WO2020207240A1 - Quick heating module and air conditioner - Google Patents

Abstract

Disclosed are a quick heating module (5) and an air conditioner (1000). The quick heating module (5) comprises: a refrigerant heat exchanger (54) defining a refrigerant channel; an electromagnetic induction heating piece (53), wherein the electromagnetic induction heating piece (53) is arranged on the refrigerant heat exchanger (54); and an alternating magnetic field generator (52), wherein the alternating magnetic field generator (52) is arranged close to the electromagnetic induction heating piece (53) and sends an alternating magnetic field to the electromagnetic induction heating piece (53).

Description

Fast heat module and air conditioner

Cross references to related applications

This application is based on a Chinese patent application with an application number of 201920476599.4, an application date of April 8, 2019, an application number of 201910277490.2, a Chinese patent application with an application date of April 08, 2019, and an application number of 201920469021.6, the application date of A Chinese patent application was filed on April 8, 2019, and the priority of the above-mentioned Chinese patent application is claimed. The entire content of the above-mentioned Chinese patent application is hereby incorporated into this application by reference.

Technical field

This application relates to the technical field of heating equipment, and in particular to a rapid heating module and an air conditioner.

Background technique

In a low temperature environment, most air conditioners are limited by the system itself. The refrigerant heat cannot be quickly increased during the startup phase, resulting in slow heating speed, and the indoor temperature cannot quickly heat up, which cannot meet the needs of users to quickly turn on and heat up in winter. It has also become a common pain point for air conditioners in the market.

To solve this problem, the prior art proposes a refrigerant heating structure in which an electric heater is directly installed in a copper tube to heat the refrigerant, so as to improve the thermal efficiency of the refrigerant. However, with this structure, the copper tube forming and manufacturing technology is too complicated, and the sealing reliability of the joint between the electric heater and the copper tube is poor. In some cases, the electric heater may dry out. In addition, because the electric heating tube is in direct contact with the refrigerant, that is, electricity and refrigerant are not completely isolated, electrical safety problems such as dry burning of electric heating and line breakdown cannot be avoided.

Summary of the invention

This application aims to solve at least one of the technical problems existing in the prior art. To this end, the present application proposes a rapid heating module that quickly heats the refrigerant.

This application also aims to propose an air conditioner that can quickly heat the compressor exhaust.

The quick-heating module according to the embodiment of the present application includes: a refrigerant heat exchanger defining a refrigerant passage in the refrigerant heat exchanger; an electromagnetic induction heating element, the electromagnetic induction heating element is used to heat the refrigerant heat exchanger Alternating magnetic field generator, the alternating magnetic field generator is located adjacent to the electromagnetic induction heating element and sends an alternating magnetic field to the electromagnetic induction heating element.

According to the instant heating module of the embodiment of the present application, an electromagnetic induction heating element is arranged on the refrigerant heat exchanger, and an alternating magnetic field generator is arranged for the electromagnetic induction heating element, so that the electromagnetic induction heating element generates heat under the action of electromagnetic induction to heat the refrigerant The refrigerant in the heat exchanger. This refrigerant heating method enables the refrigerant in the refrigeration equipment or heating equipment to be quickly heated, and the electricity can be separated from the refrigerant. Compared with the structure in which the electric heating is directly arranged in the refrigerant copper tube, it not only reduces the technological requirements and processing difficulty of the refrigerant heat exchanger, but also avoids electrical safety problems such as electric heating dry burning and line breakdown.

In some embodiments, the electromagnetic induction heating element is arranged between the refrigerant heat exchanger and the alternating magnetic field generator, and the electromagnetic induction heating element is in direct contact with the refrigerant heat exchanger.

In some embodiments, the refrigerant heat exchanger is a microchannel heat exchanger.

In some embodiments, the electromagnetic induction heating element is a plate element.

Optionally, the thickness of the electromagnetic induction heating element is less than or equal to 5 mm.

In some embodiments, the electromagnetic induction heating element is connected to the refrigerant heat exchanger by a fastener.

In some embodiments, solder or solder fins are provided between the electromagnetic induction heating element and the refrigerant heat exchanger and connected by welding.

In some embodiments, a thermal conductive agent layer is provided between the electromagnetic induction heating element and the refrigerant heat exchanger.

In some embodiments, a heat insulating element is provided between the alternating magnetic field generator and the electromagnetic induction heating element.

In some embodiments, the alternating magnetic field generator is a coil disk.

Optionally, the distance between the coil disk and the electromagnetic induction heating element is 1-20 mm.

Specifically, the overlapping area of the orthogonal projection of the coil disk and the electromagnetic induction heating element on the refrigerant heat exchanger occupies at least half of the area of the orthogonal projection of the electromagnetic induction heating element on the refrigerant heat exchanger .

Further, the coil disk includes: a coil support; a wire body, the wire body is wound on the coil support, and both ends of the wire body are terminals.

Furthermore, the coil disk further includes a magnetic strip, and the magnetic strip is arranged on the coil support.

Optionally, the extension line of the magnetic stripe and the tangent line of the conductor body at the intersection with the extension line are perpendicular.

Optionally, a magnetic strip fixing slot for limiting the magnetic strip is provided on the coil support.

Optionally, a wire slot is provided on the coil support, and the wire body is clamped in the wire slot.

Optionally, the coil support is provided with a crimping hook for clamping the terminal.

Optionally, the coil support is substantially rectangular, and the wire body is wound into a flat toroidal coil.

Optionally, the coil disk includes: a pressure-resistant sheet provided on the coil support and located on a side of the wire body facing the electromagnetic induction heating element.

In some specific embodiments, the electromagnetic induction heating element is provided on the refrigerant heat exchanger, and the quick-heating module further includes: an outer protector, and the refrigerant heat exchanger and the coil disk are both connected to The outer protective part is used to maintain the distance between the coil disk and the electromagnetic induction heating element.

The air conditioner according to the embodiment of the present application includes: a compressor and a rapid heating module, the rapid heating module is the rapid heating module according to the above embodiment of the present application, and the refrigerant passage of the refrigerant heat exchanger is The exhaust port of the compressor is connected.

