JPH04249772A - Cross coil type meter - Google Patents

Abstract

PURPOSE:To achieve the automation of manufacturing and the enhancement of the reliability of electric connection by effectively putting a coil winding area into practical use and setting an electric element main body and the lead wire connection part thereof at the position near to a housing. CONSTITUTION:A terminal with a contact is pointed to the terminal insertion hole of a housing and, after the winding of a coil, the terminals 15,16 with screws of a structure together having electric element connection, external signal connection and the connection of the terminal with the contact and a spring contact and an intermediate terminal 17 of a structure together having electric element connection and the spring contact of the terminal with the contact are formed into a shape putting even a coil wiring area into practical use to be bonded to the housing after the winding of the coil.

Description

[Detailed description of the invention]

0001

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a crossed coil type meter having particular features in its terminal structure.

0002

[Prior Art] As a conventional crossed coil type meter, as shown in Fig. 8,
There are structures as shown in FIGS. 9 and 10. In the figure, 1 is a lower housing, 2 is an upper housing, and a movable magnet 4, which fixes a pointer shaft 3, is attached to the inner space formed by the combination of both housings 1 and 2. It is rotatably supported via 3. Also, on the outside of both housings 1 and 2,
A cross coil 5 is wound and held around the housings 1 and 2 as bobbins. Reference numeral 6 designates a meter case, and the lower end portion of a terminal 8 is fastened to a boss portion 7 formed on this meter case 6 with a mounting screw 9. 1 passes through a terminal insertion hole 10 formed in the axial direction of the pair of housings 1 and 2, and the winding end of a cross coil 5 is connected to the penetrated tip by soldering 11. It is. Further, at the lower end of the terminal 8, there is a claw part 8-2 for positioning the terminal 8 on the lower housing 1, a connecting part 8-3 for connecting an electric element 12 such as a resistor, and a connecting part 8-3 for connecting the electrical element 12 such as a resistor. A screw hole 8-4 for a mounting screw 9, which is screwed into the meter case 6 and serves as an external signal connection part, is formed. 20
The crossed coils 5,
A magnetic shielding case attached to magnetically shield the rotating body 4 is shown.

0003

[Problems to be Solved by the Invention] However, in such conventional crossed coil type meters, terminal 8
However, the lead part 8-1 for fixing the coil winding end and the electric element connecting part 8-3 are integrally arranged and are located only on the two pairs of mutually opposing columnar parts of the housings 1 and 2, and the electric element Since the connection part 8-3 has a structure that must be formed within an area of the thickness of the columnar part, the coil winding area cannot be used effectively, and the forming shape of the lead wire of the electric element is therefore complicated. Moreover, the lead wire forming part of the electric element is difficult to manufacture because the lead connection part is quite far from the main body of the electric element, and the wiring is close to other electric element connection parts. In addition, when handling, external force is applied to the electric element, which easily causes a short circuit between the lead wires.Furthermore, when the instrument is downsized, it is difficult to form the electric element connection part 8-3 in terms of manufacturing. There was a problem.

0004

[Means for Solving the Problems] The present invention has been made in view of the above-mentioned problems of the prior art.A terminal with a contact point is first attached to a terminal insertion hole of a housing, and after winding a coil, an electric element is connected. and an intermediate terminal having a structure that has both an external signal connection and a connection with the spring contact of the terminal with contacts, and an intermediate terminal with a structure that has both the connection of an electric element and the connection with the spring contact of the terminal with contacts, and a coil winding. With a shape that also utilizes the line area,
It is an object of the present invention to provide a cross-coil type meter having a structure that can be retrofitted to a housing after winding the coil and solving the conventional problems.

[0005]

[Embodiment] The present invention will be explained in detail below based on the embodiment shown in Figs. , and the explanation of the same structural parts will be omitted.

Reference numeral 14 denotes a terminal with a contact that passes through a terminal insertion hole 10 formed in the axial direction of the pair of housings 1 and 2. As shown in FIG. 1, a lance 14-3 for preventing detachment, and a spring contact portion 14- bent inward.
It has 2. 15 and 16 are threaded terminals fixed to the lower housing 1, and the threaded terminal 15 is connected to the terminal 1 as shown in FIG.
4, a locking claw 15-2 for positioning on the lower housing 1, a connecting part 15-3 for connecting the electric element 12, and a screw for connecting an external signal line. A hole 15-4 is formed. Further, as shown in FIG. 5, the threaded terminal 16 is provided with a connecting piece 16-1 to be connected to the terminal 14 and a locking claw 16-2 for positioning on the lower housing 1. 17 is an intermediate terminal, and in this intermediate terminal 17,
Connection part 1 for connecting electric element 12 as shown in FIG.
7-3 and a connecting piece 17 connected to the terminal 14.
-1 and a locking pawl 17-2 for positioning the intermediate terminal 17 in the lower housing 1.

