Lighting switch power supply installation junction box

Abstract

The utility model relates to the field of buildings, in particular to a junction box technology. A lighting switch power supply installation junction box comprises a box body with a forward opening, a box door capable of being opened and closed is arranged at the opening of the box body, a bottom plate is fixed in the box body, at least two switch module groups are fixed on the bottom plate, and each switch module group is composed of a lighting switch module, a live wire interface, a zero wire interface and a ground wire interface. The live wire interface, the zero wire interface and the ground wire interface in the same switch module group are connected with the lighting switch module through wires; the lighting switch modules in different switch module groups are arranged up and down at equal intervals to form a lighting switch module; and the live wire interfaces in different switch module groups are closely arranged in a row to form a live wire interface group. According to the utility model, the design principles of a lighting distribution box and an equipment control box are utilized, a standardized production concept is integrated, a junction box convenient for field installation is manufactured, and later maintenance, popularization and wide application are facilitated.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of building, specifically relates to wiring box technology. BACKGROUND

[0002] At present, in the building design projects such as indoor decoration, outdoor landscape and facade floodlight, a large number of isolation step-down transformers (or ballasts), lighting switch power supply devices with intelligent control function, etc. are used. The installation of such devices is various: some are integrated in the lamp, some are installed in the distribution box, some are installed in the suspended ceiling, some are installed in the facade curtain wall, and some are installed in the outdoor cable well or buried underground.

[0003] The existing installation mode of isolation step-down transformer / switch power supply (hereinafter referred to as power supply device) is relatively chaotic, mainly having the following problems:

[0004] 1. The power supply devices used in indoor decoration are often large in quantity and heat dissipation, which are not conducive to heat dissipation if directly arranged in the suspended ceiling or closely arranged with the decoration materials, seriously affecting the service life of the power supply device and being not conducive to safe operation;

[0005] 2. The number of power supply devices for facade floodlight is large - often several dozen power supply devices are needed for each floor. If there is no unified standard installation, the later maintenance is too complex, which is not conducive to standard operation and later management;

[0006] 3. The power supply devices in the outdoor landscape area are difficult to avoid installation on the ground. When installed in the non-standardly made junction box or junction box, it cannot guarantee the IP65 waterproof and dustproof level required by the standard, and even some are directly installed in the cable well, outdoor wall-mounted installation, etc., which seriously affect the service life and use safety.

[0007] 4. According to the national standard, the protection level of the outdoor installed lighting distribution box (cabinet) and control box should not be lower than IP65, and the protection level of the power switch box (including the power device box) should not be lower than IP55; but the power device box that can be used for such procurement requirements cannot meet the protection requirements.

[0008] According to the "Standard for Electrical Design of Civil Buildings" GB51348-2019, "Standard for Building Lighting Design" GB / T50034-2024, "Low Voltage Electrical Devices Part 4-41: Safety Protection against Electric Shock" GB / T16895.21-2020, "Low Voltage Electrical Devices Part 7-714: Requirements for Special Devices or Places Outdoor Lighting Devices" GB / T 16895.28-2017 and other specifications and standards, a series of requirements such as safe transformation, AC / DC transformation ratio, protection level, safety distance, etc. are proposed for isolation step-down transformers for lighting and switch power supplies for control. INVENTION CONTENTS

[0009] The utility model discloses a lighting switch power supply installation junction box to solve at least one of the above technical problems.

[0010] The technical problem solved by the utility model can be realized by the following technical solutions.

[0011] A lighting switch power supply installation junction box, comprising an opening forward box body, the opening of the box body is equipped with the box door that can open and close, the box body is fixed with the bottom plate in, the bottom plate is fixed with at least two groups of switch module groups, the switch module group is composed of one lighting switch module, one firewire interface, one zero line interface, one ground wire interface, and the firewire interface, zero line interface and ground wire interface in the same switch module group are connected with the lighting switch module through the wire;

[0012] The lighting switch modules in different switch module groups are arranged together at equal intervals, and form a lighting switch module group.

[0013] The bottom plate is fixed with an N row, and the zero line interfaces in different switch module groups are all fixed on the N row.

[0014] The bottom plate is fixed with a PE row, and the ground wire interfaces in different switch module groups are all fixed on the PE row.

[0015] The firewire interfaces in different switch module groups are arranged in a row closely, and form a firewire interface group.

