Moving contact support structure and AC contactor thereof

Abstract

The present application relates to a moving contact support structure and an AC contactor thereof, including a moving contact support base, a first normally closed moving contact support, a second normally closed moving contact support, a first normally open moving contact support and a fourth normally open moving contact support. The first normally closed moving contact support, the first normally open moving contact support, the second normally open moving contact support and the second normally closed moving contact support are arranged side by side on the moving contact support base in sequence. The first normally closed moving contact support is provided with a first through cavity that runs through from front to back, and a matching spring and moving contact are built in. The top of the first through cavity is provided with a moving contact installation slot that runs through from front to back, and the bottom of the moving contact installation slot is connected to the first through cavity. During the installation process of the spring and the moving contact, the spring is placed in the first through cavity, and then the moving contact is placed horizontally on the spring of the first normally closed moving contact through the moving contact installation slot. While pressing the spring downward, the moving contact is rotated to install the moving contact in place, thereby reducing material usage and material management costs.

Description

Technical Field

[0001] The present application relates to the technical field of novel contactors, and in particular to a moving contact support structure and an AC contactor thereof. Background Art

[0002] The working principle of the AC contactor is to use electromagnetic force and spring elastic force to achieve the connection and disconnection of the moving contact. Among them, the existing four-pole AC contactor has two normally open active contacts + two normally closed active contacts and four normally open active contacts. Usually, the spring seat + spring is used to press the main circuit moving contact on the normally open side, and the spring seat + spring + another spring seat is used on the normally closed side to press the main circuit moving contact. However, the installation of the moving contact on the normally closed side is extremely inconvenient, and the product production efficiency is not high. Summary of the invention

[0003] In view of this, the present application proposes a moving contact support structure and an AC contactor thereof. A moving contact mounting groove is provided on the upper side of the through cavity supported by the normally closed moving contact, which is used to install the moving contact. While the moving contact is pressed downward to compress the spring, the moving contact is rotated to install the moving contact in place, thereby reducing the types of materials and lowering costs.

[0004] According to one aspect of the present application, a moving contact support structure and an AC contactor thereof are provided, comprising: a moving contact support base, a first normally closed moving contact support, a second normally closed moving contact support, a first normally open moving contact support and a fourth normally open moving contact support; the first normally closed moving contact support, the first normally open moving contact support, the second normally open moving contact support and the second normally closed moving contact support are sequentially arranged side by side on the moving contact support base; a first through cavity running through front and back is provided on the first normally closed moving contact support, in which a matching spring and moving contact are built-in, and a moving contact mounting groove running through front and back is provided on the top of the first through cavity, and the bottom of the moving contact mounting groove is connected to the first through cavity; the width of the moving contact mounting groove is smaller than the width of the moving contact.

[0005] In a possible implementation, a first positioning column is disposed at the bottom of the first through cavity, and the first positioning column is disposed at a central position of the bottom of the first through cavity; and a cross-section of the first positioning column is a boss-shaped structure.

[0006] In one possible implementation, the top of the moving contact mounting slot is a semicircular structure; the moving contact mounting slot is vertically opened and perpendicular to the bottom of the first through cavity; the moving contact mounting slot corresponds to the first positioning column in the vertical direction.

[0007] In one possible implementation, first transverse grooves are provided on both sides of the moving contact mounting groove; the first grooves are connected to the contact mounting groove; and a first process groove is provided at one end of the first groove away from the moving contact mounting groove.

[0008] In one possible implementation, first guide bosses are arranged on both side walls of the interior of the first through cavity in a vertical direction, and the two first guide bosses are aligned with the first positioning columns; the moving contact has a first protrusion and a first protrusion extending in a width direction; the first protrusion and the second protrusion are arranged on the same side; the first protrusion and the first protrusion are symmetrically arranged on the moving contact, and a groove formed between the first protrusion and the second protrusion is adapted to the first guide boss.

[0009] In one possible implementation, the structure of the second normally closed moving contact support is the same as the structure of the first normally closed moving contact support.

[0010] In one possible implementation, a second through cavity that passes through from front to back is provided on the support for the first normally open moving contact; the front cross-section of the second through cavity is a square structure; a second positioning column is provided on the top of the second through cavity, and the second positioning column is provided at the center position of the top of the second through cavity; second guide bosses are provided on the inner side walls of the second through cavity in the vertical direction, and the two second guide bosses are aligned with the second positioning column; a second process groove is provided at the bottom of the second through cavity, and the second process groove passes through from front to back, and the second process groove corresponds to the second positioning column up and down; the structure of the second normally open moving contact support is the same as the structure of the first normally open moving contact support.

