Waterproof test sealing device applied to electrical cabinet body
By designing a waterproof test sealing device for electrical cabinets, the blind plugs and sealing strips on the main board cooperate with the screw holes of the electrical cabinets, the problems of inefficient and high materials consumption are solved, and efficient and reliable sealing effect is achieved.
Patent Information
- Application Number
- CN202421619532.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-10
- Publication Date
- 2025-05-23
- Estimated Expiration
- 2034-07-10
AI Technical Summary
When traditional electrical outdoor cabinets are subject to waterproof sealing performance testing after plastic spraying or painting, the existing sealing test methods are inefficient, consume a lot of raw materials and are single-use, which cannot meet the needs of efficient production and testing.
A waterproof test sealing device is designed, including the motherboard, blind plug, sealing strip and rib strip. The blind plug on the motherboard is cooperated with the screw holes of the electrical cabinet through the blind plug on the motherboard, and sealing is used to simulate the actual installation conditions to achieve efficient sealing.
This device has good sealing and waterproofing effect, and is more reliable than tape sealing, has high simulation, energy saving and consumption reduction, and has a long service life. It can meet the needs of efficient production and testing of electrical cabinets.
Smart Images
Figure CN222895849U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of production and testing of outdoor electrical cabinets, and in particular to a waterproof testing sealing device applied to an electrical cabinet, which is particularly suitable for testing the waterproof sealing performance of an electromagnetic shielding outdoor cabinet after plastic spraying and painting. Background Art
[0002] For traditional electromagnetic shielding outdoor cabinets, after the cabinet body is sprayed with plastic or painted, it is transferred to the subsequent assembly line for subsequent assembly of electronic components inside the cabinet and air conditioners outside the cabinet. Before this assembly, the cabinet body’s openings for installing external equipment must be sealed, and the cabinet body must be tested for waterproof sealing performance to reach IP55 or even higher levels. Otherwise, it is difficult to avoid natural rain and snow disasters caused by poor sealing of the electrical cabinet body, resulting in damage or destruction of electronic components inside the cabinet, affecting product quality and causing significant losses in returns and repairs, especially for outdoor cabinets.
[0003] Prior to this, the sealing test used a sealing test solution that involved sticking tape, but this was inefficient, consumed too much raw materials, and was only for one-time use. In particular, it could not simulate actual installation conditions, which greatly affected production efficiency and could not meet the needs of efficient production and testing of electrical cabinets. Utility Model Content
[0004] The purpose of the utility model is to provide a waterproof test sealing device applied to an electrical cabinet to solve the problems encountered in the above-mentioned background technology.
[0005] To achieve the above purpose, the technical solution of the utility model is as follows:
[0006] A waterproof test sealing device used in an electrical cabinet comprises a main board, wherein the outer peripheral surface of the main board is provided with blind plugs according to the screw installation positions of the electrical cabinet, the front surface of the main board is provided with ribs, and the outer peripheral surface of the back surface of the main board is provided with an integrally connected sealing strip, and the sealing strip is located on the outside of the blind plugs.
[0007] In the above solution, a mounting hole is provided on the main board, the inner side of the mounting hole is provided with a chamfer, the blind plug is fixed in the mounting hole, and the blind hole is arranged outward. As a preferred solution, the blind plug includes a blind cylinder, the interior of the blind cylinder is provided with a thread, an avoidance hole is provided at the opening of the blind cylinder, and a limit platform is provided on the outer side of the avoidance hole, and the depth of the limit platform is the same as the thickness of the main board.
[0008] In the above scheme, the outer peripheral end surface of the main board is provided with an edge protruding outward, and the angle of the edge is provided with a rounded corner. The cross section of the sealing strip is a semicircular structure, and the sealing strip is made of elastic material. In order to improve the corrosion resistance and waterproof effect, a layer of waterproof coating is sprayed on the outer surface of the main board.
[0009] In the above solution, the rib strips are in a "day" - shaped structure on the front of the main board. Specifically, the rib strips include vertical ribs and horizontal ribs. There are two vertical ribs, located on both sides of the rib strip; there are three horizontal ribs, located at the upper, middle, and lower parts of the rib strip. As a preferred solution, both the vertical ribs and the horizontal ribs are in an inverted U - shaped structure. In addition, in order to conduct a comprehensive inspection during the waterproof experiment, first liquid - passing holes are evenly opened at the tops of the vertical ribs and the horizontal ribs, and second liquid - passing holes are evenly opened on the sides of the vertical ribs and the horizontal ribs.
