Housing and relay

Abstract

The present disclosure provides a housing and a relay, which relate to the technical field of electric power equipment. The housing includes a first case (1) and a second case (2), the second case (2) is disposed opposite the first case (1) and connected to each other, one of the first case (1) and the second case (2) is provided with a buckle (11) and a flexible deformation portion (12), and the other is provided with an engagement portion (21), the buckle (11) is configured to selectively engage with the engagement portion (21), and the flexible deformation portion (12) at least partially covers the periphery of the buckle (11) and is used for flexibly deforming the buckle (11). The flexible deformation portion (12) improves the flexibility of the buckle (11), forming an elastic buckle structure that makes the buckle (11) more easily deformable during the process of joining the first case (1) and the second case (2), reducing stress at the location where the engagement between the first case (1) and the second case (2) is weak.

Description

[Technical Field]

[0001] [Cross-Citation of Related Applications] This disclosure claims priority to a Chinese patent application filed on October 12, 2022, bearing application number 202222685474.7 and entitled "Housing and Relay," the entire contents of which are incorporated herein by reference.

[0002] The present disclosure relates to a housing and a relay. [Background technology]

[0003] A relay is an electronic control element, an electrical device that causes a predetermined step change in a controlled quantity in an electrical output circuit when the change in the input quantity reaches a specified requirement.

[0004] The relay housing serves to mount and protect the internal components, and all six sides of the housing must be protected, making it impossible to construct it as a single unit. Generally, the housing is made up of two separate parts, which are fastened together by a buckle or other fastening method. However, the buckle structure is relatively weak at the buckle location, making it prone to cracks during assembly, which can affect the reliability of the entire relay. Summary of the Invention

[0005] The present disclosure provides a housing and relay that reduces the risk of cracking and improves structural stability.

[0006] According to one aspect of the present disclosure, a housing is provided, comprising: A first case and a second case are provided, the second case is disposed opposite the first case and connected to each other, one of the first case and the second case is provided with a buckle and a flexible deformation portion, and the other is provided with an engagement portion, and the buckle is configured to be selectively engaged with the engagement portion; The flexibly deformable portion is provided to at least partially cover and surround the periphery of the buckle, and is used for flexibly deforming the buckle.

[0007] According to one embodiment of the present disclosure, the flexible deformation portion is a through hole having an open end, and the open end of the through hole faces the buckle.

[0008] According to one embodiment of the present disclosure, the cross section of the through hole is one of U-shaped, C-shaped, and V-shaped.

[0009] According to one embodiment of the present disclosure, the buckle includes an extension arm and a buckle head, one end of the extension arm is connected to one of the first case and the second case, the other end of the extension arm is provided with the buckle head, and the buckle head is selectively engaged with the engagement portion, The flexible deformation portion is provided so as to surround the periphery of the extension arm.

[0010] According to one embodiment of the present disclosure, the engagement portion is an engagement groove or an engagement hole.

[0011] According to one embodiment of the present disclosure, the number of the buckles, the flexible deformation portions, and the engaging portions is plural, the plural buckles are arranged surrounding the periphery of the first case, the plural buckles are engaged corresponding to the plural engaging portions, and the plural flexible deformation portions are arranged corresponding to the plural buckles.

[0012] According to one embodiment of the present disclosure, the device further includes a protective part connected to one of the first case and the second case, the protective part being wrapped around at least a portion of the buckle.

[0013] According to one embodiment of the present disclosure, the protective portion is a rib structure.

[0014] According to one embodiment of the present disclosure, the protective portion has a U-shaped structure, and an open end of the U-shaped structure is disposed toward the buckle.

[0015] According to one embodiment of the present disclosure, the protective portion is provided with chamfers at corner locations.

[0016] According to one embodiment of the present disclosure, a gap is provided between the protective portion and the buckle, and the gap forms at least a part of the flexible deformation portion.

[0017] According to one embodiment of the present disclosure, at least one of the first case and the second case includes a side plate, the side plate is provided with a plurality of buckles, both ends of the protective part are connected to the side plate, and the protective part is wrapped around the plurality of buckles.

