Cylindrical sodium ion battery structure with USB charging structure

Abstract

The utility model relates to a cylindrical sodium-ion battery structure with a USB (Universal Serial Bus) charging structure, which belongs to the field of sodium-ion batteries and comprises a cylindrical sodium-ion battery body and a charging kit, the charging kit comprises a kit shell and a lower cover, a conduction plate is fixedly arranged at the lower end of the kit shell, a mounting cavity is defined by the conduction plate and the inner side wall of the kit shell, the sodium ion battery body is mounted in the mounting cavity, and a conduction part is arranged in the middle of the top end of the kit shell; the lower cover is in a cylinder shape with an opening in the upper end, is mounted on the conduction plate through a connecting structure and is conducted with the conduction plate; a charging module is further arranged on the lower surface of the conduction plate, the charging module comprises a charging circuit and a charging interface, and the charging circuit is communicated with the conduction part and the conduction plate through wires; the bottom end of the lower cover is provided with a window for exposing the charging interface corresponding to the charging interface. The use convenience of the cylindrical sodium ion battery structure can be improved.

Description

Technical Field

[0001] The utility model relates to the field of sodium-ion batteries, and particularly to a cylindrical sodium-ion battery structure with a USB charging structure. Background Art

[0002] A sodium-ion battery is a secondary battery (rechargeable battery) that mainly operates by the movement of sodium ions between the positive electrode and the negative electrode, and has a working principle similar to that of a lithium-ion battery.

[0003] Sodium-ion batteries are generally fixedly installed in devices and can be charged through a charging circuit and a charging structure integrated on the devices, which is convenient to use. However, it usually takes a certain amount of time to fully charge a sodium-ion battery. Therefore, for electronic devices that need to be continuously used for a long time, integrating the battery into the device will cause certain troubles to the use of the electronic device. Therefore, such electronic devices usually adopt a detachable battery structure. However, detachable batteries generally require a dedicated charger for charging. When the electronic device is carried out and used, the dedicated charger also needs to be carried, which causes certain inconvenience to the use of the electronic device.

[0004] Based on this, the utility model provides a cylindrical sodium-ion battery structure with a USB charging structure, so that the sodium-ion battery can be charged through a conventional USB charging cable, achieving the purpose of facilitating its use. Summary of the Utility Model

[0005] Based on this, it is necessary to provide a cylindrical sodium-ion battery structure with a USB charging structure, including a cylindrical sodium-ion battery body and a charging kit; the charging kit includes a sleeve and a lower cover, the sleeve is in the shape of a cylinder with an open bottom end, a conducting plate is fixedly arranged at the lower end of the sleeve, an installation cavity is formed by enclosing the conducting plate and the inner side wall of the sleeve, the sodium-ion battery body is installed in the installation cavity, and the negative electrode of the sodium-ion battery body abuts against the conducting plate and is electrically connected to the conducting plate. A conducting part is arranged at the middle position of the top end of the sleeve, the conducting part abuts against and is electrically connected to the positive electrode of the cylindrical sodium-ion battery body, and the conducting part extends upward out of the sleeve; the lower cover is made of a conductive material and is in the shape of a cylinder with an open top end, and the outer diameter of the lower cover is the same as the outer diameter of the sleeve. The lower cover is installed on the conducting plate through a connecting structure and is electrically connected to the conducting plate; a charging module is further arranged on the lower surface of the conducting plate, the charging module is located inside the lower cover, the charging module includes a mounting seat fixedly arranged on the lower surface of the conducting plate, a cavity is formed inside the mounting seat, a circuit board integrated with a charging circuit and a charging interface is fixedly arranged in the cavity, the charging interface is arranged downward and its lower end extends to be flush with the lower surface of the mounting seat, the charging circuit is connected to the conducting part through a positive electrode wire buried in the sleeve, and the charging circuit is further connected to the conducting plate through a negative electrode wire passing through the mounting seat; a window for exposing the charging interface is opened at the bottom end of the lower cover corresponding to the charging interface.

