A contactor housing structure and a contactor

Abstract

This utility model discloses a contactor housing structure and a contactor. When the upper cover and the base are closed, the first and second plug-in plates on the side sealing plate are respectively inserted into the first and second slots of the base. This not only completes the vertical docking of the upper and lower housings, but also achieves a deep horizontal fit at the connection between the upper cover and the base. The L-shaped plug-in structure provides a robust and reliable support for the housing body, directly transferring the lateral expansion force that may be generated at the terminal block to the more robust overall structure of the base through the plug-in plates, thereby effectively resisting deformation and preventing the housing from expanding. The L-shaped plug-in method changes the connection between the upper cover and the base from surface contact positioning to three-dimensional interlocking positioning, greatly increasing the contact area and mechanical interlocking strength at the connection of the housing body, which makes the overall rigidity of the housing body higher and more stable.

Description

Technical Field

[0001] This utility model relates to the field of contactor technology, specifically to a contactor housing structure and a contactor. Background Technology

[0002] A contactor is an electromagnetic switch used to automatically connect or disconnect a high-current circuit. It mainly consists of a housing and an electromagnetic system and a contact system located inside the housing. The two ends of the contact system are provided with terminals for connecting the main circuit or the control circuit.

[0003] The housing typically consists of upper and lower parts. When connecting wires to terminals in existing contactors, the wires are electrically connected to the terminals by screwing the wire frame. Due to the low deformation resistance of the housing, the upper and lower housing connection parts near the outer terminals are prone to expansion and deformation when tightened, resulting in unsightly wiring and reduced protection performance.

[0004] In view of this, there is an urgent need to design a contactor housing structure to overcome the defect of housing deformation that occurs in existing contactors during use. Utility Model Content

[0005] To solve the above problems, this utility model provides a contactor housing structure and a contactor.

[0006] In a first aspect, this utility model provides a contactor housing structure, including a housing body. The housing body includes a base and a top cover connected to each other. The housing body includes outer wiring groups located on both sides of the housing body, and each outer wiring group includes an outer wiring chamber. The housing body has an internal accommodating cavity. The base includes a base positioning sidewall, and side openings are provided at both ends of the base positioning sidewall. The side openings are located beside the outer wiring chambers. A first slot is provided at the bottom of the side openings. A second slot is provided on the side of the base positioning sidewall near the accommodating cavity. The second slot communicates with the side openings to form an L-shaped channel. The top cover includes a top cover positioning sidewall. A side sealing plate is provided on the top cover positioning sidewall opposite the side openings. A first insertion plate is provided at the bottom of the side sealing plate. The inner side of the side sealing plate is bent toward one side of the accommodating cavity to form a second insertion plate. The cross-section of the second insertion plate at the connection with the side sealing plate is L-shaped. The first insertion plate is connected in the first slot, and the second insertion plate is connected in the second slot.

[0007] In one possible implementation, the outer wiring chamber is provided with a support portion connected to the base, the side sealing plate is located outside the support portion, and the second plug-in plate is located on the side of the support portion near the receiving cavity.

[0008] In one possible implementation, the length of the second plug plate is shorter than the length of the side sealing plate.

[0009] In one possible implementation, the base positioning sidewall has a positioning end face opposite the upper cover positioning sidewall, the positioning end face has an extension, and the upper cover positioning sidewall abuts against the positioning end face.

[0010] In one possible implementation, one side of the base is a base positioning sidewall, one side of the top cover is a top cover positioning sidewall, and the outer wiring groups on both sides are a coil wiring group and a main circuit wiring group, respectively. Both the base positioning sidewall and the top cover positioning sidewall are located close to the main circuit wiring group.

[0011] In one possible implementation, both sides of the base are base positioning sidewalls, and both sides of the top cover are top cover positioning sidewalls.

[0012] In one possible implementation, the top cover includes a terminal wiring wall with a hook at the bottom, and the base includes a base with a slot opposite the hook, the hook being connected in the slot.

[0013] In one possible implementation, both the base and the top cover are integrally injection molded.

