Leading-out sheet, relay, mutual inductance relay module and mutual inductance relay module installation method

Abstract

The invention provides a leading-out sheet, a relay, a mutual inductance relay module and a mutual inductance relay module installation method, and relates to the technical field of electronics. The lead-out piece comprises a body part and a pre-bending part, the pre-bending part is connected to the body part, and a first included angle is formed between the pre-bending part and the body part, so that an avoiding space is formed between the body part and the pre-bending part, and the avoiding space is used for avoiding adjacent components. The pre-bending part and the body part are arranged at the first included angle and form the avoiding space, and the mounting gap is reserved in advance, so that the lead-out sheet is prevented from being rigidly collided with an adjacent component during assembly, and deformation and position deviation of the lead-out sheet are avoided. Meanwhile, the avoiding space can be matched with the contours of adjacent parts and completely and effectively avoid the adjacent parts, the body part and the pre-bending part do not need to be bent or transformed again, traditional secondary bending is simplified into one-time bending forming, the assembling time of the leading-out piece is shortened, and the assembling efficiency is improved.

Description

Technical Field

[0001] This invention generally relates to the field of electronic technology, and more specifically, to a lead-out piece, a relay, a mutual inductance relay module, and a method for installing the mutual inductance relay module. Background Technology

[0002] In current current instrument transformer and relay assembly, before installing the instrument transformer, the leads are extended away from the instrument transformer to provide more installation space. After the instrument transformer is installed, the leads are then adjusted back to normal. For a three-set instrument transformer structure, this may even require two normalization operations. The operation steps are cumbersome and cannot be automated, thus affecting assembly efficiency. Summary of the Invention

[0003] This invention provides a lead-out piece, a relay, a mutual inductance relay module, and a method for installing the mutual inductance relay module, which simplifies the assembly steps and improves assembly efficiency.

[0004] According to a first aspect of the present invention, a lead sheet is provided, comprising: Body part; The pre-bent portion is connected to the main body and is set at a first angle to the main body, so that a clearance space is formed between the main body and the pre-bent portion, and the clearance space is used to avoid adjacent components.

[0005] In some embodiments, the pre-bent portion is configured to be able to adjust the included angle relative to the body portion, such that the pre-bent portion and the body portion are set at a second included angle.

[0006] In some embodiments, the second included angle is smaller than the first included angle.

[0007] In some embodiments, a clearance groove is provided at the connection position between the main body and the pre-bent portion, so that the pre-bent portion can be bent toward the main body.

[0008] In some embodiments, the body portion and the pre-bent portion are integrally formed structures.

[0009] In some embodiments, the body portion includes a fixed section, a first intermediate section and a second intermediate section, the fixed section being connected to the second intermediate section via the first intermediate section, and the end of the second intermediate section away from the first intermediate section being connected to the pre-bent portion; The fixed section and the first intermediate section are arranged at a third angle, the first intermediate section and the second intermediate section are arranged at a fourth angle, the second intermediate section and the pre-bent section are arranged at the first angle, and the clearance space is located between the second intermediate section and the pre-bent section.

[0010] In some embodiments, the pre-bent portion is provided with a welding zone.

[0011] According to a second aspect of the present invention, an embodiment of the present invention also provides a relay, including a relay body and the aforementioned lead-out piece, wherein the body portion of the lead-out piece is connected to the relay body.

[0012] According to a third aspect of the present invention, an embodiment of the present invention also provides a mutual inductance relay module, including a mutual inductor and the aforementioned relay, wherein the mutual inductor is connected to the relay, the lead-out piece of the relay passes through the mutual inductor, and the clearance space formed between the body portion and the pre-bent portion of the lead-out piece can avoid the adjacent components.

[0013] In some embodiments, the current transformer includes a current transformer housing and a coil assembly, the current transformer housing including at least two mounting portions arranged along a third direction for mounting the coil assembly; Wherein, the lead-out piece is located between two adjacent mounting portions; and / or, the lead-out piece is located on the outer side of the plurality of mounting portions along the third direction.

[0014] In some embodiments, the transformer housing further includes a connecting portion, with adjacent mounting portions connected by the connecting portion, and a gap groove formed between adjacent mounting portions and the connecting portion, through which the lead-out piece passes.

[0015] In some embodiments, the mounting portion and the connecting portion are integrally formed.

[0016] In some embodiments, the number of mounting parts is three, the three mounting parts are arranged along a third direction, and the three mounting parts are used to correspondingly mount the three coil assemblies; The number of lead-out pieces is three. The three lead-out pieces and the three mounting parts are correspondingly arranged and arranged along the third direction. There is one lead-out piece between each two adjacent mounting parts, and the other lead-out piece is located on the outside of the plurality of mounting parts along the third direction.

[0017] In some embodiments, the number of mounting parts is three, the three mounting parts are arranged along a third direction, and the three mounting parts are used to correspondingly mount the three coil assemblies; The relay also includes a molded lead-out piece, and there are two lead-out pieces. The two lead-out pieces, one molded lead-out piece, and three mounting parts are correspondingly arranged and arranged along the third direction. There is one lead-out piece between each two adjacent mounting parts. The molded lead-out piece is connected to the relay body and is located on the outside of the plurality of mounting parts along the third direction.

[0018] In some embodiments, the molded lead-out includes: This part is connected to the relay; A bent portion is connected to the end of the main body away from the relay, and the bent portion is set at a second included angle with the main body.

[0019] In some embodiments, the main body and the bent portion are integrally formed structures.

[0020] In some embodiments, the mounting part is provided with a mounting groove and a positioning hole, the mounting groove is arranged around the positioning hole, and the coil assembly is disposed in the mounting groove; The relay also includes a conductive element, which is connected to the relay body and spaced apart from the lead-out piece, and the conductive element passes through the positioning hole.

[0021] In some embodiments, the lead-out piece and the conductive element are located on the side of the relay body facing the transformer housing; And / or, the conductive element is located on the side of the relay body facing the transformer housing.

[0022] In some embodiments, the conductive element includes: A conductive body is provided through the positioning hole and is detachably connected to the positioning hole; A protrusion is provided on the conductive body, and an arc-shaped surface is provided on the side of the protrusion away from the conductive body. The arc-shaped surface is used to abut against the inner wall of the positioning hole.

[0023] In some embodiments, the bump is disposed on at least one side of the conductive body along a first direction; And / or, the bump is disposed on at least one side of the conductive body along the second direction; And / or, the bump is disposed on at least one side of the conductive body along a third direction; Wherein, the first direction is the length direction of the conductive body, the second direction is the thickness direction of the conductive body, and the third direction is the width direction of the conductive body, and the first direction, the second direction, and the third direction are perpendicular to each other.

[0024] In some embodiments, the conductive body is provided with a guide surface along a first direction and on a side away from the relay body, the guide surface being located on at least one side of the conductive body along the third direction; Wherein, the first direction is the length direction of the conductive body, the third direction is the width direction of the conductive body, and the first direction and the third direction are perpendicular to each other.

[0025] In some embodiments, the transformer housing includes a housing and a positioning post disposed within the housing, the positioning hole is disposed on the positioning post, and the mounting groove is formed between the outer wall of the positioning post and the inner wall of the housing; Along the axial direction of the positioning hole, at least one side of the positioning post is provided with a guide slope, so that the conductive element is guided into the positioning hole through the guide slope.

[0026] In some embodiments, the positioning hole includes: The insertion part has its inner wall in contact with the outer wall of the conductive element. The receiving portion is arranged at an angle to the insertion portion and communicates with the insertion portion; Wherein, the guide slope is provided around the edge of the insertion part; or, the guide slope is provided on the inner wall of the insertion part and / or the inner wall of the receiving part.

[0027] According to a fourth aspect of the present invention, an embodiment of the present invention also provides a method for installing a mutual inductor relay module, for installing the aforementioned mutual inductor relay module, the method comprising the following steps: The pre-bent portion is bent relative to the main body portion, such that the pre-bent portion and the main body portion are arranged at a first included angle to form a lead-out piece; The main body portion of the lead-out piece is connected to the relay body; The current transformer and the relay body are assembled to form a current transformer relay module, and the clearance space formed between the body part and the pre-bent part avoids the current transformer.

