A distribution box with self-checking function

Abstract

A distribution box with a self-checking function includes a distribution box body, a text message sending component, a water accumulation detection mechanism, and also has a control mechanism, a control circuit, a light detection circuit, and a trigger circuit; the control mechanism includes a guide groove, a sealing plate, and an electric push rod, the lower end of the sealing plate is installed on the upper end of the push column of the electric push rod, the inner side of the guide groove is slidably sleeved on the side end of the sealing plate, the guide groove is installed on the inner side of the heat dissipation box of the shell of the distribution box body, and the cylinder of the electric push rod is installed on the lower end of the heat dissipation window; the water accumulation detection mechanism is installed on the inner end of the shell, and the text message sending component, the control circuit, the light detection circuit, and the trigger circuit are installed in the component box. When the shell is damaged due to various reasons, the new type can send a text message to remind the relevant management personnel to go to the site for timely maintenance, reducing the probability of damage to the electrical components in the distribution box body; when water enters the shell due to various reasons, it can send a text message to remind the management personnel who are not on site to go to the site for processing, ensuring safe power supply.

Description

Technical Field

[0001] The utility model relates to the technical field of distribution box equipment, in particular to a distribution box with a self-checking function. Background Art

[0002] The power distribution cabinet (box) is the final equipment of the power distribution system. The power distribution cabinet is used in places where the load is relatively dispersed and there are fewer circuits; it mainly distributes the power of a circuit of the upper-level power distribution equipment to the nearest load, and provides protection, monitoring and control for the load.

[0003] With the advancement of technology, the functions of distribution boxes are becoming more and more perfect. For example, my country's patent number "201620024277.2, patent name "New distribution cabinet" authorized patent, its content records "the safe distribution cabinet can make the conductive block on the cabinet door contact and disconnect with the switch, and the circuit is disconnected when the cabinet door is opened, the safety is well guaranteed, and it can automatically dissipate heat according to the temperature of the distribution cabinet body. The desiccant layer on the inside of the distribution cabinet can make the distribution cabinet body in a dry working environment, which not only improves the working efficiency of the distribution cabinet body, but also extends the service life of the distribution cabinet body". It can be seen from the above that although the comparative patent has achieved the technical effect of the invention described in it to a certain extent, it is limited by the structure and still has the following technical problems to be solved. First: When the distribution box is installed outdoors, it is affected by the use time and Due to its own quality and environmental factors (such as long-term corrosion caused by rain, etc.), there is a chance that its shell will be damaged. When external rainwater enters the shell, it will cause damage to internal electrical components or short circuits. Since the relevant management personnel cannot be notified in time when a problem occurs, it is impossible to effectively ensure safe power supply. Second: It does not have the function of detecting water accumulation inside the shell. In this way, when water enters the shell due to various reasons (such as the shell door is not closed properly, etc.), the staff who are not on site cannot understand the specific situation. When there is a lot of water accumulation, there is a chance of leakage and subsequent staff opening the box door will be electrocuted, which will have an adverse effect on safe power supply. In summary, it is particularly necessary to provide a distribution box that not only has the functions of an ordinary distribution box, but also has the function of actively monitoring whether the shell is damaged and water accumulation. Utility Model Content

[0004] In order to overcome the drawbacks of the existing distribution box as described in the background due to structural limitations, the utility model provides a distribution box based on the distribution box body, which not only has other functions of the distribution box, but also can, under the joint action of relevant mechanisms, detect whether the shell is damaged and there is water accumulation inside at regular intervals. When the shell is damaged and water accumulates inside, it can immediately prompt the management personnel who are not on site to go to the site for processing by SMS, thereby reducing the probability of damage to the distribution box body as much as possible and ensuring safe power supply as much as possible. A distribution box with a self-checking function.

