CN221197338U - Panel light - Google Patents

Abstract

The application belongs to the technical field of lamps and provides a panel lamp, which comprises a shell, a heat radiation module and a lighting module, wherein the shell is provided with a heat radiation air channel, an air inlet and an air outlet, and the heat radiation module comprises a cross-flow fan which is arranged in the heat radiation air channel and divides the heat radiation air channel into an air inlet air channel and an air outlet air channel. The lighting module comprises a lamp panel assembly and a circuit board assembly which are electrically connected with each other, one of the lamp panel assembly and the circuit board assembly is arranged in the air inlet duct along the direction from the inlet of the fan to the direction away from the inlet of the fan, and the other one of the lamp panel assembly and the circuit board assembly is arranged in the air outlet duct along the direction from the outlet of the fan to the direction away from the outlet of the fan. The panel lamp provided by the application adopts the cross-flow fan as the airflow driving component, so that the airflow can be well matched with the position and the shape of the lighting module, a plurality of parallel axial-flow fans are not required, the structure of the panel lamp is more compact, and the size is smaller.

Description

Panel light

Technical Field

The application relates to the technical field of lamps, in particular to a panel lamp.

Background

The panel lamp has the advantages of good illumination uniformity, soft light and the like, and is widely applied in the film industry. The panel lamp generally comprises a shell and a lamp panel arranged in the shell, the heat dissipation module generally comprises an axial flow fan, the axial flow fan is used for driving gas in the shell to flow, heat of the lamp panel is taken out of the shell, because the heating area of the lamp panel of the panel lamp is large, the panel lamp always needs a plurality of parallel axial flow fans to enable air flow to cover the heating surface of the lamp panel, and because each axial flow fan needs to be provided with a corresponding driving mechanism and an air duct, the internal structure of the panel lamp is not compact enough and has a large volume, and even if a plurality of axial flow fans are arranged in parallel, the corresponding heat dissipation capacity cannot meet the further heat dissipation requirement of the panel lamp.

Disclosure of utility model

The embodiment of the application aims to provide a panel lamp, which solves the technical problems that the internal structure of the panel lamp is not compact enough and the volume is large because a plurality of axial flow fans which are arranged in parallel are adopted to radiate heat of a lamp panel in the prior art.

In order to achieve the above purpose, the application adopts the following technical scheme: the panel lamp comprises a shell, a heat radiation module and a lighting module, wherein the shell is provided with a heat radiation air channel, and an air inlet and an air outlet which are respectively communicated with the heat radiation air channel; the heat dissipation module comprises a cross-flow fan arranged in the heat dissipation air duct, the cross-flow fan is provided with a fan inlet and a fan outlet which extend along the axial direction of the cross-flow fan, and the cross-flow fan divides the heat dissipation air duct into an air inlet air duct which is communicated with the fan inlet and the air inlet and an air outlet air duct which is communicated with the fan outlet and the air outlet; the lighting module comprises a lamp panel assembly and a circuit board assembly which are electrically connected, wherein one of the lamp panel assembly and the circuit board assembly is arranged in the air inlet duct along the direction from being close to the fan inlet to being far away from the fan inlet, and the other one of the lamp panel assembly and the circuit board assembly is arranged in the air outlet duct along the direction from being close to the fan outlet to being far away from the fan outlet.

In one embodiment, the width of the fan inlet is greater than or equal to the width of one of the light panel assembly and the circuit board assembly disposed in the air inlet duct; and/or the width of the fan outlet is greater than or equal to the width of one of the air outlet air duct arranged in the lamp panel assembly and the circuit board assembly.

In one embodiment, the housing includes an outer frame having the air inlet and the air outlet, and a partition plate disposed in the outer frame, where the partition plate and the cross flow fan jointly partition an inner space of the outer frame into an air inlet duct above the cross flow fan and the partition plate, and an air outlet duct below the cross flow fan and the partition plate, and the lamp panel assembly and the circuit board assembly are respectively disposed on the upper side and the lower side of the partition plate.

In one embodiment, the air inlet is arranged on the top wall of the outer frame body and/or the side wall of one side of the outer frame body away from the cross flow fan; the air outlet is arranged on the bottom wall of the outer frame body and/or the side wall of one side of the outer frame body away from the cross flow fan.

In one embodiment, one of the bottom wall and the top wall of the outer frame body is further provided with a light outlet for allowing light of the lamp panel assembly to pass through.

