WO2024029319A1 - 端子台 - Google Patents
端子台 Download PDFInfo
- Publication number
- WO2024029319A1 WO2024029319A1 PCT/JP2023/026179 JP2023026179W WO2024029319A1 WO 2024029319 A1 WO2024029319 A1 WO 2024029319A1 JP 2023026179 W JP2023026179 W JP 2023026179W WO 2024029319 A1 WO2024029319 A1 WO 2024029319A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- bus bar
- magnetic member
- terminal block
- magnetic
- block according
- Prior art date
- Legal status (The legal status 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 status listed.)
- Ceased
Links
Images
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R9/00—Structural associations of a plurality of mutually-insulated electrical connecting elements, e.g. terminal strips or terminal blocks; Terminals or binding posts mounted upon a base or in a case; Bases therefor
- H01R9/22—Bases, e.g. strip, block, panel
- H01R9/24—Terminal blocks
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
- H01R13/66—Structural association with built-in electrical component
- H01R13/719—Structural association with built-in electrical component specially adapted for high frequency, e.g. with filters
- H01R13/7193—Structural association with built-in electrical component specially adapted for high frequency, e.g. with filters with ferrite filters
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R9/00—Structural associations of a plurality of mutually-insulated electrical connecting elements, e.g. terminal strips or terminal blocks; Terminals or binding posts mounted upon a base or in a case; Bases therefor
- H01R9/22—Bases, e.g. strip, block, panel
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K5/00—Casings; Enclosures; Supports
- H02K5/04—Casings or enclosures characterised by the shape, form or construction thereof
- H02K5/22—Auxiliary parts of casings not covered by groups H02K5/06-H02K5/20, e.g. shaped to form connection boxes or terminal boxes
-
- 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
- H02M7/00—Conversion of AC power input into DC power output; Conversion of DC power input into AC power output
- H02M7/42—Conversion of DC power input into AC power output without possibility of reversal
- H02M7/44—Conversion of DC power input into AC power output without possibility of reversal by static converters
- H02M7/48—Conversion of DC power input into AC power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode
Definitions
- the present invention relates to a terminal block.
- Patent Document 1 a terminal block that is attached to a case containing a rotating electric machine is well known.
- This terminal block has a power connector that relays power to the rotating electric machine.
- the power connector has three power terminal boards extending across the pedestal of the terminal block.
- the rotating electric machine inside the case is electrically connected to an inverter that controls the power of the vehicle's battery through a terminal block.
- An object of the present disclosure is to provide a terminal block that can improve surge resistance.
- a terminal block that solves the above problem includes one or more busbars to which a load is connected to one end of each end, a main body that supports the busbars and is attached to an attachment point, and a surge generated by driving the load.
- a magnetic member is provided on the stand main body so as to surround the bus bar.
- the present disclosure can improve surge resistance in a terminal block.
- FIG. 1 is a perspective view of the terminal block seen from the front in the first embodiment.
- FIG. 2 is a perspective view of the terminal block seen from the back.
- FIG. 3 is a sectional view taken along line III--III shown in FIG. 4.
- FIG. 4 is a sectional view taken along the line IV--IV shown in FIG. 3.
- FIG. 5 is a perspective view of a bus bar to which magnetic members are attached.
- FIG. 6 is a perspective view showing how to attach the magnetic member to the bus bar.
- FIG. 7 is a sectional view taken along the line VII-VII shown in FIG. 4.
- FIG. 8 is a sectional view of the terminal block according to the second embodiment.
- FIG. 9 is a sectional view taken along the line IX-IX shown in FIG. 8.
- FIGS. 1 is a perspective view of the terminal block seen from the front in the first embodiment.
- FIG. 2 is a perspective view of the terminal block seen from the back.
- FIG. 3 is a sectional
- FIG. 10(a) to 10(d) are explanatory diagrams of the assembly of the terminal block.
- FIG. 11 is a sectional view of the terminal block according to the third embodiment.
- FIGS. 12(a) to 12(c) are explanatory diagrams of the assembly of the terminal block.
- FIG. 13 is a sectional view of the terminal block according to the fourth embodiment.
- FIGS. 14(a) and 14(b) are explanatory diagrams of the assembly of the terminal block.
- FIG. 15 is a front view of a terminal block in another example.
- FIG. 16 is a perspective view of a bus bar to which a magnetic member is attached in another example.
- FIG. 17 is a schematic diagram of a bus bar to which a magnetic member is attached in another example.
- FIG. 18 is an explanatory diagram of the drawbacks of the conventional shape according to another example.
- the terminal block of the present disclosure includes one or more bus bars to which a load is connected to one end of both ends, a base body that supports the bus bar and is attached to an attachment destination, and a terminal block that is generated by driving the load.
- a magnetic member is provided on the stand main body so as to surround the bus bar.
- the magnetic member is arranged around the bus bar, it becomes possible to absorb the noise current caused by the surge voltage when driving the load by the magnetic member. Therefore, the occurrence of partial discharge due to surge voltage can be suppressed by the magnetic member. Therefore, it is possible to improve surge resistance.
- the magnetic member is formed in a shape to which the plurality of bus bars can be attached. According to this configuration, since a plurality of bus bars are attached to one magnetic member, it becomes possible to cancel out noise currents that may occur in each bus bar by the magnetic member. Therefore, it further contributes to improving surge resistance.
- the magnetic member has a hole for each bus bar into which the bus bar is inserted. According to this configuration, it is easy to know in which hole of the magnetic member the bus bar should be set.
- the magnetic member has one hole into which the plurality of bus bars can be inserted all at once. According to this configuration, it becomes possible to put a plurality of bus bars into the hole of the magnetic member at once, making it easier to set the bus bar in the hole. Further, it is also possible to make the magnetic member a one-piece structure instead of a divided structure.
- the stand main body is a resin mold integrally formed with the bus bar and the magnetic member. According to this configuration, it is possible to configure the bus bar, the base body, and the magnetic member as one integral part (assembly).
- the stand main body has an insulating part formed by resin entering between the bus bar and the magnetic member. According to this configuration, insulation between the bus bar and the magnetic member can be ensured by the insulating portion.
- the bus bar and the stand main body are an integrated product configured as one component, and the magnetic member is formed to surround the integrated product.
- the shape of the magnetic member is such that it surrounds the bus bar, it is possible to minimize the inner diameter of the magnetic member, so it is possible to set the impedance of the magnetic member to be large. Become. Therefore, it becomes possible to improve the noise removal performance of the magnetic member.
- the magnetic member is a strip-shaped magnetic foil wound multiple times around the integrated product. According to this configuration, it is possible to form a magnetic member by a simple method of winding a band-shaped magnetic foil around an integral product.
- the stand main body is an insulating resin that insulates the bus bar, and the magnetic member is formed in a shape surrounding the insulating resin and is a magnetic resin containing magnetic powder. . According to this configuration, it is possible to manufacture an assembly including the magnetic member by a simple method such as resin insert molding.
- the bus bar has an insulating layer on the surface, and the base body is formed in a shape surrounding the bus bar, and is made of a magnetic resin containing magnetic powder as the magnetic member. It is. According to this configuration, since the stand main body itself contains magnetic powder, there is no need to attach a separate magnetic member to the stand main body. Therefore, it is possible to downsize the stand body.
