Charger battery fixing structure

Abstract

The utility model discloses a charger battery fixing structure, and relates to the technical field of chargers. Comprising a charger body, the charger body comprises a base and an upper cover, the base comprises a battery bin internally provided with a plurality of charging cavities, an elastic arm is arranged on one side of the inner wall of each charging cavity, a main board is arranged at the bottom of the battery bin, and springs in one-to-one correspondence with the charging cavities are arranged at the top of the main board. The elastic arms on the inner wall of the charging cavity rebound through elastic deformation to continuously abut against the battery, the battery is forced to be tightly attached to the side wall of the charging cavity, shaking and contact deviation are reduced, noise caused by shaking of the battery in the charging cavity is avoided when the battery is carried outdoors, double stable contact of the positive electrode and the negative electrode of the battery is achieved in cooperation with the jacking effect of the pagoda-shaped spring, and the contact stability is greatly improved. Due to the variable stiffness characteristics of initial flexibility and later rigidity enhancement of the pagoda-shaped spring, the battery is more labor-saving to mount, meanwhile, the high rigidity after compression ensures continuous and stable jacking on the bottom of the battery, and the stability is further improved.

Description

Technical Field

[0001] This utility model relates to the field of charger technology, specifically a charger battery fixing structure. Background Technology

[0002] A battery charger is an electronic device used to charge rechargeable batteries for electric vehicles, power tools, video games, laptops, photovoltaic devices, digital and small portable electronic devices and appliances. It generally consists of a casing, a power conversion section, a charging detection section, and a charging protection section.

[0003] Chargers for AA and AAA batteries on the market rely on metal springs or single-sided springs to fix the batteries. The batteries are prone to shaking, which can lead to poor contact. In addition, the shaking of the batteries during transportation can cause noise problems. The spring welding points have no protection and are prone to falling off due to vibration, resulting in unsatisfactory performance. Utility Model Content

[0004] This invention provides a charger battery fixing structure to solve the problems in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a charger battery fixing structure, including a charger body, the charger body including a base and a top cover, the base including a battery compartment with a plurality of charging chambers inside, a spring arm provided on one side of the inner wall of the charging chamber, a main board provided at the bottom of the battery compartment, and a spring corresponding to each of the plurality of charging chambers provided at the top of the main board.

[0006] Furthermore, a notch is provided on one side of the inner wall of the charging cavity, and a bent piece extending into the charging cavity is provided inside the notch.

[0007] Furthermore, the spring arm is disposed on one end of the bent piece, and the spring arm is disposed at an angle.

[0008] Furthermore, the spring is a pagoda-shaped spring.

[0009] Furthermore, the spring and the charging cavity are arranged coaxially.

[0010] Furthermore, a bracket is embedded at the bottom of the battery compartment, and the bracket has limiting holes inside that correspond to several springs.

[0011] Furthermore, the upper cover includes an upper shell and a lamp panel disposed inside the upper shell, and an inner cover is provided at the bottom of the lamp panel.

[0012] Furthermore, the battery compartment is fitted with decorative parts on its exterior, and a bottom cover is provided at the bottom of the battery compartment.

[0013] Furthermore, the top of the battery compartment and the bottom of the inner cover are provided with matching buckles, and the upper cover and the base are movably connected by the buckles.

[0014] Furthermore, the battery compartment is provided with a conductive terminal one that is electrically connected to the motherboard, and the bottom of the lamp board is integrated with a conductive terminal two, and the conductive terminal one and the conductive terminal two are electrically connected.

[0015] Compared with the prior art, the present invention provides a charger battery fixing structure, which has the following advantages:

[0016] The charger's battery fixing structure features spring arms on the inner wall of the charging chamber that continuously press against the battery through elastic deformation and rebound, forcing the battery to fit tightly against the side wall of the charging chamber. This reduces shaking and contact misalignment, and prevents noise from the battery shaking inside the charging chamber when carried around. Combined with the lifting effect of the pagoda-shaped spring, it achieves stable dual contact between the positive and negative terminals of the battery, greatly improving contact stability. The pagoda-shaped spring's initial flexibility and subsequent stiffness enhancement characteristics make battery installation easier, while its high stiffness after compression ensures continuous and stable pressure on the bottom of the battery, further improving stability. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of this utility model;

[0018] Figure 2 This is a cross-sectional view of the structure of this utility model;

[0019] Figure 3 This is an exploded view of the structure of this utility model;

[0020] Figure 4 This is an exploded view of the structure of this utility model.

