JPH069064U - Waterproof protective cover - Google Patents

Abstract

(57) [Abstract] [Purpose] To provide a waterproof protective cover that can ensure electrical insulation, waterproofness, and mechanical protection in a wire connection portion and that can be easily mounted. [Structure] Case members 53a and 53b that are halved along the wire insertion direction are provided.
By connecting the left and right side edges with respect to the wire insertion direction of b with hinges 57, it is possible to open and close in a mating state and an open state, and when the case members 53a and 53b are brought into a mating state, a wire connection portion accommodation formed inside In the waterproof protective cover in which the chamber 83 is provided and the electric wire connecting portion accommodating chamber is filled with a flexible insulating sealant, the case members 53a, 5
Inside the 3b, there is provided a storage chamber which is partitioned from the electric wire connecting portion accommodating chamber 83 and allows the sealing agent 87 to overflow from the electric wire connecting portion accommodating chamber 83, and the case member 53a,
It is characterized in that a leakproof plate 93 is provided on the other left and right edges of the wire 53b with respect to the wire insertion direction, the leakproof plate 93 being housed in the other edge when the case members 53a and 53b are in a combined state.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a waterproof protective cover that protects a connecting portion of an electric wire from water.

[0002]

[Prior art]

 FIG. 7 shows an electric wire protection cover disclosed in Japanese Utility Model Publication No. 59-119576.

The electric wire protection cover 1 is composed of two half-cylindrical bodies 5 a and 5 b that are openably and closably connected by a hinge portion 3. Each of the half-cylindrical bodies 5 a and 5 b has an inner chamber wall 7 a and 7 b. Outer chamber walls 9a and 9b, which are outer walls of the protection cover 1, are formed on the outer periphery, and inner chambers 11a and 11b are formed inside the inner chamber walls 7a and 7b, and inner chamber walls 7a and 7b and outer chamber walls 9a and 9b. Gaps 13a and 13b are formed between them. Openings 15a and 15b are concentrically provided at both ends of the protective cover 1, and a pair of engaging portions 17a and 17b are formed at the side edges where the hinge portion 3 is not formed. The inner chambers 11a and 11b surrounded by the inner chamber walls 7a and 7b are filled with an insulating compound 19, and the upper surfaces of the inner chambers 11a and 11b are peeled off to prevent the insulating compound 19 from drying and hardening. The seat is covered.

According to such an electric wire protection cover 1, after the release sheet is peeled off, the connecting portion 23 of the electric wire 21 connected by crimping or the like is arranged in the inner chambers 11a and 11b, and the half cylinders 5a and 5b are connected. The connection portion 23 can be easily insulated by closing the door and engaging the engagement portions 17a and 17b.

Further, FIG. 8 shows an electric wire protection cover disclosed in Japanese Utility Model Laid-Open No. 59-109175.

The electric wire protection cover 25 is composed of two half members 29 a and 29 b that are openably and closably connected by a hinge portion 27. A base line 31 is inserted into one end of the two half members 29 a and 29 b in a combined state. A circular hole 35 is formed, and an elliptical hole 37 through which the base line 31 and the accessory line 33 are inserted is formed at the other end. Filling portions 41a and 41b surrounded by wall portions 39a and 39b are provided at both ends of the half members 29a and 29b located inside the holes 35 and 37, and the sealant 43 is provided in the filling portions 41a and 41b. Is filled. Receiving chambers 45a and 45b are formed between the filling portions 41a and 41b of the two half members 29a and 29b, and projections are formed on the substantially central portions of the wall portions 39a and 39b forming the filling portions 41a and 41b on the elliptical hole 37 side. Pieces 47a and 47b are provided so as to project.

According to such an electric wire protection cover 25, when the connecting portion 49 of the base wire 31 and the accessory wire 33 is housed in the housing chamber 45 and the two half members 29a and 29b are fitted, the filling portion on the elliptical hole 37 side is filled. At 41, the convex pieces 47a and 47b guide the sealant 43 between the electric wires 31 and 33, and at the filling portions 41 at both ends of the cover 25, the sealant 43 surrounds the outer circumferences of the base line 31 and the accessory line 33, so that both holes 35 and 37 are formed. It is possible to suppress water from entering and to protect the connecting portion 49 from water.

