Luminaire control device and luminaire

Abstract

This utility model discloses a lighting control device and a lighting fixture, relating to the field of lighting technology. The lighting control device includes a housing, comprising a main body and a rear cover. A mounting groove is provided on one side of the main body, and a positioning hole is provided on the side wall of the mounting groove. The rear cover is disposed within the main body. A mounting bracket is disposed within the mounting groove and is used to connect with external parts. The mounting bracket has at least one first mounting portion. A positioning member is provided, through which the main body is fastened to the first mounting portion of the mounting bracket via the positioning member passing through the positioning hole. The technical effect of this utility model is that by using a mounting bracket pre-installed on the lighting fixture, the mounting bracket is snapped into the mounting groove, and the positioning member passes through the positioning hole on the main body and is fastened against the first mounting portion on the mounting bracket, thereby improving the stability of the connection between the lighting control device and the lighting fixture.

Description

Technical Field

[0001] This utility model relates to the field of lighting technology, and in particular to a lighting control device and a lighting fixture. Background Technology

[0002] Currently, military vehicle-mounted lights are widely used on military command vehicles or transport vehicles to provide high-brightness illumination for nighttime driving and field operations of motor vehicle units. The lights are electrically connected to a lighting control device, making it easier for users to adjust the brightness. However, existing lighting control devices have poor stability when mounted on the lights; vibrations generated during vehicle movement can easily cause the control device to detach from the light, thus affecting the use of the lights. Utility Model Content

[0003] The main purpose of this utility model is to provide a lighting control device and a lighting fixture, which aims to improve the stability of the connection between the lighting control device and the lighting fixture.

[0004] To achieve the above objectives, the present invention proposes a lighting control device, comprising a housing, including a housing body and a rear cover. The housing body has a mounting groove on one side, and the side wall of the mounting groove has at least one positioning hole. The rear cover is disposed on the housing body and forms a mounting cavity with the housing body, with the rear cover spaced apart from the positioning hole. A control component is disposed in the mounting cavity, and the rear cover has a wire-passing hole for a wire to pass through and electrically connect to the control component. The control component is used for electrical connection with a lighting fixture. A mounting bracket, at least a portion of which is disposed within the mounting groove and located outside the rear cover, is used for connection to external parts and has at least one first mounting portion. A positioning member is provided, through which the housing body passes through the positioning hole and is securely connected to the first mounting portion of the mounting bracket.

[0005] In one embodiment, the control component includes a circuit board, the housing body includes a base plate and a frame surrounding the base plate, the base plate has a second mounting portion, the frame and the second mounting portion form a mounting groove, the mounting groove extends along the perimeter of the frame, the rear cover is disposed on the second mounting portion so that the rear cover and the second mounting portion form a mounting cavity, and the circuit board is disposed in the mounting cavity.

[0006] In one embodiment, the frame has a first sidewall and a second sidewall disposed opposite to each other along a first direction, both the first sidewall and the second sidewall having the positioning hole; the mounting bracket has a third sidewall and a fourth sidewall disposed opposite to each other along the first direction, both the third sidewall and the fourth sidewall having the first mounting portion; the positioning member passes through the positioning hole of the first sidewall and is engaged in the first mounting portion of one of the third sidewall and the fourth sidewall; the positioning member passes through the positioning hole of the second sidewall and is engaged in the first mounting portion of the other of the third sidewall and the fourth sidewall.

[0007] In one embodiment, a third mounting portion is provided on the inner wall of the second mounting portion along the second direction. The third mounting portion extends along the perimeter of the frame. The length of the third mounting portion along the second direction is less than the length of the second mounting portion along the second direction. The rear cover is disposed on the second mounting portion and abuts against the third mounting portion. The first direction intersects the second direction.

[0008] In one embodiment, the third mounting portion includes a first connecting segment and a second connecting segment connected to each other. The length of the first connecting segment along the second direction is greater than the length of the second connecting segment along the second direction. The circuit board is mounted on the second connecting segment and abuts against the first connecting segment. The rear cover is disposed on the first connecting segment.

[0009] In one embodiment, the second mounting portion protrudes from the base plate along the second direction, and the second mounting portion extends along the perimeter of the frame, with the length of the second mounting portion along the second direction being greater than the length of the frame along the second direction.

[0010] In one embodiment, the positioning member includes a head, a first fastening section, and a second fastening section connected to each other. The radius of the second fastening section gradually decreases along the axial direction of the positioning member and toward the end away from the head. The first fastening section passes through the positioning hole, and the second fastening section is fastened to the first mounting part.