[0021] In the diagram: 1. Charger body; 11. Base; 111. Battery compartment; 1111. Conductive terminal one; 112. Charging chamber; 113. Spring arm; 114. Main board; 115. Spring; 116. Notch; 1161. Bending part; 117. Bracket; 1171. Limiting hole; 118. Decorative part; 119. Bottom cover; 12. Top cover; 121. Upper shell; 122. Light panel; 123. Inner cover; 124. Conductive terminal two; 125. PC lens; 13. Buckle. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] Please see Figure 1-4 This utility model discloses a charger battery fixing structure, including a charger body 1. The charger body 1 includes a base 11 and a top cover 12. The base 11 includes a battery compartment 111 with a plurality of charging chambers 112 inside. A spring arm 113 is provided on one side of the inner wall of the charging chamber 112. A main board 114 is provided at the bottom of the battery compartment 111. A spring 115 corresponding to each of the plurality of charging chambers 112 is provided at the top of the main board 114.

[0024] Specifically, a notch 116 is provided on one side of the inner wall of the charging cavity 112, and a bent piece 1161 is provided inside the notch 116, extending into the charging cavity 112 at one end. The spring arm 113 is provided on one end of the bent piece 1161, and the spring arm 113 is inclined. The spring 115 is a pagoda-shaped spring.

[0025] In this embodiment, an AA or AAA type battery to be charged is placed inside the battery cavity. The battery contacts the spring arm 113, which is made of plastic. By utilizing the elastic deformation and restoring force of the plastic material, the spring arm 113 rebounds and continuously contacts the battery, so that the battery is close to the side wall of the charging cavity 112. When the battery is installed inside the battery cavity, the spring 115 will continuously push the battery up, so that the positive and negative terminals of the battery can be stably electrically connected. During the compression process of the pagoda-shaped spring, the effective number of turns gradually decreases, and the stiffness increases with the increase of deformation. It is flexible in the initial stage and becomes more rigid in the later stage, making it easier to install the battery.

[0026] Specifically, the spring 115 and the charging cavity 112 are arranged coaxially.

[0027] In this embodiment, the diameter of the spring 115 is greater than half the diameter of the charging cavity 112. When the spring arm 113 tilts against the battery, the spring 115 can still effectively contact the bottom of the battery.

[0028] Specifically, a bracket 117 is embedded at the bottom of the battery compartment 111, and the bracket 117 has limiting holes 1171 inside that correspond to and are fitted with a number of springs 115.

[0029] In this embodiment, the bracket 117 is fixed to the bottom of the battery compartment 111 by screws. The setting of the limiting hole 1171 can limit the bottom of the spring 115, ensuring the stability of the welding point between the bottom end of the spring 115 and the main board 114, making it less likely to fall off, and improving the overall service life of the product.

[0030] Specifically, the upper cover 12 includes an upper shell 121 and a lamp panel 122 disposed inside the upper shell 121. The bottom of the lamp panel 122 is provided with an inner cover 123. The battery compartment 111 is covered with a decorative piece 118. The bottom of the battery compartment 111 is also provided with a bottom cover 119.

[0031] In this embodiment, the motherboard 114 integrates a power supply interface for connecting the power cord, one end of which extends to the bottom of one side of the battery compartment. The light panel 122 integrates several LEDs, each corresponding to one of the charging chambers 112, used to display the charging status of the battery inside the charging chamber 112. The bottom of the light panel 122 has contact metal that matches the positive terminal of the battery. When the spring 115 lifts the battery, the spring 115 is electrically connected to the negative terminal of the battery, and the positive terminal of the battery contacts the contact metal to achieve conductivity. The interior of the upper shell 121... The upper shell 121 has through holes corresponding to several LED beads, and a PC lens is also provided on the top of the upper shell 121. When the LED beads are lit, the light is projected onto the PC lens through the through holes, making it easy for users to observe which charging chamber 112's battery is charging. The inner cover 123 and the light board 122 are fixed to the inside of the upper shell 121 with screws. The bottom cover 119 and the main board 114 are fixed to the bottom of the battery compartment 111 with screws. The bottom of the bottom cover 119 is also provided with a silicone pad to cover the screw holes, maintaining the product's appearance while also providing an anti-slip effect and making it more stable when placed.