[0008]

[Problems to be solved by the device]

 However, the wire protection cover shown in Fig. 7 requires a release sheet to prevent hardening of the insulator compound, and when the half cylinder is fitted, the insulator compound is concentrated from the fitting side. It is difficult to sufficiently suppress this outflow in the gap because it tries to outflow. Furthermore, since the insulator compound does not harden immediately after the half-cylindrical body is fitted, there is a risk that the wires arranged may be displaced by the axial pulling force.

On the other hand, in the wire protection cover shown in FIG. 8, since the sealant is filled only in the filling portions at both ends, the amount of sealant that can flow out when the half members are fitted is larger than that in FIG. Can be kept small. However, if even a small amount of sealant flows out from the cover locking part side or both holes, a gap will be created around the base line and the accessory line on the cover locking part side after fitting, and water will leak from here to the connection part. There is a risk that the water will enter, and the waterproofing effect was likely to deteriorate compared to the case where the periphery of the connection part was directly surrounded by an insulating compound as shown in Fig. 7.

The present invention was made in order to solve such a conventional problem, and its purpose is to secure electric insulation, waterproofness, and mechanical protection in a wire connecting portion. The purpose of the present invention is to provide a waterproof protective cover that is easy to install and can be worn.

[0011]

[Means for Solving the Problems]

 In order to achieve the above-mentioned object, the present invention is provided with a case member that is halved along the wire insertion direction, and the left and right side edges of the case member with respect to the wire insertion direction are connected by a hinge to achieve a matching state. Also, it is possible to open and close in an open state, and a wire connection part accommodating chamber that is formed inside when the case members are put together is provided, and the wire connection part accommodating chamber is filled with a flexible insulating sealant. In the cover, inside the case member, there is provided a reservoir chamber that is partitioned from the electric wire connection portion accommodation chamber and allows the sealing agent to overflow from the electric wire connection portion accommodation chamber. The left and right edges with respect to the direction are provided with leak preventive plates that are housed in the other edge when the case members are brought into a fitted state.

[0012]

[Action]

 After accommodating the electric wire connecting portion in the electric wire connecting portion accommodating chamber of the opened case member, the case member is brought into a combined state. At this time, the sealant overflowing from the wire connection part storage chamber flows into the reservoir chamber, and the leak preventer prevents the sealant from flowing out from the side where the hinge is not provided. It is possible to suppress the outflow of water to the outside.

[0013]

【Example】

 An embodiment of the present invention will be described below with reference to the drawings.

FIG. 1 is a plan view of a waterproof protection cover according to the present invention, FIG. 2 is a side view of FIG. 1, FIG. 3 is a perspective view showing a usage state of the waterproof protection cover of FIG. 1, and FIG. It is a perspective view of the whole waterproof protection cover of FIG.

The waterproof protection cover 51 is a box-shaped case formed of an insulating resin, which is halved along the longitudinal direction, and is composed of two upper and lower case members 53a and 53b. Side walls 55a, 55b, which are the left and right edges of the upper and lower case members 53a, 53b in the longitudinal direction, are connected via a hinge 57, whereby the upper and lower case members 53a, 53b are brought into a mated state and an opened state. It can be opened and closed. A locking protrusion 61 is provided on the outer surface of the side wall 59b of the lower case member 53b on the other side (opening side) where the hinge 57 is not provided and an outer surface of the side wall 59a of the upper case member 53a is flexible. The locking frame 63 is provided, and the upper and lower case members 53a and 53b are brought into a combined state so that the locking frame 63 is locked to the locking projection 61 with one touch. A first electric wire insertion hole 69 and a second electric wire insertion hole 71 are formed at the joint between the longitudinal end walls 65a, 65b, 67a, 67b of the upper and lower case members 53a, 53b.

The upper and lower case members 53a, 53b are provided with first partition walls 73a, 73b and second partition walls 75a, 75b substantially orthogonal to the longitudinal direction, and at the joints of the first partition walls 73a, 73b. A first hole 77 is formed, and a second hole 79 is formed at the joint between the second partition walls 75a and 75b. Due to these first and second partition walls 73a, 73b, 75a, 75b, the insides of the upper and lower case members 53a, 53b are located inside the both end walls 65a, 65b, 67a, 67b of the first storage chambers 81a, 81b. And the second storage chambers 85a and 85b, and the electric wire connection portion storage chambers 83a and 83b located between the second storage chambers 85a and 85b. When the upper and lower case members 53a and 53b are brought into a combined state, the upper and lower first partition walls 73a and 73b and the upper and lower second partition walls 75a and 75b are respectively joined to each other so that the first storage chamber 81 and the electric wire Three chambers, the connection portion accommodation chamber 83 and the second storage chamber 85, are formed inside the electric wire protection cover 51. At this time, the first and second storage chambers 81 and 85 are partitioned with respect to the wire connection portion accommodation chamber 83.

