JP5299401B2 - Storage battery handle connection structure and lead storage battery with handle - Google Patents

Description

  The present invention relates to a lead-acid battery with a handle and a handle connection structure thereof.

  Lead-acid batteries that are in great demand as automobile cell starters and drive sources (including auxiliary power supplies) have a high specific gravity because the main material is lead. Therefore, the distribution stage from distribution to sales, as well as the convenience of cargo handling in equipment and vehicles, are also important functions. In order to meet this demand for convenience, lead-acid batteries with handles suitable for carrying and replacement have been developed. In particular, logistics and distribution companies that handle many lead storage batteries on a daily basis, and mass retailers such as car shops and home centers often desire lead storage batteries with handles, so demand is also firm.

  Lead-acid batteries for automobiles including those for repair are distributed and sold in a state of being packed in an outer box such as cardboard. That is, it is desirable that the handle can be hung even when it is packed in the outer box, when it is taken out from the outer box, or even after it is taken out. If this handle comes off during distribution, sales or work and the lead acid battery falls, not only will the lead acid battery itself be damaged, but the human body may be damaged.

  On the other hand, after the lead-acid battery is mounted on the vehicle, a heat insulating cover that protects the lead-acid battery from the heat of the engine may interfere with a handle attached to the lead-acid battery. In the case of a liquid lead-acid battery, the handle becomes an obstacle during rehydration as maintenance. In view of the above, it is also important that the handle can be easily removed from the lead-acid battery.

  In order to satisfy the above-described two demands (sturdy attachment and ease of removal), a connection structure in which a handle can be attached and detached from the storage battery with one touch is disclosed (for example, Patent Document 1).

Japanese Patent No. 3678546

  However, in the lead storage battery configured in accordance with the contents of Patent Document 1, there is a problem that when the load is applied to the handle by mistake from above, the engagement end portion of the handle is easily detached from the battery case locking tool. I understood.

  The present invention solves the above-mentioned problem, and even if a load is applied to the handle by mistake from above, the handle's engaging end does not come off from the battery case locking tool and is a highly convenient handle. The purpose is to supply lead-acid storage batteries.

  In order to solve the above-mentioned problems, the invention according to claim 1 of the present invention includes a battery case or a lid provided with locking devices on the outer surfaces of opposing side walls, and engaging end portions at both ends of the belt portion. A storage battery handle connection structure comprising a handle provided and connecting a handle to a battery case or a lid by engaging a locking tool and an engaging end, respectively. A bent portion that is bent toward the side, and is connected to a leg portion that has a swollen head that protrudes outward from the side wall above the bent portion, and a terminal portion of the belt portion and a leg portion adjacent to the leg portion. While the end portion protruding in the width direction is provided at the engagement end portion, between the pair of retaining pieces and the pair of retaining pieces bent in parallel to the outside of the side wall and bent so that the tips are opposed to each other A groove comprised of By inserting the leg part into one of the parts and making the lower surface of the swollen head face the upper edge of the retaining piece, the upper edge of the terminal part is brought into contact with the lower edge of the pair of retaining pieces. Is fixed to the battery case or lid, and the belt part can be inserted into and removed from the groove by pressing the expansion head inward in the width direction and pulling the handle downward. It is characterized by being.

  The handle is usually made of resin. Just as in Patent Document 1, the engagement piece is inserted into the space surrounded by the retaining piece and the side wall and only a part of the engagement end is brought into contact with a part of the locking tool. If a load is accidentally applied to the handle, the engaging end portion is easily removed from the locking tool before the belt portion is bent due to the hardening of the resin. Therefore, by inserting a leg portion into a space surrounded by a pair of side walls facing each other and a pair of retaining pieces bent so as to face each other, the bottom surface of the swelling head faces the upper edge of the retaining pieces, The load applied to the handle by mistake from above is converted into a load where the lower surface of the swollen head presses the upper edge of the retaining piece, and the cured resin (belt part) can bend sufficiently. The engaging end portion cannot be detached from the battery case locking tool. In order to achieve the above effect when one leg is provided at each engagement end, the leg is installed so that it is point-symmetric with respect to the center of gravity on the upper surface of the lid. It is desirable to connect.

