Power supply control board installation inner box

Abstract

The utility model relates to the technical field of control panel mounting boxes, in particular to a power supply control panel mounting inner box, which comprises an inner box main body arranged in a shell, a buckle structure matched with a control panel is arranged in the inner box main body, the control panel is positioned between the buckle structure and the bottom of the inner box main body, and the inner box main body is arranged in the shell. A supporting column matched with the control panel is arranged in the inner box main body, a wiring structure is arranged on the inner box main body, a receding opening is formed in the inner box main body, a positioning structure is arranged between the inner box main body and the shell, a foot pad is fixedly arranged at the lower end of the inner box main body, and the inner box main body is fixedly connected with the inner box main body. The foot pads are in contact with the bottom of the shell, a cable is guided through the wiring structure and fixed, the situation that welding spots on the control panel are affected by shaking of the cable during wiring is prevented, the control panel is fixed through the buckle structure, and the situation that the control panel is scratched due to screw fixing is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of control panel installation boxes, in particular to an inner installation box for a power control panel. Background Art

[0002] An LED driver power supply is a voltage converter that converts power supply into a specific voltage and current to drive the LED to emit light. Typically, the input of an LED driver power supply includes high-voltage industrial frequency AC (i.e., mains electricity), low-voltage DC, high-voltage DC, low-voltage high-frequency AC (such as the output of an electronic transformer), etc., while the output of an LED driver power supply is mostly a constant current source that can change voltage as the forward voltage drop of the LED changes. The core components of an LED power supply include a switch controller, inductor, switching element (MOSfet), feedback resistor, input filter device, output filter device, etc., which are arranged on a control board (circuit board). Depending on the requirements of different occasions, there must also be input overvoltage protection circuits, input undervoltage protection circuits, LED open circuit protection, overcurrent protection circuits, etc.

[0003] Existing driving power supplies generally have two parts, an outer shell and an inner box, to protect the control board. The outer shell prevents the inner box and the control board from being damaged by bumps and the like, and the inner box fixes the control board. The inner box is generally made of insulating material to prevent the control board from short-circuiting. For example, Chinese patent announcement No. CN108495513A discloses "an intelligent numerical control LED waterproof driving power supply", which detects the amount of water entering through a water level sensor and transmits the feedback signal to the control main board. The control main board controls the rotation of the driving motor, thereby rotating the rectangular limit card plate by an angle, so that the limit card plate is disengaged from the card slot. At this time, the originally stretched telescopic shaft loses its limit, and the spring is used to retract, so that the top of the driving inner box, which was originally not in contact with the sealing layer, contacts the sealing layer. At this time, the only opening of the driving inner box is sealed, and the driving inner box is sealed and waterproof as a whole, effectively solving the problem of water entering the driving power supply.

[0004] However, in actual use, when the control board in the inner box is connected, the shaking of the cable affects the solder joints on the control board, which is prone to phenomena such as cold soldering and desoldering. In addition, the existing core usually uses screws to fix the control board. During installation, the screws can easily scratch the control board, causing the control board to short-circuit or open circuit. Utility Model Content

[0005] The purpose of the utility model is to solve the shortcomings in the prior art that when the control board is connected, the shaking of the cables affects the solder joints on the control board, the control board is usually fixed with screws, and the screws are likely to scratch the control board during installation. A power control board installation inner box is proposed.

[0006] In order to achieve the above purpose, the present invention adopts the following technical solutions:

[0007] A power control board installation inner box is designed, including an inner box main body arranged in an outer shell, a snap structure cooperating with the control board is provided in the inner box main body, the control board is located between the snap structure and the bottom of the inner box main body, a support column cooperating with the control board is provided in the inner box main body, a wiring structure is provided on the inner box main body, an avoidance opening is opened on the inner box main body, a positioning structure is provided between the inner box main body and the outer shell, and a pad is fixedly provided at the lower end of the inner box main body, and the pad is in contact with the bottom of the outer shell.

[0008] Furthermore, the wiring structure includes a wiring hole and a guide groove, and the wiring hole is connected to the guide groove.

[0009] Furthermore, there are two threading areas in the wiring hole, and the guide groove is a V-shaped structure that is wide at the top and narrow at the bottom, and its narrower side is connected to the wiring hole; the inner diameter of the narrower side of the guide groove is larger than the inner diameter of one threading area and smaller than the inner diameters of two threading areas.

[0010] Furthermore, the buckle structure includes a connecting groove provided on the inner box body, and a clip that matches the control board is fixedly provided in the connecting groove.

