Closed FTU casing and installation method thereof

The modularly designed sealed FTU enclosure solves the problems of inconvenient transportation and complicated installation in existing technologies, achieving convenient installation, efficient heat dissipation and sealing, and adapting to the needs of various installation scenarios.

CN120897381APending Publication Date: 2025-11-04FUJIAN HONGKE ELECTRIC POWER SCI & TECH CO LTD
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Patent Information

Application Number
CN202511026207.0
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-07-24
Publication Date
2025-11-04

AI Technical Summary

Technical Problem

The existing feeder terminal unit has a one-piece shell, which makes transportation inconvenient, installation cumbersome, and interfaces limited, making it difficult to expand and affecting the scope of use and convenience.

Method used

The modularly designed sealed FTU housing consists of two half-shells and a top cover. It is composed of a connecting mechanism, an auxiliary installation mechanism, an auxiliary heat dissipation mechanism, and a sealing mechanism to achieve locking, fixing, heat dissipation, and sealing of the half-shells.

Benefits of technology

The modular design facilitates transportation and maintenance, offers multiple installation methods, improves sealing and heat dissipation efficiency, extends service life, and adapts to the needs of different installation scenarios.

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Abstract

The invention discloses a closed FTU case and an installation method thereof, and relates to the technical field of power equipment. Comprising two half shells attached to each other and a top cover installed on the tops of the half shells, and connecting mechanisms are installed on the outer walls of the two half shells. By means of the shell designed in a modularized mode, production and transportation can be facilitated in the production and transportation process of the shell, all parts are relatively independent through the modularized design, only a certain module needs to be replaced or upgraded during maintenance, the whole equipment does not need to be disassembled, time and cost are saved, and by means of the arranged auxiliary installation mechanism, production and transportation are facilitated. The shell can be fixedly installed on the installation position, meanwhile, multiple installation modes are provided to adapt to different installation scenes, the expanding opening can be provided to adapt to different expanding requirements through the circular ring formed by the arranged semicircular rings, the opening of the circular ring can be filled through the arranged sealing mechanism to provide the sealing effect before and after expanding, and the sealing effect is improved. And the overall sealing performance of the shell is improved.
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Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of power equipment, in particular to a closed FTU shell and an installation method thereof. BACKGROUND

[0002] The feeder terminal unit (FTU) is a core device in the power system, mainly installed at the outdoor feeder node (such as a pole-mounted switch, a ring network cabinet, etc.), which collects real-time data such as current, voltage, switch state, etc. through remote measurement, remote signaling and remote control functions, and communicates with the power master station to realize fault detection, positioning and isolation, and at the same time supports remote control of switch opening and closing operation to quickly restore power supply in the non-fault area.

[0003] The patent with publication number CN114006150A discloses an antenna unit, a shell and a wireless terminal. The antenna unit comprises: a first substrate having opposite first and second ends; a second substrate having opposite third and fourth ends, the second substrate being arranged at an angle with the first substrate and the third end being fixedly connected to the second end; a slit structure comprising first, second and third slits connected in sequence at an angle, the first and second slits being located on the first substrate, and the third slit being located on the second substrate; and a feed part, one being arranged on each side of the end of the first slit away from the second slit, the feed part being used for connecting with a coaxial feeder to couple feed the slit structure. The antenna unit can make the wireless terminal product smaller in size and better in appearance.

[0004] The above-mentioned and similar principle shells have the disadvantages of inconvenient installation and transportation. The feeder terminal unit shell in the prior art is mostly of an integral structure, which is inconvenient to better utilize the transportation space during transportation. Meanwhile, bolts or the like are mostly used for connection during installation, the installation process is relatively cumbersome, the interfaces are limited, it is inconvenient to expand the interfaces according to the actual use condition, and thus it is not conducive to improve the use range and convenience of the shell, and thus the present application is proposed. SUMMARY

[0005] The present application aims to provide a closed FTU shell and an installation method thereof to solve the problems in the background art.

