Blower device and air conditioner having the same for vehicle

A blower device includes: a motor support component fixed to a lower surface of a casing; and a connector including a connection terminal in which electric current flows disposed below the casing. The blower device further includes: a first cover wall part extending in an up-and-down direction and a circumferential direction and spaced from an external wall part of the motor support component on an outer side; a groove portion connecting the first cover wall part and the motor support component; and a cover component which covers an upper side of the connector. The cover component is integrally formed with the outer side of the first cover wall part. A length of the groove portion in the circumferential direction is longer than the connector. Both ends of the groove portion are located outside of both ends of the connector in the circumferential direction.

CROSS REFERENCE TO RELATED APPLICATIONS

This application is a U.S. National Phase Application under 35 U.S.C. 371 of International Application No. PCT/JP2015/000382 filed on Jan. 29, 2015 and published in Japanese as WO 2015/12233 A1 on Aug. 20, 2015. This application is based on and claims the benefit of priority from Japanese Patent Application No. 2014-026936 filed on Feb. 14, 2014. The entire disclosure of all of the above applications are incorporated herein by reference.

TECHNICAL FIELD

The present disclosure relates to a blower device and an air conditioner having the same for a vehicle.

BACKGROUND ART

Non patent literature 1 discloses a blower device for air-conditioning, in which water flows downward along a groove defined in a flange surface of a casing that supports a motor, to prevent the motor from receiving the water. The water guided by the groove is drained outside from the lower end part of the flange surface which forms a vertical plane.

PRIOR ART LITERATURES

Non Patent Literature

Non Patent Literature 1: Journal of technical disclosure No. 2013-503450

SUMMARY OF INVENTION

In the blower device of Non patent literature 1, moisture may be contained in air flowing through an air passage. For example, when a blower device takes in outside air, if the outside air includes rain, snow, or the like, humid air flows through the air passage, and water drop may fall inside the blower device. The dropped water may leak outside from a fitting portion of a case which forms the air passage.

The leaked water may move along a wall while flowing downward with gravity, and may reach a connector which is one of electrical parts used for supplying electric power to a motor. If the connector receives water, a short circuit may be generated between connection terminals in the connector. Although there is a concept of making the connector itself waterproof as a measure against water, the cost of the connector increases in this case.

It is an object of the present disclosure to provide a blower device in which water leaked out of an air passage can be prevented from reaching a connector which is an electric part, and an air-conditioner having the blower device for a vehicle.

The disclosed blower device includes:

a casing having an air passage in which air flows;

a fan disposed in the casing;

a motor that provides a driving force to rotate the fan;

a motor support component fixed to a lower surface of the casing to support the motor, the motor support component havingan external wall part in contact with the casing around a perimeter part,an inner wall surface communicated to the air passage, andan outer wall surface exposed outside;

a first cover wall part formed integrally with the motor support component, the first cover wall part extending in an axial direction and a circumferential direction to be spaced from the external wall part on an outer side;

a groove portion that integrally connects the first cover wall part and the motor support component with each other, the groove portion having a bottom surface extending in the circumferential direction and located below an upper end of the external wall part and an upper end of the first cover wall part;

a connector including a connection terminal in which electric current flows, the connector being disposed below the casing or the motor support component; and

a cover component integrally formed with an outer side of the first cover wall part to cover an upper side of the connector.

The groove portion has a length longer than that of the connector in the circumferential direction, and

the groove portion has ends in the circumferential direction, and the ends of the groove portion are located outside of ends of the connector in the circumferential direction, respectively.

Accordingly, when water existing in the air passage flows downward along the inner wall surface of the motor support component due to gravity, and when the water is leaked outside through various crevices such as a fitting portion between the motor support component and the casing, the leaked water can be restricted from reaching the connector as a waterproofing structure. The water leaked out of the casing moves along the external wall part of the motor support component, and flows through the groove portion located lower than the upper end of the external wall part. That is, the water moving along the external wall part of the motor support component cannot be directly transmitted from the external wall part to the first cover wall part, since the first cover wall part stands to be spaced from the motor support component.

