CN213689834U - Insulating monitor of special equipment under water - Google Patents

Abstract

The utility model discloses an insulating monitor of special equipment under water relates to monitoring auxiliary assembly technical field, can make the direct current lithium cell use aloft and under water for detect the lithium cell because of the wire damage, the connector leaks, the abnormal conditions such as the unusual short circuit of equipment shell current potential that causes such as consumer short circuit, and report current electrical power generating system insulating state to upper controller, concrete scheme is: including base, casing, monitoring subassembly and connector, the monitoring subassembly includes auxiliary power supply, high voltage acquisition circuit, data processing circuit, communication circuit and control circuit, and the encapsulation of monitoring subassembly is in base and casing, the connector extend to base or casing outside and with monitoring subassembly electric connection, be equipped with resistance in the monitoring subassembly circuit, the shell and the casing contact of resistance. The utility model provides an underwater special equipment insulation monitor which can be used underwater; the insulation monitor for the underwater special equipment designs a plurality of resistors on a circuit, so that the monitoring effect is better.

Description

Insulating monitor of special equipment under water

Technical Field

The utility model relates to a monitoring auxiliary assembly technical field, more specifically say, it relates to an insulating monitor of special equipment under water.

Background

The traditional mode of the bridge resistor of the insulation test circuit adopts a power resistor, and the traditional power resistor can meet the requirements of the use environment due to the fact that equipment is not sealed. Because service environment changes for under water, needs equipment be for encapsulated situation, and traditional power resistor can't satisfy the environment use under water because self generates heat and the heat is difficult to give off.

SUMMERY OF THE UTILITY MODEL

In order to solve the technical problem, the utility model provides an insulating monitor of special equipment under water can make the direct current lithium cell use aloft and under water for detect the lithium cell because of the wire damage, the connector leaks, the unusual circumstances such as the unusual short circuit of equipment shell current potential that causes such as consumer short circuit, and report current electrical power generating system insulating state to upper controller.

The above technical purpose of the present invention can be achieved by the following technical solutions:

the utility model provides an insulating monitor of special equipment under water, includes base, casing, monitoring subassembly and connector, and the monitoring subassembly includes auxiliary power supply, high voltage acquisition circuit, data processing circuit, communication circuit and control circuit, and the encapsulation of monitoring subassembly is in base and casing, and the connector extend to base or casing outside and with monitoring subassembly electric connection, be equipped with resistance in the monitoring subassembly circuit, the shell and the casing contact of resistance.

In the above scheme, when the equipment works underwater, the heat conduction generated by the resistor can be enhanced through the shell, so that the resistor is prevented from being overheated, and the equipment is prevented from being damaged. In various embodiments, the housing may be made of a metallic material.

Preferably, the circuit of the monitoring assembly comprises a first resistor RW1, a second resistor RW2, a third resistor RW3, a fourth resistor RW4 and a fifth resistor RW5, the fourth resistor and the fifth resistor are connected in series, the first resistor and the second resistor are connected in series and connected in parallel with the fourth resistor, the second resistor and the third resistor are connected in series and connected in parallel with the fifth resistor, a first switch is arranged between the first resistor and the second resistor, and a second switch is arranged between the second resistor and the third resistor.

As a preferred scheme, a plurality of electrical connectors are arranged in the connector, and a rubber sealing ring is arranged on the side, close to the shell, of the connector.

In the above preferred embodiment, the rubber seal ring is annularly arranged, and when the corresponding device is connected with the connector, the device is inserted from the opening of the connector, and when reaching the bottom, the device touches the rubber seal ring, and then stops being inserted; therefore, the situation that the connector is abraded due to repeated plugging and unplugging of the connector can be avoided, and the protection effect is achieved; and the rubber seal ring can also realize the sealing effect and can prevent electric leakage.

Preferably, the housing is integrally formed.

In the preferred scheme, the condition that the sealing performance of the splicing piece is poor can be avoided.

Preferably, the corners of the base and the shell are designed to be arc-shaped.

In the preferred scheme, the arc-edge corner has better stability relative to the right-angle corner, and is not easy to damage human bodies and peripheral objects.

To sum up, the utility model discloses following beneficial effect has:

(1) the utility model provides an underwater special equipment insulation monitor which can be used underwater;

(2) the utility model designs a plurality of resistors on the circuit, so that the monitoring effect is better;

(3) the underwater special equipment insulation monitor provided by the utility model has the advantages of simple structure, good use effect, and good economical efficiency and practicability;

(4) the utility model provides a blank of current market technique is overcome to special equipment insulation monitor under water, provides a direct current lithium cell leakage detection device, effectively solves the current lithium cell leakage detection problem.

