JP3721887B2 - Electronic components and photomicrosensors - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to an electronic component and a photomicrosensor (photointerrupter), and more particularly to an electronic component with a connector that uses a connector for wiring connection and a photomicrosensor.
[0002]
[Prior art]
For electronic parts with connectors, a holder with a functional part is press-fitted into a mounting hole formed in the main body case, and is locked and connected to the main body case. The connector connecting part provided on the outer end of the holder is connected to the wiring The connector is inserted and locked from the same direction as the holder insertion direction.
[0003]
As shown in FIGS. 7 and 8, a conventional photomicrosensor with a connector, which is an example of this type of electronic component, has a holder 32 press-fitted into a mounting hole 31 formed in the main body case 30. The locking hole 33 is locked and connected by a locking claw 34 on the holder 32 side, and a group of terminals 35 protrudes from the outer end portion of the holder 32, and a connector connecting piece 36 is formed at the outer end portion of the main body case 30. When the connector 38 to which the cord 37 is connected is inserted into the terminal 35 group, the engagement protrusion 39 provided on the lower surface of the connector 38 is engaged with the locking hole 40 formed in the connector connection piece 36. It was.
[0004]
[Problems to be solved by the invention]
However, in the photomicrosensor having the above-described conventional structure, the connector connection piece 36 has a protruding shape that is relatively easy to deform. Therefore, the locking connection strength between the connector 38 and the connector connection piece 36 is not always sufficient. For this reason, even if the connector 38 is connected, if the cord 37 of the connector 38 is accidentally pulled when wiring other equipment, the connector 38 may be detached relatively easily.
[0005]
Further, in the conventional photomicrosensor, since the terminal 35 and the connector connecting piece 36 protrude from the main body case 30, not only the whole part is easily increased in size but also protrudes in a state where the connector 38 is removed. There is also a risk that the terminals 35 and the connector connecting pieces 36 may be inadvertently contacted and deformed or damaged.
[0006]
The present invention has been made paying attention to such points, and has as its main object to provide an electronic component with a connector that cannot be easily detached once the connector is connected, and further reduces the size of the electronic component. Another purpose is to make it excellent in durability.
[0007]
[Means for Solving the Problems]
In order to achieve the above object, the present invention is configured as follows.
[0008]
That is, the electronic component of the present invention is an electronic component having a main body case having an opening and a holder that is inserted into the main body case from the opening and fixed to the main body case. A holder locking claw for locking and fixing to the case; and a connector connecting portion that can be connected to a connector for wiring connection inserted from the same direction as the insertion direction of the holder into the main body case. has the deformation in the direction in which the engagement is released between the main body case is provided so as to be prevented by abutting on the connector when it is plugged connectors for wiring connected to the connector connecting portion When the connector insertion hole is formed in the connector connecting portion of the holder and the connector is inserted at a position facing the connector insertion hole A position the outer surface of the connector prevents the deformation in the unlocking direction is provided the holder locking pawl, in which engaged the holder locking claw to the locking hole formed in the main body casing from the inside.
[0009]
Here, the connector connecting portion refers to a portion having a shape and contact corresponding to the shape and contact of the connector for wiring connection, and the connector for wiring connection being inserted and removed.
[0010]
The same direction as the insertion direction includes a direction in which a force acts in a direction in which the holder is extracted from the main body case when the connector for wiring connection is removed from the connector connection portion. It includes the same direction or a slightly inclined direction.
[0011]
According to the present invention, once the connector for wiring connection is inserted and connected to the connector connecting portion of the holder, the deformation of the holder locking claw for locking and fixing the main body case and the holder in the unlocking direction is applied by the connector. When the connector is inserted and attached, the locking of the main body case and the holder is not released.
[0012]
Therefore, when the locking connection strength between the connector connecting portion of the holder and the connector is increased so that the connector is not inadvertently removed, if the connector is removed from the holder, the connector is strongly locked and connected to the connector. The holder also tends to be pulled out together with the connector with a large force. However, when the connector is inserted and mounted as described above, the locking of the main body case and the holder will not be released. Will be.
