CN219014244U - Light emitting device - Google Patents

Abstract

The application provides a light emitting device comprising: a housing; the control module is arranged inside the shell; the light-emitting module is arranged in the shell and is electrically connected with the control module; the battery is arranged on the shell and is electrically connected with the control module; the heat dissipation module is arranged on the shell and at least partially faces the battery, and is used for dissipating heat of the light-emitting module, the control module and the battery, and the shell covers part of the heat dissipation module. The luminous equipment provided by the application has the advantages that the radiating efficiency of each part in the luminous equipment is high, and the luminous equipment can adapt to high-power operation.

Description

Light emitting device

Technical Field

The application belongs to the technical field of photographic equipment, and more particularly relates to a light-emitting device.

Background

Some scenes require high power self-powered photography lights, such as light-supplementing lights, as the photography work progresses. In order to facilitate carrying and light supplementing operation in a narrow space, the volume of some light supplementing lamps is made as small as possible; meanwhile, in order to meet the requirement of the shooting process on the light supplementing brightness, the power requirement of the light-emitting module is larger.

In order to meet the above requirements, in the related art light supplementing lamp, a light emitting module and a power module are hermetically disposed inside a housing, and heat dissipation fins (i.e., the foregoing heat dissipation modules) are directly disposed outside the light emitting module and the power module as housing structural members, so that the light emitting module and the power module dissipate heat by transferring heat generated by themselves to the heat dissipation fins on the housing.

However, in the light supplementing lamp, the housing is closed, so that no convection air flow exists in the housing, the heat flow rate in the housing is limited, and the heat dissipation rate is low, so that the power of the light emitting module is limited, and the safety of the battery is also affected.

Disclosure of Invention

An object of the embodiment of the present application is to provide a light emitting device, so as to solve a technical problem that internal heat dissipation of the light emitting device in the prior art is slow.

In order to achieve the above object, a technical solution adopted in an embodiment of the present application is to provide a light emitting device, which includes:

a housing;

the control module is arranged inside the shell;

the light-emitting module is arranged in the shell and is electrically connected with the control module;

the battery is arranged on the shell and is electrically connected with the control module;

the heat dissipation module is arranged on the shell and at least partially faces the battery, and is used for dissipating heat of the light-emitting module, the control module and the battery, and the shell covers part of the heat dissipation module.

Optionally, the control module is disposed opposite to the light emitting module; or the control module and the light-emitting module are arranged in the same extending direction; or, the control module is arranged at one side of the light emitting module. Therefore, the space inside the shell is more compact, and the heat dissipation efficiency of the heat dissipation module can be improved.

Optionally, the housing includes a first accommodating portion and a second accommodating portion that are each disposed opposite in the same direction; the first accommodating part is used for accommodating the light emitting module, and the second accommodating part is used for accommodating the control module; and part of the heat dissipation module is arranged between the first accommodating part and the second accommodating part. Therefore, the heat dissipation efficiency of the heat dissipation module is higher.

Optionally, the first accommodating part and the second accommodating part are opposite in the same direction and are arranged at intervals, and the opening at one side of the first accommodating part and the second accommodating part, which are opposite, is arranged, and the heat dissipation module is simultaneously arranged in the opening of the first accommodating part and the second accommodating part, which are opposite; and a hollowed-out area communicated with the outside is formed between the first accommodating part and the second accommodating part, and part of the heat dissipation module is positioned in the hollowed-out area. Thus, the heat dissipation efficiency of the heat dissipation module can be further improved.

Optionally, the length of the second accommodating part is smaller than the length of the first accommodating part, and the length of the heat dissipation module is larger than the length of the second accommodating part and smaller than the length of the first accommodating part; the battery is arranged on one side of the second accommodating part. Therefore, the heat dissipation module can fully dissipate heat of the light-emitting module, and meanwhile, assembly of parts in the light-emitting device is convenient.

Optionally, the first accommodation portion with the second accommodation portion integrated into one piece sets up the first accommodation portion is kept away from one side shaping of second accommodation portion has the battery support, the battery erect in the second accommodation portion with between the battery support. Therefore, the overall structural strength of the shell can be enhanced, and the structure among parts on the light-emitting equipment is more compact.

Optionally, the second accommodating part is opposite to the opening on one side of the battery bracket, and the opening on the second accommodating part opposite to the battery bracket is communicated with the opening opposite to the first accommodating part. Therefore, the assembly of the light-emitting module, the control module, the heat dissipation module and the battery can be facilitated.

