CN219351040U - High-voltage direct-current combiner box for energy storage system - Google Patents
High-voltage direct-current combiner box for energy storage system Download PDFInfo
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- CN219351040U CN219351040U CN202320272005.4U CN202320272005U CN219351040U CN 219351040 U CN219351040 U CN 219351040U CN 202320272005 U CN202320272005 U CN 202320272005U CN 219351040 U CN219351040 U CN 219351040U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/50—Photovoltaic [PV] energy
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Abstract
The utility model relates to the technical field of junction boxes, in particular to a high-voltage direct-current junction box for an energy storage system, which comprises a box body, a direct-current circuit breaker, a junction switching copper bar group, a junction copper bar group, an input terminal group, an output copper bar group, a switch state control converter and a switch state control conversion terminal. The positive electrode wire and the negative electrode wire of each cluster of batteries can be directly connected to the positive electrode input terminal and the negative electrode input terminal respectively, because the multiple pairs of positive electrode input terminals and the negative electrode input terminals penetrate through the box body simultaneously and are electrically connected to the positive electrode bus copper bar and the negative electrode bus copper bar respectively, the positive electrode bus copper bar and the negative electrode bus copper bar are electrically connected to the positive electrode bus switching copper bar and the negative electrode bus switching copper bar respectively, and the positive electrode bus switching copper bar and the negative electrode bus switching copper bar are electrically connected to the first positive electrode input end and the first negative electrode input end of the direct current breaker respectively, so that the positive electrode wire and the negative electrode wire of the multiple clusters of batteries are conveniently connected. The switch state control conversion terminal can monitor and control the switch state of the bus box, so that safety is improved.
Description
Technical Field
The utility model relates to the technical field of junction boxes, in particular to a high-voltage direct-current junction box for an energy storage system.
Background
The combiner box is characterized in that a user can connect a certain number of lithium batteries with the same specification in series to form single-cluster batteries, the voltage of the single-cluster batteries is within 1500V, then a plurality of lithium batteries are connected in parallel to the combiner box, and after the lithium batteries are combined in the combiner box, the direct-current power distribution cabinet and the alternating-current power distribution cabinet are matched to form a complete energy storage system, so that grid connection with the mains supply is realized. However, the bolting of the cable terminals to the buss copper bars per cluster of cell positive and negative lines is inconvenient.
Disclosure of Invention
Aiming at the defects of the prior art, the utility model provides a high-voltage direct-current bus box for an energy storage system, which aims to solve the problem of inconvenient operation of connecting a cable terminal to a bus copper bar by bolts for positive and negative lines of each cluster of batteries.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
a high voltage direct current combiner box for an energy storage system, comprising:
a case;
the direct-current circuit breaker is fixed in the box body;
the bus transfer copper bar group comprises an anode bus transfer copper bar and a cathode bus transfer copper bar, and the anode bus transfer copper bar and the cathode bus transfer copper bar are respectively and electrically connected with a first anode input end and a first cathode input end of the direct current breaker;
the busbar copper bar group is fixedly connected with the box body through an insulating column and comprises an anode busbar copper bar and a cathode busbar copper bar which are respectively connected with the anode busbar switching copper bar and the cathode busbar switching copper bar;
the input terminal group comprises a plurality of positive input terminals and a plurality of negative input terminals, the positive input terminals are electrically connected with the positive bus copper bars through the box body, and the negative input terminals are electrically connected with the negative bus copper bars through the box body;
the output copper bar group comprises an anode output copper bar and a cathode output copper bar, the anode output copper bar is electrically connected with a first anode output end of the direct current circuit breaker, and the cathode output copper bar is electrically connected with a first cathode output end of the direct current circuit breaker;
the switch state control converter is fixed inside the box body and is connected with the direct current breaker through signals;
the switch state control conversion terminal penetrates through and is fixed to the box body, and the switch state control conversion terminal is electrically connected with the switch state control converter.
As a preferable scheme, the box body comprises a first shell, a second shell, a third shell and an insulating plate, wherein the first shell comprises a bottom, a first side part and a second side part, and the first side part and the second side part are fixed at the bottom; the second shell comprises a back and a top, the back is fixedly connected with the bottom, the back is fixedly connected with the first side part and the second side part, and the top is fixedly connected with the first side part and the second side part; the third shell is fixedly connected with the first side part and the second side part, and is also fixedly connected with the top part; the insulating board sets up the below of third casing, the insulating board with first lateral part and second lateral part fixed connection, just the insulating board is provided with the through-hole, anodal output copper bar with the negative pole output copper bar passes the through-hole.
