Design structure of shell module integrated explosion-proof power distribution device

Abstract

The utility model relates to a design structure of a shell module integrated explosion-proof power distribution device. The technical problems that existing functions are low in integration level and inconvenient to overhaul and maintain, a wiring gap exists between a control box and a junction box, and explosion is prone to occurring are solved. Comprising a shell set, a junction box set is correspondingly arranged at the lower end of the shell set, the shell set is provided with a plurality of control shells arranged in parallel, and the junction box set is provided with a plurality of junction box bodies arranged in parallel and in one-to-one correspondence with the control shells. The control shell and the wiring box body are connected through a plurality of connecting bolts, an epoxy resin encapsulation part is arranged between the control shell and the wiring box body, and a leading-in device is arranged at the end, away from the control shell, of the wiring box body. The modularized power distribution device has the advantages that the control shell and the wiring box body of each monomer are designed into a modularized structure, so that the structure of the whole power distribution device is more compact, the practical effect is better, and meanwhile, according to the use requirements of users, the loops are freely combined, so that the installation, the use, the maintenance and the management are more convenient.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of explosion -proof power distribution equipment, concretely relates to a design structure of shell module integrated type explosion -proof power distribution device. BACKGROUND

[0002] As a kind of electric power device in explosive hazardous environment, explosion -proof power distribution device is extremely widely used.In prior art, the power distribution device of the past is often designed complex, and the function integration degree is lower, so internal structure is not convenient to overhaul and maintain, and it needs professional personnel to spend a lot of time and effort to operate, and simultaneously, power distribution device can only simply realize power distribution and basic protection function, and there is still wiring gap between the control box and terminal box of power distribution device, and external flammable and explosive gas can enter through the gap, and simultaneously, power distribution device inevitably generates electric spark when working, to cause explosion accident to occur. SUMMARY

[0003] The utility model aims at above -mentioned problem, provide a design structure of shell module integrated type explosion -proof power distribution device.

[0004] To achieve the above object, the utility model adopts the following technical scheme: a design structure of shell module integrated type explosion -proof power distribution device, including shell group, the lower end of shell group is equipped with corresponding setting terminal box group, shell group has several parallel arrangement control shell body, terminal box group has several parallel arrangement and with control shell body one to one corresponding terminal box body, control shell body and terminal box body are connected by several connecting bolts, and epoxy resin potting part is equipped between control shell body and terminal box body, and terminal box body is equipped with lead -in device away from control shell body one end.Adopted modularization to optimize combination integration to explosion -proof power distribution device, make entire power distribution configuration structure more compact, use effect better, simultaneously, control shell body and terminal box group are made of high strength, corrosion -resistant material, improve overall strength and sealing property, can make the ability produced by explosion effectively inhibit inside, improve security, and integrated design improves the convenience of operation and maintenance.

[0005] In the design structure of the shell module integrated explosion-proof power distribution device, the control shell is provided with line outlet holes on both sides of one end close to the terminal box, the line outlet holes are provided with shell fixing holes at four corners, the terminal box is provided with line inlet holes corresponding to the line outlet holes on both sides of one end close to the control shell, the line inlet holes are provided with shell connecting holes corresponding to the shell fixing holes at four corners, the connecting bolts are arranged between the shell fixing holes and the shell connecting holes, the explosion-proof sealing gaskets are arranged between the line outlet holes and the line inlet holes, and the epoxy resin pouring sealing part is arranged in the line outlet hole. The pouring sealing length of the epoxy resin pouring sealing part is greater than or equal to 20 mm, the pouring sealing length of the epoxy resin pouring sealing part is greater than or equal to 20 mm, the epoxy resin pouring sealing part has high insulation resistance and electrical strength, can isolate the live parts in the electrical equipment from the shell and other non-live parts, prevent electrical faults such as electric leakage and short circuit, avoid sparks caused by electrical faults from becoming a fire source to ignite flammable and explosive substances, and ensure the safe operation of the equipment.

[0006] In the design structure of the shell module integrated explosion-proof power distribution device, the explosion-proof sealing gaskets are provided with sealing gasket holes corresponding to the shell fixing holes at four corners, the explosion-proof sealing gaskets are circumferentially provided with a plurality of wire holes of different sizes, and the line outlet holes are communicated with the line inlet holes through the wire holes.

[0007] In the design structure of the shell module integrated explosion-proof power distribution device, the lead-in device includes at least one plug or explosion-proof cable lead-in port arranged at one end of the terminal box away from the control shell, one end of the plug or explosion-proof cable lead-in port is connected with the terminal box through a fixing screw, the plug or explosion-proof cable lead-in port is provided with an increased safety terminal on the circumferential outer side close to the terminal box, and a port sealing gasket is arranged between the plug or explosion-proof cable lead-in port and the terminal box.

