JP2009187780A - Connector cap structure - Google Patents

Abstract

To provide a connector cap structure devised so that necessary functions such as a waterproof function can be reliably obtained with a simple configuration.
A connector connected to a terminal of a harness, a connector cap 23 which is detachably crowned and fixed to the connector 1 and has a substantially vessel shape, and a connector cap 23 interposed between the connector and the connector cap 23. And the packing is provided with a mounting insertion portion on the end face on the connector cap side, while the connector cap has a mounting through-hole into which the mounting insertion portion 25 is inserted. What has 53.
[Selection] Figure 1

Description

The present invention relates to, for example, a connector cap structure that is detachably crowned and fixed to a maintenance connector connected to a terminal of a harness of a two-wheeled vehicle, and a connector cap structure that includes parts attached thereto, in particular, simplification of the structure And a device devised so that necessary functions such as a waterproof function can be surely obtained.

The conventional connector cap structure is configured as shown in FIGS. 5 and 6, for example. As shown in FIGS. 5 and 6, there is a two-wheeled vehicle maintenance connector 101, and the lead wire 102 a of the terminal of the harness 102 is connected to the maintenance connector 101. That is, the maintenance connector 101 is provided with a plurality (6 in the case of FIGS. 5 and 6) of terminal portions 103, as shown in FIG. 5 (d). The lead wires 102a of the harness 102 are inserted into the plurality of terminal portions 103, respectively.

The maintenance connector 101 is covered and fixed with a connector cap 105 in a removable state. The connector cap 105 includes a cap body 107 and a protruding portion 109 that protrudes and is arranged from the cap body 107. The protruding portion 109 includes a plurality of lead wire insertion portions 111 (six in the case of FIGS. 5 and 6), and plugs 113 are respectively fitted to the tips of the lead wire insertion portions 111. . Note that the connector cap 105 is not a component that originally functions as a cap, but a component that functions as a corresponding male connector when the maintenance connector 101 is a female connector. Such a male connector is used as the connector cap 105.

A packing 115 is housed inside the cap body 107 of the connector cap 105. The packing 115 has a substantially ring shape, and engagement pieces 115a and 115a are provided on the left and right ends in the longitudinal direction, respectively. On the other hand, engaging caps 107a and 107a are formed on the cap body 107 side. The packing 115 is housed inside the cap body 107 with the engaging pieces 115a and 115a engaged with the engaging openings 107a and 107a. In the conventional case, the packing 115 is mounted in advance on the maintenance connector 101 side and is inserted into the connector cap 105 in that state.

In the above configuration, first, the lead wire 102 a of the terminal of the harness 102 of the motorcycle is inserted into the maintenance connector 101. Next, the maintenance connector 101 is inserted into the connector cap 105 with the packing 115 interposed therebetween. As a result, the maintenance connector 101 is closed. In such a state, it is always stored in an arbitrary position in the body of the motorcycle. In contrast, when maintenance is performed using the maintenance connector 101, the connector cap 105 is removed to expose the maintenance connector 101. Then, various inspection lead wires (not shown) are inserted therein to perform necessary inspections.

The conventional configuration has the following problems. First, since the connector cap 105 is not originally manufactured and provided as a cap, there is a problem in that the connector cap 105 is provided with an unnecessary component and is enlarged as a component due to this. Specifically, the protruding portion 109 is a component that is not originally necessary for functioning as a cap. The same applies to the plug 113. If the connector cap structure is thus increased in size, a large storage space is required even in the body of the motorcycle. Further, a packing 115 having a substantially ring shape is provided between the connector cap 105 and the maintenance connector 101, but the packing 115 may be biased by repeatedly attaching and detaching the maintenance connector 101 and the connector cap 105. In some cases, the original waterproof function may be impaired. More specifically, the packing 115 is merely housed in the cap body 107 with the pair of engaging pieces 115a and 115a engaged with the engaging openings 107a and 107a, and is particularly fixed. It is not configured like that. Therefore, by repeatedly attaching and detaching the maintenance connector 101 and the connector cap 105, the engagement between the engagement pieces 115a and 115a and the engagement openings 107a and 107a is loosened, and the packing 115 is biased.

