Electric power connector easy to plug and unplug

Abstract

The utility model discloses an electric power connector easy to plug and unplug, which comprises a first connector and a second connector which are in butt joint with each other, and an annular plug board is coaxially arranged on one side surface, close to the second connector, of the first connector. One side surface, close to the first connector, of the second connector is coaxially provided with an annular plug-in groove for accommodating the annular plug-in plate, and the annular plug-in plate and the annular plug-in groove are connected through a clamping piece. The first connector and the second connector are connected in an inserted mode through the clamping piece, connection between the first connector and the second connector is achieved through clamping between the clamping head and the clamping head containing opening, and the clamping head is difficult to slide out of the clamping head containing opening through long-time vibration under the action of the reset spring. Therefore, an existing nut connecting mode is replaced, the problem that the nut rotates and is separated from the connector under long-time working vibration is solved, and the failure rate of equipment is reduced.

Description

Technical Field

[0001] The utility model belongs to the technical field of connectors, and in particular relates to an easy-to-plug power connector. Background Art

[0002] Power connectors refer to electrical connectors, that is, devices that connect two active devices to transmit current or signals. The locomotives are running day after day, and according to the current existing technology, it is still impossible to avoid the vibration of the locomotives. The locomotives are always accompanied by vibrations when running on the track. In addition, when the connectors follow the locomotive vibrations, external dust is easy to enter the connectors and adhere to the pins and sockets. According to this characteristic of the locomotives, the connectors for locomotives need to have good vibration reduction and sealing properties.

[0003] Most of the existing railway locomotive connectors use nuts to fix the plug and the socket to prevent the plug and the socket from separating during use. However, this method is prone to self-rotation under long-term working vibration in some situations, which may cause the nut to detach over a long period of time, resulting in separation between the plug and the socket during use, which may easily cause equipment failure.

[0004] Based on the deficiencies in the prior art, the utility model discloses an easy-to-plug power connector, which replaces the existing nut connection method by plugging a first connector into a second connector through a snap-on component, thereby avoiding the problem of the nut rotating and the connector separating under long-term working vibration, and reducing the failure rate of the equipment. Utility Model Content

[0005] In view of the shortcomings of the prior art, the purpose of the utility model is to provide an easy-to-plug power connector to solve the technical problems raised in the background technology.

[0006] The utility model provides the following technical solutions:

[0007] A pluggable power connector, comprising a first connector and a second connector butted against each other, a ring-shaped plug plate coaxially arranged on a side surface of the first connector close to the second connector, a ring-shaped plug groove coaxially arranged on a side surface of the second connector close to the first connector for receiving the ring-shaped plug plate, the ring-shaped plug plate and the ring-shaped plug groove are connected by a clamping member, the clamping member comprises a slide groove arranged on the outer side surface of the ring-shaped plug plate, the length direction of the slide groove intersects and is arranged perpendicular to the axis of the ring-shaped plug plate, a clamping joint is arranged in the slide groove, and a side surface of the second connector is provided with a groove for receiving A card joint accommodating opening for accommodating the card joint, a return spring is also arranged between the bottom of the slide groove and the card joint; a plurality of sliders are arranged at one end of the card joint close to the bottom of the slide groove, and a slide rail compatible with the slider is arranged on the inner wall of the slide groove along its length direction; the card joint has a rounded transition at one end away from the bottom of the slide groove and close to the second connecting head; a plurality of card connectors are arranged, and the plurality of card connectors are evenly arranged at equal intervals along the circumference of the annular plug plate; the number of the card joint accommodating openings is the same as the number of the card connectors, and the card joint accommodating openings are arranged one-to-one with the card joints.

[0008] Preferably, an annular rubber pad is provided at the bottom of the annular plug-in groove.

[0009] Preferably, a first protective cover and a second protective cover are respectively threadedly connected on the side surfaces of the first connector and the second connector that are away from each other, and the first protective cover and the second protective cover are respectively provided with a plurality of through holes for the wires to pass through.

[0010] Preferably, the inner side wall of the annular plug plate is provided with a guide groove along its axial direction, and a plurality of the guide grooves are provided, and the plurality of the guide grooves are evenly arranged along the circumference of the inner wall of the annular plug plate; a plurality of guide strips matching the guide grooves are provided on the inner wall of the inner ring of the annular plug groove, and the length direction of the guide strips is provided along the length direction of the guide groove, and the plurality of the guide strips are evenly arranged along the circumference of the inner side wall of the annular plug groove.

[0011] Compared with the prior art, the utility model has the following beneficial effects:

[0012] The utility model discloses an easy-to-plug power connector, which connects the first connector and the second connector by plugging them together through a clamping piece, and the clamping joint and the clamping joint accommodating opening realize the connection between the first connector and the second connector. Moreover, due to the action of a reset spring, it is difficult for the clamping joint to slide out of the clamping joint accommodating opening even after long-term vibration, thereby replacing the existing nut connection method, avoiding the problem of the nut rotating and the connector separating under long-term working vibration, and reducing the failure rate of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] In order to more clearly illustrate the technical solution of the implementation mode of the utility model, the drawings required for use in the implementation mode are briefly introduced below. It should be understood that the following drawings only show certain embodiments of the utility model and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying creative work.

