JPH07142104A - Grounding terminal device for electric apparatus - Google Patents

Abstract

PURPOSE:To separate a grounding terminal from a terminal board, and to prevent the connection error by providing a grounding connecting means for connecting a grounding connecting means and an apparatus main body. CONSTITUTION:A grounding cable is connected to a grounding cable connecting means 1, and the connecting means 1 is fitted to an apparatus main body 4 by a fitting means 2. Simultaneously, the apparatus main body 4 and the grounding cable connecting means 1 are connected by a grounding connecting means 3. In the case where a fitting screw and a magnet are used as a fitting means 2 and a grounding connecting means 3, the grounding cable connecting means 1 can be fitted to a desirable position of the apparatus main body 4 to improve the convenience of use by providing plural fitting holes in the apparatus main body 4.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a grounding terminal device for a lighting device and a terminal block mounted in the lighting device.

[0002]

2. Description of the Related Art In the first conventional example, as shown in FIG.
The instrument main body 100 and the ballast main body are provided with a threaded hole 101 and a ground terminal display 102, and a ground screw is connected using a fastening screw 103. However, the first conventional example has a drawback in that workability is poor because a process of attaching a crimp terminal such as a Y terminal or a round terminal to the tip of the ground wire is required.

On the other hand, in the second conventional example (for example, Japanese Utility Model Laid-Open No. 50-116089), the ground terminal 106 is provided on the terminal block 104 as shown in FIG. The main body (not shown) is grounded. In the third conventional example (for example, Japanese Examined Patent Publication No. 62-20668), the ground terminal 106 is provided on the terminal block 104 as shown in FIG. 31, but the terminal block 104 is attached and fixed to the instrument body 107 by attaching the screw 108. The grounding terminal 106 is connected to the instrument main body 107 by contacting the connection hole 110 with the projection of the grounding terminal 106.

The second conventional example and the third conventional example are designed so that screw fastening and quick connection can be performed only by peeling off the coating of the ground electric wire, and therefore, compared with the first conventional example. The workability has been improved.

[0005]

However, in the second conventional example and the third conventional example, since the function as a terminal block with a ground is fixed, for example, a device with a ground voltage of 150 V or less installed in a dry place. For equipment that does not require grounding, the grounding part is wasted. In addition, there are problems such as an increase in investment cost due to the production of two varieties, one with a ground and one without a ground.

The ground terminal does not have to be covered with an insulating material, but in the quick-connecting terminal type, it is covered with a resin insulating case in order to hold the ground terminal and guide the wire insertion. As the cost increases, the cost increases, including material costs. Further, since the insertion hole for connecting the power supply wire and the insertion hole for connecting the ground wire are formed on the same surface and the shapes of the holes are similar, the ground symbol may be difficult to see due to the molding marking or the like, and misconnection is likely to occur.

Further, when the ground terminal can be used as a single body, only a screw terminal or a terminal which is preliminarily connected is screwed. With such a screw tightening structure, the workability is poor and the screw is loosened for a long time. There is a possibility that the performance will deteriorate in use. Therefore,
An object of the present invention is to separate the ground terminal from the grounded terminal block, and the connection of the ground wire is not limited to screw tightening,
It is also an object of the present invention to provide a ground terminal device for an appliance that can reduce material costs and prevent misconnection.

[0008]

According to a first aspect of the present invention, there is provided a grounding terminal device for an appliance, comprising: a grounding wire connecting means to which a grounding wire is connected; an attaching means for attaching the earthing wire connecting means to the instrument body; and the attaching means. It is provided with the earth wire connecting means for connecting the earth wire connecting means and the equipment body by attaching the earth wire connecting means to the equipment body.

According to a second aspect of the present invention, there is provided an equipment ground terminal device according to the first aspect, wherein the ground electric wire is connected to the ground electric wire connecting means, and the earth electric wire connecting means is attached to the main body of the appliance by the attaching means. Are independent of each other. The earth terminal device for a device according to claim 3 is the device according to claim 1, wherein the attaching means is attached to a terminal block for connecting a power supply wire attached to the instrument body, and the earth connecting means attaches the terminal block to the instrument body. By mounting, the ground wire connecting means and the instrument body are grounded.

According to a fourth aspect of the present invention, there is provided the earth terminal device for an instrument according to the first, second or third aspect, wherein the earth wire connecting means has a quick connection structure. The instrument grounding terminal device according to claim 5 is claim 1, claim 2, and claim 3.
Alternatively, in claim 4, the ground wire connecting means, the mounting means, and the ground connecting means are made of a conductor.

An instrument grounding terminal device according to a sixth aspect is the device according to the first aspect, wherein the attaching means is temporarily fixed to the instrument body, and the earth wire is connected to the earth wire connecting means. The structure is such that the earth wire connecting means can be fixed to the instrument body by the pressing force of the earth wire. An instrument grounding terminal device according to claim 7 is the device according to claim 1, wherein the attaching means has an attaching spring that elastically clamps the instrument body slidably, and the instrument body is connected to the earth wire connecting means. The ground electric wire has an electric wire through hole that prevents the earth electric wire from penetrating from the instrument body.

According to an eighth aspect of the present invention, in the first aspect of the present invention, the connection of the ground electric wire to the ground electric wire connecting means and the attachment of the attaching means to the main body of the appliance are performed substantially at the same time. is there. According to a ninth aspect of the present invention, in the eighth aspect of the present invention, in the eighth aspect, the earth wire connecting means is a pressure contact terminal.