[0006] In the present utility model, the charging function of the cylindrical sodium-ion battery body is realized by the charging kit sleeved thereon. Among them, after the cylindrical sodium-ion battery body is placed in the installation cavity, its positive electrode and negative electrode are respectively in conductive contact with the conducting part and the conducting plate. At this time, the cylindrical sodium-ion battery body will be connected to the charging circuit. By inserting a conventional USB charging cable into the charging structure, the charging of the cylindrical sodium-ion battery body can be realized. Compared with charging the cylindrical sodium-ion battery using a dedicated charger, when the present utility model is carried out and used outside, there is no need to carry a dedicated charger, which can effectively improve the convenience of the charging process and make the use of the cylindrical sodium-ion battery structure more convenient.

[0007] Further, when the lower cover is installed on the conducting plate, the upper end cover of the lower cover abuts against the lower end of the sleeve.

[0008] In the present utility model, when the lower cover is installed on the conducting plate, there is no gap between the upper end of the lower cover and the lower end of the sleeve, which can avoid the appearance of a gap in the middle position of the cylindrical sodium-ion battery structure, making it integrally cylindrical and increasing its aesthetic property.

[0009] Furthermore, the outer edge of the top end of the lower cover extends upward to form a mounting ring, and the lower surface of the conduction plate is provided with a fixed inner ring corresponding to the mounting ring, and the outer side wall of the fixed inner ring is arranged in contact with the inner side wall of the mounting ring; the top end of the inner side wall of the mounting ring protrudes inward to form an annular flange, and the outer side wall of the fixed inner ring is provided with an annular groove corresponding to the annular flange, and the annular flange is embedded in the annular groove.

[0010] In the present invention, the connection structure between the lower cover and the conductive plate is composed of a mounting ring on the lower cover and a fixed inner ring on the conductive plate. The lower cover is connected to the conductive plate by embedding the annular flange on the top mounting ring into the annular groove on the fixed inner ring of the conductive portion. Therefore, after the lower cover is connected to the conductive plate, it can be rotated relative to the conductive plate. By rotating the lower cover until the window on it is staggered with the charging interface, a certain protection effect can be played on the charging interface to prevent foreign objects from falling into the charging interface.

[0011] Furthermore, a limiting notch is provided on the annular flange, and a first limiting protrusion and a second limiting protrusion are provided in the annular groove corresponding to the limiting notch for being embedded in the limiting notch. When the first limiting protrusion is embedded in the limiting notch, the window on the lower cover exposes the charging interface, and when the second limiting protrusion is embedded in the limiting notch, the window on the lower cover is staggered from the charging interface.

[0012] In the present utility model, the first limiting protrusion and the second limiting protrusion are both used to be embedded in the limiting notch to fix the relative position of the lower cover and the conduction plate. Therefore, the cylindrical sodium ion battery structure can maintain the position of the lower cover when the window on the lower cover leaks out or the charging interface is staggered, thereby preventing the normal use of the cylindrical sodium ion battery structure from being affected by changes in the relative position of the window and the charging interface during use.

[0013] Furthermore, the sleeve includes an upper shell and a lower shell arranged above and below, the outer edge of the lower end of the upper shell extends downward to form a first connecting tube, the inner side wall of the first connecting tube is provided with a first connecting thread, the upper end of the lower shell is provided with a second connecting tube corresponding to the first connecting tube, the outer side wall of the second connecting tube is provided with a second connecting thread matching the first connecting thread, and the first connecting tube and the second connecting tube are connected to each other through the connection of the first connecting thread and the second connecting thread.

[0014] In the present utility model, the upper housing and the lower housing are fixedly connected to each other through a threaded connection structure between the first connecting cylinder and the second connecting cylinder thereon, that is, the upper housing and the lower housing are detachably connected. By disassembling the upper housing and the lower housing, the sodium-ion battery body therein can be taken out, so that the sodium-ion battery body can be replaced when the sodium-ion battery body cannot be used, realizing the reuse of the charging kit.

