CN104517365B - A kind of guide tracked three-phase prepayment electric energy meter - Google Patents

Abstract

The invention relates to a guide rail type three-phase prepaid electric energy meter, comprising an upper case assembly, a circuit board, a terminal assembly, a transformer and a lower case assembly, the upper case assembly and the lower case assembly are connected to form a hollow shell, the The circuit board, terminal assembly, and transformer are all arranged in the hollow housing, and the terminal assembly is respectively connected to the circuit board and the transformer. The terminal assembly includes a terminal block, a terminal block baffle, a manganin sheet and a wiring The terminal block is connected to the transformer through the terminal block baffle, one end of the manganin sheet is connected to the transformer, and the other end is connected to the terminal block through a terminal block, and the upper shell assembly includes a prepaid card card slot. Compared with the prior art, the present invention has the advantages of simple and compact structure, high assembly efficiency, safety and reliability, and the like.

Description

A guide rail type three-phase prepaid electric energy meter

technical field

The invention relates to a structure of a prepaid electric energy meter, in particular to a guide rail type three-phase prepaid electric energy meter.

Background technique

At present, most of the domestic prepaid energy meters are one-way wall-mounted or electrical cabinet-mounted, and the appearance is basically rectangular, and the volume is relatively large (the product is relatively small in size and has few functions). There are two ways to pre-store electricity charges in prepaid energy meters: one is to use electronic cards, namely IC cards, and the other is to use code input. Either way requires a pre-charged feed-in system and built-in circuit breakers, resulting in a larger meter. As disclosed in the Chinese patent CN2300107, "an electric card prepaid electric energy meter box" includes a box shell, an electric meter frame for installing an electric meter arranged on the box shell, and an electric meter box panel arranged on the front part of the box shell. An electric meter reading window is arranged on the electric meter box panel, and an electric card socket is provided on the side of the electric meter reading window on the electric meter box panel, and an electric card socket door is arranged at the electric card socket, and the electric card The socket door is movably connected with the electric meter box panel, and the electric card socket door lock is locked between the electric card socket door and the electric meter box panel. The electric energy meter is convenient for inserting the electric card, and has good safety when the electric card is not inserted, but the electric energy meter occupies a large space.

The existing prepaid electric energy meters are all mounted on the wall, which is not only cumbersome to install, but also has a large volume. When they are installed in a centralized manner, the space requirements are relatively high. The three-phase electric energy meter installed on the guide rail has no prepayment function.

Contents of the invention

The object of the present invention is to provide a guide rail type three-phase prepaid electric energy meter with simple and compact structure, high assembly efficiency, safety and reliability in order to overcome the above-mentioned defects in the prior art.

The purpose of the present invention can be achieved through the following technical solutions:

A guide rail type three-phase prepaid electric energy meter, including an upper case assembly, a circuit board, a terminal assembly, a transformer and a lower case assembly, the upper case assembly and the lower case assembly are connected to form a hollow shell, and the circuit The board, the terminal assembly and the transformer are all arranged in the hollow shell, and the terminal assembly is connected to the circuit board and the transformer respectively. The terminal base is connected to the transformer through the terminal base baffle plate, one end of the manganin sheet is connected to the transformer, and the other end is connected to the terminal base through a terminal post, and the upper shell assembly includes a prepaid card slot .

The terminal base baffle includes connected terminal base fixing parts and transformer fixing grooves, and the transformer is connected to the transformer fixing grooves.

The terminal base fixing part is provided with a plurality of slots matching the terminal base, and the terminal base fixing part is connected to the terminal base through buckling.

The terminal base includes a primary access type terminal base or a secondary access type terminal base.

The binding post is connected with the terminal base through screws.

The upper shell assembly includes an upper shell, an upper flip cover, a face cover, a panel and a lower flip cover. The cross section of the upper shell is in a "convex" shape, and the middle part of the upper shell is a hollow structure. The outer end is sequentially connected to the panel, the face cover and the upper flip cover, the lower flip cover is arranged on the lower part of the upper casing, the prepaid card slot is arranged on the panel, and the front cover is provided with a prepaid card. The through hole corresponding to the card slot.

The flip-up cover is a flip-down cover, and the lower part of the flip-up cover is fixedly connected with the upper casing.

The lower case assembly includes a lower case and a sliding piece, the lower case is connected to the upper case through self-tapping screws, the sliding piece is connected to the bottom of the lower case through buckles, and the lower case Connect to the terminal block.

The circuit board includes a card board, a display board and a base plate, and the card board passes through the base board, the display board and the panel in sequence, and the card board is provided with a card slot corresponding to the prepaid card. The card slot, the bottom plate is connected with the lower case.

The terminal base is connected with a connection terminal for connecting a prepaid circuit breaker.

Compared with the prior art, the present invention has the following advantages:

1. Terminal seat separation structure design: the primary access and the secondary access adopt different terminal seat structure designs, share the same shell, and ensure the internal safety distance while making the shell structure more versatile and modular, reducing the number of molds Quantity, reduce product cost.