[0006] In order to achieve the above object, the present application provides the following technical scheme: A closed FTU shell, comprising two mutually adhered half shells and a top cover installed on the top of the half shells, a connecting mechanism is installed on the outer wall of each of the two half shells, and the two half shells are locked by a locking ring to form a shell after being adhered, a fixing assembly is installed on the top cover to enhance the locking of the two half shells, an auxiliary heat dissipation mechanism is installed on the top cover to enhance the heat dissipation of the internal components of the shell, an auxiliary installation mechanism is installed on the connecting mechanism to fix the shell in position, the connecting mechanism comprises a semicircle ring embeddedly installed on the outer wall of the half shell, the semicircle ring is formed into a ring by the adhesion of the two half shells, a sealing mechanism is installed in the semicircle ring to improve the sealing performance of the ring, a strip-shaped groove is formed on the outer wall of one of the semicircle rings, a strip-shaped block is installed on the outer wall of the other semicircle ring and is matched with the strip-shaped groove, the strip-shaped block is inserted into the strip-shaped groove when the two semicircle rings are adhered, a half-thread groove is formed on the outer wall of the semicircle ring, and the half-thread grooves are formed into a threaded groove after the two semicircle rings are adhered, and the locking of the two half shells is completed by the threaded groove into which the locking ring is sleeved on the ring formed by the semicircle rings.

[0007] Further, the auxiliary heat dissipation mechanism comprises a heat dissipation air bag installed on the inner wall of the top cover, a top block is installed on the top cover, heat dissipation fans communicating with the heat dissipation air bag are installed on the two side outer walls of the top block, through holes are formed on the two side outer walls of the top block, and heat dissipation pipes communicating with the heat dissipation air bag are installed in the through holes.

[0008] Further, the auxiliary installation mechanism comprises a sleeve ring sleeved on the ring, the sleeve ring is located between the half shells and the locking ring, a limiting column is installed on the outer wall of the side where the sleeve ring is adhered to the half shell, a limiting groove corresponding to the limiting column is formed on the half shell, a vertical plate is installed on the bottom outer wall of the sleeve ring, an installation plate is arranged between the two vertical plates, an insertion slot is formed on the two side outer walls of the installation plate, an insertion block matched with the insertion slot is installed on the outer wall of the side of the vertical plate facing the installation plate, a fixing slot is formed on the top outer wall of the installation plate on both sides, the fixing slot penetrates the insertion block, the middle part of the installation plate is semicircular, a lifting assembly is embeddedly installed on the outer wall of the side of the installation plate facing the semicircle, and a limiting plate is installed on the piston rod of the lifting assembly.

[0009] Further, the sealing mechanism comprises a sealing air bag embeddedly installed on the inner wall of the semicircle ring, and a pumping air pump communicating with the sealing air bag is embeddedly installed on the outer wall of the half shell.

[0010] Further, the fixing assembly comprises a positioning slot formed at the corner of the top outer wall of the half shell, a sealing strip is installed on the top outer wall of the half shell, a positioning column corresponding to the positioning slot is installed on the bottom outer wall of the top cover, and a sealing groove corresponding to the sealing strip is formed on the top outer wall of the top cover.

[0011] Further, the one half shell is embedded with a magnet on the outer wall of the one side of the fitting surface and in the positioning groove, and the other half shell is embedded with an iron sheet on the outer wall of the one side of the fitting surface and on the bottom of the positioning column.

[0012] The application discloses a closed FTU shell mounting method using the closed FTU shell.

[0013] Compared with the prior art, the application has the following beneficial effects: The closed FTU shell and the mounting method thereof can lock the two half shells together to form the shell through the connecting mechanism and the locking ring, the whole FTU is composed of the two half shells, the top cover and the internal electronic devices, the shell is convenient to produce and transport due to the modular design, the parts are relatively independent, and only a certain module needs to be replaced or upgraded during maintenance, so that the whole equipment does not need to be disassembled, time and cost are saved, the shell can be fixed and mounted on the mounting position through the auxiliary mounting mechanism, various mounting modes are provided to adapt to different installation scenes, the expansion port is provided through the semicircle ring to adapt to different expansion requirements, the opening of the semicircle ring is filled through the sealing mechanism to provide the sealing effect before and after the expansion, and the overall sealing performance of the shell is improved.

