Inductance device

Abstract

The utility model discloses an inductor device, which relates to the technical field of inductor devices and comprises an inductor fixing box, a common mode inductor assembly and a high-frequency absorption circuit board, a cylindrical body is integrally formed in the inductor fixing box, the common mode inductor assembly is detachably arranged on the cylindrical body in a sleeving mode, and the common mode inductor assembly is attached to the inner wall of the inductor fixing box. The high-frequency absorption circuit board is detachably arranged at the open end of the inductor fixing box, the end face of the high-frequency absorption circuit board is flush with the end face of the inductor fixing box, and the high-frequency absorption circuit board and the inductor fixing box are fastened through screws. The magnetic ring assembly has the effects of protecting the internal magnetic ring, reducing damage, being high in integration and effectively improving the efficiency in production and assembly, and effectively reducing the conditions of assembly deflection and looseness.

Description

Technical Field

[0001] The present application relates to the technical field of inductance devices, and particularly to an inductance device. Background Art

[0002] An argon arc welding machine is a machine that uses argon arc welding and adopts a starting arc method of high-voltage breakdown. Argon arc welding, namely tungsten inert gas shielded arc welding, refers to a welding method using industrial tungsten or active tungsten as a non-consumable electrode and an inert gas (argon gas) as a shield, abbreviated as TIG.

[0003] For a conventional inductance device used in an argon arc welding machine, the following problems exist during the assembly process:

[0004] 1. The assembly of the conventional inductance device is simple and crude, and the magnetic ring has no protection measures and is easily damaged;

[0005] 2. The inductor and the high-frequency absorption circuit board are separately installed and fixed, with low integration and poor versatility;

[0006] 3. The inductor and the high-frequency absorption circuit board are separately installed and fixed, with cumbersome assembly processes and low production efficiency;

[0007] 4. The high-frequency absorption circuit board is fixed at a single point, and the assembly is prone to skew and looseness.

[0008] Based on the above problems, an inductance device is designed. Utility Model Content

[0009] In order to improve the problems of easy damage of the conventional assembled magnetic ring without protection, low efficiency, and unstable structure of the assembled finished product, the present application provides an inductance device.

[0010] The inductance device provided by the present application adopts the following technical solutions:

[0011] An inductance device includes an inductor fixing box, a common mode inductor assembly, and a high-frequency absorption circuit board; a cylindrical body is integrally formed in the inductor fixing box, the common mode inductor assembly is detachably sleeved on the cylindrical body, and the common mode inductor assembly is in contact with the inner wall of the inductor fixing box; the high-frequency absorption circuit board is detachably arranged at the open end of the inductor fixing box, the end face of the high-frequency absorption circuit board is flush with the end face of the inductor fixing box, and the high-frequency absorption circuit board and the inductor fixing box are fastened by screws.

[0012] By adopting the above technical solution, during the assembly operation, the common-mode inductor component is sleeved on the columnar body inside the inductor fixing box, effectively protecting the magnetic ring and reducing the occurrence of damage. The high-frequency absorption circuit board is installed at the open end of the inductor fixing box, and the high-frequency absorption circuit board and the inductor fixing box are fastened with screws, reducing the manual assembly process and effectively improving the production efficiency. The high-frequency absorption circuit board and the inductor fixing box are fastened with screws on the same end face, reducing the occurrence of skewing or loosening during the assembly process.

[0013] Optionally, connecting ears are integrally formed on the side of the inductor fixing box, and the connecting ears are symmetrically arranged along the axis of the columnar body.

[0014] By adopting the above technical solution, the connecting ears on both sides of the inductor fixing box can enhance the firmness of the side.

[0015] Optionally, the common-mode inductor component includes a coil and a magnetic ring, the magnetic ring is arranged inside the inductor fixing box, and the coil is wound around the magnetic ring.

[0016] By adopting the above technical solution, the coil wound around the magnetic ring is placed inside the inductor fixing box, which plays a certain protective role for the magnetic ring and reduces the occurrence of damage.

[0017] Optionally, the coil has an outgoing end and an incoming end, and the incoming end and the outgoing end are used to attenuate the common-mode current to achieve filtering.

[0018] By adopting the above technical solution, when the incoming end and the outgoing end flow through the common-mode current in the same direction, a magnetic field in the same direction will be generated in the coil, increasing the inductive reactance of the coil, making the coil exhibit a high impedance, generating a strong damping effect, and sequentially attenuating the common-mode current to achieve the filtering effect.

