Relay, electronic control assembly and electric meter

Abstract

The present application relates to a relay, an electronic control assembly and an electric meter. The relay is configured to be connected to an electronic control board. The relay comprises a relay body; load terminals, the load terminals being located outside a first side of the relay body in a Y-axis direction; and sampling pins, the sampling pins being located outside the first side of the relay body in the Y-axis direction, and the sampling pins being connected to the load terminals and the electronic control board. The relay further comprises an isolation portion protruding from the first side of the relay body in the Y-axis direction, wherein the isolation portion is located between the load terminals and the electronic control board, and the isolation portion is provided with first through holes corresponding to the sampling pins and allowing the sampling pins to pass therethrough.

Description

A relay, an electronic control component, and an electricity meter

[0001] Related applications

[0002] This application claims priority to Chinese patent application filed on January 7, 2025, application number 202520031408.9, entitled "A Relay, an Electronic Control Component and an Electric Meter", the entire contents of which are incorporated herein by reference. Technical Field

[0003] This application relates to the field of relay technology, specifically to a relay, an electronic control component, and an electricity meter. Background Technology

[0004] A relay includes a relay body, load terminals, and sampling pins. The relay body contains a contact portion and a magnetic circuit portion. The load terminals are located on the outside of the relay body and are electrically connected to the contact portion of the relay body. The sampling pins are located on the same side as the load terminals for electrical connection. When the relay is connected to an electronic control board (the connection is both a signal connection and an electrical connection), the sampling pins connect the load terminals and the electronic control board. The electronic control board is often positioned opposite the load terminals to connect to the sampling pins. Since the load terminals are high-voltage, to avoid interference from the high voltage of the load terminals to the low-voltage components on the electronic control board, electrical components are often not placed on the part of the electronic control board corresponding to the load terminals in related technologies. Instead, the electronic control board is made larger and the electrical components are placed in other locations. Therefore, the electronic control board in related technologies is often large in area and wastes a lot of space. Summary of the Invention

[0005] According to various embodiments of this application, this application provides a relay, an electronic control component, and an electric meter, which have good electrical isolation effect, high space utilization of the electronic control board, small area of ​​the electronic control board, and lower cost when applied.

[0006] To achieve the above objectives, this application and some of its embodiments employ the following technical solutions, but the embodiments are not limited to the following solutions:

[0007] This application provides a relay for connection to an electronic control board, the relay comprising:

[0008] Relay body;

[0009] A load terminal, wherein the load terminal is located outside the first side of the relay body along the Y-axis direction;

[0010] And a sampling pin, which is located outside the first side of the relay body along the Y-axis direction, and the sampling pin is connected to the load terminal and the control board;

[0011] The relay also includes:

[0012] The relay body has an isolation portion protruding from its first side along the Y-axis direction. The isolation portion is located between the load terminal and the control board. The isolation portion has a first through hole corresponding to the sampling pin and allowing the sampling pin to pass through.

[0013] In some embodiments, the end face of the first through hole near the end of the electronic control board is adapted to abut against the electronic control board.

[0014] In some embodiments, the electronic control board is located at the first end of the relay body along the Z-axis; the sampling pin extends along the Z-axis.

[0015] The isolation part includes a body and an isolation seat, the isolation seat extends along the Z-axis and protrudes from the surface of the body;

[0016] The body is located between the load terminal and the control board along the Z-axis direction, and the body is at least partially used to separate the load terminal and the control board, with the control board located at the first end of the relay body along the Z-axis direction;

[0017] The first through hole is formed on the body and the isolation seat and extends along the Z-axis.

[0018] In some embodiments, the relay body is provided with a base and a cover plate, and the base has an opening at the first end near the electronic control board along the Z-axis direction;

[0019] The cover plate is placed over the opening, and the cover plate has the isolation part integrally formed.

[0020] In some embodiments, the cover plate has a positioning part on the side near the electronic control board, the positioning part being used to position the electronic control board.

[0021] In some embodiments, the positioning portion is formed on the isolation portion; the positioning portion includes a positioning seat and a positioning post;

[0022] The positioning seat is fixed to the body, the positioning post protrudes from the positioning seat along the Z-axis, and the end of the positioning seat near the electronic control board is provided with an abutment surface, which is adapted to abut against the electronic control board. The positioning post is used to position the electronic control board.

[0023] In some embodiments, the relay includes two load terminals, which are spaced apart along the X-axis.

[0024] The two load terminals are respectively the first load terminal and the second load terminal;

[0025] The first load terminal is provided with a first connecting segment and a second connecting segment, both of which are sheet-like and connected as one piece. The first connecting segment extends along the Y-axis direction and is perpendicular to the X-axis direction. The first connecting segment is connected to the sampling pin. The second connecting segment is used for external electrical connection.