Optionally, the heat dissipation module includes at least one heat dissipation fin and at least one heat dissipation fan; and the radiating fins are internally provided with mounting positions, and the radiating fans are embedded in the mounting positions. Therefore, the occupation of the heat dissipation module to the shell space can be reduced, and the heat dissipation efficiency of the heat dissipation module can be improved.

Optionally, the heat dissipation fins include a first heat dissipation fin and a second heat dissipation fin stacked on each other, the first heat dissipation fin is abutted with the light emitting module, and the second heat dissipation fin is abutted with the control module; the heat radiation fan is arranged on the first heat radiation fins. Therefore, the heat dissipation efficiency of the heat dissipation module to the light-emitting module can be further improved.

Optionally, the heat dissipation fan is provided with a plurality of heat dissipation fins along the length direction of the first heat dissipation fins; part of the radiating fans are opposite to the second radiating fins, and part of the radiating fans are opposite to the battery. Therefore, the heat dissipation efficiency of the heat dissipation module to the control module and the battery can be effectively improved.

The light-emitting device provided by the embodiment of the application has at least the following beneficial effects:

the heat radiation module is arranged on the shell and at least partially faces the battery, so that the light-emitting device is compact in structure, and the heat radiation module can sufficiently radiate the light-emitting module, the control module and the battery at the same time; in addition, the shell only sets up partial heat dissipation module shroud for partial heat dissipation module exposes the setting, so, the heat dissipation module can be direct with the outside air direct contact of lighting apparatus, also can make outside air current can flow in the part that the heat dissipation module was covered by the shell to can accelerate the heat dissipation rate of lighting module, control module and battery.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are required for the embodiments or the description of the prior art will be briefly described below, it being obvious that the drawings in the following description are only some embodiments of the present application, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a perspective view of a light emitting device in some embodiments of the present application;

FIG. 2 is a front view of a light emitting device in some embodiments of the present application;

FIG. 3 is an exploded view of a light emitting device in some embodiments of the present application;

FIG. 4 is a cross-sectional view of a light emitting device in some embodiments of the present application;

FIG. 5 is a perspective view of a housing in some embodiments of the present application;

fig. 6 is a front view of a housing in some embodiments of the present application.

Wherein, each reference sign in the figure:

100. a housing;

110. a first accommodation portion; 120. a second accommodating portion; 130. a battery holder; 101. a groove;

200. a control module;

300. a light emitting module;

400. a heat dissipation module;

411. a first heat sink fin; 4111. a mounting position; 412. a second heat sink fin; 420. a heat radiation fan; 500. and a battery.

Detailed Description

In order to make the technical problems, technical schemes and beneficial effects to be solved by the present application more clear, the present application is further described in detail below with reference to the accompanying drawings and embodiments.

It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the present application.

It will be understood that when an element is referred to as being "mounted" or "disposed" on another element, it can be directly on the other element or be indirectly on the other element.

When an element is referred to as being "connected to" another element, it can be directly connected to the other element or be indirectly connected to the other element.

It is to be understood that the terms "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like indicate or are based on the orientation or positional relationship shown in the drawings, merely to facilitate description of the present application and simplify description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be configured and operated in a particular orientation, and therefore should not be construed as limiting the present application.

Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature.

In the description of the present application, the meaning of "a plurality" is two or more, unless explicitly defined otherwise.

Referring to fig. 1 to 6, a light emitting device according to an embodiment of the present application will be described.

Referring to fig. 1 to 4, the light emitting apparatus described herein includes at least a housing 100, a control module 200, a light emitting module 300, a heat dissipating module 400, and a battery 500.

Specifically, the control module 200 and the light emitting module 300 are both disposed inside the housing 100. The two may be disposed opposite or adjacent to each other, and in particular, but not limited to, the two may be disposed opposite to each other. Meanwhile, the control module 200 is electrically connected to the light emitting module 300, and the control module 200 is used for controlling the light emitting power, the color temperature, and the like of the light emitting module 300.

Further, the control module 200 may include a control panel, which is disposed on the housing 100 and is used for displaying parameters such as brightness, color temperature, and electric quantity of the battery 500, and in a specific application, a structural member such as a switch button may be disposed on the control panel.

The heat dissipation module 400 may be a heat dissipation fin, a heat dissipation fan, or a combination thereof. The heat dissipation module 400 is disposed inside the housing 100 and is close to or abutted against the control module 200 and the light emitting module 300, so that heat generated by the light emitting module 300 and the control module 200 can be efficiently transferred to the heat dissipation module 400, and the heat dissipation module 400 dissipates heat.

