CN210245222U

CN210245222U - Transformer with good heat dissipation

Info

Publication number: CN210245222U
Application number: CN201921311426.3U
Authority: CN
Inventors: Meijuan Lai; 赖美娟
Original assignee: Dongguan Xunkang Electronic Technology Co ltd
Current assignee: Dongguan Xunkang Electronic Technology Co ltd
Priority date: 2019-08-13
Filing date: 2019-08-13
Publication date: 2020-04-03
Anticipated expiration: 2029-08-13

Abstract

The utility model relates to the technical field of transformers, in particular to a transformer with good heat dissipation; the heat dissipation device comprises a body and a heat dissipation shell arranged on the outer side of the body; the body comprises an iron core, a framework, a first coil, a second coil and a base; the outer wall of the framework is provided with an annular partition plate; the framework is divided into an upper frame and a lower frame by the annular partition plate; the first coil and the second coil are respectively wound on the upper frame and the lower frame; the iron core comprises a top plate, a bottom plate, an upper iron column and a lower iron column which are respectively arranged at the bottom of the top plate and the top of the bottom plate; the middle part of the framework is provided with a column groove for accommodating the upper iron column and the lower iron column; the base is arranged at the bottom of the bottom plate; the outer side of the radiating shell is provided with a plurality of fixed radiating fins and a plurality of movable radiating fins; the fixed radiating fins and the movable radiating fins are arranged at intervals; the fixed radiating fins are fixedly connected with the radiating shell; the movable heat sink is detachably connected with the heat dissipation housing through a mounting member. The utility model discloses a set up the heat dissipation shell, the heat dissipation is good.

Description

Transformer with good heat dissipation

Technical Field

The utility model relates to a transformer technical field, concretely relates to transformer that heat dissipation is good.

Background

The power transformer can generate heat in the using process, and when the heat cannot be dissipated, the transformer is easily burnt out. Therefore, when the transformer is installed and used, the mode of the additional fan is adopted, the heat dissipation effect is achieved, but the installation environment has higher requirements, and the fan can be additionally installed for heat dissipation.

Disclosure of Invention

An object of the utility model is to overcome above shortcoming, provide a transformer that the heat dissipation is good, through setting up the heat dissipation shell, the heat dissipation is good.

In order to achieve the above purpose, the specific scheme of the utility model is as follows: a transformer with good heat dissipation comprises a body and a heat dissipation shell arranged on the outer side of the body; the body comprises an iron core, a framework, a first coil, a second coil and a base; the outer wall of the framework is provided with an annular partition plate; the annular partition plate divides the framework into an upper frame and a lower frame; the first coil and the second coil are respectively wound on the upper frame and the lower frame; the iron core comprises a top plate, a bottom plate, an upper iron column and a lower iron column which are respectively arranged at the bottom of the top plate and the top of the bottom plate; the upper iron column and the lower iron column are oppositely arranged; the middle part of the framework is provided with a column groove for accommodating the upper iron column and the lower iron column; the base is arranged at the bottom of the bottom plate; a plurality of fixed radiating fins and a plurality of movable radiating fins are arranged on the outer side of the radiating shell; the fixed radiating fins and the movable radiating fins are arranged at intervals; the fixed radiating fins are fixedly connected with the radiating shell; the movable heat sink is detachably connected with the heat dissipation shell through a mounting part.

The utility model discloses further set up to, the body with be equipped with the heat conduction casting glue between the heat dissipation shell.

The utility model discloses further set up to, fixed fin with all be equipped with the water conservancy diversion through-hole on the activity fin.

The utility model is further arranged in that the side part of the base is provided with a plurality of lead grooves for placing the leading-out ends of the first coil and the second coil; and a clamping piece used for clamping the leading-out end of the first coil and the leading-out end of the second coil is arranged in the lead groove.

The utility model is further provided that the clamping piece comprises a transverse part and a first vertical part and a second vertical part which are respectively arranged at two ends of the transverse part; the transverse part, the first vertical part and the second vertical part enclose a U-shaped groove; the leading-out end of the first coil and the leading-out end of the second coil are clamped with the U-shaped groove.

The utility model is further arranged that the mounting part comprises a clamping groove and a clamping block; the clamping groove is arranged on the heat dissipation shell; the clamping block is arranged at the bottom of the movable radiating fin; the inner wall of the clamping groove is provided with a convex block; the clamping block is provided with a catching groove used for being clamped with the convex block.

The utility model discloses further set up as, go up the iron prop with be equipped with the air gap piece down between the iron prop.

The utility model has the advantages that: by arranging the annular partition plate, the creepage distance of the transformer can be increased under the condition of not increasing the height of the framework; through setting up the heat dissipation shell, can effectively give off the heat in the body, under the condition that does not increase the fan, improve the radiating rate of transformer, increase the life of transformer.

