CN221057247U

CN221057247U - Inductor(s)

Info

Publication number: CN221057247U
Application number: CN202323035618.5U
Authority: CN
Inventors: 请求不公布姓名
Original assignee: Shanghai Hugong Electric Group Co Ltd
Current assignee: Shanghai Hugong Electric Group Co Ltd
Priority date: 2023-11-10
Filing date: 2023-11-10
Publication date: 2024-05-31
Anticipated expiration: 2033-11-10

Abstract

The utility model belongs to the technical field of inductors, and discloses an inductor. The inductor comprises a framework, a coil wound on the framework, two iron cores and a fastener, wherein two rib plates are arranged on the outer side surfaces of two guard plates in the axial direction of the framework at intervals, and a plurality of fixing holes are formed in the rib plates; the two iron cores are respectively sleeved on two opposite side walls of the framework, each iron core is clamped between two rib plates on the two guard plates, the iron cores are provided with through holes, and the diameter of each through hole is larger than that of each fixing hole; the fastener can pass through the fixed hole, the through hole and the fixed hole of another gusset on the same backplate that coaxial setting was last in proper order to make two gusset clamp two iron cores on the same backplate, and have the space between fastener and the through hole. This inductor has improved the ratio of energy storage and loss through set up the space between fastener and through-hole, can prevent the circumstances that the skeleton fracture was damaged when the coil was wound through the setting of gusset, has improved dielectric strength safety index.

Description

Inductor(s)

Technical Field

The utility model relates to the technical field of inductors, in particular to an inductor.

Background

An inductor is a component that can convert electric energy into magnetic energy and store it. The inductor is similar in structure to a transformer but has only one winding. The inductor has a certain inductance, which only impedes the current variation. If the inductor is in a state where no current is passing, it will attempt to block the flow of current through it when the circuit is on; if the inductor is in a state where current is flowing, it will attempt to maintain the current unchanged when the circuit is open.

1) Because the frequency of the inversion product is high, the product volume is small, the insulation thickness of the window of the inductance skeleton is relatively thin, and the inductance skeleton is easy to crack and break when winding coils;

2) In conventional products, the core type inductor of the iron core assembly structure generally adopts bolts to position and fasten the iron core and the rib plates, and the cross section resistance of the silicon steel sheet is reduced due to the bolts, so that the iron core can generate extra loss, the ratio of energy storage to loss is reduced, and the negative effects are generated on improving the product performance and the product efficiency.

Therefore, there is a need to provide an inductor to solve the above-mentioned problems.

Disclosure of utility model

The utility model aims to provide an inductor which can increase the strength of an inductance skeleton, prevent an iron core from generating extra loss and improve the product efficiency.

To achieve the purpose, the utility model adopts the following technical scheme:

The device comprises a framework and coils wound on the framework, wherein two rib plates are arranged on the outer side surfaces of two guard plates in the axial direction of the framework at intervals, and a plurality of fixing holes are formed in the rib plates;

The two iron cores are respectively sleeved on two opposite side walls of the framework, each iron core is clamped between two rib plates on two guard plates, a through hole is formed in each iron core, and the diameter of each through hole is larger than that of each fixing hole;

The fastener can pass through the same coaxially set up one of the gusset on the backplate the fixed orifices, the through-hole with another of the gusset the fixed orifices, so that two of the gusset on the same backplate press from both sides tightly two the iron core, just the fastener with have the space between the through-hole.

Preferably, the inductor further comprises a fixing support, one end of the fixing support is connected with the rib plate on one guard plate, and the other end of the fixing support is connected with the rib plate on the other guard plate.

Preferably, the fixing support comprises a connecting plate and two support plates, one ends of the two support plates are respectively connected with two rib plates positioned on the same side of the guard plate, and the other ends of the two support plates are respectively connected with two ends of the connecting plate.

Preferably, the diameter of the fixing hole is 0.6mm to 1.4mm smaller than the diameter of the through hole.

Preferably, the height of the rib plate is greater than or equal to 0.5mm.

Preferably, the framework further comprises a column body, the guard plates are respectively arranged at two axial ends of the column body, the coil is wound on the column body, and the column body and the guard plates are integrally formed.

Preferably, the framework is a thermosetting plastic framework.