Further, the heat dissipation module 400 is disposed at least partially opposite to the battery 500, for example, the heat dissipation module 400 may be disposed completely opposite to the battery 500, or may be disposed partially opposite to the battery 500, specifically, may be disposed specifically according to the output power and the battery capacity of the battery 500, and is not limited herein. Meanwhile, the heat dissipation module 400 and the battery 500 may abut against each other, and a small distance gap may be maintained. In this way, if the light emitting module 300 emits light with high power, the heat generated by the battery 500 can be timely transferred to the heat dissipating module 400, so that the temperature of the battery 500 can be kept within a safe range, and the stability of power supply of the battery 500 can be improved.

Further, the housing 100 covers only a portion of the heat dissipating module 400. In this way, part of the heat dissipation module 400 can be directly exposed, so that external cold air can be more fully contacted with the heat dissipation module 400, so that heat on the heat dissipation module 400 can be more quickly dissipated, and heat accumulation on the heat dissipation module 400 is reduced, so that the heat dissipation efficiency of the heat dissipation module 400 to the light emitting module 300, the control module 200 and the battery 500 is improved.

Specifically, the case 100 may be a sealed arrangement, that is, the light emitting module 300, the control module 200, and the battery 500 are all disposed inside the case 100, and the heat dissipating module 400 is disposed to extend from inside the case 100 to outside the case 100; alternatively, the housing 100 may be partially semi-closed and partially hollow, where the light emitting module 300, the control module 200 and the battery 500 are all disposed at the semi-closed structure of the housing 100, and the heat dissipating module 400 is disposed at the hollow structure.

To sum up, the light emitting device of the present application, through setting the heat dissipating module 400 in the housing and partially exposing the heat dissipating module 400 outside the housing 100, can effectively improve the heat dissipating efficiency of the heat dissipating module 400, so that the heat dissipating performance can be kept better under the condition that the setting structures of the light emitting module 300, the control module 200 and the battery 500 are more compact.

Further, in the present application, there may be various embodiments of the location of the control module 200, the light emitting module 300, and the heat dissipating module 400 inside the housing 100.

In some embodiments, the control module 200 and the light emitting module 300 are disposed opposite to and spaced apart from each other inside the case 100, and in such embodiments, the heat dissipation module 400 is disposed between the control module 200 and the light emitting module 300 to dissipate heat from both at the same time, while the heat dissipation module 400 is partially disposed opposite to the battery 500.

In other embodiments, the control module 200 and the light emitting module 300 are arranged in the same extension direction, and the same side of the heat dissipation module 400 is abutted against both the control module 200 and the light emitting module 300, and in this embodiment, the heat dissipation module 400 may be disposed entirely opposite to the battery 500.

In still other embodiments, the control module 200 is disposed on one side of the light emitting module 300, and different sides of the heat dissipation module 400 respectively abut against the control module 200 and the light emitting module 300 to achieve heat dissipation.

Specifically, referring to fig. 1 to 4, in some embodiments of the present application, the control module 200 and the light emitting module 300 are disposed opposite to and spaced apart from each other inside the case 100, and simultaneously, the heat dissipation module 400 is disposed between the control module 200 and the light emitting module 300, and opposite side surfaces of the heat dissipation module 400 are respectively brought into close proximity to or abutted against the back surface of the light emitting module 300 and the bottom surface of the control module 200.

This is the case: on the one hand, the heat generated by the light emitting module 300 and the control module 200 can be efficiently transferred to the heat dissipating module 400, and the heat dissipating module 400 dissipates the heat; on the other hand, the space inside the shell 100 can be more compact, which is beneficial to reducing the volume of the shell 100; on the other hand, it is also possible to prevent heat from being directly transferred to the control module 200 when the light emitting module 300 emits light with high power, thereby causing the control module 200 to malfunction due to high temperature.

Further, referring to fig. 1 to 5, in some embodiments of the present application, the housing 100 includes a first receiving portion 110 and a second receiving portion 120, which are disposed opposite each other in the same direction; the first receiving part 110 is used for receiving the light emitting module 300, the second receiving part 120 is used for receiving the control module 200, an assembly space for disposing the heat dissipation module 400 is formed between the first receiving part 110 and the second receiving part 120, and the heat dissipation module 400 is partially disposed between the first receiving part 110 and the second receiving part 120 and partially extends to the outside of the case 100.

