Battery cell assembly and electronic equipment

Abstract

The utility model relates to a battery cell assembly and electronic equipment, the battery cell assembly comprises a battery cell shell, a battery cell and an early warning circuit, the early warning circuit is located in the battery cell shell, the battery cell shell is further provided with a battery cell accommodating cavity, the battery cell accommodating cavity is used for placing the battery cell, and the early warning circuit is used for being connected with the placed battery cell. The first connector is selectively in a first connection state or a second connection state; when the battery cell is placed in the battery cell containing cavity in the first direction, the battery cell is connected to the early warning circuit, the early warning circuit is in a first connection state, and an early warning prompt is given out. And when the battery cell is placed in the battery cell accommodating cavity along a second direction, the early warning circuit is in a second connection state and does not give out an early warning prompt, and the first direction is opposite to the second direction. According to the invention, automatic detection and alarm functions can be realized when the battery cell is reversely inserted, so that the safety and accuracy of battery cell installation are improved, the situation that normal operation of the electronic equipment is influenced or even the electronic equipment is damaged due to wrong installation of the battery cell can be effectively prevented, and meanwhile, the use safety of the electronic equipment can be improved.

Description

Technical Field

[0001] This application relates to the field of battery technology, and in particular to a battery cell assembly and electronic device. Background Technology

[0002] In portable consumer electronics, due to size and space constraints and cost control requirements, battery systems are typically designed as two separate components: a protection board and the battery cells. This design allows users or maintenance personnel to easily replace a battery cell when it malfunctions or when a new cell of the same specifications becomes available on the market, without having to replace the entire battery assembly.

[0003] To facilitate battery cell replacement, electronic devices will have a dedicated interface for connecting the positive and negative terminals of the battery cell.

[0004] However, when the positive and negative terminals of the battery cell are designed with smooth flat surfaces, users may easily insert the battery cell in the wrong direction during the insertion process, causing a short circuit between the positive and negative terminals. This may damage the battery itself, and may also cause serious damage to the protection board and back-end circuits fixed at the device end, or even cause a safety accident. Utility Model Content

[0005] This application provides a battery cell assembly and electronic device to solve the technical problem that the prior art cannot distinguish the positive and negative terminals of the battery cell, which makes it easy to install the battery cell in reverse, thereby potentially damaging the battery cell itself, and may also cause serious damage to the protection board and back-end circuits fixed at the device end, or even cause safety accidents.

[0006] In a first aspect, this application provides a battery cell assembly for installation on an electronic device. The battery cell assembly includes a battery cell housing, a battery cell, and a warning circuit. The warning circuit is located inside the battery cell housing. The battery cell housing also has a battery cell receiving cavity for inserting the battery cell. The warning circuit is used to connect with the inserted battery cell and can be selectively in a first connection state or a second connection state.

[0007] When the battery cell is placed into the battery cell receiving cavity along the first direction, the battery cell is connected to the warning circuit, and the warning circuit is in the first connection state, issuing a warning prompt.

[0008] When the battery cell is placed into the battery cell receiving cavity along the second direction, the warning circuit is in the second connection state and does not issue a warning. The first direction is opposite to the second direction.

[0009] In some possible implementations, the warning circuit includes a positive terminal of the battery cell, a negative terminal of the battery cell, a positive terminal of the battery, a negative terminal of the battery, and a buzzer, wherein the buzzer has a positive pin and a negative pin;

[0010] When the warning circuit is in the first connection state, the positive terminal of the battery cell is connected to the positive terminal of the battery through the positive terminal of the battery cell connection, the negative terminal of the battery cell is connected to the negative terminal of the battery through the negative terminal of the battery cell connection, the positive terminal of the battery is connected to the positive pin of the buzzer, and the negative terminal of the battery is connected to the negative pin of the buzzer.

[0011] When the warning circuit is in the second connection state, the negative terminal of the battery cell is connected to the positive terminal of the battery through the positive terminal of the battery cell, the positive terminal of the battery cell is connected to the negative terminal of the battery through the negative terminal of the battery cell, the positive terminal of the battery is connected to the negative pin of the buzzer, and the negative terminal of the battery is connected to the positive pin of the buzzer.

[0012] In some possible implementations, the warning circuit further includes a first current-limiting resistor and a second current-limiting resistor, wherein the first current-limiting resistor is connected to the negative terminal of the battery and the second current-limiting resistor is connected to the positive terminal of the battery.

