CN217957342U - Heating plate and blowing device - Google Patents
Heating plate and blowing device Download PDFInfo
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- CN217957342U CN217957342U CN202221695871.6U CN202221695871U CN217957342U CN 217957342 U CN217957342 U CN 217957342U CN 202221695871 U CN202221695871 U CN 202221695871U CN 217957342 U CN217957342 U CN 217957342U
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Abstract
The application relates to a heating plate and a blowing device, wherein the heating plate comprises a seat body, a heating wire and a temperature-resistant piece, the heating wire is spirally arranged, and two ends of the heating wire are respectively connected with the seat body; the temperature-resistant part is connected to the base body and is arranged to penetrate through the heating wire, and the highest temperature T1 which can be borne by the temperature-resistant part is larger than the highest temperature T2 which can be borne by the heating wire. The heating plate is connected with the spiral heating wire on the seat body, so that the heating efficiency can be improved when hot air needs to be blown, the hot air blowing efficiency can be improved, the wind resistance to cold air can be reduced when cold air needs to be blown, and the loss of the amount of the cold air can be reduced. In addition, the temperature resistant part can prevent the heater from dropping when the heater fails and breaks because of the overhigh temperature, and the safety of the heating plate is favorably improved.
Description
Technical Field
The application relates to the field of household appliances, in particular to a heating plate and a blowing device.
Background
The blowing devices such as electric fans, hand-held hair dryers and the like are common household appliances, and the working principle of the blowing devices is that the electric motors are used for driving fan blades to rotate so as to drive surrounding air to circulate in an accelerated manner, so that the blowing devices have the effects of promoting air circulation, quickly airing, cooling and relieving summer heat and the like. In the existing electric fan with the heating resistance wire additionally arranged in the blowing device, when the weather is cold, the heating resistance wire works, and the motor drives the fan to blow out warm air; when the weather is hot, the heating wire stops working, and the motor drives the fan to blow out cool wind.
The heating resistor structure of the existing electric fan with dual purposes of cooling and heating has low heating efficiency and large occupied space. When hot air needs to be blown, the working efficiency of the heating resistor structure is low, and the temperature of the blown hot air cannot meet the requirements of human bodies; when hot air needs to be blown, the projection area of the heating resistor structure on the front face of the fan is large due to the large volume of the heating resistor structure, and cold air blown out of the fan is greatly resisted, so that the air volume of the cold air felt by a human body cannot meet the requirement. In addition, in the conventional electric fan for both cooling and heating, when the heating resistor is broken due to overheating, the heating resistor is liable to fall off from the fan, and this causes damage to nearby objects and people.
SUMMERY OF THE UTILITY MODEL
Based on this, the utility model discloses it is necessary to provide one kind can enough improve the efficiency of generating heat, can reduce the completely reliable dish and blast apparatus that generate heat of windage again.
A heating plate comprises a seat body, a heating wire and a temperature-resistant piece, wherein the heating wire is spirally arranged, and two ends of the heating wire are respectively connected with the seat body; the temperature-resistant part is connected to the seat body and is arranged to penetrate through the heating wire, and the highest temperature T1 which can be borne by the temperature-resistant part is larger than the highest temperature T2 which can be borne by the heating wire.
The spiral heating wire can increase the contact area of the heating wire and air and reduce the resistance to the air flowing through the heating wire to the maximum extent. Therefore, the heating plate is connected with the spiral heating wire on the seat body, so that the heating efficiency can be improved when hot air needs to be blown, the hot air blowing efficiency can be improved, the wind resistance to cold air can be reduced when cold air needs to be blown, and the loss of the cold air volume can be reduced. In addition, the temperature resistant piece can prevent that the heater from dropping when the heater loses efficacy and breaks because of the high temperature, is favorable to promoting the security of this heating dish.
In one embodiment, the seat body comprises a connecting piece, and a first bracket and a second bracket which are concentrically arranged, and two ends of the connecting piece are respectively connected with the first bracket and the second bracket.
In one embodiment, a first mica sheet is connected to one side of the first bracket facing the second bracket, and a first through hole is formed in the first mica sheet; one side, facing the first support, of the second support is connected with a second mica sheet, and a second through hole is formed in the second mica sheet; and the heating wire is arranged in a spiral spring shape, and two ends of the heating wire respectively penetrate through the first through hole and the second through hole and are connected with the first mica sheet and the second mica sheet.
In one embodiment, the heating plate further comprises a plurality of fixing members, and the fixing members are used for fixing the first mica sheet on the first bracket and fixing the second mica sheet on the second bracket.
