Damp-proof heat dissipation type high-frequency transformer

Abstract

The utility model relates to a moisture-proof heat dissipation type high-frequency transformer, which comprises a horizontal transformer framework, two magnetic cores and a heat dissipation metal cover, a plurality of groups of coils are wound on the horizontal transformer framework, and middle columns of the two magnetic cores are respectively inserted into the horizontal transformer framework from two ends of the horizontal transformer framework; the heat dissipation metal cover is clamped on the two magnetic cores, and the inner side wall of the heat dissipation metal cover is tightly attached to the horizontal transformer framework and the magnetic cores; a fixed glue point is adhered to the bottom of the joint of the two magnetic cores, and a moisture-proof glue point is adhered between the bottom of one magnetic core and the horizontal transformer framework. The beneficial effects are that no insulating tape needs to be wound outside the two magnetic cores, heat dissipation of the magnetic cores is facilitated, the heat dissipation metal cover is directly contacted with the magnetic cores, and the heat dissipation area of the magnetic cores is increased; and the moisture-proof glue point is adhered between the bottom of one magnetic core and the horizontal transformer framework, so that the magnetic core and the horizontal transformer framework are fixed, and a moisture-proof effect can also be achieved.

Description

Technical Field

[0001] The utility model relates to the field of high-frequency transformers, in particular to a moisture-proof and heat-dissipating high-frequency transformer. Background Art

[0002] In the existing high-frequency transformer, the magnetic core is fixed by winding multiple turns of insulating tape. The multiple turns of insulating tape result in poor heat dissipation effect of the magnetic core; and it is necessary to carry out dipping treatment to form a protective layer on the surface of the high-frequency transformer. Although it has a good moisture-proof effect, the operation is troublesome and the heat dissipation effect is reduced. Summary of the Utility Model

[0003] The purpose of the utility model is to overcome the above problems existing in the prior art and provide a moisture-proof and heat-dissipating high-frequency transformer.

[0004] To achieve the above technical purpose and reach the above technical effect, the utility model is realized through the following technical solutions:

[0005] A moisture-proof and heat-dissipating high-frequency transformer includes a horizontal transformer skeleton, two "E"-shaped magnetic cores, and a heat-dissipating metal cover. Multiple groups of coils are wound on the horizontal transformer skeleton. The middle columns of the two magnetic cores are respectively inserted into the horizontal transformer skeleton from both ends of the horizontal transformer skeleton; the heat-dissipating metal cover is clamped between the two magnetic cores, and the inner side wall of the heat-dissipating metal cover is closely attached to the horizontal transformer skeleton and the magnetic cores; a fixed glue point is bonded at the bottom of the butt joint of the two magnetic cores, and a moisture-proof glue point is bonded between the bottom of one of the magnetic cores and the horizontal transformer skeleton.

[0006] Wherein, a high-temperature tape is pasted above the pins of the horizontal transformer skeleton at the bottom end of the magnetic core.

[0007] Wherein, the first end of the horizontal transformer skeleton is provided with pin 1, pin 2, pin 3, pin 4, pin 6, and pin 7, and the second end of the horizontal transformer skeleton is provided with pin 8, pin 9, pin 10, pin 11, pin 13, and pin 14.

[0008] Wherein, there are four groups of coils. The four groups of coils are the first coil, the second coil, the third coil, and the fourth coil in sequence. The starting winding end of the first coil is connected to pin 1 and pin 2, and the ending winding end of the first coil is connected to pin 3 and pin 4; the starting winding end of the second coil is connected to pin 7, and the ending winding end of the second coil is connected to pin 6; the starting winding end of the third coil is connected to pin 13, and the ending winding end of the third coil is connected to pin 14; the starting winding end of the fourth coil is connected to pin 8 and pin 9, and the ending winding end of the fourth coil is connected to pin 10 and pin 11.

[0009] Among them, a magnetic core air gap is provided on the magnetic core close to the first end of the horizontal transformer skeleton.

[0010] Among them, the heat dissipation metal cover includes a rectangular metal top plate, and a pair of checkmark-shaped (i.e., "√"-shaped) metal clips are respectively arranged at both ends of the metal top plate, and the two magnetic cores are clamped between the two metal clips; a metal wing plate is respectively arranged on both sides of the top plate.

