KR200411769Y1 - An assembly type block for electronic power meter - Google Patents

Abstract

The present invention relates to an electronic watt-hour meter, the present invention is composed of a terminal block formed of a single block body in an assembly type, the maximum allowable capacity of the current used according to the application of the terminal (terminal) to be assembled thereto is an electronic type of Disclosed is a terminal block-assembly type electronic watt-hour meter that can be used as a watt-hour meter, thereby reducing manufacturing costs and improving productivity due to assembly convenience of constituent members.

The assembled electronic electricity meter of the present invention is composed of a body block (base) on which a current transformer (Current Transformer), etc., and a terminal block into which the maximum allowable capacity of the current used are inserted 40A, 120A and an auxiliary terminal are assembled. In this case, the front cover which protects the internal printed board and the like, the terminal cover which prevents the setting change of the terminal, and the setting part cover which prevents the change of the internal program and the setting are assembled.

Terminal block, Assembly type, Body, Terminal cover, Setting cover, Front cover, Sealing screw

Description

Terminal Block Assembly Type Electronic Power Meter {AN ASSEMBLY TYPE BLOCK FOR ELECTRONIC POWER METER}

1 is a perspective view of the present invention.

2 is an exploded perspective view.

3 is an enlarged view of a part of the extract of Figure 2, a perspective view of the main components of the present invention.

4 is a front view of the present invention.

5 is a cross-sectional view taken along the line A-A of FIG.

6 is an enlarged view of a part of the extract of FIG. 5;

FIG. 7 is a half sectional perspective view showing a cross-sectional state of the terminal block of FIG. 6 in detail. FIG.

8 is a perspective view of a terminal block which is a main component of the present invention.

9 is a longitudinal sectional view taken along the line B-B in FIG. 8;

10 is a cross-sectional perspective view taken along the line C-C of FIG.

Figure 11 is a cross-sectional exploded perspective view of the terminal block of the main component of the present invention.

** Explanation of symbols for main parts of drawings **

10: body 11, 12, 13, 15: screw assembly rod

14: binding piece 16: coupling step

20: Front cover 25: Display window

30: terminal block 31: terminal assembly groove

32: wire insertion hole 33: screw assembly groove

34: fastening groove 35a, 35b: screw assembly hole

36: step 36a: oring groove

37: screw assembly rod 38: protrusion frame

39: protrusion 40: O-ring

41: blocking wall 55: setting part cover

B1 to B4: Sealing screw S: Screw

The present invention relates to a low-voltage single-phase electronic electricity meter, and more specifically, the maximum allowable capacity of the current used according to the application of the terminal (terminal) assembled into a terminal block formed of a single block body and assembled therein is 40A and The present invention relates to a terminal block-mounted electronic watt-hour meter that can be used as an electronic watt-hour meter of 120 A, thereby reducing manufacturing costs and improving productivity due to assembly convenience of components.

In general, houses, apartments and buildings, factories are installed electricity meters to measure the power consumption, these electricity meters are divided into mechanical meters and electronic meters.

Electronic electricity meters have a mechanically movable portion compared to mechanically inductive energy meters, and thus have high reliability, stable reading, and miniaturization through integration of circuits.

The electronic electricity meter is composed of a body, a front cover, a terminal block and a terminal cover.

The structure of the electronic electricity meter has a drawback in that the maximum allowable capacity used as a product in which the body and the terminal block are integrated is manufactured by different molds for the manufacture of the electricity meter of 40A and 120A, resulting in excessive mold cost and high manufacturing costs.

In addition, the manufacturing process of the product is a method of assembling the printed board and the terminal (terminal) inside the injection molding, which takes a lot of assembly time, the productivity is reduced, and the poor assembly of the terminal was an uneconomical disadvantage due to the failure of the entire electricity meter.

Moreover, due to the complicated structure of the assembly of the terminal part, the waste of materials due to the molding failure is large, and thus the economical disadvantage is large.

The present invention is devised to effectively solve the disadvantages of the prior art as described above,

The present invention consists of a terminal block separately molded in the body to increase the productivity by minimizing the assembly work, and by applying the terminal assembled in a single terminal block can be manufactured a power meter of 40A and 120A to reduce the mold cost And to provide a terminal block assembly type electronic watt-hour meter that can reduce the manufacturing cost by minimizing the injection cost.

In addition, the present invention aims to provide a terminal block assembly type electric power meter which can realize high quality products while reducing material waste by minimizing the defective rate of injection molding by simplifying the mold structure by separately forming the body and the terminal block. .

