Battery shell, battery and terminal equipment
By setting grooves on the cover plate of the battery case to increase its surface area, the problem of poor deformation capability of steel shell batteries is solved, and the deformation capability and reliability of the battery case are improved.
Patent Information
- Application Number
- CN202420791048.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-16
- Publication Date
- 2025-04-29
- Estimated Expiration
- 2034-04-16
AI Technical Summary
The deformation ability of steel shell batteries is poor and they are prone to fluid leakage due to local stress.
A battery case is designed, including a housing main body and a cover plate, with grooves sinking into the receiving cavity, which increases the surface area of the battery case and improves its deformation ability.
By increasing the surface area of the battery case, its deformation ability is improved, local stress can be absorbed, and liquid leakage in the shell is reduced, which improves the reliability of the battery case.
Smart Images
Figure CN222813740U_ABST
Abstract
Description
Technical Field
[0001] The present disclosure relates to the field of batteries, and in particular to a battery housing, a battery, and a terminal device. Background Art
[0002] In the mobile internet era, smartphones and other terminal devices are becoming increasingly versatile and capable, and users are becoming increasingly reliant on and using these devices more frequently. Currently, terminal devices are experiencing increasing energy consumption and a growing demand for battery capacity. Against this backdrop, steel-cased batteries are gradually replacing soft-pack batteries, as they offer higher capacity gains within the same battery space. However, existing technologies have shown that steel-cased batteries have poor deformation resistance and are prone to leakage due to localized stress. Summary of the Invention
[0003] In order to overcome the problems existing in the related art, the embodiments of the present disclosure provide a battery housing, a battery and a terminal device to solve the defects in the related art.
[0004] According to a first aspect of an embodiment of the present disclosure, a battery housing is provided, comprising:
[0005] A housing body, wherein the housing body has a receiving cavity, and the receiving cavity has an opening;
[0006] A cover plate is connected to the shell body and closes the opening of the accommodating cavity. The cover plate has at least one groove sunk into the accommodating cavity.
[0007] In a possible embodiment of the present disclosure, the shell body has a first edge extending toward the outside of the opening; a portion of the cover plate outside the groove is connected to the first edge, so that the cover plate closes the opening of the accommodating cavity.
[0008] In a possible embodiment of the present disclosure, the shape of the groove matches the bent shape of the edge, so that a side of the groove facing the shell body fits in contact with the bent portion of the edge.
[0009] In a possible embodiment of the present disclosure, the cover plate is provided with a second edge bent toward the shell body, and the second edge is interference-fitted and connected to the shell.
[0010] In a possible embodiment of the present disclosure, the inner side of the second edge is interference-fitted and connected to the outer side of the shell body; or,
[0011] The outer side of the second edge is interference-fitted with and connected to the inner side of the shell body.
[0012] In a possible embodiment of the present disclosure, a stop is provided at the portion where the shell body and the second edge are interference-fitted.
[0013] In a possible embodiment of the present disclosure, the groove includes: an annular groove provided on the cover plate along the circumference of the opening.
[0014] In a possible embodiment of the present disclosure, the groove includes: a plurality of grooves uniformly arranged on the cover plate along the circumference of the opening.
[0015] In a possible embodiment of the present disclosure, the opening is rectangular, and the grooves are provided at corresponding positions at four corners of the cover plate and the opening.
[0016] According to a second aspect of the embodiments of the present disclosure, a battery is provided, comprising a battery housing as described in any of the above embodiments.
[0017] According to a third aspect of the embodiments of the present disclosure, a terminal device is provided, comprising the battery as described in any of the above embodiments.
