CN221000268U

CN221000268U - Heating system and drying equipment

Info

Publication number: CN221000268U
Application number: CN202322442464.5U
Authority: CN
Inventors: 耿斌
Original assignee: Beijing Xiaomi Mobile Software Co Ltd
Current assignee: Beijing Xiaomi Mobile Software Co Ltd
Priority date: 2023-09-08
Filing date: 2023-09-08
Publication date: 2024-05-24
Anticipated expiration: 2033-09-08

Abstract

The application discloses a heating system and drying equipment, wherein the heating system comprises a channel piece, an electromagnetic induction piece and a heating piece; the electromagnetic induction piece is arranged on the outer side of the channel piece in a surrounding mode; the heating element is positioned in the inner cavity of the channel element and is configured to generate electromagnetic vortex under the action of the magnetic field of the electromagnetic induction element so as to heat the heat-conducting medium entering the inner cavity of the channel element. The heating system and the drying equipment disclosed by the application have the advantages of high heating efficiency and drying efficiency and accurate and reliable temperature control.

Description

Heating system and drying equipment

Technical Field

The application relates to the technical field of clothes care, in particular to a heating system and drying equipment.

Background

The drying apparatus, such as a clothes dryer, etc., can perform a drying process on the laundry. The drying principle of the dryer is that the clothes are heated by high-temperature air flow and the evaporated moisture on the clothes is taken away, so that the clothes are dried quickly.

The dryer heats the cool air by a heating system to form a high temperature air flow. In the related art, a resistive heater, such as a PTC (Pos it ive Temperature Coefficient ) heater, is generally used for a heating system. However, the resistive heater has the defects of low heating efficiency, thermal hysteresis, difficult accurate temperature control and the like.

Disclosure of utility model

In view of the above, the application provides a heating system and a drying device, which have high heating efficiency and accurate and reliable temperature control.

The application adopts the following technical scheme:

In one aspect, the embodiment of the application provides a heating system, which comprises a channel piece, an electromagnetic induction piece and a heating piece;

The electromagnetic induction piece is arranged on the outer side of the channel piece in a surrounding mode;

The heating element is positioned in the inner cavity of the channel element and is configured to generate electromagnetic vortex under the action of the magnetic field of the electromagnetic induction element so as to heat the heat-conducting medium entering the inner cavity of the channel element.

Optionally, the electromagnetic induction member is an electromagnetic induction coil, and the electromagnetic induction coil is wound on the outer wall of the channel member.

Optionally, the heating system further comprises a bracket;

The bracket is positioned in the inner cavity of the channel piece and is connected with the inner wall of the channel piece; or the bracket is positioned at the end part of the channel piece and is connected with the end wall of the channel piece;

the heating element is arranged in the inner cavity of the channel element through the bracket.

Optionally, the support is a non-magnetic support.

Optionally, the heating element comprises a magnetically conductive heating tube, and an axis of the magnetically conductive heating tube is parallel to or coincides with an axis of the channel element.

Optionally, the number of the magnetically-conductive heating pipes is more than one, the pipe diameters of the more than one magnetically-conductive heating pipes are different from each other, and the more than one magnetically-conductive heating pipes are coaxially arranged with the channel member.

Optionally, the channel member is a non-magnetic conductive drying tunnel.

Optionally, the heating system further comprises an electromagnetic shielding member, and the electromagnetic shielding member is arranged on the outer side of the electromagnetic induction member in a surrounding manner and is used for shielding electromagnetic radiation generated by the electromagnetic induction member.

In another aspect, an embodiment of the present application provides a drying apparatus, including the heating system described above.

Optionally, the drying device further comprises a fan, a barrel body and an exhaust system;

The fan is arranged at the inlet end of the channel piece of the heating system and is used for introducing a heat-conducting medium into the channel piece;

The barrel body is communicated with the outlet end of the channel piece;

the exhaust system is communicated with one end of the barrel body far away from the channel piece and is used for exhausting the heat conducting medium.

