Source: https://patents.google.com/patent/JP5740682B2/en
Timestamp: 2020-02-19 11:03:55
Document Index: 731747844

Matched Legal Cases: ['art 22', 'art 221', 'art 222', 'art 221', 'art 24', 'art 241', 'art 242', 'art 241', 'art 22', 'art 41', 'art 22', 'art 41', 'art 22', 'art 41', 'art 40', 'art 40']

JP5740682B2 - Waterproof connector - Google Patents
JP5740682B2
JP5740682B2 JP2011133067A JP2011133067A JP5740682B2 JP 5740682 B2 JP5740682 B2 JP 5740682B2 JP 2011133067 A JP2011133067 A JP 2011133067A JP 2011133067 A JP2011133067 A JP 2011133067A JP 5740682 B2 JP5740682 B2 JP 5740682B2
JP2011133067A
JP2013004254A (en
英貴 本目
2011-06-15 Application filed by タイコエレクトロニクスジャパン合同会社 filed Critical タイコエレクトロニクスジャパン合同会社
2011-06-15 Priority to JP2011133067A priority Critical patent/JP5740682B2/en
2013-01-07 Publication of JP2013004254A publication Critical patent/JP2013004254A/en
2015-06-24 Publication of JP5740682B2 publication Critical patent/JP5740682B2/en
The present invention relates to a waterproof connector for equipment provided in a place where water is applied.
Conventionally, as a waterproof connector used for an electronic device provided in a place where water may be splashed such as an engine room, a connector body is disposed in a receiving housing formed integrally with a case of the electronic device. Is known (Patent Document 1). In the waterproof connector of Patent Document 1, the mating connector is fitted to the connector body via the receiving housing. The waterproof connector of Patent Document 1 ensures waterproofness by providing a sealing material between the mating connector and the receiving housing.
Patent Document 2 discloses a waterproof connector in which a connector assembled to a circuit board is assembled to the case via a housing separate from the case of the electronic device.
JP-A-10-21988 JP 2009-9845 A
In the waterproof connector of Patent Document 1, the connector is assembled to a receiving housing integral with the case, and the mating connector is fitted into the receiving housing. Therefore, the continuity between the connector and the counterpart connector cannot be ensured unless the assembly tolerance allowed between the connector, the case (receiving housing) and the counterpart connector is considerably small. Therefore, since high dimensional accuracy and assembly accuracy are required for each of these members, the waterproof connector of Patent Document 1 causes manufacturing defects and cost increase.
In the waterproof connector of Patent Document 2, the connector is divided into a board connector assembled to the circuit board and an outer housing assembled to the case. The outer housing has a receiving portion in which a connector housing that holds contacts of the board connector is accommodated. The case, the housing, and the board connector are assembled in a state having a predetermined clearance between the connector housing and the receiving portion of the outer housing and between the outer housing and the case. For this reason, the assembly tolerance between the case and the connector can be absorbed by the assembly tolerance between the board connector and the housing and the assembly tolerance between the housing and the case.
However, in order to waterproof the inside of the case, a total of two sealing materials, a sealing material for sealing between the case and the outer housing, and a sealing material for sealing between the outer housing and the connector housing are necessary, And since it is necessary to fix with an equipment case with four bolts, cost becomes high.
The present invention has been made on the basis of the technical problems as described above, and it is an object of the present invention to provide a waterproof connector capable of reducing costs by absorbing assembly tolerances and reducing the number of parts for waterproofing. And
For this purpose, the waterproof connector of the present invention is a waterproof connector that is connected to a circuit board disposed in a case and is assembled to the case. The waterproof connector surrounds the connector body and the connector body and is fixed to the case. And an outer housing. The connector main body includes a contact responsible for electrical connection with the mating connector, and a main body housing having a main body receiving portion for receiving the mating connector and holding the contact. The outer housing accommodates the main body receiving portion of the connector main body, and receives the mating connector together with the main body receiving portion, and a guide corresponding to the case side guide provided on the case when assembled to the case. And. Furthermore, the case and the outer housing are sealed with a sealing material outside the outer receiving portion.
