WO2012026454A1 - コンデンサ保持具 - Google Patents
コンデンサ保持具 Download PDFInfo
- Publication number
- WO2012026454A1 WO2012026454A1 PCT/JP2011/068943 JP2011068943W WO2012026454A1 WO 2012026454 A1 WO2012026454 A1 WO 2012026454A1 JP 2011068943 W JP2011068943 W JP 2011068943W WO 2012026454 A1 WO2012026454 A1 WO 2012026454A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- capacitor
- main body
- holder
- tip
- lead
- Prior art date
Links
- 239000003990 capacitor Substances 0.000 title claims abstract description 269
- 229910052751 metal Inorganic materials 0.000 claims description 20
- 239000002184 metal Substances 0.000 claims description 20
- 230000002093 peripheral effect Effects 0.000 claims description 5
- 238000005476 soldering Methods 0.000 claims description 4
- 239000012777 electrically insulating material Substances 0.000 claims description 3
- 239000007769 metal material Substances 0.000 claims description 3
- 238000013459 approach Methods 0.000 claims description 2
- 230000000149 penetrating effect Effects 0.000 claims description 2
- 229910052782 aluminium Inorganic materials 0.000 description 6
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 6
- 230000000694 effects Effects 0.000 description 5
- 239000011347 resin Substances 0.000 description 3
- 229920005989 resin Polymers 0.000 description 3
- 230000005856 abnormality Effects 0.000 description 2
- 230000008878 coupling Effects 0.000 description 2
- 238000010168 coupling process Methods 0.000 description 2
- 238000005859 coupling reaction Methods 0.000 description 2
- 238000006073 displacement reaction Methods 0.000 description 2
- -1 polypropylene Polymers 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 239000004952 Polyamide Substances 0.000 description 1
- 239000004698 Polyethylene Substances 0.000 description 1
- 239000004743 Polypropylene Substances 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000005489 elastic deformation Effects 0.000 description 1
- 239000003792 electrolyte Substances 0.000 description 1
- 239000008151 electrolyte solution Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 229920002647 polyamide Polymers 0.000 description 1
- 229920000573 polyethylene Polymers 0.000 description 1
- 229920001155 polypropylene Polymers 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
Images
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES, LIGHT-SENSITIVE OR TEMPERATURE-SENSITIVE DEVICES OF THE ELECTROLYTIC TYPE
- H01G2/00—Details of capacitors not covered by a single one of groups H01G4/00-H01G11/00
- H01G2/10—Housing; Encapsulation
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES, LIGHT-SENSITIVE OR TEMPERATURE-SENSITIVE DEVICES OF THE ELECTROLYTIC TYPE
- H01G2/00—Details of capacitors not covered by a single one of groups H01G4/00-H01G11/00
- H01G2/02—Mountings
- H01G2/06—Mountings specially adapted for mounting on a printed-circuit support
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES, LIGHT-SENSITIVE OR TEMPERATURE-SENSITIVE DEVICES OF THE ELECTROLYTIC TYPE
- H01G9/00—Electrolytic capacitors, rectifiers, detectors, switching devices, light-sensitive or temperature-sensitive devices; Processes of their manufacture
- H01G9/004—Details
- H01G9/08—Housing; Encapsulation
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES, LIGHT-SENSITIVE OR TEMPERATURE-SENSITIVE DEVICES OF THE ELECTROLYTIC TYPE
- H01G9/00—Electrolytic capacitors, rectifiers, detectors, switching devices, light-sensitive or temperature-sensitive devices; Processes of their manufacture
- H01G9/004—Details
- H01G9/08—Housing; Encapsulation
- H01G9/12—Vents or other means allowing expansion
-
- 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
- H05K3/00—Apparatus or processes for manufacturing printed circuits
- H05K3/30—Assembling printed circuits with electric components, e.g. with resistor
- H05K3/301—Assembling printed circuits with electric components, e.g. with resistor by means of a mounting structure
-
- 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
- H05K2201/00—Indexing scheme relating to printed circuits covered by H05K1/00
- H05K2201/10—Details of components or other objects attached to or integrated in a printed circuit board
- H05K2201/10431—Details of mounted components
- H05K2201/10439—Position of a single component
- H05K2201/10462—Flat component oriented parallel to the PCB surface
-
- 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
- H05K2201/00—Indexing scheme relating to printed circuits covered by H05K1/00
- H05K2201/10—Details of components or other objects attached to or integrated in a printed circuit board
- H05K2201/10431—Details of mounted components
- H05K2201/10583—Cylindrically shaped component; Fixing means therefore
-
