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

Abstract

The invention discloses a charging and discharging identification module, a charging pile, a charging device and a discharging device. The charging and discharging identification module comprises a first resistor module, a first detection end and a signal processing module. The first end of the first resistor module is connected with the signal processing module, and the second end is grounded; the first detection end is connected with the first end of the first resistor module and the signal processing module and used for being connected with auxiliary detection resistor modules with different resistance values, and when the first plug is connected into the charging device or the discharging device, the first resistor module is connected with the auxiliary detection resistor modules in parallel; the signal processing module is used for outputting a charging indication signal or a discharging indication signal to the vehicle through the second plug according to the parallel signal, and judging whether the first plug is a charging device or a discharging device by identifying a resistance value after the first resistance module and the auxiliary detection resistance module are connected in parallel; the corresponding charging indication signal or discharging indication signal is output to the vehicle, the module complexity is reduced, the cost is reduced, and the charging and discharging identification reliability is improved.

Description

Technical Field

[0001] The present invention relates to the field of new energy technology, 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, the charging and discharging gun, as a key device for charging and discharging electric vehicles, has been increasingly widely used. In the use of the charging and discharging gun, accurate identification of the status and type of modules such as the discharge power strip and the 16A to 10A converter is crucial to ensure the safety and efficiency of the charging and discharging process. However, the existing identification system has many technical defects in practical applications and is difficult to meet the growing demand.

[0003] First, the existing identification system has a complex structure, usually containing a large number of electronic components and complex circuit design. This complex structure not only increases the manufacturing cost of the system, but also reduces the overall reliability of the system. Due to the large number of components and complex circuit design, the system is prone to failure in actual operation, affecting the stability and safety of the charging and discharging process.

[0004] Secondly, existing identification methods are usually cumbersome and require multiple complex calculations and judgments. This complex identification process leads to low recognition efficiency of the system and makes it difficult to meet the needs of rapid response. At the same time, due to the complex calculation and judgment process, the system is prone to misjudgment, which in turn affects the normal charging and discharging process and may even cause safety hazards.

[0005] In addition, most existing recognition systems use a single bus communication method, which is weak in anti-interference ability. In actual use environments, the system is very susceptible to external electromagnetic interference or other factors, resulting in distortion or interruption of communication signals, which in turn leads to misjudgment or recognition failure. This lack of anti-interference ability further limits the reliability and applicability of the recognition system. Summary of the invention

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

[0007] A charging and discharging 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; The first end of the first resistance module is connected to the signal processing module, and the second end of the first resistance module is grounded; The first detection end is connected to the first end of the first resistance module and the signal processing module, and is used to connect auxiliary detection resistance modules with different resistance values. When the first plug is connected to the charging device or the discharging device, the first resistance module is connected in parallel with the auxiliary detection resistance module; 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.

[0008] Furthermore, the auxiliary detection resistor module is arranged in the charging device and the discharging device, or in the first plug.

[0009] 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 used 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 used to output a temperature alarm signal to the vehicle when the temperature acquisition signal is abnormal.

[0010] Further, the signal processing module includes a first 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 used to output a charging indication signal or a discharging indication signal according to the filtering and amplifying the parallel signal.

[0011] A charging pile, comprising a first plug, a second plug and the above-mentioned charging and discharging identification module; 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.

[0012] A charging pile, comprising a first plug, a second plug and the above-mentioned charging and discharging identification module; 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 has a different resistance value; A permanent magnet is provided in the charging device or the discharging device; Each of the auxiliary detection resistor modules is connected in series with a magnetically controlled switch and is arranged between the first detection end and the ground; each of the magnetically controlled 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 is on the same axis as the magnetically controlled switch at the corresponding position, and the magnetically controlled switch is controlled to be turned on, and the auxiliary detection resistance module connected in series with the turned-on magnetically controlled switch is connected in parallel with the first resistance module.

[0013] A charging device comprises 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 of the charging pile; The charging device further includes an auxiliary detection resistor module and a second contact metal, 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 resistor module is connected in parallel with the auxiliary detection resistor module.

[0014] A charging device comprises 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 of the charging pile; The charging device further comprises a permanent magnet; when the first socket is connected to the first plug, the permanent magnet and the magnetically controlled switch at the first position in the first plug are on the same axis and control the magnetically controlled switch to be turned on.

[0015] A discharge device, comprising a second socket and a third socket; The second socket is used to connect to the first plug of the charging pile; The third socket is used to connect an electrical load; The discharge device further comprises an auxiliary detection resistor module and a second contact metal, 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 resistor module is connected in parallel with the auxiliary detection resistor module.

