CN217544747U - Button cell with safety structure - Google Patents
Button cell with safety structure Download PDFInfo
- Publication number
- CN217544747U CN217544747U CN202220273676.8U CN202220273676U CN217544747U CN 217544747 U CN217544747 U CN 217544747U CN 202220273676 U CN202220273676 U CN 202220273676U CN 217544747 U CN217544747 U CN 217544747U
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- China
- Prior art keywords
- cover casing
- lower cover
- upper cover
- button cell
- slit groove
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Abstract
The utility model discloses a button cell with safety structure, the utility model relates to a steel-shell button lithium ion battery technical field, including lower cover casing and upper cover casing, the upper cover casing is pegged graft in the inside of lower cover casing, be provided with the sealing washer between lower cover casing and the upper cover casing, and the upside of lower cover casing has seted up the slot groove for the gas that produces when the electric core of discharge battery became invalid. This button cell with safety structure, through the lower cover casing that has the safety slit groove receive the minor diameter through the mechanical seal mode, the sealing washer between straining upper cover casing and the lower cover casing, under the electric core inefficacy circumstances, slit groove department splits more easily than other places, inside atmospheric pressure can be followed slit groove and split the department and discharge to the battery outside to reach the safety protection effect, the safety protection line of a joint is processed easily, the cost of realization is low, the technical degree of difficulty of realization is little.
Description
Technical Field
The utility model relates to a box hat knot formula lithium ion battery technical field specifically is a button cell with safety structure.
Background
Lithium ion batteries are one type of rechargeable batteries, which are commonly used in portable electronic devices and electric automobiles, and are becoming increasingly popular in military and aerospace applications, and steel-can button lithium ion batteries are one type of lithium ion batteries.
However, when the existing steel-shell button lithium ion battery is used, if the battery fails, air pressure is generated inside the battery shell, so that the explosion phenomenon is easy to occur, and certain potential safety hazards are caused.
SUMMERY OF THE UTILITY MODEL
Not enough to prior art, the utility model provides a button cell with safety structure has solved present box hat button lithium ion battery in use, if when the battery became invalid, its battery case inside can produce atmospheric pressure to the phenomenon of exploding easily has the problem of certain potential safety hazard.
In order to achieve the above purpose, the utility model discloses a following technical scheme realizes: the utility model provides a button cell with safety structure, includes lower cover casing and upper cover casing, the upper cover casing is pegged graft in the inside of lower cover casing, be provided with the sealing washer between lower cover casing and the upper cover casing, and the upside of lower cover casing has seted up the slot groove for the gaseous of production when the electric core of discharge battery became invalid.
Further, the width of the slit groove is set to be 0.1-0.5 mm, and the length of the slit groove is set to be 0.8-2 mm.
Further, the number of the slit grooves is at least 1 according to the type of the battery.
Furthermore, the sealing ring wraps the outer side of the upper cover shell, and the outer side of the sealing ring is in contact with the inner wall of the lower cover shell, so that a sealing effect is achieved.
Further, the sealing ring is a rubber component.
Further, the shape of the slit groove is one of a linear groove, a V-shaped groove and a U-shaped groove.
Advantageous effects
The utility model provides a have safety structure button cell, compare with prior art and possess following beneficial effect:
1. this buckle type battery with safety structure, through the lower cover casing that has safe slit groove receive the minor diameter through the mechanical seal mode, the straining upper cover casing and the sealing washer between the lower cover casing, under the electric core inefficacy circumstances, slit groove department splits more easily than other places, and inside atmospheric pressure can be followed slit groove and split the department and discharge to the battery outside to reach the safety protection effect.
2. This have safety structure button cell, the easy processing of safety protection line seam, the cost of realization is low, and the technical degree of difficulty of realization is little, and safety arrangement can be carved with one or many safety grooves on the box hat border according to the big or small needs of relief pressure and reach under the different pressure circumstances, open the pressure release.
Drawings
Fig. 1 is a schematic structural view of the present invention;
FIG. 2 is a perspective view of the lower cover casing structure of the present invention;
FIG. 3 is a plan view of the lower cover casing structure of the present invention;
fig. 4 is a schematic structural diagram of the utility model after being opened safely.
In the figure: 1. a lower cover housing; 2. an upper cover housing; 3. a seal ring; 4. a slit groove.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Referring to fig. 1-4, the present invention provides three technical solutions:
example one
The utility model provides a button cell with safety structure, includes lower cover casing 1 and upper cover casing 2, and upper cover casing 2 pegs graft in the inside of lower cover casing 1, is provided with sealing washer 3 between lower cover casing 1 and the upper cover casing 2, and the upside of lower cover casing 1 has seted up slit groove 4 for the gaseous of production when the electric core of discharge battery became invalid.
In the embodiment of the utility model provides an in, the width of slit groove 4 sets up to 0.1mm, and the length of slit groove 4 sets up to 0.8mm.