[0010] Compared with the prior art, the beneficial effects of the present utility model are as follows: A blind plug is arranged at the installation position of the main - board installation surface, and it is matched with the installation hole of the electrical cabinet body. The sealing strip inside the main board is used to seal the installation surface, so that it has a good sealing and waterproof effect. Compared with the prior art that uses tape to seal the external equipment installation surface of the electrical cabinet body, it has the functions of reliable sealing, high simulation, energy conservation and consumption reduction, and durability. BRIEF DESCRIPTION OF THE DRAWINGS
[0011] The disclosure of the present utility model will be described with reference to the attached drawings. It should be understood that the drawings are only for illustrative purposes and are not intended to limit the protection scope of the present utility model. In the drawings, the same reference numerals are used to refer to the same components. Among them:
[0012] Figure 1 is a front - view structural schematic diagram of the present utility model;
[0013] Figure 2 is Figure 1 a left - view of
[0014] Figure 3 is a back - view structural schematic diagram of the present utility model;
[0015] Figure 4 is Figure 3 a sectional structural schematic diagram of A - A in
[0016] Figure 5 is Figure 3 a sectional structural schematic diagram of B - B in
[0017] Figure 6 is an upper - part structural schematic diagram of the horizontal rib in the present utility model;
[0018] Figure 7 is a side - view structural schematic diagram of the horizontal rib in the present utility model;
[0019] Figure 8 is Figure 3 a sectional view of C - C in
[0020] Fig. 9 is a schematic diagram of the present utility model during implementation;
[0021] Fig.10 It is a schematic diagram of the installation of the utility model in practice.
[0022] Numbers in the figure: 1-mainboard; 11-edge; 12-mounting hole; 13-chamfer; 14-rounded corner; 2-blind plug; 21-blind tube; 22-thread; 23-limiting platform; 24-avoidance hole; 3-sealing strip; 4-vertical rib; 5-horizontal rib; 51-first liquid hole; 52-second liquid hole; 6-electrical cabinet; 61-screw; 62-first gasket; 63-second gasket. DETAILED DESCRIPTION
[0023] In order to make the technical means, creative features, objectives and effects of the utility model easier to understand, the utility model is now further described in detail with reference to the accompanying drawings. These drawings are simplified schematic diagrams, which only illustrate the basic structure of the utility model in a schematic manner, and therefore only show the relevant components of the utility model.
[0024] According to the technical solution of the utility model, without changing the essential spirit of the utility model, a person skilled in the art can propose a variety of interchangeable structural modes and implementation modes. Therefore, the following specific implementation modes and drawings are only exemplary descriptions of the technical solution of the utility model, and should not be regarded as the entirety of the utility model or as a limitation or restriction to the technical solution of the utility model.
[0025] The technical solution of the utility model is further described in detail below in conjunction with the accompanying drawings and embodiments.
[0026] Embodiment 1, as Figures 1 to 3 As shown, a waterproof test sealing device applied to an electrical cabinet includes a mainboard 1. The mainboard 1 is made of a stainless steel plate. After laser cutting, the four sides are bent and the four corners are welded. Blind plugs 2 are provided on the outer circumference of the mainboard 1 according to the screw installation positions of the electrical cabinet 6. Ribs are welded on the front of the mainboard 1 to improve the flatness of the product. An integrally connected sealing strip 3 is provided on the outer circumference of the back of the mainboard 1, and the sealing strip 3 is located on the outside of the blind plug 2. The electrical cabinet 6 is an electromagnetic shielding outdoor cabinet, or other electrical equipment cabinets operating in the external environment.
[0027] When implementing, please refer to Fig. 9 and Fig.10, place the main board 1 at the external device installation port of the electrical cabinet 6, and then screw in the screws 61 according to the positions of the screw installation holes to fix it with the blind plug 2. When fixing, gaskets are installed at the front and back of the external device installation port, including a first gasket 62 and a second gasket 63. When the screws 61 are screwed, the sealing strip 3 will be compressed until it is compressed to the same thickness as the second gasket 63, so that it seals the external device installation port and obtains good sealing, thereby facilitating the waterproof detection test of the electrical cabinet 6.
[0028] Among them, the screw 61 is a hexagonal screw, and the two washers are flat washers, made of stainless steel, which are domestic standard general parts. During assembly, the blind hole end of the blind plug 2 is inserted into the mounting hole 12 from the chamfered hole end of the sealing surface of the main board 1, and a proper amount of sealant is applied to the rivet joint, and the blind plug 2 is assembled firmly with a special rivet tool.
