A temperature controller rear-mounted hair dryer

Abstract

The application relates to the hair dryer technical field and provides a hair dryer with a rear-mounted temperature controller, which comprises a hair blowing head, a heating assembly and a temperature controller arranged in the hair blowing head; the heating assembly comprises a heating wire support and a hollow heat insulation cover, the first heating wire is wound around the outer periphery of the heating wire support, and the hollow heat insulation cover is arranged on the outer periphery of the first heating wire; the temperature controller is arranged in the hollow heat insulation cover and located at one end of the heating assembly far from an air outlet, and the side of the temperature controller far from the air outlet is provided with the second heating wire; a handle is arranged in the handle and is connected with the hair blowing head in communication, and the air making assembly is used for supplying air to the hair blowing head. According to the application, the temperature controller is arranged at one end of the heating assembly far from the air outlet, and the second heating wire is arranged at the side of the temperature controller far from the air outlet, so that the reaction sensitivity of the temperature controller is ensured, the interference of the temperature controller on the airflow in the hair blowing head is reduced, and the airflow noise is reduced.

Description

Technical Field

[0001] This application relates to the field of hair dryer technology, and in particular to a hair dryer with a rear-mounted thermostat. Background Technology

[0002] After washing their hair, whether it's naturally drying or using a low-speed hairdryer, it takes a lot of time to dry it before bed or when going out. High-speed hairdryers make life much easier, shortening the time it takes to dry hair. Currently, to produce air at different temperatures, high-speed hairdryers typically consist of a heating element and a small fan. If only the fan is running and the heating element is not working, the high-speed hairdryer can only blow cold air. However, when the heating element and the fan are working simultaneously, the heating element assembly generates heat, and the air blown by the fan is turned into hot air after passing through the heating element.

[0003] Currently, the heating element assembly in high-speed hair dryers typically consists of an inner shell and several support plates inserted outside the inner shell, forming a support frame. The heating wire is then arranged circumferentially around the outside of the support frame. To ensure the safety of high-speed hair dryers, a thermostat is also required inside the blower head. However, the thermostat in most high-speed hair dryers is currently located at the end of the heating element assembly near the air outlet. This has two main drawbacks: firstly, the thermostat interferes with the airflow, causing turbulence as it passes over the thermostat, affecting the airflow velocity after exiting the outlet, and increasing airflow noise; secondly, the thermostat is visible from the air outlet, affecting the overall aesthetics of the hair dryer and reducing the user experience. Utility Model Content

[0004] To address the aforementioned problems, this application provides a hair dryer with a rear-mounted thermostat. This design is ingenious and simple in structure. By placing the thermostat at the end of the heating element furthest from the air outlet and placing the second heating wire on the side of the thermostat furthest from the air outlet, this design ensures the thermostat's responsiveness while reducing its interference with the airflow within the hair dryer head and lowering airflow noise. The technical solution adopted in this application is as follows:

[0005] A hair dryer with a rear-mounted thermostat, comprising:

[0006] A hair dryer head, wherein a heating element and a temperature controller are provided inside the hair dryer head; the heating element includes a heating wire support and a hollow heat insulation cover, wherein a first heating wire is wound around the outer periphery of the heating wire support, and the hollow heat insulation cover covers the outer periphery of the first heating wire; the temperature controller is located inside the hollow heat insulation cover and at the end of the heating element away from the air outlet, and a second heating wire is provided on the side of the temperature controller away from the air outlet; a handle, wherein a wind-generating component is provided inside the handle, the handle is connected to the hair dryer head, and the wind-generating component is used to supply air to the hair dryer head.

[0007] By placing the thermostat at the end of the heating element furthest from the air outlet and the second heating wire on the side of the thermostat furthest from the air outlet, the thermostat's responsiveness is ensured while its interference with the airflow inside the hair dryer is reduced, thus lowering airflow noise. Placing the second heating wire on the side of the thermostat furthest from the air outlet ensures the thermostat is in an effective temperature-measuring environment, preventing it from malfunctioning. Furthermore, placing the thermostat at the end of the heating element furthest from the air outlet prevents it from being visible from the air outlet, improving the overall aesthetics of the hair dryer.

