Waterproof low-voltage cabinet closed air box

Abstract

The invention discloses a waterproof low-voltage cabinet closed air box which comprises a box body. The isolation part comprises a protection assembly arranged at the top end of the box body, a sealing cover assembly arranged at the top end of the box body and a waterproof assembly arranged at the rear end of the box body, the isolation part is used for isolating the external environment and ensuring that internal elements are not affected, and the sealed gas box body is of a sealed structure formed by laser welding through a novel gas protection welding system. The strength, the precision and the air tightness of the box are ensured; the closed gas tank body adopts a sealing structure formed by laser welding through a novel gas shielded welding system, so that the strength, the precision and the gas tightness of the tank body are ensured. The sealing mode of an aluminum plate and an O-shaped sealing ring is adopted at the opening, so that the effects of fastening, durability and high waterproofness are achieved. The problem that healthy operation of the power equipment is threatened when the power equipment is complex in operation environment, affected with damp, soaked in water, rusted and the like is effectively solved.

Description

Technical Field

[0001] The invention relates to the technical field of low-voltage complete switchgear, and in particular to a waterproof low-voltage cabinet sealed gas box. Background Art

[0002] Waterproof low-voltage cabinet is a kind of equipment used in low-voltage power distribution system. Its main features are waterproof, dustproof, and corrosion-resistant. It is suitable for indoor, outdoor, and humid environments. In harsh working environments, the gas box in the low-voltage distribution cabinet needs to be leak-proof and waterproof and sealed. It is only inflated for leak detection. It is not inflated during actual use. Water ingress leads to reduced insulation performance, damage to electrical equipment, and paralysis of the distribution station, causing line fault tripping.

[0003] At present, the protection level of power equipment in underground distribution stations is generally low. The protection level of conventional low-voltage switchgear is IP40, which does not meet the IP68 protection level and cannot meet the requirements of the gas box of the low-voltage switchgear operating under water immersion conditions. Summary of the invention

[0004] In view of the above-mentioned problems existing in the sealed gas box of the existing waterproof low-pressure cabinet, the present invention is proposed.

[0005] Therefore, the object of the present invention is to provide a waterproof low-pressure cabinet sealed gas box.

[0006] In order to solve the above technical problems, the present invention provides the following technical solutions: comprising a box body; an isolation component, which includes a protective component arranged at the top of the box body, a sealing component arranged at the top of the box body, and a waterproof component arranged at the rear end of the box body, for isolating the external environment and ensuring that the internal components will not be affected; the sealed gas box body is formed by laser welding through a new gas shielded welding system, which ensures the strength, precision and airtightness of the box body.

[0007] As a preferred solution of the waterproof low-voltage cabinet sealed gas box described in the present invention, the protective component includes a waterproof door arranged at the front end of the box body, a first installation groove arranged on the installation side of the waterproof door, a first sealing ring arranged on the outside of the first installation groove, and a bus frame arranged on both sides of the box body; wherein the first installation groove cooperates with the first sealing ring.

[0008] As a preferred solution of the waterproof low-voltage cabinet sealed air box described in the present invention, second installation slots are provided on both sides of the busbar frame, and second sealing rings are provided inside the second installation slots; wherein the busbar frame is made of aluminum plate and is installed and fixed with bolts.

[0009] As a preferred solution of the waterproof low-pressure cabinet sealed gas box described in the present invention, the sealing cover assembly includes a top sealing plate arranged on the top of the box body, a third installation groove arranged on the installation side of the top sealing plate, a third sealing ring arranged on the inner side of the third installation groove, and an explosion-proof membrane arranged on one side of the top sealing plate.

[0010] As a preferred solution of the waterproof low-pressure cabinet sealed gas box of the present invention, a fourth installation groove is provided on one side of the explosion-proof membrane, a fourth sealing ring is provided on the inner side of the fourth installation groove, and the explosion-proof membrane is installed and fixed on the box body by welding studs.

[0011] As a preferred solution of the waterproof low-voltage cabinet sealed air box described in the present invention, the waterproof component includes a rear sealing plate arranged at the rear end of the box body, a fifth installation groove arranged on the installation side of the rear sealing plate, a fifth sealing ring arranged inside the fifth installation groove, and a waterproof socket arranged on one side of the rear sealing plate.

[0012] As a preferred solution of the waterproof low-voltage cabinet sealed air box described in the present invention, the four corners of the waterproof socket are provided with mounting flanges, the rear end of the box body is provided with a threaded hole, the mounting flange is fastened to the outside of the threaded hole by screws, the inside of the mounting flange is provided with a sixth mounting slot, and the inside of the sixth mounting slot is provided with a sixth sealing ring.

