Waterproof bus mounting structure

Abstract

The utility model discloses a waterproof bus installation structure in the bus waterproof field, which comprises a cabinet body assembly and 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 utility model are that the gaps generated after the cabinet body assembly and the fixing assembly are connected form the 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 utility model relates to bus waterproof field especially, it is a waterproof bus installation structure. BACKGROUND

[0002] Low voltage cabinet is the key equipment for distributing electric energy in power system, and the bus in the low voltage cabinet is the important part for connecting each electrical element and transmitting electric energy, the adjacent low voltage cabinets are firstly connected through bus copper bar, then the bus copper bar is connected with the bus in the low voltage cabinet, forming the transmission channel of electric power, and the bus copper bar is generally fixed on the low voltage cabinet through the bus frame.

[0003] However, the low voltage cabinet used in outdoor or humid environment, because the bus copper bar is partly located outside the low voltage cabinet, when water is attached to the bus copper bar, it will cause electrical short circuit, resulting in equipment damage and even fire, and humid air will also cause corrosion to the bus, reduce its conductivity and mechanical strength, and increase the maintenance cost.

[0004] The bus frame of the existing low voltage cabinet is mostly in the form of two bus frames spliced by screw rods, which cannot meet the waterproof function requirement, and some waterproof measures on the market, such as sealant and waterproof coating, may fail in long-term operation and cannot provide durable protection, and when the bus needs to be replaced due to other problems, the removal of the bus frame will damage the waterproof coating, and the waterproof coating needs to be repainted, which is complicated to maintain and increases the operation difficulty and time cost. SUMMARY

[0005] The purpose of this part is to summarize some aspects of the embodiments of the utility model and briefly introduce some preferred embodiments, which may be simplified or omitted in this part and the abstract of the specification and the utility model name to avoid obscuring the purpose of this part, the abstract of the specification and the utility model name, and such simplification or omission cannot be used to limit the scope of the utility model.

[0006] In view of the problem that the bus is corroded by humid air or water and causes electrical short circuit in the prior art, the utility model is proposed.

[0007] Therefore, the technical problem to be solved by the utility model is how to avoid the contact between the bus copper bar and water.

[0008] To solve the above technical problems, the utility model provides technical scheme as follows: A waterproof busbar installation structure, comprising, cabinet assembly, including cabinet side plate, be equipped with first installation groove on the cabinet side plate, be equipped with first rectangle boss and second rectangle boss in the first installation groove, fixed component, including the busbar frame embedded in the first installation groove, both sides of the busbar frame are equipped with first rectangle groove and second rectangle groove, the installation platform is equipped with in the busbar frame middle part, the installation platform is fixed with the line distribution clamp in, the line distribution clamp is connected with the busbar copper bar.

[0009] As a preferred scheme of the waterproof busbar installation structure, wherein: the first installation groove bottom is equipped with a plurality of elbow pipes, the elbow pipes are arranged along the horizontal direction at equal intervals, the first installation groove middle part is equipped with a plurality of second installation grooves, the second installation grooves are arranged along the horizontal direction at equal intervals, the second installation grooves are equipped with rectangular holes.

[0010] As a preferred scheme of the waterproof busbar installation structure, wherein: the first rectangle boss is inwardly and equally spaced with a second rectangle boss.

[0011] As a preferred scheme of the waterproof busbar installation structure, wherein: the outermost edge of the busbar frame is equipped with a first sealing ring, and the inner side of the first sealing ring is equipped with a first fixing hole.

[0012] As a preferred scheme of the waterproof busbar installation structure, wherein: the first rectangle boss is inwardly and equally spaced with a second rectangle boss, the second rectangle boss includes a horizontal part, a water collecting groove is arranged on the lower sidewall of the horizontal part, a plurality of drainage grooves are arranged in the water collecting groove along the horizontal direction at equal intervals, and slopes are arranged on both sides of the drainage grooves.

