JP2011011739A - Assembly formed from motor supporting member and receptacle ring - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an assembly in which an electric fan unit including a motor supporting member is arranged onto a volute having this type of ring in such a way that a selective operation for fixing/removing it can be diversified and the assembly is formed by the motor supporting member and receptacle ring thereof.SOLUTION: The assembly is constituted of a blower 6 of a ventilation, heating and/or cooling facility 1. This assembly is formed by a motor supporting member 13 for accepting a motor 9 and a ring 41 for receiving the motor supporting member. The motor supporting member is provided with at least one soft seal lip 20 that can be deformed when the motor supporting member passes into the ring.

Description

  The present invention belongs to the field of ventilation / heating and / or cooling equipment installed in automobiles. The present invention is directed to an assembly formed from a motor support and a receiving ring of the motor support. Moreover, this invention also makes object the electric fan unit comprised from the motor support part, the motor, and the turbine rotated by a motor. Furthermore, the invention is also directed to a volute comprising such a ring. Furthermore, the present invention is also directed to a blower including this type of electric fan unit and this type of volute. Finally, the present invention is also directed to a method for attaching and removing such assemblies.

  Automobiles are usually equipped with ventilation / heating and / or cooling equipment to change the aerodynamic parameters of the cabin air. This change is made by releasing an air flow into the passenger compartment. This facility mainly consists of a plastic case housed under the vehicle dashboard. This facility includes at least one air flow inlet to the inside of the case and at least one air flow outlet from the case to the passenger compartment. This facility is equipped with a blower for creating a flow of air and flowing it from the inlet to the outlet.

  The blower includes a volute, and an electric fan unit is fitted into the volute. This electric fan unit is mainly composed of a turbine, a motor capable of moving the turbine inside the volute, and a motor support. The motor support portion is composed of parts made of plastic material, and a motor that supports the turbine is fixed on the plastic material parts. When the turbine operates, an air flow is generated.

  The volute is composed of a housing having an air inlet and an air outlet, through which air flow is sucked into the housing and through the outlet, air flow is out of the housing. Discharged. The housing includes an intake wall through which an air inlet is provided, an exhaust wall through which an air outlet is provided, and a receiving wall for the electric fan unit. The receiving wall includes an opening that is closed by the electric fan unit when the electric fan unit is fitted onto the volute. Usually, the intake wall and the receiving wall are opposed to each other and are connected to each other through an exhaust wall. The exhaust wall has, for example, a spiral shape or a spiral shape.

  In order to combine the electric fan unit and the volute, the motor support portion and the volute are provided with a fixed cooperating member by fitting.

  Usually, the designer of this type of blower pre-selects whether the electric fan unit is to be mounted from inside or outside the volute.

  In the first case, the electric fan unit is inserted into the volute via the air inlet until the motor support hits the volute, and then the electric fan unit rotates by a quarter of a turn inside the volute. The members fit together.

  In the second case, the electric fan unit is inserted into the volute via the opening until the motor support hits the volute, and then the cooperating members are fitted together.

  The removal work between the electric fan unit and the volute in the above two cases includes the same stage as the attachment work, but the directions are opposite. In other words, the attachment and removal includes movement of the electric fan unit along one direction but in the opposite direction. After all, these movements are reciprocations of the electric fan unit.

  This type of scheme is inflexible and has the limitation that the fan can only be installed and removed according to one of the options presented. In fact, when it is necessary to remove the electric fan unit on the volute during the maintenance work, the space that becomes the path of the unit must be vacant when the electric fan unit is installed on the volute. However, this space is often closed by the steering column of the vehicle after the electric fan unit is installed. As a result, many operations are required to remove the electric fan unit, but this takes time and causes damage to each part. On the other hand, designers want this type of blower to be suitable for both right-handed and left-handed vehicles, that is, the vehicle's steering column is either facing the opening or the air inlet It can be adapted to vehicles. Therefore, it can be concluded that the use of this type of blower is not possible within the various constraints described above.

