Combined high-explosive power distribution device

Abstract

The application relates to the technical field of power distribution equipment, and discloses a combined high-explosive power distribution device which comprises a shell, electrical elements arranged in the shell, a plurality of partitions arranged in the shell, installation cavities formed between two partitions and between the partitions and the shell for installing electrical elements of different power distribution devices, a busbar row arranged in the shell for connecting the different power distribution devices, and connecting holes formed in the partitions for allowing the busbar row to pass through. Electrical elements of multiple power distribution devices are installed in the shell, and the electrical elements of the multiple power distribution devices are electrically connected together through the busbar row, so that the land occupation of the power distribution device is reduced, and the wiring steps are simplified.

Description

TECHNICAL FIELD

[0001] The application relates to the technical field of power distribution equipment, and in particular to a combined high-explosion power distribution device. BACKGROUND

[0002] The high-explosion power distribution device refers to a power distribution device specially designed for flammable and explosive environments. When an explosion occurs inside, the device can prevent the spread of explosion flames and high-temperature gases to the external environment through special structural design and material selection, thereby avoiding triggering a larger explosion accident. This device not only provides power distribution and control functions, but also ensures the safe and reliable operation of electrical systems in dangerous environments.

[0003] In the related art, the power distribution device includes an explosion-proof shell and electrical elements arranged in the shell. The power distribution device adopts a single integrated structure and is connected to other power distribution devices through a wiring drum, resulting in a complex wiring structure. Multiple power distribution devices are arranged horizontally, occupying a large amount of space, which leads to low space utilization. Therefore, there is room for improvement. SUMMARY

[0004] In order to reduce the floor space occupied by the power distribution device, the application provides a combined high-explosion power distribution device.

[0005] The combined high-explosion power distribution device provided by the application adopts the following technical solution:

[0006] A combined high-explosion power distribution device includes a shell and electrical elements arranged in the shell. The shell is provided with multiple partitions. The space between two partitions and the partition and the shell forms a mounting cavity for mounting electrical elements of different power distribution devices. The shell is provided with a busbar for connecting different power distribution devices. The partition is provided with a connecting hole for the busbar.

[0007] By adopting the above technical solution, when multiple power distribution devices need to be connected together, the electrical elements of different power distribution devices can be installed in different mounting cavities, and then the busbar can be used to connect each power distribution device. By connecting multiple power distribution devices in the above manner, three-dimensional arrangement of multiple power distribution devices is achieved. Compared with single power distribution devices connected by a wiring drum, the wiring drum is not needed, the gap between two power distribution devices is shortened, the floor space occupied by the power distribution device is reduced, and the space utilization of the power distribution device is improved.

[0008] At the same time, the busbar is used to achieve electrical connection of multiple power distribution devices. When other equipment needs to be connected to the power distribution device, the new equipment can be directly connected to the busbar for plug-and-play, which is convenient and fast. The partition can also physically separate different voltage level equipment, reducing the possibility of explosion caused by arc interference, and improving the safety of the power distribution device.

[0009] Optionally, the power distribution device further comprises a first combined box and a second combined box, the first combined box and the second combined box are stacked in a vertical direction, the first combined box and the second combined box each comprise a main feeder box, a plurality of sub-feeder boxes and a control box, the bus bars are respectively arranged in the first combined box and the second combined box, the bus bars are used for connecting the main feeder box, the sub-feeder boxes and the control box, the main feeder boxes are respectively connected with a power supply, one of the power supplies is used for supplying power to the first combined box, and the other power supply is used for supplying power to the second combined box.

[0010] By adopting the above technical scheme, the first combined box and the second combined box are stacked, and the floor space of the power distribution device is further reduced. The first combined box and the second combined box are independently powered, and when a single power supply fails, the normal operation of the other layer is not affected.