[0014]
According to the present invention, the outer surface of the connector itself becomes a part that prevents deformation of the holder locking claw that locks and fixes the main body case and the holder. Demonstrate the ability to prevent deformation in the direction. In addition, since a specially shaped deformation preventing portion is not required, the shape of the connector is simple, and the desired function can be obtained while reducing the mold cost.
[0015]
Moreover, in the preferable embodiment of this invention, the said connector connection part is provided with the connector latching mechanism which latches the connector for wiring connection.
[0016]
According to the present invention, the connection strength between the connector connecting portion of the holder and the connector can be increased, and when the connector is removed from the holder, the holder inserted into the main body case comes out of the main body case. There is no.
[0017]
As the connector locking mechanism, the holder is provided with a plate-like locking claw that engages with an engaging protrusion provided on the outer surface of the connector, and the locking claw is moved by elastic deformation in the width direction of the plate piece. You may make it latch on an engaging protrusion.
[0018]
According to this connector locking mechanism, a large force is required to deform the plate-like locking claw in the plate width direction, and the locking connection strength between the locking claw of the holder and the engagement protrusion of the connector is sufficient. It will be expensive. Therefore, even if the locking claw is thin and small, a sufficiently high locking connection strength can be ensured, and as a result, an increase in the size and thickness of the connector connecting portion provided with the locking claw can be suppressed. It is possible to obtain an electronic component having a high resistance to pulling out of the connector while reducing the overall size.
[0019]
In a preferred embodiment of the present invention, the connector connecting portion is provided in the main body case.
[0020]
According to the present invention, since the connector connecting portion is arranged inside the main body case, the terminal provided in the holder can be equipped without protruding from the main body case, and the terminal is protruded from the end of the case. Compared to this, it has become possible to reduce the overall length by reducing the overall length. In addition, there is no possibility of deforming or damaging the terminal, which is effective in constructing an electronic component having excellent maintainability.
[0021]
The photomicrosensor of the present invention is a photomicrosensor having a main body case having an opening, and a holder inserted into the main body case from the opening and fixed to the main body case. A holder locking claw for locking and fixing to the main body case; and a connector connecting portion that can be connected to a connector for wiring connection inserted from the same direction as the insertion direction of the holder into the main body case. The claw is provided so that deformation in a direction in which the locking with the main body case is released when a connector for wiring connection is inserted into the connector connecting portion is prevented by contacting the connector. The main body case has two protrusions extending in the insertion direction of the holder, the inside being a hollow connected to the inside of the case, and the holder A light emitting element and a light receiving element are provided at an end of the main body case in the insertion direction, the light emitting element is disposed in an internal cavity of one of the protrusions, and the light receiving element is disposed in an internal cavity of the other of the protrusions. Is.
[0022]
According to the present invention, it is possible to obtain a small-sized photomicrosensor excellent in practicality that can sufficiently increase the locking connection strength between the connector connecting portion of the holder and the connector and that does not inadvertently remove the connector. be able to.
[0023]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, an embodiment in which the present invention is applied to a groove-shaped photomicrosensor as an example of an electronic component with a connector will be described with reference to the drawings.
[0024]
1 is an exploded perspective view of the main body portion 1 of the photomicrosensor with a connector, FIG. 2 is a perspective view of the main body portion 1 of the photomicrosensor and the connector 2 removed, and FIG. FIG. 4 shows an overall perspective view of the sensor, and FIG. 4 shows a perspective view of the inside of the photomicrosensor equipped with the connector 2.
[0025]
As shown in FIG. 1, the main body portion 1 of the photomicrosensor includes a main body case 3 and a holder 5 that is inserted into and fixed to a mounting hole 4 opened at the rear end of the main body case 3.
[0026]
As shown in the cross-sectional plan view of FIG. 5, a detection case portion 3 a that is a pair of left and right protrusions having a space (cavity) continuous in the interior of the mounting hole 4 is formed in the front portion of the main body case 3. A detection groove 6 for passing the detection object is formed between the detection case portions 3a, and a pair of left and right mounting seats 3b are formed at the rear.