[0011] In one possible implementation, the first normally closed moving contact support, the first normally open moving contact support, the second normally open moving contact support, the second normally closed moving contact support and the moving contact support base are integrally formed.

[0012] In one possible implementation, mounting grooves are provided on both sides of the moving contact support base; the mounting grooves are in the form of long strips and are parallel to the bottom of the moving contact support base; one end of the mounting groove is sealed and the other end is open, and the open end of the mounting groove is connected to the rear side of the moving contact support base.

[0013] On the other hand, the present application also proposes an AC contactor, comprising the moving contact support structure described in any of the above-mentioned implementation methods; the AC contactor also includes an AC contactor base; a mounting hole is provided on the AC contactor base, the moving contact support is adapted to the mounting hole, and the moving contact support structure is detachably arranged on the AC contactor base; a limiting groove is provided along the hole direction of the mounting hole, and two limiting grooves are provided, including a first limiting groove and a second limiting groove, the first limiting groove and the second limiting groove are symmetrically provided on both sides of the mounting hole, and the width of the first limiting groove is smaller than the width of the second limiting groove; a third protrusion and a fourth protrusion are respectively extended on both sides of the moving contact support base, and the width of the third protrusion is smaller than the width of the fourth protrusion; the third protrusion is adapted to the first limiting groove, and the fourth protrusion is adapted to the second limiting groove, so that when the moving contact support base is fixedly installed on the AC contactor base, it plays an anti-foolproof role.

[0014] The beneficial effects of the movable contact support structure and AC contactor thereof of the embodiment of the present application are as follows: a first normally closed movable contact support, a first normally open movable contact support, a second normally open movable contact support and a second normally closed movable contact support are arranged side by side in sequence on the top of the movable contact support base, wherein the structure of the first normally closed movable contact support is the same as that of the second normally closed movable contact support. A first through cavity provided on the first normally closed movable contact support is used to place a spring and a movable contact, and a connected movable contact installation slot is provided on the upper side of the first through cavity to facilitate the installation of the movable contact. Among them, when installing the moving contacts of the first normally closed moving contact support and the second normally closed moving contact support, the first step is to clamp the spring in the through cavity of the first normally closed moving contact support and the second normally closed moving contact support, the second step is to put the moving contact support with the spring installed into the corresponding matching parts, the third step is to place the moving contact horizontally on the springs of the first normally closed moving contact support and the second normally closed moving contact support through the moving contact installation slide groove, and the fourth step is to press down the compression spring while rotating the moving contact to install the moving contact in place. In this way, the materials such as spring seats currently used in the products on the market are reduced, and the material management costs of materials are reduced.

[0015] Other features and aspects of the present application will become apparent from the following detailed description of exemplary embodiments with reference to the attached drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The accompanying drawings, which are incorporated in and constitute a part of the specification, illustrate exemplary embodiments, features, and aspects of the present application and, together with the description, serve to explain the principles of the present application.

[0017] Figure 1 A schematic diagram showing the main structure of the movable contact support structure of an embodiment of the present application;

[0018] Figure 2 A rear view schematic diagram showing the main structure of the moving contact support structure of an embodiment of the present application;

[0019] Figure 3 A left side schematic diagram showing the main structure of the moving contact support structure of an embodiment of the present application;

[0020] Figure 4 A right side schematic diagram showing the main structure of the moving contact support structure of an embodiment of the present application;

[0021] Figure 5 A schematic diagram showing the main structure of the moving contact of an embodiment of the present application is shown;

[0022] Figure 6 A main schematic diagram showing the main structure of the AC contactor of an embodiment of the present application;

[0023] Figure 7 A schematic top view of the main structure of the AC contactor according to an embodiment of the present application is shown. DETAILED DESCRIPTION

[0024] Various exemplary embodiments, features and aspects of the present application will be described in detail below with reference to the accompanying drawings. The same reference numerals in the accompanying drawings represent elements with the same or similar functions. Although various aspects of the embodiments are shown in the accompanying drawings, the drawings are not necessarily drawn to scale unless otherwise specified.

[0025] Among them, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention or simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0026] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0027] The word “exemplary” is used exclusively herein to mean “serving as an example, example, or illustration.” Any embodiment described herein as “exemplary” is not necessarily to be construed as preferred or advantageous over other embodiments.

