CN213692200U

CN213692200U - Lead-acid storage battery plastic shell

Info

Publication number: CN213692200U
Application number: CN202021967972.5U
Authority: CN
Inventors: 杨滔; 熊正林; 胡曙; 李焙
Original assignee: Hubei Nandu New Energy Research Co Ltd; Zhejiang Narada Power Source Co Ltd
Current assignee: Hubei Nandu New Energy Research Co Ltd; Zhejiang Narada Power Source Co Ltd
Priority date: 2020-09-10
Filing date: 2020-09-10
Publication date: 2021-07-13
Anticipated expiration: 2030-09-10

Abstract

The utility model discloses a lead-acid storage battery plastic shell, which relates to the technical field of batteries and comprises a battery jar; one end of the battery jar is sequentially provided with a first battery cover and a first cover plate; the other end of the battery jar is sequentially provided with a second battery cover and a second cover plate; and the first battery cover and the second battery cover are respectively provided with a bus bar groove matched with the bus bars on the pole group. The technical problem of low battery utilization rate of the plastic shell structure is solved, and the battery utilization rate can be improved.

Description

Lead-acid storage battery plastic shell

Technical Field

The utility model relates to the technical field of batteries, concretely relates to lead acid battery moulds shell.

Background

The plastic shell of the storage battery generally comprises a battery jar, a battery cover and a battery piece, the battery jar and the battery cover are sealed by epoxy resin, most of the battery cover plate is welded by ultrasonic wave, the battery jar is a main body part, a battery pole group and electrolyte are arranged in the battery jar, a bus bar is arranged on the upper part of the pole group, when the battery jar is sealed, the bus bar is inserted into a rubber groove of the battery cover for sealing, the sealing mode is simple and easy to operate, and the sealing performance is excellent; the specific structure is shown in attached figures 1 and 2, the lead storage battery is composed of important components such as a plastic shell, a polar plate, a bus bar and the like, a lug and the bus bar are formed in a cast-weld mode, the bus bar is arranged on the upper part of a polar group, namely the bus bar is designed to be arranged in double rows, the existing storage battery adopts the structure, and when the battery is used, current passes through the polar plate and is connected with a load through the bus bar; the plastic shell structure has low battery utilization rate, high charging cost, short battery cycle life and the like.

SUMMERY OF THE UTILITY MODEL

1. Technical problem to be solved by the utility model

To the low technical problem of battery utilization who moulds the shell structure, the utility model provides a lead acid battery moulds the shell, and it can improve battery utilization.

2. Technical scheme

In order to solve the above problem, the utility model provides a technical scheme does:

a lead-acid storage battery plastic shell comprises a battery jar; one end of the battery jar is sequentially provided with a first battery cover and a first cover plate; the other end of the battery jar is sequentially provided with a second battery cover and a second cover plate; and the first battery cover and the second battery cover are respectively provided with a bus bar groove matched with the bus bars on the pole group.

Optionally, the current collecting groove includes a first current collecting groove located on the first battery cover, and a second current collecting groove located on the second battery cover.

Optionally, a plastic casing partition plate for separating adjacent single-group pole groups is arranged in the battery tank 803.

Optionally, a first sealing element is arranged at one end of the battery jar, a first sealing groove is formed in the first battery cover, and the first sealing element is matched with the first sealing groove, so that one end of the battery jar is sealed with the first battery cover; the other end of the battery jar is equipped with the second sealing member, the second battery lid is equipped with the second seal groove, the second sealing member and the second seal groove phase-match to make the other end of battery jar with the second battery lid is sealed.

Optionally, the first battery cover and the second battery cover are both provided with a first protrusion and a second protrusion.

Optionally, the first battery cover and the second battery cover are both provided with plastic casing partition grooves.

Optionally, the first battery cover is provided with a positive pole column groove and a negative pole column groove which are correspondingly and respectively matched with the positive pole column and the negative pole column of the pole group.

Optionally, the first battery cover is provided with an exhaust hole.

Optionally, a plurality of clamping pieces are arranged on the second cover plate, a plurality of clamping positions are arranged on the second battery cover, and the clamping pieces are matched with the clamping positions.

