charging plug

Abstract

The application relates to the technical field of chargers, in particular to a charging plug and a charger. The charging plug comprises a body, a first plug piece, a second plug piece and an electromagnetic assembly. The first plug piece comprises a first section and a second section which are separately arranged, and a connecting block which is slidably arranged in the body. An elastic member is connected to the connecting block. In a natural state, the connecting block is in a first state of being separated from the first section and the second section. By driving the connecting block to slide from the first state to a second state of being connected to the first section and the second section at the same time, the elastic restoring force generated by the elastic member has a tendency of making the connecting block slide from the second state to the first state. The electromagnetic assembly comprises a coil and a timing switch for controlling the energization time length of the coil. The coil generates a magnetic attraction force which is greater than the elastic restoring force of the elastic member in an energization state. The charging plug avoids the charger being in a conduction state for a long time.

Description

Technical Field

[0001] This application relates to the field of charger technology, and more particularly to a charging plug. Background Technology

[0002] A charger is generally a device that converts alternating current (AC) into low-voltage direct current (DC). Chargers have a wide range of applications, especially in daily life, where they are widely used in common electrical appliances such as mobile phones and cameras. In applications where batteries serve as the primary or backup power source, chargers have broad application prospects.

[0003] The inventors discovered that the existing technology has at least the following problems: because the charging plug of a mobile phone charger contains electrical components, if the charging head is in a charging state for a long time, it will overheat and cause safety accidents. Summary of the Invention

[0004] In order to solve the above-mentioned technical problems and provide a charging plug that can prevent the charger from being in a conductive state for a long time, and solve the technical problem of excessive heat caused by the charging head being in a charging state for a long time, this application provides the following technical solution.

[0005] In a first aspect, embodiments of this application provide a charging plug, which includes a body, a first insert, a second insert, and an electromagnetic assembly, wherein:

[0006] The first insert includes a first segment and a second segment that are separately disposed, and a connecting block that is slidably disposed within the body. An elastic element is connected to the connecting block. In its natural state, the connecting block is in a first state that is separated from the first segment and the second segment. By driving the connecting block to slide from the first state to a second state that is simultaneously connected to the first segment and the second segment, the elastic restoring force generated by the elastic element has a tendency to make the connecting block slide from the second state to the first state.

[0007] The electromagnetic component includes a coil and a timer switch that controls the duration of the coil's energization. When the coil is energized, it generates a magnetic attraction force on the connecting block that is greater than the elastic restoring force of the elastic element.

[0008] Furthermore, a button is connected to the connecting block, with one end of the button located outside the main body. By pressing the button, the connecting block can be driven to slide from the first state to the second state.

[0009] Furthermore, one end of the first segment is fixed inside the main body, and the other end extends out of the main body for insertion into a socket, while the second segment is located inside the main body.

[0010] Furthermore, the connecting block is made of a magnetically conductive material or a magnetically attracted block made of a magnetically conductive material is fixed on the connecting block.

[0011] Furthermore, the two ends of the coil are respectively connected to the first and second inserts, and the timing switch is configured to start the timing function after receiving an electrical signal.

[0012] Furthermore, a transformer element is provided on the power supply line of the coil.

[0013] Furthermore, an iron core is provided inside the coil.

[0014] Furthermore, one end of the elastic element is connected to the body, and the other end is connected to the connecting block; or

[0015] When a button is provided, one end of the elastic element is connected to the body, and the other end is connected to the button; or

[0016] When a magnetic block is provided, one end of the elastic element is connected to the body, and the other end is connected to the magnetic block.

[0017] Furthermore, the elastic element is a helical spring.

[0018] In a first aspect, embodiments of this application provide a charger, which includes the charging plug provided in the first aspect of this application.

[0019] Compared with the prior art, the above-mentioned technical solution provided in this application has the following advantages: When charging, the connecting block of the first plug is set to the second state, the first plug is in the current conducting state, and it is fixed in the second state by the electromagnetic component. After the timing time of the timer switch is completed, the electromagnetic component releases the connecting block, the connecting block is reset to the first state, and the current in the first plug is no longer conducting, thereby avoiding the charger being in the conducting state for a long time. Attached Figure Description

[0020] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments consistent with the invention and, together with the description, serve to explain the principles of the invention.