In addition, although it is not the same as what was shown in FIG. 5, FIG. 6, there exists patent document 1 as an example which shows a waterproof cap.
JP 2001-110511 A

The present invention has been made based on such points, and an object thereof is to provide a connector cap structure that can simplify the structure and make it compact, and can reliably obtain necessary functions such as a waterproof function. There is.

In order to achieve the above object, a connector cap structure according to claim 1 of the present invention includes a connector connected to a terminal of a harness, a connector cap that is detachably crowned and fixed to the connector, and has a substantially instrument shape, A packing interposed between the connector and the connector cap, and an attachment plug is provided on the end face of the packing on the connector cap side, while the connector cap has the mounting A mounting through-hole into which the insertion part is inserted is formed. The connector cap structure according to claim 2 is characterized in that, in the connector cap structure according to claim 1, an annular protrusion for water stop of the end portion is provided on the outer peripheral side of the mounting insertion portion of the packing. It is what. Further, the connector cap structure according to claim 3 is the connector cap structure according to claim 1 or 2, wherein a plurality of side water-stopping annular protrusions are provided on the side portion of the packing. It is what. The connector cap structure according to claim 4 is the connector cap structure according to claim 3, wherein a plurality of side water stop annular projections are provided on the outer peripheral surface of the packing, The peripheral surface is also provided with a plurality of side water stop annular projections. A connector cap structure according to claim 5 is the connector cap structure according to claim 4, wherein the connector cap structure is located on the opening edge side of the packing among the plurality of side water-stop ring-shaped protrusions provided on the inner peripheral surface of the packing. The protruding height in the inner circumferential direction of the side water-stopping annular protrusion is set to be lower than the protruding height in the inner peripheral direction of the other side water-stopping annular protrusions. A connector cap structure according to claim 6 is the connector cap structure according to claim 1, wherein a plurality of dimension variation absorbing projections are provided on the end face of the packing on the connector cap side. Is. A connector cap structure according to claim 7 is the connector cap structure according to any one of claims 1 to 6, wherein the connector is a maintenance connector.

As described above, the connector cap structure according to claim 1 of the present invention includes a connector connected to the end of the harness, a connector cap that is detachably crowned and fixed to the connector, and has a substantially instrument shape, And a packing inserted between the connector cap and the connector cap, and a mounting insertion portion is provided on the end face of the packing on the connector cap side, while the connector cap has the mounting Since the mounting through-hole into which the plug-in part is inserted is formed, the structure of the connector cap has a very simplified configuration with a substantially vessel shape. And can be made compact. In addition, the packing is constructed so that it can be attached by inserting an engaging engagement convex portion provided on the end face on the connector cap side into the engaging through hole on the connector cap side. The position will also be easily defined. Further, the connector cap structure according to claim 2 is the connector cap structure according to claim 1, wherein an end water-stopping annular protrusion is provided on the outer peripheral side of the mounting engaging convex portion of the packing. Even if water intrudes from between the mounting engaging convex portion and the mounting through hole, further intrusion can be prevented by the end water stop protrusion. The connector cap structure according to claim 3 is the connector cap structure according to claim 1 or 2, wherein a plurality of side water-stopping annular protrusions are provided on the side portions of the packing. Intrusion of water can be prevented by a plurality of side protrusions. The connector cap structure according to claim 4 is the connector cap structure according to claim 3, wherein a plurality of side water stop annular projections are provided on the outer peripheral surface of the packing, Since a plurality of side water stop annular projections are also provided on the peripheral surface, it is possible to prevent water from entering. Further, the connector cap structure according to claim 5 is the connector cap structure according to claim 4, wherein the connector cap structure is located on the opening edge side of the packing among the plurality of side water-stop ring-shaped protrusions provided on the inner peripheral surface of the packing. The projecting height in the inner circumferential direction of the side water-stopping annular projection is set lower than the projecting height in the inner circumferential direction of the other side water-stopping annular projections, so that the necessary waterproof function is maintained. In addition, the insertability of the connector can be improved. The connector cap structure according to claim 6 is the connector cap structure according to claim 1, wherein a plurality of dimension variation absorbing projections are provided on the end face of the packing on the connector cap side. The dimensional variation absorbing protrusions are appropriately pressed and deformed, so that the dimensional variation of each component can be prevented. The connector cap structure according to claim 7 is the connector cap structure according to any one of claims 1 to 6, wherein the connector is a connector for maintenance, and is connected to, for example, a terminal of a harness of a motorcycle. It is suitable for a connector cap structure that covers a connector for maintenance. Needless to say, various other applications are conceivable.

