JP2009140740A - Lead-acid storage battery - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a handle parts which can be mounted on a lead-acid storage battery easily inexpensively without becoming an obstacle when loaded on a vehicle and fixed to the storage battery, wherein the storage battery mounted with the handle parts can be mounted on the vehicle and used for a long period until the terminal period of a service-life. <P>SOLUTION: This is a handle structure constituted by only inserting fixing parts made by an insert molding in such a way that the fixing parts are formed at both end parts of a resin fiber made band made by an insert resin molding, insertion ports for the fixing parts of both band ends are formed at both side faces of a cap of the lead-acid storage battery, and a fitting angle of the insertion port and the fixing part is determined so that the angle between the band and the band fixing part becomes a lifting angle of 90° or less. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to a lead-acid battery having a handle for transportation.

  Lead storage batteries are sold with a handle structure added to many products in consideration of maintainability, handling and serviceability. Many products with these handle structures are for the repair market and are not delivered to vehicle manufacturers for mounting on new car assembly lines. The reason why a handle is not necessary for a vehicle manufacturer's line is that a series of processes from the lead-acid battery manufacturer to the vehicle manufacturer's attachment are almost automated, and human hands are not actually required.

  In recent years, the market development of environmentally friendly hybrid vehicles has progressed remarkably, and in accordance with this, the place where lead-acid batteries are mounted is shifting from the conventional engine room to the luggage room. With regard to the luggage room installation, various parts arrangement design is made on the premise of securing the cargo space, and as a result, the high voltage battery unit for electric drive power supply and the lead storage battery for 12V power supply system cannot be easily maintained and detached. Located behind the luggage room.

  As a result, the number of vehicles that can be automatically mounted in the conventional engine room mounted type is difficult to mount automatically in the rearrangement of the luggage room, and it is also difficult to attach and detach during repair and replacement. is there. In response to this situation, there is an increasing demand for a lead storage battery with a handle structure that is selectively installed in a luggage room and that requires mounting that is difficult to attach and detach.

  Until now, many handle structures have been studied in relation to lead-acid batteries. For example, Patent Document 1 and Patent Document 2 show that handle structure parts are used as an integrally molded product by resin molding or the like. Further, Patent Document 3 and Patent Document 4 disclose a structure in which a knitted band material of resin fibers having acid resistance is used for a handle structure part.

  In these conventional cases, in Patent Document 1 and Patent Document 2, when the handle structure part is configured by resin molding, if the handle structure part is mounted and fixed to the vehicle while being mounted on the lead storage battery, the handle structure part itself has a rigidity. However, the lead storage battery cannot be fastened and fixed from the top of the handle, and the last is to remove the handle. As a result, at the time of maintenance or battery replacement, the handle parts removed in the initial stage are mostly discarded and cannot be reused when necessary at a later date.

  On the other hand, those using a resin fiber knitted band material having acid resistance as a handle part as in Patent Document 3 and Patent Document 4 have high flexibility, and can be mounted on a vehicle even with the handle part mounted. On the other hand, in order to maintain the reliability by fixing the handle material to the lead-acid battery, it is necessary to consider the attachment structure of the band type handle, and the adoption of a complicated locking structure also affects the cost of the handle and the installation man-hour. It is exerting.

Furthermore, a method has been devised in which the band material tip is folded and sewn, a large hook is provided on the lead storage battery, and the folded part is hooked through the band material. Since a protrusion must be provided on the side surface of the lead storage battery for hooking the lead, and the vehicle layout design of the lead storage battery based on this protrusion is required, this affects the degree of freedom in vehicle design.
Japanese Patent Laid-Open No. 11-40121 JP 2000-223101 A JP-A-10-289701 JP-A-10-223193

  As described above, the present invention supplies a handle part that can be mounted on a vehicle until the end of its life without attaching a handle part to the lead-acid battery without causing an obstacle when mounted on the vehicle as described above. In addition, it is desirable to have a structure that can be supplied without selectively attaching handle parts even to vehicles that can be automatically mounted without requiring handle parts. However, in the lead-acid battery, there is a problem that the hook part for mounting the handle part protrudes and affects the vehicle mounting design.

  In order to solve the above-described problem, the invention according to claim 1 of the present invention is provided with a fixed portion by insert resin molding at both ends of a knitted band made of acid-resistant resin fibers, and on both sides of a lead-acid battery. When the both ends of the band have an insertion port corresponding to a fixing portion by resin molding, and the fixing portion is fitted to the insertion port, the angle between the band and the molding portion is 90 ° or less. The lead acid battery which has the handle structure comprised by inserting the said fixing | fixed part in the said insertion port so that it may become.

  In the invention according to claim 2 of the present invention, the fixing part formed by the insert resin molding is provided with a locking convex part, and the insertion hole on the side surface of the storage battery is provided with a fitting hole facing the locking convex part. The lead-acid battery according to claim 1, wherein the handle is structured so that it cannot be removed after being inserted once by fitting.

