Multi-power charging timing device for public charging pile

Abstract

The utility model discloses a multi-power charging timing device for a public charging pile, which relates to the technical field of charging piles and comprises a charging pile body. An overload protector, a short circuit protector, an electric energy metering module, a leakage protector and a direct current quick charger which are electrically connected in sequence are fixedly arranged in the charging pile body; a charging gun electrically connected with the direct-current quick charger is installed outside the charging pile body. A microprocessor electrically connected with the electric energy metering module is also arranged in the charging pile body; the microprocessor is electrically connected with a real-time clock module arranged in the charging pile body; a touch screen is further fixedly installed on the outer side of the charging pile body and electrically connected with the microprocessor. The charging gun has the advantages that the overload protector, the short-circuit protector, the electric energy metering module, the leakage protector and the direct-current quick charger are sequentially adopted to supply power to the charging gun finally, the characteristics of safety and high efficiency can be provided, and the use experience of a charging user can be improved.

Description

Technical Field

[0001] The utility model relates to the technical field of charging piles, and more specifically to a multi-power charging timing device for a public charging pile. Background Art

[0002] Public charging piles for cars refer to facilities set up in public places for electric car users to provide charging services. These charging piles are usually built and operated by the government, enterprises or relevant institutions to meet the charging needs of new energy vehicle users, improve the convenience of electric car use, and promote the development of green travel.

[0003] Public charging piles are generally installed in places such as shopping malls, parking lots, highway service areas, residential areas, office areas, etc., which are convenient for vehicles to park and have sufficient power supply, and provide two charging modes: fast charging and slow charging. Car owners only need to pay the fee through mobile phone APP, scan code payment, etc., to charge their electric vehicles (such as application number: CN201810817420.7, a new energy vehicle charging time and fee management system);

[0004] To provide the timing and charging functions of the charging pile and the coordinated use of multiple powers, an electric energy metering module is generally required (such as application number: CN202121222139.2, a plug-in installed electric energy metering module); at the same time, in order to ensure safety, safety components are also provided (such as application number: CN201320536253.1, an AC / DC fast charging pile using a battery charging method). The "fuse" used therein, but the charging pile using only the above components is still insufficient in terms of efficiency and safety. Utility Model Content

[0005] The purpose of the utility model is to solve the above technical problems and provide a multi-power charging timing device for a public charging pile.

[0006] In order to achieve the above-mentioned purpose, the utility model specifically adopts the following technical solutions:

[0007] The utility model proposes a multi-power charging timing device for a public charging pile, comprising a charging pile body;

[0008] The charging pile body is fixed with an overload protector, a short circuit protector, an electric energy metering module, a leakage protector and a DC fast charger which are electrically connected in sequence;

[0009] A charging gun electrically connected to the DC fast charger is installed outside the charging pile body;

[0010] The charging pile body is also provided with a microprocessor electrically connected to the electric energy metering module, and the microprocessor is electrically connected to a real-time clock module provided in the charging pile body;

[0011] A touch screen is also fixedly mounted on the outside of the charging pile body, and the touch screen is electrically connected to the microprocessor.

[0012] As a preferred technical solution of the present utility model, a storage module electrically connected to the microprocessor is also provided in the charging pile body.

[0013] As a preferred technical solution of the utility model, a circuit board is fixedly installed in the charging pile body, and the real-time clock module, microprocessor and storage module are all installed on the circuit board. The microprocessor is electrically connected to the power metering module and the touch screen respectively through the circuit board.

[0014] As a preferred technical solution of the present utility model, at least one set of ventilation components is provided on the charging pile body.

[0015] As a preferred technical solution of the utility model, the ventilation component includes a through opening connecting the inside and outside of the charging pile body, a ring plate is fixedly installed in the through opening, the ring plate has an inner cavity and a moisture absorbing layer is arranged inside, air holes connected to the inner cavity are arranged outside the ring plate, and a dustproof layer is fixed inside the ring cavity of the ring plate.

