Connection structure and terminal strip

Abstract

The invention provides a connection structure and a terminal strip, and relates to the technical field of power system testing. The connection structure comprises a first conductor, one end of which is a voltage input part and the other end of which is a voltage output part; one end of the second conductor is a current input part, and the other end of the second conductor is a current output part; the isolation piece is an insulator, is arranged between the first conductor and the second conductor and is used for isolating the first conductor from the second conductor; and the insulating layer covers a part of the first conductor in length and exposes the voltage output part, the insulating layer covers a part of the second conductor in length and exposes the current output part, and the voltage output part and the current output part jointly form a plugging part. According to the structure, voltage and current paths can be separated, the influence of heat generated when current passes through a contact point on voltage measurement is reduced, the first conductor and the second conductor can be isolated, and contact resistance generated by direct contact between the two conductors is prevented.

Description

Technical Field

[0001] The present application relates to the technical field of power system testing, and in particular to a connection structure and a terminal block. Background Art

[0002] In the construction, reconstruction, expansion and maintenance of substations and power plants, a large amount of electrical equipment-related work is involved. In order to ensure that these electrical equipment can be put into operation safely and reliably, electrical equipment testing is a vital means. The most effective method is to judge whether the equipment is in operating condition through test data results. Usually, the secondary windings of various electrical equipment are connected to the terminal blocks in the corresponding control cabinet through power cables, which is convenient for connection with protection devices, measurement and control devices and other equipment.

[0003] However, the existing technical solutions have some disadvantages. When using a test instrument to perform various tests on the secondary winding of an electrical device, the voltage output terminal and the current output terminal of the test instrument are inserted into a connection hole of a terminal block in a plug-in connection manner. This connection method will inevitably produce a certain contact resistance, which will cause significant errors in the DC resistance test data and the volt-ampere characteristic test data of the secondary winding. These errors may lead to misjudgment of the test item data, thereby affecting the safety and reliability of the electrical equipment.

[0004] Therefore, how to provide a testing device and a terminal block that avoids the generation of contact resistance is a problem that urgently needs to be solved. Summary of the invention

[0005] The purpose of the embodiments of the present application is to provide a testing device and a terminal block to solve the problem of contact resistance generated when the voltage output terminal and the current output terminal of the testing instrument are inserted into the terminal block.

[0006] In order to solve the above technical problems, the embodiments of the present application provide the following technical solutions:

[0007] The first aspect of the present application provides a connection structure, including: a first conductor, one end of which is a voltage input part and the other end of which is a voltage output part; a second conductor, one end of which is a current input part and the other end of which is a current output part; an isolating member, which is an insulator, is arranged between the first conductor and the second conductor, and is used to isolate the first conductor from the second conductor; an insulating layer, the insulating layer covers a portion of the length of the first conductor and exposes the voltage output part, and the insulating layer covers a portion of the length of the second conductor and exposes the current output part, and the voltage output part and the current output part together form a plug-in part.

[0008] In some embodiments, one end of the isolator is flush with the voltage input portion of the first conductor and the current input portion of the second conductor, and the other end of the isolator extends along the extension direction of the first conductor, making it longer than the first conductor and the second conductor.

[0009] In some embodiments, the voltage output portion and the current output portion are symmetrical with respect to the isolation element structure.

[0010] In some embodiments, the voltage output portion has a first connection surface, which is located on the side of the voltage output portion opposite to the isolation element; the current output portion has a second connection surface, which is located on the side of the current output portion opposite to the isolation element.

[0011] In some embodiments, the ratio of the length of the insulating layer covering the first conductor to the length of the voltage output portion is 60%:40%; the ratio of the length of the insulating layer covering the second conductor to the length of the current output portion is 60%:40%.

[0012] In some embodiments, the connection structure also includes: a first flexible conductor, one end of which is connected to the first conductor and the other end is provided with a first connection portion for voltage input; a second flexible conductor, one end of which is connected to the second conductor and the other end is provided with a second connection portion for current input; the outer periphery of the first flexible conductor and the second flexible conductor is coated with an insulating layer to insulate the first flexible conductor from the second flexible conductor.