[0013] As a preferred solution of the waterproof low-voltage cabinet sealed gas box of the present invention, the waterproof door, busbar frame, top sealing plate, and rear sealing plate are all made of aluminum plates.

[0014] As a preferred solution of the waterproof low-pressure cabinet sealed air box of the present invention, the first sealing ring, the second sealing ring, the third sealing ring, the fourth sealing ring, the fifth sealing ring, and the sixth sealing ring are all type sealing rings.

[0015] As a preferred solution of the waterproof low-voltage cabinet sealed gas box of the present invention, the protection level of the box can reach.

[0016] Beneficial effects of the present invention: The sealed gas box body is welded by a new gas shielded welding system and laser to form a sealed structure, which ensures the strength, precision and air tightness of the box. The openings are sealed in the form of aluminum plates plus O-rings to achieve the effects of tightness, durability and high waterproofness. It effectively solves the problem that the operating environment of power equipment is complex, and moisture, water immersion and rust always threaten the healthy operation of power equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for describing the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work. Among them:

[0018] Figure 1 The overall device of the present invention is shown in FIG. Figure 1 .

[0019] Figure 2 The overall device of the present invention is shown in FIG. Figure 2 .

[0020] Figure 3 It is a schematic diagram of a waterproof door of the present invention.

[0021] Figure 4 It is a schematic diagram of the busbar frame of the present invention.

[0022] Figure 5 It is a schematic diagram of the top sealing plate of the present invention.

[0023] Figure 6 It is a schematic diagram of the explosion-proof membrane of the present invention.

[0024] Figure 7 It is a schematic diagram of the rear sealing plate of the present invention.

[0025] Figure 8 It is a schematic diagram of the waterproof socket of the present invention. DETAILED DESCRIPTION

[0026] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are described in detail below in conjunction with the accompanying drawings.

[0027] In the following description, many specific details are set forth to facilitate a full understanding of the present invention, but the present invention may also be implemented in other ways different from those described herein, and those skilled in the art may make similar generalizations without violating the connotation of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0028] Secondly, the term "one embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The term "in one embodiment" that appears in different places in this specification does not necessarily refer to the same embodiment, nor does it refer to a separate or selective embodiment that is mutually exclusive with other embodiments.

[0029] Secondly, the present invention is described in detail with reference to the schematic diagram. When describing the embodiments of the present invention in detail, for the sake of convenience, the cross-sectional diagrams showing the device structure will not be partially enlarged according to the general scale, and the schematic diagrams are only examples, which should not limit the scope of protection of the present invention. In addition, in actual production, the three-dimensional dimensions of length, width and depth should be included.

[0030] Example 1

[0031] Reference Figure 1-6 , provides a waterproof low-voltage cabinet sealed gas box, including a box body 100; an isolation component 200, which includes a protection component 201 arranged at the top of the box body 100, a cover component 202 arranged at the top of the box body 100, and a waterproof component 203 arranged at the rear end of the box body 100, which is used to isolate the external environment and ensure that the internal components will not be affected. The sealed gas box body is a sealed structure formed by laser welding through a new gas shielded welding system to ensure the strength, precision and airtightness of the box body 100

[0032] The box body 100 is made of a stainless steel plate laser-welded sealed structure. The box body 100 isolates the internal components through the isolation component 200, so that it can completely isolate smoke, dust, moisture, and floods.

[0033] Specifically, the protection assembly 201 includes a waterproof door 201a provided at the front end of the box 100, a first installation notch 201b provided at the installation side of the waterproof door 201a, a first sealing ring 201c provided outside the first installation notch 201b, and a busbar frame 201d provided at both sides of the box 100; wherein the first installation notch 201b cooperates with the first sealing ring 201c;

[0034] First, the main frame of the box 100 is welded by laser welding to ensure the strength, precision and airtightness of the box 100. The first sealing ring 201c is installed in the first installation notch 201b of the waterproof door 201a, and then the waterproof door 201a is installed on the welding studs of the front side plate, and the waterproof door 201a is fixed to the front side plate of the box 100 by tightening nuts and washers to achieve the sealing and waterproof effect of the waterproof door 201a and the front plate of the box 100.

[0035] Furthermore, second mounting slots 201e and second sealing rings 201f are provided on both sides of the busbar frame 201d; wherein, the busbar frame 201d is made of an aluminum plate and is installed and fixed by bolts, the second sealing ring 201f is first installed in the second mounting slot 201e of the busbar frame 201d, and then the busbar frame 201d is installed in the opening of the side panel of the box body 100, and the busbar frame 201d is installed and fixed to the side panel of the box body 100 by tightening the bolts to ensure the sealing of the busbar frame 201d and the side panels on both sides.

