Automobile storage battery wireless charging device, system and method

Abstract

The application discloses a kind of automobile battery wireless charging device, system and method, belong to automobile technical field, including charging battery, control switch, charging module, automobile cigarette lighter plug and automobile battery;Charging battery is placed in the battery placement area that is set below center console;Charging battery is connected with automobile cigarette lighter plug by charging module, and automobile cigarette lighter plug is connected with automobile battery;Charging module is connected with control switch;Control switch is used to control the on-off of charging module;Charging module is used to only when being connected, automobile battery can be powered by charging battery, or charging battery can be powered by automobile battery.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of vehicles, in particular to a wireless charging device, system and method for automobile storage battery. BACKGROUND

[0002] With the continuous development of society, automobiles have become an indispensable means of transportation in people's daily life, and the comfort of automobiles has also attracted more and more attention from users. Most of the automobile storage batteries on the market today use 12V lead-acid storage batteries. Because of the characteristics of lead-acid storage batteries, long-term parking will cause the vehicle to be unable to start due to lack of power, so an emergency charger (power booster) for automobile storage battery is needed to charge.

[0003] The emergency charger (power booster) in the related art connects with the automobile storage battery in a wired manner, and when the emergency charger is connected with the automobile storage battery, it automatically starts charging the automobile storage battery.

[0004] This charging method requires that the emergency charger be disconnected from the automobile storage battery when the automobile storage battery does not need to be charged, and because the emergency charger is connected with the automobile storage battery in a wired manner, more space is occupied when they are disconnected, which is not conducive to the carrying and placement of the emergency charger. SUMMARY

[0005] The present application provides a wireless charging device, system and method for automobile storage battery, which can solve the problem of large space occupation and poor placement of the emergency charger for charging the automobile storage battery in the related art.

[0006] The technical solution is as follows:

[0007] On the one hand, a wireless charging device for automobile storage battery is provided, which comprises a charging battery, a control switch, a charging module, an automobile cigarette lighter plug and an automobile storage battery.

[0008] The charging battery is placed in a battery placement area arranged below the center console.

[0009] The charging battery is connected with the automobile cigarette lighter plug through the charging module, and the automobile cigarette lighter plug is connected with the automobile storage battery.

[0010] The charging module is connected with the control switch.

[0011] The control switch is used to control the on-off of the charging module.

[0012] The charging module is used to supply power to the automobile storage battery from the charging battery or supply power to the charging battery from the automobile storage battery only when it is turned on.

[0013] In some embodiments, the charging module comprises a control module and a bidirectional charging circuit; the control module is connected with the control switch; two ends of the bidirectional charging circuit are connected with the charging battery and the automobile lighter plug respectively;

[0014] The control module is configured to control the bidirectional charging circuit to be turned on when receiving an opening signal of the control switch, and control the bidirectional charging circuit to be turned off when receiving a closing signal of the control switch.

[0015] In some embodiments, the bidirectional charging circuit comprises a first wireless charging and discharging module, a second wireless charging and discharging module, and an inverter; the first wireless charging and discharging module is connected with the charging battery, the second wireless charging and discharging module and the inverter are connected, and the inverter is connected with the automobile lighter plug; the first wireless charging and discharging module and the second wireless charging and discharging module are connected.

[0016] In some embodiments, a charging and discharging switching key is further included; the charging and discharging switching key is configured to control the connection direction of the bidirectional charging circuit.

[0017] In some embodiments, a battery placement area is arranged below the center console, and the charging battery, the first wireless charging and discharging module, and the second wireless charging and discharging module are all placed in the battery placement area.

[0018] In some embodiments, a display module and a power acquisition module are further arranged on the charging battery.

[0019] The power acquisition module is configured to acquire the power of the charging battery.

[0020] The display module is configured to display the power of the charging battery.

[0021] In some embodiments, the control module and the control switch are both arranged on the charging battery.

[0022] On the other hand, an automobile storage battery wireless charging system is provided, comprising an automobile storage battery wireless charging device.

