WO2015064572A1 - 押圧構造及び押圧ユニット - Google Patents
押圧構造及び押圧ユニット Download PDFInfo
- Publication number
- WO2015064572A1 WO2015064572A1 PCT/JP2014/078631 JP2014078631W WO2015064572A1 WO 2015064572 A1 WO2015064572 A1 WO 2015064572A1 JP 2014078631 W JP2014078631 W JP 2014078631W WO 2015064572 A1 WO2015064572 A1 WO 2015064572A1
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- spring member
- pressed body
- pressing structure
- spring
- pressed
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K7/00—Constructional details common to different types of electric apparatus
- H05K7/20—Modifications to facilitate cooling, ventilating, or heating
- H05K7/2039—Modifications to facilitate cooling, ventilating, or heating characterised by the heat transfer by conduction from the heat generating element to a dissipating body
- H05K7/20436—Inner thermal coupling elements in heat dissipating housings, e.g. protrusions or depressions integrally formed in the housing
- H05K7/2049—Pressing means used to urge contact, e.g. springs
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F1/00—Springs
- F16F1/02—Springs made of steel or other material having low internal friction; Wound, torsion, leaf, cup, ring or the like springs, the material of the spring not being relevant
- F16F1/18—Leaf springs
- F16F1/185—Leaf springs characterised by shape or design of individual leaves
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F3/00—Spring units consisting of several springs, e.g. for obtaining a desired spring characteristic
- F16F3/02—Spring units consisting of several springs, e.g. for obtaining a desired spring characteristic with springs made of steel or of other material having low internal friction
- F16F3/023—Spring units consisting of several springs, e.g. for obtaining a desired spring characteristic with springs made of steel or of other material having low internal friction composed only of leaf springs
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L23/00—Details of semiconductor or other solid state devices
- H01L23/34—Arrangements for cooling, heating, ventilating or temperature compensation ; Temperature sensing arrangements
- H01L23/36—Selection of materials, or shaping, to facilitate cooling or heating, e.g. heatsinks
- H01L23/367—Cooling facilitated by shape of device
- H01L23/3675—Cooling facilitated by shape of device characterised by the shape of the housing
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L23/00—Details of semiconductor or other solid state devices
- H01L23/34—Arrangements for cooling, heating, ventilating or temperature compensation ; Temperature sensing arrangements
- H01L23/40—Mountings or securing means for detachable cooling or heating arrangements ; fixed by friction, plugs or springs
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L23/00—Details of semiconductor or other solid state devices
- H01L23/34—Arrangements for cooling, heating, ventilating or temperature compensation ; Temperature sensing arrangements
- H01L23/40—Mountings or securing means for detachable cooling or heating arrangements ; fixed by friction, plugs or springs
- H01L23/4006—Mountings or securing means for detachable cooling or heating arrangements ; fixed by friction, plugs or springs with bolts or screws
- H01L23/4012—Mountings or securing means for detachable cooling or heating arrangements ; fixed by friction, plugs or springs with bolts or screws for stacked arrangements of a plurality of semiconductor devices
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L23/00—Details of semiconductor or other solid state devices
- H01L23/34—Arrangements for cooling, heating, ventilating or temperature compensation ; Temperature sensing arrangements
- H01L23/46—Arrangements for cooling, heating, ventilating or temperature compensation ; Temperature sensing arrangements involving the transfer of heat by flowing fluids
- H01L23/473—Arrangements for cooling, heating, ventilating or temperature compensation ; Temperature sensing arrangements involving the transfer of heat by flowing fluids by flowing liquids
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L25/00—Assemblies consisting of a plurality of individual semiconductor or other solid state devices ; Multistep manufacturing processes thereof
- H01L25/03—Assemblies consisting of a plurality of individual semiconductor or other solid state devices ; Multistep manufacturing processes thereof all the devices being of a type provided for in the same subgroup of groups H01L27/00 - H01L33/00, or in a single subclass of H10K, H10N, e.g. assemblies of rectifier diodes
- H01L25/10—Assemblies consisting of a plurality of individual semiconductor or other solid state devices ; Multistep manufacturing processes thereof all the devices being of a type provided for in the same subgroup of groups H01L27/00 - H01L33/00, or in a single subclass of H10K, H10N, e.g. assemblies of rectifier diodes the devices having separate containers
- H01L25/105—Assemblies consisting of a plurality of individual semiconductor or other solid state devices ; Multistep manufacturing processes thereof all the devices being of a type provided for in the same subgroup of groups H01L27/00 - H01L33/00, or in a single subclass of H10K, H10N, e.g. assemblies of rectifier diodes the devices having separate containers the devices being of a type provided for in group H01L27/00
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L23/00—Details of semiconductor or other solid state devices
- H01L23/34—Arrangements for cooling, heating, ventilating or temperature compensation ; Temperature sensing arrangements
- H01L23/40—Mountings or securing means for detachable cooling or heating arrangements ; fixed by friction, plugs or springs
- H01L23/4006—Mountings or securing means for detachable cooling or heating arrangements ; fixed by friction, plugs or springs with bolts or screws
- H01L2023/4037—Mountings or securing means for detachable cooling or heating arrangements ; fixed by friction, plugs or springs with bolts or screws characterised by thermal path or place of attachment of heatsink
- H01L2023/4068—Heatconductors between device and heatsink, e.g. compliant heat-spreaders, heat-conducting bands
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L2225/00—Details relating to assemblies covered by the group H01L25/00 but not provided for in its subgroups
- H01L2225/03—All the devices being of a type provided for in the same subgroup of groups H01L27/00 - H01L33/648 and H10K99/00
- H01L2225/10—All the devices being of a type provided for in the same subgroup of groups H01L27/00 - H01L33/648 and H10K99/00 the devices having separate containers
- H01L2225/1005—All the devices being of a type provided for in the same subgroup of groups H01L27/00 - H01L33/648 and H10K99/00 the devices having separate containers the devices being of a type provided for in group H01L27/00
- H01L2225/1011—All the devices being of a type provided for in the same subgroup of groups H01L27/00 - H01L33/648 and H10K99/00 the devices having separate containers the devices being of a type provided for in group H01L27/00 the containers being in a stacked arrangement
- H01L2225/1094—Thermal management, e.g. cooling
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L2924/00—Indexing scheme for arrangements or methods for connecting or disconnecting semiconductor or solid-state bodies as covered by H01L24/00
- H01L2924/0001—Technical content checked by a classifier
- H01L2924/0002—Not covered by any one of groups H01L24/00, H01L24/00 and H01L2224/00
Definitions
- the present invention relates to a pressing structure and a pressing unit.
