CN218730331U

CN218730331U - Coil skeleton and inductance device

Info

Publication number: CN218730331U
Application number: CN202222844221.XU
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: 2022-10-27
Filing date: 2022-10-27
Publication date: 2023-03-24
Anticipated expiration: 2032-10-27

Abstract

The utility model relates to the technical field of inductance devices, and discloses a coil framework and an inductance device, wherein the coil framework comprises a framework body, the framework body comprises an upper framework and a lower framework which are arranged oppositely and at intervals, the upper framework and the lower framework are connected through a connecting part to form an integrated structure, and a containing space for containing a coil is formed among the upper framework, the connecting part and the lower framework; the framework body is provided with a mounting groove, the mounting groove comprises a first groove arranged at the top of the upper framework, a second groove arranged at the bottom of the lower framework and a communicating groove arranged at the connecting part, and the communicating groove is communicated with the first groove and the second groove; a first mounting hole is formed in the first groove of the upper framework, a second mounting hole is formed in the second groove of the lower framework, and the first mounting hole and the second mounting hole are arranged oppositely. The coil framework is of an integrated structure, the structure is firm, the number of parts is reduced, the installation efficiency is improved, and the inductance device is compact in structure and reasonable in layout.

Description

Coil skeleton and inductance device

Technical Field

The utility model relates to an inductance device technical field especially relates to a coil skeleton and induction system.

Background

The inductance device is a device capable of converting electric energy into magnetic energy to be stored, and is similar to a transformer in structure, but only has one winding, the inductor has certain inductance and only blocks the change of current, and the magnetic core assembly of the inductor is matched with the coil assembly to increase the magnetic induction intensity of an electromagnet. The coil framework of the existing inductance device for supporting the magnetic core assembly and the coil assembly is generally of a split structure, the number of parts is large, the installation is inconvenient, and the overall strength after the assembly is low.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a coil skeleton and inductance device, it is more to have the part quantity for dividing the body structure to have solved current coil skeleton, and the installation is inconvenient, the lower technical problem of bulk strength after the equipment.

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

the utility model provides a coil skeleton, including the skeleton body, the skeleton body includes:

the coil winding machine comprises an upper framework and a lower framework which are oppositely arranged at intervals, wherein the upper framework and the lower framework are connected through a connecting part to form an integral structure, and a coil accommodating space is formed among the upper framework, the connecting part and the lower framework;

the framework body is provided with a mounting groove, the mounting groove comprises a first groove arranged at the top of the upper framework, a second groove arranged at the bottom of the lower framework and a communicating groove arranged at the connecting part, and the communicating groove is communicated with the first groove and the second groove;

the first groove of the upper framework is internally provided with a first mounting hole, the second groove of the lower framework is internally provided with a second mounting hole, and the first mounting hole and the second mounting hole are oppositely arranged.

This coil skeleton structure as an organic whole, the sound construction is reliable, has reduced part quantity, has improved inductance device's installation effectiveness, through accommodation space installation coil pack, through the mounting groove installation magnetic core subassembly on the skeleton body to first mounting hole and the second mounting hole through relative setting make in the magnetic core subassembly stretches into coil pack, compact structure, rationally distributed.

As a preferable scheme of the coil bobbin, a first limiting groove is formed in one side of the upper bobbin, which faces the lower bobbin, and is communicated with the first mounting hole, and the first limiting groove is formed through a side wall of the upper bobbin;

orientation of skeleton down one side of going up the skeleton is provided with the second spacing groove, the second spacing groove with first spacing groove sets up relatively, the second spacing groove with the second mounting hole communicates, the second spacing groove link up the lateral wall setting of skeleton down.

The first limiting groove and the second limiting groove are arranged, so that the insulating sleeve is convenient to install, and the end part of the insulating sleeve after installation protrudes out of the supporting surface of the coil assembly, so that the creepage distance between the coil assembly and the magnetic core assembly is increased.

