WO2014017633A1 - 電動ポンプ - Google Patents
電動ポンプ Download PDFInfo
- Publication number
- WO2014017633A1 WO2014017633A1 PCT/JP2013/070323 JP2013070323W WO2014017633A1 WO 2014017633 A1 WO2014017633 A1 WO 2014017633A1 JP 2013070323 W JP2013070323 W JP 2013070323W WO 2014017633 A1 WO2014017633 A1 WO 2014017633A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- cover
- pump
- electric pump
- bus bar
- vane
- Prior art date
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C15/00—Component parts, details or accessories of machines, pumps or pumping installations, not provided for in groups F04C2/00 - F04C14/00
- F04C15/0057—Driving elements, brakes, couplings, transmission specially adapted for machines or pumps
- F04C15/008—Prime movers
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C18/00—Rotary-piston pumps specially adapted for elastic fluids
- F04C18/30—Rotary-piston pumps specially adapted for elastic fluids having the characteristics covered by two or more of groups F04C18/02, F04C18/08, F04C18/22, F04C18/24, F04C18/48, or having the characteristics covered by one of these groups together with some other type of movement between co-operating members
- F04C18/34—Rotary-piston pumps specially adapted for elastic fluids having the characteristics covered by two or more of groups F04C18/02, F04C18/08, F04C18/22, F04C18/24, F04C18/48, or having the characteristics covered by one of these groups together with some other type of movement between co-operating members having the movement defined in group F04C18/08 or F04C18/22 and relative reciprocation between the co-operating members
- F04C18/344—Rotary-piston pumps specially adapted for elastic fluids having the characteristics covered by two or more of groups F04C18/02, F04C18/08, F04C18/22, F04C18/24, F04C18/48, or having the characteristics covered by one of these groups together with some other type of movement between co-operating members having the movement defined in group F04C18/08 or F04C18/22 and relative reciprocation between the co-operating members with vanes reciprocating with respect to the inner member
- F04C18/3446—Rotary-piston pumps specially adapted for elastic fluids having the characteristics covered by two or more of groups F04C18/02, F04C18/08, F04C18/22, F04C18/24, F04C18/48, or having the characteristics covered by one of these groups together with some other type of movement between co-operating members having the movement defined in group F04C18/08 or F04C18/22 and relative reciprocation between the co-operating members with vanes reciprocating with respect to the inner member the inner and outer member being in contact along more than one line or surface
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60T—VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
- B60T13/00—Transmitting braking action from initiating means to ultimate brake actuator with power assistance or drive; Brake systems incorporating such transmitting means, e.g. air-pressure brake systems
- B60T13/10—Transmitting braking action from initiating means to ultimate brake actuator with power assistance or drive; Brake systems incorporating such transmitting means, e.g. air-pressure brake systems with fluid assistance, drive, or release
- B60T13/12—Transmitting braking action from initiating means to ultimate brake actuator with power assistance or drive; Brake systems incorporating such transmitting means, e.g. air-pressure brake systems with fluid assistance, drive, or release the fluid being liquid
- B60T13/16—Transmitting braking action from initiating means to ultimate brake actuator with power assistance or drive; Brake systems incorporating such transmitting means, e.g. air-pressure brake systems with fluid assistance, drive, or release the fluid being liquid using pumps directly, i.e. without interposition of accumulators or reservoirs
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C29/00—Component parts, details or accessories of pumps or pumping installations, not provided for in groups F04C18/00 - F04C28/00
- F04C29/0042—Driving elements, brakes, couplings, transmissions specially adapted for pumps
- F04C29/0085—Prime movers
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K5/00—Casings; Enclosures; Supports
- H02K5/04—Casings or enclosures characterised by the shape, form or construction thereof
- H02K5/22—Auxiliary parts of casings not covered by groups H02K5/06-H02K5/20, e.g. shaped to form connection boxes or terminal boxes
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C2240/00—Components
- F04C2240/40—Electric motor
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C2240/00—Components
- F04C2240/80—Other components
- F04C2240/803—Electric connectors or cables; Fittings therefor
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C25/00—Adaptations of pumps for special use of pumps for elastic fluids
- F04C25/02—Adaptations of pumps for special use of pumps for elastic fluids for producing high vacuum
Definitions
- the present invention relates to an electric pump for making negative pressure in a negative pressure chamber of a brake booster of a vehicle, for example.
