A meter bottom capable of positioning relays and mutual inductors and an electric meter using the same

Abstract

The present invention provides a meter bottom capable of positioning a relay and a transformer and an electric meter using the meter bottom, comprising: a bottom shell; a terminal seat fixed on the bottom shell, the terminal seat having a first and a second wiring terminal; a relay baffle provided on the bottom shell to stop the square body of the relay and locate its position; a transformer support provided on the bottom shell to support and contact with the cylindrical surface of the cylindrical body of the transformer; a transformer baffle provided on the bottom shell to stop the cylindrical surface of the cylindrical body; a containing structure provided on the terminal seat, the containing structure cooperates with the transformer support and the transformer baffle to locate the position of the cylindrical body. Beneficial effects: the relay baffle realizes the positioning of the relay, the transformer support, the transformer baffle and the containing structure realize the positioning of the transformer, and it is convenient to realize the screw connection between the relay terminal and the first wiring terminal and the screw connection between the transformer terminal and the second wiring terminal by means of a machine, thereby reducing the workload and labor intensity of manual assembly.

Description

Technical Field

[0001] The invention relates to the technical field of electric meters, in particular to a meter bottom capable of positioning a relay and a mutual inductor and an electric meter using the meter bottom. Background Art

[0002] Smart meters are widely used in households, enterprises and institutions, with a huge amount of usage, and the market demand is more than 10 million units per year. There are about 60 processes involved in the production of smart meters, one of which is the assembly of relays and transformers. The structure of the relay is shown in the attached figure. Figure 1 As shown in FIG. 1 , the relay 1 includes a square body 11 and two relay terminals 12 connected to the square body 11. The structure of the mutual inductor is shown in FIG. Figure 2 As shown, the transformer 2 includes a cylindrical body 21 and transformer terminals 22 connected to both end surfaces of the cylindrical body 21 . In addition, a lead wire 23 is also connected to the cylindrical body 21 .

[0003] When assembling the relay and the transformer, the relay and the transformer need to be installed on the bottom of the meter. The bottom of the meter includes a bottom shell and a terminal block fixed on the bottom shell. The terminal block has a first terminal for connecting with two relay terminals of the relay and a second terminal for connecting with two transformer terminals of the transformer. When assembling, firstly, the relay and the transformer need to be manually placed in the correct position on the bottom shell of the meter, and then a screwdriver is used to screw the screws on the relay terminal and the first terminal, and the transformer terminal and the second terminal to achieve their connection.

[0004] Since the production of electric meters is a mass production, the above process has a huge workload, great labor intensity, and quality requirements. If the torque of the screwdriver is not enough, the electric meter is prone to fire due to poor contact during operation. Therefore, it is imperative to use machines to replace manual automatic screw installation. However, automatic screw installation requires accurate positioning of relays and transformers. Only when the positioning is correct can the screws be automatically assembled. At present, there is a lack of a meter bottom that can position relays and transformers. Summary of the invention

[0005] The object of the present invention is to provide a meter bottom capable of positioning relays and mutual inductors so as to realize automatic installation of screws by means of a machine; the object of the present invention is also to provide an electric meter capable of reducing the workload and labor intensity of manual assembly.

[0006] To achieve the above purpose, the bottom of the table capable of positioning the relay and the mutual inductor in the present invention adopts the following technical solution:

[0007] A meter bottom capable of positioning a relay and a transformer, comprising:

[0008] Bottom shell;

[0009] A terminal seat is fixed on the bottom shell, and has a first wiring terminal for connecting with two relay terminals of the relay, and also has a second wiring terminal for connecting with two transformer terminals of the transformer;

[0010] The bottom of the meter for positioning relays and transformers also includes:

[0011] A relay baffle is arranged on the bottom shell, and is used to block the side of the square body of the relay and locate the position of the square body;

[0012] A transformer support, arranged on the bottom shell, the transformer support is used to support and contact with the cylindrical surface of the cylindrical body of the transformer; and / or

[0013] A transformer baffle is arranged on the bottom shell, and the transformer baffle is used to stop and cooperate with the cylindrical surface of the cylindrical body of the transformer;

[0014] Among them, a accommodating structure for accommodating a part of the columnar body of the transformer is provided on the terminal seat, and the accommodating structure cooperates with the transformer support and / or the transformer baffle to locate the position of the columnar body so that the transformer terminal can be aligned with the second terminal.

