Comprehensive protection box

Abstract

The utility model relates to the field of power distribution control equipment, in particular to an integrated protection box. The comprehensive protection box provided by the utility model comprises a main circuit assembly, a lightning protection assembly and a connecting assembly which are arranged in a box body, the main circuit assembly comprises a first circuit breaker and a double-cut module which are located at the inlet end of a circuit, and the first circuit breaker is connected with the double-cut module through the connecting assembly. The connecting assembly is provided with at least two connecting sites, and the lightning protection assembly is connected with at least one connecting site.

Description

Technical Field

[0001] The utility model relates to the field of power distribution control equipment, in particular to a comprehensive protection box. Background Art

[0002] The function of the comprehensive protection box is to monitor and control the on-off of the power supply line. Electrical appliances with high requirements for power supply stability often need to be equipped with a backup power supply. When the main power supply circuit can no longer supply power, the backup power supply circuit is switched to supply power to it. To ensure the timeliness of the switching, a double-cut switch needs to be set on the power supply circuit. Both the main power supply circuit and the backup power supply circuit are connected to the electrical appliances through the double-cut switch. When the main power supply circuit can no longer supply power, the double-cut switch automatically switches the backup power supply circuit to power the electrical appliances. The above involves a main circuit component, and a lightning protection component is also provided outside the main circuit component. The lightning protection component needs to be connected to the main circuit component, so it involves the connection between cables. The existing cable connection method adopts a core connection or a connection at the interface of the distribution element. The above two methods involve cables on the main circuit or the distribution elements of the main circuit in actual operation, and therefore affect the main circuit. Utility Model Content

[0003] On the one hand, the utility model provides a comprehensive protection box, which can facilitate the connection of distribution components such as lightning protection components on the main circuit components.

[0004] The utility model provides a comprehensive protection box, including a main circuit component, a lightning protection component and a connection component arranged in the box body, the main circuit component includes a first circuit breaker and a double cut module located at the circuit input end, the first circuit breaker and the double cut module are connected through the connection component, at least two connection sites are provided on the connection component, and the lightning protection component is connected to at least one of the connection sites.

[0005] Furthermore, the connection component is a conductive structure, and two ends of the connection component are respectively connected to the output end of the first circuit breaker and the input end of the double-cut module.

[0006] Furthermore, the connecting component includes a plurality of first copper bars, each of which is provided with connecting holes for screw engagement at both ends, and a first positioning hole for forming the connecting site is provided on the first copper bar, and the input end of the lightning protection component is connected to the first positioning hole corresponding to the first copper bar by welding with a cable.

[0007] Furthermore, a second copper bar is provided in the box body, and at least two second positioning holes are provided on the second copper bar. The output end of the lightning protection component is connected to the second positioning hole by welding through a cable.

[0008] Furthermore, a fixing plate is provided in the box body, and the fixing plate is gap-matched with the inner wall of the box body. The first circuit breaker, the double-cut module and the lightning protection component are all connected to the fixing plate by screws.

[0009] Furthermore, a control module is also provided in the box, and the control module is connected to the fixing plate by screws, and the control module is respectively connected to the first circuit breaker, the double-cut module and the lightning protection component by weak wires.

[0010] Furthermore, the box body has an opening at one end and a back plate arranged opposite to the opening, the fixing plate is connected to the back plate by screws, the fixing plate has a front side facing the opening and a rear side facing the back plate, the control module includes a port structure, the port structure and the low-voltage wires connected to the port structure are located between the rear side and the back plate.

[0011] Furthermore, the box is also provided with a branching module and several second circuit breakers located at the circuit output end. The incoming line end of one group of the several second circuit breakers is connected to the double-cut module through a strong wire, and the incoming line ends of other second circuit breakers are connected to the double-cut module via the branching module.

[0012] Furthermore, a third copper bar is provided in the box, and the neutral line of the outlet end of the double-cut module is connected to the third copper bar.

[0013] Furthermore, a mutual inductor is installed on the high-voltage wires between the plurality of second circuit breakers and the double-cut modules.

