CN209402336U - Electric actuator - Google Patents
Electric actuator Download PDFInfo
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- CN209402336U CN209402336U CN201822039948.4U CN201822039948U CN209402336U CN 209402336 U CN209402336 U CN 209402336U CN 201822039948 U CN201822039948 U CN 201822039948U CN 209402336 U CN209402336 U CN 209402336U
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Abstract
Electric actuator includes motor, has the motor drive shaft extended in the axial direction；Deceleration mechanism links with motor drive shaft；Shell stores motor and deceleration mechanism；Output section is passed the rotation of motor drive shaft via deceleration mechanism；1st rotation sensor detects the rotation of output section；Incorporating section is set to shell, stores the 1st rotation sensor；Holding member makes the 1st rotation sensor be held in incorporating section.Incorporating section includes the 1st recess portion, is recessed to the 1st direction side；Bearing surface is configured at the position that the 1st direction other side is leaned on than the bottom surface of the 1st recess portion towards the 1st direction other side.1st rotation sensor includes sensor main body, is accommodated in the 1st recess portion, has sensor chip；Protrusion, it is prominent from sensor main body to 2nd direction vertical with the 1st direction.Protrusion supported surface is from one side bearing of the 1st direction.Bottom surface of the sensor main body to the 1st direction other side far from the 1st recess portion and configure.
Description
Technical field
The utility model relates to electric actuators.
Background technique
Rotary actuator shown in Japanese Unexamined Patent Publication 2013-247798 bulletin, which has, carries out rotation driving to input shaft
Motor makes the rotation of input shaft slow down and is transferred to the retarder of output shaft and stores the shell of motor and retarder.
In rotary actuator as described above, consider that the rotation sensor for the rotation that will test output shaft is held in shell
Body.But in this case, the difference of the coefficient of thermal expansion of rotation sensor and shell cause the heat distortion amount of rotation sensor with
The heat distortion amount of shell is different, and stress is applied to the sensor chip of rotation sensor sometimes.In this case, sensor chip
Deformation or damage reduces the detection accuracy of rotation sensor sometimes.
Utility model content
In view of the foregoing, one of the purpose of this utility model is, provides with the inspection for being able to suppress rotation sensor
Survey the electric actuator for the construction that precision reduces.
The electric actuator of one mode of the utility model includes motor, has the motor drive shaft extended in the axial direction；
Deceleration mechanism links with the motor drive shaft；Shell stores the motor and the deceleration mechanism；Output section, via institute
It states deceleration mechanism and is passed the rotation of the motor drive shaft；1st rotation sensor examines the rotation of the output section
It surveys；Incorporating section is set to the shell, stores the 1st rotation sensor；And holding member, make the 1st rotation
Sensor is held in the incorporating section.The incorporating section includes the 1st recess portion, is recessed to the 1st direction side；And bearing surface,
It is configured at the position that the 1st direction other side is leaned on than the bottom surface of the 1st recess portion towards the 1st direction other side.Institute
It states the 1st rotation sensor and includes sensor main body, be accommodated in the 1st recess portion, there is sensor chip；And protrusion,
It is prominent from the sensor main body to 2nd direction vertical with the 1st direction.The protrusion is by the bearing surface from institute
State one side bearing of the 1st direction.Bottom surface of the sensor main body towards the 1st direction other side far from the 1st recess portion and
Configuration.
A mode according to the present utility model provides the structure reduced with the detection accuracy for being able to suppress rotation sensor
The electric actuator made.
Referring to attached drawing and by below to the detailed description of preferred embodiment, the utility model above-mentioned and other
Element, feature, step, features and advantages will become apparent.
Detailed description of the invention
Fig. 1 is the cross-sectional view for showing the electric actuator of present embodiment.
Fig. 2 is the perspective view for showing a part of rotation detection device of present embodiment.
Fig. 3 is the figure of a part of the rotation detection device of present embodiment from upside.
Fig. 4 is the figure for alongst observing a part of rotation detection device of present embodiment.
Fig. 5 is the figure for showing a part of rotation detection device of present embodiment, is the cross-sectional view of the V-V line along Fig. 3.
Fig. 6 is the figure for showing a part of rotation detection device of present embodiment, is the section view of the line VI -- VI along Fig. 3
Figure.
Fig. 7 is the figure of an example the case where mistakenly assembling rotation detection device from upside.
Fig. 8 is the figure of an example for the case where alongst observation will mistakenly assemble rotation detection device.
Specific embodiment
In the various figures, Z-direction is using positive side as upside, using negative side as the up and down direction of downside.It fits in the various figures
When the axial direction of the central axis J1 shown is parallel with Z-direction, i.e. up and down direction.X-direction is hung down with Z-direction, i.e. axial direction Z
Straight direction.Y direction is the direction vertical with axial Z and this both sides of X-direction.It in the following description, will be with central axis
The parallel direction of the axial direction of line J1 is referred to as " axial Z ", and the direction parallel with X-direction is known as " length direction X ", will be with Y
The parallel direction of axis direction is known as " short side direction Y ".In addition, the radial direction centered on central axis J1 is referred to as " radial direction ",
Circumferential direction centered on central axis J1 is referred to as " circumferential direction ".
In the present embodiment, axial Z is equivalent to the 1st direction.Short side direction Y is equivalent to the 2nd direction and the 3rd direction.Separately
Outside, downside is equivalent to the 1st direction side, and upside is equivalent to the 1st direction other side.In addition, the upper side and lower side is only intended to each
The title that partial relative positional relationship is illustrated, actual configuration relation etc., which is also possible to configure shown in these titles, to close
Configuration relation etc. other than system etc..
As shown in Figure 1 to Figure 3, the electric actuator 10 of present embodiment has shell 11, motor 20, control unit 24, connects
Connect device portion 80, deceleration mechanism 30, output section 40, rotation detection device 60, the 1st wiring part 91, the 2nd wiring part 92, the 1st axis
The 51, the 2nd bearing 52, the 3rd bearing 53 and bushing 54 are held, which has the horse extended on the axial Z of central axis J1
Up to axis 21.1st bearing 51, the 2nd bearing 52 and the 3rd bearing 53 are, for example, ball bearing.
As shown in Figure 1, shell 11 stores motor 20 and deceleration mechanism 30.Shell 11 has the motor shell of storage motor 20
12 and storage deceleration mechanism 30 deceleration mechanism shell 13.Motor shell 12 has shell canister portion 12a, upper cover part 12c, Circular Plate
Portion 12b, bearing cage 12e, control base board incorporating section 12f, the wiring maintaining part 14 of terminal retention portion 12d and the 1st.
Shell canister portion 12a is in the cylindrical shape extended on axial Z centered on central axis J1.Shell canister portion 12a is to axis
To the both-side opening of Z.Shell canister portion 12a has the 1st opening portion 12g to lower opening.That is, motor shell 12 has the 1st to open
Oral area 12g.The radial outside of shell canister portion 12a encirclement motor 20.Circular Plate portion 12b be in from the inner circumferential of shell canister portion 12a towards
The annulus plate of radially inner side extension.Circular Plate portion 12b covers the upside of the aftermentioned stator 23 of motor 20.Bearing cage
12e is set to the radially inner edge portion of Circular Plate portion 12b.Bearing cage 12e keeps the 3rd bearing 53.
