Miniature mutual inductor for direct connection type three-phase intelligent electric meter

Abstract

The utility model provides a miniature mutual inductor for a direct connection type three-phase intelligent electric meter, which comprises a lower half part shell and an upper half part shell, one end of the lower half part shell is rotatably connected with one end of the upper half part shell, and a circular ring with a through hole is formed between the lower half part shell and the upper half part shell. The other end of the lower half part shell is clamped with the other end of the upper half part shell; according to the utility model, through the arrangement of the opening between the lower half part shell and the upper half part shell, bulges can be prevented from being generated at the opening, so that the whole body is smoother, and the installation space is reduced.

Description

Technical Field

[0001] The utility model relates to the field of mutual inductors, and in particular to a micro mutual inductor for a direct-connection three-phase intelligent electric meter. Background Art

[0002] Direct-connect three-phase smart meters use micro-transformers, mainly to convert high currents into low currents that can be measured by the meter when the current is large or special measurements are required, so as to ensure the accuracy and safety of the meter.

[0003] However, existing miniature transformers, such as open-type transformers, have an opening design that causes the opening to be relatively protruding, thereby increasing the installation space.

[0004] Therefore, it is very necessary to invent a micro-transformer for a direct-connection three-phase smart meter. Utility Model Content

[0005] In order to solve the above technical problems, the present invention provides a direct-connection type three-phase smart meter micro-transformer adopts the following technical solution: a direct-connection type three-phase smart meter micro-transformer, comprising a lower half shell and an upper half shell, wherein: one end of the lower half shell is rotatably connected to one end of the upper half shell, and the lower half shell and the upper half shell form a circular ring with a through hole, and the other end of the lower half shell is clamped with the other end of the upper half shell;

[0006] Preferably, a lower core structure is fixedly installed inside the lower half shell, and a lead wire is provided on the lower half shell;

[0007] Preferably, an upper core structure is fixedly installed inside the upper half of the shell, and the upper core structure is in contact with the lower core structure.

[0008] Preferably, a J-shaped lower notch is provided at one end of the lower half shell, and the lower notch and one end of the lower half shell form a lower boss, which is clamped with the upper half shell; one end of the lower core structure leaks out from the lower boss.

[0009] Preferably, a countersunk hole is provided at one end of the lower half shell, and the other end of the lower core structure is located in the countersunk hole; the lower half shell is rotatably connected to one end of the upper half shell through the countersunk hole.

[0010] Preferably, an upper notch corresponding to the lower boss is opened at one end of the upper shell, and the upper notch and one end of the upper shell form an upper boss corresponding to the lower notch; one end of the upper core structure leaks out from the upper boss, and the end of the upper core structure leaking out from the upper boss is in active contact with the end of the lower core structure leaking out from the lower boss.

[0011] Preferably, a metal countersunk column is fixedly installed on the other end of the upper half of the shell, and the small head end of the countersunk column contacts the other end of the upper core structure, and the countersunk column is rotatably installed in the countersunk hole; the large head end of the countersunk column contacts one end of the lower core structure in the countersunk hole.

[0012] Preferably, an elastic barb is fixedly mounted on one side of the upper boss, and the elastic barb is located in the upper notch, and the elastic barb is clamped with the lower boss.

[0013] Compared with the prior art, the advantages of the present invention are:

[0014] 1. The present invention can avoid bulges at the opening by setting the opening between the lower shell and the upper shell, making the whole more flat, thereby reducing the space during installation.

[0015] 2. The utility model is provided with an elastic hook and a lower boss, so that the lower shell and the upper shell can be opened or closed without the aid of external tools and accessories, which is more convenient and flexible.

[0016] 3. The utility model is easy to install and disassemble through the overall setting. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a structural diagram of the present utility model.

[0018] Figure 2 It is a structural schematic diagram of the medicine dispenser of the present utility model.

[0019] Figure 3 It is a schematic diagram of the structure of the regulating bolt of the present utility model.

[0020] In the picture:

[0021] Lower half shell 1, upper half shell 2, lead wire 3, through hole 4, lower notch 5, lower boss 6, countersunk hole 7, lower core structure 8, upper notch 9, upper boss 10, elastic barb 11, countersunk column 12, upper core structure 13. DETAILED DESCRIPTION

[0022] In order to help those skilled in the art better understand the present invention, the following will clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative work should fall within the scope of protection of the present invention.

[0023] In the description of the embodiments, it should be noted that the terms "upper", "lower", "inner", "outer", "front end", "rear end", "two ends", "one end", "the other end" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the devices or components referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention. In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance. In the description of the utility model, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "provided with", "connected", etc. should be understood in a broad sense. For example, "connected" 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 a direct connection, an indirect connection through an intermediate medium, or it can be a communication between the internal parts of two components. 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 the specific circumstances.

[0024] The present invention will be further described below with reference to the accompanying drawings: Example

[0025] Reference Figure 1-3 A direct-connection micro-transformer for a three-phase smart meter includes a lower housing 1 and an upper housing 2, wherein: one end of the lower housing 1 is rotatably connected to one end of the upper housing 2 so that the lower housing 1 and the other end of the upper housing 2 can be opened or closed, and a ring shape with a through hole 4 is formed between the lower housing 1 and the upper housing 2 so that a wiring harness passes through the middle thereof, and the other end of the lower housing 1 is clamped to the other end of the upper housing 2 so that the lower housing 1 and the upper housing 2 can be opened and closed;

[0026] In this embodiment, a lower core structure 8 is fixedly installed inside the lower half shell 1, and the lower half shell 1 is provided with a lead wire 3, with two lead wires in total, one is S1 and the other is S2; an upper core structure 13 is fixedly installed inside the upper half shell 2, and the upper core structure 13 is in contact with the lower core structure 8 so as to be connected to the line through the lead wire 3.