[0027]
A pair of left and right element mounting portions 5a project from the front portion of the holder 5 with a predetermined left and right spacing, and a substantially cylindrical connector connection portion 5b is provided at the rear, and the element mounting portion 5a and the connector connection portion 5b are provided. Are formed in a shape connected by a bridge portion 5c. The light emitting element 7 and the light receiving element 8 are provided along the outer surface of each element mounting portion 5a, and the printed board 9 is fitted and mounted across the element mounting portion 5a and the connector connecting portion 5b. The light receiving element 8 is soldered to a circuit pattern formed on the front and back surfaces of the printed circuit board 9 via lead terminals 7a and 8a.
[0028]
The cylindrical connector connection portion 5b is formed with a horizontally long rectangular connector insertion hole 10 opened rearward, and three connection terminals 11 project in parallel at the inner back of the connector insertion hole 10. In addition, the front end portions of the connection terminals 11 are soldered to a circuit pattern formed on the surface of the printed circuit board 9.
[0029]
Further, a first holder locking claw 12 for locking and connecting the holder 5 to the main body case 3 is provided in a cantilevered manner near the left and right ends of the connector connecting portion 5b, and the connector connecting portion 5b. One second holder latching claw 13 is provided in a cantilevered manner at the left and right central portion of the lower surface of the connector so as to face the connector insertion hole 10.
[0030]
The holder 5 configured as described above is press-fitted into the mounting hole 4 of the main body case 3 from behind so that the connector mounting portion 5b is fitted into the mounting hole 4 so as to be completely immersed. In this mounted state, the left and right element mounting portions 5a including the light emitting element 7 and the light receiving element 8 are inserted into the internal space of the detection case portion 3a, and the detection light emitted from the light emitting elements 7 is transmitted to each element mounting portion 5a. Are assembled so as to reach the light receiving element 8 through the slits 15 formed in the small holes 14 and the opposing inner side walls of the respective detection case portions 3a.
[0031]
When the holder 5 is inserted into the mounting hole 4 of the main body case 3, the left and right first holder locking claws 12 are locked from the inside into the locking holes 16 formed on the left and right of the main body case 3. At the same time, the second holder locking claw 13 below the center is locked from the inside into a locking hole 17 formed in the rear portion of the lower wall of the main body case 3, so that the holder 5 is fixed to the main body case 3. It is locked and fixed to. In this embodiment, the holder 5 is locked to the main body case 3 not only by the second holder locking claw 13 which is prevented from being deformed by the connector 2 as described later, but also by another first holder locking claw 12. Since they are connected, the holder 5 can be reliably connected to the main body case 3 by a plurality of locking connections. The connector 2 is formed in a flat square block shape that fits tightly into the connector insertion hole 10 of the connector mounting portion 5b in the holder 5, and a pin-like connection inside the connector insertion hole 10 is provided in the connector. Three contacts (not shown) that are brought into contact with the terminal 11 are incorporated, and each contact is connected to the lead wire 18 a of the cord 18.
[0032]
In addition, a pair of left and right engaging projections 19 that cannot be deformed are provided on the upper side surface of the connector 2, and the upper wall of the connector connecting portion 5 b of the holder 5 is elastically attached to the engaging projection 19 as a connector locking mechanism. A locking claw 20 to be engaged is provided. This locking claw 20 is formed in a plate shape having a large left and right width compared to the upper and lower thickness, and elastically deforms laterally outward with the press-fitting of the engaging protrusion 19, so that the engaging protrusion 19 is laterally outward. It is configured to engage.
[0033]
Further, the lower side surface of the connector 2 is formed flat, and when the connector 2 is inserted into the connector insertion hole 10 of the connector connecting portion 5b and attached, the lower side surface is fitted into the second holder locking claw 13 of the holder 5. The second holder locking claw 13 functions as a deformation restricting portion s that prevents the second holder locking claw 13 from deforming in the connector insertion hole 10, that is, in the locking release direction with respect to the locking hole 17. It is configured as follows.
