JP5976712B2 - Fan motor and electronic equipment - Google Patents

Description

  The present invention relates to a fan motor used for cooling an apparatus and an electronic apparatus including the fan motor.

  Electronic devices such as notebook personal computers (notebook PCs) are provided with heating elements such as CPUs and graphic chips inside the device housing. Therefore, a fan motor for cooling these heating elements may be mounted inside the device casing of the electronic device.

  For example, in Patent Document 1, as a fan motor used for cooling an electronic device, a shaft provided at the center of a rotating part provided with an impeller part on the outer peripheral side is pivotally supported on the inner peripheral surface of the bearing part, and the outer periphery of the bearing part is provided. An outer rotor type fan motor is disclosed in which a stator is arranged on the side and a stator fixed to a rotating part is arranged on the outer peripheral side thereof. This fan motor houses a rotating part and an impeller part inside a fan casing, and an air inlet for sucking external air is formed in the center of the upper plate part of the fan casing.

JP 2013-117300 A

  By the way, in recent years, there is an increasing demand for thinning electronic devices such as notebook PCs. For this reason, devices such as a device housing and a fan motor disposed in the device housing have been reduced in thickness, and a gap between the device housing and the device has been reduced. For this reason, for example, when the user presses the keyboard device strongly or grips the upper and lower surfaces of the device housing, the device housing bends inward and the wall surface of the device housing is inside. May interfere with other devices.

  Therefore, when the fan motor of Patent Document 1 is mounted on such an electronic device, the upper surface of the fan housing is pressed by the bent device housing, or inside the air intake opening opened on the upper surface. There is a possibility that the equipment casing enters and interferes with the rotating part of the fan motor. When the device housing and the fan motor interfere with each other, the smooth rotation is hindered or cannot be performed, and the fan motor may be deformed and damaged depending on the degree of interference.

  The present invention has been made in consideration of the above-described problems of the prior art, and provides a fan motor capable of maintaining stable rotation even when external force is applied, and an electronic apparatus including the fan motor. The purpose is to do.

  A fan motor according to the present invention has a shaft that is rotatably supported by a bearing portion, and is provided on a rotating portion that is rotationally driven by a driving source with the shaft as a rotating shaft, and on the outer peripheral side of the rotating portion A fan motor having an impeller portion, wherein the shaft is provided with a through hole along an axial direction thereof, and a support post is inserted into the through hole.

  According to such a configuration, the shaft is provided with a through hole along the axial direction, and the support column is inserted into the through hole. As a result, even when the housing of the device on which the fan motor is mounted is crushed and deformed by projecting the pillar inserted through the through hole of the shaft to one side and the other side of the fan motor, The support column becomes a tension rod for the device casing. For this reason, the further bending of an apparatus housing is blocked | prevented and it is prevented that an apparatus housing interferes with a rotation part and an impeller part. Therefore, smooth rotation of the fan motor is hindered or cannot be rotated, and further, the fan motor can be prevented from being deformed and damaged, and stable rotation can be maintained.

  The fan motor is arranged inside the device casing of the electronic device, and the support posts of the device casing on one side and the other side of the fan motor are inserted through the through hole. If it is possible to contact the one wall surface and the other wall surface at the same time, the support column can be made to function more reliably as a tension rod in the device housing.

  In a state in which no external force is applied to the device casing, the support column is separated from at least one wall surface or the other wall surface of the device casing, and the device casing is bent by applying an external force to the device casing. In this case, it is preferable that the support column is in contact with one wall surface and the other wall surface of the device casing at the same time. This prevents the strut from interfering with the equipment housing during assembly of the fan motor to the equipment housing, since the support does not stretch inside the equipment housing during normal times when no external force is applied to the equipment housing. Even if the component accuracy varies to some extent, the fan motor can be smoothly assembled to the equipment housing.