- 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
- H05K2201/00—Indexing scheme relating to printed circuits covered by H05K1/00
- H05K2201/10—Details of components or other objects attached to or integrated in a printed circuit board
- H05K2201/10431—Details of mounted components
- H05K2201/10606—Permanent holder for component or auxiliary PCB mounted on a PCB
-
- 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
- H05K2201/00—Indexing scheme relating to printed circuits covered by H05K1/00
- H05K2201/10—Details of components or other objects attached to or integrated in a printed circuit board
- H05K2201/10613—Details of electrical connections of non-printed components, e.g. special leads
- H05K2201/10621—Components characterised by their electrical contacts
- H05K2201/10651—Component having two leads, e.g. resistor, capacitor
-
- 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
- H05K3/00—Apparatus or processes for manufacturing printed circuits
- H05K3/30—Assembling printed circuits with electric components, e.g. with resistor
- H05K3/32—Assembling printed circuits with electric components, e.g. with resistor electrically connecting electric components or wires to printed circuits
- H05K3/34—Assembling printed circuits with electric components, e.g. with resistor electrically connecting electric components or wires to printed circuits by soldering
- H05K3/3447—Lead-in-hole components
Definitions
- the present invention relates to a capacitor holder for holding a capacitor attached to a printed wiring board at a predetermined position.
- capacitors are also placed on the printed wiring board so that the height on the printed wiring board becomes relatively high.
- the amount of protrusion may be suppressed by arranging it substantially parallel to the surface of the wiring board.
- Patent Document 1 The capacitor holder described in Patent Document 1 (the mounting leg (7) referred to in Patent Document 1) is attached to a metal lead (third projection (referred to as Patent Document 1) (refer to Patent Document 1). 11a) and (11b)) (see Patent Document 1: Paragraph [0010]).
- the capacitor holder described in Patent Document 1 has a structure in which the capacitor is held from the side between both ends in the longitudinal direction of the capacitor. Will be placed sideways.
- the present invention has been made to solve the above-described problem, and its object is to provide a capacitor capable of reducing the interval to be secured between adjacent capacitors when mounting a plurality of capacitors in parallel to that of a conventional product. It is to provide a holding tool.
- the capacitor holder according to the first aspect of the present invention is formed of an electrically insulating material, and has a main body portion that can be fitted with a tip of the capacitor, a metal material, and is fixed to the main body portion.
- a lead portion that can be soldered to the mounting location of the capacitor, the tip of the capacitor is fitted into the main body portion, and the lead portion is soldered to the mounting location, so that the capacitor at the mounting location
- the lead portion sandwiches the reference surface with a plane including the tip surface of the capacitor in contact with the contact portion as a reference surface. In the position on the opposite side to the capacitor, characterized in that it is fixed relative to the body portion.
- various capacitors are assumed as the capacitors.
- Various capacitors include electrolytic capacitors.
- a general form of this electrolytic capacitor includes a cylindrical case, a lead extends from one end of the case, and a pressure valve that expands or ruptures when the internal pressure becomes excessive at the other end of the case. It has a form.
- the longitudinal direction of the capacitor means the axial direction of the cylindrical case described above
- the radial direction of the capacitor means the radial direction of the cylindrical case described above.
- the tip of the capacitor means the other end of the case described above (that is, the end where no lead is provided).
- the capacitor holder of the present invention since the capacitor fitted in the main body can be held at the mounting location, even when vibration or impact is transmitted to the capacitor, an excessive load is applied to the capacitor due to the vibration or impact. This can be prevented.
- the lead portion is fixed to the main body portion at a position opposite to the capacitor across the reference surface. For this reason, even if the structure on the end face side of the capacitor becomes bulky due to the provision of the lead portion, the structure on the side of the capacitor does not become bulky.
