A housing assembly for a relay protection device and a relay protection device

Abstract

The utility model provides a kind of shell assembly and relay protection device for relay protection device.It includes front cover and the rear shell body of cooperation assembly with front cover, front cover includes front panel and first recess structure, first recess structure is set to the edge of front panel, first recess structure has oppositely arranged first outer cooperation plate and first inner cooperation plate, first outer cooperation plate and first inner cooperation plate are perpendicular to front panel, first direction is perpendicular to the direction of front panel;Rear shell body includes protruding part and cover body, protruding part is located at the edge of cover body and protrudes in second direction in cover body, second direction is perpendicular to first direction, protruding part has second outer cooperation plate, under the condition that second outer cooperation plate is inserted in first recess structure, first outer cooperation plate covers second outer cooperation plate and protrudes in the direction of first outer cooperation plate towards cover body in second outer cooperation plate.

Description

Technical Field

[0001] This utility model relates to the field of power systems, and in particular to a housing assembly for a relay protection device and the relay protection device. Background Technology

[0002] Relay protection devices are important components of power systems. When a fault occurs in a power component (such as a generator or line) or the power system itself, endangering the safe operation of the power system, the relay protection device can promptly issue a warning signal to the operating personnel or directly issue a trip command to the controlled circuit breaker to terminate these events.

[0003] Relay protection devices are typically installed in cabinets and waterproofed via sealing rings. However, this method increases material management, production costs, and labor assembly costs. Utility Model Content

[0004] In view of this, the present invention proposes a housing assembly for a relay protection device, which includes a front cover and a rear housing assembled with the front cover. The front cover includes a front panel and a first groove structure. The first groove structure is disposed on the edge of the front panel. The first groove structure has a first outer mating plate and a first inner mating plate disposed opposite to each other. The first outer mating plate and the first inner mating plate are both perpendicular to the front panel, and the first direction is the direction perpendicular to the front panel.

[0005] The rear housing includes a protrusion and a cover. The protrusion is located at the edge of the cover and protrudes from the cover in a second direction perpendicular to the first direction. The protrusion has a second outer mating plate. When the second outer mating plate is inserted into the first groove structure, the first outer mating plate covers the second outer mating plate and the first outer mating plate protrudes from the second outer mating plate in the direction toward the cover.

[0006] By setting a front cover with a first groove structure and a rear shell with a protrusion, when the second outer mating plate is inserted into the first groove structure, the first outer mating plate covers the second outer mating plate and the first outer mating plate protrudes from the second outer mating plate in the direction toward the cover. In this way, liquid is not easy to flow into the gap between the first outer mating plate and the second outer mating plate. Waterproofing can be achieved through the structure of the relay protection device without additional assembly steps.

[0007] Optionally, according to the housing assembly described above, the second outer mating plate fits tightly with the first groove structure. This not only facilitates the installation of the front cover and the rear housing, but also minimizes the gap between the first and second outer mating plates, preventing liquid from easily entering.

[0008] Optionally, according to the housing assembly described above, the cover is cubic in shape and has a receiving space, and each side of the cover extending along the first direction has an arcuate groove. By providing the arcuate groove to avoid fixing members, the structure of the relay protection device is made as compact as possible, thereby miniaturizing the relay protection device.

[0009] Optionally, according to the housing assembly described above, the protrusion further includes a second inner mating plate disposed opposite to the second outer mating plate, wherein the first inner mating plate can be inserted between the second outer mating plate and the second inner mating plate. The presence of the second inner mating plate is equivalent to adding an extra bend, thus creating multiple bends at the edge of the housing assembly of the relay protection device, making it difficult for liquid to enter and achieving a waterproof effect.

[0010] Optionally, according to the housing assembly described above, the first outer mating plate is parallel to the second outer mating plate. This structure facilitates manufacturing and assembly.

[0011] According to the housing assembly described above, optionally, the thickness of the first outer mating plate on the side facing the rear housing is greater than the thickness on the other side. The inner wall of the first outer mating plate is inclined, and the outer wall of the first outer mating plate is parallel to the first direction. The outer wall of the second outer mating plate matches the shape of the inner wall of the first outer mating plate. In the second direction, the height of the side of the second outer mating plate facing the cover is lower than the height of the side of the second outer mating plate away from the cover. This makes it difficult for liquid to enter the bottom of the first groove structure, achieving a waterproof effect.

[0012] According to the housing assembly described above, optionally, the first groove structure is arranged around the edge of the front panel, and the protrusion is arranged around the edge of the cover, so that the waterproof effect can be activated in all directions; and / or

[0013] The side of the second outer mating plate facing the first outer mating plate and the cover is arc-shaped. Due to the effect of the arc-shaped edge, liquid is not easy to enter the inside, which is beneficial for waterproofing.

