopic cover 300 and the radiator 100, the telescopic cover 300 and the radiator 100 are connected by fasteners such as connecting screws or connecting studs; in order to facilitate the assembly of the telescopic cover 300 and the first fixing member 210, the telescopic cover 300 and the first fixing member 210 are connected by fasteners such as connecting screws or connecting studs.

[0046] Reference Figure 4 In one embodiment, the ventilation fan 400 is installed on the surface of the radiator 100 close to the first fixing member 210. The ventilation fan 400 thus arranged improves the cooling speed of the radiator 100.

[0047] Reference Figure 2 , Figure 3 , Figure 5 as well as Figure 6 In one embodiment, the telescopic cover 300 includes a telescopic spring 310 and a cover cloth 320 , and the cover cloth 320 is sleeved on the telescopic spring 310 .

[0048] In this embodiment, the cover cloth 320 is generally made of fabric material; the telescopic spring 310 is generally a tension spring, which is spiral in shape and made of steel wire, and is connected to the cover cloth 320 by stitching to support the cover cloth 320; when the telescopic spring 310 is in a compressed state, the telescopic spring 310 presses the cover cloth 320 to shorten the overall length of the telescopic cover 300; when the telescopic spring 310 is in a stretched state, the telescopic spring 310 drives the cover cloth 320 to expand to lengthen the overall length of the telescopic cover 300. By using the telescopic spring 310 in this application, the telescopic cover 300 can achieve a telescopic function.

[0049] Reference Figure 6 In one embodiment, the cover cloth 320 is a waterproof cloth. The cover cloth 320 provided in this way plays a role in protecting the ventilation fan 400, and prevents water droplets formed by the condensation reaction of the radiator 100 from dripping onto the ventilation fan 400.

[0050] Reference Figure 7 and Figure 8 In one embodiment, the heat dissipation mechanism further includes a driving unit, which is connected to the heat sink 100 to drive the heat sink 100 to move in a preset direction. By adopting the driving unit in the present application, the heat sink 100 can be driven to move in a preset direction without manually driving the heat sink 100 to move in the preset direction, thereby improving the convenience of the movement operation of the heat sink 100.

[0051] Reference Figure 2 , Figure 7 and Figure 8 In one embodiment, the driving part includes a screw assembly 510, and the screw assembly 510 includes a screw 511 and a nut seat 512, wherein the screw 511 is rotatably mounted on the first fixing member 210, and the length direction of the screw 511 is parallel to the preset direction; the nut seat 512 is sleeved on the outer periphery of the screw 511 and is threadedly matched with the screw 511 for moving on the screw 511 along the preset direction; the heat dissipation mechanism also includes a connecting part 600, and the connecting part 600 includes a first connecting part 610, the first connecting part 610 is connected to the radiator 100, and the nut seat 512 is connected to the first connecting part 610, so that the nut seat 512 is connected to the radiator 100.

[0052] In this embodiment, the screw rod 511 is generally rotatably mounted on the first fixing member 210 by means of a bearing; the first connecting member 610 is generally connected to the radiator 100 by means of a welding process or a fastener; the first connecting member 610 is provided with a mounting hole for the nut seat 512 to pass through, and the nut seat 512 is generally fixedly passed through the mounting hole by means of an interference fit to be fixedly mounted on the first connecting member 610. When the screw rod assembly 510 in the present application drives the radiator 100 to move along a preset direction, the screw rod 511 is first rotated on the first fixing member 210, and along with the rotation of the screw rod 511, the nut seat 512 sleeved on the screw rod 511 will drive the first connecting member 610 and the radiator 100 mounted on the first connecting member 610 to move on the screw rod 511 along the preset direction. In other embodiments, the driving part can also be a driving cylinder, and the piston rod of the driving cylinder is drivingly connected to the radiator 100 to drive the radiator 100 to move along the preset direction.

