Charging pile for power battery pack, power battery pack, charging system and vehicle

Abstract

The invention provides a charging pile for a power battery pack, the power battery pack, a charging system and a vehicle. The power battery pack comprises a first temperature adjusting pipeline, and the charging pile for the power battery pack comprises a charging module used for generating charging current so as to charge the power battery pack; the charging gun head is electrically connected with the charging module; the first temperature adjusting component is provided with a first fluid outlet and a first fluid inlet, the first temperature adjusting component and a second temperature adjusting component on the vehicle side form a second temperature adjusting pipeline through the first fluid outlet and the first fluid inlet, and the second temperature adjusting pipeline and the first temperature adjusting pipeline are isolated from each other; and the heat management module is used for controlling the temperature and the flow velocity of the fluid in the second temperature adjusting pipeline based on the obtained parameters associated with the power battery pack.

Description

Technical Field

[0001] The present disclosure relates to the field of electric vehicles, and more specifically, to a charging pile for a power battery pack, a power battery pack, a charging system including the above-mentioned charging pile or power battery pack, and a vehicle. Background Art

[0002] With the rapid development of pure electric vehicles and plug-in electric vehicles in the domestic and international automotive fields, and the increasingly comprehensive functional configurations of various vehicles, consumers are now placing higher and higher demands on the capacity of energy storage components, namely power battery packs. At the same time, consumers are also placing higher demands on charging speed and efficiency.

[0003] Household pure electric passenger cars generally need to be charged for one hour to meet the convenience requirements. With the breakthrough of the power distribution network and charging pile capabilities, it is possible to shorten the charging time by increasing the charging power. However, the increase in charging power and charging current also puts higher demands on battery thermal management. At present, electric vehicles rely on the cooling capacity of the air conditioning system to achieve the purpose of heat dissipation when the power battery needs to be cooled, and rely on electric heaters to heat the battery when it needs to be heated.

[0004] As mentioned above, the existing battery cooling and heating functions are realized by the air conditioning system of the electric vehicle itself to achieve refrigeration and electric heating, thereby cooling or heating the antifreeze, and then cooling and heating the battery through the flow of the antifreeze, as follows:

[0005] When the battery needs to be cooled, the vehicle air conditioning system compressor compresses the refrigerant and flows it into the condenser to cool and liquefy. Then it passes through the throttle valve and enters the battery cooler to evaporate and absorb heat, cooling the antifreeze flowing through the battery cooler. Under the action of the water pump, the low-temperature antifreeze enters the cooling circuit in the power battery pack to cool and dissipate the power battery, and the heat of the power battery is transferred to the external environment. Correspondingly, when the battery needs to be heated, the electric heater of the electric vehicle is powered on, and the internal electric heating module generates heat and heats up, heating the antifreeze in the circuit. The heated antifreeze is pumped into the circulation circuit in the power battery pack by the water pump to heat the battery and put it in a good working condition.

[0006] The cooling and heating achieved by the existing thermal management technology of power batteries are all achieved by the electric vehicle component system. First of all, with the demand for supercharging, the electrical performance of power batteries can already meet the technical requirements of replenishing 400 kilometers in 5 to 10 minutes, but the cooling system components are limited by the layout of electric vehicles and the capacity of parts, and it is difficult to provide the cooling capacity of the supercharging process. At the same time, other working conditions do not require such a high cooling capacity. In addition, increasing the capacity and size of parts and systems will increase costs and aggravate noise problems. Secondly, the speed of heating by electric heaters in low temperature conditions is also limited by power and heat conduction processes. The battery temperature rise rate is generally not higher than 1°C per minute, which results in very slow increases in charging power and discharging power. The long charging time accelerates the poor user experience and ultimately leads to low customer satisfaction.

[0007] In addition, although charging piles with cooling and heating systems can also heat and cool electric vehicle batteries, the heating rate of liquid heating is limited, and the improvement of low-temperature conditions is not obvious. At the same time, antifreeze directly entering the cooling circuit of electric vehicles is prone to mixing and mutual contamination, which can lead to precipitation of antifreeze. Summary of the invention

[0008] In order to solve the above problem, that is, the existing temperature control response speed achieved by using vehicle air conditioners or electric heaters is too slow, and when the temperature control is achieved by charging piles, the heat transfer medium is easily mixed with the cooling medium in the vehicle circuit, thereby affecting the overall temperature control effect. The inventor of the present disclosure innovatively thought of adding an auxiliary thermal management function to the charging pile, so that the thermal management needs of electric vehicles during the charging process can be assisted by the charging pile, and at the same time, it can also solve the problem of contamination caused by mixing of heat transfer media in the thermal management isolation circuit of electric vehicles, thereby achieving an ideal cooling and heating speed of the power battery pack, increasing the charging power and shortening the charging time, and improving customer satisfaction and product competitiveness.

