CN210250238U

CN210250238U - Electromagnetic induction heating type hand warmer

Info

Publication number: CN210250238U
Application number: CN201920847911.6U
Authority: CN
Inventors: 李中和
Original assignee: Shenzhen Aoolif Technology Co ltd
Current assignee: Shenzhen Aoolif Technology Co ltd
Priority date: 2019-06-06
Filing date: 2019-06-06
Publication date: 2020-04-07
Anticipated expiration: 2029-06-06

Abstract

The utility model belongs to the technical field of hand warmers, and discloses an electromagnetic induction heating type hand warmer, which comprises a charging seat and a hand warmer body, wherein the hand warmer body comprises an outer sleeve and an inner container, the outer sleeve is made of waterproof flannelette, the inner container is made of waterproof latex, and the inner container is filled with filling liquid, the charging seat is internally provided with a controller and an electromagnetic coil, the electromagnetic coil is positioned above the controller, the inner wall of the inner container is provided with a flexible metal net, the flexible metal net is equidistantly provided with a plurality of flexible heat conducting ropes, and the flexible heat conducting ropes are all wrapped in the filling liquid, the utility model realizes the heating operation of the hand warmer body by utilizing the electromagnetic induction mode, has the advantages of higher safety and faster heating speed, and utilizes the flexible metal net to form a heating source inside the hand warmer body, the flexible metal mesh is uniformly distributed, and the heating uniformity of the filling liquid is effectively improved.

Description

Electromagnetic induction heating type hand warmer

Technical Field

The utility model belongs to the technical field of the hand warmer, concretely relates to electromagnetic induction adds hot type hand warmer.

Background

The hand warmer is an automatic warming health care product developed by applying physical and chemical principles, most of the existing hand warmers in the market generate heat by electrifying a resistance wire, so that the temperature of filling liquid in the hand warmer is increased, and the effect of warming by heating is achieved;

in the hand warmer, a certain mounting base is required to be set for mounting the resistance wire when the resistance wire is mounted, on one hand, the resistance wire is used for fixing the resistance wire, and on the other hand, the resistance wire is convenient to electrify, specifically, as shown in fig. 1, when the hand warmer is heated under the structure, the conductive structure is in direct contact with the filling liquid, certain potential safety hazards exist, in addition, in the heating process, the filling liquid close to the resistance wire is rapidly heated, and the filling liquid far away from the resistance wire is slowly heated, so that the problem that the whole hand warmer is unevenly heated in the heating process is caused;

in addition, when the existing hand warmer is connected with a charger, the hand warmer is connected in a plugging mode, excessive abrasion easily occurs in the repeated plugging process, so that potential safety hazards such as poor contact or electric leakage are caused, the charger is also connected with a household power supply in a plugging mode, and if the charger is not timely plugged after charging is finished, the charger is in a continuous conductive state with the household power supply, so that the problem of accelerated aging of the charger is easily caused.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide an electromagnetic induction adds hot type hand warmer to solve current hand warmer when using exist be heated the inequality and its body and the charger all have the problem of great potential safety hazard.

In order to achieve the above object, the utility model provides a following technical scheme:

1. an electromagnetic induction heating type hand warmer comprises a charging seat and a hand warmer body, wherein the hand warmer body comprises an outer sleeve and an inner container, the outer sleeve is made of waterproof flannelette, the inner container is made of waterproof latex, filling liquid is filled in the inner container, a controller and an electromagnetic coil are installed in the charging seat, the electromagnetic coil is located above the controller, a flexible metal net is arranged on the inner wall of the inner container, a plurality of flexible heat conduction ropes are equidistantly arranged in the flexible metal net, and the flexible heat conduction ropes are all wrapped in the filling liquid;

the flexible metal net is formed by weaving flexible aluminum wires, and the flexible metal net is connected with the inner wall of the inner container in a bonding mode;

the flexible heat conducting rope is made of flexible ceramic fibers, and two ends of the flexible heat conducting rope and the flexible metal net are fixed in a brazing mode.

