Lighting device

Abstract

According to the lighting device, at least part of a heat dissipation assembly is arranged in a first containing space of a shell, an air inlet allowing airflow to enter the first containing space and an air outlet allowing the airflow to flow out of the first containing space through an airflow channel are formed in the shell, and the airflow channel is arranged in the vertical direction; at least part of the air outlet is arranged above the airflow channel, and air with high temperature rises, so that the air with high temperature can be discharged from the air outlet above the airflow channel, negative pressure is formed in the first accommodating space, and cold air is sucked from the air inlet for supplementation, so that circulating ventilation in the first accommodating space is realized, and the heat dissipation effect is achieved; and the heat dissipation efficiency is high.

Description

Technical Field

[0001] The present application relates to the technical field of work lamps and tool equipment, and in particular to a lighting device. Background Art

[0002] Lighting devices, especially work lights, are used to provide lighting for work areas that are difficult to illuminate. Due to the rapid development of technology, the brightness requirements of lighting devices in various fields are getting higher and higher. While the brightness is improved, users do not want the battery life to be shortened, so the requirements for the battery life of the power supply are getting higher and higher. High-power lighting devices will generate a lot of heat when working, and the generated heat needs to be released in time, so there is a greater demand for heat dissipation mechanisms for high-power lighting devices to avoid affecting the normal operation of the lighting devices. Summary of the invention

[0003] One object of the present application is to solve or at least alleviate part or all of the above problems. To this end, one object of the present application is to provide a lighting device that can release the heat generated by the lighting device in time during operation, ensuring that the lighting device works normally without affecting the overall use of the lighting device.

[0004] In order to achieve the above objectives, this application adopts the following technical solutions:

[0005] In one aspect, a lighting device is provided, comprising:

[0006] A housing having a first accommodation space;

[0007] A panel assembly includes a light emitting body, and the panel assembly is supported by a housing;

[0008] A DC power supply is used to supply power to the light-emitting body. A power supply combination portion is provided on the housing, and the DC power supply is arranged on the power supply combination portion.

[0009] A heat dissipation component is at least partially disposed in the first accommodation space, and the heat dissipation component includes an air flow channel disposed in an up-down direction for air flow;

[0010] The shell is provided with an air inlet for airflow entering the first accommodating space and an air outlet for airflow flowing out of the first accommodating space through the airflow channel, and the air outlet is at least partially arranged above the airflow channel.

[0011] As an optional technical solution for the above-mentioned lighting device, the heat dissipation assembly includes a heat dissipation substrate, one side of the heat dissipation substrate is bonded to the panel assembly, and the other side of the heat dissipation substrate is provided with a plurality of heat dissipation fins extending in the up and down directions, and an air flow channel is formed between two adjacent heat dissipation fins.

[0012] As an optional technical solution of the above-mentioned lighting device, at least part of the heat sink is made of thermally conductive plastic.

[0013] As an optional technical solution of the above-mentioned lighting device, the heat sink is made of thermally conductive plastic, and a metal sheet is attached to or embedded in the heat sink.

[0014] As an optional technical solution of the above-mentioned lighting device, the thermal conductivity of the thermally conductive plastic is greater than or equal to 0.5 W / (m*K) and less than or equal to 20 W / (m*K).

[0015] As an optional technical solution of the above-mentioned lighting device, the lighting device also includes a lampshade, which is arranged on the outside of the panel assembly and is waterproof and sealed to the heat dissipation substrate.

[0016] As an optional technical solution of the above-mentioned lighting device, the air outlet is arranged at the upper part of the shell along the up-down direction.

[0017] As an optional technical solution of the above-mentioned lighting device, the air inlet is arranged on at least one side of the shell along the left-right direction, and the air inlet is arranged lower than the air outlet.

[0018] As an optional technical solution of the above-mentioned lighting device, a DC power supply is arranged on the rear side of the panel assembly along the front-to-back direction of the shell.

[0019] As an optional technical solution of the above-mentioned lighting device, the nominal voltage of the DC power supply is greater than or equal to 36V and less than or equal to 80V.

[0020] In another aspect, a lighting device is provided, comprising:

[0021] A housing having a first accommodation space;

[0022] A panel assembly includes a light emitting body, and the panel assembly is supported by a housing;

[0023] A DC power supply is used to supply power to the light-emitting body. A power supply combination portion is provided on the housing, and the DC power supply is arranged on the power supply combination portion.

[0024] The heat dissipation component is at least partially arranged in the first accommodating space. The heat dissipation component includes a plurality of heat sinks extending in the up and down directions. The heat sinks are at least partially made of thermally conductive plastic. The thermal conductivity of the thermally conductive plastic is greater than or equal to 0.5W / (m*K) and less than or equal to 20W / (m*K).