[0016] In the above design, the switch module is integrated into the junction box, which is convenient for on-site installation and beneficial for later maintenance. The switch module group is integrated into the junction box, which can also play a role in waterproofing and dustproofing. The lighting switch modules in different switch module groups are arranged together at equal intervals, and form a lighting switch module group. The beneficial effects of the lighting switch module group are unified standard, improved installation efficiency of the switch module, and convenient for later maintenance work. The beneficial effects also include modular installation, which is convenient for standard wiring, beneficial for heat dissipation and ventilation, can improve the operation safety of the switch module, enhance the protection ability of the junction box, and prolong the service life of the switch module.

[0017] Further, the switch module group has two groups, the lighting switch module group is located at the lower part of the bottom plate, the firewire interface group is located at the upper left side of the bottom plate, the N row and the PE row are located at the upper right side of the bottom plate, and the N row is located between the PE row and the lighting switch module group.

[0018] In the above design, it is a module standardization layout scheme for installing two groups of switch module groups, which is beneficial for heat dissipation from the bottom to the upper part, convenient for ventilation, enhances the protection ability of the junction box, and prolongs the service life of the switch module.

[0019] Further preferably, the size of the box is H300mm*W400mm*D140mm.

[0020] In the above design, the box size has the beneficial effect of saving the amount of sheet metal used for the box and reducing the manufacturing cost of the box in addition to providing protection for the installation of two groups of switch module groups.

[0021] Further, the switch module group has four groups, the lighting switch module group is located on the right side of the bottom plate, the live wire interface group is located on the upper left side of the bottom plate, the N row and the PE row are located on the lower left side of the bottom plate, and the PE row is located between the N row and the lighting switch module group.

[0022] In the above design, it is a module standardization layout scheme for installing four groups of switch module groups. This scheme concentrates the installation of the lighting switch module group on the right side of the bottom plate, and the switch module groups are arranged from top to bottom. The beneficial effect of this layout scheme is that the heat is concentrated on the right side of the bottom plate, which does not affect the power switch, N row, and PE row on the left side. The concentrated layout of the functional modules facilitates standard wiring, is conducive to ventilation and heat dissipation, improves the protection capability of the junction box, and prolongs the service life of the switch module.

[0023] Further preferably, the size of the box is H400mm*W500mm*D140mm.

[0024] In the above design, the box size has the beneficial effect of saving the amount of sheet metal used for the box and reducing the manufacturing cost of the box in addition to providing protection for the installation of four groups of switch module groups.

[0025] Further, the box has a wire inlet port on the left side wall or the side wall at the bottom, and a wire outlet port on the side wall at the bottom.

[0026] In the above design, the wire inlet port is provided at the side plate of the left side wall. The beneficial effect of this wiring layout is that the side plate as the wire inlet port is close to the power switch, which is conducive to the neatness of the wiring inside the box. The neat wiring is beneficial to ventilation and heat dissipation. The wire inlet port is provided at the bottom side wall. The beneficial effect of this wiring layout is that the outdoor junction box is waterproof and dustproof. The wire outlet port is provided at the bottom side wall. In addition to waterproof and dustproof, it also helps the junction box to be more compact and saves the space of the box. In addition, arranging the wire outlet port at the bottom can reduce the bending of the wire and bring less cable resistance and cable heat dissipation effect, thereby prolonging the stability of the junction box.

[0027] Further, the wire inlet port and the wire outlet port are each provided with a detachable buckle.

[0028] In the above design, the buckle is provided for dustproof and waterproof. The beneficial effect of the detachable buckle is that it is convenient for maintenance and repair.

[0029] Further, the bottom of the left and right side walls of the box is provided with 4-6 rows of 95mm*15mm heat dissipation holes, the hole spacing of the heat dissipation holes is 20mm, and the top of the heat dissipation holes is provided with an outwardly extending outer cover.

[0030] In the above design, the heat dissipation holes are arranged at the bottom of the left and right side walls, which is beneficial to the entry of cold air from the bottom and the discharge of heat from the top after being heated, thereby taking away the heat in the terminal box. Good ventilation and heat dissipation are beneficial to improve the protection capability of the terminal box and prolong the service life of the switch module. The top of the heat dissipation holes is provided with an outwardly extending outer cover, which is beneficial to dust and water prevention.

