Alternating current distribution box

Abstract

The utility model relates to an alternating current distribution box which comprises a box body and a box door arranged on the box body, and the box door can move relative to the box body to open or close the box body. A fixing plate and a limiting plate are arranged in the box body, one end, facing the box door, of the fixing plate is fixedly connected with the limiting plate and forms a preset angle, and one end, deviating from the box door, of the fixing plate is fixedly connected with the inner wall of the box body, so that the inner wall, fixedly connected with the fixing plate, of the box body, the fixing plate and the limiting plate define a cable slot for accommodating a cable. Weak current cables are arranged in the wire ducts, and strong current cables are arranged between the limiting plates and the box door. The box body is provided with a strong current cable joint and a weak current cable joint. A strong-current cable and a weak-current cable can be separated through the wire duct, the weak-current cable is placed in the wire duct, the strong-current cable is placed outside the wire duct, and the weak-current cable in the wire duct is not prone to disengaging from the wire duct through the fixing plate and the limiting plate. Therefore, the strong and weak cables are placed separately without mutual interference, and signals are not fluctuated.

Description

Technical Field

[0001] The present application relates to the technical field of distribution boxes, and in particular to an AC distribution box. Background Art

[0002] The AC distribution box is a low-voltage power distribution device that is composed of switch devices, interactive devices, communication devices and control devices assembled in a closed or semi-enclosed metal cabinet or on a screen according to the requirements of electrical wiring. During normal operation, the circuit is closed or disconnected with the help of manual or automatic switch devices; in case of faults or abnormal operation, the circuit can be cut off or an alarm can be sounded with the help of protective electrical appliances. The interactive device can display various parameters during operation, and can also adjust certain electrical parameters to prompt or send signals when deviating from the normal working state. The communication device can package and transmit various information of the AC distribution box. The control device can realize the logical control of the AC distribution box on itself or its upper and lower devices by closing and disconnecting the device. AC distribution boxes are often used in various power generation, distribution and substations.

[0003] In the existing technology, AC distribution box is suitable for power transmission and distribution system of urban and rural power grid with AC 50Hz and rated voltage below 0.4kV. It has the characteristics of small size, easy installation, special technical performance, fixed position, unique configuration function, no site restriction, relatively common application, stable and reliable operation, high space utilization, small footprint and environmental protection effect; it has the functions of power distribution, computer detection, overcurrent protection, low voltage lightning protection, etc.

[0004] The current AC distribution box structure and internal layout are a mixture of strong and weak cables, which can easily cause signal instability. Summary of the invention

[0005] Based on this, it is necessary to provide a new AC distribution box structure to solve the problem of mixed placement of strong and weak cables in the current AC distribution box. It includes:

[0006] A box body and a box door arranged on the box body, wherein the box door can move relative to the box body to open or close the box body;

[0007] A fixing plate and a limiting plate are provided inside the box body, one end of the fixing plate facing the box door is fixedly connected to the limiting plate at a preset angle, and one end of the fixing plate facing away from the box door is fixedly connected to the inner wall of the box body, so that the inner wall of the box body fixedly connected to the fixing plate, the fixing plate and the limiting plate surround a wire outlet groove;

[0008] The wire trough is used to install weak-current cables, and the space between the limit plate and the box door is used to install strong-current cables;

[0009] The box body is provided with a strong current cable connector for passing the strong current cable through and a weak current cable connector for passing the weak current cable through.

[0010] In one embodiment, the wire trough is formed by two fixed plates, a limiting plate and a box body. The two fixed plates are arranged opposite to each other and one end in the same direction is fixedly connected to the box body. The limiting plate is buckled on the other end in the same direction of the two fixed plates to close the wire trough.

[0011] In one embodiment, it also includes a switch device, which is located on the inner side of the box door and fixedly connected to the box door;

[0012] The box door is provided with a first window to expose the operating end of the switch device; the switch cable of the switch device passes through the high-voltage cable connector.

[0013] In one embodiment, an interactive device is further included, the interactive device is located inside the box door and is fixedly connected to the box door, and the box door is provided with a second window to expose the operating end of the interactive device;

[0014] The interactive device passes through the interactive cable, through the cable duct, and then through the weak-current cable connector.

[0015] In one of the embodiments, a communication device is further included. The communication device is located in the box and fixedly connected to the box. A communication cable of the communication device passes through a wire trough and then passes through a weak-current cable connector.

