Lamp body and lamp

Abstract

The lamp body comprises a first shell, a radiator, a light source assembly, a first heat dissipation piece and a second heat dissipation piece, and a first cavity with an opening in one end is formed in the first shell. The radiator is connected with the first shell and covers the opening of the first cavity to form a first sealing cavity. The light source assembly is arranged in the first sealing cavity and connected with the radiator. The first heat dissipation row is arranged in the first cavity and connected with the first shell. The second heat dissipation row is arranged outside the first cavity and connected with the first shell, and the first heat dissipation row and the second heat dissipation row are oppositely arranged. The light source assembly is arranged in the first sealing cavity, so that the lamp body can meet the sealing and waterproof requirements of the light source assembly. The arrangement of the radiator, the first heat dissipation row and the second heat dissipation row can accelerate the heat release process of the lamp body and reduce the temperature of the first sealing cavity, so that the situation that the performance of an electronic element arranged in the first sealing cavity is affected due to the fact that the temperature of the first sealing cavity is too high can be avoided.

Description

Technical Field

[0001] The present application relates to the technical field of stage lamps, and in particular to a lamp body and a lamp. Background Art

[0002] At present, stage lamps are not only used in indoor occasions, but also need to be used in outdoor occasions. In some application scenarios, stage lamps need to be placed in water. In order to meet these outdoor scenarios, the lamp body should be able to seal the light source and electrical components to achieve waterproof function. However, since the light source and electrical components will generate huge heat when the lamp is running, in order to avoid the light source electronic components of the lamp being in a high temperature environment for a long time, the lamp needs to be cooled.

[0003] Generally, the heat inside the waterproof stage lamp is mainly dissipated to the outside of the lamp body through natural convection and thermal radiation. However, the heat dissipation efficiency is low when the lamp is dissipated through natural convection and thermal radiation. This will cause the temperature inside the lamp body to be too high when the lamp is working for a long time, which will cause the electrical components to be unstable or fail. Summary of the invention

[0004] Based on this, it is necessary to provide a lamp body and a lamp to address the problem of low heat dissipation efficiency of the lamp body.

[0005] A lamp body, comprising:

[0006] A first shell, wherein the first shell forms a first cavity with an open end;

[0007] a heat sink connected to the first housing and covering the opening of the first cavity to form a first sealed cavity;

[0008] A light source assembly, which is disposed in the first sealed cavity and connected to the heat sink;

[0009] a first heat sink disposed in the first cavity and connected to the first housing;

[0010] A second heat sink is disposed outside the first cavity and connected to the first shell, and the first heat sink is disposed opposite to the second heat sink.

[0011] The technical solution is further described below:

[0012] In one embodiment, the lamp body also includes a first heat dissipation driving component, which is disposed outside the first cavity and connected to the first shell, and the first heat dissipation driving component is arranged opposite to the second heat dissipation radiator, and the first heat dissipation driving component is used to generate airflow to force convection on the second heat dissipation radiator.

[0013] In one embodiment, the number of the first heat dissipation driving components, the number of the first heat dissipation ribs, and the number of the second heat dissipation ribs are all two, the two first heat dissipation ribs are arranged opposite to each other in the first cavity, the first heat dissipation ribs correspond one-to-one to the second heat dissipation ribs, and the second heat dissipation ribs correspond one-to-one to the first heat dissipation driving components.

[0014] In one embodiment, the lamp body also includes a lower shell, which is connected to the first shell, and the lower shell forms a second cavity with an opening at one end and an air inlet and an air outlet connected to the second cavity, the radiator is arranged in the second cavity, the air inlet is used for external airflow to enter the second cavity, and the air outlet is used for airflow in the second cavity to flow out of the second cavity.

[0015] In one embodiment, the air outlet is arranged on the side wall of the second cavity and is a ring-shaped structure; the lamp body also includes a plurality of ribs, and the plurality of ribs are arranged at intervals on the air outlet along the extension direction of the second cavity, and the ribs are arranged at an angle to the outer surface of the lower shell.

[0016] In one embodiment, the radiator includes a heat dissipation bracket, a second heat dissipation driving component and a third heat dissipation row. The heat dissipation bracket is connected to the first shell and covers the opening of the first cavity to form the first sealed cavity. The light source assembly is arranged on the heat dissipation bracket, the third heat dissipation row is arranged on the side of the heat dissipation bracket away from the light source assembly, and the third heat dissipation row is arranged opposite to the air inlet. A through ventilation channel is opened on the heat dissipation bracket, and the ventilation channel is arranged opposite to the third heat dissipation row. The second heat dissipation driving component is arranged in the ventilation channel, and the second heat dissipation driving component is used to generate an airflow flowing toward the side of the first shell.

