Heat dissipation structure and lamp

Abstract

The heat dissipation structure comprises a light condensation piece, an optical element and an air outlet piece, and the light condensation piece comprises a light inlet face and a light outlet face; the optical element is arranged on one side of the emergent surface deviating from the incident surface; the air outlet piece is provided with an air outlet, a first air channel is formed between the air outlet and the light inlet face, and a second air channel is formed between the air outlet and the light outlet face. A third air channel is formed between the air outlet and the optical element. According to the air outlet piece, the light inlet face of the light condensation piece can be cooled through the first air channel, the light outlet face of the light condensation piece can be cooled through the second air channel, the optical element can be cooled through the third air channel, and the optical element is arranged on the side, away from the light inlet face, of the light outlet face. The light-gathering piece can also block a part of light and heat from passing through, heat dissipation of the optical element is facilitated, and the service life of the optical element can be prolonged. The light path optical effect of the lamp can be improved by arranging the light gathering piece.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of lamps, in particular to a heat dissipation structure and a lamp. BACKGROUND

[0002] In the related art, the internal structure of some lamps (for example, lamps with small volume and large power) is compact, and it is difficult to set a reasonable and effective heat dissipation structure for the optical elements of the lamp. This makes the optical elements in the lamp difficult to dissipate heat, which leads to rapid heating of the optical elements in the lamp and affects the service life of the optical elements in the lamp. SUMMARY

[0003] To solve at least one of the above technical problems, the present application provides a heat dissipation structure and a lamp, which employs the following technical solutions.

[0004] The present application provides a heat dissipation structure, comprising: a light collecting element, the light collecting element comprising a light entrance surface and a light exit surface; an optical element, the optical element being arranged on a side of the light exit surface away from the light entrance surface; an air outlet element, the air outlet element being provided with an air outlet, a first air duct being formed between the air outlet and the light entrance surface, a second air duct being formed between the air outlet and the light exit surface, and a third air duct being formed between the air outlet and the optical element.

[0005] The present application has at least the following beneficial effects: in the present application, the air outlet element can cool the light entrance surface of the light collecting element through the first air duct, cool the light exit surface of the light collecting element through the second air duct, and cool the optical element through the third air duct. The optical element is arranged on a side of the light exit surface away from the light entrance surface, and the light collecting element can block a portion of the light heat. This is conducive to the heat dissipation of the optical element and can improve the service life of the optical element. By arranging the light collecting element, the optical effect of the light path of the lamp can be improved.

[0006] In some embodiments of the present application, the heat dissipation structure further comprises an air guide element, an air guide cavity is formed in the air guide element, the air guide cavity is in communication with the air outlet, the air guide element is further connected with the light collecting element, and at least one of the light entrance surface and the light exit surface of the light collecting element is located in the air guide cavity.

[0007] In some embodiments of the present application, the air guide element is connected to a side of the light exit surface of the light collecting element, the air guide cavity extends along the optical axis direction of the light collecting element, the light exit surface is located in the air guide cavity, so that the second air duct is formed between the air outlet and the light exit surface, the third air duct is formed between the air guide cavity and the optical element, and part of the air outlet is directed towards the light entrance surface of the light collecting element, so that the first air duct is formed between the air outlet and the light entrance surface.

[0008] In some embodiments of the present application, the optical element comprises a color disc, the side wall of the air guide member is provided with a bypass opening in communication with the air guide cavity, and the color disc can be inserted into or out of the optical axis of the light collector through the bypass opening.

[0009] In some embodiments of the present application, part of the color disc is inserted into the air guide cavity through the bypass opening, the color disc is provided with a first light passing hole, and the color disc is rotatable, and the first light passing hole can be coaxial with the air guide member or the axis of the first light passing hole is offset from the axis of the air guide member through rotation of the color disc.

[0010] In some embodiments of the present application, the heat dissipation structure further comprises a first driving member connected with the color disc to drive the color disc to rotate.

[0011] In some embodiments of the present application, the optical element further comprises a movable dynamic disc, the dynamic disc is arranged at the air outlet end of the air guide cavity, and the dynamic disc can be inserted into or out of the optical axis of the light collector through movement of the dynamic disc.

[0012] In some embodiments of the present application, the heat dissipation structure further comprises a second driving member connected with the dynamic disc to drive the dynamic disc to move.

[0013] In some embodiments of the present application, the optical element further comprises a pattern disc assembly arranged in front of the dynamic disc along the optical axis direction.

