CN211382118U - Hand warmer - Google Patents
Hand warmer Download PDFInfo
- Publication number
- CN211382118U CN211382118U CN201921962419.XU CN201921962419U CN211382118U CN 211382118 U CN211382118 U CN 211382118U CN 201921962419 U CN201921962419 U CN 201921962419U CN 211382118 U CN211382118 U CN 211382118U
- Authority
- CN
- China
- Prior art keywords
- battery
- hand warmer
- electric heating
- circuit board
- insulating layer
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Abstract
The utility model discloses a hand warmer, which comprises a columnar shell, a circuit board, an electric heating sheet, a battery and a heat insulation layer, wherein a containing cavity is arranged in the columnar shell, the circuit board, the electric heating sheet, the battery and the heat insulation layer are all arranged in the containing cavity, and the electric heating sheet is electrically connected with the battery through the circuit board; the side of insulating layer parcel battery, insulating layer and battery direct contact, the electrical heating piece sets up between insulating layer and column shell to the inboard direct contact of electrical heating piece and the lateral wall of column shell. This kind of hand warmer's electric heating piece sets up between insulating layer and column shell, and the area of electric heating piece can set up great to it is comparatively even to make the electric heating piece heat when generating heat, can not produce local too high temperature. This kind of hand warmer's electric heating piece and the inboard direct contact of the lateral wall of column shell can not cause the energy waste in the interval region, and energy utilization is higher.
Description
Technical Field
The utility model relates to a hand warmer.
Background
In cold weather, the portable hand warmer is popular with consumers.
The traditional portable hand warmer generally supplies power to the heating sheet through the lithium ion battery carried by the hand warmer, so that heating is realized. The traditional heating sheet is small in area generally, heat is concentrated relatively during heating, and in order to avoid scalding a user, an interval is formed between the heating sheet and a shell, so that partial waste of energy is caused, the energy utilization rate is low, and the user experience is reduced.
SUMMERY OF THE UTILITY MODEL
Therefore, a hand warmer with high energy utilization rate is needed.
A hand warmer comprises a columnar shell, a circuit board, an electric heating sheet, a battery and a heat insulation layer, wherein a containing cavity is formed in the columnar shell, the circuit board, the electric heating sheet, the battery and the heat insulation layer are all arranged in the containing cavity, and the electric heating sheet is electrically connected with the battery through the circuit board;
the side of battery is lived to the insulating layer parcel, the insulating layer with battery direct contact, the electrical heating piece sets up between the insulating layer with the column shell to the electrical heating piece with the inboard direct contact of the lateral wall of column shell.
This kind of hand warmer's electric heating piece sets up between insulating layer and column shell, and the area of electric heating piece can set up great to it is comparatively even to make the electric heating piece heat when generating heat, can not produce local too high temperature. This kind of hand warmer's electric heating piece and the inboard direct contact of the lateral wall of column shell form spaced hand warmer between the shell for traditional heating piece, can not cause the energy waste in the interval region, and energy utilization is higher.
Drawings
Fig. 1 is a schematic structural diagram of a hand warmer according to an embodiment.
Fig. 2 is an exploded view of the hand warmer shown in fig. 1.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention clearer, embodiments of the present invention will be further described below with reference to the accompanying drawings.
The hand warmer shown in fig. 1 and 2 comprises a cylindrical housing 10, a circuit board 20, an electric heating sheet 30, a battery 40, and a heat insulating layer 50.
The cylindrical shell 10 is internally provided with a containing cavity, the circuit board 20, the electric heating sheet 30, the battery 40 and the heat insulation layer 50 are all arranged in the containing cavity, and the electric heating sheet 30 is electrically connected with the battery 40 through the circuit board 20.
The insulation layer 50 wraps the side of the battery 40, the insulation layer 50 is in direct contact with the battery 40, the electric heating sheet 30 is disposed between the insulation layer 50 and the cylindrical casing 10, and the electric heating sheet 30 is in direct contact with the inner side of the side wall of the cylindrical casing 10.
This kind of hand warmer's electric heating plate 30 sets up between insulating layer 50 and column shell 10, and electric heating plate 30's area can set up great to it is comparatively even to make electric heating plate 30 heat when generating heat, can not produce local too high temperature.
This kind of hand warmer's electric heating plate 30 and the inboard direct contact of the lateral wall of column shell 10, for form the spaced hand warmer between the shell of traditional heating plate, can not cause the energy waste in the interval region, energy utilization is higher.
Preferably, the electric heating sheet is wound in a cylindrical shape or a C-shape.
