WO2017119387A1 - コネクタの防水構造 - Google Patents
コネクタの防水構造 Download PDFInfo
- Publication number
- WO2017119387A1 WO2017119387A1 PCT/JP2016/089060 JP2016089060W WO2017119387A1 WO 2017119387 A1 WO2017119387 A1 WO 2017119387A1 JP 2016089060 W JP2016089060 W JP 2016089060W WO 2017119387 A1 WO2017119387 A1 WO 2017119387A1
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- WIPO (PCT)
- Prior art keywords
- peripheral surface
- housing
- male
- female
- annular member
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
- H01R13/46—Bases; Cases
- H01R13/52—Dustproof, splashproof, drip-proof, waterproof, or flameproof cases
- H01R13/5219—Sealing means between coupling parts, e.g. interfacial seal
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
- H01R13/62—Means for facilitating engagement or disengagement of coupling parts or for holding them in engagement
Definitions
- the present invention relates to a waterproof structure for a connector.
- a waterproof connector for connecting between electric wires is mounted on an automobile or the like.
- a female connector in which a cylindrical inner housing in which a cavity for receiving a female terminal is formed and a cylindrical outer housing that surrounds the inner housing are integrally formed, and a cylindrical shape in which a cavity for receiving a male terminal is formed.
- a waterproof connector that includes a male connector having a male housing and is configured by fitting both connectors.
- This type of waterproof connector has an annular rubber packing mounted on the outer peripheral surface of the inner housing of the female connector.
- the male housing is inserted into the gap between the inner housing and the outer housing of the female connector. Since the packing is in close contact with the outer peripheral surface of the inner housing and the inner peripheral surface of the male housing, water can be prevented from entering the gaps between the cavities.
- this type of waterproof structure requires a space for mounting the packing inside the female connector. For this reason, the outer diameter dimension of a waterproof connector will become large.
- the male housing is inserted into the female housing while pressing the packing. For this reason, the load at the time of insertion of a male housing becomes large. Therefore, as a waterproof structure that does not use packing, for example, a disc-like elastic sealing plate is provided on the inner surface of the female housing, and when the two connectors are fitted, the male housing inserted into the female housing is fitted.
- a structure is known in which the tube tip in the opposite direction is abutted against a seal plate to prevent water from entering (see, for example, Patent Document 1).
- This invention is made in view of such a problem, and makes it a subject to provide the waterproof structure of the connector which can prevent the fall of the waterproof performance resulting from the plastic deformation of a connector.
- the waterproof structure of the connector according to the present invention is a waterproof structure of a connector in which cavities in which terminals are respectively accommodated are formed in a pair of housings that are fitted to each other.
- An annular member surrounding the opening of the cavity is formed so as to protrude in the fitting direction, and one of the annular members is inclined so that the outer peripheral surface extends radially outward from the tip toward the back, A plurality of corners in which the surface presses the inner peripheral surface of the other annular member and is symmetric with respect to the central axis of the annular member in a cross section perpendicular to the fitting direction.
- the corner portion has a plurality of corner portions whose curvature of the outer peripheral surface is larger than the curvature of the outer peripheral surface of another portion, and the inclination angle of the outer peripheral surface of the corner portion with respect to the fitting direction is different from that of the other portion. Of the outer peripheral surface Greater than the inclination angle to the serial connecting direction, as configured.
- the outer peripheral surface of one annular member is formed in a shape that presses the inner peripheral surface of the other annular member. For this reason, when the pair of housings are fitted, the other annular member is elastically deformed by the inner circumferential surface being pressed by the outer circumferential surface of the one annular member, and the outer circumference of the one annular member is restored by the restoring force of this elastic deformation. Press the surface.
- the annular members are pressed against each other over the entire circumference within the elastic limit, it is possible to prevent water from entering between the annular members.
- a space for providing a rubber packing inside the connector becomes unnecessary, and the outer diameter of the connector can be reduced. Thereby, size reduction of a connector is realizable.
- a gap corresponding to the inclination angle of the corner portion having a large curvature is formed between the corner portion having a large curvature and the inner peripheral surface of the other annular member. That is, when the pair of housings are fitted, the timing at which the inner peripheral surface of the other annular member comes into contact with the corner portion having the large curvature of the outer peripheral surface is later than other portions of the outer peripheral surface. As a result, the amount of lap between the outer peripheral surface and the inner peripheral surface of the corner portion having a large curvature is relatively smaller than other portions, and the strain generated in the corner portion having a large curvature on the outer peripheral surface is dispersed.