[0025] In another aspect, a lighting device is provided, comprising:

[0026] A housing having a first accommodation space;

[0027] A panel assembly includes a light emitting body, and the panel assembly is supported by a housing;

[0028] A DC power supply is used to supply power to the light-emitting body. A power supply combination portion is provided on the housing, and the DC power supply is arranged on the power supply combination portion.

[0029] A heat dissipation assembly is at least partially disposed in the first accommodation space, the heat dissipation assembly includes a plurality of heat dissipation fins extending in the up-down direction, and an air flow channel for air flow is formed between two adjacent heat dissipation fins;

[0030] The shell is provided with an air outlet for allowing air to flow out of the first accommodating space through the air flow channel, and the air outlet is at least partially arranged above the air flow channel.

[0031] The benefits of this application are:

[0032] In the lighting device provided by the present application, at least part of the heat dissipation assembly is arranged in the first accommodation space of the shell, and the shell is provided with an air inlet for airflow to enter the first accommodation space and an air outlet for airflow to flow out of the first accommodation space through the airflow channel. The airflow channel is arranged in the up and down direction, and at least part of the air outlet is arranged above the airflow channel. The air with high temperature rises, and the air with increased temperature can be discharged from the air outlet above the airflow channel. Negative pressure is formed in the first accommodation space, and cold air is sucked in from the air inlet for replenishment, thereby realizing circulation ventilation in the first accommodation space, achieving the effect of heat dissipation, and the heat dissipation efficiency is high. At the same time, the use of thermally conductive plastics not only improves the heat dissipation capacity and heat dissipation efficiency, but also reduces the overall mass. Due to the low material cost of thermally conductive plastics, the product cost is reduced to a certain extent.

[0033] The lighting device provided in the present application forms an air flow channel for air circulation between two adjacent heat sinks, and an air outlet is provided on the shell to allow the air flow to flow out of the first accommodation space through the air flow channel. The air outlet is at least partially arranged above the air flow channel, and the air with high temperature rises and is discharged from the air outlet above the air flow channel, thereby improving the heat dissipation efficiency, and the structure of forming the air flow channel is simple and easy to implement. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] Figure 1 is an axonometric view of the lighting device provided by the present application;

[0035] Figure 2 is an exploded view of the lighting device provided by the present application;

[0036] Figure 3 is a cross-sectional view of the lighting device provided by the present application;

[0037] Figure 4 It is a schematic diagram of the structure of the heat dissipation assembly provided by the present application;

[0038] Figure 5 It is a schematic diagram of the structure of the connection between the heat dissipation component and the panel component provided by the present application;

[0039] Figure 6is a side view of the support portion provided by the present application in a storage position;

[0040] Figure 7 is a bottom view of the support portion provided by the present application in the storage position;

[0041] Figure 8 is a side view of the support portion provided by the present application in an extended position;

[0042] Fig. 9 is a bottom view of the support portion provided by the present application in an extended position;

[0043] Fig.10 is a front view of the lighting device provided by the present application;

[0044] Fig.11 is a top view of the lighting device provided by the present application;

[0045] Fig.12 It is a schematic diagram of the handle assembly and power supply combination provided in the present application supported on a work surface.

[0046] In the figure:

[0047] 1. Shell; 2. Panel assembly; 3. DC power supply; 4. Power supply combination; 5. Heat dissipation assembly; 6. Lamp cover; 7. Support assembly; 8. Handle assembly;

[0048] 11. air inlet; 12. air outlet; 13. first surface; 14. first accommodation space;

[0049] 21. Luminous body;

[0050] 51. air flow channel; 52. heat dissipation substrate; 53. heat sink; 54. thermal pad;

[0051] 71, support part; 72, locking mechanism; 721, limit part; 7211, buckle; 7212, button; 722, receiving part;

[0052] 81. The first in command; 82. The second in command; 83. The third in command. DETAILED DESCRIPTION

[0053] Before any embodiments of the application are explained in detail, it is to be understood that the application is not limited in its application to the details of construction and the arrangement of components set forth in the following description or illustrated in the above drawings.

[0054] In this application, the terms "comprises", "includes", "has" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device that includes a series of elements includes not only those elements, but also includes other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of more restrictions, an element defined by the sentence "comprises a ..." does not exclude the presence of other identical elements in the process, method, article or device that includes the element.

[0055] In this application, the term "and / or" is a description of the association relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A exists alone, A and B exist at the same time, and B exists alone. In addition, the character " / " in this application generally indicates that the related objects before and after are in an "and / or" relationship.

[0056] In the present application, the terms "connect", "combine", "couple", and "install" may refer to direct connection, combination, coupling, or installation, or indirect connection, combination, coupling, or installation. For example, direct connection refers to two parts or components being connected together without the need for an intermediate piece, and indirect connection refers to two parts or components being connected to at least one intermediate piece respectively, and the two parts or components being connected via the intermediate piece. In addition, "connect" and "couple" are not limited to physical or mechanical connections or couplings, and may include electrical connections or couplings.

