CN203225315U - Front terminal valve controlled type sealed lead-acid storage battery - Google Patents

Abstract

The utility model discloses a pre-terminal valve-controlled sealed lead-acid storage battery, which comprises a battery tank and a box cover matched with it. The top surface of the box cover has a concave area, and a glue Groove; the front terminal with wiring assembly and pole channel is embedded in the glue groove. The pole installation hole corresponding to the pole passage; the upper part of the pole passes through the pole installation hole and is embedded in the pole passage, and is welded and sealed with the front terminal. Compared with the prior art, the utility model sets the upper part of the pole to the outside of the box cover, and directly welds and seals it with the front terminal with the pole channel, which effectively increases the battery capacity in the battery tank and improves the battery performance; The lead-acid storage battery of the utility model is provided with a protective cover above the wiring assembly to prevent external substances from colliding and damaging the wiring assembly, causing short circuit of the battery.

Description

A pre-terminal valve-regulated sealed lead-acid battery

technical field

The utility model relates to a valve-controlled sealed lead-acid battery, in particular to a valve-controlled sealed lead-acid battery with front terminals.

Background technique

Front terminal batteries, also known as narrow and long batteries, specifically refer to 12V batteries that are suitable for integration in 19-inch or 23-inch cabinets. The poles and front terminals are located on the upper side of the short front side in the same direction as the battery. 19 inches or 23 inches.

The basic principle and structure of the front terminal battery are similar to the 2V battery, the difference is that the front terminal battery connects six 2V battery cells of the same capacity in series and places them in a battery case with six battery slots. This structure makes the front-terminal battery a narrow and long structure, the length-to-width ratio of the battery reaches 3.4-5, and the surface area increases; this makes the front-terminal battery have excellent heat dissipation performance, greatly reducing the possibility of thermal runaway of the battery .

Moreover, the front terminal battery adopts the front terminal design for the external connection of the battery, and the wiring position is at the front half of the battery, which is convenient for wiring; when the front terminal battery is installed vertically, there is no maintenance space between the shelves. It can not only save the area of the machine room, but also make the installation and maintenance of the storage battery very simple.

Front-terminal batteries have more advantages than 2V batteries in terms of energy saving and emission reduction, manufacturing cost, product standardization, and installation controls. Internationally, front-terminal batteries are widely used in the field of communication power supplies.

The basic structure of the existing pre-terminal battery includes a battery tank and a matching box cover. The box cover is composed of a plane and a step surface lower than the plane. The top surface of the step surface is concavely provided with a glue groove. , the bottom of the glue groove has a front terminal installation hole for passing through the front terminal; the upper part of the front terminal is sealed and embedded in the glue groove; Internal pole solder connection.

Since the front terminal is welded directly above the pole, when the total height of the battery is constant, the capacity in the battery slot is small, which limits the energy, charge acceptance and cycle life of the battery.

Utility model content

The utility model provides a pre-terminal valve-controlled sealed lead-acid storage battery. Under the condition that the total height of the storage battery remains unchanged, the internal capacity of the battery tank increases and the performance of the battery is improved.

The technical scheme of the utility model is:

A pre-terminal valve-controlled sealed lead-acid battery, including a battery tank and a box cover matched with it, the top surface of the box cover has a recessed area, and a glue groove is arranged in the recessed area;

The glue groove is embedded with a front terminal with a wiring assembly and a pole channel, the front terminal is arranged horizontally, and the wiring assembly and the pole channel are arranged in a dislocation in the horizontal direction;

The bottom of the glue tank is provided with a pole installation hole corresponding to the pole channel; the upper part of the pole passes through the pole installation hole and is embedded in the pole channel, and is welded and sealed with the front terminal.

The pole of the utility model is cast from aluminum alloy, and the pole extends out of the box cover through the pole installation hole, which saves the occupied volume of the pole in the battery tank in the prior art and effectively increases the battery capacity in the battery tank. capacity. The pole is embedded in the pole channel of the front terminal, and directly welded and sealed with the front terminal, which not only ensures the sealing effect, but also reduces the height of the front terminal, and further increases the capacity of the battery slot.

