Lamp rear cover and lamp using same

Abstract

The utility model relates to the technical field of lighting equipment, in particular to a rear cover of a lamp and the lamp using the rear cover of the lamp, the rear cover of the lamp is provided with an inner cavity used for containing a light-emitting element, the front side of the inner cavity is provided with a cavity opening, and the cavity opening forms a light outlet of the rear cover of the lamp; the sighting device mounting structures are used for being detachably connected with sighting devices, and at least two sighting device mounting structures are arranged in the circumferential direction of the cavity opening at intervals; the lamp mounting structure is used for being connected with a lamp mounting piece, and the lamp mounting piece is used for mounting the lamp using the lamp rear cover at a target working position; wherein the sighting device mounting structures and the lamp mounting structures are arranged at intervals so as to prevent the sighting devices from interfering with any one of the lamp mounting structures and the lamp mounting parts after the sighting devices are mounted on the lamp rear cover, and during use, the sighting device mounting structures can be selected to mount the sighting devices, so that the sighting devices can be conveniently mounted on the lamp rear cover. And the convenience and the flexibility of installing the sighting device on the lamp are improved.

Description

Technical Field

[0001] This utility model relates to the field of lighting equipment technology, specifically to a lamp back cover and a lamp using the lamp back cover. Background Technology

[0002] Floodlights and similar luminaires are used to illuminate specific areas of a site; therefore, the direction and angle of the light beam need to be adjusted during installation and use. To ensure convenience and accuracy in adjusting the beam direction, one method is to install a laser sight on the luminaire during adjustment. The laser sight emits light to simulate the beam direction of the luminaire, allowing for precise adjustment.

[0003] Taking stadium lighting as an example, in order to ensure the viewing experience for spectators and the competition experience for athletes, the stadium requires uniform illumination distribution. Due to the large area of ​​the stadium, multiple lighting fixtures are usually installed to meet the overall lighting needs of the stadium. When adjusting the illumination direction of the lighting fixtures, it is generally necessary to make specific adjustments to the light output direction of each fixture.

[0004] In practical engineering, multiple luminaires are sometimes installed side-by-side. In this case, if the laser sight mounting structure on one luminaire is located near another luminaire arranged side-by-side, it is difficult to install the laser sight on that luminaire due to the interference from the adjacent luminaire. In other situations, luminaires need to be suspended at a target location. In this case, if the laser sight mounting structure on the luminaire is located on top, it will also be affected by the interference of the mounting structure, making it difficult to install the laser sight on the luminaire. In some cases, if the lampshade at the light outlet of the luminaire is too close to the laser sight mounting structure, it can also easily affect the installation of the laser sight. Moreover, when adjusting the illumination direction of the luminaire, different situations require adjustments to the luminaire's position relative to a ground reference point. If the laser sight mounting structure and the luminaire's reference structure are not in the same location, it is difficult to install the laser sight at the reference structure. In short, current luminaires suffer from technical problems of inflexible and inconvenient laser sight installation. Utility Model Content

[0005] This utility model provides a lamp back cover and a lamp using the lamp back cover, in order to solve the technical problem that it is inconvenient and inflexible to install a sight on a lamp in the prior art.

[0006] Firstly, the lamp back cover provided by this utility model has the following features:

[0007] The inner cavity is used to house the light-emitting element, and the front side of the inner cavity has an opening, which constitutes the light outlet of the rear cover of the lamp.

[0008] A sight mounting structure for detachably connecting a sight, wherein at least two sight mounting structures are arranged at intervals around the circumference of the cavity opening;

[0009] A lamp mounting structure for connecting a lamp mounting component, the lamp mounting component being used to install a lamp using the lamp cover at a target working position;

[0010] The aiming device mounting structures are arranged at intervals from the lamp mounting structures to prevent any interference between the lamp mounting structures and the lamp mounting components and the aiming device.

[0011] In one technical solution, the lamp rear cover has a polygonal structure, and the aiming device mounting structure is distributed on at least two sides of the lamp rear cover.

[0012] In one technical solution, the projections of the aiming device mounting structure and the lamp mounting structure in the front-rear direction are arranged at circumferential intervals along the cavity opening.

[0013] In one technical solution, the aiming device mounting structure is a socket provided on the rear cover of the lamp for inserting the mounting structure on the aiming device. The rear cover of the lamp also has a positioning protrusion located at the outlet of the socket for positioning the mounting structure on the aiming device.