[0031] Further, a rain cover is connected to the top of the box, the rain cover protrudes outwardly from the box by not less than 20mm around, and the top of the rain cover is higher than the top of the box by 50mm.

[0032] In the above design, the beneficial effect of connecting the rain cover to the box is that rainwater is prevented from entering the box from the heat dissipation holes, thereby improving the waterproof capability of the terminal box.

[0033] Further, the bottom plate is a plastic plate, the back of the bottom plate is lined with a cold pressing plate, the two ends of the lighting switch module are provided with first bolt holes, the bottom plate is provided with second bolt holes at positions corresponding to the first bolt holes, sleeves are arranged in the second bolt holes, the rear end of the sleeve is provided with a turned edge, and the turned edge is pressed between the cold pressing plate and the plastic plate.

[0034] In the above design, the bottom plate is made of a plastic plate to provide electrical insulation, and the back of the bottom plate is lined with a cold pressing plate to provide protection strength. The beneficial effect of arranging the sleeve is that the connection strength at this position can be increased by using the sleeve, thereby improving the problem of wire sliding caused by repeated disassembly. The sleeve can also form a gap between the plastic plate and the cold pressing plate, which is convenient for wiring in the gap and is also beneficial to ventilation and heat dissipation.

[0035] The utility model utilizes the design principle of the lighting distribution box and the equipment control box, integrates the standardization production concept, creates the terminal box which is convenient for on-site installation, is beneficial to the purpose of later maintenance, embodies the implementation details of industrialization and modularization, and is beneficial to promotion and wide application. BRIEF DESCRIPTION OF DRAWINGS

[0036] In order to more clearly illustrate the technical scheme of the embodiments of the utility model, the drawings needed in the embodiment description will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the utility model, and other drawings can be obtained by those skilled in the art without creative labor. Among them:

[0037] Figure 1 It is a front view of the utility model;

[0038] Figure 2 This is a schematic diagram of the inner cavity of the 2-position switch module of the present invention;

[0039] Figure 3 This is a schematic diagram of the inner cavity of the 4-position switch module of the present invention;

[0040] Figure 4 It is a left view of the utility model;

[0041] Figure 5 It is a front view of the utility model with a rain cover.

[0042] Explanation of symbols:

[0043] 1. Box body; 2. Box door; 3. Bottom plate; 4. PE row; 5. N row; 6. Power switch; 7. Lighting switch module; 8. Side panel; 9. Heat dissipation holes; 10. External shading edge; 11. Rain cover. DETAILED DESCRIPTION

[0044] In order to make the above-mentioned objects, features and advantages of the present invention more understandable, the specific implementation methods of the present invention are described in detail below with reference to the accompanying drawings.

[0045] Reference Figure 1 、 Figure 2 、 Figure 3 As shown, a lighting switch power supply installation junction box includes a box body 1 with a forward opening, and a closable door 2 is provided at the opening of the box body 1. A base plate 3 is fixed within the box body 1, and at least two switch module groups are fixed to the base plate 3. The switch module groups are composed of a lighting switch module 7, a live wire interface, a neutral wire interface, and a ground wire interface. The live wire interface, neutral wire interface, and ground wire interface in the same switch module group are connected to the lighting switch module 7 via wires; the lighting switch modules 7 in different switch module groups are arranged together at equal intervals up and down to form a lighting switch module; an N row 5 is fixed to the base plate 3, and the neutral wire interfaces in different switch module groups are all fixed to the N row 5; a PE row 4 is fixed to the base plate 3, and the ground wire interfaces in different switch module groups are all fixed to the PE row 4; the live wire interfaces in different switch module groups are closely arranged in a row to form a live wire interface group. The utility model integrates the lighting switch module 7 into the junction box, which is convenient for on-site installation and facilitates later maintenance.

[0046] Example 1

[0047] Reference Figure 2As shown, the switch module groups have two groups, the lighting switch module group is located at the lower part of the bottom plate 3, the firewire interface group is located at the upper left side of the bottom plate 3, the N row 5, the PE row 4 is located at the upper right side of the bottom plate 3, and the N row 5 is located between the PE row 4 and the lighting switch module group.

[0048] The size of the box 1 is H300mm*W400mm*D140mm.

[0049] Embodiment 2

[0050] Referring to Figure 3 As shown, the switch module groups have four groups, the lighting switch module group is located at the right side of the bottom plate 3, the firewire interface group is located at the upper left side of the bottom plate 3, the N row 5, the PE row 4 is located at the lower left side of the bottom plate 3, and the PE row 4 is located between the N row 5 and the lighting switch module group.

