Base structure of alternating current contactor

Abstract

The utility model discloses a base structure of an alternating current contactor, which comprises a base and a base, two sides of the base are provided with fixing plates, the fixing plates are provided with first grooves, two sides of the base are provided with channels for inserting the fixing plates, two sides of the channels are provided with movable blocks capable of moving left and right, and the movable blocks are provided with second grooves. A spring is arranged in the movable block and acts on the movable block to enable the movable block to be embedded into the first groove, the movable block is provided with an operation block, and a chamfer is arranged below the movable block. The fixing plate is inserted into the channel, the fixing plate expands towards the two sides of the channel through the chamfers, so that the movable block is embedded into the first groove, connection between the base and the base is completed, the movable block leaves the first groove through the operation block, connection between the base and the base is removed, and the product has the advantages of being rapid in assembly and rapid in disassembly.

Description

Technical Field

[0001] The utility model relates to the technical field of dry transformers, in particular to a base structure of an AC contactor. Background Art

[0002] An AC contactor is mainly used for frequently switching on or off an AC circuit, has a large control capacity, can be operated remotely, and can cooperate with a relay to achieve timing operation, interlock control, various quantitative controls, and undervoltage and overvoltage protection, and is widely used in an automatic control circuit.

[0003] The existing AC contactor mainly consists of an electromagnetic system, a contact system, an arc extinguishing device, an insulating housing and accessories. The housing consists of a base, a base plate and an arc extinguishing cover. The electromagnetic system consists of a moving iron core, a static iron core, a coil and a push rod. The static iron core and the coil are installed and fixed on the base plate. The moving iron core is connected to the push rod. The push rod passes through the base and is connected to the contact system. The base is connected to the arc extinguishing device and plays a role in breaking the arc generated by the contact system.

[0004] Generally, the existing base and the base plate are connected and fixed by screws. This connection method is not convenient for maintenance. Therefore, the applicant has made a beneficial design and found a method to solve the above problems. The technical solution to be introduced below is generated under this background. Summary of the Invention

[0005] The purpose of the utility model is to overcome the deficiencies existing in the connection design of the base and the base plate of the traditional AC contactor, and provides a product with quick assembly and quick disassembly.

[0006] To solve the above problems, the utility model adopts the following technical solutions.

[0007] A base structure of an AC contactor includes a base and a base plate. Fixed plates are provided on both sides of the base plate. First grooves are provided on the fixed plates. Channels for inserting the fixed plates are provided on both sides of the base. Movable blocks that can move left and right are provided on both sides of the channels. Springs are provided in the movable blocks and act on the movable blocks to make the movable blocks embed into the first grooves. Operating blocks are provided on the movable blocks. Chamfers are provided below the movable blocks.

[0008] Preferably, a relief groove is provided near the top of the fixed plate. The first grooves are provided on both sides of the relief groove.

[0009] Preferably, second grooves are provided on both sides of the channel. A limiting groove is provided at the bottom of the second groove. A third groove is provided at the top of the second groove.

[0010] Preferably, it also includes a sealing plate, which is provided with an avoidance groove corresponding to the give way groove, and the sealing plate is also provided with limiting through holes, which are arranged on both sides of the avoidance groove, and the sealing plate is installed and fixed in the third groove.

[0011] Preferably, the movable block is slidably arranged in the limiting groove, the movable block is provided with at least two blind holes, the movable block is provided with a fixing portion and is embedded in the first groove, and the chamfer is arranged below the fixing portion.

[0012] Preferably, the operating block passes through the limiting through hole and protrudes from the sealing plate.

[0013] Preferably, the spring is arranged in the blind hole and abuts against a side wall of the second groove.