- the insulating layer is an enamel film. According to this configuration, it is possible to use a general-purpose bus bar whose surface is coated with an enamel film. [12] In any one of [1] to [11] above, the device includes a sealing portion that seals between the bus bar and the stand main body. According to this configuration, the gap between the bus bar and the base body is sealed by the sealing portion. Therefore, it becomes possible to make it difficult for fluid or foreign matter to enter through the gap between the bus bar and the base body.
- the stand main body includes a mounting portion fixed to the mounting point by a fastener, and a first portion extending from the mounting portion toward the load. and a second portion extending from the attachment portion in a direction opposite to the load.
- the base body can be attached to the attachment destination by fixing the attachment portion to the attachment destination with the fastener.
- the magnetic member is arranged at the first portion. According to this configuration, even if the size of the second part is not sufficient due to the arrangement space of the terminal block and the magnetic member cannot be placed in the second part, the magnetic member can be provided in the first part. It becomes possible to deal with this.
- the magnetic member is arranged at the second portion. According to this configuration, even if the size of the first part is not sufficient due to the arrangement space of the terminal block and the magnetic member cannot be placed in the first part, the magnetic member can be provided in the second part. It becomes possible to deal with this.
- the terminal block includes a sealing part that seals between the bus bar and the stand main body, and the sealing part is arranged in the second part. According to this configuration, it is possible to arrange the sealing part at a position away from the load, so it is possible to increase the distance between the load and the sealing part. Therefore, fluid and foreign matter flowing out from the load are less likely to reach the sealing portion, which is more advantageous in preventing fluid and foreign matter from leaking from the sealing portion.
- the bus bar is provided with three phases, U-phase, V-phase, and W-phase, and the bus bar has three-phase AC currents whose phases differ by 120 degrees from each other. A signal is sent. According to this configuration, three-phase AC signals that are out of phase with each other by 120 degrees are passed through the three busbars, so even if noise currents occur in the three busbars, they cancel each other out and return to "0". easy to become Therefore, it further contributes to improving surge resistance.
- the bus bar includes a rod-shaped portion at least a portion of which is inserted into the base body, and a flat plate-shaped portion provided at both ends of the rod-shaped portion as a connection point. and a processed flat plate part, and the magnetic member is provided so as to surround the rod-shaped part.
- At least one of the plurality of bus bars is bent in a region surrounded by the magnetic member so as to approach the bus bar located next to it. It has a bent part. According to this configuration, in a region surrounded by the magnetic member, it is possible to bring adjacent bus bars as close as possible to each other by the bent portions. Therefore, it is possible to reduce the size of the magnetic member. This further contributes to miniaturization of the terminal block.
- the terminal block 1 includes one or more bus bars 3 to which a load 2 is connected to one end 3a of both ends, and a base body 4 that supports the bus bar 3.
- the load 2 is, for example, a motor, and in this example, a three-phase AC motor.
- three bus bars 3 are provided: a U-phase, a V-phase, and a W-phase.
- Three-phase alternating current signals whose phases differ by 120 degrees from each other are passed through the bus bar 3 .
- the other end 3b of the bus bar 3 is connected to an inverter 5 that controls the frequency of power supplied to the load 2.
- a high voltage and large current necessary for a three-phase AC motor are passed through the bus bar 3.
- the stand main body 4 is attached to the attachment destination 7 by fitting.
- the attachment point 7 is, for example, a case that accommodates the load 2.
- the stand main body 4 includes a mounting portion 9 fixed to the mounting point 7 by a fastener 8, a first portion 10 extending from the mounting portion 9 toward the load 2, and a direction opposite to the load 2 from the mounting portion 9. and a second portion 11 extending to.
- the mounting portion 9 is, for example, formed into a collar shape.
- a total of two holes 12 for passing the fasteners 8 are provided at both longitudinal ends of the mounting portion 9 (both ends in the Y-axis direction in FIG. 1).
- the stand main body 4 is attached to the attachment destination 7 by passing the fastener 8 through the collar 13 inserted into the hole 12 and fixing the fastener 8 in the recess 14 of the attachment part 9.
- the fastener 8 is, for example, a bolt.
- the first portion 10 is formed into a block shape (for example, a substantially rectangular parallelepiped shape) into which a plurality of bus bars 3 can be inserted.
- the first portion 10 is fitted into a recess 15 formed in the attachment destination 7 when the terminal block 1 is attached to the attachment destination 7 .
- a wall 17 is formed in the first portion 10 to insulate adjacent bus bars 3 from each other.
- a plurality of holes 18 are formed in the first portion 10 for inserting positioning pins (not shown) of the mold when forming the terminal block 1 with a mold.
- the second portion 11 has a cylindrical portion 16 for each bus bar 3 into which one bus bar 3 is inserted.
- the second portion 11 has three cylindrical portions 16.
- the terminal block 1 includes an elastic member 19 that seals between the base body 4 and the mounting portion 9.
- the elastic member 19 has, for example, an annular shape.
- the elastic member 19 is, for example, a rubber packing made of acrylic material, silicone material, or the like.
- the elastic member 19 has a hole 20 through which the base body 4 (first portion 10) passes.
- the elastic member 19 is fixed to the mounting portion 9 by, for example, engaging a plurality of pins 21 formed on the back surface of the mounting portion 9 at four corners.
- the bus bar 3 has a rod-shaped portion 23, at least a portion of which is inserted into the base body 4, and is processed into a flat plate shape as a portion to which electric wires or a mating bus bar (both not shown) are connected. It has a flat plate part 24.
- the rod-shaped portion 23 is, for example, formed in a cylindrical shape.
- the flat plate portion 24 is provided at both ends of the rod-shaped portion 23, and has a hole 25 into which a fastener (not shown) for fixing an electric wire is inserted.
- the load 2 is electrically connected to one flat plate part 24, and the inverter 5 is electrically connected to the other flat plate part 24.
- the material of the bus bar 3 is, for example, copper or aluminum.
- the terminal block 1 includes a magnetic member 28 for suppressing partial discharge caused by a surge voltage generated by driving the load 2.
- the magnetic member 28 is provided on the base body 4 so as to surround the bus bar 3 from the periphery.
- the magnetic member 28 is formed in a shape to which a plurality of bus bars 3 can be attached.
- the magnetic member 28 is, for example, a ferrite core.
- the magnetic member 28 has a hole 29 for each bus bar 3 into which the bus bar 3 is inserted.
- three holes 29 are provided, for example, and are arranged at equal intervals in the longitudinal direction of the magnetic member 28 (Y-axis direction in FIG. 3, etc.).
- the magnetic member 28 is provided so as to surround a portion of the rod-shaped portion 23 of the bus bar 3 .
- the hole 29 is formed to have a round cross section, for example.
- a plurality of holes 30 are formed in the magnetic member 28 for inserting positioning pins (not shown) of the mold when forming the terminal block 1 with a mold.
- the magnetic member 28 is formed by combining two parts. Specifically, the magnetic member 28 is attached to the bus bar 3 by sandwiching the bus bar 3 between the first part 33 and the second part 34. Note that the first part 33 and the second part 34 are obtained by vertically dividing the magnetic member 28 in half, and have the same shape.
