A battery charging device

Abstract

The utility model discloses a battery charging device relates to battery charging technical field, aims at solving the problem that existing magnetic attraction connecting device cannot stably protect the battery. It includes shell body and upper cover, and shell body top is connected through rear axle body rotation upper cover, and rear axle body sheath rear torsional spring and both ends abut against shell body and upper cover, and the upper cover is equipped with the detent lug, and the shell body opens the avoidance slot, and the cover is connected through the front axle body rotation in the slot and is pressed, and the front axle body sheath front torsional spring and both ends abut against avoidance slot and the cover, and the cover inboard is clamped with the detent lug. Shell body, upper cover inside part clamps down inner lining, upper inner lining respectively, and upper inner lining installs circuit board and positive cap with conductive spring's anode cap, conductive cap, and down inner lining is equipped with battery compartment, and shell body installs the conductive metal sheet with negative cap, conductive rod. The device can stably lock and protect the battery, guarantees the safety of charging, and improves the use reliability.

Description

Technical Field

[0001] This utility model relates to the field of battery charging technology, and in particular to a battery charging device. Background Technology

[0002] Most battery charging devices on the market use magnetic attraction to connect the casing and the top cover to simplify opening and closing operations. However, when the device is subjected to external impact, vibration, or tilting, the magnetic structure is difficult to maintain a stable locking state, and the top cover is prone to being opened accidentally, which can lead to the internal battery becoming loose or even falling off. This not only affects the continuity of the charging process but may also cause damage to the battery, posing a safety hazard. Utility Model Content

[0003] To address the technical problems existing in the background art, this utility model proposes a battery charging device.

[0004] This utility model discloses a battery charging device, including a housing, the top of which is rotatably connected to a top cover via a rear axle, a rear torsion spring sleeved on the outside of the rear axle, the two ends of which abut against the housing and the top cover respectively, a locking protrusion provided on the front of the top cover, a clearance groove provided on the front of the housing, a pressure cover rotatably connected to the inside of the clearance groove via a front axle, a front torsion spring sleeved on the outside of the front axle, the two ends of which abut against the clearance groove and the pressure cover, and the inner top of the pressure cover engaging with the locking protrusion.

[0005] Furthermore, the upper cover is internally engaged with and fixed to the upper inner liner. The upper inner liner has a first through hole and a second through hole respectively. A conductive spring is installed inside the first through hole and the second through hole. The bottom end of the conductive spring in the first through hole is connected to the positive electrode cap, and the bottom end of the conductive spring in the second through hole is connected to the conductive cap. The bottom ends of the positive electrode cap and the conductive cap protrude from the lower surfaces of the first through hole and the second through hole respectively.

[0006] Furthermore, a circuit board is installed inside the upper liner, and the output end of the circuit board is connected to a conductive spring to conduct the positive electrode cap and the conductive cap through the conductive spring.

[0007] Furthermore, several transparent charging icons are embedded in the top of the top cover, and several charging indicator lights are connected to the top of the circuit board. The charging indicator lights correspond to the charging icons, and the bottom of the circuit board is connected to a charging interface. The charging end of the charging interface extends to the outside of the top cover to insert a charging cable.

[0008] Furthermore, the lower inner liner is snapped into place inside the outer shell, and a battery compartment is formed inside the lower inner liner. The battery compartment contains a battery and corresponds to the first through hole. A protective tube is connected to the edge of the lower inner liner and corresponds to the second through hole. The bottom end of the positive electrode cap abuts against the positive electrode of the battery.

[0009] Furthermore, a conductive metal plate is fixed to the bottom of the inner part of the outer casing, and several negative electrode caps are connected to the top of the conductive metal plate. The negative electrode caps are in contact with the negative electrode of the battery. A conductive rod is connected to the top edge of the conductive metal plate. The conductive rod is inserted into the inside of the protective tube, and its top is in contact with the conductive cap.

[0010] Furthermore, the outer shell, upper cover, upper inner liner, and lower inner liner are all components made of insulating material, and the conductive spring, positive electrode cap, conductive cap, conductive rod, conductive metal plate, and negative electrode cap are all components made of conductive metal.

