Waterproof bus mounting structure

Abstract

The invention discloses a waterproof bus installation structure in the bus waterproof field, and the structure comprises a cabinet assembly, the cabinet assembly comprises a cabinet side plate, the cabinet side plate is provided with a first installation groove, and the first installation groove is internally provided with a first rectangular boss and a second rectangular boss; the fixing assembly comprises a bus frame embedded in the first mounting groove, a first rectangular groove and a second rectangular groove are formed in the two sides of the bus frame, a mounting table is arranged in the middle of the bus frame, a branching clamp is fixed in the mounting table, and a bus copper bar is connected to the branching clamp. The beneficial effects of the invention are that gaps generated after the cabinet body assembly and the fixing assembly are connected form a labyrinth structure, the labyrinth structure with the continuously changing gaps can block infiltrated water, and meanwhile, in order to prevent a large amount of water vapor from being gathered and overflowing from the labyrinth structure, the gathered water can be completely discharged out of the bus frame through the drainage pipeline, so that the service life of the bus frame is prolonged. And the waterproof performance is further improved.

Description

Technical Field

[0001] The invention relates to the field of busbar waterproofing, and in particular to a waterproof busbar installation structure. Background Art

[0002] The low-voltage cabinet is a key device for distributing electric energy in the power system. The busbar inside it is an important component that connects various electrical components and transmits electric energy. Adjacent low-voltage cabinets must first be connected through busbar copper bars, and then connected to busbar copper bars inside the low-voltage cabinet to form an electric power transmission channel. The busbar copper bar is generally fixed to the low-voltage cabinet through a busbar frame.

[0003] However, for low-voltage cabinets used outdoors or in humid environments, since part of the busbar copper bar is located outside the low-voltage cabinet, when water adheres to the busbar copper bar, it will cause an electrical short circuit, resulting in equipment damage or even a fire. Humid air will also corrode the busbar, reducing its conductivity and mechanical strength, and increasing maintenance costs.

[0004] The busbar frames of existing low-voltage cabinets are mostly composed of two upper and lower busbar frames assembled by screws, which cannot meet the requirements of waterproof function. Some waterproof measures currently on the market, such as sealants and waterproof coatings, may fail in long-term operation and cannot provide lasting protection. At the same time, when other problems occur in the busbar and it needs to be replaced, the removal of the busbar frame will destroy the waterproof coating, and the waterproof coating must be reapplied, which makes maintenance cumbersome and increases the difficulty of operation and time cost. Summary of the invention

[0005] The purpose of this section is to summarize some aspects of the embodiments of the present invention and briefly introduce some preferred embodiments. Some simplifications or omissions may be made in this section and the abstract of the specification and the title of the invention of this application to avoid blurring the purpose of this section, the abstract of the specification and the title of the invention, and such simplifications or omissions cannot be used to limit the scope of the present invention.

[0006] In view of the problem in the prior art that humid air or water corrodes the busbar and causes an electrical short circuit, the present invention is proposed.

[0007] Therefore, the technical problem to be solved by the present invention is how to prevent the busbar copper bar from contacting with water.

[0008] In order to solve the above technical problems, the present invention provides the following technical solutions: a waterproof busbar installation structure, including a cabinet body assembly, including a cabinet side panel, the cabinet side panel is provided with a first installation groove, the first installation groove is provided with a first rectangular boss and a second rectangular boss; a fixing assembly, including a busbar frame embedded in the first installation groove, the busbar frame is provided with a first rectangular groove and a second rectangular groove on both sides, the middle of the busbar frame is provided with a mounting platform, a branching clamp is fixed in the mounting platform, and a busbar copper bus is connected to the branching clamp.

[0009] As a preferred solution of the waterproof busbar installation structure described in the present invention, wherein: a plurality of bent pipes are provided at the bottom of the first installation groove, and the bent pipes are arranged at equal intervals in the horizontal direction; a plurality of second installation grooves are provided in the middle of the first installation groove, and the second installation grooves are arranged at equal intervals in the horizontal direction; and a rectangular hole is provided in the second installation groove.

