CN218526450U - Heating assembly and household appliance - Google Patents
Heating assembly and household appliance Download PDFInfo
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- CN218526450U CN218526450U CN202221855582.8U CN202221855582U CN218526450U CN 218526450 U CN218526450 U CN 218526450U CN 202221855582 U CN202221855582 U CN 202221855582U CN 218526450 U CN218526450 U CN 218526450U
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- 238000010438 heat treatment Methods 0.000 title claims abstract description 149
- 238000001514 detection method Methods 0.000 claims abstract description 88
- 238000005192 partition Methods 0.000 claims description 31
- 238000009434 installation Methods 0.000 abstract description 45
- 235000017166 Bambusa arundinacea Nutrition 0.000 abstract description 12
- 235000017491 Bambusa tulda Nutrition 0.000 abstract description 12
- 241001330002 Bambuseae Species 0.000 abstract description 12
- 235000015334 Phyllostachys viridis Nutrition 0.000 abstract description 12
- 239000011425 bamboo Substances 0.000 abstract description 12
- 230000000694 effects Effects 0.000 abstract description 8
- 230000008859 change Effects 0.000 description 9
- 238000012360 testing method Methods 0.000 description 9
- 230000007246 mechanism Effects 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 238000002474 experimental method Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000012544 monitoring process Methods 0.000 description 2
- 230000008901 benefit Effects 0.000 description 1
- 125000004122 cyclic group Chemical group 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
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- 238000004804 winding Methods 0.000 description 1
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Abstract
The utility model discloses a heating element and household electrical appliances. The heating component comprises an installation barrel, a first heating piece and a second heating piece, wherein an air supply channel is formed on the inner ring side of the installation barrel; the first heating element is arranged in the mounting cylinder and used for heating airflow flowing through the air supply channel; the second heating element is at least partially positioned at the inlet of the air supply channel; the temperature control detection structure is arranged in the air supply channel and is positioned at the rear side of the second heating piece along the airflow flowing direction. The utility model discloses a make the temperature distribution of air current in the installation section of thick bamboo more even, guaranteeing under the prerequisite of the same power of heater moreover, first heating member can set up shorter, still can guarantee the heating effect of air current, and heating element's volume can set up littleer simultaneously, more can satisfy the demand of miniaturized product.
Description
Technical Field
The utility model relates to a household electrical appliances technical field, concretely relates to heating element and household electrical appliances.
Background
Traditional household electrical appliances, such as hair dryers, hair curling bars, etc., heat air flowing through a housing through a heating wire arranged in the housing, and then blow out hot air for users to use. But the heater of traditional household electrical appliances generally is the annular disk and locates in the casing, and the air temperature that is close to heater department is higher, and the air temperature that is located the heater middle part is then lower for the air temperature who blows off is inhomogeneous, and in addition, control by temperature change detection device generally locates the middle part of heater strip, so can make the actual temperature that detects temperature and heater differ great, and can not play the control by temperature change guard action.
SUMMERY OF THE UTILITY MODEL
Therefore, the utility model aims to solve the technical problem that the heating of traditional household electrical appliances is inhomogeneous, makes the control by temperature change testing result of household electrical appliances inaccurate moreover simultaneously, can't effectively protect household electrical appliances.
In order to solve the technical problem, the utility model provides a heating element, include:
the inner ring side of the mounting cylinder forms an air supply channel;
the first heating element is arranged in the mounting cylinder and used for heating airflow flowing through the air supply channel;
the second heating element is at least partially positioned at the inlet of the air supply channel;
and the temperature control detection structure is arranged in the air supply channel and is positioned at the rear side of the second heating piece along the airflow flowing direction.
Optionally, in the above heat generating assembly, the first heat generating element includes a first heat generating wire, and the first heat generating wire is surrounded on the inner side of the mounting cylinder.
Optionally, in the above heating assembly, the second heating element includes a second heating wire, and the second heating wire is disposed at a port of the mounting tube.
