WO2024051283A1

WO2024051283A1 - Storage battery system, vehicle-mounted air conditioner, and vehicle

Info

Publication number: WO2024051283A1
Application number: PCT/CN2023/102577
Authority: WO
Inventors: 马福山; 李润杰
Original assignee: 青岛海尔空调器有限总公司; 青岛海尔空调电子有限公司; 海尔智家股份有限公司
Priority date: 2022-09-09
Filing date: 2023-06-27
Publication date: 2024-03-14
Also published as: CN116316936A

Abstract

The present invention relates to the technical field of vehicle accessories, and in particular provides a storage battery system, a vehicle-mounted air conditioner, and a vehicle, aiming at solving the problem that an existing vehicle air conditioner is limited by whether a power supply and fuel are sufficient during use. To achieve this objective, the storage battery system of the present invention comprises a plurality of storage batteries and a storage battery power discharge/storage control system for controlling power discharge/storage of the storage batteries. The storage battery power discharge/storage control system comprises: a detection module that is used for detecting the power level of each storage battery and outputting power level information; and a controller that is connected to the detection module and receives the power level information, the controller controlling power discharge/storage of the storage battery system according to the power level information. The storage battery power discharge/storage control system controls power discharge/storage operation of the storage batteries according to the power level information of the storage batteries, avoids the dangerous situation during power storage that the storage batteries still store power after being fully charged can be avoided, and avoids the situation during discharge that the storage batteries still discharge when the power levels are low, so as to protect the storage batteries, thereby ensuring normal use of vehicle-mounted electric appliances such as the air conditioner.

Description

Battery systems, vehicle air conditioners and vehicles

Technical field

The present invention relates to the technical field of vehicle accessories, and specifically provides a battery system, a vehicle air conditioner and a vehicle.

Background technique

Existing RV air conditioners can only be used when there is a civilian power supply (i.e., the electricity provided by the state, the same below) or the car uses fuel combustion to store electricity. This will have the following problems: 1. When using civilian power supply, it must be stable. The RV air conditioner can only be used when there is a power supply, and the RV air conditioner needs to change locations at any time (traveling, outings, etc.) according to the user's wishes. When it is in the wild and there is no civilian power supply, it can only use the high-power storage battery prepared in advance. Both time and safety are limited; 2. When using the car's own fuel to generate air conditioners, it must be ensured that the vehicle is started and the fuel is sufficient to achieve this. The noise when starting the vehicle when used in the wild at night will also affect the rest of the vehicle users and reduce their living comfort.

Accordingly, there is a need in this field for a new RV air conditioner to solve the above problems.

Contents of the invention

The present invention aims to solve the above technical problems, that is, to solve the problem that the use of existing vehicle air conditioners is limited by whether the power supply and fuel are sufficient.

In a first aspect, the present invention provides a battery system. The battery system includes a plurality of batteries and a battery discharge and storage control system for controlling the battery discharge and storage. It is characterized in that the battery discharge and storage control system The system includes:

A detection module used to detect the power of each battery and output power information;

A controller is connected to the detection module and receives the power information. The controller controls the discharge and storage of the battery system according to the power information.

Through the above technical solution, the battery discharge and storage control system is used to detect the power information of each battery in real time, and control the discharge and storage of the battery based on the battery power information. When storing electricity, avoid the dangerous situation that the battery is still storing electricity after it is fully charged. When discharging, avoid the situation that the battery is still discharging when the battery is too low to protect the battery.

In the preferred technical solution of the above-mentioned battery pack, the batteries in the battery system are numbered respectively, and the controller controls the batteries to discharge and store electricity in the order of numbers according to the power information.

Through the above technical solution, the detection module detects the power of each battery in real time, and the controller controls the discharge and storage of each battery according to the power information of each battery. The controller controls the discharge and storage of each battery in sequence according to the number, which is helpful to simplify the control logic.

In the preferred technical solution of the above-mentioned battery pack, when the battery system is storing electricity, the controller compares the power information with the power upper limit protection threshold. When the power information is not less than the power upper limit protection threshold, , the battery discharge and storage controller controls this battery to stop storing electricity, and controls the next battery to start storing electricity in sequence until all batteries are fully charged, and then stops the battery system from storing electricity.

In the preferred technical solution of the above battery pack, the controller controls the battery that is being discharged not to store electricity.

Through the above technical solution, the battery can be prevented from discharging and storing electricity, the battery can be protected, and the possibility of battery failure can be reduced.

