Lamp

Abstract

The utility model belongs to the technical field of lighting equipment, and particularly relates to a lamp. The lamp comprises a lamp holder assembly, a lamp cover assembly, a lamp cover assembly and a lamp cover assembly, wherein the lamp cover assembly is provided with a light-emitting side and a back side; the driving assembly comprises a shell, a driver and a cover plate, a containing space with an opening is formed in the shell, the driver is installed in the containing space, and the opening is covered with the cover plate in a sealed mode; wherein the shell is detachably connected to the back side, an opening faces the back side, and the cover plate is a part made of heat insulation materials. According to the technical scheme, the problem that heat generated by light emitting work of an LED light source in an existing lamp is transmitted and acts to influence a driver, and consequently the driver is abnormal at high temperature is solved.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of lighting devices, and particularly relates to a lamp. BACKGROUND

[0002] The projection lamp comprises a lamp head assembly and a driving assembly, the driving assembly is electrically connected with the lamp head assembly, and is used for providing electric energy to drive the LED light source of the lamp head assembly to emit light.

[0003] In some projection lamps, the driving assembly is mounted in the shell of the lamp head assembly, that is, the driving assembly and the LED light source of the lamp head assembly are located in the same space. This causes the heat generated by the light emitting work of the LED light source to directly affect the driver of the driving assembly, causing the driver to abnormally high temperature, and then causing the projection lamp to malfunction.

[0004] In other projection lamps, the lamp head assembly and the driving assembly are respectively provided with shells, and the shell of the driving assembly is attached and assembled on the back side of the shell of the lamp head assembly. Compared with the assembly mode in which the driving assembly is mounted in the shell of the lamp head assembly, although the heat generated by the light emitting work of the LED light source of the lamp head assembly no longer directly affects the driver of the driving assembly, the heat generated by the LED light source is sequentially transmitted through the shell of the lamp head assembly and the shell of the driving assembly, and finally a large amount of heat is still transmitted to the driver of the driving assembly, thereby causing the driver to abnormally high temperature and causing the projection lamp to malfunction. CONTENT OF THE UTILITY MODEL

[0005] The application aims to provide a lamp, which aims to solve the problem that the heat generated by the light emitting work of the LED light source in the current lamp is transmitted and affects the driver, causing the driver to abnormally high temperature.

[0006] To achieve the above-mentioned purpose, the technical scheme adopted by the application is as follows: a lamp, comprising:

[0007] A lamp head assembly has a light emitting side and a back side opposite to the light emitting side;

[0008] A driving assembly comprises a shell, a driver and a cover plate, the shell forms an accommodation space with an opening, the driver is installed in the accommodation space, and the cover plate is sealed and closed to the opening;

[0009] Among them, the shell is detachably connected to the back side, the opening faces the back side, and the cover plate is a component made of heat insulation material.

[0010] In some embodiments of the application, the shell comprises a shell main body and a plurality of connecting legs, the plurality of connecting legs are connected to the outer side wall of the shell main body close to the opening, the plurality of connecting legs are distributed at intervals, the plurality of connecting legs are detachably connected to the back side, and the cover plate is arranged at intervals with the back side.

[0011] In some embodiments of the present application, the open end of the shell body is spaced apart from the back side.

[0012] In some embodiments of the present application, the lamp head assembly comprises a back shell and a light source component, the light source component is installed in the back shell, the light source component is electrically connected with the driver, the back shell has a light outlet, the side of the back shell away from the light outlet is the back side, and the back shell is a component made of metal material.

[0013] In some embodiments of the present application, the back side is provided with a plurality of spaced apart heat dissipation fins, the plate surface of the heat dissipation fins is substantially parallel to the arrangement direction of the lamp head assembly and the driving assembly, and the open end and the cover plate are both spaced apart from the heat dissipation fins.

[0014] In some embodiments of the present application, the cover plate is a heat insulation glass plate, and the heat insulation glass plate is fixedly sealed and bonded to the opening by structural glue.

[0015] In some embodiments of the present application, the cover plate is provided with a threading hole, a sealing sleeve is installed in the threading hole, and the electric wire electrically connected between the light source component and the driver is threaded in the sealing sleeve.

[0016] In some embodiments of the present application, the accommodating space is filled with sealing glue, and the sealing glue wraps the driver.

[0017] In some embodiments of the present application, the shell is a component made of metal material; or, the shell is a component made of plastic.