Control base board incorporating section 12f is the part for storing aftermentioned control base board 70.Control base board incorporating section 12f is in shell
The radially inner side of the upper portion of canister portion 12a is constituted.The bottom surface of control base board incorporating section 12f is the upper surface of Circular Plate portion 12b.
The upward side opening of control base board incorporating section 12f.Upper cover part 12c is the plate for closing the upper end opening of control base board incorporating section 12f
Lid.Terminal retention portion 12d is prominent from shell canister portion 12a to radial outside.Terminal retention portion 12d is in be open to radial outside
It is cylindric.Terminal retention portion 12d keeps aftermentioned terminal 81.
1st wiring maintaining part 14 is prominent from shell canister portion 12a to radial outside.In Fig. 1, the 1st wiring maintaining part 14 from
Shell canister portion 12a is prominent to the positive side of length direction X.1st wiring maintaining part 14 extends on axial Z.1st wiring maintaining part 14
Upper end axial position it is roughly the same with the axial position of Circular Plate portion 12b.The circumferential position example of 1st wiring maintaining part 14
It is such as different from the circumferential position of connector portion 80.
Deceleration mechanism shell 13 has bottom wall part 13a, canister portion 13b, the prominent wiring of canister portion 13c and the 2nd maintaining part 15.Bottom
Wall portion 13a is in the annulus plate centered on central axis J1.The downside of bottom wall part 13a covering deceleration mechanism 30.Canister portion 13b is in
The cylindrical shape upwardly projecting from the radially outer edge portion of bottom wall part 13a.The upward side opening of canister portion 13b.The upper end of canister portion 13b with
The lower end of shell canister portion 12a contacts and is fixed.Prominent canister portion 13c is in from the radially inner edge portion of bottom wall part 13a in the axial direction two
Side cylindrical shape outstanding.Protrude canister portion 13c both-side opening in the axial direction.The upper-end part of driving of prominent canister portion 13c is in upper than canister portion 13b
The position of end on the lower.
The cylindric bushing 54 extended on axial Z is configured in the inside of prominent canister portion 13c.Bushing 54 and protruding cylinder
Portion 13c is chimeric, to be fixed in prominent canister portion 13c.Bushing 54 has in upper end to radial outside flange part outstanding.Lining
The flange part of set 54 is contacted from upside with the upper end of prominent canister portion 13c.
2nd wiring maintaining part 15 is prominent from canister portion 13b to radial outside.In Fig. 1, the 2nd is routed maintaining part 15 from canister portion
13b is prominent to the positive side of length direction X.2nd wiring maintaining part 15 is configured at the downside of the 1st wiring maintaining part 14.2nd wiring is protected
Portion 15 is held for example in the box-like of hollow and upward side opening.The inside of 2nd wiring maintaining part 15 is connected with the inside of canister portion 13b.
Deceleration mechanism shell 13 has the 2nd opening portion 13h.In the present embodiment, the 2nd opening portion 13h is opened by the upside of canister portion 13b
The opening of the upside of mouth and the 2nd wiring maintaining part 15 is constituted.
As shown in figure 4, deceleration mechanism shell 13 has the 1st retaining lugs 17 and the 2nd retaining lugs 18.1st retaining lugs
17 and the 2nd retaining lugs 18 is in from upwardly projecting cylindric of bottom wall part 13a.1st retaining lugs 17 and the 2nd retaining lugs 18
Separate configuration in the circumferential.1st retaining lugs 17 is configured at the position that radially inner side is leaned on than the 2nd retaining lugs 18.
The upper surface of 1st retaining lugs 17 is the 1st shell side stationary plane 17a.The upper surface of 2nd retaining lugs 18 is the 2nd
Shell side stationary plane 18a.That is, shell 11 has the 1st shell side stationary plane 17a and the 2nd shell side stationary plane 18a.1st shell side
Stationary plane 17a and the 2nd shell side stationary plane 18a is the face fixed for aftermentioned incorporating section 100.
1st shell side stationary plane 17a and the 2nd shell side stationary plane 18a is the flat surface vertical with axial Z.1st shell side
Stationary plane 17a and the 2nd shell side stationary plane 18a are configured at position different from each other on axial Z.1st shell side stationary plane 17a
It is configured at the position more upper than the 2nd shell side stationary plane 18a.1st retaining lugs 17 has from the 1st shell side stationary plane 17a
The 1st internal thread hole 17b being recessed to downside.2nd retaining lugs 18, which has, to be recessed to downside from the 2nd shell side stationary plane 18a
2nd internal thread hole 18b.
As shown in Figure 1, motor shell 12 and deceleration mechanism shell 13 are in the 1st opening portion 12g and the 2nd opening portion 13h in axis
To on Z it is opposed in the state of be fixed to one another.In the present embodiment, the end of the downside of motor shell 12 includes shell canister portion
The end of the end of the downside of 12a and the downside of the 1st wiring maintaining part 14.In the present embodiment, deceleration mechanism shell 13
The end of upside includes the end of the end of the upside of canister portion 13b and the upside of the 2nd wiring maintaining part 15.Motor shell 12 with
In the state that deceleration mechanism shell 13 is fixed to one another, the inside of the inside of the 1st opening portion 12g and the 2nd opening portion 13h phase each other
Even.
Motor 20 has motor drive shaft 21, rotor 22 and stator 23.Motor drive shaft 21 is by the 1st bearing 51, the 2nd bearing 52 and
The bearing of 3 bearings 53 is that can rotate around central axis J1.The upper end of motor drive shaft 21 penetrates through bearing cage 12e along axial Z and compares
Circular Plate portion 12b is upwardly projecting.The eccentric axial portion 21a as the part supported by the 2nd bearing 52 in motor drive shaft 21 is with inclined
Extend centered on mandrel J2, eccentric shaft J2 is parallel with central axis J1 and eccentric relative to central axis J1.
Rotor 22 has the cylindric rotor core for the outer peripheral surface for being fixed on motor drive shaft 21 and is fixed on rotor core
The magnet of outer peripheral surface.Stator 23 has the cricoid stator core for the radial outside for surrounding rotor 22 and is installed on stator core
Multiple coils.Stator 23 is fixed on the inner peripheral surface of shell canister portion 12a.Motor 20 is held in motor shell 12 as a result,.
Control unit 24 has control base board 70, the 2nd installing component 73, the 2nd magnet 74 and the 2nd rotation sensor 71.That is, electric
Dynamic actuator 10 has control base board 70, the 2nd installing component 73, the 2nd magnet 74 and the 2nd rotation sensor 71.