In one embodiment, the temperature-resistant member is arranged in a filament shape, and two ends of the temperature-resistant member respectively penetrate through the first through hole and the second through hole and are connected with the first mica sheet and the second mica sheet.
In one embodiment, the heating plate comprises a plurality of heating wires arranged end to end.
In one embodiment, the heating plate further comprises a third mica sheet, one end of the third mica sheet is connected to the connecting piece, and the other end of the third mica sheet is used for abutting against the heating wire.
In one embodiment, a recessed portion is arranged at one end of the third mica sheet, which is away from the connecting member, and a part of the heating wire wound around the connecting member abuts against the recessed portion.
In one embodiment, the heating plate further comprises a fuse assembly, and the fuse assembly is connected with the heating wires in an end-to-end configuration in series.
A blowing device comprises a front shell, the heating disc, fan blades and a rear shell which are sequentially arranged.
The spiral heating wire is connected to the base body, so that the heating efficiency can be improved when hot air needs to be blown, the efficiency of blowing the hot air is improved, the wind resistance to the cold air can be reduced when the cold air needs to be blown, and the air quantity when the cold air is blown to a human body can be improved. In addition, the temperature resistant piece can prevent that the heater from dropping when the heater loses efficacy and breaks because of the high temperature, is favorable to promoting this blast apparatus's security.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the invention and together with the description, serve to explain the principles of the invention.
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without inventive labor.
Fig. 1 is a schematic overall structure diagram of an air blowing device according to an embodiment of the present disclosure;
fig. 2 is a schematic overall structural diagram of a heating plate according to an embodiment of the present application;
fig. 3 is a schematic overall structure diagram of a seat provided in the embodiment of the present application;
fig. 4 is a schematic overall structure diagram of a first mica sheet (a second mica sheet) provided in the present application;
fig. 5 is a schematic overall structure diagram of a third mica sheet provided in the embodiment of the present application;
fig. 6 is a schematic overall structure diagram of a fixing member according to an embodiment of the present application;
fig. 7 is a circuit diagram of an air blowing device according to an embodiment of the present application.
Description of the reference numerals
1. A blowing device; 10. a heating plate; 20. a front housing; 30. a fan blade; 40. a rear housing; 50. a switch; 60. a power source; 70. a motor; 100. a base body; 110. a first bracket; 120. a second bracket; 130. a connecting member; 140. a placement area; 200. a heater; 300. temperature-resistant parts; 410. a first mica sheet; 411. a first through hole; 420. a second mica sheet; 422. a second through hole; 430. a third mica sheet; 433. a recessed portion; 500. a fixing member; 510. a groove; 600. a fuse assembly; 610. a temperature fuse; 620. a temperature circuit breaker.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are some embodiments of the present application, but not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
As shown in fig. 2, the present application provides a hot plate 10, which includes a base 100, a spiral heating wire 200, and a temperature-resistant member 300. Both ends of the heating wire 200 are respectively connected with the seat body 100. The temperature-resistant member 300 is connected to the base 100 and disposed to penetrate the heater 200. The highest temperature T1 that the temperature-resistant member 300 can bear is greater than the highest temperature T2 that the heating wire 200 can bear.
Since the spiral heat generating wire 200 can not only increase the contact area of the heat generating wire 200 with air, but also minimize the resistance to the air flowing through the heat generating wire 200. Therefore, the heating plate 10 can not only improve the heating efficiency when hot air needs to be blown and is beneficial to improving the efficiency of blowing hot air, but also reduce the wind resistance to cold air when cold air needs to be blown and is beneficial to reducing the loss of the amount of cold air by connecting the spiral heating wire 200 to the seat body 100. In addition, the temperature-resistant member 300 can prevent the heating wire 200 from dropping when the heating wire 200 fails and breaks due to over-high temperature, which is beneficial to improving the safety of the heating plate 10.
It should be noted that the heating wire 200 is spirally disposed, and the temperature-resistant member 300 made of a high-temperature-resistant material can be disposed through the spiral hole of the heating wire 200 and maintain a tensioned state. Therefore, even if the heating wire 200 is broken or loses toughness due to over-high temperature or other reasons, the temperature-resistant member 300 can still provide a supporting force to the heating wire 200, so that the heating wire 200 is kept in a safe position, contact with nearby people or objects is avoided, and the usability and safety of the heating wire 200 are ensured.