[0011] In one embodiment, the lighting control device further includes a first fastener, and the inner wall of the mounting cavity is provided with a mounting post. The first fastener passes through the rear cover and the mounting post to securely connect the rear cover and the second mounting part.

[0012] And / or, the lighting control device further includes a second fastener, the mounting bracket having a first mounting hole, the second fastener being used to pass through the first mounting hole on the mounting bracket for mounting the mounting bracket inside the lighting fixture.

[0013] In one embodiment, the lighting control device further includes a knob assembly, the housing body having a second mounting hole on the side opposite to the mounting groove, the knob assembly being rotatably inserted through the second mounting hole, and the knob assembly being electrically connected to the circuit board.

[0014] This utility model also proposes a lamp, including a lamp control device as described in any of the above embodiments.

[0015] The technical solution of this utility model improves the stability of the connection between the lamp control device and the lamp by using a mounting bracket pre-installed on the lamp, with at least part of the mounting bracket snapped into the mounting groove, and then using a positioning member that passes through the positioning hole on the main body of the shell and is fastened to the first mounting part on the mounting bracket. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, 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 utility model. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0017] Figure 1 A schematic diagram of the structure of an embodiment of the lighting control device provided by this utility model;

[0018] Figure 2 An exploded structural diagram of an embodiment of the lighting control device provided by this utility model;

[0019] Figure 3 A schematic diagram of the housing structure in one embodiment of the lighting control device provided by this utility model;

[0020] Figure 4 A schematic diagram of the positioning component in one embodiment of the lighting control device provided by this utility model.

[0021] Explanation of icon numbers:

[0022] 1. Housing; 11. Housing body; 111. Mounting groove; 1111. Positioning hole; 112. Base plate; 1121. Second mounting part; 1122. Third mounting part; 1123. First connecting section; 1124. Second connecting section; 113. Frame; 1131. First side wall; 1132. Second side wall; 114. Second mounting hole; 12. Rear cover; 121. Mounting cavity; 1211. Mounting post; 122. Wire hole; 2. Circuit board; 3. Mounting bracket; 31. First mounting part; 32. Third side wall; 33. Fourth side wall; 34. First mounting hole; 4. Positioning component; 41. Head; 42. First fastening section; 43. Second fastening section; 5. First fastener; 51. Second fastener; 6. Knob.

[0023] The realization of the purpose, functional features and advantages of this utility model will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present utility model.

[0025] It should be noted that if the embodiments of this utility model involve directional indicators (such as up, down, left, right, front, back, etc.), the directional indicators are only used to explain the relative positional relationship and movement of the components in a specific posture. If the specific posture changes, the directional indicators will also change accordingly.

[0026] Furthermore, if the embodiments of this utility model involve descriptions such as "first" or "second," these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the use of "and / or" or "and / or" throughout the text includes three parallel solutions. For example, "A and / or B" includes solution A, solution B, or a solution where both A and B are satisfied simultaneously. Furthermore, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.

[0027] This utility model proposes a lighting control device.

[0028] Please see Figures 1 to 4 In one embodiment of this utility model, the lighting control device includes a housing 1, a control component, a mounting bracket 3, and a positioning component 4. The housing 1 includes a main body 11 and a rear cover 12. A mounting groove 111 is provided on one side of the main body 11, and at least one positioning hole 1111 is provided on the side wall of the mounting groove 111. The rear cover 12 is disposed on the main body 11 and forms a mounting cavity 121 with the main body 11. The rear cover 12 and the positioning hole 1111 are spaced apart. The control component is disposed on the mounting bracket 3. The cavity 121, the rear cover 12 is provided with a wire hole 122 for the wire to pass through and be electrically connected to the control component, the control component is used to be electrically connected to the lamp; at least part of the mounting bracket 3 is provided in the mounting groove 111 and located outside the rear cover 12, the mounting bracket 3 is used to connect to external parts, the mounting bracket 3 is provided with at least one first mounting part 31; the shell body 11 is fastened to the first mounting part 31 of the mounting bracket 3 through the positioning member 4 passing through the positioning hole 1111.

[0029] The technical solution of this utility model improves the stability of the connection between the lamp control device and the lamp by using a mounting bracket 3 pre-installed on the lamp, with at least part of the mounting bracket 3 snapped into the mounting groove 111, and then the positioning member 4 passes through the positioning hole 1111 on the shell body 11 and is fastened to the first mounting part 31 on the mounting bracket 3.

