Vehicle motor structure

Abstract

To provide a vehicle motor structure that can reduce an amount of foreign material floating in a foot space that enters the interior of a motor.SOLUTION: A vehicle motor structure 110 has a motor 120 that is arranged facing a foot space A of a seat in a vehicle, the motor 120 having a first opening 124 which is formed in an end surface 123a on one side in a rotational axis direction and through which air can pass. The vehicle motor structure 110 further comprises a cover 150 covering the first opening 124 of the motor 120. The cover 150 continuously covers the motor 120 from the first opening 124 through to a lower surface 122a, thus forming a flow channel 151 in which air can pass to / from the motor 120. The cover 150 also has a second opening 152 which is formed in an end part of the flow channel 151 and through which air can pass.SELECTED DRAWING: Figure 4

Description

Technical Field

[0001] The present invention relates to a motor structure for a vehicle.

Background Art

[0002] For example, Patent Document 1 discloses a structure of a fan motor for radiator cooling in a brush-equipped motor including a cylindrical yoke, an end bracket that closes one end of the yoke, a commutator, and a brush. In the end bracket, an air-cooling opening is formed at a position facing the portion where the commutator and the brush are in sliding contact. Further, in this structure, a cylindrical hood that protrudes from the periphery of the air-cooling opening toward the brush side and a cover that closes a part of the opening of the hood are provided at the tip of the hood. Patent Document 1 states that with such a structure, it is possible to prevent the wear powder of the brush from being discharged from the air-cooling opening and flying back to the brush side.

Prior Art Documents

Patent Documents

[0003]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0004] By the way, an air conditioner using a fan motor for radiator cooling as in Patent Document 1 is often arranged between a dash panel and an instrument panel.

[0005] However, in the configuration of Patent Document 1, if such a fan motor is fixed at a position facing the foot space of the occupant or a position communicating with the foot space, there is a possibility that foreign matters such as dust lifted by the getting in and out of the occupant or foot movement cannot be sufficiently prevented from entering the fan motor through the air-cooling opening.

[0006] In view of such problems, an object of the present invention is to provide a motor structure for a vehicle that can reduce the amount of foreign matter that rises in the foot space and enters the interior of the motor.

Means for Solving the Problems

[0007] In order to solve the above problems, a typical configuration of the present invention is a motor disposed facing the foot space of a vehicle seat, the motor having a first opening formed in an end face on one side in the rotational axis direction through which air can pass. In the motor structure for a vehicle, the motor structure for a vehicle further includes a cover that covers the first opening of the motor, and the cover forms a flow path through which air can pass between the motor by continuously covering the motor from the first opening to the lower surface, and forms a second opening through which air can pass at an end of the flow path.

Effects of the Invention

[0008] According to the present invention, the amount of foreign matter that rises in the foot space and enters the interior of the motor can be reduced.

Brief Description of the Drawings

[0009]

Figure 1

Figure 2

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Figure 8

DETAILED DESCRIPTION OF THE INVENTION

[0010] One embodiment of the present invention is a motor structure for a vehicle, which is disposed facing the foot space of a vehicle seat and includes a motor having a first opening formed in an end surface on one side in the direction of the rotation axis and through which air can pass. In this vehicle motor structure, the vehicle motor structure further includes a cover that covers the first opening of the motor, and the cover forms a flow path through which air can pass between the cover and the motor by continuously covering the motor from the first opening to the lower surface, and forms a second opening through which air can pass at an end of the flow path.

[0011] According to the present invention, the cover covers the first opening and has a second opening on the lower surface of the motor. Therefore, the area in front of the second opening is occupied by the motor on the upper side. Thus, the area through which air can pass in front of the second opening is narrower than the area through which air can pass in front of the first opening in the absence of the cover. From this, the amount of foreign matter that rises in the foot space and enters the inside of the motor can be reduced.

[0012] The motor further has a base end portion that extends radially wider than the end surface from a position away from the end surface on the other side in the direction of the rotation axis, and the second opening may be separated from the base end portion by a predetermined distance on one side in the direction of the rotation axis.

