Energy storage charge and discharge mechanical interlocking device

Abstract

The utility model discloses a kind of energy storage charge-discharge mechanical interlocking device, including control assembly, the control assembly includes casing, fixed plate, static contact, four guide rods, spring, limit disc, movable contact, adsorption disc, L-shaped mounting plate, electromagnet and sliding plate.The utility model sends circuit-breaker signal to controller by the battery management system of energy storage power station, controller controls electromagnet work, electromagnet is fixed by adsorption to adsorption disc by magnetic force, movable contact and static contact are separated, and further realize the circuit-breaker locking of transmission circuit, realize the interlocking control of energy storage power station to store and release electric energy;Through the communication of controller and battery management system, the working state of electromagnet is controlled according to on-off signal by controller, electric energy transmission circuit can be rapidly disconnected or connected, and further realize the interlocking control of energy storage power station to store and release electric energy.

Description

Technical Field

[0001] This utility model relates to a mechanical interlocking device, specifically an energy storage charging and discharging mechanical interlocking device, belonging to the technical field of interlocking devices. Background Technology

[0002] As a key component of the modern energy system, energy storage power stations are typically constructed from a large number of battery packs in an orderly manner. Strict and necessary preconditions exist for the critical operation of grid-connected charging at energy storage power stations. It is essential to ensure a normal connection between the power grid and the energy storage power station. Only when the connection between the grid and the energy storage power station is normal, and all parameters of the battery packs meet the requirements, can the charging process be initiated to ensure the safety, stability, and efficiency of the entire charging operation.

[0003] Currently, in practical operation, the control of energy storage and release in energy storage power stations mainly relies on circuit breakers. Circuit breakers function to cut off or connect current in a circuit; when a fault occurs or power transmission needs to be stopped, the circuit breaker can quickly disconnect the circuit, protecting equipment and personnel. However, this control method has significant limitations; it only achieves basic control over circuit on / off states and cannot realize automatic linkage control during charging and discharging. During charging and discharging, the battery management system needs to perform real-time linkage based on information such as the battery pack's status. Existing circuit breaker control methods lack this linkage control capability. Therefore, a mechanical interlocking device for energy storage charging and discharging is proposed. Utility Model Content

[0004] The purpose of this invention is to provide an energy storage charging and discharging mechanical interlocking device to solve one of the problems mentioned in the background art.

[0005] This utility model is implemented by the following technical solution: a mechanical interlocking device for energy storage charging and discharging, including a control component, the control component including a housing, a fixing plate, a stationary contact, four guide rods, a spring, a limit plate, a moving contact, an adsorption plate, an L-shaped mounting plate, an electromagnet and a sliding plate;

[0006] The stationary contact is fixedly connected to the inside of the fixed plate, the fixed plate is fixedly connected to the inside of the housing, the moving contact is fixedly connected to the inside of the sliding plate, the four guide rods are symmetrically fixedly connected to one side of the fixed plate, the limiting plate is fixedly connected to the end of the guide rod away from the fixed plate, the spring is sleeved on the outer wall of the guide rod, the electromagnet is fixedly connected to the inside of the housing through the L-shaped mounting plate, the sliding plate is slidably connected to the inner wall of the housing, the suction plate is fixedly connected to one side of the sliding plate, and the sliding plate is slidably connected to the outer wall of the guide rod.

[0007] As a further preferred embodiment of this technical solution: the position of the stationary contact corresponds to the position of the moving contact, and the electromagnet is attracted to the adsorption disk by magnetic force.

[0008] As a further preferred embodiment of this technical solution: one end of the spring abuts against the limiting plate, and the other end of the spring abuts against the sliding plate.

[0009] As a further preferred embodiment of this technical solution: a controller is installed on the inner bottom wall of the housing, and the signal terminal of the controller is connected to the signal terminal of the electromagnet.

[0010] As a further preferred embodiment of this technical solution, the outer wall of the housing is provided with heat dissipation grooves.

[0011] As a further preferred embodiment of this technical solution: a cover is fixedly connected to one side of the housing, and a first connecting line is fixedly connected to the other side of the housing.

[0012] As a further preferred embodiment of this technical solution: a second connecting line is fixedly connected to one side of the cover.

[0013] As a further preferred embodiment of this technical solution: the first connecting line is connected to the stationary contact via a wire, and the second connecting line is connected to the moving contact via a wire.

[0014] Advantages of this utility model:

[0015] 1. This utility model sends a circuit break signal to the controller through the battery management system of the energy storage power station. The controller controls the electromagnet to work. The electromagnet uses magnetic force to attract and fix the adsorption plate, and the moving contact separates from the stationary contact, thereby realizing the circuit break lock of the transmission circuit and realizing the interlocking control of the energy storage power station for storing and releasing electrical energy.

