laptop computer

By adding a dual-battery pack design to the empty space in the laptop stand, the problem of insufficient capacity of lithium battery modules in the existing technology is solved, and the battery capacity is increased and the service life is extended.

CN224946385UActive Publication Date: 2026-11-06CHANGZHI ZHUOYI HENGTONG INFORMATION SECURITY CO LTD
View PDF 0 Cites 0 Cited by

Patent Information

Application Number
CN202522571607.1
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-12-03
Publication Date
2026-11-06
Estimated Expiration
2035-12-03

AI Technical Summary

Technical Problem

Increasing the capacity of lithium battery modules in existing laptops without increasing their thickness is a technical challenge.

Method used

Add battery cells to the empty space in the laptop's base to create a dual-battery pack, and use a connector for input and output. The first and second battery packs are powered sequentially to extend the battery's lifespan.

Benefits of technology

It increases battery capacity, saves costs, reduces the number of charge/discharge cycles, and extends battery life.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN224946385U_ABST
    Figure CN224946385U_ABST
Patent Text Reader

Abstract

This utility model provides a laptop computer, comprising: a base, a lithium battery module installed within the base, and a rear shell installed on the base; the base has a motherboard, a touchpad module electrically connected to the motherboard, and recesses on both sides of the touchpad module; the touchpad module protrudes towards the rear shell relative to the recesses; the lithium battery module is electrically connected to the motherboard; the lithium battery module is stepped, including a first battery pack and a second battery pack disposed on the first battery pack; the second battery pack is accommodated within the recesses. This utility model adds battery cells to the empty space in the base corresponding to the palm rest position of the laptop, increasing the battery capacity, and is configured as a dual battery pack. The input and output of the dual battery packs use the same connector, which facilitates battery management, saves costs, reduces the number of charge and discharge cycles of one battery pack, and extends battery life.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] This utility model relates to the field of electronic technology, and in particular to a laptop computer. Background Technology

[0002] With the continuous development of electronic technology, notebook computers have become popular due to their small size and portability, and are now widely used in people's daily lives.

[0003] Like traditional desktop computers, laptops consist of a monitor, keyboard / mouse, processor, memory, and hard drive. However, with the same components, laptops are smaller, lighter, and more portable. Generally speaking, portability is the biggest advantage of laptops over desktop computers; they can be taken with you whether you're working or traveling, making them very convenient.

[0004] Existing laptops typically include: a bottom shell, a front shell rotatably connected to the bottom shell, a keyboard and touchpad disposed on the side surface of the bottom shell near the front shell, a display screen disposed on the side surface of the front shell near the bottom shell, and components such as a motherboard and lithium battery module disposed inside the bottom shell.

[0005] Current laptop lithium battery modules are typically composed of multiple battery cells, such as... Figure 1 As shown, three battery cells 100 are arranged into a rectangular battery block to form a lithium battery module 200 for a laptop computer. The front and back of the lithium battery module 200 are both flat surfaces with a uniform thickness. It is installed in the base of the laptop computer, and a motherboard that is electrically connected to the lithium battery module 200 is also installed in the base.

[0006] However, increasing the capacity of lithium battery modules without increasing the thickness of laptops has always been a direction for technological improvement in the industry. Summary of the Invention

[0007] The purpose of this utility model is to provide a laptop computer in which a battery cell is added to the empty space of the base corresponding to the palm rest position of the laptop, thereby increasing the battery capacity and setting it as a dual battery pack. The input and output of the dual battery packs use the same connector, which not only facilitates battery management and saves costs, but also reduces the number of charge and discharge cycles of a battery pack and extends the battery life.

[0008] To achieve the above objectives, this utility model provides a laptop computer, comprising: a base, a lithium battery module installed within the base, and a rear shell installed on the base; the base has a motherboard, a touchpad module electrically connected to the motherboard, and recesses located on both sides of the touchpad module; the touchpad module protrudes towards the rear shell relative to the recesses; the lithium battery module is electrically connected to the motherboard; the lithium battery module is stepped, including a first battery pack and a second battery pack disposed on the first battery pack; the second battery pack is accommodated within the recesses.

[0009] The second battery pack includes two second cells, each housed in one of the two recesses.

[0010] The two second cells are located at opposite ends of the first battery pack on one side, extending into and being accommodated in the two recesses respectively.

[0011] The front of the base is divided into a keyboard area, a touchpad area connected to the keyboard area, and two palm rest areas located on both sides of the touchpad area and connected to the keyboard area; the back of the base is provided with a motherboard corresponding to the keyboard area, a touchpad module corresponding to the touchpad area, and recesses on both sides of the touchpad module corresponding to the two palm rest areas.

[0012] The first battery pack includes three first cells, which are arranged in a rectangular shape and located on two recesses and the touchpad module, respectively.

[0013] The thickness of the first battery pack is suitable for installation between the touchpad module and the back cover.

[0014] The first battery pack and the second battery pack are respectively connected via connectors to achieve input and output.

[0015] The size of the second cell in the second battery pack corresponds to the size of the recess.

[0016] The first battery pack and the second battery pack supply power to the motherboard in sequence.

[0017] The beneficial effects of this utility model are as follows: This utility model provides a laptop computer in which battery cells are added to the empty space of the base corresponding to the palm rest position of the laptop, thereby increasing the battery capacity and setting it as a dual battery pack. The input and output of the dual battery packs use the same connector, which not only facilitates battery management and saves costs, but also reduces the number of charge and discharge cycles of a battery pack and extends the battery life. Attached Figure Description

[0018] To further understand the features and technical content of this utility model, please refer to the following detailed description and accompanying drawings. However, the drawings are provided for reference and illustration only and are not intended to limit the scope of this utility model. In the drawings,

[0019] Figure 1 This is a front view of a lithium battery module in an existing laptop computer.

