CN201805090U - a power connector - Google Patents

Abstract

The utility model relates to a power connector. The problems that a common power supply connector is not firm in connection, a plug is easy to shake and fall out of a socket are mainly solved. The plug comprises a socket and a plug, wherein the socket is provided with a jack into which the plug is inserted, the jack is composed of an outer sleeve and an inner sleeve, the inner wall of the outer sleeve is provided with a plurality of positioning grooves, the outer sleeve is provided with an axial cutting groove, the front end of the axial cutting groove is connected with the positioning grooves, the rear part of the axial cutting groove is provided with a radial cutting groove, the axial cutting groove and the radial cutting groove form a clamping groove together, and the front end of the plug is provided with a plurality of positioning blocks corresponding to the positioning grooves. The utility model has the advantages that: the plug and the socket are connected more firmly, and the plug is not easy to shake and fall out of the socket; the anti-lost structure is adopted, the connector is prevented from being reversely connected, the structure is more reasonable, the assembly is facilitated, and the product percent of pass is further improved.

Description

a power connector

technical field

The utility model relates to a power supply connection device, in particular to a power supply connector with firm connection and not easy to fall out.

Background technique

At present, the structure of the power connector generally includes a plug and a socket. The front end of the plug is designed as a cylindrical structure, and the plug is directly inserted into the socket. However, this kind of connector does not have a fool-proof structure, and it often causes reverse connection during use, causing damage to the parts in the plug or socket. In addition, the connector with this structure is not very securely connected, easy to shake, and the plug is easy to fall out of the socket. out, affect the use. For example, Chinese utility model patent 200620053364.7 discloses an audio connector, which includes an insulating base body, and a concentric jack for plug insertion is provided in the insulating base body. The concentric jack in the insulating base body is composed of an outer sleeve and an inner sleeve. The inner wall of the sleeve is provided with a positioning locking piece, and a set of symmetrical grooves are respectively provided in the inner sleeve and the outer wall in the axial direction. A pair of connecting contacts are provided in the groove, and a positioning bottom cover is provided at the bottom of the concentric jack. A rubber ring is provided at the bottom of the concentric socket between the barrel and the inner sleeve. The rubber ring provided in the connector reduces the mechanical damage caused by the impact of the plug on the connector during connection, but it cannot ensure a stable connection of the connector, and there are still problems that it is easy to shake and fall out.

Contents of the invention

The utility model mainly solves the problem that the general power connector is not firmly connected and the plug is easy to shake and fall out of the socket, and provides a power connector with firm connection and not easy to fall out.

The technical solution adopted by the utility model to solve the technical problem is: a power connector, including a socket and a plug, and a socket for inserting the plug is provided on the socket, and the socket is composed of an outer sleeve and an inner sleeve. Several positioning grooves are arranged on the inner wall of the outer sleeve, and an axial slot is arranged on the outer sleeve, the front end of the axial slot is connected with the positioning slot, and a diameter is provided at the rear of the axial slot. The axial slot and the radial slot together form a locking slot, and a plurality of positioning blocks corresponding to the positioning slot are arranged on the front end of the plug. The positioning groove and card groove on the outer sleeve of the socket form a fool-proof structure, which can prevent the plug from being reversed and causing damage to the plug. In addition, the card slot and the positioning block also form a spiral buckle structure. The positioning block slides into the axial slot and then is locked in the radial slot after being rotated, which makes the plug firmly connected in the socket and is not easy to fall out. It solves the problem that the plug is not firmly inserted into the socket and is easy to shake in the past.

As a preferred solution of the above solution, two positioning grooves one and two, one large and one small, are provided on the inner wall of the outer sleeve, wherein the second positioning groove is connected with the axial slot. Two positioning slots are set, and the positioning slots are designed to be one large and one small, so that the positioning of the plug is more accurate when it is inserted into the socket, and it is less likely to be reversed.

As a preferred solution of the above solution, a rear cover is provided on the rear of the socket, the rear cover is cup-shaped, covers the outer sleeve, and the front end of the rear cover is fixed on the back of the socket. The back cover covers the outer sleeve and protects the parts covered therein.

