Shunt, relay and electronic metering device

Abstract

The present invention relates to the technical field of electric power. Provided are a shunt, a relay and an electronic metering device. The shunt comprises a shunt body and a heat dissipation structure, wherein the shunt body comprises a metering collection portion; and the heat dissipation structure comprises an insulating heat dissipation member, the insulating heat dissipation member is arranged on the shunt body, and at least part of the insulating heat dissipation member is arranged corresponding to the metering collection portion. Since at least part of the insulating heat dissipation member is arranged corresponding to the metering collection portion, the insulating heat dissipation member can absorb some of the heat, that is, a heat dissipation channel is added around the metering collection portion, thereby achieving a good heat dissipation effect and reducing the risk of burnout of the metering collection portion caused by an excessive temperature rise. In addition, the insulating heat dissipation member is made of an insulating material and has a certain insulation effect. The insulating heat dissipation member has the functions of current insulation and isolation, such that a current is not shunted to the insulating heat dissipation member, but is transmitted along the metering collection portion only, thereby improving the metering accuracy of the metering collection portion.

Description

Shunts, relays and electronic measuring equipment

[0001] This disclosure claims priority to Chinese patent application No. 202311523741.3 filed on November 15, 2023, the entire contents of which are incorporated herein by reference. Technical Field

[0002] The present invention generally relates to the field of electric power technology, and in particular to a shunt plate, a relay and an electronic metering device. Background Art

[0003] Shunts, also known as shunts, are widely used in electronic measurement and sampling technology, such as in electronic energy meters. Electronic energy meters sample the user's power supply voltage and current in real time. Using a dedicated energy meter integrated circuit, these samples are processed and multiplied to produce a pulse output proportional to the energy. This pulse is then displayed on a meter or digital display. Shunts are typically connected to the measurement circuit as the sampling component of an electronic energy meter. Prior art shunts for electronic energy meters typically include a metering and sampling section and conductive sections connected to both ends of the section. These conductive sections are then connected to the output terminals of the electronic meter relay. If the relay is continuously loaded, significant heat is generated at the contact point between the dynamic and static spring assemblies. This heat is then transferred to the metering and sampling section, which is typically made of manganese copper. Because manganese copper has a greater resistance than pure copper for a given current-carrying area, this leads to a higher temperature rise and significant heating, affecting the metering accuracy of the metering and sampling section. In particular, when the temperature rises to a certain level, the metering and sampling section cannot withstand the load, causing it to burn out and fracture, posing a significant safety hazard.

[0004] Summary of the Invention

[0005] The present invention provides a shunt plate, a relay and an electronic metering device, which improve the heat dissipation effect and the measurement collection accuracy.

[0006] According to a first aspect of the present invention, a diverter is provided, comprising a diverter body and a heat dissipation structure, wherein the diverter body comprises a metering and collecting portion; the heat dissipation structure comprises an insulating heat dissipation element, which is arranged on the diverter body, and the insulating heat dissipation element is at least partially arranged corresponding to the metering and collecting portion.

[0007] In some embodiments, the insulating heat sink includes a first heat dissipation portion, and the first heat dissipation portion is provided corresponding to the measurement and collection portion.

[0008] In some embodiments, a side of the first heat dissipation portion facing the measurement and collection portion is in contact with the measurement and collection portion.

[0009] In some embodiments, the diverter body further includes a conductive portion, which is arranged at at least one end of the metering and collecting portion along the length direction of the diverter body; the insulating heat dissipation component further includes a first connecting portion, which is arranged at at least one end of the first heat dissipation portion along the length direction of the diverter body, and the first connecting portion is correspondingly connected to the conductive portion.

[0010] In some embodiments, two of the conductive parts are arranged at both ends of the metering and collecting part along the length direction of the diverter body, two of the first connecting parts are arranged at both ends of the first heat dissipation part along the length direction of the diverter body, one of the conductive parts is provided with a contact, and one of the first connecting parts is arranged between the first heat dissipation part and the contact.

[0011] In some embodiments, the metering and collecting part includes a main body and a sampling part, wherein the two ends of the main body along the length direction of the shunt body are respectively connected to the two conductive parts, and the sampling part is connected to one side of the main body along the width direction of the shunt body.

[0012] In some embodiments, a projection of the heat dissipation structure relative to a second reference plane and a projection of the sampling portion relative to the second reference plane do not overlap; wherein the second reference plane is perpendicular to a width direction of the diverter plate body.

[0013] In some embodiments, two first connection portions are provided at two ends of the first heat dissipation portion along the length direction of the diverter plate body, and the collecting portion is provided between the two first connection portions.

[0014] In some embodiments, the heat dissipation structure further includes a metal heat sink, which is arranged on the diverter body and corresponds to the metering and collecting part, and the insulating heat sink is arranged between the diverter body and the metal heat sink.

[0015] In some embodiments, the insulating heat sink is respectively attached to the diverter body and the metal heat sink on both sides along the thickness direction of the diverter.

[0016] In some embodiments, the insulating heat sink includes a first heat sink, which is arranged corresponding to the measurement and collection part; the metal heat sink includes a second heat sink, which is arranged corresponding to the measurement and collection part.

