Heater and electric hair drier

Abstract

The utility model provides a heater and an electric hair drier. The heater comprises a cylinder body; the heating wire is coiled on the outer side of the cylinder body; and the electrical component is fixedly connected to the middle part of the axial direction of the cylinder body and is electrically connected with the heating wire. According to the technical scheme, the electrical component is fixedly connected to the middle of the cylinder in the axial direction, so that the axial length of the cylinder is shortened, and miniaturization of the heater is facilitated. The electric hair drier is provided with the heater. The axial length of the electric hair drier adopting the heater is shortened, miniaturization manufacturing of the electric hair drier is facilitated, and user requirements are met.

Description

Technical Field

[0001] The utility model relates to the technical field of household appliances, and particularly relates to a heater and a hair dryer. Background Art

[0002] With the increase in the variety of hair dryers on the market, more and more users not only pay attention to the practicality of hair dryers, but also begin to pay attention to the aesthetics and miniaturization of hair dryers.

[0003] The heater is one of the important components of the hair dryer. The heater heats the air by heating the heating wire 10, so that the hair dryer blows out hot air to meet the needs of users such as drying hair and styling.

[0004] Generally, electrical components such as fuses and thermostats are provided in the heater. However, in the existing heater structure as Figure 1 shown, the fuse 11 and the thermostat 12 are respectively arranged at both ends in the axial direction of the cylinder body 13, which increases the axial length of the heater, thereby affecting the convenience, practicality and aesthetics of use. Content of the Utility Model

[0005] Aiming at the above problems, the utility model provides a heater and a hair dryer, which shorten the axial length of the cylinder body and realize the miniaturization of the heater.

[0006] The utility model provides a heater, comprising:

[0007] A cylinder body;

[0008] A heating wire, which is wound around the outside of the cylinder body;

[0009] Electrical components, fixedly connected to the middle part in the axial direction of the cylinder body and electrically connected to the heating wire.

[0010] According to this technical solution, by fixedly connecting the electrical components to the middle part in the axial direction of the cylinder body, the axial length of the cylinder body is shortened, which is beneficial to the miniaturization of the heater.

[0011] In an optional technical solution of the utility model, the electrical components are fuses and / or thermostats.

[0012] According to this technical solution, when the temperature of the heating wire is too high or the current is too large, the fuse can be blown, thus disconnecting the circuit and preventing the temperature of the heating wire from rising further, improving the safety of the heater during use. The thermostat, also known as the temperature control switch, temperature protector or temperature controller, can physically deform inside the switch according to the temperature change of the working environment to achieve automatic conduction or disconnection, improving the safety of the heater during use. By arranging the fuse and / or thermostat in the middle of the axial direction of the cylinder body, not only can the axial length of the heater be effectively reduced, but also the feedback speed of the fuse and / or thermostat can be improved.

[0013] In an alternative technical solution of the present utility model, the electrical component is a fuse, and the fuse is adjacent to the inner side of the heating wire.

[0014] According to this technical solution, the fuse is adjacent to the inner side of the heating wire, closer to the heating wire, with better heat perception performance. When the temperature is too high or the current is too large, the fuse can quickly respond and disconnect to ensure the safety of the circuit.

[0015] In an alternative technical solution of the present utility model, the cylinder body has a groove adapted to the outer shape of the electrical component, and the electrical component is fixed by being embedded in the groove.

[0016] According to this technical solution, the groove is adapted to the outer shape of the electrical component, and the electrical component is embedded in the groove of the cylinder body, which is beneficial to saving the occupied space of the electrical component, realizing the miniaturization of the heater, and facilitating the subsequent installation of the heat insulation cylinder.

[0017] In an alternative technical solution of the present utility model, it further includes a heat insulation cylinder, and the heat insulation cylinder is on the outer side of the cylinder body.