Preferably, the first side portion and the second side portion are provided with a plurality of through holes, and the positive input terminal and the negative input terminal pass through the through holes and are respectively fixed on the first side portion and the second side portion.
As a preferred scheme, the first side portion is provided with first kink, the second side portion is provided with the second kink, first kink with the second kink is provided with a plurality of perforation, anodal input terminal passes first kink the perforation, negative pole input terminal passes the second kink the perforation, first kink with the one end fixed connection of insulation board, the second kink with the other end fixed connection of insulation board.
Preferably, a fixing plate is arranged on the back of the direct current breaker, the fixing plate is fixedly connected with the direct current breaker through bolts, and the fixing plate is fixedly connected with the first side part and the second side part through bolts.
Preferably, the first side portion and the second side portion are provided with a plurality of heat dissipation holes.
The switch series copper bar group comprises a first switch series copper bar and a second switch series copper bar, the first switch series copper bar is electrically connected to a second positive electrode input end and a second negative electrode input end of the direct current circuit breaker, and the second switch series copper bar is electrically connected to a second positive electrode output end and a second negative electrode output end of the direct current circuit breaker.
Preferably, the number of the positive input terminals is 6, and the number of the negative input terminals is 6.
As a preferred scheme, the positive electrode input terminal and the negative electrode input terminal comprise an external terminal part, a wall penetrating terminal part and a flow guiding part, wherein the external terminal part is in threaded connection with the wall penetrating terminal part, the wall penetrating terminal part penetrates through the box body and is fixed to the box body through bolts, the flow guiding part is fixedly connected with the wall penetrating terminal part, and the flow guiding part is fixedly connected with the busbar copper set.
As a preferable scheme, the external terminal part comprises a sleeve part and a locking part, the locking part is provided with a nesting part, a button part and an external thread part, the external thread part is connected with the internal thread of the sleeve part in a matching way, and the nesting part is nested in the through-wall terminal part; the through-wall terminal part comprises a drainage column and an insulating mounting seat, wherein a through hole is formed in the insulating mounting seat, the drainage column penetrates through the through hole, an annular clamping part is arranged on the drainage column, the annular clamping part is clamped with the buckle of the button part, and the drainage column is fixedly connected with the drainage part.
The high-voltage direct-current combiner box for the energy storage system has the beneficial effects that:
the positive electrode wires and the negative electrode wires of each cluster of batteries can be directly connected to the positive electrode input terminal and the negative electrode input terminal respectively, because the multiple pairs of positive electrode input terminals and the negative electrode input terminals penetrate through the box body simultaneously and are respectively and electrically connected to the positive electrode bus copper bar and the negative electrode bus copper bar to finish bus, the positive electrode bus copper bar and the negative electrode bus copper bar are respectively and electrically connected to the positive electrode bus switching copper bar and the negative electrode bus switching copper bar, and the positive electrode bus switching copper bar and the negative electrode bus switching copper bar are respectively and electrically connected to the first positive electrode input end and the first negative electrode input end of the direct current breaker. Therefore, the cable terminals are connected to the bus copper bars without bolts for the positive and negative lines of each cluster of batteries, and the electric connection between the positive and negative lines of the batteries and the direct current circuit breaker is facilitated. In addition, the switch state control converter can monitor the switch state of the junction box, the switch state of the junction box can be controlled through the switch state control conversion terminal, and the efficiency and the safety of the installation of the high-voltage direct-current junction box for the energy storage system are improved.
Drawings
Fig. 1 is a schematic diagram of the overall structure of a hvth combiner box for an energy storage system according to an embodiment of the utility model.
Fig. 2 is a second schematic diagram of the overall structure of the hvth combiner box for an energy storage system according to an embodiment of the utility model.
Fig. 3 is a schematic diagram of a portion of a dc bus box for an energy storage system according to an embodiment of the present utility model.
Fig. 4 is a second schematic diagram of a portion of a dc bus box for an energy storage system according to an embodiment of the present utility model.
Fig. 5 is a third schematic view of a portion of a dc bus box for an energy storage system according to an embodiment of the present utility model.
