WO2015020176A1 - Connection terminal, power module, and energization unit - Google Patents
Connection terminal, power module, and energization unit Download PDFInfo
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- WO2015020176A1 WO2015020176A1 PCT/JP2014/070951 JP2014070951W WO2015020176A1 WO 2015020176 A1 WO2015020176 A1 WO 2015020176A1 JP 2014070951 W JP2014070951 W JP 2014070951W WO 2015020176 A1 WO2015020176 A1 WO 2015020176A1
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- connection terminal
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- 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
- H01R13/02—Contact members
- H01R13/22—Contacts for co-operating by abutting
- H01R13/24—Contacts for co-operating by abutting resilient; resiliently-mounted
- H01R13/2407—Contacts for co-operating by abutting resilient; resiliently-mounted characterized by the resilient means
- H01R13/2428—Contacts for co-operating by abutting resilient; resiliently-mounted characterized by the resilient means using meander springs
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- G—PHYSICS
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- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R1/00—Details of instruments or arrangements of the types included in groups G01R5/00 - G01R13/00 and G01R31/00
- G01R1/02—General constructional details
- G01R1/06—Measuring leads; Measuring probes
- G01R1/067—Measuring probes
- G01R1/06711—Probe needles; Cantilever beams; "Bump" contacts; Replaceable probe pins
- G01R1/06716—Elastic
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- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
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- G01R1/02—General constructional details
- G01R1/06—Measuring leads; Measuring probes
- G01R1/067—Measuring probes
- G01R1/073—Multiple probes
- G01R1/07307—Multiple probes with individual probe elements, e.g. needles, cantilever beams or bump contacts, fixed in relation to each other, e.g. bed of nails fixture or probe card
- G01R1/07357—Multiple probes with individual probe elements, e.g. needles, cantilever beams or bump contacts, fixed in relation to each other, e.g. bed of nails fixture or probe card with flexible bodies, e.g. buckling beams
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- H01L23/48—Arrangements for conducting electric current to or from the solid state body in operation, e.g. leads, terminal arrangements ; Selection of materials therefor
- H01L23/488—Arrangements for conducting electric current to or from the solid state body in operation, e.g. leads, terminal arrangements ; Selection of materials therefor consisting of soldered or bonded constructions
- H01L23/498—Leads, i.e. metallisations or lead-frames on insulating substrates, e.g. chip carriers
- H01L23/49811—Additional leads joined to the metallisation on the insulating substrate, e.g. pins, bumps, wires, flat leads
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- H01L2224/48137—Connecting between different semiconductor or solid-state bodies, i.e. chip-to-chip the bodies being arranged next to each other, e.g. on a common substrate
- H01L2224/48139—Connecting between different semiconductor or solid-state bodies, i.e. chip-to-chip the bodies being arranged next to each other, e.g. on a common substrate with an intermediate bond, e.g. continuous wire daisy chain
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- H01L2224/48227—Connecting between a semiconductor or solid-state body and an item not being a semiconductor or solid-state body, e.g. chip-to-substrate, chip-to-passive the body and the item being stacked the item being non-metallic, e.g. insulating substrate with or without metallisation connecting the wire to a bond pad of the item
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- H01L2224/854—Material with a principal constituent of the material being a metal or a metalloid, e.g. boron (B), silicon (Si), germanium (Ge), arsenic (As), antimony (Sb), tellurium (Te) and polonium (Po), and alloys thereof
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Definitions
- the present invention relates to a power module, an energization unit, and a connection terminal used in the power module or the energization unit.
- the power module includes a substrate on which a plurality of semiconductor chips are stacked, a plurality of connection terminals that are connected to the respective semiconductors of the substrate to input and output power, and a connection terminal holder that holds the connection terminals.
- connection terminals reliable electrical continuity between the external circuit board and the power module board is required.
- connection terminals that ensure electrical continuity by contacting only the spring load between the external circuit board and the power module board. ing.
- connection terminal that can electrically connect between an external circuit board and a power module board by elastic force using a plate-like contact spring is disclosed (for example, (See Patent Documents 1 and 2).
- the contact spring By using the contact spring, it is possible to absorb fluctuations in the distance between conductors due to variations in distance between conductors, temperature changes, substrate warpage, etc., and maintain the contact state between the two contact objects. Thereby, while satisfy
- the power module described above operates at a high frequency (for example, the operating frequency is several kHz to several MHz).
- the operating frequency is several kHz to several MHz.
- inductance occurs at the connection terminal. If the inductance generated at the connection terminal is large, the surge voltage increases and the voltage loss increases, causing problems such as destruction of the power element and switching delay. Since these problems become more prominent during high-frequency operation, it is desired to reduce the inductance generated when a current is passed through the connection terminal.
- Patent Document 2 discloses that self-inductance can be minimized by making a mirror image relationship centered on an intermediate point of a connection terminal.
- connection terminals disclosed in Patent Documents 1 and 2 are regions in which the tip portions contacting the circuit board and the power module substrate each include an elastic portion of the connection terminal and extend from the elastic portion in the longitudinal direction of the connection terminal. It is arranged in a region that is outside the range. For this reason, when vibration occurs in either the circuit board or the power module board, a displacement of the contact position or the like occurs. In this case, the contact area changes, the contact area between the connection terminal and the substrate, the load applied to the substrate by the contact terminal, etc., and as a result, the contact resistance changes and the electrical continuity may become unstable. was there.
- the present invention has been made in view of the above, and provides a connection terminal, a power module, and an energization unit capable of maintaining low inductance and realizing reliable and favorable conduction between contact objects. Objective.
- connection terminal is a power module connection terminal for electrically connecting two contact objects, and an electrode provided on the substrate.
- the first contact portion that comes into contact, the second contact portion that comes into contact with the electrode provided in the external circuit, and the first and second contact portions at both ends are connected to each other, and has a uniform width,
- a connecting portion that extends in a zigzag shape in which the concave and convex portions have opposite curved portions and is extendable along the extending direction, and includes a first portion in a region extending in the zigzag extending direction including the connecting portion.
- the first and second contact portions are included.
- the surface of the second contact portion that contacts an electrode provided in the external circuit has an arc shape.
- connection terminal according to the present invention is characterized in that, in the above-described invention, the connection terminal is formed using a strip-shaped member having a uniform plate thickness.
- connection portion connects a plurality of extending portions extending in a substantially plate shape and two adjacent extending portions of the plurality of extending portions.
- a curved portion having a curved shape, and a main surface of the extending portion is substantially orthogonal to the extending direction.
- connection terminal according to the present invention, the straight line passing through the center of the extending portion further passes through the first and second contact portions in the above invention.
- the first contact portion has a substantially band shape, and is inserted into an insertion portion that is inserted in sliding contact with an inner wall surface of a holding hole provided in the substrate. And a flange portion having a length in the width direction perpendicular to the direction larger than the diameter of the holding hole.
- connection terminal according to the present invention is characterized in that in the above invention, a flat plate portion extending in a flat plate shape from the first contact portion is further provided.
- the power module according to the present invention includes a semiconductor element, a substrate on which the semiconductor element is mounted, a first contact portion that contacts an electrode provided on the substrate, and an electrode provided on the external circuit.
- a second contact portion that is connected to the first and second contact portions at both ends, and has a uniform width and extends in a zigzag shape in which curved portions having opposite concavities and convexities are repeated.
- a connecting portion that is extendable and contracted along the region, and includes the first and second contact portions in a region that extends in the zigzag shape including the connecting portion, and includes the external circuit and the substrate.
- a plurality of power module connection terminals that are always electrically connected, and of the plurality of power module connection terminals, the power modules are arranged side by side in the width direction of the connection portions of the power module connection terminals.
- Connection terminal module when viewed connecting adjacent power module terminal from the width direction, characterized in that the zigzag pattern of the connecting portions are opposite.
- the energization unit electrically connects the inspection target and the control unit that outputs the power supply and inspection signals, and supplies the power supply signal or the inspection signal.
- the inspection object and the housing are defined when a predetermined load is applied from the inspection object It is a non-contact state.
- FIG. 1 is a perspective view showing a configuration of a power module according to Embodiment 1 of the present invention.
- FIG. 2 is an exploded perspective view showing the configuration of the power module shown in FIG.
- FIG. 3 is a cross-sectional perspective view showing a configuration of a main part of the power module shown in FIG.
- FIG. 4 is a cross-sectional view showing the configuration of the power module shown in FIG.
- FIG. 5 is a perspective view showing connection terminals of the power module according to the first exemplary embodiment of the present invention.
- FIG. 6 is a side view showing the connection terminals of the power module according to the first embodiment of the present invention.
- FIG. 7 is a graph showing the relationship between the length and effective inductance of the connection terminal of the power module according to the first embodiment of the present invention.
- FIG. 8 is a graph showing the relationship between the distance and the effective inductance at the connection terminal of the power module according to the first embodiment of the present invention.
- FIG. 9 is a perspective view for explaining an example of the arrangement of the connection terminals of the power module according to the first embodiment of the present invention.
- FIG. 10 is a side view in the direction of arrow A1 in FIG.
- FIG. 11 is a perspective view which shows the connection terminal of the power module concerning the modification 1 of Embodiment 1 of this invention.
- FIG. 12 is a schematic diagram in the direction of arrow A2 in FIG.
- FIG. 13 is a perspective view which shows the connection terminal of the power module concerning the modification 2 of Embodiment 1 of this invention.
- FIG. 14 is a schematic diagram in the direction of arrow A3 in FIG.
- FIG. 15 is a perspective view which shows the connection terminal of the power module concerning the modification 3 of Embodiment 1 of this invention.
- 16 is a schematic diagram in the direction of arrow A4 in FIG.
- FIG. 17 is a perspective view which shows the connection terminal of the power module concerning the modification 4 of Embodiment 1 of this invention.
- 18 is a side view in the direction of the arrow A5 in FIG.
- FIG. 19 is a perspective view showing connection terminals of the power module according to the fifth modification of the first embodiment of the present invention.
- FIG. 20 is a side view showing the connection terminals of the power module according to the fifth modification of the first embodiment of the present invention.
- FIG. 21 is a perspective view showing a connection terminal of the power module according to the sixth modification of the first embodiment of the present invention.
- FIG. 22 is a side view showing the connection terminals of the power module according to the sixth modification of the first embodiment of the present invention.
- FIG. 23 is a perspective view showing the connection terminals of the power module according to the modified example 7 of the first embodiment of the present invention.
- FIG. 24 is a side view showing the connection terminals of the power module according to Modification 7 of Embodiment 1 of the present invention.
- FIG. 25 is a perspective view showing connection terminals of the power module according to the eighth modification of the first embodiment of the present invention.
- FIG. 26 is a perspective view showing connection terminals of the power module according to the ninth modification of the first embodiment of the present invention.
- FIG. 27 is an exploded perspective view showing the connection terminals of the power module according to Modification 10 of Embodiment 1 of the present invention.
- FIG. 28 is a perspective view showing the connection terminals of the power module according to the eleventh modification of the first embodiment of the present invention.
- FIG. 29 is an exploded perspective view showing a connection terminal of the power module according to the modified example 12 of the first embodiment of the present invention.
- FIG. 30 is a perspective view showing connection terminals of the power module according to the modification 13 of the first embodiment of the present invention.
- FIG. 31 is an exploded perspective view showing the connection terminals of the power module according to the modification 14 of the first embodiment of the present invention.
- FIG. 32 is an exploded perspective view showing the configuration of the power module according to the second embodiment of the present invention.
