Hybrid integrated device of inverter, battery pack and control system

Abstract

The invention relates to the technical field of photovoltaic energy storage equipment, and discloses hybrid integrated equipment of an inverter, a battery pack and a control system, which comprises a shell, a battery part mounted in the shell, a wall-type frame arranged at the top of the shell, an inverter main part mounted on the front side of the wall-type frame in a hanging manner, and a top plate mounted at the top of the shell and positioned at the top of the inverter main part, an opening is formed in the back of the casing and is sealed by a back plate; the bottom of the inverter main device is provided with a BOS part, and the BOS part is used for enhancing the safety of the BOS part. The battery, the BMS, the switch equipment, the inverter and the software control unit are integrated into an integrated seamless design, so that equipment installation and wiring are more convenient, photovoltaic power generation is sent to the battery for storage and standby through the equipment by adopting a cloud platform for unified management, or photovoltaic power generation and redundant power generation are sent to a power grid and are transmitted to places needing the photovoltaic power generation, multiple effects are achieved, and the system is suitable for large-scale popularization and application. The problem that centralized management is inconvenient due to independent work of the inverter is solved.

Description

Technical Field

[0001] The present invention relates to the technical field of photovoltaic energy storage equipment, and more specifically to a hybrid integrated device of an inverter, a battery pack and a control system. Background Art

[0002] Photovoltaic power storage, also known as photovoltaic energy storage, is a way of energy utilization that combines solar photovoltaic power generation with energy storage technology. The photovoltaic energy storage system converts solar energy into electrical energy through photovoltaic panels, and uses energy storage devices (such as battery packs) to store this electrical energy so that it can supply electricity when needed. Specifically, when sunlight hits the photovoltaic panel, the photons interact with the atoms in the semiconductor material to generate photogenerated carriers (free electrons and holes). These carriers are separated and collected under the action of the internal electric field, thereby forming an electric current, realizing the conversion of light energy to electrical energy. The generated electrical energy is then sent to the energy storage device for storage.

[0003] As energy and environmental issues have become a global focus, distributed power generation represented by photovoltaic energy storage systems has been widely used in microgrids. Centralized management is inconvenient, especially the inverter working alone is not convenient for centralized management, and safety issues need to be urgently addressed. Summary of the invention

[0004] In order to overcome the above-mentioned defects of the prior art, the present invention provides a hybrid integrated device of an inverter, a battery pack and a control system to solve the problems of decentralized assembly and inconvenient management and control of current photovoltaic energy storage equipment and insufficient circuit safety in the above-mentioned background technology.

[0005] The present invention provides the following technical solution: a hybrid integrated device of an inverter, a battery pack and a control system, comprising a casing, a battery part is installed inside the casing, a wall frame is arranged on the top of the casing, an inverter main part is suspended and installed on the front of the wall frame, a top plate is arranged on the top of the casing located on the top of the inverter main part, an opening is arranged on the back of the casing and is covered by a back plate, the back of the casing is extended to the back of the wall frame and side plates are arranged on both sides and fixedly installed on both sides of the wall frame, support frames for bearing the weight of the inverter main part are arranged on both sides of the front of the wall frame, and wiring operation windows are arranged on the bottom of the inverter main part located on the front and both sides of the casing; The wiring operation windows on both sides of the housing are covered by two side covers, and the wiring operation window on the front of the housing is covered by a front cover, and the side covers and the front cover are provided to hide the wiring terminals; The inverter main part is provided with a BOS part at the bottom, and the BOS part is used to enhance the safety of the BOS part. The inverter main part is used to output AC power to the battery part and the national grid. The battery part integrates the 485 interface of the BMS and the battery pack controlled by the CAN interface; It also includes a DSP control center, which is electrically connected to the inverter main component and is used for energy scheduling.

[0006] Furthermore, it also includes an antenna, a Bluetooth, and a wifi module. The inverter main component port is provided with two photovoltaic input ports, one battery input and output port, one GRID port, one BACKUP port, and five RJ45 ports. The BOS part includes: an air switch, an AC circuit breaker, a BYPASS switch, a battery circuit breaker, and a photovoltaic isolation switch. The inverter main component includes: a BOOST switch circuit, a BUCK / BOOST switch circuit, an LLC switch circuit, and a HERIC topology circuit. The photovoltaic isolation switch is electrically connected to the two photovoltaic input ports, the BOOST switch circuit output end of the inverter main part is connected to the HERIC topology circuit, the HERIC topology circuit output end is electrically connected to the air switch and the AC circuit breaker, the air switch and the AC circuit breaker are electrically connected to the BYPASS switch, the BYPASS switch is electrically connected to the BACKUP port and the GRID port, the GRID port is connected to the national grid, the BOOST switch circuit output end of the inverter main part is connected to the BUCK / BOOST switch circuit and the HERIC topology circuit, the BUCK / BOOST switch circuit is connected to the LLC switch circuit, and the LLC switch circuit output end is electrically connected to the battery port of the battery circuit breaker; The five RJ45 ports are electrically connected to the DSP control center.

