Hair drier capable of cooling magnet

Abstract

The air blower capable of cooling the magnet is provided with the hot air path, the heater is installed in the hot air path and heats air in the hot air path, the air path butt joint port used for being in butt joint with the air nozzle air path is formed in the front end of the hot air path, and the air blower is provided with the magnet used for magnetically sucking the air nozzle and further provided with the cooling air path parallel to the hot air path to cool the magnet. And an air outlet at the front end of the cooling air path and an air path butt-joint port at the front end of the hot air path are parallel on the air path. As the air outlet of the cooling air path and the air path butt joint port at the front end of the hot air path are parallel on the air path, after the air nozzle is installed, the air nozzle air path is in butt joint with the machine body hot air path through the air path butt joint port without changing the air outlet mode of the cooling air path, the cooling air path and the machine body hot air path keep parallel air outlet, and the cooling air path is not interfered by air pressure of the machine body hot air path; and air can be effectively discharged, so that a good heat dissipation effect on the magnet can be kept.

Description

Technical Field

[0001] This utility model relates to hair dryers, specifically to hair dryers that can cool magnets. Background Technology

[0002] The hair dryer consists of a body and a nozzle. The body has a main airflow path running forward and backward, while the nozzle has a guide airflow path running forward and backward. The front of the main airflow path has an airflow interface with a magnet attached. The nozzle is magnetically attached to this interface, and the nozzle's guide airflow connects to the main airflow path via the interface. A fan is installed at the rear of the main airflow path, and a heating element is installed at the front. In cold air mode, the main airflow path is a cold air path. The fan operates, generating cold air within the airflow path. This cold air enters the guide airflow path of the nozzle through the airflow interface and is then blown out of the nozzle. In hot air mode, the front of the main airflow path is a hot air path. The fan and heating element work together. The airflow generated by the fan is heated by the heating element, becoming hot air. This hot air enters the guide airflow path of the nozzle through the airflow interface and is then blown out of the nozzle. As the hot air passes through the airflow interface, some heat is inevitably transferred to the magnet, which is prone to demagnetization at high temperatures.

[0003] The applicant previously applied for a utility model patent (patent publication number CN220124145U) to protect a hair dryer capable of cooling magnets. This hair dryer has a cooling air path on its body to cool the magnets. The cooling air path has an air inlet between the fan and the heating element, and an air outlet at the front of the body. The air outlet connects to the air path interface of the body, which in turn connects to the outside. Part of the airflow generated by the fan enters the cooling air path through the air inlet, flows forward along the cooling air path past the magnet, carries away the magnet's heat, and is then blown out through the air outlet. When the nozzle is not installed, the air path interface is directly open to the outside, and the air inside the body's air path and the air from the cooling air path are directly discharged from the air path interface. However, after the air nozzle is installed, the air from the cooling air path and the air from the main air path of the machine enter the air nozzle together and are then discharged. Since the air force of the cooling air path is much smaller than that of the main air path of the machine, the heat dissipation air duct is difficult to effectively discharge air under the action of the air pressure of the main air path of the machine, which will reduce the heat dissipation effect on the magnet. Utility Model Content

[0004] The technical problem to be solved by this utility model is to provide a hair dryer that can cool the magnet. The cooling air path is the magnet of the magnetic nozzle. The cooling air path can still effectively output air after the nozzle is installed, so as to maintain a good heat dissipation effect on the magnet.

[0005] To solve the above-mentioned technical problems, the present invention provides a hair dryer that can cool magnets. It has a hot air path with a heater installed inside. The heater heats the air inside the hot air path. The front end of the hot air path has an air path interface for connecting to the nozzle air path. The hair dryer has a magnet for magnetically attracting the nozzle. It also has a cooling air path parallel to the hot air path to cool the magnet. The air outlet at the front end of the cooling air path is parallel to the air path interface at the front end of the hot air path.

[0006] Furthermore, the magnet is ring-shaped and surrounds the outside of the air duct interface, while the cooling air duct is a ring-shaped air duct that surrounds the outer periphery of the hot air duct.

[0007] Furthermore, magnets are installed in the cooling air duct.

