Heat accumulating type thermal inertia electric heater

Abstract

The utility model discloses a heat accumulating type thermal inertia electric heater, and relates to the technical field of electric heaters, the heat accumulating type thermal inertia electric heater comprises a shell, a heating module and an electric control module, a heating cavity and a control cavity are formed in the shell, the bottom wall of the heating cavity is provided with an air inlet, and the top wall of the heating cavity is provided with an air outlet; the heating module is arranged in the heating cavity and comprises a heat accumulating type heating body and a convection type heating body, and the convection type heating body is arranged close to the air inlet and arranged below the heat accumulating type heating body; the electric control module comprises an electric control board and a power source assembly, the electric control board and at least part of the power source assembly are arranged in the control cavity, the electric control board is electrically connected with the heating module and the power source assembly, and the electric control board can control whether to supply power to the heat storage type heating body and the convection type heating body or not and control the power supply power. The electric control board can control the fluctuation range of the environment temperature within 1 DEG C to 3 DEG C. According to the technical scheme provided by the utility model, not only can rapid temperature rise be realized, but also heat storage type heating can be realized.

Description

Technical Field

[0001] The utility model relates to the technical field of electric heaters, in particular to a heat storage type thermal inertia electric heater. Background Art

[0002] With the depletion of traditional energy and the improvement of people's environmental awareness, thermal storage electric heaters are popular among users for their energy saving and long-term continuous heating. However, thermal storage electric heaters have a slow heating speed at the beginning and cannot achieve rapid heating in a short time. Utility Model Content

[0003] The main purpose of the utility model is to provide a heat storage type thermal inertia electric heater, which aims to achieve both rapid temperature increase and heat storage type heating.

[0004] To achieve the above-mentioned purpose, the heat storage type thermal inertia electric heater proposed in the present invention comprises:

[0005] A shell having a heating chamber and a control chamber formed therein, the heating chamber and the control chamber being arranged on opposite sides of the heat insulation board and distributed along the length of the shell, an air inlet being provided on the bottom wall of the heating chamber, and an air outlet being provided on the top wall of the heating chamber;

[0006] a heating module, disposed in the heating chamber, comprising a heat storage type heating element and a convection type heating element, wherein the convection type heating element is disposed near the air inlet, and the heat storage type heating element is disposed above the convection type heating element; and

[0007] The electric control module includes an electric control board and a power supply assembly. The electric control board and at least part of the power supply assembly are arranged in the control cavity. The electric control board is electrically connected to the heating module and the power supply assembly.

[0008] In one embodiment, a convection channel is provided between the thermal storage heating element and the air outlet, and a ratio of a length of the convection channel in a height direction of the shell to a height of the shell is α, and a value range of α is 3.5 to 2.

[0009] In one embodiment, the thermal storage type thermal inertia electric heater further includes a first mounting bracket, which is provided on the rear cover of the housing and is used to fix the thermal storage type heating element.

[0010] In one embodiment, the thermal storage heating element includes a heating wire and a heat storage plate, the heating wire is embedded in the heat storage plate and exposed on a side of the heat storage plate close to the rear cover of the shell, the first mounting bracket includes two mounting pins and a connecting plate connecting the two mounting pins, one mounting pin is provided on the rear cover of the shell, the other mounting pin is connected to the heat storage plate, and the connecting plate extends along the thickness direction of the shell.

[0011] In one embodiment, the thermal storage type thermal inertia electric heater further includes a second mounting bracket, which is provided on the rear cover of the housing and is used to fix the convection heating element.

[0012] In one embodiment, two thermal storage heating elements are provided, and the two thermal storage heating elements are arranged along the length direction of the shell.

[0013] In one embodiment, the total mass of the two thermal storage heating elements ranges from 1 kg to 100 kg.

[0014] In one embodiment, the thermal storage heating element includes a ceramic heating element or a cast iron heating element.

[0015] In one embodiment, the bottom wall of the control cavity is provided with a first air vent, and the electronic control module further includes a control panel, which is provided on the top wall of the shell and arranged relative to the control cavity, and the control panel is electrically connected to the electronic control board.

[0016] In one embodiment, the electric control module further includes an ambient temperature sensor, which is disposed in the control cavity, close to the first air vent, and electrically connected to the electric control board.

[0017] In one embodiment, a second air vent is provided on the control cavity, and the second air vent is provided on a side wall of the control cavity away from the heating cavity.