[0053] Reference Figure 7 and Figure 8In one embodiment, the number of the screw rod assemblies 510 is multiple groups, and the multiple groups of screw rod assemblies 510 are arranged at intervals; the driving part also includes a driving gear 520, a driving member 530, a plurality of transmission gears 540 and a synchronous belt 550, wherein the driving gear 520 is rotatably mounted on the first fixed member 210; the driving member 530 is mounted on the first fixed member 210, and the output shaft of the driving member 530 is connected to the driving gear 520, which is used to drive the driving gear 520 to rotate on the first fixed member 210; the number of the transmission gears 540 is the same as the number of the screw rod assemblies 510, and the plurality of transmission gears 540 are arranged one by one corresponding to the plurality of groups of screw rod assemblies 510, and the plurality of transmission gears 540 are all rotatably mounted on the first fixed member 210, and the plurality of transmission gears 540 are respectively connected to the screw rods 511 in the corresponding screw rod assemblies 510; the driving gear 520 and the plurality of transmission gears 540 are all meshed with the synchronous belt 550, so that the driving gear 520 and the plurality of transmission gears 540 rotate synchronously.

[0054] In this embodiment, the first connecting member 610 is a heat dissipation circular plate, and the number of screw rod assemblies 510 is three groups. The multiple groups of screw rod assemblies 510 are generally evenly spaced around the circumference of the first connecting member 610; the multiple groups of screw rod assemblies 510 not only enhance the stability of the movement of the first connecting member 610, but also limit the rotation of the nut seat 512 on the screw rod 511, so that the nut seat 512 can only move on the corresponding screw rod 511 along the preset direction.

[0055] The axis of the driving gear 520 is parallel to the length direction of the screw rod 511. The driving gear 520 is generally rotatably mounted on the surface of the first fixing member 210 away from the radiator 100; the driving member 530 is a driving motor or a driving motor. The driving member 530 is generally mounted on the surface of the first fixing member 210 close to the radiator 100; the output shaft of the driving member 530 is coaxial with the driving gear 520 and fixedly connected; the number of transmission gears 540 is three, and a plurality of transmission gears 540 are generally arranged on the first fixing member 210 at uniform intervals around the circumference of the first connecting member 610. The driving gear 520 is located between the two transmission gears 540, and the transmission gear 540 is fixedly connected to the corresponding screw rod 511 in the screw rod assembly 510 to drive the corresponding screw rod 511 to rotate; the synchronous belt 550 is provided with a rack that meshes with the driving gear 520 and a plurality of transmission gears 540.

[0056] When the driving unit in the present application drives the radiator 100 to move along a preset direction, the driving member 530 is first started, and the driving member 530 drives the driving gear 520 to rotate. Along with the rotation of the driving gear 520, the synchronous belt 550 will drive multiple transmission gears 540 to rotate at the same time, and the multiple transmission gears 540 will simultaneously drive the corresponding screw rods 511 to rotate. Along with the rotation of the screw rod 511, the nut seat 512 mounted on the corresponding screw rod 511 will drive the first connecting member 610 and the radiator 100 installed on the first connecting member 610 to move on the corresponding screw rod 511 along the preset direction.

[0057] Reference Figure 2 , Figure 7 as well as Figure 8 In one embodiment, the heat dissipation mechanism also includes a guide portion 700, which includes a guide rod 710 and a linear bearing 720. The guide rod 710 is installed on the first fixing member 210, and the length direction of the guide rod 710 is parallel to the preset direction; the linear bearing 720 is installed on the first connecting member 610, and the first connecting member 610 is slidably installed on the guide rod 710 through the linear bearing 720.