2. Combined terminal block design: The terminal block and terminal block baffle are fixed together by buckles. The overall structure is simple and compact, and the terminal installation and disassembly are extremely convenient, which greatly improves the efficiency of production and assembly, and is more convenient for users to maintain and use.

3. Innovation in the structure of the terminal block baffle: The installation and positioning structure of the transformer is added to the terminal block baffle, which makes the installation of the transformer more convenient and reliable, and solves the problem of difficult installation and positioning of the transformer of the electric energy meter in the past and the problem of shaking in the housing.

4. The flip-up cover adopts the flip-down format: the flip-up cover is designed with transparent materials, which does not affect the user's on-site viewing of the display information of the meter, and can improve the protection level of the meter, and adopts the flip-down format, which is more convenient for users to operate.

5. User-friendly design of card slot: The card slot is located above the operation buttons, which is more convenient for users to operate.

6. Terminal output matching with prepaid circuit breaker: it can help fast interconnection with prepaid circuit breaker.

7. Unique prepaid media interaction interface: It is convenient to enter information through the prepaid card slot, and realize the management of electricity sales and consumption without communication.

Description of drawings

Fig. 1 is the exploded schematic view of structural parts of the present invention;

Fig. 2 is a schematic sectional view of the present invention;

Fig. 3 is a schematic structural diagram of a terminal housing of the present invention;

Fig. 4(a) is a schematic diagram of cooperation between the lower housing and the terminal seat when the present invention is connected once;

Fig. 4(b) is a schematic diagram of the cooperation between the lower housing and the terminal seat during the secondary access of the present invention

Fig. 5 is a schematic diagram of the combined design and assembly of the terminal block of the present invention;

Fig. 6 is a schematic diagram of a positioning structure for adding a transformer to the terminal base of the present invention;

Fig. 7 is a schematic diagram of the structure of the upper flip and the lower flip of the present invention;

Fig. 8 is a schematic diagram of the location of the card slot in the present invention.

In the figure, 1. Top cover, 2. Front cover, 3. Panel, 4. Self-tapping screws, 5. Upper case, 6. M4 screws, 7. Card board, 8. Display board, 9. Bottom board, 10 , Lower shell, 11, Sliding sheet, 12, Terminal block baffle, 13 Terminal block, 14, Transformer, 15, Manganese copper sheet, 16, Terminal post, 17, M6 screw, 18, Lower flip cover, 19, Mutual inductance Device fixing slot, 20, prepaid card slot.

detailed description

The present invention will be described in detail below in conjunction with the accompanying drawings and specific embodiments. This embodiment is carried out on the premise of the technical solution of the present invention, and detailed implementation and specific operation process are given, but the protection scope of the present invention is not limited to the following embodiments.

As shown in Figures 1-3, a guide rail type three-phase prepaid electric energy meter includes an upper shell assembly, a circuit board, a terminal assembly, a transformer 14 and a lower shell assembly, and the upper shell assembly and the lower shell assembly are connected to form a hollow The housing, the circuit board, the terminal assembly and the transformer 14 are all arranged in the hollow casing, and the terminal assembly is connected to the circuit board and the transformer 14 respectively. Column 16, terminal block 13 is connected with transformer 14 through terminal block baffle plate 12, one end of manganin sheet 15 is connected with transformer 14 through M4 screw 6, and the other end is connected with terminal block 13 through terminal block 16, and the upper shell assembly includes Prepaid card slot 20.

As shown in Figures 5-6, the terminal block baffle 12 includes a connected terminal block fixing piece and a transformer fixing groove 19, the transformer 14 is connected to the transformer fixing groove 19, and the terminal block fixing piece is provided with multiple a card slot matched with the terminal base 13, and the terminal base fixing part is connected with the terminal base 13 through buckling. The terminal post 16 is connected to the terminal base 13 through an M6 screw 17 .

The terminal block 13 includes a primary access type terminal block or a secondary access type terminal block, as shown in Figure 4(a) is a schematic diagram of the cooperation between the lower housing and the terminal block during primary access, as shown in Figure 4(b) It is a schematic diagram of the cooperation between the lower housing and the terminal base during secondary access. The primary access and secondary access adopt different terminal block structure designs, but share the same shell, which ensures the internal safety distance and makes the shell structure more versatile and modular, reducing the number of molds and reducing product costs.

The upper shell assembly includes an upper shell 5, an upper flip cover 1, a face cover 2, a panel 3 and a lower flip cover 18. The cross section of the upper shell 5 is in a "convex" shape, and the middle part of the upper shell 5 is a hollow structure. The outer end of the hollow structure is connected to the panel 3, the face cover 2 and the upper flip cover 1 in turn, and the lower flip cover 18 is arranged at the bottom of the upper casing 5, as shown in Figure 8, the panel 3 is provided with operation buttons for inserting the prepaid card The bayonet 20 is located on the panel 3 and is located above the operation buttons,

It is more convenient for users to operate. The face cover 2 is provided with a through hole corresponding to the prepaid card insertion port 20 . As shown in FIG. 7 , the upper flip cover 1 is a flip-down cover plate, and the lower part of the upper flip cover 1 is fixedly connected with the upper casing 5 , which is more convenient for user-friendly operation. Arrows in Fig. 7 indicate the direction of movement of the upper flap. The upper flip cover 1 is designed with transparent materials, which does not affect the user's on-site viewing of the display information of the meter, and can also improve the protection level of the meter.