[0018] According to a second aspect of the present disclosure, an embodiment of the present disclosure also provides a relay including the housing described above.

[0019] An embodiment of the present disclosure has the following advantages or beneficial effects.

[0020] The housing provided by the present disclosure has a first case and a second case that are separate structures, with the second case disposed opposite the first case and connected to each other, forming an accommodation space for the relay's internal components and protecting them. One of the first case and the second case is provided with a buckle, and the other is provided with an engagement portion. The first case and the second case are secured together by engaging the buckle with the engagement portion. The buckle selectively engages with the engagement portion, facilitating attachment and detachment of the first case and the second case. A flexible deformation portion is provided around at least a portion of the periphery of the buckle, increasing the flexibility of the buckle, forming an elastic buckle structure that makes it easier for the buckle to deform during the mating process of the first case and the second case. This reduces the force applied to the first case and the second case at positions where the engagement is weak, reducing the risk of cracking. The flexible deformation portion at least partially covers the buckle, increasing the covering area of ​​the flexible deformation portion on the buckle and maximizing the flexibility effect of the buckle.

[0021] The relay provided by the present disclosure has a housing in which the first and second cases of the housing are separate structures, the second case facing the first case, and connected to each other, forming an accommodation space for the relay's internal components and protecting them. One of the first and second cases is provided with a buckle, and the other is provided with an engagement portion. The first and second cases are secured together by engaging the buckle with the engagement portion. The buckle selectively engages with the engagement portion, facilitating attachment and detachment of the first and second cases. At least a portion of the periphery of the buckle is provided with a flexible deformation portion surrounding the buckle, which increases the flexibility of the buckle, forming an elastic buckle structure that makes it easier for the buckle to deform during the mating process of the first and second cases. This reduces the force applied to the first and second cases at weaker engagement points, reducing the risk of cracking. The flexible deformation portion at least partially covers the buckle, increasing the covering area of ​​the flexible deformation portion on the buckle and maximizing the flexibility effect of the buckle. [Brief explanation of the drawings]

[0022] These and other features and advantages of the present disclosure will become more apparent from the detailed description of illustrative embodiments thereof with reference to the drawings. [Figure 1] 1A and 1B are structural schematic diagrams of a housing according to an embodiment of the present disclosure; [Figure 2] 1 illustrates an exploded view of a housing according to an embodiment of the present disclosure. [Figure 3] 1 illustrates a partial cross-sectional view of a housing according to an embodiment of the present disclosure. [Figure 4] FIG. 4 shows an enlarged view of part A in FIG. [Figure 5] 10A and 10B are structural schematic diagrams showing a buckle and a flexible deformation portion on a housing according to an embodiment of the present disclosure;

[0023] The symbols are as follows:

[0024] 1, the first case; 2, the second case; 3, the protective part; 11, buckle; 111, extension arm; 112, buckle head; 12, flexible deformation part; 13, connection part; 14, side plate; 15, notch; 16, gap; 21. Engagement portion. DETAILED DESCRIPTION OF THE INVENTION

[0025] Next, exemplary embodiments will be described in more detail with reference to the drawings. However, the exemplary embodiments may be embodied in various forms and should not be understood as being limited to the embodiments described herein. Although relative terms such as "upper" and "lower" are used herein to describe the relative relationship between one component and another component shown in the figures, these terms are used herein only for convenience, such as according to the exemplary orientation shown in the figures. It will be understood that if the device shown in the figures is turned upside down, the component described as "upper" would become the "lower" component. Other relative terms such as "top" and "bottom" have similar meanings. When a structure is "upper" of another structure, this may mean that the structure is integrally formed on the other structure, or that the structure is "directly" disposed on the other structure, or that the structure is "indirectly" disposed on the other structure via another structure.

[0026] The terms "a," "an," "the," and "said" are used to indicate the presence of one or more elements / components etc. The terms "comprise" and "have" are used to indicate an open inclusion and mean that there may be additional elements / components etc. in addition to the listed elements / components etc. The terms "first," "second," etc. are used as markers only and not as quantitative limitations on their subject matter.

