CN108397814B

CN108397814B - Rotatable heating element assembly and warmer

Info

Publication number: CN108397814B
Application number: CN201810203837.4A
Authority: CN
Inventors: 杨鑫; 赵诚
Original assignee: Midea Group Co Ltd; GD Midea Environment Appliances Manufacturing Co Ltd
Current assignee: Midea Group Co Ltd; GD Midea Environment Appliances Manufacturing Co Ltd
Priority date: 2018-03-12
Filing date: 2018-03-12
Publication date: 2020-08-04
Anticipated expiration: 2038-03-12
Also published as: CN108397814A

Abstract

The invention discloses a rotatable heating element assembly which comprises a heating tube, a heating wire and fins, wherein the heating wire is positioned in the heating tube and is used for being connected with an external power supply, the fins are connected outside the heating tube, and the heating element assembly further comprises a driving piece which is used for driving the heating tube, the heating wire and the fins to synchronously rotate. The invention also discloses a warmer applying the rotatable heating element assembly. The warmer has the advantage of high heating speed.

Description

Rotatable heating element assembly and warmer

Technical Field

The invention relates to the technical field of heating equipment, in particular to a rotatable heating element assembly and a heater using the same.

Background

With the increasing improvement of living standard of people, the warmer becomes a necessary heating device for most families. The two ends of a heating element assembly in a traditional balanced warmer shell are fixed, cold air flows into the shell from an air inlet hole, rises after being heated by the heating element assembly and flows out of the shell from an air outlet hole, and the traditional balanced warmer is a typical natural convection type heating mode for heating air, but the warmer adopts the heating mode, and the heating speed is low, and the warmer cannot be opened and heated instantly.

Disclosure of Invention

The invention mainly aims to provide a rotatable heating element assembly and a heater using the same, and aims to solve the problem of low heating speed of the conventional heater.

In order to achieve the purpose, the rotatable heating element assembly provided by the invention comprises a heating tube, a heating wire and fins, wherein the heating wire is positioned in the heating tube and is used for being connected with an external power supply, the fins are connected outside the heating tube, and the rotatable heating element assembly further comprises a driving piece which is used for driving the heating tube, the heating wire and the fins to synchronously rotate.

Preferably, the heating element assembly further comprises a first end cover and a second end cover, the first end cover is fixed at the first end of the heating tube, and the second end cover is fixed at the second end of the heating tube; the driving piece is a driving motor, an output shaft of the driving motor is connected with the first end cover, and the heating wire is connected with the second end cover.

Preferably, the first end cap includes a first head and a first extension portion connected to the first head, the first head is attached to an end of the first end of the heating tube, the first extension portion is sleeved in the heating tube and fixed to the first end of the heating tube, a through hole for inserting an output shaft of the driving motor is formed in the first end cap, and the output shaft of the driving motor is in interference fit with the through hole.

Preferably, the second end cap includes a second head and a second extension portion connected to the second head, the second head is attached to an end of the second end of the heating tube, the second extension portion is sleeved in the heating tube and fixed to the second end of the heating tube, the heating wire is embedded in the second end cap, and a free end of the heating wire extends out of the second end cap to be connected to the external power supply.

Preferably, the heating element assembly further comprises a power adapter, the power adapter is provided with an annular power supply groove, the free end of the heating wire is provided with an electrode contact, and the electrode contact is abutted and slidably arranged on the annular power supply groove.

Preferably, the number of the electrode contacts is three, the number of the annular power supply grooves is two, and the two electrode contacts and the two annular power supply grooves are arranged in a one-to-one correspondence manner; the power adapter is characterized in that a circular power supply groove is further formed in the center of the annular power supply groove, and the other electrode contact is abutted and slidably arranged in the circular power supply groove.

Preferably, the number of the fins is multiple, and the multiple fins are arranged around the axis of the heating tube at intervals.

Preferably, the number of the heating wires is multiple, and each heating wire is coiled in the heating tube.

The invention also provides a warmer, which comprises a shell and the rotatable heating element assembly, wherein a heating cavity is formed in the shell, the heating element assembly is accommodated in the heating cavity, the shell is provided with an air inlet hole and an air outlet hole, and the air inlet hole is close to the heating element assembly.

Preferably, the length of the heat-generating body assembly extends in a horizontal direction or in a vertical direction.

In the technical scheme of the invention, when the warmer is used, external cold air enters the shell through the air inlet hole, the heating wire is electrified, the heating wire generates heat after being electrified, and the heat is transferred to the heating light and the fins, so that the cold air in the shell is heated. At the in-process of heating cold air, start the driving piece to drive heating tube, heater and fin synchronous rotation, stir the air in the casing, accelerated the flow of casing internal air current, and then promoted rate of heating, made this room heater in the short time with the cold air heating of its casing, the cold air after the heating becomes hot-air from the exhaust vent outflow casing, realizes opening the heating process of instant heating promptly. The warmer of the invention also has the advantages of simple structure and easy manufacture.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.