Fig. 6 is a schematic diagram of a portion of a dc bus box for an energy storage system according to an embodiment of the present utility model.
Fig. 7 is a schematic diagram of the overall structure of the positive or negative input terminal according to an embodiment of the present utility model.
Fig. 8 is a schematic diagram showing a structure of a positive electrode input terminal or a negative electrode input terminal according to an embodiment of the present utility model in a disassembled state.
Reference numerals illustrate:
11. a first housing; 111. a bottom; 112. a first side portion; 113. a second side portion; 114. a first bending part; 115. a second bending part; 116. a heat radiation hole; 12. a second housing; 121. a back; 122. a top; 13. a third housing; 14. an insulating plate;
2. a direct current breaker; 21. a first positive input terminal; 22. a first negative input; 23. a first positive electrode output terminal; 24. a first negative output; 25. a second positive input terminal; 26. a second negative input terminal; 27. a second positive electrode output terminal; 28. a second negative output terminal; 29. a fixing plate;
31. the positive electrode is converged and connected with the copper bar; 32. the negative electrode is converged and connected with the copper bar;
41. a positive electrode busbar; 42. a negative electrode bus copper bar; 43. an insulating column;
51. a positive electrode input terminal; 52. a negative input terminal; 53. an external terminal portion; 531. a sleeve portion; 532. a locking part; 533. a nesting part; 534. a button part; 535. an external thread portion; 54. a wall penetrating terminal portion; 541. a drainage column; 542. an insulating mounting base; 543. an annular clamping part; 55. a flow guiding part; 56. a bolt;
61. the anode outputs copper bars; 62. a negative electrode outputs copper bars;
7. a switch state control converter;
8. a switch state control switching terminal;
91. the first switch is connected in series with the copper bar; 92. the second switch is connected in series with the copper bar.
Detailed Description
The utility model will be further described with reference to the drawings and the specific embodiments.
Referring to fig. 1 to 8, an embodiment of the present utility model provides a high voltage dc combiner box for an energy storage system, which includes a box body, a dc breaker 2, a combiner copper bar set, an input terminal set, an output copper bar set, a switch state control converter 7, and a switch state control conversion terminal 8.
The direct current breaker 2 is fixed inside the box body; the bus transfer copper bar group comprises an anode bus transfer copper bar 31 and a cathode bus transfer copper bar 32, and the anode bus transfer copper bar 31 and the cathode bus transfer copper bar 32 are respectively and electrically connected with a first anode input end 21 and a first cathode input end 22 of the direct current breaker 2; the busbar set is fixedly connected with the box body through an insulating column 43, and comprises an anode busbar copper bar 41 and a cathode busbar copper bar 42, wherein the anode busbar copper bar 41 and the cathode busbar copper bar 42 are respectively connected with the anode busbar switching copper bar 31 and the cathode busbar switching copper bar 32; the input terminal group includes a plurality of positive input terminals 51 and a plurality of negative input terminals 52, the positive input terminals 51 pass through the box body to be electrically connected with the positive bus bar copper bar 41, and the negative input terminals 52 pass through the box body to be electrically connected with the negative bus bar copper bar 42; the output copper bar group comprises a positive electrode output copper bar 61 and a negative electrode output copper bar 62, wherein the positive electrode output copper bar 61 is electrically connected with the first positive electrode output end 23 of the direct current breaker 2, and the negative electrode output copper bar 62 is electrically connected with the first negative electrode output end 24 of the direct current breaker 2; the switch state control converter 7 is fixed in the box body, and the switch state control converter 7 is in signal connection with the direct current breaker 2; the switch state control conversion terminal 8 passes through and is fixed to the case, and the switch state control conversion terminal 8 is electrically connected to the switch state control converter 7.
The positive and negative electrode wires of each cluster of cells can be directly connected to the positive and negative input terminals 51 and 52, respectively, because the pairs of positive and negative input terminals 51 and 52 pass through the box body to be electrically connected to the positive and negative bus copper bars 41 and 42 to complete bus, the positive and negative bus copper bars 41 and 42 are electrically connected to the positive and negative bus transfer copper bars 31 and 32, respectively, and the positive and negative bus transfer copper bars 31 and 32 are electrically connected to the first positive and negative input terminals 21 and 22 of the dc breaker 2, respectively. Therefore, the cable terminals are connected to the bus copper bars without bolts 56 for the positive and negative lines of each cluster of batteries, and the positive and negative lines of the multi-cluster batteries are conveniently electrically connected with the direct current breaker 2. In addition, the switch state control converter 7 can monitor the switch state of the combiner box, the switch state of the combiner box can be controlled through the switch state control conversion terminal 8, and the efficiency and the safety of the installation of the high-voltage direct-current combiner box for the energy storage system are improved.