[0019] Optionally, a concave groove is formed on the side wall of the inductor fixing box, the concave groove is symmetrically arranged along the axis of the columnar body, and a convex portion adapted to the concave groove is integrally formed on the high-frequency absorption circuit board.

[0020] By adopting the above technical solution, the high-frequency absorption circuit board is installed inside the inductor fixing box, and their end faces are flush. The inner side wall of the concave groove and the convex portion are in mutual fit, improving the stability of the assembly.

[0021] Optionally, an installation groove is formed on the columnar body, and the installation groove is in threaded cooperation with the screw passing through the high-frequency absorption circuit board.

[0022] By adopting the above technical solution, the screw is a cross-pointed screw, which is threadedly fastened through the high-frequency absorption circuit board and the columnar body, improving the stability of the overall structure assembly. At the same time, the installation groove facilitates the staff to screw during installation.

[0023] Optionally, mounting holes are provided on the side of the inductance fixing box, and bumps are integrally formed at the bottom of the inductance fixing box.

[0024] By adopting the above technical solution, the mounting holes facilitate positioning and installation, and there are sinking grooves on the base platforms where the mounting holes are located, which helps to protect the mounting screws or bolts.

[0025] Optionally, reinforcing ribs are also integrally formed on the columnar body, and the reinforcing ribs extend to be fixed to the inner bottom of the inductance fixing box.

[0026] By adopting the above technical solution, the reinforcing ribs increase the structural installation strength of the columnar body.

[0027] Optionally, through grooves perpendicular to the axis of the columnar body are provided on the connecting ears, and the cross-section of the through grooves is in an arc shape with a smaller upper part and a larger lower part.

[0028] By adopting the above technical solution, the through grooves facilitate observing whether the internal coils and magnetic rings are properly installed, and at the same time, they facilitate manual prying of the high-frequency absorption circuit board through the through grooves during disassembly.

[0029] In summary, the present application includes at least one of the following beneficial technical effects:

[0030] 1. The inductance is installed in the inductance fixing box, which can protect the magnetic ring and is not easily damaged.

[0031] ]2. Both the inductance and the high-frequency absorption circuit board are installed in the inductance fixing box, with high integration and easy generalization.

[0032] 3. Both the inductance and the high-frequency absorption circuit board are installed in the inductance fixing box, improving the production and assembly efficiency.

[0033] 4. The high-frequency absorption circuit board and the inductance fixing box are designed in a special-shaped square convex shape and concave shape, solving the problems of easy skew and looseness during assembly. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following will briefly introduce the drawings required for description in the embodiments. Obviously, the following drawings are only some embodiments of the present application. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0035] Figure 1 It is a schematic diagram of the overall structure of the present application.

[0036] Figure 2 It is an exploded view of the overall structure of the present application.

[0037] Figure 3 It is a schematic diagram of the structure of the common-mode inductance component of the present application.

[0038] Figure 4 It is a schematic structural diagram of the inductor fixing box observed from the top view of the present application.

[0039] Figure 5 It is a sectional view showing the internal structure of the present application.

[0040] Figure 6 In the present application Figure 4 is an enlarged view taken in the direction of arrow A.

[0041] Reference numerals: 1, inductor fixing box; 2, common mode inductor assembly; 3, high-frequency absorption circuit board; 4, cylindrical body; 5, connecting ear; 21, coil; 22, magnetic ring; 211, outgoing line end; 222, incoming line end; 6, concave groove; 7, convex portion; 8, mounting groove; 9, mounting hole; 10, convex block; 11, reinforcing rib. Detailed implementation manners

[0042] The following will further elaborate on the present application in conjunction with the attached Figures 1-6 drawings.

[0043] An embodiment of the present application discloses an inductor device.

[0044] Referring to Figure 1 , it includes an inductor fixing box 1, a common mode inductor assembly 2 and a high-frequency absorption circuit board 3; a cylindrical body 4 is integrally formed inside the inductor fixing box 1, the common mode inductor assembly 2 is detachably sleeved on the cylindrical body 4, and the common mode inductor assembly 2 is in contact with the inner wall of the inductor fixing box 1. The inductor is installed in the inductor fixing box 1, which can protect the magnetic ring 22 and is not easily damaged; the high-frequency absorption circuit board 3 is detachably arranged at the open end of the inductor fixing box 1, the end face of the high-frequency absorption circuit board 3 is flush with the end face of the inductor fixing box 1, and the high-frequency absorption circuit board 3 and the inductor fixing box 1 are fastened by screws. Both the inductor and the high-frequency absorption circuit board 3 are installed inside the inductor fixing box 1, with high integration and convenience for generalization.

