TW202123553A - Electric connector - Google Patents

Abstract

The invention provides an electric connector which can save space and prevent moisture from invading into a frame body. A socket connector (20) is provided with a housing (21) mounted in a mounting hole of a panel of a frame body, and the housing is provided with a cover part (22) inserted into the mounting hole of the panel and a flange part (23) extending from the outer peripheral surface of the cover part to the outside in the radial direction. A plurality of fitting openings (24A-24D) into which the plurality of cable connectors are fitted are formed in the cover part, and a fixing part (31) fixed to the panel is formed in the flange part. A first waterproof seal (40A-40D) is attached to each of the plurality of fitting ports, the first waterproof seals seal between the peripheral walls (28) of the plurality of fitting ports and the cable connector, and a second waterproof seal (45) is attached to the outer peripheral surface of the cover portion, the second waterproof seal sealing between the cover portion and the panel.

Description

Electrical connector

The present invention relates to electrical connectors.

The electrical connector fixed to the panel of the housing is known to have a plurality of mating ports for attaching and detaching a plurality of cable connectors (for example, refer to Patent Document 1). The housing of the electrical connector of Patent Document 1 has a cylindrical housing body in which a plurality of fitting openings are formed side by side, and a pair of fixing portions projecting laterally from the housing body. In the panel of the frame body, a mounting hole into which the shell can be inserted is formed. The shell is a mounting hole inserted into the panel from the inner side of the frame. When the shell protrudes from the outside of the panel, the electrical connector is screwed to the inner surface of the panel through a pair of fixing parts. [Prior Technical Literature] [Patent Literature]

[Patent Document 1] JP 2014-107046 A

[The problem to be solved by the invention]

However, this kind of electrical connector may be installed in a place where high waterproofness is required. The above-mentioned electrical connector does not need to separately prepare the electrical connector for each cable connector, and can achieve quasi-space saving, but it has a problem that it cannot sufficiently prevent moisture from entering the inside of the housing.

The present invention is in view of this, and its object is to provide an electrical connector that can save space and can prevent moisture from entering the inside of the housing. [Technical means to solve the problem]

One aspect of the electrical connector of the present invention is a housing provided with a mounting hole to be mounted on a panel of a frame. The housing has a housing body inserted into the mounting hole of the panel, and a housing body inserted from the housing body. A flange portion with an outer peripheral surface protruding to the outside is formed with a plurality of fitting ports for fitting a plurality of cable connectors in the outer side of the frame of the housing body, and a plurality of fitting holes for fixing to the panel are formed in the flange portion The fixing portion is provided with a first waterproof seal in each of the plurality of fitting ports, and the first waterproof seal seals between the peripheral wall of the plurality of fitting ports and the cable connector, in the housing body A second waterproof seal is installed on the outer peripheral surface of the, and the second waterproof seal seals between the housing body and the panel, so as to solve the above-mentioned problems. [Effects of the invention]

In one aspect of the electrical connector of the present invention, the housing body is inserted into the mounting hole of the panel, and the electrical connector is fixed to the panel through the flange in a state protruding from the panel toward the housing body. Since a plurality of fitting ports are formed on the outer side of the housing of the housing body, there is no need to prepare connectors for each cable connector, and installation man-hours can be reduced and space saving can be achieved. In addition, the intrusion of moisture into the frame from between the peripheral wall of the fitting port and the cable connector is suppressed by the first waterproof seal, and the intrusion of moisture into the frame from between the housing body and the panel is in the first 2 The waterproof seal is suppressed. Therefore, it is possible to achieve space saving, and it is possible to install an electrical connector on a panel for which high waterproofness is required.

Hereinafter, this embodiment will be described in detail with reference to the attached drawings. Figure 1 is a perspective view of the receptacle connector and the cable connector of this embodiment. In the following description, the cable connector side of the panel is described as the outside of the housing, and the opposite side is described as the inside of the housing. FR, RE, U, D, L, and R respectively display the front, back, up, down, left, and right directions. Furthermore, in the following description, an example in which the socket connector of the present embodiment is applied to an electric assisted bicycle will be described.

As shown in Figure 1, the socket connector (electrical connector) 20 is a composite connector mounted on the panel 10 of the frame, and is connected to a plurality of cables extending from external units such as light bulbs and meters of electric assist bicycles. Connector (the counterpart connector) 60A-60D. A mounting hole 11 having a rectangular shape long in the left-right direction is formed in the panel 10 of the housing. The angular cylindrical shell portion (housing body) 22 of the socket connector 20 partially protrudes from the outer surface 13 of the panel 10 through the mounting hole 11. Fitting openings 24A-24D are formed in the protruding part of the shell 22, and the cable connectors 60A-60D are fitted into the fitting openings 24A-24D.

