TW200917302A - Electrochemical cell - Google Patents

Abstract

The invention provides an electrochemical cell, the upper joint of which has: a first part which joints with an upper electrode and extends towards an edge part above the cell main body; several second parts downwards stretching from the first part; and a third part which is respectively bent from lower ends of the several second parts and stretches towards the semi-diameter direction of the cell main body, characterized in that the projections of the upper and lower joints on a plane containing lower surface of the main body are approximately contained in a square externally connected with the projection of the cell main body on the plane, and projections of the several second parts on the plane are configured close to two or more angles of the square.

Description

200917302 IX. Description of the invention: [Technical field to which the invention pertains] There is a joint suitable for cracking in the basic invention on the surface of an electrochemical panel. [Prior Art] Now, an electrochemical battery such as a lithium-ion capacitor is widely used in a portable electronic device or the like. Among them, in the small-sized electrochemical cell used in the application of the portable electronic tower: dual-purpose power supply, etc., as shown in the publication of the publication No. 6-344534, the body casing is mostly in the shape of an electrochemical cell. The upper and lower sides of the battery body are like the positive electrode, and the other side is the negative electrode. That is, the edge is 4 additionally, most of such electrochemical cells have a guide wire). The joints are generally electrically guided by steel or the like, and the ends of the members are respectively joined to the upper and lower surfaces of the body. This method of surname structure towel is carried out. In the Japanese Patent Laid-Open Publication No. 2006-344534, the upper joint is folded toward the lower side of the battery. In addition, in the other part of each joint, the joints on the surface of the slab are in contact with each other on the lower surface of the joint, and the solder is placed on the substrate. Thus, the electrochemical cell is heated to heat the substrate in the soil, and the underside of the body is opposed to the substrate, and the surface is mounted by the end-end bonding (*welding the substrate to re-flow the substrate and the two joints. ). SUMMARY OF THE INVENTION In the structure described above, when an electrochemical cell is mounted, the temperature of the 姨200917302 is not uniform, and the solder at one end of the joint may be refinished. In this way, the state in which the battery body is supported by the two connectors changes, and the battery body is tilted to directly contact the substrate, so that the electrochemical cell is mounted. In recent years, due to environmental problems, the problem is more pronounced in the case of two bright spots with no solder. In addition, when the substrate is lightly curved, the inclination with respect to the substrate causes the upper portion, the front end portion (the portion in contact with the substrate) to be different from the front end of the lower joint, in such a state, the front end of the upper joint and the second end of the joint are connected. Either of them, or both of them, are placed relative to the US. Thus, it is impossible to ensure that the substrate (4) and the connection of the (4) are defective in soldering. The contact area has been studied in order to solve the aforementioned problems. The aim is to provide an electrochemical cell that is stably supported by reflowing solder. Into a bovine battery body For the purpose of the introduction of the board even if the substrate has a slight curvature, it is also intended to provide a sufficiently large electrochemical cell. The contact area of the board is also electrically charged = = The embodiment of the hair supply provides - the upper edge of the battery body; the surface, the electric, the yoke, the yaw, the second and the lower end of the second part respectively: the joint and The lower joint has a third part. The projection is generally received in a plane on the plane below the battery body, and the plurality of third portions m are projected on the plane in the circumscribed square, and the projections on the vicinity of the ^ on the nr are arranged in the two squares of the square In the structure according to the embodiment of the present invention, the upper-BW ... front end can support the battery separately. 4 200917302 The connector can be used to support the battery on the substrate at least twice. Supporting the % pool, so it is possible to stabilize the gamma = for example, the projection of the plurality of third portions in the aforementioned plane has at least * two adjacent corners of the aforementioned square. Preferably, the angle of the square (=2:minute::straight) is along the first two: the angle projected in the plane has two Τ, that is, the third; the foregoing square: two angles are _ In the case of the structure, due to the projection of the head in the plane, when the battery is surrounded by the upper joint, the pair of Γϊ = the bottom of the circle (ie, the center of gravity of the battery) can stably support the battery of the electrochemical knife pool, so In addition, it is preferable that the second part of the first joint of the upper joint is connected to be V-shaped. The apricots of the april ± ^ 与 are made of metal sheets on the adjacent piles - s Shi Tian, which constitutes the Japanese Guard, and the joints are added by punching. As an alternative, two, on the diagonal; the other two corners of the aforementioned square - the upper end of the long axis is connected, the elongated shape is joined at the lower joint, the lower part::;: Γ joint and The lower three portions of the battery body are disposed at the "it" end of the plane, respectively, when the first configuration is not disposed, and the two corners of the square are described above. When such an angle is formed, the front ends of the two upper and lower sides can be placed in the upper end. The four right-angled parts of the square ί are formed at the ends of the long axis In part, the boring tool is placed in the fourth (four) of the 彡 彡 制 四 四 2009 2009 2009 2009 2009 2009 2009 2009 2009 2009 2009 2009 2009 2009 2009 2009 