[0036] Furthermore, the cover assembly 202 includes a top sealing plate 202a arranged at the top of the box body 100, a third installation groove 202b arranged on the installation side of the top sealing plate 202a, a third sealing ring 202c arranged on the inner side of the third installation groove 202b, and an explosion-proof membrane 202d arranged on one side of the top sealing plate 202a. The third sealing ring 202c is placed in the third installation groove 202b of the top sealing plate 202a, and the top sealing plate 202a is then installed on the welding studs on the top of the box body 100, and finally the upper sealing plate is fixed to the top of the box body 100 by nuts and washers.

[0037] Furthermore, a fourth installation groove 202e is provided on one side of the explosion-proof membrane 202d, and a fourth sealing ring 202f is provided on the inner side of the fourth installation groove 202e. The explosion-proof membrane 202d is installed and fixed on the box body 100 by welding studs. The fourth sealing ring 202f is installed in the mouth of the fourth installation groove 202e of the explosion-proof membrane 202d, and then the explosion-proof membrane 202d is installed on the welding studs on the top of the box body 100. The explosion-proof membrane 202d is installed and fixed on the top of the box body 100 by nuts to prevent external water from flowing from the top of the cabinet into the interior of the box body 100 and causing damage to internal components.

[0038] Example 2

[0039] Reference Figure 1-8 This embodiment is different from the first embodiment in that the waterproof component 203 includes a rear sealing plate 203a arranged at the rear end of the box body 100, a fifth installation groove 203b arranged on the installation side of the rear sealing plate 203a, a fifth sealing ring 203c arranged inside the fifth installation groove 203b, and a waterproof socket 203d arranged on one side of the rear sealing plate 203a. The fifth sealing ring 203c is installed in the fifth installation groove 203b of the rear sealing plate 203a, and the rear sealing plate 203a is then installed on the welding studs of the cable partition, and finally the upper sealing plate is fixed to the cable partition at the rear of the box body 100 by nuts and washers.

[0040] Specifically, mounting flanges 203e are provided at the four corners of the waterproof socket 203d, and a threaded hole 203f is provided at the rear end of the box body 100. The mounting flange 203e is fastened to the outer side of the threaded hole 203f by screws. A sixth mounting slot 203g is provided inside the mounting flange 203e, and a sixth sealing ring 203h is provided inside the sixth mounting slot 203g. The sixth sealing ring 203h is installed in the sixth mounting slot 203g of the mounting flange 203e of the waterproof socket 203d to achieve sealing and waterproofing effects between the socket assembly and the cable partition, and the flange is mounted on the cable partition by tightening the screws.

[0041] The rest of the structure is the same as that of Example 1.

[0042] Example 3

[0043] Reference Figure 1-8 This embodiment is different from the above embodiments in that the waterproof door 201a, the busbar frame 201d, the top sealing plate 202a, and the rear sealing plate 203a are all made of aluminum plates, which are relatively light and easy to install.

[0044] Specifically, the sealing ring adopts an O-ring. Compared with other sealing rings, the main advantages of the O-ring include: a wide range of applications, simple manufacturing and installation requirements, good quality stability, low cost, and easy use.

[0045] O-rings are widely used, covering almost all mechanical industries, from static sealing to dynamic sealing. Due to its long history of use, its quality stability is guaranteed to a certain extent, especially under high requirements for waterproof and dustproof levels, its reliability far exceeds other sealing methods.

[0046] The manufacturing and installation requirements of O-rings are relatively simple. The existing industry manufacturing technology is fully capable of producing the seals, and the cost is not high. The quality is stable, unlike some sealing structures that require expensive instruments and complex processes.

[0047] O-rings have good quality stability and can prevent the product from "running, bubbling, dripping, and leaking" due to the failure of gas and liquid sealing in the system. Under the stringent experimental requirements, the design of the sealing ring is becoming more and more rigorous to ensure its reliability.

[0048] Furthermore, the protection level of the box body 100 can reach IP68.

[0049]

[0050]

[0051] The rest of the structure is the same as that of Example 2.

