Motor and blower

Abstract

The utility model relates to a motor and a hair drier, the hair drier is provided with the motor, the motor is provided with a ventilation hole in a mounting seat, and a winding interval between coil winding parts is configured to be communicated with the ventilation hole, so that air flow can flow along the winding interval in the rotating process of fan blades; therefore, the airflow can exchange heat with the coil in the winding interval in the flowing process, and the heat of the coil is effectively reduced. Therefore, on one hand, the influence of high temperature on the service life of the product can be avoided, the service life of the product is ensured, on the other hand, the problem of heat accumulation in the long-time working process of the product can be avoided, the product is prevented from entering a power reduction working mode, and the long-time non-working performance of the product is ensured; in addition, the use safety of the product can be improved to a certain extent.

Description

Technical Field

[0001] The utility model relates to the field of hair dryers, in particular to a motor and a hair dryer. Background Art

[0002] As a common appliance in personal care and daily life, the core function of a hair dryer is to generate airflow to dry hair or perform other air-drying operations. In the design and use of a hair dryer, the motor is the core component that drives the airflow, and its performance directly affects the overall performance and user experience of the hair dryer.

[0003] However, when the hair dryer is working, the coil will generate a lot of heat, but the airflow generated by the hair dryer often cannot flow through the assembly position of the coil, resulting in poor heat dissipation. A large amount of heat will accumulate at the corresponding position. The accumulation of heat not only affects the service life of the product, but may also cause the product to enter a protective working mode due to high temperature - such as a power reduction working mode, etc., resulting in long-term working performance deviations of the product, and also poses a threat to the user's safety. Utility Model Content

[0004] The technical problem to be solved by the utility model is to provide a motor and a hair dryer, which can solve the problems of short service life, performance degradation after long-term operation and low safety factor in use.

[0005] The first aspect of the utility model provides a motor, comprising:

[0006] A protective device, the protective device comprising a shell and a mounting seat, the mounting seat is arranged in the shell, and a ventilation hole is opened on the mounting seat;

[0007] A rotating device, the rotating device comprising a rotating shaft and a fan blade, the rotating shaft is rotatably arranged on the mounting seat, and the fan blade is arranged on the rotating shaft;

[0008] A stator device, the stator device comprising a stator inner core, the stator inner core being arranged in the housing, the stator inner core comprising a plurality of coil winding portions, each of the coil winding portions being arranged along a circumferential direction, and a winding interval being arranged between two adjacent coil winding portions;

[0009] When the fan blades rotate, the driving gas flows through the ventilation holes and the winding intervals.

[0010] Preferably, a plurality of ventilation holes are provided on the mounting seat, and the coil winding portions together form a plurality of winding intervals;

[0011] Wherein, each of the ventilation holes is aligned with each of the winding intervals; or

[0012] Some of the ventilation holes are aligned with the winding intervals; or

[0013] Any of the ventilation holes is staggered with respect to the winding interval.

[0014] Preferably, the mounting seat includes an inner ring portion, an outer ring portion and a plurality of connecting ribs, the outer ring portion is sleeved on the inner ring portion, each of the connecting ribs is located between the inner ring portion and the outer ring portion, and every two adjacent connecting ribs define the ventilation hole between the inner ring portion and the outer ring portion; the rotating shaft is rotatably arranged on the inner ring portion.

[0015] Preferably, each of the connecting ribs abuts against each of the coil winding portions in a one-to-one correspondence.

[0016] Preferably, the fan blade includes a shaft connecting portion and a plurality of blades, each of the blades is arranged on a peripheral outer side wall of the shaft connecting portion, and the shaft connecting portion is connected to the rotating shaft.

[0017] Preferably, the length extension direction of the rotating shaft is set as the first direction;

[0018] wherein the projection surface of the coupling portion in the first direction completely falls within the projection surface of the inner ring portion in the first direction; or

[0019] An edge of a projection surface of the coupling portion in the first direction and an edge of a projection surface of the inner ring portion in the first direction overlap with each other.

[0020] Preferably, the circumferential outer side wall of the connecting shaft portion is aligned with the circumferential outer side wall of the inner ring portion.

