Charging device and charging system

Abstract

The utility model discloses a charging device and a charging system. The charging device comprises a cabinet body, a direct current output module and a power module. A containing cavity is formed in the cabinet body, the direct current output module is arranged in the containing cavity and used for being connected with a load, the power module is arranged in the containing cavity, the first end of the power module is used for being connected with alternating current, and the second end of the power module is connected with the direct current output module. The power module is used for converting alternating current into direct current and outputting the direct current to the direct current output module. According to the technical scheme, the circuit devices in the charging device are modularly designed, so that the circuit devices capable of realizing the same function in the charging device are arranged at the same position of the charging device, and when maintenance personnel overhaul the charging device, the maintenance personnel only need to position the corresponding function module according to the corresponding overhaul content, and the maintenance personnel can carry out maintenance on the charging device. Therefore, the maintenance cost of the charging device can be reduced.

Description

Technical Field

[0001] This application relates to the technical field of charging devices, and particularly to a charging device and a charging system. Background Art

[0002] It is used to convert the electric energy of the power grid into direct current with different voltage and current levels, and then charge the electrical equipment to maintain the normal use of the electrical equipment. In the related art, the wiring of the charging device is messy and the maintenance cost is high. Summary of the Utility Model

[0003] The purpose of this application is to provide a charging device and a charging system, aiming to solve the problems in the related art that the wiring of the charging device is messy and the maintenance cost is high.

[0004] To achieve the purpose of this application, in the first aspect, this application provides a charging device, which includes:

[0005] A cabinet body, which forms a receiving cavity;

[0006] A DC output module, which is arranged in the receiving cavity and is used to be connected to a load; and

[0007] A power module, which is arranged in the receiving cavity, the first end of the power module is used to access alternating current, the second end of the power module is connected to the DC output module, and the power module is used to convert alternating current into direct current and output it to the DC output module.

[0008] In a possible implementation, the DC output module and the power module are arranged at intervals along the width direction of the cabinet body.

[0009] In a possible implementation, the charging device includes a plurality of power modules; the plurality of power modules are arranged along the height direction and / or width direction of the cabinet body.

[0010] In a possible implementation, the DC output module has a plurality of output units, and the output units are used to be connected to a load;

[0011] The second end of the power module is used to be selectively connected to the plurality of output units; the power module is used to convert alternating current into direct current and selectively output it to the corresponding output unit.

[0012] In a possible implementation, the charging device further includes an AC input module, which is used to input alternating current, and one end of the power module is connected to the AC input module.

[0013] In a possible implementation, the power module includes a rectification unit and a relay switch; a first end of the rectification unit is connected to the AC input module, a second end of the rectification unit is connected to the relay switch, and the rectification unit is configured to convert alternating current into direct current;

[0014] A second end of the relay switch is configured to selectively connect to a plurality of the output units.

[0015] In a possible implementation, the output unit includes a positive current conducting bar and a negative current conducting bar;

[0016] The rectification unit includes a first rectification unit and a second rectification unit. A first input end of the first rectification unit is connected to the AC input module, and a first output end of the first rectification unit is connected to the positive current conducting bar;

[0017] A second input end of the first rectification unit is connected to the negative current conducting bar, and a second output end of the first rectification unit is connected to the AC input module;

[0018] A first input end of the second rectification unit is connected to the AC input module, and a first output end of the second rectification unit is connected to the positive current conducting bar;

[0019] A second input end of the second rectification unit is connected to the negative current conducting bar, and a second output end of the second rectification unit is connected to the AC input module.

[0020] In a possible implementation, the relay switch includes a first relay switch and a second relay switch. A first end of the first relay switch is selectively connected to a first input end of the first rectification unit and a first input end of the second rectification unit respectively; a second end of the first relay switch is connected to the positive current conducting bars of a plurality of the output units;

[0021] A first end of the second relay switch is connected to a second input end of the first rectification unit and a second output end of the second rectification unit respectively, and a second end of the second relay switch is selectively connected to the negative current conducting bars of a plurality of the output units;

[0022] The first relay switch and the second relay switch are arranged at intervals along the height direction of the charging device.

[0023] In a possible implementation, the power module further includes a fuse. A first end of the fuse is configured to be connected to a first output end of the first rectification unit and a first output end of the second rectification unit respectively, and a second end of the fuse is configured to be connected to a first end of the first relay switch.