[0017] In one embodiment, the third heat sink comprises at least a first heat sink group, a second heat sink group and a third heat sink group connected to the heat sink bracket, the third heat sink group is located between the first heat sink group and the second heat sink group, the first heat sink group, the second heat sink group and the third heat sink group are all arranged opposite to the air inlet; the number of the ventilation channels and the number of the second heat sink driving members are both four, two of the ventilation channels are arranged opposite to the first heat sink group, and the other two of the ventilation channels are arranged opposite to the second heat sink group, and the second heat sink driving members correspond to the ventilation channels one by one;

[0018] And / or, the third heat sink includes a plurality of heat sinks arranged at intervals, and the heat sinks are all connected to the heat sink bracket. The plurality of radiators also include a third heat sink driver and two fourth heat sink drivers. The third heat sink driver is disposed on a side of the third heat sink away from the heat sink bracket, and an air inlet surface of the third heat sink driver is disposed opposite to the air inlet. The two fourth heat sink drivers are disposed on both sides of the heat sink, and an air outlet surface of the fourth heat sink driver is disposed opposite to the air outlet.

[0019] In one embodiment, the first shell includes a shell bracket, an outer shell and an upper shell, the shell bracket is connected to the outer shell, the upper shell is connected to the shell bracket and one end of the outer shell to jointly enclose the first cavity, the radiator is connected to the end of the shell bracket facing away from the upper shell, and the first heat sink and the second heat sink are both connected to the shell bracket.

[0020] In one embodiment, the lamp body further includes a first seal, a second seal and a third seal, wherein the first seal is arranged between the shell bracket and the outer shell, the second seal is arranged between the shell bracket and the upper shell, and the third seal is arranged between the shell bracket and the radiator.

[0021] A lamp comprises any one of the lamp bodies described above.

[0022] In the above-mentioned lamp body and lamp, the radiator is connected to the first shell and covers the opening of the first cavity to form a first sealed cavity, and the light source assembly is arranged in the first sealed cavity, so that the lamp body can meet the requirements of sealing and waterproofing of the light source assembly. The light source assembly is connected to the radiator, so that part of the heat generated by the light source assembly when working can be dissipated to the outside of the first sealed cavity through the radiator, and another part of the heat generated by the light source assembly when working will be diffused in the first sealed cavity in the form of thermal fluid. Among them, when the thermal fluid passes through the first heat sink, it will exchange heat with the first heat sink, and the first heat sink will transfer the heat to the second heat sink located outside the first shell through the first shell, and then when the low-temperature fluid from the outside passes through the second heat sink, the second heat sink can exchange heat with the low-temperature fluid, so that the heat diffused into the first sealed cavity can be dissipated to the outside of the first sealed cavity through the first heat sink and the second heat sink, realizing the heat dissipation process of the first sealed cavity. Therefore, compared with the traditional solution of dissipating the heat inside the lamp body through natural convection and thermal radiation, the arrangement of the radiator, the first heat sink and the second heat sink can accelerate the heat release process of the lamp body, reduce the temperature of the first sealed cavity, and maintain the temperature of the first sealed cavity within an appropriate range, thereby avoiding the performance of the electronic components arranged in the first sealed cavity being affected by the excessively high temperature of the first sealed cavity. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] The drawings constituting a part of the present application are used to provide a further understanding of the present application. The illustrative embodiments of the present application and their descriptions are used to explain the present application and do not constitute an improper limitation on the present application.

[0024] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the description of the embodiments 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 creative work.

[0025] In addition, the drawings are not drawn to a 1:1 scale, and the relative sizes of the various elements are drawn only as examples in the drawings and are not necessarily drawn according to the true scale.

[0026] FIG. 1 is a schematic cross-sectional view of a lamp body in an embodiment of the present application.

[0027] FIG. 2 is a schematic structural diagram of a lamp body in an embodiment of the present application.

[0028] FIG. 3 is a schematic structural diagram of the connection between the first housing and the radiator in one embodiment of the present application.

[0029] Description of reference numerals:

[0030] 100. lamp body; 1. first shell; 1a. first cavity; 11. upper shell; 12. outer shell; 13. shell bracket; 2. second heat sink; 3. first heat dissipation driver; 4. light source assembly; 5. ribs; 6. lower shell; 6a. air outlet; 6b. second cavity; 6c. air inlet; 7. radiator; 71. third heat dissipation driver; 72. third heat sink; 721. first heat dissipation group; 722. third heat dissipation group; 723. second heat dissipation group; 73. heat dissipation bracket; 74. second heat dissipation driver; 75. fourth heat dissipation driver; 8. first heat sink. DETAILED DESCRIPTION

[0031] In order to make the above-mentioned purposes, features and advantages of the present application more obvious and easy to understand, the specific implementation methods of the present application are described in detail below in conjunction with the accompanying drawings. In the following description, many specific details are set forth to facilitate a full understanding of the present application. However, the present application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without violating the connotation of the present application, so the present application is not limited by the specific embodiments disclosed below.