[0015] Further, a first conduction ring is fixedly arranged at the lower end of the upper housing, and a second conduction ring is fixedly arranged at the top end of the second connecting cylinder corresponding to the first conduction ring. The first conduction ring and the second conduction ring are in conductive contact with each other; the positive electrode wire includes an upper end portion buried in the upper housing and a lower end portion buried in the lower housing. The upper end of the upper end portion is connected to the conduction portion, and its lower end extends to the lower end of the upper housing and is connected to the first conduction ring; the lower end of the lower end portion is connected to the charging circuit, and its upper end extends to the upper end of the lower housing and is connected to the second conduction ring.

[0016] In the present utility model, when the upper housing and the lower housing are connected together through a threaded connection structure, the first conduction ring and the second conduction ring thereon will be pressed together. At this time, the first conduction ring and the second conduction ring will conduct electricity with each other, so that the upper end portion and the lower end portion of the positive electrode wire conduct electricity with each other, ensuring that the sodium-ion battery body can be connected to the charging circuit.

[0017] Further, the surface of the sodium-ion battery structure is coated with an insulating film, and the insulating film is provided with openings corresponding to the conduction portion and the bottom of the lower cover for exposing the conduction portion and the bottom of the lower cover.

[0018] In the present utility model, the insulating film coated on the surface of the sodium-ion battery structure can play a protective role for the sodium-ion battery structure.

[0019] The principle and effect of the present utility model will be further described below in combination with the above technical solutions and the drawings:

[0020] In the present utility model, the charging function of the cylindrical sodium-ion battery body is realized by the charging kit sleeved thereon. After the cylindrical sodium-ion battery body is placed in the installation cavity, its positive electrode and negative electrode are respectively in conductive contact with the conduction portion and the conduction plate. At this time, the cylindrical sodium-ion battery body will be connected to the charging circuit. By inserting a conventional USB charging cable into the charging structure, the charging of the cylindrical sodium-ion battery body can be realized. Compared with charging the cylindrical sodium-ion battery using a dedicated charger, when the present utility model is carried out and used, there is no need to carry a dedicated charger, which can effectively improve the convenience of the charging process and make the use of the cylindrical sodium-ion battery structure more convenient. Description of the Drawings

[0021] Figure 1 Structural schematic diagram of the cylindrical sodium-ion battery structure with a USB charging structure according to an embodiment of the present invention;

[0022] Figure 2 Bottom view structural schematic diagram of the lower cover according to an embodiment of the present invention;

[0023] Figure 3 Explosion structural schematic diagram of the cylindrical sodium-ion battery structure with a USB charging structure according to an embodiment of the present invention;

[0024] Figure 4 is Figure 3 Cross-sectional structural schematic diagram;

[0025] Figure 5 is Figure 3 Partial enlarged view of part A in;

[0026] Figure 6 is Figure 3 Partial enlarged view of part B in;

[0027] Figure 7 is Figure 3 Partial enlarged view of part C in.

[0028] Reference numerals

[0029] 1 - sleeve, 11 - upper shell, 12 - lower shell, 2 - lower cover, 21 - opening window, 22 - mounting ring, 221 - annular flange, 3 - conduction part, 4 - conduction plate, 41 - fixed inner ring, 411 - annular groove, 412 - first limiting protrusion, 5 - mounting seat, 61 - upper end part, 62 - lower end part. Detailed implementation manners

[0030] For the convenience of those skilled in the art to understand, the present invention will be further described in detail below in conjunction with the drawings and embodiments:

[0031] Such as Figures 1-7, A cylindrical sodium-ion battery structure with a USB charging structure, comprising a cylindrical sodium-ion battery body and a charging kit; the charging kit includes a housing 1 and a lower cover 2, the housing 1 is made of an insulating material, and the lower cover 2 is made of a conductive material; the housing 1 is in the shape of a cylinder with an open lower end, a conducting plate 4 is fixedly arranged at the lower end of the housing 1, and an installation cavity is formed by the conducting plate 4 and the inner side wall of the housing 1. The sodium-ion battery body is installed in the installation cavity, and the negative electrode of the sodium-ion battery body abuts against the conducting plate 4 and is electrically connected to the conducting plate 4. A conducting part 3 is arranged at the middle position of the top end of the housing 1, the conducting part 3 abuts against and is electrically connected to the positive electrode of the cylindrical sodium-ion battery body, and the conducting part 3 extends upward out of the housing 1; the lower cover 2 is in the shape of a cylinder with an open upper end, and the outer diameter of the lower cover 2 is the same as the outer diameter of the housing. The lower cover 2 is installed on the conducting plate 4 through a connecting structure and is electrically connected to the conducting plate 4; a charging module is further arranged on the lower surface of the conducting plate 4, the charging module is located inside the lower cover 2, the charging module includes a mounting seat 5 fixedly arranged on the lower surface of the conducting plate 4, a cavity is formed in the mounting seat 5, a circuit board integrated with a charging circuit and a charging interface is fixedly arranged in the cavity, the charging interface is arranged downward and its lower end extends to be flush with the lower surface of the mounting seat 5, the charging circuit is connected to the conducting part 3 through a positive electrode wire buried in the housing 1, and the charging circuit is further connected to the conducting plate 4 through a negative electrode wire passing through the mounting seat 5; a window 21 for exposing the charging interface is opened at the bottom end of the lower cover 2 corresponding to the charging interface.

[0032] In the present utility model, the charging function of the cylindrical sodium-ion battery body is realized by the charging kit sleeved thereon. Among them, after the cylindrical sodium-ion battery body is placed in the installation cavity, its positive electrode and negative electrode are respectively in conductive contact with the conducting part 3 and the conducting plate 4. At this time, the cylindrical sodium-ion battery body will be connected to the charging circuit. By inserting a conventional USB charging cable into the charging structure, the charging of the cylindrical sodium-ion battery body can be realized. Compared with charging the cylindrical sodium-ion battery using a dedicated charger, when the present utility model is carried out and used, there is no need to carry a dedicated charger, which can effectively improve the convenience of the charging process and make the use of the cylindrical sodium-ion battery structure more convenient.

[0033] In one embodiment, when the lower cover 2 is installed on the conducting plate 4, the upper end cover of the lower cover 2 abuts against the lower end of the housing 1.

[0034] In this embodiment, when the lower cover 2 is installed on the conducting plate 4, there is no gap between the upper end of the lower cover 2 and the lower end of the housing 1, which can prevent a gap from appearing in the middle position of the cylindrical sodium-ion battery structure, making its overall shape cylindrical and increasing its aesthetic appearance.

[0035] In one embodiment, the outer edge of the top end of the lower cover 2 extends upward to form a mounting ring 22. A fixed inner ring 41 is provided on the lower surface of the conduction plate 4 corresponding to the mounting ring 22, and the outer side wall of the fixed inner ring 41 is attached to the inner side wall of the mounting ring 22; the top end of the inner side wall of the mounting ring 22 bulges inward to form an annular flange 221, and an annular groove 411 is formed on the outer side wall of the fixed inner ring 41 corresponding to the annular flange 221, and the annular flange 221 is embedded in the annular groove 411.

[0036] In this embodiment, the connection structure between the lower cover 2 and the conduction plate 4 is composed of the mounting ring 22 on the lower cover 2 and the fixed inner ring 41 on the conduction plate 4. The lower cover 2 is connected to the conduction plate 4 by embedding the annular flange 221 on its top mounting ring 22 into the annular groove 411 on the fixed inner ring 41 of the conduction part 3; therefore, after the lower cover 2 is connected to the conduction plate 4, it can rotate relative to the conduction plate 4. By rotating the lower cover 2 until the window 21 on it is staggered from the charging interface, it can play a certain protective role for the charging interface and prevent foreign objects from falling into the charging interface.

