WO2014069312A1 - リアクトル、コンバータ、及び電力変換装置 - Google Patents
リアクトル、コンバータ、及び電力変換装置 Download PDFInfo
- Publication number
- WO2014069312A1 WO2014069312A1 PCT/JP2013/078745 JP2013078745W WO2014069312A1 WO 2014069312 A1 WO2014069312 A1 WO 2014069312A1 JP 2013078745 W JP2013078745 W JP 2013078745W WO 2014069312 A1 WO2014069312 A1 WO 2014069312A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- sensor
- coil
- reactor
- coil elements
- sensor holder
- Prior art date
Links
Images
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/40—Structural association with built-in electric component, e.g. fuse
- H01F27/402—Association of measuring or protective means
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/02—Casings
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/24—Magnetic cores
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/28—Coils; Windings; Conductive connections
- H01F27/2823—Wires
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F37/00—Fixed inductances not covered by group H01F17/00
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M3/00—Conversion of dc power input into dc power output
- H02M3/02—Conversion of dc power input into dc power output without intermediate conversion into ac
- H02M3/04—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters
- H02M3/10—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode
- H02M3/145—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal
- H02M3/155—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only
- H02M3/156—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only with automatic control of output voltage or current, e.g. switching regulators
- H02M3/158—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only with automatic control of output voltage or current, e.g. switching regulators including plural semiconductor devices as final control devices for a single load
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/40—Structural association with built-in electric component, e.g. fuse
- H01F27/402—Association of measuring or protective means
- H01F2027/406—Temperature sensor or protection
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M3/00—Conversion of dc power input into dc power output
- H02M3/02—Conversion of dc power input into dc power output without intermediate conversion into ac
- H02M3/04—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters
- H02M3/10—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode
- H02M3/145—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal
- H02M3/155—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only
Definitions
- the present invention relates to a reactor used as a component part of a power conversion device such as a vehicle-mounted DC-DC converter mounted on a vehicle such as a hybrid vehicle.
- the present invention relates to a reactor that can hold a sensor that measures a physical quantity (temperature, current value, etc.) during operation of the reactor at an appropriate position.
- Patent Document 1 discloses a reactor used for a converter mounted on a vehicle such as a hybrid vehicle.
- the reactor includes a coil having a pair of coil elements, an annular magnetic core in which the coil is disposed, and a case that houses a combination of the coil and the magnetic core, and a seal that is filled in the case.
- What has a stop resin (secondary resin part, potting resin) is disclosed.
- the reactor is generally used by being fixed to an installation target such as a cooling base so that the coil can be cooled.
- a sensor for measuring a physical quantity such as a coil temperature or current is arranged in the vicinity of the reactor to control the current to the coil according to the measured temperature or current. .
- Patent Document 1 discloses a reactor in which sensors are arranged between coil elements in a direction orthogonal to both the side-by-side direction of both coil elements and the axial direction of the coil elements.
- each coil element has a shape having a corner R portion with rounded corners, and a sensor is placed in a trapezoidal space along the coil axis direction between the corner R portions of each coil element.
- position is disclosed.
- This reactor has an insulator interposed between the coil and the magnetic core, and a sensor holding portion for pressing the temperature sensor toward the coil side is integrated with the insulator.
- the sensor is arranged in a trapezoidal space where the pressing force from both coil elements is not substantially applied.
- a configuration that maintains this arrangement state more stably is desired.
- the sensor holding part is integrally formed with the insulator, the trapezoidal space and the insertion port of the sensor into the space are narrow. For this reason, when the sensor is assembled to the sensor holding portion, a coil or the like may interfere with the sensor and is difficult to assemble. Further, in order to assemble the sensor to the sensor holding part, it is necessary to incline the sensor to some extent with respect to the coil axis direction, and the length of the sensor holding part along the coil axis direction is limited.
- a part of the sensor is not covered with the sensor holding part, and the sensor may drop off. Moreover, there is a possibility that the sensor cannot be reliably held at an appropriate position with respect to the coil at a location where the outer periphery of the sensor is not covered with the sensor holding portion.
- one of the objects of the present invention is to provide a reactor that can hold a sensor for measuring a physical quantity during operation of the reactor at an appropriate position and can easily assemble the sensor at that position.
- the other object of this invention is to provide the converter which provides the said reactor, and the power converter device which provides this converter.
- a reactor according to the present invention includes a coil including a pair of coil elements connected to each other, a pair of inner core portions disposed in each of the coil elements, and an outer core portion that connects these inner core portions to form a closed magnetic circuit. And an insulator interposed between the coil and the magnetic core. And the sensor which measures the physical quantity at the time of operation
- Each of the coil elements is a cylindrical body formed by winding a winding in a spiral shape, and the end face shape has a shape having a corner R portion with rounded corners, and the axes of the coil elements are parallel to each other. Are arranged in parallel.
- the sensor is disposed in a trapezoidal space sandwiched between the corner R portions disposed to face each other in the coil elements.
- the reactor of the present invention is small in size so that a sensor for measuring a physical quantity (coil temperature, etc.) during operation of the reactor can be held at an appropriate position.
- FIG. 5 is a VV cross-sectional view of FIG. 1.
- 1 is a schematic configuration diagram schematically showing a power supply system of a hybrid vehicle. It is a schematic circuit diagram which shows an example of the power converter device of Embodiment 4 which provides the converter of Embodiment 4.
- the shape of each coil element is set to a specific shape, and the position where the sensor for measuring the physical quantity (coil temperature, current, etc.) during operation of the reactor is set to a specific position, and a member for holding the sensor is provided.
- the above-mentioned object is achieved.
- the reactor according to the embodiment forms a closed magnetic circuit by connecting a coil including a pair of coil elements connected to each other, a pair of inner core portions arranged in each of the coil elements, and the inner core portions.
- a magnetic core having an outer core portion and an insulator interposed between the coil and the magnetic core.
- the reactor includes a sensor that measures a physical quantity during operation of the reactor, and a sensor holder that is configured by a member independent of the insulator and holds the sensor.
- Each of the coil elements is a cylindrical body formed by winding a winding in a spiral shape, and the end surface shape has a corner R portion with rounded corners so that the axes of the coil elements are parallel to each other. Are arranged in parallel.
- the sensor is arranged in a trapezoidal space sandwiched between the corner R portions arranged to face each other in the coil elements.
- the trapezoidal space is sufficient depending on the rounding radius of the corner R portion even when the regions sandwiched between the inner core portions of the pair of coil elements are brought close to each other. Since the space can be large, the sensor can be sufficiently installed. That is, when the sensor is arranged in the trapezoidal space, the gap between the two coil elements can be made smaller than the thickness of the sensor, and thus the reactor can be miniaturized.
- the trapezoidal space is a so-called dead space formed by winding a winding so as to provide a corner R portion.
- the dead space can be effectively used by arranging a sensor in the space. For this reason, the reactor is not substantially enlarged.
- the reactor according to the embodiment has a large part of the trapezoidal space sandwiched between the corner R portions deviated from the region sandwiched between both inner core portions. It is possible to reduce the stress caused by the coil element to be applied, and preferably not to be applied substantially.
- the reactor according to the embodiment includes the sensor holder independently of the insulator, so that the sensor can be assembled to the sensor holder in an independent process before the sensor holder is assembled to the insulator. Therefore, when the former is assembled, it is possible to prevent a coil or the like from interfering with the sensor, and it is easy to arrange the sensor and is excellent in productivity.
- the sensor can be assembled to the sensor holder, a sufficient space for the sensor can be secured around the sensor holder, so that it is not necessary to incline the sensor with respect to the sensor storage space of the sensor holder.
- the length of the portion of the sensor holder that is substantially along the sensor (for example, a holding portion to be described later) has a high degree of freedom, and this portion can hold a long range of the sensor.
- a length that can be reliably held can also be selected. Further, a length that can reliably contact the sensor with the coil can be selected.
- the sensor can be securely held at an appropriate position with respect to the coil, physical quantities such as the temperature and current of the coil that is the measurement object can be measured appropriately, and the reliability of the measured value is high.
- the reactor of the embodiment includes a sealing resin
- a combination of a coil and a magnetic core is accommodated in a case, the sealing resin is filled in the case, and the resin is cured.
- the sealing resin is filled, it is possible to prevent the sensor from floating due to the resin and being unable to measure at an appropriate position with respect to the coil.
- the sensor holder includes a holding unit that covers the sensor, and the holding unit has a length that is equal to or longer than the total length in the axial direction of the sensor.
- the sensor holder is large relative to the total axial length of the sensor, the sensor can be more firmly held at an appropriate position with respect to the coil, and the sensor can be prevented from falling off. Moreover, even if the holding part is a length that covers the entire length of the sensor, the sensor can be assembled to the sensor holder in a state independent of the insulator, so that the holding part does not become an obstacle during the assembly. In the case where the outer periphery of the sensor is not covered with sealing resin or the like, there is a possibility that the sensor may measure a physical quantity other than the coil that is the measurement object.
- the sensor is a temperature sensor that measures the temperature of a coil
- the temperature of the atmosphere may be measured in addition to the temperature of the coil.
- the reactor of the embodiment can reliably measure the physical quantity of the coil that is the measurement object by covering the entire sensor with the holding unit.
- the holding unit covers a part of the wiring connected to the sensor.
- the holding part further covers a part of the wiring connected to the sensor, so that the position of the wiring can be regulated, the wiring is excessively bent, or the wiring is routed to an unspecified position. It is possible to reduce the risk of disconnection and sensor damage due to the above.
- the reactor of the embodiment includes a sealing resin, when filling the sealing resin, the wiring hardly disturbs and the filling workability is excellent.
- each coil element serves as a guide for the sensor holder, and the sensor holder can be easily fixed.