2009 2009 2009 2009 2009 2009 2009 2009 2009 2009 2009 2009 2009 2009 2009 2009 2009 2009 2009 2009 2009 2009 2009 2009 2009 2009 2009 2009 Therefore, in the battery side where the surface-mounted heat treatment is completed, the lower joint such as the ultrasonic probe is placed over the portion of the main body, so that it can be easily inspected for soldering. The other structure can expand the solder surface. It is preferable to prevent the third portion from being configured from the outer side in the radial direction of the force U of the second portion. When the configuration is as described above, the ultrasonic probe or the like is welded from the upper side of the battery body after the surface mounting pressure is equal to: In the upper part, it can be easily checked whether the third portion of the upper joint is substantially in the shape of a right-angled triangle. If the projection of the y-division right-angle portion on the aforementioned plane is disposed in the third portion of the square, the capacitor is mounted on the substrate. The angle of the square of the empty 3 dead space must be generated at the time. Therefore, the substrate on the substrate occupied by the capacitor; Supporting the battery body. In addition, (4), the upper part of the upper lion has at least one to the = pool body in the half # direction outside or _ protruding f (four) bending ίιίίϊΓ. When so constituted 'even in the case of the turtle 3 in the substrate The upper joint can also be installed by the bee mother in response to the substrate. The sorrow is sinful: Li; an embodiment of the invention provides an electrochemical cell: the first part of the upper edge extension; The first part of the pool body is divided; and the third part extending from the lower end of the second part toward the battery: the body half 4 = 200917302 side. The second part of the upper joint has at least one protruding toward the outer side or the inner side of the radial direction of the battery body. The curved portion allows the second portion to be flexed in the up and down direction. When configured in this manner, even if warpage or the like occurs on the substrate, the upper joint can be made with the height of the inclination of the upper joint side and the lower joint side of the substrate. The state of the substrate surface is reliably mounted by reflowing the solder. Preferably, the second portion of the upper joint is provided with a plurality of curved portions arranged side by side in the up and down direction, and directions in which any two curved portions adjacent in the up and down direction protrude are different from each other. That is, according to the present structure, the second portion is more easily deflected due to the plurality of curved portions. Further, in the second portion of the upper joint, one of the upper side and the lower side protrudes outward in the radial direction of the battery body, and the other side protrudes inward in the radial direction of the battery body to form an s shape. Here, the curved portion may also be formed by bending the upper joint, or may be formed by bending the upper joint. As described above, according to the embodiment of the present invention, an electrochemical battery capable of stably supporting the battery body when reinstalled by solder reflow is realized. Further, according to the embodiment of the present invention, an electrochemical cell which sufficiently enlarges the contact area of the joint with the substrate can be realized even in the case where the substrate is warped. [Embodiment] Hereinafter, embodiments of the present invention will be described with reference to the drawings. The first and second figures are respectively a plan view and a bottom view of an electric double layer capacitor as an electrochemical cell of the first embodiment of the present invention. In addition, the third figure is an I-Ι cross-sectional view of the first figure. First, the structure of the electric double layer capacitor will be described. As shown in the third figure, according to 200917302

In the present embodiment, the electric double layer lightning & crying, 7 I lower joint 18 is wrong / package body 1 〇, upper joint 17 and body 11 lower. Further, the battery body 10 has an upper metal casing U having a disk portion lia and a wall portion 11b of the disk portion. Similarly, the lower metal casing 12 has a disc 12a and a wall portion 12b of the disc portion 12a. The lower portion is entirely privately owned and transported. The disc portion 12a to which the μ, _ 丨 metal bismuth 12 is formed is formed to be larger than the disc portion 11a of the upper cymbal metal body 11. In the electric double layer capacitor cartridge according to the present embodiment, the upper 11 and lower metal casings 12 are combined with the outer surface of the wall portion Ub and the inner surface of the wall portion (3) at substantially equal intervals (i.e., the wall portion UM is accommodated in the wall portion). In the space on the side of the wall 2). On the outer peripheral side of the annular ring 16, the temple is between the outer periphery of the wall portion 11b of the upper metal casing U and the inner periphery of the wall portion 12b of the lower metal casing 12. Thereby, the space surrounded by the upper metal casing u and the lower metal casing 12 is sealed from the outside. An inorganic or organic electrolyte is enclosed in this space. Further, the gasket 16 is made of a material having an inertness to prevent the upper metal casing u from being short-circuited with the lower portion 12. The upper end of the wall portion 12b of the double lower metal casing 12 is bent inward. Thereby, the upper end of the washer 16 is strongly pressed between the wall portion Ub of the upper metal casing U and the wall portion 12b of the lower gold body 12 and the peripheral edge portion of the disk portion 12a. As a result, the housing 11 is prevented from coming off the lower metal casing 12 due to the elastic force of the gasket 16. . The upper electrode 13 is a member which is a component of a conductive porous material such as activated carbon, and is bonded to the inner side surface of the upper metal casing and the disk portion 11a by a conductive adhesive (200917302 of the lower surface of the third figure also The member made of the same material as the upper electrode 13 is drilled