9V rechargeable nickel-metal hydride square battery

Abstract

A 9V rechargeable nickel-metal hydride square battery comprises a square outer shell with an inner cavity and a battery core arranged in the inner cavity, the square outer shell comprises a shell body and a battery cover covering the shell body, a positive electrode cap and a negative electrode cap are arranged on the battery cover, and the 9V rechargeable nickel-metal hydride square battery further comprises a PCBA board arranged in the inner cavity. The PCBA board is arranged below the battery cover and located above the battery cell, an elastic assembly is arranged on the PCBA board, the elastic assembly abuts against the positive electrode cap and the negative electrode cap, the elastic assembly is electrically connected with the positive electrode cap and the negative electrode cap, the PCBA board is provided with a positive electrode conductive end and a negative electrode conductive end, and the elastic assembly is electrically connected with the positive electrode conductive end and the negative electrode conductive end. The battery cell comprises a positive electrode lead-out piece, a negative electrode lead-out piece and a plurality of single nickel-metal hydride batteries, the single nickel-metal hydride batteries are connected in series, the positive electrode lead-out piece and the negative electrode lead-out piece are electrically connected with the positive electrode conductive end and the negative electrode conductive end respectively, and a USB interface is formed in the PCBA board and exposed out of the side wall of the square shell.

Description

Technical Field

[0001] The utility model relates to the technical field of batteries, in particular to a 9V rechargeable nickel-hydrogen square battery. Background Art

[0002] According to ANSI standards, a 9V battery is 26.5mm wide, 17.5mm thick, and 48.5mm high. 9V batteries are mainly used in walkie-talkies, remote-controlled toys, smoke alarms, wireless microphones, multimeters and other electronic and instrumentation products. 9V batteries can provide higher operating voltages for the devices.

[0003] 9V rechargeable batteries are increasingly used in daily life. Currently, the 9V rechargeable batteries on the market obtain a 9V voltage by connecting multiple rechargeable batteries in series, and their cells use nickel-metal hydride batteries or lithium batteries.

[0004] However, the capacity of a 9V rechargeable battery can be used for a relatively long time, and the charging frequency is low; many 9V rechargeable batteries need to be charged using a dedicated charger when the battery is low, so the user needs to purchase a special charger and install the 9V rechargeable battery in the charger for charging, which not only increases the user's cost of use, but also causes inconvenience in use. Utility Model Content

[0005] The utility model aims to provide a 9V rechargeable nickel-metal hydride square battery to solve the problem that the current 9V rechargeable battery needs to be charged with a dedicated charger.

[0006] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0007] A 9V rechargeable nickel-hydrogen square battery comprises a square shell with an inner cavity and a battery cell arranged in the inner cavity, the square shell comprises a shell and a battery cover covering the shell, a positive electrode cap and a negative electrode cap are arranged on the battery cover, the 9V rechargeable nickel-hydrogen square battery also comprises a PCBA board arranged in the inner cavity, the PCBA board is arranged below the battery cover and above the battery cell, an elastic component is arranged on the PCBA board, the elastic component abuts against the positive electrode cap and the negative electrode cap, and the elastic component is electrically connected to the positive electrode cap and the negative electrode cap, the PCBA board has a positive conductive end and a negative conductive end, the elastic component is electrically connected to the positive conductive end and the negative conductive end, the battery cell comprises a positive lead-out sheet, a negative lead-out sheet and a plurality of single nickel-hydrogen batteries, the plurality of single nickel-hydrogen batteries are connected in series, the positive lead-out sheet and the negative lead-out sheet are electrically connected to the positive conductive end and the negative conductive end respectively, a USB interface is arranged on the PCBA board, and the USB interface is exposed on the side wall of the square shell.

[0008] Furthermore, the elastic component includes a first spring sheet and a second spring sheet, which are arranged at intervals on the upper surface of the PCBA board, and the first spring sheet and the second spring sheet respectively abut the positive electrode cap and the negative electrode cap, and the first spring sheet and the second spring sheet are respectively electrically connected to the positive conductive end and the negative conductive end.

[0009] Furthermore, the positive electrode cap and the negative electrode cap are respectively mounted on the battery cover through a first fixing member and a second fixing member, the first fixing member and the second fixing member respectively penetrate the battery cover, the first elastic sheet and the second elastic sheet respectively abut the first fixing member and the second fixing member, the positive electrode cap is electrically connected to the first elastic sheet through the first fixing member, and the negative electrode cap is electrically connected to the second elastic sheet through the second fixing member.

