CN216750082U

CN216750082U - Modularized lead-acid battery

Info

Publication number: CN216750082U
Application number: CN202122925005.3U
Authority: CN
Inventors: 陈建; 王德力; 陈冬; 丁平; 吴贤章; 苑景春; 郭之球; 董炎军; 张育红
Original assignee: Jieshou Nandu Huayu Power Source Co Ltd
Current assignee: Huayu New Energy Technology Co Ltd
Priority date: 2021-11-25
Filing date: 2021-11-25
Publication date: 2022-06-14
Anticipated expiration: 2031-11-25

Abstract

The utility model discloses a modularization lead acid battery, including battery case to and install a plurality of positive negative polar plate in battery case, battery case includes a plurality of module casings that can dismantle and link together, and is a plurality of module casings are piled up together from top to bottom, have the polar plate groove between two adjacent module casings, the polar plate inslot is piled up at least one positive plate and at least one negative plate to and locate the baffle between positive plate and the negative plate, positive plate and negative plate are made by the grid that thickness is 0.1-1 mm. To the technical problem that the product percent of pass is low when the thin polar plate of installation of current battery structure, the utility model provides a modularization lead acid battery, it can accomplish the installation of thin polar plate fixed, improves the product percent of pass, improves the battery performance simultaneously.

Description

Modularized lead-acid battery

Technical Field

The utility model relates to a lead acid battery technical field, concretely relates to modularization lead acid battery.

Background

The AGM separators are respectively coated by positive and negative plates of the battery cluster and then are well stacked in a staggered manner, the cluster is pushed into a battery tank with a cavity in a manual or mechanical manner, the lugs are connected in an auxiliary welding or manual welding manner, and the battery cover is sealed with the battery tank through glue sealing.

The main defects are as follows: (1) the positive and negative plates are thicker, especially the grids, so that the cost of the battery material can only be reduced to a certain degree (2) when the grids are manufactured by adopting thinner stamping plates, the grids are easy to deform when being inserted into a battery groove body, so that the battery is short-circuited and fails, and the product percent of pass is low.

SUMMERY OF THE UTILITY MODEL

1. Technical problem to be solved by the utility model

To the technical problem that product percent of pass is low when the thinner polar plate of current battery structure installation, the utility model provides a modularization lead acid battery, it can accomplish the installation of thinner polar plate fixed, improves the product percent of pass, improves the battery performance simultaneously.

2. Technical scheme

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

the utility model provides a modularization lead acid battery, includes battery case to and install a plurality of positive and negative polar plate in battery case, battery case includes a plurality of module casings that link together of dismantling, and is a plurality of module casings are piled together from top to bottom, have the polar plate groove between two adjacent module casings, the polar plate inslot is piled up at least one positive plate and at least one negative plate to and locate the baffle between positive plate and the negative plate, positive plate and negative plate are made by the grid that thickness is 0.1-1 mm.

Alternatively, a plurality of the module housings are stacked up and down, and the pole plate groove is provided on the lower module housing of the adjacent two module housings and sealed by the upper module housing.

Optionally, the module housing further comprises a positioning structure for positioning and connecting two adjacent module housings.

Optionally, the positioning structure includes a positioning protrusion disposed on one of the two adjacent module housings, and a positioning groove disposed on the other module housing.

Optionally, the positioning protrusion and the positioning groove are both arranged along the edge of the module case.

Optionally, the plate grooves are provided with a plurality of positive plates and a plurality of negative plates, and separators are arranged between the positive plates and the negative plates, and the positive plates and the negative plates are sequentially and alternately laminated together

Optionally, the number of positive plates is the same as or at most one less than the number of negative plates.

Optionally, the battery further comprises a fixed shell integrally formed on the outer side of the battery shell.

S1, adopting a stamping process to manufacture a grid with the thickness of 0.1-1mm, and then attaching active substances on the grid through a paste coating process to manufacture a polar plate with the thickness of 0.5-2.3 mm; s2, alternately laminating the positive plates and the negative plates on one module shell through separators, and sealing the module shell through the other module shell; s3, repeating the steps to laminate a plurality of module shells together; s4, sequentially connecting the positive electrodes and the negative electrodes in the plurality of electrode plate grooves in series to form a passage; and S5, manufacturing a fixed shell outside the module shells in an integrated forming mode.