[0021] Preferably, the fan blade further comprises an air guide cone portion, the air guide cone portion is arranged on the shaft connecting portion, and the rotating shaft passes through the shaft connecting portion and the air guide cone portion;

[0022] The thickness of the wind guiding cone portion gradually decreases in a direction away from the rotating shaft, thereby forming a wind guiding inclined surface for guiding wind on the wind guiding cone portion.

[0023] Preferably, the protective device further comprises a plurality of air guide plates, each of which is respectively connected to the inner wall of the shell and the peripheral outer wall of the mounting seat; or

[0024] The stator device further comprises a plurality of connecting rods and a circuit board. The connecting rods are arranged on the coil winding parts one by one, and the connecting rods are connected to the circuit board.

[0025] The second aspect of the utility model further provides a hair dryer, which comprises a shell and the motor described in any one of the above technical solutions, and the shell is arranged in the shell.

[0026] The implementation of this utility model has the following beneficial effects:

[0027] The utility model relates to a motor and a hair dryer. The hair dryer is provided with a motor. On the motor, ventilation holes are opened on a mounting seat, and the winding intervals between the coil winding parts are configured to be connected to the ventilation holes, so that the airflow can flow along the winding intervals during the rotation of the fan blades, so that the airflow can exchange heat with the coils in the winding intervals during the flow, thereby effectively reducing the heat of the coils. In this way, on the one hand, the influence of high temperature on the service life of the product can be avoided, thereby ensuring the service life of the product. On the other hand, the problem of heat accumulation in the product during long-term operation can be avoided, thereby improving the working stability of the product, avoiding the product from entering a power reduction working mode, thereby ensuring the long-term working performance of the product, and further, improving the use safety of the product to a certain extent. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] The above and other objects, features and advantages of the present invention will become more apparent by describing in more detail exemplary embodiments of the present invention in conjunction with the accompanying drawings, wherein the same reference numerals generally represent the same components in the exemplary embodiments of the present invention.

[0029] Figure 1 It is a schematic diagram of the structure of the motor in some embodiments of the utility model;

[0030] Figure 2 yes Figure 1 A schematic diagram of the structure of the motor from another angle;

[0031] Figure 3 is a schematic diagram of the internal structure of a motor in some embodiments of the utility model;

[0032] Figure 4 yes Figure 3 An exploded view of the motor shown;

[0033] Figure 5 is an exploded view of a motor in some embodiments of the utility model;

[0034] Figure 6 From another perspective Figure 5 The structural diagram of the motor shown;

[0035] Figure 7 It is a schematic diagram of the structure of the protective device and the fan blades in some embodiments of the utility model;

[0036] Figure 8 It is a schematic diagram of the structure of the hair dryer in some embodiments of the utility model. DETAILED DESCRIPTION

[0037] The embodiments of the present invention will be described in more detail below with reference to the accompanying drawings. Although the embodiments of the present invention are shown in the accompanying drawings, it should be understood that the present invention can be implemented in various forms and should not be limited by the embodiments described herein. On the contrary, these embodiments are provided to make the present invention more thorough and complete, and to fully convey the scope of the present invention to those skilled in the art.

[0038] It should be understood that although the terms "first", "second", "third", etc. may be used to describe various information in the present invention, this information should not be limited to these terms. These terms are only used to distinguish the same type of information from each other. For example, without departing from the scope of the present invention, the first information may also be referred to as the second information, and similarly, the second information may also be referred to as the first information. Thus, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, the meaning of "multiple" is two or more, unless otherwise clearly and specifically defined.

[0039] In the description of the present invention, it should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0040] Unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection or an integrated connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in this utility model can be understood according to specific circumstances.

[0041] Figure 1 and Figure 2 The motor 10 in some embodiments of the utility model is shown, and the motor 10 can be powered on and work. The motor 10 includes a protective device 1, a rotating device 2 and a stator device 3. The protective device 1 serves to install and protect the remaining devices. The rotating device 2 is used to drive the gas flow to form an airflow during the rotation process. The stator device 3 is used to produce a magnetic field required for driving, so that the rotating device 2 can rotate in the magnetic field.

