CN220822402U - Drawer for drawer type switch cabinet - Google Patents

Abstract

A drawer for a drawer type switch cabinet comprises a power module, a storage battery, a switch cabinet drawer body, a motor speed reducing mechanism, a reed switch, a magnet, a smoke detection circuit and a temperature detection circuit; the lower outer end of the drawer frame of the drawer body is provided with a supporting plate, the motor speed reducing mechanism is arranged on the supporting plate, and the power output shaft of the motor speed reducing mechanism is provided with a driving wheel; the reed switch is arranged at one end of the rear side of the drawer body, and the magnet is arranged at one end of the rear side of the drawer frame of the drawer body; the power module, the storage battery, the smoke detection circuit and the temperature detection circuit are arranged in the drawer body and are electrically connected. This novel staff need not manual push-and-pull drawer body, just can open or close the drawer body voluntarily, can also monitor whether to have taken place conflagration or overtemperature in the drawer body in real time, and the staff just can grasp specific condition directly perceivedly under the prerequisite of not opening the drawer body, has brought the facility for the staff, and can reach safer for load power supply effect correspondingly.

Description

Drawer for drawer type switch cabinet

Technical Field

The utility model relates to the technical field of switch cabinet equipment, in particular to a drawer for a drawer type switch cabinet.

Background

Drawer type switch board (cubical switchboard) is one kind and uses comparatively common electrical control equipment, mainly plays the purpose of controlling the consumer work. Under the actual condition, the switch cabinet can output a control signal instruction to the electric equipment besides directly controlling the input working power supply of the electric equipment, so that the electric equipment is in different working conditions under the control signal instruction. The prior drawer type switch cabinet generally comprises a cabinet body and a plurality of control drawers, each control drawer is respectively provided with a main power input end contact and a plurality of output plugs, a plurality of signal input and output contacts, a power input and output contact and a signal input and output contact are arranged at the rear part of a drawer frame at the rear side end of the drawer), when the drawer is pulled out forwards or pushed backwards, the open circuit of a power supply and a load or the control of the power input to the load or the separation of an input signal and an output signal and the closing of the input signal and the output signal are realized (when the drawer is closed, the power input contact at the rear side end of the drawer frame is conducted with the power input contact of the drawer, the power output contact at the rear side end of the drawer frame is conducted with the signal input contact of the drawer, and the signal output contact at the rear side end of the drawer is closed with the signal input plug at the rear side end of the drawer frame).

Although the existing switch cabinet drawer realizes the corresponding control function, the drawer has the defect of single function like the drawers of all switch cabinets in the field due to the limitation of the structure, and the drawer is particularly embodied as follows. The method comprises the following steps: when the drawer is opened or closed, the drawer is manually opened or closed by a worker, the mode or the mode can bring inconvenience to the worker, and when the worker pushes the drawer, if the drawer is not pushed in place, the signal input and output contacts and the power input and output contacts can not be plugged in place, so that the normal work of the load can be adversely affected. And two,: the performance of electrical components (signal input, output, power input, output components and the like) in the drawer cannot be monitored, so that when the temperature is too high or an electrical fire disaster occurs due to the quality problem of the electrical components or the overlarge load, the electrical components cannot be disposed of at the first time, and the probability of fault expansion exists. In summary, it is particularly necessary to provide a drawer of a switch cabinet which can bring convenience to the operation of workers and can monitor whether the temperature is too high or not and whether fire occurs or not in real time.

Disclosure of utility model

In order to overcome the defects of the prior switch cabinet drawer as described in the background due to the limitation of the structure, the utility model provides the drawer used for the drawer type switch cabinet, which is based on the drawer body of the switch cabinet, and under the combined action of related mechanisms, workers do not need to manually push and pull the drawer body, after a power switch is simply operated, a motor speed reducing mechanism can automatically open or close the drawer body, can ensure that the drawer body can be closed in place, can monitor whether fire or overtemperature occurs in the drawer body in real time, thereby bringing convenience to the workers, and can achieve the effect of safely supplying power for loads correspondingly.

The technical scheme adopted for solving the technical problems is as follows:

A drawer for a drawer type switch cabinet comprises a power module, a storage battery, a switch cabinet drawer body, a motor speed reducing mechanism, a reed switch and a magnet, and is characterized by also comprising a smoke detection circuit and a temperature detection circuit; the lower outer end of the drawer frame of the drawer body is provided with a supporting plate, the motor speed reducing mechanism is arranged on the supporting plate, and the power output shaft of the motor speed reducing mechanism is provided with a driving wheel; the reed switch is arranged at one end of the rear side of the drawer body, and the magnet is arranged at the front end of the rear side of the drawer frame of the drawer body; the power module, the storage battery, the smoke detection circuit and the temperature detection circuit are arranged in the drawer body; the power output end of the power module is electrically connected with the two poles of the storage battery, the smoke detection circuit and the power input end of the temperature detection circuit.