[0032] In the description of the present application, it should be understood that if the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. appear, the orientation or position relationship indicated by these terms is based on the orientation or position relationship shown in the accompanying drawings, which is only for the convenience of describing the present application and simplifying the description, and does 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 cannot be understood as a limitation on the present application.

[0033] In addition, if the terms "first" or "second" appear, these terms are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of the features. In the description of this application, if the term "plurality" appears, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0034] In this application, unless otherwise clearly specified and limited, if the terms "installed", "connected", "connected", "fixed" and the like appear, these terms should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integrated connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to the specific circumstances.

[0035] In the present application, unless otherwise clearly specified and limited, if there is a description that a first feature is "above" or "below" a second feature, etc., or similar descriptions appear, it may mean that the first and second features are in direct contact, or that the first and second features are in indirect contact through an intermediate medium. Moreover, the first feature being "above", "above" and "above" the second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. The first feature being "below", "below" and "below" the second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0036] It should be noted that if an element is referred to as being "fixed to" or "disposed on" another element, it may be directly on the other element or there may be a central element. If an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. If any, the terms "vertical", "horizontal", "upper", "lower", "left", "right" and similar expressions used in this application are for illustrative purposes only and do not represent the only implementation method.

[0037] Referring to FIG. 1 and FIG. 2 , a lamp body 100 provided in an embodiment of the present application includes a first shell 1, a heat sink 7, a light source assembly 4, a first heat sink 8 and a second heat sink 2. The first shell 1 forms a first cavity 1a with an opening at one end. The heat sink 7 is connected to the first shell 1 and covers the opening of the first cavity 1a to form a first sealed cavity. The light source assembly 4 is disposed in the first sealed cavity and connected to the heat sink 7. The first heat sink 8 is disposed in the first cavity 1a and connected to the first shell 1. The second heat sink 2 is disposed outside the first cavity 1a and connected to the first shell 1, and the first heat sink 8 and the second heat sink 2 are disposed opposite to each other.

[0038] In the above-mentioned lamp body 100, the heat sink 7 is connected to the first shell 1 and covers the opening of the first cavity 1a to form a first sealed cavity, and the light source assembly 4 is arranged in the first sealed cavity, so that the lamp body 100 can meet the requirements of sealing and waterproofing of the light source assembly 4. The light source assembly 4 is connected to the heat sink 7, so that part of the heat generated by the light source assembly 4 when working can be dissipated to the outside of the first sealed cavity through the heat sink 7, and another part of the heat generated by the light source assembly 4 when working will be diffused in the first sealed cavity in the form of thermal fluid. Among them, when the thermal fluid passes through the first heat sink 8, it will exchange heat with the first heat sink 8, and the first heat sink 8 will transfer the heat to the second heat sink 2 located outside the first shell 1 through the first shell 1, and then when the low-temperature fluid from the outside passes through the second heat sink 2, the second heat sink 2 can exchange heat with the low-temperature fluid, so that the heat diffused into the first sealed cavity can be dissipated to the outside of the first sealed cavity through the first heat sink 8 and the second heat sink 2, so as to realize the heat dissipation process of the first sealed cavity. Therefore, compared with the traditional solution of dissipating the internal heat of the lamp body 100 by natural convection and thermal radiation, the arrangement of the radiator 7, the first heat sink 8 and the second heat sink 2 can accelerate the heat release process of the lamp body 100, reduce the temperature of the first sealed cavity, and maintain the temperature of the first sealed cavity within a suitable range, thereby avoiding the performance of the electronic components arranged in the first sealed cavity being affected by the excessive temperature of the first sealed cavity.

