JPH0615251U - Deflection yoke device - Google Patents

Abstract

(57) [Abstract] [PROBLEMS] To provide a deflection yoke device in which a lead wire of a deflection coil can be easily and easily wired safely on insulation. [Structure] A dedicated routing groove 10 for a lead wire of a vertical deflection coil is provided on an outer peripheral surface of a neck-side enlarged diameter portion 4b of a bobbin 2. Similarly, a dedicated routing groove for the lead wire of the horizontal deflection coil is formed on the outer peripheral surface of the head side enlarged diameter portion 4a of the bobbin 2.
Forming 20. In addition, relay terminals 11 and 13 are provided at arbitrary positions on the collar 3 of the enlarged diameter portions 4a and 4b for bending and stopping the lead wires.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a deflection yoke device mounted on a television receiver, a display device or the like.

[0002]

[Prior art]

 FIG. 3 shows a deflection yoke device mounted on a cathode ray tube of a television receiver or a display device. In this type of deflection yoke device 1, horizontal deflection coils (not shown) are attached to the top side and the bottom side along the inner peripheral surface of a bobbin 2 having a bosh-like shape, and a vertical deflection coil (not shown) is provided outside the bobbin 2. A core (not shown) is attached to the outer side of the core (not shown). Further, enlarged diameter portions 4a and 4b are formed on the head side and the neck side of the bobbin 2.

As is well known, with the recent trend toward larger size and higher definition of television receivers and display devices, it is necessary to improve various characteristics of deflection yoke devices mounted on these devices. Therefore, the applicants have proposed a deflection yoke device as shown in FIG. This deflection yoke device moves, for example, the X-axis (horizontal axis) green G beam of the screen of the cathode ray tube in the vertical direction to correct the misconvergence (green sensitivity) of the green G with respect to the red R and blue B beams. The FC (Field Control) coil 6 for doing so is attached to the neck side enlarged diameter portion 4b side to correct the misconvergence. In addition, a leakage magnetic field prevention coil 7 for preventing radiation of a leakage magnetic field, which is said to have a possibility of adversely affecting a pregnant woman, for example, when a magnetic field leaks from the screen side of the cathode ray tube, is attached to the head of the bobbin 2. It is attached to the side of the enlarged diameter portion 4a to prevent leakage of the leakage magnetic field to the outside.

A circuit board 5 is mounted on the neck-side enlarged diameter portion 4b side of the bobbin 2, and a conductor pattern of a wiring circuit is formed on the circuit board 5. The lead wire 9 of the vertical deflection coil is covered with an insulating tube or the like, guided from the central portion side of the enlarged diameter portion 4b to the circuit board 5 in a dangling state of the aerial wiring, and connected to the terminal 15 of the circuit board 5. It is connected to the FC coil 6 via 15. The lead wire 9 may be directly connected to the FC coil 6 without passing through the circuit board 5.

The lead wire 8 of the horizontal deflection coil covered with an insulating tube or the like is connected to the terminal 14 of the circuit board 5 from the side of the neck-side enlarged diameter portion 4b, and the long air wiring is hung through the terminal 14. In this state, it is connected to the leakage magnetic field prevention coil 7 on the head side enlarged diameter portion 4a side.

[0006]

[Problems to be solved by the device]

 However, the lead wire 8 of the horizontal deflection coil and the lead wire 9 of the vertical deflection coil are both wired on the neck side enlarged diameter portion 4b side, and in order to secure the withstand voltage of the horizontal deflection coil and the vertical deflection coil. Since it is necessary to provide a constant space between the lead wire 8 of the horizontal deflection coil and the lead wire 9 of the vertical deflection coil, there is a problem in terms of insulation safety. Further, since the lead lines 8 and 9 are laid out in an aerial state in a dangling state, there is a problem that it is difficult to develop the automatic wiring.

The present invention has been made to solve the above problems, and an object of the present invention is to provide a deflection yoke device capable of wiring a lead wire of a deflection coil simply, easily, and safely on insulation. To provide.