Drawings

Fig. 1 is a schematic structural diagram of an insulation monitor for underwater special equipment according to an embodiment of the present invention;

fig. 2 is a side view of the insulation monitor for underwater special equipment according to the embodiment of the present invention;

fig. 3 is a schematic structural diagram of a connector according to an embodiment of the present invention;

fig. 4 is a circuit diagram of the insulation monitor for underwater special equipment according to the embodiment of the present invention;

wherein:

1. a housing; 2. a connector; 3. a base; 4. a rubber seal ring.

Detailed Description

This specification and claims do not intend to distinguish between components that differ in name but not function. In the following description and in the claims, the terms "include" and "comprise" are used in an open-ended fashion, and thus should be interpreted to mean "include, but not limited to. "substantially" means within an acceptable error range, within which a person skilled in the art can solve the technical problem to substantially achieve the technical result.

The terms in upper, lower, left, right and the like in the description and the claims are combined with the drawings to facilitate further explanation, so that the application is more convenient to understand and is not limited to the application.

The present invention will be described in further detail with reference to the accompanying drawings.

The bridge resistor of the insulation test circuit adopts a high-power customized resistor with a heat dissipation device, and the resistor is structurally fixed on the sealing shell to enhance heat conduction. When the device is working underwater, heat can be conducted through the metal shell.

And in the working process, the corresponding equipment is connected with the connector, and the direct-current lithium battery is electrified to detect the electric leakage.

The utility model discloses a main function is:

1. the insulation monitor is main leakage detection equipment of a 300V lithium battery power supply system, and the equipment consists of an auxiliary power supply, a high-voltage acquisition circuit, a data processing circuit, a communication circuit and a control circuit.

2. The device input voltage DC28.5V, the monitoring voltages DC 290V-DC 310V,

3. the voltage to ground and the resistance to ground of the 1-section bus can be detected;

4. the jump of the voltage to ground of the bus is less than Ukm/10(Ukm is the bus voltage) when no insulation fault occurs;

5. the ground resistance of the bus which exists at the same time as the positive and negative can be detected;

6. the bus resistance measurable range is 10K omega-99.9K omega;

7. supporting RS485 communication interface, and communicating with upper controller

8. The utility model discloses the processing side, the assembly is simple, masters easily moreover.

The utility model provides an insulating monitoring devices of special equipment, what this equipment structurally mainly need solve is the leakproofness, adopts electrically conductive sealing washer, sealing connector to seal. The casing integrated into one piece can adopt monoblock section bar to mill, avoids splice sealing performance poor.

The present embodiment is only for explaining the present invention, and it is not limited to the present invention, and those skilled in the art can make modifications to the present embodiment without inventive contribution as required after reading the present specification, but all of them are protected by patent laws within the scope of the claims of the present invention.

Claims (5)

1. The utility model provides an insulating monitor of special equipment under water, its characterized in that includes base, casing, monitoring subassembly and connector, and the monitoring subassembly includes auxiliary power supply, high voltage acquisition circuit, data processing circuit, communication circuit and control circuit, and the monitoring subassembly encapsulation is in base and casing, and the connector extends to base or casing outside and with monitoring subassembly electric connection, be equipped with resistance in the monitoring subassembly circuit, the shell and the casing contact of resistance.

2. The underwater special equipment insulation monitor according to claim 1, wherein a circuit of the monitoring assembly comprises a first resistor, a second resistor, a third resistor, a fourth resistor and a fifth resistor, the fourth resistor and the fifth resistor are connected in series, the first resistor and the second resistor are connected in series and connected in parallel with the fourth resistor, the second resistor and the third resistor are connected in series and connected in parallel with the fifth resistor, a first switch is arranged between the first resistor and the second resistor, and a second switch is arranged between the second resistor and the third resistor.

3. The instrument of claim 2, wherein the connector has a plurality of electrical connectors therein, and a rubber seal is disposed on the side of the connector adjacent to the housing.

4. The underwater special equipment insulation monitor of claim 3, wherein the housing is integrally formed.

5. The underwater special equipment insulation monitor of claim 4, wherein corners of the base and the housing are designed with curved edges.

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