Combined mutual inductor

Abstract

The invention relates to the technical field of combined type mutual inductors, and provides a combined type mutual inductor which comprises a mutual inductor body, a base and at least one conductive connecting piece set. The base is arranged on the mutual inductor body, the conductive connecting piece sets are connected to the base, one conductive connecting piece set comprises a first conductive connecting piece and at least one second conductive connecting piece, the first conductive connecting piece and the second conductive connecting piece are oppositely arranged in the first direction, and the first conductive connecting piece and the second conductive connecting piece are matched to form a containing gap. The placement gap is used for accommodating an external connector, and when the external connector is located in the placement gap, the first conductive connecting piece and the second conductive connecting piece are conductively connected with the external connector. The problem that the safety performance of a combined type mutual inductor is poor can be solved.

Description

Technical Field

[0001] This application relates to the field of combined instrument transformer technology, and specifically to a combined instrument transformer. Background Technology

[0002] A combined instrument transformer is a power device that integrates a current transformer and a voltage transformer into one device, and it is widely used in power systems.

[0003] The combined current transformer has terminals, through which it is electrically connected to external equipment.

[0004] In related technologies, when the terminals of a combined instrument transformer are electrically connected to external equipment, there is a problem of uneven electric field distribution, which can lead to partial discharge at the terminals and degrade the safety performance of the combined instrument transformer. Summary of the Invention

[0005] This application provides a combined instrument transformer that can solve the problem of poor safety performance of combined instrument transformers.

[0006] To achieve the above objectives, this application adopts the following technical solution:

[0007] This application provides a combined current transformer, comprising:

[0008] Current transformer body;

[0009] The base is located on the transformer body;

[0010] At least one conductive connector group is connected to the base. The conductive connector group includes a first conductive connector and a second conductive connector, which are disposed opposite to each other along a first direction.

[0011] The first conductive connector and the second conductive connector cooperate to form a placement gap, which is used to accommodate the external connector. When the external connector is located within the placement gap, the first conductive connector and the second conductive connector are electrically connected to the external connector.

[0012] In some embodiments, the first conductive connector has a first storage cavity for containing conductive fluid and a first delivery channel communicating with the first storage cavity, the first storage cavity being connected to the placement gap via the first delivery channel.

[0013] In some embodiments, the first conductive connector includes a first deformable portion and a first conductive portion connected together, the first deformable portion being located on the side of the first conductive portion away from the second conductive connector;

[0014] The first deformable portion and the first conductive portion enclose a first storage cavity, the first deformable portion forming at least one cavity wall of the first storage cavity, and the first conveying channel being disposed in the first conductive portion.

[0015] In some embodiments, multiple first conveying channels are provided, and the multiple first conveying channels are spaced apart along the intersection of the first direction.

[0016] In some embodiments, the first deformable part has a first form under normal conditions and a second form under pressure; the first deformable part is configured to switch from the first form to the second form when subjected to external pressure.

[0017] When the first deformable part switches from the first form to the second form, the volume of the first storage cavity decreases.

[0018] In some embodiments, the second conductive connector has a second storage cavity for containing conductive fluid and a second delivery channel communicating with the second storage cavity, the second storage cavity being connected to the placement gap via the second delivery channel.

[0019] In some embodiments, the second conductive connector includes a second deformable portion and a second conductive portion connected together, the second deformable portion being located on the side of the second conductive portion away from the first conductive connector;

[0020] The second deformable portion and the second conductive portion enclose and form a second storage cavity. The second deformable portion forms at least one cavity wall of the second storage cavity, and the second conveying channel is provided in the second conductive portion.

[0021] In some embodiments, multiple second conveying channels are provided, arranged at intervals along the intersection with the first direction.

[0022] In some embodiments, the second deformable part has a third state under normal conditions and a fourth state under pressure; the second deformable part is configured to switch from the third state to the fourth state when subjected to external pressure.

[0023] When the second deformation switches from the third form to the fourth form, the volume of the second storage cavity decreases.

[0024] In some embodiments, the first conductive connector has at least one first hole, and the second conductive connector has at least one second hole, with the opening ends of the first hole and the second hole facing each other along the first direction.

[0025] The inner cavity of the first hole is used to contain conductive fluid;

[0026] And / or, the inner cavity of the second hole is used to contain conductive fluid.

