CN108397814A - Rotatable heating unit assembly and heater - Google Patents
Rotatable heating unit assembly and heater Download PDFInfo
- Publication number
- CN108397814A CN108397814A CN201810203837.4A CN201810203837A CN108397814A CN 108397814 A CN108397814 A CN 108397814A CN 201810203837 A CN201810203837 A CN 201810203837A CN 108397814 A CN108397814 A CN 108397814A
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- China
- Prior art keywords
- heat
- unit assembly
- heating unit
- generating pipe
- end cover
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Classifications
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- 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
- F24D13/00—Electric heating systems
- F24D13/02—Electric heating systems solely using resistance heating, e.g. underfloor heating
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- 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 invention discloses a kind of rotatable heating unit assemblies, the heating unit assembly includes heat-generating pipe, heating wire and fin, the heating wire is located in heat-generating pipe and for being connect with external power supply, the fin is connected to outside the heat-generating pipe, the heating unit assembly further includes actuator, and the actuator is for driving the heat-generating pipe, the heating wire and the fin to rotate synchronously.The invention also discloses a kind of heaters of application rotatable heating unit assembly.Heater of the present invention has the advantages that heating speed is fast.
Description
Technical field
It can be revolved the present invention relates to heating system technical field more particularly to a kind of rotatable heating unit assembly and using this
The heater of the heating unit assembly turned.
Background technology
With the increasingly raising of people's living standard, heater becomes the heating system of most families indispensability.Tradition is to weighing apparatus
The both ends of heating unit assembly in formula warmer shell are fixed, and cold air is flowed into from air inlet hole in shell, and through heating unit assembly
Rise after heating, and outside exhaust vent outflow shell, is a kind of heating mode of typical natural convection heating air, but take
Warmer is slow using the heating speed of such heating mode, is unable to instant-heating.
Invention content
The main purpose of the present invention is to provide a kind of rotatable heating unit assembly and apply the rotatable heater
The heater of component, it is intended to solve the problems, such as that existing heater heating speed is slow.
To achieve the above object, rotatable heating unit assembly provided by the invention includes heat-generating pipe, heating wire and wing
Piece, the heating wire are located in heat-generating pipe and for being connect with external power supply, and the fin is connected to outside the heat-generating pipe, described
Heating unit assembly further includes actuator, and the actuator is for driving the heat-generating pipe, the heating wire and the fin same
Step rotation.
Preferably, the heating unit assembly further includes first end cover and second end cover, and the first end cover is fixed on described
The first end of heat-generating pipe, the second end cover are fixed on the second end of the heat-generating pipe；The actuator is driving motor, described
First end cover described in the output axis connection of driving motor, the heating wire connect the second end cover.
Preferably, the first end cover includes the first head and the first extension for being connect with first head, described
First head is closely attached on the end of the first end of the heat-generating pipe, first extension be sheathed in the heat-generating pipe and with institute
The first end for stating heat-generating pipe is fixed, and the through-hole being inserted into for the output shaft of the driving motor, institute are offered in the first end cover
The output shaft and the through-hole for stating driving motor are interference fitted.
Preferably, the second end cover includes the second head and the second extension for being connect with second head, described
Second head is closely attached on the end of the second end of the heat-generating pipe, second extension be sheathed in the heat-generating pipe and with institute
The second end for stating heat-generating pipe is fixed, and the heating wire is embedded at the second end cover, and institute is stretched out in the free end of the heating wire
Second end cover is stated for being connect with the external power supply.
Preferably, the heating unit assembly further includes power supply transfer part, and it is recessed that the power supply transfer part is equipped with annular electric supply
The free end of slot, the heating wire is equipped with electrode contact, and the electrode contact abuts and is slidedly arranged on the annular electric supply groove.
Preferably, the quantity of the electrode contact is three, and the quantity of the annular electric supply groove is two, two of which
The electrode contact and two annular electric supply grooves are corresponded and are arranged；It is recessed to be located at annular electric supply on the power supply transfer part
The center of slot is additionally provided with round power supply groove, remaining electrode contact abuts and be slidedly arranged on it is described it is round power it is recessed
Slot.