[0016] 2. This utility model connects to the battery management system through a controller. The controller controls the working state of the electromagnet according to the on / off signal, and can quickly disconnect or connect the power transmission circuit, thereby realizing the interlocking control of the energy storage power station on the storage and release of electrical energy. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0019] Figure 2 This is an exploded view of the overall structure of this utility model;

[0020] Figure 3 This is a schematic diagram of the control component structure of this utility model;

[0021] Figure 4 This is a schematic diagram of the static contact structure of this utility model;

[0022] Figure 5 This is a schematic diagram of the moving contact structure of this utility model.

[0023] In the diagram: 101, control component; 11, housing; 12, mounting plate; 13, stationary contact; 14, guide rod; 15, spring; 16, limit plate; 17, moving contact; 18, suction plate; 19, L-shaped mounting plate; 20, electromagnet; 21, sliding plate; 22, controller; 23, heat dissipation slot; 31, cover; 32, first connecting line; 33, second connecting line. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0025] Example

[0026] Please see Figures 1-5 This utility model provides a technical solution: an energy storage charging and discharging mechanical interlocking device, including a control component 101, which includes a housing 11, a fixing plate 12, a stationary contact 13, four guide rods 14, a spring 15, a limiting plate 16, a moving contact 17, an adsorption plate 18, an L-shaped mounting plate 19, an electromagnet 20, and a sliding plate 21.

[0027] The stationary contact 13 is fixedly connected to the inside of the fixed plate 12, the fixed plate 12 is fixedly connected to the inside of the housing 11, and the moving contact 17 is fixedly connected to the inside of the sliding plate 21. The position of the stationary contact 13 corresponds to the position of the moving contact 17. The end of the stationary contact 13 near the moving contact 17 is provided with an inner groove structure, and the end of the moving contact 17 near the stationary contact 13 is provided with an outer protrusion structure. The shapes of the inner groove structure and the outer protrusion structure are adapted to each other, so that when the moving contact 17 contacts the stationary contact 13, there is a large contact area, which ensures the power transmission efficiency.

[0028] Four guide rods 14 are symmetrically fixedly connected to one side of the fixed plate 12. The limiting plate 16 is fixedly connected to the end of the guide rod 14 away from the fixed plate 12. The sliding plate 21 is slidably connected to the outer wall of the guide rod 14. The position of the sliding plate 21 can be limited by the guide rod 14. When the moving contact 17 slides with the sliding plate 21, the moving contact 17 can accurately couple with the stationary contact 13.

[0029] Spring 15 is sleeved on the outer wall of guide rod 14. Electromagnet 20 is fixedly connected to the inside of housing 11 through L-shaped mounting plate 19. Sliding plate 21 is slidably connected to the inner wall of housing 11. Adsorption plate 18 is fixedly connected to one side of sliding plate 21. Electromagnet 20 is attracted to adsorption plate 18 by magnetic force. When it is necessary to cut off the power transmission circuit, electromagnet 20 is energized and works. Electromagnet 20 attracts and fixes adsorption plate 18 by magnetic force. Adsorption plate 18 drives sliding plate 21. Sliding plate 21 drives moving contact 17. Moving contact 17 separates from stationary contact 13, thereby cutting off the power transmission circuit.

[0030] In this embodiment, specifically: one end of the spring 15 abuts against the limiting disk 16, and the other end of the spring 15 abuts against the sliding plate 21. When the energy storage battery is in normal condition and needs to transmit electrical energy (including the storage and release of electrical energy), the electromagnet 20 is de-energized. Under the push of the spring 15, the sliding plate 21 slides along the guide rod 14, and the moving contact 17 and the stationary contact 13 are coupled to achieve circuit conduction.

[0031] In this embodiment, specifically: a controller 22 is installed on the inner bottom wall of the housing 11. The signal terminal of the controller 22 is connected to the signal terminal of the electromagnet 20. The model of the controller 22 is: OHR-PR10.

[0032] The signal terminal of the controller 22 is connected to the battery management system of the energy storage power station. During operation, when the energy storage power station is charging and discharging, the battery management system controls the on / off status of the power transmission circuit according to the state of the energy storage battery. For example, when the battery temperature is abnormal, the current and voltage are abnormal, or the power is too low, the battery management system sends a circuit breaker signal to the controller 22. The controller 22 controls the electromagnet 20 to work, thereby realizing circuit breaker locking and realizing the interlocking control of the energy storage power station for storing and releasing electrical energy.