  The invention according to claim 3 of the present invention is the lead storage battery according to claim 1 or 2, characterized in that the outlets on both sides of the lead storage battery are provided in the cover for the storage battery, The invention according to claim 4 of the present invention is such that the outlets on both sides of the lead-acid battery are present inside the lead-acid battery, and when the handle is not attached to the lead-acid battery, the external dimensions are not affected. The lead acid battery according to claim 3, wherein the lead acid battery is characterized.

  The lead storage battery provided with the carrying handle according to the present invention has the above-described configuration, and a resin fiber knitted band material is used for the handle part, so that the degree of freedom in shape is obtained and the lead storage battery protrudes from the outer dimensions of the lead storage battery. By providing a handle part insertion part in the lead storage battery, it is possible to mount the vehicle with a highly reliable handle part mounted, and to obtain a common type lead storage battery that can also select the necessity of mounting the handle part It is possible to achieve a remarkable effect that the degree of design freedom on the vehicle side can be obtained.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. FIG. 1 is a view showing an appearance of a lead storage battery according to an embodiment of the present invention. A lid 2 is integrally welded to the upper part of the battery case 1, and an insertion port 4 for attaching the handle part 3 to the inside of the battery is provided on both sides of the lid 2.

  The lead storage battery in FIG. 2 is a diagram showing the appearance of the lead storage battery in a state where no handle is mounted, and is the same as the lead storage battery shown in FIG. 1 in which the handle part 3 is not mounted. FIG. 3 is a view showing the handle of the present invention. When the handle part 3 is selectively attached to the lead storage battery of FIG. 2 as necessary, the configuration of the lead storage battery with the handle part 3 of FIG. 1 is obtained.

  FIG. 4 is a view showing a detailed cross section of the handle and the handle insertion portion in FIG. 1. The handle part 3 uses polypropylene resin on both sides of the fiber band 3a made of polypropylene resin and the resin fiber band 3a in the same manner, and forms an insert molding part 3b to integrate the bands. A locking projection 3c is provided on the upper part.

  On the other hand, it is possible to insert and insert the upper portion of the insertion port 4 provided in the lid 2 by simply inserting the insert molding portion 3b from the A side so that the insert molding portion 3b of the handle part 3 is not easily removed after being inserted. The fitting hole 5 is provided at a position corresponding to the locking convex part 3c, and the locking convex part 3c is locked in the fitting hole 5, so that the load handling strength is high and the structure is excellent in reliability. . If there is no locking portion of the locking convex portion 3c, the handle mounting portion is subjected to a simple fitting design with only the contact resistance of the outer peripheral surface of the insert molding portion 3b. When handling lead-acid batteries, it is conceivable that accidents such as dropping of the battery due to removal of the handle may occur.

  Moreover, although it has the locking function by the fitting hole 5 provided in the position facing the latching convex part 3c by this invention, considering the mass productivity, the material of these fitting parts is cost. Polypropylene resin having excellent properties and processability is optimal. On the other hand, as a quality problem, if the resin fiber band 3a is to be pulled out in the direction opposite to the insertion direction A of the insert molding part 3b, the convex part of the locking convex part 3c is crushed and no longer functions as a lock. If it comes off from the mouth 4 when handling the cargo in the market, it is most worried that an accident will occur.

  As described above, the following test was performed on the reliability when a force was applied in the pulling direction. Using a test battery having a structural design that matches the D23 type described in JIS D5301 starting lead-acid battery, using a prefabricated polypropylene fiber band with a width of 15 mm and a thickness of about 1.5 mm. The resin of the fixed part by insert molding was also a polypropylene resin material used for a battery case or lid for a normal lead-acid battery. Further, the depth of the fixed part by insert molding was set to about 15 mm, the width was 20 mm, and the maximum thickness was about 6 mm, and the fixed part by insert molding was inserted until the locking convex part was fitted into the insertion port of the lid. The tensile strength was investigated by changing the angle with the band when the fixed part was fitted to the insertion port.

  The results are shown in FIG. 5 as the results of the tensile strength test for each angle with the handle part mounted on one side. FIG. 5 shows a structure according to the present invention, in which a fixed part by insert molding is inserted on one side, the angle of the lead-in battery and the handle of FIG. It is a result. From this result, at an angle of 90 ° or less, the tensile strength is a value obtained by fracture of the material and has no effect on the pulling angle, and becomes a stable value, but as the tensile angle is expanded, the tensile strength decreases proportionally, In the case of 180 °, that is, the tensile strength that means the drawing in the direction opposite to the insertion direction, only about 1/5 or less of the tensile strength of 90 ° or less was obtained.

  The main factor of the above decrease in tensile strength is due to the disengagement due to the crushing of the locking convex part. In addition, the expected design strength by the structure itself can be obtained 100%. In addition, even if the height including the locking convex portion was changed, the fitting portion was broken due to insufficient strength of the lid insertion port, or it was the same tendency that the locking convex portion collapsed. .

