Integrated assembled TLVR inductor

Abstract

The utility model provides an integrated assembly type TLVR inductor which comprises a frame, a containing groove is formed in the frame, and at least two bosses are arranged in the containing groove. The cover plate covers the frame so as to seal the accommodating groove; the at least two primary windings are arranged in the accommodating groove, so that each primary winding respectively surrounds the corresponding boss to be positioned; and the secondary winding is arranged in the accommodating groove, so that the secondary winding simultaneously surrounds the outer sides of the two primary windings, and the secondary winding is supported by abutting against the edge of the outer side of the accommodating groove. Therefore, the functions of a plurality of TLVR inductors can be integrated, the design of the whole circuit is simplified, and the structure of the circuit is simpler and more stable.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the inductor technical field, especially, a kind of integrated assembly type TLVR inductor that the function of multiple TLVR inductors can be integrated, and the design of overall circuit is simplified. BACKGROUND

[0002] Trans-Inductor Voltage Regulator (TLVR) system is a kind of circuit, and the purpose of the circuit is to correct voltage transient and reduce ripple rate and the like, and the key of the circuit is TLVR inductor, which basically includes primary winding and secondary winding, makes both sides winding erect on the same frame, and the coil ratio of primary winding and secondary winding is 1:1, can realize extremely fast transient response mechanism, to achieve correction voltage transient and reduce ripple rate and the like, improve the reliability of circuit.

[0003] And the structure of the known existing TLVR inductor is as shown in Figure 7 The primary winding 300' is positioned around the boss 120', and the secondary winding 400' is positioned outside the primary winding 300' and abuts against the edge outside the accommodating groove 110'.

[0004] However, in terms of existing TLVR inductor, single TLVR inductor is currently used to complete the design of one-phase circuit. In other words, if it is an eight-phase circuit, eight single TLVR inductors are needed to complete the design of overall circuit, which increases the complexity of circuit design. Moreover, single TLVR inductor occupies more setting area, and has more welding points, which also makes the operation of system more unstable.

[0005] Therefore, the design of existing TLVR inductor is still not perfect, and it is easy to cause loss or harm due to short circuit accident, and further improvement is needed to meet the requirements of practicality.

[0006] In view of the foregoing problems, the utility model creator starts research and improvement according to the shortcomings of existing inductor device, and finally completes the inductor device with short-circuit-proof structure which is easy to operate and meets environmental protection requirements through repeated experiments and corrections. UTILITY MODEL CONTENTS

[0007] The utility model discloses a kind of integrated assembly type TLVR inductors, wherein multiple primary windings are provided in a single frame, to replace the complexity of multiple existing TLVR inductors in circuit design, make the design of overall circuit cleaner, more concise.

[0008] Another purpose of the utility model is to provide a kind of integrated assembly type TLVR inductor, which reduces the number of TLVR inductors on the overall circuit and reduces the welding points, making the circuit structure safer and more stable, reducing the risk of failure, and also increasing the service life of the circuit.

[0009] Still another purpose of the utility model is to provide a kind of integrated assembly type TLVR inductor, which effectively simplifies the design of the circuit and can significantly reduce the size of the circuit design to improve the application range of the product.

[0010] The integrated assembly type TLVR inductor of the utility model that can achieve the above purposes mainly includes a frame, a cover plate, a primary winding and a secondary winding.

[0011] The frame is internally provided with a receiving groove, and at least two bosses are provided in the receiving groove.

[0012] The cover plate covers the frame to close the receiving groove.

[0013] The primary winding is provided with at least two in cooperation with the bosses, and each primary winding is positioned around the opposite bosses in the receiving groove.

[0014] The secondary winding is provided in the receiving groove, so that the secondary winding is simultaneously wrapped outside the two primary windings, and the secondary winding is supported against the edge outside the receiving groove.

[0015] Preferably, the structure and size of each primary winding and the boss in the frame are the same.

[0016] Preferably, the frame, the cover plate and the boss are formed by ferrite high pressure forming, and the magnetic permeability coefficient of ferrite is between 1200 and 2000.

[0017] Preferably, the frame, the cover plate and the boss are formed by reduced iron high pressure forming, and the magnetic permeability coefficient of reduced iron is between 50 and 100.

[0018] Preferably, the primary winding and the secondary winding are formed by flat enameled wire coating to prevent the problem of electric leakage.

[0019] Preferably, the surface of the receiving groove is sprayed with an insulating paint layer to prevent the problem of electric leakage.

[0020] Preferably, the soldering leg of the secondary winding is bent at 93°-95°. BRIEF DESCRIPTION OF DRAWINGS

[0021] Figure 1 is a perspective exploded view of the integrated assembled TLVR inductor of the present application;

[0022] Figure 2 is a perspective assembled view of the integrated assembled TLVR inductor;

[0023] Figure 3 is a plan view of the integrated assembled TLVR inductor after removing the cover plate;

[0024] Figure 4 is a perspective exploded view of the second embodiment of the integrated assembled TLVR inductor;

[0025] Figure 5 is a perspective assembled view of the second embodiment of the integrated assembled TLVR inductor;

[0026] Figure 6 is a plan view of the second embodiment of the integrated assembled TLVR inductor after removing the cover plate; and

[0027] Figure 7 is a plan view of the integrated assembled TLVR inductor when a short circuit accident occurs during assembling.

