JP3054265U - Terminal block for wiring connection - Google Patents

Abstract

(57) [Summary] [Object] To simplify the structure of a terminal block used as a connecting device for connecting household electrical equipment and the like to indoor wiring, and to configure an accurate and stable connection state. A detachable terminal fitting 1 connected to a device-side conductor 15 is attached to and detached from an insulator housing 10 to be connected to a power supply-side conductor 9, and the detachable terminal fitting 1 has an elasticity. An elastic contact piece 2 having a contact piece accommodating portion 5 and a holding portion for the power supply side conductor 9 and a flexible contact portion in the accommodating portion 5.
Are provided.

Description

[Detailed description of the invention]

[0001]

[Technical field to which the invention belongs]

 The present invention relates to the invention of a terminal block for wiring connection, which simplifies the configuration of a terminal block used as a connecting device for connecting an electric refrigerator, an air conditioner, and other household electric appliances to the indoor wiring, as well as accurately and precisely. It is intended to form a stable connection state.

[0002]

[Prior art]

 In the case of electric appliances such as electric refrigerators and room air conditioners installed in homes, when extracting electricity from the indoor wiring that is the power source, the electric wires in the room are round single wires with a diameter of about 1.5 to 2 mm. A copper wire covered with an insulating coating is used, and the electric wire in an appliance is a stranded wire consisting of a collection of thin conductive wires, which is insulated and coated. Generally, a terminal block is used to connect these.

[0003] That is, a typical example of such a terminal block conventionally used is as shown in FIGS. 3 and 4, in which a base plate made of electric steel is placed in a housing 10 made of bakelite or other insulating material. 11 and an elastic contact member 12 made of stainless steel for spring or the like. The base plate 11 is provided with folded portions 111 on both sides, and the elastic contact member 12 is provided between the folded portions 111 and 111. Elastic terminals 121, 122 are formed on the elastic contact member 12 toward one of the folded portions 111 formed on one side of the base member 11, and these elastic end portions 121, 122 and the folded portion are formed. A single-line (round wire) distribution wire tip 9 inserted from an insertion port 101 formed at one end of the housing 10 is inserted between the power supply 111 and the cable 111.

A device-side connection end 112 protrudes from one side of the base plate 11, and a device-side terminal 13 as shown in FIG. 4 is connected to the connection end 112. That is, the terminal 13 is in a composite twisted state, and is fastened to the peeled end 18 of the device-side wiring 15 on which the insulating coating 19 is applied by the first and second fastening portions 16 and 17. In front of the peeling end 18, elastic pressing portions 14, 14 for pressing both sides of the connection end 112 shown in FIG. 3 are formed by bending.

[0005]

[Problems to be solved by the invention]

 In the prior art as shown in FIGS. 3 and 4 and described above, it is necessary to mount the base plate 11 and the elastic contact member 12 on the insulating casing 10 and, on the equipment side, as shown in FIG. It is necessary to attach the terminals 13 formed by bending the resilient portions 14, 14 on both sides as described above, so that the number of components is large, the number of manufacturing and assembling steps is inevitably large, and the cost must be increased. .

Moreover, as described above, the components having a large number of components are not always properly connected and assembled between the components, and there is a high possibility of failure or damage at a contact portion or a fixed connection portion. The disadvantage that the connection or contact state is difficult to be stable cannot be avoided.

[0007]

[Means for Solving the Problems]

 The present invention has been studied to solve the problems of the prior art as described above, and integrated the device side terminals 13 and the base plate 11 of the housing 10 in the conventional one as described above. By adopting such a structure, the elastic contact member 12 was also successfully integrated, the required number of members was sufficiently reduced, the structure was simple, and an advantageous product was obtained in terms of production, assembly and functions. Successful, as follows:

(1) A detachable terminal fitting connected to a device-side conductor is attached to and detached from an insulator housing to be connected to a power supply-side conductor, and an elastic contact piece is attached to the detachable terminal fitting. A wiring connection terminal block, wherein a housing portion is formed, and a holding portion for the power-supply-side conductor and an elastic contact piece having a flexible contact portion are provided in the housing portion.

(2) A first winding fastening portion for fastening a peeling portion of the equipment-side conductor to the base end side of the mounting / dismounting terminal fitting which is attached to and detached from the insulator housing, and a covering portion of the equipment-side conductor is fastened. The terminal block for wiring connection according to the above (1), wherein a second winding-fastened portion is formed.

(3) A mounting / dismounting terminal fitting connected to the equipment-side conductor is attached to and detached from the insulator casing and connected to the power supply-side conductor, and the loading / unloading terminal fitting is made of phosphor bronze or the like. A wiring for forming a holding portion for the power supply-side conductor on the elastic terminal member, and an elastic contact portion for pressing the power-supply-side conductor against the holding portion integrally provided integrally; Terminal block for connection.