[0028] In addition, in order to better illustrate the present application, numerous specific details are given in the following specific embodiments. It should be understood by those skilled in the art that the present application can also be implemented without certain specific details. In some examples, methods, means, components and circuits well known to those skilled in the art are not described in detail in order to highlight the subject matter of the present application.

[0029] Figure 1 A schematic diagram showing the main structure according to an embodiment of the present application is shown. Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 and Figure 7 As shown, the moving contact support structure of the embodiment of the present application includes: a moving contact support base 100, a first normally closed moving contact support 200, a second normally closed moving contact support 500, a first normally open moving contact support 300 and a fourth normally open moving contact support 400. The first normally closed moving contact support 200, the first normally open moving contact support 300, the second normally open moving contact support and the second normally closed moving contact support 500 are arranged side by side in sequence on the moving contact support base 100, and the first normally closed moving contact support 200 is provided with a first through cavity 210 which runs through from front to back, and a corresponding spring and moving contact 700 are built in, and a moving contact mounting groove 220 which runs through from front to back is provided at the top of the first through cavity 210, and the bottom of the moving contact mounting groove 220 is connected to the first through cavity 210, and the width of the moving contact mounting groove 220 is smaller than the width of the moving contact 700, and the width of the moving contact mounting groove 220 is smaller than the diameter of the circumferential cross-section of the built-in spring.

[0030] In this specific embodiment, a first normally closed moving contact support 200, a first normally open moving contact support 300, a second normally open moving contact support and a second normally closed moving contact support 500 are sequentially arranged side by side on the top of the moving contact support base 100, wherein the structure of the first normally closed moving contact support 200 is the same as that of the second normally closed moving contact support 500. The first through cavity 210 provided on the first normally closed moving contact support 200 is used to place a spring and a moving contact 700, and a communicating moving contact installation slide groove 220 is provided on the upper side of the first through cavity 210 to facilitate the installation of the moving contact 700. Among them, when installing the moving contact 700 of the first normally closed moving contact support 200 and the second normally closed moving contact support 500, the first step is to clamp the spring in the through cavity of the first normally closed moving contact support 200 and the second normally closed moving contact support 500, the second step is to put the moving contact support with the spring installed into the corresponding matching parts, the third step is to place the moving contact 700 horizontally on the springs of the first normally closed moving contact support 200 and the second normally closed moving contact support 500 through the moving contact installation slide 220, and the fourth step is to press down the compression spring while rotating the moving contact 700 to install the moving contact 700 in place. In this way, the materials such as spring seats currently used in the products on the market are reduced, and the material management costs of the materials used are reduced.

[0031] In a specific embodiment, the top of the moving contact installation slot 220 is a semicircular structure. When the moving contact 700 is installed in the moving contact installation slot 220, it needs to be placed at an angle, so the top of the moving contact installation slot 220 is designed to be a semicircular structure to facilitate the installation of the moving contact 700. In addition, the top of the moving contact installation slot 220 is designed to be a semicircular structure to facilitate the tool withdrawal when the moving contact installation slot 220 is opened.

[0032] In a specific embodiment, a first positioning column 230 is disposed at the bottom of the first through cavity 210. The first positioning column 230 is disposed at the center of the bottom of the first through cavity 210, and the cross section of the first positioning column 230 is a boss-shaped structure. The first positioning column 230 is disposed at the bottom of the first through cavity 210 and is used to position and fix the spring in the first through cavity 210. Since the spring is a hollow structure, it can be placed on the top of the spring for fixing and positioning.

[0033] Furthermore, in this specific embodiment, the moving contact mounting groove 220 is opened vertically and is perpendicular to the bottom of the first through cavity 210. The moving contact mounting groove 220 corresponds to the first positioning column 230 in the vertical direction, so that the moving contact 700 placed inside the moving contact mounting groove 220 can press the spring placed on the first positioning column 230 when pressed downward.

[0034] In a specific embodiment, a horizontal first groove 250 is provided on both sides of the moving contact 700 installation slot, the first groove 250 is connected with the contact installation slot 220, and a first process groove is provided at one end of the first groove 250 away from the moving contact installation slot 220, and the first process groove is a back-cut groove. The contact of the moving contact 700 has a certain thickness, which is not convenient for installation in the moving contact installation slot 220, so a horizontal first groove 250 is provided on both sides of the moving contact installation slot 220, which is convenient for contact installation through the moving contact 700. In addition, a first process groove is provided at one end of the first groove 250 away from the moving contact installation slot 220, and the first process groove is a back-cut groove, which is convenient for back-cutting when the first through cavity 210, the moving contact installation slot 220 and the first groove 250 are opened. In addition, the first groove 250 is a concave structure, so that the product will not be greatly deformed when it is produced and demolded, thereby increasing the product production qualification rate and improving production efficiency. It can also reduce the amount of material used in a single part and reduce costs.

