CN100409506C - Cordless Appliance Connector - Google Patents

Abstract

The invention discloses a cordless electric appliance connector with safe use, which comprises an upper seat and a lower seat, the upper seat includes an upper seat shell, a central column power supply terminal and two concentric cylindrical power supply terminals, the lower seat It includes the lower seat shell, the electric ring seat, the rotating sliding sleeve, two conductive rings, the power supply insert spring, and the return spring. There are two annular grooves on the electric ring seat, and the two conductive rings are installed in the two annular grooves of the electric ring seat. The middle part of the electric ring base is provided with a guide post, and the middle part of the guide post is provided with a hole. The power supply plug spring is installed in the hole of the guide post. The lower seat shell is covered with a rotating sliding sleeve, and the guide post passes through the central through hole of the rotating sliding sleeve. , the rotating sliding sleeve can slide up and down in the housing of the lower seat and can rotate around the axis. There is a return spring between the rotating sliding sleeve and the electric ring seat. contacts.

Description

Cordless Appliance Connector

technical field

The present invention relates to a cordless electric appliance connector.

Background technique

Chinese invention patent ZL99117976.5, the date of authorization announcement is May 11, 2005, discloses an electrical connector used in or for cordless electrical appliances, which includes a male connector and a female socket connector, the male connector and the female socket joint are configured to be able to be combined with each other in any relative rotation, the male joint includes a power supply line extending downward and a neutral terminal, and the female socket joint has an opening at its front end for receiving said terminal, and a female receptacle connector having corresponding electrical contacts for engaging said terminal, wherein at least one of the live and neutral electrical contacts on said receptacle connector comprises a A sprung contact element for electrical connection with a corresponding terminal on a male connector. The electrical connector of the above structure solves the rotation problem well, so that the electrical body and the female socket connector can be rotated relative to each other, but the electrical contacts in the female socket connector of this electrical connector are exposed, and the electrical contacts are It is always charged, so it is very unsafe to use. Although there is a narrow groove, small metal objects are easy to touch the live contact and cause danger. Because of the small groove, it is not easy to couple Easy to align.

Contents of the invention

The technical problem to be solved by the present invention is to provide a safe cordless electrical connector.

In order to solve the above technical problems, the present invention adopts the following technical solutions: a cordless electrical connector, including an upper seat and a lower seat, and the upper seat includes an upper seat shell, a central column power supply terminal and two concentric cylindrical power supply terminals , the lower seat includes a lower seat shell, an electric ring seat, a rotating sliding sleeve, two conductive rings, a power supply insert spring, and a return spring. The lower seat shell is fixedly connected with the electric ring seat, and the electric ring seat is provided with two rings The two conductive rings respectively connected to the two poles of the external power supply are installed in the two annular grooves of the electric ring seat. The middle part of the electric ring seat is provided with a guide post, and the middle part of the guide post is provided with a hole, which is connected to the ground electrode of the external power supply. The power-supply spring is installed in the hole of the guide column. The lower housing is covered with a rotating sliding sleeve. The guiding column passes through the central through hole of the rotating sliding sleeve. The rotating sliding sleeve can slide up and down and rotate around the axis in the lower housing. , a return spring is provided between the rotating sliding sleeve and the electric ring seat, and two power-supply contacts corresponding to the two conductive rings are arranged on the rotating sliding sleeve, and the two power-supply contacts are respectively connected to the two circles of the upper seat. The cylindrical power supply terminal is matched, and the power supply insert spring in the guide column is matched with the central column power supply terminal of the upper seat.

The beneficial effect of the present invention is that: in the above technical solution, the lower housing is covered with a rotating sliding sleeve, and the rotating sliding sleeve can slide up and down and rotate around the axis in the lower housing, and the two power supply contacts are arranged on the rotating sliding sleeve. Therefore, the connection between the power supply contact and the power supply can be relatively rotated around the axis of the connector, and the upper seat and the lower seat can also be relatively rotated, so that the electrical body can be relatively rotated around the connector, which is a A connector with double rotation, which is easier to align when coupling; because there is a return spring between the rotating sliding sleeve and the electric ring seat, under the tension of the returning spring, the rotating sliding sleeve is always in the position when the lower seat is not coupled with the upper seat. In the away state, that is, the power supply contact and the conductive ring on the power ring seat are always separated, and the exposed power supply contact is not charged, so it is safer to use.