[0026] The second load terminal is provided with a third connecting segment, a fourth connecting segment, and a fifth connecting segment, all of which are sheet-like and connected as one piece. The third connecting segment extends along the Y-axis direction and is perpendicular to the X-axis direction. The third connecting segment is connected to the sampling pin. The fourth connecting segment is used for external electrical connection.

[0027] The fifth connecting segment is connected to the third connecting segment at one end and extends away from the first connecting segment along the X-axis direction at the other end. The fourth connecting segment is connected to the fifth connecting segment and extends away from the third connecting segment along the Y-axis direction.

[0028] In some embodiments, the relay includes two load terminals, which are spaced apart along the X-axis.

[0029] The two load terminals are a first load terminal and a second load terminal; the second load terminal is provided with a second connection segment for external electrical connection; the second load terminal is provided with a fourth connection segment for external electrical connection;

[0030] The projection planes of the second connecting segment and the isolation portion in the direction perpendicular to the Z-axis are offset from each other; the projection planes of the fourth connecting segment and the isolation portion in the direction perpendicular to the Z-axis at least partially overlap, and the isolation portion is provided with a notch that is at least partially opposite to the fourth connecting segment along the Z-axis.

[0031] In some embodiments, a shielding cover is also included, which is adapted to be fitted over the relay body in the X direction and to be limited and connected to the cover plate in the X-axis and Y-axis directions.

[0032] In some embodiments, the cover plate has two limiting portions on the side opposite to the seat body. The limiting portions are strip-shaped and protrude from the cover plate.

[0033] Two limiting parts extend along the X-axis and are spaced apart along the Y-axis, and the shielding cover is at least partially engaged between the two limiting parts.

[0034] In some embodiments, the one of the two limiting portions that is farther away from the isolation portion is the first limiting portion;

[0035] The relay body is provided with a coil pin on the second side along the Y-axis direction, and the coil pin extends along the Z-axis direction and is located close to the first limiting part.

[0036] The cover plate has a protruding connecting seat, which corresponds to the coil pin. The connecting seat is located near the first limiting part and has a second through hole corresponding to the coil pin. The coil pin passes through the second through hole and is inserted into the electronic control board.

[0037] In some embodiments, the cover plate has a limiting protrusion on the side opposite to the seat body, the limiting protrusion is located downstream of the shield cover sleeve direction, and the shield cover has a limiting hole adapted to the limiting protrusion.

[0038] This application provides an electronic control component, including the relay and electronic control board as described above.

[0039] This application provides an electricity meter, including the electronic control components described above.

[0040] Details of one or more embodiments of this application are set forth in the following drawings and description, and other features, objects and advantages of this application will become apparent from the specification, drawings and claims.

[0041] As can be seen from the above description of this application and its preferred embodiments, compared with related technologies, the technical solution of this application and its preferred embodiments have the following beneficial effects due to the adoption of the following technical means:

[0042] In some embodiments, an isolation section is provided on the first side of the relay body. The isolation section is located between the load terminal and the control board, so that the part of the control board extending to the side where the load terminal is located can be isolated from the load electronics, and the creepage distance between them is increased. Therefore, electrical components can also be arranged on the part of the control board corresponding to the isolation section. Compared with related technologies, the effective area of ​​the control board for installing electrical components is increased, which avoids the need to increase the area of ​​the control board to arrange electrical components, thereby reducing the area of ​​the control board, improving the space utilization of the control board, and reducing the cost of the control board. The isolation section is provided with a first through hole corresponding to the sampling pin, so that the sampling pin can pass through the first through hole of the isolation section and connect to the control board. Since the sampling pin is also a high voltage, the isolation section can also isolate the high voltage of the sampling pin, thereby improving the strong and weak voltage isolation effect of the control board.

[0043] In some embodiments, when there is a gap between the end of the first through hole facing the control board and the control board, the portion of the sampling pin located between the first through hole and the control board will be exposed. Since the sampling pin is connected to the load terminal, it is also subject to high voltage, which will undoubtedly affect the electrical components on the control board. In this technical solution, the end face of the first through hole near the control board is suitable for contacting the control board. Thus, the hole wall of each first through hole can reduce the high voltage interference of the corresponding sampling pin, further ensuring that electrical components can also be arranged on the control board near the sampling pin, further improving the space utilization of the control board and reducing the cost of the control board.

[0044] In some embodiments, the isolation portion includes a body and an isolation seat protruding from the body and extending along the Z-axis. A first through hole is formed on the body and the isolation seat and extends along the Z-axis. Compared with a solution without an isolation seat, this is more advantageous in reducing the thickness of the body along the Z-axis, thereby reducing the production material of the isolation portion and lowering production costs.