Preferably, the driving wheel is flexible and the outer end surface has friction straight teeth, and the upper end of the driving wheel is in close contact with the lower end of the drawer body.

Preferably, the reed switch is a normally closed contact reed switch, the magnet is positioned at the rear side end of the reed switch after the drawer body is closed to a dead point, and magnetic acting force acts on the reed switch, so that the internal contact of the reed switch is opened.

Preferably, the smoke detection circuit comprises a smoke detection sensor, a resistor and a light emitting diode which are electrically connected, wherein the power output end of the smoke detection sensor is connected with one end of the resistor, the other end of the resistor is connected with the anode of the light emitting diode, and the cathode of the light emitting diode is connected with the negative power input end of the smoke detection sensor.

Preferably, the temperature detection circuit comprises a temperature sensor, a resistor and a light emitting diode which are electrically connected, wherein one end of the temperature sensor is connected with one end of the resistor, and the other end of the resistor is connected with the anode of the light emitting diode.

Preferably, the reed switch terminal is connected in series between one of the power input terminals of the motor reduction mechanism.

Compared with the prior art, the utility model has the beneficial effects that: the utility model discloses based on cubical switchboard drawer body, under the combined action of relevant mechanism, the staff need not manual push-and-pull drawer body, after the simple operation switch, just can be through motor reduction gears automatic open or close the drawer body, and can guarantee under tongue tube and magnet effect that the drawer body is closed in place and automatic stop, whether can also have had conflagration or overtemperature in the drawer body through smoke detection circuit, temperature detection circuit real-time monitoring drawer body, the staff just can grasp the specific condition directly perceivedly under the prerequisite of not opening the drawer body, thereby brought convenience for the staff, and corresponding can reach safer power supply effect for the load.

Drawings

The utility model will be further described with reference to the drawings and examples.

Fig. 1 is a schematic view of the installation structure between the present utility model and a switch cabinet.

Fig. 2 is a schematic view of the bottom plan structure of the present utility model.

Fig. 3 is a circuit diagram of the present utility model.

Detailed Description

The drawer for the drawer type switch cabinet is shown in fig. 1, 2 and 3, and comprises a power module D1, a power switch S1, a storage battery G1 (12V/5 Ah), a switch cabinet drawer body 1, a motor speed reducing mechanism DJ, a reed switch GH, a magnet CT, a smoke detection circuit 2 and a temperature detection circuit 3; a supporting plate 102 is transversely welded in the middle of the lower outer end of the drawer frame 101 of the drawer body, a motor speed reducing mechanism DJ is transversely arranged on the middle of the supporting plate 102 through bolts, and a driving wheel 4 is tightly sleeved on the outer side of a power output shaft of the motor speed reducing mechanism DL; the lower end of the rear right outer side of the drawer body is provided with a front concave mounting groove, the reed switch GH is transversely adhered in the mounting groove by glue, the lower end of the rear right side of the drawer frame of the drawer body is provided with a rear concave fixing groove, and the rectangular CT permanent magnet is adhered in the fixing groove by glue; the power module D1, the power switch S1, the storage battery G1, the smoke detection circuit 2 and the temperature detection circuit 3 are arranged in the element box 5, and the element box 5 is arranged in the drawer body 1. 6 is a drawer type switch cabinet.

