Copper bar protection cover of photovoltaic inverter and photovoltaic inverter

Abstract

The utility model is applicable to the technical field of photovoltaic power generation, and provides a copper bar protective cover of a photovoltaic inverter and the photovoltaic inverter, the copper bar protective cover of the photovoltaic inverter comprises a shell and a fastener, one end of the shell is provided with a cavity with an opening, one end of the shell is provided with a mounting port communicated with the cavity, the fastener is arranged on a first side wall, and the fastener is arranged on a second side wall. The fastener is arranged on one side of the opening, comprises a side plate extending in the direction away from the opening, and a limiting part arranged at one end, away from the shell, of the side plate, and is used for being buckled with one end, away from the cavity, of the copper bar. The copper bar protection cover of the photovoltaic inverter is provided with the mounting port and the cavity, the side plate of the fastener laterally supports the copper bar, and the limiting part is buckled on one side, far away from the cavity, of the copper bar to limit the displacement of the copper bar in the length direction of the shell, so that the copper bar protection cover of the photovoltaic inverter only needs to be arranged at one end of the copper bar in a sleeving manner, and the copper bar can be fixed. Therefore, the installation of the copper bar protection cover of the photovoltaic inverter on the copper bar can be completed, and the installation efficiency of the copper bar protection cover of the photovoltaic inverter is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of photovoltaic power generation, and particularly relates to a copper bar protection cover for a photovoltaic inverter and a photovoltaic inverter. Background Art

[0002] During the operation of an inverter, it may be subject to various short-circuit current interferences, seriously threatening the safe operation of the inverter. There are many reasons for the inverter to suffer from a near-area short circuit, and foreign objects or small animals interfering with the copper bar are one of the important reasons for the near-area short circuit. Therefore, it is necessary to insulate and protect the copper bar of the inverter. In the existing technology, generally, a heat-shrinkable tube is sleeved on the copper bar, and the heat-shrinkable tube is used as the surface protection of the copper bar to achieve a certain insulation level; or epoxy powder is used to powder the copper bar locally, and then it is baked and cured at a high temperature to achieve the protection and insulation between the copper bar and the box body; there is also a method of directly covering a metal protection cover outside the copper bar to protect the exposed copper bar inside the metal protection cover to avoid the copper bar touching foreign objects outside, so as to achieve the insulation effect.

[0003] However, since the heat-shrinkable tube is not resistant to high temperatures, it will soften when the external temperature exceeds 110 degrees Celsius, shortening the service life of the heat-shrinkable tube and seriously reducing the protection effect of the heat-shrinkable tube. When using epoxy powder for protection, due to the complex manufacturing process, the cost is greatly increased, which is not conducive to popularization. When using a metal protection cover, due to the complex structure of the metal protection cover, the installation difficulty on the copper bar is increased, the installation efficiency is low, and it is difficult to maintain. Summary of the Utility Model

[0004] An embodiment of the utility model provides a copper bar protection cover for a photovoltaic inverter, aiming to improve the installation efficiency of the copper bar protection cover of the photovoltaic inverter and reduce the production cost of the copper bar protection cover of the photovoltaic inverter.

[0005] An embodiment of the utility model is implemented as follows. A copper bar protection cover for a photovoltaic inverter is applied to protect a copper bar. The copper bar protection cover for the photovoltaic inverter is characterized in that it includes:

[0006] A housing. In the length direction of the housing, one end of the housing is provided with a cavity having an opening. In the height direction of the housing, one end of the housing is provided with an installation port communicating with the cavity for the copper bar to be installed in the cavity through the installation port. In the width direction of the housing, the housing includes two first side walls arranged opposite to each other.

[0007] The buckle is provided on the first side wall. In the length direction of the housing, the buckle is provided on one side of the opening. The buckle includes a side plate extending in a direction away from the opening, and a limiting portion provided at one end of the side plate away from the housing. The limiting portion extends in the width direction of the housing for buckling with one end of the copper bar away from the cavity.

[0008] Further, in the width direction of the housing, at least one such buckle is provided on both sides of the opening.

[0009] Further, the materials of the housing and the buckle are both configured as one or more of PA66, PA46, PA6T, PA4T, PET, and PEI.

[0010] Further, in the width direction of the housing, the housing includes ribs provided on the inner walls of the opposite sides of the cavity. The ribs extend in the height direction of the housing for abutting against the side surface of the copper bar.

