JPH08111270A - Connector mounting structure - Google Patents

Abstract

PURPOSE: To facilitate mounting and removal of a connector to/from a base board by allowing projections furnished on the connector to slide within grooves provided in a housing which surrounds the base board. CONSTITUTION: A housing 2 surrounding a base board is furnished with grooves 12 in the upper and the lower part. When an upper and a lower projection 13 furnished on a connector 8 having a contact pin 11 connected with a cable 9 along the grooves are slided, the pin 11 is located in the connection part of a circuit provided on the base board 1. Mounting and removal of the connector to/from the base board can be made easily by allowing these projections to slide within the grooves.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a connector mounting structure mounted on a substrate such as a print head substrate.

[0002]

2. Description of the Related Art A printer using an LED is one of recording devices such as office automation equipment. The structure of the head portion of the printer will be briefly described with reference to the cross-sectional view of FIG. 6. A chip 4 having an LED element is mounted on a substrate 1 having a circuit formed on the surface, and the LED element is a photosensitive drum 7. Many are arranged facing each other. The substrate 1 is surrounded by a resin housing 2, and the housing 2 has an opening at a portion facing the LED, and the self-occ lens array 5 is provided in this opening.
Is arranged. The light emitted by the LED is applied to the photosensitive drum 7 via the self-occ lens array 5,
Recording is performed by forming a latent image on the exposed photosensitive drum 7 and fixing it on the paper surface. A connector 8 for electrically connecting a circuit on the substrate 1 and a circuit of another device is mounted on the substrate 1 in the vicinity of an end portion in the longitudinal direction. In FIG. 6, reference numeral 3 is a housing that also serves as a heat dissipation plate, 6 is a lens cover, and 9 is a cable.

In this connector 8, as shown in FIG. 5, the board 1 is sandwiched by the two contact pins 11 fixed to the connector housing 10.
After being temporarily fixed by the elastic force of 1, the connector 8 is fixed to the substrate 1 with an adhesive so that the connector 8 does not fall out.

[0004]

However, when the connector 8 is fixed to the substrate 1 with an adhesive as described above, the adhesive is peeled off and removed when it is necessary to remove the connector 8 for parts replacement or the like. However, there is a problem that the work is troublesome and the workability is poor.

[0005]

SUMMARY OF THE INVENTION The present invention has been made in view of the above-mentioned problems, and provides a connector mounting structure which prevents the connector from falling off the substrate and facilitates mounting and removal of the connector on the substrate. The purpose is to provide.

[0006]

This object comprises a substrate, a housing surrounding the substrate, and a connector mounted on the substrate, wherein one of the connector and the housing has a protrusion and the other has a protrusion. A connecting groove is formed in a direction orthogonal to the longitudinal direction of a cable connected to the connector, and the contact pin of the connector is connected to a circuit formed on the substrate by the protrusion sliding in the groove. It is achieved by being located in the section.

[0007]

The connector can be mounted on the board only by engaging the protrusion or groove provided on the connector with the groove or protrusion provided on the housing, and sliding the connector. It can be removed simply by sliding it in the direction opposite to the sliding direction. In the connector mounted on the board, the mutual engagement of the protrusion or groove provided on the connector with the groove or protrusion provided on the housing functions as a stopper against the pulling force in the longitudinal direction of the cable. Even if a tensile force is applied to the substrate in the longitudinal direction, it does not come out of the substrate.

[0008]

Embodiments of the present invention will be described below with reference to the drawings. The same parts and common parts are denoted by the same reference numerals throughout the drawings.

FIGS. 1 and 2 show a connector mounting structure according to an embodiment of the present invention. FIG. 1 is a sectional view thereof and FIG. 2 is a perspective view thereof. Reference numeral 1 denotes a substrate on which a circuit is formed on the surface shown in FIG. 6 and a chip 4 having an LED element is mounted, and 2 denotes a resin housing which surrounds the substrate 1. In the connector 8, contact pins 11 are fixed to a base portion 10 of a connector housing, one of the contact pins 11 is connected to a cable 9, and the other is press-contacted to a circuit connecting portion on the board 1 and the cable 9 is It is pulled out from the back surface of the base portion 10 of the connector housing. Side 1 of connector housing
On the outer surface of No. 4 and the inner surface of the protrusion 15 respectively.
Are orthogonal to the longitudinal direction of the cable 9 and are formed with an appropriate length in the same direction as the longitudinal direction of the substrate 1. The housing 2 has a groove 12 that engages with the protrusion 13 of the connector housing on the surface facing the board 1 and the outer surface that surrounds the back side of the board 1.
Is formed from the end of the housing 2 in the longitudinal direction of the substrate 1 to a position facing the connection portion of the circuit on the substrate 1 in the same direction as the longitudinal direction of the substrate 1.

When the connector 8 is attached to the board 1,
As shown by the arrow in FIG. 2, the protrusions 13 formed on the outer surface of the projecting side 14 of the connector housing from the end portions of the substrate 1 and the housing 2 into the grooves 12 formed in the surface of the housing 2 facing the substrate 1, and Projector side of connector housing 15
The protrusions 13 formed on the inner surface of the housing 2 are engaged with the grooves 12 formed on the outer surface of the housing 2 that are wrapped around the back side of the substrate 1, and the board 1 is secured by the projecting sides 14 and 15 of the connector housing. The contact pin 11 of the connector 8 is brought into contact with the connecting portion of the circuit on the substrate 1 by sliding along the groove 12 so as to sandwich it. In this way, the connector 8
When attached to the substrate 1, the protrusion 13 of the connector 8 and the groove 1 of the housing 2 are coupled with the elastic force of the contact pin 11.
The engagement with the connector 2 is ensured, so that the connector 8 does not come out of the substrate 1 even if a tensile force acts on the cable 9 orthogonal to the engaging portion.