[0017] In some embodiments, the diverter body further includes a conductive portion, which is arranged at at least one end of the metering and collecting portion along the length direction of the diverter body; the insulating heat sink further includes a first connecting portion, which is arranged at at least one end of the first heat dissipation portion along the length direction of the diverter body; the metal heat sink further includes a second connecting portion, which is arranged at at least one end of the second heat dissipation portion along the length direction of the diverter body, and the first connecting portion and the second connecting portion are both connected to the conductive portion.

[0018] In some embodiments, the first connecting portion is disposed between the second connecting portion and the conductive portion on both sides along the thickness direction of the shunt and is respectively in contact with the second connecting portion and the conductive portion.

[0019] In some embodiments, there are multiple insulating heat sinks, and multiple insulating heat sinks are arranged on at least one side of the diverter body along the thickness direction of the diverter body; and / or, there are multiple metal heat sinks, and multiple metal heat sinks are arranged on at least one side of the diverter body along the thickness direction of the diverter body.

[0020] In some embodiments, a plurality of the metal heat sinks located on the same side of the diverter body along the thickness direction of the diverter body are stacked along the thickness direction of the diverter body; and / or a plurality of the insulating heat sinks located on the same side of the diverter body along the thickness direction of the diverter body are stacked along the thickness direction of the diverter body.

[0021] In some embodiments, the insulating heat sink is made of hard material and / or soft material.

[0022] In some embodiments, the insulating heat dissipation element is plastic silicone.

[0023] According to a second aspect of the present invention, an embodiment of the present invention further provides a relay, comprising the above-mentioned shunt plate.

[0024] In some embodiments, the diverter plate body is a static spring plate.

[0025] According to a third aspect of the present invention, an embodiment of the present invention further provides an electronic metering device, characterized in that it includes the above-mentioned shunt plate or the above-mentioned relay.

[0026] In some embodiments, a relay base is further included, and the heat dissipation structure and the relay base abut against each other on one side thereof that is close to each other along the length direction of the shunt plate body.

[0027] One embodiment of the present invention has the following advantages or beneficial effects:

[0028] In the shunt, relay, and electronic metering device provided by the embodiments of the present invention, when the shunt body heats up, the insulating heat sink, at least partially aligned with the metering and collecting unit, absorbs some of the heat. This effectively adds a heat dissipation channel around the metering and collecting unit, resulting in effective heat dissipation and reducing the risk of burning due to excessive temperature rise in the metering and collecting unit. Furthermore, the insulating heat sink, made of an insulating material and having a certain insulating effect, insulates and isolates the current. Current is not diverted to the insulating heat sink, but rather is transmitted only along the metering and collecting unit, improving the metering accuracy of the metering and collecting unit. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] For a better understanding of the present invention, reference may be made to the embodiments shown in the following drawings. The components in the drawings are not necessarily to scale, and related elements may be omitted in order to emphasize and clearly illustrate the technical features of the present invention. In addition, related elements or components may have different arrangements as known in the art. In addition, in the drawings, the same reference numerals represent the same or similar components in each drawing. The above and other features and advantages of the present invention will become more apparent by describing in detail its exemplary embodiments with reference to the accompanying drawings.

[0030] in:

[0031] FIG1 is a schematic structural diagram of a contact assembly of a relay provided in accordance with a first embodiment of the present invention;

[0032] FIG2 shows a structural diagram of a diverter sheet provided in accordance with the first embodiment of the present invention;

[0033] FIG3 shows a second structural diagram of a shunt sheet provided in the first embodiment of the present invention;

[0034] FIG4 is a schematic structural diagram of a heat dissipation structure in a shunt sheet provided in a first embodiment of the present invention;

[0035] FIG5 shows a first structural diagram of a relay provided in accordance with the first embodiment of the present invention;

[0036] FIG6 shows a second structural diagram of a relay provided in accordance with the first embodiment of the present invention;

[0037] FIG7 shows a first structural diagram of a shunt sheet provided in the second embodiment of the present invention;

[0038] FIG8 shows a second structural diagram of a shunt sheet provided in the second embodiment of the present invention;

[0039] FIG9 shows a first structural diagram of a heat dissipation structure in a shunt sheet provided in a second embodiment of the present invention;

[0040] FIG10 shows a first structural diagram of another form of a shunt sheet provided in the second embodiment of the present invention;

[0041] FIG11 shows a second structural diagram of another form of a shunt sheet provided in the second embodiment of the present invention;

[0042] FIG12 shows a first structural diagram of another form of a shunt plate provided in the second embodiment of the present invention;

[0043] FIG13 shows a second structural diagram of another form of the shunt plate provided in the second embodiment of the present invention.

