CN201081408Y - electric heater - Google Patents

Abstract

The utility model relates to an electric heater, which comprises a housin, heating element, phase change heat-conducting body and heat-absorbing body, be formed with the accommodation chamber inside the casing, and set up on it with communicating a plurality of inlet ports of accommodation chamber and a plurality of venthole, and heating element and phase change heat-conducting body are fixed respectively to hold and locate the accommodation indoor portion of casing, the one end and the mutual attached contact of heating element of heat-conducting body, the other end then is connected in the heat-absorbing body, the heat-absorbing body comprises a plurality of heat-absorbing fins, and be formed with airflow channel between two arbitrary adjacent heat-absorbing fins, airflow channel is corresponding to the venthole configuration. Therefore, the hot air flow sent by the electric heater can be controlled below a specific temperature, and the use safety is improved.

Description

electric heater

technical field

The utility model relates to an electric heater, in particular to an electric heater for household appliances.

Background technique

People who live in temperate or frigid regions often have to rely on electric heaters for heating due to the low temperature in winter, so electric heaters have become a must-have electrical appliance in the family. There are a wide variety of common electric heaters on the market, and most of them have more or less problems such as low safety, oxygen burning, large volume, and heavy weight. Therefore, in order to effectively improve the aforementioned problems, the design has carried out innovative improvements to the internal structure of the electric heater.

The known electric heater mainly includes a body, and an accommodation space is formed inside the body, and a single or multiple electric heating tubes are connected to the accommodation space, and a grid-shaped cover connected to the body is covered outside the electric heating tubes. . The operation of the electric heater is realized by the heating of the electric heating tube to produce a temperature rise effect and the gas heat convection effect to diffuse the heat energy.

However, the known electric heater still has the following problems in actual use. The surface area of the electric heating tube in contact with the air is small, and the time for the cold air to flow through the electric heating tube is short, so in order to achieve a certain temperature increase, the temperature of the electric heating tube must be greatly increased. In addition, the temperature rise of the electric heating tube will reach hundreds of degrees Celsius after being heated, which will not only easily cause the objects around the electric heater to burn, but even cause a terrible fire problem. The safety of use is really worrying. In addition, the electric heater will burn oxygen during operation, which often reduces the amount of oxygen in the air greatly, thus causing dry mouth and discomfort to the user.

Utility model content

The purpose of this utility model is to provide an electric heater, which can make the hot air flow sent by the electric heater be controlled below a specific temperature by setting the phase change heat conductor, thereby increasing the safety of use.

The electric heater includes a shell, a heating assembly, a phase-change heat conductor, and a heat absorber, wherein an accommodating chamber is formed inside the shell, and a plurality of air inlets communicating with the accommodating chamber are opened on the shell and a plurality of air outlets, and the heating element and the phase-change heat conductor are respectively fixed and accommodated inside the housing chamber, and one end of the heat conductor is attached to and in contact with the heating element, and the other end is connected to the A heat absorber, the heat absorber is composed of a plurality of heat absorbing sheets, and an air flow channel is formed between any two adjacent heat absorbing sheets, and the air flow channels are arranged corresponding to the air outlet holes.

Another object of the present invention is to provide an electric heater, which does not burn oxygen in the air when in use, but can increase the user's comfort in use.

Another object of the present invention is to provide an electric heater, which utilizes heat pipes and heat-absorbing fins to arrange each other to increase the heat exchange area and increase the heating time of the cold air in the channels between the heat-absorbing fins.

Another object of the present utility model is to provide an electric heater, which is small in size, light in weight, fast in heat conduction rate and high in heat efficiency.

Compared with the prior art, the utility model has the advantages of safe use, small size, light weight, fast heat conduction rate and high thermal efficiency.

Description of drawings

Fig. 1 is a three-dimensional exploded view of the utility model;

Fig. 2 is a schematic diagram of a combination of local components of the utility model;

Fig. 3 is the combined schematic view of the utility model;

Fig. 4 is a combined sectional view of the utility model;

Fig. 5 is a cross-sectional view of the utility model in use.

In the accompanying drawings, the list of parts represented by each label is as follows:

Shell 10

Front shell 11 Air outlet 111

Knob 112 Handle 113

Rear shell 12 Air intake hole 121

Stud 122 Handle 123

Containment room 13

heating element 20

Heating plate 21 Longitudinal hole 211

Electrode plate 22 Heat shield 23

Fixed plate 24

Phase change heat conductor 30

Heat absorber 40

Heat absorbing sheet 41 Airflow channel 42

fan 50

Detailed ways

The detailed description and technical content of the present utility model are described below in conjunction with the accompanying drawings, but the accompanying drawings are only provided for reference and illustration, and are not intended to limit the present utility model.

Fig. 1 is a three-dimensional exploded view of the utility model, Fig. 2 is a schematic diagram of the combination of partial components of the utility model, Fig. 3 is a schematic diagram of the combination of the utility model, and Fig. 4 is a combined sectional view of the utility model. The utility model provides an electric heater, which mainly includes a shell 10 , a heating assembly 20 , a phase change heat conductor 30 and a heat absorber 40 .