  Similarly, FIG. 6 shows the validity of the design designed to have a tensile strength of 90 ° or less. FIG. 6 shows the results of a tensile strength test in a state where handle parts are mounted on both side surfaces of the insertion port for each angle. This test is a test in which handle parts are attached to both sides of the lead-acid battery, and the center part of the handle is pulled upward so as to lift the lead-acid battery in the same manner as in a normal load handling state. In addition, in order to obtain the angle X, various angles were obtained by cutting the digging angle of the lid insertion port, and a tensile test was performed.

  As a result, at an angle of 90 ° or less, the tensile strength was a numerical value due to material breakage and was a stable value without affecting the pulling angle, and at an angle of 120 ° or more, it was disengaged due to the crushing of the locking portion. In the middle part of 95 ° to 115 °, there was a mixture of crushing of the locking part and breakage of the material part. Thus, also in the test result shown in FIG. 6, the result similar to the tendency of FIG. 5 was obtained. In other words, the strength decreases as the pulling angle is increased, but it has been found that the maximum strength of the handle structure can be obtained by setting the angle to 90 ° or less.

  In the actual product design, as a method of keeping the tension angle of 90 ° or less, after inserting the fixing part by insert molding on both side surfaces, the resin fiber band is pressed and flattened, and the back side of the fixing part by insert molding is slack. It is sufficient to set the length in advance so that there is no such thing. That is, if the length of the resin fiber band that can be pulled from the back side of the fixed portion by insert molding is such that it does not have a margin, the insert molding can be performed integrally.

  The dimension of the margin in the configuration of the embodiment of the present invention can be kept at a slack of about 10 mm at the maximum in a state where the band material is pressed and crushed. And cannot be pulled substantially in the 180 ° direction. In this state, pulling out with a force exceeding the tensile strength of 10 kgf shown in FIG. 5 is impossible.

  As a result of the above, the angle at which the strength is effectively drawn up to the design value of the handle component and the structure itself has become clear, so when designing a mass-produced product, the material should be based on the mass of the lead storage battery and the required strength on the user side The rigidity selection, the structure size, etc. may be appropriately designed. Incidentally, since it can be designed compactly, there is no concern about interference with the battery component arrangement, and the installation design of the insertion port provided in the lid for storing the size of the fixed part by insert molding can be obtained relatively easily.

  Note that the insertion port for attaching the handle in the present invention is provided in the lid and can be installed in the battery case. However, in reality, the mold structure becomes complicated and the electric power including molding productivity and parts cost is included. Installation in the tank is not preferred. Furthermore, for vehicles that do not require a handle according to the present invention, the lead storage battery itself can be shared simply by selecting not to mount the handle, so that it has a structure that can be attached to the user's handle based on production standardization. Lead acid batteries can be provided.

  In addition, since a flexible resin fiber band is used, the band is placed on the top surface of the lead-acid battery, so that it can be mounted on the vehicle with the handle parts mounted, and can be mounted on the vehicle until the end of its service life. The band can be used to pull out from a narrow luggage room.

  The lead-acid battery equipped with the handle for transportation according to the present invention is a lead that is inexpensive and highly productive, and can be easily and properly selected according to the user's mounting requirements, and has a highly reliable handle structure. A storage battery can be provided, and its industrial value is high.

The figure which shows the external appearance of the lead acid battery of this invention The figure which shows the external appearance of the lead storage battery in the state where the handle is not attached The figure which shows the handle of this invention The figure which shows the detailed cross section of a handle and a handle insertion part The figure which shows the tensile strength test result according to angle in the state where the handle part is attached to one side The figure which shows the tensile strength test result in the state where the handle part is installed in both sides of the insertion opening according to angle

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Battery case 2 Lid 3 Handle part 3a Resin fiber band 3b Insert molding part 3c Locking convex part 4 Insertion slot 5 Fitting hole

Claims (4)

Both ends of the knitted band made of acid-resistant resin fibers are integrally provided with a fixed portion by insert resin molding, and both sides of the lead storage battery have insertion ports corresponding to the fixed portions by resin molding at both ends of the band, A handle configured by inserting the fixing portion into the insertion port so that the angle between the band and the resin molding portion is 90 ° or less when the fixing portion is fitted into the insertion port. Lead-acid battery with structure. The fixing portion formed by the insert resin molding is provided with a locking convex portion, and the insertion port on the side surface of the storage battery has a fitting hole facing the locking convex portion. The lead-acid battery according to claim 1, wherein the lead-acid battery has a structure that cannot be removed after insertion. The lead-acid battery according to claim 1 or 2, wherein the outlets on both sides of the lead-acid battery are provided in a cover for the battery. The lead-acid battery according to claim 3, wherein the insertion holes on both sides of the lead-acid battery are present inside the lead-acid battery and have a shape that does not affect the external dimensions when a handle is not attached to the lead-acid battery. .

Images