Charging box for cylindrical battery
By designing the magnetic structure and spring pin layout of the charging box, the problems of water and dust ingress and inconvenience of one-handed operation during the charging process of cylindrical batteries have been solved, achieving stable charging and convenient use.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-25
- Publication Date
- 2026-03-27
AI Technical Summary
Existing cylindrical battery chargers are prone to water and dust ingress during charging, and are inconvenient to operate with one hand, requiring the use of both hands.
A charging case was designed, which includes a base, a flip-up cover, a circuit board and a magnetic structure. The positive spring pin is located at the bottom of the charging compartment and the negative contact is located on the cover. A stable connection is achieved through magnetic attraction. The battery is completely enclosed during charging and supports one-handed operation.
It avoids the battery coming into contact with water and dust during charging, improves charging stability and convenience, supports one-handed operation, and enhances waterproof and dustproof capabilities.
Smart Images

Figure CN224053927U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to cylindrical battery charging technical field especially relates to a charging box for cylindrical battery. BACKGROUND
[0002] Cylindrical batteries such as No.5 battery, No.7 battery and the like are widely used in remote controller, toy, flashlight and the like as a common portable power supply, and cylindrical batteries include dry batteries that can be used only once and rechargeable batteries that can be repeatedly charged and discharged.
[0003] The rechargeable battery needs to be charged after use, and the cylindrical battery is generally charged by a clamping type charger such as the battery charger with the application number CN202130435652.9 on the market at present, the battery to be charged is aligned and pressed in the charging bin, and the battery is pried out from the charging bin after the charging is completed, not only the battery is exposed during the charging process, which is easy to be wetted and dusted, but also the battery is not convenient to be operated by one hand due to the large clamping force in the charging bin, and generally two hands are needed to press the charger by one hand and to put in or take out the battery by the other hand. SUMMARY
[0004] The utility model aims at the deficiencies of the prior art and provides a charging box for cylindrical battery, which can not only avoid the contact of the battery with water and dust during the charging process, but also is more convenient to operate by one hand and more convenient to use.
[0005] In order to achieve the above purpose, the utility model adopts the technical scheme that a charging box for cylindrical battery, including box seat, the box cover that can overturn cover is located the box cover of box seat top, circuit mainboard, charging socket, the box seat is equipped with several hollow cylindrical charging bin, the circuit mainboard is equipped with the same number of charging bin, the position corresponding positive spring needle, each positive spring needle is located the lower part of corresponding charging bin respectively, the circuit mainboard is equipped with grounding column, the one end of grounding column is connected with the circuit mainboard, the other end of grounding column is located the top of box seat, the box cover is equipped with grounding contact piece, the grounding contact piece is equipped with the grounding spring needle for contacting with grounding column, the grounding contact piece is protruded with the same number of charging bin, the position corresponding negative contact, the top of box seat is equipped with lower magnet, the box cover is equipped with the upper magnet matched with lower magnet.
[0006] Further improvement of the above scheme is that the front end of the box seat is provided with a display screen.
[0007] Further improvement of the above scheme is that a power supply for charging external electrical appliances is arranged in the box seat.
[0008] Further, the height of the battery protruding from the charging bin is 5-30mm when the battery is inserted into the charging bin.
[0009] Further, the charging socket is located at the rear end of the box seat.
[0010] Further, the charging bin is provided with a plurality of charging bins, and the charging bins are arranged in a matrix.
[0011] Further, the box cover comprises a grounding groove portion, a side blocking portion surrounding the grounding groove portion, and a grounding contact piece arranged on the grounding groove portion.
[0012] Further, the box seat is formed with a step portion matched with the side blocking portion; when the box cover is arranged on the box seat, the bottom of the side blocking portion is in contact with the top of the step portion, the front end surface of the side blocking portion is flush with the front end surface of the step portion, the rear end surface of the side blocking portion is flush with the rear end surface of the step portion, and the two side surfaces of the side blocking portion are flush with the two side surfaces of the step portion.
[0013] Further, the two side bottoms of the side blocking portion are respectively inclined structures with the rear end being higher and the front end being lower, and the two side tops of the step portion are respectively inclined structures with the rear end being higher and the front end being lower.