[0016] As a preferred technical solution of the utility model, the air holes are provided in multiple groups and are evenly distributed on the outer side of the ring plate.

[0017] The beneficial effects of the utility model are as follows:

[0018] By using the overload protector 2, the short circuit protector 3, the power metering module 4, the leakage protector 5 and the DC fast charger 6 in sequence to provide the final power supply for the charging gun 7, the short circuit protector 3, the power metering module 4 and the leakage protector 5 can obtain extremely high safety protection functions; the power metering module 4 used in conjunction with the real-time clock module can accurately measure and record the power consumed by the electric vehicle during the charging process, providing a basis for billing; the DC fast charger 6 can greatly shorten the charging time of the electric vehicle and improve the charging efficiency; in summary, it provides safe and efficient characteristics, which is conducive to improving the user experience of charging users. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a structural schematic diagram of the utility model;

[0020] Figure 2 It is a schematic diagram of the top view structure of the utility model;

[0021] Figure 3 It is a schematic diagram of a local structure of a top view section of the utility model.

[0022] Figure numerals: charging pile body -1, overload protector -2, short circuit protector -3, electric energy metering module -4, leakage protector -5, DC fast charger -6, charging gun -7, microprocessor -8, storage module -9, touch screen -10, circuit board -11, ventilation component -12, port -121, ring plate -122, moisture absorption layer -123, air hole -124, dustproof layer -125. DETAILED DESCRIPTION

[0023] Embodiment 1:

[0024] like Figures 1 to 3 As shown, this embodiment proposes: a multi-power charging timing device for a public charging pile, including a charging pile body 1, which is connected to an external power source (usually refers to the alternating current provided by the power grid);

[0025] The charging pile body 1 is fixed with an overload protector 2, a short circuit protector 3, an electric energy metering module 4, a leakage protector 5 and a DC fast charger 6 which are electrically connected in sequence, and the overload protector 2 is connected by the above-mentioned external power supply to supply power in sequence;

[0026] The electric energy metering module 4 is placed after the overload protector 2 and the short-circuit protector 3 are powered, which provides good protection and safety. At the same time, it can accurately measure: because the electric energy metering module 4 is located at the front end of the power supply line, it can accurately measure all the electric energy input from the power grid to the charging pile body 1, providing a true and reliable data basis for subsequent billing, and avoiding the measurement error caused by the loss of other electrical components;

[0027] Overload protector 2: can be an intelligent circuit breaker or a fuse {can be a fast-acting or time-delayed type, such as small fuses of the NT (general purpose) and NH (high breaking capacity) series under the IEC 60269 standard, such as NT00, NT1, NH1, NH2, etc.; preferably, a DC fuse with a larger rated current, such as a high-current fuse mounted on a DC DIN rail}, which automatically cuts off the circuit when it detects that the current exceeds a preset threshold, to prevent equipment damage or fire risk caused by overload;

[0028] Short circuit protector 3: It can also be an intelligent circuit breaker or a fuse {fast action or delayed type can be adopted, such as small fuses have NT (general purpose) and NH (high breaking capacity) series under IEC 60269 standard, such as NT00, NT1, NH1, NH2, etc.; preferably, a DC fuse with a larger rated current, such as a high current fuse mounted on a DC DIN rail}, once a short circuit is detected in the circuit, the power supply is immediately cut off to ensure the circuit safety;

[0029] Leakage protector 5: Mainly rely on leakage protection switch or leakage circuit breaker {can be: common miniature circuit breaker (MCB) with residual current protection function and residual current operated protection circuit breaker (RCD), such as different types of RCDs such as type A, type B, type AC, type F, etc. that comply with IEC 61009 standard}. When leakage is detected in the circuit (i.e., the current imbalance between the live wire and the neutral wire), the power supply is quickly cut off to avoid electric shock;

[0030] DC fast charger 6 (such as State Grid electric vehicle DC charging equipment: ZC-DC090 / 120 / 180, etc.): is a charging device specifically used to provide DC power to electric vehicles (EVs); it converts AC power input from the power grid into high-voltage DC power and directly charges the power battery of the electric vehicle, thereby achieving the purpose of fast charging;

