Shell assembly, mutual inductor and intelligent electrical switch

Abstract

The utility model discloses a housing assembly, mutual inductor and intelligent electrical switch, relates to mutual inductor equipment technical field, the housing assembly comprises a bottom housing, the bottom housing comprises a housing body and an insulating part integrally formed in the housing body, the insulating part is used for the mutual inductor magnetic core assembly sleeve; the top cover is arranged on the shell body in a covering mode, and an accommodating cavity used for accommodating the insulating part and the magnetic core assembly is defined by the top cover and the shell body; the technical scheme provided by the utility model has the technical effects that the shell body and the insulating part are tightly combined by an integrated forming process, so that a series of complicated assembly steps required in the production process of the mutual inductor are effectively reduced, and the whole production process of the mutual inductor is simplified to a great extent; therefore, the production cost of the mutual inductor is reduced, and the production efficiency of the mutual inductor is improved.

Description

Technical Field

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

[0002] The bottom shell and insulating parts currently used in the leakage current transformer need to go through multiple complex processing steps to form the final processed parts while meeting the requirements of the transformer being as small as possible and having a compact structure.

[0003] However, this manufacturing method makes the bottom shell and insulating parts in the transformer complicated in process and have a wide variety of specifications. In the production process, in order to complete the installation and connection of the bottom shell and insulating parts, multiple tedious processes are required, which undoubtedly increases the processing volume of the transformer. Too many processing steps not only reduce the production efficiency of the transformer, but also directly lead to an increase in the production cost of the transformer. Utility Model Content

[0004] The main purpose of the utility model is to provide a housing assembly, a mutual inductor and an intelligent electrical switch, aiming at improving the production efficiency of the housing assembly.

[0005] To achieve the above-mentioned purpose, the housing assembly proposed in the utility model is applied to a mutual inductor, wherein the housing assembly comprises a bottom housing, the bottom housing comprises a housing body and an insulating member integrally formed in the housing body, and the insulating member is used for sleeve arrangement of a magnetic core assembly of the mutual inductor; and

[0006] A top cover is disposed on the shell body, and the top cover and the shell body are surrounded to form a receiving cavity for receiving the insulating member and the magnetic core assembly.

[0007] In one embodiment, at least one side wall of the shell body is provided with a wire outlet groove, and the wire outlet groove has a notch opened toward one side of the top cover.

[0008] In one embodiment, at least one side wall of the top cover is provided with an inserting portion corresponding to the wire outlet groove, the inserting portion is inserted into the wire outlet groove from the notch, and the inserting portion and the groove wall of the wire outlet groove are combined to form a wire outlet hole.

[0009] In one embodiment, one end of the plug-in portion close to the notch has an arc-shaped end surface.

[0010] In one embodiment, the bottom shell also includes an annular protrusion arranged around the outer periphery of the insulating member, a first groove is formed between the annular protrusion and the insulating member, the top cover is provided with a second groove corresponding to the first groove, the first groove is connected to the second groove to form an accommodating space, and the accommodating space is used to accommodate the magnetic core assembly.

[0011] In one embodiment, a positioning notch is provided on the end surface of the annular protrusion facing the top cover, the positioning notch is communicated with the first groove, and the positioning notch is aligned with the wire outlet hole.

[0012] In one embodiment, the bottom shell is provided with a plurality of reinforcing ribs, wherein the reinforcing ribs are connected between the annular protrusion and the inner side wall of the bottom shell, the reinforcing ribs are located between any two adjacent positioning notches, and an installation area is formed between any two adjacent reinforcing ribs.

[0013] In one embodiment, protrusions are provided on two opposite sides of the top cover, and clamping parts corresponding to the protrusions are provided on two opposite sides of the bottom shell, and the protrusions are detachably clamped to the clamping parts.

[0014] The utility model also provides a mutual inductor, comprising a housing assembly as described in any of the above embodiments.

