Power plug with temperature monitoring function

Abstract

The utility model discloses a power plug with a temperature monitoring function, which comprises an insulating plug shell, the plugging end of the insulating plug shell is fixedly provided with a plugging conductive structure, the plugging two sides of the insulating plug shell are fixedly provided with pull-out separation blades, the lower end of the insulating plug shell is fixedly connected with an insulating outer wire tube, and the insulating outer wire tube is fixedly connected with a power supply. An oil storage groove is formed in the inner side of the insulating plug shell. According to the power plug with the temperature monitoring function, when the power plug with the temperature monitoring function encounters the problems of poor plugging contact, socket quality, overload and the like, the temperatures of the grounding metal sheet, the null line metal sheet and the live wire metal sheet rise; and then the temperature is conducted and diffused into the insulating oil in the oil storage tank through the grounding metal sheet, the null line metal sheet and the live wire metal sheet, so that the temperature sensing probe can detect the temperature on the grounding metal sheet, the null line metal sheet and the live wire metal sheet in time, and power-off protection is carried out in time.

Description

Technical Field

[0001] The utility model relates to the field of power plugs, and particularly relates to a power plug with temperature monitoring. Background Art

[0002] When a new energy vehicle is charged through slow charging at home, the power cord plug of the vehicle needs to be connected to the charging socket at home. Since there may be problems such as poor plug-in contact, socket quality, and overload between the power plug and the plugged-in socket, it is easy to cause the temperature at the plug-in point to rise. In order to avoid problems such as plug aging and fire caused by excessive temperature, a temperature sensor is provided inside the plug. Once the temperature is too high, the power converter for charging will cut off the power. However, at present, this temperature sensor is set inside the plug, and the heat conduction performance of the insulation structure of the plug itself is very poor, and it takes a long time for the temperature to reach the temperature sensor. Therefore, when the temperature sensor reaches the power-off temperature, the temperature at the plug-in point has already reached the power-off standard. In this case, it is very easy to cause a fire or damage to the socket and the plug. For this reason, we propose a power plug with temperature monitoring. Content of the Utility Model

[0003] The main purpose of the utility model is to provide a power plug with temperature monitoring, which can effectively solve the problems in the background art.

[0004] To achieve the above purpose, the technical solution adopted by the utility model is as follows:

[0005] A power plug with temperature monitoring includes an insulating plug housing. A plug-in conductive structure is fixedly installed at the plug-in end of the insulating plug housing. Pull-out stoppers are fixedly installed at both the plugging and unplugging sides of the insulating plug housing. An insulating outer wire tube is fixedly connected to the lower end of the insulating plug housing. An oil storage tank is provided inside the insulating plug housing, and a temperature sensing structure is fixedly installed in the middle of the inner wall of the oil storage tank.

[0006] Further, the plug-in conductive structure includes a grounding metal sheet, a neutral wire metal sheet, a live wire metal sheet, and connecting wires. The grounding metal sheet, the neutral wire metal sheet, and the live wire metal sheet are all fixedly installed on the insulating plug housing, and the grounding metal sheet, the neutral wire metal sheet, and the live wire metal sheet all pass through the oil storage tank and are electrically connected to the connecting wires.

[0007] Further, the temperature sensing structure includes a temperature sensor and a transmission wire, and the temperature sensor is electrically connected to the transmission wire.

[0008] Further, there are three connecting wires in total, which are respectively electrically connected to the grounding metal sheet, the neutral wire metal sheet, and the live wire metal sheet. The three connecting wires and the transmission wire are all wrapped in the insulating outer wire tube.

[0009] Furthermore, the inside of the oil storage tank is in a sealed state and filled with insulating oil.

[0010] Furthermore, the grounding metal sheet, neutral wire metal sheet, live wire metal sheet and temperature sensor probe do not contact each other inside the oil storage tank.

[0011] Compared with the prior art, the utility model has the following beneficial effects:

[0012] In the utility model, when the power plug with temperature monitoring encounters problems such as poor plug-in contact, socket quality and overload, the temperatures on the grounding metal sheet, neutral wire metal sheet and live wire metal sheet rise, and then are conducted and diffused to the insulating oil in the oil storage tank through the grounding metal sheet, neutral wire metal sheet and live wire metal sheet, so that the temperature sensor probe can timely detect the temperatures on the grounding metal sheet, neutral wire metal sheet and live wire metal sheet and cut off the power in time for protection. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 is an overall structural schematic diagram of a power plug with temperature monitoring according to the utility model;

[0014] Figure 2 is a partial cross-sectional view showing a power plug with temperature monitoring according to the utility model.

[0015] In the figure: 1, insulating plug housing; 2, plug-in conductive structure; 201, grounding metal sheet; 202, neutral wire metal sheet; 203, live wire metal sheet; 204, connecting wire; 3, pull-out flap; 4, insulating outer wire tube; 5, oil storage tank; 6, temperature sensing structure; 601, temperature sensor probe; 602, transmission wire. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0016] In order to make the technical means, creative features, achieved purposes and functions of the utility model easy to understand, the utility model will be further described below in conjunction with specific embodiments.