The mating connector is received in the outer receiving portion, and the mating connector is fitted into the outer receiving portion, so that the inner side of the outer receiving portion is sealed by the mating connector. For this reason, water does not enter into the case from between the outer receiving portion inside the outer receiving portion and the connector body. For this reason, it is not necessary to provide a sealing material for sealing between the outer receiving portion (housing) and the connector main body in order to ensure waterproofness in the case, and between the housing and the case outside the outer receiving portion. The waterproofness in the case can be secured simply by providing a sealing material for sealing. That is, since the sealing material for sealing between the outer receiving portion (housing) and the connector main body can be reduced, the cost can be reduced.
In addition, the connector is divided into the connector body and the housing, so that the assembly tolerance between the case and the outer housing and the assembly tolerance between the outer housing and the connector are absorbed by the assembly tolerance between the case and the outer housing. can do.
Furthermore, when the outer housing is assembled to the case, the outer housing is guided with respect to the case by the guide action of the case side guide and the guide of the outer housing, so that the workability during the assembly can be improved.
In the waterproof connector of the present invention, the guide is located on both sides between the outer receiving portion in the longitudinal direction of the outer housing, between the guide and the outer receiving portion, that are formed ribs in the longitudinal direction .
If heat is applied due to the usage environment or the like, the outer housing may be warped or deformed, and the sealing performance of the sealing material may be impaired. This deformation is particularly likely to occur in the longitudinal direction of the outer housing. Therefore, in the present invention, the guide provided in the outer housing, there is on both sides between the outer receiving portion in the longitudinal direction of the outer housing, along the longitudinal direction of the outer housing between the guide and the outer receiving portion by forming the ribs, it suppresses deformation to improve the rigidity against the longitudinal direction. By doing so, the waterproofness with respect to an environmental load can be obtained stably.
In addition, the outer housing may be elongated due to the outer housing being fixed to the case at two points on both sides of the outer receiving portion. In such a case, since the number of places to be fixed to the case is small, for example, compared with the case where the number of parts is fixed at four points, the cost can be reduced by reducing the number of parts, but the load for holding the sealing material is likely to be insufficient. For this reason, a rib can be formed in the outer housing to compensate for a decrease in sealing performance due to a small number of fixing points, thereby reducing costs while ensuring waterproofness.
The sealing surface of the case to which the sealing material is in close contact is preferably higher than the surrounding surface of the sealing surface.
Since there is a height difference between the sealing surface of the case and the surrounding surface, from the relatively low surrounding surface side (outside of the sealing material) inside the sealing material provided on the relatively high sealing surface Water can be prevented from entering, and water accumulated around the sealing material can be discharged to the surrounding surface side. Thereby, the waterproofness in a case can be improved.
The outer housing in the present invention can be fixed to the case via a fastening member that penetrates the insertion hole provided in the guide and presses the guide toward the case. By fastening the fastening member, typically a bolt, to the case at the position of the guide, a space for arranging the fastening member in the outer housing can be saved.
Here, it is preferable that the fastening member penetrates the insertion hole with a predetermined gap in the radial direction. When the collar is disposed in the guide insertion hole, a gap is provided between the collar and the fastening member. Then, the assembly tolerance between the outer housing and the case can be absorbed by this gap. As a result, it is possible to contribute to absorbing assembly tolerances between the case and the connector body.
As a more specific configuration of the guide in the present invention, the case side guide is a columnar body having a top surface, while the outer housing guide is a top wall that accommodates the case side guide and faces the top surface of the columnar body. It can be set as the cylindrical body which has. In this case, the fastening member passes through the collar disposed in the insertion hole provided in the upper wall of the cylindrical body, and is fastened to the case side guide from its top surface. In this configuration, it is preferable to form a notch communicating between the inside and the outside of the collar between the collar and the top surface, and to discharge water accumulated in the space formed by the collar and the top surface through this notch. . By doing so, when the case side guide and the collar are made of metal, corrosion due to water accumulated in the collar can be prevented.
Moreover, in this invention, it is preferable to provide the thermal reservoir which accumulates the heat given when soldering the contact hold | maintained at a connector main body to a circuit board. This is to quickly perform the soldering operation by accumulating heat due to preheating performed during soldering.
On the other hand, if excessive heat is accumulated during the soldering operation, peripheral members such as the housing of the connector main body and the circuit board may be deformed or damaged. Therefore, it is preferable to provide a discharge port for discharging air at the downstream end of the heat reservoir in the direction in which the heated air flows.
