Automobile electronic device power supply device

Abstract

The application relates to a power supply device for automobile electronic equipment, which comprises a primary battery connected with a direct-current generator of an automobile, a ripple-free battery with an input end connected with the primary battery and an output end connected with the automobile electronic equipment, an electric controller arranged between the primary battery and the ripple-free battery and used for controlling the on-off of a line between the primary battery and the ripple-free battery, and a battery switching manager used for collecting an output amplitude of automobile audio and controlling the state of the electric controller based on the output amplitude. The application can provide clean and effective direct-current power for the automobile electronic equipment.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of automobile power supply, in particular to a kind of automobile electronic equipment power supply device. BACKGROUND

[0002] Automobile audio needs to use direct current to operate, and in electric vehicle, due to the engine driven DC generator will still react a certain frequency, when it is applied to automobile audio, audible noise will be shown. In addition, on vehicle electronic sensor, high-definition camera, there is also a strong demand for stable DC power supply.

[0003] Due to the dynamic progress of vehicle and other conditions, the speed of vehicle is not the same during the progress, therefore the traditional filtering technology cannot effectively filter out the frequency, so that the automobile electronic equipment cannot obtain clean and effective DC power supply. SUMMARY

[0004] The technical problem to be solved by the present application is to provide an automobile electronic equipment power supply device, which can provide clean and effective DC power supply for automobile electronic equipment.

[0005] The technical scheme adopted by the present application to solve the technical problem is: providing an automobile electronic equipment power supply device, comprising:

[0006] A primary battery connected to the DC generator of the automobile;

[0007] A ripple-free battery, the input end of which is connected to the primary battery, and the output end of which is connected to the automobile electronic equipment;

[0008] An electric controller placed between the primary battery and the ripple-free battery, for controlling the on-off of the line between the primary battery and the ripple-free battery;

[0009] A battery switching manager for collecting the output amplitude of the automobile audio, and controlling the state of the electric controller based on the output amplitude.

[0010] When the output amplitude is higher than the preset value, the battery switching manager controls the electric controller to be in the first state so that the line between the primary battery and the ripple-free battery is connected; when the output amplitude is lower than or equal to the preset value, the battery switching manager controls the electric controller to be in the second state so that the line between the primary battery and the ripple-free battery is disconnected.

[0011] The electric controller is a current relay.

[0012] The battery switching manager is also used for monitoring the output voltage and output current of the ripple-free battery, and controlling the state of the electric controller based on the output voltage and output current.

[0013] The technical scheme adopted by the present application to solve its technical problems is: providing an automobile electronic device power supply device, comprising:

[0014] a primary battery connected to a DC generator of the automobile;

[0015] a buffer battery connected to the primary battery;

[0016] a ripple-free battery connected to the buffer battery and connected to the automobile electronic device;

[0017] a first electric controller disposed between the primary battery and the buffer battery and used to control the on-off of the line between the primary battery and the buffer battery;

[0018] a second electric controller disposed between the buffer battery and the ripple-free battery and used to control the on-off of the line between the buffer battery and the ripple-free battery;

[0019] a battery switching manager used to control the states of the first electric controller and the second electric controller according to time sequence, so that the power supply device works in a buffer discharge-ripple-free buffer-buffer charge-ripple-free buffer cycle.

[0020] When the power supply device works in the buffer discharge mode, the battery switching manager controls the first electric controller to be in the second state so that the line between the primary battery and the buffer battery is disconnected, and controls the second electric controller to be in the first state so that the line between the buffer battery and the ripple-free battery is connected.

[0021] When the power supply device works in the ripple-free buffer mode, the battery switching manager controls the first electric controller to be in the second state so that the line between the primary battery and the buffer battery is disconnected, and controls the second electric controller to be in the second state so that the line between the buffer battery and the ripple-free battery is disconnected.

[0022] When the power supply device works in the buffer charge mode, the battery switching manager controls the first electric controller to be in the first state so that the line between the primary battery and the buffer battery is connected, and controls the second electric controller to be in the second state so that the line between the buffer battery and the ripple-free battery is disconnected.

[0023] The first electric controller and the second electric controller are both current relays.