In the preferred technical solution of the above battery pack, when the battery is discharging, the controller compares the power information with the minimum power protection threshold. When the power information is lower than the minimum power protection threshold, The controller controls this battery to stop discharging, and controls the next battery to start discharging in sequence. If the power information of the last battery is lower than the minimum power protection threshold, the controller controls the first battery that is fully charged. The battery begins to discharge.

Through the above technical solution, when the power information of the last battery is lower than the minimum power protection threshold, the controller controls the first full battery to continue discharging, and the batteries with a smaller number than the first full battery will not be discharged. , thereby preventing the battery from discharging while storing electricity and further protecting the battery.

In a second aspect, the present invention provides a vehicle air conditioner, including the battery system according to any one of claims 1 to 5, an air conditioning mechanism, a control mechanism for controlling the working state of the air conditioning mechanism, and a power supply for supplying power to the battery system. power generation module, the battery system supplies The control mechanism and the air-conditioning mechanism provide power. The power generation module includes a power generation mechanism for generating power and supplying power to the battery system, a power generation induction switch that controls whether the power generation mechanism generates power, and a power storage switch that controls whether the battery system stores power. Inductive switch, the battery discharge and storage control system sends the battery power information to the control mechanism in real time.

In the preferred technical solution of the above-mentioned vehicle air conditioner, when the power of all batteries in the battery system is lower than the minimum power protection threshold, the control mechanism automatically detects the power generation module and the battery system and reports a power shortage fault. If the air conditioning mechanism is working, the control mechanism controls the air conditioning mechanism to close after a period of time; at the same time, the control mechanism sends a power shortage signal to the power generation module, the power generation induction switch opens, and the power generation module starts Power is supplied to the battery system until the battery system is fully charged.

Through the above technical solution, when the power of all batteries in the battery system is less than the minimum power protection threshold, the control mechanism can perform self-checks and display corresponding fault information to facilitate users and maintenance personnel. At the same time, the control mechanism controls the air conditioning mechanism. Stop working, reduce the power consumption of the battery, and control the power generation module to supply power to the battery to prevent the battery power from falling below the minimum power protection threshold for a long time.

In the preferred technical solution of the above-mentioned vehicle air conditioner, the control mechanism includes a first detection component for detecting whether the power generation mechanism is working normally, a second detection component for detecting whether the storage induction switch is working normally, and a control unit. The control component for the operation of the air conditioning mechanism. The battery discharge and storage control system sends the battery power information to the control component in real time. When the power generation mechanism fails, the first detection component sends a signal to the control component. The component sends a fault signal of the power generation mechanism, and/or when the storage induction switch fails, the second detection component sends a fault signal of the storage induction switch to the control component; when the power of the storage battery system meets the When the air conditioning mechanism is required to operate, the air conditioning mechanism operates normally.

In the preferred technical solution of the above vehicle air conditioner, the control mechanism includes a third detection component for detecting whether the battery system is working normally. When the battery fails, the third detection component reports to the control component Send a battery system fault signal; if the battery system cannot complete power storage, the air conditioning mechanism will operate normally until the battery system is exhausted; if the battery system cannot be discharged, the air conditioning mechanism will not be started or the operation will be controlled The air conditioning unit in the unit shuts down immediately.

In a third aspect, the present invention provides a vehicle including the vehicle air conditioner according to any one of claims 6 to 9.

When the above technical solution is adopted, the present invention has the following beneficial effects:

The battery discharge and storage control system controls the battery discharge and storage according to the battery number, preventing the battery from discharging and storing electricity at the same time, and reducing the possibility of battery damage.

When the power of all batteries in the battery system is lower than the minimum power protection threshold, the control mechanism automatically detects whether the discharge module and battery system are faulty, and at the same time, the control mechanism controls the air conditioning mechanism.

The battery system and the control mechanism cooperate with each other. The battery discharge and storage control system controls the automatic discharge and storage of the battery. The control mechanism detects whether the power generation mechanism, the storage induction switch and the battery system are functioning properly through the first detection component, the second detection component and the third detection component. If there is a fault, the control mechanism will control the operation of the air conditioning mechanism. The control mechanism and the battery discharge and storage control system can work together more intelligently.

Description of the drawings

The preferred embodiments of the present invention will be described below in conjunction with the accompanying drawings, in which:

Figure 1 is a schematic structural diagram of the battery system provided by the present invention;

Figure 2 is a schematic diagram of the control logic of the battery system provided by the present invention;

Figure 3 is a schematic structural diagram of the vehicle air conditioner provided by the present invention;

Figure 4 is a schematic diagram of the control logic flow when the battery power in the vehicle air conditioner provided by the present invention is abnormal.