Optionally, in the heating assembly, the first heating element further includes a support structure, the support structure is disposed in the mounting cylinder, and the first heating element and the temperature control detection structure are both mounted on the support structure.
Optionally, in the above heating assembly, the support structure includes a partition plate, the partition plate is disposed along a radial direction of the mounting cylinder, both ends of the partition plate in the radial direction are connected to the mounting cylinder, and the first heating element is annularly disposed to penetrate through the partition plate.
Optionally, in the above heat generating assembly, the partition plates are provided in plurality, and the partition plates partition the inner side of the mounting barrel into a plurality of regions.
Optionally, in the above heat generating assembly, the second heat generating element is disposed at an end of the partition.
Optionally, in the heating assembly, the temperature control detection structure includes a first detection element, and the first detection element is disposed in the installation cylinder.
Optionally, in the heating assembly, the temperature control detection structure further includes a second detection element and a third detection element, and both the second detection element and the third detection element are disposed in the mounting cylinder;
the critical detection temperature of the first detection piece is smaller than the critical detection temperature of the second detection piece, and the critical detection temperature of the second detection piece is smaller than the critical detection temperature of the third detection piece.
The utility model also provides a household electrical appliances, include:
the heating component; and (c) a second step of,
and the air outlet end of the air flow generating device is communicated with the mounting cylinder of the heating component, and one end of the heating component, which is provided with the second heating piece, is close to the air flow generating device.
The technical scheme provided by the utility model, following advantage has:
the utility model provides a heating component, which comprises an installation cylinder, a first heating piece, a second heating piece and a temperature control detection structure, wherein the airflow passing through the installation cylinder is heated by the first heating piece in the installation cylinder; the second heating part is arranged at the inlet of the air supply channel, so that the air flow is heated by the second heating part at the inlet of the air supply channel, and can be heated by the first heating part and the second heating part after entering the air supply channel; and the control by temperature change detects the rear side that the structure is located the second and generates heat a piece along the air current direction of flow for the control by temperature change detects the structure and can be located the second and generate heat a zone of heating of piece, and the air current generates heat a piece after heating jointly through first heating piece and second, and the temperature distribution of air current in the installation section of thick bamboo is more even, and consequently the control by temperature change detects the result that the structure detected out and also more reliable, can protect the subassembly that generates heat better. Moreover, on the premise of ensuring the same power of the heating wire, the first heating part can be set to be shorter, the heating effect of the airflow can still be ensured, and meanwhile, the volume of the heating component can be set to be smaller so as to meet the requirement of a miniaturized product.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a schematic structural diagram of an embodiment of a heat generating component according to the present invention;
FIG. 2 is a schematic structural view of another perspective of the heating element shown in FIG. 1;
fig. 3 is an exploded view of the heat generating component shown in fig. 1.
Description of reference numerals:
100-a heat generating component; 1-mounting a cylinder; 2-a first heat generating element; 21-a first heating wire; 22-a scaffold structure; 221-a partition plate; 3-a second heat generating member; 31-a second heating wire; 4-temperature control detection structure; 41-a first detection member; 42-a second detection member; 43-third test element.
Detailed Description
The technical solution of the present invention will be described clearly and completely with reference to the accompanying drawings, and obviously, the described embodiments are some, but not all embodiments of the present invention. The present invention will be described in detail below with reference to the accompanying drawings in conjunction with embodiments. It should be noted that, in the present invention, the embodiments and features of the embodiments may be combined with each other without conflict.
It should be noted that the terms "first," "second," and the like in the description and claims of the present invention and in the drawings described above are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order.
In the present application, where the contrary is not intended, the use of directional words such as "upper, lower, top and bottom" is generally with respect to the orientation shown in the drawings, or with respect to the component itself in the vertical, perpendicular or gravitational direction; likewise, for ease of understanding and description, "inner and outer" refer to the inner and outer relative to the profile of the components themselves, but the above directional words are not intended to limit the invention.