[0014] Meanwhile, the auxiliary heat dissipation mechanism is arranged to provide the auxiliary heat dissipation effect, improve the operation efficiency of the internal electronic devices of the shell and prolong the service life, during the use of the shell, external air naturally flows through the heat dissipation pipe into the heat dissipation air bag and is discharged through another heat dissipation pipe, so that the heat exchange efficiency of the shell is passively improved, the exhaust and air suction are performed through the two heat dissipation fans, so that the heat exchange efficiency of the shell is actively improved, the fixing assembly is arranged to improve the fastening effect of the two half shells, and the strip-shaped groove and the strip-shaped block are arranged to play the positioning effect when the semicircle ring is formed.

[0015] Meanwhile, the limiting column cooperates with the limiting groove, so that the positioning and fixing effect is achieved, the middle part of the mounting plate is semicircular, so that the mounting adaptability is improved, the positioning groove and the positioning column are arranged, so that the connection of the two half shells is enhanced through the top cover, and the sealing strip cooperates with the sealing groove, so that the sealing property of the top cover and the shell is improved. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 It is a whole structure schematic view of the present application; Figure 2 It is a half shell structure schematic view of the present application; Figure 3 It is another half shell structure schematic view of the present application; Figure 4 It is an auxiliary heat dissipation mechanism structure schematic view of the present application; Figure 5 It is an auxiliary mounting mechanism structure schematic view of the present application.

[0017] In the figure: 1, half shell;2, top cover;3, auxiliary heat dissipation mechanism;301, heat dissipation air bag;302, top block;303, through hole;304, heat dissipation fan;4, connecting mechanism;401, semicircular ring;402, strip-shaped groove;403, strip-shaped block;5, locking ring;6, auxiliary mounting mechanism;601, sleeve ring;602, limiting column;603, vertical plate;604, plug-in block;605, fixed groove;606, limiting plate;607, mounting plate;7, sealing mechanism;701, sealing air bag;702, beating air pump;8, positioning groove;9, sealing strip;10, positioning column;11, sealing groove. DETAILED DESCRIPTION

[0018] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work fall within the scope of protection of the present application.

[0019] In the process of installing outdoor feeder node equipment (such as pole-mounted switch, ring network cabinet, etc.), airtight FTU casings need to be used, and the airtight FTU casing provided by the present application is specially used for outdoor feeder node equipment installation operation. In the process of using the airtight FTU casing for outdoor feeder node equipment installation operation, the components that need to be powered in the airtight FTU casing need to be powered in advance to ensure the normal installation and normal use of the casing.

[0020] For example, Figures 1-5As shown, the present application provides a technical solution: a closed FTU shell, comprising two mutually attached half shells 1 and a top cover 2 mounted on the top of the half shell 1, the outer wall of the two half shells 1 is provided with a connecting mechanism 4, and the two half shells 1 are locked by a locking ring 5 to form a shell, the top cover 2 is provided with a fixing assembly, which enhances the locking of the two half shells 1, the top cover 2 is provided with an auxiliary heat dissipation mechanism 3 for enhancing the heat dissipation of the internal components of the shell, the connecting mechanism 4 is provided with an auxiliary mounting mechanism 6 for mounting the shell in a fixed position, the connecting mechanism 4 comprises a semicircular ring 401 embedded on the outer wall of the half shell 1, the semicircular ring 401 is formed into a circular ring by the attachment of the two half shells 1, the semicircular ring 401 is provided with a sealing mechanism 7 for improving the sealing performance of the circular ring, one of the semicircular rings 401 is provided with a strip-shaped groove 402 on the outer wall, and the other semicircular ring 401 is provided with a strip-shaped block 403 matched with the strip-shaped groove 402, the strip-shaped block 403 is inserted into the strip-shaped groove 402 when the semicircular rings 401 are attached, and the outer wall of the semicircular ring 401 is provided with a half-thread groove, which forms a thread groove after the two semicircular rings 401 are attached, and the locking ring 5 is sleeved on the thread groove of the circular ring formed by the semicircular rings 401 to complete the locking of the two half shells 1.