The water which fell onto the groove portion cannot move over the upper end of the first cover wall part located at the position higher than the groove portion, and falls after reaching one of the ends of the groove portion or the first cover wall part in the circumferential direction. The water is not poured on the connector, since the both ends of the groove portion and the first cover wall part in the circumferential direction are located outside of the both ends of the connector in the circumferential direction. As mentioned above, the water leaked outside the casing is flows through a course not in contact with the connector, finally. Thus, the connection terminal inside the connector can be prevented from being wet. Therefore, according to the present disclosure, a blower device can be provided in which water leaked from an air passage can be prevent from reaching the connector which is an electric part.

DESCRIPTION OF EMBODIMENTS

A blower device to which the present disclosure is applied is explained with reference toFIG. 1-FIG. 9.FIG. 1is a schematic view for explaining an air-conditioner1for a vehicle, according to a first embodiment, equipped with the blower device to which the present disclosure is applied. InFIG. 1, the upper side represents an upper side in the vehicle, the lower side represents a lower side in the vehicle, the left side represents a left side in the vehicle, the right side represents a right side in the vehicle, the direction going to the front represents a rearward in the vehicle, and the direction going behind represents a frontward in the vehicle. A ventilation unit3which is an example of the blower device to which the present disclosure is applied can be solely used as one product, and can also be used as a part of one product by combining with the other equipment. In the first embodiment, the ventilation unit3is used as a part of the air-conditioner1.

As shown inFIG. 1, the air-conditioner1includes, for example, an air-conditioning unit2which performs temperature control of air sent from the ventilation unit3, and a duct part23which defines an air passage connecting the ventilation unit3and the air-conditioning unit2, in addition to the ventilation unit3. Each of the air-conditioning unit2, the ventilation unit3, and the duct part23is made of a product molded with, for example, polypropylene (PP resin). When improving the strength, PP resin containing talc and glass fiber of a predetermined quantity may be used.

The ventilation unit3is arranged offset from the central part toward a front passenger seat in a space behind the instrument panel in the passenger compartment. The air-conditioning unit2is arranged at approximately central part in the width direction of the vehicle, in the space behind the instrument panel. Since the space is communicated with the passenger compartment where an occupant exists, air in the space is communicated to air in the passenger compartment.

The air-conditioning unit2includes an evaporator20, a heater core21, and an air mixing door in a common case as air-conditioning functional components for conditioning air to be sent into the passenger compartment. The evaporator20is thin in the front-and-rear direction of the vehicle, and is arranged to cross a passage within the case. Therefore, blast air from the ventilation unit3flows into the front surface of the evaporator20extending in the up-and-down direction and the right-and-left direction of the vehicle. The evaporator20cools air by absorbing the evaporation latent heat of refrigerant in a refrigerating cycle.

The heater core21is arranged downstream of the evaporator20in the flow of air, that is on the rear side in the vehicle, with a predetermined interval. The heater core21heats air cooled by passing through the evaporator20. Hot water (for example, engine cooling water) flows inside the heater core21, and air is heated by the hot water as a heat source.

A bypass channel for the cooled air is formed on the upper side of the heater core21within the case. The cooled air bypasses the heater core21by flowing through the bypass channel. The air mixing door is disposed between the heater core21and the evaporator20within the case, and controls the ratio of the warm air heated with the heater core21and the cooled air which bypasses the heater core21through the bypass channel.

The air mixing door adjusts the ratio of the amount of the warm air which passes through the heater core21to the amount of the cooled air which does not pass through the heater core21by changing the position of the air mixing door. The air mixing door controls the temperature of the conditioned air by adjusting the ratio of the warm air to the cooled air according to the opening degree of the air mixing door. Moreover, an air mix chamber is defined in the case, where the cooled air flowing from the evaporator20and the warm air heated with the heater core21are mixed. The temperature of conditioned air is controlled in this space, and the conditioned air can be supplied to the passenger compartment with a proper ratio by controlling each door which opens and closes each blow-off port connected to the passenger compartment.

FIG. 2-FIG. 4show the ventilation unit3of the first embodiment from different orientations. The ventilation unit3includes: a casing312having an air passage through which air flows; a fan311disposed in the casing312; a motor310which provides a driving force to rotate the fan311; and a motor support component313which supports the motor310.

The ventilation unit3further has: an air intake equipment30which takes in at least one of inside air in the passenger compartment and outside air outside of the passenger compartment; and a filter which catches dust when at least one of the outside air and the inside air passes. The fan311draws inside air or outside air through an inside air intake port300and an outside air intake port301defined in the air intake equipment30. The air intake ports are opened and closed by one or plural air intake doors according to an air intake mode. The outside air intake port301communicates with outside, for example, under a vehicle cowl, through a duct. The inside air intake port300is communicated to the passenger compartment at a space under an instrument panel through a duct.

