WO2019216374A1 - Capteur de courant et procédé de fixation de capteur de courant - Google Patents

Capteur de courant et procédé de fixation de capteur de courant Download PDF

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Publication number
WO2019216374A1
WO2019216374A1 PCT/JP2019/018550 JP2019018550W WO2019216374A1 WO 2019216374 A1 WO2019216374 A1 WO 2019216374A1 JP 2019018550 W JP2019018550 W JP 2019018550W WO 2019216374 A1 WO2019216374 A1 WO 2019216374A1
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WO
WIPO (PCT)
Prior art keywords
current sensor
sensor
fixing
bus bar
base
Prior art date
Application number
PCT/JP2019/018550
Other languages
English (en)
Japanese (ja)
Inventor
純一 吉田
Original Assignee
三菱重工サーマルシステムズ株式会社
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 三菱重工サーマルシステムズ株式会社 filed Critical 三菱重工サーマルシステムズ株式会社
Publication of WO2019216374A1 publication Critical patent/WO2019216374A1/fr

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    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R15/00—Details of measuring arrangements of the types provided for in groups G01R17/00 - G01R29/00, G01R33/00 - G01R33/26 or G01R35/00
    • G01R15/14—Adaptations providing voltage or current isolation, e.g. for high-voltage or high-current networks
    • G01R15/18—Adaptations providing voltage or current isolation, e.g. for high-voltage or high-current networks using inductive devices, e.g. transformers
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
    • H02B1/00—Frameworks, boards, panels, desks, casings; Details of substations or switching arrangements
    • H02B1/015—Boards, panels, desks; Parts thereof or accessories therefor
    • H02B1/04—Mounting thereon of switches or of other devices in general, the switch or device having, or being without, casing

Definitions

  • the present invention relates to a current sensor and a method for mounting the current sensor.
  • Patent Document 1 describes that when a copper bus bar is connected to an output terminal of a control module such as a general-purpose inverter or high power switching, a current flowing through the bus bar is monitored by a through-type current sensor. . Furthermore, the current sensor described in Patent Document 1 can be attached to the control module.
  • Patent Document 1 By the way, in Patent Document 1 described above, after the current sensor is attached to the control module, a conductor such as a bus bar is passed through the current sensor and connected to the terminal of the control module.
  • the current sensor of Patent Document 1 includes a fixing screw on the outside in the width direction of a conductor such as a bus bar.
  • a fixing screw is disposed at a position overlapping the conductor such as a bus bar. May be. Therefore, after installing the current sensor, it is necessary to pass a conductor such as a bus bar through the current sensor.
  • the bus bar described above often passes a large current, it is preferable to lay it at the shortest distance from the viewpoint of preventing electric shock and reducing electrical resistance.
  • the current sensor described in Patent Document 1 is an arrangement of current sensors. Since it is necessary to form a conductor such as a bus bar based on the above, the shape of the conductor may be complicated.
  • the present invention has been made in view of the above circumstances, and provides a current sensor and a method of attaching the current sensor that can improve the degree of freedom of arrangement of components in the periphery and can suppress the complexity of the shape of the conductor.
  • the current sensor is a current sensor that is mounted on the mounting surface of the mounting object, and has a through hole, and a sensor body that can detect a current passing through the through hole. And a base portion having a mounting surface to which the sensor main body portion can be mounted, and a first fixing portion that detachably fixes the base portion to the mounting surface in a direction intersecting the mounting surface. .
  • the base portion on which the sensor main body portion is mounted can be attached to and detached from the mounting surface in a direction intersecting the mounting surface by the first fixing portion.
  • a base part can be made to approach in the direction which crosses an attachment surface, and a base part can be fixed to an attachment surface. Therefore, it is not necessary to secure a space for allowing the conductor to penetrate the through hole. Therefore, it is possible to improve the degree of freedom of arrangement of peripheral parts.
  • the sensor main body is mounted on the base, the degree of freedom of arrangement of the sensor main body relative to the base can be improved. Therefore, it is not necessary to make the conductor a shape according to the arrangement of the sensor main body, and it is possible to prevent the conductor shape from becoming complicated.