[0024] In a possible implementation, the power module further includes a circuit breaker, a first end of the circuit breaker is connected to the AC input module, and a second end of the circuit breaker is connected to the rectification unit.

[0025] In a possible implementation, the circuit breaker and the relay switch are arranged at intervals along the width direction of the charging device.

[0026] In a possible implementation, the charging device further includes an output sampling module, the output sampling module is configured to sample the current parameters of the DC output module, the output sampling module includes an electricity meter and a sampling control board, and the electricity meter is respectively connected to the DC output module and the sampling control board.

[0027] In a possible implementation, the output sampling module includes a first output sampling module and a second output sampling module;

[0028] Among the output units, at least some of the output units are connected to the first output sampling module, and the other part of the output units are connected to the second output sampling module.

[0029] In a possible implementation, the output sampling module further includes a lightning arrester, and the lightning arrester is connected to the DC output module.

[0030] In a possible implementation, the charging device further includes a plurality of connectors, the AC input module and the power module are connected through the connectors; and / or

[0031] The power module and the DC output module are connected through the connectors; the output sampling module and the DC output module are connected through the connectors.

[0032] In a second aspect, the present application further provides a charging system, the charging system includes a charging device, the charging device includes a power module and a DC output module; the DC output module has a plurality of output units; a first end of the power module is configured to access alternating current, and a second end of the power module is configured to be selectively connected to the plurality of output units;

[0033] The power module is configured to convert the alternating current into direct current and selectively output it to the corresponding output unit.

[0034] The technical solution of this application modularizes the circuit components in the charging device, so that the circuit components that can achieve the same function in the charging device are arranged at the same position in the charging device. When maintenance personnel perform maintenance on the charging device, they only need to locate to the corresponding functional module according to the corresponding maintenance content, and then they can achieve the maintenance of the charging device. In this way, the maintenance difficulty of the charging device is reduced, and the maintenance cost of the charging device is reduced. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, the drawings in the following description are only some embodiments of the present application. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0036] Figure 1 FIG. 9 is a schematic perspective view of an embodiment of the charging system provided by the present application;

[0037] Figure 2 For Figure 1 the schematic perspective view of the charging device in FIG. 15;

[0038] Figure 3 For Figure 1 the side view of the charging device in FIG. 21;

[0039] Figure 4 For Figure 1 the circuit diagram of the charging device in FIG. 27;

[0040] Figure 5 For Figure 1 the front view of the charging device in FIG. 33;

[0041] Figure 6 For Figure 4 the schematic perspective view of the interior of the first box body in FIG. 39;

[0042] Figure 7 FIG. 43 is a schematic view of the lower layer structure of the first box body;

[0043] Figure 8 FIG. 47 is a schematic view of the upper layer structure of the first box body;

[0044] Figure 9 FIG. 51 is a side view of the first box body;

[0045] Figure 10 FIG. 55 is a schematic perspective view of the output sampling module;

[0046] Figure 11 For Figure 2 the enlarged view at A in FIG. 61;

[0047] Figure 12 is Figure 10 a schematic diagram of the three-dimensional structure of the medium-power module;

[0048] Figure 13 is Figure 3 a schematic diagram of the architecture of the control module.

[0049] Description of the reference numerals:

[0050] 1000 - charging system

[0051] 100 - charging device

[0052] 1 - power module, 11 - rectification unit, 111 - first rectification unit, 1111 - second box body, 1112 - second box main body, 1113 - second mounting panel, 112 - second rectification unit, 1121 - third box body, 1122 - third box main body, 1123 - third mounting panel, 12 - relay switch, 121 - first relay switch, 122 - second relay switch, 13 - fuse, 14 - circuit breaker, 15 - first box body, 151 - weight reduction hole, 152 - first box main body, 153 - first mounting panel, 16 - first mounting plate, 17 - second mounting plate, 18 - third mounting plate, 19 - power distribution control board, 110 - fastener, 120a - first special-shaped current-carrying bar, 120b - second special-shaped current-carrying bar;

[0053] 2 - DC output module, 21 - output unit, 211 - positive current-carrying bar, 212 - negative current-carrying bar;

[0054] 3 - AC input module;

[0055] 4 - output sampling module, 4a - first output sampling module, 4b - second output sampling module, 41 - electric energy meter, 42 - sampling control board, 43 - lightning arrester, 44 - fourth box body, 441 - fourth box main body, 442 - fourth mounting panel, 45 - first mounting beam, 46 - second mounting beam, 47 - fourth mounting plate, 48 - adapter terminal;

[0056] 5 - ventilation and heat dissipation module;

[0057] 6 - control module;

[0058] 7 - cabinet, 71 - cabinet main body, 72 - bracket, 73 - slide rail, 731 - first slide rail, 732 - second slide rail, 733 - third slide rail, 734 - fourth slide rail, 74 - accommodation cavity;

[0059] 8 - connector. Detailed implementation manners

[0060] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present application without creative efforts shall fall within the protection scope of the present application.