It should be understood that, in this embodiment, the battery 500 may be disposed on one side of the control module 200 in the second accommodating portion 120, or may be disposed on one side outside the second accommodating portion 120 and opposite to the heat dissipation module 400, which is only required to satisfy that the battery 500 is disposed on the opposite side of the light emitting module 300, but is not limited thereto.

In a further embodiment, referring to fig. 5, the first receiving portion 110 and the second receiving portion 120 are disposed opposite to each other in the same direction and spaced apart from each other, and both sides of the first receiving portion 110 and the second receiving portion 120, which are opposite to each other, are open, and the heat dissipation module 400 is disposed in the respective openings of the first receiving portion 110 and the second receiving portion 120, which are opposite to each other.

That is, the first accommodating portion 110 is provided with a first opening, the second accommodating portion 120 is provided with a second opening, and the first opening and the second opening are opposite. When the heat dissipation module 400 is simultaneously arranged in the first opening and the second opening, two opposite side surfaces of the heat dissipation module 400 can be simultaneously abutted with the light-emitting module 300 and the control module 200 respectively, so that heat on the light-emitting module 300 and the control module 200 can be directly transferred to the heat dissipation module 400, and the heat transfer efficiency is higher, thereby being beneficial to improving the heat dissipation efficiency of the heat dissipation module 400.

Further, referring to fig. 5 and 6, a hollowed-out area communicating with the outside is formed between the first receiving portion 110 and the second receiving portion 120, and a part of the heat dissipation module 400 is located in the hollowed-out area.

Since the heat quantity of the portion of the heat dissipation module 400, which is simultaneously abutted against the control module 200 and the light emitting module 300, is greatest, by forming the hollowed-out area between the first accommodating portion 110 and the second accommodating portion 120, the portion of the heat dissipation module 400, which is simultaneously abutted against the light emitting module 300 and the control module 200, i.e. the portion of the hollowed-out area, can increase the contact surface between the heat dissipation module 400 and the external air, thereby being beneficial to improving the heat dissipation efficiency of the heat dissipation module 400.

Specifically, the hollow area between the first accommodating portion 110 and the second accommodating portion 120 is an air flow channel, when the heat dissipating module 400 is located in the hollow area, the convective air flow located at two sides of the housing 100 can rapidly take away the heat in the area with the largest heat on the heat dissipating module 400, so as to improve the heat dissipating efficiency of the heat dissipating module 400.

It will be appreciated that referring to fig. 5 and 6, in some embodiments, the length of the second receiving part 120 is smaller than the length of the first receiving part 110, and the length of the heat dissipating module 400 is greater than the length of the second receiving part 120 and smaller than the length of the first receiving part 110.

In this embodiment, one side of the heat dissipation module 400 completely covers the first opening, and the other side completely covers the second opening. It should be understood that, since the first accommodating portion 110 and the second accommodating portion 120 are disposed with openings on one side of the forward pair, and the length of the second accommodating portion 120 is smaller than that of the first accommodating portion 110, that is, the length of the first opening is greater than that of the second opening, the portion of the heat dissipation module 400, which covers the area of the first opening that is offset from the second opening, that is, the portion exposed to the housing 100.

It can be appreciated that, due to the longer length of the light emitting module 300, the heat dissipation module 400 is configured to sufficiently dissipate heat of the light emitting module 300 to meet the light emitting power requirement of the light emitting module 300; meanwhile, assembly of each component in the light emitting device is also convenient, and after the light emitting module 300 and the control module 200 are assembled in the first accommodating portion 110 and the second accommodating portion 120 in sequence, the heat dissipation module 400 is inserted into the hollow area on the housing 100, so that assembly can be realized.

Further, also in this embodiment, referring to fig. 1, 2 and 4, the battery 500 is disposed on the side of the second receiving part 120 and faces the heat dissipation module 400. In this way, the battery 500 is disposed outside the housing 100 and faces the heat dissipation module 400, and the heat generated by the battery 500 can be directly dissipated into the air or transferred to the heat dissipation module 400, so that the heat dissipation of the battery 500 can be accelerated.

Further, on the basis of the foregoing embodiments, referring to fig. 5 and 6, the first receiving portion 110 and the second receiving portion 120 are integrally formed. Specifically, grooves 101 are formed on two opposite sides of the width direction of the housing 100, the grooves 101 divide two sides of the housing 100 in the height direction into a first accommodating portion 110 and a second accommodating portion 120, and at this time, the space communicated by the grooves 101 on two sides of the housing 100 is the hollow area.