  • the first fixing portion according to the first aspect may hold the base portion at a position away from the mounting surface.
  • a space can be formed between the base portion and the mounting surface. Therefore, the space formed between the base portion and the mounting surface can be effectively used as a space for arranging wiring, components, and the like, for example.
  • the current sensor according to the first or second aspect may include a second fixing portion that detachably fixes the sensor main body portion to the base portion.
  • a sensor main-body part can be attached or detached with respect to a base part with a 2nd fixing
  • the current sensor according to any one of the first to third aspects may include a positioning part that positions a conductor that penetrates the through hole of the sensor main body part. .
  • a positioning part that positions a conductor that penetrates the through hole of the sensor main body part.
  • the first fixing portion according to any one of the first to fourth aspects is configured so that the sensor is viewed from a direction intersecting the mounting surface with respect to the base portion. You may make it fix in the position which does not overlap with the conductor which penetrates the through-hole of a main-body part.
  • fixed part to a base part can be performed easily.
  • the use of the tool is not hindered by the conductor, so that the tool can be used smoothly.
  • the current sensor mounting method includes a step of mounting the sensor main body portion having a through hole on the mounting surface of the base portion, and a conductor is passed through the through hole of the sensor main body portion. And a step of attaching the base portion to the attachment surface of the attachment object from a direction intersecting the attachment surface.
  • the current sensor and the current sensor mounting method it is possible to improve the degree of freedom of arrangement of components in the periphery and to suppress the complexity of the shape of the conductor.
  • a current sensor and a method for attaching the current sensor in the embodiment of the present invention will be described with reference to the drawings.
  • a current sensor used for the inverter control unit of the air conditioner will be described as an example of the current sensor, but the current sensor is not limited to that used for the inverter control unit of the air conditioner.
  • FIG. 1 is a side view showing the arrangement of current sensors in the first embodiment of the present invention.
  • FIG. 2 is a plan view showing the arrangement of the current sensors in the first embodiment of the present invention.
  • the current sensor 100 according to the first embodiment detects a current flowing through a bus bar 103 that is a conductor connecting the power module 101 and the terminal block 102.
  • the power module 101 is fixed to the sheet metal part 30 of the housing 20 that houses the inverter control part 10.
  • the power module 101 in the first embodiment is formed in a square block shape in plan view.
  • the power module 101 according to the first embodiment includes a terminal portion 101t at a position closest to the terminal block 102 on the surface 101a opposite to the sheet metal portion 30.
  • the terminal portion 101t can fix the first end portion 103A of the bus bar 103 with a first fastener 104 such as a screw.
  • the case where the first fastener 104 is a screw is illustrated.
  • the first end portion 103A becomes the terminal portion 101t.
  • the terminal portion 101t and the bus bar 103 are electrically connected to each other.
  • the first fastener 104 in this embodiment can be screwed into the terminal portion 101t from the direction Dh (more specifically, the upper side in FIG. 1) intersecting the sheet metal portion 30 to which the power module 101 is fixed. It has become.
  • the first fastener 104 is a screw and the bus bar 103 is fixed to the terminal portion 101t by the screw action of the first fastener 104 has been described.
  • the first fastener 104 is not limited to this configuration.
  • the first fastener 104 may have any configuration as long as the first end portion 103A of the bus bar 103 can be sandwiched and fixed to the terminal portion 101t.
  • the terminal block 102 is mounted on the substrate unit 105.
  • the terminal block 102 includes a terminal portion 102 t at the end opposite to the substrate portion 105.
  • the terminal portion 102t can fix the second end portion 103B of the bus bar 103 located on the opposite side to the first end portion 103A described above by a second fastener 106 such as a screw.
  • a wiring (not shown) connected to a load such as a compressor is electrically connected to the terminal portion 102t of the terminal block 102, and the bus bar 103 and a load such as the compressor are connected via this wiring. Electrically connected.