[0011] Furthermore, the clamping member includes an elastic sheet fixedly connected to the connecting groove, and a relief portion is fixedly provided at the lower end of the elastic sheet, and an inclined surface is provided on the relief portion.

[0012] Furthermore, the positioning structure includes an elastic positioning plate fixedly provided on the inner box body, a limiting portion fixedly provided on the upper end of the positioning plate and engaged with the outer shell, and a slope is provided on the lower end of the limiting portion.

[0013] The utility model provides a power control board installation inner box, which has the following beneficial effects:

[0014] In the present invention, the cables are guided and fixed by the wiring structure to prevent the cables from shaking during wiring and affecting the solder joints on the control board. Before wiring, the two cables are inserted into the wiring hole along the guide groove. Because the inner diameter of the narrower side of the guide groove is larger than the inner diameter of one threading area and smaller than the inner diameters of the two threading areas, when the two cables are inserted into the wiring hole, only a portion of each cable can contact the guide groove, thereby preventing the cables from escaping from the guide groove and losing their fixation.

[0015] Secondly, in the present invention, the control panel is fixed by a snap-fit ​​structure, which prevents the screws from scratching the control panel. The installation can be performed without the need for installation tools, and the installation operation is simple. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a structural diagram of an inner box for installing a power control board proposed by the present invention;

[0017] Figure 2 This is a schematic structural diagram of the connecting groove of the utility model;

[0018] Figure 3 This is a schematic structural diagram of the elastic sheet of the utility model;

[0019] Figure 4 This is a structural diagram of the positioning plate of the utility model.

[0020] In the figure: 1. Outer shell; 2. Inner box body; 3. Snap-on structure; 31. Connecting groove; 32. Clamp; 321. Elastic sheet; 322. Avoidance portion; 4. Support column; 5. Wiring structure; 51. Wiring hole; 511. Threading area; 52. Guide groove; 6. Avoidance port; 7. Positioning structure; 71. Positioning plate; 72. Limiting portion; 8. Foot pad. DETAILED DESCRIPTION

[0021] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0022] Reference Figure 1-4 A power control board installation inner box includes an inner box body 2 arranged in an outer shell 1, a snap structure 3 that cooperates with the control board is provided in the inner box body 2, the control board is located between the snap structure 3 and the bottom of the inner box body 2, a support column 4 that cooperates with the control board is provided in the inner box body 2, a wiring structure 5 is provided on the inner box body 2, an avoidance opening 6 is opened on the inner box body 2, a positioning structure 7 is provided between the inner box body 2 and the outer shell 1, and a pad foot 8 is fixedly provided at the lower end of the inner box body 2, and the pad foot 8 is in contact with the bottom of the outer shell 1.

[0023] In the present invention, the cables are guided and fixed by the wiring structure 5 to prevent the cables from shaking during wiring and affecting the solder joints on the control board. The control board is fixed by the snap-fit ​​structure 3 to avoid the screws from scratching the control board. No installation tools are required for installation, and the installation operation is simple. The purpose of setting the avoidance opening 6 is to free up space to avoid affecting the electronic components on the control board that need to pass through the inner box body 2 and the outer shell 1, such as toggle switches and other electronic components that need to be slidingly set.

[0024] Furthermore, in this embodiment, the wiring structure 5 includes a wiring hole 51 and a guide groove 52 . The wiring hole 51 is connected to the guide groove 52 . The guide groove 52 is provided to facilitate guiding the cable into the wiring hole 51 .

[0025] Furthermore, in this embodiment, there are two circular threading areas 511 in the wiring hole 51, and the two circular threading areas 511 are connected to each other to form a straight slot. The guide groove 52 is a V-shaped structure that is wide at the top and narrow at the bottom, and its narrower side is connected to the wiring hole 51; the inner diameter of the narrower side of the guide groove 52 is larger than the inner diameter of one threading area 511 and smaller than the inner diameters of the two threading areas 511. Before wiring, the two cables are inserted into the wiring hole 51 along the guide groove 52. Since the inner diameter of the narrower side of the guide groove 52 is larger than the inner diameter of one threading area and smaller than the inner diameters of the two threading areas, when the two cables are inserted into the wiring hole 51, only a portion of each cable can contact the guide groove, thereby preventing the cables from detaching from the guide groove 52 and losing fixation.

[0026] It should be noted that, in this embodiment, the snap-fit ​​structure 3 includes a connecting groove 31 provided on the inner box body 2, and a clip 32 that cooperates with the control board is fixed in the connecting groove 31. The clip 32 limits the control board and fixes the control board between the clip 32 and the support column 4.