As an optimal solution of above-mentioned coil skeleton, connecting portion connect in go up the skeleton with one side of skeleton down, the skeleton body is the U type structure of opening towards the lateral part, the mounting groove is U type structure.

The skeleton body is the opening towards the U type structure of lateral part, and the mounting groove also is U type structure, the simple structure of skeleton body, and preparation is convenient.

As a preferable mode of the coil bobbin, the upper bobbin, the connecting portion, and the lower bobbin are integrally injection molded.

The integrative injection moulding of skeleton body, it is comparatively convenient to prepare.

As a preferable mode of the coil bobbin, a plurality of fixing holes are provided on the upper bobbin and/or the lower bobbin.

The setting of fixed orifices is convenient for other parts to install on the skeleton body.

The utility model also provides an inductance device, including foretell coil skeleton, still include:

the coil assembly is arranged in the accommodating space of the coil framework, and an insulating sleeve is arranged in the coil assembly in a penetrating manner; and

the magnetic core assembly comprises a first magnetic core and a second magnetic core, the first magnetic core is installed in the first groove and the communicating groove, partial structure of the first magnetic core penetrates through the first installation hole and stretches into the insulating sleeve, the second magnetic core is installed in the second groove and the communicating groove, partial structure of the first magnetic core penetrates through the second installation hole and stretches into the insulating sleeve.

This inductance device installs coil pack and magnetic core assembly through coil skeleton, has played better supporting role, and in coil pack arranged coil skeleton's accommodation space, magnetic core assembly's first magnetic core and second magnetic core were installed respectively in the mounting groove to stretch into magnetic core assembly's insulating cover through first mounting hole and second mounting hole intraductally, simple to operate, compact structure.

As a preferable aspect of the above inductance device, each of the first and second magnetic cores includes:

the magnetic core mounting part is of an L-shaped structure and is mounted in the mounting groove; and

the magnetic core structure, install in on the magnetic core installation department, the magnetic core structure with the magnetic core installation department links to each other and forms U type structure, the magnetic core structure link up first mounting hole or the second mounting hole stretches into in the insulating sleeve.

The above-mentioned structure setting of this first magnetic core and second magnetic core can laminate with the mounting groove mutually after first magnetic core and second magnetic core are installed in the mounting groove, avoids first magnetic core and second magnetic core pivoted condition to appear.

As a preferable mode of the above inductance device, a locking portion is provided between the first magnetic core and the second magnetic core.

The arrangement of the locking part prevents the first magnetic core and the second magnetic core from being separated from the mounting groove, and the fixing effect is achieved.

As an optimal scheme of the above inductance device, the locking portion is a clamp spring, the first magnetic core and the second magnetic core are provided with a clamping groove on the outer wall of the magnetic core mounting portion, and the clamp spring is clamped in the clamping groove of the first magnetic core and the second magnetic core.

Realize the fixed to first magnetic core and second magnetic core through the cooperation in jump ring and joint groove, simple structure, the cost of manufacture is low.

As a preferable scheme of the above inductance device, a first limiting groove is formed in one side of the upper frame facing the lower frame, the first limiting groove is communicated with the first mounting hole, and the first limiting groove is formed to penetrate through a side wall of the upper frame;

a second limiting groove is formed in one side, facing the upper framework, of the lower framework, the second limiting groove is opposite to the first limiting groove, the second limiting groove is communicated with the second mounting hole, and the second limiting groove penetrates through the side wall of the lower framework;

and two ends of the insulating sleeve are respectively limited in the first limiting groove and the second limiting groove.

The both ends of insulating sleeve are spacing respectively in first spacing groove and second spacing inslot, and the insulating sleeve's after the installation tip protrusion in coil pack's holding surface to the creepage distance between coil pack and the magnetic core subassembly has been enlarged.

The utility model has the advantages that:

the utility model provides a coil skeleton, coil skeleton structure as an organic whole, the sound construction is reliable, has reduced part quantity, has improved inductance device's installation effectiveness, through accommodation space installation coil pack, through the mounting groove installation magnetic core subassembly on the skeleton body to in first mounting hole and the second mounting hole through relative setting make magnetic core subassembly stretch into coil pack, compact structure, rationally distributed.

