High-safety energy storage inverter with moisture-proof function

Abstract

The invention relates to the field of inverters, in particular to a high-safety energy storage inverter with a moisture-proof function, which comprises a main shell, the device further comprises a housing and the like. The main shell is connected with a housing; the main shell is fixedly connected with a plurality of sockets, and the sockets are located on the inner side of the cover shell. The lower side of the socket is provided with a conical surface; the main shell is fixedly connected with a plurality of hollow fixing rings, and the sockets are located on the inner sides of the corresponding fixing rings. The lower side of the main shell is fixedly connected with a liquid storage pipe, and the liquid storage pipe is used for conveying moisture-proof insulating liquid. The temporary storage ring is continuously extruded through the hollow ring, so that moisture-proof insulating liquid in the temporary storage ring downwards flows into the inner side of the hollow ring along the conical surface part through the outlet of the temporary storage ring, finally, the connector of the cable is completely wrapped, and after the connector is completely inserted into the socket, the contact surface of the connector is covered with a layer of uniform moisture-proof insulating liquid protection film; the protective film can effectively isolate water vapor and prevent the water vapor from intruding into a contact interface between the cable and the socket, thereby realizing reliable moisture-proof and moisture-absorbing effects.

Description

Technical Field

[0001] This invention relates to the field of inverters, and more particularly to a high-safety energy storage inverter with moisture-proof function. Background Technology

[0002] An inverter is a power electronic device that converts direct current (DC) to alternating current (AC). It is widely used in various electrical appliances and equipment. However, when using outdoor photovoltaic inverters, multiple cables need to be inserted into the ports on the bottom of the inverter. Due to the small gaps between the cables and limited operating space, operators can easily pull or touch the already installed cables when installing subsequent cables, causing them to loosen. Furthermore, in harsh outdoor environments, external moisture can easily seep into the contact surface between the cables and ports through the gaps, causing the ports to become damp and affecting normal operation. Summary of the Invention

[0003] To overcome the drawback that in harsh outdoor environments, external moisture can easily seep into the contact surface between cables and ports through the gaps, causing the ports to become damp and affecting normal use, this invention provides a highly safe energy storage inverter with moisture-proof function.

[0004] The technical implementation scheme of the present invention is as follows: a high-safety energy storage inverter with moisture-proof function, including a main housing; and a cover; the main housing is connected to the cover; the main housing is fixedly connected to a plurality of sockets, and the sockets are located inside the cover; the lower side of the socket is provided with a conical part; the main housing is fixedly connected to a plurality of hollow fixing rings, and the sockets are located inside the corresponding fixing rings; a liquid storage pipe is fixedly connected to the lower side of the main housing, and the liquid storage pipe is used to transport moisture-proof insulating liquid; the liquid storage pipe is connected to a plurality of connecting pipes, and the connecting pipes are fixedly connected to the corresponding fixing rings; each connecting pipe is connected to a two-way pressure valve; a temporary storage ring is fixedly connected to the main housing and located inside the fixing rings, the inner cavity of the temporary storage ring is connected to the corresponding connecting pipe, and the temporary storage ring is made of a deformable material; a one-way pressure valve I is installed on the side of the lower part of the temporary storage ring facing the socket, and the one-way pressure valve I only allows liquid to flow out from the temporary storage ring; a hollow ring is connected to the cable joint; a plurality of one-way pressure valves II are installed inside the hollow ring, and the one-way pressure valves II only allow liquid to flow into the hollow ring.

[0005] More preferably, it also includes telescopic rods, rectangular plates, and sleeves; the main housing is fixedly connected to several telescopic rods; all the telescopic rods are fixedly connected to a rectangular plate that contacts the housing; the rectangular plate is fixedly connected to several sleeves, and the sleeves are fixedly connected to the hollow ring, and the cable is located inside the sleeves, and the position and number of the sleeves correspond to the socket.

[0006] More preferably, the sleeves are arranged regularly on the rectangular plate.

[0007] More preferably, it also includes an exhaust pipe; the exhaust pipe is fixedly connected to the temporary storage ring, and the exhaust pipe is fixedly connected to the fixed ring; the exhaust pipe is connected to a telescopic pipe; the telescopic pipe is connected to a one-way valve, and the one-way valve is fixedly connected to the temporary storage ring.