[0015] The beneficial effects of the above technical solution are: the relay baffle arranged on the bottom shell can block the side of the square body of the relay, so as to prevent the relay from moving, and the relay baffle can locate the position of the square body, so as to ensure that the relay terminal and the first terminal can correspond to each other, thereby facilitating the automatic installation of the screws with the help of a machine; at the same time, the transformer support and / or the transformer baffle arranged on the bottom shell can support the cylindrical surface of the cylindrical body of the transformer, and / or cooperate with the cylindrical surface of the cylindrical body of the transformer, and the transformer support and / or the transformer baffle cooperate with the accommodating structure arranged on the terminal seat, which can locate the position of the cylindrical body so that the transformer terminal can be aligned with the second terminal, thereby facilitating the automatic installation of the screws with the help of a machine.

[0016] In summary, the positioning of the relay is achieved by arranging a relay baffle on the bottom shell. In addition, the positioning of the transformer is achieved by arranging a transformer support and / or a transformer baffle on the bottom shell and arranging a accommodating structure on the terminal seat to cooperate therewith. This makes it possible to conveniently use a machine to achieve the screw connection between the relay terminal and the first terminal, and the screw connection between the transformer terminal and the second terminal, thereby reducing the workload and labor intensity of manual assembly. The torque of the machine assembly is easy to control, and the assembly quality is high.

[0017] Furthermore, in order to facilitate the positioning of the relay without affecting the screw connection between the relay terminal and the first terminal, there are three relay baffles, which are respectively used to block the three sides of the square body of the relay, and the three relay baffles form a U-shaped cavity with an opening facing the first terminal.

[0018] Furthermore, in order to support the relay and dissipate heat for the relay, at least two relay support plates for supporting the square body of the relay are provided on the bottom shell, and two adjacent relay support plates are spaced apart to form a heat dissipation interval.

[0019] Furthermore, in order to facilitate the manufacture of the transformer support and dissipate heat from the transformer, the transformer support is a transformer support frame, which includes at least two transformer support plates arranged at intervals and a connecting plate connecting the transformer support plates, and the supporting surface of the transformer support plate for contacting the transformer support is an inclined surface.

[0020] Furthermore, in order to ensure stable support of the transformer, the accommodation structure is an arc-shaped accommodation groove that contacts and fits with the cylindrical body of the transformer.

[0021] Furthermore, in order to facilitate the fixing of the leads of the transformer, the bottom of the table for positioning the relay and the transformer also includes a lead plate arranged on the bottom shell, the lead plate is used to position the leads of the transformer, and a wire clamping groove is arranged on the lead plate.

[0022] To achieve the above purpose, the electric meter in the present invention adopts the following technical solutions:

[0023] An electric meter includes a relay, a mutual inductor, and a meter bottom capable of positioning the relay and the mutual inductor. The meter bottom capable of positioning the relay and the mutual inductor includes:

[0024] Bottom shell;

[0025] A terminal seat is fixed on the bottom shell, and has a first wiring terminal for connecting with two relay terminals of the relay, and also has a second wiring terminal for connecting with two transformer terminals of the transformer;

[0026] The bottom of the meter for positioning relays and transformers also includes:

[0027] A relay baffle is arranged on the bottom shell, and is used to block the side of the square body of the relay and locate the position of the square body;

[0028] A transformer support, arranged on the bottom shell, the transformer support is used to support and contact with the cylindrical surface of the cylindrical body of the transformer; and / or

[0029] A transformer baffle is arranged on the bottom shell, and the transformer baffle is used to stop and cooperate with the cylindrical surface of the cylindrical body of the transformer;

[0030] Among them, a accommodating structure for accommodating a part of the columnar body of the transformer is provided on the terminal seat, and the accommodating structure cooperates with the transformer support and / or the transformer baffle to locate the position of the columnar body so that the transformer terminal can be aligned with the second terminal.

[0031] The beneficial effects of the above technical solution are: the relay baffle arranged on the bottom shell can block the side of the square body of the relay, so as to prevent the relay from moving, and the relay baffle can locate the position of the square body, so as to ensure that the relay terminal and the first terminal can correspond to each other, thereby facilitating the automatic installation of the screws with the help of a machine; at the same time, the transformer support and / or the transformer baffle arranged on the bottom shell can support the cylindrical surface of the cylindrical body of the transformer, and / or cooperate with the cylindrical surface of the cylindrical body of the transformer, and the transformer support and / or the transformer baffle cooperate with the accommodating structure arranged on the terminal seat, which can locate the position of the cylindrical body so that the transformer terminal can be aligned with the second terminal, thereby facilitating the automatic installation of the screws with the help of a machine.

