Support system of contactor and contactor

Abstract

The utility model relates to a contactor support system and contactor, the contactor support system comprises a shell and a side cover, the shell comprises a plurality of clamping protrusions, the plurality of clamping protrusions protrude along a first direction and are arranged at intervals along a second direction, each clamping protrusion comprises a head portion and a neck portion, the neck portion is defined to be connected to the lower end of the head portion, and the side cover is arranged on the shell. The head portion is connected to the upper end of the neck portion, the side cover comprises a plurality of clamping grooves matched with the clamping protrusions, each clamping protrusion is inserted into the corresponding clamping groove, and the lower end of the head portion of at least one clamping protrusion is in interference fit with the corresponding clamping groove. The two clamping protrusions located at the head end and the tail end in the second direction are in interference fit with the clamping grooves corresponding to the clamping protrusions at least in the second direction. The side cover is easier to assemble, the side cover is limited in the vertical direction and the horizontal direction, the reliability is good, and the position stability is high.

Description

TECHNICAL FIELD

[0001] The utility model relates to a switch, concretely relates to a support system in contactor. BACKGROUND

[0002] The contactor typically includes an electromagnetic system, a contact system, a support system and the like. The support system is composed of a body shell, a base, a top cover, a side cover and the like. The side cover is mainly used to protect the terminals of the main circuit. By designing the size and depth of the screw mounting hole at the top of the side cover, the protection level of IP20 is achieved, preventing the fingers from contacting the live parts inside the electric appliance.

[0003] The side cover is fixed on the body shell by tight fitting. If the side cover and the body shell are loose, on the one hand, the screw terminals and the screw holes at the top of the side cover may be misaligned, causing difficulty in wiring; on the other hand, the side cover may fall off due to constant mechanical vibration during use, resulting in failure of protection. In order to facilitate installation, the side cover in the prior art can only be tightly fitted in the vertical direction, and cannot be tightly fitted in the horizontal direction, resulting in poor position stability of the side cover. SUMMARY

[0004] In view of the above problems, the utility model provides a support system of a contactor with an optimized structure, and a contactor with the support system of the contactor.

[0005] The utility model adopts the following technical solutions:

[0006] The utility model provides a support system of a contactor, which comprises a body shell and a side cover. The body shell comprises a plurality of clamping protrusions which protrude in a first direction and are arranged at intervals in a second direction. The clamping protrusions comprise a head portion and a neck portion. The neck portion is connected to the lower end of the head portion, and the head portion is connected to the upper end of the neck portion. The side cover comprises a plurality of clamping grooves which match the clamping protrusions. Each clamping protrusion is inserted into the corresponding clamping groove. The lower end of the head portion of at least one clamping protrusion is in interference fit with the corresponding clamping groove in the second direction. The two clamping protrusions at the two ends in the second direction and the corresponding clamping grooves are in interference fit at least in the second direction.

[0007] In one embodiment, the upper end of the head portion of at least one clamping protrusion is in clearance fit with the corresponding clamping groove.

[0008] In one embodiment, the lower end of the head portion is provided with a chamfer which is inclined to the first direction. The chamfer connects the lower end surface of the head portion and the end surface of the head portion in the first direction.

[0009] In one embodiment, the chamfer is arranged at the connection between the head portion and the neck portion and extends in an arc shape.

[0010] In one embodiment, all the card slots are integrally formed on one of the side covers.

[0011] In one embodiment, the first interference fit is formed by the interference fit between the lower end of the head of the at least one card protrusion and the corresponding card slot, and the second interference fit is formed by the interference fit between the two card protrusions at the two ends in the second direction and the corresponding card slots.

[0012] In one embodiment, the first interference fit is arranged below the second interference fit.

[0013] In one embodiment, the two card protrusions at the two ends in the second direction are defined as first card protrusions, and the remaining card protrusions on the inner side are defined as second card protrusions, the first card protrusions are provided with inclined fitting surfaces gradually inclined inward from top to bottom, and the inclined fitting surfaces are in interference fit with the card slots corresponding to the first card protrusions.

[0014] In one embodiment, a chamfer inclined to the first direction is arranged at the lower end of the head, the chamfer is used to guide the sliding of the side cover and make the card slot enter the lower end of the head of the card protrusion, and the side cover can be squeezed into the two inclined fitting surfaces under the guidance of the inclined fitting surfaces and in interference fit with the inclined fitting surfaces.

[0015] The utility model also provides a contactor, including support system, the support system is as above described support system.

[0016] The utility model has the advantages of easy assembly, reliable positioning in vertical and horizontal directions, and high position stability. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 is the perspective view of the contactor in the embodiment;

[0018] Figure 2 is the perspective view of the side cover in the embodiment;

[0019] Figure 3 is the front view of the contactor in the embodiment;

[0020] Figure 4 is the enlarged view of A in the embodiment; Figure 1

[0021] Figure 5 is the enlarged view of B in the embodiment; Figure 3

[0022] Figure 6 ​​is Figure 3 Close-up view at C. DETAILED DESCRIPTION

[0023] To further illustrate the embodiments, the drawings of the utility model are provided. These drawings are part of the disclosure of the utility model, which mainly serves to illustrate the embodiments and can be used to explain the operating principle of the embodiments in conjunction with the relevant description of the specification. With reference to these contents, those skilled in the art should be able to understand other possible implementations and the advantages of the utility model. The components in the drawings are not drawn to scale, and similar component symbols are generally used to represent similar components.