2. Based on above-mentioned structure, still include the heat conduction insulator, the cross-sectional shape of heat conduction insulator is the U style of calligraphy, and the top of charging seat is located to the heat conduction insulator cover, hand warmer body is placed on the top surface of heat conduction insulator.

Preferably, two guide posts are symmetrically welded at the bottom end of the heat conducting porcelain sleeve, the bottom ends of the two guide posts penetrate through the charging seat, a limiting ring is sleeved on the guide posts, a rubber spring is welded between the limiting ring and the inner wall of the charging seat, and the guide posts penetrate through the rubber spring;

and a conductive switch is arranged at the position of one side of the controller in the charging seat, and one of the guide posts is pressed on the conductive switch.

Preferably, a temperature sensor is embedded into the top end of the heat conducting porcelain bushing, a conducting wire of the temperature sensor is conducted back to the inside of the charging seat through another guide post, and a temperature control switch is installed at a position, located on the other side of the controller, inside the charging seat.

Preferably, the positions of the top end of the heat-conducting porcelain sleeve around the temperature sensor are provided with anti-skid layers, and each anti-skid layer is composed of a plurality of arc-shaped protrusions.

Compared with the prior art, the utility model, following beneficial effect has:

(1) the utility model discloses utilize the mode of electromagnetic induction to realize the heating operation of hand warmer body, compare and traditional resistance wire heating has the advantage that the security is higher, rate of heating is faster, and utilize flexible metal mesh to form the heating source in this hand warmer body, flexible metal mesh distributes evenly, effectively improves the homogeneity that filling liquid is heated on the one hand, and on the other hand guarantees that this hand warmer can form the heating no matter in what kind of placement state;

in addition, the inside equidistance that still is equipped with a plurality of flexible heat conduction rope that is equipped with of flexible metal mesh, flexible heat conduction rope is made by ceramic fiber, has good heat conductivity for the produced heat of flexible metal mesh can circulate to the filling liquid of intermediate position department fast on, thereby further improve the even effect when this hand warmer heats.

(2) The utility model discloses a atress compresses tightly the mode and realizes that the circular telegram of charging seat starts, need not to carry on in this process and warm hand treasured and charging seat, charging seat and family power between pull out and insert, easy operation, and the security is higher, and under the restriction of above-mentioned charging mode, when guaranteeing that warm hand treasured does not place on the charging seat, the charging seat is in the complete outage state, avoid long-term charging seat and power switch-on and have the potential safety hazard of ageing electric leakage, thereby effectively improve the safety in utilization of this charging seat;

in addition, the pressed heat conducting porcelain sleeve has a U-shaped section, so that the problem that other objects cannot be clamped between the heat conducting porcelain sleeve and the charging seat to cause incapability of charging is effectively avoided.

Drawings

FIG. 1 is a schematic structural diagram of a conventional hand warmer;

FIG. 2 is a schematic structural view of the present invention;

FIG. 3 is a perspective view of the middle heat conducting porcelain bushing of the present invention;

FIG. 4 is an enlarged view taken at A in FIG. 1;

fig. 5 is a schematic structural view of the hand warmer body of the present invention;

fig. 6 is a circuit block diagram of the present invention;

in the figure: 1-charging seat, 11-conductive switch, 12-controller, 13-electromagnetic coil, 14-temperature control switch, 2-heat conducting porcelain bushing, 21-temperature sensor, 22-guide post, 23-anti-slip layer, 24-spacing ring, 25-rubber spring, 3-hand warmer body, 31-filling liquid, 32-outer sleeve, 33-inner container, 34-flexible metal net, 35-flexible heat conducting rope.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

1. As shown in fig. 2 and 5, an electromagnetic induction heating hand warmer comprises a charging seat 1 and a hand warmer body 3, wherein the hand warmer body 3 comprises an outer cover 32 and an inner container 33, the outer cover 32 is made of waterproof flannelette, the inner container 33 is made of waterproof latex, filling liquid 31 is filled in the inner container 33, a controller 12 and an electromagnetic coil 13 are installed in the charging seat 1, the electromagnetic coil 13 is located above the controller 12, a flexible metal mesh 34 is arranged on the inner wall of the inner container 33, a plurality of flexible heat conducting ropes 35 are equidistantly arranged in the flexible metal mesh 34, and the plurality of flexible heat conducting ropes 35 are all wrapped in the filling liquid 31;

the flexible metal net 34 is woven by flexible aluminum wires, and the flexible metal net 34 is connected with the inner wall of the inner container 33 in a bonding mode;

the flexible heat conducting rope 35 is made of flexible ceramic fibers, and both ends of the flexible heat conducting rope 35 and the flexible metal mesh 34 are fixed by brazing.