[0007] Furthermore, the support frame includes a main frame body, a magnetic locking part is arranged inside the main frame body, two mounting holes extending to the front and back of the front cover plate are arranged inside the front cover plate, magnetic adsorption parts are installed in the two mounting holes, a locking hole a is opened on the front of the main frame body, the magnetic adsorption part is inserted into the locking hole a and is magnetically connected with the magnetic locking part, the magnetic adsorption part and the magnetic locking part are used together to fix the front cover plate, and the magnetic adsorption part is used to trigger the magnetic locking part to lock the opposite cover plate.

[0008] Furthermore, the side cover plate includes two sets of pre-fixed parts, and the two sets of pre-fixed parts have the same structure and are both composed of a right support plate and a left support plate, and the outer sides of the right support plate and the left support plate are respectively attached to the two sides of the inner wall of the main frame; The magnetic locking parts are provided with two groups, and are respectively connected with two groups of prefabricated parts. The magnetic locking parts include a passive block and an active block. The passive block and the active block are fixedly connected by a traction rope. The active block is provided with a magnetic movable rod at one end facing the lock hole a. The passive block is transmission-connected to the inner wall of the main frame at one end facing the transverse center line of the main frame through a tension spring 1. The inner sides of the passive block and the active block are provided with embedded plates, and the outer walls of the right support plate and the left support plate are provided with embedded grooves adapted to the embedded plates.

[0009] Furthermore, the magnetic adsorption component is composed of an insertion end c and a control end b, the control end b is rotatably sleeved in the mounting hole of the front cover plate, a special-shaped notch is provided at one end of the control end b, the insertion end c includes a cylindrical plug block, a side wall of the cylindrical plug block is provided with an annular groove, a magnetic inner ring is fixedly connected in the annular groove, and the side wall of the magnetic inner ring is provided with two arc-shaped slope blocks.

[0010] Furthermore, the control end b includes a knob, a side wall of the knob is fixedly connected to a wall ring, and the wall ring is transmission-connected to the inner wall of the mounting hole of the front cover plate via a torsion spring.

[0011] Furthermore, a positioning slide block is fixedly connected to the side wall of the wall ring, an arc-shaped positioning groove is arranged on the inner wall of the mounting hole of the front cover plate, and the positioning slide block is slidably sleeved in the arc-shaped positioning groove.

[0012] Furthermore, the side wall of the knob is also provided with an arc-shaped protrusion, the inner wall of the front cover plate mounting hole is provided with an arc-shaped slide groove, the arc-shaped protrusion is slidably sleeved in the arc-shaped slide groove, the front side of the front cover plate is provided with a column hole connected to the arc-shaped slide groove, a press button is slidably sleeved in the column hole, and the outer wall of the arc-shaped protrusion is provided with a pin hole, and a pin shaft is connected in the pin hole through a spring transmission.

[0013] Furthermore, an expansion opening d is provided at the end of the column hole of the positive cover plate, the diameter of the pin shaft matches the expansion opening d, the diameter of the push button is smaller than the expansion opening d, an expansion hole e is provided on the inner wall of the column hole of the positive cover plate, and an anti-slip disk is fixedly connected to the side wall of the push button, and the anti-slip disk is transmission-connected to the inner wall of the expansion hole e through a tension spring 2.

[0014] Furthermore, the battery part and the back of the wall frame are both provided with wiring channels, and the top of the casing is provided with a through groove for connecting the battery part and the wiring channel on the back of the wall frame, and a cooling fan is provided on the back of the inverter main part.

[0015] Technical effects and advantages of the present invention: The present invention integrates batteries, BMS, switchgear, inverters and software control units into an integrated seamless design, making equipment installation and wiring more convenient. The cloud platform is used for unified management to send photovoltaic power generation through the equipment to the battery for storage and backup, or for home use. The excess is sent to the power grid and delivered to where it is needed, achieving multiple functions. The problem that the inverter working alone is inconvenient for centralized management is solved, and the safety of the inverter is enhanced by setting the BOS part.