- the partition portion is formed of an insulating material
- the partition portions are interposed between the coil elements, so that the coil elements can be sufficiently insulated, and the insulation is excellent.
- the partition part is formed of a material having excellent thermal conductivity
- the sensor is a temperature sensor, highly accurate temperature measurement can be performed by using the partition part as a heat transfer path from the coil.
- the sensor holder includes an engaging portion that engages with the insulator.
- the sensor holder is composed of a member independent of the insulator, but includes an engaging portion that engages with each other, and by engaging both, the sensor holder can be easily positioned. Further, the sensor holder can be more firmly fixed to the assembly of the assembly and the insulator, the sensor can be prevented from being displaced and dropped, and the assembly workability is excellent.
- a converter according to an embodiment includes the reactor according to the embodiment described in any one of (1) to (5) above.
- the converter of the embodiment is small by including the reactor of the small embodiment.
- the converter of the above-mentioned embodiment can be used suitably for the component of a power converter device.
- the power converter device which concerns on embodiment comprises the converter of the said embodiment.
- the power conversion device of the embodiment is small by including the converter of the small embodiment.
- the reactor 1 connects a coil 2 having a pair of coil elements 2a and 2b connected to each other, a pair of inner core portions 31 (FIG. 3) disposed in the coil elements 2a and 2b, and the inner core portions 31. And a magnetic core 3 having an outer core portion 32 forming a closed magnetic path, and an insulator 5 interposed between the coil 2 and the magnetic core 3. Furthermore, the sensor 7 (FIG. 2) which measures the physical quantity at the time of operation
- the main feature of the reactor 1 is that the shape of each coil element 2a, 2b, the position where the sensor 7 is disposed, and the sensor holder 8 that holds the sensor 7 are configured as separate members from the insulator 5. .
- the characteristic part will be described first, and then other configurations will be described in more detail.
- the coil 2 will be described mainly with reference to FIGS.
- the coil 2, the sensor 7, and the sensor holder 8 are mainly shown, and the insulator 5 and the like are omitted.
- the coil 2 includes a pair of coil elements 2a and 2b formed by spirally winding a single continuous winding 2w having no joint part, and a coil connecting part 2r for connecting both the coil elements 2a and 2b.
- Each coil element 2a, 2b is a hollow cylindrical body having the same number of turns, arranged in parallel (side by side) so that the respective axial directions are parallel, and wound on the other end side of coil 2 (right side in FIG. 3).
- a part of 2w is bent into a U shape to form a coil coupling portion 2r. With this configuration, the winding directions of both coil elements 2a and 2b are the same.
- it can be set as the coil which produced each coil element by a separate coil
- a coated wire having an insulating coating made of an insulating material on the outer periphery of a conductor made of a conductive material such as copper, aluminum, or an alloy thereof can be suitably used.
- the thickness of the insulating coating is preferably 20 ⁇ m or more and 100 ⁇ m or less, and the thicker the pinholes can be reduced, the higher the electrical insulation.
- the conductor is typically a rectangular wire, and various other cross-sectional shapes such as a circular shape, an elliptical shape, and a polygonal shape can be used.
- the rectangular wire is easier to form a coil with a high space factor as shown in FIG.
- the conductor is made of a copper flat wire
- the insulation coating is made of a coated flat wire made of enamel (typically polyamideimide), and each coil element 2a, 2b turns the covered flat wire into an edgewise winding. Edgewise coil.
- Both end portions 2e of the winding forming the coil 2 are appropriately extended from the turn forming portion on one end side (left side in FIG. 3) of the coil 2, and typically drawn out of the case 4 (FIG. 1). ).
- a terminal member (not shown) made of a conductive material is connected to the conductor portion exposed by peeling off the insulation coating at both ends 2e of the winding, and power is supplied to the coil 2 through the terminal member.
- An external device (not shown) such as a power source is connected.
- each of the coil elements 2a and 2b can be a shape obtained by rounding corners of a polygon other than the rectangle.
- the above-mentioned shape with rounded corners of the rectangle is (1) easy to wind the winding 2w and excellent in manufacturability of the coil.
- the inner peripheral shape is simple and similar to the inner peripheral shape of the coil element. There is an advantage that it is easy to form an inner core portion having a simple outer peripheral shape, and (3) a small dead space and a small size.
- the rounding radius of the corner R portion 21 can be selected as appropriate.
- the rounding radius may be selected in consideration of the size of the coil 2 and the size of the winding 2w to be used (width and thickness in the case of a flat wire).
- the coil 2 is an edgewise coil, it is easy to increase the rounding radius on the outer peripheral side in the winding 2w constituting the corner R portion 21, and the sensor 7 is placed between the adjacent coil elements 2a and 2b. It is easy to take a large trapezoidal space.
- a slight gap g is provided between the linear portions 22 as shown in FIG. 5 to enhance the insulation between the coil elements 2a and 2b.
- the gap g is smaller (for example, about 2 mm) than the thickness (for example, about 3 mm) of the sensor 7 described later.
- the gap g is secured by a partition portion 8c (FIGS. 4 and 5) of the sensor holder 8 described later.
- the coil 2 having the corner R portion 21 has a trapezoidal space sandwiched between the corner R portions 21 arranged to face each other in the coil elements 2 a and 2 b.
- This trapezoidal space is formed on the upper side and the lower side of the reactor 1. Since the trapezoidal spaces on both sides have the same size, the trapezoidal space formed on the upper side will be described below as an example.
- the trapezoidal space is formed by the intersection of the upper corner R portion 21 and the long linear portion 22 connected to the corner R portion 21 in one coil element 2a, and the upper corner R portion in the other coil element 2b.
- this trapezoidal space is an arrangement space for the sensor 7.
- the size of the trapezoidal space can be adjusted by the rounding radius of the corner R portion 21. If the rounding radius is large, the storage space for the sensor 7 tends to be large, and if the rounding radius is small, a small coil tends to be obtained.
- the sensor 7 is preferably arranged in a region not sandwiched between the inner core portions 31.
- an inner core portion 31 having an outer peripheral shape similar to the inner peripheral shape of the coil elements 2a and 2b is accommodated coaxially in each of the coil elements 2a and 2b, and connects the upper surfaces of these inner core portions 31.
- a straight line (tangent) l c is taken, a region above the tangent l c is a region not sandwiched by the inner core portion 31.
- a region of the trapezoidal space that is not sandwiched between the inner core portions 31 (the tangent line l c and the curve that forms the corner R portion 21 above each of the coil elements 2 a and 2 b
- the sensor 7 is arranged in a region surrounded by.
- the sensor 7 since the thickness of the sensor 7 is sufficiently larger than the gap g between the linear portions 22 of the coil 2, the sensor 7 is supported by the corner R portion 21 on the upper side of each of the coil elements 2a and 2b.
- the region between the inner core portions 31, that is, the region below the tangent line l c does not fall. That is, in this example, the sensor 7 is automatically disposed in a region surrounded by the tangent line l c and the corner R portion 21 in the trapezoidal space, and is supported by the corner R portion 21.
- the trapezoidal space is formed from one end surface of the coil 2 to the other end surface, and the sensor 7 can be disposed at this arbitrary location.
- an intermediate region including the center of the coil 2 in the axial direction is preferably used as a region where the sensor 7 is disposed.
- the intermediate region is, for example, a region from the center to one end side or the other end side of the coil 2 up to 30% of the axial length of the coil 2, that is, the axial length of the coil 2 including the center.
- An area of 60% is mentioned.
- the senor 7 is a temperature sensor, and includes a rod-like body (see FIG. 4) including a thermal element 7a (FIG. 5) such as a thermistor and a protective portion 7b (FIG. 5) that protects the thermal element 7a.
- the protective part 7b include tubes made of resin.
- the sensor 7 is connected to a wiring 71 (FIG. 4B) for transmitting sensed information to an external device such as a control device.
- the sensor include a sensor for measuring a physical quantity during operation of the reactor, such as a current sensor, a voltage sensor, and an acceleration sensor capable of measuring reactor vibration, in addition to the temperature sensor.
- the coil element 2a extends from the installation side surface (the lower surface 2d (FIG. 5)) of the coil 2 to the opposing surface (the upper surface 2u (FIG. 5)).
- the substantially middle part in the height direction between the coil elements 2a and 2b was the highest temperature point, and the temperature decreased as the distance from the highest temperature point decreased.
- the region was the lowest temperature location because it was cooled on a cooling base. The temperature differs between the upper trapezoidal space of the reactor 1 and the lower trapezoidal space, and the region is not necessarily the highest temperature region of the reactor 1.
- the current to the coil 2 can be controlled according to the measured temperature.
- the sensor holder 8 includes a strip-shaped placement portion 8a on which the sensor 7 is placed, and a holding portion 8b that is disposed with a slit formed between the placement portion 8a.
- the mounting portion 8a includes a plate-like partition portion 8c extending to the opposite side of the holding portion 8b.
- the placing portion 8a, the holding portion 8b, and the partition portion 8c are integrally formed.
- the slit is a storage space for the sensor 7, and when the sensor 7 is stored in the slit, the upper and lower sides of the sensor 7 are sandwiched between the holding portion 8b and the mounting portion 8a, and the left and right sides are opened.
- the sensor holder 8 holds the sensor 7 arranged in the trapezoidal space described above.
- the sensor 7 may be in a state where it is not in contact with the coil 2, but it is preferable that the sensor 7 is in contact with the coil 2 because the reliability of the measured value is further increased.
- the sensor 7 is held in contact with the coil 2.
- the holding portion 8b is a support end integrated with the placement portion 8a at one end side (left side in FIG. 4B), and a free end with the other end (right side in FIG. 4B) released. It is a cantilevered rod.
