Mutual inductor structure and intelligent electrical switch

Abstract

The utility model discloses a mutual inductor structure and an intelligent electrical switch, and relates to the electrical element technology field, the mutual inductor structure comprises a housing, the housing comprises a first housing and a second housing, two opposite sides of the first housing are provided with first clamping parts, and the second housing is provided with second clamping parts. Second clamping parts corresponding to the first clamping parts are arranged on the two opposite sides of the second shell, and the first clamping parts are detachably clamped to the second clamping parts; the magnetic core assembly is arranged in the shell, the magnetic core assembly comprises a magnetic core and a shielding ring, and the periphery of the magnetic core is wrapped with the shielding ring; the technical scheme provided by the utility model has the technical effects that the first clamping part is detachably clamped on the second clamping part, so that when a maintainer needs to maintain or repair the mutual inductor, the first shell or the second shell can be easily detached, and the work of the maintainer is greatly facilitated.

Description

Technical Field

[0001] The utility model relates to the technical field of electrical components, in particular to a mutual inductor structure and an intelligent electrical switch. Background Art

[0002] The mounting shell of the current transformers commonly used in the market is mainly fixed by multiple fasteners. This structural design can ensure the stability of the transformer in most cases, but when the transformer fails and needs to be repaired or disassembled and installed for daily inspection, the mounting shell of the transformer cannot be quickly disassembled and installed.

[0003] Since the installation shell needs to be fixed by multiple fasteners, it takes more time and effort to disassemble and install the installation shell, making the maintenance work more complicated and cumbersome. This not only prolongs the maintenance cycle, but also increases the maintenance cost, which has an adverse impact on the use and maintenance of the transformer. In addition, under the requirement of making the leakage transformer as small as possible and compact in structure, the circular hole of the insulating part in the traditional leakage transformer cannot provide sufficient stability for the assembly of multiple copper bars, and cannot meet the electrical isolation between multiple copper bars. Utility Model Content

[0004] The main purpose of the utility model is to provide a mutual inductor structure and an intelligent electrical switch, aiming to improve the problem that the housing of the mutual inductor is inconvenient to disassemble and install.

[0005] To achieve the above-mentioned object, the mutual inductor structure proposed in the utility model includes a housing, wherein the housing includes a first housing and a second housing, wherein first clamping parts are provided on opposite sides of the first housing, and second clamping parts corresponding to the first clamping parts are provided on opposite sides of the second housing, and the first clamping parts are detachably clamped to the second clamping parts; and

[0006] A magnetic core component is arranged in the shell, and the magnetic core component includes a magnetic core and a shielding ring, and the shielding ring is wrapped around the outer periphery of the magnetic core.

[0007] In one embodiment, the first clamping portion is a protrusion protruding from the outer wall of the first shell, and the second clamping portion has a clamping slot at one end close to the first shell, and the first clamping portion is detachably clamped in the clamping slot.

[0008] In one embodiment, the mutual inductor structure also includes an insulating part arranged in the shell, the magnetic core assembly is sleeved on the insulating part, the insulating part is connected to the second shell, a through hole is provided on the side of the first shell away from the second shell, and the insulating part is inserted into the through hole.

[0009] In one embodiment, a protrusion protruding toward the second shell is provided on the periphery of the through hole, and the insulating member includes a first plug-in portion and a first connecting portion connected to each other, the first connecting portion is connected to the second shell, the first plug-in portion is inserted into the through hole, and a step surface is formed between the first connecting portion and the first plug-in portion, and the step surface abuts against the protrusion.

[0010] In one embodiment, a first groove is formed between the protrusion and the inner wall of the first shell, and a second groove is formed between the insulating member and the inner wall of the second shell. When the first shell is connected to the second shell, the first groove is connected to the second groove to form an accommodating space, and the magnetic core assembly is arranged in the accommodating space.

[0011] In one embodiment, the shielding ring includes a first half ring and a second half ring, the first half ring is arranged in the first groove, and the second half ring is arranged in the second groove. When the first half ring and the second half ring are wrapped around the outer circumference of the magnetic core, there is a gap between the first half ring and the second half ring for connecting the power supply line to the magnetic core.

[0012] In one embodiment, the first shell is provided with a second connection portion on an outer side wall close to the second shell, the second shell is provided with a third groove on an outer side wall close to the first shell, and the second connection portion is detachably inserted into the third groove.