As a preferred solution of the above solution, an insulating wall is provided on the rear end of the rear cover, and the insulating wall is formed by surrounding and connecting several grooves facing away from the axis, and several connecting holes are arranged in the socket. The rear ends of the contact pieces and the connection contact pieces are respectively arranged in the corresponding groove bodies, and the rear ends of the connection contact pieces are fixed in the groove bodies. The insulating wall ensures that the connecting contacts are not short-circuited with each other, thus playing a very good insulating effect.

As a preferred solution of the above solution, the plug includes a shell, a connector is connected to the front end of the shell, the positioning block is arranged at the front end of the connector, and there are two positioning blocks, namely positioning block 1 and positioning block 2, The positioning block 1 and the positioning block 2 correspond to the positions of the positioning groove 1 and the positioning groove 2 on the outer sleeve respectively. The size of the first positioning block matches the size of the first positioning slot, the size of the second positioning block matches the second size of the positioning slot, and the positions between the first positioning block and the second positioning block are consistent with the positions of the first positioning slot and the second positioning slot, When the plug is connected with the socket, the positioning block one slides into the positioning groove one, and the second positioning block two slides into the positioning groove two, so as to prevent the reverse connection of the plug and the socket.

As a preferred solution of the above solution, a sliding key base is protruded on the housing, and a sliding key is connected to the sliding key base. The front end of the sliding key extends vertically downward to the connector to form a button body. Body front end is provided with stopper, and the size of described stopper matches with the size of positioning groove, is provided with mounting hole at sliding key base front end, is provided with spring in mounting hole, and described spring is supported on the inboard of button body. The sliding key can move back and forth. After the plug and the socket are connected, the stopper on the button body just fits into the positioning groove 1, and the plug is locked on the socket, preventing the plug from rotating, so that the plug cannot fall out of the socket.

The utility model has the advantages that: the buckle structure formed by the card slot and the positioning block makes the connection between the plug and the socket more firm, and the plug is not easy to shake and fall out of the socket; the positioning slot and the card slot form a fool-proof structure to prevent The reverse connection of the connector is avoided, and the connector is protected; the structure is more reasonable, the assembly is convenient, and the qualified rate of the product is improved.

Description of drawings

Fig. 1 is a kind of structural representation of socket in the utility model;

Fig. 2 is a schematic exploded view of a structure of the socket in the utility model;

Fig. 3 is a kind of structural representation of plug in the utility model;

Fig. 4 is a structural sectional view of the plug in the utility model.

Detailed ways:

The technical solutions of the present utility model will be further described below through the embodiments and in conjunction with the accompanying drawings.

Example:

This embodiment is a power connector, as shown in FIG. 1 and FIG. 3 , including two parts: a socket 1 and a plug 2 . As shown in Figure 1 and Figure 2, the socket is provided with a socket in the middle of the socket, and the socket is composed of an outer sleeve 3 and an inner sleeve 4, and the inner sleeve is coaxially arranged in the outer sleeve. Two positioning grooves one 11 and two positioning grooves 12, one large and one small, are arranged on the inner wall of the outer sleeve. At the three o'clock position of the barrel, a fixed piece 22 is also embedded in the positioning groove one. An axial slot 9 is also arranged on the outer sleeve, the front part of the axial slot is connected with the positioning slot two, and a radial slot 10 is arranged at the rear part of the axial slot, and the axial slot and the radial The cutting grooves jointly form an L-shaped locking groove. Three connection contact pieces 8 are installed in the jack, one contact piece is installed in the inner sleeve, and the other two connection contact pieces are installed between the inner sleeve and the outer sleeve. The socket rear portion is provided with a back cover 5, which is cup-shaped and covered outside the outer sleeve, and the back cover front end is fixed on the socket back side by bolts. An insulating wall 6 is arranged on the rear end of the back cover, and the insulating wall includes three grooves 7, the grooves are respectively facing away from the axis of the back cover and arranged around the axis. The rear ends of the connecting contacts 8 extend into the corresponding grooves respectively, and are fixed on the grooves by bolts, and the grooves separate the connecting contacts to prevent short circuit between the connecting contacts.