[0014] The present application also provides a lamp, which comprises the heat dissipation structure described above. BRIEF DESCRIPTION OF DRAWINGS

[0015] The aspects and advantages of the embodiments described and / or illustrated herein will become apparent from the following detailed description, taken in conjunction with the accompanying drawings. It should be understood that the following detailed description and drawings are merely exemplary and are not intended to limit the scope of the application.

[0016] Figure 1 The structural schematic diagram of the heat dissipation structure provided by the embodiments of the present application is shown in the following figure:

[0017] Figure 2 The exploded view of the heat dissipation structure provided by the embodiments of the present application is shown in the following figure: Figure 1

[0018] Figure 3 The sectional view of the heat dissipation structure provided by the embodiments of the present application is shown in the following figure:

[0019] Figure 4 The schematic diagram of the air flow direction of the heat dissipation structure provided by the embodiments of the present application is shown in the following figure: ​

[0020] Figure 5 This is a schematic diagram of the structure when the light-concentrating element and the air guide element are connected according to an embodiment of this application;

[0021] Figure 6 for Figure 5 Exploded view.

[0022] Reference numerals: 100, light-receiving surface 110, light-exiting surface 120; 200, air outlet 210; 310, air guide cavity 311, air inlet 312, clearance opening 313, air outlet 314, fixing ring 320, fastener 330; 410, color wheel 410, first light-passing hole 411, first driving component 420; 510, dynamic wheel 510, second driving component 520, swing component 530; 610, pattern wheel assembly 610, fixed pattern wheel 611, rotating pattern wheel 612, third driving component 620; 700, support component. Detailed Implementation

[0023] The following is combined Figures 1 to 6 The embodiments of this application are described in detail below, examples of which are illustrated in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this application, and should not be construed as limiting this application.

[0024] In the description of this application, it should be understood that the use of terms such as "center," "middle," "longitudinal," "transverse," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "axial," "radial," and "circumferential" to indicate orientation or positional relationships is based on the orientation or positional relationships shown in the accompanying drawings and is only for the convenience of describing this application and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application. Furthermore, features defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, unless otherwise stated, "a plurality of" means two or more.

[0025] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0026] In the embodiments of the present application, the positive direction of the Z-axis in the drawings is up, and the negative direction of the Z-axis is down.

[0027] Referring to Figure 1 , the embodiments of the present application provide a heat dissipation structure for heat dissipation of a lamp. The heat dissipation structure is beneficial to heat dissipation of an optical element, and can improve the service life of the optical element.

[0028] Exemplarily, referring to Figure 2 and Figure 3 , the heat dissipation structure comprises a light collecting member 100, an optical element and an air outlet member 200. The light collecting member 100 comprises a light inlet surface 110 and a light outlet surface 120. The optical element is arranged on a side of the light outlet surface 120 away from the light inlet surface 110. The air outlet member 200 is provided with an air outlet 210. The first air duct is formed between the air outlet 210 and the light inlet surface 110. The second air duct is formed between the air outlet 210 and the light outlet surface 120. The third air duct is formed between the air outlet 210 and the optical element.

[0029] Referring to Figure 4 , the air outlet member 200 in the embodiments of the present application can cool the light inlet surface 110 of the light collecting member 100 through the first air duct, cool the light outlet surface 120 of the light collecting member 100 through the second air duct, and cool the optical element through the third air duct. The optical element is arranged on a side of the light outlet surface 120 away from the light inlet surface 110. The light collecting member 100 can also block a part of light heat, which is beneficial to heat dissipation of the optical element and can improve the service life of the optical element. The light collecting member 100 can improve the optical effect of the light path of the lamp.

[0030] Optionally, the air outlet member 200 can be a heat dissipation fan. Of course, the air outlet member 200 can also be other heat dissipation structures capable of outputting refrigerant, which is not limited here.

[0031] Optionally, the light collecting member 100 can be a light collecting field mirror, referring to Figure 3 , the light inlet surface 110 of the light collecting field mirror is a circular arc convex surface, and the light outlet surface 120 is a plane. Optionally, the light collecting field mirror is made of quartz glass material. The optical axis of the light collecting member 100 refers to the light emitted by the light outlet surface 120 of the light collecting member 100, and the optical axis direction refers to the emission direction of the light. Exemplarily, Figure 3 , the optical axis direction in the above is from bottom to top.

[0032] Optionally, the air outlet member 200 is provided with an air outlet 210. The first air duct is formed between the air outlet 210 and the light inlet surface 110. The second air duct is formed between the air outlet 210 and the light outlet surface 120. The third air duct is formed between the air outlet 210 and the optical element.

