CN207199748U - A kind of pole group and lead-acid battery - Google Patents

Abstract

The utility model discloses a kind of pole group and lead-acid battery, belong to lead-acid accumulator field, its object is to provide a kind of pole group that just can effectively avoid battery from single lattice reverse electrode phenomena occur when preparing battery using green plate and lead-acid battery, the production efficiency that battery is prepared using green plate is improved.The lead-acid battery includes box body, is provided with dividing plate in box body, the inner chamber of box body is divided into multiple accommodating chambers by dividing plate, and pole group is provided with each accommodating chamber, and multigroup pole group is sequentially connected in series；Pole group includes positive plate, negative plate, the positive bus for multigroup positive plate to be cascaded, the negative bus for multigroup negative plate to be cascaded, the end of positive bus is connected with positive terminal, the end of negative bus is connected with negative terminal, and connection bump is provided with the working face of positive terminal or negative terminal.The utility model is applied to lead-acid accumulator.

Description

A kind of electrode group and lead-acid battery

technical field

The utility model belongs to the field of lead-acid accumulators and relates to poles in accumulators.

Background technique

A lead-acid battery is a battery whose electrodes are mainly made of lead and its oxides, and the electrolyte is a sulfuric acid solution. In the discharge state of the lead-acid battery, the main component of the positive electrode is lead dioxide, and the main component of the negative electrode is lead; the main component of the positive and negative electrodes is lead sulfate in the charging state.

The parts of lead-acid battery mainly include plate, separator, electrolyte, battery tank, pole, safety valve and terminal. The pole is the main part of lead-acid battery, and its main function is: one end is directly connected to the bus bar , and the other end is either connected to an external conductor (ie, a terminal), or connected to one pole of an adjacent single cell in the battery pack, so as to connect multiple battery packs in series or to connect to an external conductor.

In the prior art, the usual cooked pole plates (that is, charged pole plates) used to prepare the pole plates of lead-acid batteries, when the positive and negative pole plates form the pole group through the corresponding bus bars, and the multiple poles When the group is placed in the battery box, since the existing cooked plates are usually charged, it can be directly judged by the charge which pole on the busbar is connected to the positive plate and which pole on the busbar is connected to the positive plate. Negative plate, so when the electrode group is placed in the battery box, there will be no connection between the positive poles or the negative poles of two adjacent pole groups, so that it is not easy to greatly shorten the life of the battery due to the reverse polarity of the battery cells. service life. However, it is necessary to charge the cooked plate to prepare the storage battery by using the cooked plate, thereby increasing the production process of the storage battery, prolonging the production time of the storage battery, and the production efficiency of the storage battery is low, resulting in a high production cost of the storage battery.

Utility model content

The purpose of the utility model is to provide an electrode group and a lead-acid battery which can effectively avoid the phenomenon of single-cell reverse polarity when the storage battery is prepared by using the raw electrode plate, and improve the production efficiency of the storage battery prepared by using the raw electrode plate.

The technical scheme that the utility model adopts is as follows:

A pole comprises a cylinder, and a connection protrusion is arranged on the working surface of the cylinder.

Wherein, the connecting protrusions are spherical or ellipsoidal protrusions.

A pole group, including a positive plate, a negative plate, a positive bus bar for connecting multiple sets of positive plates in series, a negative bus bar for connecting multiple sets of negative plates in series, the end of the positive bus bar The end of the negative busbar is connected to a positive pole, and the end of the negative bus bar is connected to a negative pole, and a connection protrusion is provided on the working surface of the positive pole or the negative pole.

Wherein, the connecting protrusions are spherical or ellipsoidal protrusions.

Wherein, the outer casing of the positive electrode plate or the negative electrode plate is provided with a spacer.

A lead-acid battery, comprising a box, the box is provided with partitions, the partition divides the inner cavity of the box into a plurality of accommodation chambers, and each accommodation chamber is provided with a pole group, a plurality of groups The pole groups are connected in series sequentially; the pole groups are the above-mentioned pole groups.

Wherein, a receiving hole is provided at a position corresponding to the connecting protrusion on the separator, and when the pole group is placed in the receiving chamber, the connecting protrusion protrudes into the receiving hole and is connected in series with the corresponding pole group.