In one embodiment, the heat dissipation module further includes a first heat dissipation assembly, the first heat dissipation assembly and the lamp panel assembly are disposed in the same one of the air inlet duct and the air outlet duct, the first heat dissipation assembly includes a first heat dissipation plate and a plurality of first heat dissipation fins disposed on the first heat dissipation plate at intervals, one side, away from the first heat dissipation fins, of the first heat dissipation plate is attached to the lamp panel assembly, and the length direction of the first heat dissipation fins is perpendicular to the axial direction of the cross flow fan.

In one embodiment, the first heat dissipation assembly further includes a heat pipe, the heat pipe penetrates through the plurality of first heat dissipation fins, and a length direction of the heat pipe is parallel to an axial direction of the through-flow fan.

In one embodiment, the heat dissipation module further includes a second heat dissipation assembly, the second heat dissipation assembly and the circuit board assembly are disposed in the same one of the air inlet duct and the air outlet duct, the second heat dissipation assembly includes a second heat dissipation plate and a plurality of second heat dissipation fins disposed on the second heat dissipation plate at intervals, the second heat dissipation plate is used for transferring heat of the circuit board assembly to the plurality of second heat dissipation fins, and a length direction of the second heat dissipation fins is perpendicular to an axial direction of the through-flow fan.

In one embodiment, the second heat dissipation assembly further includes a flexible thermal pad sandwiched between the second heat dissipation plate and the circuit board assembly.

In one embodiment, the first heat dissipation plate and/or the second heat dissipation plate extend to be attached to the outer wall of the through-flow fan so as to absorb heat generated by the through-flow fan.

In one embodiment, the second heat dissipation assembly, the circuit board assembly, the partition board, the first heat dissipation assembly and the lamp panel assembly are sequentially attached to each other in the vertical direction.

In one embodiment, the panel light further comprises a sealing member for sealing a gap between an edge of the fan outlet and one of the first heat dissipation assembly and the second heat dissipation assembly, which is provided in the air outlet duct.

The panel lamp provided by the application has the beneficial effects that: compared with the prior art, the panel lamp provided by the application has the advantages that the cross-flow fan is used as the airflow driving component to be arranged in the radiating air duct, one of the lamp panel assembly and the circuit board assembly is arranged in the air inlet air duct along the direction from the inlet of the fan to the direction from the inlet of the fan, the other of the lamp panel assembly and the circuit board assembly is arranged in the air outlet air duct along the direction from the outlet of the fan to the direction from the outlet of the fan, laminar airflow can be formed in the air inlet air duct and the air outlet air duct respectively, one of the lamp panel assembly and the circuit board assembly is arranged along the flow path of the laminar airflow in the air inlet air duct as far as possible, the other of the lamp panel assembly and the circuit board assembly is arranged along the flow path of the laminar airflow in the air outlet air duct as far as possible, the airflow form can be matched with the positions and the shapes of the circuit board assembly and the lamp panel assembly, the circuit board assembly and the lamp panel assembly can be effectively radiated, the number of the internal structures of the panel lamp assembly is reduced, and the panel lamp assembly is avoided, the panel lamp is more compact in internal structure and the panel lamp is small in size.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are needed in 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 schematic structural diagram of a panel light according to an embodiment of the present application;

FIG. 2 is a schematic view of an exploded structure of the panel light shown in FIG. 1;

FIG. 3 is a partial schematic view of the panel light of FIG. 1, taken along the direction A-A;

FIG. 4 is a schematic view of a portion of the panel light shown in FIG. 1, taken along the direction B-B;

Fig. 5 is a schematic view of a partial structure of another panel light according to an embodiment of the present application after being cut.

Wherein, each reference sign in the figure:

100-a housing; 101-a heat dissipation air duct; 1011-air inlet duct; 1012-an air outlet duct; 102-an air inlet; 103-an air outlet; 104-a light outlet; 110-an outer frame; 111-a bottom frame; 112-cover plate; 120-separator;

200-a heat dissipation module; 210-a cross-flow fan; 201-a fan inlet; 202-a fan outlet; 220-a first heat sink assembly; 221-a first heat dissipation plate; 222-first heat radiating fins; 223-heat pipe; 230-a second heat sink assembly; 231-a second heat sink; 232-second heat radiating fins; 233-a flexible thermal pad;

300-a lighting module; 310-a lamp panel assembly; 320-a circuit board assembly;

400-seal.

Detailed Description

Embodiments of the present application are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to the drawings are illustrative and intended to explain the present application and should not be construed as limiting the application.

