CN217589073U - Battery and electronic device - Google Patents
Battery and electronic device Download PDFInfo
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- CN217589073U CN217589073U CN202221495906.1U CN202221495906U CN217589073U CN 217589073 U CN217589073 U CN 217589073U CN 202221495906 U CN202221495906 U CN 202221495906U CN 217589073 U CN217589073 U CN 217589073U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
Abstract
The application discloses battery and electronic equipment belongs to electron technical field. The battery comprises a battery core, an insulating sleeve and a protective circuit board; the battery core is provided with a cavity; the insulating sleeve is positioned in the cavity and connected with the battery cell; the protection circuit board is positioned in the insulating sleeve and connected with the insulating sleeve, and the protection circuit board is electrically connected with the battery core. By adopting the battery protection circuit board, the battery cell is arranged in the cavity of the battery cell, the battery cell can protect and absorb shock of the protection circuit board, and the safety and the shock resistance of the battery are improved.
Description
Technical Field
The application relates to the technical field of electronics, in particular to a battery and electronic equipment.
Background
Batteries are one of the most important components in mobile devices.
Generally, a battery includes a cell and a protection circuit board. A protection circuit board is generally fixed to an end of the cell and electrically connected to the cell for protecting the battery from overcharge or overdischarge.
However, the battery with the structure has weak anti-seismic performance, and when the battery violently shakes, the protection circuit board is extremely easy to collide and damage.
SUMMERY OF THE UTILITY MODEL
The embodiment of the application provides a battery and electronic equipment, which can solve the technical problems existing in the related technology, and the technical scheme of the battery and the electronic equipment is as follows:
on one hand, the embodiment of the application provides a battery, which comprises a battery cell, an insulating sleeve and a protective circuit board;
the battery core is internally provided with a cavity;
the insulating sleeve is positioned in the cavity of the battery cell and is connected with the battery cell;
the protection circuit board is located in the insulating sleeve and connected with the insulating sleeve, and the protection circuit board is electrically connected with the battery cell, the shell positive terminal and the shell negative terminal respectively.
In one possible implementation, the battery further includes a housing;
the shell comprises an insulating shell body, a shell positive terminal and a shell negative terminal, wherein the shell positive terminal and the shell negative terminal are connected with the insulating shell body and electrically connected with the protection circuit board.
In one possible implementation, the battery further includes an electrolyte;
the electrolyte is positioned between the insulating sleeve and the insulating shell body and is in contact with the battery core.
In one possible implementation manner, the insulation sleeve comprises an insulation cylinder and two insulation closing plates;
the insulating cylinder is positioned in the cavity of the battery cell and is connected with the battery cell and the protection circuit board;
the two insulating seal plates are positioned at two ends of the insulating cylinder and connected with the insulating cylinder.
In one possible implementation, the insulating sleeve has a cylindrical structure with two open ends;
the insulating shell body comprises a cylindrical side plate, a top plate and a bottom plate;
the inner wall of the cylindrical side plate is connected with the battery cell;
the top plate is positioned at one end of the cylindrical side plate and one end of the insulating sleeve and is respectively connected with one end of the cylindrical side plate and one end of the insulating sleeve, the top plate is provided with two first through holes, and the two first through holes are respectively sleeved outside the shell positive terminal and the shell negative terminal;
the bottom plate is positioned at the other end of the cylindrical side plate and the other end of the insulating sleeve and is respectively connected with the other end of the cylindrical side plate and the other end of the insulating sleeve.
In one possible implementation, the insulating sleeve has a fourth through hole and a fifth through hole;
the protection circuit board is provided with a circuit board positive terminal and a circuit board negative terminal;
the circuit board positive terminal is positioned in the fourth through hole and is in sealed connection with the hole wall of the fourth through hole, and the circuit board positive terminal is electrically connected with the shell positive terminal;
the circuit board negative terminal is located in the fifth through hole and is in sealing connection with the hole wall of the fifth through hole, and the circuit board negative terminal is electrically connected with the shell negative terminal.