[0044] The description of the accompanying drawings is as follows:

[0045] 100. Relay base; 10. Shunt body; 20. Heat dissipation structure; 30. Connector; 11. Measuring and collecting part; 111. Main body; 112. Sampling part; 12. Conductive part; 121. Contact; 21. Insulating heat dissipation part; 211. First heat dissipation part; 212. First connecting part; 210. First gap; 22. Metal heat dissipation part; 221. Second heat dissipation part; 222. Second connecting part; 220. Second gap. DETAILED DESCRIPTION

[0046] The following will be combined with the accompanying drawings in the exemplary embodiments of the present invention to clearly and completely describe the technical solutions in the exemplary embodiments of the present invention. The exemplary embodiments described herein are for illustrative purposes only and are not intended to limit the scope of protection of the present invention. Therefore, it should be understood that various modifications and changes can be made to the exemplary embodiments without departing from the scope of protection of the present invention.

[0047] In the description of the present invention, unless otherwise expressly specified or limited, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance; the term "plurality" refers to two or more; and the term "and / or" includes any and all combinations of one or more of the associated listed items. In particular, reference to "the" or "an" object is also intended to mean one of a possible plurality of such objects.

[0048] Unless otherwise specified or explained, the terms "connect," "fixed," etc. should be understood broadly. For example, "connected" may refer to a fixed connection, a detachable connection, an integral connection, an electrical connection, or a signal connection; and "connected" may refer to a direct connection or an indirect connection through an intermediary. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on specific circumstances.

[0049] Furthermore, in the description of the present invention, it should be understood that the directional words such as "upper", "lower", "inner", and "outer" described in the exemplary embodiments of the present invention are described based on the perspectives shown in the accompanying drawings and should not be understood as limiting the exemplary embodiments of the present invention. It should also be understood that, in the context, when it is mentioned that an element or feature is connected to another element (one or more) "upper", "lower", or "inner", "outer", it can not only be directly connected to the other (one or more) elements "upper", "lower", or "inner", "outer", but can also be indirectly connected to the other (one or more) elements "upper", "lower", "inner", "outer" through an intermediate element.

[0050] Example embodiments will now be described more fully with reference to the accompanying drawings. However, example embodiments can be embodied in many forms and should not be construed as limited to the embodiments set forth herein; rather, these embodiments are provided so that this disclosure will be thorough and complete and will fully convey the concepts of the example embodiments to those skilled in the art. Like reference numerals in the figures represent like or similar structures, and thus their detailed description will be omitted.

[0051] Example 1

[0052] This embodiment provides a relay, as shown in Figures 1 and 2, which includes a contact assembly, which includes a shunt. The shunt is usually connected to a measurement circuit as a sampling component of a measuring instrument.

[0053] The shunt piece is specifically a static reed piece and / or a dynamic reed piece, and the dynamic reed piece and the static reed piece are in contact or separated. When the dynamic reed piece and the static reed piece are in contact, the load current flows into the static reed piece and flows out through the dynamic reed piece, thereby achieving load connection.

[0054] As shown in Figures 1 and 2, the diverter includes a diverter body 10. The length direction of the diverter body 10 is marked with the X direction, the width direction of the diverter body 10 is marked with the Z direction, and the thickness direction of the diverter body 10 is marked with the Y direction. The X direction, Y direction and Z direction are perpendicular to each other. The X direction, Y direction and Z direction only represent spatial directions and have no practical meaning.

[0055] Specifically, as shown in Figures 1-2, the shunt body 10 can be a static spring. The shunt body 10 includes a metering and collecting portion 11 and a conductive portion 12. The conductive portion 12 is disposed at at least one end of the metering and collecting portion 11 along the length of the shunt body 10. For example, two conductive portions 12 are disposed at either end of the metering and collecting portion 11 along the length of the shunt. One conductive portion 12 is connected to an external load, while the other conductive portion 12 is fixed to the relay body. The external load current flows through one conductive portion 12 and then through the metering and collecting portion 11 to the other conductive portion 12.

[0056] The metering and acquisition unit 11 is a precision module used for current detection. If the relay is loaded for an extended period, a significant amount of heat will be generated at the contact point between the dynamic and static reeds. This heat will be transferred to the metering and acquisition unit 11, which is typically made of manganese copper. Because manganese copper has a higher resistance than pure copper for a given current-carrying area, this resistor experiences a higher temperature rise and significant heating, affecting the metering accuracy of the metering and acquisition unit 11. In particular, when the temperature rises to a certain level, the metering and acquisition unit 11 can no longer withstand the load, causing it to burn out and fracture, posing a significant safety hazard.

[0057] To this end, as shown in Figures 1-2 , the shunt plate further includes a heat dissipation structure 20 for dissipating heat from the metering and collecting portion 11. As shown in Figure 1 , the heat dissipation structure 20 of this embodiment includes an insulating heat sink 21 disposed on the shunt plate body 10, with at least a portion of the insulating heat sink 21 corresponding to the metering and collecting portion 11.

[0058] When the shunt body 10 heats up, the insulating heat sink 21, at least partially aligned with the metering and collecting portion 11, absorbs some of the heat. This effectively adds a heat dissipation channel around the metering and collecting portion 11, improving heat dissipation and reducing the risk of excessive temperature rise and burnout of the metering and collecting portion 11. Furthermore, the insulating heat sink 21, made of an insulating material, provides a certain degree of insulation. This insulation and isolation function ensures that current is not diverted to the insulating heat sink 21 but rather flows solely along the metering and collecting portion 11, improving the accuracy of the metering and collecting portion 11 during measurement.