[0032] Specifically, the top of the battery compartment 111 and the bottom of the inner cover 123 are provided with matching buckles 13, and the upper cover 12 and the base 11 are movably connected by the buckles 13.

[0033] In this embodiment, the buckle 13 is a common rotary buckle connection method on the market, which is fastened by rotating in the forward direction and separated by rotating in the reverse direction. This design makes the connection and separation of the base 11 and the top cover 12 simpler. The battery to be charged is placed inside the charging chamber 112, the top cover 12 and the base 11 are closed, and the battery can be charged by connecting the power supply interface and the mains power through the power cord. The decorative part 118 and the exterior of the top cover 121 are provided with anti-slip ripples, making it easier to disassemble and assemble the top cover 12 and the base 11.

[0034] Specifically, the battery compartment 111 is provided with a conductive terminal 1111 that is electrically connected to the main board 114, and the bottom of the lamp board 122 is integrated with a conductive terminal 124. The conductive terminal 1111 and the conductive terminal 124 are electrically connected.

[0035] In this embodiment, the second conductive terminal 124 is a spring 115 pin type. When the upper cover 12 and the base 11 are rotated and snapped together, the second conductive terminal 124 is aligned with the first conductive terminal 1111. The second conductive terminal 124 continuously abuts against the first conductive terminal 1111 through its elasticity, thereby achieving stable power supply. The main board 114 and the lamp board 122 are electrically connected through the first conductive terminal 1111 and the second conductive terminal 124.

[0036] In summary, the battery fixing structure of this charger utilizes the elastic arm 113 on the inner wall of the charging cavity 112 to continuously press against the battery through elastic deformation and rebound, forcing the battery to adhere tightly to the side wall of the charging cavity 112, reducing shaking and contact offset. This also prevents noise from the battery shaking inside the charging cavity 112 when carried around. Combined with the lifting effect of the pagoda-shaped spring, it achieves stable dual contact between the positive and negative terminals of the battery, greatly improving contact stability. The pagoda-shaped spring's initial flexibility and subsequent increased rigidity make battery installation easier, while its high rigidity after compression ensures continuous and stable pressure on the bottom of the battery, further enhancing stability.

[0037] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A charger battery fixing structure, comprising a charger body (1), characterized in that: The charger body (1) includes a base (11) and a top cover (12). The base (11) includes a battery compartment (111) with a plurality of charging chambers (112) inside. A spring arm (113) is provided on one side of the inner wall of the charging chamber (112). A main board (114) is provided at the bottom of the battery compartment (111). A spring (115) is provided on the top of the main board (114) corresponding to the plurality of charging chambers (112).

2. The charger battery fixing structure according to claim 1, characterized in that: A notch (116) is provided on one side of the inner wall of the charging cavity (112), and a bent piece (1161) is provided inside the notch (116) with one end extending into the interior of the charging cavity (112).

3. The charger battery fixing structure according to claim 1, characterized in that: The spring arm (113) is disposed on one end of the bending member (1161), and the spring arm (113) is disposed at an angle.

4. The charger battery fixing structure according to claim 1, characterized in that: The spring (115) is a pagoda-shaped spring.

5. The charger battery fixing structure according to claim 1, characterized in that: The spring (115) and the charging cavity (112) are arranged coaxially.

6. The charger battery fixing structure according to claim 1, characterized in that: The bottom of the battery compartment (111) is fitted with a bracket (117), and the inside of the bracket (117) is provided with limiting holes (1171) that correspond one-to-one with a number of springs (115).

7. The charger battery fixing structure according to claim 1, characterized in that: The upper cover (12) includes an upper shell (121) and a lamp plate (122) disposed inside the upper shell (121), and an inner cover (123) is disposed at the bottom of the lamp plate (122).

8. The charger battery fixing structure according to claim 1, characterized in that: The battery compartment (111) is covered with a decorative piece (118), and the bottom of the battery compartment (111) is also provided with a bottom cover (119).

9. The charger battery fixing structure according to claim 1, characterized in that: The top of the battery compartment (111) and the bottom of the inner cover (123) are provided with matching buckles (13), and the upper cover (12) and the base (11) are movably connected by the buckles (13).

10. A charger battery fixing structure according to claim 7, characterized in that: The battery compartment (111) is provided with a conductive terminal one (1111) that is electrically connected to the main board (114), and the bottom of the lamp board (122) is integrated with a conductive terminal two (124). The conductive terminal one (1111) and the conductive terminal two (124) are electrically connected.

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