In addition, the expression that the highest temperature T1 that the temperature-resistant member 300 can bear is greater than the highest temperature T2 that the heating wire 200 can bear is understood as follows: when the heating wire 200 is broken or loses toughness due to an excessive temperature, the temperature-resistant member 300 can still maintain a tensioned state, thereby ensuring the stability of the supporting force provided to the heating wire 200, so that the heating wire 200 can still maintain a safe position.
It should be noted that the number of the heating wires 200 may be one, two, or more. The number of the temperature resistant members 300 should be arranged in one-to-one correspondence with the heat generating wires 200 so that each heat generating wire 200 is maintained in a safe position to ensure the usability of each heat generating wire 200.
Of course, each heating wire 200 can be independently arranged or can be integrally arranged end to end. When the plurality of heating wires 200 are arranged end to end, the plurality of heating wires 200 are connected in series with the power supply 60 (as shown in fig. 7), and the number of connection points between the heating wires 200 and the power supply 60 can be reduced. Because the heating wires 200 can be made of the same material, a longer heating wire 200 can be directly pressed and molded during manufacturing and then electrically connected with the power supply 60, which is beneficial to reducing the manufacturing cost and improving the manufacturing efficiency.
In one embodiment, as shown in fig. 3, the holder body 100 includes a first bracket 110, a second bracket 120, and a connecting member 130. The first holder 110 and the second holder 120 are arranged concentrically. Both ends of the connecting member 130 are connected to the first bracket 110 and the second bracket 120, respectively.
Therefore, the connecting member 130 connects the first bracket 110 and the second bracket 120 to form a whole, and a placement area 140 for connecting the heating wire 200 and the temperature-resistant member 300 is formed between the first bracket 110 and the second bracket 120.
It is understood that the number of the connection member 130 may be plural. As shown in fig. 3, a plurality of connectors 130 are disposed at equal intervals in the circumferential direction of the first stent 110 (or the second stent 120) to divide the space between the first stent 110 and the second stent 120 into a plurality of placement regions 140.
Specifically, in the present embodiment, as shown in fig. 2 and 3, the number of the connecting members 130 is six, and the number of the placement areas 140 is also six. Four heating wires 200 are disposed in each placement area 140 in a spiral shape. Further, in the present embodiment, the diameter of the first bracket 110 is larger than the diameter of the second bracket 120.
In another embodiment, first stent 110 and second stent 120 may be arranged in a concentric triangular shape, a concentric polygonal shape, a concentric irregular ring shape, or the like. As long as it can be ensured that the placement area 140 for the heating wire 200 and the temperature-resistant member 300 can be left between the first bracket 110 and the second bracket 120.
In one embodiment, as shown in fig. 2 and 4, a first mica sheet 410 is attached to a side of the first bracket 110 facing the second bracket 120. The first mica sheet 410 is provided with a first through hole 411. A second mica sheet 420 is attached to a side of the second bracket 120 facing the first bracket 110. The second mica sheet 420 is provided with a second through hole 422. Two ends of the heating wire 200 respectively penetrate through the first through hole 411 and the second through hole 422, and are connected with the first mica sheet 410 and the second mica sheet 420.
Therefore, the two ends of the heating wire 200 are connected to the first mica sheet 410 and the second mica sheet 420 respectively, so as to maintain the connection with the first bracket 110 and the second bracket 120. The heater 200 is prevented from being in direct contact with the first bracket 110 or the second bracket 120, so that the first bracket 120 and the second bracket 120 are prevented from being hot-melted due to the over-high temperature of the heater 200, and the usability of the first bracket 110 and the second bracket 120 is ensured.
In addition, the heating wire 200 is in a wire shape, and the maximum outer diameter of the heating wire 200 is smaller than the minimum aperture of the first through hole 411 and the second through hole 422, so that the heating wire 200 can be inserted into the first through hole 411 and the second through hole 422 and is connected with the first mica sheet 410 and the second mica sheet 420.
It is understood that temperature resistant member 300 may be a temperature resistant strip, sheet, wire, or the like. Specifically, in the present embodiment, the temperature-resistant member 300 is a temperature-resistant wire disposed in a wire shape. Therefore, the temperature-resistant member 300 can also pass through the first through hole 411 and the second through hole 422, and is connected with the first mica sheet 410 and the second mica sheet 420.
It should be noted that the first mica sheet 410 and the second mica sheet 420 may be the same or different. Specifically, in the present embodiment, the first mica sheet 410 and the second mica sheet 420 are identical.