The above are the terminals 14 according to this embodiment.
, 15, 16, and 17, and its operation will be described next.

First, the movable magnet 4 and the pointer shaft 3 are built in between the housings 1 and 2, and then the terminal 14 with contacts is assembled into the insertion hole 10 of the housings 1 and 2. In this state, since there is no terminal that becomes an obstacle when winding the coil 5 around both the housings 1 and 2 as bobbins, the coil 5 can be wound without any problem. Next, the terminal is wound around the lead part 14-1 of the contact terminal 14 and soldered, and then the lead part is bent to give slack to the coil. (See Fig. 2) After that, the threaded terminals 15, 16 and the intermediate terminal 17 are inserted with their connecting pieces 15-1, 16-1, and 17-1 into the spring contact portion 14-2 of the contact terminal 14 for electrical connection. Then, each locking claw 15-2, 16
-2 and 17-2 to fix it to the housing 1. Finally, the lead wire portion of the electric element 12 is formed as shown in the figure, and is fixed to the electric element connecting portions 15-3 and 17-3 of the terminals 15 and 17, followed by soldering.

[0009]

As described above, the present invention provides a pointer shaft 3 to which a movable magnet 4 is fixed, an upper housing 2 and a lower housing 1 that rotatably accommodate and support the movable magnet 4, and both housings 1 and 2. In a crossed coil type meter equipped with a plurality of coils 5 wound perpendicularly to each other around the outer periphery, the terminal 14 with contacts is attached to the housing 1,
The screw terminals 15 and 16 are inserted into the terminal insertion hole 10 of No. 2, and have a structure that connects an electric element, an external signal, and connects with the contacts of the terminal with contacts, and connects the electric element with the contacts of the terminal with contacts. The intermediate terminal 17 has a structure that also has connections, and the threaded terminal 15 has a shape that also utilizes the coil winding area.
16 and intermediate terminal 17 are fixed to the housing after the coil has been wound, so the coil winding area can be effectively used to ensure that the electrical element body and its lead wire connections are connected to the housing. Can be set close to each other. In addition, the forming shape of the lead can be made into a simple shape, making it easy to manufacture and assemble the lead forming, being strong against deformation due to external force of the electric element, and ensuring clearance between the lead and other electrical connections. This avoids the risk of short circuits between lead wires. Furthermore, by providing an inexpensive terminal with contacts and locating other terminals in the coil winding area for effective use, it is possible to simplify manufacturing, automate it, and improve the reliability of electrical connections in a relatively compact and inexpensive manner. This effect can be obtained.

[Brief explanation of the drawing]

FIG. 1 is an explanatory plan view showing an embodiment of a crossed coil type meter of the present invention.

FIG. 2 is an explanatory diagram showing the internal structure of this embodiment.

FIG. 3 is a bottom explanatory diagram of this embodiment.

FIG. 4 is a perspective view of the threaded terminal of this embodiment.

FIG. 5 is a perspective view of the threaded terminal of this embodiment.

FIG. 6 is a perspective view of the terminal with contacts of this embodiment.

FIG. 7 is a perspective view of the intermediate terminal of this embodiment.

FIG. 8 is a cross-sectional explanatory diagram of a conventional crossed coil type meter.

FIG. 9 is a perspective view of a conventional terminal.

FIG. 10 is an explanatory plan view of a conventional crossed coil type meter.

[Explanation of symbols]

14: Terminal with contact 14-1:
Lead part 14-2: Spring contact part
14-3: Lance 15: Threaded terminal
15-1: Connection piece 15-2: Locking claw
15-3: Connection part 15-4: Screw hole 15-5: Connection part 16: Threaded terminal 16-1
: Connection piece 16-2: Locking claw 17: Intermediate terminal 17-
1: Connection piece 17-2: Locking claw
17-3: Connection part 17-4: Connection part

Claims (1)

[Claims] 1. A pointer shaft (3) to which a movable magnet (4) is fixed, an upper housing (2) and a lower housing (2) that rotatably accommodate and support the movable magnet (4).
1) and a plurality of coils (5) wound perpendicularly to each other around the outer periphery of the housings (1) and (2), the terminal with contacts (14)
into the terminal insertion holes (10) of the housings (1) and (2).
), and the screw terminals (15) and (16) have a structure that connects an electric element, connects an external signal, and connects the contacts of the terminal with contacts, and connects the electric element with the contacts of the terminal with contacts. The intermediate terminal (17) has a structure that also provides connections, and the threaded terminals (15) and (16) have a shape that also utilizes the coil winding area.
) and an intermediate terminal (17) are fixed to a housing after winding the coil.