Battery shell, battery and electric device

Abstract

The embodiment of the invention discloses a battery shell, a battery and a power utilization device, and relates to the technical field of new energy batteries, the battery shell comprises a shell, a positive terminal and a negative terminal; a base is fixedly arranged at the bottom of the shell; at least one pressure bearing part is arranged on the outer surface of the shell; and the positive terminal and the negative terminal are respectively arranged at the top of the shell. The structure of the battery shell is simplified, and the effects of safe and convenient disassembly are achieved.

Description

Technical Field

[0001] The present invention relates to the technical field of new energy batteries, and in particular to a battery housing, a battery and an electrical device. Background Art

[0002] With the advancement of technology, more and more devices are becoming intelligent and electronic, and rechargeable batteries have become the energy source of these devices. Currently, most electronic products that use rechargeable batteries use built-in batteries, directly encapsulating the lithium battery inside the device. This type of built-in electronic product has two major disadvantages: first, damaged batteries are difficult to replace, requiring the replacement of the main device, which wastes resources; second, when the product is discarded, the battery cannot be removed for sorting and recycling, which pollutes the environment.

[0003] Traditional electronic products with replaceable batteries are complicated to operate and have many parts (batteries need to be installed and the back cover needs to be tightened), such as the old traditional flashlight that uses No. 1 dry cell batteries.

[0004] Currently, traditional electronic products have the following main shortcomings: First, damaged batteries are difficult to repair and require the main unit to be disassembled for repair. Currently, the main units of many electronic devices are difficult to disassemble, and many consumers directly discard the main units after use, resulting in a waste of resources; second, it is difficult to remove the battery when the product is discarded for sorting and recycling, and the battery is often discarded with the product, causing environmental pollution. Third, the volume utilization rate of the product is low. The need for a battery cover reduces the space available to accommodate the battery for the same volume, resulting in less space for the product to actually provide energy to the battery, resulting in a decrease in the battery life of the device; fourth, the traditional remote control-style battery replacement method has a high overall internal resistance of the energy storage component due to the large number of connection points of the device. Moreover, with the latest European battery law, the batteries of digital products are required to be removable. Because this can protect the environment (discarding used batteries will pollute the environment) and extend the life of electronic products, traditional electronic products with built-in batteries are directly discarded after the device is no longer usable. There are two main reasons: first, many electronic products are glued during production for the sake of appearance and stability, which is not conducive to subsequent disassembly and recycling; second, disassembling these products requires professional knowledge, and many users lack the corresponding professional knowledge, and the cost of repairing them at repair shops is high. Therefore, in the future, the battery of electronic products will be separated and made into a detachable independent component. This will not only increase the service life of electronic products, but also because the battery circuit is separated from the circuit of the entire device, when the battery is damaged, the user can replace the battery without professional knowledge to determine whether it is the host or the battery that is damaged. When the device is damaged, the battery can be directly removed and recycled separately.

[0005] In the future, it will be a new technological trend to make the energy storage part of traditional electronic products detachable as a whole. These electronic products include but are not limited to handheld fans, flashlights, atomizers, razors, mobile phones, laser pointers and other devices.

[0006] Therefore, the present technology designs a detachable battery with a simple structure. The battery does not have a complicated detachable structure, and utilizes simple physical friction to achieve detachable connection of the battery. Summary of the Invention

[0007] The technical problem to be solved by the embodiments of the present invention is that the battery replacement operation of electronic products is cumbersome.

[0008] In order to solve the above problems, an embodiment of the present invention discloses a battery housing, which simplifies the structure of the battery housing and achieves safe and convenient disassembly.

[0009] In a first aspect, the present invention provides a battery case, which includes a case, a positive terminal and a negative terminal; a base is fixedly provided at the bottom of the case; at least one pressure-bearing portion is provided on the outer surface of the case; the positive terminal and the negative terminal are respectively provided on the top of the case.

[0010] A further technical solution is that the shell is further provided with a limiting portion, and the negative terminal is provided on the limiting portion.

[0011] A further technical solution is that the outer diameter of the base is larger than the outer diameter of the shell.

[0012] A further technical solution is that the pressure-bearing part is made of a heat shrink tube.

[0013] A further technical solution is that the base is provided with a pull ring.

