CN210576037U

CN210576037U - Lower cover for storage battery, storage battery cover and storage battery

Info

Publication number: CN210576037U
Application number: CN201921301029.8U
Authority: CN
Inventors: 张文龙; 邓全忠; 裴新彬; 周胜文; 宋艳龙; 杜明亮; 任天赐; 张若晨; 陈黎升
Original assignee: Fengfan Co Ltd
Current assignee: Fengfan Co Ltd
Priority date: 2019-08-12
Filing date: 2019-08-12
Publication date: 2020-05-19
Anticipated expiration: 2029-08-12

Abstract

The utility model is suitable for a battery technical field provides a lower cover, battery lid and battery that battery was used. The lower cover for the storage battery is provided with a plurality of lower cover units forming a single cell, each lower cover unit is respectively provided with a liquid injection port, a backflow port and a lower cover backflow sub-channel forming a backflow labyrinth channel, and the bottom surface of the lower cover backflow sub-channel is provided with at least one spine part for reducing the surface tension of condensed liquid. The utility model provides a lower cover that battery was used compares with prior art, through being equipped with the spine portion that can reduce condensate liquid surface tension at the lower cover, promotes condensate liquid's backward flow, reduces condensate liquid because of the difficult backward flow of surface tension effect or the emergence of the slower problem of backward flow.

Description

Lower cover for storage battery, storage battery cover and storage battery

Technical Field

The utility model belongs to the technical field of battery device, more specifically say, relate to a lower cover, battery cover and battery that battery was used.

Background

The maintenance-free battery used by the current automobile and the EFB battery used by the start-stop automobile are all rich liquid storage batteries, and in order to prevent the problem that electrolyte is discharged from an exhaust hole in the use process of the rich liquid storage batteries, a labyrinth backflow structure is designed inside a storage battery cover, so that the discharge path of the electrolyte can be prolonged, and the electrolyte can flow back into the battery in time. The rich liquid battery is in the use, and use under abnormal use or the special condition can produce gas, and part gas can pass through the maze passageway, discharges outside the battery behind the gas filter, still can have part gas to condense on the tegillum, and the condensate body can drip on the maze structure of battery cover, and the liquid drop can flow back inside the battery.

However, when the amount of the condensed liquid is small, the condensed liquid is not easily refluxed or slowly refluxed by the surface tension.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a lower cover that battery was used aims at solving the not smooth technical problem of backward flow caused by surface tension effect when the condensed fluid that current battery cover exists is less.

In order to achieve the above object, the present invention provides a lower cover for a storage battery, which has a plurality of lower cover units forming a single cell, each of the lower cover units has a lower cover backflow sub-channel for injecting liquid into the liquid inlet, a backflow inlet and forming a backflow labyrinth channel, and the bottom surface of the lower cover backflow sub-channel is provided with at least one spine portion for reducing the surface tension of a condensed liquid.

Furthermore, the spine part is of a triangular pyramid structure, and one plane of the triangular pyramid structure is fixedly connected to the bottom surface of the lower cover backflow sub-channel

Another object of the utility model is to provide a battery cover, including foretell lower cover and with the upper cover that the lower cover heat-seal is connected, the upper cover set up in on the lower cover, the lower cover with form the isolation space between the upper cover, on cover and be equipped with the gas vent, it forms a plurality of cells, each to keep apart the corresponding battery cell body unit partition in space the cell is equipped with respectively and is used for the loss gas or supplies the backward flow maze passageway that the condensate liquid flows back.

Furthermore, the isolation space is also provided with an acid storage labyrinth channel and an air escape channel for communicating an outlet of the acid storage labyrinth channel with the air exhaust port, and each backflow labyrinth channel is used for communicating an inlet of the acid storage labyrinth channel with the backflow port.

Further, the depth of the acid storage labyrinth channel is gradually reduced from the inlet of the acid storage labyrinth channel to the outlet of the acid storage labyrinth channel.

Furthermore, the depth of the return labyrinth channel is gradually increased from the return port to the inlet direction of the acid storage labyrinth channel.

Furthermore, the lower cover is provided with a plurality of lower cover labyrinth clapboards, the upper cover is provided with upper cover labyrinth clapboards corresponding to the lower cover labyrinth clapboards, and the lower cover labyrinth clapboards and the upper cover labyrinth clapboards form channel barriers of the acid storage labyrinth channels.

Furthermore, the acid storage labyrinth passage is arranged at one end, far away from the backflow ports, in the isolation space.

Further, the air outlet is arranged on the side part of the upper cover and is adjacent to the return opening.

It is still another object of the present invention to provide a battery, including a battery container with electrolyte and the above-mentioned battery cover.