[0008] In the design structure of the shell module integrated explosion-proof power distribution device, the control shell is provided with a control cavity on the inner side, one side of the control shell is provided with a control shell cover capable of closing the control cavity, the circumferential outer side of the control shell is provided with a plurality of shell cover fixing holes, the circumferential outer side of the control shell cover is provided with a plurality of shell cover connecting holes corresponding to the shell cover fixing holes, and the shell cover fixing holes and the shell cover connecting holes are provided with shell cover fixing bolts.

[0009] In the design structure of the shell module integrated explosion-proof power distribution device, the operation cavity is provided with at least one of any one of a molded case circuit breaker, several miniature circuit breakers and at least one instrument, and the middle of the operation shell cover is provided with a molded case circuit breaker operation switch corresponding to the molded case circuit breaker or a miniature circuit breaker operation switch corresponding to the miniature circuit breaker.

[0010] In the design structure of the shell module integrated explosion-proof power distribution device, the operation cavity is provided with at least one of any one of a molded case circuit breaker, several miniature circuit breakers and at least one instrument, and the middle of the operation shell cover is provided with a molded case circuit breaker operation switch corresponding to the molded case circuit breaker or a miniature circuit breaker operation switch corresponding to the miniature circuit breaker. Operation shell can be freely installed according to the needs of elements, and the instrument can adopt any one of type instrument, type instrument and type instrument, which improves the practicability.

[0011] In the design structure of the shell module integrated explosion-proof power distribution device, the inside of the terminal box is provided with a terminal cavity, one side of the terminal cavity is provided with a terminal box cover capable of closing the terminal cavity, four corners of the terminal box body are respectively provided with box cover fixing holes, four corners of the terminal box cover are respectively provided with box cover connecting holes corresponding to the box cover fixing holes, and the box cover fixing holes and the box cover connecting holes are provided with box cover fixing screws.

[0012] In the design structure of the shell module integrated explosion-proof power distribution device, the inside of the terminal cavity is provided with several terminal ends, and the terminal cavity of one of the terminal boxes is provided with several explosion-proof indicator lamps, the upper end of the terminal box cover is provided with several operation heads corresponding to the explosion-proof indicator lamps, and the lower end of the terminal box cover is provided with a nameplate.

[0013] In the design structure of the shell module integrated explosion-proof power distribution device, the terminal box cover is provided with an end cover sealing groove near the terminal box body, and the end cover sealing groove is provided with an end face sealing strip in contact with the terminal box body. The end face sealing strip can ensure the sealing property between the terminal box cover and the terminal box body.

[0014] Compared with the prior art, the utility model has the advantages that:

[0015] 1. The operation shell and the terminal box of the device are designed into a modular structure, so that the structure of the entire power distribution device is more compact, the practical effect is better, and according to the use requirements of users, each circuit is freely combined, so that installation, use and maintenance management are more convenient.

[0016] 2. The device is provided with an explosion-proof sealing gasket between the operation shell and the terminal box, and is reinforced by an epoxy resin pouring part, which can effectively prevent the flammable and explosive gas and dust outside from entering the gap between the operation shell and the terminal box, and avoid the contact with the internal dangerous energy source such as electric spark, so as to reduce the risk of explosion. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 is a structural schematic view of the utility model.

[0018] Figure 2 is a structural sectional view of the utility model.

[0019] Figure 3 is a structural sectional view of the utility model from another perspective.

[0020] Figure 4 is a front view of the operation shell in the utility model.

[0021] Figure 5 is a bottom view of the operation shell in the utility model.

[0022] Figure 6 is a structural sectional view of the operation shell in the utility model.

[0023] Figure 7 is a front view of the terminal box in the utility model.

[0024] Figure 8 is a bottom view of the terminal box in the utility model.

[0025] Figure 9 is a structural side view of the terminal box cover in the utility model.

[0026] Figure 10 is a structural schematic view of the explosion-proof sealing gasket in the utility model.