[0013] In some possible implementations, the warning circuit further includes a first bidirectional Zener diode and a second bidirectional Zener diode, wherein the anode of the first bidirectional Zener diode is connected to the second current-limiting resistor and the cathode of the first bidirectional Zener diode is grounded; the anode of the second bidirectional Zener diode is connected to the first current-limiting resistor and the cathode of the second bidirectional Zener diode is grounded.

[0014] In some possible implementations, one end of the cell receiving cavity is provided with a first groove and the other end is provided with a first protrusion, the first groove and the first protrusion being used to engage with corresponding positions of the cell.

[0015] In some possible implementations, one of the positive and negative electrodes of the battery cell is provided with a second groove, and the other is provided with a second protrusion.

[0016] In some possible implementations, the cell assembly further includes a cell protection board, and the cell protection board is electrically connected to the cell.

[0017] In some possible implementations, the cell protection board is located inside the cell housing.

[0018] Secondly, this application provides an electronic device, the electronic device including a battery cell assembly as described in any of the above claims, the electronic device having a mounting cavity for inserting the battery cell assembly, the electronic device having a charging and discharging circuit for being electrically connected to the battery cell protection board.

[0019] In some possible implementations, the battery cell protection board is located inside the electronic device.

[0020] The technical solutions provided in this application have the following advantages compared with the prior art:

[0021] The battery cell assembly provided in this application embodiment realizes the automatic detection and alarm function when the battery cell is inserted in reverse through the integrated early warning circuit, thereby improving the safety and accuracy of battery cell installation. Furthermore, the battery cell assembly can only be installed into the electronic device when the battery cell is installed correctly. In this way, it can effectively prevent the normal operation of the electronic device from being affected or even damaged due to incorrect battery cell installation, and at the same time improve the safety of using the electronic device. Attached Figure Description

[0022] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments consistent with this application and, together with the description, serve to explain the principles of this application.

[0023] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, for those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0024] One or more embodiments are illustrated by way of example with reference numerals in the accompanying drawings. These illustrations do not constitute a limitation on the embodiments. Elements with the same reference numerals in the drawings are denoted as similar elements. Unless otherwise stated, the figures in the drawings are not to be limited by scale.

[0025] Figure 1 A schematic diagram of the battery cell assembly structure under the condition that the positive and negative electrodes of the battery cell are extremely smooth, as provided in the embodiments of this application;

[0026] Figure 2 A schematic diagram of a battery cell assembly structure provided in an embodiment of this application, showing the presence of bumps and depressions on the positive and negative electrodes of the battery cell.

[0027] Figure 3 A schematic diagram of the battery cell structure under the condition that the positive and negative electrodes of the battery cell are extremely smooth, as provided in the embodiments of this application;

[0028] Figure 4 A schematic diagram of the battery cell structure provided in the embodiments of this application, showing the battery cell structure with bumps and depressions on the positive and negative electrodes.

[0029] Figure 5 A circuit diagram showing the early warning circuit in the first connection state according to an embodiment of this application;

[0030] Figure 6A circuit diagram showing the early warning circuit in the second connection state provided in the embodiments of this application;

[0031] Figure 7 A connection diagram of the battery cell protection board provided in the embodiments of this application when it is disposed in the battery cell housing;

[0032] Figure 8 This is a circuit connection diagram of a battery cell protection board provided in an embodiment of this application when it is installed in an electronic device.

[0033] Explanation of reference numerals in the attached figures:

[0034] Electronic device 10, charging and discharging circuit 12, battery cell assembly 100, battery cell housing 110, battery cell 120, early warning circuit 130, buzzer 131, battery cell positive terminal connection 132, battery cell negative terminal connection 133, battery positive terminal connection 134, battery negative terminal connection 135, first current limiting resistor R1, second current limiting resistor R2, first bidirectional Zener diode T1, second bidirectional Zener diode T2, battery cell protection board 200, first groove 201, second groove 202, first protrusion 203, second protrusion 204. Detailed Implementation

[0035] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0036] The following disclosure provides numerous different embodiments or examples for implementing various structures of this application. To simplify the disclosure, specific examples of components and arrangements are described below. These are merely examples and are not intended to limit the scope of this application. Furthermore, reference numerals and / or letters may be repeated in different examples. Such repetition is for simplification and clarity and does not in itself indicate a relationship between the various embodiments and / or arrangements discussed.