- a vane type vacuum pump has been used for vehicles such as automobiles, for example, in order to make negative pressure in a negative pressure chamber of a brake booster.
- a vane type vacuum pump includes an electric pump using an electric motor as power.
- Patent Document 1 discloses a technical content in which a wiring hole is provided in a housing of a pump unit, a wire harness is inserted through the wiring hole, and a connector is connected to a portion opposite to the motor.
- Patent Document 2 discloses a configuration in which an intermediate connector is detachably attached to the base plate.
- the present invention has been made based on the above circumstances, and an object of the present invention is to provide an electric pump that can sufficiently secure a space for providing an electrical configuration and can share a motor unit. It is intended to provide.
- the motor cover includes an end cap that is provided on the opening side of the motor cover and that is provided integrally with the end cap.
- the motor part having a power bus bar extending toward the side away from the bottom of the motor, the vane groove for storing the vane and the rotor connected to the rotating shaft, and the outer wall part and the cam ring on which the vane slides are integrated.
- a pump part provided with a pump plate, and a cover provided with a connector box that covers the pump part from the opposite side of the motor part and surrounds the insertion recess into which the power bus bar is inserted.
- a through-hole through which the bus bar can be inserted is provided, and the power bus bar that passes through the through-hole has wiring. Passed, wiring with projects from the front end side of the through hole, the wiring is electrically connected to the connection portion provided in the insertion recess, an electric pump is provided, characterized in that.
- the pump plate is provided with a bulging portion in which a part of the cam ring is bulged to the outer diameter side, and the bulging portion has a through hole. Is preferably provided.
- an extension portion extending outward from the outer wall portion is provided on any outer wall portion of the cover.
- the connector cover extends toward the motor part side, an external cable is inserted into the internal space of the connector cover, and one end side is electrically connected to the connection part inside the extension part and the other end It is preferable that a conductive member whose side protrudes into the internal space of the connector cover is provided.
- the cover is attached with a control board that is electrically connected to the connecting portion and controls the driving of the rotating shaft in the motor portion. Is preferred.
- the motor unit can be shared.
- FIG. 4 is a cross-sectional view illustrating a state in which the electric pump is cut along the line AA in FIG. 3 as viewed from the side surface side.
- FIG. 4 is a cross-sectional view illustrating a state in which the electric pump is cut along the line BB in FIG. 3 as viewed from the side surface side. It is a side view of the electric pump of FIG. FIG.
- FIG. 7 is a cross-sectional view illustrating a configuration in which the electric pump is cut along the line CC in FIG. 6 as viewed from the front side (cover side).
- FIG. 7 is a cross-sectional view showing a state in which the electric pump is cut along the line DD in FIG. 6 as viewed from the front side (cover side).
- FIG. 7 is a cross-sectional view showing a state in which the electric pump is cut along the line EE in FIG. 6 as seen from the back side (motor unit side). It is a perspective view which shows the structure of the electric pump which concerns on the modification of this invention.
- FIG. 1 is an exploded perspective view showing the configuration of the electric pump 10 viewed from the cover 40 side
- FIG. 2 is an exploded perspective view showing the configuration of the electric pump 10 viewed from the motor unit 20 side
- FIG. 3 is a front view showing the configuration of the electric pump 10 as viewed from the cover 40 side.
- the electric pump 10 includes a motor unit 20, a vane pump unit 30, and a cover 40 as main components.
- FIG. 4 is a cross-sectional view showing a configuration in which the electric pump 10 is cut along the line AA in FIG. 3 as viewed from the side.
- FIG. 5 is a cross-sectional view showing a configuration in which the electric pump 10 is cut along the line BB in FIG. 3 as viewed from the side.
- the motor unit 20 includes an end cap 22, a rotating shaft 23, a bearing 24, and a magnet 25, which are covered with a motor cover 21.
- the rotary shaft 23 is a bearing 24 (24 a) attached to the bottom side (one end side) of the motor cover 21, and one end side thereof is pivotally supported, and the bearing 24 is attached to the end cap 22. (24b) is also pivotally supported.
- a plurality of involute teeth 23 a are formed on the other end side of the rotating shaft 23. That is, the rotating shaft 23 is an involute spline shaft, and a hole (spline hole 321) corresponding to the involute tooth 23a is provided at the center of the rotor 32 described later.