Preferably, the quantity of the fin is multiple, and multiple fins surround the axle center arranged for interval of the heat-generating pipe.
Preferably, the quantity of the heating wire is a plurality of, and wire tray of generating heat described in each item is set in the heat-generating pipe.
The present invention also provides a kind of heaters, including shell and rotatable heater group as described in any one of the above embodiments
Part, the shell is interior to form fever chamber, and the heating unit assembly is placed in the fever chamber, air inlet hole is offered on the shell
And exhaust vent, the air inlet hole is close to the heating unit assembly.
Preferably, the length of the heating unit assembly is horizontally extending or vertically extends.
In the inventive solutions, when in use, extraneous cold air is entered by air inlet hole in shell heater,
It is powered to heating wire, heating wire generates heat after being powered, and transfers heat to fever light and fin, thus by the cold air in shell
Heating.During heating cold air, start actuator, to drive heat-generating pipe, heating wire and fin to rotate synchronously, to shell
Internal air is stirred, and the flowing of shell interior air-flow is accelerated, and then improves heating speed, makes the heater in short-term
The interior cold air by its shell heats, and the cold air after heating becomes hot-air and flows out shell from exhaust vent, realizes and opens
I.e. hot heating process.The heater of the present invention also has the advantages that simple in structure and is easy to make.
Description of the drawings
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technology description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
Some embodiments of invention for those of ordinary skill in the art without creative efforts, can be with
The structure shown according to these attached drawings obtains other attached drawings.
Fig. 1 is the decomposition diagram of heater of the embodiment of the present invention；
Fig. 2 is the assembling schematic diagram that heater of the embodiment of the present invention omits front housing；
Fig. 3 is the assembling schematic diagram that heater of the embodiment of the present invention omits front housing and rear shell；
Fig. 4 is the enlarged diagram of the a-quadrant in Fig. 3；
Fig. 5 is the floor map of power supply transfer part in heater of the embodiment of the present invention；
Fig. 6 is the assembling schematic diagram of another embodiment of the present invention heater.
Drawing reference numeral explanation：
| Label | Title | Label | Title |
| 1 | Shell | 11 | Exhaust vent |
| 12 | Air inlet hole | 13 | Front housing |
| 14 | Rear shell | 2 | Heat-generating pipe |
| 3 | Heating wire | 31 | Electrode contact |
| 4 | Fin | 5 | Driving motor |
| 51 | Output shaft | 6 | First end cover |
| 61 | First head | 62 | First extension |
| 7 | Second end cover | 71 | Second head |
| 72 | Second extension | 8 | Power supply transfer part |
| 81 | Annular electric supply groove | 82 | Circle power supply groove |
| 9 | Mounting base | 10 | Power supply fixed seat |
The object of the invention is realized, the embodiments will be further described with reference to the accompanying drawings for functional characteristics and advantage.
Specific implementation mode
Below in conjunction with the attached drawing in the present embodiment, the technical solution in the present embodiment is clearly and completely described,
Obviously, described embodiment is only a part of the embodiment of the present invention, instead of all the embodiments.Based in the present invention
Embodiment, the every other embodiment that those of ordinary skill in the art are obtained without creative efforts,
It shall fall within the protection scope of the present invention.
It is to be appreciated that the directional instruction (such as up, down, left, right, before and after ...) of institute is only used for solving in the present embodiment
Relative position relation, motion conditions etc. between each component under a certain particular pose (as shown in the picture) are released, if this is specific
When posture changes, then directionality instruction also correspondingly changes correspondingly.
In addition, the description for being such as related to " first ", " second " in the present invention is used for description purposes only, and should not be understood as
It indicates or implies its relative importance or implicitly indicate the quantity of indicated technical characteristic.Define as a result, " first ",
The feature of " second " can explicitly or implicitly include at least one of the features.In the description of the present invention, " multiple " contain
Justice is at least two, such as two, three etc., unless otherwise specifically defined.