[0014] Further, the bottom of the side blocking portion and the top of the step portion are respectively round corner structures.
[0015] The utility model discloses a charging box for cylindrical battery, which comprises a box seat, a box cover arranged above the box seat, a circuit mainboard and a charging socket.
[0016] When charging the cylindrical battery through the utility model, first, the positive poles of each battery to be charged are respectively placed downward in each charging bin, then the lid is turned over and placed on the box seat, the positive poles of each battery to be charged in the charging bin are respectively in contact with each corresponding positive pole spring needle, the negative poles of each battery to be charged in the charging bin are respectively in contact with each corresponding negative pole contact, in contact with the grounding column through the grounding spring needle, forming a charging closed loop, charging through the charging socket, when charging is completed, the lid is turned over upward and opened, the battery is taken out from the charging bin; compared with the existing charger for charging the cylindrical battery, the utility model not only wraps the battery inside without direct naked setting, can avoid the battery contacting water and dust during charging, and does not need to clamp the battery and the charging bin, is more convenient for single-handed operation and use; through the magnetic attraction of the upper magnet and the lower magnet, the lid and the box seat can be more firmly and stably connected as a whole, the negative pole of the battery to be charged in the charging bin can be more stably in contact with the negative pole contact and conductive, the grounding spring needle can be more stably in contact with the grounding column and conductive, so that the stability of charging can be more guaranteed; compared with setting the positive pole spring needle on the lid, the utility model sets the positive pole spring needle below the charging bin, when charging, the positive pole of the battery is downward, through the gravity of the battery itself, the positive pole of the battery can be more closely in contact with the positive pole spring needle, and the situation of charging interruption or low efficiency caused by poor contact can be avoided. BRIEF DESCRIPTION OF DRAWINGS
[0017] Figure 1 It is a structure schematic view when the lid of the utility model is placed on the box seat.
[0018] Figure 2 It is a structure schematic view when the lid of the utility model is opened.
[0019] Figure 3 It is a structure schematic view when the utility model is equipped with the battery.
[0020] Figure 4 It is an exploded structure schematic view of the utility model.
[0021] Mark explanation: circuit mainboard 1, box seat 2, step part 21, lid 3, grounding recess part 31, side stop edge part 32, charging socket 4, charging bin 5, positive pole spring needle 6, grounding column 7, grounding contact 8, grounding spring needle 9, negative pole contact 10, lower magnet 11, upper magnet 12, display screen 13, power supply 14. DETAILED DESCRIPTION
[0022] The utility model will be further described in combination with the drawings, such as Figures 1-4As shown, the utility model of box seat 2, the box cover 3 of the box cover set in the box seat 2 top, circuit mainboard 1, charging socket 4, the box seat 2 is equipped with several hollow cylindrical charging bin 5, the circuit mainboard 1 is equipped with the same number of charging bin 5, the position corresponding positive spring needle 6, each positive spring needle 6 is located below the corresponding charging bin 5, the circuit mainboard 1 is equipped with grounding column 7, one end of grounding column 7 is connected with the circuit mainboard 1, the other end of grounding column 7 is located at the top of box seat 2, the box cover 3 is equipped with grounding contact 8, grounding contact 8 is equipped with grounding spring needle 9 for contacting with grounding column 7, grounding contact 8 is convex and is equipped with the same number of charging bin 5, the position corresponding negative contact 10, the top of box seat 2 is equipped with lower magnet 11, the box cover 3 is equipped with upper magnet 12 matched with lower magnet 11, compared with the existing traditional charger for cylindrical battery charging, when the battery is charged, the battery is not directly exposed and set inside, the battery can avoid contacting water and dust during charging, and the battery does not need to be clamped with the charging bin 5, which is more convenient for single-handed operation and use, and the use is more convenient, through the magnetic attraction of upper magnet 12 and lower magnet 11, the box cover 3 and the box seat 2 can be more firmly and stably connected as a whole, the negative electrode of the battery to be charged in the charging bin 5 can be more stably contacted and conducted with the negative contact 10, and the grounding spring needle 9 can be more stably contacted and conducted with the grounding column 7, so that the stability of charging can be more guaranteed, compared with the positive spring needle 6 arranged on the box cover 3, the utility model sets the positive spring needle 6 below the charging bin 5, and the positive electrode of the battery is downward during charging, so that the positive electrode of the battery can be more closely contacted with the positive spring needle 6 through the gravity of the battery itself, and the charging interruption or low efficiency caused by poor contact can be avoided.