According to the air conditioner of the embodiment of the present application, the rapid heating module is provided on the discharge side of the compressor to rapidly increase the temperature of the compressor discharge, which can realize the requirement of the air conditioner to start rapid heating in winter. By installing an electromagnetic induction heating element on the refrigerant heat exchanger and an alternating magnetic field generator for the electromagnetic induction heating element, the electromagnetic induction heating element can generate heat under the action of electromagnetic induction to heat the refrigerant in the refrigerant heat exchanger, which can be isolated Electricity and refrigerant not only reduce the technological requirements and processing difficulty of refrigerant heat exchangers, but also avoid electrical safety problems such as dry burning of electric heating and line breakdown.

The additional aspects and advantages of the present application will be partially given in the following description, and some will become obvious from the following description, or be understood through the practice of the present application.

Description of the drawings

The above and/or additional aspects and advantages of the present application will become obvious and easy to understand from the description of the embodiments in conjunction with the following drawings, in which:

Fig. 1 is a corresponding schematic diagram of the assembly of the refrigerant heat exchanger and the electromagnetic induction heating element of the rapid heating module in an embodiment.

Figure 2 is a side view of a refrigerant heat exchanger and electromagnetic induction heating element in an embodiment.

Figure 3 is a top view of an instant thermal module in one embodiment.

Fig. 4 is a side view of a fast heat module in another embodiment.

Fig. 5 is an exploded schematic diagram of a fast thermal module in another embodiment.

Fig. 6 is a rear view of the coil disk of the instant heating module in an embodiment.

Fig. 7 is a side view of a coil disk of an instant heating module in an embodiment.

Fig. 8 is a front view of a coil disk of a fast thermal module in an embodiment.

Fig. 9 is an exploded view of the coil disk of the rapid thermal module in an embodiment.

Fig. 10 is a front view of a coil holder in a fast thermal module in an embodiment.

Fig. 11 is a front partial view of a coil support in a fast thermal module in an embodiment.

Fig. 12 is a partial rear view of the coil support in the rapid heating module of an embodiment.

Figure 13 is a schematic diagram of the assembly of the coil disk, the electromagnetic induction heating element and the microchannel heat exchanger in an embodiment.

Figure 14 is an exploded view of an instant thermal module in an embodiment.

Figure 15 is a schematic diagram of an orthographic projection of an electromagnetic induction heating element on a refrigerant heat exchanger in an embodiment.

Fig. 16 is a schematic view of the orthographic projection of the coil disk on the refrigerant heat exchanger in the embodiment shown in Fig. 15.

Fig. 17 is a front view of the structure of a fast heat module in another embodiment.

Fig. 18 is a structural side view of the instant thermal module in the embodiment shown in Fig. 17.

Fig. 19 is a perspective view of an outdoor unit of an air conditioner (hidden component housing) in an embodiment.

Reference signs:

Air conditioner 1000;

Air conditioner outdoor unit 100;

Machine housing 1; fan room 11; machinery room 12; net cover 13; front panel 14; middle partition plate 2; outdoor heat exchanger 3; compressor 4;

Fast thermal module 5;

Outer guard 50; fixed cover 51; fixed post 511; fixed card 512; mounting hole 513; support plate 56; fixing hole 561;

Alternating magnetic field generator 52; coil bracket 521; magnetic strip fixing groove 5211; wire groove 5212; wire crimping hook 5213; heat sink 5214; wire crimping protrusion 5215; calendering protrusion 5216; foolproof block 5217; fixing ear 5218; Bracket fixing hole 5219; wire body 522; terminal 5221; magnetic strip 523; pressure sheet 524; support leg 525;

Electromagnetic induction heating element 53; heating element through hole 531; heating element avoiding hole 532; heating element fastener 533;

Refrigerant heat exchanger 54; microchannel heat exchanger 540; header 541; inlet and outlet pipe 542; microchannel substrate 543; heat exchanger threaded hole 545; heat exchanger via 546; heat exchanger fastener 547;

Thermal insulation 55; first thermal insulation 551; second thermal insulation 552;

detailed description

The embodiments of the present application are described in detail below. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals indicate the same or similar elements or elements with the same or similar functions. The embodiments described below with reference to the drawings are exemplary, and are only used to explain the present application, and cannot be understood as a limitation to the present application.

The quick heating module 5 according to the embodiment of the present application will be described below with reference to the drawings. The quick heating module 5 is used in a refrigerant circulation system, such as an air conditioner, a water heater, and the like.

The rapid heating module 5 according to the embodiment of the present application, as shown in FIGS. 1 and 5, includes: a refrigerant heat exchanger 54, an electromagnetic induction heating element 53 and an alternating magnetic field generator 52. Among them, the refrigerant heat exchanger 54 defines a refrigerant passage, the electromagnetic induction heating element 53 is used to heat the refrigerant heat exchanger 54 so as to heat the refrigerant flowing in the refrigerant passage, and the alternating magnetic field generator 52 is adjacent to electromagnetic induction heating The element 53 is arranged and sends an alternating magnetic field to the electromagnetic induction heating element 53.

It is understandable that when the electromagnetic induction heating element 53 is in a changing magnetic field, an induced electromotive force is generated in the electromagnetic induction heating element 53 due to electromagnetic induction. Due to the resistance of the electromagnetic induction heating element 53 itself, current will be generated inside the electromagnetic induction heating element 53. The distribution of this current in the electromagnetic induction heating element 53 varies with the surface shape and magnetic flux distribution of the electromagnetic induction heating element 53 , The eddy current formed by the path will generate heat in the electromagnetic induction heating element 53, so that after the alternating magnetic field generator 52 generates the alternating magnetic field, the electromagnetic induction heating element 53 can heat the refrigerant heat exchanger 54 to make the refrigerant in the refrigerant channel Heat up quickly.

In this heating method, the alternating magnetic field generator 52 is energized to prompt the electromagnetic induction heating element 53 to heat, instead of concentrating the heat source at a point and then spreading out by the heat source point, there will be no heat concentration point on the refrigerant heat exchanger 54 , Can avoid electrical safety problems such as dry burning and line breakdown.