[0018] In some embodiments of the present application, the lamp is a projection lamp for outdoor projection lighting. Of course, if necessary, the lamp of the present application can also be used for indoor lighting.

[0019] The present application has at least the following beneficial effects:

[0020] The lamp of the present application is used for outdoor projection lighting. Since the driving assembly comprises a shell and a cover plate, the shell is covered with the cover plate to form a closed accommodating space for installing the driver of the driving assembly, i.e. the driver is installed in an independent and closed accommodating space relative to the lamp head assembly. In this way, the heat generated inside the lamp head assembly cannot directly act on the driver. Further, the cover plate sealingly covering the opening of the shell is a component made of heat insulation material, which can further reduce the heat of the lamp head assembly transmitted to the driver of the driving assembly. In this way, the heat of the lamp head assembly transmitted to the driver of the driving assembly is greatly reduced, thereby ensuring that the driver can always be in the normal working temperature range and improving the reliability of the lamp. BRIEF DESCRIPTION OF DRAWINGS

[0021] To more clearly illustrate the technical solutions in the embodiments of this application, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0022] Figure 1 This is a perspective view of the lamps according to an embodiment of this application;

[0023] Figure 2 for Figure 1 The diagram shown is a front view of the lighting fixture;

[0024] Figure 3 for Figure 2 A top view of the lighting fixture is shown.

[0025] Figure 4 for Figure 1 The diagram shows the disassembled lighting fixture. Figure 1 ;

[0026] Figure 5 for Figure 1 The diagram shows the disassembled lighting fixture. Figure 2 ;

[0027] Figure 6 for Figure 2 Cross-sectional view along the AA direction;

[0028] Figure 7 for Figure 3 Cross-sectional view along the middle BB direction;

[0029] Figure 8 for Figure 6 Enlarged diagram of point C in the middle.

[0030] The figures in the diagram are labeled as follows:

[0031] 10. Lamp head assembly; 11. Light-emitting side; 12. Rear side; 121. Heat sink fins; 101. Back cover; 102. Light source component; 1021. LED light source; 1022. Lens; 103. Light outlet;

[0032] 20. Drive assembly; 21. Housing; 211. Receiving space; 212. Opening; 213. Housing body; 214. Connecting feet; 22. Driver; 221. Wire; 23. Cover plate; 231. Wiring hole;

[0033] 30. Structural adhesives;

[0034] 40. Sealing sleeve;

[0035] 50. Sealing and potting;

[0036] 60, lug structure;

[0037] 71, bolt. DETAILED DESCRIPTION

[0038] Embodiments of the present application are described below in detail with reference to the accompanying drawings, in which like or similar elements are denoted by the same or similar reference signs, and examples of the embodiments are shown in the drawings. The embodiments described below are examples for explaining the present application and are not intended to be limiting to the present application.

[0039] In the description of the present application, it is to be understood that the orientations or positional relationships indicated by the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like are based on the orientations or positional relationships shown in the drawings, and are merely intended to facilitate the description of the present application and simplify the description, and therefore cannot be understood as indicating or implying that the devices or elements indicated must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application.

[0040] In addition, the terms "first", "second", and the like are used only for the purpose of description, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the technical features indicated. Therefore, the features defined with "first", "second", and the like can explicitly or implicitly include one or more of the features. In the description of the present application, the meaning of "plurality" is two or more, unless otherwise explicitly specified and limited.

[0041] In the present application, unless otherwise explicitly specified and limited, the terms "mounting", "connection", "connection", "fixing" and the like should be understood broadly, for example, can be fixed connection, can also be detachable connection, or integral; can be mechanical connection, can also be electrical connection; can be directly connected, can also be indirectly connected through an intermediate medium; can be the internal communication of two elements or the interaction relationship between two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0042] As Figures 1 to 7As shown, the lamp provided by the embodiment of the present application comprises a lamp head assembly 10 and a driving assembly 20. The lamp head assembly 10 has a light emitting side 11 and a back side 12 opposite to the light emitting side 11, and the driving assembly 20 comprises a housing 21, a driver 22 and a cover plate 23. The housing 21 forms an accommodating space 211 with an opening 212, the driver 22 is installed in the accommodating space 211, and the cover plate 23 is sealingly and coveringly arranged on the opening 212. The housing 21 is detachably connected to the back side 12, the opening 212 faces the back side 12, and the cover plate 23 is a component made of heat insulation material.

