CN108131718B - Heating element fixing device - Google Patents
Heating element fixing device Download PDFInfo
- Publication number
- CN108131718B CN108131718B CN201810133937.4A CN201810133937A CN108131718B CN 108131718 B CN108131718 B CN 108131718B CN 201810133937 A CN201810133937 A CN 201810133937A CN 108131718 B CN108131718 B CN 108131718B
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- Prior art keywords
- frame
- heat
- generating body
- fixing device
- heating element
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- 238000010438 heat treatment Methods 0.000 title claims abstract description 49
- 238000009413 insulation Methods 0.000 claims abstract description 46
- 230000003014 reinforcing effect Effects 0.000 claims description 6
- 238000009423 ventilation Methods 0.000 claims description 2
- 230000000694 effects Effects 0.000 abstract description 8
- 238000004519 manufacturing process Methods 0.000 abstract description 7
- 206010053615 Thermal burn Diseases 0.000 abstract description 2
- 239000000919 ceramic Substances 0.000 description 11
- 238000005338 heat storage Methods 0.000 description 11
- 239000011449 brick Substances 0.000 description 8
- 239000011888 foil Substances 0.000 description 7
- 238000010586 diagram Methods 0.000 description 3
- 238000006073 displacement reaction Methods 0.000 description 3
- 238000004080 punching Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 2
- 239000002893 slag Substances 0.000 description 2
- 229910001018 Cast iron Inorganic materials 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- 230000017525 heat dissipation Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 238000013021 overheating Methods 0.000 description 1
- 238000010422 painting Methods 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 230000000191 radiation effect Effects 0.000 description 1
- 239000013049 sediment Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 230000003245 working effect Effects 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24D—DOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
- F24D19/00—Details
- F24D19/06—Casings, cover lids or ornamental panels, for radiators
- F24D19/061—Radiator shelves
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Central Heating Systems (AREA)
Abstract
The application relates to the technical field of heating element fixing, and provides a heating element fixing device which comprises a first frame and a second frame which are matched with each other, wherein the outlines of the first frame and the second frame are matched with those of the heating element, so that the heating element is fixed between the first frame and the second frame when the first frame and the second frame are locked; and the first frame and/or the second frame are/is provided with a heat insulation panel. The heating element fixing device adopts the structure of the frame to fix the heating element, has simple structure, reduces the number of parts, reduces the operation difficulty of workers and improves the production efficiency. In addition, the problem that no heat insulation measures lead to fuselage to scald in the prior art has been solved in the setting of heat insulation panel. Thus, the heating element fixing device has the double technical effects of heat insulation and support.
Description
Technical Field
The application relates to the technical field of heating element fixing, in particular to a heating element fixing device.
Background
A conventional heat storage type warmer, such as a ceramic warmer disclosed in the prior art, includes a housing 1 and a panel 2 sealingly engaged with the housing 1, as shown in fig. 1. The inside of the shell 1 is provided with a fixing frame 3, and a ceramic body 4 is embedded in the fixing frame 3. The inner side surface of the panel 2 is adhered with a reflective foil 8, the reflective foil 8 adopts an aluminum reflective foil film, and the position of the reflective foil film horizontally corresponds to the position of the ceramic body 4. When the heating wire is heated, heat energy is diffused from the ceramic body 4 to the outside of the panel 2, and the reflective foil 8 attached to the inner side of the panel 2 automatically transfers heat to other areas of the panel 2, so that the panel 2 can not generate a problem of local overheating.
However, this ceramic warmer has the following problems:
firstly, the number of parts of a fixing frame of a heating element (namely a ceramic body 4) is large, the die cost is high, the assembly process is large, and the production efficiency is low;
secondly, the brackets of the fixing frame of the heating element are mutually assembled and need to be laterally screwed, so that the operation difficulty of workers is increased, and the production efficiency is influenced;
secondly, the heating body has no heat insulation measure, and the reflective foil is easy to age after being used for a period of time, loses the reflective effect and causes the problem of scalding the machine body;
finally, the ceramic tile is heated and expanded to generate displacement, so that noise is easy to generate, and the user experience is influenced.
Disclosure of Invention
The present application aims to solve at least one of the technical problems existing in the prior art or related art.
One of the objects of the application is: the heating element fixing device solves the problems that in the prior art, the number of parts of a fixing frame is large, the operation difficulty of workers is large, the production efficiency is low and heat insulation measures are not available.
In order to achieve the object, the present application provides a heat generating body fixing device including first and second frames fitted to each other, the first and second frames each having a contour matching a contour of the heat generating body so that the heat generating body is fixed between the first and second frames when the first and second frames are locked; and the first frame and/or the second frame are/is provided with a heat insulation panel.