The receptacle connector 20 is connected to a plurality of cables 50 extending from the electronic unit provided in the inside S1 of the housing. The plurality of cable connectors 60A-60D are fitted into the fitting ports 24A-24D of the socket connector 20, so that the electronic unit inside the housing S1 and various external units outside the housing S2 are electrically connected. In addition, in order to prevent mis-installation of the connectors, the cable connectors 60A-60D are formed in different housing shapes. The fitting openings 24A-24D of the receptacle connector 20 are formed into an opening shape that fits the housing shape of the cable connector 60A-60D.

In this way, the receptacle connector 20 integrates the cable connectors 60A-60D extending from each external unit in one place. Compared with the structure in which receptacle connectors are provided in each external unit, space saving can be achieved. And the work efficiency of the connection work can be improved. In the various types of cable connectors 60A-60D, since the opening shapes of the fitting ports 24A-24D of the receptacle connector 20 are different, it is possible to prevent the connector from being incorrectly installed. In addition, in the present embodiment, the receptacle connector 20 is connected to the electronic unit through the cable 50, but the receptacle connector 20 may be connected to the circuit board through an L-shaped terminal or the like.

In addition, since various electronic components are housed in the interior S1 of the housing, high water resistance is required at the place where the receptacle connector 20 is installed on the panel 10 of the housing. Here, the receptacle connector 20 of the present embodiment is provided with a first waterproof seal 40A-40D that can prevent moisture from intruding along the inner surface of the fitting opening 24A-24D toward the interior S1 of the housing, and prevent moisture from flowing. The second waterproof seal 45 (refer to FIG. 3) that penetrates the outer surface of the shell 22 toward the inside S1 of the housing. In addition, the cable connectors 60A-60D are provided with a third waterproof seal that prevents moisture from intruding along the outside of the cable 75 toward the inside S1 of the frame (in the second figure, only the third waterproof seal 70B is shown) ).

Hereinafter, the detailed structure of the cable connector and the receptacle connector will be described. Fig. 2 is an exploded perspective view of the cable connector of the present embodiment. Fig. 3 is an exploded perspective view of the receptacle connector of the present embodiment. Fig. 4A is a plan view of the receptacle connector of the present embodiment, and Fig. 4B is a cross-sectional view taken along line A-A in Fig. 4A. 5A and 5B are perspective views of the male terminal of this embodiment. Fig. 6 is a partial enlarged view of the periphery of the terminal accommodating space of the present embodiment. Fig. 7 is a diagram showing the mounted state of the receptacle connector of the present embodiment. Fig. 8A is a front view of the receptacle connector attached to the panel of this embodiment, and Fig. 8B is a cross-sectional view taken along the line B-B of Fig. 8A.

As shown in FIG. 2, the cable connector 60B is a signal cable connector, and includes a housing 61B having a substantially angular cylindrical shape extending in the front-rear direction. A plurality of terminal insertion ports (not shown) are formed at the front end of the housing 61B, and a rectangular opening 62 is formed at the rear end of the housing 61B. The female terminal 76 connected to each cable 75 is housed in the housing 61B through the opening 62. The plurality of female terminals 76 are held on the front end side of the housing 61B inside the housing 61B. The front end surface of each female terminal 76 is exposed to the outside from the terminal insertion opening of the housing 61B.

In the opening 62 of the housing 61B, a third waterproof seal 70B that seals between the housing 61B and the cable 75 is installed. The third waterproof seal 70B is formed of an elastic material such as silicone rubber to form a substantially rectangular parallelepiped, and a plurality of installation holes 71 into which the plurality of cables 75 can be inserted in a state where the plurality of cables 75 are in close contact are formed along the front-rear direction. A plurality of ring-shaped protrusions 72 having a mountain shape in a cross-sectional view are formed on the outer peripheral surface of the third waterproof seal 70B that is in contact with the inner peripheral surface of the housing 61B. The third waterproof seal 70B is installed in the opening 62 of the housing 61B to slightly crush the plurality of annular protrusions 72 so that the third waterproof seal 70B is crimped to the housing 61B.

The locking mechanism 63 is provided on the upper surface of the housing 61B, and the locking mechanism 63 locks the mating state of the housing 61B of the cable connector 60B and the fitting opening 24B of the receptacle connector 20 (refer to FIG. 3). The lock mechanism 63 includes an arm portion 64 extending rearward with the front end side of the housing 61B as a fixed end, a lock portion 65 formed in the middle of the extending direction of the arm portion 64, and a free arm provided on the arm portion 64端的操作部66。 End of the operation section 66. When the housing 61B is fitted in the fitting opening 24B, the lock portion 65 is locked in the lock hole 25 (refer to FIG. 1) described later, and the fitted state is locked. When the operating portion 66 is pressed from this fitted state, the arm portion 64 is pressed downward, the lock portion 65 is detached from the lock hole 25, and the lock of the fitted state is released.

