CN213340507U - Storage battery with cooling and heat-preserving circulating system and storage battery pack - Google Patents

Abstract

The utility model discloses a storage battery with a cooling and heat-preserving circulation system, which comprises a battery jar, wherein the side wall and the bottom of the battery jar are both provided with an interlayer structure, a communicated cavity is arranged in the interlayer structure, the top surface of the side wall of the battery jar is provided with a filling hole which is communicated with the cavity and used for adding cooling/heat-preserving substances, and a sealing element is arranged at the filling hole in a matching way; the storage battery pack comprises the storage battery, and a plurality of groups of clamping grooves and a plurality of groups of clamping seats are arranged on the outer side wall of the battery jar. The utility model discloses an add cooling/heat preservation material in the cavity of battery lateral wall and bottom, help the battery dispels the heat under high temperature environment, prevents that the acidizing fluid from freezing under the low temperature environment, avoids the battery performance to descend, increase of service life, simultaneously, draw-in groove and cassette design can regard as the strengthening rib when being convenient for between the battery in groups to connect, prevent that the casing collision from warping or impaired, improve the radiating effect simultaneously.

Description

Storage battery with cooling and heat-preserving circulating system and storage battery pack

Technical Field

The utility model discloses battery technical field, concretely relates to area cooling heat preservation circulation system's battery and storage battery.

Background

Lead-acid batteries have been widely used in various fields, such as Uninterruptible Power Supplies (UPS), power supplies, and communication power supplies, and many of recent electric vehicles, such as electric bicycles, electric motorcycles, electric wheelchair vehicles, and electric cars, also use lead-acid batteries. The UPS storage battery is used as the backup energy of the UPS power supply system and is also an important component of the UPS power supply system, particularly, the backup storage battery of a large and medium UPS power supply has large quantity, large capacity and heavy mass, and if the layout is not reasonable during installation, the problems of building damage, casualties, difficulty in later maintenance, battery life damage and the like can be caused. In addition, for electric vehicles, frequent charging and discharging of the battery is required, and higher requirements are put on the applicable environmental performance of the battery. Currently, a plurality of batteries are generally used after being connected in series/parallel in a group. The battery pack of the electric vehicle is formed by connecting a plurality of batteries in series/parallel, a typical battery pack has about 3-6 batteries, and when the electric vehicle runs on a bumpy road, the battery pack used by the electric vehicle is easy to damage due to vibration, so that the use of the electric vehicle is influenced.

The battery generally generates heat during charging and discharging. Oxygen generated from the positive electrode during charging reaches the negative electrode, and a large amount of heat is generated when the oxygen reacts with lead of the negative electrode, and the internal temperature of the battery rises if the oxygen is not discharged in time. If the storage battery works in a high-temperature environment, heat accumulated in the storage battery can be difficult to dissipate, the storage battery can be overheated, the water loss is aggravated, the internal resistance is increased, internal heating is generated, vicious circle is generated, thermal runaway is gradually developed, and finally the storage battery is failed and the service life is ended. Thermal runaway can also lead to severe deformation of the battery case.

In the low temperature state, the charge acceptance, the charge efficiency and the capacity of the battery are all reduced, and if the battery is discharged by large current for a long time, the actual discharge capacity of the battery becomes smaller. In addition, overdischarge occurs at low temperature in winter, and the acid solution of the battery freezes along with the decrease of the density of the electrolyte, so that the battery is irreparably damaged.

At present, when the battery is used in a combined mode, the battery is fixed by an outer frame, otherwise, the batteries are easy to loosen and poor in contact, but the heat dissipation effect is poor due to the frame fixing mode, and meanwhile, the problem of battery performance reduction in a low-temperature environment cannot be solved.

SUMMERY OF THE UTILITY MODEL

The utility model provides a not enough to prior art, the utility model provides a take cooling heat preservation circulation system's battery and storage battery can effectively solve the performance degradation problem of battery under high temperature, low temperature environment.

The storage battery with the cooling and heat-preserving circulating system comprises a battery tank, wherein sandwich structures are arranged on the side wall and the bottom of the battery tank, cavities communicated with each other are arranged in the sandwich structures, filling holes communicated with the cavities and used for adding cooling/heat-preserving substances are formed in the top surface of the side wall of the battery tank, and sealing elements are arranged at the positions of the filling holes in a matched mode.

