Power supply box structure of down lamp

Abstract

The utility model relates to a power supply box structure of a down lamp, which comprises an inner box body with an opening at one end, an outer box body sleeved on the inner box body and with an opening at one end and a box cover covered at the opening end of the outer box body, and the opening direction of the opening end of the inner box body is the same as that of the opening end of the outer box body. The box cover and the outer box body are detachably connected together, a power supply circuit board is connected in the inner box body, a wire inlet hole is formed in the box cover, an outer box body part wire outlet hole is formed in the outer box body, an inner box body part wire outlet hole aligned with the outer box body part wire outlet hole is formed in the inner box body, and the inner box body part wire outlet hole is connected with the inner box body part wire outlet hole. A wire inlet hole part wire fixing sleeve is arranged in the wire inlet hole in a penetrating mode, and the outer box body part wire outlet hole and the inner box body part wire outlet hole are arranged on the wire outlet hole part wire fixing sleeve in a sleeving mode at the same time. The power supply box has the advantage of good protection effect on the power supply circuit board, and solves the problem that the protection effect on the power supply circuit board by the power supply box of the existing down lamp is poor.

Description

Technical Field

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

[0002] Downlights are a common type of illumination device, installed in areas requiring lighting. The power supply for downlights is provided by a power circuit board housed in a power supply box. However, existing downlight power supply boxes offer poor protection for the power circuit board. Utility Model Content

[0003] This invention provides a power box structure for downlights that offers good protection for the power circuit board, solving the problem of poor protection for the power circuit board in existing downlight power boxes.

[0004] The above technical problems are solved by the following technical solution: a power supply box structure for a downlight, characterized in that it includes an inner box with one open end, an outer box with one open end fitted onto the inner box, and a cover covering the open end of the outer box. The opening direction of the open end of the inner box is the same as the opening direction of the open end of the outer box. The cover and the outer box are detachably connected together. A power circuit board is connected inside the inner box. The cover has an inlet hole, the outer box has an outlet hole, and the inner box has an outlet hole aligned with the outlet hole of the outer box. A wire fixing sleeve passes through the inlet hole, and both the outlet hole of the outer box and the outlet hole of the inner box are fitted onto the outlet hole wire fixing sleeve. In use, the power cord passes through the outlet hole wire fixing sleeve and connects to the power circuit board. The output wire from the power circuit board passes through the outlet hole wire fixing sleeve and connects to the light source of the downlight. The double-layer box design provides good protection for the circuit board.

[0005] Preferably, the opening of the outer box is horizontal, and the front and rear ends of the lid have several pin holes. The upper and lower ends of the lid have flanges located outside the outer box, and the flanges have snap-fit ​​holes. The front and rear end faces of the opening of the outer box have several inserts that are correspondingly inserted into the pin holes, and the upper and lower surfaces of the outer box have several buckles that are correspondingly engaged in the snap-fit ​​holes. This design facilitates the assembly and disassembly of the lid and outer box.

[0006] Preferably, the opening of the outer box is horizontal, and the front and rear ends of the lid extend beyond the outer box to form an extension portion, which is provided with a hanging hole. In use, the device is installed by inserting hanging bolts through the hanging holes and fixing it to the mounting point.

[0007] Preferably, the lower end of the suspension hole is provided with an extended section for the head of the suspension bolt to pass through. This design eliminates the need to remove the suspension bolt, improving ease of use.

[0008] Preferably, the inner and outer housings are spaced apart. This improves the vibration isolation effect on the power circuit board.

[0009] Preferably, the gap between the inner box and the outer box gradually increases from the open end to the closed end, resulting in good vibration isolation.

[0010] Preferably, the bottom wall of the inner casing is provided with several support protrusions, and the end face of each support protrusion is provided with a connecting threaded hole. The power circuit board is supported on the support protrusion, and the circuit board fixing bolt passes through the power circuit board and is threaded into the connecting threaded hole to fix the power circuit board to the support protrusion. This can improve the heat dissipation effect.

[0011] Preferably, a ventilation gap is provided between the power circuit board and the side wall of the inner casing. This improves heat dissipation.

[0012] Preferably, the inner box has an inner box portion wire passage groove at its open end, and the outer box has an outer box portion wire passage groove at its open end that is aligned with the inner box portion wire passage groove.