[0010] As a preferred solution of the waterproof busbar installation structure of the present invention, second rectangular bosses are arranged inwardly of the first rectangular boss at equal intervals.

[0011] As a preferred solution of the waterproof busbar installation structure of the present invention, wherein: a first sealing ring is provided at the outermost edges of both sides of the busbar frame, and a first fixing hole is provided inside the first sealing ring.

[0012] As a preferred solution of the waterproof busbar installation structure described in the present invention, wherein: second rectangular grooves are arranged inwardly and at equal intervals from the first rectangular groove, the second rectangular groove includes a transverse portion, a water collecting trough is provided on the side wall below the transverse portion, a plurality of drainage grooves are arranged in the water collecting trough at equal intervals along the transverse direction, slopes are provided on both sides of the drainage grooves, and the drainage grooves are located between adjacent second installation grooves.

[0013] As a preferred solution of the waterproof busbar installation structure of the present invention, a second sealing ring is provided at the outermost edge of the installation platform, and installation holes are arranged equidistantly in the transverse direction on the installation platform, and baffles are provided between adjacent installation holes.

[0014] As a preferred solution of the waterproof busbar installation structure described in the present invention, the branching clamp includes a plurality of rectangular sleeves arranged in the transverse direction and a transverse plate connecting adjacent rectangular sleeves, a second fixing hole is provided on the transverse plate, and a rectangular through hole is provided in the rectangular sleeve.

[0015] As a preferred solution of the waterproof busbar installation structure of the present invention, when the busbar copper bar is connected to the branching clamp, the busbar copper bar passes through the rectangular through hole and the rectangular hole at the same time and extends into the interior of the cabinet.

[0016] As a preferred solution of the waterproof busbar installation structure described in the present invention, a drainage pipeline is provided in the busbar frame, and the drainage pipeline includes a main channel and branches connected to the bottom of each drainage groove, and the main channel is connected to the bend pipe in the first installation groove.

[0017] As a preferred solution of the waterproof busbar mounting structure described in the present invention, wherein: the gap generated by the first rectangular boss embedded in the first rectangular groove and the gap generated by the second rectangular boss embedded in the second rectangular groove form a maze structure, the maze structure includes a first maze structure in the upper part and a second maze structure in the lower part, the width of the gap in the first maze structure decreases from top to bottom, and the width of the gap in the second maze structure increases from top to bottom.

[0018] The beneficial effects of the present invention are as follows: the gap generated after the cabinet assembly and the fixed assembly are connected forms a maze structure, and the maze structure with the gap constantly changing can block the infiltrated water. At the same time, in order to prevent a large amount of water vapor from gathering and overflowing from the maze structure, the gathered water can be completely discharged out of the bus frame through the drainage pipe, thereby further improving the waterproof performance. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] 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 labor. Among them:

[0020] Figure 1 A schematic structural diagram of a waterproof busbar installation structure according to an embodiment of the present invention;

[0021] Figure 2 A schematic structural diagram of a waterproof busbar installation structure cabinet assembly provided by the present invention;

[0022] Figure 3 A schematic structural diagram of a waterproof busbar installation structure fixing assembly provided by the present invention;

[0023] Figure 4 A front view of a waterproof busbar installation structure fixing assembly provided by the present invention;

[0024] Figure 5 A schematic diagram of the cross-sectional structure of a waterproof busbar installation structure A provided by the present invention;

[0025] Figure 6 A schematic diagram of the cross-sectional structure of a waterproof busbar installation structure B provided by the present invention

[0026] Figure 7 A schematic diagram of a half-section structure of a waterproof busbar installation structure fixing assembly provided by the present invention;

[0027] Figure 8 A front view of a waterproof busbar installation structure provided by the present invention;

[0028] Fig. 9 A schematic diagram of the cross-sectional structure of a waterproof busbar installation structure C provided by the present invention;

[0029] Fig.10 The figure is a schematic cross-sectional structure diagram of a waterproof busbar installation structure D provided by the present invention. DETAILED DESCRIPTION

[0030] 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.