[0018] The technical solutions provided by the embodiments of the present disclosure may have the following beneficial effects:
[0019] The battery case provided in the embodiment of the present disclosure can form a closed accommodating cavity through the case body and the cover plate, which is used to encapsulate internal components such as battery cells and electrolytes to form a complete battery; and the cover plate is provided with a groove that sinks into the accommodating cavity. The groove can increase the surface area of the battery case, thereby improving its deformation ability, absorbing local stress and reducing problems such as leakage of the case, thereby improving the reliability of the battery case. BRIEF DESCRIPTION OF THE DRAWINGS
[0020] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the invention and, together with the description, serve to explain the principles of the invention.
[0021] Figure 1 is a structural schematic diagram of a battery housing shown in an exemplary embodiment of the present disclosure;
[0022] Figure 2 is an exploded view of a battery housing according to an exemplary embodiment of the present disclosure;
[0023] Figure 3 is a partial diagram of a battery housing connection according to an exemplary embodiment of the present disclosure;
[0024] Figure 4 is a top view of a battery housing according to an exemplary embodiment of the present disclosure;
[0025] Figure 5is a partial diagram of a battery housing connection according to an exemplary embodiment of the present disclosure;
[0026] Figure 6 It is a structural block diagram of a terminal device shown in an exemplary embodiment of the present disclosure. DETAILED DESCRIPTION
[0027] Exemplary embodiments will be described in detail herein, with examples illustrated in the accompanying drawings. In the following description, when referring to the drawings, identical numerals in different figures represent identical or similar elements, unless otherwise indicated. The embodiments described in the following exemplary embodiments are not intended to represent all possible embodiments consistent with the present disclosure. Rather, they are merely examples of apparatus and methods consistent with certain aspects of the present disclosure, as detailed in the appended claims.
[0028] The terms used in this disclosure are for the purpose of describing specific embodiments only and are not intended to limit the disclosure. As used in this disclosure and the appended claims, the singular forms "a," "an," "the," and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It should also be understood that the term "and / or" as used herein refers to and encompasses any and all possible combinations of one or more of the associated listed items.
[0029] It should be understood that although the terms first, second, third, etc. may be used in this disclosure to describe various information, such information should not be limited to these terms. These terms are only used to distinguish information of the same type from each other. For example, without departing from the scope of this disclosure, first information may also be referred to as second information, and similarly, second information may also be referred to as first information. Depending on the context, the word "if" as used herein may be interpreted as "at the time of" or "when" or "in response to determining."
[0030] In the mobile internet era, smartphones and other terminal devices are becoming increasingly versatile and capable, and users are becoming increasingly reliant on and using these devices more frequently. Currently, terminal devices are experiencing increasing energy consumption and a growing demand for battery capacity. Against this backdrop, steel-cased batteries are gradually replacing soft-pack batteries, as they offer higher capacity gains within the same battery space. However, existing technologies have shown that steel-cased batteries have poor deformation resistance and are prone to leakage due to localized stress.
[0031] Based on this, in a first aspect, at least one embodiment of the present disclosure provides a battery housing, which is used to encapsulate battery cells, electrolytes and other components to form a complete battery for powering a load in a terminal device.
[0032] Please refer to the attached Figure 1 To the attached Figure 5, which exemplarily show various structural schematic diagrams of the battery shell. The structure of the battery shell will be described in detail below with reference to these drawings. It should be understood that these drawings do not limit the structure of the battery shell provided by the present disclosure.
[0033] The battery case includes: a case body 100, wherein the case body 100 has a receiving cavity 102, and the receiving cavity 102 has an opening 103; a cover plate 200, wherein the cover plate 200 is connected to the case body 100 and closes the opening 103 of the receiving cavity 102, and the cover plate 200 has at least one groove 201 sunken into the receiving cavity 102.
[0034] Illustratively, the housing body 100 may include a bottom wall and side walls, which surround a receiving cavity 102, and an end of the side wall away from the bottom wall forms an opening 103 of the receiving cavity 102. The cover plate 200 and the housing body 100 may be connected by welding or other means to seal the receiving cavity 102. The sealed receiving cavity 102 can accommodate components such as battery cells and electrolyte.