The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.

Description of drawings

Fig. 1 is a three-dimensional structural view of an embodiment of the lower seat of the cordless electrical appliance connector of the present invention.

Fig. 2 is a rear perspective structural view of the lower seat of the cordless electrical appliance connector in Fig. 1 .

FIG. 3 is an exploded perspective view of the three-dimensional structure of the lower seat of the cordless electrical appliance connector in FIG. 1 .

Fig. 4 is a sectional view of the overall structure of the lower seat of the cordless electrical appliance connector in Fig. 1 .

Fig. 5 is a schematic cross-sectional view of the structure of the cordless appliance connector in Fig. 4 in working state.

Fig. 6 is a three-dimensional structural view of the electric ring seat of the lower seat of the cordless electrical appliance connector in Fig. 1 .

Fig. 7 is a sectional view of the three-dimensional structure of the electric ring seat in Fig. 6 .

Fig. 8 is a three-dimensional structural view of the rotating sliding sleeve assembly of the lower seat of the cordless electrical appliance connector in Fig. 1 .

Fig. 9 is a rear perspective structure diagram of the rotating sliding sleeve assembly in Fig. 8 .

Fig. 10 is a three-dimensional structural view of the lower seat housing of the cordless electrical connector lower seat in Fig. 1 .

Fig. 11 is a three-dimensional structural view of the outer conductive ring of the lower seat of the cordless electrical appliance connector in Fig. 1 .

Fig. 12 is a three-dimensional structural view of the inner conductive ring of the lower seat of the cordless electrical appliance connector in Fig. 1 .

Fig. 13 is a schematic diagram of an exploded structure of an embodiment of the upper seat of the cordless electrical appliance connector of the present invention.

In each accompanying drawing: 200, electric ring seat; 201, drainage hole; 202, positioning hole; 203, guide post; 204, hole; 205, inner annular groove; 206, outer annular groove; 207, water flow guide cup; 210, Lower seat shell; 211, positioning column; 212, guide surface; 213, installation notch; 214, installation positioning groove; 215, annular groove; 220, rotating sliding sleeve; 221, isolation rib; 222, water flow guide cup; , protruding ribs; 224, conductive shrapnel positioning column; 225, contact stroke limit column; 226, insulation board; 227, drainage groove; 230, inner conductive ring; 231, terminal block; 232, positioning plate; 240, Outer conductive ring; 241, connection terminal; 242, positioning plate; 260, conductive shrapnel; 270, power supply contact; 280, return spring; 290, contact contact; 300, power supply insertion spring; 301, connection terminal; 310 , the upper seat housing; 320, the inner cylindrical power supply terminal; 330, the outer cylindrical power supply terminal; 340, the central column power supply terminal.

