Nickel-metal hydride battery with charging interface and assembly method thereof

Abstract

The invention provides a nickel-metal hydride battery with a charging interface and an assembling method thereof, the charging interface is arranged on the bottom surface of a protective plate, the opening of the charging interface faces the edge of the protective plate, the protective plate is arranged on an insulating support, the charging interface is clamped in a notch of the insulating support, and an elastic connecting piece penetrates through a through hole of the insulating support and is connected with the protective plate. One end of the elastic connecting piece is connected with the protection plate, the other end of the elastic connecting piece is connected with a positive pole of the battery assembly, the metal sleeve covers the protection plate and the insulation support, a window of the metal sleeve is opposite to an opening position of the charging interface, the protection plate abuts against the metal sleeve, and the metal sleeve is installed on a shell of the battery core assembly. A charging line can be inserted into the charging interface to be connected with a power supply for charging, the charging interface can be designed into any charging interface commonly used in the market, the universality is high, the charging ecological compatibility is achieved, the charging convenience is improved, the structure is stable and reliable, and implementation is easy.

Description

Technical field

[0001] The present invention relates to the technical field of batteries, and in particular to a nickel-hydrogen battery with a charging interface and an assembly method thereof. [Background Technology]

[0002] Traditional nickel-metal hydride batteries have no charging port and require a dedicated charger for charging. If they rely on a dedicated charging stand, users need to carry an additional charger, which is incompatible with the charging ecosystem of other electronic devices (such as mobile phones and tablets) and has poor charging convenience.

[0003] In view of this, it is necessary to provide a new type of nickel-metal hydride battery with a charging interface and an assembly method thereof to overcome the above-mentioned defects. [Summary of the invention]

[0004] The purpose of the present invention is to provide a nickel-metal hydride battery with a charging interface and an assembly method thereof to solve the above technical problems.

[0005] In order to achieve the above-mentioned objectives, in the first aspect, the present invention provides a nickel-hydrogen battery with a charging interface, comprising a battery cell assembly, an insulating bracket, an elastic connector, a protective plate, a charging interface and a metal sleeve, a positive pole being provided at one end of the battery cell assembly, the charging interface being provided on the bottom surface of the protective plate, the opening of the charging interface facing the edge of the protective plate, a notch being provided on the side of the insulating bracket, the protective plate being provided on the insulating bracket and the charging interface being clamped in the notch, the insulating bracket also being provided with a through hole, the elastic connector passing through the through hole, one end of the elastic connector being connected to the protective plate, and the other end of the elastic connector being connected to the positive pole, the metal sleeve being provided with a window, the metal sleeve cover being provided on the protective plate and the insulating bracket, and the window being opposite to the opening position of the charging interface, the protective plate being against the metal sleeve, and the metal sleeve being installed on the outer shell of the battery cell assembly.

[0006] In a preferred embodiment, the metal sleeve includes a top wall and a side wall connected to the edge of the top wall and arranged perpendicular to the top wall, the top wall and the side wall form a receiving space, and the protective plate and the insulating bracket are received in the receiving space; the window is opened on the side wall.

[0007] In a preferred embodiment, a raised cap is provided on the top surface of the protection plate, a through hole is opened on the top wall, and the cap passes through the through hole when the metal cover is arranged on the protection plate and the insulating bracket.

[0008] In a preferred embodiment, an insulating sealing ring is sleeved on one end of the cap close to the protection plate.

[0009] In a preferred embodiment, the battery cell assembly also includes a battery cell, one end of the shell is open, and the shell includes a circular bottom wall and a peripheral wall connected to the edge of the bottom wall and arranged perpendicular to the bottom wall, the bottom wall and the peripheral wall form a cavity for accommodating the battery cell, and the peripheral wall is rolled with a groove near the position of the open end.

[0010] In a preferred embodiment, one end of the side wall away from the top wall extends to the groove, and the one end of the side wall away from the top wall is fixed in the groove.

[0011] In a preferred embodiment, one end of the side wall away from the top wall extends to the bottom wall, and the side wall wraps the outer peripheral wall and the bottom wall.