According to a tenth aspect of the invention, in the first aspect of the invention, the ground wire connecting means is a conductive elastic body having a holding portion for elastically holding the ground wire, and the mounting means is the above-mentioned. It is provided on an elastic body and elastically engages with the instrument body.

[0014]

According to the instrument earth terminal device of the present invention, the earth electric wire is connected to the earth electric wire connecting means, the earth electric wire connecting means is attached to the equipment main body by the attaching means, and at the same time, the earth main body is connected to the instrument main body by the earth connecting means. The ground wire connecting means is connected. In this case, as the ground wire connecting means, not only the screw terminal but also various kinds can be applied. Therefore, when used independently as a ground terminal device, the workability of connection can be improved as compared with the conventional screw terminal. it can. Further, the structure of the ground terminal device is sufficient only with the conductive parts necessary for electrical connection, and since it is not necessary to use an insulating material, the material cost can be reduced and the manufacturing cost can be reduced. In addition, it is easier to retrofit the ground terminal compared to the one in which the ground terminals are arranged side by side on the terminal block side by side, so it is not necessary to prepare multiple terminals for the terminal block made of an insulating material. Cost reduction, such as reduction, can be achieved. Furthermore, the appearance of the power wire insertion port and the ground wire insertion port are different in appearance, shape, position of the insertion port, etc., and it is easy to recognize the difference, so that the risk of misconnection is reduced.
Further, if mounting screws or magnets are used for the mounting means and the ground connection means, it can be mounted at any desired position by providing a plurality of mounting holes in the instrument body, and thus it is easy to use.

According to a second aspect of the present invention, in the first aspect of the present invention, in connection with the first aspect of the present invention, the ground wire connecting means is connected to the ground wire connecting means, and the attaching means connects the ground wire connecting means to the tool body. Since the mounting and the mounting are independent of each other, they have the same effect as in claim 1. According to another aspect of the present invention, there is provided the earth terminal device for a device as set forth in claim 1, wherein the attaching means is attached to a terminal block for connecting a power source wire, which is attached to the instrument body, and the earth connecting device connects the terminal block to the instrument. Since the earth wire connecting means and the instrument body are connected to the earth by being attached to the main body, in addition to the function of claim 1, there is no need to provide a ground terminal on the terminal block, which simplifies the configuration and enables the earth connection. Easy to do.

According to the instrument grounding terminal device of claim 4, in claim 1, claim 2 or claim 3, the ground wire connecting means has a quick-connecting structure.
In addition to the effect of claim 2 or claim 3, there is no looseness of the screw and the reliability of the connection is improved. According to the instrument grounding terminal device of claim 5, in claim 1, claim 2, claim 3 or claim 4, the ground wire connecting means,
Since the attachment means and the ground connection means are made of a conductor, the function of claim 1, claim 2, claim 3, or claim 4 can be achieved, and the size and cost can be reduced.

According to a sixth aspect of the present invention, in the first aspect of the present invention, the attaching means has a structure to be temporarily fixed to the instrument body, and the earth electric wire is connected to the earth electric wire connecting means. In addition to the function of claim 1, since the ground wire connecting means can be fixed to the instrument body by the pressing force of the ground wire,
The ground wire connecting means can be easily attached to the instrument body, and the ground wire connecting means can be securely fixed.

According to a seventh aspect of the present invention, in the first aspect of the present invention, the attachment means has an attachment spring that elastically clamps the instrument body so that the instrument body is connected to the earth wire. Since the ground wire connected to the means has a wire through hole that prevents the ground wire from coming off the appliance body, the structure is simple in addition to the function of claim 1, and the ground wire connecting means is connected to the tool body. It is easy to install and can be securely fixed.

According to the earth terminal device for an instrument of claim 8, in claim 1, the connection of the earth wire to the earth wire connection means and the attachment of the attachment means to the instrument body are performed substantially at the same time. Therefore, in addition to the function of claim 1, workability is improved. According to the instrument grounding terminal device of claim 9, since the grounding wire connecting means is a pressure contact terminal in claim 8, in addition to the function of claim 8, there is no loosening of the screw or the like, and the connection reliability is high. improves.

According to a tenth aspect of the present invention, in the first aspect, the earth wire connecting means is a conductive elastic body having a holding portion for elastically holding the earth wire, and the attaching means. Is provided on the elastic body and elastically engages with the instrument body. Therefore, in addition to the effect of the first aspect, the structure can be simplified and can be easily formed by the forming means.

[0021]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A first embodiment of the present invention will be described with reference to FIGS. That is, this equipment ground terminal device has the ground wire connection means 1, the attachment means 2, and the ground connection means 3. The ground wire connecting means 1 is for connecting a ground wire (not shown), and in the embodiment, the head 5
It has a conductive plate made of a copper alloy of a substantially T-shaped flat plate consisting of a leg portion 6 and a leg portion 6, and the leg portion 6 is bent vertically to form a standing piece portion 7, and the tip of the standing piece portion 7 is a head. The mounting piece portion 8 is formed by bending in parallel to the portion 5, and both sides of the head portion 5 are bent into the mounting piece portion 8 to form the side plate 9, and the standing piece portion 7, the mounting piece portion 8 and the side plate 9 are formed. The locking spring 10 is housed in the housing formed by. Further, an electric wire insertion hole 11 is formed in a corner portion between the standing piece portion 7 and the head portion 5. Further, a spring holding portion 12 is cut and raised at the center of the side plate 9, and the locking spring 10 is pressed and fixed to the mounting piece portion 8 at its tip. Therefore, when the ground wire is inserted through the wire insertion hole 11, the ground wire can be inserted between the head portion 5 and the locking spring 10 and can be locked by the locking spring 10. In this case, the side plate 9 prevents the locking spring 10 from moving in the lateral direction and prevents the ground wire from leaking laterally.