[0028] In some embodiments, the current transformer includes a current transformer housing and a coil assembly, the current transformer housing including at least two mounting portions arranged along a third direction for mounting the coil assembly; Assembling the current transformer and the relay body to form a current transformer relay module includes the following steps: The relay body and the current transformer are moved closer to each other, and the lead-out piece passes between two adjacent mounting portions in the current transformer; and / or, the lead-out piece is located on the outside of the current transformer housing along the third direction.

[0029] In some embodiments, after the lead-out piece passes between two adjacent mounting portions in the current transformer, the following step is further included: The pre-bent portion is bent relative to the main body portion, such that the pre-bent portion and the main body portion are arranged at a second included angle.

[0030] In some embodiments, the following steps are included before assembling the current transformer and the relay body to form a current transformer relay module: The bent portion is bent relative to the main portion, such that the bent portion and the main portion are arranged at a second included angle to form a molded lead-out part; The molded lead and the lead piece are arranged along a third direction, and the main body of the molded lead is connected to the relay body.

[0031] In some embodiments, the current transformer includes a current transformer housing and a coil assembly, the current transformer housing including at least two mounting portions arranged along a third direction for mounting the coil assembly; The assembly of the current transformer and the relay body to form a current transformer relay module includes the following steps: The relay body and the current transformer are moved closer to each other, and the lead-out piece passes between two adjacent mounting portions in the current transformer, with the shaped lead-out piece located on the outside of the current transformer housing along the third direction.

[0032] In some embodiments, after the molded lead-out is located outside the current transformer housing along the third direction, the following steps are further included: The pre-bent portion is bent relative to the main body portion, such that the pre-bent portion and the main body portion are arranged at a second included angle.

[0033] In some embodiments, a conductive element is connected to the transformer body before the transformer and the relay body are assembled to form a transformer relay module. When the relay body and the current transformer are moved closer to each other, the conductive element is inserted through the positioning hole of the current transformer.

[0034] One embodiment of the present invention has the following advantages or beneficial effects: The lead-out piece and relay provided in this embodiment are arranged at a first angle with the main body to form a clearance space, pre-reserving an installation gap to prevent the lead-out piece from colliding with adjacent components during assembly, thus avoiding deformation and positional displacement of the lead-out piece. Simultaneously, the clearance space can adapt to the contours of adjacent components and effectively avoid them, eliminating the need for further bending or modification of the main body and pre-bent portion. This simplifies the traditional two-stage bending process into a one-time bending, shortening the assembly time of the lead-out piece, improving assembly efficiency, and facilitating automated assembly.

[0035] The current transformer relay module and its installation method provided in this embodiment first bend the pre-bent portion relative to the main body to a first included angle, forming a clearance space between them. During subsequent assembly of the current transformer and relay body, this clearance space allows the current transformer to be avoided, completely preventing interference such as hard compression between the leads and the current transformer. Since the pre-bent portion is pre-bent to the first included angle before assembling the current transformer and relay, the orientation of the leads is consistent, ensuring the accuracy and consistency of the bending angle of the leads, and improving the overall structural stability and electrical connection reliability of the current transformer relay module.

[0036] By adopting this method of connecting the lead-out piece after bending the pre-bent part and finally assembling the current transformer, the installation difficulties caused by adjusting the posture of the lead-out piece after the current transformer and relay are installed in place can be avoided. The posture adjustment can be completed without disassembling the assembled current transformer, reducing the assembly difficulty and improving the assembly efficiency. Attached Figure Description

[0037] To better understand the present invention, reference may be made to the embodiments shown in the following drawings. Components in the drawings are not necessarily to scale, and related elements may be omitted to emphasize and clearly illustrate the technical features of the invention. Furthermore, related elements or components may have different arrangements as known in the art. Additionally, in the drawings, the same reference numerals denote the same or similar components in various figures. The above and other features and advantages of the present invention will become more apparent from a detailed description of exemplary embodiments thereof with reference to the accompanying drawings.

[0038] in: Figure 1 The diagram shown is a schematic representation of the lead-out sheet according to Embodiment 1 of the present invention. Figure 1 : Figure 2 What is shown is Figure 1 A magnified view of the area at point B; Figure 3 The diagram shown is a schematic diagram of the structure of the lead-out plate avoiding the transformer housing 1 according to Embodiment 1 of the present invention; Figure 4 The diagram shown is a schematic representation of the lead-out sheet according to Embodiment 1 of the present invention. Figure 2 : Figure 5 What is shown is Figure 4 A magnified view of a portion at point A; Figure 6 The diagram shown is a structural schematic of the mutual inductance relay module according to Embodiment 1 of the present invention. Figure 1 : Figure 7 The diagram shown is a structural schematic of the current transformer in the current transformer relay module according to Embodiment 1 of the present invention: Figure 8 The diagram shown is a structural schematic of the transformer housing in the mutual inductance relay module according to Embodiment 1 of the present invention. Figure 1 : Figure 9 The diagram shown is a structural schematic of the transformer housing in the mutual inductance relay module according to Embodiment 1 of the present invention. Figure 2 : Figure 10 What is shown is Figure 9 A magnified view of point C; Figure 11 The diagram shown is a schematic representation of the guide slope of the mutual inductance relay module according to Embodiment 1 of the present invention: Figure 12 The diagram shown is a structural schematic of the relay according to Embodiment 1 of the present invention: Figure 13 The diagram shown is a schematic representation of the conductive component in the relay of Embodiment 1 of the present invention. Figure 1 : Figure 14 The diagram shown is a schematic representation of the conductive component in the relay of Embodiment 1 of the present invention. Figure 2 : Figure 15 What is shown is Figure 14 A magnified view of the area at point D; Figure 16 The diagram shown is a structural schematic of the mutual inductance relay module according to Embodiment 1 of the present invention. Figure 2 : Figure 17 The diagram shown is a schematic diagram of the lead-out sheet according to Embodiment 2 of the present invention: Figure 18 The diagram shown is a structural schematic of the mutual inductance relay module according to Embodiment 2 of the present invention: Figure 19 The diagram shown is a structural schematic of the mutual inductance relay module according to Embodiment 3 of the present invention: Figure 20 The diagram shown is a structural schematic of the molded lead-out component in the mutual inductance relay module of Embodiment 3 of the present invention: Figure 21 The diagram shown is a structural schematic of the mutual inductance relay module according to Embodiment 4 of the present invention: Figure 22The diagram shown is a structural schematic of the mutual inductance relay module of Embodiment 4 of the present invention before the second bend: Figure 23 The diagram shown is a structural schematic of the mutual inductance relay module of Embodiment 5 of the present invention; Figure 24 The diagram shown is a schematic representation of the conductive components in the mutual inductance relay module of Embodiment Six of the present invention. Figure 1 ; Figure 25 The diagram shown is a schematic representation of the conductive components in the mutual inductance relay module of Embodiment Six of the present invention. Figure 2 ; Figure 26 What is shown is Figure 25 A magnified view of a section at point E.

[0039] The reference numerals in the attached figures are explained as follows: 100. Mutual inductance relay module; 10. Current transformer; 20. Relay; 1. Current transformer housing; 2. Coil assembly; 3. Relay body; 4. Lead-out piece; 5. Conductive component; 6. Molded lead-out piece; 7. Soldering area; 11. Connecting part; 12. Mounting part; 13. Spacing groove; 14. Cable groove; 121. Housing; 122. Positioning pin; 123. Guide slope; 124. Positioning hole; 1241. Insertion part; 1242. Receiving part; 125. Mounting groove; 21. Lead wire; 41. Main body; 411. Fixed section; 412. First intermediate section; 413. Second intermediate section; 42. Pre-bend; 43. Clearance space; 44. Clearance groove; 51. Conductive body; 511. Guiding surface; 52. Bump; 521. Curved surface; 61. Headquarters; 62. Bending section. Detailed Implementation

[0040] The technical solutions of the exemplary embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. 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.

[0041] In the description of this invention, unless otherwise expressly specified and limited, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance; the term "multiple" 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, references to "the / described" object or "an" object are also intended to indicate one of a possible plurality of such objects.