[0031] A charging gun 7 electrically connected to a DC fast charger 6 is installed outside the charging pile body 1, providing safe and efficient characteristics, which is conducive to improving the user experience of charging users;

[0032] The charging pile body 1 is also provided with a microprocessor 8 electrically connected to the electric energy metering module 4. The microprocessor 8 is electrically connected to a real-time clock module (the real-time clock module can be an I2C interface RTC module: such as DS3231, PCF8563, etc., which communicates with the charging pile main control chip through the I2C bus and has the characteristics of high precision and low power consumption) provided in the charging pile body 1. Under the information processing of the microprocessor 8, the power consumed by the electric vehicle during the charging process is accurately measured and recorded under the timing condition (providing that monitoring and calculation can be performed when different powers are generated by charging);

[0033] A touch screen 10 is also fixedly mounted on the outside of the charging pile body 1. The touch screen 10 is electrically connected to the microprocessor 8. The touch screen 10 provides the operation functions of the existing human-computer interaction interface, such as Figure 1 As shown, the operation includes hardware devices such as a touch screen 10, buttons, indicator lights, and corresponding software interface designs displayed on the touch screen 10;

[0034] The functions of the human-computer interaction interface are as follows (existing technology):

[0035] Display information: Real-time display of charging status (such as charging, charging completed, etc.), remaining charging time, charged capacity, estimated charging cost and other related data;

[0036] Input command: allows users to set and adjust charging parameters through the operation panel, such as selecting charging mode (fast charging, slow charging, etc.), presetting charging power or amount, etc.;

[0037] Providing feedback: During the charging process, if an abnormality or important event occurs (such as charging completion, charging interruption, etc.), the touch screen 10 will prompt the user by displaying information or warnings, etc.;

[0038] The charging pile body 1 is also provided with a storage module 9 electrically connected to the microprocessor 8 for storing data (the storage module 9 is a charging control unit (TCU / CCU) storage module, which is responsible for recording and processing all data related to charging transactions, such as user information, charging time, charging amount, fee calculation, etc., and also stores operation and maintenance data such as equipment operation status and fault records);

[0039] The charging pile body 1 is fixed with a circuit board 11, on which the real-time clock module, the microprocessor 8 and the storage module 9 are all mounted. The microprocessor 8 is electrically connected to the electric energy metering module 4 and the touch screen 10 through the circuit board 11 (eg Figure 3 , that is, a circuit board 11 is additionally provided to simultaneously house a real-time clock module, a microprocessor 8 and a storage module 9 fixed by soldering, etc., for easy installation);

[0040] The electric energy metering module 4 described in this patent is an existing component structure, specifically: a current transformer (CT), a voltage transformer (PT), an electric energy metering chip (or a dedicated processor for an electric energy meter), a storage unit, and an interface;

[0041] Current transformer (CT): used to detect the current in the line, by converting the large current on the line into a small current suitable for secondary equipment to handle;

[0042] Voltage transformer (PT): used to detect the voltage level in the line and convert the voltage signal of the high-voltage circuit into a low-voltage, standard voltage signal;

[0043] Electric energy metering chip (or dedicated processor for electric energy meter): responsible for sampling, calculating and processing current and voltage signals to achieve accurate measurement of active power, reactive power, apparent power, electric energy and other parameters;

[0044] Storage unit: used to store various types of power data, such as accumulated power, maximum demand, historical records, etc.;

[0045] Interface: Provide communication interface, such as RS485, infrared, carrier, micro-power wireless, etc., to facilitate data interaction with the host computer system.

[0046] Embodiment 2:

[0047] like Figure 3 As shown, the difference from Example 1 is that: it also includes that at least one group of ventilation components 12 is provided on the charging pile body 1 for ventilation and air permeability to provide heat exchange effect.