  A fan housing having a first cover plate covering one surface side of the rotating portion and the impeller portion and a second cover plate covering the other surface side; and the first cover plate and the second cover plate include at least the above-mentioned An opening is formed at a position overlapping the shaft, and the support column is configured to contact one wall surface and the other wall surface of the device housing through the opening portions of the first cover plate and the second cover plate. Good. As a result, even when the device housing is deformed by receiving an external force, it is possible to prevent the device housing from interfering with the fan housing by the support, and the rotation of the fan motor can be maintained more stably.

  It is preferable that the support column is supported by the fan housing. If it does so, a fan motor and a support | pillar can be assembled integrally. As a result, the positional relationship between the shaft through-hole and the column can be fixed in advance, and this positional relationship does not shift even when the fan motor is assembled to an electronic device, and the fan motor can be easily assembled. become.

  One end is elastically displaced in the axial direction of the shaft by connecting a plurality of leg portions supported by the outer edge portion of the fan housing and the other end of each leg portion at a position overlapping the axial direction of the shaft. It is preferable that a support body having a connecting portion provided in a possible manner is provided, and the support column protrudes from the connecting portion of the support body. Then, the support can be supported in a state that it can be displaced in the axial direction of the shaft, the work of assembling the fan motor to the equipment housing becomes smoother, and the action of the support as a tension rod is surely exhibited. Can be made.

  The column may be in a state where it is always in contact with one wall surface and the other wall surface of the device casing. If it does so, the effect | action of the tension rod by a support | pillar can be obtained with a simpler structure.

  The drive source may be an outer rotor type motor having a stator provided on the outer peripheral side of the bearing portion and a rotor provided on the outer peripheral side of the stator and fixed to the rotating portion. Good.

  The bearing portion may rotatably support the cylindrical shaft on the inner peripheral surface of the cylindrical member.

  An electronic apparatus according to the present invention is an electronic apparatus in which a heating element and a fan motor used for cooling the heating element are housed in an apparatus casing, and the fan motor is rotatably supported by a bearing portion. A rotating part that has a shaft and is driven to rotate by a driving source with the shaft as a rotation axis, and an impeller part provided on the outer peripheral side of the rotating part. The shaft penetrates along the axial direction. A hole is provided, and a strut is inserted into the through-hole, and the strut is inserted into the through-hole, and the one wall surface of the device casing and the other on the one surface side and the end surface side of the fan motor. It is possible to simultaneously contact the wall surface.

  According to such a configuration, the fan motor can cool the heating element inside the device casing, and the fan motor can maintain a stable rotation by acting as a support rod of the column inside the device casing. can do.

  The electronic device may have a keyboard device on one surface side of the device housing, and the fan motor may be disposed at a position where at least the shaft is below the keyboard device. Then, the pressing force when operating the keyboard device is large, and even when the keyboard device is bent downward, the keyboard device deformed by the action of the support can be prevented from interfering with the fan motor. Cooling does not become unstable, and the electronic device can be used stably.

  According to the present invention, it is possible to prevent the device housing from being excessively bent by the support, and thus it is possible to prevent the device housing from interfering with the fan motor and to maintain stable rotation of the fan motor. .

FIG. 1 is a partially exploded perspective view of an electronic apparatus including a fan motor according to an embodiment of the present invention. FIG. 2 is a perspective view of the fan motor. FIG. 3 is a perspective view of the fan motor with a support attached. FIG. 4 is a longitudinal sectional view of a state in which a fan motor with a support attached is mounted on an electronic device. FIG. 5 is an enlarged longitudinal sectional view of the vicinity of the center of the fan motor shown in FIG. FIG. 6 is a longitudinal sectional view showing a state in which an external force is applied to the device casing on which the fan motor shown in FIG. 5 is mounted. FIG. 7 is a longitudinal sectional view in a state where a fan motor of another configuration example is mounted on an electronic device.

  DESCRIPTION OF EMBODIMENTS Hereinafter, a fan motor according to the present invention will be described in detail with reference to the accompanying drawings by giving preferred embodiments in relation to an electronic device including the fan motor.