[0018] The heat storage type thermal inertia electric heater in the technical solution of the present invention heats the surrounding environment through heat convection. Before the heat storage type heating element is heated to the set temperature, the convection type heating element allows the surrounding environment to heat up at a faster rate. When the heat storage type electric heating plate reaches the preset temperature, the electric control board controls the power supply component to stop supplying current to the heat storage type heating element and the convection type heating element, so as to heat the surrounding environment through the heat accumulated in the heat storage type heating element, thereby saving energy consumption during heating. That is, by combining the convection type heating element and the heat storage type heating element, the heat storage type thermal inertia electric heater can achieve the functions of both rapid heating and heat storage heating. By providing a heat insulation board to separate the heating chamber and the control chamber, the electric control board and the power supply component in the electric control module can be protected from the influence of high temperature, thereby preventing the electric control board and the power supply component from being attacked by high temperature and causing short circuit, explosion, etc. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying any creative work.

[0020] Figure 1 This is a structural diagram of an embodiment of a heat storage type thermal inertia electric heater provided by the present utility model;

[0021] Figure 2 for Figure 1 Another structural schematic diagram of the illustrated embodiment;

[0022] Figure 3 for Figure 1 Another structural schematic diagram of the illustrated embodiment;

[0023] Figure 4 for Figure 2 Schematic diagram of the structure of the medium thermal storage heating element;

[0024] Figure 5 for Figure 2 Schematic diagram of the structure of the convection heating element.

[0025] Description of Figure Numbers:

[0026] 100, housing; 11, heating chamber; 111, air inlet; 112, air outlet; 113, first mounting bracket; 114, mounting pins; 115, connecting plate; 116, second mounting bracket; 117, clamping plate; 118, fixing plate; 12, control chamber; 121, first air vent; 122, second air vent;

[0027] 200, heating module; 21, thermal storage heating element; 211, heating wire; 212, thermal storage plate; 22, convection heating element; 221, fin; 222, tube;

[0028] 300. Electronic control module; 31. Control panel.

[0029] The realization of the purpose, functional features and advantages of the present invention will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0030] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts shall fall within the scope of protection of the present invention.

[0031] It should be noted that if the embodiments of the present invention involve directional indications (such as up, down, left, right, front, back, etc.), the directional indications are only used to explain the relative position relationship, movement status, etc. between the components in a certain specific posture. If the specific posture changes, the directional indications will also change accordingly.

[0032] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the present invention, the descriptions of "first", "second", etc. are only for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features limited to "first" and "second" may explicitly or implicitly include at least one of such features. In addition, if "and / or" or "and / or" appears in the full text, its meaning includes three parallel schemes. Taking "A and / or B" as an example, it includes scheme A, or scheme B, or a scheme in which A and B are satisfied at the same time. In addition, the technical solutions between the various embodiments can be combined with each other, but it must be based on the ability of ordinary technicians in this field to implement. When the combination of technical solutions is mutually contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0033] The utility model provides a heat storage type thermal inertia electric heater.

[0034] See also Figures 1 to 5 In one embodiment of the present invention, the heat storage type thermal inertia electric heater comprises:

[0035] The housing 100 has a heating chamber 11 and a control chamber 12 formed therein. The heating chamber 11 and the control chamber 12 are located on opposite sides of the heat insulation board and are distributed along the length of the housing 100. An air inlet 111 is provided on the bottom wall of the heating chamber 11, and an air outlet 112 is provided on the top wall of the heating chamber 11.

[0036] The heating module 200 is provided in the heating chamber 11 and includes a heat storage type heating element and a convection type heating element 22. The convection type heating element 22 is provided near the air inlet 111, and the heat storage type heating element 21 is provided above the convection type heating element 22; and

[0037] The electric control module 300 includes an electric control board and a power supply assembly. The electric control board and at least part of the power supply assembly are arranged in the control cavity 12. The electric control board is electrically connected to the heating module 200 and the power supply assembly.

[0038] The thermal storage inertia electric heater of the present invention heats the surrounding environment through convection. Before the thermal storage heating element reaches the set temperature, the convection heating element 22 allows the surrounding environment to heat up at a faster rate. When the thermal storage heating plate reaches the preset temperature, the electrical control board controls the power supply assembly to stop supplying current to the thermal storage heating element and the convection heating element 22, allowing the heat stored in the thermal storage heating element 21 to heat the surrounding environment, thereby saving energy consumption during heating. In other words, by combining the convection heating element 22 and the thermal storage heating element 21, the thermal storage inertia electric heater achieves both rapid temperature increase and thermal storage heating. By providing a heat insulation board separating the heating chamber 11 and the control chamber 12, the electrical control board and power supply assembly within the electrical control module 300 are protected from high temperatures, preventing them from shorting out or exploding due to high temperatures.