[0014] Beneficial effects:

[0015] Compared with the prior art, the beneficial effects of the utility model are:

[0016] According to the utility model, when the fixed plate is inserted into the channel, the fixed plate abuts against the chamfer and the movable block gradually expands to both sides of the channel, the spacing between the movable blocks is convenient for accommodating the entry of the fixed plate, the spring is squeezed and stores energy, and when the movable block coincides with the first groove, the spring releases the elastic force to embed the movable block into the first groove, thereby preventing the fixed plate from leaving the channel; the movable block can be moved away from the first groove by the operating block, so that the fixed plate is separated from the channel, the connection between the base and the base is released, and the time for assembly and disassembly is reduced, thereby overcoming the problems raised by the background technology and enabling the product to have the advantages of fast assembly and fast disassembly. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of the internal structure of a base structure of an AC contactor of the utility model;

[0018] Figure 2 For this utility model Figure 1 A partial structure enlarged view of a detail A of a base structure of an AC contactor;

[0019] Figure 3 This is a structural schematic diagram of a base structure of an AC contactor of the utility model;

[0020] Figure 4 For this utility model Figure 3 A detailed view of a base structure of an AC contactor B, a partial structure enlargement;

[0021] Figure 5 This is a structural schematic diagram of a sealing plate of a base structure of an AC contactor of the utility model;

[0022] Figure 6Exploded structural schematic diagram of a base structure of an AC contactor according to the present utility model;

[0023] The corresponding relationship between each attached drawing label and the component name in the figure is as follows:

[0024] Reference numerals: 1, base; 2, base plate; 3, movable block; 4, spring; 5, sealing plate; 11, channel; 12, second groove; 13, limiting groove; 14, third groove; 21, fixing plate; 22, first groove; 23, relief groove; 31, operating block; 32, fixing portion; 33, chamfer; 34, blind hole; 51, avoiding groove; 52, limiting through hole. Specific embodiments

[0025] Next, the technical solutions of the present utility model will be clearly and completely described in conjunction with the embodiments. Obviously, the described embodiments are some, but not all, of the embodiments of the present utility model. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0026] In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by terms such as "upper", "lower", "left", "right", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present utility model.

[0027] In the embodiments of the present utility model, "and / or" is merely a description of the association relationship of associated objects, indicating that there can be three relationships. For example, A and / or B can represent: A exists alone, A and B exist simultaneously, and B exists alone. In addition, the character " / " in this article generally represents an "or" relationship between the associated objects before and after.

[0028] Reference example Figures 1 to 6 , a base structure of an AC contactor, including a base 1 and a base plate 2. Fixing plates 21 are provided on both sides of the base plate 2, and a first groove 22 is provided on the fixing plates 21. Channels 11 for inserting the fixing plates 21 are provided on both sides of the base 1. Movable blocks 3 that can move left and right are provided on both sides of the channels 11. Springs 4 are provided inside the movable blocks 3 and act on the movable blocks 3 to make the movable blocks 3 embed into the first grooves 22. Operating blocks 31 are provided on the movable blocks 3, and chamfers 33 are provided below the movable blocks 3;

[0029] It is worth mentioning that a relief groove 23 is provided near the top of the fixing plate 21, and the first grooves 22 are arranged on both sides of the relief groove 23. The relief groove 23 avoids interference between the fixing plate 21 and the sealing plate 5, and the first grooves 22 are used in cooperation with the fixing parts 32;

[0030] It is worth mentioning that second grooves 12 are provided on both sides of the channel 11. A limiting groove 13 is provided at the bottom of the second groove 12, and a third groove 14 is provided at the top of the second groove 12. The second groove 12 accommodates the movable block 3, the limiting groove 13 limits the distance that the fixing part 32 extends out of the channel 11, and the third groove 14 provides support for the sealing plate 5 and is connected and fixed to the sealing plate 5;

[0031] It is worth mentioning that a sealing plate 5 is further included. The sealing plate 5 is provided with an avoidance groove 51 corresponding to the relief groove 23. The sealing plate 5 is further provided with limiting through holes 52, which are arranged on both sides of the avoidance groove 51. The sealing plate 5 is installed and fixed in the third groove 14. Through the avoidance groove 51, the fixing plate 21 is inserted into it. At the same time, the avoidance groove 51 prevents the fixing plate 21 from generating left - right displacement, further providing guarantee for the connection between the fixing plate 21 and the channel 11, and the limiting through holes 52 limit the moving distance of the operating block 31 to control the retraction of the movable block 3;

