Junction box

Abstract

The utility model discloses a junction box, and relates to the technical field of electric connectors. The junction box comprises a shell, a wiring terminal and a first sealing piece, the wiring terminal is connected with a connecting cable, a containing cavity is formed in the shell, the wiring terminal is arranged in the containing cavity, a mounting part is further arranged on the wall face of the shell, penetrates through the wall face of the shell and is communicated with the containing cavity, and the mounting part is used for mounting the connecting cable. The surface of the first sealing member is provided with a hydrophobic layer, and the first sealing member is disposed at the installation part and enables the connection cable to be in sealing fit with the housing. According to the junction box, the hydrophobic layer is arranged on the surface of the first sealing element, so that the hidden danger that liquid enters the accommodating cavity through a tiny gap between the first sealing element and the shell can be reduced or even eliminated, and the sealing performance of the junction box can be improved.

Description

Technical Field

[0001] The utility model relates to the technical field of electric connectors, in particular to a junction box. Background Art

[0002] During the circuit layout, two or more cables need to be connected through a junction box to achieve complex power grid layout. For outdoor power grid layout, not only do two or more lines need to be electrically connected through an electrical connection device, but the electrical connection device also needs to be able to adapt to the outdoor environment.

[0003] In the prior art, a junction box used outdoors needs to have a hole opened in the side wall of the junction box, and then the end of the cable is inserted into the junction box through the side wall hole and connected to the terminal. However, for outdoor circuit layout, due to the complex outdoor environment, especially for underwater circuit layout, the sealing of the junction box in the prior art is insufficient, and water easily seeps into the junction box, which in turn causes the wiring to be easily damaged, affecting the reliability of the wiring. Utility Model Content

[0004] The utility model discloses a junction box to solve the technical problem that the junction box in the related art has insufficient sealing performance.

[0005] In order to solve the above problems, the utility model adopts the following technical solutions:

[0006] The utility model provides a junction box, comprising a shell, a wiring terminal and a first sealing member, wherein the wiring terminal is connected to a connecting cable, wherein a housing cavity is formed inside the shell, the wiring terminal is placed in the housing cavity, a mounting portion is further provided on the wall surface of the shell, the mounting portion penetrates through the wall surface of the shell and communicates with the housing cavity, the mounting portion is used to install the connecting cable, a hydrophobic layer is provided on the surface of the first sealing member, the first sealing member is arranged at the mounting portion and enables the connecting cable to be sealed and matched with the shell.

[0007] Further, the hydrophobic layer is located on the first surface of the first seal; or the hydrophobic layer is located on the first surface and the second surface of the first seal, wherein the first surface is a side of the first seal in contact with the shell, and the second surface and the first surface are two opposite surfaces on the first seal.

[0008] Furthermore, the hydrophobic layer is provided on the surface of the housing in contact with the first sealing member.

[0009] Further, a hydrophobic structure is formed on the first surface of the first sealing member, and the hydrophobic layer is arranged on the hydrophobic structure; or a hydrophobic structure is formed on both the first surface and the second surface of the first sealing member, and the hydrophobic layer is arranged on the hydrophobic structure; or a hydrophobic structure is provided on the surface of the shell in contact with the first sealing member, and the hydrophobic layer is arranged on the hydrophobic structure.

[0010] Furthermore, the hydrophobic structure includes a protrusion structure and / or a groove structure, and the protrusion structure and / or the groove structure are arranged at intervals.

[0011] Furthermore, the protruding height of the protruding structure and the recessed depth of the groove structure are greater than the thickness of the hydrophobic layer.

[0012] Furthermore, the thickness of the hydrophobic layer is greater than or equal to 0.5 micrometers.

[0013] Further, the shell includes a first shell and a second shell, the second shell covers the opening of the first shell, the mounting portion is arranged at the opening of the first shell, the junction box also includes a second seal, and the surface of the second seal is provided with the hydrophobic layer, the second seal is located at the opening of the second shell and makes the first shell and the second shell sealably matched.

[0014] Further, the shell includes a first shell and a second shell, the second shell covers the opening of the first shell, the mounting portion is arranged on the first shell, the junction box also includes a second seal, and the surface of the second seal is provided with the hydrophobic layer, the second seal is located at the opening of the first shell and makes the first shell and the second shell sealably cooperate.