- the end cap 22 is attached to the vane pump portion 30 side, which is the opening side of the motor cover 21, and a center hole 221 through which the rotary shaft 23 is inserted is provided on the center side of the end cap 22 (see FIG. 4). ). Further, a circumferential flange portion 222 protruding in a circumferential shape is provided on the center side of the end cap 22, and the above-described bearing 24 b is fitted into the fitting portion 223 surrounded by the circumferential flange portion 222. .
- a rotor 231 is attached to the rotary shaft 23, and a winding is wound around the rotor 231.
- a magnet 25 is arranged on the inner wall of the motor cover 21 so as to face the rotor 231.
- a commutator 232 is attached to the vane pump unit 30 side of the rotor of the rotary shaft 23, and the commutator 232 is provided so as to contact the brush 26.
- the brush 26 that supplies power to the commutator 232 is supported via a brush support portion 233 supported by the end cap 22 described above. Accordingly, even if the commutator 232 rotates with respect to the brush 26 by the rotation of the rotating shaft 23, the brush 26 supplies power to the commutator 232 without following the rotating shaft 23.
- the brush support portion 233 is integrated with the end cap 22. In the conventional configuration, the brush 26 is supported by a brush plate that is separate from the end cap 22. However, in this embodiment, the brush support portion 233 that has the function of the brush plate in the end cap 22 is integrated. Adopted a simplified configuration. In the present embodiment, the end cap 22 with which the brush support portion 233 is integrated is formed by, for example, resin molding.
- the end cap 22 is integrally provided with a power bus bar 27.
- the power bus bar 27 is a long portion protruding from the end cap 22 toward the vane pump portion 30 side, and a cross-sectional shape in a direction orthogonal to the protruding direction is a pair of semicircular arcs and a pair of straight lines connected to each other. It has a flat shape.
- the power bus bar 27 has a lead wire 28 (corresponding to wiring), and a part of the lead wire 28 protrudes from the tip of the power bus bar 27.
- the lead wire 28 is formed in a state of being embedded in the power bus bar 27 by a technique such as insert molding.
- the lead wire 28 that electrically connects the brush 26 and the connecting portion 46 can be disposed over the entire long power bus bar 27.
- an insertion hole along the longitudinal direction of the power bus bar 27 may be provided, and the lead wire 28 may be inserted into the insertion hole.
- the connection unit 46 will be described later.
- the end cap 22 of the motor unit 20 is attached to a pump plate 31 constituting the vane pump unit 30 through an O-ring S1.
- the vane pump unit 30 includes a rotor 32, a vane 33, a seal S2, and the like in addition to the pump plate 31, which will be sequentially described.
- the vane pump unit 30 is a part that functions as a dry and vane vacuum pump that does not use lubricating oil.
- the vane pump unit 30 corresponds to the pump unit.
- FIG. 6 is a side view of the electric pump 10.
- FIG. 7 is a cross-sectional view showing a configuration in which the electric pump 10 is cut along the line CC in FIG. 6 as viewed from the front side (the cover 40 side).
- 8 is a cross-sectional view showing a configuration in which the electric pump 10 is cut along the line DD in FIG. 6 as viewed from the front side (the cover 40 side).
- the pump plate 31 is a cam ring integrated plate in which various parts including the outer wall part 311 (for example, a cam bottom surface 315 described later) and a cam ring 313 are integrated.
- the pump plate 31 is comprised from the aluminum-type member which is a material with high heat conductivity, for example, you may be formed from other materials (for example, iron-type member).
- Aluminum-based materials include Al-Si-based, Al-Si-Cu-based, Al-Fe-Cu-based, Al-Si-Fe-Cu-based known aluminum alloys, and aluminum or aluminum alloys such as SiC.
- An Al—SiC composite material to which powder is added can be used.
- the entire internal structure of the pump plate 31 is covered with an outer wall portion 311 having a substantially rectangular appearance when seen in a plan view, and a nipple N is formed on the outer wall portion 311.
- a nipple connection port 312 to be connected is provided.
- the nipple connection port portion 312 communicates with one end side of a suction path P (see FIG. 5) provided in the pump plate 31. Note that the other end side of the suction path P is exposed to an intake chamber C2, which will be described later, and gas can be introduced into the intake chamber C2.
- a cam ring 313 surrounded by an outer wall 311 is provided on the center side of the pump plate 31.
- the cam ring 313 is a ring-shaped portion that protrudes from the bottom surface side (motor unit 20 side) of the pump plate 31 toward the cover 40, and the inner wall surface of the cam ring 313 is a cam surface 314.