[0014] Beneficial Effects

[0015] In this solution, a connecting component is provided between the first circuit breaker and the double-cut module of the main circuit component, and the connecting component is located between the output end of the first circuit breaker and the input end of the double-cut module. When the lightning protection component is installed, the input end of the lightning protection component is fixedly connected to one or several connection points on the connecting component through a cable. Compared with the traditional solution in which the lightning protection component is connected to the main circuit component by a core connection or at the interface of the distribution element, this solution does not require the articulation of the core of the cable between the output end of the first circuit breaker and the double-cut module or the wiring operation at the interface of the first circuit breaker. Therefore, when the lightning protection component is installed, the main circuit component can remain connected, and only the first circuit breaker needs to be disconnected, thereby avoiding the installation of the lightning protection component affecting the assembled main circuit component. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions of the utility model or the prior art, the drawings required for use in the embodiments or the prior art description are briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model, and for ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0017] Figure 1 It is a schematic diagram of the overall structure of the comprehensive protection box provided by the embodiment of the utility model;

[0018] Figure 2 It is a structural schematic diagram of the main circuit assembly provided by an embodiment of the utility model;

[0019] Figure 3 It is a schematic structural diagram of the first copper busbar provided in an embodiment of the utility model.

[0020] Figure numbers: 1-box; 2-main circuit assembly; 3-connection assembly; 4-lightning protection assembly; 5-second copper bar; 6-third copper bar; 7-fixing plate; 8-control module; 9-first circuit breaker; 10-first copper bar; 11-mutual inductor; 12-second circuit breaker; 13-double-cut module; 14-cable; 15-connection hole; 16-first positioning hole. DETAILED DESCRIPTION

[0021] The specific implementation of the present invention is described in detail below in conjunction with the accompanying drawings. It should be understood that the specific implementation described here is only used to illustrate and explain the present invention, and is not used to limit the present invention.

[0022] Example

[0023] like Figures 1 to 3 A comprehensive protection box shown in the figure includes a main circuit component 2, a lightning protection component 4 and a connecting component 3 arranged in a box body 1. The main circuit component 2 includes a first circuit breaker 9 and a double cut module 13 located at the circuit input end. The first circuit breaker 9 is connected to the double cut module 13 through the connecting component 3. At least two connection points are provided on the connecting component 3. The lightning protection component 4 is connected to at least one connection point.

[0024] In order to facilitate the connection of the lightning protection component 4 to the main circuit component 2, a connecting component 3 is provided between the first circuit breaker 9 and the double-cut module 13 of the main circuit component 2 in this scheme. The connecting component 3 is located between the output end of the first circuit breaker 9 and the input end of the double-cut module 13. When installing the lightning protection component 4, the input end of the lightning protection component 4 is fixedly connected to one or several connection points on the connecting component 3 through a cable 14. Compared with the traditional scheme in which the lightning protection component 4 is connected to the main circuit component 2 by a core connection or at the interface of the distribution element, this scheme does not require the articulation of the core of the cable 14 between the output end of the first circuit breaker 9 and the double-cut module 13 or the wiring operation at the interface of the first circuit breaker 9. Therefore, when installing the lightning protection component 4, the main circuit component 2 can remain connected, and only the first circuit breaker 9 needs to be disconnected, thereby avoiding the installation of the lightning protection component 4 from affecting the assembled main circuit component 2.

[0025] In an optional implementation, the connection component 3 is a conductive structure, and two ends of the connection component 3 are respectively connected to the output end of the first circuit breaker 9 and the input end of the double cut module 13 .

[0026] The connecting component 3 is made of conductive material. The connecting component 3 replaces the cable 14 between the output end of the first circuit breaker 9 and the input end of the double cut module 13 in the traditional solution. One end of the connecting component 3 is fixed to the output end of the first circuit breaker 9 by screws, and the other end is fixed to the input end of the double cut module 13 by screws.

[0027] When other power distribution components are added to the comprehensive protection box and need to be connected between the first circuit breaker 9 and the double-cut module 13 , the cables 14 of the power distribution components can be fixedly connected to other connection points on the connection component 3 .