[0043] The lamp provided by the embodiment of the present application is used for outdoor light projection. Since the driving assembly 20 comprises the housing 21 and the cover plate 23, the housing 21 and the cover plate 23 are coveringly arranged to form a closed accommodating space 211 for installing the driver 22 of the driving assembly 20, that is, the driver 22 is installed in the independent and closed accommodating space 211 relative to the lamp head assembly 10. In this way, the heat generated in the lamp head assembly 10 has to be transferred to the housing 21 of the driving assembly 20 through the shell of the lamp head assembly 10 and then to the driver 22 in the accommodating space 211 through the housing 21, that is, the heat generated in the lamp head assembly 10 no longer directly acts on the driver 22. Further, the cover plate 23 sealingly and coveringly arranged on the opening 212 of the housing 21 is a component made of heat insulation material, and the cover plate 23 made of heat insulation material has low heat conduction efficiency for heat transfer and can even block the heat transfer to the driver 22 in the accommodating space 211. In this way, the heat generated in the lamp head assembly 10 can be further reduced when transferred to the driver 22 of the driving assembly 20. The driver 22 is almost only affected by the heat generated by its own work, and the heat generated by the work of the driver 22 can be transferred to the air outside the housing 21 to dissipate heat, so as to ensure that the driver 22 can always be in a normal working temperature range, thereby improving the reliability of the lamp.

[0044] In the lamp provided by the embodiment of the present application, as shown in Figure 4 and Figure 5As shown, the shell 21 comprises a shell body 213 and a plurality of connecting legs 214, the plurality of connecting legs 214 are connected to the outer side wall of the shell body 213 close to the opening 212, and the plurality of connecting legs 214 are spaced apart. When the driving assembly 20 is connected and fixed to the back side 12 of the lamp cap assembly 10, the plurality of connecting legs 214 are detachably connected and fixed to the back side 12 through one-to-one corresponding plurality of bolts 71. And, the cover plate 23 is spaced apart from the back side 12, that is, there is an air gap between the plate surface of the cover plate 23 and the back side 12 of the lamp cap assembly 10, and the heat transfer efficiency of air as a heat transfer medium for heat transfer is low, so as to reduce the heat of the lamp cap assembly 10 from the back side 12 to the cover plate 23 of the driving assembly 20, and reduce the heat transferred to the driver 22 in the containing space 211.

[0045] In the lamp of the embodiment of the present application, the end edge of the opening 212 of the shell body 213 of the shell 21 of the driving assembly 20 is spaced apart from the back side 12. That is, there is an air gap between the end edge of the opening 212 of the shell body 213 of the shell 21 of the driving assembly 20 and the back side 12 of the lamp cap assembly 10, and the heat transfer efficiency of air as a heat transfer medium for heat transfer is low, so as to reduce the heat of the lamp cap assembly 10 from the back side 12 to the shell 21 of the driving assembly 20, and reduce the heat transferred to the driver 22 in the shell 21.

[0046] As shown, Figures 4 to 7 The lamp cap assembly 10 comprises a back shell 101 and a light source member 102, the light source member 102 is installed on the back shell 101, and the light source member 102 is electrically connected with the driver 22 through the electric wire 221. And, the back shell 101 has a light outlet 103, and the side of the back shell 101 away from the light outlet 103 is the back side 12. Specifically, the light source member 102 comprises an LED light source 1021 and a lens 1022 (the lens 1022 is a diffusion plate), the LED light source 1021 is located in the back shell 101, and the lens 1022 is located at the light outlet 103. In the lamp cap assembly 10, the LED light source 1021 is locked on the inner wall of the back side 12 facing the light outlet 103 through a screw, and the LED light source 1021 abuts against the inner wall of the back side 12, and the LED light source 1021 is electrically connected with the driver 22 through the electric wire 221. The connecting legs 214 of the shell 21 of the driving assembly 20 are locked on the outer wall of the back side 12 through the bolts 71. Among them, the back shell 101 is a component made of metal material, and since the thermal conductivity coefficient of the metal material is high, it is a good heat transfer medium for heat transfer. When the light source member 102 is powered on to generate heat, the heat can be quickly transferred to the back shell 101, and then the back shell 101 continues to transfer the heat outward (mainly to the air in the external environment to dissipate heat and cool down), so as to achieve the purpose of dissipating heat and cooling the light source member 102.

