CN216904378U - Battery pack and charging seat - Google Patents
Battery pack and charging seat Download PDFInfo
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- CN216904378U CN216904378U CN202220575521.XU CN202220575521U CN216904378U CN 216904378 U CN216904378 U CN 216904378U CN 202220575521 U CN202220575521 U CN 202220575521U CN 216904378 U CN216904378 U CN 216904378U
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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
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Abstract
The utility model discloses a battery pack and a charging seat, relating to the field of charging equipment; the battery component comprises a shell, a battery, a first wireless charging PCBA component and a power receiving coil composite component; the battery is arranged in the shell; the first wireless charging PCBA is arranged in the shell and electrically connected with the battery; the power receiving coil composite part is formed by connecting a coil and a soft magnetic part, is arranged in the shell, is connected with the first wireless charging PCBA part, is arranged around the periphery or the end part of the battery and is used for being matched with a charging seat to charge the battery. The power receiving coil composite piece of the battery component is a composite piece formed by compounding a coil and a soft magnetic piece, and the soft magnetic piece can restrict the direction and the trend of magnetic force lines of a magnetic field so as to limit a charging area and a charging range, so that the battery can be charged in a specific area, the interference of a metal structure of the battery and an alternating magnetic field is reduced, the eddy current effect is reduced, the damage can be reduced, the charging efficiency is improved, and the potential safety hazard is reduced.
Description
Technical Field
The utility model relates to the field of charging equipment, in particular to a battery pack and a charging seat.
Background
A wireless charging method for a rechargeable battery generally includes a power transmission coil and a power receiving coil. The power transmission coil is usually integrated in an external charging base. The power receiving coil is typically integrated in a battery, to which the power receiving coil is connected. When charging, the power transmitting coil and the power receiving coil are placed opposite to each other. The power transmission coil is electrified with alternating current with a certain frequency, and induction current is generated in the power receiving coil through electromagnetic induction, so that energy is transferred from the charging seat to the battery.
However, in the prior art, the magnetic lines of force of the magnetic field generated by the coil are distributed in a quasi-spherical shape, and the metal structure (PCBA board, metal shell, etc.) of the battery and/or the charging stand is easy to generate an eddy current effect in the spherical magnetic field, so that the metal structure generates heat, potential safety hazards exist, and even the energy of the magnetic field is absorbed by the metal, so that the charging efficiency is reduced.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a battery pack and a charging seat which are low in potential safety hazard and high in charging efficiency.
The embodiment of the utility model is realized by the following steps:
in a first aspect, the present invention provides a battery assembly comprising:
a housing;
a battery disposed within the housing;
the first wireless PCBA piece is arranged in the shell and is electrically connected with the battery;
the power receiving coil composite part is formed by connecting the coil and the soft magnetic part, is arranged in the shell, is connected with the first wireless charging PCBA part, is arranged around the periphery or the end part of the battery and is used for being matched with a charging seat to charge the battery.
In an alternative embodiment, the power receiving coil composite includes a first annular coil cylinder and a first annular soft magnetic member disposed around an inner or outer circumference of the first annular coil cylinder, the first annular coil cylinder and the first annular soft magnetic member being circumferentially arranged around a circumference of the battery.
In an alternative embodiment, the power receiving coil composite includes a first planar coil and a first planar soft magnetic member disposed on an end surface of the first planar coil, and the first planar coil and the first planar soft magnetic member are disposed on an end portion of the battery.
In an alternative embodiment, the housing includes a cylindrical body disposed around a circumference of the battery, a positive end shell disposed adjacent to and electrically connected with the positive end of the battery through a positive contact, and a negative end shell disposed adjacent to and electrically connected with the negative end of the battery through a negative contact.
In an alternative embodiment, the power receiving coil composite is disposed adjacent to the negative end housing, and the positive end housing is provided with a charging terminal for externally connecting a charging wire to charge the battery.
In a second aspect, the present invention provides a charging stand for charging a battery assembly of any one of the preceding embodiments, the charging stand comprising:
a housing;
the second wireless charging PCBA piece is arranged in the shell;
a power transmission coil composite part arranged in the shell and connected with the second wireless charging PCBA part, wherein the power transmission coil composite part is a composite part formed by connecting a coil and a soft magnetic part, and the power transmission coil composite part is used for being opposite to the power receiving coil composite part so as to charge a battery when an external power supply is connected
In an alternative embodiment, the power transmission coil composite includes a second annular bobbin and a second annular soft magnetic element disposed around an inner or outer periphery of the second annular bobbin.