  Furthermore, when you want to remove the handle, such as replenishing water from the liquid stopper on the top of the lid, press the expansion head inward in the width direction and pull the handle downward to remove it from the groove. The handle can be removed by inserting and removing the belt part in and out.

  Note that the thickness of the leg portion needs to be smaller than the height of the space portion. When the thickness of the leg portion is equal to or greater than the height of the space portion, it is difficult to insert the leg portion, and the swelling head cannot be guided to a predetermined position. Further, the thickness of the swelling head needs to be larger than the height of the space portion. When the thickness of the swollen head is equal to or less than the height of the space portion, the lower surface of the swollen head cannot be opposed to the upper edge of the retaining piece, and the handle is easily detached by a load from above.

  According to a second aspect of the present invention, in the handle connection structure for the storage battery according to the first aspect, a pair of leg portions are provided on both sides of the belt portion at the engagement end portion, and a pair of leg portions are provided on both of the space portions. It is made to insert.

  The configuration of claim 2 is adopted rather than the configuration in which the legs are placed one by one and the lower surface of the swollen head is opposed to the upper edge of the retaining piece so as to be point-symmetric with respect to the center of gravity on the upper surface of the lid. This is more preferable because it can withstand loads not only from above but also obliquely.

  According to a third aspect of the present invention, in the handle connecting structure for a storage battery according to the first aspect, the outer surface of the swollen head has an arc shape whose width becomes narrower toward the tip.

  The process of inserting the leg part into the space part includes the first stage where the tip of the swollen head is in contact with the lower end of the inner surface of the retaining piece, and the outer surface of the swollen head is inserted while rubbing against the inner surface of the retaining piece. It is divided into the 2nd stage which advances. If the outer surface of the swollen head has an arc shape whose width becomes narrower toward the tip, it is possible to smoothly shift from the first stage to the second stage without pressing the swollen head inward in the width direction.

  The invention according to claim 4 of the present invention is the storage battery handle connection structure according to claim 1, wherein a gap is provided between the leg portion and the belt portion, and the gap is gradually reduced from the terminal portion to the swelling head. It is characterized by.

  In the process of inserting the leg part into the space part, if a gap is provided between the leg part and the belt part and this gap is gradually reduced from the terminal part to the swelling head, the leg part will bend and the Insertion proceeds smoothly. At the same time, when the handle is removed from the storage battery, the amount of deformation when the expanding head is pressed inward in the width direction is large, so that the removal proceeds smoothly.

  The invention according to claim 5 of the present invention is characterized in that, in the handle connecting structure of the storage battery of claim 1, substantially no gap is provided between the leg portion and the belt portion.

  By eliminating substantially no gap between the leg and the belt, the leg is less likely to bend and the swollen head once inserted is less likely to come off, making the battery and handle more easily mounted. become.

  According to a sixth aspect of the present invention, there is provided an electrode plate group comprising a positive electrode, a negative electrode, and a separator, a battery case having a plurality of cell chambers for storing a plurality of electrode plate groups, an electrolyte, A connecting part for connecting the electrode plate group in series and / or in parallel, a lid provided with a positive terminal and a negative terminal and joined to the upper surface of the battery case opening, and a handle for hanging the battery case or the cover. A lead-acid battery with a handle, which has a pair of retaining pieces that protrude parallel to the outside of the side wall of the battery case or the opposite side wall of the lid and are bent so that the tips are opposed to each other, and a pair of Each is provided with a locking tool consisting of a groove formed between the retaining pieces, and the handle has a shape in which engagement ends are provided at both ends of the belt part, and is bent outward at any part of the handle. Provided with a bulging head that protrudes outward from the side wall. A pair of retaining pieces and side walls are provided at the engaging end portion with a leg portion located above the curved portion, and a terminal portion projecting in the width direction while being connected to each end portion of the belt portion and the adjacent leg portion. A leg is inserted into one of the spaces enclosed by the bracket, the lower surface of the swollen head is made to face the upper edge of the retaining piece, and the upper edge of the terminal end is brought into contact with the lower edge of the pair of retaining pieces. By making contact, the handle was fixed to the battery case or lid, and the belt part could be inserted into and removed from the groove by pulling the handle downward while pressing the expansion head inward in the width direction. It is characterized by.