[0039] Specifically, both the first heat sink 8 and the second heat sink 2 may include a plurality of fins arranged along the circumferential direction of the side wall of the first cavity 1a, and the fins are connected to the first shell 1. When the hot fluid in the first sealed cavity flows through the surface of the fins of the first heat sink 8, the hot fluid exchanges heat with the fins in the first heat sink 8, so that the hot fluid releases heat to form a cold fluid, thereby reducing the temperature of the first sealed cavity. Since the second heat sink 2 is located outside the first shell 1, the temperature of the second heat sink 2 will be lower than the temperature of the first heat sink 8, so that the first heat sink 8 can transfer the absorbed heat to the second heat sink 2 through the first shell 1. Then, when the low-temperature fluid in the outside flows through the surface of the fins of the second heat sink 2, the low-temperature fluid can exchange heat with the second heat sink 2, take away the heat of the second heat sink 2, and keep the temperature of the second heat sink 2 at a lower state. Therefore, the heat in the first sealed cavity can be continuously dissipated to the outside of the first sealed cavity through the first heat sink 8 and the second heat sink 2, thereby realizing rapid heat dissipation of the lamp body 100.

[0040] Further, in one embodiment, as shown in FIG. 1 , FIG. 2 and FIG. 3 , the lamp body 100 further includes a first heat dissipation driving member 3, the first heat dissipation driving member 3 is arranged outside the first cavity 1a and connected to the first shell 1, the first heat dissipation driving member 3 is arranged opposite to the second heat dissipation rib 2, and the first heat dissipation driving member 3 is used to generate airflow to force convection on the second heat dissipation rib 2. Specifically, the air inlet surface of the first heat dissipation driving member 3 faces the side away from the first shell 1, and the air outlet surface faces the second heat dissipation rib 2, so that when the first heat dissipation driving member 3 is working, it can accelerate the speed of the external low-temperature fluid flowing through the second heat dissipation rib 2, so that the low-temperature airflow generated by the first heat dissipation driving member can actively force convection heat exchange on the surface of the second heat dissipation rib 2, thereby improving the heat exchange efficiency between the second heat dissipation rib 2 and the low-temperature fluid, thereby further improving the heat exchange efficiency between the hot fluid in the first sealed cavity and the first heat dissipation rib 8, and accelerating the heat dissipation efficiency of the lamp body 100.

[0041] Optionally, the first heat dissipation driving member 3 may be a fan or a blower. Specifically, the air outlet surface of the fan or the blower should be arranged opposite to the second heat dissipation rib 2. For example, when the first heat dissipation driving member 3 is an axial flow fan, the air outlet surface of the fan is arranged opposite to the fins of the second heat dissipation rib 2, and the air inlet surface faces the side away from the housing.

[0042] Optionally, the first heat dissipation driving member 3 may be connected to the outer side of the first shell 1 through a fixing column.

[0043] Optionally, in one embodiment, as shown in FIG. 1 , the number of the first heat dissipation driving members 3, the number of the first heat dissipation ribs 8, and the number of the second heat dissipation ribs 2 are all two, and the two first heat dissipation ribs 8 are arranged opposite to each other in the first cavity 1a, and the first heat dissipation ribs 8 correspond to the second heat dissipation ribs 2 one by one, and the second heat dissipation ribs 2 correspond to the first heat dissipation driving members 3 one by one. When the number of the first heat dissipation ribs 8, the second heat dissipation ribs 2, and the first heat dissipation driving members 3 is increased, the first heat dissipation ribs 8 and the second heat dissipation ribs 2 can discharge the heat inside the lamp body 100 to the outside more quickly, thereby further accelerating the heat dissipation of the first sealed cavity, and further facilitating the improvement of the heat dissipation effect of the lamp body 100.

[0044] Optionally, in other embodiments, the number of first heat sinks 8, second heat sinks 2 and first heat dissipation driving components 3 may be more than two, wherein multiple first heat sinks 8 are arranged at intervals on the inner periphery of the side wall of the first cavity 1a, and the first heat sinks 8 correspond one-to-one to the second heat sinks 2, and the second heat sinks 2 correspond one-to-one to the first heat dissipation driving components 3.

[0045] In one embodiment, as shown in FIG. 1 and FIG. 2 , the lamp body 100 further includes a lower shell 6, which is connected to the first shell 1, and is formed with a second cavity 6b with an opening at one end and an air inlet 6c and an air outlet 6a connected to the second cavity 6b, and a heat sink 7 is provided in the second cavity 6b, and the air inlet 6c is used for allowing external airflow to enter the second cavity 6b, and the air outlet 6a is used for allowing the airflow in the second cavity 6b to flow out of the second cavity 6b. In this way, the lamp body 100 can be formed with a first sealed cavity and a second cavity 6b that are independent of each other, so that the light source assembly 4 can be sealed in the first sealed cavity to meet the waterproof requirements. The lower shell 6 is provided with an air inlet 6c and an air outlet 6a connected to the second cavity 6b, so that the external airflow can enter the second cavity 6b from the air inlet 6c, and flow out from the air outlet 6a after heat exchange with the radiator 7 in the second cavity 6b, thereby forming an open gas cycle in the second cavity 6b, which is conducive to improving the heat dissipation efficiency of the radiator 7 and the heat exchange efficiency between the light source assembly 4 and the radiator 7. In addition, since the first sealed cavity and the second cavity 6b are independent cavities, the fluids between the first cavity 1a and the second cavity 6b will not interfere with each other, which is conducive to shortening the heat exchange path of each cavity and improving the heat exchange efficiency. At the same time, the independent design of each cavity can also reasonably utilize the structural space and reduce the heat dissipation cost.