[0008] In some embodiments, the blower head is also provided with a fuse, which is connected in series with the temperature controller.

[0009] By incorporating a fuse, the fuse can break the circuit when the current is too high or the temperature is too high. It can also function when the temperature controller fails or a short circuit occurs. The combination of the fuse and the temperature controller provides double protection for the hair dryer, which is a redundant design.

[0010] In some embodiments, the fuse and the thermostat are located at the same end of the heating element, and the fuse and the thermostat are arranged adjacent to each other.

[0011] By placing the fuse and the thermostat next to each other, the fuse and the thermostat can be directly connected, saving the wiring process between the fuse and the thermostat.

[0012] In some embodiments, one end of the fuse is riveted to one end of the thermostat.

[0013] The thermostat and fuse are connected by riveting. Riveting serves two purposes: it provides an electrical connection and ensures a secure and stable connection, fixing the fuse and thermostat together and improving their overall integrity. This reduces the risk of vibration during blower operation. Furthermore, riveting the fuse and thermostat does not require high-temperature conditions, resulting in low installation requirements, low installation costs, and quick installation.

[0014] In some embodiments, the thermostat is positioned away from the air inlet of the blower head.

[0015] By setting the thermostat away from the air inlet of the blower head, the thermostat can be prevented from obstructing the airflow at the air inlet of the blower head, thereby avoiding affecting the airflow speed and generating airflow noise.

[0016] In some implementations, the thermostat is a snap-action thermostat.

[0017] By adopting a snap-action thermostat, the advantages of snap-action thermostats—simple structure, stable performance, durability, and resistance to damage—are utilized, thereby improving the user experience.

[0018] In some embodiments, the heating wire support is provided with a receiving cavity, and a negative ion generator is provided in the receiving cavity.

[0019] By placing the negative ion generator within the housing cavity, the space occupied by the heating element is fully utilized, reducing the space it occupies outside the heating element and improving the space utilization rate of the hair dryer head. This allows for a smaller size of the hair dryer head, achieving the goal of miniaturization. Furthermore, the negative ion generator allows for hair care using the negative ions it produces, enhancing the user experience.

[0020] In some embodiments, the hollow heat insulation cover is a mica sheet.

[0021] The hollow heat insulation cover is made of mica sheets, which are readily available on the market, have low procurement costs, and are lightweight, which can reduce the production cost and weight of the hair dryer.

[0022] In some embodiments, the first heating wire is wavy.

[0023] By designing the first heating wire as wavy, the effective length of the first heating wire wound on the heating bracket can be increased, thereby ensuring the heating power of the first heating wire and the efficiency of heat exchange between the first heating wire and the airflow in a limited space.

[0024] In some embodiments, the blower head includes an outer shell and an inner shell, with a heat insulation layer between the outer shell and the inner shell, and the heating element is disposed in the inner shell.

[0025] By adding an insulation layer, heat loss in the hair dryer can be reduced, heat utilization can be improved, and the temperature of the hair dryer casing can be lowered, reducing the risk of burns to users.

[0026] The hair dryer with a rear-mounted temperature controller provided in this application has at least one of the following beneficial effects:

[0027] 1. This application provides a rear-mounted thermostat hair dryer. By placing the thermostat at the end of the heating element away from the air outlet and placing the second heating wire on the side of the thermostat away from the air outlet, the thermostat's responsiveness is ensured while reducing interference with the airflow inside the hair dryer head, thus lowering airflow noise. Placing the second heating wire on the side of the thermostat away from the air outlet ensures the thermostat is in an effective temperature measurement environment, preventing it from malfunctioning. Furthermore, placing the thermostat at the end of the heating element away from the air outlet avoids it being visible from the air outlet, improving the overall aesthetics of the hair dryer.

[0028] 2. The hair dryer with a rear-mounted thermostat provided in this application has a fuse that can break the circuit when the current is too high or the temperature is too high. It can also function when the thermostat fails or a short circuit occurs. The fuse and the thermostat can provide double protection for the hair dryer, which is a redundant design.

[0029] 3. The hairdryer with a rear-mounted thermostat provided in this application allows for direct connection between the fuse and the thermostat by placing the fuse and the thermostat adjacent to each other, thus saving the wiring process between the fuse and the thermostat.