Control base board 70 is in the plate extended in the plane vertical with axial Z.Control base board 70 is accommodated in motor shell
12.More specifically, control base board 70 is accommodated in the 12f of control base board incorporating section, is matched to upside far from Circular Plate portion 12b
It sets.Control base board 70 is the substrate being electrically connected with motor 20.The coil of stator 23 is electrically connected with control base board 70.Control base board 70
Such as the electric current for being supplied to motor 20 is controlled.That is, for example equipped with inverter circuit in control base board 70.
2nd installing component 73 is in the annular shape centered on central axis J1.The inner peripheral surface of 2nd installing component 73 is fixed on
The outer peripheral surface of the upper end of motor drive shaft 21.2nd installing component 73 is configured at the upside of the 3rd bearing 53 and bearing cage 12e.The
2 installing components 73 are for example made of nonmagnetic material.In addition, the 2nd installing component 73 can also be made of magnetic substance.
2nd magnet 74 is in the annular shape centered on central axis J1.2nd magnet 74 is fixed on the 2nd installing component 73
The upper surface in radially outer edge portion.2nd magnet 74 is not particularly limited to the fixing means of the 2nd installing component 73, such as can be with
It is bonded by bonding agent.2nd installing component 73 and the 2nd magnet 74 are rotated together with motor drive shaft 21.2nd magnet 74 is configured at
The upside of 3rd bearing 53 and bearing cage 12e.2nd magnet 74 has the pole N and the pole S being circumferentially alternately arranged.2nd magnetic
The upper surface of iron 74 is covered by magnet cover.
2nd rotation sensor 71 is the sensor detected to the rotation of motor 20.2nd rotation sensor 71 is installed on
The lower surface of control base board 70.The magnet cover of 2nd rotation sensor 71 and the upper surface of the 2nd magnet 74 of covering and the 2nd magnet 74
It is opposed on axial Z across gap.2nd rotation sensor 71 detects the magnetic field generated by the 2nd magnet 74.2nd rotation sensor
71 be, for example, Hall element.Although illustration omitted, the 2nd rotation sensor 71 is circumferentially provided with multiple (such as 3).It is logical
It crosses and the variation in magnetic field caused by the 2nd magnet 74 rotated together with motor drive shaft 21 is examined using the 2nd rotation sensor 71
It surveys, is able to detect the rotation of motor drive shaft 21.
Connector portion 80 is the part connect with the electrical wiring outside shell 11.Connector portion 80 is set to motor shell
Body 12.Connector portion 80 has above-mentioned terminal retention portion 12d and terminal 81.Terminal 81 be embedded in terminal retention portion 12d and by
It keeps.Control base board 70 is fixed in one end of terminal 81.The other end of terminal 81 exposes via the inside of terminal retention portion 12d
To the outside of shell 11.In the present embodiment, terminal 81 is, for example, busbar.
External power supply is connect through not shown electrical wiring with connector portion 80.More specifically, external power supply is installed on
The part of terminal retention portion 12d, electrical wiring and terminal 81 outstanding into terminal retention portion 12d possessed by external power supply are electrically connected
It connects.Control base board 70 is electrically connected by terminal 81 with electrical wiring as a result,.Therefore, in the present embodiment, via terminal 81 and control
Substrate 70 provides power supply from external power supply to the coil of stator 23.
Deceleration mechanism 30 is configured at the radial outside of the part of the downside of motor drive shaft 21.Deceleration mechanism 30 is accommodated in speed reducer
The inside of structure shell 13.Deceleration mechanism 30 is configured between bottom wall part 13a and the axial Z of motor 20.Deceleration mechanism 30 has outer
Gear 31, internal-gear 33 and annular portion 43.
External tooth gear 31 is centered on the eccentric shaft J2 of eccentric axial portion 21a, in the plane extension vertical with axial Z
Substantially annulus plate.The radial outer side of external tooth gear 31 is provided with gear part.External tooth gear 31 is via the 2nd bearing 52 and horse
It is connected up to axis 21.Deceleration mechanism 30 and motor drive shaft 21 link as a result,.External tooth gear 31 is from the outer of radial outside and the 2nd bearing 52
Circle is chimeric.As a result, the 2nd bearing 52 by motor drive shaft 21 with external tooth gear 31 can connect in a manner of eccentric shaft J2 relative rotation
Knot.
External tooth gear 31 has multiple pins 32.Pin 32 is outstanding cylindric in downward side.Although illustration omitted, multiple pins
32 on the whole week along circumferentially equally spaced configuring centered on eccentric shaft J2.
Internal-gear 33 surrounds the radial outside of external tooth gear 31 and fixes, and engages with external tooth gear 31.Internal-gear 33
In the annular shape centered on central axis J1.The radially outer edge portion of internal-gear 33 is configured at stage portion and is fixed, this
Rank portion is set to the inner peripheral surface of canister portion 13b and is recessed to radial outside.Deceleration mechanism 30 is held in deceleration mechanism shell as a result,
13.The inner peripheral surface of internal-gear 33 is provided with gear part.The gear part of internal-gear 33 and the gear part of external tooth gear 31 are nibbled
It closes.More specifically, the gear part of internal-gear 33 is engaged with the gear part of external tooth gear 31 in a part.
Annular portion 43 is a part of output section 40.Annular portion 43 is configured at the downside of external tooth gear 31.Annular portion 43 is in
The annulus plate extended radially centered on central axis J1.Annular portion 43 is contacted from upside with the flange part of bushing 54.
Annular portion 43 has multiple hole 43a that annular portion 43 is penetrated through on axial Z.Although illustration omitted, the axially Z of hole 43a
The shape of observation is in rounded shape.The internal diameter of hole 43a is greater than the outer diameter of pin 32.The multiple pins 32 for being set to external tooth gear 31 lead to respectively
Cross multiple hole 43a.The outer peripheral surface of pin 32 and the inner peripheral surface of hole 43a are inscribed.The inner peripheral surface of hole 43a is via pin 32 by external tooth gear 31
Bearing is that can swing around central axis J1.
Output section 40 is the part for exporting the driving force of electric actuator 10.Output section 40 has annular portion 43, cylindrical portion
42 and output shaft 41.Cylindrical portion 42 is in the cylindrical shape extended from the inner edge of annular portion 43 to downside.Cylindrical portion 42 is in have
Bottom and the upwards cylindrical shape of side opening.Cylindrical portion 42 is chimeric with the radially inner side of bushing 54.1st bearing 51 is fixed on cylindrical portion
42 inner peripheral surface.As a result, the 1st bearing 51 by motor drive shaft 21 with output section 40 can link in a manner of relative rotation each other.Horse
Up to axis 21 lower end in the inside of cylindrical portion 42.The upper surface of the bottom of the lower end surface and cylindrical portion 42 of motor drive shaft 21 across
Gap is opposed.
Output shaft 41 extends on axial Z, is configured at the downside of motor drive shaft 21.In the present embodiment, output shaft
41 in cylindric centered on central axis J1.Output shaft 41 extends from the bottom of cylindrical portion 42 to downside.Output shaft
41 pass through the inside of prominent canister portion 13c.The lower end of output shaft 41 side more downward than prominent canister portion 13c is prominent.In output shaft
41 lower end is equipped with other components of the driving force of output electric actuator 10.In the present embodiment, output section 40
It is a component.