[0014] In one technical solution, the lamp back cover includes a cover body and a pressure plate. The inner cavity, the aiming device mounting structure, and the lamp mounting structure are located on the cover body. The cavity opening has a mounting plane for mounting a light shield. The cover body has a groove with a slot located on the mounting plane. The groove communicates with the inner cavity. One end of the pressure plate is located in the groove, and the other end extends into the inner cavity to press the light-transmitting panel. The bottom of the groove has a fixing hole for mounting the pressure plate. The groove has a pressure plate support structure for supporting the pressure plate. The pressure plate support structure is located above the bottom of the groove and is located on the side of the fixing hole away from the inner cavity. The groove depth from the opening to the pressure plate support structure is not less than the thickness of the pressure plate.

[0015] In one technical solution, the bottom of the groove has a support platform protruding toward the groove opening, and the support platform has an end plane for supporting the pressing tablet, the end plane constituting the pressing tablet support structure.

[0016] In one technical solution, the support platform is integrally connected to the side wall of the groove.

[0017] Secondly, this utility model provides a lamp, which includes a back cover and a light-emitting element disposed in the back cover, and also includes a lamp mounting component connected to the back cover, wherein the back cover is the lamp back cover described in the above-mentioned technical solutions.

[0018] In one technical solution, the lamp further includes a power module and a power fixing bracket. The power module is fixed to the lamp mounting component by the power fixing bracket, and the power fixing bracket is a die-cast structural component.

[0019] On the other hand, this utility model also provides a lamp, which includes a back cover and a light-emitting element disposed in the back cover, and a lamp mounting member connected to the back cover. The back cover is a lamp back cover with a positioning protrusion in the above-mentioned lamp back cover design. The lamp also includes a sight with a mounting structure, which includes a tongue and a spring piece arranged opposite to the tongue. The tongue is used to be inserted into the socket, and a portion of the socket wall is accommodated between the tongue and the spring piece. The tongue has a positioning recess that cooperates with the positioning protrusion.

[0020] The beneficial effects of this utility model are as follows:

[0021] In this invention, the rear cover of the lamp has at least two aiming device mounting structures, and each aiming device mounting structure is arranged at intervals from the lamp mounting structure, so that neither the lamp mounting structure nor the lamp mounting component interferes with the aiming device. The aiming device can be mounted on the rear cover of the lamp through the aiming device mounting structure. Furthermore, a suitable aiming device mounting structure can be selected to mount the aiming device according to the actual situation, thereby improving the convenience and flexibility of mounting the aiming device on the rear cover of the lamp. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the structure of one embodiment of the lamp in this utility model;

[0023] Figure 2 This is a schematic diagram of the structure of the light-emitting element installed in the cover body in one embodiment of the lamp of this utility model;

[0024] Figure 3 This is a schematic diagram of the structure of the rear cover and the pressure plate cooperating in one embodiment of the lamp fixture of this utility model;

[0025] Figure 4 This is a schematic diagram of the cover structure in one embodiment of the lamp fixture of this utility model;

[0026] Figure 5 This is a schematic diagram showing the positional relationship between the aiming device mounting structure and the lamp mounting structure on the cover in one embodiment of the lamp fixture of this utility model;

[0027] Figure 6 A schematic diagram of the aiming device in one embodiment of the lamp in this utility model;

[0028] Figure 7This is a schematic diagram of the structure of the cover body of the rear cover in one embodiment of the lamp fixture of this utility model;

[0029] Figure 8 This is a schematic diagram of the structure of the pressure plate of the back cover in one embodiment of the lamp fixture of this utility model;

[0030] Figure 9 This is a schematic diagram of the groove on the cover in one embodiment of the lamp fixture of this utility model;

[0031] Figure 10 This is a schematic diagram of the sealing and fitting structure between the light-transmitting panel and the cover in one embodiment of the lamp fixture of this utility model;

[0032] Figure 11 This is a schematic diagram of the structure of the light shield in one embodiment of the lamp in this utility model;

[0033] Figure 12 This is a schematic diagram of the crossbeam section of the bracket in one embodiment of the lamp fixture of this utility model;

[0034] Figure 13 A schematic diagram of the power supply fixing bracket in one embodiment of the lamp in this utility model.