Detailed ways

Preferred embodiments of the present invention will be described below with reference to the accompanying drawings. Those skilled in the art should understand that these embodiments are only used to explain the technical principles of the present invention and are not intended to limit the scope of the present invention. Those skilled in the art can make adjustments as needed to adapt to specific application situations.

It should be noted that in the description of the present invention, the terms "on", "inner", etc. indicating the direction or positional relationship are based on the direction or positional relationship shown in the drawings. This is only for convenience of description, not Indicate or imply that the device or component must have a specific Orientation, construction and operation in a specific orientation and therefore should not be construed as limiting the invention. Furthermore, the terms “first”, “second” and “third” are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In addition, it should be noted that in the description of the present invention, unless otherwise clearly stated and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense. For example, it can be a fixed connection or a fixed connection. It is a detachable connection or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be an internal connection between two components. For those skilled in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

In the first aspect, referring to FIGS. 1 to 2 , the present invention provides a battery system. The battery system is provided with multiple batteries, and the number of batteries does not exceed 20. The battery pack includes a battery discharge and storage control system for controlling battery discharge and storage. The battery discharge and storage control system is used to detect the power of each battery and control the battery's discharge and storage based on the battery power.

In this embodiment, the number of batteries is 10 as an example for detailed description. The 10 batteries are numbered from 1 to 10. The battery discharge and storage control system includes a detection module for real-time detection of battery power and a controller for controlling battery discharge and storage. The detection module includes a power sensor for detecting power storage information. The power sensor sends the detected power information of the battery to the controller. The controller controls the battery to discharge and store electricity in a numbered sequence based on the power information.

When battery No. 1 is charging, the controller compares the power information with the upper power protection threshold. When the power information is not less than the upper power protection threshold (95% power), the battery discharges and the controller controls battery No. 1 to stop charging. , and control the No. 2 battery to start charging according to the sequence until all batteries are fully charged according to the sequence number, and then stop the battery system from charging. The controller controls the discharging battery not to store electricity.

When battery No. 1 is discharging, the controller compares the power information with the minimum power protection threshold (5% power). When the power information is lower than the minimum power protection threshold, the controller controls battery No. 1 to stop discharging and follow the sequence Control the No. 2 battery to start discharging. If the power information of the 10th battery is lower than the minimum power protection threshold, the controller controls the first fully charged battery to start discharging. The first fully charged battery is not necessarily the No. 1 battery. It can be a battery of any number, as long as the first battery is fully charged Just use an electric battery. When discharging the battery, use it in the order of number and cannot use it in reverse order.

It should be noted that the values of the minimum power protection threshold and the value of the upper power protection threshold are only illustrative, not restrictive, and those skilled in the art can adjust the values. At the same time, the minimum power protection threshold and the upper power protection threshold can be stored in the controller or in other components, and the controller can call them at any time.

The battery discharge and storage control system detects the power information of each battery in real time through the power sensor, and transmits the power information to the controller. The controller controls the discharge and storage work of the battery based on the battery power information, and avoids the battery being charged during storage. There is a dangerous situation that the battery is still being discharged after being fully charged. When discharging, avoid the situation where the battery is still being discharged when the battery is too low to protect the battery. It should be noted that the use of a power sensor to detect the power information of the battery is illustrative rather than restrictive. Those skilled in the art can use other methods to detect the power of the battery, such as collecting battery discharge or charging time to estimate the battery. of power.

In the second aspect, with reference to Figures 3 to 4, the present invention provides a vehicle air conditioner, which includes the above-mentioned battery system, an air conditioning mechanism, a control mechanism for controlling the working state of the air conditioning mechanism, and a power generation module that supplies energy to the battery pack. The battery pack supplies power to the control unit. The power generation module includes a power generation mechanism for generating electricity and supplying power to the battery pack, a power generation induction switch that controls whether the power generation mechanism generates electricity, and a storage induction switch that controls whether the battery pack stores electricity. The storage induction switch is arranged between the power generating mechanism and the battery pack.

When the battery discharge and storage control system detects that the battery power in the battery has dropped to 5%, the battery discharge and storage control system sends a storage signal to the power generation sensor switch and the power storage sensor switch. At this time, the power generation sensor switch opens, and the power generation mechanism Start generating electricity, and at the same time, the storage induction switch is also turned on, and the power generation mechanism starts to supply power to the corresponding storage battery.

The control mechanism includes a first detection component for detecting whether the power generation mechanism is working normally, a second detection component for detecting whether the storage induction switch is working normally, a third detection component for detecting whether the battery pack is working normally, and controlling the air conditioner. The control component of the organization's work. The controller in the battery discharge and storage control system sends battery power information to the control component in real time. When the power of all batteries in the battery pack is lower than the minimum power protection threshold, the control component controls the first detection component to detect whether the power generation mechanism is functioning normally. The second detection component detects whether the storage induction switch is working normally, and the third detection component detects whether the battery pack is working normally, and at the same time, the control component reports a power shortage fault.

If the air conditioning mechanism is running, the control component controls the air conditioning mechanism to turn off after a period of time (1 minute). The length of this time period is only illustrative, and those skilled in the art can adjust the length of this time period. The control mechanism sends a power shortage signal to the power generation module, the power generation induction switch responds to the deficiency signal and opens, and the power generation mechanism starts to generate electricity and supply power to the battery pack until the battery pack is fully charged.

The first detection component includes a voltage sensor for detecting the voltage of the power generation mechanism. If the power generation mechanism fails, the voltage sensor will detect abnormal voltage of the power generation mechanism, and the voltage sensor sends a power generation mechanism failure signal to the control component. The second detection component includes a current sensor for detecting whether there is current in the line where the storage induction switch is located. When the storage induction switch fails, the current sensor cannot detect the current and sends a storage induction switch failure signal to the control component; when the storage battery When the power of the group meets the operating requirements of the air conditioning mechanism, the air conditioning mechanism works normally.

In a preferred embodiment, when the power generation mechanism fails, the first detection component sends a power generation mechanism failure signal to the control component, or when the storage induction switch fails, the second detection component sends a storage induction switch failure signal to the control component; When the power of the battery pack meets the operating requirements of the air conditioning mechanism, the air conditioning mechanism operates normally.

The third detection component includes a power sensor for detecting the battery power. When the battery fails to store or discharge, the power sensor detects that the battery power does not change and sends a battery pack failure signal to the control component; if the battery pack cannot complete the If the battery pack cannot be discharged, the air conditioning unit cannot be started or the running air conditioning unit will shut down immediately.

It should be noted that the structures and working modes of the above-mentioned first detection component, second detection component and third detection component are only illustrative and not restrictive. Those skilled in the art can use the technology provided by this embodiment to Inspiration to choose other ways of working.

When the power of all batteries is abnormal, the control mechanism reports a power shortage fault, controls the power generation mechanism to supply power to the batteries, and starts self-checking. The control mechanism uses the first detection component, the second detection component and the third detection component to detect whether the power generation mechanism, the storage dry tone switch and the storage battery are faulty, and reports a corresponding fault signal according to the detection structure. If the legal institution or the storage induction switch fails and the battery power is sufficient to maintain the operation of the air conditioning mechanism, the air conditioning mechanism will continue to work until the battery power is exhausted. If the battery fails and cannot store electricity, the air conditioner will continue to work until the battery is exhausted. If the battery cannot be discharged, the air conditioner will The organization immediately shut down and stopped operating.

The control mechanism and the battery discharge and storage control system cooperate with each other to control the operating status of the vehicle air conditioner more intelligently. The battery discharge and storage control system can monitor the power of each battery in real time, and control the battery storage or discharge according to the battery power and the battery number sequence, which can realize the orderly operation of the battery and improve the intelligent operation of the battery system. The control mechanism can perform self-checks and report corresponding fault signals when the battery power is low to facilitate maintenance by users and maintenance personnel. At the same time, it can control the operation of the air conditioning mechanism based on the power of the battery system.

In a third aspect, the present invention provides a recreational vehicle, which includes the above-mentioned vehicle air conditioner, and the power generation mechanism of the air conditioner is arranged on the roof of the vehicle. The power generation mechanism uses solar power to supply power to the battery pack. The power generation mechanism is a solar generator set installed on the surface of the RV. Solar generators use solar energy to generate electricity. The solar generator set is connected to the battery through a storage induction switch, and the storage induction switch can control whether each battery is storing electricity. There is a power generation induction switch on the solar generator set. If the battery power is less than 5%, the power generation induction switch is turned on, and at the same time the storage induction switch is turned on, and the solar generator set supplies power to the battery that is short of power.

