Adapter plug

Abstract

This utility model relates to the field of lithium-ion battery application connections, and particularly to a converter plug, comprising: a conversion base, with an insulating plug for a first plug and an insulating socket for a second plug at both ends of the conversion base; the insulating plug comprising two separate insulating tubes, and two insulating cavities communicating with the two insulating tubes respectively within the insulating base; and two conductor adapters, each conductor adapter comprising a conductor tube and a conductor piece at both ends, the conductor tubes of the two conductor adapters being located within the two insulating tubes respectively. The conductor pieces of the body adapter are respectively located in the insulating cavity that communicates with the insulating tube where the conductor tube of the body adapter is located, and are close to the inner wall. The fixed parts of each of the conductor adapters are respectively connected to the insulating cavity and the insulating tube. Two conductor springs are respectively fixed in the two insulating cavities, close to the inner wall, and are respectively opposite to the conductor pieces of each of the conductor adapters. When the external plug is inserted into the insulating cavity, the external plug is in close contact with the conductor pieces and conductor springs. Under the squeezing action of the external plug, the conductor springs are elastically compressed and deformed.

Description

Technical Field

[0001] This utility model relates to the field of lithium-ion battery application connections, and in particular to an electrical connector and an electrical connection kit. Background Technology

[0002] As lithium-ion battery devices become more widely used and more and more devices use lithium-ion batteries, people's requirements for the connection devices between lithium-ion batteries and devices, and between batteries and chargers, are gradually increasing.

[0003] The inventors of this utility model discovered during the development of this invention that currently available battery pack male and female plugs are fixed pairings, meaning each male and female plug can only be used individually, resulting in limited versatility. Currently, the main method for converting between different plugs is by soldering wires between them, but these wire-soldered adapters are bulky and inconvenient to carry. Utility Model Content

[0004] One of the objectives of this utility model embodiment is to provide a converter plug, which enables the conversion between two plug series, facilitating the electrical connection of power supplies or electrical products.

[0005] In a first aspect, the present invention provides a converter plug, comprising:

[0006] The adapter base has an insulated plug for a first plug and an insulated socket for a second plug at its two ends.

[0007] The insulating plug comprises two separate insulating tubes.

[0008] The insulating base is provided with two insulating cavities that communicate with the two insulating tubes respectively;

[0009] The system comprises two conductor adapters, each with a conductor tube and a conductor plate at its two ends. The conductor tubes of the two adapters are located within two insulating tubes, and the conductor plates of each adapter are located within an insulating cavity that communicates with the insulating tube containing the conductor tube of the adapter, adhering tightly to the inner wall. The fixed portions of each adapter are connected to the insulating cavities and insulating tubes at their respective positions.

[0010] Two conductor springs are fixed inside the two insulating cavities respectively, close to the inner wall, and opposite to the conductor plates of each conductor adapter. When the external plug is inserted into the insulating cavity, the external plug is in close contact with the conductor plates and conductor springs. Under the squeezing action of the external plug, the conductor springs are elastically compressed and deformed.

[0011] Optionally, each of the two conductor springs includes a straight section at both ends and a curved section located between the two straight sections.

[0012] The two straight sections of each conductor spring are respectively attached and fixed to the inner wall of the insulating cavity.

[0013] The curved section protrudes from the cavity and is elastically deformable, and is opposite to the conductor piece of the second conductor adapter located in the same insulating cavity.

[0014] Optionally, at least one straight segment of each of the conductor springs is wider than the curved segment, extending beyond the two length edges of the curved segment.

[0015] On both sides of the slot for accommodating the conductor spring in each of the insulating cavities, there are also opposing lateral slots, in which the two length edges of the conductor spring, which are wider than the straight section of the curved section, are respectively engaged in the two lateral slots.

[0016] Optionally, on the outer sides of the two length edges of the curved section of each of the conductor springs, a straight edge separate from the length edge of the curved section is also provided.

[0017] The two straight edges are also respectively locked in the two lateral slots.

[0018] Optionally, an end slot is provided at the inner end of the slot in each of the insulating cavities, and the end of the straight section of each conductor spring located at the inner end of the insulating cavity is engaged in the end slot.

[0019] Optionally, the fixing part of each conductor adapter includes: at least two annular protrusions with an outer diameter larger than the conductor cannula, and an annular recess between any two of the annular protrusions, wherein each end face of each annular protrusion is a plane.