[0013] Preferably, the wire fixing sleeve at the inlet hole is a rubber structure. The wire fixing sleeve includes an inlet hole wire fixing sleeve body and two inlet hole wire fixing sleeve clips disposed at both ends of the inlet hole wire fixing sleeve body. The inlet hole wire fixing sleeve body and the inlet hole wire fixing sleeve clips form an annular groove for the inlet hole wire fixing sleeve. The inlet hole wire fixing sleeve body passes through the inlet hole, and the hole wall of the inlet hole passes through the annular groove for the inlet hole wire fixing sleeve. The wire fixing sleeve at the outlet hole is... The rubber structure includes a cable retaining sleeve for the cable outlet, comprising a main body and two clips at both ends of the main body. The main body and clips form an annular groove. The main body passes through both the outer and inner cable outlet holes, with the walls of both holes fitting within the annular groove. This provides reliable cable fixation and vibration isolation. The cable retaining sleeve also effectively positions both the inner and outer cable outlets.

[0014] This invention has the following advantages: it provides good protection for the power supply circuit board. Attached Figure Description

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

[0016] Figure 2 This is a three-dimensional structural diagram of the present invention after the outer box has been removed;

[0017] Figure 3 This is a schematic diagram showing the connection relationship between the inner casing and the power circuit board.

[0018] Figure 4 A schematic diagram of an internal contract;

[0019] Figure 5 This is an enlarged schematic diagram of the wire fixing sleeve at the inlet hole.

[0020] In the diagram: Inner box 1, Outer box 2, Box cover 3, Pin hole 4, Flanged edge 5, Snap-fit ​​hole 6, Insert 7, Buckle 8, Extension part 9, Hanging hole 10, Head of hanging bolt 11, Widening section 12, Hanging bolt 13, Power circuit board 14, Wire fixing sleeve at the inlet hole 15, Wire fixing sleeve at the outlet hole 16, Support protrusion 17, Connecting threaded hole 18, Circuit board fixing bolt 19, Wire passage groove in the inner box 20, Wire passage groove in the outer box 21, Wire fixing sleeve body at the inlet hole 22, Wire fixing sleeve clip at the inlet hole 23, Annular groove at the inlet hole 24. Detailed Implementation

[0021] 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.

[0022] See Figures 1 to 5A power supply box structure for a downlight includes an inner box 1 with one open end, an outer box 2 with one open end fitted onto the inner box, and a cover 3 covering the open end of the outer box. The opening direction of the inner box and the outer box is the same. Both the opening directions of the inner and outer boxes are to the left. The cover and the outer box are detachably connected. Specifically, the cover has several pin holes 4 at its front and rear ends, and flanges 5 located outside the outer box at its upper and lower ends, with snap-fit ​​holes 6 on the flanges. The front and rear ends of the open end of the outer box have several inserts 7 corresponding to the pin holes, and the upper and lower surfaces of the outer box have several buckles 8 corresponding to the snap-fit ​​holes. The opening direction of the outer box is horizontal, and the front and rear ends of the cover extend beyond the outer box to form extensions 9, with hanging holes 10 on the extensions. The lower end of the suspension hole is provided with an extended section 12 for the head 11 of the suspension bolt to pass through. In use, the utility model is installed by passing the suspension bolt 13 through the suspension hole and fixing it to the part where the utility model is installed. When removing or reinstalling the utility model, move the utility model upward until the extended section is aligned with the suspension bolt, and then slide the utility model horizontally to remove it.

[0023] The inner box houses a power circuit board 14. The cover has an inlet hole, the outer box has an outlet hole, and the inner box has an outlet hole aligned with the outer outlet hole. A wire retaining sleeve 15 passes through the inlet hole. Both the outer and inner outlet holes are fitted onto the outlet hole wire retaining sleeve 16. In use, the power cord passes through the inlet hole wire retaining sleeve and connects to the power circuit board. The output wire from the power circuit board passes through the outlet hole wire retaining sleeve and connects to the light source of the downlight. The inner and outer boxes are spaced apart. The size of the inner box gradually decreases from the open end to the closed end, thus the gap between the inner and outer boxes gradually increases from the open end to the closed end. The bottom wall of the inner box has several support protrusions 17, and the end face of the support protrusions has connecting threaded holes 18. The power circuit board is supported on the support protrusions, and the circuit board fixing bolts 19 pass through the power circuit board and are threaded into the connecting threaded holes to fix the power circuit board to the support protrusions. There is a gap between the power circuit board and the side wall of the inner box to form a ventilation gap. The opening end of the inner box has an inner box part wire passage groove 20, and the opening end of the outer box has an outer box part wire passage groove 21 aligned with the inner box part wire passage groove. The inlet hole wire fixing sleeve is made of rubber. The inlet hole wire fixing sleeve includes an inlet hole wire fixing sleeve body 22 and two inlet hole wire fixing sleeve clips 23 disposed at both ends of the inlet hole wire fixing sleeve body. The inlet hole wire fixing sleeve body and the inlet hole wire fixing sleeve clips form an annular groove 24 for the inlet hole wire fixing sleeve. The inlet hole wire fixing sleeve body passes through the inlet hole, and the hole wall of the inlet hole passes through the annular groove of the inlet hole wire fixing sleeve. The structure of the wire fixing sleeve at the outlet hole is the same as that at the inlet hole, that is: the wire fixing sleeve at the outlet hole is a rubber structure, the wire fixing sleeve at the outlet hole includes the wire fixing sleeve body and two wire fixing sleeve clips set at both ends of the wire fixing sleeve body, the wire fixing sleeve body and the wire fixing sleeve clips form an annular groove for the wire fixing sleeve at the outlet hole, the wire fixing sleeve body passes through both the outlet hole of the outer box and the outlet hole of the inner box, and the hole walls of the outlet holes of the outer box and the inner box are both passed through the annular groove for the wire fixing sleeve at the outlet hole.