- FIG. 33 is an exploded perspective view showing a configuration of a main part of the power module according to the second embodiment of the present invention.
- FIG. 29 is an exploded perspective view showing a connection terminal of the power module according to the modified example 12 of the first embodiment of the present invention.
- FIG. 30 is a perspective view showing connection terminals of the power module according to the modification 13 of
- FIG. 34 is a perspective view illustrating a configuration of a main part of the power module according to the second embodiment of the present invention.
- FIG. 35 is a perspective view showing a connection terminal of the power module according to the second embodiment of the present invention.
- FIG. 36 is a side view showing the connection terminals of the power module according to the second embodiment of the present invention.
- FIG. 37 is a perspective view showing the configuration of the main part of the connection terminal of the power module according to the modification of the second embodiment of the present invention.
- FIG. 38 is an exploded perspective view showing the configuration of the main part of the power module according to the third embodiment of the present invention.
- FIG. 39 is an exploded perspective view showing the configuration of the main part of the power module according to the third embodiment of the present invention.
- FIG. 40 is a perspective view illustrating a configuration of a main part of the power module according to the third embodiment of the present invention.
- FIG. 41 is a perspective view showing a connection terminal of the power module according to the third embodiment of the present invention.
- FIG. 42 is a side view showing the connection terminals of the power module according to the third embodiment of the present invention.
- FIG. 43 is an exploded perspective view showing the configuration of the main part of the power module according to the first modification of the third embodiment of the present invention.
- FIG. 44 is a perspective view illustrating a configuration of a main part of a power module according to the second modification of the third embodiment of the present invention.
- FIG. 45 is a top view showing a schematic configuration of the inspection system according to the fourth embodiment of the present invention.
- FIG. 41 is a perspective view showing a connection terminal of the power module according to the third embodiment of the present invention.
- FIG. 42 is a side view showing the connection terminals of the power module according to the third embodiment of the present invention.
- FIG. 46 is a side view showing a schematic configuration of the inspection system according to the fourth embodiment of the present invention.
- FIG. 47 is a partial cross-sectional view showing a schematic configuration of the inspection system according to the fourth embodiment of the present invention.
- FIG. 48 is a perspective view showing a schematic configuration of a current supply unit according to the fourth embodiment of the present invention.
- FIG. 49 is a perspective view showing the configuration of the main part of the current supply unit according to the fourth embodiment of the present invention.
- FIG. 50 is a cross-sectional view showing a schematic configuration of the current supply unit according to the fourth embodiment of the present invention.
- FIG. 51 is a diagram for explaining a case where a load is applied to the connection terminal of the current supply unit according to the fourth embodiment of the present invention.
- FIG. 51 is a diagram for explaining a case where a load is applied to the connection terminal of the current supply unit according to the fourth embodiment of the present invention.
- FIG. 52 is a perspective view showing the configuration of the main part of the current supply unit according to the first modification of the fourth embodiment of the present invention.
- FIG. 53 is a perspective view showing the configuration of the main part of the current supply unit according to Modification 1 of Embodiment 4 of the present invention.
- FIG. 54 is a cross-sectional view showing the configuration of the main part of the current supply unit according to Modification 1 of Embodiment 4 of the present invention.
- FIG. 55 is an exploded perspective view showing the configuration of the main part of the current supply unit according to Modification 1 of Embodiment 4 of the present invention.
- FIG. 56 is a perspective view showing the configuration of the main part of the current supply unit according to the second modification of the fourth embodiment of the present invention.
- FIG. 57 is a perspective view showing the configuration of the main part of the current supply unit according to the second modification of the fourth embodiment of the present invention.
- FIG. 58 is a cross-sectional view showing the configuration of the main part of the current supply unit according to the second modification of the fourth embodiment of the present invention.
- FIG. 59 is an exploded perspective view showing the configuration of the main part of the current supply unit according to the second modification of the fourth embodiment of the present invention.
- FIG. 60 is a perspective view showing the configuration of the main part of the current supply unit according to the third modification of the fourth embodiment of the present invention.
- FIG. 61 is a perspective view showing a configuration of a main part of a current supply unit according to Modification 3 of Embodiment 4 of the present invention.
- FIG. 62 is a cross-sectional view showing a configuration of a main part of a current supply unit according to Modification 3 of Embodiment 4 of the present invention.
- FIG. 63 is an exploded perspective view showing the configuration of the main part of the current supply unit according to the third modification of the fourth embodiment of the present invention.
- FIG. 1 is a perspective view showing the configuration of the power module 1 according to the first embodiment of the present invention.
- FIG. 2 is an exploded perspective view showing the configuration of the power module 1 shown in FIG.
- the power module 1 shown in FIGS. 1 and 2 is formed with a plurality of connection terminals 10 that are always electrically connected to an object to be contacted to input and output power, and a plurality of insertion holes 21 through which the plurality of connection terminals 10 are inserted.
- FIG. 3 is a cross-sectional perspective view showing a configuration of a main part of the power module shown in FIG.
- FIG. 4 is a cross-sectional view showing the configuration of the power module shown in FIG.
- the connection terminal holder 20 is formed using an insulating material such as a resin such as silicon or a machinable ceramic.
- the connection terminal holder 20 is formed with the above-described plurality of insertion holes 21 for accommodating the connection terminals 10 in a predetermined pattern, and a hollow portion 22 that forms a hollow space communicating with each insertion hole 21.
- it is preferable that the connection terminal holder 20 is formed using a material with high thermal conductivity.
- the insertion hole 21 is provided corresponding to the connecting terminal 10 to be arranged, forms a columnar hollow space having a substantially rectangular opening on one main surface of the connecting terminal holder 20, and a part of the connecting terminal 10 is formed. Insert.
- the hollow portion 22 forms a columnar hollow space having a substantially rectangular opening on the other main surface of the connection terminal holder 20, and communicates with each insertion hole 21.
- the substrate 30 is formed using an insulating material such as an insulating resin or ceramics, and includes a plurality of semiconductor chips D having a predetermined function and electrodes E connected to the semiconductor chips D.
- the semiconductor chip D is realized by a semiconductor element such as a diode, a transistor, or an IGBT (insulated gate bipolar transistor). A plurality of semiconductor chips D are provided on the substrate 30 in accordance with the purpose of use.
- the electrode E is patterned using copper or the like to form a circuit pattern for transmitting an electric signal to the semiconductor chip D or the like mounted on the substrate 30.
- the semiconductor chip D and the electrode E are electrically connected by a wire W.
- substrate 30 may be connected with a screw
- the hollow portion 22 is formed so as to have an opening including the region where the electrode E is disposed. That is, the hollow portion 22 includes all circuit patterns on the substrate 30 including the electrodes E when the connection terminal holder 20 is attached to the substrate 30.
- FIG. 5 is a perspective view showing connection terminals of the power module according to the first embodiment.
- FIG. 6 is a side view showing the connection terminals of the power module according to the first embodiment.
- 5 and 6 is made of a band-shaped material having a uniform width and a uniform plate thickness made of a copper alloy such as phosphor bronze, chrome copper, beryllium copper or corson copper, and extends along the main surface. To form a curved shape.
- variety refers to the length of the direction orthogonal to a longitudinal direction in the main surface of a strip
- connection terminal 10 is provided at one end in the longitudinal direction and is in contact with an electrode provided in the external circuit, and a first contact portion 11 that is in contact with the electrode provided on the substrate 30 and the other end in the longitudinal direction.
- the second contact portion 12 is connected to the first contact portion 11 and the second contact portion 12 at both ends, and the connection portion 13 extends in a plurality of directions in the longitudinal direction and expands and contracts along a direction extending by the folding. Have.
- the connecting portion 13 includes a plurality of bending portions 131 having a curved shape in which a part of a belt-like member is folded, and a plurality of extending portions 132 extending from the bending portion 131.
- the connecting portion 13 has a configuration in which the adjacent extending portions 132 are connected to each other by the bending portion 131.
- the connecting portion 13 extends in a zigzag shape in which curved portions having opposite concavities and convexities are repeated so that the width direction (direction orthogonal to the longitudinal direction on the main surface) is parallel, and each curved portion 131 is provided. And the edge part of the width direction of each extending
- the extending portion 132 extends while maintaining a main surface in a planar shape, and is a pair of the bending portions 131 of the plurality of bending portions 131, specifically, the bending portions 131 that are opposed to each other at the shortest distance. Are connected.
- the first contact portion 11 and the second contact portion 12 include the connection portion 13 and are included in a region extending in a zigzag extending direction.
- the connecting portion 13 has a zigzag shape with the same pattern. That is, the region including the connecting portion 13 and extending in the zigzag extending direction has a rectangular parallelepiped shape.
- each of the first contact portion 11 and the second contact portion 12 is formed by folding back the end portion of the connection portion 13, and each end portion (main surface) is orthogonal to the main surface of the extending portion 132. Accordingly, in the first contact portion 11 and the second contact portion 12, the side surfaces (tip surfaces) intersecting in the longitudinal direction are substantially parallel to the main surface of the extending portion 132.
- the straight lines N1 that respectively pass through the center of the main surface of the extending portion 132 further pass through the first contact portion 11 and the second contact portion 12. At this time, it is preferable that the center of gravity of the connection terminal 10 exists on the straight line N1.
- the straight line N1 passes through the center of the first contact portion 11 and the second contact portion 12 in the width direction. Further, the straight line N1 is parallel to the direction in which the connecting portion 13 extends (the direction extending by folding).
- a plurality of curved portions 131 are provided according to the designed zigzag shape (number of times of folding). An even number of bending portions 131 may be provided, or an odd number may be provided. In consideration of the balance as the connection terminal 10, it is preferable that the curved portions 131 respectively connected to the first contact portion 11 and the second contact portion 12 are in opposite directions with respect to the straight line N ⁇ b> 1. The number will be an even number.
- the curvature radius of the bending portion 131 is preferably 2t or less.
- the effective inductance can be reduced by increasing the mutual inductance.
- currents in opposite directions flow between the extending portions 132 facing each other by folding the band-shaped member, and the effect of mutual inductance is increased by reducing the distance between the extending portions 132 facing each other. be able to.
- the distance between the extending portions 132 facing each other for example, when the radius of curvature of the curved portion 131 is 2t and the main surfaces of the extending portions 132 facing each other are parallel, the shortest distance of the extending portions 132 is 4 of the plate thickness t. Doubled.
- the distance between the extending portions 132 so as to be the distance described above, the effective inductance can be reduced. If the spring characteristics and the strength of the connection terminal itself are satisfied, the distance between the extending portions 132 is more preferably 4 t or less in terms of reducing the effective inductance.
- the length in the longitudinal direction of the extending portion 132 in the connecting portion 13 is da
- the length in the direction (width direction) orthogonal to the longitudinal direction of the extending portion 132 is db
- the distance between adjacent extending portions 132 is dp.
- the relationship between the distance dp and the effective inductance Le is as shown in the graph in FIG.
- the effective inductance Le decreases as the distance dp decreases. Therefore, the effective inductance Le can be reduced by shortening the curvature radius and the distance dp of the curved portion 131.
- the plate thickness t is t.
- connection terminal 10 is manufactured by molding a single flat plate by, for example, pressing. Specifically, a band shape corresponding to the outer edge shape of the connection terminal 10 is formed from a flat plate, and the curved portions 131 are formed at a predetermined pitch. Specifically, the connection terminal 10 is produced by bending a plate material having a uniform plate thickness multiple times. At this time, the first contact portion 11, the second contact portion 12, and the connection portion 13 may be processed so as to have different plate thicknesses. Alternatively, each component may be integrally formed by molding with a press or the like and then connecting the components.