[0020] The colloid of the conversion base is injection molded together with the outer periphery and end face of each of the annular protrusions and annular recesses of each of the conductor adapters, and the colloid fills each of the annular recesses.

[0021] Optionally, a protrusion may be further provided on the outer periphery of each of the annular protrusions of each of the aforementioned conductor adapters.

[0022] The colloid of the conversion base is injection molded to the surface of the protrusion.

[0023] Optionally, one end face of each of the protrusions forms an acute angle with the axial direction of the conductor adapter.

[0024] Optionally, the two insulating tubes of the insulating plug have different shapes.

[0025] Optionally, the outer surface of the insulating socket is provided with anti-slip raised textures and / or anti-slip recesses perpendicular to the insertion / removal direction.

[0026] As can be seen from the above, when the two plugs are incompatible, the adapter plug of this embodiment can achieve electrical connection between the two plugs, improving the convenience of application. For example, the insulating socket of the adapter plug of this embodiment is an EC5 male plug adapted to an EC5 female plug, and the insulating socket is a TRX female plug adapted to a TRX male plug. In application scenarios where the current power supply output plug is an EC5 female plug, but the current electrical device's power input plug is not an EC5 male plug but a TRX male plug, it is impossible to charge the electrical device by plugging in the power supply using existing technology. However, by using the adapter plug of this embodiment, the power supply output plug and the power supply output plug are respectively plugged into the two ends of the adapter plug of this embodiment, which can achieve electrical connection between the power supply and the electrical device, and the power supply outputs current to the electrical device. This allows the power supply product to be compatible with electrical devices with power input plugs of EC5 male plugs or TRX male plugs, improving the application versatility of the power supply product.

[0027] For example, the power supply product can be equipped with two conversion bases for AB and AC, as described in this embodiment, so that the power supply product can be used with electrical equipment with three different plugs: A, B, and C.

[0028] In summary, applying the technical solution of this embodiment can improve the versatility of the product, expand its application scenarios, and enhance its market competitiveness. Attached Figure Description

[0029] The accompanying drawings, which are provided to further illustrate the present invention and form part of this application, do not constitute an undue limitation of the present invention.

[0030] Figure 1 , 2 A three-dimensional structural schematic diagram of the adapter provided in an embodiment of this utility model;

[0031] Figures 3-8 A schematic diagram of the main, rear, left, right, top, and bottom structures of the adapter provided in this embodiment of the utility model;

[0032] Figure 9 A schematic diagram of the AA cross-sectional structure of the adapter provided in this embodiment of the utility model;

[0033] Figure 10 An exploded view of the adapter provided in an embodiment of this utility model;

[0034] Figure 11 A schematic diagram of the connection structure between the adapter plug and the TRX male plug and the EC5 female plug provided in an embodiment of this utility model;

[0035] Figure 12 This is a cross-sectional view of the adapter plug provided in this embodiment of the present invention after being connected to the TRX male plug and the EC5 female plug.

[0036] 1: Conversion base; 11: Insulating cannula; 12: Insulating cavity; 13: Lateral slot;

[0037] 2: Conductor adapter; 21: Conductor cannula; twenty two: Conductor sheet; 23: Annular protrusion; 24: Protrusion; 25: Positioning notch;

[0038] 3: Conductor spring; 31: Straight section; 32: Bending section; 33： Straight edges;

[0039] 4: EC5 female connector; 5: TRX male connector; Detailed Implementation

[0040] The present invention will now be described in detail with reference to the accompanying drawings and specific embodiments. Here, the illustrative embodiments and descriptions of the present invention are used to explain the present invention, but are not intended to limit the present invention. Example

[0041] See Figures 1-12 As shown.

[0042] This embodiment provides a converter plug, which mainly includes a conversion base 1 made of insulating material, a two-conductor adapter 2, and two-conductor spring contacts 3. One of the two-conductor adapters 2 serves as the positive terminal and the other as the negative terminal.

[0043] The two ends of the conversion base 1 are an insulating plug adapted to the first plug and an insulating socket adapted to the second plug, respectively. The insulating plug includes two separate insulating tubes 11, and the insulating socket is provided with two insulating cavities 12 that are fully or partially connected to the cavities of the two insulating tubes 11 in the insulating plug.

[0044] Referring to the figure, this embodiment uses the design of an insulated plug and an insulated socket as an example, but it is not limited to this. For example, the conversion base 1 can also be designed in the shape of a "7" or other shapes.

