CN116825581A - Relay and ammeter sampling module - Google Patents

Abstract

The invention discloses a relay and an electric energy meter sampling module, which comprises a relay body and a signal wire led out from the relay body, wherein an electric connector connected with a leading-out end of the signal wire is arranged on the relay body, and the signal wire is configured to realize electric connection through the mutual matching of the electric connector arranged on the relay body and a PCB to be assembled. In the relay, the signal wire which is originally wired by a customer is led out of the relay body in advance, meanwhile, the electric connector is arranged on the relay body, and the leading-out end of the signal wire is connected with the corresponding electric connector, so that the signal wire led out of the relay body can be matched with the PCB to be assembled through the electric connector so as to realize stable electric connection by automatic welding, and therefore, the relay is beneficial to reducing the troublesome degree of wiring of the customer, the installation cost and improving the installation convenience and the assembly efficiency of the PCB.

Description

Relay and ammeter sampling module

Technical Field

The invention relates to the technical field of electric energy meters, in particular to a relay and an electric energy meter sampling module.

Background

In the prior art, after a customer purchases an electric energy meter relay product, the customer draws out a signal wire for sampling from the electric energy meter relay, and then electrically connects a leading-out end of the signal wire with a PCB to be assembled through manual welding so as to collect signals such as voltage. However, because the signal wire is the flexible cable, it is difficult to realize automatic welding, and manual welding signal wire has the poor problem of welding efficiency again, and manual welding still has the defect such as welding insecure, cold joint failure easily, and then influences the stability in use of electric energy meter sampling integrated module.

Disclosure of Invention

Aiming at the defects of the prior art, the invention provides the relay, wherein the signal wire led out from the relay body is firstly connected with the electric connector integrated on the relay body, and then the electric connector is matched with the PCB to be assembled to realize electric connection, thereby being beneficial to improving the connection efficiency of the signal wire and the PCB.

In order to achieve the above purpose, the invention is realized by the following technical scheme:

the utility model provides a relay, includes the relay body and follows the signal line that draws forth on the relay body, is provided with the electric connector that is connected with the leading-out end of signal line on the relay body, and the signal line is configured to carry out the interwork through the electric connector that sets up on the relay body and the PCB board that waits to assemble and realize electric connection.

Further, the signal line is a sampling line led out from the relay body.

Further, the sampling line comprises a zero line voltage sampling line, an A phase voltage sampling line, a B phase voltage sampling line and a C phase voltage sampling line which are led out from the relay body, four electric connectors are arranged on the relay body, and leading-out ends of the zero line voltage sampling line, the A phase voltage sampling line, the B phase voltage sampling line and the C phase voltage sampling line are respectively connected with one corresponding electric connector.

Further, the arrangement position of each electrical connector on the relay body is configured to: each electric connector is fixed on the similar height position of the relay body, and the electric connection assembly direction of each electric connector faces the PCB to be assembled uniformly, so that each electric connector can be plugged and matched with the PCB to be assembled simultaneously to realize electric connection.

Further, the electrical connector is a connector structure capable of being directly inserted and matched with the PCB to realize electrical connection.

Further, an electric connector embedding groove is formed in the relay body, and the electric connector is embedded in the electric connector embedding groove.

Further, be equipped with electric connector and inlay the groove position on the relay body, electric connector inlays the groove position including setting up a plurality of pairs of grafting protruding muscle and a plurality of movable plug block on the lateral wall face of relay body, a grafting groove that is used for pegging graft complex with grafting protruding muscle is offered respectively to each movable plug block's both sides limit department to make movable plug block pass through the grafting groove of both sides and the grafting cooperation location of the grafting protruding muscle that corresponds on the relay body, and offered the caulking groove on the movable plug block, electric connector detachably adaptation inlays to be fixed in the caulking groove of movable plug block.

Further, the relay is an electric energy meter relay, a wiring terminal row is arranged on the relay body, and a wiring terminal of the signal wire is electrically connected with a corresponding terminal structure on the wiring terminal row.

Further, a plurality of cable positioning structures for fixing the signal wires on the shell are arranged outside the shell of the relay body.

Further, be provided with the coil pin of being connected with the inside coil electricity of relay body on the relay body, the inside coil of relay body carries out the electricity through coil pin and the PCB board of waiting to assemble and is connected.

Further, the coil pin sets up in the top position department of relay body, and electric connector sets up in the nearly top position department of the lateral wall face of relay body, and electric connector has the protrusion in relay body top in order to be used for carrying out grafting complex pin with the connecting hole on the PCB board, and the coil pin is close with electric connector's pin's extension height.

