A battery charger with a charge stabilization structure

By employing magnetic connection and foolproof design, the problem of insufficient electrode fit in battery chargers has been solved, achieving stable electrical connection and user-friendly wireless charging functionality, thus enhancing the product's competitiveness.

CN224481496UActive Publication Date: 2026-07-10SHENZHENXINGRUITONGTECHNOLOGY CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
SHENZHENXINGRUITONGTECHNOLOGY CO LTD
Filing Date
2025-08-07
Publication Date
2026-07-10

AI Technical Summary

Technical Problem

In existing battery chargers, the contact between the electrode plates and the battery is not tight enough, causing some batteries to fail to receive power normally, which affects user experience and product competitiveness.

Method used

It adopts a magnetic connection structure, which ensures that the positive and negative terminals of the battery are tightly matched with the electrode plates through the cooperation of the charging spring pin and the charging pin. The foolproof design prevents reverse insertion. Combined with wireless charging and heat dissipation structure, it improves the stability of electrical connection and user experience.

Benefits of technology

It achieves a stable electrical connection for the battery charger, ensuring a tight fit between the positive and negative terminals of the battery, preventing reverse insertion, and improving user experience and product competitiveness.

✦ Generated by Eureka AI based on patent content.

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Abstract

This utility model provides a battery charger with a stable charging structure, including a charger body and a charging compartment cover. The charging compartment cover houses an upper charging plate, an upper electrical connector, and multiple upper connecting magnets. The charger body has a lower electrical connector and multiple battery placement slots. The charging compartment cover has multiple upper mounting positions. The upper charging plate has multiple charging spring pins. The charger body houses a lower charging plate and multiple lower connecting magnets. The lower charging plate has multiple charging pins. The charging spring pins and charging pins are respectively located at the upper and lower ends of the battery. The advantages are: through magnetic connection, installation is quick and easy. Under the action of the magnetic connection, the charging spring pins continuously apply elastic force to the battery in the battery placement slot, ensuring that the positive and negative terminals of the battery can be tightly fitted with the charging spring pins and charging pins respectively, guaranteeing electrical connection matching, meeting user needs, and improving product competitiveness.
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Description

Technical Field

[0001] This utility model relates to the field of laser cutting device technology, specifically to a battery charger with a stable charging structure. Background Technology

[0002] With the development of society, in order to achieve portability and ensure a certain service life, electronic products are equipped with rechargeable batteries. Nickel-metal hydride batteries are a common type of high-performance battery, and their long lifespan makes them increasingly popular.

[0003] The high-frequency use of batteries requires repeated charging with a battery charger. Existing battery chargers, including a charging compartment cover and a charger body, typically contain multiple charging compartments. Most chargers use positive and negative electrode plates at the top and bottom of the charging compartment, with one electrode plate located on the charging compartment cover. When the cover is closed, both the top and bottom of the battery contact the electrode plate, allowing the battery to be charged. However, because the charging compartment cover is connected to the charger body via a hinge on one side, repeated rotation over time, combined with manufacturing tolerances of the hinge, can easily lead to insufficient tightness between the upper and lower electrode plates and the battery after the cover is closed. This can result in some batteries failing to charge properly, failing to meet user experience requirements and hindering product competitiveness. Utility Model Content

[0004] To address the problems in the prior art, this utility model provides a battery charger with a stable charging structure, which solves the problem of insufficient tightness in the contact between the upper and lower electrode plates and the battery in the prior art.

[0005] This utility model discloses a battery charger with a stable charging structure, comprising a charger body and a charging compartment cover. The charging compartment cover is provided with an upper charging plate, an upper electrical connector, and multiple upper connecting magnets. The charger body is provided with a lower electrical connector and multiple battery placement slots. The charging compartment cover is provided with multiple upper mounting positions that mate with the battery placement slots. The upper charging plate is provided with multiple charging spring pins, which are respectively disposed in corresponding upper mounting positions. The charger body is provided with a lower charging plate and multiple lower connecting magnets. The upper charging plate can achieve electrical connection with the lower charging plate through the cooperation of the upper and lower electrical connectors. The lower charging plate is provided with multiple charging pins that mate with the charging spring pins, which are respectively disposed in corresponding battery placement slots. The charging spring pins and charging pins are respectively disposed at the upper and lower ends of the battery. The multiple upper connecting magnets mate with the multiple lower connecting magnets. The magnetic connection between the charging compartment cover and the charger body allows the charging spring pins to be compressed by the battery.