The fan311is, for example, a centrifugal multiblade fan having plural blades arranged annularly around the perimeter. The fan311is arranged inside a spiral casing312, and draws air downward and blows off the air in the centrifugal direction. The upper surface of the casing312has a suction opening for the fan311. The spiral passage formed in the casing312is connected to the duct part23from a predetermined part around the fan311. The suction opening of the casing312, an inner wall surface3131, and an outer wall surface3130are parallel or almost parallel to the ground, in a usual state mounted to the vehicle.

The motor310is disposed so that a part of the motor310is exposed downward from the outer wall surface3130of the motor support component313. The motor310is supported by the motor support component313in the state where the driving shaft extends upward. A boss part which corresponds to the rotation shaft of the fan311is fixed to the driving shaft of the motor310. The motor support component313is a component fixed to the lower surface of the casing312, and the motor310is fixed at the center of the motor support component313. The motor support component313has an external wall part3132around the perimeter part, and the external wall part3132is in contact with the casing312. The motor support component313is fixed to the casing312in the state where the inner wall surface3131communicated to the air passage faces upward and where the outer wall surface3130exposed outside faces downward.

For example, an undercover under an instrument panel is located under the lower part of the motor310exposed to the space behind the instrument panel. The undercover is arranged to cover a part of the exposed motor310from a foot of an occupant.

The external wall part3132of the motor support component313forms an annular wall surrounding the circumference of the inner wall surface3131. The upper end of the external wall part3132is located below the inner wall surface3131, and the outer diameter of the external wall part3132is larger than the outer diameter of the inner wall surface3131. An annular groove portion3133is formed on the inner side of the external wall part3132, and has the bottom surface located lower than the upper end of the external wall part3132. When the motor support component313is fixed to the lower surface of the casing312, the external wall part3132and the annular groove portion3133are fitted into the opening formed in the lower surface of the casing312. Therefore, the external wall part3132and the annular groove portion3133constitute a fitting portion and a wearing portion with respect to the opening of the casing312.

A part of the motor310and the driving shaft of the motor310are projected upward than the inner wall surface3131, and are located in the air passage inside the casing312. Therefore, moisture contained in the air in the air passage, rain or snow taken into the air passage, or the like may fall on the inner wall surface3131. The water fell in this way stays on the inner wall surface3131. When the amount of water becomes larger than a certain quantity, or when the ventilation unit3, i.e., the inner wall surface3131, is inclined relative to the horizontal plane, the water flows to the perimeter side and reaches the annular groove portion3133and the external wall part3132.

The ventilation unit3includes a connector4located below the casing312or the motor support component313, and the connector4includes a connection terminal40in which electric current flows. A cable41prolonged from the connector4is connected to a voltage input unit of the motor310. Therefore, as shown inFIG. 9, the female connector4is engaged with a male connector6to which a cable61is connected to supply electric power from a power source. When the female connector4and the male connector6are connected with each other, the internal connection terminals are connected so that the energizing is possible, and the electric power from the power source is inputted into the motor310.

When the ventilation unit3takes in, for example, outside air, rain, snow, etc. are taken into with the outside air, and humid air flows through the air passage. Water may fall on the inner wall surface3131of the motor support component313. The water may leak outside from a fitting portion between the motor support component313and the casing312. The leaked water easily flows downward due to gravity, and flows along a wall. The water may reach the connector4which is one of electric parts used for supplying electric power to a motor. When the connector4receives water, there is a possibility that the connection terminal40in the energized state inside the connector4may result in a short circuit state due to the water. Then, the ventilation unit3is equipped with the waterproofing structure to be explained below in order to solve such fault.

As shown inFIG. 5-FIG. 9, the ventilation unit3has a first cover wall part52standing to extend in the up-and-down direction (axial direction) and the circumferential direction and to be spaced from the external wall part3132on the outer side in the radial direction. The first cover wall part52is formed integrally with the motor support component313through a connection portion connected with the motor support component313. The first cover wall part52is a tabular wall part which covers the external wall part3132on the outer side in the radial direction, at a predetermined position. As the external wall part3132has a ring shape, the first cover wall part52also has a curved form along the form of the external wall part3132. Therefore, as shown inFIG. 6, in the plane view, the first cover wall part52has the shape corresponding to the shape of the external wall part3132in the circumferential direction.