[0009] Based on this, the first aspect of the present disclosure proposes a charging pile for a power battery pack, the power battery pack comprising a first temperature regulating pipeline, and the charging pile comprising:

[0010] A charging module, the charging module is used to generate a charging current to charge the power battery pack;

[0011] A charging gun head, the charging gun head is electrically connected to the charging module;

[0012] a first temperature control component, the first temperature control component having a first fluid outlet and a first fluid inlet, and being configured to form a second temperature control line with a second temperature control component on the vehicle side via the first fluid outlet and the first fluid inlet, wherein the second temperature control line is isolated from the first temperature control line; and

[0013] A thermal management module for the power battery pack, the thermal management module being used to control the temperature and flow rate of the fluid in the second temperature regulating pipeline based on the acquired parameters associated with the power battery pack.

[0014] The charging pile proposed according to the present disclosure is provided with a first temperature control component, which can form a second temperature control pipeline when connected to the electric vehicle to be charged, and the second temperature control pipeline is isolated from the first temperature control pipeline of the power battery pack. Such a design can not only assist the power battery pack in temperature control, but also prevent the mixing of heat transfer media and the occurrence of corresponding pollution. In addition, the charging pile proposed according to the present disclosure is also provided with a thermal management module, which can control the temperature and flow rate of the fluid in the second temperature control pipeline based on the acquired parameters associated with the power battery pack, in order to achieve an ideal temperature control effect on the power battery pack.

[0015] According to one embodiment of the present disclosure, the charging pile further includes: a pulse current generator, which is electrically connected to the charging gun head and is configured to generate a pulse current to heat the power battery pack. In this way, when auxiliary heating is required, the pulse current generator electrically connected to the charging gun head can be used to generate a pulse current, thereby auxiliary heating the power battery pack, making the temperature rise faster, thereby shortening the time required for the entire charging process.

[0016] According to one embodiment of the present disclosure, the thermal management module is further configured to control the pulse current generator based on the acquired parameters associated with the power battery pack. In this way, the charging pile disclosed in the present disclosure can dynamically and specifically control the pulse current generator according to the operating parameters of the power battery pack to achieve an ideal temperature control effect.

[0017] According to one embodiment of the present disclosure, the thermal management module is further configured to: start the pulse current generator when the temperature of the power battery pack is lower than a first threshold value. In this way, the charging pile disclosed in the present disclosure can start the pulse current generator when the pulse current generator is needed to assist the power battery pack in heating up.

[0018] According to one embodiment of the present disclosure, the thermal management module is further configured to: stop the pulse current generator when the temperature of the power battery pack reaches a second threshold value not lower than the first threshold value. In addition, according to one embodiment of the present disclosure, the thermal management module is further configured to: output a signal for starting the charging module when the temperature of the power battery pack reaches a second threshold value not lower than the first threshold value. In this way, auxiliary heating of the power battery pack can be stopped and charging can be performed when the temperature of the power battery pack reaches a set temperature.

[0019] Preferably, according to one embodiment of the present disclosure, the charging pile further comprises: an interaction module, the interaction module being configured to interact with a user of the charging pile. More preferably, according to one embodiment of the present disclosure, the interaction module is configured as a touch screen and / or a card reader.

[0020] Optionally, according to an embodiment of the present disclosure, the first fluid outlet and the first fluid inlet are configured at the charging gun head.

[0021] In addition, a second aspect of the present disclosure provides a power battery pack, which is disposed in a vehicle, and includes:

[0022] A power battery configured to store electrical energy;

[0023] a first temperature regulating pipeline, the first temperature regulating pipeline being in communication with a temperature control system of the vehicle; and

[0024] A second temperature control component, wherein the second temperature control component has a second fluid inlet and a second fluid outlet and is configured to form a second temperature control pipeline with the first temperature control component on the charging pile side via the second fluid inlet and the second fluid outlet, wherein the second temperature control pipeline is isolated from the first temperature control pipeline.

[0025] A second temperature control component is provided in the power battery pack proposed according to the contents of the present disclosure, which can form a second temperature control pipeline when connected to the charging pile, and the second temperature control pipeline is isolated from the first temperature control pipeline possessed by the power battery pack. Such a design can not only assist the power battery pack in temperature control, but also prevent the mixing of heat-conducting media and the occurrence of corresponding pollution.

[0026] Preferably, according to one embodiment of the present disclosure, the power battery is configured as a rechargeable secondary battery. Preferably, according to one embodiment of the present disclosure, the second fluid outlet and the second fluid inlet are configured at a charging socket of the vehicle.

[0027] According to one embodiment of the present disclosure, the second temperature regulating component is directly connected to the power battery, or the second temperature regulating component is connected to the power battery via a heat conductive material. In this way, the second temperature regulating component can be directly connected to the power battery to perform heat conduction, or can be connected to the power battery via a heat conductive material to further optimize the effect of heat conduction.