FIG. 1 is an exploded view of a warmer according to an embodiment of the present invention;

FIG. 2 is an assembly view of the warmer of the present invention with the front shell omitted;

FIG. 3 is an assembly view of the warmer of the present invention with the front and rear housings omitted;

FIG. 4 is an enlarged schematic view of area A in FIG. 3;

FIG. 5 is a schematic plan view of a power adapter in the warmer of the present invention;

FIG. 6 is an assembled view of a warmer according to another embodiment of the present invention.

The reference numbers illustrate:

reference numerals	Name (R)	Reference numerals	Name (R)
				1	Shell body	11	Air outlet
12	Air inlet	13	Front shell
				14	Rear shell	2	Heating tube
3	Heating wire	31	Electrode contact
				4	Fin	5	Driving motor
51	Output shaft	6	First end cap
				61	First head	62	First extension part
7	Second end cap	71	Second head
				72	Second extension part	8	Power supply adapter
81	Annular power supply groove	82	Circular power supply groove
				9	Mounting seat	10	Power supply fixing seat

The objects, features and advantages of the present invention will be further explained with reference to the accompanying drawings.

Detailed Description

The technical solutions in the embodiments will be described clearly and completely with reference to the drawings in the embodiments, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

It should be noted that all the directional indications (such as up, down, left, right, front, and rear … …) in the present embodiment are only used to explain the relative positional relationship between the components, the movement, and the like in a specific posture (as shown in the drawings), and if the specific posture is changed, the directional indication is changed accordingly.

In addition, the descriptions related to "first", "second", etc. in the present invention are only for descriptive purposes and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.

In the present invention, unless otherwise expressly stated or limited, the terms "connected," "secured," and the like are to be construed broadly, and for example, "secured" may be a fixed connection, a removable connection, or an integral part; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

In addition, the technical solutions in the embodiments of the present invention may be combined with each other, but it must be based on the realization of those skilled in the art, and when the technical solutions are contradictory or cannot be realized, such a combination of technical solutions should not be considered to exist, and is not within the protection scope of the present invention.

It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

As shown in fig. 1 to fig. 3, the rotatable heating element assembly provided by the present invention can be applied to a warmer or other devices requiring heating, and the embodiment takes the warmer as an example for description. The room heater of this embodiment includes casing 1 and heat-generating body subassembly, and the intracavity that generates heat is formed in casing 1, and the heat-generating body subassembly holding has seted up exhaust vent 11 and fresh air inlet 12 in the chamber that generates heat, casing 1, and fresh air inlet 12 is close to the heat-generating body subassembly. The heat-generating body subassembly includes heating tube 2, heater 3 and fin 4, and heater 3 is located heating tube 2 and is used for being connected with external power source, and fin 4 connects outside heating tube 2, and the heat-generating body subassembly is still including setting up the driving piece on casing 1, and the driving piece is used for driving heating tube 2, heater 3 and fin 4 synchronous rotation.

When the warmer of the embodiment is used, external cold air enters the shell 1 through the air inlet 12, the heating wire 3 is electrified, the heating wire 3 generates heat after being electrified, and heat is transferred to the heating tube 2 and the fins 4, so that the cold air in the shell 1 is heated. At the in-process of heating cold air, start the driving piece to drive heating tube 2, heater 3 and fin 4 synchronous rotation, stir the air in casing 1, accelerated the flow of casing 1 internal air current, and then promoted the rate of heating, make this room heater in the short time with the cold air heating in its casing 1, the cold air after the heating becomes hot-air and flows out casing 1 from exhaust vent 11, realizes opening promptly the heating process of heating promptly. The warmer of the embodiment also has the advantages of simple structure and easy manufacture.

It can be understood that under the condition that the heater is not needed to be opened and heated instantly, the driving piece is not needed to be started, the heating tube 2, the heating wire 3 and the fins 4 of the heating body component can not rotate, so that the heater can realize the heating process of natural convection type heating air, and different requirements of users are met.

As shown in fig. 1 to 3, in the present embodiment, the heat generating body assembly further includes a first end cap 6 and a second end cap 7, the first end cap 6 is fixed at the first end of the heat generating tube 2, and the second end cap 7 is fixed at the second end of the heat generating tube 2; the driving part is a driving motor 5, an output shaft 51 of the driving motor 5 is connected with the first end cover 6, and the heating wire 3 is connected with the second end cover 7. Starting driving motor 5, driving motor 5 passes through output shaft 51 drive first end cover 6 and rotates, and first end cover 6 drives heating tube 2 and second end cover 7 and rotates, and then drives fin 4 and heater 3 and rotate, realizes heating tube 2, heater 3 and fin 4's synchronous rotation promptly, and simple structure is ingenious, easily preparation.