The misplaced wiring components and pole channels, and the horizontally arranged front terminals also reduce the occupied space of the box cover accordingly, and are used to expand the capacity of the battery slot.

After the pole and the front terminal are welded and sealed, epoxy resin is poured into the glue tank for secondary sealing to form an epoxy resin sealing layer. The epoxy resin sealing layer not only protects the pole and the front terminal, but also further enhances the sealing performance.

Preferably, the wiring assembly is higher than the notch of the glue groove. To prevent wiring components from being buried by poured epoxy.

As an embodiment, the wiring assembly is a copper core, and the top of the front terminal is provided with a copper core installation hole, and the copper core is embedded in the copper core installation hole. Copper core conducts electricity better.

As another implementation manner, the wiring assembly is a lug integrally formed with the front terminal. The lug is integrally processed and formed with the front terminal.

In order to protect the wiring assembly higher than the notch of the glue groove, a protective cover is provided above the wiring assembly, and the protective cover is adapted to the shape of the recessed area. This prevents the impact of foreign matter from damaging the wiring assembly and causing a short circuit in the battery.

One side of the protective cover is hinged with the side wall of the box cover, and the other side of the protective cover is fastened with the top surface of the box cover. The protective cover is hinged with the side wall of the box cover, which is conducive to the maintenance of the wiring components and the connection of the wires; the protective cover is fastened to the top surface of the box cover to avoid water leakage above the box cover and damage to the wiring components and the ring in the glue groove. Oxygen sealant.

Preferably, a gasket is installed in the fastening gap between the protective cover and the top surface of the box cover. To improve the sealing performance of the buckle.

The electrolyte in the pre-terminal valve-controlled sealed lead-acid battery of the utility model is added with gas phase silica colloid, and the addition amount of gas phase silica colloid is preferably 2% to 6% of the weight of the electrolyte solution. The addition of gas-phase silica colloid can make the liquid gel-like, the flow coefficient of the electrolyte is reduced, and stratification does not occur. During use, it is not easy to spill acid liquid or produce acid mist, which prolongs the service life of the equipment.

Compared with the prior art, the beneficial effects of the utility model are:

(1) In this utility model, the upper part of the pole is set outside the box cover, and is directly welded and sealed with the front terminal with the pole channel, which effectively increases the battery capacity in the battery tank and improves the battery performance;

(2) The lead-acid battery of the utility model is equipped with a protective cover above the wiring assembly to prevent external substances from colliding and damaging the wiring assembly, causing short circuit of the battery.

(3) The lead-acid battery of the utility model has a rated capacity of 200Ah for 10 hours and 163Ah for 3 hours, long service life, small self-discharge, good vibration resistance, safe and reliable explosion-proof.

Description of drawings

Fig. 1 is the structure schematic diagram of the front terminal valve-controlled sealed lead-acid storage battery of the present invention;

Fig. 2 is an enlarged view of part A in Fig. 1;

The structural names corresponding to the marks in Figure 1 and Figure 2 are: battery slot 1; copper core 2; protective cover 3, long side 31, short side 32; front terminal 4, pole channel 41, copper core installation hole 42 Pole 5; Epoxy resin sealing layer 6; Separator 7; Pole plate 8; Battery bridge 9; Safety valve 10; .

Detailed ways

The pre-terminal valve-regulated sealed lead-acid battery shown in Figure 1 and Figure 2 includes a battery tank 1 and a box cover 11, the top surface of the box cover 11 is provided with a recessed area 14, and a glue groove 15 is provided in the recessed area 14 , the glue groove 15 is embedded with the front terminal 4 arranged horizontally, the front terminal 4 has a pole channel 41, the bottom of the glue groove 15 has a pole mounting hole 151 corresponding to the pole channel 41, and the pole 5 Pass through the pole installation hole 151 and insert into the pole channel 41 , and weld and seal with the front terminal 4 .