- the stand main body 4 is a resin mold integrally formed with the bus bar 3 and the magnetic member 28.
- the bus bar 3 and the magnetic member 28 are set in a mold, and after setting, resin is poured into the mold and solidified, thereby producing an assembly of the bus bar 3, the base body 4, and the magnetic member 28. .
- the assembly in which the bus bar 3, the base body 4, and the magnetic member 28 are integrated is manufactured by resin molding.
- the stand main body 4 has an insulating portion 37 formed by resin entering between the bus bar 3 and the magnetic member 28. As shown in FIGS. The insulating portion 37 ensures electrical insulation between the bus bar 3 and the magnetic member 28.
- the diameter of the hole 29 is set larger than the diameter of the bus bar 3 (specifically, the rod-shaped portion 23). As a result, the insulating portion 37 is formed by the resin flowing into the gap created between the bus bar 3 and the magnetic member 28 during resin molding.
- the terminal block 1 includes a sealing part 39 that seals between the bus bar 3 and the base body 4.
- the sealing part 39 is, for example, an adhesive (adhesive tape).
- the sealing portion 39 is provided, for example, in an annular shape.
- the sealing portion 39 is provided, for example, between the bus bar 3 and the cylindrical portion 16. The sealing portion 39 ensures watertightness between the bus bar 3 and the stand main body 4 and adhesiveness for firmly fixing the bus bar 3 to the stand main body 4.
- the magnetic member 28 is disposed, for example, at the first portion 10 of the base body 4.
- the sealing portion 39 is arranged, for example, at the second portion 11 (cylindrical portion 16) of the stand main body 4.
- the magnetic member 28 and the sealing part 39 are arranged at opposite positions with respect to the mounting part 9 of the stand main body 4.
- the bus bar 3 (specifically, the rod-shaped portion 23) is surrounded by the magnetic member 28. Therefore, even if a surge voltage is generated by driving the load 2, the magnetic member 28 can absorb the noise current generated due to the surge voltage. In this way, partial discharge that may occur due to surge voltage can be suppressed to a low level by the magnetic shielding effect of the magnetic member 28. Therefore, it becomes possible to improve the surge resistance of the terminal block 1. Furthermore, by improving the surge resistance, it is also possible to make it difficult for insulation deterioration to occur in the winding of the load 2.
- a sealing portion 39 is provided between the bus bar 3 and the stand main body 4 to close the gap between them. Therefore, even if fluid or foreign matter flows out from the load 2, it is possible to dam them up by the sealing portion 39. Therefore, it is possible to prevent fluid and foreign matter flowing out of the load 2 from flowing out of the case. Further, since the sealing portion 39 is arranged at the second portion 11, it is possible to keep the sealing portion 39 as far away from the load 2 as possible. Therefore, it becomes possible to make it difficult for the fluid and foreign matter flowing out from the load 2 to reach the sealing part 39, and therefore it becomes possible to make it difficult for the fluid and foreign matter to leak out from the sealing part 39.
- the bus bar 3 is not plate-shaped (flat plate-shaped) but is formed in a shape having a rod-shaped portion 23. Therefore, the size of the bus bar 3 can be made smaller than, for example, when the entire bus bar is plate-shaped. Therefore, it is possible to reduce the size of the magnetic member 28 and the terminal block 1.
- the terminal block 1 includes one or more bus bars 3, a block main body 4, and a magnetic member 28.
- the load 2 is connected to one end 3a of both ends of the bus bar 3.
- the stand main body 4 supports the bus bar 3 and is attached to the attachment point 7.
- the magnetic member 28 is provided on the base body 4 so as to surround the bus bar 3 in order to suppress partial discharge caused by a surge voltage generated by driving the load 2 .
- the magnetic member 28 since the magnetic member 28 is arranged around the bus bar 3, it becomes possible for the magnetic member 28 to absorb noise current caused by a surge voltage when driving a load. Therefore, the magnetic member 28 can suppress the occurrence of partial discharge caused by surge voltage. Therefore, surge resistance can be improved.
- the magnetic member 28 is formed in a shape to which a plurality of bus bars 3 can be attached. According to this configuration, since a plurality of bus bars 3 are attached to one magnetic member 28, noise currents that may occur in each bus bar 3 can be canceled out by the magnetic member 28. Therefore, it further contributes to improving surge resistance.
- the magnetic member 28 has a hole 29 for each bus bar 3 into which the bus bar 3 is inserted. According to this configuration, it is easy to know in which hole 29 of the magnetic member 28 the bus bar 3 should be set.
- the stand main body 4 is a resin mold integrally formed with the bus bar 3 and the magnetic member 28. According to this configuration, the bus bar 3, the base body 4, and the magnetic member 28 can be configured as one integral part (assembly).
- the stand main body 4 has an insulating part 37 formed by resin entering between the bus bar 3 and the magnetic member 28. According to this configuration, insulation between the bus bar 3 and the magnetic member 28 can be ensured by the insulating portion 37.
- the terminal block 1 includes a sealing part 39 that seals between the bus bar 3 and the base body 4. According to this configuration, the gap between the bus bar 3 and the stand main body 4 is sealed by the sealing part 39. Therefore, it is possible to prevent fluid or foreign matter from entering through the gap between the bus bar 3 and the base body 4.
- the stand main body 4 has a mounting part 9 fixed to the mounting point 7 by a fastener 8, a first part 10 extending from the mounting part 9 toward the load 2, and a connection between the mounting part 9 and the load 2. and a second portion 11 extending in the opposite direction. According to this configuration, the base body 4 can be attached to the attachment destination 7 by fixing the attachment portion 9 to the attachment destination 7 with the fastener 8.
- the magnetic member 28 is arranged at the first portion 10. According to this configuration, even if the size of the second portion 11 is not sufficient due to the arrangement space of the terminal block 1 and the magnetic member 28 cannot be placed in the second portion 11, the magnetic member 28 cannot be placed in the first portion 10. This can be handled by providing the magnetic member 28.
- the sealing portion 39 is arranged in the second portion 11. According to this configuration, it is possible to arrange the sealing part 39 at a position away from the load 2, so it is possible to increase the distance between the load 2 and the sealing part 39. Therefore, fluid (for example, motor oil, etc.) flowing out from the load 2 and foreign matter are less likely to reach the sealing portion 39, which is more advantageous in preventing fluid and foreign matter from leaking from the sealing portion 39. .
- fluid for example, motor oil, etc.
- Three bus bars 3 are provided: U phase, V phase, and W phase.
- Three-phase alternating current signals whose phases differ by 120 degrees from each other are passed through the bus bar 3 .
- three-phase AC signals that are out of phase with each other by 120 degrees are passed through the three bus bars 3, so even if noise currents occur in the three bus bars 3, they cancel each other out and " 0”. Therefore, it further contributes to improving surge resistance.
- the bus bar 3 has a rod-shaped portion 23 and a flat plate portion 24. At least a portion of the rod-shaped portion 23 is inserted into the base body 4.
- the flat plate portions 24 are provided at both ends of the rod-shaped portion 23 and are processed into a flat plate shape as connection points.