[0011] Further, in the length direction of the housing, a plurality of such ribs are provided on the inner walls of the opposite sides of the cavity.

[0012] Further, in the height direction of the housing, the housing includes a second side wall opposite to the installation opening. The second side wall is provided with ventilation holes communicating with the cavity.

[0013] Further, the second side wall is provided with a plurality of ventilation holes communicating with the cavity.

[0014] Further, a slot communicating with the cavity is provided at one end of the second side wall close to the opening. The slot is used to expose one end of the copper bar close to the second side wall. In the length direction of the housing, the sizes of the two opposite first side walls are smaller than the size of the copper bar for exposing one side of the copper bar away from the cavity.

[0015] Further, in the length direction of the housing, the housing includes a third side wall opposite to the opening. The third side wall is used to abut against the copper bar.

[0016] The embodiment of the present invention further provides a photovoltaic inverter, including: a machine body, a circuit breaker, and a copper bar. The copper bar is respectively connected to the machine body and the circuit breaker to connect the circuit breaker and the machine body;

[0017] And the copper bar protection cover of the aforementioned photovoltaic inverter. The copper bar protection cover of the photovoltaic inverter is sleeved on the copper bar to protect the copper bar.

[0018] In the copper bar protection cover of the photovoltaic inverter provided by the present utility model, since the copper bar protection cover of the photovoltaic inverter is provided with an installation opening and a cavity, the copper bar protection cover of the photovoltaic inverter can be sleeved on the copper bar. The side plate of the buckle member laterally supports the copper bar, and the limiting portion is buckled on the side of the copper bar away from the cavity, restricting the displacement of the copper bar in the length direction of the housing, making it difficult for the copper bar protection cover of the photovoltaic inverter to slide relative to the copper bar. Therefore, only by sleeving the copper bar protection cover of the photovoltaic inverter on one end of the copper bar can the installation of the copper bar protection cover of the photovoltaic inverter on the copper bar be completed, making the installation of the copper bar protection cover of the photovoltaic inverter convenient and fast, and improving the installation efficiency of the copper bar protection cover of the photovoltaic inverter. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 is a schematic structural view of the copper bar protection cover of the photovoltaic inverter provided by an embodiment of the present utility model;

[0020] Figure 2 is a top view of the copper bar protection cover of the photovoltaic inverter provided by an embodiment of the present utility model;

[0021] Figure 3 is a side view of the copper bar protection cover of the photovoltaic inverter provided by an embodiment of the present utility model;

[0022] Figure 4 is a schematic structural view of the copper bar protection cover of the photovoltaic inverter provided by an embodiment of the present utility model sleeved on the copper bar;

[0023] Figure 5 is a schematic structural view of the photovoltaic inverter provided by an embodiment of the present utility model.

[0024] DESCRIPTION OF THE REFERENCE NUMERALS: 100, housing; 110, first side wall; 120, second side wall; 121, ventilation hole; 122, slotted opening; 130, third side wall; 140, cavity; 141, opening; 150, installation opening; 160, rib; 200, buckle member; 210, side plate; 220, limiting portion; 300, photovoltaic inverter; 310, body; 320, circuit breaker; 330, copper bar. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0025] In order to make the objectives, technical solutions and advantages of the present utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present utility model and are not used to limit the present utility model.

[0026] In the description of the present utility model, it should be understood that the orientation or positional relationship indicated in the description of the orientation and positional relationship is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation to the present utility model.

[0027] In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more of the said features. In the description of the present utility model, the meaning of "a plurality" is two or more, unless otherwise specifically defined.

[0028] The following disclosure provides many different embodiments or examples for implementing different structures of the present utility model. To simplify the disclosure of the present utility model, the components and settings of specific examples are described below. Of course, they are only examples and are not intended to limit the present utility model. In addition, the present utility model may repeat reference numerals and / or reference letters in different examples. Such repetition is for the purpose of simplification and clarity and does not itself indicate the relationship between the various embodiments and / or settings discussed. In addition, the present utility model provides examples of various specific processes and materials, but those of ordinary skill in the art can be aware of the application of other processes and / or the use of other materials.