In one possible implementation, the housing further includes a housing control terminal;
the insulating sleeve is provided with a sixth through hole;
the protection circuit board is provided with a circuit board control terminal;
the circuit board control terminal is located in the sixth through hole and connected with the hole wall of the sixth through hole in a sealing mode, and the circuit board control terminal is electrically connected with the shell control terminal.
In one possible implementation, the insulating sleeve has a second through hole and a third through hole;
the battery cell is provided with a battery cell positive terminal and a battery cell negative terminal;
the battery cell positive terminal is positioned in the second through hole and is hermetically connected with the hole wall of the second through hole, and the battery cell positive terminal is electrically connected with the protection circuit board;
the battery cell negative electrode terminal is located in the third through hole and is in sealing connection with the hole wall of the third through hole, and the battery cell negative electrode terminal is electrically connected with the protection circuit board.
In one possible implementation, the protection circuit board is a flexible circuit board.
In another aspect, an embodiment of the present application provides an electronic device, where the electronic device includes a battery according to any one of the above descriptions.
The technical scheme provided by the embodiment of the application at least comprises the following beneficial effects:
the embodiment of the application provides a battery, and the battery comprises a battery core, an insulating sleeve and a protective circuit board. The battery cell is provided with a cavity, the insulating sleeve is positioned in the cavity and connected with the battery cell, and the protection circuit board is positioned in the insulating sleeve and connected with the insulating sleeve. By adopting the battery, the protection circuit board is arranged in the cavity of the battery core, the battery core can play a role in protecting and damping the protection circuit board, and the safety and the anti-seismic performance of the battery are improved.
It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the application.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.
Fig. 1 is a schematic structural diagram of a battery according to an embodiment of the present application;
fig. 2 is a schematic structural diagram of a battery according to an embodiment of the present application;
FIG. 3 is a schematic structural diagram of a housing according to an embodiment of the present disclosure;
fig. 4 is a schematic cross-sectional view of a battery according to an embodiment of the present disclosure;
fig. 5 is a schematic cross-sectional view of a battery according to an embodiment of the present application;
fig. 6 is a schematic structural diagram of a battery cell shown in an embodiment of the present application;
fig. 7 is a schematic cross-sectional view of a battery according to an embodiment of the present application;
fig. 8 is a schematic cross-sectional view of a battery according to an embodiment of the present application;
fig. 9 is a schematic cross-sectional view of a battery according to an embodiment of the present application;
FIG. 10 is a schematic structural diagram of a housing according to an embodiment of the present disclosure;
fig. 11 is a schematic cross-sectional view of a battery according to an embodiment of the present application.
Description of the figures
1. A housing; 2. an electric core; 3. an insulating sleeve; 4. an electrolyte; 5. a protection circuit board;
11. an insulating housing body; 12. a case positive terminal; 13. a housing negative terminal; 14. a housing control terminal;
21. a cavity; 22. a battery cell positive terminal; 23. a cell negative terminal;
31. an insulating cylinder; 32. an insulating seal plate; 33. a second through hole; 34. a third through hole; 35. a fourth via hole; 36. a fifth through hole; 37. a sixth via hole;
51. a positive terminal of the circuit board; 52. a circuit board negative terminal; 53. a circuit board control terminal;
111. a cylindrical side plate; 112. a top plate; 113. a base plate;
1121. a first through hole.
Detailed Description
To make the objects, technical solutions and advantages of the present application more clear, the following detailed description of the embodiments of the present application will be made with reference to the accompanying drawings.
The embodiment of the present application provides a battery, as shown in fig. 1 and fig. 2, different section filling patterns are respectively given to a battery core 2, an insulating sleeve 3 and a protection circuit board 5 in fig. 2, and have been labeled in fig. 2, it is understood that the section filling patterns are only patterns corresponding to section portions of components, and corresponding section filling patterns are not shown in non-section portions of the components.