The terminal block assembly type electronic wattmeter of the present invention,

The body (base) on which the Current Transformer is mounted and the maximum allowable capacity of the current used are 40A and 120A terminals and terminal blocks into which auxiliary terminals are inserted. The front cover to protect and the terminal cover to prevent the change of the setting of the terminal, the internal program and the setting part cover to prevent the setting change is characterized in that the assembly type.

Hereinafter, a detailed embodiment of the present invention will be described in detail with reference to the accompanying drawings.

1 is a perspective view showing the appearance of the assembled state of the present invention, Figures 2 and 3 is an exploded perspective view and an extract enlarged view of the present invention.

According to Figure 1, the assembled electronic electricity meter of the present invention includes a conventional component of the body 10 and the front cover 20, the terminal block 30 and the terminal cover 50.

2 and 3, a main circuit board 60 and a liquid crystal panel 65 for calculating and displaying power consumption are assembled in the body 10, and a liquid crystal panel 65 is mounted on the front cover 20. The display window 25 that can check the number displayed on the outside is assembled.

And the terminal block 30 is assembled in the lower portion of the body 10, the front cover 20 is assembled on the front of the body 10, the setting portion cover 55 is assembled on the upper portion of the front cover, the lower The terminal block 30 is assembled in the terminal cover 50 is assembled on the front.

As shown in Figure 4, the front cover 20 and the set portion cover 55, as shown in detail in the exploded perspective view of Figures 3 and 4, the coupling screw rod protruding integrally to the inner edge of the body 10 ( 11, 12, and 13 are assembled by sealing screws B1, B2, and B3.

As shown in FIGS. 3, 5, 6, and 11, the assembled terminal block 30 is a unit of an injection molding, and the terminal assembly groove 31 and the wire insertion hole 32 of the lower surface are formed on the upper surface thereof. Input side terminals IT-1 and IT-2 to which the input power lines I-1 and I-2 are connected and vertically formed in the vertical direction to which the load power lines L-1 and L-2 are connected. The terminal assembly grooves (PT-1, PT-2) to which the terminals (LT-1, LT-2) and the auxiliary power lines (P-1, P-2) are connected by crimp insertion are assembled. 31) through the screw assembly groove 33 penetrating in the horizontal direction from the front to the power line is assembled to each terminal by screwing the screw (S) and is assembled to the lower portion of the body (10).

The terminal block 30 has a binding groove 34 seated on the binding piece 14 protruded in a horizontal direction integrally with the body 10 in the center of the upper surface is formed screw (S) in the lower side of the body 10 Screwed together).

At this time, the binding groove 34 has a screw groove in which the screw S assembled in the binding piece 14 is assembled to a predetermined depth in the vertical direction.

In addition, as shown in detail in FIG. 7, the terminal block 30 has a pair of screw assembly holes 35a and 35b penetrated from the front center to the rear of the body 10 by screws S assembled therethrough. Screw assembly with the upper screw assembly hole (35a) is assembled with a screw (S) in a state of being fitted with a screw assembly rod 15 protruding integrally formed in the body 10 is provided with a rigid coupling.

At this time, the terminal block 30 is fitted with the coupling step 16 protruding from the inner surface of the body 10, that is, the left, right and rear sides of the frame-shaped stepped projection 36 is connected to the left, rear and rear surfaces. Bonded by the coupling, the lower O-ring groove (36a) formed by the step 36 is coupled with the O-ring 40 is interposed to provide a structure of airtight coupling (see enlarged view of FIG. 6).

In addition, the terminal block 30 is a screw assembly rod 37 protrudes in the center of the front surface, the screw assembly rod and the terminal cover 50 is bound by a sealing screw (B4).

At this time, the terminal block 30 has a protruding frame 38 and a protruding piece 39 protruding from the upper surface thereof in the form of a frame of a closed connection ring on the front side thereof, corresponding to the front cover 20 and the terminal. A rigid assembly structure is provided by engaging the grooves 21 and 51 formed in the cover 50.

Meanwhile, between the terminal assembly groove 31 and the terminal assembly groove 31 of the terminal block 30, a blocking wall 41 protrudes in the vertical direction to insulate between the terminals to be assembled.

One side of the input terminal IT-2 and the output side terminal LT-1 assembled in these terminal assembly grooves 31 are connected by the connecting terminal 42, and the other input side terminal IT-1 and the output side terminal LT -2) is connected by an electric wire (not shown), and the electric wire is electrically connected to the current transformer (not shown) and the main circuit board 60.

At this time, the connection terminal 42 is formed in the shape of a hook-type hook for ease of connection and separation operation.

This electrical connection configuration is omitted because it is a general electrical connection configuration of the electronic electricity meter.