[0061] It should be noted that when a component is referred to as being "fixed to" another component, it can be directly on the other component or there may also be an intermediate component. When a component is considered to be "connected" to another component, it can be directly connected to the other component or there may be an intermediate component at the same time.

[0062] Unless otherwise defined, all technical and scientific terms used in the present application have the same meaning as commonly understood by those skilled in the technical field to which the present application belongs. The terms used in the present application in the specification are only for the purpose of describing specific embodiments, and are not intended to limit the present application. The term "and / or" used in the present application includes any and all combinations of one or more of the related listed items.

[0063] Some embodiments of the present application will be described in detail below with reference to the accompanying drawings. Without conflict, the following embodiments and the features in the embodiments can be combined with each other.

[0064] Please refer to Figure 1 , the present application provides a charging system 1000. The charging system 1000 includes a plurality of charging devices 100, and the charging devices 100 are used to connect to a power grid. The charging devices 100 are used to convert the electrical energy of the power grid into direct current with different voltage and current levels, and then charge the electrical equipment. The electrical equipment can be a vehicle, a cloud rail, a ship, or an aircraft, and the present application does not limit this.

[0065] In the related art, the wiring of the charging devices is messy and the maintenance cost is high. Please refer to Figures 2 to 4 , to solve the above problems, in the present application, the charging device 100 includes a cabinet 7, a DC output module 2, and a power module 1. The cabinet 7 forms a receiving cavity 74. The DC output module 2 is disposed in the receiving cavity 74, and the DC output module 2 is used to connect to a load. The power module 1 is disposed in the receiving cavity 74. The first end of the power module 1 is used to access alternating current, and the second end of the power module 1 is connected to the DC output module 2. The power module 1 is used to convert alternating current into direct current and output it to the DC output module 2.

[0066] The technical solution of this application modularizes the circuit components in the charging device 100, so that the circuit components that can achieve the same function in the charging device 100 are arranged at the same position in the charging device 100. When maintenance personnel perform maintenance on the charging device 100, they only need to locate to the corresponding functional module according to the corresponding maintenance content, and then they can achieve the maintenance of the charging device 100. In this way, the maintenance difficulty of the charging device 100 is reduced, and the maintenance cost of the charging device 100 is reduced.

[0067] Hereinafter, the charging device 100 provided by this application will be described in detail with reference to the accompanying drawings.

[0068] The charging device 100 includes a cabinet 7. The cabinet 7 serves as the support main body of the entire charging device 100 and is used to support and connect the various functional modules of the charging device 100. The shape of the cabinet 7 can be rectangular, cylindrical, or other regular or irregular shapes, and this application does not limit this. The cabinet 7 forms a receiving cavity 74, and the receiving cavity 74 is used to provide an installation space for other components of the charging device 100.

[0069] The charging device 100 further includes a DC output module 2. The DC output module 2 is arranged in the receiving cavity 74. The first end of the power module 1 is used to access alternating current, and the second end of the power module 1 is connected to the DC output module 2. The power module 1 is used to convert the alternating current of the power grid into direct current available for electrical equipment and output it to the DC output module 2.

[0070] In an implementable manner of this application, the DC output module 2 includes a plurality of output units 21, and each output unit 21 includes a positive current-carrying bar 211 and a negative current-carrying bar 212. In specific applications, each output unit 21 is externally connected to a charging gun. The charging gun has a first port and a second port. The first port is connected to the positive current-carrying bar 211, and the second port is connected to the negative current-carrying bar 212. The space between the first port and the second port is used for electrical equipment to be connected. When the electrical equipment is connected to the charging gun, the current of the power grid can, under the allocation of the power module 1, flow through the positive current-carrying bar 211 and the first port to the electrical equipment, and then flow through the second port and the negative current-carrying bar 212 to the power grid, so as to achieve simultaneous charging of multiple electrical equipment and improve the charging efficiency of the charging device 100.

