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 opening 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] The invention relates to a hair dryer, in particular to a hair dryer capable of cooling a magnet. Background Art

[0002] The hair dryer includes a body and a nozzle. The body has a main air path in the front-to-back direction, and the nozzle has an air guide air path in the front-to-back direction. The front end of the main air path of the body has an air path docking interface and is installed with a magnet. The nozzle is magnetically attracted at the air path docking interface, and the air guide air path of the nozzle docks with the main air path of the body through the air path docking interface. A fan is installed at the rear of the main air path of the body, and a heating wire is installed at the front. In the cold air mode, the main air path is a cold air path, and the fan works to generate cold air in the air path of the body. The cold air enters the air guide air path of the nozzle from the air path docking interface and is then blown out from the nozzle; in the hot air mode, the front of the main air path is a hot air path, and the fan and the heating wire work together. The wind flow generated by the fan becomes hot air after being heated by the heating wire. The hot air enters the air guide air path of the nozzle from the air path docking interface and is then blown out from the nozzle. When the hot air passes through the air path docking interface, it is inevitable that part of the heat will be transferred to the magnet, and the magnet is easily demagnetized at high temperatures.

[0003] The applicant has applied for a utility model patent (patent publication number CN220124145U) to protect a hair dryer that can cool down magnets. This hair dryer has a cooling air path on the body to cool down the magnets. The cooling air path has an air inlet between the fan and the heating wire and an air outlet at the front end of the body. The air outlet is connected to the air path interface of the body and connected to the outside world through the air path interface. Part of the airflow generated by the fan enters the cooling air path from the air inlet, flows forward along the cooling air path, passes the magnet, takes away the heat of the magnet, and blows forward from the air outlet. When the nozzle is not installed, the air path interface is directly connected to the outside world, and the wind in the body air path and the wind in the cooling air path are directly discharged from the air path interface. However, after the wind nozzle is installed, the wind from the cooling wind path and the wind from the main wind path of the machine body enter the wind nozzle together and merge before being discharged. Since the wind force of the cooling wind path is much smaller than that of the main wind path of the machine body, under the action of the wind pressure of the main wind path of the machine body, the heat dissipation air duct is difficult to effectively discharge air, which will reduce the heat dissipation effect on the magnet. Summary of the invention

[0004] The technical problem to be solved by the present invention is to provide a hair dryer that can cool down magnets, wherein the cooling air path is a magnet cooling path of a magnetic suction air nozzle, and the cooling air path can still effectively discharge air after the air nozzle is installed, thereby maintaining a good heat dissipation effect on the magnet.

[0005] In order to solve the above technical problems, the hair dryer of the present invention can cool the magnet, which is provided with a hot air path, in which a heater is installed, the heater heats the air in the hot air path, and a wind path docking interface for docking with the wind path of the air nozzle is opened at the front end of the hot air path. The hair dryer is provided with a magnet for the magnetic suction nozzle, and is also provided with a cooling wind path parallel to the hot air path to cool the magnet, and the front end air outlet of the cooling wind path and the wind path docking interface at the front end of the hot air path are parallel on the wind path.

[0006] Furthermore, the magnet is annular and surrounds the outer side of the air path interface, and the cooling air path is an annular air path and surrounds the outer periphery of the hot air path.

[0007] Furthermore, the magnet is installed in the cooling air path.

[0008] Furthermore, the air passage interface is opened at the front end of the hair dryer body, and the hair dryer body has a mounting groove on the outer side of the air passage interface, with the groove facing forward for the air nozzle to be installed backward, and the magnet is arranged in the mounting groove.

[0009] Furthermore, the magnet is specifically arranged at the bottom of the installation groove.

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

[0011] Furthermore, the mounting groove is an annular groove surrounding the air duct interface; there are multiple heat dissipation air duct outlets, which are arranged around the outer side of the air duct interface.

[0012] Furthermore, it includes the air nozzle, whose air path is connected to the hot air path through the air path docking interface and is parallel to the cooling air path; the rear end of the air nozzle is installed backwards into the installation groove and is magnetically attracted by the magnet.

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

[0014] Furthermore, it includes the wind nozzle installed by magnet attraction, and after the wind nozzle is installed, its wind path is connected to the hot air path through the wind path docking interface; a fan blowing forward is provided behind the heater, and the air inlet of the cooling wind path is provided between the heater and the fan.

[0015] Since the air outlet of the cooling air path and the air path interface at the front end of the hot air path are arranged in parallel on the air path, after the air nozzle is installed, the air path of the air nozzle is connected to the hot air path of the machine body through the air path interface and will not change the air outlet method of the cooling air path. The cooling air path and the hot air path of the machine body keep airflow in parallel, and the cooling air path will not be affected by the wind pressure of the hot air path of the machine body, and can effectively discharge air, thereby maintaining a good heat dissipation effect on the magnet. BRIEF DESCRIPTION OF THE DRAWINGS

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

[0017] Figure 2 yes Figure 1 A partial enlarged picture of Figure 1 The A part.