3. Advantageous effects

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

(1) the modularized lead-acid battery breaks through the structural limitation of the traditional lead-acid battery, and because the adjacent two module shells 1 are detachably connected, when a positive plate and a negative plate which are made of ultrathin grids are installed, the installation mode of the polar plates is changed from the traditional insertion mode to the horizontal stacking mode, so that the installation and fixation of the thinner polar plates can be completed, and the product percent of pass is improved; the positive plate and the negative plate are made of ultrathin grids, so that the lead alloy consumption of the grids is reduced, and the material cost is reduced; in addition, the lead-acid battery made of the ultrathin polar plate has the advantages that the utilization rate of active substances is improved due to the thinning of the polar plate, the polar distance is reduced, the large-current performance of the battery is excellent, and the performance of the battery is greatly improved.

Drawings

Fig. 1 is a schematic structural diagram of a modular lead-acid battery according to an embodiment of the present invention;

fig. 2 is a schematic cross-sectional view of a modular lead-acid battery according to an embodiment of the present invention;

FIG. 3 is a partial schematic view of FIG. 2 at A;

fig. 4 is a schematic structural diagram of a module housing in a modular lead-acid battery according to an embodiment of the present invention;

fig. 5 is a schematic diagram of a front electrode connection of a modular lead-acid battery according to an embodiment of the present invention;

1. a module housing; 1a, a polar plate groove; 2. a positive plate; 3. a negative plate; 4. a partition plate; 5. positioning the projection; 6. positioning a groove; 7. the housing is fixed.

Detailed Description

For a further understanding of the present invention, reference will be made to the following detailed description of the invention, taken in conjunction with the accompanying drawings 1-5.

Referring to fig. 1-5, a modular lead-acid battery of this embodiment includes a battery case and a plurality of positive and negative electrode plates mounted in the battery case, the battery case includes a plurality of module cases 1 detachably connected together, a plurality of module cases 1 are stacked up and down, a plate slot 1a is provided between two adjacent module cases 1, at least one positive plate 2 and at least one negative plate 3 are stacked in the plate slot 1a, and a separator 4 is provided between the positive plate 2 and the negative plate 3, the positive plate 2, the negative plate 3 and the separator 4 are horizontally stacked above the module case 1, if there are a plurality of positive plates 2 and negative plates 3, a plurality of positive plates 2 and negative plates 3 are sequentially stacked in an interleaved manner (i.e. there are necessarily one positive plate 2 and one negative plate 3 on both sides of the separator), the quantity of the positive plate 2 is the same as that of the negative plate 3 or at least one less positive plate 2, the thickness of the positive plate 2 and the thickness of the negative plate 3 are 0.5-2.3mm, the positive plate 2 and the negative plate 3 are made by attaching active substances on a grid through a paste coating process by the grid with the thickness of 0.1-1mm, the tabs of the positive plate 2 in the same plate groove 1a are welded together to form a positive conductive tab (V +), the tabs of the negative plate 3 in the same plate groove 1a are welded together to form a negative conductive tab (V-), finally, the positive conductive tabs (V +) and the negative conductive tabs (V-) in all the plate grooves 1a are sequentially connected in series to form a passage, and the positive conductive tab (V +) and the negative conductive tab (V-) in the outermost side are separately led out.

S1, adopting a stamping process to manufacture a grid with the thickness of 0.1-1mm, and then attaching active substances on the grid through a paste coating process to manufacture a polar plate with the thickness of 0.5-2.3 mm; s2, alternately laminating the positive plates and the negative plates on one module shell through separators, and sealing the module shell through the other module shell; s3, repeating the steps to laminate a plurality of module shells together; s4, sequentially connecting the positive electrodes and the negative electrodes in the plurality of electrode plate grooves in series to form a passage; and S5, forming a fixed shell outside the module shells in an integrated forming mode to form a complete battery with the voltage of 2nV (n is the number of layers).