[0014] According to the housing assembly described above, optionally, the front panel is integrally formed with the first recessed structure and / or the protrusion is integrally formed with the cover. This eliminates the need for additional steps to assemble the protrusion and the cover, facilitating manufacturing.

[0015] Optionally, according to the housing assembly described above, the front cover has at least one first fixing hole, the protrusion has at least one second fixing hole, and the fastener can pass through one first fixing hole and one second fixing hole, the second fixing hole being located inside the second inner mating plate. This fixing method facilitates assembly.

[0016] This utility model also provides a relay protection device, including the housing assembly for relay protection devices described in any of the above claims. Attached Figure Description

[0017] The preferred embodiments of the present invention will now be described in detail with reference to the accompanying drawings, so that those skilled in the art can more clearly understand the above and other features and advantages of the present invention, in which:

[0018] Figure 1 This is a schematic diagram of the split structure of the housing assembly of a relay protection device according to an embodiment of the present invention.

[0019] Figure 2 This is a schematic diagram of the assembled housing assembly of the relay protection device according to this utility model.

[0020] Figure 3 for Figure 2 A schematic diagram of the cross-sectional structure.

[0021] Figure 4 This is a cross-sectional structural diagram of the housing assembly of a relay protection device according to another embodiment.

[0022] The reference numerals in the attached figures are as follows:

[0023] 1-Front Cover

[0024] 10-Front Panel

[0025] 11-First Groove Structure

[0026] 111-First outer mating plate

[0027] 112-First Inner Fitting Plate

[0028] 12-First fixing hole

[0029] 2-Rear housing

[0030] 21-Protrusion

[0031] 211-Second outer mating plate

[0032] 2111-Curved edge

[0033] 212-Second Inner Fitting Plate

[0034] 22-Cover

[0035] 221-Arc groove

[0036] 23-Second fixing hole

[0037] 3-Factors

[0038] 4-Outer Panel Detailed Implementation

[0039] To make the objectives, technical solutions, and advantages of this utility model clearer, the following embodiments are provided to further illustrate this utility model in detail. The nouns and pronouns referring to "person" in this patent application are not limited to specific genders.

[0040] This utility model provides a housing assembly for a relay protection device, which achieves waterproofing of the relay protection device through structural cooperation.

[0041] like Figure 1 The diagram shown is a schematic representation of the split structure of the housing assembly of the relay protection device according to this utility model. Figure 2 The diagram shown is a structural schematic of the assembled housing assembly of the node protection device according to this utility model. Figure 3 As shown, Figure 2 A schematic diagram of the cross-sectional structure.

[0042] like Figures 1 to 3 As shown, the housing assembly for the relay protection device includes a front cover 1 and a rear housing 2, which can be fitted together and assembled.

[0043] The front cover 1 includes a front panel 10 and a first groove structure 11. The first groove structure 11 is disposed on the edge of the front panel 10 and has a first outer mating plate 111 and a first inner mating plate 112 disposed opposite to each other. Both the first outer mating plate 111 and the first inner mating plate 112 are perpendicular to the front panel 10. For ease of description, the direction perpendicular to the front panel 10 is referred to as the first direction D1. The front panel 10 may have several holes for placing buttons or displays, or for accommodating related components that pass through the front panel 10. As an example, the first groove structure 11 is equivalent to a stop; more specifically, the first groove structure 11 is equivalent to a female stop. For ease of description below, it is referred to as the first groove structure 11. The first outer mating plate 111 refers to the plate located on the outer side, and the first inner mating plate 112 refers to the plate located on the inner side. As an example, in the first direction D1, the length of the first inner mating plate 112 is less than the length of the first outer mating plate 111. The front panel 10 and the first groove structure 11 can be integrally formed.

[0044] The rear housing 2 includes a protrusion 21 and a cover 22. The protrusion 21 is located at the edge of the cover 22 and protrudes from the cover 22 in a second direction D2, which is perpendicular to the first direction D1. The protrusion 21 has a second outer mating plate 211. When the second outer mating plate 211 is inserted into the first groove structure 11, the first outer mating plate 111 covers the second outer mating plate 211, and the first outer mating plate 111 protrudes from the second outer mating plate 211 in the direction toward the cover 22. The protrusion 21 has a second outer mating plate 211 extending along the first direction D1. The second outer mating plate 211 is engaged in the first groove structure 11. As an example, the second outer mating plate 211 is tightly fitted with the first groove structure 11 to facilitate the combination of the two. The first outer mating plate 111 is located outside the second outer mating plate 211, and the first outer mating plate 111 protrudes from the second outer mating plate 211 in the direction toward the cover 22. In this way, liquid is less likely to enter the interior of the relay protection device from the gap between the first outer mating plate 111 and the second outer mating plate 211.

