Hot-plug-proof D-SUB connector

Abstract

The D-SUB connector comprises a male seat and a female seat which are matched with each other, the male seat comprises a metal back plate, a connector plug cover, a slot, a contact pin and a hot-plug-proof structure, holes are formed in the middle and two sides of the metal back plate, the connector plug cover penetrates through the hole in the middle of the metal back plate, the slot, the contact pin and the hot-plug-proof structure are arranged on the connector, and an opening is formed in the front end of the connector plug cover. The open slot is located on the upper side of the connector plug cover, a plurality of groups of contact pins are distributed on the inner side of the opening of the connector plug cover, and the height of the plurality of groups of contact pins is lower than that of the opening of the connector plug cover; the hot plugging prevention structures are arranged on the inner side of the connector plugging cover, and each hot plugging prevention structure comprises an expansion sleeve and a sealing strip. According to the connector, the expansion sleeve, the sealing strip and the like arranged in the plug cover can be tightly contacted with the socket of the female seat during data transmission, so that data transmission errors and damage caused by hot plugging and interface loosening are avoided.

Description

Technical Field

[0001] The utility model relates to the field of signal transmission connectors, in particular to a D-SUB connector that is heat-resistant and pluggable. Background Art

[0002] D-SUB is an analog signal interface with different numbers of interfaces according to requirements. It is usually used in computer display cards, monitors and other devices to transmit analog signals. The most widely used D-SUB connector currently includes a male plug and a female socket, both of which are composed of terminals and front and back iron shells. The front iron shell of the male plug is equipped with pins, and the front iron shell of the female socket is filled with a rubber core, and a jack is opened in the rubber core.

[0003] At present, the D-SUB male and female sockets on the market are generally fastened with two bolts when mating. In actual operation, there are two main problems:

[0004] 1. Bolt tightening can only ensure that the D-SUB cable will not be broken free, but it cannot prevent it from loosening. In real life, the signal is often interrupted because the pins and sockets are loose and not tightly fitted together.

[0005] 2. Conventional D-SUB connectors can be plugged in and out when signal transmission is working normally, which is usually called hot plugging. However, improper operation of hot plugging may cause damage to the transmitted data and affect data transmission.

[0006] Based on the above background, the utility model proposes a heat-proof D-SUB connector, which can utilize the expansion sleeve, sealing strip, etc. arranged in the plug cover to keep in close contact with the female socket during data transmission, thereby avoiding data transmission errors and damage caused by hot plugging and loose interfaces. Utility Model Content

[0007] The utility model aims to provide a D-SUB connector with heat-proof plugging function, so as to solve the problems mentioned in the above background technology.

[0008] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a heat-proof D-SUB connector, the D-SUB connector includes a male socket and a female socket that cooperate with each other, wherein the male socket includes a metal back plate with openings in the middle and on both sides, a connector cover passing through the middle opening of the metal back plate, and a slot, a pin, and a heat-proof plug structure provided on the connector, the front end of the connector cover is open, the slot is located on the upper side of the connector cover, a plurality of pins are provided and distributed on the inner side of the connector cover opening, and the height of the plurality of pins is lower than the opening height of the connector cover; the heat-proof plug structure is provided in a plurality of groups and is arranged on the inner side of the connector cover, and the heat-proof plug structure includes an expansion sleeve and a sealing strip.

[0009] Preferably, the expansion sleeve is arc-shaped and can cooperate with the four corners inside the connector socket. Adjacent expansion sleeves are connected into a whole through a sealing strip.

[0010] Preferably, the sealing strip has a skeleton and an anti-debonding sleeve. The skeleton is made of metal wire, and the anti-debonding sleeve is wrapped outside the skeleton.

[0011] Preferably, the expansion sleeve is a metal expansion sleeve made of shape memory metal, and a rubber layer is arranged outside the metal expansion sleeve.

[0012] Preferably, the anti-debonding sleeve is flat cylindrical in shape, and a plurality of friction pieces with different lengths are arranged on the outer side of the anti-debonding sleeve. The friction pieces can be in close contact with the connector of the female seat when the female seat is inserted into the connector socket.

[0013] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0014] The connector of the present utility model can make close contact with the socket of the female seat by using the expansion sleeve, sealing strip, etc. arranged in the socket during data transmission. The principle is to utilize the thermal deformation of shape memory metal and the friction of the sealing strip to achieve the tight connection between the male seat and the female seat, and avoid data transmission errors and damages caused by hot plugging and loosening of the interface. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 is a schematic structural diagram of the present utility model;

[0016] Figure 2 is a schematic structural diagram of the anti-hot-plugging structure of the present utility model;

[0017] Figure 3 is a partial structural schematic diagram of the anti-hot-plugging structure of the present utility model.

[0018] In the figure: 1. Metal backplane; 2. Connector socket; 3. Groove; 4. Pin; 5. Anti-hot-plugging structure; 51. Expansion sleeve; 52. Sealing strip; 521. Skeleton; 522. Anti-debonding sleeve; 523. Friction piece. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0019] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0020] In the description of the present utility model, it should be noted that the orientation or positional relationship indicated by the terms "vertical", "upper", "lower", "horizontal", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present utility model.