[0013] In some embodiments, the first connecting part is provided with a first guide core, the first guide core has an insertion hole, and the outer periphery of the first guide core is covered with an insulating layer; the second connecting part is provided with a second guide core, the second guide core has an insertion hole, and the outer periphery of the second guide core is covered with an insulating layer.

[0014] In some embodiments, the first conductor and the second conductor are both connected to the isolation member through an adhesive layer.

[0015] The second aspect of the present application provides a terminal block, comprising: a main body, which has a plurality of connecting sockets; a connecting structure, the connecting structure comprising: a first conductor, one end of which is a voltage input part, and the other end is a voltage output part; a second conductor, one end of which is a current input part, and the other end is a current output part, the second conductor and the first conductor have the same extension direction, and the current output part of the second conductor and the voltage output part of the first conductor are on the same side; an isolating member, which is an insulator, is arranged between the first conductor and the second conductor, and is used to isolate the first conductor from the second conductor; an insulating layer, the insulating layer covers a portion of the length of the first conductor along the extension direction of the first conductor and exposes the voltage output part, the insulating layer covers a portion of the length of the second conductor along the extension direction of the second conductor and exposes the current output part, the voltage output part and the current output part together form a plug-in part; the plug-in part is plugged into any plug-in hole among the plurality of connecting sockets.

[0016] In some embodiments, the first connection surface of the voltage output portion completely abuts against the inner wall of the connection socket, and the second connection surface of the current output portion completely abuts against the inner wall of the connection socket.

[0017] Compared with the prior art, the first aspect of the present application provides a connection structure and terminal row, including a first conductor, a second conductor, an isolator and an insulating layer. The voltage output terminal of the test instrument is connected to the first conductor, and the current output terminal of the test instrument is connected to the second conductor. Since an isolator is provided between the first conductor and the second conductor, the first conductor and the second conductor are isolated, and the first conductor and the second conductor exposed outside the insulating layer together form a plug-in portion for connection. The first conductor and the second conductor are responsible for the transmission of voltage and current respectively. This division of labor separates the voltage and current paths, reducing the influence of heat generated by current passing through the contact point on voltage measurement. The isolator is an insulator, which is arranged between the first conductor and the second conductor, and is used to physically isolate the two conductors, which can prevent the resistance generated by direct contact between the first conductor and the second conductor, and also avoid the resistance change caused by poor contact. The insulating layer covers part of the length of the first conductor and the second conductor, but exposes the voltage output part and the current output part, ensuring that only specific parts (i.e., the voltage output part and the current output part) will contact other conductors during the connection process, thereby reducing the generation of contact resistance. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] By reading the detailed description below with reference to the accompanying drawings, the above and other purposes, features and advantages of the exemplary embodiments of the present application will become easy to understand. In the accompanying drawings, several embodiments of the present application are shown in an exemplary and non-limiting manner, and the same or corresponding reference numerals represent the same or corresponding parts, wherein:

[0019] Figure 1 A schematic diagram of a connection structure is shown schematically;

[0020] Figure 2 A schematic diagram schematically shows a structural diagram of a connection structure from another angle;

[0021] Figure 3 A partial structural diagram of a connection structure is schematically shown.

[0022] Description of Figure Numbers:

[0023] 1. First conductor; 11. Voltage input part; 12. Voltage output part; 121. First connection surface; 2. Second conductor; 21. Current input part; 22. Current output part; 221. Second connection surface; 3. Isolation piece; 4. Insulation layer; 5. First flexible conductor; 51. First connection part; 511. First conductor core; 521. Insertion hole; 6. Second flexible conductor; 61. Second connection part; 611. Second conductor core; 7. Insertion part. DETAILED DESCRIPTION

[0024] The following is a further detailed description of the implementation methods of the present application in conjunction with the accompanying drawings and examples. The detailed descriptions of the following examples and the accompanying drawings are used to exemplarily illustrate the principles of the present application, but cannot be used to limit the scope of the present application. The present application can be implemented in many different forms and is not limited to the specific embodiments disclosed herein, but includes all technical solutions that fall within the scope of the claims.

