JP4626184B2 - Lead acid battery - Google Patents

Description

The present invention is lead-acid battery, a battery state determining apparatus Kotoniso.

Batteries state determination apparatus, when the lead-acid battery for a vehicle-mounted, disconnected from the vehicle, or the like is intended to determine the vehicle mounted state. These determine the state by measuring the battery voltage, the charge / discharge current of the battery, the internal impedance, etc., and the environmental temperature during use.

When such a device is determined in a state where it is removed from the vehicle, there is usually a terminal portion connected to the battery, and there is usually a portion for determining the state or displaying the result separately .

In addition, as disclosed in Japanese Patent Application Laid-Open No. 2004-133620, there is an apparatus in which a clamp connected to a battery terminal and an environmental sensor are integrated, as disclosed in Patent Document 1. The whole has a configuration in which a cable is drawn from the clamp portion and a battery state determination unit is separately provided.

When the battery is integrated with the battery, a connection portion is provided on the battery terminal, and a lead wire or the like is drawn from the connection portion to the battery state determination unit. In this case, the battery state determination unit is attached to the upper part, the side part, or the lower part of the battery.

US Patent US64669511B1

BACKGROUND ART similar to the patent, since a battery, batteries status determination device are separate, it is difficult to always onboard, to which the state determination, in the same manner as vehicle maintenance , It takes time and effort to check, so it is difficult to check from time to time,
As a result, there were many cases in which the problem of state determination was missed and battery troubles occurred.

In addition, when used in a vehicle-mounted state, it takes time to connect the cable from the battery state determination device to the battery terminal before or after the vehicle is mounted, or to attach the state determination unit to the vehicle side. Each part of these battery state determination devices has a problem that the maintenance of the battery or the vehicle is impaired.

In addition, when the battery is integrated with the battery, it is necessary to make the battery terminals have a special shape in order to obtain electrical connection with the battery state determination unit. Further, in order to fix the battery state determination unit to the battery, a lot of labor is required, such as an adhesive, a resin, and a fixing jig.

In the present invention, in order to solve such a problem, after the method of the batteries state determination device and battery and integrated, a method of attaching the battery state determining unit, and was detailed study of the shape of the terminal .

In the present invention, it leaves the concave Recessed portion provided on the upper surface of the battery lid, fitted by installing a battery status determining device for securing to the recessed Recessed portion. Shape The shape of the battery state-size device, having a plate-like module to fit into the space of the battery upper part of the electrolytic solution surface and the battery lid has a battery status display on the upper surface, the battery state determining unit therein And As long as there is no particular need for the material of the module body, an insulating material should be selected.

Electrical connection between the battery state determination unit and the battery terminal is performed by a strip-shaped metal lead plate having vibration resistance and high reliability. This metal lead plate has an annular portion on the battery terminal side, and is fitted with the battery terminal at the annular portion. Moreover, the strip | belt-shaped part connected to the said battery state determination part is provided.

This metal lead plate bends a part of the belt-like portion to provide a buffer portion when thermal expansion or other stress is applied. The buffer portion can minimize the influence of stress due to thermal expansion of the battery, the battery state determination device, and the metal lead plate, or the stress due to vibration when using the vehicle. The shape of the buffer portion is preferably U-shaped, V-shaped, corrugated, or a combination of a plurality of these, but is not limited thereto. However, it is preferable that R forming the buffer portion is not so small from the viewpoint of reducing the residual bending stress of the metal plate.

To fit the battery terminals, the inner diameter of the annular part of the metal lead plate is larger than the finest details of the tapered battery terminals, that is, the uppermost part of the terminals so that they can be easily assembled and tapered. It is made smaller than the thickest part of the battery-shaped battery terminal, that is, the lowest part of the terminal, and can be fitted and fixed. Furthermore, a plurality of radial slits are formed at predetermined intervals in the inner periphery of the annular portion of the metal lead plate, and the slit is accompanied by elastic deformation, plastic deformation, or both inside the annular portion. Thus, it is possible to facilitate fitting and fixing with the battery terminal.

