Protective plate with temperature monitoring function and soft package battery

Abstract

The utility model relates to a protection board with temperature monitoring and a soft package battery, the protection board with temperature monitoring comprises a main board, a temperature monitoring board and a flexible connection part, the temperature monitoring board is connected with the main board through the flexible connection part, the flexible connection part extends outwards from one side of the main board and is bent reversely, and the temperature monitoring board is connected with the main board through the flexible connection part. The temperature monitoring board is arranged on the mainboard so that the temperature monitoring board can be opposite to the mainboard, a bonding piece is arranged between the temperature monitoring board and the mainboard, and the surfaces of the two sides of the bonding piece are bonded with the temperature monitoring board and the mainboard respectively. According to the utility model, the temperature monitoring plate can be fixed, so that the stability of the structure is kept, collision and damage of devices caused by swinging of the temperature monitoring plate are avoided, subsequent assembly is facilitated, and the assembly efficiency and quality are improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to a battery technical field, specifically, relate to a kind of protection board and soft package battery with temperature monitoring. BACKGROUND

[0002] With the continuous popularity of electronic products in daily life, the performance requirements of batteries are also increasing. The existing battery is mainly composed of an electric core and a protection board. In order to ensure the safety of the electric core, the protection board usually has the function of monitoring the temperature of the electric core. The existing temperature monitoring structure usually has a soft plate extending from the protection board, and a thermosensitive element is welded on the soft plate. However, the extending soft plate lacks fixation and will move around during the assembly process of the battery, which can easily cause the device to be damaged by collision, affecting the quality of the product. SUMMARY

[0003] The utility model aims to provide a protection board and soft package battery with temperature monitoring, which can fix the temperature monitoring board, maintain the stability of the structure, avoid the collision and damage of the device caused by the swing of the temperature monitoring board, and facilitate subsequent assembly, which is beneficial to improve the assembly efficiency and quality.

[0004] A protection board with temperature monitoring includes a main board, a temperature monitoring board, and a flexible connection part. The temperature monitoring board is connected to the main board through the flexible connection part. The flexible connection part extends outward from one side of the main board and reversely bends to make the temperature monitoring board opposite to the main board. An adhesive is arranged between the temperature monitoring board and the main board, and the two side surfaces of the adhesive are respectively adhered to the temperature monitoring board and the main board.

[0005] In the above technical solution, the temperature monitoring board is connected to the main board through the flexible connection part. The flexible connection part reversely bends to make the temperature monitoring board opposite to the main board, and then the temperature monitoring board is fixed to the main board through the adhesive, so as to avoid the swing of the temperature monitoring board and the collision and damage of the device. Moreover, the stable structure of the temperature monitoring board is beneficial to improve the efficiency and quality in the subsequent assembly process. The flexible connection part of the structure extends outward and reversely bends, which can make the temperature monitoring board located on the side close to the electric core, so as to ensure the accuracy of temperature monitoring and improve the safety and reliability of the product.

[0006] Further, the main board is provided with an extension arm at both ends. The extension arm reversely bends to be opposite to the main board, and the end of the extension arm is provided with a connector.

[0007] In the above technical solution, the extension arm bends to make the connector located at the position opposite to the main board, which can save space and improve the utilization rate of the space at the top of the electric core on the one hand, and facilitate processing and assembly on the other hand.

[0008] Further, the connector extends horizontally outward in a direction perpendicular to the extension arm.

[0009] In the above technical solution, the connector extends horizontally outward, which can facilitate connection with external equipment and use more flexibly and conveniently.

[0010] Further, the temperature monitoring plate is provided with a plurality of thermal elements.

[0011] In the above technical solution, the thermal elements can sense the temperature of the battery cell, thereby realizing monitoring of the temperature of the battery cell, and the protection plate can control the output or input state of the battery cell according to the temperature, thereby ensuring the performance and safety of the battery cell.

[0012] Further, the adhesive member is double-sided adhesive tape.

[0013] In the above technical solution, the double-sided adhesive tape is used to fix the temperature monitoring plate and the main plate, which is simple in structure and easy to implement.

[0014] A soft package battery includes a battery cell and the above-mentioned protection plate with temperature monitoring, the battery cell includes a top surface, the top surface is provided with a top sealing portion, and the protection plate with temperature monitoring is arranged adjacent to the top sealing portion.

[0015] Further, the battery cell includes a tab, the tab extends from the top sealing portion and is reversely bent, and the tab is electrically connected to the main plate.