[0045] In some embodiments, the relay body is provided with a base and a cover plate. The base has an opening at the first end near the control board along the Z-axis direction. The cover plate covers the opening and has an integrally formed isolation part. On the one hand, the isolation part is integrally formed on the cover plate, which is more conducive to production and processing. On the other hand, it is not necessary to produce the isolation part that separates the load terminal and the control board separately, nor is it necessary to consider the installation problem of this independently set isolation part and the problem of poor isolation effect caused by the gap formed after installation. This is more conducive to reducing production and assembly processes and reducing costs.

[0046] In some embodiments, the cover plate is provided with a positioning part for positioning the electronic control board on the side near the electronic control board. The positioning part can position the electronic control board, reduce the occurrence of dimensional defects, improve the welding dimensional qualification rate, and reduce the number of rework and scrap rate.

[0047] In some embodiments, the positioning part is formed on the isolation part, resulting in smaller deviations between the sampling pin and the control board, which helps improve the welding qualification rate between the sampling pin and the control board. The structural design of the positioning seat facilitates precise positioning of the control board, further reducing the occurrence of dimensional defects.

[0048] In some embodiments, the arrangement of the first and third connecting segments facilitates connection with the sampling pin; the structural arrangement of the first and second load terminals ensures that the second and fourth connecting segments are far apart, which facilitates the connection of the second and fourth connecting segments with external electrical components. The projection planes of the second connecting segment and the isolation portion in the direction perpendicular to the Z-axis are offset from each other; the projection planes of the fourth connecting segment and the isolation portion in the direction perpendicular to the Z-axis at least partially overlap, and the isolation portion has a notch that avoids the fourth connecting segment. This facilitates both the connection of the second and fourth connecting segments with external electrical components and the miniaturization of the relay size.

[0049] In some embodiments, the shielding cover can be used to shield external magnetic fields, protecting the internal magnetic circuit of the relay and preventing external magnetic fields from affecting the magnetic circuit and causing malfunction of the armature assembly. Since the shielding cover is fitted onto the relay body along the X-axis, it is only necessary to limit the shielding cover and the cover plate along the X-axis and Y-axis to fix the shielding cover relative to the relay body. The limiting structure is located on the cover plate, making processing more convenient and the structure simpler.

[0050] In some embodiments, two limiting parts extend along the X-axis and are spaced apart along the Y-axis. The limiting protrusion is located downstream of the shielding cover fitting direction. The shielding cover is at least partially engaged between the two limiting parts and has a limiting hole that matches the limiting protrusion. Therefore, when the shielding cover is fitted into the relay body, the two limiting parts limit the shielding cover and guide the installation of the shielding cover, so that the shielding cover can reliably move to the position where the limiting hole matches the limiting protrusion, thereby making the installation of the shielding cover easier and simpler.

[0051] In some embodiments, the coil pins are low voltage and are located on the second side of the relay body along the Y-axis, away from the load terminals, to avoid interference from the load terminals to the coil pins. The connector is also close to the first limiting part, so the first limiting part can also avoid interference from the high voltage part on the control board to the coil pins. The connector further shields the high voltage part on the control board from interfering with the coil pins. Attached Figure Description

[0052] To more clearly illustrate the technical solutions in the embodiments of this application or related technologies, the drawings used in the description of the embodiments or related technologies will be briefly introduced below. Obviously, the drawings described below are only embodiments of this application. For those skilled in the art, other drawings can be obtained based on the published drawings without creative effort.

[0053] Figure 1 is a schematic diagram of the electronic control components provided in some embodiments of this application;

[0054] Figure 2 is the right view shown in Figure 1;

[0055] Figure 3 is a schematic diagram of a relay concealed shielding cover in some embodiments of this application;

[0056] Figure 4 is an exploded perspective view of a relay in some embodiments of this application;

[0057] Figure 5 is a top view of the diagram shown in Figure 3.

[0058] Explanation of reference numerals in the attached drawings: Relay body 10; Base 11; Cover plate 12; Isolation part 13; Body 131; Isolation base 132; First through hole 133; Notch 134; Positioning part 14; Positioning base 141; Abutment surface 1411; Positioning post 142; Limiting part 15; First limiting part 151; Connecting base 16; Second through hole 161; Limiting protrusion 17; Buckle 18; Load terminal 20; First load terminal 21; First connecting section 211; Second connecting section 212; Second load terminal 22; Third connecting section 221; Fourth connecting section 222; Fifth connecting section 223; Sampling pin 30; Coil pin 40; Shielding cover 50; Limiting hole 51; Control board 60. Detailed Implementation

[0059] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0060] In the claims and the description other than the embodiments, the terms "X-axis direction," "Y-axis direction," and "Z-axis direction" only refer to a feature having one of the aforementioned directions being perpendicular to a feature having another direction, and do not require that they be implemented according to the "X-axis direction," "Y-axis direction," and "Z-axis direction" described in the embodiments. In the embodiments, the X-axis direction is perpendicular to both the Y-axis direction and the Z-axis direction. The X-axis direction can be divided into left and right, the Y-axis direction into front and back, and the Z-axis direction into up and down.

