JP2007109626A - Battery cover, and leaked liquid absorbing method - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To inhibit or reduce outflow of leaked liquid from a battery to a wiring circuit, and inhibit or reduce damage of the wiring circuit including a circuit board since the wiring circuit including the circuit board of a battery using equipment is damaged by the leaked liquid from the battery when the battery is mounted on a using equipment and left as it is. <P>SOLUTION: An integrally-formed cover for the battery is provided which is adhered to the battery to cover the battery, which is provided with at least either of a through-hole or a bending part in order to be locked to the battery, and which has both stretchability and liquid absorptivity, and a leaked liquid absorbing method using the cover for the battery is provided. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention includes a manganese dry battery using an aqueous electrolyte, an alkaline battery, a nickel primary battery, a nickel hydride battery, a nickel cadmium battery, a lithium battery using a non-aqueous electrolyte, and a lithium ion battery. The present invention relates to a battery cover and a leakage liquid absorbing method for reducing damage to equipment caused by battery leakage.

Conventionally, there are methods, apparatuses, and the like for eliminating damage to battery-operated equipment due to battery leakage (also referred to as “leakage”). For example, a method of preventing leakage from the battery by installing an integrated circuit in the battery-operated device that stops using the battery's power when the detected voltage drops, or liquid leaking from the battery (hereinafter referred to as “leakage liquid”) (Also referred to as Patent Document 1), in which the absorbing member is disposed in the vicinity of the battery so that the leaked liquid contacts the wiring circuit to prevent corrosion and short-circuiting. In addition, a technique for a socket-type cylindrical battery cover for preventing leakage liquid leaking from the cylindrical battery from leaking to the use device side is also disclosed (for example, see Patent Document 2).
JP 2001-351588 A JP 2003-272580 A

  However, when a device that does not have an integrated circuit with the above function is purchased, it is almost impossible to install the integrated circuit with the above function after that. In addition, it is not realistic to mount an integrated circuit having the above functions on each of inexpensive radios, flashlights, etc., and the contact area between the absorbing member and the battery can be increased simply by disposing the absorbing member near the battery. This reduces the possibility that leaked liquid flows out from the non-contact surface into the wiring circuit.

  Further, in order to prevent leakage liquid from leaking outside the cover, as in the above-described conventional cylindrical battery cover, the sealing performance of the cover is required. Therefore, the accuracy of the shape, the sealing process after the battery is accommodated in the cover, and the like are required, which increases the manufacturing cost and increases the burden on the user.

  Further, in order to keep the leaked liquid inside the cover, it is necessary to secure a certain volume of the cover in addition to the sealing performance. However, the increase in the internal volume leads to an increase in the size of the entire cover, and for example, a cylindrical battery fitted with the cover cannot be stored in the battery case of the device.

  On the other hand, the reduction in the internal volume reduces the amount of leaked liquid that can be held, and a higher degree of sealing performance and robustness of the cover are required. This also increases the manufacturing cost.

  Currently, there are many devices that use a cylindrical battery around us, and the total number of cylindrical batteries used in these devices is also large. It is not practical to purchase expensive cylindrical battery covers because of the liquid leakage that does not know whether or not these numerous cylindrical batteries occur.

  Cylindrical batteries are also used in devices such as radios and flashlights that are needed in disasters, and it is important to reduce the damage caused by liquid leakage of the cylindrical batteries in these cylindrical battery-using devices.

  However, even if there is a cylindrical battery cover that can completely prevent damage to the equipment due to all possible liquid leaks, if it is expensive, the purchase rate will not increase and the installation rate of the cylindrical battery cover will not increase. Absent. For this reason, it is not possible to reduce the ratio of liquid leakage damage in the entire apparatus using a cylindrical battery.

  In addition, a battery that is loaded in a battery-operated device may receive a small amount of current from the battery due to the device being in a standby state even when the device is turned off. Yes. As a result, the battery is overdischarged.

  In addition, when an old battery and a new battery are mixed and loaded in the same device, if the battery is left as it is, an old battery having a low voltage is overdischarged.

  When the battery is in an overdischarged state, liquid leakage occurs due to a crack in the container constituting the battery due to gas generated inside. The same applies when the battery is loaded into the device in the opposite direction.

  In many cases, battery-operated devices are left for a long period of time with a battery loaded, and many people are experiencing damage to battery-operated devices due to leakage from the battery.

  In view of the above problems, the present invention provides a cover for a battery that is inexpensive and easy to mount, prevents or reduces damage to battery-operated equipment due to battery leakage, and an absorbing member for leaked liquid An object of the present invention is to provide a method for reducing the possibility of leakage liquid flowing out from a non-contact surface into a wiring circuit by increasing the contact area between the battery cover and the battery and reducing the non-contact surface.

In order to solve the above-described problem, the cylindrical battery cover according to the present invention is a cylindrical battery cover that is in close contact with the cylindrical battery and covers the cylindrical battery, and locks the cylindrical shape of the cylindrical battery. At least one of a first through hole and a bent part for use in the battery, and a second through hole for energization of the positive electrode or the negative electrode of the cylindrical battery, having stretchability and liquid absorption, and integrated It can be said that it is formed. The method for absorbing leakage liquid from the battery according to the present invention includes at least one of a through hole or a bent portion for locking to the battery, and has stretchability and absorbability for leakage liquid from the battery. A leaked liquid absorption method for efficiently absorbing the leaked liquid from the battery using an integrally formed battery cover, using the through hole or the bent portion for locking to the battery And attaching the battery cover to the battery while engaging and extending the battery cover, shrinking due to the stretchability of the battery cover itself, and closely contacting the battery over a wide range, Loading the battery with a battery cover into a battery loading unit; flowing out the leaked liquid from the battery; absorbing the leaked liquid from the battery cover; and swelling the battery cover. Large and may be assumed to be leaked liquid absorption method comprising the steps of spreading gap between the battery and the battery loading section.

  As described above, the cylindrical battery cover of the present invention is in close contact with the cylindrical battery and is locked to the cylindrical battery by the first through hole or the bent portion, thereby preventing a deviation from the cylindrical battery. Is done. That is, the leaked liquid can be efficiently absorbed, and damage to the equipment due to the leaked liquid can be reduced. Further, it can be realized as a simple integrated body, can be manufactured at a low cost, and can be easily attached to the cylindrical battery by the user.

  The cylindrical battery cover includes two semi-cylindrical portions, each of the two semi-cylindrical portions having a semi-cylindrical shape obtained by cutting a part of a cylinder in the axial direction. Shared and bonded by a shared surface that is a portion in contact with the end surface where the positive electrode or the negative electrode of the cylindrical battery is present, and has independent surfaces that are independent of each other at positions facing the shared surface, It is attached to the cylindrical battery so as to form one cylindrical shape, the second through-hole is present one each on the shared surface and two independent surfaces, and the two independent surfaces are the cylinders. And the two independent surfaces are connected to the positive electrode when the two semi-cylindrical parts are attached to the cylindrical battery. Or overlaid on the end face of the cylindrical battery where the negative electrode exists. It may be the second through-holes present in each of the two independent surface is shaped to form a single hole.

  With this configuration, for example, a cylindrical battery cover having a shape shown in FIG.

  In addition, the first through hole is a through hole that is locked to the convex portion of the positive electrode by penetrating the convex portion of the positive electrode having a cylindrical shape of the cylindrical battery, and the second through hole is the It may be a through hole for energizing the negative electrode of the cylindrical battery.

  The cylindrical battery cover has a belt-like shape and has a length that winds at least one turn along the longitudinal direction of the cylindrical battery, and the first through hole has both ends of the cylindrical battery cover. One each may exist in the part, and the second through hole may exist between the two first through holes.

  With this configuration, for example, a cylindrical battery cover having a shape shown in FIG.

  Further, the cylindrical battery cover has a cylindrical shape having surfaces at both ends, the first through-hole is present on one end surface, and the second through-hole is present on the other end surface, The tubular battery is sized to be inserted into the tubular battery cover due to stretchability, and after the tubular battery is inserted into the tubular battery cover, the original size is secured due to the stretchability. Even if the cylindrical battery is formed in a shape that is reduced to a size that is not pushed out from the second through hole due to the contraction force derived from the stretchability of the entire cylindrical battery cover. Good.

  With this configuration, for example, a cylindrical battery cover having a shape shown in FIG. 3 to be described later is realized.

  Further, the cylindrical battery cover has a cylindrical shape having a surface at one end, the second through hole exists in the surface, and the first through hole has a plurality of end portions not having the surface. The plurality of first through holes may be present at positions where the positive electrode penetrates by bending an end portion of each of the first through holes toward the positive electrode side of the cylindrical battery.

  With this configuration, for example, a cylindrical battery cover having a shape shown in FIG.

  The cylindrical battery cover includes two semi-cylindrical portions, each of the two semi-cylindrical portions having a semi-cylindrical shape obtained by cutting a part of a cylinder in the axial direction. One cylinder having an independent surface that is a surface that is shared and is coupled to a shared surface that is a portion in contact with an end surface where the negative electrode of the cylindrical battery is present, and that is independent of each other at a position facing the shared surface. It is attached to the cylindrical battery so as to form a shape, the first through hole exists in each of the two independent surfaces, the second through hole exists in the shared surface, and the two independent surfaces In the state where the two semi-cylindrical parts are mounted on the cylindrical battery, the surface is overlapped on the end surface of the cylindrical battery where the positive electrode exists, and the first surface exists on each of the two independent surfaces. Even though the through-hole is shaped to form one hole Further, at least one of the independent surface may have the bent portion to be locked in the circumferential side surface of the cylindrical shape of the tubular batteries in circumference.

  With this configuration, for example, a cylindrical battery cover having a shape shown in FIG.

  The cylindrical battery cover includes two semi-cylindrical portions, each of the two semi-cylindrical portions having a semi-cylindrical shape obtained by cutting a part of a cylinder in the axial direction. One cylinder that has an independent surface that is a surface that is shared and is coupled to a common surface that is a portion in contact with an end surface where the positive electrode of the cylindrical battery is present, and that is independent from each other at a position facing the common surface. It is attached to the cylindrical battery so as to form a shape, the first through-hole is present in the shared surface, and the second through-hole is present in each of the two independent surfaces, and the two independent The surface has the bent portion that is engaged with the cylindrical side surface of the cylindrical battery, and the two semi-cylindrical portions are attached to the cylindrical battery. In this state, it is overlaid on the end face of the cylindrical battery where the negative electrode exists, The second through holes present in each of the serial two independent surface may be a shape to form a single hole.

  With this configuration, for example, a cylindrical battery cover having a shape shown in FIG.

  Further, in each cylindrical battery composed of the two semi-cylindrical parts described above, at least one semi-cylindrical part has an auxiliary covering part for covering the cylindrical battery, and the auxiliary covering part is the semi-cylindrical part. And the other semi-cylindrical part mounted on the cylindrical battery, the cylinder is located on the other semi-cylindrical part or between the other semi-cylindrical part and the cylindrical battery. The shape may cover the battery.

  By having this auxiliary | assistant coating | coated part, the outflow amount of the leaking liquid from the clearance gap of a cover can be suppressed, and the absorption amount of the leaking liquid in a cylindrical battery cover improves.

  The cylindrical battery cover is composed of two semi-cylindrical curved surfaces, and the two semi-cylindrical curved surfaces are shared by the two semi-cylindrical curved surfaces. The negative electrode is bonded at a shared surface that is a part in contact with the end surface, and has independent surfaces that are independent from each other at positions facing the shared surface, so as to form one cylindrical shape. When mounted on a cylindrical battery, the parts overlap each other, (1) the first through hole is present on each of the two independent surfaces, and the second through hole is on the shared surface. Or (2) one second through hole may be present on each of the shared surface and the two independent surfaces, and the bent portion may be present on both of the two independent surfaces.