[0016] On the basis of the above, a wiring operation window and a wiring channel are provided to make the equipment more convenient during wiring and wiring. The wiring operation window is closed and hidden by two side covers and a front cover. When the magnetic adsorption component is magnetically connected to the magnetic locking component, the front cover can be magnetically fixed. At the same time, the magnetic adsorption component triggers the magnetic locking component to lock the position of the side cover. Thus, the side cover and the front cover are fixed by the magnetic adsorption component and the magnetic locking component. Compared with the traditional fixing method of bolts and screws, it is more convenient and quick to install and remove the side cover and the front cover for maintenance of the line; On the basis of the above, the magnetic adsorption component is set as the insertion end c and the control end b. Through the shape design of the insertion end c, when the magnetic adsorption component and the magnetic locking component form a magnetic connection, the magnetic locking component can achieve a locking effect on the insertion end c, thereby locking the position of the magnetic adsorption component, thereby achieving the effect of reinforcing the connection of the front cover plate to prevent it from falling off. At the same time, through the structural setting of the insertion end c and the control end b, the insertion end c can be quickly unlocked. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 It is an exploded schematic diagram of the overall structure of the present invention; Figure 3 For the present invention Figure 2 Schematic diagram of the supporting frame and front cover structure; Figure 4 For the present invention Figure 3 A schematic diagram of the structure of the magnetic lock fastener; Figure 5 For the present invention Figure 3 Schematic diagram of the magnetic adsorption structure; Figure 6 For the present invention Figure 5 Schematic diagram of the insertion end c structure; Figure 7 For the present invention Figure 5 The schematic diagram of the control terminal b structure in FIG. Figure 8 For the present invention Figure 7 Schematic diagram of the local structure of the knob; Fig. 9 For the present invention Figure 1 Schematic diagram of the inverter circuit structure.

[0018] The accompanying drawings are marked as follows: 1, housing; 2, battery part; 3, inverter main part; 4, wall frame; 5, support frame; 6, back plate; 7, side cover plate; 8, front cover plate; 9, top plate; 10, antenna, Bluetooth, wifi module; 31, BOS part; 51, main frame; 52, magnetic lock fastener; 81, magnetic adsorption part; 71, right support plate; 72, left support plate; 521, passive block; 522, active block ; 523, traction rope; 524, magnetic moving rod; 525, panel; 526, tension spring one; 811, cylindrical plug; 812, magnetic inner ring; 813, arc-shaped slope block; 814, wall ring; 815, torsion spring; 816, positioning slider; 817, knob; 818, arc-shaped protrusion; 819, push button; 8110, anti-slip disk; 8111, tension spring two; 8112, pin shaft; 8113, spring. DETAILED DESCRIPTION

[0019] The specific implementation modes of the present invention are described in detail below with reference to the accompanying drawings.

[0020] Reference Figure 1 and Figure 2 The present invention provides a hybrid integrated device of an inverter, a battery pack and a control system, comprising a housing 1, a battery part 2 is installed inside the housing 1, a wall frame 4 is arranged on the top of the housing 1, an inverter main part 3 is suspended and installed on the front of the wall frame 4, a top plate 9 is arranged on the top of the housing 1 located on the top of the inverter main part 3, an opening is arranged on the back of the housing 1 and is covered by a back plate 6, the back of the housing 1 is extended to the back of the wall frame 4 and side plates are arranged on both sides and fixedly installed on both sides of the wall frame 4, support frames 5 for bearing the load of the inverter main part 3 are arranged on both sides of the front of the wall frame 4, and the bottom of the inverter main part 3 is located on the front and both sides of the housing 1. A wiring operation window is provided; the wiring operation windows on both sides of the casing 1 are covered by two side covers 7, and the wiring operation window on the front of the casing 1 is covered by a front cover 8, and the side covers 7 and the front cover 8 are provided to hide the wiring terminals; a BOS part 31 is provided at the bottom of the inverter main part 3, and the BOS part 31 is used to enhance the safety of the BOS part 31. The inverter main part 3 is used to output AC power to the battery part 2 and the national grid. The battery part 2 integrates the 485 interface of the BMS and the battery pack controlled by the CAN interface; it also includes a DSP control center, the DSP control center is electrically connected to the inverter main part 3, and the DSP control center is used for energy scheduling.