In an alternative embodiment, the feeding coil composite comprises a second planar coil and a second planar soft magnetic element disposed at an end face of the second planar coil.
In an alternative embodiment, the housing has an inner recess, the power transmission coil composite is disposed around an outer periphery side and an outer end portion of the inner recess, and the inner periphery side and the inner end portion of the inner recess together enclose a recess cavity for the power reception coil composite to extend into.
In an alternative embodiment, the housing comprises an upper shell and a lower shell;
the circumferential direction of the upper shell is provided with a buckling groove, and the circumferential edge of the lower shell is buckled with the buckling groove; or, the circumferential direction of the lower shell is provided with a buckling groove, and the circumferential edge of the upper shell is buckled with the buckling groove.
The embodiment of the utility model has at least the following advantages or beneficial effects:
embodiments of the present invention provide a battery assembly comprising a housing, a battery, a first wireless charging PCBA component, and a power receiving coil composite; the battery is arranged in the shell; the first wireless charging PCBA is arranged in the shell and electrically connected with the battery; the power receiving coil composite part is formed by connecting a coil and a soft magnetic part, is arranged in the shell, is connected with the first wireless charging PCBA part, is arranged around the periphery or the end part of the battery and is used for being matched with a charging seat to charge the battery. The power receiving coil composite piece of the battery component is a composite piece formed by compounding a coil and a soft magnetic piece, and the soft magnetic piece can restrict the direction and the trend of magnetic force lines of a magnetic field so as to limit a charging area and a charging range, so that the battery can be charged in a specific area, the interference of a metal structure of the battery and an alternating magnetic field is reduced, the eddy current effect is reduced, the damage can be reduced, the charging efficiency is improved, and the potential safety hazard is reduced.
The embodiment of the utility model also provides a charging seat matched with the battery component for use. The wireless charging device comprises a shell, a second wireless charging PCBA piece and a power transmission coil composite piece; the second wireless charging PCBA is arranged in the shell; the power transmission coil composite piece is arranged in the shell and connected with the second wireless charging PCBA piece, the power transmission coil composite piece is a composite piece formed by connecting a coil and a soft magnetic piece, and the power transmission coil composite piece is used for being externally connected with a power supply to charge a battery. The charging seat is provided with the power transmission coil composite piece as the composite piece of the coil and the soft magnetic piece, and can limit the charging area through the soft magnetic piece, so that the eddy current effect is reduced, and the charging efficiency and the charging operation safety are ensured.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.
Fig. 1 is a schematic structural diagram of a battery assembly and a charging seat before being engaged with each other according to an embodiment of the present invention;
fig. 2 is a schematic structural diagram of a battery assembly and a charging seat in cooperation according to an embodiment of the present invention;
fig. 3 is a schematic cross-sectional structure diagram of a battery assembly and a charging seat according to an embodiment of the present invention;
fig. 4 is an exploded view of a battery assembly and a charging base according to an embodiment of the utility model.
100-battery assembly; 101-a housing; 103-a battery; 105-a first wireless charger PCBA piece; 107-power receiving coil composite; 109-cylinder body; 111-positive end housing; 113-negative end casing; 115-a first toroidal coil cylinder; 117-a first annular soft magnetic member; 119-a first planar coil; 121-a first planar softmagnetic; 123-a positive contact; 125-negative contact; 126-an opening; 127-a charging terminal; 129-positive PCBA component; 131-a cover body; 200-a charging seat; 201-a housing; 203-upper shell; 205-a lower shell; 207-a second wireless charging PCBA piece; 209-feeding coil composite; 211-a second toroidal coil bobbin; 213-a second annular soft magnetic member; 215-a second planar coil; 217-a second planar softmagnetic; 219-an inner recess; 221-a recessed cavity; 223-snap groove.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. The components of embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the utility model, as claimed, but is merely representative of selected embodiments of the utility model. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings or orientations or positional relationships that the products of the present invention are conventionally placed in use, and are only for convenience of describing the present invention and simplifying the description, but do not indicate or imply that the device or element to which the description refers must have a specific orientation, be constructed in a specific orientation, and be operated, and thus should not be construed as limiting the present invention. Furthermore, the terms "first," "second," "third," and the like are used solely to distinguish one from another and are not to be construed as indicating or implying relative importance.