[0015] Further, the shell includes a first shell and a second shell, the second shell covers the opening of the first shell, the mounting portion is arranged at the opening of the first shell and the opening of the second shell, the junction box also includes a second seal, and the surface of the second seal is provided with the hydrophobic layer, the second seal is located at the opening of the second shell and makes the first shell and the second shell sealably matched.

[0016] The technical solution adopted by the utility model can achieve the following beneficial effects:

[0017] The junction box of the utility model is provided with a first sealing member at the installation part, and the opening at the installation part can be sealed by the first sealing member, so that the connection cable and the shell are sealed and matched. Furthermore, a hydrophobic layer is provided on the surface of the first sealing member, and when liquid enters the tiny gap between the first sealing member and the shell, due to the low surface tension of the hydrophobic layer, the contact angle of the liquid on the surface of the hydrophobic layer is large, and the contact area between the liquid and the hydrophobic layer is small, the liquid is not easy to spread on the surface of the hydrophobic layer, and thus the liquid is not easy to enter the housing cavity of the shell through the tiny gap between the first sealing member and the shell.

[0018] It can be seen that the junction box of the utility model is provided with a hydrophobic layer on the surface of the first sealing member, which can reduce or even eliminate the hidden danger of liquid entering the accommodating cavity through the tiny gap between the first sealing member and the shell, thereby improving the sealing performance of the junction box and solving the technical problem of insufficient sealing of the junction box in the related art. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0020] Figure 1 is a schematic diagram of a junction box according to a preferred embodiment of the present application;

[0021] Figure 2 is an exploded view of a junction box according to a preferred embodiment of the present application;

[0022] Figure 3 is a schematic diagram of a junction box according to another preferred embodiment of the present application;

[0023] Figure 4 is an exploded view of a junction box according to another preferred embodiment of the present application;

[0024] Figure 5 is a schematic diagram of a junction box according to another preferred embodiment of the present application;

[0025] Figure 6 is an exploded view of a junction box according to another preferred embodiment of the present application;

[0026] Figure 7 is a schematic diagram of a first sealing member of a preferred embodiment of the present application;

[0027] Figure 8 is a first schematic diagram of a preferred embodiment of the present application in which a hydrophobic layer is provided on a first sealing member;

[0028] Fig. 9 is a second schematic diagram of a preferred embodiment of the present application in which a hydrophobic layer is provided on the first sealing member;

[0029] Fig.10 is a schematic diagram of a first sealing member of another preferred embodiment of the present application;

[0030] Fig.11 is a schematic diagram of another preferred embodiment of the present application in which a hydrophobic layer is provided on the first sealing member;

[0031] In the figure: 100, shell; 101, accommodating cavity; 102, installation part; 1021, first notch; 1022, second notch; 110, first shell; 120, second shell; 200, wiring terminal; 300, first sealing member; 310, first surface; 320, second surface; 330, installation groove; 400, connecting cable; 500, hydrophobic layer; 600, hydrophobic structure; 700, second sealing member. DETAILED DESCRIPTION

[0032] In order to make the purpose, technical solution and advantages of the utility model clearer, the technical solution of the utility model will be described in detail below. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other implementation methods obtained by ordinary technicians in this field without creative work belong to the scope of protection of the utility model.

[0033] The terms "first", "second", etc. in the specification and claims of the present application are used to distinguish similar objects, and are not used to describe a specific order or sequence. It should be understood that the data used in this way can be interchangeable under appropriate circumstances, so that the embodiments of the present application can be implemented in an order other than those illustrated or described here, and the objects distinguished by "first", "second", etc. are generally of one type, and the number of objects is not limited. For example, the first object can be one or more. In addition, "and / or" in the specification and claims represents at least one of the connected objects, and the character " / " generally indicates that the objects associated with each other are in an "or" relationship.