[0025] The present application provides these embodiments to make the present application thorough and complete, and to fully express the scope of the present application to those skilled in the art. It should be noted that unless otherwise specifically stated, the relative arrangement of the parts and steps, the composition of the materials, the numerical expressions and the numerical values ​​set forth in these embodiments should be interpreted as being merely exemplary, and not as limiting.

[0026] It should be noted that, in the description of this application, unless otherwise specified, the meaning of "multiple" is greater than or equal to two; the terms "upper", "lower", "left", "right", "inner", "outer", etc., indicating the orientation or positional relationship, are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on this application. When the absolute position of the object being described changes, the relative positional relationship may also change accordingly.

[0027] In addition, the words "first", "second" and similar words used in this application do not indicate any order, quantity or importance, but are only used to distinguish different parts. "Vertical" does not mean vertical in the strict sense, but is within the tolerance range. "Parallel" does not mean parallel in the strict sense, but is within the tolerance range. "Include" or "comprising" and similar words mean that the elements before the word include the elements listed after the word, and do not exclude the possibility of including other elements.

[0028] It should also be noted that in the description of this application, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be directly connected or indirectly connected through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to the specific circumstances. When a specific device is described as being located between a first device and a second device, there may or may not be an intermediate device between the specific device and the first device or the second device.

[0029] All terms used in this application have the same meaning as those understood by those of ordinary skill in the art to which this application belongs, unless otherwise specifically defined. It should also be understood that terms defined in general dictionaries, such as general dictionaries, should be interpreted as having a meaning consistent with their meaning in the context of the relevant technology, and should not be interpreted in an idealized or extremely formal sense, unless explicitly defined herein.

[0030] Technologies, methods, and equipment known to ordinary technicians in the relevant art may not be discussed in detail, but where appropriate, the technologies, methods, and equipment should be considered part of the specification.

[0031] Embodiment 1

[0032] like Figure 1-Figure 3 As shown, the first aspect of the present application discloses a connection structure, including: a first conductor 1, one end of which is a voltage input part 11, and the other end is a voltage output part 12; a second conductor 2, one end of which is a current input part 21, and the other end is a current output part 22; an isolating member 3, which is an insulator, arranged between the first conductor 1 and the second conductor 2, and used to isolate the first conductor 1 from the second conductor 2; an insulating layer 4, the insulating layer 4 covers a partial length of the first conductor 1 and exposes the voltage output part 12, the insulating layer 4 covers a partial length of the second conductor 2 and exposes the current output part 22, and the voltage output part 12 and the current output part 22 together form a plug-in part 7.

[0033] Specifically, the first conductor 1 is used to transmit voltage signals, and it can be made of copper, aluminum or silver-plated copper, etc. The shape of the first conductor 1 can be semi-cylindrical, cylindrical or square cylindrical, etc. Here, the first conductor 1 is a solid semi-cylindrical shape as an example. The radius of the first conductor 1 can be 1 mm or other sizes, and the length can be set according to actual needs, such as: 40 mm, 52 mm or 60 mm, etc. One end of the first conductor 1 is a voltage input part 11, and the other end is a voltage output part 12. The voltage input part 11 is used to receive a voltage signal from a test instrument or other power supply equipment. The voltage input part 11 can be provided with a slot, and a contact piece or other conductive material is provided inside the slot to ensure good electrical connection when inserted. The voltage output part 12 is used to transmit the received voltage signal to a load or other circuit elements. The voltage output part 12 can be a partial section of the first conductor 1, exposed outside the insulating layer 4. The radius of the second conductor 2 can be 1 mm or other sizes, and the length can be set according to actual needs, such as: 40 mm, 52 mm or 60 mm, etc. One end of the second conductor 2 is a current input part 21, and the other end is a current output part 22. The current input part 21 is used to receive current signals from a test instrument or other power supply equipment. The current input part 21 may be provided with a slot, and a contact piece or other conductive material is provided inside the slot to ensure good electrical connection when inserted. The current output part 22 is used to transmit the received current signal to a load or other circuit element. The current output part 22 may be a partial section of the second conductor 2, exposed outside the insulating layer 4. The exposed length of the current output part 22 of the second conductor 2 is the same as or different from that of the voltage output part 12 of the first conductor 1, and can be set according to actual needs. A plug-in part 7 formed by the voltage output part 12 and the current output part 22 may be a cylindrical or other special-shaped connecting part, and the part of the plug-in part 7 used for connection may be a plane or an arc surface, etc.