[0042] Unless otherwise specified or stated, the terms "connection," "fixed," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, an integral connection, an electrical connection, or a signal connection; "connection" can be a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0043] Furthermore, in the description of this invention, it should be understood that the directional terms such as "upper," "lower," "inner," and "outer" described in the exemplary embodiments of this invention are used to describe the angles shown in the accompanying drawings and should not be construed as limiting the exemplary embodiments of this invention. It should also be understood that, in the context of an element or feature being connected to another element (one or more) "upper," "lower," "inner," or "outer," it can be directly connected to another element (one or more) "upper," "lower," "inner," or "outer," or indirectly connected to another element (one or more) "upper," "lower," "inner," or "outer" through an intermediate element.

[0044] Exemplary embodiments will now be described more fully with reference to the accompanying drawings. However, these exemplary embodiments can be implemented in many forms and should not be construed as limited to the embodiments set forth herein; rather, they are provided so that the invention will be thorough and complete, and the concept of the exemplary embodiments will be fully conveyed to those skilled in the art. The same reference numerals in the drawings denote the same or similar structures, and therefore their detailed description will be omitted.

[0045] Example 1

[0046] This disclosure provides an lead-out piece 4, such as Figures 1-2 As shown, the lead-out piece 4 includes a body portion 41 and a pre-bent portion 42. The pre-bent portion 42 is connected to the body portion 41 and is set at a first angle to the body portion 41, so that a clearance space 43 is formed between the body portion 41 and the pre-bent portion 42. The clearance space 43 is used to avoid adjacent components.

[0047] For example, after the lead-out piece 4 is installed on the relay body, it needs to cooperate with adjacent components of other structures, such as... Figure 3As shown, adjacent components can be adjacent components of the current transformer housing 1 or other electrical components. In this embodiment, the current transformer housing 1 is used as an example.

[0048] For example, the first included angle formed between the pre-bent portion 42 and the main body portion 41 is a right angle, an obtuse angle, a straight angle, etc. In this embodiment, the first included angle is an obtuse angle. In some other embodiments, the first included angle can also be any angle between 0° and 360°.

[0049] The lead-out piece 4 provided in this embodiment has a pre-bent portion 42 arranged at a first angle to the main body portion 41, forming a clearance space 43. This pre-reserves an installation gap to prevent the lead-out piece 4 from colliding with adjacent components during assembly, thus avoiding deformation and positional displacement of the lead-out piece 4. Simultaneously, the clearance space 43 can adapt to the contours of adjacent components and effectively avoids them, eliminating the need for further bending or modification of the main body portion 41 and the pre-bent portion 42. This simplifies the traditional two-stage bending process into a one-time bending process, shortening the assembly time of the lead-out piece 4, improving assembly efficiency, and facilitating automated assembly.

[0050] In one embodiment, the body portion 41 and the pre-bent portion 42 are integrally formed. This configuration saves on the steps of individual part processing and assembly, thus reducing production costs.

[0051] In one embodiment, such as Figure 4 As shown, the main body 41 includes a fixed section 411, a first intermediate section 412 and a second intermediate section 413. The fixed section 411 is connected to the second intermediate section 413 through the first intermediate section 412. The end of the second intermediate section 413 away from the first intermediate section 412 is connected to the pre-bent section 42.

[0052] With this configuration, the fixed section 411, the first intermediate section 412, and the second intermediate section 413 together form the main body 41. Different section structures can adapt to the undulating shape of the relay body 3 surface, improving the installation fit and heat dissipation performance.

[0053] Specifically, the fixed section 411 and the first intermediate section 412 are arranged at a third angle, the first intermediate section 412 and the second intermediate section 413 are arranged at a fourth angle, the second intermediate section 413 and the pre-bent portion 42 are arranged at a first angle, and the clearance space 43 is located between the second intermediate section 413 and the pre-bent portion 42. Through the above design, the lead-out piece 4 forms a multi-angle structure, which can adapt to complex installation environments.

[0054] In one embodiment, such as Figures 4-5 As shown, a clearance groove 44 is provided at the connection position between the main body 41 and the pre-bent part 42, so that the pre-bent part 42 can be bent toward the main body 41.

[0055] Before the lead-out piece 4 is assembled with adjacent components, a relief groove 44 is provided on the lead-out piece 4. The relief groove 44 pre-releases the deformation space required for bending, allowing the lead-out piece 4 to be bent. The bent portion forms the pre-bent portion 42, and the unbent portion forms the body portion 41, thus achieving the pre-forming of the lead-out piece 4. During this process, the relief groove 44 ensures the smoothness of the bending action and prevents stress concentration from causing the lead-out piece 4 to break or deform.

[0056] This disclosure also provides a mutual inductance relay module 100, such as Figure 6 As shown, the mutual inductance relay module 100 includes a current transformer 10 and a relay 20. The current transformer 10 is connected to the relay 20. The lead-out piece 4 of the relay 20 passes through the current transformer 10. The clearance space 43 formed between the body part 41 and the pre-bent part 42 of the lead-out piece 4 can avoid adjacent components.

[0057] The current transformer 10 includes a current transformer housing 1, and adjacent components can be the current transformer housing 1. The current transformer housing 1 has at least one plane, which is parallel to the horizontal plane. A first direction and a third direction are two mutually perpendicular directions within the plane, and a second direction is perpendicular to the plane. That is, the first direction, the second direction, and the third direction are mutually perpendicular to each other. For ease of understanding, the first direction can also be referred to as the thickness direction of the current transformer housing 1, the second direction can also be referred to as the height direction of the current transformer housing 1, and the third direction can also be referred to as the length direction of the current transformer housing 1.

[0058] In one embodiment, such as Figures 6-7 As shown, the current transformer 10 also includes a coil assembly 2, and the current transformer housing 1 includes at least two mounting portions 12 arranged along a third direction, the mounting portions 12 being used to mount the coil assembly 2. The lead-out piece 4 is located between two adjacent mounting portions 12; and / or, the lead-out piece 4 is located on the outer side of the plurality of mounting portions 12 along a third direction.

[0059] For example, at least two mounting portions 12 of the transformer housing 1 independently accommodate the coil assembly 2, thereby achieving a partitioned arrangement of at least two coil assemblies 2, resulting in excellent electromagnetic isolation, avoiding phase-to-phase electromagnetic interference, and improving the electromagnetic isolation effect.

[0060] In one embodiment, such as Figure 7 As shown, the transformer housing 1 also includes a connecting part 11, and two adjacent mounting parts 12 are connected by the connecting part 11. An interval groove 13 is formed between the two adjacent mounting parts 12 and the connecting part 11, and the lead-out piece 4 passes through the interval groove 13.

[0061] For example, the enclosing space between two adjacent mounting parts 12 and connecting parts 11 forms a gap groove 13. The gap groove 13 provides a through channel for the lead piece 4 of the relay 20, eliminating the need for additional slots on the transformer housing 1, reducing modification costs, and achieving high structural integration, compact layout, and saving installation space.

[0062] The current transformer housing 1 provided in this embodiment has an interlayer groove 13 formed between two adjacent mounting portions 12 and connecting portions 11 and adopts an integral molding structure, which simplifies the processing steps of the current transformer housing 1, reduces production costs, and the interlayer groove 13 provides clearance space 43 for the lead-out piece 4, avoiding interference between the lead-out piece 4 and the current transformer housing 1 that could lead to bending and deformation. While reducing assembly difficulty and scrap rate, it can also improve the overall structural consistency and integration, which is beneficial to improving space utilization.

[0063] In one embodiment, the mounting part 12 and the connecting part 11 are integrally formed. This arrangement reduces the steps of individual part production and assembly, lowers production costs, and provides the overall structure with high strength and rigidity, making it less prone to deformation and cracking, thus improving structural stability.

[0064] In one embodiment, there are three mounting parts 12, which are arranged along a third direction and are used to install three coil assemblies 2 respectively.

[0065] For example, two connecting parts 11 are arranged along a third direction, and three mounting parts 12 and two connecting parts 11 are staggered. Adjacent mounting parts 12 are connected by connecting parts 11, and adjacent connecting parts 11 are connected by mounting parts 12. Three coil assemblies 2 are arranged along a third direction and correspondingly disposed in the three mounting parts 12. In this case, the current transformer 10 is a three-phase current transformer.

[0066] When the current transformer 10 is running, the three-phase circuits are set independently and isolated to avoid mutual interference between the electromagnetic signals of each phase. The three-phase coil assembly 2 independently induces large currents electromagnetically and converts them into small currents. At the same time, the three-phase circuits share the same current transformer housing 1, realizing integrated assembly, neat and compact layout, and improving space utilization.