[0059] In one embodiment, the insulating heat sink 21 is made of a hard material, providing both insulation and structural strength. Alternatively, the insulating heat sink 21 may be made of a soft material, such as relatively elastic rubber, which provides a certain degree of elasticity. Specifically, the insulating heat sink 21 may be made of plastic silicone. The plastic silicone may be positioned on at least one side of the metering and collecting portion 11 along the Y direction, where it closely adheres to the metering and collecting portion 11, further enhancing the heat dissipation effect.

[0060] In one embodiment, as shown in FIG3-FIG4 , the insulating heat sink 21 includes a first heat dissipation portion 211 . The first heat dissipation portion 211 is disposed corresponding to the metering and collecting portion 11 , and the first heat dissipation portion 211 can dissipate heat for the metering and collecting portion 11 .

[0061] A first gap 210 is provided between the side of the first heat dissipation portion 211 facing the measurement and collection portion 11 and the measurement and collection portion 11 , and heat of the measurement and collection portion 11 is transferred to the first gap 210 .

[0062] Alternatively, the side of the first heat dissipation portion 211 facing the metering and collecting portion 11 may be in contact with the metering and collecting portion 11. The first heat dissipation portion 211 has two side surfaces along the Y direction, one of which is in contact with the metering and collecting portion 11 and serves as a heat absorption surface, directly absorbing the heat generated by the metering and collecting portion 11 to the first heat dissipation portion 211, while the other side serves as a heat dissipation surface, directly dissipating the heat from the first heat dissipation portion 211 to the external atmosphere, further improving the heat dissipation effect.

[0063] In one embodiment, the insulating heat sink 21 further includes a first connection portion 212, which is disposed at at least one end of the first heat sink 211 along the length of the diverter body 10. The first connection portion 212 is correspondingly connected to the conductive portion 12. The conductive portion 12, not the metering and collecting portion 11, is fixedly connected to the insulating heat sink 21, and thus does not affect the metering and collecting function of the metering and collecting portion 11.

[0064] For example, two first connecting portions 212 are provided at either end of the first heat dissipation portion 211 along the X-direction. These two first connecting portions 212 are connected to two corresponding conductive portions 12. This bridges the insulating heat dissipation element 21 from the conductive portion 12 on one side of the measurement and collection portion 11 along the X-direction to the conductive portion 12 on the other side of the measurement and collection portion 11, enabling timely temperature dissipation. Furthermore, the bridged structure facilitates the client's ability to measure and collect the temperature of the measurement and collection portion 11.

[0065] In particular, along the thickness direction of the shunt body 10, the side surfaces of the first heat dissipation portion 211 and the side surfaces of the first connecting portion 212 are flush with each other. That is, the bottom surface of the first heat dissipation portion 211 along the Y direction is flush with the bottom surface of the first connecting portion 212 along the Y direction, and the top surface of the first heat dissipation portion 211 along the Y direction is flush with the top surface of the first connecting portion 212 along the Y direction, thus saving the overall space occupied by the shunt along the Z direction.

[0066] Alternatively, as shown in Figures 3 and 4 , the first heat dissipation portion 211 is disposed along the thickness direction of the diverter body 10 and protrudes from the first connection portion 212 in a direction away from the diverter body 10. In this case, the top surface of the first heat dissipation portion 211 along the Y direction is higher than the top surface of the first connection portion 212 along the Y direction, and the bottom surface of the first heat dissipation portion 211 along the Y direction is higher than the bottom surface of the first connection portion 212 along the Y direction. A first gap 210 is formed between the bottom surface of the first heat dissipation portion 211 and the metering and collecting portion 11.

[0067] In one embodiment, as shown in FIG3 , one of the conductive portions 12 is provided with a contact 121, which is disposed within the relay base 100. For example, when the shunt is a static spring, the contact 121 is specifically a static contact; when the shunt is a dynamic spring, the contact 121 is specifically a dynamic contact. Because the dynamic and static contacts generate a large amount of heat during prolonged contact, this heat is transferred to the metering and collecting portion 11 through the conductive portion 12. The portion between the contact 121 and the metering and collecting portion 11 serves as a heat transfer path. In particular, the portion of the conductive portion 12 located between the relay base 100 and the metering and collecting portion 11 has a length of approximately 5 mm along the X-axis. This portion is close to both the metering and collecting portion 11 and the contact 121, possessing two heat sources and, therefore, having the highest temperature.

[0068] To solve this problem, as shown in FIG. 3 , one of the first connecting portions 212 is disposed between the first heat dissipating portion 211 and the contact 121 .