  FIG. 1 is a partially exploded perspective view of an electronic device 12 including a fan motor 10 according to an embodiment of the present invention, and shows a state in which a keyboard device 14 is removed from a main body portion 16.

  As shown in FIG. 1, the electronic device 12 is a notebook PC that includes a main body portion 16 on the upper surface side of which a keyboard device 14 that is an input device is mounted, and a display portion 18 that is a display of the main body portion 16. Examples of the electronic device to which the fan motor 10 can be applied include various devices such as a desktop PC, a game device, and a home appliance other than the notebook PC. 1 illustrates a configuration in which the fan motor 10 is mounted horizontally, but the fan motor 10 can be used in various postures such as vertically or obliquely.

  The main body portion 16 includes a box-shaped device housing 20 and a body substrate 22 that is an electronic circuit substrate such as a motherboard housed in the device housing 20. The fan motor 10 is disposed at the left back corner inside the device housing 20 and is attached to the main body substrate 22. The fan motor 10 is installed such that an air outlet 24 opened on one side thereof faces an exhaust port 26 formed by providing a plurality of slits on the side surface of the device housing 20. In addition to a CPU (Central Processing Unit) 22 a, a chip set and a memory (not shown) are mounted on the main body substrate 22. The CPU 22 a is a heating element that generates a large amount of heat among the devices mounted on the main body substrate 22. Therefore, a heat pipe 28 is bridged between the fan motor 10 and the CPU 22a, and heat generated by the CPU 22a can be efficiently discharged from the exhaust port 26 to the outside by the fan motor 10. Of course, the heat pipe 28 may be directly cooled by the fan motor 10 without providing the heat pipe 28.

  The display unit 18 is a lid that is rotatably connected to the main body unit 16 by a pair of left and right hinges 29 and 29. The display unit 18 includes a display such as a liquid crystal display panel on the inner surface thereof. The display unit 18 is electrically connected to the main body substrate 22 by a cable (not shown) that has passed through the hinge 29.

  The keyboard device 14 has a key top group 14a in which a plurality of keys are arranged in a predetermined pattern on the upper surface thereof. The keyboard device 14 is connector-connected to the main body substrate 22 by a cable (not shown) drawn from one side surface thereof.

  Next, the configuration of the fan motor 10 will be described.

  FIG. 2 is a perspective view of the fan motor 10 and shows how the support 30 is attached to the fan motor 10. FIG. 3 is a perspective view of the fan motor 10 with the support 30 attached thereto. FIG. 4 is a longitudinal sectional view in a state where the fan motor 10 to which the support body 30 is attached is mounted on the electronic device 12.

  As shown in FIGS. 2 to 4, the fan motor 10 includes a motor unit 32 that is a drive source, a rotating unit 34 that is rotationally driven by the motor unit 32, and an impeller unit 36 that is provided on the outer peripheral side of the rotating unit 34. And a centrifugal fan. The motor unit 32, the rotating unit 34, and the impeller unit 36 are accommodated in a fan housing 38.

  The rotating part 34 is formed in a substantially cylindrical shape with a lid. The rotating part 34 includes a shaft 40 projecting from the center, a bearing accommodating part 42 provided on the outer peripheral side of the shaft 40, and a motor accommodating part 44 provided on the outer peripheral side of the bearing accommodating part 42.

  The shaft 40 serves as a rotating shaft of the rotating portion 34 and is rotatably supported by a bearing portion 46 fixed to the fan housing 38 side. The shaft 40 is a cylindrical shaft in which a through hole 40a along the axial direction is formed at the axial center thereof, and is prevented from coming off from the bearing portion 46 by a washer provided on the lower end side. A support column 50 supported by a support 30 described later is inserted through the through hole 40a.