[0031] 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.

[0032] Secondly, the present invention is described in detail with reference to schematic diagrams. 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.

[0033] Furthermore, 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.

[0034] Example 1

[0035] Reference Figure 1 The present embodiment provides a waterproof busbar installation structure, including a cabinet assembly 100, including a cabinet side panel 101, the cabinet side panel 101 is provided with a first installation groove 101a, and the first installation groove 101a is provided with a first rectangular boss 102 and a second rectangular boss 103; a fixing assembly 200, including a busbar frame 201 embedded in the first installation groove 101a, both sides of the busbar frame 201 are provided with a first rectangular groove 202 and a second rectangular groove 203, a mounting platform 204 is provided in the middle of the busbar frame 201, a branching clamp 205 is fixed in the mounting platform 204, and a busbar copper bar 206 is connected to the branching clamp 205.

[0036] Specifically, the cabinet assembly 100 is a part of the entire low-voltage cabinet, mainly located on the side walls on both sides of the low-voltage cabinet. Multiple cabinets are connected through the busbar copper bar 206, and the busbar copper bar 206 is directly exposed to the outside and is easily exposed to water, which may cause electrical short circuits or even fires, which is very dangerous. Even if the gap between adjacent cabinets is almost zero, humid water vapor may still adhere to the busbar copper bar 206, and through the fixing assembly 200 and the cabinet assembly matched therewith, firstly, the part of the busbar copper bar 206 that may be exposed to the outside can be wrapped to avoid contact with the air; secondly, there will still be a gap between the busbar frame 201 and the cabinet side panel 101 after installation. The staggered protrusion structures on the busbar frame 201 and the cabinet side panel 101 can block the water that passes through the installation gap, greatly improving the waterproof performance of the busbar copper bar 206.

[0037] Preferably, the busbar copper busbar 206 is fixed by passing through the through holes on the branching clamp 205, and the through holes on the branching clamp 205 are arranged at equal intervals, which can ensure that the busbar copper busbar 206 is arranged neatly after installation and prevent adjacent busbar copper busbars 206 from contacting each other; thereafter, the branching clamp 205 with the busbar copper busbar 206 installed is fixed to the mounting platform 204 by bolts and other connecting parts. In addition to fixing the branching clamp 205 to the busbar frame 201 through the mounting platform 204, a mounting hole consistent with the shape of the mounting platform 204 is also opened, which can completely fix the branching clamp 205 and prevent the branching clamp 205 from loosening.

[0038] Furthermore, a maze structure 208 can be formed through the gap generated by the installation of the bus frame 201 and the cabinet side panel 101. It is difficult for humid water vapor to pass through the tortuous maze structure 208 and cannot contact the bus copper bus 206. At the same time, a drainage structure is also provided in the maze structure 208, which can enable water vapor that enters the maze structure 208 but cannot pass through to be discharged out of the cabinet along the preset drainage channel, further improving the waterproof ability of the device.