and attached to the disk portion 12 & the upper surface of the lower metal casing 12). The side surface (the slab shape 15 is Γ = disposed between the upper electrode 13 and the lower electrode 14). This separation film 15% prevents the short circuit caused by the lower electrode of the upper electrode 13 and can make the immersion in the electrolyte The t2 field passes between the upper metal casing u and the lower metal casing 12: the ions in the mash liquid move to the interface between the electrode and the electrolyte, and are charged by the electric double layer. When the charging layer capacitor is connected to the circuit, it is separated and dispersed, so that a current (discharge) flows through the circuit. As described in the interface of the hi pole, the electric double layer capacitor portion 11M port 12a according to the embodiment The two sides are arranged in the same direction, so the double power is in the form of a common button. Therefore, according to the present embodiment, the electric double layer (10) 1 is suitable for mounting on the substrate in a state in which the substrate and the lower metal case are opposed to each other. In the case where the lower metal foil case a 12 is disposed below the electric double layer capacitor i on the substrate, the upper i joint Π and the lower joint 18, the two joints support the lower private σ, and the micro slave substrate Open. Also, the upper joint 17 and the lower The part is a sheet metal member formed by stamping and bending a stainless steel slab. The shape of the upper joint 17 and the lower joint 18 will be described below. In the description of the disk portion of the lower metal casing 12 = downward , the electric double layer capacitor is placed at the level: upper j: the direction of the upper side is defined as "up,,, and toward the lower side = 卞: in addition, from the edge of the disc portion 11a, 12a toward the middle It is defined as "radial direction inside", and from center to side 1 is "radial direction outside," the direction of H is defined 11 200917302 is a shell joint 17 having a lateral direction with the upper gold radius outward ^_ part The disk portion: is joined to the upper metal casing η 17a ^ ^ by the outer portion, the first portion of the two sides", and the portions bent at the two places are the second portions 17b, 17b downward = curved. Hereinafter, this direction 17a is connected to branch in two directions. The first part is replaced by the first part as shown in the third figure, second; =: two points 17b, m. Therefore, the surface of the casing 12a is still 7b, respectively In the lower part of the metal, the (four) balance to the outside of the two parts if The ridges are respectively formed in a rectangular shape in the direction of the coincidence. The lower joint 18 is bent. As a result, the knives 18a are bent so that the fourth portion 18b and the fifth portion of the crank are parallel. It is distinguished that the mutual portion 18b is disposed below the fourth turn of which the second port 18 is connected thereto. Therefore, the disk portion of the contact portion "= is a shell/Η is engaged with the disk portion 12a. The fourth part of the brother is crying in the same portion of the upper joint 17 and the lower joint 18 of the upper joint 17 by the electric double layer capacitor according to the present embodiment. Thus, the lower metal 17e, 17e\ is located under In the state of the electric double layer capacitor! The disk portion of the body is disposed on the fifth portion 18c and the upper portion of the head 18 on the plane, and the lower portion supports the electric double layer capacitor i^ the second portion 17c, 17c at the lower portion, and the battery body 1〇 The disc portion 12a of the lower metal 200917302 housing 12 is placed slightly out of the plane. Therefore, the double-layer electric layer m is placed on the substrate, and the third portion of the lower joint 18 is i8c and the third portions 17c, 17c of the upper joint 17 are soldered to the substrate, and the electric double layer capacitor 1 is appropriately mounted. On the substrate. In the present embodiment, since the electric double layer capacitor i is mounted in a state where the rounded portion f 12a of the lower metal casing 12 is slightly separated from the substrate as described above, the third portion i7c, i7c of the upper joint 17 is inserted into the chamber. The welding ΐ 17 / amount of solder flows, and the upper joint 17 and the lower metal casing 12 are not short-circuited by the flowing bismuth tin.篦5: The third portion 17c, 17c of the second joint 17 and the lower joint 18 are placed on the bottom surface to form a welded surface. Therefore, by mounting the electric double layer capacitor 1 on it and performing only the heat treatment, the third embodiment of the electric double layer capacitor can be branched from the upper joint 17 by two and the upper (four) π:: eight, The fifth portion 18e of the lower header 18 is an electrical layer capacitor 丨. Subsections 17C, 17C, a total of three points to support the double In the present embodiment, the third portion 17 of the upper joint 17 is iced, and the lower jaw is 90 with respect to the center of the disc portion 12a. angle. The fifth part of the other 12a 18 is configured to be relative to the disc portion of the disc portion 135^ 17 ^ 17 ο ^ ^ Λ „ 12, when considering the angle of the lower metal shell Cl, Γ 9 σ 刀 knife configuration In the adjacent two squares of the hypothetical square §. In addition, the fifth part 18C of the lower joint 18, with the inside of the 1! shape s of f7c=, is not arranged along the connection of the third part: C's false 6 square s On the side E1 of the two corners C3, C4. Because of 13 200917302, the middle of the disc portion 12a of the lower metal shell ι2

Hi 1 is substantially in the region of the fifth portion 18c connecting the upper connector ^3, and the electric double layer capacitor i is stabilized. Therefore, 'Even if, for example, in the twisting treatment: tin is melted first, the fifth portion of the lower joint 18 is 18c, the third portion of the joint 17 is 7 1 1.17 (the deviation of the degree is not affected, and the electric double layer is not The contour of the front end of the second portion 17c, 17c' of the strict 17 can be reliably mounted, and the angles C1 and C2 are in the shape of a right triangle.

