JP2019075872A - Control function-provided actuator and electric pump - Google Patents

Abstract

PROBLEM TO BE SOLVED: To suppress corrosion of a cover member while ensuring high heat dissipation of the control unit by using a metal cover member in an actuator with a control function in which a mechanism unit and a control unit are housed in a housing. To provide an actuator with a control function and an electric pump equipped with the actuator with the control function. An actuator 10 with a control function includes a motor unit 3, a control unit 4 that controls the motor unit 3, and a housing 5 that houses the motor unit 3 and the control unit 4. The housing 5 is composed of a housing body 51 that houses the motor unit 3 and a housing lid 51 that houses the control unit 4, and the housing lid 52 includes a metal cover member 6 that faces the substrate 40 of the control unit 4. The housing body 51 and the housing lid 52 are integrated by having the annular resin member 7 integrally bonded to the edge of the metal cover member 6 and the annular resin member 7 being bonded to the housing body 51. Has been made. [Selection diagram] Fig. 2

Description

  The present invention relates to a mechanical unit performing mechanical operation, an actuator with a control function in which a control unit for controlling the mechanical unit is accommodated in a housing, and an electric pump including the actuator with the control function.

  Conventionally, for example, an on-vehicle electric oil pump is known as an actuator provided with a control function actuator having a mechanical unit and a control unit that perform mechanical operations (see, for example, Patent Documents 1 and 2).

  The electric oil pump described in Patent Document 1 includes an electric motor, an oil pump driven by the electric motor, a controller for supplying a driving current to the electric motor, a motor housing for housing the electric motor, and the controller together with the motor housing. And a cover for accommodating the The motor housing and the cover are both made of a thermoplastic resin, and are welded to each other by the frictional heat generated by contacting the motor housing while rotating the cover.

  The electric oil pump described in Patent Document 2 includes a motor unit including a brushless DC motor, a pump unit driven by the motor unit, a driver unit controlling the motor unit, and a resin motor housing accommodating the motor unit. And an aluminum cover for housing the driver portion. The cover is fixed by bolts to the motor housing with the O-ring interposed therebetween.

JP, 2015-48784, A JP 2005-337095 A

  When the controller is accommodated in a resin cover as in the electric oil pump described in Patent Document 1, the heat generated in the inverter circuit or the like of the controller is not easily dissipated to the outside, so the temperature in the cover tends to rise. As a result, there may be a restriction on the time during which the electric motor can be rotated continuously.

  Also, when the driver unit is housed in a metal cover as in the electric oil pump described in Patent Document 2, the heat generated in the driver unit is likely to be dissipated to the outside by the thermal conduction of the cover, but the cover is If salt water or the like intrudes into a slight gap between the motor housing and the resin motor housing, the cover may be corroded and deformed.

  Therefore, according to the present invention, in an actuator with a control function in which a mechanical unit and a control unit are housed in a housing, corrosion of the cover member is suppressed while securing high heat dissipation of the control unit using a metal cover member. It is an object of the present invention to provide an actuator with a control function that can be used and an electric pump provided with the actuator with the control function.

  In order to achieve the above object, the present invention provides a mechanical unit that receives a supply of electric power and performs a mechanical operation, and a plurality of units for controlling the power supplied to the mechanical unit to control the operation of the mechanical unit. An actuator with a control function having a control unit in which the electronic component of the present invention is mounted on a substrate, and a housing for accommodating the mechanism unit and the control unit, the housing having a housing main body having an opening at one end; A housing lid closing the opening, the mechanism is disposed inside the housing body, and at least a portion of the control portion is disposed inside the housing lid; the housing lid And a ring-shaped resin member integrally joined to an edge of the metal cover member, wherein the ring-shaped resin member is made of the metal. Made from the mold resin is molded into the edge portion of the bar member, said annular resin member of the housing lid is joined to the opening edge portion of the housing body, to provide a control function actuator.

  Furthermore, in order to achieve the above object, the present invention includes the above-described actuator with a control function, and a pump unit driven by the mechanism unit to discharge fluid, and the mechanism unit is supplied from the control unit A rotor core on which a magnet is attached, and a motor shaft that rotates with the rotor core with respect to the stator core, and the pump unit includes a rotor that is rotated by rotation of the motor shaft; A pump housing for housing the rotor, wherein the pump housing is fastened to the housing body.