As shown in fig. 1 and 2, the driving wheel 4 is made of rubber material and the outer end surface of the ring driving wheel has friction straight teeth 41 (increasing friction with the lower outer end of the drawer body), and the upper end of the driving wheel 4 is in close contact with the middle of the lower end of the drawer body. The front side end of the magnet CT and the front end of the fixed slot are positioned on a vertical plane, the movable contact of the reed switch GH is horizontally positioned at the rear side end, the rear end of the reed switch GH is slightly more than the rear end of the mounting slot by 1 millimeter, and the lead connected with the reed switch GH is prevented from being collided by the magnet (and is led into the drawer body 1 through the middle opening of the mounting slot). The reed switch GH is a normally closed contact reed switch with a glass shell, and after the drawer body 1 is closed backwards, the magnet CT is positioned at the rear side end of the reed switch GH, and magnetic acting force acts on the reed switch GH, so that the contacts in the reed switch GH are opened. The smoke detection circuit comprises a smoke detection sensor D2, a resistor R1 and a light emitting diode VL1 which are connected through circuit board wiring, wherein the detection surface of the smoke detection sensor D2 is positioned outside a first opening at the rear side end of the element box 4, the light emitting surface of the light emitting diode VL1 is independently positioned outside a first opening at the front end of the drawer body 1, the 3 pin of the power output end of the smoke detection sensor D2 is connected with one end of the resistor R1, the other end of the resistor R1 is connected with the positive electrode of the light emitting diode VL1, and the negative electrode of the light emitting diode VL1 is connected with the 2 pin of the negative power input end of the smoke detection sensor D2. The temperature detection circuit comprises a temperature sensor W, a resistor R2 and a light emitting diode VL2 which are connected through circuit board wiring, wherein the detection surface of the temperature sensor W is positioned outside a second opening at the rear side end of the element box 4, the light emitting surface of the light emitting diode VL2 is independently positioned outside a second opening at the front end of the drawer body 1, one end of the temperature sensor W is connected with one end of the resistor R2, and the other end of the resistor R2 is connected with the anode of the light emitting diode VL 2. The two wiring ends of the reed switch GH are respectively connected with the pin 4 of one power output end of the power switch S1 and the positive power input end of the motor speed reducing mechanism DL. The power input ends 1 and 2 pins of the power module D1 and two general power input contacts (220V) of the drawer body are respectively connected by wires, the power output ends 3 and 4 pins of the power module D1 and two poles of the storage battery G1, the power input ends 1 and 2 pins of the smoke sensor D2 of the smoke detection circuit, the other end of the temperature switch W of the power input end of the temperature detection circuit and the cathode of the light-emitting diode VL2, the power input ends 1 and 2 pins of the power switch S1 are respectively connected by wires, and the power output ends 3, 4 pins, 5 and 6 pins of the power switch S1 (the handle is positioned outside a third opening of the front side end of the drawer body) and the positive and negative positive connection power input ends of the motor reducing mechanism DJ are connected by wires

In fig. 1 and 2, after two poles of an alternating current 220V power supply enter the power input end of the power module D1, the 3-pin and 4-pin output stable direct current 12V power supplies of the power module D1 enter the power input end of the storage battery G1, the smoke detection circuit, the temperature detection circuit and the power switch S1 (the 12V direct current power supply is used for floating charging of the storage battery G1 at ordinary times, and the circuit can work normally after the power input end of the power module D1 is turned on by the drawer cabinet body). When a worker needs to open or close the drawer body 1, the handle of the power switch S1 is shifted leftwards or rightwards, so that the 1, 2 feet, 3, 4 feet or 5 and 6 feet of the power switch S1 are respectively communicated, the positive and negative or negative positive electrode power input ends of the motor accelerating mechanism DJ are powered on, and when the negative and positive electrode power input ends of the motor decelerating mechanism DJ are powered on, the power output shaft drives the driving wheel 4 to rotate anticlockwise, and therefore the driving wheel 4 drives the drawer body 1 to move along the front outer side end of the drawer frame, the drawer body 1 is opened, and the power switch S1 is closed after the drawer body is opened to a certain degree. When the power input ends of the positive and negative poles of the motor reducing mechanism DJ are powered on, the power output shaft drives the driving wheel 3 to rotate clockwise, so that the driving wheel 3 drives the drawer body 1 to move towards the inner side end of the rear side of the drawer frame, the drawer body 1 is gradually closed (after the power switch is shifted leftwards, a worker does not need to wait until the drawer body is completely closed and then the power switch is closed, thereby bringing convenience to the worker), the reed switch GH at the rear side end of the drawer body after the drawer body is completely closed is close to the magnet CT, then the magnetic acting force of the magnet CT acts on the reed switch GH, the movable contact and the fixed contact in the reed switch GH are opened, and because the two wiring ends of the reed switch GH are respectively connected between the 4 pins of one power output end of the power switch S1 and the positive power input end of the motor reducing mechanism DL, the motor reducing mechanism DJ can lose electricity and does not drive the drawer body 1 to move backwards, and the automatic control purpose is realized.

