Battery and mobile device

Abstract

The utility model belongs to mobile device technical field discloses battery and mobile device, and battery includes battery shell, and the battery shell is used for installing in the piece to be installed, and the battery shell is provided with first magnetic element, and the inside of piece to be installed is provided with second magnetic element, along the length direction or width direction of battery, the battery shell has first end and second end, the first magnetic element includes a plurality of magnetic attraction parts, a plurality of magnetic attraction parts can all be with second magnetic element magnetic attraction, and part magnetic attraction part sets up in first end, part magnetic attraction part sets up in second end, thereby makes at least part magnetic attraction part distribution on the both ends of battery shell along the length direction or width direction of battery, has increased the stress point between battery shell and piece to be installed, thereby makes the connection between battery shell and piece to be installed more stable.

Description

Technical Field

[0001] This utility model relates to the field of mobile device technology, and in particular to batteries and mobile devices. Background Technology

[0002] Steel-cased lithium-ion batteries are widely used in mobile devices such as smartphones due to their advantages of high energy density, stable physical properties, high capacity and space utilization, and good heat dissipation. However, the current unibody design concept means that most mobile phone batteries are designed as internal batteries, which are either non-removable or difficult to remove. This not only affects the portability of mobile phones for consumers but also creates potential environmental and health risks in addition to economic losses.

[0003] To address this, a related technology provides a magnetically detachable battery mobile phone, comprising a phone body and a magnetic battery. The phone body has a magnetic connector insert, and the magnetic battery has a magnetic connector assembly. The magnetic battery can be removed and replaced by utilizing the magnetic attraction between the magnetic connector insert and the magnetic connector assembly. However, a problem exists: using only a single elongated magnetic connector insert and assembly leads to unstable connections between the phone body and the magnetic battery. Utility Model Content

[0004] According to one aspect of the present invention, the present invention provides a battery to solve the problem of unstable connection between the mobile phone body and the magnetic battery in the related art.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A battery, including a battery casing for installation within a component to be installed, the battery casing being provided with a first magnetic element, and the component to be installed having a second magnetic element disposed inside;

[0007] Along the length or width direction of the battery, the battery casing has a first end and a second end. The first magnetic element includes a plurality of magnetic attracting parts, all of which are magnetically attracted to the second magnetic element. Some of the magnetic attracting parts are disposed at the first end, and some of the magnetic attracting parts are disposed at the second end.

[0008] As a preferred embodiment of the battery, the battery is a square battery, and the first magnetic element is square in shape and has four magnetic attraction parts connected end to end in sequence. The four magnetic attraction parts are arranged one-to-one on the four edges of the battery casing.

[0009] As a preferred embodiment of the battery, the battery casing has a main body and an extension extending relative to the main body, wherein the end of the main body away from the extension is a first end portion, and the end of the extension away from the main body is a second end portion.

[0010] As a preferred embodiment of the battery, the first end and the second end are respectively located at both ends of the battery casing along its length direction. Along the width direction of the battery casing, the width of the main body is greater than the width of the extension, and part of the magnetic attraction part is disposed at the end of the main body away from the first end.

[0011] As a preferred embodiment of the battery, the battery casing includes a wall and two cover plates respectively disposed at both ends of the wall. The inner wall of the wall has two stepped surfaces, and the two cover plates abut against the two stepped surfaces respectively.

[0012] As a preferred embodiment of the battery, the enclosure includes a enclosure body and connecting portions at both ends of the enclosure body, wherein the dimensions of both connecting portions are larger than the dimensions of the enclosure body to form the stepped surface.

[0013] As a preferred embodiment of the battery, it further includes a battery cell disposed within the battery casing, and a positive tab and a negative tab connected to the battery cell. The positive tab is connected to a terminal post, and the negative tab is connected to the battery casing. The terminal post is disposed within the battery casing, and the terminal post is separated from the battery casing by an insulating component.

[0014] As a preferred embodiment of the battery, the battery casing is provided with a pressure relief valve; and / or,

[0015] The battery casing has a pressure relief hole, which is covered with an explosion-proof sheet.

[0016] As a preferred embodiment of the battery, the battery casing has an injection hole, and an injection pin is provided in the injection hole to seal the injection hole.

