Multi-cell steel shell mobile power supply

Abstract

The utility model relates to the technical field of mobile power sources, in particular to a multi-cell steel shell mobile power source which comprises a cell assembly, a first steel shell, a circuit mainboard, a first electrode elastic piece and a second electrode elastic piece, the cell assembly comprises a plurality of cells, the cell assembly is arranged in the first steel shell, one end of the first steel shell is provided with a bottom shell, and the other end of the first steel shell is provided with a second steel shell. The bottom shell is electrically connected with each battery cell in the battery cell assembly, the first electrode elastic sheet is electrically connected with the battery cell assembly and the circuit mainboard, and the second electrode elastic sheet is electrically connected with the battery cell assembly and the circuit mainboard. According to the multi-cell steel shell mobile power supply provided by the invention, the circuit mainboard is electrically connected with the cell assembly through the first electrode elastic sheet and the second electrode elastic sheet, and the cells in the cell assembly are connected through the bottom shell, so that the problem that a complete circuit is generally formed by a traditional multi-cell mobile power supply through various welding processes, and the cost is low is solved. The production process is complicated; and the product stability is poor.

Description

Technical Field

[0001] The invention relates to the technical field of mobile power supplies, and in particular to a multi-cell steel shell mobile power supply. Background Art

[0002] As the screens of personal digital products such as smart phones, tablet computers, and digital cameras become larger and larger, the energy consumption of processors is increasing, and the power consumption is getting faster and faster, while the battery power seriously restricts the use time of digital products. Therefore, in order to extend the use time of digital products, mobile power supplies that can be carried with you when it is impossible to charge them using the power grid have become the essential "companion" of these digital products.

[0003] Traditional multi-cell mobile power supplies generally use various welding processes to form a complete circuit, which not only has a complicated production process but also has poor product stability. Utility Model Content

[0004] The present application provides a multi-cell steel shell mobile power supply to solve the problem that traditional multi-cell mobile power supplies generally form a complete circuit through various welding processes, which not only has a complex production process but also has poor product stability.

[0005] In order to solve the above technical problems, a technical solution adopted in the present application is to provide a multi-cell steel shell mobile power supply, which includes:

[0006] A battery cell assembly, including a plurality of battery cells;

[0007] A first steel shell, wherein the battery cell assembly is built in the first steel shell, and a bottom shell is provided at one end of the first steel shell, wherein the bottom shell is electrically connected to each battery cell in the battery cell assembly;

[0008] Circuit board;

[0009] A first electrode spring is electrically connected to the battery cell assembly and the circuit board;

[0010] The second electrode spring is electrically connected to the battery core assembly and the circuit main board.

[0011] Optionally, the bottom shell is provided with a plurality of protrusions, and the plurality of protrusions protrude from the end of the first steel shell toward the battery core assembly.

[0012] Optionally, the multi-cell steel shell mobile power supply further includes a charging interface, and the charging interface is fixedly assembled with and electrically connected to the circuit main board.

[0013] Optionally, the charging interface includes a first charging interface and a second charging interface, and the first charging interface and the second charging interface are of different or same types.

[0014] Optionally, the multi-cell steel shell mobile power supply further includes a second steel shell, the circuit main board is disposed in the second steel shell, and the first steel shell and the second steel shell are connected by a welding process.

[0015] Optionally, a first fixing frame is further provided in the second steel shell, the first fixing frame is provided with a first through slot and a second through slot, the first charging interface corresponds to the first through slot, and the second charging interface corresponds to the second through slot.

[0016] Optionally, the multi-cell steel shell mobile power supply further includes a cover plate, the first fixing frame and the circuit main board enclose a storage cavity, the charging interface is located in the storage cavity, and the cover plate is fixedly assembled with the first fixing frame to seal the storage cavity.

[0017] Optionally, the multi-cell steel shell mobile power supply further includes a soft rubber cover, which is fixedly mounted to the first fixing frame and has a plurality of buttons disposed on the soft rubber cover.

