A zero-ground row installation structure in a distribution box

Abstract

The present application relates to the field of neutral-ground bar technology, and in particular to a neutral-ground bar installation structure in a distribution box, which includes a distribution box body, the distribution box body includes a box body, a mounting plate installed in the box body, a combination bracket is arranged on the mounting plate, the neutral bar and the ground bar are both fixed on the combination bracket, and a clamping structure for quickly clamping and fixing the combination bracket is arranged on the mounting plate. The present application achieves the purpose of installing the neutral bar and the ground bar in the box by first fixing the neutral bar and the ground bar on the combination bracket outside the box, and then quickly clamping the combination bracket on the mounting plate through the clamping structure, so as to achieve the purpose of installing the neutral bar and the ground bar in the box, and has the effect of simple and quick installation process.

Description

Technical Field

[0001] The present application relates to the technical field of neutral-to-ground bars, and in particular to a neutral-to-ground bar installation structure in a distribution box. Background Art

[0002] The neutral-ground bus, which includes the neutral wire bus and the grounding bus, is an important component in the electrical system. It is mainly used to connect the neutral wire or grounding wire of electrical equipment together to ensure the safe and stable operation of the electrical system.

[0003] In the distribution box, the neutral bus and grounding bus are usually installed near the electrical equipment. Then the neutral wires of multiple electrical equipment are gathered on one bus, and the grounding wires are gathered on another bus. Then, the two buses are connected to the power supply bus and grounding wire respectively, so as to simplify the wiring of the electrical system and improve the reliability and safety of the system.

[0004] At present, in the distribution box, the connection method of the neutral bar and the grounding bar is to fix them by bolts, that is, the neutral bar is taken to the designated installation position in the distribution box, and then the neutral bar is fixed with one hand, and the installation tool such as a screwdriver is taken with the other hand to bolt the neutral bar in the distribution box, and then the grounding bar is installed in the distribution box in the same way; however, in the above installation process, since there are many electrical equipment and wires in the distribution box and the space in the distribution box is limited, when using the installation tools to install the neutral bar and the grounding bar, it is easy to be affected by the electrical equipment and wires, and the installation process is relatively inconvenient. Utility Model Content

[0005] In order to solve the problem in the prior art that when using matching tools to install the neutral ground bar in a distribution box, it is easily affected by electrical equipment and wires, resulting in a relatively inconvenient installation process, the present application provides a neutral ground bar installation structure in a distribution box.

[0006] The present application provides a zero-ground bar installation structure in a distribution box, which adopts the following technical solution:

[0007] A neutral bar and ground bar installation structure in a distribution box, comprising a distribution box body, wherein the distribution box body comprises a box body, a mounting plate installed in the box body for installing electrical equipment, a combined bracket is arranged on the mounting plate, a neutral bar and a ground bar are both fixed on the combined bracket, and a clamping structure for quickly clamping and fixing the combined bracket is arranged on the mounting plate.

[0008] By adopting the above technical solution, when in use, the staff can first assemble the neutral bus and the grounding bus with the combined bracket outside the box, and then take the combined bracket into the box, and quickly clamp the combined bracket on the mounting plate through the clamping structure, so as to achieve rapid installation of the neutral bus and the grounding bus. The installation process is simple and convenient, and it also avoids the problem of being easily affected by electrical equipment and wires when using special installation tools to work in the box.

[0009] Preferably, the combined bracket includes an insulating frame, the insulating frame is provided with a first mounting hole for installing a neutral line bar and a second mounting hole for installing a grounding bar, and the insulating frame is also provided with a connector for electrically connecting the grounding bar to a mounting plate.

[0010] By adopting the above technical solution, an insulating layer is formed by an insulating frame made of insulating material during use, and then the neutral line bus is installed on the insulating frame, that is, the insulating frame replaces the insulator required for the installation of the neutral line bus, so as to avoid the circuit conduction between the neutral line bus and the mounting plate affecting the safety of the distribution box, and the use is more convenient; at the same time, the circuit between the grounding bus and the mounting plate is connected through the connecting piece, so as to avoid the insulating frame affecting the effect of the grounding bus to guide the circuit into the ground through the mounting plate.