Hereinafter, an embodiment of the present invention will be described with reference to FIGS. This embodiment shows an example in which the present invention is applied to processing of a connector for maintenance connected to a terminal of a harness of a motorcycle. FIG. 1 is an exploded perspective view showing a configuration of a connector cap structure according to the present embodiment. First, there is a maintenance connector 1. The maintenance connector 1 includes a large diameter portion 3 and a small diameter portion 5, and a tapered stepped portion 7 is formed between the large diameter portion 3 and the small diameter portion 5. A tapered portion 8 is also formed at the tip of the small diameter portion 5. Engaging convex portions 9 and 9 extending in the axial direction are provided on the left and right sides of the large diameter portion 3, respectively. The engaging projection 9 has a configuration in which a pair of engaging protrusions 9a and 9a are arranged with a gap 9b interposed therebetween. Further, on the upper side surface of the large-diameter portion 3 in FIG. 1, a lock convex portion 11 and an operation portion 13 are provided.

Further, a plurality (six in the case of this embodiment) of terminal portions 15 are provided on the right end face of the large diameter portion 3 in FIG. The lead wires 2a of the terminals of the harness 2 of the two-wheeled vehicle are respectively inserted into these terminal portions 15. Further, on the left end face of the small diameter portion 5 in FIG. 1, insertion ports 17 on the opposite side of the plurality of terminal portions 15 are formed. When performing maintenance, various lead wires (not shown) are inserted into these insertion ports.

The maintenance connector 1 having the above configuration is crowned and fixed in a state where the connector cap 23 is detachable with the packing 21 interposed therebetween. The packing 21 has the following configuration. First, as shown in FIGS. 2 and 3, the packing 21 has a substantially vessel shape, and a pair of mounting insertion portions 25, 25 project and are formed on the bottom surface. A plurality of dimension variation absorbing projections 27 are formed on the bottom surface.

As shown in FIG. 3 in an enlarged manner, the attachment plug-in portion 25 has a tapered portion 25a at the tip and a large-diameter portion 25b. Also, annular protrusions 29 and 29 for end water-stopping are formed on the outer peripheral side of the mounting insertion portions 25 and 25, respectively. The plurality of dimension variation absorbing projections 27 have a substantially hemispherical shape.

Further, when the structure of the upper portion of the packing 21 is viewed, as shown in FIG. 3, first, on the inner peripheral side, the inner peripheral side first-stage water-stop annular protrusion 31 and the inner peripheral side second-stage An annular protrusion 33 for water stop and an annular protrusion 35 for third-stage water stop on the inner peripheral side are sequentially projected and formed. On the other hand, when viewing the outer peripheral side, the outer peripheral side first-stage water-stopping annular protrusion 37, the outer peripheral side second-stage water-stopping annular protrusion 39, and the outer peripheral side third-stage water-stopping annular protrusion 41 from below. Are projected and formed sequentially. And the already described end water stop annular protrusions 29, 29, the inner circumferential first stage annular protrusion 31, the inner circumferential second stage water stopping annular protrusion 33, the inner circumferential third stage stop. The water annular protrusion 35, the outer peripheral side first stage annular protrusion 37, the outer peripheral side second stage annular protrusion 39, and the outer peripheral side third stage annular protrusion 41 are configured to exhibit a waterproof function. Further, on the left and right side surfaces of the packing 21, engaging convex portions 43 and 43 are respectively projected and formed.

Next, the configuration of the connector cap 23 will be described. The connector cap 23 has a substantially vessel shape, and engagement recesses 51, 51 are formed on the left and right sides. The engaging convex portions 9 and 9 of the maintenance connector 1 already engaged with the engaging concave portions 51 and 51 are engaged with the engaging convex portions 43 and 43 of the packing 21. Further, mounting through holes 53 and 53 are formed on the bottom surface of the connector cap 23. The mounting insertion portions 25 and 25 of the packing 21 already described are inserted into the mounting through holes 53 and 53.