[0027] This combined instrument transformer, with its base, provides space for the placement of a first conductive connector and a second conductive connector. The first conductive connector allows for conductive connection to an external connector. Similarly, the second conductive connector allows for conductive connection to the external connector. By arranging the first and second conductive connectors opposite each other along a first direction, they can each conductively connect to two opposite surfaces of the external connector along that direction. The two different conductive connectors of the combined instrument transformer connect to the two surfaces of the external connector, increasing the connection area between the combined instrument transformer and the external connector, thereby improving the current transmission area and reducing heat generation between the external connector and the transformer. It also reduces the area exposed to air, thus optimizing the problem of uneven electric field distribution and mitigating partial discharge at the connection point between the conductive connector and the external connector, thereby improving the safety performance of the combined instrument transformer.

[0028] Therefore, the combined instrument transformer provided in the embodiments of this application can solve the problem of poor safety performance of combined instrument transformers. Attached Figure Description

[0029] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0030] Figure 1 This is a schematic diagram of the connection structure between the base and the first conductive connector and the second conductive connector provided in the embodiments of this application.

[0031] Explanation of reference numerals in the attached figures:

[0032] 10-Base;

[0033] 100 - First conductive connector; 101 - First storage cavity; 102 - First conveying channel; 103 - First deformable part; 104 - First conductive part;

[0034] 200 - Second conductive connector; 201 - Second storage cavity; 202 - Second conveying channel; 203 - Second deformable part; 204 - Second conductive part;

[0035] 300 - Placement gap;

[0036] X - First direction. Detailed Implementation

[0037] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application. Unless otherwise specified, the following embodiments and features can be combined with each other.

[0038] In related technologies, when the terminals of a combined current transformer are connected to the conductive terminals of external equipment, the terminals and terminals are connected by bolts, and one side of the terminal is conductively connected to one side of the terminal.

[0039] It should be noted that the above wiring method limits the effective contact area for current transmission, causing the current to be highly concentrated in a limited contact area instead of being evenly distributed when passing through the connection between the terminal and the wire. Furthermore, due to the unevenness of the contact surfaces between the terminal and the wire, there will be an uneven distribution of the electric field.

[0040] Furthermore, when current flows, due to the dispersed and irregular contact positions between the terminals and wiring ends, the electric field cannot be uniformly distributed as ideally, but instead forms a localized enhancement of the electric field strength in certain microscopic protrusions or areas of weak contact. This abnormal enhancement of the local electric field can cause the ionization of media such as air in these areas, thereby producing a partial discharge phenomenon.

[0041] To overcome the deficiencies in the prior art, the combined current transformer provided in the embodiments of this application, by setting a base, can form a placement space for a first conductive connector and a second conductive connector. By setting the first conductive connector, it can be electrically connected to an external connector. By setting the second conductive connector, it can also be electrically connected to the external connector. By setting the first and second conductive connectors opposite each other along a first direction, they can respectively conductively connect to two opposite surfaces of the external connector along the first direction. The two different conductive connectors of the combined current transformer are respectively connected to two surfaces of the external connector, which increases the connection area between the combined current transformer and the external connector, thereby increasing the current transmission area and reducing heat generation between the external connector and the current transformer. It also reduces the area exposed to air, thereby optimizing the problem of uneven electric field distribution and optimizing the partial discharge phenomenon at the connection between the conductive connector and the external connector, thus improving the safety performance of the combined current transformer.

[0042] Therefore, the combined instrument transformer provided in the embodiments of this application can solve the problem of poor safety performance of combined instrument transformers.

[0043] The contents of this application will now be described in detail with reference to the accompanying drawings, so that those skilled in the art can have a clearer and more detailed understanding of the contents of this application.

[0044] like Figure 1 As shown, the combined current transformer provided in the embodiments of this application includes: a current transformer body, a base 10, and at least one conductive connector group. The base 10 is disposed on the current transformer body, and the conductive connector group is connected to the base 10. One conductive connector group includes a first conductive connector 100 and at least one second conductive connector 200. The first conductive connector 100 and the second conductive connector 200 are disposed opposite to each other along a first direction. The first conductive connector 100 and the second conductive connector 200 cooperate to form a placement gap 300. The placement gap 300 is used to accommodate an external connector. When the external connector is located within the placement gap 300, the first conductive connector 100 and the second conductive connector 200 are conductively connected to the external connector.

[0045] The following sections provide a detailed description of the specific structure of the combined instrument transformer and various possible implementation methods.

[0046] It should be noted that the transformer body is an insulator that houses the voltage and current coils and secondary leads, and is cast in one piece.