- such a capacitor holder has a dimension that matches the longitudinal direction of the capacitor as compared to a capacitor in which a lead portion is disposed on the side of the capacitor (for example, the one described in Patent Document 1). Even if it increases, the dimension that matches the radial direction of the capacitor can be reduced. Therefore, when the capacitor holder of the present invention is used when mounting a plurality of capacitors in parallel, the interval to be secured between adjacent capacitors can be reduced more than the conventional product.
- the capacitor holder when the lead portion is located on the opposite side of the capacitor across the reference surface, if the force is applied to the capacitor in a direction to separate the capacitor from the printed wiring board, the force is When acting on the capacitor holder, the capacitor holder tends to be displaced in the direction of tilting with the lead portion as the rotation center. Therefore, the capacitor holder is less likely to be pulled out from the printed wiring board than when the force acting from the capacitor is the force that pulls the lead portion straight out.
- the opening of the main body exposes the pressure valve provided at the tip of the capacitor. Therefore, it is possible to attach the capacitor holder without hindering the function of the pressure valve.
- the tip of the capacitor is fitted into the main body, so that the tip of the capacitor is surrounded by the main body, so that the main body is made of the electrolytic capacitor in the portion other than the opening exposing the pressure valve. Suppresses rupture.
- the capacitor holder holds the electrolytic capacitor, it is possible to limit the scattering direction of the electrolyte that may be scattered due to rupture mainly to the longitudinal direction of the capacitor. Can be limited.
- this aluminum case may be a radiation source of high frequency noise.
- a metal lead portion is provided in the vicinity of the aluminum case. Therefore, even if a noise current flows in the aluminum case, the lead portion is connected by capacitive coupling. Noise current falls to the ground.
- the capacitor holder of the present invention unlike the case of being fixed to the printed wiring board with an electrically insulating member different from the metal lead portion, not only holding the capacitor but also the capacitor It can also take measures against high frequency noise.
- capacitors are electronic components with relatively large tolerances, and there are some individual differences in longitudinal dimensions and diameters. Therefore, if the lead part is provided on the side of the capacitor, individual differences may occur in the distance between the capacitor side surface and the lead part due to the radial tolerance of the capacitor itself. Such high frequency noise countermeasure effects may vary.
- the distance between the tip surface of the capacitor and the lead portion is as follows. Regardless of the tolerance in the longitudinal direction of the capacitor itself, the distance is as set on the capacitor holder side.
- the capacitor holder of the present invention can stably exhibit the above-described high-frequency noise countermeasure effect regardless of the tolerance in the longitudinal direction of the capacitor itself.
- the lead portion When holding a capacitor having a tolerance in the radial direction, if the lead portion is provided on the side of the capacitor, the lead portion may be a factor that hinders the main body portion from expanding and deforming in the radial direction. In this case, if the distance between the lead portions is narrow, the capacitor having a large diameter within the tolerance range may be held at an excessively high holding pressure by the capacitor holder. On the other hand, if the distance between the lead portions is increased, the capacitor having a small diameter within the tolerance range may not be properly held due to insufficient holding pressure by the capacitor holder.
- the lead portion is provided on the end face side of the capacitor, the lead portion is unlikely to be a factor that hinders the main body portion from expanding and deforming in the radial direction. Therefore, the holding pressure of the capacitor is not excessively increased or decreased due to at least the lead portion, and optimization of the holding pressure is facilitated.
- the capacitor holder of the second aspect of the present invention is the capacitor holder of the first aspect, wherein the lead portion is viewed from the fitting direction when the tip of the capacitor is fitted into the main body portion. In the position which overlaps with the front end surface of the capacitor, it is fixed to the main body.
- the lead portion is positioned so as to overlap the tip surface of the capacitor, when the force for displacing the capacitor in the longitudinal direction is applied to the capacitor, the lead portion Can be received in the existing part.
- the force acting on the capacitor holder from the capacitor is more firmly received on the capacitor holder side than when the lead is not in a position where it overlaps the front end surface of the capacitor, thereby preventing displacement of the capacitor more reliably. Can do.
