Lithium battery packaging structure with high signal transmission efficiency

Abstract

The utility model discloses a lithium battery packaging structure with efficient signal transmission, which comprises a metal box body, a lithium battery pack, a lithium battery management module and a wireless signal transmission module, and the wireless signal transmission module comprises a transceiving antenna; the lithium battery packaging structure further comprises an acrylic shell located outside the metal box body and provided with a containing cavity, the containing cavity is communicated with a cavity in the metal box body through a through hole in the side wall of the metal box body, and the lithium battery pack and the lithium battery management module are installed in the metal box body. At least the receiving and transmitting antenna in the wireless signal transmission module is installed in the containing cavity, and the wireless signal transmission module is in wired data connection with the lithium battery management module through a flexible flat cable penetrating through the through hole. Compared with the prior art, according to the small game, the wireless signal transmission module is packaged in the acrylic shell outside the metal box body, transmission is stable, and accuracy is high.

Description

Technical Field

[0001] The utility model relates to the field of lithium batteries, in particular to the packaging of lithium batteries. Background Art

[0002] When assembling traditional lithium-ion battery packs, the outer shell is typically constructed using an iron casing for battery safety. The BMS and Bluetooth components are enclosed within the iron casing. When connected to a mobile phone or other receiver, the iron casing interferes with the signal, impacting the user experience and creating a poor user experience. In the event of a battery anomaly, such as overdischarge or overheating, an alert is sent to the driver's phone via Bluetooth. However, if Bluetooth signal transmission is limited, this poses a safety hazard.

[0003] Therefore, there is an urgent need for a lithium battery packaging structure that can solve the above problems. Utility Model Content

[0004] The purpose of the utility model is to provide a lithium battery packaging structure, which encapsulates a wireless signal transmission module in an acrylic shell outside a metal box, and the transmission is stable and accurate.

[0005] In order to achieve the above-mentioned objectives, the present invention provides a lithium battery packaging structure with efficient signal transmission, including a metal box, a lithium battery pack, a lithium battery management module and a wireless signal transmission module, wherein the wireless signal transmission module includes a transceiver antenna; the lithium battery packaging structure also includes an acrylic shell located outside the metal box and having a accommodating cavity, the accommodating cavity is connected to the cavity inside the metal box through a through hole on the side wall of the metal box, the lithium battery pack and the lithium battery management module are installed in the metal box, at least the transceiver antenna in the wireless signal transmission module is installed in the accommodating cavity, and the wireless signal transmission module is connected to the lithium battery management module by a wired data connection through a soft cable passing through the through hole.

[0006] Preferably, the lithium battery packaging structure also includes an operating switch, which is independent of the metal box body and is wired to the lithium battery management module. The outer shell of the operating switch is the acrylic shell, and the wireless signal transmission module is installed in the operating switch.

[0007] More preferably, the operating member of the operating switch is an operating button or an operating handle, the operating member is located at the top of the operating switch, and at least the transceiver antenna in the wireless signal transmission module is installed in the operating member.

[0008] Preferably, the metal box has a handle, the handle includes an acrylic piece having the accommodating cavity to form an acrylic shell, and the wireless signal transmission module is installed in the accommodating cavity.

[0009] More preferably, the accommodating cavity of the acrylic shell is located at an end of the handle away from the metal box.

[0010] Specifically, the handle includes a metal handle portion rotatably connected to the metal box body, and the metal handle portion is wrapped with the acrylic shell.

[0011] More preferably, the metal handle portion includes two metal support rods positioned opposite to each other, metal rotating shafts respectively bent and connected to the front ends of the two metal support rods, and metal handle rods respectively connected to the ends of the two metal support rods. The acrylic shell is cylindrical and is sleeved on the outside of the metal handle rods. The metal handle portion is a hollow structure for the flexible cable to pass through. The metal handle portion is rotatably mounted on the metal box body through the metal rotating shaft.

[0012] A metal fixing plate is fixed to the side wall of the metal case where the through hole is formed. The center of the metal fixing plate is bent outward to form a rotation cavity with the metal case, which is rotatably connected to the metal rotating shaft. The metal fixing plate effectively blocks the through hole, preventing it from disrupting the shielding environment within the metal cavity and preventing external signals from interfering with the lithium battery management module.