[0016] A discharge device, comprising a second socket and a third socket; The second socket is used to connect to the first plug of the charging pile; The third socket is used to connect an electrical load; The discharge device also includes a permanent magnet; when the second socket is connected to the first plug, the permanent magnet and the magnetically controlled switch at the second position of the first plug are on the same axis and control the magnetically controlled switch to be turned on.

[0017] The 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 the 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, including 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 is connected in parallel with the auxiliary detection resistor module; the signal processing module is used to connect to the second plug, and according to the parallel signal generated by the first resistor module and the auxiliary detection resistor module, a charging indication signal or a discharging indication signal is output to the vehicle through the second plug, so that by identifying the resistance value after the first resistor module and the auxiliary detection resistor module are connected in parallel, it is judged that the first plug connected is a charging device or a discharging device, and the corresponding charging indication signal or the discharging indication signal is output to the vehicle, thereby reducing the module complexity, reducing the cost, and improving the reliability of charge and discharge identification. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings required for use in the description of the embodiments of the present invention will be briefly introduced below. Obviously, the accompanying drawings in the following description are only some embodiments of the present invention. For ordinary technicians in this field, other accompanying drawings can be obtained based on these accompanying drawings without paying creative labor.

[0019] Figure 1 is a schematic diagram of a charge and discharge identification module in one embodiment of the present invention; Figure 2 It is a schematic diagram of a charging device, a discharging device and a charging pile in one embodiment of the present invention.

[0020] 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

[0021] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0022] It should be understood that the present invention can be implemented in different forms and should not be construed as being limited to the embodiments set forth herein. On the contrary, providing these embodiments will make the disclosure thorough and complete and fully convey the scope of the present invention to those skilled in the art. In the accompanying drawings, the sizes and relative sizes of layers and regions may be exaggerated for clarity. The same reference numerals throughout represent the same elements.

[0023] It should be understood that when an element or layer is referred to as being "on, adjacent to, connected to or coupled to other elements or layers, it may be directly on, adjacent to, connected to or coupled to other elements or layers, or there may be intervening elements or layers. In contrast, when an element is referred to as being "directly on, directly adjacent to, directly connected to or directly coupled to other elements or layers, 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 only used to distinguish one element, component, region, layer or part from another element, component, region, layer or part. Therefore, without departing from the teachings of the present invention, the first element, component, region, layer or part discussed below may be represented as a second element, component, region, layer or part.

[0024] Spatially relative terms such as "under," "beneath," "below," "under," "above," "above," and the like may be used herein for ease of description to describe the relationship of an 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 accompanying drawings is flipped, then the elements or features described as "under other elements" or "under" or "under" will be oriented as "above" the other elements or features. Thus, the exemplary terms "under" and "under" may include both upper and lower orientations. The device may be otherwise oriented (rotated 90 degrees or other orientations) and the spatial descriptors used herein are interpreted accordingly.

[0025] The purpose of the terms used herein is only to describe specific embodiments and is not intended to be limiting of the present invention. When used herein, the singular forms "one", "an" and "said / the" are also intended to include plural forms, unless the context clearly indicates otherwise. It should also be understood that the terms "consisting of" 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.

[0026] In order to fully understand the present invention, detailed structures and steps will be presented in the following description to illustrate the technical solutions proposed by the present invention. The preferred embodiments of the present invention are described in detail below, but in addition to these detailed descriptions, the present invention may also have other implementations.

[0027] 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 resistance module 111, a first detection end and a signal processing module 112; the first end of the first resistance module 111 is connected to the signal processing module 112, and the second end of the first resistance module 111 is grounded; the first detection end is connected to the first end of the first resistance module 111 and the signal processing module 112, and is used to connect auxiliary detection resistance 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 resistance module 111 is connected in parallel with the auxiliary detection resistance 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 resistance module 111 and the auxiliary detection resistance module 5.

[0028] Among them, the charging device 2 refers to a device for charging the vehicle. Exemplarily, the charging device 2 draws power from an external power source and charges the vehicle through the charging pile 1. Exemplarily, the charging device 2 includes a current conversion head, such as a 16A to 10A conversion head. The discharge device 3 refers to a device for discharging an electrical load. Exemplarily, the discharge device 3 is a discharge socket. The auxiliary detection resistor module 5 is arranged in the charging device 2 and the discharge device 3, or in the first plug 11.