  With this configuration, for example, a cylindrical battery cover having a shape shown in FIG. Since the two semi-cylindrical curved surfaces overlap in this way, the amount of leaked liquid flowing out from the gap between the covers can be suppressed, and the amount of leaked liquid absorbed in the cylindrical battery cover can be improved.

  The cylindrical battery cover includes a semi-cylindrical portion having a semi-cylindrical shape obtained by cutting a part of a cylinder in an axial direction, and an auxiliary covering portion for covering the cylindrical battery, The first through-hole is present on one end surface, the second through-hole is present on the other end surface, and the semi-cylindrical portion is attached to the tubular battery when the cylindrical battery is mounted. A part of the battery is exposed, and the surface of the other end having the second through-hole has the bent part that is engaged with a cylindrical side surface of the cylindrical battery around the periphery. The auxiliary covering portion may have a shape that covers at least a part of the exposed portion of the cylindrical battery.

  With this configuration, for example, a cylindrical battery cover having a shape shown in FIG. 10 described later is realized.

  The tubular battery cover is made of polypropylene fiber, polyethylene fiber, vinylon, cotton, pulp fiber or polyurethane fiber, and is made by knitting, bonding, or compressing, so that the stretchability and liquid absorption can be achieved. It may have a sex.

  That is, the cylindrical battery cover of the present invention is not limited to a specific material, and a material having stretchability and liquid absorbency may be selected according to the manufacturing cost.

  The cylindrical battery cover may be coated with a liquid-impermeable material on an outer surface which is a back surface of a surface in contact with the cylindrical battery.

  Thereby, it is possible to prevent the leaked liquid from seeping out from the outer surface of the cover, and it is possible to further reduce damage to the equipment due to the leaked liquid.

  The liquid-impermeable material may be butyl rubber or high-density polyethylene.

  The liquid-impermeable material may be coated except for a part of the outer surface that is outside the circumferential side surface of the cylindrical battery.

  As a result, leakage liquid that oozes out from the outer surface of the cover can be reduced, and leakage liquid that oozes out from an uncoated part of another adjacent cylindrical battery cover can be absorbed from its uncoated part.

  Furthermore, when the cylindrical battery cover is attached to the cylindrical battery, the first battery has adhesiveness around the first through hole or the second through hole on the inner surface in contact with the cylindrical battery. The inner surface around the first through hole or the second through hole may be adhered to the periphery of the positive electrode or the negative electrode of the cylindrical battery due to adhesiveness.

  Thereby, it becomes possible to prevent the leaked liquid from flowing out from these through holes, and it is possible to further reduce the damage to the equipment due to the leaked liquid.

  Moreover, the part which contacts the said positive electrode of the said cylindrical battery cover, or the part which contacts the said negative electrode is good also as a nonconductor.

  Thereby, when the cylindrical battery cover is moistened by the leaked liquid, it is possible to prevent a short circuit between the positive electrode and the negative electrode of the cylindrical battery in which the voltage remains.

  Further, in the cylindrical battery cover having a shape having two independent surfaces, the first through hole exists in one independent surface, the second through hole exists in the other independent surface, and the second through hole The independent surface where there is may be provided with the bent portion.

  INDUSTRIAL APPLICABILITY The present invention can provide a cylindrical battery cover that is inexpensive and easy to install, and that reduces damage to the cylindrical battery using device due to liquid leakage of the cylindrical battery.

  Here, when a liquid leak from the cylindrical battery occurs, the amount of leaked liquid may be large, but may be discovered in a small amount. Even if the amount of leaked liquid is large, even if the damage cannot be completely prevented, the cover for the cylindrical battery with the performance that can prevent or reduce the damage of the equipment used against a certain amount of liquid leak is very inexpensive As long as it can be provided, it can be attached to almost all cylindrical batteries. Thereby, the ratio of the liquid leak damage in the whole apparatus used can be reduced.

  The best mode for carrying out the present invention will be described below with reference to the accompanying drawings.

(Embodiment 1)
Hereinafter, Embodiment 1 of the present invention will be described with reference to FIGS. 1 and 2.

  FIG. 1 is a diagram showing an overview of a cylindrical battery cover 1 according to Embodiment 1 of the present invention. A cylindrical battery cover 1 shown in FIG. 1 has a band shape and has a length for winding at least one turn along the longitudinal direction of the cylindrical battery. In addition, a through-hole 101a and a through-hole 101b that pass through the cylindrical convex portion of the cylindrical battery are provided, and a through-hole 102 for supplying a negative electrode is provided between the through-hole 101a and the through-hole 101b. .

  Each of the through hole 101a and the through hole 101b that penetrates the convex part of the positive electrode is an example of the first through hole in the tubular battery cover of the present invention. Locked to the convex part of the positive electrode. Thereby, the cylindrical battery cover 1 can be locked to the cylindrical battery 40. Furthermore, the size of the first through-hole is barely large enough to allow the convex portion of the positive electrode to pass through, or the size of the positive electrode convex portion can be penetrated by extending around the hole and increasing the diameter of the hole. Thus, the first through hole can be more reliably locked at the convex portion of the positive electrode.

  The through hole 102 for energizing the negative electrode is an example of a second through hole in the cylindrical battery cover of the present invention.

  The same applies to each cylindrical battery cover in Embodiments 2 to 7 described later. That is, each of the dedicated through holes that penetrate and lock the convex portions of the positive electrode in each cylindrical battery cover is an example of the first through hole in the cylindrical battery cover of the present invention. Each of the negative electrode shared through holes is an example of a second through hole in the cylindrical battery cover of the present invention.

  The cylindrical battery cover 1 is woven or bonded with synthetic fibers such as polypropylene fiber, polyethylene fiber or vinylon, or natural fibers such as cotton or pulp fiber, which hardly cause chemical reaction with the leakage from the cylindrical battery. It is a cloth or sheet made by compressing it and has elasticity and liquid absorbency. The same applies to the respective cylindrical battery covers in the second to seventh embodiments.

  FIG. 2 is a diagram showing a method of mounting the cylindrical battery cover 1 on the cylindrical battery. FIG. 2A shows a state in which the through hole 101b is locked to the convex portion of the cylindrical battery 40 having a cylindrical shape.

  In the figure, a dotted line is added to represent the shape of a portion that cannot be visually recognized. The same applies to the following drawings. The cylindrical battery 40 is, for example, a single alkaline dry battery, but may be another manganese dry battery, a nickel hydrogen battery, a lithium battery, or the like. Moreover, if the size of the cylindrical battery cover 1 is changed, it can be attached to batteries such as single, double, single, single and single.

  FIG. 2B shows the middle of winding the cylindrical battery cover around which the through-hole 101b is locked, and FIG. 2C shows the through-hole 101a in the cylinder. It is a figure which shows the state latched by the convex part of the positive electrode which is a cylindrical shape of a type | mold battery. In the state shown in FIG. 2 (c), the through hole 102 of the cylindrical battery cover 1 is mounted so as to be positioned at the center of the negative electrode of the cylindrical battery, and both the positive electrode and the negative electrode of the cylindrical battery can be energized. is there. The cylindrical battery cover 1 is in close contact as a whole when mounted on the cylindrical battery 40, or at least in the portion corresponding to the shortest line from the through hole 101b to the through hole 101a when flattened.

  If the liquid leaking from the cylindrical battery only adheres to the plastic part of the cylindrical battery loading part other than the part that affects the performance of the cylindrical battery using equipment, such as the substrate, clean the cylindrical battery equipment. Since it is sufficiently reusable, the cylindrical battery cover 1 is the cylindrical battery cover that can be produced at the lowest cost in the present invention.

(Embodiment 2)
Next, the cylindrical battery cover 2 according to the second embodiment of the present invention will be described with reference to FIGS. 3 and 4.

  FIG. 3 is a diagram showing an overview of the cylindrical battery cover 2 of the second embodiment.

  3 (a) is a perspective view of the cylindrical battery cover 2, and FIG. 3 (b) is a view of the cylindrical battery cover 2 as viewed from the direction in which the through hole 202 exists. FIG. 3C is a diagram of the cylindrical battery cover 2 as viewed from the direction in which the through hole 201 exists. FIG. 3D is a front view of the cylindrical battery cover 2.

  The cylindrical battery cover 2 shown in FIGS. 3A to 3D has a cylindrical shape that matches the shape of the cylindrical battery, and is in contact with the end face where the positive electrode and the negative electrode of the cylindrical battery are present inside both ends. Has a surface. In addition, when the external force is not applied, the cylindrical inner space is smaller than the cylindrical battery volume, and when the cylindrical battery cover is extended and attached to the cylindrical battery, it is shrunk by the restoring force so as to be in close contact with the cylindrical battery. It has become.

  The cylindrical battery cover 2 has a through-hole 201 through which the convex portion of the positive electrode, which is a cylindrical shape of the cylindrical battery, passes and a through hole for energization of the negative electrode so that the cylindrical battery cover 2 is not displaced after being installed. Hole 202. The through-hole 202 has a size that allows the cylindrical battery to be inserted into the cover due to the elasticity of the material. After the cylindrical battery is inserted into the cover, the original size or the cylindrical battery can be accommodated by the elasticity. The size is reduced so as not to be pushed out by the contraction force.

  Further, in the cylindrical battery cover 2, a curved surface is formed as a bent portion on the surface in contact with both end faces of the cylindrical battery, which is useful for locking the cylindrical battery cover 2 to the cylindrical battery. ing.

  FIG. 4 is a diagram illustrating a method of mounting the cylindrical battery cover 2 on the cylindrical battery. FIG. 4A is a diagram showing the direction in which the through-hole 202 of the cylindrical battery cover 2 is enlarged in order to insert the cylindrical battery 40 with an arrow. FIG. 4B is a diagram showing the insertion direction of the cylindrical battery 40 into the enlarged through hole 202 by arrows. FIG. 4C shows a state in which the cylindrical battery 40 is being inserted into the cylindrical battery cover 2, and FIG. 4D shows a state where the cylindrical battery cover is completely attached to the cylindrical battery 40. FIG.

  With such a simple procedure, the cylindrical battery cover 2 is attached to the cylindrical battery 40 and is in close contact with the cylindrical battery 40.

(Embodiment 3)
Next, a cylindrical battery cover 3 according to Embodiment 3 of the present invention will be described with reference to FIG.

  FIG. 5 is a diagram illustrating an overview of the cylindrical battery cover 3 according to the third embodiment and a procedure for mounting the cover on the cylindrical battery.

  FIG. 5A is a diagram showing an overview of the cylindrical battery cover 3 and the insertion direction of the cylindrical battery 40. The cylindrical battery cover 3 shown in FIG. 5 (a) is a bag shape into which a cylindrical battery can be inserted, and when the cylindrical battery is inserted, near the center of the portion that contacts the end face where the negative electrode of the cylindrical battery exists. A through-hole 301a and a through-hole 301b, each having a through-hole 302 for energizing the negative electrode and penetrating the cylindrical convex portion of the cylindrical battery, are respectively provided at two ends on the cylindrical battery insertion port side. Prepare.

  FIG. 5B is a diagram illustrating a procedure after the cylindrical battery is inserted into the cylindrical battery cover 3. FIG. 5C is a view showing a state in which the through hole 301a and the through hole 301b are locked to the convex portion of the positive electrode which is a circular injection shape of the cylindrical battery.

  As shown in FIGS. 5 (b) and 5 (c), the through-hole 301a and the through-hole 301b are bent while pulling the end where they exist toward the positive electrode side of the tubular battery. It exists in the position where the positive electrode penetrates.

  Further, there may be two or more end portions having through holes for locking to the convex portions of the positive electrode. In other words, if the number of ends is reduced and the width is increased, the end will be distorted when it is locked to the convex part of the positive electrode. Since the number of the end portions is increased to three or more and the lateral interval between the end portions having the through holes is narrowed, the leaked liquid can be hardly leaked from the gap of the cover itself.