- connection terminal 10 is inserted into each insertion hole 21 so that the second contact portion 12 protrudes from the upper surface of the connection terminal holder 20 and stands up from the substrate 30, and is accommodated in the connection terminal holder 20. Yes.
- the electrode to be connected is brought close to the connection terminal 10 from above, the electrode and the second contact portion 12 can be brought into contact with each other.
- the bending portion 131 is bent and elastically deformed.
- the connecting terminal 10 is elastically deformed by the bending portion 131 according to a load applied from the outside, so that a variation in the distance between the terminal and the contact object due to a variation in distance between conductors, a temperature change, a warp of the substrate, or the like. It can absorb and maintain a contact state with a contact object. Furthermore, since the center of gravity of the connection terminal 10 does not change due to the elastic deformation of the bending portion 131, the contact positions in the first contact portion 11 and the second contact portion 12 do not change.
- the contact area and the contact pressure can be made constant regardless of vibrations, and a stable contact state can be maintained between contact objects.
- the center of gravity of the connection terminal 10 deviates from the straight line N1
- the object is contacted by breaking against the intervening oxide film by sliding against the contact object. The conduction between them can be stabilized.
- connection terminal 10 is formed using a strip-shaped member, it is possible to flow a current of 40 A or more with one connection terminal 10.
- a current of 40 A or more can be passed.
- FIG. 9 is a perspective view for explaining an example of the arrangement of the connection terminals of the power module according to the first embodiment.
- FIG. 10 is a side view in the direction of arrow A1 in FIG. 9 and shows the connection terminal 10 when the connection portion 13 of the connection terminal 10 is aligned and arranged on the plane orthogonal to the width direction. It is a figure which shows a zigzag pattern.
- the zigzag pattern is a pattern in which the concave and convex are opposite to each other.
- connection portions 13 of the adjacent connection terminals 10 By providing the connection portions 13 of the adjacent connection terminals 10 so that the zigzag pattern is reversed, the direction of the current flowing through the adjacent extension portions 131 is reversed, and the effective inductance of the connection terminals 10 per one is Can be further reduced.
- the connection terminal 10 having the dimensions described above is used and the distance between the adjacent connection terminals 10 is 1.0 mm and an alternating current having a frequency of 1 kHz is passed, the effective inductance of one connection terminal 10 is 8. .17 nH.
- connection terminals 10 is effective in reducing the effective inductance of the connection terminals 10 arranged in the power module 1 by being applied in a range that affects the reduction of the effective inductance.
- connection terminal 10 having a strip shape
- the first contact portion 11 that comes into contact with the electrode provided on the substrate
- the second contact portion 12 that comes into contact with the electrode provided on the external circuit.
- a connection portion 13 that connects the first contact portion 11 and the second contact portion 12 and folds back in the longitudinal direction, and the first contact portion 11 and the second contact portion 12 are connected to the connection portion 13. And is included in a region extending in a zigzag extending direction, so that low inductance can be maintained and reliable and favorable conduction can be realized between contact objects.
- the distance between the first contact portion 11 and the second contact portion 12 is reduced while ensuring the spring property and electrical conduction of the connection terminal 10 by folding the belt-shaped member. be able to. Thereby, size reduction of the power module 1 can be achieved.
- connection terminal 10 is produced by bending a plurality of times using a plate material having a uniform thickness, the connection terminal 10 can be easily manufactured (processed). .
- connection portion 13 having a zigzag shape since the inductance is reduced by the connection portion 13 having a zigzag shape, a current conduction path (path length) can be lengthened.
- the elastic deformation region (stroke amount) can be increased, and the cross-sectional area (plate thickness) of the connecting portion 13 can be increased to increase the amount of current to be conducted.
- connection terminal for example, in the conventional connection terminal as disclosed in Patent Document 1, for example, a current of about 20 to 30 A is merely conducted by one connection terminal. For this reason, when it is necessary to flow a large current such as 100 A, five connection terminals are required. On the other hand, if the thickness of the connection terminal is increased in order to pass a current of 100 A with one connection terminal, the spring characteristics cannot be ensured. On the other hand, the connection terminal according to the present embodiment described above can flow a single current by changing the plate thickness or the like when a large current such as 100 A needs to flow. Compared to the case of using a plurality of such devices, it is possible to reduce the size of the apparatus.
- connection terminal according to the first embodiment of the present invention
- the second contact portion 12 has been described as having a uniform width and extending in the direction of the straight line N1.
- the second contact portion having a shape different from that of the second contact portion 12 is used. The part will be described.
- FIG. 11 is a perspective view which shows the connection terminal of the power module concerning the modification 1 of Embodiment 1 of this invention.
- FIG. 12 is a schematic diagram in the direction of arrow A2 in FIG.
- the connection terminal 100 according to the first modification extends in the direction of the straight line N1 with a uniform width from the connection portion 13, and then gradually decreases in width toward the tip to form a sharp tip shape. Is provided. Even if the contact surface of the contact target (electrode) is inclined in the width direction of the second contact portion 121 by forming the sharp tip shape of the second tip portion 121, the contact surface and the second contact are formed.
- the part 121 is in stable contact.
- FIG. 13 is a perspective view which shows the connection terminal of the power module concerning the modification 2 of Embodiment 1 of this invention.
- FIG. 14 is a schematic diagram in the direction of arrow A3 in FIG.
- the connection terminal 101 according to the second modification includes a second contact portion 122 having a tip end surface that is arcuate.
- the second contact portion 122 has a concave shape with respect to the straight line N1 and extends in the direction of the straight line N1. Since the distal end surface of the second contact portion 122 is concave, contact (line contact) is made at both ends with respect to the contact surface of the contact target (electrode), thereby reducing contact resistance and the second contact portion 122.
- the contact surface can be regulated (for example, regulation so that the contact surface and the straight line N1 are orthogonal to each other).
- FIG. 15 is a perspective view which shows the connection terminal of the power module concerning the modification 3 of Embodiment 1 of this invention.
- 16 is a schematic diagram in the direction of arrow A4 in FIG.
- the connection terminal 102 according to the third modification includes a second contact portion 123 whose tip surface has a zigzag shape.
- the second contact portion 123 has two top portions (the top portions 123a and 123b) when viewed in the width direction. Since the second contact portion 123 has two tops, the contact resistance is reduced and the relative position between the second contact portion 123 and the contact surface is regulated (for example, the contact surface and the straight line), as in the second modification described above.
- N1 can be regulated to be orthogonal).
- FIG. 17 is a perspective view which shows the connection terminal of the power module concerning the modification 4 of Embodiment 1 of this invention.
- FIG. 18 is a schematic diagram in the direction of arrow A5 in FIG.
- the connection terminal 103 according to the fourth modification includes a second contact portion 124 that extends from the connection portion 13 in the direction of the straight line N1 with a uniform width, and has a shape in which the thickness of the tip portion is reduced toward the tip. .
- the tip of the second contact portion 124 (the contact end with the contact target) is linear.
- the second contact portion 124 and the contact surface can be brought into line contact.
- the contact is stabilized as compared with the surface contact, and the contact resistance can be stabilized.
- the contact area does not change even when the second contact portion 124 is in contact with the contact surface while being inclined.
- FIG. 19 is a perspective view showing connection terminals of the power module according to the fifth modification of the first embodiment of the present invention.
- FIG. 20 is a side view showing the connection terminals of the power module according to the fifth modification of the first embodiment.
- the connection terminal 104 according to Modification 5 extends from the connection portion 13 in the direction of the straight line N1 with a uniform width, and the length extending in the direction of the straight line N1 is larger than the length of the second contact portion 12 described above.
- a contact portion 125 is provided.
- connection terminal 104 can be disposed without interfering with the terminal.
- FIG. 21 is a perspective view showing a connection terminal of the power module according to the sixth modification of the first embodiment of the present invention.
- FIG. 22 is a side view showing the connection terminals of the power module according to the sixth modification of the first embodiment.
- the connection terminal 105 according to the modification 6 has a length in the longitudinal direction of the extending portion in the connection portion 13a (for example, The length da) shown in FIG. 6 changes.
- the connecting portion 13a includes an extending portion 132a having first to third extending portions 1321 to 1323 having different lengths, and a curved portion 131 that connects the extending portions.
- the first to third extending portions 1321 to 1323 each extend in a strip shape (flat plate shape).
- the length in the extending direction of the first extending portion 1321 is smaller than the length in the extending direction of the second and third extending portions 1322 and 1323, and the length in the extending direction of the second extending portion 1322 is the extending direction of the third extending portion 1323. Less than the length of
- connection portion 13a three third extending portions 1323 are arranged so that the main surface is orthogonal to the straight line N1, and the first contact portion 11 is connected to the first contact portion 11 via the curved portion 131 on one end side (downward in FIG. 22) in the straight line N1 direction.
- a second extending portion 1322 and a first extending portion 1321 are arranged in this order on the other end side (upward in FIG. 22), and the first extending portion 1321 is connected to the second contact portion 12 via the bending portion 131.
- the connection terminal 105 can be arranged without interfering with other members even when the arrangement region of the connection portion 13a is restricted.
- FIG. 23 is a perspective view showing the connection terminals of the power module according to the modified example 7 of the first embodiment of the present invention.
- FIG. 24 is a side view showing the connection terminals of the power module according to the seventh modification of the first embodiment.
- the connecting portion 13b includes an extending portion 132b having first to third extending portions 1324 to 1326 having different lengths, and a curved portion 131 that connects the extending portions.
- the first to third extending portions 1324 to 1326 each extend in a strip shape (flat plate shape).
- the length in the stretching direction of the first stretching portion 1324 is smaller than the length in the stretching direction of the second and third stretching portions 1325 and 1326, and the length in the stretching direction of the second stretching portion 1325 is the stretching direction of the third stretching portion 1326. Less than the length of The length of the third extending portion 1326 in the extending direction is smaller than the length of the third extending portion 1323 in the extending direction.
- connection portion 13b five third extending portions 1326 are arranged so that the main surface is orthogonal to the straight line N1, and the first contact portion 11 is connected to the first contact portion 11 via the curved portion 131 on one end side in the straight line N1 direction (downward in FIG. 24).
- the second extending portion 1325 and the first extending portion 1324 are sequentially arranged on the other end side (upward in FIG. 24), and the first extending portion 1324 is connected to the second contact portion 12 via the curved portion 131. ing.
- the size of the connection terminal and the elasticity of the connection portion can be changed with respect to the connection terminal arrangement region. Good.
- FIG. 25 is a perspective view showing connection terminals of the power module according to the eighth modification of the first embodiment of the present invention.
- Embodiment 1 described above has been described on the assumption that the second contact portion 12 extends from the connection portion 13 in the direction of the straight line N1 with a uniform width.
- the connection terminal 107 according to the modification 8 includes a plurality of extending portions.
- the second contact portion 126 is formed by deforming a part of the extending portion 132 located at the end of the portion 132 in the direction of the straight line N1 (the central portion of the extending portion 132 in the present modification 8).
- the main surface is deformed so as to protrude in the direction of the straight line N1 and opposite to the adjacent extending part 132 with respect to the extending part 132 positioned at the end in the straight line N1 direction (for example, embossing).