[0029] Exemplarily, the first resistor module 111 may include one resistor or multiple resistors, and the multiple resistors may be connected in series and / or in parallel, and may be selected according to actual needs, and are not limited here. Exemplarily, the first resistor module 111 includes a first resistor R3.

[0030] Exemplarily, the auxiliary detection resistor module 5 may also include one resistor or multiple resistors, and the multiple resistors may be arranged in series and / or in parallel, and may be selected according to actual needs, and are not limited here. The auxiliary detection resistor module 5 may be arranged in the charging device 2 or the discharging device 3, or may be arranged in the first plug 11 of the charging pile 1, to ensure that the resistance values ​​of the auxiliary detection resistor module 5 are different, 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.

[0031] Exemplarily, the parallel signal includes the resistance value of the first resistance module 111 and the auxiliary detection resistance module 5 after being connected in parallel. As an example, since the first detection end is connected to the auxiliary detection resistance module 5 with different resistance values, when the charging device 2 and the discharging device 3 are connected to the first plug 11, the first resistance module 111 is connected in parallel with the auxiliary detection resistance module 5 with different resistance values, thereby generating parallel signals with different resistance values, so that the signal processing module 112 determines whether the charging device 2 or the discharging device 3 is currently connected according to different parallel signals, and outputs a charging indication signal or a discharging indication signal to the vehicle through the second plug 12, instructing the vehicle to perform charging and discharging operations.

[0032] 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, 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 the auxiliary detection resistor module 5 with different resistance values, and the first plug 11 is connected to the charging device 2 or the discharging device 3. When the discharge device 3 is connected, 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 the charging indication signal or the 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, so as to judge whether the first plug 11 connected is the charging device 2 or the discharging device 3 by identifying the resistance value after the first resistor module 111 and the auxiliary detection resistor module 5 are connected in parallel, and output the corresponding charging indication signal or the discharging indication signal to the vehicle, thereby reducing the module complexity, reducing the cost, and improving the reliability of charge and discharge identification.

[0033] In one embodiment, the charge and discharge identification module also includes a temperature detection module 113, which is disposed in the first plug 11 and connected to the signal processing module 112, and is used 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 also used to output a temperature alarm signal to the vehicle when the temperature collection signal is abnormal.

[0034] As an example, the temperature detection module 113 includes a thermistor RT1. The temperature detection module 113 is disposed in the first plug 11 to detect the temperature of the first plug 11, thereby being able to indirectly detect the temperature of the charging device 2 or the discharging device 3 connected to the first plug 11. The signal processing module 112 can determine whether the temperature corresponding to the temperature acquisition signal exceeds the preset temperature threshold according to the preset temperature threshold. When the temperature corresponding to the temperature acquisition signal exceeds the preset temperature threshold, the temperature acquisition signal is determined to be abnormal, and a temperature alarm signal is sent to the vehicle to perform a temperature abnormality alarm.

[0035] In one embodiment, the signal processing module 112 includes a first amplifying and filtering module 1121 and a main control module; the first amplifying 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.

[0036] Wherein, the main control module includes MCU.

[0037] 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.

[0038] Exemplarily, the first end of the resistor R5 is used to connect to the first power supply terminal CP3.3V, the second end of the resistor R5 is connected to the first end of the resistor R4, the second end of the resistor R4 is connected to the first detection terminal, and the connection node between the resistor R5 and the resistor R4 is connected to the non-inverting input terminal of the operational amplifier U1B. The resistor R6 and the resistor R7 are arranged in series between the output terminal of the operational amplifier U1B and the ground, and the connection node between the resistor R6 and the resistor R7 is connected to the inverting output terminal of the operational amplifier U1B.

[0039] 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.

[0040] Furthermore, the signal processing module 112 further includes a second amplifying and filtering module 1122 . The first amplifying and filtering module 1121 is connected to the temperature detection module 113 and is used for filtering and amplifying the temperature acquisition signal output by the temperature detection module 113 .

[0041] 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.

[0042] Exemplarily, the first end of the resistor R9 is used to connect to the first power supply terminal CP3.3V, the second end of the resistor R9 is connected to the first end of the resistor R8, the second end of the resistor R8 is connected to the temperature detection module 113, and the connection node between the resistor R9 and the resistor R8 is connected to the in-phase input terminal of the operational amplifier U1A. The resistor R12 and the resistor R11 are arranged in series between the output terminal of the operational amplifier U1A and the ground, and the connection node between the resistor R12 and the resistor R11 is connected to the inverting output terminal of the operational amplifier U1A. The output terminal of the operational amplifier U1A is connected to the main control module through the resistor R10.