[0016] In one of the embodiments, a control device is further included. The control device is located in the box and fixedly connected to the box. A control cable of the control device passes through a wire trough and then passes through a weak-current cable connector.

[0017] In one embodiment, the box body includes a side wall and a rear wall, the side wall and the rear wall are fixedly connected, and when the box door is in a closed state, the rear wall is arranged opposite to the box door;

[0018] The side wall is provided with a fan and ventilation holes; the fan is located in the box body and is fixedly connected to the side wall.

[0019] In one embodiment, the side wall includes a top wall and a bottom wall, the fan is fixedly connected to the top wall, and a ventilation hole is provided on the bottom wall.

[0020] In one of the embodiments, a filter port is provided on the top wall, and the fan is connected to the filter port.

[0021] In one of the embodiments, a temperature sensor is provided in the fan, and the temperature sensor is used to detect the temperature in the box to control the rotation speed of the fan.

[0022] In one of the embodiments, a plurality of rivet nuts are provided on the box body to fix the positions of the plurality of devices in the box body.

[0023] The AC distribution box provided by the present application can separate strong current cables from weak current cables through the wire troughs. The weak current cables are placed inside the wire troughs, and the strong current cables are placed outside the wire troughs. The weak current cables in the wire troughs are not easy to escape from the wire troughs through the fixing plates and the limiting plates. Thus, the strong and weak cables are placed separately without interfering with each other, and the signal will not be affected by fluctuations. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 is a schematic diagram of the structure of an AC distribution box.

[0025] FIG. 2 is a front view of the AC distribution box with the box door closed.

[0026] Figure numerals: box body 1; fixing plate 101; limiting plate 102; rear wall 104; top wall 105; bottom wall 106; rivet nut 107; box door 2; door lock 201; hinge 202; switch device 3; interactive device 4; communication device 5; control device 6; fan 7; ventilation hole 701; filter port 702; high-voltage cable connector 8; low-voltage cable connector 9. DETAILED DESCRIPTION

[0027] In order to make the above-mentioned purposes, features and advantages of the present application more obvious and easy to understand, the specific implementation methods of the present application are described in detail below in conjunction with the accompanying drawings. In the following description, many specific details are set forth to facilitate a full understanding of the present application. However, the present application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without violating the connotation of the present application, so the present application is not limited by the specific embodiments disclosed below.

[0028] In the description of the present application, it should be understood that if the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. appear, the orientation or position relationship indicated by these terms is based on the orientation or position relationship shown in the accompanying drawings, which is only for the convenience of describing the present application and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present application.

[0029] In addition, if the terms "first" or "second" appear, these terms are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of the features. In the description of this application, if the term "plurality" appears, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0030] In this application, unless otherwise clearly specified and limited, if the terms "installed", "connected", "connected", "fixed" and the like appear, these terms should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integrated connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to the specific circumstances.

[0031] In the present application, unless otherwise clearly specified and limited, if there is a description that a first feature is "above" or "below" a second feature, etc., or similar descriptions appear, it may mean that the first and second features are in direct contact, or that the first and second features are in indirect contact through an intermediate medium. Moreover, the first feature being "above", "above" and "above" the second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. The first feature being "below", "below" and "below" the second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0032] It should be noted that if an element is referred to as being "fixed to" or "disposed on" another element, it may be directly on the other element or there may be a central element. If an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. If any, the terms "vertical", "horizontal", "upper", "lower", "left", "right" and similar expressions used in this application are for illustrative purposes only and do not represent the only implementation method.

[0033] At present, the structure of the AC distribution box body 1 on the market is relatively simple, and most of them are empty boxes 1. Some AC distribution boxes separate the internal space to place different electrical components, but do not classify and organize the cables of the electrical components, or do not have a structure to process the cables. As a result, the cables of the high-current components and low-current components in the AC distribution box are in a chaotic state. The chaotic arrangement causes the high-current cables to affect the signal transmission of the low-current cables, thereby affecting the use of the electrical components.

[0034] Referring to FIG. 1 , the present application provides an AC distribution box, comprising a box body 1 and a box door 2 disposed on the box body 1 , wherein the box door 2 can move relative to the box body 1 to open or close the box body 1 .