[0030] In this embodiment, the lighting control device also includes an indicator light. The housing body 11 may have a third mounting hole on the side opposite to the mounting groove 111. The indicator light is mounted on the side of the housing body 11 opposite to the rear cover 12 through the third mounting hole, allowing the user to easily identify whether the lighting fixture is on. To improve the sealing of the control component installed within the housing 1, this application uses a rear cover 12 to cover the housing body 11, so that the rear cover 12 and the housing body 11 enclose and form a mounting cavity 121. The mounting cavity 121 is used for the installation of the control component, avoiding interference from external environmental factors. The lighting control device also includes a wire guard ring. The rear cover 12 has a wire hole 122 on the side opposite to the housing 1. During production, the control component is installed in the mounting cavity 121, and the wire guard ring is fitted onto the wall of the wire hole 122. The wires on the lighting fixture extend into the mounting cavity 121 through the wire guard ring and the wire hole 122 to electrically connect with the control component, facilitating the electrical connection between the control component and the lighting fixture. This application sets the rear cover 12 and the positioning hole 1111 at intervals, so that the mounting groove 111 is located between the frame 113 of the housing body 11 and the rear cover 12, so that the mounting bracket 3 can be installed between the rear cover 12 and the frame 113 of the housing body 11, thereby allowing the housing 1 to be installed and connected to the lamp via the mounting bracket 3. This application improves the stability of the connection between the lamp control device and the lamp by pre-installing the mounting bracket 3 on the lamp, and then using positioning members 4 to pass through the positioning holes 1111 on the housing body 11 and fasten to the first mounting part 31 on the mounting bracket 3. Compared with the prior art where the mounting bracket 3 is fastened to the housing 1 by a snap-fit ​​method, this application can prevent the lamp control device from falling off the lamp due to vibration during vehicle operation. In one embodiment, the positioning member 4 can be a pin, bolt, or screw.

[0031] like Figure 1 and Figure 2 As shown, in one embodiment, the control component includes a circuit board 2, the housing body 11 includes a base plate 112 and a frame 113 surrounding the base plate 112, the base plate 112 is provided with a second mounting portion 1121, the frame 113 and the second mounting portion 1121 form a mounting groove 111, the mounting groove 111 extends along the perimeter of the frame 113, the rear cover 12 covers the second mounting portion 1121 so that the rear cover 12 and the second mounting portion 1121 form a mounting cavity 121, and the circuit board 2 is disposed in the mounting cavity 121.

[0032] In this embodiment, the circuit board 2 is used for electrical connection of the lamp. The user inputs an operation command to the control component to form a first signal. The circuit board 2 controls the brightness of the lamp according to the first signal, so that the user can adjust the brightness of the lamp in real time according to the actual situation, making it more convenient for the user to adjust the brightness of the lamp through the lamp control device.

[0033] In this embodiment, a second mounting portion 1121 may protrude from one side of the base plate 112, so that a mounting groove 111 is formed between the frame 113 and the second mounting portion 1121, thereby clamping the mounting bracket 3 between the frame 113 and the second mounting portion 1121. The shell body 11 and the mounting bracket 3 are fastened together by the positioning member 4, thereby improving the stability of the connection between the mounting bracket 3 and the shell 1. Both the mounting bracket 3 and the second mounting portion 1121 can be provided with a polygonal annular structure, and the type of the mounting groove 111 can be set as an annular groove, which improves the stability of the connection between the mounting bracket 3, the frame 113 and the second mounting portion 1121.

[0034] like Figure 2 As shown, in one embodiment, the frame 113 has a first sidewall 1131 and a second sidewall 1132 disposed opposite to each other along a first direction. The first sidewall 1131 and the second sidewall 1132 have the positioning hole 1111. The mounting bracket 3 has a third sidewall 32 and a fourth sidewall 33 disposed opposite to each other along the first direction. The third sidewall 32 and the fourth sidewall 33 are provided with the first mounting portion 31. The positioning member 4 passes through the positioning hole 1111 of the first sidewall 1131 and is engaged in the first mounting portion 31 of the third sidewall 32. Alternatively, the positioning member 4 passes through the positioning hole 1111 of the second sidewall 1132 and is engaged in the first mounting portion 31 of the fourth sidewall 33.