[0028] Furthermore, a third aspect of the present disclosure proposes a vehicle, which includes the power battery pack proposed according to the second aspect of the present disclosure.

[0029] Finally, the fourth aspect of the present disclosure proposes a charging system, which includes the charging pile proposed according to the first aspect of the present disclosure and / or the power battery pack proposed according to the second aspect of the present disclosure.

[0030] In summary, a first temperature control component is provided in the charging pile proposed according to the present disclosure, which can form a second temperature control pipeline when connected to the electric vehicle to be charged, and the second temperature control pipeline is isolated from the first temperature control pipeline of the power battery pack. Such a design can not only assist the power battery pack in temperature control, but also prevent the mixing of heat transfer media and the occurrence of corresponding pollution. In addition, a thermal management module is also provided in the charging pile proposed according to the present disclosure, which can control the temperature and flow rate of the fluid in the second temperature control pipeline based on the acquired parameters associated with the power battery pack, in order to achieve an ideal temperature control effect on the power battery pack. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] The features, advantages and other aspects of the embodiments of the present disclosure will become more apparent with reference to the following detailed description in conjunction with the accompanying drawings, in which several embodiments of the present disclosure are shown in an exemplary and non-limiting manner. In the accompanying drawings:

[0032] Figure 1 An exemplary block diagram of a charging pile according to an embodiment of the present disclosure is shown;

[0033] Figure 2 An exemplary system block diagram of a charging system according to one embodiment of the present disclosure is shown;

[0034] Figure 3 An exemplary system block diagram showing a charging system according to one embodiment of the present disclosure; and

[0035] Figure 4 An exemplary block diagram of a power battery pack according to yet another embodiment of the present disclosure is shown. DETAILED DESCRIPTION

[0036] The various exemplary embodiments of the present disclosure are described in detail below with reference to the accompanying drawings. Although the exemplary methods and devices described below include software and / or firmware executed on hardware among other components, it should be noted that these examples are merely illustrative and should not be considered restrictive. For example, it is considered that any or all hardware, software, and firmware components can be implemented exclusively in hardware, exclusively in software, or in any combination of hardware and software. Therefore, although exemplary methods and devices have been described below, it should be readily understood by those skilled in the art that the examples provided are not intended to limit the manner in which these methods and devices are implemented.

[0037] In addition, the flowcharts and block diagrams in the accompanying drawings illustrate the possible architecture, functions and operations of the methods and systems according to the various embodiments of the present disclosure. It should be noted that the functions marked in the boxes may also occur in an order different from that marked in the accompanying drawings. For example, two boxes represented in succession may actually be executed substantially in parallel, or they may sometimes be executed in the opposite order, depending on the functions involved. It should also be noted that each box in the flowchart and / or block diagram, and the combination of boxes in the flowchart and / or block diagram, may be implemented using a dedicated hardware-based system that performs a specified function or operation, or may be implemented using a combination of dedicated hardware and computer instructions.

[0038] The terms "including", "comprising" and similar terms used herein are open terms, i.e., "including / including but not limited to", indicating that other contents may also be included. The term "based on" means "based at least in part on". The term "one embodiment" means "at least one embodiment"; the term "another embodiment" means "at least one other embodiment", etc.

[0039] As mentioned above, the temperature control system of the power battery pack in the prior art basically relies solely on the air conditioning system carried by the electric vehicle itself. The disadvantage of such a technical solution is that as the temperature control requirements of the power battery pack increase, either the existing air conditioning system is not modified, resulting in the new requirements not being met, or the existing air conditioning system is modified, which brings additional costs. The investment of this additional cost does not actually have much effect when the electric vehicle is driving normally, resulting in a waste of resources. Even if there is a technical solution that uses the temperature control system on the charging pile side to assist in temperature adjustment, the heat transfer medium of such a technical solution is also the heat transfer medium that directly enters the air conditioning system of the electric vehicle, which will bring risks to the operation of the air conditioning systems of electric vehicles of different brands.

[0040] In order to solve the above technical problems, in abstract, the present disclosure proposes a charging pile for a power battery pack, the power battery pack including a first temperature control pipeline, and the charging pile includes: a charging module, the charging module is used to generate a charging current to charge the power battery pack; a charging gun head, the charging gun head is electrically connected to the charging module; a first temperature control component, the first temperature control component has a first fluid outlet and a first fluid inlet, and is constructed to form a second temperature control pipeline with a second temperature control component on the vehicle side via the first fluid outlet and the first fluid inlet, wherein the second temperature control pipeline is isolated from the first temperature control pipeline; and a thermal management module for the power battery pack, the thermal management module is used to control the temperature and flow rate of the fluid in the second temperature control pipeline based on the acquired parameters associated with the power battery pack. The charging pile proposed according to the present disclosure is provided with a first temperature control component, which can form a second temperature control pipeline when connected to the electric vehicle to be charged, and the second temperature control pipeline is isolated from the first temperature control pipeline of the power battery pack. Such a design can not only assist the power battery pack in temperature control, but also prevent the mixing of heat transfer media and the occurrence of corresponding pollution. In addition, the charging pile proposed according to the present disclosure is also provided with a thermal management module, which can control the temperature and flow rate of the fluid in the second temperature control pipeline based on the acquired parameters associated with the power battery pack, in order to achieve an ideal temperature control effect on the power battery pack.

