CN214897987U

CN214897987U - Thin type alternating current transformer

Info

Publication number: CN214897987U
Application number: CN202120918054.1U
Authority: CN
Inventors: 信同权
Original assignee: Tianjin Xinda Yutong Electric Appliance Co ltd
Current assignee: Tianjin Xinda Yutong Electric Appliance Co ltd
Priority date: 2021-04-29
Filing date: 2021-04-29
Publication date: 2021-11-26
Anticipated expiration: 2031-04-29

Abstract

The utility model discloses a thin AC transformer, including several pieces of E type iron core and I type iron core of range upon range of and the line frame of suit in the center post of E type iron core, be equipped with first insulating barrier in the middle of the line frame, it has primary solenoid and secondary solenoid to twine respectively on the line frame of first insulating barrier both sides, several pieces of E type iron core and the outside parcel of I type iron core have the detachable casing, through setting up the horizontal cross section of center post and line frame wire winding cross section to the rectangle, and the horizontal cross sectional area of primary solenoid and secondary solenoid all does not exceed the horizontal cross sectional area of casing, make the whole volume of transformer thin; through the setting that can dismantle the casing both make the transformer easily the equipment, can inject each part position again, especially the casing makes the concatenation stable between every layer E type iron core and the I type iron core, and makes difficult removal between iron core layer and the layer, and iron core overall structure stability is strong, and transformer operating noise is low.

Description

Thin type alternating current transformer

Technical Field

The utility model belongs to the technical field of the transformer, specifically be a slim alternating current transformer.

Background

A transformer is a device that changes an alternating voltage using the principle of electromagnetic induction, and main components are a primary coil, a secondary coil, and an iron core (magnetic core). The main functions are as follows: voltage transformation, current transformation, impedance transformation, isolation, voltage stabilization (magnetic saturation transformer), and the like. Nowadays, liquid crystal televisions and other electrical appliances are all developed to be light and thin, which requires that matched electronic elements are developed to be light and thin at the same time, and the existing transformer has a large overall volume, brings inconvenience to practical application, and the light and thin transformer has large noise.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a slim alternating current transformer to solve the problem of proposing among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a slim alternating current transformer, includes the line frame of several range upon range of E type iron core and I type iron core and suit at the center post of E type iron core, the centre of line frame is equipped with first insulation baffle, it has primary solenoid and secondary solenoid to twine respectively on the line frame of first insulation baffle both sides, several the outside parcel of E type iron core and I type iron core has the detachable casing, the horizontal cross section of center post with the wire winding cross-section of line frame is the rectangle, the horizontal cross sectional area of primary solenoid and secondary solenoid all does not exceed the horizontal cross sectional area of casing.

The horizontal cross section of the central column and the winding section of the coil frame are both set to be rectangular, and the horizontal cross section area of the primary coil and the horizontal cross section area of the secondary coil do not exceed the horizontal cross section area of the shell, so that the integral volume of the transformer is thinned; the first insulating partition plate is arranged to facilitate the partition when the coil is wound; the setting of detachable casing both made the transformer easily the equipment, can inject each part position again, especially several position of range upon range of E type iron core and I type iron core, specifically, the casing makes the concatenation stable between every layer of E type iron core and the I type iron core, and makes difficult removal between iron core layer and the layer, and iron core overall structure stability is strong, and transformer operating noise is low.

Further, the length of the horizontal cross section of the central column is 2 times or more of the width of the horizontal cross section of the central column, and the horizontal cross section area of the central column is 3 times or more of the horizontal cross section area of the side column of the E-shaped iron core. This setting can make the whole volume attenuation of transformer, can provide sufficient space for the winding coil through the volume of reduction side column again.

Furthermore, the shell comprises a dustproof top plate, a limiting side plate and a bottom supporting plate, the dustproof top plate is connected with the limiting side plate, the limiting side plate is connected with the bottom supporting plate, the dustproof top plate and the bottom supporting plate are used for limiting the upper position and the lower position of the iron core, and the limiting side plate is used for limiting the left position and the right position of the iron core.

Furthermore, the dustproof top plate, the limiting side plate and the bottom supporting plate are symmetrically provided with extension plates, and the extension plates are used for wrapping the E-shaped iron core and the I-shaped iron core to limit the position between the layers of the iron core.

Furthermore, be equipped with insulating convex body on the epitaxial plate, insulating convex body is used for avoiding epitaxial plate contact iron core lateral surface influences the iron core heat dissipation.

Furthermore, a clamping hook is arranged on the epitaxial plate of the limiting side plate, a clamping groove is arranged on the bottom supporting plate, and the clamping hook is matched with the clamping groove. The setting of trip and draw-in groove makes spacing curb plate and bottom plate can dismantle and be connected.