According to the instant heating module 5 of the embodiment of the present application, the electromagnetic induction heating element 53 is arranged on the refrigerant heat exchanger 54 and the alternating magnetic field generator 52 is arranged for the electromagnetic induction heating element 53, so that the electromagnetic induction heating element 53 is in the electromagnetic induction It generates heat under the action to heat the refrigerant in the refrigerant heat exchanger 54. This refrigerant heating method enables the refrigerant in the refrigeration equipment or heating equipment to be quickly heated.

In the refrigerant heating structure in the prior art, the electric heater is directly installed in the copper tube to heat the refrigerant, and the refrigerant may be connected to electricity. However, the rapid heating module 5 of the embodiment of the present application only needs to be energized to the alternating magnetic field generator 52 to generate an alternating magnetic field, and does not need to be directly energized to the refrigerant heat exchanger 54, so that electricity and refrigerant can be isolated. Moreover, because the electric heating is not directly buried in the refrigerant copper tube, there is no need to put forward higher sealing requirements for the refrigerant heat exchanger 54, which not only reduces the technological requirements and processing difficulty of the refrigerant heat exchanger 54, and further avoids electric heating and dry burning. Electrical safety issues such as line breakdown.

In the embodiment of the present application, the electromagnetic induction heating element 53 has various structural forms.

In some embodiments, as shown in FIGS. 1 to 3, the electromagnetic induction heating element 53 is a plate, and the electromagnetic induction heating element 53 is processed and then installed and fixed, so that the electromagnetic induction heating element 53 itself is easy to process and install. In some embodiments, the electromagnetic induction heating element 53 is at least partially in a strip shape and inserted between adjacent refrigerant pipes, so that the electromagnetic induction heating element 53 can be fully utilized in the heat exchange space.

Optionally, the thickness of the electromagnetic induction heating element 53 is less than or equal to 5 mm, and the thickness t of the electromagnetic induction heating element 53 satisfies the relationship: 0<t<=5mm. The electromagnetic induction heating element 53 itself is both a heating element and a heat conductor. The heat generated by the electromagnetic induction heating element 53 itself will be quickly transferred to the refrigerant passage of the refrigerant heat exchanger 54 without storing heat. The overall plate cannot be too thick. On the one hand, the excessively thick plate itself consumes too much heat, which causes the heat utilization efficiency to decrease, and the excessive thickness will increase the volume and weight of the entire rapid heating module 5.

Specifically, the electromagnetic induction heating element 53 is a component made of a magnetically conductive material. For example, the electromagnetic induction heating element 53 contains iron, nickel, iron oxide, or chromium oxide. The type of magnetically permeable material capable of generating electromagnetic induction can be any material disclosed in the prior art, which is not limited here.

More specifically, when the electromagnetic induction heating element 53 is a plate, the electromagnetic induction heating element 53 may be a single-layer plate made of a magnetically conductive material, such as an iron plate, an iron oxide plate, or a chromium oxide plate. The electromagnetic induction heating element 53 may also be a composite layer element. At least one layer of the electromagnetic induction heating element 53 is a layer of magnetic conductive material, and other layers can be set according to other requirements.

In other embodiments of the present application, the electromagnetic induction heating element 53 may also be a spray layer or a coating made of magnetically conductive materials. For example, the surface of the refrigerant heat exchanger 54 may be provided with a protective plate or a supporting plate, and the electromagnetic induction heating element 53 may be a coating sprayed on the surface of the protective plate or the supporting plate. Furthermore, the electromagnetic induction heating element 53 is a coating sprayed on the surface of the refrigerant heat exchanger 54. The electromagnetic induction heating element 53 is arranged in this way, and the selection of its position and shape is more flexible, and the spraying form can enlarge the heating surface on the refrigerant heat exchanger 54.

In another embodiment, the tube wall of the refrigerant channel is a tube of magnetic material, and the tube wall of the refrigerant channel constitutes the electromagnetic induction heating element 53. For example, the pipes for circulating the refrigerant of the refrigerant heat exchanger 54 are made of magnetically conductive materials, so that under an alternating magnetic field, the pipe wall of the refrigerant channel directly generates heat and heats the refrigerant, and the heat utilization efficiency can be further improved.

In the embodiment of the present application, the structure type of the refrigerant heat exchanger 54 is not limited. The refrigerant heat exchanger 54 can be a plate heat exchanger, etc., and even the refrigerant heat exchanger 54 can consist of only one metal tube. The cavity constitutes a refrigerant channel.

In some embodiments, as shown in Figures 1 and 5, the refrigerant heat exchanger 54 is a microchannel heat exchanger 540. The type of the microchannel heat exchanger 540 is not limited here, and the microchannel heat exchanger 540 is used here. The flow of refrigerant can lead the refrigerant flowing through into a trickle, which greatly increases the specific surface area and significantly improves the heating efficiency. In some embodiments, the microchannel heat exchanger 540 includes a header 541, and some includes a header 541 and a plurality of flat tubes.

Specifically, the electromagnetic induction heating element 53 can be arranged on the microchannel heat exchanger 540 in any of the above-mentioned manners, which is not limited here. In addition to the above method, the electromagnetic induction heating element 53 can also extend at least partly between two adjacent flat tubes, which is equivalent to the strip-shaped part of the electromagnetic induction heating element 53 mentioned above. Between adjacent refrigerant pipes. In this way, the electromagnetic induction heating element 53 is provided corresponding to the micro-channel heat exchanger 540, which has various forms and can make full use of the surface space of the micro-channel heat exchanger 540.

Specifically, there are two collecting tubes 541, the two collecting tubes 541 are arranged on opposite sides of the microchannel heat exchanger 540, and the electromagnetic induction heating element 53 is a plate and arranged on one side of the microchannel heat exchanger 540. More specifically, the inlet and outlet pipes 542 are respectively connected to the two headers 541 to flow in and out of the refrigerant.