In the present invention unless specifically defined or limited otherwise, term " connection ", " fixation " etc. shall be understood in a broad sense,
For example, " fixation " may be a fixed connection, it may be a detachable connection, or integral；It can be mechanical connection, can also be
Electrical connection；It can be directly connected, can also can be indirectly connected through an intermediary the connection inside two elements or two
The interaction relationship of a element, unless otherwise restricted clearly.It for the ordinary skill in the art, can basis
Concrete condition understands the concrete meaning of above-mentioned term in the present invention.
In addition, the technical solution between each embodiment of the present invention can be combined with each other, but must be general with this field
Logical technical staff can be implemented as basis, will be understood that when the combination of technical solution appearance is conflicting or cannot achieve this
The combination of technical solution is not present, also not the present invention claims protection domain within.
It should be appreciated that the specific embodiments described herein are merely illustrative of the present invention, it is not intended to limit the present invention.
As shown in Figure 1 to Figure 3, rotatable heating unit assembly provided by the invention can be applied to heater or other needs
In the equipment of heating service, the present embodiment is illustrated by taking heater as an example.The heater of the present embodiment includes shell 1 and fever
Body component, shell 1 is interior to form fever chamber, and heating unit assembly is placed in fever chamber, exhaust vent 11 and air inlet hole are offered on shell 1
12, air inlet hole 12 is close to heating unit assembly.Heating unit assembly includes heat-generating pipe 2, heating wire 3 and fin 4, and heating wire 3 is located at
In heat-generating pipe 2 and for being connect with external power supply, fin 4 is connected to outside heat-generating pipe 2, and heating unit assembly further includes being set to shell
Actuator on 1, actuator is for driving heat-generating pipe 2, heating wire 3 and fin 4 to rotate synchronously.
When in use, extraneous cold air is entered by air inlet hole 12 in shell 1 heater of the present embodiment, to heating wire
3 are powered, and heating wire 3 generates heat after being powered, and transfers heat to heat-generating pipe 2 and fin 4, to add the cold air in shell 1
Heat.During heating cold air, start actuator, it is right to drive heat-generating pipe 2, heating wire 3 and fin 4 to rotate synchronously
Air in shell 1 is stirred, and the flowing of 1 interior air-flow of shell is accelerated, and then improves heating speed, and the heater is made to exist
The cold air in its shell 1 is heated in short time, the cold air after heating becomes hot-air and flows out shell 1 from exhaust vent 11,
Realize the heating process of instant-heating.The heater of the present embodiment also has the advantages that simple in structure and is easy to make.
It should be understood that it is certain do not need heater instant-heating in the case of, be not required to start actuator, heater group
Heat-generating pipe 2, heating wire 3 and the fin 4 of part will not then rotate, and the heater is made to realize the heating of natural convection heating air
Process meets the different demands of user.
As shown in Figure 1 to Figure 3, in the present embodiment, heating unit assembly further includes first end cover 6 and second end cover 7, first end
Lid 6 is fixed on the first end of heat-generating pipe 2, and second end cover 7 is fixed on the second end of heat-generating pipe 2；Actuator is driving motor 5, is driven
The output shaft 51 of dynamic motor 5 connects first end cover 6, and heating wire 3 connects second end cover 7.Start driving motor 5, driving motor 5 is logical
Crossing output shaft 51 drives first end cover 6 to rotate, and first end cover 6 drives heat-generating pipe 2 and second end cover 7 to rotate, and then drives fin 4
And heating wire 3 rotates, that is, realizes that the synchronous rotation of heat-generating pipe 2, heating wire 3 and fin 4, simple and ingenious structure are easy to make.
Specifically, first end cover 6 includes the first head 61 and the first extension 62, the first head 61 and the first extension 62
Connection, the first head 61 are closely attached on the end of the first end of heat-generating pipe 2, the first extension 62 be sheathed in heat-generating pipe 2 and with hair
The first end of heat pipe 2 is fixed.The through-hole of the insertion of output shaft 51 for driving motor 5, driving motor 5 are offered in first end cover 6
Output shaft 51 and through-hole be interference fitted so that driving motor 5 is fastenedly connected with the realization of first end cover 6, thus in driving motor 5
First end cover 6 is driven to rotate when startup, so that heat-generating pipe 2, heating wire 3 and fin 4 rotate synchronously.
