Water injection type convection radiation heat dissipation electric heater

Abstract

The utility model discloses a water injection type convection radiation heat dissipation electric heater, and relates to the field of electric heaters, the electric heater comprises a front heat exchange plate, a rear heat exchange plate opposite to the front heat exchange plate in a spaced mode, a heating assembly and an expansion water tank, and the heating assembly and the expansion water tank are communicated with the front heat exchange plate and the rear heat exchange plate respectively; the front heat exchange plate and the rear heat exchange plate are each of a hollow structure, and heat exchange cavities are formed in the front heat exchange plate and the rear heat exchange plate. The two sides of the installation position are sealed through side plates, and a control assembly is installed on one side plate. And a heat dissipation baffle is mounted at the upper end of the mounting position. The electric heater does not need to be connected into a heat supply pipe network, comfortable experience similar to pipe network heat supply is provided, meanwhile, the heat dissipation structure is optimized, the heat dissipation effect is greatly improved, and heat can be more evenly distributed in a whole room.

Description

Technical Field

[0001] This application relates to the field of electric heaters, especially a water-filled convection-radiation heat dissipation electric heater. Background Art

[0002] Existing electric heater devices have some deficiencies in specific application scenarios, especially in terms of poor heat dissipation effect, resulting in a slow heat exchange rate. This problem is particularly obvious in cold winters or in some areas where it is inconvenient to connect to the heating pipe network, such as rural or remote areas. In these places, users usually rely on electric heater devices to solve the heating problem. However, due to the low heat dissipation efficiency of existing devices, the indoor temperature rises slowly, unable to meet the users' demand for rapid and uniform heating.

[0003] Traditional electric heater devices often neglect the importance of efficient heat dissipation and safety protection in their designs. During the heating process, the pressure inside the device tends to gradually increase. Especially during long-term use, if there are no effective safety measures, it may cause device failures or potential safety accidents. This situation is more prominent when the device has a long service life or is not maintained in a timely manner.

[0004] To address these problems, it has become an inevitable trend to develop a water-filled convection-radiation heat dissipation electric heater. Summary of the Utility Model

[0005] The purpose of this application is to at least overcome one deficiency existing in the prior art, and provide a water-filled convection-radiation heat dissipation electric heater. This electric heater does not need to be connected to the heating pipe network, providing a comfortable experience similar to pipe network heating. At the same time, the heat dissipation structure is optimized, greatly improving the heat dissipation effect, enabling the heat to be more evenly distributed throughout the room.

[0006] To achieve the above purpose, this application discloses a water-filled convection-radiation heat dissipation electric heater, which includes a front heat exchange plate, a rear heat exchange plate spaced opposite to the front heat exchange plate, and a heating component and an expansion tank respectively communicating with the front heat exchange plate and the rear heat exchange plate. Among them:

[0007] An installation position is formed by the spacing between the front heat exchange plate and the rear heat exchange plate, and both the front heat exchange plate and the rear heat exchange plate are hollow structures, forming a heat exchange cavity inside.

[0008] Both sides of the installation position are sealed by side plates, and a control component is installed on one of the side plates.

[0009] A heat dissipation baffle is installed at the upper end of the installation position.

[0010] The heating component and the expansion tank are respectively located at both ends of the installation position; the heating component includes a water tank, a heating module located in the water tank and connected to the control component, and temperature sensors located at the upper and middle parts of the water tank.

[0011] The temperature sensors are connected to the control component and send the temperature information inside the water tank to the control component.

[0012] A safety valve is installed on the upper part of the expansion tank, and this safety valve is used for pressure relief.

[0013] In some embodiments, a plurality of heat dissipation holes for convective heat dissipation are provided on the heat dissipation baffle, and the edges of the heat dissipation holes are bent inwards to form a flow guiding structure, which improves the gas convection efficiency.

[0014] In some embodiments, a plurality of heat exchange fins are provided on one side of the installation position where the front heat exchange plate and the rear heat exchange plate are located, and the fins are in a flared U-shaped.

[0015] In some embodiments, the outer sides of the front heat exchange plate and the rear heat exchange plate have a concave-convex structure, which divides the internal cavity into connected flow channels to increase the radiation heat exchange area of the outer surface.

[0016] In some embodiments, the expansion tank includes a cuboid-shaped box body and a working pipe vertically penetrating the box body. At least one opening is provided at a position close to the middle of the box body for a section of the working pipe inside the box body. Liquid is injected into the box body through this opening, and the space from the opening to the top of the box body is used as an expansion absorption space to achieve the expansion absorption function and reduce the pressure on the main body due to the increase in the volume of water caused by the temperature rise.

