JPH0566883U - Electrical connection device - Google Patents

Abstract

(57) [Abstract] [Purpose] An object is to provide an engaging portion that engages with a through hole formed in a plug-in connection terminal, reliably prevent the plug-in connection terminal from coming off, and reduce the size. [Constitution] The housing A has a guide plate D1 and a guide groove D2.
Is formed, and the slide plate C1 is movably accommodated in the guide groove D2. Arms C2 and C3 having protrusions C4 and C5 are formed on the slide plate C1.
The connection terminals 1B and 2B are arranged above the terminals 2 and C3. Through holes are formed in the insertion connection terminals 11 and 12 of the power plug 10 inserted through the insertion holes A1 and A2. When the insertion connection terminals 11 and 12 are inserted, the protrusion C4 of the arms C2 and C3 is inserted into the through holes. , C5 fit together to prevent the power plug 10 from coming off. Also, the operating end F of the release rod F1
5 is pressed, the slide plates C1 and arms C2, C3
Moves in the H1 direction, the fitting between the plug-in connection terminals 11 and 12 and the projections C4 and C5 is released, and the power plug 10 can be pulled out.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to an electrical connection device, and more particularly, to an electrical connection device that is inserted into a connection terminal and is prevented from easily coming out of an insertion connection terminal connected to the connection terminal.

[0002]

[Prior Art]

 Generally, electrical wiring is connected using a socket, a connector, or the like, and the connection terminal on the insertion side and the connection terminal on the receiving side are brought into contact with each other. In this case, generally, the receiving-side connection terminal holds the insertion connection terminal by sandwiching the insertion connection terminal. However, if the connecting terminal on the receiving side only sandwiches the plug-in connecting terminal, the connection between the connecting terminal on the receiving side and the plug-in connecting terminal will be disconnected due to a slight impact, which is not only inconvenient to use but also for safety. Problems can arise. Therefore, conventionally, as described in JP-A-56-122199, a component mounting frame that can be locked to an assembly by a locking hook and a cover that fixes the component to the frame by shape coupling are provided. A holding device for an electric component has been proposed which prevents the component from coming off from the socket contact by including the device. That is, a cover for fixing the case to the frame by a shape coupling with the mounting frame is provided outside the case of the plug-in connection terminal to prevent the case of the plug-in connection terminal from coming off from the case of the receiving side connection terminal. ..

[0003]

[Problems to be solved by the device]

 However, in such a conventional electrical connection device, since the mounting frame and the cover are provided outside the case of the plug-in side connection terminal, the external shape of the electrical connection device becomes large and complicated. There was a problem. Therefore, the present invention has been made in order to solve the above-mentioned problems, and in an electrical connection device in which a normal plate-shaped plug-in connection terminal having a through hole formed at its tip is inserted, the plug-in connection is made. By engaging the engaging means provided in the housing with the through hole of the terminal to prevent the terminal from coming off and enabling the engaging means to be disengaged by the releasing means, the plug-in connection terminal is The aim is to prevent it from coming off easily from the electrical connection device and to make the external shape of the electrical connection device smaller and simpler.

[0004]

[Means for Solving the Problems]

 In the invention according to claim 1, at least one insertion hole into which a plate-shaped plug-in connection terminal having a through hole is inserted is formed in the housing, and the insertion hole is inserted into the housing. An electrical connecting device provided with at least one connecting terminal for connecting with a plug-in connecting terminal, wherein an engaging means for engaging with a through hole formed in the plug-in connecting terminal in the housing, and the engaging means An urging means for urging the insertion connecting terminal into a position engaging with the through hole of the insertion connecting terminal and an operating portion thereof are provided outside the housing, and the engaging means is moved by the operation of the operating portion to move the insertion connecting terminal of the insertion connecting terminal. And a release means for releasing the engagement with the through hole.