The pole 5 is cast from aluminum alloy, and the pole 5 is extended out of the box cover 11 through the pole installation hole 151, which saves the occupied volume of the pole 5 in the battery tank 1 and effectively increases the internal capacity of the battery tank 1 . The pole 5 is embedded in the pole channel 41 of the front terminal 4, and is directly welded and sealed with the front terminal 4. While ensuring the sealing effect, the height of the front terminal 4 is also reduced, and the capacity of the battery tank is further increased.

After the pole 5 and the front terminal 4 are welded and sealed, epoxy resin is poured into the glue tank 15 for secondary sealing to form an epoxy resin sealing layer 6 . The epoxy resin sealing layer 6 not only protects the pole 5 and the front terminal 4, but also further enhances the sealing performance.

The top of the front terminal 4 is also provided with a copper core installation hole 42, and the copper core installation hole 42 is embedded with a copper core 2, which is used as a wiring assembly to connect with the external wire of the battery. The copper core installation hole 42 and the pole channel 41 are arranged in a dislocation in the horizontal direction to reduce the height of the front terminal 4 and further reduce the occupied space of the box cover 11 to increase the capacity of the battery tank. The copper core 2 is higher than the notch of the glue tank 5 to avoid being buried by the epoxy resin sealing layer 6 .

A protective cover 3 adapted to the shape of the recessed area 14 is provided above the copper core 2. The section of the protective cover 3 is L-shaped, and the long side 31 of the L-shape is fastened with the top surface of the box cover 11, and the short side of the L-shaped 32 is hinged with lid 11 side walls.

Hinge the protective cover 3 and the side wall of the box cover 11, which is beneficial to the maintenance of the copper core 2, and is also convenient for wire connection; fastening the protective cover 3 and the top surface of the box cover 11 can avoid water leakage above the box cover 11 and damage the copper core 2 and the epoxy resin sealing layer 6 in the glue groove 15. A sealing gasket (omitted in the figure) is also installed in the fastening gap between the protective cover 3 and the top surface of the box cover 11 . To improve the sealing performance of the buckle.

Fumed silica colloid is also added to the electrolyte solution in the storage battery, and the addition amount of gas phase silica colloid is 4% of the weight of the electrolyte solution. The addition of gas-phase silica colloid can make the liquid gel-like, the flow coefficient of the electrolyte is reduced, and stratification does not occur.

Claims (7)

1. A pre-terminal valve-regulated sealed lead-acid battery, including a battery tank (1) and a matching box cover (11), the top surface of the box cover (11) has a recessed area (14) , the recessed area (14) is provided with a glue groove (15); it is characterized in that, The glue groove (15) is embedded with a front terminal (4) with a wiring assembly and a pole channel (41), the front terminal (4) is arranged horizontally, and the wiring assembly and the pole channel (41) are in the horizontal direction upper dislocation arrangement; The bottom of the glue tank (15) is provided with a pole mounting hole (151) corresponding to the pole channel (41); the upper part of the pole (5) is inserted into the pole channel (41) through the pole mounting hole (151). ), welded and sealed with the front terminal (4). 2. The front terminal valve-regulated sealed lead-acid battery according to claim 1, characterized in that, the wiring assembly is higher than the notch of the glue groove (15). 3. The valve-regulated sealed lead-acid battery with front terminals as claimed in claim 2, characterized in that, the wiring assembly is a copper core (2), and the top surface of the front terminal (4) is provided with a copper core installation hole (42), and the copper core (2) is embedded in the copper core installation hole (42). 4. The valve-regulated sealed lead-acid battery with front terminals according to claim 2, characterized in that, the wiring assembly is a lug integrally formed with the front terminals (4). 5. The pre-terminal valve-regulated sealed lead-acid battery according to any one of claims 1 to 4, characterized in that a protective cover (3) is provided above the wiring assembly, and the protective cover (3) is in contact with the recessed area ( 14) to suit the shape. 6. The pre-terminal valve-regulated sealed lead-acid battery according to claim 5, characterized in that one side of the protective cover (3) is hinged to the side wall of the box cover (11), and the protective cover (3) ) is fastened with the top surface of the lid (11). 7. The front-end valve-regulated sealed lead-acid battery according to claim 6, characterized in that a gasket is installed in the fastening gap between the protective cover (3) and the top surface of the box cover (11).

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