The utility model provides a coil skeleton installs coil pack and magnetic core subassembly through coil skeleton, has played better supporting role, and in coil pack arranged coil skeleton's accommodation space, magnetic core subassembly's first magnetic core and second magnetic core were installed respectively in the mounting groove to stretch into in the insulating cover of magnetic core subassembly through first mounting hole and second mounting hole, simple to operate, compact structure.

Drawings

Fig. 1 is a schematic structural diagram of a coil bobbin provided by the present invention;

fig. 2 is a left side view of the coil bobbin provided by the present invention;

FIG. 3 isbase:Sub>A cross-sectional view taken along line A-A of FIG. 2;

fig. 4 is a right side view of the coil bobbin provided by the present invention;

fig. 5 is a front view of the coil bobbin provided by the present invention;

fig. 6 is a top view of the coil bobbin provided by the present invention;

fig. 7 is a schematic structural diagram of an inductance device provided by the present invention;

fig. 8 is an exploded view of the inductance device provided by the present invention.

In the figure:

100. a skeleton body;

1. mounting a framework; 11. a first groove; 12. a first mounting hole; 13. a first limit groove; 14. a first fixing hole; 15. a first support surface;

2. a lower framework; 21. a second groove; 22. a second mounting hole; 23. a second limit groove; 24. a second fixing hole; 25. a second support surface;

3. a connecting portion; 31. A communicating groove;

200. a coil assembly; 201. A first coil; 202. A second coil;

300. a magnetic core assembly; 301. a first magnetic core; 3011. a first core mounting portion; 30111. a first clamping groove; 3012. a first magnetic core structure;

302. a second magnetic core; 3021. a second core mounting portion; 30211. a second clamping groove; 3022. a second magnetic core structure;

400. an insulating sleeve;

500. a locking portion.

Detailed Description

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

In the description of the present invention, unless expressly stated or limited otherwise, the terms "connected," "connected," and "fixed" are to be construed broadly, e.g., as meaning permanently connected, detachably connected, or integral to one another; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

In the present disclosure, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise direct contact between the first and second features, or may comprise contact between the first and second features not directly. Also, the first feature "on," "above" and "over" the second feature may include the first feature being directly above and obliquely above the second feature, or simply indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

In the description of the present embodiment, the terms "upper", "lower", "right", etc. are used in an orientation or positional relationship based on that shown in the drawings only for convenience of description and simplicity of operation, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used only for descriptive purposes and are not intended to have a special meaning.

The coil framework of the existing inductance device for supporting the magnetic core assembly and the coil assembly is generally of a split structure, the number of parts is large, the installation is inconvenient, and the overall strength after the assembly is low. In order to avoid the above problem, as shown in fig. 1 to 6, the present embodiment provides a coil bobbin, which includes a bobbin body 100, where the bobbin body 100 includes an upper bobbin 1 and a lower bobbin 2 that are disposed oppositely and at an interval, the upper bobbin 1 and the lower bobbin 2 are connected by a connecting portion 3 to form an integral structure, and an accommodating space for accommodating a coil is formed among the upper bobbin 1, the connecting portion 3 and the lower bobbin 2; the framework body 100 is provided with mounting grooves, the mounting grooves comprise a first groove 11 arranged at the top of the upper framework 1, a second groove 21 arranged at the bottom of the lower framework 2 and a communicating groove 31 arranged at the connecting part 3, and the communicating groove 31 is communicated with the first groove 11 and the second groove 21; a first mounting hole 12 is formed in the first groove 11 of the upper framework 1, a second mounting hole 22 is formed in the second groove 21 of the lower framework 2, and the first mounting hole 12 and the second mounting hole 22 are arranged oppositely.