[0018] Optionally, the cover plate includes a limiting portion, a notch is provided on the circuit main board, and the limiting portion passes through the notch to limit the cover plate.

[0019] Optionally, the outer surfaces of the first steel shell and the second steel shell are covered with a layer of heat shrink film.

[0020] The beneficial effect of the present application is that in the multi-cell steel shell mobile power provided by the present application, the circuit main board is electrically connected to the cell assembly through the first electrode spring and the second electrode spring, and the cells in the cell assembly are connected through the bottom shell, which solves the problem of complex production process and poor product stability caused by traditional multi-cell mobile power supplies that generally form a complete circuit through various welding processes. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work. Among them:

[0022] Figure 1 It is a schematic diagram of the three-dimensional structure of a multi-cell steel shell mobile power supply provided in an embodiment of the present application;

[0023] Figure 2 This is an exploded view of a multi-cell steel shell mobile power bank;

[0024] Figure 3 This is an exploded view of the internal structure of a multi-cell steel shell mobile power bank;

[0025] Figure 4 This is an exploded view of the circuit board and its related parts in a multi-cell steel shell mobile power supply;

[0026] Figure 5 It is a three-dimensional structural diagram of the first steel shell part of a multi-cell steel shell mobile power supply;

[0027] Figure 6 It is a three-dimensional structural diagram of the battery cell component part in a multi-battery steel shell mobile power supply.

[0028] Explanation of the reference numerals: 100, first steel shell; 110, bottom shell; 111, first bump; 112, second bump; 113, third bump; 114, fourth bump; 120, battery cell assembly; 121, first battery cell; 122, second battery cell; 123, third battery cell; 124, fourth battery cell; 200, circuit board; 210, second electrode spring; 220, first electrode spring; 230, first charging interface; 240, second charging interface; 250, notch; 300, second steel shell; 310, first fixing frame; 311, first through groove; 312, second through groove; 313, mounting groove; 400, cover plate; 410, limiting part; 500, soft rubber cover; 510, fixing column; 520, button; 600, heat shrink film; 700, first nickel strip 700; 800, second nickel strip 800. DETAILED DESCRIPTION

[0029] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0030] It should be noted that if the embodiments of the present application involve directional indications such as up, down, left, right, front, back, etc., then the directional indications are only used to explain the relative position relationship, movement, etc. between the components in a certain specific posture as shown in the accompanying drawings. If the specific posture changes, the directional indication will also change accordingly.

[0031] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the present application, the descriptions of "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or suggesting their relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, the technical solutions between the various embodiments can be combined with each other, but they must be based on the ability of ordinary technicians in the field to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such combination of technical solutions does not exist and is not within the scope of protection required by this application.

[0032] like Figures 1 to 6 As shown, the present application provides a multi-cell steel shell mobile power supply, which includes a cell assembly 120, a first steel shell 100, a circuit main board 200, a first electrode shrapnel 220 and a second electrode shrapnel 210. The cell assembly 120 includes a plurality of cells. The cell assembly 120 is built into the first steel shell 100. A bottom shell 110 is provided at one end of the first steel shell 100. The bottom shell 110 is electrically connected to each cell in the cell assembly 120. The first electrode shrapnel 220 is electrically connected to the cell assembly 120 and the circuit main board 200. The second electrode shrapnel 210 is electrically connected to the cell assembly 120 and the circuit main board 200.

[0033] The first steel shell 100 is a container with an opening on one side. The first steel shell 100 is made of steel with good conductivity. A bottom shell 110 is provided at one end of the first steel shell 100 away from the opening. The material of the bottom shell 110 is also steel with good conductivity to ensure that the entire multi-cell steel shell mobile power supply has good conductivity. The bottom shell 110 includes a first bump 111, a second bump 112, a third bump 113 and a fourth bump 114. The first bump 111, the second bump 112, the third bump 113 and the fourth bump 114 are all circular, and each bump is arranged in a matrix. The first bump 111, the second bump 112, the third bump 113 and the fourth bump 114 all protrude from the end of the first steel shell 100 toward the battery cell assembly 120.