[0011] The beneficial effects of this utility model are as follows: The mechanical locking structure, consisting of the rear axle, rear torsion spring, front axle, front torsion spring, pressure cover, and locking protrusion, replaces the traditional magnetic connection method. The pressure cover and locking protrusion can form a stable physical lock, which can effectively prevent the top cover from opening accidentally even if the device is subjected to collision, vibration, or tilting. This completely solves the problem of the internal battery loosening and falling off due to insufficient magnetic connection force, ensuring the stability of the battery charging process and battery safety. At the same time, the locking structure makes the shell and the top cover fit more tightly, which can reduce the intrusion of dust and moisture. With the synergistic effect of internal insulation and conductive components, it not only ensures safe and stable charging, but also improves the device's protection effect on the battery and overall durability. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the disassembled structure of this utility model; Figure 2 This is a schematic diagram of the structure of the upper cover in this utility model; Figure 3 This is a schematic diagram of the circuit board structure in this utility model; Figure 4 This is a schematic diagram of the upper and lower inner linings in this utility model; Figure 5 This is a schematic diagram of the structure of the present invention in the assembled and closed state; Figure 6 This is a schematic diagram of the structure of the present invention in its assembled and opened state; Figure 7 This is a cross-sectional view of the snap-fit ​​connection between the outer shell and the upper cover in this utility model; Figure 8 This is a cross-sectional view of the conductive spring, conductive cap, conductive rod, and conductive metal plate in this utility model; Figure 9 This is a cross-sectional view of the conductive spring, positive electrode cap, negative electrode cap, and battery in contact with the present invention.

[0013] In the diagram: 1. Outer shell; 2. Top cover; 201. Charging icon; 3. Rear axle; 4. Rear torsion spring; 5. Locking protrusion; 6. Clearance groove; 7. Front torsion spring; 8. Pressure cover; 9. Front axle; 10. Upper inner liner; 101. First through hole; 102. Second through hole; 11. Positive cap; 12. Conductive cap; 13. Circuit board; 131. Charging indicator light; 132. Charging interface; 14. Conductive spring; 15. Lower inner liner; 151. Battery compartment; 152. Protective tube; 16. Conductive metal plate; 161. Negative cap; 162. Conductive rod; 17. Battery. Detailed Implementation

[0014] Reference Figure 1-9 The present invention proposes a battery charging device, including an outer shell 1 and an upper cover 2. The upper cover 2 is rotatably connected to the outer shell 1 via a rear shaft 3. The two ends of a rear torsion spring 4 sleeved on the outside of the rear shaft 3 respectively abut against the outer shell 1 and the upper cover 2 to form an elastic reset structure. When it is necessary to open the device to place or remove the battery 17, the elastic force of the rear torsion spring 4 can assist the upper cover 2 to rotate upward around the rear shaft 3, reducing the operating force. When closed, the upper cover 2 can be smoothly rotated through the rear shaft 3 to a state of being in contact with the outer shell 1. To achieve stable closure between the upper cover 2 and the outer shell 1, the upper cover 2 is provided with a locking protrusion 5 on the front, and the outer shell 1 is provided with a corresponding clearance groove 6 on the front. The clearance groove 6 is rotatably connected to the pressure cover 8 through the front axle 9. The front torsion spring 7 sleeved on the outside of the front axle 9 abuts against the clearance groove 6 and the pressure cover 8 at both ends. In the closed state, the pressure cover 8 is tightly engaged with the locking protrusion 5 under the elastic force of the front torsion spring 7, preventing the upper cover 2 from being opened accidentally. When it needs to be opened, simply press the lower part of the pressure cover 8 to make the pressure cover 8 rotate around the front axle 9, and the inner top part disengages from the locking protrusion 5. The upper cover 2 will then automatically pop open under the action of the rear torsion spring 4. The operation is convenient and efficient. The upper cover 2 is fitted with an upper inner liner 10. The upper inner liner 10 serves to separate and fix the internal components, and also prevents the conductive components from directly contacting the upper cover 2 and causing the risk of leakage. The upper inner liner 10 has a first through hole 101 and a second through hole 102. A conductive spring 14 is installed in both through holes. The bottom end of the conductive spring 14 in the first through hole 101 is connected to the positive electrode cap 11, and the bottom end of the conductive spring 14 in the second through hole 102 is connected to the conductive cap 12. The bottom ends of the positive electrode cap 11 and the conductive cap 12 both protrude from the lower surface of the through hole to ensure accurate contact with the corresponding components in the future. The upper inner liner 10 also houses a circuit board 13. The output end of the circuit board 13 is connected to a conductive spring 14, which can conduct the charging current to the positive cap 11 and the conductive cap 12. Meanwhile, several transparent charging icons 201 are embedded in the top of the upper cover 2. The top of the circuit board 13 is connected to a charging indicator light 131. When the device is charging, the charging indicator light 131 lights up, and the light can be seen through the transparent charging icons 201 to make it easy for users to judge the charging progress. The charging interface 132 connected to the bottom of the circuit board 13 extends to the outside of the upper cover 2. Users can connect the circuit board 13 to an external power source by inserting a charging cable to provide power support for the entire charging process. The lower inner liner 15 is snapped into the inside of the outer shell 1. The lower inner liner 15 has a battery compartment 151 inside. The size of the battery compartment 151 is adapted to the battery 17, which can position the battery 17 and prevent the battery 17 from shifting during charging. The battery compartment 151 corresponds vertically to the first through hole 101 of the upper inner liner 10, ensuring that when the upper cover 2 is closed, the positive cap 11 in the first through hole 101 can accurately abut against the positive terminal of the battery 17. The edge of the lower inner liner 15 is connected to a protective tube 152, which corresponds to the second through hole 102. It can protect and guide the subsequently inserted conductive rod 162, and prevent the conductive rod 162 from shifting and affecting the contact effect. A conductive metal plate 16 is fixed at the bottom inside the outer casing 1. Several negative electrode caps 161 are connected to the top of the conductive metal plate 16. The negative electrode caps 161 correspond one-to-one with the negative electrode of the battery 17 in the battery compartment 151 and abut against each other to form a negative electrode path for the current loop. The conductive rod 162 connected to the top edge of the conductive metal plate 16 is positioned to correspond to the protective tube 152 of the lower inner liner 15. The conductive rod 162 is inserted inside the protective tube 152. When the upper cover 2 is closed, the top of the conductive rod 162 can abut tightly against the conductive cap 12 in the second through hole 102, so that the current is conducted through the conductive cap 12 and the conductive rod 162 to the conductive metal plate 16, and then through the negative electrode cap 161 to the negative electrode of the battery 17, finally forming a complete charging circuit to realize the charging operation of the battery 17. Finally, it should be noted that the outer shell 1, upper cover 2, upper inner liner 10, and lower inner liner 15 are all made of insulating material, which can effectively isolate current and prevent users from being electrocuted during operation; while the conductive spring 14, positive cap 11, conductive cap 12, conductive rod 162, conductive metal plate 16, and negative cap 161 are all made of conductive metal material, ensuring efficient current conduction between components and guaranteeing the stability and reliability of the charging process.