[0013] As a preferred scheme of the waterproof busbar installation structure, wherein: the outermost edge of the installation platform is equipped with a second sealing ring, the installation platform is equipped with installation holes arranged along the horizontal direction at equal intervals, and baffles are arranged between adjacent installation holes.

[0014] As a preferred scheme of the waterproof busbar installation structure, wherein: the line distribution clamp includes a plurality of rectangular sleeves arranged along the horizontal direction and a horizontal plate connecting adjacent rectangular sleeves, the horizontal plate is equipped with a second fixing hole, and the rectangular sleeve is equipped with a rectangular through hole.

[0015] As a preferred scheme of the waterproof busbar installation structure, wherein: when the busbar copper bar is connected with the line distribution clamp, the busbar copper bar simultaneously passes through the rectangular through hole and the rectangular hole and extends into the cabinet interior.

[0016] As an preferred scheme of the waterproof busbar installation structure, wherein: the busbar frame is internally provided with a drainage pipeline, the drainage pipeline comprises a main channel and branch channels connected with the bottoms of the drainage grooves, and the main channel is communicated with the bend pipe in the first installation groove.

[0017] As an preferred scheme of the waterproof busbar installation structure, wherein: the gap generated by embedding the first rectangular boss into the first rectangular groove and the gap generated by embedding the second rectangular boss into the second rectangular groove form a labyrinth structure, the labyrinth structure comprises a first labyrinth structure in the upper half and a second labyrinth structure in the lower half, the width of the gap of the first labyrinth structure decreases from top to bottom, and the width of the gap of the second labyrinth structure increases from top to bottom.

[0018] The cabinet assembly and the fixing assembly are connected, and the gap generated by the connection forms a labyrinth structure; the labyrinth structure with the changing gap can block the infiltrated water; in order to prevent a large amount of water vapor from gathering and overflowing from the labyrinth structure, the drainage pipeline can drain all the gathered water out of the busbar frame, and the waterproof performance is further improved. BRIEF DESCRIPTION OF DRAWINGS

[0019] In order to more clearly illustrate the technical scheme of the embodiments of the utility model, the drawings needed to be used in the embodiment description will be briefly introduced, and obviously, the drawings in the following description are only some embodiments of the utility model, and other drawings can be obtained according to the drawings by the ordinary skilled in the art without paying the creative labor. Wherein:

[0020] Figure 1 The structural schematic diagram of the waterproof busbar installation structure of an embodiment provided by the utility model is shown in the figure.

[0021] Figure 2 The structural schematic diagram of the cabinet assembly of the waterproof busbar installation structure provided by the utility model is shown in the figure.

[0022] Figure 3 The structural schematic diagram of the fixing assembly of the waterproof busbar installation structure provided by the utility model is shown in the figure.

[0023] Figure 4 The front view of the fixing assembly of the waterproof busbar installation structure provided by the utility model is shown in the figure.

[0024] Figure 5 The sectional structure schematic diagram of the waterproof busbar installation structure A provided by the utility model is shown in the figure.

[0025] Figure 6 The sectional structure schematic diagram of the waterproof busbar installation structure B provided by the utility model is shown in the figure.

[0026] Figure 7 A half cut structure schematic view of the waterproof busbar installation structure fixing assembly is provided in the utility model;

[0027] Figure 8 A front view of the waterproof busbar installation structure is provided in the utility model;

[0028] Figure 9 A cross section structure schematic view of the waterproof busbar installation structure C is provided in the utility model;

[0029] Figure 10 A cross section structure schematic view of the waterproof busbar installation structure D is provided in the utility model. DETAILED DESCRIPTION

[0030] In order to make the above objects, features and advantages of the utility model more apparent, comprehensible and understandable, the specific embodiments of the utility model will be described in detail below with reference to the drawings.

[0031] In the following description, a lot of specific details are set forth in order to facilitate a full understanding of the utility model, but the utility model can also be implemented in other ways different from the description, and the person skilled in the art can make similar generalization without departing from the connotation of the utility model, therefore the utility model is not limited by the specific embodiments disclosed below.