When the user travels in an RV, the battery system does not need to first use the fuel of the RV to generate electricity, nor does it need to first use civilian power or backup power to charge. It can use the sun in the wild to generate electricity, so that the use time of the RV air conditioner is freed from the need to worry about the RV fuel. and reliance on backup power.

In a preferred embodiment, the power generation mechanism adopts the method of wind power generation. The power generation mechanism is a wind turbine set installed outside the RV, and uses the airflow generated during the driving of the RV and the natural wind generated outside the vehicle when the vehicle is stopped to generate electricity.

So far, the technical solution of the present invention has been described with reference to the preferred embodiments shown in the drawings. However, those skilled in the art can easily understand that the protection scope of the present invention is obviously not limited to these specific embodiments. Without departing from the principles of the present invention, those skilled in the art can make equivalent changes or substitutions to relevant technical features, and technical solutions after these modifications or substitutions will fall within the protection scope of the present invention.

Claims

A battery system, the battery system includes a plurality of batteries and a battery discharge and storage control system for controlling the battery discharge and storage, characterized in that the battery discharge and storage control system includes:

A detection module used to detect the power of each battery and output power information;

A controller is connected to the detection module and receives the power information. The controller controls the discharge and storage of the battery system according to the power information.
The battery system according to claim 1, wherein the batteries in the battery system are numbered respectively, and the controller controls the batteries to discharge and store electricity according to the numbering sequence according to the power information.
The battery system according to claim 2, wherein when the battery system is storing electricity, the controller compares the electric quantity information with the electric quantity upper limit protection threshold, and when the electric quantity information is not less than the electric quantity When the upper limit protection threshold is reached, the battery discharge and storage controller controls this battery to stop storing electricity, and controls the next battery to start storing electricity in sequence until all batteries are fully charged, and then stops the battery system from storing electricity.
The battery system according to claim 3, wherein the controller controls the battery that is being discharged not to store electricity.
The battery system according to claim 2, wherein when the battery is discharging, the controller compares the power information with a minimum power protection threshold. When the power information is lower than the minimum power protection threshold, When the protection threshold is reached, the controller controls this battery to stop discharging, and controls the next battery to start discharging in sequence. If the power information of the last battery is lower than the minimum power protection threshold, the controller controls the first battery to start discharging. A fully charged battery begins to discharge.
A vehicle-mounted air conditioner, characterized by comprising the battery system according to any one of claims 1 to 5, an air conditioning mechanism, a control mechanism for controlling the working state of the air conditioning mechanism, and a power generation module that supplies power to the battery system, so The battery system supplies power to the control mechanism and the air-conditioning mechanism. The power generation module includes a power generation mechanism for generating power and supplying power to the battery system, a power generation sensor switch that controls whether the power generation mechanism generates power, and a power generation sensor switch that controls whether the battery system generates power. The battery induction switch for storing electricity, the battery discharge and storage control system sends a signal to the The control mechanism sends the battery power information in real time.
The vehicle air conditioner according to claim 6, characterized in that when the power of all batteries in the battery system is lower than the minimum power protection threshold, the control mechanism automatically detects the power generation module and the battery system and reports In the event of a power shortage fault, if the air conditioning mechanism is working, the control mechanism controls the air conditioning mechanism to close after a period of time; at the same time, the control mechanism sends a power shortage signal to the power generation module, and the power generation induction switch is turned on, so The power generation module starts to supply power to the battery system until the battery system is fully charged.
The vehicle air conditioner according to claim 7, wherein the control mechanism includes a first detection component for detecting whether the power generation mechanism is working normally, and a second detection component for detecting whether the storage induction switch is working normally. A detection component and a control component that controls the operation of the air conditioning mechanism. The battery discharge and storage control system sends the battery power information to the control component in real time. When the power generation mechanism fails, the first detection component Send a power generation mechanism fault signal to the control component, and/or when the storage induction switch fails, the second detection component sends a storage induction switch failure signal to the control component; in the battery system When the electric power meets the operating requirements of the air conditioning mechanism, the air conditioning mechanism operates normally.
The vehicle air conditioner according to claim 8, characterized in that the control mechanism includes a third detection component for detecting whether the battery system is working normally, and when the battery fails, the third detection component The control component sends a battery system fault signal; if the battery system cannot complete power storage, the air conditioning mechanism operates normally until the battery system is exhausted; if the battery system cannot be discharged, the air conditioner is not started. Mechanism or control operation of the air conditioning mechanism shut down immediately.
A vehicle, characterized by including the vehicle air conditioner according to any one of claims 6 to 9.