Heat dissipation shell and mining lamp

Abstract

A plurality of cooling fins are arranged at the top of the heat dissipation shell, a plurality of first ventilation openings are formed in the periphery of the heat dissipation shell, a containing groove is formed in the bottom of the heat dissipation shell, the heat dissipation shell further comprises a heat dissipation structure stretching into the containing groove, and the heat dissipation structure is arranged in the containing groove. The heat dissipation structure is provided with a second ventilation opening extending in the axial direction of the heat dissipation shell. According to the scheme, the heat dissipation structure which extends into the containing groove and is provided with the second ventilation opening is arranged on the heat dissipation shell, so that the functional part installed in the containing groove can dissipate heat in the center of the functional part in time; and premature light attenuation and even complete failure of the light source close to the center due to temperature aggregation can be avoided.

Description

TECHNICAL FIELD

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

[0002] The mining lamp is an indoor high space lighting product, and the power required is large. The heat dissipation shell where the light source cavity is located is thin and generates a large amount of heat. The existing heat dissipation mode of the mining lamp mainly is to set multiple hollow structures at the edge of the shell and set heat dissipation fins at the back of the shell. However, when the mining lamp works, the LED light source at the center position is far away from the edge of the shell, and the heat is easy to gather here to generate a heat island effect, so that the LED light source at the center position is easy to fade prematurely or even completely fail. On the other hand, the heat dissipation effect of the heat dissipation fins is also limited. The LED light source in the light source cavity and the power supply directly above it generate heat at the same time, and the heat is superimposed and not easy to dissipate quickly. The temperature of the light source cavity is conducted to the power supply, which also causes the temperature of the power supply to rise continuously and be easy to fail.

[0003] Therefore, it is necessary to provide a heat dissipation shell and a mining lamp with better heat dissipation effect. CONTENT OF THE INVENTION

[0004] In view of the deficiencies of the prior art, the purpose of the present application is to provide a heat dissipation shell and a mining lamp with better heat dissipation effect, so as to improve the service life of the lamp.

[0005] According to the embodiment of the present application, the first scheme is provided: a heat dissipation shell, the top of the heat dissipation shell is provided with multiple heat dissipation fins, the periphery of the heat dissipation shell is provided with multiple first ventilation openings, the bottom of the heat dissipation shell is provided with a receiving groove, the heat dissipation shell further includes a heat dissipation structure extending into the receiving groove, and the heat dissipation structure is provided with a second ventilation opening extending along the axial direction of the heat dissipation shell.

[0006] In a preferred scheme, the heat dissipation structure is arranged at the middle part of the heat dissipation shell, and multiple first ventilation openings are located at the outer periphery of the receiving groove.

[0007] In a preferred scheme, the heat dissipation structure includes an outer cylinder and a framework, the framework is connected to the inner wall of the outer cylinder, and multiple second ventilation openings are formed in the gaps of the framework.

[0008] In a preferred scheme, the outer cylinder includes a first end face at the top, the framework includes a second end face at the top, and the first end face is higher than the second end face.

[0009] In a preferred embodiment, a plurality of the fins extend radially outwardly from the heat dissipation housing, the height of the inward end of the fins gradually decreases in the inward direction, and the top of the outer cylinder is lower than the top of the inward end of the fins.

[0010] In a preferred embodiment, the heat dissipation housing comprises a mounting plate provided with a mounting opening, the fins are fixed to the top of the mounting plate, the receiving groove is located at the bottom of the mounting plate, the heat dissipation structure comprises a clamping portion provided at the top thereof and an abutting portion extending radially at the bottom thereof, and the clamping portion passes through the mounting opening and is clamped with the mounting plate.

[0011] In another aspect of the present application, a mining lamp is also provided, which comprises the heat dissipation housing according to any one of the above embodiments and a lighting assembly mounted in the receiving groove, the lighting assembly is provided with an avoiding opening for avoiding the heat dissipation structure.

[0012] In a preferred embodiment, the heat dissipation structure extends through the lighting assembly in the axial direction of the heat dissipation housing, the lighting assembly comprises a lamp plate, an LED light source provided at the bottom of the lamp plate, and a lens located at the bottom of the LED light source, and the lamp plate and the lens are both provided with the avoiding opening.