[0017] As Figure 1-2 shown, a power plug with temperature monitoring includes an insulating plug housing 1. A plug-in conductive structure 2 is fixedly installed at the plug-in end of the insulating plug housing 1. Pull-out flaps 3 are fixedly installed at both the plugging and unplugging sides of the insulating plug housing 1. An insulating outer wire tube 4 is fixedly connected to the lower end of the insulating plug housing 1. An oil storage tank 5 is provided inside the insulating plug housing 1. A temperature sensing structure 6 is fixedly installed in the middle of the inner wall of the oil storage tank 5;

[0018] The plug-in conductive structure 2 includes a grounding metal sheet 201, a neutral wire metal sheet 202, a live wire metal sheet 203, and connecting wires 204. The grounding metal sheet 201, the neutral wire metal sheet 202, and the live wire metal sheet 203 are all fixedly installed on the insulating plug housing 1, and the grounding metal sheet 201, the neutral wire metal sheet 202, and the live wire metal sheet 203 all pass through the oil storage tank 5 and are electrically connected to the connecting wires 204; the temperature sensing structure 6 includes a temperature sensing probe 601 and a transmission wire 602, and the temperature sensing probe 601 is electrically connected to the transmission wire 602; there are three connecting wires 204 in total, and they are respectively electrically connected to the grounding metal sheet 201, the neutral wire metal sheet 202, and the live wire metal sheet 203. The three connecting wires 204 and the transmission wire 602 are all wrapped in the insulating outer conduit 4. The other ends of the connecting wires 204 and the transmission wire 602 are both connected to the power converter; the inside of the oil storage tank 5 is in a sealed state and filled with insulating oil; the grounding metal sheet 201, the neutral wire metal sheet 202, the live wire metal sheet 203, and the temperature sensing probe 601 do not contact each other inside the oil storage tank 5.

[0019] It should be noted that the present utility model is a power plug with temperature monitoring. When in use, the grounding metal sheet 201, the neutral wire metal sheet 202, and the live wire metal sheet 203 are plugged into a household socket. If problems such as poor contact, socket quality, and overload occur after plugging, resulting in an increase in the temperature at the plugging point, the grounding metal sheet 201, the neutral wire metal sheet 202, and the live wire metal sheet 203 will first heat up. At this time, the temperature will be quickly transmitted to the insulating oil in the oil storage tank 5 through the grounding metal sheet 201, the neutral wire metal sheet 202, and the live wire metal sheet 203, so that the insulating oil quickly heats up. Because the heat conduction ability of the insulating oil is very fast, the temperature sensing probe 601 can quickly sense the temperature rise, which greatly speeds up the rate at which the temperature sensing probe 601 senses the temperature and can feedback the high temperature faster, thus avoiding losses caused by excessive temperature.

[0020] The above shows and describes the basic principles, main features, and advantages of the present utility model. Those skilled in the art should understand that the present utility model is not limited by the above embodiments. What is described in the above embodiments and the specification only illustrates the principles of the present utility model. Without departing from the spirit and scope of the present utility model, the present utility model will have various changes and improvements, and these changes and improvements all fall within the scope of the present utility model claimed. The scope of protection claimed by the present utility model is defined by the appended claims and their equivalents.

Claims

1. A power plug with temperature monitoring, characterized in that: The invention comprises an insulating plug shell (1), a plug-in conductive structure (2) being fixedly mounted on the plug-in end of the insulating plug shell (1), pull-out blocking pieces (3) being fixedly mounted on both sides of the plug-in and pull-out positions of the insulating plug shell (1), an insulating outer line tube (4) being fixedly connected to the lower end of the insulating plug shell (1), an oil storage tank (5) being provided on the inner side of the insulating plug shell (1), and a temperature sensing structure (6) being fixedly mounted on the middle part of the inner wall of the oil storage tank (5).

2. A power plug with temperature monitoring according to claim 1, characterized in that: The plug-in conductive structure (2) comprises a grounding metal sheet (201), a neutral metal sheet (202), a live metal sheet (203) and a connecting wire (204); the grounding metal sheet (201), the neutral metal sheet (202) and the live metal sheet (203) are all fixedly mounted on the insulating plug housing (1); and the grounding metal sheet (201), the neutral metal sheet (202) and the live metal sheet (203) are all electrically connected to the connecting wire (204) by passing through the oil storage tank (5).

3. A power plug with temperature monitoring according to claim 2, characterized in that: The temperature sensing structure (6) comprises a temperature sensing probe (601) and a transmission wire (602), and the temperature sensing probe (601) is electrically connected to the transmission wire (602).

4. A power plug with temperature monitoring according to claim 3, characterized in that: There are three connecting wires (204) in total, and they are electrically connected to the grounding metal sheet (201), the neutral wire metal sheet (202) and the live wire metal sheet (203) respectively. The three connecting wires (204) and the transmission wire (602) are all wrapped in an insulating outer wire tube (4).

5. A power plug with temperature monitoring according to claim 4, characterized in that: The interior of the oil storage tank (5) is in a sealed state and is filled with insulating oil liquid.

6. A power plug with temperature monitoring according to claim 5, characterized in that: The grounding metal sheet (201), the neutral metal sheet (202), the live metal sheet (203) and the temperature sensing probe (601) are not in contact with each other in the inner part of the oil storage tank (5).

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