Microswitch trigger mechanism, contactor auxiliary contact module and contactor

Abstract

The utility model discloses a microswitch trigger mechanism, a contactor auxiliary contact module and a contactor, comprising a contact support of the contactor and a trigger part which is rotatably connected to the contact support and is arranged corresponding to a swing rod of the microswitch, and the rotation axis of the trigger part is parallel to the rotation axis of the contact support. And an over-travel spring is connected between the contact support and the trigger part, so that the contact support can continue to move until the travel end point after driving the trigger part to act to trigger the microswitch. According to the utility model, the trigger part and the contact support are rotatably connected together instead of being slidably connected together, so that the trigger part can more smoothly act relative to the contact support through simple shaft hole matching.

Description

TECHNICAL FIELD

[0001] The utility model relates to contactor technical field, concretely relates to a microswitch trigger mechanism, contactor auxiliary contact module and contactor. BACKGROUND

[0002] As shown in a kind of existing contactor microswitch trigger mechanism, including contact support 1 and trigger component 2 of sliding connection on contact support 1, set between trigger component 2 and contact support 1 overtravel spring 3, when working, contact support 1 is moved along guide groove under the action of tension, in turn drive trigger component 2 press the swing bar of microswitch corresponding therewith until complete microswitch's break and make state switching, and then contact support 1 continues to move, overtravel spring 3 is compressed under force, so that contact support 1 can continue to move until the end of stroke. Figure 4 But the technical scheme of trigger component 2 is slidingly connected on contact support 1, the sliding fit precision between trigger component 2 and contact support 1 is required to be higher, otherwise it is easy to produce sliding jamming and other hidden troubles in turn cause module action force value to become larger, influence contactor action, serious time can also cause contactor and module to be unable to normally act. SUMMARY

[0003] In view of the deficiencies of prior art, the utility model provides a microswitch trigger mechanism, which utilizes a rotating connection structure to enable the trigger component to normally act relative to the contact support more stably, so as to ensure that the trigger component can accurately switch the state of the microswitch under the driving of the contact support.

[0004] To achieve the above object, the utility model is realized by the following technical scheme:

[0005] A microswitch trigger mechanism applied to a contactor, comprising a contact support of the contactor and a trigger component rotatably connected to the contact support and corresponding to a swing bar of a microswitch, the rotational axis of the trigger component is parallel to the rotational axis of the contact support, and an overtravel spring is connected between the contact support and the trigger component to enable the contact support to continue to act until the end of stroke after driving the trigger component to act and trigger the microswitch.

[0006] Further, the trigger component is formed with a rotating shaft portion at one end and a contact portion for contacting the swing bar of the microswitch at the other end.

[0007] Further, the trigger component is formed with two oppositely arranged elastic arms at the end away from the contact portion, and each of the two elastic arms is formed with a rotating shaft portion, and the trigger component is configured to be rotatably connected to the contact support through the rotating shaft portions on the two elastic arms.

[0008] Further, a trigger component mounting cavity is formed on the contact support, a rotating shaft part is arranged on the outer side of each of the two elastic arms, a rotating shaft mounting hole is formed on each of the two side walls of the trigger component mounting cavity, and the trigger component is elastically clamped into the corresponding rotating shaft mounting hole through the rotating shaft part on the two elastic arms, so that the trigger component is rotatably connected with the contact support.

[0009] Further, the trigger component mounting cavity is open towards one side of the micro switch.

[0010] Further, the over-travel spring is a compression spring connected between the trigger component and the contact support.

[0011] Further, a groove is formed on the back of the trigger component, one end of the over-travel spring is embedded in the groove of the trigger component, and the other end is pressed against the contact support.

[0012] Based on the same inventive concept, the utility model also provides a contactor auxiliary contact module applied to control low signal load, which comprises the micro switch trigger mechanism of any one of the above.

[0013] Based on the same inventive concept, the utility model also provides a contactor comprising the contactor auxiliary contact module.

[0014] The above technical scheme has the following advantages or beneficial effects:

[0015] In the micro switch trigger mechanism, the contactor auxiliary contact module and the contactor, the trigger component and the contact support are rotatably connected instead of being slidably connected, so that the trigger component can more smoothly move relative to the contact support through simple shaft hole cooperation. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 is a three-dimensional structure schematic diagram of the micro switch trigger mechanism of the utility model embodiment.

[0017] Figure 2 is another angle three-dimensional structure schematic diagram of the micro switch trigger mechanism of the utility model embodiment.

[0018] Figure 3 is a three-dimensional structure exploded schematic diagram of the micro switch trigger mechanism of the utility model embodiment.

[0019] Figure 4 is a three-dimensional structure schematic diagram of the micro switch trigger mechanism of the prior art.

[0020] LABEL EXPLANATION:

[0021] 1, contact support, 2, trigger component, 3, overtravel spring, 4, micro switch, 11, rotating shaft mounting hole, 21, rotating shaft part, 22, abutting part, 23, elastic arm, 24, groove, 41, swing lever. DETAILED DESCRIPTION

[0022] The utility model will be further described below in combination with the drawings and examples.

[0023] In the description of the utility model, it is understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer" and the like indicate the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the utility model and simplifying the description, and do not indicate or imply that the indicated device or element must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the utility model.

