Charging and discharging identification module, charging pile, charging device and discharging device

Abstract

The present invention discloses a charge and discharge identification module, a charging pile, a charging device and a discharging device. The charge and discharge identification module includes a first resistor module, a first detection end and a signal processing module; the first end of the first resistor module is connected to the signal processing module, and the second end is grounded; the first detection end is connected to the first end of the first resistor module and the signal processing module, and is used to connect auxiliary detection resistor modules with different resistance values. When a first plug is connected to a charging device or a discharging device, the first resistor module and the auxiliary detection resistor module are connected in parallel; the signal processing module outputs a charging indication signal or a discharging indication signal to a vehicle through a second plug according to a parallel signal, judges that the first plug connected is a charging device or a discharging device by identifying the resistance value of the first resistor module and the auxiliary detection resistor module after being connected in parallel, and outputs a corresponding charging indication signal or a discharging indication signal to the vehicle, thereby reducing module complexity, reducing costs, and improving charge and discharge identification reliability.

Description

Technical Field

[0001] The present invention relates to the field of new energy technologies, and in particular to a charge and discharge identification module, a charging pile, a charging device, and a discharging device. Background Art

[0002] With the rapid development of electric vehicles, integrated charging and discharging guns, as key equipment for EV charging and discharging, are finding increasingly widespread use. Accurately identifying the status and type of modules, such as power strips and 16A to 10A converters, is crucial for ensuring the safety and efficiency of the charging and discharging process. However, existing identification systems suffer from numerous technical deficiencies in practical applications, making them unable to meet this growing demand.

[0003] First, existing identification systems are complex, typically incorporating numerous electronic components and intricate circuit designs. This complexity not only increases manufacturing costs but also reduces overall reliability. Due to the large number of components and complex circuit design, the system is prone to failure during operation, impacting the stability and safety of the charging and discharging process.

[0004] Secondly, existing recognition methods are often cumbersome, requiring multiple complex calculations and judgments. This complex recognition process results in low system efficiency and makes it difficult to meet the demand for rapid response. Furthermore, due to the complex calculations and judgments, the system is prone to misjudgments, which can affect the normal charging and discharging process and even pose safety risks.

[0005] Furthermore, existing recognition systems often use a single-bus communication method, which exhibits limited anti-interference capabilities. In real-world environments, these systems are susceptible to external electromagnetic interference and other factors, leading to signal distortion or interruption, which in turn can cause misjudgments or recognition failures. This lack of anti-interference capability further limits the reliability and applicability of recognition systems. Summary of the Invention

[0006] The embodiments of the present invention provide a charge and discharge identification module, a charging pile, a charging device, and a discharging device to solve the problems of poor stability and safety of existing charge and discharge identification systems.

[0007] A charge and discharge identification module is applied to a first plug of a charging pile, wherein the first plug is used to connect a charging device or a discharging device, and the second plug of the charging pile is used to connect a vehicle, comprising a first resistance module, a first detection terminal and a signal processing module;

[0008] A first end of the first resistance module is connected to the signal processing module, and a second end of the first resistance module is grounded;

[0009] The first detection end is connected to the first end of the first resistor module and the signal processing module, and is used to connect auxiliary detection resistor modules with different resistance values. When the first plug is connected to the charging device or the discharging device, the first resistor module is connected in parallel with the auxiliary detection resistor module;

[0010] The signal processing module is used to connect to the second plug and output a charging indication signal or a discharging indication signal to the vehicle through the second plug according to the parallel signal generated by the first resistance module and the auxiliary detection resistance module.

[0011] Furthermore, the auxiliary detection resistor module is provided in the charging device and the discharging device, or in the first plug.

[0012] Furthermore, the charge and discharge identification module further includes a temperature detection module, which is disposed in the first plug and connected to the signal processing module, and is configured to collect the temperature of the first plug and output a temperature collection signal to the signal processing module;

[0013] The signal processing module is further configured to output a temperature alarm signal to the vehicle when the temperature acquisition signal is abnormal.

[0014] Furthermore, the signal processing module includes a first amplification and filtering module and a main control module;

[0015] The first amplification and filtering module is connected to the first detection end and is used to filter and amplify the parallel signal;

[0016] The main control module is used to amplify the parallel signal according to the filtering and output a charging indication signal or a discharging indication signal.

[0017] A charging pile, comprising a first plug, a second plug and the above-mentioned charge and discharge identification module;

[0018] The charge and discharge identification module is arranged in the first plug;

[0019] The first plug further includes a first contact metal, and the first contact metal is connected to the first detection end;

[0020] The auxiliary detection resistor module is arranged in the charging device or the discharging device; the resistance value of the auxiliary detection resistor module in the charging device is different from the resistance value of the auxiliary detection resistor module in the discharging device;

[0021] The charging device or the discharging device further includes a second contact metal; the second contact metal is grounded through the auxiliary detection resistor module;

[0022] When the first plug is connected to the charging device or the discharging device, the first contact metal contacts the second contact metal, and the first resistance module is connected in parallel with the auxiliary detection resistance module.

