Flyback Transformer Core Holder

专利摘要:
To provide a core holder of a flyback transformer that prevents the bond injected into the inner circumference of the core holder from leaking to the outer circumference of the housing, thereby making the core fixed and the outer circumference of the flyback transformer improved. On the inner circumferential surface of the opening side of the housing 2 of the core holder 10, a protrusion 24 having a small width protrudes so as to contact the outer circumference of the cores 7 and 8, and a guide ( 22 is formed to protrude so as to contact the outer periphery of the core (7) (8) to form a chamfered protruding edge.
公开号:KR19980061738A
申请号:KR1019960081113
申请日:1996-12-31
公开日:1998-10-07
发明作者:홍승방
申请人:서두칠；대우전자부품 주식회사；
IPC主号:

专利说明:

Flyback Transformer Core Holder
The present invention relates to a core holder of a flyback transformer, and more particularly, to prevent the bond injected into the inner circumference of the core holder from leaking to the outer circumference of the housing, thereby making the core fixed and the appearance of the flyback transformer A core holder of a flyback transformer that enables to be improved.
The flyback transformer is a device that generates high pressure by using pulses generated during the return period of the horizontal deflection output in the cathode ray tube. The configuration of the flyback transformer is filled and sealed with epoxy resin by overlapping the high pressure bobbin and the low pressure bobbin inside the housing. In order to suppress power loss due to magnetization caused by the high pressure bobbin and the low pressure bobbin, which are overlapped as described above, a pair of cores are inserted and installed from the core insert portion of the low pressure bobbin over the outside of the housing. A focus pack that can variably adjust the voltage required to adjust the screen focus of the cathode ray tube is arranged on one side of the housing of the flyback transformer.
3 is a perspective view of a conventional flyback transformer.
The high pressure bobbin (not shown) and the low pressure bobbin 4 are overlapped in the housing 2 of the flyback transformer, and the core mounting hole 5 is provided at a predetermined position on the outer circumference opposite to the opening of the housing 2. Formed.
And the core holder 10 formed in the outer periphery of the said housing 2 with the dimension corresponding to the dimension of the outer periphery of the core 7 and 8 is integrally injection-molded.
A core insertion hole 16 is formed in the inner circumference of the low pressure bobbin 4, and the low pressure bobbin described above in the housing 2 is defined at an opening side end portion of the housing 2 of the core insertion hole 16. In addition to fixing (4), the protruding wall 20 defining the core inserting tool 18 extends to a predetermined position corresponding to the end of the housing 2.
After combining the high pressure bobbin and the low pressure bobbin 4, which are overlapped as described above, with the housing 2, the core insertion port 18, the core insertion hole 16, and the housing 2 of the low pressure bobbin 4 described above. A pair of cores 7 and 8, which are bisected in a 'c' shape over the outer circumference of the core and the inner circumference of the core holder 10, is mounted.
As described above, the coupling surface of the pair of cores 7 and 8 formed into two halves is inserted into the inner circumference of the core holder 10, and the cores 7 and 8 are formed on the inner circumference of the core holder 10. Inject the bond to fix it.
In the conventional core fixing structure as described above, when injecting the bond into the inner circumference of the core holder 10, the flyback transformer is inclined so that the opening of the housing 2 faces downward, so that the core is injected. The bond injected into the inner circumference of the holder 10 leaks to the outer circumference of the housing 2, so that the fixed state of the cores 7 and 8 does not become rigid, which causes the cores 7 and 8 to become the housing ( 2) it is displaced or flows out of the outer circumference of 2), and the suppression of power loss due to the magnetization of the low pressure bobbin 4 and the high pressure bobbin, which is the purpose of mounting the cores 7 and 8, becomes poor, resulting in poor electrical characteristics of the flyback transformer. There was a problem.
In addition, there is a problem in that the appearance of the flyback transformer becomes poor due to the bond leaked from the inner circumference of the core holder 10 to the outer circumference of the housing 2.
Accordingly, an object of the present invention is to solve the above-mentioned problems, to securely fix the core inserted into the inner circumference of the core holder, so that the bond injected into the inner circumference of the core holder does not leak to the outer circumference of the housing, An object of the present invention is to provide a core holder of a flyback transformer, which can improve the appearance of the flyback transformer.
According to the present invention for realizing the above object, a guide for mounting the core is protruded to contact the outer circumference of the core on the inner circumferences of the left and right opposing surfaces of the core holder, and the guide is not formed on the inner circumference of the opening side of the housing of the core holder. It is spherical in the structure which protruded in the same height as the said guide, and the processus | protrusion having a small width | variety on the non-surface.
In the present invention as described above, the core is easily inserted into the inner circumference of the core holder, and the bond injected into the inner circumference of the core holder by the projections does not leak to the outer circumference of the housing.
1a is a perspective view of a core holder according to the present invention;
1B is a cross-sectional view taken along the line A-A of FIG. 1A.
Figure 2 is a side view showing a state in which the core is mounted in accordance with the present invention.
3 is a perspective view showing a conventional flyback transformer;
Explanation of symbols on the main parts of the drawings
2: housing 4: low pressure bobbin
5 core mounting hole 7, 8 core
10 core holder 16 core insertion hole
18 core insertion port 20 protrusion wall
22: guide 24: protrusion
25, 26: core 28: core holder
30: guide groove 36: elastic projection
38: guide wall 40: fixing projection