[0011] Preferably, the connecting member comprises a metal conductor, the metal conductor is embedded in the second mounting hole, one end of the metal conductor abuts against the mounting plate, and the other end of the metal conductor is provided with a threaded hole for connecting to a grounding bar.

[0012] By adopting the above technical solution, when in use, a conductive metal conductor is used to abut against the mounting plate, and the grounding bar is threadedly connected to the metal conductor through conductive bolts, so that the metal conductor is electrically connected to the mounting plate and the grounding bar at the same time, thereby ensuring the normal use of the grounding bar.

[0013] Preferably, the clamping structure comprises a slide rail fixed on the mounting plate, and the insulating frame is provided with a slide groove for inserting the slide rail.

[0014] By adopting the above technical solution, the insulating frame can be slid onto the slide rail along the length direction of the slide rail during use, and the abutment limit between the slide groove and the slide rail can prevent the insulating frame from detaching from the slide rail without external force, thereby achieving quick installation of the insulating frame in the box, and further achieving quick installation of the neutral bus and the grounding bus.

[0015] Preferably, the slide rail is provided with an avoidance notch for facilitating the insertion of the insulating frame onto the slide rail.

[0016] By adopting the above technical solution, an avoidance notch is opened on the slide rail during use, which makes it easier for workers to install the insulating frame on the mounting plate without having to move the insulating frame to the end of the slide rail before plugging it into the slide rail, making it more convenient to use.

[0017] Preferably, a mounting groove is provided on the slide rail, and a positioning component for preventing the insulating frame from sliding is arranged in the mounting groove.

[0018] By adopting the above technical solution, the insulating frame is positioned by the positioning assembly during use, thereby preventing the insulating frame from sliding and increasing the stability of the insulating frame installed on the mounting plate.

[0019] Preferably, the positioning assembly includes an insert block sliding in the mounting groove, a return spring arranged in the mounting groove, a slot for embedding the insert block is opened on the insulating frame, one end of the return spring is fixed to the bottom wall of the mounting groove, and the other end of the return spring is fixedly connected to the insert block, and a driving member for driving the insert block out of the slot is provided on the slide rail.

[0020] By adopting the above technical solution, the reset spring is used to squeeze the plug block so that the plug block is inserted into the slot, thereby realizing the card-connection and positioning of the insulating frame. When disassembly is required, the staff can drive the plug block to slide out of the slot through the driving member, thereby facilitating the installation and disassembly of the insulating frame.

[0021] Preferably, the driving member includes a pressing block sliding on the slide rail, a connecting rod is provided between the pressing block and the insert block, one end of the connecting rod is fixedly connected to the pressing block, the other end of the connecting rod is fixedly connected to the insert block, and the connecting rod slides in the slide rail.

[0022] By adopting the above technical solution, when in use, the pressing block is pressed down, and driven by the connecting rod, the plug block is synchronously slid to disengage from the slot, thereby achieving the purpose of driving the plug block to slide.

[0023] Preferably, a first guiding bevel is provided on the insert block, and a second guiding bevel for cooperating with the first guiding bevel is provided on the insulating frame.

[0024] By adopting the above technical solution, the first guide bevel and the second guide bevel are used in coordination during use, which makes it convenient for workers to install the insulating frame on the slide rail, thereby facilitating use.

