Mutual inductor shell and alternating current contactor

Abstract

The utility model discloses a mutual inductor shell and an alternating-current contactor, and particularly relates to the technical field of electric power accessories. By arranging a first shell and a second shell, when the mutual inductor shell is used, a permanent magnet winding coil is firstly placed in a first mounting cavity; a wire end of the permanent magnet winding coil is pulled into the first accommodating cavity from a wire clamping groove, and the wire end of the permanent magnet winding coil is electrically conducted with a wire penetrating into the accommodating space through a wire penetrating hole, and then the first shell and the second shell are buckled; the permanent magnet winding coil can be contained in the installation space defined by the first installation cavity and the second installation cavity, and the wire end is contained in the containing space defined by the first containing cavity and the second containing cavity, so that the structural rationality of the mutual inductor is improved, and meanwhile, due to the fact that the structure of the mutual inductor shell is changed, the structure of the mutual inductor shell is improved. In this way, the mutual inductor and the alternating current contactor can be used in a fused mode in the using process, and the integrity and compactness of the whole structure are guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of power accessories, in particular to a mutual inductor housing and an AC contactor. Background Art

[0002] An AC contactor is an automatic switching device that connects or disconnects the main circuit of a motor or load. It uses electromagnetic force to close or disconnect the switch. It is suitable for frequent operation and remote control of high-voltage circuits, and has low-voltage release protection performance.

[0003] AC contactors usually use three arc extinguishing methods: double-break electric arc extinguishing, longitudinal arc extinguishing and grid arc extinguishing. They are used to eliminate the arc generated by the moving and static contacts during the opening and closing process. Contactors with a capacity of more than 10A have arc extinguishing devices. AC contactors also have auxiliary components such as reaction springs, buffer springs, contact pressure springs, transmission mechanisms, bases and terminals.

[0004] When the mutual inductor on the AC contactor in the prior art is used, it has the problem of being unable to meet the requirements of small size, compact structure and integrated installation when applied in the field of charging piles. Utility Model Content

[0005] The main purpose of the utility model is to provide a transformer housing and an AC contactor, aiming to solve the technical problem that the prior art cannot meet the requirements of small size, compact structure and integrated installation when applied in the field of charging piles.

[0006] In order to achieve the above object, the utility model provides a transformer housing, comprising:

[0007] A first shell, wherein two side surfaces of the first shell are respectively a first isolation side and a first installation side, the first isolation side is formed with a first isolation layer, the first installation side is formed with a first installation cavity and a first accommodation cavity arranged at intervals, the first installation cavity is connected with the first accommodation cavity through a plurality of spaced-apart wire clamping grooves, and the first accommodation cavity is formed with wire threading holes which are the same in number and correspond to the wire clamping grooves, the first shell is provided with a plurality of first through holes at intervals, and the first through holes penetrate the first shell in a direction from the first isolation side to the first installation side;

[0008] A second shell, the two sides of the second shell are respectively a second isolation side and a second installation side, the second isolation side is formed with a second isolation layer, the second installation side is formed with a second installation cavity and a second accommodation cavity arranged at intervals, the second shell is provided with second through holes that are the same in number and correspond one to one with the first through holes, and the second through holes penetrate the second shell from the second installation side to the second isolation side; and

[0009] The first isolation side and / or the second isolation side can be connected to an external structure; the first installation side is buckled on the second installation side, so that the first installation cavity and the installation cavity are interconnected to form an installation space for installing a permanent magnet winding coil, and the first accommodating cavity and the second accommodating cavity are interconnected to form an accommodating space for accommodating the wire ends of the permanent magnet winding coil.

[0010] In one embodiment, the first mounting side bulges in a direction away from the first isolation side to form a first insulating protrusion and a first insulating protrusion ring, the first insulating protrusion ring is arranged around the outer periphery of the first insulating protrusion, and the first mounting cavity is formed between the first insulating protrusion and the first insulating protrusion ring, the wire clamping groove is formed on the first insulating protrusion ring, and the first through hole passes through the first insulating protrusion.