[0013] According to the above configuration, the second opening is separated from the base end portion on one side in the direction of the rotation axis. Therefore, the base end portion faces in front of the second opening. Thus, the area in front of the second opening is narrower in the direction of the rotation axis than when there is no base end portion. As a result, the amount of foreign matter that enters the second opening can be reduced.

[0014] Also, according to the above configuration, the second opening is separated from the base end portion by a predetermined distance. Therefore, it is possible to prevent foreign matter from getting caught between the base end portion and the second opening. Thus, the foreign matter is likely to fall after hitting the lower surface of the motor between the base end portion and the second opening. As a result, the amount of foreign matter that enters the second opening can be reduced.

[0015] A recess may be formed at the boundary between the end face and the lower face of the motor.

[0016] According to the above configuration, foreign matter is likely to accumulate in the recess after passing through the flow path in the direction of the rotation axis. As a result, the amount of foreign matter entering the first opening can be reduced.

[0017] The first opening is formed at the lower part of the end face of the motor, and the cover further has an upper wall located at the upper end of the flow path, and the upper wall may be disposed above the first opening.

[0018] According to the above configuration, the cover has an upper wall located above the first opening. For this reason, a part of the foreign matter hits the upper wall with the momentum of rising in the flow path before entering the first opening, the speed is reduced, and it is likely to fall after hitting the upper wall. As a result, the amount of foreign matter entering the first opening can be further reduced. If the upper wall is below the first opening, even if the foreign matter hits the upper wall, it is highly likely to enter the first opening without sufficiently reducing the speed. Further, according to the above configuration, the first opening is formed at the lower part of the end face of the motor, and the cover covers the first opening at such a position. Therefore, the flow path of the cover can be set short.

[0019] The cover further has an end face contact portion that covers a region of the end face of the motor other than the region covered by the flow path, and an outer peripheral face contact portion that covers a region of the outer peripheral face of the motor other than the range where the flow path extends along the lower face of the motor, and the flow path may bulge more than the end face contact portion and the outer peripheral face contact portion.

[0020] According to the above configuration, the portion where the cover bulges more than the end face contact portion and the outer peripheral face contact portion becomes the flow path. For this reason, the flow path is not provided on the motor side. As a result, the flow path can be formed without causing an increase in the cost of the motor.

[0021] At least one of the lower face and the end face of the motor may be recessed so as to expand the flow path.

[0022] According to the above configuration, the recessed part of the motor serves as a flow path. Therefore, the molding of the cover is simplified.

[0023] The above flow path may be inclined upward as it approaches the end face of the motor from the second opening side.

[0024] According to the above configuration, since foreign matter has to climb the floor surface when moving from the second opening side to the end face of the motor, the amount reaching the first opening can be reduced. Also, since the second opening side is wider than the inside of the flow path, it is possible to make it difficult for foreign matter to reach the end face of the motor.

[0025] (First Embodiment) Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. Dimensions, materials, and other specific numerical values shown in such embodiments are merely examples for facilitating understanding of the invention, and do not limit the present invention unless otherwise specified. In the present specification and drawings, elements having substantially the same function and configuration are denoted by the same reference numerals to omit redundant description, and elements not directly related to the present invention are not shown.

[0026] FIG. 1 is a side view of a vehicle structure 100 to which a vehicle motor structure 110 according to a first embodiment of the present invention is applied. In FIG. 1 and all other drawings, the vehicle front-rear direction is indicated by arrows F (Forward) and B (Backward), the left and right in the vehicle width direction are indicated by arrows L (Leftward) and R (Rightward), and the up-down direction is indicated by arrows U (upward) and D (downward), respectively.

[0027] The vehicle structure 100 shown in FIG. 1 is, for example, the structure of a light truck, and includes a dash panel 101, an instrument panel 102, a brake 103, and a vehicle cooling structure 105 disposed above the brake 103 between the dash panel 101 and the instrument panel 102.