  A first object of the present invention is to propose an assembly formed from a motor support for receiving a motor and a receiving ring of the motor support, the assembly comprising ventilation / heating and / or cooling. While constituting the blower of the facility, the electric fan unit including the motor support portion is arranged so as to diversify the options for mounting and removing the electric fan unit on the volute having this kind of ring. Another object of the present invention is to propose an electric fan unit including this type of motor support. Yet another object is to propose a volute with such a ring. Yet another object is to propose a blower including said volute capable of receiving this type of electric fan unit. The final objective is to propose a method for mounting and / or removing this type of electric fan unit on the volute.

  The assembly of the present invention is an assembly constituting a blower for ventilation / heating and / or cooling equipment. The assembly is formed from a motor support for receiving the motor and a ring for receiving the motor support. The motor support portion includes at least one soft seal lip that is deformable when the motor support portion passes through the ring.

Advantageously, the diameter D of the motor support is smaller than the diameter D ′ of the ring.
The soft seal lip is preferably provided on the outer surface of the crown included in the motor support.
The soft seal lip is provided at the edge of the outer surface.
The soft seal lip is preferably overmolded on the crown.
The soft seal lip is made of, for example, an elastomer type material.

  The outer surface advantageously comprises a first fitting member for cooperating with a second fitting member provided on the ring inner surface.

The first fitting member preferably includes a groove provided along the radial surface P of the crown.

  The groove advantageously comprises at least one orifice that allows passage of the fingers constituting the second fitting member.

The groove preferably includes two orifice portions that are opposed to the center of symmetry of the groove and provided in the radial plane P.

  The groove advantageously comprises a receiving recess for the finger.

The groove is bounded by two edges that are symmetrical with respect to each other about the radial plane P.

  Preferably, the at least one edge comprises at least one first stopper for abutting at least one second stopper provided on the inner surface of the ring.

  The electric fan unit of the present invention includes a motor, a turbine, and this type of motor support.

  The volute of the present invention includes this type of ring.

  The blower of the present invention is a blower for ventilation / heating and / or cooling equipment including this type of volute and this type of electric fan unit.

  This type of assembly attachment and removal method is mainly characterized by including an attachment step performed in the same direction along one direction and a removal step.

  The present invention can be better understood by reading the description of the embodiments in conjunction with the accompanying drawings shown below.

It is a schematic sectional drawing of the ventilation / heating and / or cooling equipment which accommodates the air blower by this invention. It is the schematic which shows the step of the attachment method of the electric fan unit which comprises the air blower shown in FIG. 1, and a volute. It is the schematic which shows the step of the attachment method of the electric fan unit which comprises the air blower shown in FIG. 1, and a volute. It is the schematic which shows the step of the removal method of the electric fan unit which comprises the air blower shown in FIG. 1, and a volute. It is the schematic which shows the step of the removal method of the electric fan unit which comprises the air blower shown in FIG. 1, and a volute. It is the partial cross section schematic of the motor support part and volute which comprise the air blower shown in FIG. It is the partial cross section schematic of the motor support part and volute which comprise the air blower shown in FIG. It is the partial cross section schematic of the motor support part and volute which comprise the air blower shown in FIG. It is the partial cross section schematic of the motor support part and volute which comprise the air blower shown in FIG. FIG. 10 is a schematic perspective view of the motor support shown in FIGS. 6 to 9. FIG. 11 is a perspective view of an assembly according to the present invention formed from the motor support shown in FIG. 10 and a receiving ring of the motor support. It is the schematic of the 1st fitting member with which the motor support part shown in FIG. 10 is provided. It is the schematic of the 2nd fitting member with which the ring shown in FIG. 11 is provided. It is the schematic which shows the step of attachment / detachment on the ring of a motor support part. It is the schematic which shows the step of attachment / detachment on the ring of a motor support part. It is the schematic which shows the step of attachment / detachment on the ring of a motor support part. It is the schematic which shows the step of attachment / detachment on the ring of a motor support part. It is the schematic which shows the step of attachment / detachment on the ring of a motor support part. It is the schematic which shows the step of attachment / detachment on the ring of a motor support part. It is the schematic which shows the step of attachment / detachment on the ring of a motor support part. It is the schematic which shows the step of attachment / detachment on the ring of a motor support part.