According to the heating system provided by the embodiment of the application, the electromagnetic induction piece is arranged on the outer side of the channel piece in a surrounding manner, and the heating piece is arranged in the inner cavity of the channel piece, so that after the electromagnetic induction piece is electrified, electromagnetic vortex flow is generated in the heating piece to generate heat, and a heat conducting medium flowing through the inner cavity of the channel piece is heated. Compared with a resistance heater in the related art, the heating power of the heating system provided by the embodiment of the application can be flexibly adjusted by adjusting the current, the heating temperature can be precisely controlled, and the heating system has high heating efficiency and good energy-saving effect.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required for the description of the embodiments will be briefly described below, and it is apparent that the drawings in the following description are only some embodiments of the present application, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic cross-sectional view of a heating system according to an embodiment of the present application;

fig. 2 is a schematic longitudinal section of a heating system according to an embodiment of the present application;

FIG. 3 is a schematic view of a longitudinal section of another heating system according to an embodiment of the present application;

FIG. 4 is a schematic cross-sectional view of another heating system provided in accordance with an embodiment of the present application;

Fig. 5 is a schematic structural view of a drying apparatus according to an embodiment of the present application.

Reference numerals:

100. A heating system; 110. a channel member; 111. an inlet end; 112. an outlet end; 113. an inner wall; 114. an end wall; 120. an electromagnetic induction member; 130. a heating member; 131. a magnetically conductive heating tube; 140. a bracket; 150. an electromagnetic shield;

200. a blower; 300. a tub body; 400. an exhaust system.

Detailed Description

The following description of the embodiments of the present application will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are some, but not all embodiments of the application. All other embodiments, which can be made by those skilled in the art based on the embodiments of the application without making any inventive effort, are intended to be within the scope of the application.

In addition, the technical features of the different embodiments of the present application described below may be combined with each other as long as they do not collide with each other.

Embodiments of the present application provide a heating system 100, as shown in fig. 1, the heating system 100 may include a channel member 110, an electromagnetic induction member 120, and a heating member 130; the electromagnetic induction member 120 is disposed around the outside of the channel member 110, and the heating member 130 is disposed in the inner cavity of the channel member 110 and configured to generate electromagnetic eddy current under the magnetic field of the electromagnetic induction member 120, so as to heat the heat-conducting medium entering the inner cavity of the channel member 110.

The heating system 100 provided in the embodiment of the present application heats the heat-conducting medium located in the inner cavity of the channel member 110 based on the electromagnetic heating principle. Specifically, the electromagnetic induction member 120 in the heating system 100 may generate an alternating magnetic field upon being energized; the heating element 130 is located in the alternating magnetic field and can generate electromagnetic eddy current under the action of the magnetic field, so that carriers perform high-speed irregular motion and generate heat by friction, and after the heat is released, the carriers can be absorbed by a heat conducting medium located near the heating element 130, thereby achieving the heating effect on the heat conducting medium.

In embodiments of the present application, the heat transfer medium may be gaseous, liquid or solid. Illustratively, when the heating system 100 is applied to a drying appliance, the thermally conductive medium is typically air; when the heating system 100 is applied to a heat exchanger, the heat transfer medium is typically air or water.

In summary, in the heating system 100 provided by the embodiment of the application, the electromagnetic induction member 120 is disposed around the outer side of the channel member 110, and the heating member 130 is disposed in the inner cavity of the channel member 110, so that after the electromagnetic induction member 120 is energized, electromagnetic eddy current is generated in the heating member 130 to generate heat, and the heat conducting medium flowing through the inner cavity of the channel member 110 is heated. Compared with the resistance heater in the related art, the heating power of the heating system 100 provided by the embodiment of the application can be flexibly adjusted by adjusting the current, the accurate control of the heating temperature can be realized, and the heating system 100 has high heating efficiency and good energy-saving effect.