[0071] The charging device 100 further includes a power module 1. The power module 1 is disposed in the accommodation cavity 74. In an implementable embodiment of the present application, the power module 1 and the DC output module 2 are spaced apart in the width direction of the cabinet 7. In this way, the layout of the power module 1 and the DC output module 2 in the cabinet 7 is optimized, the distance between the power module 1 and the DC output module 2 in the cabinet 7 is increased, the electromagnetic interference between the power module 1 and the DC output module 2 is reduced, and the stable operation of the charging device 100 is ensured.

[0072] The power module 1 is used to convert the alternating current of the power grid into direct current and selectively distribute it for use by each output unit 21. One power module 1 can be provided, two power modules 1 can be provided, or multiple power modules 1 can be provided. The present application does not limit this. In an implementable embodiment of the present application, the charging device 100 includes multiple power modules 1, and the multiple power modules 1 are arranged in the height direction and / or width direction of the cabinet 7. By setting it in this way, on the one hand, the charging device 100 can supply power to multiple output units 21 simultaneously, improving the power supply efficiency of the charging device 100. On the second hand, when a certain power module 1 is damaged, other power modules 1 can replace this power module 1 to continue to complete the power supply, improving the reliability of the charging device 100. On the third hand, each power module 1 can be connected to any output unit 21. By changing the number of power modules 1 connected to the output unit 21, the output power of the charging device 100 can be adjusted. For example, assuming that the power that each power module 1 can allocate is 30W, if the charging power of the electrical equipment connected to a certain output unit 21 is 30W, then one power module 1 can be connected to this output unit 21. If the charging power of the electrical equipment connected to a certain output unit 21 is 120W, then four power modules 1 can be connected to this output unit 21. In this way, cross-allocation of power is achieved, and the versatility of the charging device 100 is improved.

[0073] It should be noted that the arrangement of multiple power modules 1 in the height direction and / or width direction of the cabinet 7 means that the multiple power modules 1 can be arranged in the height direction of the cabinet 7, can be arranged in the width direction of the cabinet 7, or can be arranged in both the height direction and the width direction of the cabinet 7 at the same time.

[0074] Please refer to Figure 5 , the power module 1 includes a rectifying unit 11. The first end of the rectifying unit 11 is connected to the power grid, and the second end of the rectifying unit 11 is connected to the DC output module 2. The power module 1 can convert the alternating current of the power grid into direct current available for electrical equipment through the rectifying unit 11, so as to charge the electrical equipment.

[0075] In an implementable embodiment of the present application, the rectification unit 11 includes a first rectification unit 111 and a second rectification unit 112. The first input end of the first rectification unit 111 is connected to the AC input module 3, and the first output end of the first rectification unit 111 is connected to the positive current-carrying bar 211; the second input end of the first rectification unit 111 is connected to the negative current-carrying bar 212, and the second output end of the first rectification unit 111 is connected to the AC input module 3; the first input end of the second rectification unit 112 is connected to the AC input module 3, and the first output end of the second rectification unit 112 is connected to the positive current-carrying bar 211; the second input end of the second rectification unit 112 is connected to the negative current-carrying bar 212, and the second output end of the second rectification unit 112 is connected to the AC input module 3.

[0076] A part of the current in the power grid can reach the electrical equipment through the first input end of the first rectification unit 111, the first output end of the first rectification unit 111, and the positive current-carrying bar 211, and then return to the power grid via the negative current-carrying bar 212, the second input end of the first rectification unit 111, and the second output end of the first rectification unit 111. Another part of the current in the power grid can reach the electrical equipment through the first input end of the second rectification unit 112, the first output end of the second rectification unit 112, and the positive current-carrying bar 211, and then return to the power grid via the negative current-carrying bar 212, the second input end of the second rectification unit 112, and the second output end of the second rectification unit 112. The redundant setting of the first rectification unit 111 and the second rectification unit 112 can, on the one hand, reduce the current transmitted from the power network to each rectification unit 11, reduce the load of each rectification unit 11, and extend the service life of the rectification unit 11. On the other hand, when one of the first rectification unit 111 or the second rectification unit 112 is damaged, the other of the first rectification unit 111 or the second rectification unit 112 can continue to be used. In this way, the reliability of the charging device 100 can be improved.

