JP2001283968A - Slip-off stopping structure for connector - Google Patents

Abstract

PROBLEM TO BE SOLVED: To solve the problem where a cable type remote control operation cannot be performed, because a housing of a connection cable of the cable type remote control unit case should be separated from a post through pulling the connection cable by a constructor in an attachment construction work of the remote control unit case, by improving the work which takes the connection cable to a place in which a main part of a remote controlled system is installed, while a lower case of the remote control unit remains fixed. SOLUTION: These are prepared on a wiring board, a rib in an upper case, a 1st penetration hole in the lower case, and a rib receptacle in the lower case are formed. A 2nd penetration hole, a connector, a connection cable that the connector concerned penetrates in the lower case, and a 3rd penetration hole which the rib formed in the upper case penetrates on a wiring board.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a device using a connection cord for electric wiring in a small electric or electronic device, and more particularly to a device penetrating through a lower case without being limited by the number of wires or the wire diameter. The present invention relates to a connector retaining structure that enables reliable operation.

[0002]

2. Description of the Related Art A conventional wired remote control device (hereinafter, referred to as a remote controller) for a small electric or electronic device, for example, a remote controller for a water heater for a bathroom, includes a case made of synthetic resin and a case made of a synthetic resin. Is composed of a wiring board on which electronic components are mounted. The main unit of the water heater and the remote controller are connected by about ten connection cords, and power supply to electronic components, setting of time and timer,
Control such as setting of temperature can be performed. The connection between the connection cord inside the remote controller and the wiring board is generally made using a connector.

FIG. 1 is a sectional view of a conventional remote control case.
In FIG. 7, a case 8 is formed by an upper case 12 and a lower case 14, and a wiring board 10 is mounted with electronic components mounted therein. Although not shown, the upper case 12 includes an operation unit for turning on / off the power, setting a temperature, setting a time, and the like, and a display unit such as an LED and an LCD for displaying a temperature, a time, and the like. The lower case 14 has a connection cord 20
A first through hole 16 is formed for inserting a through hole. Further, a second through hole 17 is formed in the wiring board 10 in the same direction as the first through hole 16.

Next, the connection between the case 8 and the connection cord 20 will be described. One end of connection cord 20 is connected to connector 30
Of the housing 32
Although not shown, the inside of the connection 32 is caulked with the lead wires and contacts of the connection cord 20 and inserted and fixed in the housing 32. The connection cord 20 is prepared as a cord assembly before assembling the case 8, and the other end of the connection cord 20 is connected to a main body of the water heater. On the other hand, although not shown, the post 34 serving as a convex portion of the connector 30 is integrally formed with a pin terminal serving as an electrical connection portion and a base, and is disposed on the component surface (upper case 12) side of the wiring board 10. You. The connection cord 20 prepared as the cord assembly is connected to the lower case 14 and the first and second
The housing 32 of the connection cord 20 is inserted through the through holes 16, 17, and inserted into the post 34. In the inserted state, although not shown, the wiring board 10 on which the electronic components are mounted is sandwiched between the upper case 12 and the lower case 14, and the wiring board 10 is fixed by screws or fitting.

[0005]

As described above, when the connection cord 20 housed in the case 8 of the remote controller is connected to the wiring board 10, the connection cord 20 is connected to the housing of the connector 30.
32 is inserted into the post 34. Remote control case 8
In the installation work and the like, the lower case 14 of the remote controller is fixed to a wall surface or the like in a bathroom, and the connection cord 20 is routed to a place where the water heater main body is installed. At the time of the work, the connection cord 20 is pulled, the housing 32 of the connection cord 20 is detached from the post 34, and there arises a problem that the remote control operation is not performed. As a countermeasure against the pulling of the connection cord 20, although not shown, a countermeasure has been taken by using a binding band or a cord bushing. Assembling man-hours and material costs.

[0006] The present invention has been made in view of the above-mentioned problems, and has a good work efficiency without adding new parts.
Provided is an inexpensive connector retaining structure.

[0007]

In a structure such as a wired remote control case, at least one or more ribs 26 are provided on the upper case 12, and at least one or more first through holes 16 are provided on the lower case 14; At least one or more rib receivers 22 are formed in the case 14. At least one on the wiring board
More than one connector 30 and housing of the connector 30
32. A connector retainer, comprising: a connection cord (32) inserted through the lower case (14); and a third through hole (18) through which a rib (26) formed in the upper case (12) in the wiring board (10) is inserted. Provide structure.