[0034] The battery cell assembly 120 includes a first battery cell 121, a second battery cell 122, a third battery cell 123 and a fourth battery cell 124. The first battery cell 121, the second battery cell 122, the third battery cell 123 and the fourth battery cell 124 are all cylindrical. The lengths of the first battery cell 121, the second battery cell 122, the third battery cell 123 and the fourth battery cell 124 are slightly smaller than the length of the first steel shell 100. The first battery cell 121, the second battery cell 122, the third battery cell 123 and the fourth battery cell 124 are distributed in a matrix. The battery cell assembly 120 is located inside the first steel shell 100. The electrodes of the first battery cell 121 and the third battery cell 123 on the side close to the circuit main board 200 are electrically connected by welding the first nickel strip 700, and the electrodes of the second battery cell 122 and the fourth battery cell 124 on the side close to the circuit main board 200 are electrically connected by welding the second nickel strip 800.

[0035] The circuit main board 200 is roughly a rectangular plate. The circuit main board 200 is located on the side of the first steel shell 100 away from the bottom shell 110. Various electronic components are arranged on the circuit main board 200 to realize the charging and discharging functions of the multi-cell steel shell mobile power supply. The first electrode spring 220 and the second electrode spring 210 are arranged on the side of the circuit main board 200 close to the first steel shell 100. The first electrode spring 220 and the second electrode spring 210 are both elastic conductive sheets. The first electrode spring 220 and the second electrode spring 210 have the same structure. One end of both are fixedly assembled with the circuit main board 200 and electrically connected, and the other ends extend into the first steel shell 100 respectively to be electrically connected to the first battery cell 121 and the second battery cell 122.

[0036] In a specific embodiment, when the polarity of the electrode at one end of the battery cell assembly 120 close to the bottom shell 110 is different, for example, the positive electrode of the first battery cell 121 conflicts with the first protrusion 111, the negative electrode of the second battery cell 122 conflicts with the second protrusion 112, the positive electrode of the third battery cell 123 conflicts with the third protrusion 113, and the negative electrode of the fourth battery cell 124 conflicts with the fourth protrusion 114, one end of the first electrode spring 220 is fixedly assembled and electrically connected to the circuit main board 200, and the other end is electrically connected to the first nickel strip 700, and one end of the second electrode spring 210 is fixedly assembled and electrically connected to the circuit main board 200, and the other end is electrically connected to the second nickel strip 800. Through the above connection method, it is possible to connect the first battery cell 121 and the third battery cell 123 in parallel, the second battery cell 122 and the fourth battery cell 124 in parallel, and then connect the two groups of parallel battery cells in series and connect them to the circuit main board 200.

[0037] In another specific embodiment, when the polarities of the electrodes at one end of the battery cell assembly 120 close to the bottom shell 110 are the same, for example, the negative electrode of the first battery cell 121 conflicts with the first protrusion 111, the negative electrode of the second battery cell 122 conflicts with the second protrusion 112, the negative electrode of the third battery cell 123 conflicts with the third protrusion 113, and the negative electrode of the fourth battery cell 124 conflicts with the fourth protrusion 114, one end of the first electrode spring 220 is fixedly assembled and electrically connected to the circuit main board 200, and the other end is electrically connected to the first nickel strip 700, and one end of the second electrode spring 210 is fixedly assembled and electrically connected to the circuit main board 200, and the other end is electrically connected to the second nickel strip 800. At this time, it is also necessary to set a third motor shrapnel and a fourth electrode shrapnel on the circuit main board 200. The third motor shrapnel and the fourth electrode shrapnel are respectively arranged on both sides of the circuit main board 200. One end of the third motor shrapnel and the fourth electrode shrapnel are electrically connected to the circuit main board 200 and the other end is electrically connected to the first steel shell 100. Through the above connection method, the first battery cell 121 and the third battery cell 123 can be connected in parallel, the second battery cell 122 and the fourth battery cell 124 can be connected in parallel, and then the two groups of parallel battery cells can be connected in series with the circuit main board 200 respectively.

