Multifunctional electrical plugging device

Abstract

The utility model provides a multifunctional electrical plugging device, which comprises a base, a power supply wiring part arranged on the base and used for connecting an external power supply loop or a current loop, at least one plugging part, a printed circuit board used for electrical connection between the power supply wiring part and the plugging part, and a plug matched with the plugging part, the plugging part comprises a plurality of female terminals; the plugging part is a meter plugging part used for connecting an external meter or a terminal plugging part used for connecting an external terminal. The power supply wiring part comprises a plurality of power supply terminals; the plug comprises a male core and a plurality of male terminals which are arranged in the male core and are matched with the female terminals. The plugging device provided by the utility model has the characteristics of reliable connection, compact design and convenient use, and can meet various electrical connection requirements.

Description

Technical Field

[0001] The utility model relates to the technical field of electric power equipment, in particular to a multifunctional electrical plug-in device. Background Art

[0002] Electrical plug-in transposition is widely used in power grid systems, and can complete various functions such as intelligent terminal access or lossless meter replacement. For example, in power grid systems, secondary circuits with current and voltage transformers are usually used to indirectly meter or measure parameters such as current, voltage, power, phase, and frequency in the main circuit. In the energized state, the current loop of the secondary circuit cannot be open, otherwise the open circuit of the secondary coil of the current transformer will generate high voltage, which may damage the insulation of the secondary winding and the terminal, and will seriously endanger personal safety. In this case, how to lead out the current and voltage in the secondary circuit to connect to the intelligent terminal for electrical parameter measurement without disconnecting the secondary circuit is a difficult problem. The existing operation method requires wiring operations for multiple current and voltage circuits, and the operation process is complicated and the operation risk is relatively high.

[0003] For example, during the replacement of a multi-function electricity meter, the secondary circuit of the current transformer is short-circuited and the secondary circuit of the voltage transformer is disconnected at the electricity meter, making the electricity meter unable to measure. When assessing the metering point, it will cause the network loss and line loss to increase and distort, thereby affecting the assessment and analysis of the line loss, and causing certain losses to the power supply company when settling the electricity at the metering point.

[0004] In various scenarios such as the above, it is necessary to design electrical plug devices that meet different requirements to achieve efficient and safe completion of electrical connection tasks. Utility Model Content

[0005] The technical problem solved by the utility model is to provide a multifunctional electrical plug device to solve the problem that the operation process of existing operating equipment is complicated and the operation risk is relatively high during electrical connection. The following technical solutions are specifically adopted to solve the problem:

[0006] The utility model provides a multifunctional electrical plug-in device, comprising: a base, on which a power connection part for connecting an external power circuit or a current circuit is arranged, and at least one plug-in part, and a printed circuit board for electrical connection between the two, and also comprising a plug adapted to the plug-in part; the plug-in part comprises a plurality of female terminals; the plug-in part is a meter plug-in part for connecting an external meter, or a terminal plug-in part for connecting an external terminal; the power connection part comprises a plurality of power terminals; the plug comprises a male core, and a plurality of male terminals arranged in the male core and adapted to the female terminals.

[0007] Furthermore, two meter plug-in parts are provided, and an interlocking structure for prohibiting two plugs on the plug-in parts from being pulled out simultaneously is provided between the two meter plug-in parts.

[0008] Furthermore, the interlocking structure includes two U-shaped parts, each U-shaped part consists of a bottom edge, a left vertical edge and a right vertical edge, the bottom edges of the two U-shaped parts are arranged in parallel, and the U-shaped parts can slide along the axis of the bottom edge, the two left vertical edges form a left outer edge and a left inner edge, and the two right vertical edges form a right outer edge and a right inner edge; inclined surfaces are set at the top ends of the left outer edge and the left inner edge to jointly form a V-shaped left slot, and the right outer edge and the right inner edge form a V-shaped right slot; the inclined surfaces at the top ends of the left outer edge and the right outer edge respectively form snap-in protrusions.

[0009] Furthermore, two terminal plug-in parts are provided, and short-circuit contact pieces are provided between some of the female terminals.

[0010] Furthermore, the short-circuit contact piece includes a pair of long spring pieces and a pair of short spring pieces; a circular ring is set at one end of the short spring piece, which is sleeved on the female terminal, and the other ends are in conflict with each other; a circular ring is also set at one end of the long spring piece, which is overlapped on the short spring piece ring and sleeved on the female terminal, and the other ends are in conflict with each other.