[0045] The outer periphery of the conversion base 1 is provided with a handle for the user to hold and plug in, such as, but not limited to, the middle of the conversion base 1 and / or the outer periphery of the insulating socket.

[0046] Referring to the diagram, the insulated plug of this adapter is an insulated male plug that is compatible with EC5 female plug 4, including two insulated tubes 11 that are compatible with the shape of EC5 female plug 4. The two insulated tubes 11 have different shapes. For example, the insulated tube 11 that serves as the negative pole is cylindrical, while the insulated tube 11 that serves as the positive pole is cylindrical with a closed "U" cross-section.

[0047] Both conductor adapters 2 are made of highly conductive and rigid conductors. One of the two conductor adapters 2 serves as the positive terminal, and the other as the negative terminal. Their shapes can be, but are not limited to, identical, to reduce mold costs and increase the applicability of the components.

[0048] The structure of each conductor adapter 2 is as follows: the two ends of the conductor adapter 2 are respectively Conductor cannula 21, conductor plate 22 The structure located between the conductor tube 21 and the conductor plate 22 is a fixing part used to fix this conductor adapter 2 to the position between the insulating plug and the insulating socket of the conversion base 1. The conductor tube 21, fixing part and conductor plate 22 on each conductor adapter 2 are integrated structures to ensure low impedance.

[0049] When the conversion base 1 is injection molded from a gel, the two conductor adapters 2 of this embodiment can be pre-positioned in a predetermined position in the injection mold, so that during injection molding, the gel and the fixing part of the conductor adapter 2 fully contact and solidify together, and the two conductor adapters 2 are fixed inside the conversion base 1 during injection molding. The conductor tubes 21 of the two conductor adapters 2 are respectively located inside the two insulating tubes 11, and the conductor piece 22 at the other end of each conductor adapter 2 is respectively located in the insulating cavity 12 connected to the insulating tube 11 where the conductor tube 21 of the conductor adapter 2 is located, with the conductor piece 22 tightly attached to the inner wall of the insulating tube 11. One conductor adapter 2 is the positive electrode, with both ends connected to the positive electrodes of the two plugs respectively, and the other conductor adapter 2 is the negative electrode, with both ends connected to the negative electrodes of the two plugs respectively. This realizes the conversion between two mismatched first plugs and second plugs, achieving electrical connection.

[0050] As an illustration of this embodiment, it is also possible, but not limited to, ensuring that the outer wall of the conductor tube 21 of each conductor adapter 2 is in full contact with the adhesive on the inner wall of the insulating tube 11, and then injection molding them into a single unit. Alternatively, one side wall of the conductor piece 22 of each conductor adapter 2 can be in full contact with one inner wall of the insulating cavity 12, and then injection molding them into a single unit. This approach helps to enhance the stability of the connection between the conductor adapter 2 and the adapter base.

[0051] Two conductor springs 3 are respectively fixed inside two insulating cavities 12 at one end of the conversion base 1. Each conductor spring 3 is respectively attached to the inner wall of the insulating cavity 12 opposite to the conductor piece 22 located in the same insulating cavity 12. The gap between the conductor spring 3 and the conductor piece 22 is for the insertion of an external plug. When the second plug is connected to the insulating socket of this embodiment, the conductor plug on the second plug is inserted into the insulating cavity 12. The two sides of the conductor plug on the second plug are in close contact with the conductor piece 22 and the conductor spring 3 respectively. The conductor plug on the second plug squeezes the conductor spring 3, and the conductor spring 3 elastically compresses and deforms. The elastic deformation force makes the conductor plug on the second plug in close contact with the opposite conductor piece 22 and conductor spring 3, reducing the internal resistance of the connection and improving the reliability of the connection.

[0052] The two conductor springs 3 can be pre-placed in the injection mold of the conversion base 1 and combined with the inner wall of the two insulating tube cavities during injection molding. Alternatively, but not limited to, after the conversion base 1 with the two conductor adapters 2 pre-installed is obtained by injection molding, each conductor spring 3 of this embodiment can be inserted into the respective insulating tube cavity, so that each conductor spring 3 is locked and limited to the inner wall of each insulating tube cavity 12.

