TW201335552A - Rapid electric heating device - Google Patents

Abstract

A rapid electric heating device. It includes a liquid pipe and a control unit. The liquid pipe has several heating sections. An electric bar is in each heating section. The electric bar is used to heat the liquid flowing through. So the liquid can be heated by absorbing the thermal energy. There are some control elements in the control unit. Each control elements are connected to each electric bars and control the electric bars. Those control elements are set in the heat dissipation pipe which is used to release the thermal of the control elements. The liquid in the liquid pipe can reach the most heating sources by those several heating sections and the electric bars in the liquid pipe. Therefore, the liquid can absorb the thermal energy quickly and be heated quickly.

Description

Instant electric heating device

The invention relates to an instant electric heating device, in particular to a heating device which uses a plurality of heating sections to cooperate with a plurality of electric heating rods to heat the liquid to achieve a heat conversion efficiency.

A conventional electric heating device such as the Patent No. M371863 of the Republic of China, "Electrical Water Heater with Spoiler Structure", the heating body, the heating element, the coil and the heat pipe, and the heating element are The heat pipe heats the liquid inside the body, but the inside of the body contains a large amount of liquid, so that the heating process takes more time, and the larger energy source can heat the liquid to the set temperature, except that the heat conversion efficiency is poor. In addition, it is a big problem for the length of heating time and the cost of energy.

In addition, the patent of the "Liquid Heater" of the Republic of China New Patent Publication No. M404951 mainly comprises a heating pipe, a conductive component and a controller electrically connected to the conductive component, wherein the heating pipe has thermal conductivity. The continuous curved tube body is coated with an alloy electrothermal layer, and the conductive component contacts the alloy electrothermal layer with its positive and negative conductive elements respectively, thereby rapidly distributing the heat generated by the electric layer of the alloy to the tube body, and realizing the instant In addition, it is also possible to add a guide vane at the water inlet end of the pipe body or form a spiral guide portion in the pipe wall of the pipe body to increase the swirling property of the water flow and increase the heating speed of the water.

Although the above-mentioned former case M404951 solves the problem of poor heat conversion efficiency and large energy consumption of the former case M371863, it still has the following problems:

1. The alloy electric heating layer is coated on the continuous curved pipe body. Therefore, when the electric heating layer of the alloy is broken or damaged, it is necessary to replace the entire set of continuously curved pipe bodies, which is quite inconvenient.

2. The alloy electric heating layer only has the whole group start or the whole group does not start the operation mode, so it is not easy to control the energy output, and there are doubts about wasting energy.

3. Due to the use of the alloy electric heating layer to heat the liquid, the controller is not easy to control the power output, and affects the stability of the output liquid temperature, and the thermostatic effect is not good.

4. The heat energy generated by the electrothermal layer of the alloy needs to be transferred to the continuously curved tube body and then transferred to the liquid inside the tube body, so that the heat conversion efficiency is poor and the heat energy is lost quickly.

Accordingly, in order to improve the problems caused by the conventional liquid heating device, the present inventors have developed a kind of instant electric power under the concept of improving the heat exchange efficiency of the liquid heating device and the efficient use of energy. A heating device for heating a liquid, comprising:

a heating unit comprises a liquid pipeline, the liquid pipeline is provided with an inlet and an outlet, and the inlet and the outlet of the liquid pipeline are divided into a plurality of heating sections, and each of the heating sections is internally accommodated with a heating rod The liquid pipeline is provided with a first liquid temperature sensing element near the inlet; a control unit includes a control circuit board, and the control circuit board is electrically connected with a plurality of control components, each of the foregoing control components respectively corresponding to the electricity Each of the electric heating rods is connected to each of the above, and each of the electric heating rods is separately controlled, and each of the control elements is disposed to be attached to a heat dissipating pipe, wherein the heat dissipating pipe is provided with two ends, one end of which is connected and communicates with the liquid pipe The other end is connected to a fluid switch, and the fluid switch is electrically connected to the control circuit board.

The heating sections of the liquid line are arranged side by side, and the electric heating rods are also arranged side by side.

Under the condition that the total power output of the electric heating rod is fixed, the power value generated by each of the electric heating rods is reduced by the electric heating rod near the inlet of the liquid pipeline to the electric heating rod near the outlet of the liquid pipeline. .

The liquid pipeline is provided with a second liquid temperature sensing element adjacent to the outlet, and the second liquid temperature sensing component is electrically connected to the control unit.

The control element is a thyristor.

The control element is screwed to the heat dissipation pipe.

The control unit is an electronic control unit.

The effect of the invention:

1. By using a plurality of heating sections with corresponding electric heating rods, the liquid in the liquid pipeline can quickly absorb a large amount of thermal energy to achieve rapid heating, and the heat conversion efficiency is good.