[0042] like Figures 3 to 6As shown, the protective device 1 includes a housing 11 and a mounting seat 12. The mounting seat 12 is disposed in the housing 11 and has a ventilation hole 121. Figures 1 to 6 As shown, the rotating device 2 includes a rotating shaft 21 and a fan blade 22 . The rotating shaft 21 is rotatably disposed on the mounting seat 12 , and the fan blade 22 is disposed on the rotating shaft 21 .

[0043] It can be understood that the housing 11 protects the other components and also serves to install the other components. The mounting seat 12 is used to support the rotation of the shaft 21, and the mounting seat 12 and the shaft 21 can be connected through a rotating bearing. The number of the ventilation holes 121 can be one or more, and the ventilation holes 121 are used to allow gas to pass through.

[0044] The rotating shaft 21 and the fan blades 22 are fixedly connected, and a corresponding magnetic element can be arranged on the rotating shaft 21. The magnetic element will receive a magnetic field force in the magnetic field of the stator device 3, and the rotating shaft 21 will be driven by the magnetic element to rotate, thereby driving the fan blades 22 to rotate. The fan blades 22 are used to drive the gas to flow in a predetermined direction to form an airflow during the rotation process.

[0045] It should be noted that the shape of the fan blades 22 can be flexibly set as long as it can generate the required airflow to achieve the purpose of cooling.

[0046] like Figures 2 to 6 As shown, the stator device 3 includes a stator core 31, which is arranged in the shell 11. The stator core 31 includes a plurality of coil winding portions 311, each coil winding portion 311 is arranged along the circumferential direction, and a winding gap 312 is arranged between two adjacent coil winding portions 311; when the fan blades 22 rotate, the driving gas flows through the ventilation holes 121 and the winding gaps 312.

[0047] It can be understood that the coil winding portion 311 is used for the coil 34 to be wound thereon, and during the winding process, the coil 34 will be exposed in the winding interval 312. When the airflow flows along the winding interval 312, it can exchange heat with the coil 34 to achieve the purpose of cooling; of course, the airflow passing through can also cool the stator inner core 31. The winding interval 312 between the coil winding portions 311 is connected to the ventilation hole 121.

[0048] During actual operation, the fan blades 22 rotate to drive the air to flow along the length extension direction of the rotating shaft 21, so that the gas flows in from the outside of the housing 11 and passes through the ventilation holes 121. Then, the airflow flows through the ventilation holes 121 and then enters the winding interval 312 accordingly, and the airflow flows along the winding interval 312. Therefore, the airflow will exchange heat with the coil 34 during the process of flowing in the winding interval 312, so as to achieve the purpose of cooling.

[0049] Specifically, the coil winding portions 311 are distributed in a circle around the rotating shaft 21 , and the coil winding portions 311 are connected in sequence.

[0050] like Figures 3 to 6 As shown, in some embodiments of the motor 10, a plurality of ventilation holes 121 are provided on the mounting base 12, and each coil winding portion 311 together forms a plurality of winding intervals 312;

[0051] Furthermore, the positional relationship between each ventilation hole 121 and each winding interval 312 has at least the following embodiments:

[0052] First, each ventilation hole 121 is aligned with each winding interval 312 one by one.

[0053] It can be understood that the number of ventilation holes 121 is equal to the number of winding intervals 312, so that the airflow will flow into a winding interval 312 after passing through each ventilation hole 121. In this way, the airflow is effectively guided, and the phenomenon of turbulent flow of the airflow between the ventilation holes 121 and the winding interval 312 is avoided, thereby ensuring the flow rate of the airflow in each winding interval 312, and further improving the heat dissipation effect.

[0054] Second, some of the ventilation holes 121 are aligned with the winding intervals 312 .

[0055] It can be understood that in this type of embodiment, the purpose of allowing airflow to enter the housing 11 and pass through the ventilation holes 121, and further allowing the airflow to enter the winding interval 312 can also be achieved. The purpose of cooling the stator core 31 and the coil can also be achieved.

[0056] Thirdly, any ventilation hole 121 is staggered with the winding interval 312 .

