JPS6390111A - Cr composite device with duscharge gap - Google Patents

Abstract

(57) [Abstract] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Detailed description of the invention] Industrial application fields> The present invention relates to a CR composite element with a discharge gap.

<Prior Art> CR composite elements with discharge pins are often used in devices that supply high-frequency signals from antennas and the like to tuners, one of which is known as one that uses a plate-shaped dielectric.

<Problems to be Solved by the Invention> By the way, in conventional devices of this kind, most of the conductive member for forming the discharge gear V-tube and its surroundings are exposed to the outside, and as a result, the surroundings of the conductive member Due to the adhesion of foreign matter to the battery, the discharge characteristics may change, and there is a possibility that the initial purpose may not be achieved after long-term use.

In addition, in conventional elements, a plate-shaped dielectric is used, so in order to obtain a capacitor with a predetermined capacity, the capacitor must be large in size, and there is a demand for miniaturization of the supply device. The problem is to respond to this.

The present invention has been made in view of the above points, and its object is to provide a CR composite element with a discharge gap that can prevent deterioration of the discharge characteristics in a tri-electric electric guitar knob, and which can also be miniaturized. The purpose is to provide a method for manufacturing.

<Means for Solving the Problems> According to the present invention, the object is to provide a cylindrical ceramic dielectric, one capacitor electrode formed on one surface of the dielectric, and the other Xt body. the other capacitor electrode formed on one surface; a resistor provided on the dielectric by electrically bridging the opposing edges of the one and the other capacitor electrodes; A pair of lead members electrically connected to each other, a discharge gap provided to discharge electric charge of a certain value or more generated in one and the other capacitor electrodes, the ceramic dielectric, one and the other capacitor electrodes, and a resistor. An electrically insulating surrounding body is provided surrounding the body, and the discharge gap is achieved by a CR composite element with a discharge gap that is substantially isolated from the outside by this surrounding body.

Further, the present invention provides a cylindrical ceramic dielectric and this ceramic I? One capacitor electrode formed on one surface of body Ii and the ceramic 2! ! the other capacitor electrode formed on the other surface of the electric body; a resistor provided on the ceramic dielectric by electrically bridging opposing edges of the one and the other capacitor electrodes; a discharge gap formed between the edges of the one and the other capacitor electrodes in a hollow space surrounded by a cylindrical inner surface of a ceramic dielectric; in which both open end faces of the hollow space are closed, lead members are electrically connected to the one and the other capacitor electrodes, and the lead members are connected and both open end faces of the hollow space are closed. A method of manufacturing a CR composite element with a discharge gap as described above by immersing the combination in a molten electrical insulating material in order to surround the dielectric, one and the other capacitor electrodes, and the resistor with an electrically insulating enclosure. I will provide a.

Furthermore, the present invention provides a cylindrical ceramic dielectric, one capacitor electrode formed on one surface of the ceramic dielectric, and the other capacitor electrode formed on another surface of the ceramic dielectric. and a resistor provided in a ceramic dielectric by electrically bridging opposing edges of the one and the other capacitor electrodes, and a space surrounded by a cylindrical inner surface of the ceramic dielectric. a filled electrical insulator, a lead member electrically connected to the one and the other capacitor electrodes, one end of which is electrically connected to one of the lead members, and the other end of which is electrically connected to the other of the lead member. Prepare a combination body consisting of connected electrical members 1j, and in this combination body, the 011 ceramic dielectric, one and the other capacitor electrodes, the resistor, the electrical insulator, and the conductive member are surrounded by an electrically insulating enclosure. After this enclosing, the enclosing body is cut until the conductive member is cut, and a discharge gap is formed between the end faces of the cut conductive member, thereby manufacturing a CR composite element with a discharge gap as described above. Provided.

<Function> In the CR composite element with a discharge gap of the present invention, since the discharge gap is substantially isolated from the outside by the four-unit body, the enclosing body can prevent foreign matter from entering the discharge gap, and the surrounding body can prevent foreign matter from entering the discharge gap. Result discharge gi 1! The adhesion of foreign matter to the tube can be reduced or eliminated, and since the dielectric is cylindrical, opposing capacitor electrodes can be formed continuously on the outer and inner surfaces of the cylindrical dielectric, making it possible to form a small capacitor with a predetermined 8 sides. can be assumed to be right.

Specific example> Next, the present invention will be explained based on specific examples shown in the drawings.

1, 2, and 4, a cylindrical outer surface 2, a cylindrical inner surface 3, and an annular end surface 4.5 of a cylindrical dielectric 1 made of ceramic or the like have a pair of capacitor electrodes 6 and 7 are provided. electrodes 6 and 7
A capacitor (C) 8 is also formed by the dielectric 1. Parts of the opposing annular edges 9 and 10 of the electrodes 6 and 7 are electrically bridged by a resistor 11, and in this way the resistor 11 provided on the dielectric 1 provides a resistance (
R) 12 is formed. A space 13 surrounded by the surface 3 in the dielectric 1 is hollow, and the hollow space 13
A discharge gap 16 is formed between the other opposing annular edges 14 and 15 of the electrodes 6 and 7 .