[0032] Secondly, the utility model is described in detail in combination with the schematic view, when the utility model embodiments are described in detail, for the convenience of description, the sectional view of the device structure will be partially enlarged without the general proportion, and the schematic view is only an example, which should not limit the scope of protection of the utility model herein. In addition, the three-dimensional spatial dimensions of length, width and depth should be contained in actual manufacture.

[0033] Thirdly, the "one embodiment" or "embodiment" referred to herein can contain the specific features, structures or characteristics in at least one implementation of the utility model. In the specification, "in one embodiment" appearing in different places does not refer to the same embodiment, nor is it an independent or alternative embodiment excluding other embodiments.

[0034] Embodiment 1

[0035] Reference Figure 1The embodiment provides a waterproof busbar mounting structure, which comprises a cabinet assembly 100, a cabinet side plate 101, a first mounting groove 101a provided on the cabinet side plate 101, a first rectangular boss 102 and a second rectangular boss 103 provided in the first mounting groove 101a, a fixing assembly 200, a busbar frame 201 embedded in the first mounting groove 101a, first rectangular grooves 202 and second rectangular grooves 203 provided on both sides of the busbar frame 201, an installation table 204 provided in the middle of the busbar frame 201, and a wire distribution clamp 205 fixed in the installation table 204, and a busbar copper bar 206 connected to the wire distribution clamp 205.

[0036] Specifically, the cabinet assembly 100 is part of the whole low-voltage cabinet, mainly located on the side walls of both sides of the low-voltage cabinet, and a plurality of cabinets are connected through the busbar copper bar 206, and the busbar copper bar 206 is directly exposed and is easy to contact water, which may cause electrical short circuit and even fire, and is relatively 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, first, the part of the busbar copper bar 206 that may be exposed can be wrapped, avoiding contact with air; second, a gap may still exist between the busbar frame 201 and the cabinet side plate 101 after installation, and through the staggered protruding structures on the busbar frame 201 and the cabinet side plate 101, water passing through the installation gap can be blocked, greatly improving the waterproof performance of the busbar copper bar 206.

[0037] Preferably, the busbar copper bar 206 is fixed by penetrating through the through hole of the wire distribution clamp 205, and the through holes of the wire distribution clamp 205 are arranged at equal intervals, so that the busbar copper bar 206 can be arranged in order after installation and adjacent busbar copper bars 206 are prevented from contacting each other; then, the wire distribution clamp 205 provided with the busbar copper bar 206 is fixed on the installation table 204 through a bolt or other connecting member, and the installation table 204 can not only fix the wire distribution clamp 205 and the busbar frame 201, but also has installation holes with the same shape as the installation table 204, so that the wire distribution clamp 205 can be completely fixed and is prevented from loosening.

[0038] Further, the gap generated after the installation of the busbar frame 201 and the cabinet side plate 101 can form a labyrinth structure 208, and humid water vapor is difficult to pass through the tortuous labyrinth structure 208 and thus cannot contact the busbar copper bar 206, and meanwhile, a drainage structure is arranged in the labyrinth structure 208, so that water vapor that enters the labyrinth structure 208 but cannot pass through can be discharged out of the cabinet along a preset drainage channel, further improving the waterproof capacity of the device.