  A bearing portion 46 is disposed in a space below the bearing housing portion 42. The bearing portion 46 includes a bearing (cylindrical member) 48 that rotatably supports the outer peripheral surface of the shaft 40 on the inner peripheral surface thereof. The outer peripheral surface of the bearing 48 is held by the inner peripheral surface of a cylindrical sleeve 49. The outer periphery of the sleeve 49 is held by the inner periphery of the cylindrical bush 52. The sleeve 49 and the bush 52 are sandwiched between an outer peripheral side surface 54 a of a covered disc-shaped support plate 54 disposed below the shaft 40 and an inner peripheral side surface 56 a of the lower cover plate 56 constituting the fan housing 38. As a result, the fan casing 38 is fixed. In the center of the support plate 54, a hole portion 54b having the same diameter as or slightly larger than the through hole 40a of the shaft 40 is formed.

  A magnet 58 is provided in the motor housing portion 44, and a coil 60 is disposed in a lower space of the motor housing portion 44. The magnet 58 is fixed along the circumferential direction on the inner surface of the cylindrical portion 34 a that is the outer peripheral side surface of the rotating portion 34. The coil 60 is provided along the circumferential direction on the outer surface side of the inner peripheral side surface 56 a of the lower cover plate 56, and is fixed to the upper surface of the lower cover plate 56. The magnet 58 and the coil 60 are arranged to face each other in the state of being close to each other, and constitute the motor unit 32.

  In the motor unit 32, the magnet 58 serves as a rotor (rotor) of the motor unit 32, and the coil 60 serves as a stator (stator) of the motor unit 32. Therefore, when a current from a power supply device (not shown) is supplied to the coil 60, the rotating portion 34 to which the magnet 58 is fixed is used as a rotating shaft about the shaft 40 supported by the bearing portion 46. It is driven to rotate as the center of rotation. Thus, the motor part 32 is configured as an outer rotor type motor.

  The impeller portion 36 extends radially outward from the cylindrical portion 34 a of the rotating portion 34, and turns around the shaft 40 as a rotation axis together with the rotating portion 34 by the motor portion 32, and the shaft center of the shaft 40 is the center of rotation. The impeller portion 36 includes an annular plate-shaped cup 62 continuously extending from the cylindrical portion 34 a and a plurality of blades 64 extending radially outward from the outer peripheral edge portion of the cup 62.

  The fan housing 38 houses the motor unit 32, the rotating unit 34, and the impeller unit 36. The fan housing 38 includes an upper cover plate (first cover plate) 55 that covers the upper surface side of the rotating portion 34 and the impeller portion 36, a lower cover plate (second cover plate) 56 that covers the lower surface side, and an upper cover plate 55. And a side wall plate 66 that covers the side surface of the storage space formed between the lower cover plate 56 and the lower cover plate 56.

  The upper cover plate 55 is a thin plate in which one side of a rectangle is formed in a circular shape as shown in FIG. In the center of the upper cover plate 55, a circular opening 55a whose center is coaxial with the axis of the shaft 40 is formed so that a part of the rotating portion 34 and the impeller portion 36 is exposed. The opening 55 a serves as an air intake port for taking outside air into the fan housing 38 by the rotation of the impeller portion 36.

  The lower cover plate 56 has an outer shape that overlaps with the upper cover plate 55 in plan view. In the center of the lower cover plate 56, an opening 56b is defined by an inner peripheral side surface 56a. As described above, the lower cover plate 56 holds the bearing portion 46 inside the opening 56b and holds the coil 60 on the outer peripheral side thereof.

  The side wall plate 66 is a substantially U-shaped thin plate that borders the outer edges of the upper cover plate 55 and the lower cover plate 56 in plan view. The side wall plate 66 covers the side of the impeller portion 36, and is erected so as to surround the plurality of blades 64 from the radially outward direction. The side wall plate 66 is fixed to the upper cover plate 55 and the lower cover plate 56 by screwing or insert molding, whereby a thin box-shaped fan housing 38 is formed. In the fan housing 38, the position on the U-shaped opening side where the side wall plate 66 is not disposed is the blower opening 24 (see FIG. 4). A plurality of (five in FIG. 2) mounting pockets 68 are provided on the outer surface of the side wall plate 66.