[0023] A charging pile comprising a first plug, a second plug and the above-mentioned charge and discharge identification module;

[0024] The charge and discharge identification module is arranged in the first plug;

[0025] The first plug further includes a magnetically controlled switch and at least two auxiliary detection resistor modules; each auxiliary detection resistor module exhibits a different resistance value;

[0026] A permanent magnet is provided in the charging device or the discharging device;

[0027] Each of the auxiliary detection resistor modules and a magnetic control switch is connected in series between the first detection terminal and the ground; each of the magnetic control switches is arranged at a different position;

[0028] When the first plug is connected to the charging device or the discharging device, the permanent magnet in the charging device or the discharging device and the magnetic control switch at the corresponding position are on the same axis, and the magnetic control switch is controlled to be turned on, and the auxiliary detection resistor module connected in series with the turned-on magnetic control switch is connected in parallel with the first resistor module.

[0029] A charging device comprising a power plug and a first socket;

[0030] The power plug is used to connect to an external power source;

[0031] The first socket is used to connect to the first plug of the charging pile;

[0032] The charging device further includes an auxiliary detection resistor module and a second contact metal, wherein a first end of the auxiliary detection resistor module is connected to the second contact metal, and a second end of the auxiliary detection resistor module is grounded;

[0033] When the first socket is connected to the first plug, the second contact metal contacts the first contact metal, and the first resistance module and the auxiliary detection resistance module are connected in parallel.

[0034] A charging device comprising a power plug and a first socket;

[0035] The power plug is used to connect to an external power source;

[0036] The first socket is used to connect to the first plug of the charging pile;

[0037] The charging device further includes a permanent magnet; when the first socket is connected to the first plug, the permanent magnet and the magnetic control switch at the first position in the first plug are on the same axis and control the magnetic control switch to be turned on.

[0038] A discharge device comprising a second socket and a third socket;

[0039] The second socket is used to connect to the first plug of the charging pile;

[0040] The third socket is used to connect an electrical load;

[0041] The discharge device further includes an auxiliary detection resistor module and a second contact metal, wherein a first end of the auxiliary detection resistor module is connected to the second contact metal, and a second end of the auxiliary detection resistor module is grounded;

[0042] When the second socket is connected to the first plug, the second contact metal contacts the first contact metal, and the first resistance module and the auxiliary detection resistance module are connected in parallel.

[0043] A discharge device comprising a second socket and a third socket;

[0044] The second socket is used to connect to the first plug of the charging pile;

[0045] The third socket is used to connect an electrical load;

[0046] The discharge device further includes a permanent magnet; when the second socket is connected to the first plug, the permanent magnet and the magnetic control switch at the second position in the first plug are on the same axis and control the magnetic control switch to be turned on.

[0047] An embodiment of the present invention provides a charge and discharge identification module, a charging pile, a charging device, and a discharging device. The charge and discharge identification module is applied to a first plug of a charging pile, the first plug is used to connect a charging device or a discharging device, and the second plug of the charging pile is used to connect a vehicle. The module includes a first resistor module, a first detection end, and a signal processing module; the first end of the first resistor module is connected to the signal processing module, and the second end of the first resistor module is grounded; the first detection end is connected to the first end of the first resistor module and the signal processing module, and is used to connect auxiliary detection resistor modules with different resistance values. When the first plug is connected to the charging device or the discharging device, the first resistor module and the auxiliary detection resistor module are connected in parallel; the signal processing module is used to connect to the second plug, and output a charging indication signal or a discharging indication signal to the vehicle through the second plug based on the parallel signal generated by the first resistor module and the auxiliary detection resistor module. By identifying the resistance value of the first resistor module after the auxiliary detection resistor module is connected in parallel, it is determined that the first plug connected is a charging device or a discharging device, and the corresponding charging indication signal or discharging indication signal is output to the vehicle, thereby reducing module complexity, reducing costs, and improving the reliability of charge and discharge identification. BRIEF DESCRIPTION OF THE DRAWINGS

[0048] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments of the present invention. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative labor.

[0049] Figure 1 is a schematic diagram of a charge and discharge identification module according to an embodiment of the present invention;

[0050] Figure 2 Schematic diagram of a charging device, a discharging device and a charging pile in one embodiment of the present invention.

[0051] In the figure: 1. Charging pile; 11. First plug; 111. First resistance module; 112. Signal processing module; 1121. First amplification and filtering module; 1122. Second amplification and filtering module; 113. Temperature detection module; 114. First contact metal; 12. Second plug; 2. Charging device; 3. Discharging device; 4. Second contact metal; 5. Auxiliary detection resistance module. DETAILED DESCRIPTION

[0052] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. All other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without making any creative efforts shall fall within the scope of protection of the present invention.