[0041] In addition, the present disclosure also makes an updated design on the electric vehicle side, that is, the present disclosure also proposes a power battery pack, which is arranged in a vehicle, and the power battery pack includes: a power battery, which is configured to store electric energy; a first temperature regulating pipeline, which is connected to the temperature control system of the vehicle; and a second temperature regulating component, which has a second fluid inlet and a second fluid outlet and is configured to form a second temperature regulating pipeline with the first temperature regulating component on the charging pile side via the second fluid inlet and the second fluid outlet, wherein the second temperature regulating pipeline is isolated from the first temperature regulating pipeline. In the power battery pack proposed according to the present disclosure, a second temperature regulating component is provided, which can form a second temperature regulating pipeline when connected to the charging pile, and the second temperature regulating pipeline is isolated from the first temperature regulating pipeline of the power battery pack. Such a design can not only play the role of assisting the power battery pack in temperature control, but also prevent the mixing of heat transfer media and the occurrence of corresponding pollution.

[0042] The following will be described in more detail with the help of the attached appendix. Figure 1 To Attachment Figure 4To describe the implementation method and technical effect of the innovative technical solution proposed in this disclosure. Specifically, potential, Figure 1 An exemplary block diagram of a charging pile according to an embodiment of the present disclosure is shown; Figure 2 An exemplary system block diagram of a charging system according to one embodiment of the present disclosure is shown; Figure 3 An exemplary system block diagram of a charging system according to an embodiment of the present disclosure is shown; and Figure 4 An exemplary block diagram of a power battery pack according to yet another embodiment of the present disclosure is shown.

[0043] from Figure 1 It can be seen that the charging pile for the power battery pack can be upgraded on the structure of the traditional charging pile. In addition to the main controller 110, the charging module 120, the charging gun head 130 and the metering / monitoring module 180 required for billing, it is also additionally designed with a temperature control component 160 for assisting the power battery pack in temperature control and a corresponding controller, i.e., a battery thermal management module 150. Optionally, the charging pile can also include, for example, an interactive module 170, which can enable the operator to operate the charging pile, such as operating the charging pile through a touch screen, a card reader, wired or wireless communication, and a safety button. Preferably, in order to heat the power battery pack faster, a pulse current generating module 140 can also be provided, which can heat the power battery pack when needed under the control of the main controller 110 to increase the heating speed so that it can enter the charging state faster.

[0044] Here, the charging module 120 is electrically connected to the main controller 110 and is controlled by the main controller 110 so as to determine the charging parameters of the charging pile, such as charging current, charging power, etc. After configuring the relevant charging parameters, the charging module 120 can provide the corresponding power supply to the charging gun head 130 so as to charge the power battery pack of the electric vehicle connected thereto. During the charging process, the metering / detection module 180 will monitor the charging process so as to ensure charging safety and perform corresponding charging control in a timely manner. In addition, the metering / detection module 180 will also perform corresponding metering to provide a corresponding basis for charging charges.

[0045] Optionally, the operator (e.g., the owner of an electric car) can select the required charging mode, such as fast charging or slow charging, ordinary AC charging or DC charging, etc., through the interactive module 170. It is also possible to obtain the operating authority of the charging pile, for example, by swiping a radio frequency card, etc. The radio frequency card can be, for example, a recharge card or an NFC card integrated in a smart device such as a mobile phone. Of course, existing methods of using network communication are also feasible, such as Bluetooth, wired Internet of Things, wireless Internet of Things, the Internet, etc. are all feasible implementation methods.

[0046] As mentioned above, the technical solution disclosed in the present disclosure uniquely designs a temperature control component 160 and a corresponding controller (such as a battery thermal management module 150) for assisting the temperature control of the power battery pack. During specific manufacturing, the temperature control component 160 for assisting the temperature control of the power battery pack can be integrated with the charging gun head 130, for example, and it includes a fluid outlet and a fluid inlet. The heat-conducting medium in the temperature control pipeline can flow into the second temperature control pipeline on the electric vehicle side through the fluid outlet to assist in temperature regulation of the power battery pack on this side of the electric vehicle. The heat-conducting medium that has exchanged heat re-enters the charging pile side through the fluid inlet so that it can be further temperature-controlled to meet the temperature control requirements for the power battery pack. Of course, those skilled in the art should understand that a non-integrated separate independent heat-conducting medium plug is also a feasible technical solution. At this time, it may be necessary to perform plug-in and unplug operations for charging and heat conduction respectively.

