CN220065574U - Terminal cover and ac contactor - Google Patents

Abstract

The utility model belongs to the technical field of piezoelectric devices, and discloses a terminal cover and an alternating current contactor. The terminal cover comprises a first split cover, a second split cover and a rotation locking assembly, wherein the first split cover and the second split cover are buckled to form a protection cavity for protecting the incoming line terminal or the outgoing line terminal, the first split cover and the second split cover are provided with a through hole and a clamping hole, and the rotation locking assembly can penetrate through the through hole to be locked or unlocked with the clamping hole so as to connect or detach the first split cover and the second split cover. According to the utility model, the rotation locking assembly positioned on the terminal cover is rotated, so that the first split cover and the second split cover can be quickly installed, the terminal cover is convenient and quick to install, the terminal cover can be repeatedly disassembled and assembled, and the service life of the terminal cover is prolonged.

Description

Terminal cover and ac contactor

Technical Field

The utility model relates to the technical field of piezoelectric devices, in particular to a terminal cover and an alternating current contactor.

Background

The AC contactor is a low-voltage control electric appliance, is widely used in electric dragging and automatic control systems, and is used as an executive component for switching on and off lines or frequently controlling equipment such as a motor and the like to run. At present, a protective cover assembly is arranged at a main loop inlet and outlet terminal of a large-shell alternating-current contactor and is used for protecting exposed copper bars and avoiding potential safety hazards of the alternating-current contactor.

However, when the existing protective cover assembly is assembled together by adopting self-tapping screws, the screws and screw holes are easy to fail due to multiple grinding in when the protective cover assembly is required to be assembled and disassembled for multiple times, so that the connection firmness is reduced, the two protective covers are loose, and the protective cover assembly is seriously fallen.

For this reason, it is necessary to provide a terminal cover and an ac contactor to solve the above-described problems.

Disclosure of Invention

The utility model aims to provide a terminal cover and an alternating current contactor, wherein the terminal cover is convenient and quick to install and can be repeatedly disassembled and assembled.

To achieve the purpose, the utility model adopts the following technical scheme:

the terminal cover comprises a first split cover, a second split cover and a rotation locking assembly, wherein the first split cover is buckled with the second split cover to form a protection cavity for accommodating an incoming line terminal or an outgoing line terminal, the first split cover and the second split cover are provided with through holes and clamping holes, and the rotation locking assembly can penetrate through the through holes and is locked or unlocked with the clamping holes so as to connect or detach the first split cover and the second split cover.

As the alternative scheme of terminal cover, rotate locking subassembly including rotatory screw and elasticity piece that resets, rotatory screw is including having the limit head, first section and the second section of slot, the one end of first section with the second section links to each other perpendicularly, the limit head with the other end of first section is connected, elasticity piece that resets is overlapped and is located on the first section, elasticity piece that resets's one end stop in the limit head, elasticity piece that resets's the other end stop in the outer wall of terminal cover, the second section can with draw-in hole locking or unblock.

As an alternative to the terminal cover, the slot includes a first groove and a second groove that are crisscrossed, and the direction in which the first groove extends is parallel to the direction in which the second section extends.

As an alternative scheme of the terminal cover, the outer wall surface of the first split cover or the second split cover is provided with an indicating structure, and the indicating structure comprises a locking indicating position for indicating connection of the first split cover and the second split cover and an unlocking indicating position for indicating unlocking of the first split cover and the second split cover.

As an alternative scheme of the terminal cover, a first separation section is arranged in the first split cover, a second separation section is arranged in the second split cover, the first separation section is provided with the through hole or the clamping hole, and the second separation section is correspondingly provided with the clamping hole or the through hole.

As an alternative scheme of the terminal cover, the terminal cover further comprises a guide assembly, the guide assembly comprises a guide column and a guide groove, the guide column or the guide groove is arranged on the first separation section, the guide groove or the guide column is correspondingly arranged on the second separation section, and the guide column is inserted into the guide groove.