In the description of the present application, it should be understood that the terms "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like indicate orientations or positional relationships based on the orientation or positional relationships shown in the drawings, merely to facilitate describing the present application and simplify the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific 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.

Reference throughout this specification to "one embodiment" or "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment is included in at least one embodiment of the present application. Thus, the appearances of the phrase "in one embodiment" or "in some embodiments" in various places throughout this specification are not necessarily all referring to the same embodiment. Furthermore, the particular features, structures, or characteristics may be combined in any suitable manner in one or more embodiments.

Referring to fig. 1 to 3, a panel light according to an embodiment of the application will be described. The panel light comprises a shell 100, a heat dissipation module 200 and a lighting module 300, wherein the shell 100 is provided with a heat dissipation air duct 101, and an air inlet 102 and an air outlet 103 which are respectively communicated with the heat dissipation air duct 101. The heat dissipation module 200 includes a cross flow fan 210, the cross flow fan 210 has a fan inlet 201 and a fan outlet 202 extending along the axial direction thereof, the cross flow fan 210 is disposed in the heat dissipation air duct 101 and divides the heat dissipation air duct 101 into an air inlet air duct 1011 and an air outlet air duct 1012, the air inlet air duct 1011 communicates with the fan inlet 201 and the air inlet 102, and the air outlet air duct 1012 communicates with the fan outlet 202 and the air outlet 103. The lighting module 300 includes a lamp panel assembly 310 and a circuit board assembly 320, the lamp panel assembly 310 and the circuit board assembly 320 are electrically connected with each other, one of the lamp panel assembly 310 and the circuit board assembly 320 is disposed in the air inlet duct 1011 along a direction from the direction close to the fan inlet 201 to the direction far from the fan inlet 201, and the other of the lamp panel assembly 310 and the circuit board assembly 320 is disposed in the air outlet duct 1012 along a direction from the direction close to the fan outlet 202 to the direction far from the fan outlet 202.

It should be noted that, the circuit board assembly 320 includes a circuit board and an electrical component disposed on the circuit board, the lamp board assembly 310 includes a lamp board and a light emitting component disposed on the lamp board, the electrical component disposed on the circuit board may have functions of driving the light emitting component on the lamp board, supplying energy to the light emitting component on the lamp board, and the like, where the circuit board assembly 320 may be completely disposed in the housing 100, the circuit board assembly 320 may also have a part of structure exposed to the outside of the housing 100, the lamp board assembly 310 may also be completely disposed in the housing 100, and the lamp board assembly 310 may also have a part of structure exposed to the outside of the housing 100, for example, the housing 100 may also be provided with a light outlet 104, the lamp board cover of the lamp board assembly 310 is disposed at the light outlet 104, and the light emitting component is disposed on a side of the lamp board facing the outside of the housing 100, so that light emitted by the light emitting component can be transmitted from the light outlet 104, and the mounting positions of the lamp board assembly 310 and the circuit board assembly 320 may be selected according to the need.

In one implementation, referring to fig. 3, a circuit board assembly 320 is disposed in an air inlet channel 1011, and a lamp panel assembly 310 is disposed in an air outlet channel 1012; in another implementation, referring to fig. 5, a lamp panel assembly 310 is disposed in an air intake duct 1011 and a circuit panel assembly 320 is disposed in an air outlet duct 1012. In fig. 3 and 5, the gas flow direction is shown by the dotted arrow. Preferably, one of the lamp panel assembly 310 and the circuit board assembly 320 with smaller heat generation is disposed in the air intake duct 1011, and one of the lamp panel assembly 310 and the circuit board assembly 320 with larger heat generation is disposed in the air outlet duct 1012, so that the arrangement can avoid that the temperature of the air flow flowing into the air outlet duct 1012 is too high to effectively dissipate heat of the components in the air outlet duct 1012.

Compared with the prior art, the panel lamp provided in this embodiment has the through-flow fan 210 as the airflow driving component disposed in the heat dissipation air duct 101, one of the lamp panel assembly 310 and the circuit board assembly 320 disposed in the air intake air duct 1011 along the direction from the fan inlet 201 to the fan inlet 201, the other of the lamp panel assembly 310 and the circuit board assembly 320 disposed in the air outlet air duct 1012 along the direction from the fan outlet 202 to the fan outlet 202, and the laminar airflow can be formed in the air intake air duct 1011 and the air outlet air duct 1012 respectively, and the one of the lamp panel assembly 310 and the circuit board assembly 320 is disposed along the flow path of the laminar airflow in the air inlet air duct 1011 as much as possible, and the other of the lamp panel assembly 310 and the circuit board assembly 320 is disposed along the flow path of the laminar airflow in the air outlet air duct 1012 as much as possible, so that the airflow forms can be well matched with the positions and shapes of the circuit board assembly 320 and the lamp panel assembly 310, the circuit board assembly 320 and the lamp panel assembly 310 can be effectively dissipated, and the use of a plurality of parallel axial fans can be avoided, which is beneficial to reducing the number of the panel lamp internal structure and reducing the panel lamp internal structure and the panel lamp structure and making the panel lamp compact.