- the capacitor holder holds the electrolytic capacitor, if the pressure valve on the tip surface of the electrolytic capacitor bursts due to the abnormality of the capacitor, there is a possibility that the force accompanying the burst may also act on the capacitor holder. If the lead portion is at a position where it overlaps the tip end surface of the capacitor, the main body portion of the capacitor holder can be reinforced by the lead portion, and the main body portion of the capacitor holder can be prevented from being damaged due to the burst of the capacitor.
- the capacitor holder according to a third aspect of the present invention is the capacitor holder according to the second aspect, wherein the lead portion is composed of a pair of metal bodies arranged at intervals, and the pair of metal bodies is A portion continuous from one end used for soldering extends in parallel until reaching the other end, and is bent from the middle to a direction closer to each other as it approaches the other end. And when the portion from the halfway point to the other end portion overlaps with the tip end surface of the capacitor when viewed from the fitting direction when the tip of the capacitor is fitted into the main body portion, It is fixed to the main body.
- the pair of metal bodies are located at a position where the distance between the pair of metal bodies is narrow at the other end, and the other end overlaps the front end surface of the capacitor. Therefore, even if the interval between the one end portions is somewhat wider for the convenience of soldering, the other end portion side can be surely arranged at a position overlapping the front end surface of the capacitor.
- the capacitor holder according to a fourth aspect of the present invention is the capacitor holder according to the third aspect, wherein the pair of metal bodies are press-fitted into a through-hole formed in the main body portion to penetrate the through-hole. Further, among the portions protruding from both sides of the through hole, the portions continuing from the other end portion are bent in a direction approaching each other.
- the molding of the main body can be performed without arranging a metal body to be a lead in the mold.
- the lead part can be easily attached to the main body part.
- a capacitor holder according to a fifth aspect of the present invention is the capacitor holder according to the first to fourth aspects, wherein the main body portion is elastically deformed when the tip of the capacitor is fitted, and the outer peripheral surface of the capacitor It is characterized by comprising an elastic pressure contact piece that is in a state of being in pressure contact with.
- the capacitor can be firmly held by the elastic pressure contact piece, and even if there is a tolerance in the radial dimension of the capacitor, it is possible to prevent the capacitor from rattling. can do.
- FIG. 1A is a perspective view showing a capacitor holder
- FIG. 1B is a perspective view showing a usage state of the capacitor holder
- FIG. 1C shows a usage state of the capacitor holder as seen from another angle.
- It is a perspective view.
- 2A is a plan view showing the capacitor holder
- FIG. 2B is a left side view thereof
- FIG. 2C is a front view thereof
- FIG. 2D is a right side view thereof
- FIG. 2E is a rear view thereof
- FIG. 2F is a bottom view thereof.
- FIG. 3A is a left side view showing a usage state of the capacitor holder
- FIG. 3B is an explanatory diagram showing an enlarged cross section taken along line IIIB-IIIB shown in FIG. 3A.
- FIG. 4A is a front view showing a usage state of the capacitor holder
- FIG. 4B is an explanatory view showing an enlarged part of a cross section taken along line IVB-IVB shown in FIG. 4A
- FIG. 5A is a plan view showing a state where a plurality of capacitor holders are used in parallel
- FIG. 5B is a front view showing a state where a plurality of capacitor holders are used in parallel.
- SYMBOLS 1 ... Capacitor holder, 3 ... Body part, 5 ... Lead part, 5A ... Wide part, 6 ... Capacitor, 5A ... Lead part, 6B ... Pressure valve, 11 ... Cylindrical part, 13 ... End surface contact part, 15 ... Leg part, 17 ... Recess, 19 ... Opening part, 21,23 ... Convex part, 25 ... Elasticity Pressure contact piece.
- the capacitor holder 1 includes a main body portion 3 and a pair of lead portions 5.
- the main body 3 is made of an electrically insulating material (eg, polyamide, polypropylene, polyethylene, etc.)
- the lead portion 5 is made of a metal material (eg, a copper-based alloy).
- the tip of a capacitor 6 formed in a columnar shape is fitted into the main body 3 as shown in FIGS. 1B and 1C.
- the lead portion 5 of the capacitor holder 1 and the lead portion 6A of the capacitor 6 are soldered to a printed wiring board (not shown), so that the capacitor holder 1 together with the capacitor 6 is placed on the printed wiring board.