The ventilation unit3has a groove portion53located below the upper end of the external wall part3132and the upper end of the first cover wall part52. As shown inFIG. 6, the bottom surface of the groove portion53extends in the circumferential direction. The bottom surface of the groove portion53extends in the circumferential direction with the curved state along the shape of the external wall part3132. The groove portion53corresponds to a connection portion which connects the first cover wall part52and the motor support component313.

The ventilation unit3has a cover component5which covers the upper side of the connector4, and the cover component5is formed integrally on the outer side of the first cover wall part52in the radial direction. The cover component5is a tabular portion projected outward from the first cover wall part52in the radial direction, and is projected to be perpendicular or mostly perpendicular to the first cover wall part52. The cover component5is projected from the lower part of the first cover wall part52, and a support component7is attached to a part of the cover component5to support the connector4to be hung. The support component7integrally has an axial part70passing through the cover component5, a head part at one end of the axial part70, an attachment part for the connector4at the other end of the axial part70, and a return part71elastically deformable in the state where the cover component5is interposed between the head part and the return part71. Thus, the connector4is held under the cover component5, and the cover component5works as an umbrella so that water does not directly fall on the connector4even if water falls on the cover component5.

The external wall part3132, the groove portion53, the first cover wall part52, and the cover component5are located in this order from the inner side to the outer side in the radial direction. The external wall part3132and the groove portion53are located on the opposite side of the connector4through the tabular portion of the cover component5in the axial direction.

As shown inFIG. 6andFIG. 7, the length of the groove portion53in the circumferential direction is longer than that of the connector4. Therefore, the width dimension W3that is a length of the connector4in the circumferential direction is set smaller than the width dimension W2of the groove portion53. Furthermore, the both ends of the groove portion53in the circumferential direction, i.e., one end530and the other end531are located outside of the both ends of the connector4in the circumferential direction, respectively.

The length of the first cover wall part52in the circumferential direction is longer than that of the groove portion53, and is longer than that of the connector4. Therefore, the width dimension W1that is a length of the first cover wall part52in the circumferential direction is set larger than the width dimension W2of the groove portion53, and is set larger than the width dimension W3of the connector4. Furthermore, the both ends of the first cover wall part52in the circumferential direction, i.e., one end520and the other end521are located outside of the both ends, i.e., one end530and the other end531of the groove portion53in the circumferential direction, respectively.

The ventilation unit3has second cover wall parts50,51projected outward from the surface of the first cover wall part52. The second cover wall part50,51are two wall parts integrally formed with the cover component5at both ends in the circumferential direction with an interval therebetween. The interval between the second cover wall part50and the second cover wall part51in the circumferential direction is longer than the length of the connector4in the circumferential direction.

The second cover wall part50and the second cover wall part51are formed to be located outside of the both ends of the connector4in the circumferential direction, respectively. That is, the connector4does not exist directly under each of the second cover wall part50and the second cover wall part51. The connector4exists between the lower end500of the second cover wall part50and the lower end510of the second cover wall part51.

As shown inFIG. 6andFIG. 9, the lower end500of the second cover wall part50may desirably be located below the lower end of the first cover wall part52. Similarly, the lower end510of the second cover wall part51may desirably be located below the lower end of the first cover wall part52. According to this positional relationship, the water reaching the groove portion53or the first cover wall part52is easily guided to flow to each lower end500,510of the second cover wall part50,51.

Furthermore preferably, the lower end500of the second cover wall part50is formed to be located downward as approaching the first cover wall part52. Similarly, the lower end510of the second cover wall part51is formed to be located downward as approaching the first cover wall part52. Due to this form, as shown inFIG. 9, the water reaching the second cover wall part50or the second cover wall part51is easily guided to flow to the proximal side near the first cover wall part52, i.e., toward the root end located below the tip end.

Moreover, each upper end of the second cover wall part50,51is formed to be located upward as approaching the first cover wall part52. Especially each upper end of the second cover wall part50,51forms an end surface which is declined downward as extending from the first cover wall part52to the tip end. With this form, the water reaching each upper end of the second cover wall part50,51is easily guided to flow toward the tip end.