[0021] It should be noted that the two half shells 1 can be locked together to form a shell by the connecting mechanism 4 cooperating with the locking ring 5, the overall FTU is composed of two half shells 1, a top cover 2 and internal electronic devices, the modular design of the shell can facilitate production and transportation during production and transportation, the modular design allows each part to be relatively independent, and only a certain module needs to be replaced or upgraded during maintenance, without the need to disassemble the entire device, saving time and cost, the auxiliary mounting mechanism 6 can fix the shell on the mounting position, and provides multiple installation methods to adapt to different installation scenes, the auxiliary heat dissipation mechanism 3 provides auxiliary heat dissipation effect, improves the operating efficiency of the internal electronic devices of the shell and prolongs the service life, the circular ring formed by the semicircular rings 401 can provide an expansion port to adapt to different expansion needs, the sealing mechanism 7 can fill the opening of the circular ring to provide sealing effect before and after expansion, improve the overall sealing performance of the shell, and the fixing assembly can improve the fastening effect of the two half shells 1.

[0022] As shown, Figure 4As shown, the auxiliary heat dissipation mechanism 3 comprises a heat dissipation air bag 301 mounted on the inner wall of the top cover 2, a top block 302 is mounted on the top cover 2, heat dissipation fans 304 are mounted on the outer walls of the two sides of the top block 302 and communicate with the heat dissipation air bag 301, and through holes 303 are formed on the outer walls of the two sides of the top block 302 and communicate with the heat dissipation air bag 301.

[0023] It should be noted that, during use of the shell, air from the outside naturally flows through the heat dissipation pipe into the heat dissipation air bag 301, and then is discharged through another heat dissipation pipe, thereby passively improving the efficiency of heat exchange inside the shell. Through the exhaust and suction of the two heat dissipation fans 304, the efficiency of heat exchange inside the shell can be actively improved.

[0024] As shown in Figure 5 , the auxiliary mounting mechanism 6 comprises a sleeve ring 601 sleeved on the ring, the sleeve ring 601 is located between the half shell 1 and the locking ring 5, the outer walls of the sleeve ring 601 on the side of the half shell 1 are provided with limiting columns 602, the half shell 1 is provided with limiting grooves corresponding to the limiting columns 602, the bottom outer walls of the sleeve ring 601 are provided with vertical plates 603, an installation plate 607 is arranged between the two vertical plates 603, the outer walls of the two sides of the installation plate 607 are provided with insertion grooves, the outer walls of the vertical plates 603 on the side facing the installation plate 607 are provided with insertion blocks 604 matched with the insertion grooves, the top outer walls of the two sides of the installation plate 607 are provided with fixing grooves 605, the fixing grooves 605 pass through the insertion blocks 604, the middle part of the installation plate 607 is semicircular, the outer walls of the installation plate 607 on the side facing the semicircular part are embedded with lifting assemblies, and the piston rods of the lifting assemblies are provided with limiting plates 606.

[0025] It should be noted that, through the cooperation of the limiting columns 602 and the limiting grooves, the positioning and fixing effect can be achieved, through the semicircular middle part of the installation plate 607, different shapes of protrusions can be matched during installation, the installation adaptability is improved, during installation, through the cooperation of the fixing grooves 605 and the fixing bolts, the shell can be installed on the installation position, through the start of the lifting assembly, the limiting plate 606 is driven to be clamped on the installation position, so that the shell can be installed on the installation position. The lifting assembly is a hydraulic cylinder and a lifting assembly, which is determined according to actual use, and the fixing grooves 605 pass through the insertion blocks 604, so that the installation fixing bolts pass through the insertion blocks 604, thereby enhancing the connection between the vertical plates 603 and the installation plate 607.