[0034] In order to achieve sealing during the wiring process, the junction box in the related art usually needs to be provided with a sealing ring at the opening of the junction box or the installation hole of the cable, and the sealing is achieved by squeezing the sealing ring. Although this can make the junction box have a certain degree of sealing and prevent liquid from entering the interior of the junction box, in some more extreme situations such as underwater, due to the certain water pressure underwater and the tiny gap between the sealing ring and the shell, a "capillary phenomenon" will occur, and some water will penetrate into the junction box through the tiny gap, making the junction box insufficiently sealed when used in an underwater environment.

[0035] The following is combined with Figures 1 to 11 , the junction box provided in the embodiment of the present application is described in detail through specific embodiments and their application scenarios.

[0036] The junction box of this embodiment includes a housing 100, a connection terminal 200 and a first sealing member 300. Figure 1 to Figure 6 The housing 100 can provide a mounting base for the connection terminal 200 and the first sealing member 300 .

[0037] Preferably, a receiving cavity 101 is formed inside the housing 100, and the connecting terminal 200 is installed in the receiving cavity 101. Figure 2 , Figure 4 and Figure 6 The wall of the housing 100 is also provided with a mounting portion 102, which penetrates the wall of the housing 100 and communicates with the accommodating cavity 101. The mounting portion 102 is used to mount the connecting cable 400. Figure 1 to Figure 6 When the connecting cable 400 is installed at the installation portion 102 , one end of the connecting cable 400 is connected to the connection terminal 200 , and the other end of the connecting cable 400 extends to the outside of the housing 100 .

[0038] Preferably, a hydrophobic layer 500 is provided on the surface of the first sealing member 300. Figure 8 , Fig. 9 and Fig.11 The first seal 300 is disposed at the mounting portion 102 and enables the connection cable 400 to be sealed with the housing 100. For example, the first seal 300 is made of an elastic material, such as elastic rubber, so that the connection cable 400 can be sealed with the housing 100 through deformation of the elastic material.

[0039] The hydrophobic layer 500 is made of a hydrophobic material, which has the characteristics of not absorbing water or not absorbing water easily, thereby preventing water from penetrating or passing through. Exemplarily, the hydrophobic layer 500 can be a hydrophobic film or a hydrophobic coating in the prior art. Specifically, the hydrophobic film is a polytetrafluoroethylene film, a polyethylene film, a polypropylene film, a silicone rubber film or a polyurethane film, etc.; the hydrophobic coating is a polytetrafluoroethylene coating, a fluorine coating, a silane coating, a polyurethane coating, etc. The hydrophobic layer 500 can be formed by pasting a hydrophobic film on the surface of the first sealing member 300, and the hydrophobic layer 500 can also be a coating formed by applying a hydrophobic coating on the surface of the first sealing member 300.

[0040] In the junction box of this embodiment, a first sealing member 300 is provided at the mounting portion 102, and the opening at the mounting portion 102 can be sealed by the first sealing member 300, so that the connecting cable 400 and the housing 100 are sealed and matched. Furthermore, a hydrophobic layer 500 is provided on the surface of the first sealing member 300. When liquid enters the tiny gap between the first sealing member 300 and the housing 100, due to the low surface tension of the hydrophobic layer 500, the contact angle of the liquid on the surface of the hydrophobic layer 500 is large, and the contact area between the liquid and the hydrophobic layer 500 is small, so that the liquid is not easy to spread on the surface of the hydrophobic layer 500, and thus the liquid is not easy to enter the accommodating cavity of the housing 100 through the tiny gap between the first sealing member 300 and the housing 100.

[0041] The junction box of the present embodiment is provided with a hydrophobic layer 500 on the surface of the first sealing member 300, which can reduce or even eliminate the hidden danger of liquid entering the accommodating cavity through the tiny gap between the first sealing member 300 and the housing 100, thereby improving the sealing performance of the junction box, so that the junction box of the present embodiment can be used in extreme environments such as underwater, thereby solving the technical problem of insufficient sealing of the junction box in the related art.

[0042] This embodiment also provides a variety of different junction box structures.

[0043] like Figure 1 and Figure 2 As shown, illustratively, the first structure of the junction box of this embodiment is: the housing 100 includes a first housing 110 and a second housing 120, and the second housing 120 covers the opening of the first housing 110. The first housing 110 and the second housing 120 can be a split structure, and the first housing 110 and the second housing 120 can also be rotatably matched through a rotating shaft.