[0014] Figure 1 It is a structural schematic diagram of the utility model.

[0015] Figure 2 For this utility model Figure 1 Schematic diagram of the cross-section at AA.

[0016] Figure 3 For this utility model Figure 1 A partial enlarged schematic diagram of point B.

[0017] Figure 4 This is a schematic diagram of the structure of the annular plug board of the utility model. DETAILED DESCRIPTION

[0018] In order to make the purpose, technical solution and advantages of the implementation of the utility model clearer, the technical solution in the implementation of the utility model will be clearly and completely described below in conjunction with the drawings in the implementation of the utility model. Obviously, the described implementation is only a part of the implementation of the utility model, not all of the implementations. Based on the implementation of the utility model, all other implementations obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0019] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0020] Example 1

[0021] See also Figure 1-4As shown, an easy-to-plug power connector includes a first connector 1 and a second connector 2 that are butt-jointed with each other, a ring-shaped plug plate 31 is coaxially arranged on a side surface of the first connector 1 close to the second connector 2, and a ring-shaped plug groove 32 for accommodating the ring-shaped plug plate 31 is coaxially arranged on a side surface of the second connector 2 close to the first connector 1, the ring-shaped plug plate 31 and the ring-shaped plug groove 32 are connected by a clamping member, and the clamping member includes a slide groove 41 arranged on the outer side surface of the ring-shaped plug plate 31, and the length direction of the slide groove 41 intersects and is arranged perpendicular to the axis of the ring-shaped plug plate 31, and a clamping joint 42 is arranged in the slide groove 41, and the side surface of the second connector 2 is provided with a A card connector accommodating opening 46 for accommodating the card connector 42 is provided, and a reset spring 45 is also provided between the bottom of the slide 41 and the card connector; a plurality of sliders 43 are provided at one end of the card connector 42 close to the bottom of the slide 41, and a slide rail 44 adapted to the slider is provided on the inner wall of the slide 41 along its length direction; a rounded transition is formed at one end of the card connector 42 away from the bottom of the slide 41 and close to the second connector 2; a plurality of the card connectors are provided, and the plurality of the card connectors are evenly arranged at equal intervals along the circumference of the annular plug board 31; the card connector accommodating opening 46 is the same in number as the card connectors, and the card connector accommodating opening 46 is arranged one-to-one with the card connector 42. By squeezing the card connector, the card connector can be retracted into the inside of the slide, and the reset spring is compressed. The rounded transition facilitates squeezing the card connector into the card connector accommodating opening. It should be noted that this setting does not take effect when the card connector is separated from the card connector accommodating opening. The distance between the outer side surface of the second connector 2 and the inner wall of the annular plug groove 32 is 1-1.5mm, that is, the depth of the card connector accommodating opening 46 is 1-1.5mm. The card connector inside the card connector accommodating opening 46 can be released by pressing with fingers, which is convenient for insertion and removal.

[0022] The connection between the first connector and the second connector is achieved by plugging the first connector and the second connector through a snap-fitting piece, and the snap-fitting piece and the snap-fitting piece receiving opening are engaged with each other. Moreover, due to the action of a reset spring, it is difficult for the snap-fitting piece to slip out of the snap-fitting piece receiving opening even after long-term vibration, thereby replacing the existing nut connection method, avoiding the problem of the nut rotating and the connector separating under long-term working vibration, and reducing the failure rate of the equipment.

[0023] An annular rubber pad 5 is provided at the bottom of the annular plug groove 32. When the card connector is located inside the card connector accommodating opening 46 and is plugged in, the leftmost end of the annular plug plate 31 just fits with the annular sealing pad, thereby improving the sealing performance inside the first connector 1 and the second connector 2 and preventing external dust from entering the first connector 1 and the second connector 2.

[0024] The inner wall of the annular plug plate 31 is provided with a guide groove 14 along its axial direction. The guide grooves 14 are provided in a plurality and are evenly arranged along the circumference of the inner wall of the annular plug plate 31. The inner wall of the inner ring of the annular plug slot 32 is provided with a plurality of guide strips 15 adapted to the guide groove 14. The length direction of the guide strips 15 is provided along the length direction of the guide groove 14. The guide strips 15 are evenly arranged along the circumference of the inner wall of the annular plug slot 32. The first connector 1 and the second connector 2 can be prevented from rotating, and the card connector can be easily inserted into the card connector receiving opening.

[0025] A first protective cover 11 and a second protective cover 12 are respectively threadedly connected on the side surfaces of the first connector 1 and the second connector 2 that are away from each other. The first protective cover 11 and the second protective cover 12 are respectively provided with a plurality of through holes 13 for the wires to pass through.