[0053] As can be seen from the above, when the two plugs are incompatible, the adapter plug of this embodiment can achieve electrical connection between the two plugs, improving the convenience of application. For example, the insulating socket of the adapter plug of this embodiment is an EC5 male plug adapted to EC5 female plug 4, and the insulating socket is a TRX female plug adapted to TRX male plug 5. In application scenarios where the current power supply output plug is EC5 female plug 4, but the current electrical device's power input plug is not an EC5 male plug but a TRX male plug 5, it is impossible to charge the electrical device by plugging in the power supply using existing technology; however, by using the adapter plug of this embodiment, the power supply output plug and the power supply output plug are respectively plugged into the two ends of the adapter plug of this embodiment, which can achieve electrical connection between the power supply and the electrical device, and the power supply outputs current to the electrical device, so that the power supply product can be adapted to electrical devices with power input plugs of EC5 male plug or TRX male plug 5, improving the application versatility of the power supply product.

[0054] For example, the power supply product is equipped with two conversion bases 1 for AB and AC, which are based on the structure described in this embodiment, so that the power supply product can be used with electrical equipment with three different plugs: A, B, and C.

[0055] In summary, applying the technical solution of this embodiment can improve the versatility of the product, expand its application scenarios, and enhance its market competitiveness.

[0056] As an illustration of this embodiment, this embodiment also provides a structure for a conductor spring 3. Each pair of conductor springs 3 includes a straight section 31 at both ends and a bent section 32 between the two straight sections 31. The two straight sections 31 of each conductor spring 3 are fixedly connected to the inner wall of the insulating cavity 12. The elastically deformable bent section 32 protrudes from the insulating cavity 12 and is opposite to the conductor piece 22 of the conductor adapter 2 located in the same insulating cavity 12. When connected to the second plug, the conductor insert inserted into the insulating cavity 12 is inserted between the bent section 32 and the conductor piece 22. The bent section 32 is squeezed to generate elastic deformation force, pressing the inserted conductor insert tightly against the conductor piece 22. The inserted conductor insert is tightly confined between the conductor piece 22 and the bent section 32 of the conductor spring 3. In this embodiment, the straight sections 31 at both ends of the conductor spring 3 and the inner wall of the insulating cavity 12 can be, but are not limited to, tightly attached together by adhesive, or connected together by matching snaps.

[0057] As an illustration of this embodiment, at least one straight segment 31 (such as the inner straight segment 31) of each conductor spring 3 is wider than the curved segment 32, and both length edges of the straight segment 31 extend beyond the two length edges of the curved segment 32.

[0058] Accordingly, each insulating cavity 12 is provided with two opposing lateral slots 13. The two length edges of the straight section 31 of the conductor spring 3 are respectively inserted into the lateral slots 13, and the bottom and top surfaces of the two straight edges 33 are confined within the lateral slots 13. This structure facilitates the assembly of the conductor spring 3 and prevents the conductor spring 3 from being displaced under pressure during elastic compression deformation, ensuring a tight fit to the inserted conductor plug and improving the reliability of the connection.

[0059] As an illustration of this embodiment, an end slot is provided at the innermost end of each insulating cavity 12. The end of the straight section 31 of each conductor spring 3 located at the innermost end of the insulating cavity 12 is inserted into the end slot and cannot move up, down, left or right, thereby improving the positioning stability of the conductor spring 3 and ensuring the electrical connection effect.

[0060] As an illustration of this embodiment, on the outer sides of the two length edges of the curved section 32 of each conductor spring 3, two straight edges 33, separate from the two length edges of the curved section 32, are also provided. When the two conductor springs 3 are inserted into the insulating cavity 12, the two straight edges 33 located on both sides of the curved section 32 are also respectively locked into the two side slots 13. This further enhances the positioning stability of the conductor springs 3 and ensures that the conductor springs 3 are not easily displaced when elastically compressed.

[0061] As an illustration of this embodiment, each conductor adapter 2 has at least two annular protrusions 23 with an outer diameter larger than that of the conductor cannula 21 in the middle part, and an annular recess between any two annular protrusions 23. Each end face of the annular protrusions 23 is planar, so that multiple stepped positions are formed between the conductor sheet 22 and the conductor cannula 21 of the conductor adapter 2, which can engage with the colloid of the conversion base 1. The colloid of the conversion base 1 is injection molded to be integrated with the outer periphery and end face of each annular protrusion 23 and annular recess of each conductor adapter 2. The colloid fills each annular recess, forming a structure in which the colloid of the conversion base 1 engages with the fixing part of the conductor adapter 2, thereby strengthening the stability of the conductor adapter 2 and preventing loosening due to force during insertion.