- a cam bottom surface 315 is provided on the bottom surface side of the internal space surrounded by the cam ring 313 so that the bottom surface side of the rotor 32 can be received.
- a closing plate 34 (described later) is attached to the cover 40 side of the cam ring 313. Then, a rotor chamber C1 that is a space closed by the cam surface 314, the cam bottom surface 315, and the closing plate 34 is formed.
- the cam surface 314 is provided in an elliptical shape, and the length on the short axis side of the elliptical shape corresponds to the diameter of the rotor 32 having a circular shape when seen in a plan view. .
- intake chamber C2 two crescent-shaped spaces
- the suction passage P described above communicates with the intake chamber C2, and gas can be introduced into the intake chamber C2.
- the electric pump 10 in the present embodiment is a dry type that does not use lubricating oil
- a coating film is formed on the cam surface 314 in order to improve slidability.
- the composition and the film forming method of the coating film are not particularly limited, but it is preferable to employ a known hard plating film.
- a hard plating film for example, a Ni—PX-based plating film (X is W, Co, Pd, Re, Y, Mo, Ti, and the like exemplified in Japanese Patent Application Laid-Open No. 2001-192850).
- Ni-BX plating films examples thereof include a Co—W type plating film exemplified in Kaihei 4-94489 and the like, and a Ni—Co—PW type plating film exemplified in Japanese Patent No. 4185523.
- the pump plate 31 is provided with a bulging portion 316 in which a part of the cam ring 313 is bulged to the outer diameter side, and the bulging portion 316 has a through hole 317.
- the through hole 317 is a hole portion through which the power bus bar 27 is inserted, and is provided in a slightly larger hole shape than the power bus bar 27. That is, even when the power bus bar 27 is inserted through the through hole 317, there is a slight gap between the power bus bar 27 and the inner wall surface of the through hole 317.
- a discharge pipe 318 is integrally provided in the vicinity of the inner peripheral side of the outer wall portion 311 of the pump plate 31.
- the discharge pipe 318 is a part for discharging the gas discharged from the communication hole 342 (described later) into the cover 40 to the outside.
- the pump plate 31 is provided with a projecting tube 319 communicating with the discharge tube 318 so as to project to the motor unit 20 side.
- the outer appearance of the rotor 32 is substantially cylindrical, but a spline hole 321 corresponding to the above-described involute tooth 23 a is provided on the center side of the rotor 32, and the involute tooth 23 a is provided in the spline hole 321.
- a plurality of vane grooves 322 are provided on the outer peripheral surface of the rotor 32, and the vanes 33 are movably accommodated in the vane grooves 322.
- the vane groove 322 is provided in parallel to the central axis L of the rotor 32 (see FIGS.
- the vane groove 322 does not follow the radial direction of the rotor 32, and extends from the center side toward the outer peripheral side. And is formed in a direction that proceeds in the rotation direction.
- the vane 33 is disposed in such a vane groove 322, and the pressure chamber C ⁇ b> 3 is formed in the intake chamber C ⁇ b> 2 by the vane 33 abutting against the cam surface 314 by the centrifugal force generated by the rotation of the rotor 32.
- the pressure chamber C3 is a portion of the intake chamber C2 that is separated by the vane 33 and the rotor 32, or a portion that is separated by the adjacent vane 33.
- the closing plate 34 is attached to the end surface of the cam ring 313 on the cover 40 side via, for example, a screw or the like, and the rotor chamber C1 which is a closing space is formed by the attachment.
- the closing plate 34 is formed with a convex portion 341 that protrudes toward the cover 40 due to plastic deformation of the closing plate 34 by press working.
- the motor portion 20 side of the convex portion 341 is a part of the suction path P (see FIG. 5).
- the cam ring 313 is formed with a part of the insertion hole P1 constituting the suction path P, and the insertion hole P1 communicates with the side away from the rotation center of the convex portion 341. Note that the insertion hole P1 communicates with the nipple N described above.
- the closing plate 34 is provided with a communication hole 342.
- the communication hole 342 communicates with the intake chamber C2.
- the opening of the convex portion 341 communicates with one end of a crescent-shaped intake chamber C2 as shown in FIG. 7, and the communication hole 342 communicates with the other end of the crescent-shaped intake chamber C2.