It should be noted that in other embodiments, the output shaft 51 of driving motor 5 can use key with first end cover 6
Cooperation or other for being fastenedly connected mode, the present invention to the connection type of the output shaft 51 of driving motor 5 and first end cover 6 not
It is restricted.
As shown in Figures 1 to 4, in the present embodiment, second end cover 7 include the second head 71 and the second extension 72, second
Head 71 is connect with the second extension 72, and the second head 71 is closely attached on the end of the second end of heat-generating pipe 2, the second 72 sets of extension
It is fixed in heat-generating pipe 2 and with the second end of heat-generating pipe 2, heating wire 3 is embedded at second end cover 7, and the free end of heating wire 3
Second end cover 7 is stretched out for being connect with external power supply.When heat-generating pipe 2 rotates, second end cover 7 is driven to rotate, because of heating wire 3
It is embedded at second end cover 7, heating wire 3 can be driven to rotate while second end cover 7 rotates, the free end of heating wire 3 stretches out the
Two end caps 7, and the free end of heating wire 3 is connect with external power supply, it is convenient to be powered to heating wire 3.
As shown in Fig. 1, Fig. 3 and Fig. 5, in the present embodiment, heating unit assembly further includes power supply transfer part 8, power supply transfer part 8
It is equipped with annular electric supply groove 81, the free end of heating wire 3 is equipped with electrode contact 31, and electrode contact 31 abuts and is slidedly arranged on annular
Power supply groove 81.During heating wire 3 rotates, electrode contact 31 also with heating wire 3 rotation in annular electric supply groove
Electric brush type power supply is realized in sliding in 81.It should be understood that the shape of the annular electric supply groove 81 of the present embodiment and electrode contact 31
Sliding trace it is consistent, electrode contact 31 is remained to be contacted with the annular electric supply groove 81 in power supply transfer part 8, can generated heat
Pipe 2, heating wire 3 and fin 4 realize the power supply process to heating wire 3 during rotating synchronously.
In the present embodiment, the quantity of electrode contact 31 is three, and the quantity of annular electric supply groove 81 is two, two of which
Electrode contact 31 and two annular electric supply grooves 81 are corresponded and are arranged；Positioned at annular electric supply groove 81 on power supply transfer part 8
Center is equipped with also round power supply groove 82, remaining electrode contact 31 abuts and is slidedly arranged on round power supply groove 82.Three
The on and off of different conditions may be implemented in a electrode contact 31, so that heater has different operating powers.
Specifically, the shape of power supply transfer part 8 is rounded, and the center of power supply transfer part 8 is equipped with round power supply groove
82, two annular electric supply grooves 81 are spaced setting to marginal position successively along the center of power supply transfer part 8.Two of which electricity
Pole contact 31 and two annular electric supply grooves 81 are corresponded and are arranged, during heating wire 3 rotates, this two electrode contacts
31 slide in two corresponding annular electric supply grooves 81 respectively, and the rotary motion trace of remaining electrode contact 31 is constant,
It can be rotated in original place in circle power supply groove 82, meet the matching requirements of the parts of different structure.It should be noted that electric
Pole contact 31 can be in different shape, such as hexahedron, thin scopiform or spherical shape etc., the shape of the electrode contact 31 of the present embodiment
Shape preferably uses spherical shape.
In the present embodiment, the quantity of fin 4 is multiple, axle center uniform intervals arrangement of the multiple fins 4 around heat-generating pipe 2.
When driving motor 5 starts, multiple fins 4 can rotate simultaneously, further speed up the flowing of air in shell 1, improve and add
Thermal velocity.The present embodiment heater is further raising acceleration, and the quantity that heating wire 3 is provided in heat-generating pipe 2 is
A plurality of, the length of each heating wire 3 is longer, can disk be set to heat-generating pipe 2 in.
