Mutual inductor module structure and intelligent electrical switch

Abstract

The utility model discloses a mutual inductor module structure and an intelligent electrical switch, and relates to the electric leakage mutual inductor technology field, the mutual inductor module structure comprises a mutual inductor, the mutual inductor comprises a body, the body is provided with a first side wall and a second side wall, and the first side wall and the second side wall are opposite to each other. The body is provided with a mounting hole penetrating through the first side wall and the second side wall; the first copper bar piece comprises an assembling part, one end of the assembling part is convexly provided with a mounting part, and the assembling part is inserted into the mounting hole from the second side wall, so that the mounting part is exposed out of the first side wall; the technical scheme provided by the utility model has the technical effects that the first copper bar piece is inserted into the mounting hole and is connected with the body into a whole, so that the body and the first copper bar piece are modularized, the mutual inductor can be conveniently mounted in the alternating current contactor, and the production efficiency of the alternating current contactor is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of leakage transformers, in particular to a transformer module structure and an intelligent electrical switch. Background Art

[0002] The leakage transformer is a detection element used to detect leakage in the circuit. It is mainly used to detect the residual current value in the main circuit due to grounding faults such as electric shock and leakage. When the detected residual current value is greater than the threshold set by the leakage transformer, the leakage transformer converts the residual current of the primary circuit into the output voltage of the secondary circuit. After the control system receives this abnormal voltage, it controls the contactor to disconnect, so as to achieve the purpose of protecting the circuit safety.

[0003] However, due to the size and structural characteristics of the leakage transformer, as well as the circuit connection between the leakage transformer and the AC contactor, the leakage transformer is not convenient to install inside the AC contactor, and it is not convenient to disassemble the leakage transformer inside the AC contactor, thereby affecting the production efficiency of the AC contactor and the subsequent maintenance cost of the AC contactor. Utility Model Content

[0004] The main purpose of the utility model is to provide a transformer module structure and an intelligent electrical switch, aiming to facilitate the disassembly and assembly of the transformer in an AC contactor.

[0005] To achieve the above-mentioned object, the transformer module structure proposed in the utility model includes a transformer, wherein the transformer includes a body, the body has a first side wall and a second side wall opposite to each other, and the body is provided with a mounting hole penetrating the first side wall and the second side wall;

[0006] The first copper bar piece includes an assembly part, one end of which is protruding with a mounting part, and the assembly part is inserted into the mounting hole from the second side wall so that the mounting part is exposed on the first side wall.

[0007] In one embodiment, the main body includes a bottom shell and an insulating member arranged on the bottom shell, the side of the insulating member facing away from the bottom shell forms the first side wall, the side of the bottom shell facing away from the insulating member forms the second side wall, and the mounting hole passes through the insulating member and the bottom shell.

[0008] In one embodiment, the first copper busbar further includes a connecting arm disposed at one end of the assembly portion away from the mounting portion, the connecting arm being bent relative to the assembly portion, and when the assembly portion and the mounting hole are plugged into place, the connecting arm abuts against the second side wall.

[0009] In one embodiment, the first copper bar is provided in plurality, the mounting holes are provided in plurality, the plurality of mounting holes are arranged at intervals on the body, and the plurality of first copper bar are inserted into the plurality of mounting holes one by one.

[0010] In one embodiment, a partition rib is protruding from the first side wall, and the partition rib divides the first side wall into a plurality of installation areas separated from each other, and the plurality of installation holes are arranged one-to-one in the plurality of installation areas.

[0011] In one embodiment, the separation rib includes a first convex rib and a second convex rib arranged crosswise, and two adjacent installation areas are separated by the first convex rib or the second convex rib.

[0012] In one embodiment, the mutual inductor further includes an upper cover, which is detachably connected to the bottom shell, and the upper cover and the bottom shell are combined to form a receiving cavity for receiving the insulating member, and the upper cover is provided with a through hole for exposing the first side wall.

[0013] In one embodiment, the transformer module structure further includes a magnetic core assembly, wherein the magnetic core assembly includes a magnetic core and a shielding ring, wherein the magnetic core is sleeved on the outside of the insulating member, and the shielding ring is wrapped around the outer circumference of the magnetic core.

[0014] In one embodiment, the transformer module structure further includes a second copper bar, one end of the second copper bar is provided with a connecting portion, and the connecting portion is connected to the mounting portion;

[0015] And / or, the assembly portion is interference fit with the mounting hole.

