CN116565656A - Secondary equipment transfer box based on original screen and transformation method - Google Patents

Abstract

The invention relates to a secondary equipment transfer box based on an original screen, which comprises a transfer frame; the switching modules comprise two switches, each switch comprises a pin surface and a wiring surface, the two switches on the same switching module are electrically connected through the wiring surfaces which are oppositely arranged, and the pin surfaces of the two switches on the same switching module are respectively used for being electrically connected with the first electric connector and the second electric connector; the first electric connector is an electric connector of new secondary equipment, and the second electric connector is an electric connector connected with old secondary equipment. The invention greatly relieves the problems of overlong power failure time, high labor cost and material cost and high operation risk in the conventional secondary equipment reconstruction.

Description

Secondary equipment transfer box based on original screen and transformation method

Technical Field

The invention relates to the technical field of electrical equipment, in particular to a secondary equipment transfer box based on an original screen and a transformation method.

Background

The power system includes a primary device and a secondary device. Primary devices refer to high voltage electrical devices, including generators, transformers, etc., that are used directly for production, transport, and distribution, but are capable. The secondary equipment is low-voltage electrical equipment required for monitoring, controlling, regulating and protecting the operation of the primary equipment and providing operation working conditions or production command signals for operation and maintenance personnel. Such as relays, fuses, etc. After the secondary equipment is used for a certain period of time, the problems of serious ageing and poor reliability exist, and the safe operation of the power grid is seriously influenced. Therefore, after the secondary equipment has been used for a certain period of time, it needs to be modified.

In the traditional technology, the secondary equipment is transformed by adopting a method for completely replacing secondary equipment, a screen cabinet, an external cable and the like. The method can result in longer outage times (about 8 to 12 days) of equipment in the power system, which can directly affect power delivery, thereby causing property loss. In addition, the transformation method involves more equipment, needs participation of an external construction party, and has higher labor cost and material resource cost, and involves an external loop during transformation, so that the operation risk is higher.

Based on the traditional technology, the current improvement scheme is a modification method for replacing only secondary devices without replacing a screen cabinet, and the method needs to carry out wiring between an original screen and new secondary equipment on site.

However, the above improvement scheme shortens the power outage time (about 6 to 8 days) to a certain extent and reduces the construction amount, but the problems of overlong power outage time, high labor cost and material cost and high operation risk still exist.

Disclosure of Invention

Based on the problems of overlong power failure time, high labor cost, high material resource cost and high operation risk existing in the conventional secondary equipment transformation, the secondary equipment transfer box based on the original screen is necessary to be provided.

A secondary device transfer box based on an original screen, comprising:

a transfer frame; the switching modules comprise two switches, each switch comprises a pin surface and a wiring surface, the two switches on the same switching module are electrically connected through the wiring surfaces which are oppositely arranged, and the pin surfaces of the two switches on the same switching module are respectively used for being electrically connected with the first electric connector and the second electric connector; the first electric connector is an electric connector of new secondary equipment, and the second electric connector is an electric connector connected with old secondary equipment.

In one embodiment, the adapter module includes a support spacer for carrying and maintaining two adapters on the same adapter module in the same plane.

In one embodiment, the adapter frame is provided with a plurality of clamping grooves in sliding fit with the supporting partition board, and the clamping grooves are used for providing installation and positioning of the adapter module corresponding to the supporting partition board.

In one embodiment, the adapter rack comprises:

a rectangular frame formed by connecting four side plates end to end and provided with a hollow part, wherein the hollow part is used for accommodating the switching module; and the cover plate is used for closing the hollow part, and is provided with a yielding hole for electrically connecting the pin surface with the first electric connector or the second electric connector.

In one embodiment, a cross bar with ends respectively connected with the corresponding side plates is arranged in the rectangular frame.

In one embodiment, the cover plate comprises a plurality of plate body units corresponding to the switching modules one by one, and adjacent plate body units are closely attached to each other along with the array arrangement of the corresponding switching modules.

In one embodiment, a mounting bracket is provided on a side of the adapter bracket, which is close to the second electrical connector, in a protruding manner, so as to fix the adapter bracket to the original screen.