  In FIG. 1, the automobile is equipped with ventilation / heating and / or cooling equipment 1 for changing the aerodynamic parameters of the cabin air. This equipment 1 is mainly constituted by a case 2 made of plastic material arranged under a dashboard of a vehicle. The case 2 includes at least one air inlet 3, and an air flow 4 enters the inside of the case 2 through the air inlet. Similarly, the case 2 is provided with at least one air discharge port 5, and an air flow 4 is discharged from the case 2 to the vehicle compartment through this discharge port.

  In order to generate the air flow 4 and to circulate it inside the case 2, a blower 6 such as a radial blower is accommodated in the case. The blower 6 has a spiral body, that is, a volute 7, and at least one turbine 8 is rotated by an electric motor 9 inside the volute. The turbine 8 is, for example, a cylindrical turbine, and may be an open casing or a closed casing. The volute 7 is made of a plastic casing having an air inlet 10 and an air outlet 11. Inside the volute 7, the operation of the turbine 8 by the motor 9 causes the air flow 4 to circulate from the air inlet 10 to the air outlet 11. The housing is hermetically sealed so that the air flow 4 is not lost and flows from the air inlet 10 to the air outlet 11.

  The motor 9 and the turbine 8 are connected to each other via a rotating shaft 12 in the motor 9. The motor support 13 receives the motor 9 by fitting or any other similar attachment means. The motor support portion 13 is made of a plastic material. The turbine 8, the motor 9, and the motor support portion 13 are integrated to form an electric fan unit 14 that is fitted on the volute 7 via the motor support portion 13.

  More specifically, the volute 7 includes a receiving ring 41 of the motor support portion 13. The ring 41 is a ring attached on the volute 7 by fitting or overmolding, for example. In this case, the ring 41 and the volute 7 are made of different materials. The ring 41 also forms, for example, a unitary casting assembly of a single material with the volute 7 and constitutes the volute 7.

  The motor support 13 and the ring 41 constitute an assembly that enables mechanical connection between the volute 7 and the electric fan unit 14. The assembly makes it possible to integrally fix the motor support 13 and the ring 41 to each other, that is, to form the blower 6 by combining the volute 7 and the electric fan unit 14.

  The volute 7 defines the boundary of the inner space 15 that houses the electric fan unit 14 when the blower 6 is attached. More specifically, the inner space 15 is demarcated by an intake wall 16 through which the air inlet 10 passes and an exhaust wall 17 through which the air outlet 11 passes. The intake wall 16 is disposed opposite to the receiving wall 18, and the motor support portion 13 is fitted on the receiving wall. At the mounting position of the blower 6, the rotating shaft 12 of the turbine 8 extends substantially perpendicular to the intake wall 16 and the receiving wall 18.

  When the blower 6 is attached, the components of the electric fan unit 14 are assembled with each other, and then the whole is fitted on the ring 41. When a failure occurs in the turbine 8 and / or the motor 9, it is desirable that the failed electric fan unit 14 can be quickly and easily removed from the ring 41 and replaced with the replacement electric fan unit 14.

  According to the configuration of the present invention, the electric fan unit 14 can be fitted onto the ring 41 from the inside of the volute 7 (FIG. 2) or from the outside of the volute 7 (FIG. 3). Further, according to the configuration of the present invention, the electric fan unit 14 can be detached from the ring 41 either from the inside of the volute 7 (FIG. 4) or from the outside of the volute 7 (FIG. 5). Furthermore, according to the configuration of the present invention, the volute 7 can be completely sealed so that the air flow 4 inside the volute 7 flows only in the direction from the air inlet 10 to the air outlet 11.

  Therefore, as shown in FIG. 2, the electric fan unit 14 is accommodated in the inner space 15 through the air inlet 10 until the motor support portion 13 closes the opening 19 penetrating the receiving wall 18. Can do. The approach of the electric fan unit 14 is indicated by a dotted arrow.

  Further, as described above, as shown in FIG. 3, the electric fan unit 14 can be accommodated in the inner space 15 via the opening 19 until the motor support 13 closes the opening 19. The approach of the electric fan unit 14 is also indicated by a dotted arrow.

  When a maintenance operation that requires removing the electric fan unit 14 and the ring 41 occurs, according to the configuration of the present invention, the electric fan unit 14 can be attached to the volute 7 either from the inside of the volute 7 or from the outside of the volute 7. Can be removed from.