As shown inFIG. 8andFIG. 9, each side surface of the second cover wall part50,51presents a tapering shape such that the length in the up-and-down direction becomes shorter as going away from the first cover wall part52. That is, the second cover wall part50,51, as a whole, has a taper shape where the upper end and the lower end are sloped so that the length in the up-and-down direction becomes longer from the distal end to the proximal end.

The interval between the external wall part3132and the first cover wall part52, i.e., the distance between the external wall part3132and the first cover wall part52in the radial direction or the length of the groove portion53in the radial direction is set to a dimension in a manner that water leaked out of the casing312cannot move, due to surface tension, directly from the external wall part3132to the first cover wall part52. That is, the dimension is set to a value such that a predetermined amount of water falls downward out of the ventilation unit3after flowing along the external wall part3132and the groove portion53.

The effect and advantage of the ventilation unit3of this embodiment will be described. The ventilation unit3includes the motor support component313fixed to the lower surface of the casing312to support the motor310, and the connector4installed below the casing312and having the connection terminal40in which electric current flows. The ventilation unit3has: the first cover wall part52which stands to extend in the up-and-down direction and the circumferential direction with an interval on the outer side of the external wall part3132; the groove portion53which connects the first cover wall part52and the motor support component313; and the cover component5which covers the upper side of the connector4. The groove portion53has the bottom surface extending in the circumferential direction and located below the upper end of the external wall part3132and the upper end of the first cover wall part52. The cover component5is integrally formed with the outer side of the first cover wall part52. The groove portion53has the length longer than that of the connector in the circumferential direction. The both ends of the groove portion53in the circumferential direction are located outside of the both ends of the connector4in the circumferential direction, respectively.

The water in the air passage flows downward with gravity along the inner wall surface of the motor support component313. It may be assumed that the water leaks outside through a fitting portion or the other crevices between the motor support component313and the casing312. In contrast, according to the present disclosure, the waterproofing structure can be provided in which the leaked water does not reach the connector4. The water leaked outside of the casing312flows along the external wall part3132of the motor support component313, and flows into the groove portion53located below the upper end of the external wall part3132. Namely, since the first cover wall part52stands to be spaced from the motor support component313, the water flowing along the external wall part3132cannot directly move from the external wall part3132to the first cover wall part52.

The water in the groove portion53falls downward via the both ends of the groove portion53or the first cover wall part52in the circumferential direction, since the water cannot move upward over the upper end of the first cover wall part52that is higher than the groove portion53. That is, the water in the groove portion53flows horizontally to spread to the both ends of the groove portion53in the circumferential direction, and falls due to gravity from a position lower than the upper end of the first cover wall part52. The water which fell in this way does not fall on the connector4, since the both ends of the groove portion53and the first cover wall part52in the circumferential direction are located outside of the both ends of the connector4in the circumferential direction, respectively. In addition, since the cable41is wired to extend from the connector4towards the central part of the casing312, the water does not fall on the cable41. The above-described water drainage course is clearly shown by the arrows inFIG. 6-FIG. 9.

As mentioned above, the water leaked out of the casing312moves in the course not in contact with the connector4, such that the connection terminal40inside the connector4can be prevented from being wet by the leaked water. Therefore, a fault caused by a short circuit between the connection terminals40can be suppressed in the ventilation unit3.

Moreover, the length of the first cover wall part52in the circumferential direction is longer than that of the groove portion53. The both ends of the first cover wall part52in the circumferential direction are located on the outer side of the both ends of the groove portion53in the circumferential direction, respectively.

Accordingly, the water in the groove portion53, for example as shown inFIG. 6, comes to hit on the inner surface of the first cover wall part52and flows in the circumferential direction along the first cover wall part52. Therefore, water flows as a vector spreading horizontally further than the both ends of the groove portion53in the circumferential direction, such that the water can be made to fall further away from the connector4. Thus, the drainage course can be formed such that it is difficult for water to flow toward the cover component5under which the connector4is arranged.

The ventilation unit3further includes the second cover wall part50,51integrally formed at each of the ends of the cover component5in the circumferential direction. The second cover wall part50,51is projected outward from the surface of the first cover wall part52. The second cover wall part50,51is located on the outer side of each end of the connector4in the circumferential direction.

