CN208077776U - A kind of power supply mutual inductor - Google Patents

Abstract

The utility model provides a kind of power supply mutual inductor, is related to field of electrical equipment.The power supply mutual inductor, including the first shell and second housing, it protects at the top of the bottom and second housing of the first shell of head cover and is fixedly connected, it is fixedly connected with protection head cover at the top of protection the first shell of head cover, the surface bottom portion of head cover second housing is protected to be fixedly connected with mounting seat by fixing bolt, the bottom of protection head cover mounting seat is fixedly connected with fixed plate by installation bolt.The power supply mutual inductor, there are two shells for setting, the mutual inductor of different transformation ratios is each provided in two shells, high voltage and high current can be transformed into low-voltage, the low current of different proportion, keep metrology and measurement safer, when one of mutual inductor damages, another can continue work, first cover top portion is provided with protection head cover, and second housing bottom is provided with mounting seat, can prevent rainwater etc. from causing circuit accident into enclosure.

Description

A kind of power supply mutual inductor

Technical field

The utility model is related to field of electrical equipment, specially a kind of power supply mutual inductor.

Background technology

Mutual inductor is also known as instrument transformer, is the general designation of current transformer and voltage transformer, can become high voltage Low-voltage, high current become low current, for measuring or protecting system, function mainly by high voltage or high current in proportion Be transformed into normal low voltage or standard small electric current, so as to realize measuring instrumentss, protection equipment and automatic control equipment standardization, Miniaturization, while mutual inductor may further be used to separate high-voltage system, to ensure the safety of the person and equipment.

The electric energy metering device of the high-voltage electric-energy meter and a large number of users of power plant and substation, is related to hair Electricity, power transmission, power supply and the multi-party interests of user, electric system often use alternating voltage, big current loop to transmit electric energy Electric power is sent to user, can not directly be measured with instrument, the effect of mutual inductor, be exactly by alternating voltage and high current press than Example, which drops to, can use instrument numerical value measured directly, directly be measured convenient for instrument, while being provided for relay protection and automatic device Power supply, the mostly safety of existing mutual inductor is poor, mutual inductor since working characteristics is sometimes in outdoor space, Mostly without safeguard, this results in mutual inductor usually to undergo exposing to the weather and cause for the top and bottom of traditional mutual inductor Service life shortens, and can also cause the accident when serious, and since traditional mutual inductor is mostly without connection instruction, when causing to install very Inconvenience easily causes hardly imaginable consequence once wrong.

Utility model content

(1) the technical issues of solving

In view of the deficiencies of the prior art, the utility model provides a kind of power supply mutual inductor, solves existing power supply The problem of safety difference when being installed and used with mutual inductor.

(2) technical solution

In order to achieve the above object, the utility model is achieved by the following technical programs：A kind of power supply mutual inductor, packet The first shell and second housing are included, is fixedly connected at the top of the bottom of first shell and second housing, first shell Top be fixedly connected with protection head cover, the surface bottom portion of the second housing is fixedly connected with installation bottom by fixing bolt Seat, the bottom of the mounting seat are fixedly connected with fixed plate by installation bolt, and the bottom of the fixed plate passes through universal wheel Seat is movably installed with movable pulley.

First shell is internally provided with the first mutual inductor, and the second housing is internally provided with the second mutual inductance Coil, the both sides of first shell and the both sides of second housing are respectively fixedly connected with there are two fuse, and the fuse is far from the The end surface fixing sleeve of one shell and second housing is connected to flange, the one end of the fuse far from the first shell and is located at first It is fixedly connected with the first inlet wire connection terminal on the left of shell, the one end of the fuse far from the first shell and is located at the first shell Right side be fixedly connected with the first outlet connection terminal, the surface of the fuse and be located at the first shell, second housing and flange Between fixing sleeve be connected to insulated porcelain sleeve, be fixedly connected with fixed support plate at the top of the inner wall of the mounting seat.