[0021] The battery part 2, the inverter main part 3 and the BOS part 31 are integrated into one by means of the casing 1, the wall frame 4, the support frame 5 and the top plate 9, so that the equipment assembly is more convenient and unified management is facilitated. The setting of the wiring operation window makes the device wiring process more convenient and also facilitates the management and maintenance of the line. The side cover plate 7 and the front cover plate 8 are provided to hide the wiring terminals to enhance the aesthetics of the equipment.

[0022] Reference Figure 1 , 9 , also includes antenna, Bluetooth, wifi module 10, the inverter main part 3 port is provided with two photovoltaic input ports, one battery input and output port, one GRID port, one BACKUP port, five RJ45 ports, the BOS part 31 includes: air switch, AC circuit breaker, BYPASS switch, battery circuit breaker, and photovoltaic isolation switch, the inverter main part 3 includes: BOOST switch circuit, BUCK / BOOST switch circuit, LLC switch circuit, HERIC topology circuit; the photovoltaic isolation switch is electrically connected to the two photovoltaic input ports, and the output end of the BOOST switch circuit of the inverter main part 3 is connected to the HE The RIC topology circuit is connected, the output end of the HERIC topology circuit is electrically connected to the air switch and the AC circuit breaker, the air switch and the AC circuit breaker are electrically connected to the BYPASS switch, the BYPASS switch is electrically connected to the BACKUP port and the GRID port, the GRID port is connected to the national grid, the output end of the BOOST switch circuit of the inverter main component 3 is connected to the BUCK / BOOST switch circuit and the HERIC topology circuit, the BUCK / BOOST switch circuit is connected to the LLC switch circuit, and the output end of the LLC switch circuit is electrically connected to the battery port of the battery circuit breaker; the five RJ45 ports are electrically connected to the DSP control center.

[0023] The inverter system circuit mainly includes photovoltaic modules that are input from two photovoltaic input ports through the photovoltaic isolation switch of the BOS part 31. The equipment uses the MPPT algorithm and the dual-input balancing algorithm to optimize the photovoltaic energy output, and controls the boost voltage through the closed-loop control of the BOOST switch circuit, so that the energy exists in a dynamic constant voltage state. This dynamic constant voltage is referred to as the bus voltage. On the one hand, the bus uses the PI algorithm to control the inverter AC output through the HERIC topology circuit. One AC path is directly output to the circuit breaker of the BOS part 31 off-grid, and is output to the BACKUP port through the BAYPASS switch. The other path can use the frequency-locked phase-locked algorithm to output the AC to the AC circuit breaker of the BoS, connect the BYPASS switch, and then send it to the GRID port and merge it into the national grid. On the other hand, the bus voltage can also use the PI control algorithm of the switch control closed loop through the BUCK / BOOST switch circuit and the LLC switch circuit to send the energy to the battery port of the battery circuit breaker connected to the BoS; the battery energy can also be reversed through the LLC switch circuit. The energy of the bus is sent to the GRID port and the BACKUP port through the PI control algorithm. The LLC circuit can make the high-voltage battery and low-voltage battery optional compatible for charging and discharging. The algorithm is implemented by the DSP control center. The capacity allocation method of the PI control algorithm that controls where the energy is sent requires energy scheduling, which uses the interface control center. The scheduling of the interface control center is implemented through the RJ45 interface. The first RJ45 port realizes the reading of the meter energy. The second RJ45 port is used for network connection, and the cloud controls the scheduling command. Of course, it can also be transmitted through the antenna, Bluetooth, and wifi module 10 to realize the reading of the meter energy and the control connection of the battery part to the cloud, and then the cloud controls the scheduling command. The third RJ45 port realizes the control of the battery part. The fourth and fifth RJ45 ports are PART ports, which can realize the grid-connected parallel function, and can also realize the parallel function through the antenna, Bluetooth, and wifi module 10 transmission. The inverter main part 3 has an EMS board and a software part. The inverter main part 3 also includes an LED display and an NFC radio frequency card reader panel. The LED display and the NFC radio frequency card reader panel are connected to the EMS board. The system works in different states by controlling different LED displays through EMS. The software part mainly includes the cloud downloading program upgrades to the local device through the antenna, Bluetooth, wifi module 10 and ETH port. The local device can also upload data to the cloud. The NFC radio frequency card reader panel links the software part by swiping the IC card to identify the identity.