The battery comprises a battery cell 2, an insulating sleeve 3 and a protective circuit board 5, wherein the battery cell 2 is provided with a cavity 21, the insulating sleeve 3 is positioned in the cavity 21 of the battery cell 2 and is connected with the battery cell 2, the protective circuit board 5 is positioned in the insulating sleeve 3 and is connected with the insulating sleeve 3, and the protective circuit board 5 is electrically connected with the battery cell 2.
The battery cell 2 is used for realizing a charge and discharge function, the protection circuit board 5 is used for protecting the charge and discharge of the battery cell and preventing the battery cell from being overcharged or overdischarged, the insulating sleeve 3 can support the cavity 21 of the battery cell 2 on the one hand, and the battery cell 2 and the protection circuit board 5 can be separated on the other hand, so that the protection circuit board 5 cannot be in short circuit due to direct contact with the battery cell 2.
By adopting the structure, the protection circuit board 5 is arranged in the cavity 21 of the battery cell 2, and the battery cell 2 can play a role in protecting and damping the protection circuit board 5, so that the safety and the anti-seismic performance of the battery are improved.
In a possible implementation manner, the battery may further include a casing 1 for further protecting the electric core 2, the insulating sleeve 3 and the protection circuit board 5 inside the battery.
In a possible implementation manner, the battery may further include an electrolyte 4, and the electrolyte 4 may be filled inside the casing 1 and sufficiently contacts the battery core 2, so that the battery core 2 may be charged and discharged under the action of the electrolyte 4.
Next, the casing 1, the battery cell 2, the insulating sheath 3, the electrolyte 4, and the protection circuit board 5 are described:
As shown in fig. 3, the housing 1 includes an insulating housing body 11, a positive housing terminal 12 and a negative housing terminal 13, wherein the positive housing terminal 12 and the negative housing terminal 13 are connected to the insulating housing body and electrically connected to the protection circuit board 5.
The insulating housing body 11 is usually located at the outermost layer of the battery, and is used for protecting the devices inside the battery. The case positive terminal 12 and the case negative terminal 13 are also used for electrical connection with an external device, thereby realizing charge and discharge between the battery and the external device. When the battery is discharged, the current flow is: the battery cell 2 → the protection circuit board 5 → the case positive terminal 12 → the external device → the case negative terminal 13 → the protection circuit board 5 → the battery cell 2. When the battery is charged, the current flow is: the external charging device → the case negative electrode terminal 13 → the protection circuit board 5 → the cell 2 → the protection circuit board 5 → the case positive electrode terminal 12 → the external charging device.
As shown in fig. 4 (different cross-sectional filling patterns are given to the casing 1, the cell 2, the insulating sheath 3 and the electrolyte 4 in fig. 4, and have been labeled in fig. 4), the cell 2 is located in the insulating casing body 11 and is connected to the insulating casing body 11. The cell 2 has a cavity 21, as shown in fig. 1.
The structure of the battery cell 2 may be various, for example, the battery cell 2 may include a positive plate, a diaphragm, and a negative plate, where the positive plate, the diaphragm, and the negative plate are arranged in a stacked manner, and then wound into multiple circles along the length direction, and the central position is the cavity of the battery cell 2. Of course, the battery cell 2 may also have other structures, which is not limited in this embodiment of the application.
The connection mode between the battery cell 2 and the insulating housing body 1 may be various, and in a possible implementation mode, the battery cell 2 and the insulating housing body 1 may be adhered to each other, for example, the battery cell 2 may be adhered to the inner side wall of the insulating housing body 1 by using glue, so as to implement connection between the battery cell and the insulating housing body, and of course, other connection modes may also be used, which is not limited in this embodiment of the application.
Insulating sheath 3
As shown in fig. 4, the insulating sheath 3 is located in the cavity 21 of the battery cell 2 and is connected to the battery cell 2.
Wherein, insulating cover 3 can be arbitrary reasonable material that has insulating material, and it has a barrel-type structure, on the one hand, can play certain supporting role to electric core 2, and on the other hand can keep apart electric core 2 and the device in the cavity 21, plays certain guard action.