[0062] As an illustration of this embodiment, a protrusion 24 is further provided on the outer periphery of each annular protrusion 23 of each conductor adapter 2 to further form a step position that engages with the adhesive of the conversion base 1. One end face of the protrusion 24 may be, but is not limited to, an inclined surface at an acute angle to the axial direction, to further enhance the engagement strength with the adhesive of the conversion base 1 and improve the installation tightness of the conductor adapter 2.

[0063] As an illustration of this embodiment, each annular protrusion 23 of each conductor adapter 2 is also provided with a positioning notch 25, so that when each conductor adapter 2 is placed in the injection mold of the conversion base 1, the position of the conductor adapter 2 is positioned by the positioning notch 25, so as to ensure the accuracy of its installation position in the conversion base 1.

[0064] As an illustration of this embodiment, the outer wall of the insulating socket can be used as the handle of the conversion base 1. Anti-slip raised textures, anti-slip concave textures, or a combination of both can be provided on its surface perpendicular to the insertion and removal direction to improve the friction during insertion and removal and facilitate user use.

[0065] The embodiments described above do not constitute a limitation on the scope of protection of this technical solution. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the above embodiments should be included within the scope of protection of this technical solution.

Claims

1. A travel adapter, characterized in that it comprises: The adapter base has an insulated plug for a first plug and an insulated socket for a second plug at its two ends. The insulating plug comprises two separate insulating tubes. The insulating base is provided with two insulating cavities that communicate with the two insulating tubes respectively; The system comprises two conductor adapters, each with a conductor tube and a conductor plate at its two ends. The conductor tubes of the two adapters are located within two insulating tubes, and the conductor plates of each adapter are located within an insulating cavity that communicates with the insulating tube containing the conductor tube of the adapter, adhering tightly to the inner wall. The fixed portions of each adapter are connected to the insulating cavities and insulating tubes at their respective positions. Two conductor springs are fixed inside the two insulating cavities respectively, close to the inner wall, and opposite to the conductor plates of each conductor adapter. When the external plug is inserted into the insulating cavity, the external plug is in close contact with the conductor plates and conductor springs. Under the squeezing action of the external plug, the conductor springs are elastically compressed and deformed.

2. The adapter plug according to claim 1, characterized in that, Each of the two conductor springs includes a straight section at both ends and a curved section located between the two straight sections. The two straight sections of each conductor spring are respectively attached and fixed to the inner wall of the insulating cavity. The curved section protrudes from the cavity and is elastically deformable, and is opposite to the conductor piece of the second conductor adapter located in the same insulating cavity.

3. The adapter plug according to claim 2, characterized in that, At least one straight segment of each of the said conductor springs is wider than the curved segment, extending beyond the two length edges of the curved segment. On both sides of the slot for accommodating the conductor spring in each of the insulating cavities, there are also opposing lateral slots, in which the two length edges of the conductor spring, which are wider than the straight section of the curved section, are respectively engaged in the two lateral slots.

4. The adapter plug according to claim 3, characterized in that, On the outer sides of the two length edges of the curved section of each of the aforementioned conductor springs, a straight edge separate from the length edges of the curved section is also provided. The two straight edges are also respectively locked in the two lateral slots.

5. The adapter plug according to claim 3, characterized in that, An end slot is provided at the inner end of the slot in each of the insulating cavities, and the end of the straight section of each conductor spring located at the inner end of the insulating cavity is locked in the end slot.

6. The adapter plug according to claim 1, characterized in that, The fixing part of each conductor adapter includes: at least two annular protrusions with an outer diameter larger than the conductor cannula, and an annular recess between any two of the annular protrusions, wherein each end face of each annular protrusion is a plane. The colloid of the conversion base is injection molded together with the outer periphery and end face of each of the annular protrusions and annular recesses of each of the conductor adapters, and the colloid fills each of the annular recesses.

7. The adapter plug according to claim 6, characterized in that, A protrusion is further provided on the outer periphery of each of the annular protrusions of the aforementioned conductor adapters. The colloid of the conversion base is injection molded to the surface of the protrusion.

8. The adapter plug according to claim 7, characterized in that, One end face of each of the protrusions forms an acute angle with the axial direction of the conductor adapter.

9. The adapter plug according to claim 1, characterized in that, The two insulating tubes of the insulating plug have different shapes.

10. The adapter plug according to claim 1, characterized in that, The outer surface of the insulating socket is provided with anti-slip raised textures and / or anti-slip recessed textures perpendicular to the insertion and removal direction.

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