Built-in hidden contact structure

Abstract

The utility model relates to the technical field of alternating current contactors, in particular to a built-in hidden contact structure, which comprises a shell, a hidden mechanism is arranged in the shell and comprises a movable seat, a slot is arranged at the right end of the movable seat, and a contact piece is fixedly adhered to the top of the movable seat through glue. Contacts are symmetrically welded and fixed to the positions, close to the left side and the right side, of the top of the contact piece, a movable rod is fixed to the top of the contact piece through glue in a bonding mode, and the top end of the movable rod penetrates through the top of the top cover and is in sliding connection with the top cover. The bottom of the spring is fixedly connected with the top of the shell. According to the built-in hidden contact structure, the device can hide the contact in the shell through the arrangement of the hiding mechanism, the contact is prevented from being damaged due to collision, the service life of the contact is prolonged, the device can conveniently limit the position of the movable seat through the arrangement of the limiting mechanism, and therefore the positions of the contact piece and the contact are limited.

Description

Technical Field

[0001] The utility model relates to the technical field of AC contactors, in particular to a built-in hidden contact structure. Background Art

[0002] A contact mechanism is provided inside the AC contactor, and the contact mechanism includes contact pieces. In order to enable the contact mechanism to have good contact, a columnar contact is connected to the end of the contact piece, and the columnar contact is generally welded to the contact piece by welding.

[0003] The publication number is CN218241721U, which discloses an AC contactor contact structure, including a contact piece, mounting holes are processed on both sides of the contact piece, contacts are connected to the mounting holes, and the upper end of the contact piece extends out of the mounting hole of the contact piece; bending plates with arc-shaped tails are bent on both sides of the contact piece, the bending plates fit the extended ends of the contacts, plug welding holes are processed on the bending plates, and the contacts are fixed to the bending plates by plug welding. Compared with the prior art, the utility model discloses an AC contactor contact structure, wherein bending plates are provided on both sides of the contact piece, welding holes are opened on the bending plates and welded to the contacts, thereby reducing the impact on the contact piece body and avoiding bending and deformation of the contact piece. At the same time, the bending plates press the contacts tightly, so that the contacts have good impact resistance.

[0004] Although this device can reduce the impact on the contact body and prevent the contact from bending and deformation, and the bending plate presses the contact to make the contact have good impact resistance, the contact of this device does not have a hidden function and is easily damaged by collision, which reduces the service life of the contact. In view of this, we propose a built-in hidden contact structure. Utility Model Content

[0005] The purpose of the utility model is to provide a built-in hidden contact structure to solve the problems raised in the above background technology.

[0006] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0007] A built-in hidden contact structure comprises a shell, a hidden mechanism is arranged in the shell, the hidden mechanism comprises a moving seat, a slot is opened at the right end of the moving seat, a contact piece is fixed to the top of the moving seat by glue, contacts are symmetrically welded and fixed to the top of the contact piece near the left and right sides, a moving rod is fixed to the top of the contact piece by glue, the top of the moving rod passes through the top of the top cover and is slidably connected to the top cover, the top of the moving rod is fixedly connected to a limiting disk by bolts, a spring is arranged on the circumferential outer wall of the moving rod, and the bottom of the spring is fixedly connected to the top of the shell.

[0008] Preferably, a wire opening is provided at the bottom of the shell, a top cover is fixedly connected to the top of the shell by bolts, and through holes are symmetrically provided at positions near left and right sides of the top of the top cover.

[0009] Preferably, mounting plates are symmetrically welded and fixed at the left and right ends of the housing, and threaded holes are symmetrically opened at the top of the mounting plate near the front and rear sides.

[0010] Preferably, the left and right side surfaces of the movable seat are respectively fitted with the left and right side surfaces of the inner wall of the shell, and the bottom of the inner wall of the shell near the left and right sides is symmetrically fixedly connected to the limiting cylinder by bolts.

[0011] Preferably, a sliding sheet is slidably connected to the inner wall of the limiting cylinder, a connecting rod is fixedly connected to the top of the sliding sheet by bolts, and a top end of the connecting rod passes through the top of the limiting cylinder and is fixedly connected to the bottom of the moving seat by bolts.

[0012] Preferably, a limiting mechanism is provided on the right side surface of the shell, and the limiting mechanism includes a spring box, and the left end of the spring box is fixedly connected to the right side surface of the shell by bolts.

[0013] Preferably, a slider is slidably connected to the inner wall of the spring box, and an insertion rod is fixedly connected to the left surface of the slider by bolts. The left end of the insertion rod passes through the left end of the spring box and the right end of the shell in sequence and is plugged into the inner wall of the slot.

[0014] Preferably, a pull rod is fixedly connected to the right side surface of the slider by bolts, the right end of the pull rod passes through the right end of the spring box and is welded and fixed with a pull ring, a limit spring is provided on the circumferential outer wall of the pull rod, and the limit spring is located in the spring box.