Optionally, two headers 541 are arranged in parallel. In some examples, the micro-channel heat exchanger 540 has a variety of shapes, such as a groove shape, a square shape, etc., and the shape of the electromagnetic induction heating element 53 should be changed accordingly. For example, when the microchannel heat exchanger 540 is formed into a square tube, the electromagnetic induction heating element 53 can also be formed into a square tube. At this time, the square tube of the electromagnetic induction heating element 53 can be sleeved (inner or outer jacket) in the microchannel heat exchanger 540. On the square tube.

When the microchannel heat exchanger 540 includes flat tubes connected to the header 541, the flat tubes are arranged along the shape of the microchannel heat exchanger 540, and there may be multiple ones arranged in parallel, or one meandering arrangement.

Optionally, the overall external shape of the microchannel heat exchanger 540 is a rectangle, and the electromagnetic induction heating element 53 is a rectangular plate.

Further, as shown in FIGS. 1 and 14, the microchannel heat exchanger 540 further includes a microchannel substrate 543, the microchannel substrate 543 is located between the two collectors 541, and the electromagnetic induction heating element 53 is connected to the microchannel substrate 543. on. In this way, the quick-heating module 5 is flat as a whole, which facilitates installation in a narrow space.

In the embodiment of the present application, there are many ways to connect the electromagnetic induction heating element 53 and the refrigerant heat exchanger 54. For example, the electromagnetic induction heating element 53 is connected to the refrigerant heat exchanger 54 through fasteners, which can ensure a tight connection between the two. For example, the electromagnetic induction heating element 53 and the refrigerant heat exchanger 54 are provided with solder or solder fins and connected by welding, which can ensure a tight and reliable connection between the two.

In some embodiments, a thermal conductive agent layer is provided between the electromagnetic induction heating element 53 and the refrigerant heat exchanger 54 to improve heat transfer efficiency.

In some specific embodiments, the following three methods are provided.

Method 1: The electromagnetic induction heating element 53 is connected to the refrigerant heat exchanger 54 through a plurality of heating element fasteners 533.

Method 2: Coat the contact surface between the electromagnetic induction heating element 53 and the refrigerant heat exchanger 54 with a thermal conductive agent (thermal conductive silicone grease, thermal conductive sheet, etc.), and then connect the heating element fastener 533.

Method 3: The contact surface of the electromagnetic induction heating element 53 and the refrigerant heat exchanger 54 is in close contact by welding and fusion with filler solder, and the solder is evenly coated on the entire contact surface.

Optionally, as shown in Figures 1 to 3, the microchannel heat exchanger 540 is provided with multiple heat exchanger threaded holes 545, and the electromagnetic induction heating element 53 is correspondingly provided with heating element through holes 531, and the electromagnetic induction heating element 53 through a plurality of heating element fasteners 533 through the heating element through hole 531 and then connected to the heat exchanger threaded hole 545, thereby connecting the electromagnetic induction heating element 53 and the refrigerant heat exchanger 54 as a whole.

Further, the microchannel heat exchanger 540 is provided with a plurality of heat exchanger through holes 546, and the microchannel heat exchanger 540 is connected to the supporting structure after passing through the heat exchanger through holes 546 through a plurality of heat exchanger fasteners 547 in. Optionally, the electromagnetic induction heating element 53 is provided with heating element escape holes 532 corresponding to a plurality of heat exchanger fasteners 547 to avoid affecting the installation of the heat exchanger fasteners 547.

In some embodiments, as shown in FIGS. 4, 5 and 14, the electromagnetic induction heating element 53 is arranged between the refrigerant heat exchanger 54 and the alternating magnetic field generator 52, and the electromagnetic induction heating element 53 exchanges heat with the refrigerant The device 54 is in direct contact. In this way, the range of the alternating magnetic field can be reduced and unnecessary energy consumption can be reduced.

Optionally, as shown in Figure 15, the projected area of the electromagnetic induction heating element 53 on the refrigerant heat exchanger 54 is greater than half of the area of the refrigerant heat exchanger 54, which effectively ensures that the heat absorbed by the electromagnetic induction heating element 53 is transferred to the refrigerant exchange. Heater 54.

In some embodiments, as shown in FIGS. 5 and 14, a heat insulating member 55 is provided between the alternating magnetic field generator 52 and the electromagnetic induction heating element 53, so as to prevent the heat generated by the electromagnetic induction heating element 53 from changing to The magnetic field generator 52 radiates, so as to prevent the alternating magnetic field generator 52 from fusing, catching fire or disconnecting after being heated. In addition, a heat insulating member 55 is arranged between the alternating magnetic field generator 52 and the electromagnetic induction heating element 53 to reduce heat loss and improve the efficiency of heating the refrigerant.

Optionally, a heat insulating member 55 is also provided on the outside of the refrigerant heat exchanger 54 to reduce heat loss.

Specifically, as shown in FIG. 14, the heat insulating member 55 includes a first heat insulating member 551 and a second heat insulating member 552. The first heat insulating member 551 is provided between the refrigerant heat exchanger 54 and the supporting structure, and the second insulating member 551 The heating element 552 is arranged between the alternating magnetic field generator 52 and the electromagnetic induction heating element 53.

In the specific examples shown in FIG. 5 and FIG. 14, the rapid thermal module 5 includes an outer protective member 50 that protects the outer side of the microchannel heat exchanger 540, the electromagnetic induction heating element 53 and the alternating magnetic field generator 52. Specifically, the outer guard 50 includes a fixed cover 51 and a supporting plate 56, the microchannel heat exchanger 540 is connected to the supporting plate 56, the fixed cover 51 is connected to the supporting plate 56 and the outer cover is on the microchannel heat exchanger 540.

A second heat insulation element 552 is provided between the electromagnetic induction heating element 53 and the alternating magnetic field generator 52 to prevent the high temperature electromagnetic induction heating element 53 from generating heat radiation to the alternating magnetic field generator 52, and the second heat insulation element 552 interacts with the magnetic induction The heating element 53 is in close contact to prevent the heat loss of the electromagnetic induction heating element 53; a first heat insulation element 551 is arranged between the microchannel substrate 543 of the microchannel heat exchanger 540 and the supporting plate 56 to prevent the microchannel heat exchanger 540 from contacting and supporting heat The plate 56 is transferred to the metal object, causing heat loss.