In summary, due to the adoption of the above technical solution, the beneficial effects of the utility model are:

In the utility model, by setting a connection protrusion on the working surface of the positive pole or the negative pole, the connection protrusion is either arranged on the positive pole or on the negative pole, and one of them is set, so that when using the raw plate In the process of producing batteries, the positive and negative poles can be judged by judging whether there are connection bumps on the poles, so that when using raw plates (that is, plates that are not charged with charges) to produce batteries, it can be effectively Avoid the phenomenon of reverse polarity of the battery cell, so as to ensure the service life of the battery; in addition, since the battery plate is directly used in the production of the raw plate, there is no need to charge the plate separately, thereby reducing the need for charging the plate steps, thereby improving the production efficiency of the storage battery and reducing the production cost of the storage battery.

Description of drawings

Fig. 1 is the structural representation of the utility model;

Fig. 2 is the structural representation of battery case in the utility model;

Fig. 3 is the structural representation of pole group in the utility model;

Fig. 4 is the connection schematic diagram of polar plate and spacer in the utility model;

Fig. 5 is a schematic structural view of a pole with a connecting protrusion in the utility model;

Figure 6 is a top view of Figure 5;

Marks in the figure: 1-box body, 2-separator, 3-accommodating chamber, 4-accommodating hole, 5-pole group, 51-positive plate, 52-negative plate, 53-positive bus bar, 54-positive column , 55-negative pole, 56-negative bus bar, 57-spacer, 58-connection protrusion.

Detailed ways

In order to make the purpose, technical solution and advantages of the utility model clearer, the utility model will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model, and are not intended to limit the utility model.

A lead-acid battery, the lead-acid battery includes a box body 1, a partition 2 is arranged in the box body 1, and the inner cavity of the box body 1 is divided into a plurality of accommodation chambers 3 by the partition board 2, each accommodation chamber 3 are provided with a pole group 5. The number of pole groups 5 set in the same box body 1 is set according to the voltage and current requirements, and multiple sets of pole groups 5 in the box body 1 are connected in series in sequence.

The pole groups 5 in the box body 1 all include positive plates 51 and negative plates 52 , and the numbers of the positive plates 51 and the negative plates 52 are set according to voltage and current requirements. Multiple sets of positive plates 51 and multiple sets of negative plates 52 are sequentially arranged to cross along the arrangement direction of the plates, and all positive plates 51 in the same set of pole groups 5 are connected in series to the same positive bus bar 53, and the same set of pole groups All the negative plates 52 in 5 are connected in series to the same negative bus bar 56 , and the positive bus bar 53 and the negative bus bar 56 are respectively located on the left and right sides of the pole group 5 . A positive post 54 is installed on the positive bus bar 53 of the same pole group 5, and a negative post 55 is installed on the negative bus bar 56 of the same pole group 5, and is arranged on the working surface of the positive post 54 or the negative post 55. There are connecting protrusions 58 . The connecting protrusion 58 is either arranged on the working surface of the positive pole 54, or the connecting protrusion 58 is arranged on the working surface of the negative pole 55, and one of them is selected.

When installing, put multiple groups of pole groups 5 into the corresponding accommodation cavity 3 in the box body 1. When placing the pole groups 5, each pole group 5 is provided with a connecting pole 54 or a negative pole 55. Protrusion 58, so when the pole group 5 is connected in series, only the pole column provided with the connection protrusion 58 on the last group of pole group 5 and the pole column not provided with the connection protrusion 58 on the next group of pole group 5 The poles can only be connected, so as to realize the series connection of multiple sets of pole groups 5, and can effectively prevent the phenomenon of reverse polarity of a battery cell. In the prior art, when welding the poles, since there is no protrusion structure on the poles to be welded together, it is necessary to provide a protrusion structure on the welding jig, and the protrusion structure on the welding jig will The corresponding position on the pole is extruded in the direction of the other pole, forming depressions on the non-working surface of the pole while achieving welding, and these depressions will limit the limit current flowing through the pole, thus affecting the normal operation of the battery use. In the present application, since the connecting protrusion 58 is provided between the positive pole 54 and the negative pole 55, when the poles of the adjacent two pole groups 5 are connected in series, there is no need to set a protrusion on the welding jig, and the welding of the poles after welding is completed. The non-working surface is also flat, thereby ensuring that the limit current of the pole is not affected under the condition of facilitating battery production, which meets the normal use of the battery.

