Charging station for traction battery pack, traction battery pack, charging system, and vehicle

Abstract

Provided in the present disclosure are a charging station for a traction battery pack, a traction battery pack, a charging system, and a vehicle. The traction battery pack comprises a first temperature regulation line. The charging station for the traction battery pack comprises: a charging module, wherein the charging module is used for generating a charging current, in order to charge the traction battery pack; a charging gun head, wherein the charging gun head is electrically connected to the charging module; a first temperature regulation component, wherein the first temperature regulation component has a first fluid outlet and a first fluid inlet and is configured, together with a second temperature regulation component on a vehicle side, to form a second temperature regulation line through the first fluid outlet and the first fluid inlet, the second temperature regulation line being isolated from the first temperature regulation line; and a thermal management module for the traction battery pack, wherein the thermal management module is used, on the basis of acquired parameters associated with the traction battery pack, for controlling the temperature and flow rate of a fluid in the second temperature regulation line.

Description

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

[0001] This application claims priority to the Chinese patent application filed with the China Patent Office on July 25, 2023, with application number 202310914530.6 and application name “Charging pile, power battery pack, charging system and vehicle for power battery pack”, the entire contents of which are incorporated by reference into this application. Technical Field

[0002] 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

[0003] 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.

[0004] Household pure electric passenger cars typically require a one-hour recharge time to meet convenience requirements. Advances in the power distribution grid and charging station capabilities have made it possible to shorten charging times by increasing charging power. However, this increase in charging power and current also places higher demands on battery thermal management. Currently, electric vehicles rely on the cooling capacity of the air conditioning system to cool the power battery, and rely on electric heaters to heat the battery.

[0005] As mentioned above, the existing battery cooling and heating functions are achieved by relying on the electric vehicle's own air conditioning system to achieve cooling and electric heating, thereby cooling or heating the antifreeze, and then the flow of antifreeze causes the battery to cool down and heat up, as follows:

[0006] When the battery needs to be cooled, the vehicle's air conditioning system compressor compresses the refrigerant, causing it to flow into the condenser to cool and liquefy. The refrigerant then passes through a throttle valve and enters the battery cooler, evaporating and absorbing heat, thereby cooling the antifreeze flowing through the battery cooler. A water pump drives the low-temperature antifreeze into the power battery pack's cooling circuit, cooling and dissipating the heat, transferring the power battery's heat to the external environment. Conversely, when the battery needs to be heated, the electric heater in the electric vehicle is energized, and the internal electric heating module generates heat, heating the antifreeze in the circuit. The heated antifreeze is then pumped into the power battery pack's circulation circuit by the water pump to heat the battery and keep it in good working condition.

[0007] Existing thermal management technologies for power batteries achieve both cooling and heating through the electric vehicle component system. First, with the increasing demand for supercharging, the electrical performance of power batteries has reached the technical requirement of a 400-kilometer range in 5-10 minutes. However, the cooling system components are limited by the layout of the electric vehicle and the capabilities of the components, making it difficult to provide the cooling capacity required for the supercharging process. At the same time, other operating conditions do not require such high cooling capacity. Furthermore, increasing the capacity and size of the components and systems will increase costs and exacerbate noise issues. Secondly, the speed of heating by electric heaters in low-temperature conditions is also limited by power and the influence of heat conduction processes. The battery temperature rise rate is generally no more than 1°C per minute, resulting in very slow increases in both charging and discharging power. Long charging times exacerbate the poor user experience and ultimately lead to low customer satisfaction.

[0008] Furthermore, while charging stations with cooling and heating systems can also heat and cool electric vehicle batteries, the heating rate of liquid heating is limited, and low-temperature operating conditions are not significantly improved. Furthermore, antifreeze fluid directly entering the electric vehicle's cooling circuit is prone to mixing and contamination, leading to precipitation.