[0035] Referring to Fig. 1 and Fig. 2, a fixing plate 101 and a limiting plate 102 are provided inside the box body 1. The end of the fixing plate 101 facing the box door 2 is fixedly connected to the limiting plate 102 and is at a preset angle. The end of the fixing plate 101 facing away from the box door 2 is fixedly connected to the inner wall of the box body 1, so that the inner wall of the box body 1 fixedly connected to the fixing plate 101, the fixing plate 101, and the limiting plate 102 are surrounded by a wire groove for accommodating cables. The wire groove is used to set weak-current cables, and the space between the limiting plate 102 and the box door 2 is used to set strong-current cables; the box body 1 is provided with a strong-current cable connector 8 for connecting with the strong-current cables and a weak-current cable connector 9 for connecting with the weak-current cables.

[0036] In the above embodiment, the box door 2 shown in FIG. 1 can rotate relative to the box body 1, and the rotational movement can be achieved through the hinge 202 or hinge. In other embodiments, the box door 2 can also slide relative to the box body 1, which can be achieved only by a slide groove and a pulley. After the box door 2 is closed, the box door 2 can be locked by the door lock 201.

[0037] Refer to FIG2, which shows a cross-sectional view of the fixing plate 101 and the limiting plate 102 installed on the rear wall 104. After the box door 2 is closed, the rear wall 104 is opposite to the box door 2. In fact, the fixing plate 101 can be installed on the side wall of the box body 1, or on any inner wall of the box body 1, such as the top wall 105, the bottom wall 106, the rear wall 104, etc. The fixing plate 101 is preferably connected to the inner wall vertically, and of course, according to different needs, it can also be connected at an acute angle, such as making the cross-sectional shape of the wire trough a right triangle or an acute triangle, so as to compress the space of the wire trough and limit the movement of the cables in the wire trough.

[0038] The cross-sectional shape of the limiting plate 102 and the fixing plate 101 can be "L" shaped to place cables on one side, or "T" shaped to place cables on both sides. At the same time, the limiting plate 102 can be "L" shaped to close the enclosed cable trough as much as possible, leaving only a small gap for the removal and placement of the cables.

[0039] In the present application, the wire trough is used to place weak-current cables, and strong-current cables are placed outside the wire trough. The arrangement of the wire trough is related to the number of strong-current devices and weak-current devices and their positions in the box 1. If there are many strong-current devices, the wire trough can be used to place strong-current cables, and vice versa. In this way, the strong-current cables and weak-current cables can be separated by the wire trough, and the strong-current cables and weak-current cables can be placed in the wire troughs that are far apart. In this way, the strong-current cables and weak-current cables can be separated in space to avoid mutual interference between the two. The AC distribution box provided in the present application can achieve the separation of strong and weak cables, so that the strong and weak cables can be placed separately without interfering with each other, and the signal will not receive the effect of fluctuation.

[0040] Referring to FIG. 1 , in one embodiment, the wire trough is formed by two fixed plates 101 , a limiting plate 102 and a box body 1 . The two fixed plates 101 are arranged opposite to each other and one end in the same direction is fixedly connected to the box body 1 . The limiting plate 102 is buckled on the other end in the same direction of the two fixed plates 101 to close the wire trough.

[0041] Specifically, as can be seen from FIG. 1 , the cross-sectional shape of the limiting plate 102 and the fixing plate 101 can be a “mouth” shape, so that the weak-current cable can be completely placed in the cable trough and will not be separated from the cable trough 103, thereby realizing the separation of the weak-current cable and the strong-current cable. The limiting plate 102 can be fastened to the fixing plate 101 in the form of tape, double-sided tape, etc., to achieve a fixed connection, which is also convenient for subsequent disassembly.

[0042] Referring to Figures 1 and 2, in one embodiment, it also includes a switch device 3, which is located on the inner side of the box door 2 and fixedly connected to the box door 2; the box door 2 is provided with a first window to expose the operating end of the switch device 3; the switch cable of the switch device 3 passes through the high-voltage cable connector 8 and is connected to the external power supply equipment.

[0043] Specifically, the switch device 3 is a high-voltage device, which is a switching device that can close, carry and disconnect current under normal circuit conditions, including but not limited to switch devices 3 such as miniature circuit breakers. It needs to be connected to the high-voltage cable connector 8. The cables are omitted in Figures 1 and 2, but it is not difficult to imagine the distribution of cables and the wiring in the AC distribution box. In Figure 1, the switch device 3 is located at the bottom of the distribution box. Since there are fewer high-voltage devices and cables in the AC distribution box, the high-voltage cables can be arranged outside the wire trough. When the box door 2 is opened, the cable of the switch device 3 will be suspended, one end is connected to the switch device 3, and the other end extends to the high-voltage cable connector 8 and is connected to it.