When the connector 8 is detached from the substrate 1, the connector 8 is slid in the opposite direction to the mounting, that is, the connector 8 is slid in the end direction of the substrate 1 and the housing 2. The connector 8 thus mounted on the board 1 can be easily removed by simply sliding it in the longitudinal direction of the board 1.

The locking projection 13 may be formed on the housing side and the groove 12 may be formed on the connector side, and the shapes of the projection 13 and the groove 12 can be designed appropriately. Further, when the connector 8 is in a position facing the circuit connecting portion on the substrate 1, the groove 1
Forming a concave portion having a stepped portion that fits with the protrusion 13 on the protrusion 2 and allowing the protrusion 13 to be fitted into the concave portion of this stepped portion by the elastic force of the contact pin 11, it also serves as a retainer in the sliding direction.

FIGS. 3 and 4 show a connector mounting structure according to another embodiment of the present invention. FIG. 3 is a sectional view thereof and FIG. 4 is a perspective view thereof. Reference numeral 1 denotes a substrate on which a circuit is formed on the surface shown in FIG. 6 and a chip 4 having an LED element is mounted, and 2 denotes a resin housing which surrounds the substrate 1. In the connector 8, contact pins 11 are fixed to a base portion 10 of a connector housing, one of the contact pins 11 is connected to a cable 9, and the other is press-contacted to a circuit connecting portion on the board 1 and the cable 9 is It is pulled out from the back surface of the base portion 10 of the connector housing. . Protrusions 13 are formed outward on both side surfaces of the projecting side 14 (or the base portion 10) of the connector housing. Housing 2
Is cut out at a portion facing the connection portion of the circuit on the substrate 1, and a folded portion is provided in the direction from the end portion at a right angle to the substrate 1 toward the substrate 1 on both side surfaces of the cut portion that face each other. And a groove 12 that engages with the protrusion 13 of the connector housing is formed.

When the connector 8 is attached to the board 1,
As shown by the arrow in FIG. 4, from the end portion of the housing 2 in the direction perpendicular to the substrate 1, the protrusions 13 formed on both side surfaces of the projecting side 14 of the connector housing are provided on both sides of the cut portion of the housing 2 facing each other. The grooves 12 formed on the side surfaces are engaged with each other, and are slid along the grooves 12 just before the folded portion of the grooves 12. At this time, the contact pin 11 of the connector 8 is in pressure contact with the circuit connecting portion on the substrate 1, and the projecting side 14 of the connector housing is brought into contact with the end of the folded portion of the groove 12 by the elastic force of the contact pin 11. When the connector 8 is attached to the substrate 1 in this way, the locking projection 13 of the connector 8 is combined with the elastic force of the contact pin 11.
Is reliably engaged with the groove 12 of the housing 2, so that even if a tensile force acts on the cable 9, the connector 8
Will not come out of the substrate 1.

When the connector 8 is detached from the board 1, the connector 8 is pushed toward the board 1 to remove the projection 13 of the connector housing from the folded portion of the groove 12, and the direction opposite to that at the time of mounting, that is, the housing 2 is perpendicular to the board 1. Slide toward the end of the direction to remove. Thus, the connector 8 attached to the board 1 can be easily removed only by sliding.

In each of the embodiments, the print head using the LED is taken as an example, but the print head is not limited to the LED. For example, a liquid crystal display or an LED having a substrate and a housing surrounding the substrate is used. It can also be used as a connector mounting structure for a display, an image sensor, and the like.

[0017]

As described above, according to the present invention, the connector can be attached / detached to / from the substrate only by sliding the connector, the work thereof is extremely easy, and the engagement of the projection and the groove allows the cable to be attached. It will be difficult to pull out due to pulling force.

[Brief description of drawings]

FIG. 1 is a sectional view showing a mounting structure of a connector according to an embodiment of the present invention.

FIG. 2 is a perspective view of the embodiment shown in FIG. 1 of the present invention.

FIG. 3 is a sectional view showing a connector mounting structure according to another embodiment of the present invention.

FIG. 4 is a perspective view of the embodiment shown in FIG. 3 of the present invention.

FIG. 5 is a cross-sectional view showing a conventional connector mounting structure.

FIG. 6 is a sectional view of a print head using LEDs.

[Explanation of symbols]

 1 board 2 housing 8 connector 9 cable 10 base of connector housing 11 contact pin 12 groove 13 protrusion 14 and 15 connector housing protrusion

Claims (1)

[Claims] 1. A board, a housing surrounding the board, and a connector mounted on the board, wherein a connector is provided on either one of the connector and the housing, and a groove for engaging the projection is connected to the connector on the other side. The cable is formed in a direction orthogonal to the longitudinal direction of the cable, and the contact pin of the connector is located at the connection portion of the circuit formed on the substrate by sliding the protrusion in the groove. Connector mounting structure characterized by.