[0034]
Therefore, in the state where the connector 2 is inserted and mounted, the locking connection between the main body case 3 and the holder 5 is not released, and the locking connection strength between the connector connecting portion 5b of the holder 5 and the connector 2 is increased, When the connector 2 is prevented from being removed carelessly, when the connector 2 is removed from the holder 5, the holder 5 that is strongly locked and connected to the connector 2 also tends to be extracted together with the connector 2 with a large force. However, in the state where the connector 2 is inserted and mounted as described above, the locking connection between the main body case 3 and the holder 5 is not released, so only the connector 2 is removed.
[0035]
The present invention can also be implemented in the following forms.
[0036]
(1) The first holder locking claw 12 can be omitted, and the holder 5 can be locked and connected to the main body case 3 only by the second holder locking claw 13. In this case, a plurality of holder locking claws 13 may be used.
[0037]
(2) The structure of the locking connection between the connector 2 and the holder 5 is not limited to the above-mentioned form, and a known locking structure may be used with a high locking connection strength.
[0038]
(3) The present invention can also be applied to a reflective photomicrosensor.
[0039]
(4) The present invention can be applied not only to photomicrosensors but also to various electronic components with connectors such as in-vehicle relays.
[0040]
【The invention's effect】
As is clear from the above description, according to the present invention, since the holder is not pulled out together with the connector, the locking connection strength between the connector connecting portion of the holder and the connector can be sufficiently increased. It has become easy to construct an electronic component with a connector and a photomicrosensor that will not be inadvertently removed.
[Brief description of the drawings]
FIG. 1 is an exploded perspective view of a main part of a photomicrosensor.
FIG. 2 is a perspective view of a photomicrosensor main body portion and a disconnected connector.
FIG. 3 is an overall perspective view of a photomicrosensor equipped with a connector.
FIG. 4 is a perspective view of the inside of a photomicrosensor equipped with a connector.
FIG. 5 is a cross-sectional plan view of a photomicrosensor equipped with a connector.
FIG. 6 is a vertical side view of a photomicrosensor equipped with a connector.
FIG. 7 is a perspective view of a main part of a conventional photomicrosensor and a connector removed.
FIG. 8 is a perspective view of a conventional photomicrosensor equipped with a connector.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Main body part 2 Connector 3 Main body case 5 Holder 5b Connector connection part 7 Light emitting element 8 Light receiving element 12 1st holder latching claw 13 2nd holder latching claw s Deformation | regulation regulation part

Claims (4)

An electronic component having a main body case having an opening, and a holder inserted into the main body case from the opening and fixed to the main body case,
The holder includes a holder locking claw for locking and fixing the holder to the main body case, and a connector connection portion that can be connected to a connector for wiring connection inserted from the same direction as the insertion direction of the holder into the main body case. Prepared,
The holder locking claw is prevented from coming into contact with the connector in a direction in which locking with the main body case is released when a connector for wiring connection is inserted into the connector connecting portion. is provided so as to,
A connector insertion hole is formed in the connector connecting portion of the holder, and the position facing the connector insertion hole is such that the outer surface of the connector prevents deformation in the unlocking direction when the connector is inserted. An electronic component provided with a holder locking claw and locking the holder locking claw from the inside in a locking hole formed in the main body case . The electronic connector according to claim 1, wherein the connector connecting portion includes a connector locking mechanism that locks a connector for wiring connection. Electronic component according to the connector connecting portion, to claim 1 or 2 is provided by positioning within said body case. A photomicrosensor having a main body case having an opening, and a holder inserted into the main body case from the opening and fixed to the main body case,
The holder includes a holder locking claw for locking and fixing the holder to the main body case, and a connector connection portion that can be connected to a connector for wiring connection inserted from the same direction as the insertion direction of the holder into the main body case. Prepared,
The holder locking claw is prevented from coming into contact with the connector in a direction in which locking with the main body case is released when a connector for wiring connection is inserted into the connector connecting portion. Provided as
The main body case has two protrusions extending in the insertion direction of the holder, the inside being a cavity connected to the inside of the case,
The holder includes a light emitting element and a light receiving element at an end in an insertion direction to the main body case,
The light emitting element is disposed in an internal cavity of one of the protrusions,
The photomicrosensor, wherein the light receiving element is disposed in an internal cavity of the other protrusion.

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