Preferably, a vent is formed in the heat insulation panel, the heat insulation panel is at least partially recessed in a direction away from the heating element, so that an air flow channel is formed between the heat insulation panel and the heating element, and the air flow channel is communicated with the vent.
Preferably, the vent includes an air inlet formed at the bottom of the heat insulation panel, and an air outlet formed at the top of the heat insulation panel.
Preferably, the air inlet and the air outlet each extend along a width direction of the heat insulation panel.
Preferably, a spring plate extending to the heating element is arranged on the heat insulation panel.
Preferably, the elastic sheet is located at the center of the heat insulation panel.
Preferably, the first frame and the second frame comprise mutually matched fixing frames/lugs, and the first frame and the second frame are locked through the fixing frames/lugs;
and the first frame and/or the second frame are/is positioned on the inner side of the fixed frame/lug to form a containing frame, so that a containing groove for installing the heating element is formed in the containing frame when the first frame and the second frame are locked.
Preferably, when the fixing frames are provided on the first frame and the second frame, a wiring hole is formed on the fixing frame.
Preferably, the corner of the accommodating frame is provided with a avoidance groove.
Preferably, the heat insulation panel is provided with reinforcing ribs.
The technical scheme of the application has the following advantages: the heating element fixing device adopts the structure of the frame to fix the heating element, has simple structure, reduces the number of parts, reduces the operation difficulty of workers and improves the production efficiency. In addition, the problem that no heat insulation measures lead to fuselage to scald in the prior art has been solved in the setting of heat insulation panel. Thus, the heating element fixing device has the double technical effects of heat insulation and support.
Drawings
In order to more clearly illustrate the embodiments of the application or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, it being obvious that the drawings in the following description are only some embodiments of the application, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic diagram of a prior art ceramic warmer;
FIG. 2 is a schematic diagram (one) of an exploded structure of a heat-generating body fixing device in which a heat-generating body is mounted in the embodiment;
FIG. 3 is a schematic diagram showing an exploded structure of a heat-generating body fixing device with a heat-generating body mounted therein in the embodiment (II)
FIG. 4 is a schematic view (one) of the structure of the first frame or the second frame in the embodiment;
FIG. 5 is a schematic view (II) of the structure of the first frame or the second frame in the embodiment;
in the figure: 1. a housing; 2. a panel; 3. a fixing frame; 4. a ceramic body; 8. a reflective foil;
01. a first frame; 02. a second frame; 03. fixing the frame; 04. a receiving frame; 05. an air inlet; 06. an air outlet; 07. a spring plate; 08. reinforcing ribs; 09. avoiding the groove; 10. a wiring hole; 11. a heating element; 12. a heat insulating panel.
Detailed Description
In order that the above-recited objects, features and advantages of the present application will be more clearly understood, a more particular description of the application will be rendered by reference to the appended drawings and appended detailed description. It should be noted that, without conflict, the embodiments of the present application and features in the embodiments may be combined with each other.
In the description of the present application, it should be noted that the terms "center", "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, merely to facilitate description of the present application and simplify the description, and do not indicate or imply that the apparatus or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present application. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present application, it should be noted that, unless explicitly specified and limited otherwise, the terms "connected," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium. The specific meaning of the above terms in the present application will be understood in specific cases by those of ordinary skill in the art.
Referring to fig. 2 and 3, the heat generating body fixing device of the present embodiment includes a first frame 01 and a second frame 02 which are matched with each other, wherein the contours of the first frame 01 and the second frame 02 are matched with the contours of the heat generating body 11, so that the heat generating body 11 is fixed between the first frame 01 and the second frame 02 when the first frame 01 and the second frame 02 are locked; the first frame 01 and/or the second frame 02 are provided with a heat insulation panel 12.
Wherein, "the contours of the first frame 01 and the second frame 02 are matched with the contours of the heating element 11" means that: when the whole heating body 11 is in a cube shape, the first frame 01 and the second frame 02 are also in a cube shape, so that the heating body 11 can be fixed between the first frame 01 and the second frame 02, and is similar to a plaque or a painting frame; when the heat generating element 11 has another shape, the same structure as the first frame 01 and the second frame 02 is preferable in that the heat generating element 11 can be fixed between the first frame 01 and the second frame 02. The form of the heating element 11 is not limited, and may be a heat storage brick such as a ceramic heat storage brick or a cast iron heat storage brick.
