CN212565972U - Electric heating element, electric heating device and electric heater - Google Patents
Electric heating element, electric heating device and electric heater Download PDFInfo
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- CN212565972U CN212565972U CN202022002178.3U CN202022002178U CN212565972U CN 212565972 U CN212565972 U CN 212565972U CN 202022002178 U CN202022002178 U CN 202022002178U CN 212565972 U CN212565972 U CN 212565972U
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Abstract
The utility model relates to an electrical heating technical field especially relates to an electric heating element, electric heating device and electric heater, and this electric heating element includes platelike fin and end panel, wherein: the fins are fixedly connected with the end face plate, and a certain included angle is formed between the fins and the end face plate. In the technical scheme of the utility model, after a plurality of electric heating elements are assembled, the end plates are assembled into the radiation plates, the fins in the electric heating elements provide heat for convection air, and meanwhile, a part of heat is radiated outwards through the radiation plates, thus realizing both convection heat supply and radiation heat supply; in addition, the radiation plate is integrally flat and positioned on one side of the fin, so that the radiation plate has higher heat radiation efficiency and is convenient for surface spraying operation.
Description
Technical Field
The utility model relates to an electrical heating technical field especially relates to an electric heating element, electric heating device and electric heater.
Background
Convection type electric heater is one of electrical heating equipment, and it utilizes the aerodynamics principle to make the heating installation from lower supreme natural convection, and cold air (air that relative temperature is low) gets into the electric heater by the air inlet of below promptly, heaies up after with the inside heating structure heat transfer of electric heater, discharges by the gas outlet of top again, so circulate, reaches the purpose that improves the room temperature.
The heating structure comprises an electric heating tube and a plurality of fins arranged on the electric heating tube, and air flow channels are formed among the fins at intervals. The electric heating pipe is heated after being electrified, the heat of the electric heating pipe is transferred to the fins, and the airflow and the fins exchange heat in the airflow channel, so that the temperature is raised. At present, in order to further improve the multifunctionality of electric heater, adopt the mode of spraying graphite alkene, increase the heat radiation ability of fin for can the convection current formula electric heater heat-rising, still can radiate local heating.
In the prior art, the fins are of a sheet structure, the graphene material is sprayed on the opposite sides of the two fins, and heat generated by the fins is radiated to the fins on the opposite sides in a normal direction, so that the heat is not easy to be transferred outwards, and the radiating effect of the electric heater is poor; in addition, the graphene material needs to be sprayed after the heating structure is manufactured and molded, and the interval between the fins is small, so that the spraying operation is inconvenient, and the waste of the graphene material is caused.
SUMMERY OF THE UTILITY MODEL
The utility model provides an electric heating element, an electric heating device and an electric heater, after a plurality of electric heating elements are assembled, end panels are assembled into a radiation plate, fins in the electric heating element provide heat for convection air, and meanwhile, a part of heat is radiated outwards through the radiation plate, thus realizing both convection heat supply and radiation heat supply; in addition, the radiation plate is integrally flat and positioned on one side of the fin, so that the radiation plate has higher radiation efficiency and is convenient for spraying operation.
The utility model discloses an aspect provides an electric heating element, including platelike fin and end panel, wherein: the fins are fixedly connected with the end face plate, and a certain included angle is formed between the fins and the end face plate.
Optionally, the fins are 1 or 2 pieces, with the edges connected to the edges of the end plates.
Optionally, the fin is 1 piece with its edges attached to the middle of the end plate.
Optionally, the fins are 2 or more pieces with edges attached to the middle and/or edges of the end plates.
Optionally, the fin comprises a body portion and an extension portion, the body portion having a width greater than a width of the extension portion.
Optionally, the side of the end plate remote from the fins is provided with a coating for enhancing heat radiation
Optionally, the coating for enhancing thermal radiation is a graphene coating or a far infrared coating.
Optionally, the fin includes a connection hole for connecting the electric heating tube.
The utility model discloses another aspect still provides an electric heating device, including the electrothermal tube and a plurality of above-mentioned electric heating element, wherein: the fins are arranged in parallel at intervals, and the electric heating pipe penetrates through the plate surfaces of the fins; a plurality of end plates are located the same one side of a plurality of fins, and the radiation plate is assembled to the polylith end plate.
Optionally, the ends of adjacent end panels are butted or overlapped or provided with a defined spacing.
In another aspect of the present invention, there is also provided an electric heater, which comprises a casing, wherein the electric heating device is arranged inside the casing; wherein the radiation plate is parallel to the panel of the housing.
Optionally, the panel is provided with heat dissipation holes.
