Electric heater

Abstract

The electric heater is characterized by comprising a left fixing plate, a right fixing plate, cooling fins, a heating pipe and limiting rods, the two sets of cooling fins are arranged between the left fixing plate and the right fixing plate, the heating pipe is installed between the two sets of cooling fins through the limiting rods, and each cooling fin is composed of a plurality of heat conduction plates and cooling fins. The heat conducting plates are sequentially connected together, one side of each heat conducting plate is arranged to be of an arc-shaped surface structure, and a plurality of heat dissipation fins are arranged on the arc-shaped surface of each heat conducting plate at intervals. The outer wall of the heating pipe is in direct contact with the groove wall of the semicircular groove of the heat conducting plate, so that the heating pipe is in direct contact with the aluminum alloy section to realize direct heat conduction, the heating speed is increased, and the surface temperature is more uniform; the outer side face of the heat conduction plate is arranged to be the arc-shaped face, the heat dissipation area of the heat dissipation fins is increased, the convection effect is improved through the multiple convection cavity channels formed in the heat conduction plate, and therefore the heat dissipation effect is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of electric heaters, in particular to an electric heater. Background Art

[0002] Electric heaters primarily work by converting electrical energy into thermal energy, using the Joule heat generated by current passing through a resistor to heat the air or other medium. The core operating principle of electric radiators is based on Joule's law, which states that when current passes through a conductor, heat is generated. This heat is transferred to the heat sink through conduction and convection, and then released into the surrounding air through radiation and convection, thereby raising the ambient temperature.

[0003] In the electric heater currently used, the heating plate is arranged in the body, and heat dissipation fins are arranged around the heating plate. However, the heat dissipated by the heat dissipation fins is concentrated in the body, and the heat dissipated from the body to the outside is dissipated through the heat dissipation vents at the upper and lower ends of the body, which makes the heat dissipation effect poor. In order to solve the above problem, an electric heater is proposed. Utility Model Content

[0004] In response to the above technical problems, the utility model provides an electric heater, in which a heating tube is installed between heat sinks made of two aluminum alloy profiles. The outer wall of the heating tube is in direct contact with the semicircular groove wall of the heat conducting plate, so that the heating tube is in direct contact with the aluminum alloy profile to achieve direct heat conduction and enhance the heat dissipation rate; and the outer side surface of the heat conducting plate is set as an arc surface to increase the heat dissipation area of ​​the heat sink, and a plurality of convection cavities are provided inside the heat conducting plate to increase the convection effect, thereby improving the heat dissipation effect.

[0005] To achieve the above purpose, the technical solution of this utility model is as follows:

[0006] The electric heater is characterized by comprising a left fixing plate, a right fixing plate, a heat sink, a heating tube and a limit rod. Two groups of heat sinks are arranged between the left fixing plate and the right fixing plate. The heating tube is installed between the two groups of heat sinks through the limit rod. The heat sink is composed of multiple heat conducting plates and heat dissipation fins. The multiple heat conducting plates are connected together in sequence. One side of the heat conducting plate is set to an arc-shaped surface structure. Multiple heat dissipation fins are arranged at intervals on the arc-shaped surface of the heat conducting plate.

[0007] The heat conducting plates at both ends of the heat sink are connected to the left fixing plate and the right fixing plate respectively through fixing screws.

[0008] The heat conducting plate is provided with a plurality of convection cavities inside, which are used to enhance air circulation and dissipate heat.

[0009] The heat conducting plate is provided with a semicircular groove, which is adapted to the heating pipe.

[0010] The two ends of the heating tube are respectively connected to the limiting rods, and the limiting rods are clamped in the clamping grooves provided on the heat conducting plate.

[0011] The upper and lower ends of the two groups of heat sinks are respectively fixed with screws to the cover plates, and the cover plates are provided with heat dissipation holes.

[0012] Specifically, the bottom ends of the left fixed plate and the right fixed plate are respectively fixedly connected to the base, and movable universal wheels are provided below the base.

[0013] Specifically, the heat conducting plate is made of aluminum alloy profile.

[0014] Specifically, a control panel is provided on the right fixing plate, and the control panel is electrically connected to the power connection line and the heating tube.

[0015] Specifically, the limiting rod is provided with a wiring groove, and the connecting wire connecting the heating tube and the control panel is arranged in the wiring groove.

[0016] Specifically, the heating tube is a stainless steel ceramic heating tube.

[0017] Specifically, the movable universal wheel has a locking function.

[0018] Beneficial effects of the utility model:

[0019] The utility model installs the heating pipe between the heat sinks made of two aluminum alloy profiles. The outer wall of the heating pipe is in direct contact with the semicircular groove wall of the heat conducting plate, so that the heating pipe is in direct contact with the aluminum alloy profile, thereby achieving direct heat conduction, improving the heating speed, enhancing the heat dissipation rate and making the surface temperature more uniform. In addition, a plurality of heat dissipation fins are arranged at intervals on the outer wall of the arc-shaped surface of the heat conducting plate to further accelerate the heat dissipation and enhance the heat dissipation rate.