- the outer peripheral surface of the rotor 32 passes through the vicinity of the opening of the convex portion 341, travels along the intake chamber C ⁇ b> 2 for a while, and reaches the vicinity of the communication hole 342.
- a cover 40 is attached to the pump plate 31 via a seal S2.
- the cover 40 is a member that covers and closes the opposite side of the pump plate 31 from the motor unit 20.
- the cover 40 is provided with a top surface portion 41 and a side surface portion 42, and the top surface portion 41 faces the pump plate 31 with a predetermined gap therebetween.
- a flange portion 43 is provided on the side of the side surface portion 42 on the vane pump portion 30 side. The flange portion 43 abuts on the end surface of the outer wall portion 311 and is fixed to the outer wall portion 311 via a screw M.
- a plurality of ribs 44 project from the top surface 41 toward the pump plate 31, and the ribs 44 extend along the vertical and horizontal directions orthogonal to the central axis L. Is provided.
- FIG. 9 is a cross-sectional view showing a configuration in which the electric pump 10 is cut along the line EE in FIG. 6 as viewed from the back side (motor unit 20 side).
- the end surface of the rib 44 on the vane pump portion 30 side is a seating surface of the resonator plate 50 as shown in FIGS. 2 and 9, and the resonator plate 50 is installed on the seating surface.
- a small chamber C4 (see FIG. 5) surrounded by the top surface portion 41, the rib 44, and the resonator plate 50 is formed.
- the resonator plate 50 is formed with a plurality of holes 50a communicating with the small chambers C4. Gas can enter and exit through the hole 50a, and the small chamber C4 functions as a resonator utilizing the resonance effect of sound.
- the cover 40 is provided with a connector box 45 protruding from the top surface 41 toward the pump plate 31, and is surrounded by the connector box 45. As a result, a concave insertion recess 45a is formed.
- the insertion recess 45a allows the above-described power bus bar 27 to be inserted (see FIG. 4).
- the connection part 46 electrically connected with the lead wire 28 is provided in the top
- the insertion recess 45a is provided in a state of being aligned with the through hole 317 present in the bulging portion 316.
- a grommet 51 as shown in FIGS. 1, 2, and 4 is disposed on the opening side of the connector box 45, and this grommet 51 is also in contact with the end face of the bulging portion 316. As shown in FIG. 4, the grommet 51 enters the insertion recess 45 a by a predetermined amount, and the power bus bar 27 is inserted into the insertion recess 45 a through the grommet 51, and the lead wire 28 is electrically connected to the connection portion 46 by the insertion. Connected to.
- an extending portion 47 is provided extending from the side surface portion 42 located in the vicinity of the connector box 45 in a direction away from the central axis L.
- a connector cover 48 extending from the extending portion 47 so as to return to the motor portion 20 side in a state parallel to the central axis L extends from the extending portion 47.
- the connector cover 48 is provided in a cylindrical shape with an opening at the motor unit 20 side, and a cable (not shown) can be inserted into the connector cover 48.
- the connector cover 48 can be formed in various shapes according to the connector shape of the vehicle to which the electric pump 10 of the present embodiment is attached.
- an in-connector bus bar 49 whose one end side is electrically connected to the connecting portion 46 is provided inside the extending portion 47 (see FIG. 4), and the other end side of the in-connector bus bar 49 is It protrudes into the internal space of the connector cover 48, and the in-connector bus bar 49 can be electrically connected to the inserted cable.
- the in-connector bus bar 49 corresponds to a conductive member.
- the rotor 32 rotates counterclockwise in FIG. 7 due to the rotation of the rotating shaft 23, but a centrifugal force that jumps out of the vane groove 322 acts on the vane 33 due to the rotation of the rotor 32.
- the vane 33 comes into contact with the cam surface 314, but when the vane 33 reaches the intake chamber C ⁇ b> 2, the vane 33 and the rotor 32 and the cam surface 314 are closest to each other (one closest portion) or the vane.
- a pressure chamber C3 is formed between the vane 33 and the adjacent vane 33. Since the pressure chamber C3 increases in volume along the rotation direction of the rotor 32 for a while, a gas such as air is sucked from the opening of the convex portion 341.
