JPH10275655A - Cable side connector fixing mechanism - Google Patents

Abstract

PROBLEM TO BE SOLVED: To ensure fixture of a cable side connector to an equipment side connector with one touch without using a tool in a narrow space and prevent the influence of noise on electronic equipment. SOLUTION: A fixing mechanism has a metal chassis 11 arranged on the electronic equipment 1 side, a conductive plate spring 21 to thrust cable side connectors 18, 19 connected to equipment side connectors 8, 9 on the electronic equipment 1 side toward the metal chassis 11 side, and a fixing member 26 to thrust the conductive plate spring 21. An engagement part 15 is formed on the metal chassis 11 to engage the conductive plate spring 21 therewith, a locking part is provided on the conductive plate spring 21 to be engaged with the engagement part 15, an accepting member 12 is provided on the metal chassis 11 to accept the fixing member 26, and an insert hole is formed in the conductive plate spring 21 to insert the fixing member 26 therein.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention belongs to the technical field of cable connection between an electronic device such as a computer, a display, a printer and the like and the electronic device and its peripheral devices.
More specifically, the present invention relates to a cable-side connector fixing mechanism that can reliably fix a cable-side connector connected to a device-side connector.

[0002]

2. Description of the Related Art Conventionally, cables such as signal cables for connecting electronic devices such as a computer body, a display, and a printer to electronic devices and their peripheral devices have been connected to device-side connectors provided on the back of these electronic devices. On the other hand, it is performed by connecting a cable-side connector provided at the end of the signal cable.

Here, the device-side connector is a male connector having a rectangular cross section in which the contacts are arranged inside and arranged on the back of the electronic device. On the other hand, the cable-side connector is a female connector, and has a rectangular cross-section in which terminals that come into contact with the contacts are arranged inside, and has a size corresponding to the cable-side connector. Therefore, when the cable-side connector is inserted into the device-side connector, the connection between the electronic device and the electronic device, and the connection between the electronic device and its peripheral devices become possible.

[0004] However, if only the above connectors are inserted, the cable-side connector is moved from the device-side connector when electronic equipment such as a computer is moved or when a signal cable is moved due to an unexpected external force. It may come off.

For this reason, a screw member is provided integrally with the cable-side connector, a hexagon nut for screwing the screw member is provided near the device-side connector, and a member for preventing the cable-side connector from being loosened. For example, a mounting structure has been developed that can be added or mounted with a tool such as a screwdriver (see, for example, Japanese Utility Model Laid-Open No. 5-57780). In addition, a mounting structure has been developed in which a lock spring is provided in the vicinity of the device-side connector, a locking portion for locking the lock spring is provided on the cable-side connector, and these are hooked by fingers.

[0006]

The connection of a signal cable to an electronic device is usually performed on the back of the electronic device on which the device-side connector is provided. However, the connection is not always made in a wide space. Sometimes you need to make connections in tight spaces. In recent years, CR
The development of small and thin electronic devices, such as liquid crystal displays, has been remarkable in place of deep devices such as T-displays. In some cases, the two connectors are connected to each other inside the stand or the like.

However, in the conventional mounting structure, it is difficult to securely fix a screw member or the like to the cable-side connector in a narrow space with a tool such as a finger or a screwdriver. In particular, when the cable-side connector is fixed inside the electronic device, simple and reliable fixing is required due to the influence of assembly and the like, but the conventional mounting structure is often complicated. In addition, in the above-described conventional mounting structure, even when the device-side connectors are disposed adjacent to each other, there is an inconvenience that the devices must be fixed in a state of being connected one by one.

Further, it is known that the vicinity of the connection between the device-side connector and the cable-side connector is affected by noise generated from a drive circuit of the electronic device and noise from a signal cable. In addition, it is also affected by external high-frequency noise. However, in the above-mentioned conventional mounting structure,
No measures have been taken to prevent the effects on these noises.

Therefore, the present invention can securely fix a cable-side connector to a device-side connector without using a tool in a small space, and can prevent the influence of noise on electronic devices and the like. It is an object of the present invention to provide a cable-side connector fixing structure that can be used. Another object of the present invention is to provide a cable-side connector fixing structure that can securely fix each cable-side connector with one touch when the device-side connectors are arranged adjacent to each other. .