  The lead storage battery with a handle of claim 6 can be obtained by providing the latch in the battery connection structure of the storage battery of claim 1 on the battery case or lid of the lead storage battery.

  According to claim 7 of the present invention, in the lead-acid battery with handle according to claim 6, a pair of leg portions are provided on both sides of the belt portion at the engagement end portion, and the pair of leg portions are fitted in both of the space portions. It was made to be characterized.

  The lead-acid battery with a handle according to claim 7 can be obtained by providing the engaging end in the handle connection structure for the battery according to claim 2.

  According to an eighth aspect of the present invention, in the lead-acid battery with a handle according to the sixth aspect, the outer side surface of the swollen head has an arc shape whose width decreases toward the tip.

  The lead-acid battery with a handle according to claim 8 can be obtained by providing the engaging end (specifically, the expanded head) in the handle connection structure for the battery according to claim 3.

  The invention according to claim 9 of the present invention is the lead-acid battery with handle according to claim 6, wherein a gap is provided between the leg portion and the belt portion, and the gap is gradually reduced from the terminal portion to the swelling head. Features.

  By making the positional relationship between the leg portion and the belt portion as in claim 4, the lead-acid battery with handle of claim 9 can be obtained.

  The invention according to claim 10 of the present invention is characterized in that, in the lead-acid battery with handle according to claim 6, substantially no gap is provided between the leg portion and the belt portion.

  By making the positional relationship between the leg portion and the belt portion as in claim 5, the lead-acid battery with handle of claim 10 can be obtained.

  According to the present invention, even if a load is applied to the handle by mistake from above, the engaging end of the handle does not come off from the latch of the battery case, so the convenience of the lead-acid battery with the handle is enhanced.

(A) The figure which shows the structure which does not have a handle in an example of the handle connection structure of this invention, and the lead acid battery with a handle, (b) The enlarged view which shows a locking tool, (c) The figure which shows the structure just before connecting a handle, (D) The figure which shows the structure after connecting a handle, (e) The figure of a handle, (f) The enlarged view which shows an engaging edge part The figure which shows the structure after connecting the handle in an example of the handle connection structure and lead acid battery with a handle of this invention The figure which shows an example of the preferable positional relationship of the leg part and belt part in the handle connection structure and lead acid battery with a handle of this invention. The figure which shows the other example of the preferable positional relationship of the leg part and belt part in the handle connection structure and lead acid battery with a handle of this invention.

  Hereinafter, the configuration of a lead storage battery according to an embodiment of the present invention will be described with reference to the drawings. In addition, although each embodiment of this invention describes the example which applied this invention to the liquid type lead acid battery for engine starting of 12V in which the 2V cell was connected in series inside the battery, the lead acid battery with a handle of this invention is described. The number and arrangement of the cells constituting the battery are examples, and should be determined appropriately according to the desired voltage and shape, and the number of cells, cell connection form or cell arrangement, and further, the control valve type lead storage battery Variations such as selected cases are also included in the scope of the present invention as long as they have the configuration of the present invention.

  FIG. 1 is a diagram showing an example of the best mode of a handle connection structure and a lead-acid battery with a handle according to the present invention. Specifically, FIG. 1 (a) shows a configuration without a handle, FIG. 1 (b) shows an enlarged view of a locking tool, FIG. 1 (c) shows a configuration immediately before connecting the handle, and FIG. 1 (d). Fig. 1 (e) shows the structure after the handle is connected, and Fig. 1 (f) shows an enlarged view of the engaging end. In addition, in order to describe in detail the internal configuration of the lead-acid battery with a handle, FIGS. 1A, 1C, and 1D are shown in a partially invisible form.

  A lead-acid battery 1 with a handle includes an electrode plate group 2 composed of a positive electrode 2a, a negative electrode 2b, and a separator 2c, and a plurality of cell chambers for housing a plurality of electrode plate groups 2 (configured between two walls 3a). A battery case 3, an electrolyte solution (not shown), a connecting part 4 for connecting a plurality of electrode plate groups 2 in series and / or in parallel, a positive terminal 5a, a negative terminal 5b, and a liquid plug 5c. The lid 5 is provided and joined to the upper surface of the opening of the battery case 3, and the handle 6 for hanging the battery case 3.