[0039] In one embodiment, a convection channel is provided between the thermal storage heating element 21 and the air outlet 112, and the ratio of the length of the convection channel in the height direction of the shell 100 to the height of the shell 100 is α, and the value range of α is 3.5 to 2. After being heated by the thermal storage heating element 21 and the convection heating element 22, the gas in the heating chamber 11 can ascend in the convection channel to flow out of the air outlet 112, and the gas flowing out of the air outlet 112 can increase the ambient temperature. Placing the thermal storage heating element 21 close to the air inlet 111 and extending the length of the convection channel in the shell 100 can help the thermal storage heating element 21 and the convection heating element 22 to fully heat the gas entering from the air inlet 111, ensuring that only the gas with a certain heat standard can have enough energy to pass through the convection channel to heat the external environment. When the value of α is in the range of 3.5 to 2, the gas flowing out of the gas outlet 112 has enough heat to rapidly increase the temperature of the surrounding environment or maintain it at a higher temperature (for example, above 10° C.).

[0040] In one embodiment, the thermal storage type thermal inertia electric heater further includes a first mounting bracket 113, which is disposed on the rear cover of the housing 100 and is used to secure the thermal storage type heating element 21. Specifically, the thermal storage type heating element 21 includes a heating wire 211 and a thermal storage plate 212. The heating wire 211 is embedded in the thermal storage plate 212 and exposed on the side of the thermal storage plate near the rear cover of the housing 100. The first mounting bracket 113 includes two mounting pins 114 and a connecting plate 115 connecting the two mounting pins 114. One mounting pin 114 is disposed on the rear cover of the housing 100, and the other mounting pin 114 is connected to the thermal storage plate 212. The connecting plate 115 extends along the thickness direction of the housing 100. The first mounting bracket 113 can leave a gap between the heating wire and the rear cover of the housing 100, thereby preventing the heating wire from directly contacting the housing 100, or the higher temperature heating element from directly contacting the housing 100, thereby preventing the housing 100 from melting or deforming due to heat. In other embodiments, the first mounting bracket 113 may be hooked on the top wall of the housing 100 .

[0041] In one embodiment, the heat storage thermal inertia electric heater further includes a second mounting bracket 116, which is provided on the rear cover of the housing 100 and is used to fix the convection heating element. The second mounting bracket 116 includes two clamping clamps 117 and a fixing plate 118 provided between the two clamping clamps 117. The convection heating element is provided with fins 221 extending along the length direction of the housing 100, and a tube body 222 through which a heating wire is passed. The fins 221 are provided on opposite sides of the tube body 222 in the height direction of the housing 100. The fins 221 have two or more mounting holes spaced apart. The two clamping clamps 117 pass through the mounting holes to clamp and fix the tube body 222, so that the fins 221 do not directly contact the housing 100, thereby preventing the housing 100 from melting or deforming due to heat. In other embodiments, the second mounting bracket 116 can also be provided on the bottom wall of the housing 100.

[0042] In one embodiment, two thermal storage heating elements 21 are provided, and the two thermal storage heating elements 21 are arranged along the length direction of the shell 100. Furthermore, the total mass of the two thermal storage heating elements 21 ranges from 1 kg to 100 kg. Since the greater the mass of the heat storage plate 212, the more storage capacity it can have, the greater the thermal inertia of the thermal storage heating element 21, that is, the longer the heat storage time. Therefore, thermal storage heating elements of different masses can be produced and configured according to the usage needs of users in different regions, that is, different heat storage times. To ensure that the heat storage plate 212 is heated evenly when heated by the heating wire, two heat storage plates 212 and corresponding heating wires are provided to heat the two heat storage plates 212 separately. This helps to increase the temperature rise rate of the thermal storage heating element 21 and the uniformity of the heating of the thermal storage plates 212. In addition, the two thermal storage heating elements 21 arranged along the length of the housing 100 help to increase the heating range of the gas in the heating chamber 11, thereby quickly heating the gas in the heating chamber 11. In other embodiments, there can be only one thermal storage heating element 21 and two heating wires in the thermal storage heating element 21.

[0043] In one embodiment, the thermal storage heating element 21 includes a ceramic heating element, a cast iron heating element, or a volcanic stone heating element. Cast iron, ceramic, and volcanic stone heating elements have a large mass and a fine honeycomb-like internal cavity structure, which can effectively store heat. In other words, the thermal storage plate 212 can be made of ceramic, cast iron, or volcanic stone.

[0044] In one embodiment, the bottom wall of the control chamber 12 is provided with a first air vent 121, and the electric control module 300 further includes a control panel 31. The control panel 31 is provided on the top wall of the housing 100 and is arranged relative to the control chamber 12. The control panel 31 is electrically connected to the electric control board. The first air vent 121 and the air inlet 111 are both provided on the bottom wall of the housing 100. When external air enters the air inlet 111, some of the air will enter the control chamber 12 through the first air vent 121, thereby enabling the power supply component and the electric control board to be appropriately cooled. The control panel 31 is provided on the top wall of the housing 100 to facilitate user control of the control panel 31. By controlling the control panel 31, the preset value of the thermal storage thermal inertia electric heater for the ambient temperature can be set. In other embodiments, the first air vent 121 may not be provided.