[0047] In order to further improve the heat dissipation capacity of the back shell 101 and ensure that the light source component 102 is always in a suitable working temperature range, the back side 12 is provided with a plurality of spaced heat dissipation fins 121, and the plate surface of the heat dissipation fins 121 is substantially parallel to the arrangement direction of the lamp holder assembly 10 and the driving assembly 20. Figures 1 to 7 As shown in the figure, the back side 12 is provided with a plurality of spaced heat dissipation fins 121, and the plate surface of the heat dissipation fins 121 is substantially parallel to the arrangement direction of the lamp holder assembly 10 and the driving assembly 20. The plurality of spaced heat dissipation fins 121 increase the air contact area between the back shell 101 and the external environment, and the spacing between adjacent two heat dissipation fins 121 is conducive to air flow, which can carry away more heat transferred to the heat dissipation fins 121, thereby improving the heat dissipation efficiency. Further, the end edge of the opening 212 and the cover plate 23 are spaced apart from the heat dissipation fins 121. There is an air gap between the end edge of the opening 212 and the back side 12 of the lamp holder assembly 10, and the heat transfer efficiency of air as a heat conduction medium is relatively low, thereby reducing the heat transfer from the back side 12 of the lamp holder assembly 10 to the housing 21 of the driving assembly 20, and reducing the heat transferred to the driver 22 in the housing 21. Further, there is an air gap between the plate surface of the cover plate 23 and the back side 12 of the lamp holder assembly 10, and the heat transfer efficiency of air as a heat conduction medium is relatively low, thereby further reducing the heat transfer from the back side 12 of the lamp holder assembly 10 to the cover plate 23 of the driving assembly 20, and further reducing the heat transferred to the driver 22 in the containing space 211.

[0048] In the lamp provided by the embodiment of the present application, the cover plate 23 is a heat insulation glass plate, which has the ability to reflect heat and can reduce the heat transferred to the driver 22 in the containing space 211. Further, the heat insulation glass plate is tempered, thereby improving the strength and rigidity of the heat insulation glass plate, and the heat insulation glass plate is not easy to break, thereby improving the durability of the heat insulation glass plate. The heat insulation glass plate is preferably a transparent glass plate, which can clearly observe the appearance of the driver 22 in the containing space 211, thereby judging whether the driver 22 fails. Further, as shown in the figure, Figure 8As shown, the cover plate 23 is fixedly bonded to the opening 212 by structural adhesive 30. The structural adhesive 30 has high bonding strength and rigidity, and is used to form a structural bonding effect for connecting and bonding various materials. The structural adhesive 30 also has good weather resistance, can maintain stable performance in different environmental conditions indoors and outdoors; the structural adhesive 30 has good chemical resistance, can effectively resist corrosion and erosion; the structural adhesive 30 has good heat resistance, can maintain stability at high temperature environment, and is not easy to melt or soften; the structural adhesive 30 has water resistance, can work in a humid environment, and is not easily affected by moisture. Therefore, the structural adhesive 30 is used to bond the cover plate 23 to the opening 212, which not only can well adapt to the lighting scene indoors and outdoors, but also can always maintain excellent bonding performance, ensure that the cover plate 23 will not fall off from the opening 212, and ensure the sealing performance of the cover plate 23 and the periphery of the opening 212, preventing water vapor from entering the containing space 211 to cause short circuit of the driver 22.

[0049] As shown in Figure 4 , Figure 5 and Figure 7 , the cover plate 23 is provided with a wire hole 231 for threading the electric wire 221 to electrically connect the driver 22 and the light source member 102. In order to effectively seal the wire hole 231, as shown in Figures 4 to 7 , a sealing sleeve 40 is installed on the wire hole 231, and the electric wire 221 electrically connected between the light source member 102 and the driver 22 is threaded through the sealing sleeve 40. Specifically, when the connecting leg 214 of the housing 21 is locked on the outer wall of the back side 12 of the back shell 101 by the bolt 71, there is a gap between the outer wall of the back side 12 of the back shell 101 and the plate surface of the cover plate 23, and the sealing sleeve 40 is located in the gap. Continue to tighten the bolt 71 so that the back side 12 and the cover plate 23 together extrude the sealing sleeve 40, thereby achieving good sealing effect of the through hole of the back side 12 for threading out the electric wire 221 and the wire hole 231 of the cover plate 23.