[0035] List of feature names corresponding to the labels in the figure:

[0036] 1. Back cover; 11. Cover body; 111. Inner cavity; 112. Cavity opening; 113. Heat dissipation fins; 114. Support ring platform; 115. Mounting plane; 116. Groove; 117. Fixing hole; 118. Sunshade fixing hole; 119. Support platform; 120. Arc structure; 1121. Sealing ring; 11211. Base body; 11212. Lip sealing rib;

[0037] 12. Pressing plate; 121. Mounting hole; 122. Aiming device mounting structure; 1221. U-shaped structural component; 1222. Insertion hole; 1223. Positioning protrusion; 123. Lamp mounting structure;

[0038] 2. Translucent panel;

[0039] 3. Sunshade; 31. Flanged structure; 32. Sunshade mounting holes;

[0040] 4. Light-emitting element; 5. Power supply module;

[0041] 6. Sight; 61. Sight body; 62. Lug; 63. Shrapnel; 64. Accommodation space;

[0042] 7. Bracket; 71. First sidewall; 72. Second sidewall;

[0043] 8. Power supply mounting bracket; 81. Top wall; 82. Left side wall; 83. Right side wall; 84. End side wall; 85. Slot; 86. Intermediate plate; 87. Beam connection hole; 88. Beam mounting hole; 811. Power supply mounting hole. Detailed Implementation

[0044] The present application will now be described in further detail with reference to the accompanying drawings and specific embodiments. Similar elements in different embodiments are referred to by related similar element reference numerals. In the following embodiments, many details are described to facilitate a better understanding of the present application. However, those skilled in the art will readily recognize that some features may be omitted in different situations, or may be replaced by other elements, materials, or methods. In some cases, certain operations related to the present application are not shown or described in the specification. This is to avoid obscuring the core parts of the present application with excessive description. For those skilled in the art, detailed description of these related operations is not necessary; they can fully understand the related operations based on the description in the specification and general technical knowledge in the art.

[0045] Furthermore, the features, operations, or characteristics described in the specification can be combined in any suitable manner to form various embodiments, and the operational steps involved in each embodiment can also be rearranged or adjusted in a manner that is obvious to those skilled in the art. Therefore, the specification and drawings are only for clearly describing a particular embodiment and do not imply that they represent the necessary components and / or order.

[0046] The serial numbers assigned to components in this document, such as "first" and "second," are used only to distinguish the described objects and have no sequential or technical meaning. The terms "connection" and "linkage" used in this application, unless otherwise specified, include both direct and indirect connections (linkages).

[0047] In this invention, the lamp has at least two aiming device mounting structures. When the illumination direction of the lamp needs to be adjusted, a suitable aiming device mounting structure can be selected to install the aiming device according to the actual situation. Furthermore, when installing the aiming device, neither the lamp mounting structure nor the lamp mounting parts will interfere with the aiming device, ensuring the flexibility and convenience of installing the aiming device on the lamp.

[0048] For an embodiment of the lamp in this utility model, please refer to... Figure 1 The lamp includes a back cover 1, a light-transmitting panel 2 located at the light outlet of the back cover 1, and a light shield 3. Please refer to [reference needed]. Figure 2 , Figure 2 The light-transmitting panel 2 and the light shield 3 have been removed, from Figure 2As can be seen, the lamp also includes a light-emitting element 4 housed within the rear cover 1. In addition to the aforementioned structure, the lamp also includes a lamp mounting component and a power module 5 for mounting the lamp at the target location. The light-transmitting panel 2 can be a glass panel, or it can be a panel made of other transparent materials, such as acrylic.

[0049] Please refer to Figure 3 The rear cover 1 includes a cover body 11 and a pressure plate 12, which are combined Figure 4 The structure shown has a cover 11 with an inner cavity 111 for housing the light-emitting element 4. The inner cavity 111 has an opening 112, and the light-emitting direction of the light-emitting element 4 faces the opening 112. Thus, the opening 112 constitutes the light outlet of the lamp. Heat dissipation fins 113 are provided on the back side of the cover 11 away from the opening 112. When the lamp is working, the heat generated in the inner cavity 111 can be conducted to the heat dissipation fins 113 and dissipated to the external environment by the heat dissipation fins 113. That is, the cover 11 has a heat dissipation function, therefore, the cover 11 is also called a heat sink.