As an alternative scheme of the terminal cover, the terminal cover further comprises a limiting fixing assembly, the limiting fixing assembly comprises a limiting protrusion and a limiting groove, the first separation section is provided with the limiting protrusion or the limiting groove, the second separation section is correspondingly provided with the limiting groove or the limiting protrusion, and the limiting protrusion can be inserted into the limiting groove.

As an alternative scheme of the terminal cover, two opposite side walls of the first split cover are provided with a first dislocation step or a second dislocation step, two opposite side walls of the second split cover are correspondingly provided with the second dislocation step or the first dislocation step, and the first dislocation step and the second dislocation step can be coupled.

As an alternative to the terminal cover, the first split cover and the second split cover are both provided with a heat radiation hole and a knock-out plate, and the knock-out plate is detachably connected with the first split cover and the second split cover, respectively.

The alternating current contactor is characterized by comprising a contactor body and the terminal cover, wherein the contactor body is provided with an incoming terminal and an outgoing terminal, and the incoming terminal and the outgoing terminal are respectively arranged in a protection cavity of the terminal cover.

Compared with the prior art, the utility model has the beneficial effects that:

according to the terminal cover provided by the utility model, the first split cover and the second split cover can be mutually buckled to form the protection cavity for accommodating the incoming terminal or the outgoing terminal, so that the wiring terminal of the alternating current contactor can be protected, the wiring terminal is prevented from leaking out, and the safety is improved; through holes and clamping holes are formed in the first split cover and the second split cover, and the rotation locking assembly can conveniently penetrate through the through hole in one split cover and be locked with the clamping hole in the other split cover through the through hole and the clamping hole, so that the connection firmness of the first split cover and the second split cover is improved; through rotatory rotation locking subassembly that is located the terminal cover, can realize the quick installation of first components of a whole that can function independently cover and second components of a whole that can function independently cover, make terminal cover simple to operate swift to can dismantle repeatedly, prolong the life of terminal cover.

According to the alternating current contactor provided by the utility model, the incoming line terminal and the outgoing line terminal are arranged on the contactor body, the incoming line terminal and the outgoing line terminal are respectively arranged in the protection cavity of the terminal cover, the rotation locking assembly is inserted into the split cover and rotated, so that the first split cover and the second split cover can be quickly installed, the first split cover and the second split cover can be repeatedly disassembled and assembled, and the service life is prolonged.

Drawings

FIG. 1 is a schematic view of a terminal cover according to an embodiment of the present utility model;

fig. 2 is an exploded view of a terminal cover in an embodiment of the present utility model;

FIG. 3 is a schematic view of a rotational locking assembly according to an embodiment of the present utility model;

FIG. 4 is a schematic view of the structure of a first split cover according to an embodiment of the present utility model;

FIG. 5 is a schematic view of a second split cover according to an embodiment of the present utility model;

FIG. 6 is a schematic view of a terminal cover mounted to a contactor body according to an embodiment of the present utility model;

FIG. 7 is a schematic view showing a structure in which a second split cover is installed at the lower end of an AC contactor according to an embodiment of the present utility model;

fig. 8 is an exploded view of the contactor body and the second split cover in an embodiment of the utility model.

In the figure:

100. a terminal cover; 200. a contactor body; 201. a second hooking portion;

1. a first split cover; 2. a second split cover; 3. a rotational locking assembly; 4. a through hole; 5. a clamping hole; 6. an indication structure; 7. a heat radiation hole; 8. a knock-out plate; 9. a first hooking portion;

11. a first separation section; 12. a limit groove; 13. a guide post; 15. a limit protrusion; 17. a first dislocating step; 18. a third dislocating step;

21. a second partition section; 22. a guide groove; 24. a limit groove; 26. a second dislocating step; 27. a fourth dislocating step;

31. rotating the screw; 311. a positioning head; 312. a first section; 313. a second section; 314. a slot; 3141. a first groove; 3142. a second groove; 32. an elastic reset piece;

61. a lock indication bit; 62. an unlock indication bit.