[0053] It should be understood that the present invention can be embodied in various forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided to make the disclosure thorough and complete and to fully convey the scope of the invention to those skilled in the art. In the drawings, the dimensions and relative dimensions of layers and regions may be exaggerated for clarity. Like reference numerals denote like elements throughout.

[0054] It should be understood that when an element or layer is referred to as being "on," "adjacent to," "connected to," or "coupled to" another element or layer, it may be directly on, adjacent to, connected to, or coupled to the other element or layer, or there may be intervening elements or layers. Conversely, when an element is referred to as being "directly on," "directly adjacent to," "directly connected to," or "directly coupled to" another element or layer, there may be no intervening elements or layers. It should be understood that although the terms first, second, third, etc. may be used to describe various elements, components, regions, layers, and / or parts, these elements, components, regions, layers, and / or parts should not be limited by these terms. These terms are merely used to distinguish one element, component, region, layer, or part from another element, component, region, layer, or part. Thus, a first element, component, region, layer, or part discussed below may be represented as a second element, component, region, layer, or part without departing from the teachings of the present invention.

[0055] Spatially relative terms such as "under," "beneath," "below," "under," "above," "above," etc., may be used herein for convenience of description to describe the relationship of one element or feature shown in the figures to other elements or features. It should be understood that the spatially relative terms are intended to include different orientations of the device in use and operation in addition to the orientations shown in the figures. For example, if the device in the drawings is flipped, then the elements or features described as "under" or "beneath" or "beneath" the other elements will be oriented as "over" the other elements or features. Thus, the exemplary terms "under" and "under" may include both the upper and lower orientations. The device may be oriented otherwise (rotated 90 degrees or in other orientations) and the spatial descriptors used herein are interpreted accordingly.

[0056] The purpose of the terms used herein is only to describe specific embodiments and is not intended to limit the present invention. When used herein, the singular forms "a", "an", and "the" are intended to include the plural forms, unless the context clearly indicates otherwise. It should also be understood that the terms "comprising" and / or "comprising", when used in this specification, determine the presence of the features, integers, steps, operations, elements and / or parts, but do not exclude the presence or addition of one or more other features, integers, steps, operations, elements, parts and / or groups. When used herein, the term "and / or" includes any and all combinations of the relevant listed items.

[0057] In order to fully understand the present invention, detailed structures and steps will be provided in the following description to illustrate the technical solutions proposed by the present invention. Preferred embodiments of the present invention are described in detail below. However, in addition to these detailed descriptions, the present invention may also have other implementations.

[0058] This embodiment provides a charge and discharge identification module, such as Figure 1 and Figure 2 As shown, in the first plug 11 used in the charging pile 1, the first plug 11 is used to connect the charging device 2 or the discharging device 3, and the second plug 12 of the charging pile 1 is used to connect the vehicle, including a first resistor module 111, a first detection end and a signal processing module 112; the first end of the first resistor module 111 is connected to the signal processing module 112, and the second end of the first resistor module 111 is grounded; the first detection end is connected to the first end of the first resistor module 111 and the signal processing module 112, and is used to connect auxiliary detection resistor modules 5 with different resistance values. When the first plug 11 is connected to the charging device 2 or the discharging device 3, the first resistor module 111 is connected in parallel with the auxiliary detection resistor module 5; the signal processing module 112 is used to connect the second plug 12, and output a charging indication signal or a discharging indication signal to the vehicle through the second plug 12 according to the parallel signal generated by the first resistor module 111 and the auxiliary detection resistor module 5.

[0059] The charging device 2 is a device used to charge the vehicle. Exemplarily, the charging device 2 draws power from an external power source and charges the vehicle via the charging station 1. Exemplarily, the charging device 2 includes a current converter, such as a 16A to 10A converter. The discharge device 3 is a device used to discharge the electrical load. Exemplarily, the discharge device 3 is a discharge socket. The auxiliary detection resistor module 5 is disposed within the charging device 2 and the discharge device 3, or within the first plug 11.

[0060] Exemplarily, the first resistor module 111 may include one resistor or multiple resistors, which may be connected in series and / or in parallel, and may be selected based on actual needs, without limitation herein. Exemplarily, the first resistor module 111 includes a first resistor R3.

[0061] For example, the auxiliary detection resistor module 5 may also include one or more resistors. The multiple resistors may be connected in series and / or in parallel, and may be selected based on actual needs, without limitation herein. The auxiliary detection resistor module 5 may be provided in the charging device 2 or the discharging device 3, or in the first plug 11 of the charging pile 1, ensuring that the auxiliary detection resistor module 5 has different resistance values, and when the first plug 11 is connected to the charging device 2 or the discharging device 3, the first resistor module 111 is connected in parallel with the auxiliary detection resistor module 5.

