Relay, electric control assembly and electric meter

Abstract

The utility model discloses a relay, an electric control assembly and an electricity meter, the relay is used for being connected with an electric control board, the relay comprises a relay body, a load terminal and a sampling pin, the load terminal and the sampling pin are both located outside the first side of the relay body along the Y-axis direction, and the sampling pin is connected with the load terminal and the electric control board; an isolation part which is located between the load terminal and the electric control board and used for at least partially separating the load terminal from the electric control board is arranged on the first side, in the Y-axis direction, of the relay body in a protruding mode, and the isolation part is provided with first through holes corresponding to the sampling pins. The electric control assembly comprises the relay. The electric meter comprises the electric control assembly. When the electronic control board is applied, the space utilization rate of the electronic control board is high, the area is small and the cost is lower.

Description

Technical Field

[0001] This utility model relates to the field of relay technology, specifically to a relay, an electronic control component, and an electricity meter. Background Technology

[0002] 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, existing technologies often do not place electrical components on the part of the electronic control board corresponding to the load terminals. Instead, the electronic control board is made larger and the electrical components are placed in other locations. Therefore, the area of ​​the electronic control board in existing technologies is often large, resulting in a significant waste of space. Utility Model Content

[0003] The purpose of this utility model is to overcome the above-mentioned defects or problems in the background art and provide a relay, electronic control component and meter, which have high space utilization, small area and lower cost when applied.

[0004] To achieve the above objectives, the present invention and its preferred embodiments adopt the following technical solutions, but the embodiments are not limited to the following solutions:

[0005] Technical solution one and its related embodiments provide a relay for connecting to an electronic control board. The relay includes a relay body, a load terminal, and a sampling pin. The load terminal and the sampling pin are both located outside the first side of the relay body along the Y-axis direction. The sampling pin connects the load terminal and the electronic control board. The first side of the relay body along the Y-axis direction has an isolation portion located between the load terminal and the electronic control board, which is used to at least partially separate the load terminal and the electronic control board. The isolation portion has a first through hole corresponding to the sampling pin.

[0006] Based on technical solution one, there is also technical solution two. In technical solution two and its related embodiments, the end face of the first through hole near the electronic control board is adapted to abut against the electronic control board.

[0007] Based on technical solution two, there is also technical solution three. In technical solution three and its related embodiments, the electronic control board is located at the first end of the relay body along the Z-axis direction; the sampling pin extends along the Z-axis direction; the isolation part includes a body and an isolation seat protruding from the body and extending along the Z-axis direction, the body is located between the load terminal and the electronic control board and at least partially separates the load terminal and the electronic control board, and the first through hole is formed on the body and the isolation seat and extends along the Z-axis direction.

[0008] Based on technical solution three, there is also technical solution four. In technical solution four and its related embodiments, the relay body is provided with a base and a cover plate. The base has an opening at the first end near the electronic control board along the Z-axis direction. The cover plate covers the opening and is integrally formed with the isolation part.

[0009] Based on technical solution four, technical solution five is also provided. In technical solution five and its related embodiments, the cover plate is also provided with a positioning part for positioning the electronic control board on the side near the electronic control board.

[0010] Based on technical solution five, there is also technical solution six. In technical solution six and its related embodiments, the positioning part is formed on the isolation part; the positioning part includes a positioning seat fixed to the body and a positioning post protruding from the positioning seat along the Z-axis direction. The end of the positioning seat near the electronic control board is provided with an abutment surface suitable for abutting against the electronic control board, and the positioning post is used to position the electronic control board.

[0011] Based on technical solution six, technical solution seven is also provided. In technical solution seven and its related embodiments, the number of load terminals is two, and the two load terminals are arranged at intervals along the X-axis direction and are respectively the first load terminal and the second load terminal; the first load terminal has a sheet-like first connecting segment extending along the Y-axis direction and perpendicular to the X-axis direction, and a sheet-like second connecting segment for external electrical connection and integrated with the first connecting segment, and the sampling pin is connected to the first connecting segment; the second load terminal has a third connecting segment, a fourth connecting segment, and a fifth connecting segment integrated together, the third connecting segment... The fourth connecting segment extends along the Y-axis and is perpendicular to the X-axis. It is used for external electrical connection. One end of the fifth connecting segment is connected to the third connecting segment, and the other end extends along the X-axis away from the first connecting segment. The fourth connecting segment is connected to the fifth connecting segment and is away from the third connecting segment. The sampling pin is connected to the third connecting segment. 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 clearance notch to avoid the fourth connecting segment.