[0013] In one embodiment, the mutual inductor structure further includes a mounting base, and snap hooks are provided on opposite sides of the second shell, and third snap parts corresponding to the snap hooks are provided on opposite sides of the mounting base, and the snap hooks are snapped to the third snap parts.

[0014] In one embodiment, a side wall of the second shell away from the first shell has a mounting groove, and the mounting base is provided with a second plug-in portion, and the second plug-in portion is inserted into the mounting groove.

[0015] The utility model also provides an intelligent electrical switch, comprising the mutual inductor structure as described in any of the above embodiments.

[0016] The technical solution of the utility model adopts the first clamping part to be detachably clamped to the second clamping part, so that the first shell and the second shell are detachably connected, so that maintenance personnel can easily remove the first shell or the second shell when they need to maintain or repair the mutual inductor, thereby greatly facilitating the work of maintenance personnel, allowing maintenance personnel to quickly replace the magnetic core assembly inside the mutual inductor without spending a lot of time and energy to disassemble or install the shell. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] 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.

[0018] Figure 1 A schematic diagram of a structure of an embodiment of a mutual inductor structure provided by the utility model;

[0019] Figure 2 for Figure 1 A partial enlarged view of the middle A;

[0020] Figure 3 An exploded view of the structure of an embodiment of a mutual inductor structure provided by the utility model;

[0021] Figure 4 This is a structural explosion diagram from another angle of an embodiment of the mutual inductor structure provided by the utility model.

[0022] Description of Figure Numbers:

[0023] 1. Shell; 11. First shell; 111. First clamping part; 112. Through hole; 113. Protrusion; 114. Second connection part; 12. Second shell; 121. Second clamping part; 122. Clamping groove; 123. Third groove; 124. Clamping hook; 125. Installation groove; 126. Reinforcement rib; 1261. Cavity; 127. Wire outlet; 2. Magnetic core assembly; 21. Magnetic core; 22. Shielding ring; 221. First half ring; 222. Second half ring; 3. Insulating member; 31. First plug-in part; 32. First connection part; 33. Step surface; 34. First groove; 35. Second groove; 4. Mounting base; 41. Third clamping part; 42. Second plug-in part.

[0024] 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

[0025] 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.

[0026] 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.

[0027] 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.

[0028] The installation shell of the current transformer commonly used in the market is mainly fixed and connected by multiple fasteners. This structural design can ensure the stability of the transformer in most cases, but when the transformer fails and needs to be repaired or needs to be disassembled and installed for daily inspection, the installation shell of the transformer cannot be quickly disassembled and installed. Since the installation shell needs to be fixed by multiple fasteners, more time and energy are required in the process of disassembling and installing the installation shell, making the maintenance work more complicated and cumbersome. This not only prolongs the maintenance cycle, but also increases the maintenance cost, which has an adverse effect on the use and maintenance of the transformer. In addition, under the requirements of making the leakage transformer as small as possible and compact in structure, the circular holes of the insulating parts in the traditional leakage transformer cannot provide sufficient stability for the assembly of multiple copper bars, and cannot meet the electrical isolation between multiple copper bars.

[0029] The utility model provides a mutual inductor structure.

[0030] See also Figures 1 to 4 In one embodiment of the utility model, the mutual inductor structure includes a housing 1, the housing 1 includes a first housing 11 and a second housing 12, the first housing 11 is provided with first clamping parts 111 on opposite sides, the second housing 12 is provided with second clamping parts 121 corresponding to the first clamping parts 111 on opposite sides, the first clamping parts 111 are detachably clamped to the second clamping parts 121; and

[0031] A magnetic core component 2, wherein the magnetic core component 2 is disposed in the housing 1, and the magnetic core component 2 comprises a magnetic core 21 and a shielding ring 22, wherein the shielding ring 22 is wrapped around the outer periphery of the magnetic core 21;

[0032] The technical solution of the utility model adopts the first clamping portion 111 to be detachably clamped to the second clamping portion 121, so that the first shell 11 and the second shell 12 are detachably connected, so that maintenance personnel can easily remove the first shell 11 or the second shell 12 when they need to maintain or repair the mutual inductor, thereby greatly facilitating the work of maintenance personnel, so that maintenance personnel can quickly replace the magnetic core assembly 2 inside the mutual inductor without spending a lot of time and energy to disassemble or install the shell 1;