[0037] In one embodiment, a limiting notch is further formed on the annular flange 221, and a first limiting protrusion 412 and a second limiting protrusion for being embedded in the limiting notch are provided in the annular groove 411 corresponding to the limiting notch. When the first limiting protrusion 412 is embedded in the limiting notch, the window 21 on the lower cover 2 exposes the charging interface, and when the second limiting protrusion is embedded in the limiting notch, the window 21 on the lower cover 2 is staggered from the charging interface.

[0038] In this embodiment, both the first limiting protrusion 412 and the second limiting protrusion are used to be embedded into the limiting notch to fix the relative positions of the lower cover 2 and the conduction plate 4. Therefore, when the window 21 on the lower cover 2 exposes or is staggered from the charging interface in the cylindrical sodium-ion battery structure, the position of the lower cover 2 can be maintained, so that during use, it can prevent the normal use of the cylindrical sodium-ion battery structure from being affected due to the change of the relative position between the window 21 and the charging interface.

[0039] In one embodiment, the housing 1 includes an upper housing 11 and a lower housing 12 arranged up and down. The outer edge of the lower end of the upper housing 11 extends downward to form a first connecting cylinder, and a first connecting thread is provided on the inner side wall of the first connecting cylinder. A second connecting cylinder is provided at the upper end of the lower housing 12 corresponding to the first connecting cylinder, and a second connecting thread matching the first connecting thread is provided on the outer side wall of the second connecting cylinder. The first connecting cylinder and the second connecting cylinder are connected to each other through the connection of the first connecting thread and the second connecting thread.

[0040] In this embodiment, the upper housing 11 and the lower housing 12 are fixedly connected to each other through a threaded connection structure between the first connecting cylinder and the second connecting cylinder thereon, that is, the upper housing 11 and the lower housing 12 are detachably connected. By disassembling the upper housing 11 and the lower housing 12, the sodium-ion battery body therein can be taken out, so that the sodium-ion battery body can be replaced when the sodium-ion battery body cannot be used, realizing the reuse of the charging kit.

[0041] In one embodiment, a first conduction ring is fixedly arranged at the lower end of the upper housing 11, and a second conduction ring is fixedly arranged at the top of the second connecting cylinder corresponding to the first conduction ring. The first conduction ring and the second conduction ring are conductively connected in contact with each other; the positive electrode wire includes an upper end portion 61 buried in the upper housing 11 and a lower end portion 62 buried in the lower housing 12. The upper end of the upper end portion 61 is connected to the conduction portion 3, and its lower end extends to the lower end of the upper housing 11 and is connected to the first conduction ring; the lower end of the lower end portion 62 is connected to the charging circuit, and its upper end extends to the upper end of the lower housing 12 and is connected to the second conduction ring.

[0042] In this embodiment, when the upper housing 11 and the lower housing 12 are connected together through a threaded connection structure, the first conduction ring and the second conduction ring thereon will be pressed together. At this time, the first conduction ring and the second conduction ring will be conductively connected to each other, so that the upper end portion 61 and the lower end portion 62 of the positive electrode wire are conductively connected to each other, ensuring that the sodium-ion battery body can be connected to the charging circuit.

[0043] In one embodiment, the surface of the sodium-ion battery structure is coated with an insulating film, and the insulating film is provided with openings corresponding to the conduction portion 3 and the bottom of the lower cover 2 for exposing the conduction portion 3 and the bottom of the lower cover 2.

[0044] In this embodiment, the insulating film coated on the surface of the sodium-ion battery structure can protect the sodium-ion battery structure.

[0045] The above embodiments only represent several implementation manners of the present invention. The description is relatively specific and detailed, but it should not be construed as a limitation to the scope of the utility model patent. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present invention, several deformations and improvements can still be made, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the utility model patent shall be subject to the appended claims.