- a pressing structure that is installed between a first pressed body and a second pressed body and presses one or both of them.
- the pressing structure is used in various devices. For example, in a unit that requires cooling, a technique is known in which a plurality of leaf springs are arranged in close contact with a heat sink using a pressing structure (see, for example, Patent Document 1).
- FIG. 18A is a plan view showing an example of arrangement of leaf springs in a conventional pressing structure.
- FIG. 18B is a side view of a pressing unit using the conventional pressing structure shown in FIG. 18A.
- the conventional pressing structure 500 is configured by arranging a plurality of leaf springs 501 side by side so that their longitudinal directions are parallel to each other. As shown in FIG. 18B, the pressing structure 500 is disposed between the first pressed body 502 and the second pressed body 503, and applies pressure to both members or one of them.
- the leaf spring 501 connects the center portion that contacts the first pressed body 502, the end portions that each slidably contact the second pressed body 503, and the center portion and the respective end portions. And an arm portion that is bent or bent so as to face each other.
- the pressurizing region PP for applying pressure to the first pressed body 502 that is a pressed member is located at the center of the leaf spring 501 as shown in FIGS. 18A and 18B.
- the conventional pressing structure 500 is arranged so that all the center portions of the plurality of leaf springs 501 are in contact with the first pressed body 502, and the surface pressure distribution is the first pressed pressure. It concentrates only on the center part of the body 502, and a bias
- the present invention has been made in view of the above, and an object of the present invention is to provide a pressing structure that can make the surface pressure distribution uniform and a pressing unit using the pressing structure.
- a pressing structure is provided between a first pressed body and a second pressed body disposed to face the first pressed body.
- a pressing structure that applies pressure to the first pressed body and the second pressed body, each having a central portion that contacts the first pressed body and each of the second pressed bodies.
- a first spring member having two end portions that contact the pressed body and two arm portions each extending from the central portion toward the different end portions, and the second pressed portion A central portion that contacts the body; two end portions that each contact the first pressed body; and two arm portions that each extend from the central portion toward the different end portions.
- a second spring member is provided between a first pressed body and a second pressed body disposed to face the first pressed body.
- the pressing structure according to the present invention is characterized in that, in the above invention, the first spring members and the second spring members are alternately arranged in the width direction.
- the first spring member and the second spring member partially overlap each other in the central portion when viewed from the first or second pressed body.
- the first spring member and the second spring member have shapes that do not interfere with each other at least when no load is applied to the arm portion.
- each of the first spring member and the second spring member has a portion having a width narrower than a width of the central portion in the arm portion. To do.
- the pressing structure according to the present invention is characterized in that, in the above invention, the first spring member and the second spring member each have a shape in which the width of the arm portion decreases from the central portion to the end portion.
- the pressing structure according to the present invention is characterized in that, in the above invention, the first spring member and the second spring member have the same shape.
- the pressing structure according to the present invention is characterized in that, in the above invention, the pressing structure further includes positioning means for positioning the first spring member and the second spring member.
- the positioning means is inserted into a space formed between the central portion of the first spring member and the central portion of the second spring member. It is characterized by that.
- the pressing unit according to the present invention includes a first pressed body, a second pressed body disposed opposite to the first pressed body, the first pressed body, and the second pressed body. And a pressing structure that is arranged between the body and applies pressure to the first pressed body and the second pressed body.
- FIG. 1 is a side view schematically showing a pressing unit using the pressing structure according to Embodiment 1 of the present invention.
- 2A is a plan view of the pressing structure shown in FIG.
- FIG. 2B is a side view of the pressing structure shown in FIG. 1.
- FIG. 3A is a plan view schematically showing an arrangement area when only one spring member is used.
- FIG. 3B is a plan view schematically showing an arrangement area when five spring members according to Embodiment 1 are arranged.
- FIG. 4 is a side view schematically showing a pressing unit using the pressing structure according to the second embodiment of the present invention.
- FIG. 5 is a perspective view of a first pressed body according to Embodiment 2 of the present invention.
- FIG. 6A is a perspective view of a state in which the pressing structure shown in FIG. 4 is installed on a first pressed body.
- FIG. 6B is a cross-sectional view taken along the line AA in a state where the pressing structure shown in FIG. 6A is installed on the first pressed body.
- FIG. 7A is a perspective view of a spring member according to Embodiment 2 of the present invention. 7B is a plan view of the spring member shown in FIG.
- FIG. 7C is a side view of the spring member shown in FIG.
- FIG. 8A is a plan view and a side view showing a position where the first spring member and the second spring member interfere with each other at the time of attachment.
- FIG. 8B is a plan view and a side view illustrating a position where the first spring member and the second spring member interfere with each other during deflection.
- FIG. 9A is a plan view for explaining a condition in which the first spring member and the second spring member do not interfere with each other.
- FIG. 9B is a plan view for explaining a condition in which the first spring member and the second spring member do not interfere with each other.
- FIG. 10 is a plan view schematically showing an arrangement area when nine spring members are arranged in the second embodiment.
- FIG. 11 is a plan view showing the shape of the spring member according to the modification of the second embodiment of the present invention in a top view.
- FIG. 12 is a side view schematically showing a pressing unit using the pressing structure according to the third embodiment.
- FIG. 13 is a perspective view of a positioning tube according to the third embodiment.
- FIG. 14 is a perspective view of the pressing structure according to the third embodiment.