  As described above, the above-described cylindrical battery cover 1 is made of polypropylene fiber, polyethylene fiber, synthetic fiber such as vinylon, or natural fiber such as cotton or pulp fiber, which hardly causes a chemical reaction with the liquid leaked from the cylindrical battery. It is desirable to produce the cylindrical battery cover 2 and the cylindrical battery cover 3.

  However, the properties of the leakage from the battery are broadly classified into two types, a non-aqueous electrolyte solution and an aqueous electrolyte solution. Examples of cylindrical batteries using non-aqueous electrolyte solutions include lithium batteries and lithium ion batteries. Examples of the cylindrical battery using an aqueous electrolyte include a manganese dry battery, an alkaline dry battery, a nickel primary battery, a nickel hydrogen battery, and a nickel cadmium battery.

  Polypropylene fibers, polyethylene fibers, and the like are oil-absorbing but poor in water absorption, and are suitable for absorbing non-aqueous electrolytes, but are not suitable for absorbing aqueous electrolytes. On the other hand, vinylon and the like have a problem that they have water absorption but poor oil absorption and are suitable for absorption of aqueous electrolytes, but are not suitable for absorption of non-aqueous electrolytes.

  Of course, once the type of cylindrical battery to be loaded is determined, the properties of the leaked liquid are also determined, so by attaching a cover for the cylindrical battery made of a single material suitable for absorbing the leaked liquid, When leakage occurs, it is possible to efficiently absorb the leakage. However, in reality, it is difficult to distinguish whether the battery electrolyte is non-aqueous or water-based and install a cover for the battery that has an absorption effect. There is no denying the possibility of wearing an ineffective tubular battery cover by mistake.

  Here, when a cylindrical battery cover is made of one kind of material having both hydrophilicity and lipophilicity, it is possible to absorb both non-aqueous electrolyte solution and aqueous electrolyte solution. However, it is difficult to have almost the same hydrophilicity and lipophilicity with one kind of material alone, and since there are many hydrophilic or lipophilic properties, there are many fibers with hydrophilicity. You may produce a cylindrical battery cover using both the lipophilic fiber.

  For example, a cover may be produced by knitting a spun yarn obtained by mixing two or more types of fibers so as to give stretchability. Alternatively, when spinning, a yarn is formed with one type of fiber, and then A cover may be produced by knitting mixed twisted yarn made by twisting with other types of yarn so as to give stretchability. Further, a cover may be produced by knitting a plurality of types of yarns so as to have elasticity.

  In other words, the use of both water-absorbing fibers and oil-absorbing fibers at the same time as making it stretchable by knitting makes it possible to use a non-aqueous electrolyte even if the leaked liquid is an aqueous electrolyte. Even absorption is possible.

  In order to give elasticity to the cylindrical battery cover, in addition to knitting and knitting the yarn, the raw material itself may be used with a certain degree of elasticity, or by twisting the yarn It does not matter if it has elasticity or is enhanced. This is a technology that is often incorporated into clothing. Of course, instead of knitting yarns, fabric and sheet made by bonding or compressing multiple types of fibers to create a stretchable, water-absorbing and oil-absorbing battery cover May be.

  Further, the outside of the cylindrical battery cover may be formed of a material having stretchability, and an oil-absorbing polypropylene fiber or polyethylene fiber and a water-absorbing material such as cotton, pulp, or vinylon may be attached to the inside. For example, a material having stretchability may be formed into a two-layer network structure, and a liquid absorbing material may be inserted between the layers. Furthermore, you may add the impervious coating mentioned later to an outer surface.

  Moreover, the liquid absorptivity calculated | required by the raw materials, such as the cylindrical battery cover 1, etc. does not need to be high, and should just have the property which can hold | maintain a leaked liquid even if it is a small amount. In other words, when the cylindrical battery leaks, if the amount of liquid leaking out from the cylindrical battery cover can be reduced, damage to the cylindrical battery using device can be reduced.

  Therefore, even if the raw material itself does not have liquid absorbency, the cylindrical battery cover may be made of a material that has obtained liquid absorbency by woven or porous.

  Further, the material of the cylindrical battery cover 1 or the like may not have resistance enough to completely resist a liquid leaking from the cylindrical battery, for example, a potassium hydroxide solution leaking from the alkaline dry battery. In other words, even if the liquid leakage becomes impossible due to the leaked liquid, it is possible to reduce the damage to the apparatus using the cylindrical battery.

  It is easy and simple to give stretchability by knitting yarn, but it is also possible to give stretchability to the yarn itself. For example, the cover may be made using polyurethane fiber and other fibers that have high elasticity and are harder than rubber to deteriorate.

  In other words, the cover may be made using covered yarn wrapped around other fibers such as polypropylene and vinylon with polyurethane as the core, or using core spun yarn with polyurethane inserted into the core in the spinning process such as cotton. A cover may be produced.

  Polyurethane materials are gradually decomposed and deteriorated due to the effects of hydrolysis, nitrogen oxides in the air, ultraviolet rays, etc. The deterioration starts after the material is manufactured, and many partial tears occur in about 3 to 5 years. However, since some stretch performance remains in the covered yarn and the core span yarn, it is considered that the use value as a cover exists.

  In addition, by coating the outer surface of the cover with a liquid-impermeable film that does not allow liquid leaked from the cylindrical battery to leak out directly from the liquid leaking from the cylindrical battery, The performance of the battery cover can be improved. Such a coating is hereinafter referred to as an “impermeable coating”.

  Possible materials for the impermeable coating include high-density polyethylene films and rubbers such as butyl rubber having high alkali resistance.

  In particular, when a high-density polyethylene film with a polyurethane finish inside is used as the impervious coating, the impervious coating itself is stretchable, and the elasticity of the polyurethane is reduced by the leaked liquid, so that the cylinder of the cylindrical battery cover More leaked liquid can be retained by gradually decreasing the degree of adhesion to the battery.

  In addition, in the case of a cylindrical battery cover, such as the cylindrical battery cover 2, which is exposed from the cylindrical battery cover with a small ratio, the outer surface of the cover is coated with an impervious coating as described above. Thus, the cylindrical battery cover is more difficult to discharge leaked liquid out of the cover. In addition, in the cylindrical battery cover 2, if the processing of the liquid-impermeable material is omitted only in the vicinity of the through-hole 202 where higher stretchability is required for the insertion of the cylindrical battery, the production is inexpensive and easy. it is conceivable that.

  Here, the ratio of the battery cover 3 exposed from the cylindrical battery cover of the cylindrical battery is between the battery cover 1 and the battery cover 2, and when the outer surface is coated with an impermeable coating. Also, the ability to keep leaked liquid from the cylindrical battery 40 in the cover is expected to be lower between the battery cover 1 and the battery cover 2 than the battery cover 2. However, since it is not necessary for the cylindrical battery 40 to pass through the through hole 302, it is easier to manufacture than the battery cover 2, and it is considered that the manufacturing value exists.

  Further, for example, in the case where the cylindrical battery cover 1 and the cylindrical battery cover 3 are not easily caught by the cylindrical convex portion of the cylindrical battery and are difficult to be locked, the periphery of the through hole is given adhesiveness, It can also be attached to a cylindrical battery.

  Further, for example, in the case of the cylindrical battery cover 2, when the outer surface is provided with an impermeable coating, the entire peripheries of the through hole 201 and the through hole 202 are made sticky in the same manner as described above so that the through holes Can be adhered to the periphery of the positive electrode and the negative electrode of the cylindrical battery, and the performance of the cover is further improved. That is, if the leakage liquid from the cylindrical battery is a liquid amount within the absorption capacity of the cylindrical battery cover 2, the leakage liquid leakage from the through holes can be prevented. Even when only one of the through holes has the above-mentioned adhesiveness, it is possible to prevent the leakage liquid from flowing out from the through hole.

  Of course, even if the outer surface of the cylindrical battery cover 2 and the cylindrical battery cover 3 is not coated with an impervious coating, if the leakage liquid is small, the cylindrical battery cover absorbs all the leakage liquid. As a result, it is possible to prevent or minimize damage to the cylindrical battery loading device.

  For example, in manganese dry batteries using ammonium chloride, the amount of leakage was large, but recently, manganese dry batteries using zinc chloride have increased, and in manganese dry batteries using zinc chloride, water is taken in as it is discharged. Since the amount of leaked liquid is also reduced, it is considered possible to absorb all the leaked liquid.

(Embodiment 4)
Next, a cylindrical battery cover 4 according to Embodiment 4 of the present invention will be described with reference to FIG.

  FIG. 6A is a diagram showing an overview of the cylindrical battery cover 4 of the fourth embodiment.

  As shown in FIG. 6A, the cylindrical battery cover 4 includes two semi-cylindrical portions, and the two semi-cylindrical portions each have a semi-cylindrical shape obtained by cutting a part of the cylinder in the axial direction. In addition, the two semi-cylindrical portions are shared by the two semi-cylindrical portions and are joined by a common surface that is in contact with the end surface where the positive electrode or the negative electrode of the cylindrical battery is present. It has an independent surface, which is an independent surface, and has a structure that can be mounted by covering the cylindrical battery so as to form one cylindrical shape.

  One independent surface is provided with a through hole 401a, and the other independent surface is provided with a through hole 401b. Both the through hole 401a and the through hole 401b are through holes for energizing the positive electrode or the negative electrode of the cylindrical battery. Further, an auxiliary covering portion 403a and an auxiliary covering portion 403b for covering the cylindrical battery are provided above and below each of the two semi-cylindrical portions. Specifically, the auxiliary covering portion 403a and the auxiliary covering portion 403b can fill a gap between the two semi-cylindrical portions and absorb the leakage liquid.

  In addition, each surface where the through-hole 401a and the through-hole 401b are present has an edge with a bent portion for engaging with a part of a circumferential side surface which is a cylindrical shape of the cylindrical battery 40 on each circumference. Exists. Since the bent portion is locked to the circumferential side surface of the cylindrical battery 40, the independent surface can be locked to the positive electrode side or the negative electrode side of the cylindrical battery 40, and the cylindrical battery cover 4 can be expanded and contracted. It becomes possible to adhere to the cylindrical battery by the force. Moreover, the edge which forms this bending part can make it difficult to leak the leakage liquid from the cylindrical battery 40 outside the cover.

  In addition, the circumferential side surface of a cylindrical battery is a curved surface which exists between the both end surfaces where a positive electrode and a negative electrode exist.

  Furthermore, a through-hole 402 for energizing the negative electrode or the positive electrode of the cylindrical battery is provided on the shared surface, and the two semi-cylindrical parts are joined on the shared surface. This connecting portion becomes a hinge of two semi-cylindrical parts, and makes the cylindrical battery cover 4 detachable from the cylindrical battery.

  6 (b), 6 (c) and 6 (d) are diagrams showing changes in the shape of the cylindrical battery cover 4 of the fourth embodiment.

  FIG. 6B is a diagram showing the tubular battery cover 4 in a fully opened state, and FIG. 6C is a tubular battery in a slightly closed state from the state shown in FIG. 6B. FIG. FIG.6 (d) is a figure which shows the cover 4 for cylindrical batteries of the state further closed from the state shown in FIG.6 (c).

  FIGS. 6 (e), 6 (f) and 6 (g) are diagrams showing a procedure for mounting the cylindrical battery cover 4 of the fourth embodiment on the cylindrical battery. FIG. 6E is a diagram showing an initial procedure for mounting. As shown in FIG. 6 (e), first, the circumferential side surface on the positive electrode side of the cylindrical battery 40 is locked to the bent portion of the independent surface having the through hole 401b, and the half cylinder on the side where the through hole 401b exists. The part is attached to the cylindrical battery 40.