The embodiment of the utility model provides an in, slit groove 4 is that quantity sets up quantity according to the model of battery and is 1 at least.
The embodiment of the utility model provides an in, sealing washer 3 wraps up in the outside of upper cover casing 2, and the outside of sealing washer 3 and lower cover casing 1's inner wall contact, plays sealed effect, and sealing washer 3 plays sealed effect.
In the embodiment of the present invention, the sealing ring 3 is a rubber component.
In the embodiment of the present invention, the slit groove 4 is a linear groove.
Example two
The utility model provides a button cell with safety structure, includes lower cover casing 1 and upper cover casing 2, and upper cover casing 2 pegs graft in the inside of lower cover casing 1, is provided with sealing washer 3 between lower cover casing 1 and the upper cover casing 2, and the upside of lower cover casing 1 has seted up slit groove 4 for the gaseous of production when the electric core of discharge battery became invalid.
In the embodiment of the utility model, the width of slit groove 4 sets up to 0.5mm, and slit groove 4's length sets up to 2mm.
The embodiment of the utility model provides an in, slit groove 4 is that quantity sets up quantity according to the model of battery and is 1 at least.
The embodiment of the utility model provides an in, sealing washer 3 wraps up in the outside of upper cover casing 2, and the outside of sealing washer 3 and the inner wall contact of lower cover casing 1 play sealed effect, and sealing washer 3 plays sealed effect.
In the embodiment of the present invention, the sealing ring 3 is a rubber component.
In the embodiment of the present invention, the slit groove 4 is a V-shaped groove.
EXAMPLE III
The utility model provides a button cell with safety structure, includes lower cover casing 1 and upper cover casing 2, and upper cover casing 2 pegs graft in the inside of lower cover casing 1, is provided with sealing washer 3 between lower cover casing 1 and the upper cover casing 2, and the upside of lower cover casing 1 has seted up slit groove 4 for the gaseous of production when the electric core of discharge battery became invalid.
In the embodiment of the utility model provides an in, the width of slit groove 4 sets up to 0.3mm, and the length of slit groove 4 sets up to 1.4mm.
The embodiment of the utility model provides an in, slit groove 4 is that quantity sets up quantity according to the model of battery and is 1 at least.
The embodiment of the utility model provides an in, sealing washer 3 wraps up in the outside of upper cover casing 2, and the outside of sealing washer 3 and the inner wall contact of lower cover casing 1 play sealed effect, and sealing washer 3 plays sealed effect.
In the embodiment of the present invention, the sealing ring 3 is a rubber component.
In the embodiment of the present invention, the shape of the slit groove 4 is one of the U-shaped grooves.
And those not described in detail in this specification are well within the skill of the art.
The working principle is as follows: through having safe slit groove 4's lower cover casing 1 and receiving the minor diameter through the mechanical seal mode, the sealing washer 3 between straining upper cover casing 2 and the lower cover casing 1, under the electric core inefficacy circumstances, slit groove 4 department splits more easily than other places, and inside atmospheric pressure can be followed slit groove 4 and split the department and discharge to the battery outside to reach the safety protection effect.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
Claims (6)
1. The utility model provides a button cell with safety structure, includes lower cover casing (1) and upper cover casing (2), upper cover casing (2) are pegged graft in the inside of lower cover casing (1), its characterized in that: a sealing ring (3) is arranged between the lower cover shell (1) and the upper cover shell (2), and a slit groove (4) is formed in the upper side of the lower cover shell (1) and used for discharging gas generated when a battery core of the battery fails.
2. The button cell with safety structure according to claim 1, wherein: the width of the slit groove (4) is set to be 0.1-0.5 mm, and the length of the slit groove (4) is set to be 0.8-2 mm.
3. Button cell with safety structure according to claim 1 or 2, characterized in that: the number of the slit grooves (4) is at least 1 according to the type of the battery.
4. The button cell with safety structure as defined in claim 1, wherein: the sealing ring (3) wraps the outer side of the upper cover shell (2), and the outer side of the sealing ring (3) is in contact with the inner wall of the lower cover shell (1) to play a role in sealing.
5. The button cell with safety structure according to claim 4, wherein: the sealing ring (3) is a rubber component.
6. The button cell with safety structure according to claim 1, wherein: the shape of the slit groove (4) is one of a linear groove, a V-shaped groove and a U-shaped groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220273676.8U CN217544747U (en) | 2022-02-10 | 2022-02-10 | Button cell with safety structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220273676.8U CN217544747U (en) | 2022-02-10 | 2022-02-10 | Button cell with safety structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217544747U true CN217544747U (en) | 2022-10-04 |
Family
ID=83425339
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220273676.8U Active CN217544747U (en) | 2022-02-10 | 2022-02-10 | Button cell with safety structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217544747U (en) |
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2022
- 2022-02-10 CN CN202220273676.8U patent/CN217544747U/en active Active
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