In addition, a pair of left and right protection parts 67 for protecting the lock mechanism 63 are provided on the upper surface of the housing 61B. The pair of left and right protection portions 67 prevent the operator's hand and object from touching the operating portion 66 to deform the arm portion 64, and prevent the cable 75 from entering between the lock mechanism 63 and the housing 61B, making the lock mechanism 63 inoperable. Here, although the 4-core cable connector 60B has been exemplified, the basic structures of the 3-core, 6-core, and 2-core cable connectors 60A, 60C, and 60D are also the same. Therefore, the description of the 3-core, 6-core, and 2-core cable connectors 60A, 60C, and 60D will be omitted.

As shown in FIG. 3, FIG. 4A, and FIG. 4B, the receptacle connector 20 is a resin-made housing 21 provided with the panel 10 (refer to 1st figure) attached to a housing|casing. The housing 21 has a shell portion 22 inserted into the mounting hole 11 of the panel 10 and a flange portion 23 projecting radially outward from the outer peripheral surface of the front end side of the shell portion 22. The shell portion 22 extends in the front-rear direction and is formed in a substantially angular cylindrical shape with a wide left and right width. In the upper wall of the housing 22, a plurality of lock holes 25 communicating with the fitting ports 24A-24D are formed. The locking portions 65 (refer to FIG. 3) of the cable connectors 60A-60D are locked in the plurality of locking holes 25.

In the rear end side of the shell portion 22, fitting openings 24A-24D having different opening shapes are formed side by side in the left-right direction. The fitting openings 24A-24D extend from the rear end of the housing 22 to the middle position of the housing 22 in the front-rear direction. In addition, the fitting ports 24A-24D have different opening shapes corresponding to the number of poles (the number of connecting wires of the cable 50). For example, the fitting ports 24A-24D are respectively formed with opening shapes corresponding to the number of poles "3 cores", "4 cores", "6 cores", and "2 cores". The cable connectors 60A-60D (refer to Fig. 1) have a housing shape formed in an opening shape corresponding to the fitting ports 24A-24D.

Behind the fitting ports 24A-24D, first waterproof seals 40A-40D are installed. The peripheral wall 28 of the fitting ports 24A-24D and the cable connector 60A-60D (refer to Fig. 1) are sealed by the first waterproof seal 40A-40D. The first waterproof seal 40A-40D is made of an elastic material such as silicon rubber and formed into a ring shape along the opening shape of the fitting port 24A-24D. In addition, in the first waterproof seal 40A-40D, a plurality of locking pieces 41 are provided. The first waterproof seal 40A-40D is pressed into the inner bottom surface of the housing 22, so that the locking piece 41 enters the locking hole 27 formed in the peripheral wall 28 of the housing 22, and is installed in the fitting port 24A The first waterproof seal 40A-40D inside the -24D is prevented from falling off.

On the outer peripheral surface of the shell portion 22, a second waterproof seal 45 is installed. The second waterproof seal 45 seals the space between the housing 21 and the panel 10. The second waterproof seal 45 is formed in a ring shape. The second waterproof seal 45 is press-fitted toward the front end side of the shell portion 22 so that the front end side of the second waterproof seal 45 enters the annular groove 33 of the flange portion 23. Therefore, the second waterproof seal 45 is positioned inside the housing S1 in a state where the socket connector 20 is mounted on the panel 10 (refer to FIG. 1). In addition to the electronic unit inside the housing S1, gears and the like are also housed, and grease is applied to the gears as a lubricant. Therefore, the second waterproof seal 45 is formed of an elastic material excellent in oil resistance.

On the outer peripheral surface of the second waterproof seal 45, a plurality of ring-shaped protrusions 46 having a mountain shape in a cross-sectional view are formed. On the inner peripheral surface of the second waterproof seal 45, a plurality of ring-shaped protrusions 47 having a mountain shape in a cross-sectional view are formed. The amount of protrusion of the annular protrusion 46 on the outer peripheral side is larger than that of the annular protrusion 47 on the inner peripheral side, so that the amount of crushing of the annular protrusion 46 on the outer peripheral side can be largely ensured. The second waterproof seal 45 is attached to the outer peripheral surface of the shell 22 to crush the annular protrusion 47 on the inner peripheral side, so that the second waterproof seal 45 is press-contacted to the shell 22. In addition, the second waterproof seal 45 enters the accommodating recess 15 (refer to FIG. 7) of the panel 10, so that the annular protrusion 46 on the outer peripheral side is crushed, so that the second waterproof seal 45 is crimped to the panel 10 The receiving recess 15.

A pair of fixing portions 31 for fixing the socket connector 20 to the panel 10 are formed on both end sides in the left-right direction of the flange portion 23. An insertion hole 32 for screwing is formed in the pair of fixing parts 31. The outer peripheral surface of the flange portion 23 is formed up and down asymmetry, so that the installation of the socket connector 20 will not be upside down. In the flange portion 23, an annular groove 33 is formed to surround the shell portion 22. The groove width of the annular groove 33 is approximately the same as the thickness of the second waterproof seal 45 on the tip side. The adhesion between the flange portion 23 and the second waterproof seal 45 is improved by making the tip side of the second waterproof seal 45 enter the annular groove 33.

