CN110718355A

CN110718355A - Waterproof type high-frequency transformer

Info

Publication number: CN110718355A
Application number: CN201910852676.6A
Authority: CN
Inventors: 陈锦勇
Original assignee: Individual
Current assignee: Individual
Priority date: 2019-09-10
Filing date: 2019-09-10
Publication date: 2020-01-21

Abstract

The invention provides a waterproof high-frequency transformer, which structurally comprises a waterproof heat dissipation mechanism, a shielding plate, a lead frame, pins, a main magnetic core accommodating groove, a first shielding plate, a second shielding plate and a primary winding framework, wherein the primary winding framework penetrates through the waterproof heat dissipation mechanism, the high-frequency transformer can still normally work under a severe environment through the arrangement of a waterproof shell and the shielding mechanism and through the protection action of a water repellent layer and the waterproof mechanism, the service range and the service life of the high-frequency transformer are enlarged, when equipment runs, external water vapor is prevented from permeating inwards through a hot air guide hole and is blocked by a bimetallic strip and a rubber plate, so that the external water vapor cannot permeate inwards, the external water vapor is effectively prevented from entering the high-frequency transformer, and the temperature of an inner shell framework is reduced through the arrangement of a semiconductor refrigerating sheet and the waterproof mechanism, so as to cool the winding on the inner primary winding skeleton.

Description

Waterproof type high-frequency transformer

Technical Field

The invention relates to the technical field of transformers, in particular to a waterproof high-frequency transformer.

Background

The transformer is one or indispensable electronic equipment in the electronic equipment, is usually used for changing the alternating voltage of equipment, and high frequency transformer is as switching power supply's leading component, is also used for adjusting the electric current of switching power supply transmission, guarantees to provide the electric energy for equipment normally, but the prior art has following shortcoming:

when the high-frequency transformer operates under the environment with higher humidity, surrounding water vapor can enter the inside of the high-frequency transformer, so that the winding of the transformer is in contact with the water, an iron core on the winding is burnt, the transformer cannot operate, the voltage of equipment cannot be regulated, and accidents are easily caused.

Summary of the invention

Technical problem to be solved

Aiming at the defects of the prior art, the invention provides a waterproof high-frequency transformer, which solves the problems that when the high-frequency transformer runs in an environment with higher humidity, surrounding water vapor can enter the high-frequency transformer, so that a winding of the transformer is contacted with water, an iron core on the winding is burnt, the transformer cannot run any more, the voltage of equipment cannot be regulated any more, and accidents are easily caused.

(II) technical scheme

In order to achieve the purpose, the invention is realized by the following technical scheme: a waterproof high-frequency transformer structurally comprises a waterproof heat dissipation mechanism, shielding plates, a lead frame, pins, a main magnetic core accommodating groove, a first shielding plate, a second shielding plate and a primary winding framework, wherein the primary winding framework penetrates through the waterproof heat dissipation mechanism, the number of the shielding plates is two, the two shielding plates are respectively bonded on two sides of the waterproof heat dissipation mechanism, the lower end of each shielding plate is welded with the upper end of the lead frame, the pins are embedded and installed below the lead frame, the main magnetic core accommodating groove and the primary winding framework are of an integrated structure, the first shielding plate and the second shielding plate are parallel to each other, the inner ring of the first shielding plate penetrates through the primary winding framework and is bonded through glue, the waterproof heat dissipation mechanism comprises a waterproof shell, a shielding mechanism, a semiconductor refrigeration sheet and a heat dissipation frame, the shielding mechanisms are two and are installed on two sides in the waterproof shell, the semiconductor refrigeration piece is arranged in the waterproof shell, and the inner ring heat dissipation frame is fixedly connected with the inner side of the waterproof shell.

Preferably, the waterproof housing comprises a water repellent layer, two fixing guide frames, two adsorption guide frames and a waterproof mechanism, the water repellent layer is coated outside the waterproof mechanism, the two fixing guide frames are welded on the inner wall of the waterproof mechanism, the two adsorption guide frames are arranged and mounted on the upper side and the lower side of the waterproof mechanism, and the water repellent layer can prevent water stains, water vapor and the like in the air from permeating into the high-frequency transformer, so that the operation of the high-frequency transformer is influenced.

Preferably, the fixed guide frame comprises two air guide frames, a partition plate support, air inlet holes and air outlet holes, the two air guide frames are welded to the upper end face and the lower end face of the front portion of the partition plate support respectively, the air guide frames and the air inlet holes are of an integrated structure, the air inlet holes are communicated with the air outlet holes, and grooves are formed in the upper side and the lower side of the partition plate support.

Preferably, the adsorption guide frame comprises a shielding cover, activated carbon and a supporting and connecting plate, the supporting and connecting plate is provided with six parts, the three parts form a group to form a groove for filling the activated carbon, and the shielding cover is fixed at the side end of the supporting and connecting plate.