  • the terminal portion 102t of the terminal block 102 is located farther from the sheet metal portion 30 than the terminal portion 101t of the power module 101 described above in the direction Dh intersecting the sheet metal portion 30 (in other words, the vertical direction in FIG. 1). Is provided. Similar to the first fastener 104, the second fastener 106 in the first embodiment is a screw. Therefore, the second end portion 103B is inserted into the female screw portion of the terminal portion 102t by passing the male screw portion of the second fastener 106 through the mounting hole 103Bh formed in the second end portion 103B. The terminal portion 102t and the bus bar 103 are electrically connected by being fixed to 102t. Note that, like the first fastener 104, the second fastener 106 can be screwed into the terminal portion 102t from the direction Dh intersecting the sheet metal portion 30 (more specifically, the upper portion in FIG. 1). ing.
  • the substrate unit 105 is supported by the sheet metal unit 30 via a plurality of support members 107.
  • the support member 107 exemplified in the first embodiment holds the substrate unit 105 at a position away from the sheet metal unit 30 so that the substrate unit 105 does not contact the sheet metal unit 30.
  • the substrate portion 105 in the first embodiment is formed in a rectangular flat plate shape in plan view, and is held by the support member 107 in a posture substantially parallel to the sheet metal portion 30.
  • the support member 107 in this first embodiment is detachably fixed to the substrate unit 105 in the vicinity of the four corners of the substrate unit 105. Further, the support member 107 in the first embodiment has a claw or the like that is locked by being inserted into a hole formed in the sheet metal part 30 and the substrate part 105 and can be released by being removed. It is formed in a column shape having a locking mechanism at both ends. That is, the support member 107 in the first embodiment can be attached to and detached from the sheet metal part 30 and the substrate part 105 without using a tool.
  • the bus bar 103 is a conductor that electrically connects the terminal portion 101t and the terminal portion 102t described above.
  • the bus bar 103 is formed in a strip shape made of a metal such as copper having high conductivity.
  • the bus bar 103 in the first embodiment includes the first end portion 103A and the second end portion 103B, and is formed so that the width dimension W1 thereof is substantially constant. Further, the bus bar 103 in the first embodiment includes a parallel portion 103C and a vertical portion 103D between the above-described first end portion 103A and second end portion 103B.
  • the parallel part 103C extends so that the second end part 103B extends to the power module 101 side in a state where the bus bar 103 is connected to the terminal part 101t and the terminal part 102t.
  • the parallel part 103 ⁇ / b> C extends substantially parallel to the substrate part 105 and the sheet metal part 30.
  • the parallel part 103C in this 1st embodiment has reached the position between the board
  • the vertical portion 103D connects the end portion of the parallel portion 103C closer to the power module 101 and the terminal portion 101t.
  • the vertical portion 103D extends from the end of the parallel portion 103C on the side close to the power module 101 in the direction Dh intersecting the sheet metal portion 30 (in other words, perpendicular to the parallel portion 103C) and reaches the first end portion 103A.
  • the angle formed by the vertical portion 103D and the first end portion 103A exemplified in the first embodiment is vertical.
  • the first end portion 103A described above extends from the end portion of the vertical portion 103D on the side close to the sheet metal portion 30 to the power module 101 side in parallel with the sheet metal portion 30.
  • the bus bar 103 in the first embodiment has a first end portion 103A, a vertical portion 103D, a parallel portion 103C, and a second end portion 103B, and is formed in a crank shape in a side view.
  • the current sensor 100 detects the current flowing through the bus bar 103 in the parallel portion 103C.
  • the current sensor 100 includes a sensor main body part 110, a base part 111, and a first fixing part 112.
  • the sensor body 110 includes a sensor part 110A and a second fixing part 110B.
  • the sensor unit 110A is formed of a current transformer or the like having a through hole 110h.
  • This sensor part 110A is formed indivisible in the circumferential direction of the through hole 110h.
  • 110 A of sensor parts are the attitude
  • the axis a of the through hole 110h extends substantially parallel to the above-described sheet metal part 30 and the substrate part 105.
  • the direction in which the axis a extends is simply referred to as the axis direction Da.
  • the second fixing part 110B fixes the sensor part 110A to the base part 111.