[0011] Optionally, the sub-feeder box is provided with a tie-in switch, the tie-in switch is electrically connected with the control box, the tie-in switch further comprises a moving contact and a stationary contact, the tie-in switch can connect or disconnect the moving contact and the bus bar, one of the sub-feeder boxes is provided with a connecting terminal, the connecting terminal is arranged in the sub-feeder box of the first combined box and the sub-feeder box of the second combined box respectively, and the connecting terminal connects the stationary contact in the first combined box and the bus bar of the second combined box.

[0012] By adopting the above technical scheme, when the power distribution device is normally working, the moving contact and the stationary contact of the tie-in switch are electrically connected, and the power supplies connected with the two main feeder boxes supply power to the first combined box and the second combined box through the two bus bars respectively. When the power supply connected with the main feeder box of the first combined box fails, the control box of the first combined box controls the tie-in switch to connect the moving contact and the bus bar, so that the power supply connected with the main feeder box of the second combined box is connected with the bus bar of the first combined box, thereby realizing that the power supply of the second combined box supplies power to the first combined box at the same time. When the power supply of the second combined box fails, the power supply switching step is the same as above. By switching the power supply in the above manner, the time for switching the power supply in the event of a failure is short, which maximizes the normal operation of the power distribution equipment. Even if one power supply fails, the other layer box can also work normally, realizing single power supply control of multiple layer boxes, making the power distribution device flexible and adaptable. The connecting terminal is built into the shell, compared with the original wiring method outside the shell, the wiring steps are saved, the connection is more stable, which is conducive to protecting the wiring terminal from being damaged, and the whole operation does not need to open the shell, thereby reducing the risk of live work.

[0013] Optionally, the shell comprises side plates and a plurality of upper cover plates, the upper cover plates are detachably connected to the side plates, the partition plate is provided with a sliding hole, the partition plate is provided with a plurality of indication assemblies, the indication assemblies comprise a first travel switch arranged on a side of the partition plate away from the upper cover plate, a first elastic member arranged on a side of the partition plate close to the upper cover plate, and a trigger rod slidingly arranged in the sliding hole, the trigger rod slides towards or away from the upper cover plate, the first elastic member can push the trigger rod towards the upper cover plate, the first travel switch is electrically connected to the control box, the first travel switch outputs a cover plate closed signal when turned on and outputs a full-off signal when turned off, and when the upper cover plate is connected to the side plate, one end of the trigger rod abuts against the upper cover plate and the other end abuts against the first travel switch.

[0014] By adopting the above technical scheme, when the box needs to be overhauled, the upper cover plate can be opened first, at this time the upper cover plate no longer abuts against the trigger rod, so that the trigger rod slides towards the upper cover plate under the action of the first elastic member, so that the trigger rod releases the abutment of the first travel switch, so that the first travel switch is turned off, so that the first travel switch outputs a full-off signal to the control box, so that the box is automatically powered off when the upper cover plate is opened, facilitating the overhaul and reducing the risk of accidentally touching the live parts when the upper cover plate is opened. When the upper cover plate is closed, the upper cover plate pushes the trigger rod towards the partition plate and compresses the elastic member, so that one end of the trigger rod abuts against the upper cover plate and the other end abuts against the first travel switch, so that the first travel switch is turned on, so that the first travel switch outputs a cover plate closed signal to the control box, prompting the control box that the cover plate has been tightly closed and allowing the box to be powered on. The power-on and power-off of the box are synchronized with the closing and opening of the upper cover plate, facilitating the overhaul and eliminating the need to additionally set a power switch. The trigger rod is rigidly connected to the upper cover plate and the first travel switch, compared with using an electronic sensor, the risk of live unlocking caused by false reporting of the electronic sensor is reduced.

[0015] Optionally, the sliding hole is provided with a sliding ring, both ends of the sliding ring extend out of the sliding hole, and the trigger rod is slidingly arranged in the sliding ring.

[0016] By adopting the above technical scheme, when the trigger rod slides in the sliding hole, the sliding ring can guide the sliding of the trigger rod, so that the trigger rod slides more stably in the sliding hole, so that the trigger rod can better abut against the upper cover plate and the first travel switch, so that the box can normally automatically power off when the cover plate is opened and the box can normally automatically power on when the cover plate is closed.