[0027] In the figure: shell group 1, control shell 11, wire hole 12, shell fixing hole 13, control cavity 14, plastic shell circuit breaker 141, small circuit breaker 142, control shell cover 15, plastic shell circuit breaker operation switch 151, small circuit breaker operation switch 152, shell cover fixing hole 16, shell cover connecting hole 17, shell cover fixing bolt 18, shell cover sealing groove 19, shell cover sealing strip 20, terminal box group 2, terminal box body 21, wire inlet hole 22, shell connecting hole 23, terminal cavity 24, terminal 241, explosion-proof indicating lamp 242, terminal box cover 25, operating head 251, nameplate 252, box cover fixing hole 26, box cover connecting hole 27, box cover fixing screw 28, end cover sealing groove 29, end face sealing strip 30, connecting bolt 3, epoxy resin pouring part 31, explosion-proof sealing gasket 32, sealing gasket hole 33, threading hole 34, lead-in device 4, plug or explosion-proof cable lead-in port 41, fixing screw 42, increased safety type through hole 43, port sealing gasket 44. DETAILED DESCRIPTION

[0028] The utility model will be explained in further detail below in combination with the drawings and specific embodiments.

[0029] As Figures 1-10 shown, a design structure of a shell module integrated explosion-proof power distribution device, comprising a shell group 1, the shell group 1 lower end is equipped with corresponding setting terminal box group 2, the shell group 1 has several parallel arrangement control shell 11, the terminal box group 2 has several parallel arrangement and with control shell 11 one-to-one corresponding terminal box body 21, control shell 11 and terminal box body 21 are connected through several connecting bolts 3 and control shell 11 and terminal box body 21 are equipped with epoxy resin pouring part 31, and terminal box body 21 is away from control shell 11 one end and is equipped with lead-in device 4. The modularization is used to optimize combination integration to explosion-proof power distribution device, makes the whole power distribution configuration structure more compact, and the use effect is better, simultaneously control shell 11 and terminal box group 21 are made of high-strength, corrosion-resistant material, improve the overall strength and sealing property, can make the ability produced by explosion effectively inhibit inside, improve the security, and the integrated design improves the convenience of operation and maintenance.

[0030] In combination Figure 2 with Figure 3As shown, the control shell 11 is provided with an outlet hole 12 on each side near one end of the terminal box 21. The outlet hole 12 is provided with a shell fixing hole 13 at each corner. The terminal box 21 is provided with an inlet hole 22 corresponding to the outlet hole 12 on each side near one end of the control shell 11. The inlet hole 22 is provided with a shell connecting hole 23 corresponding to the shell fixing hole 13 at each corner. The connecting bolt 3 is arranged between the shell fixing hole 13 and the shell connecting hole 23. The explosion-proof sealing gasket 32 is arranged between the outlet hole 12 and the inlet hole 22. The epoxy resin pouring part 31 is arranged in the outlet hole 12. The pouring length of the epoxy resin pouring part 31 is greater than or equal to 20 mm. The epoxy resin pouring part 31 has high insulation resistance and electrical strength, which can isolate the live parts inside the electrical equipment from the shell and other non-live parts, prevent electrical faults such as electric shock and short circuit, avoid sparks caused by electrical faults from becoming a fire source to ignite flammable and explosive substances, and ensure the safe operation of the equipment.

[0031] As shown in Figure 10 , the explosion-proof sealing gasket 32 is provided with a sealing gasket hole 33 corresponding to the shell fixing hole 13 at each corner. The explosion-proof sealing gasket 32 is provided with a plurality of wire holes 34 of different sizes on the inner side in the circumferential direction. The outlet hole 12 is connected to the inlet hole 22 through the wire hole 34.

[0032] As shown in Figure 1 , Figure 2 and Figure 3 , the lead-in device 4 includes at least one plug or explosion-proof cable lead-in port 41 arranged at the end of the terminal box 21 away from the control shell 11. The plug or explosion-proof cable lead-in port 41 is connected to the terminal box 21 through the fixing screw 42 at one end. The plug or explosion-proof cable lead-in port 41 is provided with an increased safety terminal 43 on the outer side in the circumferential direction near the terminal box 21. The plug or explosion-proof cable lead-in port 41 is provided with a port sealing gasket 44 between the terminal box 21.

[0033] As shown in Figures 2-6 , the control shell 11 is provided with a control cavity 14 on the inner side. The control shell 11 is provided with a control shell cover 15 on one side, which can close the control cavity 14. The control shell 11 is provided with a plurality of shell cover fixing holes 16 on the outer side in the circumferential direction. The control shell cover 15 is provided with a plurality of shell cover connecting holes 17 corresponding to the shell cover fixing holes 16 on the outer side in the circumferential direction. The shell cover fixing holes 16 and the shell cover connecting holes 17 are provided with a shell cover fixing bolt 18 therebetween.