On the front end side of the housing 22, a plurality of terminal accommodating spaces 34 for accommodating male terminals 51 connected to the cables 50 are formed. The terminal accommodating space 34 has only the number of connecting wires forming the corresponding cable 50 in each of the fitting openings 24A-24D. Each terminal accommodating space 34 extends from the front end of the housing 22 toward the fitting openings 24A-24D. Each terminal accommodating space 34 communicates with the fitting ports 24A-24D. By accommodating the male terminal 51 in each terminal accommodating space 34 from the front end side of the housing part 22, the pin-shaped contact part 55 of the male terminal 51 protrudes from the back of the fitting opening 24A-24D.

As shown in Fig. 5A and Fig. 5B, the male terminal 51 is formed of a conductive material such as copper alloy. The core wire caulking portion 53, the box-shaped intermediate portion 54, and the pin-shaped contact portion 55 are connected and formed. The outer sheath of the cable 50 is riveted to the outer sheath riveting portion 52, and the core wire protruding from the outer sheath of the cable 50 is riveted to the core riveting portion 53, so that the male terminal 51 and the cable 50 (refer to Fig. 4B )connection. The intermediate portion 54 is a portion accommodated in the terminal accommodating space 34 (refer to FIG. 4B) of the housing portion 22. A notch hole 56 is formed on one side surface of the intermediate portion 54 to be locked by a notch 35 described later.

As shown in FIG. 6, the inner wall of the terminal accommodating space 34 of the housing 22 is provided with a notch 35 for locking the male terminal 51. The notch 35 is inclined to move away from the inner wall of the terminal accommodating space 34 as it faces the insertion direction I1 of the male terminal 51. When the male terminal 51 is inserted into the terminal accommodating space 34, the notch 35 is press-fitted so that the male terminal 51 enters to a predetermined position. When the male terminal 51 is positioned at a predetermined position, the notch 35 returns elastically, and the tip of the notch 35 enters the notch hole 56 of the male terminal 51 (refer to FIG. 5A). Thereby, the male terminal 51 is fixed to the terminal accommodating space 34, and the cable 50 is prevented from falling off from the receptacle connector 20.

Since the male terminal 51 is installed in the socket connector 20 through the cut 35, the stop of the male terminal 51 generated by the cut 35 can be released by using a special jig or the like. Therefore, even if the male terminal 51 is incorrectly inserted into the terminal accommodating space 34 of the receptacle connector 20, the stop of the cut 35 can be released by a special jig, and the male terminal 51 can be easily connected from the socket. The device 20 is removed. In this way, because the male terminal 51 connected to the cable 50 is directly attached to the receptacle connector 20, the structure of the connector of the receptacle connector 20 can be simplified and the cost can be reduced.

As shown in FIG. 7, FIG. 8A, and FIG. 8B, the socket connector 20 is fixed to the panel 10 through a pair of bolts 39. In the panel 10, an annular bulge 14 is provided. The ring-shaped bulging portion 14 bulges from the inner surface 12 of the panel 10 toward the inside S1 side of the frame so as to surround the mounting hole 11. The inner side of the annular bulge 14 is formed with a accommodating recess 15 for accommodating the socket connector 20. The accommodating recess 15 is formed by the front recess 16 capable of accommodating the flange portion 23 of the housing 21, and the rear recess 17 capable of housing the second waterproof seal 45 installed on the housing 22 of the housing 21 Two paragraphs before and after.

The flange portion 23 of the housing 21 is housed in the front-stage concave portion 16 of the housing concave portion 15 in a positioned state. In more detail, corresponding to the upper and lower asymmetric outer peripheral surface of the flange portion 23, the inner peripheral surface of the front-stage recessed portion 16 is formed with the upper and lower asymmetrical outer peripheral surface. Therefore, the flange portion 23 is not accommodated in the front recessed portion 16 without being up and down, and the socket connector 20 can be mounted on the panel 10 in the correct direction. In the bottom surface of the front-stage recess 16, in a state where the flange portion 23 is housed in the front-stage recess 16, a pair of screw holes 18 are formed at positions corresponding to the pair of insertion holes 32 of the flange portion 23.

In the rear-stage recess 17 of the accommodating recess 15, the second waterproof seal 45 attached to the housing 22 is accommodated in a tightly closed state. In the bottom surface of the rear-stage recess 17, a mounting hole 11 into which the shell 22 exposed from the second waterproof seal 45 enters is formed. When the socket connector 20 is mounted on the panel 10, the shell 22 is inserted into the mounting hole 11, the second waterproof seal 45 is accommodated in the rear recess 17, and the flange 23 is accommodated in the front recess 16. The pair of bolts 39 are screwed to the pair of screw holes 18 of the accommodating recess 15 through the pair of insertion holes 32 of the flange portion 23, so that the socket connector 20 is attached to the panel 10.