[0028] The vehicle cooling structure 105 has a vehicle motor structure 110. The vehicle motor structure 110 is arranged facing the foot space A under the seat of the vehicle. The foot space A is the space under the feet of the driver's seat of the occupant. The foot space A is between the dash panel 101 and the instrument panel 102, and is the space between the upper end of the instrument panel 102 and the brake 103, and is the space where the occupant can put their feet. Also, the foot space A is directly above the brake 103 and can also be expressed as the space where the occupant can put their feet.

[0029] Figure 2 is a perspective view of the vehicle motor structure 110 in Figure 1. Figure 3 is an exploded perspective view of the vehicle motor structure 110 in Figure 2. As shown in Figure 2, the vehicle motor structure 110 includes a motor 120 and a cover 150. As shown in Figure 3, the cover 150 is configured separately from the motor 120. And the cover 150 is attached to the motor 120 so as to change from the state in Figure 3 to the state in Figure 2.

[0030] Figure 4 is a cross-sectional view taken along the line A-A of the vehicle motor structure 110 in Figure 1. As shown in Figure 4, the motor 120 of the vehicle motor structure 110 has a cylindrical portion 122, a tip portion 123 formed continuously at one end of the cylindrical portion 122, and a base end portion 127 formed continuously at the other end of the cylindrical portion 122.

[0031] Regarding the circumferential surface of the cylindrical portion 122, in the following description, the surface located below the rotation center line J is called the lower surface 122a, and the surface located above the rotation center line J is called the upper surface 122b. The tip portion 123 is formed so as to close one side of the cylindrical portion 122. The tip portion 123 is called the end face 123a in the following description for the surface facing outward.

[0032] The end face 123a is disposed on one side in the rotational axis direction relative to the brush 138. A first opening 124 through which air can pass is formed in the lower part of the end face 123a (for example, a portion below the rotational center line J of the rotational axis 133). The first opening 124 has four first openings 124a to 124d arranged in the vehicle front-rear direction (see FIG. 3). Note that the number of the first openings 124 may be other than four. Since the end face 123a is disposed outside the rotational axis direction of the brush 138 (contact portion) described later, the end face 123a and the brush 138 are close to each other, and the first opening 124 of the end face 123a and the brush 138 are close to each other. For this reason, when the brush 138 holds heat, when air enters the cylindrical portion 122 from the first opening 124, the air cools the brush 138.

[0033] The motor 120 has a recess 126 at the boundary between the end face 123a and the lower face 122a. The recess 126 is such that the periphery of the tip portion 123 is recessed rearward of the vehicle and one edge of the cylindrical portion 122 is recessed in the direction of the rotational axis 133 (see FIG. 3). Note that the recess 126 may be formed only on the lower face 122a of the cylindrical portion 122 and not formed on the upper face 122b.

[0034] The base end portion 127 extends in the radial direction (axis orthogonal direction orthogonal to the rotational axis 133) from a position separated from the end face 123a on the other side in the rotational axis direction and is wider than the end face 123a.

[0035] The motor 120 also includes a housing 131 disposed inside the cylindrical portion 122, a bearing 132 attached to the housing 131, and a rotational axis 133 rotatably attached to the bearing 132.

[0036] The motor 120 further includes a rotor 134 fixed to the rotational axis 133, a stator 135 fixed to the housing 131 and facing the outer periphery of the rotor 134, a commutator 136 attached to the end portion of the rotational axis 133, and a brush 138 fixed to the tip portion 123 by a fixing portion 137. The brush 138 is in contact with the peripheral surface of a commutator 136 (component) attached to the end portion of the rotational axis 133.

[0037] In this embodiment, the brush 138 as the sliding contact portion is configured to be in sliding contact with the commutator 136, but it may not be limited to this configuration. For example, the brush 138 as the sliding contact portion may be configured to be in direct sliding contact with the rotating shaft 133. This is because there is also a technique for ensuring the radio noise reduction performance by directly sliding the brush 138 on the rotating shaft 133. Further, in this embodiment, the configuration includes the brush 138, but it may also be a configuration without the brush 138. This is because it is also possible to apply the configuration of the cover 150 described later to the brushless motor.