[0010]

According to a first aspect of the present invention, there is provided a cable-side connector fixing mechanism, comprising: a metal chassis disposed on an electronic device; An electrically-conductive leaf spring for pressing the cable-side connector connected to the device-side connector toward the metal chassis; an engagement portion for engaging the electrically-conductive leaf spring with the metal chassis; The conductive plate spring is provided with a locking portion for engaging with the engaging portion.

According to the present invention, after the cable-side connector is connected to the device-side connector, the engaging portion of the conductive leaf spring is engaged with the engaging portion on the electronic device side, thereby providing a conductive plate. Due to the spring, the connection state of the cable-side connector to the electronic device can be securely fixed with one touch without using a tool. According to the present invention, the conductive leaf spring allows the cable-side connector to be in close contact with the metal chassis while the cable-side connector is fixed.
The so-called grounding property is enhanced, and the influence of noise on electronic devices and the like can be prevented.

According to a second aspect of the present invention, there is provided a fixing mechanism for a cable-side connector according to the first aspect of the present invention, wherein the conductive leaf spring is provided on the metal chassis side. A fixing member for fixing is provided, and a receiving member for receiving the fixing member is provided on the metal chassis.

According to this invention, when the fixing member is received by the receiving portion, the cable-side connector is fixed with a sufficient pressing force by the conductive leaf spring, and the conductive leaf spring is pressed against the metal chassis. The adhesion is improved.

On the other hand, a cable connector fixing mechanism according to a third aspect of the present invention provides a metal chassis provided on an electronic device and a device connector on the electronic device. A conductive leaf spring that presses the connected cable-side connector against the metal chassis, and a fixing member that fixes the conductive leaf spring to the metal chassis. The metal chassis receives the fixing member. A receiving member is provided, and an insertion hole through which the fixing member is inserted is formed in the conductive leaf spring.

According to the present invention, after the cable-side connector is connected to the device-side connector, the fixing member is received by the receiving portion through the insertion hole. Is fixed with a sufficient pressing force. Also, according to the present invention, the conductive leaf spring allows the cable-side connector to be in close contact with the metal chassis in a fixed state, so that the so-called grounding property is enhanced, and the influence of noise on electronic devices and the like is reduced. Can be prevented.

According to a fourth aspect of the present invention, there is provided a fixing mechanism for a cable-side connector according to the first or third aspect of the present invention, wherein the conductive leaf spring contacts one side of the cable-side connector. A contact portion is formed on the metal chassis while a contact portion is formed on the metal chassis.

According to the present invention, the projecting portion of the conductive leaf spring abuts one side surface of the cable side connector, and the mounting portion of the metal chassis mounts the other side surface of the cable side connector. The fixing state of the connector is improved, and the adhesion of the conductive leaf spring to the metal chassis is improved.

Further, according to a fifth aspect of the present invention, there is provided a cable side connector fixing mechanism according to the first or third aspect, wherein the conductive leaf springs are arranged adjacent to each other. Characterized in that at least two cable-side connectors respectively connected to the device-side connectors are simultaneously pressed.

According to the present invention, at least two cable-side connectors connected to a plurality of adjacent device-side connectors on the electronic device side can be simultaneously fixed at a time.

[0020]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings. (First Embodiment) In this embodiment, as shown in FIG. 1, two lines of display signal cables 16 and 17 are simultaneously connected to a thin liquid crystal display 1 which is an electronic device.

First, the liquid crystal display 1 includes a base 2
The screen angle can be adjusted with respect to a stand 3 that is set up obliquely from the front. A cover member (not shown) is provided on the back of the stand portion 3. When the cover member is removed, the mounting member 4 and the metal chassis 11 are disposed below the mounting member 4. The two device-side connectors 8 and 9 are arranged adjacent to the mounting member 4, and the structure of the cable-side connector fixing mechanism is arranged on the metal chassis 11.

Here, the device-side connectors 8 and 9 are male-side connectors, each having a rectangular cross section in which the contacts are arranged inside and having a connection direction with the cable-side connectors 18 and 19. The mounting member 4 is disposed obliquely downward. On the other hand, the cable-side connectors 18 and 19 connected to the device-side connectors 8 and 9 are female-side connectors, each having a rectangular cross-section in which terminals for contacting the above-mentioned contacts are arranged. They are arranged at the ends of the cables 16 and 17.