[0035] The groove 201 on the cover plate 200 can increase the surface area of the battery shell, thereby improving its deformation ability, absorbing local stress and reducing problems such as leakage of the shell. Figure 1 The groove 201 may include: the cover plate 200 may be provided with an annular groove 201 along the circumference of the opening 103, and the annular groove 201 may provide deformation ability and stress absorption ability from all directions. Alternatively, the groove 201 may include: the cover plate 200 may be provided with multiple grooves 201 evenly along the circumference of the opening 103, for example, please refer to the attached Figure 4 The opening 103 is rectangular (the four corners of the rectangle can be chamfered), and the grooves 201 are arranged at corresponding positions of the cover plate 200 and the four corners of the opening 103, so as to provide deformation ability and stress absorption ability from multiple directions and avoid excessive waste of material.
[0036] The present disclosure does not limit the specific structural coordination between the housing body 100 and the cover plate 200, as long as they can be connected to each other and complete the sealing of the accommodating cavity 102. The following two optional examples are used as examples to exemplify the specific structural coordination between the housing body 100 and the cover plate 200.
[0037] Optional Example 1
[0038] Please refer to the attached Figure 1 To the attached Figure 2The housing body 100 has a first edge 101 extending outward from the opening 103. For example, the sidewall of the housing has a first edge 101 that bends and extends outward from the opening 103. The first edge 101 is used to fit and connect with the cover plate 200. The outer side (wherein, the outer side refers to the radially outward direction of the opening 103, and the inner side refers to the radially inward direction of the opening 103) of the groove 201 of the cover plate 200 is connected to the first edge 101, so that the cover plate 200 closes the opening 103 of the accommodating cavity 102. That is, the groove 201 is provided on the inner side of the first edge 101, adjacent to the connection between the first edge 101 and the cover plate 200. It should be understood that when the connection part between the first edge 101 and the cover plate 200 is connected in a form such as welding, the area of the cover plate 200 adjacent to the connection part will become a heat-affected zone. The material strength of the heat-affected zone will decrease, and it is easy to cause damage and leakage due to deformation or stress concentration. However, providing a groove 201 in this area can specifically solve the problems of poor deformation ability and poor stress absorption ability, thereby avoiding problems such as damage and leakage.
[0039] Optional, please refer to the attached Figure 3 The cross-section of the groove 201 on the cover plate 200 can be trapezoidal, rectangular, semicircular, or other shapes; and the shape of the groove 201 matches the bend of the edge, so that the side of the groove 201 facing the housing body 100 is aligned with the bend 104 of the edge. In other words, the back surface of the groove 201 matches the angle formed between the sidewall of the housing body 100 and the first edge 101, allowing for a tight fit. This improves the positioning accuracy of the cover plate 200 and the housing body 100, reduces the difficulty of positioning the two, and allows the cover plate 200 and the first edge 101 to be more tightly aligned, thereby improving the sealing performance of the connection between the two, such as welding sealing.
[0040] Optional Example 2
[0041] Please refer to the attached Figure 5 The cover plate 200 has a second edge 202 bent toward the housing body 100. The second edge 202 is connected to the housing body by an interference fit. The interference fit between the second edge 202 and the housing improves the tightness of the connection between the two, thereby improving the sealing performance after the two are connected, such as welding sealing.
[0042] Exemplarily, the inner side of the second edge 202 is interference-fitted with and connected to the outer side of the shell body 100 ; or, the outer side of the second edge 202 is interference-fitted with and connected to the inner side of the shell body 100 .
[0043] As another example, a stopper is provided at the portion where the housing body 100 and the second edge 202 are interference-fitted. The provision of the stopper can make the two fit more tightly, and the surface is smoother, thereby improving the sealing performance.