[0006] This utility model is further improved by providing a foolproof groove in the upper mounting position that matches the positive terminal of the battery. The foolproof groove prevents the negative terminal of the battery from contacting the charging spring pin.

[0007] This utility model is further improved by providing a foolproof protrusion at the lower end of the foolproof groove.

[0008] This utility model is further improved by having an upper power connection member as an upper power connection post on the upper charging plate and a lower power connection member as a lower connecting plate. The lower connecting plate is electrically connected to the lower charging plate. The lower connecting plate is provided with a lower connecting pin that cooperates with the upper power connection post. The upper power connection post is located on the side of the charging compartment cover facing the charger body, and the lower connecting pin is located on the upper end of the charger body and on the side of the battery placement slot.

[0009] This utility model is further improved by providing a positioning boss on the main body of the charger, a positioning wall that cooperates with the positioning boss on the charging compartment cover, the positioning wall being located on the outside of the positioning boss, an anti-foolproof slot being provided on the side of the positioning boss, and an anti-foolproof block that cooperates with the anti-foolproof slot being provided on the positioning wall.

[0010] This utility model is further improved by providing a charging interface on the upper charging plate and a charging hole in the charging compartment cover that mates with the charging interface, with the charging interface located in the charging hole.

[0011] This utility model is further improved by providing a wireless charging coil inside the charger body, and the wireless charging coil is located at the lower end of the charger body and is electrically connected to the lower charging board.

[0012] This utility model is further improved by providing heat dissipation holes on the charger body that cooperate with the wireless charging coil.

[0013] This utility model is further improved, the charging compartment cover includes a compartment cover shell and a compartment cover inner support. The inner wall of the compartment cover shell is provided with a guide protrusion and a snap-fit ​​block. The compartment cover inner support is provided with a snap-fit ​​groove and a guide groove. The guide protrusion is disposed in the guide groove and the snap-fit ​​block is disposed in the snap-fit ​​groove.

[0014] Compared with the prior art, the beneficial effects of this utility model are as follows: This utility model provides a battery charger with a stable charging structure. By adopting this structure, it can effectively solve the problem of low tightness between the upper and lower electrode plates and the battery in the prior art battery chargers. Through magnetic connection, it ensures quick installation. Under the action of magnetic connection, the charging spring pin continuously applies elastic force to the battery in the battery placement slot, so that the positive and negative terminals of the battery can be tightly fitted with the charging spring pin and the charging pin respectively, ensuring electrical connection matching, meeting the user's needs, and improving the product's competitiveness. Attached Figure Description

[0015] To more clearly illustrate the solutions in this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0016] Figure 1 A schematic diagram of the overall structure of a battery charger with a stable charging structure;

[0017] Figure 2 This is a schematic diagram of the charging case cover structure;

[0018] Figure 3 Here are schematic diagrams of the charging case cover structure;

[0019] Figure 4 This is a schematic diagram of the main structure of the charger;

[0020] Figure 5 This is a schematic diagram of the exploded structure of the charger body. Detailed Implementation

[0021] Unless otherwise defined, all technical and scientific terms used in this invention have the same meaning as commonly understood by one of ordinary skill in the art. The terminology used in this specification is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The terms "comprising" and "having," and any variations thereof, in the specification, claims, and accompanying drawings are intended to cover non-exclusive inclusion. The terms "first," "second," etc., in the specification, claims, and accompanying drawings are used to distinguish different objects, not to describe a particular order.

[0022] In this invention, the reference to "embodiment" means that a specific feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this invention. The appearance of this phrase in various places in the specification does not necessarily refer to the same embodiment, nor is it a mutually exclusive, independent, or alternative embodiment to other embodiments. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described in this invention can be combined with other embodiments.

[0023] To enable those skilled in the art to better understand the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings.

