Waterproof switch cabinet structure
By using a fitting design between the port housing and the heat sink housing, along with the use of rubber rings, rubber strips, and transparent films, the problem of low waterproof rating of the switch housing was solved, achieving an IP67 waterproof rating.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- HANGZHOU AOBO RUIGUANG COMM CO LTD
- Filing Date
- 2025-05-14
- Publication Date
- 2026-06-09
AI Technical Summary
Existing switch enclosures are difficult to achieve an IP67 waterproof rating, especially due to gaps in reserved openings such as RJ45 ports and LED indicator lights, which reduces waterproof performance.
The design incorporates a fitting port housing and a heat sink housing, combined with a raised and recessed structure. Rubber rings and transparent films are used at the mounting holes, along with rubber strips to enhance sealing. Additionally, rubber rings are placed on the ports, and films are applied to the housing surface to improve waterproofing.
The switch enclosure achieves IP67 waterproof rating, effectively preventing water from corroding internal components, and has passed the rigorous IP67 test.
Smart Images

Figure CN224343224U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of switch housing technology, specifically to a waterproof switch housing structure. Background Technology
[0002] In the field of industrial Ethernet switches, waterproof testing is required, which places high demands on the product's enclosure design. However, most switches, due to their need for heat dissipation, find it difficult to achieve a relatively high waterproof rating. Some tests require meeting the stringent IP67 standard, which involves submerging the device in 1 meter of water for 30 minutes.
[0003] Traditional casing designs struggle to meet these stringent requirements, with most products exhibiting gaps that only achieve IP40 rating.
[0004] Since switch products generally need to reserve openings for installing RJ45 ports, M12 ports, and LED indicators, these reserved holes will still have some gaps after the devices are installed, which will lead to a decrease in waterproof performance. Utility Model Content
[0005] Purpose of the utility model: The technical problem to be solved by this utility model is to provide a waterproof switch housing structure, which solves the problem of low waterproof rating of existing switch housings.
[0006] Technical solution
[0007] To solve the above problems, the technical solution provided by this utility model is as follows:
[0008] A waterproof switch housing structure includes a housing, which is composed of a port housing and a heat dissipation housing. The port housing and the heat dissipation housing fit together. One of the port housing and the heat dissipation housing has a mating groove, and the other has a mating protrusion fixedly provided. The mating protrusion is inserted into the mating groove. The bottom of the heat dissipation housing is provided with a plurality of heat dissipation fins.
[0009] Furthermore, several of the heat dissipation fins are arranged sequentially at the bottom of the heat dissipation shell, with gaps between adjacent heat dissipation fins.
[0010] Furthermore, the extension lengths of adjacent heat dissipation fins alternate.
[0011] Furthermore, the port housing is provided with a plurality of ports, and the top surface of the port housing is provided with mounting holes, through which the ports pass into the port housing.
[0012] Furthermore, the port consists of a communication end and a fixed end, and a flange is provided between the communication end and the fixed end.
[0013] Furthermore, the outer surface of the fixed end is provided with threads, and a nut is screwed onto the fixed end.
[0014] Furthermore, a rubber ring is fitted onto the fixed end between the flange and the nut.
[0015] Furthermore, a rubber strip is provided inside the mating groove.
[0016] Furthermore, the port housing is provided with an LED opening, and an LED mounting post is provided inside the port housing corresponding to the LED opening. An LED lamp bead is installed in the LED mounting post, the LED lamp bead extends into the LED opening, and the top surface of the LED lamp bead is flush with the top surface of the port housing.
[0017] Furthermore, a film is affixed to the top surface of the port shell, the film is coated with waterproof adhesive, and the film is transparent.
[0018] Beneficial effects
[0019] Compared with the prior art, the technical solution provided by this utility model has the following advantages:
[0020] The technical solution provided by this utility model adds mutually fitting protrusions and grooves to the upper and lower parts of the casing, and adds rubber strips to enhance the waterproof effect. Additionally, it incorporates rubber rings at the mounting ports and a film applied to the surface of the casing.
[0021] This effectively achieves an IP67 protection rating, protecting internal components from water corrosion when the product is immersed in water. It has also successfully passed third-party IP67 testing. The design is simple, consisting of only two parts, top and bottom. Attached Figure Description
[0022] Figure 1 This is a schematic diagram of the structure of Embodiment 1 of the present utility model;
[0023] Figure 2 This is a cross-sectional view of Embodiment 1 of the present utility model;
[0024] Figure 3 This is a schematic diagram of the port shell of Embodiment 1 of this utility model;
[0025] Figure 4 This is a schematic diagram of the heat dissipation shell of Embodiment 1 of this utility model. Detailed Implementation
[0026] To make the technical solution of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and specific embodiments.