[0045] In one embodiment, the electronic control module 300 further includes an ambient temperature sensor, which is located in the control chamber 12, near the first air vent 121, and electrically connected to the electronic control board. The ambient temperature sensor can detect the temperature of the gas entering the first air vent 121, and thus the temperature of the surrounding environment of the thermal storage thermal inertia electric heater, to determine whether the electronic control board needs to supply power to the thermal storage heating element 21 and the convection heating element 22, and the power supplied. When the ambient temperature reaches a preset value, the electronic control board can control the ambient temperature fluctuation range to within 1°C to 3°C. In other embodiments, the ambient temperature sensor may not be provided.

[0046] In one embodiment, the control chamber 12 is provided with a second vent 122, which is located on a side wall of the control chamber 12 away from the heat chamber 11. The second vent 122 can discharge the hotter gas in the control chamber 12 and introduce the cooler gas from the first vent 121 to lower the temperature in the control chamber 12.

[0047] The above description is merely an exemplary embodiment of the present invention and does not limit the patent scope of the present invention. All equivalent structural transformations made using the contents of the present invention specification and drawings under the technical concept of the present invention, or direct / indirect application in other related technical fields are included in the patent protection scope of the present invention.

Claims

1. A heat storage thermal inertia electric heater, characterized in that: include: A shell having a heating chamber and a control chamber formed therein, the heating chamber and the control chamber being arranged on opposite sides of the heat insulation board and distributed along the length of the shell, an air inlet being provided on the bottom wall of the heating chamber, and an air outlet being provided on the top wall of the heating chamber; a heating module, disposed in the heating chamber, comprising a thermal storage heating element and a convection heating element, wherein the convection heating element is disposed near the air inlet, and the thermal storage heating element is disposed above the convection heating element; as well as The electric control module includes an electric control board and a power supply assembly. The electric control board and at least part of the power supply assembly are arranged in the control cavity. The electric control board is electrically connected to the heating module and the power supply assembly.

2. The heat storage type thermal inertia electric heater according to claim 1, characterized in that: A convection channel is provided between the thermal storage heating element and the air outlet. The ratio of the length of the convection channel in the height direction of the shell to the height of the shell is α, and the value range of α is 3.5 to 2.

3. The heat storage type thermal inertia electric heater according to claim 1, characterized in that: The thermal storage type thermal inertia electric heater further includes a first mounting bracket, which is provided on the rear cover of the housing and is used to fix the thermal storage type heating element.

4. The heat storage type thermal inertia electric heater according to claim 3, characterized in that: The thermal storage heating element includes a heating wire and a heat storage plate. The heating wire is embedded in the heat storage plate and exposed on a side of the heat storage plate close to the rear cover of the shell. The first mounting bracket includes two mounting pins and a connecting plate connecting the two mounting pins. One mounting pin is provided on the rear cover of the shell, and the other mounting pin is connected to the heat storage plate. The connecting plate extends along the thickness direction of the shell.

5. The heat storage type thermal inertia electric heater according to claim 3, characterized in that: The thermal storage type thermal inertia electric heater further includes a second mounting bracket, which is provided on the rear cover of the housing and is used to fix the convection heating element.

6. The heat storage type thermal inertia electric heater according to claim 1, characterized in that: There are two thermal storage heating elements, and the two thermal storage heating elements are arranged along the length direction of the shell.

7. The heat storage type thermal inertia electric heater according to claim 6, characterized in that: The total mass of the two thermal storage heating elements ranges from 1 kg to 100 kg.

8. The heat storage type thermal inertia electric heater according to claim 7, characterized in that: The thermal storage heating element includes a ceramic heating element, a cast iron heating element, or a volcanic stone heating element; And / or, the convection heating element includes an aluminum extruded heating element.

9. The heat storage type thermal inertia electric heater according to claim 1, characterized in that: The bottom wall of the control cavity is provided with a first air vent. The electric control module further comprises a control panel, which is provided on the top wall of the shell and arranged relative to the control cavity. The control panel is electrically connected to the electric control board.

10. The heat storage type thermal inertia electric heater according to claim 9, characterized in that: The electric control module further includes an ambient temperature sensor, which is disposed in the control cavity, close to the first air vent, and electrically connected to the electric control board; And / or, the control cavity is provided with a second air vent, and the second air vent is provided on the side wall of the control cavity away from the heating cavity.

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