[0008] More preferably, it also includes a fixing block; each sleeve has a circular hole; each sleeve is fixedly connected to a fixing block; each fixing block is fixedly connected to a spring rod; each spring rod has a ball located in the circular hole at its telescopic end; and each ball is fixedly connected to a lever.

[0009] More preferably, the cover has several heat dissipation holes, and each heat dissipation hole is equipped with an activated carbon plate.

[0010] More preferably, the retaining ring has a beveled portion.

[0011] More preferably, silicone oil is used as the moisture-proof insulating liquid.

[0012] More preferably, it also includes fastening rods; the cover is composed of two half-covers, and the half-covers are rotatably connected to the main housing; one half-cover is connected to two fastening rods; the other half-cover is fixed to two fastening rings, and the fastening rods can be screwed into the corresponding fastening rings.

[0013] More preferably, it also includes rubber blocks and rubber plates; each half-cover is fixedly connected to several rubber blocks, and the rubber blocks are located at the contact surface of the two half-covers; each half-cover is fixedly connected to a rubber plate.

[0014] Compared with the prior art, the present invention has the following advantages: The present invention continuously squeezes the storage ring with a hollow ring, so that the moisture-proof insulating liquid in the storage ring flows down along the conical surface of the outlet into the inner side of the hollow ring, and finally completely wraps the cable joint. After the joint is fully inserted into the socket, its contact surface with the socket will be covered with a uniform moisture-proof insulating liquid protective film. This protective film can effectively isolate moisture and prevent it from penetrating the contact interface between the cable and the socket, thereby achieving a reliable moisture-proof and moisture-absorbing effect.

[0015] This invention brings significant convenience to maintenance work by arranging the sleeves in a regular rectangular array on a rectangular plate. On the one hand, it greatly facilitates the identification and locating of cables by maintenance personnel, enabling them to quickly locate the faulty cable on the main housing. On the other hand, the regular arrangement maintains a large gap between the cables, which not only provides more space for operation (such as inspection or installation tools), but also simplifies the process of operators installing the cables onto the main housing.

[0016] When the invention is working normally, the two half-covers are tightened by screwing the fastening rod into the corresponding fastening ring, so that the rubber blocks on the contact surface of the half-covers are tightly pressed together. When the two half-covers are closed down and in contact with the rectangular plate, the rubber plate at the bottom of the half-covers will fit tightly with the edge of the rectangular plate, effectively isolating external moisture and significantly improving the overall moisture-proof effect of the cover. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the high-safety energy storage inverter with moisture-proof function disclosed in this invention. Figure 2 This is a schematic diagram of the internal structure of the casing disclosed in this invention; Figure 3 This is a schematic diagram of the combined structure of the main housing, telescopic rod, and rectangular plate disclosed in this invention; Figure 4 This is an exploded view of the combination of the housing, cable, socket, rectangular plate, and liquid storage tube disclosed in this invention; Figure 5 This is a schematic diagram of the combined structure of the socket, rectangular plate, sleeve, retaining ring and top ball disclosed in this invention; Figure 6 This is a cross-sectional view of the combination of the fixed ring and the hollow ring disclosed in this invention; Figure 7 for Figure 6 Enlarged view of point A in the middle; Figure 8 This is a diagram showing the state of the cover being flipped open according to the present invention.

[0018] The above-mentioned drawings include the following reference numerals: 1-Main housing, 2-Cover, 3-Cable, 4-Socket, 101-Telescopic rod, 102-Rectangular plate, 103-Sleeve, 104-Fixing ring, 105-Reservoir pipe, 106-Connecting pipe, 107-Two-way pressure valve, 108-Temporary storage ring, 109-One-way pressure valve I, 1010-Hollow ring, 1011-One-way pressure valve II, 1012-Exhaust pipe, 1013-Telescopic pipe, 1014-One-way valve, 1015-Fixing block, 1016-Spring rod, 1017-Top ball, 1018-Pulley, 201-Fastening rod, 202-Fastening ring, 20-Heat dissipation hole, 21-Activated carbon plate, 22-Rubber block, 23-Rubber plate, 1031-Round hole, 1041-Beveled part, 41-Conical part, 31-Connector. Detailed Implementation

[0019] First, it should be noted that in different described embodiments, the same components are given the same reference numerals or the same component names. The disclosure contained throughout this specification can be applied semantically to the same components having the same reference numerals or the same component names. The location descriptions selected in the specification, such as upper, lower, lateral, etc., also refer to the directly described and illustrated figures and are semantically applied to the new location when the location changes.