[0069] In this way, the first heat dissipation portion 211 of the insulating heat dissipation element 21 extends along the X direction and toward the contact 121 to form a first connecting portion 212, so that the distance between the insulating heat dissipation element 21 and the contact 121 is reduced, and the first connecting portion 212 is closer to the contact 121. Part of the heat generated by the contact 121 is transferred to the first heat dissipation portion 211 through the first connecting portion 212, and the other part is transferred to the metering and collecting portion 11 through the conductive portion 12. The first connecting portion 212 plays a role in heat diversion, and part of the heat can be dissipated before reaching the metering and collecting portion 11, reducing the amount of heat reaching the metering and collecting portion 11, thereby reducing the degree of heat generation in the metering and collecting portion 11, avoiding the risk of burning the metering and collecting portion 11, and improving the metering accuracy of the metering and collecting portion 11.

[0070] In one embodiment, as shown in Figure 5, the metering and collecting unit 11 includes a main body 111 and a sampling unit 112. The main body 111 is connected to two conductive portions 12 at both ends along the length of the shunt body 10. The sampling unit 112 is connected to one side of the main body 111 along the width of the shunt body 10, that is, the sampling unit 112 extends along the Y direction. Furthermore, the sampling unit 112 is positioned between the two first connecting portions 212. This approach ensures both heat dissipation and sampling accuracy.

[0071] Specifically, as shown in Figure 6 , the projection of the main body 111 relative to the first reference plane is located within the projection of the heat dissipation structure 20 relative to the first reference plane; alternatively, the projection of the heat dissipation structure 20 relative to the first reference plane and the projection of the main body 111 relative to the first reference plane at least partially overlap. The first reference plane is perpendicular to the thickness direction of the diverter body 10 and is the plane where the X and Z directions lie.

[0072] Since the main body 111 and the conductive part 12 are directly connected, heat will be transferred to the main body 111 through the conductive part 12. The projection of the heat dissipation structure 20 relative to the first reference plane can cover the projection of the main body 111 relative to the first reference plane, that is, the heat dissipation structure 20 can completely cover the area of ​​the main body 111, ensuring that the heat transferred to the main body 111 can be dissipated to the external atmosphere through the heat dissipation structure 20, thereby improving the heat dissipation effect.

[0073] In one embodiment, the projection of the heat dissipation structure 20 relative to the second reference plane and the projection of the sampling portion 112 relative to the second reference plane do not overlap; wherein the second reference plane is perpendicular to the width direction of the shunt body 10, and the second reference plane is the plane where the X and Y directions are located.

[0074] In this way, the heat dissipation structure 20 does not wrap the side of the main body 111 facing the sampling part 112 along the Z direction. The heat dissipation structure 20 is not a fully enclosed structure, that is, the heat dissipation structure 20 is an open structure on the side facing the sampling part 112, which will not interfere with the extension and extraction of the sampling part 112, thereby facilitating the client to measure and collect data on the sampling part 112.

[0075] In one embodiment, there are multiple insulating heat dissipation members 21 , and the multiple insulating heat dissipation members 21 are disposed on at least one side of the shunt body 10 along the thickness direction of the shunt body 10 .

[0076] When there is only one insulating heat sink 21, it can be located on the upper side of the metering and collecting portion 11 along the Z direction (as shown in Figures 1-6), or on the lower side of the metering and collecting portion 11 along the Z direction, i.e., a single-sided, single-layer approach is used to dissipate heat from the metering and collecting portion 11. When there are two insulating heat sinks 21, they are respectively located on the upper and lower sides of the metering and collecting portion 11 along the Z direction, i.e., a double-sided, single-layer approach is used to dissipate heat from the metering and collecting portion 11, thereby increasing the heat dissipation area and improving the heat dissipation effect.

[0077] In one embodiment, a plurality of insulating heat dissipating members 21 located on the same side of the shunt body 10 in the thickness direction of the shunt body 10 are stacked along the thickness direction of the shunt body 10 .

[0078] For example, when there are two insulating heat sinks 21, the two insulating heat sinks 21 can be simultaneously disposed on the upper or lower side of the metering and collecting portion 11 along the Z direction, i.e., a single-sided double-layer approach is used to dissipate heat from the metering and collecting portion 11. Of course, multiple insulating heat sinks 21 can be simultaneously disposed on the upper or lower side of the metering and collecting portion 11 along the Z direction, i.e., a single-sided multi-layer approach is used to dissipate heat from the metering and collecting portion 11. Alternatively, multiple insulating heat sinks 21 can be disposed separately on the upper and lower sides of the metering and collecting portion 11 along the Z direction, i.e., a double-sided multi-layer approach is used to dissipate heat from the metering and collecting portion 11.

[0079] Since the multiple insulating heat dissipating members 21 located on the same side of the metering and collecting portion 11 are stacked, the heat dissipation intensity on one side of the metering and collecting portion 11 is relatively high, thereby improving the heat dissipation effect of the metering and collecting portion 11 .

[0080] This embodiment further provides an electronic metering device, including the above-mentioned shunt plate or the above-mentioned relay. The electronic metering device can specifically be an electronic electric energy meter.

[0081] In one embodiment, as shown in FIG6 , the electronic metering device further includes a relay base 100 , and the heat dissipation structure 20 and the relay base 100 abut against each other on one side thereof that is close to each other along the length direction of the shunt body 10 .