[0023] On the other hand, a charging method of an automobile storage battery wireless charging device is provided, comprising:

[0024] The control switch is turned on, the charging module is turned on, the automobile storage battery is charged by the charging battery, or the charging battery is powered by the automobile storage battery;

[0025] The control switch is turned off, the charging module is turned off, the charging of the automobile storage battery by the charging battery is stopped, and the power supply of the charging battery by the automobile storage battery is stopped.

[0026] In some embodiments, when the control switch is turned on, when the charging and discharging switching key is located at the storage battery charging position, the automobile storage battery is charged by the charging battery.

[0027] When the control switch is turned on, when the charge-discharge switch is in the battery discharge position, the automobile battery charges the charging battery.

[0028] The technical scheme provided by the application has at least the following beneficial effects:

[0029] The automobile battery wireless charging device provided by the application places the charging battery in the battery placement area arranged below the center console, connects the charging battery with the automobile lighter plug through the charging module, connects the charging module with the automobile battery through the automobile lighter plug, and controls the on-off of the charging module through the control switch, so that the charging battery can be placed in the battery placement area whether it is in the state of charging the automobile battery or not, which facilitates the carrying and use of the charging battery. In addition, the charging module adopts a wireless charging module, which further saves space. The automobile battery wireless charging device provided by the application can not only charge the automobile battery through the charging battery, but also can perform reverse charging on the charging battery through the automobile battery, so as to ensure that the charging battery has sufficient power for normal use next time. BRIEF DESCRIPTION OF DRAWINGS

[0030] In order to more clearly illustrate the technical scheme in the embodiments of the application, the drawings needed in the embodiment description will be briefly introduced. Obviously, the drawings in the following description are only some embodiments of the application, and other drawings can be obtained by those skilled in the art without creative labor.

[0031] Figure 1 is a whole structure schematic diagram of an automobile battery wireless charging device provided by an embodiment of the application;

[0032] Figure 2 is a principle schematic diagram of an automobile battery wireless charging device provided by an embodiment of the application for charging the automobile battery;

[0033] Figure 3 is a principle schematic diagram of an automobile battery wireless charging device provided by an embodiment of the application for charging the charging battery.

[0034] Among them: 1, display module, 2, control switch, 3, brand, 4, connecting line, 5, first charge-discharge switch, 6, first contact area, 7, second contact area, 8, second charge-discharge switch, 9, connecting line, 10, inverter, 11, automobile lighter plug. DETAILED DESCRIPTION

[0035] The exemplary embodiments will be described in detail below with reference to the accompanying drawings. In the following description, the same numbers refer to the same elements throughout the drawings. The implementation described in the following exemplary embodiments does not represent all implementations consistent with the present application. Instead, they only represent examples of apparatuses and methods consistent with some aspects of the present application, as detailed in the appended claims.

[0036] It should be understood that, in the present application, "connection" can be understood as physical contact and electrical conduction of components; it can also be understood as a form of connection between different components through a physical circuit board (PCB) copper foil or wire that can transmit electrical signals, and it can also be understood as a mechanical or physical connection relationship. Wireless communication connection does not require a physical medium and is not a connection relationship that defines the product structure.

[0037] Unless otherwise defined, all technical terms used in the embodiments of the present application have the same meanings as commonly understood by one of ordinary skill in the art.

[0038] The development of automotive batteries can be traced back to the early 19th century. The first automotive battery was invented by French chemist Gaston Plante. With the development of the automotive industry, automotive batteries have been continuously improved and upgraded.

[0039] In the early 20th century, lead-acid batteries became the main power source for automobiles. This battery uses lead and lead oxide as electrodes and sulfuric acid as electrolyte. The advantages of lead-acid batteries are stable voltage, large output current, and low cost. However, its disadvantages are low energy, severe self-discharge, and short service life.

[0040] In the mid-20th century, with the increasing electrification of automobiles, automotive batteries began to develop towards higher specific energy and lighter weight. At this time, new types of batteries such as nickel-hydrogen batteries and lithium-ion batteries began to enter the market. These new types of batteries have the advantages of high specific energy, low self-discharge, long service life, etc., but the cost is relatively high.