- the second contact portion 126 having a substantially hemispherical shape is formed. Since the second contact portion 126 is substantially hemispherical, the second contact portion 126 and the contact target can be stably contacted even when the contact surface is inclined with respect to the straight line N1.
- the hemispherical shape includes a shape whose surface is smoothly curved, and includes a curved shape such as an ellipse.
- FIG. 26 is a perspective view showing connection terminals of the power module according to the ninth modification of the first embodiment of the present invention.
- the central portion (region smaller than the width) of the extending portion 132 has been described as being deformed.
- a region larger than the width of the extending portion 132 is deformed.
- the second contact portion 127 is formed.
- the second contact portion 127 and the contact target are stabilized by forming the second contact portion 127 into a substantially hemispherical shape having a diameter larger than the width.
- FIG. 27 is a perspective view showing connection terminals of the power module according to the tenth modification of the first embodiment of the present invention.
- the part of the extending portion 132 has been described as being deformed.
- a hole 1327 is provided on the main surface (second contact portion forming surface) of the extending portion 132,
- the connection terminal 107b may be manufactured by attaching the second contact member 126b having the same tip shape as the second contact portion 126 described above to the hole portion 1327.
- the hole 1327 is formed in a region including a region through which the central axis (straight line N1) of the connection terminal 107b passes.
- the second contact member 126b and the hole 1327 are joined by soldering or welding.
- the second contact portion may be formed on the hole portion 1327 using a cold spray method, or may be directly soldered or cold sprayed on the main surface of the extending portion 132 that does not have the hole portion 1327. May form the second contact portion.
- FIG. 28 is a perspective view showing the connection terminals of the power module according to the eleventh modification of the first embodiment of the present invention.
- the second contact portion 126 has been described as having a substantially hemispherical shape.
- the second contact portion 127 has a plurality of claw portions 1271. It may be a thing.
- the plurality of claw portions 1271 each have a weight shape having a sharp tip, and are provided so as to have a rotational symmetry with respect to the straight line N1.
- the second contact portion 127 includes the plurality of claw portions 1271, for example, when the contact target has a hemispherical shape, the spherical surface and the second contact portion 127 can be stably brought into contact with each other.
- FIG. 29 is a perspective view showing the connection terminals of the power module according to the modification 12 of the first embodiment of the present invention.
- the second contact portion 127 according to the above-described modification 11 may be formed by deformation by embossing or the like, or like the connection terminal 108a according to this modification 12, the main surface (the first surface)
- the connection terminal 108a may be manufactured by attaching a second contact member 127a having a tip shape equivalent to that of the above-described second contact portion 127 to the hole 1327 provided in the (2 contact portion forming surface).
- the second contact member 127a and the hole 1327 are joined by the same method as in the tenth modification.
- FIG. 30 is a perspective view showing connection terminals of the power module according to the modification 13 of the first embodiment of the present invention.
- the second contact portion 126 has been described as having a substantially hemispherical shape.
- the second contact portion 128 may have a weight shape. .
- FIG. 31 is a perspective view showing the connection terminals of the power module according to the modification 14 of the first embodiment of the present invention.
- the second contact portion 128 according to the modified example 13 described above may be formed by deformation by embossing or the like, or like the connection terminal 109a according to the modified example 14, the main surface (the first surface)
- the connection terminal 109a may be manufactured by attaching a second contact member 128a having a tip shape equivalent to the above-described second contact portion 128 to the hole 1327 provided in the (2 contact portion forming surface).
- the second contact member 128a and the hole 1327 are joined by the same method as in the tenth modification.
- FIG. 32 is an exploded perspective view showing the configuration of the power module according to the second embodiment.
- FIG. 33 is an exploded perspective view illustrating a configuration of a main part of the power module according to the second embodiment, and illustrates a configuration excluding the connection terminal holder.
- FIG. 34 is a perspective view illustrating the configuration of the main part of the power module according to the second embodiment, and is a partially enlarged view illustrating the configuration of the connection terminal and the substrate.
- symbol is attached
- the power module 1a shown in FIG. 32 has a plurality of connection terminals 200 that are respectively connected to a contact object to input and output power, and a connection terminal holder 20 in which a plurality of insertion holes 21 through which the plurality of connection terminals 200 are inserted are formed. And a substrate 30a on which a plurality of semiconductor chips D are loaded.
- the substrate 30a has a cylindrical shape that is erected on the surface of the substrate 30a on the side where the semiconductor chip D and the electrode E are disposed and extends in a direction perpendicular to the surface, And a conductive holding member 31 that holds the connection terminal 200.
- the holding member 31 is erected in a direction perpendicular to the surface of the electrode E of the substrate 30a, and is made of a metal or alloy having a hollow cylindrical shape.
- the holding member 31 has a hollow portion 31a that forms a cylindrical hollow space, and the connection terminal 200 is held by inserting a part of the connection terminal 200 into the hollow portion 31a.
- the holding member 31 is joined to the electrode E by a conductive adhesive material such as solder.
- FIG. 35 is a perspective view showing connection terminals of the power module according to the second embodiment.
- FIG. 36 is a side view showing the connection terminals of the power module according to the second embodiment.
- a connection terminal 200 shown in FIGS. 35 and 36 is made of a band-shaped material made of a copper alloy such as phosphor bronze, chrome copper, beryllium copper, or Corson copper, and is curved along the main surface. Make.
- the connection terminal 200 is provided at one end in the longitudinal direction, is held by a holding member 31 provided on the substrate 30a and is electrically connected to the electrode E, and a distal end portion 110 (first contact portion), and the other end in the longitudinal direction.
- the second contact portion 129 that is in contact with an electrode provided in an external circuit is connected to the tip portion 110 and the second contact portion 129 at both ends, and has a uniform width and a longitudinal direction.
- a connecting portion 13 formed by bending a plurality of times.
- the tip portion 110 and the second contact portion 129 include the connection portion 13 and are included in a region extending in a zigzag extending direction.
- the leading end portion 110 is formed by folding the end portion of the connecting portion 13 and extends in a direction orthogonal to the main surface of the extending portion 132.
- the distal end portion 110 extends from the base portion 111 with a width equal to the length (width) in the width direction orthogonal to the extending direction of the connection portion 13 and a width smaller than the width of the base portion 111, and slides on the hollow portion 31a.
- the insertion part 112 inserted so that contact is possible, the connection part 13 and the base part 111 are connected, and it has the flange part 113 of the width larger than the width
- the second contact portion 129 is formed by folding back the end portion of the connection portion 13, and a main surface (a surface in contact with an electrode provided in an external circuit) extends in a substantially arc shape along the longitudinal direction.
- the second contact portion 129 contacts an electrode provided in an external circuit at the top of the head.
- the straight lines N2 that respectively pass through the center of the main surface of the extending part 132 further pass through the top part 110 and the top of the second contact part 129, as in the first embodiment.
- the center of gravity of the connection terminal 200 exists on the straight line N2.
- the straight line N2 passes through the center in the width direction of the tip portion 110 and the second contact portion 129, respectively. Further, the straight line N2 is parallel to the direction in which the connecting portion 13 extends (the direction extending by folding).
- the diameter of the opening of the hollow portion 31a is equal to or slightly smaller than the width of the insertion portion 112.
- connection terminal 200 is inserted into each insertion hole 21 so that the second contact portion 129 protrudes from the upper surface of the connection terminal holder 20 while being held by the holding member 31, and is received in the connection terminal holder 20. Yes.
- the electrode to be connected is brought close to the connection terminal 200 from above, the electrode and the second contact portion 129 can be brought into contact with each other.
- the bending portion 131 is bent and elastically deformed.
- the second contact portion 129 moves along the straight line N2 described above, and the position of the center of gravity of the connection terminal 200 does not change.
- the bending portion 131 is elastically deformed according to a load applied from the outside, so that a variation in the distance between the terminal and the contact object due to a variation in distance between conductors, a temperature change, a warp of the substrate, and the like. It can absorb and maintain a contact state with a contact object.
- the center of gravity of the connection terminal 200 does not change due to the elastic deformation of the bending portion 131, the contact position at the tip portion 110 and the second contact portion 129 does not change. For this reason, it becomes possible to maintain the stable contact state between contact objects.
- connection terminal 200 having a strip shape
- the tip portion 110 that is electrically connected to the electrode provided on the substrate
- the second contact portion that is in contact with the electrode provided on the external circuit.
- 129, and the connection part 13 which connects the front-end
- tip part 110 and the 2nd contact part 129 include the connection part 13, Since it is included in the region extending in the zigzag extending direction, it is possible to maintain a low inductance and realize reliable and favorable conduction between the contact objects.
- connection terminal 200 since the insertion portion 112 of the distal end portion 110 is press-fitted and held in the hollow portion 31a of the holding member 31, the connection terminal 200 is applied when a load is applied from the outside. Even if it exists, the axis
- the main surface of the 2nd contact part 129 since the main surface of the 2nd contact part 129 has comprised the substantially arc shape along the longitudinal direction, compared with what the top part makes
- the main surface of the second contact portion 129 has a substantially arc shape along the longitudinal direction, so that the contact area with the contact target is larger than that in which the top of the head has a sharp shape, and the followability to vibration and the like is improved. Can be improved.
- FIG. 37 is a perspective view showing the configuration of the main part of the connection terminal of the power module according to the modification of the second embodiment of the present invention.
- the main surface of the second contact portion 129 has been described as extending in a substantially arc shape along the longitudinal direction.
- the main surface may extend in a substantially V shape along the longitudinal direction.
- FIG. 38 is an exploded perspective view showing the configuration of the power module according to the third embodiment.
- FIG. 39 is an exploded perspective view showing the configuration of the main part of the power module according to the third embodiment, and shows the configuration excluding the connection terminal holder.
- FIG. 40 is a perspective view illustrating the configuration of the main part of the power module according to the third embodiment, and is a partially enlarged view illustrating the configuration of the connection terminal and the substrate.
- symbol is attached
- the power module 1b shown in FIG. 38 includes a plurality of connection terminals 202 that are respectively connected to a contact object to input and output power, and a connection terminal holder 20 in which a plurality of insertion holes 21 through which the plurality of connection terminals 202 are inserted are formed. And a substrate 30 on which a plurality of semiconductor chips D are loaded.
- FIG. 41 is a perspective view showing the connection terminals of the power module according to the third embodiment.
- FIG. 42 is a side view showing the connection terminals of the power module according to the third embodiment.
- 41 and 42 is made of a band-shaped material having a uniform width and a uniform plate thickness made of a copper alloy such as phosphor bronze, chrome copper, beryllium copper, or corson copper, and extends along the main surface. To form a curved shape.
- the connection terminal 202 is provided at one end in the longitudinal direction, and is provided at a first contact portion 114 that contacts an electrode (electrode E) provided on the substrate 30 and at the other end in the longitudinal direction, and is provided in an external circuit.
- the second contact portion 129 that comes into contact with the electrode, the first contact portion 114 and the second contact portion 129 are connected at both ends, and the connection portion 13 is formed by bending the longitudinal direction a plurality of times, and the tip of the first contact portion 114 And a flat plate portion 14 extending in a flat plate shape.
- the flat plate portion 14 extends so that the main surface thereof is parallel to the main surface of the extending portion 132 of the connection portion 13.
- the 1st contact part 114 and the 2nd contact part 129 are included in the area
- the straight lines N3 that respectively pass through the center of the main surface of the extending part 132 further pass through the tops of the first contact part 114 and the second contact part 129, as in the first embodiment. At this time, it is preferable that the center of gravity of the connection terminal 202 exists on the straight line N3. Note that the straight line N3 passes through the center portion of the first contact portion 114 and the second contact portion 129 in the width direction.