Therefore, the cable side connectors 18, 1
When the connector 9 is inserted into the device-side connectors 8, 9, the liquid crystal display 1 can be connected to the computer main body and the like. As described above, the liquid crystal display 1 is capable of inputting two systems (D-SUB15 (mini) × 2 systems), and simultaneously connecting two computers to the liquid crystal display 1.
Are used by switching by the button operation of.

The device-side connectors 8 and 9 and the cable-side connectors 18 and 19 have a rectangular cross section. Examples of such connectors include "D-SUB".
And a connector called an "RGB connector". However, in the present embodiment, the standardized AC power plug, BNC connector, RS-232C connector, Centronics connector, DIN connector, SC
SI bus connector, GP-IB connector, non-standardized printed circuit board connector, general card edge connector, flat cable connector, coaxial cable connector, IC socket, FPC connector, terminal block connector, optical cable connector, etc. It is theoretically applicable to connection fixing.

Next, the fixing mechanism of the cable side connector is as follows.
As shown in FIG. 2, the configuration is provided on a metal chassis 11. That is, the main configuration of the present embodiment includes an engaging portion 15 formed on the metal chassis 11, a conductive leaf spring 21 having a locking portion 25 engaged with the engaging portion 15, The leaf spring 21 of the metal chassis 11
And a screw member 26 which is a fixing member fixed to the side.

First, the metal chassis 11 is a conductive member like the conductive leaf spring 21. A hole 10 for passing a power plug is formed below the metal chassis 11, and a position near the upper device-side connectors 8 and 9 is located above the metal chassis 11.
A mounting portion 13 swelling upward is formed. The mounting portion 13 is for mounting one side surface (other side surface) of each of the cable side connectors 18 and 19, and a flat portion corresponding to the one side surface is formed.

Each of the mounting portions 13 is provided with an engaging portion 1.
5 are drilled. The engaging portion 15 is engaged with the locking portion 25 of the conductive leaf spring 21 and is formed in the metal chassis 11 in a rectangular shape. In addition, the placing section 13
In the center of the mounting portion 13, a hexagon nut 12 which is a receiving member for receiving the screw member 26 is provided. The hexagon nut 12 has a groove formed therein and is screwed from the rear side of the metal chassis 11.

Next, as shown in FIGS. 2 and 3, the conductive leaf spring 21 pushes the cable connectors 18 and 19 connected to the equipment connectors 8 and 9 from the upper side to the metal chassis 11 side. It is fixed. The conductive leaf spring 21 of the present embodiment has a concave cross section and is sized to cover the two cable-side connectors 18 and 19. Also,
The conductive leaf spring 21 is formed with a screw hole 20 which is an insertion hole for inserting the screw member 26 in the center thereof, and is formed by bending side pieces 23 on both sides. A locking portion 25 is formed.

The engaging portion 25 is engaged with the engaging portion 15 of the metal chassis 11 and has a "C" -shaped cross section. 15 are formed. Accordingly, when the side piece 23 of the conductive leaf spring 21 is sandwiched between fingers, the locking portion 25 bends inward, and when the fingers are released, the conductive leaf spring 21 returns to the original concave shape due to the restoring force of the conductive leaf spring 21. . Such locking part 2
5 is not limited to two provided on the conductive leaf spring 21, but may be provided more than two. When a plurality of such members are provided, the engaging portions 15 of the metal chassis 11 are provided according to the number.

A screw member 26 as a fixing member is attached to the conductive leaf spring 21. The screw member 26 includes a pinch adjustment section 26a and a screw section 2
6b, and is screwed to the hexagon nut 12. That is, the screw member 26 is screwed into the hexagon nut 12 through the screw hole 20 using the E-shaped rings 27 and 28 and the nut 29. The adjustment of the pressing force against the conductive leaf spring 21 is performed by turning the knob adjusting portion 26a of the screw member 26 with a finger, thereby adjusting the pressing force.