[0025] In summary, the present application includes at least one of the following beneficial technical effects:

[0026] 1. When in use, the staff first assembles the neutral bar and the ground bar to the combined bracket outside the box, and then takes the combined bracket into the box, and quickly connects the combined bracket through the clamping structure, so as to achieve the purpose of installing the neutral bar and the ground bar in the box. The overall installation process is simple and convenient, and more convenient to use;

[0027] 2. When in use, the combination bracket can be quickly assembled by using the slide rail and the slide groove. Compared with the existing technology, no special installation tools are required, which is more convenient to use;

[0028] 3. After the insulating bracket is installed on the slide rail, the positioning assembly and the driving component are used in coordination to ensure the installation stability of the insulating bracket without affecting the speed of the insulating bracket installation process. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 It is an axonometric diagram mainly showing the overall structure in the first embodiment of the present application;

[0030] Figure 2 It is an axonometric diagram mainly showing the structure of the mounting plate in the first embodiment of the present application;

[0031] Figure 3 It is an exploded view mainly showing the connection structure of the mounting plate and the combined bracket in the first embodiment of the present application;

[0032] Figure 4 It is an exploded view mainly showing the structure of the combined bracket in the first embodiment of the present application;

[0033] Figure 5 It is an axonometric diagram mainly showing the structure of the mounting plate in the second embodiment of the present application;

[0034] Figure 6 It is an exploded view mainly showing the insulating frame structure in the second embodiment of the present application;

[0035] Figure 7 It is a cross-sectional view mainly showing the insulating frame structure in the second embodiment of the present application;

[0036] Figure 8 It is an axonometric diagram mainly showing the structure of the positioning assembly in the second embodiment of the present application.

[0037] Figure numerals: 1. Box body; 11. Installation cavity; 2. Installation plate; 3. Outer door panel; 4. Combined bracket; 41. Insulating frame; 411. First installation hole; 412. Second installation hole; 413. Slide groove; 414. Slot; 415. Second guide slope; 42. Connector; 421. Metal conductor; 422. Threaded hole; 5. Snap-fit ​​structure; 51. Slide rail; 52. Avoidance notch; 53. Installation groove; 6. Positioning assembly; 61. Insert block; 611. First guide slope; 62. Reset spring; 7. Driving member; 71. Pressing block; 72. Connecting rod; 8. Neutral bar; 9. Grounding bar. DETAILED DESCRIPTION

[0038] The following is combined with Figure 1 -Attached Figure 8 This application is described in further detail.

[0039] An embodiment of the present application discloses a zero-ground bar installation structure in a distribution box.

[0040] Embodiment 1:

[0041] Reference Figure 1 and Figure 2 A zero-ground row installation structure in a distribution box includes a horizontally placed distribution box body, the distribution box body consists of a box body 1, a mounting plate 2 and an outer door panel 3, a mounting cavity 11 is opened on the box body 1, the mounting plate 2 is fixed to the bottom wall of the mounting cavity 11 by bolts, the outer door panel 3 is hinged on the box body 1, the outer door panel 3 is used to block the opening of the mounting cavity 11, and the mounting plate 2 is used to install electrical equipment.

[0042] Reference Figure 2 and Figure 3 A combined bracket 4 and a clamping structure 5 are provided on the mounting plate 2. Multiple groups of combined brackets 4 and clamping structures 5 can be provided, and one group of combined brackets 4 corresponds to one group of clamping structures 5. In the present embodiment, the combined bracket 4 and the clamping structure 5 are preferably provided in two groups, and the two groups of combined brackets 4 and the two groups of clamping structures 5 are respectively located at the two ends of the bottom end of the mounting plate 2. The combined bracket 4 is used to install the neutral line row 8 and the grounding row 9, and the clamping structure 5 is used to quickly clamp the combined bracket 4 on the mounting plate 2.

[0043] Reference Figure 2 and Figure 3 When in use, the staff can first assemble the neutral wire bar 8 and the grounding bar 9 with the combined bracket 4 outside the box 1, and then take the combined bracket 4 installed with the neutral wire bar 8 and the grounding bar 9 to the installation position, and clamp the combined bracket 4 on the mounting plate 2 through the clamping structure 5, so as to realize the installation of the neutral wire bar 8 and the grounding bar 9 in the box 1.