  FIG. 6F is a diagram showing a procedure in the middle of mounting. As shown in FIG. 6 (f), the auxiliary covering portions 403 b located above and below the semi-cylindrical portion attached to the cylindrical battery 40 are covered and adhered to the cylindrical battery 40. Also, the other semi-cylindrical part is brought in the direction of the cylindrical battery 40.

  FIG. 6G is a diagram showing the final procedure of mounting. As shown in FIG. 6G, while pulling the independent surface having the through hole 401a, the bent portion is formed on the positive surface of the cylindrical battery 40 from above the independent surface having the through hole 401b previously locked to the positive electrode side. Lock to the circumferential side of the side. Further, the upper and lower auxiliary covering portions 403a are covered on the cylindrical battery 40 from above the already mounted semi-cylindrical portion.

  In this manner, the cylindrical battery cover 4 can be attached to the cylindrical battery 40. As shown in FIGS. 6A to 6G, the cylindrical battery cover 4 functions as a cover by combining two semi-cylindrical portions coupled in a hinged manner. Moreover, the auxiliary | assistant coating | coated part 403a and the auxiliary | assistant coating | coated part 403b exist so that the clearance gap of the part which the two semi-cylindrical parts meet may be filled. The auxiliary covering portion 403a and the auxiliary covering portion 403b are portions useful for filling the gap between the covers and improving the amount of leakage liquid absorbed in the cylindrical battery cover 4.

  If there is no bent portion that is an edge around the two independent surfaces, it is difficult to attach to the cylindrical battery, but it can be installed even if the positive and negative electrodes of the cylindrical battery are reversed. is there.

(Embodiment 5)
Next, a cylindrical battery cover 5 according to Embodiment 5 of the present invention will be described with reference to FIGS. 7 (a) to 7 (g).

  FIG. 7A is a diagram showing an overview of the cylindrical battery cover 5 of the fifth embodiment.

  As shown in FIG. 7A, the cylindrical battery cover 5 includes two semi-cylindrical portions, and the two semi-cylindrical portions each have a semi-cylindrical shape obtained by cutting a part of the cylinder in the axial direction. In addition, the two semi-cylindrical parts are shared by the two semi-cylindrical parts, and are joined by a common surface that is in contact with the end surface where the negative electrode of the cylindrical battery is present, and are independent from each other at positions facing the common surface. It has an independent surface, which is a surface, and has a structure that covers and installs a cylindrical battery so as to form one cylindrical shape.

  One independent surface is provided with a through hole 501a, and the other independent surface is provided with a through hole 501b. Both the through-hole 501a and the through-hole 501b are through-holes that allow the protruding portion of the positive electrode, which is a cylindrical convex portion of the cylindrical battery, to pass therethrough. Furthermore, the auxiliary | assistant coating | coated part 503a and the auxiliary | assistant coating | coated part 503b for covering a cylindrical battery are provided in the upper and lower sides of two semi-cylindrical parts, respectively. Specifically, the auxiliary covering portion 503a and the auxiliary covering portion 503b can fill a gap between the two semi-cylindrical portions and absorb the leakage liquid.

  Moreover, each surface where the through-hole 501a and the through-hole 501b exist has a bent part in the circumference | surroundings similarly to the cover 4 for cylindrical batteries. With this bent portion, it is possible to make it difficult for the leaked liquid from the cylindrical battery 40 to leak outside the cover. Further, since the bent portion is locked to the circumferential side surface of the cylindrical battery 40, it also has a role of reliably locking the independent surface to the positive electrode side of the cylindrical battery 40.

  Furthermore, a through-hole 502 for energizing the negative electrode is provided on the common surface, and the two semi-cylindrical parts are joined on the common surface. This coupling portion becomes a hinge of two semi-cylindrical portions, and makes the cylindrical battery cover 5 detachable from the cylindrical battery.

  FIG. 7B to FIG. 7D are diagrams showing changes in the shape of the cylindrical battery cover 5 of the fifth embodiment.

  FIG. 7B is a diagram showing the cylindrical battery cover 5 in a fully opened state, and FIG. 7C is a cylindrical battery in a slightly closed state from the state shown in FIG. 7B. FIG. FIG.7 (d) is a figure which shows the cover 5 for cylindrical batteries of the state further closed from the state shown in FIG.7 (c).

  FIG.7 (e)-FIG.7 (g) are the figures which show the attachment procedure to the cylindrical battery of the cylindrical battery cover 5 of Embodiment 5. FIG. FIG. 7E is a diagram showing an initial procedure for mounting. As shown in FIG. 7E, first, the positive electrode of the cylindrical battery 40 is locked to the through hole 501b, and the semi-cylindrical portion on the side where the through hole 501b exists is attached to the type battery 40.

  FIG. 7F is a diagram showing a procedure in the middle of mounting. As shown in FIG. 7 (f), the auxiliary covering portions 503 b located above and below the semi-cylindrical portion attached to the cylindrical battery 40 are covered and adhered to the cylindrical battery 40. Also, the other semi-cylindrical part is brought in the direction of the cylindrical battery 40.

  FIG. 7G is a diagram showing the final procedure of mounting. As shown in FIG. 7 (g), the through-hole 501a is locked to the positive electrode of the cylindrical battery 40, and the auxiliary covering portions 503a on the upper and lower sides are covered with the cylindrical battery 40 from above the already installed semi-cylindrical part. .

  In this way, the cylindrical battery cover 5 can be attached to the cylindrical battery 40. As shown in FIGS. 7A to 7G, the cylindrical battery cover 5 functions as a cover by combining two half-cylindrical portions coupled in a hinged manner. Moreover, the auxiliary | assistant coating | coated part 503a and the auxiliary | assistant coating | coated part 503b exist so that the clearance gap between the parts where the two semi-cylindrical parts meet may be filled. The auxiliary covering portion 503a and the auxiliary covering portion 503b are portions that fill a gap between the covers and are useful for improving the amount of leakage liquid absorbed in the cylindrical battery cover 5.

  It should be noted that there may be no edge that exists around the two independent surfaces, and the through hole that exists on each independent surface is locked to the positive electrode, so that the cover does not deviate from the cylindrical battery. In addition, if there is an edge around at least one independent surface, the independent surface is overlaid on the other independent surface and attached to the cylindrical battery, so that it can be more securely locked to the cylindrical battery. And the effect of suppressing leakage of the leaked liquid out of the cover.

  Note that the cylindrical battery cover 5 according to the fifth embodiment of the present invention uses the columnar convex portion of the positive electrode for locking, and thus the cylindrical battery cover 4 according to the fourth embodiment of the present invention is used. It is hard to slip.

(Embodiment 6)
In the cylindrical battery cover 5 of the above-described fifth embodiment, two semi-cylindrical portions are hingedly connected with a shared surface, and a through hole for energizing the negative electrode exists on the shared surface. However, the same structure can be realized even if there is a through hole that allows the positive electrode to pass through the shared surface and a through hole for energizing the negative electrode on each independent surface that faces the shared surface.

  FIG. 8A to FIG. 8F are diagrams showing changes in the shape of the cylindrical battery cover 6 of the sixth embodiment.

  Fig.8 (a) is a figure which shows the cover 6 for cylindrical batteries of the state opened completely. As shown in FIG. 8A, the cylindrical battery cover 6 includes an auxiliary covering portion 603a and an auxiliary covering portion 603b above and below each of the two semi-cylindrical portions.

  FIG. 8B is a diagram showing the cylindrical battery cover 6 in a state of being slightly closed from the state shown in FIG. As shown in FIG. 8B, a through-hole 602a and a through-hole 602b for energizing the negative electrode are provided on the respective independent surfaces of the two semi-cylindrical portions. In addition, the common surface is provided with a through hole 601 through which the cylindrical convex portion of the positive electrode of the cylindrical battery passes. That is, unlike the cylindrical battery cover 5 of the fifth embodiment, the cylindrical battery is coupled in a hinged manner on the common surface where the through-hole 601 that penetrates the positive electrode side of the cylindrical battery exists.

  Moreover, the edge which forms the bending part for latching to the negative electrode side of the cylindrical battery 40 exists in the circumference | surroundings of two independent surfaces.

  Thus, even if it has the same structure as the cylindrical battery cover 5, there is a through-hole that penetrates the cylindrical convex portion of the positive electrode of the cylindrical battery on the shared surface, and the negative electrode is formed on each of the two independent surfaces. There may be a through hole for energization. That is, each of the through hole that penetrates the cylindrical convex portion of the positive electrode and the through hole for energization of the negative electrode only needs to exist exclusively on either the shared surface or the independent surface.

  In any case, the two independent surfaces are overlapped on the end surface of the cylindrical battery where the positive electrode or the negative electrode is present in a state where the two semi-cylindrical parts are mounted on the cylindrical battery. Each of the through-holes present in each has a shape forming one hole.

  FIG.8 (c) is a figure which shows the cover 6 for cylindrical batteries of the state further closed from the state shown in FIG.8 (b).

  FIG. 8D to FIG. 8F are diagrams showing a procedure for attaching the cylindrical battery cover 6 of the sixth embodiment to the cylindrical battery. FIG. 8D is a diagram showing an initial procedure for mounting. As shown in FIG. 8 (d), first, the negative electrode side of the cylindrical battery 40 is covered with an independent surface in which a through hole 602b for energization of the negative electrode is present, and the positive electrode protrusion is passed through the through hole 601. Then, the semi-cylindrical part on one side is attached to the cylindrical battery 40.

  FIG. 8E is a diagram showing a procedure in the middle of mounting. As shown in FIG. 8E, the auxiliary covering portions 603 b located above and below the semi-cylindrical portion attached to the cylindrical battery 40 are covered with the cylindrical battery 40. In addition, the semi-cylindrical portion on the side where the through hole 602 a exists is brought in the direction of the tubular battery 40.

  FIG. 8 (f) is a diagram illustrating the final procedure of mounting. As shown in FIG. 8 (f), the cylindrical battery 40 is covered from above the semi-cylindrical portion on which the auxiliary surface 603a on the upper and lower sides is mounted with the independent surface where the through-hole 602a is present on the negative electrode side of the cylindrical battery 40. Cover with.

  In this manner, the cylindrical battery cover 6 can be attached to the cylindrical battery 40. As shown in FIGS. 8A to 8F, the cylindrical battery cover 6 is formed on a cylindrical battery so that two semicylindrical parts coupled in a hinge form one cylindrical shape. Installed. Moreover, the auxiliary | assistant coating | coated part 603a and the auxiliary | assistant coating | coated part 603b exist so that the clearance gap of the part which the two semi-cylindrical parts merge may be filled. The auxiliary covering portion 603a and the auxiliary covering portion 603b are portions useful for filling the gap between the covers and improving the amount of leakage liquid absorbed in the cylindrical battery cover 6.

  In more detail, in the procedure shown in FIG. 8D, there are (i) a procedure for locking the through hole 601 to the convex portion of the positive electrode of the cylindrical battery 40, and (ii) a through hole 602b. There are two procedures of covering the independent surface on the negative electrode side of the cylindrical battery. Either of these procedures (i) and (ii) may be performed first.

  FIG. 9A is a diagram showing a procedure for first attaching the cylindrical battery cover 6 to the convex portion of the positive electrode of the cylindrical battery 40 and attaching it to the cylindrical battery 40, and FIG. FIG. 5 is a diagram showing a procedure for initially attaching the cylindrical battery cover 6 to the negative electrode side of the cylindrical battery 40 and mounting it to the cylindrical battery 40.