[0014] A further technical solution is that the thickness of the pressure-bearing part gradually increases from top to bottom.

[0015] A further technical solution is that the thickness of the pressure-bearing part ranges from 0.05 mm to 0.35 mm.

[0016] A further technical solution is that it also includes a charging module, the outer surface of the shell is also provided with a charging port, the charging module is arranged in the shell, and the charging port is connected to the charging module.

[0017] A further technical solution is that an air hole and an air duct are further provided at the bottom of the shell, and the air duct is connected to the air hole and the charging port respectively.

[0018] A further technical solution is that the shell is further provided with a limiting groove, and the limiting groove is connected to the airway.

[0019] A further technical solution is that a protrusion is provided on the inner wall of the sleeve, and the protrusion is connected to the limiting groove, or the protrusion is connected to the pressure-bearing part.

[0020] In a second aspect, the present invention further provides a battery, comprising a battery housing as described in any one of the embodiments of the first aspect above.

[0021] In a third aspect, the present invention further provides an electrical device comprising a battery as described in any one of the embodiments of the second aspect above, wherein the battery is used to provide electrical energy.

[0022] Compared with the prior art, the embodiments of the present invention can achieve the following technical effects:

[0023] The connection method between electronic products and batteries is simplified. The positive terminal and the negative terminal are set on the same side. The structure of the shell is simple. The top of the shell is electrically connected to the electronic product. The shell can be separated from the electronic product by pulling the base at the bottom of the shell, which simplifies the structure of the detachable battery. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] 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 description of the embodiments. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0025] Figure 1 A schematic diagram of a battery housing structure provided by an embodiment of the present invention;

[0026] Figure 2 A schematic diagram of another battery housing structure provided by an embodiment of the present invention;

[0027] Figure 3 A schematic diagram of another battery housing structure provided by an embodiment of the present invention;

[0028] Figure 4 for Figure 3 Cross-sectional view at AA in the middle;

[0029] Figure 5 A schematic diagram of another battery housing structure provided by an embodiment of the present invention;

[0030] Figure 6 A schematic diagram of another battery housing structure provided by an embodiment of the present invention;

[0031] Figure 7 A schematic diagram of another battery housing structure provided by an embodiment of the present invention;

[0032] Figure 8 for Figure 7 Cross-sectional view at the middle BB;

[0033] Figure 9 A schematic diagram of another battery housing structure provided by an embodiment of the present invention;

[0034] Figure 10 A schematic diagram of another battery housing structure provided by an embodiment of the present invention;

[0035] Figure 11 A schematic diagram of another battery housing structure provided by an embodiment of the present invention;

[0036] Figure 12 A cross-sectional view of another battery housing structure provided by an embodiment of the present invention;

[0037] Figure 13 A schematic diagram of another battery housing structure provided by an embodiment of the present invention;

[0038] Figure 14 for Figure 13 A cross-sectional view of

[0039] Figure 15 A schematic diagram of another battery housing structure provided by an embodiment of the present invention;

[0040] Figure 16 for Figure 15 A cross-sectional view of

[0041] Figure 17 A schematic diagram of a housing structure provided by an embodiment of the present invention;

[0042] Figure 18 A schematic diagram of another housing structure provided by an embodiment of the present invention;

[0043] Figure 19 A cross-sectional view of a housing and a pressure-bearing portion provided by an embodiment of the present invention;

[0044] Figure 20 A schematic diagram of another battery housing structure provided by an embodiment of the present invention;

[0045] Figure 21 A schematic diagram of another battery housing structure provided by an embodiment of the present invention;

[0046] Figure 22 for Figure 21 A partial enlarged view of

[0047] Figure 23 A schematic diagram of another housing structure provided by an embodiment of the present invention;

[0048] Figure 24 for Figure 23 A partial enlarged view of

[0049] Figure 25 A schematic structural diagram of a housing and a pressure-bearing portion provided by an embodiment of the present invention;

[0050] Figure 26 A schematic diagram of another structure of a housing and a pressure-bearing part provided by an embodiment of the present invention;

[0051] Figure 27 A schematic diagram of another structure of a housing and a pressure-bearing portion provided by an embodiment of the present invention;

[0052] Figure 28 A schematic diagram of another structure of a shell and a pressure-bearing part provided in an embodiment of the present invention.

