CN216481201U - Electric heater - Google Patents

Abstract

The utility model discloses an electric heater, which comprises an electric heating piece, wherein the electric heating piece comprises a flexible protective outer sleeve and a heating device; the protective outer sleeve comprises a first mounting part and a second mounting part, a main connecting piece is arranged at one end of the first mounting part, which is far away from the second mounting part, and an auxiliary connecting piece detachably connected with the main connecting piece is arranged at one end of the second mounting part, which is far away from the first mounting part; the heating device comprises a bendable heating sheet and a source control assembly, the heating sheet is arranged in a first installation part, the power control assembly is arranged in a second installation part, and the first installation part and the second installation part are arranged along the length direction of the heating sheet; when the electric heating piece is in a straight plate state, the main connecting piece and the auxiliary connecting piece are mutually separated; when the electric heating piece is in a bending state, the main connecting piece and the auxiliary connecting piece are connected with each other to enable the electric heating piece to form a hand inserting cavity. The heating sheet plays a certain role in supporting the bent shape of the electric heating piece and can be sleeved on the arm or the wrist of a user, so that the hands of the user are liberated, and other things can be done while heating.

Description

Electric heater

Technical Field

The utility model relates to a heating installation's technical field especially relates to an electric heater.

Background

The hot-water bag is a common heating tool for people in cold winter, hot water needs to be injected when the hot-water bag is used, the heating mode mainly depends on storage and release of heat by media, the heat preservation and heating time is limited, water needs to be changed frequently, and the hot-water bag is inconvenient to use and easy to scald hands. Hand warmer is an upgrading product based on hot-water bag, and common hand warmer encapsulates the energy storage medium to add electric heater unit in the medium, make it have the function of plug-and-play hot instant messenger. The medium cooling back insert the electrical heating once more can, but this kind of water warmer has the explosion risk, and electric heating device directly heating medium, has the potential safety hazard of leaking water and leaking electricity. Therefore, the existing heating devices, such as hand warmers, foot warmers, uterus warmers and the like, are mostly heated by heating devices, are small and portable, do not need to add water, and increase safety.

However, to current hand warmer, the user need insert hand warmer's the hand chamber of inserting with the palm to get warm to user's palm, when user's palm inserts hand warmer's the hand chamber of inserting, the hand just can't do other things, and it is very inconvenient to use. The piece that generates heat is adopted usually in the current hand warmer, and piece length direction that generates heat is usually with the length parallel who inserts the hand chamber, leads to inserting the hand chamber and is flat state usually, is unsuitable to get warm to the arm. Moreover, the existing hand warmer can only be used for warming hands, and has poor effect when warming feet.

SUMMERY OF THE UTILITY MODEL

In order to overcome the shortcoming and the insufficiency that exist among the prior art, the utility model aims to provide an electric heater to it is not suitable to carry out the problem of heating to the arm to solve among the prior art hand warmer.

The purpose of the utility model is realized through the following technical scheme:

the utility model provides an electric heater, which comprises an electric heating piece, wherein the electric heating piece comprises a flexible protective outer sleeve and a heating device arranged in the protective outer sleeve;

the protective outer sleeve comprises a first mounting part and a second mounting part which are connected with each other, a main connecting piece is arranged at one end of the first mounting part, which is far away from the second mounting part, an auxiliary connecting piece is arranged at one end of the second mounting part, which is far away from the first mounting part, and the main connecting piece is detachably connected with the auxiliary connecting piece;

the heating device comprises a bendable heating sheet and a power supply control assembly electrically connected with the heating sheet, the power supply control assembly is used for controlling the heating amount of the heating sheet, the heating sheet is installed in the first installation part, the power supply control assembly is installed in the second installation part, and the first installation part and the second installation part are arranged along the length direction of the heating sheet;

when the electric heating piece is in a straight plate state, the main connecting piece and the auxiliary connecting piece are mutually separated; when the electric heating piece is in a bent state, the main connecting piece is connected with the auxiliary connecting piece, and the electric heating piece is wound to form a hand inserting cavity.