  The procedure shown in FIG. 9A will be described. First, the convex part of the positive electrode of the cylindrical battery 40 is inserted into the through-hole 601, and then the independent surface where the through-hole 602 b exists is placed on the negative electrode side of the cylindrical battery, so that the half-cylindrical part on one side is covered with the cylindrical battery. Attach to 40. Further, the upper and lower auxiliary covering portions 603 b are brought into close contact with the cylindrical battery 40, and the independent surface on which the through hole 602 a exists is placed on the negative electrode side of the cylindrical battery 40. Finally, the upper and lower auxiliary covering portions 603a are placed on the cylindrical battery 40 from above the semi-cylindrical portion on which the upper and lower auxiliary covering portions 603a are mounted.

  The cylindrical battery cover 6 can be attached to the cylindrical battery 40 in such a procedure.

  Further, as shown in FIG. 9B, first, the independent surface where the through hole 602b exists is placed on the negative electrode side of the cylindrical battery 40 so that the convex portion of the positive electrode of the cylindrical battery 40 penetrates the through hole 601. Then, the semicylindrical part on one side is attached to the cylindrical battery 40. Thereafter, the upper and lower auxiliary covering portions 603 b are brought into close contact with the cylindrical battery 40. Further, the other semi-cylindrical portion is brought close to the cylindrical battery 40, and an independent surface on which the through hole 602 a exists is placed on the negative electrode side of the cylindrical battery 40. Finally, the upper and lower auxiliary covering portions 603a are placed on the cylindrical battery 40 from above the semi-cylindrical portion on which the upper and lower auxiliary covering portions 603a are mounted.

  Even in such a procedure, the cylindrical battery cover 6 can be attached to the cylindrical battery 40.

  9A and 9B, the positive electrode convex portion having a cylindrical shape of the cylindrical battery 40 is passed through the through-hole 601 so that the positive electrode convex portion is engaged. Stopped.

  In the cylindrical battery cover 6, both the independent surface where the through hole 602 a exists and the independent surface where the through hole 602 b exist both have edges that form bent portions around the periphery, and are covered with caps on the ends of the cylindrical battery. It has become. From the viewpoint of ease of mounting, it is preferable that the two cap portions are somewhat larger when covered later. For example, in the procedures shown in FIG. 9A and FIG. 9B, the cap portion where the through hole 602a is present is slightly larger than the cap portion where the through hole 602b is present. easy.

  However, the magnitude relationship between the two cap portions may be a relationship that can be overlapped and covered on the negative electrode side of the cylindrical battery 40 as shown in FIGS. 9 (a) and 9 (b). That is, it is sufficient that the size relationship is within the allowable range of elasticity of the material of the cylindrical battery cover 6. The relationship between the two cap portions in the cylindrical battery cover 6 is that of the cap portion in the cylindrical battery cover 4 of the fourth embodiment and that of the cap portion in the cylindrical battery cover 5 of the fifth embodiment. The same is true for relationships.

  Further, the two “half-cylindrical parts” which are the main parts of the above-described cylindrical battery cover 4, cylindrical battery cover 5, and cylindrical battery cover 6 are not strictly half the shape of a cylinder. Also good. For example, one may occupy 60% of the cylinder and the other occupy 40%. Moreover, it may not be 100% in total. That is, it suffices if there are two semi-cylindrical parts that cover the cylindrical battery so as to form one cylindrical shape. Moreover, even if it cannot fully cover about the part except a through-hole, the effect which reduces the damage of the cylindrical battery use apparatus by a leaking liquid is not lost.

  Moreover, the auxiliary | assistant coating | coated part may not be provided above and below the two semi-cylindrical parts, respectively, but may be above and below one semi-cylindrical part. Furthermore, only one semi-cylindrical part may be provided. Further, the shape may not be a rectangle as shown in FIG.

  Further, even when the auxiliary covering portion is not provided, the protection effect by the semi-cylindrical portion is not lost, and damage to the cylindrical battery using device due to the liquid leakage of the cylindrical battery can be reduced.

  In other words, the auxiliary covering part has a semi-cylindrical shape and user needs. What is necessary is just to determine a number, a shape, and a position according to manufacturing cost.

(Embodiment 7)
Each cylindrical battery cover of the above-described Embodiments 4 to 6 constitutes a main shape as one cylindrical battery cover by combining two semicylindrical portions. Moreover, the auxiliary | assistant coating | coated part is provided so that the seam of two semi-cylindrical parts may be filled.

  However, one semi-cylindrical part and an independent surface which is a part in contact with the end face where the positive electrode or negative electrode of the cylindrical battery is present at both ends of the semi-cylindrical part, and an edge forming a bent part for locking around the independent surface A cylindrical battery cover may be constituted by the upper and lower auxiliary covering portions of the semi-cylindrical portion, and the cylindrical battery cover having such a structure will be described as a seventh embodiment.

  FIG. 10A to FIG. 10C are views showing an overview of the cylindrical battery cover 7 of the seventh embodiment.

  FIG. 10A is a front view of the cylindrical battery cover 7, and FIG. 10B is a view when the cylindrical battery cover 7 is seen from the right direction. 10 (c) is a view when the cylindrical battery cover 7 is viewed from a direction closer to the right side surface.

  As shown in FIGS. 10 (b) and 10 (c), the cylindrical battery cover 7 has a semi-finished surface at both ends, which is a part that contacts the end surface where the positive electrode or the negative electrode of the cylindrical battery is present as a main part. A cylindrical portion is provided, and an edge that forms a bent portion for locking using a cylindrical shape of the cylindrical battery is provided on the periphery of the independent surface in contact with the end surface of the cylindrical battery. Further, when the semi-cylindrical portion is attached to the cylindrical battery, a part of the cylindrical battery is exposed. Furthermore, a through-hole 701 that allows the positive electrode of the cylindrical battery to pass therethrough is present on the independent surface at one end, and a through-hole 702 for energizing the negative electrode is present on the independent surface at the other end. Further, as shown in FIGS. 10A to 10C, auxiliary covering portions 703 exist above and below the semi-cylindrical portion. The two auxiliary covering portions 703 have a shape that covers the exposed portion of the cylindrical battery.

  FIGS. 10 (d) to 10 (f) are diagrams showing a procedure for mounting the cylindrical battery cover 7 of the seventh embodiment on the cylindrical battery. FIG. 10D is a diagram showing an initial procedure for mounting. As shown in FIG. 10 (d), first, the cylindrical convex portion of the positive electrode of the cylindrical battery 40 is locked in the through hole 701, and the edge that forms the bent portion of the circumference of the independent surface is formed on the cylindrical battery 40. Lock to the circumferential side.

  FIG. 10E is a diagram showing a procedure in the middle of mounting. As shown in FIG. 10E, the semi-cylindrical portion is attached to the cylindrical battery 40 by covering the negative surface side of the cylindrical battery 40 with an independent surface where the through hole 702 exists. In addition, the upper and lower auxiliary covering portions 703 are placed on the cylindrical battery 40 so as to wrap the cylindrical battery 40.

  FIG. 10 (f) is a diagram showing a state where the mounting of the cylindrical battery cover 7 to the cylindrical battery 40 is completed.

  In this way, the cylindrical battery cover 7 can be attached to the cylindrical battery 40. As shown in FIGS. 10 (a) to 10 (c), the cylindrical battery cover 7 has a cylindrical shape in which a cylindrical portion having a curved surface partly opened and upper and lower auxiliary covering parts 703 near the opening part. Functions as a battery cover. The auxiliary covering portion 703 is a portion that covers the portion exposed from the cylindrical portion of the cylindrical battery 40 and is also useful for improving the amount of leakage liquid absorbed in the cylindrical battery cover 7.

  As with the cylindrical battery cover 4, the cylindrical battery cover 5, and the cylindrical battery cover 6 of Embodiments 4, 5 and 6, the semicylindrical portion that is the main part of the cylindrical battery cover 7 is It does not have to be exactly half a cylinder. That is, the size of the opening portion of the cylindrical portion may be a size that allows the cylindrical battery to be inserted. Further, the cylindrical battery may not be completely covered with the semi-cylindrical portion and the auxiliary covering portion 703.

  In addition, as in each of the cylindrical battery covers of the fourth to seventh embodiments, a plurality of semi-cylinders constituting the cylindrical battery cover are used instead of reducing the outflow of leakage liquid to the outside of the cover by the auxiliary covering portion. Such a curved surface may be overlapped to suppress leakage of the leaked liquid to the outside of the cover.

  FIG. 11 is a diagram showing an overview of the cylindrical battery cover 8 having two semi-cylindrical curved surfaces having overlapping portions.

  As shown in FIG. 11, the cylindrical battery cover 8 is similar to the cylindrical battery cover 4, the cylindrical battery cover 5, and the cylindrical battery cover 6 described in the fourth, fifth, and sixth embodiments. It has two semi-cylindrical curved surfaces and is connected by a shared surface. However, these two semi-cylindrical curved surfaces do not have an auxiliary covering portion, and are partly overlapped when mounted on a cylindrical battery. Specifically, it is a shape in which a part of each other overlaps in the thickness direction of the cover. Thereby, compared with the case where the overlapping part does not exist, the outflow of the leaking liquid to the outside of the cover can be further suppressed, and the absorption amount of the leaking liquid is improved.

  In the cylindrical battery cover 8 as well, there are through holes through which the cylindrical convex portion of the positive electrode of the cylindrical battery passes through on the shared surface, and there are through holes for energizing the negative electrode on each of the two independent surfaces. You may do it.

  In addition, the effects of the contrivance for providing adhesiveness around the through-hole and the contrivance for applying the non-permeable coating to the outer surface of the cover described in the description of the third embodiment are the same in each of the above-described cylindrical battery covers 4 to 8. Of course it is also demonstrated. That is, the effect of reducing the amount of leakage liquid leaking outside the cover by each device and reducing the damage of the cylindrical battery using device is exhibited.

  In addition, in the cylindrical battery cover of each of the above-described embodiments, the cylindrical battery may be compressed so that it can be easily stored in the battery case of the device. Specifically, the thickness of the cylindrical battery cover is reduced in a dry state by compressing it. Thereby, when the liquid leaks from the cylindrical battery, the cylindrical battery cover can swell and expand to absorb the leaked liquid.

  In addition, in the case of a battery case that houses a plurality of cylindrical batteries, the cylindrical battery cover attached to each of the plurality of cylindrical batteries comes into contact with each other, so that the leaked liquid that flows out from a certain cylindrical battery cover is removed. Other cylindrical battery covers can absorb.

  FIG. 12 is a diagram showing a state where the cylindrical battery cover attached to the cylindrical battery is swollen by absorbing the leaked liquid. For the following description of FIGS. 13 and 14, it is assumed that the cylindrical battery cover 2 whose outer surface is not coated with an impermeable coating is attached.

  As shown in FIG. 12, when the cylindrical battery cover 2 swells, it has a shape corresponding to the shape of the battery case accommodated therein. For example, the entire shape becomes a cylindrical shape as shown in the lower left of the figure, or a square shape as shown in the lower right of the figure.

  The cylindrical battery cover may be processed in advance so as to have a shape corresponding to the shape of the battery case. For example, if the part in which the cylindrical battery is accommodated is a square, the cylindrical battery cover is formed into a shape that matches the square shape in a dry state. Further, it is compressed so as to be as thin as possible. The cylindrical battery cover is attached to the cylindrical battery, and is stored in the battery case so that the corners of the original rectangular shape correspond to the corners in the battery case. By such processing, the cylindrical battery cover can efficiently swell. That is, in the absorption of leaked liquid, the space between the cylindrical battery and the battery case can be efficiently filled, and the absorption efficiency can be improved.

  Since the outer surface of the cover thus swollen is not imperviously coated, leaked liquid from the cylindrical battery oozes out. Let this cylindrical battery cover be A. In such a case, if a cylindrical battery cover (referred to as B) that has room to absorb liquid is in contact with even a small amount, at least a part of the leaked liquid oozing out from A is absorbed by B. Thereby, the expansion of the equipment damage by leaking liquid can be suppressed.