Drawings

The invention is further described with the aid of the accompanying drawings, in which, however, the embodiments do not constitute any limitation to the invention, and for a person skilled in the art, other drawings can be derived from the following drawings without inventive effort.

Fig. 1 is a schematic view of the overall structure of the present invention with the first coil and the second coil omitted;

FIG. 2 is an exploded view of the body;

FIG. 3 is a schematic structural view of a heat dissipation housing;

FIG. 4 is a schematic structural view of a movable heat sink;

FIG. 5 is a schematic structural diagram of the clamping block;

FIG. 6 is a schematic structural view of the locking groove;

fig. 7 is a schematic structural view of the clamping member.

Wherein: 1-a heat dissipation housing; 21-iron core; 22-a backbone; 25-a base; 26-an annular divider plate; 261-shelving; 262-lower shelf; 211-top plate; 212-a backplane; 213-upper iron column; 214-lower iron column; 11-fixing the heat sink; 12-a movable heat sink; 13-a flow guide through hole; 3-lead slot; 31-pin; 4-a clamping member; 41-transverse part; 42-a first vertical section; 43-a second vertical section; 44-a U-shaped slot; 51-a clamping groove; 52-a clamping block; 53-bumps; 54-catching groove.

Detailed Description

The following detailed description of the present invention, taken in conjunction with the accompanying drawings and specific examples, is not intended to limit the scope of the invention.

As shown in fig. 1 to 7, the transformer with good heat dissipation of the present embodiment includes a body and a heat dissipation housing 1 installed outside the body; the body comprises an iron core 21, a framework 22, a first coil, a second coil and a base 25; the outer wall of the framework 22 is provided with an annular partition plate 26; the annular partition plate 26 divides the framework 22 into an upper frame 261 and a lower frame 262; the first coil and the second coil are respectively wound on the upper frame 261 and the lower frame 262; the iron core 21 comprises a top plate 211, a bottom plate 212, and an upper iron column 213 and a lower iron column 214 respectively arranged at the bottom of the top plate 211 and the top of the bottom plate 212; the upper iron column 213 and the lower iron column 214 are oppositely arranged; the middle part of the framework 22 is provided with a cylindrical groove for accommodating the upper iron column 213 and the lower iron column 214; the base 25 is arranged at the bottom of the bottom plate 212; a plurality of fixed radiating fins 11 and a plurality of movable radiating fins 12 are arranged on the outer side of the radiating shell 1; the fixed radiating fins 11 and the movable radiating fins 12 are arranged at intervals; the fixed radiating fins 11 are fixedly connected with the radiating shell 1; the movable heat sink 12 is detachably connected to the heat dissipation housing 1 through a mounting member.

Specifically, the conventional bobbin 22 does not have the annular partition plate 26, and by providing the annular partition plate 26, the creepage distance of the transformer can be increased without increasing the height of the bobbin 22; by arranging the heat dissipation shell 1, the heat in the body can be effectively dissipated, the heat dissipation speed of the transformer is improved under the condition that a fan is not added, and the service life of the transformer is prolonged; by arranging the fixed radiating fins 11, the contact area between the radiating shell 1 and the air can be increased, and the radiating speed can be accelerated; considering the overall weight and the heat dissipation effect, the number of the movable heat dissipation fins 12 can be freely adjusted by arranging the movable heat dissipation fins 12, and the overall weight and the heat dissipation effect are considered.

As shown in fig. 1-7, in the transformer with good heat dissipation of the present embodiment, a heat conducting potting adhesive is disposed between the body and the heat dissipation housing 1.

Through setting up heat conduction pouring sealant be favorable to with heat from the body to the heat dissipation shell 1 in for the radiating rate.

As shown in fig. 1 to 7, in the transformer with good heat dissipation of the present embodiment, the fixed heat sink 11 and the movable heat sink 12 are both provided with a flow guiding through hole 13.

The flow velocity of air can be effectively improved by arranging the diversion through holes 13, and heat dissipation is accelerated.

As shown in fig. 1 to 7, in the transformer with good heat dissipation of the present embodiment, the side of the base 25 is provided with a plurality of lead slots 3 for placing the leading end of the first coil (not shown) and the leading end of the second coil (not shown); and a clamping piece 4 for clamping the leading-out end of the first coil and the leading-out end of the second coil is arranged in the lead slot 3.

Specifically, pins 31 for soldering the transformer on the circuit board are provided below the base 25; the leading ends of the first and second coils will be soldered to the pins 31; the effect of current wire casing 3 is only the effect of injecing first coil or second coil and drawing forth the end, though draw forth the end and place in wire casing 3, nevertheless still can remove about, will be unfavorable for drawing forth end and pin 31 welding, can effectively fix the position of drawing forth the end through setting up clamping piece 4, is favorable to going on of welding process.