Detailed Description

The utility model is described in further detail below with reference to the drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the utility model and are not limiting thereof. It should be further noted that, for convenience of description, only some, but not all of the structures related to the present utility model are shown in the drawings.

In the description of the present utility model, unless explicitly stated and limited otherwise, the terms "connected," "connected," and "fixed" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.

In the present utility model, unless expressly stated or limited otherwise, a first feature "above" or "below" a second feature may include both the first and second features being in direct contact, as well as the first and second features not being in direct contact but being in contact with each other through additional features therebetween. Moreover, a first feature being "above," "over" and "on" a second feature includes the first feature being directly above and obliquely above the second feature, or simply indicating that the first feature is higher in level than the second feature. The first feature being "under", "below" and "beneath" the second feature includes the first feature being directly under and obliquely below the second feature, or simply means that the first feature is less level than the second feature.

In the description of the present embodiment, the terms "upper", "lower", "right", etc. orientation or positional relationship are based on the orientation or positional relationship shown in the drawings, and are merely for convenience of description and simplicity of operation, and do not indicate or imply that the apparatus or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the utility model. Furthermore, the terms "first," "second," and the like, are used merely for distinguishing between descriptions and not for distinguishing between them.

In order to make the terminal cover convenient and quick to install, and capable of being repeatedly disassembled and assembled, and to prolong the service life of the terminal cover, the embodiment provides a terminal cover and an ac contactor, and details of the embodiment are described in detail below with reference to fig. 1 to 8.

In this embodiment, the terminal cover 100 includes a first split cover 1, a second split cover 2 and a rotation locking assembly 3, where the first split cover 1 and the second split cover 2 are buckled to form a protection cavity for accommodating the incoming or outgoing terminals, the first split cover 1 and the second split cover 2 are provided with a through hole 4 and a clamping hole 5, and the rotation locking assembly 3 can pass through the through hole 4 to be locked or unlocked with the clamping hole 5.

According to the terminal cover 100 provided by the utility model, the first split cover 1 and the second split cover 2 can be mutually buckled to form the protection cavity for accommodating the incoming line terminal or the outgoing line terminal, so that the wiring terminal of the alternating current contactor can be protected, the leakage of the wiring terminal is avoided, and the safety is improved; through holes 4 and clamping holes 5 are formed in the first split cover 1 and the second split cover 2, and through the through holes 4 and the clamping holes 5, the rotation locking assembly 3 is conveniently locked with the clamping holes 5 through the through holes 4 in the split covers, so that the connection firmness of the first split cover 1 and the second split cover 2 is improved; through rotating the rotation locking component 3 on the terminal cover 100, the quick installation of the first split cover 1 and the second split cover 2 can be realized, so that the terminal cover 100 is convenient and quick to install, can be repeatedly disassembled and assembled, and the service life of the terminal cover 100 is prolonged.

Further, the rotation locking assembly 3 includes a rotation screw 31 and an elastic restoring member 32, the rotation screw 31 includes a limiting head 311 with a slot 314, a first section 312 and a second section 313, one end of the first section 312 is vertically connected with the second section 313, the limiting head 311 is connected with the other end of the first section 312, the elastic restoring member 32 is sleeved on the first section 312, one end of the elastic restoring member 32 is stopped at the limiting head 311, the other end of the elastic restoring member 32 is stopped at the outer wall surface of the terminal cover 100, and the second section 313 can be selectively locked or unlocked with the clamping hole 5. The rotary screw 31 can be rotated in the forward or reverse direction by inserting a straight screwdriver or a cross screwdriver into the insertion groove 314 of the positioning head 311. Because the included angle between the first section 312 and the second section 313 is a right angle, the second section 313 can be rotated to the inner wall of the clamping hole 5 by rotating the first section 312, and the pressure of the second section 313 to the inner wall surface is increased under the action of the elastic reset piece 32, so that the connection firmness of the first split cover 1 and the second split cover 2 is improved.