[0044] Since there are many devices in the distribution box, the switch device 3 is placed on the box door 2 and the operating end is exposed through the window, so that the control of the AC distribution box and the closing and disconnection of the circuit can be completed without opening the box door 2, which is beneficial to reducing the safety risks of the staff.

[0045] Preferably, a movable shielding object may be provided on the first window to prevent foreign objects from entering the box body 1 or accidentally touching the switch device 3 .

[0046] Referring to FIG. 1 , in one embodiment, an interactive device 4 is also included. The interactive device 4 is a device that can realize human-computer interaction, such as a display screen, an electric energy meter and other display devices. The interactive device 4 is located on the inner side of the box door 2 and is fixedly connected to the box door 2. The box door 2 is provided with a second window to expose the operating end of the interactive device 4. In this way, the relevant parameters of the AC distribution box can be known and corresponding judgments can be made without opening the box door 2.

[0047] The interactive device 4 is a weak current device, so the interactive cable can be bundled with other weak current cables and then put into the cable duct. After passing through the cable duct, it passes through the weak current cable connector 9 and is connected to the external power supply network equipment.

[0048] In one embodiment, a communication device 5 is also included. The communication device 5 is a device that can realize data transmission, such as a switch, a hub, etc. Since the communication device 5 does not need to be displayed or operated at a high frequency, the communication device 5 is located in the box 1 and is fixedly connected to the box 1. The communication cable of the communication device 5 passes through the weak current cable connector 9 and is connected to the external power supply network equipment.

[0049] In one of the embodiments, a control device 6 is further included. The control device 6 is located in the box 1 and is fixedly connected to the box 1. The control cable of the control device 6 passes through the weak-current cable connector 9 and is connected to an external power supply network device.

[0050] In other embodiments, when the AC distribution box is equipped with a power supply and a network supply device, the cables of multiple devices can also be connected to the power supply and the network supply device, and finally the cables of the power supply and the network supply device are passed through the box 1 and connected to the external power supply and network supply device.

[0051] Referring to FIG. 1 , in one embodiment, the box body 1 includes a side wall and a rear wall 104, and the side wall and the rear wall 104 are fixedly connected. When the box door 2 is in a closed state, the rear wall 104 is arranged opposite to the box door 2. The side wall is provided with a fan 7 and a vent 701, and the fan 7 is located in the box body 1 and is fixedly connected to the side wall. The fan 7 and the vent 701 can reduce the temperature in the AC distribution box to ensure the normal operation of the internal components. There is no requirement for the shape of the vent 701, and a regular hexagonal opening can be arranged in a staggered manner, and the heat dissipation area is maximized on the area of ​​the bottom wall 106 without reducing the strength of the bottom wall 106.

[0052] Preferably, in one embodiment, the side wall includes a top wall 105 and a bottom wall 106, the fan 7 is fixedly connected to the top wall 105, and a ventilation hole 701 is provided on the bottom wall 106. The top wall 105 and the bottom wall 106 are arranged relative to each other, and the ventilation hole 701 can play a role in heat dissipation when the fan 7 is not turned on. When the fan 7 starts to run, the ventilation hole 701 mainly plays a role in balancing the air pressure of the incoming air. The fan 7 drives the air circulation through the rotation of the blades. Since the ventilation hole 701 and the fan 7 are directly separated by a distance, the air flow in the box 1 will form an air duct, thereby effectively taking away the heat generated by the path components.

[0053] Referring to FIG. 1 , in one embodiment, the top wall 105 is provided with a filter port 702 , and the fan 7 is connected to the filter port 702 . The filter port 702 may be a small-hole mesh plate or a wire mesh, etc. The filter port 702 may prevent debris from entering the fan 7 and damaging the normal operation of the fan 7 .

[0054] Preferably, in one embodiment, the fan 7 is an axial flow fan 7, and a temperature sensor is provided inside the fan 7, which has signal feedback transmission and speed regulation functions. The signal feedback function can detect the state of the axial flow fan 7, and the speed regulation function senses the temperature inside the distribution box through the temperature sensor built into the axial flow fan 7. When the temperature exceeds the preset temperature, the axial flow fan 7 increases the speed of the fan 7 and increases the exhaust volume.