[0082] In this way, the distance between the insulating heat sink 21 and the contact 121 is reduced, and the heat generated by a part of the contact 121 can reach the first connecting part 212 of the insulating heat sink 21 through the shorter conductive part 12 and be transferred to the first heat dissipation part 211. The first connecting part 212 promptly receives and transports the heat, that is, the heat can be dissipated before reaching the metering and collecting part 11, reducing the amount of heat reaching the metering and collecting part 11, thereby reducing the degree of heat generation of the metering and collecting part 11, avoiding the risk of burning of the metering and collecting part 11, and improving the metering accuracy of the metering and collecting part 11.

[0083] Example 2

[0084] This embodiment is similar to the first embodiment, and the only difference lies in the detailed structure of the heat dissipation structure 20 .

[0085] As shown in Figures 7 and 8, the heat dissipation structure 20 provided in this embodiment also includes a metal heat sink 22, which is arranged on the diverter body 10 and corresponds to the metering and collecting part 11, and the insulating heat sink 21 is arranged between the diverter body 10 and the metal heat sink 22.

[0086] When the shunt body 10 generates heat, the insulating heat sink 21 located in the innermost layer of the heat dissipation structure 20 first absorbs part of the heat, and the remaining heat is transferred to the metal heat sink 22 in the outer layer for absorption, which is equivalent to using two heat dissipation channels to dissipate heat, thereby improving the heat dissipation effect. At the same time, the metal heat sink 22 is made of metal material, and the metal heat sink 22 is located outside the insulating heat sink 21, with good structural strength, and plays a protective role. In addition, since the insulating heat sink 21 is arranged between the shunt body 10 and the metal heat sink 22, the insulating heat sink 21 plays the role of insulation and isolation between the shunt body 10 and the metal heat sink 22, thereby preventing the current from passing through the metal heat sink 22 and affecting the metering accuracy of the metering collection unit 11.

[0087] In one embodiment, as shown in FIG. 7 and FIG. 8 , the metal heat sink 22 includes a second heat sink 221 . The second heat sink 221 is provided corresponding to the metering and collecting part 11 . The second heat sink 221 can dissipate heat for the metering and collecting part 11 .

[0088] If the insulating heat sink 21 is made of a hard material, a second gap 220 is provided between the first heat sink 211 and the second heat sink 221 on the side facing the first heat sink 211. The heat of the metering and collecting part 11 can be transferred to the second gap 220 through the first heat sink 211. The second gap 220 serves to temporarily store the heat, and then the heat is discharged to the external atmosphere through the second heat sink 221.

[0089] In one embodiment, the metal heat sink 22 further includes a second connection portion 222, which is disposed at at least one end of the second heat sink 221 along the length of the diverter body 10. The first connection portion 212 and the second connection portion 222 are both connected to the conductive portion 12. The metal heat sink 22 is fixedly connected to the conductive portion 12, not the metering and collecting portion 11, and does not affect the metering and collecting functions of the metering and collecting portion 11.

[0090] For example, two second connecting portions 222 are provided at either end of the second heat dissipation portion 221 along the X-direction. The two second connecting portions 222 are connected to two corresponding conductive portions 12. This bridges the metal heat sink 22 from the conductive portion 12 on one side of the measurement and collection portion 11 along the X-direction to the conductive portion 12 on the other side of the measurement and collection portion 11, enabling timely temperature dissipation. Furthermore, the bridged structure facilitates the client's ability to measure and collect the temperature of the measurement and collection portion 11.

[0091] Specifically, the first connecting part 212 is provided with a first connecting hole, the second connecting part 222 is provided with a second connecting hole, and the connecting member 30 is passed through the first connecting hole, the second connecting hole and the conductive part 12 to achieve fixation between the metal heat sink 22, the insulating heat sink 21 and the diverter plate body 10.

[0092] Alternatively, as shown in Figures 7-9, the second heat dissipation portion 221 is provided along the thickness direction of the diverter body 10 and protrudes from the second connecting portion 222 in a direction away from the diverter body 10. In this case, the top surface of the second heat dissipation portion 221 along the Y direction is higher than the top surface of the second connecting portion 222 along the Y direction, and the bottom surface of the second heat dissipation portion 221 along the Y direction is higher than the bottom surface of the second connecting portion 222 along the Y direction. A second gap 220 is formed between the bottom surface of the second heat dissipation portion 221 and the metering and collecting portion 11.

[0093] In one embodiment, as shown in FIG. 10 and FIG. 11 , the insulating heat sink 21 is respectively attached to the shunt body 10 and the metal heat sink 22 on both sides along the thickness direction of the shunt.

[0094] If the insulating heat sink 21 is made of a plastic soft material, the second connecting part 222 can be first fixedly connected to the conductive part 12, and then the plastic soft material can be filled between the metal heat sink 22 and the diverter body 10, so that the two sides of the insulating heat sink 21 can be tightly fitted with the metal heat sink 22 and the diverter body 10 respectively, thereby further improving the heat dissipation effect.