[0029] For details, please refer to Figure 4 and Figure 5 The main board 1 is provided with a mounting hole 12, and a chamfer 13 is provided on the inner side of the mounting hole 12. The blind plug 2 is fixed in the mounting hole 12 by interference fit, and the blind hole is arranged outward, or fixed by riveting. As a preferred solution, the blind plug 2 includes a blind cylinder 21, and a thread 22 is provided inside the blind cylinder 21. An avoidance hole 24 is provided at the opening of the blind cylinder 21, and a limit platform 23 is provided on the outer side of the avoidance hole 24. The depth of the limit platform 23 is the same as the thickness of the main board 1. When the blind plug 2 is installed in the mounting hole 12, the limit platform 23 just inserts the blind plug 2 for positioning, and the thread 22 is used for threaded connection with the screw 61.
[0030] During implementation, an outwardly protruding edge 11 may be provided on the outer peripheral end surface of the main board 1, and the edge 11 is bent by a bending machine. A rounded corner 14 is provided at the included angle of the edge 11 to improve the appearance of the main board 1. The bending heights of the four sides are the same, and the four corners are smoothed after welding. A plurality of through holes are processed on the sealing surface as mounting holes 12, and a chamfer 13 is processed on the hole opening on one side of the sealing surface.
[0031] In addition, the cross section of the sealing strip 3 is a semicircular structure, and the sealing strip 3 is made of an elastic material, which is convenient for compaction. The sealing strip 3 can be made of rubber or foamed silicone, and can also be made of a polymer material isocyanate. In order to improve the corrosion resistance and waterproof effect, a waterproof coating is sprayed on the outer surface of the mainboard 1, and the surface can be sprayed with plastic. The surface of the mainboard 1 is sprayed with plastic, and the mounting hole 12 is blocked before spraying. Then, in the outer peripheral area of the sealing surface, a special foaming glue device is used to synthesize a foaming glue waterproof sealing strip 3 of a certain size from the polymer material isocyanate.
[0032] Example 2, please refer to Figures 6 to 8, A waterproof test sealing device applied to an electrical cabinet. In the solution of Embodiment 1, the rib strips are in a "day" - shaped structure on the front of the main board 1. The material of the rib strips is stainless steel plate. After laser cutting and blanking, they are bent twice to form the shape.
[0033] Specifically, the rib strips include vertical ribs 4 and horizontal ribs 5. There are two vertical ribs 4, located on both sides of the rib strips. There are three horizontal ribs 5, located at the upper, middle, and lower parts of the rib strips. The "day" - shaped structure is formed by the combination of the vertical ribs 4 and the horizontal ribs 5, and the adjacent connection parts can be fixed by welding.
[0034] As a preferred solution, both the vertical ribs 4 and the horizontal ribs 5 are in an inverted U - shaped structure, looking like being buckled on the outer wall of the main board 1. In addition, in order to conduct a comprehensive inspection during the waterproof experiment, first liquid holes 51 are evenly opened at the tops of the vertical ribs 4 and the horizontal ribs 5, and second liquid holes 52 are evenly opened on the sides of the vertical ribs 4 and the horizontal ribs 5 to allow the flow of liquid, so as to facilitate the detection of the waterproof performance of the areas covered by the rib strips.
[0035] Embodiment 3, A waterproof test sealing device applied to an electrical cabinet. Based on the solutions of Embodiment 1 and 2, during implementation, the blind plug 2 can be a blind - hole rivet nut, and the screw 61 can be an internal - hexagon screw that matches the blind - hole rivet nut. The hole position of the blind plug 2 used for riveting connection with the main board 1 corresponds to the hole position for subsequent installation of the air conditioner on the electronic shielding cabinet to be measured, that is, it corresponds to the external equipment installation hole position of the electrical cabinet 6. After the blind plug 2 is coated with an appropriate amount of sealant and riveted to the chamfered hole on the main board 1, it has reliable waterproof sealing performance. After spraying, the service life of this product is longer, and at the same time, a waterproof film is added, making the waterproof sealing performance stronger.