Further, vice connecting piece includes first vice connecting piece and the vice connecting piece of second, the vice connecting piece of second is located first vice connecting piece is close to one side of first installation department, main connecting piece can alternatively with first vice connecting piece with the connection can be dismantled to the vice connecting piece of second, main connecting piece with form when first vice connecting piece is connected insert the size in hand chamber and be greater than main connecting piece with form when the vice connecting piece of second inserts the size in hand chamber.

Further, the main connecting piece includes first main connecting piece and second main connecting piece, the second main connecting piece is located first main connecting piece is close to one side of second installation department, vice connecting piece can alternatively with first main connecting piece with the connection can be dismantled to second main connecting piece, vice connecting piece with form when first main connecting piece is connected insert the size in hand chamber is greater than vice connecting piece with form when second main connecting piece is connected insert the size in hand chamber.

Further, the main connecting piece and the auxiliary connecting piece are positioned on two opposite sides of the protective outer sleeve in the thickness direction.

Furthermore, the number of the heating pieces is multiple, and the heating pieces are arranged along the axial direction of the hand inserting cavity.

Furthermore, the power control assembly comprises a circuit board, a control key, a display and a power interface, and the heating sheet, the control key, the display and the power interface are electrically connected with the circuit board.

Further, power control assembly still includes the battery, the second installation department is equipped with circuit board protective housing and battery protective housing, the battery with circuit board electric connection is used for power control assembly provides the electric energy, the circuit board control button the display and power source all locates in the circuit board protective housing, the control button the display and power source keeps away from the one end of circuit board is all followed expose in the circuit board protective housing, the battery is located in the battery protective housing.

Further, the one end of circuit board protective housing can be relative the second installation department rotates, the second installation department still is equipped with the mounting groove, circuit board protective housing selectively install in the mounting groove.

Further, the power control assembly further comprises a temperature sensor, the temperature sensor is electrically connected with the circuit board, and the temperature sensor is arranged in the first installation part and is in contact with the heating sheet.

Further, the electric heater still includes the podotheca, the podotheca be equipped with the pin chamber and with the installation cavity that the pin chamber is spaced apart each other, the installation cavity is used for the installation when being in the straight board state warm spare of electricity.

The utility model has the advantages that: through arranging first installation department and second installation department along the length direction who generates heat the piece, make electric heating piece when the bending condition, along the length direction bending of the piece that generates heat, generate heat the piece and can play certain support and can fine cover the arm or the wrist of locating the user to the shape after electric heating piece is crooked, can also utilize the piece that generates heat to surround user's arm or wrist more fully and keep warm, thereby can liberate user's both hands, in the heating, can also do other things.

Drawings

Fig. 1 is a schematic view of a three-dimensional structure of a middle electric heating element of the utility model in a straight plate state;

FIG. 2 is a schematic cross-sectional view of the electric heating element of the present invention in a straight state;

fig. 3 is one of the schematic three-dimensional structures of the middle electric heating element of the present invention in a bent state;

fig. 4 is a second schematic view of the three-dimensional structure of the middle electric heating element of the present invention in a bent state;

FIG. 5 is a schematic view of the electric heating element of the present invention in a vertical state;

fig. 6 is a schematic view of the electric heating element of the present invention in a state of being in a straight plate;

fig. 7 is a schematic view of the three-dimensional structure of the middle electric heater of the present invention;

fig. 8 is the utility model discloses well electric heater's split structure schematic diagram.

Detailed Description

To further illustrate the technical means and effects of the present invention for achieving the objectives of the present invention, the following detailed description will be made in conjunction with the accompanying drawings and preferred embodiments for the specific embodiments, structures, features and effects of the electric heater according to the present invention as follows:

fig. 1 is the utility model discloses the spatial structure schematic diagram of well electric heating piece when the straight board state, fig. 2 is the utility model discloses the cross-sectional structure schematic diagram of well electric heating piece when the straight board state, fig. 3 is the utility model discloses one of the spatial structure schematic diagram of well electric heating piece when the bending state, fig. 4 is the utility model discloses two of the spatial structure schematic diagram of well electric heating piece when the bending state, fig. 5 is the utility model discloses the overlooking split structure schematic diagram of well electric heating piece when the straight board state, fig. 6 is the utility model discloses the up-looking split structure schematic diagram of well electric heating piece when the straight board state, fig. 7 is the utility model discloses the spatial structure schematic diagram of well electric heater, fig. 8 is the utility model discloses the split structure schematic diagram of well electric heater.