[0005] The technical solution adopted by the utility model to solve its technical problems is:

[0006] A distribution box with a self-checking function comprises a distribution box body, a text message sending component, and a water accumulation detection mechanism, and is characterized in that it also comprises a control mechanism, a control circuit, a light detection circuit, and a trigger circuit; the control mechanism comprises a guide groove, a sealing plate, and an electric push rod, the lower end of the sealing plate is mounted on the upper end of the push column of the electric push rod, the inner side of the guide groove is slidably sleeved on the side end of the sealing plate, the guide groove is mounted on the inner side of the heat dissipation window of the shell of the distribution box body, and the cylinder of the electric push rod is mounted on the lower end of the heat dissipation window; the water accumulation detection mechanism is mounted on the lower end of the shell, and the text message sending component, the control circuit, the light detection circuit, and the trigger circuit are mounted in the component box; the signal output end of the water accumulation detection mechanism and the signal input end of the trigger circuit are connected via a wire; the two-way power output end of the control circuit and the power input end of the electric push rod of the control mechanism are electrically connected, and the power input end of the light detection circuit and the signal output end of the control circuit are electrically connected; the signal input end of the text message sending component is electrically connected to the signal output ends of the trigger circuit and the light detection circuit.

[0007] Preferably, the outer diameter of the sealing plate is larger than the outer diameter of the heat dissipation window of the shell.

[0008] Preferably, the control circuit includes an electrically connected time-controlled switch and a relay, the positive power input terminal of the time-controlled switch is connected to the positive control power input terminal of the relay, the negative power input terminal of the time-controlled switch is connected to the negative control power input terminal of the relay, and the power output terminal of the time-controlled switch is connected to both ends of the power input of the relay.

[0009] Preferably, the light detection circuit includes an electrically connected resistor, a phototransistor, a transistor, and a diode, one end of the first resistor is connected to the collector of the phototransistor, the emitter of the phototransistor is connected to one end of the second resistor, the other end of the second resistor is connected to the base of the transistor, and the collector of the transistor is connected to the cathode of the diode.

[0010] Preferably, the trigger circuit comprises an electrically connected resistor, a transistor and a diode, the cathode of the diode is connected to the collector of the transistor, and the base of the transistor is connected to one end of the resistor.

[0011] Compared with the prior art, the present invention has the following beneficial effects: (1) based on the distribution box body, the present invention has other functions of an ordinary distribution box. The control circuit can open or close the heat dissipation window of the shell through the sealing plate of the control mechanism at regular intervals. When the heat dissipation window is closed and no external light enters the shell, it can detect whether there is damage. When the shell is damaged due to various reasons, it can send a text message to remind the relevant management personnel to go to the site for timely maintenance, thereby reducing the probability of damage to the electrical components in the distribution box body; (2) under the joint action of the water accumulation detection mechanism and the trigger circuit, when water enters the shell due to various reasons, the management personnel who are not on site can be reminded by text message to go to the site for processing at the first time, thereby ensuring safe power supply as much as possible. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0013] Figure 1 It is a schematic diagram of the overall structure and the partially enlarged structure of the utility model.

[0014] Figure 2 This is a circuit diagram of the utility model. DETAILED DESCRIPTION

[0015] Figure 1 , 2 As shown in, a distribution box with a self-checking function includes a distribution box body 1, a power module E1, a text message sending component E4, and a water accumulation detection mechanism E3. The distribution box body has a heat dissipation window 101 in the upper middle of the left and right sides of the shell, and also has a control mechanism 2, a control circuit 3, a light detection circuit 4, and a trigger circuit 5; the control mechanism 2 has at least two sets, each set of the control mechanism includes two guide grooves 21, a sealing plate 22, and an electric push rod M. The middle part of the lower end of the sealing plate 22 is welded to the upper end of the push column of the electric push rod M, and the two "[" of the two sets of control mechanisms The inner sides of the guide grooves 21 are slidably sleeved on the left and right side ends of the sealing plate 22, and the two guide grooves 21 of the two sets of control mechanisms are respectively welded to the front and rear parts of the inner sides of the left and right end heat dissipation windows 101 of the shell, and the cylinders of the electric push rods M of the two sets of control mechanisms are respectively vertically distributed and welded to the middle parts of the lower ends of the two heat dissipation windows 101; the water accumulation detection mechanism E3 is installed at the lower rear end of the shell, the power module E1, the SMS sending component E4, the control circuit 5, the light detection circuit 4, and the trigger circuit 5 are installed on the circuit board in the component box 6, and the component box 6 is installed in the middle part of the upper end of the shell.