Preferably, the waterproof mechanism comprises four waterproof covers, hot air outlet holes and thread slots, the hot air outlet holes and the waterproof covers are integrally cast and formed, and the waterproof covers and the thread slots are of an integrated structure.

Preferably, the shielding mechanism comprises bimetallic strips, connecting strips, a rubber plate and fixing bolts, the connecting strips are arranged between the bimetallic strips, the right side of the rubber plate is attached to the left side of the bimetallic strip through glue, and the fixing bolts penetrate through the bimetallic strips.

Preferably, the inner ring heat dissipation frame comprises an air outlet, an inner shell frame, a sealing plate and a limiting block, the air outlet and the inner shell frame are of an integrated structure, the limiting block is arranged on the air outlet, the sealing plate is hinged to the inner shell frame, and the limiting block is of a cuboid structure.

(III) advantageous effects

The invention provides a waterproof high-frequency transformer. The method has the following beneficial effects:

according to the invention, through the arrangement of the waterproof shell and the shielding mechanism and the protection effect of the water repellent layer and the waterproof mechanism, the high-frequency transformer can still normally work in a severe environment, the application range and the service life of the high-frequency transformer are enlarged, and when equipment is in operation, external water vapor penetrates inwards through the hot air guide hole and is blocked by the bimetallic strip and the rubber plate, so that the external water vapor cannot penetrate inwards, and the external water vapor is effectively prevented from leaking into the high-frequency transformer.

According to the invention, by arranging the semiconductor refrigerating sheet and the waterproof mechanism, when the internal high-frequency transformer works, a large amount of heat is generated, the pressure intensity inside the inner shell frame is gradually increased, when the pressure intensity reaches a certain value, the sealing plate is pushed to rotate outwards around the inner shell frame, so that the heat inside the inner shell frame is outwards moved, part of the heat is discharged to the air outlet through the air inlet hole in the air guide frame, the semiconductor refrigerating sheet absorbs heat to refrigerate the heat, then the semiconductor refrigerating sheet releases cold air to cool the inner shell frame, and the temperature of the inner shell frame is reduced, so that the winding on the internal primary winding framework is cooled.

Drawings

Fig. 1 is a schematic structural diagram of a waterproof high-frequency transformer according to the present invention;

fig. 2 is a schematic structural view of the inside of the waterproof high-frequency transformer according to the present invention;

FIG. 3 is a front view of the waterproof heat dissipation mechanism of the present invention;

FIG. 4 is a front view of the waterproof case of the present invention;

FIG. 5 is a schematic three-dimensional structure of the fixing guide of the present invention;

FIG. 6 is a schematic front view of the adsorption guide frame and the waterproof mechanism of the present invention;

FIG. 7 is a schematic three-dimensional structure of the shielding mechanism of the present invention;

fig. 8 is a front view of the inner ring heat dissipation frame according to the present invention.

In the figure: a waterproof heat dissipation mechanism-1, a baffle-2, a lead frame-3, a pin-4, a main magnetic core accommodating groove-5, a first baffle-6, a second baffle-7, a primary winding framework-8, a waterproof shell-11, a baffle mechanism-12, a semiconductor refrigeration sheet-13, an inner ring heat dissipation frame-14, a water repellent layer-112, a fixed guide frame-113, an adsorption guide frame-114, a waterproof mechanism-115, an air guide frame-131, a baffle plate bracket-132, an air inlet-133, an air outlet-134, a baffle cover-141, active carbon-142, a supporting connecting plate-143, a waterproof cover-151, a hot air outlet-152, a threaded slot-153, a bimetallic strip-11A, a connecting strip-11B, a rubber plate-11C, Fixing bolts-11D, air outlet holes-14A, an inner shell frame-14B, a sealing plate-14C and a limiting block-14D.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-8, an embodiment of the present invention provides a waterproof high-frequency transformer, which includes a waterproof heat dissipation mechanism 1, a shielding plate 2, a lead frame 3, two pins 4, a main core accommodating slot 5, a first shielding plate 6, a second shielding plate 7, and a primary winding frame 8, wherein the primary winding frame 8 penetrates through the waterproof heat dissipation mechanism 1, the two shielding plates 2 are respectively bonded to two sides of the waterproof heat dissipation mechanism 1, the lower end of the shielding plate 2 is welded to the upper end of the lead frame 3, the pins 4 are embedded under the lead frame 3, the main core accommodating slot 5 and the primary winding frame 8 are integrated, the first shielding plate 6 and the second shielding plate 7 are parallel to each other, the primary winding frame 8 penetrates through the inner ring of the first shielding plate 6 and is bonded by glue, and the waterproof heat dissipation mechanism 1 includes a waterproof housing 11, Shelter from mechanism 12, semiconductor refrigeration piece 13, inner circle heat dissipation frame 14, shelter from mechanism 12 and be equipped with two altogether, and install both sides in waterproof case 11, semiconductor refrigeration piece 13 is installed in waterproof case 11, inner circle heat dissipation frame 14 and the inboard fixed connection of waterproof case 11.

