Welding-free USB rechargeable battery

Abstract

The utility model relates to a welding-free universal serial bus (USB) rechargeable battery, which comprises a metal barrel shell, a printed circuit board (PCB), a battery cell, a USB interface and a cap, and is characterized in that the PCB is electrically connected with a positive terminal, a negative terminal and a negative conducting piece; the battery cell is mounted in the metal barrel shell, a positive electrode pin of the battery cell is inserted into the positive terminal, and a negative electrode pin of the battery cell is inserted into the negative terminal; one end of the negative electrode conduction piece abuts against the side wall of the metal barrel shell to form electric connection; and the USB interface is electrically connected with the PCB. According to the welding-free USB rechargeable battery, the positive terminal and the negative terminal are electrically connected with the PCB, the positive pin of the battery cell is inserted into the positive terminal, and the negative pin of the battery cell is inserted into the negative terminal, so that quick insertion connection and electric conduction between the battery cell and the PCB are realized, and welding is not needed; one end of the negative electrode conduction piece is electrically connected with the PCB, and the other end of the negative electrode conduction piece is electrically connected with the metal barrel shell, so that quick connection and electric conduction between the metal barrel shell and the PCB are realized; when charging is needed, a charging head is inserted into the USB interface; after the battery is fully charged, the positive electrode connecting pin of the positive electrode cap is electrically connected with the PCB, the positive electrode is conducted, meanwhile, the negative electrode of the battery cell is electrically connected with the side wall of the metal barrel shell through the negative electrode conduction piece, and the negative electrode is conducted; the welding-free USB rechargeable battery is convenient to produce, the production cost is reduced, and welding-free installation of the rechargeable battery is realized.

Description

Technical Field

[0001] The utility model relates to the technical field of mobile power supplies, in particular to a welding-free USB rechargeable battery. Background Art

[0002] Rechargeable batteries are rechargeable batteries with a limited number of recharge cycles. Their advantages include being economical, environmentally friendly, and capable of holding a sufficient amount of power, making them suitable for high-power, long-lasting appliances such as portable players, remote controls, and electronic toys. However, currently, the positive and negative electrodes of battery cells are typically soldered to circuit boards, resulting in high production costs and numerous processing steps, making them unsuitable for automated production. Utility Model Content

[0003] Based on this, it is necessary to provide a welding-free USB rechargeable battery that is easy to produce in order to solve the above problems.

[0004] A welding-free USB rechargeable battery comprises a metal cylindrical shell, a PCB board, a battery cell, a USB interface and a cap, wherein the PCB board is electrically connected to a positive terminal, a negative terminal and a negative conductive piece; the battery cell is installed in the metal cylindrical shell, the positive electrode pin of the battery cell is inserted into the positive terminal, and the negative electrode pin of the battery cell is inserted into the negative terminal; one end of the negative conductive piece abuts against the side wall of the metal cylindrical shell to form an electrical connection; the USB interface is electrically connected to the PCB board; the cap comprises a rubber cover and a positive electrode cap, the rubber cover is fixedly engaged with the upper end opening of the metal cylindrical shell, the PCB board is installed on the rubber cover, and the positive electrode cap is inserted into the rubber cover; the edge of the positive electrode cap is provided with a clamping foot for fixing to the rubber cover and a positive electrode connection foot for electrical contact with the PCB board.

[0005] In one embodiment, the positive electrode cap further includes a panel, a cap body and a clamping block, the cap body is protruding from the panel, the clamping pin and the positive electrode connecting pin are respectively connected to one side of the panel; the clamping block is protruding from one side of the clamping pin, and the clamping block is used to clamp the rubber cover.

[0006] In one embodiment, the rubber cover includes a sleeve, a partition and a boss, the sleeve is interference-connected with the metal cylinder shell; the partition is installed on the sleeve, the panel cover is arranged on the partition, and the clamping block is used to clamp the partition; the boss is convexly arranged on the partition, and the cap cover is arranged on the boss.

[0007] In one embodiment, the sleeve is provided through an end of the USB interface away from the PCB board.

[0008] In one embodiment, the metal cylindrical shell is cylindrical, and one end of the metal cylindrical shell is provided with an opening.