[0037] For ease of description, spatial relative terms may be used in the text to describe the relative position or movement of one element or feature relative to another element or feature, as shown in the figure. These relative terms include, for example, "inside," "outside," "middle," "outer," "below," "below," "above," "front," "back," etc. Such spatial relative terms are intended to include different orientations of the device in use or operation, other than those depicted in the figure. For example, if the device in the figure undergoes a positional flip, orientation change, or change of motion, these directional indications will change accordingly. For instance, an element described as "below other elements or features" or "below other elements or features" will subsequently be oriented "above other elements or features" or "above other elements or features." Therefore, the example term "below" can include both upper and lower orientations. The device may be otherwise oriented (rotated 90 degrees or in other directions), and the spatial relative descriptors used in the text will be interpreted accordingly.

[0038] In portable consumer electronics, due to size and space constraints and cost control requirements, battery systems are typically designed as two separate components: a protection board and the battery cells. This design allows users or maintenance personnel to easily replace a battery cell when it malfunctions or when a new cell of the same specifications becomes available on the market, without having to replace the entire battery assembly.

[0039] To facilitate battery cell replacement, electronic devices will have a dedicated interface for connecting the positive and negative terminals of the battery cell.

[0040] However, when the positive and negative terminals of the battery cell are designed with smooth flat surfaces, users may easily insert the battery cell in the wrong direction during the insertion process, causing a short circuit between the positive and negative terminals. This may damage the battery itself, and may also cause serious damage to the protection board and back-end circuits fixed at the device end, or even cause a safety accident.

[0041] To address the technical problem that existing technologies cannot distinguish the positive and negative terminals of battery cells, leading to the easy reversal of cell installation, which may damage the battery cell itself, cause serious damage to the protection board and back-end circuitry fixed to the device, or even cause safety accidents, this application provides a battery cell assembly and electronic device with an automatic detection and alarm function when the battery cell is inserted in reverse. This improves the safety and accuracy of battery cell installation and effectively prevents the normal operation of electronic devices from being affected or even damaged due to incorrect battery cell installation, while also improving the safety of electronic devices in use.

[0042] See Figures 1-4The battery cell assembly 100 provided in this application includes a battery cell housing 110, a battery cell 120, and a warning circuit 130. The warning circuit 130 is located inside the battery cell housing 110. The battery cell housing 110 is also provided with a battery cell 120 receiving cavity for inserting the battery cell 120. The warning circuit 130 is used to connect with the inserted battery cell 120 and can be selectively in a first connection state or a second connection state.

[0043] When the battery cell 120 is placed into the battery cell 120 receiving cavity along the first direction, the battery cell 120 is connected to the warning circuit 130, and the warning circuit 130 is in the first connection state, issuing a warning prompt;

[0044] When the battery cell 120 is placed into the battery cell 120 receiving cavity along the second direction, the warning circuit 130 is in the second connection state and does not issue a warning, wherein the first direction is opposite to the second direction.

[0045] The first direction is reverse and the second direction is forward. That is, when the battery cell 120 is placed into the battery cell 120 receiving cavity in reverse, the warning circuit 130 is in the first connection state and issues a warning prompt; when the battery cell 120 is placed into the battery cell 120 receiving cavity in forward, the warning circuit 130 is in the second connection state and does not issue a warning prompt.

[0046] The battery cell assembly 100 provided in this embodiment realizes the automatic detection and alarm function when the battery cell 120 is inserted in reverse through the integrated early warning circuit 130, thereby improving the safety and accuracy of the battery cell 120 installation. Moreover, the battery cell assembly 100 can only be installed into the electronic device 10 when the battery cell 120 is installed correctly. In this way, it can effectively prevent the normal operation of the electronic device 10 from being affected or even damaged by the incorrect installation of the battery cell 120, and at the same time improve the safety of the use of the electronic device 10.

[0047] like Figure 2 and Figure 4 As shown, in some possible embodiments, one end of the cavity of the battery cell 120 is provided with a first groove 201 and the other end is provided with a first protrusion 203. The first groove 201 and the first protrusion 203 are respectively used to cooperate and connect with the corresponding positions of the battery cell 120.

