CN202313897U

CN202313897U - Hand warmer with heat exchanger

Info

Publication number: CN202313897U
Application number: CN2011204607960U
Authority: CN
Inventors: 徐远水
Original assignee: FOSHAN SHUNDE DISTRICT MEIMEI INNOVATION ELECTRICAL APPLIANCE Co Ltd
Current assignee: FOSHAN SHUNDE DISTRICT MEIMEI INNOVATION ELECTRICAL APPLIANCE Co Ltd
Priority date: 2011-11-19
Filing date: 2011-11-19
Publication date: 2012-07-11
Anticipated expiration: 2021-11-19

Abstract

The utility model discloses a hand warmer with a heat exchanger. The hand warmer comprises a bag body, and a bag cavity capable of storing a liquid is arranged in the bag body. The hand warmer is characterized in that the heat exchanger is arranged outside the bag cavity, a heating cavity is arranged in the heat exchanger, the inlet and outlet of the heating cavity are respectively communicated with the bag cavity, and a water pump is arranged between the heating cavity and the bag cavity. According to the hand warmer, as the heat exchanger is arranged outside the bag cavity and the water pump is arranged, the liquid in the bag cavity can flow back into the bag cavity after being pumped into the heat exchanger and heated, and with the circulation, the effect of heating outside the bag cavity is realized, thereby avoiding various safety problems caused by the fact that an electric heating element is arranged in the bag cavity; furthermore, the bag cavity is also used for storing the liquid, even if the heat exchanger is damaged, the bag body can still be used; moreover, the same heat exchanger can be used for heating multiple different bag bodies, therefore, in production of a factory, only one heat exchanger needs to be equipped for multiple bag bodies in accordance with household use.

Description

The hand warmer of heat exchanger

Technical field

This utility model relates to the hand warmer technical field, especially is a kind of hand warmer of heat exchanger.

Background technology

Existing hand warmer, that is: electric warming bag, its structure comprises bag, and the marsupial chamber is set in the bag, and a bag intracavity stores liquid, and electric heating body places liquid, that is: and electric heating body is built in a bag intracavity, so that directly the liquid of bag intracavity is heated.During the electric warming bag heating work, when liquid is heated to set temperature value, the power supply of electric heating body is broken off in the temperature controller action, and electric heating body is quit work, and at this moment, hand warmer can supply heating to use.

Yet still there is following weak point in the hand warmer of above-mentioned traditional in-built electrical calandria: (1) is built in a bag intracavity in view of electric heating body; Heated liquid can produce gas constantly expands a bag chamber; For preventing a bag intracavity (gas) overvoltage explosion, traditional hand warmer can be set up explosion-proof mechanism on bag, as: on the electric heating body surface, temperature controller is installed; Or, on the bag wall, set up the air bleeding valve of overvoltage etc.; Yet, above-mentioned these explosion-proof mechanisms, if run into damage, as: temperature controller lost efficacy; Air bleeding valve obstructions etc. all can cause to add the hand warmer bag wall of pining for, and because of the overvoltage explosion, high-temperature fluid splashes out; So there is bigger potential safety hazard all the time in the hand warmer of in-built electrical calandria; (2) hand warmer of in-built electrical calandria tends to because explosion-proof mechanism damages, and causes and can not use, thereby has shortened the service life of product; (3) be built in the hand warmer in view of electric heating body, therefore, electric heating body is on-dismountable, can't realize that an electric heating body can be to the effect of a plurality of bag heating; (4) electric heating body of hand warmer bag intracavity need be immersed in the liquid, that is: liquid can not be too small, otherwise, cause dry combustion method easily, certainly, the liquid of bag intracavity is also obstructed too much, and therefore, water filling has certain specification requirement to the user to hand warmer.