When the heating system 100 provided in the embodiment of the present application is applied to a drying apparatus, the channel member 110 may be a drying tunnel, and the heat-conducting medium may be air. In some embodiments, channel member 110 may be a non-magnetically permeable drying tunnel.

A non-magnetically permeable drying tunnel refers to a drying tunnel made of a non-magnetically permeable material that does not have magnetic permeability and therefore does not generate heat although positioned in the alternating magnetic field provided by electromagnetic induction 120. Alternatively, the non-magnetically permeable material may be a non-ferromagnetic material, such as PPS (polyphenylene sulfide) or another high temperature resistant engineering plastic.

In some embodiments of the present application, the electromagnetic induction member 120 may include an electromagnetic induction coil wound on an outer wall of the channel member 110.

The channel member 110 may serve as an installation skeleton of the electromagnetic induction coil, improving the structural compactness of the heating system 100 and reducing the volume and manufacturing cost of the heating system 100 by directly winding the electromagnetic induction coil on the outer wall.

Optionally, the electromagnetic induction element 120 may further include a power device and a control device, wherein the electromagnetic induction coil is electrically connected to the power device, and the control device is electrically connected to the power device. The control device can control the power supply device to supply power to the electromagnetic induction coil so as to enable the electromagnetic induction coil to be electrified and generate electromagnetic eddy current to heat the heat-conducting medium.

Alternatively, the number of the electromagnetic induction coils is plural, each coil is wound on the outer wall of the channel member 110, and the plural electromagnetic induction coils are sequentially arranged in the axial direction of the channel member 110 to satisfy the heating requirement of the heat conductive medium in the ultra-long channel member 110.

Alternatively, a plurality of electromagnetic induction coils may be electrically connected to the same power supply device or may be connected to different power supply devices.

In some embodiments of the present application, as shown in fig. 2, the heating system 100 further includes a bracket 140, and the heating member 130 may be installed in the inner cavity of the channel member 110 through the bracket 140.

The support 140 is used for bearing and supporting the heating member 130 so that a gap is formed between the heating member 130 located in the inner cavity of the channel member 110 and the inner wall 113 of the channel member 110, thereby preventing the high-temperature heating member 130 from burning the channel member 110 and causing damage to the channel member 110.

Alternatively, as shown in FIG. 2, the bracket 140 may be located in the interior cavity of the channel member 110 and connected to the inner wall 113 of the channel member 110.

Alternatively, as shown in FIG. 3, brackets 140 may be located at the ends of channel member 110 and connected to end walls 114 of channel member 110.

The end wall 114 of the channel member 110 refers to a wall surface located outside the inner cavity of the channel member 110 for forming one end of the channel member 110. Generally, the end wall 114 of the channel member 110 is perpendicular to the inner wall 113 of the channel member 110.

Alternatively, the number of brackets 140 is more than one, and there are two brackets 140 in more than one bracket 140 disposed near the inlet end 111 and the outlet end 112 of the channel member 110, respectively.

In the embodiment of the present application, the support 140 is fixedly connected to the channel member 110, and the support 140 is fixedly connected to the heating member 130. Optionally, the fixing connection mode is at least one selected from the group consisting of bolting, clamping and riveting.

Alternatively, the support 140 may be a non-magnetically permeable support 140. The non-magnetically permeable support 140 refers to a support 140 made of a non-magnetically permeable material, and the support 140 has no magnetic permeability, and thus generates no heat although being located in the alternating magnetic field provided by the electromagnetic induction member 120. Illustratively, the non-magnetically permeable support 140 may be an aluminum alloy support 140, a stainless steel support 140, a plastic support 140, or the like.

In some embodiments of the present application, as shown in fig. 4, the heating member 130 includes a magnetically conductive heating tube 131, and the axis of the magnetically conductive heating tube 131 is parallel or coincident with the axis of the channel member 110.

