KR20100052350A - Heating device for refrigerant - Google Patents

Abstract

PURPOSE: A refrigerant heating apparatus is provided to rapidly raise a refrigerant temperature to a predetermined temperature by heating the refrigerant. CONSTITUTION: A refrigerant heating apparatus inductively heats the refrigerant flowing through a refrigerant pipe(10). The refrigerant heating apparatus comprises a heating part(110), a coil(120), and an insulating part. The heating part is screwed to the outer circumference of the refrigerant pipe. The coil is wound on the outer circumference of the heating part. The insulating part is installed at the outer circumference of the heating part to insulate the coil. The coil is placed at a mounting groove spirally formed at the outer circumference of the heating part.

Description

Refrigerant heating device {Heating device for refrigerant}

The present invention relates to an air conditioner, and more particularly, to a refrigerant heating device for heating a refrigerant circulating a heat exchange cycle.

In general, an air conditioner is a home appliance that cools or heats a predetermined space by using a heat exchange cycle using characteristics of a pressure and a temperature change of a refrigerant.

1 is a schematic view showing a general heat exchange cycle.

Referring to this, the heat exchange cycle, the compressor (1) for compressing the refrigerant into a gas state of high temperature and high pressure, the condenser for condensing the refrigerant compressed by the compressor (1) in the liquid phase by the heat radiation by the blowing of the cooling fan (6) (2), the capillary tube (4) for expanding the liquid refrigerant condensed in the condenser (2) to a low pressure liquid refrigerant by the throttling action, the liquid refrigerant condensed in the condenser (2) uniformly to the capillary tube (4) The low temperature and low pressure refrigerant expanded in the distributor 3 and the capillary tube 4 to be distributed are evaporated by the blowing of the cooling fan 7, while providing the cold air by using the latent heat of evaporation of the refrigerant, and then transferring the refrigerant to the compressor 1. And an evaporator 5 for evaporating to a low temperature low pressure gaseous refrigerant. Therefore, the refrigeration system of the air conditioner forms a series of heat exchange cycles consisting of the compressor (1)-condenser (2)-distributor (3)-capillary (4)-evaporator (5) to cool or heat the room. Will be.

However, in the case of the heat exchange cycle according to the related art, since the refrigerant circulating in the heat exchange cycle is maintained in a stable state during the initial operation of the air conditioner, even if the refrigerant compressed in the compressor 1 is used in a short time. Since the refrigerant pressure cannot be maintained as desired, a predetermined time is required to reach the set target temperature. Therefore, there is a problem that takes time to cool or heat the room using an air conditioner.

The present invention is to solve the problems caused by the prior art as described above, an object of the present invention is to provide a refrigerant heating device configured to be more quickly air conditioning in the room.

According to a first embodiment of the present invention for achieving the above object, the present invention provides a refrigerant heating apparatus for induction heating a refrigerant flowing through a refrigerant pipe, comprising: a heating unit screwed to an outer circumferential surface of the refrigerant pipe; And a coil wound around an outer circumferential surface of the heating unit. .

According to another embodiment of the present invention, the present invention provides a refrigerant heating device for induction heating a refrigerant flowing in a refrigerant pipe, comprising: a heating unit having a tubular shape having an inner circumferential surface corresponding to an outer circumferential surface of the refrigerant pipe; A coil wound around an outer circumferential surface of the heating unit; And a coupling part for increasing a contact area of the refrigerant pipe and the heating part. It includes.

According to another embodiment of the present invention, the present invention provides a refrigerant heating apparatus for induction heating a refrigerant flowing in a refrigerant pipe, comprising: a heating unit having a tubular shape having an inner circumferential surface corresponding to an outer circumferential surface of the refrigerant pipe; A coil wound around an outer circumferential surface of the heating unit; And a position movement preventing unit for preventing movement of a relative position with respect to the refrigerant pipe in the heating unit while the heating unit is installed in the refrigerant pipe. It includes.

According to the present invention, there is an advantage that the temperature of the refrigerant can reach the set target temperature more quickly by heating the refrigerant.

Hereinafter, a first embodiment of a refrigerant heating device according to the present invention will be described in more detail with reference to the accompanying drawings.