[0032] It is worth mentioning that the movable block 3 is slidably arranged in the limiting groove 13. The movable block 3 is provided with at least two blind holes 34. The movable block 3 is provided with fixing parts 32, which are embedded in the first grooves 22. A chamfer 33 is arranged below the fixing parts 32. The blind holes 34 provide a space for accommodating the spring 4 to prevent the spring 4 from detaching from the movable block 3. The fixing parts 32 prevent the fixing plate 21 from detaching from the channel 11, and the chamfer 33 is used in cooperation with the fixing plate 21 to attach Figure 2 Taking the orientation as a reference, the distance between the chamfers 33 on both sides of the channel 11 is wider at the bottom and narrower at the top;

[0033] It is worth mentioning that the operating block 31 passes through the limiting through holes 52 and protrudes from the sealing plate 5. By operating the operating block 31, the fixing part 32 is separated from the first groove 22, so that the fixing plate 21 is detached from the channel 11, and the connection between the base 1 and the base 2 is released;

[0034] It is worth mentioning that the spring 4 is arranged in the blind hole 34 and abuts against the side wall of the second groove 12. The spring 4 provides elastic force for the movable block 3 to make the movable block 3 stably embedded in the first groove 22.

[0035] The working principle of the present utility model is described as follows:

[0036] Insert the fixing plate 21 into the channel 11. After the fixing plate 21 abuts against the chamfer 33, continue to apply a thrust force to the base 2 or a downward pressure to the base 1. The fixing plate 21 will gradually expand the distance between the fixing parts 32. The spring 4 is squeezed by the movable block 3 to store energy until the fixing part 32 coincides with the first groove 22. The spring 4 releases the elastic force to the movable block 3 to embed the fixing part 32 into the first groove 22, completing the connection and fixation of the base 1 and the base 2. The above operation steps greatly reduce the time required for assembly.

[0037] Through the above design, the product can achieve the advantages of rapid assembly and disassembly.

[0038] The above content is a further detailed description of the present invention in combination with specific embodiments. It cannot be determined that the specific implementation of the present invention is only limited to these descriptions. For those of ordinary skill in the technical field to which the present invention belongs, without departing from the concept of the present invention, several simple deductions or substitutions can be made, which should all be regarded as belonging to the protection scope determined by the claims submitted for the present invention.

Claims

1. The base structure of an AC contactor, comprising a base (1) and a base plate (2), characterized in that: On both sides of the base (2), there are fixed plates (21). The fixed plates (21) are provided with first grooves (22). On both sides of the base (1), there are channels (11) for the fixed plates (21) to be inserted. On both sides of the channels (11), there are movable blocks (3) that can move left and right. A spring (4) is provided in the movable blocks (3) and acts on the movable blocks (3) to make the movable blocks (3) embed into the first grooves (22). The movable blocks (3) are provided with operating blocks (31), and chamfers (33) are provided below the movable blocks (3).

2. The base structure of the AC contactor according to claim 1, characterized in that: Near the top of the fixed plate (21), there is a relief groove (23), and the first grooves (22) are arranged on both sides of the relief groove (23).

3. The base structure of the AC contactor according to claim 2, characterized in that: On both sides of the channel (11), there are second grooves (12). At the bottom of the second grooves (12), there are limit grooves (13), and at the top of the second grooves (12), there are third grooves (14).

4. The base structure of the AC contactor according to claim 3, characterized in that: It further includes a sealing plate (5). The sealing plate (5) is provided with an avoidance groove (51) corresponding to the relief groove (23). The sealing plate (5) is also provided with limit through holes (52) and is arranged on both sides of the avoidance groove (51). The sealing plate (5) is installed and fixed in the third grooves (14).

5. The base structure of the AC contactor according to claim 3 or 4, characterized in that: The movable blocks (3) are slidably arranged in the limit grooves (13). The movable blocks (3) are provided with at least two blind holes (34). The movable blocks (3) are provided with fixing parts (32) and are embedded into the first grooves (22). The chamfers (33) are arranged below the fixing parts (32).

6. The base structure of the AC contactor according to claim 5, characterized in that: The operating blocks (31) pass through the limit through holes (52) and protrude from the sealing plate (5).

7. The base structure of the AC contactor according to claim 6, wherein: The springs (4) are arranged in the blind holes (34) and abut against the side walls of the second grooves (12).

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