Charging load metering and control cabinet

Abstract

The utility model discloses a charging load metering and control cabinet, which comprises a cabinet body, a metering chamber and a wire inlet chamber are arranged at the front end of the cabinet body, a wire outlet chamber is arranged at the rear end of the cabinet body, and a first mounting plate and a second mounting plate are fixedly connected to the middle position in the cabinet body. A plurality of first movable mounting brackets are longitudinally arranged and mounted on the first mounting plate, and a wiring ground bar, a three-phase ammeter, a metering transformer, a first cost control switch and a junction box are mounted on the first movable mounting brackets of the first mounting plate and located at the metering chamber; according to the utility model, power supply access, load metering and billing and prepayment control of the charging station can be realized, operation load monitoring and control can also be realized, the charging load of the whole station or a single branch can be managed, ordered charging can be carried out, and the charging efficiency can be improved. The purpose of protecting safe operation of the superior transformer is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of electrical equipment supporting new energy charging piles, in particular to a charging load metering and control cabinet. Background Art

[0002] With the rapid development of the new energy vehicle industry, there is a huge demand for charging infrastructure. However, large-scale disorderly charging will have a huge impact on the power grid and affect the safe operation of the power grid system. Therefore, orderly charging must be carried out to meet the energy replenishment needs of electric vehicles.

[0003] At present, large-scale charging stations usually need to be equipped with special transformers, and their operation and management are relatively standardized. However, a large number of small charging stations along highways and in residential areas are powered by the public power grid, and the charging load is mixed with the residents' life load. Therefore, it is necessary to standardize and manage these small charging stations so that the public power grid can provide charging services for electric vehicles while ensuring the residents' daily electricity consumption.

[0004] When a small charging station is built, it is necessary to build equipment such as meter boxes, power boxes and distribution branch boxes to provide and distribute power to the charging piles. Many boxes and cabinets are scattered, which is not convenient for centralized management and operation and maintenance. It is also difficult to locate problems. Therefore, it is particularly important to design a charging load metering and control cabinet to solve the problems raised by the above background technology. Utility Model Content

[0005] In view of the deficiencies in the prior art, the purpose of the present invention is to provide a charging load metering and control cabinet to solve the deficiencies in the background technology.

[0006] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0007] A charging load metering and control cabinet comprises a cabinet body, wherein a metering chamber and an incoming line chamber are arranged at the front end of the cabinet body, an outgoing line chamber is arranged at the rear end of the cabinet body, a first mounting plate and a second mounting plate are fixedly connected at the middle position inside the cabinet body, a plurality of first movable mounting brackets are longitudinally arranged and mounted on the first mounting plate, a wiring ground bar, a three-phase electric meter, a metering transformer, a first fee control switch and a junction box are mounted on the first movable mounting bracket of the first mounting plate at the metering chamber, a molded case circuit breaker is mounted on the first movable mounting bracket of the first mounting plate at the incoming line chamber, a plurality of second movable mounting brackets are longitudinally arranged and mounted on the second mounting plate, a current transformer, a five-hole socket, a carrier module, a surge protector, a control module, a second fee control switch, a current-carrying busbar and a leakage protector are mounted on the second movable mounting bracket of the second mounting plate at the outgoing line chamber.

[0008] Preferably, a plurality of the second fee control switches are provided, one of which is provided with a plurality of branch terminals as control outputs of an AC charging pile, and the remaining second fee control switches are provided as control outputs of a DC charging pile.

[0009] Preferably, cabinet doors are provided at the openings of the metering chamber, the incoming line chamber and the outgoing line chamber, one end of the cabinet door is rotatably connected to the cabinet body, and the other end of the cabinet door is equipped with a door lock that cooperates with the cabinet body to lock.

[0010] Preferably, an observation window is installed on the cabinet door located at the metering chamber.

[0011] Preferably, a heat dissipation cabinet top is fixedly connected to the top of the cabinet body.

[0012] Preferably, a floor base is fixedly connected to the bottom of the cabinet, and a plurality of heat dissipation convex holes are arranged on both the front and rear sides of the floor base, and the heat dissipation convex holes are communicated with the interior of the cabinet.

[0013] Preferably, the cabinet body is made of cold-rolled carbon steel and is subjected to plastic spraying treatment, and a grounding device is installed on one side of the cabinet body.

[0014] Compared with the prior art, the beneficial effects of the utility model are:

[0015] The utility model can realize power supply access, load metering and billing, and prepaid payment control of the charging station, and can also realize operating load monitoring and control, manage the charging load of the station as a whole or a single branch, and carry out orderly charging to achieve the purpose of protecting the safe operation of the upper transformer. It can realize the output of DC + AC charging piles, solve the charging demands of different new energy vehicles, realize multi-pile access, and supply at the same time. Through integrated design, it organically combines metering, power distribution and other functions, and improves the level of automation, so as to support convenient and effective management of charging stations. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is the front view of the charging load metering and control cabinet;

[0017] Figure 2 This is the rear view of the charging load metering and control cabinet;

[0018] Figure 3 This is the front and interior view of the charging load metering and control cabinet;

[0019] Figure 4 This is the rear view of the charging load metering and control cabinet;

[0020] Figure 5 This is a side sectional view of the charging load metering and control cabinet.