[0067] There are three lead-out pieces 4. The three lead-out pieces 4 and the three mounting parts 12 are correspondingly arranged and arranged along the third direction. There is one lead-out piece 4 between each two adjacent mounting parts 12, and the other lead-out piece 4 is located on the outside of the multiple mounting parts 12 along the third direction.

[0068] Specifically, the three mounting parts 12 are arranged at intervals along a third direction, forming two spacer slots 13. The two spacer slots 13 and the two connecting parts 11 are correspondingly arranged. The two spacer slots 13 are used to pass through the two lead-out pieces 4 respectively. The two lead-out pieces 4 are respectively accommodated in the corresponding spacer slots 13. The two lead-out pieces 4 are isolated from each other to avoid the risk of contact, interference, or other risks between the two lead-out pieces 4, between the lead-out pieces 4 and the mounting parts 12, and between the lead-out pieces 4 and the coil assembly 2, thereby improving the insulation isolation effect.

[0069] In one embodiment, such as Figure 7 As shown, a wire groove 14 is also provided inside the transformer housing 1. The wire groove 14 is used to accommodate the coil lead 21, making it easy to store the lead 21. The wire groove 14 and the mounting part 12 are spaced apart. The wire groove 14 also serves to isolate the lead piece 4 and the coil assembly 2, avoiding the risk of contact between the high-voltage lead piece 4 and the low-voltage coil assembly 2.

[0070] In one embodiment, such as Figures 8-9 As shown, the mounting part 12 includes a housing 121 and a positioning post 122 disposed in the housing 121. A positioning hole 124 is disposed in the positioning post 122, and a mounting groove 125 is formed between the outer wall of the positioning post 122 and the inner wall of the housing 121.

[0071] For example, the housing 121 has a hollow structure with a cavity. The positioning post 122 is disposed in the cavity. The enclosing space between the outer wall of the positioning post 122 and the inner wall of the housing 121 is used as the mounting groove 125 to accommodate and install the coil assembly 2. The structure is compact and the layout is regular.

[0072] For example, the cross-section of the positioning hole 124 is in the shape of a straight line, a cross, etc. In this embodiment, the cross-section of the positioning hole 124 is in the shape of a cross.

[0073] For example, the positioning hole 124 is a through-hole structure, extending through both sides of the positioning post 122 along the first direction. The inner wall of the positioning post 122 contacts the conductive component 5, and the coil assembly 2 is arranged around the outer wall of the positioning post 122. The positioning post 122 also serves as an isolation device, separating the electromagnetic induction working area from the conductive assembly area and improving insulation safety. Simultaneously, the integrated positioning hole 124 on the positioning post 122 increases the length of the positioning hole 124 along the first direction, thereby increasing the contact area between the positioning hole 124 and the conductive component 5 and further improving connection stability.

[0074] When the conductive component 5 passes through the positioning hole 124, the position of the conductive component 5 relative to the positioning hole 124 needs to be adjusted multiple times, which affects the assembly efficiency.

[0075] Therefore, such as Figure 10As shown, along the axial direction of the positioning hole 124, at least one side of the positioning post 122 is provided with a guide slope 123, so that the conductive element 5 is guided into the positioning hole 124 through the guide slope 123.

[0076] For example, the axial direction of the positioning hole 124 is the direction in which the conductive element 5 is inserted into the positioning hole 124, and the axial direction of the positioning hole 124 is the length direction of the conductive element 5, that is, the axial direction of the positioning hole 124 is the same as the first direction.

[0077] With this configuration, the guide slope 123 is located on the end face of the positioning post 122 along the first direction, forming a natural and smooth assembly guide surface. When the conductive component 5 is inserted into the positioning hole 124, the guide slope 123 can guide the conductive component 5 to automatically align and smoothly enter the positioning hole 124, improving assembly smoothness, avoiding jamming, alignment difficulties, and repeated adjustments, simplifying assembly operation steps, shortening assembly time, and thus improving assembly production efficiency.

[0078] In one embodiment, such as Figure 10 As shown, the positioning hole 124 includes a plug-in portion 1241 and a receiving portion 1242. The inner wall of the plug-in portion 1241 and the outer wall of the conductive component 5 are in contact and fit together. The receiving portion 1242 is set at an angle to the plug-in portion 1241 and communicates with the plug-in portion 1241.

[0079] For example, the insertion part 1241 and the receiving part 1242 are rectangular holes, and the included angle between the insertion part 1241 and the receiving part 1242 is an acute angle or a right angle. For example, the insertion part 1241 and the receiving part 1242 are arranged vertically, and the positioning hole 124 is a cross hole structure.

[0080] With this configuration, the plug-in portion 1241 and the receiving portion 1242 achieve functional partitioning. The inner wall of the plug-in portion 1241 fits against the outer wall of the conductive component 5, and the receiving portion 1242 provides reserved space for the conductive component 5 to avoid structural interference.

[0081] In one embodiment, such as Figure 10 As shown, the guide slope 123 is arranged around the edge of the insertion part 1241.

[0082] Specifically, the guide slope 123 includes six segments, two of which are arranged along the short side of the insertion portion 1241 and located on both sides of the insertion portion 1241 along the third direction, and the other four segments are arranged along the long side of the insertion portion 1241 and located on both sides of the insertion portion 1241 along the second direction and on both sides of the receiving portion 1242 along the third direction.

[0083] With this configuration, the guide ramp 123 forms a ring-shaped guide structure around the insertion part 1241, allowing the conductive component 5 to automatically align and center itself from any angle during assembly, avoiding misalignment caused by unilateral guidance. Compared to a partial ramp structure, the ring-shaped guide ramp 123 can compensate for alignment deviations over a wider range, preventing the conductive component 5 from getting stuck or skewed during insertion, reducing assembly resistance, and further improving insertion smoothness and assembly efficiency.

[0084] In another embodiment, such as Figure 11 As shown, the guide slope 123 is provided on the inner wall of the insertion part 1241 and / or the inner wall of the receiving part 1242.

[0085] For example, the insertion portion 1241 is divided by the receiving portion 1242 to form two first grooves arranged along a third direction, and the openings of the two first grooves are directly opposite each other; the receiving portion 1242 is divided by the insertion portion 1241 to form two second grooves arranged along a second direction, and the openings of the two second grooves are directly opposite each other.

[0086] Each of the three walls of the first groove is provided with a guide slope 123, and each of the three walls of the second groove is provided with a guide slope 123. That is, the guide slope 123 has a total of twelve segments, which are connected end to end to form a ring-shaped closed structure. In the initial stage of insertion of the conductive component 5, it plays a role in pre-guiding and pre-centering, enabling the conductive component 5 to automatically align and center from any angle, reducing assembly resistance, and further improving the smoothness of insertion and assembly efficiency.

[0087] This disclosure also provides a relay 20, such as Figure 12 As shown, the relay 20 includes a relay body 3 and the aforementioned lead-out piece 4. The body portion 41 of the lead-out piece 4 is connected to the relay body 3, and current is input to the relay body 3 through the lead-out piece 4. The relay body 3 is used to control the current flow.

[0088] In one embodiment, such as Figure 12 As shown, the relay 20 also includes a conductive element 5, which is connected to the relay body 3 and spaced apart from the lead-out piece 4.

[0089] The conductive component 5 is led out from the relay body 3 and can be inserted into the positioning hole 124 of the current transformer 10. The coil assembly 2 can sense the large current on the primary side and convert it into a small current on the secondary side. Finally, it is led out to the back-end circuit through the lead wire, which is convenient for direct detection of the small current.

[0090] In one embodiment, such as Figure 12 As shown, lead-out piece 4 and conductive element 5 are located on one side of the relay body 3 and facing the transformer housing 1; and / or, conductive element 5 is located on one side of the relay body 3 and facing the transformer housing 1.

[0091] For example, the lead-out piece 4 and the conductive element 5 are both arranged on the same side of the relay body 3 facing the transformer housing 1, realizing a centralized lead-out layout on the same side and in the same direction.

