AC contactor construction based on housing optimization

Abstract

The application discloses an alternating current contactor structure based on shell optimization, which comprises a left shell, a left inner shell, a right inner shell and a right shell in sequence, the left shell is connected with the left inner shell through buckling, the right inner shell is connected with the right shell through buckling, the left inner shell and the right inner shell are provided with front mounting cavities and rear mounting cavities, the rear mounting cavity of the left inner shell is opposite to the rear mounting cavity of the right inner shell, the front sides of the two rear mounting cavities after being closed are provided with swing grooves for swingers, the two rear mounting cavities after being closed are provided with magnetic retention mechanisms, the front mounting cavities are respectively provided with movable contacts and movable contact transmission mechanisms, the magnetic retention mechanisms are matched with the swingers, and the swingers are hinged with middle swing plates. The multi-piece shell structure and the distribution of the inner cavities of the alternating current contactor structure based on shell optimization make the overall structure more compact and smaller in size, the components are better separated, the components do not affect each other, the high efficiency of action can be ensured, the modular combination structure is formed, and the components can be conveniently replaced and maintained.

Description

Technical Field

[0001] This invention relates to an AC contactor construction based on housing optimization, and more particularly to a modular construction of the housing. Background Technology

[0002] The invention patent with announcement number CN205984819U discloses a compression spring and a push rod relay including the compression spring. Section

[0046] of its specification discloses that "the base 1 has a partial magnetic circuit arrangement structure and a contact arrangement structure on both sides respectively. An upright mounting bracket is provided on the base 1 between the magnetic circuit arrangement structure and the contact arrangement structure. Starting from the arrangement structure closest to the magnetic circuit part, the mounting bracket sequentially provides a yoke mounting groove, an armature mounting groove, a compression spring mounting groove, and a push rod assembly groove." Furthermore, it includes... Figure 1 Figure 7 discloses the structure of the base. The housing disclosed in the prior patent consists of a top cover and a base. The base is used to support various components. Therefore, it does not provide sufficient isolation between the components, and it is inconvenient to disassemble and replace the components later. In addition, it does not provide sufficient support for the components, and the transmission efficiency from the magnetic holding mechanism to the moving contact is poor, resulting in insufficient effectiveness. Summary of the Invention

[0003] In view of the shortcomings of the prior art, the technical problem to be solved by the present invention is to provide an AC contactor structure based on housing optimization, which can improve the isolation protection and support between the components, while improving the stability and efficiency of the moving contact operation.

[0004] To address this, the present invention provides an AC contactor structure based on shell optimization, comprising, in sequence, a left outer shell, a left inner shell, a right inner shell, and a right outer shell. The left outer shell is fastened to the left inner shell, and the right inner shell is fastened to the right outer shell. The left inner shell and the right inner shell are detachably fixedly connected. Both the left and right inner shells have a front mounting cavity and a rear mounting cavity. The front mounting cavity opens outward, and the rear mounting cavity opens inward. The rear mounting cavities of the left and right inner shells are aligned and engaged. The front sides of the two engaged rear mounting cavities have swing grooves for the passage of a swinging device. Magnetic holding mechanisms are installed in the two engaged rear mounting cavities. The front mounting cavities respectively house a moving contact and a moving contact transmission mechanism. The stationary contact is at least partially disposed in the front mounting cavity and is correspondingly disposed to the moving contact. The magnetic holding mechanism is equipped with a swinging device, which is hinged to an intermediate swing plate. The intermediate swing plate extends forward from the swing groove and is hinged to the moving contact transmission mechanism.

[0005] Preferably, the left inner shell and the right inner shell are connected by screws, and the left and right inner shells have inwardly opening central mounting cavities. The central mounting cavities of the left inner shell and the right inner shell mate to form a central mounting cavity.

[0006] The cavity has an intermediate swing plate extending from the swing groove into the middle cavity. The end of the intermediate swing plate is equipped with a swing plate shaft. An arc-shaped moving groove is provided on the partition separating the middle mounting cavity and the front mounting cavity. The swing plate shaft passes through the arc-shaped moving grooves on both sides and is hinged to the moving contact transmission mechanism.

[0007] Preferably, the moving contact shaft passes through the partition plate, and both sides of the moving contact shaft are hinged with a moving contact, a moving contact bracket, and a mounting bracket. The pins of the mounting bracket are inserted and fixed in the corresponding holes of the housing.

[0008] Preferably, both the left inner shell and the right inner shell are provided with a transverse groove and a pin groove on their outer sides. The transverse groove has a connecting through hole on one side near the moving contact transmission mechanism. The other side of the transverse rod is connected to the pin, and the pin is embedded in the pin groove. The transverse rod cooperates with the oscillator through the connecting through hole.

[0009] Preferably, the left inner shell and the right inner shell are respectively provided with a connecting through hole and a threaded hole, and the screw passes through the connecting through hole and enters the threaded hole to realize the bolt connection.

