Light indicating device for photovoltaic inverter and photovoltaic inverter

Abstract

The light indicating device comprises a light source, a light shielding plate and a light guide plate, the light shielding plate is located between the light source and the light guide plate, the light guide plate is provided with a light guide column which is used for guiding light emitted by the light source to the outside of a box body of the photovoltaic inverter, and the light guide column is provided with a light guide plate which is used for guiding the light emitted by the light source to the outside of the box body of the photovoltaic inverter. At least one light guide column is provided with a first fastener, the shading plate is provided with a bayonet socket for the light guide column to insert, the bayonet socket is provided with a second fastener matched with the first fastener, the light guide column is inserted into the bayonet socket, and the first fastener and the second fastener are mutually locked. The light indicating device provided by the utility model is more convenient to install.

Description

TECHNICAL FIELD

[0001] The utility model belongs to photovoltaic inverter technical field, concretely relates to a light indicating device and photovoltaic inverter for photovoltaic inverter. BACKGROUND

[0002] In the design of photovoltaic inverter equipment, the running state of inverter equipment is usually displayed through a light indicating device, and the light indicating device includes an upper cover, a light guide plate, a light shield plate and a lamp plate with LED lamp beads, the light emitted by the LED lamp beads is exposed to the upper surface of the upper cover through the light shield plate and the light guide plate, wherein the light guide plate and the light shield plate are located between the upper cover and the lamp plate, and the connection mode of the light guide plate and the light shield plate is relatively cumbersome at present, first, the light guide plate and the light shield plate need to be positioned, and then the periphery of the light guide plate and the light shield plate is fixed by adhesive bonding, which is inconvenient to use. SUMMARY

[0003] In order to solve the above technical problems, the utility model provides a light indicating device for photovoltaic inverter, which is convenient to install.

[0004] The utility model also provides a photovoltaic inverter, which is convenient to use.

[0005] To achieve the above purpose, the utility model adopts the following technical scheme:

[0006] A light indicating device for photovoltaic inverter, comprising a light source and a light guide plate and a light shield plate for guiding the light emitted by the light source to the outside of the box body of the photovoltaic inverter, the light guide plate is provided with a light guide column, at least one of the light guide columns is provided with a first fastener, the light shield plate has a plug-in seat for inserting the light guide column, the groove wall of the plug-in seat is provided with a second fastener matched with the first fastener, and the light guide column is inserted into the plug-in seat and the first fastener and the second fastener are locked with each other.

[0007] Preferably, the first fastener comprises a protrusion, the second fastener comprises a notch and a resisting piece arranged in the notch, and the protrusion is located below the resisting piece. The first fastener and the second fastener are matched, improving the convenience of installation.

[0008] More preferably, the projection of the protrusion and the resisting piece in the horizontal direction at least partially coincides. It can be ensured that the light guide plate and the light shield plate will not be separated from each other.

[0009] Preferably, the number of the first fasteners and the second fasteners is multiple, and the first fasteners and the second fasteners are one-to-one correspondingly arranged.

[0010] Preferably, the lower end of the light guide column has a groove, the light source comprises an LED lamp bead, the groove has a downward facing notch, and the LED lamp bead is covered below the groove.

[0011] Preferably, the number of the LED lamp beads is multiple.

[0012] Preferably, the light guide plate further comprises a body and a mounting seat, the mounting seat is fixedly connected with the upper cover, and the light guide column is arranged on the body; the body and the mounting seat have a gap for inserting the sealing member.

[0013] Preferably, the light guide plate is provided with multiple light display members, the width of the light display member is less than the width of the light guide column, and the length of the light display member is less than the length of the light guide column.

[0014] The utility model discloses still adopt following technical scheme:

[0015] A photovoltaic inverter comprising a box body, the photovoltaic inverter further comprises the light indicating device, and the light indicating device is arranged in the box body.

[0016] The utility model discloses above scheme, compared with prior art has following advantages:

[0017] The light indicating device of the photovoltaic inverter, when assembling, the light guide column of the light guide plate is inserted into the plug-in seat of the light shielding plate, in the process of inserting, the first fastener on the light guide column is deformed under stress and cooperates with the second fastener on the light shielding plate to make the light guide plate and the light shielding plate not easy to separate, the installation of the whole light indicating device is more convenient, saves time and labor cost, further, the light indicating device improves the effective rate and uniformity of light while reducing the mutual influence of light, guarantees the clear, accurate and reliable display. BRIEF DESCRIPTION OF DRAWINGS

[0018] In order to more clearly illustrate the technical scheme of the utility model, the following will be to the embodiment description needed to use the drawing briefly introduced, obviously, the following description in the drawing is only some embodiments of the utility model, for those skilled in the art, under the premise of not paying creative labor, can also obtain other drawings according to these drawings.