The modularized lead-acid battery breaks through the structural limitation of the traditional lead-acid battery, and because the adjacent two module shells 1 are detachably connected, when a positive plate and a negative plate which are made of ultrathin grids are installed, the installation mode of the polar plates is changed from the traditional insertion mode to the horizontal stacking mode, so that the installation and fixation of the thinner polar plates can be completed; the positive plate and the negative plate are made of ultrathin grids, so that the lead alloy consumption of the grids is reduced, and the material cost is reduced; in addition, the lead-acid battery made of the ultrathin polar plate has the advantages that the utilization rate of active substances is improved due to the thinning of the polar plate, the polar distance is reduced, the large-current performance of the battery is excellent, and the performance of the battery is greatly improved.

As the utility model discloses an alternative, polar plate groove 1a is located on the module casing 1 of two adjacent module casings 1 below to it is sealed through the module casing 1 of more top, module casing 1 is the plastic slab that the terminal surface undercut formed polar plate groove 1a, and above-mentioned mode can prevent to install when polar plate groove 1a with positive plate and negative plate range upon range of, because the degree of depth in polar plate groove 1 leads to positive plate and negative plate landing inadequately (compare and open respectively on two adjacent module casings 1 in polar plate groove 1 a).

As the utility model discloses an alternative, in order to guarantee the location of two adjacent module casing 1 and connect, still including the location structure who is used for the location to connect two adjacent module casing 1, in this embodiment, location structure is including locating protruding 5 in the location on one of them module casing 1 of two adjacent module casing 1 to and locate constant head tank 6 on another module casing 1, and the protruding 5 in location and the constant head tank 6 of location on the protruding 5 in location cooperate, the protruding 5 in location and the constant head tank 6 all set up along module casing 1's edge, so that after protruding 5 in location and the cooperation of constant head tank 6, not only can play the effect of location connection, can also guarantee the leakproofness of two adjacent module casing 1 edge connection position.

As the utility model discloses an alternative, still include fixed shell 7 in order to improve the connection stability of a plurality of module casing bodies that laminate together, fixed shell 7 integrated into one piece is in battery case's the outside, fixed shell 7 integrated into one piece's mode can be for the secondary package mould fixed, also can be that hot melt is sealed fixed and glue is sealed fixed, in this embodiment, fixed shell 7 integrated into one piece's mode is preferably that the secondary package moulds fixedly, with a plurality of module casing bodies that laminate together put into secondary injection mold rubber coating together can.

The present invention and its embodiments have been described above schematically, and the description is not limited thereto, 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 of the present invention, without departing from the inventive spirit of the present invention, the person skilled in the art should also design the similar structural modes and embodiments without creativity to the technical solution, and all shall fall within the protection scope of the present invention.

Claims

1. The utility model provides a modularization lead acid battery, includes battery case to and install a plurality of positive negative plate in battery case, its characterized in that: the battery shell comprises a plurality of module shells which are detachably connected together, wherein the module shells are stacked together up and down, an electrode plate groove is formed between every two adjacent module shells, at least one positive plate and at least one negative plate are stacked in the electrode plate groove, a partition plate is arranged between the positive plate and the negative plate, and the positive plate and the negative plate are made of a plate grid with the thickness of 0.1-1 mm.

2. A modular lead-acid battery according to claim 1, characterized in that: the plurality of module shells are stacked together up and down, and the polar plate groove is arranged on the lower module shell of the two adjacent module shells and is sealed by the upper module shell.

3. A modular lead-acid battery according to claim 1, characterized in that: the module shell positioning structure further comprises a positioning structure for positioning and connecting two adjacent module shells.

4. A modular lead-acid battery according to claim 3, characterized in that: the positioning structure comprises a positioning bulge arranged on one of the two adjacent module shells and a positioning groove arranged on the other module shell.

5. A modular lead-acid battery according to claim 4, characterized in that: the positioning protrusions and the positioning grooves are arranged along the edge of the module shell.

6. A modular lead-acid battery according to any of claims 1 to 5, characterised in that: the negative plate groove is internally provided with a plurality of positive plates, a plurality of negative plates and a partition board arranged between the positive plates and the negative plates, and the positive plates and the negative plates are sequentially staggered and laminated together.

7. A modular lead-acid battery according to claim 6, characterized in that: the number of the positive plates is the same as or at most one less than that of the negative plates.

8. A modular lead-acid battery according to any of claims 1 to 5, characterised in that: still include fixed shell, fixed shell integrated into one piece is in battery case's the outside.