- FIG. 15A is a plan view of the pressing structure according to Embodiment 3 as viewed from above.
- FIG. 15B is a side view of the pressing structure according to Embodiment 3.
- FIG. 16 is a schematic diagram illustrating a configuration of a main part of the power conversion device according to the fourth embodiment of the present invention.
- FIG. 17 is a schematic diagram showing a configuration of a main part of the electric double layer capacitor according to the fifth embodiment of the present invention.
- FIG. 18A is a plan view showing an arrangement example of leaf springs in a conventional pressing structure.
- FIG. 18B is a side view of a pressing unit using the conventional pressing structure shown in FIG. 18A.
- FIG. 1 is a side view schematically showing a pressing unit using the pressing structure according to Embodiment 1 of the present invention.
- 2A is a plan view of the pressing structure shown in FIG.
- FIG. 2B is a side view of the pressing structure shown in FIG. 1.
- the pressing structure 100 according to the first embodiment of the present invention is configured by alternately arranging the first spring members 1 and the second spring members 2 in the width direction.
- the pressing structure 100 is disposed between the first pressed body 101 and the second pressed body 102 facing each other.
- the pressing structure 100 applies pressure to both the first pressed body 101 and the second pressed body 102 by the elastic force of the first spring member 1 and the second spring member 2.
- One of the first pressed body 101 and the second pressed body 102 maintains a predetermined interval between the first spring member 1 and the second spring member 2, and the first spring member 1.
- a second spring member 2 are provided with positioning means for preventing displacement in the width direction.
- a positioning means a positioning projection is provided on one of the first pressed body 101 and the second pressed body 102, and a groove for fitting the projection into the first spring member 1 and the second spring member 2 is provided.
- the first spring member 1 and the second spring member 2 may be provided with an equally spaced rib on either the first pressed body 101 or the second pressed body 102. May be arranged. Further, positioning means according to Embodiment 2 or Embodiment 3 to be described later can also be used.
- the first spring member 1 is a leaf spring formed using, for example, a metal material such as spring steel or a resin material.
- the first spring member 1 includes a central portion 11 that contacts the first pressed body 101, two end portions 13 that each slidably contact the second pressed body 102, and the central portion 11. And two arm portions 12 that extend toward the different end portions 13 and connect the central portion 11 and the end portion 13 to each other.
- the first spring member 1 has a rectangular shape in which the width of the central portion 11, the arm portion 12, and both end portions 13 is uniform when viewed from the top surface, and when viewed from the side surface, the arm portions 12 face each other around the central portion 11. The shape is curved or bent.
- the first spring member 1 has the highest spring height at the contact point (pressure region PP) with the second pressed body 102 at both ends 13, and the first spring member 1 has the same height as the first pressed body 101 at the center 11. This is the lowest shape at the contact point (pressure region PP).
- the pressurizing region PP for applying pressure to the first pressed body 101 is located in the central portion 11 of the first spring member 1 as shown in FIGS. 2A and 2B. Further, the pressurizing region PP for applying pressure to the second pressed body 102 is located at the end 13 of the first spring member 1.
- the second spring member 2 is made of the same material as the first spring member 1 and has the same shape.
- the second spring member 2 is arranged in a direction in which the first spring member 1 is turned upside down (a direction in which the direction of bending is reversed).
- the arrangement of the first spring member 1 is referred to as upward
- the arrangement of the second spring member 2 is referred to as downward. Since the second spring member 2 is disposed downward, the pressurizing region PP for applying pressure to the first pressed body 101 is formed at both ends of the second spring member 2 as shown in FIGS. 2A and 2B. Located in section 23. Further, the pressurizing region PP for applying pressure to the second pressed body 102 is located at the central portion 21 of the second spring member 2.
- the upward first spring members 1 and the downward second spring members 2 are alternately arranged in the width direction.
- the first spring member 1 and the second spring member 2 are actually arranged at a predetermined interval (clearance ⁇ ) as shown in FIG. 3B.
- the upward first spring member 1 and the downward second spring member 2 do not necessarily have to be alternately arranged one by one.
- two each of the spring members may be arranged alternately.
- the number and arrangement of the respective spring members can be appropriately changed so that a desired surface pressure distribution can be obtained by arranging the numbers differently.
- the pressure region PP for the first pressed body 101 by the first spring member 1 is located at the center of the first pressed body 101, while the first pressed body by the second spring member 2.
- the pressurizing area PP for 101 is located at both ends of the first pressed body 101.
- the pressurizing regions PP for the second pressed body 102 by the first spring member 1 are located at both ends of the second pressed body 102, while the second pressed body 102 by the second spring member 2.
- the pressing area for the pressing body 102 is located at the center of the second pressed body 102.
- the upward first spring member 1 and the downward second spring member 2 are alternately arranged in the width direction, whereby the first pressed member 101 and the second pressed member 102 are pressed.
- the pressure region PP is dispersed at the center and both ends, and the surface pressure distribution is made uniform.
- variety of the 1st spring member 1 and the 2nd spring member 2 is made narrow, the number of the 1st spring members 1 and the 2nd spring members 2 is increased, and the space
- the uniformity of the surface pressure distribution can be further improved.
- the first spring member 1 and the second spring member 2 are narrowed to increase the number of spring members in the same area (number of divisions), thereby further improving the uniformity of the surface pressure distribution. Can be increased.
- the plurality of spring members 1 and 2 are arranged side by side, it is necessary to provide a predetermined interval (clearance ⁇ ) between adjacent spring members. Therefore, when the number of spring members 1 and 2 (the number of divisions) is increased, the total value of the clearance ⁇ increases, and the load per unit area in the pressing structure 100 in which the plurality of spring members 1 and 2 are arranged decreases.
- FIG. 3A is a plan view schematically showing an arrangement area when only one spring member is used.
- the width of the pressing structure in this case, equal to the width of the spring member 1
- the total length of the pressing structure is L
- the arrangement area S of the spring member 1 in this pressing structure 1 is obtained by the following equation (1).