Meanwhile, a battery 500 bracket is formed at a side of the first receiving part 110 remote from the second receiving part 120. It will be appreciated that the battery 500 bracket may be integrally formed with the housing 100 or may be removably attached. The battery 500 is installed between the second receiving part 120 and the battery 500 holder.

Through so setting up casing 100, on the one hand, can enough strengthen the wholeness of casing 100, make its structural strength effectively improve, on the other hand also makes the compact structure between each spare part on the lighting apparatus, thereby small portable.

Further, referring to fig. 5, in addition to the foregoing embodiment, the second receiving part 120 is disposed opposite to the opening at one side of the battery 500 bracket, that is, the third opening; and, the opening of the second receiving part 120 facing the holder of the battery 500 communicates with the opening facing the first receiving part 110, that is, the second opening of the second receiving part 120 communicates with the third opening.

In this way, the assembly of the light emitting module 300, the control module 200, the heat dissipating module 400, and the battery 500 can be facilitated.

Specifically, when assembling the heat dissipation module 400, the control module 200 and the battery 500, the control module 200 is placed in the second accommodating portion 120 along the length direction of the light emitting device from the third opening, the light emitting module 300 is placed in the first accommodating portion 110 along the first opening, the heat dissipation module 400 is inserted into the hollowed-out area along the groove 101 on the housing 100 and is abutted against the light emitting module 300 and the heat dissipation module 400, and finally the battery 500 is erected between the battery 500 bracket and the second accommodating portion 120, so that the assembly of the light emitting device can be completed.

As can be appreciated, referring to fig. 3 and 4, in some embodiments of the present application, a heat dissipating module 400 includes at least one heat dissipating fin and at least one heat dissipating fan 420.

It is understood that the cooling fan 420 may be disposed on the housing 100 to blow and dissipate heat from the cooling fins, or may be directly disposed on the cooling fins to suck and discharge heat from the cooling fins to the outside air.

By arranging the heat radiation fins and the heat radiation fan 420, the heat radiation fan 420 is used for accelerating the air convection speed around the heat radiation fins, thereby accelerating the heat radiation efficiency of the heat radiation fins; in the arrangement where the heat dissipation module 400 is partially facing the battery 500, heat dissipation from the battery 500 can be accelerated.

Further, referring to fig. 3, in some embodiments of the present application, a mounting location 4111 is formed in the heat dissipation fin, and the heat dissipation fan 420 is embedded in the mounting location 4111. By the arrangement, the space occupation of the heat dissipation module 400 to the shell 100 can be reduced, so that the volume of the light emitting device can be further reduced, and the structure of the light emitting device is more compact.

It can be appreciated that the mounting locations 4111 may be disposed in the heat dissipation fins at intervals along the length direction of the heat dissipation fins, so that heat in each region of the light emitting module 300 and each region of the control module 200 can be dissipated in time.

Referring to fig. 3 and 4, in the embodiment in which the control module 200 and the light emitting module 300 are opposite to each other and are disposed at intervals inside the housing 100, the heat dissipation fins include a first heat dissipation fin 411 and a second heat dissipation fin 412 that are stacked on each other, the first heat dissipation fin 411 is abutted to the light emitting module 300, and the second heat dissipation fin 412 is abutted to the control module 200; the heat dissipation fan 420 is disposed on the first heat dissipation fins 411.

It can be understood that, since the heating value of the light emitting module 300 is larger than that of the control module 200, correspondingly, the volume of the first heat dissipating fin 411 is larger than that of the second heat dissipating fin 412; as can be seen from the foregoing, since the length of the light emitting module 300 is greater than the length of the control module 200, i.e. the length of the first heat sink fins 411 is greater than the length of the second heat sink fins 412. Therefore, the first heat dissipation fins 411 can accommodate a larger number of heat dissipation fans 420 than the second heat dissipation fins 412, so as to ensure higher heat dissipation efficiency.

It is understood that, in the application, the mounting locations 4111 are disposed on the first heat sink fins 411, and the heat dissipation fan 420 is disposed in each of the mounting locations 4111 of the first heat sink fins 411.

As can be appreciated, referring to fig. 3 and 4, the heat radiation fan 420 is provided in plurality in the first heat radiation fins 411 along the length direction of the first heat radiation fins 411; meanwhile, a part of the heat radiation fan 420 faces the second heat radiation fins 412, and a part of the heat radiation fan 420 faces the battery 500.