  • the second fixing portion 110 ⁇ / b> B in the first embodiment is disposed between the bus bar 103 and the base portion 111 in a state where the mounting operation of the current sensor 100 is completed.
  • the second fixing portion 110B includes a protruding portion 110BA that protrudes from the sensor portion 110A in the axial direction Da of the through hole 110h, in other words, in the direction in which the power module 101 is disposed, and the protruding portion 110BA with respect to the base portion 111. And a fastener 110BB to be fixed.
  • the fastener 110BB penetrates the protruding portion 110BA from the direction Dh intersecting the sheet metal portion 30, and is detachably fixed to the base portion 111 by a screw action.
  • Two fasteners 110BB in the first embodiment are provided at intervals in a direction (hereinafter simply referred to as the width direction Dw) that intersects the axis a of the through hole 110h and is parallel to the sheet metal part 30 and the substrate part 105. It has been.
  • One of these two fasteners 110BB illustrates the case where it is arranged at a position overlapping the bus bar 103 when viewed from the direction Dh intersecting the sheet metal part 30.
  • the tool cannot be inserted into the fastener 110BB in a state where the bus bar 103 is inserted into the through hole 110h. Therefore, in a state where the bus bar 103 is inserted into the through hole 10h, the second fixing portion 110B cannot be attached to and detached from the base portion 111.
  • the base 111 has a mounting surface 111a to which the sensor main body 110 can be mounted.
  • the base portion 111 exemplified in the first embodiment is formed in a rectangular shape larger than the sensor main body portion 110 in plan view, and is formed in a flat plate shape extending in the width direction Dw and the axial direction Da. Further, the base portion 111 exemplified in the first embodiment is formed so as to protrude from the sensor main body portion 110 in the width direction Dw, and the first fixing portion 112 can be fixed to the protruding portion.
  • the first fixing portion 112 is in a direction intersecting the surface 105a (in other words, a direction Dh intersecting the sheet metal portion 30) with respect to the surface 105a (attachment surface) of the substrate portion 105 which is an attachment target to which the current sensor 100 is attached.
  • the base portion 111 is detachably fixed.
  • two first fixing portions 112 are provided, and the first fixing portions 112 removably support both sides of the base portion 111 in the width direction Dw. That is, the first fixing portion 112 is disposed at a position that does not overlap the bus bar 103 when viewed from the direction Dh that intersects the sheet metal portion 30.
  • first fixing portions 112 are also detachable from the substrate portion 105.
  • first fixing portion 112 a columnar member having locking mechanisms similar to those of the support member 107 described above at both ends can be used.
  • the base portion 111 can be attached to and detached from the first fixing portion 112 or the substrate portion 105 without using a tool.
  • the two first fixing portions 112 in the first embodiment are formed with the same length, and the posture of the base portion 111 fixed by the first fixing portion 112 is substantially parallel to the substrate portion 105. It has become an attitude.
  • FIG. 3 is a flowchart of the current sensor mounting method according to the first embodiment of the present invention.
  • FIG. 4 is a side view showing a process of inserting a bus bar into the sensor main body according to the first embodiment of the present invention.
  • FIG. 5 is a side view showing a process of fixing the current sensor to the substrate in the first embodiment of the present invention.
  • the sensor body 110 is mounted on the mounting surface 111a of the base 111 (step S01). Specifically, the sensor body 110 is fixed to the mounting surface 111a of the base 111 by the second fixing part 110B.
  • the bus bar 103 is passed through the through hole 110h of the sensor main body 110 (step S02). More specifically, the bus bar 103 is inserted into the through hole 110h from the second end portion 103B so that the sensor main body 110 is disposed at the position of the parallel portion 103C.
  • the base 111 is mounted on the surface 105a of the substrate 105 from the direction intersecting the surface 105a (in other words, the direction Dh intersecting the sheet metal part 30) (step S03). . Specifically, the base portion 111 of the current sensor 100 in a state where the bus bar 103 is penetrated is disposed so as to face the substrate portion 105, and the base portion 111 is placed with respect to the substrate portion 105 in the direction Dh intersecting the sheet metal portion 30. Move closer. Then, the base unit 111 is fixed to the substrate unit 105 by the first fixing unit 112.