[0008] Furthermore, the air duct interface is located at the front of the blower body, and the blower body has a mounting groove on the outside of the air duct interface. The groove faces forward and the air supply nozzle is inserted backward, with the magnet located inside the mounting groove.

[0009] Furthermore, the magnet is specifically located at the bottom of the mounting slot.

[0010] Furthermore, the cooling air outlet is specifically located on the outer wall of the mounting groove.

[0011] Furthermore, the mounting slot is an annular groove surrounding the air duct interface; there are multiple air outlets for heat dissipation air ducts, arranged around the outside of the air duct interface.

[0012] Furthermore, including the aforementioned nozzle, its airflow path is connected to the hot air path via the airflow path interface, and is parallel to the cooling air path; the rear end of the nozzle is inserted into the mounting groove and is magnetically attracted by a magnet.

[0013] Furthermore, the nozzle body extends rearward with a magnetic mounting part. The length of the magnetic mounting part is greater than the depth of the mounting groove. When it is inserted rearward into the mounting groove and magnetically attracted by the magnet, an exhaust channel is left between the rear end of the nozzle body and the front end of the unit. The cooling air outlet is connected to the outside through this exhaust channel.

[0014] Furthermore, the device includes a nozzle that is magnetically attached to the heater, and after installation, its airflow path is connected to the hot air path via an airflow path interface; a forward-blowing fan is provided behind the heater, and the cooling airflow path inlet is located between the heater and the fan.

[0015] Since the cooling air outlet and the air duct interface at the front end of the hot air duct are parallel on the air duct, after the nozzle is installed, the air duct of the nozzle will connect to the hot air duct of the body through the air duct interface without changing the air outlet mode of the cooling air duct. The cooling air duct and the hot air duct of the body will continue to air out in parallel. The cooling air duct will not be affected by the air pressure of the hot air duct of the body, and can effectively air out, thereby maintaining a good heat dissipation effect on the magnet. Attached Figure Description

[0016] Figure 1 This is a diagram of a hair dryer.

[0017] Figure 2 yes Figure 1 A magnified view of a portion of the image, showing a larger area. Figure 1 Part A.

[0018] Figure 3 A cross-sectional view of the top of the hair dryer.

[0019] Figure 4 yes Figure 3 A magnified view of a portion of the image, showing a larger area. Figure 3 Part B.

[0020] Figure 5 yes Figure 3 A magnified view of a portion of the image, showing a larger area. Figure 3 Part C.

[0021] Figure 6 This is a schematic diagram showing the cooling air path and the main air path running side by side.

[0022] Figure 7 This is a schematic diagram showing the magnet installed at the front end of the inner casing. Detailed Implementation

[0023] The present invention will be further described in detail below with reference to specific embodiments.

[0024] Hair dryer Figure 1 This includes the main body 1 and the nozzle 9, which needs to be installed on the front end 111 of the main body 1. The main body 1 is as follows... Figure 3 A main air duct 10 running in a front-to-back direction is provided, with its front end located at the front end 111 of the body 1 and having an air duct interface 101. A nozzle 9 has a front-to-back guiding air duct 90, which is installed at the air duct interface 101, and its guiding air duct 90 connects to the main air duct 10 of the body 1 via the air duct interface 101. A fan 2 is installed at the rear 105 of the main air duct 10, and a heating wire 3 is installed at the front 106. In cold air mode, the main air path 10 serves as the cold air path, and the fan 2 blows air forward, thereby generating cold air within the main air path 10. The cold air enters the air guide path 90 of the nozzle 9 from the air path interface 101 and then is blown out from the front end of the nozzle 9. In hot air mode, the front part 106 of the main air path 10 serves as the hot air path, and the fan 2 and the heating wire 3 work together. The heating wire 3 acts as a heater and is located within the hot air path, heating the air generated by the fan 2 into hot air. The hot air enters the air guide path 90 of the nozzle 9 from the air path interface 101 and then is blown out from the front end of the nozzle 9.