As can be seen from the foregoing, the portions of the two sides of the heat dissipation module 400, which are respectively abutted against the light emitting module 300 and the control module 200, are located in the hollow area on the housing 100, and therefore, the heat dissipation fan 420 disposed opposite to the second heat dissipation fins 412 is also located in the hollow area. In this way, the heat dissipation fan 420 blows the heat in the first heat dissipation fins 411 to the second heat dissipation fins 412 after sucking, and the air flow can further take away the heat of the second heat dissipation fins 412 and timely discharge the heat dissipation module 400 from the groove 101 on the housing 100 after striking the surface of the second heat dissipation fins 412, thereby improving the heat dissipation efficiency of the heat dissipation module 400 to the control module 200.

In addition, since the part of the first heat dissipation fins 411 facing the battery 500 is exposed outside the housing 100, the heat dissipation fan 420 is also disposed on the part of the first heat dissipation fins 411, so that the heat dissipation fan 420 can suck the heat on the first heat dissipation fins 411 to the outside of the housing 100 and simultaneously accelerate the airflow around the battery 500, thereby enabling the flowing airflow to rapidly take away the heat on the surface of the battery 500, and enabling the heat dissipation fan 420 disposed at the position to simultaneously perform heat dissipation operation on the light emitting module 300 and the battery 500.

The foregoing description of the preferred embodiments of the present application is not intended to be limiting, but is intended to cover any and all modifications, equivalents, and alternatives falling within the spirit and principles of the present application.

Claims (10)

1. A light emitting device, comprising:

a housing;

the control module is arranged inside the shell;

the light-emitting module is arranged in the shell and is electrically connected with the control module;

the battery is arranged on the shell and is electrically connected with the control module;

the heat dissipation module is arranged on the shell and at least partially faces the battery, and is used for dissipating heat of the light-emitting module, the control module and the battery, and the shell covers part of the heat dissipation module.

2. A light emitting device as claimed in claim 1, characterized in that: the control module is arranged opposite to the light-emitting module; or the control module and the light-emitting module are arranged in the same extending direction; or, the control module is arranged at one side of the light emitting module.

3. A light emitting device as claimed in claim 2, characterized in that: the shell comprises a first accommodating part and a second accommodating part which are oppositely arranged in the same direction; the first accommodating part is used for accommodating the light emitting module, and the second accommodating part is used for accommodating the control module; and part of the heat dissipation module is arranged between the first accommodating part and the second accommodating part.

4. A light emitting device as claimed in claim 3, characterized in that: the first accommodating part and the second accommodating part are opposite in the same direction and are arranged at intervals, one side of the first accommodating part and the second accommodating part, which are opposite, is provided with an opening, and the heat dissipation module is simultaneously arranged in the opening, which is opposite, on the first accommodating part and the second accommodating part; and a hollowed-out area communicated with the outside is formed between the first accommodating part and the second accommodating part, and part of the heat dissipation module is positioned in the hollowed-out area.

5. A light emitting device as claimed in claim 3 or 4, characterized in that: the length of the second accommodating part is smaller than that of the first accommodating part, and the length of the heat dissipation module is larger than that of the second accommodating part and smaller than that of the first accommodating part; the battery is arranged on one side of the second accommodating part.

6. A light emitting device as recited in claim 5, wherein: the first accommodation portion with second accommodation portion integrated into one piece sets up first accommodation portion is kept away from one side shaping of second accommodation portion has the battery support, the battery erect in the second accommodation portion with between the battery support.

7. A light emitting device as recited in claim 6, wherein: the second accommodating part is arranged opposite to the opening at one side of the battery bracket, and the opening opposite to the battery bracket on the second accommodating part is communicated with the opening opposite to the first accommodating part.

8. A light emitting device as claimed in claim 1, characterized in that: the heat dissipation module comprises at least one heat dissipation fin and at least one heat dissipation fan; and the radiating fins are internally provided with mounting positions, and the radiating fans are embedded in the mounting positions.

9. A light emitting device as recited in claim 8, wherein: the radiating fins comprise a first radiating fin and a second radiating fin which are mutually overlapped, the first radiating fin is abutted with the light-emitting module, and the second radiating fin is abutted with the control module; the heat radiation fan is arranged on the first heat radiation fins.

10. A light emitting device as recited in claim 9, wherein: the radiating fans are arranged in the first radiating fins along the length direction of the first radiating fins; part of the radiating fans are opposite to the second radiating fins, and part of the radiating fans are opposite to the battery.

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