[0018] Figure 3 Cutaway view of the top of a hair dryer.

[0019] Figure 4 yes Figure 3 A partial enlarged picture of Figure 3 Part B.

[0020] Figure 5 yes Figure 3 A partial enlarged picture of Figure 3 The C part.

[0021] Figure 6 It is a schematic diagram showing the cooling air path and the main air path in parallel.

[0022] Figure 7 Schematic diagram of the magnet installed at the front end of the inner shell. DETAILED DESCRIPTION

[0023] The present invention is further described in detail below in conjunction with specific implementation methods.

[0024] Hair dryer Figure 1 , including a body 1 and a nozzle 9 to be installed at the front end 111 of the body 1. The body 1 is as Figure 3 , a main air passage 10 in the front-to-back direction is opened, the front end of the main air passage 10 is located at the front end 111 of the machine body 1 and is opened with an air passage docking port 101; the air nozzle 9 is opened with an air guide air passage 90 in the front-to-back direction, the air nozzle 9 is installed at the air passage docking port 101, and its air guide air passage 90 is docked with the main air passage 10 of the machine body 1 through the air passage docking port 101. The fan 2 is installed at the rear part 105 of the main air passage 10, and the electric heating wire 3 is installed at the front part 106. In the cold air mode, the main air path 10 serves as the cold air path, and the fan 2 works to blow air forward to generate cold air in the main air path 10, and the cold air enters the air guide path 90 of the air nozzle 9 from the air path docking port 101 and is then blown out from the front end of the air nozzle 9; in the 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 serves as a heater and is located in the hot air path, which heats the air generated by the fan 2 into hot air, and the hot air enters the air guide path 90 of the air nozzle 9 from the air path docking port 101 and is then blown out from the front end of the air nozzle 9.

[0025] Body 1 Figure 3, including inner and outer shells 15 and 16, the main air path 10 is located in the inner shell 15, the outer shell 16 is sleeved on the outside of the inner shell 15, and the rear part 169 of the outer shell 16 is buckled with the rear part 159 of the inner shell 15. Figure 7 The outer peripheral side of the front end 150 of the inner shell 15 is sleeved with an annular magnet 4, and the magnet 4 surrounds the outer side of the air passage interface 101; the inner shell 15 protrudes with a rear positioning portion 151, and the rear positioning portion 151 is located behind the magnet 4. Figure 2 The front end of the outer shell 16 protrudes inwardly to form a front positioning portion 161, and the front and rear positioning portions 161 and 151 are as shown in FIG. Figure 4 As shown, the annular magnet 4 is clamped front and back to position the magnet 4 axially. Figure 4 , Figure 7 A positioning block 45 protrudes radially around the magnet 4 and is located inside the front end 160 of the outer shell 16 to radially position the front end 160 of the outer shell 16. Figure 2 The front positioning portion 161 of the outer shell 16 and the front end 150 of the inner shell 15 are left empty to form an annular mounting groove 13, see Figure 1 and Figure 2 The mounting groove 13 surrounds the outside of the air passage interface 101 and the groove 130 faces forward, and the magnet 4 is located at the bottom of the mounting groove 13. The air nozzle body 91 is made of plastic, and an iron ring 92 is installed at its rear end. Figure 4 The iron ring 92 extends backward from the nozzle body 91 as a magnetic mounting portion, and is inserted into the mounting groove 13 to be magnetically attracted by the magnet 4. The nozzle 9 is installed at the front end 111 of the body 1 in this way.