In one embodiment, the patching modules are grouped into multiple types, with different types of patching modules corresponding to different switches.

In one embodiment, the types of patching modules include on/off and current/voltage; when the switching module is a current/voltage switching module, the wiring surfaces of the two switches corresponding to the current/voltage switching module are connected in a double-compression mode.

The method for reforming the secondary equipment based on the original screen comprises the following steps of:

the switching box for completing wiring is prepared in advance before power failure; the transfer box is used for wiring between wiring surfaces of two adapters on the same transfer module aiming at different transfer modules;

and removing the old secondary equipment after power failure, and electrically connecting the two pin surfaces of each transfer module of the transfer box with the corresponding first electric connector and the corresponding second electric connector respectively in a wiring mode.

Above-mentioned secondary equipment transfer box based on former screen, including the transfer module and be used for bearing the transfer frame of transfer module, the transfer module includes two adapters, electric connection between two wiring faces that two adapters set up relatively, and the stitch face of each respectively of two adapters is connected with first electric connector and second electric connector respectively, realizes changing secondary equipment on former screen basis. At present, the transformation method of the secondary equipment is that the secondary equipment, the screen cabinet, the external cables and the like are replaced completely or the secondary equipment is replaced under the condition of retaining the screen cabinet, but field wiring is needed between the secondary equipment and the screen cabinet, so that the two transformation methods have the problems of long power failure time, high cost and high operation risk. According to the novel power-off control method, on one hand, the novel secondary equipment is connected into the wiring position of the old secondary equipment and the screen cabinet through the transfer box, so that the screen cabinet does not need to be replaced, the secondary equipment can be replaced on the basis of the original screen, the power-off time is shortened, and meanwhile, the cost and the risk are reduced. On the other hand, the electric connection between the two wiring surfaces is realized by the wiring of the wiring surfaces according to the functional wiring, the two pin surfaces are correspondingly connected with the first electric connector and the second electric connector, the corresponding electric connection between the first electric connector and the second electric connector is realized, and then the installation of new secondary equipment on the original screen is realized. Because wiring between the wiring surfaces can be completed before power failure, the power failure time is greatly reduced. In addition, because the transfer box is connected with the first electric connector and the second electric connector through the pin surface, the transfer box can be quickly plugged and unplugged with the first electric connector and the second electric connector, the transfer efficiency is improved, the power failure time is further reduced, and the cost and the risk of on-site wiring are reduced.

Drawings

FIG. 1 is an overall schematic diagram of an original screen-based secondary device pod in an embodiment;

FIG. 2 is a front view of an original screen-based secondary device pod in an embodiment;

FIG. 3 is a cross-sectional view taken along line A-A of FIG. 2;

FIG. 4 is a schematic diagram of a current/voltage type switching module corresponding to an adapter according to an embodiment;

FIG. 5 is a schematic diagram of a second embodiment of a current/voltage type switching module corresponding to an adapter;

FIG. 6 is a schematic diagram of a configuration of an adaptor corresponding to an I/O type adaptor module according to an embodiment;

FIG. 7 is a schematic diagram of a second embodiment of an I/O adapter module corresponding to an adapter;

FIG. 8 is an overall schematic diagram of an original screen-based secondary device pod in an embodiment;

FIG. 9 is a diagram of a method for retrofitting a secondary device based on an original screen in an embodiment.

In the figure, 1, a transfer frame; 101. a side plate; 102. a cover plate; 103. a double-crimped copper nose; 104. a cross bar; 105. a mounting bracket; 106. a rear cover; 107. wiring grooves; 2. a transfer module; 201. an adapter; 202. needle foot surface; 203. a wiring surface; 204. a supporting partition; p1, a abdicating hole; p2, perforation.

Detailed Description

In order that the above objects, features and advantages of the invention will be readily understood, a more particular description of the invention will be rendered by reference to the appended drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. The present invention may be embodied in many other forms than described herein and similarly modified by those skilled in the art without departing from the spirit of the invention, whereby the invention is not limited to the specific embodiments disclosed below.

In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the device or element being referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present invention.

Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In the description of the present invention, the meaning of "plurality" means at least two, for example, two, three, etc., unless specifically defined otherwise.