[0009] In one embodiment, the rubber cover further includes a convex edge, which is protruding from the outer side of the sleeve and is used to abut against one end of the metal cylindrical shell.

[0010] In one embodiment, the rubber cover further includes a hook, which is installed on the inner side of the sleeve. There are at least two hooks, and the two hooks cooperate to fix the PCB board.

[0011] In one embodiment, the sleeve, the partition, the boss, the convex edge and the hook are integrally formed plastic components.

[0012] In one embodiment, the negative electrode conductive member is a spring.

[0013] In one embodiment, the metal cylindrical shell is made of steel, the positive terminal and the negative terminal are both made of copper; the battery cell is a capacitive lithium battery, the negative electrode conductive member is made of copper, and the positive electrode cap is made of steel.

[0014] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0015] The soldering-free USB rechargeable battery of the present invention is electrically connected to the PCB board through the positive terminal and the negative terminal. The positive pin of the battery cell is inserted into the positive terminal, and the negative pin of the battery cell is inserted into the negative terminal, thereby realizing quick insertion connection and electrical conduction between the battery cell and the PCB board without soldering; one end of the negative electrode conductive piece is electrically connected to the PCB board, and the other end is electrically connected to the metal cylinder shell, thereby realizing quick connection and electrical conduction between the metal cylinder shell and the PCB board; when charging is required, the charging head can be inserted into the USB interface; after being fully charged, the positive electrode connection pin of the positive cap is electrically connected to the PCB board, and the positive electrode is conductive. At the same time, the negative electrode of the battery cell is electrically connected to the side wall of the metal cylinder shell through the negative electrode conductive piece, and the negative electrode is conductive; the soldering-free USB rechargeable battery is easy to produce, reduces production costs, and realizes soldering-free installation of the rechargeable battery. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the assembly structure of a solder-free USB rechargeable battery shown in an embodiment of the present utility model;

[0017] Figure 2 for Figure 1 Sectional view along line AA;

[0018] Figure 3 for Figure 1 Schematic diagram of the assembly structure of the PCB board, positive terminal, negative terminal, negative electrode conductive component and USB interface in the solder-free USB rechargeable battery;

[0019] Figure 4 for Figure 1 The schematic diagram of the structure of the plastic cover of the solder-free USB rechargeable battery is shown;

[0020] Figure 5 for Figure 4 Schematic diagram of the structure of the middle rubber cover from another angle;

[0021] Figure 6 for Figure 1 The diagram shows the structure of the positive electrode cap in the solder-free USB rechargeable battery.

[0022] The meanings of the numbers in the accompanying drawings are:

[0023] 100. No welding USB rechargeable battery;

[0024] 10. Metal shell; 20. PCB board; 21. Positive terminal; 22. Negative terminal; 23. Negative conductor; 30. Battery cell; 31. Positive pin; 32. Negative pin; 40. USB interface; 50. Cap; 51. Rubber cover; 511. Sleeve; 5111. Relief groove; 5112. Through hole; 512. Partition; 5121. First slot; 5122. Second slot; 5123. Groove; 513. Boss; 514. Raised edge; 515. Hook; 52. Positive cap; 521. Clamping foot; 522. Positive connecting foot; 523. Panel; 524. Cap body; 525. Block. DETAILED DESCRIPTION

[0025] To make the above-mentioned objects, features, and advantages of the present invention more clearly understood, the following detailed description of specific embodiments of the present invention is provided in conjunction with the accompanying drawings. The following description sets forth many specific details to facilitate a full understanding of the present invention. However, the present invention can be implemented in many other ways than those described herein, and those skilled in the art may make similar modifications without departing from the scope of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0026] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like to indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation to the present invention.

[0027] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features being referred to. Thus, a feature specified as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of this utility model, "plurality" means at least two, such as two, three, etc., unless otherwise specifically defined.

[0028] In this utility model, unless otherwise specified or limited, the terms "installed," "connected," "connect," "fixed," etc. should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integration; mechanical connection, electrical connection; direct connection, or indirect connection through an intermediate medium; internal communication between two components, or interaction between two components, unless otherwise specified. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on specific circumstances.

