Waterproof installation structure of photovoltaic module turn-off device

Abstract

The utility model belongs to the technical field of photovoltaic module mounting structures, and particularly relates to a waterproof mounting structure of a photovoltaic module turn-off device, which is characterized in that an upper shell outer wall and an upper shell inner wall as well as a lower shell outer wall and a lower shell inner wall are respectively arranged on an upper shell and a lower shell; the groove of the lower shell outer wall is matched with the protrusion of the upper shell outer wall to form a first waterproof structure, and the upper shell inner wall abuts against the lower shell inner wall to form a second waterproof structure. The shell and the lower shell are further provided with corresponding semicircular notches which are combined to form a wire hole, a cable can be connected with an internal shutoff device main board through the wire hole, meanwhile, a circle of pressing ribs are formed on the inner surfaces of the inner hole and the outer hole, a fastening structure is formed when the upper shell and the lower shell are mutually buckled, effective water prevention is achieved, and meanwhile the cable can be clamped and fixed. And the connection between the cable and the shutoff device mainboard is prevented from being broken by external force. According to the utility model, the structure is simple, the waterproof characteristic is realized through the optimized design of the housing and the direct connection with the cable, the installation volume of the turn-off device is reduced, and the cost is low.

Description

Technical Field

[0001] The utility model belongs to the technical field of photovoltaic component installation structures, and in particular relates to a waterproof installation structure of a photovoltaic component switch. Background Art

[0002] The photovoltaic module circuit breaker is a switch device used to control the current of the photovoltaic system. It can quickly and reliably cut off the power supply when it is necessary to disconnect the circuit or stop the current flow. It can protect the photovoltaic system from power failures such as overload and short circuit, and ensure the safe operation and stability of the photovoltaic system. At the same time, the photovoltaic module circuit breaker also has the advantages of energy saving and environmental protection, and is an indispensable and important component in the photovoltaic system.

[0003] The photovoltaic module disconnector needs to be connected to the cable of the photovoltaic system to achieve the shutdown function. Photovoltaic systems sometimes need to work in harsh environments such as humidity and rain, which can easily cause moisture intrusion and corrosion of cable connectors, thereby affecting the normal use and safety of the cables. In the prior art, some disconnectors are provided with a waterproof casing, and the disconnector and the cable are connected through an SR connector. This method has excellent waterproof performance and is convenient for cable installation and removal. However, the SR connector itself is relatively large, which limits the reduction of the overall volume of the disconnector, and the cost of the SR connector is relatively high. Utility Model Content

[0004] The technical problem to be solved by the utility model is to overcome the defects of the waterproof structure of the photovoltaic module switch in the prior art that the structure is large in size and high in cost, thereby providing a waterproof installation structure of the photovoltaic module switch.

[0005] A waterproof installation structure for a photovoltaic module circuit breaker comprises an upper shell and a lower shell, wherein the upper shell is buckled and fixed with the lower shell to form a plurality of wire holes; a cavity is formed in the middle of the upper shell and the lower shell, and an upper shell inner wall and a lower shell inner wall are formed around the cavity, and relative upper shell outer walls and lower shell outer walls are formed at the edges; a groove is formed on the upper side of the lower shell outer wall, and a protrusion is formed on the lower side of the upper shell outer wall and inserted into the groove; relative semicircular notches are formed on the upper shell inner wall and the lower shell inner wall to form an inner hole, and relative semicircular notches are formed on the upper shell outer wall and the lower shell outer wall to form an outer hole, and a pair of the inner holes and the outer holes form a wire hole; a circle of ribs is formed on the inner surfaces of the inner hole and the outer hole.

[0006] Furthermore, there are six wire holes in total, two of which are located on the left and right sides of the waterproof installation structure respectively, and four are located on the front side.

[0007] Furthermore, two positioning columns are formed on the upper side of the lower shell, and the positioning columns are located in the cavity and are used to position the mainboard of the circuit breaker.

[0008] Furthermore, a positioning seat is formed between the positioning column and the lower shell for supporting a mainboard of the circuit breaker.

[0009] Furthermore, four blocks are formed on the upper side of the lower shell, wherein two of the blocks are respectively located at the left and right edges of the cavity, and two blocks are located at the front edge of the cavity, for clamping the mainboard of the circuit breaker on the lower shell.

[0010] Furthermore, a plurality of buckles are formed on the inner side of the inner wall of the upper shell, and a plurality of bayonet holes are formed on the inner side of the inner wall of the lower shell. The buckles are engaged with the bayonet holes to fix the upper shell and the lower shell.

[0011] Furthermore, there are five buckles, two of which are located on the left and right sides of the cavity respectively, two of which are located on the rear side of the cavity, and one of which is located on the front side of the cavity.