[0016] In the above technical solution, the tab is electrically connected to the main plate through bending, which can save space and ensure the stability of the connection between the protection plate and the battery cell.

[0017] Further, the temperature monitoring plate is clamped between the top sealing portion and the main plate.

[0018] In the above technical solution, the temperature monitoring plate is clamped between the top sealing portion and the main plate, which can further limit the temperature monitoring plate and improve the stability of the structure.

[0019] Further, a protective film is further included, and the protective film wraps the main plate and the top sealing portion.

[0020] In the above technical solution, the protective film can play a protective and insulating role.

[0021] Compared with the prior art, the utility model discloses the beneficial effect is: temperature monitoring board is connected with mainboard through flexible connecting portion, and the flexible connecting portion reverse bending makes temperature monitoring board with mainboard opposite, and then through the adhesion piece makes temperature monitoring board with mainboard opposite fixed, to avoid temperature monitoring board swing, and then avoid device collision damage, and because the structure of temperature monitoring board is stable, it is favorable to improve efficiency and quality in the subsequent assembly process.The flexible connecting portion of this structure is stretched out and reversely bent, which can make the temperature monitoring board located on the side close to the battery cell, thereby ensuring the accuracy of temperature monitoring and improving the safety and reliability of the product. BRIEF DESCRIPTION OF DRAWINGS

[0022] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the following will briefly introduce the drawings needed to be used in the embodiments. It should be understood that the following drawings only show some embodiments of the present application, and therefore should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can also be obtained without creative labor.

[0023] Figure 1 The structure diagram of the protective plate with temperature monitoring of the utility model embodiment.

[0024] Figure 2 The side view of the protective plate with temperature monitoring of the utility model embodiment.

[0025] Figure 3 The structure diagram of the soft package battery of the utility model embodiment.

[0026] Figure 4 The structure diagram of the soft package battery of the utility model embodiment after hiding the protective film.

[0027] Figure 5 The partial enlarged view of Figure 4 .

[0028] BRIEF DESCRIPTION OF DRAWINGS

[0029] Mainboard 1, extension arm 11, connector 12, temperature monitoring board 2, flexible connecting portion 3, battery cell 4, top surface 41, top sealing portion 42, tab 43, protective film 5, adhesive 6. DETAILED DESCRIPTION

[0030] In order to make the purpose, technical solutions and advantages of the embodiments of the present application more clear, the following will combine the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are some of the embodiments of the present application, not all the embodiments. The components of the embodiments of the present application described and shown in the drawings here can be arranged and designed in various different configurations.

[0031] The following detailed description of embodiments of the application provided in the accompanying drawings is not intended to limit the scope of the application as claimed, but merely represents selected embodiments of the application. Based upon the embodiments herein, all other embodiments obtained by those of ordinary skill in the art without having to make inventive efforts are within the scope of protection of the application.

[0032] Reference is made to Figure 1 and Figure 2 In a preferred embodiment, the protection plate with temperature monitoring of the utility model mainly comprises a main plate 1, a temperature monitoring plate 2 and a flexible connecting part 3. Among them, the temperature monitoring plate 2 is connected with the main plate 1 through the flexible connecting part 3, the flexible connecting part 3 extends outward from one side of the main plate 1 and reversely bends to make the temperature monitoring plate 2 opposite to the main plate 1, and an adhesive 6 is arranged between the temperature monitoring plate 2 and the main plate 1, and the two side surfaces of the adhesive 6 are respectively adhered to the temperature monitoring plate 2 and the main plate 1.

[0033] For example, the main plate 1 and the temperature monitoring plate 2 can adopt flexible circuit boards, and the main plate 1 and the temperature monitoring plate 2 are respectively provided with protection circuits and temperature sensing circuits, wherein the protection circuits and the temperature sensing circuits can be used as they are, and the application will not be described here. The main plate 1, the temperature monitoring plate 2 and the flexible connecting part 3 are an integral structure, the flexible connecting part 3 is arranged on one side of the main plate 1 in the width direction, one end of the flexible connecting part 3 is connected with the main plate 1, and the other end extends outward from the side of the main plate 1 and reversely bends to be connected with the temperature monitoring plate 2, so that the temperature monitoring plate 2 is opposite to the main plate 1. In this embodiment, the adhesive 6 is double-sided adhesive tape, and the two side surfaces of the adhesive 6 are respectively adhered to the temperature monitoring plate 2 and the main plate 1, so that the two are relatively fixed. It can be understood that in other possible embodiments, the adhesive 6 can use existing adhesive materials such as glue.