Furthermore, the terms "horizontal", "vertical" and the like do not imply that the components are required to be absolutely horizontal or pendant, but rather may be slightly inclined. For example, "horizontal" merely means that the direction is more horizontal than "vertical" and does not mean that the structure must be perfectly horizontal, but may be slightly inclined.
In the description of the present invention, it should also be noted that, unless otherwise explicitly stated or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
In the related art, a wireless charging method for a rechargeable battery generally includes a power transmission coil and a power receiving coil. The power transmission coil is usually integrated in an external charging base. The power receiving coil is typically integrated in a battery, to which the power receiving coil is connected. When charging, the power transmitting coil and the power receiving coil are placed opposite to each other. The power transmission coil is electrified with alternating current with a certain frequency, and induction current is generated in the power receiving coil through electromagnetic induction, so that energy is transferred from the charging seat to the battery. However, since the magnetic lines of force of the magnetic field generated by the coil are distributed in a quasi-spherical shape, the metal structure (PCBA board, metal case, etc.) of the battery and/or the charging stand is liable to generate an eddy current effect in the spherical magnetic field, which generates eddy current, so that the metal structure generates heat, which may cause a safety hazard, and even may cause the energy of the magnetic field to be absorbed by the metal, which may reduce the charging efficiency.
In view of this, the present embodiment provides a battery assembly and a charging seat having a soft magnetic member, which can limit a charging area through the setting of the soft magnetic member, so as to reduce interference between a metal structure of a battery and an alternating magnetic field, and reduce an eddy current effect, thereby reducing damage, improving charging efficiency, and reducing potential safety hazards. The structure of the battery pack and the charging stand will be described in detail below.
Fig. 1 is a schematic structural diagram of a battery assembly 100 provided in this embodiment before being engaged with a charging stand 200; fig. 2 is a schematic structural diagram of the battery assembly 100 and the charging stand 200 provided in this embodiment after being engaged; fig. 3 is a schematic cross-sectional view illustrating the battery assembly 100 and the charging stand 200 of the present embodiment after being engaged with each other; fig. 4 is an exploded view of the battery assembly 100 and the charging stand 200 according to the present embodiment. Referring to fig. 1 to 4, the present embodiment provides a battery assembly 100 and a charging stand 200 adapted to the battery assembly 100.
In detail, the battery assembly 100 includes a housing 101, a battery 103, a first wireless battery PCBA piece 105, and a power receiving coil composite 107. The case 101 has a cylindrical structure, and the battery 103 is also provided in the case 101 in a corresponding cylindrical shape. The first wireless charging pcb a piece 105 is disposed within the housing 101 and may be connected to the housing 101 by fasteners, and the first wireless charging pcb a piece 105 is electrically connected to the battery 103. The power receiving coil composite 107 is a composite formed by connecting a coil and a soft magnetic member, and the power receiving coil composite 107 is disposed in the case 101, connected to the first wireless rechargeable PCBA member 105, and disposed around the periphery or end of the battery 103. The first wireless charging PCBA component 105 and the power receiving coil composite 107 are configured to cooperate with the charging cradle 200 to generate an induced current when the charging cradle 200 is energized, thereby facilitating the charging of the battery 103.
This battery pack 100's receiving coil composite 107 is the composite that coil and soft magnetic component complex formed, soft magnetic component is the sheet structure spare that magnetic material of a high magnetic conductivity made forms, the magnetic conductivity of soft magnetic component is higher than the air far away, it can retrain the direction and the trend of magnetic line of force of magnetic field, with the restriction district and the scope of charging, make battery 103 can charge in specific area, reduce battery 103's metallic structure and alternating magnetic field's interference, reduce the eddy current effect, thereby can reduce the damage, improve charge efficiency, reduce the potential safety hazard.