Optionally, a notch is arranged at the sealing connection position of the first cover plate and the second battery cover.

3. Advantageous effects

Adopt the technical scheme provided by the utility model, compare with prior art, have following beneficial effect:

the embodiment of the utility model provides a lead acid battery moulds shell, all be equipped with on first battery cover and the second battery cover with utmost point crowd's the busbar assorted collecting tank for the adaptation is located first busbar, second busbar and the third busbar at utmost point crowd both ends respectively. The assembly requirement of the improved pole group structure is met, the utilization rate of the lead paste is improved, the consistency of the battery is improved, and the cost is reduced.

Drawings

FIG. 1 is a schematic structural diagram of a conventional lead-acid battery plastic case;

FIG. 2 is a front view of a conventional pole group;

FIG. 3 is a schematic perspective view of the relative position structure of positive and negative electrode plates and separators of an improved lead-acid battery electrode group;

FIG. 4 is a front view of a modified lead acid battery plate pack;

FIG. 5 is an enlarged view of the point A in FIG. 4;

fig. 6 is an explosion diagram of a plastic shell structure of a lead-acid storage battery provided in an embodiment of the present invention;

fig. 7 is an exploded view of a lead-acid battery plastic case equipped with a pole group according to an embodiment of the present invention;

fig. 8 is a second explosion diagram of a lead-acid battery plastic case equipped with a pole group according to an embodiment of the present invention.

Detailed Description

For a further understanding of the present invention, reference will now be made in detail to the embodiments illustrated in the drawings.

The present application will be described in further detail with reference to the following drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the relevant invention and not restrictive of the invention. It should be noted that, for convenience of description, only the portions related to the present invention are shown in the drawings. The terms first, second, and the like in the present invention are provided for convenience of describing the technical solution of the present invention, and have no specific limiting effect, but are all generic terms, and do not limit the technical solution of the present invention. It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict. The present application will be described in detail below with reference to the embodiments with reference to the attached drawings.

With reference to fig. 6-8, a lead-acid battery plastic case includes a battery jar 803 for assembling a pole group; one end of the battery jar 803 is provided with a first battery cover 802 and a first cover plate 801 in sequence; the other end of the battery jar 803 is provided with a second battery cover 804 and a second cover plate 805 in sequence; and the first battery cover 802 and the second battery cover 804 are respectively provided with a bus bar groove matched with the bus bar 4 on the pole group.

The conventional pole group structure is shown in fig. 2, and the corresponding plastic housing structure is shown in fig. 1, and includes a battery container body 703, a battery cover 702, and a cover plate 701, which are sequentially combined. The buses 4 are located at one end of the plate group, which is long in time, low in lead paste utilization rate, low in charging efficiency and high in cost.

The improved lead-acid storage battery pole group comprises more than one positive pole piece 2, more than one negative pole piece 1, more than one bus bar 4 and more than one separator 3, as well as a positive pole lug 202 arranged on the positive pole piece 2 and a negative pole lug 102 arranged on the negative pole piece 1, as shown in fig. 3-5; a partition plate 3 is arranged between the adjacent positive plate 2 and the adjacent negative plate 1, and the positive tab 202 and the negative tab 102 are respectively arranged at two ends of the partition plate 3; the bus bar 4 comprises a first bus bar 401 and a second bus bar 402, the first bus bar 401 is used for connecting a plurality of adjacent positive lugs 202 at the same end of the separator 3, and the second bus bar 402 is used for connecting a plurality of adjacent negative lugs 102 at the same end of the separator 3; to form a single group of poles 11.

As shown in fig. 1, when the positive electrode tab 2 and the negative electrode tab 1 are arranged, the separator 3 is used to separate the positive electrode tab 2 and the negative electrode tab 1 to prevent short circuit; when the arrangement is carried out, the positive tab 202 on the positive plate 2 is intensively arranged at one end of the separator 3, and the negative tab 102 of the negative plate 1 is arranged at the other end (in the direction far away from one end of the separator 3) of the separator 3; the negative electrode tabs 102 on a plurality of adjacent negative electrode sheets 1 at one end of the plurality of separators 3 are communicated through a first bus bar 401 and used for passing current; and the positive lugs 202 are positioned at the other ends of the plurality of separators 3, isolated by the plurality of separators 3 and arranged on the plurality of positive plates 2 between the adjacent negative plates 1 in a crossed manner, and are communicated through a first bus bar 401 for passing current.