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

[0016] The technical solution of the utility model is to closely combine the shell body and the insulating part by adopting an integrated molding process, thereby effectively reducing the need for a series of complex assembly steps in the production process of the transformer, thereby greatly simplifying the entire production process of the transformer, thereby reducing the production cost of the transformer, and further improving the production efficiency of the transformer. At the same time, the integrated molding design of the shell body and the insulating part also makes the overall structure of the transformer more compact, thereby reducing the volume of the transformer, and further improving the service life and overall reliability of the transformer. 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 structural diagram of an embodiment of a housing assembly provided by the utility model;

[0019] Figure 2 An exploded view of the structure of an embodiment of a housing assembly provided by the utility model;

[0020] Figure 3 A schematic diagram of the structure of a bottom shell and a top cover in an embodiment of a housing assembly provided by the utility model;

[0021] Figure 4 A structural cross-sectional view of a bottom shell and a top cover in an embodiment of a housing assembly provided by the utility model;

[0022] Figure 5 A schematic structural diagram of a bottom shell and an insulating member in an embodiment of a housing assembly provided by the utility model;

[0023] Figure 6 This is a schematic structural diagram of a top cover in an embodiment of a housing assembly provided by the utility model.

[0024] Description of Figure Numbers:

[0025] 1. Bottom shell; 11. Shell body; 111. Wire outlet groove; 1111. Notch; 12. Insulator; 13. Annular protrusion; 131. Positioning notch; 14. First groove; 15. Reinforcing rib; 151. Installation area; 16. Clamping part; 2. Top cover; 21. Plug-in part; 211. End face; 22. Wire outlet hole; 23. Second groove; 24. Protrusion.

[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 bottom shell 1 and the insulating member 12 currently used in the leakage current transformer need to go through multiple complex processing steps to form the final processed parts while meeting the requirements of the transformer being as small as possible and having a compact structure.

[0031] However, this manufacturing method makes the bottom shell 1 and the insulating member 12 in the mutual inductor have problems of complex process and a wide variety of specifications. In the production process, in order to complete the installation and connection of the bottom shell 1 and the insulating member 12, multiple cumbersome processes are required, which undoubtedly increases the processing amount of the mutual inductor. Too many processing steps not only reduce the production efficiency of the mutual inductor, but also directly lead to an increase in the production cost of the mutual inductor.

[0032] The utility model provides a shell component.

[0033] See also Figures 1 to 4 In one embodiment of the utility model, the housing assembly is applied to a mutual inductor, and the housing assembly includes a bottom housing 1, wherein the bottom housing 1 includes a housing body 11 and an insulating member 12 integrally formed in the housing body 11, and the insulating member 12 is used for sleeve arrangement of a magnetic core assembly of the mutual inductor; and

[0034] A top cover 2, wherein the top cover 2 is disposed on the shell body 11, and the top cover 2 and the shell body 11 surround and form a receiving cavity for receiving the insulating member 12 and the magnetic core assembly;

[0035] The technical solution of the utility model is to closely combine the shell body 11 and the insulating member 12 by adopting an integrated molding process, thereby effectively reducing the need for a series of complex assembly steps in the production process of the transformer, thereby greatly simplifying the entire production process of the transformer, thereby reducing the production cost of the transformer, and further improving the production efficiency of the transformer. At the same time, the integrated molding design of the shell body 11 and the insulating member 12 also makes the overall structure of the transformer more compact, thereby reducing the volume of the transformer, and further improving the service life and overall reliability of the transformer.