[0047] In some implementations, the combined current transformer has three phases A, B, and C. The base 10 is used to accommodate one or more combinations of the three phases A, B, and C. There is no limitation on this, and the selection can be made according to actual usage requirements.

[0048] Furthermore, any one of the three phases A, B, and C may have one or two conductive connector groups, without any restriction, and can be selected according to actual usage requirements.

[0049] Therefore, the number of conductive connector groups in a combined current transformer can be any number greater than or equal to 1, without any restriction, and can be selected according to actual usage requirements.

[0050] It should be noted that the first conductive connector 100 provided in the embodiments of this application has a first storage cavity 101 for containing conductive fluid and a first conveying channel 102 communicating with the first storage cavity 101. The first storage cavity 101 is connected to the placement gap 300 through the first conveying channel 102.

[0051] It is understood that by providing the first storage cavity 101, conductive fluid can be contained and stored. By providing the first conveying channel 102, the conductive fluid in the first storage cavity 101 can be conveyed to the placement gap 300 through the first conveying channel 102. By providing conductive fluid, the conductive fluid can fill the gap at the contact position between the first conductive connector 100 and the external connector, thereby reducing contact resistance and lowering the surface temperature at the connection between the first conductive connector 100 and the external connector, thus optimizing the temperature rise at the connection between the first conductive connector 100 and the external connector. In some embodiments, the provision of conductive fluid can also provide an oil seal at the connection between the first conductive connector 100 and the external connector, thereby preventing oxidation of the first conductive connector 100 and the external connector by air, and preventing corrosion of the first conductive connector 100 and the external connector by corrosive gases, thereby extending the service life of the combined instrument transformer and improving its safety performance.

[0052] It should be noted that the conductive fluid can be one or a combination of conductive paste, conductive gel, and conductive lubricant, and there are no restrictions on this. It can be selected according to the actual use requirements.

[0053] It should be noted that the selection of the type, material, and processing method of the conductive fluid is not the focus of this application, and is only provided as an example.

[0054] Taking conductive paste as an example, conductive paste can be a soft paste made by adding additives to mineral oil, synthetic ester oil, silicone oil, etc. as base oils. Among them, the additives can be one or a combination of metal particles (e.g., metallic silver, metallic copper, metallic nickel), carbon materials (e.g., graphite, carbon black, carbon nanotubes), or metal oxides (e.g., zinc oxide, tin oxide, indium tin oxide), without limitation, and can be selected according to actual use requirements.

[0055] In some embodiments, the first conveying channel 102 may be arranged at an angle along the direction from the first storage cavity 101 to the placement gap 300, with one end of the first conveying channel 102 communicating with the first storage cavity 101 being higher than the other end of the first conveying channel 102 communicating with the placement gap 300.

[0056] It is understandable that the first conveying channel 102 of this structure allows the conductive fluid in the first storage cavity 101 to be conveyed to the placement gap 300 under the action of gravity along the first conveying channel 102, thereby making the flow of the conductive fluid in the first conveying channel 102 smoother.

[0057] In some embodiments, the first conveying channel 102 may be arranged horizontally along the direction from the first storage cavity 101 to the placement gap 300, that is, the height of one end of the first conveying channel 102 communicating with the first storage cavity 101 is the same as the height of the other end of the first conveying channel 102 communicating with the placement gap 300, and the height of each place in the first conveying channel 102 is the same.

[0058] It should be noted that height fluctuations caused by measurement or processing errors are also within the scope of protection of this application.

[0059] It is understandable that the first conveying channel 102 of this structure can make the flow rate of the conductive fluid in the first conveying channel 102 more uniform.

[0060] It should be noted that there are multiple first conveying channels 102, which are arranged at intervals along the first direction.

[0061] It is understandable that increasing the number of first conveying channels 102 can shorten the operation time for filling the conductive fluid, reducing the gap at the contact point between the first conductive connector 100 and the external connector, and allowing the conductive fluid to reach more locations.

[0062] It should be noted that the angle between the intersection with the first direction and the first direction can be any value from 0 degrees to 180 degrees, without any restriction, and can be selected according to actual usage requirements.

[0063] The first conductive connector 100 provided in the embodiments of this application includes a first deformable portion 103 and a first conductive portion 104 connected together. The first deformable portion 103 is located on the side of the first conductive portion 104 away from the second conductive connector 200. The first deformable portion 103 and the first conductive portion 104 surround to form a first storage cavity 101. The first deformable portion 103 is configured to form at least one cavity wall of the first storage cavity 101. A first conveying channel 102 is provided on the first conductive portion 104.