[0057] In the present application, it will be understood by those of ordinary skill in the art that relative terms (e.g., "about," "approximately," "substantially," etc.) used in conjunction with quantities or conditions include the values ​​and have the meaning indicated by the context. For example, the relative terms include at least the degree of error associated with the measurement of a specific value, the tolerances caused by manufacturing, assembly, and use associated with a specific value, and the like. Such terms should also be considered to disclose a range defined by the absolute values ​​of the two endpoints. Relative terms may refer to plus or minus a certain percentage (e.g., 1%, 5%, 10% or more) of the indicated value. Numerical values ​​that do not use relative terms should also be disclosed as specific values ​​with tolerances. In addition, "substantially" may refer to plus or minus a certain degree (e.g., 1 degree, 5 degrees, 10 degrees or more) on the basis of the indicated angle when expressing a relative angular position relationship (e.g., substantially parallel, substantially perpendicular).

[0058] In this application, it will be understood by those skilled in the art that the function performed by a component can be performed by one component, multiple components, one part, or multiple parts. Similarly, the function performed by a part can also be performed by one part, one component, or a combination of multiple parts.

[0059] In the present application, the terms "upper", "lower", "left", "right", "front", "back" and other directional words are described based on the orientation and positional relationship shown in the accompanying drawings, and should not be understood as limiting the embodiments of the present application. In addition, in the context, it is also necessary to understand that when it is mentioned that an element is connected to another element "upper" or "lower", it can not only be directly connected to another element "upper" or "lower", but also indirectly connected to another element "upper" or "lower" through an intermediate element. It should also be understood that directional words such as upper side, lower side, left side, right side, front side, back side, etc. not only represent the positive orientation, but can also be understood as the lateral orientation. For example, the bottom can include directly below, lower left, lower right, lower front, and lower back, etc.

[0060] Figure 1 is a schematic diagram of the overall structure of the lighting device provided in this application, Figure 2 is an exploded view of the lighting device provided in this application, Figure 3 is a cross-sectional view of the lighting device provided in this application. Figure 1 , Figure 2 and Figure 3 As shown, the present application provides a lighting device, which includes a housing 1, a panel assembly 2, a DC power supply 3 and a heat dissipation assembly 5.

[0061] The housing 1 has a first accommodating space 14, and the panel assembly 2 is supported by the housing 1. The panel assembly 2 is mounted on the housing 1, and includes a light emitter 21, which is arranged toward the outside of the first accommodating space 14, and a lampshade 6 is provided on the outside of the panel assembly 2. The lampshade 6 is a light-transmitting cover, and the light emitted by the light emitter 21 can be transmitted through the lampshade 6. In some embodiments, the lampshade 6 is a transparent material. In some embodiments, the lampshade 6 is an opaque but light-transmitting structure, so that the brightness and color rendering of the light emitted by the lighting device are more in line with the comfort of the human eye.

[0062] The lighting device includes a power supply. In the present embodiment, the power supply is a DC power supply 3. The DC power supply 3 is used to provide electrical energy to the lighting device. In an optional embodiment, the DC power supply 3 is a battery pack, and the battery pack cooperates with a corresponding power supply circuit to power the lighting device. It should be understood by those skilled in the art that the power supply is not limited to the scenario of using a DC power supply, and can also be powered by AC power, AC power, and corresponding rectification, filtering and voltage regulation circuits to achieve power supply to corresponding components in the machine. Among them, the DC power supply 3 supplies power to the light-emitting body 21, and a power supply combination part 4 is provided on the housing 1, and the DC power supply 3 is arranged on the power supply combination part 4. The DC power supply 3 can be detachably connected to the power supply combination part 4 to facilitate the replacement of the DC power supply 3 and extend the service life of the lighting device.

[0063] In some embodiments, along the front-to-back direction of the housing 1 , the DC power supply 3 is disposed on the rear side of the panel assembly 2 , and does not interfere with the arrangement of other components.

[0064] In this embodiment, the nominal voltage of the DC power supply 3 is greater than or equal to 36 V and less than or equal to 80 V. In some embodiments, the DC power supply 3 includes a battery pack with a rechargeable function. In some embodiments, the battery pack may be a lithium battery pack, a solid-state battery pack, or a soft-pack battery pack.