Specifically, the first end cap 6 includes a first head portion 61 and a first extension portion 62, the first head portion 61 is connected to the first extension portion 62, the first head portion 61 is attached to an end portion of the first end of the heating tube 2, and the first extension portion 62 is sleeved in the heating tube 2 and fixed to the first end of the heating tube 2. Offer the male through-hole of output shaft 51 that supplies driving motor 5 on the first end cover 6, driving motor 5's output shaft 51 and through-hole interference fit for driving motor 5 realizes the fastening connection with first end cover 6, thereby drives first end cover 6 and rotates when driving motor 5 starts, and then makes heating tube 2, heater 3 and fin 4 synchronous revolution.

It should be noted that, in other embodiments, the output shaft 51 of the driving motor 5 may be in a key fit or other fastening connection with the first end cap 6, and the connection between the output shaft 51 of the driving motor 5 and the first end cap 6 is not limited in the present invention.

As shown in fig. 1 to 4, in the embodiment, the second end cap 7 includes a second head portion 71 and a second extending portion 72, the second head portion 71 is connected to the second extending portion 72, the second head portion 71 is closely attached to an end portion of the second end of the heating tube 2, the second extending portion 72 is sleeved in the heating tube 2 and fixed to the second end of the heating tube 2, the heating wire 3 is embedded in the second end cap 7, and a free end of the heating wire 3 extends out of the second end cap 7 for being connected to an external power supply. When the heating tube 2 rotates, the second end cover 7 is driven to rotate, the heating wire 3 is embedded in the second end cover 7, the heating wire 3 can be driven to rotate when the second end cover 7 rotates, the free end of the heating wire 3 extends out of the second end cover 7, and the free end of the heating wire 3 is connected with an external power supply, so that the heating wire 3 is conveniently electrified.

As shown in fig. 1, fig. 3 and fig. 5, in this embodiment, the heating element assembly further includes a power adapter 8, an annular power supply groove 81 is formed on the power adapter 8, an electrode contact 31 is arranged at a free end of the heating wire 3, and the electrode contact 31 abuts against and is slidably arranged in the annular power supply groove 81. In the process of rotating the heating wire 3, the electrode contact 31 slides in the annular power supply groove 81 along with the rotation of the heating wire 3, so that brush type power supply is realized. It can be understood that the shape of the annular power supply groove 81 of the present embodiment is consistent with the sliding track of the electrode contact 31, the electrode contact 31 is always kept in contact with the annular power supply groove 81 in the power adapter 8, and the power supply process to the heating wire 3 can be realized in the process of synchronous rotation of the heating tube 2, the heating wire 3 and the fin 4.

In this embodiment, the number of the electrode contacts 31 is three, and the number of the annular power supply grooves 81 is two, wherein the two electrode contacts 31 and the two annular power supply grooves 81 are arranged in a one-to-one correspondence; a circular power supply groove 82 is formed in the power adapter 8 at the center of the annular power supply groove 81, and the other electrode contact 31 abuts against and is slidably arranged in the circular power supply groove 82. The three electrode contacts 31 can be switched on and off in different states, so that the warmer has different working powers.

Specifically, the power adapter 8 is circular, a circular power supply groove 82 is formed in the center of the power adapter 8, and two annular power supply grooves 81 are sequentially arranged at intervals from the center to the edge of the power adapter 8. Two electrode contacts 31 are arranged in one-to-one correspondence with the two annular power supply grooves 81, in the rotating process of the heating wire 3, the two electrode contacts 31 respectively slide in the two annular power supply grooves 81 corresponding to the two electrode contacts, and the rotating track of the other electrode contact 31 is unchanged, so that the electrode contacts can rotate in situ in the circular power supply groove 82, and the assembling requirements of parts with different structures are met. It should be noted that the electrode contact 31 may have various shapes, such as a hexahedron shape, a thin brush shape, or a spherical shape, and the shape of the electrode contact 31 of the present embodiment is preferably a spherical shape.

In this embodiment, the number of the fins 4 is plural, and the plural fins 4 are arranged at regular intervals around the axial center of the heat generating tube 2. When the driving motor 5 is started, the plurality of fins 4 can rotate simultaneously, so that the air flow in the shell 1 is further accelerated, and the heating speed is increased. In the warmer of the present embodiment, for further increasing the acceleration, the number of the heating wires 3 arranged in the heating tube 2 is multiple, and each heating wire 3 has a longer length and can be coiled in the heating tube 2.