[0024] The utility model will be further illustrated in conjunction with the drawings and specific embodiments.

[0025] Referring to Figure 1 As shown in the drawings, as a preferred embodiment of the utility model, a contactor is provided, specifically an alternating current contactor, which comprises an electromagnetic system, a contact system, a support system and the like, wherein the support system further comprises a body shell 1, a base 3, a top cover 4 and a side cover 2, the side cover 2 is used for protecting the main circuit terminal. The side cover 2 is fixedly assembled on the body shell 1, wherein the body shell 1 comprises a plurality of clamping protrusions, the clamping protrusions protrude along a first direction T1, and the plurality of clamping protrusions are arranged at intervals along a second direction T2. In this embodiment, the clamping protrusions further comprise first clamping protrusions 11 at the first and last outer ends in the second direction T2 and second clamping protrusions 12 at the inner side. It can be understood that the specifications and shapes of each clamping protrusion can be exactly the same, or can be allowed to have certain differences to adapt to the shape requirements of the contactor. For example, in this embodiment, the first clamping protrusions 11 have complete modeling only on the inner side because they are at the edge of the shell of the contactor. If the volume of the contactor allows it to be designed larger, the first clamping protrusions 11 can also be completely consistent with the modeling of the second clamping protrusions 12 in other embodiments. As long as the overall function of the clamping protrusion is a clamping protrusion structure for clamping with the side cover 2, the clamping protrusion is acceptable. Corresponding to each clamping protrusion, a clamping groove is provided on the side cover 2, which comprises a first clamping groove 21 corresponding to the first clamping protrusion 11 and a second clamping groove 22 corresponding to the second clamping protrusion 12. Each clamping groove and the corresponding clamping protrusion are matched in shape, so that the clamping protrusion can be inserted into the corresponding clamping groove, and each group of clamping grooves and clamping protrusions are clamped. Similarly, the specifications and shapes of the clamping grooves can be exactly the same, or can be allowed to have certain differences to adapt to the shape requirements of the contactor. For example, in this embodiment, the first clamping groove 21 is half open and only has complete modeling on the inner side because it is at the edge of the shell of the contactor. If the volume of the contactor allows it to be designed larger, the first clamping groove 21 can also be completely consistent with the modeling of the second clamping groove 22 in other embodiments. The side cover 2 is an integral structure in this embodiment, and all clamping grooves are integrally formed on the side cover 2.

[0026] As Figure 4As shown, the clamping protrusion includes a head 7 and a neck 8, for the convenience of description, the neck 8 is defined to be connected at the lower end of the head 7, and the head 7 is connected at the upper end of the neck 8, and a chamfer 5 is arranged at the lower end of the head 7 and inclined to the first direction T1, the chamfer 5 connects the lower end surface of the head 7 and the end surface of the head 7 in the first direction T1. When installing the side cover 2, first, the upper edge of the clamping groove is abutted against the upper end of the head 7 to preliminarily position the side cover 2, and then the lower edge of the clamping groove is pressed into the lower end of the head 7 along the chamfer 5, so that the clamping of the clamping groove and the clamping protrusion is realized. In this process, the chamfer 5 forms an inclined guide portion, which can guide the side cover 2 to slide thereon and finally clamped into the lower end of the head 7. In the embodiment, the chamfer 5 is arranged at the connection between the head 7 and the neck 8 and extends in an arc shape to provide the largest inclined guide surface.

[0027] The chamfer 5 allows the side cover 2 to be installed in a nearly swinging manner, and the clamping groove is clamped with the clamping protrusion in a direction opposite to the first direction T1, so that the interference fit portion of the clamping groove and the clamping protrusion can be designed more flexibly. In the embodiment, the lower end of the head 7 of at least one clamping protrusion is interference fit with the corresponding clamping groove, and the first clamping protrusion 11 and the corresponding first clamping groove 21 are interference fit at least in the second direction T2, so that the positioning of the side cover 2 in the vertical and horizontal directions can be realized at the same time, and the position stability of the side cover 2 is improved. In the embodiment, the lower end of the head 7 of each clamping protrusion is interference fit with the corresponding clamping groove.

[0028] Further, considering that the side cover 2 is installed with the body 1 in a nearly swinging manner, as shown in the figure, Figure 6 The upper end of the head 7 of at least one clamping protrusion is clearance fit with the corresponding clamping groove, such as the upper end of the head 7 of the second clamping protrusion 12 and the corresponding second clamping groove 22 in the embodiment, so that the side cover 2 can be more easily assembled. If other installation methods are used, the upper end of the head 7 of the clamping protrusion and the corresponding clamping groove can also be configured to be interference fit, in order to improve the fastening of the side cover 2 after being assembled with the body 1.