[0046] Further, in one embodiment, in combination with FIG. 1 and FIG. 2 , the air outlet 6a is arranged on the side wall of the second cavity 6b and is an annular structure. The lamp body 100 further includes a plurality of ribs 5, which are arranged at intervals at the air outlet 6a along the extension direction of the second cavity 6b. The ribs 5 are arranged at an angle to the outer surface of the lower shell 6. When the radiator 7 is arranged in the second cavity 6b, and the air outlet 6a is arranged in the second cavity 6b, it is beneficial for the airflow after heat exchange with the radiator 7 in the second cavity 6b to flow out of the second cavity 6b from all angles, thereby facilitating the improvement of the heat dissipation of the radiator 7, and further facilitating the improvement of the heat exchange efficiency of the light source assembly 4. The arrangement of the ribs 5 enables the air outlet 6a to form a shutter structure, which is beneficial to prevent the high-temperature airflow flowing out of the air outlet 6a from flowing back into the second cavity 6b too quickly, thereby facilitating the improvement of the heat dissipation of the radiator 7.

[0047] Optionally, the angle between the rib 5 and the outer surface of the lower shell 6 may be between 30° and 45°.

[0048] Further, optionally, the air inlet 6c is provided on the bottom wall of the second cavity 6b, and the air inlet 6c is arranged opposite to the radiator 7, so that when the external fluid enters the second cavity 6b from the air inlet 6c, it can exchange heat with the radiator 7. In addition, a plurality of ribs may be arranged at intervals on the air inlet 6c.

[0049] In one embodiment, as shown in FIG. 1 and FIG. 3 , the heat sink 7 includes a heat sink bracket 73, a second heat sink driving member 74 and a third heat sink 72. The heat sink bracket 73 is connected to the first housing 1 and covers the opening of the first cavity 1a to form a first sealed cavity. The light source assembly 4 is arranged on the heat sink bracket 73. The third heat sink 72 is arranged on the side of the heat sink bracket 73 away from the light source assembly 4, and the third heat sink 72 is arranged opposite to the air inlet 6c. A ventilation channel is provided on the heat sink bracket 73. The ventilation channel is arranged opposite to the third heat sink 72. The second heat sink driving member 74 is arranged in the ventilation channel. The second heat sink driving member 74 is used to generate an airflow flowing toward one side of the first housing 1. In this way, the heat sink bracket 73 and the first housing 1 can be enclosed together to form a first sealed cavity, so that the lamp body can achieve a waterproof effect on the light source assembly 4 arranged in the first sealed cavity. The third heat sink 72 and the light source assembly 4 are arranged on opposite sides of the heat sink bracket 73, so that the open gas circulation formed in the second cavity 6b can accelerate the heat dissipation of the light source assembly 4 by the heat sink 7. Specifically, when the external airflow enters the second cavity 6b and passes through the surface of the third heat sink 72, it can quickly take away the heat transferred from the light source assembly 4 to the third heat sink 72, thereby accelerating the heat transfer speed between the radiator 7 and the light source assembly 4 and improving the heat dissipation efficiency. In addition, after the external airflow exchanges heat with the third heat sink 72, a low-temperature fluid can be formed at the third heat sink 72, which makes the air inlet surface of the second heat dissipation driving member 74 arranged in the ventilation channel face the third heat sink 72, and the air outlet surface faces the first shell 1, that is, when the second heat dissipation driving member 74 guides the air to the side where the first shell 1 is located, the second heat dissipation driving member 74 can guide the low-temperature fluid upward to the periphery of the light source assembly 4, thereby facilitating the improvement of the heat dissipation efficiency of the light source assembly 4. At the same time, this is also beneficial to the heat dissipation of the first shell 1.

[0050] Optionally, a relief groove is provided in the middle of the heat dissipation bracket 73 on one side facing the first shell 1 , and the relief groove is used to form a relief space to conveniently place the light source assembly 4 on the heat dissipation assembly.

[0051] Optionally, the second heat dissipation driving member 74 may be a blower or a fan, such as an axial flow fan.