2. The electronic control unit can be used for more accurate and faster temperature control, and the function of maintaining constant temperature is good.

3. The heat generated by the control element is dissipated by the liquid in the heat dissipating tube to avoid the problem of excessive temperature in the operating process of the control element.

4. The heat pipe is used to absorb the heat energy generated by the control element, which has the effect of liquid preheating, and achieves the effect of waste heat reuse.

5. By adjusting the different power output of each electric heating rod, under the condition of constant total power, better heat conversion efficiency can be achieved, energy consumption is saved, and the time for the liquid to reach the set temperature is shortened.

6. Since each electric heating rod is separately accommodated in the corresponding heating section, the electric heating rod can be replaced separately to reduce the maintenance cost.

With regard to the technical features and the enhancement of the present invention, the preferred embodiments of the present invention can be clearly presented. First, referring to the first and second figures, the preferred embodiment of the present invention is a kind of heat. Electric heating device, comprising:

A heating unit (1) includes a liquid line (11) for heating the liquid flow path, and the liquid line (11) is provided with an inlet (111) and an outlet (112) so that the liquid can be accessed from the aforementioned inlet ( 111) entering the liquid pipeline (11), flowing out from the outlet (112) through a heating process, and dividing the inlet (111) and the outlet (112) of the liquid pipeline (11) into a plurality of heating sections (A) The inside of each heating section (A) is respectively accommodated with an electric heating rod (12) for supplying thermal energy to the liquid flowing through the heating section (A), so that the temperature after the liquid absorbs the thermal energy In particular, the surface of the electric heating rod (12) is heated, and the liquid absorbs the heat of the surface of the electric heating rod (12) through the heat transfer section (A) to increase the liquid temperature, and the liquid pipeline (11) A first liquid temperature sensing element (13) is disposed adjacent to the inlet (111) for sensing the temperature of the liquid flowing into the liquid line (11), and a second liquid temperature is adjacent to the outlet (112). Measuring element (14) for sensing the temperature of the liquid flowing out of the liquid line (11), which is added in this embodiment Section (A) and heating bar (12) arranged side by side as a train, to reduce the heating unit (1) on a volume.

A control unit (2) includes a control circuit board (21), and the control circuit board (21) is an electronic control circuit board (21), which is equipped with a built-in temperature control software, compared to the motor type The control circuit board can control more temperature and control the reaction speed. The control circuit board (21) is electrically connected with a plurality of control elements (22), which are thyristors [triac], the foregoing Each of the control elements (22) is electrically connected to each of the electric heating rods (12), and each of the electric heating rods (12) is controlled to be actuated or not, and each of the control elements (22) is attached to one of the control elements (22). The heat dissipating pipe (23), the heat dissipating pipe (23) is used as a heat dissipating device of the control element (22). In this embodiment, the control element (22) is screwed and attached to the heat dissipating pipe (23) The heat dissipation pipeline (23) is provided with two ends, one end of which is connected to and communicates with the inlet (111) of the liquid pipeline (11), and the other end is connected to a fluid switch (24), and the fluid switch (24) is electrically connected. The foregoing control circuit board (21) is connected to transmit whether a fluid passes through the fluid switch (24). . The liquid enters through the aforementioned fluid switch (24), flows into the liquid line (11) via the heat dissipation line (23), and is controlled by the heating unit by the control unit (2).

Referring to the third figure, in the embodiment, the heating section (A) and the electric heating rod (12) are each six. First, the control unit (2) is temperature-set [for example, liquid heating to 40 ° C], when the fluid switch (24) detects that liquid has passed, it transmits a signal to the control circuit board (21) of the control unit (2), and executes the control element (22) Driving the electric heating rod (12) while sensing the temperature of the liquid before heating (for example, 20 ° C) through the first liquid temperature sensing element (13), and the control unit (2) calculates the rise through the built-in software The total power required at 20 ° C, and each of the control elements (22) respectively controls the electric heating rods (12) to respectively output power so that the respective powers are summed up to be equal to the total power required, The liquid in the liquid line (11) is heated while sensing the temperature of the heated liquid through the second liquid temperature sensing element (14) and transmitting the signal to the control circuit of the control unit (2) The plate (21) is fed back until the set temperature is reached.

The liquid pipeline (11) is provided with a plurality of heating sections (A) and matched with corresponding electric heating rods (12), so that the liquid in the liquid pipeline (11) can contact a large-area heating source. It absorbs heat quickly and achieves rapid temperature rise. It is suitable for use as an electric water heater with stable temperature output, fast heating and fast temperature adjustment.