[0045] Referring to Figure 2 and Figure 4 as shown, a connecting ear 5 is integrally formed on the side of the inductor fixing box 1. The connecting ears 5 are symmetrically arranged along the axis of the cylindrical body 4, and the connecting ears 5 on both sides of the inductor fixing box 1 can enhance the firmness of the side.

[0046] Referring to Figure 3 as shown, the common mode inductor assembly 2 includes a coil 21 and a magnetic ring 22. The magnetic ring 22 is arranged inside the inductor fixing box 1, and the coil 21 is wound around the magnetic ring 22. Placing the coil 21 wound around the magnetic ring 22 inside the inductor fixing box 1 can play a certain role in protecting the magnetic ring 22 and reduce the occurrence of damage.

[0047] Referring to Figure 3As shown, the coil 21 has an outgoing terminal 211 and an incoming terminal 222. The incoming terminal 222 and the outgoing terminal 211 are used to attenuate the common-mode current to achieve filtering. When the incoming terminal 222 and the outgoing terminal 211 carry the common-mode current in the same direction, a magnetic field in the same direction will be generated in the coil 21, increasing the inductive reactance of the coil 21, making the coil 21 appear as a high impedance, generating a strong damping effect, and sequentially attenuating the common-mode current. On the one hand, it filters out the common-mode electromagnetic interference on the signal line, and on the other hand, it suppresses the electromagnetic interference that is not emitted outward by itself, reducing the impact on the normal operation of other electronic devices in the same electromagnetic environment 22.

[0048] See Figure 2 , Figure 4 and Figure 6 As shown, a concave groove 6 is provided on the side wall of the inductor fixing box 1. The concave groove 6 is symmetrically arranged along the axis of the cylindrical body 4. A convex portion 7 adapted to the concave groove 6 is integrally formed on the high-frequency absorption circuit board 3. During assembly, the convex portion 7 and the concave groove 6 have a certain recognition ability, which helps workers improve work efficiency during installation. The high-frequency absorption circuit board 3 is installed in the inductor fixing box 1, and their end faces are flush. The inner side wall of the concave groove 6 and the convex portion 7 are mutually attached, improving the stability of the assembly. The high-frequency absorption circuit board 3 and the inductor fixing box 1 are designed with a special-shaped square, and the convex portion 7 and the concave groove 6 are adapted, effectively reducing the situation of easy skew and looseness during installation.

[0049] See Figure 5 As shown, an installation groove 8 is provided on the cylindrical body 4. The installation groove 8 is in threaded cooperation with the screw passing through the high-frequency absorption circuit board 3. The diameter of the installation groove 8 is larger at the top and smaller at the bottom, which is convenient for the screw and the installation groove 8 to cooperate and lock with each other. The screw uses a cross-pointed screw, which is threadedly fastened through the high-frequency absorption circuit board 3 and the cylindrical body 4, improving the stability of the overall structure assembly. At the same time, the installation groove 8 is convenient for the staff to screw during installation.

[0050] See Figure 4 and Figure 5 As shown, an installation hole 9 is provided on the side of the inductor fixing box 1. A convex block 10 is integrally formed at the bottom of the inductor fixing box 1. The installation hole 9 is convenient for positioning and installation, and there is a counterbore on the base platform where the installation hole 9 is located, which helps to protect the installation screw or installation bolt.

[0051] See Figure 4 As shown, a reinforcing rib 11 is also integrally formed on the cylindrical body 4. The reinforcing rib 11 extends to the inner bottom of the inductor fixing box 1 and is fixed. The reinforcing rib 11 increases the structural installation strength of the cylindrical body 4.

[0052] See Figure 2As shown, a through groove perpendicular to the axis of the cylindrical body 4 is provided on the connecting ear 5, and the cross-section of the through groove is in an arc shape that is smaller at the top and larger at the bottom. The through groove facilitates observing whether the internal coil 21 and the magnetic ring 22 are properly positioned. At the same time, it is convenient for manual prying of the high-frequency absorption circuit board 3 through the through groove during disassembly. The through grooves on both sides facilitate the connection of the coils 21 at the incoming line end 222 and the outgoing line end 211 respectively.