[0058] In this embodiment, the guide rod 710 is generally connected to the first fixing member 210 by means of connecting screws or connecting studs, and is slidably inserted into the inner ring of the linear bearing 720; the first connecting member 610 is provided with a mounting hole for the linear bearing 720 to be inserted, and the linear bearing 720 is generally fixedly inserted into the mounting hole by means of interference fit to be fixedly installed on the first connecting member 610. The provided guide portion 700 not only plays a guiding role, but also plays a role in limiting the rotation of the nut seat 512 on the screw rod 511, so that the nut seat 512 can only move on the corresponding screw rod 511 along the preset direction; the provided linear bearing 720 avoids direct contact between the guide rod 710 and the first connecting member 610, and plays a role in improving the sliding smoothness of the first connecting member 610 on the guide rod 710. In addition, in order to enable the first connecting member 610 to move more stably along the preset direction, the number of the guide portions 700 is multiple, and the multiple guide portions 700 are arranged at intervals around the circumference of the first connecting member 610.

[0059] Reference Figure 2 , Figure 7 as well as Figure 8 In one embodiment, the connecting portion 600 further includes a second connecting member 620 , which is connected to the first connecting member 610 , and the second connecting member 620 is connected to the heat sink 100 , so that the first connecting member 610 and the heat sink 100 are connected.

[0060] In this embodiment, the second connecting member 620 is a connecting rod, and the second connecting member 620 is generally connected to the first connecting member 610 by fasteners such as connecting screws or connecting studs, and is connected to the radiator 100 by fasteners such as connecting screws or connecting studs; the second connecting member 620 is provided to strengthen the connection strength between the first connecting member 610 and the radiator 100. In addition, in order to further improve the connection strength between the first connecting member 610 and the radiator 100, the number of the second connecting members 620 is multiple, and the multiple second connecting members 620 are arranged at intervals around the circumference of the first connecting member 610.

[0061] Reference Figure 2 , Figure 7 as well as Figure 8 In one embodiment, the fixing portion 200 further includes a second fixing member 220 and a third connecting member 230, wherein the second fixing member 220 is located on a side of the radiator 100 away from the first fixing member 210, the screw rod 511 is rotatably mounted on the second fixing member 220, the guide rod 710 is mounted on the second fixing member 220, and the second fixing member 220 is connected to the first fixing member 210 via the third connecting member 230.

[0062] In this embodiment, one end of the guide rod 710 away from the first fixing member 210 is fixedly mounted on the second fixing member 220; the second fixing member 220 is provided to strengthen the stability of the screw rod 511 and the guide rod 710; the third connecting member 230 is a connecting rod, and the third connecting member 230 is generally connected to the second fixing member 220 by fasteners such as connecting screws or connecting studs, and is connected to the first fixing member 210 by fasteners such as connecting screws or connecting studs; the third connecting member 230 strengthens the connection strength between the first fixing member 210 and the second fixing member 220, thereby strengthening the stability of the first fixing member 210 and the second fixing member 220. In addition, in order to further strengthen the connection strength between the first fixing member 210 and the second fixing member 220, the number of the third connecting members 230 is multiple, and the multiple third connecting members 230 are arranged at intervals around the circumference of the first connecting member 610.

[0063] Reference Figure 8 and Fig. 9 In one embodiment, the telescopic cover 300 has a retracted state; the heat dissipation mechanism also includes a detection unit 800, the detection unit 800 includes a detection member 810 and a detected member 820, the detection member 810 is mounted on the first fixing member 210, and the detected member 820 is mounted on the radiator 100; when the detection member 810 senses the detected member 820, the telescopic cover 300 is in a retracted state; the detection member 810 is electrically connected to the driving unit.

[0064] In this embodiment, the detected member 820 is generally metal, the detecting member 810 is a sensor that can detect metal, the detecting member 810 is fixedly mounted on the surface of the first fixing member 210 close to the radiator 100, and the detected member 820 is fixedly mounted on the radiator 100; the detecting member 810 is electrically connected to the controller, and the driving member 530 is electrically connected to the controller, so that the detecting member 810 and the driving member 530 are electrically connected.