Wherein, waterproof housing 11 includes hydrophober layer 112, fixed guide 113, adsorbs guide 114, waterproofing mechanism 115, hydrophober layer 112 has been paintd to waterproofing mechanism 115 outside, fixed guide 113 is equipped with two altogether, and welds in waterproofing mechanism 115 inner wall all around, adsorb guide 114 is equipped with two altogether, and installs both sides about in waterproofing mechanism 115, and inside water stain, steam etc. that hydrophober layer 112 can prevent in the air permeated the high frequency transformer to make the high frequency transformer operation cause the influence.

Wherein, fixed guide frame 113 includes air guide frame 131, baffle support 132, inlet port 133, venthole 134, air guide frame 131 is equipped with two altogether, and welds respectively in baffle support 132 front portion terminal surface from top to bottom, air guide frame 131 and inlet port 133 structure as an organic whole, inlet port 133 and venthole 134 communicate each other, the recess is located to both sides about baffle support 132 for the effect of transmission steam, when inside heat was too big, can be through the recess with inside heat toward outer transport.

Wherein, adsorb guide frame 114 includes that shielding cover 141, active carbon 142, supporting connection board 143 is equipped with six altogether, and three be a set of, forms the recess for fill active carbon 142, shielding cover 141 fixes at supporting connection board 143 side, active carbon 142 can carry out absorbent effect to the produced cold air moisture of semiconductor refrigeration piece 13, and active carbon 142 also can adsorb the inside moisture of waterproofing mechanism 115 to the outside for waterproofing mechanism 115 can keep the state of no moisture.

Wherein, waterproofing mechanism 115 includes waterproof cover 151, steam delivery hole 152, screw thread slotted hole 153, steam delivery hole 152 is equipped with four altogether, and with waterproof cover 151 as an organic whole cast moulding, waterproof cover 151 and screw thread slotted hole 153 structure as an organic whole, screw thread slotted hole 153 is used for being connected with sheltering from mechanism 12 for shelter from mechanism 12 can effectually fix at waterproof cover 151 inner wall.

Wherein, it includes bimetallic strip 11A, connecting strip 11B, rubber slab 11C, fixing bolt 11D to shelter from mechanism 12, be equipped with connecting strip 11B between bimetallic strip 11A, rubber slab 11C right side and bimetallic strip 11A left side are laminated mutually and are binded through glue, fixing bolt 11D runs through in bimetallic strip 11A, when inside heat is too big, when can not timely discharging away, bimetallic strip 11A is because thermal effect, will take place the bending, drives rubber slab 11C and bends to open hot gas export hole 152, make inside heat pass through hot gas export hole 152 and go, when the temperature of inside gets back to normal value, bimetallic strip 11A can automatic recovery, make rubber slab 11C shelter from hot gas export hole 152 once more, avoid outside moisture, impurity to go on inside.

Wherein, inner circle heat dissipation frame 14 includes venthole 14A, interior casing frame 14B, shrouding 14C, stopper 14D, venthole 14A and interior casing frame 14B structure as an organic whole, be equipped with stopper 14D on the venthole 14A, shrouding 14C and interior casing frame 14B hinged joint, stopper 14D is the cuboid structure, and when the transformer in interior casing frame 14B produced a large amount of heats, because inside atmospheric pressure is too big, will promote shrouding 14C for shrouding 14C is toward outer the rotation, thereby opens shrouding 14C, discharges away inside steam.

The specific working process is as follows:

when the high-frequency transformer is in operation, the high-frequency transformer can still normally work in a severe environment by the protection effect of the water repellent layer 112 on the waterproof heat dissipation mechanism 1 and the waterproof mechanism 115, so that the application range and the service life of the high-frequency transformer are enlarged, when the equipment is in operation, external water vapor penetrates inwards through the hot air guide hole 152 and is blocked by the bimetallic strip 11A and the rubber plate 11C, so that the external water vapor cannot penetrate inwards, when the internal high-frequency transformer works, a large amount of heat is generated, the pressure inside the inner shell frame 14B is gradually increased, when the pressure reaches a certain value, the sealing plate 14C is pushed, so that the sealing plate 14C rotates outwards around the inner shell frame 14B, the heat inside the inner shell frame 14B flows outwards, and part of the heat is discharged to the air outlet hole 134 through the air inlet hole 133 on the air guide frame 131, the semiconductor refrigeration piece 13 absorbs heat and refrigerates the winding on the primary winding framework 8 through the semiconductor refrigeration piece 13, then the semiconductor refrigeration piece 13 releases cold air to cool the inner shell frame 14B, so that the temperature of the inner shell frame 14B is reduced, the winding on the primary winding framework 8 in the inner part is cooled, the cold air generated by the semiconductor refrigeration piece 13 is accompanied by certain water vapor, the generated water vapor is absorbed by the active carbon 142 in the groove formed by the supporting connecting plate 143, the waterproof cover 151 is kept dry, the hot air is discharged outwards by the inner shell frame 14B while the cold air is generated, the cold air cannot directly enter the inner shell frame 14B because the strength of the hot air is greater than that of the cold air, the moisture in the cold air can be effectively prevented from leaking to influence the running of the winding on the high-frequency transformer, when the heat is too large, the bimetallic strip 11A is under the action of high temperature, will take place to warp crooked to drive rubber slab 11C to fixing bolt 11D one side bending, thereby open steam escape hole 152, discharge away the heat of inside, after heat emission, bimetallic strip 11A will recover automatically under the influence of temperature, thereby shelter from steam escape hole 152 once more, avoid outside steam to run into.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. A waterproof high-frequency transformer structurally comprises a waterproof heat dissipation mechanism (1), shielding plates (2), a lead frame (3), pins (4), a main magnetic core accommodating groove (5), a first baffle plate (6), a second baffle plate (7) and a primary winding framework (8), wherein the primary winding framework (8) penetrates through the waterproof heat dissipation mechanism (1), the two shielding plates (2) are respectively bonded on two sides of the waterproof heat dissipation mechanism (1), the lower end of each shielding plate (2) is welded with the upper end of the lead frame (3), the pins (4) are embedded and installed below the lead frame (3), the main magnetic core accommodating groove (5) and the primary winding framework (8) are of an integrated structure, the first baffle plate (6) and the second baffle plate (7) are parallel to each other, the primary winding framework (8) penetrates through the inner ring of the first baffle plate (6) and is bonded through glue, the method is characterized in that:

waterproof heat dissipation mechanism (1) is including waterproof shell (11), shelters from mechanism (12), semiconductor refrigeration piece (13), inner circle heat dissipation frame (14), shelter from mechanism (12) and be equipped with two altogether, and install both sides in waterproof shell (11), semiconductor refrigeration piece (13) are installed in waterproof shell (11), inner circle heat dissipation frame (14) and the inboard fixed connection of waterproof shell (11).

2. The waterproof high-frequency transformer according to claim 1, characterized in that: the waterproof shell (11) comprises a water repellent layer (112), a fixing guide frame (113), an adsorption guide frame (114) and a waterproof mechanism (115), the water repellent layer (112) is coated outside the waterproof mechanism (115), the periphery of the fixing guide frame (113) is welded on the inner wall of the waterproof mechanism (115), and the adsorption guide frame (114) is installed on the inner side of the waterproof mechanism (115).

3. The waterproof high-frequency transformer according to claim 2, characterized in that: the fixed guide frame (113) comprises an air guide frame (131), a partition plate support (132), air inlet holes (133) and air outlet holes (134), the air guide frame (131) is welded on the front end face of the partition plate support (132), the air guide frame (131) and the air inlet holes (133) are of an integrated structure, and the air inlet holes (133) are communicated with the air outlet holes (134).

4. The waterproof high-frequency transformer according to claim 2, characterized in that: the adsorption guide frame (114) comprises a shielding cover (141), activated carbon (142) and a supporting connecting plate (143), the activated carbon (142) is filled in the supporting connecting plate (143), and the shielding cover (141) is fixed at the side end of the supporting connecting plate (143).

5. The waterproof high-frequency transformer according to claim 2, characterized in that: waterproof mechanism (115) include buckler (151), steam delivery hole (152), screw thread slotted hole (153), steam delivery hole (152) and buckler (151) are casting forming as an organic whole, buckler (151) and screw thread slotted hole (153) structure as an organic whole.

6. The waterproof high-frequency transformer according to claim 1, characterized in that: shelter from mechanism (12) and include bimetallic strip (11A), connecting strip (11B), rubber slab (11C), fixing bolt (11D), be equipped with connecting strip (11B) between bimetallic strip (11A), rubber slab (11C) right side and bimetallic strip (11A) left side are laminated mutually, fixing bolt (11D) runs through in bimetallic strip (11A).

7. The waterproof high-frequency transformer according to claim 1, characterized in that: the inner ring heat dissipation frame (14) comprises an air outlet hole (14A), an inner shell frame (14B), a sealing plate (14C) and a limiting block (14D), the air outlet hole (14A) and the inner shell frame (14B) are of an integrated structure, the limiting block (14D) is arranged on the air outlet hole (14A), and the sealing plate (14C) is hinged with the inner shell frame (14B).