[0034] The isolator 3 may be a plate-like structure, disposed between the first conductor 1 and the second conductor 2, and used to separate the first conductor 1 from the second conductor 2, and its thickness may be set according to actual needs, such as 1 mm, 2 mm or 3 mm, etc. The extension length of the isolator 3 may be equal to or longer than the length of the first conductor 1 or the second conductor 2, so as to fully isolate the first conductor 1 from the second conductor 2. The isolator 3 may be made of epoxy resin.

[0035] The insulating layer 4 can be made of rubber or glass fiber, and can be coated on the outer periphery of the first conductor 1 and the second conductor 2 by injection molding. The thickness of the insulating layer 4 can be arbitrarily selected, such as 1 mm, 2 mm or 2.5 mm.

[0036] A connection structure provided in the first aspect of the present application includes a first conductor 1, a second conductor 2, an isolator 3 and an insulating layer 4. The voltage output terminal of the test instrument is connected to the first conductor 1, and the current output terminal of the test instrument is connected to the second conductor 2. Since the isolator 3 is arranged between the first conductor 1 and the second conductor 2, the first conductor 1 and the second conductor 2 are isolated, and the parts of the first conductor 1 and the second conductor 2 exposed outside the insulating layer 4 together form a plug-in portion 7 for connection. The first conductor 1 and the second conductor 2 are responsible for the transmission of voltage and current respectively. This division of labor separates the voltage and current paths, and reduces the influence of the heat generated by the current passing through the contact point on the voltage measurement. The isolator 3 is an insulator, which is arranged between the first conductor 1 and the second conductor 2, and is used to physically isolate the two conductors, which can prevent the resistance generated by the direct contact between the first conductor 1 and the second conductor 2, and also avoid the resistance change caused by poor contact. The insulating layer 4 covers a portion of the length of the first conductor 1 and the second conductor 2, but exposes the voltage output part 12 and the current output part 22, ensuring that during the connection process, only specific parts (i.e., the voltage output part 12 and the current output part 22) will contact other conductors, thereby reducing the generation of contact resistance.

[0037] In some embodiments, one end of the isolator 3 is flush with the voltage input part 11 of the first conductor 1 and the current input part 21 of the second conductor 2, and the other end of the isolator 3 extends along the extension direction of the first conductor 1, making it longer than the first conductor 1 and the second conductor 2.

[0038] Specifically, Figure 3 As shown, one end of the isolator 3 is flush with the voltage input portion 11 of the first conductor 1 and the current input portion 21 of the second conductor 2, and the other end of the isolator 3 protrudes from the first conductor 1 and the second conductor 2, and the protruding length can be set according to actual needs. When the plug-in portion 7 is inserted into the connection jack, if there are foreign objects (such as dust, metal filings, etc.) in the connection jack, these foreign objects may bridge the voltage output terminal and the current output terminal, causing a short circuit. The protruding portion of the isolator 3 can push away or avoid these foreign objects during the insertion process, thereby preventing them from causing a short circuit.

[0039] In some embodiments, the voltage output portion 12 and the current output portion 22 are structurally symmetrical with respect to the isolation element 3 .

[0040] Specifically, Figure 1 As shown, the voltage output part 12 and the current output part 22 are symmetrical with respect to the isolating member 3, which can ensure that the force is evenly distributed when inserting or removing the connection, and can reduce the increase in local contact resistance caused by uneven pressure. The symmetrical structure helps prevent the connection parts from shifting during installation or use, which can cause poor contact and increase contact resistance.

[0041] In some embodiments, the voltage output part 12 has a first connection surface 121, which is located on the side of the voltage output part 12 opposite to the isolation element 3; the current output part 22 has a second connection surface 221, which is located on the side of the current output part 22 opposite to the isolation element 3.