- a main surface is orthogonal to the straight line N3, but it inclines with respect to the plane orthogonal to the straight line N3 (relative to the straight line N3) It may be non-orthogonal).
- the flat plate part 14 may include the connection part 13 and extend outside a region extending in a zigzag extending direction.
- connection terminal 202 is inserted into each insertion hole 21 so that the second contact portion 129 protrudes from the upper surface of the connection terminal holder 20 in a state where the connection terminal 202 stands up from the substrate 30 by the flat plate portion 14. Contained. For this reason, when the electrode to be connected is brought close to the connection terminal 202 from above, the electrode and the second contact portion 129 can be brought into contact with each other. When the second contact portion 129 comes into contact with the electrode and a load is applied from the connection target, the bending portion 131 is bent and elastically deformed.
- connection terminal 202 when the center of gravity of the connection terminal 202 exists on the straight line N3, the second contact portion 129 moves along the straight line N3 described above, and the position of the center of gravity of the connection terminal 202 does not change.
- the bending portion 131 is elastically deformed according to a load applied from the outside, so that a variation in the distance between the terminal and the contact object due to a variation in distance between conductors, a temperature change, a warp of the substrate, or the like. It can absorb and maintain a contact state with a contact object.
- connection terminal 202 since the center of gravity of the connection terminal 202 does not change due to the elastic deformation of the bending portion 131, the contact positions of the first contact portion 114 and the second contact portion 129 do not change. For this reason, the contact area and the contact pressure can be made constant regardless of vibrations, and a stable contact state can be maintained between contact objects.
- the connection terminal 202 having a strip shape the first contact portion 114 that contacts an electrode provided on the substrate and the second contact portion 129 that contacts an electrode provided on an external circuit.
- a connecting portion 13 that connects the first contact portion 114 and the second contact portion 129 and folds back in the longitudinal direction a plurality of times, and the first contact portion 114 and the second contact portion 129 are connected to the connecting portion 13. And is included in a region extending in a zigzag extending direction, so that low inductance can be maintained and reliable and favorable conduction can be realized between contact objects.
- the power module 1b can be compared with the first embodiment. Easy to assemble.
- the flat plate portion 14 may be fixed on the electrode E of the substrate 30 with a conductive adhesive material such as solder, or metal powder (for example, silver paste or copper paste). ) May be fixed on the electrode E by sintering bonding, or may be fixed on the electrode E by ultrasonic bonding.
- a conductive adhesive material such as solder, or metal powder (for example, silver paste or copper paste).
- FIG. 43 is an exploded perspective view illustrating a configuration of a main part of the power module according to the first modification of the third embodiment.
- the connection terminal 202 is described as being maintained on the substrate 30 by the flat plate portion 14, but the connection terminal 202 is placed on the substrate 30 by the fixing member 40 provided on the substrate 30. It may be fixed.
- a power module 1c shown in FIG. 43 includes a plurality of connection terminals 202, a connection terminal holder 20a having a substantially plate shape in which a plurality of insertion holes 21 through which the plurality of connection terminals 202 are respectively inserted, and a plurality of semiconductor chips. And a fixing member 40 provided on the substrate 30 and holding and fixing the connection terminals 202.
- the fixing member 40 is formed using an insulating material such as a resin, is fixed to the upper surface of the substrate 30, and holds the first contact portion 114 and the flat plate portion 14 of the connection terminal 202. Thereby, the fixed state with respect to the board
- connection terminal 202 may be fixed at a predetermined position of the substrate 30 by soldering or the like in advance before the fixing member 40 is disposed.
- the plate thickness of the connection terminal holder 20a is a length considering the thickness of the fixing member 40, and is smaller than the plate thickness of the connection terminal holder 20 described above.
- FIG. 44 is a perspective view illustrating a configuration of a main part of a power module according to the second modification of the third embodiment.
- the first contact portion 114 is disposed on the electrode E and electrically connected thereto.
- the flat plate portion 14 and the electrode E are connected to the wire W. It may be electrically connected via a cable. In this way, the connection terminal and the electrode may be indirectly connected by a known method.
- the flat plate part 14 has conductivity.
- FIG. 45 is a top view showing a schematic configuration of the inspection system according to the fourth embodiment.
- FIG. 46 is a side view illustrating a schematic configuration of the inspection system according to the fourth embodiment.
- FIG. 47 is a partial cross-sectional view illustrating a schematic configuration of the inspection system according to the fourth embodiment.
- the inspection system 500 shown in FIGS. 45 to 47 is electrically connected to an inspection object and performs input / output inspection of the electric power of the inspection object.
- the inspection system 500 outputs a test signal supplied to the inspection target and a power supply signal (current) for the inspection, and holds a base unit 501 (control unit) that receives the test signal from the inspection target and the inspection target.
- the holding unit 502, the base unit 501, and the inspection target are electrically connected to output a test signal from the base unit 501 to the inspection target and to output a test signal from the inspection target to the base unit 501.
- a base unit 501 and an inspection target are electrically connected to each other, and a current supply unit 510 (energization unit) that supplies a feeding signal (large current) to the inspection target is provided.
- the test signal is output from a control board (not shown) connected to the base unit 501, and is output to the test unit 503 through the base unit 501.
- the test unit 503 electrically connects the base unit 501 and the inspection target using, for example, pogo pins.
- the current supply unit 510 electrically connects the base unit 501 and the inspection target using the connection terminal 300.
- the inspection target is, for example, a semiconductor package or a power module, and the test unit 503 and the current supply unit are electrically connected by contact with, for example, leads (electrodes) provided on the semiconductor package.
- FIG. 48 is a perspective view showing a schematic configuration of the current supply unit according to the fourth embodiment.
- FIG. 49 is a perspective view illustrating a configuration of a main part of the current supply unit according to the fourth embodiment.
- FIG. 50 is a cross-sectional view illustrating a schematic configuration of the current supply unit according to the fourth embodiment.
- the current supply unit 510 includes a connection terminal 300, a first member 511, a second member 512, a bus bar 513, and a set screw 514 (fixing means).
- connection terminal 300 is formed using a conductive material, is provided at one end in the longitudinal direction of the second contact portion 126 and the connection portion 13 described above, and contacts the first member 511 or the second member 512. 1 contact portion 115.
- the first contact portion 115 has a flat plate shape and extends in the longitudinal direction of the connection terminal 300.
- the first member 511 is formed using a conductive material, has a substantially L shape in a side view, holds the second member 512, and fixes the bus bar 513.
- the first member 511 holds the bus bar 513 by screwing, soldering, welding, or the like.
- the second member 512 is formed using a conductive material, has a substantially U shape in a top view, and holds the connection terminal 300 inside the U shape.
- the second member 512 has a plurality of slits 512a formed at the bottom of the U-shape, and a screw hole 512b that communicates with the slit 512a from the side of the U-shape and can be screwed with the set screw 514. Yes.
- a plurality of slits 512 a are formed according to the arrangement of the connection terminals 300.
- a plurality of screw holes 512b are formed according to the formation position of the slit 512a.
- the first member 511 and the second member 512 constitute a conductive casing that is electrically connected to the base unit 501 via the bus bar 513 and holds the plurality of connection terminals 300.
- the bus bar 513 has a conductive band shape (flat plate shape), one end side is fixed to the first member 511, and the other end is connected to a current supply source provided in the base unit 501.
- connection terminal 300 is held by the second member 512 in a state where the first contact portion 115 is accommodated in the slit 512a and the set screw 514 is in pressure contact.
- the first contact portion 115 is in pressure contact with the wall surface of the second member 512 (slit 512a) by the pressure contact of the set screw 514.
- the second contact portion 126 of the connection terminal 300 is located above the plane P ⁇ b> 1 that passes through the upper end surface of the second member 512, and is in a state of protruding from the second member 512.
- FIG. 51 is a diagram for explaining a case where a load is applied to the connection terminal of the current supply unit according to the fourth embodiment.
- a broken line Q in FIG. 51 indicates the position of the connection terminal 300 in a state where no load is applied to the connection terminal 300 (see FIG. 50).
- the connection terminal 300 is held by the holding unit 502, and when a load F is applied from the inspection target (lead) to the second contact portion 126, the connection portion 13 is elastically deformed and contracts in the longitudinal direction. It will be in the state.
- the second contact portion 126 of the connection terminal 300 is positioned above the plane P1 and is arranged so as to protrude from the second member 512, or the elasticity of the connection portion 13 is designed.
- connection terminal 300 can be used as a terminal of a relay unit that performs signal relay, in addition to a terminal used in a power module or the like.
- the conductive casing formed of the first member 511 and the second member 512 holds the plurality of connection terminals 300 and outputs a large current via the bus bar 513. Since the connection is made, even when a large current is passed, it is possible to maintain a low inductance and realize reliable and favorable conduction between contact objects.
- the inspection target is held by the holding unit 502, and when the load F is applied from the inspection target (lead) to the second contact portion 126, the inspection target lead.
- the connection terminal 300 is arranged so as to be in a non-contact state with the second member 512 or the like, the current flow in the current supply unit 510 can be stabilized.
- the current supply unit 510 (energization unit) has been described as relaying a power supply signal (large current) and supplying it to an inspection target, but it is used as a relay of a test signal. That is, the current supply unit 510 may be used instead of the test unit 503.
- connection terminal 300 is inserted into the slit 512a provided in the second member 512, and the connection terminal 300 is fixed to the second member 512 with the set screw 514.
- a modification of the manner of fixing the connection terminal to the housing will be described.
- FIG. 52 is a perspective view illustrating a configuration of a main part of a current supply unit according to the first modification of the fourth embodiment.
- FIG. 53 is a perspective view illustrating a configuration of a main part of a current supply unit according to the first modification of the fourth embodiment.
- FIG. 54 is a cross-sectional view illustrating a configuration of a main part of a current supply unit according to the first modification of the fourth embodiment.
- FIG. 55 is an exploded perspective view showing the configuration of the main part of the current supply unit according to the first modification of the fourth embodiment.
- the current supply unit 520 according to the first modification fixes the connection terminal 300 to the first member 521 by screwing directly.
- the current supply unit 520 includes a connection terminal 300, a first member 521, a second member 522, a set screw 523 (fixing means), and a bus bar 513 (not shown).
- the connection terminal 300 is formed with a through hole 115a that penetrates in the thickness direction in the first contact portion 115 and into which the set screw 523 can be inserted.
- the first member 521 is formed using a conductive material and has a substantially convex shape in a side view. Specifically, the first member 521 has a flat base portion 521a and a protruding portion 521b protruding from the main surface of the base portion 521a. A plurality of screw holes 5211 that can be screwed with the set screws 523 are formed in the protruding portion 521 b in accordance with the arrangement of the connection terminals 300.
- the second member 522 is formed using a conductive material, has a substantially U shape in top view, and accommodates the connection terminal 300 inside the U shape.
- a bus bar 513 is fixed to the second member 522.
- the first member 521 and the second member 522 constitute a conductive casing that is electrically connected to the base unit 501 via the bus bar 513 and holds the plurality of connection terminals 300.
- connection terminal 300 since the connection terminal 300 is fixed to the first member 521 with the set screw 523, the connection terminal 300 is more securely attached to the housing than when the set screw is pressed and fixed. Can be fixed to.
- FIG. 56 is a perspective view illustrating a configuration of a main part of a current supply unit according to the second modification of the fourth embodiment.