[0065] In this embodiment, the battery pack can also power other electric tools, that is, the battery pack is a universal battery pack for electric tools. The power supply combination 4 includes a connection interface and a connection locking structure of the battery pack, and the connection interface and the connection locking structure are respectively the same or universal as the connection interface and the connection locking structure of the battery pack of the electric tool. The battery pack can power a variety of different electric tools and lighting devices. The power supply circuit matched therewith is adjusted according to the control requirements of different electric tools. Such a setting eliminates the need for users to carry a variety of battery packs, chargers and adapters during engineering operations. In this embodiment, the electric tool can be a garden tool, such as a lawn mower, a hair dryer, a rear-walking electric tool such as a lawn mower, a chain saw, a cleaning machine, etc. Alternatively, the electric tool can also be a decoration tool, such as a screwdriver / drill / wrench, an electric hammer, a nail gun, a sander, etc. Alternatively, the electric tool can also be a saw tool, such as a reciprocating saw, a jigsaw, a circular saw, etc. Alternatively, the electric tool can also be other bench-type tools, such as a bench saw, a metal cutter, an electric milling machine, etc. Alternatively, the electric tool can also be a grinding tool, such as an angle grinder, a sander, etc. Alternatively, the power tool may also be other power tools, such as a fan or a work light. Or a non-road-driving walking device, such as a multi-purpose vehicle, a beach car, a UTV (farmer's car), a golf cart, an all-terrain vehicle (ATV), or an agricultural machinery vehicle, such as a harvester, a sprayer, etc. Of course, it is understandable that for a walking device, it may also be a cleaning machine. It may also be an intelligent walking power tool that uses a battery pack to drive walking and implement operating functions, such as an intelligent lawn mower. The power tool may also be a power head that uses a battery pack to power. The power head is used to adapt some output components to realize the functions of the tool.

[0066] The heat dissipation assembly 5 is at least partially disposed in the first accommodation space 14, and the heat dissipation assembly 5 includes an airflow channel 51 disposed in the up-down direction for airflow circulation. The housing 1 is provided with an air outlet 12 for airflow to flow out of the first accommodation space 14 through the airflow channel 51, and the air outlet 12 is at least partially disposed above the airflow channel 51. At least a portion of the air outlet 12 is disposed above the airflow channel 51, and the air with a high temperature rises, and the air with a high temperature can be discharged from the air outlet 12 above the airflow channel 51, thereby improving the heat dissipation efficiency.

[0067] In some embodiments, an air inlet 11 is provided on the shell 1 for air to enter the first storage space 14, the air flow channel 51 is arranged in the up and down direction, and at least a part of the air outlet 12 is arranged above the air flow channel 51. The air with high temperature rises, and the air with increased temperature can be discharged from the air outlet 12 above the air flow channel 51. Negative pressure is formed in the first storage space 14, and cold air is sucked in from the air inlet 11 for replenishment, thereby realizing circulation ventilation in the first storage space 14, achieving the effect of heat dissipation, and the heat dissipation efficiency is high.

[0068] In some embodiments, the air outlet 12 is disposed at the upper portion of the housing 1 along the up-down direction, that is, the air outlet 12 is disposed above the air flow channel 51 , and the air with a high temperature rises and is discharged through the air outlet 12 .

[0069] A panel assembly 2 is provided on the front side of the shell 1, and a DC power supply 3 is provided on the rear side of the shell 1. Therefore, an air inlet 11 is provided on at least one side of the shell 1 along the left-right direction, and the air inlet 11 is provided lower than the air outlet 12 to realize the circulation of cold air in the shell. In some embodiments, air inlets 11 are provided on opposite sides of the shell 1 to increase the air inlet area and improve the heat dissipation efficiency. No other components are installed on the two sides of the shell 1, so there will be no interference with other components, and the air inlet area of ​​the air inlet 11 can also be increased. In some other embodiments, the air inlet 11 can also be provided on the lower part of the shell 1 along the up-down direction, the front side of the shell 1, and the rear side of the shell 1, which is not specifically limited here.

[0070] In some embodiments, Figures 3 to 5 As shown, the heat dissipation assembly 5 includes a plurality of heat sinks 53 extending in the up-down direction, and an air flow channel 51 for air flow is formed between two adjacent heat sinks 53, which has a simple structure and is easy to implement. The spacing between the two heat sinks 53 can be the same. The spacing between the two heat sinks 53 can also be arranged differently according to the arrangement of the light emitters 21 of the panel assembly 2, and the density can also be set according to the arrangement of the light emitters 21 of the panel assembly 2. The above can be specifically set according to different product structures, and no specific restrictions are made.

[0071] At least part of the heat sink 53 is made of thermally conductive plastic, which is light in weight, low in cost, and has good heat dissipation effect. In some embodiments, the heat sink 53 is made of thermally conductive plastic, and a metal sheet is attached to or embedded in the heat sink 53, which further improves the heat dissipation effect of the heat sink 53, and is light in weight and low in cost compared to a heat sink 53 made entirely of metal. The metal sheet can be made of aluminum, which has good thermal conductivity and is light in weight.

[0072] The thermal conductivity of the thermally conductive plastic is greater than or equal to 0.5 W / (m*K) and less than or equal to 20 W / (m*K), and has a good heat dissipation effect. In some embodiments, the thermal conductivity of the thermally conductive plastic is greater than or equal to 1 W / (m*K) and less than or equal to 10 W / (m*K).