[0011] Furthermore, the plug includes an upper cover, and a top corner of the upper cover is provided with a gland for the wire to pass through the plug.

[0012] Furthermore, the cable gland may be arranged at an end away from or close to the power connection portion.

[0013] Furthermore, it also includes a dust cover for covering the plug-in part when no plug is connected, and a baffle matched with the upper cover and the bottom of the dust cover is arranged on the base; and a cover plate is arranged on the power connection part.

[0014] Furthermore, a wrench for fastening the enclosure is provided on the outer side of the upper cover and the dust cover.

[0015] Furthermore, it also includes a pair of communication plug connectors.

[0016] Beneficial effects of the utility model:

[0017] 1) Two meter plug-in parts are provided, and an interlocking structure is provided between them to ensure uninterrupted connection of electrical equipment.

[0018] 2) Two terminal plug-in parts are provided, and short-circuit contact pieces are provided between some of the female terminals as required to meet various connection requirements.

[0019] 3) The power connection part is provided with multiple power terminals to meet the connection requirements of three-phase circuits and three circuits per phase.

[0020] The utility model discloses a multifunctional electrical plug device, which has the characteristics of reliable connection, compact design and convenient use and can meet various electrical connection requirements. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is an appearance diagram of the plug-in device of the utility model embodiment;

[0022] Figure 2 This is the internal electrical connection diagram of the embodiment of the utility model;

[0023] Figure 3 This is an internal diagram of a socket according to an embodiment of the utility model;

[0024] Figure 4 This is an external diagram of a socket according to an embodiment of the utility model;

[0025] Figure 5 A base diagram of an embodiment of the utility model;

[0026] Figure 6 A schematic diagram of a wrench being arranged on the upper cover of an embodiment of the utility model;

[0027] Figure 7 A schematic diagram of a wrench for setting a dust cover in an embodiment of the utility model;

[0028] Figure 8 This is a schematic diagram of the interlocking structure of an embodiment of the utility model;

[0029] Fig. 9 A schematic diagram of a short-circuit contact piece according to an embodiment of the utility model;

[0030] Fig.10 This is a schematic diagram of the cable gland on the other side of an embodiment of the utility model.

[0031] Figure markings: 1-power connection part; 2-printed circuit board; 3-connection part; 4-plug; 11-power terminal; 12-cover plate; 15-communication plug connector; 31-meter connection part; 32-terminal connection part; 33-female terminal; 34-short-circuit contact piece; 35-long spring piece; 36-short spring piece; 41-upper cover; 42-male core; 43-male terminal; 44-cable gland; 45-wrench; 46-interlocking structure; 47-dust cover; 51-base; 52-enclosure; 61-left outer edge; 62-left inner edge; 63-right outer edge; 64-right inner edge; 65-clamping protrusion. DETAILED DESCRIPTION

[0032] In order to further understand the present invention, preferred embodiments of the present invention are described below in conjunction with examples. However, it should be understood that these descriptions are only for further illustrating the features and advantages of the present invention, rather than limiting the claims of the present invention.

[0033] A multifunctional electrical plug device according to an embodiment of the utility model, such as Figure 1 As shown, it includes a power connection part 1, four plug-in parts 3 and a plug 4. Figure 2As shown, the power connection part 1 includes ten power terminals 11, and each plug part 3 includes ten female terminals 33. A printed circuit board 2 (PCB) is used to realize electrical connection between the power terminals 11 and the female terminals 33. The power terminals 11 are provided with wiring holes for wiring along the axial direction, and also with tightening holes perpendicular to the wiring holes for fixing the wires in the wiring holes. The advantage of using the printed circuit board 2 is that it is convenient to set up multi-layer electrical connections, the printed circuit board is thin in thickness and small in size, and the printed circuit board 2 can be replaced when the connection relationship needs to be changed.

[0034] The plug 4 matches the plug-in portion 3. Figure 3 and Figure 4 As shown, the main part of the plug 4 is the male core 42, and ten holes are set in the male core 42. Male terminals 43 are installed in the holes. When connecting wires, the wires are inserted into the holes and fixed by fasteners. The male terminals 43 match the female terminals 33. When the plug 4 is inserted into the plug-in part 3, the male terminals 43 and the female terminals 33 are electrically connected.