Preferably, the iron core comprises a plurality of iron core chip groups stacked, the iron core chip groups comprise two L-shaped iron core chips, two ends of the iron core chips are opposite to each other one by one so as to form an unclosed square shape, and an air gap is formed between two ends of the iron core chips opposite to each other.

Preferably, the air gaps are filled with insulating sheets.

Preferably, the fastening piece comprises a bolt and a nut, and the bolt sequentially passes through the fixing hole of one rib plate, the through hole and the fixing hole of the other rib plate on the same guard plate which are coaxially arranged and then is in threaded fit with the nut.

The beneficial effects are that:

According to the improved design of the inductor, the inductor comprises the framework, the coil wound on the framework, the two iron cores and the fastening piece, wherein two rib plates are arranged on the outer side surfaces of the two guard plates in the axial direction of the framework at intervals, and a plurality of fixing holes are formed in the rib plates, so that the strength of the framework can be increased, the situation that the framework is cracked and damaged when the coil is wound is prevented, the integrity of the framework is ensured, and the dielectric strength safety index is improved; the two iron cores are respectively sleeved on two opposite side walls of the framework, each iron core is clamped between two rib plates on the two guard plates, the iron cores are provided with through holes, and the diameter of each through hole is larger than that of each fixing hole; the fastener can pass the fixed orifices, the through-hole and the fixed orifices of another gusset on the same backplate of coaxial setting in proper order to make two gusset clamp two iron cores on the same backplate, and have the space between fastener and the through-hole, thereby with preventing fastener and the through-hole contact, thereby make to form good space between fastener and the through-hole insulating, thereby prevent that the iron core from producing extra loss, and can also prevent skeleton and iron core production not hard up, reduce the probability that the during operation produced the coil vibration.

Drawings

Fig. 1 is a front view of an inductor provided by an embodiment of the present utility model;

Fig. 2 is a side view of an inductor provided by an embodiment of the present utility model;

FIG. 3 is an enlarged view of a portion of FIG. 1 at A;

FIG. 4 is a front view of a bobbin and coil provided in an embodiment of the present utility model;

FIG. 5 is a side view of a bobbin and coil provided in an embodiment of the present utility model;

Fig. 6 is a front view of a core segment set provided in an embodiment of the present utility model;

FIG. 7 is a front view of a stationary bracket provided by an embodiment of the present utility model;

Fig. 8 is a top view of a fixing bracket according to an embodiment of the present utility model.

In the figure: 1. a skeleton; 11. a column; 12. a guard board; 13. rib plates; 131. a fixing hole; 2. an iron core; 21. iron core pieces; 22. an insulating sheet; 211. a through hole; 3. a fastener; 4. a fixed bracket; 41. a connecting plate; 42. a support plate; 100. a coil.

Detailed Description

The utility model is described in further detail below with reference to the drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the utility model and are not limiting thereof. It should be further noted that, for convenience of description, only some, but not all of the structures related to the present utility model are shown in the drawings.

In the description of the present utility model, unless explicitly stated and limited otherwise, the terms "connected," "connected," and "fixed" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.

In the present utility model, unless expressly stated or limited otherwise, a first feature "above" or "below" a second feature may include both the first and second features being in direct contact, as well as the first and second features not being in direct contact but being in contact with each other through additional features therebetween. Moreover, a first feature being "above," "over" and "on" a second feature includes the first feature being directly above and obliquely above the second feature, or simply indicating that the first feature is higher in level than the second feature. The first feature being "under", "below" and "beneath" the second feature includes the first feature being directly under and obliquely below the second feature, or simply means that the first feature is less level than the second feature.

In the description of the present embodiment, the terms "upper", "lower", "left", "right", and the like are orientation or positional relationships based on those shown in the drawings, merely for convenience of description and simplicity of operation, and do not indicate or imply that the apparatus or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the utility model. Furthermore, the terms "first," "second," and the like, are used merely for distinguishing between descriptions and not for distinguishing between them.