Claims

1. A cylindrical sodium-ion battery structure with a USB charging structure, characterized in that, It includes a cylindrical sodium-ion battery body and a charging kit; the charging kit includes a housing and a lower cover. The housing is in the shape of a cylinder with an open bottom end. A conducting plate is fixedly arranged at the lower end of the housing. The conducting plate and the inner side wall of the housing enclose an installation cavity. The sodium-ion battery body is installed in the installation cavity, and the negative electrode of the sodium-ion battery body abuts against the conducting plate and is electrically connected to the conducting plate. A conducting part is arranged at the middle position of the top end of the housing. The conducting part abuts against and is electrically connected to the positive electrode of the cylindrical sodium-ion battery body, and the conducting part extends upward out of the housing; the lower cover is made of a conductive material and is in the shape of a cylinder with an open top end, and the outer diameter of the lower cover is the same as that of the housing. The lower cover is installed on the conducting plate through a connecting structure and is electrically connected to the conducting plate; a charging module is further arranged on the lower surface of the conducting plate. The charging module is located inside the lower cover. The charging module includes a mounting seat fixedly arranged on the lower surface of the conducting plate. A cavity is formed inside the mounting seat. A circuit board integrated with a charging circuit and a charging interface is fixedly arranged inside the cavity. The charging interface is arranged downward and its lower end extends to be flush with the lower surface of the mounting seat. The charging circuit is connected to the conducting part through a positive electrode wire buried in the housing. The charging circuit is also connected to the conducting plate through a negative electrode wire passing through the mounting seat; a window for exposing the charging interface is opened at the bottom end of the lower cover corresponding to the charging interface.

2. The cylindrical sodium-ion battery structure with a USB charging structure according to claim 1, characterized in that, When the lower cover is installed on the conducting plate, the upper end cover of the lower cover abuts against the lower end of the housing.

3. A cylindrical sodium-ion battery structure with a USB charging structure according to claim 2, characterized in that, The outer edge at the top end of the lower cover extends upward to form a mounting ring. A fixed inner ring is arranged on the lower surface of the conducting plate corresponding to the mounting ring. The outer side wall of the fixed inner ring is arranged to fit the inner side wall of the mounting ring; the top end of the inner side wall of the mounting ring bulges inward to form a circular flange. A circular groove is opened on the outer side wall of the fixed inner ring corresponding to the circular flange. The circular flange is embedded in the circular groove.

4. A cylindrical sodium-ion battery structure with a USB charging structure according to claim 3, characterized in that, A limiting notch is further opened on the circular flange. A first limiting protrusion and a second limiting protrusion for being embedded in the limiting notch are arranged in the circular groove corresponding to the limiting notch.

5. A cylindrical sodium-ion battery structure with a USB charging structure according to claim 1 or 3, characterized in that, The housing includes an upper housing and a lower housing arranged up and down. The outer edge at the lower end of the upper housing extends downward to form a first connecting cylinder. A first connecting thread is arranged on the inner side wall of the first connecting cylinder. A second connecting cylinder is arranged at the upper end of the lower housing corresponding to the first connecting cylinder. A second connecting thread matching the first connecting thread is arranged on the outer side wall of the second connecting cylinder. The first connecting cylinder and the second connecting cylinder are connected to each other through the connection of the first connecting thread and the second connecting thread.

6. A cylindrical sodium-ion battery structure with a USB charging structure according to claim 5, characterized in that, A first conduction ring is fixedly arranged at the lower end of the upper shell body. A second conduction ring is fixedly arranged at the top end of the second connection cylinder corresponding to the first conduction ring. The first conduction ring and the second conduction ring are in conductive contact with each other. The positive electrode wire includes an upper end portion buried in the upper shell body and a lower end portion buried in the lower shell body. The upper end of the upper end portion is connected to the conduction portion, and its lower end extends to the lower end of the upper shell body and is connected to the first conduction ring. The lower end of the lower end portion is connected to the charging circuit, and its upper end extends to the upper end of the lower shell body and is connected to the second conduction ring.

7. A cylindrical sodium-ion battery structure with a USB charging structure according to claim 1, characterized in that, The surface of the sodium ion battery structure is coated with an insulating film, and the insulating film is provided with openings corresponding to the conduction portion and the bottom of the lower cover for exposing the conduction portion and the bottom of the lower cover.

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