Further, a limiting groove 12 is formed on the outer wall surface of the terminal cover 100, the limiting groove 12 is vertically communicated with the through hole 4, the notch of the limiting groove 12 is larger than the inner diameter of the through hole 4, and after the rotation locking assembly 3 is inserted into the split cover, one end of the elastic reset piece 32 is elastically pressed against the bottom of the limiting groove 12.

Specifically, the slot 314 includes a first groove 3141 and a second groove 3142 that are crisscrossed, and the direction in which the first groove 3141 extends is parallel to the direction in which the second section 313 extends. Illustratively, the length of the first recess 3141 is greater than the length of the second recess 3142, which facilitates both insertion of the in-line driver into the slot 314 and insertion of the cross driver into the slot 314, expanding the applicability of the rotary screw 31.

Further, the outer wall surface of the first split cover 1 or the second split cover 2 is provided with an indicating structure 6, and the indicating structure 6 includes a locking indicating position 61 for indicating connection of the first split cover 1 and the second split cover 2 and an unlocking indicating position 62 for indicating unlocking of the first split cover 1 and the second split cover 2. Specifically, the lock indication bits 61 and the unlock indication bits 62 are circumferentially spaced apart from the periphery of the through hole 4.

Illustratively, a first partition 11 is disposed in the first split cover 1, a second partition 21 is disposed in the second split cover 2, the first partition 11 is provided with a through hole 4 or a clamping hole 5, and the second partition 21 is correspondingly provided with a clamping hole 5 or a through hole 4. In this embodiment, the first split cover 1 is provided with the through hole 4, the second partition 21 is provided with the clamping hole 5, one end of the elastic restoring member 32 is stopped at the limiting head 311, the other end of the elastic restoring member 32 is stopped at the outer wall surface of the first split cover 1, and the second section 313 of the rotating screw 31 can pass through the through hole 4 of the first split cover 1 to be locked or unlocked with the clamping hole 5 of the second split cover 2. By adding the first and second partition sections 11 and 21, the mutual influence between the respective connection terminals is eliminated. Wherein, the first split cover 1 and the second split cover 2 are made of insulating materials.

Further, the terminal cover 100 further includes a guiding assembly, the guiding assembly includes a guiding post 13 and a guiding slot 22, the guiding post 13 or the guiding slot 22 is disposed on the first partition section 11, the guiding slot 22 or the guiding post 13 is disposed on the second partition section 21 correspondingly, and the guiding post 13 can be inserted into the guiding slot 22. Through addding the direction subassembly, be convenient for first components of a whole that can function independently cover 1 and the lock of second components of a whole that can function independently cover 2, improve assembly precision.

In some application scenarios, the split cover may be provided with a plurality of separation sections, on which the guide posts 13 and the guide slots 22 are alternately arranged. For example: the first separation section 11 is provided with a first guide column, the second separation section 21 is provided with a first guide groove, and the first guide column can be inserted into the second separation section along the first guide groove; the first partition 11 is provided with a second guide groove, the second partition 21 is provided with a second guide column, and the second guide column can be inserted into the first partition 11 along the second guide groove.

Further, the terminal cover 100 further includes a limiting fixing component, the limiting fixing component includes a limiting protrusion 15 and a limiting groove 24, the first partition section 11 is provided with the limiting protrusion 15 or the limiting groove 24, the second partition section 21 is correspondingly provided with the limiting groove 24 or the limiting protrusion 15, and the limiting protrusion 15 can be inserted into the limiting groove 24. Through pressing close to at terminal cover 100 rear portion and adding spacing fixed subassembly with contactor cooperation side, prevent that two components of a whole that can function independently covers from rocking about the lock back, also provide reliable guarantee for the creepage distance of product.

In other application scenarios, the split cover may be provided with a plurality of separation sections, and the separation sections are alternately provided with the limiting protrusions 15 and the limiting grooves 24. For example: the first separation section 11 is provided with a first limit protrusion, the second separation section 21 is provided with a first limit groove, and the first limit protrusion can be inserted into the first limit groove; the first separation section 11 is provided with a second limiting groove, the second separation section 21 is provided with a second limiting protrusion, and the second limiting protrusion can be inserted into the second limiting groove.