[0020] Example 1: A high-safety energy storage inverter with moisture-proof function, such as... Figures 1-8 As shown, it includes a main housing 1; It also includes a housing 2, sockets 4, fixing rings 104, liquid storage pipes 105, connecting pipes 106, a two-way pressure valve 107, a temporary storage ring 108, a one-way pressure valve I 109, a hollow ring 1010, and a one-way pressure valve II 1011; the housing 2 is connected to the lower side of the main housing 1; several sockets 4 are fixed to the main housing 1, and the sockets 4 are located inside the housing 2; a conical section 41 is provided on the lower side of the sockets 4; several fixing rings 104 are fixed to the lower side of the main housing 1, and the fixing rings 104 are hollow, and the sockets 4 are located inside the corresponding fixing rings 104; a liquid storage pipe 105 is fixed to the lower side of the main housing 1, and the liquid storage pipe 105 is used to transport moisture-proof insulating liquid; the liquid storage pipe 105 is connected to several connecting pipes 106, and connected to... The connecting pipe 106 is fixedly connected to the corresponding fixing ring 104; each connecting pipe 106 is connected to a two-way pressure valve 107; a temporary storage ring 108 is fixedly connected to the lower side of the main housing 1, and the temporary storage ring 108 is located inside the fixing ring 104. The inner cavity of the temporary storage ring 108 is connected to the corresponding connecting pipe 106, and the temporary storage ring 108 is made of rubber; a one-way pressure valve I 109 is installed on the side of the lower part of the temporary storage ring 108 facing the socket 4, and the one-way pressure valve I 109 only allows liquid to flow out from the temporary storage ring 108; the connector 31 of the cable 3 is connected to a hollow ring 1010; two one-way pressure valves II 1011 are installed inside the hollow ring 1010, and the one-way pressure valves II 1011 only allow liquid to flow into the hollow ring 1010.

[0021] It also includes telescopic rods 101, rectangular plates 102 and sleeves 103; the main housing 1 is fixedly connected to two telescopic rods 101; all the telescopic rods 101 are fixedly connected to a rectangular plate 102, and the rectangular plate 102 is in contact with the housing 2; the rectangular plate 102 is fixedly connected to several sleeves 103, and the sleeves 103 are fixedly connected to the hollow ring 1010, and the cable 3 is located inside the sleeves 103, and the position and number of the sleeves 103 correspond to the socket 4.

[0022] The sleeves 103 are arranged in a regular rectangular pattern on the rectangular plate 102.

[0023] It also includes an exhaust pipe 1012, a telescopic pipe 1013, and a one-way valve 1014; the exhaust pipe 1012 is fixedly connected to the temporary storage ring 108, and the exhaust pipe 1012 is fixedly connected to the fixed ring 104; the exhaust pipe 1012 is connected to the telescopic pipe 1013; the telescopic pipe 1013 is connected to the one-way valve 1014, and the one-way valve 1014 is fixedly connected to the lower side of the temporary storage ring 108.

[0024] It also includes a fixing block 1015, a spring rod 1016, a top ball 1017, and a lever 1018; each sleeve 103 has a circular hole 1031; each sleeve 103 is fixedly connected to a fixing block 1015; each fixing block 1015 is fixedly connected to a spring rod 1016; each spring rod 1016 has a top ball 1017 fixedly connected to its telescopic end, and the top ball 1017 is located inside the circular hole 1031, and the connector 31 has a fixing hole corresponding to the top ball 1017; each top ball 1017 is fixedly connected to a lever 1018.

[0025] The cover 2 has several heat dissipation holes 20, and each heat dissipation hole 20 is provided with a honeycomb-shaped activated carbon plate 21.

[0026] The lower side of the fixing ring 104 has an inclined part 1041.

[0027] Silicone oil is selected as the moisture-proof insulating liquid.