[0021] 1. In the figure: cabinet; 101, metering room; 102, incoming line room; 103, outgoing line room; 2, cabinet door; 3, door lock; 4, observation window; 5, heat dissipation cabinet top; 6, floor base; 601, heat dissipation convex hole; 7, grounding device; 8, first mounting plate; 9, first movable mounting bracket; 10, wiring ground bar; 11, three-phase electric meter; 12, metering transformer; 13, first fee control switch; 14, junction box; 15, molded case circuit breaker; 16, second mounting plate; 17, second movable mounting bracket; 18, current transformer; 19, five-hole socket; 20, carrier module; 21, surge protector; 22, control module; 23, second fee control switch; 24, current-carrying busbar; 25, branch terminal; 26, leakage protector. DETAILED DESCRIPTION

[0022] The technical solutions in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model.

[0023] Example:

[0024] See also Figure 1-Figure 5 The present embodiment provides a charging load metering and control cabinet, including a cabinet 1, a metering chamber 101 and an incoming line chamber 102 are provided at the front end of the cabinet 1, an outgoing line chamber 103 is provided at the rear end of the cabinet 1, a first mounting plate 8 and a second mounting plate 16 are fixedly connected at the middle position inside the cabinet 1, a plurality of first movable mounting brackets 9 are longitudinally arranged and installed on the first mounting plate 8, a wiring ground bar 10, a three-phase electric meter 11, and a metering mutual inductance are installed on the first movable mounting bracket 9 of the first mounting plate 8 at the metering chamber 101 The pre-buried main cable enters the metering room 101 of the cabinet 1, passes through the metering transformer 12, and is connected to the first fee control switch 13, wherein the incoming line of the junction box 14 is merged into the incoming line end of the first fee control switch 13, and the outgoing line of the junction box 14 is connected to the three-phase meter 11, and the S1 and S2 ends of the metering transformer 12 are connected to the designated ends of the three-phase meter 11. The metering room is a separate metering device area, and users can choose to install it by themselves or with matching equipment to achieve independent management and maintenance;

[0025] A molded case circuit breaker 15 is installed on the first movable mounting bracket 9 of the first mounting plate 8 at the incoming line chamber 102. The outgoing line end of the first fee control switch 13 in the metering chamber 101 is connected to the incoming line end of the molded case circuit breaker 15 in the incoming line chamber 102. The wiring chamber is the user power access point. The molded case circuit breaker mainly controls subsequent branches to manage and control the power supply and subsequent expansion.

[0026] A plurality of second movable mounting brackets 17 are longitudinally arranged on the second mounting plate 16, and a current transformer 18, a five-hole socket 19, a carrier module 20, a surge protector 21, a control module 22, a second fee control switch 23, a current-carrying busbar 24 and a leakage protector 26 are installed on the second movable mounting bracket 17 of the second mounting plate 16 at the outlet chamber 103, wherein a plurality of second fee control switches 23 are provided, and one of the second fee control switches 23 is provided with a plurality of branch terminals 25, which are bent at the outlet end of the molded case circuit breaker 15 in the incoming chamber 102 and connected to the outlet chamber 103, passing through the metering transformer 12 to the current-carrying busbar 24, and the corresponding carrier module 2 0. The five-hole socket 19, the surge protector 21, and the control module 22 are powered by the current-carrying busbar 24. In addition, one of the second fee control switches 23 is used as the control output 6 of the AC charging pile. The branch terminal 25 is connected to each leakage protector 26. The remaining second fee control switches 23 are used as the control output of the DC pile. The outlet room is the registration and access area for the DC / AC charging pile, which can realize the output of DC + AC charging piles, solve the charging demands of different new energy vehicles, realize multi-pile access, and supply at the same time. Through integrated design, the metering, power distribution and other functions are organically combined, and the automation level is improved to support convenient and effective management of charging stations.

[0027] In this embodiment, if Figure 1 and Figure 2 As shown, cabinet doors 2 are provided at the openings of the metering room 101, the incoming line room 102 and the outgoing line room 103. One end of the cabinet door 2 is rotatably connected to the cabinet body 1, and the other end of the cabinet door 2 is installed with a door lock 3 that cooperates with the cabinet body 1 to lock, so as to facilitate opening the corresponding cabinet door 2 separately and maintaining the electrical components inside the metering room 101, the incoming line room 102 and the outgoing line room 103.