[0041] Therefore, most of the automotive batteries on the market today are 12V lead-acid batteries. Due to the characteristics of lead-acid batteries, long-term parking will cause the vehicle to be unable to start due to lack of power, so it is necessary to use an emergency charger (power bank) for automotive batteries.

[0042] Automobile battery emergency charger, also known as "car emergency starting power supply". It appears to solve the problem of vehicle unable to start, which is usually caused by battery aging or power failure. The normal service life of the battery of the car is about 3 years, but it will be different due to the use of the vehicle. When the owner causes the battery to be out of power and unable to start due to some bad driving habits, the emergency charger can play a role. If you are in the wild or have an emergency to rush, but the car suddenly cannot start, the emergency charger can help you solve the problem quickly. But the commonly used emergency charger (power-on treasure) has the disadvantages of inconvenient to carry and use, and safety hazards.

[0043] In order to solve the problems in the related art, the present application provides a kind of automobile battery wireless charging device, system and method, can solve the problem of large space occupied by emergency charger for automobile battery charging in related art, not conducive to the placement of emergency charger.

[0044] In order to make the purpose, technical scheme and advantages of the present application clearer, the embodiments of the present application will be described in detail below with reference to the drawings.

[0045] On the one hand, in combination with Figure 1 、 Figure 2 and Figure 3 , the present embodiment provides a kind of automobile battery wireless charging device, including charging battery, control switch 2, charging module, automobile cigarette lighter plug 11 and automobile battery;

[0046] Charging battery is placed in the battery placement area arranged below the center console;

[0047] Charging battery is connected with automobile cigarette lighter plug 11 through charging module, and automobile cigarette lighter plug 11 is connected with automobile battery;

[0048] Charging module is connected with control switch 2;

[0049] Control switch 2 is used to control the on-off of charging module;

[0050] Charging module is used to supply power to automobile battery by charging battery or supply power to charging battery by automobile battery only when it is turned on.

[0051] The charging battery of the present application is a battery pack composed of multiple single batteries in series. The charging battery is placed in the battery placement area arranged below the center console. The battery placement area is located near the cigarette lighter below the center console, so that the charging battery and the automobile battery can be connected using the automobile cigarette lighter, and the layout space can be saved.

[0052] The charging module comprises a control module and a bidirectional charging circuit; the control module is connected with the control switch 2; the two ends of the bidirectional charging circuit are respectively connected with the charging battery and the automobile cigarette lighter plug 11.

[0053] The control module is used for controlling the bidirectional charging circuit to be connected when receiving the opening signal of the control switch, and controlling the bidirectional charging circuit to be disconnected when receiving the closing signal of the control switch.

[0054] The control switch 2 and the control module are arranged on the charging battery, so that the personnel can control the control switch 2.

[0055] The bidirectional charging circuit can charge the automobile storage battery by the charging battery, and can charge the charging battery by the automobile storage battery,

[0056] Specifically, the bidirectional charging circuit comprises a first wireless charging and discharging module, a second wireless charging and discharging module and an inverter 10; the first wireless charging and discharging module is connected with the charging battery, the second wireless charging and discharging module and the inverter 10 are connected, the inverter 10 is connected with the automobile cigarette lighter plug 11; the first wireless charging and discharging module and the second wireless charging and discharging module are connected.

[0057] The first wireless charging and discharging module and the second wireless charging and discharging module each comprise a driving module, a receiving coil, a transmitting coil and a current conversion module; the driving module is used for driving the current of the transmitting coil, so that the transmitting coil generates an alternating magnetic field, and converts electric energy into magnetic field energy; the receiving coil is used for inducting the magnetic field nearby, and thus generates an induced current; the current conversion module is used for converting the induced current generated by the receiving coil into a direct current for output.