- the holding portion 8b preferably has a length that is equal to or greater than the total length of the sensor 7 in the axial direction. In this case, since it can cover with the holding
- the sensor 7 can be held more firmly at an appropriate position with respect to the coil 2 side, the physical quantity of the coil 2 as the measurement object can be directly measured, and measurement of physical quantities other than the coil 2 such as the atmosphere can be avoided.
- the temperature of the coil 2 can be measured with higher accuracy.
- the length of the placement portion 8a is substantially equal to the length of the sensor 7 in the axial direction, and the length of the holding portion 8b is closer to the wiring 71 side in the axial direction of the sensor 7 than the length of the placement portion 8a. Projecting slightly longer.
- the surface of the holding portion 8 b that contacts the sensor 7 is an arcuate curved surface similar to the outer shape of the sensor 7.
- the end of the holding portion 8b on the wiring 71 side has an arcuate curved surface similar to the outer shape of the wiring 71 so that the wiring 71 can be easily pulled out of the reactor 1.
- the partition portion 8c is a plate-like body disposed in the gap g provided between the linear portions 22 in each of the coil elements 2a and 2b, and is a rectangular plate-like body here.
- the thickness of the partition portion 8 c is equal to or less than the gap g and is smaller than the thickness of the sensor 7.
- the partition portion 8c has a main body portion 8d that extends in the axial direction of the coil 2, and an engaging portion 53e that is in contact with a frame plate portion 52 of the insulator 5 described later at both ends of the main body portion 8d and formed in the frame plate portion 52. And an engaging portion 8e to be engaged.
- the main body portion 8d is tapered such that both side surfaces on the distal end side in the direction in which the sensor holder 8 is inserted into the gap g are reduced in width toward the distal end.
- the engaging portion 8e has a hook 8f that protrudes toward the frame plate portion 52 at the end on the distal end side.
- the shape of the hook 8f is tapered so as to become thinner toward the tip.
- the hook 8f of the engaging portion 8e is engaged and positioned with the engaging portion 53e of the frame plate portion 52, and the sensor holder 8 can be prevented from falling off.
- a gap 8g is provided between the hook 8f and the engaging portion 53e. Even if the sensor holder 8 is once inserted by the gap 8g, the sensor holder 8 can be pulled out until the hook 8f is stopped against the engaging portion 53e, and the sensor 7 can be easily attached to the mounting portion 8a at any time. Can be put in and out.
- the partition portion 8c may be integrally formed with the holding portion 8b, or may be an independent separate member that is joined by a fixing member or the like to be an integrated object.
- the sensor 7 In the state where the sensor holder 8 is inserted into the gap g, the sensor 7 is in contact with the corner R portion 21 of each of the coil elements 2a and 2b at the portion exposed from the sensor holder 8, as shown in FIG. In particular, when the sensor 7 is pressed by the holding portion 8b, the sensor 7 holds the state in which the sensor 7 is reliably in contact with the coil 2.
- an insulating material such as polyphenylene sulfide (PPS) resin, polytetrafluoroethylene (PTFE) resin, polybutylene terephthalate (PBT) resin, liquid crystal polymer (LCP) can be used.
- PPS polyphenylene sulfide
- PTFE polytetrafluoroethylene
- PBT polybutylene terephthalate
- LCP liquid crystal polymer
- the magnetic core 3 includes a pair of inner core portions 31 covered with the coil elements 2 a and 2 b and a pair of outer core portions 32 that are not disposed on the coil 2 and are exposed from the coil 2.
- each inner core portion 31 is a columnar body having an outer shape obtained by rounding the corners of a rectangular parallelepiped along the inner peripheral shape of each coil element 2a, 2b as described above, and each outer core portion 32 is Each is a columnar body having a pair of trapezoidal surfaces.
- the magnetic core 3 has an outer core portion 32 disposed so as to sandwich the inner core portion 31 that is spaced apart, and the end surface 31e of each inner core portion 31 and the inner end surface 32e of the outer core portion 32 are brought into contact with each other. Formed.
- the inner core portion 31 and the outer core portion 32 form a closed magnetic circuit when the coil 2 is excited.
- the inner core portion 31 is a laminate in which a plurality of core pieces 31m made of a soft magnetic material and gap members 31g made of a material having a relative permeability smaller than that of the core pieces 31m are alternately laminated. It is a thing. When the core piece 31m and the gap material 31g are integrated with an adhesive, it is easy to handle and it is expected that noise can be reduced by firmly fixing the core piece 31m and the gap material 31g. In addition, when the core piece 31m and the gap material 31g are integrated with an adhesive tape or the like, it is easy to handle.
- the outer core portion 32 is a core piece made of a soft magnetic material.
- the core piece constituting the inner core portion 31 and the outer core portion 32 has a molded body using an insulating group and a soft magnetic powder typified by an iron group metal such as iron or an alloy thereof, an oxide containing iron, or the like.
- a laminated plate body in which a plurality of magnetic thin plates (for example, an electromagnetic steel plate typified by a silicon steel plate) is laminated may be mentioned.
- the molded body include a compacted body, a sintered body, and a composite material obtained by injection molding or cast molding a mixture including soft magnetic powder and resin.
- each core piece is a powder compact of soft magnetic metal powder containing iron such as iron or steel.
- the specific material of the gap material 31g is a mixture containing a nonmagnetic material such as alumina or unsaturated polyester, a nonmagnetic material such as polyphenylene sulfide (PPS) resin, and magnetic powder (for example, soft magnetic powder such as iron powder). Etc.
- a known material can be used as the gap material 31g.
- each core piece which comprises the magnetic core 3 shall be the thing of the same specification (compact compact
- the installation side surface of the inner core portion 31 and the installation side surface of the outer core portion 32 are not flush with each other, and the installation side surface of the outer core portion 32 is not flush. It protrudes from the inner core portion 31 and is flush with the surface on the installation side of the coil 2 (lower surface 2d in FIG. 5). Therefore, the surface on the installation side of the combination 10 of the coil 2 and the magnetic core 3 is composed of the lower surface 2d of both coil elements 2a and 2b and the surface on the installation side of the outer core portion 32, and the coil 2 and the magnetic core Since both can contact the bonding layer 42 (FIG. 2) mentioned later, the reactor 1 is excellent in heat dissipation.
- the surface on the installation side of the combined body 10 is composed of both the coil 2 and the magnetic core 3, the contact area with the fixed object is sufficiently large, and the reactor 1 is excellent in stability when installed. Furthermore, by configuring the core piece with a compacted body, the portion of the outer core portion 32 that protrudes from the inner core portion 31 can be used as a magnetic flux passage.
- the insulator 5 will be described with reference to FIGS.
- the insulator 5 includes a cylindrical portion 51 that houses the inner core portion 31, and a frame plate portion 52 that is interposed between the end surfaces of the coil elements 2 a and 2 b and the inner end surface 32 e of the outer core portion 32.
- the cylindrical portion 51 insulates the coil elements 2 a and 2 b from the inner core portion 31, and the frame plate portion 52 insulates the end surfaces of the coil elements 2 a and 2 b from the inner end surface 32 e of the outer core portion 32.
- the insulator 5 is composed of a member independent of the sensor holder 8 described above, and includes an engaging portion that engages with each other.
- the cylindrical part 51 is composed of cylindrical divided pieces 50a and 50b along the outer peripheral shape of the inner core part 31, and the pair of divided pieces 50a and 50b are combined to be integrated.
- the shape of the divided pieces 50a and 50b can be selected as appropriate.
- a part of the inner core portion 31 is exposed. Therefore, in the case of providing a sealing resin to be described later, it is easy to deaerate at the time of filling the sealing resin, it is excellent in manufacturability, and the contact area between the inner core portion 31 and the sealing resin can be increased. It is expected that it can be suppressed.
- the frame plate portion 52 is a B-shaped flat plate portion having a pair of openings (through holes) through which the two inner core portions 31 can be inserted.
- the frame plate portion 52 is disposed between the partition pieces 53a and 53b disposed so as to be interposed between the coil elements 2a and 2b and the coil connecting portion 2r and the outer core portion 32 when assembled to the coil 2.
- a flat pedestal 52p a flat pedestal 52p.
- the partition pieces 53a and 53b are provided so as to project from one surface of the frame plate portion 52 toward the coil side, and both side surfaces in the direction toward the coil side are tapered so as to narrow toward the inside. By being tapered, the sensor holder 8 can be easily inserted into the gap g. Engagement portions 53e that engage with the hooks 8f of the sensor holder 8 are formed on the coil-side end surfaces of the partition pieces 53a and 53b.
- the pedestal 52p protrudes from the other surface of the frame plate portion 52 toward the outer core portion 32 side.
- insulating materials such as polyphenylene sulfide (PPS) resin, polytetrafluoroethylene (PTFE) resin, polybutylene terephthalate (PBT) resin, and liquid crystal polymer (LCP) can be used.
- PPS polyphenylene sulfide
- PTFE polytetrafluoroethylene
- PBT polybutylene terephthalate
- LCP liquid crystal polymer
- the case 4 will be described with reference to FIG.
- the case 4 in which the combined body 10 of the coil 2 and the magnetic core 3 is housed includes a flat bottom plate portion 40 and a frame-like side wall portion 41 standing on the bottom plate portion 40.
- the bottom plate portion 40 and the side wall portion 41 are not integrally formed, and are independent members, and are integrated by a fixing material.
- the bottom plate portion 40 includes a bonding layer 42.
- the bottom plate portion 40 is typically a plate material that is fixed in contact with the installation target when the reactor 1 is installed on the installation target. Since the bottom plate portion 40 is used for the heat dissipation path of the coil 2, it is generally made of a metal that is a material having a high thermal conductivity. Specific examples of the metal include aluminum and its alloys, magnesium and its alloys, copper and its alloys, silver and its alloys, iron and austenitic stainless steel. Aluminum, magnesium, and their alloys can be made into lightweight cases. The thickness of the bottom plate portion 40 is, for example, about 2 mm to 5 mm in consideration of strength, shielding properties, heat dissipation properties, noise characteristics, and the like.