In the present invention, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly, through intermediaries, or both, may be in communication with each other or in interaction with each other, unless expressly defined otherwise. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art according to the specific circumstances.

In the present invention, unless expressly stated or limited otherwise, a first feature "up" or "down" a second feature may be the first and second features in direct contact, or the first and second features in indirect contact via an intervening medium. Moreover, a first feature being "above," "over" and "on" a second feature may be a first feature being directly above or obliquely above the second feature, or simply indicating that the first feature is level higher than the second feature. The first feature being "under", "below" and "beneath" the second feature may be the first feature being directly under or obliquely below the second feature, or simply indicating that the first feature is less level than the second feature.

It will be understood that when an element is referred to as being "fixed" or "disposed" on another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and the like are used herein for illustrative purposes only and are not meant to be the only embodiment.

Referring to fig. 1, fig. 1 is an overall schematic diagram of a primary-screen-based secondary device switching box according to an embodiment of the present invention, and the primary-screen-based secondary device switching box according to an embodiment of the present invention includes a switching frame 1. The adapter bracket 1 comprises a rectangular frame with a hollow part and a cover plate 102 for closing the hollow part, wherein the rectangular frame is formed by connecting four side plates 101 end to end, and the side plates 101 and the cover plate 102 form an external box body structure of the adapter box. The adaptor rack 1 is provided with a mounting bracket 105 in a protruding manner for fixing the adaptor rack 1 to Yu Yuanbing.

The original screen is a screen cabinet connected with the old secondary equipment, and the old secondary equipment is removed and the new secondary equipment is replaced on the basis of the original screen.

In one embodiment, as depicted in FIG. 1, four side panels 101 serve as the upper and lower walls and the left and right walls, respectively, of the pod construction. The cover plate 102 is provided with two cover plates respectively positioned at the front and rear positions of the transfer box. The mounting bracket 105 extends and protrudes along the left side wall and the right side wall, a plurality of screw holes are formed in the mounting bracket 105 and are matched with the screw holes in the original screen, the mounting bracket 105 is connected with the original screen through bolts, and the adapter box is fixed on the original screen.

Through the box structure protection transfer box inner structure of transfer box, keep the relative position between transfer frame 1 and the former screen through installing support 105, avoid because the transfer box shifts and lead to secondary equipment to connect and drop.

In one embodiment, the pod is designed as a 4U enclosure structure.

As shown in fig. 2 and 3, a front view and a cross-sectional view of a transfer box in an embodiment of the present invention are shown, respectively. The secondary equipment transfer box based on the original screen further comprises a plurality of transfer modules 2 arranged on the transfer frame 1. The switching module 2 comprises two switches 201, the switches 201 comprise pin surfaces 202 and wiring surfaces 203, the two switches 201 on the same switching module 2 are electrically connected through the oppositely arranged wiring surfaces 203, and pin surfaces 202 of the two switches 201 on the same switching module 2 are respectively used for being electrically connected with a first electric connector and a second electric connector; the first electric connector is an electric connector of new secondary equipment, and the second electric connector is an electric connector connected with old secondary equipment.

The original screen is provided with a terminal strip, the terminal strip adopts an external loop wiring mode, and old secondary equipment is connected to the terminal strip. After the old equipment is removed, the terminal strip is a second electrical connector that can be connected to pin face 202.

In this embodiment, the plurality of adapter modules 2 are fixed in parallel in the hollow portion of the rectangular frame formed by the side plates 101, and the hollow portion is closed by the cover plate 102, so that the interior of the box structure of the adapter box is protected by the box, and impurities such as dust can be effectively blocked, and meanwhile, the safety of personnel is ensured. The same patching module 2 includes two types of patching devices 201. For example, both adapters 201 of the same adapter module 2 are 14-core adapters 201. The adaptor 201 in this embodiment is a standard adaptor 201, so that different manufacturers can unify standards, and the adaptability of the adaptor 201 is improved.