[0027] This embodiment provides a housing, and as shown in Figures 1 and 2, this housing includes a first case 1 and a second case 2, the second case 2 being disposed opposite the first case 1 and connected to each other, one of the first case 1 and the second case 2 being provided with a buckle 11 and the other being provided with an engagement portion 21, and the buckle 11 being configured to be selectively engaged with the engagement portion 21. Here, the first case 1 and the second case 2 are also referred to as an upper case and a lower case.

[0028] The housing provided in this embodiment has a first case 1 and a second case 2 that are separate structures, with the second case 2 disposed opposite the first case 1 and connected to each other, so that the first case 1 and the second case 2 form an accommodation space that provides accommodation space for and protects the internal components of the relay. One of the first case 1 and the second case 2 is provided with a buckle 11, and the other is provided with an engagement portion 21. The first case 1 and the second case 2 are fixed together by engaging the buckle 11 with the engagement portion 21. Selective engagement of the buckle 11 with the engagement portion 21 facilitates attachment and detachment of the first case 1 and the second case 2.

[0029] If the joints between the buckle 11 and the engagement portion 21 of the first case 1 and the second case 2 are relatively weak, cracks are likely to occur during the assembly process. For this reason, in the housing provided in this embodiment, the case in which the buckle 11 is provided, of the first case 1 and the second case 2, is provided with a flexible deformation portion 12, which at least partially covers the periphery of the buckle 11 and allows the buckle 11 to flexibly deform.

[0030] The housing provided in this embodiment has a flexible deformation portion 12 surrounding at least a portion of the periphery of the buckle 11. The flexible deformation portion 12 increases the flexibility of the buckle 11, forming an elastic buckle structure at this time, making the buckle 11 more easily deformable during the mating process of the first case 1 and the second case 2, reducing the force applied to the first case 1 and the second case 2 at positions of weak engagement and reducing the risk of cracking. The flexible deformation portion 12 at least partially covers the buckle 11, increasing the coverage area of ​​the flexible deformation portion 12 on the buckle 11 and maximizing the flexibility effect of the buckle 11.

[0031] It should be noted in particular that the engagement portion 21 is an engagement groove or an engagement hole. Specifically, the engagement portion 21 may be an engagement groove in which the inner wall of the first case 1 or the second case 2 is recessed in a direction away from the buckle 11, and the buckle 11 extends at least partially into the engagement groove and abuts against the groove wall of the engagement groove. The engagement portion 21 may also be an engagement hole having a through-hole structure, and the buckle 11 extends at least partially into the engagement hole and abuts against the inner wall of the engagement hole. In this embodiment, the specific shape of the engagement portion 21 is not limited, and any shape that can provide an engagement position for the buckle 11 is included in the scope of protection of this embodiment.

[0032] It is understood that the engagement hole may be a rectangular hole or a hole structure of other shapes, and the specific shape thereof can be adjusted according to the actual production conditions.

[0033] In this embodiment, the flexibly deformable portion 12 is a through hole with one end open, and the open end of the through hole is provided toward the buckle 11 .

[0034] Here, the flexible deformation portion 12 is a through hole, which corresponds to directly drilling a through hole in the first case 1 and the second case 2 to achieve flexible deformation of the buckle 11. This has a simple structure, simplifies the processing process, and reduces manufacturing costs. If the through hole has a ring structure, it is provided around the buckle 11, and the through hole acts to directly cut the buckle 11 out of the first case 1 or the second case 2, thereby eliminating the need for a fixed position for the buckle 11. Therefore, by setting the open end of the through hole toward the buckle 11, the through hole has an open end, which prevents the through hole's closed ring structure from affecting the fixed position of the buckle 11. In this case, the through hole can provide flexible deformation for the buckle 11 without affecting the positional stability of the buckle 11.

[0035] The flexibly deforming portion 12 is a through-hole with one open end, and this through-hole essentially has a slit structure with a relatively narrow width, which allows the flexibly deforming of the buckle 11. At the same time, the slit partially surrounds the buckle 11, i.e., a semi-enclosing structure is adopted, which prevents the fixed position of the buckle 11 from becoming unstable.