[0009] Summary of the Invention

[0010] To address the aforementioned issues, namely the slow response speed of existing temperature control methods using onboard air conditioners or electric heaters, and the tendency for the heat transfer medium to mix with the cooling medium in the onboard circuit when temperature control is achieved through charging piles, thereby affecting the overall temperature control effect, the inventors of the present disclosure have innovatively conceived of adding auxiliary thermal management functions to charging piles, enabling the charging piles to assist in meeting the thermal management needs of electric vehicles during charging. This also addresses the issue of contamination caused by mixing of heat transfer media in the electric vehicle's thermal management isolation circuit, thereby achieving ideal cooling and heating speeds for the power battery pack, increasing charging power and shortening charging time, thereby enhancing customer satisfaction and product competitiveness.

[0011] Based on this, a first aspect of the present disclosure provides a charging pile for a power battery pack, wherein the power battery pack includes a first temperature regulating pipeline, and the charging pile includes:

[0012] a charging module, the charging module being used to generate a charging current to charge the power battery pack;

[0013] A charging gun head, the charging gun head is electrically connected to the charging module;

[0014] a 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

[0015] A thermal management module for the power battery pack, the thermal management module being configured 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.

[0016] The charging pile proposed in accordance with the present disclosure is provided with a first temperature-regulating component, which, when connected to the electric vehicle to be charged, forms a second temperature-regulating pipeline. This second temperature-regulating pipeline is isolated from the first temperature-regulating pipeline of the power battery pack. This design not only assists in temperature control of the power battery pack, but also prevents mixing of heat transfer media and the resulting contamination. Furthermore, the charging pile proposed in accordance with the present disclosure is also provided with a thermal management module, which controls the temperature and flow rate of the fluid in the second temperature-regulating pipeline based on acquired parameters associated with the power battery pack, in order to achieve ideal temperature control of the power battery pack.

[0017] According to one embodiment of the present disclosure, the charging station further includes a pulse current generator electrically connected to the charging gun head and configured to generate a pulse current to heat the power battery pack. In this manner, when auxiliary heating is required, the pulse current generator electrically connected to the charging gun head can generate a pulse current to assist in heating the power battery pack, thereby accelerating the heating process and shortening the time required for the entire charging process.

[0018] According to one embodiment of the present disclosure, the thermal management module is further configured to control the pulse current generator based on acquired parameters associated with the power battery pack. In this way, the charging pile disclosed in accordance with the present disclosure can dynamically and specifically control the pulse current generator based on the operating parameters of the power battery pack to achieve ideal temperature control effects.

[0019] According to one embodiment of the present disclosure, the thermal management module is further configured to activate the pulse current generator when the temperature of the power battery pack falls below a first threshold. In this way, the charging station disclosed in accordance with the present disclosure can activate the pulse current generator when the pulse current generator is needed to assist in heating the power battery pack.

[0020] 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 that is not lower than the first threshold value. Furthermore, according to one embodiment of the present disclosure, the thermal management module is further configured to: output a signal to activate the charging module when the temperature of the power battery pack reaches a second threshold value that is not lower than the first threshold value. In this way, auxiliary heating of the power battery pack can be stopped and charging can be continued when the temperature of the power battery pack reaches a set temperature.

[0021] Preferably, according to one embodiment of the present disclosure, the charging pile further comprises: an interaction module 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.

[0022] Optionally, according to one embodiment of the present disclosure, the first fluid outlet and the first fluid inlet are configured at the charging gun head.

[0023] In addition, a second aspect of the present disclosure provides a power battery pack, which is disposed in a vehicle and includes:

[0024] a power battery configured to store electrical energy;

[0025] a first temperature regulating pipeline, the first temperature regulating pipeline being in communication with a temperature control system of the vehicle; and

[0026] A 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.

[0027] 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 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.

[0028] 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.

[0029] 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 thermally conductive material. In this way, the second temperature regulating component can be directly connected to the power battery to achieve heat conduction, or it can be connected to the power battery via a thermally conductive material to further optimize the heat conduction effect.

[0030] Furthermore, a third aspect of the present disclosure provides a vehicle, comprising the power battery pack provided according to the second aspect of the present disclosure.

[0031] 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.