[0034] As can be seen from the above technical solution, the temperature monitoring plate 2 is connected with the main plate 1 through the flexible connecting part 3, the flexible connecting part 3 reversely bends to make the temperature monitoring plate 2 opposite to the main plate 1, and then the temperature monitoring plate 2 is fixed relative to the main plate 1 through the adhesive 6, so as to avoid the swing of the temperature monitoring plate 2, and further avoid the collision damage of the device, and since the structure of the temperature monitoring plate 2 is stable, it is beneficial to improve the efficiency and quality in the subsequent assembly process. The flexible connecting part 3 of the structure extends outward and reversely bends, which can make the temperature monitoring plate 2 located on the side close to the battery cell 4, so as to ensure the accuracy of temperature monitoring and improve the safety and reliability of the product.

[0035] The two ends of the main plate 1 are provided with extension arms 11, the extension arms 11 are reversely bent to be opposite to the main plate 1, and the end portions of the extension arms 11 are provided with connectors 12. Exemplarily, the extension arms 11 are two, the two extension arms 11 are located at the two ends of the main plate 1 in the length direction and are integrally formed with the main plate 1. The connectors 12 are provided with two corresponding to the extension arms 11, the connectors 12 are located at the end portions of the corresponding extension arms 11 and are used for connecting with external devices. The extension arms 11 are bent to make the connectors 12 located at the positions opposite to the main plate 1, on the one hand, space can be saved and the utilization rate of the space on the top of the battery cell 4 can be improved, on the other hand, processing and assembly are facilitated.

[0036] In the embodiment, the connectors 12 extend horizontally and outwardly along the direction perpendicular to the extension arms 11. It can be understood that the two extension arms 11 are located on the same side of the main plate 1 in the width direction, when the protection plate is installed on the battery cell 4, the extension arms 11 extend outwardly in the direction away from the battery cell 4, thereby facilitating connection with external devices and being more flexible and convenient to use.

[0037] The temperature monitoring plate 2 is provided with a plurality of thermal elements. In specific implementation, the thermal elements can be existing ones, for example, thermal resistors. The temperature of the battery cell 4 can be sensed by the thermal elements, so that the temperature of the battery cell 4 is monitored, and the protection plate can control the output or input state of the battery cell 4 according to the temperature, so as to ensure the performance and safety of the battery cell 4.

[0038] Please refer to Figures 3 to 5 The utility model also provides a soft package battery, including battery cell 4, and the protection plate with temperature monitoring, battery cell 4 includes top surface 41, and top surface 41 is equipped with top seal part 42, and the protection plate with temperature monitoring is adjacent to top seal part 42.

[0039] Exemplarily, the battery cell 4 is generally cuboid, one end surface of the battery cell 4 is formed as the top surface 41, the top seal part 42 is formed by heat sealing of the aluminum-plastic film wrapping the battery cell 4, extends along the direction perpendicular to the top surface 41, and the protection plate with temperature monitoring is arranged on the top surface 41 of the battery cell 4 and adjacent to the top seal part 42.

[0040] The battery cell 4 includes a tab 43, the tab 43 extends from the top seal part 42 and reversely bends, and the tab 43 is electrically connected with the main plate 1. In the embodiment, the tab 43 is two, the two tabs 43 are respectively connected with the positive electrode and the negative electrode of the battery cell 4. The tab 43 extends from the top seal part 42, initially extends along the direction perpendicular to the top surface 41, reversely bends and is electrically connected with the side surface of the main plate 1 facing the top seal part 42, so as to connect the battery cell 4 and the protection plate. The tab 43 is electrically connected with the main plate 1 by bending, can save space and ensure the stability of the connection between the protection plate and the battery cell 4.

[0041] In the embodiment, the temperature monitoring plate 2 is clamped between the top sealing part 42 and the main plate 1. It can be understood that when the protection plate is installed on the top surface 41 of the battery cell 4, the main plate 1 is parallel to the top sealing part 42, and a gap is formed between the two, and the temperature monitoring plate 2 is clamped between the two, and the top sealing part 42 can further limit the temperature monitoring plate 2, thereby improving the stability of the structure.

