PCS module integrating high-voltage box and BMS

Abstract

The utility model relates to the technical field of storage battery energy storage systems, and discloses a PCS module integrating a high-voltage box and a BMS, the PCS module comprises a PCS module body, the PCS module body comprises a casing, a front panel and a front sealing plate, the middle of the front surface of the casing is in threaded connection with the front panel, and one corner of the lower part of the front surface of the front panel is connected with the front sealing plate in a penetrating manner; one side of the lower end in the machine shell is connected with an internal power source through internal threads, one side of the internal power source is provided with a BMS module, one end of the internal power source is in threaded connection with a power supply, one side of the lower end in the machine shell is connected with a fuse through external threads, one side of the fuse is in threaded connection with a circuit breaker, and one end of the fuse is in threaded connection with a direct current Hall. According to the utility model, the PCS module integrates the functions of the BMS module and the high-voltage box, so that redundant devices are reduced, the cost is reduced, and the design and installation difficulty of the energy storage cabinet is also reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to a battery energy storage system technical field, concretely is a kind of PCS module integrated high voltage box and BMS. BACKGROUND

[0002] Energy storage system is mainly composed of energy storage converter (PCS), battery management system (BMS) and high voltage box and other core components, these components play different roles in energy storage system respectively, and jointly ensure the safe, stable and efficient operation of energy storage system. Among them, energy storage converter (PCS) is a kind of charge and discharge equipment that can control the charging and discharging process of battery, which can convert AC and DC, and can directly power AC load in the absence of power grid.

[0003] However, in the prior art, the PCS module does not integrate the BMS and high voltage box functions, in addition to the PCS module being installed in the energy storage cabinet, the BMS and high voltage box need to be designed with corresponding space sizes to install these components, so that the design and installation of the cabinet are relatively complex, the space occupied is relatively high, and the cost of the entire system is relatively high. UTILITY MODEL CONTENTS

[0004] The utility model aims at providing a kind of PCS module integrated high voltage box and BMS to solve the above background art, in the prior art, the PCS module does not integrate the BMS and high voltage box functions, in addition to the PCS module being installed in the energy storage cabinet, the BMS and high voltage box need to be designed with corresponding space sizes to install these components, so that the design and installation of the cabinet are relatively complex, the space occupied is relatively high, and the cost of the entire system is relatively high.

[0005] To solve the above technical problems, the utility model is realized by the following technical solutions:

[0006] The utility model is a kind of PCS module integrated high voltage box and BMS, including PCS module body, the PCS module body includes shell, front panel and front seal plate, the shell front middle part is screw-threaded connection with front panel, and one corner of the lower part of the front panel front is connected with front seal plate through penetration;

[0007] The side of the lower end of the shell interior is screw-threaded connection with internal power supply, and the side of internal power supply is equipped with BMS module, one end of internal power supply is screw-threaded connection with power supply, the side of the lower end of the shell interior is screw-threaded connection with fuse, and the side of fuse is screw-threaded connection with circuit breaker, one end of fuse is screw-threaded connection with direct current hall.

[0008] Further, the two sides of the upper part of the front of the shell are provided with AC / DC power terminals, and one corner of the upper part of the front of the shell is provided with communication and power terminals, and a BMS power switch is connected between the AC / DC power terminals, and a DC circuit breaker handle is provided below the BMS power switch.

[0009] Further, the two sides of the front end of the front panel are fixedly connected with hanging ears, and screw holes extending into the shell are provided in the middle of the upper and lower ends of the hanging ears, and a front pull handle is fixedly connected to the middle of the front surface of the hanging ear.

[0010] Further, the upper end of the shell is threadedly connected with an upper cover plate, and the other end of the shell is threadedly connected with an inductance plate, the middle of the rear end of the shell is threadedly connected with a rear panel, and the end of the outer side of the rear panel is fixedly connected with a rear pull handle.

[0011] Further, the middle of the inner wall of the shell is threadedly connected with a mounting frame, and the middle of the inner wall of the mounting frame is fixedly connected with a mounting middle plate, the middle of the upper end of the mounting middle plate is threadedly connected with a control panel, one side of the upper end of the control panel is electrically connected with a capacitor plate, one corner of the other side of the upper end of the control panel is electrically connected with a filter plate, and the other corner of the other side of the upper end of the control panel is electrically connected with an auxiliary source plate, and one corner of the upper end of the control panel is threadedly connected with a copper bar.