  Therefore, in the fan motor 10, when the rotating unit 34 is rotationally driven by the motor unit 32, the impeller unit 36 rotates around the axis of the shaft 40 and an air flow is generated. As a result, the air taken into the fan housing 38 from the opening 55a of the upper cover plate 55 is discharged from the air outlet 24 to the outside of the fan housing 38, and is discharged from the air outlet 26 of the device housing 20 to the outside. It will be exhausted. At this time, in the electronic device 12, the heat of the CPU 22 a carried by the heat pipe 28 is discharged to the outside by the air blowing from the air blowing port 24.

  Next, the structure of the support body 30 attached to the fan motor 10 and the operation of the support column 50 supported by the support body 30 will be described.

  FIG. 5 is an enlarged longitudinal sectional view of the vicinity of the center of the fan motor 10 shown in FIG. 4, and FIG. 6 shows a state in which an external force is applied to the device housing 20 on which the fan motor 10 shown in FIG. 5 is mounted. It is a longitudinal cross-sectional view.

  As shown in FIGS. 2 to 4, the support body 30 supports the support column 50 inserted through the through hole 40 a of the shaft 40 described above. The support body 30 includes a plurality of leg portions 70 (five in FIG. 2) arranged in the circumferential direction so that the distal ends thereof extend in the radial direction, and a central connection portion 72 that connects the base ends of the leg portions 70. An octopus foot-shaped member having

  Each leg 70 is attached and fixed to the fan housing 38 by inserting the bent tip engaging piece 70 a into each mounting pocket 68. The connecting portion 72 is a circular portion that integrally connects the base ends of the leg portions 70, and is arranged coaxially so that the center thereof overlaps the axial direction of the shaft 40. A hole is formed in the center of the connecting portion 72, and the support 50 is fitted and fixed so as to project downward in this hole. The number of the leg portions 70 can be changed as appropriate, and the connecting portion 72 may be supported by one cantilever.

  Thus, the support column 50 extending downward from the connecting portion 72 is inserted into the through hole 40 a of the shaft 40. The support column 50 preferably overlaps the axis of the through hole 40a, and more preferably the axis of the support column 50 and the axis of the through hole 40a are coaxial. If it does so, the contact with the internal peripheral surface of the rotating through-hole 40a and the support | pillar 50 which does not rotate can be avoided reliably. The support column 50 may be formed integrally with the connecting portion 72, and in this case, the upper surface of the connecting portion 72 becomes the base end surface (upper end surface) of the support column 50.

  As shown in FIG. 6, when the device housing 20 is crushed and deformed to some extent by receiving external force, the column 50 is against the upper wall surface (base plate 14 b) and the lower wall surface (bottom plate 20 a) of the device housing 20. It is set to a length dimension that enables contact at the same time. In other words, as shown in FIG. 5, in the state where the device housing 20 is not crushed and deformed, at least one of the upper end surface and the lower end surface (the lower end surface in FIG. 5) of the support column 50 is the device housing. The length dimension is set to be separated from 20 wall surfaces (bottom plate 20a serving as a lower wall surface in FIG. 5). In the case of this embodiment, the upper wall surface of the device housing 20 is the lower surface of the base plate 14 b that is the lower plate of the keyboard device 14, and the lower wall surface of the device housing 20 is the bottom plate 20 a that is the bottom plate of the device housing 20. It is the top surface.

  As shown in FIG. 5, such a support 30 is in a posture in which each leg portion 70 is gradually inclined upward in the radially inward direction in a state where no external force is received. For this reason, the connecting portion 72 is urged and supported in a direction away from the upper cover plate 55 of the fan housing 38 by each leg portion 70, and is elastically displaced in the axial direction of the shaft 40 using each leg portion 70 as a spring. It is in a possible state. At this time, the column 50 protruding from the connecting portion 72 is inserted through the opening 55a of the upper cover plate 55, the through hole 40a of the shaft 40, and the hole 54b of the support plate 54, and the lower end surface (tip surface) thereof is a hole. It is located below the portion 54 b and is located away from the bottom plate 20 a of the device housing 20.