As shown in fig. 1 to fig. 6, the utility model provides an electric heater, including the electric heating piece 100, the electric heating piece 100 includes flexible protective outer cover 10 and locates the heating device 20 in the protective outer cover 10.

The protective outer sleeve 10 comprises a first installation part 11 and a second installation part 12 which are connected with each other, a main connecting piece 111 is arranged at one end, away from the second installation part 12, of the first installation part 11, an auxiliary connecting piece 121 is arranged at one end, away from the first installation part 11, of the second installation part 12, and the main connecting piece 111 and the auxiliary connecting piece 121 are detachably connected.

The heating device 20 comprises a bendable heating sheet 21 and a power supply control component 22 electrically connected with the heating sheet 21, the power supply control component 22 is used for controlling the heating amount of the heating sheet 21, the heating sheet 21 is installed in the first installation part 11, the power supply control component 22 is installed in the second installation part 12, and the first installation part 11 and the second installation part 12 are arranged along the length direction of the heating sheet 21.

As shown in fig. 1, when the electric warming member 100 is in a straight state, the main connecting member 111 and the auxiliary connecting member 121 are separated from each other; as shown in fig. 3 and 4, when the electric heating element 100 is in a bending state, the main connecting element 111 and the auxiliary connecting element 121 are connected to each other, and the electric heating element 100 is wound to form the hand inserting cavity 101, i.e. the electric heating element 100 is curled along the length direction of the heating sheet 21, and then the two ends of the electric heating element 100 are connected together through the main connecting element 111 and the auxiliary connecting element 121, so that the electric heating element 100 forms the cylindrical hand inserting cavity 101 and can be matched with the arm or the wrist of a user.

The protective outer sleeve 10 is preferably made of flannelette, and is firm in structure and soft in touch, so that good product experience is brought to users. Of course, the protective outer cover 10 may also be provided with a filling layer, and the filling layer may be made of a high temperature resistant and heat insulating material, such as cotton. The heating sheet 21 is preferably a graphene heating sheet, but may be a metal resistance sheet.

The utility model discloses a arrange first installation department 11 and second installation department 12 along the length direction of piece 21 that generates heat, make electric heating member 100 when the bending condition, it is crooked along the length direction of piece 21 that generates heat, piece 21 that generates heat can play certain supporting role to electric heating member 100 after the bending, and can locate user's arm or wrist by fine cover, keep warm to user's arm or wrist, thereby user's both hands can be liberated, make the user in the heating, can also do other things.

Further, the main link 111 includes a first main link 111a and a second main link 111b, and the second main link 111b is located at a side of the first main link 111a adjacent to the second mounting portion 12. The auxiliary connecting member 121 can be alternatively detachably connected to the first main connecting member 111a and the second main connecting member 111b, and the size of the hand insertion cavity 101 formed when the auxiliary connecting member 121 is connected to the first main connecting member 111a is larger than the size of the hand insertion cavity 101 formed when the auxiliary connecting member 121 is connected to the second main connecting member 111 b. Of course, the secondary connection member 121 may include a first secondary connection member 121a and a second secondary connection member 121b, and the second secondary connection member 121b may be located on a side of the first secondary connection member 121a adjacent to the first mounting portion 11. The main connecting piece 111 can be alternatively detachably connected with the first auxiliary connecting piece 121a and the second auxiliary connecting piece 121b, and the size of the hand insertion cavity 101 formed when the main connecting piece 111 is connected with the first auxiliary connecting piece 121a is larger than the size of the hand insertion cavity 101 formed when the main connecting piece 111 is connected with the second auxiliary connecting piece 121 b. In the present embodiment, as shown in fig. 5 and 6, the main connection member 111 includes a first main connection member 111a and a second main connection member 111b, the second main connection member 111b is located at a side of the first main connection member 111a adjacent to the second mounting portion 12, and the sub connection member 121 includes a first sub connection member 121a and a second sub connection member 121b, and the second sub connection member 121b is located at a side of the first sub connection member 121a adjacent to the first mounting portion 11. The first main connecting piece 111a can be detachably connected with the first auxiliary connecting piece 121a, the second main connecting piece 111b can be detachably connected with the second auxiliary connecting piece 121b, and the size of the hand insertion cavity 101 formed when the first main connecting piece 111a is connected with the first auxiliary connecting piece 121a is larger than the size of the hand insertion cavity 101 formed when the second main connecting piece 111b is connected with the second auxiliary connecting piece 121 b. Therefore, the electric heating element 100 can be sleeved on arms or wrists with different sizes, so that the number of people for whom the electric heating element 100 is suitable is increased.