When motor drive shaft 21 is rotated around central axis J1, eccentric axial portion 21a is centered on central axis J1 in circumferential revolution.
The revolution of eccentric axial portion 21a is transferred to external tooth gear 31 via the 2nd bearing 52, external tooth gear 31 hole 43a inner peripheral surface with
Swing while the inscribed position of the outer peripheral surface of pin 32 changes.The gear part of external tooth gear 31 and internal-gear 33 as a result,
Gear part engagement position in circumferential variation.Therefore, in the rotary force of motor drive shaft 21 is transferred to via external tooth gear 31
Gear 33.
Here, in the present embodiment, since internal-gear 33 is fixed, without rotation.Therefore, transmitting is utilized
To the reaction force of the rotary force of internal-gear 33, external tooth gear 31 is rotated around eccentric shaft J2.At this point, the rotation of external tooth gear 31
Direction and the rotation of motor drive shaft 21 direction be opposite direction.External tooth gear 31 around eccentric shaft J2 rotation via hole 43a and
Pin 32 and be transferred to annular portion 43.Output section 40 is rotated around central axis J1 as a result,.In this way, the rotation of motor drive shaft 21 is via subtracting
Fast mechanism 30 and be transferred to output section 40.
The rotation of output section 40 is set to slow down relative to the rotation of motor drive shaft 21 by deceleration mechanism 30.Specifically, at this
In the structure of the deceleration mechanism 30 of embodiment, the rotation of output section 40 is indicated relative to the reduction ratio R of the rotation of motor drive shaft 21
For R=- (N2-N1)/N2.Indicate that the negative sign of the starting of the formula of reduction ratio R indicates the direction of the rotation relative to motor drive shaft 21
For, being oriented for the rotation for the output section 40 being decelerated is reversed.N1 is the number of teeth of external tooth gear 31, and N2 is internal-gear 33
The number of teeth.As an example, in the case where the number N of teeth 2 that the number N of teeth 1 of external tooth gear 31 is 59 internal-gears 33 is 60, reduction ratio R
It is -1/60.
In this way, deceleration mechanism 30 according to the present embodiment, can make the rotation of output section 40 relative to motor drive shaft 21
The reduction ratio R of rotation becomes larger.Therefore, the rotation torque of output section 40 can be made to become larger.
Rotation detection device 60 detects the rotation of output section 40.At least part of rotation detection device 60 configures
In with cylindrical portion 42 in radially superposed position.Rotation detection device 60 is accommodated in deceleration mechanism shell 13.Rotation detection device
60 have the 1st magnet 63, incorporating section 100, the 1st rotation sensor 62 and holding member 61.That is, electric actuator 10 has the
1 magnet 63, incorporating section 100, the 1st rotation sensor 62 and holding member 61.
1st magnet 63 is in the cylindrical shape centered on central axis J1.1st magnet 63 is fixed on the following table of annular portion 43
Face.1st magnet 63 is configured at the radial outside of the upper end of prominent canister portion 13c, cylindrical portion 42 and bushing 54, and surrounds protrusion
Upper end, cylindrical portion 42 and the bushing 54 of canister portion 13c.
Incorporating section 100 is set to shell 11, is the component for storing the 1st rotation sensor 62.In the present embodiment, it stores
Portion 100 is seperated component with shell 11.Therefore, the situation such for the shape of the 1st rotation sensor 62 of change, can pass through
It only replaces incorporating section 100 and is coped with.
As shown in Fig. 2, incorporating section 100 have incorporating section main body 110, bearing the 133,134, the 1st fixed part 121 of protrusion and
2nd fixed part 122.Incorporating section main body 110 is in length direction X longer, the flat cube box-like on axial Z.Incorporating section
Main body 110 is radially extending.Incorporating section main body 110 has the 1st recess portion being recessed from the upper surface of incorporating section main body 110 to downside
130.That is, incorporating section 100 has the 1st recess portion 130.As shown in figure 3, the inner edge of the 1st recess portion 130 and the bottom surface of the 1st recess portion 130
130a is when from upside in the longer oblong-shaped of length direction X.Bottom surface 130a is the flat surface vertical with axial Z.
As shown in Fig. 2, the bottom surface 130a of bearing protrusion 133,134 from the 1st recess portion 130 is upwardly projecting.Support protrusion
133,134 be in cubic.Bearing protrusion 133,134 upper end be configured at than incorporating section main body 110 upper surface on the lower
Position.Bearing protrusion 133 is connected with the side of the short side direction side in the medial surface of the 1st recess portion 130.Support protrusion 134
It is connected with the side of the short side direction other side in the medial surface of the 1st recess portion 130.In the present embodiment, short side direction side
It is the negative side of short side direction Y, is equivalent to the 2nd direction side.The short side direction other side is the positive side of short side direction Y, is equivalent to the 2nd
The direction other side.
As shown in figure 3, bearing protrusion 133 has the second recesses that the upper surface from bearing protrusion 133 is recessed to downside
133a.Bearing protrusion 134 has the second recesses 134a that the upper surface from bearing protrusion 134 is recessed to downside.That is, incorporating section 100
With second recesses 133a, 134a.An at least side opening of second recesses 133a, 134a to short side direction Y.Second recesses 133a to
Another side opening of short side direction.Second recesses 134a is to one side opening of short side direction.
As shown in figure 5, the bottom surface of second recesses 133a is bearing surface 133b.The bottom surface of second recesses 134a is bearing surface
134b.That is, incorporating section 100 has bearing surface 133b, 134b.Bearing surface 133b, 134b are configured at towards upside than the 1st recess portion
130 bottom surface 130a upper position.
As shown in figure 3, the size of the short side direction Y of bearing protrusion 133 is less than the ruler of the short side direction Y of bearing protrusion 134
It is very little.Bearing protrusion 133 is separately provided with 2 on length direction X.Bearing protrusion 134 is provided separately on length direction X
There are 2.Less than 2, the interval mutual length direction X in bearing protrusion 134 on 2 bearing mutual length direction X in protrusion 133
On interval.In length direction X, the position for supporting the position and bearing protrusion 134 of protrusion 133 is different from each other.As a result, in length
It spends on the X of direction, the position of bearing surface 133b and the position of bearing surface 134b are different from each other.
More specifically, protrusion 133 is held with this in the bearing protrusion 133 of the length direction side in 2 bearing protrusions 133
Bearing surface 133b is configured at the bearing protrusion 134 and the bearing protrusion 134 that the length direction side in protrusion 134 is supported than 2
Bearing surface 134b lean on the length direction other side position.The bearing protrusion of the length direction other side in 2 bearing protrusions 133
133 are configured at the bearing of the length direction other side in than 2 bearing protrusions 134 with the bearing surface 133b of the bearing protrusion 133
The bearing surface 134b of protrusion 134 and the bearing protrusion 134 leans on the position of length direction side.In the present embodiment, length side
It is the negative side of length direction X to side, is radially inner side.The length direction other side is the positive side of length direction X, is that diameter is outside
Side.
