JPH04117409U - toroidal coil - Google Patents

Abstract

(57) [Summary] [Purpose] To provide a board-mounted toroidal coil whose pin terminal arrangement can be easily changed. [Structure] A dovetail groove is formed on the bottom of a retaining plate that is integrally provided on the outer peripheral surface of the insulating case for the toroidal core, and relay terminals are provided vertically through the holding plate. The core is housed in an insulating case, winding is applied, and the end of the winding is connected to the relay terminal on the surface of the holding plate. An insulated terminal board with an engaging protrusion that fits into a dovetail groove on the plate surface has a conductor with one end as a connecting plate and the other end as a pin terminal, and the connecting plate in an arrangement corresponding to the interrupted terminal. The pin terminals are exposed on the board surface, and buried with pin terminals protruding from other board surfaces in a predetermined arrangement. Several types of insulated terminal boards are prepared to match the orientation and arrangement of pin terminals to customer requirements. Attach the necessary insulated terminal plate to the holding plate by fitting the engagement protrusion into the dovetail groove. The connection plate between the relay terminal and the conductor is electrically connected by pressure welding to form the required toroidal coil.

Description

[Detailed explanation of the idea]

0001

[Industrial application field]

The present invention is a trojan with a ring-shaped magnetic core that has high relative permeability characteristics and is incorporated into electronic circuits. Regarding the structure of a toroidal coil that uses a dull core and is attached to a board. It is.

0002

[Conventional technology]

When installing a coil using a toroidal core on a board, the axial direction of the core should be horizontal. There are two ways to install it: vertically (vertically) and horizontally (vertically). Toroider using thick winding material A conventional vertical toroidal coil (hereinafter referred to as the core) in which a winding is wound around a core (hereinafter referred to as the core). (hereinafter simply referred to as a coil) is a rectangular shape held on the outer circumferential surface of a double cylindrical body that houses the core. The plate is integrally provided, and the holding plate has through holes in a predetermined array near the four corners, and from these through holes. The end of the winding is Insert the part into the through hole through the cut groove, protrude from the bottom of the holding plate, and attach the board mounting pin. It was designed to have a single terminal.

0003

[Problem that the idea aims to solve]

The vertically installed coil described above cannot change the terminal arrangement, so the core Several types of insulation cases with standardized terminal arrangements were procured for each size. Customer-specific A coil with a terminal arrangement of won. Also, changing from vertical to horizontal orientation was extremely troublesome and could not be carried out. .

0004

[Means to solve the problem]

An engagement groove is provided on the bottom of the holding plate of a conventional vertical insulation case, allowing relay terminals to be placed vertically. Provided through. The insulated terminal plate has an engaging protrusion that fits into the engaging groove, and one end is connected to the insulated terminal plate. Connect the conductor whose other end is a pin terminal on the connection plate part, and connect the connection plate part to the relay terminal on the surface with the engagement protrusion. The pin terminals are exposed in the corresponding arrangement and buried with the pin terminals protruding from the other surface in the specified arrangement. do. The core is housed in an insulating case, the winding is applied, and the end of the winding is connected to the relay terminal with a holding plate. Connect on the front side. Insert the insulated terminal board with the required terminal arrangement into the engagement groove and insert the engagement protrusion into the engagement groove. This is a coil that is attached to the holding plate.

[0005] That is, the present invention provides a holding plate integrally on the outer peripheral surface of the core storage portion of the double cylindrical body. Insulation made by providing relay terminals penetrating the board vertically and forming a matching groove on the bottom. An engaging protrusion is provided on one side of the case and the bottom of the holding plate, and one end is attached to the connecting plate. A conductor whose other end is a pin terminal, and the connecting plate part corresponds to the interrupted terminal on one side. bury the pin terminals in a specified direction and in a specified arrangement with the pin terminals exposed on the other side and protruding from the other side. The toroidal core is stored in the core storage section, and the wire is wound. Connect the end of the winding to the relay terminal on the surface of the holding plate, and insert the required insulated terminal plate into the engagement groove. It is a toroidal coil formed by fitting engagement protrusions and attaching it to a holding plate.

[0006]

[Effect]

The relay terminal connects the winding and the conductor buried in the insulated terminal board. Engagement structure and engagement The protrusion is used to assemble the insulated terminal plate to the holding plate and connect the lower end of the relay terminal to the conductor. Press the parts together. The insulated terminal board can be used to replace the pin end by replacing it with another insulated terminal board. Change the child array.

[0007]

【Example】

FIG. 1 is an exploded perspective view of an embodiment of the present invention. In the figure, insulation case 1 is For common mode coils used to suppress common mode electromagnetic noise. The core storage part 2 consists of a bottomed double cylindrical body and an annular lid plate, and the holding plate 3 is a rectangular thick plate. , with the central partition plate 4 integrally provided in the core storage part 2 and the outer peripheral surface corresponding to the partition stand 5. They are connected by a connecting column part 6 and molded in one piece. At the bottom of the holding plate 3, parallel to the short side. Two engaging grooves 7 (dovetail grooves in the figure) are formed near the center, and two engaging grooves 7 (dovetail grooves in the figure) are formed near the four corners of the holding plate 3. A relay terminal 8 is provided therethrough. As shown in FIG. 2, the relay terminal 8 is made by bending a rectangular conductive plate and attaching the upper part to the crimping part 9. A plate-like joint with a slightly curved bottom (exaggerated in the figure) that protrudes downward. This is a terminal with a contact portion 10. The height up to the crimping part 9 is greater than or equal to the thickness of the retaining plate 3. Ru. In the relay terminal 8, the crimp part 9 protrudes from the surface of the holding plate 3, and the contact part 10 protrudes slightly. The curved end surface is parallel to the extending direction of the engagement groove 7. It is installed in such a way. A toroidal core (not shown) is stored in the core storage part 2, and the two windings are centrally connected. Wind the wire through the divided spaces on both sides of the cutting plate 4, and then Figure 1 shows the state in which the coil is fixed to the crimp part 9 of the connecting terminal 8 to form a semi-finished coil. Ru.

