Junction box structure of down lamp

Abstract

The junction box structure comprises a bottom cover plate, a rear cover plate and a frame body, the frame body comprises a top plate and two side plates connected to the two ends of the top plate, the side plates and the top plate are integrally formed, side plate part pins are arranged at the lower ends of the side plates, and the side plate part pins are arranged in side plate connecting holes formed in the bottom plate in a penetrating mode. Side plate part hooks are arranged at the lower ends of the side plate part pins, the rear cover plate covers the rear side of the frame body, rear cover plate part pins are arranged at the lower end of the rear cover plate, the rear cover plate part pins are arranged in rear cover plate connecting holes of the bottom plate in a penetrating mode, rear cover plate part hooks are arranged at the lower ends of the rear cover plate part pins, and the upper end of the rear cover plate and the top plate are fixed together. Threading holes are formed in the top plate and the side plates, and hole covers are detachably connected to the threading holes. According to the utility model, the problem of poor structure compactness existing in the installation of the junction box with an independent structure on the base plate is solved.

Description

Technical Field

[0001] This utility model relates to the field of lighting technology, and in particular to a junction box structure for a downlight. Background Technology

[0002] Downlights are a common type of illumination device, installed in areas requiring lighting. Some downlights, due to safety requirements, require a junction box for wiring. Existing junction boxes are separate boxes bolted to the base plate where the downlight is mounted, resulting in poor structural compactness. Utility Model Content

[0003] This utility model provides a junction box structure for downlights integrated on a base plate, which solves the problem of poor structural compactness that exists when the junction box is an independent structure installed on the base plate.

[0004] The above technical problems are solved by the following technical solution: a junction box structure for a downlight, including a base plate for mounting the downlight, characterized in that it further includes a rear cover plate and an inverted "U"-shaped frame connected to the base plate, the frame including a top plate and two side plates connected to the two ends of the top plate at their upper ends, the side plates and the top plate being integrally formed together, the lower end of the side plate being provided with a side plate pin, the side plate pin being inserted into a side plate connection hole provided in the base plate, and the lower end of the side plate pin being provided with a stop The side panel pin disengages from the side panel connection hole via a side panel hook. The rear cover plate covers the rear side of the frame. The lower end of the rear cover plate has a rear cover plate pin that passes through a rear cover plate connection hole in the base plate. The lower end of the rear cover plate pin has a rear cover plate hook to prevent it from disengaging from the connection hole. The upper end of the rear cover plate is fixed to the top plate. Both the top plate and side plates have wire-passing holes, which are detachably covered. The base plate for mounting downlights serves as part of the junction box, resulting in a compact structure. All parts of the peripheral wall panels are integrally formed, ensuring a strong connection and easy manufacturing. Multiple wiring holes are provided and covered; the corresponding wiring hole cover is opened for wire passing as needed, offering good versatility. The junction box can be removed by straightening the hook.

[0005] Preferably, the hole cover is integrally formed with a hole cover connecting lug, which is integrally formed with the frame. The hole cover is connected to the wire hole only through the hole cover connecting lug. Differential pressure molding can be used, resulting in a simple structure and convenient manufacturing.

[0006] Preferably, the cover has a flathead pry hole, which is a through hole. In use, the cover can be pried off by inserting a flathead screwdriver into the pry hole, making removal of the cover convenient.

[0007] Preferably, the top plate has a snap-fit ​​recess on its upper surface, and the upper end of the rear cover plate has a front flange. The middle part of the front flange has a widened portion with a widening recess. The bottom wall of the widening recess protrudes from the lower surface of the widened portion to form a snap-fit ​​protrusion that snaps into the snap-fit ​​recess. This facilitates the connection and disassembly of the rear cover plate from the outer frame.

[0008] Preferably, the front end of the widened portion is provided with an upward-curving push-pull tab. This makes it convenient to remove the rear cover plate.

[0009] Preferably, the upper end of the outer surface of the side plate is provided with a wire-holding position, which is formed by stamping. This position protrudes into the junction box to assist in securing the wires.