- FIG. 57 is a perspective view illustrating a configuration of a main part of a current supply unit according to the second modification of the fourth embodiment.
- FIG. 58 is a cross-sectional view illustrating a configuration of a main part of a current supply unit according to the second modification of the fourth embodiment.
- FIG. 59 is an exploded perspective view showing the configuration of the main part of the current supply unit according to the second modification of the fourth embodiment.
- the connection terminal 300 is sandwiched and fixed between the first member 531 and the second member 532 or the third member 533.
- the current supply unit 530 includes a connection terminal 300, a first member 531, a second member 532, a third member 533, a fourth member 534, a set screw 535 (fixing means), and a bus bar 513 (not shown). And).
- the first member 531 is formed using a conductive material and has a substantially convex shape in a side view. Specifically, the first member 531 includes a base portion 531a having a flat plate shape and a protruding portion 531b protruding from the main surface of the base portion 531a. A screw hole 5311 that can be screwed into the set screw 535 is formed in the base portion 531a.
- the second member 532 is formed using a conductive material, has a substantially L shape in a side view, and sandwiches the connection terminal 300 (first contact portion 115) with the first member 531.
- the second member 532 is formed with an insertion hole 532 a that communicates with the screw hole 5311, inserts a set screw 535, and can be locked with the head of the set screw 535.
- the third member 533 is formed using a conductive material, has a substantially L shape in a side view, and sandwiches the connection terminal 300 (first contact portion 115) with the first member 531.
- the third member 533 is formed with an insertion hole 533a that communicates with the screw hole 5311 and through which the set screw 535 is inserted and that can be locked to the head of the set screw 535.
- the second member 532 and the third member 533 have a stepped shape corresponding to the convex shape of the first member 531, and when the second member 532 and the third member 533 are connected to the first member 531, they are in surface contact with each other. Then, a substantially flat base portion in which the connection terminals 300 are erected is formed (see, for example, FIG. 57).
- the fourth member 534 is formed using a conductive material, has a substantially U shape when viewed from above, and accommodates the connection terminal 300 inside the U shape.
- a bus bar 513 is fixed to the fourth member 534.
- a conductive housing that is electrically connected to the base unit 501 via the bus bar 513 and holds the plurality of connection terminals 300 by the first member 531, the second member 532, the third member 533, and the fourth member 534. Configure.
- connection terminal 300 As shown in FIG. 58, in the connection terminal 300, the first contact portion 115 is sandwiched between the first member 531 and the second member 532 (or the third member 533), and the set screw 535 is screwed into the screw hole 5311. Then, the connection member 300 is fixed by the second member 532 being pressed against the first member 531.
- the set screw is provided for each connection terminal 300. Compared with the case of fixing by providing and pressure-contacting, it can be set as a simple structure.
- FIG. 60 is a perspective view illustrating a configuration of a main part of a current supply unit according to the third modification of the fourth embodiment.
- FIG. 61 is a perspective view illustrating a configuration of a main part of a current supply unit according to the third modification of the fourth embodiment.
- FIG. 62 is a cross-sectional view illustrating a configuration of a main part of a current supply unit according to the third modification of the fourth embodiment.
- FIG. 63 is an exploded perspective view showing the configuration of the main part of the current supply unit according to the third modification of the fourth embodiment.
- the connection terminal 301 is press-fitted into and fixed to the hole 541 a formed in the first member 541.
- the current supply unit 540 includes a connection terminal 301, a first member 541, a second member 542, and a bus bar 513 (not shown).
- the connection terminal 301 is formed using a conductive material, and includes the tip portion 110, the second contact portion 126, and the connection portion 13 described above.
- the first member 541 is formed using a conductive material and has a substantially flat plate shape.
- the second member 542 is placed on the first member 541 and holds the connection terminal 301.
- a plurality of holes 541 a (fixing means) into which the distal end portion 110 of the connection terminal 301 is press-fitted are formed according to the arrangement of the connection terminals 301.
- the diameter of the hole 541 a is slightly smaller than the width of the insertion portion 112.
- the shape of the insertion portion 112 can be changed within a range where the insertion into the hole 541a is possible, such as bending the end in the width direction.
- the second member 542 is formed using a conductive material, has a substantially U shape when viewed from above, and accommodates the connection terminal 301 inside the U shape.
- a bus bar 513 is fixed to the second member 542.
- the first member 541 and the second member 542 form a conductive housing that is electrically connected to the base unit 501 via the bus bar 513 and holds the plurality of connection terminals 301.
- connection terminal 301 is fixed to the first member 541 by press-fitting the connection terminal 301 into the hole 541a. It can be fixed more easily. Further, the connection terminal 301 can be easily replaced on a terminal basis.
- the radius of curvature of the bending portion 131 has been described as being twice the plate thickness.
- the present invention is not limited to this, and a radius of curvature other than twice the plate thickness, for example, the plate thickness
- the radius of curvature may be larger than twice the radius, or the radius of curvature smaller than twice the plate thickness may be used as long as the material can ensure spring characteristics and physical strength.
- the main surfaces of the extending portions 132 are parallel to each other, and the distance between the extending portions 132 facing each other is twice the plate thickness.
- the main surfaces of 132 may not be parallel to each other, and the distance between the extending portions 132 may not be twice the plate thickness.
- the distance between the extending portions 132 is reduced within a range in which the extending portions 132 do not contact each other due to elastic deformation of the curved portion 131, and the main surfaces of the extending portions 132 do not need to be parallel to each other. Further, the main surfaces of the extending portions 132 are parallel to each other and inclined with respect to each of the straight lines N1 to N3 (the angle ⁇ between the main surface and the straight lines N1 to N3 is 0 ° ⁇ ⁇ 90 °. ).
- the straight lines N1 passing through the center of the main surface of the extending portion 132 in the first embodiment further pass through the first contact portion 11 and the second contact portion 12, respectively.
- the first contact portion 11 and the second contact portion 12 are applicable as long as they include the connection portion 13 and are included in a region extending in a zigzag extending direction.
- the belt is formed using a strip-shaped material having at least a uniform plate thickness.
- the plate thickness and the plate width may be different.
- the second contact portion 12 may be thick (or thin).
- the “thickness” is the same in design and includes manufacturing errors.
- the first contact portion can be used as any combination of the connection terminals according to the above-described embodiment or modification, and the first contact portion according to each embodiment or modification.
- a connection terminal can be comprised combining 2nd contact part suitably.
- Embodiments 1 to 4 described above are merely examples for carrying out the present invention, and the present invention is not limited to these. Further, the present invention can form various inventions by appropriately combining a plurality of constituent elements disclosed in the respective embodiments and modifications. It is obvious from the above description that the present invention can be variously modified according to specifications and the like, and that various other embodiments are possible within the scope of the present invention.
- connection terminal, the power module, and the energization unit according to the present invention are useful for maintaining a low inductance and realizing reliable and favorable conduction between contact objects.
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Abstract
Description
図1は、本発明の実施の形態1にかかるパワーモジュール1の構成を示す斜視図である。また、図2は、図1に示すパワーモジュール1の構成を示す分解斜視図である。図1,2に示すパワーモジュール1は、接触対象と電気的に常時接続して電力の入出力を行う複数の接続端子10と、複数の接続端子10をそれぞれ挿通する挿通孔21が複数形成された接続端子ホルダ20と、複数の半導体チップDが積載された基板30と、を備える。 (Embodiment 1)
FIG. 1 is a perspective view showing the configuration of the
Le=L1+L2-M1-M2 ・・・(1) As described above, by forming a zigzag shape such that the distance between adjacent extending
Le = L1 + L2-M1-M2 (1)
図11は、本発明の実施の形態1の変形例1にかかるパワーモジュールの接続端子を示す斜視図である。図12は、図11の矢視A2方向の模式図である。本変形例1にかかる接続端子100は、接続部13から一様な幅で直線N1方向に延びた後、先端に向かうにしたがって幅が順次縮小して鋭利な先端形状をなす第2接触部121を備える。第2先端部121が鋭利な先端形状をなすことにより、接触対象(電極)の接触面が、第2接触部121の幅方向において傾斜している場合であっても、接触面と第2接触部121とが安定して接触する。 (
FIG. 11: is a perspective view which shows the connection terminal of the power module concerning the
図13は、本発明の実施の形態1の変形例2にかかるパワーモジュールの接続端子を示す斜視図である。図14は、図13の矢視A3方向の模式図である。本変形例2にかかる接続端子101は、先端面が弧状をなす第2接触部122を備える。具体的には、第2接触部122は、直線N1に対して凹形状をなして該直線N1方向に延びる。第2接触部122の先端面が凹状をなすことにより、接触対象(電極)の接触面に対して両端で接触(線接触)することとなるため、接触抵抗を低減し、第2接触部122と接触面との相対位置を規制(例えば、接触面と直線N1とが直交するように規制)することができる。 (
FIG. 13: is a perspective view which shows the connection terminal of the power module concerning the
図15は、本発明の実施の形態1の変形例3にかかるパワーモジュールの接続端子を示す斜視図である。図16は、図15の矢視A4方向の模式図である。本変形例3にかかる接続端子102は、先端面がジグザグ状をなす第2接触部123を備える。具体的には、第2接触部123は、幅方向でみたときに二つの頭頂部(頭頂部123a,123b)を有する。第2接触部123が二つの頭頂部を有することにより、上述した変形例2と同様、接触抵抗を低減し、第2接触部123と接触面との相対位置を規制(例えば、接触面と直線N1とが直交するように規制)することができる。 (
FIG. 15: is a perspective view which shows the connection terminal of the power module concerning the
図17は、本発明の実施の形態1の変形例4にかかるパワーモジュールの接続端子を示す斜視図である。図18は、図17の矢視A5方向の模式図である。本変形例4にかかる接続端子103は、接続部13から一様な幅で直線N1方向に延びるとともに、先端部の板厚が先端に向かうにしたがって縮小した形状をなす第2接触部124を備える。具体的には、第2接触部124の先端(接触対象との接触端)が線状をなす。第2接触部124の先端が線状をなすことにより、第2接触部124と接触面とを線接触させることができる。第2接触部124と接触面とが線接触することで、面接触する場合と比して接触が安定し、接触抵抗を安定化させることができる。また、本変形例4によれば、第2接触部124が接触面に対して傾斜して接触した場合であっても、接触面積が変化しないという効果を奏する。 (
FIG. 17: is a perspective view which shows the connection terminal of the power module concerning the
図19は、本発明の実施の形態1の変形例5にかかるパワーモジュールの接続端子を示す斜視図である。図20は、本実施の形態1の変形例5にかかるパワーモジュールの接続端子を示す側面図である。本変形例5にかかる接続端子104は、接続部13から一様な幅で直線N1方向に延びるとともに、直線N1方向に延在する長さが上述した第2接触部12の長さより大きい第2接触部125を備える。第2接触部125の延在長さを調整することにより、例えば、挿通孔21の形状や接続端子の配置において、接続部13の配設領域に制約がある場合であっても、他の部材と干渉することなく接続端子104を配置することができる。 (
FIG. 19 is a perspective view showing connection terminals of the power module according to the fifth modification of the first embodiment of the present invention. FIG. 20 is a side view showing the connection terminals of the power module according to the fifth modification of the first embodiment. The
図21は、本発明の実施の形態1の変形例6にかかるパワーモジュールの接続端子を示す斜視図である。図22は、本実施の形態1の変形例6にかかるパワーモジュールの接続端子を示す側面図である。上述した変形例5では第2接触部125の延在長さを調整するものとして説明したが、本変形例6にかかる接続端子105は、接続部13aにおける延伸部の長手方向の長さ(例えば、図6に示す長さda)が変化する。具体的には、接続部13aは、長さの異なる第1~第3延伸部1321~1323を有する延伸部132aと、各延伸部を接続する湾曲部131と、を有する。第1~第3延伸部1321~1323は、各々帯状(平板状)に延びる。第1延伸部1321の延伸方向の長さは第2および第3延伸部1322および1323の延伸方向の長さより小さく、第2延伸部1322の延伸方向の長さは第3延伸部1323の延伸方向の長さより小さい。 (
FIG. 21 is a perspective view showing a connection terminal of the power module according to the sixth modification of the first embodiment of the present invention. FIG. 22 is a side view showing the connection terminals of the power module according to the sixth modification of the first embodiment. Although the
図23は、本発明の実施の形態1の変形例7にかかるパワーモジュールの接続端子を示す斜視図である。図24は、本実施の形態1の変形例7にかかるパワーモジュールの接続端子を示す側面図である。上述した変形例6に対し、本変形例7にかかる接続端子106のように、接続部13bにおける延伸部の長手方向の長さが変化する。具体的には、接続部13bは、長さの異なる第1~第3延伸部1324~1326を有する延伸部132bと、各延伸部を接続する湾曲部131と、を有する。第1~第3延伸部1324~1326は、各々帯状(平板状)に延びる。第1延伸部1324の延伸方向の長さは第2および第3延伸部1325および1326の延伸方向の長さより小さく、第2延伸部1325の延伸方向の長さは第3延伸部1326の延伸方向の長さより小さい。第3延伸部1326の延伸方向の長さは、上述した第3延伸部1323の延伸方向の長さより小さい。 (
FIG. 23 is a perspective view showing the connection terminals of the power module according to the modified example 7 of the first embodiment of the present invention. FIG. 24 is a side view showing the connection terminals of the power module according to the seventh modification of the first embodiment. In contrast to the
図25は、本発明の実施の形態1の変形例8にかかるパワーモジュールの接続端子を示す斜視図である。上述した実施の形態1は、第2接触部12が接続部13から一様な幅で直線N1方向に延びてなるものとして説明したが、本変形例8にかかる接続端子107は、複数の延伸部132のうちの直線N1方向の端部に位置する延伸部132の一部(本変形例8では延伸部132の中央部)を変形させて第2接触部126を形成する。具体的には、直線N1方向の端部に位置する延伸部132に対し、直線N1方向であって、隣接する延伸部132とは反対方向に突出するように主面を変形(例えばエンボス加工)させることによって略半球状をなす第2接触部126を形成する。第2接触部126が略半球状をなすことにより、接触面が直線N1に対して傾斜した場合であっても、第2接触部126と接触対象とを安定して接触させることができる。なお、ここでいう半球状とは表面が滑らかに湾曲した形状を含み、楕円状などの湾曲形状を含むものである。 (
FIG. 25 is a perspective view showing connection terminals of the power module according to the eighth modification of the first embodiment of the present invention.