[0012] In a preferred embodiment, the protection plate is provided with a positive contact and a negative contact, the positive contact is electrically connected to the elastic connector, and the negative contact is electrically connected to the metal sleeve.

[0013] In a preferred embodiment, the charging interface is a type-c interface, a Lightning interface, or a Micro-USB interface.

[0014] In a second aspect, the present invention provides a method for assembling a nickel-hydrogen battery. The method is used to assemble a nickel-hydrogen battery with a charging port as described above, and the method comprises the following steps:

[0015] Install the charging port on the bottom of the protection plate;

[0016] Place the protection plate on the insulating bracket and hold the charging interface in the notch of the insulating bracket;

[0017] Connect one end of the elastic connector to the protection plate, pass the other end of the elastic connector through the through hole of the insulating bracket, and connect the other end of the elastic connector to the positive electrode of the battery cell assembly;

[0018] The metal sleeve is arranged on the protection plate and the insulating bracket, and the metal sleeve is installed on the outer shell of the battery cell assembly, and the window on the metal sleeve is opposite to the opening position of the charging interface.

[0019] Compared with the prior art, the nickel-hydrogen battery with a charging interface and the assembly method thereof provided by the present invention have the following characteristics: the charging interface is arranged on the bottom surface of the protective plate, the opening of the charging interface faces the edge of the protective plate, the protective plate is arranged on the insulating bracket and the charging interface is clamped in the notch of the insulating bracket, the elastic connector passes through the through hole of the insulating bracket, one end of the elastic connector is connected to the protective plate, and the other end of the elastic connector is connected to the positive electrode post of the battery assembly, the metal sleeve is arranged on the protective plate and the insulating bracket, and the window of the metal sleeve is opposite to the opening position of the charging interface, the protective plate abuts against the metal sleeve, and the metal sleeve is installed on the outer shell of the battery cell assembly, so that the protective plate is in contact and conductive with the positive electrode post of the battery cell assembly through the elastic connector, the protective plate is in contact and conductive with the outer shell of the battery cell assembly through the metal sleeve, the window of the metal sleeve is opposite to the opening position of the charging interface, the charging interface can be inserted with a charging cable to connect to a power source for charging, and the charging interface can be designed as any charging port commonly used on the market, with strong versatility, no need to be equipped with a dedicated charging seat, with charging ecological compatibility, improved charging convenience, stable and reliable structure, and easy to implement.

Brief Description of the Drawings

[0020] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for use in the embodiments. It should be understood that the following drawings only illustrate certain embodiments of the present invention and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying any creative work.

[0021] Figure 1 A structural diagram of a nickel-metal hydride battery with a charging interface provided in one embodiment of the present invention;

[0022] Figure 2 for Figure 1 Another structural diagram of a nickel-metal hydride battery with a charging port is shown;

[0023] Figure 3 This is a structural diagram of a nickel-metal hydride battery with a charging port provided in another embodiment of the present invention. [Specific implementation method]

[0024] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, not all of the embodiments. The components of the embodiments of the present invention generally described and shown in the drawings herein can be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiments of the present invention provided in the drawings is not intended to limit the scope of the claimed invention, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without making creative work are within the scope of protection of the present invention.

[0025] See also Figure 1 , which is a structural diagram of a nickel-metal hydride battery 100 with a charging interface provided by one embodiment of the present invention. The nickel-metal hydride battery 100 with a charging interface provided by the present invention has a commonly used charging port on the market, eliminating the need for a dedicated charging dock. It is highly versatile and compatible with mainstream electronic devices such as mobile phones and laptops, meeting users' demand for "one-line multi-purpose" and improving charging convenience.

[0026] Please also refer to Figure 1 and Figure 2 The nickel-metal hydride battery 100 with a charging interface includes a battery cell assembly 10 , an insulating bracket 20 , an elastic connector 30 , a protection plate 40 , a charging interface 50 and a metal sleeve 60 .