[0048] In order to realize the implementation and use of the above-mentioned ventilation assembly 12, it is proposed that Figure 3 As shown, the specific structure and composition of the ventilation component 12 can be as follows: the ventilation component 12 includes a through hole 121 connecting the inside and outside of the charging pile body 1, and penetrates through the rear end of the charging pile body 1 to communicate with the inside thereof;

[0049] A ring plate 122 is fixedly mounted in the opening 121. Figure 3 As shown, the outer ring end of the ring plate 122 fits the inner wall of the opening 121, that is, the inner ring end of the ring plate 122 connects the inside and outside of the charging pile body 1;

[0050] The ring plate 122 has an inner cavity and a moisture absorbing layer 123 (the moisture absorbing layer can be silica gel dry particles, etc.) is arranged inside the ring plate 122. The ring plate 122 is provided with air holes 124 communicating with the inner cavity. When air flows between the air holes, water vapor can be absorbed, thereby reducing the humidity of the air entering the charging pile body 1 and strengthening protection.

[0051] A dustproof layer 125 is fixedly arranged in the ring cavity of the ring plate 122, and dust can be blocked when air flows therebetween, thereby improving cleanliness.

[0052] The air holes 124 are provided in a plurality of groups and are evenly distributed on the outer side of the ring plate 122 to provide a uniform moisture absorption effect.

[0053] The above shows and describes the basic principles and main features of the utility model and the advantages of the utility model. For those skilled in the art, it is obvious that the utility model is not limited to the details of the above exemplary embodiments, and can be implemented in other specific forms without departing from the spirit or basic features of the utility model. Therefore, no matter from which point of view, the embodiments should be regarded as exemplary and non-restrictive. The scope of the utility model is limited by the attached claims rather than the above description, and it is intended to include all changes within the meaning and scope of the equivalent elements of the claims. Any figure mark in the claims should not be regarded as limiting the claims involved.

[0054] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A multi-power charging timing device for a public charging pile, comprising a charging pile body (1); It is characterized in that The charging pile body (1) is fixedly equipped with an overload protector (2), a short circuit protector (3), an electric energy metering module (4), a leakage protector (5) and a DC fast charger (6) which are electrically connected in sequence; A charging gun (7) electrically connected to a DC fast charger (6) is installed outside the charging pile body (1); A microprocessor (8) electrically connected to the electric energy metering module (4) is also provided in the charging pile body (1); the microprocessor (8) is electrically connected to a real-time clock module provided in the charging pile body (1); A touch screen (10) is also fixedly mounted on the outside of the charging pile body (1), and the touch screen (10) is electrically connected to the microprocessor (8).

2. A multi-power charging timing device for a public charging pile according to claim 1, characterized in that: A storage module (9) electrically connected to the microprocessor (8) is also provided in the charging pile body (1).

3. A multi-power charging timing device for a public charging pile according to claim 2, characterized in that: A circuit board (11) is fixedly installed in the charging pile body (1), and a real-time clock module, a microprocessor (8) and a storage module (9) are all installed on the circuit board (11). The microprocessor (8) is electrically connected to the electric energy metering module (4) and the touch screen (10) respectively through the circuit board (11).

4. A multi-power charging timing device for a public charging pile according to claim 1, characterized in that: At least one set of ventilation components (12) is provided on the charging pile body (1).

5. A multi-power charging timing device for a public charging pile according to claim 4, characterized in that: The ventilation component (12) comprises a through opening (121) connecting the inside and outside of the charging pile body (1); a ring plate (122) is fixedly arranged in the through opening (121); the ring plate (122) has an inner cavity and a moisture absorbing layer (123) is arranged inside the inner cavity; an air hole (124) communicating with the inner cavity is arranged outside the ring plate (122); and a dustproof layer (125) is fixedly arranged in the annular cavity of the ring plate (122).

6. A multi-power charging timing device for a public charging pile according to claim 5, characterized in that: A plurality of groups of air holes (124) are provided and are evenly distributed on the outer side of the ring plate (122).

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