[0045] Furthermore, the protrusion 21 protrudes from the cover 22 in the second direction D2, so that the liquid can flow more easily to the lower part, making it less likely for the liquid to enter the gap between the first outer mating plate 111 and the second outer mating plate 211.

[0046] Furthermore, the protrusion 21 and the cover 22 can be integrally molded, eliminating the need for additional steps to assemble them. As an example, the cover 22 has a accommodating space that can hold circuit boards or other circuit components. In the case of a cubic cover 22, it includes two side plates, a top plate, a bottom plate, and a back plate, all of which are fixedly connected.

[0047] As an example, the second outer mating plate 211 is long enough that even if liquid enters through the gap between the first outer mating plate 111 and the second outer mating plate 211, it is unlikely to flow into the bottom of the first groove structure 11. Of course, the overlap between the second outer mating plate 211 and the first inner mating plate 112 can also be long enough, for example, 1.5mm-2mm, to prevent rainwater from entering the bottom of the first groove structure 11.

[0048] As an example, the front cover 1 has at least one first fixing hole 12, and the protrusion 21 has at least one second fixing hole 23. The fastener 3 can pass through one first fixing hole 12 and one second fixing hole 23, with the second fixing hole 23 located inside the second inner mating plate 212. This fixing method facilitates assembly. The first fixing hole 12 and the second fixing hole 23 are, for example, threaded holes. Figure 1The diagram shows four first fixing holes 12 and second fixing holes 23. Screws can be inserted into the second fixing holes 23 and the first fixing holes 12 to further fix the front cover 1 and the rear housing 2.

[0049] According to this embodiment, by providing a front cover 1 with a first groove structure 11 and a rear shell 2 with a protrusion 21, when the second outer mating plate 211 is inserted into the first groove structure 11, the first outer mating plate 111 covers the second outer mating plate 211 and the first outer mating plate 111 protrudes from the second outer mating plate 211 in the direction toward the cover 22. In this way, liquid is not easily allowed to flow into the gap between the first outer mating plate 111 and the second outer outer mating plate 211. Waterproofing can be achieved through the structure of the relay protection device without the need for additional assembly steps.

[0050] As an example, the second outer mating plate 211 fits tightly with the first groove structure 11. This not only facilitates the installation of the front cover 1 and the rear housing 2, but also makes the gap between the first outer mating plate 111 and the second outer mating plate 211 smaller, preventing liquid from easily entering.

[0051] As an example, such as Figures 1 to 2 As shown, the cover 22 has arc-shaped grooves 221 along each side extending along the first direction D1. These arc-shaped grooves 221 can avoid the fixing member 3. From... Figure 2 As can be seen, the fixing member 3 is attached to the edge of the protrusion 21. While ensuring the space inside the cover 22, the fixing member 3 is avoided by setting the arc groove 221, so that the structure of the relay protection device is as compact as possible, thereby miniaturizing the relay protection device.

[0052] As an example, the protrusion 21 also includes a second inner mating plate 212 disposed opposite to the second outer mating plate 211, and the first inner mating plate 112 can be inserted between the second outer mating plate 211 and the second inner mating plate 212. The second outer mating plate 211 and the second inner mating plate 212 form a second groove structure, in which the first inner mating plate 112 is inserted. As an example, the first inner mating plate 112 fits tightly with the second groove structure. Thus, even if liquid flows into the first groove structure 11 and flows along the first inner mating plate 112, it will be difficult for liquid to enter the interior of the relay protection device due to the presence of the second inner mating plate 212. The presence of the second inner mating plate 212 is equivalent to adding an extra bend, so that there are multiple bends at the edge of the housing assembly of the relay protection device, making it difficult for liquid to enter and achieving a waterproof effect.

[0053] As an example, such as Figure 3 As shown, the first outer mating plate 111 is parallel to the second outer mating plate 211. This structure facilitates processing and assembly.

[0054] As another example, such as Figure 4 As shown, the thickness of the first outer mating plate 111 on the side facing the rear housing 2 is greater than the thickness on the other side. The inner wall of the first outer mating plate 111 is inclined, and the outer wall of the first outer mating plate 111 is parallel to the first direction D1. The outer wall of the second outer mating plate 211 matches the shape of the inner wall of the first outer mating plate 111. In the second direction D2, the height of the side of the second outer mating plate 211 facing the cover 22 is lower than the height of the side of the second outer mating plate 211 away from the cover 22. Since liquids tend to flow downwards, even if liquid enters through the gap between the first outer mating plate 111 and the second outer mating plate 211, the structure of the inner wall of the first outer mating plate 111 and the structure of the outer wall of the second outer mating plate 211 will prevent the liquid from easily entering the bottom of the first groove structure 11, thus achieving a waterproof effect.