1st fixed part 121 is prominent from incorporating section main body 110 to short side direction side.The length direction X of 1st fixed part 121
Size on short side direction Y far from incorporating section main body 110 and become smaller.The end of the short side direction side of 1st fixed part 121
Arc-shaped of the shape in portion in axially Z observation Shi Chengxiang short side direction side protrusion.
As shown in figure 4, the 1st fixed part 121 has the through hole 121c for penetrating through the 1st fixed part 121 on axial Z.It is passing through
The cylindric casing 123a extended on axial Z is embedded in through-hole 121c.Axially Z is observed, the inside of casing 123a
It is Chong Die with the 1st internal thread hole 17b.1st fixed part 121 by the inside of casing 123a and is screwed into using from the upside of casing 123a
The screw 140 of 1st internal thread hole 17b and be fixed on the 1st retaining lugs 17.The 1st fixed part 121 is fixed in shell 11 as a result,.
The face of the downside of 1st fixed part 121 is the 1st incorporating section side stationary plane 121a.That is, incorporating section 100 has the 1st storage
Portion side stationary plane 121a.1st incorporating section side stationary plane 121a is contacted with the 1st shell side stationary plane 17a and is fixed.1st storage
Portion side stationary plane 121a is the flat face vertical with axial Z.
As shown in figure 3, the 2nd fixed part 122 is prominent from incorporating section main body 110 to the short side direction other side.2nd fixed part
The size of 122 length direction X becomes smaller on short side direction Y far from incorporating section main body 110.It is observed in axially Z
When, the shape of the end of the short side direction other side of the 2nd fixed part 122 is in the arc-shaped to short side direction other side protrusion.
As shown in figure 4, the 2nd fixed part 122 has the through hole 122c for penetrating through the 2nd fixed part 122 on axial Z.It is passing through
The cylindric casing 123b extended on axial Z is embedded in through-hole 122c.Axially Z is observed, the inside of casing 123b
It is Chong Die with the 2nd internal thread hole 18b.2nd fixed part 122 by the inside of casing 123b and is screwed into using from the upside of casing 123b
The screw 140 of 2nd internal thread hole and be fixed on the 2nd retaining lugs 18.The 2nd fixed part 122 is fixed on shell 11 as a result,.
The face of the downside of 2nd fixed part 122 is the 2nd incorporating section side stationary plane 122a.That is, incorporating section 100 has the 2nd storage
Portion side stationary plane 122a.2nd incorporating section side stationary plane 122a is contacted with the 2nd shell side stationary plane 18a and is fixed.2nd storage
Portion side stationary plane 122a is the flat face vertical with axial Z.
As shown in figure 3, on the length direction X vertical with axial Z and this both sides of short side direction Y, the 1st fixed part 121
Position and the position of the 2nd fixed part 122 are different from each other.Thus, for example in the state by incorporating section 100 to be inverted on axial Z
When being installed on shell 11, as shown in fig. 7, become incorporating section main body 110 extended direction relative to the inclined appearance of length direction X
State.Operator is easily noted that installation of the incorporating section 100 on axial Z towards mistake as a result,.Therefore, it is able to suppress mistakenly
Incorporating section 100 is assembled in shell 11.
In the present specification, " position of the 1st fixed part and the position of the 2nd fixed part are different from each other " includes the 1st fixed part
In the part for being fixed on shell by fixation members such as screws the different situation in position.That is, in the present embodiment, as long as
Make the length side of the position of the length direction X of the through hole 121c of the 1st fixed part 121 and the through hole 122c of the 2nd fixed part 122
It is different from each other to the position of X.
As shown in figure 4, the 1st incorporating section side stationary plane 121a and the 2nd incorporating section side stationary plane 122a is configured on axial Z
Position different from each other.That is, the 1st shell side stationary plane 17a and the 1st incorporating section side stationary plane 121a that are in contact with each other with connect each other
The 2nd shell side stationary plane 18a and the 2nd incorporating section side stationary plane 122a of touching are configured at position different from each other on axial Z.Cause
This, such as so that the 1st fixed part 121 is fixed on the 2nd retaining lugs 18, the 2nd fixed part 122 is made to be fixed on the 1st retaining lugs
When 17, the height of any one incorporating section side stationary plane and shell side stationary plane is inconsistent.Thereby, it is possible to inhibit each fixed part
It is fixed on the retaining lugs of mistake.Therefore, it can further suppress and incorporating section 100 is mistakenly assembled in shell 11.
In the present embodiment, the 1st shell side stationary plane 17a being in contact with each other and the 1st incorporating section side stationary plane 121a match
It is placed in the position more upper than the 2nd shell side stationary plane 18a being in contact with each other and the 2nd incorporating section side stationary plane 122a.1st storage
The upside of the distance L and the 1st fixed part 121 on axial Z between portion side stationary plane 121a and the 2nd incorporating section side stationary plane 122a
Face 121b and the 2nd fixed part 122 upside face 122b between axial Z on distance it is different.Thus, for example will receive
Portion 100 is received when being installed on shell 11 with the state inverted on axial Z, as shown in figure 8, any one fixed part and retaining lugs
Height it is inconsistent, so that each retaining lugs cannot be fixed on for incorporating section 100.Therefore, it can further suppress incorporating section
100 are mistakenly assembled in shell 11.
As shown in figure 4, in the present embodiment, the face 121b of the upside of the 1st fixed part 121 is upper with the 2nd fixed part 122
The face 122b of side is configured at same position on axial Z.Therefore, the face 121b and the 2nd fixed part of the upside of the 1st fixed part 121
The distance on axial Z between the face 122b of 122 upside is zero.According to this structure, compared to by the upper of the 1st fixed part 121
The case where face 122b of the upside of the face 121b and the 2nd fixed part 122 of side is configured at the different positions on axial Z is easy system
Make incorporating section 100.Size of the size of the axial Z of 1st fixed part 121 less than the axial Z of the 2nd fixed part 122.
1st rotation sensor 62 detects the rotation of output section 40.1st rotation sensor 62 is, for example, Hall member
Part.As shown in figure 3, the 1st rotation sensor 62 has sensor main body 64, dashes forward as the 1st protrusion 65a of protrusion and the 2nd
Play portion 65b and multiple sensor terminal 66a, 66b, 66c.Sensor main body 64 is in extend on length direction X and in axis
The flat substantially cubic on Z.Sensor main body 64 is accommodated in the 1st recess portion 130.Sensor main body 64 has part 1
64a, part 2 64b and interconnecting piece 64c.Part 1 64a is in substantially square shape when from upside.Part 1 64a
There is sensor chip 64d in inside.That is, sensor main body 64 has sensor chip 64d.
As shown in Fig. 2, sensor chip 64d is configured at the downside of the 1st magnet 63.Sensor chip 64d is to the 1st magnet 63
It is detected in generated magnetic field.The 1st magnet 63 rotated together with output section 40 by using 64d Duis of sensor chip is produced
The variation in raw magnetic field is detected, and the 1st rotation sensor 62 can detect the rotation of output section 40.