[0053] Reference numerals

[0054] 1. Shell; 2. Positive terminal; 3. Negative terminal; 11. Base; 12. Pressure-bearing part; 4. Charging module; 13. Charging port; 14. Air hole; 15. Airway; 5. Sleeve; 16. Limiting part; 111. Pull ring; 17. I-type pull ring DETAILED DESCRIPTION

[0055] The following will be combined with the accompanying drawings of the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments. Similar component numbers in the drawings represent similar components. Obviously, the embodiments described below are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0056] It will be understood that when used in this specification and the appended claims, the terms “comprises” and “comprising” indicate the presence of described features, integers, steps, operations, elements and / or components, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components and / or groups thereof.

[0057] It should also be understood that the terms used in this description of the embodiments of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the embodiments of the present invention. As used in the description of the embodiments of the present invention and the appended claims, the singular forms "a", "an", and "the" are intended to include the plural forms unless the context clearly indicates otherwise.

[0058] See also Figure 1-Figure 28An embodiment of the present invention provides a battery case. The battery case includes a case 1, a positive terminal 2, and a negative terminal 3. A base 11 is fixedly provided at the bottom of the case 1. At least one pressure-bearing portion 12 is provided on the outer surface of the case 1. The positive terminal 2 and the negative terminal 3 are respectively provided at the top of the case 1. The components are described in detail below:

[0059] The cross section of the shell 1 is any one of circular, elliptical, and prismatic. It should be noted that the cross section of the shell 1 being any one of circular, elliptical, and prismatic is only an example. Those skilled in the art can also use shells 1 with other cross-sectional shapes, which does not exceed the scope of protection of the present invention. In this embodiment, the cross section of the shell 1 is circular and is made of any one of steel, aluminum, polycarbonate (PC for short), polyethylene (PE for short), and polytetrafluoroethylene (PTFE). The shell 1 and the internal chemical system constitute a complete single cell. In one embodiment, the shell 1 can be loaded with a complete core, such as: a cell, a stacked core (a semi-finished cell prepared by a stacking process that is not packaged, including the positive electrode, diaphragm / electrolyte and negative electrode of the battery), a rolled core (a semi-finished cell prepared by a winding process that is not packaged, including the positive electrode, diaphragm / electrolyte and negative electrode of the battery). The shell 1 has the function of fixing and fully sealing the internal electrochemical system (when the interior is a finished battery, the fully sealed system is formed by the battery packaging material). The top of the shell 1 is provided with a positive terminal 2 and a negative terminal 3, that is, the positive terminal 2 and the negative terminal 3 are installed on the same side of the shell 1. In one embodiment, the positive terminal 2 and the negative terminal 3 adopt a concentric circle structure with positive inside and negative outside, which can effectively avoid the occurrence of positive and negative reverse connection, or the positive terminal 2 and the negative terminal 3 are distributed on the left and right, and the distances from the center of the circle are not equal, forming a non-center symmetrical shape, which can effectively avoid the occurrence of positive and negative reverse connection. In this embodiment, the pressure-bearing part 12 and the shell 1 can be made by an integral forming process, or they can be independent components fixed to the shell 1. There are multiple pressure-bearing parts 12, and the multiple pressure-bearing parts 12 are distributed at equal intervals and are installed around the shell 1. The pressure-bearing part 12 is provided on the outer surface of the shell 1 and on the side of the shell 1 close to the bottom. In one embodiment, the number of pressure-bearing parts 12 is one, for example: see Figure 13-14 The pressure-bearing portion 12 is a strip-shaped structure with a thickness of 0.05 mm and is distributed along the circumference of the housing 1. It is understandable that the closer the pressure-bearing portion 12 is to the base 11, the easier it is to separate the housing 1 from the outer shell of the electronic device. For another example: See Figure 15-16The pressure-bearing portion 12 is a sheet-like structure, distributed along the circumference of the shell 1. It can be understood that the greater the thickness of the pressure-bearing portion 12, the more difficult it is to separate the shell 1 from the outer shell of the electronic device. Generally, the minimum thickness of the pressure-bearing portion 12 is 0.05mm. When the battery made of the shell 1 is inserted into the electronic device, the pressure-bearing portion 12 of the raised part is squeezed and deformed, so that the battery is firmly embedded in the outer shell of the electronic device. The battery will not fall out without a certain external force. It should be noted that those skilled in the art can flexibly adjust the number, shape and position of the pressure-bearing portion 12 on the shell 1, thereby changing the embedding effect. For example: the pressure-bearing portion 12 is a continuous threaded shape. For example: the pressure-bearing portion 12 is arranged near the base 11 of the shell 1, and the pressure-bearing portion 12 is connected to the base 11, so that the shell 1 can be easily inserted / pulled out of the outer shell of the electronic device; the pressure-bearing portion 12 is arranged at a position of the shell 1 away from the base 11, which can enhance the firmness of the shell 1 in the outer shell of the electronic device. The base 11 can be made of an insulating material, or the base 11 can be made of steel or aluminum, and is fixedly connected to the bottom of the shell 1. In one embodiment, the base 11 and the shell 1 are integrally die-cast, and the positive terminal 2 is a cover component with a convex shape at the center, which is made of a conductive metal material. The negative terminal 3 is a component with an annular notch at the center, which is made of a conductive metal material. The annular notch is connected to the connecting port of the microphone (gas sensor) on the circuit board. The radial width of the notch is within 1 mm, and the surface tension of the liquid can prevent the liquid from entering the circuit board. When used on the atomizer, the liquid at the connecting port can be sucked out. Usually, the positive terminal 2 and the negative terminal 3 are filled with insulating material to avoid short circuit caused by contact between the positive terminal 2 and the negative terminal 3. It should be noted that the thickness, length, and shape of the base 11 are not specifically limited. It can be understood that the longer the base 11 is, the more convenient it is for the user to pull it out. See. Figure 17-18 , Figure 17 A schematic diagram of a housing structure provided by an embodiment of the present invention is shown. Figure 18 A schematic diagram of another housing structure provided by an embodiment of the present invention.