- the capacitor 6 is held by the capacitor holder 1 on the printed wiring board, and is firmly held in place as compared with the case where the capacitor holder 1 is not provided. Even when vibration or impact is transmitted to the capacitor 6, it is possible to prevent an excessive load from being applied to the lead portion 6A of the capacitor 6 due to the vibration or impact.
- the main body 3 includes a cylindrical portion 11 that surrounds the tip of the capacitor 6 from the outer peripheral side of the capacitor 6 when the capacitor 6 is fitted into the main body 3. And an end surface contact portion 13 that contacts the periphery of the end surface of the capacitor 6 when the capacitor 6 is fitted into the main body portion 3, and a pair of leg portions 15 formed on the left and right sides at the lower portion of the cylindrical portion 11. ing.
- Concave portions 17 are formed on both the left and right sides of the upper portion of the cylindrical portion 11 and the boundary with the end surface contact portion 13, and the upper end of the lead portion 5 is exposed to the outside of the main body portion 3 in the concave portion 17 Yes.
- the pair of lead portions 5 are bent in a direction in which the distance between the upper ends of the two lead portions 5 is reduced (see FIGS. 3A and 3B).
- the lead portion 5 is disposed at a position penetrating the through-hole by being press-fitted into the through-hole formed in the main body portion 3.
- the portions that are continuous from the upper end are bent in directions approaching each other.
- a part of the lead part 5 is provided with a wide part 5A having a partially enlarged width, and the wide part 5A is formed as a through hole.
- the lead portion 5 is not easily removed from the through hole. Further, after the continuous portions from the upper end of the lead portion 5 are bent in a direction approaching each other, the bent portion becomes a portion that prevents the main body portion 3 from being pulled out above the lead portion 5.
- the lead part 5 is attached to the main body part 3 by such a method, when the main body part 3 is molded using a mold, a metal body to be the lead part 5 is not arranged in the mold. However, the lead portion 5 can be easily attached to the main body portion 3 by press-fitting the metal body after the main body portion 3 is formed.
- the upper end side of the lead part 5 bent in this way is at a position overlapping the front end surface of the capacitor 6 as shown in FIG. 3B. Therefore, when a force for displacing the capacitor 6 in the longitudinal direction is applied to the capacitor 6, the force can be received by the portion where the lead portion 5 exists, and thereby the displacement of the capacitor 6 can be prevented more reliably. be able to.
- the distance between the pair of lead portions 5 is narrow at the upper end, the distance between the lower ends is wider than the distance between the upper ends.
- the lower end of the lead portion 5 is set with a soldering position in consideration of its mounting strength and the like, if the distance between the pair of lead portions 5 is constant from the lower end to the upper end, It may be difficult to make the position of the lead part 5 surely overlap with the tip surface of the capacitor 6.
- the upper ends of the lead portions 5 are bent inward as described above, the upper end side of the lead portions 5 can be surely disposed at a position overlapping the front end surface of the capacitor.
- An opening 19 is formed near the center of the end surface contact portion 13.
- the pressure valve 6B on the tip surface of the capacitor 6 is exposed from the opening 19 as shown in FIG. 4A. Therefore, if such an opening 19 is provided, the capacitor holder 1 can be attached to the capacitor 6 without hindering the function of the pressure valve 6B.
- the tip of the capacitor 6 is fitted into the main body 3, so that the tip of the capacitor 6 is surrounded by the main body 3, and therefore in the portion other than the opening 19 that exposes the pressure valve 6 ⁇ / b> B.
- the main body 3 suppresses the burst of the capacitor 6.
- convex portions 21 and 23 projecting toward the back surface are formed on the back surface side of the end surface contact portion 13.
- the end surface abutting portion 13 is configured to abut on the tip surface of the capacitor 6 at the convex portions 21 and 23 as shown in FIG. 4B.
- An elastic pressure contact piece 25 is provided at the bottom of the cylindrical portion 11.