[0017] According to another aspect of the present invention, a mobile device is provided, including a device body and the aforementioned battery, wherein the battery housing is used to be installed in the device body, and a second magnetic element is disposed inside the device body, wherein the magnetic attraction portion of the first magnetic element is magnetically attracted to the second magnetic element.

[0018] The beneficial effects of this utility model are:

[0019] This utility model provides a battery, including a battery casing for installation inside a component to be installed. The battery casing is provided with a first magnetic element, and the component to be installed has a second magnetic element inside. Along the length or width direction of the battery, the battery casing has a first end and a second end. The first magnetic element includes multiple magnetic attraction parts, all of which can be magnetically attracted to the second magnetic element. Some magnetic attraction parts are located at the first end, and some magnetic attraction parts are located at the second end, so that at least some magnetic attraction parts are distributed on both ends of the battery casing along the length or width direction of the battery, increasing the force points between the battery casing and the component to be installed, thereby making the connection between the battery casing and the component to be installed more stable.

[0020] This invention also provides a mobile device, including a device body and the aforementioned battery. The battery casing is used to install within the device body. A second magnetic element is disposed inside the device body, and the magnetic attraction portion of the first magnetic element can be magnetically attracted to the second magnetic element. In this battery, a portion of the magnetic attraction portion is disposed at the first end and a portion at the second end, thereby distributing at least a portion of the magnetic attraction portion at both ends of the battery casing along the length or width direction of the battery. This increases the number of force-bearing points between the battery casing and the device body, thus making the connection between the battery casing and the device body more stable. Attached Figure Description

[0021] Figure 1 This is a first exploded view of the battery in Embodiment 1 of this utility model;

[0022] Figure 2 yes Figure 1 Enlarged view of point A in the middle;

[0023] Figure 3 This is a second exploded view of the battery in Embodiment 1 of this utility model;

[0024] Figure 4 yes Figure 3 Enlarged view of point B in the middle;

[0025] Figure 5 This is a third exploded view of the battery in Embodiment 1 of this utility model;

[0026] Figure 6 This is a schematic diagram of the cover plate in Embodiment 1 of this utility model;

[0027] Figure 7 This is a schematic diagram of the cover plate in Embodiment 2 of this utility model.

[0028] In the picture:

[0029] 100. Battery casing; 101. First end; 102. Second end; 103. Main body; 104. Extension;

[0030] 200. First magnetic element; 201. Magnetic attraction part;

[0031] 1. Enclosure; 11. Step surface; 12. Enclosure body; 13. Connecting part;

[0032] 2. Cover plate;

[0033] 3. Battery cells;

[0034] 4. Positive electrode tab; 41. Terminal post; 42. Insulating component;

[0035] 5. Negative electrode ear;

[0036] 6. Pressure relief valve;

[0037] 7. Explosion-proof sheet;

[0038] 8. Injection nail. Detailed Implementation

[0039] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present invention and not intended to limit it. Furthermore, it should be noted that, for ease of description, the accompanying drawings show only the parts relevant to the present invention, not the entire structure.

[0040] In the description of this utility model, unless otherwise explicitly specified and limited, the terms "connected," "linked," and "fixed" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0041] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0042] In the description of this embodiment, the terms "upper," "lower," "left," and "right," etc., refer to the orientation or positional relationship shown in the accompanying drawings. They are used only for ease of description and simplification of operation, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first" and "second" are only used for distinction in description and have no special meaning.

[0043] To address the issue of non-removable or difficult-to-remove internal batteries in unibody phones, a magnetically removable battery phone has been developed. This phone includes a main body and a magnetic battery. The main body has a magnetic connector insert, and the magnetic battery has a magnetic connector assembly. The magnetic attraction between the insert and assembly allows for battery removal and replacement. However, a drawback is that using only a single, elongated magnetic connector insert and assembly results in an unstable connection between the phone and the battery.

[0044] In response, this embodiment provides a battery to solve the problem of unstable connection between the mobile phone body and the magnetic battery in related technologies, and can be used in the field of mobile device technology.