[0047] Here, the fluid outlet and the fluid inlet are, for example, originally closed, and can be connected to the temperature control circuit on the electric vehicle side when inserted into the charging interface of the electric vehicle, so as to realize the flow of the heat transfer medium. For this purpose, a sealing element is provided at the fluid outlet and the fluid inlet, for example, to prevent the leakage of the heat transfer medium. In addition, an exhaust device can be provided in the temperature control circuit, for example, to discharge the gas contained in the heat transfer medium in the corresponding temperature control circuit, which can not only improve the heat transfer efficiency, but also facilitate the management of the heat transfer process.

[0048] In addition, the second temperature regulating pipeline is isolated from the original first temperature regulating pipeline of the air conditioning system on the electric vehicle side. In this way, such a design can not only assist the power battery pack in temperature control, but also prevent the mixing of heat transfer media and the corresponding pollution.

[0049] In order to further manage the temperature and flow rate of the heat-conducting medium in the thermostatic pipeline on the charging pile side, the charging pile proposed in accordance with the present disclosure includes a thermal management module 150 for the power battery pack, and the thermal management module 150 is used to control the temperature and flow rate of the fluid in the second thermostatic pipeline based on the acquired parameters associated with the power battery pack. Here, the acquired parameters associated with the power battery pack are, for example, the current temperature of the power battery pack, the current ambient temperature and the desired temperature of the power battery pack, or the desired temperature and flow rate of the fluid in the second thermostatic pipeline. In other words, the thermal management module 150 can calculate the desired target parameters, such as the desired temperature and flow rate of the fluid in the second thermostatic pipeline, based on the original parameters acquired from the electric vehicle side; it can also directly receive the desired temperature and flow rate of the fluid in the second thermostatic pipeline calculated by the calculation unit on the electric vehicle side from the communication unit on the electric vehicle side. In addition, the thermal management module 150 can be implemented by a separate computing unit such as a separate microcontroller MCU, or the main controller 110 of the charging pile can integrate the functions of the thermal management module 150. Furthermore, such control functions can be implemented in hardware, firmware or software.

[0050] For example, when the temperature of the power battery pack is higher than 50 degrees, the target temperature of the fluid as the heat transfer medium in the second temperature regulating pipeline is set to 10 degrees, and the flow rate is set to 4 cubic meters per hour; when the temperature of the power battery pack is higher than 70 degrees, the target temperature of the fluid as the heat transfer medium in the second temperature regulating pipeline is set to 3 degrees, and the flow rate is set to 10 cubic meters per hour. On the contrary, for example, when the temperature of the power battery pack is lower than -5 degrees, the target temperature of the fluid as the heat transfer medium in the second temperature regulating pipeline is set to 30 degrees, and the flow rate is set to 4 cubic meters per hour; when the temperature of the power battery pack is lower than -20 degrees, the target temperature of the fluid as the heat transfer medium in the second temperature regulating pipeline is set to 50 degrees, and the flow rate is set to 10 cubic meters per hour.

[0051] Compared with the traditional charging process that relies solely on the thermal management system of the electric vehicle and the traditional charging pile thermal management system, the charging pile proposed in the present disclosure can greatly increase the charging speed by adding an auxiliary thermal management module 150 to the charging pile. In addition, through the function of the auxiliary thermal management module 150 of the charging pile, the battery thermal management circuit connected to the power battery pack makes the operating temperature of the power battery pack more ideal, and improves the cycle life of the power battery pack. Furthermore, the use of the auxiliary thermal management system in the charging process can reduce the performance requirements of the thermal management system of the electric vehicle, realize the miniaturization of the thermal management system of the electric vehicle, and thus reduce the weight of the electric vehicle; at the same time, the use of the auxiliary thermal management module 150 in the charging process can reduce the pressure on the selection of parts of the thermal management system of the electric vehicle, thereby realizing the cost reduction of the thermal management system of the electric vehicle. Finally, the technical solution of the charging pile proposed in the present disclosure can prevent the mixed contamination of the thermal management module of the power battery pack of the charging pile and the thermal management system of the electric vehicle, and improve the design flexibility of the thermal management system of the electric vehicle.

[0052] Through the optimization of the thermal management auxiliary device of the charging pile (such as the thermal management module 150) and the thermal management circuit of the electric vehicle (such as mutual isolation), the cooling process has a higher cooling capacity, and the heating process has the combined effect of AC pulse self-heating and liquid heating, which greatly improves the charging process of the electric vehicle. At the same time, it solves the pollution problem caused by the direct exchange of antifreeze between the existing basic charging pile auxiliary thermal management device 150 and the electric vehicle thermal management. By extension, this technical solution can also be used for all new energy storage battery systems that require cooling, reducing the difficulty of developing independent cooling systems and system costs, such as intelligent electric products such as drones and unmanned vehicles.