- S 1 L ⁇ B 1 (1)
- the load P 1 per unit area, when the spring load of the entire pressing structure was F 0, obtained from the following equation (2).
- P 1 F 0 / S 1 (2)
- FIG. 3B is a plan view schematically showing an arrangement area when five spring members according to Embodiment 1 are arranged.
- the three first spring members 1 and the two second spring members 2 are alternately arranged in the width direction.
- a predetermined interval (clearance ⁇ ) is provided between the first spring member 1 and the second spring member 2.
- the number of divisions is 10
- the five first spring members 1 and the five second spring members 2 are alternately arranged in the width direction
- the number of contact areas can be increased. Therefore, the surface pressure distribution can be made more uniform, but the load per unit area is further reduced as shown below.
- the width of each of the first spring member 1 and the second spring member 2 is 10 mm and the clearance ⁇ is 0.4 mm
- the load per unit area P 2 [N / mm 2 ] is found to be about 0.97 [N / mm 2 ] according to the following equation (5).
- the first spring member 1 and the second spring members 2 are alternately arranged in the width direction as in the first embodiment, the first spring member 1 and the second spring member are used.
- a clearance ⁇ is required between the two. Therefore, when the spring member is not divided (when the pressing structure is constituted by one spring member), the load P 1 per unit area is 1.00 [N / mm 2 ], In the example of five divisions shown in FIG. 3B, the surface pressure distribution can be made uniform, but the load P 2 per unit area is reduced to 0.98 [N / mm 2 ]. Although the surface pressure distribution can be made more uniform in 10 divisions than in 5 divisions, the load P 2 [N / mm 2 ] per unit area is further reduced to about 0.97 [ N / mm 2 ].
- the surface pressure distribution can be made uniform, but the load per unit area is reduced. Therefore, in the second embodiment, the surface pressure distribution is made uniform without increasing the number of spring members arranged in the same area and reducing the load per unit area.
- FIG. 4 is a side view schematically showing a pressing unit using the pressing structure according to the second embodiment of the present invention.
- FIG. 5 is a perspective view of a first pressed body according to Embodiment 2 of the present invention.
- FIG. 6A is a perspective view of a state in which the pressing structure shown in FIG. 4 is installed on a first pressed body.
- FIG. 6B is a cross-sectional view taken along the line AA in a state where the pressing structure shown in FIG. 6A is installed on the first pressed body.
- FIG. 7A is a perspective view of a spring member according to Embodiment 2 of the present invention.
- 7B is a plan view of the spring member shown in FIG.
- FIG. 7C is a side view of the spring member shown in FIG.
- the pressing unit according to the second embodiment of the present invention is configured by disposing a pressing structure 200 between a first pressed body 201 and a second pressed body 102 facing each other, as shown in FIG.
- the pressing structure 200 applies pressure to both the first pressed body 201 and the second pressed body 102 by the elastic force of the first spring member 3 and the second spring member 4.
- the first pressed body 201 maintains a predetermined distance between the first spring member 3 and the second spring member 4, and the first spring member 3 and the second spring.
- Positioning grooves 201a and 201b are provided as positioning means for preventing the member 4 from shifting in the width direction.
- the positioning grooves 201 a and 201 b may be provided on the second pressed body 102.
- the positioning groove 201a is a groove having a predetermined depth, and the end of the second spring member 4 on the surface of the first pressed body 201 facing the second pressed body 102. It is formed in a region where the portion 43 abuts.
- the positioning groove 201a is set to a size that allows the end 43 of the second spring member 4 to slide in the longitudinal direction within the positioning groove 201a.
- the positioning groove 201b is a groove having a predetermined depth, and the center of the first spring member 3 on the surface of the first pressed body 201 facing the second pressed body 102. It is formed in a region where the portion 31 abuts.
- the positioning groove 201b is set to a size that allows the central portion 31 of the first spring member 3 to be fitted into the positioning groove 201b.
- the pressing structure 200 is configured so that the first spring member 3 and the second spring member 4 are alternately arranged in the width direction so that the central portions 31 and 41 partially overlap in a top view. It is configured by arranging.
- the first spring member 3 is a leaf spring formed using, for example, a metal material such as spring steel or a resin material.
- the first spring member 3 includes a central portion 31 that comes into contact with the first pressed body 201, and an end portion that slidably contacts the second pressed body 102, respectively. 33 and two arm portions 32 that extend from the central portion 31 toward different end portions 33 and connect the central portion 31 and the end portion 33.
- the central portion 31 of the first spring member 3 has the largest width and forms a quadrangle, and the arm portion 32 continuously increases in width from the boundary portion with the central portion 31 to the boundary portion with the end portion 33.
- An isosceles trapezoidal shape having a minimum width at the boundary portion with the end portion 33 or having a vertex at the end portion 33 with the boundary with the central portion 31 as a base, and an apex angle portion at the boundary portion with the end portion 33 It has a cut isosceles triangle shape.
- the end portion 33 has a width equivalent to that of the central portion 31. Since the central portion 31 and the end portion 33 have the same width and the arm portion 32 decreases in width from the central portion 31 to the end portion 33, a constricted portion is generated at the boundary portion between the arm portion 32 and the end portion 33.
- the width of the arm portion 32 of the first spring member 3 is such that the arm portion 42 of the second spring member 4 is partially overlapped when viewed from the top, and is bent by applying a predetermined load (assumed). It is set so as not to interfere even when a load is applied.
- the width of the arm portion 32 will be described later.
- the first spring member 3 when viewed from the side, has a shape that is bent or bent around the central portion 31 so that the arm portions 32 face each other. That is, the first spring member 3 has the highest spring height at the contact point with the second pressed body 102 at both end portions 33, and at the contact point with the first pressed body 201 at the central portion 31. It has the lowest shape.
- the pressurizing region for applying pressure to the first pressed body 201 that is a member to be pressed is located at the central portion 31 of the first spring member 3, similarly to the first spring member 1 of the first embodiment. .