  According to the actuator with a control function and the electric pump according to the present invention, it is possible to suppress corrosion of the cover member while securing high heat dissipation of the control unit using a metal cover member.

FIG. 1 is a perspective external view of an electric pump according to an embodiment of the present invention. It is a sectional view of an electric pump, and (a) is a whole view and A section enlarged drawing of (a). (A) is sectional drawing of the electric pump in the BB line of Fig.2 (a). (B) is sectional drawing of the electric pump in the CC line | wire of Fig.2 (a). It is explanatory drawing explaining the process of joining an annular resin member to a housing main body by welding, (a) shows the state before joining, (b) shows the state at the time of joining, respectively. It is a perspective external view of the electric pump concerning a comparative example.

Embodiment
Embodiments of the present invention will be described with reference to FIGS. 1 to 4. Note that the embodiments described below are shown as preferable specific examples for carrying out the present invention, and there are portions that specifically exemplify various technical matters that are technically preferable. The technical scope of the present invention is not limited to this specific embodiment.

(Whole structure of electric pump)
FIG. 1 is a perspective external view of an electric pump according to an embodiment of the present invention. FIG. 2 is a cross-sectional view of the electric pump, (a) is a general view, and (b) is an enlarged view of a portion A of (a). Fig.3 (a) is sectional drawing of the electric pump in the BB line cross section of Fig.2 (a), FIG.3 (b) is sectional drawing of the electric pump in the CC line of Fig.2 (a) .

  The electric pump 1 is an on-vehicle pump, and discharges, for example, oil for operation of the transmission, lubrication, or cooling. In the following description, for convenience, the terms "upper" and "lower" will be used corresponding to the upper and lower sides of Figs. 1 and 2, but the "upper" and "lower" are not necessarily vertical directions when mounted on a vehicle. It is also possible to mount the electric pump 1 on a vehicle, for example, so that the rotation axis is horizontal.

  The electric pump 1 includes a pump unit 2 for sucking and discharging oil, a motor unit 3 for driving the pump unit 2, a control unit 4 for controlling the motor unit 3, a motor unit 3, and a housing for accommodating the control unit 4. And five. The motor unit 3 is an aspect of the mechanical unit of the present invention which receives a supply of electric power and performs a mechanical operation. The control unit 4 controls the power supplied to the motor unit 3 to control the operation of the motor unit 3. The pump unit 2 is a driven unit driven by the motor unit 3 and provided below the motor unit 3. The control unit 4 is provided above the motor unit 3 so as to sandwich the motor unit 3 with the pump unit 2. The motor unit 3, the control unit 4, and the housing 5 are an aspect of the control function-equipped actuator 10 of the present invention.

  As shown in FIG. 3B, the pump unit 2 includes an inner rotor 21 having a plurality of outer teeth 211, and an outer rotor 22 having a number of inner teeth 221 larger than the number of the outer teeth 211 of the inner rotor 21. A pump which accommodates the inner rotor 21 and the outer rotor 22 with the pump plate 23 provided with the suction port 231 and the discharge port 232 communicating with the plurality of pump chambers 20 formed between the inner rotor 21 and the outer rotor 22 And a housing 24. As shown in FIG. 2A, the pump plate 23 has a suction flow path 233 for guiding oil from the outside to the suction port 231, and a discharge flow path 234 for discharging oil discharged to the discharge port 232 to the outside. It is done.

  The suction port 231 communicates with the pump chamber 20 in the process of increasing the volume of the plurality of pump chambers 20. The discharge port 232 communicates with the pump chamber 20 which is in the process of reducing the volume among the plurality of pump chambers 20. When the inner rotor 21 is rotated by the torque of the motor unit 3, the volumes of the plurality of pump chambers 20 repeat expansion and contraction, so the pump operation in which the oil sucked from the suction port 231 into the pump chamber 20 is discharged to the discharge port 232 Is done.

  As shown in FIGS. 2 (a) and 3 (a), the motor unit 3 includes a motor shaft 31, a rotor core 32 formed by laminating a plurality of electromagnetic steel plates, and a plurality of rotor cores 32 attached to the outer peripheral surface. A plurality of coils 36 wound around a plurality of teeth 341 of the stator core 34 via the permanent magnet 33, an annular stator core 34 made of soft magnetic metal, a plurality of insulators 35 attached to the stator core 34, and the insulator 35. And a distribution board 37 for distributing current to the plurality of coils 36.