[0051] The size of the box 1 is H400mm*W500mm*D140mm.

[0052] The number of switch module groups can be set as required, but the preferred corresponding relationship between the number of switch module groups and the size of the box 1 is as follows:

[0053] Switch module group Box 1 size Installable position Applicable place 2 H300*W400*D140 Ceiling, wall hanging Indoor, floodlight 3-4 H400*W500*D140 Ceiling, wall hanging Indoor, floodlight, landscape 5-6 H600*W600*D140 Ceiling, wall hanging Indoor, floodlight, landscape 7-10 H800*W600*D140 Wall hanging Indoor machine room, floodlight, landscape

[0054] The size of the box 1 is selected in the utility model, and the size enables the utility model to be installed in a suspended ceiling in combination with a decoration air conditioner maintenance opening during installation, or to be installed by wall hanging in the vicinity of an outdoor and refuge layer according to the principle of proximity.

[0055] Referring to Figure 4 As shown, when used indoors, preferably, a side plate 8 is opened on the left side wall of the box 1 as an incoming line port, and an outgoing line port is opened on the side wall at the bottom of the box 1. When used outdoors, preferably, an incoming line port and an outgoing line port are opened on the side wall at the bottom of the box 1. Preferably, a detachable buckle is arranged on the incoming line port and the outgoing line port. Thus, the external wiring is clamped.

[0056] Referring to Figure 4 As shown, when used indoors, preferably, 4-6 rows of 95mm*15mm heat dissipation holes 9 are opened at the bottom of the left side wall and the right side wall of the box 1, and the hole spacing is 20mm.

[0057] Referring to Figure 5 As shown, when used outdoors, preferably, 3 rows of 95mm*15mm heat dissipation holes 9 are left at the top. The top of the heat dissipation hole 9 is provided with an outwardly extending outer cover 10. The outer cover 10 is preferably made of a cold-pressed hole flange, and the hole spacing is 20mm. The design of the outer cover 10 can effectively ensure the installation distance between the box 1 and the wall surface, avoid the heat dissipation hole 9 being blocked, and thus ensure the ventilation and heat dissipation of the box 1.

[0058] Referring to Figure 5 As shown in the drawings, when used outdoors, the box 1 can also be provided with a rain cover 11, the periphery of the rain cover 11 protrudes outward from the box 1 by no less than 20 mm, preferably 25 mm. The top of the rain cover 11 is 50 mm higher than the top of the box 1.

[0059] The bottom plate 3 is a plastic plate, the back of the bottom plate 3 is lined with a cold-pressed plate, first bolt holes are opened at both ends of the lighting switch module 7, second bolt holes are opened on the bottom plate 3 at positions corresponding to the first bolt holes, sleeves are arranged in the second bolt holes, and flanges are arranged at the rear end openings of the sleeves (i.e. the openings of the side walls of the sleeves close to the rear side of the box 1). The flanges are pressed between the cold-pressed plate and the plastic plate. Thus, the sleeves are fixed. The sleeves are additionally arranged in the utility model, the connection strength at the position can be increased by using the sleeves, and the problem of wire slipping caused by repeated disassembly can be improved.

[0060] A support column can be arranged on the side wall (rear side wall) of the box far from the opening, and the bottom plate is fixed on the support column by bolts. Thus, a gap is arranged between the bottom plate and the rear side wall, which is beneficial to ventilation and heat dissipation. The support column is preferably an insulating column. Openings outwardly opening notches are preferably arranged at the edges of the bottom plate, the notches are arranged at equal intervals, and the notches surround the periphery of the bottom plate. Thus, the airflow at the rear of the bottom plate is the same as the airflow at the front of the bottom plate by using the notches, and the heat dissipation effect is improved. The size of the notches is preferably matched with the size of the bolts on the support column, so that openings are not additionally arranged on the bottom plate.