[0020] Figure 2 This is a schematic diagram of the back of a lithium battery module in an existing laptop computer.

[0021] Figure 3 This is an exploded perspective view of the notebook computer of this utility model;

[0022] Figure 4 This is a front view of the lithium battery module of the laptop computer according to the present invention;

[0023] Figure 5 This is a schematic diagram of the back of the lithium battery module of the laptop computer of this utility model. Detailed Implementation

[0024] To further illustrate the technical means and effects of this utility model, the following detailed description is provided in conjunction with the preferred embodiments of this utility model and their accompanying drawings.

[0025] Please see Figures 3 to 5 This utility model provides a laptop computer, including: a base 3, a lithium battery module 5 installed in the base 3, and a back cover 7 installed on the base 3.

[0026] The front of the base 3 can be divided into a keyboard area, a touchpad area connected to the keyboard area, and two palm rest areas located on both sides of the touchpad area and connected to the keyboard area. The back of the base 3 has a mainboard 30 corresponding to the keyboard area, a touchpad module 32 corresponding to the touchpad area and electrically connected to the mainboard 30, and recesses 34 on both sides of the touchpad module 32 corresponding to the two palm rest areas. The touchpad module 32 protrudes towards the rear shell 7 relative to the recesses 34. For a long time, the recesses 34 have been left unused.

[0027] The lithium battery module 5 is electrically connected to the motherboard 30. The lithium battery module 5 is stepped and includes a first battery pack 52 and a second battery pack 54 disposed on the first battery pack 52. The thickness of the first battery pack 52 is similar to that of existing lithium battery modules, suitable for mounting between the touchpad module 32 and the back cover 7. The first battery pack 52 includes three first cells 522, arranged in a rectangular shape, located on two recesses 34 and the touchpad module 32, respectively. The second battery pack 54 includes two second cells 540, located at opposite ends of the first battery pack 52 to extend into and be accommodated within the recesses 34. The dimensions of the second cells 540 of the second battery pack 54 correspond to the dimensions of the recesses 34.

[0028] The input and output of the first battery pack 52 and the second battery pack 54 use the same connector 56. The first battery pack 52 and the second battery pack 54 supply power to the motherboard 30 sequentially. When the battery capacity of the first battery pack 52 reaches a set value (e.g., 5%), it will automatically switch to power from the second battery pack 54. Typically, laptops are not charged only when the battery is completely depleted; they are plugged in to charge whenever convenient. Therefore, the second battery pack 54 is used less frequently, resulting in fewer charging cycles. This dual-battery design improves the overall battery life of the lithium battery module 5 by using the second battery pack 54, while also reducing the number of charge / discharge cycles of the second battery pack 54, thus extending its lifespan and consequently the lifespan of the lithium battery module 5.

[0029] In summary, this utility model provides a laptop computer that adds battery cells to the empty space in the base corresponding to the palm rest position of the laptop, thereby increasing the battery capacity and setting it as a dual battery pack. The input and output of the dual battery packs use the same connector, which not only facilitates battery management and saves costs, but also reduces the number of charge and discharge cycles of a battery pack and extends battery life.

[0030] As described above, those skilled in the art can make various other corresponding changes and modifications based on the technical solution and concept of this utility model, and all such changes and modifications should fall within the protection scope of the claims of this utility model.

Claims

1. A laptop computer, characterized in that, include: The base (3), the lithium battery module (5) installed in the base (3), and the back cover (7) installed on the base (3); the base (3) is provided with a main board (30), a touch panel module (32) electrically connected to the main board (30), and recesses (34) located on both sides of the touch panel module (32); the touch panel module (32) protrudes towards the back cover (7) relative to the recesses (34); the lithium battery module (5) is electrically connected to the main board (30); the lithium battery module (5) is stepped and includes a first battery pack (52) and a second battery pack (54) disposed on the first battery pack (52); the second battery pack (54) is accommodated in the recesses (34).

2. The laptop computer as described in claim 1, characterized in that, The second battery pack (54) includes two second cells (540), which are respectively housed in two recesses (34).

3. The laptop computer as described in claim 2, characterized in that, The two second cells (540) are located at opposite ends of the first battery pack (52) to extend into and be accommodated in the two recesses (34).

4. The laptop computer as described in claim 1, characterized in that, The front of the base (3) is divided into a keyboard area, a touchpad area connected to the keyboard area, and two palm rest areas located on both sides of the touchpad area and connected to the keyboard area; the back of the base (3) is provided with a motherboard (30) corresponding to the keyboard area, a touchpad module (32) corresponding to the touchpad area, and recesses (34) on both sides of the touchpad module (32) corresponding to the two palm rest areas.

5. The laptop computer as described in claim 1, characterized in that, The first battery pack (52) includes three first cells (522), which are arranged in a rectangular shape and located on two recesses (34) and the touch panel module (32), respectively.

6. The laptop computer as described in claim 5, characterized in that, The thickness of the first battery pack (52) is suitable for installation between the touchpad module (32) and the back cover (7).

7. The laptop computer as claimed in claim 1, characterized in that, The first battery pack (52) and the second battery pack (54) are respectively connected to the connector (56) for input and output.

8. The laptop computer as described in claim 2, characterized in that, The size of the second cell (540) of the second battery pack (54) corresponds to the size of the recess (34).

9. The laptop computer as claimed in claim 1, characterized in that, The first battery pack (52) and the second battery pack (54) supply power to the motherboard (30) in sequence.