[0024] Reference Figure 2 , 3The support frame 5 includes a main frame body 51, a magnetic lock fastener 52 is arranged inside the main frame body 51, two mounting holes extending to the front and back of the front cover plate 8 are arranged inside the front cover plate 8, and magnetic adsorption components 81 are installed in the two mounting holes. A lock hole a is opened on the front of the main frame body 51, and the magnetic adsorption component 81 is inserted into the lock hole a and magnetically connected with the magnetic lock fastener 52. The magnetic adsorption component 81 and the magnetic lock fastener 52 are used to fix the front cover plate 8. The magnetic adsorption component 81 is used to trigger the magnetic lock fastener 52 to lock the side cover plate 7. The wiring operation windows on the front and both sides of the device can be closed through the two side cover plates 7 and the front cover plate 8. The sealing in three directions using traditional bolt or screw installation methods will make the installation and disassembly process inefficient and inconvenient. However, by setting the magnetic locking component 52 and the magnetic adsorption component 81, the two side cover plates 7 are first placed in the installation position during installation, and then the front cover plate 8 is placed in the installation position. In this process, the magnetic adsorption component 81 is magnetically connected with the magnetic locking component 52 to complete the fixation of the front cover plate 8, and the magnetic effect of the magnetic adsorption component 81 triggers the magnetic locking component 52, so that the magnetic locking component 52 automatically locks the side cover plate 7, thereby making the sealing and unsealing of the wiring operation window more convenient and quick.

[0025] Reference Figure 3 , 4 The side cover plate 7 includes two groups of pre-fixed parts, and the two groups of pre-fixed parts have the same structure and are composed of a right support plate 71 and a left support plate 72. The outer sides of the right support plate 71 and the left support plate 72 are respectively fitted with the two sides of the inner wall of the main frame body 51; there are two groups of magnetic lock fasteners 52, which are respectively docked with the two groups of pre-fixed parts. The magnetic lock fasteners 52 include a passive block 521 and an active block 522. The passive block 521 and the active block 522 are fixedly connected by a traction rope 523. The active block 522 is provided with a magnetic moving rod 524 at one end facing the lock hole a. The passive block 521 is connected to the inner wall of the main frame body 51 through a tension spring 526 at one end facing the transverse midline of the main frame body 51. The inner sides of the passive block 521 and the active block 522 are both provided with an inlay plate 525, and the outer walls of the right support plate 71 and the left support plate 72 are both provided with an inlay groove adapted to the inlay plate 525.

[0026] When the side cover 7 is placed in the installation position, the outer support force of the right support plate 71 and the left support plate 72 of the two sets of pre-fixed components of the side cover 7 on the inner wall of the main frame 51 can achieve a pre-fixing effect on the side cover 7, so that the side cover 7 is stable in the installation position. When the magnetic adsorption component 81 is inserted into the lock hole, the magnetic moving rod 524 is displaced under the effect of magnetic force to form a magnetic connection with the magnetic adsorption component 81 to fix the front cover 8. In this process, the displacement of the magnetic moving rod 524 drives the inlay plate 525 of the side wall of the active block 522 to be displaced, so that it is stuck in the inlay groove of the outer wall of the left support plate 72. The passive block 521 is displaced under the traction effect of the traction rope 523 so that the panel 525 of the side wall is stuck in the groove of the outer wall of the right support plate 71, thereby locking the position of the prefabricated component, thereby achieving the locking effect of the side cover 7. In this way, the side cover 7 and the front cover 8 are quickly installed. When the magnetic adsorption component 81 is pulled out of the lock hole, the panel 525 and the magnetic moving rod 524 are reset in the opposite direction through the pulling effect of the tension spring 526, thereby achieving a quick unlocking effect, so that the side cover 7 and the front cover 8 can be easily disassembled.

[0027] Reference Figure 5 , 6 The magnetic adsorption component 81 is composed of an insertion end c and a control end b. The control end b is rotatably sleeved in the mounting hole of the front cover plate 8. A special-shaped notch is arranged at one end of the control end b. The insertion end c includes a columnar plug block 811. The side wall of the columnar plug block 811 is provided with an annular groove. A magnetic inner ring 812 is fixedly connected in the annular groove. The side wall of the magnetic inner ring 812 is provided with two arc-shaped slope blocks 813.