[0050] Please refer to Figure 4 The cover 11 has a sight mounting structure 122, with at least two sight mounting structures 122 spaced apart along the circumferential direction of the cavity opening 112. The cover 11 also has a lamp mounting structure 123, which connects to a lamp mounting component for mounting a lamp using the cover 1 at a target working position, such as a lamp post or eaves. The sight mounting structures 122 and lamp mounting structures 123 are spaced apart to prevent interference between the sight and either the lamp mounting structure 123 or the lamp mounting component. The lamp also includes a sight 6, which can be a laser sight or any other suitable sight 6.

[0051] In some embodiments, the cover 11 is rectangular, with aiming device mounting structures 122 provided on each of its four sides. In other embodiments, the cover 11 can also be other polygonal structures, such as pentagons or hexagons, and aiming device mounting structures 122 can be provided on any two sides of the polygonal cover 11. Of course, the cover 11 can also be circular, with at least two aiming device mounting structures 122 provided at intervals along its circumference.

[0052] Please refer to Figure 5 The projections of the aiming structure 122 and the lamp mounting structure 123 in the front-to-back direction are arranged circumferentially along the cavity opening 112, which can prevent the lamp mounting structure 123 and the lamp mounting parts connected thereto from interfering with the aiming device 6.

[0053] For the specific structural details of the sight mounting structure 122, please refer to [reference needed]. Figure 5The cover 11 includes a U-shaped structural member 1221, which forms an insertion hole 1222 in the cover 11. The cavity opening 112 is located on the front side of the cover 11. The cover 11 also includes a positioning protrusion 1223 located at the outlet of the insertion hole 1222. In one embodiment, the positioning protrusion 1223 is a circular positioning post. Here, the outlet refers to the opening through which the mounting structure of the sight is inserted from one side of the insertion hole 1222 and extends out from the other side.

[0054] The structure of the sight is as follows Figure 6 As shown, the sight 6 includes a sight body 61, which emits light to achieve aiming. The sight 6 also includes a mounting structure on the sight body 61, specifically including a tongue 62 fixed to the sight body 61, and a spring piece 63 arranged opposite to the tongue 62. There is an accommodating space 64 between the spring piece 63 and the tongue 62 to accommodate a portion of the U-shaped structure 1221. One end of the spring piece 63 at the opening of the accommodating space 64 has a V-shaped bend. When installing the sight 6, the tongue 62 is inserted into the socket 1222, and the spring piece 63 is located on the side of the U-shaped structure 1221 facing away from the socket 1222. The tongue 62 and the spring piece 63 elastically press-fit the U-shaped structure 1221 within the accommodating space 64.

[0055] Of course, the mounting structure 122 on the sight and the mounting structure on the sight 6 are not limited to this. In other embodiments, the mounting structure 122 on the cover 11 and the mounting structure on the sight 6 can be any quick-release structure applicable in the prior art. Of course, a quick-release structure may not be used. For example, the mounting structure 122 on the cover 11 can be a lug with mounting holes, and the mounting structure on the sight 6 can also be a lug with mounting holes. The sight 6 can be mounted on the cover 11 by aligning the mounting holes on the two lugs and inserting bolt and nut assemblies into the mounting holes.

[0056] In order to install the light-transmitting panel 2, such as Figure 3 and Figure 7 As shown, the cover 11 includes a support ring platform 114 located within the inner cavity 111 and near the cavity opening 112. The support ring platform 114 serves as a panel support structure to support the light-transmitting panel 2. For mounting the light shield 3, the cover 11 has a mounting plane 115 located at the cavity opening 112. During assembly, the light shield 3 is mounted on the mounting plane 115 to achieve mounting of the light shield 3 on the cover 11. Regarding the formation of the mounting plane 115, in one embodiment, the cover 11 has a flange structure at the cavity opening 112 of the inner cavity 111, and the end face of the flange structure constitutes the mounting plane 115. In other embodiments, the wall thickness of the cover 11 can be set to be relatively thick, so that the end face of the wall of the cover 11 directly constitutes the mounting plane 115.

[0057] Please refer to Figure 3 and Figure 7 The cover 11 has a groove 116 with a slot located on the mounting plane 115. The side of the groove 116 facing the inner cavity 111 is an open structure to communicate with the inner cavity 111. One end of the pressure plate 12 is located in the groove 116, and the other end extends into the inner cavity 111 to press the light-transmitting panel 2.