[0048] In some possible implementations, one of the positive and negative electrodes of the battery cell 120 is provided with a second groove 202, and the other is provided with a second protrusion 204.

[0049] See Figure 5 and Figure 6In some possible implementations, the warning circuit 130 includes a cell positive terminal connection 132, a cell negative terminal connection 133, a battery positive terminal connection 134, a battery negative terminal connection 135, and a buzzer 131, wherein the buzzer 131 is provided with a positive terminal pin and a negative terminal pin.

[0050] like Figure 5 As shown, when the warning circuit 130 is in the first connection state, the positive terminal of the battery cell 120 is connected to the positive terminal of the battery 134 through the positive terminal 132 of the battery cell, the negative terminal of the battery cell 120 is connected to the negative terminal of the battery 135 through the negative terminal 133 of the battery cell, the positive terminal of the battery 134 is connected to the positive pin of the buzzer 131, and the negative terminal of the battery 135 is connected to the negative pin of the buzzer 131.

[0051] like Figure 6 As shown, when the warning circuit 130 is in the second connection state, the negative terminal of the battery cell 120 is connected to the positive terminal of the battery 134 through the positive terminal of the battery cell 132, the positive terminal of the battery cell 120 is connected to the negative terminal of the battery 135 through the negative terminal of the battery cell 133, the positive terminal of the battery 134 is connected to the negative pin of the buzzer 131, and the negative terminal of the battery 135 is connected to the positive pin of the buzzer 131.

[0052] In other words, when the positive terminal of the battery cell 120 is connected to the positive terminal of the battery 134 through the positive terminal 132 of the battery cell (i.e., the battery cell 120 is connected in reverse), the positive terminal of the battery 134 is connected to the positive pin of the buzzer 131, which will provide normal power to the buzzer 131, so that the buzzer 131 can make a sound normally.

[0053] When the battery cell 120 is correctly installed, the negative terminal of the battery cell 120 is connected to the positive terminal of the battery 134 through the positive terminal of the battery cell 132. The positive terminal of the battery 134 is connected to the negative pin of the buzzer 131. At this time, the buzzer 131 will not make a sound.

[0054] See Figure 5 and Figure 6 In some possible implementations, the warning circuit 130 further includes a first current-limiting resistor R1 and a second current-limiting resistor R2, wherein the first current-limiting resistor R1 is connected to the negative terminal 135 of the battery and the second current-limiting resistor R2 is connected to the positive terminal 134 of the battery.

[0055] See Figure 5 and Figure 6In some possible implementations, the warning circuit 130 further includes a first bidirectional Zener diode T1 and a second bidirectional Zener diode T2. The anode of the first bidirectional Zener diode T1 is connected to the second current-limiting resistor R2, and the cathode of the first bidirectional Zener diode T1 is grounded. The anode of the second bidirectional Zener diode T2 is connected to the first current-limiting resistor R1, and the cathode of the second bidirectional Zener diode T2 is grounded.

[0056] Among them, the first bidirectional Zener diode T1 and the second bidirectional Zener diode T2 will not conduct under negative voltage, and will only conduct to release static electricity when the positive voltage exceeds a certain value (such as 5V).

[0057] In some possible implementations, the cell assembly 100 further includes a cell protection board 200, which is electrically connected to the cell 120.

[0058] like Figure 7 As shown, in some possible embodiments, the cell protection board 200 is located inside the cell housing 110.

[0059] Based on the battery cell assembly 100 in the above embodiments, this application also provides an electronic device 10, which has a mounting cavity for inserting the battery cell assembly 100, and a charging and discharging circuit 12 for electrically connecting to the battery cell protection board 200.

[0060] In some possible implementations, the electronic device 10 may have a recess, and the battery cell housing 110 may have a snap-fit ​​or a protrusion. The battery cell assembly 100 can only be properly placed into the electronic device 10 when its snap-fit ​​or protrusion is correctly aligned with the recess. Only then can the positive and negative terminals of the battery cell assembly 100 be correctly connected to the electronic device 10; otherwise, it cannot be correctly assembled. When the battery cell 120 is placed alone into the mounting cavity of the electronic device 10, because the structural dimensions of the battery cell 120 are inconsistent with the mounting cavity, a single battery cell 120 cannot be correctly installed into the electronic device 10.

[0061] like Figure 8 As shown, in some possible embodiments, the battery cell protection board 200 is disposed within the electronic device 10.