  FIG. 13 is a diagram showing an overview of a general battery case. FIG. 13A is a schematic view of the upper surface of the battery case 50, and FIG. 13B is a view of the battery case 50 viewed from an oblique upper surface.

  Assuming that the battery case 50 shown in FIG. 13 accommodates four cylindrical batteries with the cylindrical battery cover 2 shown in FIG. 12, a case where liquid leakage occurs from one cylindrical battery. This will be described with reference to FIG.

  FIG. 14 is a diagram illustrating a state in which leaked liquid from one cylindrical battery is absorbed by a plurality of adjacent cylindrical battery covers.

  As shown in FIG. 14, four cylindrical batteries each having the cylindrical battery cover 2 attached are accommodated in the battery case 50. In the figure, the dots on the cylindrical battery cover 2 represent a state where the leaked liquid is absorbed. In addition, the more dense the dots, the greater the amount of absorption.

  In addition, in FIG. 14, the five diagrams from the top are diagrams of the first stage to the fifth stage, respectively.

  In a state where no liquid leaks from any cylindrical battery (first stage), liquid leaks from the second cylindrical battery from the right, and the cylindrical battery cover 2 swells (second stage). Next, the leaked liquid oozing out from the surface of the cylindrical battery cover 2 begins to be absorbed by the left and right cylindrical battery covers 2 (third stage).

  Next, the leaked liquid begins to ooze out from the surface of the second cylindrical battery cover 2 from the left, and the leftmost cylindrical battery cover 2 also starts to absorb the leaked liquid (fourth stage). In this way, the liquid leaking from the second cylindrical battery from the right is absorbed not only by the two adjacent cylindrical battery covers 2 but also by the leftmost cylindrical battery cover 2 ( (Fifth stage).

  As described above, the cylindrical battery cover that can absorb the leaked liquid from the outer surface can absorb not only the cylindrical battery contained therein but also the liquid leaked from other cylindrical batteries. Thereby, it becomes possible to absorb the leaked liquid that could not be secured with one cylindrical battery cover with the plurality of cylindrical battery covers. That is, damage due to liquid leakage from the cylindrical battery in the battery using device can be reduced.

  Note that FIG. 14 illustrates liquid leakage in a state where adjacent cylindrical battery covers are in contact with each other. However, even if the cylindrical battery cover is not in contact, a certain cylindrical battery cover is The leaked liquid flowing out from the cylindrical battery cover can be absorbed.

  That is, it is preferable that the liquid leaking out from the other cylindrical battery cover can be absorbed more efficiently when it is preferably in contact. However, even if it is not in contact, if it can be absorbed from the outer surface, the leaked liquid that has flowed out from the other cover for the cylindrical battery can be absorbed, and damage to battery-operated equipment can be reduced. .

  In addition, even if the cylindrical battery covers are not in contact with each other when the battery case is loaded, as a result of absorbing the leaked liquid, it swells and expands and comes into contact with the adjacent cylindrical battery cover, thereby preventing the leakage battery. A cylindrical battery cover that is not attached may absorb the leaked liquid from the contact surface.

  In most cases, the voltage of the cylindrical battery in which the leaked liquid is generated is close to 0, but the voltage may remain in the adjacent cylindrical battery in which no leaked liquid is generated. In this case, if the cylindrical battery cover in which a voltage remains absorbs a large amount of the leaked liquid, a short circuit occurs between the positive electrode and the negative electrode due to the leaked liquid, and power is consumed. This is advantageous in that the voltage applied to the cylindrical battery in which the leaked liquid is reduced, the generation of gas is reduced, and the leak speed of the leaked liquid is reduced. There is a risk of ignition.

  In order to suppress the exothermic ignition, it is possible to add a flame retardant aluminum hydroxide to the cover, or to use a highly flame-retardant polyparaphenylene benzoxazole fiber as one of the materials of the cover. Polyparaphenylene benzoxazole fiber has high flame retardancy and high elastic modulus, but low hygroscopicity, so it can be used together with other water-absorbing fibers such as cotton and vinylon and oil-absorbing fibers such as polypropylene fiber. It becomes possible to produce a cylindrical battery cover having flame retardancy, elasticity, and liquid absorption performance.

  In addition, in order to prevent leakage liquid from penetrating into the adjacent cylindrical battery cover and short-circuiting the positive and negative electrodes of the adjacent cylindrical battery, the cylindrical type in contact with at least one of the positive and negative electrodes of the cylindrical battery The portion of the battery cover may be made nonconductive. For example, the portion that contacts at least one of the positive electrode and the negative electrode of the cylindrical battery may be coated with polyethylene or polypropylene, or the portion that contacts at least one of the positive electrode or the negative electrode of the cylindrical battery may be coated with polyethylene, polypropylene, or the like. It may be formed in a film shape or a plate shape.

  Further, even when a cylindrical battery cover 1, 3, 4, 5, 6, 7 or 8 other than the cylindrical battery cover 2 is used, a cover attached to a battery that does not leak as shown in FIG. It is possible to absorb the leaked liquid.

  FIG. 14 illustrates the case where a plurality of cylindrical battery covers 2 whose outer surfaces are not coated with an impermeable coating are used. However, the outer surface of the cylindrical battery cover is coated with an impervious coating except for a portion outside the circumferential side surface of the cylindrical battery, thereby improving the effect of preventing leakage liquid from flowing out of the cover. In addition, it is also possible to have an effect of absorbing the leaked liquid that has flowed out from the other cylindrical battery cover.

  FIG. 15 is a diagram showing an overview of the cylindrical battery covers A to B to which an impermeable coating is applied except for a part of the outer surface.

  The cylindrical battery covers A to D shown in FIG. 15 are the above-described cylindrical battery covers 2 each having an impermeable coating on the outer surface except a part of the outer side of the circumferential side surface of the cylindrical battery. is there. Further, it is assumed that the battery case 50 shown in FIGS. 13 (a) and 13 (b) contains the cylindrical batteries with the four cylindrical battery covers mounted and arranged in the order of A to D.

  As shown in FIG. 15, the cylindrical battery covers A and D are not partially imperviously coated on the left side. Further, the cylindrical battery covers C and B are not subjected to impermeable coating on both sides. A portion where the impermeable coating is not applied is referred to as an “uncoated portion”.

  That is, the cylindrical battery covers C and B are the same, and the cylindrical battery covers A and D are the same. The cylindrical battery with the cylindrical battery covers B and D attached thereto is loaded into the battery case 50 with the positive electrode side facing away from the positive electrode of the cylindrical battery with the cylindrical battery covers A and C attached. Will be.

  Further, as shown in FIG. 15, it is preferable that the cylindrical battery covers A and D have an uncoded portion only on one side in order to keep the leakage liquid inside the cover. However, as with the cylindrical battery covers C and B, there may be uncoded portions on both the left and right sides, and the leaked liquid that oozes from the uncoded portions of the adjacent cylindrical battery covers is absorbed from its own uncoded portions. The effect of doing is not missed.

  Moreover, even if it is the cylindrical battery cover which gave the impervious coating except for such a part, a leaking liquid can be absorbed, expanding. At this time, as described with reference to FIG. 12, the outer shape changes in accordance with the shape of the battery case. Or you may process so that an external shape may change according to the shape of a battery case.

  FIG. 16 is a diagram illustrating a state in which leakage liquid from the cylindrical battery is absorbed by the entire cylindrical battery covers A to D illustrated in FIG. 15. In the figure, the dots on the cylindrical battery cover 2 represent a state where the leaked liquid is absorbed as in FIG. Also, the more dense the dots, the greater the amount of absorption.

  16 (a) to 16 (e), FIG. 16 (a) is the first stage, FIG. 16 (b) is the second stage, FIG. 16 (c) is the third stage, and FIG. 16 (d) is the first stage. FIG. 16 (e) is the fifth stage, and hereinafter, each of the cylindrical battery covers A to D is simply referred to as “A”, “B”, “C”, and “D”.

  In a state where no liquid leaks from any of the cylindrical batteries (first stage), liquid leaks from the second cylindrical battery from the right, and B swells. Further, the leaked liquid begins to permeate from the left and right uncoated portions of B into the uncoated portions of C and A (second stage). Next, in C and A, the leaked liquid that exudes from B begins to spread inside (third stage).

  Next, the leaked liquid begins to permeate from the uncoated part on the left side of C into the uncoated part of D, and the leaked liquid spreads inside D (fourth stage). In this way, the liquid leaking from the second cylindrical battery from the right is absorbed not only by the adjacent C and A but also by the leftmost D (fifth stage).

  In this way, by providing an uncoated portion in a portion that comes into contact with the adjacent cylindrical battery cover, when the amount of leaked liquid from the cylindrical battery is large, the cylindrical shape adjacent to the cylindrical battery cover is concerned. The leaked liquid is transmitted to the battery cover, and it is possible to prevent or reduce damage to the cylindrical battery using equipment due to the leaked liquid.

  In addition to the non-coated part, the impervious coating is applied, reducing the amount of leaked liquid from the cylindrical battery to the outside of the cover, compared to the case where no treatment is made to prevent liquid from passing through. Is possible. That is, A to D shown in FIG. 15 can prevent or reduce damage to the cylindrical battery using device due to the leaked liquid due to these two effects.

  In addition, for the cylindrical battery covers 3, 4, 5, 6, 7, etc. other than the cylindrical battery cover 2, a similar effect can be expected by producing an uncoated portion in a part of this impervious coating. .

  Further, when a lid is present on the battery case, it is possible to cause the auxiliary absorber to absorb the leaked liquid that cannot be completely absorbed by the cylindrical battery cover A of FIG. 15 using the auxiliary absorber.

  FIG. 17 is a view for explaining a cylindrical battery cover including an auxiliary absorber. In FIG. 17, four cylindrical battery covers to which the cylindrical batteries are attached are A1, A2, A3, and A4, but are the same cylindrical battery cover A.

  As shown in FIG. 17, an uncoated portion of the cylindrical battery cover A on which the cylindrical battery is mounted is directed upward, and a sufficiently thick auxiliary absorber 51 is placed on the cylindrical battery cover A to Close the lid. By this procedure, the auxiliary absorbent body 51 is arranged so that the auxiliary absorbent body 51 contacts the uncoated portion of the cylindrical battery cover A with an appropriate force.

  By doing so, when the amount of leaked liquid is large, the leaked liquid can be absorbed by the auxiliary absorbent body 51 through the uncoated portion. In addition, what was mentioned as a raw material for leaking liquid absorption of the cover for cylindrical batteries should just be used for the raw material of the auxiliary absorber 51.

  Thus, the cylindrical battery cover of this invention is implement | achieved by various shapes like each cylindrical battery cover in Embodiment 1-7.

  In short, the cylindrical battery cover of the present invention is a cylindrical battery cover that is in close contact with the cylindrical battery and covers the cylindrical battery, and a bent portion or a positive electrode cylinder that uses the cylindrical shape of the cylindrical battery for locking. It has a through-hole that penetrates a convex portion that has a shape and is used for locking, and a through-hole for energization of the positive electrode or the negative electrode, has stretchability and liquid absorbability, and may be integrally formed. .

  In addition, it is not necessary to cover the whole area except the positive electrode and the negative electrode of the cylindrical battery, and if at least a part can be covered, the leaked liquid can be absorbed. Further, the close contact referred to here may not be a complete close contact state in the entire cover area, and includes a state where the entire cover for the tubular battery is in close contact with the tubular battery.

  Further, for example, the auxiliary covering portion may be detachable from the semi-cylindrical portion, which is the main part of the cylindrical battery cover, as long as it can be handled as an integral object when attached to the cylindrical battery.