[0032] In summary, the positioning of the relay is achieved by arranging a relay baffle on the bottom shell. In addition, the positioning of the transformer is achieved by arranging a transformer support and / or a transformer baffle on the bottom shell and arranging a accommodating structure on the terminal seat to cooperate therewith. This makes it possible to conveniently use a machine to achieve the screw connection between the relay terminal and the first terminal, and the screw connection between the transformer terminal and the second terminal, thereby reducing the workload and labor intensity of manual assembly. The torque of the machine assembly is easy to control, and the assembly quality is high.

[0033] Furthermore, in order to facilitate the positioning of the relay without affecting the screw connection between the relay terminal and the first terminal, there are three relay baffles, which are respectively used to block the three sides of the square body of the relay, and the three relay baffles form a U-shaped cavity with an opening facing the first terminal.

[0034] Furthermore, in order to support the relay and dissipate heat for the relay, at least two relay support plates for supporting the square body of the relay are provided on the bottom shell, and two adjacent relay support plates are spaced apart to form a heat dissipation interval.

[0035] Furthermore, in order to facilitate the manufacture of the transformer support and dissipate heat from the transformer, the transformer support is a transformer support frame, which includes at least two transformer support plates arranged at intervals and a connecting plate connecting the transformer support plates, and the supporting surface of the transformer support plate for contacting the transformer support is an inclined surface.

[0036] Furthermore, in order to ensure stable support of the transformer, the accommodation structure is an arc-shaped accommodation groove that contacts and fits with the cylindrical body of the transformer.

[0037] Furthermore, in order to facilitate the fixing of the leads of the transformer, the bottom of the table for positioning the relay and the transformer also includes a lead plate arranged on the bottom shell, the lead plate is used to position the leads of the transformer, and a wire clamping groove is arranged on the lead plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0038] Figure 1 It is a structural schematic diagram of a relay in the prior art;

[0039] Figure 2 It is a structural schematic diagram of a mutual inductor in the prior art;

[0040] Figure 3 for Figure 2 Left view of;

[0041] Figure 4 It is a top view structural schematic diagram of the bottom of the meter that can position the relay and the mutual inductor in the present invention;

[0042] Figure 5 for Figure 4 A side view of the middle lead plate;

[0043] Figure 6 for Figure 4 Schematic diagram of a partial side view of the bottom of the meter when positioning the transformer.

[0044] In the figure: 1-relay; 11-square body; 12-relay terminal; 2-transformer; 21-columnar body; 22-transformer terminal; 23-lead; 3-bottom shell; 4-lead plate; 41-clip groove; 5-transformer baffle; 6-transformer support frame; 7-terminal seat; 71-first terminal; 72-second terminal; 73-arc-shaped receiving groove; 8-relay baffle; 9-relay support plate. DETAILED DESCRIPTION

[0045] An embodiment of the meter bottom (hereinafter referred to as meter bottom) for positioning the relay and the mutual inductor in the present invention is as follows: Figure 4As shown, the bottom of the meter includes a bottom shell 3 and a terminal seat 7 fixed on the bottom shell 3, and the terminal seat 7 has a first terminal 71 for connecting to two relay terminals of the relay and a second terminal 72 for connecting to two transformer terminals of the transformer.

[0046] The bottom shell 3 is injection molded, and three relay baffles 8 are integrally formed on the bottom shell 3. The three relay baffles 8 are spaced apart and arranged in three directions, and the three relay baffles 8 surround a U-shaped cavity with an opening toward the first terminal 71. Three relay support plates 9 are also integrally formed on the bottom shell 3, and the three relay support plates 9 are located in the U-shaped cavity to support the square body of the relay.

[0047] Combination Figure 1 As shown, during assembly, the square body 11 of the relay 1 is placed in the U-shaped cavity and supported on three relay support plates 9, and the interval between two adjacent relay support plates 9 forms a heat dissipation interval. The three relay baffles 8 respectively block the three sides of the square body 11 to prevent it from moving to the left, right and rear, and the three relay baffles 8 can just locate the position of the relay 1, so that after the square body 11 is placed in the U-shaped cavity, the two relay terminals 12 of the relay 1 just correspond to the two first wiring terminals 71, thereby facilitating the subsequent automatic installation of screws by means of a machine.