[0042] Specifically, Figure 1-Figure 3 As shown, when the first conductor 1 and the second conductor 2 are semi-cylindrical, the first connection surface 121 of the voltage output part 12 can be its surface away from the isolating member 3, and the second surface of the current output part 22 can be its surface away from the isolating member 3. The current output part 22 and the voltage output part 12 are connected by surface contact, which can increase the contact area and improve the stability of the connection when inserted into the connecting jack. The first connection surface 121 and the second connection surface 221 can be arcuate surfaces. The arcuate surface can provide a larger contact area relative to the plane, which helps to reduce the contact resistance per unit area. In addition, the arcuate surface helps self-alignment during connection. Even if there is a slight position deviation between the connecting jack and the plug-in part 7, the arcuate surface can automatically adjust to a certain extent to ensure good contact.

[0043] In some embodiments, the ratio of the length of the insulating layer 4 covering the first conductor 1 to the length of the voltage output portion 12 is 60%:40%; the ratio of the length of the insulating layer 4 covering the second conductor 2 to the length of the current output portion 22 is 60%:40%.

[0044] Specifically, Figure 1-Figure 2 As shown, the ratio of the length of the first conductor 1 covered by the insulating layer 4 to the length of the voltage output part 12 is 60%:40%, and the ratio of the length of the second conductor 2 covered by the insulating layer 4 to the length of the current output part 22 is 60%:40%. The insulating layer 4 covering 60% of the length can provide sufficient insulation protection to prevent accidental contact from causing a short circuit, while retaining sufficient exposed parts to ensure good electrical connection. Such a ratio can meet the size requirements of most standard connection sockets, so that the plug-in part 7 can be used on a variety of terminal blocks, improving versatility.

[0045] In some embodiments, the connection structure also includes: a first flexible conductor 5, one end of which is connected to the first conductor 1, and the other end is provided with a first connecting portion 51 for voltage input; a second flexible conductor 6, one end of which is connected to the second conductor 2, and the other end is provided with a second connecting portion 61 for current input; the outer periphery of the first flexible conductor 5 and the second flexible conductor 6 is coated with an insulating layer 4 to insulate the first flexible conductor 5 from the second flexible conductor 6.

[0046] Specifically, Figure 1-Figure 2As shown, the first flexible conductor 5 can be a single strand loose core with a cross-sectional area of ​​1.5 square millimeters, which can be made of copper wire, and its length can be set according to actual needs, such as: 50 mm, 100 mm or 120 mm, etc. One end of it can be connected to the first conductor 1 by welding, and the other end is provided with a first connecting portion 51, and the first connecting portion 51 can be connected to the voltage output terminal of the test instrument by plugging. The second flexible conductor 6 can be a single strand loose core with a cross-sectional area of ​​1.5 square millimeters, which can be made of copper wire, and its length can be set according to actual needs, such as: 50 mm, 100 mm or 120 mm, etc. The length of the second flexible conductor 6 can be the same as or different from the length of the first conductor 1, and one end of it can be connected to the second conductor 2 by welding, and the other end is provided with a second connecting portion 61, and the second connecting portion 61 can be connected to the current output terminal of the test instrument by plugging. The outer periphery of the first flexible conductor 5 and the second flexible conductor 6 is wrapped with a soft rubber insulation layer 4 with a thickness of 2 mm. The first flexible conductor 5 and the second flexible conductor 6 can be bent and twisted, which enables them to adapt to connections of different shapes and angles, thereby improving the adaptability of the connection structure, especially in situations where space is limited or the connection path is complex.

[0047] In some embodiments, the first connecting part 51 is provided with a first guide core 511, the first guide core 511 has a socket 521, and the outer periphery of the first guide core 511 is covered with an insulating layer 4; the second connecting part 61 is provided with a second guide core 611, the second guide core 611 has a socket 521, and the outer periphery of the second guide core 611 is covered with an insulating layer 4.

[0048] Specifically, Figure 1-Figure 2 As shown, the jack 521 is used to insert the connecting terminal of the test instrument or other equipment to ensure electrical connection. The jack 521 can be formed as a circular, directional or stepped hole, etc., and its diameter can be 3 mm, 4 mm or 8 mm, etc. The first conductor 511 and the second conductor 611 can be made of hard pure copper, and their lengths can be set according to actual needs, such as: 20 mm, 30 mm or 40 mm, etc. Its thickness can be 1 mm, 3 mm or 3.5 mm, etc. The outer periphery of the first conductor 511 and the second conductor 611 is wrapped with a 2 mm soft rubber insulation layer 4. Through the connection terminal between the jack 521 and the test instrument, it is connected in a plug-in connection manner, without the need for complicated wiring or welding processes, and the conductor only needs to be inserted into the corresponding jack 521. The voltage output terminal and the current output terminal of the test instrument are connected to the first conductor 511 and the second conductor 611 respectively, which can isolate the two connecting terminals and reduce the generation of contact resistance.