  Each cylindrical battery cover in the above-described first to seventh embodiments can absorb the leaked liquid by its structure, and can reduce damage to the cylindrical battery using device due to the leaked liquid. Moreover, these structures are simple and can be produced at low cost. Furthermore, it is an integrated object and does not require detailed work such as mounting a plurality of parts in combination. Therefore, the user can also easily attach to the cylindrical battery.

  Moreover, the amount of leakage liquid from the cylindrical battery flowing out of the cover can be reduced by processing such as impermeable coating. Needless to say, it is possible to completely prevent the cylindrical battery cover from flowing out of the cover as long as it is within the amount that can be stored inside.

  Further, the shape of the cylindrical battery cover may not be a belt shape, a cylindrical shape, or a semicylindrical shape.

  FIGS. 18A to 18C are diagrams showing examples of shapes other than the shapes of the respective cylindrical battery covers according to the first to seventh embodiments.

  For example, although the cylindrical battery cover 2 in FIG. 3 has a cylindrical shape, it may have a spherical shape as shown in FIG. 18 (a) or an egg-like shape as shown in FIG. 18 (b). It does not matter. If the cover for the cylindrical battery has sufficient elasticity, it will be deformed into a shape close to the shape of the cylindrical battery after mounting, so that it can be used by mounting on the cylindrical battery.

  In other words, there is a through-hole that allows the convex part of the positive electrode having a cylindrical shape of the cylindrical battery to be used for locking even in a hemispherical shape, a semi-egg shape, a rectangular shape, and other shapes. The through-hole for energization and the cylindrical battery insertion slot is sufficiently stretchable, and after inserting the cylindrical battery, the contraction force of the entire cover gives enough contraction force so that the cylindrical battery is not pushed out of the insertion slot. This is because if the periphery of the insertion port has, it is deformed so as to be in close contact with the cylindrical battery by being locked while being extended to the cylindrical battery.

  In this case, if the through-hole for using the convex part of the positive electrode of the cylindrical battery for locking is larger than the diameter of the convex part of the positive electrode, the cover is displaced from the battery to form a gap, and the leaked liquid is likely to leak. Therefore, the through hole for locking the convex part of the positive electrode is of a size that can barely penetrate the convex part of the positive electrode, or the peripheral part of the hole extends and the diameter of the positive hole increases. It is desirable that the size be able to penetrate.

  The arrow directed to the left and right diagonal direction on the left side of FIG. 18 (a) indicates the extending direction of the negative electrode energizing through-hole / cylinder battery insertion hole of the spherical cylindrical battery cover, and the left-pointing arrow indicates The insertion direction of the cylindrical battery with respect to the cylindrical battery cover is shown.

  The arrow pointing in the up and down diagonal direction on the left side of FIG. 18 (b) indicates the extending direction of the negative electrode energizing through-hole and cylindrical battery insertion hole of the egg-shaped cylindrical battery cover. The arrow indicates the insertion direction of the cylindrical battery with respect to the cylindrical battery cover.

  FIG. 18C is a diagram in which the cylindrical battery cover having the spherical and egg-like shape shown in FIGS. 18A and 18B is mounted on the cylindrical battery.

  As shown in FIG. 18 (c), if it is stretchable, it can be attached to the cylindrical battery while being stretched, and can be brought into close contact with the cylindrical battery. Also, the cylindrical convex portion of the positive electrode of the cylindrical battery If the shape of the cover for the cylindrical battery is not cylindrical, the first through-hole that can be locked to the bottom is difficult to slip both during and after mounting. If it has two through-holes, it can function as a cover for a cylindrical battery. That is, the cylindrical battery cover can be manufactured in various forms with emphasis on manufacturing cost.

  Here, it is possible to produce a cover for absorbing a leakage liquid similar to the cover for a cylindrical battery for batteries other than the cylindrical battery. For example, even in a rectangular parallelepiped-like battery, it is possible to produce a cover for preventing or reducing damage caused by leaked liquid on the device used. That is, the present invention aims to provide a rectangular parallelepiped-shaped battery cover that is inexpensive and easy to install, in order to prevent or reduce damage to a rectangular parallelepiped-shaped battery using equipment due to leakage of a rectangular parallelepiped battery. It can also be.

  In other words, a rectangular parallelepiped battery has the same problem as the liquid leakage of a cylindrical battery, and it is important to reduce the damage to the device due to the liquid leakage. However, even if there is a rectangular parallelepiped battery cover that can completely prevent damage due to liquid leakage, if it is expensive, the purchase rate will not increase, and the installation rate of the rectangular parallelepiped battery cover will increase. There is no. Therefore, it is not possible to reduce the rate of liquid leakage damage in the entire device using a rectangular parallelepiped battery. Therefore, a leakage liquid absorbing cover for a rectangular parallelepiped battery will be described below.

  In the case of a rectangular parallelepiped-shaped battery, it is possible to produce a battery cover by using the convex part of the positive electrode and the convex part of the negative electrode for locking. The rectangular parallelepiped shaped battery described here is a battery in which convex portions of a positive electrode and a negative electrode, which are also called square batteries, are on the same plane.

  FIG. 19 is a diagram showing an overview of a battery cover that uses the positive and negative electrode protrusions of a rectangular parallelepiped-shaped battery for locking, and a procedure for mounting the battery cover on a rectangular parallelepiped-shaped battery.

  As shown in FIG. 19, first, (1) the convex portions of the positive electrode and the negative electrode are respectively inserted into the two through holes on the left side of the battery cover 9. Next, (2) While holding the two through holes on the left side with the convex part of the battery, the surface having the two through holes on the right side is pulled from the front side of the battery and locked with the convex parts of the positive and negative electrodes of the battery. To do. In this state, the battery cover 9 is in close contact with the battery due to the stretchability of the battery cover 9. In this way, it is possible to produce a battery cover that can be mounted using the convex portions of the battery other than the cylindrical shape for locking.

  In addition, a bent portion for engaging the rectangular parallelepiped battery is formed on both surfaces of the rectangular parallelepiped battery cover 9 that covers both the positive and negative end faces of the rectangular parallelepiped battery. If there is an edge to be mounted, the attachment of the rectangular parallelepiped battery cover to the rectangular parallelepiped battery is further stabilized.

  In addition, if the edges that form the bent portions for locking the rectangular parallelepiped battery are present on both sides of the rectangular battery cover, the through holes for the positive and negative convex portions can be locked. Even if it does not have, it becomes possible to attach the rectangular parallelepiped battery cover to the rectangular parallelepiped battery.

  Moreover, it is also possible to produce the battery cover having a rectangular parallelepiped shape by applying the form of the cylindrical battery cover 1 of the first embodiment shown in FIG. For example, two through-holes 102 are used and they are referred to as a through-hole 102a and a through-hole 102b. The size of the through hole 102a and the through hole 102b is adjusted so that it can be locked to the convex portion of the negative electrode of the rectangular parallelepiped battery, and the through hole 102a is placed on the right side of the through hole 101a and the right side of the through hole 101b. A through hole 102b is formed. Furthermore, when a rectangular parallelepiped-like battery with a battery cover attached is loaded into the battery loading part of the battery using device, the entire shape of the battery cover may be prepared so that the battery cover does not protrude from the loading part. . In addition, although the through hole 102a and the through hole 102b are formed on the right side of the through hole 101a and the through hole 101b, a rectangular parallelepiped-like battery cover can be manufactured on the left side, the upper side, or the lower side.

  Moreover, it is also possible to produce a rectangular parallelepiped-like battery cover by applying the form of the cylindrical battery cover 2 of the second embodiment shown in FIG. For example, the shape of the battery cover is a rectangular parallelepiped shape, and through holes that can be engaged with the convex portions of the positive electrode and negative electrode of the rectangular parallelepiped battery are formed on the surface facing the insertion hole of the rectangular parallelepiped battery. Two may be prepared. By doing in this way, a rectangular parallelepiped-like battery cover can be produced. That is, a bent portion for locking exists on the surface having the insertion hole, and a bent portion for locking and two through holes for locking exist on the opposite surface.

  Also, in the cylindrical battery cover shown in FIGS. 18a and 18b, two through-holes that can be locked to the positive electrode convex portion and the negative electrode convex portion on the opposite side of the battery insertion hole are produced. The insertion slot is sufficiently stretchable, and after the insertion of the cylindrical battery, due to the contraction force of the cover as a whole, there is sufficient contraction force around the insertion opening so that the cylindrical battery is not pushed out of the insertion slot. For example, it can be used as a battery cover having a rectangular parallelepiped shape.

  Further, it is possible to produce a rectangular parallelepiped-like battery cover by applying the cylindrical battery cover 3 of the third embodiment shown in FIG. For example, the shape of the battery cover is made into a bag shape into which a rectangular parallelepiped battery can be inserted, and the positive electrode convex portion or the negative electrode convex portion of the rectangular parallelepiped battery is locked to each end on the insertion port side. For this purpose, a through hole may be prepared. Of course, a through-hole for engaging with both the positive electrode convex portion and the negative electrode convex portion of a rectangular parallelepiped battery may be produced. By doing in this way, a rectangular parallelepiped-like battery cover can be produced.

  Moreover, it is also possible to produce a rectangular parallelepiped-like battery cover by applying the cylindrical battery cover 7 of the seventh embodiment shown in FIG. The through hole for the convex portion of the positive electrode and the through hole for the convex portion of the negative electrode may be formed on one independent surface, and the shape of the independent surface may be a rectangular shape in accordance with the rectangular parallelepiped battery. The other independent surface also needs to have a rectangular shape, but it is not necessary to create a through hole. By doing in this way, a rectangular parallelepiped-like battery cover can be produced.

  In addition, the independent surface opposite to the independent surface having the through hole for the positive electrode convex portion and the through hole for the negative electrode convex portion requires a bent portion for locking the rectangular parallelepiped battery. The independent surface having the convex portion and the convex portion of the negative electrode may be locked in at least one of the bent portion or the through hole for the convex portion of the positive electrode and the negative electrode.

  As described above, in order to solve the above-mentioned problem, the rectangular parallelepiped battery cover according to the present invention is closely attached to the rectangular parallelepiped battery. A rectangular parallelepiped battery cover that covers a rectangular parallelepiped battery, and is a through-hole for locking the positive and negative convex portions on the same surface of the rectangular parallelepiped battery. It has a stretchability and a liquid absorptivity, and can be integrally formed.

  In addition, in order to solve the above-mentioned problem, the rectangular parallelepiped battery cover of the present invention is in close contact with the rectangular parallelepiped battery, and the rectangular parallelepiped battery cover is different from the cylindrical battery. A battery cover having a rectangular parallelepiped shape covering a battery having a rectangular shape, wherein a bent portion for using the rectangular parallelepiped shape of the rectangular parallelepiped battery for locking, and a positive electrode and a negative electrode of the cylindrical battery are energized. It is also possible to provide a through-hole for this purpose, have stretchability and liquid absorbability, and be integrally formed.

  The sizes of the through holes 401a and the through holes 401b of the cylindrical battery cover 4 according to the fourth embodiment shown in FIG. 6 may be different. Since the locking bent portion exists on each independent surface, it can be attached to the cylindrical battery even if the through hole 401a and the through hole 401b are different in size, and either the through hole 401a or the through hole 401b can be mounted. Even if one side is a through-hole for latching to the convex part of the positive electrode of a cylindrical battery, mounting | wearing to a cylindrical battery is possible. However, in this case, it is necessary to mount the cylindrical battery cover with the positive electrode of the cylindrical battery facing the independent surface side. If either the through-hole 401a or the through-hole 401b is a through-hole for energizing and locking to the convex portion of the positive electrode of the cylindrical battery, the independent surface having the through-hole for locking the convex portion is already present. By attaching to the cylindrical battery so as to be on one of the independent surfaces, it becomes a cylindrical battery cover that is more difficult to shift.