2 is a perspective view showing a first embodiment of a refrigerant heating device according to the present invention, Figure 3 is a cross-sectional view showing a first embodiment of the present invention.

Referring to this, the coolant heating unit 100 according to the present invention is installed on the outer circumferential surface of the coolant pipe 10 through which the coolant flows. The coolant pipe 10 in which the coolant heating unit 100 is installed is a coolant circulating in a heat exchange cycle. In the first embodiment, the refrigerant heating unit 100 is installed in the refrigerant pipe 10 connecting the compressor (not shown) and the evaporator (not shown).

The first coupling part 11 is provided on an outer circumferential surface of the refrigerant pipe 10. The first coupling part 11 is for coupling the refrigerant pipe 10 and the heating part 110 to be described later. To this end, the first coupling portion 11 is screwed to the second coupling portion 111 to be described later. In addition, the first coupling part 11 serves to increase the contact area between the refrigerant pipe 10 and the heating part 110. The first coupling part 11 is formed on the outer circumferential surface of the first coupling part 11 by a length corresponding to the length of the heating part 110. In the first embodiment, the first coupling part 11 is integrally formed on the outer circumferential surface of the refrigerant pipe 10, but the first coupling part 11 is formed separately to form the refrigerant pipe 10. It may be fixed to the outer circumferential surface.

The refrigerant heating unit 100 heats the refrigerant flowing through the refrigerant pipe 10. More specifically, the refrigerant heating unit 100 induction heating the refrigerant flowing through the refrigerant pipe (10). To this end, the refrigerant heating unit 100 includes a heating unit 110 and a coil 120.

The heating unit 110 is screwed to the outer circumferential surface of the refrigerant pipe 10, more specifically, the first coupling unit 11. The heating unit 110 is formed in a tubular shape having an inner diameter approximately corresponding to the outer diameter of the refrigerant pipe 10. The inner circumferential surface of the heating part 110 is provided with a second coupling part 111 that is screwed to the first coupling part 11. The heating unit 110 transmits heat generated by induction heating by the coil 120 to which the high frequency current is applied to the refrigerant pipe 10. More specifically, when a high frequency current is applied to the coil 120, resistance heat is generated by the eddy current formed in the heating unit 110 by an alternating magnetic field generated by the coil 120, and at the same time hysteresis The heating unit 110 is heated by generating heat due to scones. As the heating unit 110, a magnetic material, for example, stainless steel or iron may be used. In addition, the first coupling part 11 and the second coupling part 111 serve to fix the heating part 110 to the refrigerant pipe 10 and at the same time the refrigerant pipe 10 and the heating part ( It also serves to increase the contact area of the 110, that is, the heat transfer area.

The coil 120 is fixed to an outer circumferential surface of the heating unit 110. More specifically, the coil 120 is wound in a spiral shape on the outer circumferential surface of the heating unit 110. The coil 120 receives a high frequency current to generate a magnetic field for induction heating of the heating unit 110.

Hereinafter will be described the operation of the embodiment of the refrigerant heating device according to the present invention.

First, the coolant heating unit 100 is installed in the coolant tube 10. For example, after screwing the second coupling part 111 to the first coupling part 11, the coil 120 may be wound on an outer circumferential surface of the heating part 110. In addition, while the coil 120 is wound around the outer circumferential surface of the heating unit 110, the heating unit 110 may be screwed to the coolant pipe 10.

Next, in order to heat the refrigerant flowing through the refrigerant pipe 10 by the refrigerant heating part 100, a high frequency current is first applied to the coil 120. When a high frequency current is applied to the coil 120, a magnetic field is formed in the coil 120. In addition, heat generated by resistance heat and hysteresis is generated by the eddy current in the heating part 110 positioned in the magnetic field region of the coil 120.

In this way, the heat generated from the heating unit 110 is transferred to the refrigerant pipe (10). Therefore, the refrigerant flowing through the refrigerant pipe 10 is heated, so that the refrigerant compressed by the compressor may reach a predetermined target temperature and be delivered to the evaporator. In addition, the contact between the refrigerant pipe 10 and the heating unit 110 is substantially made between the first and second coupling portion 111. Therefore, the heat of the heating unit 110 can be more efficiently transferred to the refrigerant pipe 10.