[0011] In one embodiment, the shell wall of the first shell extends in a direction away from the first isolation side to form a buckle, and the shell wall of the second shell is formed with a slot corresponding to the position of the buckle, and the buckle is snap-fitted with the slot to enable the first shell to be buckled into the second shell.

[0012] In one embodiment, there are multiple buckles, which are spaced apart circumferentially along the first mounting side, and the outer shell wall of the second shell is formed with the same number of buckles and the same corresponding slots.

[0013] In one embodiment, the first mounting side is recessed toward the first isolation side to form a recessed groove, the recessed groove is arranged around the first mounting cavity and the outer periphery of the first accommodating cavity, and the recessed groove is connected to the first mounting cavity and the first accommodating cavity; the second mounting side protrudes toward a direction away from the second isolation side to form an insulating boss that is plugged into and cooperates with the recessed groove.

[0014] In one embodiment, the second mounting side bulges in a direction away from the second isolation side to form a second insulating protrusion and a second insulating protrusion ring, the second insulating protrusion ring is arranged around the outer circumference of the second insulating protrusion, and the first mounting cavity is formed between the second insulating protrusion and the second insulating protrusion ring, the second through hole passes through the second insulating protrusion, and when the insulating boss is buckled in the recess, the second insulating protrusion contacts the first insulating protrusion.

[0015] In one embodiment, a plurality of first partitions are disposed in the first accommodating cavity, and the plurality of first partitions divide the first accommodating cavity into wire placing grooves whose number is the same as the wire clamping grooves and which are connected one-to-one, and each of the wire placing grooves is connected to one of the wire threading holes.

[0016] In one embodiment, the first isolation layer includes a first isolation member and a first isolation cover, the first isolation side is recessed toward the first mounting side to form a first isolation groove for placing the first isolation member, and the first isolation cover is disposed on the notch of the first isolation groove.

[0017] In one embodiment, the second isolation layer includes a second isolation member and a second isolation cover, the second isolation side is recessed toward the second mounting side to form a second isolation groove for placing the second isolation member, and the second isolation cover is disposed on the notch of the second isolation groove.

[0018] Based on the same technical concept, in a second aspect, the utility model further proposes an AC contactor, which uses the transformer housing described in the first aspect.

[0019] The technical solution of the utility model is to set a first shell and a second shell. When in use, the permanent magnet winding coil is placed in the first installation cavity, so that the wire end of the permanent magnet winding coil is pulled from the wire clamping groove to the first accommodating cavity and the wire end of the permanent magnet winding coil is electrically connected with the wire inserted into the accommodating space through the threading hole, and the first shell and the second shell are buckled together, so that the permanent magnet winding coil can be accommodated in the installation space formed by the first installation cavity and the second installation cavity, and the wire end is accommodated in the accommodating space formed by the first accommodating cavity and the second accommodating cavity, thereby improving the structural rationality of the mutual inductor. At the same time, due to the change in the structure of the mutual inductor shell, the utility model can enable the mutual inductor and the AC contactor to be used in combination when in use, thereby ensuring the integrity and compactness of the overall structure, reducing the overall structure, and realizing the function of integrated installation with other electrical equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] 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.

[0021] Figure 1 A schematic diagram of the structure of the transformer housing provided by the utility model;

[0022] Figure 2 A schematic diagram of the planar structure of the transformer housing provided by the utility model;

[0023] Figure 3 for Figure 2 A schematic diagram of the structure of the AA section of the example;

[0024] Figure 4 A schematic structural diagram of a transformer housing provided by the utility model in an exploded state from a one-way perspective;

[0025] Figure 5 This is a structural schematic diagram of the transformer housing provided by the utility model in an exploded state from another viewing angle.

[0026] Description of Figure Numbers:

[0027] 100, first housing; 110, first isolation side; 120, first installation side; 130, first isolation layer; 121, first installation cavity; 122, first accommodating cavity; 123, wire clamping groove; 124, threading hole; 125, first through hole; 140, first insulating protrusion; 150, first insulating protruding ring; 160, buckle; 126, sink groove; 170, first partition; 131, first isolation member; 132, first isolation cover; 133, first isolation groove;

[0028] 200, second shell; 210, second isolation side; 220, second installation side; 230, second isolation layer; 211, second installation cavity; 212, second accommodating cavity; 213, second through hole; 240, card slot; 214, insulating boss; 250, second insulating protrusion; 260, second insulating protruding ring; 231, second isolation member; 232, second isolation cover; 233, second isolation groove.