- the magnetic member 28 is provided so as to surround the rod-shaped portion 23 from the periphery. According to this configuration, since a part of the bus bar 3 is made into a rod shape, the diameter of the bus bar 3 can be made smaller than, for example, when the entire bus bar is in a plate shape. Therefore, it contributes to reducing the size of the terminal block 1.
- the bus bar 3 and the base body 4 are an integral part 44 configured as one component.
- the integral part 44 is formed by insert molding of resin, for example.
- the integrated product 44 is formed by insert molding in which the bus bar 3 is set in a mold and filled with resin.
- the stand main body 4 is a resin mold.
- the integral part 44 may be formed by a method other than insert molding.
- the magnetic member 28 is formed to surround the integral piece 44 from the periphery.
- the magnetic member 28 is a band-shaped magnetic foil 45 wound around an integral part 44 a plurality of times. In this way, the magnetic member 28 is formed by wrapping the strip-shaped magnetic foil 45 around the integral piece 44.
- the magnetic foil 45 is, for example, wrapped around the outer surface of the first portion 10 of the base body 4.
- the wound magnetic foil 45 is formed into a substantially cylindrical shape.
- the substantially cylindrical magnetic foil 45 is formed into a flat elliptical shape when viewed from the axial direction.
- the material of the magnetic foil 45 for example, permalloy, nickel, supermalloy, iron, ferrite, or a combination of two or more of these is used.
- the terminal block 1 includes a cover 46 for protecting the magnetic foil 45.
- the cover 46 includes a cover body 47 that covers the magnetic foil 45 and a flange portion 48 that extends in a direction intersecting the cover body 47.
- the flange portion 48 is formed around the entire circumference of the opening 49 of the cover body 47.
- the flange portion 48 has a plurality of holes 50 through which the collar 13 passes.
- the elastic member 19 is arranged between the attachment point 7 and the flange portion 48.
- FIG. 10(a) when manufacturing the terminal block 1, three-phase bus bars 3 used for each of the U phase, V phase, and W phase are prepared.
- FIG. 10(b) an integrated product 44 in which the bus bars 3 and the base body 4 are integrated is manufactured by insert molding in which the bus bars 3 are set in a mold and filled with resin.
- the three bus bars 3 are electrically insulated by a resin base body 4 formed by insert molding.
- a strip-shaped magnetic foil 45 is wrapped around the outer surface of the integrated product 44 a plurality of times.
- the thickness, number of turns, material, and other combinations of the magnetic foil 45 are appropriately set depending on the required degree of noise absorption.
- an adhesive may be applied to the surface of the magnetic foil 45. In this case, since it becomes possible to fix the overlapping magnetic foils 45 to each other, unintended falling off of the magnetic foils 45 is suppressed.
- a cover 46 is attached to the integral piece 44 around which the magnetic foil 45 is wrapped.
- the cover 46 is attached so as to surround the magnetic foil 45 from the periphery.
- the terminal block 1 is assembled as described above.
- the bus bar 3 and the stand main body 4 are an integrated product 44 configured as one component.
- the magnetic member 28 (magnetic foil 45 in this example) is formed to surround the integral piece 44 from the periphery. According to this configuration, when the shape of the magnetic member 28 is such that it surrounds the bus bar 3, the inner diameter of the magnetic member 28 can be minimized, so the impedance of the magnetic member 28 is set large. becomes possible. Therefore, the noise removal performance of the magnetic member 28 can be improved.
- the magnetic member 28 is a strip-shaped magnetic foil 45 that is wound around the integral part 44 multiple times. According to this configuration, the magnetic member 28 can be formed by a simple method of winding the strip-shaped magnetic foil 45 around the integral piece 44.
- the stand main body 4 is an insulating resin 53 that insulates the bus bar 3.
- the bus bar 3 and the insulating resin 53 are formed, for example, by resin insert molding.
- the bus bar 3 and the insulating resin 53 are formed as an integral part 44 by, for example, insert molding in which the bus bar 3 is set in a mold and filled with resin.
- the insulating resin 53 is a resin mold.
- the magnetic member 28 is formed in a shape surrounding the insulating resin 53 and is a magnetic resin 55 containing magnetic powder 54 .
- the magnetic resin 55 is formed, for example, on the main part of the insulating resin 53, that is, on the outer surface of the first portion 10.
- the magnetic resin 55 is, for example, formed into a substantially cylindrical shape.
- the substantially cylindrical magnetic resin 55 is formed into a flat elliptical shape when viewed from the axial direction.
- As the material of the magnetic powder 54 for example, permalloy, nickel, supermalloy, iron, ferrite, or a combination of two or more of these is used.
- the insulating resin 53 and the magnetic resin 55 may be formed, for example, by insert molding or by other methods.
- FIG. 12(a) when manufacturing the terminal block 1, three-phase bus bars 3 used for each of the U phase, V phase, and W phase are prepared.
- FIG. 12(b) an integrated product 44 in which the bus bars 3 and the insulating resin 53 are integrated is manufactured by insert molding in which the bus bars 3 are set in a mold and filled with resin.
- the three bus bars 3 are electrically insulated by an insulating resin 53 formed by insert molding.
- a magnetic resin 55 is insert-molded into an integrated product 44 in which the bus bar 3 and the insulating resin 53 are integrated. Specifically, by setting the integrated product 44 in a mold and filling the mold with resin containing magnetic powder 54, an assembly in which the magnetic resin 55 is integrated is formed. As a result, an assembly in which the integral part 44 is surrounded by the magnetic resin 55 is manufactured.
- the stand main body 4 is an insulating resin 53 that insulates the bus bar 3.
- the magnetic member 28 is formed in a shape surrounding the insulating resin 53 and is a magnetic resin 55 containing magnetic powder 54 . According to this configuration, the assembly including the magnetic member 28 can be manufactured by a simple method such as resin insert molding.
- the bus bar 3 has an insulating layer 58 on its surface.
- the insulating layer 58 is, for example, an enamel film 59. It is preferable that the insulating layer 58 is formed on the entire surface of the bus bar 3, for example. Note that the insulating layer 58 is not limited to the enamel film 59, and for example, a tube such as a heat shrink tube, a resin tape, or the like may be used.
- the stand main body 4 is formed in a shape surrounding the bus bar 3 and is made of magnetic resin 61 containing magnetic powder 60 as the magnetic member 28. In this way, the stand body 4 of this example is made of magnetic resin 61 containing magnetic powder 60.
- the main portion of the magnetic resin 61 that is, the first portion 10, is formed in a flat elliptical shape when viewed from the axial direction of the bus bar 3.
- the material of the magnetic powder 60 for example, the same material as in the third embodiment is used.
- the magnetic resin 61 may be formed, for example, by insert molding or by other methods.
- FIG. 14A when manufacturing the terminal block 1, a three-phase (U-phase, V-phase, W-phase) bus bar 3 having an insulating layer 58 formed on its surface is prepared. As shown in FIG. 14(b), these bus bars 3 are set in a mold, and insert molding is performed to fill resin containing magnetic powder 60, thereby creating an assembly in which the bus bars 3 and magnetic resin 61 are integrated. Manufacture. The three bus bars 3 are electrically insulated from the magnetic resin 61 by an insulating layer 58 on the surface.
- the bus bar 3 has an insulating layer 58 on its surface.