[0029] In the present invention, unless otherwise expressly specified or limited, when a first feature is "above" or "below" a second feature, it may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediary. Furthermore, when a first feature is "above," "above," or "above" a second feature, it may mean that the first feature is directly above or diagonally above the second feature, or simply means that the first feature is at a higher level than the second feature. When a first feature is "below," "below," or "below" a second feature, it may mean that the first feature is directly below or diagonally below the second feature, or simply means that the first feature is at a lower level than the second feature.

[0030] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it may be directly on the other element or there may be an intermediate element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be an intermediate element. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only implementation methods.

[0031] Please refer to Figures 1 to 6, is a solder-free USB rechargeable battery 100 according to an embodiment of the utility model, comprising a metal cylindrical shell 10, a PCB board 20, a battery cell 30, a USB interface 40 and a cap 50. The PCB board 20 is electrically connected to a positive terminal 21, a negative terminal 22 and a negative conductive member 23; the battery cell 30 is installed in the metal cylindrical shell 10, the positive pin 31 of the battery cell 30 is inserted into the positive terminal 21, and the negative pin 32 of the battery cell 30 is inserted into the negative terminal 22; the negative conductive member 23 is electrically connected to the PCB board 20. One end of the component 23 abuts against the side wall of the metal cylindrical shell 10 to form an electrical connection; the USB interface 40 is electrically connected to the PCB board 20; the cap 50 includes a rubber cover 51 and a positive cap 52, the rubber cover 51 is fixedly engaged with the upper end opening of the metal cylindrical shell 10, the PCB board 20 is installed on the rubber cover 51, and the positive cap 52 is inserted into the rubber cover 51; the edge of the positive cap 52 is provided with a clamping foot 521 for fixing to the rubber cover 51 and a positive connection foot 522 for electrical contact with the PCB board 20. The soldering-free USB rechargeable battery 100 is electrically connected to the PCB board 20 through the positive terminal 21 and the negative terminal 22. The positive pin 31 of the battery cell 30 is inserted into the positive terminal 21, and the negative pin 32 of the battery cell 30 is inserted into the negative terminal 22, thereby realizing quick insertion connection and electrical conduction between the battery cell 30 and the PCB board 20 without the need for soldering; one end of the negative electrode conductive member 23 is electrically connected to the PCB board 20, and the other end is electrically connected to the metal cylindrical shell 10, thereby realizing quick connection and electrical conduction between the metal cylindrical shell 10 and the PCB board 20; when charging is required, the charging head can be inserted into the USB interface 40; after being fully charged, the positive electrode connection pin 522 of the positive cap 52 is electrically connected to the PCB board 40, and the positive electrode is conductive. At the same time, the negative electrode of the battery cell 30 is electrically connected to the side wall of the metal cylindrical shell 10 through the negative electrode conductive member 23, and the negative electrode is conductive.

[0032] like Figures 1 to 3As shown, in this embodiment, the metal shell 10 is cylindrical and has an opening at one end. Optionally, the metal shell 10 is made of steel and has a strong structure. The PCB board 20 is electrically connected to a positive terminal 21, a negative terminal 22, and a negative conductor 23. One end of the negative conductor 23 abuts against the side wall of the metal shell 10 to form an electrical connection. Optionally, the positive terminal 21, the negative terminal 22, and the negative conductor 23 are all made of copper. Furthermore, the negative conductor 23 is a spring. During production, one end of the negative conductor 23 is mounted on the PCB board 20, and the other end extends outward. When the PCB board 20 is assembled with the metal shell 10, the end of the negative conductor 23 away from the PCB board 20 abuts the metal shell 10. As the PCB board 20 moves further, the end of the negative conductor 23 away from the PCB board 20 bends under the action of the metal shell 10 and abuts the inner wall of the metal shell 10. In one embodiment, the battery cell 30 is installed in the metal cylindrical shell 10, the positive pin 31 of the battery cell 30 is inserted into the positive terminal 21, and the negative pin 32 of the battery cell 30 is inserted into the negative terminal 22; optionally, the battery cell 30 is a capacitive lithium battery; further, the USB interface 40 is electrically connected to the PCB board 20.