This coil skeleton is structure as an organic whole, and sound construction is reliable, has reduced part quantity, has improved inductance device's installation effectiveness, refers to fig. 7 and fig. 8, through accommodation space installation coil pack 200, through mounting groove installation magnetic core assembly 300 on the skeleton body 100 to in first mounting hole 12 and the second mounting hole 22 that make through relative setting make magnetic core assembly 300 stretch into coil pack 200, compact structure, rationally distributed.

Specifically, connecting portion 3 is connected in one side of last skeleton 1 and lower skeleton 2, and skeleton body 100 is the opening towards the U type structure of lateral part, and the mounting groove also is U type structure, and skeleton body 100's simple structure, preparation are convenient. In this embodiment, go up skeleton 1, connecting

portion

3 and 2 integrative injection moulding of lower skeleton, it is comparatively convenient to prepare.

Further, as shown in fig. 3, the bottom surface of the upper bobbin 1 is a first supporting surface 15, the top surface of the lower bobbin 2 is a second supporting surface 25, and the first supporting surface 15 and the second supporting surface 25 are used for supporting the coil assembly 200. A first limiting groove 13 is formed in one side, facing the lower framework 2, of the upper framework 1, the first limiting groove 13 is communicated with the first mounting hole 12, and the first limiting groove 13 penetrates through the side wall of the upper framework 1; one side of skeleton 1 is provided with second spacing groove 23 in the orientation of lower skeleton 2, second spacing groove 23 sets up with first spacing groove 13 relatively, second spacing groove 23 is linked together with second mounting hole 22, second spacing groove 23 runs through the lateral wall setting of skeleton 2 down, so that insulation support 400's easy to assemble, insulation support 400's after the installation top protrusion in (be higher than) coil pack 200 first holding surface 15, insulation support 400's bottom protrusion in (be less than) coil pack 200's second holding surface 25, thereby the creepage distance between coil pack 200 and magnetic core subassembly 300 has been enlarged.

Optionally, a plurality of fixing holes are provided on the upper frame 1 and/or the lower frame 2, and the fixing holes are provided to facilitate the installation of other components on the frame body 100. In this embodiment, as shown in fig. 1 and 3, the fixing holes provided in the upper frame 1 are first fixing holes 14, the fixing holes provided in the lower frame 2 are second fixing holes 24, the first fixing holes 14 are provided at the four corners of the upper frame 1, the second fixing holes 24 are provided at the four corners of the lower frame 2, the first fixing holes 14 are provided to avoid the first groove 11, the two first fixing holes 14 are provided at the two sides of the first groove 11, the second fixing holes 24 are provided to avoid the second groove 21, the two second fixing holes 24 are provided at the two sides of the second groove 21, and other components can be mounted on the upper frame 1 and the lower frame 2 through the first fixing holes 14 and the second fixing holes 24.

As shown in fig. 7 and 8, this embodiment further provides an inductance device, which includes the above-mentioned bobbin, and further includes a coil assembly 200 and a magnetic core assembly 300, the coil assembly 200 is disposed in the accommodating space of the bobbin, the coil assembly 200 includes a first coil 201 and a second coil 202, the first coil 201 is disposed in the accommodating space, an axial direction of the first coil 201 is parallel to or coincides with a connecting line of centers of the first mounting hole 12 and the second mounting hole 22, the second coil 202 is connected to the first coil 201 for power connection, an insulating sleeve 400 is disposed in the first coil 201 of the coil assembly 200 in a penetrating manner, and the insulating sleeve 400 isolates the coil assembly 200 from the magnetic core assembly 300.

Further, the magnetic core assembly 300 includes a first magnetic core 301 and a second magnetic core 302, the first magnetic core 301 is installed in the first groove 11 and the communication groove 31, a part of the structure of the first magnetic core 301 penetrates through the first installation hole 12 and extends into the insulating sleeve 400, the second magnetic core 302 is installed in the second groove 21 and the communication groove 31, and a part of the structure of the first magnetic core 301 penetrates through the second installation hole 22 and extends into the insulating sleeve 400.