[0017] Compared with the prior art, the present application has at least the following beneficial effects:

[0018] 1. Improve the heat dissipation efficiency: By setting heat dissipation holes on the heat dissipation baffle and forming a flow guiding structure, the convective heat dissipation effect of the gas is effectively enhanced, and the overall heat dissipation efficiency of the electric heater is improved.

[0019] 2. Enhance the heat radiation: The concave-convex structure design on the outer sides of the front and rear heat exchange plates increases the radiation heat exchange area, making the heat radiation effect more obvious and helping to heat the room faster.

[0020] 3. Reliable temperature control and safety: Through the cooperation of the temperature sensors and the control component, the real-time monitoring and adjustment of the temperature inside the water tank are realized, ensuring the stable operation of the electric heater. At the same time, the design of the safety valve provides further pressure relief protection for the system, improving the safety of the equipment.

[0021] The beneficial effects listed above do not exhaust all the advantages. Other potential beneficial effects and detailed technical implementation manners will be further revealed in the embodiments or other description parts of the present application. Brief Description of the Drawings

[0022] After reading the following detailed description in conjunction with the accompanying drawings, various aspects of the present disclosure will be better understood. In the accompanying drawings, the positions, dimensions, ranges, etc. of the various structures shown sometimes do not represent the actual positions, dimensions, ranges, etc. In the drawings:

[0023] Figure 1 is a schematic structural diagram of an embodiment disclosed in the present application, and the heat dissipation baffle and side plates are omitted in the figure.

[0024] Figure 2 is a schematic internal structural diagram of an embodiment disclosed in the present application, and the heat exchange fins and the front heat exchange plate are omitted in the figure.

[0025] Figure 3 is a schematic structural diagram of an embodiment of the present application from another perspective, and the heat dissipation baffle and side plates are omitted and partially cut open in the figure.

[0026] Figure 4 is a schematic structural diagram of the heat dissipation baffle in an embodiment disclosed in the present application.

[0027] Figure 5 is a partial structural schematic diagram of the heat dissipation baffle in an embodiment disclosed in the present application from another perspective. Detailed Description of the Embodiments

[0028] The present disclosure will be described below with reference to the accompanying drawings, in which several embodiments of the present disclosure are shown. However, it should be understood that the present disclosure can be presented in many different ways and is not limited to the embodiments described below; in fact, the embodiments described below are intended to make the disclosure of the present disclosure more complete and to fully explain the protection scope of the present disclosure to those skilled in the art. It should also be understood that the embodiments disclosed herein can be combined in various ways to provide more additional embodiments.

[0029] It should be understood that in all the drawings, the same reference numerals represent the same elements. In the drawings, for clarity, the dimensions of some features may be deformed.

[0030] It should be understood that the terminology used in the specification is only for describing specific embodiments and is not intended to limit the present disclosure. All terms used in the specification (including technical terms and scientific terms) have the meanings commonly understood by those skilled in the art unless otherwise defined. For the sake of brevity and / or clarity, technologies, methods, and devices known to those of ordinary skill in the relevant fields may not be discussed in detail, but in appropriate cases, the said technologies, methods, and devices should be regarded as part of the authorized specification.

[0031] As used in the specification, the singular forms "a", "the", and "said" include the plural forms unless clearly indicated otherwise. The terms "comprising", "including", and "containing" as used in the specification denote the presence of the claimed features, but do not preclude the presence of one or more other features. The term "and / or" as used in the specification includes any and all combinations of one or more of the related listed items. Embodiment

[0032] As Figures 1 to 5 shown, this embodiment discloses a water-injected convection-radiation heat-dissipating electric heater. The electric heater mainly comprises the following structural components: a front heat exchange plate 1, a rear heat exchange plate 2, a heating assembly 3, an expansion tank 4, a control assembly 5, side plates 6, heat dissipation baffles 7, heat exchange fins 8, and a safety valve 9.

[0033] In the above structure, the front heat exchange plate 1 and the rear heat exchange plate 2 are separated from each other by a plurality of spacers to form an installation position 10. Both sides of the installation position 10 are sealed by side plates 6, and the side plates 6 are made of a metal material with high temperature resistance and corrosion resistance to ensure the structural strength and airtightness of the entire device.

[0034] In this embodiment, both the front heat exchange plate 1 and the rear heat exchange plate 2 are of a hollow structure, and these hollow parts form a heat exchange cavity 11 inside. The heat exchange cavity 11 is designed to accommodate a liquid heat medium, and through communication with the heating assembly 3 and the expansion tank 4, heat conduction and dissipation are achieved.