[0060] In a specific implementation, the interior of the shell 1 can also be loaded with a power storage module, such as: a capacitor battery cell, an aluminum shell battery cell, a polymer battery cell, a winding core, a stacked core, etc. The shell 1 is used to fix the power storage module and is electrically connected to the power storage module through the positive terminal 2 and the negative terminal 3 respectively. In actual scenarios, according to the distribution position of the positive and negative terminal ears of the battery cell, the positive terminal 2 can be connected to the positive terminal ear by pre-setting a conductive lead in the shell 1, or the negative terminal 3 can be connected to the negative terminal ear by pre-setting a conductive lead. The shell 1 made of conductive metal material can also be directly connected to the negative terminal ear of the battery cell, so that the entire shell 1 serves as a negative terminal. When the housing 1 is used in an atomizer, a circuit board is further provided inside the housing 1, and the circuit board has a starting module such as a gas sensor microphone. Furthermore, the positive terminal 2 is provided with a hollow structure, and the diameter of the hollow structure is less than 1 mm. In this embodiment, the greater the surface tension of the liquid, the closer the diameter of the hollow structure is to 1 mm, and the smaller the surface tension of the liquid, the further the diameter of the hollow structure is from 1 mm. It should be noted that the calculation principle of the surface tension of the liquid can be determined by reference to existing data, and the present invention does not make specific limitations on this. The diameter of the hollow structure is equal from bottom to top, or the diameter of the hollow structure gradually increases from bottom to top (the area close to the gas sensor is the bottom, and the area away from the gas sensor is the top). With the positive terminal 2 designed in this way, due to the surface tension of the liquid, water droplets will form on the metal surface, and will not enter the interior of the housing 1 without external force. Therefore, when the diameter of the hollow structure of the positive terminal 2 is relatively small, the surface tension is greater than the gravity of the liquid, and the liquid will stay on the surface of the positive terminal 2 and will not enter the interior of the housing 1 along the hole. In addition, the hollow structure is made into a structure with equal diameters from bottom to top, or a structure with a diameter that gradually increases from bottom to top. Even if the liquid is subjected to forces other than gravity, the liquid can be discharged by external force each time it is started, thereby protecting the sensor. Further, the hollow structure is made into a structure with a pore size that gradually increases from bottom to top, which increases the difficulty of liquid entering the sensor and reduces the difficulty of liquid discharge. Since the gas sensor works by sensing changes in gas, it must be connected up and down to conduct gas and then control the start and close of the circuit. Therefore, it is impossible to make the gas sensor completely waterproof and oil-proof. The gas sensor microphone will be damaged if it is immersed in liquid for a long time. If the hollow structure is made into a structure with a lower pore diameter larger than the upper pore diameter, water and oil will enter the interior of the shell 1 and cannot escape, eventually damaging the gas sensor.