[0044] The battery case provided in the embodiment of the present disclosure can form a closed accommodating cavity 102 through the case body 100 and the cover plate 200, which is used to encapsulate internal components such as battery cells and electrolyte to form a complete battery; and the cover plate 200 is provided with a groove 201 that sinks into the accommodating cavity 102. The groove 201 can increase the surface area of the battery case, thereby improving its deformation ability, absorbing local stress and reducing problems such as leakage of the case, thereby improving the reliability of the battery case.
[0045] According to a second aspect of the embodiments of the present disclosure, a battery is provided, comprising a battery housing as described in any of the above embodiments.
[0046] According to a second aspect of an embodiment of the present disclosure, a terminal device is provided, comprising a battery as described in any of the above embodiments.
[0047] Please refer to the attached Figure 6 , which exemplarily shows a block diagram of the terminal device. For example, the device 600 may be a mobile phone, a computer, a digital broadcast terminal, a messaging device, a game console, a tablet device, a medical device, a fitness device, a personal digital assistant, etc.
[0048] Reference Figure 6 , device 600 may include one or more of the following components: a processing component 602 , a memory 604 , a power component 606 , a multimedia component 608 , an audio component 610 , an input / output (I / O) interface 612 , a sensor component 614 , and a communication component 616 .
[0049] The processing component 602 generally controls the overall operation of the device 600, such as operations associated with display, phone calls, data communications, camera operation, and recording operations. The processing component 602 may include one or more processors 620 to execute instructions to perform all or part of the steps of the above-described method. In addition, the processing component 602 may include one or more modules to facilitate interaction between the processing component 602 and other components. For example, the processing component 602 may include a multimedia module to facilitate interaction between the multimedia component 608 and the processing component 602.
[0050] The memory 604 is configured to store various types of data to support operations on the device 600. Examples of such data include instructions for any application or method operating on the device 600, contact data, phone book data, messages, pictures, videos, etc. The memory 604 can be implemented by any type of volatile or non-volatile storage device, or a combination thereof, such as static random access memory (SRAM), electrically erasable programmable read-only memory (EEPROM), erasable programmable read-only memory (EPROM), programmable read-only memory (PROM), read-only memory (ROM), magnetic memory, flash memory, magnetic disk, or optical disk.
[0051] The power component 606 provides power to the various components of the device 600. The power component 606 may include a power management system, one or more power supplies, and other components associated with generating, managing, and distributing power to the device 600.
[0052] The multimedia component 608 includes a screen that provides an output interface between the device 600 and the user. In some embodiments, the screen may include a liquid crystal display (LCD) and a touch panel (TP). If the screen includes a touch panel, the screen can be implemented as a touch screen to receive input signals from the user. The touch panel includes one or more touch sensors to sense touch, slide, and gestures on the touch panel. The touch sensor can not only sense the boundaries of the touch or slide action, but also detect the duration and pressure associated with the touch or slide operation. In some embodiments, the multimedia component 608 includes a front camera and / or a rear camera. When the device 600 is in an operating mode, such as a shooting mode or a video mode, the front camera and / or the rear camera can receive external multimedia data. Each front camera and rear camera can be a fixed optical lens system or have a focal length and optical zoom capability.
[0053] The audio component 610 is configured to output and / or input audio signals. For example, the audio component 410 includes a microphone (MIC), which is configured to receive external audio signals when the device 600 is in an operating mode, such as a call mode, a recording mode, and a voice recognition mode. The received audio signal can be further stored in the memory 604 or transmitted via the communication component 616. In some embodiments, the audio component 610 also includes a speaker for outputting audio signals.
[0054] I / O interface 612 provides an interface between processing component 602 and peripheral interface modules, such as a keyboard, click wheel, buttons, etc. These buttons may include but are not limited to: a home button, volume buttons, a start button, and a lock button.