[0014] In one possible implementation, the base has a guide rail mounting groove at its bottom, and a locking member is connected to one side of the guide rail mounting groove, the locking member being connected to the base.

[0015] In a second aspect of this utility model, a contactor is provided, comprising the contactor housing structure described above, wherein a terminal block is connected to the outer wiring chamber, and an electromagnetic system is connected to the accommodating cavity.

[0016] Compared with the prior art, the technical solution provided by this utility model has the following advantages: In this technical solution, when the upper cover and base are closed, the first and second plug-in plates on the side sealing plate are inserted into the first and second slots of the base, respectively. This not only completes the vertical docking of the upper and lower housings but also achieves a deep horizontal fit at the connection between the upper cover and the base. The L-shaped plug-in structure provides robust and reliable support for the housing body, directly transferring the lateral expansion force that may be generated at the terminals to the more robust overall structure of the base through the plug-in plates, thereby effectively resisting deformation and preventing the housing from expanding. The L-shaped plug-in method changes the connection between the upper cover and the base from surface contact positioning to three-dimensional interlocking positioning, greatly increasing the contact area and mechanical interlocking strength at the connection of the housing body. This makes the overall rigidity of the housing body higher and more stable.

[0017] This technical solution prevents the contactor housing from expanding and deforming during external wiring. After installation and wiring, the contactor maintains its original appearance with a tight fit, without unsightly gaps or misalignments, meeting the aesthetic requirements of industrial products. This maintains the protection level of the product design and improves the reliability and service life of the contactor in harsh environments. Attached Figure Description

[0018] Figure 1 This is a perspective view of the contactor housing structure according to an embodiment of the present utility model.

[0019] Figure 2 This is an exploded view of the contactor housing structure according to an embodiment of the present utility model.

[0020] Figure 3 This is a front view of the contactor housing structure according to an embodiment of the present utility model.

[0021] Figure 4 for Figure 3 Sectional view of AA.

[0022] Figure 5 This is a perspective view of the base of an embodiment of the present utility model.

[0023] Figure 6 This is a perspective view of the top cover of an embodiment of the present utility model.

[0024] Figure 7 This is another perspective view of the contactor housing structure according to an embodiment of the present utility model.

[0025] Figure 8 This is an exploded view of the contactor in an embodiment of this utility model. Detailed Implementation

[0026] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model. The accompanying drawings are for illustrative purposes only, representing schematic diagrams only, not actual object drawings, and should not be construed as limiting this patent. To better illustrate the embodiments of this utility model, some components in the drawings may be omitted, enlarged, or reduced, and do not represent the actual product dimensions. It is understandable to those skilled in the art that some well-known structures and their descriptions may be omitted in the drawings.

[0027] Example 1

[0028] Combined with appendix Figure 1 To be continued Figure 7 As shown, the present invention relates to a contactor housing structure, comprising a housing body, wherein the housing body includes a base 1 and a top cover 2 connected to each other, the housing body includes outer wiring groups 3 located on both sides of the housing body, the outer wiring groups 3 including outer wiring chambers 31, the housing body interior including a receiving cavity 4, the base 1 including a base positioning sidewall 11, the base positioning sidewall 11 having side openings 12 at both ends, the side openings 12 being located beside the outer wiring chambers 31, the bottom of the side openings 12 having a first slot 13, and the base positioning sidewall 11 being close to the receiving cavity. A second slot 14 is provided on one side of the cavity 4. The second slot 14 is connected to the side opening 12 to form an L-shaped channel. The upper cover 2 includes an upper cover positioning sidewall 21. A side sealing plate 22 is provided on the upper cover positioning sidewall 21 opposite to the side opening 12. A first insertion plate 23 is provided at the bottom of the side sealing plate 22. The inner side of the side sealing plate 22 is bent toward one side of the accommodating cavity 4 to form a second insertion plate 24. The cross section of the second insertion plate 24 and the side sealing plate 22 is L-shaped. The first insertion plate 23 is connected in the first slot 13, and the second insertion plate 24 is connected in the second slot 14.