[0077] Please refer to Figures 6 to 8, the power module 1 further includes a relay switch 12, which can be a contactor, a relay, or other pushbutton switches, and this application does not limit it. The relay switch 12 includes a plurality of first relay switches 121 and a plurality of second relay switches 122. The first ends of each first relay switch 121 are respectively used to connect to the first input ends of the first rectification unit 111 and the second rectification unit 112; the second ends of the first relay switches 121 are used to connect to the positive current-carrying bars 211 of the plurality of output units 21. The first ends of each second relay switch 122 are respectively used to connect to the second input ends of the first rectification unit 111 and the second output ends of the second rectification unit 112, and the second ends of the second relay switches 122 are used to connect to the negative current-carrying bars 212 of the plurality of output units 21. The first relay switch 121 and the second relay switch 122 connected to the same output unit 21 form a switch group. The power module 1 can selectively connect to different output units 21 by closing different switch groups, thereby realizing the power distribution for different output units 21.

[0078] Please refer to Figure 7 , the power module 1 further includes a fuse 13. The first end of the fuse 13 is used to connect to the first output ends of the first rectification unit 111 and the second rectification unit 112 respectively, and the second end of the fuse 13 is used to connect to the first end of the first relay switch 121. When an abnormal current appears in the circuit, the fuse 13 can quickly blow and cut off the circuit to protect the charging device 100 safely.

[0079] Please refer to Figure 8 , the power module 1 further includes a circuit breaker 14. The first end of the circuit breaker 14 is used to connect to the power grid, and the second end is connected to the rectification unit 11. When the controller of the charging device 100 detects circuit abnormalities such as overload, short circuit, and overvoltage in the circuit of the charging device 100, the controller can control the circuit breaker 14 to disconnect from the power grid to protect the circuit safety and improve the safety of the charging device 100.

[0080] Please refer to in combination with Figure 7 and Figure 8 , the power module 1 further includes a first box body 15, a first mounting plate 16, and a second mounting plate 17. The first box body 15 forms a first accommodation cavity, and the second mounting plate 17 and the first mounting plate 16 are installed in the first accommodation cavity by bolts.

[0081] In an implementable manner of this application, the first box body 15 is provided with a plurality of elongated weight-reducing holes 151, and the weight-reducing holes 151 are used to reduce the weight of the first box body 15, thereby reducing the weight of the power module 1 and the weight of the charging device 100.

[0082] The circuit breaker 14 is installed on the first mounting plate 16. The first end of the circuit breaker 14 is connected to the power network through a cable, and the second end of the circuit breaker 14 is connected to the rectifying unit 11 through a cable. The first relay switch 121 and the fuse 13 are installed on the first mounting plate 16. The first end of the fuse 13 is connected to the rectifying unit 11 through a cable, and the second end of the fuse 13 is connected to the first relay switch 121 through the first special-shaped current-carrying bar 120a. The second end of the first relay switch 121 is connected to the positive current-carrying bar 211 of the output unit 21 through a cable, and the first relay switches 121 are connected to each other through the first special-shaped current-carrying bar 120a. The second relay switch 122 is installed on the second mounting plate 17. The second relay switches 122 are connected to each other through the second special-shaped current-carrying bar 120b and are connected to the negative current-carrying bar 212 of the output unit 21 through a cable connected to the second special-shaped current-carrying bar 120b.

[0083] In an implementable embodiment of the present application, the circuit breaker 14, the first relay switch 121, and the second relay switch 122 are arranged at intervals along the width direction of the cabinet 7. In this way, the setting distance between the circuit breaker 14, the first relay switch 121, and the second relay switch 122 is extended, and further, the distance between the alternating current and the direct current in the first box body 15 is extended, the influence of the alternating current in the circuit breaker 14 on the direct current in the first relay switch 121 and the second relay switch 122 is reduced, and the stability of the current in the charging device 100 is improved.

[0084] Please refer to Figure 9 , in an implementable embodiment of the present application, the first relay switch 121 and the second relay switch 122 are arranged at intervals along the height direction of the charging device 100. In this way, when current flows through the first relay switch 121, the second relay switch 122, the first special-shaped current-carrying bar 120a, and the second special-shaped current-carrying bar 120b, the magnitudes of the currents in the first relay switch 121, the second relay switch 122, the first special-shaped current-carrying bar 120a, and the second special-shaped current-carrying bar 120b are equal and the directions are opposite. The magnetic fields generated by the first relay switch 121, the second relay switch 122, the first special-shaped current-carrying bar 120a, and the second special-shaped current-carrying bar 120b can cancel each other out. In this way, the stray inductance between the first relay switch 121, the second relay switch 122, the first special-shaped current-carrying bar 120a, and the second special-shaped current-carrying bar 120b is reduced, and the stability of the current in the charging device 100 is improved.