Example 1
The present embodiment provides a heating assembly 100, as shown in fig. 1 and fig. 2, the heating assembly 100 includes an installation tube 1, a first heating element 2, a second heating element 3, and a temperature control detection structure 4, the installation tube 1 is in a tubular shape with two open ends, an air supply channel is formed on an inner ring side of the installation tube, and an air flow can flow from an opening at one end of the installation tube 1 to an opening at the other end; the first heating element 2 is arranged in the mounting cylinder 1 and used for heating airflow flowing through the air supply channel, so that cold airflow forms hot airflow to be blown out after flowing through the mounting cylinder 1 for users to use; at least part of the second heating part 3 is positioned at the inlet of the air supply channel, so that at least part of the area in the middle of the installation barrel 1 forms a heating area of the second heating part 3, the second heating part 3 can heat air flow at the inlet of the air supply channel through the second heating part 3, the air flow can be heated through the first heating part 2 and the second heating part 3 after entering the air supply channel, and the plurality of heating parts can effectively reduce cold air areas in the installation barrel 1, so that the heating effect is better, and the temperature of the air flow is more uniform; and locate control by temperature change detection structure 4 in the air supply channel, and be located the second and generate heat 3 along the rear side of air current flow direction for control by temperature change detection structure 4 can be located the second and generate heat the zone of heating of 3, and the air current is after heating jointly through first and second generate heat 2 and 3, and the temperature distribution of air current in the installation section of thick bamboo 1 is more even, therefore the result that control by temperature change detection structure 4 detected out is also more reliable, can protect heating element 100 better. Moreover, on the premise of ensuring the same power of the heating wire, the first heating element 2 can be set to be shorter, the heating effect of the airflow can still be ensured, and meanwhile, the volume of the heating component 100 can be set to be smaller so as to meet the requirement of a miniaturized product.
As shown in fig. 1, the first heating element 2 may include a first heating wire 21, the first heating wire 21 may be in a closed or non-closed ring shape, a square shape or an irregular shape and is disposed around the inner side of the mounting cylinder 1, and the cross section of the first heating wire 21 may be in a continuous arc shape, or a plurality of discontinuous arc shapes, or a continuous circular ring shape. Preferably, the first heating wire 21 can be continuously arranged in a full circle in a ring shape to match with the shape of the inner side wall of the installation cylinder 1, so that the distribution of the first heating wire 21 at all positions inside the installation cylinder 1 is more uniform, and the heating effect is more uniform. The first heating wire 21 can be formed by winding a whole continuous metal wire, and the first heating wire 21 is spirally coiled on the inner side of the inner side wall of the mounting cylinder 1, so that the heating is more uniform.
In one embodiment, the first heating wire 21 may be attached to the inner side of the mounting tube 1 by means of adhesion.
In another embodiment, the first heat generating element 2 may further comprise a bracket structure 22, and the first heat generating element 2 may be mounted inside the mounting tube 1 through the bracket structure 22, so as to facilitate installation and maintenance.
Similarly, for the second heating element 3, as shown in fig. 1 and fig. 2, the second heating element 3 includes a second heating wire 31, the second heating wire 31 is disposed at a nozzle of one end of the installation cylinder 1, and the nozzle is an inlet end of the air flow, so that the air flow at the inlet of the installation cylinder 1 can be firstly heated by the second heating wire 31, and then enters the installation cylinder 1, and is heated again by the first heating element 2, and the temperature rise is obviously faster. Moreover, preferably, can set up the second and generate heat 3 in the middle part of the nozzle of an installation section of thick bamboo 1, when first generate heat 2 be cyclic annular when enclosing the inside wall of an installation section of thick bamboo 1, the air current temperature that is close to the inside wall week side of an installation section of thick bamboo 1 is higher, can heat the air current in the middle part of an installation section of thick bamboo 1 through second generate heat 3 to can make the air current temperature everywhere of an installation section of thick bamboo 1 inboard more even, the air-out effect is better.
In one embodiment, the second heater 31 may be directly mounted on the mounting tube 1.