[0019] Figure 1 It is a light indicating device according to the embodiment of the utility model schematic diagram;

[0020] Figure 2It is an exploded view of the light indicating device according to the embodiment of the utility model;

[0021] Figure 3 It is a schematic view of the light shielding piece according to the embodiment of the utility model;

[0022] Figure 4 It is a schematic view of the light guide piece according to the embodiment of the utility model;

[0023] Figure 5 It is another schematic view of the light guide piece according to the embodiment of the utility model;

[0024] Figure 6 It is a top view of the light indicating device according to the embodiment of the utility model;

[0025] Figure 7 It is Figure 6 The sectional view along A-A direction in it;

[0026] Figure 8 It is Figure 6 The sectional view along B-B direction in it.

[0027] Among them,

[0028] 100, light indicating device; 200, lamp plate; 201, light source; 202, threaded via; 300, upper cover; 301, plug-in hole; 302, press-in stud; 303, fastener;

[0029] 1, light guide plate; 11, light guide column; 111, groove; 12, light display piece; 13, protruding block; 14, mounting seat; 141, mounting hole; 15, body; 16, gap;

[0030] 2, light shielding plate; 21, plug-in seat; 211, slot wall; 22, resisting piece; 23, slot; 3, sealing piece. DETAILED DESCRIPTION

[0031] The preferred embodiments of the utility model are described in detail below with reference to the drawings, so that the advantages and features of the utility model can be more easily understood by the person skilled in the art. It needs to be explained that the description of these embodiments is used to help understanding the utility model, but does not constitute the limitation to the utility model. In addition, the technical features involved in each embodiment of the utility model described below can be combined with each other as long as they do not conflict with each other.

[0032] The embodiment provides a photovoltaic inverter, including box and light indicating device 100, light indicating device 100 sets up in the inside of box, and light indicating device 100 is used to show the working state of photovoltaic inverter. Further, refer to Figure 2As shown, the light indicating device 100 comprises a lamp plate 200 and a plurality of light sources 201 arranged on the lamp plate 200, and the plurality of light sources 201 are arranged in parallel in the transverse direction. Specifically, the light sources 201 are LED lamp beads, and all the LED lamp beads are welded on the same lamp plate 200, thereby improving the overall unity.

[0033] Further, referring to Figures 1 to 8 As shown, the light indicating device 100 of the embodiment further comprises an upper cover 300, a light guide plate 1, a light shielding plate 2 and a sealing member 3, wherein the light guide plate 1 and the light shielding plate 2 are used to guide the light emitted by the light sources 201 to the outside of the box of the photovoltaic inverter. The light shielding plate 2 is located between the light guide plate 1 and the light sources 201, and the main purpose of the light shielding plate 2 is to prevent light leakage and the like; the sealing member 3 is located between the upper cover 300 and the light guide plate 1, and the upper cover 300 and the light guide plate 1 are connected through the sealing member 3 to ensure that the photovoltaic inverter has the functions of waterproofing and dustproofing.

[0034] Further, referring to Figure 2 As shown, the light guide plate 1 comprises a mounting seat 14 and a body 15 arranged inside the mounting seat 14, and the body 15 and the mounting seat 14 have a gap 16 for inserting the sealing member 3. The light guide plate 1 is provided with a light guide column 11, and the light guide column 11 is specifically arranged on the body 15. The mounting seat 14 and the upper cover 300 are fixedly connected, and specifically, the upper cover 300 is provided with a pressure cast integrally formed pressure rivet 302, the mounting seat 14 is provided with a mounting hole 141, and the lamp plate 200 is provided with a screw through hole 202, and the upper cover 300, the light guide plate 1 and the lamp plate 200 are locked through the pressure rivet 302 and a fastener 303. The fastener 303 of the embodiment is specifically a screw, and more specifically, the screw is locked with the pressure rivet 302 after passing through the threaded through hole 202 and the mounting hole 141, thereby improving the reliability in use.

