CN202502852U - Indirect liquid-cooled variable resistance load - Google Patents

Abstract

The utility model relates to an indirect liquid-cooled variable resistance load which comprises a sliding variable resistance component, a heat pipe, a liquid-cooled component and a fixing connection component. The sliding variable resistance component comprises a resistance wire, a metal sliding sheet, a metal rod, wiring terminals, a sliding handle, an insulation block and a limited graduation scale, the heat pipe consists of an evaporation section and a condensation section, the liquid-cooled component comprises a water tank, a water replenishing port and a water discharging port, and the fixing connection component comprises a shell, end covers and a base. The indirect liquid-cooled variable resistance load has the advantages that the heat pipe is used as a heat transmission element and has excellent heat transmission effects, so that heat can be quickly transmitted to liquid working medium in the water tank, and heat generated by electricity is transformed into latent heat or sensible heat of liquid; liquid cooling is used, but the liquid does not contact with a resistor directly; and a method of sliding resistance adjustment is adopted, so that capacity of resistance load can be conveniently adjusted to meet requirements of continuous changing of debugging load.

Description

A kind of indirect liquid-cooled variable resistive load

Technical field

The utility model relates generally to a kind of ohmic load, and especially a kind of is the variable resistive load of cooling working medium based on heat pipe, with liquid.

Background technology

Under the historical background of energy crisis and environmental pollution, new energy technology, renewable energy technologies and distributed energy technology are able to abundant development.Distributed power generation mainly comprises solar energy power generating, wind power generation, small-sized fuel engine power generation etc.In order to guarantee power grid security, above-mentioned distributed power generation equipment forbids incorporating into public electric wire net in the debug phase.Therefore, these distributed power generation equipment need to use suitable load to consume it and send electric power when experimental study and engineering debug.Ohmic load is exactly wherein a kind of.

Ohmic load utilizes Joule effect that electric energy is converted into heat energy.In order to debug needs, the capacity of the ohmic load just resistance of resistor is variable.The simplest ohmic load is slide rheostat, variable rheostat.When the capacity of ohmic load is very big, must the heat that resistance produces be taken away in order to avoid resistance temperature is too high and damage.Therefore, the type of cooling of load is very crucial in the design of ohmic load.The cooling means that generally adopts at present is that blower fan is forced cooling, but the less blower fan cooling effect that causes of cross-ventilation heat exchange coefficient is not good.If adopt direct liquid cooling, cooling effect is better than using air, still may cause accidents such as short circuit owing to the insulating properties of some liquid is bad.

Summary of the invention

In order both to reach the cooling effect of liquid cooling, avoid liquid to contact the accident of being short-circuited again with resistance, the utility model provides a kind of indirect liquid-cooled variable resistive load.

The utility model for the technical scheme that solves its technical problem and adopt is, this device comprises sliding and becomes resistance assembly, heat pipe, liquid cooling assembly and be fixedly connected assembly; Described slip becomes the resistance assembly and comprises resistance wire, metal slide plate, metallic rod, binding post, sliding handle, collets, resistance ruler; Said heat pipe is made up of evaporation section and condensation segment, and described liquid cooling assembly comprises water tank, water supplement port and discharge outlet; Said fixed connection assembly comprises shell, end cap and base; Said resistance wire is wrapped in the evaporation section of heat pipe; The resistance wire exposed part contacts with the metal slide plate; The metal slide plate contacts with metallic rod and is slidingly connected with the metallic rod formation, and resistance wire one end and metallic rod link to each other with the two poles of the earth of power supply respectively through binding post, constitute a slip resistance variable load; As the heat pipe of heat transfer element, twine resistance wire on its evaporation section, its condensation segment is placed in the water tank, and the heat that is changed into by electricity passes through the liquid in the heat pipe heating water tank.

The beneficial effect of the utility model is: heat pipe that the utility model adopts has good heat-transfer effect as heat transfer element, can be very fast with the liquid working substance in the heat transferred feed-tank, and the thermal transition that electricity produces becomes the latent heat or the sensible heat of liquid; The utility model uses liquid cools, but liquid does not directly contact with resistance.The utility model adopts slidingtype resistance adjustment mode, can conveniently regulate the capacity of ohmic load, satisfies the requirement of debugging load continually varying.