[0034] The control cavity 14 is provided with at least one molded case circuit breaker 141, several miniature circuit breakers 142 and any one of at least one instrument, and the middle of the control shell cover 15 is provided with a molded case circuit breaker operating switch 151 corresponding to the molded case circuit breaker 141 or a miniature circuit breaker operating switch 152 corresponding to the miniature circuit breaker 142. The operating shell 11 can be freely installed according to the needs of the elements, and the instrument can adopt any one of 48 type instrument, 72 type instrument and 96 type instrument, which improves the practicability.

[0035] Specifically, the control cavity 14 is provided with a shell cover sealing groove 19 on the side close to the control shell cover 15, and the shell cover sealing groove 19 is provided with a shell cover sealing strip 20 in contact with the control shell cover 15. The shell sealing strip 20 can ensure the sealing between the shell 15 and the control shell 11.

[0036] In combination with Figure 2 , Figure 3 , Figures 7-9 As shown, the inside of the junction box 21 is provided with a wiring cavity 24, one side of the wiring cavity 24 is provided with a junction box cover 25 capable of closing the wiring cavity 24, the four corners of the junction box 21 are respectively provided with box cover fixing holes 26, the four corners of the junction box cover 25 are respectively provided with box cover connecting holes 27 corresponding to the box cover fixing holes 26, and the box cover fixing holes 26 and the box cover connecting holes 27 are provided with box cover fixing screws 28.

[0037] Among them, the wiring cavity 24 is provided with several wiring terminals 241, one of the wiring cavities 24 of the junction box 21 is provided with several explosion-proof indicator lights 242, the upper end of the junction box cover 25 is provided with several operating heads 251 corresponding to the explosion-proof indicator lights 242, and the lower end of the junction box cover 25 is provided with a nameplate 252.

[0038] Specifically, the junction box cover 25 is provided with an end cover sealing groove 29 on the side close to the junction box 21, and the end cover sealing groove 29 is provided with an end face sealing strip 30 in contact with the junction box 21. The end face sealing strip 30 can ensure the sealing between the junction box cover 25 and the junction box 21.

[0039] The principle of the embodiment is:

[0040] The control shell 11 and the terminal box 21 are arranged correspondingly, the outgoing line hole 12 of the control shell 11 and the incoming line hole 22 of the terminal box 21 are provided with the explosion-proof sealing gasket 32, and the outgoing line hole 12 is also provided with the epoxy resin pouring part 31, the explosion-proof sealing gasket 32 and the epoxy resin pouring part 31 form a tight sealing layer, which can effectively prevent the external flammable and explosive gas, dust and the like from entering the inside of the equipment, thereby reducing the risk of explosion, the control shell 11 is of an explosion-proof structure, the terminal box 21 is of an increased safety structure, and the lead-in device 4 is arranged below the terminal box 21, the overall structure is compact, each loop can be freely combined according to requirements, and installation, use and maintenance management are more convenient, and the explosion-proof performance is more superior.

[0041] The specific embodiments described herein are merely illustrative of the spirit of the present application. Those skilled in the art to which the present application belongs can make various modifications or supplements to the described specific embodiments or use similar ways to replace, but will not deviate from the spirit of the present application or exceed the scope defined by the appended claims.

[0042] Although the terms such as the shell set 1, the control shell 11, the outgoing line hole 12, the shell fixing hole 13, the control cavity 14, the molded case circuit breaker 141, the small circuit breaker 142, the control shell cover 15, the molded case circuit breaker operating switch 151, the small circuit breaker operating switch 152, the shell cover fixing hole 16, the shell cover connecting hole 17, the shell cover fixing bolt 18, the shell cover sealing groove 19, the shell cover sealing strip 20, the terminal box set 2, the terminal box 21, the incoming line hole 22, the shell connecting hole 23, the terminal cavity 24, the terminal 241, the explosion-proof indicating lamp 242, the terminal box cover 25, the operating head 251, the nameplate 252, the box cover fixing hole 26, the box cover connecting hole 27, the box cover fixing screw 28, the end cover sealing groove 29, the end surface sealing strip 30, the connecting bolt 3, the epoxy resin pouring part 31, the explosion-proof sealing gasket 32, the sealing gasket hole 33, the wire hole 34, the lead-in device 4, the plug or explosion-proof cable lead-in port 41, the fixing screw 42, the increased safety type through hole 43, the port sealing gasket 44 and the like are frequently used herein, but the possibility of using other terms is not excluded. The use of these terms is only for the convenience of describing and explaining the essence of the present application; any kind of additional limitation is contrary to the spirit of the present application.