[0044] Reference Figure 3 and Figure 4The combined bracket 4 includes an insulating frame 41, which is a hard block structure made of a hard insulating material. In this embodiment, DMC dioxide acrylate is preferably used. A first mounting hole 411 and a second mounting hole 412 are opened on the top surface of the insulating frame 41. Two first mounting holes 411 and two second mounting holes 412 are provided, and the two first mounting holes 411 are located at both ends of the insulating frame 41, and the two second mounting holes 412 are also located at both ends of the insulating frame 41. The first mounting hole 411 is used to connect the neutral line bar 8, and the second mounting hole 412 is used to connect the grounding bar 9.

[0045] Reference Figure 3 and Figure 4 When in use, in a conventional distribution box, an insulator is usually required to be arranged between the neutral line row 8 and the mounting plate 2 to prevent the current on the neutral line row 8 from being introduced into the mounting plate 2. In this embodiment, by adopting an insulating frame 41 to replace the insulator, that is, installing the neutral line row 8 on the insulating frame 41, it is possible to prevent the current of the neutral line row 8 from being introduced into the mounting plate 2 without adding an additional insulator, thereby facilitating use.

[0046] Reference Figure 3 and Figure 4 In order to prevent the insulating frame 41 from affecting the conduction of current between the grounding bar 9 and the mounting plate 2, two connecting members 42 are provided on the insulating frame 41. The connecting members 42 are selected to be metal conductors 421 made of conductive metal. In this embodiment, the metal conductors 421 are cylindrical, and the two metal conductors 421 are respectively inserted into a second mounting hole 412. The bottom end of the metal conductor 421 passes through the second mounting hole 412 and abuts against the mounting plate 2.

[0047] Reference Figure 3 and Figure 4 A threaded hole 422 is formed at the top of the metal conductor 421 along its own axial direction. In this embodiment, internal threads are formed in the first mounting hole 411 and the threaded hole 422. When in use, the neutral line bar 8 can be fixed to the combined bracket 4 by passing the bolt through the neutral line bar 8 and threadedly connected to the first mounting hole 411; and the grounding bar 9 can be fixed to the combined bracket 4 by passing the bolt through the grounding bar 9 and threadedly connected to the threaded hole 422, thereby realizing the assembly of the neutral line bar 8, the grounding bar 9 and the combined bracket 4.

[0048] Reference Figure 3 and Figure 4The clamping structure 5 includes a slide rail 51, which is fixedly connected to the mounting plate 2 by bolts. The slide rail 51 can be selected to have an I-shaped, dovetail or T-shaped transverse cross section. In the present embodiment, the slide rail 51 is preferably set to have an I-shaped transverse cross section. A slide groove 413 is provided on the bottom end surface of the insulating frame 41. The slide groove 413 is used for the slide rail 51 to be inserted. The slide groove 413 runs through the length direction of the insulating frame 41. When in use, the insulating frame 41 is taken to the end of the slide rail 51, and the end of the slide rail 51 is aligned with the slide groove 413. Then, the insulating frame 41 is slid to make the slide rail 51 slide into the slide groove 413, so that the insulating frame 41 can be clamped on the slide rail 51, thereby realizing the quick clamping of the insulating frame 41 on the mounting plate 2.

[0049] Reference Figure 3 and Figure 4 Due to the size of the space in the distribution box and the location of the installed electrical equipment and wires, in order to avoid the above factors affecting the clamping and fixing of the insulating frame 41, an avoidance notch 52 is opened on the slide rail 51, and the avoidance notch 52 can facilitate the insulating frame 41 to be inserted into the slide rail 51 along the height direction of the slide rail 51; when in use, the staff only needs to move the insulating frame 41 to align with the avoidance notch 52, and then press down the insulating frame 41 so that the slide rail 51 is embedded in the slide groove 413, and then move the insulating frame 41 along the length direction of the slide rail 51 to achieve the clamping of the insulating frame 41 on the slide rail 51.

