AC contactor

Abstract

This invention relates to the field of contactor technology, specifically disclosing an AC contactor. The AC contactor includes a housing body with a first slot opening in a first direction and a second slot opening in a second direction; a side cover includes at least two sealing portions spaced apart along a third direction, with a rib between two adjacent sealing portions; at least one sealing portion has a latching protrusion; the side cover is made of an elastic material, and the distance between the rib and the latching protrusion is variable in the second direction; the rib can be inserted into the first slot, and the latching protrusion can be engaged in the second slot, with the third direction being perpendicular to both the first and second directions. This configuration allows the side cover to be mounted on the housing body while limiting its degrees of freedom in the first and second directions. The rib reinforces the side cover, increasing its overall strength; furthermore, the latching protrusion, engaged with the first and second slots on the housing body, simplifies the side cover's structure and reduces manufacturing costs.

Description

Technical Field

[0001] This invention relates to the field of contactor technology, and more particularly to AC contactors. Background Technology

[0002] An AC contactor is an electrical device that uses a coil to generate a magnetic field, causing contacts to close and thus controlling a load. When the AC contactor coil is energized, the coil current generates a magnetic field. This magnetic field causes the stationary iron core to exert an electromagnetic attraction, drawing in the moving iron core and actuating the contactor contacts. Normally closed contacts open, and normally open contacts close; these actions are linked. When the coil is de-energized, the electromagnetic attraction disappears, and the moving iron core is released by the release spring, causing the contacts to return to their original position: normally open contacts open, and normally closed contacts close.

[0003] In existing AC contactors, the side cover engages with the slot on the housing body through a protruding, elastically deformable snap-fit ​​feature. This results in a complex structure for the side cover and low connection strength between the sealing parts, making the parts connecting the sealing parts prone to breakage and reducing the overall strength of the side cover. Summary of the Invention

[0004] The purpose of this invention is to provide an AC contactor to solve the problems of complex structure and low overall strength of the side cover.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] This invention provides an AC contactor, the AC contactor comprising:

[0007] The body shell has a first slot with an opening facing a first direction and a second slot with an opening facing a second direction.

[0008] The side cover includes at least two sealing portions spaced apart along a third direction, with a rib between two adjacent sealing portions; at least one sealing portion has a locking protrusion; the body and / or the side cover are made of elastic material, and in the second direction, the distance between the rib and the locking protrusion is variable and / or the distance between the upper sidewall of the first slot and the bottom of the second slot is variable; the rib can be inserted into the first slot, the locking protrusion can be engaged in the second slot, and the third direction is perpendicular to both the first and second directions.

[0009] As a preferred technical solution for the AC contactor, the housing body includes a base and a partition plate disposed on the base. The partition plate is parallel to the plane formed by the first direction and the second direction. The first slot is disposed on the partition plate. An avoidance groove is formed between two adjacent blocking parts. The two ends of the stiffener are respectively connected to the two side walls of the avoidance groove. The partition plate can be inserted into the avoidance groove.

[0010] As a preferred technical solution for the AC contactor, the second slot is located on the base.

[0011] As a preferred technical solution for the AC contactor, a plurality of partition plates are provided, the plurality of partition plates are spaced apart on the base, at least two of the partition plates are provided with the first slot, the second slot is located between the two first slots, and the side cover is made of elastic material.

[0012] As a preferred technical solution for the AC contactor, the card protrusion is provided with a first guide surface, which is inclined at the bottom of the second card slot in a direction away from the body of the casing.

[0013] As a preferred technical solution for the AC contactor, the housing body is provided with a guide groove, the guide groove extends along a first direction, and the locking protrusion is engaged with the second locking groove after passing through the guide groove.

[0014] As a preferred technical solution for the AC contactor, the guide groove is provided with a second guide surface, which is inclined to the protrusion in a direction close to the second slot.

[0015] As a preferred technical solution for the AC contactor, the side cover includes three sealing parts, and the stiffening plate is provided between any two adjacent sealing parts.

[0016] As a preferred technical solution for an AC contactor, the first direction is perpendicular to the second direction.

[0017] As a preferred technical solution for AC contactors, the side cover is a housing structure.

[0018] The beneficial effects of this invention are as follows:

[0019] This invention provides an AC contactor, which features a first and a second slot on the body of the casing, with the opening directions of the two slots being different. A rib and a protrusion are provided between the two sealing portions of the side cover. At least one of the casing and the side cover is made of an elastic material, allowing the distance between the rib and the protrusion to be variable in a second direction, and / or the distance between the upper sidewall of the first slot and the bottom of the second slot to be variable. The rib can be inserted into the first slot, and the protrusion can be engaged in the second slot. The third direction is perpendicular to both the first and second directions. The rib, on the one hand, reinforces the side cover, improving its overall strength; on the other hand, it engages with the protrusion in the first and second slots on the casing, avoiding the need for protruding, elastically deformable latching features on the side cover, simplifying its structure and reducing manufacturing costs. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the structure of the AC contactor in an embodiment of the present invention;

[0021] Figure 2 This is a schematic diagram of the structure of the body shell in an embodiment of the present invention;

[0022] Figure 3 for Figure 2 A magnified view of a portion of point A in the middle;

[0023] Figure 4 This is a schematic diagram of the side cover from a first-view perspective in an embodiment of the present invention;

[0024] Figure 5 This is a schematic diagram of the side cover from a second perspective in an embodiment of the present invention;

[0025] Figure 6 This is a partial cross-sectional structural diagram of the AC contactor in an embodiment of the present invention.