Detailed ways

As shown in Figures 1 to 13, an embodiment of the cordless electrical connector of the present invention includes an upper seat and a lower seat, and the upper seat includes an upper seat shell 310, a central column power supply terminal 340, and two concentric inner cylinders Shaped power supply terminal 320 and outer cylindrical power supply terminal 330, the lower seat includes lower seat housing 210, electric ring seat 200, rotating sliding sleeve 220, inner conductive ring 230, outer conductive ring 240, power supply plug spring 300, return spring 280, the lower seat housing 210 is provided with a positioning column 211, the electric ring seat 200 is provided with a positioning hole 202, the lower seat housing 210 and the electric ring seat 200 are realized through the cooperation of the positioning column 211 and the positioning hole 202 Fixedly connected, the lower seat housing 210 can be provided with a guide surface 212, an installation notch 213, and an installation positioning groove 214. The electric ring seat 200 is provided with an inner annular groove 205 and an outer annular groove 206, and an inner conductive ring 230 and an outer conductive ring. The ring 240 is respectively installed in the inner annular groove 205 and the outer annular groove 206 of the electric ring seat 200, and the inner conductive ring 230 and the outer conductive ring 240 are respectively provided with a connecting terminal 231 and a connecting terminal 241 connected to the two poles of the external power supply, and the inner conductive The ring 230 and the outer conductive ring 240 can be provided with a positioning plate 232 and a positioning plate 242 respectively, the middle part of the electric ring seat 200 is provided with a guide post 203, the middle part of the guide post 203 is provided with a hole 204, and the power supply insert spring 300 is installed on the guide post. In the hole 204 of 203, the power supply plug spring 300 is provided with a connection terminal 301 connected to the grounding electrode of the external power supply, the lower seat housing 210 is covered with a rotating sliding sleeve 220, and the guide column 203 passes through the central through hole of the rotating sliding sleeve 220 , the rotating sliding sleeve 220 can slide up and down and rotate around the axis in the lower seat housing 210, a return spring 280 is provided between the rotating sliding sleeve 220 and the electric ring seat 200, and a spaced apart Two power supply contacts 270 corresponding to the two conductive rings 230, 240 respectively, the two power supply contacts 270 are respectively matched with the inner cylindrical power supply terminal 320 and the outer cylindrical power supply terminal 330 of the upper seat, and the guide column The power supply plug spring 300 in 203 is matched with the center column power supply terminal 340 of the upper seat. For better socketing, an annular protruding rib 223 may be provided on the periphery of the rotating sliding sleeve 220 , and the annular protruding rib 223 cooperates with the annular groove 215 provided on the lower seat housing 210 . For safer use, an isolation rib 221 separating the two power supply contacts 270 can be provided in the middle of the top surface of the rotating sliding sleeve 220, and a drainage groove 227 is opened on the isolation rib 221 to keep the contacts from being damaged by water or other substances. Short circuit, a water flow guide cup 222 is provided in the middle of the rotating sliding sleeve 220, and a water flow guide cup 207 is provided in the middle of the electric ring seat 200 to control the flow direction of the water after the connector is accidentally splashed, and the water flow in the electric ring seat 200 The bottom of the guide cup 207 is provided with a drainage hole 201, so that water can flow out of the housing of the lower seat, ensuring that the connector will not leak or short circuit due to accidental splashing of water, so it is safer to use. In order to make the conductive contact of the power supply contact good, the bottom of the two power supply contacts 270 can be provided with a conductive shrapnel 260, and each conductive shrapnel 260 is provided with a contact point 290, in order to prevent the conductive shrapnel 260 from shifting, rotate The sliding sleeve 220 may be provided with a conductive shrapnel positioning post 224 , and the conductive shrapnel 260 is provided with a positioning hole matching the conductive shrapnel positioning post 224 . In order to make the conductive shrapnel of the power supply contacts contact the conductive ring smoothly, two conductive shrapnels 260 connected together can be provided under each power feeding contact 270 , and each conductive shrapnel 260 is provided with a contact point 290 . In order to ensure good contact between the power-supplying contact and the conductive ring, and to prevent excessive deformation of the conductive shrapnel, a contact stroke limiting column 225 may be provided above at least one conductive shrapnel 260 . In order to prevent the return spring from shifting, an electric separator 226 may be provided on the bottom surface of the rotating sliding sleeve 220 .

The working principle of the cordless electrical connector of the present invention is as follows: as shown in Figure 4, when the lower seat is not coupled with the upper seat, under the tension of the return spring 280, the rotating sliding sleeve 220 and the electric ring seat 200 are separated, and the two electric contacts The point 270 is not in contact with the two conductive rings 230, 240, and the two power supply contacts 270 are not charged; Next, the rotating sliding sleeve 220 moves downward until the lower seat and the upper seat are coupled in place. At this time, the rotating sliding sleeve 220 and the electric ring seat 200 are in a closed state, and the two power supply contacts 270 are in contact with the two conductive rings 230, 240. The power supply contact 270 is electrified, and supplies power to the electrical appliance body through the matching contact between the inner cylindrical power supply terminal 320 and the outer cylindrical power supply terminal 330 of the upper base and the two power supply contacts 270 respectively. Since the grounding electrode of the electrical appliance is connected through the cooperation of the central column power supply terminal 340 of the upper base and the power supply plug spring 300 in the middle guide column 203 of the lower base, when the upper base and the lower base are coupled, the grounding electrode is first conducted. The power transmission ring of the upper seat contacts the power transmission contact 270 of the rotating sliding sleeve 220, and the rotating sliding sleeve 220 moves downward under the action of gravity, and the two power transmission contacts 270 are in contact with the conductive rings 230 and 240, and the N and L poles are connected. ; When the upper seat is pulled out from the lower seat, the return spring 280 jacks up the rotating sliding sleeve 220, the two power supply contacts 270 are separated from the conductive rings 230, 240 at first, the L and N poles are disconnected first, and finally the grounding pole is disconnected, so It is safer to use.