[0027] A positive electrode post 11 is provided at one end of the battery cell assembly 10, the charging interface 50 is provided on the bottom surface of the protective plate 40, and the opening 501 of the charging interface 50 faces the edge of the protective plate 40. A notch 201 is provided on the side of the insulating bracket 20, the protective plate 40 is provided on the insulating bracket 20 and the charging interface 50 is clamped in the notch 201, the insulating bracket 20 also has a through hole 202, the elastic connector 30 passes through the through hole 202, one end of the elastic connector 30 is connected to the protective plate 40, and the other end of the elastic connector 30 is connected to the positive electrode post 11, the metal sleeve 60 has a window 601, the metal sleeve 60 is covered with the protective plate 40 and the insulating bracket 20, and the window 601 is opposite to the opening 501 of the charging interface 50, the protective plate 40 abuts against the metal sleeve 60, and the metal sleeve 60 is installed on the shell 12 of the battery cell assembly 10.

[0028] Specifically, the protection board 40 can be a circuit board integrated with an intelligent management chip. The intelligent management chip has a charging management function and can monitor the voltage, current, temperature, etc. during the charging process, which can improve charging safety and charging efficiency. The protection board 40 can be provided with positive and negative contacts to respectively connect the positive and negative poles of the battery cell assembly 10 to realize the charging function. The elastic connector 30 connected to the bottom of the protection board 40 can be in contact with the positive pole 11 of the battery cell assembly 10, and the protection board 40 is in contact with the outer shell 12 of the battery cell assembly 10 through the metal sleeve 70. The charging interface 50 can be inserted with a charging cable to connect to the power supply, thereby forming a charging circuit and realizing the external power supply of the nickel-hydrogen battery to charge the battery. The charging interface 50 can be designed as any charging port commonly used on the market, with strong versatility, without the need for a dedicated charging seat, and improving charging convenience. It can be understood that a conductive sheet can be provided in the opening 501 of the charging interface 50, and the conductive sheet is electrically connected to the protection board to realize circuit conduction.

[0029] The protective plate 40 is connected to the positive electrode 11 of the battery cell assembly 10 through an elastic connector 30, which further improves the conductivity between the circuits and reduces the possibility of loosening and poor contact during use. In addition, the metal sleeve 60 is installed on the outer shell 11 of the battery cell assembly 10, which further increases the conductivity of the circuit and prevents the possibility of loosening, poor contact or increased impedance between the metal sleeve 60 and the battery cell assembly 10 when the battery is dropped or impacted. In addition, the structure requires fewer related combined materials and a simple combination method, without the need for additional special equipment, which further simplifies the assembly method and improves assembly efficiency.

[0030] Therefore, the nickel-metal hydride battery 100 with a charging interface provided by the present invention has a charging interface 50 arranged on the bottom surface of the protective plate 40, an opening 501 of the charging interface 50 facing the edge of the protective plate 40, the protective plate 40 is arranged on the insulating bracket 20 and the charging interface 50 is clamped in the notch 201 of the insulating bracket 20, the elastic connector 30 passes through the through hole 202 of the insulating bracket 20, one end of the elastic connector 30 is connected to the protective plate 40, and the other end of the elastic connector 30 is connected to the positive electrode 11 of the battery assembly 10, the metal sleeve 60 is covered on the protective plate 40 and the insulating bracket 20, and the window 601 of the metal sleeve 60 is opposite to the opening 501 of the charging interface 50, and the protective plate 40 abuts against the metal sleeve 60, and the metal sleeve 60 is installed on the shell 12 of the battery cell assembly 10, so that the protection plate 40 is in contact and conductive with the positive pole 11 of the battery cell assembly 10 through the elastic connector 30, and the protection plate 40 is in contact and conductive with the shell 12 of the battery cell assembly 10 through the metal sleeve 60. The window 601 of the metal sleeve 60 is opposite to the opening 501 of the charging interface 50. The charging cable can be inserted into the charging interface 50 to connect to the power supply for charging. The charging interface 50 can be designed as any charging port commonly used on the market. It has strong versatility, does not require a dedicated charging stand, has charging ecological compatibility, improves charging convenience, has a stable and reliable structure, and is easy to implement.