[0012] Furthermore, the upper shell outer wall and the upper shell inner wall are connected to form reinforcing ribs, and the lower shell outer wall and the lower shell inner wall are connected to form reinforcing ribs.

[0013] Furthermore, the middle portion of the upper side of the upper shell is recessed inward to form a mounting pit, and a penetrating mounting hole is formed in the middle of the mounting pit.

[0014] Beneficial effects:

[0015] 1. The utility model discloses a waterproof installation structure of a photovoltaic module circuit breaker, wherein corresponding upper shell outer walls and upper shell inner walls and lower shell outer walls and lower shell inner walls are respectively arranged on the upper shell and the lower shell, the groove of the lower shell outer wall cooperates with the protrusion of the upper shell outer wall to form a first waterproof structure, and the upper shell inner wall and the lower shell inner wall abut against each other to form a second waterproof structure; the shell and the lower shell are also provided with corresponding semicircular notches to form a wire hole, and the cable can be connected to the internal circuit breaker mainboard through the wire hole, and a circle of ribs is formed on the inner surface of the inner hole and the outer hole, and a fastening structure is formed when the upper shell and the lower shell are buckled with each other to achieve effective waterproofing, and at the same time, the cable can be clamped and fixed to prevent external force from breaking the connection between the cable and the circuit breaker mainboard. The utility model has a simple structure, and realizes waterproof characteristics by directly connecting the cable with the optimized design of the shell, reduces the installation volume of the circuit breaker, and has low cost.

[0016] 2. The utility model can position the mainboard of the circuit breaker by setting the positioning column to prevent the mainboard from being misplaced in the horizontal direction; can provide support for the mainboard of the circuit breaker by setting the positioning seat to make the mainboard more stably placed on the lower shell; can stably clamp the mainboard of the circuit breaker on the lower shell by setting the clamping block to prevent the mainboard from loosening.

[0017] 3. The utility model stably fastens and fixes the lower shell and the upper shell through the matching setting of the buckle and the bayonet, and makes disassembly and assembly more convenient; the strength of the inner wall, the outer wall and the wire hole is effectively improved through the setting of the reinforcing ribs; and the logo can be flexibly installed or replaced directly on the outside of the upper shell through the design of the installation pit and the installation card hole. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the embodiments of the present application 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 present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0019] Figure 1 This is a schematic diagram of the overall installation structure of the utility model;

[0020] Figure 2 This is a schematic diagram of the mainboard and cable installation structure of the utility model;

[0021] Figure 3 It is a schematic diagram of the overall structure of the utility model;

[0022] Figure 4 This is a schematic diagram of the overall structure of the utility model from another angle;

[0023] Figure 5 This is a schematic diagram of the upper shell structure of the utility model;

[0024] Figure 6 This is a schematic diagram of the lower shell structure of the utility model;

[0025] Figure 7 It is a schematic diagram of the installation pit structure of the utility model.

[0026] Explanation of the reference numerals in the accompanying drawings: 1. Main board; 2. Cable; 3. Upper shell; 31. Inner wall of upper shell; 311. Buckle; 32. Outer wall of upper shell; 321. Protrusion; 33. Installation pit; 331. Installation hole; 4. Lower shell; 41. Inner wall of lower shell; 411. Bayonet; 42. Outer wall of lower shell; 421. Groove; 43. Positioning column; 431. Positioning seat; 44. Block; 5. Wire hole; 51. Pressed rib; 6. Reinforcing rib. DETAILED DESCRIPTION

[0027] In order to make the above-mentioned purposes, features and advantages of the present application more obvious and easy to understand, the specific implementation methods of the present application are described in detail below in conjunction with the accompanying drawings. In the following description, many specific details are set forth to facilitate a full understanding of the present application. However, the present application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without violating the connotation of the present application, so the present application is not limited by the specific embodiments disclosed below.

[0028] In the description of the present application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0029] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of this application, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0030] In this application, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0031] In the present application, unless otherwise clearly specified and limited, a first feature being “above” or “below” a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being “above”, “above”, and “above” a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being “below”, “below”, and “below” a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0032] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it may be directly on the other element or there may be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. The terms "vertical", "horizontal", "upper", "lower", "left", "right" and similar expressions used herein are for illustrative purposes only and are not intended to be the only implementation method.