[0033] In this embodiment, the housing 1 is used to protect the internal electrical components of the transformer. The housing 1 includes a first housing 11 and a second housing 12. The first housing 11 is detachably connected to the second housing 12, so that it is convenient for maintenance personnel to disassemble the first housing 11 or the second housing 12, so that it is convenient for maintenance personnel to replace the electrical components in the transformer, thereby improving the work efficiency of maintenance personnel in repairing the transformer. In order to further improve the stability of the connection between the first housing 11 and the second housing 12, a first clamping portion 111 is provided at both sides of the first housing 11. The first clamping portion 111 is used for the clamping fit of the first housing 11 and the second housing 12. In order to better clamp the second housing 12 with the first housing 11, a second clamping portion 121 matching the first clamping portion 111 is provided at both sides of the second housing 12. The first clamping portion 111 is detachably clamped to the second clamping portion 121, thereby improving the stability of the connection between the first housing 11 and the second housing 12, while retaining the convenience during disassembly.

[0034] In this embodiment, the magnetic core assembly 2 is installed inside the shell 1, and the shell 1 provides protection for the magnetic core assembly 2, thereby increasing the service life of the magnetic core assembly 2. The magnetic core assembly 2 includes a magnetic core 21, a shielding ring 22, and a winding copper wire wound on the magnetic core 21, and the magnetic core 21 is used to generate and control the magnetic field. The shielding ring 22 is used to wrap around the periphery of the magnetic core 21 to reduce the influence of the external magnetic field on the magnetic core 21, thereby improving the performance of the magnetic core assembly 2, and further making the mutual inductor more stable during operation, and better meeting the needs of users. A plurality of reinforcing ribs 126 are provided inside the shell 1, and a plurality of cavities 1261 can be formed between the plurality of reinforcing ribs 126, and a plurality of outlet holes 127 are provided on a side wall of the shell 1 close to the cavity 1261. Multiple wires are connected to multiple winding copper wire joints on the magnetic core 21 in a one-to-one correspondence, and the position where a single wire is connected to a single winding copper wire joint is set at a single cavity 1261, and then the wire and the winding copper wire are sealed and fixed in the cavity 1261 through a glue filling process, thereby ensuring the stability and reliability of the connection between the wire and the winding copper wire. Further, the cavity 1261, the wire and the winding copper wire can be set to six, and the other ends of the six wires are respectively led out from the outlet hole 127 and connected to the 6Pin male connector, and then electrically connected to the 6Ppin female connector on the line through the 6Pin male connector.

[0035] like Figure 1 and Figure 2 As shown, in this embodiment, the first clamping portion 111 is a protrusion protruding from the outer wall of the first shell 11, and the second clamping portion 121 has a clamping groove 122 at one end close to the first shell 11, and the first clamping portion 111 is detachably clamped in the clamping groove 122.

[0036] In this embodiment, in order to facilitate the first clamping portion 111 to be clamped to the second clamping portion 121, the first clamping portion 111 has a guide slope for guiding the first clamping portion 111 to be clamped into the second clamping portion 121 along one side close to the second clamping portion 121. The operator can make the guide slope abut against the inner wall of the clamping slot 122, and then press the first clamping portion 111 to make the guide slope slide along the side wall of the clamping slot 122, so that the first clamping portion 111 is clamped into the clamping slot 122, so as to facilitate the first clamping portion 111 to be clamped into the second clamping portion 121. When disassembly is required, the operator can break the second clamping portion 121 on any side in a direction away from the first clamping portion 111 to disengage the second clamping portion 121 from the clamping slot 122, and then remove the first clamping portion 111 from the clamping slot 122, so as to complete the quick disassembly of the first housing 11 and the second housing 12.

[0037] like Figure 3As shown, in this embodiment, the mutual inductor structure also includes an insulating part 3 arranged in the shell 1, the magnetic core assembly 2 is sleeved on the insulating part 3, the insulating part 3 is connected to the second shell 12, and a through hole 112 is provided on the side of the first shell 11 away from the second shell 12, and the insulating part 3 is inserted into the through hole 112.

[0038] In this embodiment, the mutual inductor structure further includes a plurality of copper bars, which are arranged in an insulating member 3 at intervals. The insulating member 3 is used to fix the magnetic core assembly 2, thereby saving the internal space of the mutual inductor. The insulating member 3 is also used to electrically isolate the copper bar and the magnetic core assembly 2, thereby avoiding mutual influence between the copper bar and the magnetic core assembly 2 when they are operating. In order to improve the stability of the connection between the insulating member 3 and the housing 1, the insulating member 3 is inserted into the through hole 112 so that the insulating member 3 is plugged and matched with the first housing 11, and the other end of the insulating member 3 is integrally formed with the second housing 12.