[0029] In the existing technology, generally, a heat shrinkable tube is sleeved on the copper bar, and the heat shrinkable tube is used as the surface protection of the copper bar to achieve a certain insulation level; or epoxy powder is used to powder the copper bar locally and then baked at a high temperature to cure it, so as to achieve the protection and insulation between the copper bar and the box body; there is also a case where a metal protective cover is directly covered outside the copper bar to protect the exposed copper bar in the metal protective cover to prevent the copper bar from touching foreign objects outside, so as to achieve the insulation effect. However, since the heat shrinkable tube is not resistant to high temperatures, it will soften when the external temperature exceeds 110 degrees Celsius, shortening the service life of the heat shrinkable tube and seriously reducing the protection effect of the heat shrinkable tube. When using epoxy powder for protection, due to the complex manufacturing process, the cost is greatly increased, which is not conducive to popularization. When using a metal protective cover, due to the complex structure of the metal protective cover, the installation difficulty on the copper bar is increased, the installation efficiency is low, and it is difficult to maintain. Therefore, this application proposes a copper bar protective cover for a photovoltaic inverter, aiming to improve the installation efficiency of the copper bar protective cover of the photovoltaic inverter and reduce the production cost of the copper bar protective cover of the photovoltaic inverter.

[0030] Please refer to Figures 1 to 4, a copper bar protection cover of a photovoltaic inverter proposed in this application is applied to protect the copper bar 330. The copper bar protection cover of the photovoltaic inverter includes a housing 100 and a buckle 200. In the length direction of the housing 100, one end of the housing 100 is provided with a cavity 140 having an opening 141. In the height direction of the housing 100, one end of the housing 100 is provided with an installation opening 150 communicating with the cavity 140 for the copper bar 330 to be installed in the cavity 140 through the installation opening 150. In the width direction of the housing 100, the housing 100 includes two first side walls 110 arranged opposite to each other, and the buckle 200 is arranged on the first side wall 110. In the length direction of the housing 100, the buckle 200 is arranged on one side of the opening 141. The buckle 200 includes a side plate 210 extending in a direction away from the opening 141 and a limiting portion 220 arranged at one end of the side plate 210 away from the housing 100. The limiting portion 220 extends in the width direction of the housing 100 for buckling with one end of the copper bar 330 away from the cavity 140.

[0031] In this way, the copper bar protection cover of the photovoltaic inverter is provided with an installation opening 150 and a cavity 140, so that the copper bar protection cover of the photovoltaic inverter can be sleeved on the copper bar 330 through the installation opening 150. The side plate 210 of the buckle 200 provides lateral support and protection for the copper bar 330. By setting the limiting portion 220 and buckling the limiting portion 220 on one side of the copper bar 330 away from the cavity 140, the displacement of the copper bar 330 in the length direction of the housing 100 is restricted, so that the copper bar protection cover of the photovoltaic inverter and the copper bar 330 are not prone to relative sliding, realizing the fixation of the copper bar protection cover of the photovoltaic inverter to the copper bar 330 and the installation of the copper bar protection cover of the photovoltaic inverter on the copper bar 330. Therefore, only by sleeving the copper bar protection cover of the photovoltaic inverter on the copper bar 330, the installation of the copper bar protection cover of the photovoltaic inverter on the copper bar 330 can be completed, which is more convenient than the method of installing and fixing the copper bar protection cover by using screws or welding, facilitating the user to install the copper bar protection cover of the photovoltaic inverter and improving the installation efficiency of the copper bar protection cover of the photovoltaic inverter. Moreover, the copper bar protection cover of the photovoltaic inverter has a simple structure, is easy to repair, has a low cost, and is easy to promote.

[0032] Optionally, in one embodiment, at least one buckle 200 is arranged on both sides of the opening 141 in the width direction of the housing 100.

[0033] In this way, in the width direction of the housing 100, the buckles 200 are arranged on both sides of the opening 141 to fix both sides of the copper bar 330 in the width direction of the housing 100, making the installation of the copper bar protection cover of the photovoltaic inverter on the copper bar 330 more stable, preventing the copper bar protection cover of the photovoltaic inverter from shaking in the width direction, and improving the installation stability of the copper bar protection cover of the photovoltaic inverter.

[0034] Optionally, in another embodiment, there can be multiple settings for the number of the fasteners 200. Multiple fasteners 200 can also be provided on two relatively arranged first side walls 110 to enhance the stability of the installation of the copper busbar protection cover of the photovoltaic inverter on the copper busbar 330, as long as the installation of the copper busbar protection cover of the photovoltaic inverter on the copper busbar 330 can be achieved.

[0035] Optionally, in one embodiment, the materials of the housing 100 and the fasteners 200 are both configured as one or more of PA66, PA46, PA6T, PA4T, PET, and PEI.