Correspondingly, the charging stand 200 used with the battery assembly 100 specifically includes a housing 201, a second wireless charging pcb 207, and a power transmission coil composite 209. Wherein, the housing 201 is a cuboid, a cube or other square structure. The second wireless charging PCBA component 207 is disposed within the housing 201 via fasteners and is connectable to an external power source to enable current input. A power transmission coil composite 209 is disposed within the housing 201 and connected to the second wireless charging PCBA component 207, the power transmission coil composite 209 being a composite of a coil and a soft magnetic component, and being capable of opposing the power receiving coil composite 107 so as to be able to charge the battery 103 when powered externally. That is, through the arrangement of the second wireless charging PCBA 207 and the power transmission coil composite 209, the charging stand 200 can be powered on with alternating current when being connected to an external power source, and the power reception coil composite 107 can generate induced current to complete the charging operation.
In the present embodiment, the power receiving coil assembly 107 of the charging stand 200, which is matched with the battery assembly 100, is configured as a coil and soft magnetic assembly, and the charging area can also be limited by the soft magnetic assembly, so that the eddy current effect can be further reduced, and the charging efficiency and the charging operation safety can be ensured.
Referring to fig. 1 to 4 again, in the present embodiment, the power receiving coil composite 107 includes a first annular bobbin 115 and a first annular soft magnetic element 117 disposed around an inner circumference or an outer circumference of the first annular bobbin 115. The first annular bobbin 115 is a tubular structure and is formed by spirally winding an electromagnetic coil. The first annular soft magnetic element 117 is specifically wound around the inner periphery of the first annular coil cylinder 115, and has a cylindrical structure. First annular coil section of thick bamboo 115 and first annular soft magnetic member 117 encircle the circumference of battery 103 and establish to make battery 103 when charging, can inject the charging area through first annular soft magnetic member 117, make the alternating magnetic field that produces can not wirelessly fill PCBA spare 207 with the second of charging the box the inside, metal part and battery 103 the inside first wirelessly fill PCBA spare 105, metal part metal structure such as take place eddy current effect, thereby can reduce the energy loss in the charging process, and then can improve charge efficiency effectively, reduce the potential safety hazard.
Optionally, the power receiving coil composite 107 further includes a first planar coil 119 and a first planar soft magnetic member 121 disposed on an end surface of the first planar coil 119. The first planar coil 119 is a planar structure formed by spirally winding an electromagnetic coil in a plane. The first planar magnetic soft-magnetic member 121 is a planar structure disposed on an end surface of the first planar coil 119 near one end of the battery 103. The first planar coil 119 and the first planar soft magnetic member 121 are disposed at an end of the battery 103 and at one end of the cylindrical structure formed by the first annular coil cylinder 115 and the first annular soft magnetic member 117.
On one hand, through the arrangement of the first planar coil 119 and the first planar soft magnetic member 121, the magnetic force lines of the magnetic field can be constrained by using the characteristics of the first planar soft magnetic member 121 to limit the charging area, so that the charging of the battery 103 is further limited in the specific area, the influence of a metal structure outside the specific area on the alternating magnetic field is reduced, the energy consumption is reduced, the charging efficiency is further improved, and the potential safety hazard is reduced; on the other hand, when power is supplied, electrons can be transmitted between the first toroidal bobbin 115 and the first toroidal soft magnetic member 117 and the second toroidal coil conductor and the second toroidal soft magnetic member 213, and can also be transmitted between the first planar coil 119 and the first planar soft magnetic member 121 and the second toroidal coil conductor and the second toroidal soft magnetic member 213, so that the charging capability can be increased, and the charging efficiency can be further improved.
Correspondingly, referring to fig. 1 to 4 again, in the present embodiment, the power transmission coil composite 209 of the charging stand 200 specifically includes a second annular coil cylinder 211 and a second annular soft magnetic element 213 disposed around an inner circumference or an outer circumference of the second annular coil cylinder 211. The tubular structure formed by the second annular coil cylinder 211 and the second annular soft magnetic element 213 can be wound outside the tubular structure formed by the first annular coil cylinder 115 and the first annular soft magnetic element 117, so that the first annular coil cylinder 115 can be opposite to the first annular coil cylinder 115, the second annular soft magnetic element 213 can be opposite to the first annular soft magnetic element 117, and the first annular soft magnetic element 117 and the second annular soft magnetic element 213 can clearly define the charging area of the battery 103, thereby ensuring the charging efficiency and reducing the potential safety hazard.