[0010] Preferably, the top plate has several wiring holes at both ends, allowing for wire threading as needed.

[0011] Preferably, the outer surface of the top plate is provided with a wiring hole sealing plate formed by stamping from the outside to the inside, and the wiring hole is disposed on the wiring hole sealing plate. This can more effectively prevent foreign objects from entering the junction box.

[0012] Preferably, the wiring hole sealing plate is connected to the top plate only through the wiring hole sealing plate connecting ear.

[0013] Preferably, a wire plate is placed on the inner surface of the top plate, and a grounding wire is connected to the wire plate. The wire plate has a clearance hole aligned with the wire hole on the top plate, and both ends of the wire plate have downward-sloping sections aligned with the wiring hole. The edges of the inclined sections are provided with wire-locking clips. This allows for better fixation of the wire.

[0014] The present invention has the following advantages: it has a compact structure, is easy to install and disassemble, and has good strength. Attached Figure Description

[0015] Figure 1 This is a three-dimensional structural schematic diagram of the present invention from one perspective;

[0016] Figure 2 This is a three-dimensional structural schematic diagram of the present invention from another perspective.

[0017] In the diagram: 1. Base plate; 2. Rear cover plate; 3. Frame; 4. Top plate; 5. Side plate; 6. Side plate pin; 7. Side plate connecting hole; 8. Side plate hook; 9. Rear cover plate pin; 10. Rear cover plate connecting hole; 11. Rear cover plate hook; 12. Front flange; 13. Widened section; 14. Widened section recess; 15. Push-pull plate; 16. Wire hole; 17. Hole cover; 18. Hole cover connecting lug; 19. Pry hole; 20. Wire clamping position; 21. Wiring hole; 22. Wiring hole sealing plate; 23. Wiring hole sealing plate connecting lug; 24. Wire clamping plate; 25. Grounding wire; 26. Clearance hole; 27. Inclined section; 28. Wire clamping buckle. Detailed Implementation

[0018] 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 protection scope of the present utility model.

[0019] See Figure 1 and Figure 2 A junction box structure for a downlight includes a base plate 1, a rear cover plate 2, and an inverted "U"-shaped frame 3 connected to the base plate. The base plate is used to mount the downlight. The frame includes a top plate 4 and two side plates 5 connected to both ends of the top plate. The side plates and the top plate are integrally formed. The lower end of the side plate is provided with a side plate pin 6, which passes through a side plate connection hole 7 provided in the base plate. The lower end of the side plate pin is provided with a side plate hook 8 to prevent the side plate pin from coming out of the side plate connection hole. The rear cover plate covers the rear side of the frame. The lower end of the rear cover plate is provided with a rear cover plate pin 9, which passes through a rear cover plate connection hole 10 provided in the base plate. The lower end of the rear cover plate pin is provided with a rear cover plate hook 11 to prevent the rear cover plate pin from coming out of the rear cover plate connection hole. The upper end of the rear cover plate is fixed to the top plate. Specifically, the upper surface of the top plate has a snap-fit ​​recess, the upper end of the rear cover plate has a front flange 12, the middle of the front flange has a widening portion 13, the widening portion has a widening portion recess 14, the bottom wall of the widening portion recess protrudes from the lower surface of the widening portion to form a snap-fit ​​protrusion that snaps into the snap-fit ​​recess, and the front end of the widening portion has an upwardly curved push-pull tab 15. Both the top plate and the side plate have wire holes 16, and the wire holes are detachably connected to hole covers 17. The hole covers are integrally formed with hole cover connecting ears 18, which are integrally formed with the frame. The hole covers are connected to the wire holes only through the hole cover connecting ears. The hole covers have a flathead pry hole 19, which is a through hole. In use, a flathead screwdriver is inserted into the pry hole to pry off the hole cover.