[0024] like Figure 1-5As shown, this utility model discloses a battery charger with a stable charging structure, including a charger body 1 and a charging compartment cover 2. The charging compartment cover 2 is provided with an upper charging plate 3, an upper electrical connector 31, and multiple upper connecting magnets 4. The charger body 1 is provided with a lower electrical connector 5 and multiple battery placement slots 11. The charging compartment cover 2 is provided with multiple upper mounting positions that mate with the battery placement slots 11 one by one. The upper charging plate 3 is provided with multiple charging spring pins 32, which are respectively disposed in the corresponding upper mounting positions. The charger body 1 is provided with a lower charging plate 6 and multiple lower connecting magnets 7. The upper charging plate 3 can be electrically connected to the lower charging plate 6 through the upper electrical connector 31 and the lower electrical connector 5. The lower charging plate 6 is provided with multiple charging pins 61 that mate with the charging spring pins 32, which are respectively disposed in the corresponding battery placement slots 11. The charging spring pins 32 and the charging pins 61 are respectively disposed at the upper and lower ends of the battery 10. The multiple upper connecting magnets 4 and the multiple lower connecting magnets 7 mate with each other one by one.

[0025] The magnetic connection ensures quick installation. Under the action of the magnetic connection, the charging spring pin 32 continuously applies an elastic force to the battery 10 in the battery placement slot 11, so that the positive and negative terminals of the battery 10 can be tightly matched with the charging spring pin 32 and the charging pin 61 respectively, ensuring electrical connection matching, meeting the user's needs, and improving the product's competitiveness.

[0026] The upper mounting position is provided with a foolproof groove 201 that matches the positive terminal of the battery 10. The foolproof groove 201 can prevent the negative terminal of the battery 10 from contacting the charging spring pin 32.

[0027] With the setting of the foolproof groove 201, the charging spring pin 32 can only be contacted when the positive terminal of the battery 10 is facing upwards and the top frustum of the positive terminal of the battery 10 is set in the foolproof groove 201.

[0028] The lower end of the anti-foolproof groove 201 is provided with an anti-foolproof protrusion 202. With the setting of the anti-foolproof protrusion 202, when the battery 10 is inserted in reverse, the negative terminal of the battery 10, together with the anti-foolproof protrusion 202, can lift up the charging case cover 2, so that the battery 10 cannot be charged.

[0029] The power-on connector 31 is a power-on connector post set on the upper charging plate 3, and the power-off connector 5 is a lower connecting plate. The lower connecting plate is electrically connected to the lower charging plate 6. The lower connecting plate is provided with a lower connecting pin that cooperates with the power-on connector post. The power-on connector post is set on the side of the charging compartment cover 2 facing the charger body 1, and the lower connecting pin is set on the upper end of the charger body 1 and on the side of the battery placement slot 11.

[0030] By setting up the upper connecting post and the lower connecting pin, the upper connecting post and the lower connecting pin can achieve contact electrical connection when installing the charging compartment cover 2.

[0031] The charger body 1 is provided with a positioning boss 101, and the charging compartment cover 2 is provided with a positioning wall that cooperates with the positioning boss 101. The positioning wall is located on the outside of the positioning boss 101. The side of the positioning boss 101 is provided with a foolproof slot 103, and the positioning wall is provided with a foolproof block 211 that cooperates with the foolproof slot 103.

[0032] The cooperation of the anti-foolproof slot 103 and the anti-foolproof block 211 can prevent users from installing the charging case cover 2 in the wrong direction.

[0033] The upper charging plate 3 is provided with a charging interface, and the charging compartment cover 2 is provided with a charging hole that mates with the charging interface, with the charging interface located in the charging hole.

[0034] The charger body 1 is also equipped with a wireless charging coil, which is located at the lower end of the charger body 1 and is electrically connected to the lower charging plate 6.

[0035] By setting up a wireless charging coil, the user experience can be effectively improved. Users can choose to use the charging port for wired charging or use the wireless charging coil for wireless charging.

[0036] The charger body 1 is provided with heat dissipation holes 102 that cooperate with the wireless charging coil. The heat dissipation holes 102 can effectively assist the wireless charging coil in heat dissipation.

[0037] The charging case cover 2 includes a case cover outer shell 21 and a case cover inner support 22. The inner wall of the case cover outer shell 21 is provided with a guide protrusion 210 and a snap-fit ​​block 211. The case cover inner support 22 is provided with a snap-fit ​​groove 220 and a guide groove 221. The guide protrusion 210 is disposed in the guide groove 221 and the snap-fit ​​block 211 is disposed in the snap-fit ​​groove 220.

[0038] The cooperation of the guide groove 221 and the guide protrusion 210 makes the installation of the inner bracket 22 of the bin cover more stable, and the cooperation of the snap-fit ​​groove 220 and the snap-fit ​​block 211 makes the disassembly and assembly between the inner bracket 22 of the bin cover and the outer shell 21 of the bin cover more efficient.