A lock hole 55 is formed on one side of the connector cap 23, and the lock protrusion 11 on the maintenance connector 1 side already described engages with the lock hole 55, whereby the connector cap 23 Thus, the crowned and fixed state to the maintenance connector 1 is maintained.

The operation will be described based on the above configuration. First, the lead wire 2 a of the terminal of the harness 2 of the motorcycle is inserted into the maintenance connector 1. Next, the maintenance connector 1 is inserted into the connector cap 23 with the packing 21 interposed therebetween. As a result, the maintenance connector 1 is closed. In such a state, it is always stored in an arbitrary position in the body of the motorcycle. On the other hand, when performing maintenance using the maintenance connector 1, the connector cap 23 is removed to expose the maintenance connector 1. Then, various inspection lead wires (not shown) are inserted therein to perform necessary inspections.

Next, the waterproof function will be described. As shown in FIG. 3, first, water intrusion from between the large-diameter portion 3 of the maintenance connector 1 and the connector cap 23 is expected (portion indicated by symbol a in FIG. 3). In this regard, the inner peripheral side first-stage water-stopping annular protrusion 31, the inner peripheral side second-stage water-stopping annular protrusion 33, and the inner peripheral side third-stage water-stopping annular protrusion 35 function effectively. In doing so, water intrusion is effectively prevented. In particular, since the annular protrusion for water stop is provided in three stages, the water stop function is effectively exhibited.

In addition, intrusion of water from between the mounting insertion portion 25 and the mounting through hole 53 is expected (portion indicated by symbol b in FIG. 3). In this regard, first, the end water stop annular protrusions 29 and 29 function to prevent water from entering. In the case where the waterproof function by the end water stop annular projections 29, 29 is impaired, the outer circumferential side first stage annular projection 37, the outer circumferential side second stage annular projection 39, the outer circumferential side third stage The water stop function by the eye-annular protrusion 41 is exhibited. Furthermore, when the water stop function by the outer circumferential side first stage annular projection 37, the outer circumferential side second stage annular projection 39, and the outer circumferential side third stage annular projection 41 is impaired, the inner circumferential side first stage The annular protrusion 31, the inner peripheral side second-stage water stop annular protrusion 33, and the inner peripheral side third-stage water stop annular protrusion 35 function effectively to prevent water from entering. In this way, the water stop function is configured to be exerted several times against the intrusion of water from between the mounting engagement convex portion 25 and the mounting engagement through hole 53.

The water stop function will be further described. When the maintenance connector 1 is inserted into the connector cap 23 with the packing 21 in between, the inner peripheral side second-stage water-stopping annular projection 33 and the inner peripheral side third-stage water-stopping annular protrusion 35 are lower in FIG. As a result, the inner peripheral first-stage water-stop ring-shaped protrusion 31 falls inward. Accordingly, the inner circumferential side first-stage water-stopping annular protrusion 31, the inner circumferential side second-stage water-stopping annular protrusion 33, and the inner circumferential side third-stage water-stopping annular protrusion 35 are provided in the maintenance connector 1. The outer peripheral side first-stage annular protrusion 37, the outer peripheral side second-stage annular protrusion 39, and the outer peripheral side third-stage annular protrusion 41 are in close contact with the connector cap. The water function will be exhibited effectively.

In addition, the inner circumferential side first-stage water-stopping annular protrusion 31, the inner circumferential side second-stage water-stopping annular protrusion 33, and the inner circumferential side third-stage water-stopping annular protrusion 35, The projecting dimensions of the side first-stage water-stop annular protrusion 31 to the inner peripheral side are the inner circumference of the inner-periphery-side second-stage water-stop annular protrusion 33 and the inner peripheral side third-stage water-stop annular protrusion 35. It is set smaller than the projecting dimension to the side. This is to enhance the insertion property of the maintenance connector 1 into the packing 21, thereby facilitating assembly work.