[0043] The present embodiment provides a charging pile 1, comprising 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.

[0044] The first contact metal 114 is Figure 1 The auxiliary detection resistor module 5 includes the following Figure 1 The resistor RS1 is shown.

[0045] As an example, the first plug 11 is provided with an exposed first contact metal 114, which is connected to the first detection end. The charging device 2 or the discharging device 3 is provided with an exposed second contact metal 4, and 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, so that the first resistance module 111 is connected in parallel with the auxiliary detection resistor module 5. 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 resistance module 111 is connected in parallel with the auxiliary detection resistor module 5, thereby determining whether the charging device 2 or the discharging device 3 is currently connected.

[0046] It is understandable that the first contact metal 114 and the second contact metal 4 can be made of copper. Figure 1 The copper needle shown in .

[0047] 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, 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, 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 discharging device 3, and the implementation method is simple and the cost is low.

[0048] The present 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 magnetically controlled switch and at least two auxiliary detection resistor modules 5; each auxiliary detection resistor module 5 presents a different resistance value; a permanent magnet is arranged in the charging device 2 or the discharging device 3; each auxiliary detection resistor module 5 is arranged in series with a magnetically controlled switch between the first detection end and the ground; each magnetically controlled 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 magnetically controlled switch at the corresponding position are on the same axis, and the magnetically controlled switch is controlled to be turned on, and the auxiliary detection resistor module 5 connected in series with the turned-on magnetically controlled switch is connected in parallel with the first resistor module 111.

[0049] Among them, the first detection end is Figure 1 . Exemplarily, the auxiliary detection resistor module 5 includes the following Figure 1 The resistor RS2 is shown in FIG.

[0050] 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 shell surface of the charging device 2 or the discharging device 3 is less than 2 mm.

[0051] Exemplarily, magnetically controlled switches are provided at different positions in the first plug 11. Exemplarily, the first plug 11 includes two magnetically controlled switches and two auxiliary detection resistor modules 5. The two auxiliary detection resistor modules 5 present different resistance values. The two magnetically controlled switches are arranged away 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 magnetically controlled switches is arranged at the 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 arranged at the second position of the first plug 11, such as the right side, for matching the permanent magnet in the discharging device 3. It can be understood that the position of the permanent magnet in the charging device 2 or the discharging device 3 is set according to the position of the magnetically controlled switch in the first plug 11. When the magnetically controlled switch at the first position of the first plug 11 is turned on, the auxiliary detection resistor module 5 connected in series with the magnetically controlled switch at the first position is connected in parallel with the first resistor module 111, so that the signal processing module 112 recognizes the charging device 2. When the magnetically controlled switch at the second position of the first plug 11 is turned on, the auxiliary detection resistor module 5 connected in series with the magnetically controlled 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 .

[0052] 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 magnetic control switch and at least two auxiliary detection resistor modules 5; each auxiliary detection resistor module 5 presents a different resistance value; a permanent magnet is arranged 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 resistor module 111. By pre-embedding the permanent magnet in the charging device 2 or the discharging device 3, the auxiliary detection resistor module 5 and the magnetic control switch are arranged in the first plug 11, so as to be more suitable for the use environment with humidity and strong salt fog, which has the risk of corrosion and oxidation to the first contact metal 114 and the second contact metal 4.

[0053] 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 socket is connected to the first plug 11, the second contact metal 4 is in contact with the first contact metal 114, and the first resistor module 111 is connected in parallel with the auxiliary detection resistor module 5.

[0054] Exemplarily, 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.

[0055] As an example, the second contact metal 4 is arranged on the first socket. When the first socket is connected to the first plug 11, the second contact metal 4 contacts the first contact metal 114 of the first plug 11, so that the auxiliary detection resistance module 5 in the charging device 2 is connected in parallel with the first resistance module 111, and the signal processing module 112 identifies the charging device 2. It can be understood that the exposed position of the second contact metal 4 on the first 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 first socket is connected to the first plug 11.

[0056] 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 is in contact with 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, the structure is simple, the cost is low, and the integration of the charging device 2 is ensured.

[0057] 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.

[0058] 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 the magnetic control switch is controlled 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 according to the parallel signal.

[0059] In this embodiment, the auxiliary detection resistor module 5, the magnetically controlled 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, so as to reduce the volume of the charging device 2 and adapt to the use environment of humidity and strong salt fog, which may cause corrosion and oxidation risks to the first contact metal 114 and the second contact metal 4.