[0061] Unless otherwise expressly defined, the use of terms such as "first," "second," or "third" in the claims, description, and accompanying drawings of this application is for the purpose of distinguishing different objects, not for describing a specific order.

[0062] Unless otherwise expressly defined, in the claims, description and accompanying drawings of this application, the use of directional terms such as “center,” “lateral,” “longitudinal,” “horizontal,” “vertical,” “top,” “bottom,” “inner,” “outer,” “upper,” “lower,” “front,” “rear,” “left,” “right,” “clockwise,” and “counterclockwise” to indicate orientation or positional relationships is based on the orientation and positional relationships shown in the accompanying drawings, and is only for the convenience of describing this application and simplifying the description, and is not intended to indicate or imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore should not be construed as limiting the specific scope of protection of this application.

[0063] Unless otherwise expressly defined, the terms "fixed connection" or "fixed connection" used in the claims, description and drawings of this application shall be interpreted broadly to refer to any connection in which there is no displacement or relative rotation relationship between the two parties, including non-removable fixed connection, detachable fixed connection, integral connection and fixed connection by other means or components.

[0064] In the claims, description and accompanying drawings of this application, the terms "comprising," "having," and variations thereof are used to mean "including but not limited to."

[0065] In some exemplary embodiments, referring to Figures 1-2, a relay is provided. The relay is disposed in an electronic control assembly, which also includes an electronic control board 60. The relay is used to connect to the electronic control board 60. The relay includes a relay body 10, a load terminal 20, a sampling pin 30, a coil pin 40, and a shield 50. The relay body 10 has a contact portion and a magnetic circuit portion inside. The contact portion includes a moving contact and a stationary contact. The magnetic circuit portion includes a coil assembly and an armature assembly. This part belongs to related technology and will not be described in detail in this embodiment.

[0066] The load terminal 20 is electrically connected to the contact portion inside the relay body 10. The sampling pin 30 connects the load terminal 20 and the control board 60. The coil pin 40 connects the coil assembly inside the relay body 10 and the control board 60. The load terminal 20 and the sampling pin 30 are both located outside the first side of the relay body 10 along the Y-axis, and the coil pin 40 is located on the second side of the relay body 10 along the Y-axis. In this embodiment, the control board 60 is located at the first end (upper end) of the relay body 10 along the Z-axis. The sampling pin 30 and the coil pin 40 both extend along the Z-axis and are inserted into and soldered to the control board 60 along the Z-axis. In this embodiment, the sampling pin 30 and the coil pin 40 mainly transmit signals to the control board 60. In Figures 1-2, there are 4 sampling pins 30 and 2 coil pins 40, but this is not a limitation.

[0067] Specifically, referring to Figures 3-5, the relay body 10 is provided with a base 11 and a cover plate 12. The base 11 has an opening at the first end near the control board 60 along the Z-axis direction, and the cover plate 12 covers the opening. In actual application, the base 11 and the cover plate 12 are fixedly connected and form a cavity for accommodating other parts of the relay, such as the magnetic circuit part and the contact part. The base 11 and the cover plate 12 are made of plastic material, for example.

[0068] In this embodiment, the cover plate 12 is, for example, rectangular. An isolation portion 13 protrudes from the first side of the relay body 10 along the Y-axis direction, and the isolation portion 13 is at least partially located between the load terminal 20 and the control board 60. Specifically, the first side of the relay body 10 along the Y-axis protrudes with an isolation portion 13 for at least partially separating the load terminal 20 and the control board 60. Specifically, the isolation portion 13 is integrally formed on the cover plate 12. It should be noted that the isolation portion 13 at least partially separating the load terminal 20 and the control board 60 is not for spatially blocking the load terminal 20 and the control board 60, but rather for increasing the creepage distance between them. The isolation portion 13 has a first through hole 133 corresponding to the sampling pin 30 and through which the sampling pin 30 passes. In this embodiment, the end face of the first through hole 133 near the electronic control board 60 is adapted to abut against the electronic control board 60. The isolation portion 13 includes a body 131 and an isolation seat 132. The isolation seat 132 extends along the Z-axis and protrudes from the surface of the body 131. The body 131 is located between the load terminal 20 and the electronic control board 60 along the Z-axis, and at least partially separates the load terminal 20 and the electronic control board 60. The first through hole 133 is formed on the body 131 and the isolation seat 132 and extends along the Z-axis. In Figures 3-5, there are two isolation seats 132, spaced apart along the X-axis. One isolation seat 132 is located at one end of the isolation portion 13 along the X-axis and cooperates with the body 131 to form three first through holes 133 arranged along the Y-axis. The other isolation seat 132 cooperates with the body 131 to form one first through hole 133.