According to the scheme, the cooling/heat preservation substance is added into the cavities of the side wall and the bottom of the storage battery, so that the storage battery is helped to dissipate heat in a high-temperature environment, acid liquor is prevented from being frozen in a low-temperature environment, the performance of the storage battery is prevented from being reduced, and the service life is prolonged.

Preferably, the cavity at the bottom of the battery jar is internally provided with a columnar bulge and drainage ribs which are radially distributed outwards by taking the columnar bulge as a center, so that the accumulation of circulating substances in the cavity at the bottom can be prevented, the liquid diversion and the dispersion of internal heat are facilitated, and the fastening effect is achieved.

Preferably, the cavity at the bottom of the battery groove is internally provided with short supporting ribs which are uniformly distributed along the periphery of the cavity at the bottom of the battery groove.

Preferably, the support short ribs positioned at the four corners of the cavity at the bottom of the groove are L-shaped.

Preferably, a filling hole column is arranged at the filling hole, the filling hole is arranged at the center of the filling hole column, an external thread is arranged on the filling hole column, and the sealing element is a sealing nut in threaded fit with the filling hole column.

Preferably, the bottom of the storage battery is provided with the anti-skidding convex feet which are uniformly distributed, so that the bottom of the battery jar is concave-convex, a gap is formed between the battery jar and a bearing surface of the battery, the whole external surface area is enlarged, and the heat dissipation performance and the mechanical strength of the bottom of the battery are improved.

A storage battery pack comprises the storage battery, wherein a plurality of groups of clamping grooves and a plurality of groups of clamping seats are arranged on the outer side wall of a battery jar, and the clamping grooves/clamping seats on the outer side wall of the storage battery are matched with the clamping seats/clamping grooves on the outer side wall of an adjacent storage battery.

The clamping grooves and the clamping seats are designed to be convenient for group connection among the batteries and can be used as reinforcing ribs at the same time, so that the shell is prevented from being deformed or damaged by collision; meanwhile, the outer surface of the battery jar is concave-convex due to the clamping groove and the clamping seat structure, the whole outer surface area is enlarged, and the heat dissipation performance and the mechanical strength are improved.

Preferably, every group draw-in groove and every group cassette all include two that the interval set up from top to bottom. The design of upper and lower disconnection can accelerate the air flow, does benefit to the battery heat dissipation.

The utility model has the advantages that:

(1) through adding cooling/heat preservation material in the cavity of the lateral wall of battery and bottom, help the battery dispel the heat under high temperature environment, prevent the acidizing fluid from freezing under the low temperature environment, avoid the battery performance to descend increase of service life.

(2) The design of draw-in groove and cassette can regard as the strengthening rib when being convenient for between the battery in groups to be connected, prevents that the casing collision from warping or impaired, improves the radiating effect simultaneously.

Drawings

Fig. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic side view in cross section of the present invention;

FIG. 3 is a schematic top view of the present invention;

fig. 4 is a schematic view of the combined structure of the present invention.

Detailed Description

As shown in fig. 1-4, the storage battery with a cooling and heat-preserving circulation system comprises a battery jar 1, wherein sandwich structures are arranged on the side wall and the bottom of the battery jar 1, and communicated cavities 2 are arranged in the sandwich structures, wherein the width of a side wall cavity 21 is 6mm, and the depth of a bottom cavity 22 is 8 mm; the top surface of the side wall of the battery jar 1 is provided with a filling hole column hole which is communicated with the cavity 2 and used for adding cooling/heat-insulating substances, and a sealing element is arranged at the filling hole.

A columnar bulge 4 and drainage ribs 5 which are radially distributed outwards by taking the columnar bulge 4 as a center are arranged in the groove bottom cavity 22; wherein the radius of the columnar bulge 4 is 10-15mm, and the height is 8 mm; the length of drainage rib 5 is 30mm, and the width is 2mm, and highly is 8mm, according to specific need, the quantity of drainage rib 5 can set up to 6-10.

The groove bottom cavity 22 is also internally provided with short supporting ribs 6 which are uniformly distributed along the periphery of the groove bottom cavity 22, wherein the short supporting ribs 6 positioned at four corners of the groove bottom cavity 22 are L-shaped so as to enhance the stability of end corners; specifically, 3-6 supporting short ribs 6 are arranged along the length direction of the groove bottom cavity 22, and 2-4 supporting short ribs 6 are arranged along the width direction.