The contact can be bonded to the circuit board using a bonding material other than solder. Even when this bonding material is heated, the same effect as described above can be obtained.
According to the present invention, it is possible to reduce the cost by reducing the number of components while realizing both the assembly tolerance absorption between components and ensuring waterproofness. In addition, workability during assembly can be improved.
It is a perspective view of the waterproof connector which is an embodiment of the present invention (state where a female connector was connected). It is a longitudinal cross-sectional view of the waterproof connector of FIG. It is a perspective view of a connector main part. The connector main body is shown, (A) is a top view, (B) is a side view, (C) is a CC line arrow view of (A). It is a longitudinal cross-sectional view of the waterproof connector in the state where the other party connector is not connected. (A) is a top view of FIG. 5, (B) is a longitudinal cross-sectional view of an outer housing. It is a figure which shows the manufacture procedure of a waterproof connector. It is a figure which shows the manufacture procedure of a waterproof connector. It is a figure which shows the manufacture procedure of a waterproof connector. It is a figure which shows the manufacture procedure of a waterproof connector.
As shown in FIGS. 1 and 2, the waterproof connector 1 according to the present embodiment is used by being assembled to a case 11 of an electronic device and connected to the mating connector 3. The waterproof connector 1 includes a connector main body 2 that holds the contacts 21 and an outer housing 4 that fixes the connector main body 2 to the case 11. In the waterproof connector 1, the side connected to the mating connector 3 is defined as the front side, and the side on the opposite side from which the electric wire (not shown) is drawn is defined as the rear side. The same applies to the mating connector 3, and the side connected to the mating waterproof connector 1 is the front.
As shown in FIG. 2, the waterproof connector 1 is assembled to the case 11 of the electronic device 10. The case 11 includes a support plate 12 that supports a circuit board 15 that is electrically connected to the waterproof connector 1, and a metal cover housing 13 that is fixed to the support plate 12 and covers a part of the connector body 2 and the circuit board 15. And have.
The circuit board 15 has a bolt hole 151 (FIG. 7A) and a bolt hole 152 (FIG. 5) through which the bolt 27 for fixing the connector main body 2 is passed. Further, a boss 121 (FIG. 7A) to which the bolt 27 is fastened is formed on the support plate 12 corresponding to the bolt hole 151. Various electronic elements and wiring patterns (not shown) are mounted on the circuit board 15.
The cover housing 13 is formed with a rectangular connector arrangement window 131 in which the connector main body 2 is arranged. The connector main body 2 passes through the connector arrangement window 131, a part thereof is accommodated in the cover housing 13, and a part is exposed to the outside of the cover housing 13.
The cover housing 13 is formed with an annular sealing surface 13A (FIG. 7B) around the connector arrangement window 131. When the assembly of the waterproof connector 1 is completed, a seal member 14 described later is pressed against the seal surface 13A. The seal surface 13A is formed taller toward the front than the reference surface 13B around the seal surface 13A. That is, a height difference HL (FIG. 2) is provided between the seal surface 13A and the reference surface 13B.
A pair of bosses (case side guides) 132 protrude from the cover housing 13 on both sides of the connector arrangement window 131. The boss 132 is a columnar body having a top surface 132F. The boss 132 is formed with a bolt hole 132A for fastening a bolt (fastening member) 135 to be described later from the top surface 132F downward. The boss 132 is formed to be taller toward the front than the connector main body 2 arranged at a predetermined position of the cover housing 13. As will be described later in detail, the boss 132 functions as a guide for the outer housing 4 when the outer housing 4 is assembled to the cover housing 13.
In each figure, the sealing material 14 is shown in an uncompressed state so that the shape thereof can be understood. The same applies to the sealing material 36 described later.
The waterproof connector 1 includes a connector main body 2 and an outer housing 4.
As shown in FIGS. 3 and 4, the connector main body 2 includes a main body housing 20 and a plurality of male contacts 21 accommodated in the main body housing 20.