Preferably, the one end of the fuse far from second housing and be fixedly connected on the left of the second housing second into Line connection terminal, the one end of the fuse far from second housing and is fixedly connected with the second outlet company on the right side of the second housing Connecting terminal.

Preferably, the inside of the fixed support plate offers through-hole, and the both sides of the second housing offer fixation Mounting groove.

Preferably, the surface of the mounting seat offers mounting hole, and the bottom of the mounting seat offers multiple peaces Fill hole.

Preferably, the fixing bolt sequentially passes through mounting hole, through-hole and slot is fixedly mounted and extends to fixed installation slot Inside, the installation bolt sequentially passes through mounting hole and fixed plate and extends to the inside of fixed plate.

Preferably, first shell has inlet wire to connect prompt with the equal fixed bonding of the frontal left of second housing, described First shell has outlet to connect prompt with the equal fixed bonding of positive right side of face of second housing.

(3) advantageous effect

The utility model provides a kind of power supply mutual inductor.Has following advantageous effect：

1, the power supply mutual inductor, setting are each provided with the mutual of different transformation ratios there are two shell in two shells Feel coil, high voltage and high current can be transformed into low-voltage, the low current of different proportion, keep metrology and measurement safer, When one of mutual inductor damages, another can continue work, and the mutual inductor compared to single mutual inductor uses more Add conveniently, it is safer, the first cover top portion is provided with protection head cover, and second housing bottom is provided with mounting seat, can prevent Rainwater etc. causes circuit accident into enclosure, solves asking for safety difference when existing power supply is installed and used with mutual inductor Topic.

2, the power supply mutual inductor is provided with inlet wire connection instruction and connects instruction with outlet, staff and user is made to exist More convenient safety when line is installed, effectively prevent inlet wire to be connected with outlet and causes the accident on the contrary, compares traditional mutual inductance Device use is safer, and entire mutual inductor is simple in structure, easy to operate, reduces natural calamity and the artificially damage caused by mutual inductor It is bad, reduce the possibility of accident generation.

Description of the drawings

FIG. 1 is a schematic structural view of the utility model；

Fig. 2 is the utility model understructure sectional view；

Fig. 3 is the utility model the first shell mechanism top plan view；

Fig. 4 is the utility model second housing structure top plan view；

Fig. 5 is partial enlarged view at A in the utility model Fig. 2.

In figure：Spiral shell is fixed in 1 first shell, 2, second housing, 3 protection head covers, 4 mounting seats, 5 fixed plates, 6 movable pulleys, 7 Bolt, 8 installation bolts, 9 first mutual inductors, 10 fuses, 11 flanges, 12 first inlet wire connection terminals, 13 first outlet connecting pins Support is fixed in son, 14 insulated porcelain sleeves, 15 second mutual inductors, 16 second inlet wire connection terminals, 17 second outlet connection terminals, 18 Slot, 21 mounting holes, 22 mounting holes, 23 inlet wires connection instruction, 24 outlets connection instruction is fixedly mounted in plate, 19 through-holes, 20.

Specific implementation mode

The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without making creative work The every other embodiment obtained, shall fall within the protection scope of the present invention.

The utility model embodiment provides a kind of power supply mutual inductor, as shown in Figs. 1-5, including the first shell 1 and second The bottom of shell 2, the first shell 1 is fixedly connected with the top of second housing 2, the frontal left of the first shell 1 and second housing 2 Equal fixed bonding has inlet wire connection prompt 23, and the first shell 1 has outlet to connect with the equal fixed bonding of positive right side of face of second housing 2 Prompt 24, makes staff and user more convenient safety when installing line, inlet wire is effectively prevent to connect phase with outlet Counter to cause the accident, safer compared to traditional mutual inductor use, the top of the first shell 1 is fixedly connected with protection head cover 3, the The surface bottom portion of two shells 2 is fixedly connected with mounting seat 4 by fixing bolt 7, can prevent rainwater etc. from entering enclosure Circuit accident, the bottom of mounting seat 4 is caused to be fixedly connected with fixed plate 5 by installation bolt 8, the bottom of fixed plate 5 passes through Castor base is movably installed with movable pulley 6, is moved easily.