- the bottom plate portion 40 is made of an aluminum alloy, and the thermal conductivity of the bottom plate portion 40 is sufficiently higher than the thermal conductivity of the side wall portion 41 described later.
- the bottom plate portion 40 has a bonding layer 42 formed on one surface arranged on the inner side.
- the outer shape of the bottom plate portion 40 can be selected as appropriate.
- the bottom plate portion 40 has a rectangular shape as shown in FIG. 2 and has mounting portions 400 protruding from the four corners.
- the side wall portion 41 also has an attachment portion 411.
- Bolt holes 400h and 411h are provided in the attachment portions 400 and 411, respectively.
- Bolts (not shown) for fixing the case 4 to the installation target are inserted through the bolt holes 400h and 411h.
- the shape, the number, and the like of the attachment portions 400 and 411 can be selected as appropriate. If the bolt hole 411h of the side wall part 41 is comprised with a metal pipe, even if the side wall part 41 is comprised with resin so that it may mention later, it is excellent in intensity
- the bottom plate portion 40 includes a bonding layer 42 at a position where at least a surface (the lower surface 2d (FIG. 5)) on the installation side of the coil 2 contacts.
- the bonding layer 42 can be easily formed by a single layer structure made of an insulating material, and can insulate the coil 2 and the bottom plate portion 40 even if the bottom plate portion 40 is made of metal. Insulating properties can be further improved by using a multilayer structure made of an insulating material. When a multilayer structure of the same material is used, the thickness per layer can be reduced. Even if a pinhole exists by making it thin, insulation can be ensured by closing the pinhole with another adjacent layer. On the other hand, when the multilayer structure is made of different materials, a plurality of characteristics such as insulation between the coil 2 and the bottom plate portion 40, adhesion between the two, and heat dissipation from the coil 2 to the bottom plate portion 40 can be provided. In this case, at least one constituent material is an insulating material.
- the shape of the bonding layer 42 is not particularly limited as long as at least the surface (lower surface 2d) on the installation side of the coil 2 has a sufficient contact area.
- the bonding layer 42 has a shape along the shape formed by the surface on the installation side of the assembly 10, that is, the surfaces on the installation side of both the coil 2 and the outer core portion 32. Therefore, both the coil 2 and the outer core portion 32 can sufficiently contact the bonding layer 42.
- the bonding layer 42 is a multilayer having an adhesive layer made of an insulating material on the surface side where the surface on the side where the coil 2 is installed contacts, and a heat dissipation layer made of a material having excellent heat conductivity on the side contacting the bottom plate portion 40.
- a structure is preferred.
- the bonding layer 42 includes an adhesive layer and a heat dissipation layer.
- the adhesive layer a material having excellent adhesive strength can be suitably used.
- the adhesive layer can be composed of an insulating adhesive, specifically, an epoxy adhesive, an acrylic adhesive, or the like.
- the adhesive layer may be formed on the heat dissipation layer or screen printing may be used.
- a sheet-like adhesive may be used for the adhesive layer.
- the adhesive layer has a single-layer structure of an insulating adhesive.
- a material excellent in heat dissipation preferably a material having a thermal conductivity of more than 2 W / m ⁇ K can be suitably used.
- the heat dissipation layer is preferably as high as possible in terms of thermal conductivity, and is made of a material of 3 W / m ⁇ K or more, particularly 10 W / m ⁇ K or more, more preferably 20 W / m ⁇ K or more, particularly 30 W / m ⁇ K or more. preferable.
- the constituent material of the heat dissipation layer include a metal material.
- a metal material is generally a conductive material having a high thermal conductivity, and it is desired to improve the insulating properties of the adhesive layer.
- the heat dissipation layer made of a metal material tends to be heavy.
- a non-metallic inorganic material such as ceramics such as a material selected from oxides, carbides, and nitrides of metal elements, B, and Si is used as a constituent material of the heat dissipation layer, heat dissipation is excellent. It is also preferable because of its excellent electrical insulation.
- More specific ceramics are silicon nitride (Si 3 N 4 ): about 20 W / m ⁇ K to 150 W / m ⁇ K, alumina (Al 2 O 3 ): about 20 W / m ⁇ K to about 30 W / m ⁇ K, Aluminum nitride (AlN): about 200 W / m ⁇ K to 250 W / m ⁇ K, boron nitride (BN): about 50 W / m ⁇ K to 65 W / m ⁇ K, silicon carbide (SiC): 50 W / m ⁇ K About 130 W / m ⁇ K.
- a vapor deposition method such as PVD method or CVD method is used, or a sintered plate of the ceramic is prepared and bonded to the bottom plate portion 40 with an appropriate adhesive.
- a vapor deposition method such as PVD method or CVD method is used, or a sintered plate of the ceramic is prepared and bonded to the bottom plate portion 40 with an appropriate adhesive.
- the constituent material of the heat dissipation layer may be an insulating resin (for example, an epoxy resin or an acrylic resin) containing a filler made of the above ceramics.
- This material provides a heat dissipation layer that is excellent in both heat dissipation and electrical insulation.
- both the heat dissipation layer and the adhesive layer are made of an insulating material, that is, the whole bonding layer is made of an insulating material, the bonding layer is further excellent in insulation.
- the insulating resin is an adhesive, the adhesiveness between the heat dissipation layer and the adhesive layer is excellent, and the bonding layer including the heat dissipation layer can firmly bond the coil 2 and the bottom plate portion 40.
- the adhesives constituting the adhesive layer and the heat dissipation layer may be different, but if they are the same type, the adhesive layer is excellent and the bonding layer can be easily formed. You may form the whole joining layer with the said insulating adhesive containing a filler. In this case, the bonding layer has a single layer structure made of a single kind of material.
- the heat dissipation layer can be easily formed by, for example, applying to the bottom plate portion 40 or screen printing to form the heat dissipation layer with the filler-containing resin.
- the heat dissipation layer may be a single layer structure or a multilayer structure. In the case of a multi-layer structure, at least one layer of materials may be different.
- the heat dissipation layer can have a multilayer structure made of materials having different thermal conductivities.
- the heat radiation layer can ensure heat radiation, the heat radiation layer can provide a higher degree of freedom in selecting available sealing resin.
- a resin having poor thermal conductivity such as a resin not containing a filler can be used as the sealing resin.
- the side wall portion 41 is a frame-like body (here, rectangular shape), and when the case 4 is assembled by closing one opening portion with the bottom plate portion 40, the side wall portion 41 is disposed so as to surround the periphery of the combination body 10. The opening is opened.
- region used as the installation side when the reactor 1 is installed in fixation object is a rectangular shape along the external shape of the said baseplate part 40, and the area
- the side wall 41 is made of an insulating resin. Therefore, even when the coil 2 and the side wall portion 41 are arranged close to each other as shown in FIG. 1 (for example, the distance between the outer peripheral surface of the coil 2 and the inner surface of the side wall portion 41 is about 0 mm to 1.0 mm), Excellent in properties. Moreover, the reactor 1 can be reduced in size by reducing the said space
- the insulating resin include PBT resin, urethane resin, PPS resin, acrylonitrile-butadiene-styrene (ABS) resin, and the like.
- the side wall 41 When at least a part of the side wall 41 is made of metal (particularly nonmagnetic metal such as aluminum or magnesium), an improvement in heat dissipation and a shielding function can be expected.
- all the side wall portions 41 are made of insulating resin as in this example, (1) excellent insulation between the coil 2 and the case 4 is achieved. (2) Even a complicated shape is easily manufactured by injection molding or the like. (3) It has the advantage that weight reduction can be achieved.
- the bottom plate portion 40 and the side wall portion 41 are integrated by the connecting bolt as described above, but an adhesive may be used together with the connecting bolt. Or you may connect the baseplate part 40 and the side wall part 41 only using an adhesive agent. In this case, for example, both the adhesive layer used for the bonding layer 42 and the adhesive layer that bonds the bottom plate part 40 and the side wall part 41 can be formed. In this embodiment, the curing step of the bonding layer 42 and the curing step of the adhesive layer that bonds the bottom plate portion 40 and the side wall portion 41 can be performed simultaneously, and the curing step can be reduced. Therefore, this form can improve productivity.
- the case 4 may be filled with the sealing resin 6 (FIG. 1).
- the sealing resin 6 fixes the position of the assembly 10 stored in the case 4, protects the assembly 10 etc. mechanically and protects from the external environment (improves corrosion resistance), improves heat dissipation depending on the material, and insulates The improvement of property etc. can be aimed at.
- the end of the winding 2w is exposed from the sealing resin, the end of the winding 2w and the terminal fitting (not shown) can be easily joined. After joining the end portion of the winding 2w and the terminal metal fitting, it is also possible to adopt a form in which this joining portion is embedded in the sealing resin.
- sealing resin 6 examples include insulating resins such as an epoxy resin, a urethane resin, and a silicone resin.
- insulating resins such as an epoxy resin, a urethane resin, and a silicone resin.
- a sealing resin containing a filler excellent in insulation and thermal conductivity for example, a filler made of at least one ceramic selected from silicon nitride, alumina, aluminum nitride, boron nitride, mullite, and silicon carbide; Then, the heat dissipation can be further enhanced.
- the sealing resin 6 if a packing (not shown) is provided between the bottom plate portion 40 and the side wall portion 41, uncured resin leaks from the gap between the bottom plate portion 40 and the side wall portion 41. Can be prevented.
- the adhesive can be sealed between the two to prevent leakage of uncured resin, so that packing can be omitted.