Next, referring to Figures 9A, 9B, and 10, the operation of attaching the cable connector to the receptacle connector will be described, and the waterproof structure of the receptacle connector will be described. 9A and 9B are transition diagrams of the installation operation of the cable connector of this embodiment. Fig. 10 is a cross-sectional view showing the waterproof structure of the receptacle connector of this embodiment. Here, although a 4-core cable connector is exemplified, the same applies to 3-core, 6-core, and 2-core cable connectors.

As shown in FIG. 9A, the receptacle connector 20 is attached to the panel 10 in a state where the shell portion 22 protrudes from the outer surface 13 of the panel 10. A first waterproof seal 40B is installed behind the fitting opening 24B of the shell 22. On the outer peripheral surface of the shell portion 22, a second waterproof seal 45 is installed. The annular protrusion 46 on the outer peripheral side of the second waterproof seal 45 is crushed by the inner peripheral surface of the accommodating recess 15, and the annular protrusion 47 on the inner peripheral side of the second waterproof seal 45 (refer to FIG. 3) It is crushed by the outer peripheral surface of the shell portion 22. The second waterproof seal 45 seals the space between the housing recess 15 and the housing 22 of the panel 10.

In the cable connector 60B, a third waterproof seal 70B is installed in the opening 62 at the rear end of the housing 61B. The cable 75 is inserted into the installation hole 71 (refer to FIG. 2) of the third waterproof seal 70B in the tightly closed state. The annular protrusion 72 on the outer peripheral side of the third waterproof seal 70B is crushed by the inner peripheral surface of the housing 61B. The rear end side of the housing 61B of the cable connector 60B is sealed by the third waterproof seal 70B. In addition, the shape of the housing of the cable connector 60B is an opening shape that fits the fitting opening 24B of the receptacle connector 20, and the cable connector 60B is pressed into the fitting opening 24B in the insertion direction I2.

As shown in FIG. 9B, when the housing 61B enters the fitting port 24B, the arm portion 64 of the locking mechanism 63 on the upper surface of the housing 61B is depressed, and the housing 61B is moved in the insertion direction I2. If the housing 61B is in contact with the rear surface of the fitting opening 24B, the arm portion 64 elastically returns to enter the locking portion 65 into the locking hole 25 of the housing 22, and the fitting state of the fitting opening 24B and the housing 61B is locked. At this time, the front end of the housing 61B enters the inside of the first waterproof seal 40B, and the peripheral wall 28 of the fitting port 24B and the housing 61B are sealed by the first waterproof seal 40B.

Also, as shown in FIG. 10, a slight gap is formed in the panel 10 and the receptacle connector 20, and a slight gap is formed in the receptacle connector 20 and the cable connector 60B. Therefore, in the installation place of the receptacle connector 20, there exists an intrusion path of moisture from the exterior S2 of the housing to the interior S1 of the housing. For example, there is a first intrusion path L1 for moisture entering from the lock hole 25 of the housing 22 and the like toward the interior S1 of the housing, and a second entry path for moisture entering from the gap between the housing 22 and the panel 10 toward the interior S1 of the housing. L2, the third intrusion path L3 along the cable 75 of the cable connector 60B toward the interior S1 of the housing.

However, in the middle of the first intrusion path L1, the first waterproof seal 40B is arranged. The space between the peripheral wall 28 of the fitting port 24B and the housing 61B is sealed by the first waterproof seal 40B. In the middle of the second intrusion path L2, a second waterproof seal 45 is arranged. The second waterproof seal 45 seals the space between the housing 22 and the receiving recess 15 of the panel 10. Furthermore, in the middle of the third intrusion path L3, a third waterproof seal 70B is arranged. The space between the housing 61B and the cable 75 is sealed by the third waterproof seal 70B. With this structure, the first to third entry paths L1-L3 of moisture from the outside S2 of the frame to the inside S1 of the frame can be completely blocked, and the waterproofness of the inside S1 of the frame can be improved.

In addition, the shell portion 22 of the receptacle connector 20 partially protrudes from the outer surface 13 of the panel 10 to separate the operating portion 66 of the cable connector 60B from the outer surface 13 of the panel 10. The operation portion 66 is separated from the outer surface 13 of the panel 10, so that the operation portion 66 can be easily operated by the tip of the operator's finger or the like, and the operability of the operation portion 66 can be improved. Furthermore, in the upper surface of the case portion 22, a plurality of lock holes 25 are formed in each of the fitting openings 24A-24D (refer to FIG. 1). Thereby, for the cable connectors 60A-60D fitted in the respective fitting ports 24A-24D, the operation part 66 can be operated from above similarly, and the operability of the operation part 66 by the operator can be further improved.

With reference to Fig. 11, another example of use of the receptacle connector of this embodiment will be described. Fig. 11 is a perspective view of another example of use of the receptacle connector of this embodiment.

In the above-mentioned embodiment, although the use example of installing the cable connectors 60A-60D with different numbers of poles to all the fitting ports 24A-24D of the receptacle connector 20 is described, the use example of the receptacle connector is not limited to The above-mentioned usage example. The receptacle connector 20 of this embodiment can respond in various ways according to the user's request. For example, as shown in other usage examples in Figure 11, only three fitting ports 24A, 24B, 24D among the four fitting ports 24A-24D (refer to Figure 1) are used, and a 3-core cable can be used. The connector 60A and the 4-core cable connector 60B are used as a 2-core cable connector.

