JP2007234404A - Connector removal prevention device and connector removal prevention parts - Google Patents

Abstract

An object of the present invention is to enhance the fitting force of a USB connector used in the USB interface standard and realize a plug removal prevention mechanism with a simple structure.
A device such as a Mylar is formed by utilizing a gap existing in a pin contact portion due to a dimensional difference between an external dimension of a plug side (male part) of a USB device 1 or the like and an inner diameter dimension of a device side receptacle 2 (female part). The sheet-like “prevention mechanism” 3 made of a material is folded and inserted into the receptacle 2 with the plug (USB device 1) sandwiched between them, thereby enhancing the fitting force. .
[Selection] Figure 1

Description

  The present invention relates to a connector removal prevention fixture, and more particularly to a connector removal prevention device and a connector removal prevention component for a USB interface.

  USB devices are becoming more widely used due to the convenience of hot plugging and ease of use, and the number of USB connectors supported by the device has also increased, allowing multiple USB devices to be connected at once. More and more cases are using personal computers (hereinafter referred to as PCs). However, since there is no mechanism for locking the connector in the USB connector standard, when a USB is used on the back side of a stationary PC, it is difficult to confirm the cause if a malfunction occurs due to a half disconnection of a USB device or the like. In the case of a mobile PC, there are cases in which it is accidentally removed by moving it during use. In addition, unexpected use of a wide variety of devices and multiple insertions / removals result in a weakening of the mating force / contact force, resulting in a problem of poor connection due to a half-out.

For this reason, conventionally, a proposal has been made to add a structure for preventing connection failure, operation failure and the like of the USB connector to the apparatus side and the device / cable side. For example, Patent Document 1 describes that the USB cable in the vicinity of the USB connector has a crank shape and is fixed by adding a USB cable fixing guide and a drop-off prevention mechanism. Is a large-scale one that requires some structural changes on the device side or cable side, and there is no simple removal prevention jig or the like to deal with.
Japanese Patent Laid-Open No. 2004-22469

  Even if the fitting force can be maintained at the beginning of use, it can be easily removed due to overuse, etc., or a USB device, etc. The purpose is to prevent malfunction due to prevention of connector disconnection or half disconnection by a mechanism.

  The connector disconnection prevention mechanism according to the present invention uses a gap existing in the pin contact portion due to the difference in the outer dimension of the plug (male part) of the USB device or the like and the inner diameter dimension of the device-side receptacle (female part). The sheet-like “prevention mechanism” made of such a material is folded and inserted into the receptacle side with a plug (USB device or the like) sandwiched therebetween.

  In the case of an installation type PC, it is possible to prevent the occurrence of malfunction due to a case in which the USB connector on the back is half-missed without being noticed, or in the case of a mobile type PC, it is accidentally disconnected by moving it during use. Moreover, even when the fitting force is weakened by unexpectedly using a wide variety of devices and multiple insertions / removals, it is possible to expect a removal prevention effect.

  Furthermore, it is not a method of providing a large-scale removal prevention mechanism on the equipment side using a removal prevention band or a removal prevention part, etc., so the development and parts costs can be kept small for the manufacturing vendor, and it can be easily handled by the user. It can be used widely as an external part, and has the advantage that it can be used effectively without any restrictions or restrictions.

  Sheet made of a material such as Mylar using the gap in the pin contact part due to the dimensional difference between the external dimensions of the plug side (male part) of the USB device etc. and the inner diameter dimension of the device side receptacle (female part) By inserting the plug (USB device, etc.) into the receptacle side while folding the “disengagement prevention mechanism” in the shape of the device, the mating force was increased.

(Example)
FIG. 1 is an external view of an embodiment of the present invention, and FIG. 2 is a side view of the embodiment of the present invention corresponding to FIG. In the figure, 1 is a USB device, 2 is a USB connector (device-side receptacle), and 3 is a removal prevention part. In the following drawings, the same reference numerals are given to the same components, and description thereof is omitted. In FIG. 2, 4 is a pressing pin on the receptacle side. In conventional use, the USB device 1 or a USB cable plug is inserted and connected to the USB connector 2 of the apparatus-side receptacle without the removal prevention part 3. However, since neither the plug of the USB connector nor the receptacle has a locking mechanism, if the elasticity of the spring of the pressing pin 4 on the receptacle side is weakened as it is, a contact failure may occur.