[0020] The outer side of the heat conducting plate is set to an arc surface to increase the heat dissipation area of ​​the heat sink, and multiple convection cavities are provided inside the heat conducting plate to increase the convection effect, thereby improving the heat dissipation effect;

[0021] The utility model is provided with movable universal wheels at the bottom ends of the left fixing plate and the right fixing plate, so as to facilitate the moving operation of the electric heater. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 This is a schematic diagram of the overall structure of the electric heater of the present utility model;

[0023] Figure 2 This is a schematic top view of the overall structure of the electric heater of the present invention;

[0024] Figure 3 This is a schematic diagram of the exploded structure of the electric heater of the utility model with the cover removed;

[0025] Figure 4 This is a schematic diagram of the exploded structure between the two groups of radiating fins of the electric heater of the present invention with the cover removed;

[0026] Figure 5 This is a schematic diagram of the structure of the electric heater of the utility model after the two sets of heat sinks are spliced ​​together with the cover plate removed;

[0027] As shown in the figure: 1. Right fixed plate, 11. Control panel, 12. Power cable, 2. Left fixed plate, 3. Base, 4. Movable universal wheel, 51. Heat conduction plate, 511. Semicircular groove, 512. Convection cavity, 513. Card slot, 52. Heat sink fins, 6. Heat pipe, 7. Limit rod, 71. Wiring groove, 8. Cover plate, 81. Heat dissipation hole. DETAILED DESCRIPTION

[0028] The following is a clear and complete description of the technical solution of the present invention in conjunction with the accompanying drawings. Obviously, the embodiments described are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making any creative efforts are within the scope of protection of the present invention.

[0029] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating positions or relationships, are based on the positions or relationships shown in the accompanying drawings and are intended solely to facilitate the description of this utility model and simplify the description. They do not indicate or imply that the devices or components referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0030] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or a welded connection; it can be directly connected, or indirectly connected through an intermediate medium, or it can be internal communication between two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances. In addition, the technical features involved in the different embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0031] Example 1

[0032] As shown in the figure, two groups of heat sinks are arranged between the left fixed plate 2 and the right fixed plate 1. The upper and lower ends of the two groups of heat sinks are respectively fixed with cover plates 8 by screws. The cover plate 8 is provided with heat dissipation holes 81. The heat sink is composed of multiple heat conducting plates 51 and heat dissipation fins 52. The multiple heat conducting plates 51 are connected together in sequence, wherein the heat conducting plates 51 at both ends are respectively connected to the left fixed plate 2 and the right fixed plate 1 by fixing screws. The outer side surface of the heat conducting plate 51 is set to an arc surface structure to increase the heat dissipation area of ​​the heat conducting plate, and multiple heat dissipation fins 52 are arranged at intervals on the arc surface of the heat conducting plate 51 to further accelerate heat dissipation, and multiple convection cavities 512 are provided inside the heat conducting plate 51. The multiple convection cavities 512 are for enhancing air circulation for heat dissipation.

[0033] A semicircular groove 511 is provided on the inner side of the heat conducting plate 51, and the semicircular groove 511 is adapted to the heating tube 6. The inner sides of the two heat conducting plates 51 are butted together, and the two opposing semicircular grooves 511 are exactly spliced ​​into a circle. The heating tube 6 is located in a cavity formed by the two semicircular grooves 511. The heat conducting plate 51 is made of aluminum alloy, and the heating tube 6 is made of stainless steel ceramic heating tube. The outer wall of the heating tube 6 is in direct contact with the wall of the semicircular groove of the heat conducting plate 51, so that the heating tube 6 is in direct contact with the aluminum alloy profile to achieve direct heat conduction.

[0034] The upper and lower ends of the heating tube 6 are respectively connected to the limit rod 7, which is clamped in the clamping groove 513 set on the heat conducting plate 51. A wiring groove 71 is set on the limit rod 7, and the connecting line connecting the heating tube 6 and the control panel 11 can be laid in the wiring groove 71.

[0035] The bottom ends of the left fixed plate 2 and the right fixed plate 1 are fixedly connected to the base 3 respectively. A movable universal wheel 4 is provided under the base 3, and the movable universal wheel 4 has a locking function to facilitate the movement of the electric heater.

[0036] A control panel 11 is provided on the right fixed plate 1 , and the control panel 11 is electrically connected to the power connection line 12 and the heating tube 6 . When in use, the power connection line 12 is connected to the power supply equipment to power the electric heater, and the operation of the electric heater is controlled by the control panel 11 .

[0037] The above shows and describes the basic principles, main features and advantages of the present invention. The various components mentioned in the present invention are common technologies in the existing field. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are merely illustrative of the principles of the present invention. Various changes and improvements may be made to the present invention without departing from the spirit and scope of the present invention. Such changes and improvements fall within the scope of the present invention. The scope of protection claimed in this utility model is defined by the appended claims and their equivalents.

Claims

1. Electric heater, characterized by It includes a left fixed plate, a right fixed plate, a heat sink, a heating pipe and a limit rod. Two groups of heat sinks are arranged between the left fixed plate and the right fixed plate. The heating pipe is installed between the two groups of heat sinks through the limit rod. The heat sink is composed of multiple heat conducting plates and heat dissipation fins. Multiple heat conducting plates are connected together in sequence. One side of the heat conducting plate is set to an arc-shaped surface structure, and multiple heat dissipation fins are arranged at intervals on the arc-shaped surface of the heat conducting plate.

2. The electric heater according to claim 1, characterized in that The heat conducting plates at both ends of the heat sink are connected to the left fixing plate and the right fixing plate respectively through fixing screws.

3. The electric heater according to claim 1, characterized in that The heat conducting plate is provided with a semicircular groove, which is adapted to the heating pipe.

4. The electric heater according to claim 1, characterized in that Both ends of the heating tube are connected to the limiting rods respectively, and the limiting rods are clamped in the clamping grooves provided on the heat conducting plate.

5. The electric heater according to claim 1, characterized in that The upper and lower ends of the two groups of heat sinks are respectively fixed with screws to the cover plates, and the cover plates are provided with heat dissipation holes.

6. The electric heater according to claim 1, characterized in that A plurality of convection cavities are arranged inside the heat conducting plate.

7. The electric heater according to claim 1, characterized in that The bottom ends of the left fixed plate and the right fixed plate are respectively fixedly connected to the base, and movable universal wheels are arranged below the base.

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