[0031] The battery cell assembly 10 also includes a battery cell 13. Specifically, the outer shell 12 is a cylindrical steel shell. The outer shell 12 includes a bottom wall 121 and an outer peripheral wall 122 connected to the bottom wall 121 and arranged perpendicular to the bottom wall. The bottom wall 121 and the outer peripheral wall 122 form a cavity, and the battery cell 13 is accommodated in the cavity. Specifically, the outer shell 12 is open at one end away from the bottom wall 121, and the positive pole 11 at one end of the battery cell 13 extends out of the end of the outer shell opening. The outer peripheral wall 122 is rolled with a groove 123 near the end of the opening. The rolled groove 123 can make the battery cell 13 more stably fixed in the outer shell 12 to prevent the battery cell from shaking. The position of the groove 123 is at the shoulder height of the battery cell assembly 10.

[0032] The battery cell 13 is cylindrical and can be made by winding a positive electrode sheet, a separator, and a negative electrode sheet. The battery cell 13 includes a positive terminal surface and a negative terminal surface opposite to the positive terminal surface. The negative terminal surface of the battery cell is welded to the bottom wall of the shell to lead out the negative electrode of the battery, and the positive terminal surface of the battery cell is welded to the positive electrode column 11 to lead out the positive electrode of the battery.

[0033] The insulating bracket 20 can be, but is not limited to, a plastic bracket that can provide insulation. Other brackets that can provide insulation are also applicable. The insulating bracket 20 is located at one end of the opening of the housing 12 .

[0034] The elastic connector 30 can be configured as a nickel-plated metal spring to ensure the conduction of the circuit, and while ensuring conduction, it has a certain elasticity, which can play a buffering role and extend the service life of the nickel-hydrogen battery; it can be understood that the material used to make the elastic connector 30 needs to be able to ensure the conduction of the circuit, including but not limited to nickel-plated metal springs, copper-plated metal springs, etc.

[0035] In order to ensure that the elastic connector 30 can smoothly pass through the insulating bracket 20 and then abut against the positive electrode column of the battery cell assembly 10, a through hole 202 is opened on the insulating bracket 20 for the elastic connector 30 to pass through. One end of the elastic connector 30 passes through the through hole 202 to reach the positive electrode column 11 of the battery cell assembly 10 to complete the conduction. The provision of the through hole 202 can also serve to fix the elastic connector 30, so that the elastic connector 30 and the positive electrode column 11 of the battery cell assembly 10 can complete stable and reliable contact.

[0036] The protection plate 40 has a charging management function, can support the USB-PD fast charging protocol, and improve the charging efficiency. Specifically, the protection plate 40 is provided with a positive contact and a negative contact. The positive contact is electrically connected to the elastic connector 30, and the negative contact is electrically connected to the metal sleeve 60 to realize the charging circuit conduction. Preferably, the edge of the protection plate 40 is welded to the top edge of the metal sleeve 60. Use a welder to weld the edge of the negative contact position on the front of the protection plate 40 to the edge position of the metal sleeve 60 to ensure that the negative contact is conductive with the negative pole of the battery, which can not only ensure that the negative pole of the protection plate 40 is in contact with the metal sleeve 60, but also prevent poor contact or even circuit breakage caused by loosening and displacement of the protection plate 40 during use.

[0037] The charging interface 50 is a type-c interface, a Lightning interface, or a Micro-USB interface. In order to expand the charging method of the nickel-metal hydride battery, the charging interface 50 can be set to an Android interface (i.e., a Micro-USB interface), or it can be set to a type-c interface, and it can also be set to a Lightning interface. These three interfaces are all relatively commonly used charging interfaces, and the interface is designed according to different charging needs, making it more applicable. In addition, in view of the above-mentioned charging interface 50, a variety of charging interfaces with different structures can be set, so that the charging method of the nickel-metal hydride battery is not limited to any one interface charging, or a data line can be led out at the charging interface 50, and the charging head can be directly connected to the charging head through the data line for charging, so as to achieve an aesthetic effect.