The attaching means 2 attaches the ground wire connecting means 1 to the instrument main body 4, and is located at the opposite positions of the extending piece 18 and the tip of the attaching piece portion 8 on the side opposite to the standing piece portion 7 of the head portion 5. Holes 14 and 15 through which the conductive mounting screw 13 is inserted are formed, and the mounting screw 13 is inserted into the holes 14 and 15 and screwed into a screw hole 16 formed in the counter sink 17 or the like of the instrument body 4 to connect the ground wire connecting means 1. It is fixed to the instrument body 4. In this case, the edge of the side plate 9 is applied to the instrument body 4 to prevent the mounting screw 13 from being overtightened.

As a result, the side plate 9 can be prevented from opening, the locking spring 10 can be prevented from coming off by the mounting screw 13, and the ground wire can be prevented from being excessively inserted in the depth direction when the wire is inserted. Further, the connection of the ground wire to the ground wire connection means 1 and the attachment to the instrument body 4 by the attachment means 2 can be performed independently of each other. Next, the earth connecting means 3 is attached to the instrument body 4 by the attaching means 2 to attach the earth wire connecting means 1 to the earth body connecting means 3.
The instrument main body 4 and the instrument main body 4 are connected to each other. In the embodiment, the conductive attachment screw 13 is also used for electrical connection.

According to this embodiment, the ground wire is connected to the ground wire connecting means 1, the ground wire connecting means 1 is attached to the instrument body 4 by the attaching means 2, and at the same time, the earth wire connecting means 3 connects the instrument body 4 to the instrument body 4. The ground wire connecting means 1 is connected. In this case, the ground wire connecting means 1 is not limited to the screw terminal, but various kinds of devices can be applied. Therefore, when used independently as a ground terminal device, the workability of connecting wires should be improved as compared with the conventional screw terminal. You can Further, the structure of the ground terminal device is sufficient only with the conductive parts necessary for electrical connection, and since it is not necessary to use an insulating material, the material cost can be reduced and the manufacturing cost can be reduced. In addition, it is easier to retrofit the ground terminal compared to the one in which the ground terminals are arranged side by side on the terminal block side by side, so it is not necessary to prepare multiple terminals for the terminal block made of an insulating material. Cost reduction, such as reduction, can be achieved. Furthermore, the appearance of the power wire insertion port and the ground wire insertion port are different in appearance, shape, position of the insertion port, etc., and it is easy to recognize the difference, so that the risk of misconnection is reduced.

Further, the mounting means 2 and the ground connecting means 3
If a mounting screw or a magnet is used for the device main body 4, it can be mounted at any position by providing a plurality of mounting holes in the device main body 4, which is easy to use. The second embodiment of the present invention is shown in FIG. That is, in this earth terminal device for appliances, the attaching means 1 is used in place of the attaching screw 13 of the first embodiment.
Is formed by elastic locking claws 19. A pair of these elastic locking claws 19 are projected on each side plate 9 with the spring holding portions 12 of both side plates 9 in between. On the other hand, a locking hole (not shown) for locking the elastic locking claw 19 is formed in the instrument body 4,
And it also serves as the ground connection. The same parts as those of the other first embodiment are designated by the same reference numerals.

According to this embodiment, as compared with the mounting screw 13, the ground wire connecting means 1 can be mounted by pushing it into the instrument body 4, so that the mounting workability is improved. Further, since the elastic locking claw 19 is formed integrally with the conductive plate, there is no concern that it will come off from the instrument body 4. A third embodiment of the present invention is shown in FIGS. That is, in this earth terminal device for appliances, a locking spring 10 having a mounting hole 20 at the center of the bottom, a resin-made insulating case 21 for housing the locking spring 10, and a cover 22 for closing the opening of the case 21. And a metal tapping screw (not shown)
It consists of. A hole 23, which is the same as or larger than the mounting hole 20, is formed in the case 21 at a position matching the mounting hole 20 of the locking spring 10, and a ground wire (not shown).
After the lock spring 10 is housed in the case 21, the opening of the case 21 is closed by the cover 22 and the hole 23 is formed by the tapping screw passed through the hole (not shown) of the instrument body 4. The case 21 is attached to the instrument body 4 by tapping through the mounting hole 20 while tapping through, and also serves as a ground connection.