- the elastic pressure contact piece 25 is pushed away to the outer peripheral side of the capacitor 6 while being elastically deformed, and comes into pressure contact with the outer periphery of the capacitor 6. Therefore, if such an elastic pressure contact piece 25 is provided, even if there is a tolerance in the outer peripheral dimension of the capacitor 6, the tolerance can be absorbed by the elastic deformation of the elastic pressure contact piece 25 to hold the capacitor 6 tightly. it can.
- the elastic pressure contact piece 25 is caught at one end of the end face of the capacitor 6 when the capacitor 6 is fitted into the main body portion 3. It will be pushed into the back of the main body 3.
- the user when pushing the capacitor 6 into the main body 3, the user can rely on the snap feeling and push the capacitor 6 into the main body 3 to an appropriate position, so that the pushing amount is not such that the snap feeling is not felt. Can be noted.
- the capacitor 6 fitted in the main body 3 can be held at the mounting location, so that even if vibration or impact is transmitted to the capacitor 6, the vibration or It is possible to prevent an excessive load from being applied to the capacitor 6 due to the impact.
- the lead portion 5 is opposite to the capacitor 6 across the reference plane P, with the plane including the tip end surface of the capacitor 6 as a reference plane P (see the alternate long and short dash line in FIG. 4B). At the side position, it is fixed to the main body 3. Therefore, although the structure on the end face side of the capacitor 6 becomes bulky to some extent due to the provision of the lead part 5, the structure on the side of the capacitor 6 does not become bulky.
- the lead portion 5 is disposed on the side of the capacitor 6 (for example, as described in Patent Document 1 above). Even if the dimension corresponding to the longitudinal direction of the capacitor 6 increases, the dimension corresponding to the radial direction of the capacitor 6 can be reduced.
- the metal lead portion 5 is provided in the vicinity of the aluminum case that is the exterior of the capacitor 6, so that a noise current flows through the aluminum case.
- the noise current falls to the ground via the lead portion 5 due to capacitive coupling.
- the capacitor holder 1 does not only hold the capacitor 6 unlike the holder fixed to the printed wiring board PWB with an electrically insulating member different from the metal lead portion 5.
- the high frequency noise countermeasure for the capacitor 6 can also be taken.
- this invention is not limited to said specific one Embodiment, In addition, it can implement with a various form.
- the elastic pressure contact piece 25 that press-contacts the outer periphery of the capacitor 6 is provided.
- the main body 3 is configured to be capable of press-fitting the tip of the capacitor 6, the elastic pressure contact piece 25 Whether or not 25 is provided is arbitrary.