[0013] In a preferred embodiment, the lighting assembly further comprises a grid light controller, the grid light controller is located at the bottom of the lens, the grid light controller is also provided with the avoiding opening, the lens is provided with a plurality of convex portions protruding towards the bottom, the convex portions correspond to the positions of the LED light source, the grid light controller is provided with a plurality of hexagonal honeycomb-shaped through holes, and the through holes correspond to the positions of the convex portions.

[0014] In a preferred embodiment, the mining lamp further comprises a power supply box, the power supply box is fixed to one side of the top of the heat dissipation housing, and the power supply box is spaced apart from the heat dissipation structure.

[0015] The present application has the following beneficial effects:

[0016] In the embodiments of the present application, the heat dissipation structure with the second ventilation opening extending into the receiving groove is arranged on the heat dissipation housing, so that the functional component mounted in the receiving groove can timely dissipate the heat at the center thereof, and when the functional component is a lighting assembly, the light source near the center can be prevented from being prematurely faded or even completely disabled due to temperature accumulation. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 FIG. 1 is a perspective view of a mining lamp according to an embodiment of the present application;

[0018] Figure 2A structure schematic view of the heat dissipation shell according to an embodiment of the present application is shown in the figure.

[0019] Figure 3 A structure schematic view of the heat dissipation shell according to an embodiment of the present application is shown in the figure.

[0020] Figure 4 A sectional view of the heat dissipation shell according to an embodiment of the present application is shown in the figure.

[0021] Figure 5 An exploded structure schematic view of the lighting assembly according to an embodiment of the present application is shown in the figure.

[0022] The figure shows: 10, heat dissipation shell; 11, heat dissipation fin; 12, first ventilation opening; 13, accommodating groove; 14, mounting plate; 141, mounting opening; 20, lighting assembly; 21, avoiding opening; 22, lamp plate; 23, LED light source; 24, lens; 241, protruding part; 25, grating light controller; 251, through hole; 26, first sealing ring; 27, second sealing ring; 30, heat dissipation structure; 31, second ventilation opening; 32, outer cylinder; 321, first end surface; 33, framework; 331, second end surface; 34, abutting part; 35, buckle part; 40, power supply box. DETAILED DESCRIPTION

[0023] In order to make the skilled in the art better understand the technical solutions in the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, not all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by the skilled in the art without creative labor are within the scope of protection of the present application.

[0024] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another component, it can be directly on the other component or indirectly disposed on the other component; when a component is referred to as being "connected to" another component, it can be directly connected to the other component or indirectly connected to the other component.

[0025] It should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "vertical", "top", "bottom", "inner", "outer" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or component referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application.

[0026] In addition, the terms "first", "second", etc. are used only for descriptive purposes and should not be construed as implying or suggesting relative importance or an indicated number of technical features. Thus, the features defined as "first", "second", etc. can explicitly or implicitly include one or more of the features. In the description of the present application, the meaning of "a plurality of" is two or more, unless otherwise explicitly and specifically limited.

[0027] It should be understood that the structures, proportions, sizes, etc. shown in the drawings of the present application are only used to understand and read the disclosed content by those skilled in the art, and do not define the limiting conditions for the implementation of the present application, so they do not have technical significance. Any modification of the structure, change of the proportion relationship or adjustment of the size, which does not affect the effect and purpose that can be achieved by the present application, should still fall within the scope of the technology disclosed by the present application.

[0028] Please refer to Figures 2 to 4 The present application provides a heat dissipation shell 10, the top of the heat dissipation shell 10 is provided with a plurality of heat dissipation fins 11, the periphery of the heat dissipation shell 10 is provided with a plurality of first ventilation openings 12, and the bottom of the heat dissipation shell 10 is provided with a receiving groove 13. When the heat dissipation shell 10 is applied to a lamp, the receiving groove 13 can be used to accommodate the lighting assembly 20 of the lamp, the plurality of heat dissipation fins 11 provided on the top of the heat dissipation shell 10, and the plurality of first ventilation openings 12 provided on the periphery of the heat dissipation shell 10 can realize heat dissipation of the lighting assembly 20.