[0028] During the installation and use of the energy storage inverter, a storage box containing moisture-proof insulating liquid needs to be installed next to it. The storage box is connected to the storage pipe 105 through a pump and a transmission pipe. In the initial stage, the moisture-proof insulating liquid in the storage box is pressurized and delivered to the storage pipe 105 by the pump, so that the internal pressure of the storage pipe 105 is higher than the pressure in the temporary storage ring 108. At this time, the two-way pressure valve 107 opens towards the temporary storage ring 108, and the moisture-proof insulating liquid in the storage pipe 105 flows into the temporary storage ring 108 through the two-way pressure valve 107.

[0029] In use, the operator inserts the cables 3 one by one into the corresponding sleeves 103 until the connector 31 is flush with the hollow ring 1010. During this process, the connector 31 pushes the top ball 1017 outward, compressing the spring rod 1016. Then, the top ball 1017, under the elastic force of the spring rod 1016, gets into the fixing hole of the connector 31, thus fixing the cables 3 as shown in the figure. After all the cables 3 are fixed in the corresponding sleeves 103, the operator pushes the rectangular plate 102, sleeves 103, hollow ring 1010 and cables 3 upward as a whole. 10 is gradually inserted into the inner side of the fixing ring 104, and at the same time, the connector 31 is gradually inserted into the corresponding socket 4 as shown in the figure. When the hollow ring 1010 contacts the lower side of the temporary storage ring 108 and continues to move upward, it will squeeze the rubber temporary storage ring 108, causing it to deform. This will cause the pressure of the moisture-proof insulating liquid inside the temporary storage ring 108 to rise. When the pressure reaches the opening threshold of the one-way pressure valve I 109, the one-way pressure valve I 109 opens, and the moisture-proof insulating liquid flows down along the conical surface 41 through its outlet into the inner side of the hollow ring 1010, eventually completely wrapping the connector 31 of the cable 3.

[0030] As the hollow ring 1010 and cable 3 continue to move upward, the hollow ring 1010 continuously squeezes the temporary storage ring 108, causing it to deform upward and drive the one-way pressure valve I 109 to rise together. When the one-way pressure valve I 109 moves upward beyond the conical section 41, its valve body forms a tight contact with the outer wall of the socket 4, thereby sealing the passage for the moisture-proof insulating liquid in the temporary storage ring 108 to flow out through the one-way pressure valve I 109. Subsequently, the liquid pressure in the temporary storage ring 108 increases due to continuous pressure. When this pressure exceeds the pressure in the liquid storage tube 105, the two-way pressure valve 107 is pushed to one side of the liquid storage tube 105 and opens. At this time, the moisture-proof insulating liquid in the temporary storage ring 108 flows through the two-way pressure valve I 109. 7. The liquid flows back to the storage tube 105 for storage. At the same time, the continuous insertion of the cable 3 will squeeze the moisture-proof insulating liquid inside the hollow ring 1010, causing its internal pressure to rise. When the pressure reaches the opening threshold of the one-way pressure valve II 1011, the one-way pressure valve II 1011 opens, and the liquid inside the hollow ring 1010 flows into the hollow ring 1010 for collection through the one-way pressure valve II 1011. Finally, after the connector 31 is fully inserted into the socket 4, its contact surface with the socket 4 will be covered with a uniform moisture-proof insulating liquid protective film. This protective film can effectively isolate moisture and prevent it from penetrating the contact interface between the cable 3 and the socket 4, thereby achieving a reliable moisture-proof and moisture-absorbing effect.

[0031] When maintenance personnel need to disassemble a specific cable 3 for inspection, they first move the corresponding lever 1018 outward. The lever 1018 then moves the top ball 1017 outward, compressing the spring rod 1016 and causing the top ball 1017 to exit from the fixing hole of the connector 31, thereby releasing the lock on the cable 3. At this point, the maintenance personnel can directly pull the cable 3 downward to separate it from the corresponding socket 4, completing the disassembly. The whole process is simple, convenient, and quick.

[0032] Here is an explanation: By opening heat dissipation holes 20 on the housing 2 and installing activated carbon plates 21 in each heat dissipation hole 20, heat can be dissipated at the contact end between the cable 3 and the socket 4. At the same time, the activated carbon plates 21 can effectively adsorb moisture in the environment, thereby ensuring that moisture cannot enter the interior of the housing 2 through the heat dissipation holes 20. Subsequently, maintenance personnel only need to replace the activated carbon plates 21 periodically to maintain this protective effect.