[0035] In this embodiment, the first direction can be consistent with the left-right direction. The frame 113 has a first sidewall 1131 and a second sidewall 1132 arranged opposite to each other along the first direction. The mounting bracket 3 has a third sidewall 32 and a fourth sidewall 33 arranged opposite to each other along the first direction. The first sidewall 1131 can correspond to one of the third sidewall 32 and the fourth sidewall 33, and the second sidewall 1132 can correspond to the other of the third sidewall 32 and the fourth sidewall 33. Both the first sidewall 1131 and the second sidewall 1132 have positioning holes 1111, and both the third sidewall 32 and the fourth sidewall 33 have first mounting portions 31. The positioning member 4 can be inserted through the positioning hole 1111 of the first side wall 1131 and engaged in the first mounting part 31 of one of the third side wall 32 or the fourth side wall 33. Alternatively, the positioning member 4 can be inserted through the positioning hole 1111 of the second side wall 1132 and engaged in the first mounting part 31 of the other of the third side wall 32 or the fourth side wall 33, so that the mounting bracket 3 is securely connected to the housing 1, thereby further improving the stability of the connection between the housing 1 and the mounting bracket 3.

[0036] In this embodiment, the third direction can be consistent with the vertical direction, and the first direction, the second direction, and the third direction intersect each other in pairs. The frame 113 has a fifth sidewall (not shown) and a sixth sidewall (not shown) arranged opposite each other along the third direction, and the mounting bracket 3 has a seventh sidewall (not shown) and an eighth sidewall (not shown) arranged opposite each other along the third direction. The fifth sidewall can correspond to one of the seventh and eighth sidewalls, and the sixth sidewall can correspond to the other of the seventh and eighth sidewalls. Both the fifth and sixth sidewalls have positioning holes 1111, and both the seventh and eighth sidewalls have first mounting portions 31. The positioning element 4 can be inserted through the positioning hole 1111 in the fifth side wall and engaged in the first mounting part 31 of one of the seventh or eighth side walls. Alternatively, the positioning element 4 can be inserted through the positioning hole 1111 in the sixth side wall and engaged in the first mounting part 31 of the other of the seventh or eighth side wall, so that the mounting bracket 3 and the housing 1 are both securely connected by the positioning element 4, thereby ensuring a secure connection between the mounting bracket 3 and the housing 1 and further improving the stability of the connection between the housing 1 and the mounting bracket 3.

[0037] like Figure 2 and Figure 3 As shown, in one embodiment, the inner wall of the second mounting portion 1121 is provided with a third mounting portion 1122 along the second direction. The third mounting portion 1122 extends along the perimeter of the frame 113. The length of the third mounting portion 1122 along the second direction is less than the length of the second mounting portion 1121 along the second direction. The rear cover 12 covers the second mounting portion 1121 and abuts against the third mounting portion 1122. The first direction intersects with the second direction.

[0038] In this embodiment, the second direction can be consistent with the front-rear direction. A third mounting portion 1122 is provided on the inner wall of the mounting cavity 121 along the second direction. The third mounting portion 1122 can be arranged along the perimeter of the frame 113, so that the shape of the third mounting portion 1122 is a polygonal ring structure, thereby adapting the shape of the third mounting portion 1122 to the shape of the connecting portion on the rear cover 12, improving the stability of the connection between the rear cover 12 and the third mounting portion 1122. This application limits the length of the third mounting portion 1122 in the second direction to be smaller than the length of the second mounting portion 1121, so that the mounting cavity 121 is divided into a first mounting cavity 121 and a second mounting cavity 121 that are interconnected. The first mounting cavity 121 is located above the second mounting cavity 121. The first mounting cavity 121 is used for mounting the rear cover 12, and the second mounting cavity 121 is used for mounting the control components.

[0039] like Figure 3As shown, in one embodiment, the third mounting part 1122 includes a first connecting segment 1123 and a second connecting segment 1124 that are connected to each other. The length of the first connecting segment 1123 along the second direction is greater than the length of the second connecting segment 1124 along the second direction. The circuit board 2 is mounted on the second connecting segment 1124 and abuts against the first connecting segment 1123. The rear cover 12 is disposed on the first connecting segment 1123.

[0040] In this embodiment, the second direction can be consistent with the front-rear direction. This application employs a third mounting portion 1122 comprising a first connecting segment 1123 and a second connecting segment 1124 connected to each other. By setting the length of the first connecting segment 1123 along the second direction to be greater than the length of the second connecting segment 1124 along the second direction, the first connecting segment 1123 and the second connecting segment 1124 are connected along the second direction to form a stepped third mounting portion 1122, thereby improving the stability of the connection between the rear cover 12 and the circuit board 2 and the shell body 11. The circuit board 2 is mounted on the second connecting segment 1124, and one end of the circuit board 2 abuts against the first connecting segment 1123. The rear cover 12 is placed on the first connecting segment 1123.