In another embodiment, as shown in fig. 2, the second heating wire 31 may also be mounted on the above-mentioned support structure 22, and during assembly, the first heating wire 21 and the second heating wire 31 may be mounted on the support structure 22 first, and then the whole is mounted in the mounting tube 1, so that the assembly is more convenient.
The second heating wire 31 can be provided with a plurality of, and each second heating wire 31 extends along the radial direction of the installation cylinder 1 to be evenly arranged at the cylinder mouth of the installation cylinder 1.
For the supporting structure 22, in order to facilitate the installation of the first heating wire 21 and the second heating wire 31, as shown in fig. 2 and fig. 3, the supporting structure 22 includes the partition plates 221, each partition plate 221 is disposed along the radial extension of the installation cylinder 1, and both ends of the partition plate 221 along the radial direction of the installation cylinder 1 are connected to the installation cylinder 1, so as to be in interference fit or clamped connection with the installation cylinder 1, the first heating element 2 is annularly disposed and is penetrated through the partition plate 221, so that the first heating wire 21 in a spiral shape can be uniformly disposed in the installation cylinder 1 at intervals, and thus the heating effect is better.
Preferably, the second heat generating member 3 is located at an end of the partition 221, a mounting protrusion may be further provided at the end of the partition 221, and the second heat generating member 3 may be wound around a circumference of the mounting protrusion to be fixed to the partition 221.
Also, the partition 221 may be provided in plurality, and the plurality of partitions 221 partition the inside of the installation tube 1 into a plurality of regions, so that the air flow is directed along the partitions 221 from one end toward the other end, so that the flow velocity of the air flow is higher.
For the temperature control detection structure 4, the temperature control detection structure is mainly used for monitoring the temperature in the installation cylinder 1, avoiding the overhigh temperature in the installation cylinder 1 and protecting the heating component 100 in time. Wherein, the temperature control detection structure 4 comprises a first detection part 41, the first detection part 41 is arranged in the installation cylinder 1, and the second heating part 3 and the first detection part 41 are respectively arranged at two opposite ends of the installation cylinder 1. The air flow temperature at the air outlet end of the installation barrel 1 is the highest, and the first detection piece 41 is arranged at the air outlet end of the installation barrel 1, so that the highest temperature can be detected better, and adjustment can be carried out in time.
Specifically, the first detecting element 41 may be an NTC (Negative Temperature Coefficient thermistor), and the heating element 100 may further include a controller, where the first detecting element 41 is electrically connected to the controller, and when the Temperature detected by the first detecting element 41 exceeds a preset value, the controller may control the heating element 100 to be powered off according to a detection result of the first detecting element 41, so as to perform power-off protection, and avoid that the heating element 100 has an excessively high Temperature and damages a shell or other structures of a product. Setting the normal working temperature of the NTC as a1, the return temperature after shutdown as b1, and the temperature during the wind blockage test as c1, wherein the preset temperature X of the NTC power-off protection needs to satisfy a1< b1< X < c1.
Further, as shown in fig. 3, the temperature control detection structure 4 further includes a second detection member 42 and a third detection member 43, the second detection member 42 and the third detection member 43 are located between the first detection member 41 and the second heat generating member 3, and in the axial direction along the mounting tube 1, the second detection member 42 and the third detection member 43 are sequentially disposed, that is, in the direction from the inlet of the mounting tube 1 to the outlet of the mounting tube 1, the second heat generating member 3, the third detection member 43, the second detection member 42 and the first detection member 41 are sequentially disposed, wherein the critical detection temperature of the first detection member 41 is less than the critical detection temperature of the second detection member 42, and the critical detection temperature of the second detection member 42 is less than the critical detection temperature of the third detection member 43. When the first detecting member 41 detects failure, monitoring can be continued through the second detecting member 42 and the third detecting member 43 to ensure accuracy and reliability of temperature supervision.
