CN113594621A

CN113594621A - Exhaust device for filling type battery

Info

Publication number: CN113594621A
Application number: CN202110826320.2A
Authority: CN
Inventors: 何南海
Original assignee: Ningbo Xiaoding Technology Co ltd
Current assignee: Ningbo Xiaoding Technology Co ltd
Priority date: 2021-07-21
Filing date: 2021-07-21
Publication date: 2021-11-02

Abstract

The application provides a filling type battery exhaust device which comprises a shell, wherein a prefabricated hole is formed in the shell, a prefabricated fragment is arranged in the prefabricated hole, the prefabricated fragment is detachably and fixedly connected with the inner wall of the prefabricated hole, and the connection structural strength between the prefabricated fragment and the shell is smaller than that of the shell; fillers are arranged between the prefabricated fragments and the inner walls of the prefabricated holes and surround the prefabricated fragments, the fillers are fixedly connected with the prefabricated fragments and the inner walls of the prefabricated holes respectively, and the structural strength of the fillers is smaller than that of the shell; when the internal pressure of the battery is too high, the prefabricated fragments fall off from the shell at first, so that the pressure of the shell is relieved, and the shell is prevented from exploding.

Description

Exhaust device for filling type battery

Technical Field

The application relates to the technical field of battery protection, in particular to a filling type battery exhaust device.

Background

The prior art batteries generally comprise a casing, a cathode, an anode, an electrolyte and an electrolyte, wherein the cathode and the anode are inserted into the electrolyte, the electrolyte is dissolved in the electrolyte, and the difference of redox properties of the cathode and the anode in the electrolyte is utilized to generate directional charge flow to form current. During the charging and discharging process of the battery, chemical reaction continuously occurs inside the battery, heat is generated, and a part of gas is generated, so that when the battery is in a sealed state and the gas quantity is large, the shell is easy to explode due to the fact that the internal pressure is too large.

Disclosure of Invention

The application provides a filled battery exhaust apparatus for solve the problem that the casing of battery among the prior art leads to the explosion easily when interior pressure is too big.

In order to achieve the above purpose, the embodiments of the present application propose the following technical solutions:

the utility model provides a filled type battery exhaust apparatus, includes the casing, be equipped with prefabricated hole on the casing, be equipped with prefabricated broken piece in the prefabricated hole, prefabricated broken piece with the detachable fixed connection of prefabricated downthehole wall, prefabricated broken piece with connection structure intensity between the casing is less than the structural strength of casing.

In some embodiments, a filler is disposed between the prefabricated fragments and the inner wall of the prefabricated hole, the filler is disposed around the prefabricated fragments, the filler is fixedly connected to the prefabricated fragments and the inner wall of the prefabricated hole, and the structural strength of the filler is smaller than that of the shell.

In some embodiments, the mounting seat is detachably and fixedly connected in the prefabricated hole, a mounting opening is formed in the mounting seat, the prefabricated fragment is located in the mounting opening, and the connection strength between the prefabricated fragment and the inner wall of the mounting opening is smaller than that between the mounting seat and the inner wall of the prefabricated hole.

In some embodiments, the mounting seat is in threaded connection with the inner wall of the preformed hole.

In some embodiments, a filler is disposed between the prefabricated fragment and the inner wall of the installation opening, the filler is disposed around the prefabricated fragment, the filler is fixedly connected to the prefabricated fragment and the inner wall of the installation opening, and the connection strength between the filler and the prefabricated fragment is smaller than the connection strength between the installation seat and the inner wall of the prefabricated hole.

In some embodiments, the connection strength between the filler and the inner wall of the mounting opening is less than the connection strength between the mounting seat and the inner wall of the prefabricated hole.

In some embodiments, the preformed fragment has a plurality.

In some embodiments, a plurality of the preformed fragments are located on the same face of the shell.

Drawings

In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative efforts.

Fig. 1 is a schematic structural diagram of a packed battery exhaust device in an embodiment of the present application;

FIG. 2 is a cross-sectional view taken along line A-A of FIG. 1;

FIG. 3 is a cross-sectional view taken in the direction B-B of FIG. 2;

FIG. 4 is a schematic view of another embodiment of the present application showing a preformed fragment-to-shell connection;

fig. 5 is an exploded view of the preformed fragment-to-shell connection of fig. 4.

Reference numerals:

101. a housing; 102. prefabricating holes; 103. prefabricating fragments; 104. a filler; 105. a mounting seat; 106. and (7) installing the opening.

Detailed Description

Embodiments of the present application will be described in further detail below with reference to the drawings and examples. The following examples are intended to illustrate the present application but are not intended to limit the scope of the present application.

In the description of the embodiments of the present application, it should be noted that the terms "center", "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of describing the embodiments of the present application and simplifying the description, but do not indicate or imply that the referred devices or elements must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the embodiments of the present application. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the embodiments of the present application, it should be noted that the terms "connected" and "connected" are to be interpreted broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected, unless explicitly stated or limited otherwise; can be mechanically or electrically connected; may be directly connected or indirectly connected through an intermediate. Specific meanings of the above terms in the embodiments of the present application can be understood in specific cases by those of ordinary skill in the art.

In the embodiments of the present application, unless otherwise explicitly specified or limited, the first feature "on" or "under" the second feature may be directly contacted with the second feature or indirectly contacted with the second feature through an intermediate. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.

In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," "some examples," or "possible implementations" or the like, mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of an embodiment of the application. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.

