CN215120225U

CN215120225U - Charging protection device for charger

Info

Publication number: CN215120225U
Application number: CN202121480429.7U
Authority: CN
Inventors: 何磊; 李勇
Original assignee: Shandong Laiwu Tobacco Co ltd
Current assignee: Shandong Laiwu Tobacco Co ltd
Priority date: 2021-06-30
Filing date: 2021-06-30
Publication date: 2021-12-10
Anticipated expiration: 2031-06-30

Abstract

The utility model relates to a charge protection device for machine charges, including locating the first box that charges machine one side, connecting circuit has in the first box, connecting circuit's one end is used for intercommunication external power source, and the other end is used for connecting the charging circuit that fork truck charges the machine, has the electric quantity module in the first box, and the electric quantity module can detect the current-voltage information in the connecting circuit, and the electric quantity module is connected with controller signal, and the controller can control connecting circuit's break-make to control fork truck charges the break-make of charging circuit in the machine.

Description

Charging protection device for charger

Technical Field

The utility model belongs to the technical field of power equipment, concretely relates to charge machine is with charging protection device.

Background

The statements in this section merely provide background information related to the present disclosure and may not necessarily constitute prior art.

The inventor knows that some chargers (such as forklift chargers) can reduce the voltage of 220V of the mains supply to 36V and then charge the electric equipment, most chargers have the protection functions of no-load protection, overload protection, full automatic stop and the like, but the charging process is basically in an unattended state when the chargers are arranged in a place far away from a personnel monitoring area, and no sound and light alarm device is arranged at the local position of the charger; no apparent indication of operating conditions; the working data of the electromechanical parameters of the charger, the environmental parameters, the temperature of the battery and the like are not clear.

Meanwhile, the duty room cannot know the working and standby states of the charger in time, and the duty room cannot stop charging in time under emergency.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a charge protection device for machine charges can solve one of above-mentioned technical problem at least.

In order to achieve the above object, one or more embodiments of the present invention provide a charging protection device for a charger, including a first box body disposed on one side of the charger, the first box body having a connection circuit therein, one end of the connection circuit being used for connecting an external power source, and the other end being used for connecting a charging circuit of a forklift charger; the first box body is internally provided with an electric quantity module for detecting current and voltage information in the connecting circuit, the electric quantity module is in signal connection with the controller, and the controller can control the on-off of the connecting circuit.

As a further improvement, a temperature detector, a humidity detector, a water immersion detector and a smoke detector which are in signal communication with the controller are arranged outside the first box body.

As a further improvement, an air switch with electric leakage is arranged in the first box body and is arranged in the connecting circuit in series.

As a further improvement, a contactor is arranged in the connecting circuit in series, and the contactor can be controlled by a controller to realize the on-off of the connecting circuit.

As a further improvement, the remote control system further comprises a second box body arranged in the remote control center, a first wireless module is arranged in the first box body, a second wireless module capable of wirelessly communicating with the first wireless module is arranged in the second box body, and the first wireless module can communicate with the controller.

The beneficial effects of one or more of the above technical solutions are as follows:

(1) the utility model discloses a realize the audible and visual alarm of machine that charges, show working data such as electromechanical parameter, environmental parameter that charge, be equipped with a charging protection device, can attach in the machine that charges of arbitrary model, on the basis that does not carry out the dismouting, realized the function upgrade of original machine that charges.

(2) The utility model discloses in utilize information such as temperature, humidity, cigarette sense in the sensor with environmental parameter, gather in real time and transmit for the controller, the controller of being convenient for when detecting unusual external environment condition, realize charging machine outage under the emergency.

(3) The second box body is arranged at the remote control center, the signal communication between the second box body and the first box body is realized in a wireless communication mode, the duty personnel can know the running state of the charger in time at the remote control center, and the charging is stopped remotely under the emergency condition.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this application, illustrate embodiments of the application and, together with the description, serve to explain the application and are not intended to limit the application.

Fig. 1 is a schematic front view of a first box in an embodiment of the present invention;

fig. 2 is an axial view of the first casing in the embodiment of the present invention;

fig. 3 is a schematic view of the internal structure of the first casing in the embodiment of the present invention;

fig. 4 is a schematic view of the internal structure of the second casing in the embodiment of the present invention;

in the figure, 1, a display screen; 2. a humidity detector; 3. an audible and visual alarm; 4. a water immersion detector; 5. an infrared temperature detector; 6. a touch screen; 7. an air switch with leakage; 8. an electric quantity module; 9. a first connection terminal; 10. a contactor; 11. a second connection terminal; 12. a first wireless module; 13. a PLC controller; 14. a first switching power supply; 15. a wiring board; 16. a third connection terminal; 17. a second wireless module; 18. a second switching power supply.