[0029] 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

[0030] 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.

[0031] 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.

[0032] 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.

[0033] See also Figures 1 to 5 In one embodiment of the utility model, the transformer housing includes a first shell 100 and a second shell 200. The two side surfaces of the first shell 100 are respectively a first isolation side 110 and a first installation side 120. The first isolation side 110 is formed with a first isolation layer 130. The first installation side 120 is formed with a first installation cavity 121 and a first accommodation cavity 122 arranged at intervals. The first installation cavity 121 is connected to the first accommodation cavity 122 through a plurality of spaced-apart wire-clip grooves 123. The first accommodation cavity 122 is formed with threading holes 124 that are the same in number and one-to-one corresponding to the wire-clip grooves 123. The first shell 100 is provided with a plurality of first through holes 125 at intervals. The first through holes 125 penetrate the first shell 100 in a direction from the first isolation side 110 to the first installation side 120. The two sides of the second shell 200 are respectively Two isolation sides 210 and a second installation side 220, the second isolation side 210 is formed with a second isolation layer 230, the second installation side 220 is formed with a second installation cavity 211 and a second accommodating cavity 212 arranged at intervals, and the second shell 200 is provided with second through holes 213 that are the same in number and correspond one to one with the first through holes 125, and the second through holes 213 penetrate the second shell 200 from the second installation side 220 to the second isolation side 210, and the first isolation side 110 and / or the second isolation side 210 can be connected to an external structure; the first installation side 120 is buckled on the second installation side 220, so that the first installation cavity 121 and the installation cavity are interconnected to form an installation space for installing a permanent magnet winding coil, and the first accommodating cavity 122 and the second accommodating cavity 212 are interconnected to form an accommodating space for accommodating the wire ends of the permanent magnet winding coil.

[0034] It should be particularly and clearly stated that in this embodiment, the first shell 100 and the second shell 200 of the example should be made of insulating materials. The insulating materials of the example are made of materials that can achieve insulating functions in the prior art. They are only applied in this embodiment, and the materials themselves that make the first shell 100 and the second shell 200 are not improved or designed, so they will not be described one by one here.

[0035] In this embodiment, by setting the first shell 100 and the second shell 200, when in use, the permanent magnetic winding coil is placed in the first installation cavity 121, so that the wire end of the permanent magnetic winding coil is pulled from the wire clamping groove 123 to the first accommodating cavity 122 and the wire end of the permanent magnetic winding coil is electrically connected with the wire inserted into the accommodating space through the threading hole 124, so as to achieve the purpose of placing the wire end of the permanent magnetic winding coil and the wire inserted into the accommodating space through the threading hole 124 in the accommodating space together, so that the first shell 100 and the second shell 200 are buckled together, so as to The permanent magnet winding coil can be accommodated in the installation space formed by the first installation cavity 121 and the second installation cavity 211, and the wire end can be accommodated in the accommodating space formed by the first accommodating cavity 122 and the second accommodating cavity 212, thereby improving the structural rationality of the transformer. At the same time, since the structure of the transformer housing is changed, the utility model can allow the transformer and the AC contactor to be integrated for use during use, thereby ensuring the integrity and compactness of the overall structure, reducing the overall structure, and realizing the function of integrated installation with other electrical equipment.

[0036] In some specific embodiments, the first mounting side 120 bulges in a direction away from the first isolation side 110 to form a first insulating protrusion 140 and a first insulating protrusion ring 150. The first insulating protrusion ring 150 is arranged around the outer periphery of the first insulating protrusion 140, and a first mounting cavity 121 is formed between the first insulating protrusion 140 and the first insulating protrusion ring 150. A wire clamping groove 123 is formed on the first insulating protrusion ring 150, and a first through hole 125 passes through the first insulating protrusion 140.