[0061] In one embodiment, see Figure 25 The longitudinal cross-section of the housing 1 may be a trapezoidal shape with a narrow upper portion and a wide lower portion, and the pressure-bearing portion 12 is independently fixed to the housing 1. In one embodiment, see Figure 26-Figure 28The pressure-bearing part 12 and the shell 1 are made by an integral molding process. The thickness of the pressure-bearing part 12 is the difference between the maximum outer diameter of the shell 1 and the minimum outer diameter of the shell 1. It should be noted that the battery shell is usually provided with a recessed area, and an explosion-proof valve is formed in the recessed area. It is understandable that when measuring or defining the reference benchmark for the outer diameter of the battery shell, the recessed area of the explosion-proof valve is not used as an evaluation basis.

[0062] The technical effects that can be achieved by the battery housing are as follows:

[0063] The connection method between electronic products and batteries is simplified. The positive terminal 2 and the negative terminal 3 are arranged on the same side to avoid battery short circuit and fire caused by reverse installation of the battery. The structure of the shell 1 is simple. The top of the shell 1 is electrically connected to the electronic product. The base 11 at the bottom of the shell 1 can be pulled to separate the shell 1 from the electronic product, simplifying the structure of the detachable battery.

[0064] Continue to see Figure 1-Figure 28 In this embodiment, a charging module 4 is further included. A charging port 13 is provided on the outer surface of the shell 1 . The charging module 4 is provided in the shell 1 , and the charging port 13 is connected to the charging module 4 .

[0065] Specifically, the charging module 4 includes a circuit board, which is provided with multiple components for charging, such as charging interfaces (Micro USB, Type-C, Lightning, and pin contact). The housing 1 is provided with a charging port 13, which is an opening of the housing 1. In this embodiment, the charging module 4 is provided inside the housing 1 and on one side of the housing 1 near the top. In one embodiment, see Figure 10 The charging module 4 and the charging port are respectively arranged on one side of the shell 1 near the bottom. For example, the charging port 13 is arranged on the base 11, so that the battery can be charged without being removed from the product. In some other embodiments, the base 11 and the shell 1 are detachably connected, and the base 11 covers the lower opening of the shell 1, and the charging port 13 is arranged on the base 11.

[0066] Furthermore, the housing 1 is further provided with an air hole 14 and an air duct 15 , and the air duct 15 is communicated with the air hole 14 and the charging port 13 respectively.

[0067] Specifically, air holes 14 can be reserved at the bottom of the housing 1 to connect the interior of the housing 1 with the outside world, thereby enabling gas conduction between the interior of the housing 1 and the outside world. In one embodiment, the housing 1 is used in an atomizer. The air holes 14 provided at the bottom of the housing 1 can conduct the gas generated by the atomizer to prevent the gas generated by the atomizer from being blocked within the housing 1. The air duct 15 is provided on the outer surface of the housing 1. It should be noted that those skilled in the art can flexibly adjust the shape of the air duct 15 and its distribution position on the housing 1 to achieve communication between the charging module 4 inside the housing 1 and the outside of the housing 1.

[0068] Furthermore, the housing 1 is further provided with a limiting portion 16 , and the negative terminal 3 is provided on the limiting portion 16 .

[0069] Specifically, the limiting portion 16 is on the inner wall of the shell 1. In this embodiment, the negative terminal 3 is a ring-shaped component with a gap at the center and is made of conductive metal material. The preset limiting portion 16 can prevent the internal structure of the battery from being damaged when the negative terminal 3 is installed.

[0070] Furthermore, the outer diameter of the base 11 is greater than the outer diameter of the housing 1 .

[0071] Specifically, when the outer diameter of the base 11 is larger than the shell 1, the height of the base 11 can be reduced accordingly, so that the battery shell can also conveniently insert / remove the shell 1 in the outer shell of the electronic device, and the exposed length of the base 11 in the shell 1 is reduced, which is more aesthetically pleasing.