[0035] like Figure 4 As shown, the plug 4 also includes an upper cover 41 for insulation, and a cavity is formed between the upper cover 41 and the male core 42 for accommodating the connecting wire. A gland 44 is provided at one corner of the upper cover 41, and the wire enters the cavity of the plug 4 from the gland and is connected to the male terminal 43 of the male core 42.

[0036] The gland 44 for the wire to enter the plug can also be set at another corner of the upper cover 41. That is, the gland can be set at an end away from the power connection part 1, or at an end close to the power connection part 1. When used on site, plugs with glands in different positions can be selected according to actual conditions.

[0037] The electrical plug device also includes an insulating base 51. The base is as shown in FIG. Figure 5 The base 51 protects the electrical parts of the printed circuit board 2, the power terminals 11 and the female terminals 33. The cover 12 on the power connection part 1 is also used for insulation.

[0038] A barrier 52 is arranged around the plug-in portion on the base 51. When the plug 4 is inserted into the plug-in portion 3, as shown in FIG. Figure 6 As shown, the shape of the bottom of the upper cover 41 of the plug 4 matches the shape of the enclosure 52. A wrench 45 is also provided on the outer side of the upper cover 4. One end of the wrench has a buckle to buckle the enclosure 52 to lock the plug 4 and prevent the plug 4 from loosening or being pulled out by mistake. Figure 7 As shown, a dust cover 47 can be inserted into the plug-in portion 3, and the shape of the bottom of the dust cover 47 is also adapted to the shape of the enclosure 52. A wrench 45 is also provided on the outside of the dust cover 47, and one end of the wrench has a buckle to buckle the enclosure 52 for fixing the dust cover 47.

[0039] The plug-in part 3 of the electrical plug-in device includes two types: 1) a meter plug-in part 31 for connecting an external meter; and 2) a terminal plug-in part 32 for connecting an external terminal.

[0040] The embodiment of the utility model provides two meter plug-in parts 31, and an interlocking structure 46 is provided between them. Figure 8 The interlocking structure 46 is used to prevent the two plugs 4 on the two plug-in parts from being pulled out at the same time. That is, when the second plug 4 is inserted, the first plug 4 can be pulled out, which is used to ensure that the electrical connection device works uninterruptedly.

[0041] The interlocking structure 46 includes two U-shaped parts, each of which is composed of a bottom edge, a left vertical edge and a right vertical edge. The bottom edges of the two U-shaped parts are arranged in parallel, and the U-shaped parts can slide along the axis direction of the bottom edges. The left vertical edges of the two U-shaped parts form a left outer edge 61 and a left inner edge 62, and the two right vertical edges form a right outer edge 63 and a right inner edge 64. The top ends of the left outer edge 61 and the left inner edge 62 are provided with inclined surfaces to form a V-shaped left slot together. The right outer edge 63 and the right inner edge 64 also form a V-shaped right slot. The top inclined surfaces of the left outer edge 61 and the right outer edge 63 respectively form a clamping protrusion 65.

[0042] When the left plug 4 is inserted, the bottom edge of the upper cover 41 of the plug 4 is inserted along the left slot, the U-shaped piece slides, and the clamping protrusion 65 on the left outer edge 61 locks the plug. When the right plug 4 is inserted, the bottom edge of the upper cover 41 is inserted along the right slot, the U-shaped piece slides, and the clamping protrusion on the right outer edge 63 locks the plug and unlocks the left plug. The sliding of the two U-shaped pieces prevents the two plugs from being pulled out at the same time.

[0043] The present utility model embodiment is provided with two terminal plug-in parts 32, and a short-circuit contact piece 34 is provided between some female terminals 33 of the terminal plug-in parts. Fig. 9 As shown, it is used to short-circuit two connected female terminals 33. When short-circuiting is not required, a partition is provided on the plug 4 to separate the short-circuit contact piece 34.

[0044] The short-circuit contact piece 34 includes a pair of long spring pieces 35 and a pair of short spring pieces 36. A ring is set at one end of the short spring piece 36, which is sleeved on the female terminal 33, and the other ends are mutually in conflict. A ring is also set at one end of the long spring piece 35, which is stacked on the ring of the short spring piece 36 and sleeved on the female terminal 33, and the other ends are mutually in conflict. The mutually in conflicting spring pieces can be separated by a partition when short circuit is not required.