  Moreover, the through-hole 201 which the cylindrical battery cover 2 of Embodiment 2 shown in FIG. 3 has may be a size which does not relate to the engagement of the cylindrical convex portion of the positive electrode of the cylindrical battery 40. If the through hole 201 does not have a locking function with respect to the convex part of the positive electrode, it will be easily displaced and the leakage holding ability will be inferior, but the bent part around the surface having the through hole 201 is the circle of the cylindrical battery 40. The cover can be attached to the cylindrical battery 40 because it is locked to the peripheral side surface. Further, if the through-hole 201 is of a size that can be used for inserting a cylindrical battery in the same manner as the through-hole 202, the cylindrical battery can be inserted from either the through-hole 201 or the through-hole 202. It can be inserted into the cover from either the positive electrode side or the negative electrode side.

  Moreover, the through-hole 701 which the cylindrical battery cover 7 of Embodiment 7 shown in FIG. 10 has may be a size which does not relate to the locking of the cylindrical convex portion existing in the positive electrode of the cylindrical battery 40. If the edge forming the bent portion of the circumference of the independent surface having the through hole 701 is wide enough to be locked to the circumferential side surface of the cylindrical battery 40, the independent surface having the through hole 701 is formed on the cylindrical battery 40. It can be locked. When the through hole 701 is large, the cylindrical battery cover can be mounted regardless of which side of the positive surface of the cylindrical battery 40 is the independent surface having the through hole 701 or the independent surface having the through hole 702.

  Also, in the cylindrical battery cover 8 shown in FIG. 11, a through hole for locking the convex portion of the positive electrode may exist only on one independent surface. In this case, the cover is formed by covering the independent surface with the through-hole for energization on the positive electrode side of the cylindrical battery and then covering the independent surface with the through-hole for locking the convex portion of the positive electrode. It becomes difficult to shift from.

  Moreover, although the example of the integral-type cylindrical battery cover was shown in the cylindrical battery covers 1-7, the cylindrical battery cover may not be integral.

  The positive and negative electrode end members of the cylindrical battery are connected by an elastic body such as rubber, and a sheet-like cover that is an absorber of leakage liquid is sandwiched between the elastic body and the battery, and then the battery is connected to the battery-operated device. Even if it is loaded, the leakage liquid can be effectively absorbed.

  FIG. 20 shows a method of assembling a cylindrical battery cover in which a sheet-like cover as an absorber is sandwiched between an elastic body and a battery.

  FIG. 20A shows a state before the mounting tool 12 for mounting the sheet-like cover on the cylindrical battery is attached to the cylindrical battery.

  The mounting tool 12 includes two donut-shaped end face members 10 that cover both end faces of the cylindrical battery, and four elastic bodies 11 that connect the two end face members 10. The elastic body 11 has a natural length that is shorter than the length of the cylindrical battery to be mounted. When the mounting tool 12 is attached to the cylindrical battery, the elastic body 11 exerts a restoring force so as to press the two end face members 10 against both end faces of the cylindrical battery. .

  First, as shown by the arrows in FIG. 20A, the cylindrical battery is inserted between the positive electrode and negative electrode side end member 10 of the cylindrical battery.

  FIG. 20B shows a state before the sheet-like cover 13 that is an absorbent body is sandwiched between the cylindrical battery and the elastic body 11 of the mounting tool 12. The arrow indicates that the sheet cover 13 is sandwiched between the cylindrical battery and the elastic body 11.

  FIG. 20C shows a state where the sheet cover is sandwiched between the elastic body of the member for sandwiching the sheet cover and the cylindrical battery. Thus, the cylindrical battery cover constituted by the mounting tool 12 and the sheet-like cover 13 is mounted on the cylindrical battery.

  FIG. 20D shows a groove for the elastic body 11 included in the mounting tool 12, and when a cylindrical battery is loaded into a device to be used, a sheet-like cover is placed on a portion corresponding to the upper surface, lower surface, front surface, and rear surface of the battery. The sheet-like cover which enabled it to arrange | position a thin part is shown. By doing so, it becomes easy to attach the sheet cover to the cylindrical battery, and it becomes easy to load the cylindrical battery with the sheet cover attached to the device to be used.

  FIG. 20E is a diagram showing a state in which the mounting tool 12 is used and the sheet cover shown in FIG.

  The advantage of this type of cylindrical battery cover is that a sheet-like cover can be produced by itself. In other words, the integral cylindrical battery cover is basically suitable for a single battery for a single battery and an AA battery for a single battery, and is difficult to attach to other sizes of batteries. However, like the mounting tool 12 shown in FIG. 20 (a), the end face members on the positive electrode and negative electrode side of the cylindrical battery are connected by an elastic body such as rubber. The sheet-like cover can be supplied in advance as a large sheet. Therefore, the user can cut and use the size as he / she likes. As a result, cost can be reduced.

  As described above, the present invention can provide a cylindrical battery cover that is inexpensive and easy to mount, and that reduces damage caused by liquid leakage of the cylindrical battery.

  The battery cover and leakage liquid absorption method of the present invention can prevent or reduce damage to battery-operated equipment due to battery leakage. Therefore, it is useful as a battery cover for battery-operated equipment and a leakage liquid absorbing method. Further, the battery cover of the present invention has a simple structure, can be manufactured at low cost, and is easy to handle. Therefore, it is useful as a battery cover and a leakage liquid absorbing method for many existing devices such as remote controllers for AV devices such as televisions and video decks, toys, flashlights, watches, radios, and the like.

FIG. 1 is a diagram showing an overview of a cylindrical battery cover according to the first embodiment. FIG. 2 is a diagram illustrating a method of mounting the cylindrical battery cover of the first embodiment on the cylindrical battery. FIG. 3 is a diagram showing an overview of the cylindrical battery cover of the second embodiment. FIG. 4 is a diagram illustrating a method of mounting the cylindrical battery cover of the second embodiment on the cylindrical battery. FIG. 5 is a diagram showing an overview of the cylindrical battery cover according to the third embodiment and a procedure for attaching it to the cylindrical battery. FIG. 6 is a diagram illustrating an overview, a shape change, and a procedure for mounting the cylindrical battery cover according to the fourth embodiment. FIG. 7 is a diagram illustrating an overview, a shape change, and a procedure for mounting the cylindrical battery cover according to the fifth embodiment. FIG. 8 is a diagram showing a change in the shape of the cylindrical battery cover and the mounting procedure for the cylindrical battery according to the sixth embodiment. FIG. 9 is a diagram showing two types of attachment procedures for the cylindrical battery cover of the sixth embodiment to the cylindrical battery. FIG. 10 is a diagram showing an overview of the cylindrical battery cover according to the seventh embodiment and a procedure for mounting the cylindrical battery cover on the cylindrical battery. FIG. 11 is a diagram showing an overview of a cylindrical battery cover having two semi-cylindrical curved surfaces having overlapping portions. FIG. 12 is a diagram showing a state where the cylindrical battery cover attached to the cylindrical battery is swollen by absorbing the leaked liquid. FIG. 13 is a diagram showing an overview of a general battery case. FIG. 14 is a diagram illustrating a state in which leaked liquid from one cylindrical battery is absorbed by a plurality of adjacent cylindrical battery covers. It is a figure which shows the general view of the cover for several cylindrical batteries in which the impervious coating was given except for a part of outer surface. FIG. 16 is a diagram illustrating a state in which leakage liquid from the cylindrical battery is absorbed by the entire plurality of cylindrical battery covers illustrated in FIG. 15. FIG. 17 is a view for explaining a cylindrical battery cover including an auxiliary absorber. FIG. 18 is a diagram illustrating an example of a shape other than the shape of each cylindrical battery cover according to the first to seventh embodiments. FIG. 19 is a diagram showing an overview of a battery cover that uses the positive and negative electrode convex portions of a rectangular parallelepiped-shaped battery for locking, and a procedure for mounting the rectangular cover-shaped battery. FIG. 20 shows a method of assembling a cylindrical battery cover in which a sheet-like cover as an absorber is sandwiched between an elastic body and a battery.

Explanation of symbols

1, 2, 3, 4, 5, 6, 7, 8, 9 Cylindrical battery cover 10 End face member 11 Elastic body 12 Mounting tool 13 Sheet-like cover 40 Cylindrical battery 50 Battery case 51 Auxiliary absorber 101a, 101b , 201, 301 a, 301 b, 501 a, 501 b, 601, 701 Through hole for locking and penetrating the positive electrode 102, 202, 302, 502, 602 a, 602 b, 702 Through hole for energizing the negative electrode 401 a, 401 b, 402 Positive electrode Or through-holes 403a, 403b, 503a, 503b, 603a, 603b, 703 for covering the negative electrode

Claims (5)

At least one of a through-hole or a bent portion for locking to the battery has stretchability and absorbability with respect to leaked liquid from the battery. A leakage liquid absorbing method for efficiently absorbing the leakage liquid,
Using the through hole or the bent portion for locking to the battery, and mounting the battery cover on the battery while locking and extending the battery cover;
Shrinking due to the elasticity of the battery cover itself and closely contacting the battery over a wide range;
Loading the battery with the battery cover into a battery loading unit;
The leaking out of the battery from the battery;
The battery cover absorbing the leaked liquid;
The method for absorbing leakage liquid, comprising the step of swelling and expanding the battery cover and spreading in a gap between the battery and the battery loading portion. Using the plurality of battery covers and the leakage liquid absorbing method, the plurality of battery covers sequentially absorb the leakage liquid, so that the leakage liquid diffuses around the battery loading portion of the device using the plurality of batteries. A leakage liquid absorbing method for preventing or suppressing the plurality of battery covers, wherein at least a part of the outer surface has leakage liquid permeability,
Attaching the battery cover to the battery while extending the battery cover using the through hole or the bent portion for locking the battery; and
Shrinking due to the elasticity of the battery cover itself and closely contacting the battery over a wide range;
Loading a plurality of the batteries with the battery cover facing each other with an outer surface portion having leakage fluid permeability at the battery loading portion of a device using the plurality of batteries; and
The leaking out of the battery from the battery;
The battery cover attached to the battery that produced the leaked liquid absorbs the leaked liquid;
The battery cover that has been attached to the battery that has produced the leaked liquid swells and expands, and has a step of spreading in the gap between the battery and the battery loading unit, and the leaked liquid permeability of the swollen battery cover. From the outer surface, the battery cover attached to the nearby battery that does not leak through the outer surface having the leakage liquid permeability of the battery cover attached to the nearby battery that does not cause leakage is the leakage liquid. The method for absorbing leakage liquid according to claim 1, further comprising the step of absorbing The leakage liquid absorbing method further includes a plurality of the batteries having the battery cover attached thereto.
When the battery covers are not in contact with each other, when the battery covers are not in contact with each other, the battery cover attached to the battery that produced the leakage liquid swells and expands. The leakage liquid absorbing method according to claim 2, further comprising a step of contacting a nearby battery cover. The leakage liquid absorbing method further includes, after the plurality of batteries having the battery cover mounted thereon are loaded in the battery loading portion, facing the outer surface of the battery cover having the leakage liquid permeability, By placing a leaking liquid absorber other than the cover,
The leaking liquid absorption method according to claim 2, wherein the leaking liquid absorber absorbs the leaking liquid through the outer surface of the battery cover having the leaking liquid permeability. The leakage liquid absorption method is a leakage liquid absorption method that further reduces a leakage rate of the leakage liquid from the battery that is leaking, and is attached to a battery that does not cause leakage and has sufficient remaining power. The battery cover absorbs the leaked liquid in the range from the positive electrode to the negative electrode, and by short-circuiting the positive electrode and negative electrode of the previous battery where sufficient power remains, power is consumed early and leakage occurs. The leakage liquid absorption method according to claim 2, further comprising a step of reducing a leakage voltage of the leakage liquid from the battery in which leakage occurs by lowering a load voltage applied to the battery.

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