[0058] When the transmitting coil of the first wireless charging and discharging module has current passing through, the transmitting coil of the second wireless charging and discharging module is controlled to have no current passing through; when the transmitting coil of the second wireless charging and discharging module has current passing through, the transmitting coil of the first wireless charging and discharging module is controlled to have no current passing through; that is, when the first wireless charging and discharging module generates magnetic field energy, the second wireless charging and discharging module only inductes the magnetic field energy generated by the first wireless charging and discharging module to generate an induced current, and converts the induced current into a direct current for output, so as to supply power to the automobile storage battery by the charging battery; when the second wireless charging and discharging module generates magnetic field energy, the first wireless charging and discharging module only inductes the magnetic field energy generated by the second wireless charging and discharging module to generate an induced current, and converts the induced current into a direct current for output, so as to supply power to the charging battery by the automobile storage battery.

[0059] In order to realize the conversion of the connection direction of the bidirectional charging circuit, the application further comprises a charging and discharging switching key; the charging and discharging switching key is used for controlling the connection direction of the bidirectional charging circuit.

[0060] The charging and discharging switch key comprises a first charging and discharging switch key 5 and a second charging and discharging switch key 8, the first charging and discharging switch key 5 is connected with the first wireless charging and discharging module, and the first charging and discharging switch key 5 is used for controlling the on-off of the current of the transmitting coil in the first wireless charging and discharging module; the second charging and discharging switch key 8 is connected with the second wireless charging and discharging module, and the second charging and discharging switch key 8 is used for controlling the on-off of the current of the transmitting coil in the second wireless charging and discharging module. By controlling the first charging and discharging switch key 5 and the second charging and discharging switch key 8, the on-off direction of the bidirectional charging circuit is converted, so that the charging battery is controlled to charge the automobile storage battery or the automobile storage battery is controlled to charge the charging battery.

[0061] As shown in Figure 2 When the control switch is turned on and the circuit for charging the automobile storage battery by the charging battery is turned on, the charging battery provides the current for the transmitting coil in the first wireless charging and discharging module, the transmitting coil generates the magnetic field energy, the second wireless charging and discharging module induces the magnetic field energy to generate the induced current, and the induced current is converted into the direct current and output to the automobile lighter plug, and then is input to the automobile storage battery through the inverter, so that the charging battery is realized to supply power to the automobile storage battery.

[0062] As shown in Figure 3 The automobile lighter plug of the application defaults to the discharging output; when the control switch is turned on and the circuit for charging the charging battery by the automobile storage battery is turned on, the inverter does not work, the automobile storage battery provides the current for the transmitting coil in the second wireless charging and discharging module through the automobile lighter plug, the transmitting coil generates the magnetic field energy, the first wireless charging and discharging module induces the magnetic field energy to generate the induced current, and the induced current is converted into the direct current and output to the charging battery, so that the automobile storage battery is realized to supply power to the charging battery.

[0063] In order to accurately obtain the magnetic field energy, the first contact area 6 is arranged on the first wireless charging and discharging module, and the second contact area 7 is arranged on the second wireless charging and discharging module; and the first contact area 6 and the second contact area 7 are in contact connection.

[0064] In order to save space, the battery placing area is arranged below the center console, and the charging battery, the first wireless charging and discharging module and the second wireless charging and discharging module are all placed in the battery placing area.

[0065] The charging battery of the embodiment further comprises a display module 1 and a power acquisition module;

[0066] The power acquisition module is used for acquiring the power of the charging battery.

[0067] The display module 1 is used for displaying the power of the charging battery.

[0068] Through the setting of the electric quantity acquisition module and the display module 1, the monitoring of the electric quantity of the charging battery is realized, so that the charging battery can be charged in time, the electric quantity in the charging battery is ensured to be sufficient, and the subsequent use is prepared.

[0069] The charging battery of the application is further provided with a brand 3 for indicating the charging battery.

[0070] The second charging and discharging module of the application is connected with the automobile lighter plug 11 through a connecting line, and the two electrodes of the automobile lighter plug 11 are connected with the automobile storage battery. When the automobile storage battery cannot start the automobile due to insufficient electric quantity, the control switch of the device provided by the application is opened, and the charging module is connected in the charging direction of the storage battery, so that the automobile storage battery is charged by the charging battery. When the charging battery in the device provided by the application is discharged or the electric quantity is insufficient, the control switch can be opened in the normal running state of the automobile, and the charging module is connected in the charging direction of the charging battery, so that the charging battery is powered by the automobile storage battery. Whether the charging battery is charged or discharged, it can be placed in the battery placement area, so as to facilitate the placement of the charging battery.