[0064] It is understood that by providing the first deformable portion 103 and the first conductive portion 104, a first storage cavity 101 can be formed. By constructing the first deformable portion 103 as at least one cavity wall of the first storage cavity 101, when external pressure applies and squeezes the first deformable portion 103, the first deformable portion 103 can squeeze the first storage cavity 101, and then the fluid in the first storage cavity 101 can be transported along the first conveying channel 102 to the placement gap 300. By providing the first conveying channel 102 on the first conductive portion 104, the length of the first conveying channel 102 can be shortened.

[0065] It should be noted that the shape of the first storage cavity 101 can be square, circular, trapezoidal, cylindrical or other irregular shape, and there are no restrictions. It can be selected according to the actual use needs.

[0066] It is understood that the first deformable part 103 is configured to form at least one cavity wall of the first storage cavity 101. The first deformable part 103 may form at least one cavity wall, or the first deformable part 103 may form part of the cavity wall of the first storage cavity 101. There is no limitation here, and it can be selected according to actual usage requirements.

[0067] It should be noted that there are several different mounting methods between the first deformable part 103 and the first conductive part 104. The mounting methods between the first deformable part 103 and the first conductive part 104 will be illustrated with examples below.

[0068] In some embodiments, the first deformable portion 103 and the first conductive portion 104 are integrally formed.

[0069] It is understandable that the first deformable part 103 and the first conductive part 104 are integrally formed, which can improve the connection strength between the first deformable part 103 and the first conductive part 104.

[0070] Furthermore, when the first deformable portion 103 and the first conductive portion 104 are integrally formed, the thickness of the first deformable portion 103 is less than the thickness of the first conductive portion 104. This makes the first deformable portion 103 more susceptible to deformation under external pressure, and also increases the strength of the first conductive portion 104. It also reduces the space occupied by the first conductive connector 100.

[0071] In some embodiments, the first deformable part 103 and the first conductive part 104 are separately provided, with the first deformable part 103 mounted on the first conductive part 104.

[0072] It is understandable that the first deformable part 103 and the first conductive part 104 are separately arranged, which makes the arrangement of the first deformable part 103 and the first conductive part 104 more flexible. The first deformable part 103 is installed on the first conductive part 104, which allows the first deformable part 103 to cooperate with the first conductive part 104 to form the first storage cavity 101.

[0073] Furthermore, when the first deformable part 103 and the first conductive part 104 are separately provided, the first deformable part 103 can be installed on the first conductive part 104 by welding or bonding.

[0074] It is understandable that the installation method between the first deformable part 103 and the first conductive part 104 is not limited and can be selected according to actual usage requirements.

[0075] It should be noted that the first conductive part 104 is configured as a conductive material, and by providing a conductive material, the first conductive part 104 can be electrically connected to an external connector.

[0076] It should be noted that the conductive material can be silver, copper, aluminum, gold, platinum, brass, bronze, graphite, carbon fiber, graphene, or other conductive materials. There are no restrictions, and the material can be selected according to the actual application requirements.

[0077] It should be noted that when the first deformable part 103 and the first conductive part 104 are integrally formed, the processing materials of the first deformable part 103 and the first conductive part 104 are the same.

[0078] It should be noted that when the first deformable part 103 and the first conductive part 104 are separately provided, the first deformable part 103 can be a flexible material or a tough metal material. There are no restrictions here, and it can be selected according to the actual use requirements.

[0079] The flexible material can be silicone rubber, polyurethane, rubber, flexible ceramic film or other deformable materials, without restriction, and can be selected according to actual use requirements.

[0080] Among them, the tough metal material can be silver, copper, aluminum, gold or other tough metals, without restriction, and can be selected according to actual use needs.

[0081] The first deformation part 103 provided in the embodiments of this application has a first form under normal conditions and a second form under pressure. The first deformation part 103 is configured to switch from the first form to the second form when subjected to external pressure. When the first deformation part 103 switches from the first form to the second form, the volume space of the first storage cavity 101 decreases.

[0082] It is understandable that by reducing the volume of the first storage cavity 101, the conductive fluid in the first storage cavity 101 can be compressed into the first conveying channel 102 and then conveyed to the placement gap 300 through the first conveying channel 102.

[0083] It should be noted that when the first deformation part 103 is squeezed, the first deformation part 103 will compress the accommodating space of the first storage cavity 101, thereby reducing the accommodating space of the first storage cavity 101.