  On the other hand, as shown in FIG. 6, for example, when the keyboard device 14 is strongly pressed or the device housing 20 is gripped by hand, the device housing 20 is bent to some extent in the collapsed direction. The connecting portion 72 receives a downward pressing force from the base plate 14b of the body 20. If it does so, each leg part 70 will deform | transform elastically, the connection part 72 will be displaced below, and the support | pillar 50 will move below in the axial direction. When the lower end surface of the support column 50 comes into contact with the bottom plate 20a of the device casing 20, the support column 50 comes into contact with the upper wall surface and the lower wall surface of the device housing 20 at the same time. Thereby, since the support | pillar 50 functions as a tension rod between the upper wall surface and lower wall surface of the apparatus housing | casing 20, the bending of the apparatus housing | casing 20 beyond that is blocked | prevented. For this reason, the device housing 20 deformed by receiving external force is prevented from interfering with the upper cover plate 55 of the fan housing 38 and pressing and deforming it. Further, it is possible to prevent the deformed device casing 20 from entering the opening 55 a of the upper cover plate 55 and directly interfering with the rotating portion 34 and the impeller portion 36 of the fan motor 10.

  As described above, according to the fan motor 10 according to the present embodiment, the shaft 40 is provided with the through hole 40a along the axial direction, and the support column 50 is inserted into the through hole 40a. As a result, the column 50 inserted through the through hole 40a of the shaft 40 is protruded toward the upper surface side and the lower surface side of the fan motor 10, so that the column 50 can be deformed even when the device housing 20 is crushed and deformed by an external force. It becomes a tension rod for the device housing 20. Therefore, further bending of the device housing 20 is prevented, and the device housing 20 is prevented from interfering with the fan housing 38, the rotating unit 34, and the impeller unit. Accordingly, smooth rotation of the fan motor 10 is hindered or cannot be performed, and further, the fan motor 10 is prevented from being deformed and damaged, so that stable rotation can be maintained. The reliability of the unit 34 can be maintained. In addition, it is possible to prevent the occurrence of noise due to the device housing 20 interfering with the rotating portion 34 and the like.

  In a state where the fan motor 10 is disposed inside the device housing 20 of the electronic device 12, the support column 50 is in the device housing on the upper surface side and the lower surface side of the fan motor 10 with the through hole 40 a of the shaft 40 inserted. It can contact | abut simultaneously with the base plate 14b and the bottom plate 20a which become the upper and lower wall surface of the body 20 (refer FIG. 6). Thereby, the support | pillar 50 can be functioned more reliably as a tension rod in the apparatus housing | casing 20. FIG.

  In this case, in a state in which no external force is applied to the device housing 20, the support column 50 is separated from at least the upper wall surface or the lower wall surface of the device housing 20. When the body 20 is bent, the support column 50 is in contact with one wall surface and the other wall surface of the device housing 20 at the same time. As a result, the support column 50 is not stretched inside the device housing 20 at normal times when no external force is applied to the device housing 20, so that the support column 50 is mounted on the device housing 20 when the fan motor 10 is assembled to the device housing 20. Interference with the body 20 can be avoided, and even when the component accuracy varies to some extent, a smooth assembly operation can be performed. In addition, when the device housing 20 is bent by receiving an external force, the support column 50 simultaneously contacts the upper wall surface and the lower wall surface of the device housing 50 and functions reliably as a support column between both wall surfaces.

  As shown in FIG. 7, the struts 50 may always be in contact with one wall surface and the other wall surface of the device housing 20 regardless of the presence or absence of external force on the device housing 20. In the case of this structure, even if the elastic displacement structure of the support body 30 is omitted, the support column 50 can function as a tension rod in the device housing 20, so that the structure of the fan motor 10 and the support body 30 can be further improved. It can be simplified.