This inductance device passes through coil skeleton and installs coil pack 200 and magnetic core assembly 300, better supporting role has been played, coil pack 200 arranges in coil skeleton's accommodation space, install respectively in the mounting groove first magnetic core 301 and second magnetic core 302 of magnetic core assembly 300, and stretch into in magnetic core assembly 300's insulation support 400 through first mounting hole 12 and second mounting hole 22, and simple to operate, moreover, compact structure, and coil skeleton cooperation insulation support 400 through the U type makes coil pack 200 and magnetic core assembly 300 can keep apart completely.

Further, the first magnetic core 301 includes a first magnetic core mounting portion 3011 and a first magnetic core structure 3012, the first magnetic core mounting portion 3011 is an L-shaped structure, the first magnetic core mounting portion 3011 is mounted in the upper structure of the first groove 11 and the communicating groove 31, the first magnetic core structure 3012 is mounted on the first magnetic core mounting portion 3011, the first magnetic core structure 3012 is connected with the first magnetic core mounting portion 3011 to form a U-shaped structure, and the first magnetic core structure 3012 penetrates through the first mounting hole 12 and extends into the insulating sleeve 400. The second core 302 includes a second core mounting portion 3021 and a second core structure 3022, the second core mounting portion 3021 has an L-shaped structure, the second core mounting portion 3021 is mounted in a lower portion of the second groove 21 and the communication groove 31, the second core structure 3022 is mounted on the second core mounting portion 3021, the second core structure 3022 is connected to the second core mounting portion 3021 to form a U-shaped structure, and the second core structure 3022 extends into the insulating sleeve 400 through the second mounting hole 22. The parts of the first magnetic core mounting part 3011 and the second magnetic core mounting part 3021, which extend into the communication groove 31, abut against each other, the first magnetic core structure 3012 and the second magnetic core structure 3022 abut against each other, and when the first magnetic core 301 and the second magnetic core 302 are mounted in the mounting grooves, the first magnetic core 301 and the second magnetic core 302 can be attached to the mounting grooves, so that the situation that the first magnetic core 301 and the second magnetic core 302 rotate is avoided. In this embodiment, the first core 301 and the second core 302 are made of ferrite and have high magnetic permeability.

Optionally, a locking portion 500 is disposed between the first magnetic core 301 and the second magnetic core 302, and the locking portion 500 prevents the first magnetic core 301 and the second magnetic core 302 from being separated from the mounting groove, so as to perform a fixing function.

Further, the locking portion 500 is a clip spring, the clip spring is of a U-shaped structure, a first clip groove 30111 is formed in the first magnetic core mounting portion 3011, the first clip groove 30111 is of an L-shaped structure, a second clip groove 30211 is formed in the second magnetic core mounting portion 3021, the second clip groove 30211 is of an L-shaped structure, and the clip spring is clipped in the first clip groove 30111 and the second clip groove 30211. Realize the fixed to first magnetic core 301 and second magnetic core 302 through the cooperation in jump ring and joint groove, simple structure, the cost of manufacture is low.

Preferably, two ends of the insulation sleeve 400 are respectively installed in place by the openings of the through side walls of the first limiting groove 13 and the second limiting groove 23 and limited in the first limiting groove 13 and the second limiting groove 23, the top end of the installed insulation sleeve 400 protrudes out of (is higher than) the first supporting surface 15 of the coil assembly 200, and the bottom end of the insulation sleeve 400 protrudes out of (is lower than) the second supporting surface 25 of the coil assembly 200, so that the creepage distance between the coil assembly 200 and the magnetic core assembly 300 is increased.

It is obvious that the above embodiments of the present invention are only examples for clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention. Numerous obvious variations, rearrangements and substitutions will now occur to those skilled in the art without departing from the scope of the invention. This need not be, nor should it be exhaustive of all embodiments. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be included in the protection scope of the claims of the present invention.