In addition, the panel lamp provided in this embodiment is provided with the elements to be heat-dissipated in the air inlet duct 1011 and the air outlet duct 1012, so that the space of the whole heat-dissipating duct 101 is utilized, and the internal structure of the panel lamp is more compact.

In addition, because the cross flow fan 210 has the advantages of more uniform air outlet and wider air outlet coverage compared with the axial flow fan, the further heat dissipation requirement of the panel light can be better met, and the cross flow fan 210 also has the advantage of low noise compared with the axial flow fan, and the noise of the heat dissipation module 200 during working can be reduced, so that the overall noise of the panel light is reduced.

In another embodiment of the present application, the width of the fan inlet 201 is greater than or equal to the width of one of the lamp panel assembly 310 and the circuit board assembly 320 disposed in the air intake duct 1011.

It should be noted that, the width of the fan inlet 201 is the dimension of the fan inlet 201 in the axial direction of the cross-flow fan 210, the width of the circuit board assembly 320 is the dimension of the circuit board assembly 320 in the axial direction of the cross-flow fan 210, the width of the lamp panel assembly 310 is also the dimension of the lamp panel assembly 310 in the axial direction of the cross-flow fan 210, and the axial direction of the cross-flow fan 210 is the X direction shown in fig. 3. It will be appreciated that the width of the fan inlet 201 is greater than or equal to the width of the circuit board assembly 320 when the circuit board assembly 320 is disposed within the intake duct 1011 and the width of the fan inlet 201 is greater than or equal to the width of the lamp panel assembly 310 when the lamp panel assembly 310 is disposed within the intake duct 1011.

In the panel light provided in this embodiment, the width of the fan inlet 201 is set to be greater than or equal to the width of the circuit board assembly 320 or the lamp panel assembly 310 disposed in the air inlet duct 1011, which is favorable for the air flow in the air inlet duct 1011 to fully cover the circuit board assembly 320 or the lamp panel assembly 310, so as to effectively dissipate heat of the circuit board assembly 320 or the lamp panel assembly 310.

In another embodiment of the present application, the width of the fan outlet 202 is greater than or equal to the width of one of the light panel assembly 310 and the circuit board assembly 320 disposed in the outlet air duct 1012.

It should be noted that, the width of the fan outlet 202 is the dimension of the fan outlet 202 in the axial direction of the cross-flow fan 210, the width of the circuit board assembly 320 is the dimension of the circuit board assembly 320 in the axial direction of the cross-flow fan 210, and the width of the lamp panel assembly 310 is the dimension of the lamp panel assembly 310 in the axial direction of the cross-flow fan 210. It will be appreciated that the width of the fan outlet 202 is greater than or equal to the width of the circuit board assembly 320 when the circuit board assembly 320 is disposed within the outlet air duct 1012, and the width of the fan outlet 202 is greater than or equal to the width of the lamp panel assembly 310 when the lamp panel assembly 310 is disposed within the outlet air duct 1012.

In the panel light provided in this embodiment, the width of the fan outlet 202 is set to be greater than or equal to the width of the circuit board assembly 320 or the lamp panel assembly 310 disposed in the air outlet duct 1012, so that the air flow in the air outlet duct 1012 is beneficial to fully cover the circuit board assembly 320 or the lamp panel assembly 310, so as to effectively dissipate heat of the circuit board assembly 320 or the lamp panel assembly 310.

In another embodiment of the present application, referring to fig. 1 to 3, a housing 100 includes an outer frame 110 and a partition board 120, an air inlet 102 and an air outlet 103 are provided on the outer frame 110, the partition board 120 is disposed in the outer frame 110, the partition board 120 and the cross-flow fan 210 jointly partition an inner space of the outer frame 110 into an air inlet channel 1011 and an air outlet channel 1012, the air inlet channel 1011 is located above the cross-flow fan 210 and the partition board 120, the air outlet channel 1012 is located below the cross-flow fan 210 and the partition board 120, and the lamp panel assembly 310 and the circuit board assembly 320 are located on the upper side and the lower side of the partition board 120, respectively.