[0052] Further, in one embodiment, in combination with FIG. 1 and FIG. 3 , the third heat sink 72 at least includes a first heat sink group 721, a second heat sink group 723 and a third heat sink group 722 connected to the heat sink bracket 73, the third heat sink group 722 is located between the first heat sink group 721 and the second heat sink group 723, and the first heat sink group 721, the second heat sink group 723 and the third heat sink group 722 are all arranged opposite to the air inlet 6c. The number of ventilation channels and the number of second heat dissipation driving members 74 are both four, two ventilation channels are arranged opposite to the first heat sink group 721, and the other two ventilation channels are arranged opposite to the second heat sink group 723, and the second heat dissipation driving members 74 correspond to the ventilation channels one by one. When multiple second heat dissipation driving members 74 are provided, it is beneficial to improve the heat dissipation speed of the radiator 7, thereby avoiding excessive temperature at the light source assembly 4, which affects the performance of the light source assembly 4. Specifically, the first heat dissipation group 721 and the second heat dissipation group 723 can be arranged on both sides of the light source assembly 4, and the third heat dissipation group 722 can be arranged at the bottom of the light source assembly 4, so that the two second heat dissipation driving components 74 arranged opposite to the first heat dissipation group 721 and the two second heat dissipation driving components 74 arranged opposite to the second heat dissipation group 723 can guide the cold fluid at the first heat dissipation group 721 and the second heat dissipation group 723 upward, thereby cooling and dissipating the light source assembly 4 in a circumferential direction, and the third heat dissipation group 722 can dissipate heat at the bottom of the light source assembly 4.

[0053] Optionally, the bottom wall of the second cavity 6b may be provided with three air inlets 6c, and the three air inlets 6c correspond one-to-one to the three heat dissipation groups, so that the external fluid entering the second cavity 6b from the air inlets 6c can better exchange heat with the heat dissipation groups.

[0054] Further, in one embodiment, as shown in combination with FIG. 1 and FIG. 3 , the third heat sink 72 includes a plurality of heat sinks arranged at intervals, and the plurality of heat sinks are connected to the heat sink bracket 73. The radiator 7 also includes a third heat sink driver 71 and two fourth heat sink drivers 75. The third heat sink driver 71 is disposed on the side of the third heat sink 72 away from the heat sink bracket 73. The air inlet surface of the third heat sink driver 71 is disposed opposite to the air inlet 6c. The two fourth heat sink drivers 75 are disposed on both sides of the heat sink, and the air outlet surface of the fourth heat sink driver 75 is disposed opposite to the air outlet 6a. The third heat sink driver 71 enables the external airflow to quickly enter the second cavity 6b, and the fourth heat sink driver 75 enables the gas in the second cavity 6b to quickly discharge the second cavity 6b. Then, under the joint action of the third heat sink driver 71 and the fourth heat sink driver 75, the flow speed of the open gas circulation formed in the second cavity 6b can be accelerated, which is conducive to improving the heat dissipation efficiency of the radiator 7.

[0055] Optionally, the third heat dissipation driving component 71 is fixed to the heat dissipation bracket 73 by a shock-absorbing rubber column, and is arranged on the side of the third heat dissipation group 722 away from the heat dissipation bracket 73, and the air outlet surface of the third heat dissipation driving component 71 is arranged opposite to the third heat dissipation group 722, and the air inlet surface of the third heat dissipation driving component 71 is opposite to the air inlet 6c, so that when the third heat dissipation driving component 71 is working, it can generate airflow to force convection on the third heat dissipation group 722, thereby accelerating the heat dissipation speed of the third heat dissipation group 722 and improving the heat dissipation effect of the lamp body 100.

[0056] Specifically, the first heat dissipation group 721, the second heat dissipation group 723 and the third heat dissipation group 722 in the third heat dissipation row 72 all include a plurality of heat dissipation fins arranged at intervals, so that when the external cold air flow flows through the surface of the heat dissipation fins, the cold air flow can exchange heat with the heat dissipation fins to take away the heat in the third heat dissipation row 72, thereby realizing the heat dissipation of the radiator 7.

[0057] In one embodiment, as shown in FIG. 1 , the first housing 1 includes a housing support 13, a housing 12 and an upper housing 11, the housing support 13 is connected to the housing 12, the upper housing 11 is connected to the housing support 13 and one end of the housing 12 to enclose together to form a first cavity 1a, the radiator 7 is connected to the end of the housing support 13 away from the upper housing 11, and the first heat sink 8 and the second heat sink 2 are connected to the housing support 13. The housing 12, the upper housing 11 and the radiator 7 are all connected to the housing support 13, so that the light source assembly 4 can be effectively enclosed in the first sealed cavity to achieve a waterproof effect of the lamp body 100. The first heat sink 8 and the second heat sink 2 are both arranged on the housing support 13, so that the first heat sink 8 and the second heat sink 2 can effectively dissipate heat for the lamp body 100. Each component in the lamp body 100 is indirectly or directly connected to the housing support 13, which makes the structure of the lamp body 100 compact, reasonable and simple. In addition, it is conducive to improving the convenience of manufacturing and maintenance, as well as the reliability of the lamp body 100.