Furthermore, limiting grooves are formed in the E-shaped iron core and the I-shaped iron core, and the limiting grooves are matched with the protrusions on the back of the clamping groove, so that the clamping groove can limit the E-shaped iron core and the I-shaped iron core.

Furthermore, the E-shaped iron cores and the I-shaped iron cores are formed in a staggered and laminated mode, and the vertical section of the E-shaped iron core of any layer is mutually overlapped with the I-shaped iron core of the adjacent layer.

Furthermore, the shell comprises an assembling plate, the assembling plate is connected with the limiting side plate, and the assembling plate is used for assembling and connecting the transformer in the whole equipment.

Furthermore, the assembling plate is provided with an assembling slot or an assembling hole, and the assembling slot or the assembling hole is used for positioning and mounting the assembling plate in the whole equipment.

Furthermore, the dustproof top plate, the limiting side plate and the assembling plate are integrally formed and made of stainless steel.

Furthermore, both ends of the coil holder are provided with second insulating partition plates for reinforcing the limitation of the coil winding area.

Furthermore, a wire slot is formed in the second insulating partition plate, and the wire slot is used for positioning and extending out of the end part of the wound coil.

The utility model discloses following beneficial effect has:

1. the horizontal cross section of the central column and the winding section of the coil frame are both set to be rectangular, and the horizontal cross section area of the primary coil and the horizontal cross section area of the secondary coil do not exceed the horizontal cross section area of the shell, so that the integral volume of the transformer is thinned; through the setting that can dismantle the casing both make the transformer easily the equipment, can inject each part position again, especially the casing makes the concatenation stable between every layer E type iron core and the I type iron core, and makes difficult removal between iron core layer and the layer, and iron core overall structure stability is strong, and transformer operating noise is low.

2. The utility model discloses a set the length of center post horizontal cross section to 2 times of the width of center post horizontal cross section and more than, set the horizontal cross sectional area of center post to 3 times of the horizontal cross sectional area of the side column of E type iron core and more than. This setting can make the whole volume attenuation of transformer, can provide sufficient space for the winding coil through the volume of reduction side column again, satisfies the transformer performance requirement.

Drawings

Fig. 1 is a schematic structural view of a thin ac transformer according to the present invention;

fig. 2 is an exploded view of fig. 1.

In the figure: 1. an E-shaped iron core; 101. a central column; 102. side columns; 103. a vertical section; 2. an I-shaped iron core; 3. a wire frame; 301. a first insulating spacer; 302. a second insulating spacer; 303. a wire slot; 4. a primary coil; 5. a secondary coil; 6. a housing; 601. a dust-proof top plate; 602. a limiting side plate; 603. a bottom pallet; 604. an epitaxial plate; 605. an insulating boss; 606. a hook is clamped; 607. a card slot; 608. assembling a plate; 609. assembling a slot; 610. an assembly hole; 611. the back is convex; 7. and a limiting groove.

Detailed Description

The present invention will be described in detail with reference to the accompanying drawings and examples.

Example 1

A thin type alternating current transformer is shown in figures 1 and 2 and comprises a plurality of stacked E-shaped iron cores 1 and I-shaped iron cores 2 and a wire frame 3 sleeved on a central post 101 of the E-shaped iron core 1, wherein a first insulating partition plate 301 is arranged in the middle of the wire frame 3, a primary coil 4 and a secondary coil 5 are respectively wound on the wire frame 3 on two sides of the first insulating partition plate 301, and second insulating partition plates 302 are arranged at two ends of the wire frame 3 and used for reinforcing coil winding area limitation. The second insulating partition plate 302 is provided with a wire slot 303, and the wire slot 303 is used for positioning and extending out of the end part of the coil after being wound. The E-shaped iron cores 1 and the I-shaped iron cores 2 are wrapped with detachable shells 6, the horizontal cross section of the central column 101 and the winding cross section of the coil frame 3 are both rectangular, and the horizontal cross sectional areas of the primary coil 4 and the secondary coil 5 do not exceed the horizontal cross sectional area of the shells 6.

The horizontal cross section of the central column 101 and the winding section of the coil holder 3 are both rectangular, so that the whole volume of the transformer is thinned; the first insulating partition 301 is arranged to facilitate separation when the coil is wound; the setting of detachable casing 6 both makes the transformer easily assemble, can inject each part position again, especially several range upon range of E type iron core 1 and I type iron core 2's position, specifically, casing 6 makes the concatenation stable between every layer of E type iron core and the I type iron core, and makes difficult removal between iron core layer and the layer, and iron core overall structure stability is strong, and transformer operating noise is low.