[0036] In this embodiment, the shell body 11 and the insulating member 12 can be combined by an integral injection molding process, so that the shell body 11 and the insulating member 12 do not need to go through cumbersome assembly steps during the production process, thereby simplifying the production process of the shell body 11 and the insulating member 12, thereby reducing the production cost of the mutual inductor and improving the production efficiency of the mutual inductor. In addition, the integral molding design of the shell body 11 and the insulating member 12 also makes the overall structure of the mutual inductor more compact and the overall structure volume is small, which helps to improve the service life and reliability of the mutual inductor. The shape of the insulating member 12 can be a cylindrical boss shape, and the insulating member 12 includes a first connecting portion and a second connecting portion connected to each other. The first connecting portion and the bottom shell 1 are integrally injection molded, and the second connecting portion is used to connect with the top cover 2, thereby improving the stability of the connection between the top cover 2 and the insulating member 12. The insulating member 12 is also used to provide a sleeve for the magnetic core assembly in the mutual inductor, so as to fix the magnetic core assembly on the insulating member 12. The insulating member 12 is also used to fix the copper bar in the mutual inductor. The insulating member 12 may be provided with a mounting hole, and the copper bar is inserted into the mounting hole, and the copper bar and the mounting hole are interference fit, thereby improving the stability of the connection between the copper bar and the insulating member 12. In addition, the insulating member 12 electrically isolates the copper bar from the magnetic core assembly. In order to improve the stability of the connection between the shell assembly and the magnetic core assembly, the top cover 2 and the shell body 11 are surrounded by a receiving cavity, and the insulating member 12 and the magnetic core assembly are arranged in the receiving cavity, thereby improving the protective effect of the shell assembly on the insulating member 12 and the magnetic core assembly respectively.

[0037] like Figure 2 , Figure 3 , Figure 4 and Figure 5 As shown, in this embodiment, at least one side wall of the shell body 11 is provided with a wire outlet groove 111 , and the wire outlet groove 111 has a notch 1111 open toward one side of the top cover 2 .

[0038] In this embodiment, the wire outlet groove 111 may be U-shaped, and a plurality of wire outlet grooves 111 may be provided, and the plurality of wire outlet grooves 111 are arranged at intervals on the side wall of the same side of the shell body 11, and the wire used to connect the winding copper wire of the magnetic core in the magnetic core assembly passes through the wire outlet groove 111 and is connected to the winding copper wire. In order to improve the stability of the connection between the top cover 2 and the bottom shell 1, the wire outlet groove 111 has a notch 1111 open toward one side of the top cover 2, and the notch 1111 is used for the top cover 2 to be inserted into the wire outlet groove 111.

[0039] like Figure 2 and Figure 6 As shown, in this embodiment, at least one side wall of the top cover 2 is provided with an inserting portion 21 corresponding to the wire outlet groove 111, and the inserting portion 21 is inserted into the wire outlet groove 111 from the notch 1111, and the inserting portion 21 and the groove wall of the wire outlet groove 111 are enclosed to form a wire outlet hole 22.

[0040] In this embodiment, in order to further improve the stability of the connection between the top cover 2 and the bottom shell 1, the top cover 2 is provided with a plug-in portion 21, and the plug-in portion 21 and the wire outlet groove 111 are respectively provided on the side wall of the same side of the top cover 2 and the bottom shell 1, so that the plug-in portion 21 is conveniently inserted into the wire outlet groove 111 from the notch 1111, so that the top cover 2 is more stably covered on the bottom shell 1. The plug-in portion 21 and the groove wall of the wire outlet groove 111 are enclosed to form a wire outlet hole 22, and the outer diameter of the wire outlet hole 22 is the same as the outer diameter of the wire, so that the wire is stably fixed in the mutual inductor, so that the wire is connected to the 6-pin male connector of the intelligent electrical switch through the wire outlet hole 22, and then electrically connected to the 6-pin female connector on the circuit board.

[0041] In this embodiment, the plug-in portion 21 and the wire outlet groove 111 can be set to be multiple, and the number of the plug-in portion 21 and the wire outlet groove 111 can be set to be consistent, and the multiple plug-in portions 21 are inserted into the multiple wire outlet grooves 111 one by one, so that the multiple plug-in portions 21 and the groove walls of the multiple wire outlet grooves 111 are surrounded to form multiple wire outlet holes 22. Preferably, the plug-in portion 21 and the wire outlet groove 111 can be set to six.

[0042] like Figure 4 As shown, in this embodiment, one end of the plug-in portion 21 close to the notch 1111 has an arc-shaped end surface 211 .