In this case, the cable connector type cap 80 is fitted into the fitting opening 24C that is not used by the receptacle connector 20. The outer shape of the cap 80 differs from the outer shape of the housing 61C (refer to FIG. 1) of the cable connector 60C only in the point where no space is formed inside. It can replace the housing 61C of the cable connector 60C, by fitting the cap 80 to the unused fitting port 24C, and the first waterproof seal 40C (refer to Fig. 3) between the fitting port 24C and the cap 80 Is sealed. Therefore, it is possible to prevent moisture from entering the interior S1 of the housing from the fitting port 24C that is not used.

And the three-core cable connector 60A is to insert the cable 75 into the two installation holes 71 among the three installation holes 71 of the third waterproof seal 70A, and insert the waterproof rod 81 into the remaining The lower 1 mounting hole 71. The 4-core cable connector 60B is to insert the cable 75 into the 2 mounting holes 71 of the 4 mounting holes 71 of the third waterproof seal 70B, and the waterproof rod 81 is inserted into the remaining two mounting holes 71 in the closed state. With the third waterproof seals 70A and 70B into which the waterproof rod 81 is inserted, the 3-core cable connector 60A and the 4-core cable connector 60B can be used as 2-core cable connectors.

As described above, according to the present embodiment, since a plurality of fitting ports 24A-24D are formed on the outer S2 side of the frame of the housing portion 22, there is no need to prepare a connector for each cable connector 60A-60D. Time reduction and space saving can be achieved. The intrusion of moisture from between the peripheral walls 28 of the fitting ports 24A-24D and the cable connectors 60A-60D into the interior S1 of the housing is suppressed by the first waterproof seal 40A-40D. The intrusion of moisture from between the case 22 and the panel 10 into the interior S1 of the housing is suppressed by the second waterproof seal 45. Furthermore, the intrusion of moisture from the cables 75 of the cable connectors 60A-60D into the interior S1 of the housing is suppressed by the third waterproof seals 70A-70D. Therefore, space saving can be achieved, and the receptacle connector 20 can be provided in the panel 10 for which high waterproofness is required.

In addition, in the present embodiment, the structure of the receptacle connector 20 has been described. The fitting ports 24A-24D are formed in a row in the housing 22 and are mounted on the panel 10 from the inside S1 side of the frame. It is not limited to this structure. As shown in the modified examples of FIGS. 12A and 12B, the receptacle connector 95 may be formed in two upper and lower rows at the fitting openings 98A-98D of the housing 96, and may be mounted on the panel 90 from the outside S2 side of the housing. In the fitting ports 98A-98D of the shell 96, first waterproof seals 101A-101D are installed. On the outer peripheral surface of the shell portion 96, a second waterproof seal 102 is installed.

In addition, the flange portion 97 is provided on the rear end side of the shell portion 96, and an annular bulge portion 92 is formed on the outer surface 94 of the panel 90 to surround the mounting hole 91. A pair of screw holes 93 are formed on the surface of the annular bulge 92. The pair of bolts 100 are screwed to the pair of screw holes 93 by penetrating the pair of insertion holes 99 of the flange portion 97, so that the socket connector 95 is attached to the panel 90. When the receptacle connector 95 is attached to the panel 90, the cable connectors 103A-103D are installed in the respective fitting ports 98A-98D of the receptacle connector 95.

In addition, in this embodiment, although the plural cable connectors are signal cable connectors, the plural cable connectors may include signal cable connectors and power cable connectors. For example, as shown in the other modification of FIG. 13, the receptacle connector 105 may be formed in the shell 106: approximately rectangular fitting ports 107A-107D for a plurality of signal cable connectors, and power cable connection Approximately circular fitting port 108 for the instrument. As a result, the receptacle connector for the signal cable connector and the receptacle connector for the power cable connector can be integrated, and the number of parts and working hours can be reduced, and the cost can be reduced.

In addition, although it has been explained in this embodiment that the socket connector is an example of being applied to electric assisted bicycles, the socket connector can also be applied to other passenger seats such as electric scooter and electric wheelchairs other than electric assisted bicycles. Tools, and other devices that require water resistance.

In addition, in this embodiment, the fitting openings of the socket connector are formed with different opening shapes, but the fitting openings of the socket connector may also be formed with the same opening shape.

In this embodiment, the second waterproof seal is formed of an elastic material with oil resistance. However, when the socket connector is mounted on a device that does not use lubricating oil such as grease, the second waterproof seal It can also be formed by elastic materials such as silicone rubber.

In addition, in the present embodiment, the outer peripheral surface of the flange portion is vertically asymmetrical, but the outer peripheral surface of the flange portion may be rotationally asymmetrical. For example, the outer peripheral surface of the flange part may be formed left-right asymmetrically.