The main body housing 20 is an injection-molded product of insulating resin, and includes a main body receiving portion 22 that surrounds the front end side of the contact 21 and a tine plate 23 that positions the plurality of contacts 21. The main body housing 20 is also located on the rear end side of the main body receiving portion 22 and is a wall provided between the plurality of fixing portions 24 for fixing the connector main body 2 to the circuit board 15 and the adjacent fixing portions 24, 24. 25.
The main body receiving part 22 includes a holding part 221 (FIG. 4A) in which a holding hole 221A for holding the contact 21 to be penetrated is formed, and a hood part 222 that rises forward from the periphery of the holding part 221. have. The contact 21 is accommodated in the hood portion 222 at the front end side with respect to the holding portion, and the rear end side with respect to the holding portion is exposed inside the cover housing 13 of the case 11.
The main body receiving portion 22 is divided into two, and one main body receiving portion 22a and the other main body receiving portion 22b are connected by a connecting portion 26. The connecting portion 26 includes a protruding portion 26A that protrudes toward the rear end side, and a thread groove 26B that opens to the rear end surface is formed in the protruding portion 26A.
As shown in FIG. 2, when the connector main body 2 is disposed at a predetermined position on the cover housing 13, the main body receiving portion 22 protrudes outside the cover housing 13 through the connector arrangement window 131.
The tine plate 23 is formed with a plurality of positioning holes 231 (FIG. 3) through which the contacts 21 pass. The plurality of contacts 21 are aligned at predetermined positions connected to the circuit board 15 by passing through the corresponding positioning holes 231. The tine plate 23 is formed with a through hole 232 (FIG. 4C) through which the connecting portion 26 passes. The tine plate 23 is integrally provided with a locking projection 233 (FIG. 4C). By engaging the locking projection 242A of the standing portion 242 described later with the locking projection 233, The tine plate 23 is prevented from coming off.
The fixing part 24 has a joint part 241 along the circuit board 15 and a standing part 242 that rises forward from the joint part 241. A bolt hole 241A through which a bolt 27 described later passes is formed in the joint portion 241. On the inner surface of the standing portion 242, a locking protrusion 242 </ b> A that is engaged with the locking protrusion 233 of the tine plate 23 is formed.
The wall body 25 functions as a heat reservoir when soldering the connector body 2 described later. As shown in FIG. 4C, the wall body 25 is provided with a space S <b> 1 between the wall body 25 and the contacts 21 arranged at one end in the width direction of the tine plate 23. The wall body 25 is formed along the front-rear direction of the connector main body 2 from the position facing the joining portion 241 side of the fixing portion 24 to the rear end of the main body receiving portion 22. The wall body 25 and the contact 21 are separated by a plurality of fins 251 (interval S1). Inside the upper end of the wall body 25 (downstream end of the heat reservoir), an air outlet 252 inside the wall body 25 is formed.
The outer housing 4 is an injection-molded product of insulating resin. As shown in FIGS. 5 and 6, the outer housing 4 includes a plate-like cover portion 40 that covers a predetermined range of the case 11 (cover housing 13), and a cover portion 40. It has an outer receiving portion 41 that rises toward the front, and a pair of guide tubes (guides, cylindrical bodies) 42 that are located on both sides of the outer receiving portion 41.
The outer connector 41 is fitted with the mating connector 3. Further, when the outer housing 4 is assembled to the cover housing 13 (case 11), the outer receiving portion 41 accommodates the main body receiving portion 22. For this purpose, the outer receiving portion 41 includes a receiving cavity 46 that penetrates in the front-rear direction. The outer receiving portion 41 is divided into an outer receiving portion 41 a and an outer receiving portion 41 b corresponding to the main body receiving portion 22.
The accommodating cavity 46 is divided into a front end region 46A having a relatively small size in the cross section and a rear end region 46B having a relatively large size in the cross section, and a step 412 is disposed at the boundary. (FIG. 6B). The mating connector 3 fitted to the outer receiving portion 41 is accommodated from the front end region 46A to the rear end region 46B (specifically, from the front end of the front end region 46A to a position close to the rear end of the rear end region 46B). .
Further, the main body receiving portion 22 is accommodated in the rear end region 25B. The accommodated main body receiving portion 22 has an inner peripheral surface that is flush with the outer receiving portion 41, and the main body receiving portion 22 and the outer receiving portion 41 receive the mating connector 3.
