CN211046090U - A distribution box with anti-leakage alarm - Google Patents

Abstract

The utility model provides a power distribution box with an anti-leakage alarm, comprising a box body and a wiring board; the utility model is characterized in that: the two sides of the box body are provided with ventilation openings; the inner surface of the box body is connected under the rear plate by screws There is a lower card slot; a JLT9U voltage sensor is connected to the inner surface of the box through screws; the upper part of the JLT9U voltage sensor is connected to a controller through an electrical connection line, and the controller is connected to the box through screws. On the inner surface; a buzzer is connected to the top of the controller through an electrical connection line, and the buzzer is located above the box body; A box door is connected through a hinge; from the above, it can be seen that compared with the existing leakage alarm distribution box, a terminal board which is insulated and fixed with the outer casing is added. Send out an alarm signal, which is convenient to notify relevant departments to maintain in time and reduce losses.

Description

A distribution box with anti-leakage alarm

technical field

The utility model belongs to the field of anti-leakage power distribution boxes, in particular to a power distribution box with anti-leakage alarms.

Background technique

The large-scale power system that appeared in the 20th century is one of the most important achievements in the history of human engineering science. It is a power production and consumption system composed of power generation, transmission, substation, distribution and consumption. Switchgear, measuring instruments, protective appliances and auxiliary equipment are required to be assembled in closed or semi-enclosed metal cabinets or on screens to form low-voltage power distribution devices.

During normal operation, the circuit can be turned on or off with the help of manual or automatic switches, and the circuit can be cut off or alarmed with the help of protective appliances during fault or abnormal operation. By means of measuring instruments, various parameters in operation can be displayed, and some electrical parameters can also be adjusted to prompt or send signals for deviations from the normal working state. The distribution box will cause leakage due to various reasons, and the current distribution box generally does not have the functions of anti-leakage and leakage alarm, and the overall component layout of the previous distribution box is unreasonable, and the protection equipment is not complete, which is easy to cause leakage. The situation occurs frequently, which seriously affects the user experience and the work process of the construction personnel. The safety is low, the function is poor, and the service life is short. The internal wiring of the distribution box is connected on the terminal block, and the terminal block is an insulator. It is inevitable that aging will occur in use, resulting in loose connections. Some wires are exposed and even touch the shell of the distribution box, which makes the shell live, and the safety factor is low during maintenance.

For example, the existing Chinese utility model patent with the patent number of CN201820634237.9 discloses a power distribution box with an anti-leakage alarm, which is basically described as follows: the device includes a box body, a current sensor, a controller, and a micro battery , alarm, the box body is provided with an exhaust window, the box body is provided with a fixed plate, one side of the fixed plate is provided with the alarm device, a wire interface is arranged under the box body, the The box body is provided with a box door, an explosion-proof glass is arranged on the box door, a glass bracket is arranged under the explosion-proof glass, a safety lock is arranged on the box door, and an inner sealing plate is arranged inside the box body, so A bottom plate is arranged below the inner sealing plate, the current sensor is arranged on the inner sealing plate, and the controller is arranged above the current sensor.

Based on the description of the above patent, it can be seen that when the distribution box in this patent is used, the current sensing device is insensitive in detection due to the unsmooth connection of the line. Even if there is leakage, the current cannot be guaranteed to be detected, and the detection result is inaccurate. .

Therefore, in view of this, the existing structure and defects are studied and improved, and a distribution box with an anti-leakage alarm is provided, in order to achieve a more practical purpose.

Utility model content

In order to solve the above-mentioned technical problems, the present utility model provides a distribution box with an anti-leakage alarm, so as to solve the problem of insensitive detection of the current sensing device due to the unsmooth connection of the circuit when the distribution box in this patent is used. The leakage situation does not guarantee the detection of the current, and the detection result is inaccurate.

The purpose and effect of a power distribution box with an anti-leakage alarm of the present utility model are achieved by the following specific technical means:

A power distribution box with anti-leakage alarm, comprising a box body and a wiring board; it is characterized in that: the two sides of the box body are provided with air vents; the inner surface of the box body is connected with a lower slot under the rear plate by screws ; A JLT9U voltage sensor is connected with a screw on the inner surface back of the box body; a controller is connected above the JLT9U voltage sensor through an electrical connection line, and the controller is connected on the inner surface of the box body by a screw; The top of the controller is connected with a buzzer through an electrical connection line, and the buzzer is located above the box body; the top of the box body is connected with a rain shield by welding, and the side of the box body is connected by hinges There is a box door; the lower part of the box body is provided with a wire outlet, and the two inner sides of the box body are connected with side clamping slots by screws; the surface of the wiring board is provided with a terminal block.