[0017] Optionally, the trigger rod comprises a sliding part and an extension part, the extension part is detachably connected to the sliding part, the extension part is arranged on a side of the sliding part close to the upper cover plate, and the sliding part is slidingly arranged in the sliding hole.

[0018] By adopting the technical scheme, when the extension part or the sliding part is deformed and worn after long-term use, only the extension part or the sliding part needs to be replaced, and the trigger rod does not need to be replaced, thereby saving resources.

[0019] Optionally, the first elastic member comprises a reset spring sleeved on the sliding part, the sliding part is provided with a limiting ring at one end close to the extension part, one end of the reset spring abuts against the limiting ring, and the other end of the reset spring abuts against the sliding ring.

[0020] By adopting the technical scheme, when the upper cover plate is opened, the reset spring extends in the direction close to the upper cover plate, thereby pushing the trigger rod in the direction close to the upper cover plate, so that the trigger rod no longer abuts against the first travel switch, the first travel switch is closed, and the cabinet is powered off. The limiting ring can limit the reset spring, so that the reset spring is not easy to be separated from the sliding part, thereby improving the pushing effect of the reset spring on the trigger rod. The sliding part can guide the deformation direction of the reset spring, so that the reset spring is not easy to deform, and the service life of the reset spring is prolonged.

[0021] Optionally, the shell further comprises a plurality of lower cover plates, the lower cover plates are detachably connected to the side plates, each of the main feeder cabinet, the feeder cabinet and the control cabinet corresponds to one upper cover plate and one lower cover plate, the partition plate is provided with a mounting hole, the partition plate is provided with a plurality of opening and closing assemblies, the opening and closing assembly comprises a linkage rod slidingly arranged in the mounting hole, a second travel switch arranged on the side of the partition plate away from the lower cover plate, and a second elastic member arranged on the side of the partition plate close to the lower cover plate, the linkage rod slides in the mounting hole in the direction close to or away from the lower cover plate, the second elastic member can drive the linkage rod to slide in the direction close to the lower cover plate, when the lower cover plate is connected to the side plate, one end of the linkage rod abuts against the lower cover plate, and the other end of the linkage rod abuts against the second travel switch, the second travel switch is electrically connected to the control cabinet, the second travel switch outputs a lower cover plate closed signal when the second travel switch is opened, the second travel switch outputs a power-off signal to separately power off the cabinet opened by the lower cover plate when the second travel switch is closed, and the first travel switch outputs a full power-off signal to power off the first combined cabinet or the second combined cabinet when the first travel switch is closed.

[0022] By adopting the technical scheme, when one of the cabinets needs to be overhauled, the lower cover plate of the main feeder cabinet, the feeder cabinet or the control cabinet that needs to be overhauled is opened, the linkage rod is released, the linkage rod slides away from the partition plate under the action of the second elastic member, the linkage rod no longer abuts on the second travel switch, the second travel switch is closed, the second travel switch outputs a break signal to the control cabinet, the single cabinet is powered off, other equipment on the same layer is normally operated during the single cabinet overhaul, and the power-off time is reduced. When the lower cover plate is closed, the linkage rod abuts on the lower cover plate and the second travel switch, the second travel switch is opened, the second travel switch outputs a lower cover plate closure signal to the control cabinet, and the staff is prompted that the lower cover plate has been tightly closed, and whether the lower cover plate is closed well can be known.

[0023] When multiple cabinets need to be overhauled, the upper cover plate of one of the cabinets is first opened, the first travel switch is closed, the first travel switch outputs a full break signal to the control cabinet, the first group of cabinets or the second group of cabinets are powered off, and the cabinets do not need to be powered off one by one, so that multiple cabinets can be overhauled.