[0084] It should be noted that the second conductive connector 200 provided in the embodiments of this application has a second storage cavity 201 for containing conductive fluid, and a second conveying channel 202 communicating with the second storage cavity 201. The second storage cavity 201 is connected to the placement gap 300 through the second conveying channel 202.

[0085] It is understood that by providing the second storage cavity 201, conductive fluid can be contained and stored. By providing the second conveying channel 202, the conductive fluid in the second storage cavity 201 can be conveyed to the placement gap 300 through the second conveying channel 202. By providing conductive fluid, the conductive fluid can fill the gap at the contact position between the second conductive connector 200 and the external connector, thereby reducing contact resistance and lowering the surface temperature at the connection between the second conductive connector 200 and the external connector, thus optimizing the temperature rise at the connection between the second conductive connector 200 and the external connector. In some embodiments, the provision of conductive fluid can also provide an oil seal at the connection between the second conductive connector 200 and the external connector, thereby preventing oxidation of the second conductive connector 200 and the external connector by air, and preventing corrosion of the second conductive connector 200 and the external connector by corrosive gases, thereby extending the service life of the combined instrument transformer and improving its safety performance.

[0086] In some embodiments, the second conveying channel 202 may be arranged at an angle along the direction from the second storage cavity 201 to the placement gap 300, with one end of the second conveying channel 202 communicating with the second storage cavity 201 being higher than the other end of the second conveying channel 202 communicating with the placement gap 300.

[0087] It is understandable that the second conveying channel 202 of this structure allows the conductive fluid in the second storage cavity 201 to be conveyed to the placement gap 300 along the second conveying channel 202 under the action of gravity, thereby making the flow of the conductive fluid in the second conveying channel 202 smoother.

[0088] In some embodiments, the second conveying channel 202 may be arranged horizontally along the direction from the second storage cavity 201 to the placement gap 300, that is, the height of one end of the second conveying channel 202 communicating with the second storage cavity 201 is the same as the height of the other end of the second conveying channel 202 communicating with the placement gap 300, and the height of each part in the second conveying channel 202 is the same.

[0089] It should be noted that height fluctuations caused by measurement or processing errors are also within the scope of protection of this application.

[0090] It is understandable that the second conveying channel 202 of this structure can make the flow rate of the conductive fluid in the second conveying channel 202 more uniform.

[0091] It should be noted that there are multiple second conveying channels 202, which are arranged at intervals along the intersection of the second direction.

[0092] It is understandable that increasing the number of second conveying channels 202 can shorten the operation time for filling the conductive fluid, reducing the gap at the contact point between the second conductive connector 200 and the external connector, and allowing the conductive fluid to reach more locations.

[0093] The second conductive connector 200 provided in the embodiments of this application includes a second deformable portion 203 and a second conductive portion 204 connected together. The second deformable portion 203 is located on the side of the second conductive portion 204 away from the first conductive connector 100. The second deformable portion 203 and the second conductive portion 204 surround each other to form a second storage cavity 201. The second deformable portion 203 is configured to form at least one cavity wall of the second storage cavity 201. A second conveying channel 202 is provided on the second conductive portion 204.

[0094] It is understood that by providing the second deformable portion 203 and the second conductive portion 204, a second storage cavity 201 can be formed. By constructing the second deformable portion 203 as at least one cavity wall of the second storage cavity 201, when external pressure applies and squeezes the second deformable portion 203, the second deformable portion 203 can squeeze the second storage cavity 201, and then the fluid in the second storage cavity 201 can be transported along the second conveying channel 202 to the placement gap 300. By providing the second conveying channel 202 on the second conductive portion 204, the length of the second conveying channel 202 can be shortened.

[0095] It should be noted that the shape of the second storage cavity 201 can be square, circular, trapezoidal, cylindrical or other irregular shape, and there are no restrictions. It can be selected according to the actual use requirements.

[0096] It is understood that the second deformable portion 203 is configured to form at least one cavity wall of the second storage cavity 201. The second deformable portion 203 may form at least one cavity wall, or the second deformable portion 203 may form part of the cavity wall of the second storage cavity 201. There is no limitation here, and it can be selected according to actual usage requirements.

[0097] It should be noted that there are several different mounting methods between the second deformable part 203 and the second conductive part 204. Examples of the mounting methods between the second deformable part 203 and the second conductive part 204 will be given below.

[0098] In some embodiments, the second deformable portion 203 and the second conductive portion 204 are integrally formed.