[0030] 4. This application provides a rear-mounted thermostat hair dryer that connects the thermostat and fuse via riveting. Riveting serves two purposes: it provides an electrical connection and ensures a secure and stable connection, allowing the fuse and thermostat to be firmly fixed together. This improves the overall integrity of the fuse and thermostat and reduces the risk of vibration during hair dryer operation. Furthermore, the riveting of the fuse and thermostat does not require high-temperature conditions, resulting in low installation requirements, low installation costs, and quick installation.

[0031] 5. The present application provides a rear-mounted thermostat hair dryer, which avoids obstructing the airflow at the air inlet of the hair dryer by setting the thermostat away from the air inlet of the hair dryer, thereby avoiding affecting the airflow speed and generating airflow noise.

[0032] 6. The hair dryer with a rear-mounted thermostat provided in this application utilizes a snap-action thermostat, which takes advantage of the advantages of snap-action thermostats, such as simple structure, stable performance, durability, and resistance to damage, thereby improving the user experience.

[0033] 7. The hair dryer with a rear-mounted temperature controller provided in this application, by placing the negative ion generator in the receiving cavity, can make full use of the space of the heating bracket, reduce the space occupied by the heating bracket, improve the space utilization rate of the hair dryer head, and enable the hair dryer head to be reduced in size, thereby achieving the purpose of miniaturization design. In addition, by setting up a negative ion generator, the negative ions generated by the negative ion generator can be used to care for the hair, improving the user experience.

[0034] 8. The present application provides a hair dryer with a rear-mounted temperature controller. The hollow heat insulation cover is made of mica sheet. Mica sheet is easy to obtain on the market, has low procurement cost, and is lightweight, which can reduce the production cost and weight of the hair dryer.

[0035] 9. The present application provides a hair dryer with a rear-mounted thermostat. By designing the first heating wire in a wavy shape, the effective length of the first heating wire wound on the heating bracket can be increased, thereby ensuring the heating power of the first heating wire and the efficiency of heat exchange between the first heating wire and the airflow in a limited space.

[0036] 10. The present application provides a hair dryer with a rear-mounted thermostat. By setting a heat insulation layer, it can reduce heat loss in the hair dryer head, improve the utilization rate of heat, and at the same time reduce the temperature of the outer shell of the hair dryer head, thereby reducing the risk of users being burned. Attached Figure Description

[0037] The preferred embodiments will be described below in a clear and easy-to-understand manner, with reference to the accompanying drawings, to further explain the above-mentioned characteristics, technical features, advantages, and implementation methods of a hair dryer with a rear-mounted thermostat:

[0038] Figure 1 This is a schematic diagram showing the blower head cut in half from the top.

[0039] Figure 2 This is a schematic diagram showing the blower head cut across the back.

[0040] Figure 3 This is a schematic diagram of the structure of the heating component in this application;

[0041] Figure 4 This is a schematic diagram of the structure of the heating bracket in this application;

[0042] Figure 5 This is an overall schematic diagram of an embodiment of this application;

[0043] Figure 6 This is an overall schematic diagram of the blower head in this application.

[0044] Explanation of icon numbers:

[0045] 1. Hair dryer head, 2. Heating wire bracket, 3. Hollow heat insulation cover, 4. Handle, 5. Air outlet, 6. Air inlet, 7. Thermostat, 8. Fuse, 9. Receiving cavity, 10. Outer shell, 11. Inner shell. Detailed Implementation

[0046] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the specific implementation methods of this application will be described below with reference to the accompanying drawings. Obviously, the accompanying drawings described below are only some embodiments of this application. For those skilled in the art, other drawings and other implementation methods can be obtained based on these drawings without creative effort.

[0047] To keep the drawings concise, each drawing only schematically shows the parts relevant to this application, and they do not represent the actual structure of the product. Furthermore, for ease of understanding, in some drawings, only one of the components with the same structure or function is schematically shown, or only one is labeled. In this document, "one" not only means "only one," but can also mean "more than one."

[0048] It should also be further understood that the term “and / or” as used in this application specification and the appended claims means any combination of one or more of the associated listed items and all possible combinations, and includes such combinations.