[0065] When the detecting member 810 senses the detected member 820, the detecting member 810 feeds back an electrical signal to the controller, and the controller feeds back a stop signal to the driving member 530 to stop the driving member 530; by adopting the detecting unit 800, it is possible to detect whether the telescopic cover 300 is in a retracted state, which helps the user to know the state of the telescopic cover 300.

[0066] In addition, the telescopic cover 300 also has an extended state, and when the first connecting member 610 is blocked from moving by the second fixing member 220, the telescopic cover 300 is in the extended state. Such a design prevents the telescopic cover 300 from being pulled apart, and ensures the integrity of the telescopic cover 300.

[0067] Reference Figures 1 to 9 According to another aspect of the present application, an embodiment of the present application further provides a lamp, which includes a light source 900 and the above-mentioned heat dissipation mechanism, and the light source 900 is installed on the radiator 100.

[0068] In the embodiment of the present application, the light source 900 is generally an LED chip and is fixedly mounted on the heat sink 100. In addition, in order to protect the heat dissipation mechanism and the light source 900, the lamp further includes a protective shell 1000, in which a protective space is provided, and the light source 900 and the heat dissipation mechanism are both installed in the protective space, and the protective shell 1000 is provided with a plurality of light-transmitting holes.

[0069] In summary, the heat dissipation mechanism and the lamp provided by the present embodiment have at least the following beneficial technical effects: since the light source 900 is installed on the radiator 100 in the present application, the light source 900 needs to move along a preset direction. When the illumination and the irradiation angle of the lamp are adjusted, it is only necessary to drive the radiator 100 to move along the preset direction. During this process, the heat generated by the light source 900 will be directly transferred to the radiator 100. At the same time, the telescopic cover 300 will move with the radiator 100 and deliver air to the radiator 100, so that the radiator 100 can be cooled down in time, thereby enabling the light source 900 installed on the radiator 100 to be cooled down in time; by adopting the heat dissipation mechanism of the present application, not only can the radiator 100 be cooled down in time while driving the light source 900 to move, thereby extending the service life of the radiator 100, but also the heat generated by the light source 900 is prevented from affecting the air in the telescopic cover 300, so that the radiator 100 can be cooled down in time under the action of the air, thereby avoiding the occurrence of local hot spots in the radiator 100 and ensuring that the light source 900 can be cooled down in time.

[0070] The above are only preferred embodiments of the present application and are not intended to limit the present application. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present application should be included in the protection scope of the present application.

Claims

1. A heat dissipation mechanism, characterized in that: Used in a lamp, the lamp comprising a light source (900); The heat dissipation mechanism comprises: a heat sink (100) for mounting the light source (900) and moving along a preset direction; A fixing portion (200), the fixing portion (200) comprising a first fixing member (210), the first fixing member (210) being located on one side of the heat sink (100); A telescopic cover (300) is located between the radiator (100) and the first fixing member (210); a first end of the telescopic cover (300) is connected to the first fixing member (210) for allowing air to be input into the telescopic cover (300); and a second end of the telescopic cover (300) is connected to the radiator (100) for allowing air in the telescopic cover (300) to be output to the radiator (100).

2. The heat dissipation mechanism according to claim 1, characterized in that: The heat dissipation mechanism further comprises a ventilation fan (400), wherein the ventilation fan (400) is installed in the telescopic cover (300) and is used to suck the air into the telescopic cover (300) and output the air to the radiator (100).

3. The heat dissipation mechanism according to claim 2, characterized in that: The first fixing member (210) is provided with a ventilation hole (211) communicating with the telescopic cover (300), and the first end of the telescopic cover (300) covers the ventilation hole (211); The second end cover of the telescopic cover (300) is arranged on the radiator (100), and the radiator (100) covers the second end of the telescopic cover (300); The ventilation fan (400) is installed on a surface of the radiator (100) close to the first fixing member (210); The telescopic cover (300) comprises a telescopic spring (310) and a cover cloth (320); the cover cloth (320) is sleeved on the telescopic spring (310); and the cover cloth (320) is a waterproof cloth.