[0026] In the picture:

[0027] X, first direction; Y, third direction; Z, second direction;

[0028] 1. Body shell; 11. Base; 111. Second slot; 112. Guide groove; 1121. Second guide surface; 12. Partition plate; 121. First slot;

[0029] 2. Side cover; 21. Sealing part; 22. Rib plate; 23. Clip protrusion; 231. First guide surface; 24. Avoidance groove. Detailed Implementation

[0030] The technical solution of the present invention will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0031] In the description of this invention, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing the invention and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. The terms "first position" and "second position" refer to two different positions. Furthermore, "above," "on top of," and "over" the first feature in relation to the second feature includes the first feature directly above and diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "under," and "below" the first feature in relation to the second feature includes the first feature directly below and diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0032] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0033] Embodiments of the present invention are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.

[0034] like Figure 1-6As shown, this embodiment provides an AC contactor, which includes a housing body 1 and a side cover 2. The housing body 1 has a first slot 121 with an opening facing a first direction X and a second slot 111 with an opening facing a second direction Z. The side cover 2 includes at least two sealing portions 21 spaced apart along a third direction Y, with a rib 22 between two adjacent sealing portions 21. At least one sealing portion 21 has a locking protrusion 23. The side cover 2 is made of an elastic material, and the distance between the rib 22 and the locking protrusion 23 is variable in the second direction Z. The rib 22 can be inserted into the first slot 121, and the locking protrusion 23 can be engaged in the second slot 111. The third direction Y is perpendicular to both the first direction X and the second direction Z. The above configuration allows the side cover 2 to be mounted on the housing body 1, thus limiting the degrees of freedom of the side cover 2 in the first direction X and the second direction Z, where the first direction X is the front-back direction and the second direction Z is the up-down direction. The aforementioned stiffener 22 can, on the one hand, reinforce the side cover 2 and improve its overall strength; on the other hand, it can cooperate with the latching protrusion 23 to engage with the first latching groove 121 and the second latching groove 111 on the body shell 1, avoiding the need for protruding and elastically deformable buckle features on the side cover 2, simplifying the structure of the side cover 2 and reducing manufacturing costs.

[0035] Regarding the material settings of the body 1 and the side cover 2, in another embodiment, the body 1 is made of an elastic material, and the distance between the upper sidewall of the first slot 121 and the bottom of the second slot 111 is variable in the second direction Z. In a third embodiment, both the body 1 and the side cover 2 are made of elastic materials, and the distance between the rib 22 and the latching protrusion 23 is variable in the second direction Z, and the distance between the upper sidewall of the first slot 121 and the bottom of the second slot 111 is also variable.

[0036] Regarding the structure of the body 1, in this embodiment, optionally, the body 1 includes a base 11 and a partition plate 12 disposed on the base 11. The partition plate 12 is parallel to the plane formed by the first direction X and the second direction Z. A first slot 121 is disposed on the partition plate 12. A clearance groove 24 is formed between two adjacent blocking parts 21. The two ends of the stiffener 22 are respectively connected to the two side walls of the clearance groove 24. The partition plate 12 can be inserted into the clearance groove 24. The partition plate 12 blocks between different wiring terminals. The above arrangement allows the side cover 2, after being installed on the body 1, to limit the third degree of freedom Y of the side cover 2 through the partition plate 12 and the side walls of the clearance groove 24.

[0037] In this embodiment, optionally, the first slot 121 is provided on the partition plate 12 and extends through the partition plate 12 in the third direction Y. The above arrangement is beneficial to the production of the partition plate 12 and reduces costs.

[0038] In one embodiment, the second slot 111 is disposed on the base 11. Disposing the second slot 111 on the base 11 facilitates production and reduces production costs. Of course, in other embodiments of this invention, the second slot 111 can be disposed on the partition plate 12. When disposed on the partition plate 12, a connecting groove communicating with the second slot 111 also needs to be provided on the partition plate 12 so that the card protrusion 23 can enter the second slot 111 through the connecting groove. Considering the simplicity of the structure, in this embodiment, the preferred solution is to dispose of the second slot 111 on the base 11, and the following description will be based on this solution.

[0039] Several baffle plates 12 are provided, spaced apart on the base 11. At least two adjacent baffle plates 12 have a first slot 121, and a second slot 111 is located between the two first slots 121. The side cover 2 is made of elastic material. Specifically, three baffle plates 12 are provided to separate any two adjacent wires from the three live wires and one ground wire. The two baffle plates 12 used to separate the live wires each have a first slot 121. This arrangement makes it easier for the middle protrusion 23 to undergo elastic deformation relative to the side ribs 22 in the second direction Z, thereby reducing the difficulty of assembling and disassembling the side cover 2. Optionally, the side cover 2 is made of plastic.