Due to the gap 16, the charges generated in the electric charges Fi6 and Fi7, which exceed a certain value, can be discharged. Disc-shaped conductive members 19 and 20 are attached to the electrodes 6 and 7 to close off both end faces 11 and 18 of the space 13, respectively, and lead members 21 and 22 are attached to the conductive members 19 and 20, respectively. installed. The conductive members 19 and 20 can be attached to the electrodes 4 and 5, and the lead members 21 and 22 can be attached to the conductive members 19 and 20, respectively, using the conductive material 23 or the like. Therefore, the lead member 21, the conductive member 1
9 and electrode 6 are each electrically connected to phase U, and lead member 22, conductive member 20, and electrode 7 are each electrically connected to each other. Dielectric 1, electrodes 6 and 7, resistor 11
Parts of the lead members 21 and 22 are surrounded by a surrounding body 24 made of an electrically insulating material.

CR composite with discharge gap formed in this way
In the element 30, since the discharge gap 16 is located in the space surrounded by the surrounding body 24, there is no foreign matter attached to the discharge gap 1d during use, and the discharge characteristics of the discharge gap 16 can be maintained for a long period of time. In addition, since the dielectric 1 is cylindrical, the capacitor 8 having a predetermined capacity can be made smaller than that of a plate-shaped dielectric, and the device itself can be made smaller.

Such an element 30 obtains 11fIL as follows.

First, the dielectric 1, the electrodes 6, 7 formed on the surfaces 2, 3, 4, and 5 of the dielectric 1, and a portion of the edges 9 and 10 are electrically bridged. resistor 11 and space 1
3, a combination consisting of a discharge gap 16 formed between edges 14 and 15 is first prepared. In this prepared combination, the open ends 11 and 18 of the space 13
, conductive members 19 and 20 are attached to electrodes 6 and 7 via conductive adhesive 23, respectively, and lead members 21 and 22 are attached to conductive members 19 and 20 respectively, and conductive adhesive 23 is attached to conductive members 19 and 20, respectively. In this way, the lead member 2
1 and 22 are connected and the end faces 17 and 18 are sealed, the assembly is immersed in a molten electrical insulating material to form the dielectric 1, electrode 6, resistor 11, conductive member 19, 20.
The device 30 is manufactured by solidifying the molten electrically insulating material to form a surround 24 that surrounds the conductive adhesive 23 and a portion of the lead members 21,22.

In the above description, the gap 16 is formed in the space 13, but the present invention is not limited thereto. That is, as shown in FIG. 3, the space 13 is filled with an electrically insulating member 31 to make the space 13 solid, while each of the lead members 21 and 22 is filled with a conductive member for forming a discharge gap. One ends 33.34 of the conductive members 31a and 32 are attached via the conductive adhesive 23 to electrically connect the one ends 33.34 of the conductive members 31a and 32 to the electrodes 6 and 7, respectively. A recess 35 is formed in the surrounding body 24 surrounding the conductive member 32, and the end surfaces 38 and 39 of the other ends 36 and 37 of the conductive members 31a and 32 are arranged so as to face each other and to be exposed to the outside, A discharge gap 40 may be formed by the end faces 38 and 39 to constitute a CR composite element 50 with a discharge gap. The electrical equivalent circuit of this element 50 is also the same as that shown in FIG.

In the element 50 as well, since the discharge gap 40 is formed in a space substantially isolated from the outside, that is, in the recess 35, the adhesion of foreign matter to the discharge gap 40 is greatly reduced, and the discharge characteristics are maintained over a long period of time. can be maintained.

Such a device 50 may also be manufactured as follows.

First, as shown in FIG. 5, a resistor is provided on the dielectric 1 by electrically bridging the edges 9 and 10 with the electrodes 6 and 7 formed on the surface of the dielectric 1. body 11 and space 13
an insulator 31 filled with an insulator 31, lead members 21 and 22 electrically connected to the electrodes 6 and 7, respectively, one end 33 of which is electrically connected to the lead member 21, and the other end 34 of which is electrically connected to the lead member 22. The combination body 52 consisting of the conductive member 51
This combination 52 is then immersed in molten electrical insulating material to form the dielectric 1, electrode 6.7, resistor 11, electrical insulator 31, conductive member 51, and conductive adhesive. 23 and a portion of the lead members 21 and 22 is formed by solidifying the molten electrically insulating material, and the surrounding body 2
After forming 4, the surrounding body 24 is cut at position @53 until the 1F [portion 4451 is cut, and this cut forms a recess 35 in the surrounding body 24, and the end face 38 of the cut conductive member 51 is cut. A discharge gap 40 is formed between and 39 to form an element 50 of %A.

In this method of manufacturing the element 50, by appropriately adjusting the width of the cut into the surrounding body 24, the gap length can be appropriately set, and it is possible to easily and quickly meet the requirements for different discharge characteristics. The number of manufacturing steps can be greatly reduced.

