An adapter plug for a charger

Abstract

This utility model discloses an adapter plug for a charger, belonging to the field of charger technology. The utility model includes a charger assembly and an adapter plug assembly. The charger assembly includes a charger body with pins and protrusions inside. A recessed hole is formed on the charger body. The adapter plug assembly is snap-fitted onto the charger assembly. The adapter plug assembly includes an adapter plug body with a metal piece installed inside. Slots are formed on both sides of the adapter plug body. A spring-loaded locking assembly is provided inside the adapter plug, and the spring-loaded locking assembly includes a locking body. Through the cooperation of the charger assembly, the adapter plug assembly, and the spring-loaded locking assembly, the locking structure of the adapter plug can reliably lock the adapter plug to the charger, preventing easy separation by the user. This avoids the risk of electric shock to the user if the plug and charger accidentally separate during charging, thus greatly increasing product safety.

Description

Technical Field

[0001] This utility model relates to the field of charger technology, specifically to an adapter plug for chargers. Background Technology

[0002] Currently, most chargers on the market can be used with voltage in various regions around the world. However, since each country has different plug structures, users cannot directly use chargers when traveling abroad.

[0003] This led to the development of interchangeable adapter plugs. Users only need to equip themselves with adapter plugs for different national standards to charge their electronic products normally. However, these adapter plugs also have drawbacks. Structurally, since most plugs on the market are designed to be used with Chinese or American standard chargers to achieve conversion, the International Electrotechnical Commission and some countries have banned the sale of this type of adapter plug and charger due to safety risks. They stipulate that only adapter plugs with more than one disassembly function can be allowed to be sold. Utility Model Content

[0004] The purpose of this utility model is to provide an adapter plug for a charger. Through the cooperation of the charger assembly, the adapter plug assembly and the spring-type locking assembly, the locking structure of the adapter plug can securely lock the adapter plug and the charger together, making it difficult for the user to separate them. This avoids the risk of electric shock to the user when the plug and the charger are accidentally separated during charging, thereby greatly increasing the safety of the product. When the user separates the adapter plug, more than one action is required to separate it from the charger.

[0005] This utility model is achieved through the following technical solution:

[0006] This utility model relates to an adapter plug for a charger, comprising a charger assembly and an adapter plug assembly. The charger assembly includes a charger body, which contains pins and protrusions. The charger body has recessed holes. The adapter plug assembly is snapped onto the charger assembly. The adapter plug assembly includes an adapter plug body, which contains a metal piece. The adapter plug body has slots on both sides. A spring-type locking assembly is provided inside the adapter plug. The spring-type locking assembly includes a locking body, which has a latching protrusion on one side. A spring is sleeved on the locking body, and a locking tongue is provided at the bottom of the locking body.

[0007] Furthermore, the pin makes contact with the metal plate to conduct electricity.

[0008] Furthermore, the protrusion slides into the slot.

[0009] Furthermore, the recessed hole and the latch tongue cooperate to form a latch.

[0010] Furthermore, the spring-loaded latch assembly achieves automatic locking via a spring, requiring the operation of the latch protrusion to unlock. In the locked state, the spring is in a naturally extended state, driving the latch tongue to engage with the recessed hole.

[0011] This utility model has the following beneficial effects:

[0012] This invention utilizes a charger assembly, an adapter plug assembly, and a spring-loaded locking assembly. The locking structure of the adapter plug securely locks the adapter plug to the charger, preventing easy separation by the user. This avoids the risk of electric shock to the user should the plug and charger accidentally separate during charging, greatly increasing product safety. Users must perform more than one action to detach the adapter plug from the charger. Furthermore, the adapter plug assembly's structural coupling with the charger is not based on Chinese or American standard plugs, and users can only use chargers compatible with the matching adapter plug. This avoids the safety risks associated with using chargers with non-safe designs, complying with necessary regulations while simultaneously enhancing product safety.

[0013] Of course, any product implementing this utility model does not necessarily need to achieve all of the advantages described above at the same time. Attached Figure Description

[0014] Figure 1 A schematic diagram of the charger assembly, adapter plug assembly, and spring-loaded locking assembly;

[0015] Figure 2 This is a schematic diagram of the charger assembly.

[0016] Figure 3 A schematic diagram of the adapter plug assembly and the spring-loaded locking assembly;

[0017] Figure 4 An exploded view of the adapter plug assembly and the spring-loaded locking assembly;

[0018] Figure 5 This is a schematic diagram of the back structure of the charger assembly.

[0019] In the diagram: 1. Charger assembly; 101. Charger body; 102. Pin; 103. Protrusion; 104. Recessed hole; 2. Adapter plug assembly; 201. Adapter plug body; 202. Metal piece; 203. Slot; 3. Spring-loaded latch assembly; 301. Lock body; 302. Latch protrusion; 303. Spring; 304. Lock tongue. Detailed Implementation

[0020] 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.

[0021] Please see Figure 1-5 This utility model provides a technical solution: an adapter plug for a charger, including a charger assembly 1 and an adapter plug assembly 2. The charger assembly 1 includes a charger body 101, in which a pin 102 and a protrusion 103 are disposed. The pin 102 is conductively contacting a metal piece 202, and the end of the pin 102 is connected to the internal circuit of the charger. The exposed front end is conductively contacting the metal piece 202 in the adapter plug assembly 2. The pin 102 is rectangular in shape. A recessed hole 104 is provided on the charger body 101, which cooperates with a locking tongue 304 to form a lock. The opening shape of the recessed hole 104 matches the opening shape of the locking tongue 304. The adapter plug assembly 2 is snapped onto the charger assembly 1. The adapter plug assembly 2 includes an adapter plug body 201, in which a metal piece 202 is installed. The end of the metal piece 202 integrates a conical spring structure to clamp the pin 102 to ensure a low-resistance connection. The adapter plug body 201 has slots 203 on both sides, and protrusions 103 slide in the slots 203. The slots 203 and protrusions 103 slide in each other. The structure of the slots 203 is different from the flat pin slots of the Chinese standard (GB1002) and the round pin holes of the American standard (UL498), and belongs to a non-standard coupling design. The adapter plug has a spring-type locking assembly 3 inside, and a guide groove is opened through the inside of the adapter plug body 201. The spring-type locking assembly 3 is installed inside the guide groove. To ensure that the movement is linear only in the insertion and removal direction, the spring-type locking assembly 3 includes a locking body 301, a latching protrusion 302 on one side of the locking body 301, a spring 303 sleeved on the locking body 301, and a locking tongue 304 at the bottom of the locking body 301. The spring-type locking assembly 3 achieves automatic locking through the spring 303, and can only be unlocked by operating the latching protrusion 302. When locked, the spring 303 is in a naturally extended state, driving the locking tongue 304 to engage with the recessed hole 104.

[0022] First, connect the power supply to the electrical equipment in this device. Place the device in the designated working position. During assembly, the protrusion 103 slides into the slot 203, the pin 102 contacts the metal piece 202, and the locking tongue 304 automatically engages in the recessed hole 104 under the natural extension of the spring 303 to achieve locking. When separating, the user needs to press the latch protrusion 302 inward to compress the spring 303, which will cause the locking tongue 304 to disengage from the recessed hole 104. Then, pull out the adapter plug along the direction of the slot 203.

[0023] The preferred embodiments of this utility model disclosed above are merely illustrative of the present utility model. These preferred embodiments do not exhaustively describe all details, nor do they limit the utility model to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of this utility model, thereby enabling those skilled in the art to better understand and utilize it. This utility model is limited only by the claims and their full scope and equivalents.

Claims

1. An adapter plug for a charger, comprising a charger assembly (1) and an adapter plug assembly (2), characterized in that: The charger assembly (1) includes a charger body (101), in which a pin (102) and a protrusion (103) are provided. A recessed hole (104) is provided on the charger body (101). The adapter plug assembly (2) is snapped onto the charger assembly (1). The adapter plug assembly (2) includes an adapter plug body (201), in which a metal piece (202) is installed. Slots (203) are provided on both sides of the adapter plug body (201). A spring-type locking assembly (3) is provided inside the adapter plug. The spring-type locking assembly (3) includes a locking body (301), in which a latching protrusion (302) is provided on one side of the locking body (301). A spring (303) is sleeved on the locking body (301). A locking tongue (304) is provided at the bottom of the locking body (301).

2. The adapter plug for a charger according to claim 1, wherein The pin (102) is in contact with the metal sheet (202) and conducts electricity.

3. The adapter plug for a charger according to claim 1, wherein The protrusion (103) slides on the slot (203).

4. The adapter plug for a charger according to claim 1, wherein The recessed hole (104) and the latch tongue (304) cooperate to form a latch.

5. The adapter plug for a charger according to claim 4, wherein The spring-type latch assembly (3) is automatically locked by a spring (303) and can only be unlocked by operating the latch protrusion (302). When locked, the spring (303) is in a naturally extended state, driving the latch tongue (304) to engage with the recessed hole.

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