  Current is supplied to the coil 36 from the control unit 4 via the power distribution board 37. The stator core 34 generates a magnetic field by the current supplied from the control unit 4 to the coil 36. The motor shaft 31 is rotatably supported by bearings 81 and 82 and rotates with the rotor core 32 about the rotation axis O. Further, the motor shaft 31 penetrates an axial hole 241 formed in the pump housing 24 and is connected to the inner rotor 21 so as not to be relatively rotatable. In the shaft hole 241, a seal member 83 in sliding contact with the outer peripheral surface of the motor shaft 31 is disposed.

  As shown in FIG. 3 (b), the tip end portion 311 of the motor shaft 31 is formed in a two-face width shape, and is fitted in the fitting hole 210 of the inner roller 21. The inner rotor 21 and the outer rotor 22 rotate as the motor shaft 31 rotates. Specifically, the inner rotor 21 rotates integrally with the motor shaft 31, and the outer rotor 22 rotates by meshing with the inner rotor 21.

  The control unit 4 includes a substrate 40 disposed on the upper side of the motor unit 3 and a plurality of electronic components for controlling the power and controlling the operation of the motor unit 3. The plurality of electronic components include various ICs such as the CPU 41 and the memory 42, a plurality of switching elements 43 constituting an inverter circuit, and passive elements 44 such as a capacitor and a resistor. The switching element 43 is, for example, an FET (field effect transistor), and when the on and off states of the plurality of switching elements 43 are switched at a predetermined PWM cycle, power distribution of the motor unit 3 is performed via the three bus bars 84. Three-phase alternating current is output to the substrate 37. In the illustrated example of FIG. 2, the CPU 41, the memory 42, and the passive element 44 are mounted on the first mounting surface 40a of the substrate 40, and the plurality of switching elements 43 are mounted on the second mounting surface 40b of the substrate 40. There are no particular restrictions on their arrangement.

  The substrate 40 is a printed circuit board on which a wiring pattern is formed on the surface of a substrate of a plate-like insulator such as glass epoxy, and a resist film is further applied. In the substrate 40, a plurality of through holes 400 penetrating between the first mounting surface 40a and the second mounting surface 40b are formed in a portion covered by the switching element 43. The through holes 400 facilitate heat conduction of the heat of the switching element 43 from the second mounting surface 40 b side to the first mounting surface 40 a side. Further, a plurality of connector pins 85 are connected to the substrate 40, and power supply from the battery and communication with the host controller are performed via the connector pins 85. In FIG. 2, only one connector pin 85 of the plurality of connector pins 85 is illustrated.

  The housing 5 comprises a housing body 51 and a housing lid 52. The housing body 51 is a molded body in which the stator core 34 of the motor unit 3 is molded with resin, and the motor unit 3 is disposed inside the housing body 51. The housing lid 52 has a metallic cover member 6 facing the substrate 40 (first mounting surface 40 a) and an annular resin member 7 integrally joined to the edge of the metallic cover member 6. The annular resin member 7 is joined and integrated with the opening edge of the housing main body 51 of the housing main body 51 and the housing lid 52. The control unit 4 is disposed inside the housing lid 52.

  A plurality of nuts 53 for coupling with the pump portion 2 are inserted into the housing body 51. In the present embodiment, three nuts 53 are inserted by molding of the housing main body 51, and in FIG. 2A, one nut 53 is illustrated. The pump plate 23 and the pump housing 24 are fastened to the housing main body 51 by three bolts 86 (see FIG. 3B) screwed to the three nuts 53 respectively. The bolt 86 is inserted into bolt insertion holes 230 and 240 which penetrate the pump plate 23 and the pump housing 24.

  The housing main body 51 is cylindrical as a whole, and one end on the control unit 4 side is opened upward. The housing body 51 includes a body portion 511 for housing the stator core 34, an annular coupling portion 512 to which the housing lid 52 is coupled, a connector portion 513 for holding a plurality of connector pins 85, and a substrate support for supporting the substrate 40. It has the part 514 integrally. The substrate support portion 514 is provided at a plurality of locations, and the substrate 40 is fixed to the substrate support portion 514 by bolts 87. In FIG. 2A, one of the substrate support portion 514 and the bolt 87 is illustrated.