[0012] Based on any one of technical solutions four to seven, there is also a technical solution eight. In technical solution eight and its related embodiments, a shielding cover is further included. The shielding cover is adapted to be sleeved on the relay body along the X direction and limited and connected to the cover plate along the X-axis and Y-axis directions.

[0013] Based on technical solution eight, technical solution nine is also provided. In technical solution nine and its related embodiments, the side of the cover plate opposite to the seat body is provided with two limiting parts and a limiting protrusion; the limiting part is a strip-shaped structure protruding from the cover plate, the two limiting parts extend along the X-axis direction and are spaced apart along the Y-axis direction, and the limiting protrusion is located downstream of the shield cover sleeve direction; the shield cover is at least partially engaged between the two limiting parts and is provided with a limiting hole adapted to the limiting protrusion.

[0014] Based on technical solution nine, technical solution ten is also provided. In technical solution ten and its related embodiments, the one of the two limiting parts that is far from the isolation part is defined as the first limiting part; the second side of the relay body along the Y-axis direction is also provided with a coil pin extending along the Z-axis direction near the first limiting part, and a connecting seat corresponding to the coil pin is protruding on the cover plate. The connecting seat is provided 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.

[0015] Technical solution eleven and its related embodiments provide an electronic control component, including a relay and an electronic control board as described in any one of technical solutions one to ten.

[0016] Technical solution 12 and its related embodiments provide an electricity meter, including the electronic control component described in technical solution 11.

[0017] As can be seen from the above description of the present invention and its preferred embodiments, compared with the prior art, the technical solution of the present invention and its preferred embodiments have the following beneficial effects due to the adoption of the following technical means:

[0018] In the first technical solution and its preferred embodiment, the isolation part allows the portion of the control board extending to the load terminal to be isolated from the load electronics, increasing the creepage distance between them. Therefore, electrical components can also be arranged on the portion of the control board corresponding to the isolation part. Compared with the prior art, the effective area of ​​the control board for installing electrical components is increased, thus avoiding 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 part 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 part and connect to the control board. Since the sampling pin is also a high voltage, the isolation part can also isolate the high voltage of the sampling pin, thereby improving the strong and weak voltage isolation effect of the control board.

[0019] In the second technical solution and its preferred embodiment, when there is a gap between the first through hole and the control board, the portion of the sampling pin located between the first through hole and the control board will also 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. Each first through hole can shield the corresponding sampling pin from external interference, further ensuring that electrical components can also be arranged near the sampling pin on the control board, further improving the space utilization of the control board and reducing the cost of the control board.

[0020] In the third technical solution and its preferred embodiment, the isolation part includes a body and an isolation seat protruding from the body and extending along the Z-axis direction. A first through hole is formed on the body and the isolation seat and extends along the Z-axis direction. Compared with the solution without an isolation seat, it is more beneficial to reduce the thickness of the body along the Z-axis direction, thereby reducing the production material of the isolation part and reducing the production cost.

[0021] In technical solution four and its preferred embodiment, 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, compared with the solution of separately producing the partition separating the load terminal and the control board, there is no need to produce the partition, nor is there any need to consider the problem of poor isolation effect caused by the installation of this partition and the installation gap. This is more conducive to reducing production and assembly processes and reducing costs.

[0022] In technical solution five and its preferred embodiment, the cover plate is also 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.

[0023] In technical solution six and its preferred embodiments, the positioning part is formed on the isolation part, resulting in smaller deviations between the sampling pin and the control board, which is beneficial to improving 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.

[0024] In technical solution seven and its preferred embodiments, the arrangement of the first connecting segment and the third connecting segment facilitates connection with the sampling pin; the structural arrangement of the first load terminal and the second load terminal makes the second connecting segment and the fourth connecting segment far apart from each other, which is beneficial for the second connecting segment and the fourth connecting segment to be electrically connected to the outside. The projection plane of the second connecting segment and the isolation part in the direction perpendicular to the Z-axis is offset from each other; the projection plane of the fourth connecting segment and the isolation part in the direction perpendicular to the Z-axis is at least partially overlapping, and the isolation part is provided with a clearance notch to avoid the fourth connecting segment. This is beneficial for the second connecting segment and the fourth connecting segment to be electrically connected to the outside, and also for the miniaturization of the relay size.