[0029] Because the light source in the central position is far away from the periphery of the heat dissipation shell 10, heat is easily accumulated at this position to cause a heat island effect, so that the light source in the central position is prone to premature light decay or even complete failure. To further improve the heat dissipation effect, the heat dissipation shell 10 further includes a heat dissipation structure 30 extending into the receiving groove 13, wherein the heat dissipation structure 30 is provided with a second ventilation opening 31 extending along the axial direction of the heat dissipation shell 10, and the second ventilation opening 31 can form a convection heat dissipation to avoid the formation of a heat island effect at the middle of the lighting assembly 20. Correspondingly, the lighting assembly 20 can be provided with an avoiding opening 21 avoiding the heat dissipation structure 30.

[0030] In the present embodiment, by providing the heat dissipation structure 30 extending into the receiving groove 13 and having the second ventilation opening 31 on the heat dissipation shell 10, the heat at the center of the functional part installed in the receiving groove 13 can be dissipated in time, and when the functional part is the lighting assembly 20, the light source near the center can be prevented from premature light decay or even complete failure due to temperature accumulation.

[0031] In a preferred embodiment, the heat dissipation structure 30 is arranged at the middle of the heat dissipation shell 10, and the plurality of first ventilation openings 12 are located at the outer periphery of the receiving groove 13.

[0032] In one possible embodiment, the second vent 31 on the heat dissipation structure 30 can only have one.

[0033] In one preferred embodiment, to further improve the heat dissipation effect of the heat dissipation structure 30, the second vent 31 on the heat dissipation structure 30 has multiple. Wherein, the heat dissipation structure 30 includes an outer cylinder 32 and a skeleton 33, the skeleton 33 is connected to the inner wall of the outer cylinder 32, and multiple second vents 31 are formed in the gaps of the skeleton 33. The arrangement of multiple second vents 31 can greatly increase the contact area with air, thereby improving the heat dissipation effect.

[0034] Specifically, multiple second vents 31 can be arranged circumferentially. Wherein, reference can be made to Figure 2 There can be some second vents 31 distributed circumferentially on the outer circle of the skeleton 33, and one second vent 31 is formed at the center of the skeleton 33. Of course, as in Figure 3 , there are three circles of second vents 31 distributed inside and outside. Wherein, the second vent 31 arranged at the center position can also be used to install other functional parts.

[0035] It can be understood that when there are other heat sources on the top of the heat dissipation shell 10, the heat sources on the top and in the accommodation groove 13 can affect each other, causing one of them to overheat and reducing the service life. For example, when the heat dissipation shell 10 is applied to a mining lamp, there is a lighting assembly 20 in the accommodation groove 13 at the bottom, and there can also be a power box 40 on the top.

[0036] In one preferred embodiment, to reduce the mutual influence of heat between the two heat sources on both sides of the heat dissipation shell 10, the heat dissipation structure 30 is further designed as follows: reference can be made to Figure 4 , the outer cylinder 32 includes a first end face 321 at the top, the skeleton 33 includes a second end face 331 at the top, and the first end face 321 is higher than the second end face 331.

[0037] In one preferred embodiment, to reduce the mutual influence of heat between the two heat sources on both sides of the heat dissipation shell 10, the heat dissipation structure 30 is further designed as follows: reference can be made to Figure 4 , multiple heat dissipation fins 11 extend outward along the radial direction of the heat dissipation shell 10, and the height of the inward end of the heat dissipation fin 11 gradually decreases in the inward direction, and the top of the outer cylinder 32 is lower than the top of the inward end of the heat dissipation fin 11, thereby forming a structure with low middle and high periphery.

[0038] It can be understood that based on the design of the second vent 31 of the heat dissipation structure 30 connecting the space on both sides of the heat dissipation shell 10, there can be the following two implementation ways:

[0039] In one implementation, reference can be made to Figure 2The heat dissipation structure 30 and the heat dissipation housing 10 can be integrally arranged.

[0040] In a specific embodiment, the heat dissipation housing 10 comprises a mounting plate 14, the heat dissipation fins 11 are fixed on the top of the mounting plate 14, the receiving groove 13 is located at the bottom of the mounting plate, and the heat dissipation structure 30 is integrally arranged with the mounting plate 14.

[0041] In another embodiment, the heat dissipation structure 30 and the heat dissipation housing 10 can be integrally arranged. Figure 3 The heat dissipation structure 30 and the heat dissipation housing 10 can be integrally arranged.