[0033] Of course, the air outlet 210 can also be provided with two air outlets 210, one of which forms a first air duct with the light inlet surface 110, and the other forms a second air duct with the light outlet surface 120, and a third air duct with the optical element.

[0034] It can be understood that the specific number of air outlets 210 can be set according to actual needs, which is not specifically limited here. One air outlet 210 is convenient for processing the air outlet 200, and can make the structure more compact.

[0035] Hereinafter, taking "the air outlet 210 is provided with one air outlet 210, the air outlet 210 forms a first air duct with the light inlet surface 110, the air outlet 210 forms a second air duct with the light outlet surface 120, and the air outlet 210 forms a third air duct with the optical element" as an example for description.

[0036] Optionally, in some embodiments, referring to Figure 2 and Figure 3 The heat dissipation structure further comprises an air guide member 310, the air guide member 310 is formed with an air guide cavity 311, the air guide cavity 311 is in communication with the air outlet 210, the air guide member 310 is further connected with the light collector 100, and at least one of the light inlet surface 110 and the light outlet surface 120 of the light collector 100 is located in the air guide cavity 311.

[0037] Optionally, in some embodiments, the air guide member 310 is connected to one side of the light outlet surface 120 of the light collector 100, the air guide cavity 311 extends along the optical axis direction of the light collector 100, the light outlet surface 120 is located in the air guide cavity 311, so that the air outlet 210 and the light outlet surface 120 form a second air duct, the air guide cavity and the optical element form a third air duct, and part of the air outlet 210 faces the light inlet surface 110 of the light collector 100, so that the air outlet 210 and the light inlet surface 110 form a first air duct.

[0038] It can be understood that the light outlet surface 120 is located in the air guide cavity 311, and the air guide cavity 311 is in communication with the air outlet 210, so that the air flow of the air outlet 200 can enter the air guide cavity 311 and cool the light outlet surface 120. Part of the air outlet 210 faces the light inlet surface 110 of the light collector 100, so that the air flow of the air outlet 200 can blow to the light inlet surface 110 to cool the light inlet surface 110. The second air duct and the third air duct are in communication, and optionally, the third air duct is formed between the air guide cavity 311 and the optical element, so that the air flow of the air outlet 200 can blow to the optical element through the air guide cavity 311 to cool the optical element.

[0039] Exemplarily, referring to Figure 3 and Figure 5The side wall of the air guide member 310 is provided with an air inlet 312 in communication with the air guide cavity 311. The air inlet 312 is aligned with a part of the air outlet 210 of the air outlet member 200, so that a second air duct is formed between the air outlet 210 and the light emitting surface 120.

[0040] Optionally, the air guide member 310 can be an air guide cylinder. Of course, the air guide member 310 can also adopt other air guide structures, which are not specifically limited here.

[0041] Exemplarily, referring to Figure 5 and Figure 6 , the heat dissipation structure further comprises a fixing ring 320. One end of the air guide cylinder is provided with a stepped hole. The outer periphery of the light emitting surface 120 of the light collecting member 100 is attached to the side wall of the stepped hole. The fixing ring 320 is arranged on the side close to the light inlet surface 110. The fixing ring 320 is circumferentially provided with a plurality of fasteners 330. The fasteners 330 pass through the fixing ring 320, the light collecting member 100 and the air guide member 310 in sequence, so as to mount the light collecting member 100 on the air guide member 310. Optionally, the fasteners 330 can be fastening screws. Of course, the fasteners 330 can also adopt fastening bolts, pins and other fasteners 330, which are not specifically limited here.

[0042] Optionally, in some embodiments, referring to Figure 2 , the heat dissipation structure further comprises a support member 700. The support member 700 is provided with a second light passing hole. The air guide member 310 and the air outlet member 200 are both mounted on the support member 700. The second light passing hole is in communication with the air guide cavity 311. Optionally, the air outlet member 200 is arranged on one side of the air guide member 310.

[0043] Optionally, the support member 700 can be a fixed base plate. Of course, the support member 700 can also adopt other support structures, which are not specifically limited here.

[0044] Optionally, after the light collecting member 100 is mounted on the air guide member 310, the bottom surface of the fixing ring 320 can be attached to the upper surface of the support member 700. The air guide cavity 311 is aligned with the second light passing hole. The air guide member 310 is mounted on the outer periphery of the second light passing hole of the support member 700 through the fastening screws. Optionally, the light collecting member 100, the air guide member 310 and the second light passing hole can be coaxial.