Referring to the fourth figure, in order to improve the liquid heating efficiency, the output power of each of the electric heating rods (12) is adjusted under the condition that the total output power is fixed, in detail, due to the proximity to the liquid pipeline ( 11) The inlet (111) has a lower liquid temperature and requires more power to raise the temperature. The liquid near the outlet (112) of the liquid line (11) has a higher temperature and requires less power. The temperature can be raised, and the power value generated by each of the electric heating rods (12) is made by the electric heating rod (12) near the inlet (111) of the liquid pipeline (11) under the condition that the total output power is constant. The reduction of the electric heating rod (12) to the outlet (112) of the liquid line (11) allows the liquid to be heated more efficiently without additional power addition for energy saving purposes.

Referring to the fifth figure, it is further explained that since the control element (22) controls the operation of the electric heating rod (12) to generate high temperature, if the temperature generated by the control element (22) is too high, the In order to solve this problem, in the present embodiment, the control element (22) is attached and fixed to the heat dissipation pipe (23) as the control. The heat sink of the component (22), in particular, absorbs the heat generated by the control element (22) by the liquid flowing in the heat dissipation conduit (23) to maintain the operating temperature of the control component (22) Low temperature, in addition, before entering the liquid pipeline (11), the liquid has first absorbed the heat energy generated by some of the control elements (22), and the liquid temperature is raised, and the means contributes to the subsequent heating process. Through this means, the purpose of stabilizing the control element (22), the waste heat reuse, and the preheating of the liquid can be achieved. The preheating of the liquid can simultaneously achieve the power saving and the shortening of the heating time, which is a better design.

However, the above description is only a preferred embodiment of the present invention, and the scope of the present invention is not limited thereto, that is, the simple equivalent changes and modifications according to the scope of the present invention and the description of the invention are the present invention. Within the scope of the patent.

(1). . . Heating unit

(11). . . Liquid line

(111). . . Entrance

(112). . . Export

(12). . . Electric heating rod

(13). . . First liquid temperature sensing element

(14). . . Second liquid temperature sensing element

(2). . . control unit

(twenty one). . . Control board

(twenty two). . . control element

(twenty three). . . Heat pipe

(twenty four). . . Fluid switch

(A). . . Heating section

The first figure is a schematic diagram illustrating the correspondence (I) of the various components of the preferred embodiment.

The second drawing is a schematic diagram illustrating the correspondence between the components of the preferred embodiment (2).

The third drawing is a schematic diagram illustrating the implementation of the preferred embodiment.

The fourth figure is a schematic diagram illustrating the power distribution of the electric heating rod of the preferred embodiment.

The fifth drawing is a schematic diagram illustrating the correspondence between the control element of the preferred embodiment and the heat dissipation conduit.

(1). . . Heating unit

(11). . . Liquid line

(111). . . Entrance

(112). . . Export

(12). . . Electric heating rod

(13). . . First liquid temperature sensing element

(14). . . Second liquid temperature sensing element

(2). . . control unit

(twenty one). . . Control board

(twenty two). . . control element

(twenty three). . . Heat pipe

(twenty four). . . Fluid switch

(A). . . Heating section

Claims (7)

An instant electric heating device comprising:
a heating unit comprises a liquid pipeline, the liquid pipeline is provided with an inlet and an outlet, and the inlet and the outlet of the liquid pipeline are divided into a plurality of heating sections, and each of the heating sections is internally accommodated with a heating rod The liquid pipeline is provided with a first liquid temperature sensing element near the inlet;
A control unit includes a control circuit board electrically connected to a plurality of control elements, each of the control elements respectively electrically connecting each of the electric heating rods, and respectively controlling each of the electric heating rods, each of the foregoing A control element is disposed on a heat dissipating pipe, wherein the heat dissipating pipe is provided with two ends, one end of which is connected to and communicates with the inlet of the liquid pipe, and the other end is connected to a fluid switch, and the fluid switch is electrically connected to the control circuit board. The instant electric heating device according to claim 1, wherein the heating sections of the liquid pipeline are arranged side by side, and the electric heating rods are also arranged side by side. The instant electric heating device according to claim 2, wherein the total power of the electric heating rod output is fixed, and the power value generated by each of the electric heating rods is close to the liquid pipeline. The electric heating rod of the inlet is reduced toward the electric heating rod near the outlet of the liquid line. The instant electric heating device according to claim 1, wherein the liquid pipeline is provided with a second liquid temperature sensing element near the outlet, and the second liquid temperature sensing component is electrically connected to the control. unit. The instant type electric heating device according to claim 1, wherein the control element is a thyristor. The instant type electric heating device according to claim 1, wherein the control element is screwed to the heat dissipation pipe. The instant type electric heating device according to claim 1, wherein the control unit is an electronic control unit.