[0021] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, those skilled in the art can obtain other drawings based on these drawings without creative effort.

[0022] Figure 1 This is a schematic diagram of the structure of a charging plug in the prior art;

[0023] Figure 2 A schematic diagram of the structure of the charging plug provided in the embodiment of this application with the connecting block in the first state;

[0024] Figure 3 This is a schematic diagram of the charging plug provided in an embodiment of this application when the connecting block is in a second state.

[0025] In the picture:

[0026] 1. Body; 2. First insert; 201. First segment; 202. Second segment; 203. Connecting block; 3. Second insert; 4. Electromagnetic assembly; 401. Coil; 402. Timer switch; 403. Transformer element; 404. Iron core; 5. Elastic element; 6. Button; 7. Magnetic block. Detailed Implementation

[0027] To enable those skilled in the art to better understand the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present application, and not all embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative effort should fall within the scope of protection of the present application.

[0028] It should be noted that the terms "first," "second," etc., in the specification, claims, and accompanying drawings of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate for the embodiments of this application described herein. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion; for example, a process, method, system, product, or apparatus that comprises a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to such processes, methods, products, or apparatus.

[0029] In this application, the terms "upper," "lower," "inner," "middle," "outer," "front," and "rear," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. These terms are primarily for the purpose of better describing this application and its embodiments, and are not intended to limit the indicated device, element, or component to having a specific orientation, or to be constructed and operated in a specific orientation.

[0030] Furthermore, in addition to indicating location or positional relationship, some of the aforementioned terms may also have other meanings. For example, the term "above" may also be used in some cases to indicate a certain dependency or connection relationship. Those skilled in the art can understand the specific meaning of these terms in this application based on the specific circumstances.

[0031] Furthermore, the terms "set up," "connect," and "fix" should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral structure; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, or it can be an internal connection between two devices, components, or parts. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0032] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other.

[0033] Figure 1 A schematic diagram of the structure of a charging plug in the prior art is given. Figure 2 and Figure 3 A schematic diagram of the charging plug provided in an embodiment of this application is given.

[0034] like Figure 1 As shown, the charging plug in the prior art includes a body 1′ and a plug 2′. One end of the plug 2′ extends out of the body 1′ for insertion into an external socket, and the other end of the plug 2′ is located inside the body 1′ for connection to a charging cable via electrical components. Figure 1 The charging plugs in the prior art shown contain electrical components. If the charging plug is in a charging state for a long time, it may cause excessive heat and lead to safety accidents.

[0035] To solve the above-mentioned technical problems, such as Figure 2 and Figure 3 As shown, the charging plug includes a body 1, a first insert 2, a second insert 3, and an electromagnetic component 4. The body serves as a carrier for the other components of the charging plug. The first insert 2 and the second insert 3 are both fixed on the body. One end of the first insert 2 and the second insert 3 extends out of the body for insertion into an external socket. The other end of the first insert 2 and the second insert 3 are located inside the body and connected to the electrical components of the charging plug.

[0036] The main difference between this embodiment and the prior art is that the first insert 2 includes a first segment 201 and a second segment 202 that are separately disposed, and a connecting block 203 that is slidably disposed within the body 1. An elastic element 5 is connected to the connecting block 203. In its natural state, the connecting block 203 is in a first state that is separated from the first segment 201 and the second segment 202. By driving the connecting block 203 to slide from the first state to a second state that is simultaneously connected to the first segment 201 and the second segment 202, the elastic restoring force generated by the elastic element 5 has a tendency to make the connecting block 203 slide from the second state to the first state. In the first state, the first segment 201 and the second segment 202 of the first plug 2 are separated. Even if the first plug 2 and the second plug 3 are inserted into a powered socket, the circuit inside the charging plug is still open, and the electrical load cannot be charged. In the second state, the first segment 201, the connecting block 203 and the second segment 202 of the first plug 2 are connected in sequence. When the first plug 2 and the second plug 3 are inserted into a powered socket, the circuit inside the charging plug will be closed, and the electrical load can be charged.