Further, the opposite side walls of the first split cover 1 are provided with a first dislocation step 17 or a second dislocation step 26, the opposite side walls of the second split cover 2 are correspondingly provided with a second dislocation step 26 or the first dislocation step 17, and the first dislocation step 17 and the second dislocation step 26 can be coupled. Through mutual spacing between the dislocation steps, dislocation does not take place after making first split cover 1 and the buckling of second split cover 2, improves the assembly precision and the connection steadiness of first split cover 1 and second split cover 2.

Further, the first partition section 11 is provided with a third dislocation step 18 or a fourth dislocation step 27, the second partition section 21 is correspondingly provided with the fourth dislocation step 27 or the third dislocation step 18, and the third dislocation step 18 and the fourth dislocation step 27 can be coupled, so that the assembly precision and the connection stability of the first split cover 1 and the second split cover 2 are improved.

Further, the first split cover 1 and the second split cover 2 are provided with a heat radiation hole 7 and a knock-out plate 8, and the knock-out plate 8 is detachably connected with the first split cover 1 and the second split cover 2, respectively. When wiring is required, the knock-out plate 8 can be knocked out, facilitating the entry of external wiring into the terminal cover 100. By additionally providing the heat radiation holes 7, the temperature of the wiring terminal of the contactor body 200 is conveniently reduced;

the embodiment also provides an ac contactor, which includes a contactor body 200 and the above-mentioned terminal cover 100, where the contactor body 200 is provided with an incoming terminal and an outgoing terminal, and the incoming terminal and the outgoing terminal are respectively disposed in the protection cavity of the terminal cover 100. The first split cover 1 and the second split cover 2 are buckled and arranged at the terminal of the contactor body 200, and the rotation locking assembly 3 passes through the first split cover 1 and the second split cover 2 to be locked. In the present embodiment, the first hooking portion 9 is provided on the outer wall surfaces of the first and second split covers 1 and 2, the second hooking portion 201 is provided on the outer wall surface of the contactor body 200, and the terminal cover 100 is attached to the contactor body 200 by the first and second hooking portions 9 and 201.

To sum up, 1) the spacing fixed subassembly can effectually guarantee the location condition of terminal cover 100 cooperation rear side, guarantees that product stable in structure reduces the wearing and tearing of terminal cover 100 to increase terminal cover 100's life.

2) The guide assembly can solve the problem that the two split covers are difficult to align due to no guide when being installed, and simultaneously, the fastening force is provided after the terminal cover 100 is locked through interference fit due to the fact that the slotted holes of the guide grooves are smaller in design.

3) The rotation locking assembly 3 is matched with the through hole 4 and the clamping hole 5, so that the rotation screw 31 can rotate 90 degrees clockwise within the range of 90 degrees, the rotation screw 31 is positioned at an 'I' (locking indicating position 61), the terminal cover 100 is locked, the rotation screw 31 is rotated 90 degrees anticlockwise, the rotation screw 31 is positioned at an 'O' (unlocking indicating position 62), and the terminal cover 100 can be detached.

4) As shown in fig. 3, a rotation lock assembly 3 of the present utility model is shown. The rotation locking component 3 is formed by combining a spring and an L-shaped screw, the L-shaped foot design of the screw and the inner diameter size of the spring ensure that the spring cannot be easily separated through ingenious size design, and the rotation locking component is convenient for customers to use. The direction of the straight line-shaped groove (the first groove 3141) of the screw is consistent with that of the second section 313 of the L-shaped pin, and the direction of the straight line-shaped groove is matched with the terminal cover 100 to give the user an installation and disassembly indication after the assembly, and the corresponding position of the straight line-shaped groove is the current opening or locking position of the L-shaped pin.

5) The indication structure 6 of the rotary screw 31 can effectively remind the user whether the terminal cover 100 is locked or not at the current position of the rotary screw 31. A small raised slot is also designed in the "O" position to facilitate indicating that the L foot of the screw 31 is beginning to be installed in this position.