Further, a protrusion 21a is formed on the conductive leaf spring 21. The protruding portion 21a is formed as a rib having a groove-like surface and a rear surface protruding toward the metal chassis 11 side. Therefore, both side surfaces of the cable side connectors 18 and 19 are preferably fixed by the mounting portion 13 of the metal chassis 11 and the protruding portion 21a, and the metal chassis 1 of the conductive leaf spring 21 is fixed.
1 is improved. The protruding portion 21a may be formed by cutting out the conductive leaf spring 21, or may be such as to fix the outer peripheral edges of the cable side connectors 18, 19, and the number thereof is not limited. I can't.

Contrary to the structure of the present embodiment, the engaging portion 25 of the conductive leaf spring 21 is formed in a hole shape, and the engaging portion 15 of the metal chassis 11 is formed as a "C" -shaped member. Also,
The cable-side connectors 18 and 19 can be securely fixed with one touch. Also, the device side connectors 8, 9
The hexagonal nuts 6, which are also found in the conventional mounting structure, are arranged on both sides of the above, but need not be used in the present embodiment.

Next, using the present embodiment,
The cable side connectors 18 and 19 are connected to the device side connectors 8 and 9.
Will be described. First, the stand 3
Then, the device side connectors 8 and 9 are exposed, and the cable side connectors 18 and 19 corresponding to the adjacent device side connectors 8 and 9 are connected.

In this case, since the metal chassis 11 is provided with the mounting portion 13 on which the other side surfaces of the cable-side connectors 18 and 19 are mounted, the cable-side connector 1 is provided.
It is preferable that the connectors be fitted together with one of the side faces 8, 19 being placed. Then, in the present embodiment, both connectors are temporarily fixed.

Then, as shown in FIG. 4, the conductive leaf spring 21 is held by the finger, and both side pieces 23, 23 of the conductive leaf spring 21 are held by the fingertip, while the two connectors are still connected to each other.
Is pressed lightly (in the direction of the arrow in FIG. 4), the locking portion 25 bends inward, so that the engaging portion 1 formed in the metal chassis 11 is bent.
5 can be inserted. Then, the locking portion 25 is inserted through the engaging portion 15, and when the finger is released, the locking portion 25 is locked to the engaging portion 15.

In this case, the locking portions 25 of the conductive leaf spring 21 can be locked from the locking portion 25 on one side or the locking portions 25 on both sides can be locked simultaneously. good. Also, since the locking portions 25 are bent slightly inward, the engaging portions 1 can be used without pressing the side pieces 23.
5 can be locked to the engaging portion 15 only.

Therefore, according to the present embodiment, both connectors can be easily fixed with one touch. When the locking portion 25 is locked to the engaging portion 15 in this manner, the projecting portion 21a of the conductive leaf spring 21 contacts one side surface of the cable-side connectors 18 and 19, so that the mounting portion 13 Together with the cable connector 18,
As a result, the adhesion of the conductive leaf spring 21 to the metal chassis 11 is improved.
Therefore, even if the signal cables 16 and 17 are displaced by an unexpected external force or the liquid crystal display 1 is tilted, the cable connectors 18 and 19 are not easily disconnected. On the other hand,
When detaching, the side plate portion 23 is gently pressed with fingers to lift the conductive leaf spring 21.
5 can be removed from the engaging portion 15.

In addition, since the conductive leaf spring 21 is in close contact with the metal chassis 11 at the connection point between the cable-side connectors 18 and 19 and the device-side connectors 8 and 9, the grounding property (earth) is increased, and The influence of noise on the display 1 and the like can be prevented. Also, external high-frequency noise is concentrated on the conductive leaf spring 21 to ground (earth).
can do. Further, the cable side connector 18,
Since the connection portion 19 is covered with the conductive leaf spring 21, the influence of noise can be prevented by the so-called shielding effect. In order to enhance the shielding effect, an electric insulating sheet or the like may be optionally interposed depending on the implementation.

By the way, in the present embodiment, even if the screw member 26 which is a fixing member is not necessarily used, the locking portion 25 is locked to the The connectors 18 and 19 can be securely fixed with one touch.

However, when the cable-side connectors 18 and 19 are fixed from above by the conductive leaf spring 21, a situation in which the cable-side connectors 18 and 19 expand outward depending on the type of the conductive leaf spring 21 may be considered. In particular, the cable-side connectors 18 and 1 are respectively connected to the device-side connectors 8 and 9 adjacent to the plurality of electronic devices.
When connecting and fixing 9 at the same time, a situation in which the bulges outward may be considered.