  As shown in FIG. 4, the electric fan unit 14 can be removed via the air inlet 10. The movement of the electric fan unit 14 is also indicated by a dotted arrow.

  According to another possibility provided by the present invention, the electric fan unit 14 can be removed via the opening 19 as shown in FIG. The movement of the electric fan unit 14 is indicated by a dotted line arrow.

For this reason, the motor support 13 is generally circular, the ring 41 is annular, and the opening 19 is also circular. In many cases, the diameter D of the motor support 13 is It is smaller than 'the diameter D of and openings 19' diameter D '. More particularly, the diameter D ', the diameter D of the opening 19' of the ring 41 is equivalent to 'ring 41 has the characteristic that defines the boundary of the opening provided in the edge of the opening 19 .

  These advantageous results show that, as shown in FIGS. 6 and 7, the motor support 13 has a deformable soft seal lip 20 when the motor support 13 passes through the opening 19 and the ring 41. It is obtained by preparing. More specifically, the soft seal lip 20 can be bent so that the motor support 13 does not become an obstacle when passing through the ring 41. When the motor support 13 is once fitted in the volute 7, Perfect sealing is guaranteed. The bending of the soft seal lip 20 is obtained by tilting the seal lip back and forth around the fixing point 21 of the soft seal lip 20 on the motor support portion 13.

  At the position where the electric fan unit 14 shown in FIG. 8 is fixed on the volute 7, the soft seal lip 20 contacts the outer edge 22 of the opening 19. This position of the soft seal lip 20 results, for example, from bringing the electric fan unit 14 from the outside of the volute 7 until the inner surface 23 of the soft seal lip 20 abuts the outer edge 22 (as shown in FIG. 3). Is. Similarly, this position of the soft seal lip 20 is caused, for example, by the deflection of the soft seal lip 20 when the electric fan unit 14 is approached from the inside of the volute 7 (as shown in FIG. 7).

  The electric fan unit 14 can be removed from the inside of the volute, for example, as shown in FIG. 6 from the position where the electric fan unit 14 is fixed on the volute 7 shown in FIG.

  From the position where the electric fan unit 14 is fixed on the volute 7 shown in FIG. 8, the electric fan unit 14 can be removed from the outside of the volute as shown in FIG. 9, for example. The movement of the electric fan unit 14 is indicated by a dotted line arrow.

In FIG. 10, the number of soft seal lips 20 is two, and these are provided on the outer surface 24 of the crown portion 25 included in the motor support portion 13. The crown portion 25 includes an axis of symmetry A parallel to the rotating shaft 12 of the turbine 8 in a state where the electric fan unit 14 is mounted on the volute 7. Each soft seal lip 20 is provided in each of the extended surfaces P1 and P2 perpendicular to the axis of symmetry A when the electric fan unit 14 is mounted on the volute 7.

  More specifically, the soft seal lip 20 is provided at the edge of the outer surface 24 and overmolded on the crown 25. The soft seal lip 20 is made of an elastomer type material such as styrene-ethylene-butylene-styrene block copolymer known by the name “SEBS”.

  With such an assembly, the soft seal lip 20 guarantees the sealing function of the volute 7, but does not affect the positioning of the electric fan unit 14 with respect to the volute 7. As a result, the life of the blower 6 is extended.

In FIG. 11, the blower 6 includes fixing devices 26 and 27 for fixing the electric fan unit 14 onto the volute 7. The fixing devices 26 and 27 include at least one first fitting member 26 provided on the outer surface 24 of the crown 25 and at least one second fitting member 27 provided on the inner surface 28 of the ring 41. Contains. This ring preferably has the form of an annular ring 41 comprising an axis of symmetry A ′ . When the electric fan unit 14 is mounted on the volute 7, the symmetry axes A 1 and A ′ of the crown portion 25 and the ring 41 overlap each other, so that the inner surface 28 and the outer surface 24 are in contact with each other without any gap, and the first fitting is performed. The member 26 is disposed on the opposite side of the second fitting member 27.