(4) A fixed guide portion which is set by connecting and disconnecting terminal fittings connected to the device-side conductor to the inner surface of the insulator housing, and a flexible guide contact portion opposed to the fixed guide portion. The wiring connection terminal block according to the above (3), wherein the wiring connection terminal block is formed so as to face.

(5) The flexible guide contact portion is located at the first contact portion facing the power supply-side conductor insertion / removal opening formed in the insulator housing, and is located between the first contact portion and the back portion of the insulator housing. (4) characterized in that the second contact portion is formed integrally with the fixed guide contact portion via a connecting portion extending from the fixed guide contact portion. Terminal block for wiring connection described in section.

[0013]

[Embodiment of the invention]

 The specific configuration of the device according to the present invention as described above will be described with reference to the accompanying drawings. As shown in FIG. 1, the device-side wiring 15 having the insulating coating 19 is connected to the insulating casing 10 as shown in FIG. The connection itself is the same as that of FIG. 3 described above, but in the present invention, the wiring 15 is not connected to the device side terminal 13 as shown in FIG. At the base end of the mounting / dismounting terminal fitting 1 to be inserted / removed, fastening portions 6, 6, 7, 7 are formed, and the leading end of the insulation coating 19 of the wiring 15 and the leading end of the peeling portion 8 are fastened and connected. A guide projection 21 is formed at the base end of the metal fitting 1 to regulate the setting relation in the housing 10 when inserted into the insulating housing 10.

Folding portions 4 and 4 a are formed on both sides of the mounting / dismounting terminal fitting 1 to define a charging position in the housing 10, and a locking portion 4 b is provided at a tip of one of the folding portions 4. The locking portion 4b is fitted into a locking hole 22 formed in the housing 10 in a state where the insertion / removal terminal fitting 1 is completely inserted as shown in the figure, and prevents the removal of the mounting / removing terminal fitting 1. As shown in FIG. 2, such fitting is released by inserting the pushing portion 23 into the locking hole 22, and thereby the mounting / dismounting terminal fitting 1 and the device-side wiring 15 are provided. From the housing 10.

Further, in the present invention, the elastic contact piece receiving portion 5 is provided between the folded portions 4 and 4a as shown in FIG. 1 and the elastic contact piece 2 is accommodated in the receiving portion 5. That is, the contact portion 20 formed by bending one end of the elastic contact piece 2 is located inside the insertion port 101 formed on the front end face side of the housing 10, and The contact portion 27, which guides the leading end portion 9 of the formed single wire to be inserted and is formed in a bent state on the other end side of the elastic contact piece 2, is pressed against the back of the other folded portion 4 a in an attached state, and is in contact with The leading end 9 of the conductive wire guided by the portion 20 is configured to be brought into squeezing contact with the inner surface of the folded portion 4a.

FIG. 2 shows a configuration in which the number of constituent members in FIG. 1 as described above is further reduced, and is connected and attached to the housing 10 and the device side wiring 15 with the guide portions 26 by the fastening portions 6 and 7. The state is the same as that of FIG. 1, but instead of the mounting / dismounting terminal fitting 1 and the elastic contact piece 2 shown in FIG. A folded portion 34 similar to FIG. 1 is formed on one side of the terminal member 3 and is connected to a folded portion 34a on the other side of the member 3 so that the folded portion 34a is extended from the side edge through the extending portion 24. The folded contact portion 25 facing the inside is formed. By forming a stop 104 at the tip of the folded portion 34a, the insertion depth of the wiring 9 and the like are also fixed.

That is, in contrast to the above-mentioned FIGS. 3 and 4, FIG. 1 shows that the device-side terminal 13 and the base member 11 are integrated, and FIG. In contrast, the mounting / dismounting terminal fitting 1 and the elastic contact piece 2 are integrated, and only a single contact portion attached to the housing 10 and the device side wiring 15 is sufficient. Is significantly simplified, and the possibility of poor contact and the like is poor.

According to the present invention as described above, the mounting / dismounting terminal fitting connected to the equipment-side conductor is attached to and detached from the insulator casing to be connected to the power supply-side conductor. An elastic contact piece receiving portion is formed in the terminal removal metal fitting, and a holding portion for the power supply side conductor and an elastic contact piece having a flexible contact portion are provided in the receiving portion, thereby forming this kind of terminal block. The number of conductive members can be reduced, and accurate mounting and dismounting and contact relationships can be formed with a simple configuration.

Further, according to the present invention, the first winding fastening portion for fastening the peeling portion of the device-side conductor to the base end side of the mounting / dismounting terminal fitting detachably mounted in the insulator housing, and the device-side conductor By forming the second winding portion for fastening the covering portion, the device-side wiring portion is stably and accurately connected to the terminal fitting, and the operation of mounting and dismounting the terminal fitting is easily and smoothly achieved.