Part 2 64b is configured at the length direction other side, the i.e. radial outside of part 1 64a.Part 2 64b from
It is in substantially square shape when upside is observed.Sensor terminal 66a, 66b, 66c are maintained on part 2 64b.Interconnecting piece 64c
Part 1 64a is connected with part 2 64b.Interconnecting piece 64c is by sensor chip 64d and sensor terminal 66a, 66b, 66c
Electrical connection.
As shown in figure 3, the 1st protrusion 65a and the 2nd protrusion 65b are from sensor main body 64 to the short side vertical with axial Z
Direction Y is prominent.1st protrusion 65a is prominent from sensor main body 64 to short side direction side.2nd protrusion 65b is from sensor master
Body 64 is prominent to the short side direction other side.Plate 1st protrusion 65a and the 2nd protrusion 65b vertical with axial direction Z in plate face.
As shown in figure 5, the 1st protrusion 65a supported surface 133b is from lower side bearing.2nd protrusion 65b supported surface 134b
From lower side bearing.It is each since bearing surface 133b, 134b are configured at the position more upper than the bottom surface 130a of the 1st recess portion 130
The bearing of protrusion supported surface 133b, 134b, thus bottom surface 130a of the sensor main body 64 to upside far from the 1st recess portion 130 and
Configuration.Thereby, it is possible to keep sensor main body 64 to sensor main body 64 far from incorporating section 100.Therefore, it is sensing
In the case that the coefficient of thermal expansion of device main body 64 is different from the coefficient of thermal expansion of incorporating section 100, even if sensor main body 64 and incorporating section
100 thermal deformations, it is also difficult to apply stress to sensor main body 64.Therefore, it is able to suppress sensing possessed by sensor main body 64
Device chip 64d deformation or damage.In conclusion according to the present embodiment, obtains to have and be able to suppress the 1st rotation sensor
The electric actuator 10 for the construction that 62 detection accuracy reduces.
In addition, according to the present embodiment, due to being provided with the 1st protrusion 65a and the 2nd protrusion 65b as protrusion,
It therefore can be in the two-side supporting sensor main body 64 of short side direction Y.Therefore, more stably sensor main body 64 can be kept
In incorporating section 100.As shown in figure 3, the 1st protrusion 65a is chimeric with second recesses 133a.2nd protrusion 65b and second recesses 134a
It is chimeric.It therefore, can be fixed on length direction X by the 1st protrusion 65a and the 2nd protrusion 65b using second recesses 133a, 134a
Position, so as to position the 1st rotation sensor 62 on length direction X.
1st protrusion 65a and the 2nd protrusion 65b is respectively arranged with multiple.2 are separately provided on length direction X
1st protrusion 65a.2 the 1st protrusion 65a are respectively since part 1 64a and part 2 64b is prominent.Divide on length direction X
It is provided with 2 the 2nd protrusion 65b with opening.2 the 2nd protrusion 65b are respectively since part 1 64a and part 2 64b is prominent.?
On the length direction X vertical with axial Z and this both sides of short side direction Y, the position of the 1st protrusion 65a is with the 2nd protrusion 65b's
Position is different from each other.Therefore, when making the 1st rotation sensor 62, in short side direction Y reversion, each protrusion and each second recesses exist
Position on length direction X is staggered, it is difficult to keep each protrusion suitably chimeric with each second recesses.Thereby, it is possible to inhibit the 1st
Rotation sensor 62 is configured in the 1st recess portion 130 with the direction of mistake.
1st protrusion 65a of the length direction side in 2 the 1st protrusion 65a is configured at than 2 the 2nd protrusion 65b
In length direction side the 2nd protrusion 65b lean on the length direction other side position.Length in 2 the 1st protrusion 65a
1st protrusion 65a of the direction other side is configured at the 2nd protrusion than the length direction other side in 2 the 2nd protrusion 65b
65b leans on the position of length direction side.1st protrusion the 65a configuration space on length direction X and the 2nd protrusion 65b each other
Configuration space each other on length direction X is different from each other.Therefore, when make the 1st rotation sensor 62 short side direction Y invert
When, each protrusion cannot be made chimeric with each second recesses.Therefore, it can further suppress the 1st rotation sensor 62 with mistake
Direction is configured in the 1st recess portion 130.1st protrusion 65a each other the interval on length direction X less than the 2nd protrusion 65b that
This interval on length direction X.
Sensor terminal 66a, 66b, 66c extend from sensor main body 64 to the length direction other side, i.e. radial outside.It passes
Sensor terminal 66a, 66b, 66c is electrically connected via interconnecting piece 64c with sensor chip 64d.Multiple sensor terminal 66a, 66b,
66c is configured side by side on short side direction Y.Sensor terminal 66b is configured at the sensor terminal 66a on short side direction Y and passes
Between sensor terminal 66c.Sensor terminal 66b linearly extends on length direction X.Sensor terminal 66a, 66c difference
The 1st buckling portion is included, the separate sensor side from sensor main body 64 towards another side of length direction into short side direction Y
The side buckling of sub- 66b；And the 2nd buckling portion, in the length direction other side than the 1st buckling portion to the side sensor terminal 66b
Buckling.
Sensor terminal 66a, 66b, 66c are connect with the aftermentioned one end 92e of the 2nd wiring part 92 respectively.Sensor
Terminal 66a, 66b, 66c are configured to asymmetric relative to the center imaginary line IL of the short side direction Y by sensor main body 64.Cause
This, for example, to make the 1st rotation sensor 62 when inverting and configuring on short side direction Y, sensor terminal 66a, 66b, 66c's
Change in location on short side direction Y cannot be connect with each one end 92e.Therefore, it can further suppress the 1st rotation sensing
Device 62 is configured in the 1st recess portion 130 with the direction of mistake.
In the present embodiment, sensor terminal 66a is configured at the position that short side direction side is leaned on than imaginary line IL.Sensing
Device terminal 66b, 66c are configured at the position that the short side direction other side is leaned on than imaginary line IL.Sensor terminal 66a and sensor terminal
66c is configured to symmetrical relative to sensor terminal 66b on short side direction Y.1 in 3 sensor terminals 66a, 66b, 66c
Sensor terminal is the sensor terminal of signal transmitting, and another 1 sensor terminal is earthy sensor terminal, remaining
1 sensor terminal is the sensor terminal of power supply.
As shown in fig. 6, holding member 61 is the component that the 1st rotation sensor 62 is held in incorporating section 100.Holding member
61 are accommodated in the 1st recess portion 130.Sensor main body 64 is held in the medial surface of the 1st recess portion 130 by holding member 61.Holding member
61 be the elastomer being bonded with sensor main body 64.Therefore, it can be absorbed by 61 flexible deformation of holding member since heat is swollen
The difference of the heat distortion amount of the heat distortion amount and incorporating section 100 of 1st rotation sensor 62 caused by the difference of swollen rate.As a result, can
It enough further suppresses stress and is applied to sensor main body 64.Therefore, the detection essence of the 1st rotation sensor 62 can be further suppressed
Degree reduces.