It should be noted that, referring to fig. 3, the outer frame 110 is a hollow frame structure, and the length direction, the width direction and the height direction of the outer frame 110 are the Y direction, the X direction and the Z direction shown in the drawing, and the through-flow fan 210 may be disposed in the outer frame 110 along the X direction or the Y direction, may be disposed in the outer frame 110 along a direction inclined with respect to the X direction and the Y direction and perpendicular to the Z direction, and may be disposed in the outer frame 110 along a direction inclined with respect to the X direction, the Y direction and the Z direction; the partition plate 120 may be disposed parallel to the plane in which the X direction and the Y direction are located, or may be disposed obliquely with respect to the plane in which the X direction and the Y direction are located, and the partition plate 120 and the cross flow fan 210 are required to partition the internal space of the outer frame 110 into the air inlet duct 1011 and the air outlet duct 1012, which are sequentially stacked in the Z direction.

It should be further noted that, the lamp panel assembly 310 is disposed in one of the air inlet channel 1011 and the air outlet channel 1012, the lamp panel assembly 310 may be parallel to the partition board 120, or may be disposed obliquely with respect to the partition board 120, the circuit board assembly 320 is disposed in the other one of the air inlet channel 1011 and the air outlet channel 1012, the circuit board assembly 320 may be parallel to the partition board 120, or may be disposed obliquely with respect to the partition board 120, and only the lamp panel assembly 310, the partition board 120 and the circuit board assembly 320 need to be disposed sequentially in the Z direction.

Optionally, referring to fig. 3, in the embodiment shown in fig. 3, the through-flow fan 210 is disposed in the outer frame 110 along the X direction, the partition 120 is parallel to the plane where the X direction and the Y direction are located, the partition 120 and the through-flow fan 210 are located at the same height in the Z direction, the lamp panel assembly 310 is located below the partition 120 and parallel to the partition 120, and the circuit board assembly 320 is located above the partition 120 and parallel to the partition 120. So set up, lamp plate subassembly 310, baffle 120, circuit board subassembly 320 three parallel to each other and range upon range of in proper order, through-flow fan 210 sets up the one side of above-mentioned three, enables the space in the frame body 110 and obtains make full use of, is favorable to reducing the volume of panel light by a wide margin.

Specifically, the air inlet 102 may be disposed on a top wall of the outer frame 110, or may be disposed on a side wall of the outer frame 110 away from the cross flow fan 210, or may be disposed on both the top wall of the outer frame 110 and a side wall of the outer frame 110 away from the cross flow fan 210. The air outlet 103 may be disposed on the bottom wall of the outer frame 110, or may be disposed on a side wall of the outer frame 110 away from the cross flow fan 210, or may be disposed on both the bottom wall of the outer frame 110 and a side wall of the outer frame 110 away from the cross flow fan 210. The positions of the air inlet 102 and the air outlet 103 are not limited in this embodiment.

Specifically, the outer frame 110 may further be provided with a light outlet 104 through which the light of the lamp panel assembly 310 is transmitted, and the light outlet 104 may be disposed on a bottom wall of the outer frame 110 or may be disposed on a top wall of the outer frame 110, which is not limited only by the position of the light outlet 104 in this embodiment.

Preferably, referring to fig. 3, the outer frame 110 may include a bottom frame 111 and a cover plate 112, the bottom frame 111 is a frame body with an opening at the top, the cover plate 112 is covered on the top opening of the bottom frame 111, the air inlet 102 is disposed on the cover plate 112, the air outlet 103 is disposed on a side wall of the bottom frame 111 far away from the through-flow fan 210, a light outlet 104 (refer to fig. 2) is disposed on a bottom wall of the bottom frame 111, the circuit board assembly 320 is disposed in the air inlet channel 1011, the lamp board assembly 310 is disposed in the air outlet channel 1012 and is covered at the light outlet 104, so that the air inlet area of the air inlet 102 may be set larger, which is favorable for the through-flow fan 210 to suck sufficient air to dissipate heat for the lighting module 300, and the air inlet 102 and the air outlet 103 are disposed on different sides of the outer frame 110, so as to avoid the hot air exhausted from the air outlet 103 from the air inlet 102 to reenter the air inlet channel 1011, thereby avoiding the air short-circuit problem.