[0036] In one embodiment, the cross section of the through hole is one of U-shaped, C-shaped, and V-shaped.

[0037] By opening a "U-shaped," "C-shaped," or "V-shaped" through-hole around the position of the buckle 11, the through-hole forms an accommodation space for accommodating the buckle 11. The opening position of the through-hole can be understood as the connection position between the buckle 11 and the first case 1 or the second case 2.

[0038] It is particularly important to note that the through holes are not limited to regular structures such as U-shaped, C-shaped, or V-shaped, but may have other irregular structures, and as long as they have an opening, they are within the scope of protection of this embodiment.

[0039] In this embodiment, as shown in Figures 2 to 4, the buckle 11 comprises an extension arm 111 and a buckle head 112, one end of the extension arm 111 is connected to one of the first case 1 and the second case 2, the other end of the extension arm 111 is provided with the buckle head 112, the buckle head 112 is selectively engaged with the engagement portion 21, and the flexible deformation portion 12 is provided surrounding the periphery of the extension arm 111.

[0040] The extension arm 111 functions as an intermediate connection between the housing and the buckle head 112, and extends along the edge of the first case 1 or the second case 2 to form an extension end, which allows the buckle head 112 to approach the engagement portion 21 and facilitates connection between the buckle head 112 and the engagement portion 21. The buckle head 112 of the buckle 11 is at a position where it is substantially engaged with and connected to the engagement portion 21, and the extension arm 111 of the buckle 11 provides a substantially fixed position for the buckle head 112. The flexible deformation portion 12 is disposed around the extension arm 111, allowing the free end of the extension arm 111 to move relative to the first case 1 or the second case 2, which allows a certain amount of elastic deformation and provides a movable amount for the buckle head 112 and the engagement portion 21 to engage with each other, preventing the buckle head 112 and the engagement portion 21 from tearing during docking.

[0041] In this embodiment, there are a plurality of buckles 11, flexibly deforming portions 12, and engaging portions 21, and the plurality of buckles 11 are engaged with corresponding to the plurality of engaging portions 21, and the plurality of flexibly deforming portions 12 are provided corresponding to the plurality of buckles 11.

[0042] When the first case 1 and the second case 2 are connected, multiple flexible deformation sections 12 are arranged corresponding to multiple buckles 11, so there are multiple connection positions between the first case 1 and the second case 2, improving the fixing effect between the first case 1 and the second case 2.

[0043] Since multiple buckles 11 are arranged around the periphery of first case 1, the periphery of first case 1 can be firmly fixed in place, and the overall balance of the structure is good. Since multiple flexibly deforming portions 12 are arranged corresponding to multiple buckles 11, each buckle 11 corresponds to a flexibly deforming portion 12, and the amount of flexibly deformation of each buckle 11 can be ensured.

[0044] In this embodiment, as shown in Figures 2 and 5, the housing further includes a protective part 3 connected to one of the first case 1 and the second case 2, and the protective part 3 is wrapped around at least a portion of the buckle 11.

[0045] The first case 1 or the second case 2 provides an attachment position for the protective part 3, and the protective part 3 is wrapped around at least a portion of the buckle 11, which is equivalent to the protective part 3 being arranged around the buckle 11. The protective part 3 serves to protect the buckle 11, preventing the buckle 11 from being hit during transportation or distribution, and achieving the purpose of extending the service life of the buckle 11.

[0046] In this embodiment, the protective portion 3 has a rib structure. The protective portion 3 employs a rib structure, which has a simple structure and is relatively inexpensive to manufacture.

[0047] If the corners of the protective part 3 are right-angled, they are relatively sharp and prone to scratches. Therefore, chamfering the corners of the protective part 3, i.e., making the corners of the protective part 3 relatively smooth, plays a role in smooth transition and reduces the risk of scratches due to hard contact.