There may be multiple connection methods between the insulating sleeve 3 and the electric core 2, and in a possible implementation manner, the insulating sleeve 3 and the electric core 2 may be adhered to each other, for example, the insulating sleeve 3 and the electric core 2 are adhered to each other by using glue or the like, so as to implement connection between the two, and certainly, other connection manners may also be used, which is not limited in this embodiment of the application.
The electrolyte 4 may be a liquid electrolyte or a solid electrolyte, and is located between the insulating sleeve 3 and the insulating housing body 11 and in contact with the battery cell 2, that is, when the battery is produced, the electrolyte 4 may be filled between the insulating sleeve 3 and the insulating housing body 11 and be in full contact with the battery cell 2, as shown in fig. 4, so that the battery cell 2 can be charged and discharged under the action of the electrolyte 4.
In a possible implementation manner, if the battery cell 2 includes a positive plate, a diaphragm and a negative plate, the electrolyte 4 may be filled between the positive plate and the diaphragm and between the diaphragm and the negative plate (as shown in fig. 3) in addition to being in contact with the outer layer of the battery cell 2, so as to increase the contact area between the electrolyte 4 and the battery cell 2.
As shown in fig. 4, the protection circuit board 5 is located in the insulating sheath 3 and is connected to the insulating sheath 3. The insulating sleeve 3 can isolate the electrolyte 4 from the protective circuit board 5, thereby avoiding the situations of short circuit, corrosion and the like of the protective circuit board 5 under the action of the electrolyte 4. And, because protection circuit board 5 is located the cavity of electric core 2, is located the comparatively central position of battery to can play further guard action to protection circuit board 5, avoid protection circuit board 5 to take place to collide with, improve the security of battery.
The connection mode between the protection circuit board 5 and the insulating sleeve 3 may be various, in one possible implementation mode, the protection circuit board 5 and the insulating sleeve 3 may be adhered to each other, for example, the protection circuit board 5 may be adhered to the inner wall of the insulating sleeve 3 by using glue or the like, so as to implement connection between the protection circuit board 5 and the insulating sleeve 3, of course, other connection modes may also be used, which is not limited in this application.
The protection circuit board 5 is electrically connected to the battery cell 2, the positive terminal 12 of the casing, and the negative terminal 13 of the casing, respectively. After the positive terminal 12 and the negative terminal 13 of the casing are electrically connected to an external device, the electric core 2 can transmit current to the protection circuit board 5, the current is processed by the protection circuit board 5 to prevent overcharge and overdischarge, and then transmitted to the positive terminal 12 of the casing, and transmitted to the external device by the positive terminal 12 of the casing, and then returned to the negative terminal 13 of the casing by the external device, so that charging of the battery is realized, the current flow direction in the discharging process of the battery is opposite to the flow direction, and much description is not provided herein.
In one possible implementation, the protection circuit board 5 may be a flexible circuit board in order to facilitate the installation of the protection circuit board 5.
In the embodiment of the present application, two batteries with different structures are provided, so that the insulating sleeve 3 can isolate the electrolyte 4 from the protection circuit board 5, thereby avoiding the short circuit of the protection circuit board 5, and in the following, the two battery structures are respectively introduced in more detail:
first one
as shown in fig. 4, the insulating sheath 3 includes an insulating cylinder 31 and two insulating closing plates 32.
The insulating cylinder 31 is located in the cavity 21 of the battery cell 2, and is connected to the battery cell 2 and the protection circuit board 5. Wherein, the outer lateral wall of insulating cylinder 31 links to each other with electric core 2, and the inside wall of insulating cylinder 31 links to each other with protection circuit board 5.
Two insulating shrouding 32 are located the both ends of insulating cylinder 31, and link to each other with insulating cylinder 31, and like this, two insulating shrouding 32 can seal protection circuit board 5 in the inside of insulating cover 3, keep apart electrolyte 4 in its outside to make electrolyte 4 separate with protection circuit board 5, thereby avoided the emergence of the condition such as the short circuit that protection circuit board 5 and electrolyte 4 contact lead to.
