CN219166858U

CN219166858U - Heating element for hot water bag

Info

Publication number: CN219166858U
Application number: CN202222391772.5U
Authority: CN
Inventors: 胡映波
Original assignee: Individual
Current assignee: Individual
Priority date: 2022-09-05
Filing date: 2022-09-05
Publication date: 2023-06-13
Anticipated expiration: 2032-09-05

Abstract

A heating body for a hot water bag comprises a heating body and a fuse; the fuse includes a melt portion and an electrode portion; the heating body is internally provided with a containing cavity which is sealed and isolated from the outside, the melt part of the fuse wire is arranged in the containing cavity in a sealing way, and the electrode part of the fuse wire extends out of the heating body; according to the electric heating water bag, the accommodating cavity is formed in the heating body, and the melt part of the fuse wire is arranged in the accommodating cavity, so that the temperature of the heating body can be quickly transferred to the fuse wire, meanwhile, the temperature of the heating body and the sensed temperature of the fuse wire lock can be ensured to be not greatly different, and the fuse wire is arranged in the heating body, so that the heat of the heating body can be directly conducted to the fuse wire without depending on other mediums, and the condition of dry burning of the heating body in the electric heating water bag can be completely avoided.

Description

Heating element for hot water bag

Technical Field

The utility model relates to the field of heating elements of hot water bags, in particular to a heating element for a hot water bag.

Background

The hot water bag is just a bag with hot water as the name implies, and the modern hot water bag heats the internal medium through an electric heating device, so that the trouble of filling hot water is avoided, and the electric hot water bag is favored by more and more people;

the electric hot-water bag is mainly used for heating a heating element of a medium, the existing electric hot-water bag adopts a mode of double safety of a temperature controller and a fuse wire because of safety, when the medium in the electric hot-water bag reaches a certain temperature, the temperature controller can automatically cut off a circuit to prevent the medium temperature from continuously rising, and when the temperature controller fails to cause the medium temperature to continuously rise above a critical value, the fuse wire can be blown out to prevent potential safety hazards caused by continuously rising the temperature;

however, the problem of the existing electric hot-water bag is that a certain distance is generally reserved between the setting position of the internal fuse wire and the heating element, when the temperature of the heating element is not controlled to continuously rise, the temperature is transmitted to the fuse wire through a medium, the fuse wire can make a corresponding reaction, a certain delay exists in the reaction of the fuse wire, the delay time can lead the temperature of the heating element to rise to dangerous temperature all the time, so that a huge potential safety hazard is caused, and particularly when the medium is not present in the hot-water bag, the fuse wire cannot sense the rise of the temperature of the heating element due to the fact that the distance exists between the fuse wire and the heating element, and the potential safety hazard is caused due to the fact that the fuse wire cannot sense the rise of the temperature of the heating element.

Disclosure of Invention

The utility model provides a heating element for a hot water bag, which aims to overcome the defect that in the prior art, the temperature of a heating element is delayed due to the fact that a gap exists between a fusible link and the heating element in an electric hot water bag.

The technical scheme for solving the technical problems is as follows: a heating body for a hot water bag, comprising:

a heating body;

a fuse comprising a melt portion and an electrode portion;

the heating body is internally provided with a containing cavity which is sealed and isolated from the outside, the melt part of the fuse is arranged in the containing cavity in a sealing way, and the electrode part of the fuse extends out of the heating body.

Still further, the heating body is used for being placed in the hot-water bag as a heating source, the electrode part of the fuse wire is connected with a circuit of the hot-water bag, and when the melt part of the fuse wire is fused, the current supplied to the heating body in the circuit of the hot-water bag is cut off.

Further, the accommodating cavity comprises an opening formed in the surface of the heating body, the melt part of the fuse wire is inserted into the accommodating cavity through the opening and forms embedded fit with the accommodating cavity, and the electrode part of the fuse wire extends out of the heating body through the opening.

Further, the accommodating cavity is filled with heat-conducting glue, and the heat-conducting glue wraps the melt part of the fuse wire.

Still further, the heat-conducting glue is located between the melt portion and the side wall of the accommodating cavity, so that the heat of the heating body is more easily conducted to the melt portion of the fuse, and the heat-conducting glue wraps the outside of the melt portion, so that the fuse can be prevented from displacing relative to the accommodating cavity

Further, the accommodating cavity is filled with epoxy resin, and the opening of the accommodating cavity is blocked by the epoxy resin, so that the accommodating cavity is sealed relative to the outside.

Further, the heating body comprises an electric heating tube and a heat conducting sleeve integrally formed outside the electric heating tube.

Further, the middle part of the heat conducting sleeve is also provided with a heat conducting plate connected with two sides, the heat conducting plate is also convexly provided with a heat conducting boss, the accommodating cavity is arranged in the heat conducting boss, and the opening is positioned on the end face of the heat conducting boss.

Further, the heat conducting sleeve is formed outside the electric heating tube through metal die casting.