[0073] In some embodiments, the heat dissipation assembly 5 further includes a heat dissipation substrate 52, which is mounted on the housing 1, one side of the heat dissipation substrate 52 is in contact with the panel assembly 2, and the other side of the heat dissipation substrate 52 is provided with a plurality of heat dissipation fins 53 extending in the up-down direction and protruding from the heat dissipation substrate 52, and an air flow channel 51 is formed between two adjacent heat dissipation fins 53. The lampshade 6 is provided on the side of the heat dissipation substrate 52 where the panel assembly 2 is mounted, and the lampshade 6 and the heat dissipation substrate 52 form a space for accommodating the panel assembly 2, and the heat dissipation fins 53 are placed in the first accommodating space 14 of the housing 1, and form a heat dissipation space with the first accommodating space 14, and the heat dissipation space is independent of the space for accommodating the panel assembly 2, thereby improving the heat dissipation efficiency and achieving a good heat dissipation effect.

[0074] The lampshade 6 is disposed outside the panel assembly 2, and the lampshade 6 is waterproofly and hermetically connected to the heat dissipation substrate 52 to prevent dust or water from entering the lampshade 6 to contaminate the panel assembly 2, or even damage the panel assembly 2, thereby affecting the normal operation of the lighting device. In this embodiment, the waterproof seal level reaches IPX4.

[0075] In some embodiments, the heat dissipation substrate 52 is bent in a trapezoidal structure, and a groove is formed on one side. The panel assembly 2 is mounted on the surface of the heat dissipation substrate 52, and the heat sink 53 is disposed in the groove. Both ends of the heat dissipation substrate 52 are provided with mounting grooves, and elastic sealing members are disposed in the mounting grooves. The elastic sealing members are provided with plug-in grooves, and the ends of the lampshade 6 are plugged into the plug-in grooves. Since the elastic sealing members can be deformed, the sealing and waterproofing effects are good, and they can also play a connecting role.

[0076] In some embodiments, a thermal pad 54 is provided between the panel assembly 2 and the surface of the heat dissipation substrate 52. The thermal pad 54 transfers the heat of the panel assembly 2 to the heat dissipation substrate 52, and then dissipates the heat through the heat sink 53, thereby improving the heat dissipation efficiency.

[0077] In this embodiment, the heat sink 53 is provided with air flow grooves along the left-right direction. A plurality of air flow grooves are provided along the up-down direction, and the intervals between them may be equal or unequal. Since the air inlet 11 is provided in the left-right direction in this embodiment, air flow grooves are provided along the left-right direction so that the airflow entering from the air inlet 11 can enter the air flow channel 51 more conveniently. In this embodiment, the groove depth of the air flow groove, i.e., the groove depth along the front-back direction, is less than the height of the heat sink 53. It can be understood that the groove bottom of the air flow groove is not connected to the heat dissipation substrate 52.

[0078] In order to enable the lighting device to illuminate multiple directions, the illumination angle of the lighting device can be adjusted according to the usage, such as Figures 6 to 9 As shown, a first surface 13 for supporting the lighting device and a support assembly 7 are provided on the housing 1, and the support assembly 7 includes a support portion 71, the proximal end of the support portion 71 is connected to the housing 1, and the support portion 71 includes an extended position extending out of the first surface 13 and a storage position accommodated in the housing 1. When the support portion 71 is in the extended position, the distal end of the support portion 71 is away from the first surface 13, and the support portion 71 can be kept in the extended position to support the lighting device, and the lighting light output angle of the lighting device can be adjusted by the cooperation between the support portion 71 and the first surface 13.

[0079] The housing 1 is provided with a support portion 71, which has a protruding position extending from the first surface 13 (see Figure 6 shown) and the storage position contained in the housing 1 (refer to Figure 8 As shown in Figure 8 As shown, when the support portion 71 is in the extended position, the support portion 71 can support the lighting device, so that the illumination angle of the lighting device is changed, and the illumination angle of the lighting device is adjusted, thereby realizing multi-angle illumination of the lighting device. By switching the support portion 71 between the extended position and the storage position, the lighting angle of the lighting device can be different.

[0080] The first surface 13 is the bottom of the housing 1 , and the distal end of the support portion 71 is away from the first surface 13 in the direction of the panel assembly 2 from the DC power supply 3 , so that the lighting device is tilted upward to adjust the lighting angle of the lighting device.

[0081] In some embodiments, the DC power supply 3 and the panel assembly 2 are arranged along the front-to-back direction, and the support portion 71 is arranged between the DC power supply 3 and the panel assembly 2. After the support portion 71 is in the extended position and supported on the work surface, the distal end of the support portion 71 and the DC power supply 3 can achieve a force support balance to stably support the lighting device on the work surface.