It is to be understood that the above examples of the present utility model are provided for clarity of illustration only and are not limiting of the embodiments of the present utility model. Various obvious changes, rearrangements and substitutions can be made by those skilled in the art without departing from the scope of the utility model. It is not necessary here nor is it exhaustive of all embodiments. Any modification, equivalent replacement, improvement, etc. which come within the spirit and principles of the utility model are desired to be protected by the following claims.

Claims (10)

1. The terminal cover is characterized by comprising a first split cover (1), a second split cover (2) and a rotation locking assembly (3), wherein the first split cover (1) and the second split cover (2) are buckled to form a protection cavity for accommodating a wire inlet terminal or a wire outlet terminal, the first split cover (1) and the second split cover (2) are provided with a through hole (4) and a clamping hole (5), and the rotation locking assembly (3) can penetrate through the through hole (4) and the clamping hole (5) to be locked or unlocked to connect or detach the first split cover (1) and the second split cover (2).

2. The terminal cover according to claim 1, wherein the rotation locking assembly (3) comprises a rotation screw (31) and an elastic reset piece (32), the rotation screw (31) comprises a limiting head (311) with a slot (314), a first section (312) and a second section (313), one end of the first section (312) is vertically connected with the second section (313), the limiting head (311) is connected with the other end of the first section (312), the elastic reset piece (32) is sleeved on the first section (312), one end of the elastic reset piece (32) is stopped on the limiting head (311), the other end of the elastic reset piece (32) is stopped on the outer wall surface of the terminal cover, and the second section (313) can be locked or unlocked with the clamping hole (5).

3. The terminal cover according to claim 2, wherein the slot (314) comprises a crisscrossed first groove (3141) and a second groove (3142), and the direction in which the first groove (3141) extends is parallel to the direction in which the second section (313) extends.

4. Terminal cover according to claim 2, characterized in that the outer wall surface of the first split cover (1) or the second split cover (2) is provided with an indication structure (6), the indication structure (6) comprising a locking indication bit (61) for indicating the connection of the first split cover (1) and the second split cover (2) and an unlocking indication bit (62) for indicating the unlocking of the first split cover (1) and the second split cover (2).

5. Terminal cover according to claim 1, characterized in that a first separation section (11) is arranged in the first split cover (1), a second separation section (21) is arranged in the second split cover (2), the first separation section (11) is provided with the through hole (4) or the clamping hole (5), and the second separation section (21) is correspondingly provided with the clamping hole (5) or the through hole (4).

6. The terminal cover according to claim 5, further comprising a guide assembly, wherein the guide assembly comprises a guide post (13) and a guide groove (22), the guide post (13) or the guide groove (22) is arranged on the first separation section (11), the guide groove (22) or the guide post (13) is correspondingly arranged on the second separation section (21), and the guide post (13) is inserted into the guide groove (22).

7. The terminal cover according to claim 5, further comprising a limit fixing assembly, wherein the limit fixing assembly comprises a limit protrusion (15) and a limit groove (24), the limit protrusion (15) or the limit groove (24) is arranged on the first separation section (11), the limit groove (24) or the limit protrusion (15) is correspondingly arranged on the second separation section (21), and the limit protrusion (15) can be inserted into the limit groove (24).

8. The terminal cover according to claim 1, wherein a first dislocation step (17) or a second dislocation step (26) is provided on two opposite side walls of the first split cover (1), the second dislocation step (26) or the first dislocation step (17) is provided on two opposite side walls of the second split cover (2), and the first dislocation step (17) and the second dislocation step (26) can be coupled.

9. Terminal cover according to claim 1, characterized in that the first split cover (1) and the second split cover (2) are each provided with a heat dissipation hole (7) and a knock-out plate (8), the knock-out plates (8) being detachably connected with the first split cover (1) and the second split cover (2), respectively.

10. An ac contactor, comprising a contactor body (200) and a terminal cover according to any one of claims 1 to 9, wherein the contactor body (200) is provided with an incoming terminal and an outgoing terminal, and the incoming terminal and the outgoing terminal are respectively disposed in a protection cavity of the terminal cover.