CN219178763U - Electrical contact temperature measuring device of electrical cabinet - Google Patents

Abstract

The utility model discloses an electrical contact temperature measuring device of an electrical cabinet. An electrical cabinet electrical contact temperature measurement device comprising: the oil box is made of copper, insulating oil is filled in the oil box, the whole oil box is of a U-shaped structure, wire contacts are surrounded by three sides of the conveying oil box, an insulating plug is mounted on one side of the oil box, and a temperature sensor is mounted on the insulating plug. The temperature measuring device for the electrical contact of the electrical cabinet provided by the utility model enables the temperature monitored by the temperature sensor to be more accurate.

Description

An electrical contact temperature measuring device for an electrical cabinet

technical field

The utility model relates to the technical field of temperature measurement of electric equipment, in particular to a temperature measurement device for electrical contacts of an electric cabinet.

Background technique

There are many electrical equipment in the power plant, but many of them are high-voltage equipment, including electrical cabinets, which are mainly used in the process of power system power generation, transmission, distribution and power conversion, as well as control and protection of electrical equipment. The components in the electrical cabinet are mainly composed of control components, frequency converters, circuit breakers, isolating switches, transformers and various protection devices. Since there are many high-voltage joints (contacts) in the electrical cabinet, the resistance at the joints is relatively high. High temperature is likely to be generated when the current is transmitted at the joint. Long-term high temperature is not conducive to the safe use of the equipment. Therefore, the joint needs to be monitored.

The utility model patent with the authorized notification number CN217358775U discloses a temperature measuring device for electrical contacts of an electrical cabinet, including a protective mechanism for protecting internal electrical equipment, and a lifting mechanism for driving the temperature sensor to rise and fall. The lifting mechanism is fixed on the Above the protective mechanism, although the device can monitor the temperature of the joints, there are certain disadvantages in the monitoring process: it judges whether the temperature at the joints is too high by monitoring the air temperature near the joints, while the electrical cabinet can There are many places where high temperature is generated, so it cannot be determined that the temperature rise is the high temperature generated at the junction, which is likely to cause misjudgment and large errors.

Therefore, it is necessary to provide an electrical cabinet electrical contact temperature measuring device to solve the above technical problems.

Utility model content

In view of the above situation, in order to overcome the defects of the prior art, the utility model provides a temperature measuring device for electrical contacts of an electrical cabinet so that the temperature monitored by the temperature sensor is more accurate.

In order to achieve the above object, the technical scheme adopted by the utility model is as follows:

The electrical contact temperature measuring device of the electrical cabinet includes: an oil box, the material of which is copper, and insulating oil is installed in the oil box, the whole of which is a U-shaped structure, and the wire contacts are surrounded by three sides of the delivery oil box, An insulating plug is installed on one side of the oil box, and a temperature sensor is installed on the insulating plug.

Preferably, the oil box has an integrated structure, and two copper pipes are arranged on the oil box, and the same screw rod runs through the two copper pipes, and the screw rod also runs through two copper pipes. wire.

Preferably, the oil box includes two independent boxes and multiple telescopic tube groups, and the two independent boxes are connected through multiple telescopic tube groups, so that the internal space is connected, which is beneficial to the temperature transfer inside the insulating oil, and the telescopic tube groups It can be extended or shortened to realize the clamping of wires of different thicknesses.

Preferably, the telescopic tube set includes a thick tube and a thin tube, and the thin tube is inserted into the thick tube and can move in the thick tube.

Preferably, a baffle is provided at one end of the thick tube, and a limiting plate is arranged at one end of the thin tube. down so that the two do not separate.

Preferably, a sealing ring is installed on the limiting plate, and the sealing ring plays a role of sealing so that the insulating oil will not flow out.

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

(1) The oil box in the utility model can absorb the heat generated at the junction of the wires in a timely manner and transfer it to the insulating oil inside, and the insulating oil is more stable than the heat transfer in the space, so that the temperature monitored by the temperature sensor is more accurate ;

(2) In the utility model, the telescopic tube group can be extended or shortened to realize the clamping of wires of different thicknesses, so that the independent box is in close contact with the wires and better absorbs heat at the joints.

Description of drawings

Fig. 1 is the structural representation of the electrical cabinet electric contact temperature measuring device provided by the utility model;

Fig. 2 is the schematic cross-sectional structure diagram of the electrical contact temperature measuring device of the electrical cabinet provided by the utility model;

Fig. 3 is the exploded schematic diagram of Fig. 2;

Fig. 4 is the structural representation of the electric cabinet electrical contact temperature measuring device provided by the utility model;

Fig. 5 is an enlarged view of part A in Fig. 4;

Fig. 6 is a structural schematic diagram of the electrical contact temperature measuring device of the electrical cabinet provided by the utility model.

Among them, the names corresponding to the reference signs are: 1-oil box, 11-independent box, 2-insulation plug, 3-temperature sensor, 4-copper tube, 5-screw, 6-nut, 7-thick tube, 71- Baffle plate, 8-thin tube, 81-limiting plate, 82-sealing ring.