[0025] In technical solution eight and its preferred embodiments, the shielding cover can be used to shield external magnetic fields, protecting the magnetic circuit inside 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 Y-axis, the shielding cover and the cover plate can be positioned relative to the relay body by limiting their movement along the X and Y axes. The limiting structure is located on the cover plate, making processing more convenient and the structure simpler.

[0026] In technical solution nine and its preferred embodiment, 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 is provided with limiting holes that match the limiting protrusion. Therefore, when the shielding cover is fitted into the relay body, the two limiting parts limit and guide the shielding cover until the limiting hole matches the limiting protrusion. The installation of the shielding cover is easier and simpler.

[0027] In the tenth technical solution and its preferred embodiment, the coil pin is a low voltage and is located on the second side of the relay body along the Y-axis, away from the load terminal, which is more conducive to avoiding interference from the load terminal to the coil pin. 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 pin. The setting of the connector further shields the high voltage part on the control board from interfering with the coil pin.

[0028] Technical solution eleven and its preferred embodiments have the technical advantages of any one of technical solutions one to ten.

[0029] Technical solution 12 and its preferred embodiments have the technical advantages of technical solution 11. Attached Figure Description

[0030] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the following description of the embodiments will be briefly introduced. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0031] Figure 1 This is a schematic diagram of the electronic control component according to an embodiment of this application;

[0032] Figure 2 for Figure 1 The right view;

[0033] Figure 3 This is a schematic diagram of the relay concealed shielding cover according to an embodiment of this application;

[0034] Figure 4 This is an exploded perspective view of the relay in the embodiment of this application;

[0035] Figure 5 for Figure 3 Top view.

[0036] Explanation of key figure labels:

[0037] Relay body 10; base 11; cover plate 12; isolation part 13; body 131; isolation seat 132; first through hole 133; clearance notch 134; positioning part 14; positioning seat 141; abutment surface 1411; positioning post 142; limiting part 15; first limiting part 151; connecting seat 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

[0038] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are preferred embodiments of the present utility model and should not be considered as excluding other embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the scope of protection of the present utility model.

[0039] 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.

[0040] Unless otherwise expressly defined, the use of terms such as "first," "second," or "third" in the claims, description, and drawings of this utility model is for distinguishing different objects and not for describing a specific order.

[0041] Unless otherwise expressly defined, in the claims, description, and accompanying drawings of this utility model, 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 utility model and simplifying the description. It does not 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 protection scope of this utility model.

[0042] Unless otherwise expressly defined, the terms "fixed connection" or "fixed connection" used in the claims, description and drawings of this utility model 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 through other devices or components.

[0043] In the claims, description and accompanying drawings of this utility model, the terms "comprising", "having", and variations thereof are used to mean "including but not limited to".

[0044] See Figure 1-2 , Figure 1-2An electronic control assembly is shown, including a relay and 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 is prior art and will not be described in detail here. 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 electronic control board 60. The coil pin 40 connects the coil assembly inside the relay body 10 and the electronic 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 direction, and the coil pin 40 is close to the second side of the relay body 10 along the Y-axis direction. In this embodiment, the control board 60 is located at the first end (upper end) of the relay body 10 along the Z-axis direction. The sampling pin 30 and the coil pin 40 both extend along the Z-axis direction and are inserted into and soldered to the control board 60 along the Z-axis direction. In this embodiment, the sampling pin 30 and the coil pin 40 mainly transmit signals to the control board 60. Figure 1-2 In this configuration, there are 4 sampling pins 30 and 2 coil pins 40, but this is not a limitation.

[0045] Specifically, see Figure 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. The cover plate 12 covers the opening and has an integrally formed isolation part 13. In practical applications, the base 11 and the cover plate 12 are fixedly connected to 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 preferably made of plastic material.

[0046] In this embodiment, the cover plate 12 is generally rectangular, and the isolation portion 13 protrudes from the first side of the relay body 10 along the Y-axis direction and is used to at least partially separate the load terminal 20 and the control board 60. That is, the first side of the relay body 10 along the Y-axis direction is provided with an isolation portion 13 for at least partially separating the load terminal 20 and the control board 60. The isolation portion 13 is provided with a first through hole 133 corresponding to the sampling pin 30. In this embodiment, the end face of the first through hole 133 near the control board 60 is adapted to abut against the control board 60. The isolation portion 13 includes a body 131 and an isolation seat 132 protruding from the body 131 and extending along the Z-axis direction. The body 131 is located between the load terminal 20 and the control board 60 and at least partially separates the load terminal 20 and the 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 direction. Figure 3-5In the middle, there are two isolation seats 132. The two isolation seats 132 are arranged at intervals along the X-axis. One isolation seat 132 is located at one end of the isolation part 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.