In such a case, when the knob adjusting portion 26a is turned by a finger and the screw member 26 as a fixing member is screwed into the hexagon nut 12 through the screw hole 20, the conductive leaf spring 21 is turned on. It is possible to prevent a situation that bulges outward. Further, since the adhesion of the conductive leaf spring 21 to the metal chassis 11 is improved, the grounding property is improved. Further, by turning the knob adjusting portion 26a with a finger, a sufficient pressing force can be applied to the cable side connectors 18 and 19, and fine adjustment of the pressing force can be performed.

Next, an application example of the first embodiment will be described. First, the fixed state of the conductive leaf spring 21 to the metal chassis 11 side is as shown in FIG.
A folded portion 22a having a fixing hole in the center is provided on both sides of the side piece 23 on one side of the conductive leaf spring 21, and the folded portion 22 is also provided near the mounting portion 13 of the metal chassis 11.
b, and the two folded portions 22a and 22b are fixed to one side by screwing or the like. With such a configuration, it is sufficient to lock only the locking portion 25 on the other side to the engaging portion 15, and the cable-side connectors 18 and 19 can be easily fixed by only locking on one side. . Further, the shape of the conductive leaf spring 21 is not limited to the above-described concave shape in cross section, and may be, for example, an arc shape in cross section. Further, it may have a shape as shown in FIG. 8 described later.

Second, the side piece 23 of the conductive leaf spring 21
Is not limited to the above-mentioned two, and may be provided more than two. For example, as shown in FIG. 6, a side piece 24 may be provided in addition to the both side pieces 23, 23 so as to surround the conductive leaf spring 21. When the side pieces 23 and 24 are formed on substantially the entire periphery of the conductive leaf spring 21 in this manner, the effect of preventing the cable-side connectors 18 and 19 from falling off is enhanced. Moreover, the internal space is electrically shielded from the outside, so that the shielding effect is enhanced.

Third, the signal cables 16 and 1 connected to the conductive leaf springs 21 and the cable-side connectors 18 and 19, respectively.
7 may be provided with a movement preventing unit. For example, as shown in FIGS. 6 and 7, a movement preventing member 21b for fixing the main body 5 provided between the signal cables 16, 17 and the cable-side connectors 18, 19 may be formed.
By forming the movement preventing member 21b in this way,
Signal cables 16, 17 and cable-side connectors 18, 1
9 can be prevented from moving.

(Second Embodiment) As shown in FIG. 8, a fixing mechanism for a cable-side connector according to the present embodiment includes a metal chassis 31 and cable-side connectors connected to equipment-side connectors 8 and 9. A conductive plate spring 32 for pressing the metal plates 18 and 19 toward the metal chassis 31 is provided, and a screw member 33 as a fixing member for applying a pressing force to the conductive plate spring 32.

The conductive leaf spring 32 is formed such that the central portion is curved in a convex shape, and the projecting portions 3 are provided on both sides of the convex central portion.
2a is formed. An application example similar to that of the first embodiment can be considered for the protruding portion 32a. The metal chassis 31 is provided with a hexagon nut 12 serving as a receiving member for receiving the screw member 33, and the conductive plate spring 32 is formed with a screw hole 20 through which the screw member 33 is inserted. As described above, in the present embodiment, neither the side piece 23 nor the locking portion 25 as in the first embodiment is formed. The components having the same configuration as the first embodiment, such as the mounting portion 13, are denoted by the same reference numerals, and redundant description will be omitted.

However, in this embodiment, the knob adjusting portion 33a of the center screw member 33 is turned by a finger and the screw member 33 is turned.
Is screwed into the hexagon nut 12 through the screw hole 20 which is an insertion hole, as in the first embodiment, a sufficient pressing force can be applied to the cable side connectors 18 and 19, and the device side The cable connectors 18 and 19 can be securely fixed to the connectors 8 and 9. In addition, the cable-side connectors 18 and 19 can be securely fixed at the convexly curved portions, and the adhesion to the metal chassis 11 can be improved.