The electric heating sheet is wound into a cylindrical shape or a C shape, so that the area of the electric heating sheet 30 is large, the heat of the electric heating sheet 30 is uniform when the electric heating sheet generates heat, and local over-high temperature cannot be generated.
Preferably, the heat insulating layer 50 has a cylindrical shape.
Specifically, in the present embodiment, the heat insulating layer 50 is a sponge.
In the present embodiment, the columnar case 10 has a columnar shape, with reference to the drawings. In other embodiments, the cylindrical housing 10 may also have an elliptical cylindrical shape or a polygonal cylindrical shape.
In this embodiment, the cylindrical housing 10 is a plastic housing, but in other embodiments, other materials may be selected for the cylindrical housing 10.
Preferably, in the present embodiment, the battery 40 is a cylindrical battery.
Referring to the drawings, in the present embodiment, the circuit board 20 is disposed between one end of the cylindrical case 10 and one end of the battery 40.
Preferably, the battery 40 is a secondary battery. Referring to the drawings, in the present embodiment, an electrical interface 12 for charging and/or discharging is provided at one end of a cylindrical housing 10, and the electrical interface is electrically connected to a battery 40 through a circuit board 20.
In other embodiments, an electrical interface may be provided on the side wall of the cylindrical housing 10.
Specifically, the battery 40 may be a 18650 lithium ion battery or a 21700 lithium ion battery.
Referring to the drawings, in particular, in the embodiment, the electrical interface 12 is a Micro-USB interface for charging and discharging.
In other embodiments, a Type-C interface may be provided as an electrical interface, which may implement both the charging function and the discharging function.
Referring to the drawings, in the present embodiment, an indicator 14 and a switch 16 are disposed at one end of the cylindrical housing 10, the indicator 14 is electrically connected to the circuit board 20, and the switch 16 is connected to the circuit board 20. The indicator light 14 is used for indicating the working state of the hand warmer, and the switch is used for controlling the work of the electric heating plate 30.
In other embodiments, the switch 16 may be disposed on a side wall of the cylindrical housing 10.
The above-mentioned embodiments only represent some embodiments of the present invention, and the description thereof is more specific and detailed, but not to be construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.
Claims (10)
1. A hand warmer is characterized by comprising a cylindrical shell, a circuit board, an electric heating sheet, a battery and a heat insulation layer, wherein a containing cavity is formed in the cylindrical shell, the circuit board, the electric heating sheet, the battery and the heat insulation layer are all arranged in the containing cavity, and the electric heating sheet is electrically connected with the battery through the circuit board;
the side of battery is lived to the insulating layer parcel, the insulating layer with battery direct contact, the electrical heating piece sets up between the insulating layer with the column shell to the electrical heating piece with the inboard direct contact of the lateral wall of column shell.
2. The hand warmer according to claim 1, wherein the electric heating sheet is wound in a cylindrical shape or a C-shape.
3. The hand warmer of claim 2, wherein the thermal insulation layer is cylindrical.
4. The hand warmer of claim 3, wherein the insulating layer is a sponge.
5. The hand warmer of claim 3, wherein the battery is a cylindrical battery.
6. The hand warmer of any one of claims 1-5, wherein the circuit board is disposed between one end of the cylindrical housing and one end of the battery.
7. The hand warmer of claim 6, wherein the battery is a secondary battery, one end of the cylindrical housing is provided with an electrical interface for charging and/or discharging, and the electrical interface is electrically connected with the battery through the circuit board.
8. The hand warmer of claim 7, wherein the electrical interface is a Micro-USB interface or a Type-C interface.
9. The hand warmer of claim 6, wherein an indicator light and a switch are disposed at one end of the cylindrical housing, the indicator light is electrically connected to the circuit board, and the switch is connected to the circuit board.
10. The hand warmer of claim 6, wherein the cylindrical housing is cylindrical, elliptical or polygonal;
the battery is 18650 lithium ion battery or 21700 lithium ion battery.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921962419.XU CN211382118U (en) | 2019-11-13 | 2019-11-13 | Hand warmer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921962419.XU CN211382118U (en) | 2019-11-13 | 2019-11-13 | Hand warmer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211382118U true CN211382118U (en) | 2020-09-01 |
Family
ID=72218239
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921962419.XU Expired - Fee Related CN211382118U (en) | 2019-11-13 | 2019-11-13 | Hand warmer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211382118U (en) |
-
2019
- 2019-11-13 CN CN201921962419.XU patent/CN211382118U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200901 Termination date: 20211113 |