[0099] It is understandable that the second deformable part 203 and the second conductive part 204 are integrally formed, which can improve the connection strength between the second deformable part 203 and the second conductive part 204.

[0100] Furthermore, when the second deformable portion 203 and the second conductive portion 204 are integrally formed, the thickness of the second deformable portion 203 is less than the thickness of the second conductive portion 204. This makes the second deformable portion 203 more susceptible to deformation under external pressure, and also increases the strength of the second conductive portion 204. It also reduces the space occupied by the second conductive connector 200.

[0101] In some embodiments, the second deformable portion 203 and the second conductive portion 204 are separately provided, with the second deformable portion 203 mounted on the second conductive portion 204.

[0102] It is understandable that the second deformable part 203 and the second conductive part 204 are separately provided, which allows for more flexible placement of the second deformable part 203 and the second conductive part 204. The second deformable part 203 is installed on the second conductive part 204, which allows the second deformable part 203 to cooperate with the second conductive part 204 to form the second storage cavity 201.

[0103] Furthermore, when the second deformable part 203 and the second conductive part 204 are separately provided, the second deformable part 203 can be installed on the second conductive part 204 by welding or bonding.

[0104] It is understandable that the installation method between the second deformable part 203 and the second conductive part 204 is not limited and can be selected according to actual usage requirements.

[0105] It should be noted that the second conductive part 204 is configured as a conductive material, and by providing a conductive material, the second conductive part 204 can be electrically connected to an external connector.

[0106] It should be noted that the conductive material can be silver, copper, aluminum, gold, platinum, brass, bronze, graphite, carbon fiber, graphene, or other conductive materials. There are no restrictions, and the material can be selected according to the actual application requirements.

[0107] It should be noted that when the second deformable part 203 and the second conductive part 204 are integrally formed, the processing materials of the second deformable part 203 and the second conductive part 204 are the same.

[0108] It should be noted that when the second deformation part 203 and the second conductive part 204 are separately provided, the second deformation part 203 can be a flexible material or a tough metal material. There are no restrictions here, and it can be selected according to the actual use requirements.

[0109] The flexible material can be silicone rubber, polyurethane, rubber, flexible ceramic film or other deformable materials, without restriction, and can be selected according to actual use requirements.

[0110] Among them, the tough metal material can be silver, copper, aluminum, gold or other tough metals, without restriction, and can be selected according to actual use needs.

[0111] The second deformation part 203 provided in the embodiments of this application has a third form under normal conditions and a fourth form under pressure. The second deformation part 203 is configured to switch from the third form to the fourth form when subjected to external pressure. When the second deformation part 203 switches from the third form to the fourth form, the volume space of the second storage cavity 201 decreases.

[0112] It is understandable that by reducing the volume of the second storage cavity 201, the conductive fluid in the second storage cavity 201 can be compressed into the second conveying channel 202 and then conveyed to the placement gap 300 through the second conveying channel 202.

[0113] It should be noted that when the second deformation part 203 is squeezed, the second deformation part 203 will compress the accommodating space of the second storage cavity 201, thereby reducing the accommodating space of the second storage cavity 201.

[0114] The embodiments of this application provide a first conductive connector 100 with at least one first hole and a second conductive connector 200 with at least one second hole, wherein the opening ends of the first hole and the opening ends of the second hole face each other along a first direction.

[0115] In some implementations, the inner cavity of the first hole is used to contain conductive fluid.

[0116] It is understandable that the conductive fluid can pass through the open end of the first hole and enter the inner cavity of the first hole.

[0117] In some implementations, the inner cavity of the second hole is used to contain conductive fluid.

[0118] Understandably, the conductive fluid can pass through the opening of the second hole and enter the inner cavity of the second hole.

[0119] In some embodiments, the inner cavity of the first hole is used to contain conductive fluid, and the inner cavity of the second hole is used to contain conductive fluid.

[0120] It is understandable that the conductive fluid can pass through the opening end of the first hole and enter the inner cavity of the first hole, and the conductive fluid can pass through the opening end of the second hole and enter the inner cavity of the second hole.

[0121] It should be noted that the number of the first hole can be one, two, three, or any other integer value greater than or equal to one. There is no restriction here, and it can be selected according to actual usage needs.

[0122] It should be noted that if there is no limit to the number of first holes, there is no limit to the number of second holes. It is only necessary to ensure that the number of second holes is equal to the number of first holes, and that the opening end of one second hole and the opening end of one first hole face each other.