Each adapter 201 has a pin face 202 and a wire face 203. The pin face 202 has a plurality of pins, which may be referred to as male pins, that mate with female pins on the first electrical connector or the second electrical connector. The pins on the pin face 202 are made of copper alloy, and gold plating is performed on the surface to reduce the contact resistance of the whole electrical circuit. The connection surface 203 is directly connected with the cable and is electrically connected with the other connection surface 203 through the cable. The connection mode of the connection surface 203 and the cable can be selected according to the actual requirement. For example, wiring is done in different ways for different electrical connection reliability requirements.

According to the embodiment, the new secondary equipment is connected into the wiring position of the old secondary equipment and the screen cabinet through the transfer box, so that the screen cabinet does not need to be replaced, the secondary equipment can be replaced on the basis of the original screen, the power failure time is shortened, and meanwhile, the cost and the risk are reduced. The electrical connection between the two wiring surfaces 203 is according to the functional wiring, so that the two pin surfaces 202 are correspondingly connected through the wiring of the wiring surfaces 203, the pin surfaces 202 are electrically connected with the first electrical connector and the second electrical connector, the corresponding electrical connection between the first electrical connector and the second electrical connector is realized, and then the installation of new secondary equipment on the original screen is realized. Since wiring between the wiring surfaces 203 can be completed before a power outage, the power outage time is greatly reduced. In addition, as the transfer box is connected with the first electric connector and the second electric connector through the pin surface 202, the transfer box can be matched with the first electric connector and the second electric connector in a quick plugging and unplugging manner, the transfer efficiency is improved, the power failure time is further reduced, and the cost and the risk of on-site wiring are reduced.

In one embodiment, the patching modules 2 are grouped into multiple types, with different types of patching modules 2 corresponding to different adapters 201.

For example, if there is a power type in the type of the patching module 2, the adapter 201 corresponding to the patching module 2 should also be the adapter 201 corresponding to the power.

In one embodiment, as shown in fig. 4 to 6, the types of patching modules 2 include on/off and current/voltage; when the switching module 2 is a current/voltage type switching module 2, the connection surfaces 203 of the two switches 201 corresponding to the current/voltage type switching module 2 are connected in a double-crimp mode.

In this embodiment, as shown in fig. 4 and 5, the corresponding adapter 201 of the current/voltage type adapter module 2 is a 14-core adapter 201, and the 14-core adapter 201 is a standard adapter, which can be applied to a conventional 14-core female connector in the market. The 14 pins of the pin surface 202 of the 14-core adapter 201 are made of copper alloy with gold plated surfaces, so that the contact resistance of the whole electric circuit is reduced. The wiring surface 203 of the 14-core adapter 201 is a 14-hole wiring terminal, and the wiring terminal is designed in a double-compression mode, so that the stability and reliability of the connecting cable are ensured. The double-crimping mode is that the copper nose 103 with double crimping is adopted, one end of the copper nose can be pressed on the cable skin, and the other end of the copper nose is fixed on the cable core by adopting double screws. The reliable electrical connection of copper nose and cable can be guaranteed to two pressure mouthfuls, plays dual protection, avoids the phenomenon that later stage becomes flexible and drops. The design ensures that the adapter 201 can work stably and normally under the direct current voltage of 110V or 220V, the contact resistance can be smaller than 5mΩ after reliable connection, the contact part between the adapter 201 and the electric connector can bear 10A current, the insulation between the metal part of the adapter 201 and the plastic shell can be not smaller than 1000mΩ under the direct current voltage of 500V under normal temperature and normal state, and can bear 10 surge voltages of 6000V.

In this embodiment, as shown in fig. 6 and 7, the corresponding adapter 201 of the in/out adapter module 2 is a 30-core adapter 201, and the 30-core adapter 201 is a standard adapter 201, which can be applied to a conventional 30-core female connector in the market. In order to realize stable and normal operation of the adapter 201 under 110V or 220V voltage, the contact resistance is smaller than 5mΩ after reliable connection, the contact part between the adapter 201 and the electric connector can bear 10A current, and the insulation between the metal part of the adapter 201 and the plastic shell can be not smaller than 1000mΩ under 500V direct current voltage under normal temperature and normal state, and can bear 6000V requirements of 10 surges and the like. Therefore, the pins on the pin surface 202 of the 30-core adapter 201 are all made of copper alloy and are plated with gold on the surface, the wiring surface 203 of the adapter 201 is a 30-hole wiring terminal, and the wiring holes can be connected with a cable core with a wire diameter of 2.5 square millimeters and are reliably fixed through inherent screws on the adapter 201. The adapters 201 at two ends of the switching module 2 are symmetrically arranged, the connection surfaces 203 of the adapters 201 at two sides can be electrically connected through cables, and the connection mode can be flexible and changeable.