In the case of the present embodiment, a configuration is adopted in which the packing 21 is fixed to the connector cap 23 by inserting the mounting insertion portions 25, 25 into the mounting through holes 53, 53, and the packing 21 is Since the shape follows the shape of the maintenance connector 1, the contact condition between the maintenance connector 1 and the packing 21 and the contact condition between the packing 21 and the connector cap 23 can be made uniform. As a result, the end water stop annular protrusions 29, 29, the inner peripheral side first stage water stop annular protrusion 31, the inner peripheral side second stage water stop annular protrusion 33, the inner periphery side third already described. The stage water stop annular protrusion 35, the outer periphery side first stage annular protrusion 37, the outer periphery side second stage annular protrusion 39, and the outer periphery side third stage annular protrusion 41 are in close contact with each other. As a result, the water stop function is effectively exhibited. Further, the occurrence of the packing 21 is effectively prevented.

Next, the operation of the dimension variation absorbing protrusion 27 will be described. In the case of the present embodiment, a dimensional difference as shown in FIG. 4 is set between the packing 21 and the connector cap 23. That is, 0.2 mm on one side is set in the vertical and horizontal directions in FIG. However, there is a tolerance in the dimensions of the packing 21 and the connector cap 23, and the connector cap 23 may be the minimum dimension when the packing 21 is the maximum dimension, or the connector cap 23 is the maximum dimension when the packing 21 is the minimum dimension. In some cases. The dimensional variation absorbing protrusion 27 functions to absorb such a dimensional variation. That is, when the maintenance connector 1 is assembled and pressed into the connector cap 23 with the packing 21 interposed therebetween, the plurality of dimensional variation absorbing protrusions 27 are appropriately pressed and deformed at various locations, whereby Variations will be absorbed.

As described above, according to the present embodiment, the following effects can be obtained. First, the structure of the connector cap 23 is greatly simplified and made compact. This is because an unnecessary portion is removed to make a substantially vessel shape. Also, the assembly work of the connector cap structure is facilitated. That is, when the maintenance connector 1 is inserted into the connector cap 23 with the packing 21 in between, the insertion insertion portions 25 and 25 of the packing 21 are inserted into the mounting through holes 53 and 53 of the connector cap 23, thereby This is because the position of is easily determined and fixed. Further, the engagement convex portions 9 and 9 of the maintenance connector 1 and the engagement convex portions 43 and 43 of the packing 21 are engaged with the engagement concave portions 51 and 51 of the connector cap 23, whereby the mutual positions are easily determined. Because it is done. Moreover, the waterproof function by the packing 21 is also extremely high. Specifically, first, with respect to intrusion of water from between the large-diameter portion 3 of the connector 1 for maintenance and the connector cap 23 (portion indicated by symbol “a” in FIG. 3), the first step on the inner peripheral side. The water stop annular protrusion 31, the inner peripheral side second-stage water stop annular protrusion 33, and the inner periphery side third-stage water stop annular protrusion 35 effectively function,
Water intrusion is effectively prevented. In particular, since the annular protrusion for water stop is provided in three stages, the water stop function is effectively exhibited. Further, for water intrusion from between the mounting insertion portion 25 and the mounting through-hole 53 (portion indicated by symbol b in FIG. 3), first, the end water-stopping annular protrusions 29, 29 are provided. Function to prevent water ingress. In the case where the waterproof function by the end water stop annular projections 29, 29 is impaired, the outer circumferential side first stage annular projection 37, the outer circumferential side second stage annular projection 39, the outer circumferential side third stage The water stop function by the eye-annular protrusion 41 is exhibited. Furthermore, when the water stop function by the outer circumferential side first stage annular projection 37, the outer circumferential side second stage annular projection 39, and the outer circumferential side third stage annular projection 41 is impaired, the inner circumferential side first stage The annular protrusion 31, the inner peripheral side second-stage water stop annular protrusion 33, and the inner peripheral side third-stage water stop annular protrusion 35 function effectively to prevent water from entering. As described above, the water stop function is repeatedly exerted against the intrusion of water from between the mounting engagement convex portion 25 and the mounting engagement through hole 53. Also, a plurality of dimension variation absorbing projections 27 are projected and formed on the bottom surface of the packing 21, and the packing 21 and connector cap are appropriately pressed and deformed. Therefore, it is possible to effectively absorb the dimensional variation between the components such as the dimensional variation between the two components. Further, the projecting dimension of the inner peripheral side first-stage water stop annular protrusion 31 to the inner peripheral side is set to the inner peripheral side second stage water stop annular ring 33 and the inner peripheral side third stage water stop annular protrusion 35. Therefore, the insertion property of the maintenance connector 1 into the packing 21 can be improved, thereby facilitating the assembling work.