Meanwhile, the power transmission coil composite 209 includes a second planar coil 215 and a second planar soft magnetic member 217 disposed at an end surface of the second planar coil 215. The second planar coil 215 is a planar structure formed by spirally winding the electromagnetic coil in a plane. The second planar soft magnetic element 217 is a planar structure disposed on an end surface of the second planar coil 215 away from the battery 103. The second planar coil 215 and the second planar soft magnetic element 217 are disposed at one end of the cylindrical structure formed by the second annular bobbin 211 and the second annular soft magnetic element 213.
On one hand, through the arrangement of the second planar coil 215 and the second planar soft magnetic member 217, the magnetic force lines of the magnetic field can be constrained by using the characteristics of the second planar soft magnetic member 217 to limit the charging area, so that the charging of the battery 103 is further limited in the specific area, the influence of a metal structure outside the specific area on the alternating magnetic field is reduced, the energy consumption is reduced, the charging efficiency is further improved, and the potential safety hazard is reduced; on the other hand, when the power is supplied, electrons can be transmitted between the first annular bobbin 115 and the first annular soft magnetic member 117 and the second planar coil 215 and the second planar soft magnetic member 217, and also between the first planar coil 119 and the first planar soft magnetic member 121 and the second planar coil 215 and the second planar soft magnetic member 217, so that the charging capability of the battery 103 can be improved, and the charging efficiency can be further improved.
Referring to fig. 3 and 4 again, in the present embodiment, the housing 201 includes an upper housing 203 and a lower housing 205 that are snap-fit to each other, the upper housing 203 is a semi-closed rectangular parallelepiped structure, a snap-fit groove 223 is formed in the circumferential direction of the lower housing 205, and an edge of an end portion of the upper housing 203 is snap-fit to the snap-fit groove 223 to close an open position of the upper housing 203, so as to protect the second wireless charging PCBA component 207 and the power transmission coil composite component 209 located in the housing 201. Meanwhile, since the upper case 203 and the lower case 205 are snap-fit through the snap groove 223, the quick detachment and installation of the upper case 203 and the lower case 205 can be realized, and the detachment and installation efficiency can be effectively improved. Of course, in other embodiments, the fastening groove 223 may be formed in the circumferential direction of the lower case 205, so that the circumferential direction of the lower case 205 can be fastened with the fastening groove 223, which is not limited in this embodiment.
Alternatively, in order that the power transmission coil composite 209 can be opposed to the power reception coil composite 107, in the present embodiment, the top of the upper case 203 has an inner concave portion 219 that is concave toward the lower case 205, the second annular bobbin 211 and the second annular soft magnetic piece 213 of the power transmission coil composite 209 can be disposed around the outer peripheral side of the inner concave portion 219, and the second planar coil 215 and the second planar soft magnetic piece 217 of the power transmission coil composite 209 can be disposed around the outer end portion of the inner concave portion 219.
Meanwhile, the inner peripheral side and the inner end of the inner recess 219 together enclose a recess cavity 221, and the recess cavity 221 is used for the power receiving coil composite 107 to extend into, so that the first annular bobbin 115 and the first annular soft magnetic member 117 of the power receiving coil composite 107 are opposite to the strong side wall of the inner recess cavity so as to be opposite to the second annular bobbin 211 and the second annular soft magnetic member 213. Meanwhile, the first planar coil 119 and the first planar ferromagnetic member 121 of the power receiving coil complex 107 are made to oppose the cavity bottom wall of the recess cavity 221, and thus can oppose the second planar coil 215 and the second planar ferromagnetic member 217. With this arrangement, it is possible to facilitate the charging operation after the battery assembly 100 is inserted into the recess cavity 221. Meanwhile, the relative relationship between the power receiving coil composite 107 and the power transmitting coil composite 209 can improve the transmission capability and enhance the conversion of the charging capability.