Two adjacent first busbars 401 at the same end of the partition 3 are connected to form the second busbar 402; the first bus bar 401 connected with the positive tab 202 and the first bus bar 401 connected with the negative tab 102 on two sides of the pole group are respectively provided with a positive post 201 and a negative post 101.

After passing through the whole positive plate 2 or negative plate 1 at one end of the separator 3, the current is made to flow to the negative plate 1 or positive plate 2 at the other end of the separator 3 through the first bus bar 401 and the second bus bar 402 at both ends of the positive plate 2 or negative plate 1; so that the current flows through each part of the pole group to achieve relative uniformity, and the lead paste utilization rate at the bottom of the pole group is greatly improved; the upper and lower uniformity of the pole group is improved, and the service life of the lead-acid storage battery is prolonged.

The existing pole group connection mode is changed, the lead paste utilization rate of the bottom of the pole group is improved, the required lead paste amount is reduced, and the cost is lower; the battery charging is more uniform, and the electric energy utilization rate is high; the utilization rate of the battery pole group lead paste is improved, and the charging energy consumption of the battery is reduced; the required lead paste amount is reduced, so that the cost is reduced; the sealant beating times are reduced, the production efficiency is improved, and the battery sealing performance is better; the cycle life of the battery is prolonged, and the consistency of the battery is improved.

In order to match the above-mentioned pole group structure, in the lead-acid battery plastic case provided in this embodiment, the first battery cover 802 and the second battery cover 804 are respectively provided with a bus slot matched with the bus bar 4 on the pole group, so as to be adapted to the first bus bar 401, the second bus bar 402 and the third bus bar 403 respectively located at two ends of the pole group. The assembly requirement of the improved pole group structure is met, the utilization rate of the lead paste is improved, the consistency of the battery is improved, and the cost is reduced.

In an alternative embodiment, the current-collecting grooves include a first current-collecting groove 8024 on the first battery cover 802, and a second current-collecting groove 8042 on the second battery cover 804. The first bus groove 8024 and the second bus groove 8042 are respectively matched with bus bars at two ends of the pole group and used for assembling and sealing the pole group.

In an alternative embodiment, a plastic-casing partition 8033 for separating the adjacent single-group pole groups 11 is disposed in the battery jar 803. The electrode groups are arranged in the battery jar 803, and a plastic shell clapboard 8033 is arranged between the adjacent single-group electrode groups 11 for fixing and supporting the electrode group structure and simultaneously ensuring the integral firmness of the battery plastic shell.

In an optional embodiment, a first sealing member 8031 is disposed at one end of the battery jar 803, the first battery cover 802 is disposed with a first sealing groove 8025, and the first sealing member 8031 is matched with the first sealing groove 8025, so that one end of the battery jar 803 is sealed with the first battery cover 802; the other end of the battery jar 803 is provided with a second sealing element 8032, the second battery cover 804 is provided with a second sealing groove 8043, and the second sealing element 8032 is matched with the second sealing groove 8043, so that the other end of the battery jar 803 is sealed with the second battery cover 804. By the matching relationship, the sealing of the battery jar 803 and the first battery cover 802 and the second battery cover 804 is realized structurally; in order to further enhance the sealing effect, glue can be applied to the sealing position.

In an optional embodiment, a first protrusion 8041 and a second protrusion 8045 are disposed on each of the first battery cover 802 and the second battery cover 804. The bus bars 4 at the two ends of the single group of electrode group 11 divide the two end faces of the single group of electrode group 11 into two parts, and after the electrode group is placed in the battery jar 803, the first protrusion 8041 and the second protrusion 8045 on the first battery cover 802 and the second battery cover 804 are respectively matched with the two parts divided on the two end faces of the single group of electrode group 11 for sealing. The first protrusion 8041 and the second protrusion 8045 on the first battery cover 802, similar to the second battery cover 804, are not shown in fig. 6-8.