[0008]

FIG. 1 is a sectional view of a connector retaining structure according to a first embodiment of the present invention. In FIG. 1, a case 8 is formed by an upper case 12 and a lower case 14;
The wiring board 10 has electronic components mounted and housed in the case 8. Although not shown in the upper case 12,
An operation unit for turning on / off the power, setting a temperature, setting a time, and the like, and a display unit such as an LED and an LCD for displaying a temperature and a time are formed. The wiring board 10 has a second through hole 17 formed coaxially with the first through hole 16 of the lower case 14, and a second through hole 17 formed coaxially with the rib 26 of the upper case 12 of the wiring board 10. Three through holes 18 are formed. Ribs 26 are formed at arbitrary positions in the upper case 12, and the ribs 26 are inserted through the third through holes 18 of the wiring board 10 and are brought into contact with the lower case 14. Further, the rib 26 is formed on the side of the connection cord 20 of the housing 32 of the connector 30 and functions as a stopper for the connection cord 20. The lower case 14
Is a first through hole 16 through which the connection cord 20 is inserted.
In addition, a rib receiver 22 is formed on the outer periphery of the upper case 12 that contacts the rib 26. The same effect can be obtained even if the rib receiver 22 is not formed.

The mounting position of the rib 26 formed on the upper case 12 will be described. The first showing the mounting state of the rib
FIG. 5 shows a top view of the embodiment. In FIG.
Are brought into contact with both sides of the connector 30 on the insertion / extraction side of the housing 32. If there is a space near the center of the housing 32 as shown in FIG. 5, the ribs 26 can be further formed and reinforced. Therefore, the rib 26 is connected to the housing 32
The position may be any position as long as it is on the insertion / extraction side, and may be finally determined by the arrangement of the electronic components mounted on the wiring board. Ideally, the ribs 26 are formed at two or more places on both sides of the housing 32 on the insertion / extraction side, but the effect can be obtained even at one place. The shape of the rib 26 is shown in FIG. 6 as a top view of the second embodiment showing the mounting state of the rib. However, the rib 26 may be formed in a rectangular shape, and in FIG. Although illustrated in the form, the ribs 26 can be arranged in the insertion and removal direction of the housing 32 in a triangle, a quadrangle, a polygon, and the like, and combinations thereof.

Next, the connection between the case 8 and the connection cord 20 will be described. In FIG. 1, a housing 32 serving as a concave portion of the connector 30 is connected to one end of the connection cord 20, and the inside of the housing 32 is caulked with a lead wire and a contact of the connection cord 20 (not shown). , Is inserted and fixed in the housing 32. The connection cord 20 is prepared as a cord assembly before assembling the case 8, and the other end of the connection cord 20 is connected to the water heater main body. On the other hand, a post serving as a convex portion of the connector 30
Although not shown, the pin terminal 34 and the base, which serve as electrical connection portions, are integrally formed and arranged on the component surface (upper case 12) side of the wiring board 10. The connection cord 20 prepared as the cord assembly includes a lower case 14 and a wiring board 10.
The housing 32 of the connection cord 20 is inserted through the first and second through holes 16 and 17, and inserted into the post. In the inserted state, although not shown, the wiring board 10 on which the electronic components are mounted is attached to the upper case 12 and the lower case 14.
To fix the wiring board 10 by screws or fitting. By this fixation, the rib 26 of the upper case 12 abuts and is fixed to the rib receiver 22 of the lower case 14 to prevent the housing 32 from coming off.

Next, a modification of the above-described rib 26 of FIG. 1 will be described. FIG. 2 is a sectional view of a connector retaining structure according to a second embodiment of the present invention. In FIG. 2, a rib 28 for inserting the wiring board 10 into the lower case 14 is formed.
A rib receiver 24 is formed on the coaxial outer periphery of the ribs 12 concerned. This is obtained by turning the ribs 26 of the upper case 12 and the rib receiver 22 of the lower case 14 upside down in FIG. 1. When the case 8 is assembled, those that are difficult to assemble in FIG. 1 can be more easily assembled in FIG.

FIG. 3 is a sectional view of a connector retaining structure according to a third embodiment of the present invention. In FIG. 3, this is effective when the insertion hole cannot be formed in the wiring board 10 and the housing
32 is received only by the ribs 26 from the upper case 12.

FIG. 4 is a sectional view of a connector retaining structure according to a fourth embodiment of the present invention. In FIG. 4, the detachment of the housing 32 is held by the ribs 28 passing through the third through-holes 18 of the wiring board 10 from the lower case 14.
This is effective when the rib receiver 24 as shown in FIG. 2 cannot be formed.