- one housing of the pair of housings is inserted into the other housing formed in a cylindrical shape, and the outer peripheral surface of one housing is at least three that presses the inner peripheral surface of the other housing. It has a projection part, and it is preferable that the projection part is spaced apart from each other in the circumferential direction.
- the one housing inserted into the other housing is supported by the inner peripheral surface of the other housing through the respective protrusions, it is possible to prevent the backlash of the one housing, and the annular member It is possible to improve the waterproofness by maintaining a good contact state (for example, a contact angle) between them. Further, according to this, since one of the housings can be supported with a simple structure, the connector structure is simplified and the waterproof connector can be easily downsized.
- the protrusions can be formed on the inner peripheral surface of the other housing instead of the outer peripheral surface of one housing. That is, the inner peripheral surface of the other housing has at least three protrusions that press the outer peripheral surface of one housing, and the protrusions are configured to be spaced apart from each other in the circumferential direction. You can also.
- the present invention it is possible to provide a waterproof structure for a connector that prevents a decrease in waterproof performance due to plastic deformation of the connector. Further, according to the present invention, it is possible to provide a waterproof structure for a connector that allows the connector to be miniaturized. In addition, according to the present invention, it is possible to provide a waterproof structure for a connector that improves the assembly workability of the connector because the insertion load of the housing is small.
- FIG. 1 is an exploded perspective view of an embodiment of a waterproof connector according to the present invention.
- FIG. 2 is a view of the waterproof connector of FIG. 1 as seen from the back side of the female connector.
- FIG. 3 is an external perspective view of the male connector.
- FIG. 4 is a front view of the male connector of FIG.
- FIG. 5 is an external perspective view of the female connector.
- 6 is a cross-sectional view taken along the line AA in FIG.
- FIG. 7 is a partially enlarged view in the frame of FIG. 8A is a partially enlarged view of the female annular member
- FIG. 8B is a cross-sectional view taken along the line BB in FIG. 8A
- FIG. 8C is FIG. 8A. It is CC sectional view taken on the line.
- FIG. 9 is a diagram for explaining the fitting operation between the male connector and the female connector.
- 10 is a cross-sectional view taken along the line DD in FIG.
- FIG. 11 is a cross-section
- FIGS. 1 to 11 an embodiment of a waterproof structure of a waterproof connector to which the present invention is applied will be described with reference to FIGS. 1 to 11.
- a waterproof connector mounted on an automobile, a motorcycle, or the like will be described as an example.
- the waterproof structure of the connector of the present invention can be applied to connectors for various uses.
- a waterproof connector (hereinafter referred to as a connector) 11 includes a male connector 13 and a female connector 15 as shown in FIGS.
- the connector 11 has a male housing (the other housing) 17 of the male connector 13 and a female housing (one housing) 19 of the female connector 15 fitted together so that the male terminal 21 and the female housing accommodated in the male housing 17 are fitted.
- the female terminal 23 accommodated in 19 is electrically connected.
- An electric wire 25 is connected to the male terminal 21, and an electric wire 27 is connected to the female terminal 23.
- the female housing 19 is locked in a state of being inserted inside the male housing 17.
- an example is described in which two terminals are accommodated in each connector, but the number of terminals accommodated is not limited to two.
- the X direction in FIG. 1 is defined as the front-rear direction
- the Y direction is defined as the width direction
- the Z direction is defined as the height direction
- the mating direction of the male and female connectors is defined as the front. It is defined as
- the male connector 13 has a male housing 17 formed in a cylindrical shape with an insulating synthetic resin, and a male terminal 21 accommodated in the male housing 17 from behind.
- the male housing 17 includes a cylindrical base 31 in which two male terminal accommodating chambers (cavities) 29 for accommodating two male terminals 21 are formed, and a base 31.
- An electric wire holding portion 33 protruding rearward and a hood portion 35 protruding forward from the base portion 31 are integrally formed.