4. The heat dissipation mechanism according to any one of claims 1 to 3, characterized in that: The heat dissipation mechanism further comprises a driving unit, which is drivingly connected to the heat sink (100) so as to drive the heat sink (100) to move along the preset direction.

5. The heat dissipation mechanism according to claim 4, characterized in that: The driving part comprises a screw assembly (510), wherein the screw assembly (510) comprises: a screw (511) rotatably mounted on the first fixing member (210), wherein the length direction of the screw (511) is parallel to the preset direction; A nut seat (512) is sleeved on the outer circumference of the screw rod (511) and is threadably matched with the screw rod (511) so as to be used for moving on the screw rod (511) along the preset direction; The heat dissipation mechanism further comprises a connecting portion (600), wherein the connecting portion (600) comprises a first connecting member (610), wherein the first connecting member (610) is connected to the heat sink (100), and the nut seat (512) is connected to the first connecting member (610) so that the nut seat (512) is connected to the heat sink (100).

6. The heat dissipation mechanism according to claim 5, characterized in that: The number of the screw rod assemblies (510) is multiple, and the multiple groups of the screw rod assemblies (510) are arranged at intervals; The driving unit further comprises: a driving gear (520) rotatably mounted on the first fixing member (210); a driving member (530) mounted on the first fixing member (210), wherein an output shaft of the driving member (530) is connected to the driving gear (520) and is used to drive the driving gear (520) to rotate on the first fixing member (210); a plurality of transmission gears (540), the number of the transmission gears (540) being the same as the number of the screw rod assemblies (510), the plurality of transmission gears (540) being arranged in one-to-one correspondence with the plurality of groups of the screw rod assemblies (510), the plurality of transmission gears (540) being rotatably mounted on the first fixing member (210), and the plurality of transmission gears (540) being respectively connected to the screw rods (511) in the corresponding screw rod assemblies (510); A synchronous belt (550) is meshed with the driving gear (520) and the plurality of transmission gears (540) so that the driving gear (520) and the plurality of transmission gears (540) rotate synchronously.

7. The heat dissipation mechanism according to claim 5, characterized in that: The heat dissipation mechanism further comprises a guide portion (700), wherein the guide portion (700) comprises a guide rod (710) and a linear bearing (720), wherein the guide rod (710) is mounted on the first fixing member (210), and the length direction of the guide rod (710) is parallel to the preset direction; and the linear bearing (720) is mounted on the first connecting member (610), and the first connecting member (610) is slidably mounted on the guide rod (710) via the linear bearing (720).

8. The heat dissipation mechanism according to claim 7, characterized in that: The connecting portion (600) further comprises a second connecting member (620), wherein the second connecting member (620) is connected to the first connecting member (610), and the second connecting member (620) is connected to the radiator (100), so that the first connecting member (610) and the radiator (100) are connected; The fixing portion (200) further comprises a second fixing member (220) and a third connecting member (230), wherein the second fixing member (220) is located on a side of the heat sink (100) away from the first fixing member (210), the screw rod (511) is rotatably mounted on the second fixing member (220), the guide rod (710) is mounted on the second fixing member (220), and the second fixing member (220) is connected to the first fixing member (210) via the third connecting member (230).

9. The heat dissipation mechanism according to claim 8, characterized in that: The telescopic cover (300) has a retracted state; The heat dissipation mechanism further comprises a detection unit (800), the detection unit (800) comprising a detection member (810) and a detected member (820), the detection member (810) being mounted on the first fixing member (210), and the detected member (820) being mounted on the heat sink (100); when the detection member (810) senses the detected member (820), the telescopic cover (300) is in the contracted state; and the detection member (810) is electrically connected to the driving unit.

10. A lamp, characterized in that: It comprises a light source (900) and the heat dissipation mechanism according to any one of claims 1 to 9, wherein the light source (900) is mounted on the heat sink (100).

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