As the material of the metal lead plate, it is preferable that the electric resistance is small. However, depending on the conditions, even if the electric resistance is high, there may be no problem in use. Higher strength is preferable, but when it is low, it can be dealt with by increasing the thickness of the metal plate. In consideration of the usage environment of the lead-acid battery, it is preferable that the corrosion resistance is high. However, by performing plating, painting, resin coating, cladding, etc., it is possible to use even a metal having low corrosion resistance or an alloy thereof. In addition, considering the fit with the battery terminals as described above, moderate elastic modulus and elongation are required, but if it does not break brittlely with a little stress, or if it does not break, the thickness of the metal plate It can be used by selecting appropriately. Specific materials suitable for these conditions include copper and bronze, phosphor bronze, spring bronze bronze, brass and other copper alloys, iron and various stainless steel and other iron alloys, nickel and nickel alloys, etc. It is done.

  When the battery state determination device is fitted and the upper surface is flush with the lid upper surface of the lead-acid battery, the battery external dimensions can be made the same as that of the conventional battery without the determination device, resulting in compatibility problems. Absent. Also, in this case, the upper surface of the battery can be easily covered with a synthetic resin sheet / film so as to cover the fitting boundary portion, and the surface of the battery state determination device and the boundary of the fitting portion can be covered. It becomes possible to seal, and weather resistance, waterproofness, and dustproofness can be improved. Furthermore, it is possible to print the design and operation method of the battery state determination device on this sheet / film, which also has a cost advantage.

  ADVANTAGE OF THE INVENTION According to this invention, the battery state determination apparatus integrated with a lead storage battery which can be implement | achieved easily can be provided.

  The present invention is most suitable for use in a lead storage battery for starting an engine of a transport machine such as a gasoline engine vehicle or a diesel engine vehicle. This is because, in these transport machines, the mounting weight of the vehicle and the mounting space of the vehicle are essentially limited, so the lead-acid battery is preferable as it is smaller and lighter in weight. This is because the battery state determination device can be added almost without changing the installation state from the lead storage battery currently in use.

To bring out the advantage to maximize the batteries state determination device preferably small as possible preferred. Battery voltage have been proposed as batteries state determination device, a battery operating temperature or to measure the impedance of the battery, may be those for determining from these data operations, or using the battery status data map . Such an electronic circuit may be configured as a so-called discrete circuit configured by mounting individual electronic components on a printed wiring board, but these electronic circuits are currently provided as general-purpose IC chips. the are simple to configure batteries state determination device using, more reliable to use those ized LSI, including the peripheral circuit, and from the viewpoint of cost. In this case, for example, it is possible to apply this patent to a JISB19 size battery, which is often used in ordinary passenger cars, and to provide a recessed portion on the upper lid of the battery and to fit and attach an LSI battery state determination device. It can be easily done, and this form is most preferable from the viewpoint of reliability.

  Embodiments of the present invention are shown in FIGS.

  FIG. 1 is an example of an upper lid of a lead storage battery provided with a recessed portion for fitting a battery state determination device, FIG. 2 is an example of an outer shape of the battery state determination device, and FIG. 3 is a battery state determination device as a lead storage battery. Part of the fitted state is shown respectively.

  The battery top cover will be described below. The material used was a general, commonly used polypropylene. The upper lid was manufactured by injection molding using a normal mold.

  The planar shape of the recessed portion was rectangular, and the installation position was selected to be offset to the terminal side so as not to interfere with parts on the battery top such as a liquid stopper and an indicator. The depth of the recessed portion was set so that the back side of the bottom of the recessed portion, that is, the surface inside the battery was slightly higher than the upper end of the battery battery case. This is considered so that there is no problem when the upper lid and the battery battery case are heat-welded. A groove was provided between the recessed portion and the battery terminal so that the lead plate of the battery state determination device could be accommodated.

  The battery state determination device will be described below.