In this case, for example, as described in claim 2, the engaging means is a slide plate movably held in a guide groove formed in the housing, and the connecting plate is connected to the slide plate. An arm having a protrusion that protrudes toward the terminal and that engages with the through hole of the plug-in connection terminal, and the releasing means moves the slide plate of the engaging means along the guide groove. The protrusion of the arm may be separated from the through hole of the plug-in connection terminal.

Further, the arm may be formed on the slide plate by the number of the plug-in connection terminals, for example, as described in claim 3.

Further, as described in claim 4, two insertion holes may be formed and two connection terminals may be provided.

[0008]

[Action]

 According to the present invention, at least one insertion hole into which a plate-shaped plug-in connection terminal having a through hole is inserted is formed in the housing, and the plug-in connection is inserted into the housing from the insertion hole. At least one connection terminal for connecting to the terminal is provided. Engaging means for engaging with a through hole formed in the plug-in connection terminal is provided in the housing, and the engaging means is biased to a position for engaging with the through hole of the plug-in connection terminal. Energized by steps. The engaging means is moved by the releasing means to release the engagement of the plug-in connection terminal with the through hole, and the operating portion of the releasing means is provided outside the housing. Therefore, when the plug-in connection terminal is inserted through the insertion hole, the engagement means is biased by the biasing means to engage with the through-hole of the plug-in connection terminal. By engaging the engaging means with the through hole of the plug-in connection terminal, it is possible to prevent the plug-in connection terminal from coming off easily, and it is possible to ensure convenience and safety in use. Further, since the engaging means, the urging means and the releasing means are provided in the housing, the external shape of the electrical connecting device can be miniaturized and simplified. Then, by operating the operating portion of the releasing means, the engagement of the engaging means with the plug-in connecting terminal can be released, and the plug-in connecting terminal can be pulled out as necessary.

[0009]

【Example】

 1 to 4 are views showing an embodiment of the electrical connecting device of the present invention. 1 is an exploded front view of the electric connecting device, FIG. 2 is a partial cross-sectional top view of the electric connecting device, FIG. 3 is a partial cross-sectional perspective view of the electric connecting device, and FIG. 4 is a perspective view of a power supply plug connected to the electric connecting device. It is a figure. As shown in FIGS. 1 to 3, the electrical connection device according to the present embodiment is applied to a power socket 1, and includes a housing A, two pairs of connection terminals 1B and 2B, and an engaging portion (engaging means). C, a guide portion D, a biasing portion (biasing means) E, and a releasing portion (releasing means) F. The power plug 10 is inserted into the power socket 1.

Hereinafter, each component will be described. As shown in FIG. 2, the housing A of the power socket 1 is formed by stacking a pair of box-shaped housing pieces 1A and 2A whose one surface is open and fitting the open surfaces together. And each housing piece 1A, 2A is formed in a target shape. Each housing piece 1A, 2A is connected by fitting a connecting member (not shown) formed on each housing piece 1A, 2A, for example, a convex portion and a concave portion, and is a box-shaped housing A which is closed as a whole. To form. Each of the housing pieces 1A and 2A is formed by pressing hardened plastic, for example. The housing A to which the housing pieces 1A and 2A are connected is formed with two insertion holes A1 and A2. The insertion connection terminals 11 and 12 of the power plug 10 are inserted into the insertion holes A1 and A2. Is inserted. As shown in FIG. 4, through-holes 13 and 14 are formed at the tips of the plug-in connection terminals 11 and 12, respectively.

The guide portion D is composed of a guide plate D1 and a guide groove D2. The guide plate D1 is formed by projecting the side surfaces of the housing pieces 1A and 2A in the direction perpendicular to the plane of FIG. 2A, and is formed by integral molding. Further, as shown in FIG. 2, the inner plate D1 is set such that the protruding amount thereof is such that the protruding ends of the guide plates D1 formed on the respective housing pieces 1A and 2A have a predetermined distance. Further, as shown in FIG. 1, it is formed at a position having a predetermined distance from the inner bottom surface of each housing piece 1A, 2A. The space between the guide plate D1 and the inner bottom surface of each housing piece 1A, 2A is formed as a guide groove D2, and the guide groove D2 is formed with the longitudinal direction of FIG. 1 as the guide direction.