  The fan motor 10 includes a fan housing 38 having an upper cover plate 55 covering the upper surface side of the rotating portion 34 and the impeller portion 36 and a lower cover plate 56 covering the lower surface side, and the upper cover plate 55 and the lower cover plate 56 include Openings 55a and 56b are formed at least at positions overlapping with the shaft 40, and the column 50 abuts against the wall surface of the equipment housing 20 through the openings 55a and 56b. Thereby, even when the device housing 20 is deformed by receiving an external force, the device housing 20 can be prevented from interfering with the fan housing 38 by the support 50, and the rotation of the fan motor 10 can be maintained more stably. be able to.

  Since the support 50 is supported by the fan housing 38 via the support 30, the fan motor 10 and the support 50 can be assembled together. As a result, the positional relationship between the through hole 40a of the shaft 40 and the support column 50 can be fixed in advance, and the positional relationship does not shift even when the fan motor 10 is assembled to the electronic device 12. Assembling work becomes easier. If the processing accuracy and assembly accuracy of the parts can be sufficiently ensured, the support column 50 is provided directly on the upper and lower wall surfaces (base plate 14b or bottom plate 20a) of the device housing 20, and the fan motor 10 is mounted on the device housing. The support 50 may be inserted into the through-hole 40a when assembled to the through hole 40a. In this case, since the support body 30 can be omitted, the fan motor 10 can be configured at a lower cost.

  In addition, the electronic device 12 equipped with such a fan motor 10 has the keyboard device 14 on the upper surface side of the device housing 20, and the fan motor 10 is located below the keyboard device 14 including the support 50. It is arranged. Therefore, the pressing force when operating the keyboard device 14 is large, and even when the keyboard device 14 is bent downward, the keyboard device 14 deformed by the action of the support 50 is prevented from interfering with the fan motor 10. Therefore, the cooling by the fan motor 10 does not become unstable, and the electronic device 12 can be used stably.

  It should be noted that the present invention is not limited to the above-described embodiment, and it is needless to say that the present invention can be freely changed without departing from the gist of the present invention.

DESCRIPTION OF SYMBOLS 10 Fan motor 12 Electronic device 14 Keyboard apparatus 14b Base plate 16 Main body part 18 Display part 20 Equipment housing | casing 20a Bottom plate 22 Main body board 22a CPU
24 Air outlet 26 Air outlet 28 Heat pipe 30 Support body 32 Motor part 34 Rotating part 36 Impeller part 38 Fan housing 40 Shaft 40a Through hole 46 Bearing part 55 Upper cover plate 55a, 56b Opening part 56 Lower cover plate 58 Magnet 60 Coil 66 Side wall plate 68 Mounting pocket 70 Leg 72 Connecting part

Claims (10)