The magnetically conductive heating pipe 131 refers to a heating pipe made of a magnetically conductive material, and has magnetic permeability, so that heat is generated when the heating pipe is located in the alternating magnetic field provided by the electromagnetic induction member 120. Alternatively, the magnetically conductive heating pipe 131 may be an iron pipe, an iron-nickel alloy pipe, or the like.

The magnetically permeable heating tube 131 is located in the interior cavity of the channel member 110, and the magnetically permeable heating tube 131 may be coaxial with the channel member 110 or may be offset in the interior cavity of the channel member 110. Wherein the coaxial line of the magnetically conductive heating tube 131 and the channel member 110 means that the axis of the magnetically conductive heating tube 131 coincides with the axis of the channel member 110; biasing the magnetically permeable heating tube 131 in the interior cavity of the channel member 110 means that the axis of the magnetically permeable heating tube 131 is parallel to but not coincident with the axis of the channel member 110.

In some embodiments of the present application, the number of the magnetically-conductive heating pipes 131 is more than one, the pipe diameters of the more than one magnetically-conductive heating pipes 131 are different from each other, and the more than one magnetically-conductive heating pipes 131 are coaxially disposed with the channel member 110.

Illustratively, as shown in fig. 4, the number of the magnetically conductive heating pipes 131 is two, wherein the magnetically conductive heating pipes 131 with relatively large pipe diameters are sleeved outside the magnetically conductive heating pipes 131 with relatively small pipe diameters, and the two magnetically conductive heating pipes 131 are coaxial with the channel member 110. A heat transfer medium such as air may flow through and heat the inside of the relatively small pipe diameter of the magnetically conductive heating pipes 131, between the two magnetically conductive heating pipes 131, and between the relatively large pipe diameter of the magnetically conductive heating pipes 131 and the inner wall 113 of the drying tunnel.

In some embodiments of the present application, as shown in fig. 4, the heating system 100 further includes an electromagnetic shielding member 150, where the electromagnetic shielding member 150 is disposed around the outside of the electromagnetic induction member 120, and is used for shielding electromagnetic radiation generated by the electromagnetic induction member 120.

The electromagnetic shielding member 150 may be made of an electrical material or a magnetic material, wherein the electrical material may be metal, conductive polymer, conductive coating, conductive fabric, etc.; the magnetic material may be ferrite, soft magnetic material, iron-nickel alloy, or the like, for example.

Optionally, the electromagnetic shielding member 150 is an iron-nickel alloy tube or other metal tube/alloy tube, which has electromagnetic shielding performance and also has a good heat dissipation effect, so that the electromagnetic induction coil dissipates heat rapidly.

The embodiment of the present application further provides a drying apparatus, as shown in fig. 5, which includes the heating system 100 according to any one of the above embodiments.

In some embodiments, the drying apparatus may further include a blower 200, a tub 300, and an exhaust system 400. Wherein the blower 200 is disposed at an inlet end 111 of the tunnel 110 of the heating system 100 for introducing the heat-conductive medium into the tunnel 110; the tub 300 communicates with the outlet end 112 of the passage member 110; the exhaust system 400 communicates with an end of the tub 300 remote from the passage 110 for exhausting the heat transfer medium.

For a drying apparatus, the heat-conducting medium is generally a gaseous substance, such as air, for good drying.

The blower 200 refers to a device capable of driving a gaseous heat transfer medium to flow in a set direction, for example, in the present embodiment, the blower 200 is capable of introducing the gaseous heat transfer medium into the channel member 110 of the heating system 100 so that the heat transfer medium can be heated in the heating system 100.

The tub 300 is for accommodating objects to be dried, such as wet laundry, fabric, etc. The outlet end 112 of the channel member 110 is communicated with the tub 300, so that the heated heat-conducting medium can enter the tub 300, and the object to be dried in the tub 300 is dried by using the carried high temperature, so that the moisture on the object to be dried is vaporized and flows out, thereby achieving the effects of dehumidifying.