Optionally, the housing further includes a reflective plate, the reflective plate is located between the electric heating device and the back plate of the housing, and a side of the reflective plate facing the electric heating device is provided with a reflective coating.
Drawings
For purposes of illustration and not limitation, the present invention will now be described in accordance with its preferred embodiments, particularly with reference to the accompanying drawings, in which:
fig. 1 is a schematic structural diagram of an electric heating element provided in an embodiment of the present invention;
FIG. 2a is one of the side views of an electrical heating element provided by an embodiment of the present invention;
fig. 2b is a second side view of the electric heating element provided by the embodiment of the present invention;
fig. 2c is a third side view of the electric heating element according to the embodiment of the present invention;
fig. 2d is a fourth side view of the electric heating element provided by the embodiment of the present invention;
FIG. 3 is a schematic structural view of an electric heating apparatus provided in an embodiment of the present invention;
fig. 4 is a cross-sectional view of an electric heater provided by the embodiment of the present invention;
fig. 5 is a schematic view of heat dissipation of an electric heater provided by the embodiment of the present invention;
FIG. 6 is a flow chart of a method for manufacturing an electric heating device according to an embodiment of the present invention;
fig. 7 is another flowchart of a method for manufacturing an electric heating apparatus according to an embodiment of the present invention.
In the figure:
1: a fin; 2: an end panel; 3: an electric heating tube; 4: a radiation plate; 5: a housing; 6: an air inlet; 7: an air outlet; 8: a reflective plate; 11: a body portion; 12: an extension portion; 13: and connecting the holes.
Detailed Description
The utility model discloses in the embodiment, connect the end panel on the fin, a plurality of end panels can assemble into the radiation panel, utilize the directional radiant heat of radiation panel, make the fin can be for convection air heat supply, still radiational heat supply, in addition, the radiation panel is located one side of fin, has higher radiation effect, and makes things convenient for the spraying operation, the following concrete explanation.
Fig. 1 is a schematic structural diagram of an electric heating element provided by an embodiment of the present invention. As shown in fig. 1, the electric heating element comprises plate-shaped fins 1 and end plates 2, wherein: the fins 1 are fixedly connected with the end plates 2, and a certain included angle is formed between the fins and the end plates, and the included angle is preferably a right angle or tends to be a right angle. The end panels 2 are able to transfer heat outwards in a radiant manner. In the electric heating element shown in fig. 1, one end of the fin 1 is provided with an end plate 2, wherein the end plate 2 may also be provided at both ends (opposite ends) of the fin 1.
The electric heating elements are used for assembling to form the electric heating device, when a plurality of electric heating elements are assembled, a plurality of end plates 2 are required to be assembled into a radiation plate 4 which tends to be flat, and under the condition that the above conditions are met, the combination of the fins 1 and the end plates 2 can be in various forms. Fig. 2a is one of the side views of the electric heating element provided by the embodiment of the present invention. As shown in fig. 2a, the electric heating element comprises 1 fin 1, the edge of the fin 1 is connected with the edge of an end plate 2, and the two form an inverted L shape. Fig. 2b is a second side view of the electric heating element according to the embodiment of the present invention. As shown in fig. 2b, the electric heating element comprises 2 fins 1, the edges of the two fins 1 are respectively connected with the two edges of the end plate 2, and the three fins form a n shape, or the two fins 1 are not connected with the edges of the end plate 2 and move inwards to form the n shape, or one fin 1 is connected with the edges of the end plate 2, the other fin 1 is connected with the non-edges of the end plate 2, and the shape of the combination also meets the use requirement. Fig. 2c is a third side view of the electric heating element according to the embodiment of the present invention. As shown in fig. 2c, the electric heating element comprises 1 fin 1, the edge of the fin 1 is connected to the middle of the end plate 2, and the two form a T shape. Fig. 2d is a fourth side view of the electric heating element according to the embodiment of the present invention. As shown in fig. 2d, the electric heating element comprises 3 fins 1, and 3 fins 1 are respectively connected with the middle of the end plate 2. The structure of electric heating element is not limited to above-mentioned arrangement form, to satisfying fin 1 convection current ventilation to can assemble into fin 1 and the end panel 2 structure of radiant panel 4 and all can use the utility model discloses in the embodiment.