The engaging portion C is composed of a slide plate C1 and a pair of arms C2 and C3. The slide plate C1 and the arms C2 and C3 are integrally formed of hardened plastic. The slide plate C1 is formed in a plate shape, and both side ends thereof are inserted into the guide groove D2 so as to be movable in the guide direction of the guide groove D2. As shown in FIG. 3, the arms C2 and C3 have a predetermined length at the center of the slide plate C1 in the width direction and are formed to have a predetermined length perpendicular to the slide plate C1. The arm C3 is formed with the same space as the space between the insertion hole A1 and the insertion hole A2 formed in the housing A. Protrusions C4 and C5 projecting in the same direction are formed at the free ends of the arms C2 and C3, and the surfaces of the protrusions C4 and C5 on the side of the insertion holes A1 and A2 incline toward the slide plate C1. An inclined surface is formed. The surfaces of the protrusions C4 and C5 on the slide plate C1 side are formed parallel to the slide plate C1 or at an angle inclined from the tips of the protrusions C4 and C5 toward the tips of the arms C2 and C3. The arms C2 and C3 themselves have a predetermined elasticity.

A spring is used as the urging portion E, and the urging portion E is formed between the end of the slide plate C1 opposite to the side where the projections C4 and C5 are formed and the side surface of the housing A. It is reduced in between. An end portion of the biasing portion E on the slide plate C1 side is held by a holding portion (for example, a spring retainer) formed on a slide plate C1 (not shown), and an end portion of the biasing portion E on the housing A side is It is held by a not-shown holding portion (for example, a spring retainer) formed in the housing A. Therefore, the urging portion E urges the slide plate C1 in the direction in which the protrusions C4 and C5 are formed.

A receiving member C6 is formed at the tip of the slide plate C1 on the side opposite to the urging portion E, which projects in the vertical direction of the slide plate C1 and is bent toward the tip of the slide plate C1. An inclined surface C7 inclined toward the slide plate C1 side is formed on the surface above the tip of the receiving member C6.

The connection terminals 1B and 2B are composed of a pair of connection terminal plates 1B1 and 1B2 and a pair of connection terminal plates 2B1 and 2B2, respectively. The connection terminal plate 1B1 and the connection terminal plate 1B2 each have a close contact portion and a separation portion, and the close contact portion is located closer to the insertion hole A1 side than the separation portion. Further, the end portion on the insertion hole A1 side from the close contact portion has a shape opened with respect to the insertion hole A1. Further, the connection terminal plates 1B1 and 1B2 are provided with holding portions 21, 22, 23 and 24 formed at the opposite positions of the inner side surfaces of the respective housing pieces 1A and 2A so as to project in a direction perpendicular to the plane of FIG. The holding portions 21 and 22 and the connection terminal plates 1B1 and 1B2 are retained so that when the connection terminal 11 of the power plug 10 is inserted from the insertion hole A1 into the contact portion of the connection terminal plates 1B1 and 1B2, A gap is provided so that the plug-in connection terminal 11 can penetrate the connection terminals 1B1 and 1B2 in close contact therewith.

Similarly, the connection terminal plate 2B1 and the connection terminal plate 2B2 each have a close contact portion and a separation portion, and the close contact portion is located closer to the insertion hole A2 side than the separation portion. Further, the end portion on the insertion hole A2 side from the close contact portion has a shape opened with respect to the insertion hole A2. Further, the connection terminal plates 2B1, 2B2 are provided with holding portions 25, 26, 27, 28 formed at the opposite positions on the inner side surfaces of the respective housing pieces 1A, 2A so as to project in the direction perpendicular to the paper surface of FIG. The holding portions 25 and 26 and the connection terminal plates 2B1 and 2B2 are retained when the plug-in connection terminal 12 of the power plug 10 is inserted from the insertion hole A2 into the contact portion of the connection terminal plates 2B1 and 2B2. A gap is provided so that the plug-in connection terminal 12 can penetrate the connection terminals 2B1 and 2B2 in close contact with each other.