[0037] In this embodiment, the first mounting side 120 is raised in a direction away from the first isolation side 110 to form a first insulating protrusion 140 and a first insulating protrusion ring 150. Therefore, when the utility model is in use, the first insulating protrusion 140 can be used to separate the first through hole 125 from the first mounting cavity 121. At the same time, the first insulating protrusion ring 150 can also be used to separate the first mounting cavity 121 from the first accommodating cavity 122, thereby effectively ensuring the safety of the entire transformer housing structure when in use.

[0038] It should be particularly and clearly stated that, in this embodiment, by providing the first insulating protrusion 140 and the first insulating protrusion ring 150, the utility model can avoid the defects of safety hazards caused by the existence of creepage or weak current between the structures when in use, thereby effectively ensuring the safe use of the transformer.

[0039] In some specific embodiments, the shell wall of the first shell 100 extends in a direction away from the first isolation side 110 to form a buckle 160, and the shell wall of the second shell 200 is formed with a slot 240 corresponding to the position of the buckle 160, and the buckle 160 is snap-fitted with the slot 240 to enable the first shell 100 to be buckled into the second shell 200.

[0040] In this embodiment, a buckle 160 is provided on the first shell 100 and a slot 240 is provided on the second shell 200, so that the buckle 160 can be engaged with the slot 240, thereby enabling the first shell 100 and the second shell 200 to be quickly engaged when the utility model is in use, while also ensuring the stability of the first shell 100 and the second shell 200 after being engaged.

[0041] In some preferred embodiments, there are multiple clips 160 that are spaced apart circumferentially along the first mounting side 120 , and the outer shell wall of the second shell 200 is formed with clip grooves 240 that are the same in number as the clips 160 and are arranged one-to-one.

[0042] In this embodiment, by setting the number of clips 160 to be multiple and the number of slots 240 to be multiple, the utility model can utilize the cooperation of the multiple clips 160 and the slots 240 that are set in the same number and one-to-one correspondence to improve the fastening stability of the first shell 100 and the second shell 200 when in use, thereby effectively ensuring the safe use of the transformer.

[0043] It should be particularly and clearly stated that, in the present embodiment, a card hole is also provided on the example first shell 100, which passes through the first insulating protrusion 140 along the direction from the first isolation side 110 to the first installation side 120. The example card hole should be able to engage with the external structure to achieve the purpose of installing the transformer housing on other structures.

[0044] In some specific embodiments, the first mounting side 120 is recessed in the direction toward the first isolation side 110 to form a recessed groove 126, the recessed groove 126 is arranged around the outer periphery of the first mounting cavity 121 and the first accommodating cavity 122, and the recessed groove 126 is connected to the first mounting cavity 121 and the first accommodating cavity 122; the second mounting side 220 protrudes in the direction away from the second isolation side 210 to form an insulating boss 214 that is plugged into and fits with the recessed groove 126.

[0045] In this embodiment, a recessed groove 126 is formed by recessing the first mounting side 120 in a direction toward the first isolation side 110, and at the same time, the second mounting side 220 is raised in a direction away from the second isolation side 210 to form an insulating boss 214 that is plugged into the recessed groove 126. As a result, when the first mounting side 120 and the second mounting side 220 are snapped together, the insulating boss 214 can extend into the recessed groove 126 to enhance the insulation function of the transformer housing.

[0046] In some specific embodiments, the second mounting side 220 bulges in a direction away from the second isolation side 210 to form a second insulating protrusion 250 and a second insulating protrusion ring 260. The second insulating protrusion ring 260 is arranged around the outer periphery of the second insulating protrusion 250, and a first mounting cavity 121 is formed between the second insulating protrusion 250 and the second insulating protrusion ring 260. The second through hole 213 passes through the second insulating protrusion 250, and when the insulating boss 214 is engaged with the groove 126, the second insulating protrusion 250 is in contact with the first insulating protrusion 140.

