CN210272440U - Battery cover and battery - Google Patents

Abstract

The utility model is suitable for a battery technical field provides a battery cover and battery. The battery cover includes big lid and the exhaust lid of being connected with big lid heat-seal, the exhaust lid sets up on big lid, form the isolation space between big lid and the exhaust lid, be equipped with the gas vent on the exhaust lid, isolation space corresponds battery cell body unit and separates and form a plurality of simple lattices, each simple lattice is equipped with respectively annotates the liquid mouth, the backward flow mouth and be used for the return flow maze passageway of ease gas or refluence, isolation space still is equipped with stores up sour maze passageway and switches on the export of storing up sour maze passageway and the ease gas passageway of gas vent, each return flow maze passageway is used for switching on the import and the backward flow mouth of storing up sour maze passageway. The utility model provides a storage battery cover stores up sour maze passageway of storage of acid amount through setting up the discharge route that can prolong the condensate liquid and increase, increases the detention time of condensate liquid to for the backward flow increase time of condensate liquid, effectively avoid the problem that exhaust hole leaks acid.

Description

Battery cover and battery

Technical Field

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

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 gas generated by the battery is too large, the backflow of the condensed liquid is blocked and the condensed liquid flows to the filter disc along the exhaust direction to be accumulated, and thus the risk of acid leakage of the exhaust hole due to the fact that the filter disc is wetted is caused.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a battery cover, the gas production that aims at solving current rich liquid battery existence is too big, the condensate liquid probably causes the technical problem of exhaust hole acid leakage.

For realizing the above-mentioned purpose, the technical scheme of the utility model be, provide a storage battery cover, including big lid and with the exhaust lid that big lid heat-seal is connected, the exhaust lid set up in on big lid, big lid with form the isolation space between the exhaust lid, the exhaust is covered and is equipped with the gas vent, the isolation space corresponds battery cell body unit partition and forms a plurality of simple lattices, each the simple lattice is equipped with respectively and annotates liquid mouth, backward flow mouth and is used for the backward flow maze passageway of ease gas or refluence, the isolation space still is equipped with and stores up sour maze passageway and switches on store up sour maze passageway's export with the ease gas passageway of gas vent, each backward flow maze passageway is used for switching on store up sour maze passageway's import with the backward flow mouth.

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, a plurality of first labyrinth clapboards are arranged on the large cover, second labyrinth clapboards corresponding to the first labyrinth clapboards are arranged on the exhaust cover, and the first labyrinth clapboards and the second 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 exhaust port is disposed at a side portion of the exhaust cover and adjacent to the return port.

Furthermore, an air filter disc is arranged at the air outlet.

Another object of the present invention is to provide a battery, including a battery container with electrolyte and the above battery cover.

The utility model provides a storage battery cover compares with prior art, can prolong the discharge route of condensate liquid and the sour maze passageway of storage of volume is stored up in the increase through the setting, increases the detention time of condensate liquid to for the backward flow increase time of condensate liquid, effectively avoid the problem that the exhaust hole leaks sour.

Drawings

Fig. 1 is a schematic view of a middle cover and a large cover of a storage battery cover according to an embodiment of the present invention;

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

fig. 3 is a partial sectional view at a in fig. 1.

In the figure: 100-big cover; 101-liquid injection port; 102-large lid labyrinth partitions; 103-a reflux port; 104-an electrode; 105-a venting area; 110-big lid return sub-channel; 111-spike portion; 120-big cover escape gas sub-channel; 200-an exhaust cover; 201-inflow rod; 202-exhaust cover labyrinth plate; 203-an exhaust port; 210-exhaust cap return sub-channel; 220-exhaust cap 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 2, an embodiment of a battery cover according to the present invention will now be described. The battery cover comprises a large cover 100 and an exhaust cover 200 connected with the large cover 100 in a heat sealing way, wherein the exhaust cover 200 is arranged on the large cover 100. After the heat sealing connection, an isolation space is formed between the large cover 100 and the exhaust cover 200, the exhaust cover 200 is provided with an exhaust port 203, and the isolation space is separated into a plurality of single cells corresponding to the storage battery groove body unit. The non-heat-sealed areas of the large lid 100 and the exhaust lid 200 are provided with electrodes 104. The insulation space includes a discharge part including a large-cap discharge area 105 provided on the large cap 100 and a discharge area provided on the discharge cap 200, the large-cap discharge area 105 and the discharge area on the discharge cap 200 constituting the discharge part, and a discharge port 203 provided on the discharge cap 200.