internal. Since ί Γ == is configured in the case of assuming a square S joint Π, 18 with 31 = layer capacitor 1, ^ ± in the upper and lower space of the battery body or on the substrate == inevitable dead space (in the hypothetical square The electrical layer 1 is placed at the minimum necessary level of the substrate _ ^ °. The first of the double 17 is as shown in the figures -3, 3, and the upper joint in the radial direction according to the present invention is '1, 17C' relative to The lower metal casing 12 is disposed in a half-two and the second portion 17& or the second-part joint first and second ff7, and the top of the container 1 can reach the top loading d: ;; c, i7c, above. Therefore, on the surface, it is easy to check whether the second part 17c, 17c, can be divided into 18 c - ^ know. Similarly, the fifth of the lower joint 18 Department ί i : 5 "J ® ^ 12a ^ ^ ^ Above the ultrasonic probe isostatically in the fifth part 18c exposed 14 200917302, it is easy to check whether it is reliable. The second part of the upper joint η is explained below.接接。 As shown in the third figure, the structure of the upper, 17b according to the embodiment. 17b The second portion of the upper side of the upper half of the meniscus is convexly curved toward the inner side in the radial direction, and the lower side is shaped like this to make the second shape of the s-shaped shape. The spring knife t ",,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,, The second portion 17b of the upper joint head 17 is bent, and as a result, the upper joint portion 18c and the upper joint 17 = the fifth end of the joint 18 are closely followed. Also, the first portion can be combined with the substrate 17b, the third portion L7c,, made the second part of the side nc are also the same. The other side of the second part of the m, the third part of the upper joint 17 of the first vertical R, must be roughly s-shaped makeup with a knife 17b The shape of 17b' can also be no part, and it can be folded into a zigzag shape in the fourth _^. There are three places as shown in the second drawing of the second brother), as shown in (C) of the four figures, the first-shirt eight 171λ It is convex toward the outside in the radial direction. Or ^ (4) of the fourth figure, the second part of the m direction

The inner convex shape is a curved belly u a π , and the shape of the J 八 J iJ π is also acceptable. Alternatively, instead of the second blade 17b or 17b, as shown in (e) or (7) of the fourth figure, a shape which is bent toward the inner side or the outer side is also possible. The joint 17' of (1) to (1) of the fourth figure can be such that the fifth portion 18c of the lower joint 18 and the upper joint 17 can be made even if (4) or the like is provided on the substrate on which the electric double layer capacitor 1 is mounted, as in the present embodiment. The three parts 17c, 17c are both closely followed by the substrate 200917302. In the snowfall according to the embodiment of the invention described above,

The structure of 1 7h β泫二都公—, ~ '〆·^ , | » — — — | y ^ 17c is also within the scope of the present invention. In the configuration of the fifth embodiment, the first portion 17b is formed into a curved shape such as (b) to (f) in the third and fourth drawings, and good adhesion between the substrate and each joint can be achieved. Further, in the electric double layer capacitor package according to the present embodiment, the dam joint 17 and the lower joint 18 are located inside the assumed square s inscribed in the circular blade 12a of the lower metal casing 丨2. However, the present invention is not limited to the structure. That is, the joints 17, 18 do not receive the macro inside of the outer shape S of the arrow sulphur, and a small amount of the outer side is also formed in the present invention. Specifically, it is also assumed that the square S is slightly larger than the circle-portion 12a of the lower metal casing 12, and is a circle-circumscribed square which is enlarged by about 10% in the horizontal direction with the disk portion 12a as its origin. The upper joint 17 is punched from the work unit. So you can do it here. . Further, as shown in the first figure, in the electric double layer state 1 according to the present embodiment, the first portion 17a of the upper joint 17 is configured to be in the vicinity of the edge of the disk portion 11a of the upper metal casing 11 in two Direction branch. Depending on the manner of expression, the first portion 17a of the upper joint 17 is generally fan shaped. The present invention is not limited to the structure as described above. For example, in the first portion 17a of the sixth figure, the branch portion is located near the center of the disk portion 11a, and the entirety of the first portion 17a is formed in a substantially v-shape within the = of the present invention. In such a configuration, the shape of the upper joint 17 when unfolded is also = shape. Generally, a, when manufacturing the upper joint 17, by adding pressure