As shown in FIG. 14, the microchannel heat exchanger 540 is fixed to the support plate 56 by the heat exchanger fastener 547 through the heat exchanger through hole 546; the alternating magnetic field generator 52 is fixed to the fixed cover 51, and the fixed cover 51 is fixed to the support plate 56. So far, the relative positions of the electromagnetic induction heating element 53, the microchannel heat exchanger 540, and the alternating magnetic field generator 52 are relatively fixed.

In the embodiment of the present application, the structure of the alternating magnetic field generator 52 can adopt various methods known in the prior art. For example, in some examples, a mechanical structure is used to drive the permanent magnet to rotate, so that the permanent magnet generates an alternating magnetic field on the electromagnetic induction heating element 53. For another example, in some examples, a coil is used instead of the permanent magnet to rotate, so that the magnetic field generated by the coil transforms the alternating magnetic field on the electromagnetic induction heating element 53. In other examples, the coil is combined with a permanent magnet to increase the strength and stability of the alternating magnetic field.

In some specific embodiments, as shown in FIG. 5, FIG. 6, and FIG. 13, the alternating magnetic field generator 52 is a coil disk, and the principle of generating an alternating magnetic field by the coil disk has been in the prior art, and will not be repeated here. The alternating current generated by the coil disk can cause the electromagnetic induction heating element 53 to heat, which not only has high magnetic density, but also the alternating magnetic field is very stable. The refrigerant heat exchanger 54 can adopt any heat exchanger structure known in the prior art. The arrangement of the coil disk in most of the solutions in this application will not affect the structure of the refrigerant heat exchanger 54, that is, manufacturers can directly purchase existing ones on the market. In the known heat exchanger, the quick-heating module 5 can be assembled by installing the coil disk and the electromagnetic induction heating element 53 on the heat exchanger.

Specifically, the coil disk is arranged on one side of the refrigerant heat exchanger 54 and the coil disk is kept fixed when the fast heating module 5 is working, so that the fast heating module 5 is very simple to assemble.

In some embodiments, to ensure that the intensity of the magnetic field generated at the electromagnetic induction heating element 53 is sufficiently large after the coil disc is energized, the distance between the coil disc and the electromagnetic induction heating element 53 is 1-20 mm. It is understandable that if the coil disk is too close to the electromagnetic induction heating element 53, the heat generated by the electromagnetic induction heating element 53 is likely to be radiated to the coil disk, causing certain hidden dangers to the safety of the coil disk. If the coil disk is too far away from the electromagnetic induction heating element 53, the capacity will leak magnetic and the electromagnetic conversion utilization will be low.

In some embodiments, as shown in FIG. 16, the overlapping area of the orthographic projection of the coil disk and the electromagnetic induction heating element 53 on the refrigerant heat exchanger 54 at least accounts for the orthographic projection of the electromagnetic induction heating element 53 on the refrigerant heat exchanger 54 Half the area. As shown in Figs. 15 and 16, at least half of the peripheral area S2 of the electromagnetic induction heating element 53 falls within the orthographic projection area S1 of the outer periphery of the coil disk. Here, the extension surface of the refrigerant heat exchanger 54 is taken as the reference surface, and the above-mentioned orthographic projection all refer to the orthographic projection on the reference surface.

It can be understood that, under the premise of generating the same magnetic flux density, if the overlap area of the coil disk and the electromagnetic induction heating element 53 is smaller, the coil disk needs to be energized. Moreover, since the electromagnetic induction heating element 53 is used to transfer heat to the refrigerant heat exchanger 54, the extension surface of the refrigerant heat exchanger 54 is used as a reference surface to propose the overlapping area of the coil disk and the orthographic projection of the electromagnetic induction heating element 53. No less than half of the projection area of the electromagnetic induction heating element 53 can effectively reduce the power consumption of the coil disk, improve energy utilization, and reduce magnetic leakage.

In some embodiments, as shown in FIGS. 6-9, the coil disk includes: a coil support 521 and a wire body 522, the wire body 522 is wound on the coil support 521, and the wire body 522 has terminals 5221 at both ends. Here, the wire body 522 is wound on the coil support 521 to facilitate the winding and forming of the wire body 522 and also facilitate the installation and positioning of the coil disk in the quick-heating module 5.

Of course, in other embodiments of the present application, the coil disk may also have other structural forms. For example, when the coil support 521 may not be included in the coil disk, the wire body 522 is directly wound on the electromagnetic induction heating element 53, even in some limited space. In this case, the lead body 522 can be directly wound on the refrigerant heat exchanger 54.

In some specific embodiments, the wire body 522 is wound around the coil holder 521 in a certain shape for multiple times, and then the wire body 522 is fixed on the coil holder 521 by means of clamping, binding, and molding to avoid loose wires.

Optionally, the lead body 522 adopts enameled wire, which has a lower cost. The wire body 522 is wound on the coil support 521 into a ring shape or a waist shape, etc., which is the simplest to wire.

In a specific example, as shown in FIGS. 8-10, the coil support 521 is generally rectangular, the wire body 522 is wound into a flat toroidal coil, and the overall shape of the coil disk is a rectangular plate, which is placed on the electromagnetic induction heating element 53 The side of φ is not only large overlapped with the projection of the electromagnetic induction heating element 53, but also does not occupy too much space.

Optionally, as shown in Figures 9-11, the coil support 521 is provided with a wire slot 5212, and the wire body 522 is clamped in the wire slot 5212, so that not only the wire body 522 can be fixed, but the wire body 522 can be restricted and scattered. In addition, the wire slot 5212 is used to constrain the wire body 522, and the appearance of the coil disk is more regular and beautiful, and it is not easy to pull or break the wire during transportation and assembly. Specifically, the wire groove 5212 and the wire body 522 finally have the same shape to be wound, and may be an annular groove or a waist groove.

Optionally, the coil support 521 is provided with a crimping hook 5213 that clamps the terminal 5221, so that the position of the terminal 5221 of the wire body 522 is fixed, which is convenient for wiring.

