KR102556771B1 - Lever type connector - Google Patents

Abstract

The present invention relates to a lever-type connector. In the present invention, the lever 30 is rotatably installed in the housing 10 while the coupling rotation shaft 40 is fastened to the shaft installation portion 16 on both side walls 12 of the housing 10. On one side of the body 42 of the coupling rotary shaft 40, there is a head 44 having a larger outer diameter than the outer diameter of the body 42, and on the other side, a leg 46 installed by being inserted into the shaft installation part 16 there is a pair An elastic deformation space 48 is formed between the legs 46, and a first hanging jaw 50 is formed at the front end of the shaft installation part 16 in the shaft insertion space 18 inside the shaft hole ( 26) walks through. The body 42 has a circular cross section and becomes the center of rotation of the lever 30. In the present invention, even if the material forming the housing 10 and the lever 30 has little elasticity, the lever 30 can be easily assembled and disassembled without damage.

Description

Lever type connector {Lever type connector}

The present invention relates to a lever-type connector, and more particularly, to a lever-type connector that engages and disconnects from a mating connector using a lever rotatably mounted on a housing.

The lever-type connector uses a lever to which the principle of leverage is applied, so that mating and separation with a mating connector can be performed more smoothly. The lever-type connector is used when the number of terminals is large or when the number of terminals is small, it takes a lot of force to connect and separate the mating connector.

In general, a rotational shaft is integrally formed with the housing so as to protrude from the outer surface of the housing, and the rotational shaft is inserted into a shaft hole formed in a rotational plate of the lever so that the lever is rotatable in the housing.

However, when the environment in which the lever-type connector is used requires fire prevention, the housing is made of a flame retardant material. However, when a flame retardant material is used, the strength of the rotating shaft is relatively weak, so that it may be easily damaged by an external force.

In addition, the lever should also be widened considerably during the assembly process due to the rotating shaft protruding from both sides of the outer surface of the housing, and then be brought into close contact with the outer surface of both sides of the housing again. In this process, breakage or damage of the lever may occur. There is a problem.

In addition, in the conventional lever-type connector, since the position where the lever and the rotation shaft of the housing are coupled must be set to a specific position, a key code is placed. At the position of the key code, there is also a problem that the lever is detached from the rotation shaft during operation.

Republic of Korea Patent No. 10-00575189 Republic of Korea Patent No. 10-1385613

An object of the present invention is to solve the conventional problems as described above, and to assemble a lever to a housing in a lever-type connector using a separate coupling rotation shaft.

Another object of the present invention is to ensure smooth operation of the lever while using a coupling rotation shaft made separately from the housing.

Another object of the present invention is to ensure that the coupling rotational shaft is double-coupled to the housing.

According to a feature of the present invention for achieving the above object, the present invention provides a housing having a shaft installation portion in which housing shaft holes are opened on both side walls, and concentric with the housing shaft holes at a position corresponding to the housing shaft holes. A lever shaft hole is formed and an interlocking channel through which the interlocking protrusion of the mating connector is guided is formed, so that the lever acting as a lever when coupled with the mating connector, and the lever shaft hole and the housing shaft hole are simultaneously penetrated and fixed to the shaft installation part. The lever is installed in the housing and is a rotational center of the lever and may include a coupling rotation shaft made separately from the housing and the lever.

A shaft insertion space opened to one side of the housing is formed inside the shaft installation portion, and a portion of the coupling rotation shaft is inserted and positioned.

At least one flat surface is provided on an inner surface of the housing shaft hole to prevent rotation of the coupling rotation shaft.

The shaft insertion space of the shaft installation portion is partitioned by a partition plate, and an inner shaft hole having the same shape as the housing shaft hole is formed in the partition plate.

The coupling rotational shaft includes a body, a head formed at one end of the body and having a larger outer diameter than the body, and a pair formed at the other end of the body, with a first hook formed at the tip and an elastic deformation space formed therebetween. contains the leg of

A second hooking jaw is formed in the middle of the leg, and the second hooking jaw has a lower protruding height than the protruding height of the first hooking jaw.

A leg plane corresponding to a plane of an inner surface of the housing shaft hole and the inner shaft hole is formed on the leg.

A plane is formed on both sides of the head, and is formed parallel to the leg plane.