[0039] Example 2

[0040] Reference Figure 5, which is the second embodiment of the present invention, and is based on the previous embodiment, and is different from the previous embodiment in that: a plurality of elbows 101b are provided at the bottom of the first mounting groove 101a, and the elbows 101b are arranged at equal intervals in the horizontal direction; a plurality of second mounting grooves 104 are provided in the middle of the first mounting groove 101a, and the second mounting grooves 104 are arranged at equal intervals in the horizontal direction, and a rectangular hole 104a is provided in the second mounting groove 104; second rectangular bosses 103 are arranged at equal intervals inwardly of the first rectangular boss 102; first sealing rings 201a are provided at the outermost edges of both sides of the busbar frame 201, and first fixing holes 201b are provided on the inner side of the first sealing ring 201a; second rectangular grooves 203 are arranged at equal intervals inwardly of the first rectangular groove 202, and the second rectangular groove 203 includes a transverse portion 203a, and a water collecting tank 203a-1 is provided on the side wall below the transverse portion 203a, A plurality of drainage grooves 203b are arranged equidistantly in the horizontal direction in the water collecting groove 203a-1, and slopes 203b-1 are arranged on both sides of the drainage grooves 203b, and the drainage grooves 203b are located between adjacent second mounting grooves 104; a second sealing ring 204a is provided at the outermost edge of the mounting platform 204, and mounting holes 204b arranged equidistantly in the horizontal direction are provided on the mounting platform 204, and a baffle 204c is provided between adjacent mounting holes 204b; the branching clamp 205 includes a plurality of rectangular sleeves 205a arranged in the horizontal direction and a horizontal plate 205b connecting adjacent rectangular sleeves 205a, a second fixing hole 205c is provided on the horizontal plate 205b, and a rectangular through hole 205a-1 is provided in the rectangular sleeve 205a; when the busbar copper bar 206 is connected to the branching clamp 205, the busbar copper bar 206 passes through the rectangular through hole 205a-1 and the rectangular hole 104a at the same time and extends into the interior of the cabinet.

[0041] Specifically, the shape of the second mounting groove 104 is consistent with the shape of the rectangular sleeve 205a. When the branching clamp 205 is installed with the bus frame 201, each rectangular sleeve 205a is embedded in the corresponding second mounting groove 104, so as to realize secondary fixation of the branching clamp 205 and prevent the branching clamp 205 from loosening. The rectangular hole 104a, the rectangular through hole 205a-1 and the busbar copper busbar 206 are consistent in shape. After the installation is completed, the busbar copper busbar 206 passes through the rectangular through hole 205a-1 and the rectangular hole 104a in turn, and extends into the interior of the cabinet to complete the fixation.

[0042] Preferably, the first rectangular boss 102 and the second rectangular boss 103 have the same width and height. When the busbar frame 201 is connected to the cabinet side panel 101, the first rectangular boss 102 is inserted into the first rectangular groove 202, and the second rectangular boss 103 is inserted into the second rectangular groove 203. After the boss and the groove are installed, the gap between the two forms a tortuous channel. The channel formed by the gap can introduce water or water vapor into the channel, thereby preventing moisture and water vapor from accumulating in large quantities on the surface of the busbar frame 201 and then directly penetrating into the interior of the cabinet.

[0043] Furthermore, when the busbar frame is placed vertically, a water collecting trough 203a-1 is provided below the second rectangular groove 203, which can collect the water vapor entering the last section of the maze, and guide the water in the water collecting trough 203a-1 to the drainage trough 203b through the slope 203b-1 provided on the water collecting trough 203a-1, and drain all the water through the drainage pipe 207 at the bottom of the drainage trough 203b. Through the cooperation between the water collecting trough 203a-1 and the drainage trough 203b, it is possible to prevent a large amount of water from accumulating and filling up the maze structure 208, and then causing water to overflow from the maze structure 208. By actively guiding the water that penetrates into the maze structure 208, it is possible to prevent the water vapor from contacting with the busbar copper bar 206, which fully reflects the waterproof performance of the device.

[0044] It should be noted that the first fixing hole 201b is arranged on one side of the bus frame 201, and the other side of the bus frame 201 is also provided with a fixing hole, but the fixing holes on both sides are staggered and not connected, which can ensure that when the bus frame 201 is fixed to the cabinet side panels 101 on both sides, the thickness of the bus frame 201 is reduced as much as possible, so that the mass of the bus frame is reduced, thereby reducing material consumption and saving costs.