  The housing lid 52 closes an opening on the control unit 4 side in the housing body 51. The annular resin member 7 of the housing lid 52 is made of a mold resin molded on the edge of the metal cover member 6. The annular resin member 7 is integrally molded with the metal cover member 6 by insert molding of the metal cover member 6. Further, in the housing lid 52, the annular resin member 7 is coupled to the coupling portion 512 of the housing main body 51 in a state in which the metal cover member 6 and the annular resin member 7 are coupled in advance. The metal cover member 6 is made of, for example, an aluminum alloy and is die-casted.

  The metal cover member 6 integrally has a flat plate portion 61 and a plurality of projections 62, and the inner surface 61a of the plate portion 61 is opposed in parallel to the first mounting surface 40a of the substrate 40. In the present embodiment, the shape of the plate portion 61 in the axial direction view along the rotation axis O is a rectangular shape in which four corners are chamfered (see FIG. 1). In the metal cover member 6, the bonding surface 61 b to which the annular resin member 7 is bonded is formed at the outer edge portion of the inner surface 61 a of the plate portion 61.

  The plurality of protrusions 62 project from the inner surface 61 a of the plate portion 61 toward the substrate 40. Between the tip end surface 62 a of the protrusion 62 and the first mounting surface 40 a of the substrate 40, a heat dissipating material 88 having excellent thermal conductivity such as heat dissipating grease is interposed. The heat generated by the switching element 43 is thermally conducted to the projection 62 through the through hole 400 of the substrate 40 by the heat radiating member 88, and is dissipated to the outside from the outer surface 61 b of the plate portion 61. Further, the heat of the other electronic components such as the CPU 41 is dissipated to the outside from the outer surface 61 b of the plate portion 61 through the air in the housing lid 52.

  When the switching element 43 is mounted on the first mounting surface 40 a of the substrate 40, the heat dissipating material 88 is interposed between the surface of the package of the switching element 43 and the tip surface 62 a of the protrusion 62 to make the switching element Heat the heat of 43. Further, among the electronic components other than the switching element 43 of the control unit 4, a corresponding protrusion 62 may be additionally provided for heat radiation of one having a large amount of heat generation. Furthermore, in the present embodiment, although the outer surface 61 c of the plate portion 61 is a flat surface, the outer surface 61 c may be provided with a projection that functions as a radiation fin.

  The annular resin member 7 is in the form of a frame disposed so as to surround the periphery of the substrate 40, and one end in the axial direction parallel to the rotation axis O is joined to the joint surface 61 b of the metal cover member 6. The annular resin member 7 includes a wall 71 extending in the axial direction, an inner collar 72 projecting inward from an upper end of the wall 71 on the metal cover 6 side, and a coupling portion 512 of the housing main body 51. It has integrally with the to-be-joined part 73 joined by welding.

  In the plate portion 61 of the metal cover member 6, the portion to which the annular resin member 7 is bonded is roughened. This roughening can be performed, for example, by laser processing, machining, or chemical etching. In FIG. 2B, as an example of the roughening, a joint portion between the metal cover member 6 subjected to laser processing and the annular resin member 7 is shown.

  In the laser processing, roughening can be performed by forming a large number of fine linear grooves 60 in the bonding surface 61 b of the metal cover member 6. Then, the groove 60 serves as an anchor, and the annular resin member 7 is firmly joined to the metal cover member 6. However, when the surface roughness of the cast surface of the die-cast metal cover member 6 is high enough to ensure the bonding strength with the annular resin member 7, the roughening process may not be performed.

  In the present embodiment, the annular resin member 7 is welded to the opening edge of the housing main body 51. Here, welding means that the respective portions of the annular resin member 7 and the housing main body 51 are fused and integrated with each other. It is desirable that the housing main body 51 and the annular resin member 7 be made of the same resin material. As this resin material, for example, PA66 (nylon 66) or PPS (polyphenylene sulfide) can be suitably used.

(Method of manufacturing actuator 10 with control function)
In the method of manufacturing the actuator with control function 10 in the electric pump 1, the first step of forming the metal cover member 6 to roughen the joint surface 61b, and integrally molding the annular resin member 7 with the metal cover member 6 A second step of forming the housing lid 52, a third step of attaching the substrate 40 on which a plurality of electronic components are mounted to the housing main body 51, and the annular resin member 7 integrally formed on the metal cover member 6; And a fourth step of bonding to the opening edge of the housing body 51 to which the substrate 40 is attached. Any of the first and second steps and the third step may be performed first, or may be performed simultaneously. The fourth step is performed after the second step and the third step. The step of attaching the pump unit 2 to the housing main body 51 may be performed before or after the first to fourth steps or may be performed during the first to fourth steps.