[0044] like Figure 1 and Figure 2As shown, the mounting portion 102 is provided at the opening of the first shell 110. The junction box further includes a second sealing member 700. A hydrophobic layer 500 is provided on the surface of the second sealing member 700. The second sealing member 700 is located at the opening of the second shell 120 and makes the first shell 110 and the second shell 120 seal and cooperate. Specifically, the first sealing member 300 is arranged along the circumferential direction of the opening of the first shell 110. In a natural state, the first sealing member 300 at least partially protrudes from the end surface of the first shell 110, and the second sealing member 700 at least partially protrudes from the end surface of the second shell 120. When the connecting cable 400 is mounted at the mounting portion 102 and the second shell 120 covers the opening of the first shell 110, the second sealing member 700 can squeeze the connecting cable 400 and make the first sealing member 300 deform to avoid, so that the second shell 120 can cover the opening of the first shell 110, and the second shell 120 can seal and cooperate with the first shell 110.

[0045] Preferably, a mounting groove 330 may be provided at a position on the first sealing member 300 corresponding to the mounting portion 102, and the mounting groove 330 is used to place the connecting cable 400. Figure 1 and Figure 2 By providing the mounting groove 330 , the deformation degree of the first sealing member 300 can be reduced, so that the second housing 120 can be easily covered on the opening of the first housing 110 .

[0046] The structure in which the mounting portion 102 is disposed at the opening of the first housing 110 makes the processing and molding process of the mounting portion 102 easier.

[0047] like Figure 3 and Figure 4 As shown, illustratively, the second structure of the junction box of this embodiment is: the housing 100 includes a first housing 110 and a second housing 120, and the second housing 120 covers the opening of the first housing 110. The first housing 110 and the second housing 120 can be a split structure, and the first housing 110 and the second housing 120 can also be rotatably matched through a rotating shaft.

[0048] like Figure 3 and Figure 4 As shown, the mounting portion 102 is disposed on the first housing 110. Specifically, the mounting portion 102 is a through hole disposed on the wall surface of the first housing 110. Preferably, the junction box further comprises a second sealing member 700, and a hydrophobic layer 500 is disposed on the surface of the second sealing member 700. The second sealing member 700 is located at the opening of the first housing 110 and enables the first housing 110 to be sealed and matched with the second housing 120.

[0049] In this junction box structure, a first seal 300 is provided at the mounting portion 102, and a second seal 700 is provided at the opening of the first shell 110. A hydrophobic layer 500 is provided on both the first seal 300 and the second seal 700, thereby improving the sealing of the mounting portion 102 and the opening of the first shell 110, thereby improving the sealing performance of the junction box.

[0050] like Figure 5 and Figure 6 As shown, illustratively, the third structure of the junction box of this embodiment is: the housing 100 includes a first housing 110 and a second housing 120, and the second housing 120 covers the opening of the first housing 110. The first housing 110 and the second housing 120 can be a split structure, and the first housing 110 and the second housing 120 can also be rotatably matched through a rotating shaft.

[0051] like Figure 5 and Figure 6 As shown, the mounting portion 102 is disposed at the opening of the first housing 110 and the opening of the second housing 120. Specifically, the mounting portion 102 is composed of two parts, including a first notch 1021 located on the first housing 110 and a second notch 1022 located on the second housing 120. The junction box further includes a second sealing member 700, and a hydrophobic layer 500 is disposed on the surface of the second sealing member 700. The second sealing member 700 is located at the opening of the second housing 120 and enables the first housing 110 to be sealed with the second housing 120.

[0052] Specifically, Figure 5 and Figure 6 As shown, the first seal 300 is arranged along the circumferential direction of the opening of the first shell 110, and the second seal 700 is arranged along the circumferential direction of the opening of the second shell 120. In a natural state, the first seal 300 at least partially protrudes from the end surface of the first shell 110, and the second seal 700 at least partially protrudes from the end surface of the second shell 120. When the connecting cable 400 is installed at the first notch 1021 and the second shell 120 covers the opening of the first shell 110, the second notch 1022 on the second shell 120 is docked with the first notch 1021. During the covering process, the first seal 300 and the second seal 700 are deformed to avoid each other, so that the second shell 120 can cover the opening of the first shell 110, and the second shell 120 can be sealed with the first shell 110.