[0024] 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.

[0025] 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 power supply box structure for a downlight, characterized in that, The device includes an inner box with one open end, an outer box with one open end fitted onto the inner box, and a lid covering the open end of the outer box. The opening direction of the inner box and the outer box is the same. The lid and the outer box are detachably connected together. A power circuit board is connected inside the inner box. The lid has an inlet hole, the outer box has an outlet hole, and the inner box has an outlet hole aligned with the outlet hole of the outer box. A wire fixing sleeve passes through the inlet hole, and both the outlet hole of the outer box and the outlet hole of the inner box are fitted onto the outlet hole wire fixing sleeve.

2. The power supply box structure for a downlight according to claim 1, characterized in that, The opening of the outer box is horizontal. The front and rear ends of the box cover are provided with several pin holes. The upper and lower ends of the box cover are provided with flanges located outside the outer box. The flanges are provided with snap-fit ​​holes. The front and rear end faces of the opening end of the outer box are provided with several inserts that are correspondingly inserted into the pin holes. The upper and lower surfaces of the outer box are provided with several buckles that are correspondingly snapped into the snap-fit ​​holes.

3. The power supply box structure for a downlight according to claim 1 or 2, characterized in that, The opening of the outer box is horizontal, and the front and rear ends of the lid extend beyond the outer box to form an extension, which has a hanging hole.

4. The power supply box structure for a downlight according to claim 3, characterized in that, The lower end of the suspension hole is provided with an extended section for the head of the suspension bolt to pass through.

5. The power supply box structure for a downlight according to claim 1 or 2, characterized in that, The inner box and the outer box are spaced apart.

6. The power supply box structure for a downlight according to claim 5, characterized in that, The gap between the inner box and the outer box gradually increases from the open end to the closed end.

7. The power supply box structure for a downlight according to claim 1 or 2, characterized in that, The bottom wall of the inner box is provided with several support protrusions, and the end face of the support protrusions is provided with connecting threaded holes. The power circuit board is supported on the support protrusions, and the circuit board fixing bolt passes through the power circuit board and is threaded into the connecting threaded holes to fix the power circuit board together with the support protrusions.

8. The power supply box structure for a downlight according to claim 7, characterized in that, A ventilation gap is provided between the power circuit board and the side wall of the inner box.

9. The power supply box structure for a downlight according to claim 1 or 2, characterized in that, The inner box has an inner box section wire passage groove at its open end, and the outer box has an outer box section wire passage groove aligned with the inner box section wire passage groove at its open end.

10. The power supply box structure for a downlight according to claim 1 or 2, characterized in that, The inlet cable retaining sleeve is made of rubber. It includes an inlet cable retaining sleeve body and two inlet cable retaining sleeve clips located at both ends of the body. The body and clips form an annular groove. The body passes through the inlet hole, and the hole wall passes through the annular groove. The outlet cable retaining sleeve is also made of rubber. The cable outlet fixing sleeve includes a cable outlet fixing sleeve body and two cable outlet fixing sleeve clips disposed at both ends of the cable outlet fixing sleeve body. The cable outlet fixing sleeve body and the cable outlet fixing sleeve clips form an annular groove for the cable outlet fixing sleeve. The cable outlet fixing sleeve body passes through both the cable outlet hole of the outer box and the cable outlet hole of the inner box. The hole walls of the cable outlet holes of the outer box and the inner box are both inserted into the annular groove for the cable outlet fixing sleeve.

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