[0062] Exemplarily, the parallel signal includes the resistance value of the first resistor module 111 and the auxiliary detection resistor module 5 connected in parallel. As an example, since the first detection terminal is connected to auxiliary detection resistor modules 5 with different resistance values, when the charging device 2 and the discharging device 3 are connected to the first plug 11, the first resistor module 111 is connected in parallel with the auxiliary detection resistor modules 5 with different resistance values, thereby generating parallel signals with different resistance values. Based on the different parallel signals, the signal processing module 112 determines whether the charging device 2 or the discharging device 3 is currently connected, and outputs a charging instruction signal or a discharging instruction signal to the vehicle through the second plug 12, instructing the vehicle to perform charging and discharging operations.

[0063] In this embodiment, the charge and discharge identification module is applied to the first plug 11 of the charging pile 1. The first plug 11 is used to connect the charging device 2 or the discharging device 3. The second plug 12 of the charging pile 1 is used to connect the vehicle, including a first resistor module 111, a first detection end and a signal processing module 112; the first end of the first resistor module 111 is connected to the signal processing module 112, and the second end of the first resistor module 111 is grounded; the first detection end is connected to the first end of the first resistor module 111 and the signal processing module 112, and is used to connect the auxiliary detection resistor module 5 with different resistance values. When the first plug 11 is connected to the charging device 2 or the discharging device 3, the auxiliary detection resistor module 5 is connected to the first detection end of the charging pile 11. When the first plug 11 is connected to the discharge device 3, the first resistor module 111 is connected in parallel with the auxiliary detection resistor module 5; the signal processing module 112 is used to connect to the second plug 12, and output a charging indication signal or a discharging indication signal to the vehicle through the second plug 12 according to the parallel signal generated by the first resistor module 111 and the auxiliary detection resistor module 5. By identifying the resistance value after the first resistor module 111 and the auxiliary detection resistor module 5 are connected in parallel, it is determined that the first plug 11 is a charging device 2 or a discharging device 3, and output the corresponding charging indication signal or discharging indication signal to the vehicle, reducing module complexity, reducing costs, and improving the reliability of charge and discharge identification.

[0064] In one embodiment, the charge and discharge identification module further includes a temperature detection module 113 , which is disposed within the first plug 11 and connected to the signal processing module 112 . The temperature detection module 113 is configured to collect the temperature of the first plug 11 and output a temperature collection signal to the signal processing module 112 . The signal processing module 112 is further configured to output a temperature alarm signal to the vehicle when the temperature collection signal is abnormal.

[0065] As an example, the temperature detection module 113 includes a thermistor RT1. Disposed within the first plug 11, the temperature detection module 113 detects the temperature of the first plug 11, thereby indirectly detecting the temperature of the charging device 2 or discharging device 3 connected to the first plug 11. The signal processing module 112 can determine, based on a preset temperature threshold, whether the temperature corresponding to the temperature acquisition signal exceeds the preset threshold. If the temperature corresponding to the temperature acquisition signal exceeds the preset threshold, the temperature acquisition signal is determined to be abnormal and a temperature alarm signal is issued to the vehicle to warn of the temperature anomaly.

[0066] In one embodiment, the signal processing module 112 includes a first amplification and filtering module 1121 and a main control module; the first amplification and filtering module 1121 is connected to the first detection end and is used to filter and amplify the parallel signal; the main control module is used to output a charging indication signal or a discharging indication signal based on the filtered and amplified parallel signal.

[0067] The main control module includes an MCU.

[0068] As an example, the first amplifying and filtering module 1121 includes a resistor R4 , a resistor R5 , a resistor R6 , a resistor R7 and an operational amplifier U1B.

[0069] For example, the first end of resistor R5 is connected to the first power supply terminal CP3.3V, the second end of resistor R5 is connected to the first end of resistor R4, the second end of resistor R4 is connected to the first detection terminal, and the connection node between resistors R5 and R4 is connected to the non-inverting input terminal of operational amplifier U1B. Resistors R6 and R7 are connected in series between the output terminal of operational amplifier U1B and ground, and the connection node between resistors R6 and R7 is connected to the inverting output terminal of operational amplifier U1B.

[0070] In this embodiment, the first amplification and filtering module 1121 is connected to the first detection end and is used to filter and amplify the parallel signal; the main control module is used to output a charging indication signal or a discharging indication signal based on the filtered and amplified parallel signal, thereby filtering and amplifying the parallel signal to improve the accuracy and reliability of the parallel signal.

[0071] Furthermore, the signal processing module 112 further includes a second amplifying and filtering module 1122 . The second amplifying and filtering module 1122 is connected to the temperature detection module 113 and is configured to filter and amplify the temperature acquisition signal output by the temperature detection module 113 .