[0016] The utility model also provides an intelligent electrical switch, comprising the transformer module structure as described in any of the above embodiments.

[0017] The technical solution of the utility model adopts a first copper bar component that is inserted into the mounting hole and connected to the main body as a whole, thereby modularizing the main body and the first copper bar component, thereby facilitating the installation of the mutual inductor inside the AC contactor, or facilitating the disassembly and overall replacement of the mutual inductor inside the AC contactor, thereby improving the production efficiency of the AC contactor and reducing the subsequent maintenance cost of the AC contactor; at the same time, the mounting portion is exposed on the first side wall, which can facilitate the installation and connection of other copper bar components with the first copper bar component. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying creative work.

[0019] Figure 1 A schematic diagram of a structure of a transformer module structure according to an embodiment of the present invention;

[0020] Figure 2 An exploded view of the structure of a transformer module structure according to an embodiment of the present invention;

[0021] Figure 3 A bottom view of another embodiment of the transformer module structure provided by the utility model;

[0022] Figure 4 A schematic diagram of the structure of an upper cover, a bottom shell, an insulating member and a first copper bar in an embodiment of a transformer module structure provided by the utility model;

[0023] Figure 5 This is an exploded view of the structure of the upper cover, bottom shell, insulating member and magnetic core assembly in one embodiment of the transformer module structure provided by the utility model.

[0024] Description of Figure Numbers:

[0025] 1. Main body; 11. First side wall; 12. Second side wall; 13. Mounting hole; 14. Bottom shell; 141. Insulating member; 15. Separating rib; 151. First convex rib; 152. Second convex rib; 16. Mounting area; 2. First copper bar; 21. Assembly portion; 211. Mounting portion; 22. Connecting arm; 3. Upper cover; 31. Through hole; 4. Magnetic core assembly; 41. Magnetic core; 42. Shielding ring; 5. Second copper bar; 51. Connecting portion.

[0026] The realization of the purpose, functional features and advantages of the utility model will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0027] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0028] It should be noted that if the embodiments of the present invention involve directional indications (such as up, down, left, right, front, back...), the directional indications are only used to explain the relative position relationship, movement status, etc. between the components in a certain specific posture. If the specific posture changes, the directional indications will also change accordingly.

[0029] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the utility model, the descriptions of "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of technical features indicated. Therefore, the features limited to "first" and "second" may explicitly or implicitly include at least one of the features. In addition, if "and / or" or "and / or" appears in the full text, its meaning includes three parallel solutions. Taking "A and / or B" as an example, it includes solution A, solution B, or solutions that satisfy both A and B. In addition, the technical solutions between the various embodiments can be combined with each other, but it must be based on the ability of ordinary technicians in this field to implement. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such combination of technical solutions does not exist and is not within the scope of protection required by the utility model.

[0030] The leakage transformer is a detection element used to detect leakage in the circuit. It is mainly used to detect the residual current value in the main circuit due to grounding faults such as electric shock and leakage. When the detected residual current value is greater than the threshold set by the leakage transformer, the leakage transformer converts the residual current of the primary circuit into the output voltage of the secondary circuit. After the control system receives this abnormal voltage, it controls the contactor to disconnect, so as to achieve the purpose of protecting the circuit safety.

[0031] However, due to the size and structural characteristics of the leakage transformer, as well as the circuit connection between the leakage transformer and the AC contactor, the leakage transformer is not convenient to install inside the AC contactor, and it is not convenient to disassemble the leakage transformer inside the AC contactor, thereby affecting the production efficiency of the AC contactor and the subsequent maintenance cost of the AC contactor.

[0032] The utility model provides a mutual inductor module structure.

[0033] See also Figure 1 , Figure 3 and Figure 4 In one embodiment of the utility model, the transformer module structure includes a transformer, the transformer includes a body 1, the body 1 has a first side wall 11 and a second side wall 12 opposite to each other, and the body 1 is provided with a mounting hole 13 penetrating the first side wall 11 and the second side wall 12;

[0034] A first copper bar 2, the first copper bar 2 comprising an assembly portion 21, one end of the assembly portion 21 is provided with a mounting portion 211, the assembly portion 21 is inserted into the mounting hole 13 from the second side wall 12, so that the mounting portion 211 is exposed on the first side wall 11;

[0035] The technical solution of the utility model adopts a first copper bar 2 that is inserted into the mounting hole 13 and connected to the main body 1 as a whole, thereby modularizing the main body 1 and the first copper bar 2, thereby facilitating the installation of the mutual inductor inside the AC contactor, or facilitating the disassembly and overall replacement of the mutual inductor inside the AC contactor, thereby improving the production efficiency of the AC contactor and reducing the subsequent maintenance cost of the AC contactor; at the same time, the mounting portion 211 is exposed on the first side wall 11, which can facilitate the installation and connection of other copper bar components with the first copper bar 2.