The utility model provides a lower cover that battery was used compares with prior art, through being equipped with the spine portion that can reduce condensate liquid surface tension at the lower cover, promotes condensate liquid's backward flow, reduces condensate liquid because of the difficult backward flow of surface tension effect or the emergence of the slower problem of backward flow.

Drawings

Fig. 1 is a schematic view of a lower cover for a storage battery according to an embodiment of the present invention;

fig. 2 is a schematic view of an upper cover of a battery cover according to an embodiment of the present invention;

FIG. 3 is an enlarged view taken at A in FIG. 1;

fig. 4 is a partial sectional view at B in fig. 1.

In the figure: 100-lower cover; 101-liquid injection port; 102-lower cover labyrinth partitions; 103-a reflux port; 104-an electrode; 105-a venting area; 110-lower lid return sub-channel; 111-spike portion; 120-lower cover gas escape subchannel; 200-an upper cover; 201-inflow rod; 202-upper cover labyrinth spacer; 203-an exhaust port; 210-lid-up return sub-channel; 220-upper cover escape subchannel.

Detailed Description

In order to make the technical problem, technical solution and advantageous effects to be solved by the present invention more clearly understood, the following description is given in conjunction with the accompanying drawings and embodiments to illustrate the present invention in further detail. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

It should be noted that the terms "length," "width," "height," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "head," "tail," and the like, are used in the orientation or positional relationship indicated in the drawings for convenience in describing the invention and for simplicity in description, and do not indicate or imply that the device or element so referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the invention.

It is also noted that, unless expressly stated or limited otherwise, the terms "mounted," "connected," "secured," "disposed," and the like are intended to be inclusive and mean, for example, that they may be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. Further, "plurality" or "a plurality" means two or more unless specifically limited otherwise.

Referring to fig. 1 to 3, an embodiment of a lower cover for a storage battery according to the present invention will now be described. The embodiment of the utility model provides a can form the isolation space after lower cover 100 and the upper cover 200 heat-seal for the battery to constitute the battery lid. The isolation space is separated into a plurality of single lattices corresponding to the storage battery groove body unit. The lower cover 100 has a plurality of lower cover units, the upper cover 200 has a plurality of upper cover units, the lower cover units are the partition areas defined by the partition boards in the lower cover 100, the upper cover units are the partition areas defined by the partition boards in the upper cover 100, and the lower cover units and the upper cover units are in one-to-one correspondence. The lower cover unit and the corresponding upper cover unit can form a corresponding unit cell only after the upper cover 200 and the lower cover 100 are heat sealed.

Each unit cell is respectively provided with a return labyrinth channel for gas escape or return of condensed liquid, a liquid injection port 101 and a return port 103, the gas of each unit cell is communicated with the exhaust port 203 through the return labyrinth channel and escapes, and the condensed liquid returns to the return port 103 through the return labyrinth channel and then returns to the battery tank. The pouring port 101 and the return port 103 are provided in the lower cover unit. The lower cover unit has a lower cover return sub-channel 110 forming a return labyrinth channel, the upper cover unit has an upper cover return sub-channel 210 forming a return labyrinth channel, and the lower cover return sub-channel 110 and the corresponding upper cover return sub-channel 210 can form a corresponding return labyrinth channel only after the upper cover 200 and the lower cover 100 are heat-sealed.

The above is the prior art, and is not described herein again.

At least one spike 111 for reducing the surface tension of the condensed liquid is provided on the bottom surface of each lower cover return sub-passage 110. The spike 111 may be a sharp structure such as a needle-pricked column or a conical protrusion. The lower cover return sub-passage 110 is located at the lower portion of the return labyrinth passage, so that the condensed liquid is collected in the lower cover return sub-passage 110 by gravity, and when the amount of the condensed liquid is small, the condensed liquid may not easily return or may slowly return due to the surface tension, but the spike 111 helps to pierce the surface of the condensed liquid, thereby reducing the surface tension of the condensed liquid and allowing the condensed liquid to quickly return.

The embodiment of the utility model provides a lower cover that battery was used compares with prior art, is equipped with the spine portion that can reduce condensate liquid surface tension through at the lower cover, promotes condensate liquid's backward flow, reduces condensate liquid because of the difficult backward flow of surface tension effect or the emergence of the slower problem of backward flow.

Referring to fig. 1 and 3, as a specific embodiment of the lower cover for the storage battery according to the present invention, the spine portion 111 is a triangular pyramid structure, one of the planes of the triangular pyramid structure is fixedly connected to the bottom surface of the lower cover backflow sub-channel 110, and one of the points (vertexes) of the triangular pyramid structure protrudes from the bottom surface of the lower cover backflow sub-channel 110.