Between the main body receiving portion 22 and the outer receiving portion 41, a predetermined clearance C1 (FIG. 2) is provided in the width direction, and a predetermined clearance C2 (FIG. 2) is provided in the front-rear direction. 20 and the outer housing 4 are formed.
The guide cylinder 42 is provided with an accommodation gap 421 for accommodating the boss 132 of the case 11 (cover housing 13). The guide cylinder 42 is opened at the rear end side of the accommodation gap 421, and the boss 132 is accommodated in the accommodation gap 421 through this opening. A fixing wall (upper wall) 422 formed with an insertion hole 423 through which a bolt 135 (convex portion) (FIG. 2) for fixing the outer housing 4 to the case 11 is formed is provided on the front end side of the housing space 421. . The fixed wall 422 faces the top surface 132F of the boss 132.
When the outer housing 4 is assembled to the case 11, the outer housing 4 and the case 11 (cover housing 13) are provided such that a gap S <b> 2 is provided between the guide tube 42 (the inner peripheral surface thereof) and the boss 132 (the outer peripheral surface thereof). Is formed.
A metal collar 47 is fixed inside the insertion hole 423 of the fixed wall 422 along the axial direction of the guide tube 42. In a state where the outer housing 4 is fixed to the case 11 with the bolts 135, the sizes of the collars 47 and the bolts 135 are such that a radial clearance S3 is provided between the bolts 135 passing through the collar 47 and the collars 47. It has been decided. As shown in FIG. 6B, a notch 471 is formed between the collar 47 and the top surface 132 </ b> F of the boss 132 to communicate the inside of the collar 47 with the outside. The notches 471 are arranged at predetermined intervals at three locations in the circumferential direction of the collar 47.
The outer receiving portions 41 and 41 and the guide cylinders 42 and 42 are arranged along the longitudinal direction of the outer housing 4 as shown in FIG. The outer receiving portions 41 and 41 and the guide tubes 42 and 42 are connected to each other by a cover portion 40.
An annular seal groove 45 is formed on the surface of the cover portion 40 facing the cover housing 13 so as to surround the outer receiving portion 41 in plan view. The seal material 14 is inserted into the seal groove 45. When the outer housing 4 is assembled to the cover housing 13, the sealing material 14 is brought into close contact with the sealing surface 13 </ b> A of the cover housing 13, so that the space between the cover portion 40 (outer housing 4) and the cover housing 13 (case 11) is sealed. Thus, the waterproof property in the cover housing 13 is ensured.
Ribs 43 and 44 extending along the longitudinal direction of the outer housing 4 are formed between the guide cylinder 42 and the outer receiving portion 41 adjacent to each other. The rib 44 also functions as a reinforcement surface of the outer receiving portion 41 and a stopper surface against which a part of the mating connector 3 comes into contact.
As shown in FIGS. 1 and 2, the mating connector 3 is electrically connected to a housing 31 corresponding to the main body receiving portion 22 and the outer receiving portion 41, and a contact 21 of the waterproof connector 1 held by the housing 31. A female contact 32, a retainer 33 for buffering the force when the connector is inserted and removed, and a lever engaging portion 34 provided around the housing 31 and engaged with the outer housing 4 by a lever operation. .
A contact cavity 35 into which the contact 21 of the connector main body 2 is inserted is formed in the housing 31. An electric wire (not shown) that is electrically connected to the contact 32 is inserted into the contact cavity 35.
The housing 31 is accommodated from the outer receiving portion 41 to the main body receiving portion 22 when the mating connector 3 and the waterproof connector 1 are connected. That is, the mating connector 3 is received by the outer receiving portion 41 and the main body receiving portion 22. On the outer periphery of the rear end side of the housing 31, a holding area 311 that holds the sealing material 36 is provided over the entire circumference, and the annular sealing material 36 is disposed in the holding area 311. When the mating connector 3 is received by the outer receiving portion 41 and the main body receiving portion 22, the mating connector 3 is fitted into the outer housing 4 by the sealing material 36 being brought into close contact with the inner peripheral surface of the outer receiving portion 41. As a result, the gap between the mating connector 3 and the outer housing 4 is sealed. Thereby, the penetration | invasion of the water from between the waterproof connector 1, the other party connector 3, and the outer housing 4 can be prevented.