[0050] The implementation principle of the embodiment of the present application is: when in use, the staff can first bolt the neutral wire bar 8 and the grounding bar 9 to the combined bracket 4 outside the box body 1, and then move the combined bracket 4 installed with the neutral wire bar 8 and the grounding bar 9 to the position where the avoidance notch 52 is opened on the slide rail 51, and press the combined bracket 4 down until the top surface of the slide rail 51 is embedded in the slide groove 413, and then slide the combined bracket 4 along the length direction of the slide rail 51. When the combined bracket 4 slides to the point where it can no longer slide, the purpose of quickly installing the combined bracket 4 on the mounting plate 2 can be achieved. Compared with the prior art, the overall installation process can achieve quick installation of the neutral wire bar 8 and the grounding bar 9 without the aid of installation tools, and is simple and convenient to use.

[0051] The difference between the second embodiment and the first embodiment is that:

[0052] Reference Figure 5 and Figure 6A mounting groove 53 is provided on the top surface of the slide rail 51, and a positioning assembly 6 is provided in the mounting groove 53. The positioning assembly 6 is used to clamp and position the insulating frame 41 on the slide rail 51 to prevent the insulating frame 41 from sliding. When in use, after the insulating frame 41 is slid onto the slide rail 51, the insulating frame 41 can be fixed by the positioning assembly 6 to prevent the insulating frame 41 from detaching from the slide rail 51 without being affected by external force, thereby increasing the stability of the insulating frame 41 installed on the mounting plate 2.

[0053] Reference Figure 6 and Figure 7 The positioning assembly 6 includes an insert block 61 and a return spring 62. The insert block 61 slides in the mounting groove 53 along the depth direction of the mounting groove 53. The return spring 62 is located between the bottom wall of the mounting groove 53 and the bottom end of the insert block 61. One end of the return spring 62 is welded and fixed to the bottom wall of the mounting groove 53, and the other end of the return spring 62 is welded to the insert block 61. A slot 414 is provided at the top of the insulating frame 41. When the return spring 62 is in a normal state and the insulating frame 41 is installed on the slide rail 51, the insert block 61 can be partially inserted and embedded in the slot 414, so that the insulating frame 41 can be positioned by the insert block 61.

[0054] Reference Figure 7 and Figure 8 At the same time, in order to avoid the problem that the plug block 61 cannot be separated from the slot 414, resulting in the inability to disassemble the insulating frame 41, a driving member 7 is provided on the slide rail 51, and the driving member 7 is used to drive the plug block 61 to slide to disengage from the slot 414. The driving member 7 includes a pressing block 71, and the pressing block 71 is located on the outside of the slide rail 51. A connecting rod 72 is provided between the pressing block 71 and the plug block 61. One end of the connecting rod 72 is welded and fixed to the side wall of the plug block 61, and the other end of the connecting rod 72 passes through the slide rail 51 and is welded and fixed to the pressing block 71, and the connecting rod 72 slides as a whole in the slide rail 51; when in use, the staff can drive the connecting rod 72 to slide by pressing the pressing block 71, and the movement of the connecting rod 72 synchronously drives the plug block 61 to slide. When the plug block 61 is completely separated from the slot 414, the insulating frame 41 can be disassembled.

[0055] Reference Figure 7 and Figure 8In order to prevent the insert block 61 from affecting the sliding of the insulating frame 41 when the staff installs the insulating frame 41 on the slide rail 51, a first guide bevel 611 is provided on the insert block 61, and a second guide bevel 415 is correspondingly provided on the insulating frame 41, and the first guide bevel 611 and the second guide bevel 415 are arranged in a normal manner; when in use, through the cooperation of the first guide bevel 611 and the second guide bevel 415, when the insulating frame 41 slides, the insert block 61 can be pressed down, so that the reset spring 62 is gradually compressed, until the insulating frame 41 moves to the specified position, the slot 414 is aligned with the insert block 61, and at this time, under the elastic force of the reset spring 62, the insert block 61 slides and resets to the insertion slot 414, so that the positioning of the insulating frame 41 can be achieved.