Further, the two interfaces of the JLT9U voltage sensor are respectively connected to the wiring board and the box.

Further, the side clamping slot is a clamping slot structure with an opening facing the inner side of the box body, and a threaded hole is opened on the front plate of the side clamping slot, and the side clamping slot is made of plastic with good insulation.

Further, the wiring board is a rectangular metal plate, and the connecting piece between the wiring board and the terminal block is an insulating part.

Further, the lower card slot is a plastic block that is bent upward, and the lower card slot has two parallel installations.

Compared with the prior art, the utility model has the following beneficial effects:

This design improves the structure on the basis of the existing distribution box with anti-leakage alarm. The method is to fix the insulating side card slot and the insulating lower card slot, so that the wiring board does not touch the inner wall of the distribution box, install the wiring terminal block on the wiring board, and fix and connect the wires on the wiring terminal block. In this way, even if the wiring is disconnected due to the aging of the terminal block, the box will not be electrified because the wiring board is not in contact with the box body. If the wall or ground is in contact, the JLT9U voltage sensor will measure the voltage between the terminal board and the distribution box shell and transmit the signal to the controller. The controller will control the buzzer to give an alarm, which is convenient for timely maintenance. It can be seen that compared with the existing leakage alarm distribution box, a terminal board which is insulated and fixed with the shell is added. If there is leakage, there will be a voltage difference, which will be detected by the voltage sensor, and an alarm signal will be issued in time, which is convenient to notify the relevant departments to repair in time and reduce losses. .

Description of drawings

Figure 1 is a schematic structural diagram of the present invention.

FIG. 2 is a schematic structural diagram of the controller of the present invention.

Figure 3 is a front view of the present invention.

4 is a left side view of the wiring board of the present invention.

In the figure, the corresponding relationship between component names and drawing numbers is:

1. Box body; 2. Box door; 3. Weather shield; 4. Wiring board; 5. Terminal block; 6. Controller; 7. JLT9U voltage sensor; 8. Buzzer; 9. Air vent; 10 , lower card slot; 11, outlet; 12, side card slot.

Detailed ways

The embodiments of the present utility model will be described in further detail below with reference to the accompanying drawings and examples. The following examples are used to illustrate the present invention, but cannot be used to limit the scope of the present invention.

In the description of the present utility model, unless otherwise specified, "multiple" means two or more; the terms "upper", "lower", "left", "right", "inner", "outer" ", "front end", "rear end", "head", "tail" and other indications of orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, only for the convenience of describing the present utility model and simplifying the description, Rather than indicating or implying that the indicated device or element must have a particular orientation, be constructed and operate in a particular orientation, it should not be construed as a limitation of the present invention. Furthermore, the terms "first," "second," "third," etc. are used for descriptive purposes only and should not be construed to indicate or imply relative importance.

In the description of the present invention, it should be noted that, unless otherwise expressly specified and limited, the terms "connected" and "connected" should be understood in a broad sense, for example, it may be a fixed connection or a detachable connection, or It can be connected integrally; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood in specific situations.

Example:

As shown in accompanying drawings 1 to 4:

The utility model provides a distribution box with an anti-leakage alarm, comprising a box body 1 and a wiring board 4; it is characterized in that: the two sides of the box body 1 are provided with ventilation openings 9; The bottom of the board is connected with the lower card slot 10 by screws; the inner surface of the box body 1 is connected with a JLT9U voltage sensor 7 by screws on the back plate; the upper part of the JLT9U voltage sensor 7 is connected with a controller 6 through an electrical connection line, And the controller 6 is connected to the inner surface of the box body 1 through screws; the top of the controller 6 is connected with a buzzer 8 through an electrical connection line, and the buzzer 8 is located above the box body 1; the box The upper part of the body 1 is connected with a rain shield 3 by welding, and the side of the box body 1 is connected with a box door 2 through hinges; the lower part of the box body 1 is provided with a wire outlet 11, and the two inner sides of the box body 1 pass through There are side clamping slots 12 connected with screws; the terminal block 5 is mounted on the surface of the wiring board 4 .

Among them, the two interfaces of the JLT9U voltage sensor 7 are respectively connected to the wiring board 4 and the box body 1. The JLT9U voltage sensor 7 of this structure is shown in Figure 2, and the input end and the output end of the JLT9U voltage sensor 7 are respectively connected to the wiring On board 4 and box 1, if the terminal block 5 on the wiring board 4 is aging, causing some live wires to contact the wiring board 4, there will be a voltage difference between the wiring board 4 and the grounded box 1, which is convenient for Detected by JLT9U voltage sensor 7.