[0023] The front end of the box seat 2 is provided with a display screen 13, and the current charging condition such as the current charging capacity and / or the required time to be filled can be directly understood through the display screen 13, and the practicability is stronger.
[0024] The box seat 2 is provided with a power supply 14 for charging external electrical appliances, and when the battery is charged through the charging socket 4, the power supply 14 is also charged, and when the external electrical appliance is connected with the charging socket 4, the power supply 14 can function as a power bank to charge the external electrical appliance, so that multifunctionalization can be realized, more use requirements can be met, and the practicability is stronger.
[0025] When the battery to be charged is inserted into the charging bin 5, the height of the battery protruding from the charging bin 5 is preferably 5-30mm, which is more convenient for inserting and taking out the battery.
[0026] The charging socket 4 is located at the rear end of the box seat 2, and the overall layout is more beautiful and reasonable.
[0027] The charging bin 5 is multiple, and the charging bin 5 in the embodiment is eight, and the charging bins 5 are distributed in a matrix, and the whole is more compact and reasonable.
[0028] The box cover 3 comprises a grounding groove part 31 and a side blocking edge part 32 surrounding the four sides of the grounding groove part 31, and the grounding contact piece 8 is arranged on the grounding groove part 31; through the arrangement of the side blocking edge part 32, the water and dust blocking capacity of the side of the box cover 3 can be further enhanced, so that the battery can be better prevented from contacting water and dust during charging.
[0029] The box seat 2 is formed with a step part 21 matched with the side blocking edge part 32; when the box cover 3 is covered on the box seat 2, the bottom of the side blocking edge part 32 is in contact with the top of the step part 21, the front end face of the side blocking edge part 32 is flush with the front end face of the step part 21, the rear end face of the side blocking edge part 32 is flush with the rear end face of the step part 21, and the two side faces of the side blocking edge part 32 are flush with the two side faces of the step part 21; when the box cover 3 is covered on the box seat 2, the box cover 3 and the box seat 2 are visually integrated, the whole is not only more beautiful, but also has a better hand feeling.
[0030] The two side bottoms of the side blocking edge part 32 are respectively inclined structures with the rear end high and the front end low, and the two side tops of the step part 21 are respectively inclined structures with the rear end high and the front end low; through the arrangement of the two side bottoms of the side blocking edge part 32 and the two side tops of the step part 21 into inclined structures, even if water is accidentally poured on the utility model, the water can be well guided away through the inclined structures, and the water is prevented from being retained or even flowing into the inside, and the whole has stronger waterproofness.
[0031] The bottom of the side blocking edge part 32 and the top of the step part 21 are respectively round corner structures, which can prevent the hand and the battery from being scratched.
[0032] Working principle:
[0033] The positive pole of each battery to be charged is placed in each charging compartment 5, and then the cover 3 is turned over and placed on the box seat 2, the positive pole of each battery to be charged in the charging compartment 5 is in contact with each corresponding positive pole spring needle 6, the negative pole of each battery to be charged in the charging compartment 5 is in contact with each corresponding negative pole contact 10, and the ground spring needle 9 is in contact with the grounding column 7, forming a charging closed loop, and charging is performed through the charging socket 4, when the charging is completed, the cover 3 is turned up and opened, and the battery can be taken out from the charging compartment 5; compared with the existing traditional charger for charging cylindrical batteries, the utility model not only wraps the battery inside and does not directly expose the battery, which can avoid the situation that the battery contacts water and dust during charging, but also does not need to clamp the battery and the charging compartment 5, which is more convenient for single-handed operation and use; through the magnetic attraction of the upper magnet 12 and the lower magnet 11, the cover 3 and the box seat 2 can be more firmly and stably connected as a whole, the negative pole of the battery to be charged in the charging compartment 5 can be more stably in contact with the negative pole contact 10 and conductive, and the ground spring needle 9 can be more stably in contact with the grounding column 7 and conductive, thereby more capable of ensuring the stability of charging; compared with the positive pole spring needle 6 arranged on the cover 3, the utility model arranges the positive pole spring needle 6 below the charging compartment 5, and when charging, the positive pole of the battery is downward, and through the gravity of the battery itself, the positive pole of the battery can be more closely in contact with the positive pole spring needle 6, and the situation of charging interruption or low efficiency caused by poor contact can be avoided.