[0013] Preferably, the wireless signal transmission module is a Bluetooth module. Of course, the wireless signal transmission module can also be other modules, such as a WIFI module, a Zigbee module, etc.

[0014] Preferably, the top surface of the package body of the Bluetooth module has an electromagnetic reflective film, and the electromagnetic reflective film expands the transmitting and receiving angle of the Bluetooth module.

[0015] Compared to existing technologies, the present invention places the wireless signal transmission module outside the metal housing housing the lithium battery and lithium battery management module, using an acrylic shell as the housing for the wireless signal transmission module. This effectively reduces interference from the external electromagnetic environment on the Bluetooth signal, improving the stability and accuracy of signal transmission. Furthermore, acrylic shells are affordable and can be designed to be relatively small and aesthetically pleasing, allowing them to better integrate into the product's design without affecting the overall aesthetics. Furthermore, acrylic shells reduce signal reflections, thereby improving signal transmission efficiency and quality, reducing signal attenuation, ensuring signal strength, and providing excellent electromagnetic shielding. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a three-dimensional diagram of the lithium battery packaging structure in Example 1 of the present utility model.

[0017] Figure 2 It is an exploded view of the operating switch of the utility model.

[0018] Figure 3This is a structural diagram of the lithium battery packaging structure metal box 10 in Example 1 of the present invention after removing the upper cover.

[0019] Figure 4 This is a partial exploded view of another lithium battery packaging structure in Example 1 of the present invention.

[0020] Figure 5 It is a three-dimensional diagram of the lithium battery packaging structure in Example 2 of the present utility model.

[0021] Figure 6 It is a cross-sectional view of the handle portion in Example 2 of the present utility model. DETAILED DESCRIPTION

[0022] In order to explain the technical content, structural features, achieved objectives and effects of the present invention in detail, the following is a detailed description in conjunction with the embodiments and the accompanying drawings.

[0023] refer to Figures 1 to 4 The present invention discloses a lithium battery packaging structure 100 with efficient signal transmission, comprising a metal case 10, a lithium battery pack 30, a lithium battery management module 20 and a wireless signal transmission module 70, wherein the wireless signal transmission module 70 includes a transceiver antenna; the lithium battery packaging structure 100 also includes an acrylic shell 60 located in the metal case 10 and having a receiving cavity 61, wherein the receiving cavity 61 is connected to a chamber in the metal case 10 through a through hole 11 on the side wall of the metal case 10, the lithium battery pack 30 and the lithium battery management module 20 are installed in the metal case 10, at least the transceiver antenna in the wireless signal transmission module 70 is installed in the receiving cavity 61, and the wireless signal transmission module 70 is connected to the lithium battery management module 20 via a flexible flat cable 40 passing through the through hole to establish a wired data connection with the lithium battery management module 20.

[0024] refer to Figure 1 and Figure 2 The lithium battery packaging structure 100 further includes an operating switch 50, which is independent of the metal housing 10 and is wiredly connected to the lithium battery management module 20. The operating switch 50 is enclosed in the acrylic housing 60, and the wireless signal transmission module 70 is installed in the operating switch 50. The connection line of the operating switch 50 is connected to the lithium battery management module 20 in the metal housing 10 through an interface.

[0025] refer to Figure 1 and Figure 2 The operating member 51 of the operating switch 50 is an operating button. Of course, the operating member can also be a lever. The operating member 51 is located at the top of the operating switch 50, and at least the transceiver antenna in the wireless signal transmission module 70 is installed in the operating member 51.

[0026] The wireless signal transmission module 70 is a Bluetooth module, and the metal box 10 is an iron box.

[0027] Preferably, the top surface of the package of the Bluetooth module has an electromagnetic reflective film, and the electromagnetic reflective film expands the transmitting and receiving angle of the Bluetooth module.

[0028] Example 2:

[0029] refer to Figure 5 and Figure 6 The metal box 10 has a handle, and the handle includes an acrylic member having the accommodating cavity 61a to form an acrylic shell 60a. Different from Example 1, in Example 2, the wireless signal transmission module 70 is installed in the accommodating cavity 61a.

[0030] Specifically, the handle includes a metal handle portion 80 rotatably connected to the metal box body 10 , and the metal handle portion 80 is wrapped with the acrylic shell 60 a.