[0033] Reference Figure 1 to Figure 7 As shown, this embodiment provides a waterproof installation structure of a photovoltaic module circuit breaker, including an upper shell 3 and a lower shell 4, wherein the upper shell 3 is buckled and fixed with the lower shell 4 to form a plurality of wire holes 5; a cavity is formed in the middle of the upper shell 3 and the lower shell 4, and an upper shell inner wall 31 and a lower shell inner wall 41 are formed around the cavity, and an upper shell outer wall 32 and a lower shell outer wall 42 are formed at the edges thereof; a groove 421 is formed on the upper side of the lower shell outer wall 42, and a protrusion 321 is formed on the lower side of the upper shell outer wall 32 and is inserted into the groove 421; the upper shell inner wall 31 and the lower shell inner wall 41 respectively form opposite semicircular notches to form an inner hole, the upper shell outer wall 32 and the lower shell outer wall 42 respectively form opposite semicircular notches to form an outer hole, and a pair of the inner holes and the outer holes form a wire hole 5; a circle of ribs 51 is formed on the inner surfaces of the inner hole and the outer hole.

[0034] The waterproof installation structure of the photovoltaic module circuit breaker disclosed in this embodiment is provided with corresponding upper shell outer wall 32 and upper shell inner wall 31 and lower shell outer wall 42 and lower shell inner wall 41 on the upper shell 3 and the lower shell 4 respectively, the groove 421 of the lower shell outer wall 42 cooperates with the protrusion 321 of the upper shell outer wall 32 to form a first waterproof structure, and the upper shell inner wall 31 and the lower shell inner wall 41 abut against each other to form a second waterproof structure; the shell and the lower shell 4 are also provided with corresponding semicircular notches to form a wire hole 5, and the cable 2 can be connected to the internal circuit breaker mainboard 1 through the wire hole 5, and a circle of ribs 51 is formed on the inner surface of the inner hole and the outer hole, and a fastening structure is formed when the upper shell 3 and the lower shell 4 are buckled with each other to achieve effective waterproofing, and the cable 2 can be clamped and fixed to prevent external force from breaking the connection between the cable 2 and the circuit breaker mainboard 1. The utility model has a simple structure, and realizes waterproof characteristics by directly connecting the optimized design of the shell with the cable 2, reduces the installation volume of the circuit breaker, and has low cost.

[0035] Specifically, the overall structure of the waterproof mounting structure is rectangular, and two forward extension structures are formed on the front side. A total of six wire holes 5 are provided, two of which are located on the left and right sides of the waterproof mounting structure, and four are located on the front side. In this embodiment, the wire holes 5 located on the left and right sides of the waterproof mounting structure are located at the rear of the housing, and the four wire holes 5 located on the front side are arranged side by side in pairs, respectively located at the left and right extension structure positions.

[0036] Two positioning columns 43 are formed on the upper side of the lower shell 4. The positioning columns 43 are located in the cavity and are used to position the mainboard 1 of the circuit breaker. The mainboard 1 of the circuit breaker can be positioned to prevent the mainboard 1 from being misaligned in the horizontal direction. The mainboard 1 is provided with corresponding through holes. The positioning seat 431 is provided to provide support for the mainboard 1 of the circuit breaker, so that the mainboard 1 can be placed more stably on the lower shell 4. A positioning seat 431 is formed between the positioning columns 43 and the lower shell 4 to support the mainboard 1 of the circuit breaker. The mainboard 1 of the circuit breaker can be stably clamped on the lower shell 4 to prevent the mainboard from loosening. In this embodiment, the positioning seat 431 is cross-shaped and the positioning column 43 is cylindrical.

[0037] Four clamping blocks 44 are formed on the upper side of the lower housing 4, two of which are located at the left and right edges of the cavity, and two of which are located at the front edge of the cavity, for clamping the mainboard 1 of the circuit breaker on the lower housing 4. The clamping blocks 44 are fixed to the lower housing 4, and are narrow at the top and wide at the bottom, forming an inclined surface facing the inside of the cavity, so that the mainboard 1 can be pressed downward under the clamping blocks 44.

[0038] A plurality of buckles 311 are formed on the inner side of the upper shell inner wall 31, and a plurality of bayonet holes 411 are formed on the inner side of the lower shell inner wall 41. The buckles 311 are engaged with the bayonet holes 411 to fix the upper shell 3 and the lower shell 4. Five buckles 311 are provided, two of which are located on the left and right sides of the cavity, two of which are located on the rear side of the cavity, and one of which is located on the front side of the cavity. The buckles are formed in the recess of the upper shell inner wall 31, and are wide at the top and narrow at the bottom, so that they can be directly pressed into the bayonet holes 411. Through the coordinated arrangement of the buckles 311 and the bayonet holes 411, the lower shell 4 and the upper shell 3 are stably engaged and fixed, and disassembly and assembly are more convenient.

[0039] The upper shell outer wall 32 and the upper shell inner wall 31 are connected to form reinforcing ribs 6 , and the lower shell outer wall 42 and the lower shell inner wall are connected to form reinforcing ribs 6 , which effectively improve the strength of the inner and outer walls and the wire holes 5 .