Detailed Description

As shown in fig. 1 to 4, a charging protection device for a charger, which is commonly used in the prior art, includes a first box body disposed on one side of the charger, the first box body has a connection circuit therein, one end of the connection circuit is used for communicating with an external power supply, and the other end of the connection circuit is used for connecting with a charging circuit of a forklift charger; the first box body is internally provided with an electric quantity module 8 for detecting current and voltage information in the connecting circuit, the electric quantity module 8 is in signal connection with the controller, and the controller can control the on-off of the connecting circuit.

The outer wall of the first box body is provided with a temperature detector, a humidity detector 2, a water immersion detector 4 and a smoke detector which are in signal communication with the controller. The temperature detector can adopt an infrared temperature detector 5, and can also adopt other structural forms under the condition of meeting the use requirement.

Specifically, the electric quantity module 8 should be able to detect the parameter information of current, voltage and electric quantity in the connection circuit, and it is only necessary to purchase from the market, and it belongs to the prior art to realize the detection of corresponding electric quantity parameters by using the electric quantity module 8, and the specific connection mode is not repeated here.

In this embodiment, the controller is a PLC controller 13; under the condition of meeting the use requirement, a singlechip or an ARM processor can also be adopted.

In this embodiment, in order to enable an operator to input charging parameter information, such as charging duration and charging electric quantity, to the controller outside the first box, the outer wall of the first box is provided with the touch screen 6, the touch screen 6 is in signal connection with the controller, the touch screen 6 is purchased from the market, and how to utilize the touch screen 6 to input information and the specific connection mode of the related connection terminal to the controller belongs to the prior art, and the details are not repeated here.

In this embodiment, in order to realize that the electric quantity module 8 or the related sensor gives an alarm locally after detecting the abnormal condition, the outer wall of the first box body is provided with the audible and visual alarm 3, and the audible and visual alarm 3 can communicate with the controller. Audible and visual annunciator 3 from market purchase can, how to realize audible and visual annunciator 3 and the signal intercommunication of controller and relevant binding post's concrete connected mode belongs to prior art, and this no longer gives details.

In this embodiment, in order to cut off the circuit after the leakage of the connection circuit, the first box is provided with the air switch 7 with leakage, and the air switch 7 with leakage is connected in series in the connection circuit. When the built-in sensor of the air switch with leakage 7 monitors that the leakage current is greater than 30mA, the leakage control tripping mechanism is directly triggered to trip rapidly without acquisition and judgment of the PLC 13.

In order to realize the local display function of the charging information, a display screen 1 connected with the controller through signals is arranged outside the first box body and used for displaying the detection data of the electric quantity module 8. The display screen 1 can be purchased from the market, and how to realize the signal communication between the display screen 1 and the controller and the specific connection mode of the related wiring terminal belongs to the prior art, and the detailed description is omitted here.

In this embodiment, in order to realize setting up the signal connection of each sensor, display screen 1, audible-visual annunciator 3, touch-sensitive screen 6 and the controller in first box outer wall department be equipped with first binding post 9 in the first box, first binding post 9 is connected in order to realize the signal intercommunication with controller passing signal line, and first binding post 9 is connected with second binding post 11 passing signal line, and second binding post 11 is connected with the signal output line of parts such as infrared temperature detector 5, temperature and humidity detector 2, water logging detector 4 and smoke detector respectively.

In this embodiment, in order to cut off the connection circuit in time when the controller finishes charging or receives an external command, the contactor 10 is connected in series in the connection circuit, and the contactor 10 can be controlled by the controller.

In order to realize the purpose of monitoring and controlling the on/off of the connection circuit by the remote control center, the present embodiment further includes a second box body disposed in the remote control center, the first box body is provided with a first wireless module 12, the second box body is provided with a second wireless module 17 capable of wirelessly communicating with the first wireless module 12, and the first wireless module 12 can communicate with the controller.

The second wireless module 17 can communicate with a remote control center through a signal line, in order to realize the communication between the second wireless module 17 and the remote control center, a third wiring terminal is arranged in the second box body, the third wiring terminal is respectively connected with a data line of the remote control center and a data line of the wiring board 15, and the wiring board 15 is connected with the second wireless module 17 through the data line.