[0016] Figure 1 , 2As shown in , the outer diameter of the sealing plate 22 is larger than the outer diameter of the heat dissipation window 101 of the housing, and the outer end of the sealing plate 22 and the inner side of the heat dissipation window 101 are in a close contact sliding structure. When the push column of the electric push rod M is at the upper dead point, the sealing plate 22 completely seals the inner side of the heat dissipation window 101. When the push column of the electric push rod M is at the lower dead point, the inner side of the heat dissipation window 101 is not sealed by the sealing plate 22. The control circuit includes 3 time-controlled switches E2 and relays K1 connected by circuit board wiring. The positive power input terminal 1 of the time-controlled switch E2 is connected to the positive control power input terminal of the relay K1, the negative power input terminal 2 of the time-controlled switch E2 is connected to the negative control power input terminal of the relay K1, and the power output terminals 3 and 4 of the time-controlled switch E2 are respectively connected to the two ends of the power input of the relay K1. The light detection circuit includes resistors R1 and R2, phototransistor Q1, transistor Q2, and diode VD1 connected via circuit board wiring. One end of the first resistor R1 is connected to the collector of phototransistor Q1, the emitter of phototransistor Q1 is connected to one end of the second resistor R2, the other end of the second resistor R2 is connected to the base of transistor Q2, and the collector of transistor Q2 is connected to the cathode of diode VD1 (the light receiving surface of phototransistor Q1 is located outside the opening in the middle of the front end of the component box). The trigger circuit includes resistor R3, transistor Q3, and diode VD2 connected via circuit board wiring. The cathode of diode VD2 is connected to the collector of transistor Q3, and transistor Q3 is connected to one end of resistor R3. The power input terminals 1 and 2 of the power module E1 are connected to the two poles of the AC 220V power supply through wires, respectively; the power output terminals 3 and 4 of the power module E1 are connected to the power input terminal of the short message sending component E4, the power input terminal of the control circuit, the power input terminal 1 and 2 of the time-controlled switch E2, and the power input terminal 1 and 2 of the water accumulation detection mechanism E3 through wires, respectively; the signal output terminal 3 of the water accumulation detection mechanism E3 is connected to the other end of the signal input terminal resistor R3 of the trigger circuit through a wire; the two normally open and two normally closed contact terminals of the two-way power output terminal relay K1 of the control circuit and the positive and negative and negative and positive power input terminals of the electric push rods M of the two sets of control mechanisms are connected through wires, respectively; the other end of the power input terminal resistor R1 of the light detection circuit and the emitter of the transistor Q2 are connected to the two normally open contact terminals of the signal output terminal relay K1 of the control circuit through wires; the signal input terminal 3 of the short message sending component E4 is connected to the positive electrode of the signal output terminal diode VD2 of the trigger circuit and the positive electrode of the signal output terminal diode VD1 of the light detection circuit through a wire.