Description of drawings:

Fig. 1 is the internal structure sketch map of the utility model;

Fig. 2 is the vertical view of the utility model.

Embodiment:

Below in conjunction with accompanying drawing and embodiment the utility model is further described.

To shown in Figure 2, a kind of indirect liquid-cooled variable resistive load device, this device comprise that the change of sliding hinders assembly, heat pipe 2, liquid cooling assembly and is fixedly connected assembly by Fig. 1; Described slip becomes the resistance assembly and comprises resistance wire 1, metal slide plate 3, metallic rod 4, binding post 5, sliding handle 6, collets 7, resistance ruler 8; Said heat pipe 2 is made up of evaporation section and condensation segment, and it is built-in with liquid working substance, and described liquid cooling assembly comprises water tank 12, water supplement port 13 and discharge outlet 14; Said fixed connection assembly comprises shell 9, end cap 10 and base 15; Described sliding handle 6 is fixedly connected with metal slide plate 3 through collets 7, and said resistance wire 1 is wrapped in the evaporation section of heat pipe 2, and resistance wire 1 exposed part contacts with metal slide plate 3; Metal slide plate 3 contacts with metallic rod 4 and is slidingly connected with metallic rod 4 formations; The slip of metal slide plate 3 can change the resistance of resistance wire 1, thereby changes the power of ohmic load, and the two ends of said shell 9 are sealed through bolt 11 by end cap 10; Two end cap 10 inside have groove; Groove is built-in with binding post 5, and resistance wire 1 one ends and metallic rod 4 link to each other with the two poles of the earth of power supply respectively through binding post 5, constitute a slip resistance variable load; Resistance ruler 8 places on the shell 9 through the mode of bonding or welding; Its position is just in time other at sliding handle 6; The current resistance that shows this ohmic load as the heat pipe 2 of heat transfer element, is twined resistance wire 1 on its evaporation section; Its condensation segment is placed in the water tank 12, and the heat that is changed into by electricity passes through the liquid in heat pipe 2 heating water tank 12.Be provided with the water supplement port 13 and discharge outlet 14 of valve on the water tank 12 respectively, valve is opened or is closed according to the operation needs, and water supplement port 13 is used for replenishing cold water; Discharge outlet 14 is used to discharge hot water; Described heat pipe 2 has the heat conductivility that is superior to metal, can adopt gravity-type or imbibition core pattern heat pipe, in order to prevent short circuit and electric shock; The heat pipe package material can adopt nonmetallic materials, like pottery.

During use, energized, resistance wire 1 energising, the liquid working substance evaporation in heat pipe 2 evaporation sections, the liquid working substance in the condensation segment of heat pipe 2 is caught a cold and is condensed, and liberated heat has heated the liquid in the water tank 12.

Claims (1)

1. an indirect liquid-cooled variable resistive load device is characterized in that, this device comprises that the change of sliding hinders assembly, heat pipe (2), liquid cooling assembly and is fixedly connected assembly; Described slip becomes the resistance assembly and comprises resistance wire (1), metal slide plate (3), metallic rod (4), binding post (5), sliding handle (6), collets (7), resistance ruler (8); Said heat pipe (2) is made up of evaporation section and condensation segment, and described liquid cooling assembly comprises water tank (12), water supplement port (13) and discharge outlet (14); Said fixed connection assembly comprises shell (9), end cap (10) and base (15); Said resistance wire (1) is wrapped in the evaporation section of heat pipe (2); Resistance wire (1) exposed part contacts with metal slide plate (3); Metal slide plate (3) contacts with metallic rod (4) and is slidingly connected with metallic rod (4) formation; Resistance wire (1) one end and metallic rod (4) link to each other with the two poles of the earth of power supply respectively through binding post (5), constitute a slip resistance variable load; Heat pipe (2) as heat transfer element twines resistance wire (1) on its evaporation section, its condensation segment is placed in the water tank (12), and the heat that is changed into by electricity passes through the liquid in heat pipe (2) heating water tank (12).

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