[0037] The main body also includes an electromagnetic component 4, which comprises a coil 401 and a timer switch 402 that controls the energization duration of the coil 401. When energized, the coil 401 generates a magnetic attraction force on the connecting block 203 that is greater than the elastic restoring force of the elastic element 5. Through the magnetic attraction of the coil 401, the restoring effect of the elastic element 5 when the connecting block 203 is in the second state can be overcome, allowing the connecting block 203 to remain in the second state without returning to the first state. At this time, the circuit inside the charging plug is in a conductive state. The timer switch is used to control the energization duration of the coil 401, that is, to control the time for the connecting block 203 to remain in the second state, ultimately determining the duration for which the circuit inside the charging plug is in a conductive state.

[0038] The specific usage method of the charging plug in this embodiment can be referred to as follows: Insert the first plug 2 and the second plug 3 of the charging plug into the external socket. Drive the connecting block 203 from the first state position to the second state position by external force. During this process, the external force will overcome the elastic restoring force generated by the deformation of the elastic element 5. At the same time, the coil 401 is energized, the timer switch remains in the connected state and starts timing. At this time, under the magnetic attraction of the coil 401, the connecting block 203 remains in the second state, and the internal circuit of the charging plug is in the conductive state. When the timer switch finishes timing, it will disconnect the circuit. At this time, the magnetic attraction of the coil 401 disappears, and the connecting block 203 slides from the second state position to the first state position under the elastic restoring force of the elastic element 5. The internal circuit of the charging plug is in the open circuit state.

[0039] like Figure 2 and Figure 3As shown, in some embodiments, a button 6 is connected to the connecting block 203, with one end of the button 6 located outside the body 1. Pressing the button 6 drives the connecting block 203 to slide from the first state to the second state. The button 6 is designed for user convenience, allowing the connecting block 203 to slide within the body 1 simply by pressing it. It should be noted that the body 1 is provided with space and a limiting structure for the sliding and displacement of the connecting block 203 and the button 6, enabling the connecting block 203 to slide and displace along a preset direction under the action of a driving force. For example, a groove matching the shape of the connecting block 203 can be provided within the body 1. Preferably, as... Figure 2 and 3 As shown, the part of button 6 located outside the body 1 forms an enlarged end. On the one hand, the enlarged end can be easily pressed during use. On the other hand, the enlarged end can abut against the outer surface of the body 1 after button 6 is pressed, playing a final limiting role. Of course, the limiting structure can also be set in other ways, as long as it can realize that the connecting block 203 can only slide between the first state and the second state.

[0040] As an optional implementation, in order to enable the magnetic attraction force generated by the coil 401 to attract the connecting block 203, the connecting block 203 is preferably made of a magnetizable material, such as iron, cobalt, nickel or their alloys. Of course, the material of the connecting block 203 should prioritize ensuring the conductivity of the connecting block 203.

[0041] As an optional implementation, in order to achieve the magnetic attraction force generated by coil 401 to attract connecting block 203, such as... Figure 2 and Figure 3 As shown, a magnetic block 7 made of a magnetizable material is fixed on the connecting block 203. The magnetizable material includes, but is not limited to, iron, cobalt, nickel and their alloys.

[0042] To increase the magnetic attraction of coil 401, such as Figure 2 As shown, an iron core 404 is provided inside the coil 401. It should be noted that, in order to avoid a short circuit between the connecting block 203 and the coil 401, it should be ensured that when the connecting block 203 is in the second state, the connecting block 203 or the magnetic block 7 is not in contact with the coil 401 or the iron core 404.

[0043] In some embodiments, such as Figure 2 and Figure 3As shown, the two ends of the coil 401 are connected to the first connector 2 and the second connector 3, respectively. The timer switch 402 is configured to start the timing function upon receiving an electrical signal. With this configuration, when the user presses the connecting block 203 from the first state to the second state using button 6, the circuit inside the charging plug is connected. At this time, the timer switch 402, connected to the first connector 2 and the second connector 3, receives the electrical signal, turns on, and starts the timing function. The coil 401 generates a magnetic force, keeping the connecting block 203 in the second state, thus maintaining the normal operation of the charging plug. In this embodiment, the timing duration of the timer switch 402 can be set as needed, and the specific setting and adjustment interface can be located on the surface of the main body 1. To achieve better performance and safety requirements, a transformer element 403 is provided on the power supply line of the coil 401 to adjust the voltage between the two ends of the coil 401.