Specifically, the included angle between the fan inlet 201 and the fan outlet 202 of the cross-flow fan 210 may be set as required, for example, the included angle between the fan inlet 201 and the fan outlet 202 may be set to 180 °, in the illustrated embodiment, the included angle between the fan inlet 201 and the fan outlet 202 is 90 °, and the depth direction of the fan inlet 201 coincides with the Z direction, and the depth direction of the fan outlet 202 coincides with the Y direction.

On one hand, the panel light provided by the embodiment is provided with the air inlet air duct 1011 and the air outlet air duct 1012 up and down, so that the air ducts are folded, which is beneficial to reducing the size of the panel light in the length direction or the width direction, namely the size of the panel light in the X direction or the Y direction; on the other hand, the cross flow fan 210 and the lighting module 300 are disposed at the same height, so that the dimension of the panel light in the height direction is determined by the larger one of the height of the lighting module 300 and the height of the cross flow fan 210, and the heights of the lighting module 300 and the cross flow fan 210 are not overlapped with each other, which is beneficial to reducing the dimension of the panel light in the height direction, that is, the dimension of the panel light in the Z direction, so that the overall structure of the panel light is more compact.

In another embodiment of the present application, referring to fig. 2 to 4, the heat dissipation module 200 further includes a first heat dissipation assembly 220, the first heat dissipation assembly 220 and the lamp panel assembly 310 are disposed in the same one of the air intake duct 1011 and the air outlet duct 1012, the first heat dissipation assembly 220 includes a first heat dissipation plate 221 and a plurality of first heat dissipation fins 222 disposed on the first heat dissipation plate 221 at intervals, one side of the first heat dissipation plate 221 away from the first heat dissipation fins 222 is attached to the lamp panel assembly 310, and the length direction of the first heat dissipation fins 222 is perpendicular to the axial direction of the cross flow fan 210.

In one possible embodiment, the first heat dissipating component 220 and the lamp panel component 310 are both disposed in the air intake duct 1011, and in another possible embodiment, the first heat dissipating component 220 and the lamp panel component 310 are both disposed in the air outlet duct 1012.

In the panel light provided in this embodiment, the first heat dissipation plate 221 is attached to the light panel assembly 310, and the plurality of first heat dissipation fins 222 are disposed on the side of the first heat dissipation plate 221 away from the light panel assembly 310, so that the heat dissipation area can be increased, the heat dissipation efficiency can be improved, and the heat of the light panel assembly 310 is conducted to the plurality of first heat dissipation fins 222 through the first heat dissipation plate 221 and then is rapidly taken away by the air flow.

In another embodiment of the present application, referring to fig. 2 and 3, the first heat dissipating assembly 220 further includes a heat pipe 223, the heat pipe 223 is penetrated by a plurality of first heat dissipating fins 222, and a length direction of the heat pipe 223 is parallel to an axial direction of the through-flow fan 210.

Specifically, the number of the heat pipes 223 may be one or more, and when the number of the heat pipes 223 is plural, the plural heat pipes are sequentially arranged in a direction perpendicular to the axial direction of the cross flow fan 210, that is, in the Y direction as shown.

The panel lamp provided in this embodiment can disperse the local high temperature generated by the high power element on the lamp panel assembly 310 through the heat pipe 223, which is beneficial to reducing the temperature of the high power element.

In another embodiment of the present application, referring to fig. 2 to 4, the heat dissipation module 200 further includes a second heat dissipation assembly 230, the second heat dissipation assembly 230 and the circuit board assembly 320 are disposed in the same one of the air intake duct 1011 and the air outlet duct 1012, the second heat dissipation assembly 230 includes a second heat dissipation plate 231 and a plurality of second heat dissipation fins 232 disposed on the second heat dissipation plate 231 at intervals, the second heat dissipation plate 231 is used for transferring heat of the circuit board assembly 320 to the plurality of second heat dissipation fins 232, and a length direction of the second heat dissipation fins 232 is perpendicular to an axial direction of the through-flow fan 210.

In one possible embodiment, the second heat sink assembly 230 and the circuit board assembly 320 are both disposed within the air intake duct 1011, and in another possible embodiment, the second heat sink assembly 230 and the circuit board assembly 320 are both disposed within the air outlet duct 1012.

It should be noted that, the second heat dissipation plate 231 may be directly attached to the circuit board assembly 320, and the second heat dissipation plate 231 may also be indirectly attached to the circuit board assembly 320 through the flexible heat conduction pad 233, that is, the flexible heat conduction pad 233 is sandwiched between the second heat dissipation plate 231 and the circuit board assembly 320, so that the electrical components and the circuit board on the circuit board assembly 320 are both better attached to the second heat dissipation plate 231, thereby improving the heat dissipation efficiency.