Preferably, the second detecting element 42 may be configured as a temperature controller, and the third detecting element 43 may be configured as a fuse, wherein a normal operating temperature of the NTC is set as a2, a temperature of the NTC after shutdown is set as b2, and a temperature during the wind blockage test is set as c2, and then a preset temperature Y of the second detecting element 42 for power-off protection needs to satisfy a2< b2< Y < c2. Setting the normal working temperature of the fuse as a3, the return temperature after shutdown as b3, and the temperature during the wind blockage test as c3, wherein the preset temperature Z of the fuse for power-off protection needs to satisfy a3< b3< Z < c3. In the working process of the heating component 100, the NTC is firstly used, when the NTC fails, the temperature controller plays a role in protection, and when the NTC and the temperature controller both fail, the fuse wire plays a role in protection, and the heating component 100 is more reliably protected by a multiple protection mechanism.
The first detecting element 41, the second detecting element 42, and the third detecting element 43 are all provided at the middle of the mounting tube 1, and are all mounted on the partition 221. Specifically, the middle part of the partition 221 is provided with a mounting groove, the second detection piece 42 and the third detection piece 43 are mounted in the mounting groove, the first detection piece 41 is located at the end part of the partition 221, and the second heating piece 3 can be at least partially opposite to the first detection piece 41, the second detection piece 42 and the third detection piece 43, so that the first detection piece 41, the second detection piece 42 and the third detection piece 43 can be all located in a hot air area, thereby the detection results of the first detection piece 41, the second detection piece 42 and the third detection piece 43 are more accurate, and the protection mechanism is more perfect and reliable.
In a detection experiment, when the heating assembly 100 in the traditional household appliance product normally works, the arrangement positions of the NTC, the temperature controller and the fuse wire are the same as those in the utility model, but the second heating element 3 is not arranged in the traditional heating assembly 100, so that the NTC, the temperature controller and the fuse wire are all positioned in the middle of the mounting cylinder 1, and when the traditional heating assembly 100 normally works, the temperature controller is about 30 degrees, and the temperature of the fuse wire is about 80 degrees; when the machine is stopped and the temperature is returned, the temperature of the temperature controller is about 90 ℃, and the temperature of the fuse wire is about 120 ℃; during the test of stifled wind, temperature controller department is about 50 degrees, and fuse wire temperature is about 100 degrees, though do not reach fusing preset temperature, and the casing of the week side of heating element 100 or the material of part have melted this moment, and it is very big that the temperature of temperature control detection structure 4 department is different with actual temperature obviously, and the testing result is inaccurate, therefore temperature control detection structure 4 plays the guard action not.
When the heating element 100 provided by the embodiment is used for testing, when the heating element 100 works normally, the detection temperature at the temperature controller is about 90 degrees, and the temperature at the fuse wire is about 100 degrees; when the machine is stopped and the temperature is returned, the temperature of the temperature controller is about 120 ℃, and the temperature of the fuse wire is about 150 ℃; during the wind blockage test, the temperature controller is at 130-140 deg.c, and the fuse wire is at 180-190 deg.c. The protection value of the temperature controller is set to be 135 degrees, the protection value of the fuse wire is set to be 184 degrees, the temperature of the melted material is not reached at the moment, the requirement of a protection mechanism can be met, and therefore the heating assembly 100 is effectively protected.
The above-mentioned detection experiment provided by way of example only does not limit the specific operating temperature of the heating element 100, and the specific temperature control temperature can be set according to the actual product.
Example 2
This embodiment provides a household electrical appliances, this household electrical appliances can be the hair-dryer, curly hair stick etc, this household electrical appliances is including foretell heating element 100, and air current generating device, this air current generating device can be axial fan or centrifugal fan, air current generating device's air-out end and the 1 intercommunication of the installation section of thick bamboo of heating element 100, heating element 100 is equipped with the second and generates heat the one end of piece 3 and is close to this air current generating device setting, make the air current that produces through air current generating device can get into in the air supply channel of installation section of thick bamboo 1 through the one end of second heating piece 3, heat the back to the air current jointly through first heating piece 2 and second heating piece 3, send out hot-blast from the other end of installation section of thick bamboo 1, be used for the user. The temperature distribution of air current in installation section of thick bamboo 1 is more even, moreover, under the prerequisite of guaranteeing the same power of heater, owing to be provided with the second and generate heat 3, first heating 2 can set up shorter, and still can guarantee the heating effect of air current, and simultaneously, the volume of the subassembly 100 that generates heat can set up littleer for the size of household electrical appliances product can be littleer, more can satisfy the demand of miniaturized product.