Fig. 1 shows a front view of an inductor provided by the present embodiment, fig. 2 shows a side view of the inductor provided by the present embodiment, fig. 3 shows a partially enlarged view of a shown in fig. 1, fig. 4 shows a front view of a bobbin 1 and a coil 100 provided by the present embodiment, and fig. 5 shows a side view of the bobbin 1 and the coil 100 provided by the present embodiment, as shown in fig. 1 to 5. The inductor comprises a framework 1, a coil 100 wound on the framework 1, two iron cores 2 and a fastener 3, wherein two rib plates 13 are arranged on the outer side surfaces of two guard plates 12 in the axial direction of the framework 1 at intervals, and a plurality of fixing holes 131 are formed in the rib plates 13; the two iron cores 2 are respectively sleeved on two opposite side walls of the framework 1, each iron core 2 is clamped between two rib plates 13 on the two guard plates 12, the iron cores 2 are provided with through holes 211, and the diameter of each through hole 211 is larger than that of each fixing hole 131; the fastener 3 can sequentially pass through the fixing hole 131, the through hole 211 and the fixing hole 131 of the other rib plate 13 of one rib plate 13 on the same guard plate 12 which are coaxially arranged, so that the two rib plates 13 on the same guard plate 12 clamp the two iron cores 2, and a gap is formed between the fastener 3 and the through hole 211.

The rib plates 13 can enhance the strength of the framework 1 to prevent the framework 1 from cracking and damaging when the thick coil 100 is wound, thereby ensuring the integrity of the framework 1 and improving the dielectric strength safety index; the two iron cores 2 are clamped by the two rib plates 13, and a gap is reserved between the fastening piece 3 and the through hole 211, so that the fastening piece 3 can be prevented from being contacted with the through hole 211, and a good gap is formed between the fastening piece 3 and the through hole 211 to insulate the fastening piece, thereby preventing the iron cores 2 from generating extra loss, preventing the skeletons 1 and the iron cores 2 from loosening, and reducing the probability of generating vibration of the coil 100 during working.

In this embodiment, the framework 1 further includes a column 11, two axial ends of the column 11 are respectively provided with a guard plate 12, the coil 100 is wound on the column 11, and the column 11 and the guard plates 12 are integrally formed, so that the production time and cost of the framework 1 are reduced. In other embodiments, the framework 1 may be detachably formed by combining the column 11 and the guard plate 12, so that the size of the forming die can be reduced, the production difficulty can be reduced, and in actual production, a corresponding forming mode can be selected according to the parameters of the inductor.

Preferably, the framework 1 is a thermosetting plastic framework, so that the insulation performance of the framework 1 is improved, the dimensional stability is high, the heat conductivity coefficient is low, and the processing cost is lower compared with that of thermoplastic plastics.

Preferably, the diameter of the fixing hole 131 is 0.6mm-1.4mm smaller than the diameter of the through hole 211 to ensure that the fastener 3 does not contact the through hole 211, thereby achieving good void insulation. In the present embodiment, the diameter of the fixing hole 131 is 1mm smaller than the diameter of the through hole 211. In other embodiments, the diameter of the fixing hole 131 may be 0.8mm, 0.9mm, 1.1mm, 1.2mm, or the like smaller than the diameter of the through hole 211.

Preferably, the height of the rib 13 is greater than or equal to 12.5mm to increase the creepage distance of the tap on the coil 100 so that the tap reaches the standard safety distance.

Preferably, the fastener 3 comprises a bolt and a nut, the bolt sequentially passes through the fixing hole 131 of one rib plate 13, the through hole 211 and the fixing hole 131 of the other rib plate 13 on the same protecting plate 12 which are coaxially arranged and then is in threaded fit with the nut, the mode of threaded fit of the bolt and the nut not only can realize that the two rib plates 13 on the same protecting plate 12 clamp two iron cores 2, prevent the coil 100 from vibrating and ensure the gap between the fastener 3 and the through hole 211, thereby effectively preventing the condition that the coil 100 vibrates and rubs mutually to cause the short circuit of the inductor, but also the bolt and the nut are convenient to assemble and disassemble.

Fig. 6 shows a front view of the core segment set provided in this embodiment, as shown in fig. 6 in combination with fig. 1 and 2. The iron core 2 comprises a plurality of groups of iron core groups which are stacked, each iron core group comprises two iron core pieces 21 which are L-shaped, two ends of each iron core piece 21 are opposite to each other to form an unclosed square shape, and an air gap is formed between two ends of each iron core piece 21 which are opposite to each other to prevent the iron core piece groups formed by the two iron core pieces 21 from being saturated magnetically.