- the hood portion 35 has a peripheral wall continuous with the peripheral wall of the base portion 31 and is formed in a cylindrical shape, and a cross section perpendicular to the front-rear direction has an oval shape whose longitudinal direction is the width direction. As shown in FIG. 3, the hood portion 35 includes a guide groove 37 extending in the front-rear direction of the inner wall, and a plate-like wall portion 39 that rises flush with the front end surface.
- the wall portion 39 includes a pair of first cutout portions 41 formed by cutting upward from the lower ends, and a second cutout portion that is located inside each first cutout portion 41 and cut out upward from the lower ends. 43.
- each male terminal accommodating chamber 29 is arranged in parallel in the width direction of the male housing 17 and are formed by partitioning with partition walls (not shown). The lances (not shown) extending inward are engaged with the male terminals 21, respectively. The male terminal 21 is held (locked) at the set position.
- each male terminal accommodating chamber 29 has an opening 47 that opens in the front end surface 45 of the base portion 31 surrounded by the hood portion 35 and a through-hole that penetrates the electric wire holding portion 33 in the front-rear direction. 49 in communication in the front-rear direction.
- a cylindrical male-side annular member 51 that protrudes forward from the periphery of the opening 47 of the front end surface 45 so as to surround the opening 47 is provided inside the hood portion 35.
- the male side annular member 51 has an outer peripheral surface arranged away from the inner peripheral surface of the hood portion 35, and a front end surface located behind the front end surface of the hood portion 35.
- the male housing 17 has a lock arm 53 that extends forward and is supported in a cantilever manner.
- the lock arm 53 extends forward from the base end portion 59 and a base end portion 59 supported by a pair of wall portions 55 erected upward from both side surfaces of the base portion 31 in the width direction. Arm portion 61.
- the lock arm 53 is configured such that the front end portion of the arm portion 61 is displaced upward in the front-rear direction with the base end portion 59 as a fulcrum. As shown in FIG. 6, a lock portion 63 protruding downward is formed at the lower front end of the arm portion 61, and the female housing 19 fitted to the male housing 17 is locked via the lock portion 63. ing. As shown in FIG. 3, the wall portions 39 and 55 located on the front and both sides in the width direction of the lock arm 53 are provided from the base portion 31 to the hood portion 35 so as to surround the lock arm 53. The upper end surfaces of 39 and 55 are set at the same height as the upper end surface of the lock arm 53 or at a position higher than that.
- the male terminal 21 is formed of a conductive metal plate or the like, and an electric wire connection portion 65 that crimps and connects the core wire of the electric wire 25 and a male tab 67 that is connected to the female terminal 23 are integrated.
- the male tab 67 is formed in a rod shape extending in the front-rear direction, protrudes from the front end face 45 in a state where the male terminal 21 is locked to the lance of the male terminal accommodating chamber 29, and is more than the front end of the male-side annular member 51. The length is set so that the tip is located forward.
- the female connector 15 has a female housing 19 formed in a cylindrical shape with an insulating synthetic resin, and a female terminal 23 accommodated in the female housing 19 from the rear.
- the female housing 19 has a cross section orthogonal to the front-rear direction formed substantially similar to the inner peripheral surface of the hood portion 35 of the male housing 17, and accommodates two female terminals 23, respectively.
- the base portion 71 in which the two female terminal accommodating chambers 69 (cavities) are formed and the electric wire holding portion 73 protruding backward from the base portion 71 are integrally formed.
- the female terminal accommodating chambers 69 are arranged in parallel in the width direction of the female housing 19, are formed by partitioning with partition walls (not shown), and each lance (not shown) extending inside is engaged with each female terminal 23, The female terminal 23 is held (locked) at the set position.
- the female terminal housing chamber 69 communicates in the front-rear direction an opening 77 that opens the front end surface 75 of the base portion 71 and a through hole 79 that penetrates the electric wire holding portion 73 in the axial direction.
- the base 71 is provided with a cylindrical female-side annular member 81 that protrudes forward from the front end surface 75 so as to surround the opening 77 from the periphery of the opening 77.
- the female-side annular member 81 has an outer peripheral surface 81a in which the outer peripheral surface of the base 71 is reduced in a stepped shape, and the outer peripheral surface 81a is inclined in a truncated cone shape so as to be tapered forward. It is formed. In other words, the outer peripheral surface 81a is inclined so as to spread radially outward from the tip toward the back (base 71 side).