[0038] In addition, the multi-cell steel shell mobile power supply also includes a charging interface, which is fixedly assembled and electrically connected to the circuit main board 200. The charging interface includes a first charging interface 230 and a second charging interface 240. The types of the first charging interface 230 and the second charging interface 240 can be the same or different to accommodate different charging devices. In a specific embodiment, the first charging interface 230 is a USB interface, and the second charging interface 240 is a Type-C interface to meet the charging needs of more users.

[0039] The multi-cell steel shell mobile power supply further includes a second steel shell 300, which is disposed at the opening of the first steel shell 100, the circuit main board 200 is disposed in the second steel shell 300, and the first steel shell 100 and the second steel shell 300 are connected by welding. The second steel shell 300 protects the circuit main board 200 and prevents the circuit main board 200 from being affected or damaged by the external environment.

[0040] A silicone gasket is provided, and the shape of the silicone gasket matches the shape of the first through groove 311 and the second through groove 312. In the actual assembly process, by applying pressure to the first charging interface 230 and the second charging interface 240, the silicone gasket is respectively embedded in the first through groove 311 and the second through groove 312, so that the steel shell mobile power supply has a better waterproof effect. The first fixing frame 310 can also fix and support the first charging interface 230 and the second charging interface 240, ensuring the stability and reliability of the first charging interface 230 and the second charging interface 240.

[0041] The first fixing frame 310 is also provided with a accommodating space, in which a mounting groove 313 is provided. The shape of the mounting groove 313 matches the shape of the circuit main board 200. The circuit main board 200 is embedded in the mounting groove 313, so that the circuit main board 200 is fixedly connected to the mounting groove 313. The circuit main board 200 and the first fixing frame 310 are enclosed to form a storage cavity, and the charging interface is located in the storage cavity.

[0042] The multi-cell steel shell mobile power supply also includes a cover plate 400, which is fixedly assembled with the first fixing frame 310 by screws to block the storage cavity, and glue is filled in the storage cavity to enhance the waterproof effect of the multi-cell steel shell mobile power supply. The cover plate 400 includes a limiting portion 410, and a notch 250 is provided on the circuit main board 200. The limiting portion 410 passes through the notch 250 to limit the cover plate 400. Through the cooperation of the limiting portion 410 and the notch 250, the assembly stability between the cover plate 400 and the first fixing frame 310 can be ensured to prevent the cover plate 400 from falling off or shifting.

[0043] The multi-cell steel shell mobile power supply also includes a soft rubber cover 500, which is made of silicone or other flexible materials with waterproof effect. The soft rubber cover 500 is arranged on the side of the first fixing frame 310 away from the first steel shell 100. A plurality of through holes are arranged on the first fixing frame 310, and a plurality of fixing columns 510 are arranged on the soft rubber cover 500. The fixing columns 510 match the through holes. The plurality of fixing columns 510 are inserted into the plurality of through holes, so that the soft rubber cover 500 is fixedly assembled with the first fixing frame 310. A button 520 is arranged on the soft rubber cover 500, and the user can control the working state of the mobile power supply by pressing the button 520, such as turning on or off the charging function.

[0044] A layer of heat shrink film 600 is further provided on the outer surface of the first steel shell 100 and the second steel shell 300, and the heat shrink film 600 wraps the first steel shell 100 and the second steel shell 300. The heat shrink film 600 can be made into different colors to improve the aesthetics of the steel shell mobile power supply. The setting of the heat shrink film 600 can further enhance the waterproof performance of the steel shell mobile power supply.