[0036] The waterproof performance of the sealing strip 3 is better than that of ordinary tapes, and there is no pollution at all, nor is there any need for additional dirt - cleaning work after testing. Install this waterproof test sealing device on the shielding cabinet to be measured for waterproof testing, highly simulating the actual installation state of air - conditioner installation. First, pass the first gasket 62 through the screw 61, that is, the internal - hexagon screw 3, then pass the threaded end of the screw 61 through the air - conditioner installation hole from the inside of the electronic shielding cabinet, and then pass the second gasket 63 through the screw 61. Complete the pre - assembly of 14 screws 61 in the same way, and then thread - connect the hole positions corresponding to the blind plugs 2 of this waterproof test sealing device with the pre - assembled screws 61 above. After the sealing strip 3 contacts the air - conditioner installation surface of the cabinet body, under the threaded pre - tightening action of the screw 61 and the blind plug 2, it gradually compresses and deforms, and is tightly pressed by the main board 1 between the plane in contact with the cabinet body, playing a sealing role. The second gasket 63 can limit the compression amount of the sealing strip 3 so as not to be damaged by compression, making the sealing of this waterproof test sealing device reliable.
[0037] After being installed in the electrical cabinet 6 to be tested for waterproofing, the entire electrical cabinet 6 is placed in a water spray test room to perform a water spray test with certain requirements. It can be installed at multiple locations of the same electrical cabinet 6 at the same time, and the size and installation hole position are adjusted accordingly according to specific circumstances. However, the sealing principle of the sealing strip 3 and the blind plug 2 is as described in Examples 1 and 2. Compared with the large-area sealing and subsequent removal of ordinary tapes, it can greatly save energy and reduce consumption, highly simulate sealing, and also greatly improve the service life. This waterproof test sealing device can be appropriately configured according to the production and test scale of the assembly line.
[0038] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprises" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. These undisclosed elements are all prior art that can be known to those skilled in the art.
[0039] The specific implementation methods described above further illustrate the purpose, technical solutions and beneficial effects of the utility model in detail. It should be understood that the above description is only the specific implementation method of the utility model and is not used to limit the protection scope of the utility model. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the utility model should be included in the protection scope of the utility model.
Claims
1. A waterproof test sealing device for an electrical cabinet, characterized in that: The invention comprises a main board (1), wherein the outer peripheral surface of the main board (1) is provided with blind plugs (2) respectively according to the screw installation positions of the electrical cabinet, the front surface of the main board (1) is provided with ribs, and the outer peripheral surface of the back surface of the main board (1) is provided with an integrally connected sealing strip (3), and the sealing strip (3) is located on the outside of the blind plug (2).
2. A waterproof test sealing device for an electrical cabinet according to claim 1, characterized in that: The main board (1) is provided with a mounting hole (12), the inner side of the mounting hole (12) is provided with a chamfer (13), and the blind plug (2) is fixed in the mounting hole (12), with the blind hole being arranged outward.
3. A waterproof test sealing device for an electrical cabinet according to claim 2, characterized in that: The blind plug (2) comprises a blind cylinder (21), the interior of the blind cylinder (21) is provided with a thread (22), an avoidance hole (24) is provided at the opening of the blind cylinder (21), a limit platform (23) is provided on the outer side of the avoidance hole (24), and the depth of the limit platform (23) is the same as the thickness of the main board (1).
4. The waterproof test sealing device for an electrical cabinet according to claim 1, characterized in that: The outer peripheral end surface of the main board (1) is provided with an edge (11) protruding outwards, and a rounded corner (14) is provided at the included angle of the edge (11).
5. The waterproof test sealing device for electrical cabinet according to claim 1, characterized in that: The cross section of the sealing strip (3) is a semicircular structure, and the sealing strip (3) is made of elastic material.
6. The waterproof test sealing device for electrical cabinet according to claim 1, characterized in that: The ribs are in a "sun"-shaped structure on the front side of the main board (1).
7. A waterproof test sealing device for an electrical cabinet according to claim 6, characterized in that: The ribs include vertical ribs (4) and transverse ribs (5). Two vertical ribs (4) are provided and are located on both sides of the ribs. Three transverse ribs (5) are provided and are located at the upper part, the middle part and the lower part of the ribs.
8. The waterproof test sealing device for electrical cabinet according to claim 7, characterized in that: The vertical ribs (4) and the transverse ribs (5) are both inverted U-shaped structures.
9. The waterproof test sealing device for electrical cabinet according to claim 8, characterized in that: The tops of the vertical ribs (4) and the transverse ribs (5) are uniformly provided with first liquid holes (51), and the sides of the vertical ribs (4) and the transverse ribs (5) are uniformly provided with second liquid holes (52).
10. The waterproof test sealing device for electrical cabinet according to claim 1, characterized in that: A layer of waterproof coating is sprayed on the outer surface of the main board (1).