[0015] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A battery charging device, comprising a housing (1), characterized in that, The top of the outer shell (1) is rotatably connected to the upper cover (2) via the rear axle (3). The rear axle (3) is fitted with a rear torsion spring (4). The two ends of the rear torsion spring (4) abut against the outer shell (1) and the upper cover (2) respectively. The upper cover (2) has a locking protrusion (5) on its front side. The outer shell (1) has a relief groove (6) on its front side. The relief groove (6) is rotatably connected to the pressure cover (8) via the front axle (9). The front axle (9) is fitted with a front torsion spring (7). The two ends of the front torsion spring (7) abut against the relief groove (6) and the pressure cover (8). The inner side of the top of the pressure cover (8) engages with the locking protrusion (5).

2. The battery charging device according to claim 1, characterized in that, The upper cover (2) is fitted with an upper inner liner (10). The upper inner liner (10) has a first through hole (101) and a second through hole (102) respectively. A conductive spring (14) is provided inside the first through hole (101) and the second through hole (102). The bottom end of the conductive spring (14) in the first through hole (101) is connected to the positive electrode cap (11). The bottom end of the conductive spring (14) in the second through hole (102) is connected to the conductive cap (12). The bottom ends of the positive electrode cap (11) and the conductive cap (12) protrude from the lower surface of the first through hole (101) and the second through hole (102) respectively.

3. The battery charging device according to claim 2, characterized in that, The upper liner (10) has a circuit board (13) installed inside. The output end of the circuit board (13) is connected to a conductive spring (14) to conduct the positive cap (11) and the conductive cap (12) through the conductive spring (14).

4. The battery charging device according to claim 3, characterized in that, The top of the cover (2) has several transparent charging icons (201) embedded in it. The top of the circuit board (13) is connected to several charging indicator lights (131). The charging indicator lights (131) correspond to the charging icons (201). The bottom of the circuit board (13) is connected to a charging interface (132). The charging end of the charging interface (132) extends to the outside of the cover (2) to insert a charging cable.

5. The battery charging device according to claim 2, characterized in that, The lower inner liner (15) is fixed inside the outer shell (1). A battery compartment (151) is opened inside the lower inner liner (15). A battery (17) is placed inside the battery compartment (151). The battery compartment (151) corresponds to the first through hole (101). A protective tube (152) is connected to the edge of the lower inner liner (15). The protective tube (152) corresponds to the second through hole (102). The bottom end of the positive electrode cap (11) abuts against the positive electrode of the battery (17).

6. The battery charging device according to claim 5, characterized in that, A conductive metal plate (16) is fixed at the bottom of the inner side of the outer shell (1). Several negative electrode caps (161) are connected to the top of the conductive metal plate (16). The negative electrode caps (161) are against the negative electrode of the battery (17). A conductive rod (162) is connected to the top edge of the conductive metal plate (16). The conductive rod (162) is inserted into the inside of the protective tube (152) and its top end is against the conductive cap (12).

7. The battery charging device according to claim 6, characterized in that, The outer shell (1), upper cover (2), upper inner liner (10), and lower inner liner (15) are all components made of insulating material, and the conductive spring (14), positive electrode cap (11), conductive cap (12), conductive rod (162), conductive metal plate (16), and negative electrode cap (161) are all components made of conductive metal material.

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