Inductor capable of resisting high-frequency vibration

Abstract

The utility model relates to the technical field of inductors, in particular to an inductor capable of resisting high-frequency vibration. The inductor resistant to high-frequency vibration comprises a framework, the framework comprises a framework body and a framework cover, a containing groove is formed in the framework body, and a magnetic core is arranged in the containing groove; the outer wall of a notch of the accommodating groove is thinned to form a first mounting edge; a second mounting edge is formed on the edge of the framework cover; the framework cover covers the framework main body; the first installation edge abuts against the second installation edge, and the first installation edge abuts against the inner top wall of the framework cover. When the framework body and the framework cover are closed in a covering mode, the first installation edge abuts against the second installation edge, the first installation edge abuts against the inner wall of the framework cover, a gap between the framework body and the framework cover can be adjusted to the position of the inner top wall of the framework cover through the design, a magnetic core in the framework cannot rub or collide with the gap, and therefore the magnetic core is protected. In addition, according to the design, the creepage distance between the magnetic core and the outside is increased, and the safety of the inductor is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to inductance technical field especially is a kind of inductance of resistance high-frequency vibration. BACKGROUND

[0002] Inductance is one of common electronic components, and is widely used in various electrical appliances. The magnetic core of some inductances on the market will be assembled in the shell for protecting the magnetic core. The shell is usually composed of a shell body and a shell cover, and the shell cover covers the shell body. After part of the shell body and the shell cover are covered, a gap is formed between the two, and such a gap can rub or collide with the magnetic core in a high-frequency vibration environment, which can damage the magnetic core.

[0003] For example, the horizontal annular inductor and power supply device disclosed in Chinese patent application No. CN201920025415.2 specifically discloses that the framework includes a first shell and a second shell, the first shell has a first open end, the second shell is fixedly connected with the support seat by integrated molding, welding or bolt connection, etc., the second shell has a second open end, and the second open end is buckled with the first open end, so that the accommodating cavity is formed by the first shell and the second shell. After the first shell and the second shell are covered, a gap is formed between the two, and such a gap can rub or collide with the magnetic core in a high-frequency vibration environment, which can damage the magnetic core.

[0004] For another example, the new annular inductor disclosed in Chinese patent application No. CN201720473741.0 specifically discloses that the inductor body includes an annular magnetic core, an upper shell and a lower shell covering the upper and lower sides of the annular magnetic core, and the upper and lower shells completely wrap the annular magnetic core inside. After the upper shell and the lower shell are covered, a gap is formed between the two, and such a gap can rub or collide with the magnetic core in a high-frequency vibration environment, which can damage the magnetic core. UTILITY MODEL CONTENTS

[0005] Therefore, the utility model provides an inductance resistant to high-frequency vibration, which can prevent the gap between the framework cover and the framework body from rubbing or colliding with the magnetic core when the two are covered, thereby protecting the magnetic core and overcoming the shortcomings of the prior art.

[0006] To achieve the above-mentioned purpose, the utility model adopts the following technical solutions:

[0007] The application provides an inductance resistant to high-frequency vibration, comprising a framework, the framework comprising a framework main body and a framework cover, a containing groove is arranged in the framework main body, and a magnetic core is arranged in the containing groove; the groove mouth outer wall of the containing groove is thinned to form a first mounting edge; the edge of the framework cover forms a second mounting edge; the framework cover is covered on the framework main body; the first mounting edge is abutted against the second mounting edge, and the first mounting edge is abutted against the inner top wall of the framework cover.

[0008] Preferably, a first adhesive is arranged between the inner wall of the containing groove and the magnetic core.

[0009] Preferably, a through hole is arranged in the middle part of the framework, a first positioning seat is formed on the hole wall of the through hole, a first positioning plate is inserted in the first positioning seat, and a first limiting part on the first positioning plate is blocked by the first positioning seat.

[0010] Preferably, a first positioning notch is arranged on the framework main body, and a first positioning block is arranged on the framework cover and embedded in the first positioning notch.