[0028] The insertion end c of the magnetic adsorption component 81 is inserted into the lock hole a. Under the magnetic attraction of the magnetic inner ring 812, the magnetic movable rod 524 can be moved and inserted into the annular groove of the columnar plug block 811 and connected with the magnetic inner ring 812. The magnetic adsorption component 81 can be locked in the lock hole a through the magnetic movable rod 524. Through this setting, the magnetic adsorption component 81 can automatically complete the locking process when it is magnetically connected, thereby improving the firmness of the installation of the front cover plate 8 to avoid accidental falling off. By rotating the control end b, the insertion end c is driven to rotate. At this time, the magnetic movable rod 524 can slide along the slope of the arc-shaped slope block 813 to adjust the vertical position of the magnetic movable rod 524 until the magnetic movable rod 524 is out of the annular groove of the columnar plug block 811, thereby achieving the unlocking effect. The rotation of the control end b can be controlled by twisting a tool that is adapted to the special-shaped slot.

[0029] Reference Figure 7 The control end b includes a knob 817, and a wall ring 814 is fixedly connected to the side wall of the knob 817. The wall ring 814 is transmission-connected to the inner wall of the mounting hole of the front cover plate 8 through a torsion spring 815.

[0030] By setting the torsion spring 815, the control end b can be reset after rotation through its torque, and the initial angle of the control end b is positioned at the same time, ensuring the initial position of the insertion end c so that the magnetic movable rod 524 is not blocked by the arc slope block 813 when entering the annular groove of the cylindrical plug block 811.

[0031] Reference Figure 7 A positioning slide block 816 is fixedly connected to the side wall of the wall ring 814, and an arc-shaped positioning groove is arranged on the inner wall of the mounting hole of the front cover plate 8, and the positioning slide block 816 is slidably sleeved in the arc-shaped positioning groove.

[0032] By setting the positioning slider 816 to cooperate with the arc-shaped positioning groove, on the one hand, the control end b is prevented from falling off from the mounting hole, and on the other hand, the rotation angle of the control end b is limited to prevent the control end b from rotating too much and causing the magnetic moving rod 524 to slide too far on the slope of the arc-shaped slope block 813 and detach, and also to prevent the torsion spring 815 from being damaged due to excessive torsion angle.

[0033] Reference Figure 8 The side wall of the knob 817 is also provided with an arc-shaped protrusion 818, and the inner wall of the mounting hole of the front cover plate 8 is provided with an arc-shaped slide groove, and the arc-shaped protrusion 818 is slidably sleeved in the arc-shaped slide groove. The front side of the front cover plate 8 is provided with a column hole connected to the arc-shaped slide groove, and a pressing button 819 is slidably sleeved in the column hole. A pin hole is provided on the outer wall of the arc-shaped protrusion 818, and a pin shaft 8112 is connected in the pin hole through a spring 8113.

[0034] Since there are two magnetic adsorption members 81, and the control end b of the magnetic adsorption member 81 will automatically reset after being rotated to unlock, it is inconvenient to operate the two magnetic adsorption members 81 at the same time. By setting a pin shaft 8112, the control end b of the magnetic adsorption member 81 can be locked after being rotated. When the control end b rotates, the arc-shaped protrusion 818 moves following the knob 817, so that the pin shaft 8112 is aligned with the column hole of the front cover plate 8. At this time, it is embedded in the column hole under the elastic effect of the spring 8113. At this time, the position of the arc-shaped protrusion 818 in the arc-shaped slide groove is limited by the pin shaft 8112, so that the arc-shaped protrusion 818 is positioned after the knob 817 is rotated to prevent the control end b from rebounding and resetting. In this way, the two magnetic adsorption members 81 can be operated one by one. After the magnetic adsorption member 81 is moved from the lock hole a After being pulled out, the push button 819 is pressed to push the pin 8112, thereby making the pin 8112 disengage from the column hole of the front cover plate 8, and the control end b rebounds normally.

[0035] Reference Figure 8An expansion opening d is provided at the end of the column hole of the positive cover plate 8, the diameter of the pin shaft 8112 matches the expansion opening d, the diameter of the push button 819 is smaller than the expansion opening d, an expansion hole e is provided on the inner wall of the column hole of the positive cover plate 8, and an anti-slip disk 8110 is fixedly connected to the side wall of the push button 819, and the anti-slip disk 8110 is transmission connected to the inner wall of the expansion hole e through a tension spring 8111.

[0036] In order to prevent the push button 819 from pressing the pin 8112 and the push button 819 entering the pin hole of the arc-shaped protrusion 818 with the pin 8112 to limit the position of the arc-shaped protrusion 818, and the pin 8112 rebounding into the column hole again after the push button 819 is reset, and the arc-shaped protrusion 818 cannot be unlocked smoothly, a diameter difference is set between the push button 819 and the pin 8112, when the push button 819 enters the pin hole with the pin 8112, Due to the diameter difference, the arc-shaped protrusion 818 will move slightly and then be restricted by the pressing button 819. At this time, the pin hole of the arc-shaped protrusion 818 and the column hole are misaligned. When the pressing button 819 is reset, the pin shaft 8112 cannot rebound into the column hole, thereby successfully unlocking the arc-shaped protrusion 818. The setting of the pressing button 819 and the anti-slip disk 8110 can prevent the pressing button 819 from falling off and automatically reset after the pressing button 819 is pressed.