[0072] Exemplarily, the second amplifying and filtering module 1122 includes a resistor R8 , a resistor R9 , a resistor R11 , a resistor R12 , and an operational amplifier U1A.

[0073] Exemplarily, the first end of resistor R9 is used to connect to the first power supply terminal CP3.3V, the second end of resistor R9 is connected to the first end of resistor R8, the second end of resistor R8 is connected to the temperature detection module 113, and the connection node between resistors R9 and R8 is connected to the non-inverting input terminal of operational amplifier U1A. Resistors R12 and R11 are arranged in series between the output terminal of operational amplifier U1A and ground, and the connection node between resistors R12 and R11 is connected to the inverting output terminal of operational amplifier U1A. The output terminal of operational amplifier U1A is connected to the main control module through resistor R10.

[0074] This embodiment provides a charging pile 1, including a first plug 11, a second plug 12 and the above-mentioned charge and discharge identification module; the charge and discharge identification module is arranged in the first plug 11; the first plug 11 also includes a first contact metal 114, and the first contact metal 114 is connected to the first detection end; the auxiliary detection resistor module 5 is arranged in the charging device 2 or the discharging device 3; the resistance value of the auxiliary detection resistor module 5 in the charging device 2 is different from the resistance value of the auxiliary detection resistor module 5 in the discharging device 3; the charging device 2 or the discharging device 3 also includes a second contact metal 4; the second contact metal 4 is grounded through the auxiliary detection resistor module 5; when the first plug 11 is connected to the charging device 2 or the discharging device 3, the first contact metal 114 contacts the second contact metal 4, and the first resistor module 111 is connected in parallel with the auxiliary detection resistor module 5.

[0075] The first contact metal 114 is Figure 1 The auxiliary detection resistor module 5 includes the following Figure 1 The resistor RS1 is shown.

[0076] As an example, the first plug 11 is provided with an exposed first contact metal 114, which is connected to the first detection terminal. The charging device 2 or the discharging device 3 is provided with an exposed second contact metal 4, which is grounded through the auxiliary detection resistor module 5. When the first plug 11 is connected to the charging device 2 or the discharging device 3, the first contact metal 114 contacts the second contact metal 4, thereby connecting the first resistor module 111 and the auxiliary detection resistor module 5 in parallel. When auxiliary detection resistor modules 5 with different resistance values ​​are set in the charging device 2 or the discharging device 3, the signal processing module 112 in the charge and discharge identification module can identify the difference in the parallel signal after the first resistor module 111 and the auxiliary detection resistor module 5 are connected in parallel, thereby determining whether the charging device 2 or the discharging device 3 is currently connected.

[0077] It is understandable that the material of the first contact metal 114 and the second contact metal 4 can be copper. Figure 1 The copper needle shown in .

[0078] In this embodiment, the charging pile 1 includes a first plug 11, a second plug 12 and the above-mentioned charge and discharge identification module; the charge and discharge identification module is arranged in the first plug 11; the first plug 11 also includes a first contact metal 114, which is connected to the first detection end; the auxiliary detection resistor module 5 is arranged in the charging device 2 or the discharge device 3; the resistance value of the auxiliary detection resistor module 5 in the charging device 2 is different from the resistance value of the auxiliary detection resistor module 5 in the discharge device 3; the charging device 2 or the discharge device 3 also includes a second contact metal 4; the second contact metal 4 is grounded through the auxiliary detection resistor module 5; when the first plug 11 is connected to the charging device 2 or the discharge device 3, the first contact metal 114 contacts the second contact metal 4, and the first resistor module 111 is connected in parallel with the auxiliary detection resistor module 5, so that the charging pile 1 can identify the charging or discharging demand by pre-embedding the auxiliary detection resistor module 5 in the charging device 2 and the discharge device 3, and the implementation method is simple and the cost is low.

[0079] This embodiment provides a charging pile 1, which includes a first plug 11, a second plug 12 and the above-mentioned charge and discharge identification module; the charge and discharge identification module is arranged in the first plug 11; the first plug 11 also includes a magnetic control switch and at least two auxiliary detection resistor modules 5; each auxiliary detection resistor module 5 has a different resistance value; a permanent magnet is provided in the charging device 2 or the discharging device 3; each auxiliary detection resistor module 5 is arranged in series with a magnetic control switch between the first detection end and the ground; each magnetic control switch is arranged at a different position; when the first plug 11 is connected to the charging device 2 or the discharging device 3, the permanent magnet and the magnetic control switch at the corresponding position are on the same axis, and the magnetic control switch is controlled to be turned on, and the auxiliary detection resistor module 5 connected in series with the turned-on magnetic control switch is connected in parallel with the first resistance module 111.