[0033] like Figures 1 to 6 As shown, the cap 50 includes a rubber cover 51 and a positive electrode cap 52. The rubber cover 51 is fixedly engaged with the upper end opening of the metal cylindrical shell 10. The PCB board 20 is installed on the rubber cover 51, and the positive electrode cap 52 is inserted into the rubber cover 51. Optionally, the rubber cover 51 includes a sleeve 511, a partition 512 and a boss 513. The sleeve 511 is interference-connected with the metal cylindrical shell 10. The sleeve 511 is passed through the end of the USB interface 40 away from the PCB board 20 so that the charging head can be inserted into the USB interface 40. The partition 512 is installed on the sleeve 511, and the boss 513 is protruded from the partition 512. Furthermore, a clearance groove 5111 is provided on one side of the sleeve 511 to accommodate the negative electrode conductive member 23; a through hole 5112 is provided on the top of the sleeve 511 for the USB interface 40 to pass through. In one embodiment, the partition plate 512 defines a first slot 5121 and a second slot 5122 ; and a groove 5123 is defined along a periphery of the partition plate 512 .

[0034] like Figure 2 and Figure 5As shown, the rubber cover 51 also includes a flange 514, which is provided on the outside of the sleeve 511 and is used to abut one end of the metal cylindrical shell 10 to limit its position. The rubber cover 51 also includes hooks 515, which are mounted on the inside of the sleeve 511. There are at least two hooks 515, which cooperate to secure the PCB board 20. Optionally, one end of the PCB board 20 abuts the hook 515, and the other end abuts one end of the sleeve 511, ensuring a secure structure. In one embodiment, the sleeve 511, partition 512, boss 513, flange 514, and hook 515 are integrally molded plastic components that provide insulation.

[0035] like Figure 2 and Figure 6 As shown, the edge of the positive electrode cap 52 is provided with a clamping pin 521 for fixing to the rubber cover 51 and a positive electrode connecting pin 522 for electrical contact with the PCB board 20. Optionally, the clamping pin 521 is inserted into the rubber cover 51, and the positive electrode connecting pin 522 is inserted into the rubber cover 51; further, the first slot 5121 of the partition 512 is used to accommodate the clamping pin 521, and the second slot 5122 of the partition 512 is used to accommodate the positive electrode connecting pin 522; in one embodiment, the positive electrode cap 52 further includes a panel 523, a cap body 524 and a clamping block 525, wherein the cap body 524 is protruded from the panel 523, and the clamping pin 521 and the positive electrode connecting pin 522 are respectively connected to one side of the panel 523; the clamping block 525 is protruded from one side of the clamping pin 521 and is used to clamp the rubber cover 51. Optionally, the panel 523 is mounted on the partition 512, the cap 524 is mounted on the boss 513, and the clamp 525 is used to clamp the partition 512; the groove 5123 of the partition 512 is used to accommodate the periphery of the panel 523. Furthermore, the clamp 525 is an arc-shaped protrusion. In one embodiment, the positive electrode cap 52 is made of steel; the clamping pin 521, the positive electrode connecting pin 522, the panel 523, the cap 524, and the clamp 525 are all integrally formed.

[0036] During use, the positive terminal 21, the negative terminal 22, the negative conductive member 23 and the USB interface 40 are respectively installed on the PCB board 20, the positive cap 52 is inserted into the rubber cover 51, and then the PCB board 20 is clamped to the hook 515. Next, the positive pin 31 of the battery cell 30 is inserted into the positive terminal 21, and the negative pin 32 is inserted into the negative terminal 22. Then, the assembled battery cell 30, PCB board 20 and rubber cover 51 are inserted into the metal cylindrical shell 10. At this time, the end of the negative conductive member 23 away from the PCB board 20 abuts the metal cylindrical shell 10. As the rubber cover 51 moves further, under the action of the metal cylindrical shell 10, the end of the negative conductive member 23 away from the PCB board 20 is bent and abuts the inner wall of the metal cylindrical shell 10. The negative conductive member 23 is configured as a spring clip, which facilitates SMT and automated assembly.