[0069] In this embodiment, referring to Figure 4, the relay includes two load terminals 20, which are spaced apart along the X-axis. The two load terminals 20 are a first load terminal 21 and a second load terminal 22, respectively. The first load terminal 21 is provided with a first connecting segment 211 and a second connecting segment 212, which are both sheet-like and connected as one piece. The first connecting segment 211 extends along the Y-axis and is perpendicular to the X-axis. The second connecting segment 212 is used for external electrical connection. The second connecting segment 212 is integrally formed with the upper end of the first connecting segment 211 and is perpendicular to the Z-axis. The first connecting segment 211 is connected to sampling pins 30, such as three sampling pins 30 connected to the first connecting segment 211. The three sampling pins 30 pass through three first through holes 133 on one of the isolation seats 132 in a one-to-one correspondence.

[0070] The second load terminal 22 is provided with a third connecting segment 221, a fourth connecting segment 222, and a fifth connecting segment 223, all of which are sheet-like and connected as one piece. The third connecting segment 221 extends along the Y-axis direction and is perpendicular to the X-axis direction. The fourth connecting segment 222 is used for external electrical connection. One end of the fifth connecting segment 223 is connected to the third connecting segment 221, and the other end extends along the X-axis direction away from the first connecting segment 211. The fourth connecting segment 222 is connected to the fifth connecting segment 223. The fourth connecting segment 222 extends along the Y-axis direction away from the third connecting segment 221. In this embodiment, the fifth connecting segment 223 is perpendicular to the Y-axis direction, and the fourth connecting segment 222 is perpendicular to the Z-axis direction. It is connected as one piece to the upper end of the fifth connecting segment 223 and the side away from the third connecting segment 223 along the X-axis direction. The third connecting segment 221 is connected to a sampling pin 30. For example, one sampling pin 30 is connected to the third connecting segment 221. This sampling pin 30 passes through the first through hole 133 on another isolation seat 132.

[0071] The projection surfaces of the second connecting segment 212 and the isolation portion 13 in the direction perpendicular to the Z-axis are offset from each other; the projection surfaces of the fourth connecting segment 222 and the isolation portion 13 in the direction perpendicular to the Z-axis at least partially overlap. In practical applications, the fourth connecting segment 222 needs to be welded to an external electrical connection piece, so the isolation portion 13 is provided with a notch 134 that is at least partially opposite to the fourth connecting segment 222 in the Z-axis direction.

[0072] Referring to Figures 3-4, the cover plate 12 is also provided with a positioning part 14 for positioning the electronic control board 60 on the side (upper side) near the electronic control board 60. The positioning part 14 is formed on the isolation part 13. The positioning part 14 includes a positioning seat 141 fixed to the body 131 and a positioning post 142 protruding from the positioning seat 141 along the Z-axis direction. The end of the positioning seat 141 near the electronic control board 60 is provided with an abutment surface 1411 suitable for abutting against the electronic control board 60. The positioning post 142 is used to position the electronic control board 60, specifically by inserting it into the electronic control board 60. In this embodiment, there are two positioning parts 14, and the two positioning parts 14 and the first through hole 133 are arranged along the X-axis direction.

[0073] Referring again to Figures 3-4, the cover plate 12, on the side opposite to the base 11, has two limiting portions 15 corresponding to the portion of the base 11, to limit the shielding cover 50 along the X-axis and Y-axis directions. The limiting portions 15 are strip-shaped and protrude from the cover plate 12. In this embodiment, the two limiting portions 15 extend along the X-axis and are spaced apart along the Y-axis, and the shielding cover 50 is at least partially engaged between the two limiting portions 15. The one of the two limiting portions 15 furthest from the isolation portion 13 is defined as the first limiting portion 151, which is located near the second side of the relay body 10 along the Y-axis. The relay body 10 has coil pins 40 on its second side along the Y-axis, which extend along the Z-axis and are located near the first limiting portion 151.

[0074] A connecting seat 16 protrudes from the cover plate 12. The connecting seat 16 corresponds to the coil pin 40. The connecting seat 16 is located near the first limiting part 151. The connecting seat 16 has a second through hole 161 corresponding to the coil pin 40. In this embodiment, the coil pin 40 passes through the second through hole 161 and is inserted into the control board 60. That is, the relay body 10 has a coil pin 40 extending in the Z-axis direction on the second side along the Y-axis direction and near the first limiting part 151.