[0018] According to this technical solution, the heat insulation cylinder is arranged on the outer side of the cylinder body, which can block the heat generated by the heating wire from being transferred to the cylinder body, prevent the cylinder body from deforming and being damaged under the high temperature of the heating wire, and is beneficial to extending the service life of the cylinder body.

[0019] In an alternative technical solution of the present utility model, the heat insulation cylinder is provided with a first opening portion that matches the shape and position of the electrical component.

[0020] According to this technical solution, the setting of the first opening portion can make the groove and the electrical component in the groove communicate with the space outside the heat insulation cylinder, ensuring that the temperature environment where the electrical component is located is basically the same as the temperature environment where the heating wire is located. When the temperature of the heating wire is too high, the electrical component can detect the temperature anomaly in time and make a response, ensuring the safety and reliability of the heater during use.

[0021] In an alternative technical solution of the present utility model, it further includes a plurality of heat insulation sheets arranged at intervals in the circumferential direction of the cylinder body. The heat insulation sheets extend in the radial direction of the cylinder body. The inner edge of the heat insulation sheet is fixedly connected to the cylinder body, and the heating wire is erected and wound around the outer edges of the plurality of heat insulation sheets.

[0022] According to this technical solution, the plurality of heat insulation sheets extend in the radial direction of the cylinder body and are fixedly connected to the cylinder body to form an installation bracket for the heating wire. The plurality of heat insulation sheets provide multiple support points, improving the position stability of the heating wire. The heating wire is erected and wound around the outer edges of the plurality of heat insulation sheets, so that the heat insulation sheets separate the heating wire from the cylinder body, thereby being able to block the transfer of the heat generated by the heating wire to the cylinder body, preventing the cylinder body from deforming and being damaged under the high temperature of the heating wire, and being beneficial to extending the service life of the cylinder body.

[0023] In an alternative technical solution of the present utility model, at least one heat insulation sheet has a second opening.

[0024] According to this technical solution, by providing the second opening in the heat insulation sheet, it is beneficial to the transfer of the heat generated by the heating wire in the adjacent areas of the heat insulation sheet, and is beneficial to improving the uniformity of the air temperature distribution between different heat insulation sheets.

[0025] In an alternative technical solution of the present utility model, the outer edge of the heat insulation sheet has a plurality of notches, and the heating wire is embedded in the notches.

[0026] According to this technical solution, the wound heating wire is embedded in the plurality of notches, so that the heating wires in different circles are separated from each other, improving the heat dissipation ability of the heating wire, preventing local high temperature caused by the aggregation of the heating wire, and ensuring the heating uniformity of the heater. Moreover, the setting of the notches can improve the installation stability of the heating wire.

[0027] The present utility model further provides a hair dryer having the above-mentioned heater. Description of the Drawings

[0028] Figure 1 It is a three-dimensional structural schematic diagram of a heater in the prior art.

[0029] Figure 2 It is a three-dimensional structural schematic diagram of a heater in an embodiment of the present utility model.

[0030] Figure 3 It is a schematic diagram of the relative positions of electrical components and the cylinder body in an embodiment of the present utility model.

[0031] Figure 4 It is a structural schematic diagram of electrical components in an embodiment of the present utility model.

[0032] Figure 5 It is a three-dimensional structural schematic diagram of the cylinder body in an embodiment of the present utility model.

[0033] Figure 6 This is a schematic perspective view of the heat insulation cylinder in the embodiment of the present utility model.

[0034] Figure 7 This is a schematic perspective view of the heat insulation sheet in the embodiment of the present utility model.

[0035] Reference numerals:

[0036] Prior art:

[0037] Heating wire 10; fuse 11; thermostat 12; cylinder body 13;

[0038] This application:

[0039] Cylinder body 2; groove 21; first groove part 211; second groove part 212; pressing plate 2121; clamping groove 2122; wire groove 213; heating wire 3; electrical component 4; fuse 41; thermostat 42; wire 43; heat insulation cylinder 5; first opening part 51; heat insulation sheet 6; second opening part 61; notch 62. Specific embodiments

[0040] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without making creative efforts shall fall within the protection scope of the present utility model.