The lever shaft hole of the lever is formed through a cylindrical tube, and the body of the coupling rotation shaft is positioned.

The body of the coupling rotation shaft is located in the cylindrical tube, and a stop surface formed at one end of the body is supported on an outer surface of the shaft installation part.

In the lever-type connector according to the present invention, the following effects can be obtained.

First, in the present invention, since the coupling rotation shaft, which is the center of rotation of the lever, is made separately from the housing and coupled to the housing by penetrating the lever while the lever is placed in the housing, the assembly process of the lever becomes easier and the lever or There is an effect that damage to the coupling rotation shaft does not occur.

The body of the coupling rotation shaft of the present invention is formed with a stop surface whose distance from the rear surface of the head is equal to or greater than the thickness of the corresponding part of the lever. Therefore, since the rotation of the lever is made along the surface of the body of the coupling rotation shaft, there is an effect that the rotation of the lever becomes smooth when the dimensions and shape of the body are correct.

In addition, in the present invention, since the first hook and the second hook are formed on a pair of legs of the coupling rotation shaft at a predetermined interval, the coupling rotation shaft is double-coupled to the housing, so that the housing and the lever are more firmly coupled to the rotation shaft. It has the effect of fastening, and in addition, the first hanging jaw is larger than the second hanging jaw, so if you use a tool to separate the first hanging jaw from the first hanging surface of the shaft installation part, the coupling rotation shaft can be separated from the housing. It also has the effect of being able to easily separate the lever from the housing.

1 is a perspective view showing a preferred embodiment of a lever-type connector according to the present invention.
Figure 2 is an exploded perspective view showing the configuration of the embodiment shown in Figure 1;
Fig. 3 is a perspective view showing the configuration of a main part of a housing constituting an embodiment of the present invention;
Figure 4 is a perspective view showing the configuration of a coupling rotation shaft constituting an embodiment of the present invention.
5 is a cross-sectional perspective view showing a configuration in which a coupling rotation shaft couples a housing and a lever in an embodiment of the present invention.
Figure 6 is a cross-sectional view showing a configuration corresponding to Figure 5;

Hereinafter, some embodiments of the present invention will be described in detail through exemplary drawings. In adding reference numerals to components of each drawing, it should be noted that the same components have the same numerals as much as possible even if they are displayed on different drawings. In addition, in describing an embodiment of the present invention, if it is determined that a detailed description of a related known configuration or function hinders understanding of the embodiment of the present invention, the detailed description will be omitted.

Also, terms such as first, second, A, B, (a), and (b) may be used in describing components of an embodiment of the present invention. These terms are only used to distinguish the component from other components, and the nature, order, or order of the corresponding component is not limited by the term. When an element is described as being “connected,” “coupled to,” or “connected” to another element, that element may be directly connected or connected to the other element, but there may be another element between the elements. It should be understood that may be "connected", "coupled" or "connected".

As shown in the drawings, in the lever-type connector of this embodiment, the lever 30 is coupled to the housing 10 by the coupling rotation shaft 40, and the lever 30 is rotated around the coupling rotation shaft 40. .

The housing 10 forms the external appearance and skeleton of the connector, and an internal space open in one direction is formed inside. The exterior of the housing 10 is formed by the side wall 12 and the outer wall 14, and the side facing the outer wall 14 is open so that the mating connector can be inserted into the inner space. However, as another example of the housing 10, at least a portion of the outer wall 14 may be opened so that the wire may pass therethrough.

On both sides of the side wall 12, there are shaft installation parts 16. The coupling rotation shaft 40, which will be described in detail below, is coupled to the shaft installation portion 16 so that the lever 30 is rotatably installed in the housing 10. The configuration of the shaft installation portion 16 is well shown in FIGS. 3, 5 and 6.

The shaft installation portion 16 is located on both sides of the side wall 12 of the housing 10, and a shaft insertion space 18 is formed therein. The shaft insertion space 18 is open in a direction parallel to the surface of the side wall 12 . A tool may be inserted through the open portion.

In addition, the shaft insertion space 18 is also open to the surface of the side wall 12 . That is, the housing shaft hole 20 is open to the side wall 12 in an elliptical shape. As the housing shaft hole 20 has an elliptical shape, planes facing each other are formed on the inner surface thereof. For reference, there is at least one plane on the inner surface of the housing shaft hole 20 so that the leg plane 47 of the coupling rotation shaft 40 to be described below cooperates to prevent rotation of the coupling rotation shaft 40.