[0055] In one embodiment, a plurality of rivet nuts 107 are disposed on the box body 1 to fix the positions of the plurality of devices in the box body 1 .

[0056] The rivet nut 107 is only one of the ways to fix multiple components. The positions of the electrical components in the box 1 can also be determined by bolt fixing, movably placing components on a receiving plate, and other methods.

[0057] The technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0058] The above-described embodiments only express several implementation methods of the present application, and the descriptions thereof are relatively specific and detailed, but they cannot be construed as limiting the scope of the patent application. It should be pointed out that, for a person of ordinary skill in the art, several variations and improvements can be made without departing from the concept of the present application, and these all belong to the protection scope of the present application. Therefore, the protection scope of the patent application shall be subject to the attached claims.

Claims

1. An AC distribution box, characterized in that: include: A box body (1) and a box door (2) arranged on the box body (1), wherein the box door (2) is movable relative to the box body (1) so as to open or close the box body (1); A fixing plate (101) and a limiting plate (102) are provided inside the box body (1); one end of the fixing plate (101) facing the box door is fixedly connected to the limiting plate (102) at a preset angle; and one end of the fixing plate (101) facing away from the box door is fixedly connected to the inner wall of the box body, so that the inner wall of the box body fixedly connected to the fixing plate (101), the fixing plate (101) and the limiting plate (102) surround a wire outlet groove; The wire trough is used to arrange weak-current cables, and the space between the limit plate (102) and the box door is used to arrange strong-current cables; The box body (1) is provided with a strong current cable connector (8) for passing strong current cables through, and a weak current cable connector (9) for passing weak current cables through.

2. The AC distribution box according to claim 1, characterized in that: The wire trough is formed by enclosing two fixing plates (101), one limiting plate (102) and the box body (1); the two fixing plates (101) are arranged opposite to each other and one end in the same direction is fixedly connected to the box body (1); the limiting plate (102) is buckled on the other end in the same direction of the two fixing plates (101) to close the wire trough.

3. The AC distribution box according to claim 1, characterized in that: It also comprises a switch device (3), wherein the switch device (3) is located inside the box door (2) and is fixedly connected to the box door (2); The box door (2) is provided with a first window to expose the operating end of the switch device (3); the switch cable of the switch device (3) passes through the high-voltage cable connector (8).

4. The AC distribution box according to claim 1, characterized in that: It also comprises an interactive device (4), the interactive device (4) being located inside the box door (2) and fixedly connected to the box door (2), the box door (2) being provided with a second window so that an operating end of the interactive device (4) is exposed; The interactive cable of the interactive device (4) passes through the cable duct and then passes through the weak-current cable connector (9).

5. The AC distribution box according to claim 1, characterized in that: It also comprises a communication device (5), the communication device (5) being located in the box (1) and fixedly connected to the box (1), and the communication cable of the communication device (5) passing through the cable duct and then passing through the weak-current cable connector (9).

6. The AC distribution box according to claim 1, characterized in that: It also comprises a control device (6), the control device (6) being located in the box (1) and fixedly connected to the box (1), and a control cable of the control device (6) passing through the cable duct and then passing through the weak-current cable connector (9).

7. The AC distribution box according to claim 1, characterized in that: The box body (1) comprises a side wall and a rear wall (104), the side wall and the rear wall (104) are fixedly connected, and when the box door (2) is in a closed state, the rear wall (104) is arranged opposite to the box door (2); The side wall is provided with a fan (7) and a ventilation hole (701); the fan (7) is located inside the box body (1) and is fixedly connected to the side wall.

8. The AC distribution box according to claim 7, characterized in that: The side wall comprises a top wall (105) and a bottom wall (106); the fan (7) is fixedly connected to the top wall (105); and the ventilation hole (701) is provided on the bottom wall (106).

9. The AC distribution box according to claim 8, characterized in that: The top wall (105) is provided with a filter port (702), and the fan (7) is in communication with the filter port (702).

10. The AC distribution box according to claim 7, characterized in that: A temperature sensor is provided inside the fan (7), and the temperature sensor is used to detect the temperature inside the box (1) so as to control the rotation speed of the fan (7).

11. The AC distribution box according to claim 1, characterized in that: The box body (1) is provided with a plurality of rivet nuts (107) for fixing the positions of the plurality of devices in the box body (1).

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