[0040] The middle part of the upper side of the upper shell 3 is recessed inward to form a mounting pit 33, and a penetrating mounting card hole 331 is formed in the middle of the mounting pit 33, so that logos, such as trademarks or circuit breaker numbers, can be flexibly installed or replaced directly on the outer side of the upper shell 3.

[0041] As a further improvement of this embodiment, two screw holes are further formed on the upper side of the upper shell 3 , and the screw holes do not penetrate the upper shell 3 , and are used to fix the hardware buckles by screws.

[0042] As a further improvement of this embodiment, the upper shell 3 also forms four penetrating exhaust holes, which are circular through-hole structures that are wide inside and narrow outside. They can discharge the internal air when the circuit breaker is filled with glue, ensuring that the thermal conductive glue can fill the entire space between the upper shell 3 and the lower shell 4.

[0043] The technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0044] The above-described embodiments only express several implementation methods of the present application, and the descriptions thereof are relatively specific and detailed, but they cannot be construed as limiting the scope of the patent application. It should be pointed out that, for a person of ordinary skill in the art, several variations and improvements can be made without departing from the concept of the present application, and these all belong to the protection scope of the present application. Therefore, the protection scope of the patent application shall be subject to the attached claims.

Claims

1. A waterproof installation structure of a photovoltaic module circuit breaker, comprising an upper shell (3) and a lower shell (4), characterized in that: The upper shell (3) and the lower shell (4) are buckled and fixed to form a plurality of wire holes (5); a cavity is formed in the middle of the upper shell (3) and the lower shell (4), and an upper shell inner wall (31) and a lower shell inner wall (41) are formed around the cavity, and an upper shell outer wall (32) and a lower shell outer wall (42) are formed on the edges thereof; a groove (421) is formed on the upper side of the lower shell outer wall (42), and the upper shell outer wall (32) is provided with a groove (421). ) is formed on the lower side and inserted into the groove (421); the upper shell inner wall (31) and the lower shell inner wall (41) respectively form opposite semicircular notches and constitute an inner hole, the upper shell outer wall (32) and the lower shell outer wall (42) respectively form opposite semicircular notches and constitute an outer hole, and a pair of the inner holes and the outer holes form a linear hole (5); a circle of compression ribs (51) are formed on the inner surfaces of the inner hole and the outer hole.

2. A waterproof installation structure for a photovoltaic module circuit breaker according to claim 1, characterized in that: There are six wire holes (5) in total, two of which are located on the left and right sides of the waterproof installation structure respectively, and four are located on the front side.

3. The waterproof installation structure of a photovoltaic module circuit breaker according to claim 1, characterized in that: Two positioning columns (43) are formed on the upper side of the lower shell (4); the positioning columns (43) are located in the cavity and are used to position the mainboard (1) of the circuit breaker.

4. A waterproof installation structure for a photovoltaic module circuit breaker according to claim 3, characterized in that: A positioning seat (431) is formed between the positioning column (43) and the lower housing (4) and is used to support the mainboard (1) of the circuit breaker.

5. The waterproof installation structure of a photovoltaic module circuit breaker according to claim 1, characterized in that: Four clamping blocks (44) are formed on the upper side of the lower shell (4), wherein two of the clamping blocks (44) are respectively located at the left edge and the right edge of the cavity, and two of the clamping blocks (44) are located at the front edge of the cavity, and are used to clamp the mainboard (1) of the circuit breaker on the lower shell (4).

6. A waterproof installation structure for a photovoltaic module circuit breaker according to claim 1, characterized in that: A plurality of buckles (311) are formed on the inner side of the upper shell inner wall (31), and a plurality of bayonet holes (411) are formed on the inner side of the lower shell inner wall (41); the buckles (311) are engaged with the bayonet holes (411) to fix the upper shell (3) and the lower shell (4).

7. A waterproof installation structure for a photovoltaic module circuit breaker according to claim 6, characterized in that: Five buckles (311) are provided, wherein two buckles (311) are respectively located on the left and right sides of the cavity, two buckles (311) are located on the rear side of the cavity, and one buckle (311) is located on the front side of the cavity.

8. The waterproof installation structure of a photovoltaic module circuit breaker according to claim 1, characterized in that: The upper shell outer wall (32) and the upper shell inner wall (31) are connected to form a reinforcing rib (6), and the lower shell outer wall (42) and the lower shell inner wall (41) are connected to form a reinforcing rib (6).

9. The waterproof installation structure of a photovoltaic module circuit breaker according to claim 1, characterized in that: The middle portion of the upper side of the upper shell (3) is recessed inwards to form a mounting recess (33), and a penetrating mounting card hole (331) is formed in the middle portion of the mounting recess (33).

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