In this case, the earth wire connecting means 1 is constituted by the case 21, the cover 22 and the locking spring 10, and the attaching means 2 is formed by the tapping screw and the attaching hole 20 and is attached to the hole of the instrument main body 4 to be grounded. The connecting means 3 is electrically connected to the instrument body 4 by coupling the tapping screw and the mounting hole 20. The fourth embodiment of the present invention is shown in FIG. That is, in this earth terminal device for appliances, a pair of locking springs 10 are arranged side by side in the third embodiment, and a central connecting piece 25 thereof is provided.
And the mounting hole 20 is formed in the center of the central connecting piece 25. In addition, the case 21 and the cover 22
Is formed into a size that can accommodate these locking springs 10,
A pair of ground wire guide holes 2 facing each locking spring 10
4 and a hole (not shown) which is aligned with the mounting hole 20 is formed.

According to this embodiment, in addition to the same operation as the third embodiment, a grounding terminal device with a feed is formed by using a metal tapping screw, but a power supply is formed by using an insulating resin tapping screw. Can be used properly as a feed terminal for electric wires, etc. The fifth embodiment of the present invention is shown in FIG. That is, in this earth terminal device for appliances, the permanent magnet 26 is bonded to the end surface of the side plate 9 or the outer surface of the mounting piece portion 8 in place of the mounting screw of the first embodiment, and the contact piece 27 is used as an example. The earth connecting means 3 is provided so as to project from the mounting piece portion 8, and a fitting hole 28 into which the earth connecting means 3 is fitted and connected is formed in the instrument body 4 made of a zinc iron plate. The contact piece 27 is fitted into the fitting hole 28, and the permanent magnet 26 is attracted to the instrument body 4 to mount the earth connecting means 1.

In this embodiment, the permanent magnet 26 can be easily attached to any position of the instrument body 4, and is easy to use. Note that, due to the relationship with the operating voltage, the contact piece 27 is not necessary if the earth function can be achieved even if the electric resistance is large. By using the iron-based permanent magnet 26 also as the earth connection means 3, a ballast case or the like can be obtained. It can be used by directly adhering it to the unpainted part of the appliance body 4 such as an iron plate containing.

A sixth embodiment of the present invention is shown in FIG. That is, in this equipment ground terminal device, the rising piece 30 is formed at one end of the conductive plate 29, and the upper end of the rising piece 30 is folded back toward the other end to form the locking spring 10 '.
The ground wire insertion hole 11 is formed in the root portion of the rising piece 30 facing 0 ', and the screwing hole 31 which also serves as the attachment means 2 and the ground connection means 3 is formed in the other end portion side of the conductive plate 29. There is.

Also in this embodiment, when the ground wire is inserted into the ground wire insertion hole 11, the ground wire is locked by the locking spring 10 ', and the mounting screw ( It can be attached by screwing (not shown) into the screw hole of the instrument body (not shown). A seventh embodiment of the present invention is shown in FIGS.
Shown in. That is, the ground terminal device for this appliance is the second
In the embodiment, the engaging hole 32 is formed on the upper surface of the ground wire connecting means 1, and the ground wire connecting means 1 is covered with a box-shaped cover 33 made of an insulating resin having an opening on the lower surface and one side surface.
The engaging projection 34 formed on the inner surface of the cover 33 is provided with the engaging hole 3
It is fitted to 2 and fixed to the ground wire connecting means 1. Three
Reference numeral 5 is a guide hole aligned with the ground wire insertion hole.

This embodiment is effective when it is necessary to cover the ground terminal device because of a place where the environment for use is bad due to dust or the like and there are other charging parts in the vicinity, and the connection is highly reliable. An eighth embodiment of the present invention is shown in FIGS. That is, in the earth terminal device for appliances, in the first embodiment, the mounting means 2 is mounted on the terminal block 36 for connecting the power supply wire, and the ground connection means 3 is grounded by mounting the terminal block 35 on the appliance body 4. The wire connecting means 1 and the instrument body 4 are grounded.

The terminal block 36 has a main body composed of a resin body 37 and a resin cover 38, has a screw hole 39 for attachment in the center of the attachment surface, and has a substantially cylindrical detent 40 on one of its both sides. Is provided, and the other half is provided with a substantially semi-cylindrical detent 41. Further, a recess 42 is formed adjacent to the rotation preventing projection 41 to allow a ground contact piece 43 described later to escape, and a ground terminal fitting hole 43 is formed adjacent to the recess 42.

The grounding terminal device has a grounding wire connecting means 1 having the same structure as that of the first embodiment except for the mounting means 2, and the grounding terminal device is inserted into the recess 42 while being in contact with the side portion of the terminal block 36. The contact piece 44 extends from one of the side plates, and the tip is bent in the mounting direction. Further, a fixed claw piece 45 that fits in the ground terminal fitting hole 43 is extended to an upright position adjacent to the ground contact piece 44, and a fixed claw 46 for retaining is formed by cutting and raising the upper end portion. . This ground terminal device is arranged on the terminal block 36, the ground contact piece 44 is fitted into the recess 42, and the fixing claw piece 45 is fitted into the fitting hole 43 so as to be prevented from being pulled out and fixed.

On the other hand, the instrument main body 4 has a mounting hole 47 which is aligned with the screw hole 39, and also has fitting holes 48 and 49 into which the rotation preventing projection 40 is fitted. One of the fitting holes 49 is grounded. It also serves as a hole. Mounting screw 5 in mounting hole 47
The terminal block 36 is screwed into the screw hole 39 through 0.
Is attached to the instrument body 4 and is simultaneously pressed and fixed by the earth contact piece 44 of the earth terminal device, and at the same time, the tip of the earth contact piece 44 is fitted into the fitting hole 49 in a conductive state.

