Self-generating wind heater

Abstract

This application discloses a self-generating air heater, including a housing with an air inlet and an air outlet at both ends. A heat exchange assembly is located at one end of the housing near the air outlet, and a motor assembly is located at the other end. The heat exchange assembly includes a combustion chamber and a heat exchanger covering the surface of the combustion chamber. The combustion chamber has an oil inlet pipe and an ignition plug. The motor assembly includes a heat exchange impeller and a combustion-supporting impeller that can rotate at the central axis of the housing. The combustion-supporting impeller is close to the combustion chamber, drawing combustion air into the combustion chamber. The heat exchange assembly also includes a thermoelectric generator and heat exchange plates. The thermoelectric generator covers the surface of the heat exchanger, and the heat exchange plates cover the surface of the thermoelectric generator. The hot side of the thermoelectric generator is in close contact with the heat exchanger, and the cold side of the thermoelectric generator is in close contact with the heat exchange plates. The thermoelectric generator is connected to a battery, thereby fully utilizing the energy during heat transfer and reducing energy loss.

Description

Technical Field

[0001] This utility model relates to the field of heater equipment technology, and in particular to a self-generating air heater. Background Technology

[0002] In the prior art, when the heater is working, the heat generated by burning fuel in the combustion chamber is transferred to the heat exchanger. The heat exchange motor drives the heat exchange fan to draw in the air to be heated from the air inlet, and then removes the heat from the heat exchanger. The heated air is then blown into the environment to be heated from the air outlet. In this heat exchange process, the heat transfer cannot be fully utilized, resulting in energy loss and waste of resources. Utility Model Content

[0003] This application provides a self-generating air heater that can fully utilize the temperature difference during heat transfer to generate electricity, thereby reducing energy loss and improving energy utilization.

[0004] This application provides a self-generating air heater, including a housing with an air inlet and an air outlet at opposite ends. A heat exchange assembly is located inside the housing near the air outlet, and a motor assembly is located near the air inlet. The heat exchange assembly includes a combustion chamber and a heat exchanger covering the surface of the combustion chamber. The combustion chamber has an oil inlet pipe and an ignition plug. The motor assembly includes a heat exchange impeller and a combustion-supporting impeller rotatable at the central axis of the housing. The combustion-supporting impeller is located near the combustion chamber, drawing combustion air into the combustion chamber. The heat exchange assembly also includes a thermoelectric generator and a heat exchange plate. The thermoelectric generator covers the surface of the heat exchanger, and the heat exchange plate covers the surface of the thermoelectric generator. The hot side of the thermoelectric generator is in close contact with the heat exchanger, and the cold side is in close contact with the heat exchange plate. The thermoelectric generator is connected to a battery for storing the electrical energy generated by the thermoelectric generator.

[0005] In one possible implementation, the battery is integrated within the housing or on the surface of the housing, or the battery is an external battery.

[0006] In one possible implementation, a heat exchange motor and a combustion-supporting motor are also fixedly connected inside the housing via a motor bracket, wherein the motor shaft of the heat exchange motor is coaxially connected to the axle of the heat exchange impeller, and the motor shaft of the combustion-supporting motor is coaxially connected to the axle of the combustion-supporting impeller.

[0007] In one possible implementation, both the thermoelectric generator and the heat exchanger are located near the front end of the heat exchanger, i.e., the end furthest from the air outlet.

[0008] In one possible implementation, the semiconductor thermoelectric generator is detachably connected to the housing via a snap ring.

[0009] Beneficial effects: Compared with the prior art, the self-generating air heater provided in this application sets a semiconductor thermoelectric generator between the heat exchanger and the heat exchange plate. At the same time, the hot side of the semiconductor thermoelectric generator is in close contact with the heat exchanger, and the cold side of the semiconductor thermoelectric generator is in close contact with the heat exchange plate. Based on the Seebeck effect, it can convert heat energy into electrical energy by means of the temperature difference between the hot and cold sides. This can reduce the energy loss caused by heat transfer during the heat exchange process of the heater, improve energy utilization, and save resources.