[0017] Figure 1 , 2As shown, the new type is based on the distribution box body 1, has the functions of the ordinary distribution box body 1, and is installed with a variety of electrical control components, etc. As the final equipment of the distribution system, it is used in occasions where the load is relatively dispersed and there are fewer circuits. Its main function is to distribute the power of a circuit of the upper-level distribution equipment to the nearest load, and provide protection, monitoring and control for the load (the above is an existing mature technology, and this application will not repeat it). After the 220V power supply enters the power input terminal of the power module E1, the 3rd and 4th pins of the power module E1 output a stable DC 12V power supply and enter the power input terminal of the SMS sending component E4, the control circuit, and the water accumulation detection mechanism E3. After the water accumulation detection mechanism E3 is energized and works, if there is no water in the shell of the distribution box body 1, the detection head of the water accumulation detection mechanism E3 does not detect water and its signal output end does not output a power signal. In this way, the SMS sending component E4 will not send a SMS. In actual circumstances, if there is water in the shell of the distribution box body 1, the detection head of the water accumulation detection mechanism E3 detects water and its signal output end outputs a power signal which enters the base of the transistor Q3 through the resistor R3 for voltage reduction and current limiting. The transistor Q3 is turned on and the collector outputs a low level which is unidirectionally conducted through the diode VD2 and enters the signal input terminal 3 pin of the SMS module E4. In this way, the SMS sending component E4 will send a SMS. In the control circuit and control mechanism, after the time switch E2 is energized, its 3rd and 4th pins will output 20 seconds of power every 47 hours, 59 minutes and 40 seconds in each cycle (the time is adjustable, the output power time is around 2 pm, etc.) to the power input ends of the relay K1. The relay K1 will be energized for 20 seconds every nearly two days. The relay K1 is energized for 20 seconds every two days to close the control power input end and the normally open contact end, and the control power input end and the normally closed contact end are open. In this way, the positive and negative power input ends of the electric push rod M and the light detection circuit are energized to work. After the positive and negative power input ends of the electric push rod M are energized, its push column drives the sealing plate to move up to the stop point along the guide groove 21. The sealing plate 21 completely closes the inner end of the heat dissipation window, and the external light no longer enters the shell, so as to prepare for the light detection circuit to detect whether the shell is damaged (at the same time as the push column of the electric push rod moves up to the stop point, the sealing plate just moves up to the stop point along the guide groove).After the light detection circuit is powered on, when the shell of the distribution box body 1 is not damaged, external light cannot enter the shell, and the light receiving surface of the phototransistor Q1 receives low light and has a large internal resistance. In this way, after the 12V power supply enters the phototransistor Q1 through the resistor R1 with voltage reduction and current limiting, the high level output by the emitter of the phototransistor Q1 enters the base of the transistor Q2 with voltage reduction and current limiting, which is lower than 0.7V, and the transistor Q2 will not be turned on. In this way, the short message sending component E4 will not send a short message. In actual situations, if the shell of the distribution box body 1 is When damage occurs, external light will enter the shell, the brightness inside the shell becomes larger, the light receiving surface of the phototransistor Q1 receives strong light and has small internal resistance, so that after the 12V power supply enters the phototransistor Q1 through the resistor R1 for voltage reduction and current limiting, the high level output by the emitter of the phototransistor Q1 enters the base of the transistor Q2 through the resistor R2 for voltage reduction and current limiting, which is higher than 0.7V, and the transistor Q2 will turn on the collector to output a low level, which will be unidirectionally conducted through the diode VD1 and enter the signal input terminal 3 of the SMS module E4, so that the SMS sending component E4 will send a SMS. After the time-controlled switch E2 is energized and its 3rd and 4th pins stop outputting power, the relay K1 loses power and is no longer attracted, and its control power input terminal and the normally open contact terminal are open, and the control power input terminal and the normally closed contact terminal are closed. In this way, the negative and positive power input terminals of the electric push rod M are energized to work. After the negative and positive power input terminals of the electric push rod M are energized, its push column drives the sealing plate to move down along the guide groove 21 to the stop point. The sealing plate 21 does not close the inner side end of the heat dissipation window, and the external air can enter the shell (the heat in the shell will be dissipated through the heat dissipation window), ensuring the heat dissipation needs of the electrical components in the shell (at the same time when the push column of the electric push rod moves down to the stop point, the sealing plate just moves down along the guide groove to the stop point).