[0053] Although the various exemplary embodiments of the present disclosure described above can be implemented in hardware or dedicated circuits, the above-mentioned thermal management module 150 can be implemented in the form of hardware or software. This is because: in the 1990s, it was easy to determine whether a technical improvement was a hardware improvement (for example, an improvement to the circuit structure of a diode, transistor, switch, etc.) or a software improvement (for example, an improvement to the method flow). However, with the continuous development of technology, many improvements to the method flow today can almost be achieved by programming the improved method flow into the hardware circuit. In other words, by programming different programs for the hardware circuit to obtain the corresponding hardware circuit structure, that is, the change of the hardware circuit structure is achieved, so such an improvement in the method flow can also be regarded as a direct improvement in the hardware circuit structure. Therefore, it cannot be said that an improvement in a method flow cannot be implemented using a hardware entity module. For example, a programmable logic device (PLD) (such as a field programmable gate array (FPGA)) is such an integrated circuit, and its logical function is determined by the user programming the device. Designers can "integrate" a digital system on a programmable logic device by programming it themselves, without having to ask chip manufacturers to design and produce dedicated integrated circuit chips.Moreover, nowadays, instead of manually making integrated circuit chips, this kind of programming is mostly implemented by "logic compiler" software, which is similar to the software compiler used when developing and writing programs, and the original code before compilation must also be written in a specific programming language, which is called hardware description language (HDL). There is not only one type of HDL, but many types, such as ABEL (Advanced Boolean Expression Language), AHDL (Altera Hardware Description Language), Confluence, CUPL (Cornell University Programming Language), HDCal, JHDL (Java Hardware Description Language), Lava, Lola, MyHDL, PALASM, RHDL (Ruby Hardware Description Language), etc. The most commonly used ones are VHDL (Very-High-Speed ​​Integrated Circuit Hardware Description Language) and Verilog. Those skilled in the art should also know that it is only necessary to program the method flow slightly in the above-mentioned hardware description languages ​​and program it into the integrated circuit, and then it is easy to obtain the hardware circuit that implements the logic method flow. In other words, in general, the various example embodiments of the present disclosure may be implemented in hardware or dedicated circuits, software, firmware, logic, or any combination thereof. Certain aspects may be implemented in hardware, while other aspects may be implemented in firmware or software that may be executed by a controller, microprocessor, or other computing device. When various aspects of the embodiments of the present disclosure are illustrated or described as block diagrams, flow charts, or using some other graphical representation, it will be understood that the blocks, devices, systems, techniques, or methods described herein may be implemented in hardware, software, firmware, dedicated circuits or logic, general-purpose hardware or controllers or other computing devices, or some combination thereof as non-limiting examples.

[0054] The following reference Figure 2 and Figure 3 To illustrate the actual application scenarios of cooling and heating the power battery pack with the help of charging piles.

[0055] from Figure 2It can be seen that the charging pile for the power battery pack can be upgraded on the structure of the traditional charging pile. In addition to the main controller 210, the charging module 220 and the charging gun head 230, a temperature control component 260 and a corresponding controller, namely, a battery thermal management module 250, are additionally designed to assist the power battery pack in temperature control. Here, the charging module 220 is electrically connected to the main controller 210 and is controlled by the main controller 210. The main controller 210 receives a charging request from, for example, a vehicle controller 291 on the electric vehicle side, as well as possible control parameters, such as the target heat transfer medium temperature and flow rate, so as to determine the charging parameters of the charging pile, such as charging current, charging power, etc. After determining the relevant charging parameters, the charging module 220 can provide the charging gun head 230 with the corresponding power supply so as to charge the power battery pack of the electric vehicle connected thereto.

[0056] As mentioned above, the technical solution disclosed in the present disclosure uniquely designs a temperature control component 260 and a corresponding controller (such as a battery thermal management module 250) for assisting the temperature control of the power battery pack. In specific manufacturing, the temperature control component 260 for assisting the temperature control of the power battery pack can be integrated with the charging gun head 230, for example, including a fluid outlet and a fluid inlet, and the heat-conducting medium in the temperature control pipeline can flow into the second temperature control pipeline on the electric vehicle side through the fluid outlet to assist in temperature regulation of the power battery pack on this side of the electric vehicle. The heat-conducting medium that has exchanged heat re-enters the charging pile side through the fluid inlet so as to further control its temperature to meet the temperature control requirements for the power battery pack. Of course, those skilled in the art should understand that a non-integrated separate independent heat-conducting medium plug is also a feasible technical solution, and at this time it may be necessary to perform plug-in and unplug operations for charging and heat conduction respectively. Here, the charging gun head 230 is, for example, connected to the high-voltage charging circuit 292 of the whole vehicle of the electric vehicle, and the temperature control component 260 for assisting the temperature control of the power battery pack is, for example, connected to the temperature control circuit 293 of the power battery pack of the whole vehicle. For the purpose of cooling, the desired temperature of the heat transfer medium is usually set to be lower than the desired temperature of the power battery pack.