Note that in the specific example of the element 30, the conductive members 19 and 2
0 to close the end surfaces 17 and 18 and electrically connect the lead members 21 and 22 to the electrodes 6 and 7 via the conductive members 19 and 20, respectively. t) directly electrically connect the lead members 21 and 22 to the electrodes 6 and 7 without using the main members 19 and 20; You can do it like this. Furthermore, the one ends 33 and 34 of the conductive members 31a and 32 do not need to be directly connected to the lead members 21 and 22, respectively, and may be directly connected to the electrodes 6 and 7.

<Effects of the Invention> As described above, according to the present invention, since the discharge gap is formed to be substantially isolated from the outside, attachment of foreign matter to the discharge gap can be substantially reduced, and the discharge Changes in discharge characteristics in the gap can be eliminated, initial discharge characteristics can be obtained over a long period of time, and in addition, since the dielectric is cylindrical, a capacitor with a desired capacity and weight can be realized in a small size. This can fully meet the demand for miniaturization of equipment a.

[Brief explanation of the drawing]

FIG. 1 is a sectional view of a preferred embodiment of the present invention;
The figure is a cross-sectional view taken along the IF-It line of the specific example shown in FIG. 1, FIG. 3 is a cross-sectional view of another preferred specific example according to the present invention, and FIG. 4 is an electrical FIG. 5 is an explanatory diagram of a manufacturing method of a specific example based on FIG. 3. 1...Ceramic dielectric, 6,7...
Electrode for condenser, 11... Resistor, 16.4
0...Discharge gap. Figure 1 Figure 2? n Figure 3

Claims (5)

[Claims] (1) A cylindrical ceramic dielectric, one capacitor electrode formed on one surface of the dielectric, the other capacitor electrode formed on the other surface of the dielectric, and the one and a resistor provided on a dielectric material by electrically bridging opposing edges of the other capacitor electrode; a pair of lead members electrically connected to one and the other capacitor electrodes; and one and the other capacitor electrodes. A discharge gap provided to discharge electric charge of a certain value or more generated in the capacitor electrode of the capacitor, and an electrically insulating surrounding body provided to surround the ceramic dielectric, one and the other capacitor electrodes, and the resistor. , C with a discharge gap, wherein the discharge gap is substantially isolated from the outside by the surrounding body.
R complex element. (2) The ceramic dielectric has a cylindrical inner surface and a cylindrical outer surface, and the space surrounded by the inner surface is hollow, and in this hollow part, one side and the other side are 2. The CR composite element with a discharge gap according to claim 1, wherein the discharge gap is formed between opposing edges of capacitor electrodes. (3) the ceramic dielectric has a cylindrical inner surface and a cylindrical outer surface, and the space surrounded by the inner surface is filled with an electrically insulating member to make it solid;
One end of one conductive member for forming a discharge gap is electrically connected to the one capacitor electrode, and one end of the other conductive member for forming a discharge gap is electrically connected to the other capacitor electrode. The one and the other conductive members are surrounded by the surrounding body except for the other end surfaces of the one and the other conductive members, and a recess is formed in the surrounding body. In this recess, the other end surfaces of the one and the other conductive members are arranged to face each other and are exposed to the outside, and between the other end surfaces of the one and the other conductive members, the The CR composite element with a discharge gap according to claim 1, wherein a discharge gap is formed. (4) a cylindrical ceramic dielectric; one capacitor electrode formed on one surface of the ceramic dielectric; the other capacitor electrode formed on another surface of the ceramic dielectric; A resistor is provided in a ceramic dielectric by electrically bridging opposing edges of one and the other capacitor electrodes, and a resistor is provided in a hollow space surrounded by a cylindrical inner surface of the ceramic dielectric. A discharge gap formed between the edges of the other capacitor electrode is prepared, and in this combination, both open end surfaces of the hollow space are closed, and lead members are attached to the one and other capacitor electrodes, respectively. are electrically connected to each other, and in a combination body to which the lead member is connected and both open end faces of the hollow space are closed, the ceramic dielectric, one and the other capacitor electrodes, and the resistor are connected by an electrically insulating surrounding body. A method of manufacturing a CR composite element with a discharge gap by immersing the assembly in a molten electrically insulating material for enclosing. (5) a cylindrical ceramic dielectric; one capacitor electrode formed on one surface of the ceramic dielectric; the other capacitor electrode formed on another surface of the ceramic dielectric; A resistor is provided in a ceramic dielectric by electrically bridging opposing edges of one and the other capacitor electrodes, and electricity is filled in a space surrounded by a cylindrical inner surface of the ceramic dielectric. a lead member electrically connected to the one and the other capacitor electrodes, and a conductor whose one end is electrically connected to one of the lead members and the other end is electrically connected to the other of the lead member. A combination body consisting of members is prepared, and in this combination body, the ceramic dielectric, one and the other capacitor electrodes, a resistor, an electrical insulator, and a conductive member are surrounded by an electrically insulating surrounding body, and after this surrounding, The surrounding body is cut until the conductive member is cut, and a discharge gap is formed between the end faces of the cut conductive member to form a discharge gap C.
A method of manufacturing an R composite element.