[0085] Please refer to Figure 6, the power module 1 further includes a power distribution control board 19. A power distribution control program is integrated in the power distribution control board 19. The power distribution control program can control the closing of different switch groups to control the current distribution of the charging device 100. Correspondingly, the first box body 15 further includes a third mounting plate 18. The third mounting plate 18 and the second mounting plate 17 are respectively arranged on the left and right sides of the first box body 15, and the power distribution control board 19 is mounted on the second mounting plate 17.

[0086] In an implementable manner of the present application, fasteners 110 are provided on the first mounting plate 16, the second mounting plate 17, and the third mounting plate 18. The cable is threaded through the fasteners 110. The fasteners 110 are used to provide positioning for the cable on the first mounting plate 16, the second mounting plate 17, and the third mounting plate 18, and improve the stability of the cable arrangement on the first mounting plate 16, the second mounting plate 17, and the third mounting plate 18.

[0087] The power module 1 further includes a second box body 1111 and a third box body 1121. A first rectification circuit is provided in the second box body 1111. The second box body 1111 and the first rectification circuit constitute a first rectification unit 111. A second rectification circuit is provided in the third box body 1121. The third box body 1121 and the second rectification circuit constitute a second rectification unit 112. In an implementable manner of the present application, the charging device 100 further includes a plurality of connectors 8. The first box body 15, the second box body 1111, and the DC output module 2 are connected by plugging through the connectors 8. In this way, the electrical connection difficulty between the power module 1 and the DC output module 2 is reduced, and the maintenance efficiency of the charging device is improved.

[0088] Please refer to Figure 5 , the charging device 100 further includes an AC input module 3. The first end of the AC input module 3 is connected to the power grid, and the second end of the power module 1 is connected to the AC input module 3. The current of the power grid can enter the power module 1 through the AC input module 3. The AC input module 3 is also provided with connectors 8. The AC input module 3 completes the electrical connection with other modules through the connectors 8. In this way, the connection difficulty between the AC input module 3 and other modules is reduced, and the connection efficiency between the AC input module 3 and other modules is improved.

[0089] Please refer to Figure 3 and Figure 4 , the charging device 100 further includes an output sampling module 4. The output sampling module 4 is used to sample the current parameters of the DC output module 2. The current parameter can be the output current magnitude of the DC output module 2, the output voltage of the DC output module 2, or the output power of the DC output module 2. The present application does not limit this.

[0090] The output sampling module 4 may be provided with one or more, and the present application does not impose any restrictions on this. In one possible implementation mode of the present application, the output sampling module 4 includes a first output sampling module 4a and a second output sampling module 4b, and among the output units 21, at least some of the output units 21 are connected to the first output sampling module 4a, and the other part of the output units 21 are connected to the second output sampling module 4b. The first output sampling module 4a and the second output sampling module 4b can share the task of collecting the current parameters of the output unit 21 with each other, so as to reduce the collection power of a single output sampling module 4 and extend the service life of the output sampling module 4.

[0091] Please refer to Figure 10 The output sampling module 4 includes an electric energy meter 41 and a sampling control board 42. The sampling control board 42 integrates a sampling program. One end of the electric energy meter 41 is connected to the positive current guide bar 211 of the output unit 21 through a shunt, and the other end is connected to the sampling control board 42. The electric energy meter 41 is used to collect data from the positive current guide bar 211. The sampling control board 42 is used to receive and process the current sampling data from the electric energy meter 41, so as to monitor and control the current parameters of the DC output module 2, thereby ensuring circuit safety.

[0092] The output sampling module 4 also includes a lightning arrester 43, which is connected to the DC output module 2. When a transient overvoltage occurs in the DC output module 2, the lightning arrester 43 can be quickly turned on and shunt the overvoltage to the ground line, thereby protecting the circuit safety of the DC output module 2.

[0093] The output sampling module 4 also includes a fourth box body 44 and a first mounting beam 45. The fourth box body 44 is formed with a second accommodating cavity. The first mounting beam 45 is installed at the bottom of the second accommodating cavity by bolts. The electric energy meter 41 and the lightning arrester 43 are installed on the first mounting beam 45. The output sampling module 4 also includes a second mounting beam 46 and a plurality of adapter terminals 48. The second mounting beam 46 and the first mounting beam 45 are arranged at intervals along the height direction of the fourth box body 44. The adapter terminals 48 are arranged on the second mounting beam 46, and the components in the output sampling module 4 are transferred through the adapter terminals 48. The output sampling module 4 also includes a fourth mounting plate 47. The fourth mounting plate 47 is installed on the cavity wall of the second accommodating cavity by bolts, and the fourth mounting plate 47 is arranged at intervals with the first mounting beam 45 along the height direction of the fourth box body 44, and is arranged at intervals with the second mounting beam 46 along the width direction of the fourth box body 44. The sampling control board 42 is installed on the fourth mounting plate 47.