[0048] In this embodiment, the protective part 3 has a U-shaped structure, the internal space of the protective part 3 provides a storage space for the buckle 11, the side walls of the protective part 3 serve to protect the exterior of the buckle 11, and the open end of the U-shaped structure is disposed toward the buckle 11. The open end of the U-shaped structure is used to make it easier to insert the buckle 11 into the protective part 3.

[0049] The U-shaped protective portion 3 corresponds to half of a rectangular ring, i.e., the rectangular ring is cut along its longitudinal central axis to obtain two half-ring structures, which become the U-shaped protective portion 3 and can encase at least a portion of the buckle 11.

[0050] In this embodiment, at least one of the first case 1 and the second case 2 has a side plate 14, and the side plate 14 is provided with a plurality of buckles 11, and both ends of the protective part 3 are connected to the side plate 14, and the protective part 3 is wrapped in the plurality of buckles 11.

[0051] Each side panel 14 is provided with a plurality of buckles 11 to ensure the fixing effect of each side panel 14. By wrapping the protective part 3 around the plurality of buckles 11, the protective part 3 can surround the positions of two buckles 11 at the same time.

[0052] For example, two buckles 11 are provided on a side panel 14, and the two buckles 11 are provided at both ends of the side panel 14 along the extension direction of the side panel 14. In this case, a connecting part 13 extends from one edge of the side panel 14 close to the buckle 11, and the connecting part 13 is provided between the two buckles 11 to serve as an intermediate connection. It can be seen that both ends of the protective part 3 are connected to both ends of the side panel 14 and are located outside the two buckles 11, and the intermediate part of the protective part 3 is connected to the connecting part 13, thereby ensuring the stability of the connection between the protective part 3 and the side panel 14.

[0053] Since the through hole is enclosed by at least a part of the buckle 11 and the protective part 3 is enclosed by at least a part of the buckle 11, a gap 16 is provided between the protective part 3 and the buckle 11 to prevent interference between the through hole and the setting position of the protective part 3, and the gap 16 forms at least a part of the flexible deformation part 12.

[0054] That is, along the height direction of the first case 1, the protective part 3 and the buckle 11 do not come into contact with each other on their adjacent sides, but a certain gap 16 exists between them, and the protective part 3 and the buckle 11 are arranged offset from each other. In this case, the gap 16 forms a bottom space of the U-shaped through hole. Along the extension direction of the first case 1, the protective part 3 and the buckle 11 do not come into contact with each other on their adjacent sides, but a certain gap 16 exists between them, and the protective part 3 and the buckle 11 are arranged offset from each other. In this case, the gap 16 forms one side wall space of the U-shaped through hole. Along the extension direction of the first case 1, the connecting part 13 and the buckle 11 do not come into contact with each other on their adjacent sides, but a certain gap 16 exists between them, and the connecting part 13 and the buckle 11 are arranged offset from each other. In this case, the gap 16 forms the other side wall space of the U-shaped through hole.

[0055] It is understood that the protective part 3 and the side plate 14 may be integrally molded, or may be separate structures. When the protective part 3 and the side plate 14 are integrally molded, a through-hole is opened around the buckle 11 at the lower end of the side plate 14, and the portion of the side plate 14 located at the lower end of the through-hole becomes the protective part 3. When the protective part 3 and the side plate 14 are separate structures, the buckle 11 is machined on the side plate 14, and a notch 15 is opened between the buckle 11 and the connecting part 13. The notch 15 has a strip-like structure, and the protective part 3 simultaneously surrounds the two buckles 11. The sides where the protective part 3 and the buckle 11 are adjacent do not directly contact each other, but have a certain gap 16. The gap 16 has an "_" or "L" shape. In this case, the gap 16 and the notch 15 together form a U-shaped through-hole.

[0056] Another aspect of the present disclosure provides a relay including the housing described above.

[0057] The housing provided by the present disclosure has a first case 1 and a second case 2 that are separate structures, and the second case 2 is disposed opposite the first case 1 and connected to each other, forming a single storage space together to provide storage space for and protect the internal components of the relay. One of the first case 1 and the second case 2 is provided with a buckle 11, and the other is provided with an engagement portion 21, and the buckle 11 is configured to engage with the engagement portion 21 to secure the first case 1 and the second case 2 together. The buckle 11 selectively engages with the engagement portion 21 to facilitate attachment and detachment between the first case 1 and the second case 2.