[0040] In this embodiment, the side cover 2 is a shell structure. The shell structure of the side cover 2 is more prone to elastic deformation, which makes it easier to reduce the difficulty of assembling and disassembling the side cover 2.

[0041] In this embodiment, preferably, the protrusion 23 is provided with a first guide surface 231, which is inclined at the bottom of the second slot 111 in a direction away from the body 1. The first guide surface 231 allows the side cover 2 to be installed by directly pushing it toward the body 1 after the stiffener 22 and the first slot 121 are aligned, thus improving the installation efficiency of the side cover 2.

[0042] To prevent misalignment between the side cover 2 and the body 1 during the pressing process, in this embodiment, the body 1 is provided with a guide groove 112. The guide groove 112 extends along the first direction X, and the locking protrusion 23 is engaged with the second locking groove 111 after passing through the guide groove 112.

[0043] Furthermore, the guide groove 112 is provided with a second guide surface 1121, which is inclined towards the protrusion 23 in a direction close to the second slot 111. The second guide surface 1121 provides guidance for the protrusion 23 to enter the second slot 111, reducing the difficulty of the protrusion 23 entering the second slot 111 and further reducing the installation difficulty of the side cover 2.

[0044] Considering that the AC contactor involves three live wires and one ground wire, in order to achieve comprehensive protection for the three live wires, in this embodiment, the side cover 2 includes three sealing parts 21, and a stiffening plate 22 is provided between any two adjacent sealing parts 21.

[0045] In this embodiment, the first direction X is perpendicular to the second direction Z. In this embodiment, where the first direction X and the second direction Z are perpendicular, the side cover 2 can be better locked to the body body 1. Of course, in other embodiments of this invention, the first direction X and the second direction Z can be set at an angle.

[0046] Obviously, the above embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the implementation of the present invention. Those skilled in the art can make other variations or modifications based on the above description. It is neither necessary nor possible to exhaustively describe all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention should be included within the scope of protection of the claims of the present invention.

Claims

1. An AC contactor, characterized in that, include: The body body (1) is provided with a first slot (121) with an opening facing a first direction (X) and a second slot (111) with an opening facing a second direction (Z). Side cover (2), the side cover (2) includes at least two blocking parts (21) spaced apart along a third direction (Y), and a rib plate (22) is provided between two adjacent blocking parts (21); at least one of the blocking parts (21) is provided with a locking protrusion (23); the body shell (1) and / or the side cover (2) are made of elastic material, and in the second direction (Z), the distance between the rib plate (22) and the locking protrusion (23) is variable and / or the distance between the upper side wall of the first slot (121) and the bottom of the second slot (111) is variable; the rib plate (22) can be inserted into the first slot (121), the locking protrusion (23) can be locked into the second slot (111), and the third direction (Y) is perpendicular to both the first direction (X) and the second direction (Z).

2. The AC contactor according to claim 1, characterized in that, The body body (1) includes a base (11) and a partition plate (12) disposed on the base (11). The partition plate (12) is parallel to the plane formed by the first direction (X) and the second direction (Z). The first slot (121) is disposed on the partition plate (12). A clearance groove (24) is formed between two adjacent blocking parts (21). The two ends of the stiffener (22) are respectively connected to the two side walls of the clearance groove (24). The partition plate (12) can be inserted into the clearance groove (24).

3. The AC contactor according to claim 2, characterized in that, The second slot (111) is located on the base (11).

4. The AC contactor according to claim 2, characterized in that, The partition (12) is provided in a plurality of places, and the partition (12) is spaced apart on the base (11). At least two partitions (12) are provided with the first slot (121), and the second slot (111) is located between the two first slots (121). The side cover (2) is made of elastic material.

5. The AC contactor according to claim 1, characterized in that, The card protrusion (23) is provided with a first guide surface (231), which is inclined at the bottom of the second card slot (111) in a direction away from the body body (1).

6. The AC contactor according to claim 1, characterized in that, The body shell (1) is provided with a guide groove (112), the guide groove (112) extends along the first direction (X), and the locking protrusion (23) is engaged with the second locking groove (111) after passing through the guide groove (112).

7. The AC contactor according to claim 6, characterized in that, The guide groove (112) is provided with a second guide surface (1121), which is inclined to the card protrusion (23) in a direction close to the second card groove (111).

8. The AC contactor according to any one of claims 1-7, characterized in that, The side cover (2) includes three sealing parts (21), and the stiffening plate (22) is provided between any two adjacent sealing parts (21).

9. The AC contactor according to any one of claims 1-7, characterized in that, The first direction (X) is perpendicular to the second direction (Z).

10. The AC contactor according to any one of claims 1-7, characterized in that, The side cover (2) is a shell structure.

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