[0033] Considering that when installing cables 3 upwards to sockets 4, existing technology usually requires bundling multiple cables 3 with corrugated tubing and then installing them one by one, during this process, the installation of subsequent cables 3 will generate additional tension on the already installed cables 3, causing them to loosen after being connected to sockets 4, this solution is changed to: the operator first pre-fixes all cables 3 to their respective sleeves 103, and then pushes the rectangular plate 102 as a whole, so that all cables 3 are simultaneously inserted upwards into the corresponding sockets 4. During this process, the telescopic rod 101 will adapt by extending and retracting to ensure the smoothness of the overall operation.

[0034] Since the sleeves 103 are arranged in a regular rectangular array on the rectangular plate 102, this structure brings significant convenience to maintenance work. On the one hand, it greatly facilitates the identification and search of cables by maintenance personnel, and can quickly locate the faulty cable 3 on the main housing 1. On the other hand, the regular arrangement maintains a large gap between each cable 3, which not only provides more space for operation (such as inspection or installation tools), but also simplifies the process of operators installing the cable 3 onto the main housing 1.

[0035] When the hollow ring 1010 moves upward and contacts the inner wall of the fixed ring 104, the two together form a relatively closed annular cavity. As the hollow ring 1010 continues to move upward, it will compress the air in the cavity, causing it to pass through the one-way valve 1014, through the telescopic tube 1013, and finally out of the exhaust pipe 1012. This process effectively removes the air at the connection between the cable 3 and the socket 4, thereby avoiding oxidation problems at the connection due to the presence of air.

[0036] The beveled portion 1041 on the lower side of the fixing ring 104 serves as a guide as the hollow ring 1010 moves upward and fits into the inner side of the fixing ring 104, thus guiding the hollow ring 1010 to fit smoothly. Furthermore, considering that a large insertion friction force will be generated when the rectangular plate 102 drives all the cables 3 to be inserted into the corresponding sockets 4 simultaneously, this solution uses silicone oil with lubricating properties as a moisture-proof insulating liquid. During the insertion of the cables 3 into the sockets 4, the silicone oil lubricates the joints 31 of the cables 3, effectively reducing the frictional resistance between them, thereby significantly reducing the installation difficulty of the cables 3.

[0037] Example 2, based on Example 1, such as Figure 3 , Figure 4 and Figure 8 As shown, it also includes fastening rods 201 and fastening rings 202; the cover 2 is composed of two half-covers, and the half-covers are rotatably connected to the main housing 1; one half-cover is connected to two fastening rods 201; the other half-cover is fixed to two fastening rings 202, and the fastening rods 201 can be screwed into the corresponding fastening rings 202.

[0038] It also includes rubber blocks 22 and rubber plates 23; each half cover has two rubber blocks 22 fixedly attached, and the rubber blocks 22 are located at the contact surface of the two half covers; each half cover has a rubber plate 23 fixedly attached to its inner side.

[0039] When maintenance personnel need to inspect the contact point between cable 3 and socket 4, they can first unscrew the fastening rod 201 to disengage it from the fastening ring 202, and then flip the two half-covers upwards, as shown. Figure 8 As shown, this operation greatly expands the maintenance space, making it easier to carry out repairs.

[0040] In non-maintenance mode, the fastening rod 201 is screwed into the corresponding fastening ring 202 to fasten the two half-covers. At this time, the rubber block 22 on the contact surface of the half-covers is tightly pressed together. When the two half-covers are closed downwards and in contact with the rectangular plate 102, the rubber plate 23 at the bottom of the half-covers will fit tightly with the edge of the rectangular plate 102 to ensure the sealing effect, effectively isolate external moisture, and significantly improve the overall moisture-proof effect of the cover 2.

[0041] Although this disclosure has been described with respect to only a limited number of embodiments, those skilled in the art who benefit from this disclosure will understand that various other embodiments can be devised without departing from the scope of the invention. Therefore, the scope of the invention should be limited only by the appended claims.