[0035] More specifically, the outer sides of the front heat exchange plate 1 and the rear heat exchange plate 2 are both designed with a complex concave-convex structure. This concave-convex structure is not just a simple surface texture. Specifically, it is a combination of a number of raised and recessed parts arranged alternately. These raised and recessed parts intersect with each other and are distributed on the outer side of the heat exchange plate at specific intervals and angles. Through this structure, a multi-level and multi-directional heat exchange flow channel network is formed between the concave-convex regions, which not only ensures the smooth flow of the liquid heat medium in the internal cavity, but also enhances the heat conduction path through the interconnection between the flow channels. Inside the flow channels, the heat medium can be evenly distributed and circulated, ensuring the rapid diffusion of heat across the entire surface of the heat exchange plate. In addition, due to the increase in the concave-convex structure on the outer surface, the effective surface area of the heat exchange plate increases significantly, and the contact area between the external air and the heat exchange plate also increases accordingly, further improving the heat dissipation efficiency. These designs enable the heat exchange plate to transfer heat to the external environment more efficiently in a radiation and convection manner, especially suitable for scenarios with high heat dissipation requirements.

[0036] Furthermore, the outer surfaces of the front heat exchange plate 1 and the rear heat exchange plate 2 are designed with a concave-convex structure, and these concave-convex surfaces increase the heat dissipation area, enabling heat to be quickly dissipated into the room by radiation.

[0037] In this embodiment, the heating component 3 is installed at one end of the installation position 10, and it includes a water tank 12 with a heating module 13 installed inside. The heating module 13 is made of high-efficiency electric heating elements and is connected to the control component 5 through a cable. The heating element of the heating module 13 is in direct contact with the liquid heat medium inside the water tank 12. When the heating module 13 is powered on, the heat medium is quickly heated to the preset temperature.

[0038] Furthermore, the control component 5 has a built-in temperature control circuit board and a power supply circuit, and can receive and process in real time the temperature information fed back by the temperature sensor in the water tank and output the working current for controlling the operation of the heating module 13.

[0039] The temperature sensors 14 are located in the middle and upper part of the water tank 12, mainly used to detect the temperature of the liquid heat medium and transmit the temperature signal to the control component 5 in real time. The control component 5 dynamically adjusts the heating power of the heating module 13 according to these signals to maintain the heat medium within the set temperature range.

[0040] In this embodiment, the expansion water tank 4 is installed at the other end of the installation position 10. The expansion water tank 4 is directly connected to the heat exchange chamber 11 and is internally designed with an expansion chamber for accommodating the liquid heat medium whose volume expands after heating. A safety valve 9 is installed on the upper part of the expansion water tank 4.

[0041] Specifically, the expansion water tank 4 is made of high-strength pressure-resistant material and can remain stable for a long time in a high-temperature and high-pressure environment. The design purpose of the expansion chamber is to provide sufficient buffer space when the liquid heat medium expands, preventing the internal pressure of the system from being too high and causing safety problems. Through the liquid level adjustment of the expansion water tank 4, the system can automatically adapt to the volume change of the heat medium, thereby keeping the heat medium circulation in the heat exchange chamber 11 stable.

[0042] It should be understood that in this embodiment, the safety valve 9 adopts a spring-loaded design and can automatically open when the system pressure exceeds the preset value to release the excess liquid heat medium / gas, thereby reducing the internal pressure of the system. The design purpose of the safety valve 9 is to release the pressure through the safety valve 9 when the expansion water tank 4 cannot effectively absorb the pressure generated by the expansion of the heat medium during the heating process, preventing the equipment from being damaged due to overpressure and ensuring the safe operation of the electric heater.

[0043] More specifically, the expansion tank 4 is designed with a regular cubic box structure. Its box body is made of high-strength and high-temperature-resistant materials and can work stably for a long time under high-temperature and high-pressure conditions. Inside the expansion tank, there is a working pipe 15 vertically penetrating the entire box body. The pipe wall of the working pipe 15 is made of corrosion-resistant metal or alloy materials to ensure that the liquid heat medium can flow for a long time without being affected by corrosion. At least one opening 16 with a moderate diameter is provided at a position near the middle of the box body. This opening 16 is designed as a fluid injection port, through which the liquid heat medium can be conveniently injected into the expansion tank. The space below the opening 16 is used to store the liquid heat medium during normal operation, while the space from the opening 16 to the top of the box body is the empty expansion absorption space.

[0044] When the liquid heat medium expands due to heat during the operation of the system, the expanded heat medium will enter the expansion absorption space through the opening 16. The design of this space can accommodate the increased liquid volume due to thermal expansion and contraction, avoiding excessive pressure in the system. In addition, through the connection design with the working pipe 15, the expansion tank 4 can effectively buffer the pressure fluctuations generated by the expansion of the heat medium during operation, ensuring the smooth circulation of the liquid heat medium, avoiding liquid impact or bubble formation, and thus preventing unnecessary stress concentration or pressure overload problems inside the system. Through this design, the expansion tank 4 not only has the functions of storage and expansion absorption, but also can provide a stable pressure regulation mechanism for the system through a reasonable structural layout, ensuring the long-term safe operation of the electric heater in a high-temperature and high-pressure environment.