Therefore, as shown in this example, when the upper portion of the pre-bending 16 200917302 head is v-shaped, the amount of each is reduced by two and as shown in the seventh figure, since the number of the steel plates can be several The upper joint 17 is said to have a 'folding joint 17'. The tail steel pulls him enough to get more of the upper part in the above-mentioned description according to the invention - every one, in the lower part will be a privately-held d „ Μ 的 的 双 双 双 双 双 双 ( ( ( ( ( ( ( ( ( ( ( Body circle:: 丨12a 外 假设 正 假设 假设 假设 假设 假设 假设 假设 假设 假设 假设 假设 假设 假设 假设 假设 假设 , , , , a , , , , , , , , , , , , , , , , In the case of the same or similar Μα, (4)f, the σ ρ points which are similar to the first embodiment are given the same or similar symbols. The eight-figure and the ninth-figure are respectively indicated as the first embodiment according to the present invention. Top view of the tenth layer of the tantalum capacitor and the elevation: Figure = section view is the π_π section view of the first figure and mm 撼 ϊΐ ϊΐ shows the structure of the electric double layer capacitor. As shown in the tenth figure, according to the actual In the example, the electric double layer is completed, the lower metal casing 12, the upper casing 15 and the gasket 16. The crucible electrode 13, the lower electrode 14, and the partition film portion "! the body 11 have: a disc portion Ua, and a wall portion 11b extending perpendicularly from the edge of the disk. Similarly, the lower metal casing #ψ'μ.1 2a, and a disk portion i2a of the lower metal casing 12 which is perpendicular to the edge of the disk portion i2a from the edge of the disk portion i2a, which constitutes a circle of the disk portion 1 la of the upper jaw metal casing 11 in a circle. In the electric double layer capacitor i of the present embodiment, the upper metal casing 17 200917302 11 and the lower metal casing 12 are in the space of the inner side 12b of the 3 = portion 12b of the substantially equal _ opposite direction group). (P is housed between the inner circumferences of the wall 12b. Thereby, the space surrounded by the upper wall portion 12 of the lower jaw metal body 12 is sealed to the outside. The electrolyte of the moxibustion/housing 11 and the lower metal casing In addition, since the upper portion of the gold foil is prevented from being formed of an insulating material by the sealing of the inorganic or organic material in the gasket, the lower metal casing = the upper end of the gasket 16 is bent at the upper metal shell. Thereby, the wall portion of the body 12 Between 12b is strong = 1 U 1 lb and the lower metal shell prevents the upper metal shell U from the lower gold body due to: the elastic force of the ring, the upper joint U is activated carbon, etc. , using conductivity _ two holes and ¥ electrical material for the inside of the main disk portion 11a (tenth The circular carbon and the like which are connected to the upper metal casing 11 are porous and the conductive material is 1: the lower joint 14 is also a component which is connected to the lower metal shell by the active glue, and is electrically conductive. The upper side of the figure) is the inner side of the disc portion %. (The partition film 15 is provided on the upper portion of the sheet member. This partition film 15 prevents the metal shell η between the poles 14 from passing through the lower material. When the other layer is used in the upper layer, when the double-input circuit is formed, the ions are electrified from the electric double-charged electric double layer capacitor. The pole is separated from the government, and the current flows in the circuit. As described above, since the electric double layer capacitor 1 according to the present embodiment is formed by combining the upper metal casing 11 and the lower metal casing 12 having the disk portions 11a and 12a, the electric double layer capacitor 1 is The shape is a common button shape. The electric double layer capacitor 1 according to the present embodiment is configured to be mounted on a substrate in a state in which the substrate and the lower metal case are opposed to each other. More specifically, when the electric double layer capacitor 1 is placed on the substrate with the lower metal casing 12 underneath, the upper joint 17 and the lower joint 18, the two joints support the electric double layer capacitor 1 to lower the metal casing 12 Leaving the substrate slightly. The upper joint 17 and the lower joint 