Second kind
The electrolyte 4 and the protective circuit board 5 are isolated by the insulating shell body 11 and the insulating sleeve 3, and the corresponding structure is as follows:
as shown in fig. 5 (in fig. 5, different cross-sectional filling patterns are respectively given to the casing 1, the battery cell 2, the insulating sheath 3 and the electrolyte 4, and have been marked in fig. 5), the insulating sheath 3 has a cylindrical structure with both ends open. The insulating case body 11 includes a cylindrical side plate 111, a top plate 112, and a bottom plate 113.
The inner wall of the cylindrical side plate 111 of the insulating housing body 11 is connected to the battery cell 2, so that the battery cell 2 is fixedly connected inside the insulating housing body.
The top plate 112 of the insulating housing body 11 is located at one end of the cylindrical side plate 111 and one end of the insulating sleeve 3, and is connected to one end of the cylindrical side plate 111 and one end of the insulating sleeve 3, respectively. The bottom plate 113 of the insulating housing body 11 is located at the other end of the cylindrical side plate 111 and the other end of the insulating sleeve 3, and is connected to the other end of the cylindrical side plate 111 and the other end of the insulating sleeve 3, respectively. With such a configuration, the openings at the two ends of the insulating sleeve 3 can be sealed by the top plate 112 and the bottom plate 113 of the insulating housing body 11, so as to isolate the electrolyte 4 outside the insulating sleeve 3, thereby protecting the protection circuit board 5.
With this structure, the top plate 112 may further have two first through holes 1121, as shown in fig. 5, the two first through holes 1121 may be respectively matched with the case positive terminal 12 and the case negative terminal 13, the two first through holes 1121 are respectively sleeved outside the case positive terminal 12 and the case negative terminal 13, and the case positive terminal 12 and the case negative terminal 13 are both connected to the top plate 112. The positive terminal 12 and the negative terminal 13 of the housing are exposed through the first through hole 1121, so that the positive terminal and the negative terminal are electrically connected with a protection circuit board (5) and are also connected with an external device. As for the two first through holes 1121 respectively sleeved outside the case positive terminal 12 and the case negative terminal 13, illustratively, on the case 1, one first through hole 1121 is disposed around the region where the case positive terminal 12 is not connected to the insulating case body 11, and one first through hole 1121 is disposed around the region where the case negative terminal 13 is not connected to the insulating case body 11.
Next, an electrical connection structure in the embodiment of the present application is described:
electrical connection structure between battery cell 2 and protection circuit board 5
As shown in fig. 6, the battery cell 2 has a battery cell positive terminal 22 and a battery cell negative terminal 23, and the battery cell positive terminal 22 and the battery cell negative terminal 23 can be electrically connected to the protection circuit board 5, so as to electrically connect the battery cell 2 and the protection circuit board 5.
When the insulating sheath 3 separates the battery cell 2 from the protection circuit board 5, the structure of the insulating sheath 3 may correspond to the following: as shown in fig. 7 and 8 (different cross-sectional filling patterns are given to the battery cell 2, the insulating sheath 3, and the protective circuit board 5 in fig. 7 and 8, respectively, and have been labeled in fig. 7 and 8), the insulating sheath 3 has a second through hole 33 and a third through hole 34. The cell positive terminal 22 is located in the second through hole 33 and hermetically connected to a hole wall of the second through hole 33, and the cell negative terminal 23 is located in the third through hole 34 and hermetically connected to a hole wall of the third through hole 34.
Based on the structure of the insulating sleeve 3, when the battery cell 2 is connected to the protection circuit board 5, the battery cell positive terminal 22 may be passed through the second through hole 33, and then electrically connected to the protection circuit board 5 inside the insulating sleeve 3, and the battery cell negative terminal 23 may be passed through the third through hole 34, and then electrically connected to the protection circuit board 5 inside the insulating sleeve 3.