In an alternative embodiment, a plastic partition groove 8046 is formed on each of the first battery cover 802 and the second battery cover 804. The molded case partition plate groove 8046 is matched with the molded case partition plate 8033 to play a role in sealing; molded housing barrier slots 8046 on the first battery cover 802 and the second battery cover 804, similar to the second battery cover 804, are not shown in fig. 6-8.

In an optional embodiment, the first battery cover 802 is provided with a positive post groove 8022 and a negative post groove 8021 which are respectively matched with the positive post 201 and the negative post 101 of the pole group.

After the pole group is placed in the battery well 803, the first battery cover 802 is assembled to one end of the battery well 803, and the positive pole 201 can be inserted into the positive pole well 8022 and the negative pole 101 can be inserted into the negative pole well 8021.

In an optional embodiment, the first battery cover 802 is provided with vent holes 8023 corresponding to the positions and the number of the single group of poles 11. The exhaust holes 8023 are used to exhaust hydrogen and oxygen released from the electrolyte at the respective single group clusters 11.

In an optional embodiment, a plurality of engaging members 8051 are disposed on the second cover plate 805, a plurality of engaging positions 8044 are disposed on the second battery cover 804, and the engaging members 8051 are matched with the engaging positions 8044. The second cover plate 805 is connected to the second battery cover 804, and the sealing connection between the second cover plate and the second battery cover is structurally realized through the matching relationship between the clamping piece 8051 and the clamping position 8044, so that the joint can be glued for improving the sealing performance.

Optionally, a notch is formed at the sealing connection position of the first cover plate 801 and the second battery cover 802. When the battery is charged and discharged, the electrolyte soaked in the battery jar 803 pole group generates gas, and the gas is discharged through the vent hole 8023 on the second battery cover 802 and the notch on the first cover plate 801 in sequence.

The present invention and its embodiments have been described above schematically, without limitation, and what is shown in the drawings is only one of the embodiments of the present invention, and the actual structure is not limited thereto. Therefore, if the person skilled in the art receives the teaching, without departing from the spirit of the invention, the person skilled in the art shall not inventively design the similar structural modes and embodiments to the technical solution, but shall fall within the scope of the invention.

Claims

1. A lead-acid storage battery plastic shell is characterized by comprising a battery jar;

one end of the battery jar is sequentially provided with a first battery cover and a first cover plate;

the other end of the battery jar is sequentially provided with a second battery cover and a second cover plate;

and the first battery cover and the second battery cover are respectively provided with a bus bar groove matched with the bus bars on the pole group.

2. The lead-acid battery plastic case of claim 1, wherein the bus bar slot comprises a first bus bar slot on the first battery cover and a second bus bar slot on the second battery cover.

3. The lead-acid battery plastic case of claim 1, wherein a plastic case partition for separating adjacent single-group pole groups is disposed in the battery jar 803.

4. The lead-acid battery plastic shell according to claim 1, wherein one end of the battery jar is provided with a first sealing member, the first battery lid is provided with a first sealing groove, and the first sealing member is matched with the first sealing groove so as to seal one end of the battery jar with the first battery lid;

the other end of the battery jar is equipped with the second sealing member, the second battery lid is equipped with the second seal groove, the second sealing member and the second seal groove phase-match to make the other end of battery jar with the second battery lid is sealed.

5. The lead-acid battery plastic case as claimed in any one of claims 1-4, wherein the first battery cover and the second battery cover are provided with a first protrusion and a second protrusion.

6. The lead-acid battery plastic case of claim 3, wherein the first battery cover and the second battery cover are provided with plastic case separator grooves.

7. The lead-acid battery plastic case as claimed in claim 5, wherein the first battery cover is provided with a positive post groove and a negative post groove corresponding to and respectively matching with the positive post and the negative post of the pole group.

8. The lead-acid battery plastic case as claimed in claim 5, wherein the first battery cover is provided with a vent hole.

9. The lead-acid battery plastic case of claim 5, wherein the second cover plate is provided with a plurality of engaging members, the second battery cover is provided with a plurality of engaging positions, and the engaging members and the engaging positions are matched.

10. The lead-acid battery plastic case as claimed in claim 5, wherein the sealing joint of the first cover plate and the second battery cover is provided with a notch.