[0047] In this embodiment, the second mounting side 220 is raised in a direction away from the second isolation side 210 to form a second insulating protrusion 250 and a second insulating protrusion ring 260. Therefore, when the utility model is in use, the second insulating protrusion 250 can be used to separate the second through hole 213 from the second mounting cavity 211. At the same time, the second insulating protrusion ring 260 can also be used to separate the second mounting cavity 211 from the second accommodating cavity 212, thereby effectively ensuring the safety of the entire transformer housing structure when in use.

[0048] It should be particularly and clearly stated that in this embodiment, by providing the second insulating protrusion 250 and the second insulating protrusion ring 260, the utility model can avoid the defects of safety hazards caused by the existence of creepage or weak current between the structures when in use, and effectively ensure the safe use of the transformer.

[0049] In some specific embodiments, a plurality of first partitions 170 are disposed in the first accommodating cavity 122 , and the plurality of first partitions 170 divide the first accommodating cavity 122 into wire placing grooves that are the same in number as the wire clamping grooves 123 and are connected one-to-one, and each wire placing groove is connected to a wire threading hole 124 .

[0050] In this embodiment, by arranging a plurality of first partitions 170 in the first accommodating cavity 122, the partitions divide the first accommodating cavity 122 into wire placing grooves which are the same in number as the wire clamping grooves 123 and are connected one-to-one, and each wire placing groove is connected to a wire threading hole 124. Therefore, when the utility model is in use, the partitions can be used to separate a plurality of wire placing grooves, so as to achieve the purpose of placing a plurality of wiring heads separately, thereby effectively ensuring the safe operation of the overall structure.

[0051] Of course, in specific implementation, glue can be poured and sealed in each wire trough to ensure the firmness of the terminal head, thereby further ensuring the stable operation of the transformer.

[0052] In some specific embodiments, the first isolation layer 130 includes a first isolation member 131 and a first isolation cover 132, and the first isolation side 110 is recessed toward the first mounting side 120 to form a first isolation groove 133 for placing the first isolation member 131, and the first isolation cover 132 is covered on the notch of the first isolation groove 133.

[0053] In this embodiment, the first isolation layer 130 is configured to include a first isolation member 131 and a first isolation cover 132, and at the same time, a first isolation groove 133 for placing the first isolation member 131 is formed by recessing the first isolation side 110, thereby ensuring the isolation effect of the first isolation side 110, and being able to effectively shield the magnetic field interference of the external environment on the mutual inductor. At the same time, the magnetic field interference of the mutual inductor on the outside world can be reduced, thereby ensuring the stable operation of the mutual inductor.

[0054] In some specific embodiments, the second isolation layer 230 includes a second isolation member 231 and a second isolation cover 232, and the second isolation side 210 is recessed toward the second mounting side 220 to form a second isolation groove 233 for placing the second isolation member 231, and the second isolation cover 232 is covered on the notch of the second isolation groove 233.

[0055] In this embodiment, the second isolation layer 230 is configured to include a second isolation piece 231 and a second isolation cover 232, and a second isolation groove 233 for placing the second isolation piece 231 is formed by recessing the second isolation side 210, thereby ensuring the isolation effect of the second isolation side 210. It can cooperate with the first isolation layer 130 to effectively shield the magnetic field interference of the external environment on the mutual inductor, and at the same time reduce the magnetic field interference of the mutual inductor on the outside world, thereby ensuring the purpose of stable operation of the mutual inductor.

[0056] Based on the same technical concept, in a second aspect, the utility model further proposes an AC contactor, which uses the transformer housing of the first aspect.

[0057] The AC contactor provided in the embodiment of the present application adopts the transformer housing in the above embodiment, which can solve the technical problem that when the transformer on the AC contactor is in use, the coil winding on the permanent magnet leaks out, affecting the safe use of the entire transformer. Compared with the prior art, the beneficial effects of the AC contactor provided in the embodiment of the present application are the same as the beneficial effects of the transformer housing provided in the above embodiment, and other technical features in the transformer housing are the same as the features disclosed in the above embodiment, which will not be repeated here.