[0043] In this embodiment, in order to make the plug-in portion 21 more closely contact the wire, the end of the plug-in portion 21 close to the notch 1111 has an arc-shaped end face 211, and the end face 211 and the groove wall of the wire outlet groove 111 are combined to form a circular wire outlet hole 22, thereby improving the stability of the connection between the wire and the wire outlet hole 22.

[0044] like Figure 2 , Figure 5 and Figure 6 As shown, in this embodiment, the bottom shell 1 also includes an annular protrusion 13 surrounding the outer periphery of the insulating member 12, a first groove 14 is formed between the annular protrusion 13 and the insulating member 12, the top cover 2 is provided with a second groove 23 corresponding to the first groove 14, the first groove 14 is connected to the second groove 23 to form an accommodating space, and the accommodating space is used to accommodate the magnetic core assembly.

[0045] In this embodiment, in order to more conveniently install the magnetic core assembly in the housing assembly, the first groove 14 and the second groove 23 can both be set as annular grooves. In order to improve the stability of the magnetic core assembly connected to the bottom shell 1 and the top cover 2 respectively, when the top cover 2 is connected to the bottom shell 1, the first groove 14 can be connected to the second groove 23 to form an accommodating space, so that the magnetic core assembly is installed in the accommodating space, thereby improving the protective effect of the bottom shell 1 and the top cover 2 on the magnetic core assembly.

[0046] like Figure 5 As shown, in this embodiment, the end surface 211 of the annular protrusion 13 facing the top cover 2 is provided with a positioning notch 131 , the positioning notch 131 is communicated with the first groove 14 , and the positioning notch 131 is aligned with the wire outlet hole 22 .

[0047] In this embodiment, in order to facilitate the connection between the winding copper wire on the magnetic core and the wire, the positioning notch 131 and the wire outlet hole 22 can be set to multiple, and the multiple positioning notches 131 are connected to the first groove 14, so that the wire can pass through the positioning notch 131 to connect the winding copper wire. In order to facilitate the connection between the wire in the transformer and the connector on the intelligent electrical switch, the positioning notch 131 is aligned with the wire outlet hole 22, so that the wire is connected to the 6-pin male connector of the intelligent electrical switch through the positioning notch 131 and the wire outlet hole 22, and then electrically connected to the 6-pin female connector on the line. Preferably, the wire outlet hole 22 can be set to six, so that the six wires in the transformer are connected to the 6-pin male connector of the intelligent electrical switch.

[0048] like Figure 5 As shown, in this embodiment, the bottom shell 1 is provided with a plurality of reinforcing ribs 15, and the reinforcing ribs 15 are connected between the annular protrusion 13 and the inner wall of the bottom shell 1, and the reinforcing ribs 15 are located between any two adjacent positioning notches 131, and an installation area 151 is formed between any two adjacent reinforcing ribs 15.

[0049] In this embodiment, in order to improve the connection stability of the wires in the bottom shell 1, multiple installation areas 151 can be formed between the multiple reinforcing ribs 15, and the installation areas 151 are respectively connected to the wire outlet hole 22, the positioning notch 131 and the first groove 14. A wire can be installed in each installation area 151, and then the wire is sealed and fixed by a glue filling process, thereby ensuring the stability and reliability of the wire installed in the installation area 151.

[0050] like Figure 1 and Figure 2 As shown, in this embodiment, protrusions 24 are provided on opposite sides of the top cover 2 , and clamping portions 16 corresponding to the protrusions 24 are provided on opposite sides of the bottom shell 1 , and the protrusions 24 are detachably clamped to the clamping portions 16 .

[0051] In this embodiment, the top cover 2 is detachably connected to the bottom shell 1, so that it is convenient for maintenance personnel to disassemble the top cover 2 or the bottom shell 1, 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 top cover 2 and the bottom shell 1, protrusions 24 are provided on both sides of the top cover 2, and the protrusions 24 are used for the clamping fit between the top cover 2 and the bottom shell 1. In order to better clamp the top cover 2, the bottom shell 1 is provided with clamping parts 16 matching the protrusions 24 on both sides of the bottom shell 1. The protrusions 24 are detachably clamped to the clamping parts 16, thereby improving the stability of the connection between the top cover 2 and the bottom shell 1, while retaining the convenience during disassembly.