[0028] In an optional embodiment, the connection component 3 includes a plurality of first copper bars 10, each of which is provided with connection holes 15 for screw engagement at both ends, and a first positioning hole 16 for forming a connection site is provided on the first copper bar 10, and the input end of the lightning protection component 4 is welded to the first positioning hole 16 corresponding to the first copper bar 10 through a cable 14.

[0029] The main power supply circuit includes three live wires and one neutral wire, so the main power supply circuit corresponds to four first copper bars 10. The specifications of the backup power supply circuit are consistent with the main power supply circuit, so there are at least eight first copper bars 10 between the first circuit breaker 9 and the switching component. One end of each first copper bar 10 is fixed to the corresponding output end of the first circuit breaker 9 by screws, and the other end is fixed to the corresponding input end of the double-cut module 13 by screws. A plurality of first positioning holes 16 are provided on each first copper bar 10 near the first circuit breaker 9. The first positioning holes 16 are used to fix the position of the cable 14 and facilitate solder attachment. The end wire core of the cable 14 at the input end of the lightning protection component 4 passes through the first positioning hole 16 and is then fixed by soldering.

[0030] Preferably, a baffle is provided in the box body 1 at the position corresponding to the first copper bar 10, and the baffle is detachably arranged on the opening side of the first copper bar 10 facing the box body 1 by screws or snaps, so that after the box body 1 is opened, the baffle is separated from the operator and the first copper bar 10 to prevent the operator from accidentally touching the exposed first copper bar 10.

[0031] In an optional embodiment, a second copper bar 5 is further provided in the box body 1 , and at least two second positioning holes are provided on the second copper bar 5 . The output end of the lightning protection component 4 is connected to the second positioning hole by welding through a cable 14 .

[0032] Each first copper bar 10 corresponds to one lightning protection component 4, that is, there are at least eight lightning protection components 4 in this solution. The eight lightning protection components 4 are grouped into four groups to form two groups of surge protectors. The output end of each group of surge protectors is connected to the second copper bar 5 through a cable 14. The second positioning hole on the second copper bar 5 is used to fix the position of the cable 14 and the grounding wire at the output end of the surge protector and to facilitate solder attachment. The terminal core of the cable 14 at the input end of the lightning protection component 4 passes through the second positioning hole and is then fixed by soldering. The above steps can be completed when the comprehensive protection box is assembled. The grounding wire can be connected after the comprehensive protection box is installed at the application site. The terminal core of the cable 14 of the grounding wire passes through the second positioning hole and is then fixed by soldering.

[0033] Preferably, the four lightning protection components 4 in a group of surge protectors in the present solution are connected through a short-circuit on the output end side, so only one cable 14 at the output end of one of the lightning protection components 4 needs to be connected to a second positioning hole on the second copper bus 5. The second copper bus 5 in the present solution is provided with three second positioning holes, two of which correspond to two groups of surge protectors, and one corresponds to the grounding wire.

[0034] In an optional embodiment, a fixing plate 7 is further provided in the box body 1, and the fixing plate 7 is gap-matched with the inner wall of the box body 1, and the first circuit breaker 9, the double-cut module 13 and the lightning protection component 4 are all connected to the fixing plate 7 by screws.

[0035] The fixing plate 7 is located inside the box body 1 and is fixedly connected to the box body 1 by screws. There is a gap between the fixing plate 7 and the inner wall of the box body 1. The first circuit breaker 9, the double-cut module 13 and the lightning protection component 4 are fixed to the side of the fixing plate 7 facing the opening of the box body 1 by screws, thereby preventing the external water mist from condensing on the inner wall of the box body 1 and flowing to the various distribution components in the box body 1 to affect them, and facilitating the operator to operate the various distribution components through the opening of the box body 1.

[0036] In an optional embodiment, a control module 8 is further provided in the box 1, and the control module 8 is connected to the fixing plate 7 by screws. The control module 8 is respectively connected to the first circuit breaker 9, the double cut module 13 and the lightning protection component 4 by weak wires.