As shown in fig. 1 to 7, in the transformer with good heat dissipation of the present embodiment, the clamping member 4 includes a transverse portion 41, and a first vertical portion 42 and a second vertical portion 43 respectively disposed at two ends of the transverse portion 41; the transverse part 41, the first vertical part 42 and the second vertical part 43 enclose a U-shaped groove 44; the leading-out end of the first coil and the leading-out end of the second coil are clamped with the U-shaped groove 44.

Specifically, with the above arrangement, the U-shaped groove 44 will clamp the terminals from both the left and right sides, preventing the terminals from moving left and right within the wire guiding groove 3.

As shown in fig. 1 to 7, in the transformer with good heat dissipation of the present embodiment, the mounting component includes a clamping groove 51 and a clamping block 52; the clamping groove 51 is arranged on the heat dissipation shell 1; the clamping block 52 is arranged at the bottom of the movable radiating fin 12; the inner wall of the clamping groove 51 is provided with a convex block 53; the clamping block 52 is provided with a fastening groove 54 for clamping with the projection 53.

Specifically, when the movable heat sink 12 needs to be inserted, the clamping groove 51 at the position where the movable heat sink 12 needs to be added is selected, and then the clamping block 52 at the bottom of the movable heat sink 12 is inserted into the clamping groove 51 until the projection 53 is clamped with the buckling groove 54, so that the movable heat sink 12 is prevented from being separated from the clamping groove 51 in the transportation process; when the movable heat sink 12 needs to be detached, the protrusion 53 can be slightly pried away from the clip groove 51 by using a tool, so that the movable heat sink 12 can be pulled out.

As shown in fig. 1 to 7, in the transformer with good heat dissipation of the present embodiment, an air gap sheet (not shown) is disposed between the upper iron leg 213 and the lower iron leg 214. The loss can be reduced and the efficiency is higher by arranging the air gap sheet.

The above is only a preferred embodiment of the present invention, so all the equivalent changes or modifications made by the structure, features and principles in accordance with the claims of the present invention are included in the protection scope of the present invention.

Claims

1. The utility model provides a transformer that heat dissipation is good which characterized in that: comprises a body and a heat dissipation shell (1) arranged outside the body;

the body comprises an iron core (21), a framework (22), a first coil, a second coil and a base (25);

the outer wall of the framework (22) is provided with an annular partition plate (26); the annular partition plate (26) divides the framework (22) into an upper frame (261) and a lower frame (262);

the first coil and the second coil are respectively wound on the upper frame (261) and the lower frame (262);

the iron core (21) comprises a top plate (211), a bottom plate (212), and an upper iron column (213) and a lower iron column (214) which are respectively arranged at the bottom of the top plate (211) and the top of the bottom plate (212); the upper iron column (213) and the lower iron column (214) are arranged oppositely;

the middle part of the framework (22) is provided with a column-shaped groove for accommodating the upper iron column (213) and the lower iron column (214);

the base (25) is arranged at the bottom of the bottom plate (212);

a plurality of fixed radiating fins (11) and a plurality of movable radiating fins (12) are arranged on the outer side of the radiating shell (1); the fixed radiating fins (11) and the movable radiating fins (12) are arranged at intervals;

the fixed radiating fins (11) are fixedly connected with the radiating shell (1); the movable radiating fin (12) is detachably connected with the radiating shell (1) through a mounting part.

2. The transformer with good heat dissipation according to claim 1, wherein: a heat-conducting pouring sealant is arranged between the body and the heat-radiating shell (1).

3. The transformer with good heat dissipation according to claim 1, wherein: the fixed radiating fins (11) and the movable radiating fins (12) are provided with flow guide through holes (13).

4. The transformer with good heat dissipation according to claim 1, wherein: a plurality of lead grooves (3) for placing the leading-out ends of the first coil and the second coil are arranged on the side part of the base (25); and a clamping piece (4) used for clamping the leading-out end of the first coil and the leading-out end of the second coil is arranged in the lead groove (3).

5. The transformer with good heat dissipation of claim 4, wherein: the clamping piece (4) comprises a transverse part (41) and a first vertical part (42) and a second vertical part (43) which are respectively arranged at two ends of the transverse part (41); the transverse part (41), the first vertical part (42) and the second vertical part (43) enclose a U-shaped groove (44); the leading-out end of the first coil and the leading-out end of the second coil are clamped with the U-shaped groove (44).

6. The transformer with good heat dissipation according to claim 1, wherein: the mounting component comprises a clamping groove (51) and a clamping block (52); the clamping groove (51) is arranged on the heat dissipation shell (1); the clamping block (52) is arranged at the bottom of the movable radiating fin (12);

the inner wall of the clamping groove (51) is provided with a convex block (53); the clamping block (52) is provided with a buckle groove (54) which is used for being clamped with the convex block (53).

7. The transformer with good heat dissipation according to claim 1, wherein: an air gap sheet is arranged between the upper iron column (213) and the lower iron column (214).