[0042] In a preferred embodiment, the heat dissipation structure 30 and the heat dissipation housing 10 can be integrally arranged. Figure 3 The heat dissipation structure 30 and the heat dissipation housing 10 can be integrally arranged. Figure 4 The heat dissipation structure 30 and the heat dissipation housing 10 can be integrally arranged. The heat dissipation structure 30 and the heat dissipation housing 10 can be integrally arranged.

[0043] Specifically, a plurality of buckle portions 35 are uniformly distributed on the top of the heat dissipation structure 30 in the circumferential direction, and the buckle portion 35 has a certain deformation ability. When the buckle portion 35 passes through the mounting port 141 of the heat dissipation housing 10, the buckle portion 35 will be folded to the middle, and when the buckle portion 35 passes through the mounting port 141, the buckle portion 35 will be buckled on the top of the mounting plate 14.

[0044] In an embodiment, a mining lamp provided with the heat dissipation housing 10 is also provided, and the mining lamp comprises the heat dissipation housing 10 and the lighting assembly 20 mounted in the receiving groove 13. The lighting assembly 20 is provided with an avoiding port 21 for avoiding the heat dissipation structure 30.

[0045] In some feasible embodiments, one end of the heat dissipation structure 30 extends into the light source cavity of the lighting assembly 20, so that the second ventilation port 31 is in communication with the space of the light source cavity. The heat in the light source cavity can directly flow out from the top of the heat dissipation housing 10 through the second ventilation port 31.

[0046] In a preferred embodiment, in order to improve the waterproof performance of the mining lamp, the second ventilation port 31 is not in communication with the space of the light source cavity. Referring to Figure 1 The heat dissipation structure 30 penetrates the lighting assembly 20 along the axial direction of the heat dissipation housing 10, so that the second ventilation port 31 is exposed at the bottom of the lighting assembly 20. Air can form a convection between the top of the heat dissipation housing 10 and the bottom of the lighting assembly 20. The heat dissipation structure 30 and the heat dissipation housing 10 can be integrally arranged.

[0047] In one embodiment, reference can be made to Figure 5 The lighting assembly 20 comprises a lamp plate 22, an LED light source 23 arranged at the bottom of the lamp plate 22, and a lens 24 arranged at the bottom of the LED light source 23, and the lamp plate 22 and the lens 24 are both provided with an avoiding opening 21, so that the heat dissipation structure 30 can pass through the lighting assembly 20. Preferably, the lamp plate 22 is an aluminum substrate.

[0048] When the heat dissipation structure 30 and the heat dissipation shell 10 are designed in a split type, the bottom of the heat dissipation structure 30 can be provided with an abutting portion 34, and the top of the abutting portion 34 abuts against the bottom of the lens 24.

[0049] In one specific embodiment, reference can be made to Figure 4 The lighting assembly 20 further comprises a grating light control device 25 arranged at the bottom of the lens 24, which can be used for dimming and anti-glare effect, and the grating light control device 25 is also provided with an avoiding opening 21 for the heat dissipation structure 30 to pass through. The lens 24 is provided with a plurality of protruding portions 241 protruding towards the bottom, and the protruding portions 241 correspond to the positions of the LED light source 23. The protruding portions 241 can be used for dimming of the LED light source 23. The grating light control device 25 is provided with a plurality of hexagonal honeycomb-shaped through holes 251, and the through holes 251 correspond to the positions of the protruding portions 241.

[0050] In one preferred embodiment, in order to improve the waterproof performance of the industrial and mining lamp, reference can be made to Figure 4 The lighting assembly 20 further comprises a first sealing ring 26 and a second sealing ring 27, which are arranged between the lamp plate 22 and the lens 24. The LED light source 23 is distributed between the first sealing ring 26 and the second sealing ring 27, and the second sealing ring 27 is located between the first sealing ring 26 and the avoiding opening 21. The first sealing ring 26 is used for sealing the outer ring portion, and the second sealing ring 27 is used for sealing the inner ring portion, so as to prevent water from entering the light source cavity. In this regard, the top surface of the lens 24 is also provided with an outer ring groove for mounting the first sealing ring 26 and an inner ring groove for mounting the second sealing ring 27.