The lower case assembly includes a lower case 10 and a sliding piece 11, the lower case 10 is connected to the upper case 5 through a self-tapping screw 4, the sliding piece 11 is connected to the bottom of the lower case 10 by a buckle, and the lower case 10 is connected to the bottom of the lower case 10. The terminal base 13 is connected, and the back of the lower housing 10 is provided with a 35mm standard guide groove for installation on a standard guide rail.

Described circuit board comprises card inserting plate 7, display board 8 and base plate 9, and inserting card plate 7 passes through base plate 9, display plate 8 and panel 3 successively and is connected, and inserting card plate 7 is provided with prepaid card inserting port 20 corresponding to the card slot, the bottom plate 9 is connected with the lower case 10 .

The terminal block 13 is connected with a connection terminal for connecting the prepaid circuit breaker, which can help to quickly interconnect with the prepaid circuit breaker.

The electric energy meter adopts an innovative structural optimization design and realizes DIN35 (35mm) standard rail installation. This product includes a prepaid function. The application occasions of the product broaden the scope of application of the product.

Claims (9)

1. A guide rail type three-phase prepaid electric energy meter, comprising an upper case assembly, a circuit board, a terminal assembly, a transformer (14) and a lower case assembly, and the described upper case assembly and the lower case assembly are connected to form a hollow housing , the circuit board, the terminal assembly, and the transformer (14) are all arranged in the hollow housing, and the terminal assembly is connected to the circuit board and the transformer (14) respectively, and it is characterized in that the terminal assembly includes a terminal Block (13), terminal block baffle (12), manganese copper sheet (15) and binding post (16), described terminal block (13) is connected with transformer (14) by terminal block baffle (12), One end of the manganese-copper sheet (15) is connected to the transformer (14), and the other end is connected to the terminal block (13) through a binding post (16), and the upper shell assembly includes a prepaid card slot (20 ); The upper shell assembly includes an upper shell (5), an upper flip cover (1), a face cover (2), a panel (3) and a lower flip cover (18), and the cross section of the upper shell (5) is "Convex" shape, the middle part of the upper casing (5) is a hollow structure, the outer end of the hollow structure is connected to the panel (3), the face cover (2) and the upper flip (1) in sequence, and the lower flip (18) ) is located at the bottom of the upper housing (5), the described prepaid card card slot (20) is located on the panel (3), and the described face cover (2) is provided with the prepaid card card slot ( 20) Corresponding through holes. 2. A guide-rail type three-phase prepaid electric energy meter according to claim 1, characterized in that, the terminal block baffle (12) includes a connected terminal block fixing piece and a transformer fixing groove (19 ), the transformer (14) is connected with the transformer fixing groove (19). 3. A guide-rail type three-phase prepaid electric energy meter according to claim 1, characterized in that, said terminal base fixing part is provided with a plurality of card slots matching with the terminal base (13), and the terminal base The fixing piece is connected with the terminal base (13) through buckling. 4. A guide-rail type three-phase prepaid electric energy meter according to claim 1, characterized in that, said terminal base (13) comprises a primary access type terminal base or a secondary access type terminal base. 5. A guide-rail type three-phase prepaid electric energy meter according to claim 1, characterized in that, the terminal block (16) is connected to the terminal base (13) through screws (17). 6. A guide-rail type three-phase prepaid electric energy meter according to claim 1, characterized in that, the flip-up cover (1) is a flip-down cover plate, and the lower part of the flip-up cover (1) and the upper casing (5) Fixed connection. 7. A kind of guide rail type three-phase prepayment electric energy meter according to claim 1, is characterized in that, described lower casing assembly comprises lower casing (10) and sliding sheet (11), and described lower casing (10) is connected with the upper casing (5) by self-tapping screws (4), the sliding piece (11) is connected to the bottom of the lower casing (10) by a buckle, and the lower casing (10) is connected to the terminal Seat (13) is connected. 8. A guide-rail type three-phase prepaid electric energy meter according to claim 7, characterized in that, said circuit board comprises a plug-in board (7), a display board (8) and a base plate (9), said The card inserting board (7) passes through the bottom plate (9), the display board (8) and the panel (3) in turn to connect, and the described card inserting board (7) is provided with the card slot (20) corresponding to the prepaid card The card slot, the bottom plate (9) is connected with the lower casing (10). 9. A guide-rail type three-phase prepaid electric energy meter according to claim 1, characterized in that, the terminal base (13) is connected with a terminal for connecting a prepaid circuit breaker.