  • the first fixing portion 112 may fix the other end portion to the substrate portion 105 after fixing one end portion to the base portion 111.
  • first end portion 103A and the second end portion 103B of the bus bar 103 are fixed to the terminal portions 101t and 102t by the fasteners 104 and 106 (not shown in FIG. 5), respectively.
  • the base portion 111 on which the sensor main body portion 110 is mounted is made to the surface 105a of the substrate portion 105 in a direction intersecting the surface 105a of the substrate portion 105 by the first fixing portion 112. Can be attached and detached.
  • the base portion 111 is moved closer to the surface 105 a of the substrate portion 105 in the direction intersecting the surface 105 a, so that the base portion 111 is moved to the surface 105 a of the substrate portion 105.
  • the degree of freedom in arranging the sensor main body 110 with respect to the base 111 can be improved.
  • the first fixing portion 112 holds the base portion 111 at a position away from the surface 105 a of the substrate portion 105. Therefore, a space can be formed between the base portion 111 and the surface 105 a of the substrate portion 105. As a result, the space formed between the base portion 111 and the surface 105a of the substrate portion 105 can be effectively used as a space for arranging wiring, components, and the like, for example.
  • the sensor main body 110 can be attached to and detached from the base 111 by providing the second fixing portion 110B. Therefore, the sensor main body 110 can be easily replaced.
  • the first fixing portion 112 is fixed to the base portion 111 at a position that does not overlap the bus bar 103 when viewed from the direction Dh intersecting the sheet metal portion 30. Therefore, when the first fixing portion 112 is fixed to the base portion 111, the visual field is not blocked by the bus bar 103, so that the operation of fixing the first fixing portion 112 to the base portion 111 can be easily performed.
  • FIG. 6 is a side view corresponding to FIG. 1 in the second embodiment of the present invention.
  • FIG. 7 is a plan view corresponding to FIG. 2 in the second embodiment of the present invention.
  • the current sensor 200 in the second embodiment is similar to the current sensor 100 of the first embodiment in the bus bar 103 that is a conductor connecting the power module 101 and the terminal block 102.
  • the flowing current is detected.
  • the substrate unit 205 is supported by the sheet metal unit 30 via a plurality of support members 107 in the same manner as the substrate unit 105 of the first embodiment described above. These support members 107 hold the substrate portion 205 at a position away from the sheet metal portion 30 so that the substrate portion 205 does not contact the sheet metal portion 30.
  • the substrate unit 205 is formed in a rectangular flat plate shape in plan view, and is held by the support member 107 in a posture substantially parallel to the sheet metal unit 30. .
  • the substrate unit 205 does not include an attachment surface to which the current sensor 200 is attached, unlike the substrate unit 105 of the first embodiment. Therefore, the substrate part 205 is formed to have a smaller dimension in the axial direction Da than the substrate part 205 of the first embodiment. Further, the substrate unit 205 is disposed away from the power module 101 in the axial direction Da so that the current sensor 200 can be disposed between the substrate unit 205 and the power module 101 in the axial direction Da.
  • the terminal block 102 in the second embodiment is mounted on the substrate unit 205. And the terminal part 102t of this terminal block 102 is from the terminal part 101t of the power module 101 mentioned above in the direction Dh (in other words, the up-down direction of FIG. 6) which cross
  • the bus bar 103 has the same configuration as that of the first embodiment, and is formed in a band shape having a constant width dimension W1 made of metal such as copper having high conductivity.
  • the bus bar 103 includes a first end portion 103A, a second end portion 103B, a parallel portion 103C, and a vertical portion 103D.
  • the current sensor 200 includes a sensor main body part 110, a base part 111, and a first fixing part 212.
  • the same sensor body 110 as that of the first embodiment can be used.
  • the sensor body 110 includes a sensor part 110A and a second fixing part 110B.
  • 110 A of sensor parts are the attitude
  • the second fixing part 110B fixes the sensor part 110A to the base part 111.