[0051] In one preferred embodiment, in order to further improve the heat dissipation effect, the top of the lighting assembly 20 is further provided with a heat-conducting silica gel, which connects the mounting plate 14 of the heat dissipation shell 10 and the lamp plate 22, so that the heat of the lighting assembly 20 is more easily conducted to the heat dissipation fins 11 at the top of the heat dissipation shell 10.

[0052] In a specific embodiment, the industrial and mining lamp further comprises a power box 40, which is fixed to one side of the top of the heat dissipation shell 10 and is spaced apart from the heat dissipation structure 30. The power box 40 can be mounted on the top of the heat dissipation shell 10 by a support, so as to be spaced apart from the heat dissipation structure 30, thereby reducing the mutual influence of heat between the power box 40 and the lighting lamp.

[0053] In a specific embodiment, the industrial and mining lamp further comprises a hanging component, which can be used to suspend and install the lamp at a high place. The hanging component can be a hanging ring provided on the top of the power box 40 as shown in the drawings, or can be a suspension support connected to the heat dissipation shell 10. Figure 1

[0054] The above description of the disclosed embodiments enables those skilled in the art to carry out or use the present application. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present application. Therefore, the present application will not be limited to the embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.​

Claims

1. A heat dissipation housing, a top of the heat dissipation housing is provided with a plurality of heat dissipation fins, a periphery of the heat dissipation housing is provided with a plurality of first ventilation openings, characterized in that, The bottom of the heat dissipation shell is provided with a receiving groove, the heat dissipation shell further comprises a heat dissipation structure extending into the receiving groove, and the heat dissipation structure is provided with a second vent extending along the axial direction of the heat dissipation shell.

2. The heat dissipating enclosure of claim 1, wherein, The heat dissipation structure is arranged at the middle part of the heat dissipation shell, and a plurality of the first vents are located at the outer periphery of the receiving groove.

3. The heat dissipating enclosure of claim 1, wherein, The heat dissipation structure comprises an outer cylinder and a framework, the framework is connected to the inner wall of the outer cylinder, and a plurality of the second vents are formed in the gaps of the framework.

4. The heat dissipating enclosure of claim 3, wherein, The outer cylinder comprises a first end face at the top, the framework comprises a second end face at the top, and the first end face is higher than the second end face.

5. The heat dissipating enclosure of claim 3, wherein, A plurality of the fins extend radially outwardly along the heat dissipation shell, the height of the inward end of the fins gradually decreases in the inward direction, and the top of the outer cylinder is lower than the top of the inward end of the fins.

6. The heat dissipating housing according to any one of claims 1 to 5, characterized in that The heat dissipation shell comprises a mounting plate provided with a mounting opening, the fins are fixed to the top of the mounting plate, the receiving groove is located at the bottom of the mounting plate, the heat dissipation structure comprises a buckle portion at the top thereof and an abutting portion at the bottom thereof extending radially, the buckle portion passes through the mounting opening and is buckled with the mounting plate.

7. A luminaire, characterized by The heat dissipation shell comprises a heat dissipation shell as claimed in any one of claims 1-6, and a lighting assembly mounted in the receiving groove, the lighting assembly is provided with a avoiding opening avoiding the heat dissipation structure.

8. A luminaire according to claim 7, characterised in that The heat dissipation structure extends through the lighting assembly along the axial direction of the heat dissipation shell, the lighting assembly comprises a lamp plate, an LED light source arranged at the bottom of the lamp plate, and a lens located at the bottom of the LED light source, the lamp plate and the lens are both provided with the avoiding opening.

9. A luminaire according to claim 8, characterised in that The lighting assembly further comprises a grating light control device, the grating light control device is located at the bottom of the lens, the grating light control device is also provided with the avoiding opening, the lens is provided with a plurality of convex portions protruding towards the bottom, the convex portions correspond to the positions of the LED light source, the grating light control device is provided with a plurality of hexagonal honeycomb-shaped through holes, and the through holes correspond to the positions of the convex portions.

10. A luminaire as claimed in any one of claims 7 to 9, characterised in that, The mining lamp further comprises a power supply box, the power supply box is fixed to one side of the top of the heat dissipation shell, and the power supply box is spaced apart from the heat dissipation structure.

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