It is worth mentioning that, to ceramic heat storage brick, it is all easily breakable to fall the sediment in handling or expansion deformation produces sound, from this can all bring bad experience for the user from seeing and hearing. The heating element fixing device of the embodiment can effectively prevent the slag from falling through the cooperation of the double frames (the first frame and the second frame), and further avoid noise caused by falling of the slag. Further, "the first frame 01 and/or the second frame 02 are provided with the heat insulating panel 12" means that the heat generating body fixing device can be provided with a heat insulating effect as long as at least one of the first frame 01 and the second frame 02 is provided with the heat insulating panel 12. Of course, it is preferable that the heat insulation panels 12 are provided on the first frame 01 and the second frame 02 at the same time, and the heat generating body 11 is wrapped between the first frame 01, the second frame 02 and the heat insulation panels 12 at this time, so that the heat generating body fixing device obtains the best heat insulation effect.
The heating element fixing device of the embodiment adopts the structural form of the frame to fix the heating element 11, has simple structure, reduces the number of parts, reduces the operation difficulty of workers and improves the production efficiency. In addition, the arrangement of the heat insulation panel 12 solves the problem of the prior art that no heat insulation measures lead to scalding of the fuselage. Thus, the heat-generating body fixing device of the present embodiment has the dual technical effects of heat insulation and support.
Furthermore, by providing the heat insulation panel 12, it is also possible to secure the heat storage effect of the heat generating body 11.
In addition, the first frame 01 and the second frame 02 can be respectively obtained through integral molding, so that the die cost can be saved, the production efficiency can be further improved, and the noise can be reduced to a certain extent.
In this embodiment, a vent is formed in the heat insulating panel 12, the heat insulating panel 12 is at least partially recessed in a direction away from the heat generating body 11, so that an air flow passage is formed between the heat insulating panel 12 and the heat generating body 11, and the air flow passage communicates with the vent.
Among them, the heat insulating panel 12 preferably covers the exposed area of the heating element 11. Wherein the exposed portion refers to: other areas than the areas fixed in the first frame 01 and the second frame 02. Of course, the "covering" herein ignores the opening of the vent.
In addition, the structure, the number, and the distribution position of the air flow passages in the "air flow passages formed between the heat insulating panel 12 and the heat generating body 11" are not limited as long as the air flow gap between the heat insulating panel 12 and the heat generating body 11 is ensured.
It is found from fig. 2 to 5 that the heat insulation panel 12 is entirely concave, so that the circulation capacity of the air flow passage between the heat insulation panel 12 and the heat generator 11 is most enhanced after the heat generator 11 is mounted between the first frame 01 and the second frame 02, thereby securing the heat radiation capacity of the heat generator 11. In this case, the number of air flow passages between the heat generating body 11 and the heat insulating panel 12 is one, and the heat insulating panel 12 is simple in structure.
In addition, when the heat insulation panels 12 are disposed on the first frame 01 and the second frame 02, air flow passages may be formed between the heat insulation panels 12 and the heat generating body 11 of the first frame 01 and the second frame 02, and between the heat insulation panels 12 and the heat generating body 11 of the second frame 02, see fig. 2 and 3. In this case, both sides of the heating element 11 are formed with air flow passages to ensure that the heating element fixing device has an optimal heat radiation effect.
In this embodiment, the number, the opening position and the shape of the ventilation openings are not limited.
As seen in fig. 4, the vent includes an air inlet 05 formed at the bottom of the heat insulation panel 12, and an air outlet 06 formed at the top of the heat insulation panel 12, such that an air flow path is formed between the air inlet 05 and the air outlet 06. Since the air has a tendency to rise upwards after being heated, the air outlet 06 is disposed above the air inlet 05 to facilitate air circulation in the air flow channel to circulate to form air convection.
Referring to fig. 4, the air inlet 05 and the air outlet 06 extend along the width direction of the heat insulation panel 12, and the air inlet 05 and the air outlet 06 have large dimensions, so that the air circulation capability between the heating element 11 and the heat insulation panel 12 can be ensured, and the heat exchange effect on the heating element 11 can be further ensured.
Further, the air inlet 05 and the air outlet 06 may be obtained by punching. The structure of fig. 4 is preferably obtained by punching the middle of the insulating panel 12 such that the top and bottom of the punched portion are separated from the insulating panel 12 body, thereby forming the air inlet 05 and the air outlet 06 at the top and bottom of the punched portion, respectively. By adopting the mode to form the air inlet 05 and the air outlet 06, the process is simple, and the working effect can be improved. Of course, the manner of forming the air inlet 05 and the air outlet 06 is not limited.