Referring to fig. 1 and 2, the present invention further provides a battery cover, which includes a lower cover 100 and an upper cover 200 heat-sealed to the lower cover 100, wherein the upper cover 200 is disposed on the lower cover 100. After the heat sealing connection, an isolation space is formed between the lower cover 100 and the upper cover 200, the upper cover 200 is provided with an exhaust port 203, and the isolation space is separated into a plurality of cells corresponding to the storage battery groove body unit. The non-heat-sealed regions of the lower cover 100 and the upper cover 200 are provided with electrodes 104. The insulation space includes a discharge part including a lower cover discharge area 105 provided on the lower cover 100 and a discharge area provided on the upper cover 200, the lower cover discharge area 105 and the discharge area on the upper cover 200 constituting the discharge part, and a discharge port 203 provided on the upper cover 200.

The lower cover 100 has a plurality of lower cover units, the upper cover 200 has a plurality of upper cover units, the lower cover units are the partition areas defined by the partition boards in the lower cover 100, the upper cover units are the partition areas defined by the partition boards in the upper cover 100, and the lower cover units and the upper cover units are in one-to-one correspondence. The lower cover unit and the corresponding upper cover unit can form a corresponding unit cell only after the upper cover 200 and the lower cover 100 are heat sealed.

Each cell is provided with a liquid injection port 101, a return port 103, and a return labyrinth passage for escaping or returning gas. The gas in each cell is conducted through the gas outlet 203 and escapes, and the condensate returns to the return port 103 through the return labyrinth passage and then to the battery container.

The pouring port 101 and the return port 103 are provided in the lower lid unit, the upper lid 200 is provided with an inflow rod 201 corresponding to the pouring port 101, and the inflow rod 201 is sealingly inserted into the pouring port 101. The lower cover unit has a lower cover return sub-passage 110 forming a return labyrinth passage, the upper cover unit has an upper cover return sub-passage 210 forming a return labyrinth passage, the lower cover return sub-passage 110 is formed by a baffle provided on the lower cover 100, and the upper cover return sub-passage 210 is formed by a baffle provided on the upper cover 200. The lower lid return sub-passage 110 and the corresponding upper lid return sub-passage 210 form a corresponding return labyrinth passage only after the upper lid 200 and the lower lid 100 are heat sealed.

The embodiment of the utility model provides a storage battery cover compares with prior art, is equipped with the spine portion that can reduce condensate liquid surface tension through at the lower cover, promotes condensate liquid's backward flow, reduces condensate liquid because of the difficult backward flow of surface tension effect or the emergence of the slower problem of backward flow.

Referring to fig. 1 and 2, as a specific embodiment of the battery cover provided by the present invention, a part of the isolation space is an acid storage (liquid storage) area, an acid storage labyrinth channel is further disposed in the area, the isolation space is further provided with an air escape channel for communicating an outlet of the acid storage labyrinth channel with an air outlet 203 (of an air exhaust portion), and each return labyrinth channel is used for communicating an inlet of the acid storage labyrinth channel with a return port 103. The lower cover 100 has a lower cover air-escape subchannel 120 forming an air-escape channel, the upper cover 200 has an upper cover air-escape subchannel 220 forming an air-escape channel, the lower cover air-escape subchannel 120 is formed by a baffle provided on the lower cover 100, and the upper cover air-escape subchannel 220 is formed by a baffle provided on the upper cover 200. The lower cover air-escape sub-channels 120 and the corresponding upper cover air-escape sub-channels 220 form corresponding air-escape channels only after the upper cover 200 and the lower cover 100 are heat-sealed.

When the gas production amount is increased, the condensate liquid can be collected in the backflow labyrinth passage firstly and then collected in the acid storage labyrinth passage, the condensate liquid can be always positioned at the lower parts of the backflow labyrinth passage and the acid storage labyrinth passage under the action of gravity, the upper part of the backflow labyrinth passage and the upper part of the acid storage labyrinth passage can still allow gas to pass through, and the gas can finally reach the gas outlet 203 through passing through the backflow labyrinth passage and the acid storage labyrinth passage in sequence. The acid storage labyrinth channel is arranged to increase the acid storage amount and prolong the discharge path of the condensed liquid, so that the detention time of the condensed liquid is increased, a time opportunity is created for the backflow of the condensed liquid, and the problem of acid leakage of the exhaust hole is effectively avoided.

Referring to fig. 1 and fig. 4, as a specific embodiment of the battery cover provided by the present invention, the depth of the acid storage labyrinth channel is gradually decreased from the inlet of the acid storage labyrinth channel to the outlet of the acid storage labyrinth channel, i.e. the depth of the inlet of the acid storage labyrinth channel is the largest, so as to further delay the outflow of the condensed liquid, which is not beneficial to the flow of the condensed liquid to the direction of the gas outlet 203.