[0026] See Figure 4 Since the magnet 4 is close to the air passage interface 101, in the hot air mode, the hot air will inevitably transfer part of the heat to the magnet 4 when passing through the air passage interface 101, causing the magnet 4 to heat up. In order to prevent the magnet 4 from demagnetizing due to excessive temperature, the hair dryer is provided with a cooling air passage 12 between the inner and outer shells 15 and 16. Figure 6 The cooling air passage 12 is annular, surrounding the outer peripheral side of the front portion 106 of the main air passage 10, and is parallel to the front portion 106 of the main air passage 10, and is also connected to the air nozzle 9 (see Figure 1 ) of the wind guide path 90 (see Figure 1 ) are arranged in parallel, the magnet 4 is located in the cooling air path 12, and the cooling air path 12 cools the magnet 4. Figure 3 and Figure 5 The inner shell 15 is provided with an opening 121 extending from the middle 107 of the main air path 10 to the cooling air path 12. The opening 121 is located between the fan 2 and the electric heating wire 3 and serves as an air inlet 121 at the rear end of the cooling air path 12. Part of the airflow generated by the fan 2 when working enters the cooling air path 12 from the air inlet 121. Figure 2The inner wall of the front positioning portion 161 of the outer shell 16 serves as the outer groove wall 131 of the installation groove 13, on which a plurality of strip ventilation grooves 122 in the front and rear directions are opened. The plurality of ventilation grooves 122 are arranged around the outer side of the air passage interface 101 and respectively extend to the cooling air passage 12 backwards, serving as the front air outlet 122 of the cooling air passage 12, and are parallel to the air passage interface 101 at the front end of the main air passage 10 on the air passage. Figure 4 , the airflow in the cooling air path 12 flows forward along the cooling air path 12 and passes through the magnet 4, takes away the heat of the magnet 4 and is discharged from the air outlet 122, thereby cooling the magnet 4. After the air nozzle 9 is installed, the air guide air path 90 of the air nozzle 9 is connected to the main air path 10 of the body 1 through the air path docking 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 keep the airflow in parallel, and the cooling air path 12 will not be disturbed by the wind pressure of the main air path 10 of the body 1, and can effectively discharge air, and can maintain a good heat dissipation effect on the magnet 4. The length of the iron ring 92 of the air nozzle 9 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 is magnetically attracted by the magnet 4, an exhaust passage 14 is left between the rear end 911 of the air 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 passage 14, and the airflow discharged from the air outlet 122 is discharged to the outside through the exhaust passage 14. It can be seen that the air nozzle 9 will not affect the air outlet of the cooling air path 12 after installation.

[0027] See Figure 7 The magnet 4 of this embodiment is annular, including a bracket 41 at the rear, a magnet body 42 in the middle and a protective shell 43 at the front. Other embodiments may be modified to include only the magnet body 42 or use other shapes such as a block magnet.

[0028] This embodiment sees 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 as follows: the length of the iron ring 92 extending backward is equal to the depth of the mounting groove 13 of the body 1, the rear end diameter of the air nozzle body 91 is the same as the outer diameter of the mounting groove 13, and the air nozzle 9 will not block the air outlet 122 of the cooling air path 12 after installation. The cooling air path 12 discharges air from the air outlet 122, so the air nozzle 9 will not affect the air outlet of the cooling air path 12.

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

[0030] The above is only an implementation method of the invention, and does not limit the scope of patent protection. Those skilled in the art can make non-substantial changes or substitutions based on the invention, which still fall within the scope of patent protection.

Claims

1. A hair dryer capable of cooling magnets, which is provided with a hot air path, a heater is installed in the hot air path, the heater heats the air in the hot air path, and a wind path docking interface for docking with the wind path of the wind nozzle is opened at the front end of the hot air path. The hair dryer is provided with a magnet for magnetically attracting the wind nozzle, and is also provided with a cooling wind path parallel to the hot air path for cooling the magnets, and is characterized in that: The front air outlet of the cooling air path and the air path interface at the front end of the hot air path are arranged in parallel on the air path.

2. The hair dryer according to claim 1, characterized in that: The magnet is annular and surrounds the outer side of the air path interface, and the cooling air path is an annular air path and surrounds the outer peripheral side of the hot air path.

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

4. The hair dryer according to claim 1, characterized in that: The air passage interface is opened at the front end of the hair dryer body, and the hair dryer body is provided with a mounting groove outside the air passage interface, wherein the groove faces forward and the air nozzle is installed backward, and the magnet is arranged in the mounting groove.

5. The hair dryer according to claim 4, characterized in that: The magnet is specifically arranged at the bottom of the installation groove.

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

7. The hair dryer according to claim 6, characterized in that: The installation groove is an annular groove surrounding the air duct interface; there are multiple heat dissipation air duct air outlets, which are arranged around the outer side of the air duct interface.

8. The hair dryer according to claim 4, characterized in that: The wind nozzle comprises the wind path of which the wind path is connected to the hot wind path through the wind path connection interface and is arranged in parallel with the cooling wind path; the rear end of the wind nozzle is installed in the installation groove backwards and is magnetically attracted by a magnet.

9. The hair dryer according to claim 8, characterized in that: A magnetic mounting portion extends backward from the air nozzle body, the length of which is greater than the depth of the mounting groove. When it is inserted backward into the mounting groove and magnetically attracted by the magnet, an exhaust passage is left between the rear end of the air nozzle body and the front end of the machine body, and the cooling air outlet is connected to the outside world through this exhaust passage.

10. The hair dryer according to any one of claims 1 to 7, characterized in that: It comprises the wind nozzle installed by magnet attraction, after which its wind path is connected to the hot wind path through the wind path docking interface; a fan blowing forward is arranged behind the heater, and the air inlet of the cooling wind path is arranged between the heater and the fan.

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