[0041] The term "A and / or B" herein means including three cases: A and B, A alone, and B alone.

[0042] As Figure 2 、 Figure 3 shown, this embodiment provides a heater, including: a cylinder body 2, a heating wire 3, and an electrical component 4. The heating wire 3 is wound around the outside of the cylinder body 2 (in order to clearly show the structure of the heater, Figure 2 only a small section of the heating wire 3 is schematically shown wound around the outside of the cylinder body 2. The actual winding form of the heating wire 3 can be referred to Figure 1 , and those skilled in the art can control the number of winding turns of the heating wire 3 around the outside of the cylinder body 2 and the distance between the heating wires 3 in different layers according to actual needs. This embodiment does not make any limitations in this regard).

[0043] Refer to Figure 3 、 Figure 4 shown, the electrical component 4 is fixedly connected to the middle of the cylinder body 2 in the axial direction (as Figure 2 the arrow indicates the axial direction in the figure), and is electrically connected to the heating wire 3.

[0044] In this embodiment, by fixedly connecting the electrical component 4 to the middle of the axial direction of the cylinder body 2, the axial length of the cylinder body 2 is shortened, realizing the miniaturization of the heater. In some embodiments, compared with the prior art Figure 1 In the case where the length of the cylinder body 13 in the prior art is 40 mm, in this embodiment, the length of the cylinder body 2 can be shortened to 27 mm, which is beneficial to realizing the miniaturization of the heater.

[0045] In some embodiments of the present utility model, the cylinder body 2 is cylindrical. In some embodiments, the cylinder body 2 can also be set to be a cuboid shape with a hollow interior, and this embodiment does not make any limitations in this regard.

[0046] In the preferred embodiment of the present utility model, continue to refer to Figure 4 , the electrical component 4 includes a fuse 41 and a thermostat 42, and both the fuse 41 and the thermostat 42 are connected in series with the heating wire 3. When the temperature of the heating wire 3 is too high or the current is too large, the fuse 41 can be melted, so that the circuit is disconnected, preventing the temperature of the heating wire 3 from rising further, and improving the safety of the heater during use. The thermostat 42 is also called a temperature control switch, a temperature protector or a temperature controller. The thermostat 42 can physically deform inside the switch according to the temperature change of the working environment to achieve automatic conduction or disconnection, improving the safety of the heater during use. Technicians can select one or both of the fuse 41 or the thermostat 42 as the safety insurance of the heater according to needs. In Figure 3 , Figure 4 , the fuse 41 and the thermostat 42 together serve as the safety insurance measure of the heater, and the fuse 41, the thermostat 52 and the heating wire 3 can be connected in series in sequence. In addition, by arranging the fuse 41 and the thermostat 42 in the middle of the axial direction of the cylinder body 2, not only can the axial length of the heater be effectively reduced, but also the feedback speed of the fuse 41 and the thermostat 42 can be improved.

[0047] Furthermore, as shown in Figure 3 , Figure 5As shown in the figure, the cylinder body 2 has a groove 21 adapted to the outer shape of the electrical component 4, and the electrical component 4 is fixed by being embedded in the groove 21. Using the groove 21 to accommodate the electrical component 4 is beneficial to saving the occupied space of the electrical component 4 and realizing the miniaturization of the heater. In this embodiment, the shape and size of the groove 21 are not limited, and those skilled in the art can adaptively adjust the shape and size of the groove 21 according to the outer shape of the electrical component 4 used. For example, the thermostat is in a C shape, the groove 21 has a first groove portion 211 matching the outer contour of the fuse 41, the thermostat 42 and the fuse 41 are connected in series through a wire 43, the groove 21 also has a second groove portion 212 substantially in a C shape matching the outer contour of the thermostat 42 and a wire groove 213 for accommodating the wire 43. The arrangement of the wire groove 213 can regulate the laying path of the wire 43, and the wire 43 is embedded in the wire groove 213, which is convenient for the installation of subsequent components (such as the heat insulation cylinder 5).