[0037] The control module 8 is used to obtain the action trigger signal of the first circuit breaker 9, the double cut module 13 and the lightning protection component 4, and upload the signal to the host computer after processing. The cable 14 in the box 1 in this scheme includes a strong wire and a weak wire. The first circuit breaker 9, the double cut module 13 and the lightning protection component 4 are connected by a strong wire to form a power supply line and a lightning protection line. The control module 8 is connected to the signal output end of the first circuit breaker 9, the double cut module 13 and the lightning protection component 4 through a weak wire for signal transmission.

[0038] In an optional embodiment, the box body 1 has an opening at one end and a back panel arranged opposite to the opening, the fixing plate 7 is connected to the back panel by screws, the fixing plate 7 has a front side facing the opening and a rear side facing the back panel, the control module 8 includes a port structure, the port structure and the low-voltage wires connected to the port structure are located between the rear side and the back panel.

[0039] The box body 1 has a cavity with an opening at one end formed by enclosing plates. The fixed plate 7, the first circuit breaker 9, the double-cut module 13 and the lightning protection component 4 are located in the cavity. There is a gap between the fixed plate 7 and the inner wall surface of the back plate, so the fixed plate 7 divides the cavity into a part close to the opening and a part close to the back plate. The strong electric wires in this scheme are arranged on the front side of the fixed plate 7 facing the opening by means of snaps, etc., and the weak electric wires are arranged on the rear side of the fixed plate 7 facing the back plate by means of snaps, etc., thereby realizing the separation of strong electricity and weak electricity.

[0040] The control module 8 includes a shell, multiple circuit boards and a port structure fixedly connected to one of the circuit boards. The circuit board is fixed to the front side of the fixed plate 7 with the shell by screws or the like. The circuit board connected to the port structure corresponds to the opening structure on the fixed plate 7, so that the port structure extends from the rear side of the fixed plate 7 to facilitate the connection of the weak wire thereto. The fixed plate 7 is provided with an opening structure at the signal output end near the first circuit breaker 9, the double-cut module 13 and the lightning protection component 4. After the weak wire is connected to the signal output end, it passes through the opening structure to the rear side of the fixed plate 7 and is then connected to the port structure.

[0041] In an optional embodiment, a branching module and several second circuit breakers 12 located at the circuit output end are also provided in the box 1, and the incoming end of one group of the several second circuit breakers 12 is connected to the double-cut module 13 through a strong wire, and the incoming end of other second circuit breakers 12 is connected to the double-cut module 13 via the branching module.

[0042] The first circuit breaker 9 is used to control the power supply line in the integrated protection box, corresponding to the main power supply circuit and the backup power supply circuit respectively. The two first circuit breakers 9 independently realize the on and off of the corresponding power supply lines. The power supply current enters the double-cut module 13 after passing through the first circuit breaker 9, forming a power supply line that realizes the power supply stability effect, and then passes through multiple second circuit breakers 12 to realize the on and off control of the power supply of a single electrical appliance.

[0043] Specifically, the output end of the double-cut fastener is connected to the input end of a group of second circuit breakers 12 through a strong power line. The power supply circuit in this scheme includes three live wires and one neutral wire. Therefore, a group of second circuit breakers 12 includes three-way circuit breakers, which perform separate on-off control on the three live wires respectively. If multiple electrical appliances need to be controlled, the input ends of multiple groups of second circuit breakers 12 are short-circuited through the branching module.

[0044] In an optional implementation, a third copper busbar 6 is further provided in the box body 1 , and the neutral line of the outlet end of the double-cut module 13 is connected to the third copper busbar 6 .

[0045] The third copper busbar 6 in this solution is provided with a plurality of third positioning holes, one of which is connected to the neutral wire of the output terminal of the double-cut module 13, and the specific connection method is consistent with that of the second copper busbar 5, and the other third positioning holes are respectively connected to the neutral wires of the corresponding electrical appliances, and each neutral wire cooperates with a group of three live wires.

[0046] In an optional implementation, a transformer 11 is installed on the power line between the second circuit breakers 12 and the double cut modules 13 .

[0047] The mutual inductor 11 and the voltage collection device are used to monitor the electrical signals of the main power supply circuit and the backup power supply circuit. Specifically, the mutual inductor 11 is mounted on the strong wires between the second circuit breakers 12 and the double-cut modules 13. The mutual inductor 11 in this solution is electrically connected to the control module 8 through weak wires to realize data communication.