[0038] The metal sleeve 60 includes a top wall 61 and a side wall 62 connected to the edge of the top wall 61 and perpendicular to the top wall 61. The top wall 61 and the side wall 62 form a receiving space, and the protection plate 40 and the insulating bracket 20 are received in the receiving space; the window 601 is opened on the side wall 62.

[0039] Specifically, to accommodate the charging port 50, the insulating bracket 20 is provided with a notch 201 that aligns with the charging port 50, and the sidewall 62 of the metal sleeve 60 is provided with a window 601 that aligns with the charging port 50. The notch 201 in the insulating bracket 20 allows for positioning the charging port 50. Once the insulating bracket 20 and protective plate 40 are assembled into the metal sleeve 60, the window 601 is aligned with the charging port 50, allowing the nickel-metal hydride battery to be charged via a data cable connected to the charging port 50.

[0040] A raised cap 41 is provided on the top surface of the protection plate 40 , and a through hole 611 is opened on the top wall 61 of the metal sleeve 60 . When the metal sleeve 60 is covered on the protection plate 40 and the insulating bracket 20 , the cap 41 passes through the through hole 611 .

[0041] Specifically, a cap 41 is provided on the top of the protection plate 40, which can be in contact with the electrical equipment. By providing a cap 41 on the protection plate 40, contact and conduction with the electrical equipment can be completed through the cap 41, and the cap 41 is protruding from the top of the protection plate 40, which makes contact easy and ensures effective connection.

[0042] It can be understood that the cap 41 needs to be insulated from the metal sleeve 60. Therefore, an insulating sealing ring 411 is provided on the end of the cap 41 close to the protective plate 40. After the cap 41 passes through the through hole 611, the metal sleeve 60 at the edge of the through hole 611 abuts against the insulating sealing ring 411. The insulating sealing ring can specifically be a rubber ring, which can have both insulating and sealing effects.

[0043] In this embodiment, the side wall 62 of the metal sleeve 60 extends from the top wall 61 to the groove 123, and the end of the side wall 62 away from the top wall 61 is fixed in the groove 123 of the housing 12. That is, the bottom end of the metal sleeve 60 is mounted at the shoulder height of the battery cell assembly 10 and can be fixed in the groove 123 by a sealing machine. This can effectively prevent loosening and poor contact during use. It can also prevent loosening, poor contact, or increased impedance between the metal sleeve 60 and the battery cell assembly 10 when the battery is dropped or impacted, simplifying the assembly method and improving assembly efficiency.

[0044] The battery structure of this embodiment connects the protection plate 40 and the battery cell assembly 10 together through the elastic connector 30, which further improves the conductivity between the circuits and reduces the possibility of looseness and poor contact during use. In addition, the metal sleeve 60 is combined with the shoulder height of the battery cell assembly 10 by closing the mouth, which further increases the conductivity of the circuit and prevents the possibility of loose contact or increased impedance between the metal sleeve 60 and the battery cell assembly 10 when the battery is dropped or hit. In addition, the structure requires fewer related combination materials and a simple combination method, without the need for additional special equipment, which further simplifies the assembly method and improves assembly efficiency.

[0045] See also Figure 3 In another embodiment, the side wall 62 extends from one end of the top wall 61 to the bottom wall 121, and the side wall 62 wraps the outer wall 122 and the bottom wall 121, that is, the battery assembly 10 is completely installed inside the metal sleeve 60, which effectively prevents the loosening and poor contact caused by the use of the battery. It can also avoid the loosening, poor contact or increased impedance of the metal sleeve 60 and the battery cell assembly 10 when the battery is dropped or hit, simplifying the assembly method and improving the assembly efficiency.

[0046] The battery structure of this embodiment connects the protective plate 40 and the battery cell assembly 10 together through an elastic connector 30, which further improves the ease of assembly and reduces the possibility of looseness and poor contact during use; the metal sleeve 60 completely wraps the battery cell assembly 10, and the side wall 62 of the metal part 60 is fixed to the bottom wall 121 of the shell 12 by a closing machine, which can enhance the structural stability and further protect the battery cell assembly; in addition, the structure requires fewer related combination materials and a simple combination method, without the need for additional special equipment, which further simplifies the assembly method and improves assembly efficiency.