[0058] Optionally, a fixing column for fixing the first heat dissipation driving component 3 is provided on the outer side of the shell bracket 13. Through the fixing column, the first heat dissipation driving component 3 can be reliably arranged on the shell bracket 13, so that the first heat dissipation driving component 3 can stably blow airflow toward the second heat sink 2 when working.

[0059] Optionally, the lower shell 6 is connected to the end of the shell bracket 13 that is away from the upper shell 11, so that the lamp body 100 can form a first sealed cavity and a second cavity 6b that are independent of each other. This design enables the lamp body 100 to form a first sealed cavity and a second cavity 6b that are independent of each other, so that the fluid between the first cavity 1a and the second cavity 6b will not interfere with each other, which is conducive to shortening the heat exchange path of each cavity and improving the heat exchange efficiency. At the same time, it can also reasonably use the structural space and reduce the heat dissipation cost.

[0060] Furthermore, the lamp body 100 further includes a first seal, a second seal and a third seal, wherein the first seal is disposed between the housing support 13 and the housing 12. The second seal is disposed between the housing support 13 and the upper housing 11, and the third seal is disposed between the housing support and the radiator 7. The provision of the seal can better ensure the sealing effect of the first sealed cavity, thereby facilitating the improvement of the waterproof performance of the lamp body 100.

[0061] Specifically, the housing bracket 13 can be arranged in the first mounting groove, the second mounting groove and the third mounting groove, and the first sealing member is arranged in the first mounting groove to seal the housing bracket 13 and the housing 12. The second sealing member is arranged in the second mounting groove to seal the housing bracket 13 and the upper housing 11. The third sealing member is arranged in the third mounting groove to seal the housing bracket 13 and the heat dissipation bracket 73, thereby ensuring that the first sealed cavity and the second cavity 6b are independent of each other.

[0062] Optionally, the sealing member may be made of a material having waterproof properties, such as a waterproof rubber strip.

[0063] An embodiment of the present application further provides a lamp, which includes the lamp body 100 in any of the above embodiments. The lamp further includes a focusing structure, a color pattern assembly, and a cutting assembly, which are all arranged in the first sealed cavity and connected to the first housing. Thus, the lamp body 100 can achieve a waterproof effect on the focusing structure, the color pattern assembly, and the cutting assembly.

[0064] In the above-mentioned lamp body 100, the heat sink 7 is connected to the first shell 1 and covers the opening of the first cavity 1a to form a first sealed cavity, and the light source assembly 4 is arranged in the first sealed cavity, so that the lamp body 100 can meet the requirements of sealing and waterproofing of the light source assembly 4. The light source assembly 4 is connected to the heat sink 7, so that part of the heat generated by the light source assembly 4 when working can be dissipated to the outside of the first sealed cavity through the heat sink 7, and another part of the heat generated by the light source assembly 4 when working will be diffused in the first sealed cavity in the form of thermal fluid. Among them, when the thermal fluid passes through the first heat sink 8, it will exchange heat with the first heat sink 8, and the first heat sink 8 will transfer the heat to the second heat sink 2 located outside the first shell 1 through the first shell 1, and then when the low-temperature fluid from the outside passes through the second heat sink 2, the second heat sink 2 can exchange heat with the low-temperature fluid, so that the heat diffused into the first sealed cavity can be dissipated to the outside of the first sealed cavity through the first heat sink 8 and the second heat sink 2, so as to realize the heat dissipation process of the first sealed cavity. Therefore, compared with the traditional solution of dissipating the internal heat of the lamp body 100 by natural convection and thermal radiation, the arrangement of the radiator 7, the first heat sink 8 and the second heat sink 2 can accelerate the heat release process of the lamp body 100, reduce the temperature of the first sealed cavity, and maintain the temperature of the first sealed cavity within a suitable range, thereby avoiding the performance of the electronic components arranged in the first sealed cavity being affected by the excessive temperature of the first sealed cavity.

[0065] The technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0066] The above-described embodiments only express several implementation methods of the present application, and the descriptions thereof are relatively specific and detailed, but they cannot be construed as limiting the scope of the patent application. It should be pointed out that, for a person of ordinary skill in the art, several variations and improvements can be made without departing from the concept of the present application, and these all belong to the protection scope of the present application. Therefore, the protection scope of the patent application shall be subject to the attached claims.