[0061] An internal thread is arranged on the inner side wall of the sleeve. The inner diameter of the sleeve gradually decreases from front to rear. The outer diameter of the sleeve is matched with the second bolt hole. Preferably, an external thread is arranged on the outer side wall of the sleeve, and an internal thread matched with the external thread is arranged on the inner side wall of the second bolt hole. Thus, the end opening of the sleeve at the rear is fixed, and the side wall is also fixed by the thread, so that the sleeve can be effectively prevented from shaking during use. Alternatively, a strip-shaped protrusion is arranged on the outer side wall of the sleeve, and a strip-shaped groove is arranged on the inner wall of the second bolt hole, and the strip-shaped protrusion is inserted into the strip-shaped groove. Similarly, the sleeve is also secondarily limited, so that the sleeve can be effectively prevented from shaking during use. The sleeve is preferably a metal sleeve. The terminal for connecting the switch module can be directly fixed on the metal sleeve, and the terminal for connecting the lighting switch module 7 is inserted into the first bolt hole or directly used as the side wall of the first bolt hole. Thus, the connection of the power switch 6 and the lighting switch module 7 can be completed when the metal bolt is screwed into the sleeve to fix the lighting switch module 7.

[0062] It should be noted that the above embodiments are only used to illustrate the technical solutions of the utility model and not to limit the utility model. Although the utility model is described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the utility model can be modified or replaced equivalently without departing from the spirit and scope of the technical solutions of the utility model, and all should be covered in the scope of the claims of the utility model.

Claims

1. A lighting switch power supply installation junction box, comprising a box body with an opening facing forward, wherein the opening of the box body is provided with an openable and closable door, characterized in that: A bottom plate is fixed in the box, and at least two switch module groups are fixed on the bottom plate. The switch module group consists of a lighting switch module, a live wire interface, a neutral wire interface, and a ground wire interface. The live wire interface, the neutral wire interface, and the ground wire interface in the same switch module group are connected to the lighting switch module through wires. The lighting switch modules in different switch module groups are arranged vertically and at equal intervals to form a lighting switch module; An N-row is fixed on the bottom plate, and the neutral line interfaces in different switch module groups are all fixed on the N-row; A PE bus is fixed on the bottom plate, and the ground wire interfaces in different switch module groups are all fixed on the PE bus; The FireWire interfaces in different switch module groups are closely arranged in a row to form a FireWire interface group.

2. A lighting switch power supply installation junction box according to claim 1, characterized in that: There are two groups of switch modules. The lighting switch module is located at the lower part of the base plate, the live wire interface group is located on the upper left side of the base plate, the N row and the PE row are located on the upper right side of the base plate, and the N row is located between the PE row and the lighting switch module.

3. A lighting switch power supply installation junction box according to claim 2, characterized in that: The dimensions of the box are H300mm*W400mm*D140mm.

4. A lighting switch power supply installation junction box according to claim 1, characterized in that: There are four groups of switch modules. The lighting switch module is located on the right side of the base plate, the live wire interface group is located on the upper left side of the base plate, the N row and the PE row are located on the lower left side of the base plate, and the PE row is located between the N row and the lighting switch module.

5. A lighting switch power supply installation junction box according to claim 4, characterized in that: The dimensions of the box are H400mm*W500mm*D140mm.

6. A lighting switch power supply installation junction box according to any one of claims 1 to 5, characterized in that: An inlet port is provided on the left side wall or the side wall at the bottom of the box body, and an outlet port is provided on the side wall at the bottom of the box body.

7. A lighting switch power supply installation junction box according to claim 6, characterized in that: The line inlet port and the line outlet port are both provided with detachable buckles.

8. A lighting switch power supply installation junction box according to any one of claims 1 to 5, characterized in that: The bottom of the left and right walls of the box body are provided with 4-6 rows of 95mm*15mm heat dissipation holes, the hole spacing of the heat dissipation holes is 20mm, and the top of the heat dissipation holes is provided with an outer shielding edge extending outward.

9. A lighting switch power supply installation junction box according to any one of claims 1 to 5, characterized in that: A rain cover is connected to the top of the box body, and the four sides of the rain cover protrude from the outside of the box body by no less than 20 mm, and the top of the rain cover is 50 mm higher than the top of the box body.

10. A lighting switch power supply installation junction box according to any one of claims 1 to 5, characterized in that: The base plate is a plastic plate, the back of which is lined with a cold-pressed plate. First bolt holes are provided at both ends of the lighting switch module, and second bolt holes are provided on the base plate at positions corresponding to the first bolt holes. A sleeve is provided in the second bolt hole, and a flange is provided at the rear end of the sleeve, which is pressed between the cold-pressed plate and the plastic plate.

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