[0041] like Figure 3 As shown, in one embodiment, the second mounting portion 1121 protrudes from the base plate 112 along the second direction, the second mounting portion 1121 extends along the perimeter direction of the frame 113, and the length of the second mounting portion 1121 along the second direction is greater than the length of the frame 113 along the second direction.

[0042] In this embodiment, the second mounting portion 1121 extends along the perimeter of the frame 113, so that both the mounting bracket 3 and the second mounting portion 1121 can be configured as polygonal annular structures. The mounting groove 111 can be configured as an annular groove, which facilitates the installation of the mounting bracket 3 and the shell body 11. This application limits the length of the second mounting portion 1121 along the second direction to be greater than the length of the frame 113 along the second direction, so that a mounting groove 111 is formed between the second mounting portion 1121 and the frame 113, and a mounting cavity 121 is formed between the second mounting portion 1121 and the rear cover 12, which facilitates the installation of the control component in the mounting cavity 121 within the second mounting portion 1121. The mounting bracket 3 is installed between the second mounting portion 1121 and the frame 113, which improves the space utilization of the shell 1 and the stability of the connection between the mounting bracket 3 and the shell 1.

[0043] like Figure 4As shown, in one embodiment, the positioning member 4 includes a head 41, a first fastening section 42 and a second fastening section 43 connected to each other. The radius of the second fastening section 43 gradually decreases along the axial direction of the positioning member 4 and toward the end away from the head 41. The first fastening section 42 passes through the positioning hole 1111 and the second fastening section 43 is fastened to the first mounting part 31.

[0044] In this embodiment, the positioning member 4 may include a head 41 for the user to screw on, a first fastening section 42 for fastening the positioning member 4 to the positioning hole 1111, and a second fastening section 43 for fastening the positioning member 4 to the first mounting part 31. To improve the stability of the positioning member 4 connected to the housing 1 and the mounting bracket 3 respectively, the radius of the second fastening section 43 gradually decreases along the axial direction of the positioning member 4 and toward the end away from the head 41. The first mounting part 31 may be configured as a groove to increase the contact area between the second fastening section 43 and the first mounting part 31, thereby improving the stability of the connection between the second fastening section 43 and the first mounting part 31.

[0045] like Figure 1 and Figure 2 As shown, in one embodiment, the lighting control device further includes a first fastener 5, and the inner wall of the mounting cavity 121 is provided with a mounting post 1211. The first fastener 5 passes through the rear cover 12 and the mounting post 1211 so as to fasten the rear cover 12 and the second mounting part 1121.

[0046] And / or, the lighting control device further includes a second fastener 51, the mounting bracket 3 having a first mounting hole 34, the second fastener 51 being used to pass through the first mounting hole 34 on the mounting bracket 3 so that the mounting bracket 3 can be installed inside the lighting fixture.

[0047] In this embodiment, the present application employs a first fastener 5 passing through the rear cover 12 and the mounting post 1211 to securely mount the rear cover 12 onto the mounting post 1211, further improving the stability of the connection between the rear cover 12 and the housing body 11. The mounting bracket 3 may have multiple first mounting holes 34, and the lamp control device further includes multiple second fasteners 51. The multiple second fasteners 51 are respectively used to pass through the first mounting holes 34 on the mounting bracket 3 and the connection holes on the lamp, so that the mounting bracket 3 is pre-installed inside the lamp, improving the stability of the connection between the mounting bracket 3 and the lamp, thereby making the lamp control device more stably mounted on the lamp. In one embodiment, the first fastener 5 and the second fastener 51 may be positioning elements 4 such as pins, bolts, or screws.

[0048] like Figure 2As shown, in one embodiment, the lighting control device further includes a knob 6 assembly. The housing body 11 has a second mounting hole 114 on the side opposite to the mounting groove 111. The knob 6 assembly is rotatably inserted through the second mounting hole 114 and is electrically connected to the circuit board 2.

[0049] In this embodiment, the lighting control device further includes a knob 6 assembly, which may include a knob 6 and a potentiometer (not shown) electrically connected to the circuit board 2. The knob 6 passes through the second mounting hole 114 and is rotatably connected to the potentiometer, so that the knob 6 is electrically connected to the circuit board 2 through the potentiometer, so that the knob 6 is located outside the housing 1, thereby making it more convenient for the user to adjust the brightness of the lighting fixture.