[0020] The junction box is compactly designed, utilizing the base plate for mounting downlights as part of the overall structure. All parts of the surrounding wall panels are integrally molded, ensuring a secure connection and ease of fabrication. Multiple covered wiring holes are provided; the appropriate hole cover is opened for threading the wire as needed, offering good versatility. The junction box can be removed by straightening the hook.

[0021] The upper end of the outer surface of the side plate is provided with a wire clamping position 20, which is formed by stamping. Several wiring holes 21 are provided at both ends of the top plate. A wiring hole sealing plate 22, formed by stamping from the outside in, is provided on the outer surface of the top plate. The wiring hole sealing plate is connected to the top plate only through wiring hole sealing plate connecting ears 23. The wiring hole is formed by knocking off the wiring hole sealing plate. A wire pressing plate 24 is pressed onto the inner surface of the top plate. A grounding wire 25 is connected to the wire pressing plate. The wire pressing plate has a clearance hole 26 aligned with the wire through hole located on the top plate. Both ends of the wire pressing plate have downward-sloping inclined sections 27, which are aligned with the wiring holes. Wire clamping buckles 28 are provided at the edges of the inclined sections.

[0022] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0023] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A junction box structure for a downlight, comprising a base plate for mounting the downlight, characterized in that, It also includes a rear cover plate and an inverted "U"-shaped frame connected to the base plate. The frame includes a top plate and two side plates connected to both ends of the top plate. The side plates and the top plate are integrally formed. The lower end of the side plate is provided with a side plate part pin, which passes through a side plate connection hole provided in the base plate. The lower end of the side plate part pin is provided with a side plate part hook to prevent the side plate part pin from coming out of the side plate connection hole. The rear cover plate covers the rear side of the frame. The lower end of the rear cover plate is provided with a rear cover plate part pin, which passes through a rear cover plate connection hole provided in the base plate. The lower end of the rear cover plate part pin is provided with a rear cover plate hook to prevent the rear cover plate part pin from coming out of the rear cover plate connection hole. The upper end of the rear cover plate is fixed to the top plate. Both the top plate and the side plates are provided with wire holes, and the wire holes are detachably connected with hole covers.

2. The junction box structure for a downlight according to claim 1, characterized in that, The hole cover is integrally formed with a hole cover connecting lug, which is integrally formed with the frame. The hole cover is connected to the wire hole only through the hole cover connecting lug.

3. The junction box structure for a downlight according to claim 2, characterized in that, The cover has a straight pry hole, which is a through hole.

4. The junction box structure for a downlight according to claim 1, 2, or 3, characterized in that, The top plate has a snap-fit ​​recess on its upper surface, the rear cover plate has a front flange at its upper end, the front flange has a widened portion in the middle, the widened portion has a widening recess, and the bottom wall of the widening recess protrudes from the lower surface of the widened portion to form a snap-fit ​​protrusion that snaps into the snap-fit ​​recess.

5. The junction box structure for a downlight according to claim 4, characterized in that, The front end of the widened section is provided with an upward-curving push-pull tab.

6. The junction box structure for a downlight according to claim 1, 2, or 3, characterized in that, The upper end of the outer surface of the side plate is provided with a retaining wire position, which is formed by stamping.

7. The junction box structure for a downlight according to claim 1, 2, or 3, characterized in that, The top plate has several wiring holes at both ends.

8. The junction box structure for a downlight according to claim 7, characterized in that, The outer surface of the top plate is provided with a wiring hole sealing plate formed by stamping from the outside to the inside, and the wiring hole is provided on the wiring hole sealing plate.

9. The junction box structure for a downlight according to claim 8, characterized in that, The wiring hole sealing plate is connected to the top plate only through the wiring hole sealing plate connecting ear.

10. The junction box structure for a downlight according to claim 7, characterized in that, A wire plate is pressed onto the inner surface of the top plate. A grounding wire is connected to the wire plate. The wire plate has a clearance hole that is aligned with the wire hole on the top plate. Both ends of the wire plate have downward sloping sections that are aligned with the wiring hole. The edges of the sloping sections have wire clips.

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