12, the first fitting member 26 includes a groove 30 provided along the plane P in the radial direction of the crown portion 25, the plane P in the radial direction, the extension surface P1 of the soft sealing lip 20, P2 And parallel. The groove 30 includes two orifice portions 31 provided in the radial plane P. Each orifice part 31 is opposed to the center of the symmetry point 42 of the groove 30. Each orifice part 31 is for enabling passage of the fingers 32 constituting the second fitting member 27 shown in FIG. The finger 32 is constituted by a protrusion provided on a support plate 43 that constitutes the second fitting member 27. The finger 32 has a structure in which the groove 30 engages with a recess 33 at the symmetry point 32. The recess 33 is for receiving the finger 32 at the position where the blower 6 is assembled. The setting of the finger 32 inside the recess 33 is performed by the movement of the crown 25 by a quarter rotation inside the ring 41, for example, and this quarter rotation is made along the radial plane P. The

Since the groove 30 includes two opposed orifices 31, the finger 32 is inserted to the position of the recess 33 inside the groove 30 by either a clockwise movement 34 or a counterclockwise movement 35. It becomes possible. The groove 30 is bounded by two edges 36 that are symmetrical to each other about the radial plane P. Each edge 36 is arranged, for example, in an arc shape, and the opposing convex surface 37 defines the boundary of the groove 30, so that the first fitting member 26 has an overall “X” shape. . Each edge 36 includes an end portion 39 constituting a first stopper that abuts against a second stopper 40 provided on both sides of the second fitting member 27. The number of the second stoppers 40 is two, and the second stoppers 40 are arranged on both sides of the substantially extended surface P ′ of the second fitting member 27. The second fitting member is arranged in an “I” shape within the generally extended surface P ′ .

More specifically, the second stoppers 40 are provided at equidistant positions D1 from the substantially extended surface P ′. This distance D1 is equivalent to the distance D1 ′ corresponding to the distance between the groove 30 and the end 39 of the edge 36. The second stopper 40 is arranged in a slide gradient provided substantially parallel to the extended surface P ′ , so that the end of the edge 36 is moved until the finger 32 slides in the groove 30 and finally fits in the recess 33. The part 39 slides along the second stopper 40. Since the second stoppers 40 are respectively disposed on both sides of the substantially extended surface P ′ , the motor support portion is on one side or the other side of the substantially extended surface P ′ , in other words, the inside of the volute 7 or the volute. 7, the second stopper 40 at the optimum position can be matched with the first fitting member 26 when approaching from either side of the outer wall 7. The first stopper 40 in the optimum position is a stopper that can align the groove 30 and the finger 32 on the same plane.

Regardless of the direction in which the electric fan unit 14 approaches the volute 7, the two second stoppers 40 can be easily accessed, so that the two second stoppers 40 are substantially orthogonal to the extended surface P ′ , It is arranged on both sides of the finger 42 around the cross section P ″ including the finger 32. More specifically, the two second stoppers 40 are separated from the second fitting member 27 by an interval E taken in the substantially extended surface P ′ . With such a configuration, an appropriate second stopper 40 can be selected by the clockwise movement 34 or the counterclockwise movement 35, and the finger 32 can be disposed inside the recess 33.

FIG. 14 a shows the approaching stage of the motor support 13, and the axes of symmetry A 1 and A ′ of the crown 25 and the ring 41 overlap each other.

  FIG. 14 b shows the insertion stage of the motor support 13, where the inner surface 28 and the outer surface 24 are opposed to each other. At this stage, the soft seal lip 20 can be deformed upon contact between the second stopper 40 and the second fitting member 27.

  FIG. 14 c shows the contact stage between the first end 39 of the first fitting member 26 and the second stopper 40.

  FIG. 14 d shows the stage of engagement of the second fitting member 27 into the groove 30.

  FIG. 14 e shows the locking stage of the motor support 13 on the ring 41 due to the presence of the fingers 32 inside the recess 33.

  FIG. 14 f shows the unlocking stage between the motor support 13 and the ring 41 due to the presence of the finger 32 outside the recess 33.

  FIG. 14 g shows the sliding stage of the first stopper 39 along the second stopper 40.

  FIG. 14 h shows the step of removing the motor support 13 from the ring 41.