[0080] Among them, the first detection end is Figure 1 For example, the auxiliary detection resistor module 5 includes the following Figure 1 The resistor RS2 is shown in FIG.

[0081] As an example, a permanent magnet is embedded in the charging device 2 or the discharging device 3. The diameter of the permanent magnet ranges from 4 mm to 6 mm, preferably 5 mm. The distance between the permanent magnet and the outer surface of the charging device 2 or the discharging device 3 is less than 2 mm.

[0082] Exemplarily, magnetic switches are positioned at different locations within the first plug 11. Exemplarily, the first plug 11 includes two magnetic switches and two auxiliary detection resistor modules 5. The two auxiliary detection resistor modules 5 exhibit different resistance values. The two magnetic switches are positioned remotely from each other, one for matching the permanent magnet in the charging device 2, and the other for matching the permanent magnet in the discharging device 3. For example, one of the two magnetic switches is positioned at a first position of the first plug 11, such as the left side, for matching the permanent magnet in the charging device 2; the other is positioned at a second position of the first plug 11, such as the right side, for matching the permanent magnet in the discharging device 3. It is understood that the position of the permanent magnet in the charging device 2 or the discharging device 3 is determined by the position of the magnetic switch in the first plug 11. When the magnetic switch in the first position of the first plug 11 is turned on, the auxiliary detection resistor module 5, which is connected in series with the magnetic switch in the first position, is connected in parallel with the first resistor module 111, thereby enabling the signal processing module 112 to identify the charging device 2. When the magnetic switch at the second position of the first plug 11 is turned on, the auxiliary detection resistor module 5 connected in series with the magnetic switch at the second position is connected in parallel with the first resistor module 111 , so that the signal processing module 112 recognizes the discharge device 3 .

[0083] In this embodiment, the charging pile 1 includes a first plug 11, a second plug 12, and the aforementioned charge and discharge identification module; the charge and discharge identification module is disposed within the first plug 11; the first plug 11 also includes a magnetically controlled switch and at least two auxiliary detection resistor modules 5; each auxiliary detection resistor module 5 exhibits a different resistance value; a permanent magnet is disposed within the charging device 2 or the discharging device 3; each auxiliary detection resistor module 5 is disposed in series with a magnetically controlled switch between the first detection terminal and ground; each magnetically controlled switch is disposed at a different position; when the first plug 11 is connected to the charging device 2 or the discharging device 3, the permanent magnet and the magnetically controlled switch at the corresponding position are coaxial, controlling the magnetically controlled switch to conduct, and the auxiliary detection resistor module 5, which is connected in series with the conducted magnetically controlled switch, is connected in parallel with the first resistor module 111. By pre-embedding the permanent magnet within the charging device 2 or the discharging device 3 and disposing the auxiliary detection resistor module 5 and the magnetically controlled switch within the first plug 11, the charging pile 11 is more adaptable to use in environments with humidity and high salt spray, which pose a risk of corrosion and oxidation to the first contact metal 114 and the second contact metal 4.

[0084] This embodiment provides a charging device 2, including a power plug and a first socket; the power plug is used to connect to an external power source; the first socket is used to connect to the first plug 11 of the above-mentioned charging pile 1; the charging device 2 also includes an auxiliary detection resistor module 5 and a second contact metal 4, the first end of the auxiliary detection resistor module 5 is connected to the second contact metal 4, and the second end of the auxiliary detection resistor module 5 is grounded; when the first plug 11 is connected to the first socket, the second contact metal 4 contacts the first contact metal 114, and the first resistor module 111 is connected in parallel with the auxiliary detection resistor module 5.

[0085] For example, the external power source may be a mains power source or a photovoltaic power source. The power plug is used to connect to an external power socket.

[0086] As an example, the second metal contact 4 is provided on the first socket. When the first socket is connected to the first plug 11, the second metal contact 4 contacts the first metal contact 114 of the first plug 11, connecting the auxiliary detection resistor module 5 in the charging device 2 in parallel with the first resistor module 111, and the signal processing module 112 identifies the charging device 2. It is understood that the exposed position of the second metal contact 4 on the first socket and the exposed position of the first metal contact 114 in the first plug 11 can be set according to actual needs to ensure that the second metal contact 4 contacts the first metal contact 114 when the first socket is connected to the first plug 11.

[0087] In this embodiment, the charging device 2 includes a power plug and a first socket; the power plug is used to connect to an external power source; the first socket is used to connect to the first plug 11 of the above-mentioned charging pile 1; the charging device 2 also includes an auxiliary detection resistor module 5 and a second contact metal 4, the first end of the auxiliary detection resistor module 5 is connected to the second contact metal 4, and the second end of the auxiliary detection resistor module 5 is grounded; when the first plug 11 is connected to the first socket, the second contact metal 4 contacts the first contact metal 114, and the first resistor module 111 is connected in parallel with the auxiliary detection resistor module 5, so that the charging pile 1 can automatically identify the charging device 2, with a simple structure and low cost, ensuring the integration of the charging device 2.