[0095] Specifically, the first heat dissipation portion 211 is bonded to the side of the second heat dissipation portion 221 facing the first heat dissipation portion 211. The second heat dissipation portion 221 has two side surfaces along the Z direction, one of which is bonded to the first heat dissipation portion 211 and serves as a heat absorption surface, directly absorbing the heat generated by the first heat dissipation portion 211 to the second heat dissipation portion 221, while the other side serves as a heat dissipation surface, directly dissipating the heat from the second heat dissipation portion 221 to the external atmosphere, further improving the heat dissipation effect.

[0096] Specifically, the first connecting portion 212 is disposed between the second connecting portion 222 and the conductive portion 12 along both sides of the shunt plate in the thickness direction and is in contact with each other. The first connecting portion 212 acts as a barrier between the second connecting portion 222 and the conductive portion 12, preventing current from flowing through the metal heat sink 22 at the connection between the two heat sinks and the shunt plate body 10, thereby affecting the metering accuracy of the metering and collecting unit 11.

[0097] In some embodiments, along the thickness direction of the diverter body 10, the side surfaces of the second heat dissipation portion 221 and the side surfaces of the second connecting portion 222 are flush with each other. That is, the bottom surface of the second heat dissipation portion 221 along the Y direction is flush with the bottom surface of the second connecting portion 222 along the Y direction, and the top surface of the second heat dissipation portion 221 along the Y direction is flush with the top surface of the second connecting portion 222 along the Y direction, thereby saving the overall space occupied by the diverter body 10 along the Y direction.

[0098] In one embodiment, as shown in FIG. 12 and FIG. 13 , there are multiple metal heat sinks 22 , and the multiple metal heat sinks 22 are disposed on at least one side of the diverter body 10 along the thickness direction of the diverter body 10 .

[0099] When the number of metal heat sinks 22 is one, the metal heat sink 22 can be arranged on the upper side of the metering and collecting part 11 along the Y direction, or on the lower side of the metering and collecting part 11 along the Y direction. The insulating heat sink 21 is arranged between the metal heat sink 22 and the diverter plate body 10, that is, a single-sided double-layer method is used to dissipate heat for the metering and collecting part 11.

[0100] When the number of metal heat sinks 22 is two, as shown in Figures 12-13, the two metal heat sinks 22 are respectively arranged on the upper and lower sides of the metering and collecting part 11 along the Y direction, and the insulating heat sink 21 is arranged between the metal heat sink 22 and the diverter plate body 10, that is, a double-sided double-layer method is adopted to dissipate heat for the metering and collecting part 11, thereby increasing the heat dissipation area and improving the heat dissipation effect.

[0101] In one embodiment, multiple metal heat sinks 22 located on the same side of the diverter body 10 in the thickness direction of the diverter body 10 are stacked along the thickness direction of the diverter body 10 , and the metal heat sink 22 is disposed between two adjacent insulating heat sinks 21 .

[0102] For example, multiple metal heat sinks 22 can be simultaneously arranged on the upper or lower side of the metering and collecting part 11 along the Y direction, and the insulating heat sink 21 is arranged between the metal heat sink 22 and the diverter plate body 10, that is, a single-sided multi-layer method is used to dissipate heat for the metering and collecting part 11. Alternatively, multiple metal heat sinks 22 can be respectively arranged on the upper and lower sides of the metering and collecting part 11 along the Y direction, that is, a double-sided multi-layer method is used to dissipate heat for the metering and collecting part 11.

[0103] Since the multiple metal heat sinks 22 located on the same side of the metering and collecting part 11 are stacked, the heat dissipation intensity on one side of the metering and collecting part 11 is relatively high, thereby improving the heat dissipation effect of the metering and collecting part 11 .

[0104] It should be noted that the shunt shown in the drawings and described in this specification is only an example of the application of the principles of the present invention. It should be clearly understood by those skilled in the art that the principles of the present invention are not limited to any details or any components of the devices shown in the drawings or described in the specification.

[0105] It will be understood that the present invention is not limited in its application to the detailed construction and arrangement of components set forth in this specification. The present invention is capable of other embodiments and can be implemented and carried out in a variety of ways. The aforementioned variations and modifications fall within the scope of the present invention. It will be understood that the invention disclosed and defined in this specification extends to all alternative combinations of two or more individual features mentioned or evident in the text and / or the drawings. All of these different combinations constitute multiple alternative aspects of the present invention. The embodiments described in this specification illustrate the best mode known for implementing the invention and will enable those skilled in the art to utilize the invention.

[0106] Other embodiments of the present invention will readily occur to those skilled in the art after considering the specification and practicing the invention disclosed herein. The present invention is intended to cover any variations, uses, or adaptations of the present invention that follow the general principles of the present invention and include common knowledge or customary techniques in the art not disclosed herein. The description and illustrative embodiments are to be considered as exemplary only, with the true scope and spirit of the invention being indicated by the appended claims.

[0107] It should be understood that the present invention is not limited to the precise structure described above and shown in the drawings, and that various modifications and changes can be made without departing from the scope thereof. The scope of protection of the present invention is limited only by the appended claims.