[0026] Example 2

[0027] See also Figure 1-4 As shown, on the basis of Example 1, a plurality of pin members are provided on the first connector 1, and a plurality of socket members matched with the pin members are provided on the second connector, the pin member includes a first conductive column 61, the first conductive column is connected to the first connector 1, an end of the first conductive column away from the second connector is provided with a recessed first wire-accommodating cavity, the first wire-accommodating cavity is provided with a first locking screw 62 for fixing the wire, and an end of the first conductive column close to the second connector is provided with a lantern spring pin 63; the socket member includes a second conductive column 71, the second conductive column is connected to the second connector, an end of the second conductive column away from the first connector 1 is provided with a recessed second wire-accommodating cavity, the second wire-accommodating cavity is provided with a second locking screw 73, and an end of the second conductive column close to the first connector 1 is provided with a socket 72 matched with the lantern spring pin 63. A cable with a peeled end can be inserted into the wire cavity, and the cable is electrically connected to the jack. The second locking screw can be pressed against the insulating surface of the cable to prevent the cable from falling off from the second wire cavity. The pin is a lantern spring pin, which can effectively prevent the pin from accidentally falling off from the jack, further improving the connection stability between the first connector 1 and the second connector 2.

[0028] The first connector 1 is provided with an outer ring sleeve 8 at each of the pin parts, the pin parts are located inside the outer ring sleeve and the outer ring sleeve is coaxially arranged with the first conductive column, and the second connector 2 is provided with an inner ring sleeve 9 adapted to the outer ring sleeve at each of the socket parts, the second conductive column is located inside the inner ring sleeve and the inner ring sleeve is coaxially arranged, and the inner diameter of the outer ring sleeve is the same as the outer diameter of the inner ring sleeve. The tight fit between the outer ring sleeve and the inner ring sleeve improves the sealing of the connection between the pin parts and the socket parts.

[0029] The number of the pin members is 2-8, and the number of the socket members, outer ring sleeves, and inner ring sleeves is equal to the number of the pin members and are respectively arranged in one-to-one correspondence. The number of plug members is not less than the number of cables, and the user can select the number of plug members to be used according to the number of cables to be connected, and the remaining unused plug members do not need to be connected, which further improves the adaptability of the connector, does not require the production of multiple models, and can reduce production costs.

[0030] The first connector 1 and the second connector 2 are provided with sealing pads 10 on their respective sides close to each other. When clamped, the two sealing pads just fit each other, further improving the sealing performance of the connection between the pin and socket parts.

[0031] The above is only a preferred implementation of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent substitutions or changes within the technical scope disclosed by the present invention according to the technical solution and inventive concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. An easy-to-plug power connector, characterized in that: The invention comprises a first connector (1) and a second connector (2) which are butt-jointed with each other, wherein an annular plug plate (31) is coaxially arranged on a side surface of the first connector (1) close to the second connector (2), and an annular plug groove (32) for accommodating the annular plug plate (31) is coaxially arranged on a side surface of the second connector (2) close to the first connector (1), wherein the annular plug plate (31) and the annular plug groove (32) are connected via a clamping member, wherein the clamping member comprises a slide groove (41) arranged on the outer side surface of the annular plug plate (31), wherein the length direction of the slide groove (41) intersects and is arranged perpendicular to the axis of the annular plug plate (31), wherein a clamping joint (42) is arranged in the slide groove (41), and a clamping joint accommodating opening (46) for accommodating the clamping joint (42) is arranged on the side surface of the second connector (2), and a return spring (45) is also arranged between the bottom of the slide groove (41) and the clamping joint.

2. The easy-plug power connector according to claim 1, characterized in that: A plurality of sliding blocks (43) are arranged at one end of the clamping joint (42) close to the bottom of the slide groove (41), and a sliding rail (44) matching the sliding blocks is arranged on the inner wall of the slide groove (41) along its length direction.

3. The pluggable power connector according to claim 2, characterized in that: The end of the card joint (42) away from the bottom of the slide groove (41) and the side close to the second connector (2) are rounded transitionally.

4. The easy-plug power connector according to claim 3, characterized in that: A plurality of the clamping parts are provided, and the plurality of the clamping parts are evenly arranged at equal intervals along the circumference of the annular plug plate (31).

5. The easy-plug power connector according to claim 4, characterized in that: The number of the card joint accommodating openings (46) is the same as the number of the card joints, and the card joint accommodating openings (46) and the card joints (42) are arranged in a one-to-one correspondence.

6. The easy-plug power connector according to claim 1, characterized in that: An annular rubber pad (5) is provided at the bottom of the annular plug-in groove (32).

7. The easy-plug power connector according to claim 1, characterized in that: The inner side wall of the annular plug plate (31) is provided with a guide groove (14) along its axial direction, and a plurality of the guide grooves (14) are provided, and the plurality of the guide grooves (14) are evenly arranged along the circumferential direction of the inner wall of the annular plug plate (31); and a plurality of guide strips (15) matching the guide grooves (14) are provided on the inner wall of the inner ring of the annular plug groove (32).

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