The shell 1 of the present embodiment includes front housing 13 and rear shell 14, and exhaust vent 11 is located at the position close to top on front housing 13,
Air inlet hole 12 is located at the position close to bottom in rear shell 14.Cold air enters from air inlet hole 12 in shell 1, by heating unit assembly
Stir and risen to after heating exhaust vent 11, and flowed out outside shell 1 from exhaust vent 11, the cold air outside shell 1 then again from into
Air holes 12 enters in shell 1, is flowed out outside shell 1 from exhaust vent 11 after being heated, and realizes the hydronic process of heater.
In the present embodiment heater, mounting base 9 is equipped on the side inner wall of shell 1, driving motor 5 is mounted on mounting base
On 9, the fixation of driving motor 5 is realized.Power supply fixed seat 10 is equipped on the other side inner wall of shell 1, power supply transfer part 8 is installed
In power supply fixed seat 10, the fixation of power supply transfer part 8 is realized.
The length of heating unit assembly in heater of the present invention is horizontally extending or vertically extends.This reality
It applies in example, the length of heating unit assembly is horizontally extending, i.e., heating unit assembly is horizontally disposed.In another embodiment, such as
Shown in Fig. 6, the length of heating unit assembly can vertically extend, i.e., heating unit assembly can be vertically arranged.Heating unit assembly is perpendicular
When straight setting, mounting base 9 and driving motor 5 are located at the lower section of heating unit assembly, power supply transfer part 8 and power supply fixed seat 10
In the top of heating unit assembly, flexibly to design the set-up mode of heating unit assembly according to actual conditions.
It should be noted that the length extending direction of heating unit assembly can be vertical direction in heater of the present invention,
Can there are a degree of inclination, i.e. the length extending direction of heating unit assembly that can have one with vertical direction with opposed vertical direction
Determine the angle of degree, it is preferable that the length extending direction of heating unit assembly and the angle of vertical direction can be not more than 30 °.
It these are only the preferred embodiment of the present invention, be not intended to limit the scope of the invention, it is every to utilize this hair
Equivalent structure or equivalent flow shift made by bright specification and accompanying drawing content is applied directly or indirectly in other relevant skills
Art field, is included within the scope of the present invention.
Claims (10)
1. a kind of rotatable heating unit assembly, which is characterized in that the heating unit assembly includes heat-generating pipe, heating wire and wing
Piece, the heating wire are located in heat-generating pipe and for being connect with external power supply, and the fin is connected to outside the heat-generating pipe, described
Heating unit assembly further includes actuator, and the actuator is for driving the heat-generating pipe, the heating wire and the fin same
Step rotation.
2. rotatable heating unit assembly according to claim 1, which is characterized in that the heating unit assembly further includes
One end cap and second end cover, the first end cover are fixed on the first end of the heat-generating pipe, and the second end cover is fixed on described
The second end of heat-generating pipe；The actuator is driving motor, first end cover described in the output axis connection of the driving motor, described
Heating wire connects the second end cover.
3. rotatable heating unit assembly according to claim 2, which is characterized in that the first end cover includes first
Portion and the first extension being connect with first head, first head are closely attached on the end of the first end of the heat-generating pipe
Portion, first extension is sheathed in the heat-generating pipe and is fixed with the first end of the heat-generating pipe, in the first end cover
The through-hole being inserted into for the output shaft of the driving motor is offered, the output shaft of the driving motor is matched with the through-hole interference
It closes.
4. rotatable heating unit assembly according to claim 2, which is characterized in that the second end cover includes second
Portion and the second extension being connect with second head, second head are closely attached on the end of the second end of the heat-generating pipe
Portion, second extension are sheathed in the heat-generating pipe and are fixed with the second end of the heat-generating pipe, and the heating wire is embedded
In the second end cover, and the second end cover is stretched out for being connect with the external power supply in the free end of the heating wire.