The utility model content

The purpose of this utility model is to overcome all deficiencies that above-mentioned prior art exists, and a kind of hand warmer of heat exchanger is provided, and it has simple and reasonable for structure; Through heater being placed on a bag chamber, for this reason, the bag intracavity need not to be provided with heater; Both convenient the use improved security of products again, its longer service life; Water filling is easy, and, the advantage that the applicable a plurality of empty bags of heat exchanger (being marked with liquid in the bag) heating is used.

The purpose of this utility model is to realize like this.

A kind of hand warmer of heat exchanger; Comprise bag, but be provided with the bag chamber of storaging liquid in the bag, it is characterized in that; Said bag chamber is outside equipped with heat exchanger; Be provided with heating chamber in the heat exchanger, the entrance and exit of heating chamber is connected with the bag chamber respectively, also is provided with water pump between said heating chamber and the bag chamber; This hand warmer through heat exchanger (being equivalent to calandria) is set, and cooperates water pump outside the bag chamber; After the liquid suction heat exchanger heats with the bag intracavity; Flow back to a bag intracavity again, so circulation realizes the effect of heating outside the bag chamber; Avoid at the bag intracavity because of electric heating body is set, and all safety problems that exist; And only as the usefulness of storaging liquid, even heat exchanger damages, bag still can use in the effect in bag chamber; Have, same heat exchanger can be to a plurality of different bag heating again, and producer can be in response to family use when producing, and a plurality of bags are only joined a heat exchanger use and got final product; More have plenty of, this external calandria, it is too small because of injecting amount of liquid to need not worry, causes dry combustion method picture at present, and therefore, its water flood operations is simple and easy.

The purpose of this utility model can also adopt following technical measures to solve:

As a kind of embodiment of heat exchanger wherein, said heat exchanger can be an independent case; Heating chamber is arranged in the housing; Surface of shell is provided with two interfaces respectively as the entrance and exit of heating chamber, and bag is provided with two connecting ports corresponding with two interfaces of surface of shell, is separately installed with check (non-return) valve on two connecting ports; After preventing that heat exchanger from transfering to, two connecting port trickles on bag surface; This external removable heat exchanger can be convenient for people to carry and use, and especially is fit to the needs that a heat exchanger uses a plurality of different bag heating.

Said heat exchanger also can be to be installed on the bag, and the entrance and exit of its heating chamber is connected with the bag chamber respectively; That is: heat exchanger is arranged on the bag, as: heat exchanger is installed on the mount pad of bag outer wall, this mode; Heat exchanger can break out, also can not break, in view of it is arranged on the mount pad of bag outer wall; So daily use does not break, but it can utilize water pump equally; Liquid (water) suction of bag intracavity to heat exchanger heats, is flow back to a bag intracavity again, and so circulation gets final product.

As scheme more specifically, said water pump is installed on the heat exchanger, and places the inlet or the exit of heating chamber; Certainly, water pump also can be contained on the heating chamber, draws water as long as can realize circulation.

Said heat exchanger is the duct type heater, and duct type heater inner chamber is as the heating chamber of water flowing, and its pipe outer wall is provided with conductive heating layer, and water pump is arranged on the inlet or the exit of duct type heater.As: the quartz glass pipe heater, it is a pipe outer wall metal plated heating layer (conductive exothermal), tube cavity water flowing (being equivalent to heating chamber) can be by heating rapidly through the water of tube cavity.

Electric heating tube or heating wire or electric heating lamina membranacea are installed in the heating chamber of said heat exchanger, that is: can be through the liquid of heating chamber by electric heating tube, heating wire or electric heating lamina membranacea direct heating.

Also be provided with temperature controller and/or fuse on the said heat exchanger, both can have monitored, can prevent that again heat exchanger temperature is too high, play a protective role through the temperature of liquid in the heating chamber.

As better embodiment, two connecting port places of said bag also are connected with microswitch, and microswitch and water pump, heat exchanger electrically connect; That is: have only two connecting ports of heat exchanger and bag to plug into fully, at this moment, water pump and heat exchanger ability energising work, if heat exchanger is pulled out, water pump and heat exchanger be power-off protection automatically.