Preferably, the main connecting piece 111 and the auxiliary connecting piece 121 are located on two opposite sides of the protective outer sleeve 10 in the thickness direction, and after the electric heating piece 100 is wound, the connecting parts of the main connecting piece 111 and the auxiliary connecting piece 121 can be overlapped, so that air leakage or heat leakage at the position is not easy to occur, and the hand warming effect is not influenced. In this embodiment, the second main connection member 111b and the second sub-connection member 121b are respectively located at opposite sides of the protective outer sheath 10 in the thickness direction. When second main connecting piece 111b and the vice connecting piece 121b interconnect of second, warm piece 100 of electricity has partial coincidence for this position is difficult to leak out or leak to generate heat and influences warm hand effect, can also make warm piece 100 of electricity more pleasing to the eye moreover. Of course, in other embodiments, the first main connecting element 111a and the first auxiliary connecting element 121a may be respectively located at two opposite sides of the protective outer sleeve 10 in the thickness direction.

In this embodiment, the first main connecting piece 111a and the first auxiliary connecting piece 121a adopt mutually matched snap structures, so as to realize detachable connection; the second main connecting member 111b and the second auxiliary connecting member 121b adopt a hook and loop structure which is matched with each other, thereby realizing detachable connection. Of course, the first main connecting part 111a and the first auxiliary connecting part 121a may also adopt a hook and loop fastener, a magnet or a button structure that are matched with each other, and the second main connecting part 111b and the second auxiliary connecting part 121b may also adopt a buckle, a magnet or a button structure that are matched with each other.

Further, the number of the heat generating pieces 21 is plural, and the plural heat generating pieces 21 are arranged along the axial direction of the hand inserting chamber 101. In this embodiment, the quantity of the piece 21 that generates heat is two, and two pieces 21 that generate heat arrange along hand inserting chamber 101 length direction to increase electric heating 100 and to user's heating region, promote the heating effect. Of course, the number of the heat generating sheets 21 may be one, and although the heating effect is poor, this embodiment is not excluded.

In this embodiment, the power control assembly 22 includes a circuit board 221, a control button 222, a display 223 and a power interface 224, and the heating sheet 21, the control button 222, the display 223 and the power interface 224 are electrically connected to the circuit board 221. The heating sheet 21 is connected to the circuit board 221 through a wire, and the control button 222, the display 223 and the power interface 224 are all soldered to the circuit board 221.

Further, the power control module 22 further includes a battery 225, and the battery 225 is electrically connected to the circuit board 221 and is used for providing power to the power control module 22. Preferably, the battery 225 employs a flexible battery, such as a graphene battery. Of course, the battery 225 may not be provided, and an external charger may be used to supply the power control module 22 with power instead of the battery 225.

Further, the second mounting portion 12 is provided with a circuit board protection shell 122 and a battery protection shell 123, the circuit board 221, the control key 222, the display 223 and the power interface 224 are all disposed in the circuit board protection shell 122, one ends of the control key 222, the display 223 and the power interface 224, which are far away from the circuit board 221, are all exposed from the circuit board protection shell 122, and the battery 225 is disposed in the battery protection shell 123. Preferably, the circuit board protective case 122 and the battery protective case 123 extend in the width direction of the heat generating sheet 21. A first accommodating cavity 102 is formed in the first mounting portion 11, a second accommodating cavity 103 is formed in the circuit board protective shell 122, and a third accommodating cavity (not shown) is formed in the battery protective shell 123. The heating sheet 21 is disposed in the first accommodating cavity 102, the circuit board 221, the control button 222, the display 223 and the power interface 224 are disposed in the second accommodating cavity 103, and the battery 225 is disposed in the third accommodating cavity. The first accommodating cavity 102, the second accommodating cavity 103 and the third accommodating cavity are isolated from each other, so that heat generated by the heat generating sheet 21 is reduced to be transferred to the second accommodating cavity 103 and the third accommodating cavity, and the battery 225 and electronic components (the circuit board 221, the display 223 and the like) are prevented from being damaged due to overheating.