[0044] In this embodiment, the specific arrangement of the elastic element 5 is not specifically limited. It is sufficient that, in its natural state, the connecting block 203 is in the first state, and in the second state, the elastic restoring force generated by the elastic element 5 can drive the connecting block 203 to slide from the second state to the first state. Optionally, one end of the elastic element 5 is connected to the body 1, and the other end is connected to the connecting block 203; optionally, if a button 6 is provided, one end of the elastic element 5 is connected to the body 1, and the other end is connected to the button 6; optionally, if a magnetic block 7 is provided, one end of the elastic element 5 is connected to the body 1, and the other end is connected to the magnetic block 7. Furthermore, the specific form of the elastic element 5 is also not specifically limited, and includes, but is not limited to, a coil spring.

[0045] The charging plug according to the above embodiments may also include other necessary components or structures, and the corresponding arrangement and connection relationships can be referred to the charging plug structure in the prior art. The connection relationships, operation and working principles of the unmentioned structures are known to those skilled in the art and will not be described in detail here.

[0046] This invention also discloses a charger, which includes the charging plug described in the above embodiments. The charger of this invention can charge electronic products such as mobile phones, computers, and cameras. Since the charging plug is a specific solution disclosed above, the charger with this charging plug also has all the technical effects of the above embodiments, and will not be described in detail here. The charger according to the above embodiments may also include other necessary components or structures, and the corresponding arrangement and connection relationships can refer to the charger structures in the prior art. The connection relationships, operation, and working principles of the undescribed structures are known to those skilled in the art and will not be described in detail here.

[0047] Some embodiments in this specification are described in a progressive manner. Each embodiment focuses on the differences from other embodiments, and the same or similar parts between the embodiments can be referred to each other.

[0048] The above are merely specific embodiments of the present invention, enabling those skilled in the art to understand or implement the invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the invention. Therefore, the invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features claimed herein.

Claims

1. A charging plug, characterized in that, It includes a main body (1), a first insert (2), a second insert (3), and an electromagnetic assembly (4), wherein: The first insert (2) includes a first segment (201) and a second segment (202) that are separately disposed, and a connecting block (203) that is slidably disposed in the body (1). An elastic element (5) is connected to the connecting block (203). In its natural state, the connecting block (203) is in a first state that is separated from the first segment (201) and the second segment (202). By driving the connecting block (203) to slide from the first state to a second state that is simultaneously connected to the first segment (201) and the second segment (202), the elastic restoring force generated by the elastic element (5) has a tendency to make the connecting block (203) slide from the second state to the first state. One end of the first segment (201) is fixed in the body (1), and the other end extends out of the body (1) for insertion into a socket. The second segment (202) is located in the body (1). The connecting block (203) is made of a magnetic material and has electrical conductivity. The electromagnetic component (4) includes a coil (401) and a timer switch (402) that controls the duration of the coil (401) being energized. When the coil (401) is energized, it generates a magnetic attraction force on the connecting block (203) that is greater than the elastic restoring force of the elastic element (5). A button (6) is connected to the connecting block (203). One end of the button (6) is located outside the body (1). By pressing the button (6), the connecting block (203) can be driven to slide from the first state to the second state. The part of the button (6) located outside the body (1) forms an enlarged end. The two ends of the coil (401) are connected to the first plug (2) and the second plug (3) respectively, and the timing switch (402) is configured to turn on and start the timing function after receiving an electrical signal.

2. The charging plug according to claim 1, characterized in that, A magnetic block (7) made of magnetically conductive material is fixed on the connecting block (203).

3. The charging plug according to claim 1, characterized in that, A transformer element (403) is provided on the power supply line of the coil (401).

4. The charging plug according to claim 1, characterized in that, The coil (401) contains an iron core (404).

5. The charging plug according to any one of claims 1-4, characterized in that, One end of the elastic element (5) is connected to the body (1), and the other end is connected to the connecting block (203); or When the button (6) is set, one end of the elastic element (5) is connected to the body (1), and the other end is connected to the button (6); or When the magnetic block (7) is provided, one end of the elastic member (5) is connected to the body (1), and the other end is connected to the magnetic block (7).

6. The charging plug according to claim 5, characterized in that, The elastic element (5) is a helical spring.

7. A charger, characterized in that, Includes the charging plug as described in any one of claims 1-6.

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