[0025] See body 1 Figure 3It includes inner and outer shells 15 and 16. The main air duct 10 is located inside the inner shell 15, and the outer shell 16 is fitted onto the outside of the inner shell 15. The rear part 169 of the outer shell 16 is fastened to the rear part 159 of the inner shell 15. See Figure 7 An annular magnet 4 is fitted around the outer periphery of the front end 150 of the inner housing 15, and the magnet 4 surrounds the outer side of the air duct interface 101; the inner housing 15 has a protruding rear positioning part 151, which is located behind the magnet 4. See Figure 2 The outer casing 16 has a front positioning part 161 protruding inward from the front end, and the front and rear positioning parts 161 and 151 are as follows: Figure 4 As shown, the annular magnet 4 is clamped from the front and rear to axially position the magnet 4. See Figure 4 , Figure 7 A positioning block 45 protrudes radially around the magnet 4, located inside the front end 160 of the outer shell 16, for radial positioning of the front end 160 of the outer shell 16. See Figure 2 An annular mounting groove 13 is formed between the front positioning part 161 of the outer shell 16 and the front end 150 of the inner shell 15, as shown in the figure. Figure 1 and Figure 2 The mounting groove 13 surrounds the outside of the air duct interface 101 with the groove opening 130 facing forward, and the magnet 4 is located at the bottom of the mounting groove 13. The nozzle body 91 is made of plastic, and an iron ring 92 is installed at its rear end, see Figure 4 The iron ring 92 extends backward from the nozzle body 91 and serves as a magnetic mounting part. It is inserted into the mounting groove 13 and magnetically attracted by the magnet 4. The nozzle 9 is thus mounted on the front end 111 of the body 1.

[0026] See Figure 4 Because magnet 4 is close to the air duct interface 101, in hot air mode, the hot air inevitably transfers some heat to magnet 4 as it passes through the air duct interface 101, causing magnet 4 to heat up. To prevent magnet 4 from demagnetizing due to excessive temperature, this hair dryer has a cooling air duct 12 between the inner and outer shells 15 and 16, see... Figure 6 The cooling air passage 12 is ring-shaped, surrounding the outer periphery of the front part 106 of the main air passage 10, and is parallel to the front part 106 of the main air passage 10, and also with the air nozzle 9 (see Figure 1 The air guide path 90 (see) Figure 1 (The magnets are arranged side-by-side, with magnet 4 located in cooling air path 12, which cools magnet 4. See...) Figure 3 and Figure 5 The inner casing 15 has an opening 121 that leads from the middle 107 of the main air passage 10 to the cooling air passage 12. This opening 121 is located between the fan 2 and the heating wire 3, serving as the rear air inlet 121 of the cooling air passage 12. Part of the airflow generated when the fan 2 is working enters the cooling air passage 12 through the air inlet 121. See... Figure 2The inner wall of the front positioning part 161 of the outer casing 16 serves as the outer wall 131 of the mounting groove 13. Multiple strip-shaped ventilation grooves 122 are formed on it in a front-to-back direction. These ventilation grooves 122 are arranged around the outside of the air duct interface 101 and lead rearward to the cooling air duct 12, serving as the front air outlet 122 of the cooling air duct 12. They are parallel to the air duct interface 101 at the front of the main air duct 10 on the air duct. See Figure 4 The airflow within the cooling air path 12 flows forward along the cooling air path 12, passing over the magnet 4, carrying away the heat from the magnet 4, and then exiting from the air outlet 122, thus cooling the magnet 4. After the nozzle 9 is installed, the airflow 90 of the nozzle 9 connects to the main air path 10 of the body 1 via the air path interface 101, which does not change the air outlet mode of the cooling air path 12. The cooling air path 12 and the main air path 10 of the body 1 maintain parallel airflow. The cooling air path 12 is not affected by the air pressure of the main air path 10 of the body 1, and can effectively outlet air, maintaining a good heat dissipation effect on the magnet 4. The length of the iron ring 92 extending backward is greater than the depth of the mounting groove 13 of the body 1. Therefore, when the iron ring 92 is inserted into the mounting groove 13 backward and attracted by the magnet 4, an exhaust channel 14 is left between the rear end 911 of the nozzle body 91 and the front end 111 of the body 1. The air outlet 122 of the cooling air path 12 is connected to the outside through this exhaust channel 14. The airflow discharged from the air outlet 122 is discharged to the outside through the exhaust channel 14. It can be seen that the installation of the nozzle 9 will not affect the airflow of the cooling air path 12.