[0027] In addition, in this embodiment, the clamping member 32 includes an elastic sheet 321 fixedly connected to the connecting groove 31, and the lower end of the elastic sheet 321 is fixedly provided with an avoidance portion 322, and the avoidance portion 322 is provided with an inclined surface. When the control board is installed, the control board abuts against the inclined surface of the avoidance portion 322, and the avoidance portion 322 and the elastic sheet 321 are subjected to force, and the elastic sheet 321 undergoes elastic deformation, so that the control board can continue to move downward, and the control board is clamped between the clamping member 32 and the support column 4.

[0028] To say it in more detail, in this embodiment, the positioning structure 7 includes an elastic positioning plate 71 fixedly provided on the inner box body 2, and a limiting portion 72 fixedly provided on the upper end of the positioning plate 71 for engaging with the outer shell 1, and a slope is provided on the lower end of the limiting portion 72, and a limiting groove matching the limiting portion 72 is provided on the outer shell 1. When installing the inner box body 2, the inner box body 2 is inserted into the outer shell 1. At this time, the slope of the limiting portion 72 contacts the outer shell 1, and the inner box body 2 is pressed down so that the limiting portion 72 is subjected to force, and the positioning plate 71 undergoes elastic deformation, so that the limiting portion 72 is inserted into the outer shell 1, and the inner box body 2 is pressed down again so that the limiting portion 72 is engaged with the limiting groove of the outer shell 1 to complete the installation.

[0029] Working method: When installing the inner box body 2, insert the inner box body 2 into the outer shell 1. At this time, the inclined surface of the limiting portion 72 contacts the outer shell 1. Press down the inner box body 2 so that the limiting portion 72 is subjected to force, and the positioning plate 71 undergoes elastic deformation, so that the limiting portion 72 is inserted into the outer shell 1. Continue to press down the inner box body 2 so that the limiting portion 72 is engaged with the limiting groove of the outer shell 1, and the installation is completed.

[0030] Before wiring, insert the two cables into the wiring hole 51 along the guide groove 52 to prevent the cables from escaping from the guide groove 52 and losing their fixation. When installing the control board, the control board abuts against the inclined surface of the avoidance portion 322, and the avoidance portion 322 and the elastic sheet 321 are subjected to force. The elastic sheet 321 undergoes elastic deformation, allowing the control board to continue to move downward and clamp the control board between the clamp 32 and the support column 4.

[0031] The above is only a preferred specific implementation method of the present invention, but the protection scope of the present invention is not limited to this. Any technician familiar with the technical field within the technical scope disclosed by the present invention can make equivalent replacements or changes based on the technical solution and utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A power control board mounting inner box, comprising an inner box body (2) disposed in an outer shell (1), characterized in that: The inner box body (2) is provided with a snap-fit ​​structure (3) that matches the control panel, and the control panel is located between the snap-fit ​​structure (3) and the bottom of the inner box body (2). The inner box body (2) is provided with a support column (4) that matches the control panel, and the inner box body (2) is provided with a wiring structure (5). The inner box body (2) is provided with an avoidance opening (6). A positioning structure (7) is provided between the inner box body (2) and the outer shell (1), and a pad (8) is fixedly provided at the lower end of the inner box body (2), and the pad (8) is in contact with the bottom of the outer shell (1).

2. The power control board mounting inner box according to claim 1, characterized in that: The wiring structure (5) comprises a wiring hole (51) and a guide groove (52), and the wiring hole (51) is communicated with the guide groove (52).

3. The power control board mounting inner box according to claim 2, characterized in that: The wiring hole (51) has two threading areas (511), and the guide groove (52) is a V-shaped structure that is wide at the top and narrow at the bottom, with its narrower side connected to the wiring hole (51); the inner diameter of the narrower side of the guide groove (52) is larger than the inner diameter of one threading area (511) and smaller than the inner diameters of the two threading areas (511).

4. The power control board mounting inner box according to claim 1, characterized in that: The buckle structure (3) comprises a connecting groove (31) provided on the inner box body (2), and a clamping member (32) matched with the control panel is fixedly provided in the connecting groove (31).

5. The power control board mounting inner box according to claim 4, characterized in that: The clamping member (32) comprises an elastic piece (321) fixedly connected to the connecting groove (31); a relief portion (322) is fixedly provided at the lower end of each elastic piece (321); and an inclined surface is provided on each relief portion (322).

6. The power control board mounting inner box according to claim 1, characterized in that: The positioning structure (7) comprises an elastic positioning plate (71) fixedly arranged on the inner box body (2); a limiting portion (72) fixedly arranged on the upper end of the positioning plate (71) and engaged with the outer shell (1); and a sloped surface is provided on the lower end of the limiting portion (72).

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