- the female housing 19 has a pair of protrusions 83 (FIG. 5) extending in the front-rear direction from the upper surface of the base 71, and a step 85 (FIG. 6) extending in the axial direction from the lower surface of the base 71.
- the pair of protrusions 83 are provided substantially parallel to each other in the width direction, and pass through the first notch 41 of the male housing 17 when the female housing 19 is inserted into the male housing 17. It has become.
- a locking portion 87 that protrudes upward is provided inside the pair of protrusions 83.
- the locking portion 87 is formed with an inclined surface 89 that is inclined downward toward the front. When the female housing 19 is inserted into the male housing 17, the locking portion 87 passes through the second notch 43 of the male housing 17 and locks. The arm 53 is pushed up along the inclined surface 89.
- the female terminal 23 is formed of a conductive metal plate or the like, and a rectangular tube into which a wire connecting portion 91 for crimping and connecting a core wire of the electric wire 27 and a male tab 67 of the male terminal 21 are inserted and connected.
- the electric contact portion 93 is integrally formed.
- the electrical contact portion 93 has a distal end located at a position that is flush with the opening 77 of the base 71 or a set distance from the opening 77 in a state where the female terminal 23 is locked to the lance of the female terminal accommodating chamber 69. It is like that.
- FIG. 7 is an enlarged view inside the frame of FIG. 6, and FIG. 8 is an enlarged perspective view of the female-side annular member 81.
- the female-side annular member 81 is fitted inside the male-side annular member 51, and the outer periphery of the female-side annular member 81 is The surface is pressed against the inner peripheral surface of the male annular member 51 so that the annular members come into watertight contact with each other.
- the male-side annular member 51 is a cylindrical member made of resin that extends in a cylindrical shape from the periphery of the opening 47 of the base portion 31 of the male housing 17, and a cross section in a direction orthogonal to the front-rear direction has the width direction as a longitudinal direction. It is formed in a substantially oval shape (FIG. 3).
- the male side annular member 51 has an outer peripheral surface 51 a and an inner peripheral surface 51 b that extend in the front-rear direction, and the thickness dimension of the inner and outer peripheral surfaces is set smaller than the thickness dimension of the inner and outer peripheral surfaces of the female side annular member 81. ing. Thereby, the male side annular member 51 has higher elasticity than the female side annular member 81.
- the front end portion (front end portion) of the inner peripheral surface 51 b of the male side annular member 51 has an inclined surface 99 that widens toward the front end surface, and along the inclined surface 99, the female side annular member 81 is on the male side. It is guided to the inside of the annular member 51.
- the female-side annular member 81 is a cylindrical member made of resin that extends in a cylindrical shape from the peripheral edge of the opening 77 of the base 71 of the female housing 19, and a cross section in a direction orthogonal to the front-rear direction has the width direction as a longitudinal direction. It is formed in a substantially oval shape and is substantially similar to the cross section of the inner peripheral surface 51 b of the male side annular member 51.
- the outer peripheral surface 81a of the female-side annular member 81 is inclined in a direction in which the thickness dimension (thickness) with the inner peripheral surface 81b extending in the front-rear direction increases from the front end (tip) to the back (rear).
- the outer peripheral surface 81a of the female annular member 81 is inclined so as to spread outward in the radial direction from the front end (tip) to the back (rear).
- the female-side annular member 81 whose outer peripheral surface 81 a is inclined has a shape in which the outer peripheral surface 81 a is pressed against the inner peripheral surface 51 b of the male-side annular member 51. That is, the female-side annular member 81 is formed in a truncated cone shape that inclines inwardly with respect to the front-rear direction over the entire circumference of the outer peripheral surface 81a.
- the outer peripheral surface 81a of the female-side annular member 81 will be described as an example of the cross-sectional shape of the annular members 51, 81 orthogonal to the front-rear direction of both annular members.
- the cross-sectional shape of the portion that presses the inner peripheral surface 51 b of the male annular member 51 on the back side (rear side) of the outer peripheral surface 81 a of the female annular member 81 is the upper surface 101 extending in the width direction.
- both side surfaces 105 and 107 formed on the both sides in the width direction and formed in a symmetric gentle circular arc shape, and the curvatures positioned symmetrically with respect to the central axis of the female annular member 81 And four corners 109a to 109d having the largest (the smallest radius of curvature).