[0088] This embodiment provides a charging device 2, including a power plug and a first socket; the power plug is used to connect to an external power source; the first socket is used to connect to the first plug 11 of the above-mentioned charging pile 1; the charging device 2 also includes a permanent magnet; when the first socket is connected to the first plug 11, the permanent magnet and the magnetic control switch at the first position in the first plug 11 are on the same axis, and control the magnetic control switch to be turned on.

[0089] As an example, the charging device 2 includes a power plug and a first socket; the power plug is used to connect to an external power source; the first socket is used to connect to the first plug 11 of the above-mentioned charging pile 1; the charging device 2 also includes a permanent magnet; when the first socket is connected to the first plug 11, the permanent magnet and the magnetic control switch at the first position in the first plug 11 are on the same axis, and control the magnetic control switch to be turned on, so that the auxiliary detection resistor module 5 connected in series with the magnetic control switch at the first position is connected in parallel with the first resistor module 111, and the signal processing module 112 identifies the charging device 2 based on the parallel signal.

[0090] In this embodiment, the auxiliary detection resistor module 5, the magnetic control switch and the first resistor module 111 are all arranged in the first plug 11, and only the permanent magnet is arranged in the charging device 2, thereby reducing the volume of the charging device 2 and being able to adapt to the use environment of humidity and high salt fog, which may cause corrosion and oxidation risks to the first contact metal 114 and the second contact metal 4.

[0091] This embodiment provides a discharge device 3, including a second socket and a third socket; the second socket is used to connect to the first plug 11 of the above-mentioned charging pile 1; the third socket is used to connect to the electrical load; the discharge device 3 also includes an auxiliary detection resistor module 5 and a second contact metal 4, the first end of the auxiliary detection resistor module 5 is connected to the second contact metal 4, and the second end of the auxiliary detection resistor module 5 is grounded; when the second socket is connected to the first plug 11, the second contact metal 4 contacts the first contact metal 114, and the first resistor module 111 is connected in parallel with the auxiliary detection resistor module 5.

[0092] The number of the third sockets may be one or more.

[0093] As an example, the second contact metal 4 is provided on the second socket. When the second socket is connected to the first plug 11, the second contact metal 4 contacts the first contact metal 114 of the first plug 11, connecting the auxiliary detection resistor module 5 in the discharge device 3 in parallel with the first resistor module 111, and the signal processing module 112 identifies the discharge device 3. It is understood that the exposed position of the second contact metal 4 on the second socket and the exposed position of the first contact metal 114 in the first plug 11 can be set according to actual needs to ensure that the second contact metal 4 contacts the first contact metal 114 when the second socket is connected to the first plug 11.

[0094] In this embodiment, the discharge device 3 includes a second socket and a third socket; the second socket is used to connect to the first plug 11 of the above-mentioned charging pile 1; the third socket is used to connect to the electrical load; the discharge device 3 also includes an auxiliary detection resistor module 5 and a second contact metal 4, the first end of the auxiliary detection resistor module 5 is connected to the second contact metal 4, and the second end of the auxiliary detection resistor module 5 is grounded; when the second socket is connected to the first plug 11, the second contact metal 4 contacts the first contact metal 114, and the first resistor module 111 is connected in parallel with the auxiliary detection resistor module 5, so that the charging pile 1 can automatically identify the discharge device 3, with a simple structure and low cost, ensuring the integration of the discharge device 3.

[0095] This embodiment provides a discharge device 3, including a second socket and a third socket; the second socket is used to connect to the first plug 11 of the above-mentioned charging pile 1; the third socket is used to connect to the electrical load; the discharge device 3 also includes a permanent magnet; when the second socket is connected to the first plug 11, the permanent magnet is on the same axis as any one of the magnetic control switches and controls the magnetic control switch to be turned on.

[0096] The number of the third sockets may be one or more.

[0097] In this embodiment, the auxiliary detection resistance module 5, the magnetically controlled switch and the first resistance module 111 are all arranged in the first plug 11, and only the permanent magnet is arranged in the discharge device 3, thereby reducing the volume of the discharge device 3 and being able to adapt to the use environment where humidity and high salt fog pose a risk of corrosion and oxidation to the first contact metal 114 and the second contact metal 4.

[0098] The embodiments described above are only used to illustrate the technical solutions of the present invention, rather than to limit the same. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. These modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the various embodiments of the present invention, and should all be included in the scope of protection of the present invention.