[0045] Example 3

[0046] Reference Figure 5 , which is the third embodiment of the present invention, this embodiment provides a waterproof busbar installation structure, which is based on the previous embodiment and is different from the previous embodiment in that: a drainage pipeline 207 is provided in the busbar frame 201, and the drainage pipeline 207 includes a main channel 207a and a branch 207b connected to the bottom of each drainage groove 203b, and the main channel 207a is connected to the elbow 101b in the first installation groove 101a; the gap generated by the first rectangular boss 102 embedded in the first rectangular groove 202 and the gap generated by the second rectangular boss 103 embedded in the second rectangular groove 203 form a maze structure 208, and the maze structure 208 includes a first maze structure 208a in the upper part and a maze structure 208b in the lower part, and the width of the gap of the first maze structure 208a decreases from top to bottom, and the width of the gap of the second maze structure 208b increases from top to bottom.

[0047] Specifically, the number of main channels 207a is consistent with the number of bends 101b, and the main channels 207a extend to the bottom of the busbar frame 201 and communicate with the bends 101b, so that each main channel 207a can drain the water gathered in the maze structure 208 to the outside of the cabinet through the bends 101b.

[0048] Preferably, the fixing assembly 200 is in a vertical state after installation, and the first labyrinth structure 208a is located above the fixing assembly 200. When the fixing assembly 200 is connected to the cabinet side panels 101 on both sides, there is a gap between the busbar frame 201 and the cabinet side panels 101 that allows access to the labyrinth structure 208. The closer to the mounting platform 204, the smaller the gap between the labyrinth structures 208. When water vapor enters the labyrinth structure along the gap, as the water vapor goes deeper into the labyrinth structure 208, the greater the resistance it encounters. Therefore, all water vapor will be confined inside the labyrinth structure 208 and cannot approach the mounting platform 204.

[0049] In this embodiment, when the working environment of the cabinet becomes humid, the humidity in the air increases, and water vapor will enter the labyrinth structure 208 along the gap between the fixing assembly 200 and the cabinet side panel 101. As the water vapor goes deeper and deeper into the labyrinth structure 208, the gap of the labyrinth structure 208 becomes smaller and smaller. In addition, the path formed by the labyrinth structure 208 is tortuous, and the deeper the water vapor goes into the interior, the greater the resistance it encounters. It will eventually be blocked by the labyrinth structure 208 and be trapped inside the labyrinth structure 208. When more and more water vapor enters the labyrinth structure 208, the water vapor will slowly liquefy and be collected in the water collection tank 203a-1. The liquefied water will enter the drainage tank 203b along the slope 203b-1, and then flow into the drainage pipe 207 through the branch 207b at the bottom of the drainage tank 203b. Finally, the water in each branch 207b will be gathered into the main channel 207a and discharged out of the cabinet through the elbow 101b.

[0050] The drainage structure can prevent water vapor from remaining in the maze structure 208 for a long time, prevent the short circuit caused by water vapor infiltrating the busbar copper bus 206 in advance, and further improve the waterproof performance of the device by draining the accumulated water vapor.

[0051] By setting up this device, most of the water can be isolated at the first sealing ring 201a, and a very small amount of water and water vapor will enter the gap at the connection. Through the cooperation of the boss and the groove, the gap at the connection can form a series of tortuous maze structures 208. It is difficult for water entering the gap to pass through the entire maze structure 208 and contact the busbar copper bar 206, thereby improving the waterproof performance of the busbar frame 201; at the same time, in order to prevent water from accumulating in the maze structure 208, a drainage groove 203b and a drainage pipe 207 connected to the drainage groove 203b are provided at the bottom of the maze structure 208, which can completely drain the water accumulated in the maze structure 208, further improving the waterproof performance, and compared with measures such as applying a waterproof coating, the waterproof function achieved by the maze structure 208 is more efficient and convenient, and disassembly and assembly as well as maintenance are more time-saving and labor-saving.