[0047] In this embodiment, see Figure 4 The number of load terminals 20 is two, and the two load terminals 20 are arranged at intervals along the X-axis direction and are respectively the first load terminal 21 and the second load terminal 22. The first load terminal 21 has a sheet-like first connecting section 211 extending along the Y-axis direction and perpendicular to the X-axis direction, and a sheet-like second connecting section 212 for external electrical connection and integrally formed with the first connecting section 211. The second connecting section 212 is integrally formed with the upper end of the first connecting section 211 and perpendicular to the Z-axis direction. Three sampling pins 30 are connected to the first connecting section 211. The second load terminal 22 has a third connecting section 221, a fourth connecting section 222, and a fifth connecting section 223 integrally formed. The third connecting section 221 extends along the Y-axis direction and is perpendicular to the X-axis direction. The fourth connecting section 222 is used for external electrical connection. The fifth connecting section 223 extends along the Y-axis direction and is perpendicular to the X-axis direction. The fifth connecting section 222 extends along the Y-axis direction and is perpendicular to the X-axis direction. The fourth connecting section 222 is used for external electrical connection. The fifth connecting section 222 extends along the Y-axis direction and is perpendicular to the X-axis direction. The second ... second connecting section 222 extends along the Y-axis direction and is perpendicular to the X-axis direction. The second connecting section 222 extends along the Y-axis direction and is perpendicular to the X-axis direction. The second connecting section 222 extends along the Y-axis direction and is perpendicular to the X-axis direction. The second connecting section 222 extends along One end of 223 is connected to the third connecting segment 221, and the other end extends away from the first connecting segment 211 along the X-axis. The fourth connecting segment 222 is connected to the fifth connecting segment 223 and away from the third connecting segment 221. In this embodiment, the fifth connecting segment 223 is perpendicular to the Y-axis, and the fourth connecting segment 222 is perpendicular to the Z-axis and is integrated with the upper end of the fifth connecting segment 223. One sampling pin 30 is connected to the third connecting segment 221. 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. In practical applications, the fourth connecting segment 222 needs to be welded to an external electrical connection piece. Therefore, the isolation part 13 is provided with a clearance notch 134 that avoids the fourth connecting segment 222.

[0048] See Figure 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. 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.

[0049] See also Figure 3-4The cover plate 12, on the side opposite to the base 11, is provided with two limiting portions 15 and a limiting protrusion 17 to limit the shield 50 along the X-axis and Y-axis directions. The limiting portion 15 is a strip-shaped structure protruding from the cover plate 12. In this embodiment, the two limiting portions 15 extend along the Y-axis and are spaced apart along the Y-axis. The one of the two limiting portions 15 that is far from the isolation portion 13 is defined as the first limiting portion 151. The first limiting portion 151 is close to the second side of the relay body 10 along the Y-axis direction. The limiting protrusion 17 is located on the left side of the first limiting portion 15. The limiting protrusion 17 is used to fit with the limiting hole 51 mentioned below to limit the shield 50.

[0050] The cover plate 12 has a protruding connecting seat 16 corresponding to the coil pin 40. The connecting seat 16 is located near the first limiting part 151 and 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 second side of the relay body 10 along the Y-axis direction is also near the first limiting part 151 and has a coil pin 40 extending along the Z-axis direction.

[0051] 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 to engage with the base 11.

[0052] See Figure 4 The shield 50 is adapted to be sleeved on the outside of the relay body 10 along the X direction and limited and connected to the cover plate 12 along the X-axis and Y-axis directions. In this embodiment, the shield 50 is a U-shaped structure with the opening facing the left side of the relay body 10. The shield 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 shield 50 in the sleeve direction.

[0053] In practical applications, the control board 60 is provided with through holes corresponding to the first through hole 133, the second through hole 161, and the positioning post 142. In this embodiment, the control board 60 is a PCB board.

[0054] In this embodiment, the isolation part 13 allows the portion of the control board 60 extending to the load terminal 20 to be isolated from the load electronics, increasing the creepage distance between them. Therefore, electrical components can also be arranged on the portion of the control board 60 corresponding to the isolation part 13. Compared with the prior art, the effective area of ​​the control board 60 for installing electrical components is increased, thus avoiding 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 part 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 part 13 and connect to the control board 60. Since the sampling pin 30 is also a high voltage, the isolation part 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.