図26は、本発明の実施の形態1の変形例9にかかるパワーモジュールの接続端子を示す斜視図である。上述した変形例8では延伸部132の中央部(幅よりも小さい領域)を変形させるものとして説明したが、本変形例9にかかる接続端子107aでは、延伸部132の幅よりも大きな領域を変形させて第2接触部127を形成する。このように、第2接触部127が幅より大きな径の略半球状をなすことにより、接触面が直線N1に対して傾斜した場合であっても、第2接触部127と接触対象とを安定して接触させることができ、さらに、上述した変形例8にかかる第2接触部126よりも広い範囲で接触対象との安定した接触を実現することができる。 (Modification 9 of Embodiment 1)
FIG. 26 is a perspective view showing connection terminals of the power module according to the ninth modification of the first embodiment of the present invention. In the above-described modified example 8, the central portion (region smaller than the width) of the extending
図27は、本発明の実施の形態1の変形例10にかかるパワーモジュールの接続端子を示す斜視図である。上述した変形例8では延伸部132の一部を変形させるものとして説明したが、本変形例10のように、延伸部132の主面(第2接触部形成面)に穴部1327を設け、該穴部1327に上述した第2接触部126と同等の先端形状をなす第2接触部材126bを取り付けることによって接続端子107bを作製するものであってもよい。穴部1327は、接続端子107bの中心軸(直線N1)が通過する領域を含む領域に形成される。第2接触部材126bと穴部1327とは、半田や溶接などによって接合される。なお、穴部1327に対して、コールドスプレー法を用いて第2接触部を形成するものであってもよいし、穴部1327を有しない延伸部132の主面上に直接半田やコールドスプレー法により第2接触部を形成するものであってもよい。 (
FIG. 27 is a perspective view showing connection terminals of the power module according to the tenth modification of the first embodiment of the present invention. In the above-described
図28は、本発明の実施の形態1の変形例11にかかるパワーモジュールの接続端子を示す斜視図である。上述した変形例8では第2接触部126が略半球状をなすものとして説明したが、本変形例11にかかる接続端子108のように、第2接触部127が、複数の爪部1271を有するものであってもよい。複数の爪部1271は、各々鋭利な先端を有する錘状をなし、直線N1に対して回転対称性を有する配置となるように設けられる。第2接触部127が複数の爪部1271を有することにより、例えば、接触対象が半球状をなす場合に、該球面と第2接触部127とを安定して接触させることができる。 (
FIG. 28 is a perspective view showing the connection terminals of the power module according to the eleventh modification of the first embodiment of the present invention. In the
図29は、本発明の実施の形態1の変形例12にかかるパワーモジュールの接続端子を示す斜視図である。上述した変形例11にかかる第2接触部127はエンボス加工などによる変形により形成するものであってもよいし、本変形例12にかかる接続端子108aのように、延伸部132の主面(第2接触部形成面)に設けた穴部1327に、上述した第2接触部127と同等の先端形状をなす第2接触部材127aを取り付けることによって接続端子108aを作製するものであってもよい。第2接触部材127aと穴部1327とは、変形例10と同様の手法により接合される。 (
FIG. 29 is a perspective view showing the connection terminals of the power module according to the
図30は、本発明の実施の形態1の変形例13にかかるパワーモジュールの接続端子を示す斜視図である。上述した変形例8では第2接触部126が略半球状をなすものとして説明したが、本変形例11にかかる接続端子109のように、錘状をなす第2接触部128であってもよい。 (
FIG. 30 is a perspective view showing connection terminals of the power module according to the
図31は、本発明の実施の形態1の変形例14にかかるパワーモジュールの接続端子を示す斜視図である。上述した変形例13にかかる第2接触部128はエンボス加工などによる変形により形成するものであってもよいし、本変形例14にかかる接続端子109aのように、延伸部132の主面(第2接触部形成面)に設けた穴部1327に、上述した第2接触部128と同等の先端形状をなす第2接触部材128aを取り付けることによって接続端子109aを作製するものであってもよい。第2接触部材128aと穴部1327とは、変形例10と同様の手法により接合される。 (
FIG. 31 is a perspective view showing the connection terminals of the power module according to the
つぎに、本発明の実施の形態2について説明する。図32は、本実施の形態2にかかるパワーモジュールの構成を示す分解斜視図である。図33は、本実施の形態2にかかるパワーモジュールの要部の構成を示す分解斜視図であって、接続端子ホルダを除く構成を示す図である。図34は、本実施の形態2にかかるパワーモジュールの要部の構成を示す斜視図であって、接続端子と基板との構成を示す部分拡大図である。なお、図1等で上述した構成要素と同じ構成要素には同じ符号を付してある。 (Embodiment 2)
Next, a second embodiment of the present invention will be described. FIG. 32 is an exploded perspective view showing the configuration of the power module according to the second embodiment. FIG. 33 is an exploded perspective view illustrating a configuration of a main part of the power module according to the second embodiment, and illustrates a configuration excluding the connection terminal holder. FIG. 34 is a perspective view illustrating the configuration of the main part of the power module according to the second embodiment, and is a partially enlarged view illustrating the configuration of the connection terminal and the substrate. In addition, the same code | symbol is attached | subjected to the same component as the component mentioned above in FIG.
図37は、本発明の実施の形態2の変形例にかかるパワーモジュールの接続端子の要部の構成を示す斜視図である。上述した実施の形態2では、第2接触部129の主面が長手方向に沿って略弧状をなして延びるものとして説明したが、本変形例にかかる接続端子201の第2接触部129aのように、主面が長手方向に沿って略V字状をなして延びるものであってもよい。これにより、接続端子201(第2接触部129a)と接触面とを線接触させることができる。 (Modification of Embodiment 2)
FIG. 37 is a perspective view showing the configuration of the main part of the connection terminal of the power module according to the modification of the second embodiment of the present invention. In the second embodiment described above, the main surface of the
つぎに、本発明の実施の形態3について説明する。図38は、本実施の形態3にかかるパワーモジュールの構成を示す分解斜視図である。図39は、本実施の形態3にかかるパワーモジュールの要部の構成を示す分解斜視図であって、接続端子ホルダを除く構成を示す図である。図40は、本実施の形態3にかかるパワーモジュールの要部の構成を示す斜視図であって、接続端子と基板との構成を示す部分拡大図である。なお、図1等で上述した構成要素と同じ構成要素には同じ符号を付してある。 (Embodiment 3)
Next, a third embodiment of the present invention will be described. FIG. 38 is an exploded perspective view showing the configuration of the power module according to the third embodiment. FIG. 39 is an exploded perspective view showing the configuration of the main part of the power module according to the third embodiment, and shows the configuration excluding the connection terminal holder. FIG. 40 is a perspective view illustrating the configuration of the main part of the power module according to the third embodiment, and is a partially enlarged view illustrating the configuration of the connection terminal and the substrate. In addition, the same code | symbol is attached | subjected to the same component as the component mentioned above in FIG.