The main body was in the form of a flat plate that matched the shape of the recessed portion of the battery upper lid. The material is the same polypropylene as the material of the upper lid, but PET resin with good moldability may also be used. Battery voltage to the body, an electronic circuit board for the state determination of the battery by measuring the battery operating temperature is built. A metal lead plate is attached to the outside from the short side surface of the main body. The material was a phosphor bronze for a spring of 0.2 mm thickness plated with tin. The lead plate has an annular part on the battery terminal side so that it can be fitted to the battery terminal and the annular part. Moreover, the strip | belt-shaped part connected to a battery state determination part was provided. The inner diameter of the annular part is 0.2 mm larger than the outer diameter of the lower end of the battery terminal. Eight slits are formed in the inner periphery in the radial direction to facilitate elastic deformation when fitted, and the annular part and the terminal are securely connected. Made it possible to contact and fix. A buffer portion is formed on the belt-like portion of the lead plate. The buffer part formed one U-shape.

  The battery state determination device was fitted into the concave portion of the upper lid as described above. The external dimensions of the battery state determination device were slightly larger than the size of the recessed portion of the upper lid. As described above, the metal lead plate has a buffer portion, and since it is thin and elastically deforms quite freely, the lead plate annular portion is fitted to the terminal at the same time when the battery state determination device body is fitted. Since they can be combined easily, productivity is also good. An epoxy resin adhesive was used in combination when the battery state determination device main body and the upper lid were fitted. After being fitted, since a force in the pulling direction is hardly applied during use, such an adhesive is not always necessary. However, by doing so, the reliability of fixing is improved. Accordingly, an appropriate adhesive may be selected depending on the material of the battery state determination device main body and the upper lid.

  As a method for improving durability of the battery state determination device / battery upper lid integrated in this way, a PET resin film having a shape covering the boundary portion of the battery state determination device / battery upper cover was attached. By doing so, it is possible to prevent water, oil, and other liquids harmful to the battery state determination device from entering the boundary. Moreover, there is an advantage that the display of the battery state determination apparatus main body, the design, etc. can be omitted by printing the instruction of the battery state determination apparatus, the precautions, and the design on the film.

  Since the battery state determination device can be incorporated while maintaining compatibility with conventional lead storage batteries, it can be used for lead storage batteries for transportation equipment such as automobiles such as gasoline engines and diesel engines. It seems to be effective especially for fresh goods transportation vehicles that are severely damaged when the engine cannot be started. Of course, it can also be used for internal combustion engine systems of other industrial machines.

An example of the upper cover shape of the lead storage battery by this invention is shown. 1 shows an example of a battery state determination device according to the present invention. 1 shows an example of a state in which a battery state determination device according to the present invention is fitted to a lead storage battery.

DESCRIPTION OF SYMBOLS 1 Lead storage battery upper cover 2 Lead storage battery terminal 3 Battery state determination apparatus fitting part 4 Lead plate storage part 5 of battery state determination apparatus Lead plate buffer part storage part 6 of battery state determination apparatus Battery state determination apparatus 7 Battery state determination apparatus Upper surface portion 8 Lead plate strip portion 9 Lead plate annular portion 10 Lead plate buffer portion 11 Lead storage battery upper lid 12 Battery state determination device 13 Cover film

Claims (4)

A lead-acid battery having a batteries state determining apparatus, the battery state determining apparatus, the fitted into the recessed portion provided on the upper surface of the lid of the lead-acid battery has a battery status display on the upper surface, It is a flat module having a battery state determination part inside, and has a metal lead plate provided with an annular part fitted to a terminal of the lead storage battery and a band part connected to the battery state determination part. and, on the strip portion, a lead-acid battery partially characterized Rukoto of having a buffer portion that is bent. The lead acid battery according to claim 1 , wherein an inner diameter of the annular portion is larger than a tip outer diameter of a terminal of the lead acid battery and smaller than a lower end outer diameter . Claim 1 or 2 lead-acid battery according plurality of slits in the inner peripheral in the radial direction of the annular portion, characterized that you have been formed at predetermined intervals. The battery state determination device is fitted so that an upper surface thereof is flush with an upper surface of a lid of the lead storage battery, and the fitting boundary portion is covered with a sheet / film. The lead acid battery in any one of claim | item 1-3 .

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