In one embodiment, as shown in FIG. 2, the heater 200 is in the form of a coil spring. Therefore, when the heat generating wire 200 is connected with the first and second mica sheets 410 and 420, the heat generating wire 200 may be in an expanded state. That is, the length of the heating wire 200 in the natural tension state should be smaller than the length of the heating wire 200 when the two ends are connected to the first mica sheet 410 and the second mica sheet 420, respectively. So set up, can make heater 200 keep certain tension in length direction, be favorable to promoting firmness and stability when heater 200 is in the assembled state, avoid heater 200 flagging.
In addition, the heating wire 200 is formed in a spiral shape, so that the actual length of the heating wire 200 (the space length is defined as the length when the heating wire 200 is connected to the first mica sheet 410 and the second mica sheet 420, and the actual length of the heating wire 200 is the length between the two ends after the heating wire 200 is straightened) can be increased as much as possible within the same space length, thereby increasing the heating power of the heating wire 200.
It should be noted that, the connection manner between the first mica sheet 410 (the second mica sheet 420) and the first bracket 110 (the second bracket 120) may be, but is not limited to, screwing, clipping, pinning, bonding, riveting, welding, and the like. Of course, the molding may be integrally formed. Specifically, in the present embodiment, the first mica sheet 410 (the second mica sheet 420) is connected to the first bracket 110 (the second bracket 120) in a snap-fit manner.
In one embodiment, as shown in fig. 2 and 6, the heat generating tray 10 further includes a plurality of fixing members 500. The fixing member 500 is used to fix the first mica sheet 410 on the first bracket 110 and fix the second mica sheet 420 on the second bracket 120.
In this embodiment, the width of the first mica sheet 410 (the second mica sheet 420) is smaller than the width of the first bracket 110 (the second bracket 120), so that the fixing member 500 is provided with a groove 510 in a shape of a Chinese character 'tu', and the first mica sheet 410 (the second mica sheet 420) is directly fixed on the first bracket 110 (the second bracket 120) in a clamping manner.
In one embodiment, as shown in fig. 2 and 3, the heat generating tray 10 further includes a third mica sheet 430. One end of the third mica sheet 430 is connected to the connecting member 130, and the other end is used for abutting against the heating wire 200. When a plurality of heat generating wires 200 are arranged end to end, the heat generating wires 200 will contact the connecting member 130 when wound to the adjacent placement area 140. Therefore, the third mica sheet 430 which can abut against the heating wire 200 is arranged on the connecting member 130, so that the direct contact between the heating wire 200 and the connecting member 130 can be avoided, the hot melting of the connecting member 130 caused by the overhigh temperature of the heating wire 200 is prevented, and the service performance of the connecting member 130 is ensured.
Further, as shown in fig. 3, an end of the third mica sheet 430 facing away from the connecting member 130 is provided with a recess 433. The portion of the heating wire 200 wound around the connecting member 130 abuts against the recess 433. Therefore, the recess 433 can restrict the vibration of the heating wire 200 in a plurality of directions, so as to improve the stability of the heating wire 200 and avoid accidents caused by the vibration of the heating wire 200.
In one embodiment, as shown in fig. 2, the heat generating tray 10 further includes a fuse assembly 600. The fuse assembly 600 is connected in series with the heating wires 200 arranged end to end. The fuse assembly 600 includes a temperature circuit breaker 620 and a temperature fuse 610. Therefore, the fuse assembly 600 composed of the temperature circuit breaker 620 and the temperature fuse 610 can automatically open the circuit and stop heating when the temperature of the heating wire 200 is higher than the predetermined temperature, which is beneficial to further improving the safety performance of the heating plate 10.
As shown in fig. 1, the present application also provides a blowing device 1. The blowing device 1 includes a front case 20, a heating plate 10, fan blades 30, and a rear case 40, which are sequentially arranged. Therefore, the wind blown by the rotation of the fan blades 30 passes through the heat generating plate 10 before it reaches the target object. Therefore, when the blowing device 1 needs to blow out hot wind, the power supply 60 can be connected to the heating wire 200 to operate the heating wire 200 to generate heat, so that the temperature of the wind blowing to the object is raised. When the blowing device 1 needs to blow out cool air (without heating), the power supply to the heating wire 200 can be cut off, so that the heating wire 200 stops working, and the air blown out by the rotation of the fan blades 30 passes through the gaps of the heating wire 200 arranged in a spiral shape, and then is blown to a target object.
It is understood that the blowing device 1 in the present application may be, but is not limited to, a hand-held fan, a seat-type fan, etc.