[0092] This layout eliminates the need to reserve assembly and wiring space on both sides of the relay 20, reducing the installation space required for the connection and assembly of the relay 20 and the current transformer 10, reducing the overall space occupied by the current transformer relay module 100, improving space utilization, and meeting the miniaturization requirements of the current transformer relay module 100. Furthermore, the lead-out piece 4 passes through the spacer slot 13 of the current transformer housing 1, and the conductive element 5 passes through the positioning hole 124 of the current transformer housing 1. The lead-out piece 4 and the conductive element 5 have the same insertion direction. When assembling the current transformer 10 and the relay 20, the insertion and corresponding stroke of the lead-out piece 4 and the conductive element 5 are uniform, eliminating the need for multi-angle offset adjustments, reducing assembly difficulty, and improving assembly efficiency.

[0093] In one embodiment, such as Figures 13-15 As shown, the conductive component 5 includes a conductive body 51 and a protrusion 52. The conductive body 51 passes through the positioning hole 124 and is detachably connected to the positioning hole 124. The protrusion 52 is disposed on the conductive body 51, and an arc-shaped surface 521 is provided on the side of the protrusion 52 away from the conductive body 51. The arc-shaped surface 521 is used to abut against the inner wall of the positioning hole 124.

[0094] When the conductive body 51 passes through the positioning hole 124 of the current transformer 10, the arc-shaped surface 521 of the protrusion 52 makes reliable contact with the inner wall of the positioning hole 124. This is used to compensate for the dimensional deviation of the positioning hole 124, eliminate the fitting gap between the conductive body 51 and the positioning hole 124, avoid shaking after assembly, ensure the stability of the contact between the conductive component 5 and the current transformer 10, thereby improving the stability of the electrical connection, reducing the risk of contact resistance changes during operation, and improving the contact reliability under vibration conditions.

[0095] Since the positioning holes 124 produced and processed by different manufacturers may have certain deviations, when the conductive body 51 passes through different positioning holes 124, the arc surface 521 of the protrusion 52 can contact the inner wall of the positioning hole 124 at different positions. This is used to automatically correct the assembly offset and achieve adaptive fitting, thereby adapting to different positioning holes 124 with larger or smaller diameters or slightly eccentric hole positions, improving versatility and assembly adaptability.

[0096] Meanwhile, the arc-shaped surface 521 also serves as a guide, reducing the resistance of the conductive body 51 when it passes through the positioning hole 124, making insertion and removal smoother, thereby improving assembly convenience.

[0097] In one embodiment, the number of protrusions 52 is one, and the protrusion 52 is disposed on at least one side of the conductive body 51 along the second direction. For example, the protrusion 52 is disposed on the top surface of the conductive body 51 along the second direction, and the bottom surface of the conductive body 51 along the second direction is flush with the structure, so that the overall thickness of the area of ​​the conductive element 5 with the protrusion 52 is relatively thick, thereby improving the structural strength; or, the protrusion 52 is disposed on the top surface of the conductive body 51 along the second direction, and the bottom surface of the conductive body 51 along the second direction is provided with a groove corresponding to the protrusion 52, and the thickness of the protrusion 52 and the depth of the groove are the same along the second direction, so that the overall thickness of the conductive body 51 is the same at any position, without the need to add additional materials, thus saving production costs.

[0098] For example, there are multiple bumps 52, which are respectively disposed on the upper and lower sides of the conductive body 51 along the second direction, so that the bumps 52 located on both sides of the conductive body 51 along the second direction can contact the inner wall of the positioning hole 124, thereby further improving the contact stability and reliability.

[0099] For example, the projections of a plurality of protrusions 52 located on both sides of the conductive body 51 along the second direction at least partially overlap or do not overlap on the first reference plane, which is the plane containing the first direction and the third direction. That is, the plurality of protrusions 52 can be symmetrically or asymmetrically arranged relative to the conductive body 51.

[0100] This disclosure also provides a method for installing a mutual inductor relay module, used to install the aforementioned mutual inductor relay module 100. The method includes the following steps: The pre-bent portion 42 is bent relative to the main body portion 41, so that the pre-bent portion 42 and the main body portion 41 are arranged at a first angle to form the lead-out piece 4. The main body 41 of the lead-out piece 4 is connected to the relay body 3; The current transformer 10 and the relay body 3 are assembled to form a structure as shown below. Figure 16 The mutual inductance relay module 100 shown is used to avoid the mutual inductor 10 by forming a clearance space 43 between the main body 41 and the pre-bent part 42.

[0101] The current transformer relay module installation method provided in this embodiment first bends the pre-bent portion 42 relative to the main body portion 41 to a first included angle, forming a clearance space 43 between them. During subsequent assembly of the current transformer 10 and the relay body 3, this clearance space 43 allows the current transformer 10 to be avoided, completely preventing interference such as hard compression between the lead-out piece 4 and the current transformer 10. Since the pre-bent portion 42 is pre-bent to the first included angle before assembling the current transformer 10 and the relay 20, the orientation of the lead-out piece 4 is consistent, ensuring the accuracy and consistency of the bending angle of the lead-out piece 4, and improving the overall structural stability and electrical connection reliability of the current transformer relay module 100.

[0102] By adopting this method of connecting the lead-out piece 4 after bending the pre-bent part 42 and finally assembling the current transformer 10, the installation difficulties caused by adjusting the posture of the lead-out piece 4 after the current transformer 10 and relay 20 are installed can be avoided. The posture adjustment can be completed without disassembling the assembled current transformer 10, reducing the assembly difficulty and improving the assembly efficiency.

[0103] In one embodiment, such as Figure 16 As shown, assembling the current transformer 10 and the relay body 3 to form the current transformer relay module 100 includes the following steps: Move the relay body 3 and the current transformer 10 toward each other, and make the lead-out piece 4 pass between two adjacent mounting parts 12 in the current transformer 10; and / or, the lead-out piece 4 is located on the outside of the current transformer housing 1 in a third direction.

[0104] For example, there are three lead-out pieces 4. The three lead-out pieces 4 and the three mounting parts 12 are correspondingly arranged and arranged along the third direction. There is one lead-out piece 4 between each two adjacent mounting parts 12, and the other lead-out piece 4 is located on the outside of the plurality of mounting parts 12 along the third direction.

[0105] This localized approach fully utilizes the free space within the transformer housing 1, avoiding additional space occupation of the transformer relay module 100. This results in a more compact overall layout of the transformer relay module 100, improving space utilization and facilitating product miniaturization. Furthermore, when the relay 20 and transformer 10 are assembled towards each other, the lead-out piece 4 can be directly inserted along a preset path into the spacer slot 13 between two adjacent mounting portions 12 or into the outer side of the transformer housing 1, enabling a plug-in assembly process. This simplifies the assembly steps and improves assembly efficiency.

[0106] In one embodiment, such as Figure 16 As shown, when the relay body 3 and the current transformer 10 are moved closer to each other, the conductive element 5 is inserted through the positioning hole 124 of the current transformer 10.

[0107] With this configuration, during the insertion stroke of the relay body 3 and the current transformer 10, the conductive element 5 and the lead-out piece 4 are synchronously inserted along the same moving path, avoiding interference and misalignment problems caused by path differences during step assembly, improving the smoothness of assembly operations, and further improving assembly efficiency.

[0108] It should be noted that if the multiple mounting portions 12 provided in this embodiment are independent structures, the mounting portions 12 and the lead-out pieces 4 are installed one by one, and the lead-out pieces 4 are inserted through the gap groove 13 between two adjacent mounting portions 12 or located on the outside of the transformer housing 1, thus realizing the installation of the lead-out pieces 4. Although the prior art can also realize the mounting portions 12 and the lead-out pieces 4, the lead-out pieces 4 provided in this disclosure do not need to be expanded before being assembled with the mounting portions 12 and are reset after being assembled with the mounting portions 12. The lead-out pieces 4 omit the process of repeated expansion and reset, simplifying the assembly steps and improving assembly efficiency.

[0109] It should be noted that if the multiple mounting parts 12 provided in this embodiment are integrally formed, when the relay body 3 and the current transformer 10 approach each other, the lead-out piece 4 can pass through the gap groove 13 between two adjacent mounting parts 12 or be located on the outside of the current transformer housing 1, thus realizing the installation of the lead-out piece 4 while simultaneously achieving the integral installation process of the relay body 3 and the current transformer 10. Since the current transformer 10 is an integral structure, unlike the assembly principle of the separate installation of the mounting parts 12 in the prior art, the prior art cannot achieve the process of expanding the lead-out piece 4 before assembling the separate mounting parts 12 and resetting the lead-out piece 4 after assembly with the mounting parts 12.