[0033] In this embodiment, specifically: a heat dissipation groove 23 is provided on the outer side wall of the housing 11, through which the heat dissipation groove 23 can dissipate heat for the entire device.

[0034] In this embodiment, specifically: a cover 31 is fixedly connected to one side of the housing 11, a first connecting line 32 is fixedly connected to the other side of the housing 11, and a second connecting line 33 is fixedly connected to one side of the cover 31. The first connecting line 32 is connected to the stationary contact 13 through a wire, and the second connecting line 33 is connected to the moving contact 17 through a wire. The first connecting line 32 and the second connecting line 33 are connected to the power transmission circuit of the energy storage power station, so that when the device is working, the interlocking control of storing and releasing electrical energy can be realized.

[0035] In terms of working principle or structural principle, during the charging and discharging process of the energy storage power station, the battery management system controls the on / off status of the power transmission circuit according to the state of the energy storage battery. For example, when the battery temperature is abnormal, the current and voltage are abnormal, or the power is too low, the battery management system sends a circuit breaker signal to the controller 22. The controller 22 controls the electromagnet 20 to work. The electromagnet 20 uses magnetic force to attract and fix the adsorption plate 18. The adsorption plate 18 drives the sliding plate 21, and the sliding plate 21 drives the moving contact 17. The moving contact 17 separates from the stationary contact 13, thereby realizing the circuit breaker lock of the transmission circuit and realizing the interlocking control of the energy storage power station for storing and releasing electrical energy.

[0036] When the battery is in a normal state, the battery management system sends a circuit signal to the controller 22. At this time, the electromagnet 20 is de-energized. Under the push of the spring 15, the sliding plate 21 slides along the guide rod 14, and the moving contact 17 and the stationary contact 13 are coupled to achieve the conduction of the power transmission circuit so that the energy storage station can charge or discharge normally.

[0037] Compared with the prior art, this utility model connects to the battery management system through the controller 22. The controller 22 controls the working state of the electromagnet 20 according to the on / off signal, and can quickly disconnect or connect the power transmission circuit, thereby realizing the interlocking control of the energy storage power station on the storage and release of electrical energy.

[0038] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A mechanical interlocking device for energy storage charging and discharging, characterized in that, The control component (101) includes a housing (11), a fixing plate (12), a stationary contact (13), four guide rods (14), a spring (15), a limiting plate (16), a moving contact (17), an adsorption plate (18), an L-shaped mounting plate (19), an electromagnet (20), and a sliding plate (21). The stationary contact (13) is fixedly connected to the inside of the fixed plate (12), the fixed plate (12) is fixedly connected to the inside of the housing (11), the moving contact (17) is fixedly connected to the inside of the sliding plate (21), the four guide rods (14) are symmetrically fixedly connected to one side of the fixed plate (12), the limiting plate (16) is fixedly connected to the end of the guide rod (14) away from the fixed plate (12), the spring (15) is sleeved on the outer side wall of the guide rod (14), the electromagnet (20) is fixedly connected to the inside of the housing (11) through the L-shaped mounting plate (19), the sliding plate (21) is slidably connected to the inner side wall of the housing (11), the adsorption plate (18) is fixedly connected to one side of the sliding plate (21), and the sliding plate (21) is slidably connected to the outer side wall of the guide rod (14).

2. The energy storage charging and discharging mechanical interlocking device according to claim 1, characterized in that, The position of the stationary contact (13) corresponds to the position of the moving contact (17), and the electromagnet (20) is attracted to the adsorption disk (18) by magnetic force.

3. The energy storage charging and discharging mechanical interlocking device according to claim 2, characterized in that, One end of the spring (15) abuts against the limiting plate (16), and the other end of the spring (15) abuts against the sliding plate (21).

4. The energy storage charging and discharging mechanical interlocking device according to claim 1, characterized in that, A controller (22) is installed on the inner bottom wall of the housing (11), and the signal terminal of the controller (22) is connected to the signal terminal of the electromagnet (20).

5. The energy storage charging and discharging mechanical interlocking device according to claim 4, characterized in that, The outer wall of the casing (11) is provided with heat dissipation grooves (23).

6. The energy storage charging and discharging mechanical interlocking device according to claim 1, characterized in that, A cover (31) is fixedly connected to one side of the housing (11), and a first connecting line (32) is fixedly connected to the other side of the housing (11).

7. The energy storage charging and discharging mechanical interlocking device according to claim 6, characterized in that, A second connecting line (33) is fixedly connected to one side of the cover (31).

8. The energy storage charging and discharging mechanical interlocking device according to claim 7, characterized in that, The first connecting line (32) is connected to the stationary contact (13) through a wire, and the second connecting line (33) is connected to the moving contact (17) through a wire.

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