[0057] It can be understood that in this type of embodiment, after the airflow passes through the ventilation hole 121, since the airflow cannot flow directly in a straight line and enter each winding interval 312, the obstructed airflow will form turbulence before penetrating the stator core. The turbulent fluid achieves flow deceleration to a certain extent, so that the airflow can be redistributed to the corresponding winding intervals 312, so that the airflow flow rate flowing into each winding interval 312 is as equal as possible, thereby ensuring uniform heat dissipation and avoiding local heat accumulation.

[0058] like Figures 2 to 6As shown, in some embodiments of the motor 10, the mounting seat 12 includes an inner ring portion 122, an outer ring portion 123 and a plurality of connecting ribs 124, the outer ring portion 123 is sleeved on the inner ring portion 122, each connecting rib 124 is located between the inner ring portion 122 and the outer ring portion 123, and every two adjacent connecting ribs 124 define a ventilation hole 121 between the inner ring portion 122 and the outer ring portion 123; the rotating shaft 21 is rotatably disposed on the inner ring portion 122.

[0059] It can be understood that the inner ring portion 122 is used to support the rotation of the rotating shaft 21. The outer ring portion 123 is cylindrical and is used to install the stator inner core 31. The connecting ribs 124 are used to fix the relative positions of the outer ring portion 123 and the inner ring portion 122.

[0060] It should be noted that the inner ring portion 122 and the outer ring portion 123 are arranged in a coaxial manner, that is, the central axes of the two coincide with each other.

[0061] Furthermore, each connecting rib 124 is evenly distributed along the circumference of the side wall of the inner ring portion 122. In this way, the specifications of each ventilation hole 121 defined by the evenly distributed connecting ribs 124 will also be the same, so that the airflow passing through each ventilation hole 121 is as equal as possible, and then the airflow passing through each winding interval 312 is also as equal as possible, ensuring that the heat dissipation effect in each winding interval 312 is as equal as possible, avoiding the problem of excessive local heat accumulation due to insufficient local heat dissipation, and improving the heat dissipation uniformity of the product.

[0062] like Figure 3 As shown, in some embodiments of the motor 10 , each connecting rib 124 abuts against each coil winding portion 311 in a one-to-one correspondence.

[0063] It can be understood that configuring the connecting rib 124 to correspond to the support on the winding portion 311 can, on the one hand, guide the flow of airflow, avoid turbulent flow of airflow, and ensure the heat dissipation effect; on the other hand, it can also make the two components fit more closely and improve the compactness of the product.

[0064] It should be noted that, in some embodiments, the connecting rib 124 may be configured to support the coil winding portion 311 at only a portion thereof, thereby providing the coil 34 with the space required for winding.

[0065] like Figures 1 to 6 As shown, in some embodiments of the motor 10 , the fan blade 22 includes a shaft connecting portion 221 and a plurality of blades 222 , each blade 222 is disposed on the peripheral outer wall of the shaft connecting portion 221 , and the shaft connecting portion 221 is connected to the rotating shaft 21 .

[0066] It can be understood that the shaft connection portion 221 is used to connect with the shaft 21. Preferably, the shaft 21 is aligned with the center of the shaft connection portion 221 to ensure the dynamic balance of the fan blades during rotation. The blades 222 are evenly distributed on the outer peripheral wall of the shaft connection portion 221.

[0067] like Figure 7 As shown, in some embodiments of the motor 10, the length extension direction of the rotating shaft 21 is assumed to be the first direction D1. It should be noted that the fan blades 22 will make the air flow flow along the first direction D1 during the rotation process.

[0068] The size specifications and positional relationship of the shaft connecting portion 221 and the inner ring portion 122 have at least the following embodiments:

[0069] First, the projection surface α of the connecting shaft portion 221 in the first direction D1 completely falls within the projection surface β of the inner ring portion 122 in the first direction D1.

[0070] It can be understood that when the airflow flows along the first direction D1, it will flow along the first direction D1 from the edge of the connecting shaft portion 221. Therefore, under the condition that the projection surface α completely falls within the projection surface β, the connecting shaft portion 221 will not shield the winding interval 312, ensuring that the airflow can fully flow into each winding interval 312, thereby ensuring the cooling effect.

[0071] Secondly, the edge of the projection surface α of the connecting shaft portion 221 in the first direction D1 and the edge of the projection surface β of the inner ring portion 122 in the first direction D1 overlap with each other.