[0038] The motor 120 also has a connector attachment portion 140. The connector attachment portion 140 is a portion for inserting a connector at the end of a harness (not shown), and protrudes cylindrically rightward in the vehicle width direction from the base end portion 127. The connector attachment portion 140 has a connector insertion portion 141 and a convex portion 142 (see FIGS. 2 and 3). Further, the connector attachment portion 140 is disposed at an interval above the upper surface 122b of the cylindrical portion 122.

[0039] The cover 150 continuously covers the motor 120 from its first opening 124 to the lower surface 122a. The cover 150 forms a flow path 151 between itself and the motor 120. Further, when the flow path 151 is formed, a second opening 152 located at one end of the flow path 151 is formed. The cover 150 is formed of resin or the like.

[0040] The flow path 151 is a passage through which air can pass and is formed between the cover 150 and the motor 120 by continuously covering the motor 120 from the first opening 124 at the end face 123a of the motor 120 to the lower surface 122a. In this embodiment, the flow path 151 is formed by the cover 150, the tip portion 123, and the cylindrical portion 122. Note that the configuration is not limited to this, and a configuration in which the cover 150 alone forms the flow path 151 is also possible.

[0041] The second opening 152 is an opening formed at the end of the flow path 151 through which air can pass. The second opening 152 is separated from the base end portion 127 by a predetermined distance X on one side in the rotational axis direction. In this embodiment, the second opening 152 is formed by the cover 150 and the cylindrical portion 122. Note that the present invention is not limited to this configuration, and a configuration in which the cover 150 alone forms the second opening 152 is also possible.

[0042] Further, as shown in FIG. 2, the cover 150 has an end face contact portion 150a, an end face flow path wall portion 150b, an outer peripheral face contact portion 150c, and an outer peripheral face flow path wall portion 150d. The end face contact portion 150a covers a region of the end face 123a of the motor 120 other than the region covered by the flow path 151 (see FIG. 4). The end face flow path wall portion 150b is a part of the flow path 151 and refers to a portion that extends upward from the bending position 150m of the flow path 151.

[0043] The outer peripheral face contact portion 150c covers a region of the outer peripheral face of the motor 120 other than the range in which the flow path 151 extends along the lower face 122a of the motor 120. The outer peripheral face flow path wall portion 150d is a part of the flow path 151 and is a portion that extends rearward of the vehicle from the bending position 150m of the flow path 151.

[0044] The flow path 151 (the end face flow path wall portion 150b and the outer peripheral face flow path wall portion 150d) bulges more than the end face contact portion 150a and the outer peripheral face contact portion 150c.

[0045] Further, as shown in FIGS. 2 and 3, the cover 150 has a mounting frame 150e. The mounting frame 150e has a first clamping portion 150e1 and a second clamping portion 150e2 whose distance in the vehicle front-rear direction is narrower than that of the first clamping portion 150e1. The lower end of the first clamping portion 150e1 is connected to the upper end of the outer peripheral face contact portion 150c. The first clamping portion 150e1 clamps the connector insertion portion 141, and the second clamping portion 150e2 clamps the convex portion 142. With this configuration, even if the outer peripheral face contact portion 150c and the outer peripheral face flow path wall portion 150d come off from the cylindrical portion 122, the mounting frame 150e is caught by the connector mounting portion 140 so that the cover 150 does not fall to the feet of the occupant.

[0046] Note that, as shown in FIG. 4, fins 160 are rotatably attached to the motor 120, and in this embodiment, a blower motor is configured.

[0047] FIG. 5 is a partially enlarged cross-sectional view of the vehicle motor structure 110 of FIG. 4. The cover 150 has an upper wall 153 located at the upper end of the flow path 151, as shown in FIG. 5. The upper wall 153 is disposed above the first opening 124.

[0048] Next, the operation of the vehicle motor structure 110 will be described with reference to FIG. 5. When the motor 120 is driven, the commutator 136 and the brush 138 are in sliding contact. Then, the temperature of the brush 138 rises.