The length of the horizontal cross section of the central column 101 is 2 times or more, such as 3 times, 4 times, 5 times and the like, of the width of the horizontal cross section of the central column 101, and the horizontal cross section of the central column 101 is 3 times or more, such as 4 times, 5 times, 6 times and the like, of the horizontal cross section of the side column 102 of the E-type iron core 1. The setting can make the whole volume attenuation of transformer, can provide sufficient space for the winding coil through the volume that reduces side column 102 again, satisfies transformer performance requirement.

More specifically, as shown in fig. 2, the housing 6 includes a dust-proof top plate 601, a limiting side plate 602, and a bottom bracket plate 603, the dust-proof top plate 601 is connected to the limiting side plate 602, the limiting side plate 602 is connected to the bottom bracket plate 603, the dust-proof top plate 601 and the bottom bracket plate 603 are used for defining the up-down position of the iron core, and the limiting side plate 602 is used for defining the left-right position of the iron core. All be equipped with epitaxial plate 604 on dustproof roof 601, spacing curb plate 602 and the bottom plate 603 symmetrically, epitaxial plate 604 is used for wrapping up E type iron core 1 and I type iron core 2, the position between the restriction iron core.

More specifically, as shown in fig. 2, the extension plate 604 is provided with an insulating protrusion 605, and the insulating protrusion 605 is used to prevent the extension plate 604 from contacting the outer side of the core to affect the heat dissipation of the core.

More specifically, as shown in fig. 2, the extending plate 604 of the limiting side plate 602 is provided with a hook 606, the bottom supporting plate 603 is provided with a slot 607, and the hook 606 is matched with the slot 607. The arrangement of the hook 606 and the slot 607 makes the limit side plate 602 detachably connected with the bottom bracket plate 603.

More specifically, as shown in fig. 2, the E-shaped iron cores 1 and the I-shaped iron cores 2 are stacked in a staggered manner, and the vertical section 103 of any layer of the E-shaped iron core 1 is stacked with the adjacent layer of the I-shaped iron core 2, so that the overall resistance of the iron core can be increased, the current is reduced, the iron core is prevented from being too much melted due to too large heat of the current and affecting the use, and the joints of the magnetic circuits of all layers can be staggered with each other to reduce the air gaps at the joints and the magnetic resistance of the magnetic circuits, thereby reducing the loss. In addition, all open spacing recess 7 on E type iron core 1 and the I type iron core 2, spacing recess 7 and the protruding 611 looks adaptation in back of draw-in groove 607 for draw-in groove 607 can be spacing to E type iron core 1 and I type iron core 2.

More specifically, as shown in fig. 2, the housing 6 includes a mounting plate 608, the mounting plate 608 is connected to the position-limiting side plate 602, and the mounting plate 608 is used for mounting and connecting the transformer in the whole device. The assembling plate 608 is provided with an assembling slot 609 or an assembling hole 610, and the assembling slot 609 or the assembling hole 610 is used for positioning and mounting the assembling plate 608 in the whole machine equipment. The dust-proof top plate 601, the position-limiting side plate 602 and the assembling plate 608 are integrally formed and made of stainless steel.

The utility model relates to a slim alternating current transformer equipment as follows:

firstly, winding a primary coil 4 and a secondary coil 5 on a bobbin 3, and positioning and extending the ends of the wound coils from a wire groove 303;

secondly, inserting a central column 101 of an E-shaped iron core 1 into a bobbin 3 from the top, splicing an I-shaped iron core 2 with the E-shaped iron core 1, then inserting a central column 101 of another E-shaped iron core 1 into the bobbin 3 from the bottom, enabling a vertical section 103 of the E-shaped iron core 1 and the I-shaped iron core 2 on the previous layer to be mutually overlapped, splicing another I-shaped iron core 2 with the E-shaped iron core 1, and sequentially laminating the E-shaped iron core 1 and the I-shaped iron core 2 into an iron core whole;

thirdly, arranging a limiting groove 7 of the whole iron core on the back protrusion 611, so that the whole iron core is positioned on the bottom supporting plate 603;

fourthly, placing the dustproof top plate 601 and the limiting side plates 602 at the top and two sides of the whole iron core, and pressing down the extension plates 604 towards the direction close to the whole iron core to enable the insulating convex bodies 605 to be in contact with the iron core, wherein the extension plates 604 wrap the whole iron core and are not in large-area contact with the whole iron core, and a heat dissipation channel is formed in the space where the insulating convex bodies 605 are located, namely the space between the extension plates 604 and the whole iron core, so that the whole iron core is convenient to dissipate heat;

in the fifth step, the hook 606 is finally placed in the slot 607, so that the housing 6 is detachably mounted outside the iron core, the horizontal cross-sectional areas of the primary coil 4 and the secondary coil 5 do not exceed the horizontal cross-sectional area of the housing 6, and the assembly plate 608 is connected to the complete machine through the assembly slot 609 or the assembly hole 610.