Accordingly, the water in the groove portion53, for example as shown inFIG. 7-FIG. 9, comes to flow downward along the wall surface of each second cover wall part50,51. Therefore, water is guided downward by the second cover wall part50,51, and falls from each lower end500,510of the second cover wall part50,51. Thus, the water falling from the lower end500,510can be dropped under the ventilation unit3without contacting the connector4.

The lower end500,510of the second cover wall part50,51is located below the lower end of the first cover wall part52. Since the lower end500,510is located below the lower end of the first cover wall part52, the water flowing along the second cover wall part50,51can be made to fall from the lower part away from the connector4.

The second cover wall part50,51has the shape in which the lower end500,510is located lower as approaching the first cover wall part52. Since the root side of the lower end500,510adjacent to the first cover wall part52is located lower, the drainage of water can be facilitated along the lower end500,510towards the root end. Thus, since the second cover wall part50,51produces an effect of collecting the drain water, it is easy to form the mainstream of drainage and to raise the drainage speed. Therefore, prompt drainage can be carried out.

The second cover wall part50,51is formed in a manner that the upper end is located upward as approaching the first cover wall part52. In case where water flows along the upper end surface, the drainage of water flowing along the second cover wall part50,51can be promoted away from the first cover wall part52. For example, when the connector4is installed at the central part of the casing312, the drainage of water can be promoted to flow away from the connector4, such that the waterproofness of the connector4can be improved.

The air-conditioner1integrally includes the ventilation unit3and the air-conditioning unit2having air-conditioning components which condition air sent by the ventilation unit3. The ventilation unit3takes in outside air from outside of the passenger compartment of the vehicle, and the air conditioned in the air-conditioning unit2is provided to the passenger compartment.

Accordingly, the water leaked outside of the casing312follows the course not in contact with the connector4finally, such that the connection terminal40inside the connector4can be prevented from being wet by the leaked water. Therefore, in a case where the air-conditioner1is used in severe environments such as snowfall or rain, a fault caused by a short circuit between the connection terminals40can be effectively controlled without increase in cost, for example, caused by a waterproofing structure for a connector.

A ventilation unit of a second embodiment is described with reference toFIG. 10as a modification of the first embodiment. A first cover wall part152of the ventilation unit of the second embodiment is different from that of the ventilation unit3of the first embodiment. Portions not explained in the second embodiment are the same as those in the first embodiment, and points different from the first embodiment are explained.

As shown inFIG. 10, the first cover wall part152is formed so that the upper end of the first cover wall part152is located at a position higher than the upper end of the external wall part3132. Namely, water leaked out of the casing312along the external wall part3132cannot reach the upper surface of the cover component5over the first cover wall part152before reaching a height exceeding the upper end of the first cover wall part152.

According to the second embodiment, as shown inFIG. 10, it is difficult for the water in the groove portion53to move to the upper surface of the cover component5by flowing over the upper end of the first cover wall part152. Therefore, water can be more restricted from falling on the upper surface of the cover component5, thereby reducing a risk where the water contacts the connector4, and can be made to fall further away from the connector4.

Hereinbefore, the preferred embodiments have been described. However, the disclosure is not limited to the embodiments described above and can be realized in various modifications. The structures of the above embodiments are merely exemplary, and technical scopes of the present disclosure are not limited to the disclosed scopes. The technical scope of the present disclosure is represented by the claims, and includes meanings equivalent to those of the claims, and all changes in the scope.

In the above-mentioned embodiment, as an example, water leaks outside from a fitting portion between the motor support component313which supports the motor and the casing312which forms the air passage. The course of water drainage explained in the above-mentioned embodiment is only an example, and is not limited to the example. The water in the air passage may be drained outside through various parts such as the other fitting portion, crevice, and hole.

In the above embodiment, the motor support component313is fixed in the state where the motor support component313is inserted in the opening formed in the lower surface of the casing312. The structure for fixing the motor support component313to the casing312is not limited to this form. For example, in the above-mentioned embodiment, the tip end of the external wall part3132constitutes the upper surface. Alternatively, the motor support component313may be fixed to the casing312in the state where the tip end of the external wall part3132constitutes the lower surface.

Although the fan311of the blower device is a centrifugal fan in the above-mentioned embodiment, the blower device of the present disclosure is not limited to such a fan.

In the above embodiment, the components made of resin such as the fan311, the casing312, and the motor support component313may be molded with resin material containing talc and glass fiber of a predetermined quantity, in order to improve the strength at each part.