[0039] An extension boss 222 for mounting the upper connecting magnet 4 is provided on the inner support 22 of the charging compartment cover. The upper connecting magnet 4 is disposed in the extension boss 222. By setting the extension boss 222, when the charging compartment cover 2 is installed, the lower end of the extension boss 222 is attached to the upper end surface of the charger body 1, so that the upper connecting magnet 4 is as close as possible to the lower connecting magnet 7, thereby improving the stability of the magnetic connection.

[0040] As can be seen from the above, the beneficial effects of this utility model are: it can effectively solve the problem of poor tightness between the upper and lower electrode plates and the battery 10 in the existing battery charger. By using magnetic connection, it ensures quick installation. Under the action of magnetic connection, the charging spring pin 32 continuously applies elastic force to the battery 10 in the battery placement slot 11, so that the positive and negative terminals of the battery 10 can be tightly fitted with the charging spring pin 32 and the charging pin 61 respectively, ensuring electrical connection matching, meeting the user's needs, and improving the competitiveness of the product.

[0041] The specific embodiments described above are preferred embodiments of this utility model, and are not intended to limit the specific scope of this utility model. The scope of this utility model includes but is not limited to the specific embodiments described above. All equivalent changes made in accordance with this utility model are within the protection scope of this utility model.

Claims

1. A battery charger with a charging stability structure, characterized in that: The charger includes a main body and a charging compartment cover. The charging compartment cover contains an upper charging plate, an upper power connector, and multiple upper connecting magnets. The main body has a lower power connector and multiple battery placement slots. The charging compartment cover has multiple upper mounting positions that mate with each of the battery placement slots. The upper charging plate has multiple charging spring pins, each positioned in a corresponding upper mounting position. The main body contains a lower charging plate and multiple lower connecting magnets. The upper charging plate can be electrically connected to the lower charging plate via the upper and lower power connectors. The lower charging plate has multiple charging pins that mate with the charging spring pins, each positioned in a corresponding battery placement slot. The charging spring pins and charging pins are located at the top and bottom ends of the battery, respectively. The multiple upper and lower connecting magnets mate with each other. The magnetic connection between the charging compartment cover and the main body allows the charging spring pins to be compressed by the battery.

2. The battery charger with a stable charging structure according to claim 1, characterized in that: The upper mounting position is provided with a foolproof groove that mates with the positive terminal of the battery. The foolproof groove prevents the negative terminal of the battery from contacting the charging spring pin.

3. The battery charger with a stable charging structure according to claim 2, characterized in that: The lower end of the anti-foolproof groove is provided with an anti-foolproof protrusion.

4. The battery charger with a charging stability structure according to claim 1, characterized in that: The power-on connector is a power-on connector post disposed on the upper charging plate, and the power-off connector is a lower connecting plate. The lower connecting plate is electrically connected to the lower charging plate. The lower connecting plate is provided with a lower connecting pin that cooperates with the power-on connector post. The power-on connector post is disposed on the side of the charging compartment cover facing the charger body, and the lower connecting pin is disposed on the upper end of the charger body and on the side of the battery placement slot.

5. The battery charger with a charging stability structure according to claim 1, characterized in that: The charger body is provided with a positioning boss, the charging compartment cover is provided with a positioning wall that cooperates with the positioning boss, the positioning wall is located outside the positioning boss, the side of the positioning boss is provided with a foolproof slot, and the positioning wall is provided with a foolproof block that cooperates with the foolproof slot.

6. The battery charger with a charging stability structure according to claim 1, characterized in that: The upper charging plate is provided with a charging interface, and the charging compartment cover is provided with a charging hole that mates with the charging interface, with the charging interface located in the charging hole.

7. The battery charger with a charging stability structure according to claim 6, characterized in that: The charger body is also equipped with a wireless charging coil, which is located at the lower end of the charger body and is electrically connected to the lower charging plate.

8. The battery charger with a charging stability structure according to claim 7, characterized in that: The charger body is provided with heat dissipation holes that cooperate with the wireless charging coil.

9. The battery charger with a charging stability structure according to any one of claims 1-8, characterized in that: The charging compartment cover includes a cover shell and a cover inner support. The inner wall of the cover shell is provided with a guide protrusion and a snap-fit ​​block. The cover inner support is provided with a snap-fit ​​groove and a guide groove. The guide protrusion is disposed in the guide groove, and the snap-fit ​​block is disposed in the snap-fit ​​groove.