In one embodiment, as shown in fig. 3, the patching module 2 includes a support bulkhead 204 for carrying two adapters 201 on the same patching module 2 and holding the two adapters 201 on the same plane.

In this embodiment, two adapters 201 are respectively fixed to both ends of the same plate surface of the support partition 204. Screw holes are formed in the adapter 201, adapting screw holes are also formed in the supporting partition 204, and the adapter 201 is fixed on the supporting partition 204 through bolts.

The two adapters 201 are defined on the same plane by the support spacer 204, facilitating wiring of the opposite wiring surfaces 203 of the two adapters 201. The adapters 201 are fixed on the supporting partition 204, so that the relative position between the two adapters 201 is ensured to be fixed, and the cable between the wiring surfaces 203 is prevented from falling off due to relative displacement, so that the reliability of electrical connection between the two adapters 201 is improved.

In one embodiment, the support spacer 204 is an insulating resin material that ensures both the independence of the circuit and the mechanical strength of the support spacer 204.

In one embodiment, as shown in fig. 3, a through hole P2 is left in the middle of the supporting partition 204, and the hollow design of the supporting partition 204 can facilitate the arrangement of the connection cables between the two end adapters 201, and also greatly facilitate the maintenance work such as fastening screws in the future.

In one embodiment, as shown in fig. 3, a rectangular frame formed by the side plates 101 is provided with cross bars 104 whose ends are respectively connected to the corresponding side plates 101.

The cross bars 104 are provided with a plurality of cross bars and are distributed on the upper inner side wall and the lower inner side wall of the box body structure of the transfer box in a dispersing manner, and two ends of the cross bars 104 are respectively abutted with the left side wall and the right side wall of the box body structure of the transfer box, so that the integral mechanical structural strength of the transfer box is ensured. The number of the cross bars 104 is freely set according to the size of the box body of the transfer box, for example, the number is set to be 4.

In one embodiment, the adaptor rack 1 is provided with a plurality of clamping grooves in sliding fit with the supporting partition 204, so as to provide installation and positioning of the adaptor module 2 corresponding to the supporting partition 204.

The support partition 204 of a single transfer module 2 is vertically arranged, a plurality of transfer modules 2 are transversely arranged in parallel, and the vertically arranged support partition 204 slides into the corresponding installation position of the transfer module 2 from the front of the transfer box through the clamping groove, so that quick and accurate positioning of the installation of the transfer module 2 is realized. The clamping groove is fixed on the cross bar 104, and meanwhile, the extending direction of the clamping groove is perpendicular to the length direction of the cross bar 104. To maintain the stability of the card slot, at least 2 cross bars 104 supporting the card slot should be provided, each card slot bridging multiple cross bars 104 in the same plane. The number of the clamping grooves is consistent with that of the switching modules 2, and the clamping grooves are in one-to-one correspondence. In other embodiments, the number of the clamping grooves can be twice the number of the switching modules 2, the clamping grooves are formed in the top and the bottom of the switching modules 2, the upper clamping grooves and the lower clamping grooves are arranged symmetrically in pairs, the supporting templates are enabled to be in sliding fit with the corresponding clamping grooves at the two ends at the same time, the sliding process is stable, the installation efficiency is improved, and meanwhile convenience is provided for maintenance of the switching modules 2. In other embodiments, the number and location of the card slots are designed to be adjustable according to field conditions.

In one embodiment, to enable the adapter module 2 to be firmly mounted on the adapter frame 1, a wire hole corresponding to the adapter 201 is designed on the cross bar 104, and the design of the wire hole always matches with the position of the corresponding adapter 201. After the transfer module 2 is inserted into the transfer box body through the clamping groove, bolts penetrate through holes in the adapter 201 to be fastened with screw holes arranged on the corresponding cross rod 104, so that the fixed installation of the transfer module 2 is completed.