Various sealing structures are possible for the sealing connection between the terminal and the second and third through holes 33, 34.
In a possible implementation manner, the insulating sleeve 3 may have elasticity, and the second through hole 33 is slightly smaller than the cell positive terminal 22 in a natural state, so that when the cell positive terminal 22 is located in the second through hole 33, the insulating sleeve 3 may fasten the cell positive terminal 22, so that there is no gap between the cell positive terminal and a hole wall of the second through hole 33, thereby achieving sealing, and the sealing connection between the third through hole 34 and the cell negative terminal 23 is the same, and is not described herein again.
In a possible implementation manner, a sealing ring may be disposed between the cell positive terminal 22 and the hole wall of the second through hole 33, so as to achieve sealing therebetween, and similarly, a sealing ring may be disposed between the cell negative terminal 23 and the hole wall of the third through hole 34, so as to achieve sealing therebetween.
In one possible implementation, a sealant may be used to seal a gap between the cell positive terminal 22 and the hole wall of the second through hole 33, and similarly, a sealant may be used to seal a gap between the cell negative terminal 23 and the hole wall of the third through hole 34.
The sealing structure can also be any other reasonable structure, and the embodiment of the application is not limited.
Electrical connection structure between shell positive terminal 12, shell negative terminal 13 and protection circuit board 5
As shown in fig. 9 (fig. 9 gives the insulating sheath 3 a corresponding filling pattern of the cross section, and the mark is already given in fig. 9), the protection circuit board 5 has a positive circuit board terminal 51 and a negative circuit board terminal 52, the positive circuit board terminal 51 is electrically connected to the positive case terminal 12, and the negative circuit board terminal 52 is electrically connected to the negative case terminal 13.
When the insulating sheath 3 separates the case positive terminal 12, the case negative terminal 13 and the protection circuit board 5, the structure of the insulating sheath 3 may correspond to the following: as shown in fig. 8, the insulating sheath 3 has a fourth through hole 35 and a fifth through hole 36. The positive terminal 51 of the circuit board is located in the fourth through hole 35 and is connected with the hole wall of the fourth through hole 35 in a sealing manner. The negative terminal 52 of the circuit board is located in the fifth through hole 36 and is connected with the hole wall of the fifth through hole 36 in a sealing manner.
Based on the above-mentioned structure of the insulating sheath 3, when the positive case terminal 12 and the protection circuit board 5 are connected, the positive circuit board terminal 51 may be inserted through the fourth through hole 35 and then electrically connected to the positive case terminal 12 outside the insulating sheath 3, and the negative circuit board terminal 52 may be inserted through the fifth through hole 36 and then electrically connected to the negative case terminal 13 outside the insulating sheath 3.
For the sealing connection between the terminal and the fourth through hole 35 and the fifth through hole 36, there may be a plurality of sealing structures, for example, the sealing connections between the terminals and the second through hole 33 and the third through hole 34 are also applicable to the sealing connection between the terminal and the fourth through hole 35 and the fifth through hole 36, which is not described herein again, and of course, the sealing structure may also be any other reasonable structure, and this embodiment of the present application is not limited.
It is understood that, if the battery structure is the first structure, the insulating sleeve 3 does not separate the housing positive terminal 12 and the housing negative terminal 13 from the protection circuit board 5, and the fourth through hole 35 and the fifth through hole 36 are not required to be formed in the insulating sleeve, the housing positive terminal 12 can be directly connected to the circuit board positive terminal 51, and the housing negative terminal 13 can be directly connected to the circuit board negative terminal 52, so as to achieve electrical connection.
Current flow direction during charging and discharging of battery
When the battery is discharged, the current flow is: the cell positive terminal 22 → the protection device on the protection circuit board 5 → the circuit board positive terminal 51 → the case positive terminal 12 → the external device → the case negative terminal 13 → the circuit board negative terminal 52 → the protection device on the protection circuit board 5 → the cell negative terminal 23 → the cell positive terminal 22.