[0058] 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 housing, characterized in that: include: A first shell, wherein two side surfaces of the first shell are respectively a first isolation side and a first installation side, the first isolation side is formed with a first isolation layer, the first installation side is formed with a first installation cavity and a first accommodation cavity arranged at intervals, the first installation cavity is connected with the first accommodation cavity through a plurality of spaced-apart wire clamping grooves, and the first accommodation cavity is formed with wire threading holes which are the same in number and correspond to the wire clamping grooves, the first shell is provided with a plurality of first through holes at intervals, and the first through holes penetrate the first shell in a direction from the first isolation side to the first installation side; A second shell, the two sides of the second shell are respectively a second isolation side and a second installation side, the second isolation side is formed with a second isolation layer, the second installation side is formed with a second installation cavity and a second accommodation cavity arranged at intervals, the second shell is provided with second through holes that are the same in number and correspond one to one with the first through holes, and the second through holes penetrate the second shell from the second installation side to the second isolation side; and The first isolation side and / or the second isolation side can be connected to an external structure; the first installation side is buckled on the second installation side, so that the first installation cavity and the installation cavity are interconnected to form an installation space for installing a permanent magnet winding coil, and the first accommodating cavity and the second accommodating cavity are interconnected to form an accommodating space for accommodating the wire ends of the permanent magnet winding coil.

2. The transformer housing according to claim 1, characterized in that: The first mounting side bulges in a direction away from the first isolation side to form a first insulating protrusion and a first insulating protrusion ring. The first insulating protrusion ring is arranged around the outer periphery of the first insulating protrusion, and the first mounting cavity is formed between the first insulating protrusion and the first insulating protrusion ring. The wire clamping groove is formed on the first insulating protrusion ring, and the first through hole passes through the first insulating protrusion.

3. The transformer housing according to claim 2, characterized in that: The shell wall of the first shell extends in a direction away from the first isolation side to form a buckle, and the shell wall of the second shell forms a slot corresponding to the position of the buckle, and the buckle is engaged with the slot to make the first shell buckle on the second shell.

4. The transformer housing according to claim 3, characterized in that: There are multiple buckles, which are spaced apart from each other along the circumference of the first mounting side. The outer shell wall of the second shell is formed with the same number of buckles and the same corresponding slots.

5. The transformer housing according to claim 2, characterized in that: The first installation side is recessed toward the first isolation side to form a recessed groove, the recessed groove is arranged around the first installation cavity and the outer periphery of the first accommodating cavity, and the recessed groove is connected to the first installation cavity and the first accommodating cavity; the second installation side protrudes toward the direction away from the second isolation side to form an insulating boss that is plugged into and cooperates with the recessed groove.

6. The transformer housing according to claim 5, characterized in that: The second mounting side bulges in a direction away from the second isolation side to form a second insulating protrusion and a second insulating protrusion ring, the second insulating protrusion ring is arranged around the outer circumference of the second insulating protrusion, and the first mounting cavity is formed between the second insulating protrusion and the second insulating protrusion ring, the second through hole passes through the second insulating protrusion, and when the insulating boss is buckled in the recess, the second insulating protrusion contacts the first insulating protrusion.

7. The transformer housing according to any one of claims 1 to 6, characterized in that: A plurality of first partitions are arranged in the first accommodating cavity, and the plurality of first partitions divide the first accommodating cavity into wire placing grooves which are the same in number as the wire clamping grooves and are connected one-to-one, and each of the wire placing grooves is connected to one of the wire threading holes.

8. The transformer housing according to any one of claims 1 to 6, characterized in that: The first isolation layer includes a first isolation member and a first isolation cover. The first isolation side is recessed toward the first installation side to form a first isolation groove for placing the first isolation member. The first isolation cover is disposed on the notch of the first isolation groove.

9. The transformer housing according to any one of claims 1 to 6, characterized in that: The second isolation layer includes a second isolation member and a second isolation cover. The second isolation side is recessed toward the second mounting side to form a second isolation groove for accommodating the second isolation member. The second isolation cover is disposed on the notch of the second isolation groove.

10. An AC contactor, characterized in that: The transformer housing according to any one of claims 1 to 9 is used.

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