In the embodiment of the present invention, the fin 1 includes a main body portion 11 and an extension portion 12, and the width of the main body portion 11 is greater than the width of the extension portion 12. The extension part 12 can increase the height of the fin 1, so that the flow stroke of the convection air can be increased, and the heat exchange between the convection air and the fin 1 is more sufficient; in addition, setting the width of the extended portion 12 relatively narrow can reduce the cost of the fin 1. Preferably, a connection hole 13 for connecting the electric heating tube 3 is provided on the body portion 11. The connecting holes 13 include a plurality of connecting holes 13, the electric heating tube 3 is connected with the fin 1 by penetrating through the connecting holes 13, wherein, the aperture of the connecting hole 13 is slightly larger than the diameter of the electric heating tube 3, one side of the connecting hole 13 is provided with a cylindrical bulge which is vertical to the surface of the main body part 11, the electric heating tube 3 simultaneously penetrates through the bulge when being connected with the main body part 11, and the inner wall of the bulge is attached to the electric heating tube 3, thereby realizing heat transfer. By arranging the protrusion, not only the contact area between the electric heating tube 3 and the main body part 11 is increased and the heat transfer effect is improved, but also the thermal barrier and the cold shrinkage of the electric heating tube 3 are not limited.
In order to improve the heat radiation capability of the end panel 2, a coating layer for enhancing heat radiation, which is favorable for heat dissipation, may be sprayed on the surface layer thereof, and preferably, the material of the coating layer for enhancing heat radiation is graphene or a far infrared coating layer. The end face plate 2 can increase the heat radiation capacity of the electric heating element, is structurally located on one side of the fin 1, not only facilitates spraying operation, but also prevents waste of spraying raw materials.
Fig. 3 is a schematic structural view of an electric heating device provided in an embodiment of the present invention. As shown in fig. 3, the electric heating device comprises an electric heating tube 3 and a plurality of electric heating elements, wherein: the fins 1 are arranged in parallel at intervals, and the electric heating pipe 3 penetrates through the plate surfaces of the fins 1; a plurality of end plates 2 are located the same one side of a plurality of fins 1, and a plurality of end plates 2 are assembled to form a radiation plate 4. The embodiment of the utility model provides an electric heating device can provide the heat for the convection air, also can utilize 4 outside radiant heat of radiant panel, has the multifunctionality. The shape of the radiation plate 4 can be various forms, such as butt joint or lap joint between the ends of the end plates 2 or defined intervals, that is, the radiation plate 4 can be a continuous plane structure, a discontinuous plane structure, or a non-flat structure.
In the embodiment of the utility model, a plurality of electric heating elements form an electric heating device, adjacent fins 1 are arranged at intervals, and a radiation plate 4 is positioned at one side of the fins 1, so that the structure can ensure that radiation has the capability of radiating heat outwards, and when a user is around the electric heating device, the user can use heat radiation to heat; meanwhile, the radiation plate 4 is laterally arranged, so that heat can be radiated outwards more conveniently, and the radiation heating effect is better; in addition, the radiation surface of the whole radiation plate 4 is exposed outside the electric heating device, so that the spraying operation is facilitated, the rapid spraying is realized, the repeated spraying is not needed, and the spraying material is saved.
Fig. 4 is a cross-sectional view of the electric heater provided by the embodiment of the present invention. Fig. 5 is a schematic view of heat dispersion of an electric heater provided by the embodiment of the present invention. As shown in fig. 4 and 5, the electric heater includes a housing 5, and an electric heating device is disposed inside the housing 5; wherein the radiation plate 4 is parallel to the panel of the housing 5. The bottom of the shell 5 is provided with an air inlet 6, the top of the shell or the upper part of the panel is provided with an air outlet 7 (the air outlet 7 is arranged on the upper part of the panel in fig. 4 and 5), cold air (air with relatively low temperature) enters the shell 5 from the air inlet 6, the temperature of the air flow is increased after the air flow is contacted with the fins 1 for heat exchange, and finally the air flow is exhausted from the air outlet 7 after rising, so that the circulation is carried out, the indoor air is continuously increased, and the purpose of adjusting the indoor temperature can be achieved. In addition, the radiation plate 4 radiates heat to the panel of the shell 5, preferably, the panel is provided with heat radiation holes, and the part of heat is radiated to the periphery of the electric heater, so that the purpose of radiation heating is achieved.
In the electric heater shown in fig. 4 and 5, the electric heater further includes a reflection plate 8, the reflection plate 8 is close to the back plate position (the side far away from the heat dissipation holes) of the casing 5, a reflection coating is disposed on the side of the reflection plate 8 facing the electric heating device, and the area of the reflection coating is not smaller than the area of the side surface of the electric heating device. Can be with the heat in the casing 5 towards electric heating device and louvre direction reflection through setting up reflecting plate 8, can improve the heating effect on the one hand, on the other hand can also avoid casing 5's backplate overheated.
Compared with the traditional convection radiation electric heater, the electric heater provided by the embodiment of the utility model has the advantages that the radiation plate 4 is formed on one side of the fin 1, and the radiation plate 4 has stronger radiation capability, so that the heating effect can be improved; in addition, generally, the radiation plate 4 needs to be coated with the graphene material, the radiation plate 4 is easy to coat, rapid coating can be realized, and waste of coating raw materials is not easy to cause.