[0110] Example 2

[0111] This embodiment is similar to Embodiment 1, except that the final structure of the lead-out piece 4 and the assembly process of the current transformer 10 and the relay 20 are different.

[0112] After the lead-out piece 4 is installed relative to the adjacent components, it needs to be connected to other external components, such as terminals. Due to the limited installation space around the different external components, if the lead-out piece 4 is a completely fixed structure, it will affect the ease of connecting the lead-out piece 4 to other external components.

[0113] Therefore, the lead-out piece 4 provided in the embodiments of this disclosure, such as Figure 17 As shown, the pre-bent portion 42 is configured to be able to adjust the included angle relative to the main body portion 41, so that the pre-bent portion 42 and the main body portion 41 are set at a second included angle.

[0114] With this configuration, even after the lead-out piece 4 is installed relative to the relay body 3, the pre-bent portion 42 can still be bent relative to the body portion 41. By adjusting the included angle between the pre-bent portion 42 and the body portion 41, i.e., forming a second included angle between the pre-bent portion 42 and the body portion 41, the lead-out piece 4 can flexibly adapt to the contours of different adjacent components, installation space, and the position of external components, making it easier for the lead-out piece 4 to connect with other external components. For example, the connection surface of the pre-bent portion 42 and other external components is flush, which is beneficial for the lead-out piece 4 to contact and connect with other external components. It can be compatible with various working conditions without the need for additional customization of different models of lead-out pieces 4, thus improving the versatility and adaptability of the lead-out piece 4.

[0115] In one embodiment, the second included angle is smaller than the first included angle. This configuration ensures that the pre-bent portion 42 maintains structural stability after avoiding the transformer housing 1, preventing fatigue failure due to excessive bending.

[0116] For example, the second included angle formed between the pre-bent portion 42 and the main body portion 41 is a right angle, an acute angle, etc. In this embodiment, the first included angle is a right angle. At this time, the pre-bent portion 42 is parallel to the horizontal plane, which is convenient for welding with external components.

[0117] After the lead-out piece 4 and adjacent components are assembled, the clearance groove 44 provides a larger bending stroke and angle adjustment range for the pre-bending part 42, which facilitates further bending of the pre-bending part 42 relative to the main body part 41, improves the flexibility of the bending angle, and can adapt to the installation needs of different installation scenarios.

[0118] For example, such as Figure 18 As shown, there are three lead-out pieces 4. The three lead-out pieces 4 and the three mounting parts 12 are correspondingly arranged and arranged along the third direction. There is one lead-out piece 4 between each two adjacent mounting parts 12, and the other lead-out piece 4 is located on the outside of the multiple mounting parts 12 along the third direction.

[0119] This disclosure also provides a method for installing a mutual inductor relay module, used to install the aforementioned mutual inductor relay module 100. The method for installing the mutual inductor relay module includes the following steps: The pre-bent portion 42 is bent relative to the main body portion 41, so that the pre-bent portion 42 and the main body portion 41 are arranged at a first angle to form the lead-out piece 4. The main body 41 of the lead-out piece 4 is connected to the relay body 3; The current transformer 10 and the relay body 3 are assembled to form a current transformer relay module 100, and the clearance space 43 formed between the body part 41 and the pre-bent part 42 avoids the current transformer 10.

[0120] The current transformer relay module installation method also provided in this disclosure involves first bending the pre-bent portion 42 relative to the main body portion 41 to a first included angle, forming a clearance space 43 between them. During subsequent assembly of the current transformer 10 and the relay body 3, this clearance space 43 allows the current transformer 10 to be avoided, completely preventing interference such as hard compression between the lead-out piece 4 and the current transformer 10. Since the pre-bent portion 42 has been pre-bent to the first included angle before assembling the current transformer 10 and the relay 20, the orientation of the lead-out piece 4 is consistent, ensuring the accuracy and consistency of the bending angle of the lead-out piece 4.

[0121] In one embodiment, after the lead-out piece 4 is inserted between two adjacent mounting portions 12 in the current transformer 10, the following step is further included: The pre-bent portion 42 is bent relative to the main body portion 41, so that the pre-bent portion 42 and the main body portion 41 are arranged at a second included angle.

[0122] In this manner, before the current transformer 10 and the relay body 3 are assembled, the lead-out piece 4, with a relatively small first included angle, can smoothly pass through the gap between two adjacent mounting parts 12, reducing the risk of spatial obstruction and interference. After the current transformer 10 and the relay body 3 are assembled, the bending angle of the pre-bent portion 42 in the lead-out piece 4 is adjusted to form a shape as shown in the image. Figure 18 The mutual inductance relay module 100 shown avoids the situation where the lead-out piece 4 is difficult to pass through the gap groove 13 between two adjacent mounting parts 12 due to large-angle bending, which would cause structural interference and rigid collision, thus improving assembly efficiency.

[0123] Meanwhile, after the mutual inductance relay module 100 is assembled, the final form of the lead-out piece 4 is that the pre-bent part 42 and the main body part 41 are set at a second included angle, which improves the flexibility of the bending angle and can adapt to the installation requirements of different installation scenarios.

[0124] Example 3

[0125] This embodiment is similar to Embodiment 1, except that the specific structure of the relay 20 and the structure and installation method of the mutual inductance relay module 100 are different.

[0126] like Figure 19 As shown, the relay 20 provided in this embodiment of the present disclosure also includes a molded lead-out member 6. The molded lead-out piece 4 is connected to the relay body 3. There are two lead-out pieces 4. The two lead-out pieces 4 and one molded lead-out piece 4 are correspondingly arranged with three mounting parts 12 and arranged along the third direction. There is a lead-out piece 4 between each two adjacent mounting parts 12. The molded lead-out piece 4 is located on the outside of the plurality of mounting parts 12 along the third direction.

[0127] In this manner, the lead-out piece 4 is embedded in the spacer slot 13 between two adjacent mounting portions 12, making full use of the remaining intermediate space. The molded lead-out piece 4 is located on the outside of the mounting portion 12, arranged in layers on the inner and outer sides, which is conducive to the miniaturized integrated design of the product and adapts to the narrow installation space inside the meter. At the same time, since the lead-out piece 4 and the molded lead-out piece 6 have different structures, they also serve as an identifier, reducing the chance of incorrect installation. For example, the molded lead-out piece 6 corresponds to the A-phase mounting portion 12 of the current transformer 10, and the two lead-out pieces 4 correspond to the B-phase mounting portion 12 and the C-phase mounting portion 12 of the current transformer 10, respectively.

[0128] In one embodiment, such as Figure 20 As shown, the molded lead-out part 6 includes a main part 61 and a bent part 62. The main part 61 is connected to the relay 20, and the bent part 62 is connected to the end of the main part 61 away from the relay 20. The bent part 62 and the main part 61 are arranged at a second angle.

[0129] Since the molded lead-out piece 6 is located outside the transformer housing 1, even if the second included angle between the main part 61 and the bent part 62 in the molded lead-out piece 4 is relatively large, it will not interfere with the transformer 10. At the same time, the molded lead-out piece 4 can utilize existing structures, saving production costs.

[0130] In one embodiment, the main body 61 and the bent portion 62 are integrally formed. This arrangement saves on the separate processing and assembly of parts, reducing production costs.

[0131] This disclosure also provides a method for installing a mutual inductor relay module, used to install the aforementioned mutual inductor relay module 100. The method for installing the mutual inductor relay module includes the following steps: The pre-bent portion 42 is bent relative to the main body portion 41, so that the pre-bent portion 42 and the main body portion 41 are arranged at a first angle to form the lead-out piece 4. The main body 41 of the lead-out piece 4 is connected to the relay body 3; The current transformer 10 and the relay body 3 are assembled to form a current transformer relay module 100, and the clearance space 43 formed between the body part 41 and the pre-bent part 42 avoids the current transformer 10.

[0132] The current transformer relay module installation method also provided in this disclosure involves first bending the pre-bent portion 42 relative to the main body portion 41 to a first included angle, forming a clearance space 43 between them. During subsequent assembly of the current transformer 10 and the relay body 3, this clearance space 43 allows the current transformer 10 to be avoided, completely preventing interference such as hard compression between the lead-out piece 4 and the current transformer 10. Since the pre-bent portion 42 has been pre-bent to the first included angle before assembling the current transformer 10 and the relay 20, the orientation of the lead-out piece 4 is consistent, ensuring the accuracy and consistency of the bending angle of the lead-out piece 4.