[0075] Referring again to Figures 3-4, a limiting protrusion 17 is provided on the side of the cover plate 12 opposite to the seat 11, corresponding to the portion of the seat 11, to limit the shielding cover 50 along the X-axis and Y-axis directions. In this embodiment, the limiting protrusion 17 is located downstream of the shielding cover 50 in the sleeve direction and to the left of the first limiting part 15. The limiting protrusion 17 is used to fit with the limiting hole 51 mentioned below, thereby limiting the shielding cover 50. The limiting hole 51 is formed on the shielding cover 50.

[0076] In this embodiment, the first through hole 133 and the second through hole 161 are located at opposite ends of the diagonal of the cover plate 12, providing good isolation between strong and weak currents. The cover plate 12 is also provided with latches 18 extending towards the base 11 on both sides along the X-axis direction for engaging with the base 11.

[0077] Referring to Figure 4, the shielding cover 50 is adapted to be sleeved on the outside of the relay body 10 along the X direction, and is limited and connected to the cover plate 12 along the X-axis and Y-axis directions. In this embodiment, the shielding cover 50 is a U-shaped structure with the opening facing the left side of the relay body 10. The shielding cover 50 is at least partially locked between the two limiting parts 15, and is provided with a limiting hole 51 that matches the limiting protrusion 17. Therefore, the limiting protrusion 17 is located downstream of the shielding cover 50 in the sleeve direction.

[0078] In practical applications, the control board 60 is provided with multiple through holes, which correspond to the first through hole 133, the second through hole 161, and the positioning post 142, respectively. In this embodiment, the control board 60 is a PCB board.

[0079] In this embodiment, an isolation section 13 is provided on the first side of the relay body 10. The isolation section 13 is located between the load terminal 20 and the control board 60, so that the portion of the control board 60 extending to the side where the load terminal 20 is located can be isolated from the load electronics, and the creepage distance between them is increased. Therefore, electrical components can also be arranged on the portion of the control board 60 corresponding to the isolation section 13. Compared with related technologies, the effective area of ​​the control board 60 that can be used to install electrical components is increased, which avoids the need to increase the area of ​​the control board 60 to arrange electrical components, thereby reducing the area of ​​the control board 60, improving the space utilization of the control board 60, and reducing the cost of the control board 60. The isolation section 13 is provided with a first through hole 133 corresponding to the sampling pin 30, so that the sampling pin 30 can pass through the first through hole 133 of the isolation section 13 and connect to the control board 60. Since the sampling pin 30 is also a high voltage, the isolation section 13 can also isolate the high voltage of the sampling pin 30, thereby improving the strong and weak voltage isolation effect of the control board 60.

[0080] In this embodiment, when there is a gap between the end of the first through hole 133 facing the electronic control board 60 and the electronic control board 60, the portion of the sampling pin 30 located between the first through hole 133 and the electronic control board 60 will be exposed. Since the sampling pin 30 is connected to the load terminal 20, it is also subject to high voltage, which will undoubtedly affect the electrical components on the electronic control board 60. In this embodiment, the end face of the first through hole 133 near the electronic control board 60 is suitable for contacting the electronic control board 60. Thus, each first through hole 133 can reduce the high voltage interference of the corresponding sampling pin 30, further ensuring that electrical components can also be arranged on the electronic control board 60 near the sampling pin 30, further improving the space utilization of the electronic control board 60 and reducing the cost of the electronic control board 60.

[0081] In this embodiment, the isolation part 13 includes a body 131 and an isolation seat 132 extending along the Z-axis direction protruding from the body 131. A first through hole 133 is formed on the body 131 and the isolation seat 132 and extends along the Z-axis direction. Compared with the solution without the isolation seat 132, it is more advantageous to reduce the thickness of the body 131 along the Z-axis direction, thereby reducing the production material of the isolation part 13 and reducing the production cost.

[0082] In this embodiment, the relay body 10 is provided with a base 11 and a cover plate 12. The base 11 has an opening at the first end near the control board 60 along the Z-axis direction. The cover plate 12 covers the opening and is integrally formed with the isolation part 13. On the one hand, the isolation part 13 is integrally formed on the cover plate 12, which is more conducive to production and processing. On the other hand, it is not necessary to produce the isolation part 13 that separates the load terminal 20 and the control board 60 separately, nor is it necessary to consider the installation problem of this independently set isolation part 13 and the problem of poor isolation effect caused by the gap formed after installation. This is more conducive to reducing production and assembly processes and reducing costs.

[0083] In this embodiment, the cover plate 12 is also provided with a positioning part 14 on the side near the electronic control board 60. The positioning part 14 can position the electronic control board 60, reduce the occurrence of dimensional defects, improve the welding dimensional qualification rate, and reduce the number of rework and scrap rate.