[0049] In this document, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0050] Furthermore, in the description of this application, the terms "first," "second," etc., are used only to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0051] refer to Figures 1-5 This application provides a hair dryer with a rear-mounted thermostat, comprising: a hair dryer head 1 and a handle 4. The hair dryer head 1 is provided with a heating element and a thermostat 7. The heating element includes a heating wire support 2 and a hollow heat insulation cover 3. A first heating wire (not shown) is wound around the outer periphery of the heating wire support 2, and the hollow heat insulation cover 3 covers the outer periphery of the first heating wire. The thermostat 7 is disposed inside the hollow heat insulation cover 3 and is located at the end of the heating element away from the air outlet 5. A second heating wire (not shown) is disposed on the side of the thermostat 7 away from the air outlet 5. The handle 4 is provided with a wind-generating component (not shown), and the handle 4 is connected to the hair dryer head 1. The wind-generating component is used to supply air to the hair dryer head 1.

[0052] Specifically, the air-generating component inside the handle 4 includes a motor and an impeller, and the motor is preferably a brushless high-speed motor. In one embodiment, the tail end of the handle 4 is the air inlet of the overall hair dryer. After the airflow enters the handle 4 from the tail end, it is guided into the air inlet 6 of the blower head 1 along the airflow channel inside the handle 4. After entering the blower head 1 from the air inlet 6, the airflow is heated by the heating element and finally blown out from the air outlet 5 of the blower head 1.

[0053] It should be noted that the hollow heat insulation cover 3 is made of high-temperature resistant, insulating, and heat-insulating materials. The preferred material for the hollow heat insulation cover 3 is mica sheet. In other embodiments, the hollow heat insulation cover 3 can also be made of porous ceramic or ceramic-based heat-insulating materials. The thermostat 7 is preferably a snap-action thermostat 7. Snap-action thermostat 7 has a simple structure, stable performance, is durable, and is not easily damaged.

[0054] Understandably, by placing the thermostat 7 at the end of the heating element furthest from the air outlet 5 and placing the second heating wire on the side of the thermostat 7 furthest from the air outlet 5, the thermostat 7's responsiveness is ensured while its interference with the airflow inside the blower head 1 is reduced, thus lowering airflow noise. Placing the second heating wire on the side of the thermostat 7 furthest from the air outlet 5 ensures the thermostat 7 is in an effective temperature-measuring environment, preventing it from malfunctioning. Furthermore, placing the thermostat 7 at the end of the heating element furthest from the air outlet 5 avoids it being visible from the air outlet 5, improving the overall aesthetics of the hair dryer.

[0055] refer to Figures 1-4 In one embodiment, the blower head 1 is also equipped with a fuse 8, which is connected in series with the temperature controller 7. It should be noted that by setting up the fuse 8, the fuse 8 can break the circuit when the current is too high or the temperature is too high, and it can also play a role when the temperature controller 7 fails or a short circuit occurs. The fuse 8 combined with the temperature controller 7 can provide double protection for the blower, which is a redundant design.

[0056] Specifically, the fuse 8 and the thermostat 7 are located at the same end of the heating element and are arranged adjacent to each other. In other embodiments, the fuse 8 is located at the other end of the heating element, that is, the fuse 8 and the thermostat 7 are located at different ends of the heating element. It can be understood that by placing the fuse 8 and the thermostat 7 at the same end of the heating element and arranging them adjacent to each other, the fuse 8 and the thermostat 7 can be directly connected, saving the wiring process between the fuse 8 and the thermostat 7.

[0057] It is understandable that when the fuse 8 and the thermostat 7 are located on the same end of the heating element and are adjacent to each other, one end of the fuse 8 and one end of the thermostat 7 are connected by riveting. Riveting serves two purposes: firstly, it provides an electrical connection; secondly, it ensures a strong and stable connection, allowing the fuse 8 and thermostat 7 to be fixed together, improving their overall integrity and reducing the risk of vibration during operation of the blower. Furthermore, riveting the fuse 8 and thermostat 7 does not require high-temperature conditions, resulting in low installation requirements, low installation costs, and quick installation. In other embodiments, the fuse 8 and thermostat 7 can also be connected by welding.