[0008] The insulated terminal plate 11 is for vertical installation, and is attached to the surface of a rectangular thick plate corresponding to the holding plate 3. An engaging protrusion 12 that fits into the engaging groove 7 is provided, and the conductor 13 is arranged in the same manner as the relay terminal 8 on the front and back. They are buried in rows. FIG. 3 shows details of the conductor 13. The conductor 13 is , a pin terminal in which a round conductor 13 is formed on most of the length of the rectangular conductive plate except for the upper part. 14, the connecting plate part 15 is bent horizontally so as to cover the upper end surface of the pin terminal. It is molded. The upper surface of the connection plate portion 15 is flush with the surface of the insulated terminal plate 11. is exposed so as to protrude slightly. Since the insulated terminal plate 11 has such a structure, it can be engaged with the engagement groove 7 in the coil semi-finished product. When the protrusions 12 are fitted and installed, due to the elasticity of the retaining plate 3 and the insulated terminal plate 11, The contact portion 10 of the relay terminal 8 and the connection plate portion 15 of the conductor 13 are pressed together, and the winding and the conductor 13 are connected to each other. It conducts and becomes a vertically placed coil. The conductor 16 shown in FIG. 4 is for changing the arrangement of the pin terminals 14. Contact The conductor 1 is exposed on the surface of the insulated terminal plate 11 in the same arrangement as the relay terminals 8. 6 is buried in the insulated terminal plate 11, a different arrangement is made as shown by the broken line circle 24 in FIG. A column of pin terminals 14 is obtained. Standardized using appropriate conductors such as conductor 13 and conductor 16 shown in Figures 3 and 4. Insulated terminal boards 11 with several types of terminal arrangements are made.

[0009] FIG. 6 shows an insulated terminal board 17 for horizontal placement. The insulated terminal plate 17 has an L-shaped cross section. The vertical wall 18 of one of the walls has a height that can almost face the core storage section 2. The other horizontal wall 19 in the figure is rectangular and corresponds to the retaining plate 3, and the surface An engaging protrusion 12 is provided on the (inner surface). The conductor 20 and the conductor 21 hang down the pin terminal 22. The connecting plate portions 23 are made to protrude from the outer surface of the straight wall 18 in a predetermined arrangement, and are attached to the inner surface of the horizontal wall 19. They are exposed and buried in the insulating terminal plate 17 in the same arrangement as the interrupted terminals 8. In FIG. 6, the conductor 20 of the lower pin terminal 22 is connected to the conductor 21 as shown in FIG. Bend it in a Z shape, flatten the lower free end with a press and arrange it into the connecting plate part 23, and then The end is formed into a pin terminal 22. That is, the conductor 21 has an external appearance shown in FIG. As shown, it has a Z-shaped upper and lower side twisted, and the vertical wall 18 and horizontal wall 19 are It is buried diagonally and exposed at the connecting plate portion 23. When the insulated terminal plate 17 is attached to the semi-finished coil shown in Figure 1, a horizontally placed coil will come out. I'm coming up. We have several standardized types of insulated terminal boards 11 and 17 as well as those that meet customer requirements. Then, a product can be manufactured by appropriately attaching the coil to a semi-finished product.

0010

[Effect of the idea]

As is clear from the above explanation, even if the coil storage section is changed depending on the core dimensions, it is retained. If the boards have a common specification, the insulated terminal board can be commonly attached to semi-finished coil products. The number of materials used is reduced, semi-finished coil products can be manufactured more efficiently, and materials and labor management are easier. , the economic effect of reducing inventory is extremely large, and it also makes it easier to respond to customer requests. We can provide excellent toroidal coils that are marketable and have good effects.

[Brief explanation of drawings]

FIG. 1 is an exploded perspective view showing an embodiment of the present invention.

FIG. 2 is an external perspective view showing an example of a relay terminal used in the present invention.

FIG. 3 is an external perspective view showing a conductor embedded in an insulated terminal board according to the present invention.

FIG. 4 is an external perspective view showing another conductor embedded in the insulated terminal board according to the present invention.

FIG. 5 is an external perspective view showing another example of the insulated terminal plate.

FIG. 6 is an external perspective view showing another conductor embedded in the insulated terminal board according to the present invention.

[Explanation of symbols]

1 Insulating case 2 Core storage section 3 Holding plate 4 Central partition plate 5 Partition stand 6 Connecting column part 7 Engagement groove 8 Relay terminal 9 Crimp part 10 Contact part 11, 17 Insulated terminal board 12 Engagement protrusion 13, 16, 20, 21 conductor 14, 22 pin terminal 15, 23 Connection plate part 18 Vertical wall 19 Horizontal wall 24 Broken line circle

Claims (1)

[Scope of utility model registration request] Claim 1: An insulating case comprising a retaining plate integrally provided on the outer circumferential surface of a core storage portion of a double cylindrical body, relay terminals vertically penetrating through the retaining plate, and connecting grooves formed in the bottom surface. , an engaging protrusion is provided on one side of the size corresponding to the bottom surface of the holding plate, and the conductor, one end of which is the connecting plate and the other end is a pin terminal, is exposed at a location corresponding to the terminal by interrupting the connecting plate on one side. The toroidal core is housed in the core housing part, the winding is applied, and the end of the winding is A toroidal coil that is connected to a relay terminal on the surface of a holding plate, and the required insulated terminal plate is attached to the holding plate by fitting the engagement protrusion into the engagement groove.