In some embodiments, to achieve protection of the protection box against lightning, a large current that may be present in the connection circuit is led through the surge protector to a good ground.

Specifically, in order to realize power supply of each electronic component in the first box, a first switching power supply 14 is arranged in the first box, a second switching power supply 18 is arranged in the second box, and the first switching power supply 14 and the second switching power supply 18 are respectively communicated with the mains supply.

The working principle is as follows:

when the functions of overshoot prevention, overload prevention and idle load prevention are needed to be realized, the PLC 13 is used for collecting current data in the electric quantity module 8 in real time, the current data is compared with a current value set by a user through the touch screen 6 in real time, charging is stopped in time, and the audible and visual alarm 3 is triggered to give an alarm.

When the anti-leakage protection is needed, the built-in sensor with the leakage air switch 7 with the leakage function is used for detecting the current, when the leakage current is monitored to be larger than 30mA, the leakage control tripping mechanism is directly triggered to trip rapidly, and the collection and judgment of the PLC 13 are not needed.

When the timing function needs to be realized, the charging time recorded in the PLC 13 is compared with the charging time set by the touch screen 6 in real time, and when the charging time reaches the set time, the contactor 10 is controlled to disconnect the charging loop.

When the power-off protection and the under-voltage protection are needed to be realized, the power-off protection and the under-voltage protection are realized through the contactor 10, and when the power-off or the under-voltage (the voltage is lower than 180V) occurs, the coil of the contactor 10 in the attraction state is disconnected due to the fact that the attraction force is lost due to the power-off or the under-voltage.

When the remote stopping function needs to be realized, the PLC 13 in the first box body scans the stopping input signal of the second wireless module 17 in the second box body through the wireless module of the first wireless module 12, and when the stopping signal is scanned, the contactor 10 is timely disconnected, and the charging of the charger is stopped.

The first box body and the second box body are matched for use, so that an operator on duty can know data such as the field working state, the electric parameters, the environmental parameters and the battery temperature of the charger in time through the display box, and the operator on duty can stop charging in time and remotely under emergency conditions.

Although the present invention has been described with reference to the accompanying drawings, it is not intended to limit the scope of the present invention, and those skilled in the art should understand that various modifications or variations that can be made by those skilled in the art without inventive work are still within the scope of the present invention.

Claims

1. A charging protection device for a charger is characterized by comprising a first box body arranged on one side of the charger, wherein a connecting circuit is arranged in the first box body, one end of the connecting circuit is used for being communicated with an external power supply, and the other end of the connecting circuit is used for being connected with a charging circuit of a forklift charger; the first box body is internally provided with an electric quantity module which is used for detecting current and voltage information in the connecting circuit, the electric quantity module is in signal connection with the controller, and the controller can control the on-off of the connecting circuit; and an audible and visual alarm is arranged on the outer wall of the first box body and can be communicated with the controller.

2. The charging protection device for the charger according to claim 1, wherein a temperature detector, a humidity detector, a water immersion detector and a smoke detector which are in signal communication with the controller are arranged outside the first box body.

3. The charging protection device for the charger according to claim 1, wherein a touch screen is arranged on an outer wall of the first box body and used for inputting information of charging parameters to the controller.

4. The charging protection device for the charger according to claim 1, wherein an air switch with leakage is provided in the first case, and the air switch with leakage is provided in series in the connection circuit.

5. The charging protection device for the charger according to claim 1, wherein a display screen in signal connection with the controller is arranged outside the first box body and used for displaying detection data of the electric quantity module.

6. The charging protection device for the charger according to claim 2, wherein a first connection terminal is arranged in the first box body, the first connection terminal is in signal communication with the controller, the first connection terminal is connected with a second connection terminal through a signal line, and the second connection terminal is connected with signal output lines of the infrared temperature detector, the temperature and humidity detector, the water immersion detector and the smoke detection detector.

7. The charging protection device for the charger according to claim 1, wherein a contactor is connected in series in the connection circuit, and the contactor can be controlled by a controller to realize on/off of the connection circuit.

8. The charging protection device for the charger according to claim 1, further comprising a second box body disposed in the remote control center, wherein the first box body is provided with a first wireless module, the second box body is provided with a second wireless module capable of wirelessly communicating with the first wireless module, and the first wireless module is capable of communicating with the controller.

9. The charging protection device for the charger according to claim 8, wherein the second wireless module is capable of communicating with a remote control center through a signal line.