Fig. 6 is a flowchart of a method for manufacturing an electric heating apparatus according to an embodiment of the present invention. As shown in fig. 6, an embodiment of the present invention provides a method for manufacturing an electric heating apparatus, including the following steps; step S1: one end of the fin 1 is provided with an end plate 2, and the end plate and the fin form a certain included angle; step S2: a plurality of fins 1 are connected to an electric heating tube 3, the fins 1 are arranged in parallel at intervals, the electric heating tube 3 sequentially penetrates through the fins 1, and a plurality of end face plates 2 are positioned on the same side of the fins 1 and are assembled to form a radiation plate 4. Fig. 7 is another flowchart of a method for manufacturing an electric heating apparatus according to an embodiment of the present invention. As shown in fig. 7, in addition to the above-mentioned manufacturing method, the manufacturing method of the electric heating apparatus further includes step S3: a coating for enhancing the heat radiation is sprayed on the side of the end plate 2 remote from the fin 1.
The above detailed description does not limit the scope of the present invention. Those skilled in the art will appreciate that various modifications, combinations, sub-combinations, and substitutions can occur, depending on design requirements and other factors. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (13)
1. An electric heating element, characterized in that it comprises plate-shaped fins (1) and end plates (2), wherein:
the fins (1) are fixedly connected with the end face plate (2) and form a certain included angle.
2. An electric heating element according to claim 1,
the fins (1) are 1 or 2 and the edges of the fins are connected with the edges of the end plates (2).
3. An electric heating element according to claim 1,
the fins (1) are 1 piece, and the edges of the fins are connected to the middle of the end plate (2).
4. An electric heating element according to claim 1,
the fins (1) are more than 2, and the edges of the fins are connected to the middle and/or the edges of the end plates (2).
5. An electric heating element according to any one of claims 1 to 4, characterised in that the fin (1) comprises a main portion (11) and an extension portion (12), the width of the main portion (11) being greater than the width of the extension portion (12).
6. An electric heating element according to any one of claims 1 to 4, characterised in that the side of the end plate (2) remote from the fins (1) is provided with a coating for enhancing the heat radiation.
7. An electric heating element according to claim 6, characterized in that the coating for enhancing heat radiation is a graphene coating or a far infrared coating.
8. An electric heating element according to any one of claims 1-4, characterized in that the fin (1) comprises connection holes for connection of electric heating tubes.
9. An electric heating device, characterized in that it comprises an electric heating tube (3) and a plurality of electric heating elements according to any one of claims 1 to 8, wherein:
the fins (1) are arranged in parallel at intervals, and the electric heating pipe (3) penetrates through the plate surfaces of the fins (1);
a plurality of end plates (2) are located on the same side of the plurality of fins (1), and the plurality of end plates (2) are assembled to form the radiation plate (4).
10. An electric heating device according to claim 9, characterized in that the end portions of adjacent end panels (2) are butted or overlapped or provided with a defined spacing.
11. An electric heater, characterized in that it comprises a casing (5), inside the casing (5) there is an electric heating device according to claim 8 or 9;
wherein the radiation plate (4) is parallel to the panel of the housing (5).
12. The electric heater according to claim 11, wherein the panel is provided with heat dissipation holes.
13. The electric heater according to claim 11, characterized in that the housing (5) further comprises a reflective plate (8), the reflective plate (8) is located between the electric heating device and the back plate of the housing (5), and a reflective coating is provided on a side of the reflective plate (8) facing the electric heating device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022002178.3U CN212565972U (en) | 2020-09-14 | 2020-09-14 | Electric heating element, electric heating device and electric heater |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022002178.3U CN212565972U (en) | 2020-09-14 | 2020-09-14 | Electric heating element, electric heating device and electric heater |
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| Publication Number | Publication Date |
|---|---|
| CN212565972U true CN212565972U (en) | 2021-02-19 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202022002178.3U Active CN212565972U (en) | 2020-09-14 | 2020-09-14 | Electric heating element, electric heating device and electric heater |
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| CN (1) | CN212565972U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112146152A (en) * | 2020-09-14 | 2020-12-29 | 北京智米科技有限公司 | Electric heating element, electric heating device, manufacturing method of electric heating device and electric heater |
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2020
- 2020-09-14 CN CN202022002178.3U patent/CN212565972U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112146152A (en) * | 2020-09-14 | 2020-12-29 | 北京智米科技有限公司 | Electric heating element, electric heating device, manufacturing method of electric heating device and electric heater |
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