[0035] In a specific embodiment, first guide bosses 240 are arranged on both side walls of the first through cavity 210 in the vertical direction, and the two first guide bosses 240 are arranged on both sides of the first positioning column 230, that is, the two first guide bosses 240 and the first positioning column 230 are in the same vertical plane. In particular, corresponding grooves are provided on the corresponding sides of the moving contact 700 to match the guide bosses, so that the moving contact 700 can move in the first through cavity 210 along the vertical direction of the guide bosses, and the movement of the moving contact 700 in the first through cavity 210 is limited. In particular, a first protrusion 710 and a second protrusion 720 extend in the width direction of the moving contact 700, and the first protrusion 710 and the second protrusion 720 are arranged on the same side of the moving contact 700. In addition, the first protrusion 710 and the second protrusion 720 are symmetrically arranged, and the groove formed between the first protrusion 710 and the second protrusion 720 is adapted to the first guide boss to limit the vertical movement of the moving contact 700 in the first through cavity 210 .

[0036] In a specific embodiment, a second through cavity that runs through front and back is provided on the first normally open moving contact support 300, and the front cross section of the second through cavity is a square structure. A second positioning column is provided on the top of the second through cavity, and the second positioning column is provided at the center of the top of the second through cavity. Second guide bosses are provided on the inner two side walls of the second through cavity in the vertical direction, and the two second guide bosses are aligned with the second positioning column. A second process groove is provided at the bottom of the second through cavity, and the second process groove runs through front and back, and the second process groove corresponds to the second positioning column up and down, and the second process groove is a back cut groove. The structure of the second normally open moving contact support is the same as that of the first normally open moving contact support 300. A through cavity that runs through front and back is provided on both the first normally open contact support and the second normally open contact support, and the spring and the moving contact 700 are placed inside.

[0037] The AC contactor of the embodiment of the present application comprises a moving contact support base 100, and contact supports arranged in sequence on the moving contact support base 100. Among them, the first normally closed moving contact support 200, the first normally open moving contact support 300, the second normally open moving contact support, and the second normally closed moving contact support 500 are integrally formed with the moving contact support base 100, thereby solving the problem that the contact support cover slides and causes the spring to pop out under special conditions.

[0038] Furthermore, in this specific embodiment, mounting grooves 600 are opened on both sides of the moving contact support base 100. The mounting grooves 600 are in the form of long strips and are parallel to the bottom of the moving contact support base 100. One end of the mounting groove 600 is sealed and the other end is open, and the open end of the mounting groove 600 is connected to the rear side of the moving contact support base 100.

[0039] Among them, the AC contactor of the embodiment of the present application includes the above movable contact support structure and the AC contactor base 800. The AC contactor base 800 is provided with a mounting hole, the movable contact support is adapted to the mounting hole, and the movable contact support structure is detachably arranged on the AC contactor base 800, and the mounting hole is provided with a limiting groove along the hole direction, and there are two limiting grooves, including a first limiting groove and a second limiting groove, and the width of the first limiting groove is smaller than the width of the second limiting groove. The two sides of the movable contact support base are respectively extended with a third protrusion 110 and a fourth protrusion 120, the width of the third protrusion 110 is smaller than the width of the fourth protrusion 120, the size of the third protrusion 110 is adapted to the size of the first limiting groove 910, and the size of the fourth protrusion 120 is adapted to the size of the second limiting groove 920. In this way, when the moving contact support base is installed on the AC contactor base 800, the moving contact support base 100 can be correctly installed on the AC contactor base 800 only by installing the first protrusion 110 into the first limiting groove 910 and the second protrusion 120 into the second limiting groove 920. This can play an anti-mistake effect, reduce the wrong installation rate, prevent wrong installation and reverse installation in production, and increase production efficiency.

[0040] Steps for installing the moving contact 700 in the first through cavity 210:

[0041] The first step is to clamp the spring into the first through cavity 210 supported by the first normally closed contact.

[0042] The second step is to place the contact support with the spring installed into the corresponding matching parts.

[0043] In the third step, the moving contact 700 is placed horizontally on the spring supported by the first normally closed contact through the moving contact installation slot 220.