[0012] Further, one side of the middle of the lower end of the mounting middle part is threadedly connected with a heat sink, and one side of the heat sink is threadedly connected with a bracket, and one end of the bracket is fixedly connected with a heat dissipation fan.

[0013] The utility model has the following beneficial effects:

[0014] Firstly, the BMS module, the circuit breaker and the fuse are arranged in the utility model, the BMS module, the circuit breaker and the fuse are arranged in the original PCS module, the PCS module integrates the functions of the BMS module and the high-voltage box, and the three-in-one design reduces redundant devices and cost, and simultaneously reduces the design and installation difficulty of the energy storage cabinet.

[0015] Secondly, based on the above beneficial effects, the front sealing plate is arranged, one corner of the front of the front panel is provided with the front sealing plate, the front sealing plate is connected in a threaded mode, during maintenance and repair of the heat dissipation fan, the front sealing plate can be directly disassembled, the front panel or the whole machine part does not need to be disassembled, the maintenance and repair operation intensity is reduced, the maintenance and repair efficiency is improved, and use is facilitated. BRIEF DESCRIPTION OF DRAWINGS

[0016] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for describing the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0017] Figure 1 This is a schematic diagram of the entire machine of the utility model;

[0018] Figure 2 This is an explosion diagram of the utility model;

[0019] Figure 3 This is a top view of the bottom interior of the casing of the present invention.

[0020] In the accompanying drawings, the components represented by the reference numerals are as follows:

[0021] In the figure: 1. Front panel; 2. AC and DC power terminals; 3. Casing; 4. Upper cover; 5. Front sealing plate; 6. Front handle; 7. Mounting ear; 8. Cooling fan; 9. Bracket; 10. DC circuit breaker handle; 11. Communication and power terminals; 12. Radiator; 13. Mounting frame; 14. Inductor board; 15. Auxiliary source board; 16. Mounting middle board; 17. Copper busbar; 18. Control board; 19. Filter board; 20. Rear panel; 21. Capacitor board; 22. BMS power switch; 23. Rear handle; 24. Power supply; 25. Internal power supply; 26. BMS module; 27. Circuit breaker; 28. Fuse; 29. ​​DC Hall. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0023] In order to make the purpose, technical solutions and advantages of the present invention more clear, the embodiments of the present invention will be described in further detail below with reference to the accompanying drawings.

[0024] See also Figure 1-3 As shown, the present invention is a PCS module integrating a high-voltage box and a BMS, including a PCS module body, which includes a housing 3, a front panel 1, and a front cover 5. The front panel 1 is threadedly connected to the middle of the front of the housing 3, and the front cover 5 is connected to a lower corner of the front of the front panel 1.

[0025] The upper end of the housing 3 is threadedly connected to the upper cover plate 4, and the other end of the housing 3 is internally threadedly connected to the inductor plate 14. The middle of the rear end of the housing 3 is threadedly connected to the rear panel 20, and the outer end of the rear panel 20 is fixedly connected to the rear handle 23;

[0026] The PCS module body is a charging and discharging device used to control the charging and discharging process of the battery. It can perform AC / DC conversion and can directly power AC loads in the absence of a power grid. The casing 3 provides an installation environment and is used in conjunction with the front panel 1, rear panel 20 and upper cover 4 to meet the external protection of the internal structure. The front cover 5 can be removed and used to inspect and maintain the cooling fan 8. The rear handle 23 can apply force to the PCS module body when transporting it. The functions of the inductor plate 14 mainly include filtering, oscillation, delay, trapping, stabilizing current and suppressing electromagnetic interference.

[0027] An internal power supply 25 is connected to one side of the lower end of the housing 3 by an internal thread, and a BMS module 26 is arranged on one side of the internal power supply 25. One end of the internal power supply 25 is threadedly connected to the power supply 24. A fuse 28 is connected to one side of the lower end of the housing 3 by an external thread, and one side of the fuse 28 is threadedly connected to a circuit breaker 27. One end of the fuse 28 is threadedly connected to a DC Hall 29.