[0058] A flexible deformation portion 12 is at least partially provided around the buckle 11, which improves the flexibility of the buckle 11. At this time, an elastic buckle 11 structure is formed, which makes the buckle 11 more easily deformable during the process of joining the first case 1 and the second case 2, reducing stress on areas where the engagement between the first case 1 and the second case 2 is weak and reducing the risk of cracks. The flexible deformation portion 12 at least partially covers the buckle 11, increasing the coverage area of ​​the flexible deformation portion 12 on the buckle 11 and maximizing the flexibility effect of the buckle 11.

[0059] It is understood that the housing is mainly used to house the internal components of the relay, such as the electromagnetic unit, the moving contacts, and the fixed contacts.

[0060] It is to be understood that the present disclosure is not limited in its application to the precise construction and arrangement of components set forth herein. The present disclosure is capable of other embodiments and can be realized and carried out in various ways. Such variations and modifications are within the scope of the present disclosure. The present disclosure as disclosed and limited herein will be understood to cover all alternative combinations of two or more individual features mentioned or apparent in the text and / or drawings. All these different combinations constitute multiple alternative aspects of the present disclosure. The embodiments described herein represent the best modes known for carrying out the present disclosure and will enable others skilled in the art to utilize the present disclosure.

Claims

1. The device comprises a first case (1) and a second case (2), The second case (2) is disposed opposite the first case (1) and is connected to each other, one of the first case (1) and the second case (2) is provided with a buckle (11) and a flexible deformation portion (12), and the other is provided with an engagement portion (21), and the buckle (11) is configured to be selectively engaged with the engagement portion (21); The flexible deformation portion (12) at least partially covers the periphery of the buckle (11) and is used for flexible deformation of the buckle (11). A housing characterized by:

2. The flexible deformation portion (12) is a through hole with one end open, and the open end of the through hole faces the buckle (11). The housing of claim 1 .

3. The cross section of the through hole is either U-shaped, C-shaped, or V-shaped.

3. The housing of claim 2.

4. The buckle (11) includes an extension arm (111) and a buckle head (112), one end of the extension arm (111) is connected to one of the first case (1) and the second case (2), and the other end of the extension arm (111) is provided with the buckle head (112), which is selectively engaged with the engagement portion (21); The flexible deformation portion (12) is provided so as to surround the periphery of the extension arm (111). The housing of claim 1 .

5. The engaging portion (21) is an engaging groove or an engaging hole. The housing of claim 1 .

6. The number of the buckles (11), the flexible deformation portions (12) and the engaging portions (21) is plural, the plural buckles (11) are provided surrounding the periphery of the first case (1), the plural buckles (11) are engaged with the plural engaging portions (21) corresponding to each other, and the plural flexible deformation portions (12) are provided corresponding to each other. The housing of claim 1 .

7. The device further includes a protective part (3) connected to one of the first case (1) and the second case (2), the protective part (3) being wrapped around at least a part of the buckle (11). The housing according to any one of claims 1 to 6.

8. The protective part (3) has a rib structure.

8. The housing of claim 7.

9. The protective part (3) has a U-shaped structure, and the open end of the U-shaped structure is provided toward the buckle (11).

8. The housing of claim 7.

10. The protective portion (3) has chamfers at its corners.

8. The housing of claim 7.

11. A gap is provided between the protective portion (3) and the buckle (11), and the gap forms at least a part of the flexible deformation portion (12).

8. The housing of claim 7.

12. At least one of the first case (1) and the second case (2) includes a side plate (14), the side plate (14) is provided with a plurality of buckles (11), both ends of the protective part (3) are connected to the side plate (14), and the protective part (3) is wrapped around the plurality of buckles (11).

8. The housing of claim 7.

13. A housing according to any one of claims 1 to 12. A relay characterized by:

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