Each of these connection terminal boards 1B1, 1B2, 2B1, 2B2 is formed of a flexible conductor, and the plug-in connection terminals 11, 12 of the power plug 10 are inserted through the insertion holes A1, A2. 1B1 and the connection terminal board 1B2 and the connection terminal board 2B1 and the connection terminal board 2B2 when inserted into the contact area, the connection terminal board 1B1 and the connection terminal board 1B2 and the connection terminal board 2B1 and the connection terminal board 2B2 are inserted. The plug-in connection terminals 11 and 12 are pushed apart to sandwich the plug-in connection terminal 11 and the plug-in connection terminal 12. As a result, the plug-in connection terminals 11 and 12 of the power plug 10 and the connection terminals 1B and 2B of the power socket 1, specifically, the connection terminal boards 1B1 and 1B2 and the connection terminal boards 2B1 and 2B2 are connected. Further, each connection terminal board 1B1, 1B2, 2B1, 2B2 is connected to a power supply line (not shown). The power supply line is taken out of the housing A through a power supply line distribution portion (not shown) formed on the housing pieces 1A and 2A.

The releasing portion F is composed of a releasing rod F1, a spring holding portion F2, a spring F3, a spring retainer F4, and a receiving member C6 formed on the slide plate C1. The release rod F1 has a through hole A3 formed in the housing A (the through hole A3 is specifically a semicircular hole formed in both the housing piece 1A and the housing piece 2A). An operating end portion F5 is formed outside the housing A. A contact portion F6 is formed at the tip of the release rod F1 inside the housing A, and the contact portion F6 is in contact with the inclined surface C7 formed on the receiving member C6 of the slide plate C1. The spring retainer F4 is fixed at the position of the release rod F1 on the upper inner surface side of the housing A, and the spring F3 is housed in the housing formed by the spring retainer F4, the spring holder F2 and the housing A. .. Therefore, when the release rod F1 is pushed down in the direction of the housing A, the contact portion F6 of the release rod F1 pushes the receiving member C6 of the slide plate C1, and the receiving member C6 is formed on the inclined surface C7. When C1 is pushed by the release rod F1, it is pushed and moved in the direction indicated by the arrow H1 in FIG. When the pushing down of the release rod F1 is released, the release rod F1 is biased upward by the spring F3 to move in the direction in which the operating end F5 projects from the housing A, and the biasing portion E is further biased. The slide plate C1 moves in the direction indicated by the arrow H2 in FIG. 1 by the force.

Next, the operation will be described. To assemble the power socket 1, with the housing piece 1A and the housing piece 2A separated from each other, firstly, the spring retainer F4 is fixed to the release rod F1 with the spring F3 and one housing piece, for example, the housing piece. The spring F3 and the spring retainer F4 attached to this release rod F1 are attached to the spring holding portion F2.

Next, the holding portions 21, 22, 23, 24 and the holding portions 25, 26, 27, 28 with the connection terminal plates 1B1, 1B2 and the connection terminal plates 2B1, 2B2 in close contact with each other. To hold. At this time, a power cord is connected to the connection terminal boards 1B1 and 1B2 and the connection terminal boards 2B1 and 2B2 in advance.

Next, the slide plate C1 is set so as to be inserted into the guide groove D2, and the contact end portion F6 of the release rod F1 is brought into contact with the inclined surface C7 of the receiving member C6 of the slide plate C1. A biasing portion E is contracted between the housing piece A1 and the end of the slide plate C1 set in the guide groove D2 on the side where the receiving member C6 is formed and the opposite side.