The fusing process of the utility model comprises the following steps: the circuit in the hot-water bag supplies current to make the electrothermal tube generate heat, and the heat of electrothermal tube is transferred to the medium in the hot-water bag by the heat conduction cover, and the heat of electrothermal tube still can be transferred to the fuse wire in holding the chamber through the heat conduction cover and the heat conduction board on the heat conduction cover simultaneously, and when the temperature of electrothermal tube is uncontrolled continuously risen until exceeding the fusing critical value of fuse wire, hold the fuse-element part fusing of intracavity fuse wire to cut off the electric current that the hot-water bag circuit supplied the electrothermal tube, make the temperature of electrothermal tube unable to continue rising, also because the non-resettable nature of fuse wire simultaneously, this heat-generating body is scrapped.

The utility model has the beneficial effects that:

1. the accommodating cavity is formed in the heating body, and the melt part of the fuse wire is arranged in the accommodating cavity, so that the temperature of the heating body can be quickly transferred to the fuse wire, meanwhile, the temperature of the heating body and the sensed temperature of the fuse wire lock can be ensured to be not greatly different, and the fuse wire is arranged in the heating body, so that the heat of the heating body can be directly conducted to the fuse wire without depending on other mediums, and the condition of dry burning of the heating body in the electric hot water bag can be completely avoided;

2. the heat conducting plate and the heat conducting boss are further arranged on the heat conducting sleeve, the accommodating cavity is formed in the heat conducting boss, heat of the heating body can be rapidly transferred to the accommodating cavity, and the side wall of the accommodating cavity is connected with the melt part of the fuse wire through the heat conducting glue due to the fact that the heat conducting glue is filled in the accommodating cavity, so that the temperature transferred to the accommodating cavity can be rapidly transferred to the fuse wire through the heat conducting glue under the condition of small loss, and the fuse wire can conveniently and rapidly react;

3. the heat conduction sleeve of the heating body is formed by metal die casting outside the electric heating tube, so that an integral body is formed between the electric heating tube and the heat conduction tube, heat of the electric heating tube is ensured to be better transmitted through the heat conduction tube, heat loss can be effectively reduced, and the fuse can be enabled to sense the temperature rise of the electric heating tube more quickly.

Drawings

Fig. 1 is a schematic structural diagram of a first embodiment of the present utility model.

Fig. 2 is an exploded view of a first embodiment of the present utility model.

Fig. 3 is a cross-sectional view of a first embodiment of the utility model.

Fig. 4 is an enlarged schematic view at a in fig. 3.

Fig. 5 is a schematic structural diagram of a second embodiment of the present utility model.

Detailed Description

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

It will be understood that, although the terms upper, middle, lower, top, end, etc. may be used herein to describe various elements, these elements should not be limited by these terms. These terms are only used to distinguish one element from another for ease of understanding and are not used to define any directional or sequential limitation.

Example 1

A heating body for a hot water bag, as shown in connection with fig. 1 to 4, includes a heating body 1 and a fuse 2; the fuse 2 comprises a melt portion 3 and an electrode portion 4; the heating body 1 is internally provided with a containing cavity 5 which is sealed and isolated from the outside, the melt part 3 of the fuse wire 2 is arranged in the containing cavity 5 in a sealing way, and the electrode part 4 of the fuse wire 2 extends out of the heating body 1.

In this embodiment, the heating body 1 is used to be placed in a hot water bag as a heating source, the electrode portion 4 of the fuse 2 is connected to a circuit of the hot water bag, and when the melt portion 3 of the fuse 2 is fused, the current supplied to the heating body 1 in the circuit of the hot water bag is cut off.

In this embodiment, the accommodating cavity 5 includes an opening 6 formed on the surface of the heating body 1, the melt portion 3 of the fuse 2 is inserted into the accommodating cavity 5 through the opening 6 and forms an embedded fit with the accommodating cavity 5, and the electrode portion 4 of the fuse 2 extends out of the heating body 1 through the opening 6.

In this embodiment, the accommodating cavity is filled with a heat-conducting glue 7, and the heat-conducting glue 7 wraps the melt portion 3 of the fuse link 2.

In this embodiment, the heat-conducting glue 7 is located between the melt portion 3 and the side wall of the accommodating cavity 5, so that the heat of the heating body 1 is more easily conducted to the melt portion 3 of the fuse 2, and the heat-conducting glue 7 is wrapped outside the melt portion 3, so as to prevent the fuse 2 from displacing relative to the accommodating cavity 5

In this embodiment, the accommodating cavity 5 is further filled with an epoxy resin 8, and the opening 6 of the accommodating cavity is blocked by the epoxy resin 8, so that the accommodating cavity 5 is sealed from the outside.

In this embodiment, the heating body 1 includes an electrothermal tube 9 and a heat conducting sleeve 10 integrally formed outside the electrothermal tube 9.

In this embodiment, the middle part of the heat conducting sleeve 10 is further provided with a heat conducting plate 11 connected with two sides, a heat conducting boss 12 is further protruding on the heat conducting plate 11, the accommodating cavity 5 is arranged in the heat conducting boss 12, and the opening 6 is located on the end face of the heat conducting boss 12.