[0026] As shown in Figure 2 , the sealing mechanism 7 comprises sealing air bags 701 embedded and mounted on the top and bottom inner walls of the semicircular ring 401, and the outer walls of the half shell 1 are embedded with air pumps 702 communicating with the sealing air bags 701.

[0027] It needs to be noted that the air inside the sealed air bag 701 can be adjusted by starting the air pumping pump 702, the sealed air bag 701 can be inflated in the circular ring by filling the sealed air bag 701, and the opening in the circular ring can be sealed by the inflation of the four sealed air bags 701 in the circular ring.

[0028] As shown in Figure 2 and Figure 4 , the fixed assembly includes a positioning groove 8 arranged at the corner of the top outer wall of the half shell 1, a sealing strip 9 is arranged on the top outer wall of the half shell 1, a positioning column 10 corresponding to the positioning groove 8 is arranged on the bottom outer wall of the top cover 2, and a sealing groove 11 corresponding to the sealing strip 9 is arranged on the top outer wall of the top cover 2.

[0029] It needs to be noted that the connection of the two half shells 1 can be enhanced by the top cover 2 through the positioning groove 8 and the positioning column 10, and the sealing property of the top cover 2 and the shell can be improved by the sealing strip 9 cooperating with the sealing groove 11.

[0030] As shown in Figures 2-4 , the magnet is embedded and arranged on the outer wall of one side of the adhering surface of one half shell 1 and in the positioning groove 8, and the iron sheet is embedded and arranged on the outer wall of one side of the adhering surface of the other half shell 1 and on the bottom outer wall of the positioning column 10.

[0031] It needs to be noted that the magnet embedded on the half shell 1 and the positioning groove 8 and the iron sheet embedded on the half shell 1 and the positioning column 10 can provide the connection effect, and in order to improve the sealing property of the two half shells 1, the convex groove and the mounting convex block can be arranged on the half shell 1, the magnetism attraction connection can be provided, the shell does not need to use bolts and the like during the assembly process, and the installation is fast and convenient.

[0032] A sealed FTU shell mounting method, the mounting method comprising: two half shells 1 are adhered to form a shell, when the shell is formed, the half circular ring 401 on the two half shells 1 will be adhered to form a circular ring, the circular ring is used for placing an expansion interface, the sleeve ring 601 is sleeved on the outer wall of the circular ring and the locking ring 5 is arranged to complete the installation of the auxiliary installation mechanism 6 on the shell, the fixed groove 605 on the auxiliary installation mechanism 6 cooperates with the fixed bolt to complete the fixing of the shell position, the lifting assembly on the auxiliary installation mechanism 6 cooperates with the limiting plate 606 to complete the fixing of the shell position, and the positioning column 10 on the top cover 2 is inserted into the positioning groove 8 to complete the enhancement of the two half shells 1 to form the shell.

[0033] Although the embodiments of the present application have been shown and described, it can be understood by those skilled in the art that various changes, modifications, replacements and variations can be made to the embodiments without departing from the principles and spirits of the present application, and the scope of the present application is defined by the appended embodiments and their equivalents.

Claims

1. A sealed FTU housing, comprising two mutually fitted semi-shells (1) and a top cover (2) mounted on the top of the semi-shells (1), characterized in that: A connecting mechanism (4) is installed on the outer wall of each of the two half-shells (1). After the two half-shells (1) are fitted together, the locking ring (5) completes the locking of the two half-shells (1) to form a shell. A fixing component is installed on the top cover (2) to reinforce the locking of the two half-shells (1). An auxiliary heat dissipation mechanism (3) for enhancing the heat dissipation of the internal components of the shell is installed on the top cover (2). An auxiliary installation mechanism (6) for fixing the shell in a fixed position is installed on the connecting mechanism (4). The connecting mechanism (4) includes a semi-circular ring (401) embedded in the outer wall of the half-shell (1). The semi-circular ring (401) is formed into a ring by fitting the two half-shells (1) together. A sealing mechanism (7) for improving the sealing performance of the ring (401) is installed in the ring (401). A strip groove (402) is provided on the outer wall of one of the semi-circular rings (401), and a strip block (403) adapted to the strip groove (402) is installed on the outer wall of the other semi-circular ring (401). When the semi-circular ring (401) is attached to the semi-circular ring (401), the strip block (403) is inserted into the strip groove (402). A semi-threaded groove is provided on the outer wall of the semi-circular ring (401). After the two semi-circular rings (401) are attached, the semi-threaded groove forms a threaded groove. The locking of the two half-shells (1) is completed by the locking ring (5) being sleeved in the threaded groove on the ring formed by the semi-circular ring (401).