As shown in fig. 1 to 5, in an embodiment of the present application, a filled battery exhaust apparatus is provided, which includes a casing 101, a preformed hole 102 is formed on the casing 101, a preformed fragment 103 is disposed in the preformed hole 102, the preformed fragment 103 is detachably and fixedly connected to an inner wall of the preformed hole 102, and a structural strength of a connection between the preformed fragment 103 and the casing 101 is smaller than a structural strength of the casing 101.

According to the filling type battery exhaust device provided by the embodiment, when the internal pressure of the battery is too high, the prefabricated fragments 103 fall off from the shell 101 at first, so that the pressure of the shell 101 is relieved, and the shell 101 is prevented from exploding.

In some embodiments, a filler 104 is disposed between the preformed fragment 103 and the inner wall of the preformed hole 102, the filler 104 is disposed around the preformed fragment 103, the filler 104 is fixedly connected to the preformed fragment 103 and the inner wall of the preformed hole 102, respectively, and the structural strength of the filler 104 is less than that of the shell 101.

Through the above embodiment of the present embodiment, the filler 104 is fixed in the gap between the prefabricated fragments 103 and the inner wall of the prefabricated hole 102 by bonding or compression-clamping, and because the structural strength of the filler 104 is smaller than that of the shell 101, the filler 104 is broken first when the internal pressure of the shell 101 is too high, so that the prefabricated fragments 103 and the shell 101 are separated, and the prefabricated hole 102 is opened to facilitate air exhaust.

In some embodiments, a mounting seat 105 is detachably and fixedly connected to the inside of the prefabricated hole 102, a mounting opening 106 is formed in the mounting seat 105, the prefabricated fragments 103 are located in the mounting opening 106, and the connection strength between the prefabricated fragments 103 and the inner wall of the mounting opening 106 is smaller than that between the mounting seat 105 and the inner wall of the prefabricated hole 102.

With the above embodiment of the present embodiment, when the air pressure inside the casing 101 is too high, the prefabricated fragments 103 are separated from the inner wall of the installation opening 106, and the prefabricated holes 102 are opened to facilitate pressure relief.

In some embodiments, mounting base 105 is threadably coupled to an inner wall of preformed hole 102.

In some embodiments, a filler 104 is disposed between the prefabricated fragment 103 and the inner wall of the installation opening 106, the filler 104 is disposed around the prefabricated fragment 103, the filler 104 is fixedly connected to the prefabricated fragment 103 and the inner wall of the installation opening 106, respectively, and the connection strength between the filler 104 and the prefabricated fragment 103 is less than the connection strength between the installation seat 105 and the inner wall of the prefabricated hole 102.

Through the above embodiment of the present embodiment, the filler 104 is fixed between the preformed fragments 103 and the installation opening 106 by compaction or adhesion, and when the air pressure inside the casing 101 is too high, the filler 104 is separated from the preformed fragments 103 at first, the preformed fragments 103 fall off from the casing 101, and the installation opening 106 is opened to exhaust air.

In some embodiments, the connection strength between filler 104 and the inner wall of mounting opening 106 is less than the connection strength between mounting seat 105 and the inner wall of preformed hole 102.

In some embodiments, the preformed fragment 103 has a plurality.

Through the above embodiment of the present embodiment, after one of the pre-fabricated fragments 103 is stuck, the other pre-fabricated fragments 103 can continue to be used normally.

In some embodiments, multiple preformed fragments 103 are located on the same side of the housing 101.

The above examples are only for explaining the present application and are not intended to limit the present application, and those skilled in the art can make modifications to the embodiments of the present application without inventive contribution as needed after reading the present specification, but are protected by patent laws within the scope of the claims of the present application.

Claims

1. The utility model provides a filled type battery exhaust apparatus, its characterized in that, includes the casing, be equipped with prefabricated hole on the casing, be equipped with prefabricated broken piece in the prefabricated hole, prefabricated broken piece with the detachable fixed connection of prefabricated downthehole wall, prefabricated broken piece with connection structural strength between the casing is less than the structural strength of casing.

2. The filled battery vent apparatus of claim 1, wherein a filler is disposed between the preformed fragment and the inner wall of the preformed hole, the filler being disposed around the preformed fragment, the filler being fixedly attached to the preformed fragment and the inner wall of the preformed hole, respectively, the filler having a structural strength less than the structural strength of the housing.

3. The exhaust device for the filled battery according to claim 1, wherein a mounting seat is fixedly connected in the prefabricated hole in a detachable mode, a mounting opening is formed in the mounting seat, the prefabricated fragments are located in the mounting opening, and the connection strength between the prefabricated fragments and the inner wall of the mounting opening is smaller than that between the mounting seat and the inner wall of the prefabricated hole.

4. The packed battery vent apparatus of claim 3, wherein the mounting seat is threadably coupled to the inner wall of the preformed hole.

5. The exhaust device for the filled battery as recited in claim 4, wherein a filler is disposed between the prefabricated fragments and the inner wall of the installation opening, the filler is disposed around the prefabricated fragments, the filler is fixedly connected to the prefabricated fragments and the inner wall of the installation opening, respectively, and the connection strength between the filler and the prefabricated fragments is smaller than that between the installation seat and the inner wall of the prefabricated hole.

6. The packed battery vent apparatus of claim 5, wherein the bond strength between the filler and the inner wall of the mounting opening is less than the bond strength between the mounting seat and the inner wall of the preformed hole.

7. The packed battery vent apparatus of any of claims 1-6, wherein the pre-fabricated fragments are in plurality.

8. The packed battery vent apparatus of claim 7, wherein a plurality of the preformed fragments are located on the same face of the housing.