[0133] In one embodiment, before assembling the current transformer 10 and the relay body 3 to form the current transformer relay module 100, the following steps are also included: The bending portion 62 is bent relative to the main portion 61, so that the bending portion 62 and the main portion 61 are set at a second included angle to form the molded lead-out part 6; The molded lead-out 6 and the lead-out piece 4 are arranged along a third direction, and the main body 61 of the molded lead-out 6 is connected to the relay body 3.

[0134] In this method, the bending portion 62 is first bent relative to the main body 61 at a second included angle to form the molded lead-out part 6. The molded lead-out piece 4 is pre-bent, avoiding assembly difficulties caused by limited installation space when assembling the current transformer 10 and the relay body 3. At the same time, the molded lead-out part 6 and the lead-out piece 4 are uniformly arranged and fixed to the relay body 3 along the third direction in advance, and pre-calibrated and aligned. When assembling with the current transformer 10, there is no need to adjust the alignment one by one, improving the overall assembly efficiency.

[0135] In one embodiment, assembling the current transformer 10 and the relay body 3 to form a current transformer relay module 100 includes the following steps: Move the relay body 3 and the current transformer 10 closer to each other, and make the lead 4 pass between two adjacent mounting parts 12 in the current transformer 10, with the shaped lead 6 located on the outside of the current transformer housing 1 in a third direction.

[0136] In this way, the installation and positioning of the lead-out piece 4 and the molded lead-out piece 6 can be completed simultaneously during the process of the relay body 3 and the current transformer 10 moving towards each other. The two assembly steps are completed in parallel, simplifying the operation steps and further improving the assembly efficiency.

[0137] Example 4

[0138] Although the mutual inductance relay module 100 disclosed in this embodiment and Embodiment 2 have similar final structures, their structures differ from those of the mutual inductance relay module 100 in Embodiment 2, and they are manufactured using different installation methods. The mutual inductance relay module 100 disclosed in this embodiment and Embodiment 3 have the same initial structure, the difference being that they are further improved based on Embodiment 3.

[0139] like Figure 21 As shown, the current transformer relay module 100 provided in this embodiment includes a molded lead-out member 6 and two lead-out pieces 4. The molded lead-out member 6 and the two lead-out pieces 4 are arranged along a third direction. The molded lead-out member 6 is located on the outside of the current transformer housing 1 along the third direction. The two lead-out pieces 4 are respectively inserted into two spacer slots 13, and the pre-bent portion 42 of the lead-out piece 4 and the body portion 41 are arranged at a second included angle.

[0140] The current transformer relay module installation method provided in this embodiment forms, after the molded lead-out 6 is located on the outer side of the current transformer housing 1 along a third direction, as shown in the figure. Figure 22 Following the structure shown, the following steps are also included: The pre-bent portion 42 is bent relative to the main body portion 41, such that the pre-bent portion 42 and the main body portion 41 are arranged at a second included angle, forming a shape as shown. Figure 21 The structure shown.

[0141] In this manner, before the current transformer 10 and the relay body 3 are assembled, the lead-out piece 4 is positioned at a relatively small included angle (e.g., ...). Figure 22 As shown), it can smoothly pass through the gap 13 between two adjacent mounting parts 12, reducing the risk of space obstruction and interference. After the current transformer 10 and the relay body 3 are assembled, the bending angle of the pre-bent part 42 in the lead-out piece 4 is adjusted (e.g., Figure 21 As shown, this avoids the situation where the lead-out piece 4 is difficult to pass through the gap groove 13 between two adjacent mounting parts 12 due to large-angle bending, which would cause structural interference and rigid collision, and improves assembly efficiency.

[0142] Meanwhile, after the mutual inductance relay module 100 is assembled, the final form of the lead-out piece 4 is that the pre-bent part 42 and the main body part 41 are set at a second included angle, which improves the flexibility of the bending angle and can adapt to the installation requirements of different installation scenarios.

[0143] Example 5

[0144] The structure of the mutual inductance relay module 100 disclosed in this embodiment is similar to that in Embodiments 2 and 4, except for the specific structure of the lead-out piece 4 and the molded lead-out piece 6.

[0145] The mutual inductance relay module 100 structure provided in this embodiment of the present disclosure is as follows: Figure 23 As shown, at least one of the pre-bent portion 42, the bent portion 62, and the conductive component 5 is provided with a welding area 7 to facilitate welding with other external components.

[0146] Example 6

[0147] This embodiment is similar to Embodiment 1, except that the detailed structure of the conductive element 5 is different.

[0148] The conductive element 5 provided in the embodiments of this disclosure, such as Figures 24-26 As shown, bumps 52 are respectively disposed on at least one side of the conductive body 51 along a third direction.

[0149] For example, there are multiple bumps 52, which are respectively disposed on the left and right sides of the conductive body 51 along the third direction, so that the bumps 52 located on both sides of the conductive body 51 along the third direction can contact the inner wall of the positioning hole 124, thereby further improving the contact stability and reliability.

[0150] For example, the projections of a plurality of protrusions 52 located on both sides of the conductive body 51 along a third direction at least partially overlap or do not overlap on the second reference plane, where the first reference plane is the plane containing the first and second directions. That is, the plurality of protrusions 52 can be arranged symmetrically or asymmetrically with respect to the conductive body 51.

[0151] In some other embodiments, bumps 52 are respectively disposed on at least one side of the conductive body 51 along the first direction.

[0152] In one embodiment, such as Figures 24-25 As shown, a guide surface 511 is provided on the side of the conductive body 51 along the first direction and away from the body of the relay 20. The guide surface 511 is located on at least one side of the conductive body 51 along the third direction.

[0153] For example, the guide surface 511 is an angled surface located at the end of the conductive body 51. When the conductive body 51 is inserted into the positioning hole 124, the guide surface 511 plays a guiding role, making it easier for the conductive body 51 to be aligned and installed into the positioning hole 124, thereby achieving the effect of positioning and guiding.

[0154] It should be noted that the embodiments of the present invention shown in the drawings and described in this specification are merely one example employing the principles of the invention. Those skilled in the art will clearly understand that the principles of the invention are not limited to any details or components of the apparatus shown in the drawings or described in the specification.

[0155] It should be understood that the application of this invention is not limited to the detailed structure and arrangement of the components presented in this specification. The invention can have other embodiments and can be implemented and performed in various ways. The foregoing variations and modifications fall within the scope of this invention. It should be understood that the invention disclosed and defined in this specification extends to all alternative combinations of two or more individual features mentioned or apparent in the text and / or drawings. All these different combinations constitute multiple alternative aspects of the invention. The embodiments described in this specification illustrate the best known mode for carrying out the invention and will enable those skilled in the art to utilize the invention.

[0156] Other embodiments of the invention will readily occur to those skilled in the art upon consideration of the specification and practice of the invention disclosed herein. This invention is intended to cover any variations, uses, or adaptations of the invention that follow the general principles of the invention and include common knowledge or customary techniques in the art not disclosed herein. The specification and exemplary embodiments are to be considered as exemplary only, and the true scope and spirit of the invention are indicated by the appended claims.

[0157] It should be understood that the present invention is not limited to the precise structure described above and shown in the accompanying drawings, and various modifications and changes can be made without departing from its scope. The scope of protection of the present invention is limited only by the appended claims.

Claims

1. A lead-out piece, characterized in that, include: Body part; The pre-bent portion is connected to the main body and is set at a first angle to the main body, so that a clearance space is formed between the main body and the pre-bent portion, and the clearance space is used to avoid adjacent components.

2. The lead-out sheet according to claim 1, characterized in that, The pre-bent portion is configured to be able to adjust the included angle relative to the main body portion, such that the pre-bent portion and the main body portion are set at a second included angle.

3. The lead-out sheet according to claim 2, characterized in that, The second included angle is smaller than the first included angle.

4. The lead-out sheet according to claim 1, characterized in that, A clearance groove is provided at the connection position between the main body and the pre-bent part, so that the pre-bent part can be bent toward the main body.

5. The lead-out sheet according to claim 1, characterized in that, The main body and the pre-bent part are integrally formed.