[0050] This utility model also proposes a lamp, which includes a lamp control device. The specific structure of the lamp control device is as described in the above embodiments. Since this lamp adopts all the technical solutions of all the above embodiments, it has at least all the beneficial effects brought about by the technical solutions of the above embodiments, which will not be described in detail here.

[0051] The above description is merely an exemplary embodiment of the present utility model and does not limit the patent scope of the present utility model. Any equivalent structural transformations made based on the technical concept of the present utility model and the contents of the present utility model specification and drawings, or direct / indirect applications in other related technical fields, are included within the patent protection scope of the present utility model.

Claims

1. A lighting control device, characterized in that, include: The housing includes a housing body and a rear cover. A mounting groove is provided on one side of the housing body, and at least one positioning hole is provided on the side wall of the mounting groove. The rear cover is disposed on the housing body and surrounds the housing body to form a mounting cavity. The rear cover and the positioning hole are spaced apart. A control component is disposed in the mounting cavity. The rear cover has a wire hole for a wire to pass through and be electrically connected to the control component. The control component is used to be electrically connected to the lamp. The mounting bracket, at least a portion of which is disposed within the mounting groove and located outside the rear cover, is used for connection with external parts, and is provided with at least one first mounting portion; The positioning element is used to fasten the shell body to the first mounting part of the mounting bracket through the positioning hole.

2. The lighting control device as described in claim 1, characterized in that, The control component includes a circuit board, the housing body includes a base plate and a frame surrounding the base plate, the base plate is provided with a second mounting part, the frame and the second mounting part form a mounting groove, the mounting groove extends along the perimeter of the frame, the rear cover is disposed on the second mounting part so that the rear cover and the second mounting part form a mounting cavity, and the circuit board is disposed in the mounting cavity.

3. The lighting control device as described in claim 2, characterized in that, The frame has a first sidewall and a second sidewall arranged opposite to each other along a first direction. Both the first sidewall and the second sidewall have the positioning hole. The mounting bracket has a third sidewall and a fourth sidewall arranged opposite to each other along the first direction. Both the third sidewall and the fourth sidewall are provided with the first mounting portion. The positioning member passes through the positioning hole of the first sidewall and is engaged in the first mounting portion of one of the third sidewall and the fourth sidewall. The positioning member passes through the positioning hole of the second sidewall and is engaged in the first mounting portion of the other of the third sidewall and the fourth sidewall.

4. The lighting control device as described in claim 3, characterized in that, The inner wall of the second mounting part is provided with a third mounting part along the second direction. The third mounting part extends along the perimeter of the frame. The length of the third mounting part along the second direction is less than the length of the second mounting part along the second direction. The rear cover is placed on the second mounting part and abuts against the third mounting part. The first direction intersects with the second direction.

5. The lighting control device as described in claim 4, characterized in that, The third mounting part includes a first connecting segment and a second connecting segment that are connected to each other. The length of the first connecting segment along the second direction is greater than the length of the second connecting segment along the second direction. The circuit board is mounted on the second connecting segment and abuts against the first connecting segment. The rear cover is placed on the first connecting segment.

6. The lighting control device as described in claim 4, characterized in that, The second mounting portion protrudes from the base plate along the second direction, and the second mounting portion extends along the perimeter of the frame. The length of the second mounting portion along the second direction is greater than the length of the frame along the second direction.

7. The lighting control device as described in claim 2, characterized in that, The positioning component includes a head, a first fastening section, and a second fastening section connected to each other. The radius of the second fastening section gradually decreases along the axial direction of the positioning component and toward the end away from the head. The first fastening section passes through the positioning hole, and the second fastening section is fastened to the first mounting part.

8. The lighting control device as described in claim 1, characterized in that, The lighting control device further includes a first fastener, and the inner wall of the mounting cavity is provided with a mounting post. The first fastener passes through the rear cover and the mounting post to securely connect the rear cover and the second mounting part. And / or, the lighting control device further includes a second fastener, the mounting bracket having a first mounting hole, the second fastener being used to pass through the first mounting hole on the mounting bracket for mounting the mounting bracket inside the lighting fixture.

9. The lighting control device as described in claim 2, characterized in that, The lighting control device further includes a knob assembly. The housing body has a second mounting hole on the side opposite to the mounting groove. The knob assembly is rotatably inserted through the second mounting hole and is electrically connected to the circuit board.

10. A lamp, characterized in that, Includes the lighting control device as described in any one of claims 1 to 9.

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