[0008]

[Means for Solving the Problems]

 The present invention is configured as follows to achieve the above object. That is, the present invention is a deflection yoke device in which a horizontal deflection coil and a vertical deflection coil are mounted on a bobbin having enlarged diameter portions on the head side and the neck side. A lead-out groove for the vertical deflection coil or a lead wire for wiring the lead-out groove is formed on the outer peripheral surface of the diameter portion, and a lead wire for the horizontal deflection coil is formed on the outer peripheral surface of the enlarged diameter portion on the bobbin head side. Is characterized in that it has a groove for routing.

[0009]

[Action]

 When wiring the deflection coil to the bobbin, wire the lead wire of the vertical deflection coil along the routing groove of the enlarged diameter portion on the neck side, and the lead wire of the horizontal deflection coil to the lead portion of the enlarged diameter portion on the head side. Wire along the groove. By separating the lead wire of the vertical deflection coil on the neck side and the lead wire of the horizontal deflection coil on the head side in this way, the lead wire of the horizontal deflection coil and the lead wire of the vertical deflection coil are insulated. To ensure the safety of.

[0010]

【Example】

 Embodiments of the present invention will be described below with reference to the drawings. In the description of the present embodiment, the same names as those in the proposed example will be denoted by the same reference numerals, and detailed description thereof will be omitted. FIG. 1 shows an explanatory view of the main configuration of the deflection yoke device according to this embodiment. The characteristic of the present embodiment is that a lead-out groove 10 dedicated to the lead wire of the vertical deflection coil is formed on the outer peripheral surface of the neck side enlarged diameter portion 4b of the bobbin 2, and the head side enlarged diameter portion 4a of the bobbin 2 is formed. That is, a routing groove 20 dedicated to the lead wire of the horizontal deflection coil is formed on the outer peripheral surface.

A plurality of collars 3 are provided along the outer peripheral surface of the neck side and head side enlarged diameter portions 4b, 4a, and a plurality of grooves 10, 20 are formed between the collars. The grooves 10 and 20 are defined by the collar 3, and are formed as guide wire routing grooves 10 and 20 along the outer peripheral surfaces of the enlarged diameter portions 4a and 4b. In addition, terminals 11 and 13 of a general shape are provided at arbitrary positions on the collar 3 of the head-side enlarged diameter portion 4a and the neck-side enlarged diameter portion 4b, respectively, for pulling out the lead wire. A circuit board 5 is bridged between the portion 4b and the head-side enlarged diameter portion 4a.

Further, a pair of leakage magnetic field preventing coils 7 are provided on the peripheral end side of the head side enlarged diameter portion 4a, and a pair of FCs are provided on the rear end side of the neck side enlarged diameter portion 4b. The coil 6 is arranged.

Next, the operation of wiring the deflection coil of this deflection yoke device will be described. First, the lead wire of the horizontal deflection coil attached to the inner peripheral surface of the bobbin 2 is led along the dedicated lead groove 20 of the head side enlarged diameter portion 4a, and this lead wire is connected to the terminal 11 provided on the enlarged diameter portion 4a. The lead wire is connected to the leakage magnetic field prevention coil 7 with the terminal 11 as a relay point. Alternatively, the lead wire is connected from the relay terminal 11 to the connection terminal 14 of the circuit board 5, and is connected to the leakage magnetic field preventing coil 7 via the connection terminal 14.

Further, the lead wire of the vertical deflection coil mounted on the outer peripheral surface of the bobbin 2 is routed along the dedicated routing groove 10 of the neck side enlarged diameter portion 4b. The wire is twisted to the terminal 13 and temporarily fixed with solder, the terminal 13 is connected to the connection terminal 15 of the circuit board 5 as a relay point, and the lead wire is connected to the FC coil 6 through the connection terminal 15. Alternatively, the lead wire is directly connected to the FC coil 6 from the relay terminal 13.