[0055] In this embodiment, when there is a gap between the first through hole 133 and the control board 60, the portion of the sampling pin 30 located between the first through hole 133 and the control board 60 will also be exposed. Since the sampling pin 30 is connected to the load terminal 20, it is also a high-voltage circuit, which will undoubtedly affect the electrical components on the control board 60. In this embodiment, the end face of the first through hole 133 near the control board 60 is suitable for abutting against the control board 60. Each first through hole 133 can shield the corresponding sampling pin 30 from external interference, further ensuring that electrical components can also be arranged on the control board 60 near the sampling pin 30, further improving the space utilization of the control board 60 and reducing the cost of the control board 60.

[0056] 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.

[0057] In this embodiment, the relay body 10 is provided with a base 11 and a cover plate 12. The base 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 has an integrally formed 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, compared with the solution of separately producing the partition separating the load terminal 20 and the control board 60, there is no need to produce the partition, and there is no need to consider the problem of poor isolation effect caused by the installation of this partition and the installation gap. This is more conducive to reducing production and assembly processes and reducing costs.

[0058] In this embodiment, the cover plate 12 is also provided with a positioning part 14 for positioning the electronic control board 60 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 dimension qualification rate, and reduce the number of rework and scrap rate.

[0059] 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.

[0060] 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 keeps the second connecting segment 212 and the fourth connecting segment 222 far apart from each other, which is beneficial for the second connecting segment 212 and the fourth connecting segment 222 to be electrically connected to the outside. The projection plane of the second connecting segment 212 and the isolation part 13 in the direction perpendicular to the Z-axis is offset from each other; the projection plane of the fourth connecting segment 222 and the isolation part 13 in the direction perpendicular to the Z-axis at least partially overlaps, and the isolation part 13 is provided with a clearance notch 134 to avoid the fourth connecting segment 222. This is beneficial for the second connecting segment 212 and the fourth connecting segment 222 to be electrically connected to the outside, and also for the miniaturization of the relay size.

[0061] 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 Y-axis direction, the shielding cover 50 and the cover plate 12 can be limited along the X-axis and Y-axis directions to fix the shielding cover 50 relative to the relay body 10. The limiting structure is set on the cover plate 12, which makes the processing more convenient and the structure simpler.

[0062] 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 it until the limiting hole 51 matches the limiting protrusion 17. The installation of the shielding cover 50 is easier and simpler.

[0063] In this embodiment, the coil pin 40 is a low-voltage circuit. The coil pin 40 is located on the second side of the relay body 10 along the Y-axis direction, far away from the load terminal 20. This is more conducive to avoiding interference from the load terminal 20 to the coil pin 40. The connector 16 is also close to the first limiting part 151. Therefore, the first limiting part 151 can also avoid interference from the high-voltage part on the control board 60 to the coil pin 40. The connection 16 further shields the high-voltage part on the control board 60 from interfering with the coil pin 40.

[0064] This embodiment also provides an electricity meter, which includes the above-mentioned electronic control component and has the same technical advantages as the electronic control component.

[0065] The foregoing description of the specifications and embodiments is intended to explain the scope of protection of this utility model, but does not constitute a limitation on the scope of protection of this utility model. Modifications, equivalent substitutions, or other improvements to the embodiments of this utility model or a portion thereof that can be obtained by those skilled in the art through logical analysis, reasoning, or limited experimentation, based on the teachings of this utility model or the foregoing embodiments, should all be included within the scope of protection of this utility model.

Claims

1. A relay for connecting with an electronic control board (60), the relay comprising a relay body (10), a load terminal (20) and a sampling leg (30), the load terminal (20) and the sampling leg (30) are both located outside the first side of the relay body (10) along the Y axis direction, the sampling leg (30) connects the load terminal (20) and the electronic control board (60); characterized in that, The relay body (10) is provided with an isolation portion (13) between the load terminal (20) and the electric control board (60) and used for at least partially separating the load terminal (20) and the electric control board (60) on the first side of the relay body (10) along the Y-axis direction, and the isolation portion (13) is provided with a first through hole (133) corresponding to the sampling leg (30).

2. A relay according to claim 1, characterised in that The end surface of the first through hole (133) close to the electric control board (60) is adapted to abut against the electric control board (60).