A support protrusion 312 is formed on the outer periphery of the housing 31 and serves as a pivot shaft for the lever engaging portion 34.
The lever engaging portion 34 includes a locking projection 341 that rotates around a support projection 312 formed on the outer periphery of the housing 31 and engages with a locking projection 413 on the outer periphery of the outer receiving portion 41. As a result, the mating connector 3 and the outer housing 4 are prevented from coming off, and the mating connector 3 and the connector body 2 are prevented from coming off.
Hereinafter, the assembly procedure of the waterproof connector 1 will be described with reference to FIGS.
First, as shown in FIGS. 7A and 8A, the connector main body 2 and the circuit board 15 are assembled to the support plate 12. At this time, as shown in FIG. 8A, the screw 28 inserted into the bolt hole 152 of the circuit board 15 is fixed to the screw groove 26 </ b> B of the connecting portion 26 of the connector body 2. Further, as shown in FIG. 7A, a screw 27 penetrating the bolt hole 241A of the fixing portion 24 of the connector body 2 and the bolt hole 151 of the circuit board 15 is used as a screw hole formed in the boss 121 of the support plate 12. The connector body 2 and the circuit board 15 are fixed to the support plate 12 by screwing.
Next, the joining end 21 </ b> A (FIG. 8B) of the contact 21 of the connector main body 2 is soldered to the terminal 153 (FIG. 7A) of the circuit board 15. In this soldering, hot air is blown to heat the soldered joining end 21A and the circuit board 15 (preheating), thereby speeding up the soldering operation.
Next, as shown in FIGS. 7B and 8B, the cover housing 13 is installed. The main body receiving portion 22 is inserted into the connector arrangement window 131 while positioning the main body receiving portion 22 in the connector arrangement window 131. When the cover housing 13 is mounted at a predetermined position on the support plate 12 and fixed to the support plate 12 as shown in FIG. 2, the front end side of the connector body 2 is connected to the connector as shown in FIGS. 9 (A) and 10 (A). Projecting from the arrangement window 131 to the outside of the cover housing 13.
Further, the outer housing 4 is assembled to the cover housing 13. At this time, as shown in FIGS. 9A and 10A, the boss 132 of the cover housing 13 protrudes forward from the front end of the main body receiving portion 22. Therefore, the guide cylinder 42 can be put on the boss 132 with priority over other parts. Thus, the boss 132 and the guide tube 42 are guided to each other, so that the outer housing 4 can be easily assembled to the cover housing 13. Finally, as shown in FIGS. 9B and 10B, the outer housing 4 is pushed in until the main body receiving portion 22 is accommodated in the outer receiving portion 41. Then, predetermined clearances C1 and C2 (FIG. 2) are provided between the main body receiving portion 22 and the outer receiving portion 41.
Then, the bolt 135 is inserted into the collar 47 of the outer housing 4 and fastened to the boss 132, whereby the outer housing 4 is assembled to the cover housing 13 (case 11), and the waterproof connector 1 is completed.
According to the waterproof connector 1 described above, the following effects can be obtained.
In the waterproof connector 1, the outer housing 4 assembled to the case 11 is used, the collar 47, the gap S3 between the bolts 135, the gap 11 between the case 11 (boss 132), the outer housing 4 (guide cylinder 42), and the connector. Assembling tolerance between the case 11 (connector arrangement window 131) and the connector main body 2 (main body receiving portion 22) with the clearances C1 and C2 between the main body 2 (main body receiving portion 22) and the outer housing 4 (outer receiving portion 41). Can be absorbed. For this reason, even if the position of the connector placement window 131 and the connector main body 2 slightly deviates depending on the positional accuracy of the circuit board 15 on the support plate 12, the waterproof connector 1 can be manufactured without any trouble in assembly. In other words, the case 11, the outer housing 4, and the connector body 2 are not required to have such high dimensional accuracy and assembly accuracy.
Further, the mating connector 3 is fitted into the outer housing 4 (outer receiving portion 41), and the load applied to the mating connector 3 and the load applied to the outer housing 4 during assembly work do not act directly on the connector body 2. Therefore, it is possible to prevent the circuit board 15 and the circuit elements mounted on the circuit board 15 from being deformed or damaged by those loads.