[0024] In summary, the present application has at least one of the following beneficial technical effects:

[0025] 1. By integrating multiple power distribution devices in the same housing and arranging a plurality of partitions in the housing to isolate electrical elements in each power distribution device, and electrically connecting each power distribution device through a bus bar, the complex wiring steps are saved, and the land occupation of the power distribution device is reduced;

[0026] 2. The static contact in the first group of cabinets and the bus bar of the second group of cabinets are connected through the built-in connection terminal, and the bus bar in the first group of cabinets and the bus bar of the second group of cabinets are switched off and conducted through the tie-in switch, to realize the switching of double power supply and single power supply, that is, even if one of the power supplies fails, the first group of cabinets and the second group of cabinets can normally operate;

[0027] 3. The indication assembly and the breaking assembly can grade power off the cabinets, so that when only a single cabinet needs to be overhauled, the other cabinets can normally operate, and when multiple cabinets need to be overhauled, the cabinets on the same layer are all powered off, which is convenient for overhaul and reduces the risk of live operation. BRIEF DESCRIPTION OF DRAWINGS

[0028] Figure 1 is a whole structure diagram of an embodiment of the present application.

[0029] Figure 2 is a structure diagram for showing the bus bar after hiding part of the housing in the embodiment of the present application.

[0030] Figure 3is a local structure schematic diagram of an indication assembly used for display in the embodiment of the present application.

[0031] Figure 4 is a local structure schematic diagram of a contact switch used for display in the embodiment of the present application.

[0032] Figure 5 is a local structure schematic diagram of a second travel switch used for display in the embodiment of the present application.

[0033] Legend:

[0034] 1, shell; 11, side plate; 12, upper cover plate; 13, lower cover plate; 14, partition plate; 141, connecting hole; 142, sliding hole; 143, mounting hole; 144, sliding ring; 15, mounting cavity; 16, cabinet door; 2, first combined box body; 21, main feeder box; 22, sub-feeder box; 23, control box; 3, second combined box body; 4, electrical element; 5, busbar; 6, indication assembly; 61, first travel switch; 62, first elastic member; 621, reset spring; 63, trigger rod; 631, sliding part; 632, extension part; 633, limiting ring; 7, breaking assembly; 71, linkage rod; 72, second travel switch; 73, second elastic member; 731, connecting spring; 8, contact switch; 81, moving contact; 82, stationary contact; 9, connecting terminal. DETAILED DESCRIPTION

[0035] The following will be described in detail in combination with the accompanying Figures 1-5 The present application will be further described in detail.

[0036] The embodiment of the present application discloses a combined high-explosive power distribution device.

[0037] Referring to Figure 1 and Figure 2 , a combined high-explosive power distribution device comprises a shell 1, a first combined box body 2 and a second combined box body 3 arranged in the shell 1, and electrical elements 4 of a plurality of power distribution devices arranged in the first combined box body 2 and the second combined box body 3. The shell 1 comprises a side plate 11, a plurality of upper cover plates 12, a plurality of lower cover plates 13 and a plurality of cabinet doors 16, the upper cover plates 12 and the lower cover plates 13 are detachably connected to the side plate 11, and in the embodiment, the upper cover plates 12 and the lower cover plates 13 are preferably connected to the side plate 11 by bolts, and in other cases, other detachable connection modes can be selected according to customer requirements.

[0038] Referring to Figure 1 and Figure 2The shell 1 is provided with a plurality of partitions 14, and installation cavities 15 for installing electrical elements 4 of different power distribution devices are formed between two partitions 14 and between the partition 14 and the shell 1. Each installation cavity 15 corresponds to an upper cover plate 12, a lower cover plate 13 and a cabinet door 16. Two layers of installation cavities 15 are formed in the shell 1 and are arranged in an overlapping manner in the vertical direction. Through the above arrangement, the floor space occupied by the combination of different power distribution devices is reduced.

[0039] With reference to Figure 1 and Figure 2 , the first combination box 2 and the second combination box 3 are arranged in an overlapping manner in the vertical direction, and the electrical elements 4 in the first combination box 2 and the second combination box 3 are arranged in the two layers of installation cavities 15, respectively. The first combination box 2 is arranged above the second combination box 3, and the first combination box 2 and the second combination box 3 each include a main feeder box 21, a plurality of sub-feeder boxes 22 and a control box 23. Two main feeder boxes 21 are each connected with a power supply (not shown in the figure). The number of sub-feeder boxes 22 in the embodiment is preferably four, and the sub-feeder boxes 22 are arranged between the main feeder box 21 and the control box 23. The electrical elements of the main feeder box 21, the sub-feeder box 22 and the control box 23 are arranged in separate installation cavities 15.