[0039] Reference Figure 5For the second embodiment of the utility model, this embodiment is based on the previous embodiment, and is different from the previous embodiment in that: the first installation groove 101a bottom is equipped with a plurality of elbow pipes 101b, the elbow pipes 101b are all arranged equidistantly along the transverse direction, the first installation groove 101a middle part is equipped with a plurality of second installation grooves 104, the second installation grooves 104 are arranged equidistantly along the transverse direction, the second installation grooves 104 are equipped with rectangular holes 104a, the first rectangular boss 102 is equidistantly provided with a second rectangular boss 103 inward, the busbar frame 201 both sides outermost edges are all equipped with first sealing rings 201a, the first sealing ring 201a inside is equipped with first fixing holes 201b, the first rectangular groove 202 is equidistantly provided with a second rectangular groove 203 inward, the second rectangular groove 203 includes a transverse part 203a, the transverse part 203a lower side wall is equipped with a water collecting groove 203a-1, the water collecting groove 203a-1 is equidistantly equipped with a plurality of drainage grooves 203b along the transverse direction, the drainage grooves 203b both sides are equipped with slopes 203b-1, the drainage grooves 203b are located between adjacent second installation grooves 104, the installation platform 204 outermost edge is equipped with a second sealing ring 204a, the installation platform 204 is equipped with installation holes 204b arranged equidistantly along the transverse direction, the adjacent installation holes 204b between are equipped with baffles 204c, the wire branch clamp 205 includes a plurality of rectangular sleeves 205a arranged along the transverse direction and a horizontal plate 205b connecting adjacent rectangular sleeves 205a, the horizontal plate 205b is equipped with second fixing holes 205c, the rectangular sleeve 205a is equipped with a rectangular through hole 205a-1, when the busbar copper bar 206 is connected with the wire branch 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 cabinet interior.

[0040] Specifically, the shape of the second installation groove 104 is consistent with the shape of the rectangular sleeve 205a, when the wire branch clamp 205 is installed with the busbar frame 201, each rectangular sleeve 205a is embedded in the corresponding second installation groove 104, realizing the secondary fixation of the wire branch clamp 205, preventing the wire branch clamp 205 from loosening, the rectangular hole 104a, the rectangular through hole 205a-1 and the shape of the busbar copper bar 206 are consistent, after installation is completed, the busbar copper bar 206 sequentially passes through the rectangular through hole 205a-1 and the rectangular hole 104a and extends into the cabinet interior to complete fixation.

[0041] Preferably, the width of the first rectangular boss 102 and the second rectangular boss 103 is consistent, and the height is also consistent, when the busbar frame 201 is connected with the cabinet side plate 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 zigzag channel, the channel generated by the gap can introduce water or water vapor into the channel, avoiding the case that the humid water vapor is directly penetrated into the cabinet interior.

[0042] Further, when the busbar frame is vertically placed, a water collecting groove 203a-1 is arranged below the second rectangular groove 203, which can collect the water vapor entering the last section of the labyrinth, and guide the water in the water collecting groove 203a-1 to the drain groove 203b through the slope 203b-1 arranged on the water collecting groove 203a-1, and then drain the water through the drain pipeline 207 at the bottom of the drain groove 203b. Through the cooperation of the water collecting groove 203a-1 and the drain groove 203b, it can prevent the labyrinth structure 208 from being filled due to the accumulation of a large amount of water, and thus prevent the water from overflowing from the labyrinth structure 208. By actively guiding the water into the labyrinth structure 208, the contact between the water vapor and the busbar copper bar 206 is prevented, and the waterproof performance of the device is fully reflected.

[0043] It should be noted that the first fixing hole 201b is arranged on one side of the busbar frame 201, and the other side of the busbar 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 busbar frame 201 is fixed with the cabinet side plates 101 on both sides, the thickness of the busbar frame 201 is as small as possible, the mass of the busbar frame is reduced, and thus the consumption of materials is reduced and the cost is saved.

[0044] Embodiment 3

[0045] Reference Figure 5 For the third embodiment of the utility model, the waterproof busbar mounting structure is provided, which is based on the previous embodiment and different from the previous embodiment in that: the busbar frame 201 is provided with a drain pipeline 207, the drain pipeline 207 includes a main channel 207a and branch pipes 207b connected to the bottoms of the drain grooves 203b, and the main channel 207a is communicated with the elbow 101b in the first mounting groove 101a; the gaps generated by embedding the first rectangular boss 102 into the first rectangular groove 202 and the gaps generated by embedding the second rectangular boss 103 into the second rectangular groove 203 form a labyrinth structure 208, and the labyrinth structure 208 includes an upper half part of a first labyrinth structure 208a and a lower half part of a second labyrinth structure 208b, the width of the gap of the first labyrinth structure 208a decreases from top to bottom, and the width of the gap of the second labyrinth structure 208b increases from top to bottom.