As described above, in the present embodiment, the case where the cable-side connector is simultaneously connected and fixed to two adjacent device-side connectors on the electronic device side has been described. However, the present invention relates to one device-side connector and one It goes without saying that the present invention can be applied to the case where the cable side connector is connected and fixed.

[0049]

According to the first aspect of the present invention, there is provided a cable side connector fixing mechanism in which a conductive leaf spring is pressed against a metal chassis on an electronic device side, and a cable is formed between an engaging portion and a locking portion. Since the side connector is fixed, one-touch operation can be performed reliably. Therefore, even in a narrow space, it is possible to securely connect and fix even without using a tool, which is suitable for connecting and assembling the electronic device with the electronic device and its peripheral devices.

In the cable connector fixing mechanism according to the third aspect of the present invention, by pressing the fixing member through the insertion hole, the conductive leaf spring is pressed against the metal chassis side of the electronic device. Therefore, the cable-side connector can be securely connected and fixed without using a tool even in a narrow space.

Further, according to the present invention, the connection and fixing of at least two cable-side connectors respectively connected to a plurality of adjacent connectors on the electronic device side by a conductive leaf spring can be simultaneously performed at a time with one touch. Become.

In both of the above-mentioned inventions, the connection between the device-side connector and the cable-side connector is brought into close contact with the metal chassis and fixed by a conductive leaf spring. It has an effective effect on noise suppression against the like.

[0053]

[Brief description of the drawings]

FIG. 1 is a perspective view showing a fixing mechanism of a cable-side connector according to a first embodiment of the present invention.

FIG. 2 is an exploded perspective view showing a fixing mechanism of the cable-side connector according to the embodiment.

FIG. 3 is a perspective view showing a conductive leaf spring of the embodiment.

FIG. 4 is a cross-sectional view showing a fixed connection state of the cable-side connector according to the embodiment.

FIG. 5 is a perspective view showing an application example of the embodiment.

FIG. 6 is a side view showing an application example of the conductive leaf spring of the embodiment.

FIG. 7 is a perspective view showing an application example of the conductive leaf spring of the embodiment.

FIG. 8 is a perspective view showing a fixing mechanism of a cable-side connector according to a second embodiment of the present invention.

[Explanation of symbols]

1 electronic device (liquid crystal display), 8, 9 device side connector, 11, 31 metal chassis, 12 receiving member (hex nut), 13 mounting portion, 15 engaging portion, 1
6, 17 signal cable, 18, 19 cable side connector, 20 insertion hole (screw hole), 21, 32 conductive leaf spring, 21a, 32a protrusion, 25 locking part, 2
6, 33 fixing member (screw member), 26a, 33a knob adjusting portion

Claims (5)

[Claims] A metal chassis disposed on the electronic device side; and a conductive leaf spring for pressing a cable-side connector connected to the device-side connector on the electronic device side toward the metal chassis. A cable, wherein an engaging portion for engaging the conductive leaf spring is formed on a metal chassis, and a locking portion for engaging the engaging portion is provided on the conductive leaf spring. Side connector fixing mechanism. 2. A fixing member for fixing the conductive leaf spring to a metal chassis side is provided on the conductive leaf spring,
2. The fixing mechanism for a cable-side connector according to claim 1, wherein a receiving member for receiving the fixing member is provided on the metal chassis. 3. A metal chassis disposed on the electronic device side, a conductive leaf spring for pressing a cable side connector connected to the device side connector on the electronic device side toward the metal chassis side, and A fixing member for fixing the leaf spring to the metal chassis side, a receiving member for receiving the fixing member is provided on the metal chassis, and an insertion hole for inserting the fixing member into the conductive leaf spring. A fixing mechanism for a cable-side connector, characterized in that a connector is formed. 4. A protruding portion is formed on the conductive leaf spring in contact with one side surface of the cable side connector, and a mounting portion for mounting the other side surface of the cable side connector is formed on the metal chassis. 4. The fixing mechanism for a cable-side connector according to claim 1, wherein: 5. The apparatus according to claim 1, wherein the conductive leaf spring simultaneously presses at least two cable-side connectors respectively connected to a plurality of device-side connectors arranged adjacent to each other. 4. A fixing mechanism for a cable-side connector according to claim 3.