[0036] In this embodiment, the first side wall 11 and the second side wall 12 can be arranged on opposite sides of the body 1 along the height direction of the body 1, so that the part of the first copper bar 2 connected to the contactor is arranged at the bottom of the body 1, so as to facilitate the installation and connection of the first copper bar 2 with the contactor and the installation and connection with the body 1, thereby saving the internal space of the intelligent electrical switch. In order to improve the stability of the installation connection between the first copper bar 2 and the body 1, the body 1 is provided with a mounting hole 13 from the first side wall 11 to the second side wall 12, and the first copper bar 2 is inserted into the mounting hole 13 from the second side wall 12 to the first side wall 11 through the assembly part 21. The first copper bar 2 and the body 1 are installed and connected as a whole through the assembly part 21 and the mounting hole 13, so that the first copper bar 2 and the body 1 are designed to be combined into a modular design, so as to facilitate the rapid replacement during the maintenance of the transformer, and at the same time facilitate the rapid installation of the first copper bar 2 and the body 1 as a whole on the base equipped with the contactor during production, thereby improving production efficiency. In addition, after the assembly portion 21 and the body 1 are assembled, the mounting portion 211 on the assembly portion 21 is just exposed outside the first side wall 11 , thereby facilitating the installation and connection of other copper busbars.

[0037] like Figure 3 and Figure 4 As shown, in this embodiment, the main body 1 includes a bottom shell 14 and an insulating member 141 arranged on the bottom shell 14, the side of the insulating member 141 facing away from the bottom shell 14 forms the first side wall 11, the side of the bottom shell 14 facing away from the insulating member 141 forms the second side wall 12, and the mounting hole 13 passes through the insulating member 141 and the bottom shell 14.

[0038] In this embodiment, the bottom shell 14 and the insulating member 141 can be integrally formed, so that the production personnel can directly produce the bottom shell 14 and the insulating member 141 at the same time, thereby facilitating the production and processing of the mutual inductor, and further improving the production efficiency of the mutual inductor. The first copper bar 2 can be provided in plurality. In order to avoid the first copper bar 2 interfering with the magnetic core assembly 4 in the sensing state and the mutual interference between adjacent first copper bar 2, the mounting hole 13 is provided to penetrate the insulating member 141 and the bottom shell 14, and the plurality of first copper bar 2 is detachably and spacedly penetrated in the bottom shell 14 and the insulating member 141, and the insulating function of the insulating member 141 is used to realize the electrical isolation between the first copper bar 2 and the magnetic core assembly 4 and the electrical isolation between the plurality of first copper bar 2.

[0039] like Figure 2 , Figure 3 and Figure 4 As shown, in this embodiment, the first copper busbar 2 also includes a connecting arm 22 provided at one end of the assembly portion 21 away from the mounting portion 211, and the connecting arm 22 is bent relative to the assembly portion 21. When the assembly portion 21 and the mounting hole 13 are plugged into place, the connecting arm 22 abuts against the second side wall 12.

[0040] In this embodiment, the connecting arm 22 is bent relative to the assembly portion 21, and the assembly portion 21 is limited to be plugged into the mounting hole 13, and the connecting arm 22 is exactly in contact with the second side wall 12. The mounting portion 211 is exposed on the first side wall 11, and the other end of the first copper bar 2 is connected to other copper bar pieces through the mounting portion 211, so that the movement of the first copper bar 2 in the height direction is limited by the cooperation of the connecting arm 22 and other copper bar pieces, thereby improving the stability of the connection between the first copper bar 2 and the bottom shell 14 and the insulating member 141, thereby ensuring the stability and reliability of the entire assembly of the first copper bar 2 with the bottom shell 14 and the insulating member 141.

[0041] like Figure 3 , Figure 4 and Figure 5 As shown, in this embodiment, the first copper bar pieces 2 are provided in plurality, the mounting holes 13 are provided in plurality, the plurality of mounting holes 13 are spaced apart in the body 1 , and the plurality of first copper bar pieces 2 are inserted into the plurality of mounting holes 13 one by one.