[0053] The implementation principle of an inductance device in an embodiment of this application is as follows: Two sets of common-mode inductance components are sleeved on the cylindrical body 4 in the inductance fixing box 1 to protect the magnetic ring 22 and reduce the occurrence of external damage. The high-frequency absorption circuit board 3 is installed on the open end of the inductance fixing box 1. The concave groove 6 on the inductance fixing box 1 and the convex portion 7 on the high-frequency absorption circuit board 3 are mutually attached to reduce the occurrence of assembly skew and looseness. Moreover, the bottom of the high-frequency absorption circuit board 3 is placed on the end face of the cylindrical body 4. Both the inductor and the high-frequency absorption circuit board 3 are installed in the inductance fixing box 1, with high integration and improved versatility. The screws are tightened by an electric screwdriver and driven into the installation groove 8 from the end face of the high-frequency absorption circuit board 3. Compared with conventional inductance devices, the assembly process is reduced and the production assembly efficiency is improved.

[0054] Unless otherwise defined, the technical terms or scientific terms used in this application should have the ordinary meaning understood by those with ordinary skills in the field to which this application belongs. The words "first", "second", "third" and similar words used in the specification and claims of this application do not indicate any order, quantity or importance, but are only used to distinguish different components. Words such as "a" or "one" do not indicate a quantity limitation either, but indicate the existence of at least one. Words such as "including" or "comprising" mean that the elements or objects appearing before "including" or "comprising" cover the elements or objects listed after "including" or "comprising" and their equivalents, and do not exclude other elements or objects. "Upper", "lower", "left", "right", etc. are only used to indicate relative position relationships. When the absolute position of the object being described changes, the relative position relationship may also change accordingly.

[0055] The above are all the preferred embodiments of this application. The protection scope of this application is not limited accordingly. Therefore, all equivalent changes made according to the structure, shape, and principle of this application should be covered within the protection scope of this application.

Claims

1. An inductance device, characterized in that: It includes an inductor fixing box (1), a common mode inductor assembly (2), and a high-frequency absorption circuit board (3); A cylindrical body (4) is integrally formed inside the inductor fixing box (1). The common mode inductor assembly (2) is detachably sleeved on the cylindrical body (4), and the common mode inductor assembly (2) is in contact with the inner wall of the inductor fixing box (1); The high-frequency absorption circuit board (3) is detachably arranged at the opening end of the inductor fixing box (1). The end face of the high-frequency absorption circuit board (3) is flush with the end face of the inductor fixing box (1), and the high-frequency absorption circuit board (3) and the inductor fixing box (1) are fastened by screws.

2. An inductance device according to claim 1, characterized in that: Connection ears (5) are integrally formed on the side of the inductor fixing box (1), and the connection ears (5) are symmetrically arranged along the axis of the cylindrical body (4).

3. An inductance device according to claim 1, characterized in that: The common mode inductor assembly (2) includes a coil (21) and a magnetic ring (22). The magnetic ring (22) is arranged inside the inductor fixing box (1), and the coil (21) is wound around the magnetic ring (22).

4. An inductance device according to claim 3, characterized in that: The coil (21) has an outgoing wire end (211) and an incoming wire end (222). The incoming wire end (222) and the outgoing wire end (211) are used to attenuate the common mode current to achieve filtering.

5. An inductance device according to claim 1, characterized in that: A concave groove (6) is formed on the side wall of the inductor fixing box (1). The concave groove (6) is symmetrically arranged along the axis of the cylindrical body (4). A convex portion (7) adapted to the concave groove (6) is integrally formed on the high-frequency absorption circuit board (3).

6. An inductance device according to claim 1, wherein: An installation groove (8) is formed on the cylindrical body (4), and the installation groove (8) is in threaded cooperation with the screw passing through the high-frequency absorption circuit board (3).

7. An inductance device according to claim 1, characterized in that: An installation hole (9) is formed on the side of the inductor fixing box (1), and a convex block (10) is integrally formed on the bottom of the inductor fixing box (1).

8. An inductance device according to claim 1, characterized in that: Reinforcing ribs (11) are also integrally formed on the cylindrical body (4), and the reinforcing ribs (11) extend to be fixed to the inner bottom of the inductor fixing box (1).

9. An inductance device according to claim 2, characterized in that: A through groove perpendicular to the axis of the cylindrical body (4) is formed on the connection ear (5), and the cross section of the through groove is in an arc shape with a smaller upper part and a larger lower part.

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