Based on the same inventive concept, the invention also provides an electric energy meter sampling module which comprises any relay.

The technical scheme has the following advantages or beneficial effects:

in the relay and the electric energy meter sampling module, the signal wire which is originally wired by a customer is led out of the relay body in advance, meanwhile, the electric connector is arranged on the relay body, and the leading-out end of the signal wire is connected with the corresponding electric connector, so that the signal wire led out of the relay body can be matched with the PCB to be assembled through the electric connector so as to realize stable electric connection by automatic welding, and therefore, the wiring trouble degree of the customer and the installation cost are reduced, and the installation convenience and the assembly efficiency of the PCB are improved.

Drawings

Fig. 1 is a schematic perspective view of a first embodiment of the present invention.

Fig. 2 is a schematic perspective view of another angle according to the first embodiment of the present invention.

Fig. 3 is a schematic diagram of an assembly structure of a relay and a PCB board according to a first embodiment of the present invention.

Fig. 4 is a schematic perspective view of a second embodiment of the present invention.

Description of the reference numerals:

1. the relay body, 2, the signal line, 3, the electric connector, 4, the PCB board, 11, electric connector embeds the trench, 12, binding post row, 13, cable location structure, 14, coil pin, 21, zero line voltage sampling line, 22, phase voltage sampling line, 23, phase voltage sampling line, 24, phase voltage sampling line, 111, movable plug-in block, 112, grafting protruding muscle, 1111, grafting groove.

Detailed Description

The invention is further described below with reference to the drawings and examples.

In the description of the present invention, it should be understood that the terms "upper," "lower," "front," "rear," "left," "right," "top," "bottom," "inner," "outer," and the like indicate or are based on the orientation or positional relationship shown in the drawings, merely to facilitate description of the present invention and to simplify the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present invention.

Example 1

Referring to fig. 1 to 3, an embodiment of the present invention provides a relay, which includes a relay body 1 and a signal wire 2 led out from the relay body 1, wherein an electrical connector 3 connected to an led-out end of the signal wire 2 is disposed on the relay body 1, and the signal wire 2 is configured to implement electrical connection by means of the electrical connector 3 disposed on the relay body 1 and a PCB board 4 to be assembled. It can be understood that in this embodiment, the signal line 2 that will be originally wired by the customer is led out from the relay body 1 in advance, and meanwhile, the electrical connector 3 is provided on the relay body 1, and the led-out end of the signal line 2 is connected with the corresponding electrical connector 3, so that the signal line led out from the relay body 1 can be matched with the PCB board 4 to be assembled through the electrical connector 3 so as to perform automatic welding to realize stable electrical connection, thereby being beneficial to reducing the wiring trouble degree and the installation cost of the customer and improving the installation convenience and the assembly efficiency of the PCB board.

Referring to fig. 1 to 3, in a preferred embodiment, the signal line 2 is a sampling line led out from the relay body 1. In one preferred implementation scenario, the sampling lines preferably include a zero line voltage sampling line 21, an a-phase voltage sampling line 22, a B-phase voltage sampling line 23 and a C-phase voltage sampling line 24, which are led out from the relay body 1, four electrical connectors 3 are disposed on the relay body 1, and the leading-out ends of the zero line voltage sampling line 21, the a-phase voltage sampling line 22, the B-phase voltage sampling line 23 and the C-phase voltage sampling line 24 are respectively connected with a corresponding electrical connector 3. However, it should be understood by those skilled in the art that in other embodiments, the signal line 2 is not limited to the voltage sampling line disclosed in the present embodiment, but may be other signal lines such as a current sampling line. The cable which needs to be led out from the relay body 1 to be connected with the external PCB can be connected with the electric connector 3 integrated on the relay body 1, and then the corresponding electric connector 3 is matched with the PCB to be assembled to realize electric connection.