Claims

1. A shunt sheet, characterized in that: include: The shunt plate body includes a metering and collecting part; The heat dissipation structure comprises an insulating heat dissipation element, wherein the insulating heat dissipation element is arranged on the diverter plate body, and at least a part of the insulating heat dissipation element is arranged corresponding to the metering and collecting part.

2. The shunt sheet according to claim 1, characterized in that: The insulating heat sink comprises: A first heat dissipation part, wherein the first heat dissipation part is arranged corresponding to the measurement and collection part.

3. The shunt sheet according to claim 2, characterized in that: A side of the first heat dissipation portion facing the measurement and collection portion is in contact with the measurement and collection portion.

4. The shunt sheet according to claim 2, characterized in that: The shunt plate body further comprises a conductive portion, and the conductive portion is arranged at at least one end of the metering and collecting portion along the length direction of the shunt plate body; The insulating heat sink also includes a first connecting portion, which is disposed at at least one end of the first heat dissipation portion along the length direction of the shunt plate body, and the first connecting portion is correspondingly connected to the conductive portion.

5. The shunt sheet according to claim 4, characterized in that: The two conductive parts are arranged at the two ends of the metering and collecting part along the length direction of the shunt body, and the two first connecting parts are arranged at the two ends of the first heat dissipation part along the length direction of the shunt body, one of the conductive parts is provided with a contact, and one of the first connecting parts is arranged between the first heat dissipation part and the contact.

6. The shunt sheet according to claim 4, characterized in that: The metering and collecting part comprises a sampling part. The two first connecting parts are arranged at two ends of the first heat dissipation part along the length direction of the diverter plate body, and the sampling part is arranged between the two first connecting parts.

7. The shunt sheet according to claim 6, characterized in that: The projection of the heat dissipation structure relative to the second reference plane and the projection of the sampling portion relative to the second reference plane do not overlap; Wherein, the second reference plane is perpendicular to the width direction of the diverter plate body.

8. The shunt sheet according to claim 6, characterized in that: The metering and collecting part also includes a main body, and two ends of the main body along the length direction of the shunt body are respectively connected to the two conductive parts, and the sampling part is connected to one side of the main body along the width direction of the shunt body.

9. The flow divider according to any one of claims 1 to 8, characterized in that: The heat dissipation structure further includes: The metal heat sink is arranged on the shunt plate body and is arranged corresponding to the metering and collecting part, and the insulating heat sink is arranged between the shunt plate body and the metal heat sink.

10. The shunt sheet according to claim 9, characterized in that: The insulating heat sink is respectively attached to the shunt plate body and the metal heat sink at two sides along the shunt plate thickness direction.

11. The shunt sheet according to claim 10, characterized in that: The insulating heat sink comprises a first heat sink, and the first heat sink is arranged corresponding to the metering and collecting part; The metal heat sink includes a second heat sink, and the second heat sink is arranged corresponding to the metering and collecting part.

12. The shunt sheet according to claim 11, characterized in that: The shunt plate body further comprises a conductive portion, and the conductive portion is arranged at at least one end of the metering and collecting portion along the length direction of the shunt plate body; The insulating heat sink further comprises a first connection portion, which is arranged at least one end of the first heat sink along the length direction of the shunt plate body; The metal heat sink also includes a second connection portion, which is disposed at at least one end of the second heat sink along the length direction of the shunt plate body, and the first connection portion and the second connection portion are both connected to the conductive portion.

13. The shunt sheet according to claim 12, characterized in that: The first connecting portion is arranged between the second connecting portion and the conductive portion at two sides along the thickness direction of the shunt sheet and is respectively in contact with the second connecting portion and the conductive portion.

14. The shunt sheet according to claim 10, characterized in that: There are multiple insulating heat sinks, and the multiple insulating heat sinks are arranged on at least one side of the shunt plate body along the thickness direction of the shunt plate body; And / or, there are multiple metal heat sinks, and the multiple metal heat sinks are arranged on at least one side of the diverter plate body along the thickness direction of the diverter plate body.

15. The shunt sheet according to claim 10, characterized in that: A plurality of the metal heat sinks located on the same side of the shunt plate body along the thickness direction of the shunt plate body are stacked and arranged along the thickness direction of the shunt plate body; And / or, a plurality of the insulating heat dissipating components located on the same side of the shunt plate body along the thickness direction of the shunt plate body are stacked along the thickness direction of the shunt plate body.

16. The shunt sheet according to claim 1, characterized in that: The insulating heat sink is made of hard material and / or soft material.

17. The shunt sheet according to claim 16, characterized in that: The insulating heat sink is made of plastic silicone.

18. A relay, characterized in that: The present invention comprises the shunt sheet as described in any one of claims 1 to 17.

19. The relay according to claim 18, characterized in that The diverter plate body of the diverter plate is a static spring plate.

20. An electronic metering device, characterized in that: It comprises the shunt sheet as described in any one of claims 1 to 17 or the relay as described in claim 18 or 19.

21. The electronic metering device according to claim 20, characterized in that It also includes a relay base, and the heat dissipation structure and the relay base abut against each other at one side close to each other along the length direction of the shunt plate body.

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