[0045] Reference Figures 1-6 The battery includes a battery casing 100, which is used to install within a component to be installed. In this embodiment, the component to be installed is a mobile phone, while in other embodiments, it can be other mobile devices, such as a tablet computer. The battery casing 100 is provided with a first magnetic element 200, and the component to be installed has a second magnetic element inside. Along the length or width direction of the battery, the battery casing 100 has a first end 101 and a second end 102. The first magnetic element 200 includes multiple magnetic attraction portions 201, all of which can be magnetically attracted to the second magnetic element. Some magnetic attraction portions 201 are located at the first end 101, and some are located at the second end 102, so that at least some magnetic attraction portions 201 are distributed on both ends of the battery casing 100 along the length or width direction of the battery, increasing the force points between the battery casing 100 and the component to be installed, thereby making the connection between the battery casing 100 and the component to be installed more stable.

[0046] In this embodiment, the first end 101 and the second end 102 are respectively located at both ends of the battery casing 100 along the length of the battery, so that the magnetic attraction part 201 provided at the first end 101 and the magnetic attraction part 201 provided at the second end 102 are far apart, and the force points between the battery casing 100 and the component to be installed are distributed far apart, which can further reduce the torque on the battery casing 100 after the two are installed, and make the connection between the battery casing 100 and the component to be installed more stable.

[0047] Optionally, the thickness of the first magnetic element 200 is set between 0.05mm and 0.20mm, specifically 0.05mm, 0.06mm, 0.07mm, 0.08mm, 0.09mm, 0.10mm, 0.11mm, 0.12mm, 0.13mm, 0.14mm, 0.15mm, 0.16mm, 0.17mm, 0.18mm, 0.19mm, or 0.20mm, etc.

[0048] Continue to refer to Figures 1-6 In this embodiment, the battery is a square battery, and the first magnetic element 200 is square in shape and has four magnetic attraction parts 201 connected end to end in sequence. The four magnetic attraction parts 201 are arranged one-to-one on the four edges of the battery casing 100. Therefore, whether along the length or width of the battery, there are two magnetic attraction parts 201 at both ends of the battery casing 100, thereby further improving the stability of the installation between the battery casing 100 and the component to be installed.

[0049] Continue to refer to Figures 1-6 The battery casing 100 includes a wall 1 and two cover plates 2 respectively disposed at both ends of the wall 1. The first end 101 and the second end 102 are both located on the cover plates 2, and a first magnetic element 200 is disposed on the cover plates 2. Specifically, both cover plates 2 are square, and the wall 1 is rectangular. Optionally, the inner wall of the wall 1 has two stepped surfaces 11, and the two cover plates 2 abut against the two stepped surfaces 11 respectively. This allows the cover plates 2 to be positioned during installation. Furthermore, this arrangement ensures that the cover plates 2 are tightly fitted to the stepped surfaces 11, enabling the battery casing 100 to have good sealing properties.

[0050] Optionally, the battery casing 100 is preferably made of stainless steel. In addition, aluminum, copper, alloys, and other materials can also be used. The thickness of the material is between 0.04mm and 1.00mm, specifically 0.04mm, 0.08mm, 0.12mm, 0.16mm, 0.20mm, 0.24mm, 0.28mm, 0.32mm, 0.36mm, 0.40mm, 0.44mm, 0.48mm, 0.52mm, 0.56mm, 0.60mm, 0.64mm, 0.68mm, 0.72mm, 0.76mm, 0.80mm, 0.84mm, 0.88mm, 0.92mm, 0.96mm, or 1.00mm.

[0051] Continue to refer to Figures 1-6 The enclosure 1 includes an enclosure body 12 and connecting portions 13 at both ends of the enclosure body 12. The dimensions of both connecting portions 13 are larger than the dimensions of the enclosure body 12, forming a stepped surface 11. This creates a stepped or flared shape at the location of the connecting portions 13, increasing the overall structural strength of the enclosure 1. Furthermore, no additional reinforcing structures are needed, increasing the usable space inside the battery and improving energy density. The cover plate 2 is smaller than the dimensions of the connecting portions 13 but larger than the dimensions of the enclosure body 12, allowing the cover plate 2 to be placed inside the connecting portions 13 and abut against the end face of the enclosure body 12, i.e., against the stepped surface 11. Specifically, the enclosure body 12 and connecting portions 13 can be formed by stamping or laser cutting. Alternatively, the two structures can be processed separately and then joined together by laser welding.