[0058] The bottom of the groove 116 has a fixing hole 117. Please refer to the following for details. Figure 8 The pressure plate 12 has a mounting hole 121. After the pressure plate 12 is installed in place, the mounting hole 121 and the fixing hole 117 are aligned so that the pressure plate 12 can be fixed to the cover 11 by setting threaded fasteners in the mounting hole 121 and the fixing hole 117. In one embodiment, the fixing hole 117 is a threaded blind hole, the mounting hole 117 is a smooth hole, the threaded fastener is a screw, and the mounting hole 121 is a countersunk hole. By passing the screw through the mounting hole 121 and tightening it in the fixing hole 117, the pressure plate 12 can be fixed to the cover 11. After fixing, the head of the screw is recessed in the mounting hole 121. In other embodiments, both the fixing hole 117 and the mounting hole 121 can be set as smooth holes. In this case, the threaded fastener is a bolt that passes through the fixing hole 117 and the mounting hole 121. The head of the bolt is recessed in the mounting hole 121, and the other end of the bolt cooperates with a lock nut to form a bolt-nut assembly. The pressure plate 12 is fixed to the cover 11 by the bolt-nut assembly.

[0059] The groove 116 has a pressure plate support structure for supporting the pressure plate 12. The pressure plate support structure is located higher than the bottom of the groove and closer to the groove opening. The pressure plate support structure is located on the side of the fixing hole 117 away from the inner cavity 111. The groove depth from the groove opening of the groove 116 to the pressure plate support structure is not less than the thickness of the pressure plate 12. Thus, when the pressure plate 12 is fixed to press the light-transmitting panel 2, the pressure plate 12 and the pressure plate support structure cooperate to form a lever structure. The pressure plate support structure acts as a fulcrum to support the pressure plate 12 away from the inner cavity. When the screw is tightened, as the screw is screwed into the fixing hole 117, the end of the pressure plate 12 that mates with the light-transmitting panel 2 is pressed down, pressing the light-transmitting panel 2 firmly onto the panel support structure. This prevents the end of the pressure plate 12 that mates with the light-transmitting panel 2 from tilting upwards. At the same time, since the groove opening of the groove 116 to the groove depth of the pressure plate support structure is not less than the thickness of the pressure plate 12, it can prevent the pressure plate 12 from protruding out of the groove 116, ensuring that the light shield 3 fits tightly with the mounting surface 115 and preventing light leakage.

[0060] In one embodiment, please refer to Figure 9The groove 116 has a support platform 119 protruding towards the groove opening on its bottom. The upper end surface of the support platform 119 is an end plane for supporting the pressure plate 12. The end plane is the end face of a planar structure, and it constitutes a pressure plate support structure. This allows for a large mating area between the pressure plate support structure and the pressure plate 12, providing stable support for the pressure plate 12. In other embodiments, a conical protrusion can be provided on the bottom of the groove 116, with the tip of the conical protrusion constituting the pressure plate support structure. Alternatively, a protrusion extending into the groove 116 can be provided on the side wall of the groove 116, with the portion of the protrusion mating with the pressure plate 12 constituting the pressure plate support structure.

[0061] To ensure the structural strength of the support platform 119, in one embodiment, the support platform 119 is integrally connected to the sidewall of the groove 116. Furthermore, the side of the support platform 119 facing the inner cavity 111 is transitionally connected to the sidewall of the groove 116 via an arc structure 120, thus ensuring that the support platform 119 has higher structural strength and preventing it from being crushed. Of course, in other embodiments, the support platform 119 may not be integrally connected to the sidewall of the groove 116, but may stand independently on the bottom of the groove 116.

[0062] In one embodiment, one end of the pressure plate 12 located within the groove 116 is anti-rotationally engaged with the groove wall of the groove 116. Specifically, the end of the pressure plate 12 located within the groove 116 has multiple planar sides, and the shape of the groove 116 is adapted to the shape of this end of the pressure plate 12. This prevents the pressure plate 12 from rotating around the screw, ensuring that the pressure plate 12 is stably and reliably pressed against the light-transmitting panel 2. Furthermore, the shape of the end of the pressure plate 12 located within the groove 116 and the end that engages with the light-transmitting panel 2 are different. Thus, when installing the pressure plate 12, it is possible to identify which end is installed in the groove 116, improving the convenience of the assembly operation.