[0049] On the other hand, when foreign matter C outside the motor 120 flutters around the feet of the occupant, it hits the lower surface 122a of the cylindrical portion 122 and falls downward as shown by the arrow L1. Also, large foreign matter C falls downward as shown by the arrow L2 without passing through the second opening 152. The remaining foreign matter C enters through the second opening 152 and passes through the flow path 151.

[0050] Then, a part of the foreign matter C in the flow path 151 is caught by the depression 126 in the flow path 151 as shown by the arrow N1. The remaining foreign matter C goes against gravity and heads toward the first opening 124 together with the air. A part of the foreign matter C therein hits the upper wall 153 and falls downward as shown by the arrow N2 before reaching the first opening 124. In this way, the foreign matter C is blocked in two stages by the depression 126 and the upper wall 153, and the amount is reduced. The foreign matter C enters the motor 120 through the first opening 124 together with the air. Then, the air reduces the temperature of the brush 138.

[0051] According to the configuration of the foregoing embodiment, the cover 150 covers the first opening 124 and has a second opening 152 in the lower surface 122a of the motor 120. Therefore, the area in front of the second opening 152 is occupied by the motor 120 on the upper side. Accordingly, the area through which air can pass in front of the second opening 152 is narrower than the area through which air can pass in front of the first opening 124 in the state where the cover 150 is not present. From this, the amount of foreign matter C that rises in the foot space A and enters the inside of the motor 120 can be reduced. Note that the foreign matter C may include not only dust but also leaves, sand, and the like. Further, it is possible to prevent the motor 120 from stopping due to the foreign matter C being caught between components in the motor 120 (for example, between the commutator 136 and the brush 138), or a problem of heat generation due to a short circuit occurring in the motor 120.

[0052] The second opening 152 is separated from the base end portion 127 toward one side in the rotation axis direction. Therefore, the base end portion 127 faces in front of the second opening 152. Accordingly, the area in front of the second opening 152 is narrower in the rotation axis direction than in the case where the base end portion 127 is not present. As a result, the amount of foreign matter C that enters the second opening 152 can be reduced.

[0053] Further, the second opening 152 is separated from the base end portion 127 by a predetermined interval. Therefore, it is possible to prevent the foreign matter C from being caught between the base end portion 127 and the second opening 152. Accordingly, the foreign matter C is likely to fall after hitting the lower surface 122a of the motor 120 between the base end portion 127 and the second opening 152. As a result, the amount of foreign matter C that enters the second opening 152 can be reduced.

[0054] A recess 126 is formed at the boundary between the end surface 123a and the lower surface 122a of the motor 120. Therefore, the foreign matter C is likely to accumulate in the recess 126 after passing through the flow path 151 in the rotation axis direction. As a result, the amount of foreign matter C that enters the first opening 124 can be reduced.

[0055] The cover 150 has an upper wall 153 that is located above the first opening 124. For this reason, a part of the foreign matter C hits the upper wall 153 while still having the momentum to rise in the flow path 151 before entering the first opening 124, reducing its speed and being likely to fall after hitting the upper wall 153. As a result, the amount of foreign matter C entering the first opening 124 can be further reduced. If the upper wall 153 were below the first opening 124, the foreign matter C would likely enter the first opening 124 without sufficiently reducing its speed even if it hits the upper wall 153.

[0056] Also, the first opening 124 is formed below the end face 123a of the motor 120, and the cover 150 covers the first opening 124 at such a position. For this reason, the flow path 151 of the cover 150 can be set short.

[0057] The portion where the cover 150 bulges more than the end face contact portion 150a and the outer peripheral surface contact portion 150c becomes the flow path 151. For this reason, the flow path 151 is not provided on the motor 120 side. As a result, the flow path 151 can be formed without causing an increase in the cost of the motor 120.

[0058] The flow path 151 is formed on the cover 150 side that can be molded with resin or the like, rather than on the end face 123a of the motor 120 formed of a high-rigidity member such as aluminum. Therefore, the flow path 151 can be formed at low cost. Also, since the flow path 151 is formed by bulging the cover 150, the thickness of the portion other than the flow path 151 can be made thin, and buffering between the cover 150 and its peripheral members can be suppressed.