The wire connection part accommodating chambers 83a and 83b located at the centers of the upper and lower case members 53a and 53b are filled with a jelly-like sealant 87 as a flexible insulating seal material. The material used as the jelly-like sealant 87 is, for example, low-viscosity butyl rubber, mineral oil-based grease, silicone-based grease, silicone gum, or the like. The electric wire connecting portion accommodating chamber 83 accommodates the electric wire connecting portion 49 branched from the base wire 31 (electric wire) to the accessory wire 33 (electric wire), and the base wire 31 includes the first electric wire insertion hole 69 and the first electric wire insertion hole 69. The base line 31 and the accessory line 33, which are branched and connected through the hole 77, are inserted through the second wire insertion hole 71 and the second hole 79. That is, the insertion direction of the electric wires is substantially the same as the longitudinal direction of the upper and lower case members 53a and 53b.

The upper and lower case members 53a and 53b are provided on the side of the second storage chambers 85a and 85b of the wire connection portion accommodation chambers 83a and 83b, which are triangular shaped upper and lower terminal deviation prevention pins formed so that their tips are tapered. 89a and 89b are respectively provided in a protruding manner, and a positioning plate 91 for restricting the arrangement position of the base line 31 is provided upright on the first reservoir chamber 81b side of the electric wire connection portion accommodation chamber 83b of the lower case member 53b. . After arranging the electric wire so that the terminal shift prevention pin 89b is positioned in the gap between the base wire 31 and the accessory wire 33 in the electric wire connecting portion accommodation chamber 83b of the lower case member 53b, the upper and lower case members 53a and 53b are brought into a combined state. Then, as shown in FIG. 6, the upper terminal shift prevention pin 89a is inserted between the base line 31 and the accessory line 33. That is, the upper and lower terminal shift prevention pins 89a and 89b open the space between the base line 31 and the accessory line 33, and at the same time, the base line 31 and the accessory line 33 are locked by the terminal shift prevention pins 89a and 89b.

The first and second storage chambers 81a, 81b, 85a, 85b formed at both ends of the upper and lower case members 53a, 53b have the wire connection portion 49 accommodated in the wire connection portion accommodation chambers 83a, 83b. When the upper and lower case members 53a, 53b are brought into a combined state, the upper and lower case members 53a, 53b are formed to have a size sufficient to allow the sealant 87 overflowing from the first and second partition walls 73a, 73b, 75a, 75b. ing.

Immediately inside the side wall 59a on the opening side of the wire connection part accommodation chamber 83a of the upper case member 53a, as shown in FIG. 5, the lower case member 53b is in a state of being combined with the upper and lower case members 53a and 53b. A leak prevention plate 93 is provided immediately inside the side wall 59b on the opening side of the electric wire connection portion accommodation chamber 83b.

In order to protect the connecting portion 49 of the electric wire in which the accessory wire 33 is branched from the base wire 31 by the waterproof protective cover 51 configured as described above, first open and close the upper and lower case members 53a and 53b, and The connecting portion 49 is housed in the wire connecting portion housing chamber 83b of the case member 53b. At this time, the base wire 31 is inserted into the first wire insertion hole 69, the base wire 31 and the accessory wire 33 are inserted into the second wire insertion hole 71, and the base wire 31 is located between the positioning plate 91 and the base wire 31. The base line 31, the accessory line 33 and the connecting portion 49 are arranged so that the lower terminal shift prevention pin 89b is located in the gap between the accessory lines 33. This operation can be performed easily because the positioning plate 91 and the lower terminal displacement prevention pin 89b can easily perform the positioning.

After disposing the base line 31, the accessory line 31, and the connecting portion 49, the locking frame 63 of the upper case member 53a is locked to the locking protrusion 61 of the lower case member 53b, and the upper and lower case members 53a, 53b. Are put together. This work can be performed by one-touch operation, and the waterproof protection cover 51 can be easily attached to the connection portion 49. Further, at this time, the base wire 31, the accessory wire 33, and the connecting portion 49 are surrounded by the jelly-like sealant 87, so that the connecting portion 49 of the electric wire branched from the base wire 31 to the accessory wire 33 is connected. Can be insulation protected.