  FIG. 4 is an explanatory view for explaining a fourth step of welding the annular resin member 7 to the housing main body 51 by welding, in which (a) shows a state before bonding and (b) shows a state at bonding. . As a method of welding the annular resin member 7 to the opening edge portion of the housing main body 51, ultrasonic vibration, infrared (IR) or heating by laser may be adopted, but here, in the case of welding by ultrasonic vibration. explain.

  As shown in FIG. 4A, in the coupling portion 512 at the opening edge of the housing main body 51, a recessed groove 510 axially recessed from the axial end surface 51a of the housing main body 51 is formed over the entire circumference There is. The coupling portion 512 has an outer wall 515 on the outer peripheral side than the recessed groove 510 and an inner wall 516 on the inner peripheral side than the recessed groove 510. In the outer wall portion 515, a part of the bottom side of the recessed groove 510 protrudes toward the inner wall portion 516.

More specifically, the opposite surface of the outer wall 515 to the inner wall 516 includes a first side surface 515a on the axial end surface 51a side, a second side surface 515b on the bottom side of the concave groove 510, a first side surface 515a, and a first side surface. It consists of an inclined surface 515c inclined with respect to the axial direction between the two side surfaces 515b. The first side surface 515a and the second side surface 515b face each other in parallel to the side surface 516a of the inner wall 516, and the groove width W ₁ of the recessed groove 510 between the side surface 516a of the inner wall 516 and the second side surface 515b is the inner wall The groove width W ₂ of the recessed groove 510 between the side surface 516 a of the portion 516 and the first side surface 515 a is narrower. Such a step structure of the outer wall portion 515 is formed over the entire circumference of the recessed groove 510. A similar step structure may be provided on the inner wall 516 side, or such a step structure may be provided on both the outer wall 515 and the inner wall 516.

In the coupled portion 73 of the annular resin member 7, a fitting wall portion 731 to be fitted into the recessed groove 510 is formed over the entire circumference. Fitting wall portion 731 is a rectangular cross section, the thickness T is larger than the groove width W _1, slightly smaller than the groove width W _2. Therefore, when the fitting wall 731 is fitted in the recessed groove 510, one corner 731a at the tip of the fitting wall 731 abuts on the inclined surface 515c of the outer wall 515. The annular resin member 7 is vibrated in a state where the corner 731 a of the fitting wall 731 abuts on the inclined surface 515 c of the outer wall 515.

  The vibration of the annular resin member 7 is performed by bringing the ultrasonic horn H into contact with the receiving surface 71 a formed on the wall portion 71. The ultrasonic horn H ultrasonically vibrates in the X direction shown in FIG. 4B by an ultrasonic oscillator (not shown) while being pressed against the receiving surface 71a. Thereby, first, the corner 731a of the fitting wall 731 and the outer wall 515 in a part of the inclined surface 515c with which the corner 731a abuts melt. Thereafter, when excitation is continued, the entire portion of the outer wall 515 that protrudes to the inner wall 516 side of the first side surface 515a melts, forming a welded portion 520 fused with the fitting wall 731 of the annular resin member 7 Be done. The receiving surface 71a is formed on the entire periphery of the wall portion 71 as shown in FIG. 1, and the ultrasonic horn H is a cylindrical member having a shape corresponding to the receiving surface 71a.

(Comparative example)
FIG. 5 shows an electric pump 9 shown as a comparative example, in which (a) is a general view and (b) is a cross-sectional view of a portion shown by a broken line D in (a). In FIG. 5, the members having the same functions as those of the electric pump 1 according to the above embodiment are given the same reference numerals as those used in FIG.

  In the electric pump 9 according to this comparative example, the motor unit 3 is accommodated in the housing main body 51 as in the electric pump 1 according to the embodiment, but the opening of the housing main body 51 is closed only by the metal cover 90 The configuration is different from that of the above embodiment.

  The cover 90 integrally includes a flat ceiling portion 91 facing the first mounting surface 40 a of the substrate 40, a frame portion 92 surrounding the substrate 40, and a flange portion 93 projecting outward from a part of the frame portion 92. Have. The cover 90 is rectangular in axial direction, and flanges 93 are formed at the four corners. The cover 90 is fastened to the housing main body 51 by the flange portion 93 being bolted with a bolt 89.