[0048] The bottom shell 3 is also integrally formed with a lead plate 4, a transformer baffle 5 and a transformer support frame 6, and the terminal seat 7 is also injection molded. Figure 6 As shown, an arc-shaped receiving groove 73 is integrally formed on the terminal seat 7.

[0049] Combination Figure 2 , Figure 3 and Figure 6 As shown, the transformer support frame 6 is composed of three transformer support plates arranged at intervals and a connecting plate connecting each transformer support plate. The connecting plate connects the rear ends of each transformer support plate. Each transformer support plate is a right triangle, and its hypotenuse is used to support and contact with the cylindrical surface of the columnar body 21 of the transformer, that is, the supporting surface of the transformer support plate used for contacting with the transformer support is an inclined surface.

[0050] The arc-shaped receiving groove 73 constitutes a receiving structure on the terminal seat 7, which is used to receive part of the cylindrical body 21, and the arc-shaped receiving groove 73 is in contact with and fits with the cylindrical body 21, that is, the bottom of the arc-shaped receiving groove 73 supports the cylindrical surface of the cylindrical body 21, and the groove wall of the arc-shaped receiving groove 73 limits the end surface of the cylindrical body 21, thereby forming a stable support and limitation for the transformer together with the transformer support frame 6.

[0051] The transformer baffle 5 is arranged on the rear side of the transformer support frame 6, and is used to stop the maximum diameter of the cylindrical surface of the cylindrical body 21 to prevent it from rolling backward. Therefore, in this embodiment, the transformer baffle 5, the transformer support frame 6 and the arc-shaped accommodating groove 73 are used to jointly position the cylindrical body 21, so that the two transformer terminals 22 of the transformer are just aligned with the two second terminal blocks 72, which is convenient for the subsequent automatic installation of the screws with the help of a machine.

[0052] The lead plate 4 is arranged at the left rear of the transformer support frame 6 and is used to position the lead 23 of the transformer 2. Therefore, its arrangement position just corresponds to the position of the lead 23 on the transformer 2. The structure of the lead plate 4 is as follows: Figure 5 As shown, the lead plate 4 is provided with a wire clamping groove 41 for clamping the lead wire 23 .

[0053] By adopting the table bottom of the present invention, when assembling the relay and the transformer, it is only necessary to place the relay on the three relay support plates 9, and the relay can be positioned through the relay baffle 8, so that the transformer terminal is aligned with the first terminal 71; in addition, it is only necessary to place the transformer on the transformer support frame 6 and the arc-shaped accommodating groove 73, and the transformer can be positioned together with the transformer baffle 5, so that the transformer terminal is aligned with the second terminal 72, so that it is convenient to use the machine to realize the screw connection between the relay terminal and the first terminal, and the screw connection between the transformer terminal and the second terminal, thereby reducing the workload and labor intensity of manual assembly, and the torque of the machine assembly is easy to control, and the assembly quality is high.

[0054] In other embodiments of the bottom of the table that can position relays and transformers, the relay baffle, relay support plate, lead plate, transformer baffle, and transformer support frame may not be integrally formed with the bottom shell, but may be separately arranged and fixed to the bottom shell by bonding.

[0055] In other embodiments of the meter bottom that can be used to position the relay and the transformer, the lead plate may not be provided on the bottom shell.

[0056] In other embodiments of the meter bottom capable of positioning the relay and the transformer, the transformer support frame may also be composed of two transformer support plates and a connecting plate connecting the two transformer support plates.

[0057] In other embodiments of the bottom of the meter that can position the relay and the transformer, the transformer support frame can also be replaced by a transformer support plate with a thicker wall. The transformer support frame and the transformer support plate are both used as transformer supports.

[0058] In other embodiments of the bottom of the table that can position the relay and the transformer, the transformer support can also be a transformer support block, and an arc-shaped support groove can be set on the transformer support block, which supports the transformer together with the arc-shaped accommodating groove on the terminal seat.

[0059] In other embodiments of the bottom of the table that can position relays and transformers, the accommodating structure on the terminal seat may not be an arc-shaped accommodating groove, but an accommodating groove with an inclined bottom. The bottom inclined surface of the accommodating groove supports the transformer together with the transformer support.