A filling hole column 3 is arranged at the filling hole, a filling hole is arranged at the center of the filling hole column 3, an external thread is arranged on the filling hole column 3, and the sealing element is a sealing nut in threaded fit with the filling hole column 3; wherein, the external diameter of filling hole post 3 is 6mm, and the internal diameter is 4mm, and highly is 6mm, during specific setting, also can design 2 filling hole posts 3.

The bottom of the storage battery is also provided with anti-skid convex feet 9 which are uniformly distributed and arranged in a 2 x 5-3 x 8 mode, and specifically, the anti-skid convex feet 9 are of a cuboid structure, the length is 20mm, the width is 5mm, and the thickness is 5 mm.

A storage battery pack comprises the storage battery, wherein a plurality of groups of clamping grooves 7 and a plurality of groups of clamping seats 8 are arranged on the outer side wall of a battery jar 1, and when the storage battery pack is combined, the clamping grooves 7/the clamping seats 8 on the outer side wall of the storage battery are matched with the clamping seats 8/the clamping grooves 7 on the outer side wall of the adjacent storage battery; specifically, each outer side wall is provided with a group of clamping grooves 7 and a group of clamping seats 8, wherein each group of clamping grooves 7 and each group of clamping seats 8 comprise two clamping seats which are arranged at intervals up and down; the clamping edges on the two sides of the clamping groove 7 are provided with chamfers at the positions of the groove inlets, and chamfers are also arranged on the edge parts of the clamping seat 8, which are in contact with the clamping edges of the clamping groove 7, so that the clamping groove 7 and the clamping seat 8 can be conveniently embedded in a beveling mode.

The design of the cooling/heat-preservation circulating system of the utility model meets the use requirements of the battery under different environmental temperatures, the charge and discharge performance at low temperature is improved, the probability of thermal runaway at high temperature is greatly reduced, and the service life of the battery is prolonged; simultaneously draw-in groove and cassette carry out the fixed connection between the battery pack through distributing in groups, have realized the independent assortment between the battery pack in limited space for the battery pack is connected stably, and the resistance to vibration is strong.

Claims (8)

1. The utility model provides a take battery of cooling heat preservation circulation system, the battery includes the battery jar, its characterized in that: the side wall and the bottom of the battery jar are both provided with sandwich structures, cavities communicated with each other are arranged in the sandwich structures, the top surface of the side wall of the battery jar is provided with filling holes communicated with the cavities and used for adding cooling/heat-insulating substances, and sealing elements are arranged at the filling holes in a matched mode.

2. The secondary battery with a cooling and heat-insulating circulation system according to claim 1, wherein: a columnar bulge and drainage ribs which are radially distributed outwards by taking the columnar bulge as a center are arranged in a cavity at the bottom of the battery tank.

3. The secondary battery with a cooling and warming circulation system according to claim 1 or 2, wherein: and support short ribs which are uniformly distributed along the periphery of the cavity at the bottom of the battery groove are arranged in the cavity at the bottom of the battery groove.

4. The secondary battery with a cooling and heat-insulating circulation system according to claim 3, wherein: the supporting short ribs positioned at the four corners of the cavity at the bottom of the groove are L-shaped.

5. The secondary battery with a cooling and heat-insulating circulation system according to claim 1, wherein: the filling hole is formed in the position of the filling hole, the filling hole is formed in the center of the filling hole, external threads are formed in the filling hole, and the sealing element is a sealing nut in threaded fit with the filling hole.

6. The secondary battery with a cooling and heat-insulating circulation system according to claim 1, wherein: the bottom of the storage battery is provided with anti-skid convex feet which are uniformly distributed.

7. A battery pack, characterized by: the storage battery with the cooling and heat preservation circulation system comprises any one of claims 1 to 6, wherein a plurality of groups of clamping grooves and a plurality of groups of clamping seats are arranged on the outer side wall of the battery tank, and the clamping grooves/clamping seats on the outer side wall of the storage battery are matched with the clamping seats/clamping grooves on the outer side wall of the adjacent storage battery.

8. The battery pack according to claim 7, wherein: every draw-in groove of group and every cassette all include two that the interval set up from top to bottom.

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