- Reactor 1 having the above-described configuration can be typically manufactured by a process of preparing an assembly, preparing a bottom plate, fixing an assembly, assembling a case, arranging a sensor, and filling a sealing resin. .
- the manufacturing procedure of the combination 10 of the coil 2 and the magnetic core 3 will be described. Specifically, as shown in FIG. 3, the inner core portion 31 in which the core pieces 31m and the gap material 31g are stacked and one divided piece 50a of the insulator 5 are inserted into the coil elements 2a and 2b.
- the outer peripheral surface of the laminated body of the core piece 31m and the gap material 31g is connected with an adhesive tape to produce the inner core portion 31 in a columnar shape.
- the other divided piece 50b of the insulator 5 is inserted into the other end face of the coil elements 2a and 2b.
- the core piece 31m and the gap material 31g may be separated from each other without being integrated with an adhesive tape or an adhesive. In this case, some of the core pieces 31m and the gap material 31g are supported by one divided piece 50a, and the other core pieces 31m and the gap material 31g are supported by the other divided piece 50b. It is good to insert in.
- the frame plate portion 52 and the outer side of the coil 2 are sandwiched between the end surface 31e of both the coil elements 2a and 2b and the end surface 31e of the inner core portion 31 between the frame plate portion 52 of the insulator 5 and the inner end surface 32e of the outer core portion 32.
- the core part 32 is arrange
- the end surface 31 e of the inner core portion 31 is exposed from the opening of the frame plate portion 52 and contacts the inner end surface 32 e of the outer core portion 32.
- the partition pieces 53a and 53b of the insulator 5 are interposed between the two coil elements 2a and 2b, and a gap g corresponding to the thickness of the partition pieces 53a and 53b can be provided between the two elements 2a and 2b.
- the bonding layer 42 allows the coil 2 to be in close contact with the bottom plate portion 40, and the positions of the coil 2 and the outer core portion 32 are fixed. As a result, the position of the inner core portion 31 sandwiched between the pair of outer core portions 32 is also fixed. The Therefore, even if the inner core portion 31 and the outer core portion 32 are joined with an adhesive, or the core piece 31m and the gap material 31g are joined together with an adhesive or the like, the inner core portion can be formed by the joining layer 42.
- the magnetic core 3 including the outer core portion 31 and the outer core portion 32 can be integrated into an annular shape. Moreover, the assembly 10 is firmly fixed to the bonding layer 42 because the bonding layer 42 is formed of an adhesive.
- the side wall 41 is placed from above the union 10 so as to surround the outer peripheral surface of the union 10 and is disposed on the bottom plate 40.
- the bottom plate portion 40 and the side wall portion 41 are integrated with a separately prepared bolt (not shown).
- the box-shaped case 4 is assembled as shown in FIG. 1, and the combined body 10 can be stored in the case 4.
- the sensor 7 is assembled to the sensor holder 8.
- the sensor 7 is placed on the placement portion 8 a of the sensor holder 8, and the sensor 7 is held between the placement portion 8 a and the holding portion 8 b, whereby the sensor 7 is held by the sensor holder 8.
- the sensor 7 is held at an intermediate position in the width direction of the sensor holder 8.
- the sensor holder 8 holding the sensor 7 is disposed in a trapezoidal space formed above the coil elements 2a and 2b.
- the partition portion 8c of the sensor holder 8 is inserted into a gap g provided between the coil elements 2a and 2b, and the hook 8f of the sensor holder 8 and the engaging portion 53e of the frame plate portion 52 are engaged. Integrate both.
- the sensor 7 exposed from the mounting portion 8a and the holding portion 8b of the sensor holder 8 is appropriately applied to the coil 2 at the corner R portion 21 above both the coil elements 2a and 2b. It will be in the state where it touched at the correct position.
- a part of the wiring 71 connected to the sensor 7 is also covered with the holding portion 8b and pulled out from the end of the holding portion 8b to the outside of the reactor 1.
- the placement portion 8a and the holding portion 8b of the sensor holder 8 are disposed in the trapezoidal space, but the placement portion 8a and the holding portion 8b of the sensor holder 8 are trapezoidal.
- the sensor 7 may be assembled to the sensor holder 8 after being arranged in the space.
- the partition portion 8c of the sensor holder 8 is inserted into the gap g and integrated with the frame plate portion 52.
- the hook 8f is engaged with the engagement portion.
- the sensor holder 8 can be pulled out until it is stopped by 53e, and the sensor 7 can be assembled in this state.
- the reactor 1 including the sealing resin 6 can be formed by filling the case 4 with the sealing resin 6 and curing it. In this form, the sensor 7 and the wiring 71 can also be fixed with the sealing resin 6.
- the reactor 1 described above is used in applications where the energization conditions are, for example, maximum current (DC): about 100 A to 1000 A, average voltage: about 100 V to 1000 V, and operating frequency: about 5 kHz to 100 kHz, typically an electric vehicle or a hybrid It can be suitably used for a component part of an in-vehicle power converter such as an automobile.
- DC maximum current
- the reactor 1 has a coil 2 in a specific shape, and the sensor 7 is arranged in a trapezoidal space formed by a specific region constituted by this shape: the corner R portion 21.
- the stress applied to the sensor 7 stress caused by the thermally expanded coil 2
- the reactor 1 is a so-called dead space, and a region where the stress is hardly received or where stress is not substantially applied (region above the tangent line l c in the trapezoidal region) is set as a region where the sensor 7 is disposed. Accordingly, the reactor 1 is small without causing an increase in size due to the arrangement of the sensor 7 or an increase in size for protection of the sensor 7.
- the reactor 1 of this embodiment can reliably hold the sensor 7 at an appropriate position with respect to the coil 2 using the sensor holder 8 formed of a member independent of the insulator 5, the sealing resin 6 is provided. Even in such a case, since the physical quantity such as the coil temperature can be appropriately measured, the reliability of the measured value is high. In particular, since the physical quantity can be measured at the position closest to the coil 2 by holding the sensor 7 in contact with the coil 2, the reliability of the measured value is further high. Further, the sensor 7 can be placed in the trapezoidal space after being assembled to the sensor holder 8, and the sensor 7 can be easily placed and has excellent productivity.
- the sensor holder 8 since the sensor holder 8 has a length that is equal to or greater than the total length of the sensor 7 in the axial direction, the sensor 7 can be brought into contact with only the measurement object, and therefore it is possible to prevent measurement of physical quantities other than the measurement object. Since the sensor holder 8 is engaged and positioned with the insulator 5 (frame plate portion 52), the sensor holder 8 can be prevented from falling off. Furthermore, even if the sensor holder 8 and the insulator 5 are engaged and integrated, there is a gap 8g between the hook 8f and the engaging portion 53e, so that the hook 8f is stopped against the engaging portion 53e. The sensor holder 8 can be pulled out, and the sensor 7 can be easily inserted into and removed from the sensor holder 8 at any time.
- Embodiment 2 In Embodiment 1 mentioned above, the form in which the baseplate part 40 and the side wall part 41 are independent members was demonstrated. In addition, it can be set as the form which provides the case which consists of a box body in which the baseplate part and the side wall part were shape
- the form including the case has been described.
- it can be set as the form which abbreviate
- This form is smaller because it does not have a case.
- the sensor 7 is securely fixed to the trapezoidal space of the coil 2 by the resin, and the sensor 7 is dropped or displaced.
- the combination 10 can be protected from the external environment and mechanically protected, and (3) heat radiation can be improved depending on the resin material.
- the resin examples include epoxy resin, unsaturated polyester, urethane resin, PPS resin, PBT resin, acrylonitrile-butadiene-styrene (ABS) resin, and the like. If this resin is also made to contain the filler mentioned above similarly to sealing resin, heat dissipation can be improved.
- the reactors of the first to third embodiments can be used, for example, as a component part of a converter mounted on a vehicle or the like, or a component part of a power conversion device including the converter.
- a vehicle 1200 such as a hybrid vehicle or an electric vehicle is used for traveling by being driven by a main battery 1210, a power converter 1100 connected to the main battery 1210, and power supplied from the main battery 1210 as shown in FIG. Motor (load) 1220.
- the motor 1220 is typically a three-phase AC motor, which drives the wheel 1250 when traveling and functions as a generator during regeneration.
- vehicle 1200 includes an engine in addition to motor 1220.
- an inlet is shown as a charge location of the vehicle 1200, it can be set as the form which provides a plug.
- the power conversion device 1100 includes a converter 1110 connected to the main battery 1210 and an inverter 1120 connected to the converter 1110 and performing mutual conversion between direct current and alternating current.
- the converter 1110 shown in this example boosts the DC voltage (input voltage) of the main battery 1210 of about 200V to 300V to about 400V to 700V when the vehicle 1200 is running, and supplies the inverter 1120 with power.
- converter 1110 steps down DC voltage (input voltage) output from motor 1220 via inverter 1120 to DC voltage suitable for main battery 1210 during regeneration, and causes main battery 1210 to be charged.
- the inverter 1120 converts the direct current boosted by the converter 1110 into a predetermined alternating current when the vehicle 1200 is running, and supplies the motor 1220 with electric power. During regeneration, the alternating current output from the motor 1220 is converted into direct current and output to the converter 1110. is doing.
- the converter 1110 includes a plurality of switching elements 1111, a drive circuit 1112 that controls the operation of the switching elements 1111, and a reactor L, and converts input voltage by ON / OFF repetition (switching operation). (In this case, step-up / down pressure) is performed.
- a power device such as a field effect transistor (FET) or an insulated gate bipolar transistor (IGBT) is used.
- the reactor L has the function of smoothing the change when the current is going to increase or decrease by the switching operation by utilizing the property of the coil that prevents the change of the current to flow through the circuit.
- the reactors of the first to third embodiments are provided.