- the cross-sectional shape of the inner peripheral surface 51 b of the male-side annular member 51 is substantially similar to the cross-sectional shape of the outer peripheral surface 81 a of the female-side annular member 81. Since the male side annular member 51 is relatively elastic and elastically deforms along the outer peripheral surface 81a of the female side annular member 81, the male side annular member 51 may have a shape capable of pressing the inner side of the outer peripheral surface 81a over the entire circumferential direction. For example, it is not limited to similar shapes.
- the inner dimension between the inner peripheral surfaces 51 b facing each other in the height direction of the male side annular member 51 is L1, and the outer circumference in the height direction at the distal end portion of the female side annular member 81.
- the outer dimension between the surfaces 81a is L2, and the outer dimension between the outer peripheral surfaces 81a in the height direction on the back side is L3.
- the two annular members are set in a relationship of L3> L1> L2, and this relationship is set over the entire circumferential direction.
- the female-side annular member 81 when the female-side annular member 81 is inserted into the male-side annular member 51, the female-side annular member 81 moves while its outer peripheral surface 81a is pressed against the inner peripheral surface 51b of the male-side annular member 51. To do.
- the outer peripheral surface 81a is set such that the curvatures of the corner portions 109a to 109d are larger than those of other portions, and the strength is relatively high. Therefore, when the outer peripheral surface 81a is pressed against the inner peripheral surface 51b, stress concentrates on the corner portions 109a to 109d that are less likely to be elastically deformed than other portions, and the insertion load of the female-side annular member 81 increases.
- the female-side annular member 81 of the present embodiment has corner portions 109a to 109a having the largest curvature on the outer peripheral surface 81a as shown in FIG.
- the inclination angle of 109d with respect to the front-rear direction (FIG. 8B) is set larger than the inclination angle of other parts in the circumferential direction (FIG.
- an outer peripheral surface 81a with which the inner peripheral surface 51b of the male annular member 51 abuts is formed on the rear side), while being largely inclined inward of the female annular member 81 from the back side to the front end with respect to the front-rear direction, The closer to the front end, the larger the step amount between the outer circumferential surface 81a on both sides in the circumferential direction, and therefore when the outer circumferential surface 81a and the inner circumferential surface 51b come into contact, the corners 109a to 109d and the inner circumferential surface 51b Between the corner 10 A gap corresponding to the inclination angle of a to 109d is formed, so that when the male housing 17 and the female housing 19 are fitted, the inner peripheral surface 51b of the male side annular member 51 contacts the corners 109a to 109d.
- the contact timing is later than that of other portions in the circumferential direction of the outer peripheral surface 81a, that is, the amount of lap between the outer peripheral surface 81a of the corner portions 109a to 109d and the inner peripheral surface 51b is smaller than that of other portions in the circumferential direction.
- the stress (strain) generated in the corners 109a to 109d is dispersed, so according to this embodiment, the insertion load when the female-side annular member 81 is inserted into the male-side annular member 51 is reduced. As a result, the assembly workability of the connector 11 can be improved.
- the male terminal 21 to which the electric wire 25 equipped with the rubber plug 111 is connected is inserted into the male housing 17 (male terminal accommodating chamber 29) together with the rubber plug 111.
- the male terminal 21 inserted into the male housing 17 is engaged with a lance (not shown) and is locked at a predetermined position in the male terminal accommodating chamber 29.
- a gap between the outer peripheral surface of the electric wire passing through the male terminal housing chamber 29 and the inner surface of the male terminal housing chamber 29 is sealed by a rubber plug 111.
- the female terminal 23 to which the electric wire 27 equipped with the rubber plug 113 is connected is inserted into the female housing 19 (female terminal accommodating chamber 69) together with the rubber plug 111.
- the male terminal 23 inserted into the female housing 19 is engaged with a lance (not shown) and is locked at a predetermined position in the female terminal accommodating chamber 69.
- a gap between the outer peripheral surface of the electric wire passing through the female terminal housing chamber 69 and the inner surface of the female terminal housing chamber 69 is sealed by a rubber plug 113.
- the female housing 19 of the female connector 15 is inserted into the male housing 17 of the male connector 13 as shown by the arrow in FIG.
- the pair of protrusions 83 of the female housing 19 pass through the first cutouts 41 of the male housing 17, and the locking portion 87 of the female housing 19 is the male housing 17. Passes through the second notch 43. Further, the stepped portion 85 of the female housing 19 is guided along the guide groove 37 of the male housing 17.