3. A relay according to claim 2, wherein the magnetic field generated by the coil is arranged to be substantially uniform across the face of the armature. The electric control board (60) is located at the first end of the relay body (10) along the Z-axis direction; the sampling leg (30) extends along the Z-axis direction; the isolation portion (13) comprises a body (131) and an isolation seat (132) extending along the Z-axis direction and protruding from the body (131), the body (131) is located between the load terminal (20) and the electric control board (60) and at least partially separates the load terminal (20) and the electric control board (60), and 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 according to claim 3, wherein the magnetic field generated by the coil is arranged to be substantially uniform across the face of the armature. The relay body (10) is provided with a seat body (11) and a cover plate (12), the seat body (11) is opened at the first end close to the electric control board (60) along the Z-axis direction, and the cover plate (12) is covered on the opening and integrally formed with the isolation portion (13).

5. A relay according to claim 4, wherein the magnetic circuit is formed by a plurality of magnetic bodies, and the magnetic bodies are arranged in a ring shape. The side of the cover plate (12) close to the electric control board (60) is further provided with a positioning portion (14) used for positioning the electric control board (60).

6. A relay according to claim 5, wherein the magnetic field generated by the coil is arranged to be substantially uniform across the face of the armature. The positioning portion (14) is formed on the isolation portion (13); the positioning portion (14) comprises a positioning seat (141) fixed to the body (131) and a positioning column (142) protruding from the positioning seat (141) along the Z-axis direction, one end of the positioning seat (141) close to the electric control board (60) is provided with an abutting surface (1411) adapted to abut against the electric control board (60), and the positioning column (142) is used for positioning the electric control board (60).

7. A relay according to claim 6, wherein the magnetic circuit is formed by a magnetic core (2) and a magnetic yoke (3). The number of the load terminals (20) is two, and the two load terminals (20) are arranged along the X-axis direction and are respectively a first load terminal (21) and a second load terminal (22); the first load terminal (21) is provided with a first connecting section (211) in the shape of a sheet extending along the Y-axis direction and perpendicular to the X-axis direction and a second connecting section (212) in the shape of a sheet for external electrical connection and integrated with the first connecting section (211), and the sampling leg (30) is connected to the first connecting section (211); the second load terminal (22) is provided with a third connecting section (221), a fourth connecting section (222) and a fifth connecting section (223) integrated together, the third connecting section (221) extends along the Y-axis direction and is perpendicular to the X-axis direction, the fourth connecting section (222) is used for external electrical connection; one end of the fifth connecting section (223) is connected to the third connecting section (221), and the other end extends away from the first connecting section (211) along the X-axis direction, the fourth connecting section (222) is connected to the fifth connecting section (223) and away from the third connecting section (221), and the sampling leg (30) is connected to the third connecting section (221); The second connecting section (212) and the isolation portion (13) are staggered with each other in a projection plane perpendicular to the Z-axis direction; the fourth connecting section (222) and the isolation portion (13) at least partially overlap in a projection plane perpendicular to the Z-axis direction, and the isolation portion (13) is provided with an avoiding gap (134) avoiding the fourth connecting section (222).

8. A relay according to any one of claims 4-7, c h a r a c t e r i s e d in that Further comprising a shielding cover (50) adapted to be sleeved on the relay body (10) along the X direction and connected to the cover plate (12) along the X-axis direction and the Y-axis direction.

9. A relay according to claim 8, wherein the relay is a latching relay. The side of the cover plate (12) away from the seat body (11) is provided with two limiting portions (15) and a limiting protrusion (17) corresponding to part of the seat body (11); the limiting portions (15) are in the form of strip-shaped structures protruding from the cover plate (12), and the two limiting portions (15) extend along the X-axis direction and are arranged along the Y-axis direction; the limiting protrusion (17) is located downstream of the sleeving direction of the shielding cover (50); the shielding cover (50) is at least partially clamped between the two limiting portions (15) and is provided with a limiting hole (51) matched with the limiting protrusion (17).

10. A relay according to claim 9, wherein the relay is a latching relay. One of the two limiting portions (15) away from the isolation portion (13) is defined as a first limiting portion (151); the relay body (10) is further provided with a coil pin (40) extending along the Z-axis direction on the second side along the Y-axis direction and close to the first limiting portion (151); the cover plate (12) is further provided with a connecting seat (16) corresponding to the coil pin (40); the connecting seat (16) is arranged close to the first limiting portion (151) and is provided with a second through hole (161) corresponding to the coil pin (40); the coil pin (40) penetrates through the second through hole (161) and is inserted into the electric control board (60).

11. An electrically controlled assembly, characterized by The relay comprises the electric control board (60) and the relay according to any one of claims 1-10.

12. An electricity meter characterised in that, The electrically controlled assembly of claim 11. The electrically controlled assembly of claim 12.

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