When the release rod F1, the connection terminal plates 1B1, 1B2, 2B1, 2B2, the slide plate C1 and the urging portion E are thus set in the housing piece A1, the connection terminal plates 1B1, 1B2, 2B1, 2B2 are set. The power cord connected to the power supply cord is routed through a routing portion (not shown) to be taken out of the housing piece A1, and the other housing piece 2A is fitted with its inner surface facing the housing piece 1A. As described above, the housing piece 1A and the housing piece 2A are connected to each other by connecting a coupling member (not shown) formed on each of the housing pieces 1A and 2A, for example, by fitting a convex portion and a concave portion, and the whole is closed. A box-shaped housing A is formed.

In the state where each member is housed in the housing A in this way, as shown in FIG. 1, the slide plate C1 is urged by the urging portion E, and the inclined surface of the receiving member C6 is released. The rod F1 is set at a position where it comes into contact with the contact portion F6. At this time, the arm C2 formed on the slide plate C1 is located below the contact portion between the connection terminal plate 1B1 and the connection terminal plate 1B2, and the arm C3 is below the contact portion between the connection terminal plates 2B1 and 2B2. Is located in.

In this state, when the plug-in connection terminals 11 and 12 of the power plug 10 are inserted into the insertion holes A1 and A2 of the power socket 1, the plug-in connection terminals 11 and 12 come into contact with the close contact portions of the connection terminals 1B and 2B. .. When the plug-in connection terminals 11 and 12 are further pushed, the close contact portions of the connection terminals 1B and 2B are spread by the plug-in connection terminals 11 and 12, and the plug-in connection terminals 11 and 12 are connected to the connection terminals 1B and 2B. It can be plugged into the power socket 1. When the power plug 10 is further inserted, the plug-in connection terminals 11 and 12 come into contact with the protrusions C4 and C5 of the arms C2 and C3, and the tips of the plug-in connection terminals 11 and 12 are attached to the inclined surfaces of the protrusions C4 and C5. Pushed down along. When the plug-in connection terminals 11 and 12 are pushed in, the arms C2 and C3 bend by their own elasticity to allow the plug-in connection terminals 11 and 12 to enter, and until they come into contact with the housing A of the power socket 1. When inserted, the through-holes 13 and 14 of the plug-in connection terminals 11 and 12 of the power plug 10 reach the positions of the protrusions C4 and C5 of the arms C2 and C3. The arms C2 and C3 may be made of a material having no elasticity. In this case, the plug-in connection terminals 11 and 12 are inserted so that the plug-in connection terminals 11 and 12 are connected to the arms C2 and C3. When contacting the protrusions C4 and C5, the arms C2 and C3 move in the direction H1 in FIG. 1 against the urging force of the urging portion E together with the slide plate C1, and the plug-in connection terminals 11 and 12 can be inserted. Becomes

When the through holes 13 and 14 of the plug-in connection terminals 11 and 12 reach the positions of the protrusions C4 and C5 of the arms C2 and C3, they are urged in the direction of the arrow H2 by the urging portion E. C5 is fitted in the through holes 13 and 14 of the plug-in connection terminals 11 and 12, and the arms C2 and C3 hold the plug-in connection terminals 11 and 12 by the protrusions C4 and C5 thereof. Therefore, in the power plug 10 inserted in the power socket 1, the plug connection terminals 11 and 12 are formed in the power socket 1 in the through holes 13 and 14 formed in the plug connection terminals 11 and 12. It fits with the protrusions C4, C5 of the arms C2, C3 and is held in the power socket 1. As a result, even when the power plug 10 or the power cord connected to the power plug 10 is impacted in the direction of pulling out the power plug 10, the power plug 10 can be reliably prevented from coming off the power socket 1. It is possible to secure convenience and safety in use.

On the other hand, when pulling out the power plug 10 from the power socket 1, it is easier to push the operation terminal F5 of the release rod F1 toward the housing A, and then pull the power plug 10 while pushing the operation terminal F5. The power plug 10 can be pulled out from the power socket 1.