[0029] As shown in the figure, Figure 5An inclined mating surface 6, which gradually slopes inward from top to bottom, is provided on the inner side of the first latching protrusion 11 facing the adjacent second latching protrusion 12. The inclined mating surfaces 6 of the two first latching protrusions 11 form a gradually narrowing snap-fit ​​opening. During the installation of the side cover 2, the upper edge of the slot is first pressed against the upper end of the head 7 to pre-position the side cover 2. At this time, the inclined mating surface 6 is in clearance fit with the side cover 2, and the upper end of the head 7 of the second latching protrusion 12 is in clearance fit with the corresponding second slot 22, making the side cover 2 easier to assemble. Then, along the chamfer 5, press the lower edge of the slot into the lower end of the head 7. As the side cover 2 is inserted into the protrusion, the entire side cover 2 will move downward as a whole. Guided by the inclined mating surface 6, the side cover 2 is squeezed downward into the two inclined mating surfaces 6. The lower end of the head 7 of each protrusion is in interference fit with the corresponding slot, preventing the side cover 2 from moving upward. This makes the inclined mating surface 6 and the side cover 2 tightly engaged, that is, the inclined mating surface 6 and the slot corresponding to the first protrusion 11 are in interference fit. In this way, the first protrusion 11 and the corresponding first slot 21 are in interference fit in the second direction T2. ​​In this embodiment, the interference fit (first interference fit) between the lower end of the head 7 of the protrusion and the corresponding slot forms an upward anti-disengagement limit on the interference fit (second interference fit) between the inclined mating surface 6 and the slot corresponding to the first protrusion 11. Thus, it does not hinder the quick installation of the side cover 2, and the side cover 2 is limited in both the vertical and horizontal directions, which has good reliability. In this configuration, the lower end of the head 7 of the protrusion is positioned below the interference fit (first interference fit) of the corresponding slot with the inclined mating surface 6 and the interference fit (second interference fit) of the slot corresponding to the first protrusion 11. Thus, when the side cover 2 is installed in a near-swinging manner, the lower end of the head 7 of the protrusion can first make an interference fit with the corresponding slot, and after being guided by the chamfer 5, it can then make an interference fit between the inclined mating surface 6 and the slot corresponding to the first protrusion 11.

[0030] Although the present invention has been specifically shown and described in conjunction with preferred embodiments, those skilled in the art should understand that any changes in form and detail made to the present invention without departing from the spirit and scope of the present invention as defined in the appended claims fall within the protection scope of the present invention.

Claims

1. A support system for a contactor, comprising a housing and a side cover, said housing comprising a plurality of lugs, said lugs being raised in a first direction and spaced apart in a second direction, said lugs comprising a head portion and a neck portion, said neck portion being connected at a lower end of said head portion, said head portion being connected at an upper end of said neck portion, said side cover comprising a plurality of slots matching said lugs, each of said lugs being inserted into a corresponding one of said slots, characterized in that: At least one of the head of the clamping protrusion and the corresponding clamping slot is in interference fit in the second direction.

2. The contactor support system of claim 1, wherein: At least one of the head of the clamping protrusion and the corresponding clamping slot is in clearance fit.

3. The contactor support system of claim 1, wherein: The lower end of the head is provided with a chamfer inclined to the first direction, and the chamfer connects the lower end surface of the head and the end surface of the head in the first direction.

4. The contactor support system of claim 3, wherein: The chamfer is located at the joint of the head and the neck and extends in an arc shape.

5. The contactor support system of claim 1, wherein: All the clamping slots are integrally formed on one side cover.

6. The contactor support system of claim 1, wherein: The interference fit between the lower end of the head of the at least one clamping protrusion and the corresponding clamping slot is the first interference fit, and the interference fit between the two clamping protrusions at the head and tail ends in the second direction and the corresponding clamping slots is the second interference fit, and the first interference fit forms an upward anti-disengagement limit for the second interference fit.

7. The contactor support system of claim 6, wherein: The first interference fit is located below the second interference fit.

8. The contactor support system of claim 6, wherein: The two clamping protrusions at the two outer ends in the second direction are defined as first clamping protrusions, and the remaining clamping protrusions on the inner side are defined as second clamping protrusions, and the first clamping protrusions are provided with inclined fitting surfaces inclined inward from top to bottom and facing the inner side of the adjacent second clamping protrusions, and the inclined fitting surfaces are in interference fit with the clamping slots corresponding to the first clamping protrusions.

9. The contactor support system of claim 8, wherein: The lower end of the head is provided with a chamfer inclined to the first direction, and the chamfer is used to guide the sliding of the side cover and make the clamping slot fit into the lower end of the head of the clamping protrusion, and the side cover can be squeezed into the two inclined fitting surfaces and in interference fit with the inclined fitting surfaces under the guidance of the inclined fitting surfaces while being guided to slide by the chamfer.

10. A contactor comprising a support system, characterized by: The support system is the support system according to any one of claims 1-9.

Images