Further, as shown in fig. 7, the blowing device 1 further includes a switch 50 and a motor 70. The motor 70 is electrically connected to the fan blade 30 to drive the fan blade 30 to rotate. The fan blades 30 rotate to bring about a nearby air flow, thereby blowing air toward the front case 20.
In addition, the blowing device 1 may be connected to the commercial power to be connected to the power supply 60, or a battery may be provided as the power supply 60 to supply power to the heating wire 200 and the motor 70.
It should be noted that references in the specification to "one embodiment," "an example embodiment," "some embodiments," etc., indicate that the embodiment described may include a particular feature, structure, or characteristic, but every embodiment may not necessarily include the particular feature, structure, or characteristic. Moreover, such phrases are not necessarily referring to the same embodiment. Further, when a particular feature, structure, or characteristic is described in connection with an embodiment, it is within the knowledge of one skilled in the art to effect such feature, structure, or characteristic in connection with other embodiments whether or not explicitly described.
It should be readily understood that "over 8230" \8230on "," over 82308230; "over 8230;" and "over 8230; \8230; over" in the present disclosure should be interpreted in the broadest manner such that "over 8230;" over 8230 ";" not only means "directly over something", but also includes the meaning of "over something" with intervening features or layers therebetween, and "over 8230;" over 8230 ";" or "over 8230, and" over "not only includes the meaning of" over "or" over "but also may include the meaning of" over "or" over "with no intervening features or layers therebetween (i.e., directly over something).
Furthermore, spatially relative terms, such as "below," "lower," "above," "upper," and the like, may be used herein for ease of description to describe one element or feature's illustrated relationship to another element or feature. Spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. The device may have other orientations (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly as well.
It is noted that, in this document, relational terms such as "first" and "second," and the like, may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrases "comprising a," "8230," "8230," or "comprising" does not exclude the presence of additional like elements in a process, method, article, or apparatus that comprises the element.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the present application, and not to limit the same; although the present application has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art will understand that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present application.
Claims (10)
1. A heat generating tray, characterized by comprising:
a base body;
the two ends of the heating wire are respectively connected with the seat body; and
the temperature-resistant piece is connected to the base body and is arranged in the heating wire in a penetrating mode, and the highest temperature T1 which can be borne by the temperature-resistant piece is larger than the highest temperature T2 which can be borne by the heating wire.
2. A heat generating plate according to claim 1, wherein the base includes a connecting member, and a first bracket and a second bracket arranged concentrically, and both ends of the connecting member are connected to the first bracket and the second bracket, respectively.
3. The heating plate according to claim 2, wherein a first mica sheet is connected to a side of the first bracket facing the second bracket, and the first mica sheet is provided with a first through hole;
one side of the second support, which faces the first support, is connected with a second mica sheet, and the second mica sheet is provided with a second through hole; and (c) a second step of,
the heating wire is arranged in a spiral spring shape, and two ends of the heating wire penetrate through the first through hole and the second through hole respectively and are connected with the first mica sheet and the second mica sheet.
4. The heat generating tray according to claim 3, further comprising a plurality of fixing members for fixing the first mica sheet on the first bracket and the second mica sheet on the second bracket.
5. The heating plate according to claim 3, wherein the temperature-resistant member is disposed in a filament shape, and both ends of the temperature-resistant member are respectively inserted into the first through hole and the second through hole and connected to the first mica sheet and the second mica sheet.
6. A hot plate according to claim 3, characterized in that the hot plate includes a plurality of the heating wires arranged end to end.
7. A hot plate according to claim 6, further comprising a third mica sheet having one end connected to the connecting member and the other end abutting against the heater.
8. A heating tray according to claim 7, wherein a recess is provided at an end of the third mica sheet facing away from the connecting member, and a part of the heating wire wound around the connecting member abuts against the recess.
9. A hot plate according to claim 6, further comprising a fuse assembly connected in series with the heater wires arranged end-to-end.
10. An air blowing device, comprising a front case, the heat generating plate of any one of claims 1 to 9, fan blades, and a rear case, which are arranged in sequence.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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CN202221695871.6U CN217957342U (en) | 2022-06-30 | 2022-06-30 | Heating plate and blowing device |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
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CN202221695871.6U CN217957342U (en) | 2022-06-30 | 2022-06-30 | Heating plate and blowing device |
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Publication Number | Publication Date |
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CN217957342U true CN217957342U (en) | 2022-12-02 |
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CN202221695871.6U Active CN217957342U (en) | 2022-06-30 | 2022-06-30 | Heating plate and blowing device |
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- 2022-06-30 CN CN202221695871.6U patent/CN217957342U/en active Active
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