[0018] Figure 1 , 2 As shown above, through the above, the new control circuit can open or close the heat dissipation window of the shell through the sealing plate of the control mechanism at regular intervals. When the heat dissipation window is closed and no external light enters the shell, it can detect whether the shell is damaged. When the shell is damaged due to various reasons, it can send a text message to remind the relevant management personnel. After the relevant management personnel’s mobile phone receives the text message, they can go to the site in time for timely maintenance, reducing the probability of damage to the electrical components in the distribution box body. Under the joint action of the water accumulation detection mechanism and the trigger circuit, when water enters the shell due to various reasons, it can also immediately remind the management personnel who are not on site by text message. After the relevant management personnel’s mobile phone receives the text message, they can go to the site in time for processing, ensuring safe power supply as much as possible. Figure 2(All the following components are mature industrial products), the resistance values ​​of resistors R1, R2 and R3 are 100Ω, 4.7K and 10K respectively; the models of NPN transistors Q2 and Q3 are 9013; the phototransistor Q1 is a 3DU silicon phototransistor; the models of diodes VD1 and VD2 are 1N4007 (unidirectional conduction); the power module is a 220V AC to 12V DC switching power module of the Mean Well brand (with two power input terminals and two power output terminals); the model of relay K1 is DC12V; the electric push rod M is a 20W reciprocating electric telescopic rod finished product, and there are limit switches at the upper and lower ends of the cylinder. When the push column moves up or down to the stop point, the motor of the electric push rod will lose power and will not work. Only the reverse input power will be powered on; the time control switch E2 is a time control switch finished product of model KG316t, which has two power input terminals, two power output terminals, and seven setting buttons. By operating the seven setting buttons separately The button can set the interval time of power output from the two power output terminals and the time of each power output; the SMS module E4 is a SMS alarm module of model GSM800. The finished SMS alarm module has two power input terminals 1 and 2, and signal input ports 3-8. After a low-level signal is input to each signal input port, the finished SMS alarm module will send a text message via the wireless mobile network. The SMS alarm module stores text messages. In this embodiment, a "shell damage water" text message is stored. After a low-level signal is input to pin 3 of the signal input port of the SMS alarm module, the SMS alarm module can send a text message; the water accumulation detection mechanism E3 is a water immersion sensor finished product of model TR-Y12V, which has two power input terminals, a normally open signal and a normally closed signal output terminal (the normally closed signal output terminal is not used in this embodiment), and two metal detection pieces are arranged at a distance from each other outside the lower end of the shell. After the two detection pieces detect water at the same time, the normally open signal output terminal will output power.

[0019] The above shows and describes the basic principles, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only for explaining the principles of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents.

Claims

1. A distribution box with a self-checking function, comprising a distribution box body, a short message sending component, and a water accumulation detection mechanism, characterized in that: It also has a control mechanism, a control circuit, a light detection circuit, and a trigger circuit; the control mechanism includes a guide groove, a sealing plate, and an electric push rod, the lower end of the sealing plate is installed on the upper end of the push column of the electric push rod, the inner side of the guide groove is slidably sleeved on the side end of the sealing plate, the guide groove is installed on the inner side of the heat dissipation window of the shell of the distribution box body, and the cylinder of the electric push rod is installed at the lower end of the heat dissipation window; the water accumulation detection mechanism is installed at the lower end of the shell, and the SMS sending component, the control circuit, the light detection circuit, and the trigger circuit are installed in the component box; the signal output end of the water accumulation detection mechanism and the signal input end of the trigger circuit are connected via a wire; the two-way power output end of the control circuit and the power input end of the electric push rod of the control mechanism are electrically connected, and the power input end of the light detection circuit and the signal output end of the control circuit are electrically connected; the signal input end of the SMS sending component is electrically connected to the signal output end of the trigger circuit and the light detection circuit.

2. A distribution box with self-checking function according to claim 1, characterized in that: The outer diameter of the sealing plate is greater than the outer diameter of the heat dissipation window of the shell.

3. A distribution box with self-checking function according to claim 1, characterized in that: The control circuit includes an electrically connected time-controlled switch and a relay, wherein the positive power input terminal of the time-controlled switch is connected to the positive control power input terminal of the relay, the negative power input terminal of the time-controlled switch is connected to the negative control power input terminal of the relay, and the power output terminal of the time-controlled switch is connected to both ends of the power input of the relay.

4. A distribution box with self-checking function according to claim 1, characterized in that: The light detection circuit includes an electrically connected resistor, a phototransistor, a transistor, and a diode. One end of the first resistor is connected to the collector of the phototransistor, the emitter of the phototransistor is connected to one end of the second resistor, the other end of the second resistor is connected to the base of the transistor, and the collector of the transistor is connected to the cathode of the diode.

5. A distribution box with self-checking function according to claim 1, characterized in that: The trigger circuit comprises an electrically connected resistor, a triode and a diode, wherein the cathode of the diode is connected to the collector of the triode, and the base of the triode is connected to one end of the resistor.

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