Specifically, the case includes a first case 11, a second case 12, a third case 13, and an insulating plate 14, the first case 11 includes a bottom 111, a first side 112, and a second side 113, the first side 112 and the second side 113 being fixed to the bottom 111; the second casing 12 includes a back 121 and a top 122, the back 121 is fixedly connected with the bottom 111, the back 121 is fixedly connected with the first side 112 and the second side 113, and the top 122 is fixedly connected with the first side 112 and the second side 113; the third shell 13 is fixedly connected with the first side part 112 and the second side part 113, and the third shell 13 is also fixedly connected with the top 122; the insulating plate 14 is disposed below the third housing 13, the insulating plate 14 is fixedly connected to the first side portion 112 and the second side portion 113, and the insulating plate 14 is provided with a through hole through which the positive output copper bar 61 and the negative output copper bar 62 pass.
By passing the positive electrode output copper bar 61 and the negative electrode output copper bar 62 through the through holes provided in the insulating plate 14, the safety of the output copper bar group can be increased.
Specifically, the first and second side portions 112 and 113 are provided with a plurality of through holes, through which the positive and negative input terminals 51 and 52 pass, and are fixed to the first and second side portions 112 and 113, respectively.
By providing a plurality of through holes in the first side portion 112 and the second side portion 113, the positive electrode input terminal 51 and the negative electrode input terminal 52 are made to pass through the through holes, so that the positive electrode input terminal 51 and the negative electrode input terminal 52 can communicate with the inside and outside of the case, and serve as a bridge for electrical connection between the battery and the dc breaker 2. The positive and negative lines of the battery are conveniently connected with the positive and negative input terminals 51 and 52, and the cable terminals are connected to the bus bar by bolts for the positive and negative lines of the battery.
Specifically, the first side portion 112 is provided with a first bending portion 114, the second side portion 113 is provided with a second bending portion 115, the first bending portion 114 and the second bending portion 115 are provided with a plurality of through holes, the positive input terminal 51 passes through the through holes of the first bending portion 114, the negative input terminal 52 passes through the through holes of the second bending portion 115, the first bending portion 114 is fixedly connected with one end of the insulating plate 14, and the second bending portion 115 is fixedly connected with the other end of the insulating plate 14.
The first side part 112 is subjected to metal plate, so that a first bending part 114 can be obtained, an included angle between the first bending part 114 and the first side part 112 is 90 degrees, and the first bending part 114 is positioned on the front surface of the box body; the second bending part 115 can be obtained by carrying out sheet metal on the second side part 113, the included angle between the second bending part 115 and the second side part 113 is 90 degrees, and the second bending part 115 is positioned on the front surface of the box body; the third casing 13 is fixed at the first bending part 114 and the second bending part 115 through the bolts 56, the insulating plate 14 is fixed at the first bending part 114 and the second bending part 115 through the bolts 56, and the first bending part 114, the second bending part 115, the third casing 13 and the insulating plate 14 form the front face of the box body together.
Specifically, the back of the dc breaker 2 is provided with a fixing plate 29, the fixing plate 29 is fixedly connected to the dc breaker 2 by bolts 56, and the fixing plate 29 is fixedly connected to the first side portion 112 and the second side portion 113 by bolts 56.
By providing the fixing plate 29 on the back surface of the dc breaker 2, the dc breaker 2 is fixed inside the case by the fixing plate 29, the fixing plate 29 is provided with a screw hole, and the bolt 56 can pass through the screw hole to be matched with the nut, so that both ends of the fixing plate 29 are respectively fixed on the first side portion 112 and the second side portion 113, and the position of the dc breaker 2 is stabilized.
Specifically, the first and second side portions 112 and 113 are provided with a plurality of heat dissipation holes 116.
Through setting up a plurality of louvres 116 at first side 112 and second side 113, the heat can be given off to the external world from louvres 116 to can accelerate the heat dissipation of converging switching copper bar group and converging copper bar group, increase the life of equipment.