When the battery is charged, the current flow is: external charging device → case negative terminal 13 → circuit board negative terminal 52 → protection device on protection circuit board 5 → cell negative terminal 23 → cell positive terminal 22 → protection device on protection circuit board 5 → circuit board positive terminal 51 → case positive terminal 12 → external charging device.
When the battery is located in the electronic device and needs to be controlled by the control device of the electronic device, the battery can be in the following structure;
as shown in fig. 10 and fig. 11 (in fig. 11, corresponding cross-sectional filling patterns are given to the insulating sleeve 3, and are labeled in fig. 11), the housing 1 further includes a housing control terminal 14, the protection circuit board 5 has a circuit board control terminal 53, the housing control terminal 14 is electrically connected to the circuit board control terminal 53, and an external control device can be electrically connected to the housing control terminal 14, so that the external control device can control the protection circuit board 5.
When the insulating sheath 3 separates the housing control terminal 14 from the protection circuit board 5, the structure of the insulating sheath 3 may correspond to the following: as shown in fig. 11, the insulating sleeve 3 has a sixth through hole 37, and the circuit board control terminal 53 is located in the sixth through hole 37 and is connected with the hole wall of the sixth through hole 37 in a sealing manner.
Based on the above-mentioned structure of the insulating sheath 3, when connecting the housing control terminal 14 and the circuit board control terminal 53, the circuit board control terminal 53 can be passed through the sixth through hole 37 and then electrically connected with the housing control terminal 14 outside the insulating sheath 3.
For the sealing connection between the circuit board control terminal 53 and the sixth through hole 37, there may be a plurality of sealing structures, for example, the sealing connections between the terminals and the second through hole 33 and the third through hole 34 are also applicable to the sealing connection between the circuit board control terminal 53 and the sixth through hole 37, which is not described herein again, and of course, the sealing structure may be any other reasonable structure, which is not limited in this embodiment of the application.
It is understood that if the battery structure is the first structure mentioned above, and the insulating sleeve 3 does not separate the casing control terminal 14 from the protection circuit board 5, the casing control terminal 14 and the circuit board control terminal 53 can be directly connected to realize the electrical connection without providing the sixth through hole 37 on the insulating sleeve.
The embodiment of the application also provides electronic equipment which comprises any one of the batteries. The electronic device may further include a control device (i.e., the external control device described above), which may be electrically connected to the case control terminal 14 of the battery, thereby controlling the battery.
The technical scheme provided by the embodiment of the application at least comprises the following beneficial effects:
the embodiment of the application provides a battery, and the battery comprises a battery core 2, an insulating sleeve 3 and a protective circuit board 5. The battery cell 2 is provided with a cavity 21, the insulating sleeve 3 is positioned in the cavity 21 and connected with the battery cell 2, and the protection circuit board 5 is positioned in the insulating sleeve 3 and connected with the insulating sleeve 3. By adopting the battery protection device, the protection circuit board 5 is arranged in the cavity 21 of the battery core 2, the battery core 2 can protect and absorb shock of the protection circuit board 5, and the safety and the shock resistance of the battery are improved.
The above description is only exemplary of the present application and should not be taken as limiting, as any modification, equivalent replacement, or improvement made within the spirit and principle of the present application should be included in the protection scope of the present application.
Claims (10)
1. A battery, characterized in that it comprises a cell (2), an insulating sleeve (3) and a protective circuit board (5);
the battery core (2) is provided with a cavity (21);
the insulating sleeve (3) is positioned in the cavity (21) of the battery core (2) and is connected with the battery core (2);
the protection circuit board (5) is located in the insulating sleeve (3) and connected with the insulating sleeve (3), and the protection circuit board (5) is electrically connected with the battery core (2).
2. The battery according to claim 1, characterized in that the battery further comprises a case (1);
the shell (1) comprises an insulating shell body (11), a shell positive terminal (12) and a shell negative terminal (13), wherein the shell positive terminal (12) and the shell negative terminal (13) are connected with the insulating shell body (11) and electrically connected with the protective circuit board (5).