18 are sheet metal members formed by bending a stainless steel sheet. The shape of the upper joint 17 and the lower joint 18 will be described below. Further, in the following description, when the electric double layer capacitor 1 is placed on the horizontal surface in the downward facing state of the outer side of the disk portion 12a of the lower metal casing 12, the direction toward the upper side is defined as "upper" ", and the direction toward the lower side is defined as "lower". Further, the direction from the edge of the disk portions 11a, 12a toward the center is defined as "the inner side in the radial direction", and the direction from the center toward the edge is defined as "the outer side in the radial direction". As shown in the ninth diagram, the lower joint 18 is an elongated flat plate in which a fourth portion 18b which is circularly expanded radially outward is formed at a central portion thereof. The fifth portions 18c, 18c' are formed at both ends of the lower joint 18. As shown in the eleventh figure, between the fourth portion 18b and the fifth portion 18c, 18c' (the bent portions 18a, 18a'), the lower joint 18 is bent into a crank shape, and the fourth portion 18b is higher than the first portion Five parts 18c, 18c'. Further, the fourth portion 18b and the fifth portions 18c, 18c' are substantially parallel to each other. The fourth portion 18b of the lower joint 18 is disposed such that its upper surface is connected to the lower surface of the disc portion 12a of the lower metal casing 12. Therefore, at this contact portion, the fourth portion 18b is spot-welded to the disk portion 12a. Further, as shown in the eighth drawing, the upper joint 17 has an elongated plate shape, and at 19 200917302, it forms a circular first portion 17a. The disk portion 11a of the first portion i7 is in contact with the portion; the over-welding is joined to the upper metal casing η, and the upper joint 17 is formed to be connected from the first portion of the circular portion to the radius of the battery body 1G. On the outer side of the direction, the upper 4 joints 17 are bent downward at two places where they extend. 1 bow 7 2: is called the second part (7), (7). In other words, the first part: ^ the opposite two directions branch out of the second part (7), (7), there is, as shown in the figure 10, the second part 17b, 17b, the sub = 12 under the housing 12a slightly The lower portion is referred to as the outer portion of the half-direction, and the front portion of the curved portion is referred to as the third portion 17c, He. The second portions 17c, 17c' are respectively deployed at a substantially level. In the electric double layer capacitor 1 according to the present embodiment, the heights of the fifth and third blades 18c, 18c of the lower joint 18 and the third portions 17c, 17 of the upper joint 17 are lost. Thereby, the electric double layer capacitor 1 is placed in the fifth portion 18e, 18e of the lower plane upper and lower joints 18, and the second portion of the upper joint 17 in the state in which the lower metal casing n::4 knife 12a faces downward . The enthalpies 17c, 17c support the electric double layer capacitor 丨 at four points, and the body 10' causes the disk portion 1 下部 of the lower metal casing 12 to be in a state of being slightly upward and away from the horizontal plane. Therefore, by placing the electric double layer capacitor 1 on the color plate 'by soldering the fifth portions i8c, l8c of the lower joint 18 and the second portions 17c, 17c of the upper & head 7 to the substrate, the double electricity The layer 1 is mounted on a substrate.曰% In the electric double layer capacitor i according to the present embodiment, since the electric double layer capacitor 1 is mounted in a state where the disk portion 12a of the lower metal casing 12 leaves the substrate as described above, the upper joint 17 is The third portion 77 (:, 17^20 200917302 'even if there is a small amount of solder flow' does not short the upper joint 17 and the lower joint 12 via the flowing solder. 1 if 1 in the third portion 17c, 17c of the upper joint 17, The lower part is connected to Jiang Yanlei to form a welding surface on the bottom surface of the t-th portion, 18<:'. Therefore, only the second electric grid device 1 is placed on the substrate for heat treatment, and the electric double layer capacitor 1 can be mounted on the substrate. As described above, in the electric double layer capacitor according to the present embodiment, the upper jaw joint 17 separates the two third portions 17c, 17c, that is, the fifth portions 18c, 18c' of the lower receiver 18 and The third portion i7c, 17C' of the upper joint 17 supports the electric double layer capacitor 1 at four points in total.