First shell 1 is internally provided with the first mutual inductor 9, and second housing 2 is internally provided with the second mutual inductor 15, two mutual inductor transformation ratios are different, and high voltage and high current can be transformed into the low-voltage of different proportion, small electricity Stream, keeps metrology and measurement safer, and when one of mutual inductor damages, another can continue work, compared to single The mutual inductor of mutual inductor is more convenient to use, safer, and the both sides of the first shell 1 and the both sides of second housing 2 are fixed respectively There are two fuse 10, end surface fixing sleeve of the fuse 10 far from the first shell 1 and second housing 2 to be connected to flange 11, core for connection Sub 10 one end far from the first shell 1 and it is fixedly connected with the first inlet wire connection terminal 12, fuse positioned at the left side of the first shell 1 10 one end far from the first shell 1 and it is fixedly connected with the first outlet connection terminal 13, fuse 10 positioned at the right side of the first shell 1 One end far from second housing 2 and the left side for being located at second housing 2 are fixedly connected with the second inlet wire connection terminal 16, and fuse 10 is remote One end from second housing 2 and the second outlet connection terminal 17 is fixedly connected with positioned at the right side of second housing 2, when wiring Inlet wire is connected to the first inlet wire connection terminal 12 and the second inlet wire connection terminal 16 according to inlet wire instruction 23 and outlet instruction 24, Outlet is connected on the first outlet terminal 13 and the second outlet connection terminal 17, the surface of fuse 10 and positioned at the first shell 1, Fixing sleeve is connected to insulated porcelain sleeve 14 between second housing 2 and flange 11, and fixed branch is fixedly connected at the top of the inner wall of mounting seat 4 The inside of fagging 18, fixed support plate 18 offers through-hole 19, and the both sides of second housing 2, which offer, is fixedly mounted slot 20, peace The surface of dress pedestal 4 offers mounting hole 21, and fixing bolt 7 sequentially passes through mounting hole 21, through-hole 19 and slot 20 is fixedly mounted simultaneously The inside that slot 20 is fixedly mounted is extended to, the bottom of mounting seat 4 offers multiple mounting holes 22, and installation bolt 8 sequentially passes through Fixing bolt 7 when installation, is passed through mounting hole 21 and logical by mounting hole 22 and fixed plate 5 and the inside for extending to fixed plate 5 Hole 19, which is screwed into, is fixedly mounted slot 20, and second housing 2 and mounting seat 4 are connected, installation bolt 8 is twisted across mounting hole 22 Into in fixed plate 5, mounting seat 4 and fixed plate 5 are connected, entire mutual inductor is simple in structure, easy to operate, reduces nature Disaster and the artificially damage caused by mutual inductor, reduce the possibility of accident generation.

Operation principle：When installation, mounting hole 21 and through-hole 19 is passed through to be screwed into fixed installation slot fixing bolt 7 first 20, second housing 2 and mounting seat 4 are connected, are then screwed into installation bolt 8 in fixed plate 5 across mounting hole 22, it will Mounting seat 4 is connected with fixed plate 5, and inlet wire is connected to first according to inlet wire instruction 23 and outlet instruction 24 after installing Outlet is connected to the first outlet terminal 13 and the second outlet connecting pin by inlet wire connection terminal 12 and the second inlet wire connection terminal 16 On son 17, finally connects and carry out use.

In conclusion the power supply mutual inductor, setting is each provided with different conversion ratios there are two shell in two shells High voltage and high current, can be transformed into low-voltage, the low current of different proportion, make metrology and measurement more by the mutual inductor of example Safety, when one of mutual inductor damages, another can continue work, and the mutual inductor compared to single mutual inductor makes With more convenient, safer, 1 top of the first shell is provided with protection head cover 3, and 2 bottom of second housing is provided with mounting seat 4, It can prevent rainwater etc. from causing circuit accident into enclosure, solve safe when existing power supply is installed and used with mutual inductor Property difference problem.