[0046] Specifically, the number of the main channels 207a is consistent with the number of the elbow 101b, and the main channels 207a extend to the bottom of the busbar frame 201 and are communicated with the elbow 101b, so that each main channel 207a can drain the water accumulated in the labyrinth structure 208 to the outside of the cabinet through the elbow 101b.

[0047] Preferably, the fixed assembly 200 is installed in a vertical state, and the first labyrinth structure 208a is located above the fixed assembly 200. When the fixed assembly 200 is connected to the cabinet side plates 101 on both sides, there is a gap between the busbar frame 201 and the cabinet side plates 101 that can enter the labyrinth structure 208. The closer to the installation platform 204, the smaller the gap between the labyrinth structures 208. When the water vapor enters the labyrinth structure along the gap, the deeper the water vapor penetrates into the labyrinth structure 208, the greater the resistance it encounters. Therefore, all water vapor is constrained inside the labyrinth structure 208 and cannot approach the area near the installation platform 204.

[0048] In this embodiment, when the working environment of the cabinet becomes humid, the humidity in the air increases, and the water vapor enters the labyrinth structure 208 along the gap between the fixed assembly 200 and the cabinet side plates 101. As the water vapor penetrates deeper and deeper into the labyrinth structure 208, the gap between the labyrinth structures 208 becomes smaller and smaller. In addition, the path formed by the labyrinth structure 208 is tortuous, and the deeper the water vapor penetrates into the interior, the greater the resistance it encounters. Eventually, it will be blocked by the labyrinth structure 208 and be constrained 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 collecting groove 203a-1. The liquefied water will enter the drain groove 203b along the slope 203b-1, and then flow into the drain line 207 through the branch 207b at the bottom of the drain groove 203b. Finally, the water in each branch 207b flows into the main channel 207a and is discharged outside the cabinet through the elbow 101b.

[0049] Through the setting of the drainage structure, it can avoid the water vapor remaining in the labyrinth structure 208 for a long time, and prevent the short circuit caused by the water vapor penetrating into the busbar copper bar 206. Through the drainage of the accumulated water vapor, the waterproof performance of the device is further improved.

[0050] Through the setting of the device, most of the water can be isolated at the first sealing ring 201a. A 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 labyrinth structures 208. The water entering the gap is difficult to pass through the entire labyrinth structure 208 to 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 labyrinth structure 208, a drain groove 203b and a drain line 207 connected to the drain groove 203b are arranged at the bottom of the labyrinth structure 208. The water accumulated in the labyrinth structure 208 can be completely drained, further improving the waterproof performance. Compared with measures such as applying a waterproof coating, the waterproof function realized by the labyrinth structure 208 is more efficient and convenient, and the disassembly, assembly and maintenance are more time-saving and labor-saving.

[0051] It is important to note that the construction and arrangements of the application shown in the various exemplary embodiments are illustrative only. Although only a few embodiments have been described in detail in this disclosure, those skilled in the art who review this disclosure will readily appreciate that many modifications can be made to the embodiments without departing from the novel teachings and advantages of the subject matter described herein. For example, elements described as integrated in a single unit can be separated, elements described as separate can be integrated, and the position, number, shape, and arrangements of elements can be varied. Accordingly, all such modifications are intended to be included within the scope of the present inventive subject matter. The order or sequence of any process or method steps can be varied or re-sequenced without departing from the general nature of the claims. Any "means plus function" clauses are intended to cover the structures described herein as performing the recited functionality and not only structural equivalents but also equivalent structures. Other substitutions, modifications, changes, and omissions can be made in the design, operating conditions, and arrangement of the exemplary embodiments without departing from the scope of the present inventive subject matter. Accordingly, the present inventive subject matter is not limited to the particular embodiments described and illustrated herein, but extends to equivalents of which the foregoing describes are intended to cover.