[0010] Furthermore, the USB interface is arranged on the lower surface of the PCBA board.

[0011] Furthermore, the single nickel-hydrogen battery is a cylindrical battery, and the battery cell also includes a mounting frame, which is installed in the inner cavity. The mounting frame is used to install the PCBA board and the cylindrical battery, and several cylindrical batteries are connected in series through the conductive sheet.

[0012] Furthermore, the mounting frame is provided with a plurality of mounting cavities on the opposite side walls, the mounting cavities are used to install cylindrical batteries, and the mounting frame is provided with connecting holes on the opposite side walls corresponding to the mounting cavities, and the connecting holes penetrate the bottom wall of the mounting cavity.

[0013] Furthermore, a connecting groove is provided on the side wall of the mounting frame, the connecting groove is connected to the mounting cavity and the connecting hole on the same side wall of the mounting frame, and the connecting groove is used to accommodate the conductive sheet.

[0014] Furthermore, the single nickel-hydrogen battery is a square battery, and several square batteries are neatly stacked in the inner cavity.

[0015] Furthermore, the outer surface of the battery cell is wrapped with a layer of buffer pad, and the positive electrode lead-out sheet and the negative electrode lead-out sheet pass through the buffer pad.

[0016] Furthermore, an abutment portion is provided on the inner side wall of the shell, and the abutment portion is used to support the PCBA board.

[0017] The utility model provides a 9V rechargeable nickel-metal hydride square battery with beneficial effects: the 9V rechargeable nickel-metal hydride square battery proposed by the utility model uses the elastic component of the PCBA board to press against the positive cap and the negative cap on the battery cover, thereby avoiding the positive conductive end and the negative conductive end of the PCBA board being connected to the positive cap and the negative cap respectively through welding wires, thereby reducing the difficulty of battery assembly and improving production efficiency; by providing a USB interface, charging of the battery is made simpler and more convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1This is a three-dimensional diagram of a 9V rechargeable nickel-metal hydride square battery according to the first embodiment of the present utility model.

[0019] Figure 2 for Figure 1 An exploded perspective view of a 9V rechargeable nickel-metal hydride square battery is shown.

[0020] Figure 3 for Figure 2 A magnified stereogram of point A in the middle.

[0021] Figure 4 for Figure 1 A cross-sectional view of a 9V rechargeable NiMH square battery is shown.

[0022] Figure 5 for Figure 4 The enlarged stereogram of point B in the middle.

[0023] Figure 6 for Figure 2 A perspective view of the PCBA board is shown.

[0024] Figure 7 for Figure 2 A perspective view of the mounting bracket is shown.

[0025] Figure 8 for Figure 7 A perspective view of the mounting bracket shown from another angle.

[0026] Fig. 9 for Figure 8 Enlarged stereogram of point C in the middle.

[0027] Fig.10 This is a cross-sectional view of a 9V rechargeable nickel-metal hydride square battery according to the second embodiment of the present utility model.

[0028] Fig.11 for Fig.10 A partial perspective view of the housing shown in FIG. DETAILED DESCRIPTION

[0029] The following is a further detailed description of the specific implementation of the present invention in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0030] The terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside", "vertical", "horizontal", etc. in the specification and claims of the utility model indicate directions or position relationships based on the directions or position relationships shown in the drawings, and are only for the clarity of expressing the technical solutions and the convenience of description, and therefore cannot be understood as limitations on the present application.

[0031] Embodiment 1:

[0032] See also Figure 1-Figure 4 and Figure 6 A 9V rechargeable nickel-metal hydride square battery comprises a square housing 1 having an inner cavity 100 and a battery cell 40 disposed in the inner cavity 100. The square housing 1 comprises a shell 20 and a battery cover 10 covering the shell 20, the shell 20 and the battery cover 10 are connected by a snap-fit ​​structure, and the battery cover 10 is provided with a positive electrode cap 11 and a negative electrode cap 12.