- the second spring member 4 is a leaf spring formed using, for example, a metal material such as spring steel or a resin material. As shown in FIGS. 4 and 6B, a central portion 41 that contacts the second pressed body 102, an end portion 43 that slidably contacts the first pressed body 201, and a central portion 41, respectively. And two arm portions 42 that extend toward different end portions 43 and connect the central portion 41 and the end portion 43 to each other.
- the second spring member 4 has the same shape as the first spring member 3, and the central portions 31 and 41 partially overlap each other when the first spring member 3 and the second spring member 4 are viewed from above. In addition, when alternately arranged in the width direction, the region that interferes with the arm portion 32 of the first spring member 3 is removed.
- a pressurizing region for applying pressure to the first pressed body 201 that is a member to be pressed is located at both end portions 43 of the second spring member 4, similarly to the second spring member 2 of the first embodiment. .
- the second spring member 4 is arranged in a direction in which the first spring member 3 is turned upside down (a direction in which the direction of bending is reversed). Since the second spring member 4 is disposed downward, a pressurizing region for applying pressure to the first pressed body 201 that is a pressed member is the same as the second spring member 2 of the first embodiment. The second spring member 4 is positioned at both end portions 43 of the second spring member 4.
- FIG. 8A is a plan view and a side view showing a position where the first spring member and the second spring member interfere with each other at the time of attachment.
- FIG. 8B is a plan view and a side view illustrating a position where the first spring member and the second spring member interfere with each other during deflection.
- the location where the adjacent first and second spring members 3 and 4 can interfere with each other in the arm portions 32 and 42 is the spring height H of the first and second spring members 3 and 4. Is a place where becomes 1/2.
- the first spring member 3 or the second spring member 4 at the place (H / 2) where the spring height H is 1 ⁇ 2 at the time of attachment (when no load is applied).
- L be the distance from the center in the longitudinal direction.
- the width of the plate of the first spring member 3 or the second spring member 4 at the distance L is defined as a width B.
- the distance from the center of the second spring member 4 in the longitudinal direction is L ′.
- the distance L ′ is always larger than the distance L. Therefore, in order not to interfere during bending, the plate width B ′ of the first spring member 3 and the second spring member 4 is set to a predetermined value (width B) at least at a point farther from the distance L from the center in the longitudinal direction. It can be made smaller.
- the plate widths of the first spring member 3 and the second spring member 4 are made thinner than a predetermined value (width B).
- FIG. 9A and FIG. 9B are plan views for explaining conditions where the first spring member and the second spring member do not interfere with each other.
- the plate width of the central portion 31 of the first spring member 3 is T ′
- the plate width of the end portion 33 is T
- the spring height H of the first spring member 3 is 1/2.
- a place where the plate width of the central portion 41 of the second spring member 4 is T ′, the plate width of the end portion 43 is T, and the spring height H of the second spring member 4 is 1 ⁇ 2, That is, the plate width of the arm portion 42 at the distance L shown in FIGS.
- a shift amount (pitch) between the center C3 of the second spring member 4 and the center C4 in the width direction of the second spring member 4 is A.
- the width B must be smaller than the shift amount A (B ⁇ A).
- 1/2 of the plate width T of the end portions 33 and 43 must be smaller than the shift amount A (T / 2 ⁇ A).
- 1 ⁇ 2 of the plate width T ′ of the central portions 31 and 41 must be smaller than the shift amount A (T ′ / 2 ⁇ A).
- the arm portions 32 and 42 are shaped so that the width decreases linearly from the central portion toward the end portion as shown in FIG.
- the plate widths of the first spring member 3 and the second spring member 4 are made smaller than the shift amount A.
- the arm portions 32 and 42 are not limited to a shape in which the width linearly decreases from the center portion toward the end portion, and the plate width B ′ is a width between the distance L and the distance L ′. Any shape that is smaller than or equal to B (smaller than the deviation A) is acceptable.
- the arm portions 32 and 42 may have a shape in which the width decreases in a curved manner from the central portion toward the end portions 33 and 43, or the width L is equal to or less than the distance B from the distance L to the distance L ′.
- the plate width may increase again between the end portions 33 and 43.
- FIG. 10 is a plan view schematically showing an arrangement area when nine spring members according to the second embodiment are arranged.
- the four first spring members 3 and the five second spring members 4 are alternately arranged in the width direction so as to partially overlap in a top view.
- a predetermined interval (clearance ⁇ ) is provided between the first spring member 3 and the second spring member 4.
- the load P 3 [N / mm 2 ] per unit area is It can be seen from the following formula (6) that it is 1.77 [N / mm 2 ].
- the load P 1 per unit area was 1.00 [N / mm 2 ].
- the pressing structure 200 shown in FIG. 10 the load P 3 per unit area is significantly improved and 1.77 [N / mm 2] in the area substantially equal.
- the load P 3 per unit area without decreasing the load P 3 per unit area, it is understood that it is possible to achieve uniform surface pressure.
- the load P 2 per unit area is 0.98 [N / mm 2 ].
- the load P 3 per unit area is significantly improved to 1.77 [N / mm 2 ].
- the number of spring members is increased from 5 to 9 as compared with the example shown in FIG. 3B, the number of pressurizing regions is also increased, and the surface pressure is more uniform as compared with the first embodiment. We were able to plan. Therefore, the pressing structure 200, without decreasing the load P 3 per unit area, it is understood that it is possible to achieve uniform surface pressure.
- the pressing structure 200 has a width so that the upward first spring member 3 and the downward second spring member 4 overlap in a top view. It is configured by alternately arranging in the direction. Therefore, the pressurizing regions for the first pressed body 201 and the second pressed body 102 are dispersed at the center and both ends, and the surface pressure distribution is made uniform. Further, since the upward first spring member 3 and the downward second spring member 4 are arranged so that a part thereof (a part of the central portions 31 and 41 having the maximum width) overlaps in a top view, The number of spring members arranged in the same area can be increased, and a decrease in spring load per unit area can be prevented.