DESCRIPTION OF SYMBOLS 1 Ventilation / heating and / or cooling equipment, equipment 2 Case 3 Inlet 4 Air flow 5 Air outlet 6 Blower 7 Volute (spiral body)
8 Turbine 9 Motor 10 Air inlet 11 Air outlet 12 Rotating shaft 13 Motor support portion 14 Electric fan unit 15 Inner space 16 Air intake wall 17 Exhaust wall 18 Receiving wall 19 Opening portion 20 Soft seal lip 21 (of soft seal lip 20) Fixing point 22 outer edge 23 (of opening 19) inner surface 24 (of soft seal lip 20) outer surface 25 (of motor support 13 crown 25) crown 26 (of motor support 13) crown 26 fixing device, first Fitting member 27 fixing device, second fitting member 28 inner surface 30 (of ring 41) groove 31 orifice part 32 finger 33 (of second fitting member 27) depression (receiving groove 30), receiving depression 34 clockwise movement 35 Counterclockwise movement 36 Edge 37 (of groove 30) Convex surface 39 (of edge 36) End of edge 36 (of edge 36), first stop 40 (groove 30) the second stopper 41 ring 42 point of symmetry 43 support plate
A Axis of symmetry (of crown 25)
A ' (Ring 41) symmetry axis
D Diameter of motor support 13
D ' diameter (of ring 41)
D ″ diameter (of opening 19)
D1 Distance (from approximate extension plane P ')
D1 ' distance (between groove 30 and edge 36 end 39)
E (Distance from second fitting member 26)
P Radial surface (of crown 25)
P ′ (generally extended surface of the second fitting member 27)
P '' cross section
P1 , P2 (extended soft seal lip 20)

Claims (17)

  An assembly constituting a blower (6) of the ventilation / heating and / or cooling equipment (1), the assembly comprising a motor support (13) for receiving a motor (9) and a motor support (13 ), And the motor support (13) has at least one soft seal lip (20) that is deformable when the motor support (13) passes through the ring (41). An assembly characterized by comprising one. Assembly according to claim 1, characterized in that the diameter D of the motor support (13) is smaller than the diameter D ' of the ring (41).   Assembly according to claim 1 or 2, characterized in that the soft seal lip (20) is provided on the outer surface (24) of the crown (25) included in the motor support (13).   4. Assembly according to claim 3, characterized in that the soft sealing lip (20) is provided at the edge of the outer surface (24).   The assembly according to claim 3 or 4, characterized in that the soft seal lip (20) is overmolded on the crown (25).   6. Assembly according to any one of the preceding claims, characterized in that the soft seal lip (20) is made of an elastomer type material.   The outer surface (24) comprises a first fitting member (26) for cooperating with a second fitting member (27) provided on the inner surface (28) of the ring (41), The assembly according to any one of claims 3 to 6. Assembly according to claim 7, characterized in that the first fitting member (26) comprises a groove (30) provided along the radial face P of the crown (25).   9. Assembly according to claim 8, characterized in that the groove (30) comprises at least one orifice part (31) allowing the passage of the fingers (32) constituting the second fitting member (27). . The groove (30) is opposed to the center of symmetry (42) of the groove (30) and includes two orifices (31) provided in a radial plane P. The assembly according to claim 9.   11. Assembly according to any one of claims 8 to 10, characterized in that the groove (30) comprises a receiving recess (33) of the finger (32). 12. The groove (30) is defined by any one of claims 8 to 11, characterized in that it is delimited by two edges (36) that are symmetrical to each other about a radial plane P. Assembly.   The at least one edge (36) has at least one first stopper (39) for abutting against at least one second stopper (40) provided on the inner surface (28) of the ring (41). The assembly according to claim 12, comprising: an assembly.   An electric fan unit (14) including a motor (9), a turbine (8), and a motor support (13), wherein the motor support (13) includes a ring (41). An electric fan unit comprising at least one soft seal lip (20) that is deformable when passing through the inside.   A volute comprising a receiving ring (41) of a motor support (13) comprising an electric fan unit (14) according to claim 14.   A blower (6) for ventilation / heating and / or cooling equipment (1), comprising a volute (7) according to claim 15 and an electric fan unit (14) according to claim 14.   14. A method for attaching and detaching an assembly according to any one of claims 1 to 13, comprising an attaching step and a removing step which are carried out in the same direction along one direction.

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