Preferably, a receiving hole 4 is also provided on the separator 2, and the receiving hole 4 is set corresponding to the position of the connection protrusion 58 on the pole after the pole group 5 is installed, and the size, shape and accommodation of the connection protrusion 58 The size and shape of the holes 4 are matched. When multiple groups of pole groups 5 are connected in series, the connecting protrusions 58 on the corresponding poles of the pole groups 5 will be located in the receiving holes 4, so as to facilitate the subsequent welding of the poles of adjacent two pole groups 5 to realize pole Concatenation of group 5.

Preferably, the connection protrusion 58 is a spherical or ellipsoidal protrusion.

Preferably, the positive electrode plate 51 or the negative electrode plate 52 is covered with a spacer 57 , and one of the positive electrode plate 51 or the negative electrode plate 52 is provided.

Example 1

A pole, comprising a cylinder, and a connecting protrusion 58 is arranged on the working surface of the cylinder.

Example 2

On the basis of the first embodiment, the connecting protrusion 58 is a spherical or ellipsoidal protrusion.

Example 3

A pole group, including a positive plate 51, a negative plate 52, a positive bus bar 53 for connecting multiple sets of positive plates 51 in series, and a negative bus bar 56 for connecting multiple sets of negative plates 52 in series. The positive pole 54 is connected to the end of the positive busbar 53 , the negative pole 55 is connected to the end of the negative busbar 56 , and a connection protrusion 58 is provided on the working surface of the positive pole 54 or the negative pole 55 .

Example 4

On the basis of the third embodiment, the connecting protrusion 58 is a spherical or ellipsoidal protrusion.

Example 5

On the basis of the third or fourth embodiment, the positive plate 51 or the negative plate 52 is covered with a spacer 57 .

Example 6

A lead-acid battery, comprising a box body 1, the box body 1 is provided with a partition 2, and the partition plate 2 divides the inner cavity of the box body 1 into a plurality of accommodation chambers 3, and each accommodation chamber 3 is provided with The pole group 5, multiple sets of pole groups 5 are serially connected in series; the pole group 5 adopts the pole group 5 of the third embodiment, the fourth embodiment or the fifth embodiment.

Example 7

On the basis of Embodiment 6, a receiving hole 4 is provided on the separator 2 at a position corresponding to the connecting protrusion 58. When the pole group 5 is placed in the receiving chamber 3, the connecting protrusion 58 extends into the receiving hole 4 and It is connected in series with the corresponding pole group 5 .

The above descriptions are only preferred embodiments of the present utility model, and are not intended to limit the present utility model. Any modifications, equivalent replacements and improvements made within the spirit and principles of the present utility model shall be included in this utility model. within the scope of protection of utility models.

Claims (5)

1. A pole group, comprising a positive pole plate (51), a negative pole plate (52), a positive bus bar (53) for connecting multiple groups of positive pole plates (51) in series, for connecting multiple groups of negative pole plates ( 52) Negative busbars (56) connected in series, the positive pole (54) is connected to the end of the positive busbar (53), and the negative pole (55) is connected to the end of the negative busbar (56) , characterized in that: the working surface of the positive pole (54) or the negative pole (55) is provided with a connection protrusion (58). 2. The pole group according to claim 1, characterized in that: the connecting protrusion (58) is a spherical or ellipsoidal protrusion. 3. An electrode group according to claim 1 or 2, characterized in that: a spacer (57) is provided outside the positive plate (51) or the negative plate (52). 4. A lead-acid battery, comprising a box body (1), the box body (1) is provided with a dividing plate (2), and the dividing plate (2) divides the inner chamber of the box body (1) into many Each accommodation chamber (3) is provided with a pole group (5), and multiple sets of pole groups (5) are connected in series; it is characterized in that: the pole group (5) uses the right The pole group (5) described in any one of Claims 1-3. 5. A kind of lead-acid battery as claimed in claim 4, it is characterized in that: the position corresponding to connecting protrusion (58) is provided with accommodating hole (4) on the said separator (2), pole group (5 ) is placed in the accommodation cavity (3), the connection protrusion (58) protrudes into the accommodation hole (4) and is connected in series with the corresponding pole group (5).