Also have water filling port on the said bag, water filling port is provided with sealing-plug, and people can be free toward the water filling of bag intracavity.

Also be provided with anti-reversing heater switch on the said heat exchanger, anti-reversing heater switch and water pump electrically connect; If heat exchanger is the other way around, water pump can't draw water, and the heating of also can't switching on of placed in-line heat exchanger is heated to prevent the heat exchanger reversing, especially is can prevent because of water pump draws water the other way around, and the defective that causes.

The beneficial effect of this utility model is following.

(1) this hand warmer through outside the bag chamber, heat exchanger being set, and cooperates water pump; After the liquid suction heat exchanger heats with the bag intracavity, flow back to a bag intracavity again, so circulation; Realize the effect of the outer heating in bag chamber, avoid at the bag intracavity because of electric heating body is set, and all safety problems of existence.

(2) in view of the effect in bag chamber only as the usefulness of storaging liquid, even heat exchanger damages, bag still can use.

(3) have, same heat exchanger can be to a plurality of different bag heating again, and producer can be in response to family use when producing, and a plurality of bags are only joined a heat exchanger use and got final product.

(4) this kind of hand warmer, its calandria is an external, and it is too small because of liquid to need not worry, causes dry combustion method picture at present, and therefore, its water flood operations is simple and easy; And, add anti-reversing heater switch on the heat exchanger of hand warmer, can prevent effectively that heat exchanger from using under the reversing state.

Description of drawings

Fig. 1 is the hand warmer operation principle sketch map of this utility model heat exchanger.

Fig. 2 is hand warmer embodiment one sketch map of this utility model heat exchanger.

Fig. 3 is the heat exchanger enlarged diagram of Fig. 2.

Fig. 4 is hand warmer embodiment two sketch maps of this utility model heat exchanger.

Fig. 5 is the heat exchanger enlarged diagram of Fig. 4.

The specific embodiment

Below in conjunction with accompanying drawing and embodiment this utility model is further described.

First embodiment

To shown in Figure 3, a kind of hand warmer of heat exchanger comprises bag 1 like Fig. 1; But be provided with the bag chamber 2 of storaging liquid in the bag 1; It is characterized in that said bag chamber 2 is outside equipped with heat exchanger 3, is provided with heating chamber 4 in the heat exchanger 3; The inlet 41 of heating chamber 4 is connected with bag chamber 2 respectively with outlet 42, also is provided with water pump 5 between said heating chamber 4 and the bag chamber 2.

Shown in Figure 2; Said heat exchanger 3 is an independent case; Heating chamber 4 is arranged in the housing, and surface of shell is provided with two interfaces respectively as the inlet 41 and outlet 42 of heating chamber, and bag 1 is provided with two connecting

ports

6,7 corresponding with two interfaces of surface of shell; Be separately installed with check (non-return) valve 8 on two connecting

ports

6,7, flow out to prevent the liquid in the connecting

port

6,7.

Said water pump 5 is installed on the heat exchanger 3, and places the inlet 41 of heating chamber 4 or export 42 places.

Wherein, said heat exchanger 3 can be a Glass tube heater, and the Glass tube heater inner chamber is as heating chamber 4, and water pump 5 is arranged on the inlet 41 of Glass tube heater or exports 42 places.

In addition, also be provided with temperature controller and/or fuse 10 on the said heat exchanger 3.Two connecting ports, 6,7 places of said bag 1 also are connected with microswitch 12, and microswitch 12 electrically connects with water pump 5, heat exchanger 3.

Also have water filling port 13 on the said bag 1, water filling port 13 is provided with sealing-plug 14.

Also be provided with anti-reversing heater switch 15 on the said heat exchanger 3, anti-reversing heater switch 15 electrically connects with water pump 5.