[0082] After the support portion 71 is in the extended position and supported on the work surface, the DC power supply 3 or the power supply combination portion 4 is also supported on the work surface, and the lighting device is at an inclined angle, thereby achieving different lighting angles of the lighting device, and the lighting device can be stably supported on the work surface. The inclination angle of the lighting device is adjustable, which can be achieved by adjusting the position of the support portion 71 supported on the work surface, and the inclination angle a of the lighting device is greater than 0° and less than or equal to 45°. In some embodiments, the inclination angle a of the lighting device is greater than 0° and less than or equal to 30°.

[0083] In some embodiments, the proximal end of the support portion 71 is rotatably connected to the shell 1, and an elastic member is provided at the connection between the support portion 71 and the shell 1, and the elastic member is configured so that the distal end of the support portion 71 always has a tendency to move away from the first surface 13, that is, the elastic member can make the support portion 71 in an extended position to support the lighting device.

[0084] like Figure 6 and Figure 7 As shown, when the support portion 71 is in the storage position, it is necessary to ensure that the support portion 71 is accommodated in the housing 1, so a locking mechanism 72 is provided, and the locking mechanism 72 keeps the support portion 71 in the storage position.

[0085] In some embodiments, the locking mechanism 72 includes a limiting portion 721 disposed on the housing 1 and a receiving portion 722 disposed on the supporting portion 71 , and the limiting portion 721 can be connected to or separated from the receiving portion 722 .

[0086] like Fig. 9 As shown, the receiving portion 722 includes a card slot, the limiting portion 721 includes a buckle 7211 and a button 7212 connected to the buckle 7211, the buckle 7211 and the button 7212 are respectively slidably arranged on the housing 1, and a spring is further arranged between the button 7212 and the buckle 7211, and the spring can make the buckle 7211 slide toward the receiving portion 722 and be engaged in the card slot to lock the support portion 71. Toggling the button 7212 can make the buckle 7211 move away from the card slot to release the lock on the support portion 71.

[0087] In some other embodiments, the receiving portion 722 includes a slot, the limiting portion 721 includes a stopper, and the stopper is rotatably disposed on the housing 1. Rotating the stopper can cause the stopper to be engaged in the slot or separated from the slot.

[0088] When the support portion 71 is placed in the storage position, the support portion 71 does not protrude from the first surface 13 , and the first surface 13 of the lighting device can be stably supported on the work surface.

[0089] like Fig. 9 As shown, when in the extended position, the distal end of the support portion 71 is away from the first surface 13, and the support portion 71 can remain in the extended position to support the lighting device, and the limiting portion 721 is in a state of being connected to the receiving portion 722. When it is necessary to lock the support portion 71, the button is pushed to move the card block away from the card slot, and the support portion 71 is stored in the storage position. The button is released, and the card block moves toward the support portion 71 and is engaged in the card slot.

[0090] In this embodiment, the support portion 71 makes the entire lighting device at an inclined angle, thereby changing the illumination angle of the lighting device. In some embodiments, the support portion 71 can adjust the inclination angle of the panel assembly 2, thereby changing the illumination angle of the lighting device. Figures 10 to 12As shown, the shell 1 is also provided with a handle assembly 8, which includes a plurality of gripping portions for grasping. The handle assembly 8 cooperates with the DC power supply 3 or the power supply combination portion 4 to adjust the illumination angle of the lighting device, so that the lighting device has a plurality of illumination angles, thereby improving the flexibility of the lighting device.

[0091] The DC power supply 3 and the panel assembly 2 are arranged along the front-to-back direction, and the handle assembly 8 is arranged between the DC power supply 3 and the panel assembly 2, which conforms to the ergonomic design. When the lighting device is grasped and lifted by the handle assembly 8, the lighting device can maintain balance, and the user can also save effort when carrying the lighting device by hand.

[0092] In some embodiments, the handle assembly 8 and the DC power supply 3 or the power supply combination part 4 can support the lighting device on the work surface so that the illumination angle of the lighting device can be adjusted.

[0093] The surface of the handle assembly 8 in contact with the work surface is an arc surface, which avoids damaging the work surface and also improves the comfort of the user holding the handle assembly 8. In some embodiments, all surfaces of the handle assembly 8 are set to arc surfaces, which is convenient for users to hold and also improves the aesthetics of the lighting device.

[0094] In some embodiments, the handle assembly 8 includes a first handle 81 and a second handle 82 disposed on the left and right sides of the housing 1, and the first handle 81 or the second handle 81 cooperates with the DC power supply 3 or the power supply combination part 4 to adjust the illumination angle of the lighting device. Unlike the above-mentioned support portion 71 for adjusting the illumination angle of the lighting device, the support portion 71 adjusts the illumination angle of the lighting device in the front-to-back direction of the lighting device, while the first handle 81 and the second handle 82 adjust the illumination angle of the lighting device in the left-right direction of the lighting device.