[0072] Furthermore, it further comprises a sleeve 5 , wherein the housing 1 and the pressure-bearing portion 12 are respectively embedded in the sleeve 5 , and the outer diameter of the sleeve 5 is smaller than or equal to the outer diameter of the base 11 .

[0073] Specifically, the sleeve 5 is used to be installed on an electrical device. In one embodiment, the sleeve 5 is fixedly mounted on the electrical device, such as an atomizer. The outer diameter of the housing 1 is smaller than the inner diameter of the sleeve 5, and the housing 1 and the sleeve 5 are detachably connected via the pressure-bearing portion 12 of the housing 1. In one embodiment, the distance between the outer diameter of the housing 1 and the inner diameter of the sleeve 5 is in the range of 0.05 mm to 0.35 mm. When the distance between the outer diameter of the housing 1 and the inner diameter of the sleeve 5 is 0.05 mm, the elastic pressure-bearing portion 12 can be deformed and snapped into the sleeve 5. Without the action of external forces, the housing 1 and the sleeve 5 have a high-strength connection stability, and when an external force is applied, the housing 1 can be easily removed from the sleeve 5. The outer diameter of the base 11 is greater than the outer diameter of the sleeve 5. It can be understood that the difference in outer diameter between the base 11 and the sleeve 5 is ≤0.8mm. For example, after the battery housing is embedded in the sleeve 5, the outer diameter difference between the base 11 and the sleeve 5 is 0.08mm. The contact between the base 11 and the sleeve 5 forms a 2mm force point. The user can hold the sleeve 5 with one hand and pull the force point outward with the other hand to quickly detach the housing 1 from the sleeve 5. For another example, if the outer diameter difference between the base 11 and the sleeve 5 is 0mm, the length of the base 11 can be increased adaptively. The user can hold the sleeve 5 with one hand and pull the base 11 outward with the other hand to quickly detach the housing 1 from the sleeve 5. In some other embodiments, the base 11 can also reserve an annular groove, and a rope can be set on the annular groove of the base 11. Then, the housing 1 can be pulled out of the electrical device by holding the rope. The rope set on the annular groove provides a more secure force point, thereby achieving rapid separation of the battery from the electrical device. The specific numerical settings of the outer diameter of the shell 1 and the inner diameter of the sleeve 5 can be determined according to the material of the shell 1. When the shell 1 is made of one or more metal materials such as alloy materials, steel, aluminum, etc., the thickness of the pressure-bearing part 12 ranges from 0.05mm to 0.15mm, and 0.1mm is usually selected; when the shell 1 is made of plastic, resin and rubber materials, the thickness of the pressure-bearing part 12 is the radial height of the pressure-bearing part 12 on the shell 1, and the thickness range of the pressure-bearing part 12 is 0.05mm to 0.35mm, and 0.2mm is usually selected.

[0074] When the pressure-bearing portion 12 is distributed horizontally on the shell 1 and forms a circle around the shell 1, the thickness of the pressure-bearing portion 12 ranges from 0.05 to 0.10 mm, and 0.08 mm is usually selected. When the pressure-bearing portion 12 is distributed vertically on the shell 1 and multiple pressure-bearing portions 12 are evenly spaced and spread around the shell 1, the thickness of the pressure-bearing portion 12 ranges from 0.15 to 0.35 mm, and 0.2 mm is usually selected. It can be understood that the greater the thickness of the pressure-bearing portion 12, the greater the connection strength between the battery and the sleeve. The thickness of the pressure-bearing portion 12 can be adjusted according to the material, number, and position of the pressure-bearing portion 12. Specifically, when the pressure-bearing portion 12 is made of a soft material, the thickness of the pressure-bearing portion 12 can be appropriately increased. When there are multiple pressure-bearing portions 12, the thickness of the pressure-bearing portion 12 gradually increases from top to bottom.

[0075] Furthermore, the base 11 is provided with a pull ring 111 .

