Electrical equipment

Abstract

The utility model discloses electrical equipment. The electrical equipment comprises a mounting base; the box cover is connected to the upper portion of the mounting base, and a mounting space is defined by the box cover and the mounting base; and the grounding pressing sheet is connected with the box cover, and paint breaking teeth which are in abutting contact with the mounting base are formed on the grounding pressing sheet. According to the electrical equipment provided by the utility model, the grounding pressing sheet is arranged, and the grounding pressing sheet is provided with the paint breaking teeth which are pressed and contacted with the mounting base, so that the two ends of the grounding pressing sheet can be reliably contacted with the mounting base and the grounding pressing sheet respectively, and the paint surface on the surface of the mounting base is broken, thereby realizing reliable and effective grounding of the electrical equipment; and the device is simple, reliable and high in practicability.

Description

Technical Field

[0001] The utility model relates to the technical field of inverters, in particular to an electrical appliance. Background Art

[0002] The existing grounding method between the box cover and the mounting base of the photovoltaic inverter is to weld studs or open grounding holes on the box cover and the mounting base, and then connect the two ends through the grounding wire. This solution needs to consider the operation space, wiring path and wiring space of the wiring. The wiring at both ends also needs to consider the tightening torque of the bolts and nuts. The wiring process may have defects such as unreliable crimping of the crimping terminals at both ends of the cable, inconvenient wiring, excessive bending of the cable, too small torque of the wiring bolts or nuts at both ends, and easy loosening, which ultimately leads to poor system grounding and equipment failure. There is still room for improvement. Utility Model Content

[0003] The utility model aims to solve at least one of the technical problems existing in the prior art. To this end, the utility model provides an electrical device, which can achieve reliable and effective grounding without using a grounding wire, is simple, reliable and highly practical.

[0004] According to the electrical equipment of the embodiment of the utility model, it includes: a mounting base; a box cover, which is connected to the top of the mounting base and defines a mounting space with the mounting base; a grounding pressure plate, which is connected to the box cover and formed with paint-breaking teeth that are in pressing contact with the mounting base.

[0005] According to the electrical equipment of the embodiment of the utility model, a grounding pressure plate is provided, and the grounding pressure plate is formed with paint-breaking teeth that are pressed and contacted with the mounting base, so that the two ends of the grounding pressure plate can respectively reliably contact the mounting base and the grounding pressure plate, and the paint surface on the surface of the mounting base can be broken, thereby realizing reliable and effective grounding of the electrical equipment, that is, there is no need to use a grounding wire for grounding, which is simple, reliable and highly practical.

[0006] According to some embodiments of the electrical equipment of the present invention, the grounding pressure plate includes a connecting portion and a pressing portion, the connecting portion is used to be fitted and connected to the box cover, and the pressing portion is formed with the paint-breaking teeth at one end away from the connecting portion.

[0007] According to some embodiments of the electrical equipment of the present invention, the connecting portion is configured to be detachably connected to the box cover.

[0008] According to some embodiments of the electrical equipment of the present invention, the connecting portion is provided with a first connecting hole, the box cover is provided with a second connecting hole arranged opposite to the first connecting hole, and the first connecting hole and the second connecting hole are used for passing a connecting piece.

[0009] According to some embodiments of the present invention, the electrical equipment includes a plurality of the first connection holes and a plurality of the second connection holes, and the plurality of the first connection holes and the plurality of the second connection holes are distributed in one-to-one correspondence; wherein the plurality of the first connection holes are spaced apart along a direction parallel to the mounting base.

[0010] According to some embodiments of the electrical equipment of the present invention, the grounding pressure plate further includes a middle portion, the connecting portion and the pressing portion are respectively bent and connected to two sides of the middle portion, and the connecting portion and the pressing portion are distributed in parallel and spaced apart.

[0011] According to the electrical equipment of some embodiments of the present invention, an arc-shaped transition section is provided at the connection between the connecting portion and the middle portion and / or at the connection between the middle portion and the pressing portion.

[0012] According to some embodiments of the electrical equipment of the present invention, there are multiple paint-breaking teeth, and the multiple paint-breaking teeth are distributed at intervals.

[0013] According to some embodiments of the electrical equipment of the present invention, the grounding pressure plate is located in the installation space, the grounding pressure plate is in contact with the side of the box cover facing the installation space, and the paint-breaking teeth are pressed against the top surface of the installation base.

[0014] According to some embodiments of the present invention, the electrical equipment is configured as an inverter.