[0010] Preferably, the upper and lower sides of the left inner shell and the right inner shell are provided with a plurality of protrusions with inclined surfaces. The left outer shell and the right outer shell are provided with a corresponding number of fastening holes corresponding to the protrusions. The left outer shell is sleeved on the left inner shell and fastened to the protrusions through the fastening holes to achieve fastening. The right outer shell is sleeved on the right inner shell and fastened to the protrusions through the fastening holes to achieve fastening.

[0011] Technical effects of the present invention:

[0012] 1. The multi-plate housing structure and its internal cavity distribution of the AC contactor structure based on housing optimization provided by the present invention make the overall structure more compact and smaller in size, better separate the components, avoid mutual interference, and improve the stability and efficiency of the moving contact operation.

[0013] 2. This invention forms a modular combination structure, which facilitates the replacement of parts and maintenance. Because the shell adopts a multi-piece structure, it is convenient to improve and upgrade each shell in the later stage, which is beneficial to later optimization. Attached Figure Description

[0014] Figure 1 A schematic diagram of the magnetic holding contactor provided by the present invention.

[0015] Figure 2 for Figure 1 A schematic diagram of the magnetic holding contactor after removing the right outer casing.

[0016] Figure 3 for Figure 2 A three-dimensional schematic diagram.

[0017] Figure 4 for Figure 3 A schematic diagram of the magnetic holding contactor after the right inner shell has been removed.

[0018] Figure 5 for Figure 4 A schematic diagram of the magnetic holding contactor after the left inner shell has been removed.

[0019] Figure 6 for Figure 5 A three-dimensional structural diagram of the magnetic holding contactor after removing the left outer casing. Detailed Implementation

[0020] To further illustrate the technical means and effects of the present invention in achieving its intended purpose, the following detailed description of the specific implementation methods, structures, features, and effects of the present invention, in conjunction with the accompanying drawings and preferred embodiments, is provided below.

[0021] Reference Figure 1-6 As shown, the AC contactor structure based on shell optimization provided by the present invention includes, in sequence, a left outer shell 1, a left inner shell 2, a right inner shell 3, and a right outer shell 4. The left outer shell 1 is fastened to the left inner shell 2, and the right inner shell 3 is fastened to the right outer shell 4. The left inner shell 2 and the right inner shell 3 are detachably fixedly connected. Both the left inner shell 2 and the right inner shell 3 have a front mounting cavity 5 and a rear mounting cavity 6. The front mounting cavity 5 opens outward, and the rear mounting cavity 6 opens inward. The rear mounting cavities 6 of the left inner shell 2 and the right inner shell 3 are aligned and engaged. After engagement, the two rear mounting cavities 6... The front side has a swing groove 8 for the swing device 7 to pass through. The two rear mounting cavities 6 after mating are equipped with magnetic holding mechanisms 9. The front mounting cavity 5 is respectively equipped with a moving contact 10 and a moving contact transmission mechanism. The stationary contact 11 is at least partially disposed in the front mounting cavity 5 and is disposed corresponding to the moving contact 10. In this embodiment, the stationary contact 11 is partially fixed inside the housing and partially disposed outside as a wiring terminal. The magnetic holding mechanism 9 is equipped with a swing device 7. The swing device 7 is hinged to the intermediate swing plate 12. The intermediate swing plate 12 extends forward from the swing groove 8 and is hinged to the moving contact transmission mechanism.

[0022] Reference Figure 1As shown in Figure 6, the left inner shell 2 and the right inner shell 3 are connected by screws 13. A central mounting cavity 14 is formed inwardly on both the left and right inner shells 2 and 3. The central mounting cavity 14 is open inwards and aligns with the central mounting cavity 14 of the left and right inner shells 3 to form a central cavity. The intermediate swing plate 12 extends from the swing groove 8 into the central cavity. A swing plate shaft 15 is provided at the end of the intermediate swing plate 12. An arc-shaped moving groove 16 is provided on the partition separating the central mounting cavity 14 and the front mounting cavity 5. The swing plate shaft 15 passes through the arc-shaped moving grooves 16 on both sides and is hinged to the moving contact transmission mechanism. The moving contact shaft 17 passes through the partition. Moving contacts 10, moving contact brackets 19, and mounting brackets 21 are hinged to both sides of the moving contact shaft 17. The pins of the mounting bracket 21 are inserted and fixed in the corresponding housing holes. Both the left inner shell 2 and the right inner shell 3 have transverse grooves 22 and pin grooves 23 on their outer sides. The transverse groove 22 has a connecting through hole on one end near the moving contact transmission mechanism. The other end of the transverse rod 24 is connected to the pin 25, which is embedded in the pin groove 23. The transverse rod 24 is hinged to the oscillator 7 through the connecting through hole. The left inner shell 2 and the right inner shell 3 are respectively provided with connecting through holes and threaded holes. The threaded holes are formed on the shells, and screws 13 pass through the connecting through holes and enter the threaded holes to achieve bolt connection. The upper and lower sides of the left inner shell 2 and the right inner shell 3 are provided with multiple protrusions 28 with inclined surfaces. The left outer shell 1 and the right outer shell 4 are provided with a corresponding number of fastening holes 29 corresponding to the protrusions 28. The left outer shell 1 is sleeved on the left inner shell 2 and fastened to the protrusions 28 through the fastening holes 29. The right outer shell 4 is sleeved on the right inner shell 3 and fastened to the protrusions 28 through the fastening holes 29.