[0028] In this embodiment, if Figure 1 As shown, an observation window 4 is installed on the cabinet door 2 located at the metering room 101, so that the operating status of the electrical components in the metering room 101 can be monitored at any time.

[0029] In this embodiment, if Figure 1 and Figure 2 As shown, a heat dissipation cabinet top 5 is fixedly connected to the top of the cabinet 1, and a floor base 6 is fixedly connected to the bottom of the cabinet 1. A plurality of heat dissipation convex holes 601 are arranged on the front and rear sides of the floor base 6. The heat dissipation convex holes 601 are communicated with the interior of the cabinet 1. The heat dissipation cabinet top 5 and the heat dissipation convex holes 601 help to dissipate heat from electrical components in the cabinet 1, and discharge hot air and condensation. At the same time, the support of the floor base 6 can better avoid waterlogging.

[0030] In this embodiment, if Figure 2As shown, the cabinet body 1 is made of cold-rolled carbon steel and is treated with plastic spraying, so that the cabinet body 1 has the advantages of excellent mechanical properties, good surface quality, excellent corrosion resistance, good decorative properties, environmental protection and energy saving, good processing performance and low maintenance cost. A grounding device 7 is installed on one side of the cabinet body 1. The grounding device 7 is grounded to prevent leakage and electrical failure, lightning strikes and static electricity hazards, and protect personnel safety.

[0031] A charging load metering and control cabinet provided in the present application is applied to small charging stations, which can realize power supply access, load metering and billing, and prepaid payment control of the charging station, and can also realize operating load monitoring and control, manage the charging load of the station as a whole or a single branch, and carry out orderly charging to achieve the purpose of protecting the safe operation of the upper transformer. It can realize the output of DC + AC charging piles, solve the charging demands of different new energy vehicles, realize multi-pile access, and supply at the same time. Through integrated design, it organically combines metering, power distribution and other functions, and improves the level of automation, so as to support convenient and effective management of charging stations.

[0032] The above embodiments are preferred implementation schemes of the present invention. In addition, the present invention can also be implemented in other ways. Any obvious replacement without departing from the concept of the present technical solution is within the protection scope of the present invention.

Claims

1. A charging load metering and control cabinet, comprising a cabinet body (1), characterized in that: The cabinet (1) is provided with a metering chamber (101) and an incoming line chamber (102) at the front end, and an outgoing line chamber (103) at the rear end. A first mounting plate (8) and a second mounting plate (16) are fixedly connected at the middle position inside the cabinet (1). A plurality of first movable mounting brackets (9) are longitudinally arranged and mounted on the first mounting plate (8). A wiring ground bar (10), a three-phase electric meter (11), a metering transformer (12), a first fee control switch (13) and a junction box (16) are mounted on the first movable mounting bracket (9) of the first mounting plate (8) at the metering chamber (101). 4), a molded case circuit breaker (15) is installed on the first movable mounting bracket (9) of the first mounting plate (8) at the incoming line chamber (102), a plurality of second movable mounting brackets (17) are installed on the second mounting plate (16) in a longitudinal arrangement, and a current transformer (18), a five-hole socket (19), a carrier module (20), a surge protector (21), a control module (22), a second charge control switch (23), a current-carrying busbar (24) and a leakage protector (26) are installed on the second movable mounting bracket (17) of the second mounting plate (16) at the outgoing line chamber (103).

2. A charging load metering and control cabinet according to claim 1, characterized in that: There are multiple second charge control switches (23), one of which is provided with multiple branching terminals (25) as control outputs of the AC charging pile, and the remaining second charge control switches (23) are provided as control outputs of the DC charging pile.

3. A charging load metering and control cabinet according to claim 1, characterized in that: The metering chamber (101), the incoming line chamber (102) and the outgoing line chamber (103) are all provided with cabinet doors (2) at their openings; one end of the cabinet door (2) is rotatably connected to the cabinet body (1); and the other end of the cabinet door (2) is provided with a door lock (3) that cooperates with and locks the cabinet body (1).

4. A charging load metering and control cabinet according to claim 3, characterized in that: An observation window (4) is installed on the cabinet door (2) located at the metering chamber (101).

5. A charging load metering and control cabinet according to claim 1, characterized in that: A heat dissipation cabinet top (5) is fixedly connected to the top of the cabinet body (1).

6. A charging load metering and control cabinet according to claim 1, characterized in that: The bottom of the cabinet (1) is fixedly connected to a floor base (6), and the front and rear sides of the floor base (6) are both provided with a plurality of heat dissipation convex holes (601), and the heat dissipation convex holes (601) are communicated with the interior of the cabinet (1).

7. A charging load metering and control cabinet according to claim 1, characterized in that: The cabinet body (1) is made of cold-rolled carbon steel and is subjected to plastic spraying treatment. A grounding device (7) is installed on one side of the cabinet body (1).

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