[0072] It can be understood that, in combination with the contents of the aforementioned embodiments, the coupling portion 221 also does not hinder the airflow flowing toward the winding interval 312 along the first direction D1, ensuring that the airflow can flow into the winding interval 312 after being driven by the fan blades 22.

[0073] like Figure 3 As shown, in some embodiments of the motor 10 , the circumferential outer wall of the connecting shaft portion 221 is aligned with the circumferential outer wall of the inner ring portion 122 .

[0074] It can be understood that, through the content of this type of embodiment, the airflow can be guided on the outer peripheral wall of the connecting shaft portion 221 and then directly flow to the winding interval 312, thereby preventing the airflow from being blocked by the inner ring portion 122 and causing airflow turbulence. In actual operation, the airflow will flow along the extension direction of the outer peripheral wall of the connecting shaft portion 221, and flowing along the extension direction can prevent the airflow from impacting the inner ring portion 122 to form turbulence, thereby ensuring the flow stability of the airflow.

[0075] See also Figure 1 , and also see Figures 3 to 6In some embodiments of the motor 10, the fan blade 22 further includes an air guide cone 223, the air guide cone 223 is disposed on the shaft connection portion 221, and the shaft 21 passes through the shaft connection portion 221 and the air guide cone 223;

[0076] The thickness of the wind guiding cone portion 223 gradually decreases in a direction away from the rotation shaft 21 , thereby forming a wind guiding inclined surface 224 for guiding wind on the wind guiding cone portion 223 .

[0077] It can be understood that the wind guide cone 223 is substantially in a cone shape. In actual application, the airflow will flow along the wind guide inclined surface 224, so that the airflow can be gathered toward the ventilation hole 121, thereby improving the heat dissipation effect.

[0078] like Figures 2 to 6 As shown, in some embodiments of the motor 10 , the protective device 1 further includes a plurality of air guides 13 , each of which is respectively connected to the inner wall of the housing 11 and the peripheral outer wall of the mounting seat 12 .

[0079] It can be understood that the air guide piece 13 is used to connect and fix the housing 11 and the mounting seat 12 on one hand, and is also used to guide the air flow between the housing 11 and the mounting seat 12 along a predetermined direction on the other hand.

[0080] like Figures 2 to 6 As shown, in some embodiments of the motor 10 , the stator device 3 further includes a plurality of connecting rods 32 and a circuit board 33 , each connecting rod 32 is disposed on each coil winding portion 311 in a one-to-one correspondence, and each connecting rod 32 is connected to the circuit board 33 .

[0081] It can be understood that the connecting rod 32 is used to fix the relative position of the circuit board 33 and the stator inner core 31. The circuit board 33 plays the role of transmitting electric energy and controlling the operation of related circuits.

[0082] Figure 8 A hair dryer 20 in some embodiments of the present invention is shown. The hair dryer 20 includes a housing 30 and a motor 10 . The housing 11 is disposed in the housing 30 .

[0083] It can be understood that the housing 30 is used to fix the casing 11, thereby achieving the function of fixing the motor 10. Of course, the housing 30 is also provided with corresponding devices, mechanisms, components or structures required for the hair dryer in the related art. Since the motor 10 has good heat dissipation performance, it can also avoid heat accumulation in the housing 30, ensuring the normal operation of the hair dryer 20.

[0084] The implementation of this utility model has the following beneficial effects:

[0085] The utility model relates to a motor and a hair dryer. The hair dryer is provided with a motor. On the motor, by opening a ventilation hole on a mounting seat and configuring the winding interval between the coil winding parts to be connected to the ventilation hole, the airflow can flow along the winding interval during the rotation of the fan blades, so that the airflow can exchange heat with the coil in the winding interval during the flow, thereby effectively reducing the heat of the coil; in this way, on the one hand, the influence of high temperature on the service life of the product can be avoided, thereby ensuring the service life of the product; on the other hand, the problem of heat accumulation of the product during long-term operation can be avoided, the product can be avoided from entering a power reduction working mode, thereby ensuring the long-term non-working performance of the product; in addition, the use safety of the product can be improved to a certain extent.