Claims

1. Coil skeleton, characterized in that, including skeleton body (100), skeleton body (100) includes:

the coil winding device comprises an upper framework (1) and a lower framework (2) which are arranged oppositely and at intervals, wherein the upper framework (1) and the lower framework (2) are connected through a connecting part (3) to form an integral structure, and an accommodating space for accommodating a coil is formed among the upper framework (1), the connecting part (3) and the lower framework (2);

the framework body (100) is provided with mounting grooves, the mounting grooves comprise a first groove (11) arranged at the top of the upper framework (1), a second groove (21) arranged at the bottom of the lower framework (2) and a communicating groove (31) arranged at the connecting part (3), and the communicating groove (31) is communicated with the first groove (11) and the second groove (21);

a first mounting hole (12) is formed in the first groove (11) of the upper framework (1), a second mounting hole (22) is formed in the second groove (21) of the lower framework (2), and the first mounting hole (12) and the second mounting hole (22) are arranged oppositely.

2. The bobbin according to claim 1, wherein a first limiting groove (13) is formed in one side of the upper bobbin (1) facing the lower bobbin (2), the first limiting groove (13) is communicated with the first mounting hole (12), and the first limiting groove (13) is formed through the side wall of the upper bobbin (1);

orientation of skeleton (2) down one side of going up skeleton (1) is provided with second spacing groove (23), second spacing groove (23) with first spacing groove (13) set up relatively, second spacing groove (23) with second mounting hole (22) are linked together, second spacing groove (23) link up the lateral wall setting of skeleton (2) down.

3. The bobbin according to claim 1, wherein the connection part (3) is connected to one side of the upper bobbin (1) and the lower bobbin (2), the bobbin body (100) is a U-shaped structure with an opening facing a side part, and the mounting groove is a U-shaped structure.

4. Coil armature according to claim 1, characterized in that the upper armature (1), the connection portion (3) and the lower armature (2) are injection molded in one piece.

5. Bobbin according to claim 1, characterized in that a plurality of fixing holes are provided in the upper bobbin (1) and/or the lower bobbin (2).

6. An inductive device, comprising the bobbin of any one of claims 1-5, further comprising:

the coil assembly (200), the coil assembly (200) is arranged in the accommodating space of the coil framework, and an insulating sleeve (400) penetrates through the coil assembly (200); and

a magnetic core assembly (300), wherein the magnetic core assembly (300) comprises a first magnetic core (301) and a second magnetic core (302), the first magnetic core (301) is installed in the first groove (11) and the communication groove (31), and part of the structure of the first magnetic core (301) penetrates through the first installation hole (12) and extends into the insulating sleeve (400); the second magnetic core (302) is arranged in the second groove (21) and the communication groove (31), and part of the structure of the first magnetic core (301) penetrates through the second installation hole (22) and extends into the insulating sleeve (400).

7. An inductive device according to claim 6, characterized in that the first magnetic core (301) and the second magnetic core (302) each comprise:

magnetic core structure, install in on the magnetic core installation department, magnetic core structure with the magnetic core installation department links to each other and forms U type structure, the magnetic core structure link up first mounting hole (12) or second mounting hole (22) and stretch into in insulation support (400).

8. An induction device according to claim 7, characterised in that a locking part (500) is arranged between the first core (301) and the second core (302).

9. The inductance device according to claim 8, wherein the locking portion (500) is a snap spring, and a snap groove is formed in an outer wall of the magnetic core mounting portion of the first magnetic core (301) and the second magnetic core (302), and the snap spring is snapped in the snap groove of the first magnetic core (301) and the second magnetic core (302).

10. The inductance device according to claim 6, wherein a first limiting groove (13) is formed in one side of the upper frame (1) facing the lower frame (2), the first limiting groove (13) is communicated with the first mounting hole (12), and the first limiting groove (13) is formed through the side wall of the upper frame (1);

a second limiting groove (23) is formed in one side, facing the upper framework (1), of the lower framework (2), the second limiting groove (23) is opposite to the first limiting groove (13), the second limiting groove (23) is communicated with the second mounting hole (22), and the second limiting groove (23) penetrates through the side wall of the lower framework (2);

two ends of the insulating sleeve (400) are respectively limited in the first limiting groove (13) and the second limiting groove (23).