[0024] Advantages

[0025] Compared with the prior art, the present application has the following advantages and positive effects: the present application adds a ripple-free battery and switches the output of the primary battery connected with the DC generator through a battery switching manager, thereby ensuring that the automobile electronic device can obtain clean and effective DC power supply. BRIEF DESCRIPTION OF DRAWINGS

[0026] Figure 1 is a structural schematic diagram of the first embodiment of the present application;

[0027] Figure 2 is a structural schematic diagram of the second embodiment of the present application. DETAILED DESCRIPTION

[0028] The present application will be further described below in conjunction with specific embodiments. It should be understood that these embodiments are only used to illustrate the present application and not used to limit the scope of the present application. In addition, it should be understood that after reading the content taught by the present application, those skilled in the art can make various modifications or changes to the present application, and these equivalent forms also fall within the scope defined by the appended claims of the present application.

[0029] The first embodiment of the present application relates to an automobile electronic device power supply device, as shown in the accompanying drawings, comprising: Figure 1

[0030] a primary battery connected with the DC generator of the automobile;

[0031] a ripple-free battery, the input end of which is connected with the primary battery and the output end of which is connected with the automobile electronic device;

[0032] an electric controller NO arranged between the primary battery and the ripple-free battery and used for controlling the on-off of the line between the primary battery and the ripple-free battery; in the present embodiment, the electric controller NO is realized by a large-current relay;

[0033] a battery switching manager used for collecting the output amplitude of the automobile audio and controlling the state of the electric controller based on the output amplitude.

[0034] Specifically, when the output amplitude is higher than the preset value, since the ripple noise of the generator is masked by the audio at a large volume, the battery switching manager controls the electric controller to be in the first state so as to make the line between the primary battery and the ripple-free battery be in communication, at this time, the automobile electronic device is supplied with power by the ripple-free battery and the primary battery together, at this time, although the ripple current exists in the primary battery, since the audio is in the large-volume working state, the noise caused by the ripple current can be masked, thereby not affecting the sound quality of the audio and meeting the hearing requirement.

[0035] ​When the output amplitude is lower than or equal to the preset value, the sound emitted by the audio is in a low sound bridge or a soundless bridge, which causes the generator ripple noise to be very obvious, and thus the battery switching manager controls the electric controller to be in the second state so as to disconnect the line between the primary battery and the ripple-free battery, and only the ripple-free battery is used to supply power to the automobile electronic equipment, and the primary battery is not used to supply power to the electronic equipment, so the electronic equipment is not affected by the ripple current, thereby ensuring the sound quality of the audio and meeting the hearing requirements.

[0036] The second embodiment of the present application also relates to an automobile electronic equipment power supply device, as shown in the figure, which comprises: Figure 2

[0037] a primary battery connected to the automobile DC generator;

[0038] a buffer battery connected to the primary battery;

[0039] a ripple-free battery connected to the buffer battery and connected to the automobile electronic equipment;

[0040] a first electric controller NO arranged between the primary battery and the buffer battery and used to control the on-off of the line between the primary battery and the buffer battery; the first electric controller NO can be a large-current relay;

[0041] a second electric controller NC arranged between the buffer battery and the ripple-free battery and used to control the on-off of the line between the buffer battery and the ripple-free battery; the second electric controller NC can be a large-current relay;

[0042] a battery switching manager used to control the state of the first electric controller and the second electric controller according to the timing so that the power supply device works in a buffer discharge-ripple-free buffer-buffer charge-ripple-free buffer mode.

[0043] In the embodiment, the battery switching manager switches the working mode of the power supply device through the programmable timing, so that the power supply device works in a buffer discharge-ripple-free buffer-buffer charge-ripple-free buffer mode.

[0044] ​When the power supply device works in the buffer discharge mode, the battery switching manager controls the first electric controller to be in the second state so that the line between the primary battery and the buffer battery is disconnected, and controls the second electric controller to be in the first state so that the line between the buffer battery and the ripple-free battery is connected. At this time, the primary battery is in the charging state, and the buffer battery and the ripple-free battery jointly supply power to the electronic device. Since the line between the primary battery and the buffer battery is disconnected, the ripple current does not affect the electronic device, and thus the electronic device receives ripple-free direct current.