  The positive electrode 2a is made of a lattice made of lead or a lead alloy and lead dioxide. The negative electrode 2b is made of a lattice made of lead or a lead alloy and spongy lead. The separator 2c is made of glass fiber or various resins. The electrode plate group 2 is configured by alternately facing the positive electrodes 2a and the negative electrodes 2b via the separators 2c.

  The electrolytic solution is an aqueous solution containing sulfuric acid as a main component. Moreover, the connection component 4, the positive electrode terminal 5a, and the negative electrode terminal 5b consist of lead or a lead alloy.

  The liquid stopper 5c is made of a resin such as polypropylene or a rubber material such as ethylene propylene diene rubber, and can be removed at the time of water replenishment (replenishment of water corresponding to hydrolysis accompanying overcharge) as maintenance. Furthermore, the battery case 3 and the lid 5 are made of a resin such as polypropylene or acrylonitrile-butadiene-styrene.

  Locking tools 7 are provided on the outer surfaces of the opposite side walls 3b of the battery case 3, respectively. The locking tool 7 has a pair of retaining pieces 7a that are projected in parallel outward from the side wall 3b and bent so that their tips are opposed to each other, and a groove 7b that is formed between the pair of retaining pieces 7a. Consists of.

  The handle 6 has a shape in which engagement end portions 9 are provided at both ends of the belt portion 8, and a bent portion 10 that is bent outward is provided in a part of the handle 6. The engagement end portion 9 includes a pair of leg portions 9a having a bulging head portion 9b protruding outward from the side wall 3b above the bent portion 10, a belt portion 8 and a pair of leg portions 9a disposed on both sides thereof. The terminal portion 9d protrudes in the width direction while being connected to each terminal.

  Here, the leg portion 9a is fitted into the space surrounded by the retaining piece 7a and the side wall 3b, and the lower surface 9c of the swelling head portion 9b is opposed to the upper edge of the retaining piece 7a, and the upper edge of the end portion 9d. Is brought into contact with the lower edges of the pair of retaining pieces 7a so that the handle 6 can be fixed to the battery case 3 lid. In addition, the expansion | swelling head 9b is provided above the bending part 10, and insertion of the leg part 9a becomes smooth.

  On the other hand, by pressing the expansion head 9b inward in the width direction and pulling the handle 6 downward, the belt portion 8 can be inserted into and removed from the groove 7b, and the handle 6 can be removed.

  The handle 6 is usually made of resin. Just as in Patent Document 1, the engagement piece is inserted into the space surrounded by the retaining piece and the side wall and only a part of the engagement end is brought into contact with a part of the locking tool. If a load is accidentally applied to the handle, the engaging end portion is easily removed from the locking tool before the belt portion is bent due to the hardening of the resin. Therefore, as shown in FIG. 1, the leg portion 9a is inserted into the space surrounded by the retaining piece 7a and the side wall 3b, and the lower surface 9c of the swollen head portion 9b is opposed to the upper edge of the retaining piece 7a. The load applied to the handle 6 by mistake is converted into a load in which the lower surface 9c of the swelling head 9b presses the upper edge of the retaining piece 7a, and the cured resin (belt portion 8) can be sufficiently bent. Therefore, the engagement end portion 9 cannot be detached from the locking tool 7. In order to make such an effect stand out, the outer surface of the swollen head 9b protrudes in the width direction from the leg 9a, and the lower surface 9c of the swollen head 9b facing the upper edge of the retaining piece 7a. It is preferable to increase the area.

  Unlike FIG. 1, in order to achieve the above effect when one leg portion 9 a is provided at each engagement end portion 9, the point is symmetrical with respect to the center of gravity on the upper surface of the lid 5. It is desirable to install the leg 9a and connect the handle 6. However, two leg portions 9a are provided so as to sandwich the belt portion 8, and a pair of leg portions 9a are fitted into both the space portion surrounded by the retaining piece 7a and the side wall 3b so that the lower surface 9c of the swelling head portion 9b is both In both cases, the configuration of FIG. 1 facing the upper edge of the retaining piece 7a is more preferable because it can withstand a load not only from above but also from an oblique direction.