Referring to fig. 1 and 4, as a specific embodiment of the battery cover provided by the present invention, the depth change of the acid storage labyrinth passage is mainly realized by the inclination of the bottom plate of the lower cover 100.

As a specific embodiment of the utility model provides a battery cover, the degree of depth of backward flow maze passageway is crescent to the import direction of storing up sour maze passageway by backward flow mouth 103 to the backward flow of condensed liquid. Also, the depth variation of the return labyrinth passage is mainly achieved by the inclination tendency arrangement of the bottom plate of the lower cover 100.

Referring to fig. 1 and 2, as a specific embodiment of the battery cover of the present invention, a plurality of first labyrinth partitions 102 are disposed on the lower cover 100, and a second labyrinth partition 202 corresponding to the first labyrinth partition 102 is disposed on the upper cover 200, so that the first labyrinth partition 102 and the second labyrinth partition 202 form a passage partition of the acid storage labyrinth passage after the lower cover 100 and the upper cover 200 are heat sealed.

Referring to fig. 1 and 2, as a specific embodiment of the battery cover provided by the present invention, the acid storage labyrinth passage is disposed at one end of the isolation space far away from each backflow port 103, that is, the acid storage labyrinth passage and each backflow port 103 are respectively located at two ends of the isolation space, so as to increase the length of the backflow labyrinth passage as much as possible.

Referring to fig. 1 and 2, as an embodiment of the battery cover provided by the present invention, an exhaust port 203 (of the exhaust part) is disposed at a side portion of the upper cover 200 adjacent to the return port 103, so that the length of the air escape passage can be further increased as much as possible.

As a specific embodiment of the battery cover of the present invention, the air outlet 203 is provided with an air filter.

The utility model also provides a storage battery, including the battery jar that is equipped with electrolyte and the battery lid in the above-mentioned embodiment.

The embodiment of the utility model provides a battery compares with prior art, is equipped with the spine portion that can reduce condensate liquid surface tension through at the lower cover, promotes the backward flow of condensate liquid, reduces the condensate liquid because of the difficult backward flow of surface tension effect or the emergence of the slower problem of backward flow.

The above description is only exemplary of the present invention and should not be taken as limiting the scope of the present invention, as any modifications, equivalents, improvements and the like made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.

Claims

1. The lower cover for the storage battery is provided with a plurality of lower cover units forming a single cell, each lower cover unit is respectively provided with a liquid injection port, a backflow port and a lower cover backflow sub-channel forming a backflow labyrinth channel, and the lower cover backflow sub-channel is characterized in that the bottom surface of the lower cover backflow sub-channel is provided with at least one spine part for reducing the surface tension of condensed liquid.

2. The lower cap as claimed in claim 1, wherein the spike is a triangular pyramid structure, one of the planes of which is fixedly connected to the bottom surface of the lower cap backflow sub-channel.

3. The storage battery cover is characterized by comprising a lower cover and an upper cover, wherein the lower cover is as claimed in claim 1 or 2, the upper cover is in heat-sealing connection with the lower cover, the upper cover is arranged on the lower cover, an isolation space is formed between the lower cover and the upper cover, an air outlet is formed in the upper cover, the isolation space is separated into a plurality of single cells corresponding to the storage battery body unit, and each single cell is respectively provided with a backflow labyrinth channel for air escape or backflow of condensed liquid.

4. The battery cover according to claim 3, wherein the isolated space is further provided with an acid storage labyrinth passage and an air escape passage communicating an outlet of the acid storage labyrinth passage and the air vent, and each of the return labyrinth passages is used for communicating an inlet of the acid storage labyrinth passage and the return port.

5. The battery cover according to claim 4, wherein the depth of the acid storage labyrinth passage is gradually reduced from the inlet of the acid storage labyrinth passage toward the outlet of the acid storage labyrinth passage.

6. The battery cover according to claim 4, wherein the depth of the return labyrinth passage gradually increases from the return port toward the inlet of the acid storage labyrinth passage.

7. The battery cover according to claim 4, wherein the lower cover is provided with a plurality of lower cover labyrinth partitions, the upper cover is provided with upper cover labyrinth partitions corresponding to the lower cover labyrinth partitions, and the lower cover labyrinth partitions and the upper cover labyrinth partitions form a passage barrier of the acid storage labyrinth passage.

8. The battery cover of claim 4, wherein said acid storage labyrinth passage is disposed at an end of said isolated space remote from each of said return ports.

9. The battery cover of claim 8, wherein the exhaust port is disposed at a side portion of the upper cover adjacent to the return port.

10. Battery comprising a battery container provided with an electrolyte, characterized in that it further comprises a battery cover according to any of claims 3-9.