[0036] In this way, by configuring the materials of the housing 100 and the fasteners 200 as one or more of PA66, PA46, PA6T, PA4T, PET, and PEI, since materials such as PA66, PA46, PA6T, PA4T, PET, and PEI have good insulation, good high-temperature resistance, and relatively low material costs, therefore, the copper busbar protection cover of the photovoltaic inverter can effectively protect the copper busbar 330 from interference by external short-circuit currents or debris, can also operate stably in a relatively high-temperature environment, and has a relatively low production cost.

[0037] Optionally, in one embodiment, in the width direction of the housing 100, the housing 100 includes ribs 160 provided on the inner walls of the opposite sides of the cavity 140. The ribs 160 extend along the height direction of the housing 100 and are used to abut against the side surface of the copper busbar 330.

[0038] In this way, ribs 160 are provided on the inner wall of the cavity 140 to increase the friction between the copper busbar 330 and the inner wall of the cavity 140, so that the copper busbar protection cover of the photovoltaic inverter is not easily relatively slid with respect to the copper busbar 330, making the connection between the copper busbar protection cover of the photovoltaic inverter and the copper busbar 330 more stable and enhancing the protection stability of the copper busbar protection cover of the photovoltaic inverter.

[0039] Optionally, in one embodiment, in the length direction of the housing 100, multiple ribs 160 are provided on the inner walls of the opposite sides of the cavity 140.

[0040] In this way, multiple ribs 160 are provided on the opposite sides of the cavity 140, further increasing the friction between the inner wall of the cavity 140 and the copper busbar 330, making the installation of the copper busbar protection cover of the photovoltaic inverter on the copper busbar 330 more stable and effectively improving the connection stability between the copper busbar protection cover of the photovoltaic inverter and the copper busbar 330.

[0041] Optionally, in another embodiment, the ribs 160 can be arranged in various ways. It is also possible to arrange only one rib 160 on each of the opposite sides of the cavity 140, reducing the number of ribs to reduce the development cost of the mold for the ribs 160, as long as the friction between the copper bar 330 and the cavity 140 can be increased.

[0042] Optionally, in one embodiment, in the height direction of the housing 100, the housing 100 includes a second side wall 120 opposite to the mounting opening 150, and the second side wall 120 is provided with a ventilation hole 121 communicating with the cavity 140.

[0043] In this way, in the height direction of the housing 100, the ventilation hole 121 is provided on the second side wall 120, so that the heat generated by the copper bar 330 in the cavity 140 can flow out of the cavity 140 through the ventilation hole 121, realizing the heat dissipation of the copper bar 330 by the copper bar protection cover of the photovoltaic inverter, making it difficult for the copper bar 330 to be damaged due to heat accumulation in the cavity 140, and improving the operating stability of the copper bar 330.

[0044] Optionally, in one embodiment, the second side wall 120 is provided with a plurality of ventilation holes 121 communicating with the cavity 140.

[0045] In this way, by providing a plurality of ventilation holes 121, the heat exchange area between the copper bar 330 in the cavity 140 and the air outside the cavity 140 is increased, effectively improving the heat dissipation effect of the copper bar protection cover of the photovoltaic inverter on the copper bar 330.

[0046] Optionally, in one embodiment, a slot 122 communicating with the cavity 140 is provided at one end of the second side wall 120 close to the opening 141. The slot 122 is used to expose one end of the copper bar 330 close to the second side wall 120. In the length direction of the housing 100, the sizes of the two first side walls 110 arranged oppositely are smaller than the size of the copper bar 330, so as to expose the side of the copper bar 330 away from the cavity 140.

[0047] In this way, a slot 122 communicating with the cavity 140 is provided on the second side wall 120, and the size of the first side wall 110 in the length direction of the housing 100 is smaller than the size of the copper bar 330, so as to expose the side of the copper bar 330 away from the cavity 140 in the length direction of the housing 100, increasing the contact area between the copper bar 330 and the air, enhancing the heat dissipation effect on the copper bar 330, and making it difficult for the heat of the copper bar 330 to be damaged due to poor heat dissipation, resulting in high temperatures of the copper bar 330 and the copper bar protection cover of the photovoltaic inverter.

[0048] Optionally, in one embodiment, in the length direction of the housing 100, the housing 100 includes a third side wall 130 opposite to the opening 141, and the third side wall 130 is used to abut against the copper bar 330.