[0053] The structure in which the mounting portion 102 is disposed at the openings of the first shell 110 and the second shell 120 makes the processing and molding process of the mounting portion 102 easier.

[0054] Not limited to this, the junction box of this embodiment may also have other structures.

[0055] According to an optional embodiment, the hydrophobic layer 500 is located on the first surface 310 of the first sealing member 300, such as Figure 8 , Fig. 9 and Fig.11 The first surface 310 is the side of the first sealing member 300 that contacts the housing 100. Figure 2 , Figure 4 and Figure 6 As shown. For the junction boxes of the first and third structures, since the first seal 300 is embedded in the sealing groove at the opening of the first shell 110, the sealing performance between the first seal 300 and the bottom of the sealing groove is good, and the hydrophobic layer 500 is arranged on the upper surface of the first seal 300, which can enhance the sealing performance between the first seal 300 and the second shell 120 or the second seal 700 on the second shell 120.

[0056] According to an optional embodiment, a hydrophobic structure 600 is formed on the first surface 310 of the first sealing member 300, and the hydrophobic layer 500 is disposed on the hydrophobic structure 600. Figure 7 to Figure 11 As shown. For the junction boxes of the first and third structures, a hydrophobic layer 500 is provided on the upper surface of the first sealing member 300, and correspondingly, a hydrophobic structure 600 is also provided on the first surface 310. Through the effect of the hydrophobic structure 600, not only the reliability of the connection between the hydrophobic layer 500 and the first sealing member 300 can be enhanced, but also the sealing performance between the first sealing member 300 and the second housing 120 or the second sealing member 700 on the second housing 120 can be further enhanced.

[0057] According to an optional embodiment, the hydrophobic layer 500 is located on the first surface 310 and the second surface 320 of the first sealing member 300. The first surface 310 is a surface of the first sealing member 300 in contact with the housing 100, and the second surface 320 and the first surface 310 are two opposite surfaces of the first sealing member 300. Figure 4 For the second structure of the junction box, the hydrophobic layer 500 is located on the first surface 310 and the second surface 320 of the first sealing member 300 , which can not only enhance the sealing between the first sealing member 300 and the first housing 110 , but also enhance the sealing between the first sealing member 300 and the connecting cable 400 .

[0058] According to an optional embodiment, a hydrophobic structure 600 is formed on both the first surface 310 and the second surface 320 of the first seal 300, and the hydrophobic layer 500 is disposed on the hydrophobic structure 600. For the junction box of the second structure, the hydrophobic layer 500 is disposed on both the first surface 310 and the second surface 320 of the first seal 300, and correspondingly, the hydrophobic structure 600 is also disposed on the first surface 310 and the second surface 320. Through the effect of the hydrophobic structure 600, not only the reliability of the connection between the hydrophobic layer 500 and the first seal 300 can be enhanced, but also the sealing between the first seal 300 and the first housing 110, and between the first seal 300 and the connecting cable 400 can be further enhanced.

[0059] According to an optional embodiment, a hydrophobic layer 500 is provided on the surface of the housing 100 that contacts the first sealing member 300. Exemplarily, the hydrophobic layer 500 may be formed by pasting a hydrophobic film on the surface of the housing 100, or the hydrophobic layer 500 may be a coating formed by coating a hydrophobic coating on the surface of the housing 100.

[0060] A hydrophobic layer 500 is also provided on the surface of the housing 100 in contact with the first sealing member 300 . The sealing between the first sealing member 300 and the housing 100 can be further enhanced through the action of the hydrophobic layer 500 on the first sealing member 300 and the housing 100 .

[0061] According to an optional embodiment, a hydrophobic structure 600 is provided on the surface of the housing 100 that contacts the first sealing member 300, and the hydrophobic layer 500 is provided on the hydrophobic structure 600. When the hydrophobic layer 500 is provided on the housing 100, the housing 100 is also provided with the hydrophobic structure 600 accordingly. Through the effect of the hydrophobic structure 600, not only the reliability of the connection between the hydrophobic layer 500 and the housing 100 can be enhanced, but also the sealing between the first sealing member 300 and the housing 100 can be further enhanced.