Referring to fig. 1 to 3, in a preferred embodiment, a relay body 1 has a substantially rectangular structure, a substantially flat upper end surface is formed at a top position of the relay body 1, and the upper end surface can be used for being matched with a PCB to be assembled, and the arrangement positions of the electrical connectors 3 on the relay body 1 are as follows: each electric connector 3 is fixed on the similar height position of the relay body 1, and the electric connection assembly direction of each electric connector 3 faces the PCB 4 to be assembled uniformly, so that each electric connector 3 can be simultaneously plugged and matched with the PCB 4 to be assembled to realize electric connection. Specifically, the fixing of each electrical connector 3 at a similar height position of the relay body 1 is understood to mean that each electrical connector 3 is fixedly installed at the same height position of the relay body 1 or at a position of substantially the same height slightly deviated from the upper and lower positions. The electric connectors 3 are arranged at the same height position of the relay body 1, so that the mutual matching synchronism and stability between the electric connectors 3 and the PCB 4 to be assembled are improved, namely, after the PCB 4 corresponds to the relay body 1, the electric connectors 3 on the relay body 1 can be aligned and matched with corresponding matching positions of the PCB 4, and further, the electric connection is realized. In this embodiment, the electrical connectors 3 are disposed on the same side wall surface of the relay body 1, however, it should be understood by those skilled in the art that in other embodiments, the electrical connectors 3 may be fixed at other positions on the side wall of the relay body in a dispersed manner, and all the electrical connectors need not be disposed on the same side, so long as the electrical connectors 3 can be accurately mated with the preset mating structures on the PCB 4 when the PCB 4 is assembled, so as to achieve electrical connection. From another perspective, it is understood that the installation height position and the fixing orientation of each electrical connector 3 on the relay body 1 can be correspondingly adapted according to the relevant structure of the PCB board 4 to be assembled. As long as the corresponding position of the PCB 4 and the relay body 1 can be ensured, each electrical connector 3 on the relay body 1 can be synchronously and uniformly matched with the PCB 4 to realize electrical connection.

Referring to fig. 1 to 3, in a preferred embodiment, the electrical connector 3 is a connector structure capable of being directly inserted and mated with the PCB 4 to achieve electrical connection. The PCB 4 is provided with a connecting hole matched with the connector structure, pins of the connector structure can be inserted into the connecting hole of the PCB 4 in an adapting way, and then the pins are soldered to realize stable electric connection. However, it will be understood by those skilled in the art that in other embodiments, the electrical connector 3 is not limited to the connector structure disclosed in this embodiment, but may be any other conventional electrical connector structure in the art, such as a male-female plug terminal, specifically, for example, a male plug terminal is fixed on the relay body 1, the lead-out end of the signal wire 2 led out of the relay body 1 is electrically connected to the male plug terminal, and a female plug terminal adapted to the male plug terminal is connected to the PCB board 4, so that the signal wire 2 led out of the relay body 1 can be electrically connected to the PCB board 4 through the plug-in fit of the male-female plug terminal. In addition, the arrangement positions of the male plug terminal and the female plug terminal in the male plug terminal on the relay body 1 and the PCB board 4 can also be exchanged.

Referring to fig. 1 and fig. 2, in a preferred embodiment, an electrical connector embedded slot 11 is provided on a relay body 1, the electrical connector embedded slot 11 is a caulking structure fixedly provided on a side wall surface of the relay body 1, preferably, the electrical connector embedded slot 11 is integrally formed on the side wall surface of the relay body 1, and the electrical connector 3 is embedded in the electrical connector embedded slot 11. It can be appreciated that the convenience of assembling the electrical connector 3 on the relay body 1 can be effectively improved by arranging the electrical connector embedding slot 11 on the relay body 1, which is beneficial to improving the assembling efficiency thereof. However, it should be understood by those skilled in the art that, in other embodiments, the electrical connector 3 is not limited to the use of the electrical connector embedded slot 11 to fix the electrical connector 3 as disclosed in this embodiment, and other conventional manners in the art, such as adhesive fixing, screw locking, etc., may be used, so long as the electrical connector can be stably fixed at the corresponding position of the relay body 1.

Referring to fig. 1 to 3, in a preferred embodiment, the relay is an ammeter relay, a terminal block 12 is disposed on a relay body 1, and terminals of a signal line 2 (two ends of the signal line respectively form a lead-out end and a terminal, the lead-out end is used for being connected with an electrical connector) are electrically connected with corresponding terminal structures on the terminal block 12. In this embodiment, the signal line 2 is a voltage sampling line, and in the prior art, a mode of extracting the voltage sampling line from the relay for collecting voltage generally includes a sampling mode of extracting the signal line by using a Current Transformer (CT) and a sampling mode of extracting the signal line by connecting the manganese copper sheet with the terminal block. In this embodiment, specifically, a sampling mode is adopted in which a manganese copper sheet is connected to a corresponding terminal on the terminal block 12 to conduct signal line extraction.