A fan motor having a shaft rotatably supported by a bearing portion, and having a rotating portion that is driven to rotate by a drive source using the shaft as a rotating shaft, and an impeller portion provided on the outer peripheral side of the rotating portion Because
The shaft is provided with a through hole along its axial direction, and a support post is inserted through the through hole .
The fan motor is disposed inside the device casing of the electronic device,
The support column can be simultaneously brought into contact with one wall surface and the other wall surface of the device housing on the one surface side and the other surface side of the fan motor in a state of being inserted through the through hole,
In a state where no external force is applied to the device housing, the support column is separated from at least one wall surface or the other wall surface of the device housing,
When the external force to the apparatus housing is granted flexed the apparatus housing, characterized Rukoto such a state of abutting simultaneously against the struts one wall surface and the other wall surface of the apparatus housing Fan motor. A fan motor having a shaft rotatably supported by a bearing portion, and having a rotating portion that is driven to rotate by a drive source using the shaft as a rotating shaft, and an impeller portion provided on the outer peripheral side of the rotating portion Because
The shaft is provided with a through hole along its axial direction, and a support post is inserted through the through hole .
The fan motor is disposed inside the device casing of the electronic device,
The support column can be simultaneously brought into contact with one wall surface and the other wall surface of the device housing on the one surface side and the other surface side of the fan motor in a state of being inserted through the through hole,
A fan housing having a first cover plate covering one side of the rotating unit and the impeller unit and a second cover plate covering the other side;
In the first cover plate and the second cover plate, an opening is formed at a position overlapping at least the shaft,
The struts are in contact with one wall surface and the other wall surface of the device housing through the openings of the first cover plate and the second cover plate,
The fan motor strut, characterized that you have been supported by the fan housing. The fan motor according to claim 2, wherein
In a state where no external force is applied to the device housing, the support column is separated from at least one wall surface or the other wall surface of the device housing,
When the external force is applied to the device housing and the device housing is bent, the support is in a state of simultaneously contacting the one wall surface and the other wall surface of the device housing. motor. The fan motor according to claim 2 or 3 ,
One end is elastically displaced in the axial direction of the shaft by connecting a plurality of leg portions supported by the outer edge portion of the fan housing and the other end of each leg portion at a position overlapping the axial direction of the shaft. A support body having a connecting portion provided in a possible manner,
The fan motor, wherein the support column protrudes from a connecting portion of the support. The fan motor according to claim 2, wherein
The fan motor according to claim 1, wherein the support is always in contact with one wall surface and the other wall surface of the device casing. In the fan motor according to any one of claims 1 to 5 ,
The drive source is an outer rotor type motor having a stator provided on the outer peripheral side of the bearing portion and a rotor provided on the outer peripheral side of the stator and fixed to the rotating portion. Features a fan motor. The fan motor according to claim 6 , wherein
The fan motor, wherein the bearing portion rotatably supports the cylindrical shaft on an inner peripheral surface of a cylindrical member. An electronic device in which a heating element and a fan motor used for cooling the heating element are housed in an equipment housing,
The fan motor has a shaft that is rotatably supported by a bearing portion, a rotating portion that is rotationally driven by a drive source with the shaft as a rotating shaft, and an impeller portion that is provided on the outer peripheral side of the rotating portion; With
The shaft is provided with a through hole along its axial direction,
A strut is inserted into the through hole, and the strut is simultaneously in contact with one wall surface and the other wall surface of the device housing on one surface side and the end surface side of the fan motor with the through hole being inserted. possible der is,
In a state where no external force is applied to the device housing, the support column is separated from at least one wall surface or the other wall surface of the device housing,
When the external force to the apparatus housing is granted flexed the apparatus housing, characterized Rukoto such a state of abutting simultaneously against the struts one wall surface and the other wall surface of the apparatus housing Electronics. An electronic device in which a heating element and a fan motor used for cooling the heating element are housed in an equipment housing,
The fan motor has a shaft that is rotatably supported by a bearing portion, a rotating portion that is rotationally driven by a drive source with the shaft as a rotating shaft, and an impeller portion that is provided on the outer peripheral side of the rotating portion; With
The shaft is provided with a through hole along its axial direction,
A strut is inserted into the through hole, and the strut is simultaneously in contact with one wall surface and the other wall surface of the device housing on one surface side and the end surface side of the fan motor with the through hole being inserted. possible der is,
The fan motor includes a fan housing having a first cover plate covering one side of the rotating unit and the impeller unit and a second cover plate covering the other side.
In the first cover plate and the second cover plate, an opening is formed at a position overlapping at least the shaft,
The struts are in contact with one wall surface and the other wall surface of the device housing through the openings of the first cover plate and the second cover plate,
The strut electronic apparatus characterized that you have been supported by the fan housing. The electronic device according to claim 8 or 9 ,
The electronic device has a keyboard device on one side of the device housing,
The electronic apparatus according to claim 1, wherein the fan motor is disposed at a position where at least the shaft is below the keyboard device.

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