  FIG. 3 shows a part of the structural standard of the USB series “A” receptacle interface (Universal Serial Bus Specification Revision 2.0). According to FIG. 3, when the spring portion of the pressing pin 4 is removed, there is a gap of 0.64 mm physically even with only the upper and lower pin widths. Therefore, a "prevention part" made of a material such as Mylar is sandwiched with the plug, between the inner wall of the upper outer frame and the upper terminal (FG pin), and the inner wall and lower terminal of the lower outer frame (The signal pin) can be inserted between them, and the gap between the male / female is thereby reduced, so that the fitting force can be increased.

  FIG. 4 shows a top view of the pressing pin 4 of the USB connector (receptacle side) 2, and FIG. 5 shows a top view when the removal preventing part 3 is inserted into the USB connector (receptacle side) 2. In the figure, reference numeral 4 denotes the pressing pin previously shown in the side view of FIG. 2, and the tip portion of the removal preventing part 3 is inserted between the two left and right pressing pins 4 in the top view. However, there is a possibility that the looseness will be increased more and more by inserting the anti-detachment part 3, so that it is only in the center of the two springs so that it does not touch the two left and right pressing pins 4 and push up further. The shape is such that the removal prevention part 3 is inserted and cannot be pushed further.

  FIG. 6 is a developed view and a top view showing one embodiment of the missing prevention part of the present invention. FIG. 6B is a development view showing the drop prevention part 3 in a plan view, and FIG. 6A is a top view assembled with the USB device. In FIG. 5B, a folding position 5 indicated by a broken line in the center indicates that the folded position is used along this line, and the USB device is inserted into the USB device insertion slot 6 which is a space in the center due to the folding. 1, while the USB device 1 is sandwiched with the left and right rectangles of the insertion tip 7 of the anti-detachment part 3 being inserted, 0.64 mm of the contact pin portion of the USB connector (receptacle side) 2 on the apparatus side described above Insert into the gap. FIG. 5 shows a top view of the state in which the removal preventing part 3 is inserted between the two pressing pins 4, and FIG. 6A shows the USB device 1 into which the removal preventing part 3 is inserted. The top view in the state used by a set is shown.

  The material of the slip-off prevention part 3 is not particularly limited as long as it has a certain degree of hardness such as Mylar and ease of processing, but it is desirable to have insulation. FIG. 8 shows an embodiment of a rubber-type slip-out prevention part having an inclination in the thickness of the present invention, the tip end side to be inserted is inclined, and the rear part is thicker so that the fitting force becomes stronger. . As another example, two insertion parts having the shape shown in FIG. 8 may be inserted into the upper and lower gaps. FIG. 8A is a top view and FIG. 8B is a side view. Needless to say, the connector disconnection prevention mechanism and the disconnection prevention part can be applied to a connector fitted with only a contact force, other than the USB connector.

External view showing one embodiment of the present invention The side view which shows one Example of this invention The figure which shows the one part specification of the USB connector relevant to this invention Top view of USB receptacle-side pressing pin Top view with the anti-separation part inserted in the center of both pressing pins FIG. 3 is a development view and a top view showing an embodiment of the omission prevention part of the present invention. Example of rubber type slip-off prevention part having an inclination in thickness of the present invention Another embodiment of the omission prevention part of the present invention

Explanation of symbols

1 USB device 2 USB connector (receptacle side)
3 Preventing parts 4 Pressing pin 5 Folding position 6 USB device insertion slot 7 Insertion tip of the preventing part

Claims (5)

  The part inserted between the male connector pin and the female part of the connector is inserted into the gap of the pin contact part where the external shape of the male part of the insertion part contacts the female part inner diameter of the connector, and the connectors are fitted to each other. An apparatus for preventing a connector from coming off.   A connector preventing part which is inserted together with a male connector pin into a gap of a pin contact portion where an outer shape of a male portion of an insertion portion is brought into contact with an inner diameter of a female portion of a connector.   The connector according to claim 2, wherein the connector has a substantially circular space in a center portion in a planar state, and is configured to contact with both surfaces of the plug while passing through the connector plug through the center. Preventing parts from falling out.   The connector according to claim 1, wherein the connector is a USB connector.   The connector according to claim 2, wherein the connector is a USB connector.

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