In this embodiment, the main body of the terminal block 36 is shared, and it is possible to easily develop products with or without grounding. A ninth embodiment of the present invention is shown in FIG. In other words, in this ground terminal device for appliances, in the eighth embodiment, the gap between the resin cover 38 'and the resin body 37' is used as the fitting hole 43 into which the fixing claw piece 45 is fitted, and the resin body 37 'is used. The fitting hole 43 of is omitted.

A tenth embodiment of the present invention is shown in FIGS. That is, this appliance ground terminal device is attached to the appliance body 4 together with the terminal block 36. The terminal block 36 has a screw hole (not shown) on the mounting surface and a pair of detents 40 on both sides of the mounting hole. The terminal block 36 includes the screw hole and one of the detent protrusions 40 and forms an escape recess 42 'on the mounting surface. ing. In the grounding terminal device, a mounting / contacting piece 51 is extended outwardly from the side plate 9 of the grounding wire connecting means 1 having the same configuration as that of the first embodiment except for the mounting means 2, and the mounting / contacting piece 51 has a rotation preventing projection press-fitting hole. 55 is formed to have a slightly smaller diameter so that the rotation preventing projection 40 of the terminal block 36 can be fitted and fixed by press fitting, and a mounting hole 53 into which a mounting screw 52 formed by a conductive tapping screw is fitted. The diameter is set to be slightly smaller than that of the mounting screw 52 so that the mounting screw 52 contacts the mounting hole 53.

The instrument main body 4 has a fitting hole 54 into which the detent projection 40 is fitted, and an insertion hole (not shown) into which the mounting screw 52 is inserted. The grounding terminal device is placed on the instrument body 4 so that the press-fitting hole 55 and the mounting hole 53 of the mounting / contacting piece 51 of the grounding terminal device are aligned with the fitting hole 54 and the insertion hole, and the mounting / contacting piece 51 is mounted in the recess 42 '.
The terminal block 36 is placed on the instrument body 4 so that the two are fitted, and while fitting one of the rotation preventing protrusions 40 into the press-fitting hole 55, the rotation preventing protrusion 40 is fitted into the fitting hole 54 of the device body 4 and mounted. The screw 52 is passed through the mounting hole 53 and screwed into the screw hole of the terminal block 36. As a result, the ground terminal device is attached to the instrument body 4 at the same time when the terminal block 36 is attached, and the attachment / contact piece 5 is also attached.
1 is grounded to the instrument body 4.

An eleventh embodiment of the present invention is shown in FIGS. That is, in this equipment ground terminal device, in the configuration of the ground wire connecting means 1 of the first embodiment, the hook claws 56 are provided at the corners of the standing piece 7 and the mounting piece 8.
Is formed so as to project in a direction opposite to the extending direction of the mounting piece portion 8, and the extending piece 18 is bent so as to extend in parallel with the standing piece portion 7 to thereby lock the locking spring 10 Is closed, and the end of the extending piece 18 has a square-shaped locking claw 5
Forming 7.

On the other hand, a mounting hole 58 is formed in the device body so as to face the hooking claw 56 and the locking claw 57, and the mounting piece 8 is placed on the device body 4 while inserting the hooking claw 56 into the mounting hole 58. Then, the locking claws 57 are pushed into the mounting holes 58 to bring them into the temporarily fixed loose state. When the ground wire 59 is inserted from the ground wire insertion hole 11 in this state, the mounting piece 8 is pressed downward by the elastic deformation of the locking spring 10 and pressed against the instrument body 4, so that a reaction force is applied to the ground terminal device. , The locking claw 57 is pulled upward, and the locking claw 57 is pressed against the back surface of the device body 4 to be firmly fixed, and the earth terminal device is fixed to the device body 4 without rattling and at the same time. A ground connection is made by 57.

As described above, the mounting means 2 has a structure to be temporarily fixed to the instrument body 4, and the earth wire 59 is connected to the earth wire connecting means 1 by the pressing force of the earth wire 59 to connect the earth wire connecting means 1 to the earth wire connecting means 1. It has a structure that can be fixed to the instrument body 4. Also according to this embodiment, the instrument body 4
The ground wire connecting means 1 can be easily attached to the ground wire connecting means 1 and the ground wire connecting means 1 can be securely fixed.

A twelfth embodiment of the present invention is shown in FIGS. That is, in this earth terminal device for appliances, a conductive plate is bent into a substantially Ω shape, an electric wire insertion hole 60 for inserting the earth electric wire 59 is formed in the center of the upper end portion, and the gap H of the constricted portion at the lower end is made into the earth electric wire. The wire connection portion 61 is made smaller than the outer diameter of 59, and the projections formed by bending at both ends are used as the locking claw and ground connection portion 62. In addition, the wire connection part 6
A pressing spring 63 is formed on the upper side of 1 by cutting and raising.