[0057] In application scenarios where the power battery pack needs to be heated, such as in winter or on snowy mountains, Figure 3As shown, in order to heat up faster so as to enter the charging state, the charging pile also includes a pulse current generator 390. In addition, basic components are also included. For example, in addition to the main controller 310, the charging module 320 and the charging gun head 330, the charging pile for the power battery pack is additionally designed with a temperature adjustment component 360 for assisting the power battery pack in temperature control and a corresponding controller, i.e., a battery thermal management module 350. Here, the charging module 320 and the main controller 310 are electrically connected and controlled by the main controller 310. The main controller 310 receives a charging request from, for example, a vehicle controller 391 on the electric vehicle side, as well as possible control parameters, such as the target heat transfer medium temperature and flow rate, so as to determine the charging parameters of the charging pile, such as charging current, charging power, etc. After determining the relevant charging parameters, the charging module 320 can provide the charging gun head 330 with a corresponding power supply so as to charge the power battery pack of the electric vehicle connected thereto.

[0058] As mentioned above, the technical solution disclosed in the present disclosure uniquely designs a temperature control component 360 and a corresponding controller (such as a battery thermal management module 350) for assisting the temperature control of the power battery pack. In specific manufacturing, the temperature control component 360 for assisting the temperature control of the power battery pack can be integrated with the charging gun head 330, for example, including a fluid outlet and a fluid inlet, and the heat-conducting medium in the temperature control pipeline can flow into the second temperature control pipeline on the electric vehicle side through the fluid outlet to assist in temperature regulation of the power battery pack on this side of the electric vehicle. The heat-conducting medium that has exchanged heat re-enters the charging pile side through the fluid inlet so as to further control its temperature to meet the temperature control requirements for the power battery pack. Of course, those skilled in the art should understand that a non-integrated separate independent heat-conducting medium plug is also a feasible technical solution, and at this time it may be necessary to perform plug-in and unplug operations for charging and heat conduction respectively. Here, the charging gun head 330 is, for example, connected to the high-voltage charging circuit 392 of the whole vehicle of the electric vehicle, and the temperature control component 360 for assisting the temperature control of the power battery pack is, for example, connected to the temperature control circuit 393 of the power battery pack of the whole vehicle.

[0059] The pulse current generator 390 is electrically connected to the charging gun head 330 and is configured to generate a pulse current to heat the power battery pack. In this way, when auxiliary heating is required, a pulse current can be generated by means of the pulse current generator 390 electrically connected to the charging gun head 330, thereby assisting in heating the power battery pack. Preferably, the thermal management module 350 is also configured to control the pulse current generator 390 based on the acquired parameters associated with the power battery pack, such as communication via the main controller 310 of the charging pile. In this way, the pulse current generator 390 can be dynamically and targetedly controlled according to the operating parameters of the power battery pack to achieve an ideal temperature control effect. Preferably, the thermal management module 350 is also configured to: start the pulse current generator 390 when the temperature of the power battery pack is lower than a first threshold value (for example, -10 degrees Celsius). In this way, the pulse current generator 390 can be started when the pulse current generator 390 is needed to assist the power battery pack in heating. In addition, according to one embodiment of the present disclosure, the thermal management module is further configured to: stop the pulse current generator when the temperature of the power battery pack reaches a second threshold value (e.g., 10 degrees Celsius) not lower than the first threshold value (e.g., -10 degrees Celsius). In addition, according to one embodiment of the present disclosure, the thermal management module is further configured to: output a signal for starting the charging module when the temperature of the power battery pack reaches a second threshold value (e.g., 10 degrees Celsius) not lower than the first threshold value (e.g., -10 degrees Celsius). In this way, the power battery pack can be charged when its temperature reaches the set temperature.

[0060] In the above drawings, different components are connected by solid lines or dashed lines. In the present disclosure, solid lines represent material exchange or energy exchange, while dashed lines represent information exchange, i.e., communication.

[0061] In addition to the charging pile, the present disclosure also proposes a power battery pack with an optimized thermal conductive structure. Figure 4 FIG. 2 shows an exemplary block diagram of a power battery pack according to another embodiment of the present disclosure. Figure 4It can be seen that the second aspect of the present disclosure proposes a power battery pack, which is arranged in a vehicle, and includes a power battery 430, which is configured to store electrical energy. For the purpose of energy storage and energy supply, the power battery 430 can have two conductive terminals 431 and 432, for example; in addition, the power battery pack can also have a first thermostatic pipeline 410, which is connected to the temperature control system of the vehicle. For the purpose of communication, the first thermostatic pipeline 410 can have an outlet 411 and an inlet 412 of a heat-conducting medium. Furthermore, the power battery pack can also have a second temperature control component 420, which has a second fluid inlet 421 and a second fluid outlet 422 and is constructed to form a second temperature control pipeline with the first temperature control component on the charging pile side via the second fluid inlet 421 and the second fluid outlet 422, wherein the second temperature control pipeline is isolated from the first temperature control pipeline 410. Such a design can not only assist the power battery pack in temperature control, but also prevent the mixing of heat transfer media and the occurrence of corresponding pollution.