[0052] Continue to refer to Figures 1-6 The battery also includes a battery cell 3 disposed within the battery casing 100, and a positive electrode tab 4 and a negative electrode tab 5 connected to the battery cell 3. The positive electrode tab 4 is connected to the terminal post 41, specifically by ultrasonic welding, resistance welding, laser welding, etc. The negative electrode tab 5 is connected to the battery casing 100, also by ultrasonic welding, resistance welding, laser welding, etc. The terminal post 41 is disposed within the battery casing 100, and the terminal post 41 is separated from the battery casing 100 by an insulating component 42. Optionally, a fusible protection structure is provided between the positive electrode tab 4 and the terminal post 41, and between the negative electrode tab 5 and the battery casing 100. The fusible protection structure is made of a material with a low melting point and good conductivity, preferably tin, and preferably tin foil. In addition, metallic tin, tin alloys, and other materials with low melting points and good conductivity can also be used.

[0053] Continue to refer to Figures 1-6The battery casing 100 is provided with a pressure relief valve 6; and / or, the battery casing 100 has a pressure relief hole covered with an explosion-proof sheet 7, which can relieve pressure and prevent explosion when the internal pressure of the battery casing 100 is too high. This embodiment exemplarily provides a scheme that simultaneously provides a pressure relief valve 6 and a pressure relief hole. One or more pressure relief valves 6 can be used according to actual needs, and the length, position, angle, and number of pressure relief valves 6 can be adjusted. The pressure relief hole is square, and the explosion-proof sheet is also square, and is made of materials with good ductility and certain strength such as aluminum, nickel, copper, and aluminum alloy. The hole wall of the pressure relief hole and the explosion-proof sheet 7 can be connected by ultrasonic welding, resistance welding, laser welding, etc., to ensure that the battery can withstand an internal pressure of 0.1 MPa to 10 MPa, so as to achieve the functions of pressure relief and explosion prevention.

[0054] Specifically, in this embodiment, the pressure relief valve 6 is installed on the cover plate 2, and the pressure relief hole is opened in the enclosure wall 1. Alternatively, the cover plate 2 can be installed on the enclosure wall 1, or the pressure relief hole can be opened in the cover plate 2.

[0055] Continue to refer to Figures 1-6 The battery casing 100 has an injection hole through which liquid can be injected into the inner cavity of the battery casing 100. An injection pin 8 is installed inside the injection hole to seal it and achieve a seal. The diameter of the injection hole is between 0.5mm and 2.0mm, specifically 0.5mm, 0.6mm, 0.7mm, 0.8mm, 0.9mm, 1.0mm, 1.1mm, 1.2mm, 1.3mm, 1.4mm, 1.5mm, 1.6mm, 1.7mm, 1.8mm, 1.9mm, or 2.0mm. Furthermore, the position of the injection hole can be adjusted according to different situations; in this embodiment, it is specifically located in the enclosure wall 1. The injection pin 8 is connected to the wall of the injection hole by laser welding to improve sealing and prevent moisture and air from entering the battery.

[0056] Example 2

[0057] This embodiment provides another type of battery, which differs from the battery in Embodiment 1 in that it has a different shape.

[0058] Reference Figure 7In this embodiment, the battery casing 100 has a main body 103 and an extension 104 extending relative to the main body 103. The battery is an irregularly shaped battery, and the shapes of the enclosure 1 and the cover plate 2 in the battery casing 100 are adapted to each other. In addition, the main body 103 and the extension 104 are both located on the cover plate 2. The end of the main body 103 away from the extension 104 is the first end 101, and the end of the extension 104 away from the main body 103 is the second end 102. Thus, a portion of the magnetic attraction part 201 is disposed at the end of the main body 103 away from the extension 104, and a portion of the magnetic attraction part 201 is disposed at the end of the extension 104 away from the main body 103. Therefore, when the battery casing 100 is installed, both the main body 103 and the extension 104 can be stably subjected to force.

[0059] Continue to refer to Figure 7 The first end 101 and the second end 102 are located at the two ends of the battery casing 100 along its length direction. Along the width direction of the battery casing 100, the width of the main body 103 is greater than the width of the extension 104. Some magnetic suction parts 201 are provided at the end of the main body 103 away from the first end 101, so that the wider main body 103 is provided with some additional magnetic suction parts 201 to increase the force points and further improve the stability of the connection between the battery casing 100 and the component to be installed.