Claims (10)

1. A cordless electric appliance connector, comprising an upper seat and a lower seat, the upper seat includes an upper seat housing (310), a center post power supply terminal (340) and two concentric cylindrical power supply terminals (320, 330) , characterized in that: the lower seat includes a lower seat housing (210), an electric ring seat (200), a rotating sliding sleeve (220), two conductive rings (230, 240), a power supply spring (300), a reset The spring (280), the lower seat shell (210) is fixedly connected with the electric ring seat (200), and the electric ring seat (200) is provided with two annular grooves (205, 206), which are respectively connected to the N pole and the L pole of the external power supply. The two connected conductive rings (230, 240) are installed in the two annular grooves (205, 206) of the electric ring seat (200), and the middle part of the electric ring seat (200) is provided with a guide post (203), and the guide post (203) There is a hole (204) in the middle of the body, and the power-supply plug spring (300) connected to the ground electrode of the external power supply is installed in the hole (204) of the guide post (203). The sleeve (220), the guide post (203) passes through the central through hole of the rotating sliding sleeve (220), the rotating sliding sleeve (220) can slide up and down in the lower housing (210) and rotate around the axis, the rotating sliding sleeve (220) and the electric ring seat (200) are provided with a return spring (280), and the rotating sliding sleeve (220) is provided with two separate electric contactors corresponding to the two conductive rings (230, 240). point (270), two power supply contacts (270) are respectively matched with two cylindrical power supply terminals (320, 330) of the upper seat, and the power supply insert spring (300) in the guide column (203) is matched with the center of the upper seat Cooperate with the post power supply terminal (340). 2. The cordless appliance connector according to claim 1, characterized in that: the periphery of the top surface of the rotating sliding sleeve (220) is provided with an annular protruding rib (223), and the annular protruding rib (223) is connected with the lower seat The shell (210) is provided with an annular groove (215) for matching. 3. The cordless electrical connector according to claim 2, characterized in that: an isolation rib (221) separating the two power-supply contacts is provided in the middle of the top surface of the rotating sliding sleeve (220), and the isolation rib (221) is A drainage groove (227) is provided, and water flow guide cups (222, 207) are respectively arranged in the middle of the rotating sliding sleeve (220) and the electric ring seat (200). The water flow guiding cup (222) of the rotating sliding sleeve (220) and A drainage gap is provided between the guide columns (203) of the electric ring seat (200), and a drain hole (201) is provided at the bottom of the water flow guide cup (207) of the electric ring seat (200). 4. The cordless appliance connector according to claim 1, 2 or 3, characterized in that: conductive shrapnels (260) are arranged below the two power supply contacts (270), and each conductive shrapnel (260) is Contact contacts (290) are provided. 5. The cordless electrical appliance connector according to claim 4, characterized in that: two conductive shrapnels (260) connected together are provided below each power supply contact (270), and each conductive shrapnel (260) is Contact contacts (290) are provided. 6. The cordless electrical appliance connector according to claim 5, characterized in that: a contact stroke limiting post (225) is provided above at least one conductive shrapnel (260). 7. The cordless electrical appliance connector according to claim 1, 2 or 3, characterized in that: an electric insulation plate (226) is provided on the bottom surface of the rotating sliding sleeve (220). 8. The cordless appliance connector according to claim 4, characterized in that: the bottom surface of the rotating sliding sleeve (220) is provided with an electric separator (226). 9. The cordless appliance connector according to claim 5, characterized in that: the bottom surface of the rotating sliding sleeve (220) is provided with an electric separator (226). 10. The cordless electrical appliance connector according to claim 6, characterized in that: an electric separator (226) is provided on the bottom surface of the rotating sliding sleeve (220).

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