[0049] In some embodiments, the first conductor 1 and the second conductor 2 are both connected to the isolation member 3 via an adhesive layer.

[0050] Specifically, the adhesive layer may be an epoxy resin adhesive layer, a silicone adhesive layer, a polyurethane adhesive layer, etc. In addition to fixing the first conductor 1 and the isolating member 3 by the adhesive layer, the first conductor 1 and the isolating member 3 and the second conductor 2 and the isolating member 3 may also be fixed by mortise and tenon joints.

[0051] Embodiment 2

[0052] The second aspect of the present application provides a terminal block, including: a main body, which has a plurality of connecting sockets; a connecting structure, the connecting structure including: a first conductor 1, one end of which is a voltage input part 11, and the other end is a voltage output part 12; a second conductor 2, one end of which is a current input part 21, and the other end is a current output part 22, the second conductor 2 and the first conductor 1 have the same extension direction, and the current output part 22 of the second conductor 2 and the voltage output part 12 of the first conductor 1 are on the same side; an isolating member 3, which is an insulator, is arranged between the first conductor 1 and the second conductor 2, and is used to isolate the first conductor 1 from the second conductor 2; an insulating layer 4, the insulating layer 4 covers a portion of the length of the first conductor 1 along the extension direction of the first conductor 1, and exposes the voltage output part 12, the insulating layer 4 covers a portion of the length of the second conductor 2 along the extension direction of the second conductor 2, and exposes the current output part 22, the voltage output part 12 and the current output part 22 together form a plug-in part 7; the plug-in part 7 is plugged into any plug-in hole among the plurality of connecting sockets.

[0053] Specifically, the terminal row can be a test terminal row, a signal terminal row, etc. The terminal row includes a main body, which has a plurality of connection jacks for accommodating a plurality of plug-in parts 7. The terminal row provided in the present application includes a first conductor 1, a second conductor 2, an isolator 3 and an insulating layer 4. The voltage output terminal of the test instrument is connected to the first conductor 1, and the current output terminal of the test instrument is connected to the second conductor 2. Since an isolator 3 is provided between the first conductor 1 and the second conductor 2, the first conductor 1 and the second conductor 2 are isolated, and the first conductor 1 and the second conductor 2 are exposed outside the insulating layer 4 to form a plug-in part 7 for connection. The first conductor 1 and the second conductor 2 are respectively responsible for the transmission of voltage and current. This division of labor separates the voltage and current paths, and reduces the influence of the heat generated by the current passing through the contact point on the voltage measurement. The isolator 3 is an insulator, which is arranged between the first conductor 1 and the second conductor 2, and is used to physically isolate the two conductors, which can prevent the resistance generated by the direct contact between the first conductor 1 and the second conductor 2, and also avoid the resistance change caused by poor contact. The insulating layer 4 covers a portion of the length of the first conductor 1 and the second conductor 2, but exposes the voltage output part 12 and the current output part 22, ensuring that during the connection process, only specific parts (i.e., the voltage output part 12 and the current output part 22) will contact other conductors, thereby reducing the generation of contact resistance.

[0054] In some embodiments, the first connection surface 121 of the voltage output portion 12 completely abuts against the inner wall of the connection socket, and the second connection surface 221 of the current output portion 22 completely abuts against the inner wall of the connection socket.

[0055] Specifically, along the relative direction of the first conductor 1 and the second conductor 2, the sum of the thickness of the thickest part of the first conductor 1, the thickness of the thickest part of the isolator 3, and the thickness of the thickest part of the second conductor 2 is equal to or greater than the diameter of the connection socket, and the first connection surface 121 and the second connection surface 221 are both adapted to the shape of the connection socket, so that it can be ensured that the first connection surface 121 is completely in contact with the inner wall of the connection socket, and the second connection surface 221 of the current output part 22 is completely in contact with the inner wall of the connection socket. Such a setting can make the connection between the plug part 7 and the connection socket more stable, and it is not easy to cause poor contact due to vibration or temperature change, and reduce the possibility of air and moisture entering the contact area, thereby reducing the risk of corrosion.