[0063] For lighting fixtures used in certain applications, a high level of sealing is required. Therefore, a sealing structure needs to be provided between the light-transmitting panel 2 and the cover 11. In one embodiment, this is based on the annular closed structure of the supporting ring platform 114, such as... Figure 10 As shown, the lamp also includes a sealing ring 1121 press-fitted between the light-transmitting panel 2 and the support ring 114. The light-transmitting panel 2 is pressed against the support ring 114 by the pressure plate 12, and the light-transmitting panel 2 can deform the sealing ring 1121, thus achieving a seal between the light-transmitting panel 2 and the support ring 114. For the specific structure of the sealing ring 1121, please refer to [reference needed] in one embodiment. Figure 10The sealing ring 1121 includes a base 11211, which has a plane facing the light-transmitting panel 2. The plane has two spaced-apart lip-shaped sealing ribs 11212. The large deformation of the lip-shaped sealing ribs 11212 ensures a more reliable seal between the light-transmitting panel 2 and the support ring 114, thus achieving a highly reliable sealing fit between the light-transmitting panel 2 and the panel support structure.

[0064] The structure of the light shield 3 is as follows Figure 11 As shown, the light shield 3 has a U-shaped bent plate structure. At the end that mates with the cover 11, it has a flange structure 31. The flange structure 31 mates with the mounting surface. After assembly, the flange structure 31 of the light shield 3 covers the retaining screw of the fixing plate 12 at the groove opening of the groove 116, preventing the screw of the fixing plate 12 from accidentally loosening. The flange structure 31 of the light shield 3 has a light shield mounting hole 32. Correspondingly, the mounting plane 115 of the cover 11 has a light shield fixing hole 118 for fixing the light shield 3. The light shield fixing hole 118 is a threaded hole. By inserting a screw into the light shield mounting hole 32 and screwing it into the light shield fixing hole 118, the light shield 3 can be fixed to the cover 11. For ease of installation, the light shield mounting hole 32 is an elongated hole to facilitate alignment with the light shield fixing hole 118.

[0065] Please refer to Figure 1 The lamp mounting component is a bracket 7 connected to the cover 11. The power module 5 is fixed on the bracket 7 by a power fixing bracket 8. The power fixing bracket 8 is a die-cast structural component. Compared with traditional sheet metal parts, die-cast structural components are lighter and less prone to rust, while also having high strength, which enables the power module 5 to be reliably installed on the bracket 7.

[0066] For details, please refer to Figure 12 The support 7 has a crossbeam section with a U-shaped cross section and a first sidewall 71 and a second sidewall 72 arranged at intervals. The middle part has a reinforcing rib on the back.

[0067] Please refer to Figure 13The power supply fixing bracket 8 includes a top wall 81, a left side wall 82, a right side wall 83, and an end side wall 84. The left side wall 82 and right side wall 83 are connected to the left and right sides of the top wall 81, forming a U-shaped structure. The end side wall 84 blocks one end of the U-shaped structure formed by the left side wall 82, right side wall 83, and top wall 81. Slots 85 are correspondingly provided on the left side wall 82 and right side wall 83. The power supply fixing bracket 8 also includes an intermediate plate 86 connected between the left side wall 82 and right side wall 83. The intermediate plate 86 is located on the side of the slot 85 closest to the end side wall 84, and one side wall of the intermediate plate 86 is flush with the side wall of the slot 85. The end of the intermediate plate 86 away from the top wall 81 is flush with the end faces of the left side wall 82 and right side wall 83. The ends of the left side wall 82 and right side wall 83 away from the end side wall 84 are straight inclined surfaces sloping towards the top wall 81.

[0068] The side of the top wall 81 facing away from the left side wall 82 and the right side wall 83 is a power mounting surface for installing the power module 5. Specifically, the top wall 81 is provided with a power mounting hole 811 for installing the power module 5.

[0069] Beam connection holes 87 are provided on the end sidewall 84 and the intermediate plate 86. The beam connection holes 87 are threaded holes. Correspondingly, beam mounting holes 88 are provided on the first sidewall 71 and the second sidewall 72. During installation, the opening of the power supply fixing bracket 8 is opposite to the opening of the crossbeam section. The opening of the power supply fixing bracket 8 refers to the opening of the U-shaped structure surrounded by the top wall 81, the left sidewall 82, and the right sidewall 83. The opening of the crossbeam section refers to the U-shaped opening of the crossbeam section. The first sidewall 71 is inserted into the slot 85, and the beam mounting hole 88 on the first sidewall 71 is adjacent to and aligned with the beam connection hole 87 on the intermediate plate 86. The beam mounting hole 88 on the second sidewall 72 is adjacent to and aligned with the beam connection hole 87 on the end sidewall 84. The power supply fixing bracket 8 is fixed to the crossbeam section by screwing screws into the adjacent beam mounting holes 88 and beam connection holes 87. In other embodiments, the structure of the power supply fixing bracket 8 can be changed, as long as it can meet the requirement of fixing the power module 5 on the bracket 7.