[0032] In summary, the charging pile proposed in accordance with 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. This second temperature control pipeline is isolated from the first temperature control pipeline of the power battery pack. This design can not only assist in temperature control of the power battery pack, but also prevent mixing of the heat transfer medium and the corresponding contamination. In addition, the charging pile proposed in accordance with 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 the desired temperature control effect for the power battery pack. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] 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 illustrative and non-limiting manner. In the accompanying drawings:

[0034] FIG1 shows an exemplary block diagram of a charging pile according to an embodiment of the present disclosure;

[0035] FIG2 shows an exemplary system block diagram of a charging system according to one embodiment of the present disclosure;

[0036] FIG3 shows an exemplary system block diagram of a charging system according to one embodiment of the present disclosure; and

[0037] FIG4 shows an exemplary block diagram of a power battery pack according to yet another embodiment of the present disclosure. DETAILED DESCRIPTION

[0038] The following describes in detail various exemplary embodiments of the present disclosure with reference to the accompanying drawings. Although the exemplary methods and apparatus 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 contemplated that any or all hardware, software, and firmware components may be implemented exclusively in hardware, exclusively in software, or in any combination of hardware and software. Therefore, although exemplary methods and apparatus 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 apparatus are implemented.

[0039] In addition, the flowcharts and block diagrams in the accompanying drawings illustrate possible architectures, functions, and operations of the methods and systems according to 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 the specified function or operation, or may be implemented using a combination of dedicated hardware and computer instructions.

[0040] As used herein, the terms "including," "comprising," and similar terms are open-ended terms, meaning "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," and the term "another embodiment" means "at least one additional embodiment," etc.

[0041] As previously mentioned, the temperature control systems for power battery packs in the prior art are essentially solely based on the electric vehicle's own air conditioning system. The disadvantage of such a solution is that as the temperature control requirements for power battery packs increase, either the existing air conditioning system must be left unmodified, resulting in the new requirements not being met, or the existing air conditioning system must be modified, which incurs additional costs. This additional cost is not significantly effective during normal operation of the electric vehicle, resulting in a waste of resources. Even if there are technical solutions that utilize the temperature control system on the charging station side for auxiliary temperature control, the heat transfer medium in such a solution directly enters the heat transfer medium of the electric vehicle's air conditioning system, which poses risks to the operation of the air conditioning systems of electric vehicles of different brands.

[0042] In order to solve the above technical problems, in abstract terms, 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 including: a charging module, the charging module being used to generate a charging current to charge the power battery pack; a charging gun head, the charging gun head being 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 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 being 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 in accordance with the present disclosure is provided with a first temperature-regulating component, which, when connected to the electric vehicle to be charged, forms a second temperature-regulating pipeline. This second temperature-regulating pipeline is isolated from the first temperature-regulating pipeline of the power battery pack. This design not only assists in temperature control of the power battery pack, but also prevents mixing of heat transfer media and the resulting contamination. Furthermore, the charging pile proposed in accordance with the present disclosure is also provided with a thermal management module, which controls the temperature and flow rate of the fluid in the second temperature-regulating pipeline based on acquired parameters associated with the power battery pack, in order to achieve ideal temperature control of the power battery pack.

[0043] 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 includes: a power battery configured to store electrical energy; a first temperature control pipeline, the first temperature control pipeline being connected to the vehicle's temperature control system; and a second temperature control component, the second temperature control component having a second fluid inlet and a second fluid outlet and being 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. The power battery pack proposed in accordance with the present disclosure is provided with a second temperature control component, 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 of the power battery pack. This design can not only assist the power battery pack in temperature control, but also prevent the mixing of heat transfer media and the corresponding contamination.

[0044] The following will describe in more detail the implementation of the innovative technical solution proposed in accordance with the present disclosure and the technical effects achieved with the aid of the accompanying Figures 1 to 4. Specifically, Figure 1 shows an exemplary block diagram of a charging pile according to one embodiment of the present disclosure; Figure 2 shows an exemplary system block diagram of a charging system according to one embodiment of the present disclosure; Figure 3 shows an exemplary system block diagram of a charging system according to one embodiment of the present disclosure; and Figure 4 shows an exemplary block diagram of a power battery pack according to another embodiment of the present disclosure.