- the power conversion device 1100 and the converter 1110 are also excellent in heat dissipation, insulation, and productivity by including the reactor 1 that is excellent in productivity.
- Vehicle 1200 is connected to converter 1110, power supply converter 1150 connected to main battery 1210, sub-battery 1230 serving as a power source for auxiliary machinery 1240, and main battery 1210.
- Auxiliary power supply converter 1160 for converting high voltage to low voltage is provided.
- the converter 1110 typically performs DC-DC conversion, while the power supply device converter 1150 and the auxiliary power supply converter 1160 perform AC-DC conversion. Some power supply device converters 1150 perform DC-DC conversion.
- the reactors of the power supply device converter 1150 and the auxiliary power supply converter 1160 have the same configuration as that of the reactors of the first to third embodiments, and a reactor whose size and shape are appropriately changed can be used.
- the reactors of the first to third embodiments can be used for a converter that performs conversion of input power, and that only performs step-up or only performs step-down.
- the present invention is not limited to the above-described embodiment, and can be appropriately changed without departing from the gist of the present invention.
- the sensor may be fixed by a sensor holder in a trapezoidal space sandwiched between corners R of each coil element on the lower side of the reactor.
- the reactor of the present invention includes various converters such as an in-vehicle converter (typically a DC-DC converter) and an air conditioner converter mounted on a vehicle such as a hybrid vehicle, a plug-in hybrid vehicle, an electric vehicle, and a fuel cell vehicle. It can be suitably used as a component part of a power converter.
- an in-vehicle converter typically a DC-DC converter
- an air conditioner converter mounted on a vehicle such as a hybrid vehicle, a plug-in hybrid vehicle, an electric vehicle, and a fuel cell vehicle. It can be suitably used as a component part of a power converter.
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Dc-Dc Converters (AREA)
- Regulation Of General Use Transformers (AREA)
- Measuring Instrument Details And Bridges, And Automatic Balancing Devices (AREA)
Abstract
Description
本発明は、各コイル素子の形状を特定の形状とすると共に、リアクトルの動作時の物理量(コイルの温度や電流など)を計測するセンサの配置箇所を特定の位置とし、センサを保持する部材をインシュレータと独立して具えることで、上述の目的を達成する。最初に本発明の実施形態の内容を列記して説明する。
(6) 実施形態に係るコンバータは、上述の(1)~(5)のいずれか1つに記載の実施形態のリアクトルを具える。
(7) 実施形態に係る電力変換装置は、上記実施形態のコンバータを具える。
以下、本発明についての実施形態を図面に基づいて説明する。図面において同一符号は同一部材を示す。なお、以下の説明では、リアクトルを設置したときの設置側を下側、その対向側を上側として説明する。
図1~図5を参照して、実施形態1のリアクトルを説明する。
リアクトル1は、互いに繋がる一対のコイル素子2a,2bを具えるコイル2と、各コイル素子2a,2b内にそれぞれ配置される一対の内側コア部31(図3)及びこれら内側コア部31を連結して閉磁路を形成する外側コア部32を有する磁性コア3と、コイル2と磁性コア3との間に介在されるインシュレータ5とを具える。さらに、リアクトル1の動作時の物理量を測定するセンサ7(図2)と、センサ7を保持するセンサホルダ8とを具える。また、この例のリアクトル1は、コイル2と磁性コア3との組合体10を収納するケース4を具える。ケース4は、一面が開口した箱体である(図2参照)。リアクトル1の主たる特徴とするところは、各コイル素子2a,2bの形状と、センサ7の配置位置と、センサ7を保持するセンサホルダ8がインシュレータ5とは別部材で構成されていることにある。以下、上記特徴部分をまず説明し、次に、その他の構成をより詳細に説明する。
コイル2は、図3,図5を主に参照して説明する。図5では、分かり易いように、コイル2と、センサ7及びセンサホルダ8を主に示し、インシュレータ5などを省略している。
ここでは、センサ7は温度センサであり、サーミスタといった感熱素子7a(図5)と、感熱素子7aを保護する保護部7b(図5)とを具えた棒状体(図4参照)が挙げられる。保護部7bは、樹脂などのチューブが挙げられる。センサ7には、感知した情報を制御装置といった外部装置に伝達するための配線71(図4(B))が接続される。センサとしては、温度センサ以外に、電流センサや電圧センサ、リアクトルの振動が測定可能な加速度センサなど、リアクトルの動作時の物理量を測定するためのセンサが挙げられる。
センサホルダ8は、図4に示すように、上記センサ7が載置される短冊状の載置部8aと、その載置部8aとの間にスリットを形成して配される保持部8bと、載置部8aにおける保持部8bとは反対側に延びる板状の仕切り部8cとを具える。ここでは、載置部8a、保持部8b及び仕切り部8cは一体成形されている。上記スリットは、センサ7の収納空間であり、このスリットにセンサ7を収納した状態では、センサ7の上下が保持部8bと載置部8aとで挟まれ、その左右が開放されている。本実施形態では、このセンサホルダ8によって、上述した台形状空間に配置されたセンサ7を保持することを特徴の一つとする。センサ7はコイル2に接触していない状態であってもよいが、センサ7をコイル2に接触した状態とすると測定値の信頼性がさらに高くなり好ましい。ここでは、センサ7をコイル2に接触した状態で保持している。
磁性コア3の説明は、図3を参照して行う。磁性コア3は、各コイル素子2a,2bに覆われる一対の内側コア部31と、コイル2が配置されず、コイル2から露出されている一対の外側コア部32とを有する。ここでは、各内側コア部31はそれぞれ、上述のように各コイル素子2a,2bの内周形状に沿って、直方体の角部を丸めた外形を有する柱状体であり、各外側コア部32はそれぞれ、一対の台形状面を有する柱状体である。磁性コア3は、離間して配置される内側コア部31を挟むように外側コア部32が配置され、各内側コア部31の端面31eと外側コア部32の内端面32eとを接触させて環状に形成される。これら内側コア部31及び外側コア部32により、コイル2を励磁したとき、閉磁路を形成する。
インシュレータ5の説明は、図3,図4を参照して行う。インシュレータ5は、内側コア部31を収納する筒状部51と、各コイル素子2a,2bの端面と外側コア部32の内端面32eとの間に介在される枠板部52とを具える。筒状部51は、コイル素子2a,2bと内側コア部31とを絶縁し、枠板部52は、コイル素子2a,2bの端面と外側コア部32の内端面32eとを絶縁する。このインシュレータ5は、上述したセンサホルダ8とは独立した部材で構成されており、互いに係合する係合部を具えることを特徴の一つとする。
ケース4の説明は、図2を参照して行う。コイル2と磁性コア3との組合体10が収納されるケース4は、平板状の底板部40と、底板部40に立設する枠状の側壁部41とを具える。リアクトル1のケース4は、底板部40と側壁部41とが一体に成形されておらず、それぞれ独立した部材であり、固定材により一体化される。また、底板部40には、接合層42を具える。
底板部40は、代表的には、リアクトル1が設置対象に設置されるときに設置対象に接して固定される板材である。底板部40は、コイル2の放熱経路に利用されることから、一般に熱伝導率が高い材料である金属によって構成される。具体的な金属は、アルミニウムやその合金、マグネシウムやその合金、銅やその合金、銀やその合金、鉄やオーステナイト系ステンレス鋼などが挙げられる。アルミニウムやマグネシウム、これらの合金は、軽量なケースにできる。底板部40の厚さは、強度、シールド性、放熱性、騒音特性などを考慮して、例えば、2mm~5mm程度が挙げられる。ここでは、底板部40をアルミニウム合金から構成しており、底板部40の熱伝導率は、後述する側壁部41の熱伝導率よりも十分に高い。この底板部40は、ケース4を組み立てたとき、内側に配置される一面に接合層42が形成されている。
底板部40は、少なくともコイル2の設置側の面(下面2d(図5))が接触する箇所に接合層42を具える。
側壁部41は、枠状体(ここでは矩形状)であり、一方の開口部を底板部40により塞いでケース4を組み立てたとき、上記組合体10の周囲を囲むように配置され、他方の開口部が開放される。ここでは、側壁部41は、リアクトル1を固定対象に設置したときに設置側となる領域が上記底板部40の外形に沿った矩形状であり、開放された開口側の領域がコイル2と磁性コア3との組合体10の外周面に沿った曲面形状である。
ここでは、底板部40及び側壁部41は、上述のように連結ボルトによって一体化しているが、連結ボルトと共に接着剤を併用してもよい。又は、接着剤のみを利用して底板部40及び側壁部41を連結してもよい。この場合、例えば、接合層42に用いる接着層と、底板部40及び側壁部41を接合する接着剤層との双方を形成する形態とすることができる。この形態は、接合層42の硬化工程と、底板部40及び側壁部41を接合する接着剤層の硬化工程とを同時に行えて、硬化工程を低減できる。従って、この形態は、生産性の向上を図ることができる。
ケース4内に封止樹脂6(図1)を充填した形態とすることができる。封止樹脂6は、ケース4に収納した組合体10などの位置の固定、組合体10などの機械的な保護や外部環境からの保護(耐食性の向上)、材質によっては放熱性の向上、絶縁性の向上などを図ることができる。この形態では、例えば、巻線2wの端部を封止樹脂から露出させると、巻線2wの端部と端子金具(図示せず)とを接合し易い。巻線2wの端部と端子金具とを接合した後、この接合箇所を封止樹脂に埋設させた形態とすることもできる。
上記構成を具えるリアクトル1は、代表的には、組合体の準備⇒底板部の準備⇒組合体の固定⇒ケースの組立⇒センサの配置⇒封止樹脂の充填という工程により製造することができる。