[0015] Additional aspects and advantages of the present invention will be given in part in the following description, and in part will become apparent from the following description, or will be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The above and / or additional aspects and advantages of the present invention will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0017] Figure 1 It is a structural schematic diagram of an electrical device according to an embodiment of the utility model.

[0018] Reference numerals:

[0019] Electrical equipment 100,

[0020] Install the base 1 , the box cover 2 , the grounding pressing piece 3 , the connecting portion 31 , the pressing portion 32 , the paint-breaking teeth 321 , the middle portion 33 , the arc-shaped transition section 34 , and the connecting piece 4 . DETAILED DESCRIPTION

[0021] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0022] In the description of the present utility model, it is necessary to understand 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 positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are 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, and therefore cannot be understood as a limitation on the present utility model. In addition, features defined as "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the present utility model, unless otherwise specified, "multiple" means two or more.

[0023] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" 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 it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0024] Reference below Figure 1 The electrical device 100 according to the embodiment of the utility model is described. The electrical device 100 can achieve reliable and effective grounding without using a grounding wire, and is simple, reliable and highly practical.

[0025] like Figure 1 As shown, an electrical device 100 according to an embodiment of the present utility model includes: a mounting base 1, a box cover 2 and a grounding pressing plate 3.

[0026] The mounting base 1 is used to support and fix the electrical device 100. When the electrical device 100 is fixedly installed, the mounting base 1 can be relatively fixed to the position to be installed to ensure the installation reliability of the electrical device 100. The position to be installed can be a position relatively fixed to the ground.

[0027] The box cover 2 is used to cover and protect the internal components, effectively preventing rainwater, dust and other debris from entering the interior, thereby protecting the electronic components from the influence of moisture, dust and other external impurities, and extending the service life of the electrical device 100. The box cover 2 is connected to the top of the mounting base 1, which can protect the mounting base 1 and the internal structural components, and the box cover 2 and the mounting base 1 define an installation space, and the grounding pressure plate 3 can be installed in the installation space.

[0028] Furthermore, the grounding pressing piece 3 is used to perform grounding treatment on the electrical device 100, thereby ensuring the safety and reliability of the electrical device 100 and avoiding potential safety hazards. The grounding pressing piece 3 is connected to the box cover 2, and the grounding pressing piece 3 is formed with a paint-breaking tooth 321 that is pressed and contacted with the mounting base 1, that is, one end of the grounding pressing piece 3 is connected to the box cover 2, and the other end is connected to the mounting base 1 to achieve the grounding effect. In addition, the surface of the mounting base 1 is painted, and the paint surface will cause the grounding current to be unable to flow normally, thereby causing grounding failure. The end of the grounding pressing piece 3 connected to the mounting base 1 is pressed and contacted by the paint-breaking tooth 321, so that the two are connected, and the top tooth shape of the paint-breaking tooth 321 is sharp, which can break the paint surface on the mounting base 1, eliminate the paint surface, and make the grounding pressing piece 3 directly contact with the box cover 2 and the mounting base 1 respectively, thereby facilitating the flow of the grounding current and achieving reliable grounding.

[0029] Therefore, the box cover 2 can be connected to the mounting base 1 through the grounding pressure plate 3, and the paint on the surface of the box cover 2 can be broken to achieve effective and reliable grounding, which solves the problem that in traditional grounding devices, the grounding wire is used for wiring, the wiring is difficult, the wiring operation space, wiring path and wiring space need to be considered, and the grounding wire connection is unreliable and easy to loosen, resulting in poor grounding.

[0030] According to the electrical device 100 of the embodiment of the utility model, by providing a grounding pressure plate 3, and the grounding pressure plate 3 is formed with paint breaking teeth 321 that are pressed and contacted with the mounting base 1, the paint surface on the surface of the mounting base 1 can be broken, so that the two ends of the grounding pressure plate 3 can be reliably contacted with the mounting base 1 and the grounding pressure plate 3 respectively, thereby realizing reliable and effective grounding of the electrical device 100, without the need to use a grounding wire for grounding, which is simple, reliable and highly practical.

[0031] In some embodiments, the grounding pressure plate 3 includes a connecting portion 31 and a pressing portion 32 . The connecting portion 31 is used to be closely connected to the box cover 2 , and the pressing portion 32 is formed with paint-breaking teeth 321 at one end away from the connecting portion 31 .