In the housing shaft hole 20, a leg 46 of a coupling rotation shaft 40 to be described below is positioned. As can be seen in FIGS. 5 and 6 surrounding the inlet edge of the housing shaft hole 20, there is an inlet slope 22. The inlet inclination 22 is for smooth insertion of the coupling shaft 40.

A partition plate 24 is formed in the shaft insertion space 18 . The partition plate 24 partitions the shaft insertion space 18 into two regions. An internal shaft hole 26 is formed in the partition plate 24 . The inner shaft hole 26 is formed through the partition plate 24 . The inner shaft hole 26 has the same shape as the housing shaft hole 20 and is formed at positions corresponding to each other.

Among the edges of the inner shaft hole 26, the inner side of the shaft insertion space 18 becomes the first hanging surface 28. On the first hanging surface 28, the first hanging jaw 50 of the coupling rotational shaft 40 to be described below is hung. The inner side of the housing shaft hole 20 becomes the second hanging surface 29. The second hanging surface 29 is hung with the second hanging jaw 54 of the coupling rotational shaft 40 to be described below.

The lever 30 is a part that the operator holds and manipulates for coupling and separation with the mating connector. The lever 30 is composed of a pair of rotation plates 32 and a connecting portion 34 connecting one end of the rotation plates 32 to each other. The rotation plates 32 are disposed side by side with each other and are positioned in contact with the side walls 12 on both sides of the housing 10 .

Interlocking channels 36 are formed in each of the rotation plates 32 . The interlocking channel 36 is a part where an interlocking protrusion (not shown) of the mating connector is positioned and guided. The interlocking channel 36 starts at one end of the rotating plate 32 and extends to a position adjacent to the lever shaft hole 38 to be described below.

The rotary plate 32 has a lever shaft hole 38. The lever shaft hole 38 serves as a rotational center of the lever 30, and the coupling rotation shaft 40 passes therethrough. The lever shaft hole 38 is formed to pass through the cylindrical tube 39 formed in the rotation plate 32 . Since the lever shaft hole 38 is formed in the cylindrical tube 39, the rotation of the lever 30 with respect to the coupling rotation shaft 40 can be performed more stably.

The coupling rotation shaft 40 serves as a rotation center of the lever 30 and couples the lever 30 to the housing 10 . The body 42 of the coupling rotational shaft 40 has a cylindrical shape. Of course, the body 42 may also have a cylindrical shape. The outer surface of the body 42 forms a circle and is positioned in the lever shaft hole 38 of the lever 30 so that the lever 30 rotates smoothly.

At one end of the body 42 there is a head 44. The head 44 has a larger diameter than the diameter of the body 42 . A flat surface 45 is formed on both sides of the head 44, and the flat surface 45 may be a gripping portion when a worker handles the coupling rotary shaft 40. In addition, the plane 45 serves to inform the direction in which the coupling rotational shaft 40 is inserted into the housing shaft hole 20 of the shaft installation portion 16 through the lever 30. That is, when the housing shaft hole 20 has an elliptical shape, the coupling rotation shaft 40 may be inserted into the housing shaft hole 20 so that the flat surface 45 is positioned parallel to the straight section.

A pair of legs 46 extend from the other end of the body 42 . The leg 46 extends in a direction opposite the head 44 . Leg planes 47 are formed on both sides of the leg 46 in the longitudinal direction. The leg plane 47 is made parallel to the plane 45 of the head 44. The leg plane 47 is located on a straight line between the housing shaft hole 20 and the inner shaft hole 26 to prevent the coupling rotation shaft 40 from rotating.

An elastic deformation space 48 is formed between the pair of legs 46 . The elastic deformation space 48 allows the leg 46 to be elastically deformed when passing through the housing shaft hole 20 and the inner shaft hole 26 . In this embodiment, the elastic deformation space 48 is extended to the body 42 .

At the front end of the leg 46, first hanging jaws 50 are formed protruding in opposite directions. The first hanging jaw 50 is finally hung on the first hanging surface 28 . A guide slope 52 guiding when passing through the housing shaft hole 20 and the inner shaft hole 26 is formed on the first hanging jaw 50 .