2. The sealed FTU housing according to claim 1, characterized in that: The auxiliary heat dissipation mechanism (3) includes a heat dissipation airbag (301) installed on the inner wall of the top cover (2), a top block (302) installed on the top cover (2), and heat dissipation fans (304) connected to the heat dissipation airbag (301) installed on both outer walls of the top block (302). Through holes (303) are opened on both outer walls of the top block (302), and heat dissipation pipes connected to the heat dissipation airbag (301) are installed in the through holes (303).

3. The sealed FTU housing according to claim 1, characterized in that: The auxiliary installation mechanism (6) includes a collar (601) fitted onto a circular ring. The collar (601) is located between the half-shell (1) and the locking ring (5). Limiting posts (602) are installed on the outer wall of the collar (601) on the side that is in contact with the half-shell (1). A limiting groove corresponding to the limiting post (602) is provided on the half-shell (1). Vertical plates (603) are installed on the bottom outer wall of the collar (601). An installation plate (607) is provided between the two vertical plates (603). 7) Slots are provided on both outer walls. Inserts (604) that are compatible with the slots are installed on the outer wall of the vertical plate (603) facing the mounting plate (607). Fixing grooves (605) are provided on both sides of the top outer wall of the mounting plate (607). The fixing grooves (605) pass through the inserts (604). The middle part of the mounting plate (607) is semi-circular. Lifting components are embedded on the outer wall of the mounting plate (607) facing the semi-circular side. Limiting plates (606) are installed on the piston rod of the lifting components.

4. The sealed FTU housing according to claim 1, characterized in that: The sealing mechanism (7) includes a sealing airbag (701) embedded in the top and bottom of the inner wall of the semi-circular ring (401), and a pump (702) that communicates with the sealing airbag (701) is embedded in the outer wall of the semi-shell (1).

5. A sealed FTU housing according to claim 1, characterized in that: The fixing component includes a positioning groove (8) opened at the corner of the top outer wall of the half shell (1), a sealing strip (9) installed on the top outer wall of the half shell (1), a positioning post (10) corresponding to the positioning groove (8) installed on the bottom outer wall of the top cover (2), and a sealing groove (11) corresponding to the sealing strip (9) opened on the top outer wall of the top cover (2).

6. The sealed FTU housing according to claim 1, characterized in that: Magnets are embedded in the outer wall of the mating surface of one of the half-shells (1) and in the positioning groove (8), and iron sheets are embedded in the outer wall of the mating surface of the other half-shell (1) and the bottom outer wall of the positioning post (10).

7. A method for installing a sealed FTU housing, characterized in that: The sealed FTU housing according to any one of claims 1-6 is used. The installation method includes: fitting two half-shells (1) together to form a housing. When forming the housing, the semi-circular rings (401) on the two half-shells (1) will fit together to form a circular ring. The circular ring is used to place the expansion interface. The collar (601) is fitted on the outer wall of the circular ring and a locking ring (5) is installed to complete the installation of the auxiliary installation mechanism (6) on the housing. The housing position is fixed by the fixing groove (605) on the auxiliary installation mechanism (6) in conjunction with the fixing bolt. The housing position is fixed by the lifting component on the auxiliary installation mechanism (6) in conjunction with the limiting plate (606). The housing position is reinforced by inserting the positioning post (10) on the top cover (2) into the positioning groove (8).

Citation Information

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