The power supply mutual inductor is provided with inlet wire connection instruction 23 and connects instruction 24 with outlet, makes staff and user More convenient safety when installing line, effectively prevent inlet wire to be connected with outlet and causes the accident on the contrary, mutual compared to traditional Sensor use is safer, and entire mutual inductor is simple in structure, easy to operate, reduces natural calamity and artificially caused by mutual inductor Damage reduces the possibility of accident generation.

While there has been shown and described that the embodiments of the present invention, for the ordinary skill in the art, It is appreciated that can these embodiments be carried out with a variety of variations in the case where not departing from the principles of the present invention and spirit, repaiied Change, replace and modification, the scope of the utility model are defined by the appended claims and the equivalents thereof.

Claims (6)

1. a kind of power supply mutual inductor, including the first shell (1) and second housing (2), the bottom of first shell (1) and the Two shells are fixedly connected at the top of (2), it is characterised in that：It is fixedly connected with protection head cover at the top of first shell (1) (3), the surface bottom portion of the second housing (2) is fixedly connected with mounting seat (4), the installation bottom by fixing bolt (7) The bottom of seat (4) is fixedly connected with fixed plate (5) by installation bolt (8), and the bottom of the fixed plate (5) passes through castor base It is movably installed with movable pulley (6)；

First shell (1) is internally provided with the first mutual inductor (9), and the second housing (2) is internally provided with Two mutual inductors (15), the both sides of first shell (1) and the both sides of second housing (2) are respectively fixedly connected with there are two fuse (10), end surface fixing sleeve of the fuse (10) far from the first shell (1) and second housing (2) is connected to flange (11), institute It states the one end of fuse (10) far from the first shell (1) and is fixedly connected with the connection of the first inlet wire on the left of the first shell (1) Terminal (12), the one end of the fuse (10) far from the first shell (1) and is fixedly connected with the on the right side of the first shell (1) One outlet connection terminal (13), the surface of the fuse (10) and be located at the first shell (1), second housing (2) and flange (11) Between fixing sleeve be connected to insulated porcelain sleeve (14), be fixedly connected with fixed support plate (18) at the top of the inner wall of the mounting seat (4).

2. a kind of power supply mutual inductor according to claim 1, it is characterised in that：The fuse (10) is far from second housing (2) one end and the second inlet wire connection terminal (16) is fixedly connected on the left of second housing (2), the fuse (10) is remote One end from second housing (2) and it is fixedly connected with the second outlet connection terminal (17) on the right side of second housing (2).

3. a kind of power supply mutual inductor according to claim 1, it is characterised in that：The inside of the fixed support plate (18) Through-hole (19) is offered, the both sides of the second housing (2), which offer, is fixedly mounted slot (20).

4. a kind of power supply mutual inductor according to claim 1, it is characterised in that：It opens on the surface of the mounting seat (4) Equipped with mounting hole (21), the bottom of the mounting seat (4) offers multiple mounting holes (22).

5. a kind of power supply mutual inductor according to claim 4, it is characterised in that：The fixing bolt (7) sequentially passes through Mounting hole (21), through-hole (19) and fixed installation slot (20) simultaneously extend to the inside that slot (20) is fixedly mounted, the installation bolt (8) mounting hole (22) and fixed plate (5) and the inside for extending to fixed plate (5) are sequentially passed through.

6. a kind of power supply mutual inductor according to claim 1, it is characterised in that：Outside first shell (1) and second The equal fixed bonding of frontal left of shell (2) has inlet wire connection prompt (23), and first shell (1) and second housing (2) are just The equal fixed bonding of right side of face has outlet connection prompt (24).