At about the middle of the leg 46, second hook jaws 54 protrude in opposite directions. The second hanging jaw 54 is finally hung on the second hanging surface 29 . A guide slope 56 is formed on the second hanging jaw 54 so as to be guided when passing through the housing shaft hole 20 . The protruding height of the second hook jaw 54 is relatively low compared to the first hook jaw 50 .

A stop surface 58 is formed at one end of the body 42 corresponding to a portion where the leg 46 is connected to the body 42. The stop surface 58 functions to regulate the degree to which the coupling rotational shaft 40 enters the shaft installation portion 16. That is, the body 42 is supported on the outer surface of the shaft installation portion 16 in which the housing shaft hole 20 is formed, so that a sufficient area for rotation of the lever 30 can be secured. Accordingly, the length of the body 42 is equal to or slightly longer than the thickness of the lever 30, more precisely, the length of the cylindrical tube 39.

For reference, in the present invention, the housing 10, the lever 30, and the coupling shaft 40 are made of an insulating material, and may be made of a flame retardant material. In the case of a product made by injection molding of a material made of a flame retardant material, the elastic deformation force is relatively low and may break if it is severely deformed. However, in the present invention, configurations requiring elastic deformation during assembly and use, such as not elastically deforming the lever 30 while assembling the housing 10, are minimized.

Hereinafter, the assembly and use of the lever-type connector according to the present invention having the above configuration will be described in detail.

First, in the present invention, coupling the lever 30 to the housing 10 using the coupling rotation shaft 40 will be described. Position the lever 30 relative to the housing 10 in the same direction as shown in FIG. 1 .

Next, in a state in which the lever shaft hole 38 of the lever 30 and the housing shaft hole 20 of the housing 10 coincide, the coupling rotation shaft 40 is connected to the lever shaft hole 38 and the housing shaft hole 20. Insert and pass through. The pair of legs 46 of the coupling rotation shaft 40 sequentially pass through the lever shaft hole 38, the housing shaft hole 20, and the inner shaft hole 26, and finally, the first hooking jaw 50 at the tip of the leg 46 It passes through the inner shaft hole 26 and is hung on the first hanging surface 28. In the course of the lever 30 passing through the lever shaft hole 38, the housing shaft hole 20, and the inner shaft hole 26, it is elastically deformed and then restored, and the first hanging jaw 50 repeats its restoration. At the same time as being hooked on the first hook surface 28, the second hook jaw 54 is hooked on the second hook surface 29, so that double fastening is achieved.

The leg 46 of the coupling rotation shaft 40 has a leg plane 47, and the leg plane 47 is seated on a plane corresponding to the housing shaft hole 20 and the inner shaft hole 26. Therefore, the coupling rotation shaft 40 does not rotate and remains coupled to the housing 10.

The body 42 of the coupling rotational shaft 40 has a circular cross section and becomes the center of rotation of the lever 30. When the lever 30 positioned substantially parallel to the outer wall 14 of the housing 10 is rotated 90 degrees and is erected in a direction orthogonal to the outer wall 14, the end of the interlocking channel 36 becomes the mating connector. It becomes a position facing the interlocking protrusion of . In this state, the mating connector and the housing 10 are initially coupled so that the interlocking protrusion is inserted into the interlocking channel 36 .

Next, when the lever 30 is rotated by 90 degrees so as to be parallel to the outer wall 14 as shown in FIG. 1, the interlocking protrusion moves to the innermost side of the interlocking channel 36 while the housing ( The mating connector is inserted into the inner space of 10) and coupled.

When the lever 30 is rotated 90 degrees in the opposite direction in a state in which the mating connector is inserted into the housing 10 and coupled thereto, the mating connector separates from the housing 10 .

In order to release the state in which the lever 30 is fastened to the housing 10 by the coupling rotational shaft 40, a tool is inserted into the shaft insertion space 18 of the shaft installation part 16, and the first hook The leg 46 may be elastically deformed by pressing the jaw 50. When the leg 46 is elastically deformed, the first hanging jaw 50 can be removed from the first hanging surface 28, and in this case, the coupling rotation shaft 40 is removed from the shaft installation part 16. By separating, the lever 30 can be separated from the housing 10 .

On the other hand, the lever 30 has a fastening structure so that each state is maintained in a state of equilibrium with the outer wall 14 and a state perpendicular to the housing 10 when installed in the housing 10, so that the lever 30 is attached to the housing so that it does not rotate arbitrarily.