[0037] The solder-free USB rechargeable battery 100 of the present invention is electrically connected to the PCB board 20 through the positive terminal 21 and the negative terminal 22. The positive pin 31 of the battery cell 30 is inserted into the positive terminal 21, and the negative pin 32 of the battery cell 30 is inserted into the negative terminal 22, thereby achieving quick insertion connection and electrical conduction between the battery cell 30 and the PCB board 20 without soldering. One end of the negative electrode conductive member 23 is electrically connected to the PCB board 20, and the other end is electrically connected to the metal cylindrical shell 10, thereby achieving quick connection and electrical conduction between the metal cylindrical shell 10 and the PCB board 20. When charging is required, the charging head can be inserted into the USB interface 40. After being fully charged, the positive electrode connection pin 522 of the positive cap 52 is electrically connected to the PCB board 40, and the positive electrode is conductive. At the same time, the negative electrode of the battery cell 30 is electrically connected to the side wall of the metal cylindrical shell 10 through the negative electrode conductive member 23, and the negative electrode is conductive. The solder-free USB rechargeable battery 100 is easy to produce, reduces production costs, and achieves solder-free installation of the rechargeable battery.

[0038] The technical features of the above-mentioned embodiments can be combined arbitrarily. In order to make the description concise, not all possible combinations of the technical features in the above-mentioned embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0039] The above-described embodiments merely represent several implementations of the present invention. While the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the utility model patent. It should be noted that a person skilled in the art would be able to make various modifications and improvements without departing from the concept of the present invention, and these modifications and improvements fall within the scope of protection of the present invention. Therefore, the scope of protection of the present utility model patent shall be determined by the appended claims.

Claims

1. A welding-free USB rechargeable battery, characterized in that: It includes a metal cylindrical shell, a PCB board, a battery cell, a USB interface and a cap, the PCB board is electrically connected to a positive terminal, a negative terminal and a negative conductive piece; the battery cell is installed in the metal cylindrical shell, the positive pin of the battery cell is inserted into the positive terminal, and the negative pin of the battery cell is inserted into the negative terminal; one end of the negative conductive piece abuts against the side wall of the metal cylindrical shell to form an electrical connection; the USB interface is electrically connected to the PCB board; the cap includes a rubber cover and a positive cap, the rubber cover is fixedly engaged with the upper end opening of the metal cylindrical shell, the PCB board is installed on the rubber cover, and the positive cap is inserted into the rubber cover; the edge of the positive cap is provided with a clamping foot for fixing with the rubber cover and a positive connection foot electrically contacting with the PCB board.

2. The solder-free USB rechargeable battery according to claim 1, characterized in that: The positive electrode cap also includes a panel, a cap body and a clamping block. The cap body is protruded from the panel, and the clamping pin and the positive electrode connecting pin are respectively connected to one side of the panel; the clamping block is protruded from one side of the clamping pin, and the clamping block is used to clamp the rubber cover.

3. The solder-free USB rechargeable battery according to claim 2, characterized in that: The rubber cover includes a sleeve, a partition and a boss. The sleeve is interference-connected with the metal cylinder shell. The partition is installed on the sleeve, the panel cover is arranged on the partition, and the clamping block is used to clamp the partition. The boss is convexly arranged on the partition, and the cap cover is arranged on the boss.

4. The solder-free USB rechargeable battery according to claim 3, characterized in that: The sleeve is passed through one end of the USB interface away from the PCB board.

5. The solder-free USB rechargeable battery according to claim 3, characterized in that: The metal cylindrical shell is cylindrical, and one end of the metal cylindrical shell is provided with an opening.

6. The solder-free USB rechargeable battery according to claim 3, characterized in that: The rubber cover further includes a convex edge, which is convexly arranged on the outer side of the sleeve and is used to abut against one end of the metal cylindrical shell.

7. The solder-free USB rechargeable battery according to claim 6, characterized in that: The rubber cover further includes a hook, which is installed on the inner side of the sleeve. There are at least two hooks, and the two hooks cooperate to fix the PCB board.

8. The solder-free USB rechargeable battery according to claim 7, characterized in that: The sleeve, the partition, the boss, the convex edge and the hook are integrally formed plastic components.

9. The solder-free USB rechargeable battery according to claim 1, characterized in that: The negative electrode conducting member is a spring.

10. The solder-free USB rechargeable battery according to claim 1, characterized in that: The metal cylindrical shell is made of steel, and the positive terminal and the negative terminal are both made of copper; the battery cell is a capacitive lithium battery, the negative electrode conductive piece is made of copper, and the positive electrode cap is made of steel.

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