[0032] Specifically, Figure 1As shown, the grounding pressure plate 3 includes a connecting portion 31 and a pressing portion 32. The connecting portion 31 is the upper portion of the grounding pressure plate 3 and is flat in structure. It can be closely connected to the inner surface of the box cover 2 to increase the contact area between the two, thereby achieving a reliable connection between the grounding pressure plate 3 and the box cover 2 and preventing it from falling off, thereby facilitating a reliable grounding effect.

[0033] The pressing portion 32 is the lower part of the grounding pressing plate 3, and the bottom end of the lower part, that is, the end away from the connecting portion 31, is formed with a paint breaking tooth 321. The paint breaking tooth 321 is pressed and contacted with the upper surface of the grounding pressing plate 3 to achieve the connection between the grounding pressing plate 3 and the mounting base 1, and the paint breaking tooth 321 is vertically downward, which is beneficial for the tooth tip to break the paint surface of the contact part between the upper surface of the mounting base 1 and the pressing portion 32, thereby achieving effective contact between the grounding pressing plate 3 and the mounting base 1, thereby achieving reliable grounding.

[0034] In some embodiments, the connection portion 31 is configured to be detachably connected to the box cover 2 .

[0035] The connecting portion 31 and the box cover 2 are arranged to be detachably connected, that is, the connecting portion 31 and the box cover 2 can be relatively disassembled, which is conducive to the installation and removal of the grounding pressure plate 3 and the box cover 2. In this way, when the grounding pressure plate 3 or the box cover 2 is damaged and needs to be replaced and repaired, it is convenient to remove it for replacement. Such a setting is simple, flexible, convenient and reliable.

[0036] In actual design, the connection method between the connecting part 31 and the box cover 2 can be set to a detachable connection method such as bolt connection, screw connection, snap connection, etc., which can be flexibly selected according to actual needs and space operation size.

[0037] In some embodiments, the connecting portion 31 is provided with a first connecting hole, and the box cover 2 is provided with a second connecting hole arranged opposite to the first connecting hole, and the first connecting hole and the second connecting hole are used to penetrate the connecting member 4. Thus, by successively penetrating the second connecting hole and the first connecting hole through the connecting member 4, the surface of the connecting portion 31 of the box cover 2 and the grounding pressure plate 3 can be tightly connected, thereby improving the connection reliability between the two, and the box cover 2 and the grounding pressure plate 3 can be relatively disassembled by detaching the connecting member 4 from the connecting hole.

[0038] Specifically, Figure 1As shown, a through first connecting hole is provided on the connecting portion 31, and a thread may be provided in the first connecting hole. A through second connecting hole which is opposite to the first connecting hole, has the same size and is through is provided on the box cover 2, and a thread is also provided in the second connecting hole. The connecting member 4 may be a bolt, and the bolt passes through the second connecting hole and the first connecting hole in sequence to realize the connection between the box cover 2 and the connecting portion 31, which is beneficial to the transmission of current. After the bolt is installed, a nut may be installed on the bolt on the outside of the connecting portion 31 to fix it, so as to prevent the bolt from loosening, resulting in loose connection between the box cover 2 and the grounding pressure plate 3, thereby realizing a stable connection of the grounding pressure plate 3, which is not easy to fall off, thereby realizing reliable grounding and ensuring the normal operation of the electrical equipment 100.

[0039] In some embodiments, both the first connection hole and the second connection hole are multiple, that is, the number of the first connection holes and the second connection holes can be set to two, three, four or even more. Setting multiple first connection holes and second connection holes for connection can improve the connection reliability and stability of the box cover 2 and the connecting part 31. The multiple first connection holes and the multiple second connection holes are distributed one by one, that is, the positions of the multiple first connection holes and the multiple second connection holes are distributed respectively, and the sizes are the same, which is conducive to the smooth passage of multiple connecting parts 4 respectively.

[0040] The plurality of first connection holes are spaced apart in a direction parallel to the mounting base 1 , thereby facilitating operations by personnel in the mounting space to install the connection member 4 .

[0041] Specifically, Figure 1 As shown, the connection part 31 is provided with two first connection holes, the box cover 2 is provided with two second connection holes corresponding to the first connection holes, and the two connection members 4 are respectively and sequentially passed through the two second connection holes and the two first connection holes, and the two first connection holes and the second connection holes are both located on a horizontal line, so that the surface force of the connection part 31 and the box cover 2 can be uniform, and the connection reliability and stability of the connection part 31 and the box cover 2 can be further improved. As shown in the direction in the figure, the penetration direction of the first connection hole is along the horizontal direction, which is parallel to the upper surface direction of the mounting base 1, so that it is convenient for personnel to install the connection member 4 along the horizontal direction and avoid interference between the connection member 4 and the mounting base 1.