[0034] Of course, the above is only a preferred embodiment of the utility model, so equivalent changes or modifications made according to the structure, features and principles of the utility model patent application range are included in the utility model patent application range.
Claims
1. A charging case for a cylindrical battery, characterized by: The utility model relates to a charging box, including box seat (2), the box cover (3) of the reversible cover of box seat (2) is located above, circuit mainboard (1), charging socket (4), the box seat (2) is equipped with several hollow cylindrical charging warehouse (5), the circuit mainboard (1) is equipped with the same number of positive spring needle (6) with charging warehouse (5) position corresponding, each positive spring needle (6) is located below corresponding charging warehouse (5), the circuit mainboard (1) is equipped with ground column (7), one end of ground column (7) is connected with the circuit mainboard (1), the other end of ground column (7) is located at the top of box seat (2), the box cover (3) is equipped with ground contact (8), ground contact (8) is equipped with the ground spring needle (9) for being contacted with ground column (7), ground contact (8) is protrudingly equipped with the same number of negative contact (10) with charging warehouse (5) position corresponding, the top of box seat (2) is equipped with lower magnet (11), the box cover (3) is equipped with upper magnet (12) matched with lower magnet (11).
2. A charging case for cylindrical batteries according to claim 1, characterized in that: The front end of the box seat (2) is provided with a display screen (13).
3. A charging case for cylindrical batteries according to claim 1, characterized in that: The box seat (2) is internally provided with a power supply (14) for charging external electrical appliances.
4. The charging case for cylindrical batteries of claim 1, wherein: When the battery to be charged is inserted into the charging warehouse (5), the battery protrudes the height of the charging warehouse (5) by 5-30 mm.
5. The charging case for cylindrical batteries of claim 1, wherein: The charging socket (4) is located at the rear end of the box seat (2).
6. A charging case for cylindrical batteries according to claim 1, characterized in that: The charging warehouse (5) has a plurality of charging warehouses (5), and each charging warehouse (5) is arranged in a matrix.
7. A charging case for cylindrical batteries according to claim 1, characterized in that: The box cover (3) includes a grounding groove portion (31) and a side blocking edge portion (32) surrounding the grounding groove portion (31), and the grounding contact (8) is arranged on the grounding groove portion (31).
8. A charging case for cylindrical batteries according to claim 7, characterized in that: The box seat (2) is formed with a stepped portion (21) matched with the side blocking edge portion (32); when the box cover (3) is arranged on the box seat (2), the bottom of the side blocking edge portion (32) is in contact with the top of the stepped portion (21), the front end face of the side blocking edge portion (32) is flush with the front end face of the stepped portion (21), the rear end face of the side blocking edge portion (32) is flush with the rear end face of the stepped portion (21), and the two side faces of the side blocking edge portion (32) are flush with the two side faces of the stepped portion (21).
9. A charging case for cylindrical batteries as defined in claim 8, characterized in that: The two side bottoms of the side blocking edge portion (32) are inclined structures with the rear end being higher and the front end being lower, and the two side tops of the stepped portion (21) are inclined structures with the rear end being higher and the front end being lower.
10. A charging case for cylindrical batteries according to claim 8, characterized in that: The bottom of the side blocking edge portion (32) and the top of the stepped portion (21) are both round corner structures.
Citation Information
Patent Citations
Battery charger (four-slot NiMH)
CN306933793S