[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, and parameter values ​​(e.g., temperature, pressure, etc.), installation arrangement, 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 of performing the function described herein, 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 numerous 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 busbar installation structure, characterized in that: include, A cabinet assembly (100) comprises a cabinet side panel (101), wherein the cabinet side panel (101) is provided with a first mounting groove (101a), and wherein a first rectangular boss (102) and a second rectangular boss (103) are provided in the first mounting groove (101a); A fixing assembly (200) comprises a busbar frame (201) embedded in the first mounting groove (101a), a first rectangular groove (202) and a second rectangular groove (203) being provided on both sides of the busbar frame (201), a mounting platform (204) being provided in the middle of the busbar frame (201), a branching clamp (205) being fixed in the mounting platform (204), and a busbar copper bar (206) being connected to the branching clamp (205).

2. The waterproof busbar installation structure according to claim 1, characterized in that: A plurality of curved pipes (101b) are provided at the bottom of the first installation groove (101a), and the curved pipes (101b) are arranged at equal intervals in the transverse direction. A plurality of second installation grooves (104) are provided in the middle of the first installation groove (101a), and the second installation grooves (104) are arranged at equal intervals in the transverse direction. A rectangular hole (104a) is provided in the second installation groove (104).

3. The waterproof busbar installation structure according to claim 2, characterized in that: Second rectangular bosses (103) are arranged inwardly of the first rectangular boss (102) at equal intervals.

4. The waterproof busbar installation structure according to claim 3, characterized in that: The outermost edges of both sides of the busbar frame (201) are each provided with a first sealing ring (201a), and the inner side of the first sealing ring (201a) is provided with a first fixing hole (201b).

5. The waterproof busbar installation structure according to claim 4, characterized in that: A second rectangular groove (203) is arranged inwardly of the first rectangular groove (202) at equal intervals, the second rectangular groove (203) comprises a transverse portion (203a), a water collecting groove (203a-1) is arranged on the side wall below the transverse portion (203a), a plurality of drainage grooves (203b) are arranged in the water collecting groove (203a-1) at equal intervals in the transverse direction, slopes (203b-1) are arranged on both sides of the drainage groove (203b), and the drainage groove (203b) is located between adjacent second mounting grooves (104).

6. The waterproof busbar installation structure according to claim 5, characterized in that: The outermost edge of the mounting platform (204) is provided with a second sealing ring (204a), the mounting platform (204) is provided with mounting holes (204b) arranged equidistantly in the transverse direction, and baffles (204c) are provided between adjacent mounting holes (204b).

7. The waterproof busbar installation structure according to claim 6, characterized in that: The line splitter (205) comprises a plurality of rectangular sleeves (205a) arranged in a transverse direction and a transverse plate (205b) connecting adjacent rectangular sleeves (205a); a second fixing hole (205c) is provided on the transverse plate (205b); and a rectangular through hole (205a-1) is provided in the rectangular sleeve (205a).

8. The waterproof busbar installation structure according to claim 7, characterized in that: When the busbar copper bar (206) is connected to the branching clamp (205), the busbar copper bar (206) simultaneously passes through the rectangular through hole (205a-1) and the rectangular hole (104a) and extends into the interior of the cabinet.

9. The waterproof busbar installation structure according to claim 8, characterized in that: A drainage pipeline (207) is provided in the busbar frame (201), and the drainage pipeline (207) comprises a main channel (207a) and a branch (207b) connected to the bottom of each drainage groove (203b), and the main channel (207a) is connected to the elbow (101b) in the first installation groove (101a).

10. The waterproof busbar installation structure according to claim 9, characterized in that: The gap generated by the first rectangular boss (102) embedded in the first rectangular groove (202) and the gap generated by the second rectangular boss (103) embedded in the second rectangular groove (203) form a maze structure (208), and the maze structure (208) includes a first maze structure (208a) in the upper part and a second maze structure (208b) in the lower part. The width of the gap in the first maze structure (208a) decreases from top to bottom, and the width of the gap in the second maze structure (208b) increases from top to bottom.

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