[0060] In other embodiments of the bottom of the table that can position relays and transformers, the accommodating structure on the terminal seat can also be a U-shaped groove with an opening toward the transformer baffle and the transformer support. The U-shaped groove extends up and down, and the bottom of the U-shaped groove can stop the maximum diameter of the cylindrical surface of the transformer cylindrical body.

[0061] In other embodiments of the bottom of the meter capable of positioning the relays and the transformer, there may be only two relay support plates, or four or more.

[0062] In other embodiments of the bottom of the meter that can position the relay and the transformer, the relay support plate may not be provided on the bottom shell, and the relay can be directly placed on the bottom shell.

[0063] In other embodiments of the bottom of the table that can position relays and transformers, there can also be four relay baffles, which are distributed in four positions of front, back, left and right. At this time, it is necessary to set an avoidance groove for avoiding the relay terminal on the baffle facing the first terminal, that is, the front baffle, so that the relay terminal can pass through.

[0064] In other embodiments of the bottom of the table that can position the relay and the transformer, only a transformer baffle can be set on the bottom shell without a transformer support. In this case, the transformer can be directly supported on the bottom shell and positioned by the transformer baffle and the accommodating structure on the terminal seat.

[0065] In other embodiments of the bottom of the table that can position the relay and the transformer, only the transformer support can be provided on the bottom shell without the transformer baffle. In this case, the transformer is positioned only by the transformer support and the accommodating structure on the terminal seat.

[0066] An embodiment of the electric meter in the present invention is as follows: the electric meter includes a relay, a mutual inductor, and a meter bottom capable of positioning the relay and the mutual inductor, wherein the meter bottom capable of positioning the relay and the mutual inductor is the same as the meter bottom capable of positioning the relay and the mutual inductor in the above-mentioned embodiment, and will not be repeated here.

Claims

1. A meter bottom capable of positioning a relay and a mutual inductor, comprising: Bottom shell; A terminal seat is fixed on the bottom shell, and the terminal seat has a first wiring terminal for connecting with two relay terminals of the relay, and also has a second wiring terminal for connecting with two transformer terminals of the transformer; The invention is characterized in that the bottom of the meter capable of positioning the relay and the mutual inductor also includes: A relay baffle is arranged on the bottom shell, and is used to block the side of the square body of the relay and locate the position of the square body; A transformer support is arranged on the bottom shell, and the transformer support is used to support and contact with the cylindrical surface of the cylindrical body of the transformer; the transformer support includes a transformer support plate, and the support surface of the transformer support plate used for contacting with the transformer support is an inclined surface; A transformer baffle is arranged on the bottom shell, and the transformer baffle is used to stop and cooperate with the cylindrical surface of the cylindrical body of the transformer; Among them, the terminal seat is provided with a accommodating structure for accommodating a part of the columnar body of the transformer. The accommodating structure is an arc-shaped accommodating groove. The accommodating structure cooperates with the transformer support and the transformer baffle to locate the position of the columnar body so that the transformer terminal can be aligned with the second terminal.

2. The meter bottom capable of positioning relays and mutual inductors according to claim 1, characterized in that: There are three relay baffles, which are respectively used to block the three side surfaces of the square body of the relay, and the three relay baffles form a U-shaped cavity with an opening facing the first wiring terminal.

3. The meter bottom capable of positioning relays and mutual inductors according to claim 1 or 2, characterized in that: At least two relay support plates for supporting the square body of the relay are arranged on the bottom shell, and two adjacent relay support plates are arranged at intervals to form a heat dissipation interval.

4. The meter bottom capable of positioning relays and mutual inductors according to claim 1 or 2, characterized in that: The transformer support is a transformer support frame, and the transformer support frame includes at least two transformer support plates arranged at intervals and a connecting plate connecting the transformer support plates.

5. The meter bottom capable of positioning relays and mutual inductors according to claim 1 or 2, characterized in that: The containing structure is an arc-shaped containing groove which contacts and fits with the cylindrical body of the mutual inductor.

6. The meter bottom capable of positioning relays and mutual inductors according to claim 1 or 2, characterized in that: The bottom of the meter capable of positioning the relay and the mutual inductor also comprises a lead plate arranged on the bottom shell, the lead plate is used for positioning the lead of the mutual inductor, and a wire clamping groove is arranged on the lead plate.

7. An electric meter, characterized in that: The invention comprises a relay, a mutual inductor, and a meter bottom capable of positioning the relay and the mutual inductor as described in any one of claims 1 to 6.

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