まず、コイル2と磁性コア3との組合体10の作製手順を説明する。具体的には、図3に示すようにコア片31mやギャップ材31gを積層した内側コア部31とインシュレータ5の一方の分割片50aとを各コイル素子2a,2bに挿入する。ここでは、コア片31mとギャップ材31gとの積層体の外周面を接着テープにより連結して内側コア部31を柱状に作製している。次に、コイル素子2a,2bの他方の端面に、インシュレータ5の他方の分割片50bを挿入する。なお、コア片31mとギャップ材31gとを接着テープや接着剤などで一体化せず、ばらばらの状態としてもよい。この場合、一部のコア片31m及びギャップ材31gを一方の分割片50aで支持し、他部のコア片31m及びギャップ材31gを他方の分割片50bで支持して、各コイル素子2a,2bに挿入するとよい。
図2に示すようにアルミニウム板を所定の形状に打ち抜いて底板部40を形成し、一面に所定の形状の接合層42をスクリーン印刷により形成して、接合層42を具える底板部40を用意する。そして、この接合層42の上に、組み立てた組合体10を載置し、その後、接合層42を適宜硬化して組合体10を底板部40に固定する。
上記組合体10の外周面を囲むように、側壁部41を組合体10の上方から被せ、底板部40の上に配置する。別途用意したボルト(図示せず)により、底板部40と側壁部41とを一体化する。この工程により、図1に示すように箱状のケース4が組み立てられると共に、ケース4内に組合体10が収納された状態とすることができる。
まず、センサホルダ8にセンサ7を組み付ける。センサホルダ8の載置部8aにセンサ7を載置し、載置部8aと保持部8bとでセンサ7を挟むことで、センサ7をセンサホルダ8で保持する。このとき、センサ7はセンサホルダ8の幅方向の中間位置に保持される。次に、センサ7を保持したセンサホルダ8を両コイル素子2a,2bの上側に形成された台形状空間に配置する。ここでは、センサホルダ8の仕切り部8cを、各コイル素子2a,2b間に設けられた隙間gに差し込み、センサホルダ8のフック8fと枠板部52の係合部53eとを係合させて、両者を一体化する。このとき、図5に示すように、センサホルダ8の載置部8a及び保持部8bから露出されたセンサ7が、両コイル素子2a,2bの上側の角R部21でコイル2に対して適切な位置で接触した状態となる。センサ7に接続される配線71の一部も、保持部8bに覆われており、保持部8bの端部からリアクトル1の外部に引き出す。
ケース4内に封止樹脂6を充填して硬化することで、封止樹脂6を具えるリアクトル1を形成することができる。この形態では、センサ7や配線71も封止樹脂6で固定できる。
上述のリアクトル1は、通電条件が、例えば、最大電流(直流):100A~1000A程度、平均電圧:100V~1000V程度、使用周波数:5kHz~100kHz程度である用途、代表的には電気自動車やハイブリッド自動車などの車載用電力変換装置の構成部品に好適に利用することができる。
本実施形態のリアクトル1は、図5に示すように、コイル2を特定の形状とし、この形状により構成される特定の領域:角R部21がつくる台形状空間にセンサ7を配置していることで、センサ7に加えられる応力(熱膨張したコイル2による応力)を低減できる、或いは実質的に応力が加わることが無い。従って、上記応力によりセンサ7が破損せず、リアクトル1は、コイル2の温度を適切に測定できる。かつ、リアクトル1は、いわゆるデッドスペースであって、上記応力を受け難い、或いは実質的に応力が負荷されない領域(台形状領域において接線lcよりも上方領域)をセンサ7の配置領域とする。従って、リアクトル1は、センサ7の配置による大型化や、センサ7の保護のための大型化を招くことがなく、小型である。
上述した実施形態1では、底板部40と側壁部41とが独立した部材である形態を説明した。その他、底板部と側壁部とが一体に成形された箱体からなるケースを具える形態とすることができる。この形態では、ケース全体が上述のアルミニウムなどの金属で構成された場合には、ケース全体を放熱経路に利用でき、放熱性を高められる。
上述した実施形態では、ケースを具える形態を説明した。その他、ケースを省略した形態とすることができる。この形態は、ケースを具えていないことでより小型である。更に、この組合体10の外周を射出成形などにより樹脂で被覆した形態とすると、(1)当該樹脂によりセンサ7をコイル2の台形状空間に確実に固定して、センサ7の脱落や位置ずれを防止できる、(2)組合体10に対して、外部環境からの保護や機械的保護を図ることができる、(3)樹脂の材質によっては放熱性を高められる、といった効果を有する。上記樹脂には、エポキシ樹脂、不飽和ポリエステル、ウレタン樹脂、PPS樹脂、PBT樹脂、アクリロニトリル-ブタジエン-スチレン(ABS)樹脂などが挙げられる。この樹脂にも、封止樹脂と同様に、上述したフィラーを含有させると、放熱性を高められる。
実施形態1~3のリアクトルは、例えば、車両などに載置されるコンバータの構成部品や、このコンバータを具える電力変換装置の構成部品に利用することができる。
2 コイル 2a,2b コイル素子 2r コイル連結部 2w 巻線
2e 巻線の端部 2d 下面 2u 上面
21 角R部 22,23 直線状部
3 磁性コア 31 内側コア部 31e 端面 31m コア片
31g ギャップ材
32 外側コア部 32e 内端面
4 ケース 40 底板部 41 側壁部 42 接合層
400,411 取付部 400h,411h ボルト孔
5 インシュレータ 50a,50b 分割片 51 筒状部
52 枠板部 52p 台座
53a,53b 仕切り片 53e 係合部
6 封止樹脂
7 センサ 7a 感熱素子 7b 保護部 71 配線
8 センサホルダ 8a 載置部 8b 保持部
8c 仕切り部 8d 本体部 8e 係合部
8f フック 8g 隙間
1100 電力変換装置 1110 コンバータ
1111 スイッチング素子
1112 駆動回路 L リアクトル 1120 インバータ
1150 給電装置用コンバータ 1160 補機電源用コンバータ
1200 車両 1210 メインバッテリ 1220 モータ
1230 サブバッテリ 1240 補機類 1250 車輪
Claims (7)
- 互いに繋がる一対のコイル素子を具えるコイルと、
前記各コイル素子内にそれぞれ配置される一対の内側コア部及びこれら内側コア部を連結して閉磁路を形成する外側コア部を有する磁性コアと、
前記コイルと前記磁性コアとの間に介在されるインシュレータとを具えるリアクトルであって、
前記リアクトルの動作時の物理量を測定するセンサと、
前記インシュレータと独立した部材で構成され、前記センサを保持するセンサホルダとを具え、
前記各コイル素子は、巻線を螺旋状に巻回して構成された筒状体で、かつ端面形状が角部を丸めた角R部を有する形状であり、各コイル素子の軸が平行するように並列に配置され、
前記センサは、前記各コイル素子において対向配置された前記角R部に挟まれる台形状空間に配置されているリアクトル。 - 前記センサホルダは、前記センサを覆う保持部を具え、
前記保持部は、前記センサの軸方向の全長以上の長さを有する請求項1に記載のリアクトル。 - 前記保持部は、前記センサに接続される配線の一部を覆う請求項2に記載のリアクトル。
- 前記センサホルダは、前記各コイル素子間に配置される仕切り部を具える請求項1~請求項3のいずれか1項に記載のリアクトル。
- 前記センサホルダは、前記インシュレータと係合する係合部を具える請求項1~請求項4のいずれか1項に記載のリアクトル。
- 請求項1~請求項5のいずれか1項に記載のリアクトルを具えるコンバータ。
- 請求項6に記載のコンバータを具える電力変換装置。
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201380057362.8A CN104769689B (zh) | 2012-11-01 | 2013-10-23 | 电抗器、转换器、及电力转换装置 |
US14/436,223 US9336942B2 (en) | 2012-11-01 | 2013-10-23 | Reactor, converter, and power conversion device |
DE112013005274.1T DE112013005274B4 (de) | 2012-11-01 | 2013-10-23 | Drossel, Wandler und Stromrichtereinrichtung |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2012242225A JP5892337B2 (ja) | 2012-11-01 | 2012-11-01 | リアクトル、コンバータ、及び電力変換装置 |
JP2012-242225 | 2012-11-01 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2014069312A1 true WO2014069312A1 (ja) | 2014-05-08 |
Family
ID=50627221
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2013/078745 WO2014069312A1 (ja) | 2012-11-01 | 2013-10-23 | リアクトル、コンバータ、及び電力変換装置 |
Country Status (5)
Country | Link |
---|---|
US (1) | US9336942B2 (ja) |
JP (1) | JP5892337B2 (ja) |
CN (1) | CN104769689B (ja) |
DE (1) | DE112013005274B4 (ja) |
WO (1) | WO2014069312A1 (ja) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2017050457A (ja) * | 2015-09-03 | 2017-03-09 | トヨタ自動車株式会社 | リアクトル |
US20170154724A1 (en) * | 2015-11-26 | 2017-06-01 | Cyntec Co., Ltd. | Planar reactor |
JP2022145639A (ja) * | 2021-03-18 | 2022-10-04 | 乾坤科技股▲ふん▼有限公司 | 磁気コンポーネント |
Families Citing this family (26)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP6288510B2 (ja) * | 2014-06-06 | 2018-03-07 | 株式会社オートネットワーク技術研究所 | リアクトル |
JP6376461B2 (ja) * | 2014-10-15 | 2018-08-22 | 株式会社オートネットワーク技術研究所 | リアクトル |
JP6379981B2 (ja) * | 2014-10-15 | 2018-08-29 | 株式会社オートネットワーク技術研究所 | リアクトル |
FR3028087B1 (fr) * | 2014-11-05 | 2016-12-23 | Labinal Power Systems | Elements bobines comportant un dispositif de mesure de temperature |
JP6365941B2 (ja) * | 2014-11-07 | 2018-08-01 | 株式会社オートネットワーク技術研究所 | リアクトル |
JP6478108B2 (ja) | 2015-04-03 | 2019-03-06 | 株式会社オートネットワーク技術研究所 | リアクトル |
JP6596676B2 (ja) | 2015-05-19 | 2019-10-30 | パナソニックIpマネジメント株式会社 | リアクトル |
TWI587346B (zh) * | 2015-07-22 | 2017-06-11 | 松川精密股份有限公司 | 具陶瓷複合材料之繼電器開關元件 |
JP6455450B2 (ja) * | 2016-01-12 | 2019-01-23 | トヨタ自動車株式会社 | リアクトル |
JP6468466B2 (ja) * | 2016-01-22 | 2019-02-13 | 株式会社オートネットワーク技術研究所 | リアクトル |
US20190066897A1 (en) * | 2016-03-11 | 2019-02-28 | Panasonic Intellectual Property Management Co., Ltd. | Coil part |
JP6561953B2 (ja) * | 2016-09-21 | 2019-08-21 | 株式会社オートネットワーク技術研究所 | 磁性コア、及びリアクトル |
JP6844494B2 (ja) * | 2017-02-08 | 2021-03-17 | 株式会社オートネットワーク技術研究所 | リアクトル |