In some specific embodiments, as shown in FIG. 9, the coil disk includes a magnetic strip 523, and the magnetic strip 523 is provided on the coil support 521. The arrangement of the magnetic strip 523 can change the shape of the electromagnetic field around the coil disk, so that more energy is concentrated on the side where the electromagnetic induction heating element 53 is arranged, thereby improving energy utilization efficiency.

Further, the extension line of the magnetic strip 523 and the tangent line of the lead body 522 at the intersection with the extension line are perpendicular. According to the characteristics of the magnetic field of the coil, the arrangement of the magnetic stripe 523 in this way is beneficial to expand the influence range of the magnetic stripe 523, and further promotes more energy concentration on the side where the electromagnetic induction heating element 53 is arranged.

Optionally, as shown in FIGS. 9 and 12, the coil holder 521 is provided with a magnetic strip fixing groove 5211 for limiting the magnetic strip 523, which facilitates the assembly and positioning of the magnetic strip 523.

In some specific embodiments, as shown in FIGS. 8 and 9, the coil disk includes: a pressure-resistant sheet 524, which is provided on the coil support 521 and is located on the side of the wire body 522 facing the electromagnetic induction heating element 53 . The arrangement of the pressure-resistant piece 524 further constrains the lead body 522 and makes the entire coil disk flatter. Optionally, the pressure-resistant sheet 524 is a mica sheet or other similar material sheets.

In the embodiment of the present application, in order to ensure the safety of the coil disk and reduce the amount of magnetic leakage, it is proposed that the optimal distance between the coil disk and the electromagnetic induction heating element 53 is 1-20 mm. There are many ways to maintain the distance. The distance between the coil disk and the electromagnetic induction heating element 53 can be directly connected to the spacer block, or the distance can be maintained in an indirect manner. Specifically, the refrigerant heat exchanger 54 and the coil disk are both connected to the outer protective member 50 to maintain the distance between the coil disk and the electromagnetic induction heating element 53.

The following describes the specific structure of the rapid thermal module 5 in a specific embodiment and the manner of maintaining the above-mentioned spacing with reference to FIGS. 6-18.

As shown in FIG. 9, the coil disk includes: a coil support 521, a wire body 522, a magnetic strip 523 and a pressure-resistant piece 524.

10-12, the coil support 521 has a front and a back, Figure 11 shows the front of the coil support 521, Figure 12 shows the back of the coil support 521, the wire body 522 wound around the coil support 521 On the front.

Specifically, as shown in FIGS. 10 and 11, the coil support 521 is a non-metallic support having a waist shape or an oval shape. The front of the coil support 521 is provided with a wire slot 5212, the wire slot 5212 is a racetrack shape, the wire slot 5212 is multi-turn, and is arranged from the inside to the outer layer, and each turn of the wire slot 5212 is a waist-shaped wire slot or an ellipse. The wire body 522 is arranged along the wire slot 5212, so the wire body 522 forms a coil with multiple turns.

Specifically, as shown in FIG. 10 and FIG. 11, the coil support 521 is provided with a heat dissipation port 5214, a part of the heat dissipation port 5214 overlaps the wire slot 5212, and the setting of the heat dissipation port 5214 can prevent the wire body 522 from overheating. Specifically, the heat dissipation port 5214 is provided on the front surface of the coil support 521 and penetrates the coil support 521 in the thickness direction. Advantageously, the heat dissipation openings 5214 are multiple arranged along the extension direction of the wire groove 5212, and each wire groove 5212 is connected to a plurality of wire grooves 5212 provided on the inner and outer layers.

More specifically, as shown in FIG. 11, the coil support 521 is provided with a wire pressing protrusion 5215 extending above the wire groove 5212, and the wire pressing protrusion 5215 is pressed on the wire body 522.

In addition, as shown in FIG. 12, a magnetic strip fixing groove 5211 is provided on the back of the coil support 521, and the magnetic strip 523 is fitted in the magnetic strip fixing groove 5211. Wherein, the coil support 521 is provided with a rolling protrusion 5216 extending above the magnetic strip fixing groove 5211.

Specifically, there are multiple magnetic strip fixing grooves 5211, some magnetic strip fixing grooves 5211 are arranged along the length direction of the coil support 521, and some magnetic strip fixing grooves 5211 are arranged along the width direction of the coil support 521.

More specifically, as shown in FIG. 10, a foolproof block 5217 is provided on one side of the coil support 521 to prevent reverse installation.

Specifically, the coil holder 521 is provided with a crimping hook 5213 for crimping the terminal 5221 of the wire body 522. Among them, as shown in FIG. 9, there are two crimping hooks 5213.

Specifically, as shown in FIG. 10, the four corners of the coil bracket 521 are provided with fixing ears 5218, and each fixing ear 5218 is provided with a bracket fixing hole 5219.

As shown in Figure 9, the wire body 522 must be adapted to the wire groove 5212 to be formed into a waist or elliptical winding shape, and is limited and fixed by the crimping protrusions 5215 formed by several calendering processes on the front of the coil support 521 . The terminal 5221 of the wire body 522 is clamped and pressed by the crimping hook 5213.

A plurality of magnetic strips 523 are arranged in the magnetic strip fixing groove 5211, and are limited and fixed by the rolling protrusions 5216 formed by a plurality of rolling processes on the back of the coil support 521. The magnetic strip 523 is bonded and fixed on the coil support 521.

The pressure-resistant sheet 524 is a mica sheet with a certain thickness, the shape of which is adapted to the coil support 521, is also waist-shaped or oval, and is pasted on the front of the coil support 521.

As shown in FIG. 13 and FIG. 14, the rapid heating module 5 includes a supporting plate 56, a refrigerant heat exchanger 54, a refrigerant heat exchanger 54, a coil disk and a fixed cover 5 arranged in sequence. The heat insulator 55 includes a first heat insulator 551 and a second heat insulator 552, the first heat insulator 551 is arranged between the support plate 56 and the refrigerant heat exchanger 54, and the second heat insulator 552 is arranged on the refrigerant heat exchange器54, between the coil disk.