[0011] Preferably, the framework is arranged on a base, the base is provided with a pin hole, a second limiting block and a support, the mounting seat on the framework is embedded between the second limiting blocks, the pin of the coil is led out from the pin hole, and the support is arranged above the base.

[0012] Preferably, a support plate is formed on the framework and is pressed on the trapezoidal second limiting block.

[0013] Preferably, a first step is further formed on the groove mouth outer wall of the containing groove, the second mounting edge is abutted against the first step, and sealing glue is coated between the first mounting edge, the first step and the second mounting edge.

[0014] Preferably, a third limiting block in the shape of a fan ring is arranged on the inner wall of the framework cover, and the first mounting edge is embedded between the third limiting block and the second mounting edge.

[0015] Preferably, the third limiting blocks are distributed at equal angles on the inner wall of the framework cover, and the radian of the third limiting blocks is between 90-160°.

[0016] Preferably, the magnetic core is a nanocrystalline magnetic core, and a coil is wound on the framework, the coil is a copper wire wrapped with insulating paint.

[0017] The utility model discloses an obvious advantage and beneficial effect compared with prior art, specifically speaking, the magnetic core is arranged in the framework. When the framework main body and the framework cover are closed, the first installation edge and the second installation edge are abutted, and the first installation edge is abutted to the inner wall of the framework cover, and the design makes the gap between the framework main body and the framework cover be adjusted to the inner top wall position of the framework cover, and the magnetic core in the framework does not have friction or collision with the gap, and therefore the magnetic core is protected. In addition, the design also lengthens the creepage distance between the magnetic core and the outside, and improves the inductance safety. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 It is the whole schematic diagram of the embodiment of the utility model.

[0019] Figure 2 It is the exploded schematic diagram of the embodiment of the utility model.

[0020] Figure 3 It is the exploded schematic diagram of the embodiment of the utility model.

[0021] Figure 4 It is the side view schematic diagram of the embodiment of the utility model.

[0022] Figure 5 It is the B_B cross section schematic diagram of the embodiment of the utility model.

[0023] Figure 6 It is the C_C cross section schematic diagram of the embodiment of the utility model.

[0024] Brief description of drawings:

[0025] 10, framework, 11, through hole, 12, first positioning seat, 13, coil, 14, pin, 15, support plate, 110, framework main body, 111, containing groove, 112, magnetic core, 113, first installation edge, 114, first step, 115, first positioning notch, 120, framework cover, 121, second installation edge, 122, first positioning block, 123, first positioning plate, 124, first limiting portion, 130, base, 131, pin hole, 132, second limiting block, 133, support, 135, third limiting block. DETAILED DESCRIPTION

[0026] In order to further illustrate the technical means and effects of the utility model for realizing the predetermined utility model purposes, the following will be combined with the preferred embodiments, and the specific embodiments, structures, features and effects of the utility model will be described in detail as follows.

[0027] Please refer to Figures 1 to 6 The specific structure of the preferred embodiment of the utility model is shown, and it is an inductance resistant to high-frequency vibration.

[0028] The gap after the cover of the skeleton main body 110 and the skeleton cover 120 is arranged on the inner top wall of the skeleton cover 120, so that the gap does not affect the magnetic core 112, and the magnetic core 112 is well protected and does not have the problem of damage.