[0027] Example 1
[0028] Combined with appendix Figure 1-4 A waterproof switch housing structure provides high waterproof performance for industrial Ethernet switches, enabling them to meet the IP67 waterproof standard. The housing includes a housing 1, which is fixedly assembled from two parts: an upper part called a port housing 11 and a lower part called a heat dissipation housing 12. The housing 1 is formed by fixing the port housing 11 and the heat dissipation housing 12 together.
[0029] The port housing 11 is equipped with several ports 111. The ports 111 extend through the top surface of the port housing 11 into the port housing 11 and are fixed on the port housing 11. The heat sink 12 is provided with heat sink fins 122 on the bottom surface. The port housing 11 and the heat sink 12 are fitted together and fixed with bolts.
[0030] The port housing 11 and the heat sink 12 are hollow shells, and the side of the port housing 11 and the heat sink 12 facing each other is an open structure. By combining the open surfaces of the port housing 11 and the heat sink 12 and fixing the port housing 11 and the heat sink 12 together as an integral structure, the port housing 11 and the heat sink 12 are combined into the housing 1.
[0031] Several ports 111 on the port housing 11 are distinguished by function, and ports 111 with different functions are installed at different positions on the top surface of the port housing 11. The ports 111 on the port housing 11 are fixedly installed on the port housing 11 by nuts 1114. The port housing 11 has reserved mounting holes for installing the ports 111. The ports 111 pass through the reserved mounting holes, pass through the top surface of the port housing 11, and extend into the interior of the port housing 11.
[0032] Port 111 consists of a communication end 1111 located on the outside of port housing 11 and a fixed end 1112 located on the inside of port housing 11. The outer surface of the fixed end 1112 of port 111 is provided with threads. A flange 1113 is provided between the communication end 1111 and the fixed end 1112 of port 111. The flange 1113 of port 111 is larger than the mounting hole on the top surface of port housing 11. Port 111 is preferably an M12 port.
[0033] Port 111 passes through the mounting hole reserved in port housing 11 for installing port 111. The flange 1113 of port 111 is supported on the surface of port 111. The outer surface of the fixing end 1112 is threaded. The nut 1114 is tightened on the fixing end 1112 of port 111 to fix port 111 to port housing 11.
[0034] During installation, a rubber ring 1115 is fitted onto the fixed end 1112 of port 111. The rubber ring 1115 is installed between the top surface of port housing 111 and nut 1114. When nut 1114 is tightened, it causes the rubber ring 1115 to abut against the top surface of port housing 111. Since the fixed end 1112 of port 111 is threaded, the rubber ring 1115 can maintain full contact with port housing 111 after nut 1114 is tightened, thus playing a waterproof role. Liquid cannot flow into the interior of port housing 11 through the mounting hole of port 111.
[0035] The port housing 11 is also provided with LED openings 112, which are corresponding to the ports 111. Each port 111 is equipped with a different number of LED openings 112 according to its function. The LED openings 112 are used to expose the LED beads, which indicate the working status of the terminals 111. The LED openings 112 are located inside the port housing 11 and are provided with corresponding LED mounting posts 113. The LED mounting posts 113 are used to fix and install the LED beads. The LED beads extend from the LED mounting posts 113 inside the port housing 11 into the LED openings 112. The LED beads do not protrude from the LED openings 112. Preferably, the LED beads are located inside the LED openings 112 and the top of the LED beads is flush with the outer side of the top surface of the port housing 11. Preferably, the port housing 11 is provided with 24 M12 connection ports and 42 LED indicator lights.
[0036] A film 13 is covered on the top surface of the port housing 11. The film 13 is coated with waterproof adhesive and covers the top surface of the port housing 11 with the waterproof adhesive. The film 13 is transparent and has holes corresponding to the mounting holes to prevent interference with the port 111. The film 13 can further enhance the waterproof properties of the port housing 11, thereby preventing liquid from entering the interior of the port housing 11 through the LED opening 112. The top of the LED bead is flush with the outer side of the top surface of the port housing 11 to avoid hindering the installation of the film 13. Since the LED bead is flush with the outer side of the top surface of the port housing 11, the transparent film 13 can directly cover the top surface of the port housing 11, thereby preventing water leakage from the LED opening 112.