Specifically, the switch series copper bar set further includes a first switch series copper bar 91 and a second switch series copper bar 92, the first switch series copper bar is electrically connected to the second positive input end 25 and the second negative input end 26 of the dc breaker 2, and the second switch series copper bar 92 is electrically connected to the second positive output end 27 and the second negative output end 28 of the dc breaker 2.
The arrangement of the switch series copper bar group can support the input voltage class, and the highest input voltage is 1500V.
Specifically, the number of positive input terminals 51 is 6, and the number of negative input terminals 52 is 6.
By setting the number of positive electrode input terminals 51 and negative electrode input terminals 52 to 6, the energy storage system high-voltage direct current junction box can connect 6 clusters of batteries at most.
Referring to fig. 7, the positive electrode input terminal 51 and the negative electrode input terminal 52 each include an external terminal portion 53, a through-wall terminal portion 54, and a guide portion 55, wherein the external terminal portion 53 is in threaded connection with the through-wall terminal portion 54, the through-wall terminal portion 54 passes through the box and is fixed to the box by a bolt 56, the guide portion 55 is fixedly connected with the through-wall terminal portion 54, and the guide portion 55 is fixedly connected with the busbar copper set.
Referring to fig. 8, the external terminal portion 53 includes a sleeve portion 531 and a locking portion 532, the locking portion 532 is provided with a nesting portion 533, a button portion 534 and an external screw portion 535, the external screw portion 535 is connected with the internal screw of the sleeve portion 531 in a matching manner, and the nesting portion 533 is nested in the through-wall terminal portion 54; the through-wall terminal portion 54 includes a drainage column 541 and an insulating mounting seat 542, the insulating mounting seat 542 is provided with a via hole, the drainage column 541 passes through the via hole, the drainage column 541 is provided with an annular clamping portion 543, the annular clamping portion 543 is clamped with a buckle of the button portion 534, and the drainage column 541 is fixedly connected with the drainage portion 55.
The positive and negative lines of the battery are wound around the male screw portion 535 of the locking portion 532, and then the sleeve portion 531 is connected to the male screw portion 535 in a matching manner, thereby completing the electrical connection between the battery and the external terminal. The sleeve portion 531 outside sets up to insulating material, can increase the security, increases the vertical lines in the sleeve outside simultaneously, friction when can increasing to twist, and convenience of customers screws up sleeve portion 531. When the button portion 534 is in a natural state, the buckle of the button portion 534 protrudes from the gap between the nesting portion 533 and the locking portion 532; when the button portion 534 is pressed down, the buckle of the button retracts to the locking portion 532, the drainage column 541 passes through the gap between the nesting portion 533 and the locking portion 532, the button is released, and the buckle of the button protrudes again to the gap between the nesting portion 533 and the locking portion 532, and is clamped with the annular clamping portion 543 of the drainage column 541, so that the external terminal portion 53 is fixedly connected with the through-wall terminal portion 54, and meanwhile, the external terminal can rotate by taking the drainage column 541 as an axis due to the clamping, so that applicability is increased.
The foregoing description is only of the preferred embodiments of the present utility model and is not intended to limit the scope of the present utility model, so that any minor modifications, equivalent variations and modifications made to the above embodiments according to the technical principles of the present utility model are within the scope of the technical solutions of the present utility model.
Claims (10)
1. The utility model provides a high voltage direct current collection flow box for energy storage system which characterized in that includes:
a case;
the direct-current circuit breaker is fixed in the box body;
the bus transfer copper bar group comprises an anode bus transfer copper bar and a cathode bus transfer copper bar, and the anode bus transfer copper bar and the cathode bus transfer copper bar are respectively and electrically connected with a first anode input end and a first cathode input end of the direct current breaker;
the busbar copper bar group is fixedly connected with the box body through an insulating column and comprises an anode busbar copper bar and a cathode busbar copper bar which are respectively connected with the anode busbar switching copper bar and the cathode busbar switching copper bar;
the input terminal group comprises a plurality of positive input terminals and a plurality of negative input terminals, the positive input terminals are electrically connected with the positive bus copper bars through the box body, and the negative input terminals are electrically connected with the negative bus copper bars through the box body;
the output copper bar group comprises an anode output copper bar and a cathode output copper bar, the anode output copper bar is electrically connected with a first anode output end of the direct current circuit breaker, and the cathode output copper bar is electrically connected with a first cathode output end of the direct current circuit breaker;
the switch state control converter is fixed inside the box body and is connected with the direct current breaker through signals;
the switch state control conversion terminal penetrates through and is fixed to the box body, and the switch state control conversion terminal is electrically connected with the switch state control converter.