6. The lead-out sheet according to any one of claims 1-5, characterized in that, The main body includes a fixed section, a first intermediate section and a second intermediate section. The fixed section is connected to the second intermediate section through the first intermediate section, and the end of the second intermediate section away from the first intermediate section is connected to the pre-bent section. The fixed section and the first intermediate section are arranged at a third angle, the first intermediate section and the second intermediate section are arranged at a fourth angle, the second intermediate section and the pre-bent section are arranged at the first angle, and the clearance space is located between the second intermediate section and the pre-bent section.

7. The lead-out sheet according to any one of claims 1-5, characterized in that, The pre-bent section is provided with a welding area.

8. A relay, characterized in that, It includes a relay body and a lead-out piece as described in any one of claims 1 to 7, wherein the body portion of the lead-out piece is connected to the relay body.

9. A mutual inductance relay module, characterized in that, The device includes a current transformer and a relay as described in claim 8, wherein the current transformer is connected to the relay, the lead-out portion of the relay passes through the current transformer, and the clearance space formed between the body portion and the pre-bent portion of the lead-out portion is capable of avoiding the current transformer.

10. The mutual inductance relay module according to claim 9, characterized in that, The current transformer includes a current transformer housing and a coil assembly. The current transformer housing includes at least two mounting portions arranged along a third direction, the mounting portions being used to mount the coil assembly. Wherein, the lead-out piece is located between two adjacent mounting portions; and / or, the lead-out piece is located on the outer side of the plurality of mounting portions along the third direction.

11. The mutual inductance relay module according to claim 10, characterized in that, The transformer housing also includes a connecting portion, and two adjacent mounting portions are connected by the connecting portion. An interval groove is formed between two adjacent mounting portions and the connecting portion, and the lead-out piece passes through the interval groove.

12. The mutual inductance relay module according to claim 11, characterized in that, The mounting part and the connecting part are integrally formed.

13. The mutual inductance relay module according to claim 10, characterized in that, The number of mounting parts is three, and the three mounting parts are arranged along a third direction. The three mounting parts are used to install the three coil assemblies respectively. The number of lead-out pieces is three. The three lead-out pieces and the three mounting parts are correspondingly arranged and arranged along the third direction. There is one lead-out piece between each two adjacent mounting parts, and the other lead-out piece is located on the outside of the plurality of mounting parts along the third direction.

14. The mutual inductance relay module according to claim 10, characterized in that, The number of mounting parts is three, and the three mounting parts are arranged along a third direction. The three mounting parts are used to install the three coil assemblies respectively. The mutual inductance relay module also includes a molded lead-out piece. The number of the lead-out pieces is two. The two lead-out pieces, one molded lead-out piece, and three mounting parts are correspondingly arranged and arranged along the third direction. There is one lead-out piece between each two adjacent mounting parts. The molded lead-out piece is located on the outside of the plurality of mounting parts along the third direction.

15. The mutual inductance relay module according to claim 14, characterized in that, The molded lead-out component includes: This part is connected to the relay; A bent portion is connected to the end of the main body away from the relay, and the bent portion is set at a second included angle with the main body.

16. The mutual inductance relay module according to claim 15, characterized in that, The main body and the bending part are integrally formed structures.

17. The mutual inductance relay module according to claim 10, characterized in that, The mounting part is provided with a mounting groove and a positioning hole, the mounting groove is arranged around the positioning hole, and the coil assembly is disposed in the mounting groove; The relay also includes a conductive element, which is connected to the relay body and spaced apart from the lead-out piece, and the conductive element passes through the positioning hole.

18. The mutual inductance relay module according to claim 17, characterized in that, The lead-out piece is located on the side of the relay body facing the transformer housing; And / or, the conductive element is located on the side of the relay body facing the transformer housing.

19. The mutual inductance relay module according to claim 17, characterized in that, The conductive element includes: A conductive body is provided through the positioning hole and is detachably connected to the positioning hole; A protrusion is provided on the conductive body, and an arc-shaped surface is provided on the side of the protrusion away from the conductive body. The arc-shaped surface is used to abut against the inner wall of the positioning hole.

20. The mutual inductance relay module according to claim 19, characterized in that, The bump is disposed on at least one side of the conductive body along the first direction; And / or, the bump is disposed on at least one side of the conductive body along the second direction; And / or, the bump is disposed on at least one side of the conductive body along a third direction; Wherein, the first direction is the length direction of the conductive body, the second direction is the thickness direction of the conductive body, and the third direction is the width direction of the conductive body, and the first direction, the second direction, and the third direction are perpendicular to each other.

21. The mutual inductance relay module according to claim 19, characterized in that, The conductive body has a guide surface on the side along the first direction and away from the relay body, and the guide surface is located on at least one side of the conductive body along the third direction. Wherein, the first direction is the length direction of the conductive body, the third direction is the width direction of the conductive body, and the first direction and the third direction are perpendicular to each other.

22. The mutual inductance relay module according to claim 17, characterized in that, The mounting part includes a housing and a positioning post disposed within the housing. The mounting groove is formed between the outer wall of the positioning post and the inner wall of the housing, and the positioning hole is disposed in the positioning post. The positioning post is provided with a guide slope, which guides the conductive component into the positioning hole.

23. The mutual inductance relay module according to claim 22, characterized in that, The positioning hole includes: The insertion part has its inner wall in contact with the outer wall of the conductive element. The receiving portion is arranged at an angle to the insertion portion and communicates with the insertion portion; Wherein, the guide slope is provided around the edge of the insertion part; or, the guide slope is provided on the inner wall of the insertion part and / or the inner wall of the receiving part.

24. A method for installing a mutual inductance relay module, characterized in that, For installing the mutual inductor relay module according to any one of claims 9-23, the mutual inductor relay module installation method includes the following steps: The pre-bent portion is bent relative to the main body portion, such that the pre-bent portion and the main body portion are arranged at a first included angle to form a lead-out piece; The main body portion of the lead-out piece is connected to the relay body; The current transformer and the relay body are assembled to form a current transformer relay module, and the clearance space formed between the body part and the pre-bent part avoids the current transformer.

25. The installation method of the mutual inductance relay module according to claim 24, characterized in that, The current transformer includes a current transformer housing and a coil assembly. The current transformer housing includes at least two mounting portions arranged along a third direction, the mounting portions being used to mount the coil assembly. Assembling the current transformer and the relay body to form a current transformer relay module includes the following steps: The relay body and the current transformer are moved closer to each other, and the lead-out piece passes between two adjacent mounting portions in the current transformer; and / or, the lead-out piece is located on the outside of the current transformer housing along the third direction.

26. The installation method of the mutual inductance relay module according to claim 25, characterized in that, After the lead-out piece passes between two adjacent mounting portions in the current transformer, the following step is further included: The pre-bent portion is bent relative to the main body portion, such that the pre-bent portion and the main body portion are arranged at a second included angle.

27. The installation method of the mutual inductance relay module according to claim 24, characterized in that, Before assembling the current transformer and the relay body to form a current transformer relay module, the following steps are also included: The bent portion is bent relative to the main portion, such that the bent portion and the main portion are arranged at a second included angle to form a molded lead-out part; The molded lead and the lead piece are arranged along a third direction, and the main body of the molded lead is connected to the relay body.

28. The installation method of the mutual inductance relay module according to claim 27, characterized in that, The current transformer includes a current transformer housing and a coil assembly. The current transformer housing includes at least two mounting portions arranged along a third direction, the mounting portions being used to mount the coil assembly. The assembly of the current transformer and the relay body to form a current transformer relay module includes the following steps: The relay body and the current transformer are moved closer to each other, and the lead-out piece passes between two adjacent mounting portions in the current transformer, with the shaped lead-out piece located on the outside of the current transformer housing along the third direction.

29. The installation method of the mutual inductance relay module according to claim 28, characterized in that, After the molded lead-out is located on the outside of the current transformer housing along the third direction, the following steps are also included: The pre-bent portion is bent relative to the main body portion, such that the pre-bent portion and the main body portion are arranged at a second included angle.

30. The installation method of the mutual inductance relay module according to claim 25, characterized in that, Before assembling the current transformer and the relay body to form a current transformer relay module, the conductive element is connected to the current transformer body; When the relay body and the current transformer are moved closer to each other, the conductive element is inserted through the positioning hole of the current transformer.

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