[0048] It should be noted that any of the above embodiments is illustrative of the utility model rather than limiting the utility model, and that those skilled in the art may design alternative embodiments without departing from the scope of the appended claims. In the claims, any reference symbol between brackets should not be constructed as a limitation to the claims. The word "comprising" does not exclude the presence of elements or steps not listed in the claims. The word "one" or "an" preceding an element does not exclude the presence of multiple such elements. The utility model can be implemented by means of hardware including several different elements and by means of appropriately programmed computers. In a unit claim that lists several devices, several of these devices may be embodied by the same hardware item. The use of the words first, second, previous, and next, etc. does not indicate any order. These words may be interpreted as names.

[0049] The above implementation modes are only suitable for illustrating the present invention, but not for limiting the present invention. Ordinary technicians in the relevant technical field can make various changes and modifications without departing from the spirit and scope of the present invention. Therefore, all equivalent technical solutions also belong to the scope of the present invention. The scope of patent protection of the present invention should be limited by the claims.

Claims

1. A comprehensive insurance box, characterized in that: The invention comprises a main circuit component (2), a lightning protection component (4) and a connection component (3) arranged in a box (1); the main circuit component (2) comprises a first circuit breaker (9) and a double cut module (13) located at the circuit input end; the first circuit breaker (9) and the double cut module (13) are connected via the connection component (3); at least two connection points are provided on the connection component (3); and the lightning protection component (4) is connected to at least one of the connection points.

2. The comprehensive protection box according to claim 1, characterized in that: The connection component (3) is a conductive structure, and the two ends of the connection component (3) are respectively connected to the output end of the first circuit breaker (9) and the input end of the double-cut module (13).

3. The comprehensive protection box according to claim 2, characterized in that: The connection component (3) comprises a plurality of first copper bars (10), each of which is provided with connection holes (15) for screw engagement at both ends, and a first positioning hole (16) for forming the connection point is provided on the first copper bar (10), and the input end of the lightning protection component (4) is connected to the first positioning hole (16) corresponding to the first copper bar (10) by welding through a cable (14).

4. The comprehensive protection box according to claim 3, characterized in that: A second copper bar (5) is also provided in the box body (1), and at least two second positioning holes are provided on the second copper bar (5). The output end of the lightning protection component (4) is connected to the second positioning hole by welding via a cable (14).

5. The comprehensive protection box according to claim 1, characterized in that: A fixing plate (7) is also provided in the box body (1), and the fixing plate (7) is gap-matched with the inner wall of the box body (1); the first circuit breaker (9), the double-cut module (13) and the lightning protection component (4) are all connected to the fixing plate (7) by screws.

6. The comprehensive protection box according to claim 5, characterized in that: A control module (8) is also provided in the box (1), and the control module (8) is connected to the fixing plate (7) via screws. The control module (8) is respectively connected to the first circuit breaker (9), the double-cut module (13) and the lightning protection component (4) via weak wires.

7. The comprehensive protection box according to claim 6, characterized in that: The box body (1) has an opening at one end and a back plate arranged opposite to the opening, the fixing plate (7) is connected to the back plate by screws, the fixing plate (7) has a front side facing the opening and a rear side facing the back plate, the control module (8) includes a port structure, the port structure and the weak wire connected to the port structure are located between the rear side and the back plate.

8. The comprehensive protection box according to claim 1, characterized in that: The box (1) is also provided with a branching module and a plurality of second circuit breakers (12) located at the circuit output end; the incoming line end of one group of the plurality of second circuit breakers (12) is connected to the double-cut module (13) via a strong wire, and the incoming line ends of the other second circuit breakers (12) are connected to the double-cut module (13) via the branching module.

9. The comprehensive protection box according to claim 8, characterized in that: A third copper bar (6) is also provided in the box body (1), and the neutral line at the outlet end of the double-cut module (13) is connected to the third copper bar (6).

10. The comprehensive protection box according to claim 8, characterized in that: A mutual inductor (11) is installed on the strong electric line between the plurality of second circuit breakers (12) and the double-cut module (13).

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