[0059] The portion where the cover 150 bulges more than the end face contact portion 150a and the outer peripheral surface contact portion 150c becomes the flow path. For this reason, the flow path 151 is not provided on the motor 120 side. As a result, the flow path can be formed without causing an increase in the cost of the motor 120.

[0060] (Second Embodiment) FIG. 6 is a cross-sectional view of a vehicle motor structure 210 according to a second embodiment of the present invention and corresponds to the cross-sectional view of FIG. 5. In the second embodiment, it is different from the configuration of the first embodiment in that it is inclined upward as it approaches the end face 123a of the motor 120 from the second opening 152 side. According to such a configuration, since the foreign object C has to climb the floor surface 151a when moving from the second opening 152 side to the end face 123a of the motor 120, the amount of the foreign object C reaching the first opening 124 can be reduced. Further, since the second opening 152 is formed wider than the first opening 124 in the flow path 151, it is possible to make it difficult for the foreign object C to reach the end face 123a of the motor 120.

[0061] (Third Embodiment) FIG. 7 is an exploded perspective view of a vehicle motor structure 310 according to a third embodiment of the present invention. As shown in FIG. 7, in the vehicle motor structure 310, the lower surface of the motor 220 is recessed so as to expand the flow path 151, which is different from the lower surface 122a of the first embodiment. That is, an upward recess 161 is formed below the cylindrical portion 122 of the motor 220 so as to be recessed upward. Further, in the vehicle motor structure 310, the lower part of the cover 250 is formed in a cylindrical shape continuously with the outer peripheral surface contact portion 150c, which is different from the outer peripheral surface flow path wall portion 150d of the first embodiment.

[0062] In a state where the cover 250 is attached to the motor 220, the lower part of the cover 250 and the upward recess 161 of the motor 220 form a part of the flow path 151. Further, in a state where the cover 250 is attached to the motor 220, the end face flow path wall portion 150b of the cover 250 and the tip portion 123 of the motor 220 form a part of the flow path 151. Thereby, the flow path 151 is formed. Further, at the left end in the vehicle width direction of the lower part 162 of the cover 250, a second opening is formed by the lower part 162 of the cover 250 and the upward recess 161 of the motor 220. With this configuration, the recessed portion of the motor 220 serves as a flow path, and the molding of the cover 250 is simplified compared to the first embodiment. Note that, similar to the first embodiment, a depression 126 may be provided below the tip portion 123.

[0063] (Fourth Embodiment) FIG. 8 is an exploded perspective view of a vehicle motor structure 410 according to a fourth embodiment of the present invention. As shown in FIG. 8, in the vehicle motor structure 410, the tip portion 323 is recessed so as to expand the flow path 151, unlike the tip portion 123 of the third embodiment. That is, on the tip portion 323 of the motor 320, a leftward recess 323f (recess in the other direction) recessed toward the left side in the vehicle width direction (the other side in the vehicle width direction) is formed. First openings 124a to 124d are formed in this leftward recess 323f. Further, in the vehicle motor structure 410, the end face of the cover 350 is composed of a top face portion 350a in which the substantially end face contact portion 150a is continuously formed flush, unlike the end face flow path wall portion 150b of the third embodiment.

[0064] In a state where the cover 350 is attached to the motor 320, similar to the third embodiment, the lower part of the cover 350 and the upward recess 161 of the motor 320 form a part of the flow path 151. Different from the third embodiment, the top face portion 350a of the cover 350 and the leftward recess 323f of the motor 320 form a part of the flow path 151. Thus, the flow path 151 is formed. Further, at the left end in the vehicle width direction of the lower part 162 of the cover 350, a second opening is formed by the lower part 162 of the cover 350 and the upward recess 161 of the motor 320. With this configuration, the recessed portion of the motor 320 serves as a flow path, and the molding of the cover 350 is simplified compared to the first embodiment. Note that, similar to the first embodiment, a depression 126 may be provided below the tip portion 323.