Claims

1. A design structure of an explosion-proof power distribution device of a housing module integration type, comprising a housing group (1), the lower end of which is provided with a corresponding wiring box group (2), characterized in that, The shell group (1) has a plurality of parallel arrangement operation shell (11), the terminal box group (2) has a plurality of parallel arrangement and operation shell (11) one-to-one corresponding terminal box (21), the operation shell (11) and terminal box (21) between through a plurality of connecting bolt (3) is connected and the operation shell (11) and terminal box (21) between epoxy resin pouring part (31) is equipped, and the terminal box (21) is away from the operation shell (11) one end is equipped with the introduction device (4).

2. The design structure of an explosion-proof power distribution device of claim 1, wherein The operation shell (11) is close to the terminal box (21) one end two sides are equipped with the outgoing line hole (12), the outgoing line hole (12) four corners are equipped with shell fixed hole (13), the terminal box (21) is close to the operation shell (11) one end two sides are equipped with the incoming line hole (22) corresponding with outgoing line hole (12), the incoming line hole (22) four corners are equipped with shell connection hole (23) corresponding with shell fixed hole (13), the connecting bolt (3) is arranged between shell fixed hole (13) and shell connection hole (23), the outgoing line hole (12) and incoming line hole (22) between are equipped with explosion-proof sealing pad (32), and the epoxy resin pouring part (31) is arranged in outgoing line hole (12).

3. The design structure of an explosion-proof power distribution device of claim 2, wherein The explosion-proof sealing pad (32) four corners are equipped with sealing pad hole (33) corresponding with shell fixed hole (13), the explosion-proof sealing pad (32) circumferential inner side is equipped with a plurality of different size threading hole (34), and the outgoing line hole (12) is communicated with incoming line hole (22) through threading hole (34).

4. The design structure of the explosion-proof power distribution device of claim 1 or 2 or 3, wherein, The introduction device (4) includes at least one plug or explosion-proof cable introduction port (41) arranged at the terminal box (21) away from the operation shell (11) one end, one end of the plug or explosion-proof cable introduction port (41) is connected with the terminal box (21) through the fixed screw (42), the plug or explosion-proof cable introduction port (41) is close to the terminal box (21) one end circumferential outer side is equipped with the increased safety type terminal (43), and the plug or explosion-proof cable introduction port (41) and the terminal box (21) between are equipped with port sealing pad (44).

5. The design structure of an explosion-proof power distribution device of claim 1, wherein The operation shell (11) inner side is equipped with operation cavity (14), one side of the operation shell (11) is equipped with operation shell cover (15) capable of closing operation cavity (14), the operation shell (11) circumferential outer side is equipped with a plurality of shell cover fixed hole (16), the operation shell cover (15) circumferential outer side is equipped with a plurality of shell cover connection hole (17) corresponding with shell cover fixed hole (16), and the shell cover fixed hole (16) and shell cover connection hole (17) between are equipped with shell cover fixed bolt (18).

6. The design structure of an explosion-proof power distribution device of claim 5, wherein The control cavity (14) is provided with at least one molded case circuit breaker (141), several miniature circuit breakers (142) and any one of at least one instrument, and the middle of the control shell cover (15) is provided with a molded case circuit breaker operating switch (151) corresponding to the molded case circuit breaker (141) or a miniature circuit breaker operating switch (152) corresponding to the miniature circuit breaker (142).

7. The design structure of an explosion-proof power distribution device of claim 5, wherein The control cavity (14) is provided with a shell cover sealing groove (19) on the side close to the control shell cover (15), and the shell cover sealing groove (19) is provided with a shell cover sealing strip (20) in contact with the control shell cover (15).

8. The design structure of an explosion-proof power distribution device of claim 1, wherein, The inside of the terminal box (21) is provided with a terminal cavity (24), one side of the terminal cavity (24) is provided with a terminal box cover (25) capable of closing the terminal cavity (24), the four corners of the terminal box (21) are respectively provided with box cover fixing holes (26), the four corners of the terminal box cover (25) are respectively provided with box cover connecting holes (27) corresponding to the box cover fixing holes (26), and the box cover fixing holes (26) and the box cover connecting holes (27) are provided with box cover fixing screws (28).

9. The design structure of an explosion-proof power distribution device of claim 8, wherein, The terminal cavity (24) is provided with several terminal terminals (241), and the terminal cavity (24) of one of the terminal boxes (21) is provided with several explosion-proof indicator lights (242), the upper end of the terminal box cover (25) is provided with several operating heads (251) corresponding to the explosion-proof indicator lights (242), and the lower end of the terminal box cover (25) is provided with a nameplate (252).

10. The design structure of an explosion-proof power distribution device of claim 8, wherein, The terminal box cover (25) is provided with an end cover sealing groove (29) on the side close to the terminal box (21), and the end cover sealing groove (29) is provided with an end face sealing strip (30) in contact with the terminal box (21).

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