[0071] On the other hand, the embodiment provides a wireless charging system for automobile storage battery, which comprises the wireless charging device for automobile storage battery.

[0072] On the other hand, the embodiment provides a charging method of the wireless charging device for automobile storage battery, which comprises:

[0073] The control switch is opened, the charging module is connected, the automobile storage battery is charged by the charging battery, or the charging battery is powered by the automobile storage battery;

[0074] The control switch is turned off, the charging module is disconnected, the charging of the automobile storage battery by the charging battery is stopped, and the power supply of the charging battery by the automobile storage battery is stopped.

[0075] In some embodiments, when the control switch is opened, when the charging and discharging switch is located at the storage battery charging position, the automobile storage battery is charged by the charging battery;

[0076] When the control switch is opened, when the charging and discharging switch is located at the storage battery discharging position, the charging battery is charged by the automobile storage battery.

[0077] Although the specific embodiments of the application are described above with reference to the drawings, the description is not a limitation on the scope of protection of the application, and those skilled in the art should understand that various modifications or changes made by those skilled in the art on the basis of the technical solutions of the application without creative labor are still within the scope of protection of the application.

Claims

1. A wireless charging device for automotive batteries, characterized in that, Includes rechargeable battery, control switch, charging module, car cigarette lighter plug, car battery and charge / discharge switch; The rechargeable battery is placed in the battery storage area located below the center console; The rechargeable battery is connected to the car cigarette lighter plug via a charging module, and the car cigarette lighter plug is connected to the car battery. The charging module is connected to the control switch; Control switch, used to control the on / off state of the charging module; A charging module is used to ensure that the rechargeable battery can power the car battery, or the car battery can power the rechargeable battery, only when the connection is made. The charging module includes a control module and a bidirectional charging circuit; the control module is connected to a control switch; the two ends of the bidirectional charging circuit are connected to the rechargeable battery and the car cigarette lighter plug, respectively. The control module is used to control the bidirectional charging circuit to turn on when it receives an open signal from the control switch, and to control the bidirectional charging circuit to turn off when it receives an off signal from the control switch. The bidirectional charging circuit includes a first wireless charging and discharging module, a second wireless charging and discharging module, and an inverter. The first wireless charging / discharging module is connected to the rechargeable battery, the second wireless charging / discharging module is connected to the inverter, and the inverter is connected to the car cigarette lighter plug; the first wireless charging / discharging module and the second wireless charging / discharging module are connected. The charge / discharge switch key is used to control the connection direction of the bidirectional charging circuit; a battery placement area is set below the center console, in which the rechargeable battery, the first wireless charging / discharging module, and the second wireless charging / discharging module are all placed.

2. The wireless charging device for automotive batteries as described in claim 1, characterized in that, The rechargeable battery also features a display module and a power acquisition module; The power acquisition module is used to acquire the power level of the rechargeable battery; The display module is used to display the rechargeable battery level.

3. The wireless charging device for automotive batteries as described in claim 1, characterized in that, Both the control module and the control switch are located on the rechargeable battery.

4. A wireless charging system for automotive batteries, characterized in that, The invention includes a wireless charging device for an automotive battery as described in any one of claims 1-3.

5. A charging method for a wireless charging device for an automotive battery as described in any one of claims 1-3, characterized in that, include: Turn on the control switch to connect the charging module, which can charge the car battery through the rechargeable battery or supply power to the rechargeable battery through the car battery. When the control switch is turned off, the charging module is disconnected, the rechargeable battery stops charging the car battery, and the car battery stops supplying power to the rechargeable battery.

6. The charging method of a wireless charging device for an automotive battery as described in claim 5, characterized in that, When the control switch is turned on, and the charge / discharge switch is in the battery charging position, the car battery is charged through the rechargeable battery. When the control switch is turned on, and the charge / discharge switch is in the battery discharge position, the rechargeable battery is charged through the car battery.

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