The inter-disk distance between the coil disk and the plate-shaped refrigerant heat exchanger 54 is h=1-20mm, and the implementation is as follows:

Manner 1: As shown in FIG. 14, the coil bracket 521 is fixed on the four fixing posts 511 of the fixing cover 51 through the bracket fixing holes 5219 at the four corners, and the fixing cover 51 is buckled into the fixing holes 561 of the supporting plate 56 through fixing clips 512. Then, externally fastened screws are sequentially threaded through the mounting holes 513 and connected to the mounting threaded holes 562 of the support plate 56.

The refrigerant heat exchanger 54 is directly screwed on the support plate 56, so that the distance between the refrigerant heat exchanger 54, the electromagnetic induction heating element 53, and the coil disk is fixed, so that the distance between the coil disk and the plate-shaped refrigerant heat exchanger 54 is fixed. The distance between the discs is h=1-20mm.

Method 2: As shown in Figure 17 and Figure 18, legs 525 are provided on both sides of the coil disk. After the electromagnetic induction heating element 53 is fastened to the refrigerant heat exchanger 54, the coil disk is fastened to the refrigerant heat exchanger 54 through the legs 525 , So that the inter-disk distance h between the coil disk and the plate-shaped refrigerant heat exchanger 54 = 1-20 mm.

Hereinafter, an air conditioner 1000 according to an embodiment of the present application will be described with reference to FIGS. 5 and 19.

The air conditioner 1000 according to the embodiment of the present application, as shown in FIG. 19, includes: a compressor 4 and an instant heat module. The instant heat module is the instant heat module 5 according to the above embodiment of the present application. Here, the structure of the instant heat module 5 No longer describe. The refrigerant passage of the refrigerant heat exchanger 54 is connected to the exhaust port of the compressor 4, that is, the rapid heating module 5 is used to rapidly heat the exhaust gas of the compressor 4.

Other components and operations of the air conditioner 1000 according to the embodiment of the present application, such as the compressor 4 and outdoor heat exchanger, etc., are known to those of ordinary skill in the art, and will not be described in detail here.

The exhaust side of the compressor 4 is provided with a rapid heating module 5, and the heat generated by the electromagnetic induction heating element 53 is transferred to the microchannel heat exchanger 540 through an alternating magnetic field generator 52. The refrigerant and the microchannel heat exchanger 540 The inner wall of the refrigerant channel circulates and contacts for heat exchange and heat transfer to quickly obtain heat, thereby rapidly increasing the temperature of the refrigerant.

Specifically, the heating time of the electromagnetic induction heating element 53 is set for a period of time when the heating is started, and the heating function of the electromagnetic induction heating element 53 is cut off after the heating is stabilized, so that the air conditioner 1000 can start heating quickly in a low temperature environment. The user's demand for rapid heating at low temperature.

In addition, when the air conditioner outdoor unit 100 needs to operate in the defrost mode, the quick heat module 5 can be connected between the compressor 4 and the outdoor heat exchanger 3, which can make the temperature of the refrigerant discharged from the compressor higher The defrosting effect of the outdoor unit 100 is better.

This method not only achieves the function of heating the refrigerant, uniform heating, and simple processing technology, but also can achieve complete isolation of electricity and refrigerant, so as to realize rapid heating when starting up in a low temperature environment.

According to the air conditioner 1000 of the embodiment of the present application, the rapid heating module 5 is provided on the discharge side of the compressor 4, so that the exhaust gas of the compressor 4 is rapidly heated up, which can realize the requirement of the air conditioner 1000 to start rapid heating in winter. By arranging an electromagnetic induction heating element 53 on the refrigerant heat exchanger 54 and an alternating magnetic field generator 52 for the electromagnetic induction heating element 53, the electromagnetic induction heating element 53 is heated by electromagnetic induction to heat the inside of the refrigerant heat exchanger 54 The refrigerant can isolate the electricity from the refrigerant, which not only reduces the technological requirements and processing difficulty of the refrigerant heat exchanger 54, but also avoids electrical safety issues such as dry burning of electric heating and line breakdown.

In a specific embodiment, the air conditioner 1000 is a split type air conditioner, and the air conditioner 1000 includes an indoor unit and an air conditioner outdoor unit 100, and the quick-heating module 5 is provided in the air conditioner outdoor unit 100. As shown in FIG. 19, an outdoor unit 100 of an air conditioner includes a casing 1, a central partition 2, an outdoor heat exchanger 3, an outdoor fan, a compressor 4, and a fast heat module 5.

An installation cavity is formed in the casing 1, and the middle partition 2 is arranged in the installation cavity and divides the installation cavity into a fan chamber 11 on the left and a mechanical chamber 12 on the right. A front panel 14 is provided on the front side of the installation cavity, an air outlet is formed on the front panel 14 corresponding to the fan chamber 11, and a net cover 13 is covered on the air outlet. An outdoor fan and an outdoor heat exchanger 3 are installed in the fan room 11, and an air inlet is formed on the rear side of the outdoor heat exchanger 3. A compressor 4 is installed in the lower part of the machinery room 12, and an electric control component 7 is installed in the upper part. The electric control component 7 controls the opening and closing of electrical components such as outdoor fans and compressors.

In the description of this application, it should be understood that the terms "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", " The orientation or positional relationship indicated by “top”, “bottom”, “inner”, and “outer” is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the application and simplifying the description, rather than indicating or implying The device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation of the present application. In addition, the features defined with "first" and "second" may explicitly or implicitly include one or more of these features. In the description of this application, unless otherwise specified, "plurality" means two or more.

In the description of this application, it should be noted that the terms "installation", "connection", and "connection" should be interpreted broadly unless otherwise clearly specified and limited. For example, it can be a fixed connection or a detachable connection. Connected or integrally connected; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the internal communication between two components. For those of ordinary skill in the art, the specific meanings of the above-mentioned terms in this application can be understood under specific circumstances.

The middle partition 2 here has a certain strength, and it is universal in the outdoor unit 100 of the air conditioner. The shape and size of the middle partition 2 are not limited, and can be based on the installation space of the outdoor unit 100 and the required installation parts in the cavity. Make adjustments. The heating cycle components and heating principles of the air conditioner, such as the outdoor heat exchanger 3, the compressor 4, the indoor heat exchanger, and the throttling element, belong to the prior art well-known in the art, and will not be repeated here.