Referring to fig. 1 and 2, in a preferred embodiment, a terminal block 12 is disposed at a front side wall of a housing of a relay body 1, a flat upper end surface of the housing of the relay body 1 is used for matching with a PCB board 4 to be assembled, and a plurality of cable positioning structures 13 for fixing a signal cable 2 on a housing are formed on a left side wall, a right side wall and a bottom surface of the housing of the relay body 1. The cable positioning structure 13 comprises an upper bending limiting part (an opening of the upper bending limiting part is downward) and a lower bending limiting part (an opening of the lower bending limiting part is upward) which are oppositely arranged at left and right intervals outside a shell of the relay body 1, a signal wire clamping gap is formed between the upper bending limiting part and the outer wall of the shell, and a signal wire 2 is clamped and positioned on the relay body 1 through the mutual matching of the upper bending limiting part and the lower bending limiting part. In addition, in this embodiment, the zero line voltage sampling line 21 may be fixed to the left side wall of the housing through the corresponding cable positioning structure 13, the B phase voltage sampling line 23 and the C phase voltage sampling line 24 may be fixed through the cable positioning structure 13 disposed on the bottom surface of the housing, and the a phase voltage sampling line 22 may be fixed through the cable positioning structure 13 on the right side wall of the housing, and the electrical connectors 3 of each voltage sampling line are arranged in a straight line on the rear side wall of the housing, so that each wall surface of the housing of the relay body 1 may be fully utilized to achieve the purpose of fully utilizing the space, and the dispersed arrangement of each voltage sampling line is beneficial to the arrangement of the wiring on one hand, and on the other hand, the neat and beautiful appearance of the appearance thereof may be improved. However, it will be appreciated by those skilled in the art that in other embodiments, the cable positioning structure 13 may be any other conventional cable clamping structure used for fixing cables in the prior art, such as an integrated cable clamping structure on the relay body 1. As long as the signal wire 2 can be fixed to the relay body 1 housing by the cable positioning structure 13.

Referring to fig. 1 to 3, in a preferred embodiment, a coil pin 14 electrically connected to a coil inside the relay body 1 is disposed on the relay body 1, and the coil inside the relay body 1 is electrically connected to the PCB 4 to be assembled through the coil pin 14. In one preferred embodiment, the coil pins 14 are preferably disposed at the top of the relay body 1, the electrical connector 3 is disposed at the position near the top of the side wall of the relay body 1, the electrical connector 3 has pins protruding from the top of the relay body 1 for plugging with the connection holes on the PCB board 4, and the coil pins 14 are similar to the pins of the electrical connector 3 in extension height. In this embodiment, the extending heights of the coil pins 14 and the pins of the electrical connector 3 are similar, which is to be understood as that the extending heights of the coil pins 14 and the pins of the electrical connector 3 are the same or approximately the same, and a certain height difference is pre-allowed between the two, so long as the pins of the coil pins 14 and the pins of the electrical connector 3 can be inserted into the corresponding connection holes of the PCB 4 after the PCB 4 and the relay body 1 are corresponding to each other, so as to achieve electrical connection. It can be understood that, so set up, can improve the assembly efficiency of PCB board 4 for can need not to carry out wiring power supply to the coil in the relay body 1 in addition, greatly reduced customer's wiring loaded down with trivial details degree, and then improve the whole assembly efficiency of PCB board 4.

Referring to fig. 1 to 3, an embodiment of the present invention further provides an electric energy meter sampling module, which includes the relay of any one of the above embodiments.

Example two

Referring to fig. 4, the difference between the present embodiment and the first embodiment is that the electrical connector inserting slot 11 is not integrally formed on the side wall surface of the relay body 1, in this embodiment, the electrical connector inserting slot 11 includes a plurality of pairs of inserting ribs 112 and a plurality of movable inserting blocks 111 disposed on the side wall surface of the relay body 1, each inserting rib 112 is disposed at a position near the middle or slightly above the middle of the side wall surface of the relay body 1, and inserting slots 1111 for inserting and matching with the inserting ribs 112 are respectively formed at two side edges of each movable inserting block 111, so that the movable inserting block 111 is positioned on the relay body 1 through inserting and matching between the inserting slots 1111 at two sides and the corresponding inserting ribs 112, and the movable inserting block 111 is provided with inserting slots, and the electrical connector 3 is detachably adapted and fixed in the inserting slots of the movable inserting block 111.