[0050] In order to further improve the waterproof performance of the driver 22 in the containing space 211, as shown in Figure 6 and Figure 7 , the containing space 211 is filled with sealing glue 50, and the sealing glue 50 wraps the driver 22. In this way, even if water vapor enters the containing space 211, the water vapor is blocked by the sealing glue 50 and cannot contact the driver 22, ensuring that the driver 22 will not be short-circuited by contacting water vapor. Moreover, since the sealing glue 50 wraps the driver 22, the assembly position of the driver 22 in the containing space 211 is more stable, reducing the possibility of disconnection of the line joint of the driver 22 caused by external impact vibration, and improving the reliability of the driver 22.

[0051] In the lamp of the embodiment of the present application, the shell 21 is a component made of metal material, preferably aluminum alloy material, which is firm and durable, and the aluminum alloy material is light in weight, which is beneficial to reduce the overall weight of the lamp. Alternatively, the shell 21 is a component made of plastic, which is light in weight, and thus the overall weight of the lamp is reduced.

[0052] Preferably, the lamp provided by the embodiment of the present application is a spotlight lamp for outdoor spotlight lighting, which can be used for spotlighting trees, or for spotlighting the outer wall of a building. As shown in Figures 1 to 7 The lamp further comprises an ear structure 60 connected to the back shell 101, and the whole lamp is installed to a fixed body (the fixed body includes but is not limited to the ground, the wall, the lamp pole, etc.) at the lighting scene through the ear structure 60.

[0053] Of course, if necessary, the lamp of the present application can also be used for indoor lighting.

[0054] The above only describes the preferred embodiments of the present application and is not intended to limit the present application. Any modification, equivalent replacement and improvement made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A luminaire characterized by, The lamp comprises: a lamp head assembly (10) having a light emitting side (11) and a back side (12) opposite to the light emitting side (11); a driving assembly (20) comprising a housing (21), a driver (22) and a cover plate (23), the housing (21) forms a containing space (211) having an opening (212), the driver (22) is installed in the containing space (211), and the cover plate (23) is sealed and covers the opening (212); wherein the housing (21) is detachably connected to the back side (12), the opening (212) faces the back side (12), and the cover plate (23) is a component made of a heat insulation material.

2. The lamp according to claim 1, wherein the housing (21) comprises a shell body (213) and a plurality of connecting legs (214), the plurality of connecting legs (214) are connected to the shell body (213) near the outer side wall of the opening (212), the plurality of connecting legs (214) are spaced apart, the plurality of connecting legs (214) are detachably connected to the back side (12), and the cover plate (23) is spaced apart from the back side (12).

3. The lamp according to claim 2, wherein an end edge of the opening (212) of the shell body (213) is spaced apart from the back side (12).

4. The lamp according to claim 3, wherein the lamp head assembly (10) comprises a back shell (101) and a light source component (102), the light source component (102) is installed in the back shell (101), the light source component (102) is electrically connected to the driver (22), the back shell (101) has a light emitting port (103), a side of the back shell (101) away from the light emitting port (103) is the back side (12), and the back shell (101) is a component made of a metal material.

5. The lamp according to claim 4, wherein the back side (12) is provided with a plurality of spaced apart heat dissipation fins (121), a plate surface of the heat dissipation fin (121) is substantially parallel to the arrangement direction of the lamp head assembly (10) and the driving assembly (20), and an end edge of the opening (212) and the cover plate (23) are both spaced apart from the heat dissipation fin (121).

6. The lamp according to any one of claims 4-5, wherein the cover plate (23) is a heat insulation glass plate, and the heat insulation glass plate is fixedly sealed and bonded to the opening (212) by a structural adhesive (30).

7. The lamp according to claim 6, wherein the cover plate (23) is provided with a threading hole (231), a sealing sleeve (40) is installed in the threading hole (231), and an electric wire (221) electrically connecting the light source component (102) and the driver (22) is arranged in the sealing sleeve (40).

8. The lamp according to claim 7, wherein The accommodating space (211) is filled with a sealing glue (50) which wraps the driver (22).

9. The luminaire of claim 8, wherein, The shell (21) is a component made of metal material. Alternatively, the shell (21) is a component made of plastic.

10. The luminaire of claim 9, wherein, The luminaire is a floodlight for outdoor flood lighting.

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