- the stand main body 4 is formed in a shape surrounding the bus bar 3 and is made of magnetic resin 61 containing magnetic powder 60 as the magnetic member 28 . According to this configuration, since the stand main body 4 itself contains the magnetic powder 60, there is no need to attach the magnetic member 28, which is a separate member, to the stand main body 4. Therefore, the stand main body 4 can be downsized.
- the insulating layer 58 is an enamel film 59. According to this configuration, a general-purpose bus bar 3 whose surface is covered with an enamel film 59 can be used. (Other embodiments) Note that this embodiment can be implemented with the following modifications. This embodiment and the following modified examples can be implemented in combination with each other within a technically consistent range.
- the magnetic member 28 may be arranged, for example, at the second section 11 of the stand main body 4, instead of at the first section 10.
- the shape of the second portion 11 is made into a block shape, and the magnetic member 28 is arranged inside the second portion 11. According to this configuration, even if the size of the first portion 10 is not sufficient due to the arrangement space of the terminal block 1 and the magnetic member 28 cannot be placed in the first portion 10, the magnetic member 28 can be placed in the second portion 11. This can be handled by providing the magnetic member 28. Note that when the magnetic member 28 is disposed in the second portion 11, it is preferable to provide the sealing portion 39 in the first portion 10.
- the hole 29 into which the bus bar 3 is inserted may have a shape that can accommodate a plurality of bus bars 3 at once, for example. That is, the magnetic member 28 may have one hole 29 into which a plurality of bus bars 3 can be inserted all at once.
- the shape of the hole 29 may be, for example, a long hole shape when viewed from the axial direction of the hole 29. According to this configuration, a plurality of bus bars 3 can be inserted into the holes 29 of the magnetic member 28 at once, so it becomes easier to set the bus bars 3 in the holes 29.
- the magnetic member 28 can also be made into a one-piece structure instead of a divided structure.
- At least one of the plurality of bus bars 3 has a bent portion 41 formed in a region surrounded by the magnetic member 28 so as to approach the adjacent bus bar 3. It may have.
- bent portions 41 are provided in the middle of the bus bars 3 on both sides of the bus bar 3 in the center. According to this configuration, in the region surrounded by the magnetic member 28, it is possible to bring adjacent bus bars 3 as close to each other as possible by the bent portion 41. Therefore, it is possible to reduce the size of the magnetic member 28. This further contributes to miniaturization of the terminal block 1.
- the magnetic member 28 is not limited to a shape that covers the plurality of bus bars 3 all together.
- one magnetic member 28 may be provided for each bus bar 3.
- the magnetic member 28 is not limited to a ferrite core (made of ferrite), but may be a magnetic material such as a ferromagnetic material.
- the magnetic member 28 may be configured to consume or absorb noise currents in the busbar 3 in the vicinity of the busbar 3, for example as iron losses or similar losses.
- the number of bus bars 3 is not limited to three, but may be two or less, or four or more. - In each embodiment, when providing a plurality of bus bars 3, these bus bars 3 are not limited to all having the same shape, and at least one may have a different shape.
- the assembly of the bus bar 3, the base body 4, and the magnetic member 28 can be formed by a method other than resin molding.
- the magnetic member 28 may be manually attached to the assembly of the bus bar 3 and the base body 4.
- the assembly may be formed by a variety of construction methods.
- the rod-shaped portion 23 is not limited to a cylindrical shape, but may be a polygonal prism shape such as a quadrangular prism shape.
- the insulating part 37 is not limited to being a part of the resin part of the resin mold, and may be a dedicated component separate from the base body 4, for example.
- both the magnetic member 28 and the sealing part 39 may be provided in the first part 10 (or the second part 11).
- the sealing part 39 may be a seal ring (rubber ring).
- the terminal block 1 may have, for example, a shape that includes only the attachment portion 9, and the magnetic member 28 may be disposed in the attachment portion 9.
- the terminal block 1 may have a shape having only the first portion 10, and the first portion 10 may be fixed to the attachment point 7, for example. Note that this also applies to the second portion 11 as well.
- the signal sent to the bus bar 3 is not limited to a three-phase AC signal, and may be any other signal.
- the device connected to the other end 3b of the bus bar 3 is not limited to the inverter 5, and may be other devices such as a transformer.
- the load 2 is not limited to a motor, and may be a resistive load, a solenoid, a lamp, etc., for example.
- the terminal block 1 is not limited to in-vehicle use, and may be used in equipment and devices in other fields.
- the expression “at least one” used in this disclosure means “one or more” of the desired options.
- the expression “at least one” as used in this disclosure means “only one option” or “both of the two options” if the number of options is two.
- the expression “at least one” as used in this disclosure means “only one option” or “any combination of two or more options” if the number of options is three or more. do.
- the rod-shaped portion 23 of the bus bar 3 does not need to have a non-metallic insulating layer, which may be an enamel film, on its surface.
- the stand main body 4 in FIGS. 3 to 12 does not need to contain magnetic powder.
- the entire length of the rod-shaped portion 23 of the bus bar 3 that does not have a non-metallic insulating layer and the magnetic member 28 may be embedded in the base body 4.
- the magnetic member 28 (magnetic foil 45, magnetic resin 55) is embedded in the base body 4 that does not contain magnetic powder, of the rod-shaped portion 23 of the bus bar 3 that does not have a non-metallic insulating layer.
- the stand main body 4 may be attached to the outer surface of the stand main body 4 so as to surround the length portion. As shown in FIGS. 13 and 14, the insulating layer 58 and the rod-shaped portion 23 of the bus bar 3 may be embedded in the base body 4 containing magnetic powder 60 as the magnetic member 28. This stand main body 4 does not need to be in direct contact with the rod-shaped portion 23 of the bus bar 3, but may be in direct contact with the insulating layer 58.
- the flat plate portion 24 and rod-shaped portion 23 of the bus bar 3 in the illustrated embodiment may be referred to as a flat electrical connection end portion and a non-flat intermediate rod, respectively.
- the platform body 4 of the illustrated embodiment may be referred to as a busbar support block.
- a terminal block includes: multiple metal busbars, a busbar support block that fixedly supports the plurality of metal busbars; and a magnetic member for improving surge resistance of the terminal block,
- Each of the plurality of bus bars may include two flat electrical connection ends and a non-flat intermediate rod between the two flat electrical connection ends and having a rod length and a rod thickness. I can do it,
- the magnetic member may be fixed to the busbar support block at a position capable of surrounding at least a portion of the rod length of the non-flat intermediate rod of each busbar.
- the magnetic member can be positioned on the non-flat intermediate rod, which is likely to be affected by surge voltage, out of the entire length of each bus bar, so that the effect of surge voltage is reduced.
- This is advantageous in achieving both the reduction in the rod thickness (conductor cross-sectional area) of the non-flat intermediate rod of the bus bar.
- it is advantageous to reduce the margin of conductor cross-sectional area of the bus bar with respect to voltage.
- the entire magnetic member may be embedded in the busbar support block, and the magnetic member may not be visible from outside the busbar support block.
- the magnetic member may be a foil wrapped around the busbar support block, and the foil does not need to be embedded in the busbar support block, and the magnetic member may be a foil wrapped around the busbar support block.
- the device may be visible from the outside, and may be replaceable, for example.