[0047] The nickel-metal hydride battery 100 with a charging interface provided by the present invention realizes fast charging and compatible data transmission by designing a charging interface. It has strong versatility and is compatible with mainstream devices such as mobile phones and notebooks. It does not need to match a dedicated charging stand for charging, and meets the user's "one-line multi-purpose" demand. Through, for example, the integration of the Type-C charging interface and the intelligent management chip, the charging interface can achieve high-power transmission (support USB PD, up to 100W), positive and negative plug-in design, and compatible data transmission, solving the core pain points of traditional nickel-metal hydride batteries in compatibility, safety and efficiency. At the same time, combined with the elastic connector structure and the use of high thermal conductivity materials, a dual breakthrough in protection and heat dissipation is achieved, the structure is highly stable, and it has significant technological progress and market application value. This application can promote the intelligent upgrade of traditional nickel-metal hydride batteries and meet the dual needs of modern users for convenient charging and high safety. It breaks the interface barriers between traditional batteries and devices and realizes "one charge for multiple uses". It has a simple structure, is easy to process, and has a stable and reliable overall structure.

[0048] The present invention further provides a method for assembling a nickel-hydrogen battery, the method being used for assembling a nickel-hydrogen battery with a charging port as described in any one of the above embodiments, the method comprising the following steps:

[0049] Install the charging port on the bottom of the protection plate;

[0050] Place the protection plate on the insulating bracket and hold the charging interface in the notch of the insulating bracket;

[0051] Connect one end of the elastic connector to the protection plate, pass the other end of the elastic connector through the through hole of the insulating bracket, and connect the other end of the elastic connector to the positive electrode of the battery cell assembly;

[0052] The metal sleeve is arranged on the protection plate and the insulating bracket, and the metal sleeve is installed on the outer shell of the battery cell assembly, and the window on the metal sleeve is opposite to the opening position of the charging interface.

[0053] In the assembly method provided by this embodiment, the elastic connector 30 connected to the bottom of the protection plate 40 passes through the metal sleeve 60 to contact and conduct with the positive electrode column 11 of the battery cell assembly 10, and the insulating bracket 20 and the protection plate 40 are pre-installed and fixed as a whole assembly and loaded into the metal sleeve 60 for final fixation. The metal sleeve 60 is installed on the outer shell 12 of the battery cell assembly 10 by means of a sealing machine, which effectively prevents loosening and poor contact during use, and can also avoid loosening, poor contact or increased impedance between the metal sleeve 60 and the battery cell assembly 10 when the battery is dropped or hit, thereby simplifying the assembly method and improving assembly efficiency.

[0054] In summary, the nickel-metal hydride battery 100 with a charging interface and its assembly method provided by the present invention comprises the following: the charging interface 50 is provided on the bottom surface of the protective plate 40, the opening 501 of the charging interface 50 faces the edge of the protective plate 40, the protective plate 40 is provided on the insulating bracket 20, and the charging interface 50 is clamped in the notch 201 of the insulating bracket 20; the elastic connector 30 passes through the through hole 202 of the insulating bracket 20, one end of the elastic connector 30 is connected to the protective plate 40, and the other end of the elastic connector 30 is connected to the positive electrode 11 of the battery assembly 10; the metal sleeve 60 is provided to cover the protective plate 40 and the insulating bracket 20, and the window 601 of the metal sleeve 60 is opposite to the opening 501 of the charging interface 50. The protection plate 40 abuts against the metal sleeve 60, and the metal sleeve 60 is installed on the outer shell 12 of the battery cell assembly 10, so that the protection plate 40 is in contact and conductive with the positive pole 11 of the battery cell assembly 10 through the elastic connector 30. The protection plate 40 is in contact and conductive with the outer shell 12 of the battery cell assembly 10 through the metal sleeve 60. The window 601 of the metal sleeve 60 is opposite to the opening 501 of the charging interface 50. The charging cable can be inserted into the charging interface 50 to connect to the power supply for charging. The charging interface 50 can be designed as any charging port commonly used on the market. It has strong versatility and does not require a dedicated charging stand. It has charging ecological compatibility, improves charging convenience, has a stable and reliable structure, and is easy to implement.