[0052] Furthermore, in order to provide a concise description of the exemplary embodiments, not all features of an actual implementation can be described (i.e., those pertaining to the

[0053] It is understood that in the development of any actual implementation, as in any engineering or design project, numerous implementation-specific decisions can be made. Such development efforts can inevitably lead to a number of substitutions, modifications, changes, and omissions of parts illustrated as having a specific configuration. Such are the natural consequences of research and development efforts, and

[0054] It should be noted that the above examples are only used to illustrate the technical solutions of the present application but not limit the present application, and although the present application 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 application can be modified or replaced equivalently without departing from the spirit and scope of the present application, and all should be included in the scope of the claims of the present application.

Claims

1. A waterproof busbar installation structure characterized by: Including, The cabinet body assembly (100) includes a cabinet side plate (101), and the cabinet side plate (101) is provided with a first installation slot (101a), and the first installation slot (101a) is provided with a first rectangular boss (102) and a second rectangular boss (103); The fixed assembly (200) includes a busbar frame (201) embedded in the first installation slot (101a), and the busbar frame (201) is provided with a first rectangular groove (202) and a second rectangular groove (203) on both sides, and the busbar frame (201) is provided with an installation table (204) in the middle, and the installation table (204) is fixedly provided with a wire distribution clamp (205), and the wire distribution clamp (205) is connected with a busbar copper bar (206).

2. The waterproof busbar mounting structure according to claim 1, characterized by: The first installation slot (101a) is provided with a plurality of bent pipes (101b) at the bottom, the bent pipes (101b) are arranged at equal intervals in the transverse direction, and the first installation slot (101a) is provided with a plurality of second installation slots (104) in the middle, the second installation slots (104) are arranged at equal intervals in the transverse direction, and the second installation slots (104) are provided with rectangular holes (104a).

3. The waterproof busbar mounting structure according to claim 2, characterized by: The first rectangular boss (102) is provided with a second rectangular boss (103) at equal intervals inward.

4. The waterproof busbar installation structure according to claim 3, characterized by: The outermost edges of the busbar frame (201) are provided with first sealing rings (201a), and the inner sides of the first sealing rings (201a) are provided with first fixing holes (201b).

5. The waterproof busbar mounting structure according to claim 4, characterized by: The first rectangular groove (202) is provided with a second rectangular groove (203) at equal intervals inward, and the second rectangular groove (203) includes a transverse part (203a), and a water collecting groove (203a-1) is arranged on the sidewall below the transverse part (203a), a plurality of drainage grooves (203b) are arranged at equal intervals in the transverse 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 installation slots (104).

6. The waterproof busbar mounting structure according to claim 5, characterized by: The outermost edges of the installation table (204) are provided with second sealing rings (204a), and the installation table (204) is provided with installation holes (204b) arranged at equal intervals in the transverse direction, and baffles (204c) are arranged between adjacent installation holes (204b).

7. The waterproof busbar mounting structure according to claim 6, characterized by: The wire distribution clamp (205) includes a plurality of rectangular sleeves (205a) arranged in the transverse direction and a horizontal plate (205b) connecting adjacent rectangular sleeves (205a), the horizontal plate (205b) is provided with a second fixing hole (205c), and the rectangular sleeve (205a) is provided with a rectangular through hole (205a-1).

8. The waterproof busbar installation structure according to claim 7, characterized by: When the busbar copper bar (206) is connected with the wire distribution clamp (205), the busbar copper bar (206) penetrates through the rectangular through hole (205a-1) and the rectangular hole (104a) at the same time and extends into the cabinet body.

9. The waterproof busbar mounting structure according to claim 8, characterized by: The bus frame (201) is internally provided with a drainage pipeline (207), 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 communicated with the elbow (101b) in the first installation groove (101a).

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

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