  • the second fixing portion 110 ⁇ / b> B is disposed between the bus bar 103 and the base portion 111 in the direction Dh intersecting the sheet metal portion 30 in a state where the mounting operation of the current sensor 200 is completed.
  • fixed part 110B is provided with protrusion 110BA and fastener 110BB similarly to 1st embodiment.
  • the fastener 110BB penetrates the protruding portion 110BA from the direction Dh intersecting the sheet metal portion 30, and is detachably fixed to the base portion 111 by a screw action.
  • two fasteners 110BB in the second embodiment are also provided at intervals in the width direction Dw.
  • One of these two fasteners 110BB is disposed at a position overlapping the bus bar 103 when viewed from the direction Dh intersecting the sheet metal part 30. That is, in the state where the bus bar 103 is inserted into the through hole 110h, the tool cannot be inserted into the fastener 110BB. Therefore, in a state where the bus bar 103 is inserted into the through hole 110h, the second fixing portion 110B cannot be detached from the base portion 111.
  • the base 111 has a mounting surface 111a to which the sensor main body 110 can be mounted.
  • the base portion 111 is formed so as to protrude from the sensor body 110 in the width direction Dw, and the first fixing portion 212 can be fixed to the protruding portion.
  • the first fixing part 212 removably fixes the base part 111 in the direction Dh intersecting the sheet metal part 30 with respect to the inner surface 30a (attachment surface) of the sheet metal part 30 as an attachment object to which the current sensor 200 is attached.
  • two first fixing portions 212 are provided, and these first fixing portions 212 are detachable on both sides of the base portion 111 in the width direction Dw. I support it. That is, the first fixing portion 212 is disposed at a position that does not overlap the bus bar 103 when viewed from the direction Dh that intersects the sheet metal portion 30.
  • first fixing portions 212 can also be attached to and detached from the sheet metal portion 30.
  • fixed part 212 the columnar member which has the latching mechanism similar to the 1st fixing
  • the base part 111 can be attached to and detached from the first fixing part 212 or the sheet metal part 30 without using a tool.
  • the two first fixing portions 212 exemplified in the second embodiment are formed with the same length, and the posture of the base portion 111 fixed by the first fixing portion 212 is substantially the same as that of the sheet metal portion 30. The posture is parallel to.
  • FIG. 8 is a flowchart corresponding to FIG. 3 in the second embodiment of the present invention.
  • FIG. 9 is a side view showing the attachment procedure of the current sensor in the second embodiment of the present invention.
  • the mounting method of the current sensor 200 in the second embodiment is different from the mounting method of the current sensor 100 of the first embodiment only in the mounting object.
  • the sensor main body 110 is mounted on the mounting surface 111a of the base 111 (step S01). Further, the bus bar 103 is passed through the through hole 110h of the sensor body 110 (step S02).
  • the base part 111 is mounted from the direction Dh intersecting the sheet metal part 30 on the inner surface 30a of the sheet metal part 30 between the power module 101 and the substrate part 205 in the axial direction Da (step S13). Specifically, the base portion 111 of the current sensor 200 in a state where the bus bar 103 is penetrated is disposed so as to face the sheet metal portion 30, and the base portion 111 is placed on the sheet metal portion 30 in a direction Dh that intersects the sheet metal portion 30. Approach. Then, the base portion 111 is fixed to the sheet metal portion 30 by the first fixing portion 212.
  • the first fixing part 212 may fix the other end to the sheet metal part 30 after fixing one end to the base part 111.
  • first end portion 103A and the second end portion 103B of the bus bar 103 are fixed to the terminal portions 101t and 102t by the fasteners 104 and 106 (not shown in FIG. 9), respectively.
  • the substrate unit 205 is configured as shown in FIG.
  • the size can be reduced from the size indicated by the alternate long and short dash line to the size indicated by the solid line.
  • FIG. 10 is a plan view of a current sensor in a first modification of the first and second embodiments of the present invention.
  • a positioning unit 301 that positions the bus bar 103 that passes through the through hole 110 h of the sensor main body 110 may be provided.