- FIG. 11 is a plan view showing the shape of the spring member according to the modification of the second embodiment of the present invention in a top view.
- the spring member 5 according to the modification of the second embodiment can be used as the first spring member 3 or the second spring member 4 in the second embodiment.
- the first spring member 3 and the second spring member 4 according to the second embodiment are provided with the widths of the end portion 33 and the end portion 43 in order to avoid damage to the first pressed body 201 or the second pressed body 102. Is equal to the width of the central portion 31 and the central portion 41, and the pressure per unit area on the contact surface between the end portion 33 and the end portion 43 and the first pressed body 201 or the second pressed body 102 is reduced. However, in the case where the first pressed body 201 or the second pressed body 102 is robust, this is not necessary, and as in the end portion 53 of the spring member 5 according to the modification of the second embodiment.
- the width of the end portion 53 can be made narrower than the width of the central portion 51.
- the width of the end portion 53 is set to be equal to the portion where the width of the arm portion 52 is the narrowest (the boundary portion with the end portion 53).
- the widths of the end portion 33 and the end portion 43 are equal to the widths of the center portion 31 and the center portion 41 as in the second embodiment, the first spring member 3 and the second spring member 3 are assembled when the pressing structure 200 is assembled.
- the spring members 4 any one of the first spring member 3 and the second spring member 4 is used as the spring member 5 according to the modification of the second embodiment, and the end portion 53.
- the width of the arm portion 52 is made equal to the portion where the width of the arm portion 52 is the narrowest (the boundary portion with the end portion 53), the spring member 5 can be disposed through the gap after all the other spring members are disposed. Thus, the pressing structure can be easily assembled.
- An end member made of a separate metal or resin material may be attached to the end 53 of the spring member 5 having the shape shown in FIG.
- the end member has, for example, the same shape as the end 33 of the first spring member 3 of the second embodiment.
- positioning grooves 201a and 201b are provided on the first pressed body 201 or the second pressed body 102 side.
- a positioning tube is used as positioning means.
- the first spring member 6 and the second spring member 7 used in the third embodiment are members equivalent to the first spring member 3 and the second spring member 4 according to the second embodiment, respectively. Description is omitted. Further, any one of the first spring member 6 and the second spring member 7 may be the spring member 5 according to the modification of the second embodiment.
- FIG. 12 is a side view schematically showing a pressing unit using the pressing structure according to the third embodiment.
- FIG. 13 is a perspective view of a positioning tube according to the third embodiment.
- FIG. 14 is a perspective view of the pressing structure according to the third embodiment.
- FIG. 15A is a plan view of the pressing structure according to Embodiment 3 as viewed from above.
- FIG. 15B is a side view of the pressing structure according to Embodiment 3.
- the pressing unit according to the third embodiment of the present invention is configured by arranging a pressing structure 300 between a first pressed body 301 and a second pressed body 102 facing each other, as shown in FIG.
- the pressing structure 300 applies pressure to both the first pressed body 301 and the second pressed body 102 by the elastic force of the first spring member 6 and the second spring member 7.
- the positioning tube 8 is a tubular member formed of, for example, a rubber material, a flexible resin material, or the like and having a hollow portion 10 formed thereon.
- the first spring member 6 and the second spring member 7 are formed on the surface.
- the protrusions 9 are provided at equal intervals on both the upper surface and the lower surface of the positioning tube 8.
- the protrusion 9 extends parallel to the longitudinal direction of the central portions 61 and 71 of the first spring member 6 and the second spring member 7, and the first spring member 6 or the second spring is formed by two adjacent protrusions 9. By sandwiching the member 7, the first spring member 6 or the second spring member 7 is prevented from moving in the width direction.
- interval of the adjacent protrusion 9 is set a little wider than the width
- the pressing structure 300 includes a part of the first spring member 6 facing upward and the second spring member 7 facing downward in a top view. They are arranged alternately in the width direction so as to overlap. Therefore, as in the second embodiment, the surface pressure can be made uniform, and even if the number of spring members is increased, a decrease in spring load per unit area can be prevented.
- the positioning tube 8 is used for positioning the first spring member 6 and the second spring member 7, it is not necessary to provide positioning means for the first pressed body 301. Therefore, no special processing or the like is required for the member to be pressed.
- the second pressed body 102 may also be formed of a pressed member in the same manner as the first pressed body 301. It is not necessary to provide positioning means for the second pressed body 102 as well.
- FIG. 16 is a schematic diagram illustrating a configuration of a main part of the power conversion device according to the fourth embodiment of the present invention.
- Embodiment 4 demonstrates the power converter device which is a press unit as an application example of a press structure.
- the power conversion device 400 shown in the figure is a device that generates a drive current that flows to a travel motor for an electric vehicle, for example.
- the press structure 300 of the above-mentioned Embodiment 3 you may use the press structure 100 by Embodiment 1, or the press structure 200 by Embodiment 2.
- the power conversion device 400 includes a semiconductor stacked unit (first pressed body) 402 including semiconductor elements, a pressing structure 300 that presses the semiconductor stacked unit 402 from one side surface, and the semiconductor stacked unit 402.
- the power conversion apparatus 400 includes a control circuit that controls the semiconductor module 421 in addition to the illustration.
- the semiconductor lamination unit 402 has a structure in which semiconductor modules 421 and cooling pipes 422 are alternately laminated. In the case illustrated in FIG. 16, two semiconductor modules 421 are disposed between cooling pipes 422 adjacent in the stacking direction. *
- an IGBT element for supplying power and a flywheel diode element provided for smoothly rotating the motor are arranged between a pair of heat sinks and sealed with a resin so that the pair of heat sinks are exposed. Stopped and integrally molded.
- the cooling pipe 422 is a flat pipe having a refrigerant flow path inside.
- natural refrigerants such as water and ammonia, water mixed with ethylene glycol antifreeze, fluorocarbon refrigerants such as fluorinate, chlorofluorocarbon refrigerants such as HCFC123 and HFC134a, alcohols such as methanol and alcohol, etc.