[0045] As can be seen from Figure 1, the charging pile for power battery packs can be upgraded on the structure of traditional charging piles. In addition to including a main controller 110, a charging module 120, a charging gun head 130, and a metering / monitoring module 180 required for billing, it is also designed with an additional temperature control component 160 for assisting the temperature control of the power battery pack and a corresponding controller, namely a battery thermal management module 150. Optionally, the charging pile can also include, for example, an interactive module 170, which enables the operator to operate the charging pile, such as through a touch screen, a card reader, wired or wireless communication, and a safety button. Preferably, in order to heat the power battery pack more quickly, 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, thereby increasing the heating speed so that it can enter the charging state more quickly.

[0046] 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 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 to ensure charging safety and perform corresponding charging control in a timely manner. In addition, the metering / detection module 180 will also perform corresponding measurement to provide a corresponding basis for charging charges.

[0047] Optionally, an operator (e.g., an electric vehicle owner) can select a desired charging mode, such as fast charging or slow charging, conventional AC charging or DC charging, etc., via the interactive module 170. It is also possible to obtain operating authority for the charging station by, for example, swiping a radio frequency card. The radio frequency card can be, for example, a recharge card or an NFC card integrated into a smart device such as a mobile phone. Of course, existing network communication methods are also feasible, such as Bluetooth, wired Internet of Things, wireless Internet of Things, and the Internet.

[0048] 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. In this case, it may be necessary to perform plug-in and unplug operations for charging and heat conduction separately.

[0049] Here, the fluid outlet and inlet, for example, are originally closed, but when plugged into the electric vehicle's charging port, they can connect to the electric vehicle's thermostatic circuit to facilitate the flow of the heat transfer medium. To this end, sealing elements are provided at the fluid outlet and inlet, for example, to prevent leakage of the heat transfer medium. Furthermore, the thermostatic circuit can be provided with an exhaust device, for example, to release gases contained in the heat transfer medium within the thermostatic circuit. This improves heat transfer efficiency and facilitates better management of the heat transfer process.

[0050] Furthermore, the second temperature control line is isolated from the first temperature control line of the electric vehicle's air conditioning system. This design not only assists in temperature control of the power battery pack, but also prevents mixing of heat transfer media and the resulting contamination.

[0051] To further manage parameters such as the temperature and flow rate of the heat transfer medium in the temperature control line 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. The thermal management module 150 is configured to control the temperature and flow rate of the fluid in the second temperature control line based on acquired parameters associated with the power battery pack. The acquired parameters associated with the power battery pack may include, for example, the current power battery pack temperature, the current ambient temperature, and the desired power battery pack temperature, or the desired temperature and flow rate of the fluid in the second temperature control line. In other words, the thermal management module 150 can either calculate the desired target parameters, such as the desired temperature and flow rate of the fluid in the second temperature control line, based on raw parameters acquired from the electric vehicle side; or directly receive the desired temperature and flow rate of the fluid in the second temperature control line calculated by the electric vehicle side's computing unit from the electric vehicle side's communication unit. 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.

[0052] For example, when the power battery pack temperature is above 50 degrees Celsius, the target temperature of the heat transfer fluid in the second temperature control pipeline is set to 10 degrees Celsius, and the flow rate is set to 4 cubic meters per hour. When the power battery pack temperature is above 70 degrees Celsius, the target temperature of the heat transfer fluid in the second temperature control pipeline is set to 3 degrees Celsius, and the flow rate is set to 10 cubic meters per hour. Conversely, when the power battery pack temperature is below -5 degrees Celsius, the target temperature of the heat transfer fluid in the second temperature control pipeline is set to 30 degrees Celsius, and the flow rate is set to 4 cubic meters per hour. When the power battery pack temperature is below -20 degrees Celsius, the target temperature of the heat transfer fluid in the second temperature control pipeline is set to 50 degrees Celsius, and the flow rate is set to 10 cubic meters per hour.