In this embodiment, the shell part protrudes from the outside of the panel, but the shell part may also protrude from the outside of the panel. For the shell, it is sufficient to expose the plurality of fitting openings from the outside of the panel so that the cable connector can be connected.

In addition, in this embodiment, the flange portion may extend outward in the radial direction from the entire circumference of the outer peripheral surface of the shell portion, and the flange portion may extend outward in the radial direction from at least a part of the outer peripheral surface of the shell portion.

As described above, the electrical connector (receptacle connector 20) of this embodiment is a housing (21) provided with a mounting hole (11) to be mounted on the panel (10) of the frame. The housing has: The housing body (shell part 22) of the mounting hole and the flange part (23) protruding outward from the outer peripheral surface of the housing body are formed with a plurality of cable connectors ( 60A-60D) multiple fitting ports (24A-24D) for fitting, a fixing portion (31) for fixing to the panel is formed in the flange portion, and a first waterproof seal ( 40A-40D), the first waterproof seal seals between the peripheral wall (28) of the plurality of fitting ports and the cable connector, and the second waterproof seal (45) is installed on the outer peripheral surface of the housing body, The second waterproof seal seals between the casing body and the panel. According to this structure, the housing body is inserted into the mounting hole of the panel, and the electrical connector is fixed to the panel through the flange part in a state where the housing body protrudes from the panel. Since a plurality of fitting ports are formed on the outer side of the housing of the housing body, there is no need to prepare connectors for each cable connector, and installation man-hours can be reduced and space saving can be achieved. In addition, the intrusion of moisture into the frame from between the peripheral wall of the fitting port and the cable connector is suppressed by the first waterproof seal, and the intrusion of moisture into the frame from between the housing body and the panel is on the second The waterproof seal is suppressed. Therefore, it is possible to achieve space saving, and it is possible to install an electrical connector on a panel for which high waterproofness is required.

In the electrical connector of this embodiment, the plural fitting openings are formed with different opening shapes. According to this structure, it is possible to prevent the plural cable connectors from being mistakenly installed in the plural fitting ports.

In the electrical connector of this embodiment, in the housing (S1) side of the housing body, a terminal accommodating space (34) for accommodating the terminal (male terminal 51) connected to the cable is formed, and the terminal accommodates The inner wall of the space is provided with a cutout (35) for preventing the terminal from falling off. According to this structure, when the terminal connected with the cable is inserted in the terminal accommodating space by mistake, the cut-out prevention can be released by a special jig, and the terminal can be easily removed from the socket connector. Therefore, since the terminal is directly mounted on the receptacle connector, the structure of the connector of the receptacle connector can be simplified and the cost can be reduced.

In the electrical connector of this embodiment, the outer peripheral surface of the flange portion is rotationally asymmetrical, and the panel is formed with a receiving recess (15) for accommodating the flange portion in a positioned state. According to this structure, since the flange is received in the receiving recess of the panel from a predetermined direction, the electrical connector can be mounted on the panel from the correct direction.

In the electrical connector of this embodiment, the housing body is formed with a plurality of locking holes (25) connected to the plurality of fitting ports, and in the plurality of cable connectors, a plurality of locks that are locked to the plurality of locking holes are formed. The operating portion (65) and the operating portion (66) for releasing the locking of the multiple locking portions to the multiple locking holes protrude the housing body from the outside of the panel, and separate the operating portions of the multiple cable connectors from the outside of the panel. According to this structure, by separating the operation part of the cable connector from the outside of the panel, it is easy to operate the operation part by the tip of the operator's finger or the like, and the operability of the operation part can be improved.

In the electrical connector of this embodiment, the plurality of fitting ports are arranged in the longitudinal direction of the housing body, and the plurality of locking holes are formed on one end surface of the housing body in the width direction. According to this structure, since the operation part can be operated from the same direction with respect to the cable connector fitted to each fitting port, the operability of the operation part by an operator can be improved.

In the electrical connector of the present embodiment, the cable connector-type cap (80) is fitted into the unused fitting port among the plurality of fitting ports. According to this structure, the unused fitting port and the cable connector-type cap are sealed by the first waterproof seal, and it is possible to prevent moisture from entering the unused fitting port and entering the inner surface of the panel.

In the electrical connector of this embodiment, the plural cable connectors include signal cable connectors and power cable connectors, and the plural fitting ports include: signal cable connectors (107A-107D), And the fitting port (108) for the power cable connector. According to this structure, the electrical connector for the signal cable connector and the electrical connector for the power cable connector can be integrated, so that the number of parts and working hours can be reduced, and the cost can be reduced.

In addition, although the present embodiment has been described, there may be other embodiments, such as a combination of all or part of the above-mentioned embodiments and modifications.

In addition, the technology of the present invention is not limited to the above-mentioned embodiment, and various changes, substitutions, and modifications can be made without departing from the scope of the technical idea. Furthermore, technological advancements or other techniques of evolution can be used, and if the technical ideas are realized by other methods, they can also be implemented by their methods. Therefore, the scope of patent application is all the implementation aspects that can be obtained within the scope including the technical idea.