[0040] With reference to Figure 2 , the shell 1 is provided with two groups of bus bars 5, which are arranged in the first combination box 2 and the second combination box 3, respectively, and are used for connecting the main feeder boxes 21, the sub-feeder boxes 22 and the control boxes 23 in the first combination box 2 and the second combination box 3, respectively. The partition 14 is provided with a connecting hole 141 for the bus bar 5 to pass through.

[0041] With reference to Figure 2 and Figure 3 , the partition 14 is provided with a plurality of indication assemblies 6 and opening and closing assemblies 7, and one indication assembly 6 and one opening and closing assembly 7 are arranged in each installation cavity 15. The partition 14 away from the upper cover plate 12 and the lower cover plate 13 of each installation cavity 15 is provided with a sliding hole 142 and a mounting hole 143. The sliding hole 142 is arranged in the area of the partition 14 that is horizontal to the upper cover plate 12, and the mounting hole 143 is arranged in the area of the partition 14 that is horizontal to the lower cover plate 13.

[0042] With reference to Figure 3 and Figure 4The indicating assembly 6 comprises a first travel switch 61 arranged on the partition plate 14 away from the upper cover plate 12, a first elastic member 62 arranged on the partition plate 14 close to the upper cover plate 12, and a trigger rod 63 slidingly arranged in the sliding hole 142 and sliding towards or away from the upper cover plate 12. The first elastic member 62 comprises a reset spring 621 sleeved on the trigger rod 63, the extension direction of the reset spring 621 is consistent with the sliding direction of the trigger rod 63, and the reset spring 621 can drive the trigger rod 63 to slide towards the upper cover plate 12. When the upper cover plate 12 is connected to the side plate 11, one end of the trigger rod 63 abuts against the upper cover plate 12, the other end abuts against the first travel switch 61 and opens the first travel switch 61.

[0043] With reference to Figure 3 and Figure 5 The breaking assembly 7 comprises a linkage rod 71 slidingly arranged in the mounting hole 143, a second travel switch 72 arranged on the partition plate 14 away from the lower cover plate 13, and a second elastic member 73 arranged on the partition plate 14 close to the lower cover plate 13. The linkage rod 71 slides towards or away from the lower cover plate 13 in the mounting hole 143. The second elastic member 73 comprises a connecting spring 731 sleeved on the linkage rod 71, the extension direction of the connecting spring 731 is the same as the sliding direction of the linkage rod 71, and the connecting spring 731 has a tendency to drive the linkage rod 71 to slide towards the lower cover plate 13. When the lower cover plate 13 is connected to the side plate 11, one end of the linkage rod 71 abuts against the lower cover plate 13, the other end abuts against the second travel switch 72 and opens the second travel switch 72.

[0044] With reference to Figure 3 The sliding hole 142 and the mounting hole 143 are both provided with a sliding ring 144, both ends of the sliding ring 144 extend out of the sliding hole 142 and the mounting hole 143, and the trigger rod 63 and the linkage rod 71 are slidingly arranged in the sliding ring 144. The trigger rod 63 comprises a sliding part 631 and an extension part 632, the extension part 632 is detachably connected with the sliding part 631, and in the embodiment, the extension part 632 and the sliding part 631 can be connected by bolts. The extension part 632 is arranged on the side of the sliding part 631 close to the upper cover plate 12, and the sliding part 631 is slidingly arranged in the sliding hole 142. The linkage rod 71 has the same structure as the trigger rod 63, that is, the linkage rod 71 also comprises an extension part 632 and a sliding part 631.