[0045] Optionally, in some embodiments, referring to Figure 2 and Figure 3 , the optical element further comprises a color disc 410. The side wall of the air guide member 310 is provided with an avoiding hole 313 in communication with the air guide cavity 311. The color disc 410 can cut into or out of the optical axis of the light collecting member 100 through the avoiding hole 313.

[0046] Optionally, in some embodiments, part of the color disc 410 is cut into the air guiding cavity 311 through the avoiding opening 313, the color disc 410 is provided with a first light passing hole 411, and the color disc 410 is rotatable, and the color disc 410 can make the first light passing hole 411 coaxial with the optical axis or the axis of the first light passing hole 411 deviates from the axis of the optical axis through rotation of the color disc 410.

[0047] It can be understood that when the first light passing hole 411 is coaxial with the optical axis, the color disc 410 can cut the optical axis of the light collecting member 100, and when the axis of the first light passing hole 411 deviates from the axis of the optical axis, the color disc 410 can cut into the optical axis of the light collecting member 100.

[0048] Optionally, the area of the part of the color disc 410 extending into the air guiding cavity 311 is smaller than the cross-sectional area of the air guiding cavity 311, so that the air flow entering the air guiding cavity 311 from the air inlet 312 can cool the upper and lower surfaces of the color disc 410. It can be understood that the air flow in the air guiding cavity 311 can escape through the avoiding opening 313 to cool the part of the color disc 410 located outside the air guiding cavity 311.

[0049] Optionally, the avoiding opening 313 and the air inlet 312 can be arranged at intervals along the circumference of the air guiding member 310, and the width of the avoiding opening 313 can be smaller than the width of the air inlet 312, the upper end of the air inlet 312 is higher than the upper end of the avoiding opening 313, and the lower end of the air inlet 312 is lower than the lower end of the avoiding opening 313, which is more conducive to the air flow at the air inlet 312 blowing to the upper and lower surfaces of the color disc 410 respectively, and promoting heat dissipation of the color disc 410.

[0050] It can be understood that the avoiding opening 313 is arranged on the side wall of the air guiding member 310, which can ensure normal use of the color disc 410 while making the air guiding member 310 extend higher, so that the air flow can be guided to the surface away from the optical element of the light collecting member 100. Moreover, when the color disc 410 is cut in for use, the air flow can also escape from the avoiding opening 313, thereby taking away the heat of the part of the color disc 410 located outside the air guiding cavity 311.

[0051] Optionally, referring to Figure 3 , the heat dissipation structure further comprises a first driving member 420 connected with the color disc 410 to drive the color disc 410 to rotate.

[0052] Exemplarily, the first driving member 420 can be installed on the support member 700, and the first driving member 420 is located on one side of the second light passing hole. Optionally, the first driving member 420 can be a driving motor. Of course, the first driving member 420 can also be a gear driving structure or other structure capable of driving the color disc 410 to rotate, which is not limited here.

[0053] Of course, the color wheel 410 can also be moved horizontally to extend into or out of the air guide cavity 311 through the avoiding opening 313, so as to cut into or out of the optical axis of the light collector 100, which will not be described here.

[0054] Optionally, in some embodiments, the optical element further comprises a movable kinetic disc 510, which is arranged at the air outlet end 314 of the air guide cavity 311. The kinetic disc 510 can cut into or out of the optical axis of the light collector by moving itself.

[0055] It can be understood that the air guide cavity 311 extends along the optical axis direction. When the kinetic disc 510 moves to the position opposite to the air outlet end 314, it can cut into the optical axis. At this time, the position opposite to the air outlet end 314 of the kinetic disc 510 is the heated part, and the air flow in the air guide cavity 311 can cool the heated part of the kinetic disc 510.

[0056] Optionally, in some embodiments, referring to Figure 2 , the heat dissipation structure further comprises a second driving member 520 connected with the kinetic disc 510 to drive the kinetic disc 510 to move.

[0057] Exemplarily, the heat dissipation structure further comprises a swing member 530. The second driving member 520 is installed on the support member 700 and located at one side of the air guide member 310. The second driving member 520 is connected with one end of the swing member 530, and the other end of the swing member 530 is connected with the kinetic disc 510. The second driving member 520 can drive the swing member 530 to swing, so as to drive the kinetic disc 510 to move, thereby making the kinetic disc 510 opposite to the air outlet end 314 or staggered with the air outlet end 314.