[0070] This utility model also provides a lamp back cover, which has the same structure as the back cover in the various embodiments of the lamp described above, and will not be described again here.

[0071] The above-described specific examples are for illustrative purposes only and are not intended to limit the scope of this invention. Those skilled in the art to which this invention pertains can make various simple deductions, modifications, or substitutions based on the concept of this invention.

Claims

1. A luminaire rear cover, characterized by Having: an inner cavity for accommodating a light emitting element, the inner cavity having a cavity opening at a front side, the cavity opening constituting a light outlet of the lamp rear cover; an aiming device mounting structure for detachably connecting an aiming device, at least two of the aiming device mounting structures being spaced apart around a circumference of the cavity opening; a lamp mounting structure for connecting a lamp mounting member, the lamp mounting member being used for mounting a lamp having the lamp rear cover at a target working position; wherein each of the aiming device mounting structures is spaced apart from the lamp mounting structure to prevent any one of the lamp mounting structure and the lamp mounting member from interfering with the aiming device.

2. The luminaire cover of claim 1, wherein, The lamp rear cover is a polygonal structure, and the aiming device mounting structures are distributed on at least two edges of the lamp rear cover.

3. The luminaire cover of claim 1 or 2, wherein, Projections of the aiming device mounting structures and the lamp mounting structure in a front-rear direction are spaced apart around the circumference of the cavity opening.

4. The luminaire cover of claim 1 or 2, wherein, The aiming device mounting structure is a socket provided on the lamp rear cover for insertion of a mounting structure on the aiming device, and the lamp rear cover further has a positioning protrusion at an outlet of the socket for positioning the mounting structure on the aiming device.

5. The luminaire cover of claim 1 or 2, wherein, The lamp rear cover comprises a cover body and a pressing sheet, the inner cavity, the aiming device mounting structure and the lamp mounting structure are located on the cover body, the cover body has a mounting plane at the cavity opening for mounting a light shield cover, the cover body has a slot opening a recess on the mounting plane, the recess is in communication with the inner cavity, one end of the pressing sheet is located in the recess, and the other end of the pressing sheet extends into the inner cavity for pressing a light transmission panel at the light outlet, the recess has a fixing hole in a groove bottom for mounting the pressing sheet, and the recess has a pressing sheet supporting structure for supporting the pressing sheet, the pressing sheet supporting structure is located at a position higher than the groove bottom and closer to the slot opening, the pressing sheet supporting structure is located on a side of the fixing hole away from the inner cavity, and a groove depth from the slot opening to the pressing sheet supporting structure is not less than a thickness of the pressing sheet.

6. The luminaire cover of claim 5, wherein, The recess has a support platform protruding towards the slot opening on the groove bottom, the support platform has an end plane for supporting the pressing sheet, and the end plane constitutes the pressing sheet supporting structure.

7. The luminaire cover of claim 6, wherein, The support platform is integrated with a side wall of the recess.

8. A luminaire characterized by, The lamp comprises a rear cover and a light emitting element arranged in the rear cover, further comprises a lamp mounting member connected with the rear cover, and the rear cover is the lamp rear cover according to any one of claims 1-7.

9. The luminaire of claim 8, wherein, The lamp further comprises a power supply module and a power supply fixing support, the power supply module is fixed on the lamp mounting member through the power supply fixing support, and the power supply fixing support is a die-casting structure.

10. A luminaire characterized by, The lamp comprises a rear cover and a light emitting element arranged in the rear cover, further comprises a lamp mounting member connected with the rear cover, and the rear cover is the lamp rear cover according to claim 4, the lamp further comprises an aiming device, the aiming device has a mounting structure, the mounting structure comprises a plug and a spring sheet arranged opposite to the plug, the plug is used for being inserted into the socket, a part of a hole wall of the socket is accommodated between the plug and the spring sheet, and the plug has a positioning recess matched with the positioning protrusion.

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