[0029] In this embodiment, the housing body is provided with a plurality of wiring groups, wherein the outermost wiring group 3 is located on the outermost side of the housing body. The outer wiring group 3 includes an outer wiring chamber 31 located on the inlet side and an outer wiring chamber 31 located on the outlet side.

[0030] In this embodiment, the outer wiring chamber 31 is connected to a wiring terminal, and the wiring terminal in the outer wiring chamber 31 can be a main circuit wiring terminal or a control circuit wiring terminal.

[0031] In this embodiment, as shown in the appendix Figure 2 As shown, the outer wiring chamber 31 is provided with a support part 32, which is connected to the base 1. The side sealing plate 22 is located outside the support part 32, and the second plug plate 24 is located on the side of the support part 32 near the receiving cavity 4. The support part 32 is used for bearing and positioning the wiring terminals.

[0032] In this embodiment, as shown in the appendix Figure 2 As shown, the length of the second plug-in plate 24 is shorter than the length of the side sealing plate 22.

[0033] In this embodiment, as shown in the appendix Figure 5 and attached Figure 6As shown, the base positioning sidewall 11 is provided with a positioning end face 111 at the position opposite to the upper cover positioning sidewall 21. The positioning end face 111 is provided with an extension 112. The upper cover positioning sidewall 21 abuts against the positioning end face 111. The extension 112 can further improve the protective performance of the connection between the base 1 and the upper cover.

[0034] In this embodiment, as shown in the appendix Figure 1 To be continued Figure 6 As shown, one side of the base 1 is the base positioning sidewall 11, and one side of the upper cover 2 is the upper cover positioning sidewall 21. The outer wiring groups 3 on both sides are the coil wiring group 33 and the main circuit wiring group 34, respectively. The base positioning sidewall 11 and the upper cover positioning sidewall 21 are both located close to the main circuit wiring group 34.

[0035] In this embodiment, as shown in the appendix Figure 2 Appendix Figure 5 and attached Figure 6 As shown, the upper cover 2 includes a terminal wiring wall 25, and a hook 26 is provided at the bottom of the terminal wiring wall 25. The base 1 includes a base 15, and a slot 16 is provided on the base 15 opposite to the hook 26. The hook 26 is connected in the slot 16. The hook 26 and the slot 16 engage to achieve the vertical positioning of the upper cover 2 and the base 1.

[0036] In this embodiment, as shown in the appendix Figure 5 and attached Figure 6 As shown, both the base 1 and the upper cover 2 are integrally injection molded.

[0037] In this embodiment, as shown in the appendix Figure 7 As shown, the bottom of the base 1 is provided with a guide rail mounting groove 17, and a locking member 5 is connected to one side of the guide rail mounting groove 17. The locking member 5 is connected to the base 1 and is used for positioning the base connected to the external guide rail.

[0038] In this embodiment, when the upper cover 2 and the base 1 are closed, the first plug-in plate 23 and the second plug-in plate 24 on the side sealing plate 22 are respectively inserted into the first slot 13 and the second slot 14 of the base 1. This not only completes the vertical docking of the upper and lower housings, but also achieves a deep fit in the horizontal direction at the connection between the upper cover 2 and the base 1. The L-shaped plug-in structure provides a solid and reliable support for the housing body, directly transferring the lateral expansion force that may be generated at the terminal block to the more robust overall structure of the base through the plug-in plate, thereby effectively resisting deformation and preventing the housing from expanding. The L-shaped plug-in method changes the connection between the upper cover 2 and the base 1 from surface contact positioning to three-dimensional interlocking positioning, which greatly increases the contact area and mechanical interlocking strength at the connection of the housing body, making the overall rigidity of the housing body higher and more stable.

[0039] Example 2

[0040] Unlike Embodiment 1, the present invention provides a different contactor housing structure. Both sides of the base 1 are base positioning sidewalls 11, and both sides of the upper cover 2 are upper cover positioning sidewalls 21. That is, both sides of the housing body are positioned and connected by positioning sidewalls. The rest is the same as the contactor housing structure of Embodiment 1, and will not be described again.