[0062] Preferably, the hydrophobic structure 600 includes a protrusion structure and / or a groove structure, and the protrusion structure and / or the groove structure are arranged at intervals. Figure 7 and Fig.10 Schematic diagram showing that the hydrophobic structure 600 is a protruding structure. More preferably, the surface of the protruding structure can be a smooth structure or a rough structure (surface is not smooth), such as Figure 7 and Fig.10 shown.

[0063] In the junction box of the preferred technical solution of this embodiment, the hydrophobic layer 500 is disposed on the hydrophobic structure 600 by coating or pasting, so that the hydrophobic layer 500 and the hydrophobic structure 600 have strong adhesion, thereby enhancing the stability of the hydrophobic layer 500. On the other hand, the hydrophobic structure 600 is disposed on the surface of the housing 100 or the first sealing member 300. When the hydrophobic layer 500 is damaged and the liquid enters the small gap between the first sealing member 300 and the housing 100, the liquid contacts the hydrophobic structure 600 (that is, the convex structure and / or the groove structure) on the first sealing member 300 or the housing 100. Compared with the structure with a smooth surface, the contact angle of the liquid on the surface of the hydrophobic structure 600 is larger, so that the liquid is not easy to spread on the surface of the hydrophobic structure 600, and thus the liquid is not easy to enter the accommodating cavity of the housing 100 through the small gap between the first sealing member 300 and the housing 100, which can further enhance the sealing of the junction box.

[0064] It can be seen that the junction box of the preferred technical solution of this embodiment has a hydrophobic structure 600 on the surface of the shell 100 or the first sealing member 300, and the hydrophobic layer 500 is provided on the hydrophobic structure 600. Its sealing performance can be enhanced not only by the hydrophobic layer 500 but also by the hydrophobic structure 600. It has a double sealing function, which is beneficial to ensure the reliability of the sealing performance of the junction box.

[0065] Preferably, the protrusion height of the protrusion structure and the depression depth of the groove structure are greater than the thickness of the hydrophobic layer 500. Exemplarily, the thickness of the hydrophobic layer 500 is greater than or equal to 0.5 microns, which can keep the hydrophobic layer 500 sufficiently ductile and help prevent the hydrophobic layer 500 from tearing when the first sealing member 300 is deformed. Figure 1 or Figure 2 As shown, a mounting groove 330 is provided on the surface of the first sealing member 300 to reduce the deformation of the surface of the first sealing member 300 , thereby reducing the risk of tearing of the hydrophobic layer 500 .

[0066] like Figure 8 As shown, the hydrophobic layer 500 may be disposed on the entire surface of the hydrophobic structure 600 .

[0067] like Fig. 9 and Fig.11 As shown, the hydrophobic layer 500 may also be only arranged in the groove portion between two adjacent protrusions of the hydrophobic structure 600, and the thickness of the hydrophobic layer 500 is less than the protruding height of the protruding structure, so that after the hydrophobic layer 500 is arranged on the hydrophobic structure 600, the surface of the first sealing member 300 or the shell 100 still maintains an uneven structure (that is, a rough structure); on the other hand, the hydrophobic layer 500 can also prevent the hydrophobic structure 600 from collapsing.

[0068] Not limited thereto, a hydrophobic structure 600 may also be disposed on the surface of the second sealing member 700 , and the hydrophobic layer 500 is disposed on the surface of the hydrophobic structure 600 .

[0069] It should be noted that, in this article, the terms "comprise", "include" or any other variant thereof are intended to cover non-exclusive inclusion, so that the process, method, article or device including a series of elements includes not only those elements, but also includes other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise one..." do not exclude the presence of other identical elements in the process, method, article or device including the element. In addition, it should be pointed out that the scope of the methods and devices in the embodiments of the present application is not limited to performing functions in the order shown or discussed, and may also include performing functions in a substantially simultaneous manner or in reverse order according to the functions involved, for example, the described method may be performed in an order different from that described, and various steps may also be added, omitted, or combined. In addition, the features described with reference to certain examples may be combined in other examples.