- the magnetic member may be a cylinder that accommodates a part of the busbar support block, and the cylinder does not need to be embedded in the busbar support block, and the magnetic member may be a cylinder that accommodates a part of the busbar support block. It may be visible from the outside of the busbar support block and, for example, may be replaceable.
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Connections Arranged To Contact A Plurality Of Conductors (AREA)
- Motor Or Generator Frames (AREA)
Abstract
Description
[1]本開示の端子台は、両端の一端に負荷が接続される1つまたは複数のバスバーと、前記バスバーを支持するとともに、取付け先に取付けられる台本体と、前記負荷の駆動によって発生するサージ電圧に起因する部分放電を抑えるために、前記バスバーを周囲から囲むように前記台本体に設けられた磁性部材と、を備えた。
[12]上記[1]から[11]のいずれかにおいて、前記バスバーと前記台本体との間を封止する封止部を備える。この構成によれば、バスバーと台本体との間の隙間が封止部によって封止される。よって、バスバーと台本体との間の隙間から流体や異物が侵入してしまう状況を生じ難くすることが可能となる。
本開示の端子台1の具体例を、以下に図面を参照しつつ説明する。なお、本発明はこれらの例示に限定されるものではなく、特許請求の範囲によって示され、特許請求の範囲と均等の意味および範囲内でのすべての変更が含まれることが意図される。各図面では、説明の便宜上、構成の一部を誇張または簡略化して示す場合がある。また、各部分の寸法比率についても、実際とは異なる場合がある。
図1に示すように、端子台1は、両端の一端3aに負荷2が接続された1つまたは複数のバスバー3と、バスバー3を支持する台本体4と、を備える。負荷2は、例えば、モータであって、本例の場合、三相交流モータである。バスバー3は、例えば、U相、V相、およびW相の3本設けられている。バスバー3には、位相が互いに120度異なる三相交流の信号が流される。バスバー3の他端3bは、負荷2に供給する電力の周波数を制御するインバータ5に接続される。バスバー3には、三相交流モータに必要な高電圧および大電流が流される。
図2に示すように、端子台1は、台本体4と取付部9との間をシールする弾性部材19を有する。弾性部材19は、例えば、環状をなす。弾性部材19は、例えば、ゴムパッキンであって、アクリル材やシリコン材などが使用される。弾性部材19は、台本体4(第1部位10)を通すための孔20を有する。弾性部材19は、例えば、取付部9の裏面に形成された複数のピン21を4角に係合することによって、取付部9に固定されている。
図3および図4に示すように、バスバー3は、少なくとも一部が台本体4に挿し込まれる棒状部23と、電線または相手バスバー(ともに図示略)などが接続される箇所として平板状に加工された平板部24と、を有する。棒状部23は、例えば、円柱状に形成されている。平板部24は、棒状部23の両端に設けられるとともに、電線を固定する留め具(図示略)を挿し込むための孔25が形成されている。本例の場合、一方の平板部24に負荷2が電気接続され、他方の平板部24にインバータ5が電気接続される。バスバー3の素材は、例えば、銅やアルミニウムである。
図3および図4に示す通り、端子台1は、負荷2の駆動によって発生するサージ電圧に起因する部分放電を抑えるための磁性部材28を備える。磁性部材28は、バスバー3を周囲から囲むように台本体4に設けられている。磁性部材28は、複数のバスバー3を取付け可能な形状に形成されている。磁性部材28は、例えば、フェライトコアである。
図3および図4に示す通り、台本体4は、バスバー3および磁性部材28の間に樹脂が入り込むことにより形成された絶縁部37を有する。絶縁部37は、バスバー3と磁性部材28との間の電気的な絶縁を確保する。本例の場合、孔29の径をバスバー3(具体的には、棒状部23)の径よりも大きく設定する。これにより、樹脂モールド成形時において、バスバー3と磁性部材28との間に生じる隙間に流れ込んだ樹脂により、絶縁部37が形成される。
図5に示す通り、端子台1は、バスバー3と台本体4との間を封止する封止部39を備える。封止部39は、例えば、接着剤(接着テープ)である。封止部39は、例えば、環状に設けられている。封止部39は、例えば、バスバー3と筒部16との間に設けられている。封止部39は、バスバー3と台本体4との間の止水性と、バスバー3を台本体4にしっかりと固定する密着性と、を確保する。
図3および図4に示す通り、磁性部材28は、例えば、台本体4の第1部位10に配置されている。封止部39は、例えば、台本体4の第2部位11(筒部16)に配置されている。このように、本例の場合、磁性部材28および封止部39は、台本体4の取付部9を基準にして、互いに反対の位置に配置されている。
次に、本実施形態の端子台1の作用について説明する。
図7に示すように、本例の場合、磁性部材28でバスバー3(具体的には、棒状部23)を囲む構造とした。このため、負荷2の駆動によってサージ電圧が発生しても、サージ電圧に起因して発生するノイズ電流を、磁性部材28によって吸収することが可能となる。このように、サージ電圧に起因して発生し得る部分放電を、磁性部材28の磁気シールド効果によって低く抑えることが可能となる。よって、端子台1の耐サージ性を向上することが可能となる。ひいては、耐サージ性の向上によって、負荷2の巻線に絶縁劣化を生じ難くすることも可能となる。
上記実施形態の端子台1によれば、以下のような効果を得ることができる。
(1.1)端子台1は、1つまたは複数のバスバー3、台本体4、および磁性部材28を備える。バスバー3は、両端の一端3aに負荷2が接続される。台本体4は、バスバー3を支持するとともに、取付け先7に取付けられる。磁性部材28は、負荷2の駆動によって発生するサージ電圧に起因する部分放電を抑えるために、バスバー3を周囲から囲むように台本体4に設けられる。
次に、第2実施形態を説明する。なお、第2実施形態は、第1実施形態の磁性部材28を別の部品に変更した実施例である。よって、第1実施形態と同一部分には同じ符号を付して説明を省略し、異なる部分についてのみ詳述する。
図8に示すように、バスバー3および台本体4は、1つの部品として構成された一体品44である。本例の場合、一体品44は、例えば、樹脂のインサート成型によって形成されている。具体的には、一体品44は、バスバー3を金型にセットして樹脂を充填するインサート成型によって形成されている。本例の場合、台本体4は、樹脂モールドである。なお、一体品44は、インサート成型以外の方法で形成されてもよい。
次に、本実施形態の端子台1の作用について説明する。
図10(a)に示すように、端子台1を製造する場合、U相、V相、およびW相の各々に用いられる三相のバスバー3を用意する。図10(b)に示すように、これらバスバー3を金型にセットして樹脂を充填するインサート成型により、バスバー3と台本体4とが一体化された一体品44を製造する。3本のバスバー3は、インサート成型によって形成された樹脂製の台本体4によって電気的に絶縁されている。
上記実施形態の端子台1によれば、上記実施形態に記載した効果の他に、以下のような効果を得ることができる。
次に、第3実施形態を説明する。なお、第3実施形態も、第1実施形態および第2実施形態と異なる部分についてのみ詳述する。
図11に示すように、台本体4は、バスバー3を絶縁する絶縁樹脂53である。バスバー3および絶縁樹脂53は、例えば、樹脂のインサート成型によって形成されている。具体的には、バスバー3および絶縁樹脂53は、例えば、バスバー3を金型にセットして樹脂を充填するインサート成型により、一体品44として形成されている。本例の場合、絶縁樹脂53は、樹脂モールドである。
次に、本実施形態の端子台1の作用について説明する。
図12(a)に示すように、端子台1を製造する場合、U相、V相、およびW相の各々に用いられる三相のバスバー3を用意する。図12(b)に示すように、これらバスバー3を金型にセットして樹脂を充填するインサート成型により、バスバー3と絶縁樹脂53とが一体化された一体品44を製造する。3本のバスバー3は、インサート成型によって形成された絶縁樹脂53によって電気的に絶縁されている。