3. The battery according to claim 2, further comprising an electrolyte (4);
the electrolyte (4) is located between the insulating sleeve (3) and the insulating shell body (11) and is in contact with the battery cell (2).
4. The battery according to claim 3, wherein the insulating sleeve (3) comprises an insulating cylinder (31) and two insulating closing plates (32);
the insulating cylinder (31) is positioned in the cavity (21) of the battery cell (2) and is connected with the battery cell (2) and the protective circuit board (5);
the two insulation sealing plates (32) are positioned at two ends of the insulation cylinder (31) and connected with the insulation cylinder (31).
5. The battery according to claim 3, characterized in that the insulating sheath (3) has a cylindrical structure open at both ends;
the insulating shell body (11) comprises a cylindrical side plate (111), a top plate (112) and a bottom plate (113);
the inner wall of the cylindrical side plate (111) is connected with the battery cell (2);
the top plate (112) is located at one end of the cylindrical side plate (111) and one end of the insulating sleeve (3) and is respectively connected with one end of the cylindrical side plate (111) and one end of the insulating sleeve (3), the top plate (112) is provided with two first through holes (1121), and the two first through holes (1121) are respectively sleeved outside the shell positive terminal (12) and the shell negative terminal (13);
the bottom plate (113) is located at the other end of the cylindrical side plate (111) and the other end of the insulating sleeve (3) and is connected with the other end of the cylindrical side plate (111) and the other end of the insulating sleeve (3) respectively.
6. The battery according to claim 2, characterized in that the insulating sheath (3) has a fourth through hole (35) and a fifth through hole (36);
the protection circuit board (5) is provided with a circuit board positive terminal (51) and a circuit board negative terminal (52);
the circuit board positive terminal (51) is positioned in the fourth through hole (35) and is in sealed connection with the hole wall of the fourth through hole (35), and the circuit board positive terminal (51) is electrically connected with the shell positive terminal (12);
the circuit board negative terminal (52) is located in the fifth through hole (36) and is in sealing connection with the hole wall of the fifth through hole (36), and the circuit board negative terminal (52) is electrically connected with the shell negative terminal (13).
7. The battery according to claim 2, characterized in that the case (1) further comprises a case control terminal (14);
the insulating sleeve (3) is provided with a sixth through hole (37);
the protection circuit board (5) has a circuit board control terminal (53);
the circuit board control terminal (53) is located in the sixth through hole (37) and is in sealing connection with the hole wall of the sixth through hole (37), and the circuit board control terminal (53) is electrically connected with the shell control terminal (14).
8. The battery according to claim 1, characterized in that the insulating sheath (3) has a second through hole (33) and a third through hole (34);
the battery cell (2) is provided with a battery cell positive terminal (22) and a battery cell negative terminal (23);
the battery cell positive terminal (22) is located in the second through hole (33) and is in sealed connection with the hole wall of the second through hole (33), and the battery cell positive terminal (22) is electrically connected with the protection circuit board (5);
the battery cell negative electrode terminal (23) is located in the third through hole (34) and is in sealed connection with the hole wall of the third through hole (34), and the battery cell negative electrode terminal (23) is electrically connected with the protection circuit board (5).
9. The battery according to claim 1, characterized in that the protection circuit board (5) is a flexible circuit board.
10. An electronic device, characterized in that the electronic device comprises a battery according to any of claims 1-9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221495906.1U CN217589073U (en) | 2022-06-14 | 2022-06-14 | Battery and electronic device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221495906.1U CN217589073U (en) | 2022-06-14 | 2022-06-14 | Battery and electronic device |
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| Publication Number | Publication Date |
|---|---|
| CN217589073U true CN217589073U (en) | 2022-10-14 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221495906.1U Active CN217589073U (en) | 2022-06-14 | 2022-06-14 | Battery and electronic device |
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| Country | Link |
|---|---|
| CN (1) | CN217589073U (en) |
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