[0028] The internal power supply 25 is mainly used to provide a stable DC power supply for the control circuits, sensors, etc. inside the module. The power supply 24 refers to the power input from the outside to the PCS module body, usually AC or DC, which is used to drive the operation of the entire PCS module body, including inversion, rectification, etc. The BMS module 26 is mainly used to improve the utilization rate of the battery, prevent the battery from overcharging and over-discharging, extend the battery life, and monitor the battery status. The fuse 28 and circuit breaker 27 are both used for circuit protection inside the PCS module body. The functions of the DC Hall 29 mainly include magnetic field measurement, position detection and current detection.

[0029] AC and DC power terminals 2 are provided on both sides of the upper front of the casing 3, and a communication and power terminal 11 is provided at one corner of the upper front of the casing 3. A BMS power switch 22 is connected between the AC and DC power terminals 2 on one side, and a DC circuit breaker 27 handle 10 is provided below the BMS power switch 22.

[0030] The functions of the AC and DC power terminals 2 mainly include connecting circuits, transmitting electrical energy, realizing control and protection functions, and facilitating wiring, etc. The functions of the communication and power terminals 11 mainly include connecting circuits, transmitting signals, realizing control and protection functions, and facilitating wiring, etc. The BMS power switch 22 is used for the power on and off operations of the BMS module 26, and the DC circuit breaker 27 handle 10 is used to open and close the DC circuit breaker 27.

[0031] The front ends of both sides of the front panel 1 are fixedly connected with hanging ears 7, and the middle of the upper and lower ends of the hanging ears 7 are penetrated by threaded holes extending into the housing 3, and the middle of the front of the hanging ears 7 is fixedly connected with a front handle 6;

[0032] The mounting ears 7 cooperate with the threaded holes to fix the PCS module body structure after using external screws, and the front handle 6 is used to apply force when the PCS module body is transported.

[0033] The middle part of the inner wall of the housing 3 is threadedly connected to the mounting frame 13, and the middle part of the inner wall of the mounting frame 13 is fixedly connected to the mounting middle plate 16. The middle part of the upper end of the mounting middle plate 16 is threadedly connected to the control board 18, and one side of the upper end of the control board 18 is electrically connected to the capacitor plate 21. One corner on the other side of the upper end of the control board 18 is electrically connected to the filter board 19, and the other corner on the other side of the upper end of the control board 18 is electrically connected to the auxiliary source board 15. A copper busbar 17 is equidistantly threaded to one corner of the upper end of the control board 18.

[0034] The mounting frame 13 is used in conjunction with the mounting middle plate 16 to meet the installation requirements of the control board 18, copper busbar 17, bracket 9, filter board 19 and auxiliary source board 15 structures. The control board 18 performs data processing and analysis, the copper busbar 17 is used for wiring and power connection, the functions of the filter board 19 and the capacitor board 21 mainly include signal processing, noise suppression, frequency selection and equipment protection, etc. The functions of the auxiliary source board 15 mainly include providing backup power supply, improving system reliability, preventing data loss and ensuring safety, etc.

[0035] A radiator 12 is threadedly connected to one side of the middle portion of the lower end of the installation, and a bracket 9 is threadedly connected to one side of the radiator 12. A cooling fan 8 is fixedly connected to one end of the bracket 9 at an equal distance.

[0036] The bracket 9 is used to structurally install the cooling fan 8 , and the cooling fan 8 and the radiator 12 are used to meet the heat dissipation requirements within the PCS module body.

[0037] Working principle: First, install the cooling fan 8 on the bracket 9 to make a fan assembly; assemble the radiator 12, the mounting frame 13, and the capacitor plate 21 together to make a capacitor plate 21 assembly; install the front handle 6, the hanging ear 7, the DC circuit breaker 27 handle 10, and the communication and power terminals 11 on the front panel 1 to make a front panel 1 assembly; the inductor plate 14 is locked to the casing 3 with a combination screw, and then the upper and lower copper busbars 17 are installed, and then the fan assembly is installed into the casing 3 and locked; then install the capacitor plate 21 assembly, install the middle plate 16, and then install the rear panel 20, AC and DC power terminals 2, auxiliary source board 15, control board 18, filter board 19, and front panel 1 assembly; then install the BMS module 26, internal power supply 25, circuit breaker 27, fuse 28, DC Hall 29 and power supply 24 in the chassis, connect all the cables in sequence, cover the upper cover 4, and tighten the screws to complete the assembly of the entire module.