[0021] In the description of the present utility model, it should also be noted that unless otherwise clearly specified and defined, the terms "set", "installed", "connected", "connected to" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0022] Embodiment 1: Please refer to Figure 1-2 , the present utility model provides a technical solution: a D-SUB connector with anti-heat-plugging function, the D-SUB connector includes a male seat and a female seat that cooperate with each other. The male seat includes a metal backplane 1 with openings in the middle and on both sides, a connector plug cover 2 passing through the opening in the middle of the metal backplane 1, a slot 3, pins 4, and an anti-heat-plugging structure 5 provided on the connector. The front end of the connector plug cover 2 is open, the slot 3 is located on the upper side of the connector plug cover 2, multiple groups of pins 4 are provided and are distributed inside the opening of the connector plug cover 2, and the height of multiple groups of pins 4 is lower than the opening height of the connector plug cover 2; multiple groups of the anti-heat-plugging structure 5 are provided and are arranged inside the connector plug cover 2, and the anti-heat-plugging structure 5 includes an expansion sleeve 51.

[0023] In this embodiment, the expansion sleeve 51 is in an arc shape and can cooperate with the four corners inside the connector plug cover 2.

[0024] In this embodiment, the expansion sleeve 51 is a metal expansion sleeve made of shape memory metal, a rubber layer is provided on the outer side of the expansion sleeve 51, the expansion sleeve 51 can contact the side of the joint at the front end of the female seat, and the expansion sleeve 51 can deform when the connector is heated and closely contact the joint at the front end of the female seat.

[0025] Embodiment 2: Please refer to Figure 1-3 , in this embodiment, the anti-heat-plugging structure 5 further includes a sealing strip 52, and adjacent two expansion sleeves 51 are connected into a whole through the sealing strip 52.

[0026] In this embodiment, the sealing strip 52 has a skeleton 521 and an anti-debonding sleeve 522, wherein the skeleton 521 is a metal wire, and the anti-debonding sleeve 522 is wrapped outside the skeleton 521.

[0027] In this embodiment, the anti-disengagement rubber sleeve 522 is in a flat cylindrical shape, and a number of friction pieces 523 with different lengths are provided on the outer side surface of the anti-disengagement rubber sleeve 522. The friction pieces 523 can be in close contact with the connector of the female seat when the female seat is inserted into the connector socket 2.

[0028] In this embodiment, the sealing strip 52 can be in close contact with the connector of the female seat through the friction pieces 523 thereon when the expansion sleeve 51 is thermally deformed, further improving the stability and anti-disengagement property of the insertion.

[0029] Working principle:

[0030] The above connector can use the expansion sleeve 51, the sealing strip 52, etc. provided in the socket to be in close contact with the female seat socket during data transmission. The principle is to utilize the thermal deformation of the shape memory metal and the contact friction of the sealing strip to achieve the tight connection between the male seat and the female seat, avoiding data transmission errors and damages caused by hot plugging and loosening of the interface.

[0031] Although the embodiments of the present invention have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A D-SUB connector that is heat-resistant and pluggable, comprising a male socket and a female socket that cooperate with each other, characterized in that: The male socket comprises a metal back plate (1) with openings in the middle and on both sides, a connector cover (2) passing through the middle opening of the metal back plate (1), and a slot (3), a plug pin (4), and an anti-heat plug structure (5) arranged on the connector. The front end of the connector cover (2) is open, the slot (3) is located on the upper side of the connector cover (2), a plurality of groups of plug pins (4) are arranged and distributed inside the opening of the connector cover (2), and the height of the plurality of groups of plug pins (4) is lower than the opening height of the connector cover (2); the anti-heat plug structure (5) comprises a plurality of groups and is arranged inside the connector cover (2), and the anti-heat plug structure (5) comprises an expansion sleeve (51) and a sealing strip (52).

2. The heat-resistant D-SUB connector according to claim 1, characterized in that: The expansion sleeve (51) is in an arc shape and can be matched with the four inner corners of the connector plug cover (2); two adjacent expansion sleeves (51) are connected as a whole via a sealing strip (52).

3. The heat-resistant D-SUB connector according to claim 1, characterized in that: The sealing strip (52) comprises a frame (521) and an anti-detachment rubber sleeve (522), wherein the frame (521) is a metal wire, and the anti-detachment rubber sleeve (522) is wrapped around the outside of the frame (521).

4. The heat-resistant D-SUB connector according to claim 2, characterized in that: The expansion sleeve (51) is a metal expansion sleeve made of memory metal.

5. The heat-resistant D-SUB connector according to claim 4, characterized in that: A rubber layer is arranged on the outside of the expansion sleeve (51), and the expansion sleeve (51) can contact the side edge of the joint at the front end of the female seat. When the connector is heated, the expansion sleeve (51) can be deformed and in close contact with the joint at the front end of the female seat.

6. The heat-resistant D-SUB connector according to claim 3, characterized in that: The anti-detachment rubber sleeve (522) is in the shape of a flat cylinder, and a plurality of friction plates (523) of different lengths are provided on the outer side of the anti-detachment rubber sleeve (522).

7. The heat-resistant D-SUB connector according to claim 6, characterized in that: The friction sheet (523) can be in close contact with the connector of the female socket when the female socket is inserted into the connector plug cover (2).

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