[0033] The 9V rechargeable nickel-metal hydride square battery also includes a PCBA board 30 arranged in the inner cavity 100, the PCBA board 30 is arranged below the battery cover 10 and above the battery cell 40, an elastic component 31 is arranged on the PCBA board 30, the elastic component 31 abuts against the positive cap 11 and the negative cap 12, and the elastic component 31 is electrically connected to the positive cap 11 and the negative cap 12; the PCBA board 30 has a positive conductive end and a negative conductive end, and the elastic component 31 is electrically connected to the positive conductive end and the negative conductive end.

[0034] The battery cell 40 includes a positive lead-out plate 41, a negative lead-out plate 42 and a plurality of single nickel-hydrogen batteries, wherein the plurality of single nickel-hydrogen batteries are connected in series, and the positive lead-out plate 41 and the negative lead-out plate 42 are electrically connected to the positive conductive end and the negative conductive end respectively.

[0035] The PCBA board 30 is provided with a USB interface 32 , and the USB interface 32 is exposed on the side wall of the square housing 1 .

[0036] As described above, the 9V rechargeable nickel-metal hydride square battery proposed in the utility model, through the elastic component 31 of the PCBA board 30, presses against the positive cap 11 and the negative cap 12 on the battery cover 10, avoiding the positive conductive end and the negative conductive end of the PCBA board 30 being connected to the positive cap 11 and the negative cap 12 respectively through welding wires, thereby reducing the difficulty of battery assembly and improving production efficiency; by providing the USB interface 32, charging of the battery is simpler and more convenient.

[0037] The shell 20 and the battery cover 10 are made of insulating materials, such as ABS, PP, PE, PVC, etc. In the present embodiment, the shell 20 and the battery cover 10 are made of ABS material. ABS material has the advantages of impact resistance, high durability, corrosion resistance, good insulation performance, etc., making the shell 20 and the battery cover 10 more durable.

[0038] See also Figure 2 and Figure 4-Figure 6 The elastic component 31 includes a first elastic sheet 311 and a second elastic sheet 312, and the first elastic sheet 311 and the second elastic sheet 312 are arranged at intervals on the upper surface of the PCBA board 30. The first elastic sheet 311 and the second elastic sheet 312 respectively abut against the positive electrode cap 11 and the negative electrode cap 12, and the first elastic sheet 311 and the second elastic sheet 312 are respectively electrically connected to the positive electrode conductive end and the negative electrode conductive end, so that the positive electrode conductive end is electrically connected to the positive electrode cap 11 through the first elastic sheet 311, and the negative electrode conductive end is electrically connected to the negative electrode cap 12 through the second elastic sheet 312, thereby realizing that the positive electrode lead-out sheet 41 is electrically connected to the positive electrode cap 11, and the negative electrode lead-out sheet 42 is electrically connected to the negative electrode cap 12.

[0039] Furthermore, the positive electrode cap 11 and the negative electrode cap 12 are respectively mounted on the battery cover 10 through a first fixing member 13 and a second fixing member 14, and the first fixing member 13 and the second fixing member 14 respectively penetrate the battery cover 10. The first fixing member 13 and the second fixing member 14 respectively fix the positive electrode cap 11 and the negative electrode cap 12, and the first fixing member 13 and the second fixing member 14 are respectively electrically connected to the positive electrode cap 11 and the negative electrode cap 12. The first elastic sheet 311 and the second elastic sheet 312 respectively abut against the first fixing member 13 and the second fixing member 14, and the positive electrode cap 11 is electrically connected to the first elastic sheet 311 through the first fixing member 13, and the negative electrode cap 12 is electrically connected to the second elastic sheet 312 through the second fixing member 14.

[0040] The USB interface 32 may be a Micro USB interface or a Type-C interface. Since the Type-C interface is more common, in this embodiment, the USB interface 32 adopts the Type-C interface. In addition, in order to prevent the USB interface 32 from affecting the elastic component 31 from abutting the positive cap 11 and the negative cap 12, the USB interface 32 is disposed on the lower surface of the PCBA board 30.

[0041] See also Figure 3 , Figure 4 and Figure 7 The single nickel-hydrogen battery can be in different shapes and sizes. In this embodiment, the single nickel-hydrogen battery is a cylindrical battery 43. More specifically, the outer shell of the cylindrical battery 43 is a steel shell, which can make the cylindrical battery 43 leak-proof and explosion-proof.