[0052] The utility model also proposes a mutual inductor, which includes a shell assembly. The specific structure of the shell assembly refers to the above embodiment. Since the mutual inductor 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.

[0053] The utility model also proposes an intelligent electrical switch, which includes a transformer. The specific structure of the transformer 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.

[0054] In this embodiment, the intelligent electrical switch also includes a mounting base. In order to effectively improve the connection stability between the mutual inductor and the mounting base, snap hooks are provided on both sides of the bottom shell 1, and mounting parts matching the snap hooks are provided on the corresponding two sides of the mounting base. The snap hooks are snapped onto the mounting parts, thereby making the connection between the bottom shell 1 and the mounting base more secure, thereby greatly enhancing the overall stability and reliability.

[0055] In this embodiment, the intelligent electrical switch also includes a mounting base. In order to further effectively improve the connection stability between the bottom shell 1 and the mounting base, a mounting groove is provided on the side wall of the bottom shell 1 close to the mounting base. The mounting groove can be a cross-shaped structure, and a third connecting portion matching the mounting groove is provided at a corresponding position of the mounting base. The third connecting portion can be set to a cross-shaped structure corresponding to the mounting groove, and the third connecting portion is inserted into the mounting groove, thereby further improving the connection stability between the bottom shell 1 and the mounting base.

[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 housing assembly, applied to a mutual inductor, characterized in that: The housing assembly comprises: A bottom shell, the bottom shell comprising a shell body and an insulating member integrally formed in the shell body, the insulating member being used for sleeve mounting of a magnetic core assembly of the mutual inductor; and A top cover is disposed on the shell body, and the top cover and the shell body are surrounded to form a receiving cavity for receiving the insulating member and the magnetic core assembly.

2. The housing assembly according to claim 1, wherein: At least one side wall of the shell body is provided with a wire outlet groove, and the wire outlet groove has a notch opened toward one side of the top cover.

3. The housing assembly according to claim 2, wherein: At least one side wall of the top cover is provided with an inserting portion corresponding to the wire outlet groove, the inserting portion is inserted into the wire outlet groove from the notch, and the inserting portion and the groove wall of the wire outlet groove are surrounded to form a wire outlet hole.

4. The housing assembly according to claim 3, wherein: One end of the plug-in portion close to the notch has an arc-shaped end surface.

5. The housing assembly according to claim 3, wherein: The bottom shell also includes an annular protrusion arranged around the outer periphery of the insulating member, a first groove is formed between the annular protrusion and the insulating member, the top cover is provided with a second groove corresponding to the first groove, the first groove is connected to the second groove to form an accommodating space, and the accommodating space is used to accommodate the magnetic core assembly.

6. The housing assembly according to claim 5, characterized in that: The end surface of the annular protrusion facing the top cover is provided with a positioning notch, the positioning notch is communicated with the first groove, and the positioning notch is aligned with the wire outlet hole.

7. The housing assembly according to claim 6, wherein: The bottom shell is provided with a plurality of reinforcing ribs, wherein the reinforcing ribs are connected between the annular protrusion and the inner side wall of the bottom shell, and the reinforcing ribs are located between any two adjacent positioning notches, and an installation area is formed between any two adjacent reinforcing ribs.

8. The housing assembly according to any one of claims 1 to 7, characterized in that: The top cover is provided with protruding parts on two opposite sides, and the bottom shell is provided with clamping parts corresponding to the protruding parts on two opposite sides, and the protruding parts are detachably clamped to the clamping parts.

9. A mutual inductor, characterized in that: Comprising the housing assembly according to any one of claims 1 to 8.

10. An intelligent electrical switch, characterized in that: Comprising the mutual inductor as claimed in claim 9.

Images