It is obvious that the above described embodiments are only some of the embodiments of the present invention, and not all of them. Based on the embodiments in the present invention, a person skilled in the art can make changes or changes in other different forms without creative work, and all should belong to the protection scope of the present invention.
Claims (10)
1. A heat generating component, comprising:
the inner ring side of the mounting cylinder forms an air supply channel;
the first heating element is arranged in the mounting cylinder and used for heating airflow flowing through the air supply channel;
the second heating element is at least partially positioned at the inlet of the air supply channel;
and the temperature control detection structure is arranged in the air supply channel and is positioned at the rear side of the second heating piece along the airflow flowing direction.
2. The heat generating component of claim 1 wherein said first heat generating element comprises a first heat generating wire, said first heat generating wire being enclosed inside said mounting tube.
3. The heating assembly as claimed in claim 1, wherein the second heating element comprises a second heating wire, and the second heating wire is disposed at a nozzle of the mounting barrel.
4. The heating assembly as claimed in any one of claims 1 to 3, wherein the first heating element further comprises a support structure, the support structure is disposed in the mounting cylinder, and the first heating element and the temperature control detection structure are both mounted on the support structure.
5. The heating assembly as claimed in claim 4, wherein the supporting structure includes a partition plate, the partition plate extends along a radial direction of the mounting cylinder, both ends of the partition plate in the radial direction are connected to the mounting cylinder, and the first heating element is disposed annularly to penetrate the partition plate.
6. The heating element as claimed in claim 5, wherein the partition is provided in plurality, and the plurality of partitions partition the inside of the mounting cylinder into a plurality of regions.
7. The heating assembly of claim 5, wherein the second heating element is disposed at an end of the partition.
8. The heating element as claimed in claim 1, wherein the temperature control detecting structure comprises a first detecting member, and the first detecting member is disposed in the mounting cylinder.
9. The heating assembly as claimed in claim 8, wherein the temperature control detection structure further comprises a second detection member and a third detection member, and the second detection member and the third detection member are disposed in the mounting cylinder;
the critical detection temperature of the first detection piece is smaller than the critical detection temperature of the second detection piece, and the critical detection temperature of the second detection piece is smaller than the critical detection temperature of the third detection piece.
10. An appliance, comprising:
the heat generating component of any one of claims 1 to 9; and the number of the first and second groups,
and the air outlet end of the air flow generating device is communicated with the mounting barrel of the heating component, and one end of the heating component, which is provided with the second heating part, is close to the air flow generating device.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221855582.8U CN218526450U (en) | 2022-07-06 | 2022-07-06 | Heating assembly and household appliance |
| PCT/CN2023/087768 WO2024007658A1 (en) | 2022-07-06 | 2023-04-12 | Heater and hair care device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221855582.8U CN218526450U (en) | 2022-07-06 | 2022-07-06 | Heating assembly and household appliance |
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| Publication Number | Publication Date |
|---|---|
| CN218526450U true CN218526450U (en) | 2023-02-24 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221855582.8U Active CN218526450U (en) | 2022-07-06 | 2022-07-06 | Heating assembly and household appliance |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218526450U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2024007658A1 (en) * | 2022-07-06 | 2024-01-11 | 追觅创新科技(苏州)有限公司 | Heater and hair care device |
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2022
- 2022-07-06 CN CN202221855582.8U patent/CN218526450U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2024007658A1 (en) * | 2022-07-06 | 2024-01-11 | 追觅创新科技(苏州)有限公司 | Heater and hair care device |
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