  An O-ring groove 50 is annularly formed on the axial end surface 51 a of the housing main body 51, and the O-ring 900 is accommodated in the O-ring groove 50. The O-ring 900 resiliently contacts the lower end surface 92 a of the frame portion 92 in the cover 90 to seal between the housing body 51 and the cover 90.

  In the electric pump 9 configured as described above, between the axial end surface 51 a of the housing main body 51 and the lower end surface 92 a of the cover 90 outside the O-ring 900 due to molding distortion or the like of the housing main body 51 or the cover 90. A slight gap G may be formed. When the liquid L containing a component that promotes metal corrosion such as salt enters into the gap G, the cover 90 may be corroded in that portion. Further, since the flanges 93 are provided at the four corners of the cover 90, the outer shape of the electric pump 9 becomes large, and the restriction on mounting on the vehicle becomes large.

(Operation and effect of the embodiment)
According to the present embodiment described above, since the control unit 4 is disposed inside the housing lid 52 including the metal cover member 6, the heat generated in the switching element 43 or the like is transmitted through the metal cover member 6. Heat is dissipated to the outside. Thereby, high heat dissipation can be secured. Further, since the metal cover member 6 and the annular resin member 7 are integrally joined, no salt water or the like gets in between the metal cover member 6 and the annular resin member 7 and corrosion of the metal cover member 6 is caused. Can be suppressed. Furthermore, since the annular resin member 7 is welded to the housing main body 51, it is possible to reliably prevent the entry of moisture into the housing 5 from between the annular resin member 7 and the housing main body 51.

(Supplementary note)
As mentioned above, although this invention was demonstrated based on embodiment, these embodiments do not limit the invention which concerns on a claim. In addition, it should be noted that not all combinations of features described in the embodiments are essential to the means for solving the problems of the invention.

  Further, the present invention can be appropriately modified and implemented without departing from the scope of the invention. For example, although the case where the metal cover member 6 is made of die-cast aluminum alloy has been described in the above embodiment, the present invention is not limited to this. For example, the metal cover member 6 is formed by forging an iron-based metal. It is also good. Moreover, the fluid which the pump part 2 discharges may be not only oil but water, for example.

  Furthermore, although the case where the electric pump 1 is configured by combining the pump unit 2 with the control function-equipped actuator 10 in the above embodiment has been described, the application of the control function-equipped actuator 10 is not limited to this, for example It is also possible to apply the actuator with a control function of the present invention to a steering assist device that assists the steering operation of a steering wheel in a power steering apparatus.

DESCRIPTION OF SYMBOLS 1 ... Electric pump 10 ... Actuator 2 with a control function ... Pump part 21 ... Inner rotor 22 ... Outer rotor 24 ... Pump housing 3 ... Motor part (mechanism part) 31 ... Motor shaft 32 ... Rotor core 33 ... Permanent magnet 34 ... Stator core 4 ... Control unit 40 ... board 41 ... CPU (electronic component)
42: Memory (electronic component) 43: Switching element (electronic component)
44: Passive element (electronic component) 5: Housing 51: Housing body 52: Housing lid 6: Metal cover member 7: Annular resin member

Claims (3)

A mechanical unit that receives a supply of power and performs mechanical operation; and a control unit in which a plurality of electronic components for controlling the operation of the mechanical unit by controlling the power supplied to the mechanical unit are mounted on a substrate An actuator with a control function, comprising: a housing that accommodates the mechanical unit and the control unit,
The housing has a housing body having an opening at one end, and a housing lid closing the opening,
The mechanical portion is disposed inside the housing body, and at least a portion of the control portion is disposed inside the housing lid;
The housing lid includes a substantially flat metal cover member facing the substrate, and an annular resin member integrally joined to an edge of the metal cover member.
The annular resin member is made of a mold resin molded on the edge of the metal cover member,
The annular resin member of the housing lid is joined to the opening edge of the housing body,
Actuator with control function. The annular resin member is welded to the opening edge of the housing body made of resin.
An actuator with a control function according to claim 1. An actuator with a control function according to claim 1 or 2, and a pump unit driven by the mechanism unit and discharging a fluid.
The mechanism unit includes a stator core that generates a magnetic field by a current supplied from the control unit, a rotor core to which a magnet is attached, and a motor shaft that rotates with the rotor core with respect to the stator core.
The pump unit has a rotor that is rotated by the rotation of the motor shaft, and a pump housing that accommodates the rotor.
The pump housing is fastened to the housing body,
Electric pump.

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