In the electric double layer capacitor 1 according to the present embodiment, the third portions 17c, 17c of the upper joint 丨, 7^, and the fifth portions 18c, 18c of the lower joint 18 are arranged to be opposite to each other. The centers of the disk portions 1 are 9 互相 each other. The corner. That is, as shown in the eighth or ninth diagram, the third portions 17c, 17c' of the upper joint 17 are respectively disposed on the two sides of the hypothetical square S diagonally circumscribing the disk portion 12a of the lower metal casing 12. Corners C3, C2. The fifth portions 18c, 18c of the lower joint 18 are respectively disposed on the assumption that the squares s are not disposed with the third portions l7c, 17c on the two corners C4, C1 on the diagonal. Therefore, the center (i.e., the center of gravity) of the disk portion 12a of the lower metal casing 12 is located in the hypothetical square connecting the third portions 17c, 17c of the upper joint 17, and the fifth portions 18c, 18c of the lower joint 18, stably The electric double layer capacitor 1 is supported. Therefore, even if, for example, in the heat treatment, the solder of the specific joint is melted first, the heights of the fifth portions 18c, 18c of the lower joint 18, and the third portions 17c, 17c of the upper joint 17 are deviated, and the electric double layer capacitor i is also The electric double layer capacitor 1 can be reliably mounted without being dumped. ^ Here, the third portion 17c, 17c of the upper joint 17 has a rim at the front end in the shape of a right-angled triangle along the angles C3, C2 of the assumed square S. That is, the upper joint 17 and the lower portion. Further, the fifth Ϊ, : s of the lower joint 18 is formed along the corners C4 and C1 of the assumed square S; L18e, 18c, and the electric double layer electric entanglement and angular enthalpy are mounted on the front end substrate. Therefore, in the case where the inevitable dead person installs the circular device on the substrate, the electric double layer capacitor; Μ#" is in the middle and according to the embodiment, the minimum necessary limit == the electric double layer capacitor 1 can be mounted on

The third part, the tenth figure, shows that the 'the upper joint π of the present embodiment> is disposed at half with respect to the lower metal casing 12; ^f7b does not cover the first portion 17a or the second of the upper joint Part i //, same as the ninth and eleventh figures, the front ends of the fifth 4 minutes 18c, 18C' of the lower joint 18 are disposed outside the viewing direction with respect to the lower metal casing 12, and Cover the upper joint 17. That is, it is possible to reach from above the electric double layer capacitor 1 to the third portions He, 17c of the upper joint 17 and the upper portions of the fifth portions 18c, 18c' of the lower joint 18. Therefore, after the surface-mounted heat treatment is completed, the ultrasonic probe or the like is pressed from the upper portion of the electric double layer capacitor 1 to the third portion l7c, 17c of the upper joint 17, or the fifth portion of the lower joint 18 to check whether or not welding has been performed. 18c, 18c' can be easily detected ★ The following description explains the structure of the second portion 17b of the upper joint 17. As shown in the tenth diagram, the second portions 17b, 17b' of the upper joint 17 according to the present embodiment are slowly curved while the upper side is convexly convex toward the outer side in the radial direction, and the lower side is convexly bent toward the inner side of the semi-directional direction. It becomes a shape that is roughly S-shaped. Due to such a configuration, the second portions Hb and 17b have the function of a leaf spring that can be stretched to a certain extent in the vertical direction. Therefore, the substrate of the container 1 is warped or the like, and the inclination of the portion of the fifth portion i8c, 18c' of the lower joint 8 is connected to the third portion nc, i7c of the upper joint 17. In the case where the inclination of the portions is different, the second portions nb, 17b' of the upper joint 17 are bent, with the result that the fifth portion ΐ8〇i8c of the lower joint 18, and the third portion 17c, m of the joint 17, both sides Both can be close to the substrate. The shape of the second portions 17b, m of the upper joint 17 is not necessarily required to be in the shape of an S shape. That is, as shown in (4) of Fig. 12, the P17-b, 17b may be planar. Or, as shown in Fig. 12, the (1) shape is also two in the figure, three folds - two t and also 'as shown in (C) of the twelfth figure, in the first - boring tool 17b, 17b, up and down direction The upper center is substantially convex in the radial direction of the pool, or if it is mr toward the inner side in the radial direction of the battery body 1〇, (b) to ΓΠ/() does not become a folded shape. The twelfth joint, i.e., the cymbal, and the upper portion according to the present embodiment can be closely attached to the substrate. The lower end of each of the two brothers of the two knives extends to the second body portion 17b, m of the battery body, and is not limited to such a configuration, and the outer side is exemplified. However, in the present invention, as in the case of (a) to (4), the third portion of the three pools of the thirteenth graph is extended in the radial direction of the _=^^=, as in the fourteenth embodiment. (4) to = 200917302 The points 17c, 17c' are also possible to extend from the lower end of the second portions 17b, 17b' toward the inner side in the radial direction of the battery body 10. BRIEF DESCRIPTION OF THE DRAWINGS The first figure is a top view of an electric double layer capacitor in accordance with a first embodiment of the present invention. The second figure is a bottom view of an electric double layer capacitor in accordance with a first embodiment of the present invention. The third figure is an I-Ι cross-sectional view of the first figure. The fourth figure is a side view showing a modified embodiment of the upper joint according to the first embodiment of the present invention. Fig. 5 is a plan view showing a modified embodiment of the electric double layer capacitor in accordance with the first embodiment of the present invention. Fig. 6 is a plan view showing another modified embodiment of the electric double layer capacitor in accordance with the first embodiment of the present invention. Fig. 7 is a view showing a state in which the upper portion of the electric double layer capacitor shown in Fig. 6 is punched from the steel sheet. Figure 8 is a plan view of an electric double layer capacitor in accordance with a second embodiment of the present invention. The ninth drawing is a bottom view of an electric double layer capacitor in accordance with a second embodiment of the present invention. The tenth figure is a cross-sectional view taken along line II-II of the eighth figure. The eleventh figure is a sectional view of III-III of the eighth figure. Fig. 12 is a side view showing a modified embodiment of the upper joint according to the second embodiment of the present invention. Figure 13 is a side view showing a modified embodiment of the upper joint according to the first embodiment of the present invention. 