In the smoke detection circuit shown in fig. 1 and 2, when no fire occurs in the drawer cabinet body 1, the light emitting diode VL1 does not emit light because no smoke is generated and the 3 pin of the smoke detection sensor D2 does not output a high level, which means that no fire occurs in the drawer cabinet body 1. When a fire disaster occurs in the drawer cabinet body 1, as the smoke is generated, the 3-pin output high level of the smoke detection sensor D2 is subjected to current-limiting and voltage-reducing through the resistor R1 and enters the positive electrode of the light-emitting diode VL1, the light-emitting diode VL1 is electrified to emit light, the fact that the fire disaster occurs in the drawer cabinet body 1 is represented, and the follow-up staff can intuitively observe the fire disaster occurring in the drawer cabinet body 1 on the premise that the drawer cabinet body 1 is not opened by the light-emitting diode VL 1. And when the temperature in the drawer cabinet body 1 is proper (for example, lower than 50 ℃), the internal contact of the temperature sensor W cannot be closed, and then the light emitting diode VL2 cannot emit electricity, which represents that the temperature in the drawer cabinet body 1 does not exceed the threshold value. When the temperature in the drawer cabinet body 1 is too high (for example, higher than 50 ℃), two contacts in the temperature sensor W are closed, a 12V power supply is subjected to current limiting and voltage reduction through the resistor R2 and enters the positive electrode of the light emitting diode VL2, then the light emitting diode VL2 is electrified to emit light, the fact that the temperature in the drawer cabinet body 1 is too high is represented, and on the premise that a subsequent worker does not open the drawer cabinet body 1, the light emitting through the light emitting diode VL2 can be visualized until the temperature in the drawer cabinet body 1 is ultrahigh. Through the above, this novel staff does not need manual push-and-pull drawer body, just can open or close the drawer body through motor reduction gears is automatic after the simple operation switch, and can guarantee that the drawer body closes in place and automatic stop, can also real-time supervision drawer body whether have had conflagration or overtemperature, and the staff just can grasp the concrete condition directly perceivedly under the prerequisite of not opening the drawer body, has brought the facility for the staff from this, and can reach safer power supply effect for the load correspondingly. In fig. 2, the resistances of the resistors R1 and R2 are 1.8K; the light emitting diodes VL1, VL2 are red light emitting diodes; the reed switch GH is a normally closed contact reed switch of the glass shell; the motor reducing mechanism DJ is a coaxial motor gear reducer with working voltage of 12V and power of 80W; the power supply module D1 is a switching power supply module for converting alternating current 220V into direct current 12V; the temperature sensor W is a normally closed contact kick type temperature control switch with the model KSD301 and the temperature of 50 ℃; the smoke detection sensor D2 is a finished smoke sensor module of the model MQ-2, and is provided with two power input ends and a signal output end, wherein the signal output end outputs a high level when smoke is detected, and otherwise, the signal output end does not output the high level.

In the description of the present utility model, unless explicitly stated and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; the two components can be connected mechanically and electrically, can be directly connected, can be indirectly connected through an intermediate medium, and can be communicated with each other inside the two components. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.

It will be evident to those skilled in the art that the utility model is not limited to the details of the foregoing illustrative embodiments, and that the present utility model may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are, therefore, to be considered in all respects as illustrative and not restrictive, the scope of the utility model being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Furthermore, it should be understood that although the present disclosure describes embodiments, not every embodiment is provided with a separate embodiment, and that this description is provided for clarity only, and that the disclosure is not limited to the embodiments described in detail below, and that the embodiments described in the examples may be combined as appropriate to form other embodiments that will be apparent to those skilled in the art.

Claims (6)

1. A drawer for a drawer type switch cabinet comprises a power module, a storage battery, a switch cabinet drawer body, a motor speed reducing mechanism, a reed switch and a magnet, and is characterized by also comprising a smoke detection circuit and a temperature detection circuit; the lower outer end of the drawer frame of the drawer body is provided with a supporting plate, the motor speed reducing mechanism is arranged on the supporting plate, and the power output shaft of the motor speed reducing mechanism is provided with a driving wheel; the reed switch is arranged at one end of the rear side of the drawer body, and the magnet is arranged at the front end of the rear side of the drawer frame of the drawer body; the power module, the storage battery, the smoke detection circuit and the temperature detection circuit are arranged in the drawer body; the power output end of the power module is electrically connected with the two poles of the storage battery, the smoke detection circuit and the power input end of the temperature detection circuit.

2. A drawer for a drawer-type switchgear as claimed in claim 1, wherein the drive wheel is of flexible material and the outer end surface has friction spur teeth, the upper end of the drive wheel being in close contact with the lower end of the drawer body.

3. The drawer for a drawer-type switch cabinet according to claim 1, wherein the reed switch is a normally closed contact reed switch, the magnet is located at the rear end of the reed switch after the drawer body is closed to a dead point, and a magnetic force acts on the reed switch, and the contacts inside the reed switch are opened.

4. The drawer for a drawer-type switch cabinet according to claim 1, wherein the smoke detection circuit comprises a smoke detection sensor, a resistor and a light emitting diode which are electrically connected, wherein the power output end of the smoke detection sensor is connected with one end of the resistor, the other end of the resistor is connected with the anode of the light emitting diode, and the cathode of the light emitting diode is connected with the power input end of the cathode of the smoke detection sensor.

5. The drawer for a drawer-type switch cabinet of claim 1, wherein the temperature detection circuit comprises a temperature sensor, a resistor and a light emitting diode which are electrically connected, wherein one end of the temperature sensor is connected with one end of the resistor, and the other end of the resistor is connected with the anode of the light emitting diode.

6. A drawer for a drawer-type switchgear as claimed in claim 1, wherein the reed switch terminals are connected in series between one of the power inputs of the motor reduction mechanism.