[0031] Continue to refer Figure 5 and Figure 6 The metal handle portion 80 includes two metal support rods 81 positioned opposite to each other, metal rotating shafts respectively bent and connected to the front ends of the two metal support rods 81, and metal handle rods 82 respectively connected to the ends of the two metal support rods. The acrylic shell 60 is cylindrical and is sleeved on the outside of the metal handle rods 80. The metal handle portion 80 is a hollow structure for the flexible cable 40 to pass through. The metal handle portion 80 is rotatably mounted on the metal box 10 through the metal rotating shaft.

[0032] A metal fixing plate 90 is fixed to the side wall of the metal box 10 where the through hole is opened. The middle of the metal fixing plate 90 is bent outward to form a rotating cavity 91 rotatably connected to the metal rotating shaft between the metal box 10 .

[0033] Of course, the handle may also be made of acrylic material, and the wireless signal transmission module 70 may be installed in the hollow cavity of the handle.

[0034] The above disclosure is only a preferred embodiment of the present invention, and certainly cannot be used to limit the scope of rights of the present invention. Therefore, equivalent changes made according to the scope of the patent application of the present invention are still within the scope covered by the present invention.

Claims

1. A lithium battery packaging structure with efficient signal transmission, characterized by: It includes a metal box, a lithium battery pack, a lithium battery management module and a wireless signal transmission module, and the wireless signal transmission module includes a transceiver antenna; the lithium battery packaging structure also includes an acrylic shell located outside the metal box and having a accommodating cavity, and the accommodating cavity is connected to the cavity inside the metal box through a through hole on the side wall of the metal box. The lithium battery pack and the lithium battery management module are installed in the metal box, and at least the transceiver antenna in the wireless signal transmission module is installed in the accommodating cavity. The wireless signal transmission module is connected to the lithium battery management module by a wired data connection via a soft cable passing through the through hole.

2. The lithium battery packaging structure according to claim 1, wherein: The acrylic shell and the metal box are independent of each other or movably connected, and there is a distance between the accommodating cavity for installing the lithium battery management module and the metal box.

3. The lithium battery packaging structure according to claim 2, wherein: It also includes an operating switch, which is independent of the metal box body and is connected to the lithium battery management module by wire. The shell of the operating switch is the acrylic shell, and the wireless signal transmission module is installed in the operating switch.

4. The lithium battery packaging structure according to claim 3, wherein: The operating member of the operating switch is an operating button or an operating handle, and the operating member is located at the top of the operating switch. At least the transceiver antenna in the wireless signal transmission module is installed in the operating member.

5. The lithium battery packaging structure according to claim 1, wherein: The metal box body is provided with a handle, and the handle comprises an acrylic piece having the accommodating cavity to form an acrylic shell, and the wireless signal transmission module is installed in the accommodating cavity.

6. The lithium battery packaging structure according to claim 5, wherein: The accommodating cavity of the acrylic shell is located at an end of the handle away from the metal box body.

7. The lithium battery packaging structure according to claim 6, wherein: The handle includes a metal handle portion rotatably connected to the metal box body, and the metal handle portion is wrapped with the acrylic shell; the metal handle portion includes two metal support rods positioned opposite to each other, metal rotating shafts respectively bent and connected to the front ends of the two metal support rods, and metal handle rods respectively connected to the ends of the two metal support rods. The acrylic shell is cylindrical and is sleeved on the outside of the metal handle rod. The metal handle portion is a hollow structure for the flexible cable to pass through, and the metal handle portion is rotatably mounted on the metal box body through the metal rotating shaft.

8. The lithium battery packaging structure according to claim 7, wherein: A metal fixing plate is fixed outside the side wall of the metal box body where the through hole is opened. The middle of the metal fixing plate is bent outward to form a rotation cavity rotatably connected to the metal rotation shaft between the metal fixing plate and the metal box body.

9. The lithium battery packaging structure according to claim 1, wherein: The wireless signal transmission module is a Bluetooth module.

10. The lithium battery packaging structure according to claim 9, wherein: The top surface of the package body of the Bluetooth module is provided with an electromagnetic reflection film, and the electromagnetic reflection film expands the transmitting and receiving angle of the Bluetooth module.

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