[0042] In the embodiment, the protection film 5 is further included, and the protection film 5 wraps the main plate 1 and the top sealing part 42. The existing protection film 5 can be used, specifically, one end of the protection film 5 is inserted between the extension arm 11 and the main plate 1 and is fixed by glue, so as to ensure the insulation performance between the extension arm 11 and the main plate 1, and the other end of the protection film 5 is bent and extends to the surface of the side of the top sealing part 42 away from the protection plate, so as to shield the tab 43 and the top sealing part 42, thereby playing a protection and insulation role.

[0043] In the description of the present application, it should be understood that the terms such as "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation of the present application.

[0044] In addition, the terms "first", "second" are only for the purpose of description, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first", "second" can explicitly or implicitly include one or more of the features. In the description of the present application, the meaning of "multiple" is two or more, unless otherwise specifically limited.

[0045] Although the embodiments of the present application have been shown and described, it can be understood by those skilled in the art that various changes, modifications, replacements and variations can be made to the embodiments without departing from the principles and spirits of the present application, and the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. A protection plate with temperature monitoring, characterized in that, The temperature monitoring protection plate comprises a main plate, a temperature monitoring plate and a flexible connecting part, the temperature monitoring plate is connected with the main plate through the flexible connecting part, the flexible connecting part extends outward from one side of the main plate and reversely bends to make the temperature monitoring plate opposite to the main plate, an adhesive is arranged between the temperature monitoring plate and the main plate, and the two side surfaces of the adhesive are respectively adhered to the temperature monitoring plate and the main plate.

2. The temperature monitored protection plate of claim 1, wherein, The main plate is provided with extension arms at two ends, the extension arms reversely bend to be opposite to the main plate, and the end of the extension arm is provided with a connector.

3. The temperature monitored protection plate of claim 2, wherein, The connector extends horizontally outward in a direction perpendicular to the extension arm.

4. The temperature monitored protection board of claim 1, wherein, The temperature monitoring plate is provided with a plurality of thermal elements.

5. The temperature monitored protection board of claim 1, wherein, The adhesive is double-sided adhesive tape.

6. A pouch battery, characterized by, The temperature monitoring protection plate comprises a main plate, a temperature monitoring plate and a flexible connecting part, the temperature monitoring plate is connected with the main plate through the flexible connecting part, the flexible connecting part extends outward from one side of the main plate and reversely bends to make the temperature monitoring plate opposite to the main plate, an adhesive is arranged between the temperature monitoring plate and the main plate, and the two side surfaces of the adhesive are respectively adhered to the temperature monitoring plate and the main plate.

7. The pouch battery of claim 6, wherein, The main plate is provided with extension arms at two ends, the extension arms reversely bend to be opposite to the main plate, and the end of the extension arm is provided with a connector. 8.The pouch battery of claim 6, wherein, The connector extends horizontally outward in a direction perpendicular to the extension arm.

9. The pouch battery of claim 6, wherein, The temperature monitoring plate is provided with a plurality of thermal elements. The adhesive is double-sided adhesive tape. The temperature monitoring protection plate comprises a main plate, a temperature monitoring plate and a flexible connecting part, the temperature monitoring plate is connected with the main plate through the flexible connecting part, the flexible connecting part extends outward from one side of the main plate and reversely bends to make the temperature monitoring plate opposite to the main plate, an adhesive is arranged between the temperature monitoring plate and the main plate, and the two side surfaces of the adhesive are respectively adhered to the temperature monitoring plate and the main plate. The main plate is provided with extension arms at two ends, the extension arms reversely bend to be opposite to the main plate, and the end of the extension arm is provided with a connector. The connector extends horizontally outward in a direction perpendicular to the extension arm. The temperature monitoring plate is provided with a plurality of thermal elements. The adhesive is double-sided adhesive tape. The temperature monitoring protection plate comprises a main plate, a temperature monitoring plate and a flexible connecting part, the temperature monitoring plate is connected with the main plate through the flexible connecting part, the flexible connecting part extends outward from one side of the main plate and reversely bends to make the temperature monitoring plate opposite to the main plate, an adhesive is arranged between the temperature monitoring plate and the main plate, and the two side surfaces of the adhesive are respectively adhered to the temperature monitoring plate and the main plate. The main plate is provided with extension arms at two ends, the extension arms reversely bend to be opposite to the main plate, and the end of the extension arm is provided with a connector. The connector extends horizontally outward in a direction perpendicular to the extension arm. The temperature monitoring plate is provided with a plurality of thermal elements. The adhesive is double-sided adhesive tape. The temperature monitoring protection plate comprises a main plate, a temperature monitoring plate and a flexible connecting part, the temperature monitoring plate is connected with the main plate

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