[0070] The above description is only a specific implementation of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can easily think of changes or substitutions within the technical scope disclosed by the present invention, which should be included in the protection scope of the present invention.

Claims

1. A junction box, characterized in that: The invention comprises a housing (100), a connection terminal (200) and a first sealing member (300), wherein the connection terminal (200) is connected to a connection cable (400), wherein: A housing cavity (101) is formed inside the shell (100), and the connection terminal (200) is placed in the housing cavity (101). A mounting portion (102) is also provided on the wall surface of the shell (100), and the mounting portion (102) passes through the wall surface of the shell (100) and is in communication with the housing cavity (101). The mounting portion (102) is used to mount the connecting cable (400). A hydrophobic layer (500) is provided on the surface of the first sealing member (300). The first sealing member (300) is arranged at the mounting portion (102) and enables the connecting cable (400) to be sealed and matched with the shell (100).

2. The junction box according to claim 1, characterized in that: The hydrophobic layer (500) is located on the first surface (310) of the first sealing member (300); or the hydrophobic layer (500) is located on the first surface (310) and the second surface (320) of the first sealing member (300), wherein: The first surface (310) is a surface of the first sealing member (300) in contact with the housing (100), and the second surface (320) and the first surface (310) are two opposite surfaces on the first sealing member (300).

3. The junction box according to claim 2, characterized in that: The hydrophobic layer (500) is provided on the surface of the housing (100) that contacts the first sealing member (300).

4. The junction box according to claim 3, characterized in that: A hydrophobic structure (600) is formed on the first surface (310) of the first sealing member (300), and the hydrophobic layer (500) is disposed on the hydrophobic structure (600); or A hydrophobic structure (600) is formed on both the first surface (310) and the second surface (320) of the first sealing member (300), and the hydrophobic layer (500) is disposed on the hydrophobic structure (600); or A hydrophobic structure (600) is provided on the surface of the housing (100) that contacts the first sealing member (300), and the hydrophobic layer (500) is provided on the hydrophobic structure (600).

5. The junction box according to claim 4, characterized in that: The hydrophobic structure (600) comprises a protrusion structure and / or a groove structure, and the protrusion structure and / or the groove structure are arranged at intervals.

6. The junction box according to claim 5, characterized in that: The protruding height of the protruding structure and the recessed depth of the recessed structure are greater than the thickness of the hydrophobic layer (500).

7. The junction box according to claim 6, characterized in that: The thickness of the hydrophobic layer (500) is greater than or equal to 0.5 micrometers.

8. The junction box according to any one of claims 1 to 7, characterized in that: The housing (100) comprises a first housing (110) and a second housing (120), wherein the second housing (120) covers an opening of the first housing (110). The mounting portion (102) is disposed at the opening of the first shell (110), the junction box further comprises a second sealing member (700), and the surface of the second sealing member (700) is provided with the hydrophobic layer (500), the second sealing member (700) is located at the opening of the second shell (120) and enables the first shell (110) and the second shell (120) to be sealed and matched.

9. The junction box according to any one of claims 1 to 7, characterized in that: The housing (100) comprises a first housing (110) and a second housing (120), wherein the second housing (120) covers an opening of the first housing (110). The mounting portion (102) is disposed on the first shell (110), the junction box further comprises a second sealing member (700), and the surface of the second sealing member (700) is provided with the hydrophobic layer (500), the second sealing member (700) is located at the opening of the first shell (110) and enables the first shell (110) to be sealed and matched with the second shell (120).

10. The junction box according to any one of claims 1 to 7, characterized in that: The housing (100) comprises a first housing (110) and a second housing (120), wherein the second housing (120) covers an opening of the first housing (110). The mounting portion (102) is disposed at an opening of the first shell (110) and an opening of the second shell (120); the junction box further comprises a second sealing member (700), and the surface of the second sealing member (700) is provided with the hydrophobic layer (500); the second sealing member (700) is located at the opening of the second shell (120) and enables the first shell (110) and the second shell (120) to be sealed and matched.

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