[0094] A connector 8 is also provided on the output sampling module 4, and the output sampling module 4 is connected to the DC output module 2 via the connector 8, thereby reducing the installation difficulty of the output sampling module 4 and the DC output module 2 and improving the connection efficiency of the output sampling module 4 and the DC output module 2.

[0095] Please refer to Figure 11 and Figure 12 For the installation of each module, in an implementable embodiment of the present application, the cabinet 7 includes a cabinet body 71, a bracket 72 and a slide rail 73. The slide rail 73 includes a first slide rail 731, a second slide rail 732, a third slide rail 733 and a fourth slide rail 734. The bracket 72 and the slide rail 73 are arranged inside the cabinet body 71. The DC output module 2 and the AC input module 3 are fixed on the inner wall surface of the cabinet body 71.

[0096] The first box body 15 of the power module 1 includes a first box body 152 and a first mounting panel 153. The first box body 152 is movably arranged on the first slide rail 731, and the first mounting panel 153 is detachably connected to the bracket 72 by bolts. The second box body 1111 includes a second box body 1112 and a second mounting panel 1113. The second box body 1112 is movably arranged on the second slide rail 732, and the second mounting panel 1113 is detachably connected to the bracket 72 by bolts. The third box body 1121 includes a third box body 1122 and a third mounting panel 1123. The third box body 1122 is movably arranged on the third slide rail 733, and the third mounting panel 1123 is detachably connected to the bracket 72 by bolts. The third box body 1121 includes a fourth box body 441 and a fourth mounting panel 442. The fourth box body 441 is movably arranged on the fourth slide rail 734, and the fourth mounting panel 442 is detachably connected to the bracket 72 by bolts. By pulling the first box body 15, the second box body 1111, the third box body 1121 and the fourth box body 44, the installation and replacement of the power module 1, the DC output module 2 and the output sampling module 4 can be realized. At the same time, by increasing the number of the slide rails 73, the expansion of the power module 1, the DC output module 2 and the output sampling module 4 can also be realized, improving the adaptability of the charging system 1000.

[0097] Please refer to Figure 3 , the charging device 100 further includes a ventilation and heat dissipation module 5. The ventilation and heat dissipation module 5 is fixed on the cabinet 7. The ventilation and heat dissipation module 5 includes a heat dissipation device and a temperature sensing device. The temperature sensing device can be a thermometer or a thermistor, and the present application does not limit this. The temperature sensing device is used to detect the temperature of the cabinet 7 and can transmit the detected data to the controller of the charging device 100. When the temperature of the cabinet 7 exceeds the preset temperature, the controller will start the heat dissipation device to dissipate heat from the cabinet 7. The heat dissipation device can be an air-cooled heat dissipation device or a water-cooled heat dissipation device, and the present application does not limit this.

[0098] The charging device 100 further includes a control module 6. The controller of the charging device 100 is integrated in the control module 6. The control module 6 is used to control the charging and discharging of the charging device 100. Please refer to Figure 13, Figure 13 It is a schematic diagram of the architecture of the control module 6. Under normal circumstances, PGD1, PGD3, and PGD5 upload communication signals to IMC1, OSU1 uploads output sampling signals to IMC2, PGD2, PGD4, and PGD6 upload communication signals to IMC2, and OSU2 also uploads output sampling signals to IMC2. The signals between IMC1 and IMC2, and between OSU1 and OSU2 are synchronized in real time. When any one of the PGDs fails, it does not affect the operation of the remaining PGDs. When any one of the IMCs or OSU fails, the other IMC or OSU can maintain the operation of the charging device, greatly improving the stability and reliability of the charging device 100.

[0099] In the description of the embodiments of the present application, it should be noted that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present application.

[0100] The above-disclosed is only a preferred embodiment of the present application. Of course, the scope of the rights of the present application cannot be limited thereby. Those of ordinary skill in the art can understand all or part of the processes of implementing the above embodiments, and the equivalent changes made according to the claims of the present application still fall within the scope covered by the present application.