In practical application, a plurality of sets of movable plug blocks 111 with different specifications can be configured, the inside of each movable plug block 111 in each set of movable plug blocks is provided with a caulking groove for embedding and fixing the electric connector 3, but the overall height dimension of each set of movable plug blocks is different, or the opening height positions of the plug grooves 1111 on the side edges of each set of movable plug blocks are different, so that each set of movable plug blocks is positioned on the relay body 1 through the plug matching of the plug grooves 1111 on the two sides and the corresponding plug ribs 112, but the corresponding electric connector 3 has different mounting heights on the side wall surface of the relay body 1, and therefore, in the use process, a user can practically need (such as different PCB mounting heights and the like) to match with the movable plug blocks 111 with different specifications to realize the adjustment requirement of the mounting height of the electric connector 3 on the side wall surface of the relay body 1. Thereby realizing the effect of adjustable mounting height of the electric connector 3 on the side wall surface of the relay body 1, and being beneficial to improving the adaptation universality thereof.

The embodiments are merely illustrative of the technical solution of the present invention, and not limiting thereof; although the invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some of the technical features thereof can be replaced with equivalents; such modifications and substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present invention, and therefore all other embodiments obtained by those skilled in the art without making creative efforts are intended to fall within the protection scope of the present invention.

Claims (10)

1. A relay, characterized in that: the relay comprises a relay body (1) and a signal wire (2) led out from the relay body (1), wherein an electric connector (3) connected with a leading-out end of the signal wire (2) is arranged on the relay body (1), and the signal wire (2) is configured to realize electric connection through the mutual matching of the electric connector (3) arranged on the relay body (1) and a PCB (4) to be assembled.

2. The relay of claim 1, wherein: the signal line (2) is a sampling line led out from the relay body (1), the sampling line comprises a zero line voltage sampling line (21), an A phase voltage sampling line (22), a B phase voltage sampling line (23) and a C phase voltage sampling line (24) led out from the relay body (1), four electric connectors (3) are arranged on the relay body (1), and the leading-out ends of the zero line voltage sampling line (21), the A phase voltage sampling line (22), the B phase voltage sampling line (23) and the C phase voltage sampling line (24) are respectively connected with a corresponding electric connector (3).

3. The relay according to claim 2, wherein: the arrangement position of each electrical connector (3) on the relay body (1) is configured as follows: each electric connector (3) is fixed on the similar height position of the relay body (1), and the electric connection assembly direction of each electric connector (3) uniformly faces to the PCB (4) to be assembled, so that each electric connector (3) can be simultaneously plugged and matched with the PCB (4) to be assembled to realize electric connection.

4. A relay according to claim 3, characterized in that: be equipped with electric connector embedding slot position (11) on relay body (1), electric connector embedding slot position (11) are including setting up a plurality of pairs of grafting protruding muscle (112) and a plurality of movable plug block (111) on the lateral wall face of relay body (1), a grafting groove (1111) that is used for carrying out grafting complex with grafting protruding muscle (112) is offered respectively to each movable plug block (111) both sides limit department to make movable plug block (111) pass through grafting groove (1111) of both sides and the grafting cooperation location of grafting protruding muscle (112) that corresponds on relay body (1), and offered the caulking groove on movable plug block (111), electric connector (3) detachably adaptation embedding is fixed in the caulking groove of movable plug block (111).

5. The relay of claim 1, wherein: the electric connector (3) is a connector structure which can be directly inserted and matched with the PCB (4) to realize electric connection.

6. The relay of claim 1, wherein: the relay is an electric energy meter relay, a wiring terminal row (12) is arranged on the relay body (1), and the wiring terminal of the signal wire (2) is electrically connected with a corresponding terminal structure on the wiring terminal row (12).

7. The relay of claim 1, wherein: a plurality of cable positioning structures (13) used for fixing the signal wires (2) on the shell are arranged outside the shell of the relay body (1).

8. A relay according to any one of claims 1 to 7, wherein: be provided with coil pin (14) that are connected with the inside coil electricity of relay body (1) on relay body (1), the inside coil of relay body (1) carries out the electricity through coil pin (14) and is connected with PCB board (4) that wait to assemble.

9. The relay of claim 8, wherein: coil pin (14) set up in the top position department of relay body (1), and electric connector (3) set up in the nearly top position department of lateral wall face of relay body (1), electric connector (3) have protruding in relay body (1) top in order to be used for carrying out grafting complex pin with the connecting hole on PCB board (4), and coil pin (14) are close with the extension height of the pin of electric connector (3).

10. The utility model provides an electric energy meter sampling module which characterized in that: comprising a relay according to any one of claims 1 to 9.