Referring to fig. 1 to fig. 4 again, in the present embodiment, the housing 101 of the battery assembly 100 specifically includes a cylinder 109, a positive end case 111, and a negative end case 113. The cylinder 109 is a cylindrical structure, is an aluminum alloy outer cylinder, is used for accommodating the battery 103, and is disposed around the circumference of the battery 103. The positive end casing 111 is a composite structure of a positive PCBA assembly 129 and a cover 131, which is disposed adjacent to the positive end of the battery 103, and the positive PCBA assembly 129 and the positive end are electrically connected by a positive contact 123. The negative terminal housing 113 is disposed adjacent to the negative terminal of the battery 103 and is electrically connected to the negative terminal by a negative contact 125. The positive contact 123 and the negative contact 125 are both elastic members, such as springs, to ensure the normal operation of charging and discharging the battery 103.
Alternatively, in this embodiment, the power receiving coil composite 107 is disposed adjacent to the negative end housing 113, that is, only one end of the negative end housing 113 of the battery assembly 100 needs to be inserted into the recessed cavity when the battery assembly 100 is charged. Meanwhile, the positive end shell 111 is provided with a charging terminal 127, an opening 126 opposite to the charging terminal 127 is formed in the cylinder 109, and the charging terminal 127 can be connected with an external charging wire through the opening 126, so that wired charging of the battery 103 is realized. Through setting up like this for battery 103 can be through external charging wire in order to realize wired charging, can realize wireless charging through the setting of receiving coil composite 107 and the compound 209 of power transmission coil again, can improve the convenience and the reliability of the mode of charging, guarantee that user's use is experienced.
The following describes the assembly, operation principle and beneficial effects of the battery assembly 100 and the charging stand 200 according to the embodiment of the present invention in detail:
in assembling the battery pack 100, the power receiving coil assembly 107 is fitted around the outside of the battery 103, the first wireless battery PCBA 105 is then placed in the cylindrical body 109 and connected to the battery 103 and the power receiving coil assembly 107, the battery 103 is then placed in the cylindrical body 109, the cylindrical body 109 is covered at both ends with the positive end case 111 and the negative end case 113, the positive end case 111 is connected to the positive electrode of the battery 103 via the positive contact spring, and the negative end case 113 is connected to the negative electrode of the battery 103 via the negative contact spring. When the charging stand 200 is installed, the power transmission coil composite piece 209 can be sleeved on the outer periphery of the inner concave part 219, the second wireless charging PCBA piece 207 is fixedly connected with the upper shell 203 through a fastener, and then the upper shell 203 and the lower shell 205 are buckled.
When the battery assembly 100 needs to be charged in a wired manner, a charging wire may be externally connected to the charging terminal 127. When the battery assembly 100 needs to be wirelessly charged, the end of the battery assembly 100 where the power receiving coil composite 107 is disposed may be inserted into the inner recess formed by the inner recess 219, so that the power receiving coil composite 107 is opposite to the power transmitting coil composite 209.
In the above process, on one hand, the direction and direction of the magnetic lines of the magnetic field can be restricted by the arrangement of the first annular soft magnetic member 117, the first planar soft magnetic member 121, the second annular soft magnetic member 213 and the second planar soft magnetic member 217 to limit the charging area and range, so that the battery 103 can be charged in a specific area, the interference between the metal structure of the battery 103 and the alternating magnetic field is reduced, the eddy current effect is reduced, the damage can be reduced, the charging efficiency is improved, and the potential safety hazard is reduced; on the other hand, electrons can be transmitted between the first annular coil drum 115 and the first annular soft magnetic element 117, and the second annular coil and the second annular soft magnetic element 213, between the first planar coil 119 and the first planar soft magnetic element 121, and the second annular coil and the second annular soft magnetic element 213, between the first annular coil drum 115 and the first annular soft magnetic element 117, and the second planar coil 215 and the second planar soft magnetic element 217, and between the first planar coil 119 and the first planar soft magnetic element 121, and between the second planar coil 215 and the second planar soft magnetic element 217, so that the charging capability of the battery 103 can be effectively improved, and the charging efficiency can be ensured.
In summary, the embodiment of the utility model provides the battery assembly 100 and the charging stand 200 with low potential safety hazard and high charging efficiency.