Claims

1. A charging device, characterized in that: include: A cabinet body, wherein the cabinet body is formed with a receiving cavity; a DC output module, the DC output module being disposed in the accommodating cavity and being used to be connected to a load; and A plurality of power modules, wherein the power modules are arranged in the accommodating cavity, the DC output module and the power module are arranged at intervals along the width direction of the cabinet; the plurality of power modules are arranged in an array along the height direction of the cabinet, the first end of the power module is used to connect to the AC power, the second end of the power module is connected to the DC output module, and the power module is used to convert the AC power into the DC power and output it to the DC output module; Wherein, the DC output module has a plurality of output units, each of which includes a positive electrode guide bar and a negative electrode guide bar; The power module includes a rectifier unit and a relay switch; the first end of the rectifier unit is connected to the AC input module, and the second end of the rectifier unit is connected to the relay switch, and the rectifier unit is used to convert AC power into DC power; the second end of the relay switch is used to selectively connect to multiple output units.

2. The charging device according to claim 1, characterized in that: The second end of the power module is used for selectively connecting to a plurality of the output units; the power module is used for converting alternating current into direct current and selectively outputting it to the corresponding output unit.

3. The charging device according to claim 2, characterized in that: The charging device further comprises an AC input module, wherein the AC input module is used to input AC power, and one end of the power module is connected to the AC input module.

4. The charging device according to claim 3, characterized in that: The rectifier unit includes a first rectifier unit and a second rectifier unit, the first input end of the first rectifier unit is connected to the AC input module, and the first output end of the first rectifier unit is connected to the positive current guide bar; The second input end of the first rectifier unit is connected to the negative electrode guide bar, and the second output end of the first rectifier unit is connected to the AC input module; The first input end of the second rectifier unit is connected to the AC input module, and the first output end of the second rectifier unit is connected to the positive current guide bar; The second input end of the second rectifying unit is connected to the negative electrode current conducting bar, and the second output end of the second rectifying unit is connected to the AC input module.

5. The charging device according to claim 4, characterized in that: The relay switch includes a first relay switch and a second relay switch, wherein the first end of the first relay switch is connected to the first input end of the first rectifier unit and the first input end of the second rectifier unit respectively; the second end of the first relay switch is selectively connected to the positive electrode conducting bars of the plurality of output units; The first end of the second relay switch is respectively connected to the second input end of the first rectifier unit and the second output end of the second rectifier unit, and the second end of the second relay switch is selectively connected to the negative electrode conducting bars of the plurality of output units; The first relay switch and the second relay switch are arranged at intervals along a height direction of the cabinet.

6. The charging device according to claim 5, characterized in that: The power module further includes a fuse, a first end of the fuse being respectively connected to a first output end of the first rectifier unit and a first output end of the second rectifier unit, and a second end of the fuse being connected to a first end of the first relay switch.

7. The charging device according to claim 3, characterized in that: The power module further includes a circuit breaker, a first end of the circuit breaker is connected to the AC input module, and a second end of the circuit breaker is connected to the rectifier unit.

8. The charging device according to claim 7, characterized in that: The circuit breaker and the relay switch are arranged at intervals along the width direction of the cabinet.

9. The charging device according to claim 2, characterized in that: The charging device also includes an output sampling module, which is used to sample the current parameters of the DC output module. The output sampling module includes an electric energy meter and a sampling control board, and the electric energy meter is connected to the DC output module and the sampling control board respectively.

10. The charging device according to claim 9, characterized in that: The output sampling module includes a first output sampling module and a second output sampling module; Among the output units, at least part of the output units are connected to the first output sampling module, and another part of the output units are connected to the second output sampling module.

11. The charging device according to claim 10, characterized in that: The first output sampling module and the second output sampling module are arranged along the width direction of the cabinet.

12. The charging device according to claim 9, characterized in that: The output sampling module also includes a lightning arrester, and the lightning arrester is connected to the DC output module.

13. The charging device according to claim 9, characterized in that: The charging device further comprises an AC input module, the AC input module is used to input AC power, one end of the power module is connected to the AC input module, and the charging device further comprises a plurality of connectors, the AC input module is connected to the power module via the connectors; and / or The power module is connected to the DC output module via the connector; the output sampling module is connected to the DC output module via the connector.

14. A charging system, characterized in that: Comprising a charging device as described in any one of claims 1 to 13.

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