[0055] As an example, such as Figure 1 As shown, the first groove structure 11 is arranged around the edge of the front panel 10, and the protrusion 21 is arranged around the edge of the cover 22. Thus, the housing assembly can achieve the aforementioned waterproof effect in the first direction D1, the second direction D2, and the third direction D3. In the opposite direction of the second direction D2, even if liquid enters between the first outer mating plate 111 and the second outer mating plate 211, it will flow to the bottom due to gravity and will not enter the interior of the relay protection device. Furthermore, liquid at the bottom will flow downwards rather than upwards into the interior of the relay protection device.

[0056] As an example, the side of the second outer mating plate 211 facing the first outer mating plate 111 and the cover 22 is an arc-shaped edge 2111. If liquid flows into the edge between the first outer mating plate 111 and the second outer mating plate 211, the arc-shaped edge 2111 prevents the liquid from easily entering, which is beneficial for waterproofing.

[0057] This utility model also includes a relay protection device, which includes the housing assembly for relay protection devices described in any of the preceding claims. The housing 22 contains several circuit boards, and various terminals can be provided on the back plate to achieve electrical connections.

[0058] like Figure 2 As shown, the housing assembly of the relay protection device also includes an outer panel 4, which is disposed outside the front panel 10. Through the cooperation between the outer panel 4 and the front panel 10, structures such as rotary buttons and screens can be installed. The specifics belong to the prior art and will not be described in detail here. The outer panel 4 can be made of transparent or translucent materials.

[0059] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A housing assembly for a relay protection device, comprising a front cover (1) and a rear housing (2) assembled in conjunction with said front cover (1), characterized in that, The front cover (1) includes a front panel (10) and a first groove structure (11). The first groove structure (11) is disposed on the edge of the front panel (10). The first groove structure (11) has a first outer mating plate (111) and a first inner mating plate (112) disposed opposite to each other. The first outer mating plate (111) and the first inner mating plate (112) are both perpendicular to the front panel (10). The first direction is the direction perpendicular to the front panel (10). The rear housing (2) includes a protrusion (21) and a cover (22). The protrusion (21) is located at the edge of the cover (22) and protrudes from the cover (22) in a second direction perpendicular to the first direction. The protrusion (21) has a second outer mating plate (211). When the second outer mating plate (211) is inserted into the first groove structure (11), the first outer mating plate (111) covers the second outer mating plate (211) and the first outer mating plate (111) protrudes from the second outer mating plate (211) in the direction toward the cover (22).

2. The housing assembly according to claim 1, characterized in that, The second outer mating plate (211) is tightly fitted with the first groove structure (11).

3. The housing assembly according to claim 1, characterized in that, The cover (22) is cubic in shape and has a accommodating space, and each side of the cover (22) extending along the first direction has an arc-shaped groove (221).

4. The housing assembly according to claim 1, characterized in that, The protrusion (21) also includes a second inner mating plate (212) disposed opposite to the second outer mating plate (211), and the first inner mating plate (112) can be inserted between the second outer mating plate (211) and the second inner mating plate (212).

5. The housing assembly according to claim 1, characterized in that, The first outer mating plate (111) is parallel to the second outer mating plate (211).

6. The housing assembly according to claim 1, characterized in that, The thickness of the first outer mating plate (111) facing the rear housing (2) is greater than the thickness of the other side. The inner wall of the first outer mating plate (111) is inclined. The outer wall of the first outer mating plate (111) is parallel to the first direction. The outer wall of the second outer mating plate (211) matches the shape of the inner wall of the first outer mating plate (111). In the second direction, the height of the second outer mating plate (211) facing the cover (22) is lower than the height of the second outer mating plate (211) away from the cover (22).

7. The housing assembly according to claim 1, characterized in that, The first groove structure (11) is arranged around the edge of the front panel (10), and the protrusion (21) is arranged around the edge of the cover (22); and / or The side of the second outer mating plate (211) facing the first outer mating plate (111) and the cover (22) is an arc-shaped side (2111).

8. The housing assembly according to claim 1, characterized in that, The front panel (10) is integrally formed with the first groove structure (11) and / or the protrusion (21) is integrally formed with the cover (22).

9. The housing assembly according to any one of claims 1-8, characterized in that, The front cover (1) has at least one first fixing hole (12), the protrusion (21) has at least one second fixing hole (23), and the fastener (3) can pass through one first fixing hole (12) and one second fixing hole (23), the second fixing hole (23) being located inside the second inner mating plate (212).

10. A relay protection device, characterized in that, Includes the housing assembly for a relay protection device according to any one of claims 1-9.

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