- the end cap 22 is integrally provided with the power bus bar 27, and the power bus bar 27 is inserted into the connector box 45 after passing through the through hole 317 of the pump plate 31. It is inserted into the recess 45a. And the lead wire 28 which protrudes from the front-end
- the lead wire 28 is electrically connected at the connecting portion 46 on the cover 40 side. Therefore, it is possible to cope with various mounting modes and various requirements by changing the design on the cover 40 side without changing the design on the motor unit 20 side. That is, in automobiles and the like, there are various connector shapes, and when a connection portion with a connector is provided on the motor unit 20 side corresponding to such various connector shapes, the same type is used. Even in the motor unit 20, it is necessary to create a mold for molding corresponding to the connection portion with the connector, and in the motor unit 20, the balance with the axis of the rotary shaft 23 is necessary. Therefore, accuracy in molding is also required, and the cost increases accordingly.
- the connection with the connector is employed.
- the portion corresponding to the connecting portion may be provided on the cover 40 side, and in this embodiment, the connector cover 48 corresponds to such a portion. If the connector cover 48 has a shape corresponding to various connectors, even the motor unit 20 electrically connected to various types of connectors can be used in common. It becomes.
- various electrical configurations such as the in-connector bus bar 49 can be provided on the cover 40 side where a sufficient space for providing the electrical configuration can be secured.
- the electric pump 10 of this form is easily adapted to changes in the electrical configuration.
- an electric pump 10A having an electric configuration different from that of the electric pump 10 described in FIGS. 1 to 9 will be described with reference to FIG.
- FIG. 10 is a perspective view showing an electric pump 10A having a configuration in which the control board 100 is provided on the cover 40 side.
- the part to which the control board 100 is attached is required to have a relatively large area. Therefore, in the conventional electric pump, it is difficult to attach the control board to the electric pump, and as a result, the control board is often attached to a position separate from the electric pump.
- the control board 100 is provided on the top surface 41 side of the cover 40.
- the top surface portion 41 is disposed away from the vane pump portion 30 that generates heat during the compression process, and further on the side away from the vane pump portion 30 with a small chamber C4 functioning as a resonator on the top surface portion 41 side.
- a control board 100 is provided. Therefore, in the present embodiment, it is possible to suppress the influence of heat generated in the vane pump unit 30 from occurring on the control board 100.
- the pump plate 31 is provided with a bulging portion 316 in which a part of the cam ring 313 is bulged to the outer diameter side, and the bulging portion 316 is provided with a through hole 317. It has been.
- the power bus bar 27 is inserted into the through-hole 317 of the bulging portion 316 in this way, the guide property of the power bus bar 27 is improved, and the power bus bar 27 is bent between the connection portion 46 and the like. Can be prevented.
- there is a slight gap between the power bus bar 27 and the inner wall surface of the through hole 317 the heat generated in the compression process in the rotor chamber C1 through the gap of the through hole 317 is transferred to the vane pump unit 30. It is possible to escape to the outside.
- the surface area of the cam ring 313 is increased by providing the bulging portion 316, it is possible to obtain an effect of radiating the heat generated in the rotor chamber C1 even when the surface area is increased.
- the cover 40 is provided with an extending portion 47 and a connector cover 48, and an external cable is inserted into the internal space of the connector cover 48, and the extending portion 47 has an inside.
- An in-connector bus bar 49 is provided, one end of which is electrically connected to the connecting portion 46 and the other end of which protrudes into the internal space of the connector cover 48. For this reason, it is possible to satisfactorily supply power to the motor unit 20 simply by inserting an external cable into the connector cover 48.
- the electric pump 10 is a dry type that does not use lubricating oil.
- the present invention may be applied to a wet type electric pump using lubricating oil.
- the pump unit is a vane pump unit using a vane type pump, but the present invention may be applied to a pump unit using a pump other than the vane type pump.
- the cover 40 has a configuration in which the extending portion 47 protrudes from the side surface portion 42 toward the outside, and the connector cover 48 is connected to the extending portion 47.
- a configuration in which the extending portion 47 is omitted and a portion corresponding to the connector cover 48 extends from the side surface portion 42 toward the inside of the cover 40 may be employed.
- a configuration is adopted in which one extending portion 47 extends outward from the side surface portion 42 of the cover 40, and one connector cover 48 is connected to the extending portion 47. is doing.
- the number of extending portions 47 and connector covers 48 is not limited to one, and two or more may be provided.
- a configuration may be adopted in which a plurality of connector covers 48 corresponding to connections to different types of cables are provided, and the same number or a small number of extending portions 47 are provided.