[0011] The beneficial effects of the present utility model are as follows: the two magnetic cores are clamped by the metal clips at both ends of the heat dissipation metal cover, and fixing glue points are bonded and fixed at the bottom of the butt joint of the two magnetic cores, and there is no need to wind insulating tape outside the two magnetic cores, which is beneficial to the heat dissipation of the magnetic core, and the heat dissipation metal cover is directly in contact with the magnetic core, increasing the heat dissipation area of the magnetic core; a moisture-proof glue point is bonded between the bottom of one magnetic core and the horizontal transformer skeleton, that is, the magnetic core and the horizontal transformer skeleton are fixed, and the moisture-proof effect can also be achieved. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] The drawings described herein are used to provide a further understanding of the present utility model and constitute a part of this application. The schematic embodiments of the present utility model and their descriptions are used to explain the present utility model and do not constitute an improper limitation to the present utility model. In the drawings:

[0013] Figure 1 is a schematic structural diagram of the high-frequency transformer in the present utility model observed from the second end of the horizontal transformer skeleton;

[0014] Figure 2 is a schematic side view structural diagram of the high-frequency transformer in the present utility model;

[0015] Figure 3 is a schematic bottom view structural diagram of the high-frequency transformer in the present utility model;

[0016] Figure 4 is a schematic bottom view structural diagram of one magnetic core in the present utility model;

[0017] Figure 5 is a schematic structural diagram of the connection between the coil and the pins in the present utility model;

[0018] Explanation of the reference numerals in the drawings: horizontal transformer skeleton 100, magnetic core 200, heat dissipation metal cover 300, metal top plate 301, metal clip 302, metal wing plate 303, coil 400, fixing glue point 500, moisture-proof glue point 600, high-temperature tape 700, pin one 1, pin two 2, pin three 3, pin four 4, pin six 6, pin seven 7, pin eight 8, pin nine 9, pin ten 10, pin eleven 11, pin thirteen 13, pin fourteen 14, first coil N1, second coil N2, third coil N3, fourth coil N4. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0019] The present utility model will be described in detail below with reference to the accompanying drawings and in conjunction with embodiments.

[0020] As Figures 1 to 5 shown, a moisture-proof and heat-dissipating high-frequency transformer includes a horizontal transformer skeleton 100, two "E"-shaped magnetic cores 200, and a heat-dissipating metal cover 300. Multiple sets of coils 400 are wound around the horizontal transformer skeleton 100, and the middle columns of the two magnetic cores 200 are inserted into the horizontal transformer skeleton 100 from both ends of the horizontal transformer skeleton 100.

[0021] A first end of the horizontal transformer skeleton 100 is provided with pin 1, pin 2, pin 3, pin 4, pin 6, and pin 7, and a second end of the horizontal transformer skeleton 100 is provided with pin 8, pin 9, pin 10, pin 11, pin 13, and pin 14.

[0022] There are four sets of coils 400. The four sets of coils are, in sequence, a first coil N1, a second coil N2, a third coil N3, and a fourth coil N4. The starting winding end of the first coil N1 is connected to pin 1 and pin 2, and the ending winding end of the first coil N1 is connected to pin 3 and pin 4; the starting winding end of the second coil N2 is connected to pin 7, and the ending winding end of the second coil N2 is connected to pin 6; the starting winding end of the third coil N3 is connected to pin 13, and the ending winding end of the third coil N3 is connected to pin 14; the starting winding end of the fourth coil N4 is connected to pin 8 and pin 9, and the ending winding end of the fourth coil N4 is connected to pin 10 and pin 11.

[0023] A magnetic core air gap is provided on the magnetic core 200 close to the first end of the horizontal transformer skeleton 100.

[0024] A high-temperature tape 700 is pasted above the pins of the horizontal transformer skeleton 100 at the bottom of the magnetic core 200 to prevent high temperature from damaging the magnetic core during soldering of the pins.