[0044] In the fourth step, while pressing the compression spring downward, the moving contact 700 is rotated to install the moving contact 700 in place. The various embodiments of the present application have been described above. The above description is exemplary, not exhaustive, and is not limited to the disclosed embodiments. Many modifications and changes are obvious to those of ordinary skill in the art without departing from the scope and spirit of the described embodiments. The choice of terms used in this article is intended to best explain the principles of the embodiments, practical applications, or improvements to the technology in the market, or to enable other ordinary technicians in the technical field to understand the embodiments disclosed herein.

Claims

1. A moving contact support structure, characterized in that: include: Moving contact support base, first normally closed moving contact support, second normally closed moving contact support, first normally open moving contact support and second normally open moving contact support; The first normally closed moving contact support, the first normally open moving contact support, the second normally open moving contact support and the second normally closed moving contact support are sequentially arranged side by side on the moving contact support base; The first normally closed moving contact support is provided with a first through cavity which is through from front to back, and a matching spring and moving contact are built in, and a moving contact installation slot which is through from front to back is provided on the top of the first through cavity, the bottom of the moving contact installation slot is connected with the first through cavity, and the top of the moving contact installation slot is in a semicircular structure, and the moving contact is placed obliquely when installed in the moving contact installation slot; The width of the moving contact mounting slot is smaller than the width of the moving contact; Both sides of the movable contact mounting slot are provided with first concave grooves; The first groove is in communication with the contact mounting slot; A first process groove is formed at one end of the first groove away from the moving contact installation slide groove.

2. The movable contact support structure according to claim 1, characterized in that: A first positioning column is disposed at the bottom of the first through cavity, and the first positioning column is disposed at the center position of the bottom of the first through cavity; The cross section of the first positioning column is a boss-shaped structure.

3. The movable contact support structure according to claim 2, characterized in that: The moving contact installation slot is vertically opened and perpendicular to the bottom of the first through cavity; The moving contact mounting slot corresponds to the first positioning column in the vertical direction.

4. The movable contact support structure according to claim 3, characterized in that: First guide bosses are arranged on both side walls of the first through cavity in the vertical direction, and the two first guide bosses are aligned with the first positioning posts; The movable contact has a first protrusion and a second protrusion extending in the width direction; The first protrusion and the second protrusion are arranged on the same side; The first protrusion and the second protrusion are symmetrically arranged on the moving contact, and a second groove is formed between the first protrusion and the second protrusion, which is adapted to the first guide boss.

5. The movable contact support structure according to claim 1, characterized in that: The structure of the second normally closed moving contact support is the same as the structure of the first normally closed moving contact support.

6. The movable contact support structure according to claim 1, characterized in that: The first normally open moving contact support is provided with a second through cavity which runs through from front to back; The front view cross section of the second through cavity is a square structure; A second positioning column is disposed on the top of the second through cavity, and the second positioning column is disposed at the center position of the top of the second through cavity; On both side walls of the second through cavity, second guide bosses are arranged along the vertical direction, and two of the second guide bosses are aligned with the second positioning posts; A second process groove is formed at the bottom of the second through cavity, the second process groove is connected front to back, and the second process groove corresponds to the second positioning column up and down; The structure of the second normally open moving contact support is the same as the structure of the first normally open moving contact support.

7. The movable contact support structure according to claim 1, characterized in that: The first normally closed moving contact support, the first normally open moving contact support, the second normally open moving contact support, the second normally closed moving contact support and the moving contact support base are integrally formed.

8. The movable contact support structure according to claim 7, characterized in that: The two sides of the movable contact support base are provided with mounting grooves; The mounting groove is in a long strip structure and is parallel to the bottom of the moving contact support base; One end of the mounting groove is sealed and the other end is open, and the open end of the mounting groove is communicated with the rear side of the moving contact supporting base.

9. An AC contactor, characterized in that: A movable contact support structure comprising any one of claims 1 to 8; The AC contactor also includes an AC contactor base; The AC contactor base is provided with a mounting hole, the movable contact support structure is adapted to the mounting hole, and the movable contact support structure is detachably arranged on the AC contactor base; The mounting hole is provided with a limiting groove along the hole direction, and two limiting grooves are provided, including a first limiting groove and a second limiting groove, the first limiting groove and the second limiting groove are symmetrically provided on both sides of the mounting hole, and the width of the first limiting groove is smaller than the width of the second limiting groove; A third protrusion and a fourth protrusion are respectively extended from both sides of the moving contact support base, and the width of the third protrusion is smaller than the width of the fourth protrusion; The third protrusion is matched with the first limiting groove, and the fourth protrusion is matched with the second limiting groove, which plays an anti-foolproof role when the moving contact support base is fixedly installed on the AC contactor base.

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