[0037] Reference Figure 2 The battery part 2 and the back of the wall frame 4 are both provided with wiring channels, and the top of the casing 1 is provided with a through groove for connecting the battery part 2 and the wiring channels on the back of the wall frame 4, and a cooling fan is provided on the back of the inverter main part 3.

[0038] By setting up the wiring channel, it is convenient to wire the battery part 2 and the inverter main part 3 from the back of the casing 1, making the installation operation more convenient and improving the aesthetics of the wiring. Moreover, a unified heat dissipation duct can be formed for the battery part 2, the inverter main part 3, and the BOS part 31 through the wiring channel, which is convenient for unified heat dissipation of electrical components and effectively reduces the use of heat dissipation equipment.

[0039] The above shows and describes the basic principles, main features and advantages of the present invention. The present invention is not limited to the above embodiments. The above embodiments and descriptions are only for explaining the principles of the present invention. The present invention may be subject to various changes and improvements without departing from the spirit and scope of the present invention. These changes and improvements fall within the scope of the present invention. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. A hybrid integrated device of an inverter, a battery pack and a control system, characterized in that: The invention comprises a casing (1), wherein a battery part (2) is installed inside the casing (1), a wall frame (4) is arranged on the top of the casing (1), an inverter main part (3) is suspended on the front of the wall frame (4), a top plate (9) is installed on the top of the casing (1) located on the top of the inverter main part (3), an opening is arranged on the back of the casing (1) and is covered by a back plate (6), the back plate (6) extends to the back of the wall frame (4) and side plates are arranged on both sides and fixedly installed on both sides of the wall frame (4), support frames (5) for bearing the weight of the inverter main part (3) are arranged on both sides of the front of the wall frame (4), and wiring operation windows are arranged on the bottom of the inverter main part (3) located on the front of the casing (1) and on both sides; The wiring operation windows on both sides of the housing (1) are covered by two side covers (7), and the wiring operation window on the front of the housing (1) is covered by a front cover (8), and the side covers (7) and the front cover (8) are provided to hide the wiring terminals; A BOS part (31) is provided at the bottom of the inverter main part (3), and the BOS part (31) is used to enhance the safety of the BOS part (31). The inverter main part (3) is used to output AC power to the battery part (2) and the national grid, and the battery part (2) is integrated with a 485 interface of the BMS and a battery pack controlled by a CAN interface; It also includes a DSP control center, which is electrically connected to the inverter main component (3) and is used for energy scheduling.

2. The hybrid integrated device of an inverter, a battery pack and a control system according to claim 1, characterized in that: It also includes an antenna, a Bluetooth, and a wifi module (10). The inverter main component (3) is provided with two photovoltaic input ports, one battery input and output port, one GRID port, one BACKUP port, and five RJ45 ports. The BOS part (31) includes: an air switch, an AC circuit breaker, a BYPASS switch, a battery circuit breaker, and a photovoltaic isolation switch. The inverter main component (3) includes: a BOOST switch circuit, a BUCK / BOOST switch circuit, an LLC switch circuit, and a HERIC topology circuit. The photovoltaic isolation switch is electrically connected to the two photovoltaic input ports, the BOOST switch circuit output end of the inverter main unit (3) is connected to the HERIC topology circuit, the HERIC topology circuit output end is electrically connected to the air switch and the AC circuit breaker, the air switch and the AC circuit breaker are electrically connected to the BYPASS switch, the BYPASS switch is electrically connected to the BACKUP port and the GRID port, the GRID port is connected to the national grid, the BOOST switch circuit output end of the inverter main unit (3) is connected to the BUCK / BOOST switch circuit and the HERIC topology circuit, the BUCK / BOOST switch circuit is connected to the LLC switch circuit, and the LLC switch circuit output end is electrically connected to the battery port of the battery circuit breaker; The five RJ45 ports are electrically connected to the DSP control center.