[0045] In the multi-cell steel shell mobile power provided by the present application, the circuit main board 200, the first electrode shrapnel 220 and the second electrode shrapnel 210 are arranged, and the cells in the cell assembly 120 are connected in series through the bottom shell 110, so that the charging and discharging control of the cell assembly 120 is realized, the production process is simplified, and the stability of the product is improved. In addition, the arrangement of the first charging interface 230 and the second charging interface 240 enables the mobile power to adapt to different charging devices, improving the convenience of use, and the arrangement of the heat shrink film 600 increases the aesthetics and durability of the mobile power.

[0046] The above are only specific implementation methods of the present application, but the protection scope of the present application is not limited thereto. Any technician familiar with the technical field can easily think of changes or substitutions within the technical scope disclosed in the present application, which should be covered by the protection scope of the present application.

Claims

1. A multi-cell steel shell mobile power supply, characterized in that: include: A battery cell assembly (120), comprising a plurality of battery cells; a first steel shell (100), the battery cell assembly (120) being built in the first steel shell (100), a bottom shell (110) being provided at one end of the first steel shell (100), the bottom shell (110) being electrically connected to each battery cell in the battery cell assembly (120); Circuit board (200); A first electrode spring (220) electrically connected to the battery cell assembly (120) and the circuit main board (200); The second electrode spring (210) is electrically connected to the battery core assembly (120) and the circuit main board (200).

2. The multi-cell steel shell mobile power supply according to claim 1, characterized in that: The bottom shell (110) is provided with a plurality of protrusions, and the plurality of protrusions all protrude from the end of the first steel shell (100) toward the battery core assembly (120).

3. The multi-cell steel shell mobile power supply according to claim 1, characterized in that: The multi-cell steel shell mobile power supply further comprises a charging interface, wherein the charging interface is fixedly assembled with and electrically connected to the circuit main board (200).

4. The multi-cell steel shell mobile power supply according to claim 3, characterized in that: The charging interface comprises a first charging interface (230) and a second charging interface (240), and the first charging interface (230) and the second charging interface (240) are of different or same types.

5. The multi-cell steel shell mobile power supply according to claim 4, characterized in that: The multi-cell steel shell mobile power supply further comprises a second steel shell (300), the circuit main board (200) is arranged in the second steel shell (300), and the first steel shell (100) and the second steel shell (300) are connected by a welding process.

6. The multi-cell steel shell mobile power supply according to claim 5, characterized in that: A first fixing frame (310) is also provided in the second steel shell (300), the first fixing frame (310) being provided with a first through slot (311) and a second through slot (312), the first charging interface (230) corresponding to the first through slot (311), and the second charging interface (240) corresponding to the second through slot (312).

7. The multi-cell steel shell mobile power supply according to claim 6, characterized in that: The multi-cell steel shell mobile power supply further comprises a cover plate (400), the first fixing frame (310) and the circuit main board (200) enclose a storage cavity, the charging interface is located in the storage cavity, and the cover plate (400) and the first fixing frame (310) are fixedly assembled to seal the storage cavity.

8. The multi-cell steel shell mobile power supply according to claim 7, characterized in that: The multi-cell steel shell mobile power supply further comprises a soft rubber cover (500), the soft rubber cover (500) being fixedly mounted on the first fixing frame (310), and a plurality of buttons (520) being provided on the soft rubber cover (500).

9. The multi-cell steel shell mobile power supply according to claim 8, characterized in that: The cover plate (400) comprises a limiting portion (410), a notch (250) is provided on the circuit main board (200), and the limiting portion (410) passes through the notch (250) to limit the position of the cover plate (400).

10. The multi-cell steel shell mobile power supply according to claim 5, characterized in that: The outer surfaces of the first steel shell (100) and the second steel shell (300) are covered with a layer of heat shrinkable film (600).

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