The large cover 100 has a plurality of large cover units, the exhaust cover 200 has a plurality of exhaust cover units, the large cover units are partition areas defined by baffles in the large cover 100, the exhaust cover units are partition areas defined by baffles in the exhaust cover 100, and the large cover units and the exhaust cover units are in one-to-one correspondence. The large lid unit and the corresponding exhaust lid unit can be assembled into a corresponding unit cell after the exhaust lid 200 and the large lid 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 large lid unit, the vent 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 large lid unit has a large lid return sub-passage 110 forming a return labyrinth passage, the exhaust lid unit has an exhaust lid return sub-passage 210 forming a return labyrinth passage, the large lid return sub-passage 110 is formed by a baffle provided on the large lid 100, and the exhaust lid return sub-passage 210 is formed by a baffle provided on the exhaust lid 200. The large lid return sub-passage 110 and the corresponding exhaust lid return sub-passage 210 form a corresponding return labyrinth passage only after the exhaust lid 200 and the large lid 100 are heat sealed.

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

A part of the isolation space is an acid storage (liquid storage) area, an acid storage labyrinth passage is further arranged in the area, an outlet for communicating the acid storage labyrinth passage and an air escape passage of the air exhaust port 203 (of the air exhaust part) are further arranged in the isolation space, and each return labyrinth passage is used for communicating an inlet of the acid storage labyrinth passage and the return port 103. The large lid 100 has a large lid air escape subchannel 120 forming an air escape channel, the exhaust lid 200 has an exhaust lid air escape subchannel 220 forming an air escape channel, the large lid air escape subchannel 120 is formed by a baffle provided on the large lid 100, and the exhaust lid air escape subchannel 220 is formed by a baffle provided on the exhaust lid 200. The large lid air-escape sub-channels 120 and the corresponding exhaust lid air-escape sub-channels 220 form corresponding air-escape channels after the exhaust lid 200 and the large lid 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 passage can firstly increase the acid storage amount and can also prolong the discharge path of the condensed liquid, thereby increasing the residence time of the condensed liquid and creating time opportunities for the backflow of the condensed liquid.

The embodiment of the utility model provides a storage battery cover compares with prior art, can prolong the discharge route of condensate liquid and the sour maze passageway of storage of volume is stored up in the increase through the setting, increases the detention time of condensate liquid to for the backward flow increase time of condensate liquid, effectively avoid the problem that the exhaust hole leaks acid.

Referring to fig. 1 and fig. 3, 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 3, 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 large 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 large lid 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 large cover 100, a second labyrinth partition 202 corresponding to the first labyrinth partition 102 is disposed on the exhaust cover 200, and after the large cover 100 and the exhaust cover 200 are heat-sealed, the first labyrinth partition 102 and the second labyrinth partition 202 form a passage partition of the acid storage labyrinth passage.

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 exhaust 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 storage battery compares with prior art, can prolong the discharge path of condensate liquid and the sour maze passageway of storage of volume is stored up in the increase through the setting, increases the detention time of condensate liquid to for the backward flow increase time of condensate liquid, effectively avoid the problem that the exhaust hole leaks sour.

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 (8)

1. The utility model provides a storage battery cover, including big lid and with the exhaust lid that big lid heat-seal is connected, the exhaust lid set up in on the big lid, big lid with form the isolation space between the exhaust lid, the exhaust is covered and is equipped with the gas vent, the isolation space corresponds battery cell body unit and separates and form a plurality of unit check, each the unit check is equipped with respectively annotates liquid mouth, backward flow mouth and is used for the backward flow maze passageway of ease gas or refluence, a serial communication port, the isolation space still is equipped with stores up sour maze passageway and switches on store up sour maze passageway the export with the ease gas passageway of gas vent, each backward flow maze passageway is used for switching on store up sour maze passageway the import with the backward flow mouth.

2. The battery cover according to claim 1, 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.

3. The battery cover according to claim 1, wherein the depth of the return labyrinth passage gradually increases from the return port toward the inlet of the acid storage labyrinth passage.

4. The battery cover according to claim 1, wherein a plurality of first labyrinth partitions are provided on the large cover, and a second labyrinth partition corresponding to the first labyrinth partition is provided on the exhaust cover, the first labyrinth partition and the second labyrinth partition forming a passage barrier of the acid storage labyrinth passage.

5. The battery cover of claim 1, wherein said acid storage labyrinth passage is disposed at an end of said isolated space remote from each of said return ports.

6. The battery cover of claim 5, wherein the exhaust port is disposed at a side portion of the exhaust cover adjacent to the return port.

7. The battery cover of claim 1, wherein an air filter is provided at the air outlet.

8. Battery comprising a battery container provided with an electrolyte, characterized in that it further comprises a battery cover according to any of claims 1-7.

Images