[0058] refer to Figures 1-3 , Figure 6 In one embodiment, the thermostat 7 is positioned away from the air inlet 6 of the blower head 1. By positioning the thermostat 7 away from the air inlet 6 of the blower head 1, the thermostat 7 can be prevented from obstructing the airflow at the air inlet 6 of the blower head 1, thereby avoiding affecting the airflow velocity and generating airflow noise.

[0059] refer to Figures 2-4 In one embodiment, the heating wire support 2 has a receiving cavity 9, in which a negative ion generator (not shown) is installed. It is readily understood that by placing the negative ion generator in the receiving cavity 9, the space of the heating support can be fully utilized, reducing the space occupied outside the heating support, thus improving the space utilization rate of the hair dryer head 1 and enabling the hair dryer head 1 to be smaller in size, thereby achieving the goal of miniaturization. Furthermore, by setting up the negative ion generator, the negative ions generated by the generator can be used to care for the hair, improving the user experience.

[0060] It is worth noting that the first heating wire in this application is preferably wavy. By designing the first heating wire as wavy, the effective length of the first heating wire wound on the heating support can be increased, thereby ensuring the heating power of the first heating wire and the efficiency of heat exchange between the first heating wire and the airflow in a limited space.

[0061] refer to Figure 1 , Figure 2 In one embodiment, the hair dryer head 1 includes an outer shell 10 and an inner shell 11, with a heat insulation layer between the outer shell 10 and the inner shell 11. The heating element is disposed in the inner shell 11. By providing the heat insulation layer, heat loss in the hair dryer head 1 can be reduced, improving heat utilization efficiency. Simultaneously, the temperature of the outer shell 10 of the hair dryer head 1 can be lowered, reducing the risk of burns to the user. Specifically, the heat insulation layer can be porous vacuum silicone, heat-insulating aerogel, etc.

[0062] It should be noted that the above embodiments can be freely combined as needed. The above are merely preferred embodiments of this application. It should be pointed out that for those skilled in the art, several improvements and modifications can be made without departing from the principles of this application, and these improvements and modifications should also be considered within the scope of protection of this application.

Claims

1. A hair dryer with a rear-mounted temperature controller, characterized in that, include: A hair dryer head, wherein a heating element and a temperature controller are provided inside the hair dryer head; the heating element includes a heating wire support and a hollow heat insulation cover, wherein a first heating wire is wound around the outer periphery of the heating wire support, and the hollow heat insulation cover is provided over the outer periphery of the first heating wire; the temperature controller is disposed inside the hollow heat insulation cover and located at the end of the heating element away from the air outlet, and a second heating wire is provided on the side of the temperature controller away from the air outlet; The handle has a built-in air-generating component, and the handle is connected to the blower head. The air-generating component is used to supply air to the blower head.

2. A hair dryer with a rear-mounted temperature controller according to claim 1, characterized in that, The blower head is also equipped with a fuse, which is connected in series with the temperature controller.

3. A hair dryer with a rear-mounted temperature controller according to claim 2, characterized in that, The fuse and the thermostat are located at the same end of the heating element, and the fuse and the thermostat are arranged adjacent to each other.

4. A hair dryer with a rear-mounted temperature controller according to claim 3, characterized in that, One end of the fuse is riveted to one end of the thermostat.

5. A hair dryer with a rear-mounted temperature controller according to claim 1, characterized in that, The temperature controller is positioned away from the air inlet of the blower head.

6. A hair dryer with a rear-mounted temperature controller according to claim 1, characterized in that, The temperature controller is a snap-action temperature controller.

7. A hair dryer with a rear-mounted temperature controller according to claim 1, characterized in that, The heating wire support has a receiving cavity, and a negative ion generator is installed in the receiving cavity.

8. A hair dryer with a rear-mounted temperature controller according to any one of claims 1-7, characterized in that, The hollow heat insulation cover is made of mica sheet.

9. A hair dryer with a rear-mounted temperature controller according to claim 8, characterized in that, The first heating wire is wavy.

10. A hair dryer with a rear-mounted temperature controller according to claim 8, characterized in that, The blower head includes an outer shell and an inner shell, with a heat insulation layer between the outer shell and the inner shell, and the heating element is disposed in the inner shell.

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