[0041] In this embodiment, considering that the terminals in the coil wiring group 33 may be connected to the terminals in the main circuit wiring group 34, and considering that both sides of the housing body may be the main circuit wiring group 34, the side wall of the base 1 and the side wall of the top cover 2 adopt the structure of the base positioning side wall 11 and the structure of the top cover positioning side wall 21, respectively.

[0042] Example 3

[0043] Combined with appendix Figure 1 To be continued Figure 8 As shown, the present invention is a contactor, including the contactor housing structure described in Embodiment 1 or Embodiment 2, wherein the outer wiring chamber 31 is connected to a wiring terminal 6, and the accommodating cavity 4 is connected to an electromagnetic system 7.

[0044] In this embodiment, the contactor housing structure avoids housing expansion and deformation during external wiring. After installation and wiring, the contactor can maintain its original appearance with a tight fit, without unsightly gaps or misalignments, meeting the aesthetic requirements of industrial products. This maintains the protection level of the product design and improves the reliability and service life of the contactor in harsh environments.

[0045] Obviously, the above embodiments of this utility model are merely examples for clearly illustrating this utility model, and are not intended to limit the implementation of this utility model. Those skilled in the art can make other variations or modifications based on the above description. It is neither necessary nor possible to exhaustively list all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this utility model, or direct / indirect applications in other related technical fields, should be included within the scope of protection of the claims of this utility model.

Claims

1. A contactor housing structure, comprising a housing body, the housing body including a base and a top cover connected to each other, the housing body including outer wiring assemblies located on both sides of the housing body, the outer wiring assemblies including outer wiring chambers, and the housing body including an accommodating cavity inside, characterized in that, The base includes a base positioning sidewall with side openings at both ends. The side openings are located beside the outer wiring chamber. A first slot is provided at the bottom of the side opening. A second slot is provided on the side of the base positioning sidewall near the receiving cavity. The second slot is connected to the side opening to form an L-shaped channel. The top cover includes a top cover positioning sidewall with a side sealing plate opposite the side opening. A first insertion plate is provided at the bottom of the side sealing plate. The inner side of the side sealing plate is bent toward one side of the receiving cavity to form a second insertion plate. The cross-section of the second insertion plate at the connection with the side sealing plate is L-shaped. The first insertion plate is connected in the first slot, and the second insertion plate is connected in the second slot.

2. The contactor housing structure according to claim 1, characterized in that, The outer wiring chamber is provided with a support part, which is connected to the base. The side sealing plate is located on the outside of the support part, and the second plug-in plate is located on the side of the support part near the receiving cavity.

3. The contactor housing structure according to claim 1, characterized in that, The length of the second plug plate is shorter than the length of the side sealing plate.

4. The contactor housing structure according to claim 1, characterized in that, The base positioning sidewall is provided with a positioning end face opposite the upper cover positioning sidewall, and the positioning end face is provided with an extension portion, and the upper cover positioning sidewall abuts against the positioning end face.

5. A contactor housing structure according to claim 1, characterized in that, One side of the base is a base positioning sidewall, and one side of the top cover is a top cover positioning sidewall. The outer wiring groups on both sides are the coil wiring group and the main circuit wiring group, respectively. The base positioning sidewall and the top cover positioning sidewall are both located close to the main circuit wiring group.

6. A contactor housing structure according to claim 1, characterized in that, Both sides of the base are base positioning sidewalls, and both sides of the top cover are top cover positioning sidewalls.

7. A contactor housing structure according to any one of claims 1 to 6, characterized in that, The top cover includes a terminal wiring wall, the bottom of which is provided with a hook, and the base includes a base, the base having a slot opposite the hook, the hook being connected in the slot.

8. A contactor housing structure according to any one of claims 1 to 6, characterized in that, Both the base and the top cover are integrally injection molded.

9. A contactor housing structure according to any one of claims 1 to 6, characterized in that, The bottom of the base is provided with a guide rail mounting groove, and a locking component is connected to one side of the guide rail mounting groove. The locking component is connected to the base.

10. A contactor, characterized in that, The contactor housing structure includes any one of claims 1 to 9, wherein the outer wiring chamber is connected to a wiring terminal, and the accommodating cavity is connected to an electromagnetic system.

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