- the present invention can also be applied to a capacitor having no pressure valve, and has the same effect as the case of holding an electrolytic capacitor. Needless to say.
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Manufacturing & Machinery (AREA)
- Structures For Mounting Electric Components On Printed Circuit Boards (AREA)
Abstract
Description
本発明の第1局面のコンデンサ保持具は、電気絶縁材料で形成され、コンデンサの先端を嵌め込み可能な形状とされた本体部と、金属材料で形成され、前記本体部に固定されており、所定の取付箇所に対してはんだ付け可能なリード部とを備え、前記コンデンサの先端が前記本体部に嵌め込まれるとともに、前記リード部が前記取付箇所にはんだ付けされることにより、前記取付箇所において前記コンデンサを保持可能なコンデンサ保持具であって、前記本体部は、前記コンデンサの先端が嵌め込まれた際に、前記コンデンサの先端を露出させる開口部と、前記コンデンサの先端面に当接する当接部とを有する形状とされており、前記リード部は、前記当接部に当接した前記コンデンサの先端面を含む平面を基準面として、当該基準面を挟んで前記コンデンサとは反対側となる位置において、前記本体部に対して固定されていることを特徴とする。
なお、径方向に公差があるコンデンサを保持するに当たって、コンデンサの側方にリード部が設けてあると、リード部は本体部が径方向に拡大変形するのを阻害する要因となるおそれがある。この場合、リード部間の距離が狭めになっていると、公差範囲内で径の大きいコンデンサは、コンデンサ保持具によって過剰に高い保持圧で保持されるおそれがある。その一方、リード部間の距離が広めになっていると、公差範囲内で径の小さいコンデンサは、コンデンサ保持具による保持圧が不足し、適切に保持できない状態となるおそれがある。
コンデンサ保持具1は、図1Aに示すように、本体部3と、一対のリード部5を備えている。これらのうち、本体部3は、電気絶縁性材料(例えば、ポリアミド、ポリプロピレン、ポリエチレン等)で形成され、リード部5は、金属材料(例えば、銅系合金)で形成されている。
このコンデンサ保持具1において、本体部3は、図2A~図2Fに示すように、コンデンサ6が本体部3に嵌め込まれた際にコンデンサ6の先端をコンデンサ6の外周側から囲む筒状部11と、コンデンサ6が本体部3に嵌め込まれた際にコンデンサ6の端面周縁に当接する端面当接部13と、筒状部11の下部において左右両側に形成された一対の脚部15とを備えている。
例えば、上記実施形態においては、コンデンサ6の外周に圧接する弾性圧接片25を設けてあったが、本体部3の形態がコンデンサ6の先端を圧入可能な形態にされていれば、弾性圧接片25を設けるか否かは任意である。
Claims (5)
- コンデンサを保持可能なコンデンサ保持具であって、
電気絶縁材料で形成され、コンデンサの先端を嵌め込み可能な形状とされた本体部と、
金属材料で形成され、前記本体部に固定されており、所定の取付箇所に対してはんだ付け可能なリード部とを備え、
前記本体部は、前記コンデンサの先端が嵌め込まれた際に、前記コンデンサの先端を露出させる開口部と、前記コンデンサの先端面に当接する当接部とを有する形状を備え、
前記リード部は、前記当接部に当接した前記コンデンサの先端面を含む平面を基準面として、当該基準面を挟んで前記コンデンサとは反対側となる位置において、前記本体部に固定されている、コンデンサ保持具。 - 前記リード部は、前記本体部へ前記コンデンサの先端を嵌め込むときの嵌め込み方向から見たときに、前記コンデンサの先端面と重なる位置において、前記本体部に対して固定されている請求項1に記載のコンデンサ保持具。
- 前記リード部は、間隔を空けて配置された一対の金属体からなり、
前記一対の金属体は、はんだ付けに利用される一方の端部から連続する部分が、他方の端部に達する途中まで平行に延びるとともに、前記途中の箇所からは前記他方の端部に近づくほど互いに接近する方向へ曲げられており、前記途中の箇所から前記他方の端部に至る部分が、前記本体部へ前記コンデンサの先端を嵌め込むときの嵌め込み方向から見たときに、前記コンデンサの先端面と重なる位置において、前記本体部に対して固定されている請求項2に記載のコンデンサ保持具。 - 前記一対の金属体は、前記本体部に形成された貫通孔に圧入されることによって当該貫通孔を貫通する位置に配置されており、しかも、前記貫通孔の両側から突出する部分のうち、前記他方の端部から連続する部分が互いに接近する方向へ曲げられている請求項3に記載のコンデンサ保持具。
- 前記本体部は、前記コンデンサの先端が嵌め込まれた際に弾性変形して、前記コンデンサの外周面に圧接する状態となる弾性圧接片を備える請求項1~請求項4のいずれか一項に記載のコンデンサ保持具。
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JP6142508B2 (ja) * | 2012-11-12 | 2017-06-07 | 北川工業株式会社 | コンデンサホルダ |
JP5949681B2 (ja) * | 2013-06-25 | 2016-07-13 | 株式会社豊田自動織機 | 電動圧縮機 |
JP2015007391A (ja) * | 2013-06-25 | 2015-01-15 | 株式会社豊田自動織機 | 電動圧縮機 |
JP2015216238A (ja) * | 2014-05-11 | 2015-12-03 | 山洋電気株式会社 | 電子部品の実装構造および実装方法 |
US9585255B2 (en) | 2015-03-11 | 2017-02-28 | Raytheon Company | Component support for dense circuit board |
CN105208793B (zh) * | 2015-08-18 | 2017-12-19 | 浪潮电子信息产业股份有限公司 | 一种不同类型电容相互替换的焊接装置 |
DE102015119844A1 (de) * | 2015-11-17 | 2017-05-18 | Epcos Ag | Elektrolytischer Kondensator mit Sicherheitsentlüftung |
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