Detailed ways

The utility model will be further described below in conjunction with the description of the drawings and the embodiments, and the mode of the utility model includes but not limited to the following embodiments.

Example 1

As shown in Figures 1-6, the electric cabinet electrical contact temperature measuring device provided by the utility model includes: an oil box 1, the material of the oil box 1 is copper, and the oil box 1 is filled with insulating oil. The oil box 1 has a U-shaped structure as a whole, and the wire contacts are surrounded by three sides of the delivery oil box 1. An insulating plug 2 is installed on one side of the oil box 1, and a temperature sensor 3 is installed on the insulating plug 2. The temperature sensor 3 The temperature of the insulating oil in the oil box 1 is monitored. When the temperature of the wire junction rises, the heat will be transferred to the insulating oil inside through the oil box 1, so that the temperature of the insulating oil rises. The temperature sensor 3 monitors the insulation at all times. The temperature of the oil can be grasped in real time at the temperature of the wire junction, so that the detection of the temperature of the wire junction is more accurate.

Example 2

As shown in Figures 1-3, the oil box 1 has an integrated structure, and two copper pipes 4 are arranged on the oil box 1, and the same screw rod 5 runs through the two copper pipes 4, and the screw rod 5 While penetrating through the copper pipe 4, two wires also run through, and a nut 6 is installed on the screw rod 5, and the nut 6 cooperates with the screw rod 5 to fix the two wires and the oil box 1 together.

Example 3

As shown in Figures 4-6, the oil box 1 includes two independent boxes 11 and multiple telescopic tube groups. The two independent boxes 11 are connected through multiple telescopic tube groups, so that the internal space is connected, which is conducive to insulating the oil inside. temperature transfer, and at the same time, the telescopic tube group can be extended or shortened to realize the clamping of wires of different thicknesses, so that the independent box 11 is in close contact with the wires and better absorbs the heat at the joints.

Further, the telescopic tube set includes a thick tube 7 and a thin tube 8, the thin tube 8 is inserted into the thick tube 7, and can move in the thick tube 7, thereby changing the distance between two independent boxes 11 .

Furthermore, a baffle 71 is provided at one end of the thick tube 7, and a limiting plate 81 is provided at one end of the thin tube 8. When the thick tube 7 and the thin tube 8 move to a certain distance in reverse, the stop Under the blocking of plate 71 and limit plate 81, the two can not be separated.

Furthermore, a sealing ring 82 is installed on the limiting plate 81, and the sealing ring 82 plays a role of sealing so that the insulating oil will not flow out.

The device is also equipped with a controller, the temperature sensor 3 is connected to the controller, and the controller can be connected to an alarm. When the temperature sensor 3 detects that the temperature of the insulating oil is too high, the signal will be transmitted to the controller, and the controller will start the alarm. ;

The temperature sensor 3 can also be connected with the overtemperature node on the protector inside the electrical cabinet. Once the temperature exceeds the standard, the protector can cut off the power supply and report a fault.

The above-mentioned embodiment is only one of the preferred embodiments of the present utility model, and should not be used to limit the protection scope of the present utility model, but any modification or embellishment without substantive meaning made on the main design idea and spirit of the present utility model, If the technical problems it solves are still consistent with the utility model, they should all be included in the protection scope of the utility model.

Claims (7)

1. An electrical cabinet electrical contact temperature measuring device, characterized in that, comprising: Oil box (1), the oil box (1) is equipped with insulating oil, the oil box (1) is a U-shaped structure as a whole, the wire contacts are surrounded by three sides of the delivery oil box (1), the oil box (1) An insulating plug (2) is installed on one side, and a temperature sensor (3) is installed on the insulating plug (2). 2. A temperature measuring device for electrical contacts of an electrical cabinet according to claim 1, characterized in that, the oil box (1) is provided with two copper pipes (4), and the two copper pipes (4) The same screw rod (5) runs through the inside. 3. A temperature measuring device for electrical contacts of an electrical cabinet according to claim 2, characterized in that the oil box (1) is an integral structure. 4. A kind of electric cabinet electric contact temperature measuring device according to claim 2, is characterized in that, described oil box (1) comprises two independent boxes (11) and a plurality of telescopic pipe groups, two independent boxes ( 11) Connected through multiple telescopic tube groups. 5. A temperature measuring device for electrical contacts of an electrical cabinet according to claim 4, characterized in that, the telescopic tube group includes thick tubes (7) and thin tubes (8), and the thin tubes (8) are inserted into The thick tube (7) is in and can move in the thick tube (7). 6. A temperature measuring device for electrical contacts of an electrical cabinet according to claim 5, characterized in that a baffle (71) is provided at one end of the thick tube (7), and a baffle (71) is provided at one end of the thin tube (8). Limit plate (81). 7. The temperature measuring device for electrical contacts of an electrical cabinet according to claim 6, characterized in that a sealing ring (82) is installed on the limiting plate (81).

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