The present invention is not limited to the one embodiment. First, in the case of the one embodiment, the present invention is applied to the processing of the connector for maintenance connected to the terminal of the harness of the two-wheeled vehicle. However, the present invention can be applied to various connectors that require other covers. About the structure of each water stop function part of packing, it is not limited to what was illustrated, The thing of various structures is assumed. Specifically, there are no particular limitations on the shape, number, position, and the like of the mounting plug. Further, the position, number, shape, and the like of the water stop ring-shaped protrusion are not particularly limited. In addition, the illustrated configuration is merely an example and is not limited thereto.

The present invention relates to, for example, a connector cap structure that is removably crowned and fixed to a maintenance connector connected to a terminal of a harness of a vehicle, and a connector cap structure including parts attached thereto, in particular, simplification of the structure. For example, it is suitable for processing of a connector for maintenance connected to a terminal of a harness of a motorcycle.

It is a figure which shows one embodiment of this invention, and is an exploded perspective view which shows the structure of a connector structure. FIG. 2A is a front view showing the structure of the connector structure, FIG. 2B is a plan view of the connector structure, and FIG. 2C is a side view of the connector structure. FIG. 2D is a side view of the connector structure. It is a figure which shows one embodiment of this invention, and is a longitudinal cross-sectional view which shows the structure of a connector structure. It is a figure which shows one embodiment of this invention, Fig.4 (a) is a side view of packing, FIG.4 (b) is a front view of a cap. It is a figure which shows a prior art example, and is an exploded perspective view which shows the structure of a connector structure. FIG. 6A is a front view showing the structure of the connector structure, FIG. 6B is a plan view of the connector structure, FIG. 6C is a side view of the connector structure, and FIG. ) Is a side view of the connector structure.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Maintenance connector 2 Harness 2a Lead wire 9 Engaging convex part 21 Packing 23 Connector cap 25 Mounting insertion part 27 Dimensional dispersion absorbing protrusion 29 End part water stop annular protrusion 31 Inner circumferential side first stage water stop annular protrusion 33 Inner peripheral side second-stage water-stop annular protrusion 35 Inner peripheral side third-stage water-stop annular protrusion 37 Outer peripheral side first-stage water-stop annular protrusion 39 Outer peripheral side second-stage water-stop annular protrusion 41 An outer peripheral side third stage water stop annular protrusion 43 Engaging convex part 51 Engaging concave part

Claims (7)

A connector connected to a terminal of the harness, a connector cap that is detachably crowned and fixed to the connector and has a substantially instrument shape, and a packing that is interposed between the connector and the connector cap. A mounting insertion portion is provided on the end face of the packing on the connector cap side, and on the other hand, the connector cap is formed with a mounting through hole into which the mounting insertion portion is inserted. Characteristic connector cap structure. 2. The connector cap structure according to claim 1, wherein an end water-stop ring-shaped protrusion is provided on an outer peripheral side of the mounting insertion portion of the packing. 3. The connector cap structure according to claim 1, wherein a plurality of side water-stopping annular protrusions are provided on a side portion of the packing. 4. The connector cap structure according to claim 3, wherein a plurality of side water stop annular projections are provided on the outer peripheral surface of the packing, and a plurality of side water stop is also provided on the inner peripheral surface of the packing. A connector cap structure characterized in that an annular projection is provided. 5. The connector cap structure according to claim 4, wherein among the plurality of side water-stopping annular protrusions provided on the inner peripheral surface of the packing, the inner periphery of the side water-stopping annular protrusion positioned on the opening edge side of the packing The connector cap structure characterized in that the protruding height in the direction is set lower than the protruding height in the inner circumferential direction of the other annular protrusions for water stoppage on the side portion. 2. The connector cap structure according to claim 1, wherein a plurality of dimension variation absorbing projections are provided on an end face of the packing on the connector cap side. 3. The connector cap structure according to claim 1, wherein the connector is a maintenance connector.

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