[0045] When the power supply device works in the ripple-avoiding buffer mode, the battery switching manager controls the first electric controller to be in the second state so that the line between the primary battery and the buffer battery is disconnected, and controls the second electric controller to be in the second state so that the line between the buffer battery and the ripple-free battery is disconnected. At this time, the primary battery is in the charging state, and the buffer battery is in the disconnected state, and the ripple-free battery supplies power to the electronic device. Since only the ripple-free battery supplies power to the electronic device at this time, the electronic device receives ripple-free direct current.

[0046] When the power supply device works in the buffer charging mode, the battery switching manager controls the first electric controller to be in the first state so that the line between the primary battery and the buffer battery is connected, and controls the second electric controller to be in the second state so that the line between the buffer battery and the ripple-free battery is disconnected. At this time, the primary battery charges the buffer battery, the line between the buffer battery and the ripple-free battery is disconnected, and the ripple-free battery supplies power to the electronic device. Since only the ripple-free battery supplies power to the electronic device at this time, the electronic device receives ripple-free direct current. Although the buffer battery receives the charge of the primary battery at this time, the battery switching manager will adjust the power supply device to work in the ripple-avoiding buffer mode next, in which mode the energy in the buffer battery is relieved, thereby effectively filtering the ripple current and ensuring that the electronic device receives ripple-free direct current when the power supply device works in the buffer discharge mode.

[0047] The battery switching manager in the embodiment can adjust the working mode duration according to the power demand of the device, the capacity of the buffer battery, and the capacity of the primary ripple-free battery, thereby achieving the best effect.

[0048] It is worth mentioning that the battery switching manager of the above two embodiments can operate in various ways. Since the first-stage battery is designed, the switching charging can be performed in a timed manner. Preferably, the battery switching manager is also used to monitor the output voltage and current of the ripple-free battery. When the output current exceeds the current threshold and the output voltage is lower than the voltage threshold, the battery switching manager controls the electric controller to be in the first state so that the line between the first-stage battery and the ripple-free battery is in communication. At this time, the first-stage battery can charge the ripple-free battery. When the output current does not exceed the current threshold or the output voltage is not lower than the voltage threshold, the battery switching manager controls the electric controller to be in the second state so that the line between the first-stage battery and the ripple-free battery is disconnected. At this time, the ripple-free battery supplies power to the automotive electronic device.

[0049] It can be found that the present application adds a ripple-free battery and switches the output of the first-stage battery connected to the DC generator through the battery switching manager, thereby ensuring that the automotive electronic device can obtain clean and effective DC power.

Claims

1. An automobile electronic device power supply device characterized by comprising: The power supply device comprises: a primary battery connected to a DC generator of the vehicle; a buffer battery connected to the primary battery; a ripple-free battery connected to the buffer battery and to the electronic equipment of the vehicle; a first electric controller arranged between the primary battery and the buffer battery and configured to control the connection between the primary battery and the buffer battery; a second electric controller arranged between the buffer battery and the ripple-free battery and configured to control the connection between the buffer battery and the ripple-free battery; a battery switching manager configured to control the state of the first electric controller and the second electric controller according to a time sequence, so that the power supply device works in a buffer discharge-ripple-free buffer-buffer charge-ripple-free buffer cycle.

2. The apparatus according to claim 1, wherein When the power supply device works in the buffer discharge mode, the battery switching manager controls the first electric controller to be in the second state so as to disconnect the primary battery and the buffer battery, and controls the second electric controller to be in the first state so as to connect the buffer battery and the ripple-free battery.

3. The apparatus according to claim 1, wherein When the power supply device works in the ripple-free buffer mode, the battery switching manager controls the first electric controller to be in the second state so as to disconnect the primary battery and the buffer battery, and controls the second electric controller to be in the second state so as to disconnect the buffer battery and the ripple-free battery.

4. The apparatus according to claim 1, wherein When the power supply device works in the buffer charge mode, the battery switching manager controls the first electric controller to be in the first state so as to connect the primary battery and the buffer battery, and controls the second electric controller to be in the second state so as to disconnect the buffer battery and the ripple-free battery.

5. The apparatus according to claim 1, wherein The first electric controller and the second electric controller are both current relays.

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