[0028] BRIEF DESCRIPTION OF DRAWINGS

[0029] 100, 100': frame;

[0030] 110, 110': accommodating groove;

[0031] 120, 120': boss;

[0032] 130: insulating paint layer;

[0033] 200: cover plate;

[0034] 300, 300': primary winding;

[0035] 400, 400': secondary winding;

[0036] 410: soldering leg. DETAILED DESCRIPTION

[0037] The preferred embodiments of the present application will be described in detail below with reference to the accompanying drawings, so that the advantages and features of the present application can be more easily understood by those skilled in the art, and the scope of protection of the present application can be more clearly defined.

[0038] Please refer to Figures 1 to 3The utility model provides a kind of integrated assembled TLVR inductance, it mainly includes frame 100, cover plate 200, primary winding 300 and secondary winding 400.

[0039] The frame is internally provided with accommodating groove 110, for accommodating the primary winding 300 and the secondary winding 400, the accommodating groove 110 is provided with boss 120, to surround the primary winding 300 on the boss 120, then the secondary winding 400 is surrounded outside the primary winding 300, form the design that the primary winding 300 is outside the frame 100, the secondary winding 400 is inside the frame 100, finally the cover plate 200 is covered on the frame 100, to close the accommodating groove 110, form complete TLVR inductance structure.

[0040] The boss 120 is simultaneously provided with two in the frame 100, and two the primary winding 300 are provided with two the boss 120, so that each the primary winding 300 is positioned around the opposite boss 120. The secondary winding 400 is arranged in the accommodating groove 110, so that the secondary winding 400 is simultaneously surrounded outside two the primary winding 300, and the secondary winding 400 is supported against the edge outside the accommodating groove 110.

[0041] Therefore, the primary winding 300 and the secondary winding 400 are inducted, and the inductance value of the secondary winding 400 is equal to the inductance value of two the primary winding 300 added together, because the primary winding 300 is provided with two the boss 120.

[0042] Usually, the structure and size of each the primary winding 300 and the boss 120 in the frame 100 are the same, to facilitate the calculation and configuration of inductance value.

[0043] In actual design, to prevent the saturation value of inductance from decreasing too much, the frame 100, the cover plate 200 and the boss 120 are made of ferrite or reduced iron high-pressure forming. If it is ferrite, the magnetic permeability is between 1200 and 2000. If it is reduced iron, the magnetic permeability is between 50 and 100.

[0044] In addition, to prevent the problem of electric leakage between the primary winding 300 and the secondary winding 400, the primary winding 300 and the secondary winding 400 can be covered by flat enameled wire (not shown in the figure).

[0045] Alternatively, an insulating paint layer 130 can be sprayed on the surface of the accommodating groove 110 to prevent electric leakage, but it should be noted that the insulating paint layer 130 cannot be sprayed on the joint surface of the frame 100 and the cover plate 200, which is to prevent the instability of inductance value.

[0046] Furthermore, when the secondary winding 400 is soldered to the circuit board, it is easy to slide due to the tension of the tin paste after high-temperature liquefaction, which affects the soldering effect. Therefore, the soldering leg 410 at the bottom of the secondary winding 400 is designed to be bent, and the bending angle is between 93° and 95°, which increases the effectiveness of soldering.

[0047] Please refer to Figures 4 to 6 As shown in another embodiment of the present application, the primary winding 300 and the boss 120 are provided with three, so that the width size of the TLVR inductor can be greatly reduced, further reducing the number of soldering points, so that the reliability of the related circuit is higher. Of course, when the size allows, the primary winding 300 and the boss 120 are also provided with more than three, which can play a better function.

[0048] The above embodiments are only for illustrating the technical concept and characteristics of the present application, and the purpose is to enable those skilled in the art to understand the content of the present application and implement it, and cannot limit the protection scope of the present application. Any equivalent changes or modifications made according to the spirit and essence of the present application shall be covered within the protection scope of the present application.

Claims

1. An integrated assembled TLVR inductor, characterized in that, The utility model relates to a kind of high-voltage transformer, including have; Frame, the frame inside is provided with accommodating slot, at least two bosses are provided in the accommodating slot; Cover, cover is closed in the frame to close the accommodating slot; At least two primary windings are positioned in the accommodating slot, so that each primary winding is positioned around the opposite boss respectively; And Secondary winding is positioned in the accommodating slot, so that the secondary winding is simultaneously around two primary windings outside, and the secondary winding is supported by the edge outside the accommodating slot.

2. The integrated assembled TLVR inductor of claim 1, wherein, Each primary winding in the frame is same with the structure and size of the boss.

3. The integrated assembled TLVR inductor of claim 1, wherein, The frame, the cover and the boss are formed by ferrite high pressure, and the permeability of ferrite is between 1200 and 2000.

4. The integrated assembled TLVR inductor of claim 1, wherein, The frame, the cover and the boss are formed by reduced iron high pressure, and the permeability of reduced iron is between 50 and 100.

5. The integrated assembled TLVR inductor of claim 1, wherein, The primary winding and the secondary winding are covered by flat enameled wire, to prevent the problem of electric leakage.

6. The integrated assembled TLVR inductor of claim 1, wherein, The surface of the accommodating slot is sprayed with insulating paint layer to prevent the problem of electric leakage.

7. The integrated assembled TLVR inductor of claim 1, wherein, The welding foot of the secondary winding is bent between 93 ° and 95 °.

Images