- Grommet 100 Control board 231 ... Rotor 232 ... Commutator 311 ... Outer wall part 313 ... Cam ring 314 ... Cam surface 316 ... Expansion part 317 ... Through-hole 322 ... Vane groove 341 ... Convex part 342 ... communication hole C1 ... rotor chamber C2 ... intake chamber C3 ... pressure chamber C4 ... small chamber
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Abstract
Description
図1は、電動ポンプ10をカバー40側から見た構成を示す分解斜視図であり、図2は、電動ポンプ10をモータ部20側から見た構成を示す分解斜視図である。また、図3は、電動ポンプ10をカバー40側から見た構成を示す正面図である。図1から図3に示すように、電動ポンプ10は、モータ部20と、ベーンポンプ部30と、カバー40とを主要な構成要素としている。
以上のような構成の電動ポンプ10では、ケーブルからコネクタ内バスバー49、接続部46、リード線28、ブラシ26および整流子232を経て、回転子231の巻線に電力が供給され、その電力の供給によって回転子231および回転軸23が回転させられる。
以上のような構成の電動ポンプ10によると、エンドキャップ22には電源バスバー27が一体的に設けられ、その電源バスバー27はポンププレート31の貫通孔317を通過した後に、コネクタボックス45の差込凹部45aに差し込まれる。そして、電源バスバー27の先端から突出しているリード線28は、差込凹部45a内の接続部46に電気的に接続される。
以上、本発明の各実施の形態について説明したが、本発明はこれ以外にも種々変形可能となっている。以下、それについて述べる。
20…モータ部
21…モータカバー
22…エンドキャップ
23…回転軸
23a…インボリュート歯
26…ブラシ
27…電源バスバー
28…リード線(配線に対応)
30…ベーンポンプ部(ポンプ部に対応)
31…ポンププレート
32…ロータ
33…ベーン
34…閉塞プレート
40…カバー
41…天面部
42…側面部
44…リブ
45…コネクタボックス
45a…差込凹部
46…接続部
47…延出部
48…コネクタカバー
49…コネクタ内バスバー
50…レゾネータプレート
51…グロメット
100…制御基板
231…回転子
232…整流子
311…外壁部
313…カムリング
314…カム面
316…膨出部
317…貫通孔
322…ベーン溝
341…凸状部
342…連通孔
C1…ロータ室
C2…吸気室
C3…圧力室
C4…小部屋
Claims (4)
- 回転軸を備えると共に、モータカバーの開口側に取り付けられるエンドキャップを備え、このエンドキャップと一体的に設けられ、かつモータカバーの底部から離れる側に向かって延伸する電源バスバーを備えるモータ部と、
ベーンを収納するベーン溝を備えると共に前記回転軸に連結されるロータを備え、外壁部と前記ベーンが摺動するカムリングとが一体的に設けられるポンププレートを備えるポンプ部と、
前記ポンプ部を前記モータ部とは反対側から覆うと共に、前記電源バスバーが差し込まれる差込凹部を囲むコネクタボックスを備えるカバーと、
を備え、
前記ポンププレートには、前記電源バスバーを挿通させることが可能な貫通孔が設けられていて、この貫通孔を挿通する前記電源バスバーには配線が挿通され、前記配線は前記貫通孔の先端側から突出していると共に、前記配線は前記差込凹部に設けられる接続部に対して電気的に接続される、
ことを特徴とする電動ポンプ。 - 請求項1記載の電動ポンプであって、
前記ポンププレートには、前記カムリングの一部を外径側に膨出させた膨出部が設けられていて、当該膨出部には前記貫通孔が設けられている、
ことを特徴とする電動ポンプ。 - 請求項1または2記載の電動ポンプであって、
前記カバーのいずれかの外壁部には、当該外壁部から外方に向かって延伸する延出部が設けられていて、
前記延出部からはコネクタカバーが延伸していて、このコネクタカバーの内部空間には外部のケーブルが差し込まれ、
前記延出部の内部には、一端側が前記接続部に電気的に接続されると共に他端側がコネクタカバーの内部空間に突出する導電部材が設けられている、
ことを特徴とする電動ポンプ。 - 請求項1から3のいずれか1項に記載の電動ポンプであって、
前記カバーには、前記接続部に対して電気的に接続されると共に前記モータ部における前記回転軸の駆動を制御する制御基板が取り付けられている、
ことを特徴とする電動ポンプ。
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201380049750.1A CN104685214B (zh) | 2012-07-26 | 2013-07-26 | 电动泵 |
US14/417,323 US9726174B2 (en) | 2012-07-26 | 2013-07-26 | Electric pump |
EP13822373.0A EP2878823B1 (en) | 2012-07-26 | 2013-07-26 | Electric pump |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
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JP2012166379A JP6091792B2 (ja) | 2012-07-26 | 2012-07-26 | 電動ポンプ |
JP2012-166379 | 2012-07-26 |
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WO2014017633A1 true WO2014017633A1 (ja) | 2014-01-30 |
Family
ID=49997438
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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PCT/JP2013/070323 WO2014017633A1 (ja) | 2012-07-26 | 2013-07-26 | 電動ポンプ |