Although the connector 30 is mounted on the upper case 12 side of the wiring board 10 this time, although not shown, even if the connector 30 is mounted on the lower case 14 side, the method described above with reference to FIGS. The ribs 26, 28 and the rib receivers 22, 24 of FIG.
Can be used in combination.

1 to 4, the case where the connector 30 and the connection cord 20 are provided at one place has been described.
30 and the connection cord 20 are often used. Even in the plurality of uses, by individually applying the embodiments of FIGS. 1 to 4, the connector 30 can be prevented from coming off. Further, in the embodiment, the second through hole 17 and the third through hole 18 are also described as having one place. However, depending on the position where the connector 30 is arranged on the wiring board 10, two or more of the second through hole 17 and the third through hole 18 may be provided. The same effect can be obtained by forming the second through hole 17 and the third through hole 18.

In the embodiments shown in FIGS. 1 to 4, a wired remote controller for a water heater for a bathroom has been described, but a remote controller for a wired air conditioner, an intercom, a telephone, a speaker for a stereo or personal computer, etc. And other devices that derive codes outside the case.

[0017]

According to the present invention, the ribs 26 and 28 are brought into contact with the housing 32 in response to the pulling of the connection cord 20, which was held only by the pull-out strength of the housing 32 and the post 34 of the conventional connector 30. Can be reinforced. Due to the reinforcement, even when the connection cord 20 is pulled in the mounting work of the remote control case 8 or the like, the ribs 26 and 28 function to prevent the housing 32 from coming off.
The operation trouble due to the omission can be eliminated. Also, as a countermeasure against the conventional pulling of the connection cord 20,
In the case of using the binding band and the cord bushing, the case became thicker, and the man-hour and material cost for assembling the binding band and the cord bushing were increased. It can be provided at low cost and can be designed without worrying about the thickness of the case.

[Brief description of the drawings]

FIG. 1 is a sectional view of a connector retaining structure according to a first embodiment of the present invention.

FIG. 2 is a sectional view of a connector retaining structure according to a second embodiment of the present invention;

FIG. 3 is a sectional view of a connector retaining structure according to a third embodiment of the present invention;

FIG. 4 is a sectional view of a connector retaining structure according to a fourth embodiment of the present invention;

FIG. 5 is a top view of the first embodiment showing a mounting state of a rib.

FIG. 6 is a top view of the second embodiment, showing a state where ribs are attached.

FIG. 7 is a sectional view of a conventional remote control case.

[Explanation of symbols]

 In the drawings, the same reference numerals indicate the same or corresponding parts. 8 Case 10 Wiring Board 12 Upper Case 14 Lower Case 16 First Through Hole 17 Second Through Hole 18 Third Through Hole 20 Connection Cord 22, 24 Rib Receiver 26, 28 Rib 30 Connector 32 Housing 34 Post

Claims (9)

[Claims] 1. An apparatus for providing a connector in a case and leading out a connection cord from the connector to the outside of the case, wherein the case has a rib and a through hole, and the rib of the connector is in a case assembled state. A connector retaining structure, which is arranged on the insertion / extraction direction side and is configured so that the housing does not come off from the post. 2. The connector retaining structure according to claim 1, wherein a case formed of an upper case and a lower case and a wiring board on which electronic components are mounted are housed in the case. 3. The upper case has at least one or more rib receivers, the lower case has at least one or more ribs, and the wiring board has a through hole through which the ribs formed in the lower case are inserted. 3. The connector retaining structure according to claim 2, wherein 4. The connector according to claim 2, wherein at least one or more ribs are formed in said upper case, and a through hole is formed in said wiring board through which the rib formed in said upper case is inserted. Construction. 5. The connector retaining structure according to claim 2, wherein at least one or more ribs are formed on said upper case. 6. The connector according to claim 2, wherein at least one or more ribs are formed in the lower case, and a through hole through which the rib formed in the lower case is inserted in the wiring board is formed. Construction. 7. The connector retaining structure according to claim 2, wherein at least one or more ribs are formed in the housing of the connector mounted on the wiring board, the ribs abutting in the insertion and removal direction of the housing. 8. The connector retaining structure according to claim 2, wherein at least one or more connectors mounted on the lower case side of the wiring board are arranged. 9. In a structure such as a wired remote control case,
At least one or more ribs are formed in the upper case, at least one or more through holes are formed in the lower case, and at least one or more rib receivers are formed in the lower case. A connector disconnection comprising: one or more connectors; a connection cord inserted through the lower case; and a through hole through which a rib formed in the upper case is inserted through the wiring board. Stop structure.