Claims

1. A high-safety energy storage inverter with moisture-proof function, comprising a main casing (1); characterized in that: It also includes a cover (2); the main housing (1) is connected to the cover (2); the main housing (1) is fixedly connected to several sockets (4), and the sockets (4) are located inside the cover (2); the lower side of the sockets (4) is provided with a conical surface (41); the main housing (1) is fixedly connected to several hollow fixing rings (104), and the sockets (4) are located inside the corresponding fixing rings (104); the lower side of the main housing (1) is fixedly connected to a liquid storage pipe (105), and the liquid storage pipe (105) is used to transport moisture-proof insulating liquid; the liquid storage pipe (105) is connected to several connecting pipes (106), and the connecting pipes (106) are fixedly connected to the corresponding fixing rings (104); each connecting pipe (106) is connected to a two-way pressure valve. (107); The main housing (1) is fixedly connected to a temporary storage ring (108) located inside the fixed ring (104). The inner cavity of the temporary storage ring (108) is connected to the corresponding connecting pipe (106), and the temporary storage ring (108) is made of deformable material. A one-way pressure valve I (109) is installed on the side of the lower part of the temporary storage ring (108) facing the socket (4), and the one-way pressure valve I (109) only allows liquid to flow out from the temporary storage ring (108). The connector (31) of the cable (3) is connected to a hollow ring (1010). Several one-way pressure valves II (1011) are installed inside the hollow ring (1010), and the one-way pressure valves II (1011) only allow liquid to flow into the hollow ring (1010).

2. A high-safety energy storage inverter with moisture-proof function according to claim 1, characterized in that, It also includes telescopic rods (101), rectangular plates (102) and sleeves (103); the main housing (1) is fixedly connected to several telescopic rods (101); all the telescopic rods (101) are fixedly connected to a rectangular plate (102) that contacts the cover (2); the rectangular plate (102) is fixedly connected to several sleeves (103), and the sleeves (103) are fixedly connected to the hollow ring (1010), and the cable (3) is located inside the sleeves (103), and the position and number of the sleeves (103) correspond to the socket (4).

3. A high-safety energy storage inverter with moisture-proof function according to claim 2, characterized in that, The sleeves (103) are arranged regularly on the rectangular plate (102).

4. A high-safety energy storage inverter with moisture-proof function according to claim 1, characterized in that, It also includes an exhaust pipe (1012); a temporary storage ring (108) is fixedly connected to the exhaust pipe (1012), and the exhaust pipe (1012) is fixedly connected to the fixed ring (104); the exhaust pipe (1012) is connected to a telescopic pipe (1013); the telescopic pipe (1013) is connected to a one-way valve (1014), and the one-way valve (1014) is fixedly connected to the temporary storage ring (108).

5. A high-safety energy storage inverter with moisture-proof function according to claim 2, characterized in that, It also includes a fixing block (1015); each sleeve (103) has a circular hole (1031); each sleeve (103) is fixedly connected to a fixing block (1015); each fixing block (1015) is fixedly connected to a spring rod (1016); each spring rod (1016) has a ball (1017) fixedly connected to its telescopic end in the circular hole (1031); each ball (1017) is fixedly connected to a lever (1018).

6. A high-safety energy storage inverter with moisture-proof function according to claim 1, characterized in that, The cover (2) has several heat dissipation holes (20), and each heat dissipation hole (20) is provided with an activated carbon plate (21).

7. A high-safety energy storage inverter with moisture-proof function according to claim 1, characterized in that, The fixing ring (104) has a beveled part (1041).

8. A high-safety energy storage inverter with moisture-proof function according to claim 1, characterized in that, Silicone oil is selected as the moisture-proof insulating liquid.

9. A high-safety energy storage inverter with moisture-proof function according to claim 1, characterized in that, It also includes fastening rods (201); the cover (2) consists of two half-covers, and the half-covers are rotatably connected to the main housing (1); one half-cover is connected to two fastening rods (201); the other half-cover is fixed to two fastening rings (202), and the fastening rods (201) can be screwed into the corresponding fastening rings (202).

10. A high-safety energy storage inverter with moisture-proof function according to claim 9, characterized in that, It also includes rubber blocks (22) and rubber plates (23); each half cover is fixed with several rubber blocks (22), and the rubber blocks (22) are located on the contact surface of the two half covers; each half cover is fixed with a rubber plate (23).

Images