[0037] The bottom surface of the port housing 11 is provided with a mating groove 115 along the bottom surface of the port housing 11, and the top surface of the heat sink 12 is fixedly provided with a mating protrusion 125 along the top surface of the heat sink 12. The mating protrusion 125 is correspondingly provided with the mating groove 115. The mating protrusion 125 is inserted into the mating groove 115, so that the port housing 11 and the heat sink 12 fit together. A rubber strip is added in the mating groove 115. When the mating protrusion 125 and the mating groove 115 fit together, the rubber strip can further increase the sealing between the mating protrusion 125 and the mating groove 115, thereby increasing the waterproof effect and preventing liquid from seeping into the interior of the housing 1 through the connection gap between the port housing 11 and the heat sink 12.
[0038] The installation positions of the mating protrusion 125 and the mating groove 115 can be interchanged, that is, the mating protrusion 125 can be installed on the port housing 11, and the mating groove 115 is provided on the heat sink housing 12.
[0039] The bottom of the heat sink 12 is provided with heat dissipation fins 122. Multiple heat dissipation fins 122 are arranged side by side at the bottom of the heat sink 12. There are gaps between adjacent heat dissipation fins 122 to facilitate heat flow. The adjacent heat dissipation fins 122 extend from the bottom surface of the heat sink 12 to different lengths. The adjacent heat dissipation fins 122 are arranged in an alternating pattern of long and short lengths. By extending heat dissipation fins 122 to different lengths, the heat at the ends of the heat dissipation fins 122 is distributed to different spatial positions to maintain high heat dissipation efficiency and prevent heat accumulation.
[0040] One of the port housing 11 and the heat sink housing 12 is provided with a threaded hole, and the other is provided with a connecting through hole. By passing a bolt through the connecting through hole and tightening it into the threaded hole, the port housing 11 and the heat sink housing 12 are fixed into an integral structure.
[0041] PCBA is installed in the internal space of housing 1, which consists of port housing 11 and heat sink housing 12. PCBA is electrically connected to several ports 111 and LED beads. Heat sink fins 122 directly dissipate heat from PCBA.
[0042] The threaded holes and connecting holes on the port housing 11 and the heat sink housing 12 are located on the outside of the mating protrusion 125 and the mating groove 115 to prevent the threaded holes and connecting holes from damaging the waterproof sealing of the mating protrusion 125 and the mating groove 115. The positions of the threaded holes and connecting holes on the outside of the mating protrusion 125 and the mating groove 115 on the port housing 11 and the heat sink housing 12 are recessed to avoid the threaded hole and connecting hole structure.
[0043] The housing 1 has connecting ears 14 on both sides of the heat sink 12. The housing 1 is fixed in the working position by the connecting ears 14. The connecting ears are provided with fixing holes for fixing the housing 1. The downward extension length of the connecting ears 14 must be greater than the extension length of the heat sink 122.
[0044] The embodiments described above are merely illustrative of several implementations of this utility model, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of this utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.
Claims
1. A waterproofing structure of a switchgear cabinet, characterized by comprising: The device includes a housing, which is composed of a port housing and a heat sink housing. The port housing and the heat sink housing fit together. One of the port housing and the heat sink housing has a mating groove, and the other has a mating protrusion fixedly provided. The mating protrusion is inserted into the mating groove. The bottom of the heat sink housing is provided with a number of heat dissipation fins.
2. The waterproof switch cabinet structure according to claim 1, characterized in that, Several heat dissipation fins are arranged sequentially at the bottom of the heat dissipation shell, and gaps are provided between adjacent heat dissipation fins.
3. The waterproof switch cabinet structure according to claim 2, characterized in that, The adjacent heat dissipation fins have alternating lengths.
4. The waterproof switch cabinet structure according to claim 1, characterized in that, The port housing has a plurality of ports, and the top surface of the port housing has mounting holes, through which the ports pass into the port housing.
5. The waterproofing switch cabinet structure according to claim 4, characterized in that, The port consists of a communication end and a fixed end, and a flange is provided between the communication end and the fixed end.
6. The waterproofing switch cabinet structure according to claim 5, wherein, The outer surface of the fixed end is threaded, and a nut is screwed onto the fixed end.
7. The waterproofing switch cabinet structure according to claim 6, characterized in that, A rubber ring is fitted on the fixed end between the flange and the nut.
8. The waterproofing switch cabinet structure according to claim 1, wherein, A rubber strip is provided inside the mating groove.
9. The waterproofing switch cabinet structure according to claim 1, wherein, The port housing is provided with an LED opening, and an LED mounting post is provided inside the port housing corresponding to the LED opening. An LED lamp bead is installed in the LED mounting post, and the LED lamp bead extends into the LED opening, with the top surface of the LED lamp bead flush with the top surface of the port housing.
10. The waterproofing switch cabinet structure according to claim 9, wherein, A film is attached to the top surface of the port shell, and the film is coated with waterproof adhesive. The film is transparent.