The exhaust system 400 is connected to the tub 300 for exhausting the heat conductive medium having flowed through the tub 300 to the outside of the tub 300. In which, since the heat transfer medium having passed through the tub 300 has completed heat exchange with the object to be dried, it generally has a relatively low temperature and a relatively high humidity, the exhaust system 400 may directly exhaust the heat transfer medium out of the tub 300 or treat the heat transfer medium and then exhaust the heat transfer medium out of the tub 300.

It should be noted that, a designer may process the heat-conducting medium discharged from the exhaust system 400 according to actual requirements. For example, the exhaust system 400 may exhaust the thermally conductive medium directly to the outside atmosphere; or the exhaust system 400 may be connected to a recycling device for recycling and treating the heat transfer medium and/or the wetted material carried by the heat transfer medium (which means that the object to be dried is wetted in the liquid state); or the exhaust system 400 may be connected to a circulation line, the other end of which is connected to the inlet end 111 of the passage member 110.

The drying equipment provided by the embodiment of the application has higher drying efficiency and energy-saving effect due to the heating system 100, and can realize accurate control of drying temperature.

In the description of the present application, it should be noted that the directions or positional relationships indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present application. Furthermore, the terms "first," "second," "third," and the like are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated.

The foregoing description is only for the convenience of those skilled in the art to understand the technical solution of the present application, and is not intended to limit the present application. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application should be included in the protection scope of the present application.

Claims

1. A heating system, characterized in that the heating system (100) comprises a channel member (110), an electromagnetic induction member (120) and a heating member (130);

The electromagnetic induction piece (120) is arranged on the outer side of the channel piece (110) in a surrounding mode;

The heating element (130) is located in the inner cavity of the channel element (110) and is configured to generate electromagnetic eddy currents under the action of the magnetic field of the electromagnetic induction element (120) so as to heat the heat conducting medium entering the inner cavity of the channel element (110).

2. The heating system of claim 1, wherein the electromagnetic induction member (120) comprises an electromagnetic induction coil wound on an outer wall of the channel member (110).

3. The heating system of claim 1, wherein the heating system (100) further comprises a bracket (140);

the bracket (140) is positioned in the inner cavity of the channel piece (110) and is connected with the inner wall (113) of the channel piece (110); or the bracket (140) is positioned at the end of the channel piece (110) and is connected with the end wall (114) of the channel piece (110);

the heating element (130) is mounted in the inner cavity of the channel element (110) by the bracket (140).

4. A heating system according to claim 3, wherein the holder (140) is a non-magnetically permeable holder.

5. A heating system according to any one of claims 1-4, characterized in that the heating element (130) comprises a magnetically conductive heating tube (131), the axis of the magnetically conductive heating tube (131) being parallel or coincident with the axis of the channel element (110).

6. The heating system according to claim 5, characterized in that the number of magnetically conductive heating pipes (131) is more than one, that the pipe diameters of more than one magnetically conductive heating pipe (131) are different from each other, and that more than one magnetically conductive heating pipe (131) is arranged coaxially with the channel member (110).

7. The heating system of claim 1, wherein the tunnel member (110) is a non-magnetically permeable drying tunnel.

8. The heating system of claim 1, wherein the heating system (100) further comprises an electromagnetic shield (150), the electromagnetic shield (150) being disposed around the outside of the electromagnetic induction (120) for shielding electromagnetic radiation generated by the electromagnetic induction (120).

9. A drying apparatus, characterized in that it comprises a heating system according to any one of claims 1-8.

10. The drying apparatus according to claim 9, further comprising a blower (200), a tub (300) and an exhaust system (400);

The fan (200) is arranged at an inlet end (111) of a channel piece (110) of the heating system (100) and is used for introducing a heat conducting medium into the channel piece (110);

the barrel (300) is in communication with the outlet end (112) of the channel member (110);

The exhaust system (400) communicates with an end of the tub (300) remote from the passage member (110) for exhausting the heat transfer medium.