[0035] The light shielding plate 2 of the embodiment is made of black lightproof plastic material, which can reduce the mutual influence of the light of adjacent light guide columns 11 in the light guide plate 1. The material of the light guide plate 1 is transparent plastic, which ensures that the light transmittance is not too low. The light guide plate 1 itself is added with a light diffusing agent, has good light guiding and uniform display effect, and can uniformly emit the light emitted by the LED lamp.

[0036] In combination with Figures 1 to 4As shown, at least one light guide column 11 is provided with a first fastener, and the light shield plate 2 has a plug-in seat 21 for inserting the light guide column 11, and the groove wall 211 of the plug-in seat 21 is provided with a second fastener for cooperating with the first fastener, and the light guide column 11 is inserted into the plug-in seat 21 and the first fastener and the second fastener are locked with each other. More specifically, the number of light guide columns 11 of the embodiment is five, and the first fastener is arranged on the front side and the rear side of the leftmost and rightmost light guide columns, that is, four first fasteners are arranged in the embodiment, and the number of second fasteners on the corresponding light shield plate 2 is also four. The "front side, rear side, left side and right side" mentioned here refer to the directions shown in the accompanying drawings of the specification. Figure 2

[0037] Further, the first fastener includes a protrusion 13, the second fastener includes a notch 23 and a blocking piece 22 arranged in the notch 23, wherein the notch 23 is a notch arranged in the middle of the groove wall 211, and the notch is located on the front side and the rear side of the light shield plate 2. The protrusion 13 is located below the blocking piece 22, and the protrusion 13 can directly abut against the blocking piece 22 or can leave a certain gap between the protrusion 13 and the blocking piece 22. The projection of the protrusion 13 and the blocking piece 22 in the horizontal direction at least partially overlaps, so as to ensure that the protrusion 13 and the blocking piece 22 cannot easily separate. The light guide plate 1 and the light shield plate 2 are connected through the first fastener and the second fastener, and compared with the prior art of positioning first and then fixing by adhesive, the light indicating device 100 of the embodiment is more convenient to install.

[0038] Referring to Figure 2 As shown, the light guide plate 1 is a flat plate, and a plurality of light display pieces 12 corresponding to the light sources 201 are arranged thereon, specifically five. The light display pieces 12 protrude outward relative to the body 11 of the light guide plate 1, and the upper cover 300 is provided with five plug-in holes 301 corresponding to the light display pieces 12, and the light display pieces 12 are used to transmit the light emitted by the LED lamp beads to the outside of the photovoltaic inverter. Since the material of the light display pieces 12 is transparent plastic, the light display pieces 12 have good light transmission and light scattering functions. Further, the width of the light display pieces 12 is less than the width of the light guide column 11, and the length of the light display pieces 12 is less than the length of the light guide column 11, so as to reduce the dark area phenomenon at both ends of the light display pieces 12.

[0039] ​The inner part of the plug-in base 21 of the light shielding plate 2 constitutes a light propagation channel between the LED lamp and the light display piece 12, one end of the light propagation channel is opposite to one light display piece 12, and the other end is opposite to one light source 201. The light display piece 12 has a first end portion and a second end portion, the first end portion protrudes from the surface of the upper cover 300 of the photovoltaic inverter, so as to realize product working state indication and human-computer interaction function, and the second end portion is inserted into the light propagation channel to strengthen light guiding and light entering. When the light propagates, the light first enters the light propagation channel, and then enters the first end portion through the second end portion, so as to transmit the light emitted by the LED lamp bead to the outside of the photovoltaic inverter for indicating the working state of the photovoltaic inverter device.

[0040] Further, referring to Fig. 1, Figure 5 The lower end portion of the light guide column 11 has a groove 111, which is a smooth arc-shaped groove, and the LED lamp bead is covered below the groove 111, and the groove 111 has a downward facing notch. Part of the plurality of light sources 201 is located in the groove 111, which is beneficial to improve the effective introduction of light. The plurality of light sources 201 are arranged in parallel along the transverse direction on a lamp plate 200, and the length of the groove 111 is greater than or equal to the length of the plurality of light sources 201 in the transverse direction.

[0041] Part of the light source 201 of the embodiment is in the smooth arc-shaped groove 111, as many light rays as possible emitted by the light source 201 are introduced into the light guide column 11, the overflow of light in the light guide column 11 is reduced, and the light in the light guide column 11 is guided out to the surface of the upper cover 300 through the light display piece 12; the second fastener of the light shielding plate 2 and the first fastener of the light guide plate 1 are matched to assemble the light shielding plate 2 and the light guide plate 1, and the installation is more convenient.