上記実施形態の端子台1によれば、上記実施形態に記載した効果の他に、以下のような効果を得ることができる。
次に、第4実施形態を説明する。なお、第4実施形態も、第1実施形態~第3実施形態と異なる部分についてのみ詳述する。
図13に示すように、バスバー3は、表面に絶縁層58を有する。絶縁層58は、例えば、エナメル膜59である。絶縁層58は、例えば、バスバー3の表面全体に形成されることが好ましい。なお、絶縁層58は、エナメル膜59に限らず、例えば、熱収縮チューブ等のチューブや、樹脂製のテープなどを使用してもよい。
次に、本実施形態の端子台1の作用について説明する。
図14(a)に示すように、端子台1を製造する場合、表面に絶縁層58が形成された三相(U相、V相、W相)のバスバー3を用意する。図14(b)に示すように、これらバスバー3を金型にセットし、そして、磁性粉60が含有された樹脂を充填するインサート成型により、バスバー3と磁性樹脂61とが一体化されたアセンブリを製造する。3本のバスバー3は、表面の絶縁層58によって磁性樹脂61とは電気的に絶縁されている。
上記実施形態の端子台1によれば、上記実施形態に記載した効果の他に、以下のような効果を得ることができる。
(他の実施形態)
なお、本実施形態は、以下のように変更して実施することができる。本実施形態および以下の変更例は、技術的に矛盾しない範囲で互いに組み合わせて実施することができる。
・各実施形態において、磁性部材28は、フェライトコア(フェライト製)に限定されず、強磁性体などの磁性体であってよい。磁性部材28は、バスバー3におけるノイズ電流を、例えば鉄損または類似の損失として、バスバー3の近傍で消費または吸収するように構成されてよい。
・各実施形態において、バスバー3を複数設ける場合、これらバスバー3は、全て同一の形状に限定されず、少なくとも1つを異なる形状としてもよい。
・各実施形態において、絶縁部37は、樹脂モールドの一部の樹脂部分であることに限定されず、例えば、台本体4とは別体の専用部品でもよい。
・各実施形態において、封止部39は、シールリング(ゴムリング)でもよい。
・各実施形態において、端子台1は、例えば、第1部位10のみを有する形状をしており、そして、この第1部位10が取付け先7に固定される構成でもよい。なお、これは、第2部位11でも同様に言える。
・各実施形態において、バスバー3の他端3bに接続される機器は、インバータ5に限定されず、例えば、変圧器などの他の機器でもよい。
・各実施形態において、端子台1は、車載用に限定されず、他の分野の機器や装置に使用されてもよい。
複数の金属バスバーと、
前記複数の金属バスバーを固定的に支持するバスバー支持ブロックと、
前記端子台の耐サージ性を向上するための磁性部材とを備えることができ、
前記複数のバスバーの各々は、2つの平板状電気接続端部と、前記2つの平板状電気接続端部の間の、ロッド長さとロッド太さとを有する非平板状の中間ロッドとを含むことができ、
前記磁性部材は、各バスバーの前記非平板状の中間ロッドの前記ロッド長さの少なくとも一部を囲むことのできる位置において、前記バスバー支持ブロックに固定されてよい。
2 負荷
3 バスバー
3a 一端
3b 他端
4 台本体
5 インバータ
7 取付け先
8 留め具
9 取付部
10 第1部位
11 第2部位
12 孔
13 カラー
14 凹部
15 凹部
16 筒部
17 壁
18 孔
19 弾性部材
20 孔
21 ピン
23 棒状部
24 平板部
25 孔
28 磁性部材
29 孔
30 孔
33 第1パーツ
34 第2パーツ
37 絶縁部
39 封止部
41 屈曲部
44 一体品
45 磁性箔
46 カバー
47 カバー本体
48 フランジ部
49 開口
50 孔
53 絶縁樹脂
54 磁性粉
55 磁性樹脂
58 絶縁層
59 エナメル膜
60 磁性粉
61 磁性樹脂
Claims (19)
- 両端の一端に負荷が接続される1つまたは複数のバスバーと、
前記バスバーを支持するとともに、取付け先に取付けられる台本体と、
前記負荷の駆動によって発生するサージ電圧に起因する部分放電を抑えるために、前記バスバーを周囲から囲むように前記台本体に設けられた磁性部材と
を備えた端子台。 - 前記磁性部材は、前記複数のバスバーを取付け可能な形状に形成されている
請求項1に記載の端子台。 - 前記磁性部材は、前記バスバーを挿し込むための孔を前記バスバーごとに有する
請求項2に記載の端子台。 - 前記磁性部材は、前記複数のバスバーをまとめて挿し込み可能な1つの孔を有する
請求項2に記載の端子台。 - 前記台本体は、前記バスバーおよび前記磁性部材と一体に形成された樹脂モールドである
請求項1から請求項4のいずれか一項に記載の端子台。 - 前記台本体は、前記バスバーおよび前記磁性部材の間に樹脂が入り込むことにより形成された絶縁部を有する
請求項5に記載の端子台。 - 前記バスバーおよび前記台本体は、1つの部品として構成された一体品であり、
前記磁性部材は、前記一体品を周囲から囲むように形成されている
請求項1に記載の端子台。 - 前記磁性部材は、前記一体品の周囲に複数周巻かれた帯状の磁性箔である
請求項7に記載の端子台。 - 前記台本体は、前記バスバーを絶縁する絶縁樹脂であり、
前記磁性部材は、前記絶縁樹脂を囲む形状に形成されるとともに、磁性粉を含有した磁性樹脂である
請求項7に記載の端子台。 - 前記バスバーは、表面に絶縁層を有し、
前記台本体は、前記バスバーを囲む形状に形成されるとともに、前記磁性部材としての磁性粉が含有された磁性樹脂である
請求項1に記載の端子台。 - 前記絶縁層は、エナメル膜である
請求項10に記載の端子台。 - 前記バスバーと前記台本体との間を封止する封止部を備える
請求項1から請求項11のいずれか一項に記載の端子台。 - 前記台本体は、
前記取付け先に対して留め具によって固定される取付部と、
前記取付部から前記負荷に向かって延びる第1部位と、
前記取付部から前記負荷とは反対の方向に延びる第2部位と、を有する
請求項1から請求項12のいずれか一項に記載の端子台。 - 前記磁性部材は、前記第1部位に配置されている
請求項13に記載の端子台。 - 前記磁性部材は、前記第2部位に配置されている
請求項13に記載の端子台。 - 前記バスバーと前記台本体との間を封止する封止部を備え、
前記封止部は、前記第2部位に配置されている
請求項13に記載の端子台。 - 前記バスバーは、U相、V相、およびW相の3本設けられ、
前記バスバーには、位相が互いに120度異なる三相交流の信号が流される
請求項1から請求項16のいずれか一項に記載の端子台。 - 前記バスバーは、
少なくとも一部が前記台本体に挿し込まれる棒状部と、
前記棒状部の両端に設けられ、接続箇所として平板状に加工された平板部と、を有し、
前記磁性部材は、前記棒状部を周囲から囲むように設けられている
請求項1から請求項17のいずれか一項に記載の端子台。 - 前記複数のバスバーの少なくとも1本は、前記磁性部材に囲まれた部位において、隣に位置する前記バスバーに近づくように曲げ形成された屈曲部を有する
請求項1から請求項18のいずれか一項に記載の端子台。
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US18/997,802 US20260081370A1 (en) | 2022-08-01 | 2023-07-18 | Terminal block |
| CN202380053802.6A CN119731886A (zh) | 2022-08-01 | 2023-07-18 | 端子座 |
Applications Claiming Priority (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2022-122714 | 2022-08-01 | ||
| JP2022122714 | 2022-08-01 | ||
| JP2023061622A JP2024020126A (ja) | 2022-08-01 | 2023-04-05 | 端子台 |
| JP2023-061622 | 2023-04-05 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2024029319A1 true WO2024029319A1 (ja) | 2024-02-08 |
Family
ID=89848768
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/JP2023/026179 Ceased WO2024029319A1 (ja) | 2022-08-01 | 2023-07-18 | 端子台 |
Country Status (3)
| Country | Link |
|---|---|