Further, the power control assembly 22 further includes a temperature sensor 226, the temperature sensor 226 is electrically connected to the circuit board 221, the temperature sensor 226 is disposed in the first accommodating cavity 102 and contacts with the heat generating sheet 21, the temperature sensor 226 is used for detecting the temperature of the heat generating sheet 21, and displaying the temperature of the heat generating sheet 21 detected by the temperature sensor 226 on the display 223.

Further, the circuit board protection shell 122 is provided with a key cover 122a corresponding to the control key 222 and a display cover 122b corresponding to the display 223, the control key 222 can be operated through the key cover 122a, and information (such as temperature, residual capacity and the like) displayed by the display 223 can be viewed through the display cover 122 b.

In this embodiment, one end of the circuit board protection casing 121 is connected to the second mounting portion 12 by a flexible member, so that the one end of the circuit board protection casing 121 can rotate relative to the second mounting portion 12. The second mounting portion 12 is further provided with a mounting groove 124, and the circuit board protective case 122 is selectively mounted in the mounting groove 124. The button cover 122a and the display cover 122b are disposed on one side of the circuit board protection shell 122 facing the mounting groove 124, and the electric heating element 100 is in a bent state, so that the circuit board protection shell 121 can be folded open to expose the button cover 122a and the display cover 122b for a user to operate and view. Of course, in other embodiments, the circuit board protection casing 121 may be fixed with the second mounting portion 12, except that the key cover 122a and the display cover 122b are disposed on the side of the circuit board protection casing 122 away from the mounting groove 124, so that the key cover 122a can be operated and the display cover 122b can be viewed without folding the circuit board protection casing 121 open.

In this embodiment, as shown in fig. 7 and 8, the electric heater further includes a foot cover 30, and the foot cover 30 is preferably made of flannelette, so that the structure is firm, the touch feeling is soft, and good product experience is brought to a user. Of course, the foot cover 30 may also be provided with a filling layer, and the filling layer may be made of a high temperature resistant and heat insulating material, such as cotton.

The foot cover 30 is provided with a pin cavity 301 and a mounting cavity 302 spaced from the pin cavity 301, the pin cavity 301 is used for inserting a user's foot, and the mounting cavity 302 is used for mounting the electric heating element 100 in a straight plate state. When the foot needs to be warmed, the electric warming piece 100 is deformed into a straight plate state and is arranged in the installation cavity 302 of the foot cover 30; when the hand is warmed, the electric heating element 100 is taken out from the mounting cavity 302 of the foot sleeve 30, and the electric heating element 100 is bent, so that the electric heating element 100 is wound to form the hand inserting cavity 101 for the insertion of the arm or wrist of the user. Make the electric heater both can warm up hand and can warm up the foot, warm hand and warm foot separately removable moreover, and the podotheca 30 can be washd alone, and is cleaner more sanitary.

In this document, the terms of upper, lower, left, right, front, rear and the like are used to define the positions of the structures in the drawings and the positions of the structures relative to each other, and are only used for the sake of clarity and convenience in technical solution. It is to be understood that the use of the directional terms should not be taken to limit the scope of the claims. It is also to be understood that the terms "first" and "second," etc., are used herein for descriptive purposes only and are not to be construed as limiting in number or order.

The above description is only a preferred embodiment of the present invention, and the present invention is not limited to the above description in any form, and although the present invention has been disclosed with the preferred embodiment, it is not limited to the present invention, and any skilled person in the art can make some changes or modifications within the technical scope of the present invention without departing from the technical scope of the present invention, and the technical contents of the above disclosure can be utilized to make equivalent embodiments, but the technical contents of the present invention are not broken away from, and any simple modification, equivalent change and modification made to the above embodiments according to the technical spirit of the present invention all still belong to the protection scope of the technical solution of the present invention.