In addition, the terminal block 30, as shown in Figure 9 and 10, the test terminal groove 43 is formed in the vertical direction between the terminal assembly groove 31 to the upper one side, the test terminal 44 is inserted, The test connection terminal groove 45 is formed in the horizontal direction from the front side, and the test terminal connection piece 46 is inserted, and one side of the test terminal 43 is connected and connected by a screw S, and the other side is connected to the input terminal (IT / 2) and hook-type hook to connect as needed.

The present invention, the body 10, the front cover 20, each of the terminal cover 50 and the terminal block 30 is provided in a male and female coupling structure can not be separated without opening (removing) each member After assembling the finished product, reliability is ensured, and in particular, an O-ring groove 36a is formed on the side and the rear surface (rear) of the terminal block 30 and is provided in an airtight structure by the O-ring 40 to prevent penetration of moisture and dust. can do.

And each terminal (IT-1, IT-2) (LT-1, LT-2) (PT-1, PT-2) assembled in the terminal assembly groove 31 formed in the terminal block 30 is a press method By assembling by forcibly fitting by using the structure that each terminal is not separated by adopting the body 10 and the work time according to the assembly is drastically reduced.

In addition, the maximum allowable capacity of the current used in accordance with the application of the terminals can produce the product of the electronic wattmeter of 40A and 120A in a single mold, bringing economic advantages.

As described in detail above, the terminal block-assembly-type electronic watt-hour meter of the present invention assembles the terminal block according to the maximum allowable capacity of the current, and configures the body and the assembled type by using a single mold to measure the power of 40A and 120A. It can produce a very economic effect.

In particular, by assembling the terminal block with the terminal assembled into the body as a unit, the assembly work is convenient and shortened to bring a great productivity effect.

Claims (7)

The body (base) on which the Current Transformer, etc. are seated, and the maximum allowable capacity of the used current are 40A and 120A terminals, and the terminal block into which the auxiliary terminals are inserted is integrally formed. In the electronic watt-hour meter comprising a front cover and a terminal cover to prevent the setting change of the terminal, the internal program and the setting cover to prevent the setting change, The terminal block is composed of an assembly separate from the body and the terminal block assembly type electronic wattmeter, characterized in that the maximum allowable capacity of the current used by the application of the terminal assembled therein can be used as an electronic wattmeter of 40A and 120A. The method of claim 1, wherein the terminal block, As a unit of injection molding, the terminal assembly groove and the wire insertion hole of the lower surface are formed through the upper surface in the vertical direction, respectively, so that the input terminal connected to the input power line and the output terminal connected to the load power line and the auxiliary power line are connected. Auxiliary terminals are assembled by crimp insertion, and the power wires assembled at each terminal are fastened to each terminal assembly groove through screw assembly grooves penetrated horizontally from the front side by screwing screws and assembled at the bottom of the body. Terminal block assembly type electronic electricity meter, characterized in that. The method of claim 1 or 2, wherein the terminal block, In the center of the upper surface is formed a binding groove which is seated on the binding piece protruded in the horizontal direction integrally with the body is assembled by screw assembly on the lower side of the body, A pair of screw assembly holes penetrate from the front center to the rear, and are assembled with the body by screws that are assembled through the screws.The upper screw assembly holes are assembled with screws with the screw assembly rod protruding integrally into the body. Terminal block assembly type electronic wattmeter, characterized in that. The method of claim 3, wherein the terminal block, The ledge of the rim connected to the left and rear sides and the rear side is protruded, and is coupled to the inner surface of the body, that is, the engagement step protruding from the inner side of the left, right and rear sides, The lower O-ring groove is formed by the stepped terminal block assembly type electronic wattmeter, characterized in that the connection portion is assembled with an O-ring interposed having an airtight structure. The method of claim 1 or 2, wherein the terminal block, The screw assembly rod protrudes in the center of the front surface, and this screw assembly rod and the terminal cover are bound by the sealing screw. The terminal block assembly type, characterized in that the protruding frame and the protruding piece protrudes on the upper part of the frame in the form of a frame of the closed connection ring on the front side to correspond to them and is assembled into a groove formed in the front cover and the terminal cover. Electronic meter. The method of claim 1 or 2, wherein the terminal block, A terminal block assembly type electric power meter, characterized in that a barrier wall protrudes in a vertical direction for insulation between terminals. The method of claim 1 or 2, wherein the terminal block, The test terminal groove is formed in the vertical direction between the terminal assembly grooves on the upper side to assemble the test terminal, and the test terminal groove is molded in the horizontal direction on the front side to insert the test terminal connection piece and connect the test terminal and one side by screw. However, the other side of the terminal block assembly type electric power meter, characterized in that configured to be connected to the input terminal and the need.

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