[0042] The battery cell 40 further includes a mounting frame 44, which is mounted in the inner cavity 100 and is used to mount the PCBA board 30 and the cylindrical battery 43. The mounting frame 44 protects the cylindrical battery 43 from falling and collision, thereby improving the safety of the 9V rechargeable nickel-hydrogen square battery.

[0043] Several cylindrical batteries 43 are connected in series through a conductive sheet 45, and the positive lead sheet 41 and the negative lead sheet 42 extend above the mounting frame 44 respectively, and are electrically connected to the positive conductive end and the negative conductive end of the PCBA board 30 respectively.

[0044] The mounting frame 44 is provided with a plurality of mounting cavities 441 on opposite side walls, and the mounting cavities 441 are used to mount the cylindrical batteries 43. More specifically, the mounting frame 44 is provided with a connecting hole 442 on the opposite side wall where the mounting cavity 441 is provided, corresponding to the mounting cavity 441, and the connecting hole 442 penetrates the bottom wall of the mounting cavity 441. The mounting cavity 441 and the connecting hole 442 respectively expose the negative electrode and the positive electrode of the cylindrical battery 43 on the side wall of the mounting frame 44, thereby facilitating the serial connection of the plurality of cylindrical batteries 43.

[0045] Furthermore, a connecting groove 443 is provided on the side wall of the mounting frame 44, and the connecting groove 443 connects the mounting cavity 441 and the connecting hole 442 on the same side wall of the mounting frame 44, and the connecting groove 443 is used to accommodate the conductive sheet 45. If several cylindrical batteries 43 are connected in series by wires, the wires will occupy a relatively large space, and the battery cell 40 will be more complicated and the assembly will be more complicated; by accommodating the conductive sheet 45 in the connecting groove 443, it is avoided that several cylindrical batteries 43 are connected in series by welding wires, and it is avoided that the wires occupy a large space in the mounting frame 44, thereby improving the energy density of the battery cell 40.

[0046] See also Figure 6 , Figure 8 and Fig. 9 The mounting frame 44 is provided with a supporting portion 444 protruding in a direction toward the PCBA board 30 , and the supporting portion 444 is used to support the PCBA board 30 .

[0047] More specifically, the support portion 444 is provided with a first limiting protrusion 445, the PCBA board 30 is provided with a limiting groove 33 matched with the first limiting protrusion 445, and the PCBA board 30 is installed on the mounting frame 44 through the matching of the limiting groove 33 and the first limiting protrusion 445. The first limiting protrusion 445 limits the PCBA board 30 to prevent the PCBA board 30 from shaking in the square housing 1.

[0048] Embodiment 2:

[0049] A 9V rechargeable nickel-metal hydride square battery, whose structure is similar to that of the 9V rechargeable nickel-metal hydride square battery in the first embodiment, except that:

[0050] See also Figure 6 , Fig.10 and Fig.11 According to different usage requirements, in order to maximize the energy density of the 9V rechargeable nickel-metal hydride square battery, the single nickel-metal hydride battery is a square battery 46, and several of the square batteries 46 are neatly stacked in the inner cavity 100 to fill the inner cavity 100, so that the space of the inner cavity 100 is fully utilized.

[0051] The outer surface of the battery cell 40 is wrapped with a layer of buffer pad 47. The positive lead-out tab 41 and the negative lead-out tab 42 extend through the buffer pad 47 to the PCBA board 30, and are respectively electrically connected to the positive conductive end and the negative conductive end of the PCBA board 30. The buffer pad 47 protects the plurality of square batteries 46.

[0052] An abutment portion 21 is provided on the inner side wall of the housing 20, and the abutment portion 21 is used to support the PCBA board 30. More specifically, a second limiting protrusion 22 is provided on the abutment portion 21, and the second limiting protrusion 22 cooperates with the limiting groove 33 of the PCBA board 30. The PCBA board 30 is installed on the housing 20 through the cooperation between the limiting groove 33 and the second limiting protrusion 22. The second limiting protrusion 22 limits the PCBA board 30 to prevent the PCBA board 30 from shaking in the square housing 1.

[0053] The utility model provides a 9V rechargeable nickel-hydrogen square battery with the beneficial effects of not only reducing the difficulty of assembling the battery and improving the production efficiency, but also making the charging of the battery simpler and more convenient.