Claims (10)

1. The electric heater is characterized by comprising an electric heating piece (100), wherein the electric heating piece (100) comprises a flexible protective outer sleeve (10) and a heating device (20) arranged in the protective outer sleeve (10);

the protective outer sleeve (10) comprises a first installation part (11) and a second installation part (12) which are connected with each other, a main connecting piece (111) is arranged at one end, away from the second installation part (12), of the first installation part (11), an auxiliary connecting piece (121) is arranged at one end, away from the first installation part (11), of the second installation part (12), and the main connecting piece (111) is detachably connected with the auxiliary connecting piece (121);

the heating device (20) comprises a bendable heating sheet (21) and a power supply control assembly (22) electrically connected with the heating sheet (21), the heating sheet (21) is installed in the first installation part (11), the power supply control assembly (22) is installed in the second installation part (12), and the first installation part (11) and the second installation part (12) are arranged along the length direction of the heating sheet (21);

when the electric heating piece (100) is in a straight plate state, the main connecting piece (111) and the auxiliary connecting piece (121) are separated from each other; when the electric heating piece (100) is in a bent state, the main connecting piece (111) is connected with the auxiliary connecting piece (121) in an interconnected mode, and the electric heating piece (100) is wound to form a hand inserting cavity (101).

2. The electric heater according to claim 1, characterized in that the auxiliary connecting member (121) comprises a first auxiliary connecting member (121a) and a second auxiliary connecting member (121b), the second auxiliary connecting member (121b) is located at a side where the first auxiliary connecting member (121a) is close to the first mounting portion (11), the main connecting member (111) can be alternatively detachably connected with the first auxiliary connecting member (121a) and the second auxiliary connecting member (121b), and the size of the hand insertion cavity (101) formed when the main connecting member (111) is connected with the first auxiliary connecting member (121a) is larger than the size of the hand insertion cavity (101) formed when the main connecting member (111) is connected with the second auxiliary connecting member (121 b).

3. The electric heater according to claim 1, wherein the main connecting member (111) comprises a first main connecting member (111a) and a second main connecting member (111b), the second main connecting member (111b) is located at a side of the first main connecting member (111a) close to the second mounting portion (12), the auxiliary connecting member (121) can be alternatively detachably connected with the first main connecting member (111a) and the second main connecting member (111b), and the size of the hand insertion cavity (101) is larger than the size of the hand insertion cavity (101) when the auxiliary connecting member (121) is connected with the second main connecting member (111 b).

4. The electric heater according to claim 1, characterised in that the main connector (111) and the secondary connector (121) are located on opposite sides of the protective outer casing (10) in the thickness direction.

5. The electric heater according to claim 1, wherein the number of the heat generating sheets (21) is plural, and the plural heat generating sheets (21) are arranged along the axial direction of the hand inserting cavity (101).

6. The electric heater according to claim 1, wherein the power control assembly (22) comprises a circuit board (221), a control button (222), a display (223), and a power interface (224), and the heat generating sheet (21), the control button (222), the display (223), and the power interface (224) are electrically connected to the circuit board (221).

7. The electric heater according to claim 6, wherein the power control assembly (22) further comprises a battery (225), the second mounting portion (12) is provided with a circuit board protection shell (122) and a battery protection shell (123), the battery (225) is electrically connected with the circuit board (221), the control key (222), the display (223) and the power interface (224) are all arranged in the circuit board protection shell (122), one ends of the control key (222), the display (223) and the power interface (224), which are far away from the circuit board (221), are all exposed out of the circuit board protection shell (122), and the battery (225) is arranged in the battery protection shell (123).

8. The electric heater according to claim 7, wherein one end of the circuit board protection shell (122) is capable of rotating relative to the second installation part (12), the second installation part (12) is further provided with a mounting groove (124), and the circuit board protection shell (122) is selectively mounted in the mounting groove (124).

9. The electric heater according to claim 6, wherein the power control assembly (22) further comprises a temperature sensor (226), the temperature sensor (226) is electrically connected to the circuit board (221), and the temperature sensor (226) is disposed in the first mounting portion (11) and contacts with the heat generating sheet (21).

10. The electric heater according to any one of claims 1-9, further comprising a foot cover (30), wherein the foot cover (30) is provided with a pin cavity (301) and a mounting cavity (302) spaced from the pin cavity (301), and the mounting cavity (302) is used for mounting the electric heater (100) in a straight state.

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