[0055] The above description is only an embodiment of the present invention and does not limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made by using the contents of the description and drawings of the present invention, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A nickel-metal hydride battery with a charging interface, characterized in that: It includes a battery cell assembly, an insulating bracket, an elastic connector, a protective plate, a charging interface and a metal sleeve, a positive pole is provided at one end of the battery cell assembly, the charging interface is provided on the bottom surface of the protective plate, the opening of the charging interface faces the edge of the protective plate, a notch is provided on the side of the insulating bracket, the protective plate is provided on the insulating bracket and the charging interface is clamped in the notch, the insulating bracket also has a through hole, the elastic connector passes through the through hole, one end of the elastic connector is connected to the protective plate, and the other end of the elastic connector is connected to the positive pole, the metal sleeve has a window, the metal sleeve cover is provided on the protective plate and the insulating bracket, and the window is opposite to the opening position of the charging interface, the protective plate abuts against the metal sleeve, and the metal sleeve is installed on the outer shell of the battery cell assembly.

2. The nickel-metal hydride battery with a charging port as claimed in claim 1, characterized in that: The metal sleeve includes a top wall and a side wall connected to the edge of the top wall and arranged perpendicular to the top wall. The top wall and the side wall form a receiving space, and the protection plate and the insulating bracket are received in the receiving space; the window is opened on the side wall.

3. The nickel-metal hydride battery with a charging port as claimed in claim 2, characterized in that: The top surface of the protection plate is provided with a raised cap, and the top wall is provided with a through hole. When the metal cover is arranged on the protection plate and the insulating bracket, the cap passes through the through hole.

4. The nickel-metal hydride battery with a charging port as claimed in claim 3, characterized in that: An insulating sealing ring is sleeved on one end of the cap close to the protection plate.

5. The nickel-metal hydride battery with a charging port as claimed in claim 2, characterized in that: The battery cell assembly also includes a battery cell. One end of the shell is open. The shell includes a circular bottom wall and an outer peripheral wall connected to the edge of the bottom wall and arranged perpendicular to the bottom wall. The bottom wall and the outer peripheral wall form a cavity for accommodating the battery cell. The outer peripheral wall is rolled with a groove near the open end.

6. The nickel-metal hydride battery with a charging port as claimed in claim 5, characterized in that: One end of the side wall away from the top wall extends to the groove, and one end of the side wall away from the top wall is fixed in the groove.

7. The nickel-metal hydride battery with a charging port as claimed in claim 5, characterized in that: One end of the side wall away from the top wall extends to the bottom wall, and the side wall wraps the outer peripheral wall and the bottom wall.

8. The nickel-metal hydride battery with a charging port as claimed in claim 1, wherein: The protection plate is provided with a positive contact and a negative contact, the positive contact is electrically connected to the elastic connector, and the negative contact is electrically connected to the metal sleeve.

9. The nickel-metal hydride battery with a charging port according to any one of claims 1 to 8, characterized in that: The charging interface is a type-c interface, a Lightning interface, or a Micro-USB interface.

10. A method for assembling a nickel-hydrogen battery, characterized in that: The assembly method is used to assemble the nickel-metal hydride battery with a charging interface according to any one of claims 1 to 9, and the assembly method comprises the following steps: Install the charging port on the bottom of the protection plate; Place the protection plate on the insulating bracket and hold the charging interface in the notch of the insulating bracket; Connect one end of the elastic connector to the protection plate, pass the other end of the elastic connector through the through hole of the insulating bracket, and connect the other end of the elastic connector to the positive electrode of the battery cell assembly; The metal sleeve is arranged on the protection plate and the insulating bracket, and the metal sleeve is installed on the outer shell of the battery cell assembly, and the window on the metal sleeve is opposite to the opening position of the charging interface.

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