- a cooling medium such as a system refrigerant or a ketone refrigerant such as acetone is circulated.
- the plurality of cooling pipes 422 are connected to each other via a connecting pipe 423 extending along the stacking direction of the semiconductor stacking unit 402.
- a refrigerant introduction port 424 and a refrigerant discharge port 425 connected to a cooling pipe 422 disposed at the end of the connection pipe 423 are provided at the end of the connection pipe 423.
- the cooling pipe 422, the connecting pipe 423, the refrigerant inlet 424, and the refrigerant outlet 425 are realized using, for example, aluminum. *
- the main surface 422a of the cooling pipe 422 is in close contact with the heat sink of the semiconductor module 421 by the pressing force from the pressing structure 300. Thereby, heat exchange can be performed between the semiconductor module 421 and the cooling pipe 422.
- the semiconductor stacked unit 402 can be pressed in the stacking direction uniformly in a plane with a sufficient pressing force. Therefore, the cooling efficiency of the semiconductor stacked unit 402 by the cooling pipe 422 can be improved.
- FIG. 17 is a schematic diagram showing a configuration of a main part of the electric double layer capacitor according to the fifth embodiment of the present invention.
- an electric double layer capacitor as a pressing unit will be described as an application example of the pressing structure.
- the following example demonstrates what provided the press structure 300 of the above-mentioned Embodiment 3, you may use the press structure 100 by Embodiment 1, or the press structure 200 by Embodiment 2.
- FIG. 300 a schematic diagram showing a configuration of a main part of the electric double layer capacitor according to the fifth embodiment of the present invention.
- an electric double layer capacitor as a pressing unit will be described as an application example of the pressing structure.
- the press structure 300 of the above-mentioned Embodiment 3 you may use the press structure 100 by Embodiment 1, or the press structure 200 by Embodiment 2.
- An electric double layer capacitor 450 includes a cell stack (first pressed body) 452 including a plurality of package cells 451, and a pressing structure 300 that presses the cell stack 452 from one side surface. And a flat plate-like contact plate 454 interposed between the cell stack 452 and the pressing structure 300, and a housing (second pressed body to receive the cell stack 452, the pressing structure 300, and the contact plate 454) 455.
- the electric double layer capacitor 450 has a connection terminal with an external circuit in addition to the illustration.
- the cell stack 452 is electrically connected to a connection terminal with an external circuit.
- the cell stack 452 is configured by stacking a plurality of package cells 451.
- Each package cell 451 has an innermost layer and an outermost layer made of an insulating film, and includes a positive electrode collector electrode and a negative electrode collector electrode.
- a laminated body in which a plurality of collector electrodes are overlapped via a separator is accommodated together with an electrolytic solution.
- the positive electrode terminal and the negative electrode terminal of each collector electrode are connected to the positive electrode collector electrode and the negative electrode collector electrode, respectively.
- the plurality of package cells 451 are connected in series by connecting the positive and negative electrode collector electrodes of adjacent package cells 451 with connection terminals.
- the energy density per unit volume is improved by pressing the multilayer body 452 of the electric double layer capacitor 450 in the stacking direction by the pressing structure 300 to limit the expansion of the polarizable electrode. It becomes possible to do.
- the first spring member and the second spring member have the same shape, but may have different shapes.
- the plate widths of the first spring member and the second spring member can be made different.
- the power conversion device is given as an example of a pressing unit that needs to be pressed by the pressing structure.
- the electric double-layer capacitor is a pressing unit that needs to be pressed by the pressing structure.
- the pressing structure is disposed between the first pressed body and the second pressed body, and the first pressed body is applied. Any device may be used as long as the pressing body and the second pressed body are pressed by the pressing structure.