[0025] The heat-dissipating metal cover 300 is clamped between the two magnetic cores 200, and the inner side wall of the heat-dissipating metal cover 300 is closely attached to the horizontal transformer skeleton 100 and the magnetic core 200. Specifically: The heat-dissipating metal cover 300 includes a rectangular metal top plate 301. At both ends of the metal top plate 301, a pair of checkmark-shaped (i.e., "√"-shaped) metal clip pieces 302 are provided, and the two magnetic cores 200 are clamped between the two metal clip pieces 302; on both sides of the metal top plate 301, a metal wing plate 303 is provided respectively.

[0026] A fixing glue point 500 is bonded at the bottom of the butt joint of the two magnetic cores 200, and a moisture-proof glue point 600 is bonded between the bottom of one of the magnetic cores 200 and the horizontal transformer skeleton 100.

[0027] Clamp two magnetic cores with metal clips at both ends of the heat-dissipating metal cover, and bond and fix glue points at the bottom of the butt joint of the two magnetic cores for fixation. There is no need to wind insulating tape outside the two magnetic cores, which is beneficial to the heat dissipation of the magnetic cores. Moreover, the heat-dissipating metal cover is in direct contact with the magnetic cores, increasing the heat dissipation area of the magnetic cores; a moisture-proof glue point is bonded between the bottom of one magnetic core and the horizontal transformer skeleton, which not only fixes the magnetic core and the horizontal transformer skeleton, but also plays a role in moisture-proofing.

[0028] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited by the above embodiments. The above embodiments and the descriptions in the specification only illustrate the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention will have various changes and improvements, and these changes and improvements all fall within the scope of the present invention claimed.

Claims

1. A moisture-proof and heat-dissipating high-frequency transformer, characterized in that: It includes a horizontal transformer skeleton, two "E"-shaped magnetic cores, and a heat dissipation metal cover. Multiple groups of coils are wound on the horizontal transformer skeleton. The central columns of the two magnetic cores are inserted into the horizontal transformer skeleton from both ends of the horizontal transformer skeleton respectively; the heat dissipation metal cover is clamped on the two magnetic cores, and the inner side wall of the heat dissipation metal cover is closely attached to the horizontal transformer skeleton and the magnetic cores; fixed glue dots are bonded at the bottom of the butt joint of the two magnetic cores, and moisture-proof glue dots are bonded between the bottom of one of the magnetic cores and the horizontal transformer skeleton.

2. The moisture-proof and heat-dissipating high-frequency transformer according to claim 1, wherein: A high-temperature tape is pasted above the pins of the horizontal transformer skeleton at the bottom end of the magnetic core.

3. The moisture-proof and heat-dissipating high-frequency transformer according to claim 1, wherein: Pin 1, Pin 2, Pin 3, Pin 4, Pin 6, and Pin 7 are provided at the first end of the horizontal transformer skeleton, and Pin 8, Pin 9, Pin 10, Pin 11, Pin 13, and Pin 14 are provided at the second end of the horizontal transformer skeleton.

4. The moisture-proof and heat-dissipating high-frequency transformer according to claim 3, wherein: There are four groups of coils. The four groups of coils are the first coil, the second coil, the third coil, and the fourth coil in sequence. The starting end of the first coil is connected to Pin 1 and Pin 2, and the ending end of the first coil is connected to Pin 3 and Pin 4; the starting end of the second coil is connected to Pin 7, and the ending end of the second coil is connected to Pin 6; the starting end of the third coil is connected to Pin 13, and the ending end of the third coil is connected to Pin 14; the starting end of the fourth coil is connected to Pin 8 and Pin 9, and the ending end of the fourth coil is connected to Pin 10 and Pin 11.

5. The moisture-proof and heat-dissipating high-frequency transformer according to claim 3, wherein: A magnetic core air gap is provided on the magnetic core near the first end of the horizontal transformer skeleton.

6. The moisture-proof and heat-dissipating high-frequency transformer according to claim 1, characterized in that: The heat dissipation metal cover includes a rectangular metal top plate. A pair-shaped metal clip is provided at each end of the metal top plate. The two magnetic cores are clamped between the two metal clips; a metal wing plate is provided on each side of the top plate.

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