Meanwhile, the heating unit 110 may be made of stainless steel or the like, which has a thermal expansion coefficient different from that of the copper material forming the refrigerant pipe 10. However, the heating unit 110 is coupled to the refrigerant pipe 10 by screwing the first and second coupling units 111. Therefore, the coolant tube 10 may be thermally contracted by a relatively low temperature refrigerant flowing therein, and the heating unit 110 may be heated to thermally expand to maintain a combined state.

Hereinafter, with reference to the accompanying drawings a second embodiment of a refrigerant heating device according to the present invention will be described in more detail.

4 is a cross-sectional view showing a second embodiment of a refrigerant heating device according to the present invention.

Referring to FIG. 4, in the present embodiment, the refrigerant heating unit 200 is installed on the outer circumferential surface of the refrigerant pipe 20 through which the refrigerant circulating in the heat exchange cycle flows. To this end, a first coupling part 21 is provided on an outer circumferential surface of the refrigerant pipe 20.

The refrigerant heating part 200 includes a heating part 210, a coil 220, and an insulating part 230. The heating part 210 is formed in a tubular shape, and a second coupling part 211 in which the first coupling part 21 is screwed is formed on an inner circumferential surface thereof. The coil 220 is wound around the outer circumferential surface of the heating unit 210. In addition, the insulation unit 230 is provided on an outer circumferential surface of the heating unit 210 including the coil 220. The insulator 230 serves to insulate the coil 220.

Hereinafter, a third embodiment of a refrigerant heating device according to the present invention will be described in more detail with reference to the accompanying drawings.

5 is a cross-sectional view showing a third embodiment of a refrigerant heating device according to the present invention.

Referring to FIG. 5, in the present embodiment, a first coupling part 31 is provided on an outer circumferential surface of the refrigerant pipe 30 through which a refrigerant circulating a heat exchange cycle flows. And a coolant heating unit 300 for heating the coolant is provided on the outer peripheral surface of the coolant pipe (30).

The refrigerant heating unit 300 includes a heating unit 310, a coil 320, and an insulation unit 230. The heating unit 310 is formed in a tubular shape, the inner peripheral surface is provided with a first coupling portion 31, the first coupling portion 31 is screwed. In addition, a seating groove 313 for installing the coil 320 is provided on an outer circumferential surface of the heating part 310. The seating recess 313 is formed by recessing the outer circumferential surface of the heating unit 310 in a spiral manner. The coil 320 is seated on an outer circumferential surface of the heating part 310, more specifically, the seating groove 313. In addition, the insulation unit 230 is provided on an outer circumferential surface of the heating unit 310 including the coil 320. The insulation unit 230 insulates the coil 320.

Hereinafter, with reference to the accompanying drawings a fourth embodiment of the refrigerant heating apparatus according to the present invention will be described in more detail.

6 is a cross-sectional view showing a fourth embodiment of a refrigerant heating device according to the present invention.

Referring to FIG. 6, in this embodiment, at least one catching groove 41 is formed on the outer circumferential surface of the refrigerant pipe 40. The locking groove 41 is formed by recessing a portion of the outer circumferential surface of the refrigerant pipe 40 in the circumferential direction.

The refrigerant heating part 400 includes a heating part 410 and a coil 420. The heating unit 410 is formed in a tubular shape having an inner diameter corresponding to the outer diameter of the coolant pipe 40. In addition, at least one locking protrusion 411 is provided on an inner circumferential surface of the heating unit 410. The locking protrusion 411 is formed by protruding part of the inner circumferential surface of the heating unit 410 in the circumferential direction. The locking projection 411 is a state in which the heating unit 410 is installed in the coolant tube 40, that is, in a state in which the inner circumferential surface of the heating unit 410 is in contact with or in close contact with the outer circumferential surface of the coolant tube 40. It is inserted into the locking groove 41. Therefore, the effect of preventing the movement of the relative position with respect to the refrigerant pipe 40 of the heating unit 410 according to the difference in thermal expansion coefficient of the refrigerant pipe 40 and the heating unit 410 can be expected. The coil 420 is wound in a spiral shape on the outer circumferential surface of the heating unit 10.