[0039] like Figure 3 and Figure 4 As shown, in this embodiment, the periphery of the through hole 112 is provided with a protrusion 113 protruding toward the second shell 12, and the insulating member 3 includes a first plug-in portion 31 and a first connecting portion 32 connected to each other, the first connecting portion 32 is connected to the second shell 12, the first plug-in portion 31 is inserted into the through hole 112, and a step surface 33 is formed between the first connecting portion 32 and the first plug-in portion 31, and the step surface 33 abuts against the protrusion 113.

[0040] In this embodiment, in order to further improve the stability of the connection between the insulating member 3 and the first housing 11, a protrusion 113 protruding toward the second housing 12 is provided at the periphery of the through hole 112, and the protrusion 113 has a through hole 112 inside. The outer diameter of the through hole 112 can be larger than the outer diameter of the first plug-in portion 31, and the outer diameter of the first plug-in portion 31 can be smaller than the first connection portion 32, so that a step surface 33 is formed between the first connection portion 32 and the first plug-in portion 31, and the insulating member 3 is inserted into the through hole 112 through the first plug-in portion 31, so that the step surface 33 abuts against the protrusion 113, thereby improving the stability of the connection between the insulating member 3 and the first housing 11. In order to further improve the stability of the connection between the insulating member 3 and the second housing 12, the first connection portion 32 and the second housing 12 are integrally formed.

[0041] like Figure 3 and Figure 4As shown, in this embodiment, a first groove 34 is formed between the protrusion 113 and the inner wall of the first shell 11, and a second groove 35 is formed between the insulating member 3 and the inner wall of the second shell 12. When the first shell 11 is connected to the second shell 12, the first groove 34 is connected to the second groove 35 to form an accommodating space, and the magnetic core assembly 2 is arranged in the accommodating space.

[0042] In this embodiment, in order to more conveniently install the magnetic core component 2 in the housing 1, the first groove 34 and the second groove 35 can both be set as annular grooves. In order to improve the stability of the connection between the magnetic core component 2 and the housing 1, when the first housing 11 is covered on the second housing 12, the first groove 34 can be connected to the second groove 35 to form an accommodating space, so that the magnetic core component 2 is located in the accommodating space, thereby improving the protective effect of the housing 1 on the magnetic core component 2.

[0043] like Figure 3 and Figure 4 As shown, in this embodiment, the shielding ring 22 includes a first half ring 221 and a second half ring 222, the first half ring 221 is arranged in the first groove 34, and the second half ring 222 is arranged in the second groove 35, and when the first half ring 221 and the second half ring 222 are wrapped around the outer periphery of the magnetic core 21, there is a gap between the first half ring 221 and the second half ring 222 for connecting the power supply line to the magnetic core 21.

[0044] In this embodiment, in order to improve the connection stability between the shielding ring 22 and the housing 1, the first half ring 221 is arranged in the first groove 34, and the second half ring 222 is arranged in the second groove 35, so that the first half ring 221 and the second half ring 222 are located in the accommodating space. In order to facilitate the connection between the external wires and the windings on the magnetic core 21, there is a gap between the first half ring 221 and the second half ring 222 for the power supply wire to connect the magnetic core 21, so as to facilitate the electrical connection between the windings of the magnetic core 21 and the external electrical components through the gap.

[0045] like Figure 3 and Figure 4 As shown, in this embodiment, a second connecting portion 114 is provided on the outer wall of the first shell 11 close to the second shell 12 , and a third groove 123 is provided on the outer wall of the second shell 12 close to the first shell 11 , and the second connecting portion 114 is detachably inserted into the third groove 123 .

[0046] In this embodiment, in order to further improve the connection stability between the first shell 11 and the second shell 12, a second connecting portion 114 is protruded from the edge of the outer wall of one end of the first shell 11 close to the second shell 12, and a third groove 123 is recessed on the edge of the outer wall of one end of the second shell 12 close to the first shell 11, and the second connecting portion 114 is inserted into the third groove 123.

[0047] like Figure 3 and Figure 4 As shown, in this embodiment, the transformer structure also includes a mounting base 4, and snap-on hooks 124 are provided on opposite sides of the second shell 12, and third snap-on portions 41 corresponding to the snap-on hooks are provided on opposite sides of the mounting base 4, and the snap-on hooks 124 are snap-connected to the third snap-on portions 41.