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

[0016] 1. The built-in hidden contact structure can hide the contact in the housing by setting a hiding mechanism, so as to avoid damage due to collision, thereby improving the service life of the contact;

[0017] 2. The built-in hidden contact structure can conveniently limit the position of the movable seat by setting a limiting mechanism, thereby limiting the position of the contact piece and the contact. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0019] Figure 2 It is a cross-sectional structural schematic diagram of the utility model;

[0020] Figure 3 It is a structural schematic diagram of the hidden mechanism in the utility model;

[0021] Figure 4 It is a structural schematic diagram of the limiting mechanism in the utility model.

[0022] The meaning of each title in the figure is:

[0023] 1. Shell; 11. Wire port; 12. Top cover; 13. Through hole; 14. Mounting plate; 15. Threaded hole;

[0024] 2. Hidden mechanism; 21. Moving seat; 22. Slot; 23. Contact piece; 24. Contact; 25. Moving rod; 26. Limiting plate; 27. Spring; 28. Limiting cylinder; 29. ​​Sliding piece; 291. Connecting rod;

[0025] 3. Limiting mechanism; 31. Spring box; 32. Sliding block; 33. Inserting rod; 34. Pull rod; 35. Pull ring; 36. Limiting spring. DETAILED DESCRIPTION

[0026] 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 in 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.

[0027] See also Figure 1-Figure 4 , the utility model provides a technical solution:

[0028] A built-in hidden contact structure includes a shell 1, a wire opening 11 is provided at the bottom of the shell 1 for introducing the wire into the shell 1 and connecting it to a contact piece 23, a top cover 12 is fixedly connected to the top of the shell 1 by bolts, and through holes 13 are symmetrically provided at the top of the top cover 12 near the left and right sides for leading the contact 24 out of the shell 1.

[0029] Specifically, mounting plates 14 are symmetrically welded and fixed at the left and right ends of the housing 1 , and threaded holes 15 are symmetrically provided at the top of the mounting plate 14 near the front and rear sides to facilitate installation of the device at a designated position.

[0030] As a preferred embodiment of the present invention, a hidden mechanism 2 is provided in the outer shell 1, and the hidden mechanism 2 includes a movable seat 21. The left and right side surfaces of the movable seat 21 are respectively fitted with the left and right side surfaces of the inner wall of the outer shell 1. A slot 22 is provided at the right end of the movable seat 21 for cooperating with the insertion rod 33 to limit the position of the movable seat 21.

[0031] Specifically, a contact piece 23 is fixed on the top of the movable seat 21 by glue, and is used to install the contact 24. The contacts 24 are symmetrically welded and fixed at positions near the left and right sides of the top of the contact piece 23.

[0032] Specifically, a moving rod 25 is fixed to the top of the contact piece 23 by glue, and the top end of the moving rod 25 passes through the top of the top cover 12 and is slidably connected to the top cover 12 to drive the contact piece 23 to move.

[0033] Specifically, the top of the moving rod 25 is fixedly connected to the limit plate 26 by bolts, a spring 27 is provided on the circumferential outer wall of the moving rod 25 , and the bottom of the spring 27 is fixedly connected to the top of the housing 1 to limit the position of the limit plate 26 .

[0034] Specifically, the bottom of the inner wall of the housing 1 near the left and right sides is symmetrically fixedly connected with a limiting cylinder 28 by bolts, and the inner wall of the limiting cylinder 28 is slidably connected with a sliding sheet 29 to limit the moving direction of the connecting rod 291.

[0035] Specifically, the top of the sliding sheet 29 is fixedly connected to a connecting rod 291 by bolts, and the top of the connecting rod 291 passes through the top of the limiting cylinder 28 and is fixedly connected to the bottom of the moving seat 21 by bolts to limit the moving direction of the moving seat 21.

[0036] Furthermore, a limiting mechanism 3 is provided on the right side surface of the housing 1 , and the limiting mechanism 3 includes a spring box 31 , and the left end of the spring box 31 is fixedly connected to the right side surface of the housing 1 by bolts to limit the moving direction of the slider 32 .

[0037] Specifically, a slider 32 is slidably connected to the inner wall of the spring box 31, and an insertion rod 33 is fixedly connected to the left surface of the slider 32 by bolts. The left end of the insertion rod 33 passes through the left end of the spring box 31 and the right end of the shell 1 in sequence and is plugged into the inner wall of the slot 22 to cooperate with the slot 22 to limit the position of the movable seat 21, thereby limiting the position of the contact piece 23 and the contact 24.

[0038] It should be added that a pull rod 34 is fixedly connected to the right surface of the slider 32 by bolts, and the right end of the pull rod 34 passes through the right end of the spring box 31 and is welded and fixed with a pull ring 35 to drive the pull rod 34 to move.