2. The hvth box for an energy storage system according to claim 1, wherein the box comprises a first housing, a second housing, a third housing, and an insulating plate, the first housing comprises a bottom, a first side, and a second side, and the first side and the second side are fixed to the bottom; the second shell comprises a back and a top, the back is fixedly connected with the bottom, the back is fixedly connected with the first side part and the second side part, and the top is fixedly connected with the first side part and the second side part; the third shell is fixedly connected with the first side part and the second side part, and is also fixedly connected with the top part; the insulating board sets up the below of third casing, the insulating board with first lateral part and second lateral part fixed connection, just the insulating board is provided with the through-hole, anodal output copper bar with the negative pole output copper bar passes the through-hole.
3. The hvth box for an energy storage system according to claim 2, wherein the first and second side portions are provided with a plurality of through holes, and the positive and negative input terminals pass through the through holes and are fixed to the first and second side portions, respectively.
4. The high-voltage direct-current combiner box for an energy storage system according to claim 3, wherein the first side portion is provided with a first bending portion, the second side portion is provided with a second bending portion, the first bending portion and the second bending portion are provided with a plurality of through holes, the positive input terminal passes through the through holes of the first bending portion, the negative input terminal passes through the through holes of the second bending portion, the first bending portion is fixedly connected with one end of the insulating plate, and the second bending portion is fixedly connected with the other end of the insulating plate.
5. The high-voltage direct-current combiner box for an energy storage system according to claim 2, wherein a fixing plate is arranged on the back surface of the direct-current breaker, the fixing plate is fixedly connected with the direct-current breaker through a bolt, and the fixing plate is fixedly connected with the first side part and the second side part through the bolt.
6. The hvth tank for an energy storage system according to claim 2, wherein the first side portion and the second side portion are provided with a plurality of heat dissipation holes.
7. The high voltage dc combiner box of claim 1, further comprising a switch tandem copper bar set comprising a first switch tandem copper bar and a second switch tandem copper bar, the first switch tandem copper bar electrically connected to the second positive input and the second negative input of the dc breaker, the second switch tandem copper bar electrically connected to the second positive output and the second negative output of the dc breaker.
8. The high-voltage direct-current junction box for an energy storage system according to claim 1, wherein the number of positive input terminals is 6, and the number of negative input terminals is 6.
9. The high-voltage direct-current combiner box for an energy storage system according to claim 1, wherein the positive input terminal and the negative input terminal comprise an external terminal part, a wall penetrating terminal part and a flow guiding part, the external terminal part is in threaded connection with the wall penetrating terminal part, the wall penetrating terminal part penetrates through the box body and is fixed to the box body through bolts, the flow guiding part is fixedly connected with the wall penetrating terminal part, and the flow guiding part is fixedly connected with the copper busbar group.
10. The high-voltage direct-current combiner box for an energy storage system according to claim 9, wherein the external terminal part comprises a sleeve part and a locking part, the locking part is provided with a nesting part, a button part and an external thread part, the external thread part is in matched connection with the internal thread of the sleeve part, and the nesting part is nested in the through-wall terminal part; the through-wall terminal part comprises a drainage column and an insulating mounting seat, wherein a through hole is formed in the insulating mounting seat, the drainage column penetrates through the through hole, an annular clamping part is arranged on the drainage column, the annular clamping part is clamped with the buckle of the button part, and the drainage column is fixedly connected with the drainage part.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320272005.4U CN219351040U (en) | 2023-02-21 | 2023-02-21 | High-voltage direct-current combiner box for energy storage system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320272005.4U CN219351040U (en) | 2023-02-21 | 2023-02-21 | High-voltage direct-current combiner box for energy storage system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219351040U true CN219351040U (en) | 2023-07-14 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320272005.4U Active CN219351040U (en) | 2023-02-21 | 2023-02-21 | High-voltage direct-current combiner box for energy storage system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219351040U (en) |
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2023
- 2023-02-21 CN CN202320272005.4U patent/CN219351040U/en active Active
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