Preferably, the insulating sheet 22 is filled between the air gaps, and since the two core pieces 21 generate a large attractive magnetic force, the insulating sheet 22 is disposed so that the two core pieces 21 do not come into contact with each other due to the magnetic force attraction, thereby causing magnetic saturation, and the insulating sheet 22 abuts against the two core pieces 21, and the vibration of the core pieces can also be prevented by the frictional force between the insulating sheet 22 and the core pieces 21.

Fig. 7 shows a front view of the fixing bracket 4 provided by the present embodiment, and fig. 8 shows a side view of the fixing bracket 4 provided by the present embodiment, as shown in fig. 7 and 8 in combination with fig. 1 and 2. The inductor further comprises a fixing support 4, one end of the fixing support 4 is connected with the rib plate 13 on one guard plate 12, and the other end of the fixing support 4 is connected with the rib plate 13 on the other guard plate 12, so that the strength of the fixing support 4 is further enhanced, and the integrity of the framework 1 is further guaranteed.

Specifically, the fixing bracket 4 includes a connecting plate 41 and two support plates 42, one ends of the two support plates 42 are respectively connected with two rib plates 13 on the same side of the two guard plates 12, and the other ends of the two support plates 42 are respectively connected with two ends of the connecting plate 41, so as to increase the strength of the bracket.

It is to be understood that the above examples of the present utility model are provided for clarity of illustration only and are not limiting of the embodiments of the present utility model. Various obvious changes, rearrangements and substitutions can be made by those skilled in the art without departing from the scope of the utility model. It is not necessary here nor is it exhaustive of all embodiments. Any modification, equivalent replacement, improvement, etc. which come within the spirit and principles of the utility model are desired to be protected by the following claims.

Claims

1. An inductor, comprising:

The device comprises a framework (1) and a coil (100) wound on the framework (1), wherein two rib plates (13) are arranged on the outer side surfaces of two guard plates (12) in the axial direction of the framework (1) at intervals, and a plurality of fixing holes (131) are formed in the rib plates (13);

The two iron cores (2) are respectively sleeved on two opposite side walls of the framework (1), each iron core (2) is clamped between two rib plates (13) on two guard plates (12), the iron cores (2) are provided with through holes (211), and the diameter of each through hole (211) is larger than that of each fixing hole (131);

Fastener (3), can pass in proper order the same that coaxial setting on backplate (12) one gusset (13) fixed orifices (131), through-hole (211) with another gusset (13) fixed orifices (131), so that same two on backplate (12) gusset (13) press from both sides tightly two iron core (2), just fastener (3) with have the space between through-hole (211).

2. The inductor according to claim 1, characterized in that the inductor further comprises a fixing bracket (4), one end of the fixing bracket (4) is connected with the rib plate (13) on one of the guard plates (12), and the other end of the fixing bracket (4) is connected with the rib plate (13) on the other guard plate (12).

3. The inductor according to claim 2, wherein the fixing bracket (4) comprises a connecting plate (41) and two support plates (42), one ends of the two support plates (42) are respectively connected with the two rib plates (13) on the same side of the two guard plates (12), and the other ends of the two support plates (42) are respectively connected with two ends of the connecting plate (41).

4. The inductor according to claim 1, characterized in that the diameter of the fixing hole (131) is 0.6mm-1.4mm smaller than the diameter of the through hole (211).

5. An inductor according to claim 1, characterized in that the height of the web (13) is greater than or equal to 12.5mm.

6. The inductor according to claim 1, wherein the skeleton (1) further comprises a cylinder (11), the guard plates (12) are respectively arranged at two axial ends of the cylinder (11), the coil (100) is wound on the cylinder (11), and the cylinder (11) and the guard plates (12) are integrally formed.

7. Inductor according to claim 6, characterized in that the armature (1) is a thermosetting plastic armature.

8. The inductor according to claim 1, characterized in that the core (2) comprises a plurality of stacked sets of core pieces, the core pieces comprising two L-shaped core pieces (21), the two ends of the two core pieces (21) being arranged one to one opposite to each other so as to enclose an open mouth shape, and an air gap being provided between the two opposite ends of the two core pieces (21).

9. An inductor according to claim 8, characterized in that the air gap is filled with insulating sheets (22).

10. Inductor according to any one of claims 1 to 9, characterized in that the fastening element (3) comprises a bolt and a nut, the bolt being threaded with the nut after passing through the fixing hole (131) of one of the webs (13) and the through hole (211) of the other web (13) in sequence on the same coaxially arranged shield (12).