In this case, the ground wire connecting means 1 is formed by the wire insertion hole 60 and the wire connecting portion 61, and the mounting means 2 is formed by the pressing spring 63, the locking claw and ground connecting portion 62 and the ground wire 59. The ground connecting means 3 is formed by a locking claw and ground connecting portion 62. Further, although the tool body 4 is larger than the maximum distance between the wire connecting portions 61 in a state where the ground wire 59 is not inserted, the pressing spring 63
Mounting holes 64 smaller than the maximum mutual spacing of The ground wire connecting means 1 is elastically deformed and pushed into the mounting hole 64. In this state, when the ground wire 59 is inserted through the wire insertion hole 60 and pushed between the wire connecting parts 61, the ground wire 59 contacts the wire connecting part 61 and at the same time the wire connecting part 61 expands to hold the locking claw and ground connecting part 62. Is pressed against the back surface of the instrument body 4 to be mechanically fixed to the instrument body 4, and at the same time, the locking claw and earth connection portion 62 comes into contact with the instrument body 4 for grounding.

A thirteenth embodiment of the present invention is shown in FIG. That is, in this equipment grounding terminal device, the attachment spring 65 in which the attachment means 2 elastically clamps the instrument body 4 slidably.
The instrument main body 4 has an electric wire through hole 67 for preventing a ground electric wire (not shown) connected to the earth electric wire connecting means 1 from penetrating and separating from the instrument main body 4. In the embodiment, the ground wire connecting means 1 is formed by cutting and raising the locking spring 66 on one side piece 69 of the substantially U-shaped conductive plate, and forming the wire through hole 68 on the other side piece 70. An extension piece 71 extending in the opposite direction to the one side piece 69 is provided at the end of 70, and mounting springs 65 facing the other side piece 70 are formed by cutting and raising on both sides of the extension piece 71.

On the other hand, a square hole 66 into which the extension piece 71 can be inserted is formed in the instrument body 4, and a recess 73 into which the support portion 72 between the attachment springs 65 of the extension piece 71 can be inserted is formed at the edge of the square hole. The electric wire through hole 67 is formed at a position opposite to the concave portion 73 and aligned with the electric wire through hole 68. Extension piece 71
Through the square hole 66 and place the other side piece 70 on the instrument body 4,
The mounting spring 65 is elastically locked to the back side of the instrument body 4 by sliding the earth terminal device into the concave portion 73 and the supporting portion 72 is inserted, whereby the earth wire connecting means 1 is fixed to the instrument body 4. . Next, the ground wire is passed through the lock spring 66 for quick connection, and the tip of the ground wire is passed through both the wire through holes 68 and 67. As a result, the movement of the ground terminal device is prevented, so that the ground terminal device is prevented from coming off, and since the ground wire is guided at two places, the ground wire can be inserted straight.

In this embodiment, the structure is simple, and the ground wire connecting means 1 can be easily attached to the instrument body 4 and can be securely fixed. It should be noted that the ground terminal device is turned upside down and the extending piece 71 is attached through the square hole 66 from the back side of the device body 4, and the ground wire is connected from the wire through hole 67 of the device body 4 to the wire of the ground wire connecting means 1. Through hole 68
It may be configured so that it is quickly connected through the.

FIG. 23 shows a fourteenth embodiment of the present invention. That is, in this equipment ground terminal device, pressure contact slits 75 are formed at opposite positions on both sides of a substantially inverted U-shaped conductive plate 74 forming the ground wire connecting means 1.
A mounting screw insertion hole 76 is formed at one end of the central piece, and a mounting screw hole 77 is formed in the instrument body 4. The ground terminal device is placed on the instrument body 4 with the ground wire 78 having an insulation coating along the instrument body 4, and the slit 7 is pressed against the ground wire 78.
5, the mounting screw 79 which also serves as the mounting means 2 and the ground connection means 3 is passed through the mounting screw insertion hole 76 and screwed into the mounting screw hole 77. Simultaneously with the tightening of the mounting screw 79, the press contact slit 75 of the ground electric wire connecting means 1 is pressed against the ground electric wire 78, the electric wire cover is broken by the press contact slit 75, the core wire is contacted, and the ground electric wire 78 is pressed and clamped. At the same time, the tightening of the mounting screw 79 is completed and the mounting state is established, and the mounting screw 79 is connected to the ground.

According to this embodiment, since the ground wire connecting means 1 has a pressure contact structure, it is not necessary to cut or peel off the coating of the ground wire 78 when feeding the ground wire 78, and the workability is improved. A fifteenth embodiment of the present invention is shown in the figure. That is, in this equipment grounding terminal device, the conductive plate 80 forming the grounding wire connecting means 1 is bent into a substantially inverted U shape, and the recessed portions 81 are formed in the central portions of both ends thereof to form the bottom edge portion of the recessed portion 81. An electric wire pressure contact portion 82 that bites into the insulating coating of the ground electric wire 78 is formed, and both ends are folded back outward to form a locking claw 83 that also serves as the attachment means 2 and the ground connection means 3. On the other hand, a fitting hole (not shown) into which the locking claw 83 fits is formed in the instrument body 4. When the ground wire 78 is laid along the fitting hole of the device body 4 and the locking claw 83 is pushed into the fitting hole, the wire pressure contact portion 82 bites into the wire coating and contacts the core wire, and at the same time, the core wire and the wire covering tool The body 4 side is pressed and the locking claw 83 is locked to the back surface of the instrument body 4 by the reaction force, is firmly fixed, and is electrically connected to the instrument body 4.