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Abstract
Description
図1は、本発明の実施の形態1による押圧構造を用いた押圧ユニットを模式的に示す側面図である。図2Aは、図1に示す押圧構造の平面図である。図2Bは、図1に示す押圧構造の側面図である。
S1=L×B1 …(1)
また、単位面積当たりの荷重P1は、押圧構造全体のばね荷重をF0とした場合、以下の式(2)で求められる。
P1=F0/S1 …(2)
P1=5000/(100×50)=1.00[N/mm2] …(3)
P2=5000/(101.6×50)=0.98[N/mm2] …(4)
P2=5000/(103.6×50)=0.965[N/mm2] …(5)
上述したように、実施の形態1では面圧分布の均一化を図ることはできるが、単位面積当たりの荷重が低下してしまう。そこで、実施の形態2では、同一面積内に配置するばね部材の数を増加させて、単位面積当たりの荷重を低下させずに、面圧分布の均一化を実現する。
P3=(1000×9)/(101.6×50)=1.77[N/mm2] …(6)
図11は、本発明の実施の形態2の変形例によるばね部材の上面視での形状を示す平面図である。実施の形態2の変形例によるばね部材5は、実施の形態2における第1のばね部材3又は第2のばね部材4として用いることができる。
実施の形態2では、第1のばね部材3及び第2のばね部材4の位置決めを行うために、第1の被押圧体201又は第2の被押圧体102側に、位置決め溝201a及び201bを設けたが、この実施の形態3では、位置決め手段として位置決め用チューブを用いる。
図16は、本発明の実施の形態4による電力変換装置の要部の構成を示す模式図である。実施の形態4では、押圧構造の適用例として、押圧ユニットである電力変換装置を説明する。同図に示す電力変換装置400は、例えば、電気自動車用の走行モータに流す駆動電流を生成する装置である。なお、以下の例では、上述の実施の形態3の押圧構造300を備えたものとして説明するが、実施の形態1による押圧構造100又は実施の形態2による押圧構造200を用いてもよい。
図17は、本発明の実施の形態5による電気二重層キャパシタの要部の構成を示す模式図である。実施の形態5では、押圧構造の適用例として、押圧ユニットである電気二重層キャパシタを説明する。なお、以下の例では、上述の実施の形態3の押圧構造300を備えたものを説明するが、実施の形態1による押圧構造100又は実施の形態2による押圧構造200を用いてもよい。
2,4,7 第2のばね部材
5 ばね部材
8 位置決め用チューブ
9 突起
10 中空部
11,21,31,41,51,61,71 中央部
12,22,32,42,52,62,72 腕部
13,23,33,43,53,63,73 端部
100,200,300 押圧構造
101,201,301 第1の被押圧体
201a,201b 位置決め溝
102 第2の被押圧体
400 電力変換装置
402 半導体積層ユニット
404 当接板
405 筐体
421 半導体モジュール
422 冷却管
423 連結パイプ
424 冷媒導入口
425 冷媒排出口
450 電気二重層キャパシタ
451 パッケージセル
452 セル積層体
454 当接板
455 筐体
Claims (9)
- 第1の被押圧体と前記第1の被押圧体に対向配置される第2の被押圧体との間に配置され、前記第1の被押圧体及び前記第2の被押圧体に対して圧力を加える押圧構造であって、
前記第1の被押圧体に接触する中央部と、それぞれが前記第2の被押圧体に接触する2つの端部と、それぞれが前記中央部から異なる前記端部に向かって延在する2つの腕部と、を有する第1のばね部材と、
前記第2の被押圧体に接触する中央部と、それぞれが前記第1の被押圧体に接触する2つの端部と、それぞれが前記中央部から異なる前記端部に向かって延在する2つの腕部と、を有する第2のばね部材と、
を備えることを特徴とする押圧構造。 - 前記第1のばね部材と、前記第2のばね部材が、幅方向に交互に配列されることを特徴とする請求項1に記載の押圧構造。
- 前記第1のばね部材と、前記第2のばね部材が、前記第1または第2の被押圧体から見て、前記中央部において一部が重なり合うように幅方向に交互に配列され、
前記第1のばね部材及び前記第2のばね部材が、それぞれ前記腕部において、少なくとも非荷重時に互いに干渉しない形状を有することを特徴とする請求項1又は2に記載の押圧構造。 - 前記第1のばね部材及び前記第2のばね部材が、それぞれ前記腕部において、前記中央部の幅よりも狭い幅の部分を有することを特徴とする請求項1~3のいずれか1項に記載の押圧構造。
- 前記第1のばね部材及び前記第2のばね部材が、それぞれ前記腕部の幅が前記中央部から前記端部にかけて減少する形状を有することを特徴とする請求項1~4のいずれか1項に記載の押圧構造。
- 前記第1のばね部材及び前記第2のばね部材が、同一形状であることを特徴とする請求項1~5のいずれか1項に記載の押圧構造。
- 前記第1のばね部材及び前記第2のばね部材の位置決めをする位置決め手段をさらに備えることを特徴とする請求項1~6のいずれか1項に記載の押圧構造。
- 前記位置決め手段が、前記第1のばね部材の前記中央部と前記第2のばね部材の前記中央部との間に形成される空間に挿入されることを特徴とする請求項7に記載の押圧構造。
- 第1の被押圧体と、
前記第1の被押圧体に対向配置される第2の被押圧体と、
前記第1の被押圧体と前記第2の被押圧体との間に配置され、前記第1の被押圧体及び前記第2の被押圧体に対して圧力を加える請求項1~8のいずれか1項に記載の押圧構造と、
を備えることを特徴とする押圧ユニット。
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US15/032,470 US9955611B2 (en) | 2013-10-28 | 2014-10-28 | Pressure structure and pressure unit |
CA2928787A CA2928787C (en) | 2013-10-28 | 2014-10-28 | Pressure structure and pressure unit |
EP14858612.6A EP3065170B1 (en) | 2013-10-28 | 2014-10-28 | Pressing structure and pressing unit |
JP2015545004A JP6412877B2 (ja) | 2013-10-28 | 2014-10-28 | 押圧構造及び押圧ユニット |
CN201480058579.5A CN105706232B (zh) | 2013-10-28 | 2014-10-28 | 推压结构以及推压组件 |
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JP2015088250A (ja) * | 2013-10-28 | 2015-05-07 | 日本発條株式会社 | 燃料電池 |
JP2018057133A (ja) * | 2016-09-28 | 2018-04-05 | トヨタ自動車株式会社 | 電力変換装置 |
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CN108443397A (zh) * | 2018-03-02 | 2018-08-24 | 宁波工程学院 | 一种利用平面简谐波形片减震的结构 |
JP2021017833A (ja) * | 2019-07-18 | 2021-02-15 | アイシン精機株式会社 | 弁開閉時期制御装置 |
JP7400236B2 (ja) | 2019-07-18 | 2023-12-19 | 株式会社アイシン | 弁開閉時期制御装置 |
JPWO2022091824A1 (ja) * | 2020-10-28 | 2022-05-05 | ||
JP7177306B2 (ja) | 2020-10-28 | 2022-11-22 | 日本発條株式会社 | ばね部材 |
WO2022091824A1 (ja) * | 2020-10-28 | 2022-05-05 | 日本発條株式会社 | ばね部材 |
WO2023210591A1 (ja) * | 2022-04-26 | 2023-11-02 | 日本発條株式会社 | ばね部材 |
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WO2024177010A1 (ja) * | 2023-02-22 | 2024-08-29 | 日本発條株式会社 | 押圧ユニット |
Also Published As
Publication number | Publication date |
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EP3065170A1 (en) | 2016-09-07 |
CN105706232B (zh) | 2018-12-11 |
US9955611B2 (en) | 2018-04-24 |
JP6412877B2 (ja) | 2018-10-24 |
CN105706232A (zh) | 2016-06-22 |
EP3065170B1 (en) | 2018-12-19 |
CA2928787C (en) | 2019-02-26 |
EP3065170A4 (en) | 2017-07-19 |
CA2928787A1 (en) | 2015-05-07 |
US20160286687A1 (en) | 2016-09-29 |
JPWO2015064572A1 (ja) | 2017-03-09 |
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