In the present specification, " the 1st rotation sensor is held in incorporating section by holding member " includes holding member bearing the 1st
The case where at least part on the surface of rotation sensor.For example, holding member can be the following table of the 1st rotation sensor of bearing
The component in face and side.In addition, in the present specification, " medial surface that sensor main body is held in the 1st recess portion by holding member "
This both sides of at least part of the medial surface of at least part on the surface comprising holding member and sensor main body and the 1st recess portion
The case where contact.
In the present embodiment, holding member 61 is by flowing into the bonding agent of resin in the 1st recess portion 130 and solidifying
And constitute.That is, holding member 61 is the elastomer being made of bonding agent.It therefore, can be by the 1st rotation using holding member 61
Sensor 62 is more suitably held in the 1st recess portion 130.Holding member 61 is resin system.Being embedded in holding member 61 has
Sensor main body 64.Therefore, sensor main body 64 can be protected using holding member 61, is able to suppress oil etc. and is attached to sensor
Main body 64.It is whole that holding member 61 covers the 1st rotation sensor 62.In addition, in figure 2 and figure 3, holding member 61 is omitted
Diagram.
1st wiring part 91 and the 2nd wiring part 92 shown in FIG. 1 are electrically connected with rotation detection device 60.In this implementation
In mode, the 1st wiring part 91 and the 2nd wiring part 92 be for by the 1st rotation sensor 62 of rotation detection device 60 with
The connected wiring part of the control base board 70 of control unit 24.Although not shown, but in the present embodiment, the 1st wiring portion
Part 91 and the 2nd wiring part 92 are respectively arranged with 3.
In the present embodiment, the 1st wiring part 91 and the 2nd wiring part 92 are elongated and plate busbars.1st
Wiring part 91 is embedded in the 1st wiring maintaining part 14.The one end of 1st wiring part 91 is from the 1st wiring maintaining part 14 to downside
It is prominent, and it is exposed to the inside of the 2nd wiring maintaining part 15.The other end of 1st wiring part 91 is exposed to control base board storage
The inside of portion 12f is connect with control base board 70.
As shown in fig. 6, a part of the 2nd wiring part 92 is embedded in incorporating section 100 and is kept.2nd wiring part 92
One end 92e from the 1st recess portion 130 bottom surface 130a it is upwardly projecting, be exposed to the inside of the 1st recess portion 130.One end 92e
Upper end be configured at the upper surface position on the lower than incorporating section main body 110.One end 92e is embedded in holding member 61.
As shown in Fig. 2, the upper part of each one end 92e, at two strands, the gap in the upper end for each one end 92e for being divided into two strands is embedding
Enter to have that sensor terminal 66a, 66b, 66c's is respective.As a result, sensor terminal 66a, 66b, 66c respectively with 3 the 2nd wiring portions
The one end 92e connection of part 92, the 1st rotation sensor 62 are electrically connected with the 2nd wiring part 92.
3 one end 92e are circumferentially configured.The one end 92e for being configured at circumferential center in 3 one end 92e
It is configured at than the one end 92e for being configured at circumferential two sides in 3 one end 92e by the length direction other side, i.e. radial outside
Position.The other end of each 2nd wiring part 92 from the end of the length direction other side in the upper surface of incorporating section 100 to
Upside is prominent.The other end of each 2nd wiring part 92 is configured to arranged side by side along short side direction Y.
As shown in Figure 1, being routed maintaining part 14 from the 1st in the other end of the 2nd wiring part 92 and the 1st wiring part 91
Downward side one end connection outstanding.It is electrically connected the 1st wiring part 91 with the 2nd wiring part 92, via the 1st wiring
Component 91 and the 2nd wiring part 92 and be electrically connected the 1st rotation sensor 62 with control base board 70.
The utility model is not limited to above-mentioned embodiment, can be using other structures.Incorporating section and shell can also
Not to be seperated component.In this case, such as incorporating section is recessed to downside by being arranged in the bottom wall part of deceleration mechanism shell
The 1st sunken recess portion and constitute.Position on the axial Z of 1st shell side stationary plane and the 2nd shell side stationary plane can also be each other
It is identical.1st direction of the 1st recess portion recess is also possible to the direction different from axial direction Z.
On length direction X, the position of the 1st fixed part and the position of the 2nd fixed part can also be mutually the same.Incorporating section
Can not have the 1st fixed part and the 2nd fixed part.In this case, a part of the lower surface of incorporating section main body is also possible to
1st incorporating section stationary plane and the 2nd incorporating section stationary plane.In the above-described embodiment, bearing surface is the bottom surface of second recesses, but not
It is defined in this.Bearing surface is also possible to the edge of the 1st recess portion in the upper surface of incorporating section main body.Bearing surface is also possible to support
The upper surface of protrusion.Bearing protrusion is also configurable to the medial surface far from the 1st recess portion.It can also be supported on 1 bearing surface
There are multiple protrusions.
As long as the 1st rotation sensor can detect the rotation of output section, it is not particularly limited.1st rotation passes
Sensor is also possible to magnetoresistive element.As long as protrusion is at least provided with 1, quantity is not limited.Sensor terminal is arranged side by side
3rd direction be also possible to from protrusion the different direction in the 2nd direction outstanding.Multiple sensor terminals are also configurable to phase
It is symmetrical for imaginary line IL.2nd rotation sensor is also possible to magnetoresistive element.
As long as the 1st rotation sensor can be held in incorporating section by holding member, it is not particularly limited.Holding member
A part of sensor main body can only be covered.Holding member can also be made of the substance other than bonding agent.Deceleration mechanism
As long as structure can slow down to the rotation of motor drive shaft, it is not particularly limited.
The purposes of the electric actuator of the utility model is not defined, and the electric actuator of the utility model can be equipped on
Arbitrary equipment.In addition, above-mentioned each structure can be carried out in reconcilable range each other it is appropriately combined.
Claims (15)
1. a kind of electric actuator, includes
Motor has the motor drive shaft extended in the axial direction；
Deceleration mechanism links with the motor drive shaft；
Shell stores the motor and the deceleration mechanism；
Output section is passed the rotation of the motor drive shaft via the deceleration mechanism；
1st rotation sensor detects the rotation of the output section；
Incorporating section is set to the shell, stores the 1st rotation sensor；And
Holding member makes the 1st rotation sensor be held in the incorporating section,
It is characterized in that,
The incorporating section includes
1st recess portion is recessed to the 1st direction side；And
Bearing surface is configured at more another by the 1st direction than the bottom surface of the 1st recess portion towards the 1st direction other side
The position of side,
1st rotation sensor includes
Sensor main body is accommodated in the 1st recess portion, has sensor chip；And
Protrusion, it is prominent from the sensor main body to 2nd direction vertical with the 1st direction,
The protrusion by the bearing surface from one side bearing of the 1st direction,
Bottom surface of the sensor main body towards the 1st direction other side far from the 1st recess portion and configure.