[0042] In this embodiment, multiple mounting holes 13 are arranged at intervals around the axis of the main body 1, and multiple first copper bar pieces 2 are inserted one-to-one into the multiple mounting holes 13, thereby improving the stability of the connection between the multiple first copper bar pieces 2 and the main body 1, so that the main body 1 can simultaneously install multiple first copper bar pieces 2.

[0043] like Figure 2 and Figure 4As shown, in this embodiment, the first side wall 11 is protrudingly provided with a partition rib 15 , and the partition rib 15 divides the first side wall 11 into a plurality of mutually separated installation areas 16 , and the plurality of installation holes 13 are arranged one-to-one in the plurality of installation areas 16 .

[0044] In this embodiment, the separation ribs 15 and the insulating member 141 are both made of insulating materials, and the separation ribs 15 and the insulating member 141 are integrally formed. In order to avoid mutual influence between the multiple first copper bar pieces 2, the first side wall 11 is divided into multiple mutually separated installation areas 16 by setting the separation ribs 15, so that each installation hole 13 is respectively arranged in each installation area 16, so that the first copper bar pieces 2 in each installation hole 13 are electrically isolated by the separation ribs 15, thereby improving the stability of the operation of the mutual inductor.

[0045] like Figure 2 and Figure 4 As shown, in this embodiment, the separation rib 15 includes a first convex rib 151 and a second convex rib 152 that are cross-arranged, and two adjacent installation areas 16 are separated by the first convex rib 151 or the second convex rib 152 .

[0046] In this embodiment, a cross-shaped structure is formed by cross-arranged first ribs 151 and second ribs 152, thereby dividing a plurality of installation areas 16 of equal area. Two adjacent installation areas 16 are separated by the first ribs 151 or the second ribs 152, so that each first copper bar 2 is electrically isolated from each other to avoid mutual influence between the plurality of first copper bar 2.

[0047] like Figure 2 As shown, in this embodiment, the mutual inductor also includes an upper cover 3, which is detachably connected to the bottom shell 14, and the upper cover 3 and the bottom shell 14 are enclosed to form a receiving cavity for accommodating the insulating member 141, and the upper cover 3 is provided with a through hole 31 for exposing the first side wall 11.

[0048] In this embodiment, the upper cover 3 may be provided with protrusions on opposite sides, and the bottom shell 14 may be provided with clamping parts on opposite sides of the protrusions. The side of the clamping part close to the protrusion may have a clamping groove matching the protrusion, and the protrusion is clamped in the clamping groove, thereby improving the stability of the connection between the upper cover 3 and the bottom shell 14. The insulating member 141 is inserted into the through hole 31, so that the first side wall 11 on the insulating member 141 is exposed to the upper cover 3, so as to facilitate the connection of the mounting part 211 with other copper busbars, thereby improving the stability of the connection between the insulating member 141 and the upper cover 3.

[0049] like Figure 5As shown, in this embodiment, the transformer module structure also includes a magnetic core assembly 4, and the magnetic core assembly 4 includes a magnetic core 41 and a shielding ring 42. The magnetic core 41 is sleeved on the outside of the insulating member 141, and the shielding ring 42 is wrapped around the outer periphery of the magnetic core 41.

[0050] In this embodiment, the shielding ring 42 includes a first half ring and a second half ring, the first half ring is arranged in the upper cover 3, and the second half ring is arranged in the base, and when the first half ring and the second half ring are wrapped around the outer periphery of the magnetic core 41, there is a gap between the first half ring and the second half ring for connecting the power supply line to the magnetic core 41, so as to facilitate the connection of the wire to the magnetic core 41. By providing the shielding ring 42 to protect the magnetic core 41, the influence of the external electromagnetic environment on the detection accuracy of the mutual inductor is shielded, and the influence of the electromagnetic field of the mutual inductor itself on the external electromagnetic environment is shielded.

[0051] In this embodiment, a plurality of reinforcing ribs are provided inside the bottom shell 14, and a plurality of cavities can be formed between the plurality of reinforcing ribs. A plurality of outlet holes are provided on a side wall of the bottom shell 14 close to the cavity. A plurality of wires are connected to a plurality of winding copper wire joints on the magnetic core 41 in a one-to-one correspondence, and a position where a single wire is connected to a single winding copper wire joint is set at a single cavity, and then the wire and the winding copper wire are sealed and fixed in the cavity by a glue filling process, thereby ensuring the stability and reliability of the connection between the wire and the winding copper wire. Furthermore, the number of cavities, wires and winding copper wires can be set to six, and the other ends of the six wires are respectively led out from the outlet holes and connected to the 6Pin male connector, and then electrically connected to the 6Ppin female connector on the line through the 6Pin male connector.