As shown in Fig. 3 and Fig. 4, the plug 2 includes a shell 23, the front end of the shell is connected with a connector 14, the connector is in the shape of a cylinder, and it matches with the gap between the outer sleeve and the inner sleeve on the socket. The front end of the connector is provided with a positioning block 15 and a positioning block 2 16, the shapes and positions of the positioning block 1 and the positioning block 2 correspond to the positioning groove 11 and the positioning groove 12 respectively, and a sliding key seat is formed on the casing 23 19. As shown in Figure 3, a gap is formed inwardly at the joint between the front end of the sliding key base and the front end of the housing, and a sliding key 13 is connected to the sliding key base, and the front end of the sliding key extends vertically downward to the connector to form a buckle Body 17, the front end of the button body is provided with a stopper 18, the button body is located in the gap, the stopper is against the surface of the connector, the size of the stopper matches the size of the positioning groove-11, and a mounting hole is provided at the front end of the sliding key base 20. A spring 21 is arranged in the installation hole, and a protrusion is arranged at the place opposite to the installation hole inside the button body, and the front end of the spring is arranged on the protrusion.

When in use, align the positioning block 1 on the plug with the positioning slot 1, align the positioning block 2 with the positioning slot 2, and then push the plug inward, and the positioning block 1 enters the axial slot from the positioning slot 1 until the positioning block Move to the bottom of the axial slot, and then select the plug so that the positioning block enters the radial slot, and the positioning block is stuck in the radial slot. At this time, the button body of the sliding key on the plug moves to the positioning position as it rotates. Before slot one, the stopper at the front end of the button body is embedded in positioning slot one, and the plug is locked on the socket. When dismounting, the user pushes the sliding key backward to draw the block out from the positioning groove one, and then rotates in the opposite direction to move the positioning block one out from the radial slot to the axial slot, and finally pulls out the plug.

The specific embodiments described herein are merely illustrative of the spirit of the invention. Those skilled in the art to which the present invention belongs can make various modifications or supplements to the described specific embodiments or adopt similar methods to replace them, but they will not deviate from the spirit of the present invention or go beyond the definition of the appended claims range.

Although terms such as plug, socket, inner sleeve, and outer sleeve are frequently used in this document, the possibility of using other terms is not excluded. These terms are used only for the purpose of describing and explaining the essence of the present invention more conveniently; interpreting them as any kind of additional limitation is against the spirit of the present invention.

Claims (6)

1. power connector, comprise socket and plug, on socket, be provided with the jack that allows plug insert, this jack is made of outer sleeve and inner sleeve, the inwall of outer sleeve is provided with several location notchs, it is characterized in that: on described outer sleeve (3), be provided with an axial grooving (9), axially the grooving front end is connected with location notch, be provided with a grooving (10) radially at the axial rear portion of grooving, described axial grooving and radially grooving constituted a draw-in groove together, described plug head is provided with some and the corresponding locating piece of location notch.

2. a kind of power connector according to claim 1, the inwall that it is characterized in that described outer sleeve (3) are provided with two small one and large one location notch one (11) and location notchs two (12), and wherein location notch two links to each other with described axial grooving (9).

3. a kind of power connector according to claim 1 and 2 is characterized in that described socket (1) rear portion is provided with bonnet (5), and this bonnet is cup-shaped, covers on the described outer sleeve (3), and the bonnet front end is fixed on socket (1) back side.

4. a kind of power connector according to claim 3, it is characterized in that described bonnet (5) rear end is provided with insulating wall (6), described insulating wall by several cell bodies (7) dorsad the axle center around forming, in described jack, be provided with several and connect contact (8), the rear end that connects contact is separately positioned in the corresponding with it cell body, connects the contact rear end and is fixed in the cell body.

5. a kind of power connector according to claim 2, it is characterized in that described plug (2) comprises shell (23), be connected with connector (14) at the shell front end, described locating piece is arranged on the connector front end, locating piece is provided with two, be respectively locating piece one (15) and locating piece two (16), described locating piece one, locating piece two are corresponding with the position size of location notch one (11), location notch two (12) on the outer sleeve (3) respectively.

6. a kind of power connector according to claim 5, it is characterized in that going up projection at described shell (23) is formed with slip keyseat (19), on the slip keyseat, be connected with slide key (13), described slide key front end extends to connector downward vertically and is formed with a button (17), the button front end is provided with block (18), the size of described block matches with location notch one (11) size, be provided with installing hole (20) at slip keyseat front end, be provided with spring (21) in installing hole, described spring withstands on the inboard of button (17).

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