[0045] To further improve the convective heat transfer effect, in this embodiment, the heat exchange fins 8 are installed on one side of the front heat exchange plate 1 and the rear heat exchange plate 2. The heat exchange fins 8 are made of high-thermal-conductivity metal materials and the surfaces are treated with anti-corrosion. Each fin is designed in a U-shaped structure. The bottom of the heat exchange fins 8 is in close contact with the corresponding front heat exchange plate 1 / rear heat exchange plate 2. The U-shaped heat exchange fins 8 can effectively increase the contact area between the air flow and the heat exchange surface, thereby enhancing the air convective heat transfer effect.

[0046] In this embodiment, the heat dissipation baffle 7 is installed at the upper ends of the front heat exchange plate 1 and the rear heat exchange plate 2 to guide and control the flow path of the air flow. The heat dissipation baffle 7 is made of metal or high-strength metal materials, and a number of heat dissipation holes 14 are provided on the surface. The edges of the heat dissipation holes 14 are bent to form an inwardly concave flow guiding structure, aiming to enhance the air flow guiding property and improve the efficiency of air convection. The heat dissipation baffle 7 effectively controls the flow direction of the air flow inside the electric heater, enabling the cold air to quickly enter the device for heat exchange, and at the same time ensuring that the hot air can smoothly discharge from the device.

[0047] In this embodiment, the electric heater can achieve fast and uniform heating effects through reasonable structural design and an efficient heat medium circulation system. The setting of the expansion tank 4 and the safety valve 9 ensures the stability and safety of the system in a high-temperature and high-pressure environment. This electric heater is particularly suitable for places that require long-term heating in winter, can provide stable and lasting heat output, and effectively improve the comfort of the living environment.

[0048] Although the exemplary embodiments of the present disclosure have been described, those skilled in the art should understand that various changes and modifications can be made to the exemplary embodiments of the present disclosure without substantially departing from the spirit and scope of the present disclosure. Therefore, all changes and modifications are included within the protection scope of the present disclosure defined by the claims. The present disclosure is defined by the appended claims, and equivalents of these claims are also included.

Claims

1. A water-filled convection radiation heat dissipation electric heater, characterized in that: The electric heater comprises: a front heat exchange plate, a rear heat exchange plate spaced opposite to the front heat exchange plate, and a heating assembly and an expansion water tank respectively connected to the front heat exchange plate and the rear heat exchange plate, wherein: The front heat exchange plate and the rear heat exchange plate are spaced apart to form an installation position, and both the front heat exchange plate and the rear heat exchange plate are hollow structures, forming a heat exchange cavity inside; Both sides of the installation position are sealed by side panels, and a control component is installed on one side panel; A heat dissipation baffle is installed at the upper end of the installation position; The heating component and the expansion water tank are respectively located at two ends of the installation position; the heating component includes a water tank, a heating module located in the water tank and connected to the control component, and a temperature sensor located at the upper end and the middle part of the water tank; The temperature sensor is connected to the control component and sends the temperature information in the water tank to the control component; A safety valve is installed on the upper part of the expansion water tank, and the safety valve is used for pressure relief.

2. A water-filled convection radiation heat dissipation electric heater as claimed in claim 1, characterized in that: The heat dissipation baffle is provided with a plurality of heat dissipation holes for convection heat dissipation. The edges of the heat dissipation holes are bent and concave to form a guide structure to improve the gas convection efficiency.

3. A water-filled convection radiation heat dissipation electric heater as claimed in claim 1, characterized in that: A plurality of heat exchange fins are arranged on one side of the installation position of the front heat exchange plate and the rear heat exchange plate, and the fins are in an expanded U-shape.

4. A water-filled convection radiation heat dissipation electric heater as claimed in claim 1, characterized in that: The outer side surfaces of the front heat exchange plate and the rear heat exchange plate have a concave-convex structure, which divides the internal cavity into interconnected flow channels to increase the radiation heat exchange area of ​​the outer surface.

5. A water-filled convection radiation heat dissipation electric heater as claimed in claim 1, characterized in that: The expansion water tank includes a box body in the shape of a regular cube and a working pipe vertically penetrating the box body. A section of the working pipe inside the box body is provided with at least one opening near the middle of the box body. Liquid is injected into the box body through the opening, and the space from the opening to the top of the box body is used as an expansion absorption space to realize the expansion absorption function.

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