[0055] The sensor assembly 614 includes one or more sensors for providing various aspects of status assessment for the device 600. For example, the sensor assembly 614 can detect the open / closed state of the device 600, the relative positioning of components, such as the display and keypad of the device 600. The sensor assembly 614 can also image the position change of the device 600 or a component of the device 600, the presence or absence of user contact with the device 600, the orientation or acceleration / deceleration of the device 600, and the temperature change of the device 600. The sensor assembly 614 can also include a proximity sensor configured to detect the presence of nearby objects without any physical contact. The sensor assembly 614 can also include a light sensor, such as a CMOS or CCD image sensor, for use in imaging applications. In some embodiments, the sensor assembly 614 can also include an accelerometer, a gyroscope sensor, a magnetic sensor, a pressure sensor, or a temperature sensor.
[0056] The communication component 616 is configured to facilitate wired or wireless communication between the device 600 and other devices. The device 600 can access a wireless network based on a communication standard, such as WiFi, 2G or 3G, 4G or 5G or a combination thereof. In an exemplary embodiment, the communication component 616 receives a broadcast signal or broadcast-related information from an external broadcast management system via a broadcast channel. In an exemplary embodiment, the communication component 616 also includes a near field communication (NFC) module to facilitate short-range communication. For example, the NFC module can be implemented based on radio frequency identification (RFID) technology, infrared data association (IrDA) technology, ultra-wideband (UWB) technology, Bluetooth (BT) technology and other technologies.
[0057] In an exemplary embodiment, device 600 may be implemented by one or more application specific integrated circuits (ASICs), digital signal processors (DSPs), digital signal processing devices (DSPDs), programmable logic devices (PLDs), field programmable gate arrays (FPGAs), controllers, microcontrollers, microprocessors, or other electronic components.
[0058] Other embodiments of the present disclosure will readily occur to those skilled in the art after considering the specification and practicing the disclosure herein. This application is intended to cover any variations, uses, or adaptations of the present disclosure that follow the general principles of the present disclosure and include common knowledge or customary techniques in the art not disclosed herein. The description and examples are to be considered as exemplary only, with the true scope and spirit of the present disclosure being indicated by the following claims.
[0059] It should be understood that the present disclosure is not limited to the exact structures that have been described above and shown in the drawings, and that various modifications and changes can be made without departing from the scope thereof. The scope of the present disclosure is limited only by the appended claims.
Claims
1. A battery housing, characterized in that: The battery housing comprises: A shell body, wherein the shell body has a receiving cavity, and the receiving cavity has an opening; A cover plate, the cover plate is connected to the shell body and closes the opening of the accommodating cavity, and the cover plate has at least one groove sunk into the accommodating cavity; The shell body has a first edge extending toward the outside of the opening; a portion of the cover plate outside the groove is connected to the first edge, so that the cover plate closes the opening of the accommodating cavity.
2. The battery housing according to claim 1, characterized in that: The shape of the groove matches the bent shape of the first edge, so that a side of the groove facing the shell body fits with the bent portion of the first edge.
3. The battery housing according to claim 1, characterized in that: The cover plate is provided with a second edge bent toward the shell body, and the second edge is interference-fitted and connected to the shell.
4. The battery case according to claim 3, characterized in that: The inner side of the second edge is interference-fitted and connected with the outer side of the shell body; or, The outer side of the second edge is interference-fitted and connected to the inner side of the shell body.
5. The battery housing according to claim 3, characterized in that: A stop is provided at the portion where the shell body and the second edge are interference-fitted.
6. The battery case according to claim 1, characterized in that: The groove comprises: an annular groove arranged on the cover plate along the circumference of the opening.
7. The battery housing according to claim 1, characterized in that: The grooves include: a plurality of grooves uniformly arranged on the cover plate along the circumference of the opening.
8. The battery casing according to claim 7, characterized in that: The opening is rectangular, and the grooves are arranged at corresponding positions of the cover plate and four corners of the opening.
9. A battery, characterized in that: The invention comprises a battery casing according to any one of claims 1 to 8.
10. A terminal device, characterized in that: Comprising the battery as claimed in claim 9.