As is seen from fig. 2 to 5, the heat insulation panel 12 is provided with a spring piece 07 extending toward the heating element 11. Because the materials of the heating element 11 and the heating element fixing device have different thermal expansion coefficients, the heating element 11 and the heating element fixing device can generate relative displacement during heating expansion, and noise can be generated. The elastic sheet 07 can effectively inhibit the generation of relative displacement, thereby reducing noise. Further, the elastic sheet 07 is in direct contact with the heat generating element 11, so that the heat generating element 11 can be effectively restrained from being deformed by thermal expansion. The number, shape and arrangement position of the elastic pieces 07 are not limited. In the present embodiment, the elastic sheet 07 is preferably provided in the middle of the heat insulating panel 12, and in this case, the deformation or the movement of the heating element 11 can be effectively suppressed by providing one elastic sheet 07 on the heat insulating panel 12. Also, the spring 07 is preferably, but not necessarily, obtained by punching. Of course, in order to further secure the restriction of the elastic sheet 07 to the heating element 11, the number of the elastic sheets 07 may be any number of pieces, and may be uniformly distributed on the heat insulation panel 12.
Referring to fig. 2 to 5, the first frame 01 and the second frame 02 include fixing rims 03 that are matched with each other, and the first frame 01 and the second frame 02 are locked by the fixing rims 03. For example, screw holes may be formed in the fixing frame 03, so that the first frame 01 and the second frame 02 may be fixed together by sequentially passing screws/bolts through the fixing frame 03 on the first frame 01 and the fixing frame 03 on the second frame 02. In this case, the first frame 01 and the second frame 02 are fixed by only screwing/bolting in the vertical direction, reducing the assembly direction.
Of course, instead of providing the fixing frame 03, lugs may be provided on the first frame 01 and the second frame 02, so that the first frame 01 and the second frame 02 may be fixed together by the lugs. The lugs can be distributed uniformly along the receiving frame 04, so that a reliable fixing of the first frame 01 and the second frame 02 is ensured.
Alternatively, neither the fixing frame 03 nor the lugs may be provided, as long as the first frame 01 and the second frame 02 can be fixed together.
Further, when the fixing frame 03/lug is provided, the first frame 01 and/or the second frame 02 are/is located inside the fixing frame 03/lug to form a containing groove for installing the heating element 11 in the containing frame 04 when the first frame 01 and the second frame 02 are locked. The first frame 01 and the second frame 02 in fig. 2 and fig. 3 each include a receiving frame 04, which does not limit the present application, for example, the receiving frame 04 may be provided only in the first frame 01, or the receiving frame 04 may be provided only in the second frame 02.
In addition, when the fixing frame 03 is provided on the first frame 01 and the second frame 02, the fixing frame 03 is formed with a wiring hole 10. That is, when the fixing frames 03 on the first and second frames 01 and 02 are fixed together, the fixing frames 03 are not closed everywhere, so that the wiring holes 10 are formed at positions where the connection is not closed, so that the heating body 11 between the first and second frames 01 and 02 can be connected to the outside.
Of course, if the fixing frame 03 is not provided but lugs are provided in the present embodiment, there is a gap between adjacent lugs that can be used for wiring.
Referring to fig. 2 to 5, a dodging groove 09 is provided at a corner of the receiving frame 04. The arrangement of the avoidance groove 09 can prevent the heat generating body 11 from colliding with the accommodating frame 04 when being installed, and can further protect the heat generating body 11 and the accommodating frame 04. Moreover, by arranging the avoidance groove 09, the circulation of air in the heat storage and fixation device can be enhanced, so that the air can enter the avoidance groove 09, and the heat dissipation capacity of the heating element fixation device is further enhanced.
In this embodiment, the insulating panel 12 is preferably, but not necessarily, a steel plate. And in order to strengthen the structural strength of the insulating panels 12, it is preferable, but not necessary, to provide a reinforcing rib 08 on each insulating panel 12. The extending direction of the reinforcing ribs 08 is preferably but not necessarily the same as the extending direction of the air inlet 05 and the air outlet 06, and the number of reinforcing ribs 08 per heat insulation panel 12 is preferably but not necessarily plural.
The fixing frame 03 and the receiving frame 04 of the first frame 01/second frame 02 mentioned above may be integrally formed, and of course, the first frame 01/second frame 02 and the heat insulation panel 12 may be integrally formed.
In the above heat generating body fixing device, when the heat generating body 11 is a heat storage brick, the number of heat storage bricks fixed between the first frame 01 and the second frame 02 is not limited, and for example, the heat generating body fixing device can be used for fixing one heat storage brick or a plurality of heat storage bricks.