  The thickness of the leg portion 9a needs to be smaller than the height of the space surrounded by the retaining piece 7a and the side wall 3b. When the thickness of the leg portion 9a is equal to or greater than the height of the space portion, it is difficult to insert the leg portion 9a, and the swelling head 9b cannot be guided to a predetermined position. Moreover, the thickness of the swelling head 9b needs to be larger than the height of the space portion. When the thickness of the swollen head portion 9b is equal to or less than the height of the space portion, the lower surface 9c of the swollen head portion 9b cannot be opposed to the upper edge of the retaining piece 7a, and the handle 6 is easily detached due to a load from above.

  Further, as shown in FIG. 1, it is preferable that the outer surface of the swollen head 9b has an arc shape whose width becomes narrower toward the tip. The process of fitting the leg 9a into the space surrounded by the retaining piece 7a and the side wall 3b includes a first stage in which the tip of the swelling head 9b contacts the lower end of the inner surface of the retaining piece 7a, This is divided into a second stage in which the insertion proceeds while the outer surface rubs against the inner surface of the retaining piece 7a. If the outer surface of the swollen head 9b has an arc shape whose width decreases toward the tip, it is possible to smoothly shift from the first stage to the second stage without pressing the swollen head inward in the width direction.

  In addition, although the form which provided the locking tool 7 in the outer surface of the side wall 3b of the battery case 3 was shown in FIG. 1, even if it is the form which provided the locking tool 7 in the side wall 5d of the lid | cover 5 like FIG. Needless to say, the effects of the present invention can be obtained.

  FIG. 3 is a diagram illustrating an example of a preferable positional relationship between the leg portion 9a and the belt portion 8 in the lead-acid battery with a handle according to the present invention. Specifically, a gap 9e is provided between the leg portion 9a and the belt portion 8, and the gap 9e is gradually reduced from the terminal end portion 9d to the swelling head portion 9b.

  If it is the form of FIG. 3, in the process of inserting the leg part 9a in the space part enclosed by the retaining piece 7a and the side wall 3b, the leg part 9a will bend, and insertion of the expansion head 9b will advance smoothly. become. At the same time, when removing the handle 6 from the lead-acid battery 1 with a handle, the amount of deformation (movement distance of the expanded head 9b) is large when the expanded head 9b is pressed inward in the width direction. Will go smoothly. That is, the form of FIG. 3 is suitable for a use situation in which the handle 6 is frequently attached and detached, although a slight rattling occurs when the handle 6 is attached due to the presence of the gap 9e.

  FIG. 4 is a diagram showing another example of a preferable positional relationship between the leg portion 9a and the belt portion 8 in the lead-acid battery with a handle according to the present invention. Specifically, a gap is not substantially provided between the leg portion 9 a and the belt portion 8.

  Since the leg portion 9a is difficult to bend in the form of FIG. 4, the swollen head portion 9b is unlikely to come off in a state where the leg portion 9a is fitted into the space surrounded by the retaining piece 7a and the side wall 3b, and the lead with handle The mountability of the handle 6 in the storage battery 1 becomes stronger. That is, although the form of FIG. 4 is difficult to attach and detach the handle 6 due to the absence of the gap 9e, it is suitable for the usage situation in which the attachment and detachment of the handle 6 are not frequently performed and the strong mounting property is utilized. Will be.

  As shown in FIG. 4, if the leg portion 9a and the belt portion 8 are integrated at the contact portion with the terminal end portion 9d, it is assumed that “substantially no gap is provided” in the present invention. In FIG. 4, the lower portion of the leg portion 9 a is slightly separated from the belt portion 8 due to chamfering caused by the necessity of resin molding, but this state is not referred to as “providing a gap” in the present invention.

  The present invention can be used for various types and types of lead-acid batteries including control valve-type lead-acid batteries. However, since stable attachment and removal of the handle can be repeated, it is necessary to replenish water from the liquid spigot provided on the upper surface of the lid. It can be said that it is particularly useful in a liquid lead acid battery.