[0123] In some implementations, the first hole and the second hole are used to receive a bolt, in which case the diameters of the first hole and the second hole are the same. The bolt passes through the first hole and the second hole.

[0124] Furthermore, this combined sensor structure can improve the connection strength between the first conductive connector 100, the second conductive connector 200 and the external connector, and the first conductive connector 100, the external connector and the second conductive connector 200 can be fixed with bolts to make the contact area between the first conductive connector 100 and the external connector, as well as between the second conductive connector and the external connector.

[0125] Furthermore, the first hole and the second hole can be threaded holes. The setting of threaded holes can improve the connection strength between the bolt and the first conductive connector 100 and the second conductive connector 200, thereby extending the service life of the combined current transformer.

[0126] Furthermore, when the first hole and the second hole are threaded holes, two sets of threaded holes can be set, namely two first threaded holes and two second threaded holes. The two first threaded holes and the two second threaded holes are matched one-to-one, and the opening ends of the first threaded holes and the opening ends of the second threaded holes face each other. The diameters of the first threaded holes and the second threaded holes are the same.

[0127] It is understandable that increasing the number of threaded holes can improve the connection strength between the first conductive connector 100, the external connector, and the second conductive connector 200. Furthermore, by optimizing the location of the threaded holes, the surface stress concentration of the first conductive connector 100 and the second conductive connector 200 can be reduced.

[0128] In some embodiments, when the first conductive connector 100 has a first storage cavity 101, the bolt can pass through the first storage cavity 101, that is, the bolt passes through the first deformable part 103 and the first conductive part 104, and part of the bolt thread is located inside the first storage cavity 101.

[0129] It is understandable that when the bolt passes through the first storage cavity 101, during the bolt tightening process, the bolt can squeeze the first deformation part 103 so that the first deformation part 103 changes from the first form to the second form, thereby reducing the volume space of the first storage cavity 101 so that the conductive fluid in the first storage cavity 101 reaches the placement gap 300 after passing through the first delivery channel 102.

[0130] In some embodiments, when the second conductive connector 200 has a second storage cavity 201, the bolt can pass through the second storage cavity 201, that is, the bolt passes through the second deformable part 203 and the second conductive part 204, and part of the bolt thread is located inside the second storage cavity 201.

[0131] It is understandable that when the bolt passes through the second storage cavity 201, during the bolt tightening process, the bolt can squeeze the second deformation part 203 so that the second deformation part 203 switches from the third form to the fourth form, thereby reducing the volume space of the second storage cavity 201 so that the conductive fluid in the second storage cavity 201 reaches the placement gap 300 after passing through the second delivery channel 202.

[0132] In some embodiments, when the first conductive connector 100 has a first storage cavity 101, the bolt can pass through the first storage cavity 101, that is, the bolt passes through the first deformation portion 103 and the first conductive portion 104, and a portion of the bolt thread is located within the first storage cavity 101. When the second conductive connector 200 has a second storage cavity 201, the bolt can pass through the second storage cavity 201, that is, the bolt passes through the second deformation portion 203 and the second conductive portion 204, and a portion of the bolt thread is located within the second storage cavity 201.

[0133] It is understandable that when the bolt passes through the first storage cavity 101, during the bolt tightening process, the bolt can squeeze the first deformation part 103 so that the first deformation part 103 changes from the first form to the second form, thereby reducing the volume space of the first storage cavity 101 so that the conductive fluid in the first storage cavity 101 reaches the placement gap 300 after passing through the first delivery channel 102.

[0134] It is understandable that when the bolt passes through the second storage cavity 201, during the bolt tightening process, the bolt can squeeze the second deformation part 203 so that the second deformation part 203 switches from the third form to the fourth form, thereby reducing the volume space of the second storage cavity 201 so that the conductive fluid in the second storage cavity 201 reaches the placement gap 300 after passing through the second delivery channel 202.

[0135] It should be noted that the terms "one embodiment," "embodiment," "exemplary embodiment," "some embodiments," etc., mentioned in the specification indicate that the described embodiment may include a specific feature, structure, or characteristic, but not every embodiment necessarily includes that specific feature, structure, or characteristic. Furthermore, such phrases do not necessarily refer to the same embodiment. Moreover, when a specific feature, structure, or characteristic is described in connection with an embodiment, implementing such a feature, structure, or characteristic in conjunction with other embodiments, whether explicitly described or not, is within the knowledge scope of those skilled in the art.