[0042] In some embodiments, the grounding pressure plate 3 further includes a middle portion 33 , and the connecting portion 31 and the pressing portion 32 are bent and connected to two sides of the middle portion 33 , respectively, and the connecting portion 31 and the pressing portion 32 are distributed in parallel and spaced apart from each other.

[0043] Specifically, Figure 1As shown, the connecting portion 31 and the pressing portion 32 are connected through the middle portion 33 to form an integral grounding pressure plate 3, and the surface of the middle portion 33 is parallel to the mounting base 1, the connecting portion 31 is bent upward from one end of the middle portion 33 close to the box cover 2, connected and extended, so that the connecting portion 31 is located on the upper side of the middle portion 33 and opposite to the inner side of the box cover 2, thereby facilitating the connection between the connecting portion 31 and the box cover 2, and the pressing portion 32 is bent downward from one end of the middle portion 33 away from the box cover 2, connected and extended, so that the pressing portion 32 is located on the lower side of the middle portion 33 and pressed against the upper surface of the box cover 2, and the middle portion 33 makes the connecting portion 31 and the pressing portion 32 spaced apart and distributed in parallel along the vertical direction, that is, the connecting portion 31 is vertically upward, and the pressing portion 32 is vertically downward.

[0044] Therefore, the bending connection not only increases the strength of the grounding pressure plate 3, but also facilitates contact with the box cover 2 and the mounting base 1 for installation, providing a certain installation space. At the same time, the pressing portion 32 is separated from the side of the box cover 2 facing it by a certain distance, which is convenient for the paint breaking teeth 321 to break the paint.

[0045] In actual design, the grounding pressure plate 3 can be formed by spring steel or stainless steel sheet. Spring steel has high elasticity, ductility, good surface quality and metallurgical quality, and corrosion resistance, and can undergo certain bending deformation, which is conducive to the grounding pressure plate 3 tightly pressing against the box cover 2 and the mounting base 1. Stainless steel has good strength and toughness, corrosion resistance, and high temperature stability, which can increase the life of the grounding pressure plate 3.

[0046] In this way, when the connecting part 31 is installed on the box cover 2 using the connecting piece 4, a certain interference distance can be maintained between the pressing part 32 and the mounting base 1. Then, after the box cover 2 and the mounting base 1 are connected, the grounding pressure piece 3 and the pressing part 32 can be in close and full contact with the upper surface of the mounting base 1, and the paint surface on the mounting base 1 can be broken through the paint breaking teeth 321, thereby achieving reliable and effective grounding.

[0047] In some embodiments, an arcuate transition section 34 is provided at the connection between the connecting portion 31 and the middle portion 33 and / or at the connection between the connecting portion 31 and the pressing portion 32, that is, the connecting portion 31 and the middle portion 33 are connected by bending through the arcuate transition section 34, and the pressing portion 32 and the middle portion 33 are connected by bending through the arcuate transition section 34. The arcuate transition section 34 can improve the strength of the connection between the connecting portion 31 and the middle portion 33 and the connection between the pressing portion 32 and the middle portion 33, prevent local excessive force and stress concentration from causing fracture, and thus improve the life of the grounding pressure plate 3.

[0048] like Figure 1As shown, the connection between the connecting portion 31 and the middle portion 33, and the connection between the middle portion 33 and the pressing portion are both provided with an arc-shaped transition section 34. The arc-shaped transition section 34 at the connection between the connecting portion 31 and the middle portion 33 is directed upward, and the arc-shaped transition section 34 at the connection between the middle portion 33 and the pressing portion 32 is directed downward, which is beneficial for the connecting portion 31 and the pressing portion 32 to extend upward and downward respectively. Therefore, the arc-shaped transition section 34 avoids the connection between the connecting portion 31 and the middle portion 33, and the connection between the middle portion 33 and the pressing portion being connected by a right-angle transition, thereby reducing the risk of breakage.

[0049] In some embodiments, there are multiple paint-breaking teeth 321, that is, the paint-breaking teeth 321 can be set to two, three, four or even more paint-breaking teeth 321, and the multiple paint-breaking teeth 321 are distributed at intervals. Setting multiple paint-breaking teeth 321 distributed at intervals can improve the paint-breaking effect, thereby further improving the grounding effect and facilitating the transmission of current.