[0058] Optionally, the second driving member 520 can be a driving motor, and the swing member 530 can be a rotating pulley. Of course, the second driving member 520 can also be a gear driving structure or other structure capable of driving the kinetic disc 510 to move, which will not be limited here.

[0059] Optionally, in some embodiments, the optical element further comprises a pattern disc assembly 610 arranged in front of the kinetic disc 510 along the optical axis direction.

[0060] Exemplarily, the pattern disc assembly 610, the kinetic disc 510, the color wheel 410 and the light collector 100 are arranged in sequence from top to bottom. That is, the optical elements are arranged on the side close to the light emitting surface 120 of the light collector 100, and the air guide member 310 is connected to the side of the light emitting surface 120 of the light collector 100. The light collector 100 can block a part of the light heat to pass through, which is beneficial to protect the optical elements such as the pattern disc assembly 610, the kinetic disc 510 and the color wheel 410.

[0061] Optionally, the pattern disc assembly 610 comprises a fixed pattern disc 611 and a rotating pattern disc 612, the fixed pattern disc 611 is arranged on the side close to the air guide 310, and the rotating pattern disc 612 is arranged on the side of the fixed pattern disc 611 away from the air guide 310.

[0062] Optionally, the heat dissipation structure further comprises a third driving member 620, the third driving member 620 is also mounted on the support 700, and the third driving member 620 is connected with the pattern disc assembly 610. Optionally, the third driving member 620 is a rotating mechanism, the fixed pattern disc 611 is fixedly installed on the pulley of the rotating mechanism, and the rotating pattern disc 612 is rotatably installed on the pulley of the rotating mechanism.

[0063] The embodiment of the present application further provides a lamp, which comprises the heat dissipation structure.

[0064] Optionally, the lamp further comprises a light assembly (not shown in the drawings), which is arranged on the side of the light collector 100 away from the air duct, and is used for providing a light source. The light emitted by the light assembly passes through the light collector 100, the color disc 410, the dynamic disc 510, the fixed pattern disc 611 and the rotating pattern disc 612 in sequence and is emitted outward.

[0065] The heat dissipation working principle of the lamp in the embodiment of the present application is as follows:

[0066] Referring to Figure 3 and Figure 4 , the air flow formed by the air outlet 200 is blown out from the air outlet 210, part of the air flow enters the air guide cavity 311 and is blown to the light emitting surface 120 of the light collector 100, and part of the air flow is directly blown to the light receiving surface 110 of the light collector 100, so that the light receiving surface 110 and the light emitting surface 120 of the light collector 100 can be cooled at the same time. The light collector 100 can also block part of the light heat, which is beneficial to protect the optical elements such as the pattern disc assembly 610, the dynamic disc 510 and the color disc 410.

[0067] The air flow entering the air guide cavity 311 can not only cool the upper and lower surfaces of the color disc 410 (in addition to cooling the part of the color disc 410 located in the air guide cavity 311, the air flow in the air guide cavity 311 can also escape through the bypass opening 313 to cool the part of the color disc 410 located outside the air guide cavity 311), but also cool the dynamic disc 510 through the air outlet end 314.

[0068] It should be noted that when the color disc 410 cuts into the optical axis, the color disc 410 intercepts most of the light heat, and the light heat reaching the dynamic disc 510 is reduced, at this time, the air flow blown out from the air outlet end 314 is also sufficient to cool the dynamic disc 510 in this state; when the first light hole 411 of the color disc 410 is coaxial with the optical axis, without the obstruction of the color disc 410, although the dynamic disc 510 receives more light heat, the air flow blown out from the air outlet end 314 also increases; at this time, the air flow blown out from the air outlet end 314 cools the heated part of the dynamic disc 510, and then blows up from the gap of the dynamic disc 510 itself to take away the heat.

[0069] When the fixed pattern disc 611 cuts into the optical axis, if the color disc 410 and the dynamic disc 510 are also in the working state, at this time, the light heat reaching the fixed pattern disc 611 is very small, and the air flow blown up from the gap of the dynamic disc 510 itself can also meet the cooling demand of the fixed pattern disc 611; if the color disc 410 and the dynamic disc 510 are in a non-working state, the optical axis will directly irradiate on the fixed pattern disc 611, but the air flow blown out from the air outlet end 314 also increases, and can also cool the heated part of the fixed pattern disc 611, and then the air flow continues to blow up from the gap of the fixed pattern disc 611 itself.