[0029] The application provides an inductance resistant to high-frequency vibration, comprising a skeleton, the skeleton comprising a skeleton main body 110 and a skeleton cover 120, the skeleton main body 110 is provided with a containing groove 111, and the containing groove 111 is provided with a magnetic core 112; the groove mouth outer wall of the containing groove 111 is thinned to form a first mounting edge 113; the edge of the skeleton cover 120 forms a second mounting edge 121; the skeleton cover 120 is covered on the skeleton main body 110; the first mounting edge 113 is abutted with the second mounting edge 121, and the first mounting edge 113 is abutted on the inner top wall of the skeleton cover 120. The groove mouth outer wall of the containing groove 111 is further provided with a first step 114. The skeleton main body 110 and the skeleton cover 120 are made of insulating materials, which can be made of ABS plastic or polyethylene plastic or polyvinyl chloride plastic. During assembly, the magnetic core 112 is adhered with a first adhesive, and then is assembled into the containing groove 111. The first adhesive is insulating, and can adhere the magnetic core 112 to the inner wall of the containing groove 111, so that the magnetic core 112 is prevented from shaking. The first adhesive can be one of epoxy resin glue, silicone glue and hot melt glue. When the skeleton cover 120 is covered on the skeleton main body 110, the first mounting edge 113 is pressed on the inner top wall of the skeleton cover 120, the second mounting edge 121 is pressed on the first step 114, and the inner top arm of the skeleton cover 120 limits the top of the magnetic core 112. Therefore, when the magnetic core 112 is in the cavity of the skeleton, the gap between the skeleton cover 120 and the skeleton main body 110 is adjusted to the position of the inner top wall of the skeleton cover 120, and the magnetic core 112 is not affected, so that the magnetic core 112 is not broken or chipped due to high-frequency vibration, and the safety of the magnetic core 112 is better. When the skeleton cover 120 is covered on the skeleton main body 110, sealing glue is applied between the first mounting edge 113, the first step 114 and the second mounting edge 121, so that the sealing performance is improved, and the skeleton cover 120 is more firmly covered on the skeleton main body 110. The sealing glue can be epoxy resin glue, polyurethane glue and the like.

[0030] Preferably, the middle part of the skeleton 10 is provided with a through hole 11, and a first positioning seat 12 is formed on the hole wall of the through hole 11; a first positioning plate 123 is inserted into the first positioning seat 12; and a first limiting part 124 on the first positioning plate 123 is stopped by the first positioning seat 12. The magnetic core 112 in the embodiment is annular. The first positioning seat 12 is provided with an insertion interface, and the edge of the first positioning plate 123 is inserted into the insertion interface, and the first limiting part 124 on the first positioning plate 123 is stopped by the first positioning seat 12, so that the skeleton main body 110 and the skeleton cover 120 cannot rotate relative to each other, and the assembly of the two is more integral and more firm. The first positioning plate 123 also plays a role of separating the coil 13 group, which facilitates winding.

[0031] Preferably, the skeleton main body 110 is provided with a first positioning notch 115; the skeleton cover 120 is provided with a first positioning block 122, and the first positioning block 122 is embedded in the first positioning notch 115. After the skeleton main body 110 and the skeleton cover 120 are assembled, the first positioning block 122 is embedded in the first positioning notch 115, so that the firmness of the assembly of the two is improved, and the structural strength is also better.

[0032] The skeleton 10 is arranged on a base 130, and the base 130 is provided with a pin hole 131, a second limiting block 132 and a support 133; the mounting seat on the skeleton 10 is embedded between the second limiting blocks 132, the pin 14 of the coil 13 passes out of the pin hole 131, and the support 133 is arranged above the base 130. The skeleton 10 is provided with a support plate 15, and the support plate 15 is pressed on the trapezoidal second limiting blocks 132. The skeleton 10 can be fixed on the base 130 by using glue or screws. When the skeleton 10 is fixed on the base 130, the bottom of the mounting seat is embedded between the second limiting blocks 132, the second limiting blocks 132 are trapezoidal, the skeleton 10 can be positioned on the base 130 very conveniently, and can be firmly assembled on the base 130. The support 133 is arranged above the base 130, so that better welding space can be provided for the pin 14, and the installation of the base 130 is facilitated.

[0033] Preferably, the inner wall of the skeleton cover 120 is provided with a third limiting block 135 in the shape of a fan ring; and the first mounting edge 113 is embedded between the third limiting block 135 and the second mounting edge 121. The third limiting block 135 can limit the top of the magnetic core 112, and a gap is formed on the upper side of the magnetic core 112, which does not affect the magnetic core 112. The third limiting block 135 and the second mounting edge 121 can limit the position of the first mounting edge 113, and also play a role of installation.

[0034] Preferably, the third limiting blocks 135 are equiangularly distributed on the inner wall of the skeleton cover 120; the arc of the third limiting blocks 135 is between 90-160°. In the embodiment, there are two third limiting blocks 135, which are symmetrically distributed. The arc of the third limiting blocks 135 is preferably 60° or 120°.