JP6635316B2 (ja) * | 2017-02-15 | 2020-01-22 | 株式会社オートネットワーク技術研究所 | リアクトル |
DE102017107328A1 (de) * | 2017-04-05 | 2018-10-11 | Alanod Gmbh & Co. Kg | Elektroisoliertes elektrisches Leiterband, insbesondere für Elektromotoren und Transformatoren |
JP6919984B2 (ja) * | 2017-05-17 | 2021-08-18 | 株式会社タムラ製作所 | コイル装置 |
JP6779467B2 (ja) * | 2017-08-21 | 2020-11-04 | 株式会社オートネットワーク技術研究所 | リアクトル |
WO2019097574A1 (ja) * | 2017-11-14 | 2019-05-23 | 三菱電機株式会社 | 電力変換装置 |
US20190378647A1 (en) * | 2018-06-08 | 2019-12-12 | Murata Manufacturing Co., Ltd. | Inductor |
JPWO2020066631A1 (ja) * | 2018-09-28 | 2021-08-30 | 三菱電機株式会社 | リアクトル |
DE202018105660U1 (de) | 2018-10-02 | 2020-01-07 | Alanod Gmbh & Co. Kg | Elektroisoliertes elektrisches Leitungsband, insbesondere für Elektromotoren und Transformatoren |
CN112970079B (zh) * | 2018-11-02 | 2023-12-15 | 本田技研工业株式会社 | 电抗器及多相交错式dc-dc转换器 |
US11285827B2 (en) * | 2019-02-06 | 2022-03-29 | Ford Global Technologies, Llc | EV fast charging cord and receptacle |
CN113439314A (zh) * | 2019-02-22 | 2021-09-24 | 三菱电机株式会社 | 线圈装置以及电力变换装置 |
EP3839989A1 (de) * | 2019-12-19 | 2021-06-23 | Siemens Aktiengesellschaft | Luftdrosselspule mit temperaturmesssystem |
KR20220133639A (ko) * | 2021-03-25 | 2022-10-05 | 엘에스일렉트릭(주) | 절연형 컨버터용 외함 및 이를 이용한 절연형 컨버터 |
Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2007173702A (ja) * | 2005-12-26 | 2007-07-05 | Denso Corp | 温度検出型磁気装置 |
JP2009109437A (ja) * | 2007-10-31 | 2009-05-21 | Tamura Seisakusho Co Ltd | リードを有するセンサ素子の固定構造及び固定ユニット |
JP2012114302A (ja) * | 2010-11-26 | 2012-06-14 | Mitsubishi Electric Corp | リアクトル装置 |
WO2012114890A1 (ja) * | 2011-02-25 | 2012-08-30 | 住友電気工業株式会社 | リアクトル |
JP2012189555A (ja) * | 2011-03-14 | 2012-10-04 | Tamura Seisakusho Co Ltd | センサ固定構造 |
JP2012212708A (ja) * | 2011-03-30 | 2012-11-01 | Tamura Seisakusho Co Ltd | コイル装置 |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5463522A (en) * | 1993-07-27 | 1995-10-31 | Magnetek, Inc. | Housing and mounting arrangement for thermal protector device |
DE19852929C1 (de) * | 1998-11-17 | 2000-03-30 | Hanning Elektro Werke | Thermoschalter-Anordnung für elektromagnetische Spulen |
US6958579B2 (en) * | 2002-08-07 | 2005-10-25 | Ruud Lighting, Inc. | Thermally-protected ballast for high-intensity-discharge lamps |
JP2010245458A (ja) * | 2009-04-09 | 2010-10-28 | Sumitomo Electric Ind Ltd | リアクトル用コイル部材及びリアクトル |
JP5459120B2 (ja) * | 2009-07-31 | 2014-04-02 | 住友電気工業株式会社 | リアクトル、リアクトル用部品、及びコンバータ |
JP5708509B2 (ja) * | 2012-01-25 | 2015-04-30 | トヨタ自動車株式会社 | リアクトル |
-
2012
- 2012-11-01 JP JP2012242225A patent/JP5892337B2/ja not_active Expired - Fee Related
-
2013
- 2013-10-23 CN CN201380057362.8A patent/CN104769689B/zh not_active Expired - Fee Related
- 2013-10-23 WO PCT/JP2013/078745 patent/WO2014069312A1/ja active Application Filing
- 2013-10-23 DE DE112013005274.1T patent/DE112013005274B4/de not_active Expired - Fee Related
- 2013-10-23 US US14/436,223 patent/US9336942B2/en not_active Expired - Fee Related
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2007173702A (ja) * | 2005-12-26 | 2007-07-05 | Denso Corp | 温度検出型磁気装置 |
JP2009109437A (ja) * | 2007-10-31 | 2009-05-21 | Tamura Seisakusho Co Ltd | リードを有するセンサ素子の固定構造及び固定ユニット |
JP2012114302A (ja) * | 2010-11-26 | 2012-06-14 | Mitsubishi Electric Corp | リアクトル装置 |
WO2012114890A1 (ja) * | 2011-02-25 | 2012-08-30 | 住友電気工業株式会社 | リアクトル |
JP2012189555A (ja) * | 2011-03-14 | 2012-10-04 | Tamura Seisakusho Co Ltd | センサ固定構造 |
JP2012212708A (ja) * | 2011-03-30 | 2012-11-01 | Tamura Seisakusho Co Ltd | コイル装置 |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2017050457A (ja) * | 2015-09-03 | 2017-03-09 | トヨタ自動車株式会社 | リアクトル |
US20170154724A1 (en) * | 2015-11-26 | 2017-06-01 | Cyntec Co., Ltd. | Planar reactor |
US10134522B2 (en) * | 2015-11-26 | 2018-11-20 | Cyntec Co., Ltd. | Planar reactor |
JP2022145639A (ja) * | 2021-03-18 | 2022-10-04 | 乾坤科技股▲ふん▼有限公司 | 磁気コンポーネント |
Also Published As
Publication number | Publication date |
---|---|
CN104769689A (zh) | 2015-07-08 |
US20150287525A1 (en) | 2015-10-08 |
JP2014093375A (ja) | 2014-05-19 |
DE112013005274B4 (de) | 2018-02-15 |
DE112013005274T5 (de) | 2015-09-24 |
JP5892337B2 (ja) | 2016-03-23 |
US9336942B2 (en) | 2016-05-10 |
CN104769689B (zh) | 2017-04-05 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
JP5892337B2 (ja) | リアクトル、コンバータ、及び電力変換装置 | |
JP5120678B2 (ja) | リアクトル | |
JP5958877B2 (ja) | リアクトル、コンバータ、及び電力変換装置 | |
JP5120679B1 (ja) | リアクトル | |
JP5881015B2 (ja) | リアクトル、コンバータ、および電力変換装置 | |
WO2014069311A1 (ja) | リアクトル、コンバータ、及び電力変換装置 | |
JP4947503B1 (ja) | リアクトル、コンバータ、および電力変換装置 | |
JP4952963B1 (ja) | リアクトル、コンバータ、および電力変換装置 | |
JP2013222802A (ja) | リアクトル、リアクトル用ケース、コンバータ、及び電力変換装置 | |
JP2015053395A (ja) | リアクトル、コンバータ、および電力変換装置 | |
JP2012243913A (ja) | リアクトル | |
WO2014017149A1 (ja) | リアクトル、コンバータ、及び電力変換装置 | |
JP2012253384A (ja) | リアクトル、コンバータ、及び電力変換装置 | |
JP2013222813A (ja) | リアクトル、コンバータ、および電力変換装置 | |
JP2013145850A (ja) | リアクトル | |
JP2013179184A (ja) | リアクトル、コンバータ、および電力変換装置 | |
JP5954542B2 (ja) | リアクトル、コンバータ、電力変換装置、及びリアクトルの製造方法 | |
JP2012209341A (ja) | リアクトル | |
JP2013128098A (ja) | リアクトル、コンバータ、及び電力変換装置 | |
JP2015126146A (ja) | リアクトル |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
121 | Ep: the epo has been informed by wipo that ep was designated in this application |
Ref document number: 13851959 Country of ref document: EP Kind code of ref document: A1 |
|
WWE | Wipo information: entry into national phase |
Ref document number: 14436223 Country of ref document: US |
|
WWE | Wipo information: entry into national phase |
Ref document number: 1120130052741 Country of ref document: DE Ref document number: 112013005274 Country of ref document: DE |
|
122 | Ep: pct application non-entry in european phase |
Ref document number: 13851959 Country of ref document: EP Kind code of ref document: A1 |