[0038] This solution integrates the functions of the BMS module 26 and the high-voltage box into a three-in-one PCS module, which reduces redundant components and reduces costs. It also reduces the difficulty of designing and installing the energy storage cabinet. There is no need to remove the front panel 1 or the entire machine components, which reduces the intensity of inspection and maintenance work, improves inspection and maintenance efficiency, and facilitates use.

[0039] The preferred embodiments of the present invention disclosed above are intended only to help illustrate the present invention. The preferred embodiments do not describe all details in detail, nor do they limit the present invention to the specific embodiments described. Obviously, many modifications and variations are possible based on the contents of this specification. These embodiments are selected and described in detail in this specification to better explain the principles and practical applications of the present invention, thereby enabling those skilled in the art to better understand and utilize the present invention. The present invention is limited only by the claims and their full scope and equivalents.

Claims

1. A PCS module integrating a high-voltage box and a BMS, characterized in that: The PCS module comprises a body, wherein the body comprises a housing (3), a front panel (1) and a front cover (5); the front panel (1) is threadedly connected to the middle of the front of the housing (3); and the front cover (5) is connected to a lower corner of the front of the front panel (1); An internal power supply (25) is connected to one side of the lower end of the housing (3) by means of an internal thread, and a BMS module (26) is arranged on one side of the internal power supply (25), one end of the internal power supply (25) is threadedly connected to a power supply (24), a fuse (28) is connected to one side of the lower end of the housing (3) by means of an external thread, and one side of the fuse (28) is threadedly connected to a circuit breaker (27), and one end of the fuse (28) is threadedly connected to a DC Hall (29).

2. The PCS module integrating a high-voltage box and a BMS according to claim 1, characterized in that: AC and DC power terminals (2) are provided on both sides of the upper front portion of the housing (3), and a communication and power terminal (11) is provided at a corner of the upper front portion of the housing (3). A BMS power switch (22) is provided between the AC and DC power terminals (2) on one side, and a DC circuit breaker (27) handle (10) is provided below the BMS power switch (22).

3. The PCS module integrating a high-voltage box and a BMS according to claim 1, characterized in that: The front ends of both sides of the front panel (1) are fixedly connected with hanging ears (7), and the middle parts of the upper and lower ends of the hanging ears (7) are penetrated by threaded holes extending into the housing (3), and the middle part of the front of the hanging ears (7) is fixedly connected with a front handle (6).

4. The PCS module integrating a high-voltage box and a BMS according to claim 1, characterized in that: The upper end of the casing (3) is threadedly connected to an upper cover plate (4), and the other end inside the casing (3) is connected to an inductor plate (14) by an internal thread. The middle part of the rear end of the casing (3) is threadedly connected to a rear panel (20), and the outer end of the rear panel (20) is fixedly connected to a rear handle (23).

5. The PCS module integrating a high-voltage box and a BMS according to claim 1, characterized in that: The middle portion of the inner wall of the housing (3) is threadedly connected to a mounting frame (13), and the middle portion of the inner wall of the mounting frame (13) is fixedly connected to a mounting middle plate (16), the middle portion of the upper end of the mounting middle plate (16) is threadedly connected to a control board (18), and one side of the upper end of the control board (18) is electrically connected to a capacitor plate (21), one corner on the other side of the upper end of the control board (18) is electrically connected to a filter board (19), and the other corner on the other side of the upper end of the control board (18) is electrically connected to an auxiliary source board (15), and one corner on the upper end of the control board (18) is equidistantly threadedly connected to a copper busbar (17).

6. The PCS module integrating a high-voltage box and a BMS according to claim 5, characterized in that: A radiator (12) is threadedly connected to one side of the middle portion of the lower end of the installation middle portion, and a bracket (9) is threadedly connected to one side of the radiator (12), and a cooling fan (8) is fixedly connected to one end of the bracket (9) at equal distances.

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