Country Status (5)
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US (1) | US9726174B2 (ja) |
EP (1) | EP2878823B1 (ja) |
JP (1) | JP6091792B2 (ja) |
CN (1) | CN104685214B (ja) |
WO (1) | WO2014017633A1 (ja) |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
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TWI709006B (zh) * | 2014-04-01 | 2020-11-01 | 日商尼康股份有限公司 | 圖案描繪裝置及圖案描繪方法 |
JP6518275B2 (ja) * | 2017-02-24 | 2019-05-22 | シナノケンシ株式会社 | 電動ポンプ |
KR20200030296A (ko) * | 2018-09-12 | 2020-03-20 | 엘지이노텍 주식회사 | 모터 |
DE102021210043A1 (de) * | 2021-09-10 | 2023-03-16 | Vitesco Technologies Germany Gmbh | Pumpe, insbesondere Getriebeölpumpe mit modularem Aufbau |
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JPH08200217A (ja) | 1995-01-23 | 1996-08-06 | Toyota Motor Corp | 電動ポンプ及びその製造方法 |
JP2001192850A (ja) | 2000-01-11 | 2001-07-17 | Ebe Katsuo | 摺動部品用表面処理液及び摺動部品の表面処理方法及び摺動部品 |
JP4185523B2 (ja) | 2005-12-14 | 2008-11-26 | 日本カニゼン株式会社 | 無電解ニッケルめっき皮膜およびこの皮膜を有する機械部品 |
JP2010174851A (ja) * | 2009-02-02 | 2010-08-12 | Calsonic Kansei Corp | 圧縮機用シャフト・ロータ組立体、ベーンロータリコンプレッサおよび圧縮機用シャフト・ロータ組立体の製造方法 |
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US5895207A (en) * | 1993-06-17 | 1999-04-20 | Itt Automotive Europe, Gmbh | Electric motor-pump assembly |
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JP2008232134A (ja) * | 2007-02-20 | 2008-10-02 | Calsonic Kansei Corp | 電動コンプレッサ |
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- 2013-07-26 US US14/417,323 patent/US9726174B2/en not_active Expired - Fee Related
- 2013-07-26 CN CN201380049750.1A patent/CN104685214B/zh active Active
- 2013-07-26 EP EP13822373.0A patent/EP2878823B1/en active Active
- 2013-07-26 WO PCT/JP2013/070323 patent/WO2014017633A1/ja active Application Filing
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JPH0494489A (ja) | 1990-08-11 | 1992-03-26 | Kooken:Kk | 圧縮機 |
JPH08200217A (ja) | 1995-01-23 | 1996-08-06 | Toyota Motor Corp | 電動ポンプ及びその製造方法 |
JP2001192850A (ja) | 2000-01-11 | 2001-07-17 | Ebe Katsuo | 摺動部品用表面処理液及び摺動部品の表面処理方法及び摺動部品 |
JP4185523B2 (ja) | 2005-12-14 | 2008-11-26 | 日本カニゼン株式会社 | 無電解ニッケルめっき皮膜およびこの皮膜を有する機械部品 |
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JP2010236512A (ja) | 2009-03-31 | 2010-10-21 | Nissin Kogyo Co Ltd | 電動ポンプ |
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Also Published As
Publication number | Publication date |
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EP2878823A1 (en) | 2015-06-03 |
CN104685214A (zh) | 2015-06-03 |
EP2878823A4 (en) | 2016-07-06 |
US20150275894A1 (en) | 2015-10-01 |
US9726174B2 (en) | 2017-08-08 |
EP2878823B1 (en) | 2017-11-15 |
JP6091792B2 (ja) | 2017-03-08 |
CN104685214B (zh) | 2016-10-26 |
JP2014025412A (ja) | 2014-02-06 |
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