The bag of said bag 1 is provided with book layer (as: certain of bag wall is provided with very book) on the wall, so that the bag internal gas pressure is when excessive, through the aerofluxus that pops of this book layer, to realize certain safety.

Operation principle: when hand warmer heats, two connecting

ports

6,7, also insertion on the bag outer walls are aimed in the inlet 41 and the outlet 42 of heat exchanger 3, touch microswitch 12 this moment; The power connection of water pump 5 and heat exchanger 3, water pump is with in the warp of the liquid (water) in the bag chamber 2 inlet 41 suction heating chambers 4, after rapid heating; Flow back in bag chamber 2 by outlet 42, so circulation is till the suitable heating of bag temperature is used; Whole process need not to worry the bag expansion explosion, and its safety is preferable.

Second embodiment

Like Fig. 4 and shown in Figure 5; The hand warmer of this kind of heat exchanger; Its structure is close with above-mentioned first embodiment one; Difference is merely: said heat exchanger 3 is installed on the bag 1, and the inlet 41 of its heating chamber 4 is connected with bag chamber 2 respectively with outlet 42, and heat exchanger 3 is installed on the mount pad 9 of bag 1 outer wall.

And, electric heating tube or heating wire or electric heating lamina membranacea are installed in the heating chamber 4 of said heat exchanger 3.

Claims

1. the hand warmer of heat exchanger; Comprise bag (1), bag (1) but in be provided with storaging liquid the bag chamber (2), it is characterized in that; Said bag chamber (2) is outside equipped with heat exchanger (3); Be provided with heating chamber (4) in the heat exchanger (3), the inlet (41) of heating chamber (4) and outlet (42) are connected with bag chamber (2) respectively, also are provided with water pump (5) between said heating chamber (4) and the bag chamber (2).

2. according to the hand warmer of the said heat exchanger of claim 1; It is characterized in that; Said heat exchanger (3) is an independent case, and heating chamber (4) is arranged in the housing, and surface of shell is provided with two interfaces respectively as the inlet (41) of heating chamber and outlet (42); Bag (1) is provided with two connecting ports (6,7) corresponding with two interfaces of surface of shell, is separately installed with check (non-return) valve (8) on two connecting ports (6,7).

3. according to the hand warmer of the said heat exchanger of claim 1, it is characterized in that said heat exchanger (3) is installed on the bag (1), inlet (41) of its heating chamber (4) and outlet (42) are connected with bag chamber (2) respectively.

4. according to the hand warmer of the said heat exchanger of claim 3, it is characterized in that said heat exchanger (3) is installed on the mount pad (9) of bag (1) outer wall.

5. according to the hand warmer of the said heat exchanger of claim 1, it is characterized in that said water pump (5) is installed on the heat exchanger (3), and place the inlet (41) of heating chamber (4) or outlet (42) to locate.

6. according to the hand warmer of the said heat exchanger of claim 1; It is characterized in that; Said heat exchanger (3) is the duct type heater; Duct type heater inner chamber is as the heating chamber (4) of water flowing, and its pipe outer wall is provided with conductive heating layer, and water pump (5) is arranged on the inlet (41) or the outlet (42) of duct type heater and locates.

7. according to the hand warmer of the said heat exchanger of claim 1, it is characterized in that, electric heating tube or heating wire or electric heating lamina membranacea are installed in the heating chamber (4) of said heat exchanger (3).

8. according to the hand warmer of the said heat exchanger of claim 1, it is characterized in that, also be provided with temperature controller and/or fuse (10) on the said heat exchanger (3).

9. according to the hand warmer of the said heat exchanger of claim 2, it is characterized in that two connecting ports (6,7) of said bag (1) locate also to be connected with microswitch (12), microswitch (12) electrically connects with water pump (5), heat exchanger (3).

10. according to the hand warmer of claim 1 or 2 said heat exchangers, it is characterized in that also be provided with anti-reversing heater switch (15) on the said heat exchanger (3), anti-reversing heater switch (15) electrically connects with water pump (5).