[0084] In this embodiment, the positioning part 14 is formed on the isolation part 13, resulting in a smaller deviation between the sampling foot 30 and the control board 60, which is beneficial to improving the welding qualification rate of the sampling foot 30 and the control board 60. The structural design of the positioning seat 141 is beneficial to the precise positioning of the control board 60, further reducing the occurrence of dimensional defects.

[0085] In this embodiment, the arrangement of the first connecting segment 211 and the third connecting segment 221 facilitates the connection operation with the sampling pin 30. The structural arrangement of the first load terminal 21 and the second load terminal 22 ensures that the second connecting segment 212 and the fourth connecting segment 222 are far apart from each other, which facilitates the connection of the second connecting segment 212 and the fourth connecting segment 222 with external electrical connections. The projection planes of the second connecting segment 212 and the isolation part 13 in the direction perpendicular to the Z-axis are offset from each other. The projection planes of the fourth connecting segment 222 and the isolation part 13 in the direction perpendicular to the Z-axis overlap at least partially, and the isolation part 13 is provided with a notch 134 that avoids the fourth connecting segment 222. This not only facilitates the connection operation of the second connecting segment 212 and the fourth connecting segment 222 with external electrical connections, but also facilitates the miniaturization of the relay size.

[0086] In this embodiment, the shielding cover 50 can be used to shield external magnetic fields and protect the magnetic circuit part inside the relay, preventing external magnetic fields from affecting the magnetic circuit part and causing the armature assembly of the magnetic circuit part to malfunction. Since the shielding cover 50 is sleeved on the outside of the relay body 10 along the X-axis direction, the shielding cover 50 can be fixed relative to the relay body 10 simply by limiting the shielding cover 50 and the cover plate 12 along the X-axis and Y-axis directions. The limiting structure is set on the cover plate 12, which makes the processing more convenient and the structure simpler.

[0087] In this embodiment, two limiting parts 15 extend along the X-axis and are spaced apart along the Y-axis. The limiting protrusion 17 is located downstream of the shielding cover 50 in the mounting direction. The shielding cover 50 is at least partially engaged between the two limiting parts 15 and is provided with a limiting hole 51 that matches the limiting protrusion 17. Therefore, when the shielding cover 50 is fitted onto the relay body 10, the two limiting parts 15 limit the shielding cover 50 and guide the installation of the shielding cover 50, so that the shielding cover 50 can reliably move to the position where the limiting hole 51 matches the limiting protrusion 17, thereby making the installation of the shielding cover 50 easier and simpler.

[0088] In this embodiment, the coil pin 40 is a low-voltage circuit and is located on the second side of the relay body 10 along the Y-axis, away from the load terminal 20, to avoid interference from the load terminal 20 to the coil pin 40. The connector 16 is also close to the first limiting part 151, so the first limiting part 151 can also prevent the high-voltage part on the control board 60 from interfering with the coil pin 40. The connector 16 further shields the high-voltage part on the control board 60 from interfering with the coil pin 40.

[0089] In some exemplary embodiments, as shown in Figures 1-5, an electronic control component is also provided. The electronic control component includes a relay and an electronic control board 60, with the electronic control board 60 connected to the relay. The connection method has been described in detail in the foregoing embodiments and will not be repeated here.

[0090] In some exemplary embodiments, an electricity meter is also provided, which includes the above-described electronic control component and has the same technical advantages as the electronic control component.

[0091] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0092] The embodiments described above are merely illustrative of several implementation methods of this application, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent application. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these all fall within the protection scope of this application. Therefore, the protection scope of this patent application should be determined by the appended claims.

Claims

1. A relay for connection to an electronic control board (60), the relay comprising: Relay body (10); Load terminal (20), said load terminal (20) is located outside the first side of the relay body (10) along the Y-axis direction; And a sampling pin (30), which is located outside the first side of the relay body (10) along the Y-axis direction, and the sampling pin (30) is connected to the load terminal (20) and the control board (60); The relay is characterized in that it further includes: The relay body (10) has an isolation part (13) protruding from the first side along the Y-axis direction. The isolation part (13) is located between the load terminal (20) and the control board (60). The isolation part (13) has a first through hole (133) corresponding to the sampling pin (30) and allowing the sampling pin (30) to pass through.

2. A relay as described in claim 1, characterized in that, The end face of the first through hole (133) near the end of the electronic control board (60) is adapted to abut against the electronic control board (60).

3. A relay as described in claim 2, characterized in that, The control board (60) is located at the first end of the relay body (10) along the Z-axis; the sampling pin (30) extends along the Z-axis. The isolation part (13) includes a body (131) and an isolation seat (132), the isolation seat (132) extending along the Z-axis and protruding from the surface of the body (131); The body (131) is located between the load terminal (20) and the electronic control board (60) along the Z-axis direction; The first through hole (133) is formed on the body (131) and the isolation seat (132) and extends along the Z-axis direction.