[0056] The implementation principle of the embodiment of the present application is as follows: when in use, the staff can first bolt the neutral line bar 8 and the grounding bar 9 to the insulating frame 41 outside the box 1, and then move the insulating frame 41 with the neutral line bar 8 and the grounding bar 9 installed to the position where the avoidance notch 52 is opened on the slide rail 51, and press the insulating frame 41 down until the top surface of the slide rail 51 is embedded in the slide groove 413, and then slide the insulating frame 41 along the length direction of the slide rail 51. When the insulating frame 41 slides, the plug 61 is pressed down by the insulating frame 41, and the reset spring 62 is compressed synchronously. When the insulating frame 41 slides to the point where it can no longer slide, the plug block 61 slides and resets under the elastic force of the reset spring 62 until the plug block 61 is inserted into the slot 414, thereby achieving the purpose of quickly installing the insulating frame 41 on the mounting plate 2; when the insulating frame 41 needs to be removed, the staff only needs to press down the pressing block 71 to drive the plug block 61 to move down until it is completely out of the slot 414, and then the insulating frame 41 can be removed from the mounting plate 2 by sliding the insulating frame 41. The overall installation process is simple, fast, and more convenient to use.

[0057] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A zero-ground bar installation structure in a distribution box, comprising a distribution box body, characterized in that: The distribution box body comprises a box body (1), a mounting plate (2) installed in the box body (1) for mounting electrical equipment, a combined bracket (4) is arranged on the mounting plate (2), a neutral line bar (8) and a grounding bar (9) are both fixed on the combined bracket (4), and a clamping structure (5) for quickly clamping and fixing the combined bracket (4) is arranged on the mounting plate (2).

2. According to the zero-ground bar installation structure in the distribution box of claim 1, it is characterized by: The combined bracket (4) comprises an insulating frame (41), the insulating frame (41) being provided with a first mounting hole (411) for mounting a neutral line bar (8) and a second mounting hole (412) for mounting a ground bar (9), and the insulating frame (41) is also provided with a connector (42) for electrically connecting the ground bar (9) to the mounting plate (2).

3. According to the zero-ground bar installation structure in the distribution box of claim 2, it is characterized by: The connecting member (42) comprises a metal conductor (421), the metal conductor (421) is embedded in the second mounting hole (412), and a threaded hole (422) for connecting to a grounding bar (9) is provided on the metal conductor (421).

4. The zero-ground bar installation structure in a distribution box according to claim 2, characterized in that: The clamping structure (5) comprises a slide rail (51) fixed on the mounting plate (2), and a slide groove (413) for inserting the slide rail (51) is provided on the insulating frame (41).

5. The zero-ground bar installation structure in a distribution box according to claim 4, characterized in that: The slide rail (51) is provided with an escape notch (52) for facilitating the insertion of the insulating frame (41) on the slide rail (51).

6. The zero-ground bar installation structure in a distribution box according to claim 5, characterized in that: The slide rail (51) is provided with a mounting groove (53), and a positioning component (6) for preventing the insulating frame (41) from sliding is arranged in the mounting groove (53).

7. The zero-ground bar installation structure in a distribution box according to claim 6, characterized in that: The positioning assembly (6) includes an insert block (61) sliding in the mounting groove (53) and a return spring (62) arranged in the mounting groove (53); a slot (414) for embedding the insert block (61) is provided on the insulating frame (41); one end of the return spring (62) is fixed to the bottom wall of the mounting groove (53); the other end of the return spring (62) is fixedly connected to the insert block (61); and a driving member (7) for driving the insert block (61) to disengage from the slot (414) is provided on the slide rail (51).

8. The zero-ground bar installation structure in a distribution box according to claim 7, characterized in that: The driving member (7) comprises a pressing block (71) that slides on the slide rail (51); a connecting rod (72) is provided between the pressing block (71) and the inserting block (61); one end of the connecting rod (72) is fixedly connected to the pressing block (71); the other end of the connecting rod (72) is fixedly connected to the inserting block (61); and the connecting rod (72) slides in the slide rail (51).

9. The zero-ground bar installation structure in a distribution box according to claim 7, characterized in that: The insert block (61) is provided with a first inclined guide surface (611), and the insulating frame (41) is provided with a second inclined guide surface (415) for matching with the first inclined guide surface (611).

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