Specifically, the method comprises the following steps: the charging stand 1 is connected with a household power supply (220V) through a plug, so that the electromagnetic coil 13 is electrified, under the principle of electromagnetic induction, the electromagnetic coil 13 generates an induction magnetic field, so that the flexible metal net 34 positioned in the inner container 33 generates eddy current and generates heat, the periphery of the filling liquid 31 is uniformly heated, meanwhile, the flexible heat conducting rope 35 has good heat conduction, partial heat can be conducted to the middle part of the filling liquid 31, and the heating uniformity of the filling liquid 31 is further improved.

2. As shown in fig. 3-4, based on the above structure, the portable hand warmer further comprises a heat conducting porcelain sleeve 2, wherein the cross section of the heat conducting porcelain sleeve 2 is U-shaped, the heat conducting porcelain sleeve 2 is sleeved on the top end of the charging base 1, and the hand warmer body 3 is placed on the top surface of the heat conducting porcelain sleeve 2.

In this embodiment, preferably, two guide pillars 22 are symmetrically welded to the bottom end of the heat conducting porcelain bushing 2, the bottom ends of the two guide pillars 22 both penetrate through the charging base 1, a limiting ring 24 is sleeved on the guide pillars 22, a rubber spring 25 is welded between the limiting ring 24 and the inner wall of the charging base 1, and the guide pillars 22 penetrate through the rubber spring 25;

the conductive switch 11 is installed at a position inside the charging stand 1 at one side of the controller 12, and one of the guide posts 22 is pressed against the conductive switch 11.

Specifically, the method comprises the following steps: when the hand warmer body 3 is placed on the heat conducting porcelain bushing 2, the heat conducting porcelain bushing 2 moves downwards under the action of gravity, meanwhile, the limiting ring 24 on the guide post 22 pulls the rubber spring 25 to extend, and one of the guide posts 22 gradually compresses the conductive switch 11, so that the conductive switch 11 is closed to ensure that the integral charging seat 1 is in a power-on state, and then the controller 12 controls corresponding electric elements to start and work;

when the hand warmer body 3 is not placed, the guide post 22 and the conductive switch 11 are separated by the limitation of the rubber spring 25, so that the conductive switch 11 is disconnected, and the whole charging seat 1 is also in a power-off state.

In this embodiment, preferably, a temperature sensor 21 is embedded in the top end of the heat conducting porcelain bushing 2, and the electric lead of the temperature sensor 21 is conducted back to the inside of the charging base 1 through another guide pillar 22, and a temperature control switch 14 is installed at a position inside the charging base 1, which is located at the other side of the controller 12.

Specifically, the method comprises the following steps: charging seat 1 is accomplishing the circular telegram and is starting the back, and temperature detect switch 14 and temperature sensor 21 are started equally, and wherein temperature sensor 21 forms the contact with hand warmer body 3, and real-time detection hand warmer body 3's temperature when detecting the temperature and being higher than when predetermineeing the temperature, is controlled the disconnection of temperature detect switch 14 by controller 12, and solenoid 13 forms the outage this moment for charging seat 1 stops the heating of charging to hand warmer body 3, in order to avoid appearing overheated phenomenon.

In this embodiment, preferably, the position department that the heat conduction insulator 2 top is located around temperature sensor 21 all is equipped with skid resistant course 23, and skid resistant course 23 comprises a plurality of arc protrusion to this stiction when effectively improving hand warmer body 3 and placing, thereby avoid hand warmer body 3 to follow landing on heat conduction insulator 2.