Further, in the present invention, the mounting / dismounting terminal fitting connected to the equipment-side conductor is mounted / disconnected in the insulator casing and connected to the power supply side conductor, and the mounting / dismounting terminal fitting is made of phosphor bronze. This is because the elastic terminal member is formed of another elastic terminal member, the elastic terminal member has a holding portion for the power supply-side conductor, and the elastic contact portion for pressing the power supply-side conductor against the holding portion is integrally provided continuously. As a simple conduction switching mechanism, a smooth switching operation is realized by the minimum number of conductive members, and the characteristics of the present invention are fully exhibited.

Further, in the present invention, a fixed guide portion in which the mounting / dismounting terminal fitting connected to the equipment-side conductor is joined and set to the inner surface of the insulating casing, and a flexible guide opposed to the fixed guide portion. Since the contact portions are formed facing each other, stable assembling or operation in the insulator housing is effectively achieved.

According to the present invention, a flexible guide contact portion is provided on a power supply side conductor insertion / removal opening formed on an insulator housing, and a first contact portion is provided on the insulator housing. And a second contact portion located at the back of the fixed guide contact portion, and the second contact portion is formed integrally with the fixed guide contact portion via a connecting portion extending from the fixed guide contact portion. The intended contact relationship is effectively satisfied by minimizing the number of terminal members on the equipment side.

[0023]

[Effect of the invention]

 According to the present invention as described above, simple and stable connection or opening / closing operation can be smoothly achieved with a small number of conductive members, and power supply to various household electric appliances can be effectively achieved. This is a very effective device.

[Brief description of the drawings]

FIG. 1 is a vertical sectional side view showing one configuration relationship according to the present invention.

FIG. 2 shows another structural relationship according to the present invention.
It is a longitudinal side view similar to.

FIG. 3 is a longitudinal sectional view similar to that of FIGS. 1 and 2 showing a typical example according to the prior art.

FIG. 4 is a perspective view showing a device-side terminal used in combination with the one shown in FIG. 3;

[Explanation of symbols]

 REFERENCE SIGNS LIST 1 mounting / dismounting terminal fitting 2 elastic contact piece 3 elastic terminal member as mounting / dismounting terminal fitting 4 folded part 4 a folded part 4 b locking part 5 elastic contact piece housing part 6 winding part 7 winding part 8 peeling part 9 distribution line tip Unit 10 Insulator housing 11 Base member 12 Elastic contact member 13 Device side terminal 14 Resilient portion 15 Device side wiring 16 First tightening portion 17 Second tightening portion 18 Peeled end 19 Insulation coating 20 Contact portion 21 Guide protrusion DESCRIPTION OF SYMBOLS 22 Locking hole 23 Pushing part 24 Connecting part 25 Folding contact part 26 Guide part 27 Contact part 34 Folding part 34a Folding part 101 Insertion port 104 Stop part 111 Folding part 112 Connection end 121 Elastic end 122 Elastic end

Claims (5)

[Utility model registration claims] 1. A detachable terminal fitting connected to a device-side conductor in an insulator housing and connected to a power supply-side conductor, wherein an elastic contact piece is accommodated in the detachable terminal fitting. A terminal portion for wiring connection, wherein a holding portion for the power supply side conductor and an elastic contact piece having a flexible contact portion are provided in the housing portion. 2. A first winding fastening portion for fastening a peeling portion of an equipment-side conductor to a base end side of a mounting / detaching terminal fitting detachably mounted in an insulator housing, and a coating portion of the equipment-side conductor are fastened. 2. The wiring connection terminal block according to claim 1, wherein a second winding portion is formed. 3. A detachable terminal fitting connected to a device-side conductor in an insulator casing and connected to a power supply-side conductor, wherein the detachable terminal fitting is made of phosphor bronze or the like. A wiring connection, comprising an elastic terminal member, a holding portion for the power supply side conductor formed on the elastic terminal member, and an elastic contact portion for pressing the power supply side conductor against the holding portion. Terminal block. 4. A fixed guide portion, which is set by connecting and disconnecting terminal fittings connected to a device-side conductor to an inner surface of an insulator housing, and a flexible guide contact portion facing the fixed guide portion. The wiring connection terminal block according to claim 3, wherein the wiring connection terminal block is formed so as to face each other. 5. A first contact portion having a flexible guide contact portion facing a power-supply-side conductor insertion / removal opening formed in an insulator housing and located at a position deeper than the first contact portion in the insulator housing. 5. The fixed contact portion according to claim 4, wherein the second contact portion is formed integrally with the fixed guide contact portion via a connecting portion extending from the fixed guide contact portion. Terminal block for wiring connection.