[0070] Similarly, when the rotating pattern disc 612 cuts into the optical axis, if the fixed pattern disc 611, the color disc 410 and the dynamic disc 510 are also in the working state, at this time, the light heat reaching the rotating pattern disc 612 is very small, and the air flow blown up from the gap of the fixed pattern disc 611 itself can also meet the cooling demand of the rotating pattern disc 612; if the fixed pattern disc 611, the color disc 410 and the dynamic disc 510 are in a non-working state, the optical axis will directly irradiate on the rotating pattern disc 612, but the air flow blown out from the air outlet end 314 also increases, and can also cool the heated part of the rotating pattern disc 612. Alternatively, the rotating pattern disc 612 is installed in the recess, and directly cooling the rotating pattern disc 612 in the recess is a very effective cooling method.

[0071] The lamp structure in the embodiment of the application is compact and reasonable, easy to process and assemble, and can effectively reduce the production cost; can also improve the heat dissipation efficiency and enhance the heat dissipation effect, meet the heat dissipation demand of each optical element of the high-power and small-size lamp, and thus can improve the service life of the lamp.

[0072] In the description of the present application, if the description of the terms "one embodiment", "some examples", "some embodiments", "illustrative embodiments", "example", "specific example", or "some examples" appears, it means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in the embodiments or examples of the present application. In the present application, the illustrative description of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0073] The embodiments of the present application are described in detail above in combination with the drawings, but the present application is not limited to the above-described embodiments, and various changes can be made within the knowledge of those skilled in the art without departing from the purpose of the present application.

[0074] In the description of the present application, if the patent names appear as "and", it means "and" relationship, not "or" relationship. For example, the patent name is "one kind of A, B", which means that the content claimed by the present application is: the technical solution of the subject name A and the technical solution of the subject name B.

Claims

1. A heat dissipation structure, characterized in that, include: A light-concentrating element, the light-concentrating element comprising an incident light surface and an exit light surface; An optical element, wherein the optical element is disposed on the side of the light-emitting surface opposite to the light-incident surface; An air outlet is provided, an air outlet is formed between the air outlet and the light-incident surface, a first air duct is formed between the air outlet and the light-emitting surface, and a third air duct is formed between the air outlet and the optical element.

2. The heat dissipation structure according to claim 1, characterized in that: The heat dissipation structure further includes an air guide, an air guide cavity is formed inside the air guide, the air guide cavity is connected to the air outlet, the air guide is also connected to the light-concentrating element, and at least one of the light-incident surface and the light-exit surface of the light-concentrating element is located inside the air guide cavity.

3. The heat dissipation structure according to claim 2, characterized in that: The air guide is connected to one side of the light-emitting surface of the light-concentrating element. The air guide cavity extends along the optical axis of the light-concentrating element. The light-emitting surface is located inside the air guide cavity, so that a second air channel is formed between the air outlet and the light-emitting surface. A third air channel is formed between the air guide cavity and the optical element. A portion of the air outlet faces the light-incident surface of the light-concentrating element, so that a first air channel is formed between the air outlet and the light-incident surface.

4. The heat dissipation structure according to claim 3, characterized in that: The optical element includes a color wheel, and the side wall of the air guide is provided with a clearance opening that communicates with the air guide cavity. The color wheel can cut into or out of the optical axis of the light-concentrating element through the clearance opening.

5. The heat dissipation structure according to claim 4, characterized in that: Part of the color wheel is cut into the air guide cavity through the clearance opening. The color wheel has a first light-passing hole. The color wheel is rotatable. The rotation of the color wheel can make the first light-passing hole coaxial with the air guide component, or the axis of the first light-passing hole is misaligned with the axis of the air guide component.

6. The heat dissipation structure according to claim 5, characterized in that: The heat dissipation structure also includes a first driving component, which is connected to the color wheel to drive the color wheel to rotate.

7. The heat dissipation structure according to claim 3, characterized in that: The optical element also includes a movable motion disk, which is disposed at the air outlet of the air guide cavity. The motion disk can cut into or out of the optical axis of the focusing element by its own movement.

8. The heat dissipation structure according to claim 7, characterized in that: The heat dissipation structure also includes a second driving component, which is connected to the motion disk to drive the motion disk to move.

9. The heat dissipation structure according to claim 7, characterized in that: The optical element also includes a pattern disk assembly, which is disposed in front of the motion disk along the optical axis.

10. A lamp, characterized in that: The lamp includes the heat dissipation structure as described in any one of claims 1-9.

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