図43は、本実施の形態3の変形例1にかかるパワーモジュールの要部の構成を示す分解斜視図である。上述した実施の形態3では、接続端子202が平板部14によって基板30上で起立した状態を維持するものとして説明したが、基板30上に設けられる固定部材40によって接続端子202が基板30上に固定されるものであってもよい。 (
FIG. 43 is an exploded perspective view illustrating a configuration of a main part of the power module according to the first modification of the third embodiment. In
図44は、本実施の形態3の変形例2にかかるパワーモジュールの要部の構成を示す斜視図である。上述した実施の形態2では、第1接触部114が電極E上に配置されて電気的に接続するものとして説明したが、本変形例2のように、平板部14と電極EとをワイヤーWを介して電気的に接続するものであってもよい。このようにして、接続端子と電極とを公知の手法により間接的に接続するものであってもよい。この場合、平板部14は導電性を有する。 (
FIG. 44 is a perspective view illustrating a configuration of a main part of a power module according to the second modification of the third embodiment. In the second embodiment described above, the
つぎに、本発明の実施の形態4について説明する。図45は、本実施の形態4にかかる検査システムの概略構成を示す上面図である。図46は、本実施の形態4にかかる検査システムの概略構成を示す側面図である。図47は、本実施の形態4にかかる検査システムの概略構成を示す部分断面図である。図45~図47に示す検査システム500は、検査対象と電気的に接続して該検査対象の電力の入出力検査を行うものである。 (Embodiment 4)
Next, a fourth embodiment of the present invention will be described. FIG. 45 is a top view showing a schematic configuration of the inspection system according to the fourth embodiment. FIG. 46 is a side view illustrating a schematic configuration of the inspection system according to the fourth embodiment. FIG. 47 is a partial cross-sectional view illustrating a schematic configuration of the inspection system according to the fourth embodiment. The
図52は、本実施の形態4の変形例1にかかる電流供給ユニットの要部の構成を示す斜視図である。図53は、本実施の形態4の変形例1にかかる電流供給ユニットの要部の構成を示す斜視図である。図54は、本実施の形態4の変形例1にかかる電流供給ユニットの要部の構成を示す断面図である。図55は、本実施の形態4の変形例1にかかる電流供給ユニットの要部の構成を示す分解斜視図である。本変形例1にかかる電流供給ユニット520は、接続端子300を第1部材521に直接ネジ止めして固定する。 (
FIG. 52 is a perspective view illustrating a configuration of a main part of a current supply unit according to the first modification of the fourth embodiment. FIG. 53 is a perspective view illustrating a configuration of a main part of a current supply unit according to the first modification of the fourth embodiment. FIG. 54 is a cross-sectional view illustrating a configuration of a main part of a current supply unit according to the first modification of the fourth embodiment. FIG. 55 is an exploded perspective view showing the configuration of the main part of the current supply unit according to the first modification of the fourth embodiment. The
図56は、本実施の形態4の変形例2にかかる電流供給ユニットの要部の構成を示す斜視図である。図57は、本実施の形態4の変形例2にかかる電流供給ユニットの要部の構成を示す斜視図である。図58は、本実施の形態4の変形例2にかかる電流供給ユニットの要部の構成を示す断面図である。図59は、本実施の形態4の変形例2にかかる電流供給ユニットの要部の構成を示す分解斜視図である。本変形例2にかかる電流供給ユニット530は、接続端子300を第1部材531と、第2部材532または第3部材533とで挟み込んで固定する。 (
FIG. 56 is a perspective view illustrating a configuration of a main part of a current supply unit according to the second modification of the fourth embodiment. FIG. 57 is a perspective view illustrating a configuration of a main part of a current supply unit according to the second modification of the fourth embodiment. FIG. 58 is a cross-sectional view illustrating a configuration of a main part of a current supply unit according to the second modification of the fourth embodiment. FIG. 59 is an exploded perspective view showing the configuration of the main part of the current supply unit according to the second modification of the fourth embodiment. In the
図60は、本実施の形態4の変形例3にかかる電流供給ユニットの要部の構成を示す斜視図である。図61は、本実施の形態4の変形例3にかかる電流供給ユニットの要部の構成を示す斜視図である。図62は、本実施の形態4の変形例3にかかる電流供給ユニットの要部の構成を示す断面図である。図63は、本実施の形態4の変形例3にかかる電流供給ユニットの要部の構成を示す分解斜視図である。本変形例3にかかる電流供給ユニット540は、接続端子301を第1部材541に形成された穴部541aに圧入して固定する。 (
FIG. 60 is a perspective view illustrating a configuration of a main part of a current supply unit according to the third modification of the fourth embodiment. FIG. 61 is a perspective view illustrating a configuration of a main part of a current supply unit according to the third modification of the fourth embodiment. FIG. 62 is a cross-sectional view illustrating a configuration of a main part of a current supply unit according to the third modification of the fourth embodiment. FIG. 63 is an exploded perspective view showing the configuration of the main part of the current supply unit according to the third modification of the fourth embodiment. In the
10,100~107,107a,107b,108,108a,109,109a,200,201,202,300,301 接続端子
11,114,115 第1接触部
110 先端部
12,121~129,129a 第2接触部
13,13a,13b 接続部
14 平板部
20,20a 接続端子ホルダ
21 挿通孔
22 中空部
30 基板
40 固定部材
111 基部
112 挿入部
113 フランジ部
131 湾曲部
132 延伸部
500 検査システム
501 ベースユニット
502 保持ユニット
503 テストユニット
510 電流供給ユニット(通電ユニット)
511 第1部材
512 第2部材
513 バスバー 1, 1a, 1b,
511
Claims (9)
- 二つの接触対象間を電気的に接続する接続端子であって、
前記基板に設けられた電極と接触する第1接触部と、
前記外部の回路に設けられた電極と接触する第2接触部と、
両端部で前記第1および第2接触部と接続するとともに、一様な幅を有し、凹凸が逆の湾曲部分を繰り返したジグザグ状をなして延び、該延びる方向に沿って伸縮自在な接続部と、
を備え、
前記接続部を含んで前記ジグザグ状に延びる方向に延びる領域に前記第1および第2接触部を含むことを特徴とする接続端子。 A connection terminal for electrically connecting two contact objects,
A first contact portion in contact with an electrode provided on the substrate;
A second contact portion in contact with an electrode provided in the external circuit;
Connected to both the first and second contact portions at both ends, and has a uniform width, extends in a zigzag shape with repeated curved portions having reverse concavities and convexities, and can be expanded and contracted along the extending direction. And
With
A connection terminal comprising the first and second contact portions in a region including the connection portion and extending in a zigzag extending direction. - 前記第2接触部は、前記外部の回路に設けられた電極と接触する面が、弧状をなすことを特徴とする請求項1に記載の接続端子。 2. The connection terminal according to claim 1, wherein a surface of the second contact portion that contacts an electrode provided in the external circuit has an arc shape.
- 均一な板厚を有する帯状の部材を用いて形成されることを特徴とする請求項1または2に記載の接続端子。 The connection terminal according to claim 1, wherein the connection terminal is formed using a band-shaped member having a uniform plate thickness.
- 前記接続部は、
略板状をなして延びる複数の延伸部と、
前記複数の延伸部のうちの隣接する二つの延伸部を接続する湾曲形状をなす湾曲部と、
を有し、
前記延伸部の主面は、前記延びる方向と略直交することを特徴とする請求項1~3のいずれか一つに記載の接続端子。 The connecting portion is
A plurality of extending portions extending in a substantially plate shape;
A curved portion forming a curved shape connecting two adjacent stretched portions of the plurality of stretched portions, and
Have
The connection terminal according to any one of claims 1 to 3, wherein a main surface of the extending portion is substantially orthogonal to the extending direction. - 前記延伸部の中心をそれぞれ通過する直線は、前記第1および第2接触部をさらに通過することを特徴とする請求項4に記載の接続端子。 5. The connection terminal according to claim 4, wherein straight lines respectively passing through the centers of the extending portions further pass through the first and second contact portions.
- 前記第1接触部は、略帯状をなし、
前記基板に設けられた保持孔の内部壁面に摺接して挿入される挿入部と、
長手方向と直交する幅方向の長さが前記保持孔の径より大きいフランジ部と、
を有することを特徴とする請求項1~5のいずれか一つに記載の接続端子。 The first contact portion has a substantially band shape,
An insertion portion inserted in sliding contact with the inner wall surface of the holding hole provided in the substrate;
A flange portion whose length in the width direction perpendicular to the longitudinal direction is larger than the diameter of the holding hole;
6. The connection terminal according to claim 1, wherein - 前記第1接触部から平板状をなして延びる平板部をさらに備えたことを特徴とする請求項1~5のいずれか一つに記載の接続端子。 The connection terminal according to any one of claims 1 to 5, further comprising a flat plate portion extending in a flat plate shape from the first contact portion.
- 半導体素子と、
前記半導体素子を実装する基板と、
前記基板に設けられた電極と接触する第1接触部と、外部の回路に設けられた電極と接触する第2接触部と、両端部で前記第1および第2接触部と接続するとともに、一様な幅を有し、凹凸が逆の湾曲部分を繰り返したジグザグ状をなして延び、該延びる方向に沿って伸縮自在な接続部と、を有し、前記接続部を含んで前記ジグザグ状に延びる方向に延びる領域に前記第1および第2接触部を含み、前記外部の回路と前記基板とを電気的に常時接続する複数の接続端子と、
を備え、
前記複数の接続端子のうち、前記接続端子の前記接続部の幅方向を揃えて並べて配置される接続端子は、隣接する接続端子を前記幅方向からみたときに、前記接続部の前記ジグザグ状のパターンが逆であることを特徴とするパワーモジュール。 A semiconductor element;
A substrate on which the semiconductor element is mounted;
The first contact portion that contacts the electrode provided on the substrate, the second contact portion that contacts the electrode provided on the external circuit, and the first and second contact portions at both ends are connected to each other. And a connecting portion that extends in a zigzag shape in which the curved portion having the opposite concave and convex portions is reversed and is stretchable along the extending direction, and includes the connecting portion in the zigzag shape. A plurality of connection terminals including the first and second contact portions in a region extending in the extending direction and electrically always connecting the external circuit and the substrate;
With
Among the plurality of connection terminals, the connection terminals arranged side by side in the width direction of the connection portions of the connection terminals are formed in the zigzag shape of the connection portions when the adjacent connection terminals are viewed from the width direction. A power module characterized in that the pattern is reversed. - 検査対象と、該給電用および検査用の信号を出力する制御ユニットとを電気的に接続し、前記給電用の信号または前記検査用の信号を通電する通電ユニットであって、
導電性を有する複数の接続端子と、
導電性を有し、前記複数の接続端子を保持する筐体と、
前記筐体に取り付けられる導電性のバスバーと、
前記筐体に対して前記複数の接続端子を固定する固定手段と、
を備え、
前記接続端子は、前記筐体と接触する第1接触部と、前記検査対象に設けられた電極と接触する第2接触部と、両端部で前記第1および第2接触部と接続するとともに、一様な幅を有し、凹凸が逆の湾曲部分を繰り返したジグザグ状をなして延び、該延びる方向に沿って伸縮自在な接続部と、を有し、前記接続部を含んで前記ジグザグ状に延びる方向に延びる領域に前記第1および第2接触部を含み、
前記検査対象を検査する際、前記検査対象から所定の荷重が加わった場合に前記検査対象と前記筐体とは非接触状態であることを特徴とする通電ユニット。 An electrical connection unit that electrically connects an inspection target and a control unit that outputs the power supply and inspection signals, and energizes the power supply signal or the inspection signal,
A plurality of conductive connection terminals;
A housing having conductivity and holding the plurality of connection terminals;
A conductive bus bar attached to the housing;
Fixing means for fixing the plurality of connection terminals to the housing;
With
The connection terminal is connected to the first and second contact portions at both ends, a first contact portion that contacts the housing, a second contact portion that contacts an electrode provided on the inspection target, A zigzag shape having a uniform width, extending in a zigzag shape with repeated curved portions having opposite concavities and convexities, and extending and contracting along the extending direction, and including the connection portion. Including the first and second contact portions in a region extending in a direction extending to
When inspecting the inspection object, the inspection object and the housing are in a non-contact state when a predetermined load is applied from the inspection object.
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JP2015530966A JPWO2015020176A1 (en) | 2013-08-09 | 2014-08-07 | Energizing unit |
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JP2013-167081 | 2013-08-09 | ||
JP2013167081 | 2013-08-09 |
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WO (1) | WO2015020176A1 (en) |
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WO2019007625A1 (en) * | 2017-07-04 | 2019-01-10 | Siemens Aktiengesellschaft | Power module having a semiconductor carrier element to be electrically contacted at the top and/or the bottom, and at least one surface-mounted electrical contacting element |
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JPWO2015020176A1 (en) | 2017-03-02 |
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