2. electric actuator according to claim 1, which is characterized in that
The incorporating section is seperated component with the shell.
3. electric actuator according to claim 2, which is characterized in that
The incorporating section includes
Incorporating section main body, with the 1st recess portion；
1st fixed part, it is prominent from the incorporating section main body to the 3rd direction side vertical with the 1st direction；And
2nd fixed part, it is prominent from the incorporating section main body to the 3rd direction other side,
1st fixed part and the 2nd fixed part are fixed on the shell,
On the direction vertical with the 1st direction and described 3rd this both sides of direction, the position of the 1st fixed part with it is described
The position of 2nd fixed part is different from each other.
4. electric actuator according to claim 2, which is characterized in that
The shell has the 1st shell side stationary plane and 2nd shell side stationary plane fixed for the incorporating section,
The incorporating section includes
Incorporating section main body, with the 1st recess portion；
1st incorporating section side stationary plane is fixed face contact with the 1st shell side and is fixed；And
2nd incorporating section side stationary plane is fixed face contact with the 2nd shell side and is fixed,
The 1st shell side stationary plane being in contact with each other and the 1st incorporating section side stationary plane and the 2nd shell being in contact with each other
Side stationary plane and the 2nd incorporating section side stationary plane are configured at position different from each other on the 1st direction.
5. electric actuator according to claim 3, which is characterized in that
The shell has the 1st shell side stationary plane and 2nd shell side stationary plane fixed for the incorporating section,
The incorporating section includes
Incorporating section main body, with the 1st recess portion；
1st incorporating section side stationary plane is fixed face contact with the 1st shell side and is fixed；And
2nd incorporating section side stationary plane is fixed face contact with the 2nd shell side and is fixed,
The 1st shell side stationary plane being in contact with each other and the 1st incorporating section side stationary plane and the 2nd shell being in contact with each other
Side stationary plane and the 2nd incorporating section side stationary plane are configured at position different from each other on the 1st direction.
6. electric actuator according to claim 4, which is characterized in that
The incorporating section includes
1st fixed part, it is prominent from the incorporating section main body to the 3rd direction side vertical with the 1st direction；And
2nd fixed part, it is prominent from the incorporating section main body to the 3rd direction other side,
The face of the 1st direction side of 1st fixed part is the 1st incorporating section side stationary plane,
The face of the 1st direction side of 2nd fixed part is the 2nd incorporating section side stationary plane,
Distance on the 1st direction and institute between the 1st incorporating section side stationary plane and the 2nd incorporating section side stationary plane
It states between the face of the 1st direction other side of the 1st fixed part and the face of the 1st direction other side of the 2nd fixed part
The 1st direction on distance it is different.
7. electric actuator according to claim 6, which is characterized in that
The 1st direction other side in the face and the 2nd fixed part of the 1st direction other side of the 1st fixed part
Face is configured at same position on the 1st direction.
8. according to claim 1 to electric actuator described in any one in 7, which is characterized in that
The holding member is accommodated in the 1st recess portion, is the elastomer being bonded with the sensor main body, makes the sensor
Main body is held in the medial surface of the 1st recess portion.
9. electric actuator according to claim 8, which is characterized in that
The elastomer is made of bonding agent.
10. electric actuator according to claim 8, which is characterized in that
The sensor main body is embedded in the holding member.
11. according to claim 1 to electric actuator described in any one in 7, which is characterized in that
1st rotation sensor has the 1st protrusion and the 2nd protrusion as the protrusion, and the 1st protrusion is from institute
It is prominent to the 2nd direction side to state sensor main body, the 2nd protrusion is another from the sensor main body to the 2nd direction
Side is prominent.
12. electric actuator according to claim 11, which is characterized in that
On the direction vertical with the 1st direction and described 2nd this both sides of direction, the position of the 1st protrusion with it is described
The position of 2nd protrusion is different from each other.
13. electric actuator according to claim 12, which is characterized in that
1st protrusion and the 2nd protrusion be respectively arranged with it is multiple,
The interval that 1st protrusion configures each other and the interval that the 2nd protrusion configures each other are different from each other.
14. according to claim 1 to electric actuator described in any one in 7, which is characterized in that
The incorporating section has the second recesses being recessed to the 1st direction side,
The bearing surface is the bottom surface of the second recesses,
The protrusion is chimeric with the second recesses.
15. according to claim 1 to electric actuator described in any one in 7, which is characterized in that
The sensor main body has the multiple sensor terminals being electrically connected with the sensor chip,
The multiple sensor terminal configures on the 3rd direction side by side and relative to by described in the sensor main body
The imaginary line at the center on the 3rd direction asymmetricly configures.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2017-234307 | 2017-12-06 | ||
| JP2017234307A JP6965709B2 (en) | 2017-12-06 | 2017-12-06 | Electric actuator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209402336U true CN209402336U (en) | 2019-09-17 |
Family
ID=66977270
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201822039948.4U Active CN209402336U (en) | 2017-12-06 | 2018-12-06 | Electric actuator |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JP6965709B2 (en) |
| CN (1) | CN209402336U (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP7369678B2 (en) | 2020-09-28 | 2023-10-26 | ヒロセ電機株式会社 | Magnetic detection device and rotation detection device |
Family Cites Families (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH05196631A (en) * | 1992-01-22 | 1993-08-06 | Sumitomo Electric Ind Ltd | Magnetic sensor and manufacture thereof |
| JP3412276B2 (en) * | 1994-08-31 | 2003-06-03 | 株式会社デンソー | Rotation angle detector |
| JP2001289610A (en) * | 1999-11-01 | 2001-10-19 | Denso Corp | Angle-of-rotation detector |
| JP2007057322A (en) * | 2005-08-23 | 2007-03-08 | Hitachi Ltd | Rotation angle detection device |
| JP2007259605A (en) * | 2006-03-24 | 2007-10-04 | Mitsuba Corp | Motor with decelerator mechanism |
| JP4680136B2 (en) * | 2006-06-29 | 2011-05-11 | 愛三工業株式会社 | Rotation angle detector |
| DE102007030093A1 (en) * | 2006-06-29 | 2008-06-05 | Aisan Kogyo K.K., Obu | Rotation angle detection devices |
| JP4879711B2 (en) * | 2006-11-16 | 2012-02-22 | 愛三工業株式会社 | Rotation angle sensor and throttle device |
| JP2015023659A (en) * | 2013-07-18 | 2015-02-02 | 株式会社ミツバ | Motor with speed reducer and driving device |
| JP2015094645A (en) * | 2013-11-12 | 2015-05-18 | 日立オートモティブシステムズ株式会社 | Inertial force sensor device |
-
2017
- 2017-12-06 JP JP2017234307A patent/JP6965709B2/en active Active
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2018
- 2018-12-06 CN CN201822039948.4U patent/CN209402336U/en active Active
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| JP2019103328A (en) | 2019-06-24 |
| JP6965709B2 (en) | 2021-11-10 |
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