Wherein, the electric control component 7 and the fast heat module 5 are both installed on the central partition plate 2, and the electric control component 7 is located above the fast heat module 5, and the fast heat module 5 is located above the compressor 4. It should be noted here that the support plate 6 can be installed on either side of the central partition 2, that is, the quick-heating module 5 can be in the fan room 11 or in the machine room 12, and a suitable arrangement position can be selected according to needs.

Among them, the rapid heating module 5 includes an alternating magnetic field generator 52, an electromagnetic induction heating element 53 and a refrigerant heat exchanger 54, and the rapid heating module 5 also includes an outer guard 50 that protects the alternating magnetic field generator 52, The electromagnetic induction heating element 53 and the outside of the refrigerant heat exchanger 54.

Specifically, the refrigerant heat exchanger 54 can be directly fixedly connected to the central partition plate 2, and the outer guard 50 can only include a fixed cover 51, which covers the alternating magnetic field generator 52, the electromagnetic induction heating element 53 and the refrigerant exchange Heater 54 on. Or the outer guard 50 includes a fixed cover 51 and a support plate 56, the refrigerant heat exchanger 54 is directly fixedly connected to the support plate 5, the fixed cover 51 is connected to the support plate 5, and the cover is covered by the alternating magnetic field generator 52, electromagnetic induction The heating element 53 and the refrigerant heat exchanger 54 are installed.

In the description of this specification, the description with reference to the terms "embodiment", "example", etc. means that the specific feature, structure, material or characteristic described in conjunction with the embodiment or example is included in at least one embodiment or example of the present application . In this specification, the schematic representation of the above-mentioned terms does not necessarily refer to the same embodiment or example. Moreover, the described specific features, structures, materials or characteristics may be combined in any one or more embodiments or examples in a suitable manner.

Although the embodiments of the present application have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions, and modifications can be made to these embodiments without departing from the principle and purpose of the present application. The scope of the application is defined by the claims and their equivalents.

Claims (22)

1. A fast thermal module, characterized in that it comprises:

   A refrigerant heat exchanger, where a refrigerant passage is defined in the refrigerant heat exchanger;

   An electromagnetic induction heating element, the electromagnetic induction heating element is used to heat the refrigerant heat exchanger;

   An alternating magnetic field generator, which is arranged adjacent to the electromagnetic induction heating element and emits an alternating magnetic field to the electromagnetic induction heating element.
2. The rapid heating module according to claim 1, wherein the electromagnetic induction heating element is provided between the refrigerant heat exchanger and the alternating magnetic field generator, and the electromagnetic induction heating element is connected to the alternating magnetic field generator. The refrigerant heat exchanger is in direct contact.
3. The instant thermal module according to claim 1 or 2, wherein the refrigerant heat exchanger is a microchannel heat exchanger.
4. The instant thermal module according to any one of claims 1-3, wherein the electromagnetic induction heating element is a plate element.
5. 4. The rapid thermal module according to claim 4, wherein the thickness of the electromagnetic induction heating element is less than or equal to 5 mm.
6. The instant heating module according to any one of claims 1 to 5, wherein the electromagnetic induction heating element is connected to the refrigerant heat exchanger by a fastener.
7. The rapid heating module according to any one of claims 1 to 6, wherein solder or solder fins are provided between the electromagnetic induction heating element and the refrigerant heat exchanger and are connected by welding.
8. 7. The instant thermal module according to any one of claims 1-7, wherein a thermal conductive agent layer is provided between the electromagnetic induction heating element and the refrigerant heat exchanger.
9. The rapid thermal module according to any one of claims 1-8, wherein a heat insulating element is provided between the alternating magnetic field generator and the electromagnetic induction heating element.
10. The rapid thermal module according to any one of claims 1-9, wherein the alternating magnetic field generator is a coil disk.
11. The rapid thermal module according to claim 10, wherein the distance between the coil disk and the electromagnetic induction heating element is 1-20 mm.
12. The rapid-heating module according to claim 10 or 11, wherein the overlapping area of the orthographic projection of the coil disk and the electromagnetic induction heating element on the refrigerant heat exchanger at least occupies Half of the projected area on the refrigerant heat exchanger.
13. The instant thermal module according to any one of claims 10-12, wherein the coil disk comprises:

    Coil support

    A wire body, the wire body is wound on the coil support, and both ends of the wire body are terminals.
14. The fast thermal module according to claim 13, wherein the coil disk further comprises a magnetic strip, and the magnetic strip is provided on the coil support.
15. The rapid thermal module according to claim 14, wherein the extension line of the magnetic stripe and the tangent line of the conductor body at the intersection with the extension line are perpendicular.
16. The rapid thermal module according to claim 14, wherein the coil bracket is provided with a magnetic strip fixing slot for limiting the magnetic strip.
17. The rapid thermal module according to claim 13, wherein a wire slot is provided on the coil support, and the wire body is clamped in the wire slot.
18. The instant thermal module according to claim 13, wherein the coil bracket is provided with a wire crimping hook for clamping the terminal.
19. The instant thermal module according to claim 13, wherein the coil support is substantially rectangular, and the wire body is wound into a flat toroidal coil.
20. The rapid-heating module according to claim 13, wherein the coil disk comprises: a pressure-resistant sheet, and the pressure-resistant sheet is provided on the coil support and located in the direction of the conductor body toward the electromagnetic induction heating One side of the piece.
21. The rapid heating module according to claim 11, wherein the electromagnetic induction heating element is provided on the refrigerant heat exchanger, and the rapid heating module further comprises: an outer protective member, the refrigerant heat exchanger and The coil disks are all connected to the outer protective member to maintain the distance between the coil disk and the electromagnetic induction heating element.
22. An air conditioner, comprising: a compressor and an instant heat module, the instant heat module being the instant heat module according to any one of claims 1-21, and the refrigerant heat exchanger The refrigerant channel is connected to the exhaust port of the compressor.

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