The above embodiments are only for illustrating the present application, and are not limiting of the present application. While the application has been described in detail with reference to the embodiments, those skilled in the art will appreciate that various combinations, modifications, and substitutions can be made thereto without departing from the spirit and scope of the application as defined in the appended claims.
Claims (7)
1. A heat generating body fixing device, characterized by comprising a first frame and a second frame which are matched with each other, wherein the outlines of the first frame and the second frame are matched with the outline of the heat generating body, so that the heat generating body is fixed between the first frame and the second frame when the first frame and the second frame are locked; the first frame and/or the second frame are/is provided with a heat insulation panel; the heat insulation panel is provided with a vent, and the heat insulation panel is at least partially recessed towards a direction far away from the heating body, so that an air flow channel is formed between the heat insulation panel and the heating body, and the air flow channel is communicated with the vent; the ventilation opening comprises an air inlet formed at the bottom of the heat insulation panel and an air outlet formed at the top of the heat insulation panel; the first frame and the second frame comprise mutually matched fixing frames or lugs, and the first frame and the second frame are locked through the fixing frames or lugs.
2. A heat-generating body fixing device as described in claim 1, wherein the air inlet and the air outlet each extend in a width direction of the heat-insulating panel.
3. A heat-generating body fixing device as set forth in claim 1, wherein a spring plate extending toward the heat-generating body is provided on the heat-insulating panel.
4. A heat-generating body fixing device as described in claim 3, wherein said elastic piece is located at a center position of said heat-insulating panel.
5. A heat-generating body fixing device as described in claim 1, wherein when the fixing frames are provided on the first frame and the second frame, wiring holes are formed on the fixing frames.
6. A heat-generating body fixing device as described in claim 1, wherein on the first frame and/or the second frame, a receiving frame is provided inside the fixing frame or the lug, and a avoiding groove is provided at a corner of the receiving frame.
7. A heat-generating body fixing device as described in any one of claims 1 to 4, wherein a reinforcing rib is provided on the heat-insulating panel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810133937.4A CN108131718B (en) | 2018-02-09 | 2018-02-09 | Heating element fixing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810133937.4A CN108131718B (en) | 2018-02-09 | 2018-02-09 | Heating element fixing device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108131718A CN108131718A (en) | 2018-06-08 |
| CN108131718B true CN108131718B (en) | 2023-10-27 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810133937.4A Active CN108131718B (en) | 2018-02-09 | 2018-02-09 | Heating element fixing device |
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| Country | Link |
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| CN (1) | CN108131718B (en) |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103596305A (en) * | 2012-08-13 | 2014-02-19 | 金成根 | Electric heating pipe for heating having corrosion resistance and electric insulation and its producing method |
| JP2014194152A (en) * | 2013-02-28 | 2014-10-09 | Sekisui Chem Co Ltd | Heat insulation panel, heat insulation method, frame body for heat insulation panel, and heat insulation panel component member |
| CN104456691A (en) * | 2013-09-12 | 2015-03-25 | 珠海格力电器股份有限公司 | Convection type electric heater |
| CN204442718U (en) * | 2014-12-22 | 2015-07-01 | 曼瑞德集团有限公司 | A kind of far infrared footwarmer |
| CN205066153U (en) * | 2015-10-22 | 2016-03-02 | 广东美的环境电器制造有限公司 | Electric fan heater and heat -generating body wind channel structure thereof |
| CN207893852U (en) * | 2018-02-09 | 2018-09-21 | 广东美的环境电器制造有限公司 | A kind of heating element fixing device |
-
2018
- 2018-02-09 CN CN201810133937.4A patent/CN108131718B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103596305A (en) * | 2012-08-13 | 2014-02-19 | 金成根 | Electric heating pipe for heating having corrosion resistance and electric insulation and its producing method |
| JP2014194152A (en) * | 2013-02-28 | 2014-10-09 | Sekisui Chem Co Ltd | Heat insulation panel, heat insulation method, frame body for heat insulation panel, and heat insulation panel component member |
| CN104456691A (en) * | 2013-09-12 | 2015-03-25 | 珠海格力电器股份有限公司 | Convection type electric heater |
| CN204442718U (en) * | 2014-12-22 | 2015-07-01 | 曼瑞德集团有限公司 | A kind of far infrared footwarmer |
| CN205066153U (en) * | 2015-10-22 | 2016-03-02 | 广东美的环境电器制造有限公司 | Electric fan heater and heat -generating body wind channel structure thereof |
| CN207893852U (en) * | 2018-02-09 | 2018-09-21 | 广东美的环境电器制造有限公司 | A kind of heating element fixing device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108131718A (en) | 2018-06-08 |
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