[0052] Importantly, it should be noted that the construction and arrangement of the present application shown in a plurality of different exemplary embodiments are only exemplary. Although only a few embodiments are described in detail in this disclosure, it should be readily understood by those who refer to this disclosure that many modifications are possible (e.g., the size, scale, structure, shape and proportion of various elements, as well as parameter values ​​(e.g., temperature, pressure, etc.), mounting arrangements, use of materials, color, directional changes, etc.) without substantially departing from the novel teachings and advantages of the subject matter described in the application. For example, the element shown as integrally formed can be composed of multiple parts or elements, the position of the element can be inverted or otherwise changed, and the nature or number or position of the discrete element can be changed or changed. Therefore, all such modifications are intended to be included in the scope of the present invention. The order or sequence of any process or method steps can be changed or reordered according to alternative embodiments. In the claims, any "device plus function" clause is intended to cover the structure described herein that performs the function, and is not only structurally equivalent but also equivalent structure. Without departing from the scope of the present invention, other replacements, modifications, changes and omissions can be made in the design, operating conditions and arrangement of the exemplary embodiments. Therefore, the invention is not limited to a specific embodiment, but extends to several modifications still falling within the scope of the appended claims.

[0053] Additionally, in order to provide a concise description of exemplary embodiments, all features of an actual embodiment (ie, those features that are not relevant to the best mode presently contemplated for carrying out the invention or those that are not relevant to implementing the invention) may not be described.

[0054] It will be appreciated that in the development of any actual implementation, as in any engineering or design project, numerous implementation-specific decisions may be made. Such a development effort may be complex and time-consuming, but will be a routine task of design, fabrication, and production for those of ordinary skill having the benefit of this disclosure without undue experimentation.

[0055] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present invention may be modified or replaced by equivalents without departing from the spirit and scope of the technical solutions of the present invention, which should all be included in the scope of the claims of the present invention.

Claims

1. A waterproof low-pressure cabinet sealed gas box, characterized in that: include, Box (100); The isolation component (200) comprises a protection component (201) arranged at the top of the box body (100), a cover component (202) arranged at the top of the box body (100), and a waterproof component (203) arranged at the rear end of the box body (100).

2. The waterproof low-pressure cabinet sealed gas box according to claim 1, characterized in that: The protection assembly (201) comprises a waterproof door (201a) provided at the front end of the box body (100), a first installation notch (201b) provided at the installation side of the waterproof door (201a), a first sealing ring (201c) provided outside the first installation notch (201b), and busbar frames (201d) provided at both sides of the box body (100); Wherein, the first installation notch (201b) matches with the first sealing ring (201c).

3. The waterproof low-pressure cabinet sealed gas box according to claim 2, characterized in that: Second installation slots (201e) are provided on both sides of the busbar frame (201d), and second sealing rings (201f) are provided inside the second installation slots (201e); The busbar frame (201d) is made of an aluminum plate and is installed and fixed with bolts.

4. The waterproof low-pressure cabinet sealed gas box according to claim 3, characterized in that: The sealing cover assembly (202) comprises a top sealing plate (202a) arranged at the top end of the box body (100), a third installation slot (202b) arranged at the installation side of the top sealing plate (202a), a third sealing ring (202c) arranged on the inner side of the third installation slot (202b), and an explosion-proof membrane (202d) arranged at one side of the top sealing plate (202a).

5. The waterproof low-pressure cabinet sealed gas box according to claim 4, characterized in that: A fourth installation groove (202e) is provided on one side of the explosion-proof membrane (202d), a fourth sealing ring (202f) is provided inside the fourth installation groove (202e), and the explosion-proof membrane (202d) is fixed to the box body (100) by means of welding studs.

6. The waterproof low-pressure cabinet sealed gas box according to claim 5, characterized in that: The waterproof component (203) comprises a rear sealing plate (203a) arranged at the rear end of the box body (100), a fifth installation slot (203b) arranged at the installation side of the rear sealing plate (203a), a fifth sealing ring (203c) arranged inside the fifth installation slot (203b), and a waterproof socket (203d) arranged at one side of the rear sealing plate (203a).

7. The waterproof low-pressure cabinet sealed gas box according to claim 6, characterized in that: The four corners of the waterproof socket (203d) are provided with mounting flanges (203e), the rear end of the box body (100) is provided with a threaded hole (203f), the mounting flange (203e) is fastened to the outside of the threaded hole (203f) by screws, a sixth mounting slot (203g) is provided inside the mounting flange (203e), and a sixth sealing ring (203h) is provided inside the sixth mounting slot (203g).

8. The waterproof low-pressure cabinet sealed gas box according to claim 7, characterized in that: The waterproof door (201a), the busbar frame (201d), the top sealing plate (202a), and the rear sealing plate (203a) are all made of aluminum plates.

9. The waterproof low-pressure cabinet sealed gas box according to claim 8, characterized in that: The first sealing ring (201c), the second sealing ring (201f), the third sealing ring (202c), the fourth sealing ring (202f), the fifth sealing ring (203c), and the sixth sealing ring (203h) are all O-type sealing rings.

10. The waterproof low-pressure cabinet sealed gas box according to claim 9, characterized in that: The protection level of the box (100) can reach IP68.

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