[0053] Compared to 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 significantly 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, thereby improving 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 electric vehicle thermal management system, 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 electric vehicle thermal management system, thereby reducing the cost of the electric vehicle thermal management system. 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, thereby improving the design flexibility of the thermal management system of the electric vehicle.

[0054] By optimizing 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. In an extended sense, 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.

[0055] Although the various exemplary embodiments of the present disclosure described above can be implemented in hardware or dedicated circuits, the thermal management module 150 described above can be implemented in either hardware or software. This is because, in the 1990s, it was easy to determine whether a technical improvement was a hardware improvement (e.g., an improvement to a circuit structure such as a diode, transistor, or switch) or a software improvement (e.g., an improvement to a method flow). However, with the continuous development of technology, many method flow improvements today can almost all be implemented by programming the improved method flow into a hardware circuit. In other words, by programming different programs into the hardware circuit to obtain the corresponding hardware circuit structure, a change in the hardware circuit structure is achieved. Therefore, such method flow improvements can also be considered direct improvements to the hardware circuit structure. Therefore, it cannot be said that a method flow improvement cannot be implemented using a hardware entity module. For example, a programmable logic device (PLD) (e.g., a field programmable gate array (FPGA)) is such an integrated circuit whose 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, instead of manually fabricating integrated circuit chips, programming is now mostly done with "logic compiler" software. This is similar to the software compilers used when developing programs. Before compilation, the original code must be written in a specific programming language, called a hardware description language (HDL). There are many types of HDL, including 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, and RHDL (Ruby Hardware Description Language). Currently, the most commonly used are VHDL (Very-High-Speed ​​Integrated Circuit Hardware Description Language) and Verilog. Those skilled in the art will also understand that by simply programming the method flow in one of these hardware description languages ​​and then programming it into an integrated circuit, a hardware circuit that implements the logic method flow can be easily obtained. In other words, in general, the various example embodiments of the present disclosure can be implemented in hardware or dedicated circuitry, software, firmware, logic, or any combination thereof. Certain aspects can be implemented in hardware, while other aspects can be implemented in firmware or software that can 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 can be implemented in hardware, software, firmware, dedicated circuitry or logic, general-purpose hardware or a controller or other computing device, or some combination thereof, as non-limiting examples.

[0056] 2 and 3 , actual application scenarios of cooling and heating a power battery pack with the help of a charging pile are described below.

[0057] As can be seen in Figure 2, a charging pile for power battery packs can be upgraded from a traditional charging pile structure. In addition to comprising a main controller 210, a charging module 220, and a charging gun head 230, it also includes a temperature control component 260 and a corresponding controller, namely a battery thermal management module 250, to assist in temperature control of the power battery pack. The charging module 220 is electrically connected to and controlled by the main controller 210. The main controller 210 receives a charging request and possible control parameters, such as the target heat transfer medium temperature and flow rate, from, for example, a vehicle controller 291 on the electric vehicle side, in order to determine the charging pile's charging parameters, such as charging current and charging power. After determining the relevant charging parameters, the charging module 220 can provide the corresponding power to the charging gun head 230 to charge the power battery pack of the connected electric vehicle.

[0058] As previously mentioned, the technical solution disclosed in the present disclosure uniquely designs a temperature control component 260 and a corresponding controller (e.g., a battery thermal management module 250) for assisting in temperature control of the power battery pack. During specific manufacturing, the temperature control component 260 for assisting in temperature control of the power battery pack can be integrated with the charging gun head 230, for example, and it can include a fluid outlet and a fluid inlet. The heat transfer 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 control of the power battery pack on the electric vehicle side. The heat transfer medium, which has exchanged heat, re-enters the charging pile side through the fluid inlet for further temperature control to meet the temperature control requirements of the power battery pack. Of course, those skilled in the art will understand that a non-integrated, separate, independent heat transfer medium plug is also a feasible technical solution. In this case, it may be necessary to plug and unplug the charging and heat transfer separately. Here, the charging gun head 230 is connected to the high-voltage charging circuit 292 of the electric vehicle, and the temperature control component 260 for assisting in temperature control of the power battery pack is connected to the temperature control circuit 293 of the power battery pack of the 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.