[0060] Example 3

[0061] This embodiment provides a mobile device, which is a mobile phone in this embodiment. In other embodiments, the mobile device may also be a tablet computer or other devices.

[0062] The mobile device specifically includes a device body and the battery described in Embodiment 1 or Embodiment 2. A battery casing 100 is installed within the device body. A second magnetic element is disposed inside the device body, which can be attached to the device body via adhesion or laser welding. The magnetic attraction portion 201 of the first magnetic element 200 is magnetically attracted to the second magnetic element. In this battery, some magnetic attraction portions 201 are disposed at the first end 101 and some at the second end 102, thus distributing at least some magnetic attraction portions 201 at both ends of the battery casing 100 along the length or width direction of the battery. This increases the number of force points between the battery casing 100 and the device body, thereby making the connection between the battery casing 100 and the device body more stable.

[0063] Obviously, the above embodiments of this utility model are merely examples for clearly illustrating the present utility model, and are not intended to limit the implementation of the present utility model. Those skilled in the art can make various obvious changes, readjustments, and substitutions without departing from the protection scope of this utility model. It is neither necessary nor possible to exhaustively describe all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this utility model should be included within the protection scope of the claims of this utility model.

Claims

1. A battery, characterized in that, Includes a battery housing (100) for installation inside a component to be installed, the battery housing (100) being provided with a first magnetic element (200), and the component to be installed having a second magnetic element inside; Along the length or width direction of the battery, the battery casing (100) has a first end (101) and a second end (102). The first magnetic element (200) includes a plurality of magnetic attraction parts (201), all of which are magnetically attracted to the second magnetic element. Some of the magnetic attraction parts (201) are disposed at the first end (101), and some of the magnetic attraction parts (201) are disposed at the second end (102).

2. The battery according to claim 1, characterized in that, The battery is a square battery. The first magnetic element (200) is square in shape and has four magnetic attraction parts (201) connected end to end in sequence. The four magnetic attraction parts (201) are arranged one-to-one on the four edge parts of the battery casing (100).

3. The battery according to claim 1, characterized in that, The battery casing (100) has a main body (103) and an extension (104) extending relative to the main body (103). The end of the main body (103) away from the extension (104) is the first end (101), and the end of the extension (104) away from the main body (103) is the second end (102).

4. The battery according to claim 3, characterized in that, The first end (101) and the second end (102) are respectively located at both ends of the battery casing (100) along its length direction. Along the width direction of the battery casing (100), the width of the main body (103) is greater than the width of the extension (104), and part of the magnetic suction part (201) is disposed at the end of the main body (103) away from the first end (101).

5. The battery according to any one of claims 1-4, characterized in that, The battery casing (100) includes a wall (1) and two cover plates (2) respectively disposed at both ends of the wall (1). The inner wall of the wall (1) has two stepped surfaces (11), and the two cover plates (2) respectively abut against the two stepped surfaces (11).

6. The battery according to claim 5, characterized in that, The enclosure (1) includes an enclosure body (12) and connecting portions (13) connected to both ends of the enclosure body (12). The dimensions of the two connecting portions (13) are both larger than the dimensions of the enclosure body (12) to form the stepped surface (11).

7. The battery according to any one of claims 1-4, characterized in that, It also includes a battery cell (3) disposed inside the battery casing (100), and a positive electrode tab (4) and a negative electrode tab (5) connected to the battery cell (3). The positive electrode tab (4) is connected to a terminal (41), and the negative electrode tab (5) is connected to the battery casing (100). The terminal (41) is disposed in the battery casing (100), and the terminal (41) and the battery casing (100) are separated by an insulating member (42).

8. The battery according to any one of claims 1-4, characterized in that, The battery casing (100) is provided with a pressure relief valve (6); and / or, The battery casing (100) has a pressure relief hole, which is covered with an explosion-proof sheet (7).

9. The battery according to any one of claims 1-4, characterized in that, The battery casing (100) has an injection hole, and an injection pin (8) is provided in the injection hole to seal the injection hole.

10. A mobile device, characterized in that, The device includes a device body and a battery as described in any one of claims 1-9, wherein the battery casing (100) is used to be installed in the device body, and a second magnetic element is provided inside the device body, wherein the magnetic attraction part (201) of the first magnetic element (200) is magnetically attracted to the second magnetic element.

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