Here, the sealant 87 is pushed away by the base line 31 or the like and tries to flow out from the wire connection portion accommodation chambers 83a and 83b, but a leakproof plate 93 is provided on the opening side of the upper and lower case members 53a and 53b. Therefore, the sealant 87 can be prevented from flowing out from the opening side. For this reason, the sealant 87 overflows from the first and second partition walls and flows into the first and second reservoir chambers 81 and 85, but the first and second reservoir chambers 81 and 85 are not covered by the sealant 87. Since the sealant 87 is formed to have a size that allows the inflow sufficiently, there is no risk that the sealant 87 will flow out from the first and second wire insertion holes 69, 71, and therefore the sealant 87 can be reliably flowed out. Can be prevented.

When the upper and lower case members 53a and 53b are brought into a combined state, the upper and lower terminal displacement prevention pins 89a and 89b open between the base line 31 and the accessory line 33 as shown in FIG. 87 sufficiently flows in, insulation protection of this portion can be surely performed, and the base wire 31 and the accessory wire 33 can be locked by the terminal shift prevention pins 89a and 89b, so that the electric wire is not pulled. Even if added, the connecting portion 49 is not likely to be displaced, and the waterproof protection of the connecting portion 49 can be more surely performed.

In this embodiment, the accumulating chambers 81a, 81b, 85a, 85b are provided at both ends of the wire connecting portion accommodating chambers 83a, 83b, but if the accumulating chambers are partitioned with respect to the electric wire connecting portion accommodating chambers. Well, for example, a reservoir chamber may be formed on the entire outer circumference of the wire connection portion accommodation chamber. When the reservoir chamber is formed on the entire outer circumference of the wire connection portion accommodating chamber in this manner, it is possible to more reliably prevent the sealant 87 from flowing out from the opening side.

The present invention is not limited to the above embodiment.

[0027]

[Effect of device]

 As described above, according to the present invention, after the electric wire connecting portion is accommodated in the electric wire connecting portion accommodation chamber of the opened case member, the case member is brought into the mating state, and the sealing operation is performed. It is possible to ensure electrical insulation, waterproofness, and mechanical protection in the electrical connection portion without the agent flowing out of the waterproof protection cover.

[Brief description of drawings]

FIG. 1 is a plan view of a waterproof protective cover according to the present invention.

FIG. 2 is a side view of FIG.

FIG. 3 is a perspective view showing a usage state of the waterproof protection cover of FIG.

FIG. 4 is an overall perspective view of the waterproof protective cover of FIG.

FIG. 5 is a diagram showing a state in which the waterproof protective cover of FIG. 1 is accommodated in a lower case member when the waterproof protective cover is in a combined state.

FIG. 6 is a schematic view showing states of upper and lower terminal displacement prevention pins, a base line, and an accessory line.

FIG. 7 is a perspective view of an entire conventional electric wire protection sheet.

FIG. 8A is a perspective view of another conventional electric wire protection cover in an open state, FIG. 8B is a plan view of the combined state of FIG. 8A,
(C) is an AA sectional view of (b).

[Explanation of symbols]

 31 Base line (electric wire) 33 Attached wire (electric wire) 49 Connection part 51 Waterproof protection cover 53a Case member 53b Case member 57 Hinge 65a Both end walls 65b Both end walls 67a Both end walls 67b Both end walls 69 First electric wire insertion hole 71 Second electric wire Insertion hole 81 First storage chamber 83 Electric wire connection portion storage chamber 85 Second storage chamber 87 Jelly-like sealant (sealant) 93 Leak preventive plate

Claims (1)

[Scope of utility model registration request] 1. A case member that is halved along an electric wire insertion direction is provided, and by connecting a left and right one side edge portion of the case member with respect to the electric wire insertion direction with a hinge, it is possible to open and close in a mating state and an open state, In a waterproof protective cover provided with an electric wire connection part accommodating chamber formed inside when the case members are put together, and the electric wire connection part accommodating chamber is filled with a flexible insulating sealant, the inside of the case member Is provided with a reservoir chamber that is partitioned with respect to the electric wire connection portion accommodation chamber and allows overflow of a sealing agent from the electric wire connection portion accommodation chamber. A waterproof protective cover, characterized in that a leak preventive plate is provided which is accommodated in the other edge portion when the case members are put together.