| US (1) | US20260081370A1 (ja) |
| CN (1) | CN119731886A (ja) |
| WO (1) | WO2024029319A1 (ja) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP4503338A1 (de) * | 2023-08-04 | 2025-02-05 | Robert Bosch GmbH | Anschlussvorrichtung für eine elektrische maschine, elektrische maschine und verfahren zum herstellen einer anschlussvorrichtung für eine elektrische maschine |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008004508A (ja) * | 2006-06-26 | 2008-01-10 | Fuji Electric Holdings Co Ltd | 端子台 |
| JP2008124259A (ja) * | 2006-11-13 | 2008-05-29 | Kitagawa Ind Co Ltd | 電磁波シールド筐体 |
| JP2015230947A (ja) * | 2014-06-04 | 2015-12-21 | 本田技研工業株式会社 | バスバー保持構造 |
| JP2019176614A (ja) * | 2018-03-28 | 2019-10-10 | 日本電産テクノモータ株式会社 | モータ |
| JP2020161233A (ja) * | 2019-03-25 | 2020-10-01 | 矢崎総業株式会社 | コネクタ |
| KR20220061393A (ko) * | 2020-11-06 | 2022-05-13 | 엘에스일렉트릭(주) | 페라이트 코어 모듈 및 이를 포함하는 버스바 구조체 |
| WO2022138014A1 (ja) * | 2020-12-21 | 2022-06-30 | 株式会社オートネットワーク技術研究所 | 端子台 |
-
2023
- 2023-07-18 CN CN202380053802.6A patent/CN119731886A/zh active Pending
- 2023-07-18 US US18/997,802 patent/US20260081370A1/en active Pending
- 2023-07-18 WO PCT/JP2023/026179 patent/WO2024029319A1/ja not_active Ceased
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008004508A (ja) * | 2006-06-26 | 2008-01-10 | Fuji Electric Holdings Co Ltd | 端子台 |
| JP2008124259A (ja) * | 2006-11-13 | 2008-05-29 | Kitagawa Ind Co Ltd | 電磁波シールド筐体 |
| JP2015230947A (ja) * | 2014-06-04 | 2015-12-21 | 本田技研工業株式会社 | バスバー保持構造 |
| JP2019176614A (ja) * | 2018-03-28 | 2019-10-10 | 日本電産テクノモータ株式会社 | モータ |
| JP2020161233A (ja) * | 2019-03-25 | 2020-10-01 | 矢崎総業株式会社 | コネクタ |
| KR20220061393A (ko) * | 2020-11-06 | 2022-05-13 | 엘에스일렉트릭(주) | 페라이트 코어 모듈 및 이를 포함하는 버스바 구조체 |
| WO2022138014A1 (ja) * | 2020-12-21 | 2022-06-30 | 株式会社オートネットワーク技術研究所 | 端子台 |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP4503338A1 (de) * | 2023-08-04 | 2025-02-05 | Robert Bosch GmbH | Anschlussvorrichtung für eine elektrische maschine, elektrische maschine und verfahren zum herstellen einer anschlussvorrichtung für eine elektrische maschine |
Also Published As
| Publication number | Publication date |
|---|---|
| US20260081370A1 (en) | 2026-03-19 |
| CN119731886A (zh) | 2025-03-28 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP7708531B2 (ja) | バスバー巻線チョーク | |
| US9136748B2 (en) | Variable reluctance resolver | |
| US9783136B2 (en) | Wire harness | |
| US10283255B2 (en) | Reactor | |
| JP7004766B2 (ja) | 絶縁装置を備える圧縮機の駆動装置 | |
| CN111953110A (zh) | 封装式超高压绝缘系统 | |
| US20160006313A1 (en) | Stator for rotary electric machine | |
| JPH04348508A (ja) | 静止誘導電気機器 | |
| US10176906B2 (en) | Shielded conductive path | |
| US10361024B2 (en) | Dry-type transformer core | |
| JP6527586B2 (ja) | 低巻線間静電容量コイルフォーム | |
| WO2024029319A1 (ja) | 端子台 | |
| JP2009064941A (ja) | 三相乾式変圧器 | |
| JP2024020126A (ja) | 端子台 | |
| JP2019204781A (ja) | 固体絶縁母線、及び固体絶縁母線の製造方法 | |
| JP6631389B2 (ja) | ノイズフィルタ付き導電路 | |
| JP5850355B1 (ja) | ノイズフィルタ付き導電路 | |
| KR101254664B1 (ko) | 가스절연개폐장치와 유입변압기의 접속구조 | |
| CN113488321B (zh) | 干式变压器及其绕制方法 | |
| JP3929222B2 (ja) | 計器用変成器 | |
| JP5228071B2 (ja) | モールド変圧器 | |
| JP2004319617A (ja) | 電磁装置、高電圧パルス発生器および高輝度放電灯点灯装置 | |
| JP2020028177A (ja) | 配線部品 | |
| JP2009254172A (ja) | ステータおよびその組立方法 | |
| JP2017108102A (ja) | 静止誘導機器 |
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: 23848133 Country of ref document: EP Kind code of ref document: A1 |
|
| WWE | Wipo information: entry into national phase |
Ref document number: 202380053802.6 Country of ref document: CN |
|
| NENP | Non-entry into the national phase |
Ref country code: DE |
|
| WWP | Wipo information: published in national office |
Ref document number: 202380053802.6 Country of ref document: CN |
|
| 122 | Ep: pct application non-entry in european phase |
Ref document number: 23848133 Country of ref document: EP Kind code of ref document: A1 |