- the male-side annular member 51 when the male connector 13 and the female connector 15 are fitted together, the male-side annular member 51 is pressed from the inside by the female-side annular member 81 and is expanded within the elastic limit, so that there is no plastic deformation.
- the gap between the male side annular member 51 and the female side annular member 81 is sealed. Therefore, it is possible to prevent water from entering the openings 47 and 77.
- the waterproofness of the connector 11 can be improved.
- a waterproof rubber packing or the like becomes unnecessary, and the outer diameter of the connector 11 can be reduced. As a result, the connector 11 can be reduced in size and cost.
- the male side annular member 51 and the female side annular member 81 are in contact within the elastic limit, for example, when the connector 11 vibrates, the male side annular member 51 and the female side annular member 81 can integrally absorb and contract vibrations. Therefore, it is possible to prevent the connector 11 from being deteriorated over time and waterproof due to repeated vibration.
- the inclination angle of the corners 109a to 109d is set larger than the inclination angle of other portions in the circumferential direction on the outer peripheral surface 81a of the female-side annular member 81.
- the amount of wrap between the corner portions 109a to 109d and the inner peripheral surface 51b becomes relatively small, and the distortion of the corner portions 109a to 109d is dispersed. Therefore, the insertion load when the female-side annular member 81 is inserted into the male-side annular member 51 is reduced, and the insertion load when the pair of housings are fitted can be reduced. As a result, the assembly workability of the connector 11 can be improved.
- the pair of protrusions 83 are guided to the first cutout portions 41 of the male housing 17, and the stepped portion 85 is the male housing 17. It is guided along the guide groove 37. Thereby, the insertion direction of the female housing 19 with respect to the male housing 17 is restricted, and the female-side annular member 81 can be brought into contact with the set position of the male-side annular member 51 at an appropriate angle. Waterproofness can be maintained stably.
- each of the pair of protrusions 83 and the stepped portion 85 has a function of guiding the female housing 19 to a predetermined position of the male housing 17 and positioning the female housing 19 accommodated in the male housing 17. In either case, the inner peripheral surface of the male housing 17 is not pressed, and the play of the female housing 19 accommodated in the male housing 17 cannot be completely prevented.
- the outer peripheral surface of the base 71 of the female housing 19 has three protrusions 115, 117, and 119 that press the inner peripheral surface of the male housing 17. Yes.
- the projecting portions 115, 117, and 119 are spaced apart from each other in the circumferential direction, the projecting portion 115 and the projecting portion 117 are disposed in the vicinity of the pair of projecting portion 83, and the projecting portion 119 is formed of a stepped portion 85. It is arrange
- Each of the protrusions 115, 117, and 119 extends in the front-rear direction, the cross section orthogonal to the front-rear direction is formed in an arc shape, and the front end surface 121 (FIG. 5) is inclined toward the outer peripheral surface of the base 71. is doing. That is, each protrusion is pushed into the male housing 17 along the inclined end surface 121.
- the female housing 19 inserted into the male housing 17 is supported at three locations in the circumferential direction on the inner peripheral surface of the male housing 17 via the protrusions 115, 117, and 119. Therefore, the female housing 19 is prevented from being loose, and the contact state between the annular members 51 and 81 is favorably maintained. Further, since the female housing 19 is supported by an extremely simple structure, the connector 11 can be easily downsized. It should be noted that there are at least three protrusions, and more protrusions may be formed as necessary. However, since the frictional resistance when the female housing 19 is inserted into the male housing 17 increases and the insertion load increases as the number of protrusions increases, the number of protrusions is preferably three. Similarly, the cross section orthogonal to the front-rear direction of each protrusion is not particularly limited, but is preferably an arc shape in order to reduce the frictional resistance with the male housing 17.
- the projections 123, 125, and 127 that press the outer peripheral surface of the female housing 19 inserted into the male housing 17 are respectively provided in the female housing 19. It can also be formed on the inner peripheral surface. Also in this case, the protrusions 123, 125, and 127 are spaced apart from each other in the circumferential direction, and it is sufficient that there are at least three of them. Is done. Even if comprised in this way, size reduction of the connector 11 becomes easy.