In the above, even though all components constituting the embodiments of the present invention have been described as being combined or operated as one, the present invention is not necessarily limited to these embodiments. That is, within the scope of the object of the present invention, all of the components may be selectively combined with one or more to operate. In addition, terms such as "comprise", "comprise" or "having" described above mean that the corresponding component may be present unless otherwise stated, and thus exclude other components. It should be construed as being able to further include other components. All terms, including technical or scientific terms, have the same meaning as commonly understood by a person of ordinary skill in the art to which the present invention belongs, unless defined otherwise. Commonly used terms, such as terms defined in a dictionary, should be interpreted as being consistent with the contextual meaning of the related art, and unless explicitly defined in the present invention, they are not interpreted in an ideal or excessively formal meaning.

The above description is merely an example of the technical idea of the present invention, and various modifications and variations can be made to those skilled in the art without departing from the essential characteristics of the present invention. Therefore, the embodiments disclosed in the present invention are not intended to limit the technical idea of the present invention, but to explain, and the scope of the technical idea of the present invention is not limited by these embodiments. The protection scope of the present invention should be construed according to the claims below, and all technical ideas within the equivalent range should be construed as being included in the scope of the present invention.

For reference, in the illustrated embodiment, the first hook 50 and the second hook 54 are present on the leg 46, but it does not matter if only the first hook 50 is present. Of course, if the second hanger jaw 54 is together, a more robust coupling is possible due to double fastening.

10: housing 12: side wall
14: outer wall 16: shaft installation
18: shaft insertion space 20: housing shaft hole
22: entrance slope 24: partition plate
26: inner shaft hole 28: first hanging surface
29: second hanger 30: lever
32: rotary plate 34: connection
36: interlocking channel 38: lever shaft hole
39: cylindrical tube 40: coupling rotation shaft
42: body 44: head
45: plane 46: leg
47: leg plane 48: elastic deformation space
50: first hanging jaw 52: guide slope
54: second hanging jaw 56: guide slope
58: stop plane

Claims (10)

A housing having a shaft installation portion in which housing shaft holes are opened on both side walls;
A lever shaft hole formed concentric with the housing shaft hole at a position corresponding to the housing shaft hole and an interlocking channel through which an interlocking protrusion of the mating connector is guided is formed to act as a lever when coupled with the mating connector;
A lever-type connector that penetrates the lever shaft hole and the housing shaft hole at the same time and is fixedly installed in the shaft installation part so that the lever is installed in the housing and is a rotational center of the lever and includes a coupling rotation shaft made separately from the housing and lever. .
The lever-type connector according to claim 1, wherein a shaft insertion space is formed inside the shaft installation portion and is opened to one side of the housing, into which a part of the coupling rotation shaft is inserted.
The lever-type connector according to claim 2, wherein at least one flat surface is provided on an inner surface of the housing shaft hole to prevent rotation of the coupling rotation shaft.
The lever-type connector according to claim 3, wherein the shaft insertion space of the shaft installation portion is partitioned by a partition plate, and an internal shaft hole having the same shape as the housing shaft hole is formed in the partition plate.
The method of claim 4, wherein the coupling rotation shaft is formed on the body, a head formed at one end of the body and having a larger outer diameter than the body, and formed at the other end of the body and with a first hook formed at the front end, elastic between A lever-type connector including a pair of legs in which a deformation space is formed.
[6] The lever-type connector according to claim 5, wherein a second catching protrusion is formed at a middle portion of the leg, and the second catching protrusion has a protruding height lower than that of the first catching protrusion.
7. The lever-type connector according to claim 6, wherein a leg plane corresponding to an inner plane of the housing shaft hole and the inner shaft hole is formed on the leg.
[Claim 8] The lever-type connector according to claim 7, wherein flat surfaces are formed on both sides of the head, and are formed parallel to the leg flat surfaces.
The lever-type connector according to any one of claims 1 to 8, wherein the lever shaft hole of the lever is formed through a cylindrical tube and the body of the coupling rotation shaft is positioned therein.
10. The lever-type connector according to claim 9, wherein the body of the coupling rotation shaft is located in the cylindrical tube, and a stop surface formed at one end of the body is supported on an outer surface of the shaft installation part.

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