[0056] The above is only a specific implementation of the present application, but the protection scope of the present application is not limited thereto. Any person skilled in the art who is familiar with the present technical field can easily think of changes or substitutions within the technical scope disclosed in the present application, which should be included in the protection scope of the present application. Therefore, the protection scope of the present application should be based on the protection scope of the claims.

Claims

1. A connection structure, It is characterized in that include: A first conductor, one end of which is a voltage input portion and the other end of which is a voltage output portion; A second conductor, one end of which is a current input portion and the other end of which is a current output portion; An isolating member, which is an insulator, is disposed between the first conductor and the second conductor and is used to isolate the first conductor from the second conductor; An insulating layer, wherein the insulating layer covers a portion of the length of the first conductor and exposes the voltage output portion, and the insulating layer covers a portion of the length of the second conductor and exposes the current output portion, and the voltage output portion and the current output portion together form a plug-in portion.

2. The connection structure according to claim 1, It is characterized in that One end of the isolating member is flush with the voltage input portion of the first conductor and the current input portion of the second conductor, and the other end of the isolating member extends along the extension direction of the first conductor, making it longer than the first conductor and the second conductor.

3. The connection structure according to claim 1, It is characterized in that The voltage output portion and the current output portion are structurally symmetrical with respect to the isolation element.

4. The connection structure according to claim 3, It is characterized in that The voltage output portion has a first connection surface, and the first connection surface is located on a side of the voltage output portion opposite to the isolation element; The current output portion has a second connection surface, and the second connection surface is located on a side of the current output portion opposite to the isolation element.

5. The connection structure according to claim 1 or 2, It is characterized in that The ratio of the length of the insulating layer covering the first conductor to the length of the voltage output portion is 60%:40%; The ratio of the length of the insulating layer covering the second conductor to the length of the current output portion is 60%:40%.

6. The connection structure according to claim 1, It is characterized in that Also includes: A first flexible conductor, one end of which is connected to the first conductor and the other end of which is provided with a first connecting portion for voltage input; A second flexible conductor, one end of which is connected to the second conductor and the other end of which is provided with a second connecting portion for current input; The outer circumferences of the first flexible conductor and the second flexible conductor are covered with the insulating layer to insulate the first flexible conductor from the second flexible conductor.

7. The connection structure according to claim 6, It is characterized in that The first connecting portion is provided with a first guide core, the first guide core has a plug hole, and the outer periphery of the first guide core is covered with the insulating layer; The second connecting portion is provided with a second guide core, the second guide core has an insertion hole, and the outer periphery of the second guide core is covered with the insulation layer.

8. The connection structure according to claim 1, It is characterized in that The first conductor and the second conductor are both connected to the isolation member through an adhesive layer.

9. A terminal block, It is characterized in that include: A main body having a plurality of connection jacks; A connection structure, the connection structure comprising: A first conductor, one end of which is a voltage input portion and the other end of which is a voltage output portion; a second conductor, one end of which is a current input portion and the other end of which is a current output portion, the second conductor and the first conductor extend in the same direction, and the current output portion of the second conductor and the voltage output portion of the first conductor are on the same side; An isolating member, which is an insulator, is disposed between the first conductor and the second conductor and is used to isolate the first conductor from the second conductor; an insulating layer, wherein the insulating layer covers a portion of the length of the first conductor along an extension direction of the first conductor and exposes the voltage output portion, and the insulating layer covers a portion of the length of the second conductor along an extension direction of the second conductor and exposes the current output portion, wherein the voltage output portion and the current output portion together form a plug-in portion; The plug-in portion is plugged into any plug-in hole among the plurality of connection plug-in holes.

10. The terminal block according to claim 9, It is characterized in that The first connection surface of the voltage output part completely abuts against the inner wall of the connection socket, and the second connection surface of the current output part completely abuts against the inner wall of the connection socket.

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