3. As shown in fig. 6, the internal circuit of the charging dock 1 is connected as follows: the electromagnetic coil 13 is electrically connected with the temperature control switch 14, the temperature control switch 14 and the temperature sensor 21 are both electrically connected with the controller 12, and the controller 12 is electrically connected with the conductive switch 11;

the utility model discloses a theory of operation and use flow: when the hand warmer body 3 is charged and heated, the hand warmer body 3 is placed at the top end of the heat conducting porcelain sleeve 2, the heat conducting porcelain sleeve 2 moves downwards under the action of gravity to drive the guide posts 22 to move downwards synchronously, at the moment, the limiting ring 24 pulls the rubber spring 25 to extend, meanwhile, one guide post 22 presses the conductive switch 11 to enable the controller 12 to be electrified, then the controller 12 controls the electromagnetic coil 13, the temperature control switch 14 and the temperature sensor 21 to be started, the electromagnetic coil 13 generates an induction magnetic field under the action of alternating current, so that the flexible metal net 34 forms eddy current and generates heat, the filling liquid 31 is uniformly heated by matching with the flexible heat conducting rope 35, the temperature sensor 21 detects the temperature of the hand warmer body 3 in real time, and when the detected temperature reaches a preset temperature, the controller 12 controls the temperature control switch 14 to be switched off to stop heating;

when the hand warmer body 3 after heating is taken down, the rubber spring 25 rebounds, so that the structure is reset, and the conductive switch 11 is switched off.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides an electromagnetic induction adds hot type hand warmer, includes charging seat (1) and hand warmer body (3), hand warmer body (3) are including overcoat (32) and inner bag (33), overcoat (32) are made by waterproof cotton flannel, inner bag (33) are made by waterproof latex, and the inside packing of inner bag (33) has filling liquid (31), its characterized in that: a controller (12) and an electromagnetic coil (13) are installed inside the charging seat (1), the electromagnetic coil (13) is located above the controller (12), a flexible metal net (34) is arranged on the inner wall of the inner container (33), a plurality of flexible heat conducting ropes (35) are arranged inside the flexible metal net (34) at equal intervals, and the plurality of flexible heat conducting ropes (35) are wrapped inside the filling liquid (31);

the flexible metal net (34) is formed by weaving flexible aluminum wires, and the flexible metal net (34) is connected with the inner wall of the inner container (33) in a bonding mode;

the flexible heat conducting rope (35) is made of flexible ceramic fibers, and two ends of the flexible heat conducting rope (35) and the flexible metal mesh (34) are fixed in a brazing mode.

2. The electromagnetic induction heating type hand warmer according to claim 1, wherein: still include heat conduction porcelain bushing (2), the cross-sectional shape of heat conduction porcelain bushing (2) is the U style of calligraphy, and heat conduction porcelain bushing (2) cover locates the top of charging seat (1), hand warmer body (3) are placed on the top surface of heat conduction porcelain bushing (2).

3. The electromagnetic induction heating type hand warmer according to claim 2, wherein: the bottom end of the heat-conducting porcelain sleeve (2) is symmetrically welded with two guide posts (22), the bottom ends of the two guide posts (22) penetrate through the charging seat (1), the guide posts (22) are sleeved with limit rings (24), rubber springs (25) are welded between the limit rings (24) and the inner wall of the charging seat (1), and the guide posts (22) penetrate through the rubber springs (25);

the charging seat (1) is internally provided with a conductive switch (11) at a position on one side of the controller (12), and one guide pillar (22) is pressed on the conductive switch (11).

4. An electromagnetic induction heating type hand warmer according to claim 3, characterized in that: the top end of the heat conduction porcelain sleeve (2) is embedded with a temperature sensor (21), a conducting wire of the temperature sensor (21) is conducted back to the inside of the charging seat (1) through another guide post (22), and a temperature control switch (14) is installed at the position, located on the other side of the controller (12), in the charging seat (1).

5. The electromagnetic induction heating type hand warmer according to claim 4, wherein: the position department that heat conduction insulator (2) top is located around temperature sensor (21) all is equipped with skid resistant course (23), and skid resistant course (23) comprise a plurality of arc-shaped protrusion.