[0010] These and other objects, features and advantages of this utility model will be fully realized through the following detailed description. Attached Figure Description

[0011] Figure 1 A three-dimensional structural schematic diagram of the self-generating air heater of this application is shown.

[0012] Figure 2 A cross-sectional structural schematic diagram of the self-generating air heater of this application is shown.

[0013] Figure 3 A partial structural schematic diagram of the self-generating air heater of this application is shown.

[0014] Figure 4 A partial structural schematic diagram of the self-generating air heater of this application is shown. Detailed Implementation

[0015] The following description is intended to disclose the present invention so that those skilled in the art can implement it. The preferred embodiments described below are merely examples, and other obvious variations will occur to those skilled in the art. The basic principles of the present invention defined in the following description can be applied to other embodiments, modifications, improvements, equivalents, and other technical solutions that do not depart from the spirit and scope of the present invention.

[0016] Those skilled in the art should understand that, in the disclosure of this specification, the terms "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, the above terms should not be construed as limitations on this utility model.

[0017] It is understood that the term "a" should be understood as "at least one" or "one or more", that is, in one embodiment, the number of an element can be one, while in another embodiment, the number of the element can be multiple, and the term "a" should not be understood as a limitation on the number.

[0018] refer to Figures 1 to 4 This application provides a self-generating air heater, including a housing 10. The housing 10 has an air inlet 101 and an air outlet 102 at opposite ends. A heat exchange assembly is located inside the housing 10 near the air outlet 102, and a motor assembly is located inside the housing 10 near the air inlet 101. The heat exchange assembly includes a combustion chamber 20 and a heat exchanger 21 covering the surface of the combustion chamber 20. The combustion chamber 20 has an oil inlet pipe 23 and an ignition plug 22. The motor assembly includes a heat exchange impeller 31 and a combustion-supporting impeller 41 rotatable at the central axis of the housing 10. The combustion-supporting impeller 41 is located near the combustion chamber 20, and combustion air is drawn into the combustion chamber 20 through the combustion-supporting impeller 41. Inside the combustion chamber 20, the heat exchange assembly further includes a thermoelectric generator 24 and a heat exchange plate 25. The thermoelectric generator 24 covers the surface of the heat exchanger 21, and the heat exchange plate 25 covers the surface of the thermoelectric generator 24. The hot side of the thermoelectric generator 24 is in close contact with the heat exchanger 21, while the cold side of the thermoelectric generator 24 is in close contact with the heat exchange plate 25. The thermoelectric generator 24 is connected to a battery for storing the electrical energy generated by the thermoelectric generator 24. The battery can be an external battery, an integrated battery inside the housing 10, or an integrated battery on the surface of the housing 10.

[0019] The working principle is roughly as follows:

[0020] When the heater is turned on, the user operates the switch or remote control. Upon receiving the power-on signal, the controller inside the housing 10 first performs a self-test. After the self-test is complete, the ignition plug 22 starts working. When the ignition plug 22 reaches its power, the oil pump receives the oil pumping signal from the controller and delivers fuel to the combustion chamber 20 through the oil inlet pipe 23. Simultaneously, the combustion air impeller 41 draws combustion air into the combustion chamber 20, mixing it with the fuel, which is then ignited by the ignition plug 22. The heat generated by the combustion of fuel in the combustion chamber 20 is transferred to the heat exchanger 21. The heat from the heat exchanger 21 is transferred to the heat exchange plates 25 via the semiconductor thermoelectric generator 24. The heat exchange impeller 31 draws the air to be heated from the air inlet 101... The heat from the heat exchanger 25 is carried away, and the heated air is blown into the environment to be heated from the air outlet 102. During this process, a temperature difference is generated between the hot and cold surfaces of the thermoelectric generator 24 by heat transfer. The Seebeck effect of the thermoelectric generator 24 is used to convert thermal energy into electrical energy, and the generated electrical energy is stored in an external battery for reuse, or stored in a battery inside or on the surface of the housing 10 for later use. In this way, the air heating function is realized, and the heat energy generated by its own heat transfer can be converted into electrical energy. This can effectively reduce the energy loss generated during the heat transfer process when the heater is heating, thereby improving energy utilization and saving resources.