- each of the pair of housings is An annular member (51, 81) surrounding the opening of the cavity is formed to protrude in the fitting direction,
- One annular member (81) The outer peripheral surface (81a) is inclined so as to spread radially outward from the tip, and the outer peripheral surface presses the inner peripheral surface of the other annular member (51) during fitting, and the fitting direction
- a plurality of corners (109a to 109d) that are symmetrical to each other with respect to the central axis of the annular member, and the curvature of the outer peripheral surface of the plurality of corners is the other part Having a plurality of corners larger than the curvature of the outer peripheral surface;
- the inclination angle of the outer peripheral surface of the corner portion with respect to the fitting direction is larger than the inclination angle of the outer peripheral surface of the other portion with respect to the
- One housing (19) of the pair of housings is inserted inside the other housing (17) formed in a cylindrical shape,
- the inner peripheral surface of the other housing has at least three protrusions (123, 125, 127) that press the outer peripheral surface of one of the housings,
- the deterioration of the waterproof performance due to the plastic deformation of the connector can be prevented, the connector can be miniaturized, and the insertion load of the housing can be reduced to improve the assembly workability of the connector. Can be made.
- the present invention exhibiting this effect is useful in the technical field of connectors.
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- Connector Housings Or Holding Contact Members (AREA)
Abstract
Description
互いに嵌合する一対のハウジング(17,19)にそれぞれ端子(21,23)が収容されるキャビティ(29,69)が形成されたコネクタ(11)の防水構造において、
前記一対のハウジングの各々は、
前記キャビティの開口を包囲する環状部材(51,81)が嵌合方向に突出して形成され、
一方の前記環状部材(81)は、
外周面(81a)が先端から奥に向かって径方向外側に広がるように傾斜して、嵌合時に前記外周面が他方の前記環状部材(51)の内周面を押圧し、前記嵌合方向に直交する断面において、該環状部材の中心軸に対して互いに対称な位置にある複数の角部(109a~109d)であって該複数の角部の前記外周面の曲率が他の部位の前記外周面の曲率よりも大きい複数の角部を有し、
前記角部の前記外周面の前記嵌合方向に対する傾斜角度が、他の部位の前記外周面の前記嵌合方向に対する傾斜角度よりも大きい、
コネクタの防水構造。
(2)
前記一対の前記ハウジングのうちの一方の前記ハウジング(19)は、筒状に形成された他方の前記ハウジング(17)の内側に挿入され、
一方の前記ハウジングの前記外周面は、他方の前記ハウジングの内周面を押圧する少なくとも3個の突起部(115,117,119)を有しており、
前記突起部は、互いに周方向に離間して配置されている、
上記(1)に記載のコネクタの防水構造。
(3)
前記一対の前記ハウジングのうちの一方の前記ハウジング(19)は、筒状に形成された他方の前記ハウジング(17)の内側に挿入され、
他方の前記ハウジングの内周面は、一方の前記ハウジングの前記外周面を押圧する少なくとも3個の突起部(123,125,127)を有しており、
前記突起部は、互いに周方向に離間して配置されている上記(1)に記載のコネクタの防水構造。
13 雄コネクタ
15 雌コネクタ
17 雄ハウジング(他方のハウジング)
19 雌ハウジング(一方のハウジング)
21 雄端子
23 雌端子
29 雄端子収容室(キャビティ)
47,77 開口
51 雄側環状部材
69 雌端子収容室(キャビティ)
81 雌側環状部材
109a~109d 角部
115,117,119,123,125,127 突起部
Claims (3)
- 互いに嵌合する一対のハウジングにそれぞれ端子が収容されるキャビティが形成されたコネクタの防水構造において、
前記一対のハウジングの各々は、
前記キャビティの開口を包囲する環状部材が嵌合方向に突出して形成され、
一方の前記環状部材は、
外周面が先端から奥に向かって径方向外側に広がるように傾斜して、嵌合時に前記外周面が他方の前記環状部材の内周面を押圧し、前記嵌合方向に直交する断面において、該環状部材の中心軸に対して互いに対称な位置にある複数の角部であって該複数の角部の前記外周面の曲率が他の部位の前記外周面の曲率よりも大きい複数の角部を有し、