In this embodiment, the electrothermal tube 9 is U-shaped, and the heat-conducting boss 12 is located between two sides of the U-shaped electrothermal tube 9.

In this embodiment, two heat conducting ribs 13 are protruding on two sides of the heat conducting plate 11, two heat conducting ribs 13 on the same side are symmetrically disposed below the heat conducting boss 12, one end of the heat conducting rib 13 is connected to the side edge of the lower end of the heat conducting boss 12, and the other end of the heat conducting rib 13 is connected to a position near the bottom of the U-shaped electric heating tube 9.

In this embodiment, the heat conducting sleeve 10 is integrally formed outside the electrothermal tube 9 by metal die casting.

In this embodiment, the heat conducting sleeve 10 is made of aluminum metal.

Fusing process of the present embodiment: the electric circuit in the hot-water bag supplies current to make the electrothermal tube 9 generate heat, the heat of the electrothermal tube 9 is transferred to the medium in the hot-water bag by the heat conducting sleeve 10, meanwhile, the heat of the electrothermal tube 9 is also transferred to the fuse 2 in the accommodating cavity through the heat conducting sleeve 10 and the heat conducting plate 11 on the heat conducting sleeve 10, and when the temperature of the electrothermal tube 9 is not controlled to continuously rise until exceeding the fusing critical value of the fuse 2, the fused part 3 of the fuse 2 in the accommodating cavity fuses, so that the current supplied to the electrothermal tube 9 by the hot-water bag circuit is cut off, the temperature of the electrothermal tube 9 cannot be continuously raised, and meanwhile, the heating body 1 is scrapped due to the non-resettable property of the fuse 2.

The advantages of this embodiment are: the fuse is arranged on the heating body in a built-in manner, so that the fuse can be ensured to react rapidly when the heating body is out of control and temperature rise is carried out, potential safety hazards are avoided, and meanwhile, as other mediums are not needed to conduct heat to the fuse, the condition of dry burning is completely eradicated.

Example 2

In another embodiment shown in fig. 5, the main differences compared to the above embodiment 1 are that: in this embodiment, only one heat-conducting rib 13 is protruding on both sides of the heat-conducting plate 11, and the heat-conducting rib 13 is directly connected to the lower end of the heat-conducting boss 12 and the bottom of the electrothermal tube 9.

In this embodiment, the remaining structure and functions are the same as those of embodiment 1, and are not described here again.

The advantages of this embodiment are: compared with the embodiment 1, the heat conducting ribs are directly connected to the lower ends of the heat conducting bosses and the bottom of the electric heating tube, so that heat is conducted more rapidly, the fuse wire embedded in the heat conducting bosses can sense the temperature of the heating body and react more rapidly, and the material of a part of the heat conducting ribs can be omitted, so that the cost of the embodiment is lower.

The present embodiment is only for explanation of the present utility model and is not to be construed as limiting the present utility model, and modifications to the present embodiment, which may not creatively contribute to the present utility model as required by those skilled in the art after reading the present specification, are all protected by patent laws within the scope of claims of the present utility model.

Claims

1. A heating body for a hot water bag, comprising:

a heating element body (1);

a fuse link (2), the fuse link (2) comprising a melt portion (3) and an electrode portion (4);

the method is characterized in that: the heating element body (1) is internally provided with a containing cavity (5) which is sealed and isolated with the outside, the melt part (3) of the fuse link (2) is arranged in the containing cavity (5) in a sealing way, and the electrode part (4) of the fuse link (2) extends out of the heating element body (1).

2. A heating body for a hot water bag according to claim 1, wherein: the accommodating cavity (5) comprises an opening (6) formed in the surface of the heating body (1), the melt part (3) of the fuse wire (2) is inserted into the accommodating cavity (5) through the opening (6) and is in embedded fit with the accommodating cavity (5), and the electrode part (4) of the fuse wire (2) penetrates through the opening (6) and stretches out of the heating body (1).

3. A heating body for a hot water bag according to claim 1, wherein: the accommodating cavity (5) is filled with heat-conducting glue (7), and the heat-conducting glue (7) wraps the melt part (3) of the fuse wire (2).

4. A heating body for a hot water bag according to claim 2, wherein: the accommodating cavity (5) is also filled with epoxy resin (8), and the opening (6) of the accommodating cavity (5) is blocked by the epoxy resin (8) so that the accommodating cavity (5) is sealed relative to the outside.

5. A heating body for a hot water bag according to claim 2, wherein: the heating body (1) comprises an electric heating tube (9) and a heat conducting sleeve (10) which is integrally formed outside the electric heating tube (9).

6. A heating body for a hot water bag according to claim 5, wherein: the middle part of the heat conduction sleeve (10) is also provided with a heat conduction plate (11) connected with two sides, the heat conduction plate (11) is also convexly provided with a heat conduction boss (12), the accommodating cavity (5) is arranged in the heat conduction boss (12), and the opening (6) is positioned on the end face of the heat conduction boss (12).

7. A heating body for a hot water bag according to claim 5, wherein: the heat conducting sleeve (10) is formed outside the electric heating tube (9) through metal die casting.