[0060] This embodiment provides a discharge device 3, including a second socket and a third socket; the second socket is used to connect the first plug 11 of the above-mentioned charging pile 1; the third socket is used to connect the power 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 is in contact with the first contact metal 114, and the first resistor module 111 is connected in parallel with the auxiliary detection resistor module 5.

[0061] The number of the third sockets may be one or more.

[0062] As an example, the second contact metal 4 is arranged 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, so that the auxiliary detection resistance module 5 in the discharge device 3 is connected in parallel with the first resistance module 111, and the signal processing module 112 identifies the discharge device 3. It can be 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.

[0063] In this embodiment, the discharge device 3 includes a second socket and a third socket; the second socket is used to connect the first plug 11 of the above-mentioned charging pile 1; the third socket is used to connect 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 is in contact with 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, the structure is simple, the cost is low, and the integration of the discharge device 3 is ensured.

[0064] This embodiment provides a discharge device 3, including a second socket and a third socket; the second socket is used to connect the first plug 11 of the above-mentioned charging pile 1; the third socket is used to connect the power load; the discharge device 3 also includes a permanent magnet; when the second socket is connected to the first plug 11, the permanent magnet and any one of the magnetically controlled switches are on the same axis and control the magnetically controlled switch to be turned on.

[0065] The number of the third sockets may be one or more.

[0066] 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, so as to reduce the volume of the discharge device 3 and adapt to the use environment with humidity and strong salt fog, which may cause corrosion and oxidation risks to the first contact metal 114 and the second contact metal 4.

[0067] 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 the technical solutions described in the aforementioned embodiments may still be modified, or some of the technical features may be replaced by equivalents. Such modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present invention, and should all be included in the protection scope 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 end and a signal processing module; The first end of the first resistance module is connected to the signal processing module, and the second end of the first resistance module is grounded; The first detection end is connected to the first end of the first resistance module and the signal processing module, and is used to connect auxiliary detection resistance modules with different resistance values. When the first plug is connected to the charging device or the discharging device, the first resistance module is connected in parallel with the auxiliary detection resistance module; 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.

2. The charge and discharge identification module according to claim 1, characterized in that: The auxiliary detection resistor module is arranged in the charging device and the discharging device, or in the first plug.

3. The charge and discharge identification module according to claim 1, characterized in that: 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 used 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 used to output a temperature alarm signal to the vehicle when the temperature acquisition signal is abnormal.

4. The charge and discharge identification module according to claim 1, characterized in that: The signal processing module includes a first 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 used to output a charging indication signal or a discharging indication signal according to the filtering and amplifying the parallel signal.

5. A charging pile, characterized in that: It comprises a first plug, a second plug and a charge and discharge identification module as claimed in any one of claims 1 to 4; 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.

6. A charging pile, characterized in that: It comprises a first plug, a second plug and a charge and discharge identification module as claimed in any one of claims 1 to 4; 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 presents a different resistance value; A permanent magnet is provided in the charging device or the discharging device; Each of the auxiliary detection resistor modules is connected in series with a magnetically controlled switch and is arranged between the first detection end and the ground; each of the magnetically controlled 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 is on the same axis as the magnetically controlled switch at the corresponding position, and the magnetically controlled switch is controlled to be turned on, and the auxiliary detection resistance module connected in series with the turned-on magnetically controlled switch is connected in parallel with the first resistance module.

7. 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 5; The charging device further includes an auxiliary detection resistor module and a second contact metal, 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 resistor module is connected in parallel with the auxiliary detection resistor module.

8. 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 6; The charging device further comprises a permanent magnet; when the first socket is connected to the first plug, the permanent magnet and the magnetically controlled switch at the first position in the first plug are on the same axis and control the magnetically controlled switch to be turned on.

9. A discharge device, characterized in that: including a second socket and a third socket; The second socket is used to connect the first plug of the charging pile according to claim 5; The third socket is used to connect an electrical load; The discharge device further comprises an auxiliary detection resistor module and a second contact metal, 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 resistor module is connected in parallel with the auxiliary detection resistor module.

10. A discharge device, characterized in that: including a second socket and a third socket; The second socket is used to connect the first plug of the charging pile according to claim 6; The third socket is used to connect an electrical load; The discharge device also includes a permanent magnet; when the second socket is connected to the first plug, the permanent magnet and the magnetically controlled switch at the second position of the first plug are on the same axis and control the magnetically controlled switch to be turned on.

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