[0062] Preferably, according to one embodiment of the present disclosure, the power battery is configured as a rechargeable secondary battery. Preferably, according to one embodiment of the present disclosure, the second fluid outlet and the second fluid inlet are configured at a charging socket of the vehicle.

[0063] According to one embodiment of the present disclosure, the second temperature regulating component is directly connected to the power battery, or the second temperature regulating component is connected to the power battery via a heat conductive material. In this way, the second temperature regulating component can be directly connected to the power battery to perform heat conduction, or can be connected to the power battery via a heat conductive material to further optimize the effect of heat conduction.

[0064] Furthermore, a third aspect of the present disclosure proposes a vehicle, which includes the power battery pack proposed according to the second aspect of the present disclosure.

[0065] Finally, the fourth aspect of the present disclosure proposes a charging system, which includes the charging pile proposed according to the first aspect of the present disclosure and / or the power battery pack proposed according to the second aspect of the present disclosure.

[0066] Although the embodiments of the present disclosure have been described with reference to several specific embodiments, it should be understood that the embodiments of the present disclosure are not limited to the specific embodiments disclosed. The embodiments of the present disclosure are intended to cover various modifications and equivalent arrangements included in the spirit and scope of the appended claims. The scope of the claims is consistent with the broadest interpretation, thereby including all such modifications and equivalent structures and functions.

Claims

1. A charging pile for a power battery pack, the power battery pack comprising a first temperature regulating pipeline, characterized in that: The charging pile comprises: A charging module, the charging module is used to generate a charging current to charge the power battery pack; A charging gun head, the charging gun head is electrically connected to the charging module; a first temperature control component, the first temperature control component having a first fluid outlet and a first fluid inlet, and being configured to form a second temperature control line with a second temperature control component on the vehicle side via the first fluid outlet and the first fluid inlet, wherein the second temperature control line is isolated from the first temperature control line; and A thermal management module for the power battery pack, the thermal management module being used to control the temperature and flow rate of the fluid in the second temperature regulating pipeline based on the acquired parameters associated with the power battery pack.

2. The charging pile according to claim 1, characterized in that: The charging pile also includes: A pulse current generator is electrically connected to the charging gun head and is configured to generate a pulse current so as to heat the power battery pack.

3. The charging pile according to claim 2, characterized in that: The thermal management module is further configured to control the pulse current generator based on the acquired parameters associated with the power battery pack.

4. The charging pile according to claim 2 or 3, characterized in that: The thermal management module is further configured to: The pulse current generator is started when the temperature of the power battery pack is lower than a first threshold.

5. The charging pile according to claim 4, characterized in that: The thermal management module is further configured to: The pulse current generator is stopped when the temperature of the power battery pack reaches a second threshold value that is not lower than the first threshold value.

6. The charging pile according to claim 4, characterized in that: The thermal management module is further configured to: When the temperature of the power battery pack reaches a second threshold that is not lower than the first threshold, a signal for starting the charging module is output.

7. The charging pile according to claim 1, characterized in that: The charging pile also includes: An interaction module is configured to interact with a user of the charging pile.

8. The charging pile according to claim 7, characterized in that: The interaction module is configured as a touch screen and / or a card reader.

9. The charging pile according to claim 1, characterized in that: The first fluid outlet and the first fluid inlet are configured on the charging gun head.

10. A power battery pack, the power battery pack being arranged in a vehicle, characterized in that: The power battery pack comprises: A power battery configured to store electrical energy; a first temperature regulating pipeline, the first temperature regulating pipeline being in communication with a temperature control system of the vehicle; and A second temperature control component, wherein the second temperature control component has a second fluid inlet and a second fluid outlet and is configured to form a second temperature control pipeline with the first temperature control component on the charging pile side via the second fluid inlet and the second fluid outlet, wherein the second temperature control pipeline is isolated from the first temperature control pipeline.

11. The power battery pack according to claim 10, characterized in that: The power battery is configured as a rechargeable secondary battery.

12. The power battery pack according to claim 10, characterized in that: The second fluid outlet and the second fluid inlet are configured at a charging socket of the vehicle.

13. The power battery pack according to claim 10, characterized in that: The second temperature regulating component is directly connected to the power battery, or the second temperature regulating component is connected to the power battery via a heat conductive material.

14. A vehicle, characterized in that: The vehicle comprises a power battery pack according to any one of claims 10 to 13.

15. A charging system, characterized in that: The charging system comprises a charging pile according to any one of claims 1 to 9 and / or a power battery pack according to any one of claims 10 to 13.

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