[0065] (Modification) Further, as a modification of the present invention, a vehicle motor structure may be configured by the motor 320 of the fourth embodiment and the cover 150 of the first embodiment. In this case, the flow path 151 is formed in a region including between the upward recess 161 of the motor 320 and the outer peripheral surface flow path wall portion 150d of the cover 150, and between the leftward recess 323f of the motor 320 and the end face flow path wall portion 150b of the cover 150. Further, at the left end in the vehicle width direction of the lower part of the cover 150, a second opening is formed between the upward recess 161 of the motor 320 and the outer peripheral surface flow path wall portion 150d of the cover 150.

[0066] The preferred embodiments of the present invention have been described above with reference to the accompanying drawings. Needless to say, the present invention is not limited to such examples. It is obvious that those skilled in the art can conceive of various modification examples or correction examples within the scope described in the claims, and it is naturally understood that they also belong to the technical scope of the present invention.

[0067] In addition, the present invention can be freely combined and implemented with the inventions described in the claims and embodiments regardless of the dependency relationship of the claims.

Industrial Applicability

[0068] The present invention can be used for a vehicle motor structure.

Explanation of Reference Numerals

[0069] 101... Dash panel, 102... Instrument panel, 103... Brake, 105... Vehicle cooling structure, 110... Vehicle motor structure, 120... Motor, 122... Cylindrical portion, 122a... Lower surface, 122b... Upper surface, 123... Tip portion, 123a... End face, 124... First opening, 124a - 124d... First opening, 126... Depression, 127... Base end portion, 131... Housing, 132... Bearing, 133... Rotating shaft, 134... Rotor, 135... Stator, 136... Commutator, 137... Fixed portion, 138... Brush, 140... Connector mounting portion, 141... Connector insertion portion, 142... Protrusion, 150... Cover, 150a... End face contact portion, 150b... End face flow path wall portion, 150c... Outer peripheral surface contact portion, 150d... Outer peripheral surface flow path wall portion, 150e... Mounting frame, 150e1... Clamping portion, 150e2... Clamping portion, 150m... Bending position, 151... Flow path, 151a... Floor surface, 152... Second opening, 153... Upper wall, 161... Upward recess, 162... Lower portion, 220... Motor, 250... Cover, 310... Vehicle motor structure, 320... Motor, 323... Tip portion, 323f... Leftward recess, 350... Cover, 350a... Top surface, 410... Vehicle motor structure, A... Foot space, C... Foreign matter, J... Rotation center line, X... Interval

Claims

1. A vehicle motor structure including a motor disposed facing the foot space of a vehicle seat, the motor having a first opening formed in an end face on one side in the direction of the rotation axis and through which air can pass, wherein the vehicle motor structure further comprises: a cover covering the first opening of the motor; the cover: forms a flow path through which air can pass between the cover and the motor by continuously covering the motor from the first opening to the lower surface; and forms a second opening at an end of the flow path through which air can pass. A vehicle motor structure characterized by this.

2. The motor further has a base end portion that extends radially wider than the end face from a position away from the end face toward the other side in the direction of the rotation axis; The vehicle motor structure according to claim 1, wherein the second opening is spaced a predetermined distance from the base end portion toward one side in the direction of the rotation axis.

3. The vehicle motor structure according to claim 1 or 2, wherein a depression is formed at a boundary between the end face and the lower surface of the motor.

4. The first opening is formed at a lower portion of the end face of the motor; The cover further has an upper wall located at an upper end of the flow path; The vehicle motor structure according to claim 3, wherein the upper wall is disposed above the first opening.

5. The cover further comprises: an end face contact portion covering a region of the end face of the motor other than the region covered by the flow path; and an outer peripheral surface contact portion covering a region of the outer peripheral surface of the motor other than the range in which the flow path extends along the lower surface of the motor; The vehicle motor structure according to claim 1 or 2, wherein the flow path bulges more than the end face contact portion and the outer peripheral surface contact portion.

6. The vehicle motor structure according to claim 1 or 2, wherein at least one of the lower surface and the end face of the motor is recessed so as to expand the flow path.

7. The vehicle motor structure according to claim 1 or 2, wherein the flow path is inclined so as to rise as it approaches the end face of the motor from the second opening side.

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