[0050] Specifically, Figure 1 As shown, a plurality of paint breaking teeth 321 are vertically arranged downwardly below the pressing portion 32, and the plurality of paint breaking teeth 321 are of the same size and evenly spaced apart, and are in pressing contact with the box cover 2 to improve the paint breaking ability, effectively and quickly break the paint surface on the upper surface of the box cover 2, and achieve an effective paint breaking effect.

[0051] In some embodiments, the grounding pressing plate 3 is located in the installation space, the grounding pressing plate 3 is in contact with the side of the box cover 2 facing the installation space, and the paint-breaking teeth 321 are pressed against the top surface of the installation base 1 .

[0052] Specifically, Figure 1 As shown, as shown in the direction in the figure, the inner side surface of the box cover 2 and the upper top surface of the mounting base 1 define an installation space, the grounding pressure plate 3 is installed in the installation space, and the grounding pressure plate 3 is fitted and connected to the side of the box cover 2 facing the installation space, and the paint breaking teeth 321 are pressed against the top surface of the mounting base 1 to break the paint surface on the top surface of the mounting base 1, so that the two ends of the grounding pressure plate 3 are respectively in contact and connected with the box cover 2 and the mounting base 1 to achieve reliable grounding.

[0053] Among them, the grounding pressing plate 3 is arranged in the installation space, which can ensure that the grounding pressing plate 3 is in a relatively dry and stable state, thereby ensuring the grounding effect of the grounding pressing plate 3.

[0054] In some embodiments, the electrical device 100 is configured as an inverter.

[0055] An inverter is an electronic device that converts low-voltage direct current into alternating current. The inverter needs to be grounded to ensure personal safety and equipment safety. The electrical device 100 is constructed as an inverter, and a grounding pressure plate 3 can be set in the inverter. Thus, through the grounding pressure plate 3, and the grounding pressure plate 3 is formed with paint-breaking teeth 321 that are pressed and contacted with the mounting base 1, the two ends of the grounding pressure plate 3 can be reliably contacted with the mounting base 1 and the grounding pressure plate 3 respectively, and the paint surface on the surface of the mounting base 1 can be broken, thereby achieving reliable and effective grounding of the electrical device 100, without the need to use a grounding wire for grounding, which is simple, reliable and highly practical.

[0056] It should be noted that the electrical device 100 may also be a photovoltaic inverter or other electrical devices 100 that need to be grounded.

[0057] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "illustrative embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0058] Although the embodiments of the present invention have been shown and described, those skilled in the art will appreciate that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. An electrical device, characterized in that: include: Install the base; A box cover, the box cover is connected to the top of the mounting base and defines a mounting space with the mounting base; A grounding pressing plate is connected to the box cover and is formed with paint-breaking teeth that are pressed against the mounting base.

2. The electrical equipment according to claim 1, characterized in that: The grounding pressing piece comprises a connecting portion and a pressing portion, wherein the connecting portion is used for being closely connected with the box cover, and the pressing portion is formed with the paint-breaking teeth at one end away from the connecting portion.

3. The electrical equipment according to claim 2, characterized in that: The connecting portion is configured to be detachably connected to the box cover.

4. The electrical equipment according to claim 3, characterized in that: The connecting portion is provided with a first connecting hole, and the box cover is provided with a second connecting hole arranged opposite to the first connecting hole, and the first connecting hole and the second connecting hole are used for passing a connecting piece.

5. The electrical equipment according to claim 4, characterized in that: There are a plurality of the first connection holes and a plurality of the second connection holes, and the plurality of the first connection holes and the plurality of the second connection holes are distributed in a one-to-one correspondence; Wherein, a plurality of the first connection holes are spaced apart along a direction parallel to the mounting base.

6. The electrical equipment according to claim 2, characterized in that: The grounding pressure plate further includes a middle portion, the connecting portion and the pressing portion are respectively bent and connected to two sides of the middle portion, and the connecting portion and the pressing portion are arranged in parallel and spaced apart.

7. The electrical device according to claim 6, characterized in that: An arc-shaped transition section is provided at the connection between the connecting portion and the middle portion and / or at the connection between the middle portion and the pressing portion.

8. The electrical device according to claim 1, characterized in that: There are a plurality of paint breaking teeth, and the plurality of paint breaking teeth are distributed at intervals.

9. The electrical device according to claim 1, characterized in that: The grounding pressing piece is located in the installation space, the grounding pressing piece is in contact with the side surface of the box cover facing the installation space, and the paint-breaking teeth are pressed against the top surface of the installation base.

10. The electrical device according to claim 1, characterized in that: The electrical device is configured as an inverter.

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