[0027] See Figure 7 In this embodiment, the magnet 4 is ring-shaped, including a rear support 41, a central magnet body 42, and a front protective shell 43. Other embodiments may be modified to include only the magnet body 42 or use other shapes such as block magnets.

[0028] This embodiment is shown in Figure 4 The length of the iron ring 92 extending backward is greater than the depth of the mounting groove 13 of the body 1. Other embodiments can be modified so that the length of the iron ring 92 extending backward is equal to the depth of the mounting groove 13 of the body 1. The diameter of the rear end of the nozzle body 91 is the same as the outer diameter of the mounting groove 13. After the nozzle 9 is installed, it will not block the air outlet 122 of the cooling air path 12. The cooling air path 12 exits from the air outlet 122, so the nozzle 9 will not affect the air outlet of the cooling air path 12.

[0029] This embodiment is shown in Figure 3 The air inlet 121 of the cooling air path 12 is located between the heater 3 and the fan 2. Part of the airflow generated by the fan 2 in the cooling air path 12 is used for cooling by the magnet 4. In other embodiments, the air inlet 121 of the cooling air path 12 can be changed to be located at the rear end of the body 1, and the airflow generated by the outside natural wind in the cooling air path 12 is used for cooling by the magnet 4.

[0030] The above description is merely an embodiment of the present invention and does not limit the scope of patent protection. Any non-substantial changes or substitutions made by those skilled in the art based on the present invention will still fall within the scope of patent protection.

Claims

1. A hair dryer capable of cooling magnets, comprising a hot air path, a heater installed within the hot air path to heat the air within the hot air path, an air path interface at the front end of the hot air path for connecting to a nozzle air path, a magnet for magnetically attracting the nozzle, and a cooling air path parallel to the hot air path for cooling the magnets, characterized in that: The air outlet at the front end of the cooling air path and the air path interface at the front end of the hot air path are parallel to each other on the air path.

2. The hair dryer according to claim 1, characterized in that: The magnet is ring-shaped and surrounds the outside of the air duct interface. The cooling air duct is a ring-shaped air duct that surrounds the outer periphery of the hot air duct.

3. The hair dryer according to claim 1, characterized in that: The magnet is installed in the cooling air duct.

4. The hair dryer according to claim 1, characterized in that: The air duct interface is located at the front of the blower body. The blower body has a mounting groove on the outside of the air duct interface. The groove faces forward and the air supply nozzle is inserted backward. The magnet is located in the mounting groove.

5. The hair dryer according to claim 4, characterized in that: The magnet is specifically located at the bottom of the mounting slot.

6. The hair dryer according to claim 5, characterized in that: The cooling air outlet is specifically located on the outer wall of the mounting groove.

7. The hair dryer according to claim 6, characterized in that: The mounting slot is a ring-shaped slot surrounding the air duct interface; there are multiple air outlets for heat dissipation air ducts, arranged around the outside of the air duct interface.

8. The hair dryer according to claim 4, characterized in that: The included air nozzle has its airflow path connected to the hot air path via the airflow path interface, and is parallel to the cooling air path; the rear end of the air nozzle is inserted into the mounting groove and is magnetically attracted by a magnet.

9. The hair dryer according to claim 8, characterized in that: The nozzle body extends rearward with a magnetic mounting part. The length of the magnetic mounting part is greater than the depth of the mounting groove. When it is inserted into the mounting groove and attracted by the magnet, an exhaust channel is left between the rear end of the nozzle body and the front end of the unit. The cooling air outlet is connected to the outside through this exhaust channel.

10. The hair dryer according to any one of claims 1 to 7, characterized in that: The device includes a nozzle that is magnetically attached to the heater. After installation, the nozzle's airflow path is connected to the hot air path via an airflow path interface. A forward-blowing fan is located behind the heater, and the cooling airflow path inlet is located between the heater and the fan.

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