The housing 1 of the present embodiment includes a front housing 13 and a rear housing 14, the air outlet 11 is located on the front housing 13 near the top, and the air inlet 12 is located on the rear housing 14 near the bottom. Cold air enters the shell 1 from the air inlet hole 12, rises to the air outlet hole 11 after being stirred and heated by the heating element assembly and flows out of the shell 1 from the air outlet hole 11, the cold air outside the shell 1 enters the shell 1 from the air inlet hole 12 again and flows out of the shell 1 from the air outlet hole 11 after being heated, and the process of circular heating of the warmer is realized.

In this embodiment warmer, there is a mounting seat 9 on the inner wall of one side of the casing 1, and the driving motor 5 is installed on the mounting seat 9, so as to fix the driving motor 5. Be equipped with power fixing base 10 on the opposite side inner wall of casing 1, power adaptor 8 installs on power fixing base 10, realizes power adaptor 8's fixed.

The length of the heating element assembly in the warmer extends along the horizontal direction or extends along the vertical direction. In this embodiment, the length of the heat-generating body assembly extends in the horizontal direction, that is, the heat-generating body assembly is horizontally disposed. In another embodiment, as shown in FIG. 6, the length of the heat generating body assembly may be extended in the vertical direction, that is, the heat generating body assembly may be disposed vertically. When the heating element assembly is vertically arranged, the mounting seat 9 and the driving motor 5 are positioned below the heating element assembly, and the power adapter 8 and the power fixing seat 10 are positioned above the heating element assembly, so that the arrangement mode of the heating element assembly is flexibly designed according to actual conditions.

It should be noted that the length extending direction of the heating element assembly in the warmer of the present invention may be a vertical direction, or may be inclined to the vertical direction to a certain extent, that is, the length extending direction of the heating element assembly may have a certain included angle with the vertical direction, and preferably, the included angle between the length extending direction of the heating element assembly and the vertical direction may be not more than 30 °.

The above description is only a preferred embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications of equivalent structures and equivalent processes, which are made by using the contents of the present specification and the accompanying drawings, or directly or indirectly applied to other related technical fields, are included in the scope of the present invention.

Claims

1. A rotatable heating element assembly is characterized by comprising a heating tube, a heating wire and fins, wherein the heating wire is positioned in the heating tube and is used for being connected with an external power supply;

the heating element assembly further comprises a power supply adapter, an annular power supply groove is formed in the power supply adapter, an electrode contact is arranged at the free end of the heating wire, and the electrode contact is abutted and slidably arranged in the annular power supply groove.

2. A rotatable heat-generating body assembly as described in claim 1 further comprising a first end cap and a second end cap, the first end cap being secured to a first end of the heat-generating tube and the second end cap being secured to a second end of the heat-generating tube; the driving piece is a driving motor, an output shaft of the driving motor is connected with the first end cover, and the heating wire is connected with the second end cover.

3. A rotatable heat generating body assembly as claimed in claim 2, characterized in that the first end cap comprises a first head and a first extension part connected with the first head, the first head is closely attached to the end of the first end of the heat generating tube, the first extension part is sleeved in the heat generating tube and fixed with the first end of the heat generating tube, the first end cap is provided with a through hole for inserting the output shaft of the driving motor, and the output shaft of the driving motor is in interference fit with the through hole.

4. A rotatable heat generating body assembly as claimed in claim 2, wherein the second end cap includes a second head portion and a second extension portion connected with the second head portion, the second head portion is closely attached to the end portion of the second end of the heat generating tube, the second extension portion is sleeved in the heat generating tube and fixed with the second end of the heat generating tube, the heater is embedded in the second end cap, and the free end of the heater extends out of the second end cap for connection with the external power supply.

5. A rotatable heat-generating body assembly as described in claim 1, wherein the number of said electrode contacts is three, and the number of said annular power-supplying grooves is two, wherein two of said electrode contacts are arranged in one-to-one correspondence with two of said annular power-supplying grooves; the power adapter is characterized in that a circular power supply groove is further formed in the center of the annular power supply groove, and the other electrode contact is abutted and slidably arranged in the circular power supply groove.

6. A rotatable heat-generating body assembly as described in any one of claims 1 to 5, wherein the number of the fins is plural, and the plural fins are arranged at intervals around the axial center of the heat-generating tube.

7. A rotatable heat-generating body assembly as described in any one of claims 1 to 5, wherein the number of the heating wires is plural, and each of the heating wires is coiled in the heating tube.

8. A warmer, comprising a housing and a rotatable heat-generating body assembly as claimed in any one of claims 1 to 7, wherein a heat-generating chamber is formed in the housing, the heat-generating body assembly is accommodated in the heat-generating chamber, the housing is provided with an air inlet hole and an air outlet hole, and the air inlet hole is close to the heat-generating body assembly.

9. The warmer of claim 8, wherein the length of the heat-generating body assembly extends in a horizontal direction or in a vertical direction.