[0021] In one embodiment, a heat exchange motor 30 and a combustion-supporting motor 40 are also fixedly connected inside the housing 10 via a motor bracket 11. The motor shaft of the heat exchange motor 30 is coaxially connected to the axle of the heat exchange impeller 31, and the motor shaft of the combustion-supporting motor 40 is coaxially connected to the axle of the combustion-supporting impeller 41. Compared to the conventional situation where the heat exchange impeller and the combustion-supporting impeller are driven by the same motor, preventing them from operating at different speeds, this design, where the heat exchange impeller 31 is driven by the heat exchange motor 30 and the combustion-supporting impeller 41 is driven by the combustion-supporting motor 40 respectively, allows for a greater temperature difference between the hot and cold surfaces of the thermoelectric generator 24. This enables a more efficient conversion of thermal energy into electrical energy, resulting in a higher conversion rate.

[0022] Considering that the temperature at the tail of the heat exchanger 21 will be much higher (>250℃) when the heater is operating at high power, and the thermoelectric generator 24 typically withstands temperatures up to 250℃, it is necessary to limit the heating power of the heater to ensure its normal operation. This prevents the heater from meeting higher heating demands. Therefore, in one embodiment, both the thermoelectric generator 24 and the heat exchange plate 25 are located near the front end of the heat exchanger 21, i.e., the end furthest from the air outlet 102. This ensures that the thermoelectric generator 24 can operate normally while also allowing the heater to operate at higher power, thus meeting greater heating demands.

[0023] In one embodiment, the thermoelectric generator 24 is detachably connected to the housing 10 via a snap ring 241, which facilitates the maintenance of the thermoelectric generator 24 during use.

[0024] Those skilled in the art should understand that the embodiments of the present invention described above and shown in the accompanying drawings are merely examples and do not limit the present invention. The advantages of the present invention have been fully and effectively realized. The functions and structural principles of the present invention have been shown and explained in the embodiments, and any modifications or variations may be made to the implementation of the present invention without departing from the stated principles.

Claims

1. A self-generating air heater, comprising a housing, with an air inlet and an air outlet at opposite ends of the housing, a heat exchange assembly located near the air outlet within the housing, and a motor assembly located near the air inlet; the heat exchange assembly includes a combustion chamber and a heat exchanger covering the surface of the combustion chamber; the combustion chamber has an oil inlet pipe and an ignition plug installed; the motor assembly includes a heat exchange impeller and a combustion-supporting impeller rotatable at the central axis of the housing, wherein the combustion-supporting impeller is located near the combustion chamber, and combustion-supporting air is drawn into the combustion chamber through the combustion-supporting impeller, characterized in that... The heat exchange assembly further includes a thermoelectric generator and a heat exchange plate, wherein the thermoelectric generator covers the surface of the heat exchanger, the heat exchange plate covers the surface of the thermoelectric generator, and the hot side of the thermoelectric generator is in close contact with the heat exchanger, the cold side of the thermoelectric generator is in close contact with the heat exchange plate, and the thermoelectric generator is connected to a battery for storing the electrical energy generated by the thermoelectric generator.

2. The self-generating air heater as described in claim 1, characterized in that, The battery is integrated inside the housing or on the surface of the housing, or the battery is an external battery.

3. The self-generating air heater as described in claim 1, characterized in that, The housing also contains a heat exchange motor and a combustion-supporting motor, which are fixedly connected to each other via a motor bracket. The motor shaft of the heat exchange motor is coaxially connected to the axle of the heat exchange impeller, and the motor shaft of the combustion-supporting motor is coaxially connected to the axle of the combustion-supporting impeller.

4. The self-generating air heater as described in claim 1, characterized in that, Both the thermoelectric generator and the heat exchanger are located near the front end of the heat exchanger, that is, the end furthest from the air outlet.

5. The self-generating air heater as described in claim 4, characterized in that, The thermoelectric semiconductor is detachably connected to the housing via a snap ring.

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