The above is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and various modifications and changes will occur to those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. A battery assembly, comprising:
a housing (101);
a battery (103) disposed within the housing (101);
a first wireless charger PCBA (105) disposed within the housing (101) and electrically connected to the battery (103);
the power receiving coil composite part (107) is a composite part formed by connecting a coil and a soft magnetic part, and the power receiving coil composite part (107) is arranged in the shell (101), is connected with the first wireless charging PCBA part (105), is arranged around the periphery or the end part of the battery (103), and is used for being matched with a charging seat (200) to charge the battery (103).
2. The battery assembly of claim 1, wherein:
the power receiving coil composite (107) comprises a first annular coil cylinder (115) and a first annular soft magnetic component (117) arranged around the inner periphery or the outer periphery of the first annular coil cylinder (115), wherein the first annular coil cylinder (115) and the first annular soft magnetic component (117) are arranged around the circumferential direction of the battery (103).
3. The battery assembly of claim 1, wherein:
the power receiving coil composite (107) comprises a first planar coil (119) and a first planar soft magnetic part (121) arranged on the end face of the first planar coil (119), and the first planar coil (119) and the first planar soft magnetic part (121) are arranged at the end part of the battery (103).
4. A battery assembly according to any one of claims 1 to 3, characterized in that:
casing (101) include barrel (109), anodal end shell (111) and negative pole end shell (113), barrel (109) are wound the circumference setting of battery (103), anodal end shell (111) are close to the anodal end setting of battery (103), and with the anodal end is connected through anodal contact (123) electricity, negative pole end shell (113) are close to the negative pole end setting of battery (103), and with the negative pole end is connected through negative pole contact (125) electricity.
5. The battery assembly of claim 4, wherein:
the power receiving coil composite (107) is arranged adjacent to the negative end shell (113), the positive end shell (111) is provided with a charging terminal (127), and the charging terminal (127) is used for externally connecting a charging wire to charge the battery (103).
6. A charging cradle for charging a battery pack according to any one of claims 1 to 5, the charging cradle comprising:
a housing (201);
a second wireless charging PCBA (207) disposed within the housing (201);
and the power transmission coil composite piece (209) is arranged in the shell (201) and is connected with the second wireless charging PCBA piece (207), the power transmission coil composite piece (209) is a composite piece formed by connecting a coil and a soft magnetic piece, and the power transmission coil composite piece (209) is used for being opposite to the power receiving coil composite piece (107) so as to charge the battery (103) when an external power supply is connected.
7. The charging dock of claim 6, wherein:
the power transmission coil composite (209) includes a second annular bobbin (211) and a second annular soft magnetic member (213) disposed around an inner circumference or an outer circumference of the second annular bobbin (211).
8. The charging dock of claim 6, wherein:
the power transmission coil composite piece (209) comprises a second planar coil (215) and a second planar soft magnetic piece (217) arranged on the end face of the second planar coil (215).
9. The charging dock of claim 6, wherein:
the shell (201) is provided with an inner concave part (219), the power transmission coil composite piece (209) is arranged around the outer periphery side and the outer end part of the inner concave part (219), the inner periphery side and the inner end part of the inner concave part (219) jointly enclose a concave cavity (221), and the concave cavity (221) is used for the power receiving coil composite piece (107) to extend into.
10. The charging dock of claim 6, wherein:
the housing (201) comprises an upper shell (203) and a lower shell (205);
a buckling groove (223) is formed in the circumferential direction of the upper shell (203), and the circumferential edge of the lower shell (205) is buckled with the buckling groove (223); or, the circumference of the lower shell (205) is provided with a buckling groove (223), and the circumferential edge of the upper shell (203) is buckled with the buckling groove (223).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220575521.XU CN216904378U (en) | 2022-03-16 | 2022-03-16 | Battery pack and charging seat |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220575521.XU CN216904378U (en) | 2022-03-16 | 2022-03-16 | Battery pack and charging seat |
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| Publication Number | Publication Date |
|---|---|
| CN216904378U true CN216904378U (en) | 2022-07-05 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220575521.XU Active CN216904378U (en) | 2022-03-16 | 2022-03-16 | Battery pack and charging seat |
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| Country | Link |
|---|---|
| CN (1) | CN216904378U (en) |
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- 2022-03-16 CN CN202220575521.XU patent/CN216904378U/en active Active
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