[0048] Preferably, in order to improve the position stability of the thermostat 42, the heater further includes a pressing plate 2121. The pressing plate 2121 extends in the axial direction and covers the axial length of the thermostat 42. Two clamping grooves 2122 are provided on the surface of the cylinder body 2 that encloses to form the second groove portion 212. The two clamping grooves 2122 are located at both ends of the cylinder body 2 in the axial direction. The two ends of the pressing plate 2121 are respectively clamped in the two clamping grooves 2122, so that the pressing plate 2121 can press against the outer surface of the thermostat 42 to ensure the structural stability of the thermostat 42 and prevent the thermostat 42 from shifting.

[0049] In a preferred embodiment of the present invention, the electrical component 4 is a fuse 41, and the fuse 41 is adjacent to the inner side of the heating wire 3. By making the fuse 41 adjacent to the inner side of the heating wire 3, the fuse 41 is closer to the heating wire 3, and the heat sensing performance is better. When the temperature is too high or the current is too large, the fuse 41 can quickly respond and disconnect to ensure the safety of the circuit.

[0050] Such as Figure 2 、 Figure 6 As shown in the figure, in a preferred embodiment of the present invention, it further includes a heat insulation cylinder 5, and the heat insulation cylinder 5 is on the outer side of the cylinder body 2. The heat insulation cylinder 5 is arranged between the heating wire 3 and the cylinder body 2, and can block the heat generated by the heating wire 3 from being transferred to the cylinder body 2, prevent the cylinder body 2 from deforming and being damaged under the high temperature of the heating wire 3, and is beneficial to extending the service life of the cylinder body 2, thereby ensuring the service life of the heater 3.

[0051] Preferably, a first opening 51 matching the shape and position of the electrical component 4 is formed in the heat insulation cylinder 5. The arrangement of the first opening 51 enables the groove 21 and the electrical component 4 in the groove 21 to communicate with the space outside the heat insulation cylinder 5, ensuring that the temperature environment where the electrical component 4 is located is basically the same as the temperature environment where the heating wire 3 is located. When the temperature of the heating wire 3 is too high, the electrical component 4 can detect the temperature anomaly in time and make a response, ensuring the use safety and reliability of the heater. Specifically, there are two first openings 51, corresponding to the positions of the fuse 41 and the thermostat 42 respectively.

[0052] More preferably, the electrical component 4 is integrally embedded in the groove 21, and the outer end of the electrical component 4 in the radial direction of the cylinder body 2 does not protrude from the outer surface of the cylinder body 2, so that the heat insulation cylinder 5 can be smoothly sleeved outside the cylinder body 2 during installation, reducing the installation difficulty and improving the installation convenience.

[0053] As Figure 2 、 Figure 7 shown, in the preferred embodiment of the present utility model, the heater further includes a plurality of heat insulation sheets 6 arranged at intervals in the circumferential direction of the cylinder body 2. The heat insulation sheets 6 extend in the radial direction of the cylinder body 2, the inner edge of the heat insulation sheets 6 is fixedly connected to the cylinder body 2, and the heating wire 3 is erected and wound around the outer edges of the plurality of heat insulation sheets 6.

[0054] In the above manner, the plurality of heat insulation sheets 6 extend in the radial direction of the cylinder body 2 and are fixedly connected to the cylinder body 2 to form an installation bracket for the heating wire 3. The plurality of heat insulation sheets 6 provide multiple support points, improving the position stability of the heating wire 3. The heating wire 3 is erected and wound around the outer edges of the plurality of heat insulation sheets 6, so that the heat insulation sheets 6 separate the heating wire 3 from the cylinder body 2, and further can block the heat generated by the heating wire 3 from being transmitted to the cylinder body 2, preventing the cylinder body 2 from being deformed and damaged under the high temperature of the heating wire 3, which is beneficial to extending the service life of the cylinder body 2. It should be noted that the number of the heat insulation sheets 6 can be set according to actual needs, and this embodiment does not limit this. Preferably, the outer end of the pressing plate 2121 in the radial direction of the cylinder body 2 does not protrude from the outer surface of the cylinder body 2, facilitating the installation of subsequent components (such as the heat insulation cylinder 5).