[0076] Specifically, see Figure 11 The pull ring 111 and the base 11 can be formed by integral die-casting, or an axial hole is reserved in the base 11, and the pull ring 111 is passed through the axial hole to achieve a fixed connection between the pull ring 111 and the base 11. The pull ring 111 can be used to more conveniently pull the housing 1 to separate the battery from the electrical product. It should be noted that the pull ring 111 is a structure for assisting disassembly. Considering that the user includes a group of users with less strength, who do not have enough strength to remove the battery from the electronic device, in some other embodiments, see Figure 12 , also provides an I-type pull ring 17, through the rope set in the I-type pull ring 17, pulling the rope can drive the housing 1 and the electrical product to separate. Optimally, see Figure 23-24 The base 11 is provided with an I-shaped pull ring 17. When the base 11 is inserted into the sleeve 5, the bottom surface of the sleeve 5 is flush with the bottom surface of the base 11. This makes it easy to insert and remove the battery housing 1 from the sleeve 5 and improves its aesthetics. In other embodiments, the base 11 has a reserved rope hole. A portion of the rope is passed through the rope hole and positioned inside the battery. This portion of the rope is then knotted or deformed at high temperature so that it is stuck inside the battery. The housing 1 can be separated from the electrical product by pulling the rope.

[0077] Furthermore, the thickness of the pressure-bearing portion 12 gradually increases from top to bottom.

[0078] Specifically, the top of the housing 1 is marked as the upper side, and the bottom of the housing 1 is marked as the lower side. Usually, the top of the housing 1 first enters the interior of the electrical device. Figure 19 The thickness of the pressure-bearing part 12 gradually increases from top to bottom to form a wedge shape. The wedge is a solid object used to strengthen, support or maintain a fixed position. It is mostly used to insert into mortise and tenon joints or gaps to fix or block them. The wedge-shaped pressure-bearing part 12 can effectively strengthen the connection between the shell 1 and the electrical equipment, and make it easier to embed the battery into the shell of the electronic device.

[0079] Furthermore, the thickness of the pressure-bearing portion 12 is in the range of 0.05 mm to 0.35 mm.

[0080] In the integral forming process of the shell 1 and the pressure-bearing part 12, the existing technology requires that the thickness of the pressure-bearing part 12 can be precisely controlled to 0.02mm. However, the processing accuracy requirement of 0.02mm is too high, and the production cost is difficult to control. In this embodiment, the thickness parameter of the pressure-bearing part 12 is relaxed to the range of 0.05mm to 0.35mm, which significantly reduces the processing accuracy requirement, improves the economic efficiency of mass production, and is more suitable for large-scale production. Specifically, multiple pressure-bearing parts 12 are evenly distributed on the side of the shell 1. The radius of the shell 1 is r, and the distance between the pressure-bearing part 12 and the axis of the shell 1 ranges from r+0.05mm to r+0.35mm. For example, the pressure-bearing part 12 is made of elastic material with a thickness of 0.3mm. The distance between the outer diameter of the shell 1 and the inner diameter of the sleeve 5 is 0.2mm. The pressure-bearing part 12 can be fully squeezed between the shell 1 and the sleeve 5 to fix the shell 1 and the sleeve 5 and avoid loosening and separation.

[0081] Typically, the pressure-bearing portion 12 is made of elastic material.

[0082] Specifically, the elastic material includes silicone, styrene-butadiene rubber, chloroprene rubber, polyurethane, propylene-based elastomer, and polyester elastomer. In one embodiment, the elastic pressure-bearing portion 12 can reduce wear of the casing 5 on the pressure-bearing portion 12 when installed in the casing 5, effectively increasing the number of times the battery can be removed. In addition, the compression of the pressure-bearing portion 12 by the casing 1 and the casing 5 can improve the stability of the connection between the battery and the casing 5.

[0083] In one embodiment, the pressure-bearing portion 12 is made of heat-shrink tubing, typically PVC (PVC), a plastic material with insulating properties. The pressure-bearing portion 12 is formed by stacking multiple layers of PVC material after heat shrinking. Heat-shrink tubing shrinks when heated, simplifying the manufacturing process. For example, a heat-shrink tubing of a predetermined thickness shrinks to 0.02 mm. Adjusting the number of layers of heat-shrink tubing can correspondingly change the thickness of the pressure-bearing portion 12, achieving high-precision thickness adjustment of the pressure-bearing portion 12 at a low cost.