[0048] In this embodiment, in order to effectively improve the stability of the connection between the mutual inductor and the mounting base 4, snap hooks 124 are arranged on both sides of the second shell 12, and third snap-in parts 41 matching the snap-in hooks 124 are arranged on the corresponding two sides of the mounting base 4. The snap-in hooks 124 are snapped onto the third snap-in parts 41, thereby making the connection between the mutual inductor and the mounting base 4 more secure, thereby greatly enhancing the overall stability and reliability.

[0049] like Figure 3 and Figure 4 As shown, in this embodiment, the side wall of the second shell 12 away from the first shell 11 has a mounting groove 125 , and the mounting base 4 is provided with a second plug-in portion 42 , and the second plug-in portion 42 is inserted into the mounting groove 125 .

[0050] In this embodiment, in order to further effectively improve the connection stability between the mutual inductor and the mounting base 4, a mounting groove 125 is provided on the side wall of the second shell 12 close to the mounting base 4. The mounting groove 125 can be a cross-shaped structure, and second plug-in portions 42 matching the mounting groove 125 are provided at the corresponding two side positions of the mounting base 4. The second plug-in portion 42 can be set to a cross-shaped structure corresponding to the mounting groove 125, and the second plug-in portion 42 is inserted into the mounting groove 125, thereby further improving the connection stability between the mutual inductor and the mounting base 4.

[0051] The utility model also proposes an intelligent electrical switch, which includes a transformer structure. The specific structure of the transformer 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.

[0052] 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 mutual inductor structure, characterized in that: include: A housing, the housing comprising a first housing and a second housing, the first housing having first clamping portions on opposite sides thereof, the second housing having second clamping portions on opposite sides thereof corresponding to the first clamping portions, the first clamping portions being detachably clamped to the second clamping portions; and A magnetic core component is arranged in the shell, and the magnetic core component includes a magnetic core and a shielding ring, and the shielding ring is wrapped around the outer periphery of the magnetic core.

2. The mutual inductor structure according to claim 1, characterized in that: The first clamping portion is a protrusion convexly arranged on the outer wall of the first shell, and the second clamping portion has a clamping slot at one end close to the first shell, and the first clamping portion is detachably clamped in the clamping slot.

3. The mutual inductor structure according to claim 1, characterized in that: The mutual inductor structure also includes an insulating member arranged in the shell, the magnetic core assembly is sleeved on the insulating member, the insulating member is connected to the second shell, a through hole is provided on a side of the first shell away from the second shell, and the insulating member is inserted into the through hole.

4. The mutual inductor structure according to claim 3, characterized in that: The periphery of the through hole is provided with a protrusion protruding toward the second shell, and the insulating member includes a first plug-in portion and a first connecting portion connected to each other, the first connecting portion is connected to the second shell, the first plug-in portion is inserted in the through hole, and a step surface is formed between the first connecting portion and the first plug-in portion, and the step surface abuts against the protrusion.

5. The mutual inductor structure according to claim 4, characterized in that: A first groove is formed between the protrusion and the inner wall of the first shell, and a second groove is formed between the insulating member and the inner wall of the second shell. When the first shell is connected to the second shell, the first groove is connected to the second groove to form an accommodating space, and the magnetic core assembly is arranged in the accommodating space.

6. The mutual inductor structure according to claim 5, characterized in that: The shielding ring includes a first half ring and a second half ring, the first half ring is arranged in the first groove, and the second half ring is arranged in the second groove. When the first half ring and the second half ring are wrapped around the outer circumference of the magnetic core, there is a gap between the first half ring and the second half ring for connecting the power supply line to the magnetic core.

7. The mutual inductor structure according to claim 1, characterized in that: The first shell is provided with a second connection portion on an outer side wall close to the second shell, the second shell is provided with a third groove on an outer side wall close to the first shell, and the second connection portion is detachably inserted into the third groove.

8. The mutual inductor structure according to any one of claims 1 to 7, characterized in that: The mutual inductor structure also includes a mounting base, and the second shell is provided with snap hooks on opposite sides, and the mounting base is provided with third snap parts corresponding to the snap hooks on opposite sides, and the snap hooks are snapped with the third snap parts.

9. The mutual inductor structure according to claim 8, characterized in that: The side wall of the second shell away from the first shell has a mounting groove, and the mounting base is provided with a second plug-in portion, and the second plug-in portion is inserted in the mounting groove.

10. An intelligent electrical switch, characterized in that: The invention comprises a mutual inductor structure as claimed in any one of claims 1 to 9.

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