[0052] like Figure 1 As shown, in this embodiment, the transformer module structure further includes a second copper bar 5, one end of which is provided with a connecting portion 51, and the connecting portion 51 is connected to the mounting portion 211;

[0053] And / or, the assembly portion 21 is interference fit with the mounting hole 13 .

[0054] In this embodiment, in order to improve the connection stability between the assembly portion 21 and the mounting hole 13, the assembly portion 21 is interference fit with the mounting hole 13. The second copper bar 5 can be set to multiple according to the number of mounting portions 211, and multiple second copper bar 5 are connected to multiple mounting portions 211 one by one through the connecting portion 51, so as to facilitate the first copper bar 2 to connect other electrical components through the second copper bar 5. The second copper bar 5 can be bent at one end of the second copper bar 5 to form the connecting portion 51 according to the mounting area 16 where the mounting portion 211 is located, so as to facilitate the installation of the second copper bar 5 and the connection of the mounting portion 211.

[0055] The utility model also proposes an intelligent electrical switch, which includes a transformer module structure. The specific structure of the transformer module structure refers to the above embodiment. Since the intelligent electrical switch adopts all the technical solutions of all the above embodiments, it has at least all the beneficial effects brought by the technical solutions of the above embodiments, which will not be repeated here one by one.

[0056] The above description is only an exemplary embodiment of the present invention, and does not limit the patent scope of the present invention. All equivalent structural changes made by using the contents of the present invention specification and drawings under the technical concept of the present invention, or directly / indirectly applied in other related technical fields are included in the patent protection scope of the present invention.

Claims

1. A transformer module structure, characterized in that: include: A mutual inductor, the mutual inductor comprising a body, the body having a first side wall and a second side wall opposite to each other, the body being provided with a mounting hole penetrating the first side wall and the second side wall; The first copper bar piece includes an assembly part, one end of which is protruding with a mounting part, and the assembly part is inserted into the mounting hole from the second side wall so that the mounting part is exposed on the first side wall.

2. The transformer module structure according to claim 1, characterized in that: The body includes a bottom shell and an insulating member arranged on the bottom shell, the side of the insulating member away from the bottom shell forms the first side wall, the side of the bottom shell away from the insulating member forms the second side wall, and the mounting hole passes through the insulating member and the bottom shell.

3. The transformer module structure according to claim 2, characterized in that: The first copper bar also includes a connecting arm disposed at one end of the assembly portion away from the mounting portion, the connecting arm is bent relative to the assembly portion, and when the assembly portion and the mounting hole are plugged into place, the connecting arm abuts against the second side wall.

4. The transformer module structure according to claim 2, characterized in that: The first copper bar is provided in plurality, the mounting holes are provided in plurality, the mounting holes are arranged at intervals on the body, and the first copper bar is inserted into the mounting holes one by one.

5. The transformer module structure according to claim 4, characterized in that: The first side wall is provided with a partition rib protruding therefrom, and the partition rib divides the first side wall into a plurality of mutually separated installation areas, and the plurality of installation holes are arranged one-to-one in the plurality of installation areas.

6. The transformer module structure according to claim 5, characterized in that: The separation ribs include a first convex rib and a second convex rib arranged crosswise, and two adjacent installation areas are separated by the first convex rib or the second convex rib.

7. The transformer module structure according to claim 2, characterized in that: The mutual inductor further comprises an upper cover, which is detachably connected to the bottom shell, and the upper cover and the bottom shell are combined to form a receiving cavity for receiving the insulating member, and the upper cover is provided with a through hole for exposing the first side wall.

8. The transformer module structure according to any one of claims 2 to 7, characterized in that: The transformer module structure also includes a magnetic core assembly, which includes a magnetic core and a shielding ring. The magnetic core is sleeved on the outside of the insulating member, and the shielding ring is wrapped around the outer circumference of the magnetic core.

9. The transformer module structure according to claim 1, characterized in that: The transformer module structure further includes a second copper bar, one end of which is provided with a connecting portion, and the connecting portion is connected to the mounting portion; And / or, the assembly portion is interference fit with the mounting hole.

10. An intelligent electrical switch, characterized in that: It comprises the transformer module structure as claimed in any one of claims 1 to 9.

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