10: Panel 11: Mounting hole 13: The outside of the panel 15: Containment recess 20: Socket connector (electrical connector) 21: Shell 22: Shell part (shell body) 23: Flange 24: Fitting mouth 25: Locking hole 27: Locking hole 28: Zhou wall 34: terminal housing space 35: incision 40A~40D: The first waterproof seal 45, 102: 2nd waterproof seal 50: Cable 51: Male terminal (terminal) 60A~60D: Cable connector 65: Locking part 66: Operation Department 70A~70D: 3rd waterproof seal 80: Cap 107A~107D: Fitting port for signal cable 108: Fitting port for power cable S1: Inside the frame S2: Outside the frame

[Figure 1] A perspective view of the receptacle connector and the cable connector of this embodiment. [Figure 2] An exploded perspective view of the cable connector of this embodiment. [Figure 3] An exploded perspective view of the receptacle connector of this embodiment. [Fig. 4A] A plan view of the receptacle connector of this embodiment. [Fig. 4B] A cross-sectional view taken along the line A-A in Fig. 4A. [Fig. 5A] A perspective view of the male terminal of this embodiment. [Fig. 5B] A perspective view of the male terminal of this embodiment. [Figure 6] An enlarged view of a part of the periphery of the terminal accommodating space of the present embodiment. [Figure 7] A diagram showing the mounting state of the receptacle connector of this embodiment. [Figure 8A] A front view of the socket connector mounted on the panel of this embodiment. [Fig. 8B] A cross-sectional view taken along the line B-B in Fig. 8A. [Figure 9A] A transition diagram of the installation operation of the cable connector of this embodiment. [Figure 9B] A transition diagram of the installation operation of the cable connector of this embodiment. [Figure 10] A cross-sectional view showing the waterproof structure of the receptacle connector of this embodiment. [Fig. 11] A perspective view of another example of use of the receptacle connector of this embodiment. [Figure 12A] A perspective view of a receptacle connector of a modified example. [Figure 12B] A perspective view of the receptacle connector of the modification. [Figure 13] A front view of a socket connector of another modification.

20: Socket connector (electrical connector)

21: Shell

22: Shell part (shell body)

23: Flange

24A~24D: Mating port

25: Locking hole

27: Locking hole

28: Zhou wall

31: Fixed part

32: Through hole

33: Annular groove

40A~40D: The first waterproof seal

41: Locking piece

45: 2nd waterproof seal

46: Ring protrusion

47: Annular protrusion

50: Cable

51: Male terminal (terminal)

55: Contact

Claims (8)

An electrical connector, A housing with mounting holes to be mounted on the panel of the frame, The housing has: a housing body inserted into the mounting hole of the panel, and a flange portion projecting outward from the outer peripheral surface of the housing body, and a plurality of cables are formed on the outer side of the frame of the housing body The plurality of fitting ports where the connector is fitted are formed with a fixing portion for fixing to the panel in the flange portion, A first waterproof seal is installed in each of the plurality of fitting ports, and the first waterproof seal seals between the peripheral wall of the plurality of fitting ports and the cable connector, A second waterproof seal is installed on the outer peripheral surface of the housing body, and the second waterproof seal seals between the housing body and the panel. Such as the electrical connector of claim 1, in which, The aforementioned plural fitting openings are formed with different opening shapes. Such as the electrical connector of claim 1 or 2, in which, On the inner side of the housing of the housing body, a terminal accommodating space for accommodating the terminal connected to the cable is formed, The inner wall of the terminal accommodating space is provided with a cutout for preventing the terminal from coming off. Such as the electrical connector of claim 1 or 2, in which, The outer peripheral surface of the aforementioned flange portion is rotationally asymmetrical, In the aforementioned panel, a housing recessed portion for housing the aforementioned flange portion in a positioned state is formed. Such as the electrical connector of claim 1 or 2, in which, In the housing body, a plurality of locking holes connected with the plurality of fitting ports are formed, The plurality of cable connectors are formed with a plurality of locking portions that are locked to the plurality of locking holes, and an operation portion for releasing the locking of the plurality of locking portions to the plurality of locking holes, The housing body protrudes from the outer surface of the panel, so that the operating parts of the plurality of cable connectors can be separated from the outer surface of the panel. Such as the electrical connector of claim 5, in which, The plurality of fitting ports are juxtaposed in the longitudinal direction of the housing body, and the plurality of locking holes are formed on one end surface of the housing body in the width direction. Such as the electrical connector of claim 1 or 2, in which, The cable connector type cap is fitted into the unused fitting port among the aforementioned plural fitting ports. Such as the electrical connector of claim 1 or 2, in which, The aforementioned plural cable connectors include signal cable connectors and power cable connectors, The aforementioned plural fitting ports include a fitting port for a signal cable connector and a fitting port for a power cable connector.

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