  • the positioning part 301 exemplified in the first modification is formed so as to protrude from the base part 111 in the direction Dh intersecting the sheet metal part 30.
  • the positioning portions 301 are respectively arranged on both sides of the sensor main body 110 in the axial direction Da. These positioning portions 301 can stabilize the position of the bus bar 103 before being fixed to the terminal portion 101t and the terminal portion 102t. Therefore, when attaching the current sensor 300 to the board part 105 or the sheet metal part 30, it is not necessary to suppress the bus bar 103 from dropping off from the current sensor 300, and the burden on the operator can be reduced.
  • the two positioning portions 301 in this first modification have a case where the protruding portions 302 protrude in the direction Dh intersecting the sheet metal portion 30 so as to sandwich both side portions of the bus bar 103 in the width direction Dw.
  • any configuration is possible as long as the bus bar 103 can be positioned.
  • the present invention is not limited to the configuration of each of the embodiments described above, and the design can be changed without departing from the gist thereof.
  • the shape of the bus bar 103 is not limited to the shape of the bus bar 103 in the above-described embodiment.
  • the conductor which penetrates the current sensors 100, 200 and 300 is not limited to the bus bar.
  • the second fixing portion 110B may be omitted, and the sensor main body portion 110 may be fixed to the base portion 111 by adhesion or solder so that it cannot be easily attached or detached.
  • the sensor main body portion 110 may be configured to be detachable from the base portion 111.
  • the first fixing that can be attached and detached without using a tool.
  • a locking mechanism similar to that of the portion 112 may be used, or other fasteners such as a hook-and-loop fastener and a double-sided tape may be used.
  • the mechanism that can be attached and detached by the first fixing portion 112 is not limited to the above-described locking mechanism.
  • it may be detachable using screw fasteners such as screws or bolts, or may be detachable using a hook-and-loop fastener or double-sided tape.
  • the first fixing portion 112 when a screw fastener such as a screw or a bolt is used in the first fixing portion 112, the first fixing portion 112 intersects the surface 105a of the substrate portion 105 (in other words, the direction intersecting the sheet metal portion 30). Dh) may be fixed to the base portion 111 at a position that does not overlap with the bus bar 103.
  • Dh may be fixed to the base portion 111 at a position that does not overlap with the bus bar 103.
  • the first fixing portion 112 may detachably fix the base portion 111 to the surface 105a in a state where the base portion 111 and the substrate portion 105 are in contact with each other.
  • the first fixing portion 212 may detachably fix the base portion 111 to the inner surface 30a in a state where the base portion 111 and the sheet metal portion 30 are in contact with each other.
  • the board part 105 and the sheet metal part 30 of the housing 20 are exemplified as the attachment object.
  • the attachment object is limited to the board part 105 and the sheet metal part 30 of the housing 20. I can't.
  • the current sensor and the current sensor mounting method it is possible to improve the degree of freedom of arrangement of components in the periphery and to suppress the complexity of the shape of the conductor.

Abstract

L'invention concerne un capteur de courant (100) monté sur une surface de fixation (105a) d'un objet cible de fixation (105). Le capteur de courant (100) est pourvu d'une partie corps principal de capteur (110) comportant un trou traversant (110h) et qui est capable de détecter un courant pénétrant par le trou traversant (110h), une partie de base (111) comportant une surface de montage (111a) sur laquelle la partie corps principal de capteur (110) peut être montée, et une première partie de fixation (112) qui fixe la partie de base (111) de façon détachable à la surface de fixation (105a), dans une direction croisant la surface de fixation (105a).
PCT/JP2019/018550 2018-05-11 2019-05-09 Capteur de courant et procédé de fixation de capteur de courant WO2019216374A1 (fr)

Applications Claiming Priority (2)

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JP2018092322A JP2019197024A (ja) 2018-05-11 2018-05-11 電流センサー及び電流センサーの取り付け方法
JP2018-092322 2018-05-11

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WO2019216374A1 true WO2019216374A1 (fr) 2019-11-14

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