前記角部の前記外周面の前記嵌合方向に対する傾斜角度が、他の部位の前記外周面の前記嵌合方向に対する傾斜角度よりも大きい、
コネクタの防水構造。 - 前記一対の前記ハウジングのうちの一方の前記ハウジングは、筒状に形成された他方の前記ハウジングの内側に挿入され、
一方の前記ハウジングの前記外周面は、他方の前記ハウジングの内周面を押圧する少なくとも3個の突起部を有しており、
前記突起部は、互いに周方向に離間して配置されている、
請求項1に記載のコネクタの防水構造。 - 前記一対の前記ハウジングのうちの一方の前記ハウジングは、筒状に形成された他方の前記ハウジングの内側に挿入され、
他方の前記ハウジングの内周面は、一方の前記ハウジングの前記外周面を押圧する少なくとも3個の突起部を有しており、
前記突起部は、互いに周方向に離間して配置されている請求項1に記載のコネクタの防水構造。
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BR112018013863-0A BR112018013863A2 (ja) | 2016-01-07 | 2016-12-28 | Waterproofing structure of a connector |
CN201680077687.6A CN108475877B (zh) | 2016-01-07 | 2016-12-28 | 连接器的防水结构 |
US16/068,664 US10333246B2 (en) | 2016-01-07 | 2016-12-28 | Waterproof structure of connector |
EP16883886.0A EP3402008B1 (en) | 2016-01-07 | 2016-12-28 | Waterproof structure of connector |
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JP (1) | JP6271604B2 (ja) |
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JP6739469B2 (ja) * | 2018-05-15 | 2020-08-12 | 三菱電機株式会社 | 防水型基板収納筐体 |
USD908089S1 (en) * | 2018-06-08 | 2021-01-19 | Norman R. Byrne | Electrical connector |
JP7363703B2 (ja) * | 2020-07-28 | 2023-10-18 | 住友電装株式会社 | コネクタ構造体 |
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JP2008016262A (ja) * | 2006-07-04 | 2008-01-24 | Sumitomo Wiring Syst Ltd | コネクタ |
WO2011076601A1 (en) * | 2009-12-24 | 2011-06-30 | Fci Automotive Holding | Connector assembly |
WO2015166928A1 (ja) * | 2014-04-28 | 2015-11-05 | 矢崎総業株式会社 | コネクタの防水構造 |
JP2016157594A (ja) * | 2015-02-25 | 2016-09-01 | 矢崎総業株式会社 | コネクタの嵌合構造 |
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JP2009110896A (ja) | 2007-11-01 | 2009-05-21 | Yazaki Corp | コネクタ |
CN101714720B (zh) | 2009-12-22 | 2012-02-01 | 胡连电子(南京)有限公司 | 电连接器及其密封圈 |
CN101882719B (zh) | 2010-06-02 | 2012-07-25 | 龙杰(苏州)精密工业有限公司 | 快接式户外防水电连接器 |
CN101950902B (zh) | 2010-09-13 | 2012-05-23 | 三门峡市成义电器有限公司 | 串并联转换接头 |
JP5729350B2 (ja) | 2012-04-25 | 2015-06-03 | 株式会社オートネットワーク技術研究所 | 防水コネクタ |
BR112018003427B1 (pt) * | 2015-08-31 | 2023-02-28 | Honda Motor Co., Ltd. | Estrutura impermeável para um conector |
-
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JP2002198127A (ja) * | 2000-12-25 | 2002-07-12 | Sumitomo Wiring Syst Ltd | コネクタ |
JP2008016262A (ja) * | 2006-07-04 | 2008-01-24 | Sumitomo Wiring Syst Ltd | コネクタ |
WO2011076601A1 (en) * | 2009-12-24 | 2011-06-30 | Fci Automotive Holding | Connector assembly |
WO2015166928A1 (ja) * | 2014-04-28 | 2015-11-05 | 矢崎総業株式会社 | コネクタの防水構造 |
JP2016157594A (ja) * | 2015-02-25 | 2016-09-01 | 矢崎総業株式会社 | コネクタの嵌合構造 |
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EP3402008B1 (en) | 2020-12-02 |
US20190020146A1 (en) | 2019-01-17 |
CN108475877A (zh) | 2018-08-31 |
US10333246B2 (en) | 2019-06-25 |
EP3402008A1 (en) | 2018-11-14 |
JP2017123275A (ja) | 2017-07-13 |
CN108475877B (zh) | 2020-05-22 |
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