A sixteenth embodiment of the present invention is shown in FIGS. That is, this equipment ground terminal device has a recess 85 formed in the equipment body 4 and a conductive elastic body such as carbon or metal powder that integrally forms the earth wire connecting means 1, the attaching means 2 and the earth connecting means 3. Is formed into a trapezoidal shape that narrows in the insertion direction of the recess 85, and a wire insertion hole 86 that tapers in one direction perpendicular to the insertion direction is formed. The inner diameter of is equal to the outer diameter of the ground wire. The conductive rubber 84 is press-fitted into the recess 85 of the instrument body 4 from the narrow side of the trapezoid so that the inner diameter of the wire insertion hole 86 is reduced due to the dimensional relationship. Therefore, when the conductive rubber 84 is press-fitted into the recess 85 with the ground wire inserted in the wire insertion hole 86, the ground wire can be easily inserted, and the ground wire and the conductive rubber 84 are in close contact with each other. When the ground wire is elastically held by the frictional force of 84, the conductive rubber 84 and the instrument body 4 are in close contact with each other at that time, and the conductive rubber 84 is elastically held by the instrument body 4 by the frictional force, so that the ground wire is firmly fixed. Then, the ground wire and the instrument body 4 are electrically connected via the conductive rubber 84.

According to this embodiment, the ground wire connecting means 1 is the conductive rubber 84 having the wire insertion hole 86 for elastically holding the ground wire by frictional force, and the mounting means 2 is provided on the conductive rubber 84. The elastic body is elastically engaged with the instrument body 4 by frictional force, so that the structure can be simplified and the conductive rubber 8
4 can be easily molded by molding means. First of this invention
28 shows the seventh embodiment. That is, in this equipment ground terminal device, the press-fitting hole 89 that is a holding portion of the ground electric wire 88 is formed in the upper portion of the conductive rubber 87 that is a conductive elastic body, and the lower end portion of the conductive rubber 87 has a bifurcated engagement. The stopper 90 is formed. An attachment hole 91 is formed in the instrument body 4, and the bifurcated engagement portion 90 is press-fitted to elastically deform the engagement portion 90 so that the engagement hole 90 is retained in the attachment hole 91 so as to be engaged and fixed to the equipment body 4. . Further, after the ground wire 88 is press-fitted into the press-fitting hole 89, the tip 88a is bent at a right angle to prevent the wire from being pulled out. This embodiment has the same effect as the 16th embodiment.

[0051]

According to the earth terminal device for appliances of claim 1, the earth wire is connected to the earth wire connecting means, and the earth wire connecting means is attached to the equipment body by the attaching means, and at the same time, the equipment is connected by the earth connecting means. The main body and the ground wire connecting means are connected. As a result, various kinds of ground wire connecting means can be applied without being limited to the screw terminal. Therefore, when used independently as a ground terminal device, the workability of connection can be improved as compared with the conventional screw terminal. it can. Further, the structure of the ground terminal device is sufficient only with the conductive parts necessary for electrical connection, and since it is not necessary to use an insulating material, the material cost can be reduced and the manufacturing cost can be reduced. In addition, it is easier to retrofit the ground terminal compared to the one in which the ground terminals are arranged side by side on the terminal block side by side, so it is not necessary to prepare multiple terminals for the terminal block made of an insulating material. Cost reduction, such as reduction, can be achieved. Furthermore, the appearance of the power wire insertion port and the ground wire insertion port are different in appearance, shape, position of the insertion port, etc., and it is easy to recognize the difference, so that the risk of misconnection is reduced. Further, when mounting screws and magnets are used for the mounting means and the ground connection means, it is possible to mount the apparatus body at a desired position by providing a plurality of mounting holes, which is advantageous in that it is easy to use.

According to a second aspect of the present invention, in the first aspect of the present invention, in the first aspect, the earth wire connecting means is connected to the earth wire connecting means, and the attaching means connects the earth wire connecting means to the equipment body. Since the mounting and the mounting are independent from each other, the same effect as that of claim 1 is obtained. According to another aspect of the present invention, there is provided the earth terminal device for a device as set forth in claim 1, wherein the attaching means is attached to a terminal block for connecting a power source wire, which is attached to the instrument body, and the earth connecting device connects the terminal block to the instrument. Since the earth wire connecting means and the instrument body are connected to the earth by being attached to the main body, in addition to the effect of claim 1, there is no need to provide a ground terminal on the terminal block, which simplifies the configuration and enables the earth connection. Easy to do.

According to the instrument grounding terminal device of claim 4, in claim 1, claim 2 or claim 3, the ground wire connecting means has a quick connection structure.
In addition to the effect of claim 2 or claim 3, there is no looseness of the screw and the reliability of the connection is improved. According to the instrument grounding terminal device of claim 5, in claim 1, claim 2, claim 3 or claim 4, the ground wire connecting means,
Since the attachment means and the ground connection means are made of a conductor, the effect of claim 1, claim 2, claim 3, or claim 4 can be obtained, and the size and cost can be reduced.

According to a sixth aspect of the present invention, in the first aspect of the present invention, the attaching means has a structure for temporarily fixing to the instrument body, and the earth electric wire is connected to the earth electric wire connecting means. In addition to the effect of claim 1, since the ground wire connecting means can be fixed to the instrument body by the pressing force of the ground wire
The ground wire connecting means can be easily attached to the instrument body, and the ground wire connecting means can be securely fixed.