The housing 10 is composed of a front shell 11 and a rear shell 12 correspondingly connected with the front shell 11 . An accommodating chamber 13 (as shown in FIG. 4 ) is formed between the front shell 11 and the rear shell 12, and a plurality of air outlet holes 111 are opened above the front panel of the front shell 11, and a knob is provided in the middle of the bottom of the air outlet holes 111. 112, used to control the air volume of the electric heater. A plurality of air intake holes 121 are defined above the panel of the rear case 12 , and a plurality of studs 122 are disposed below the air intake holes 121 inside the rear case 12 . Corresponding handles 113 , 123 protrude above the front shell 11 and the rear shell 12 , so as to carry out lifting and moving. In addition, the handle can also be arranged on one side above the front shell 11 or the rear shell 12 (not shown in the figure).

The heating assembly 20 is fixed inside the accommodating chamber 13 of the casing 10 , and includes a heating plate 21 , an electrode plate 22 attached to one side of the heating plate 21 , and a heat insulating plate sandwiched between the heating plate 21 and the rear shell 12 . plate 23 , and a fixing plate 24 that presses and fixes the heating plate 21 and the heat insulating plate 23 inside the rear shell 12 . The heating plate 21 is provided with a plurality of longitudinal holes 211 , the electrode plate 22 can receive an AC power supply, and the fixing plate 24 is fixed on the stud 122 of the rear case 12 with screws and other components.

The phase change heat conductor 30 is also accommodated inside the accommodating chamber 13 of the casing 10 . The heat conductor 30 can be a cylindrical heat pipe or a plate-shaped heat pipe (or a uniform temperature plate). In this embodiment, it is a cylindrical heat pipe (heat pipe). Vertically extending upward from the lower end to the sides of the air outlet hole 111 of the front shell 11 and the air inlet hole 121 of the rear shell 12 .

The heat absorber 40 is sleeved on the heat conductor 30 . The heat absorber 40 is formed by stacking a plurality of heat absorbing sheets 41 , and an air flow channel 42 is formed between any two adjacent heat absorbing sheets 41 , and the air flow channel 42 is arranged corresponding to the air outlet hole 111 .

In addition, the utility model also includes a fan 50 . The fan 50 is fixedly connected to the inside of the front shell 11, and corresponds to between the air outlet 111 of the front shell 11 and the heat absorber 40, and the heat absorbing fins 41 are absorbed by the rotation of the fan 50 and the generated forced airflow. The heat energy is blown towards the outside of the heater.

Fig. 5 is a cross-sectional view of the utility model in use. Through the assembly and connection of the aforementioned components, the plug is inserted into the socket (not shown in the figure) before use, and then the knob 112 is turned. At this time, the electrode plate 22 will heat the heating plate 21 , and the heat energy will be quickly transferred to each heat absorbing sheet 41 of the heat absorbing body 40 through the vapor and liquid phase heat conduction mechanism of the heat conducting body 30 . Most of the working fluid inside the heat conductor 30 is liquid such as water, because its vaporization temperature can be controlled below 100° C., thereby increasing the safety of use. The forced airflow generated by the fan 50 can first flow the heat energy between the airflow channels 42 of the heat absorbing fins 41 through the fan 50 , and then blow it out from the air outlet 111 of the front shell 11 .

To sum up, the electric heater of the utility model has practicality, novelty and creativity, and the structure of the utility model has never been seen in similar products and has been used publicly, which fully meets the requirements of the utility model patent application.

Claims (7)

1. electric heater is characterized in that comprising:

Housing, its inside is formed with accommodation chamber, offers a plurality of air admission holes and a plurality of venthole that communicate with described accommodation chamber on described housing;

Heating component is fixed in the accommodation chamber inside of described housing;

The phase change heat carrier is located in the accommodation chamber inside of described housing, and an end and the described heating component of described heat carrier amplexiform mutually; And

Absorber is connected in the other end of described heat carrier, and described absorber is made of a plurality of heat absorbing sheets, and is formed with gas channel between any two adjacent heat absorbing sheets, and described gas channel disposes corresponding to described venthole.

2. electric heater as claimed in claim 1, it is characterized in that, described housing is reached by fore shell to be formed with the back cover of the corresponding connection of described fore shell, between described fore shell and described back cover, be formed with described accommodation chamber, on described fore shell, offer described venthole, on described back cover, offer described air admission hole.

3. electric heater as claimed in claim 2, it is characterized in that, described heating component comprises heating plate, offer vertical hole on the described heating plate, described heat carrier lower end is connected in described vertical hole, and described heat carrier upwards extends perpendicularly to the venthole of described fore shell and the air admission hole side of described back cover.

4. electric heater as claimed in claim 3, it is characterized in that described heating component also comprises the battery lead plate that amplexiforms in heating plate one side, be located in the thermal insulation board between described heating plate and the described back cover and described heating plate and described thermal insulation board pressed the fixed head that is fixed on described back cover inside.

5. electric heater as claimed in claim 1 is characterized in that, described phase change heat carrier is a column-type heat tube.

6. electric heater as claimed in claim 1 is characterized in that, described phase change heat carrier is a plate shape heat pipe.

7. electric heater as claimed in claim 1 is characterized in that also comprising fan, and described fan is fixedly connected on described enclosure interior, and between the venthole and absorber corresponding to described housing.

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