[0024] Please refer to the drawings Figure 1The utility model discloses a microswitch trigger mechanism, applied to contactor, including the contactor's contact support 1 and the rotation connection in contact support 1 and with the trigger component 2 of microswitch 4's swing pole 41 corresponding arrangement trigger component 2's rotation axis and contact support 1's rotation axis are parallel with each other, and contact support 1 is connected with trigger component 2 between the overtravel spring 3, to make contact support 1 still can continue to act until its stroke end after triggering microswitch 4 with driving trigger component 2 to act.

[0025] Please refer to the attached Figure 1Wherein, in one preferable embodiment, the trigger component 2 is formed with a rotating shaft part 21 at one end and a contact part 22 for triggering the swing lever 41 of the micro switch 4 at the other end. Preferably, the trigger component 2 is formed with two oppositely arranged elastic arms 23 at the end away from the contact part 22, and each of the two elastic arms 23 is formed with a rotating shaft part 21, and the trigger component 2 is configured to be rotatably connected together with the contact support 1 through the shaft hole fitting of the rotating shaft parts 21 on the two elastic arms 23. Further, the contact support 1 is formed with a trigger component mounting cavity, which is open towards the side of the micro switch 4, and each of the outer sides of the two elastic arms 23 is provided with a rotating shaft part 21, and each of the two side walls of the trigger component mounting cavity is formed with a rotating shaft mounting hole 11, and the trigger component 2 is rotatably connected together with the contact support 1 by elastically clamping the rotating shaft parts 21 on the two elastic arms 23 into the corresponding rotating shaft mounting holes 11. In this way, by virtue of the elastic deformation characteristics of the two elastic arms 23, the two elastic arms 23 can be clamped into the trigger component mounting cavity by being appropriately squeezed, and the two rotating shaft parts 21 can be embedded into the corresponding rotating shaft mounting holes 11, so that the installation can be quickly completed without the aid of other tools, and the assembly efficiency of the trigger component 2 and the contact support 1 can be improved.

[0026] Please refer to the accompanying drawings Figure 1 Wherein, in one preferable embodiment, the over-travel spring 3 is a compression spring connected between the trigger component 2 and the contact support 1. However, it should be understood by those skilled in the art that in other embodiments, the over-travel spring 3 can also be configured as a torsion spring structure, and is not limited to the specific embodiments disclosed in the present embodiment.

[0027] Please refer to the accompanying drawings Figure 1 Wherein, in one preferable embodiment, a recess 24 is formed in the back of the trigger component 2, and one end of the over-travel spring 3 is embedded in the recess 24 of the trigger component 2, and the other end is pressed against the contact support 1.

[0028] Please refer to the accompanying drawings Figure 1 One embodiment of the utility model also provides a contactor auxiliary contact module for controlling low signal load, which comprises the micro switch trigger mechanism described in any of the above.

[0029] Please refer to the accompanying drawings Figure 1 One embodiment of the utility model also provides a contactor comprising the contactor auxiliary contact module described above.

[0030] The above describes the embodiments only to illustrate the technical solutions of the present application, rather than limit them; although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that: it can still modify the technical solutions recorded in the foregoing embodiments, or make equivalent replacement for part of the technical features; and these modifications or replacements do not make the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present application, therefore, all other embodiments obtained by the ordinary skilled in the art without creative labor, belong to the protection scope of the present application.

Claims

1. A microswitch trigger mechanism for use in a contactor, characterized by: The contactor auxiliary contact module comprises a contact support (1) and a trigger component (2) rotatably connected to the contact support (1) and corresponding to a swing lever (41) of a micro switch (4), the rotation axis of the trigger component (2) is parallel to the rotation axis of the contact support (1), and an over-travel spring (3) is connected between the contact support (1) and the trigger component (2) to enable the contact support (1) to continue moving until the end of the stroke after driving the trigger component (2) to actuate the micro switch (4).

2. The microswitch trigger mechanism of claim 1, wherein: The trigger component (2) is formed with a rotation shaft portion (21) at one end and a contact portion (22) for contacting the swing lever (41) of the micro switch (4) at the other end.

3. The microswitch trigger mechanism of claim 2, wherein: The trigger component (2) is formed with two oppositely arranged elastic arms (23) at the end away from the contact portion (22), and each of the elastic arms (23) is formed with a rotation shaft portion (21), and the trigger component (2) is configured to be rotatably connected to the contact support (1) through the rotation shaft portions (21) on the elastic arms (23).

4. The microswitch trigger mechanism of claim 3, wherein: The contact support (1) is formed with a trigger component mounting cavity, and each of the outer sides of the elastic arms (23) is provided with a rotation shaft portion (21), and each of the two side walls of the trigger component mounting cavity is formed with a rotation shaft mounting hole (11), and the trigger component (2) is rotatably connected to the contact support (1) by being elastically clamped into the corresponding rotation shaft mounting hole (11) through the rotation shaft portions (21) on the elastic arms (23).

5. The microswitch trigger mechanism of claim 4, wherein: The side of the trigger component mounting cavity facing the micro switch (4) is open.

6. The microswitch trigger mechanism of claim 1, wherein: The over-travel spring (3) is a compression spring connected between the trigger component (2) and the contact support (1).

7. The microswitch trigger mechanism of claim 6, wherein: The trigger component (2) is formed with a recess (24) at the back, one end of the over-travel spring (3) is embedded in the recess (24) of the trigger component (2), and the other end is pressed against the contact support (1).

8. A contactor auxiliary contact module, used for controlling low-signal loads, characterized in that: The micro switch trigger mechanism comprises the micro switch trigger mechanism according to any one of claims 1 to 7.

9. A contactor characterized by: The contactor auxiliary contact module comprises the contactor auxiliary contact module according to claim 8.

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