[0059] In applications where the power battery pack needs to be heated, such as in winter or on snowy mountains, as shown in Figure 3, the charging station also includes a pulse current generator 390 to accelerate the heating process and facilitate charging. In addition, the basic components are also included. For example, a charging station for a power battery pack includes, in addition to a main controller 310, a charging module 320, and a charging gun head 330, an additional temperature control component 360 to assist in temperature control of the power battery pack, as well as a corresponding controller, namely a battery thermal management module 350. The charging module 320 is electrically connected to and controlled by the main controller 310. The main controller 310 receives a charging request and possible control parameters, such as the target heat transfer medium temperature and flow rate, from a vehicle controller 391 on the electric vehicle side, in order to determine the charging parameters of the charging station, such as charging current and charging power. After determining the relevant charging parameters, the charging module 320 can provide the corresponding power to the charging gun head 330 to charge the power battery pack of the connected electric vehicle.

[0060] As previously mentioned, the technical solution disclosed in the present disclosure uniquely designs a temperature control component 360 and a corresponding controller (e.g., a battery thermal management module 350) for assisting in temperature control of the power battery pack. During specific manufacturing, the temperature control component 360 for assisting in temperature control of the power battery pack can be integrated with the charging gun head 330, for example, and it can include a fluid outlet and a fluid inlet. The heat transfer 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 control of the power battery pack on the electric vehicle side. The heat transfer medium, which has exchanged heat, re-enters the charging pile side through the fluid inlet for further temperature control to meet the temperature control requirements of the power battery pack. Of course, those skilled in the art will understand that a non-integrated, separate, independent heat transfer medium plug is also a feasible technical solution. In this case, it may be necessary to plug and unplug the charging and heat transfer separately. Here, the charging gun head 330 is connected to the high-voltage charging circuit 392 of the electric vehicle, and the temperature control component 360 for assisting in temperature control of the power battery pack is connected to the temperature control circuit 393 of the power battery pack of the vehicle.

[0061] 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, the pulse current generator 390, electrically connected to the charging gun head 330, can be used to generate a pulse current to assist in heating the power battery pack. Preferably, the thermal management module 350 is further configured to control the pulse current generator 390 based on acquired parameters associated with the power battery pack, for example, via communication with the charging station's main controller 310. In this way, the pulse current generator 390 can be dynamically and specifically controlled based on the operating parameters of the power battery pack to achieve the desired temperature control effect. Preferably, the thermal management module 350 is further configured to activate the pulse current generator 390 when the temperature of the power battery pack falls below a first threshold (e.g., -10 degrees Celsius). In this way, the pulse current generator 390 can be activated when the pulse current generator 390 is needed to assist in heating the power battery pack. 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) that is 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) that is 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.

[0062] In the above figures, 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.

[0063] In addition to the charging pile, the present disclosure also proposes a power battery pack with an optimized heat conduction structure. Figure 4 shows an exemplary block diagram of a power battery pack according to another embodiment of the present disclosure. As can be seen from Figure 4, the second aspect of the present disclosure proposes a power battery pack, which is arranged in a vehicle, and the power battery pack 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, for example, have two conductive terminals 431 and 432; in addition, the power battery pack can also have a first temperature control pipeline 410, which is connected to the temperature control system of the vehicle. For the purpose of connectivity, the first temperature control pipeline 410 can have an outlet 411 and an inlet 412 for 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-conducting media and the occurrence of corresponding pollution.

[0064] 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.

[0065] 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 thermally conductive material. In this way, the second temperature regulating component can be directly connected to the power battery to achieve heat conduction, or it can be connected to the power battery via a thermally conductive material to further optimize the heat conduction effect.

[0066] Furthermore, a third aspect of the present disclosure provides a vehicle, comprising the power battery pack provided according to the second aspect of the present disclosure.

[0067] 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.

[0068] 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 within the spirit and scope of the appended claims. The scope of the claims is to be accorded the broadest interpretation so as to encompass 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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