Wherein, the side card slot 12 is a card slot structure with an opening facing the inner side of the box body 1, and a threaded hole is opened on the front plate of the side card slot 12, and the side card slot 12 is made of plastic with good insulation. The side card slot 12 of this structure is as shown in FIG.

Wherein, the wiring board 4 is a rectangular metal plate, and the connecting piece on the wiring board 4 and the terminal block 5 is an insulating part. The wiring board 4 of this structure is shown in FIG. The function of 5 is to fix the wire and connect the corresponding wire. When the terminal block 5 is aging or not fixed in place, the wire head is separated from the terminal block and clamped. If the wire head touches the terminal block 4, the terminal block 4 will be charged, which is convenient for JLT9U The voltage sensor 7 senses the voltage.

The lower card slot 10 is a plastic block that is bent upward, and the lower card slot 10 has two parallel installations. The lower card slot 10 of this structure is shown in FIG. 2 , and the lower card slot 10 is used for wiring. The weight of the board 4 and the lower card slot 10 are insulated to prevent the connection board 4 from contacting the box body 1 and causing the voltmeter to fail, or the box body 1 being charged, posing a safety hazard.

The specific usage mode and function of this embodiment:

In the utility model, the anti-leakage alarm distribution box is opened, the live wire is connected to the terminal block 5 according to the regulations, and the terminal board 4 is fixed between the side card slots 12 on both sides, and then placed on the lower card slot 10. , make the terminal board 4 fixed and insulated with the box 1, close the box door 2, and use it with electricity. In the event of a fault, if the head of the cable contacts the terminal board 4, a potential difference will be formed between the terminal board 4 and the box 1. , the voltage is sensed by the JLT9U voltage sensor 7, and the signal is transmitted to the controller 6. The controller 6 controls the buzzer 8 to issue an alarm, which should be repaired in time. In summary, it can be seen that compared with the existing leakage alarm power distribution The box is added with a terminal board 4 which is insulated and fixed with the shell. If there is a leakage, there will be a voltage difference, which will be detected by the voltage sensor, and an alarm signal will be issued in time to facilitate the notification of the relevant departments for timely maintenance and reduce losses.

The embodiments of the present invention are presented for purposes of illustration and description, and are not intended to be exhaustive or to limit the invention to the form disclosed. Many modifications and variations will be apparent to those of ordinary skill in the art. The embodiment was chosen and described in order to better explain the principles of the invention and the practical application, and to enable others of ordinary skill in the art to understand the invention for the design of various embodiments with various modifications as are suited to the particular use.

Claims (5)

1. The distribution box with the anti-creeping alarm function comprises a box body (1) and a wiring board (4), and is characterized in that ventilation openings (9) are formed in two side faces of the box body (1), a lower clamping groove (10) is connected to the lower portion of a rear inner surface plate of the box body (1) through screws, a J L T9U voltage sensor (7) is connected to an inner surface back plate of the box body (1) through screws, a controller (6) is connected to the upper portion of the J L T9U voltage sensor (7) through an electric connecting line, the controller (6) is connected to the inner surface of the box body (1) through screws, a buzzer (8) is connected to the upper portion of the controller (6) through the electric connecting line and located above the box body (1), a rain blocking plate (3) is connected to the upper portion of the box body (1) through welding, the side face of the box body (1) is connected with a box door (2) through screws, an outlet (11) is formed in the lower portion of the box body (1), two inner side faces of the box body (1) are connected with side clamping grooves (.

2. The distribution box with the anti-leakage alarm function as claimed in claim 1, wherein two interfaces of the J L T9U voltage sensor (7) are respectively connected to the wiring board (4) and the box body (1).

3. The anti-creeping alarm distribution box of claim 1, wherein: the side clamping groove (12) is of a clamping groove structure with an opening facing the inner side of the box body (1), a threaded hole is formed in a front clamping plate of the side clamping groove (12), and the side clamping groove (12) is made of plastic with good insulation performance.

4. The anti-creeping alarm distribution box of claim 1, wherein: the wiring board (4) is a rectangular metal plate, and a connecting piece between the wiring board (4) and the wiring terminal strip (5) is an insulating part.

5. The anti-creeping alarm distribution box of claim 1, wherein: the lower clamping groove (10) is a plastic block which is bent upwards, and two parts of the lower clamping groove (10) are arranged in parallel.

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