Claims

1. A charge and discharge identification module, characterized in that: Applied in a first plug of a charging pile, the first plug is used to connect a charging device or a discharging device, and the second plug of the charging pile is used to connect a vehicle, comprising a first resistance module, a first detection terminal and a signal processing module; A first end of the first resistance module is connected to the signal processing module, and a second end of the first resistance module is grounded; The first detection end is connected to the first end of the first resistor module and the signal processing module, and is used to connect auxiliary detection resistor modules with different resistance values. When the first plug is connected to the charging device or the discharging device, the first resistor module is connected in parallel with the auxiliary detection resistor module; The auxiliary detection resistor module is arranged in the charging device and the discharging device, or in the first plug; The signal processing module is configured to be connected to the second plug and output a charging indication signal or a discharging indication signal to the vehicle through the second plug according to the parallel signal generated by the first resistance module and the auxiliary detection resistance module; The charge and discharge identification module further includes a temperature detection module, which is disposed in the first plug and connected to the signal processing module, and is configured to collect the temperature of the first plug and output a temperature collection signal to the signal processing module; The signal processing module is further configured to output a temperature alarm signal to the vehicle when the temperature acquisition signal is abnormal; The signal processing module includes a first amplification and filtering module, a second amplification and filtering module and a main control module; The first amplification and filtering module is connected to the first detection end and is used to filter and amplify the parallel signal; The main control module is configured to output a charging indication signal or a discharging indication signal according to the filtering and amplifying of the parallel signal; The second amplifying and filtering module is connected to the temperature detecting module and is used to filter and amplify the temperature acquisition signal output by the temperature detecting module.

2. A charging pile, characterized in that: comprising a first plug, a second plug and the charge and discharge identification module according to claim 1; The charge and discharge identification module is arranged in the first plug; The first plug further includes a first contact metal, and the first contact metal is connected to the first detection end; The auxiliary detection resistor module is arranged in the charging device or the discharging device; The resistance value of the auxiliary detection resistor module in the charging device is different from the resistance value of the auxiliary detection resistor module in the discharging device; The charging device or the discharging device further includes a second contact metal; the second contact metal is grounded through the auxiliary detection resistor module; When the first plug is connected to the charging device or the discharging device, the first contact metal contacts the second contact metal, and the first resistance module is connected in parallel with the auxiliary detection resistance module.

3. A charging pile, characterized in that: comprising a first plug, a second plug and the charge and discharge identification module according to claim 1; The charge and discharge identification module is arranged in the first plug; The first plug further includes a magnetically controlled switch and at least two auxiliary detection resistor modules; Each of the auxiliary detection resistor modules exhibits a different resistance value; A permanent magnet is provided in the charging device or the discharging device; Each of the auxiliary detection resistor modules and a magnetic control switch is connected in series between the first detection terminal and the ground; each of the magnetic control switches is arranged at a different position; When the first plug is connected to the charging device or the discharging device, the permanent magnet in the charging device or the discharging device and the magnetic control switch at the corresponding position are on the same axis, and the magnetic control switch is controlled to be turned on, and the auxiliary detection resistor module connected in series with the turned-on magnetic control switch is connected in parallel with the first resistor module.

4. A charging device, characterized in that: including a power plug and a first socket; The power plug is used to connect to an external power source; The first socket is used to connect the first plug of the charging pile according to claim 2; The charging device further includes an auxiliary detection resistor module and a second contact metal, wherein a first end of the auxiliary detection resistor module is connected to the second contact metal, and a second end of the auxiliary detection resistor module is grounded; When the first socket is connected to the first plug, the second contact metal contacts the first contact metal, and the first resistance module and the auxiliary detection resistance module are connected in parallel.

5. A charging device, characterized in that: including a power plug and a first socket; The power plug is used to connect to an external power source; The first socket is used to connect the first plug of the charging pile according to claim 3; The charging device further includes a permanent magnet; when the first socket is connected to the first plug, the permanent magnet and the magnetic control switch at the first position in the first plug are on the same axis and control the magnetic control switch to be turned on.

6. A discharge device, characterized in that: including a second socket and a third socket; The second socket is used to connect to the first plug of the charging pile according to claim 2; The third socket is used to connect an electrical load; The discharge device further includes an auxiliary detection resistor module and a second contact metal, wherein a first end of the auxiliary detection resistor module is connected to the second contact metal, and a second end of the auxiliary detection resistor module is grounded; When the second socket is connected to the first plug, the second contact metal contacts the first contact metal, and the first resistance module and the auxiliary detection resistance module are connected in parallel.

7. A discharge device, characterized in that: including a second socket and a third socket; The second socket is used to connect to the first plug of the charging pile according to claim 3; The third socket is used to connect an electrical load; The discharge device further includes a permanent magnet; when the second socket is connected to the first plug, the permanent magnet and the magnetic control switch at the second position in the first plug are on the same axis and control the magnetic control switch to be turned on.

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