[0095] In order to enable the first handle 81 or the second handle 82 and the DC power supply 3 or the power supply combination 4 to cooperate to stably support the lighting device on the work surface, the first handle 81 and the second handle 82 are both bent toward the DC power supply 3, and when the lighting device falls to the ground, the first handle 81 and the second handle 82 arranged on both sides of the DC power supply 3 can also protect the DC power supply 3 and the panel assembly 2.

[0096] In some embodiments, a third handle 83 is provided above the housing 1, and the third handle 83 connects the first handle 81 and the second handle 82. The user holds the third handle 83 to facilitate the transfer of the lighting device. In order to improve the aesthetics of the lighting device, the third handle 83 is smoothly connected with the first handle 81 and the second handle 82, and the surface of the third handle 83 is an arc surface, which improves the comfort of holding the third handle 83. The handle assembly 8 is arranged around the left, upper and right sides of the outer circumference of the housing 1. When the lighting device falls, the handles arranged around the housing 1 can protect the lighting device. In some other embodiments, handles can also be provided on other side walls of the housing 1, which are not specifically limited here.

[0097] The handle assembly 8 is manufactured by gas-assisted molding. Compared with ordinary injection molding, the handle assembly 8 does not need to be covered with rubber, and the handle assembly 8 heated by gas-assisted molding is lighter than the handle assembly 8 manufactured by ordinary injection molding.

[0098] It is further explained that gas-assisted molding, or gas-assisted injection molding, is a process that uses an inert gas (usually nitrogen) to form one or more hollow channels in the injection-molded plastic part. At the end of the filling stage, the inert gas is injected into the unsolidified melt of the product, and the gas follows the path of least resistance and fills the thicker melt part with the gas channel. The gas pressure makes the plastic product close to the surface of the mold cavity, compensating for shrinkage until the part solidifies. Finally, the gas is discharged to the atmosphere or recycled. Gas-assisted injection molding can reduce the weight of molded plastic, and the material savings (weight, cost) of thick-walled parts can be up to 40%, thereby reducing material costs. Shorten the molding cycle time, thereby reducing production costs. Reduce the pressure in the mold, thereby reducing mold wear. Use gas as a means of evenly transmitting pressure throughout the molding process, so that the thicker wall rib reinforcement parts form a uniform thickness and eliminate sink marks. The pressure in the mold is reduced by up to 70%, so the clamping force is reduced, so that larger molds can be hung on smaller machines. It also reduces molded stresses, making it easier to achieve low internal stress levels and low warpage for thick and thin wall combinations, thereby improving dimensional stability without deformation.

[0099] The material of the handle assembly 8 includes one of polypropylene, ABS, HIPS, polycarbonate, PPC and nylon, which is a thermoplastic plastic and can be used in a gas-assisted molding process.

[0100] Continue to refer to Figure 1 and Figure 2As shown, the DC power supply 3 and the power supply combination part 4 are detachably connected. After the DC power supply 3 is removed from the lighting device, the weight of the lighting device is set to the bare weight. The DC power supply 3 supplies power to the light-emitting body of the panel assembly 2. The DC power supply 3 can also supply power to power tools, thereby playing the role of charging the power tools.

[0101] The luminous flux of light emitted by the panel assembly 2 at maximum power is greater than or equal to 2000lm and less than or equal to 5000lm, and the ratio of the luminous flux of light emitted by the panel assembly 2 at maximum power to the bare metal weight of the lighting device is greater than or equal to 1300lm / kg and less than or equal to 3000lm / kg. In some embodiments, the luminous flux of light emitted by the panel assembly 2 at maximum power is greater than or equal to 2500lm and less than or equal to 5000lm. In some embodiments, the luminous flux of light emitted by the panel assembly 2 at maximum power is greater than or equal to 3000lm and less than or equal to 5000lm. The brightness of the lighting device is set according to the size of the lighting device to ensure the lighting brightness of the lighting device without affecting the endurance of the lighting device.

[0102] The illumination intensity of the lighting device is greater than or equal to 300LUX and less than or equal to 1000LUX, and the illumination brightness of the lighting device is met while ensuring the endurance of the lighting device. In some embodiments, the illumination intensity of the lighting device is greater than or equal to 450LUX and less than or equal to 950LUX. The color rendering index of the lighting device is 80.

[0103] In some embodiments, the color temperature of the panel assembly 2 is adjustable, so as to adjust the color of the light according to the usage habits. The color temperature of the panel assembly 2 is greater than or equal to 2500K and less than or equal to 5000K.

[0104] The color temperature of the panel assembly 2 is adjusted by changing the operating current of the adjacent light emitting body 21 to adjust the color temperature of the panel assembly 2 .

[0105] Exemplarily, the panel assembly 2 includes three light boards, each of which is electrically connected to the main control board. The DC power supply 3 can power the main control board. Each light board includes one warm light lamp and one white light lamp. A constant current source driver chip is used to drive each lamp on each light board. The main control board controls the brightness of each lamp through a PWM wave, thereby adjusting the color temperature.