[0049] Thus, the third side wall 130 serves as the bottom wall of the cavity 140. The third side wall 130 abuts against the copper busbar 330 to separate the copper busbar 330 from other devices, preventing the copper busbar 330 from being short-circuited and damaged due to contact with other devices, and reducing the possibility of electrical interference between the copper busbar 330 and other devices.

[0050] Please refer to Figures 4 to 5 , an embodiment of the present invention further provides a photovoltaic inverter 300, including a body 310, a circuit breaker 320, a copper busbar 330, and the copper busbar protection cover of the foregoing photovoltaic inverter. The copper busbar 330 is respectively connected to the body 310 and the circuit breaker 320 to connect the circuit breaker 320 and the body 310. The copper busbar protection cover of the photovoltaic inverter is sleeved on the copper busbar 330 to protect the copper busbar 330. The specific structure of the copper busbar protection cover of the photovoltaic inverter refers to the above embodiment. Since the present photovoltaic inverter 300 adopts all the technical solutions of the above embodiments, it has at least all the beneficial effects brought by the technical solutions of the above embodiments, which will not be elaborated herein one by one.

[0051] It can be understood that those skilled in the art can, under the guidance of the above embodiments, combine various implementation manners in the above embodiments to obtain technical solutions of various implementation manners.

[0052] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, and improvements made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A copper busbar protection cover for a photovoltaic inverter, used to protect the copper busbar, characterized in that: The copper busbar protection cover of the photovoltaic inverter comprises: A shell, wherein in the length direction of the shell, one end of the shell is provided with a cavity having an opening, in the height direction of the shell, one end of the shell is provided with a mounting opening connected to the cavity, so that the copper busbar is mounted in the cavity through the mounting opening, and in the width direction of the shell, the shell includes two first side walls arranged opposite to each other; A snap fastener is provided on the first side wall. In the length direction of the shell, the snap fastener is provided on one side of the opening. The snap fastener includes a side plate extending in a direction away from the opening, and a limiting portion provided at one end of the side plate away from the shell. The limiting portion extends in the width direction of the shell to be fastened with the end of the copper busbar away from the cavity.

2. The copper busbar protection cover of the photovoltaic inverter according to claim 1, characterized in that: At least one buckle is disposed on both sides of the opening in the width direction of the shell.

3. The copper busbar protection cover of the photovoltaic inverter according to claim 1, characterized in that: The materials of the shell and the buckle are configured to be one or more of PA66, PA46, PA6T, PA4T, PET, and PEI.

4. The copper busbar protection cover of the photovoltaic inverter according to claim 1, characterized in that: In the width direction of the shell, the shell includes ribs arranged on the inner walls of the two opposite sides of the cavity, the ribs extend along the height direction of the shell, and the ribs are used to abut against the side surfaces of the copper busbar.

5. The copper busbar protection cover of the photovoltaic inverter according to claim 4, characterized in that: In the length direction of the shell, inner walls on two opposite sides of the cavity are provided with a plurality of ribs.

6. The copper busbar protection cover of the photovoltaic inverter according to claim 1, characterized in that: In the height direction of the shell, the shell includes a second side wall arranged opposite to the installation opening, and the second side wall is provided with a ventilation hole connected to the cavity.

7. The copper busbar protection cover of the photovoltaic inverter according to claim 6, characterized in that: The second side wall is provided with a plurality of ventilation holes communicated with the cavity.

8. The copper busbar protection cover of the photovoltaic inverter according to claim 6, characterized in that: The second side wall is provided with a groove connected to the cavity near one end of the opening, and the groove is used to expose the copper bar near one end of the second side wall. In the length direction of the shell, the size of the two first side walls arranged opposite to each other is smaller than the size of the copper bar, so as to expose the side of the copper bar away from the cavity.

9. The copper busbar protection cover of the photovoltaic inverter according to claim 1, characterized in that: In the length direction of the shell, the shell includes a third side wall arranged opposite to the opening, and the third side wall is used to abut against the copper busbar.

10. A photovoltaic inverter, characterized in that: include: Body; breaker; A copper busbar is connected to the machine body and the circuit breaker respectively, so as to connect the circuit breaker and the machine body; The copper bar protection cover of the photovoltaic inverter according to any one of claims 1 to 9, wherein the copper bar protection cover of the photovoltaic inverter is sleeved on the copper bar to protect the copper bar.

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