In one embodiment, as shown in fig. 2, the cover 102 is provided with a relief hole P1 for electrically connecting the pin surface 202 (shown in fig. 3) with the first electrical connector or the second electrical connector.

The abdication holes P1 are adapted to the distribution range of the pins on the pin surface 202, so that the pin surface 202 can be fully connected with the first electrical connector or the second electrical connector through the abdication holes P1.

In one embodiment, to ensure that the first and second electrical connectors are reliably connected to the pin face 202, threaded holes are designed in the adapter box that are secured to the first and second electrical connectors to ensure reliability of the overall electrical circuit.

In one embodiment, as shown in fig. 2, the cover plate 102 includes a plurality of plate units corresponding to the adapting modules 2 one by one, and adjacent plate units are closely attached to each other along with the array arrangement of the corresponding adapting modules 2.

The cover plate 102 can reduce the entry of impurities such as dust into the transfer box, reduce the exposed degree of the circuit and reduce the safety risk. The plate body unit is connected with the side plate 101 through bolts, so that the plate body unit is fixed. The cover plate 102 is split into one plate body unit, and when later maintenance is performed, only the plate body unit corresponding to the transfer module 2 is required to be removed, and the wiring between the pin surface 203 of the other area and the first electric connector or the second electric connector is not affected, so that the maintenance is facilitated.

In one embodiment, as shown in fig. 2, the mounting bracket 105 is located on a side of the adaptor bracket 1 near the second electrical connector, so that the adaptor box is conveniently fixed on the original screen through the mounting bracket 105 and is also conveniently connected with the second electrical connector.

In one embodiment, as shown in fig. 8, a rear cover 106 is further disposed on a side of the adapter bracket 1 close to the second electrical connector, and a plurality of wiring grooves 107 are formed in the rear cover 106 to cover wiring positions, thereby improving safety.

The device disclosed by the application uses a self-grinding standard interface, can be suitable for reconstruction of different plants, can be directly installed in an original screen, and plays a role in wiring conversion of new and old secondary equipment.

In one embodiment, a method for modifying a secondary device based on a primary screen is disclosed, and the method comprises the following steps of: the switching box for completing wiring is prepared in advance before power failure; the switch box is used for distributing wires between the wiring surfaces of two switches 201 on the same switch module 2 for different switch modules 2; after the power is off, the old secondary equipment is removed, and the two pin surfaces 202 of each transfer module 2 of the transfer box are respectively and electrically connected with the corresponding first electric connector and the corresponding second electric connector in a wiring mode.

According to the embodiment, the new secondary equipment is connected into the wiring position of the old secondary equipment and the screen cabinet through the transfer box, so that the screen cabinet does not need to be replaced, the secondary equipment can be replaced on the basis of the original screen, the power failure time is shortened, and meanwhile, the cost and the risk are reduced. The electrical connection between the two wiring surfaces 203 is according to the functional wiring, so that the two pin surfaces 202 are correspondingly connected through the wiring of the wiring surfaces 203, the pin surfaces 202 are electrically connected with the first electrical connector and the second electrical connector, the corresponding electrical connection between the first electrical connector and the second electrical connector is realized, and the installation of new secondary equipment on the original screen is further realized. Since wiring between the wiring surfaces 203 can be completed before a power outage, the power outage time is greatly reduced. In addition, as the transfer box is connected with the first electric connector and the second electric connector through the pin surface 202, the transfer box can be quickly plugged and unplugged with the first electric connector and the second electric connector, the transfer efficiency is improved, the power failure time is further reduced, and the cost and the risk of on-site wiring are reduced.

As described in fig. 9, fig. 9 illustrates a secondary plant retrofit method. And the point-to-point wiring is completed in the transfer box according to the implementation function before power failure. After the power is off, the adapter box is connected with the electric connector (namely the first electric connector) of the secondary equipment and the electric connector (namely the second electric connector) on the original screen in a plugging mode, so that the power off time and the construction time of more than half of the power can be saved, and the construction cost is greatly reduced. The secondary equipment can be the secondary equipment that different producer provided, and the adapter box can fully adapt.