[0023] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention in any way. Although the present invention has been disclosed above with reference to preferred embodiments, it is not intended to limit the present invention. Any person skilled in the art can make some modifications or alterations to the above-disclosed technical content to create equivalent embodiments without departing from the scope of the present invention. Any simple modifications, equivalent changes and alterations made to the above embodiments based on the technical essence of the present invention without departing from the scope of the present invention shall still fall within the scope of the present invention.

Claims

1. An AC contactor structure based on housing optimization, characterized in that: The device comprises a left outer shell, a left inner shell, a right inner shell, and a right outer shell. The left outer shell is fastened to the left inner shell, and the right inner shell is fastened to the right outer shell. The left inner shell and the right inner shell are detachably fixedly connected. Both the left and right inner shells have a front mounting cavity and a rear mounting cavity. The front mounting cavity opens outward, and the rear mounting cavity opens inward. The rear mounting cavities of the left and right inner shells are aligned and engaged. The front sides of the two engaged rear mounting cavities have swing grooves for the swinging device to pass through. Magnetic holding mechanisms are installed in the two engaged rear mounting cavities. The front mounting cavities respectively house a moving contact and a moving contact transmission mechanism. A stationary contact is at least partially disposed in the front mounting cavity and is correspondingly disposed to the moving contact. The magnetic holding mechanism is equipped with a swinging device, which is hinged to a middle swing plate. The middle swing plate extends forward from the swing groove and is hinged to the moving contact transmission mechanism. The outer sides of both the left and right inner shells are provided with transverse grooves and pin grooves. The transverse groove has a connecting through hole on one end near the moving contact transmission mechanism. The other end of the transverse rod is connected to the pin, which is embedded in the pin groove. The transverse rod cooperates with the oscillator through the connecting through hole.

2. The AC contactor structure based on housing optimization according to claim 1, characterized in that: The left inner shell and the right inner shell are connected by screws. The left inner shell and the right inner shell have a central mounting cavity facing inward. The central mounting cavity is open inward. The central mounting cavity of the left inner shell and the central mounting cavity of the right inner shell are aligned to form a central cavity. The central swing plate extends from the swing groove and enters the central cavity. The end of the central swing plate is equipped with a swing plate shaft. The partition separating the central mounting cavity and the front mounting cavity has an arc-shaped moving groove. The swing plate shaft passes through the arc-shaped moving grooves on both sides and is hinged to the moving contact transmission mechanism.

3. The AC contactor structure based on housing optimization according to claim 2, characterized in that: The moving contact shaft passes through the partition plate. Both sides of the moving contact shaft are hinged with a moving contact, a moving contact bracket, and a mounting bracket. The pins of the mounting bracket are inserted and fixed in the corresponding holes of the housing.

4. The housing-optimized AC contactor construction according to claim 1, 2, or 3, characterized in that: The left inner shell and the right inner shell are respectively provided with a connecting through hole and a threaded hole. The screw passes through the connecting through hole and enters the threaded hole to realize the bolt connection.

5. The AC contactor structure based on housing optimization according to claim 1, characterized in that: The left inner shell and the right inner shell are respectively provided with a connecting through hole and a threaded hole. The screw passes through the connecting through hole and enters the threaded hole to realize the bolt connection.

6. The housing-optimized AC contactor construction according to claim 1, 2, or 3, characterized in that: The left and right inner shells are provided with multiple protrusions with inclined surfaces on their upper and lower sides. The left and right outer shells are provided with a corresponding number of fastening holes corresponding to the protrusions. The left outer shell is sleeved on the left inner shell and fastened to the protrusions through the fastening holes. The right outer shell is sleeved on the right inner shell and fastened to the protrusions through the fastening holes.

7. The AC contactor structure based on housing optimization according to claim 1, characterized in that: The left and right inner shells are provided with multiple protrusions with inclined surfaces on their upper and lower sides. The left and right outer shells are provided with a corresponding number of fastening holes corresponding to the protrusions. The left outer shell is sleeved on the left inner shell and fastened to the protrusions through the fastening holes. The right outer shell is sleeved on the right inner shell and fastened to the protrusions through the fastening holes.

8. The AC contactor construction based on housing optimization according to claim 4, characterized in that: The left and right inner shells are provided with multiple protrusions with inclined surfaces on their upper and lower sides. The left and right outer shells are provided with a corresponding number of fastening holes corresponding to the protrusions. The left outer shell is sleeved on the left inner shell and fastened to the protrusions through the fastening holes. The right outer shell is sleeved on the right inner shell and fastened to the protrusions through the fastening holes.

9. The AC contactor construction based on housing optimization according to claim 5, characterized in that: The left and right inner shells are provided with multiple protrusions with inclined surfaces on their upper and lower sides. The left and right outer shells are provided with a corresponding number of fastening holes corresponding to the protrusions. The left outer shell is sleeved on the left inner shell and fastened to the protrusions through the fastening holes. The right outer shell is sleeved on the right inner shell and fastened to the protrusions through the fastening holes.

Images