According to a seventh aspect of the present invention, in the first aspect of the present invention, the attachment means has an attachment spring that elastically clamps the instrument body so that the instrument body is connected to the earth wire. Since the ground wire connected to the means has a wire through hole for preventing the ground wire from coming off the tool body, the structure of the ground wire connecting means to the tool body is simple in addition to the effect of claim 1. It is easy to install and can be securely fixed.

According to the earth terminal device for an instrument of claim 8, in claim 1, the connection of the earth wire to the earth wire connecting means and the attachment of the attaching means to the instrument body are performed substantially at the same time. Therefore, in addition to the effect of claim 1, workability is improved. According to the instrument grounding terminal device of claim 9, since the grounding wire connecting means is a press contact terminal in claim 8, in addition to the effect of claim 8, there is no loosening of the screw, etc., and the connection reliability is high. improves.

According to a tenth aspect of the present invention, there is provided the earth terminal device for an appliance according to the first aspect, wherein the earth wire connecting means is a conductive elastic body having a holding portion for elastically holding the earth wire. Is provided on the elastic body and elastically engages with the instrument body. Therefore, in addition to the effect of the first aspect, the structure can be simplified and the molding can be easily performed.

[Brief description of drawings]

FIG. 1 is a perspective view of a first embodiment of the present invention.

FIG. 2 is a perspective view of the lock spring.

FIG. 3 is a side view showing a state of being attached to the instrument body.

FIG. 4 is a perspective view of a second embodiment.

FIG. 5 is a perspective view of a third embodiment.

FIG. 6 is a perspective view of the lock spring.

FIG. 7 is a perspective view of a fourth embodiment.

FIG. 8 is a side view with a partially enlarged view of a mounted state of a fifth embodiment.

FIG. 9 is a perspective view of a sixth embodiment.

FIG. 10 is a perspective view of a seventh embodiment.

FIG. 11 is a perspective view with the cover removed.

FIG. 12 is a perspective view of a terminal block of an eighth embodiment.

FIG. 13 is a perspective view of a ground terminal device.

FIG. 14 is a cross-sectional view showing a state of being attached to the instrument body.

FIG. 15 is a partial sectional view of a ninth embodiment.

FIG. 16 is a perspective view of a tenth embodiment.

FIG. 17 is a cross-sectional view showing a state of being attached to the instrument body.

FIG. 18 is a perspective view of an eleventh embodiment.

FIG. 19 is a side view of the mounting state.

FIG. 20 is a perspective view of a twelfth embodiment.

FIG. 21 is a cross-sectional view of the attached state.

FIG. 22 is an exploded perspective view of a thirteenth embodiment.

FIG. 23 is a perspective view of a fourteenth embodiment.

FIG. 24 is a sectional view of a use state of a fifteenth embodiment.

FIG. 25 is a perspective view thereof.

FIG. 26 is a perspective view of a 16th embodiment.

FIG. 27 is a cross-sectional view showing a state of being attached to the instrument body.

FIG. 28 is a perspective view of a seventeenth embodiment.

FIG. 29 is a perspective view of a first conventional example.

FIG. 30 is a side view of a second conventional example.

FIG. 31 is a perspective view of a third conventional example.

[Explanation of symbols]

 1 earth wire connecting means 2 mounting means 3 earth connecting means 4 instrument body

Claims (10)

[Claims] 1. A ground wire connecting means to which a ground wire is connected, a mounting means for mounting the ground wire connecting means to a tool body, and the grounding by mounting the ground wire connecting means to the tool body by this mounting means. An earth terminal device for an instrument, comprising an electric wire connecting means and an earth connecting means for connecting the instrument body. 2. The equipment ground according to claim 1, wherein the connection of the ground wire to the ground wire connecting means and the mounting of the ground wire connecting means to the tool body by the mounting means are independent of each other. Terminal device. 3. The attachment means is attached to a terminal block for connecting a power supply wire, which is attached to the instrument body, and the ground connection means is provided with the ground wire connection means and the instrument by attaching the terminal block to the instrument body. The earth terminal device for an appliance according to claim 1, which is earth-connected to the main body. 4. The earth terminal device for an appliance according to claim 1, 2 or 3, wherein the earth wire connecting means has a quick-connecting structure. 5. The earth terminal device for an instrument according to claim 1, claim 2, claim 3 or claim 4, wherein the earth wire connecting means, the attaching means and the earth connecting means are made of a conductor. 6. The mounting means is configured to be temporarily fixed to the appliance body, and the earth wire connecting means is pressed by the earth wire when the earth wire is connected to the earth wire connecting means. The earth terminal device for an instrument according to claim 1, which has a structure that can be fixed to the main body. 7. The mounting means has a mounting spring for elastically sandwiching the instrument body slidably, and the instrument body is penetrated by the earth wire connected to the earth wire connecting means. The earth terminal device for appliances according to claim 1, which has an electric wire through hole for preventing the detachment of the wire. 8. The earth terminal device for an instrument according to claim 1, wherein the connection of the earth electric wire to the earth electric wire connecting means and the attachment of the attaching means to the instrument body are substantially the same. 9. The earth terminal device for an instrument according to claim 8, wherein the earth wire connecting means is a pressure contact terminal. 10. The earth wire connecting means is a conductive elastic body having a holding portion for elastically holding the earth wire, and the attaching means is provided on the elastic body and elastically engages with the instrument body. The ground terminal device for an instrument according to claim 1.