[0045] With reference to Figure 3 One end of the sliding part 631 close to the extension part 632 is provided with a limiting ring 633, one end of the reset spring 621 and the connecting spring 731 abuts against the limiting ring 633, and the other end abuts against the sliding ring 144.

[0046] With reference to Figure 1 ,Figure 2 and Figure 3 The first travel switch 61 and the second travel switch 72 are electrically connected with the control box 23, and the first travel switch 61 outputs a closing signal of the upper cover plate 12 when it is opened and outputs a full-off signal when it is closed. When the first travel switch 61 outputs the full-off signal to the control box 23, the control box 23 can control the first combined box body 2 or the second combined box body 3 as a whole to be powered off, so as to maintain the multiple box bodies. When the second travel switch 72 is opened, it outputs a closing signal of the lower cover plate 13, and when it is closed, it outputs a one-off signal. When the second travel switch 72 outputs the one-off signal to the control box 23, the control box 23 can separately power off the box body with the opened lower cover plate 13, so as to maintain the single box body.

[0047] Referring to Figure 1 When the combined power distribution device is normally operated, the power supply connected with the main feeder box 21 in the first combined box body 2 is used to supply power to the first combined box body 2, and the power supply connected with the main feeder box 21 in the second combined box body 3 is used to supply power to the second combined box body 3.

[0048] Referring to Figure 2 and Figure 4 One of the sub-feeder boxes 22 is provided with a tie-in switch 8 and a connecting terminal 9. The tie-in switch 8 is electrically connected with the control box 23. The tie-in switch 8 further comprises a moving contact 81 and a stationary contact 82. The tie-in switch 8 can connect and disconnect the moving contact 81 and the busbar 5. The connection and disconnection of the moving contact 81 and the busbar 5 is a prior art, and thus will not be described in detail. After the tie-in switch 8 is installed in the sub-feeder box 22, the moving contact 81 and the stationary contact 82 are always connected together.

[0049] Referring to Figure 1 , Figure 2 and Figure 4 The two ends of the connecting terminal 9 are respectively arranged in the sub-feeder box 22 of the first combined box body 2 and the second combined box body 3. One end of the connecting terminal 9 is connected with the stationary contact 82 of the first combined box body 2 through a wire, and the other end is connected with the busbar 5 of the second combined box body 3 through a wire, so that the stationary contact 82 of the tie-in switch 8 and the busbar 5 of the second combined box body 3 are electrically connected.

[0050] The implementation principle of the combined high-explosion power distribution device according to the embodiment of the application is that the shell 1 is divided into multiple installation cavities 15 by the partition plate 14, and the electrical elements 4 of multiple power distribution devices are installed in different installation cavities 15. Then the main feeder box 21, the sub-feeder box 22 and the control box 23 are connected through the busbar 5, without the need to additionally configure a wiring structure, thereby simplifying the installation steps and reducing the occupied space of the power distribution device.

[0051] When the power supply connected to the main feeder box 21 in the first combined box 2 or the second combined box 3 fails, the control box 23 automatically controls the contact switch 8 to connect the movable contact 81 with the busbar 5 of the first combined box 2, so that the busbars 5 of the first combined box 2 and the second combined box 3 are connected, and the first combined box 2 and the second combined box 3 are powered by a single power supply, so that the overall combined power distribution device can work normally even if one power supply fails, and the adaptability and flexibility of the combined power distribution device are improved.

[0052] The above are preferred embodiments of the present application, and do not limit the protection scope of the present application, so that: any equivalent changes made according to the structure, shape, principle of the present application should be covered within the protection scope of the present application.