[0136] Generally speaking, terms should be understood at least in part by their use in context. For example, at least in part by context, the term "one or more" as used in the text can be used to describe any feature, structure, or characteristic of the singular meaning, or a combination of features, structures, or characteristics of the plural meaning. Similarly, at least in part by context, terms such as "a" or "the" can also be understood to convey either singular or plural usage.

[0137] It should be readily understood that the terms “on,” “above,” and “on top of” in this application should be interpreted in the broadest possible sense, such that “on” means not only “directly on something” but also “on something” with an intermediate feature or layer therebetween, and that “above” or “on top of” means not only “on something” but also “on something” without an intermediate feature or layer therebetween (i.e., directly on something).

[0138] Furthermore, for ease of explanation, spatially relative terms such as "below," "below," "under," "above," and "above" may be used to describe the relationship of one element or feature relative to other elements or features as shown in the figures. Spatially relative terms are intended to encompass different orientations of the device in use or operation other than those shown in the figures. The device may have other orientations (rotated 90° or in other orientations), and the spatially relative descriptive terms used herein may be interpreted accordingly.

[0139] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this application.

Claims

1. A combined current transformer, characterized in that, include: Current transformer body; The base (10) is provided on the transformer body; At least one conductive connector group is connected to the base (10), and one of the conductive connector groups includes: a first conductive connector (100) and a second conductive connector (200), wherein the first conductive connector (100) and the second conductive connector (200) are disposed opposite to each other along a first direction; The first conductive connector (100) and the second conductive connector (200) cooperate to form a placement gap (300), which is used to accommodate an external connector. When the external connector is located in the placement gap (300), the first conductive connector (100) and the second conductive connector (200) are conductively connected to the external connector.

2. The combined current transformer according to claim 1, characterized in that, The first conductive connector (100) has a first storage cavity (101) for containing conductive fluid and a first delivery channel (102) communicating with the first storage cavity (101), the first storage cavity (101) being connected to the placement gap (300) through the first delivery channel (102).

3. A combined current transformer according to claim 2, characterized in that, The first conductive connector (100) includes a first deformable part (103) and a first conductive part (104) connected together, wherein the first deformable part (103) is located on the side of the first conductive part (104) away from the second conductive connector (200); The first deformable portion (103) and the first conductive portion (104) surround to form the first storage cavity (101), the first deformable portion (103) forms at least one cavity wall of the first storage cavity (101), and the first conveying channel (102) is provided on the first conductive portion (104).

4. A combined current transformer according to claim 2, characterized in that, Multiple first conveying channels (102) are provided, and the multiple first conveying channels (102) are spaced apart along the first direction.

5. A combined current transformer according to claim 3, characterized in that, The first deformable part (103) has a first form under normal conditions and a second form under pressure; the first deformable part (103) is configured to switch from the first form to the second form when subjected to external pressure; When the first deformable part (103) switches from the first form to the second form, the volume space of the first storage cavity (101) decreases.

6. A combined current transformer according to claim 1, characterized in that, The second conductive connector (200) has a second storage cavity (201) for containing conductive fluid and a second delivery channel (202) communicating with the second storage cavity (201), the second storage cavity (201) being connected to the placement gap (300) through the second delivery channel (202).

7. A combined current transformer according to claim 6, characterized in that, The second conductive connector (200) includes a second deformable part (203) and a second conductive part (204) connected together, wherein the second deformable part (203) is located on the side of the second conductive part (204) away from the first conductive connector (100); The second deformable portion (203) and the second conductive portion (204) surround to form the second storage cavity (201), the second deformable portion (203) forms at least one cavity wall of the second storage cavity (201), and the second delivery channel (202) is provided on the second conductive portion (204).

8. A combined current transformer according to claim 6, characterized in that, Multiple second conveying channels (202) are provided, and multiple second conveying channels (202) are spaced apart along the direction intersecting the first direction.

9. A combined current transformer according to claim 7, characterized in that, The second deformation part (203) has a third form under normal conditions and a fourth form under pressure; the second deformation part (203) is configured to switch from the third form to the fourth form when subjected to external pressure; When the second deformation switches from the third form to the fourth form, the volume of the second storage cavity (201) decreases.

10. A combined current transformer according to any one of claims 1-9, characterized in that, The first conductive connector (100) has at least one first hole, and the second conductive connector (200) has at least one second hole. Along the first direction, the opening ends of the first hole and the opening ends of the second hole face each other. The inner cavity of the first hole is used to contain conductive fluid; And / or, the inner cavity of the second hole is used to contain conductive fluid.

Images