Preferred embodiments of the present invention configured as described above will be described in detail with reference to the accompanying drawings. In this embodiment, the same reference numerals as the parts described with reference to FIG. 3 are denoted by the same reference numerals to avoid duplication of explanation.
1A is a perspective view of a main part according to the present invention, and FIG. 1B is a sectional view taken along the line A-A of FIG. 1A.
As shown in FIG. 1A, a core 22 into which the guide 22 assisting the mounting of the core (shown in FIG. 2) is inserted into the inner circumference of the core holder 10. It is formed so as to contact the outer periphery of, and as shown in FIG. 1B, the inner periphery of the opening of the housing of the core holder 10 (shown in FIG. 2) has a small width on the surface where the guide 22 is not formed. The protrusion 24 protrudes to the same height as the guide 22 described above.
2 is a perspective view showing a core fixing structure according to the present invention.
The high pressure bobbin (not shown) and the low pressure bobbin 4 are overlapped inside the housing 2 of the flyback transformer, and a core mounting hole 5 is formed at a predetermined position on the outer circumference opposite to the opening of the housing 2, The core holder 10 is formed on the outer circumference of the housing 2.
In the outer circumferential predetermined position of the core mounting hole 5 side of the housing 2, the guide wall 38, on which the elastic protrusions 36 having elasticity are projected, is formed symmetrically so as to face each other. The formation height of the guide wall 38 is such that the elastic projection 36 is in contact with the outward surface of the core 7 and 8 mounted over the low pressure bobbin 4 and the housing 2 to receive maximum elasticity. Extending to a position.
A core insertion hole 16 is formed in the inner circumference of the low pressure bobbin 4, and the low pressure bobbin described above in the housing 2 is defined at an opening side end portion of the housing 2 of the core insertion hole 16. While fixing (4), the protruding wall 20 defining the core insertion hole 18 extends to a predetermined position corresponding to the end of the housing 2.
The protruding wall 20 has elasticity, and the fixing protrusion 40 protrudes at a predetermined position adjacent to the outward end of the opposing surface of the protruding wall 20, and the fixing protrusion ( The position of the position 40 is such that the core 8 inserted into the core insertion hole 18 of the low pressure bobbin 4 is firmly positioned without being moved by the bottom surface of the protruding wall 20 and the fixing protrusion 40. It is a predetermined point to make it possible.
The high-pressure bobbin and the low-pressure bobbin 4, which are arranged in the housing 2, are placed inside the housing 2, and the core insertion port 18, the core insertion hole 16, and the housing 2 of the low-pressure bobbin 4 are mounted. ) And a pair of cores 7 and 8 which are bisected in a 'c' shape over the outer circumference of the core holder 10 and the inner circumference of the core holder 10, and at this time, a guide formed on the inner circumference of the core holder 10. By the core 22, the cores 7 and 8 are easily inserted into the inner circumference of the core holder 10.
As described above, the flyback transformer on which the cores 7 and 8 are mounted is erected so that the opening of the housing 2 faces downward, and the bond is injected into the inner circumference of the core holder 10 to form a bisected core 7. (8) is firmly fixed.
At this time, the bond injected into the inner circumference of the core holder 10 is prevented from leaking to the outer circumference of the housing 2 by the protrusion (shown in FIG. 1B) formed on the inner circumference of the core holder 10.
Therefore, according to the present invention, the cores 7 and 8 are easily mounted and secured by the guides 22 and the protrusions 24 formed on the inner circumference of the core holder 10, and the bonds are formed on the outer circumference of the housing 2. Will not leak.
As described above, in the present invention, since the bond injected into the inner circumference of the core holder by the guide and the protrusion formed on the inner circumference of the core holder does not leak to the outer circumference of the housing, the core is firmly mounted, so that the core is separated from the outer circumference of the housing. The rate of failure of the electrical characteristics of the flyback transformer is greatly reduced, and the bond is not leaked to the outer circumference of the housing, thereby improving the appearance of the flyback transformer, and also formed on the inner circumference of the core holder. Since the guide can be easily inserted into the inner circumference of the core holder by the guide, there is an effect that the productivity is improved.

权利要求:
Claims (2)
[1" claim-type="Currently amended] In the core holder of the flyback transformer which applies an appropriate high pressure to a television,
A protrusion 24 having a small width is formed on the inner circumferential surface of the opening 2 of the housing 2 of the core holder 10 so as to contact the outer circumference of the cores 7 and 8, and the guide 22 is disposed on the left and right facing surfaces. The core holder of the flyback transformer, characterized in that it protrudes.
[2" claim-type="Currently amended] The method of claim 1, wherein the guide 22 is formed to protrude so as to contact the outer circumference of the core (7) (8) on the inner circumference of the right and left opposite surface of the core holder 10 to a predetermined width to form a chamfer The core holder of the flyback transformer characterized by the above-mentioned.

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同族专利:

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引用文献:

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公开号 | 申请日 | 公开日 | 申请人 | 专利标题

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法律状态:
1996-12-31|Application filed by 서두칠, 대우전자부품 주식회사

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1996-12-31|Priority to KR1019960081113A

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1998-10-07|Publication of KR19980061738A

优先权:

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申请号 | 申请日 | 专利标题

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KR1019960081113A|KR19980061738A|1996-12-31|1996-12-31|Flyback Transformer Core Holder|