[0035] Preferably, the magnetic core 112 is a nanocrystalline magnetic core 112; and a coil 13 is wound on the skeleton, the coil 13 being a copper wire wrapped with insulating paint. The nanocrystalline magnetic core 112 is a kind of super-microstructure iron-based soft magnetic alloy material, which is well-known for its high magnetic permeability, low loss and other excellent soft magnetic properties. The coil 13 is flexible and has an insulating skin on the outer surface, which is safe.

[0036] In summary, when the skeleton main body 110 and the skeleton cover 120 are closed, the first mounting edge 113 abuts against the second mounting edge 121, and the first mounting edge 113 abuts against the inner wall of the skeleton cover 120. This design adjusts the gap between the skeleton main body 110 and the skeleton cover 120 to the inner top wall of the skeleton cover 120, so that the magnetic core 112 in the skeleton does not rub or collide with the gap, thereby protecting the magnetic core 112. This design also lengthens the creepage distance between the magnetic core 112 and the outside, thereby improving the inductance safety.

[0037] The above is only a preferred embodiment of the present application, and does not limit the present application in any form. Although the present application has been disclosed as above, it is not intended to limit the present application. Any person skilled in the art can make some changes or modifications to the above disclosed technical content to obtain equivalent embodiments with equivalent changes, without departing from the technical solution of the present application. Any modification, equivalent change and modification of the above embodiments, which does not depart from the technical solution of the present application, is still within the scope of the present application.

Claims

1. A high-frequency vibration-resistant inductor, characterized by: The skeleton comprises a skeleton body and a skeleton cover, the skeleton body is provided with a containing groove, and the containing groove is provided with a magnetic core; the groove mouth outer wall of the containing groove is thinned to form a first mounting edge; the edge of the skeleton cover forms a second mounting edge; the skeleton cover covers the skeleton body; the first mounting edge is opposite to the second mounting edge, and the first mounting edge is opposite to the inner top wall of the skeleton cover.

2. An inductor resistant to high frequency vibrations according to claim 1, characterized in that: A first adhesive is arranged between the inner wall of the containing groove and the magnetic core.

3. The high-frequency vibration-resistant inductor according to claim 1, characterized by: A through hole is arranged in the middle of the skeleton, a first positioning seat is formed on the hole wall of the through hole, a first positioning plate is inserted into the first positioning seat, and a first limiting part on the first positioning plate is blocked by the first positioning seat.

4. The high-frequency vibration-resistant inductor according to claim 1 or 3, characterized by: A first positioning notch is arranged on the skeleton body, and a first positioning block is arranged on the skeleton cover and embedded in the first positioning notch.

5. The high-frequency vibration-resistant inductor according to claim 1, wherein: The skeleton is arranged on a base, the base is provided with a pin hole, a second limiting block and a support, the mounting seat on the skeleton is embedded between the second limiting blocks, the pin of the coil is led out from the pin hole, and the support is arranged above the base.

6. An inductor resistant to high frequency vibrations according to claim 5, characterized in that: A support plate is formed on the skeleton and is pressed on the trapezoidal second limiting block.

7. The high-frequency vibration-resistant inductor of claim 1, wherein: The groove mouth outer wall of the containing groove is further provided with a first step, and the second mounting edge is opposite to the first step; the first mounting edge, the first step and the second mounting edge are coated with sealing glue.

8. The high-frequency vibration-resistant inductor of claim 1, wherein: The inner wall of the skeleton cover is provided with a third limiting block in the shape of a fan ring; the first mounting edge is embedded between the third limiting block and the second mounting edge.

9. An inductor resistant to high frequency vibrations according to claim 8, characterized in that: The third limiting blocks are equiangularly distributed on the inner wall of the skeleton cover, and the curvature of the third limiting blocks is between 90-160°.

10. The high-frequency vibration-resistant inductor of claim 1, wherein: The magnetic core is a nanocrystalline magnetic core; and a coil is wound on the skeleton, and the coil is a copper wire wrapped with insulating paint.

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