Within the scope of the basic technical spirit of the present invention as well as many other modifications are possible to those skilled in the art, the scope of the present invention should be interpreted based on the appended claims. .

According to the refrigerant heating apparatus according to the present invention configured as described above, the following effects are expected.

First, in the present invention, the refrigerant circulating the heat exchange cycle is heated by the refrigerant heating unit. Therefore, the load on the compressor is reduced and the cooling or heating of the room can be achieved more quickly.

In the present invention, the refrigerant heating unit is more easily coupled to the refrigerant pipe through which the refrigerant flows by screwing. Therefore, it is possible to easily install and disassemble the refrigerant heating unit.

In the present invention, the relative position of the refrigerant heating portion relative to the refrigerant tube is changed by the difference in the thermal expansion coefficient of the refrigerant pipe and the refrigerant heating portion by the combination of the first and second coupling portion or the locking groove and the locking projection. This is avoided. Therefore, the refrigerant heating device can heat the refrigerant flowing through the refrigerant pipe at a predetermined position.

1 is a schematic view showing a general heat exchange system.

Figure 2 is a perspective view showing a first embodiment of a refrigerant heating device according to the present invention.

3 is a cross-sectional view showing a first embodiment of the present invention.

Figure 4 is a cross-sectional view showing a second embodiment of the refrigerant heating device according to the present invention.

5 is a cross-sectional view showing a third embodiment of a refrigerant heating device according to the present invention.

6 is a cross-sectional view showing a fourth embodiment of a refrigerant heating device according to the present invention.

Claims (12)

In a refrigerant heating device for induction heating a refrigerant flowing through a refrigerant pipe: A heating unit screwed to an outer circumferential surface of the refrigerant pipe; And A coil wound around an outer circumferential surface of the heating unit; Refrigerant heating device comprising a. The method of claim 1, Refrigerant heating device further comprising an insulation provided on the outer circumferential surface of the heating unit to insulate the coil. The method of claim 1, The coil is a refrigerant heating device that is wound around the seating groove is formed spirally on the outer peripheral surface of the heating unit. In a refrigerant heating device for induction heating a refrigerant flowing through a refrigerant pipe: A heating part formed in a tubular shape having an inner circumferential surface corresponding to an outer circumferential surface of the refrigerant pipe; A coil wound around an outer circumferential surface of the heating unit; And A coupling part for increasing a contact area of the refrigerant pipe and the heating part; Refrigerant heating device comprising a. The method of claim 4, wherein The contact unit is provided on the outer circumferential surface of the refrigerant pipe and the inner circumferential surface of the heating unit, the refrigerant heating device is screwed together. The method of claim 4, wherein And a spiral seating groove in which the coil is seated and wound on an outer circumferential surface of the heating unit. The method of claim 4, wherein Refrigerant heating device further comprising an insulation for insulation of the coil. In a refrigerant heating device for induction heating a refrigerant flowing through a refrigerant pipe through which a refrigerant flows: A heating part formed in a tubular shape having an inner circumferential surface corresponding to an outer circumferential surface of the refrigerant pipe; A coil wound around an outer circumferential surface of the heating unit; And A position movement preventing unit for preventing movement of a relative position with respect to the refrigerant pipe in the heating unit while the heating unit is installed in the refrigerant pipe; Refrigerant heating device comprising a. The method of claim 8, The position shift prevention unit, A locking groove provided on one of an outer circumferential surface of the refrigerant pipe and an inner circumferential surface of the heating unit; And A locking protrusion provided on the other of the outer circumferential surface of the refrigerant pipe and the inner circumferential surface of the heating unit; Including, And a locking protrusion inserted into the locking groove while the inner peripheral surface of the heating unit is in contact with an outer peripheral surface of the refrigerant pipe. The method of claim 9, The locking groove is recessed from the outer peripheral surface of the refrigerant pipe, The locking projection is a refrigerant heating device protruding from the inner peripheral surface of the heating portion. The method of claim 8, And the contact portion is a screw portion provided on an outer circumferential surface of the refrigerant pipe and an inner circumferential surface of the heating portion and screwed together. The method of claim 8, And a spiral seating groove in which the coil is seated and wound on an outer circumferential surface of the heating unit.

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