That is, when the operation terminal F5 is pushed, the contact end F6 of the release rod F1 moves downward along the inclined surface C7 of the receiving member C6 of the slide plate C1, and the contact end F6. By moving downward along the inclined surface C7, the slide plate C1 moves in the direction of the mark H1 in FIG. 1 against the urging force of the urging portion E 1. When the slide plate C1 moves in the direction of the arrow H1, the arms C2 and C3 formed on the slide plate C1 also move in the direction of the arrow H1 along with the movement of the slide plate C1, and the projections C of the arms C2 and C3. 4 and C5 are disengaged from the through holes 13 and 14 of the plug-in connection terminals 11 and 12. In this state, when the power plug 10 is pulled in the direction away from the housing A, the plug-in connection terminals 11 and 12 are pulled out through the close contact portions of the connection terminals 1B and 2B. Therefore, by pushing the operation terminal F5 of the release rod F1 toward the housing A and pulling the power plug 10, the power plug 10 can be easily pulled out from the power socket 1.

In addition, in the above-mentioned embodiment, the case where the invention is applied to the power socket is explained, but the invention is not limited to this. Further, although the case where there are two connection terminals has been described, the present invention is not limited to this, and for example, an electric connection device that connects one connection terminal and one insertion connection terminal, such as the connection of an electric cord of an automobile, For example, the present invention can be similarly applied to an electrical connecting device that connects a plurality of insertion pins and a plurality of connecting pins, such as a data line of a computer or a connector of RS-232C code.

[0029]

[Effect of the device]

 According to the present invention, the housing is provided with engaging means for engaging with the through hole formed in the plug-in connecting terminal, and when the plug-in connecting terminal is inserted through the insertion hole of the housing, the engaging means is Since it is biased by the biasing means and engages with the through hole of the plug-in connecting terminal, it is possible to prevent the plug-in connecting terminal from being easily detached from the electrical connecting device, which improves convenience and safety in use. Can be secured. Further, since the engaging means, the urging means and the releasing means are provided in the housing, the external shape of the electrical connecting device can be made compact and simple. Then, by operating the operating portion of the releasing means, the engagement of the engaging means with the plug-in connection terminal can be released, and the plug-in connection terminal can be pulled out as necessary.

[Brief description of drawings]

FIG. 1 is an exploded front view of an electrical connecting device of the present invention.

FIG. 2 is a partial cross-sectional top view of the electrical connecting device of the present invention.

FIG. 3 is a partial cross-sectional perspective view of the electrical connecting device of the present invention.

FIG. 4 is a perspective view of a plug connected to the electrical connecting device of the present invention.

[Explanation of symbols]

 1 Electric socket A Housing 1B, 2B Connection terminal C Engagement part D Guide part E Energizing part F Release part C1 Slide plate

Claims (4)

[Scope of utility model registration request] 1. A housing is provided with at least one insertion hole into which a plate-shaped plug-in connection terminal having a through hole at its tip end is inserted, and the plug-in connection terminal is inserted into the housing from the insertion hole. An electrical connecting device provided with at least one connecting terminal for connecting with, the engaging means engaging with a through hole formed in the plug-in connecting terminal in the housing, and the engaging means with the plug-in connecting terminal. Urging means for urging to a position that engages with the through hole of the plug, and its operating portion are provided outside the housing, and the engaging means is moved by the operation of the operating portion to move the inserting connection terminal into the through hole. An electric connecting device comprising: a releasing means for releasing the engagement. 2. The slide plate, wherein the engaging means is movably held in a guide groove formed in the housing, and the slide plate protruding from the slide plate toward the connecting terminal and penetrating the plug-in connecting terminal. An arm formed with a protrusion that engages with the hole, the releasing means moves the slide plate of the engaging means along the guide groove, and the protrusion of the arm causes the protrusion of the arm to pass through the through hole of the insertion connection terminal. The electrical connection device according to claim 1, wherein the electrical connection device is separated from the electrical connection device. 3. The electrical connecting device according to claim 2, wherein the arms are formed on the slide plate by the number of the plug-in connecting terminals. 4. The electrical connecting device according to claim 1, wherein two insertion holes are formed and two connection terminals are provided.