The panel light provided in this embodiment is to attach the second heat dissipation plate 231 on the circuit board assembly 320, and set a plurality of second heat dissipation fins 232 on the side of the second heat dissipation plate 231 far away from the circuit board assembly 320, so as to increase the heat dissipation area, improve the heat dissipation efficiency, and make the heat of the circuit board assembly 320 be conducted to the plurality of second heat dissipation fins 232 through the second heat dissipation plate 231 and then be taken away by the air flow.

In another embodiment of the present application, the first heat dissipation plate 221 and/or the second heat dissipation plate 231 extend to be attached to the outer wall of the cross flow fan 210, so as to absorb heat generated by the cross flow fan 210.

In one possible embodiment, referring to fig. 3, the first heat dissipation plate 221 extends to be attached to the outer wall of the through-flow fan 210; in another possible embodiment, the second heat dissipation plate 231 extends to be fitted with the outer wall of the cross flow fan 210; in another possible embodiment, the first heat dissipating plate 221 and the second heat dissipating plate 231 each extend to be attached to the outer wall of the cross flow fan 210.

According to the panel lamp provided by the embodiment, the through-flow fan 210 can radiate heat through the first radiating plate 221 and/or the second radiating plate 231, so that the temperature of the through-flow fan 210 is reduced, the service life of the through-flow fan 210 is prolonged, the through-flow fan 210 is radiated by the first radiating plate 221 and/or the second radiating plate 231, a radiating structure for radiating the through-flow fan 210 does not need to be additionally increased, the internal structure of the panel lamp is simplified, and the panel lamp is compact in structure and small in size.

In another embodiment of the present application, referring to fig. 3, the second heat dissipating component 230, the circuit board component 320, the partition 120, the first heat dissipating component 220 and the lamp panel component 310 are sequentially attached to each other in a vertical direction.

In one possible embodiment, referring to fig. 3, the second heat dissipating component 230 and the circuit board component 320 are disposed above the partition 120, the circuit board component 320 is attached to the partition 120, the first heat dissipating component 220 and the lamp panel component 310 are disposed below the partition 120, and the first heat dissipating component 220 is attached to the partition 120. In another possible embodiment, the second heat dissipating component 230 is disposed below the partition 120, the circuit board component 320 is attached to the partition 120, the first heat dissipating component 220 and the lamp panel component 310 are disposed above the partition 120, and the first heat dissipating component 220 is attached to the partition 120, which is not shown in the figure.

In the panel light provided in this embodiment, the heat of the circuit board assembly 320 can be taken away by the first heat dissipation assembly 220 and also can be taken away by the second heat dissipation assembly 230, so that dual heat dissipation can be performed on the circuit board assembly 320, which is beneficial to improving the heat dissipation efficiency of the circuit board assembly 320.

In another embodiment of the present application, referring to fig. 3, the panel light further includes a sealing member 400, the sealing member 400 is used for sealing a gap between an edge of the fan outlet 202 and one of the first heat dissipation component 220 and the second heat dissipation component 230, that is, a gap between an edge of the fan outlet 202 and the first heat dissipation component 220 when the first heat dissipation component 220 is disposed in the air outlet 1012; when the second heat dissipating component 230 is disposed in the air outlet duct 1012, the sealing member 400 is used to seal a gap between the edge of the fan outlet 202 and the second heat dissipating component 230.

By the arrangement, the air flow flowing out from the fan outlet 202 can be totally guided to the first heat dissipation component 220 or the second heat dissipation component 230 arranged in the air outlet 1012, so that the air flow can be prevented from bypassing the first heat dissipation component 220 or the second heat dissipation component 230 as much as possible and directly flowing out from the air outlet 103, and the air flow takes away the heat of the components in the air outlet 1012 as much as possible.

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

Claims (11)

1. A panel light, the panel light comprising:

The shell (100) is provided with a heat dissipation air duct (101), an air inlet (102) and an air outlet (103) which are respectively communicated with the heat dissipation air duct (101);

The heat dissipation module (200) comprises a cross flow fan (210) arranged in the heat dissipation air duct (101), the cross flow fan (210) is provided with a fan inlet (201) and a fan outlet (202) which extend along the axial direction of the cross flow fan (210), the heat dissipation air duct (101) is divided into an air inlet air duct (1011) communicated with the fan inlet (201) and the air inlet (102) and an air outlet air duct (1012) communicated with the fan outlet (202) and the air outlet (103);

The lighting module (300) comprises a lamp panel assembly (310) and a circuit board assembly (320) which are electrically connected, wherein one of the lamp panel assembly (310) and the circuit board assembly (320) is arranged in the air inlet duct (1011) along the direction from being close to the fan inlet (201) to being far away from the fan inlet (201), and the other one of the lamp panel assembly (310) and the circuit board assembly (320) is arranged in the air outlet duct (1012) along the direction from being close to the fan outlet (202) to being far away from the fan outlet (202).

