CN201628925U - a laptop battery - Google Patents

Abstract

The utility model relates to a laptop battery (3). The laptop battery (3) comprises a casing with an electrical interface, an electric control switch (1) and a battery pack with a control circuit, wherein the electric control circuit and the battery pack are sequentially connected with the electrical interface. The laptop battery (3) also comprises voltage detection module with one end thereof electrically connected with the control end of the electric control switch (1) and the other end thereof electrically connected between the electric control switch (1) and the electrical interface, and the control end of the electric control switch (1) is also electronically connected with a physical switch (2). Through the physical switch and the voltage detection module dual control and the electric control switch serving as the circuit path between the laptop battery and a laptop, the laptop battery provided by the utility model can selectively disconnect the laptop battery as user needs, so as to ensure the normal service life of the laptop battery; and can also automatically switch to the disconnected laptop battery in case of power down, so as to ensure use safety of users.

Description

a laptop battery

technical field

The utility model relates to a rechargeable battery, in particular to a notebook battery.

Background technique

The Chinese utility model “A Notebook Battery” previously filed by the applicant discloses a notebook battery including a shell with an electrical interface, a physically controlled electrical connection switch electrically connected to the electrical interface in turn, a battery pack and its control circuit . This kind of notebook battery uses a power connection/disconnection device that is simple in structure, easy to use and suitable for all notebooks, but when using this device to cut off the battery pack and the notebook circuit channel, once the external power supply suddenly disappears, such as: power failure or kicking off the power cord, At this time, it cannot be automatically switched to be powered by the notebook battery, which may cause heavy losses to the user and lose a major advantage of the notebook.

Contents of the invention

The technical problem to be solved by the utility model is how to provide a notebook battery, which can selectively cut off the circuit channel between the notebook battery and the notebook according to user needs and automatically open the circuit channel when there is no external power supply.

The technical problem of the utility model is solved in this way: construct a kind of notebook battery, comprise the shell of charged interface and the electric control switch that is electrically connected with described electric interface successively and the battery pack with control circuit, also comprise one end and described electric control switch control One terminal is electrically connected, the other end is electrically connected to the voltage detection module between the electric control switch and the electrical interface, and the control terminal of the electric control switch is also electrically connected to the physical switch.

According to the notebook battery provided by the utility model, the electric control switch includes but is not limited to a field effect transistor.

According to the notebook battery provided by the present invention, the physical switch is exposed on the outside of the casing after it is installed in the notebook, preferably on the side of the outside.

According to the notebook battery provided by the utility model, the physical switch includes but is not limited to a tact switch.

According to the notebook battery provided by the utility model, the voltage detection module is built in the control circuit.

The notebook battery provided by the utility model has the following advantages compared with the prior art through the dual control of the physical switch and the voltage detection module as the electronic control switch of the circuit channel between the notebook battery and the notebook:

1. You can still choose to cut off the power channel according to the user's needs: to ensure the normal service life of the notebook battery;

2. When the power is off, it can automatically switch to the cut-off notebook battery to ensure the safe use of users and maintain the important advantage of notebooks. the

Description of drawings

The utility model is further described in detail below in conjunction with the accompanying drawings and specific embodiments.

Fig. 1 is a schematic structural diagram of a notebook battery circuit according to a specific embodiment of the present invention;

Fig. 2 is a schematic diagram of the appearance structure of a preferred embodiment of the present invention.

Detailed ways

The specific embodiment of the utility model is a notebook battery, the internal circuit is as shown in Figure 1, and the control terminal and the notebook battery pack control circuit for cutting off/connecting the battery pack and the notebook circuit channel are set between the electrical interface and the battery pack containing the control circuit connected to the electronic control switch 1, and add a physical switch 2 connected to the control circuit of the notebook battery pack that the user can physically control. The on/off of the electronic control switch 1 can be controlled by the on/off of the physical switch 2. It is convenient to choose to connect/disconnect the internal battery pack when entering the notebook. On the other hand, the internal battery pack control circuit of the notebook is equipped with a voltage detection module that directly detects the electrical interface and connects to the external voltage, so that even if it is cut off, once the external power supply is powered off, it will It can automatically switch to the battery pack for power supply.

The preferred embodiment of the utility model has an external structure as shown in Figure 2, and its physical switch 2 control part is exposed on the side after the notebook battery 3 is loaded into the notebook 4, which is convenient for users to use. The physical switch 2 selects a light touch switch.

Finally, within the scope of understanding of those skilled in the art and within the claims of the utility model, various changes belong to the protection scope of the utility model.

Claims (6)

1. A notebook battery (3), comprising a shell with an electrical interface and an electric control switch (1) electrically connected to the electrical interface in turn and a battery pack with a control circuit, it is characterized in that it also includes one end connected to the electrical interface. The control end of the control switch (1) is electrically connected, and the other end is electrically connected to the voltage detection module between the electric control switch (1) and the electrical interface, and the control end of the electric control switch (1) is also electrically connected to the physical switch (2 ). 2. The notebook battery according to claim 1, characterized in that the electronically controlled switch (1) is a field effect transistor. 3 . The notebook battery according to claim 1 , wherein the physical switch ( 2 ) is exposed on the outside of the casing after it is installed in the notebook ( 4 ). 4 . 4. The notebook battery according to claim 3, characterized in that, the physical switch (2) is exposed on the side of the exterior. 5. The notebook battery according to claim 4, characterized in that, the physical switch (1) is a tact switch. 6. The notebook battery according to claim 1, wherein the voltage detection module is built in the control circuit.

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