The application discloses a secondary equipment transfer box based on former screen and transformation method, have designed two kinds of terminal adapters 201 of opening/opening, electric current/voltage, constitute transfer module 2, carry transfer module 2 in transfer frame 1, modular structure and frame structure have been applied, make into the transfer box that can adapt to all producer's screen cabinet equipment transformation, accomplish the transformation method of the quick plug switching of new secondary equipment and former screen with this transfer box, the power failure time of traditional transformation and present former screen transformation mode is long, the construction volume is big, unreliable, the operation risk is high scheduling problem has been solved.

The technical features of the above-described embodiments may be arbitrarily combined, and all possible combinations of the technical features in the above-described embodiments are not described for brevity of description, however, as long as there is no contradiction between the combinations of the technical features, they should be considered as the scope of the description.

The above examples illustrate only a few embodiments of the invention, which are described in detail and are not to be construed as limiting the scope of the invention. It should be noted that it will be apparent to those skilled in the art that several variations and modifications can be made without departing from the spirit of the invention, which are all within the scope of the invention. Accordingly, the scope of protection of the present invention is to be determined by the appended claims.

Claims (10)

1. The utility model provides a secondary equipment transfer box based on former screen which characterized in that, secondary equipment transfer box based on former screen includes:

a transfer frame; the switching modules comprise two switches, each switch comprises a pin surface and a wiring surface, the two switches on the same switching module are electrically connected through the wiring surfaces which are oppositely arranged, and the pin surfaces of the two switches on the same switching module are respectively used for being electrically connected with a first electric connector and a second electric connector; the first electric connector is an electric connector of new secondary equipment, and the second electric connector is an electric connector connected with old secondary equipment.

2. The primary screen-based secondary device pod of claim 1 wherein the pod includes a support spacer for carrying and maintaining two of the adapters on the same pod on the same plane.

3. The primary screen-based secondary equipment transfer box of claim 2, wherein the transfer frame is provided with a plurality of clamping grooves in sliding fit with the supporting partition plates, and the clamping grooves are used for providing installation and positioning of the transfer modules corresponding to the supporting partition plates.

4. The primary screen-based secondary device pod of claim 1, wherein the pod comprises:

the rectangular frame is formed by connecting four side plates end to end and provided with a hollow part, and the hollow part is used for accommodating the switching module; and the cover plate is used for sealing the hollow part, and a yielding hole is formed in the cover plate and is used for electrically connecting the pin surface with the first electric connector or the second electric connector.

5. The primary screen-based secondary equipment transfer box of claim 4, wherein a cross bar with ends respectively connected with the corresponding side plates is arranged in the rectangular frame.

6. The primary screen-based secondary equipment transfer box of claim 4, wherein the cover plate comprises a plurality of plate body units corresponding to the transfer modules one by one, and adjacent plate body units are closely attached to each other along with the array arrangement corresponding to the transfer modules.

7. The primary screen-based secondary equipment junction box of any one of claims 1 to 6, wherein a mounting bracket is provided protruding from a side of the junction housing adjacent to the second electrical connector for securing the junction housing to the primary screen.

8. The primary screen-based secondary device pod of claim 1 wherein the pod modules are of multiple types, different types of pod modules corresponding to different ones of the adapters.

9. The primary screen-based secondary device pod of claim 8 wherein the pod types include on/off and current/voltage; when the switching module is a current/voltage switching module, the wiring surfaces of the two switches corresponding to the current/voltage switching module are connected in a double-compression mode.

10. A method for modifying a primary screen-based secondary device, characterized in that the primary screen-based secondary device transfer box according to any one of claims 1 to 9 is used, and the method comprises:

the transfer box for completing wiring is prepared in advance before power failure; the switching box is used for wiring between wiring surfaces of two switching devices on the same switching module aiming at different switching modules;

and removing the old secondary equipment after power failure, and electrically connecting the two pin surfaces of each transfer module of the transfer box with the corresponding first electric connector and the corresponding second electric connector in a wiring mode.