2. The panel light of claim 1, wherein a width of the fan inlet (201) is greater than or equal to a width of one of the light panel assembly (310) and the circuit board assembly (320) provided in the air intake duct (1011); and/or, the width of the fan outlet (202) is greater than or equal to the width of one of the air outlet duct (1012) arranged in the lamp panel assembly (310) and the circuit board assembly (320).

3. The panel light of claim 1, wherein the housing (100) comprises an outer frame (110) having the air inlet (102) and the air outlet (103) and a partition plate (120) disposed in the outer frame (110), the partition plate (120) and the cross flow fan (210) jointly partition an inner space of the outer frame (110) into the air inlet duct (1011) above the cross flow fan (210) and the partition plate (120) and the air outlet duct (1012) below the cross flow fan (210) and the partition plate (120), and the lamp panel assembly (310) and the circuit panel assembly (320) are respectively disposed on an upper side and a lower side of the partition plate (120).

4. A panel light according to claim 3, characterized in that the air inlet (102) is provided at the top wall of the outer frame (110) and/or at the side wall of the outer frame (110) at the side remote from the cross-flow fan (210); the air outlet (103) is arranged on the bottom wall of the outer frame body (110) and/or the side wall of one side of the outer frame body (110) far away from the cross-flow fan (210); and/or, one of the bottom wall and the top wall of the outer frame body (110) is also provided with a light outlet (104) for allowing light of the lamp panel assembly (310) to pass through.

5. The panel light of claim 4, wherein the heat dissipation module (200) further comprises a first heat dissipation assembly (220), the first heat dissipation assembly (220) and the lamp panel assembly (310) are arranged on the same one of the air inlet duct (1011) and the air outlet duct (1012), the first heat dissipation assembly (220) comprises a first heat dissipation plate (221) and a plurality of first heat dissipation fins (222) arranged on the first heat dissipation plate (221) at intervals, one side of the first heat dissipation plate (221) away from the first heat dissipation fins (222) is attached to the lamp panel assembly (310), and the length direction of the first heat dissipation fins (222) is perpendicular to the axial direction of the through-flow fan (210).

6. The panel light of claim 5, wherein the first heat dissipating assembly (220) further comprises a heat pipe (223), the heat pipe (223) is provided with a plurality of the first heat dissipating fins (222) in a penetrating manner, and a length direction of the heat pipe (223) is parallel to an axial direction of the through-flow fan (210).

7. The panel light of claim 5, wherein the heat dissipating module (200) further comprises a second heat dissipating component (230), the second heat dissipating component (230) and the circuit board component (320) are disposed on the same one of the air inlet duct (1011) and the air outlet duct (1012), the second heat dissipating component (230) comprises a second heat dissipating plate (231) and a plurality of second heat dissipating fins (232) disposed on the second heat dissipating plate (231) at intervals, the second heat dissipating plate (231) is used for transferring heat of the circuit board component (320) to the plurality of second heat dissipating fins (232), and a length direction of the second heat dissipating fins (232) is perpendicular to an axial direction of the through-flow fan (210).

8. The panel light of claim 7, wherein the second heat sink assembly (230) further comprises a flexible thermal pad (233), the flexible thermal pad (233) being sandwiched between the second heat sink plate (231) and the circuit board assembly (320).

9. The panel light according to claim 7, characterized in that the first heat dissipating plate (221) and/or the second heat dissipating plate (231) extend to be in contact with the outer wall of the cross flow fan (210) to absorb heat generated by the cross flow fan.

10. The panel light of claim 7, wherein the second heat sink assembly (230), the circuit board assembly (320), the spacer (120), the first heat sink assembly (220), and the lamp panel assembly (310) are sequentially attached in a vertical direction.

11. The panel light of any of claims 7-10, further comprising a seal (400), the seal (400) being configured to seal a gap between an edge of the fan outlet (202) and one of the first heat sink assembly (220) and the second heat sink assembly (230) disposed in the outlet air duct (1012).