The main body receiving portion 22 is accommodated in the outer receiving portion 41 of the outer housing 4, and the housing 31 of the mating connector 3 is fitted into the outer receiving portion 41 of the outer housing 4 (in a state where the housing 31 is sealed by the sealing material 14). Intrusion of water between the outer receiving portion 41 and the housing 31 can be prevented. And since the boundary part of the main body receiving part 22 and the outer receiving part 41 exists downstream from the sealing material 36 from the water intrusion path, a seal is provided between the main body receiving part 22 and the outer receiving part 41. Even if no material is provided, water does not enter between the main body receiving portion 22 and the outer receiving portion 41. As described above, the waterproof connector 1 can be waterproofed in the case 11 only by the sealing material 14 between the outer housing 4 and the cover housing 13. Therefore, since the sealing material between the main body receiving part 22 and the outer receiving part 41 which are normally required can be reduced, the cost can be reduced.
Since the sealing material 14 is covered by the cover portion 40 of the outer housing 4 and water does not arrive directly at the sealing material 14, high waterproofness can be ensured. Further, since the sealing member 14 is covered with the cover part 40, it is possible to prevent the sealing performance from being deteriorated due to dust or the like adhering to the boundary between the sealing member 14, the cover housing 13 and the cover part 40. Can be improved.
Similarly, since the sealing surface 13A on which the sealing material 14 is provided is higher than the reference surface 13B (the position in the vertical direction is high), water enters the sealing surface 13A from the reference surface 13B side (outside the sealing material 14). Can be prevented. Furthermore, water collected around the sealing material 14 is easily discharged toward the reference surface 13B. Also in these points, the waterproofness in the case 11 can be improved.
Further, when water accumulates inside the collar 47 (a concave portion formed by the collar 47 and the top surface 132F of the boss 132), the water can be drained from the notch 471 of the collar 47. Therefore, corrosion of the metal bolt 135, the boss 132, and the collar 47 can be prevented, and the fastening state between the bolt 135 and the boss 132 can be stably maintained.
In addition, since the outer housing 4 is reinforced by the ribs 43 and 44, it is possible to suppress deformation such as warpage that is likely to occur in the elongated outer housing 4. Thereby, since the sealing state between the outer housing 4 and the cover housing 13 can be maintained, the waterproofness with respect to an environmental load can be obtained stably.
When the outer housing 4 is assembled to the case 11, the outer housing 4 is guided with respect to the case 11 by the mutual guide action of the boss 132 of the case 11 and the guide cylinder 42 of the outer housing 4. Can be improved.
Further, since the wall end 25 of the connector body 2 covers the joining end 21A side of the contact 21, the heat due to preheating does not escape immediately after the preheating is stopped, and remains in the region where soldering is performed. For this reason, the subsequent soldering operation can be performed quickly.
Further, during soldering, air heated by soldering is rectified through the interval S1 partitioned by the fins 251 and efficiently discharged from the upper discharge port 252. By doing so, it can be prevented that excessive heat remains and the connector main body 2 and the circuit board 15 are deformed or damaged.
Although the present invention has been described based on the embodiment, the configuration described in the above embodiment can be selected or changed to another configuration as appropriate without departing from the gist of the present invention.
DESCRIPTION OF SYMBOLS 1 Waterproof connector 2 Connector main body 3 Opposite side connector 4 Outer housing 10 Electronic device 11 Case 12 Support plate 13 Cover housing 13A Seal surface 13B Reference surface (surrounding surface)
14 Sealing material 15 Circuit board 20 Main body housing 21 Contact 21A Joint end 22 Main body receiving portion 25 Wall body (functions as a heat reservoir)
31 Housing 32 Contact 33 Retainer 34 Lever engaging portion 40 Cover portion 41 Outer receiving portion 42 Guide cylinder (guide, cylindrical body)
43 Rib 44 Rib 45 Seal groove 46 Accommodating cavity 47 Collar 121 Boss 131 Connector placement window 132 Boss (case side guide, columnar body)
132A Bolt hole 132F Top surface 135 Bolt (fastening member)
252 Discharge port 421 Housing gap 422 Fixed wall (upper wall)
423 Insertion hole 471 Notch C1, C2 Clearance S3 Clearance HL Height difference
A waterproof connector connected to a circuit board disposed in a case and assembled to the case,
A connector body and an outer housing that surrounds the connector body and is fixed to the case;
The connector body is
A contact for electrical connection with the mating connector;
A main body housing for receiving the mating connector, and a main body housing for holding the contact;
An outer receiving portion for receiving the main body receiving portion of the connector body and receiving the mating connector together with the main body receiving portion;
A guide corresponding to a case side guide provided in the case when assembled to the case, and
Between the case and the outer housing is sealed with a sealing material outside the outer receiving portion ,
The guide is on both sides sandwiching the outer receiving portion in the longitudinal direction of the outer housing,
A rib is formed along the longitudinal direction between the guide and the outer receiving portion.