Claims

1. A lamp body, characterized in that: include: A first shell, wherein the first shell forms a first cavity with an open end; a heat sink connected to the first housing and covering the opening of the first cavity to form a first sealed cavity; A light source assembly, which is disposed in the first sealed cavity and connected to the heat sink; a first heat sink disposed in the first cavity and connected to the first housing; A second heat sink is disposed outside the first cavity and connected to the first shell, and the first heat sink is disposed opposite to the second heat sink.

2. The lamp body according to claim 1, characterized in that: The lamp body also includes a first heat dissipation driving component, which is arranged outside the first cavity and connected to the first shell. The first heat dissipation driving component is arranged opposite to the second heat dissipation radiator, and the first heat dissipation driving component is used to generate airflow to force convection on the second heat dissipation radiator.

3. The lamp body according to claim 2, characterized in that: The number of the first heat dissipation driving components, the number of the first heat dissipation ribs, and the number of the second heat dissipation ribs are all two, the two first heat dissipation ribs are arranged opposite to each other in the first cavity, the first heat dissipation ribs correspond one-to-one to the second heat dissipation ribs, and the second heat dissipation ribs correspond one-to-one to the first heat dissipation driving components.

4. The lamp body according to claim 1, characterized in that: The lamp body also includes a lower shell, which is connected to the first shell, and the lower shell forms a second cavity with an opening at one end and an air inlet and an air outlet connected to the second cavity. The radiator is arranged in the second cavity, and the air inlet is used for external airflow to enter the second cavity, and the air outlet is used for airflow in the second cavity to flow out of the second cavity.

5. The lamp body according to claim 4, characterized in that: The air outlet is arranged on the side wall of the second cavity and is an annular structure; the lamp body also includes a plurality of ribs, which are arranged at intervals on the air outlet along the extension direction of the second cavity, and the ribs are arranged at an angle to the outer surface of the lower shell.

6. The lamp body according to claim 4, characterized in that: The radiator includes a heat dissipation bracket, a second heat dissipation driving component and a third heat dissipation row. The heat dissipation bracket is connected to the first shell and covers the opening of the first cavity to form the first sealed cavity. The light source assembly is arranged on the heat dissipation bracket, the third heat dissipation row is arranged on the side of the heat dissipation bracket away from the light source assembly, and the third heat dissipation row is arranged opposite to the air inlet. A through ventilation channel is opened on the heat dissipation bracket, and the ventilation channel is arranged opposite to the third heat dissipation row. The second heat dissipation driving component is arranged in the ventilation channel, and the second heat dissipation driving component is used to generate an airflow flowing toward the side of the first shell.

7. The lamp body according to claim 6, characterized in that: The third heat sink at least includes a first heat sink group, a second heat sink group and a third heat sink group connected to the heat sink bracket, the third heat sink group is located between the first heat sink group and the second heat sink group, and the first heat sink group, the second heat sink group and the third heat sink group are all arranged opposite to the air inlet; the number of the ventilation channels and the number of the second heat sink driving members are both four, two of the ventilation channels are arranged opposite to the first heat sink group, and the other two of the ventilation channels are arranged opposite to the second heat sink group, and the second heat sink driving members correspond to the ventilation channels one by one; And / or, the third heat sink includes a plurality of heat sinks arranged at intervals, and the plurality of heat sinks are all connected to the heat sink bracket, and the radiator also includes a third heat sink driver and two fourth heat sink drivers, the third heat sink driver is arranged on the side of the third heat sink away from the heat sink bracket, the air inlet surface of the third heat sink driver is arranged opposite to the air inlet, the two fourth heat sink drivers are arranged on both sides of the heat sink, and the air outlet surface of the fourth heat sink driver is arranged opposite to the air outlet.

8. The lamp body according to claim 1, characterized in that: The first shell includes a shell bracket, an outer shell and an upper shell, the shell bracket is connected to the outer shell, the upper shell is connected to the shell bracket and one end of the outer shell to jointly enclose and form the first cavity, the radiator is connected to one end of the shell bracket away from the upper shell, and the first heat sink and the second heat sink are both connected to the shell bracket.

9. The lamp body according to claim 8, characterized in that: The lamp body further comprises a first seal, a second seal and a third seal, wherein the first seal is arranged between the shell support and the outer shell, the second seal is arranged between the shell support and the upper shell, and the third seal is arranged between the shell support and the radiator.

10. A lamp, characterized in that: The lamp body comprises the lamp body according to any one of claims 1 to 9.

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