4. A relay as described in claim 1, characterized in that, The relay body (10) is provided with a base (11) and a cover plate (12). The base (11) has an opening at the first end near the control board (60) along the Z-axis direction. The cover plate (12) is placed over the opening, and the cover plate (12) is integrally formed with the isolation part (13).

5. A relay as described in claim 4, characterized in that, The cover plate (12) has a positioning part (14) on the side near the electronic control board (60), and the positioning part (14) is used to position the electronic control board (60).

6. A relay as described in claim 5, characterized in that, The positioning part (14) is formed on the isolation part (13); the positioning part (14) includes a positioning seat (141) and a positioning post (142); The positioning seat (141) is fixed to the body (131), and the positioning post (142) protrudes from the positioning seat (141) along the Z-axis direction. The positioning seat (141) has an abutment surface (1411) at one end near the electronic control board (60). The abutment surface (1411) is adapted to abut against the electronic control board (60). The positioning post (142) is used to position the electronic control board (60).

7. A relay as described in claim 1, characterized in that, The relay includes two load terminals (20), which are spaced apart along the X-axis. The two load terminals (20) are respectively the first load terminal (21) and the second load terminal (22); The first load terminal (21) is provided with a first connecting section (211) and a second connecting section (212), both of which are sheet-like and connected as one piece. The first connecting section (211) extends along the Y-axis direction and is perpendicular to the X-axis direction. The first connecting section (211) is connected to the sampling pin (30). The second connecting section (212) is used for external electrical connection. The second load terminal (22) is provided with a third connecting section (221), a fourth connecting section (222) and a fifth connecting section (223), all of which are sheet-like and connected as one piece. The third connecting section (221) extends along the Y-axis direction and is perpendicular to the X-axis direction. The third connecting section (221) is connected to the sampling pin (30). The fourth connecting section (222) is used for electrical connection with the outside. The fifth connecting segment (223) is connected to the third connecting segment (221) at one end and extends away from the first connecting segment (211) along the X-axis direction at the other end. The fourth connecting segment (222) is connected to the fifth connecting segment (223) and extends away from the third connecting segment (221) along the Y-axis direction.

8. A relay as described in claim 1, characterized in that, The relay includes two load terminals (20), which are spaced apart along the X-axis. The two load terminals (20) are a first load terminal (21) and a second load terminal (22), respectively; the second load terminal (21) is provided with a second connection segment (212) for external electrical connection; the second load terminal (22) is provided with a fourth connection segment (222) for external electrical connection; The projection planes of the second connecting segment (212) and the isolation portion (13) in the direction perpendicular to the Z-axis are offset from each other; the projection planes of the fourth connecting segment (222) and the isolation portion (13) in the direction perpendicular to the Z-axis are at least partially overlapped, and the isolation portion (13) is provided with a notch (134) that is at least partially opposite to the fourth connecting segment (222) in the Z-axis direction.

9. A relay as described in claim 4, characterized in that, It also includes a shielding cover (50), which is adapted to be fitted around the relay body (10) in the X direction and to be limited and connected to the cover plate (12) in the X-axis and Y-axis directions.

10. A relay as described in claim 9, characterized in that, The cover plate (12) has two limiting parts (15) on the side away from the seat (11). The limiting parts (15) are strip-shaped and protrude from the cover plate (12). Two limiting parts (15) extend along the X-axis and are spaced apart along the Y-axis, and the shield (50) is at least partially engaged between the two limiting parts (15).

11. A relay as described in claim 10, characterized in that, Of the two limiting portions (15), the one furthest from the isolation portion (13) is the first limiting portion (151); The relay body (10) has a coil pin (40) on the second side along the Y-axis direction, and the coil pin (40) extends along the Z-axis direction and is located close to the first limiting part (151); The cover plate (12) has a protruding connecting seat (16) which is located near the first limiting part (151). The connecting seat (16) has a second through hole (161) corresponding to the coil pin (40). The coil pin (40) passes through the second through hole (161) and is inserted into the electronic control board (60).

12. A relay as described in claim 9, characterized in that, The cover plate (12) has a limiting protrusion (17) on the side away from the seat (11). The limiting protrusion (17) is located downstream of the shield (50) in the sleeve direction. The shield (50) has a limiting hole (51) that matches the limiting protrusion (17).

13. An electronic control component, characterized in that, Includes the relay and the electronic control board (60) as described in any one of claims 1-12.

14. An electricity meter, characterized in that, Includes the electronic control component as described in claim 13.

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