[0062] In the above embodiments, the descriptions of each embodiment have different focuses. For parts that are not described in detail in a certain embodiment, please refer to the relevant descriptions in other embodiments.

[0063] In the description of this application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this application and simplifying the description, 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 application.

[0064] 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 technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, "multiple" means two or more, unless otherwise explicitly specified.

[0065] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a 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 application according to the specific circumstances.

[0066] In this application, unless otherwise expressly 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 being 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 being 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.

[0067] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of this application. The illustrative expressions of the above terms in this specification should not be construed as necessarily referring to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. In addition, those skilled in the art can combine and integrate the different embodiments or examples described in this specification.

[0068] Obviously, those skilled in the art can make various modifications and variations to this application without departing from the spirit and scope of this application. Since these modifications and variations fall within the scope of the claims and their equivalents, this application also intends to include these modifications and variations.

[0069] The above description describes specific embodiments of this application, but the scope of protection of this application 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 this application, and these modifications or substitutions should all be covered within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

Claims

1. A battery cell assembly, characterized in that, For installation on electronic devices, the battery cell assembly includes a battery cell housing, a battery cell, and a warning circuit. The warning circuit is located inside the battery cell housing. The battery cell housing also has a battery cell receiving cavity for inserting the battery cell. The warning circuit is used to connect with the inserted battery cell and can be selectively in a first connection state or a second connection state. When the battery cell is placed into the battery cell receiving cavity along the first direction, the battery cell is connected to the warning circuit, and the warning circuit is in the first connection state, issuing a warning prompt. When the battery cell is placed into the battery cell receiving cavity along the second direction, the warning circuit is in the second connection state and does not issue a warning prompt, wherein the first direction is opposite to the second direction; The warning circuit includes a positive terminal connection of the battery cell, a negative terminal connection of the battery cell, a positive terminal connection of the battery, a negative terminal connection of the battery, and a buzzer. The buzzer has a positive terminal pin and a negative terminal pin. The warning circuit further includes a first current-limiting resistor and a second current-limiting resistor, wherein the first current-limiting resistor is connected to the negative terminal of the battery and the second current-limiting resistor is connected to the positive terminal of the battery. The early warning circuit further includes a first bidirectional Zener diode and a second bidirectional Zener diode. The anode of the first bidirectional Zener diode is connected to the second current-limiting resistor, and the cathode of the first bidirectional Zener diode is grounded. The anode of the second bidirectional Zener diode is connected to the first current-limiting resistor, and the cathode of the second bidirectional Zener diode is grounded. When the warning circuit is in the first connection state, the positive terminal of the battery cell is connected to the positive terminal of the battery through the positive terminal of the battery cell connection, the negative terminal of the battery cell is connected to the negative terminal of the battery through the negative terminal of the battery cell connection, the positive terminal of the battery is connected to the positive pin of the buzzer, and the negative terminal of the battery is connected to the negative pin of the buzzer. When the warning circuit is in the second connection state, the negative terminal of the battery cell is connected to the positive terminal of the battery through the positive terminal of the battery cell, the positive terminal of the battery cell is connected to the negative terminal of the battery through the negative terminal of the battery cell, the positive terminal of the battery is connected to the negative pin of the buzzer, and the negative terminal of the battery is connected to the positive pin of the buzzer. The battery cell assembly also includes a battery cell protection board, and the battery cell protection board is electrically connected to the battery cell.

2. The battery cell assembly according to claim 1, characterized in that, One end of the cell receiving cavity is provided with a first groove, and the other end is provided with a first protrusion. The first groove and the first protrusion are respectively used to cooperate and connect with the corresponding positions of the cell.

3. The battery cell assembly according to claim 1, characterized in that, One of the positive and negative electrodes of the battery cell is provided with a second groove, and the other is provided with a second protrusion.

4. The cell assembly according to claim 1, characterized in that, The cell protection board is located inside the cell housing.

5. An electronic device, characterized in that, The electronic device includes a battery cell assembly as described in any one of claims 1-4, the electronic device is provided with a mounting cavity for inserting the battery cell assembly, and the electronic device is provided with a charging and discharging circuit for being electrically connected to the battery cell protection board.

6. The electronic device according to claim 5, characterized in that, The battery cell protection board is located inside the electronic device.

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