[0045] A pair of communication plugs 15 are also provided on the base 51. The pair of communication plugs includes two communication plugs, and the communication plugs at corresponding positions in the two communication plugs are connected to each other. When the base is installed, the communication line in the meter box or the electrical cabinet can be connected to one of the communication plugs. When the communication line needs to be connected, the other communication plug is directly connected to achieve convenient connection.

[0046] The above embodiments are only used to help understand the method and core idea of ​​the utility model. It should be pointed out that, for ordinary technicians in this technical field, several improvements and modifications can be made to the utility model without departing from the principle of the utility model, and these improvements and modifications also fall within the scope of protection of the claims of the utility model.

Claims

1. A multifunctional electrical plug device, characterized in that: The invention comprises a base (51) on which a power connection portion (1) for connecting an external power circuit or a current circuit is arranged, as well as at least one plug-in portion (3), and a printed circuit board (2) for electrical connection between the two, and also comprises a plug (4) adapted to the plug-in portion (3); the plug-in portion (3) comprises a plurality of female terminals (33); the plug-in portion is a meter plug-in portion (31) for connecting an external meter, or a terminal plug-in portion (32) for connecting an external terminal; the power connection portion (1) comprises a plurality of power terminals (11); the plug (4) comprises a male core (42), and a plurality of male terminals (43) arranged in the male core (42) and adapted to the female terminals (33).

2. A multifunctional electrical plug device according to claim 1, characterized in that: Two meter plug-in parts (31) are provided, and an interlocking structure (46) for preventing two plugs (4) on the plug-in parts from being pulled out simultaneously is provided between the two meter plug-in parts (31).

3. A multifunctional electrical plug device according to claim 2, characterized in that: The interlocking structure (46) comprises two U-shaped members, each of which is composed of a bottom edge, a left vertical edge and a right vertical edge. The bottom edges of the two U-shaped members are arranged in parallel, and the U-shaped members can slide along the axis direction of the bottom edges. The two left vertical edges form a left outer edge (61) and a left inner edge (62), and the two right vertical edges form a right outer edge (63) and a right inner edge (64). The top ends of the left outer edge (61) and the left inner edge (62) are provided with inclined surfaces to form a V-shaped left slot, and the right outer edge (63) and the right inner edge (64) form a V-shaped right slot. The top inclined surfaces of the left outer edge (61) and the right outer edge (63) respectively form a clamping protrusion (65).

4. A multifunctional electrical plug device according to claim 1, characterized in that: Two terminal plug-in parts (32) are provided, and a short-circuit contact piece (34) is provided between some of the female terminals (33).

5. A multifunctional electrical plug device according to claim 4, characterized in that: The short-circuit contact piece (34) comprises a pair of long spring pieces (35) and a pair of short spring pieces (36); a circular ring is provided at one end of the short spring piece (36) and is sleeved on the female terminal (33), and the other ends thereof are mutually in conflict; a circular ring is also provided at one end of the long spring piece (35) and is stacked on the circular ring of the short spring piece (36) and sleeved on the female terminal (33), and the other ends thereof are mutually in conflict.

6. A multifunctional electrical plug device according to claim 1, characterized in that: The plug (4) comprises an upper cover (41), and a gland (44) for passing a wire through the plug (4) is arranged at a top corner of the upper cover (41).

7. A multifunctional electrical plug device according to claim 6, characterized in that: The cable gland (44) may be arranged at an end away from or close to the power connection portion (1).

8. A multifunctional electrical plug device according to claim 6, characterized in that: It also includes a dust cover (47) for covering the plug-in portion (3) when no plug is connected, and a baffle (52) adapted to the upper cover (41) and the bottom of the dust cover (47) is provided on the base (51); and a cover plate (12) is provided on the power connection portion (1).

9. A multifunctional electrical plug device according to claim 8, characterized in that: A wrench (45) for fastening the enclosure (52) is provided on the outer sides of the upper cover (41) and the dust cover (47).

10. A multifunctional electrical plug device according to any one of claims 1 to 9, characterized in that: Also included is a pair of communication plug connectors (15).

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