It should be finally noted that the above embodiments are only used for illustrating the technical solutions of the embodiments of the present invention and not for limiting the same, and although the embodiments of the present invention are described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the embodiments of the present invention can still be modified or replaced with equivalents, and these modifications or equivalent replacements cannot make the modified technical solutions depart from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. The utility model provides a slim alternating current transformer, includes several range upon range of E type iron core (1) and I type iron core (2) and suit line frame (3) at center post (101) of E type iron core (1), its characterized in that, the centre of line frame (3) is equipped with first insulating barrier (301), it has elementary solenoid (4) and secondary solenoid (5), several to twine respectively on line frame (3) of first insulating barrier (301) both sides the outside parcel of E type iron core (1) and I type iron core (2) has detachable casing (6), the horizontal cross section of center post (101) with the wire winding cross-section of line frame (3) is the rectangle, the horizontal cross sectional area of elementary solenoid (4) and secondary solenoid (5) all do not exceed the horizontal cross sectional area of casing (6).

2. The thin type AC transformer according to claim 1, wherein the length of the horizontal cross section of the center pillar (101) is 2 times or more of the width of the horizontal cross section of the center pillar (101), and the horizontal cross section of the center pillar (101) is 3 times or more of the horizontal cross section of the side pillar (102) of the E-shaped iron core (1).

3. The thin alternating current transformer according to claim 2, wherein the housing (6) comprises a dustproof top plate (601), a limiting side plate (602) and a bottom supporting plate (603), the dustproof top plate (601) is connected with the limiting side plate (602), the limiting side plate (602) is connected with the bottom supporting plate (603), the dustproof top plate (601) and the bottom supporting plate (603) are used for limiting the up-down position of the iron core, and the limiting side plate (602) is used for limiting the left-right position of the iron core.

4. The thin alternating current transformer according to claim 3, wherein the dustproof top plate (601), the limiting side plate (602) and the bottom supporting plate (603) are symmetrically provided with an outer extending plate (604), the outer extending plate (604) is used for wrapping the E-shaped iron core (1) and the I-shaped iron core (2) and limiting the interlayer position of the iron cores, the outer extending plate (604) is provided with an insulating convex body (605), and the insulating convex body (605) is used for preventing the outer extending plate (604) from contacting the outer side surfaces of the iron cores to influence the heat dissipation of the iron cores.

5. The thin alternating current transformer according to claim 4, wherein a hook (606) is arranged on the extension plate (604) of the limiting side plate (602), a slot (607) is arranged on the bottom supporting plate (603), and the hook (606) is matched with the slot (607).

6. The thin alternating current transformer according to claim 5, wherein the E-shaped iron core (1) and the I-shaped iron core (2) are both provided with a limiting groove (7), and the limiting groove (7) is matched with a back protrusion (611) of the clamping groove (607), so that the clamping groove (607) can limit the E-shaped iron core (1) and the I-shaped iron core (2).

7. The thin type alternating current transformer according to claim 6, wherein the E-shaped iron cores (1) and the I-shaped iron cores (2) are stacked alternately, and the vertical section (103) of the E-shaped iron core (1) of any layer is stacked with the I-shaped iron core (2) of the adjacent layer.

8. The thin alternating current transformer according to any one of claims 3 to 7, wherein the housing (6) comprises a mounting plate (608), the mounting plate (608) is connected with the limiting side plate (602), the mounting plate (608) is used for connecting the transformer in the whole equipment, a mounting slot (609) or a mounting hole (610) is formed in the mounting plate (608), and the mounting slot (609) or the mounting hole (610) is used for positioning and mounting the mounting plate (608) in the whole equipment.

9. The low-profile ac transformer according to claim 8, wherein the dust-proof top plate (601), the position-limiting side plate (602) and the fitting plate (608) are integrally formed and made of stainless steel.

10. The low-profile alternating current transformer according to claim 1, wherein the two ends of the bobbin (3) are provided with second insulating partition plates (302), the second insulating partition plates (302) are used for reinforcing the coil winding area definition, the second insulating partition plates (302) are provided with wire slots (303), and the wire slots (303) are used for positioning and extending the coil winding rear end parts.