[0039] Specifically, a limit spring 36 is provided on the circumferential outer wall of the pull rod 34 to limit the position of the slider 32 . The limit spring 36 is located in the spring box 31 .

[0040] It is worth noting that the structures and working principles of the contact pieces 23 and the contacts 24 involved in this embodiment are well known to those skilled in the art and will not be elaborated herein.

[0041] In the specific use process, when the contact 24 needs to be hidden, the user first pulls the pull ring 35 to the right, thereby driving the pull rod 34 to move to the right, thereby driving the slider 32 to move to the right, and thereby driving the insertion rod 33 to move to the right. In this process, the slider 32 compresses the limit spring 36;

[0042] Until the limit spring 36 is compressed to the shortest length, the limit plate 26 is moved downward, thereby driving the moving rod 25 to move downward, thereby driving the contact piece 23 to move downward, thereby driving the two contacts 24 to move downward;

[0043] In this process, the contact piece 23 drives the moving seat 21 to move downward, thereby driving the two connecting rods 291 to move downward, thereby driving the two sliding pieces 29 to move downward;

[0044] Until the bottom of the movable seat 21 is respectively in contact with the tops of the two limit cylinders 28, the two contacts 24 are both received in the housing 1, the pull ring 35 is released, and the limit spring 36 begins to restore its initial length, thereby driving the slider 32 to move leftward, thereby driving the insertion rod 33 to move leftward;

[0045] Until the limit spring 36 recovers its initial length, the insertion rod 33 is plugged into the inner wall of the slot 22 , at which time the position of the movable seat 21 is limited, so that the positions of the contact piece 23 and the contact 24 are limited, and the contact 24 is hidden in the housing 1 .

[0046] The above shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only preferred examples of the utility model and are not used to limit the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection of the utility model is defined by the attached claims and their equivalents.

Claims

1. A built-in hidden contact structure, comprising a housing (1), characterized in that: A hidden mechanism (2) is provided in the shell (1), and the hidden mechanism (2) comprises a movable seat (21), a slot (22) is provided at the right end of the movable seat (21), a contact piece (23) is fixed to the top of the movable seat (21) by glue, contacts (24) are symmetrically welded and fixed to the top of the contact piece (23) near the left and right sides, a movable rod (25) is fixed to the top of the contact piece (23) by glue, the top of the movable rod (25) passes through the top of the top cover (12) and is slidably connected to the top cover (12), the top of the movable rod (25) is fixedly connected to a limiting disk (26) by bolts, a spring (27) is provided on the circumferential outer wall of the movable rod (25), and the bottom of the spring (27) is fixedly connected to the top of the shell (1).

2. The built-in hidden contact structure according to claim 1, characterized in that: The bottom of the housing (1) is provided with a wire opening (11), the top of the housing (1) is fixedly connected with a top cover (12) by means of bolts, and the top of the top cover (12) is symmetrically provided with through holes (13) near the left and right sides.

3. The built-in hidden contact structure according to claim 2, characterized in that: The left and right ends of the housing (1) are symmetrically welded with mounting plates (14), and the top of the mounting plate (14) is symmetrically provided with threaded holes (15) near the front and rear sides.

4. The built-in hidden contact structure according to claim 1, characterized in that: The left and right surfaces of the movable seat (21) are respectively fitted with the left and right surfaces of the inner wall of the outer shell (1), and the bottom of the inner wall of the outer shell (1) near the left and right sides is symmetrically fixedly connected to the limiting cylinder (28) by bolts.

5. The built-in hidden contact structure according to claim 4, characterized in that: The inner wall of the limiting cylinder (28) is slidably connected to a sliding sheet (29), the top of the sliding sheet (29) is fixedly connected to a connecting rod (291) via bolts, and the top of the connecting rod (291) passes through the top of the limiting cylinder (28) and is fixedly connected to the bottom of the moving seat (21) via bolts.

6. The built-in hidden contact structure according to claim 1, characterized in that: A limiting mechanism (3) is provided on the right side surface of the housing (1), and the limiting mechanism (3) comprises a spring box (31). The left end of the spring box (31) is fixedly connected to the right side surface of the housing (1) by means of bolts.

7. The built-in hidden contact structure according to claim 6, characterized in that: The inner wall of the spring box (31) is slidably connected to a slider (32), and the left surface of the slider (32) is fixedly connected to an insertion rod (33) by means of bolts. The left end of the insertion rod (33) sequentially penetrates the left end of the spring box (31) and the right end of the housing (1) and is plugged into the inner wall of the slot (22).

8. The built-in hidden contact structure according to claim 7, characterized in that: The right side surface of the slider (32) is fixedly connected to a pull rod (34) by bolts. The right end of the pull rod (34) passes through the right end of the spring box (31) and is welded and fixed with a pull ring (35). A limit spring (36) is provided on the circumferential outer wall of the pull rod (34). The limit spring (36) is located in the spring box (31).

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