[0086] The scheme of the utility model has been described in detail above with reference to the accompanying drawings. In the above embodiments, the description of each embodiment has its own emphasis. For parts that are not described in detail in a certain embodiment, please refer to the relevant description of other embodiments. Those skilled in the art should also know that the actions and modules involved in the specification are not necessarily required for the utility model. In addition, it can be understood that the steps in the method of the embodiment of the utility model can be adjusted in order, merged and deleted according to actual needs, and the modules in the device of the embodiment of the utility model can be merged, divided and deleted according to actual needs.

[0087] The embodiments of the present invention have been described above, and the above description is exemplary, not exhaustive, and is not limited to the disclosed embodiments. Many modifications and changes are obvious to those of ordinary skill in the art without departing from the scope and spirit of the described embodiments. The selection of terms used herein is intended to best explain the principles of the embodiments, practical applications, or improvements to the technology in the market, or to enable other persons of ordinary skill in the art to understand the embodiments disclosed herein.

Claims

1. A motor, characterized in that: include: A protective device, the protective device comprising a shell and a mounting seat, the mounting seat is arranged in the shell, and a ventilation hole is opened on the mounting seat; A rotating device, the rotating device comprising a rotating shaft and a fan blade, the rotating shaft is rotatably arranged on the mounting seat, and the fan blade is arranged on the rotating shaft; A stator device, the stator device comprising a stator inner core, the stator inner core being arranged in the housing, the stator inner core comprising a plurality of coil winding portions, each of the coil winding portions being arranged along a circumferential direction, and a winding interval being arranged between two adjacent coil winding portions; When the fan blades rotate, the driving gas flows through the ventilation holes and the winding intervals.

2. The motor according to claim 1, characterized in that The mounting seat is provided with a plurality of ventilation holes, and the coil winding parts together form a plurality of winding intervals; Wherein, each of the ventilation holes is aligned with each of the winding intervals; or Some of the ventilation holes are aligned with the winding intervals; or Any of the ventilation holes is staggered with respect to the winding interval.

3. The motor according to claim 1, characterized in that The mounting seat includes an inner ring portion, an outer ring portion and a plurality of connecting ribs, the outer ring portion is sleeved on the inner ring portion, each of the connecting ribs is located between the inner ring portion and the outer ring portion, and every two adjacent connecting ribs define the ventilation hole between the inner ring portion and the outer ring portion; the rotating shaft is rotatably arranged on the inner ring portion.

4. The motor according to claim 3, characterized in that Each of the connecting ribs is in one-to-one correspondence with each of the coil winding portions.

5. The motor according to claim 3 or 4, characterized in that: The fan blade comprises a shaft connecting portion and a plurality of blades, each of the blades is arranged on the peripheral outer side wall of the shaft connecting portion, and the shaft connecting portion is connected to the rotating shaft.

6. The motor according to claim 5, characterized in that Assume that the length extension direction of the rotating shaft is a first direction; wherein the projection surface of the coupling portion in the first direction completely falls within the projection surface of the inner ring portion in the first direction; or An edge of a projection surface of the coupling portion in the first direction and an edge of a projection surface of the inner ring portion in the first direction overlap with each other.

7. The motor according to claim 5, characterized in that The circumferential outer side wall of the shaft connecting portion is aligned with the circumferential outer side wall of the inner ring portion.

8. The motor according to claim 5, characterized in that The fan blade further includes an air guide cone portion, the air guide cone portion is arranged on the shaft connecting portion, and the rotating shaft passes through the shaft connecting portion and the air guide cone portion; The thickness of the wind guiding cone portion gradually decreases in a direction away from the rotating shaft, thereby forming a wind guiding inclined surface for guiding wind on the wind guiding cone portion.

9. The motor according to claim 1, characterized in that The protective device further comprises a plurality of air guide plates, each of which is respectively connected to the inner wall of the shell and the outer peripheral wall of the mounting seat; or The stator device further comprises a plurality of connecting rods and a circuit board. The connecting rods are arranged on the coil winding parts one by one, and the connecting rods are connected to the circuit board.

10. A hair dryer, characterized in that: The hair dryer comprises a housing and a motor as claimed in any one of claims 1 to 9, wherein the shell is arranged in the housing.

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