Claims

1. A combined high-explosive power distribution device, comprising a housing (1), characterized in that: The outer shell (1) is provided with multiple partitions (14), and mounting cavities (15) for installing electrical components (4) of different power distribution devices are formed between two partitions (14) and between the partitions (14) and the outer shell (1). The outer shell (1) is provided with busbars (5) for connecting different power distribution devices. The partitions (14) are provided with connection holes (141) for the busbars (5) to pass through. The outer shell (1) has two layers of mounting cavities (15), which are stacked in the vertical direction. It also includes a first combined enclosure (2) and a second combined enclosure (3). The electrical components (4) in the first combined enclosure (2) and the second combined enclosure (3) are respectively installed in two mounting cavities (15). The first combined enclosure (2) and the second combined enclosure (3) each include a main feeder box (21), multiple sub-feeder boxes (22) and a control box (23). The busbar (5) is provided in the first combined enclosure (2) and the second combined enclosure (3). The busbar (5) is used to connect the main feeder box (21), the sub-feeder boxes (22) and the control box (23). Each of the main feed box (21), sub-feed box (22), and control box (23) corresponds to an upper cover plate (12) and a lower cover plate (13). The partition plate (14) is provided with several indicating components (6) and switching components (7). The indicating component (6) includes a first limit switch (61), a first elastic element (62), and a trigger rod (63). The first elastic element (62) can push the trigger rod (63) towards the upper cover plate (12). The switching component (7) includes a linkage rod (71), a second limit switch (72), and a second elastic element (73). The second elastic element (73) can drive the linkage rod (71) towards the lower cover plate (13). The first limit switch (61) and the second limit switch (72) are electrically connected to the control box (23). When the second limit switch (72) is closed, it outputs a cut-off signal to disconnect the power to the box with the lower cover (13) open. When the first limit switch (61) is closed, it outputs a full cut-off signal to disconnect the power to the first combined box (2) or the second combined box (3). The trigger rod (63) includes a sliding part (631) and an extension part (632). The first elastic member (62) includes a return spring (621) sleeved on the sliding part (631). A limit ring (633) is provided at one end of the sliding part (631) near the extension part (632).

2. The combined high-explosive power distribution device according to claim 1, characterized in that: Each of the main feeder boxes (21) is connected to a power source. One power source supplies power to the first combined box (2) and the other power source supplies power to the second combined box (3). Each sub-feeder box (22) is equipped with a communication switch (8). The communication switch (8) is electrically connected to the control box (23). The communication switch (8) also includes a moving contact (81) and a stationary contact (82). The communication switch (8) can connect and disconnect the moving contact (81) from the busbar (5). One of the sub-feeder boxes (22) is equipped with a connection terminal (9). The connection terminal (9) connects the stationary contact (82) in the first combined box (2) to the busbar (5) of the second combined box (3).

3. A combined high-explosive power distribution device according to claim 1, characterized in that: The outer casing (1) includes a side plate (11). The upper cover plate (12) and the lower cover plate (13) are detachably connected to the side plate (11). The trigger rod (63) slides towards or away from the upper cover plate (12). When the first limit switch (61) is turned on, it outputs a signal to close the upper cover plate (12). When the upper cover plate (12) is connected to the side plate (11), one end of the trigger rod (63) abuts against the upper cover plate (12) and the other end abuts against the first limit switch (61).

4. A combined high-explosive power distribution device according to claim 3, characterized in that: The partition (14) has a sliding hole (142), and a sliding ring (144) is provided on the wall of the sliding hole (142). The two ends of the sliding ring (144) extend out of the sliding hole (142), and the trigger rod (63) is slidably disposed in the sliding ring (144).

5. A combined high-explosive power distribution device according to claim 4, characterized in that: The extension (632) is detachably connected to the sliding part (631). The extension (632) is disposed on the side of the sliding part (631) near the upper cover plate (12). The sliding part (631) is slidably disposed in the sliding hole (142).

6. A combined high-explosive power distribution device according to claim 4, characterized in that: One end of the return spring (621) abuts against the limiting ring (633), and the other end abuts against the sliding ring (144).

7. A combined high-explosive power distribution device according to claim 3, characterized in that: The partition (14) has a mounting hole (143). The linkage rod (71) slides in the mounting hole (143) toward or away from the lower cover plate (13). When the lower cover plate (13) is connected to the side plate (11), one end of the linkage rod (71) abuts against the lower cover plate (13) and the other end abuts against the second limit switch (72). When the second limit switch (72) is opened, it outputs a signal to close the lower cover plate (13).

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