5. rotatable heating unit assembly according to claim 1, which is characterized in that the heating unit assembly further includes electricity
Source adapter, the power supply transfer part are equipped with annular electric supply groove, and the free end of the heating wire is equipped with electrode contact, described
Electrode contact abuts and is slidedly arranged on the annular electric supply groove.
6. rotatable heating unit assembly according to claim 5, which is characterized in that the quantity of the electrode contact is three
A, the quantity of the annular electric supply groove is two, electrode contact described in two of which and two annular electric supply grooves one
One corresponds to arrangement；It is additionally provided with round power supply groove positioned at the center of annular electric supply groove on the power supply transfer part, remaining
One electrode contact abuts and is slidedly arranged on the round power supply groove.
7. the rotatable heating unit assembly according to any one of claim 1-6, which is characterized in that the number of the fin
Amount is multiple, and multiple fins surround the axle center arranged for interval of the heat-generating pipe.
8. the rotatable heating unit assembly according to any one of claim 1-6, which is characterized in that the heating wire
Quantity is a plurality of, and wire tray of generating heat described in each item is set in the heat-generating pipe.
9. a kind of heater, which is characterized in that the rotatable fever including shell and as described in any one of claim 1-8
Body component forms fever chamber in the shell, and the heating unit assembly is placed in the fever chamber, offered on the shell into
Air holes and exhaust vent, the air inlet hole is close to the heating unit assembly.
10. heater according to claim 9, which is characterized in that the length of the heating unit assembly is prolonged in the horizontal direction
It stretches or vertically extends.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810203837.4A CN108397814B (en) | 2018-03-12 | 2018-03-12 | Rotatable heating element assembly and warmer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810203837.4A CN108397814B (en) | 2018-03-12 | 2018-03-12 | Rotatable heating element assembly and warmer |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108397814A true CN108397814A (en) | 2018-08-14 |
| CN108397814B CN108397814B (en) | 2020-08-04 |
Family
ID=63092469
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810203837.4A Active CN108397814B (en) | 2018-03-12 | 2018-03-12 | Rotatable heating element assembly and warmer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108397814B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112369810A (en) * | 2020-11-10 | 2021-02-19 | 湖南瑞奇电器有限公司 | Blowing and heating device for electric heating table |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2464299A (en) * | 2008-10-09 | 2010-04-14 | Ibrahim Ghulam Murad Ali | Increased efficiency radiator |
| CN201992739U (en) * | 2011-04-19 | 2011-09-28 | 邓海英 | Indoor rapid heat radiation fin |
| CN104344450A (en) * | 2013-07-29 | 2015-02-11 | 广东美的环境电器制造有限公司 | Oil heater |
| CN204634068U (en) * | 2015-04-22 | 2015-09-09 | 苏州丰倍生物科技有限公司 | A kind of New Rotary heating tube |
| CN105737240A (en) * | 2014-12-12 | 2016-07-06 | 西安尼龙制品厂 | Rapid electric heater capable of dissipating heat uniformly |
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2018
- 2018-03-12 CN CN201810203837.4A patent/CN108397814B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2464299A (en) * | 2008-10-09 | 2010-04-14 | Ibrahim Ghulam Murad Ali | Increased efficiency radiator |
| CN201992739U (en) * | 2011-04-19 | 2011-09-28 | 邓海英 | Indoor rapid heat radiation fin |
| CN104344450A (en) * | 2013-07-29 | 2015-02-11 | 广东美的环境电器制造有限公司 | Oil heater |
| CN105737240A (en) * | 2014-12-12 | 2016-07-06 | 西安尼龙制品厂 | Rapid electric heater capable of dissipating heat uniformly |
| CN204634068U (en) * | 2015-04-22 | 2015-09-09 | 苏州丰倍生物科技有限公司 | A kind of New Rotary heating tube |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112369810A (en) * | 2020-11-10 | 2021-02-19 | 湖南瑞奇电器有限公司 | Blowing and heating device for electric heating table |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108397814B (en) | 2020-08-04 |
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