[0054] The above is only a specific implementation of the utility model, but the protection scope of the utility model is not limited thereto. Any technician familiar with the technical field can easily think of changes or substitutions within the technical scope disclosed by the utility model, which should be included in the protection scope of the utility model. Therefore, the protection scope of the utility model should be based on the protection scope of the claims.

Claims

1. A 9V rechargeable nickel-metal hydride square battery, comprising a square housing with an inner cavity and a battery cell arranged in the inner cavity, wherein the square housing comprises a shell and a battery cover covering the shell, and the battery cover is provided with a positive electrode cap and a negative electrode cap, characterized in that: The 9V rechargeable nickel-metal hydride square battery also includes a PCBA board arranged in the inner cavity, the PCBA board is arranged below the battery cover and above the battery cell, an elastic component is arranged on the PCBA board, the elastic component abuts against the positive cap and the negative cap, and the elastic component is electrically connected to the positive cap and the negative cap, the PCBA board has a positive conductive end and a negative conductive end, the elastic component is electrically connected to the positive conductive end and the negative conductive end, the battery cell includes a positive lead-out sheet, a negative lead-out sheet and a plurality of single nickel-metal hydride batteries, the plurality of single nickel-metal hydride batteries are connected in series, the positive lead-out sheet and the negative lead-out sheet are electrically connected to the positive conductive end and the negative conductive end respectively, a USB interface is arranged on the PCBA board, and the USB interface is exposed on the side wall of the square shell.

2. The 9V rechargeable nickel-metal hydride square battery as claimed in claim 1, characterized in that: The elastic component includes a first spring sheet and a second spring sheet, the first spring sheet and the second spring sheet are arranged at intervals on the upper surface of the PCBA board, the first spring sheet and the second spring sheet respectively abut the positive electrode cap and the negative electrode cap, and the first spring sheet and the second spring sheet are respectively electrically connected to the positive conductive end and the negative conductive end.

3. The 9V rechargeable nickel-metal hydride square battery as claimed in claim 2, characterized in that: The positive electrode cap and the negative electrode cap are respectively mounted on the battery cover through a first fixing member and a second fixing member, the first fixing member and the second fixing member respectively penetrate the battery cover, the first elastic sheet and the second elastic sheet respectively abut the first fixing member and the second fixing member, the positive electrode cap is electrically connected to the first elastic sheet through the first fixing member, and the negative electrode cap is electrically connected to the second elastic sheet through the second fixing member.

4. The 9V rechargeable nickel-metal hydride square battery as claimed in claim 1, characterized in that: The USB interface is arranged on the lower surface of the PCBA board.

5. The 9V rechargeable nickel-metal hydride square battery as claimed in claim 1, characterized in that: The single nickel-hydrogen battery is a cylindrical battery. The battery core also includes a mounting frame, which is installed in the inner cavity. The mounting frame is used to install the PCBA board and the cylindrical battery. Several cylindrical batteries are connected in series through conductive sheets.

6. The 9V rechargeable nickel-metal hydride square battery as claimed in claim 5, characterized in that: The mounting frame is provided with a plurality of mounting cavities on opposite side walls, the mounting cavities are used to mount the cylindrical batteries, and the mounting frame is provided with connecting holes on the opposite side walls corresponding to the mounting cavities, the connecting holes penetrate the bottom wall of the mounting cavity.

7. The 9V rechargeable nickel-metal hydride square battery as claimed in claim 6, characterized in that: A connecting groove is also provided on the side wall of the mounting frame, the connecting groove is connected with the mounting cavity and the connecting hole on the same side wall of the mounting frame, and the connecting groove is used to accommodate the conductive sheet.

8. The 9V rechargeable nickel-metal hydride square battery as claimed in claim 1, characterized in that: The single nickel-hydrogen battery is a square battery, and a plurality of the square batteries are neatly stacked in the inner cavity.

9. The 9V rechargeable nickel-metal hydride square battery as claimed in claim 8, characterized in that: The outer surface of the battery core is wrapped with a layer of buffer pad, and the positive electrode lead-out sheet and the negative electrode lead-out sheet pass through the buffer pad.

10. The 9V rechargeable nickel-metal hydride square battery as claimed in claim 8, characterized in that: An abutment portion is provided on the inner side wall of the housing, and the abutment portion is used to support the PCBA board.

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