[0055] In the preferred embodiment of the present utility model, at least one heat insulation sheet 6 has a second opening 61. By providing the second opening 61 in the heat insulation sheet 6, it is beneficial to the heat transfer of the heat generated by the heating wire 3 in the adjacent areas on both sides of the heat insulation sheet 6. The plurality of heat insulation sheets 6 are all provided with the second opening 61, which is beneficial to the heat transfer in the circumferential direction of the cylinder body 2 (such as Figure 2Conduction occurs in the circumferential direction shown in [description], which is beneficial to improving the uniformity of the air temperature distribution among different heat insulation sheets 6. Further, the shape of the second opening 61 can be rectangular, circular, triangular, pentagonal, etc. The size of the second opening 61 can be adjusted according to actual needs. The number of second openings 61 on each heat insulation sheet 6 can be one or more. This embodiment does not limit the shape, size, and number of the second openings 61, and those skilled in the art can adjust them according to actual working conditions.

[0056] In a preferred embodiment of the present utility model, the outer edge of the heat insulation sheet 6 has a plurality of notches 62, and the heating wire 3 is embedded in the notches 62. The coiled heating wire 3 is embedded in a plurality of notches 62, so that the heating wires 3 in different layers are separated from each other, improving the heat dissipation capacity of the heating wire 3 and preventing local high temperature caused by the aggregation of the heating wire 3, ensuring the uniform heating of the heater. The setting of the notches 62 can also improve the installation stability of the heating wire 3. In this embodiment, the plurality of notches 62 are evenly distributed in the axial direction of the cylinder 2. In addition, the notches 62 can be rectangular notches or V-shaped notches, and this embodiment does not limit this.

[0057] By adopting the heater with the above structure, the axial length of the hair dryer provided in the embodiment of the present utility model can be shortened, which is beneficial to realizing the miniaturization of the hair dryer and meeting the needs of users.

[0058] The above are only the preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent replacements, and improvements made within the spirit and principle of the present utility model shall be included in the protection scope of the present utility model.

Claims

1. A heater, characterized in that: include: Cylinder; A heating wire is coiled on the outer side of the cylinder; An electrical component, fixedly connected to the middle portion of the cylinder in the axial direction and electrically connected to the heating wire; The electrical component is a fuse and / or a thermostat.

2. The heater according to claim 1, characterized in that The electrical component is a fuse, and the fuse is adjacent to the inner side of the heating wire.

3. The heater according to claim 1, characterized in that The cylinder has a groove matched with the shape of the electrical component, and the electrical component is embedded in the groove and fixed.

4. The heater according to claim 3, characterized in that It also includes a heat-insulating cylinder, which is located outside the cylinder.

5. The heater according to claim 4, characterized in that The heat-insulating cylinder is provided with a first opening portion which matches the shape and position of the electrical component.

6. The heater according to claim 1, characterized in that It also includes a plurality of heat insulation sheets arranged in a circumferential direction of the cylinder, the heat insulation sheets extend in a radial direction of the cylinder, the inner edges of the heat insulation sheets are fixedly connected to the cylinder, and the heating wires are mounted and coiled around the outer edges of the plurality of heat insulation sheets.

7. The heater according to claim 6, characterized in that At least one of the heat-insulating sheets has a second opening.

8. The heater according to claim 6, characterized in that The outer edge of the heat insulation sheet is provided with a plurality of notches, and the heating wires are embedded in the notches.

9. A hair dryer, characterized in that: A heater as claimed in any one of claims 1 to 8.

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