[0106] The lighting device is also provided with a charging interface. In this embodiment, the charging interface is provided on the housing 1. In other alternative implementations, the charging interface can be provided on the panel assembly 2.

[0107] The charging interface can be used to power external devices, for example, the user's electronic devices, including mobile phones, tablet computers, wearable devices, etc. When the user needs to charge the mobile phone, the mobile phone is placed in the housing 1 or other locations, and the mobile phone is connected to the charging interface via a data cable, so as to charge the mobile phone through the charging interface. The charging interface is specifically one or more of a USB interface, a type-c interface, and a lighting interface. The battery pack on the lighting device can also be charged through the charging interface. Therefore, when the lighting device is not convenient to charge, the battery pack can be charged using the remaining power on the mobile phone or some other compatible devices. Or it can be connected to a vehicle power supply and the battery pack can be charged using the vehicle power supply. Or the charging interface can be used to directly power the lighting device.

[0108] The above shows and describes the basic principles, main features and advantages of the present application. Those skilled in the art should understand that the above embodiments do not limit the present application in any form, and any technical solution obtained by equivalent replacement or equivalent transformation falls within the protection scope of the present application.

Claims

1. A lighting device, characterized in that: include: A housing having a first accommodation space; A panel assembly, including a light emitting body, wherein the panel assembly is supported by the housing; A DC power supply is used to supply power to the light-emitting body. A power supply combination portion is provided on the shell, and the DC power supply is arranged on the power supply combination portion. a heat dissipation assembly, at least partially disposed in the first accommodation space, the heat dissipation assembly comprising an air flow channel disposed in an up-down direction for air flow; The shell is provided with an air inlet for airflow entering the first accommodating space and an air outlet for airflow flowing out of the first accommodating space through the airflow channel, and the air outlet is at least partially arranged above the airflow channel.

2. The lighting device according to claim 1, characterized in that: The heat dissipation assembly includes a heat dissipation substrate, one side of which is attached to the panel assembly, and the other side of which is provided with a plurality of heat dissipation fins extending in the up-and-down directions, and the airflow channel is formed between two adjacent heat dissipation fins.

3. The lighting device according to claim 2, characterized in that: At least part of the heat sink is made of thermally conductive plastic.

4. The lighting device according to claim 2, characterized in that: The heat sink is made of heat-conducting plastic, and a metal sheet is attached to or embedded in the heat sink.

5. The lighting device according to claim 3 or 4, characterized in that: The thermal conductivity of the thermally conductive plastic is greater than or equal to 0.5 W / (m*K) and less than or equal to 20 W / (m*K).

6. The lighting device according to claim 2, characterized in that: The lighting device further comprises a lampshade, which is disposed outside the panel assembly and is waterproofly and hermetically connected to the heat dissipation substrate.

7. The lighting device according to claim 1, characterized in that: The air outlet is arranged at the upper part of the shell along the up-down direction.

8. The lighting device according to claim 1, characterized in that: The air inlet is arranged on at least one side of the shell along the left-right direction, and the air inlet is arranged lower than the air outlet.

9. The lighting device according to claim 1, characterized in that: Along the front-to-back direction of the shell, the DC power supply is arranged on the rear side of the panel assembly.

10. The lighting device according to claim 1, characterized in that: The nominal voltage of the DC power supply is greater than or equal to 36V and less than or equal to 80V.

11. A lighting device, characterized in that: include: A housing having a first accommodation space; A panel assembly, including a light emitting body, wherein the panel assembly is supported by the housing; A DC power supply is used to supply power to the light-emitting body. A power supply combination portion is provided on the shell, and the DC power supply is arranged on the power supply combination portion. A heat dissipation component is at least partially disposed in the first accommodating space, and the heat dissipation component includes a plurality of heat sinks extending in the up-and-down directions, and the heat sinks are at least partially made of thermally conductive plastic, and the thermal conductivity of the thermally conductive plastic is greater than or equal to 0.5 W / (m*K) and less than or equal to 20 W / (m*K).

12. A lighting device, characterized in that: include: A housing having a first accommodation space; A panel assembly, including a light emitting body, wherein the panel assembly is supported by the housing; A DC power supply is used to supply power to the light-emitting body. A power supply combination portion is provided on the shell, and the DC power supply is arranged on the power supply combination portion. a heat dissipation assembly, at least partially disposed in the first accommodation space, the heat dissipation assembly comprising a plurality of heat dissipation fins extending in the up-down direction, and an air flow channel for air flow to flow is formed between two adjacent heat dissipation fins; The shell is provided with an air outlet for allowing air to flow out of the first accommodation space through the air flow channel, and the air outlet is at least partially arranged above the air flow channel.

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