DESCRIPTION OF SYMBOLS 1 Lead storage battery with a handle 2 Electrode plate group 2a Positive electrode 2b Negative electrode 2c Separator 3 Battery case 3a Wall 3b Side wall 4 Connection part 5 Lid 5a Positive electrode terminal 5b Negative electrode terminal 5c Liquid port stopper 5d Side wall 6 Handle 7 Locking tool 7a Retaining piece 7b Groove 7c Space portion 8 Belt portion 9 Engagement end portion 9a Leg portion 9b Expanding head portion 9c Lower surface 9d End portion 9e Gap 10 Bending portion

Claims (10)

The battery case or the lid is provided with a locking tool on the outer surface of the opposite side wall, and the handle is provided with engaging end portions at both ends of the belt portion, and the locking tool and the engaging end portion are respectively engaged. It is a handle connection structure of a storage battery that connects the handle to the battery case or the lid by wearing it,
A bent portion bent toward the outside of the side wall is provided at any position of the handle,
The engaging end portion is connected to a leg portion having a bulging head projecting outward from the side wall above the bent portion, and to each end of the belt portion and the leg portion adjacent to the belt portion. While providing a terminal portion protruding in the width direction,
The locking tool is provided with a pair of retaining pieces that are protruded in parallel to the outside of the side wall and bent to oppose the ends, and a groove configured between the pair of retaining pieces,
The leg is inserted into one of the pair of retaining pieces and the space surrounded by the side wall, the lower surface of the swelling head is opposed to the upper edge of the retaining piece, and the end portion By bringing the upper edge into contact with the lower edge of the pair of retaining pieces, the handle is fixed to the battery case or the lid,
The battery handle is characterized in that the belt portion can be inserted into and removed from the groove by pressing the expansion head inward in the width direction and pulling the handle downward. Connection structure. The handle connection structure for a storage battery according to claim 1, wherein a pair of the leg portions are provided on both sides of the belt portion at the engagement end portion, and the pair of leg portions are fitted into both the space portions. . The handle connecting structure for a storage battery according to claim 1, wherein an outer surface of the swollen head has an arc shape whose width becomes narrower toward the tip. The handle connection structure for a storage battery according to claim 1, wherein a gap is provided between the leg portion and the belt portion, and the gap is gradually reduced from the terminal portion to the swelling head. The handle connection structure for a storage battery according to claim 1, wherein a gap is not substantially provided between the leg portion and the belt portion. An electrode plate group composed of a positive electrode, a negative electrode, and a separator, a battery case having a plurality of cell chambers for housing the plurality of electrode plate groups, an electrolyte, and a plurality of the electrode plate groups in series and / or in parallel. A lead storage battery with a handle comprising a connecting part to be connected to, a lid provided with a positive electrode terminal and a negative electrode terminal and joined to an upper surface of the opening of the battery case, and a handle for hanging the battery case or the lid, Between the pair of retaining pieces, which protrudes in parallel to the outside of the side walls of the battery case or the lid, and is bent so that the tips are opposed to each other, and the pair of retaining pieces Each provided with a locking tool comprising a groove, and the handle has a shape in which engagement ends are provided at both ends of the belt,
A bent portion that is bent outward is provided at any part of the handle,
The engaging end portion is connected to a leg portion having a bulging head projecting outward from the side wall above the bent portion, and to each end of the belt portion and the leg portion adjacent to the belt portion. While providing a terminal portion protruding in the width direction,
The leg is inserted into one of the pair of retaining pieces and the space surrounded by the side wall, the lower surface of the swelling head is opposed to the upper edge of the retaining piece, and the end portion By fixing the upper edge to the lower edge of the pair of retaining pieces, the handle is fixed to the battery case or the lid, the expansion head is pressed inward in the width direction, and the handle is A lead-acid battery with a handle, wherein the belt portion can be inserted into and removed from the groove by pulling downward. 7. A lead-acid battery with a handle according to claim 6, wherein a pair of said leg portions are provided on both sides of said belt portion at said engagement end portion, and a pair of said leg portions are fitted in both of said space portions. . The lead-acid battery with a handle according to claim 6, wherein the outer side surface of the swollen head has an arc shape whose width decreases toward the tip. The lead-acid battery with a handle according to claim 6, wherein a gap is provided between the leg portion and the belt portion, and the gap is gradually reduced from the terminal portion to the swelling head. The lead-acid battery with a handle according to claim 1, wherein substantially no gap is provided between the leg portion and the belt portion.

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