[0084] The present invention also provides a battery, comprising the battery housing as described in any one of the above embodiments.

[0085] Specifically, when the battery is loaded into an electrical device, the pressure-bearing portion 12 on the side of the shell 1 will clamp the battery into the outer shell of the electrical device, so that the battery will not slide out of the outer shell of the electrical device without the action of external force. Under the action of external force, since the battery and the electrical device are not locked, it can be easily separated from the outer shell of the electrical device. This battery structure is simple and simplifies the structure of the detachable battery.

[0086] The present invention further provides an electrical device comprising a battery as described in any one of the above embodiments, wherein the battery is used to provide electrical energy.

[0087] Specifically, the electrical device includes a mobile phone, an atomizer, a flashlight, etc. In one embodiment, the sleeve 5 can be fixedly mounted on the electrical device to achieve a detachable connection between the battery and the sleeve 5.

[0088] In the above embodiments, the description of each embodiment has its own focus. For parts that are not described in detail in a certain embodiment, reference can be made to the relevant descriptions of other embodiments.

[0089] 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" 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, rather than indicating or implying 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 limiting the present invention.

[0090] 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 identified as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, "plurality" means two or more, unless otherwise specifically defined.

[0091] In the present invention, unless otherwise expressly specified or limited, terms such as "mounted," "connected," "connect," and "fixed" should be understood broadly. For example, they may refer to connection, detachable connection, or integration; mechanical connection or electrical connection; direct connection or indirect connection through an intermediate medium; and internal communication between two components or interaction between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on specific circumstances.

[0092] In the present invention, unless otherwise expressly specified or limited, a first feature being "above" or "below" a second feature may include the first and second features being in direct contact, or may include the first and second features being in contact not directly but through another feature between them. Furthermore, a first feature being "above," "above," and "above" a second feature may include the first feature being directly above or obliquely above the second feature, or may simply mean that the first feature is higher in level than the second feature. A first feature being "below," "below," and "below" a second feature may include the first feature being directly below or obliquely below the second feature, or may simply mean that the first feature is lower in level than the second feature.

[0093] In the description of this specification, the reference terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" mean that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic expressions of the above terms should not be understood as necessarily referring to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art can combine and combine different embodiments or examples described in this specification.

[0094] Obviously, those skilled in the art may make various changes and modifications to the present invention without departing from the spirit and scope of the present invention. Thus, to the extent such changes and modifications fall within the scope of the claims and their equivalents, the present invention is intended to encompass such changes and modifications.

[0095] The above description is a specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any person skilled in the art can easily conceive of various equivalent modifications or substitutions within the technical scope disclosed in the present invention, and such modifications or substitutions are intended to be within the scope of protection of the present invention. Therefore, the scope of protection of the present invention shall be subject to the scope of protection of the claims.

Claims

1. A battery housing, characterized in that: including a housing, a positive terminal, and a negative terminal; A base is fixedly provided at the bottom of the shell; The outer surface of the shell is provided with at least one pressure-bearing portion; The positive terminal and the negative terminal are respectively arranged on the top of the shell.

2. The battery case according to claim 1, wherein: The shell is further provided with a limiting portion, and the negative terminal is provided on the limiting portion.

3. The battery case according to claim 1, wherein: The outer diameter of the base is greater than the outer diameter of the shell.

4. The battery case according to claim 1, wherein: The pressure-bearing part is made of a heat shrink tube.

5. The battery case according to claim 1, wherein: The base is provided with a pull ring.

6. The battery case according to claim 1, wherein: The thickness of the pressure-bearing portion gradually increases from top to bottom.

7. The battery case according to claim 1, characterized in that The thickness of the pressure-bearing portion ranges from 0.05 mm to 0.35 mm.

8. The battery case according to claim 1, wherein: It also includes a charging module. The outer surface of the shell is also provided with a charging port. The charging module is arranged in the shell, and the charging port is connected to the charging module.

9. The battery case according to claim 8, characterized in that The shell is further provided with an air hole and an air duct, and the air duct is connected to the air hole and the charging port respectively.

10. A battery, characterized in that: The battery case comprises the battery case according to any one of claims 1 to 9.

11. An electrical device, characterized in that: The battery of claim 10 is used to provide electrical energy.

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