3. The hybrid integrated device of an inverter, a battery pack and a control system according to claim 1, characterized in that: The support frame (5) comprises a main frame body (51), a magnetic locking member (52) is arranged inside the main frame body (51), two mounting holes extending to the front and back of the front cover plate (8) are arranged inside the front cover plate (8), and magnetic adsorption members (81) are installed in the two mounting holes, a locking hole a is opened on the front of the main frame body (51), the magnetic adsorption member (81) is inserted into the locking hole a and is magnetically connected to the magnetic locking member (52), the magnetic adsorption member (81) and the magnetic locking member (52) are used to fix the front cover plate (8), and the magnetic adsorption member (81) is used to trigger the magnetic locking member (52) to lock the opposite side cover plate (7).

4. The hybrid integrated device of an inverter, a battery pack and a control system according to claim 3, characterized in that: The side cover plate (7) includes two groups of pre-fixed parts, and the two groups of pre-fixed parts have the same structure and are both composed of a right support plate (71) and a left support plate (72), and the outer side surfaces of the right support plate (71) and the left support plate (72) are respectively attached to the two sides of the inner wall of the main frame body (51); The magnetic locking parts (52) are provided with two groups, and are respectively connected with the two groups of pre-fixed parts. The magnetic locking parts (52) include a passive block (521) and an active block (522). The passive block (521) and the active block (522) are fixedly connected by a traction rope (523). The active block (522) is provided with a magnetic moving rod (524) at one end facing the lock hole a. The passive block (521) is connected to the inner wall of the main frame (51) through a tension spring 1 (526) at one end facing the transverse midline of the main frame (51). The inner side surfaces of the passive block (521) and the active block (522) are both provided with an inlay plate (525). The outer walls of the right support plate (71) and the left support plate (72) are both provided with an inlay groove adapted to the inlay plate (525).

5. The hybrid integrated device of an inverter, a battery pack and a control system according to claim 3, characterized in that: The magnetic adsorption member (81) is composed of an insertion end c and a control end b, the control end b is rotatably sleeved in the mounting hole of the front cover plate (8), one end of the control end b is provided with a special-shaped notch, the insertion end c comprises a columnar plug block (811), a side wall of the columnar plug block (811) is provided with an annular groove, a magnetic inner ring (812) is fixedly connected in the annular groove, and the side wall of the magnetic inner ring (812) is provided with two arc-shaped slope blocks (813).

6. The hybrid integrated device of an inverter, a battery pack and a control system according to claim 5, characterized in that: The control end b comprises a knob (817), a side wall of the knob (817) being fixedly connected to a wall ring (814), and the wall ring (814) being transmission-connected to the inner wall of the mounting hole of the front cover plate (8) via a torsion spring (815).

7. The hybrid integrated device of an inverter, a battery pack and a control system according to claim 6, characterized in that: A positioning slide block (816) is fixedly connected to the side wall of the wall ring (814), an arc-shaped positioning groove is provided on the inner wall of the mounting hole of the front cover plate (8), and the positioning slide block (816) is slidably sleeved in the arc-shaped positioning groove.

8. The hybrid integrated device of an inverter, a battery pack and a control system according to claim 6, characterized in that: The side wall of the knob (817) is also provided with an arc-shaped protrusion (818); the inner wall of the mounting hole of the front cover plate (8) is provided with an arc-shaped slide groove, and the arc-shaped protrusion (818) is slidably sleeved in the arc-shaped slide groove; the front surface of the front cover plate (8) is provided with a column hole connected to the arc-shaped slide groove, and a pressing button (819) is slidably sleeved in the column hole; the outer wall of the arc-shaped protrusion (818) is provided with a pin hole, and a pin shaft (8112) is connected to the pin hole through a spring (8113).

9. The hybrid integrated device of an inverter, a battery pack and a control system according to claim 8, characterized in that: An expansion opening d is provided at the end of the column hole of the front cover plate (8), the diameter of the pin shaft (8112) matches the expansion opening d, the diameter of the push button (819) is smaller than the expansion opening d, an expansion hole e is provided on the inner wall of the column hole of the front cover plate (8), an anti-slip disk (8110) is fixedly connected to the side wall of the push button (819), and the anti-slip disk (8110) is transmission-connected to the inner wall of the expansion hole e via a second tension spring (8111).

10. The hybrid integrated device of an inverter, a battery pack and a control system according to claim 1, characterized in that: The battery part (2) and the back of the wall frame (4) are both provided with wiring channels, and the top of the housing (1) is provided with a through groove for connecting the battery part (2) and the wiring channels on the back of the wall frame (4), and the back of the inverter main part (3) is provided with a cooling fan.

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