The sealing surface of the case to which the sealing material is in close contact is higher than the surrounding surface of the sealing surface,
The waterproof connector according to claim 1 .
The outer housing is fixed to the case through a fastening member that passes through an insertion hole provided in the guide and is fastened to the case.
The fastening member presses the guide toward the case and penetrates the insertion hole of the outer housing with a predetermined gap in the radial direction.
The waterproof connector according to claim 1 or 2 .
The case side guide is composed of a columnar body having a top surface,
The guide of the outer housing comprises a cylindrical body that has an upper wall facing the top surface of the columnar body and houses the case side guide,
The fastening member penetrates a collar disposed in the insertion hole provided in the upper wall, and is fastened to the columnar body from the top surface,
Between the collar and the top surface, a notch communicating the interior and exterior of the collar is formed,
The waterproof connector according to claim 3 .
A heat reservoir for accumulating heat applied when soldering the contact held by the connector body to the circuit board;
The waterproof connector according to any one of claims 1 to 4 .
The heat reservoir is
A discharge port for discharging the air at a downstream end in a direction in which the heated air flows;
The waterproof connector according to claim 5 .
JP2011133067A 2011-06-15 2011-06-15 Waterproof connector Expired - Fee Related JP5740682B2 (en)
JP2011133067A JP5740682B2 (en) 2011-06-15 2011-06-15 Waterproof connector
US13/524,429 US20120322285A1 (en) 2011-06-15 2012-06-15 Waterproof Connector
CN 201210197997 CN102832493A (en) 2011-06-15 2012-06-15 Waterproof connector
JP2013004254A JP2013004254A (en) 2013-01-07
JP5740682B2 true JP5740682B2 (en) 2015-06-24
ID=47335519
JP2011133067A Expired - Fee Related JP5740682B2 (en) 2011-06-15 2011-06-15 Waterproof connector
US (1) US20120322285A1 (en)
JP (1) JP5740682B2 (en)
CN (1) CN102832493A (en)
JP2017103011A (en) * 2015-11-30 2017-06-08 住友電装株式会社 connector
WO2017141670A1 (en) * 2016-02-18 2017-08-24 住友電装株式会社 Connector mounting structure
JPWO2017043219A1 (en) 2015-09-11 2018-05-10 日立オートモティブシステムズ株式会社 Electrical circuit device
JPH0864953A (en) * 1994-08-19 1996-03-08 Sony Corp Soldering method
JP4015590B2 (en) * 2003-06-04 2007-11-28 住友電装株式会社 Case seal structure and assembly method thereof
JP3953453B2 (en) * 2003-10-27 2007-08-08 Ｓｍｋ株式会社 Connector having floating structure
JP4285706B2 (en) * 2007-02-20 2009-06-24 日本航空電子工業株式会社 Connector and apparatus equipped with the same
JP2010140873A (en) * 2008-12-15 2010-06-24 Yazaki Corp Waterproofing structure of connector for equipment
2011-06-15 JP JP2011133067A patent/JP5740682B2/en not_active Expired - Fee Related
2012-06-15 CN CN 201210197997 patent/CN102832493A/en not_active Application Discontinuation
2012-06-15 US US13/524,429 patent/US20120322285A1/en not_active Abandoned
JP2013004254A (en) 2013-01-07
CN102832493A (en) 2012-12-19
US20120322285A1 (en) 2012-12-20
JP4986053B2 (en) 2012-07-25 Electrical junction box
Ref document number: 5740682