[0027] In this embodiment, a J-shaped lower notch 5 is provided at one end of the lower half shell 1, and the lower notch 5 and one end of the lower half shell 1 form a lower boss 6, which is clamped with the upper half shell 2 so that when the lower half shell 1 is docked with the upper half shell 2, a hidden space is provided for the upper boss 10 through the lower notch 5; one end of the lower core structure 8 leaks out from the lower boss 6, so that after the lower half shell 1 and the upper half shell 2 are docked together, one end of the lower core structure 8 is in contact with one end of the upper core structure 13.

[0028] In this embodiment, a countersunk hole 7 is provided at one end of the lower half shell 1 to provide installation space for the countersunk column 12 and ensure the stability between the countersunk column 12 and the lower half shell 1, and the other end of the lower core structure 8 is in the countersunk hole 7 so that the other end of the lower core structure 8 can always be in contact with the other end of the upper core structure 13; the lower half shell 1 is rotatably connected to one end of the upper half shell 2 through the countersunk hole 7.

[0029] In this embodiment, an upper notch 9 corresponding to the lower boss 6 is opened at one end of the upper shell 2, so that when the lower shell 1 is docked with the upper shell 2, the upper notch 9 provides a hidden space for the lower boss 6, and the upper notch 9 and one end of the upper shell 2 form an upper boss 10 corresponding to the lower notch 5, so that the lower shell 1 and the upper shell 2 can be positioned when docked; one end of the upper core structure 13 leaks out from the upper boss 10, and the end of the upper core structure 13 leaking out from the upper boss 10 is in active contact with the end of the lower core structure 8 leaking out from the lower boss 6.

[0030] In this embodiment, a metal countersunk column 12 is fixedly installed at the other end of the upper shell 2, so that the stability and smoothness of the rotation of the upper shell 2 and the lower shell 1 can be ensured by the countersunk column 12, while the other end of the lower core structure 8 is always in contact with the other end of the upper core structure 13, and the small head end of the countersunk column 12 is in contact with the other end of the upper core structure 13, and the countersunk column 12 is rotatably installed in the countersunk hole 7; the large head end of the countersunk column 12 is in contact with one end of the lower core structure 8 in the countersunk hole 7.

[0031] In this embodiment, an elastic barb 11 is fixedly installed on one side of the upper boss 10, and the elastic barb 11 is located in the upper notch 9. The elastic barb 11 is engaged with the lower boss 6 so that one end of the upper shell 2 and one end of the lower shell 1 can be locked or opened.

[0032] In this embodiment, when in use, the elastic barb 11 is bent outward to separate the elastic barb 11 from the lower boss 6, and the upper shell 2 can be rotated, and then the required wiring harness is allowed to enter the through hole 4, and the upper shell 2 is reset, and the elastic barb 11 is engaged with the lower boss 6; finally, it is connected to the circuit through the lead wire 3.

[0033] Utilizing the technical solution described in the utility model, or those skilled in the art designing similar technical solutions inspired by the technical solution of the utility model to achieve the above-mentioned technical effects, all fall within the scope of protection of the utility model.

Claims

1. A direct-connect three-phase smart meter micro-transformer, characterized by: The invention comprises a lower shell (1) and an upper shell (2), wherein one end of the lower shell (1) is rotatably connected to one end of the upper shell (2), and a circular ring with a through hole (4) is formed between the lower shell (1) and the upper shell (2), and the other end of the lower shell (1) is clamped to the other end of the upper shell (2); A lower iron core structure (8) is fixedly installed inside the lower half shell (1), and a lead wire (3) is provided on the lower half shell (1); An upper iron core structure (13) is fixedly installed inside the upper half shell (2), and the upper iron core structure (13) is in contact with the lower iron core structure (8).

2. The direct-connect three-phase smart meter micro-transformer according to claim 1, characterized in that: A J-shaped lower notch (5) is provided at one end of the lower half shell (1), and the lower notch (5) and one end of the lower half shell (1) form a lower boss (6), which is engaged with the upper half shell (2); one end of the lower core structure (8) leaks out of the lower boss (6).

3. A direct-connect three-phase smart meter micro-transformer according to claim 1 or 2, characterized in that: One end of the lower half shell (1) is provided with a countersunk hole (7), and the other end of the lower core structure (8) is located in the countersunk hole (7); the lower half shell (1) is rotatably connected to one end of the upper half shell (2) via the countersunk hole (7).

4. The direct-connect three-phase smart meter micro-transformer according to claim 2, characterized in that: An upper notch (9) corresponding to the lower boss (6) is formed at one end of the upper shell (2), and the upper notch (9) and one end of the upper shell (2) form an upper boss (10) corresponding to the lower notch (5); one end of the upper core structure (13) leaks out of the upper boss (10), and the end of the upper core structure (13) leaking out of the upper boss (10) is in movable contact with the end of the lower core structure (8) leaking out of the lower boss (6).

5. The direct-connect three-phase smart meter micro-transformer according to claim 3, characterized in that: A metal countersunk column (12) is fixedly mounted on the other end of the upper half shell (2), and the small end of the countersunk column (12) contacts the other end of the upper core structure (13). The countersunk column (12) is rotatably mounted in the countersunk hole (7); the large end of the countersunk column (12) contacts one end of the lower core structure (8) in the countersunk hole (7).

6. The direct-connect three-phase smart meter micro-transformer according to claim 4, characterized in that: An elastic barb (11) is fixedly mounted on one side of the upper boss (10), and the elastic barb (11) is located in the upper notch (9), and the elastic barb (11) is engaged with the lower boss (6).

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