[0042] In the design of a photovoltaic inverter device, a screen or light information is usually adopted to display the running state of the inverter device, and in the design of the light information, there are usually single-color lamp beads displaying at different times, single-color lamp beads displaying at the same time, multi-color lamp beads displaying at different times and same colors, multi-color lamp beads displaying at different times and different colors, multi-color lamp beads displaying at the same time and same colors, and multi-color lamp beads displaying at the same time and different colors, and there are problems of light loss, light interference between adjacent lamp beads, and color interference of light between same-color lamp beads. If the photovoltaic inverter device cannot clearly and explicitly display the running state during the running process, the user experience will be poor, and even there will be problems of judgment error and inaccurate fault positioning during maintenance. In order to improve the user experience and ensure the accuracy of the light information display, the light shielding plate 2 of the embodiment is black and non-transparent, which reduces the light leakage phenomenon; the material of the light guide plate 1 is transparent plastic, which ensures the light transmittance; and a part of the structure of the light source is inserted into the groove 111 to ensure that sufficient light can enter the light propagation path, that is, the light indicating device of the embodiment reduces the mutual influence between the light of adjacent light guide columns while improving the efficiency and uniformity of the light, and ensures the clarity, accuracy and reliability of the light display piece 12.

[0043] As shown in the specification and claims, the term "comprising" only indicates the inclusion of explicitly identified steps and elements, and the steps and elements do not constitute an exclusive list, and the method or device can also include other steps or elements. The term "and / or" used herein includes any combination of one or more related listed items.

[0044] It should be noted that, unless otherwise specified, when a certain feature is referred to as "fixed" or "connected" to another feature, it can be directly fixed or connected to the other feature, or indirectly fixed or connected to the other feature. In addition, the up, down, left, right and other descriptions used in the utility model are only relative to the mutual position relationship of the components of the utility model in the drawings.

[0045] The above embodiments are only for illustrating the technical concept and characteristics of the utility model, and are preferred embodiments, and the purpose is to enable those skilled in the art to understand the content of the utility model and implement it, and the protection scope of the utility model cannot be limited by this. Any equivalent transformation or modification made according to the principle of the utility model should be covered within the protection scope of the utility model.

Claims

1. A light indicating device for a photovoltaic inverter, comprising a light source, a light shield and a light guide, the light shield being located between the light source and the light guide, characterized in that, The light guide plate is provided with light guide columns for guiding light emitted by the light source to outside of the photovoltaic inverter box, at least one of the light guide columns is provided with a first fastener, the light shield plate is provided with plug-in seats for the light guide columns, the plug-in seats are provided with second fasteners for cooperating with the first fasteners, the light guide columns are inserted into the plug-in seats, and the first fasteners and the second fasteners are locked with each other.

2. The light indicating device of claim 1, wherein, The first fastener comprises a protrusion, the second fastener comprises a notch provided on a side wall of the plug-in seat and a resisting member provided in the notch, and the protrusion is below the resisting member.

3. The light indicating device of claim 2, wherein, Projections of the protrusion and the resisting member in a horizontal direction at least partially coincide.

4. The light indicating device of claim 2, wherein, The first fasteners and the second fasteners are in one-to-one correspondence.

5. The light indicating device of claim 1, wherein, A lower end of the light guide column is provided with a groove, the light source comprises LED lamp beads, the groove is provided with a downward-facing notch, and the LED lamp beads are covered below the groove.

6. The light indicating device of claim 5, wherein, The LED lamp beads are in plurality.

7. The light indicating device of claim 1, wherein, The light indicating device further comprises an upper cover, and the upper cover and the light guide plate are further provided with a sealing member.

8. The light indicating device of claim 7, wherein, The light guide plate further comprises a body and a mounting seat, the mounting seat is fixedly connected with the upper cover, and the light guide columns are arranged on the body; and the body and the mounting seat are provided with a gap for inserting the sealing member.

9. The light indicating device of claim 1, wherein, The light guide plate is provided with a plurality of light display members, a width of the light display members is less than a width of the light guide columns, and a length of the light display members is less than a length of the light guide columns.

10. A photovoltaic inverter comprising a cabinet, characterized in that The photovoltaic inverter further comprises the light indicating device according to any one of claims 1 to 9, and the light indicating device is arranged in the box.

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