24 200917302 Figure 14 is a side elevational view showing another modified embodiment of the upper joint in accordance with the second embodiment of the present invention. [Main component symbol description] 1 Electric double layer capacitor 10 Battery body 11 Upper metal casing 11a Disc portion lib Wall portion 12 Lower metal casing 12a Disc portion 12b Wall portion 17 Upper joint 17a First portion 17b Second portion 17c Three parts 18 lower joint 18a bent portion 18b fourth portion 18c fifth portion 25

Claims (1)

200917302 X. Application for patent circle: 1. Electrochemical electric, disc-shaped shape, above: preparation battery body, with upper upper joint, and front block::: electrodes with different polarities; lower part The electrode is bonded to the electrode of the above; 3; the electrochemical cell is characterized in that the electrodes of the ten sides of the original color are joined; and the electrodes are joined to each other, and are provided to the front of the head: a top edge portion extending and a plurality of second portions respectively from the plurality of second portions; a plurality of third portions extending toward the side; wherein the radius of the battery body is the upper joint and the lower joint = upper The projection is generally housed in: = : = in an circumscribed square below the cell body; the projection of the battery body is unloaded and the plurality of third portions are in the vicinity of two or more corners of the square. The electrochemical cell according to the first aspect of the invention, wherein the plurality of third portions are disposed on the adjacent two corners of the square in the plane. Another shadow, at least two points as in the patent scope of the second sign is: J electrochemical battery, which is not equipped with the aforementioned third part in the aforementioned two, the above-mentioned corner of the upper shadow has a month 'j described lower joint The heart on which the aforementioned third portion is projected on the aforementioned plane is a side of the 26 200917302 shape. 4. The electrochemical cell according to claim 2, wherein the shape of the first portion of the upper joint is a V shape in which both ends are connected to the second portion. 5. The electrochemical cell according to claim 1, wherein: the projection of the plurality of third portions on the plane is disposed at two corners on the diagonal of the square; The two corners are not configured to project the aforementioned third portion on the aforementioned plane. 6. The electrochemical cell according to claim 5, wherein: the lower joint has an elongated shape; and the lower joint is joined to a lower surface of the battery body at a substantially central portion in a longitudinal direction of the lower joint. The two ends of the lower joint in the longitudinal direction are respectively disposed at two corners of the square in which the third portion is not projected on the plane. 7. The electrochemical cell according to claim 6, wherein: a rectangular portion is formed at both ends of the lower joint in the longitudinal direction; and a projection of the rectangular portion on the plane is disposed in the corresponding square. angle. The electrochemical cell according to claim 6, wherein the lower joint has a substantially central portion in the longitudinal direction of the lower joint and is wider than the other portion of the lower joint. 9. The electrochemical cell according to claim 1, wherein the third portion extends from a lower end of the second portion toward a radially outer side of the battery body. 10. The electrochemical cell according to claim 9, wherein: the third portion of the upper joint is substantially a right-angled triangular shape; and the projection arrangement of the right-angled portion of the third portion on the plane At the corner of the aforementioned square. 11. The electrochemical cell of claim 1, wherein the second portion of the upper joint has at least one curved portion that deflects the second portion, the curved portion facing the battery The outer side or the inner side of the radial direction of the body protrudes and bends. 12. An electrochemical battery comprising: a battery body having a substantially disk-shaped outer shape, electrodes having different polarities on the upper and lower sides; and an upper joint engaged with the electrodes on the battery body; 28 200917302 lower electrode Engaging with an electrode on the lower surface of the battery body; the electrochemical cell characterized in that the upper joint includes a first portion that is joined to the electrode on the upper surface and extends toward an edge portion of the upper surface of the battery body; a plurality of second portions extending downward; and a third portion of the lower portion of the second portion extending outward in a radial direction of the battery body; the second portion of the upper joint having at least one curved portion, the second portion being The curved portion is curved and protrudes toward the outer side or the inner side of the battery body in the radial direction. 13. The electrochemical cell according to claim 12, wherein: in the second portion of the upper joint, a plurality of curved portions are arranged side by side, and any two curved portions adjacent in the up and down direction are provided. The protruding directions are different from each other. 14. The electrochemical cell according to claim 13, wherein the second portion of the upper joint is formed such that one of the upper side and the lower side protrudes outward in a radial direction of the battery body. The other direction is an S shape in which the battery body protrudes inward in the radial direction. 15. The electrochemical cell according to claim 12, wherein the curved portion is formed by bending the upper joint. 16. The electrochemical cell according to claim 12, wherein 29 200917302 is characterized in that: the curved portion is formed by bending the upper joint. 17. The scope of the patent application is characterized in that: the foregoing electrochemical cell is an electrochemical cell of the electric double layer, and a capacitor thereof. 30