According to the present embodiment, the neck-side enlarged diameter portion 4b and the head-side enlarged diameter portion 4a of the bobbin 2 are provided on the outer peripheral surfaces thereof with the respective routing grooves 10 and 20 dedicated to the lead wire of the deflection coil. , The terminals 11 and 13 are provided so that the lead wires of the horizontal deflection coil and the vertical deflection coil are separated into the head side enlarged diameter portion 4a and the neck side enlarged diameter portion 4b, respectively, and are routed and wired. The troublesome wiring work of covering such a lead wire with an insulating tube is eliminated, and the lead wiring of the deflection coil is simplified. Also, as in the proposed example, the lead wire of the horizontal deflection coil is connected from the neck side enlarged diameter portion 4b to the connection terminal 14 of the circuit board 5, and the long distance from the connection terminal 14 to the head side enlarged diameter portion 4a. No need to wire in the air. The lead wire of the horizontal deflection coil is routed in the routing groove 20 of the head side enlarged diameter portion 4a, and the leakage magnetic field prevention coil 7 is routed through the relay terminal 11. Since it can be connected over a short distance, wiring work can be automated and work efficiency can be significantly improved. Also, since the horizontal deflection coil and the vertical deflection coil are separately wired, there is no concern about contact on the wiring, and insulation safety is improved.

Further, in the deflection yoke device mounted on the display device or the like, since the FC coil 6 is connected to the vertical deflection coil and the leakage magnetic field preventing coil 7 is connected to the horizontal deflection coil, as in this embodiment. The lead wire of the vertical deflection coil is installed in the FC coil 6 installed on the neck side enlarged diameter portion 4b side of the bobbin 2, and the lead wire of the horizontal deflection coil is installed on the head side enlarged diameter portion 4a side. It is convenient to connect the F C coil 6 to the vertical deflection coil and the leakage magnetic field preventing coil 7 to the horizontal deflection coil, and the wiring work can be performed very efficiently.

[0017]

[Effect of device]

 The present invention provides a dedicated routing groove for the lead wire of the vertical deflection coil on the outer peripheral surface of the enlarged diameter portion on the neck side of the bobbin, and a dedicated lead wire for the horizontal deflection coil on the outer peripheral surface of the enlarged diameter portion on the head side. Since the lead-out lines of the vertical deflection coil and the horizontal deflection coil are separated into the neck-side enlarged diameter portion and the head-side enlarged diameter portion, respectively, and the lead-out wiring is provided, a wiring groove is provided. There is no troublesome wiring such as covering the lead wire with an insulating tube, the wiring can be easily routed, and since the lead wire can be wired in a short distance, the wiring work can be automated and the work efficiency is greatly improved. can do. Also, since the horizontal deflection coil and the vertical deflection coil are separately wired, there is no concern about contact on the wiring, and insulation safety is improved.

[Brief description of drawings]

FIG. 1 is an explanatory diagram of a main part configuration of a deflection yoke device according to an embodiment.

FIG. 2 is an explanatory diagram of a main configuration of a deflection yoke device of a proposed example.

FIG. 3 is an explanatory diagram of a conventional deflection yoke device.

[Explanation of symbols]

 2 Bobbin 4a Head side enlarged diameter part 4b Neck side enlarged diameter part 6 FC coil 7 Leakage magnetic field prevention coil 10 Neck side routing groove 20 Head side routing groove

Claims (1)

[Scope of utility model registration request] 1. A deflection yoke device in which a horizontal deflection coil and a vertical deflection coil are mounted on a bobbin having an enlarged diameter portion formed on the head side and the neck side, and an outer periphery of the enlarged diameter portion on the neck side of the bobbin. A guide groove for the lead wire of the vertical deflection coil is formed on the surface, and a guide groove for the lead wire of the horizontal deflection coil or a lead wire for the wire is formed on the outer peripheral surface of the enlarged diameter portion on the head side of the bobbin. A deflection yoke device, wherein: