Electric connector and inverter for solar cell module comprising the electric connector

Abstract

An electrical connector according to an aspect includes: a first connector and a second connector, the first connector and the second connector arranged to electrically and physically couple or decouple an inverter and a power source connector to each other, a bracket for coupling the first connector and the second connector together, and a lens unit coupled to the bracket, wherein the lens unit includes a lens exposed to an outside of the housing and a light pipe connected to the lens and a light source.

Description

Technical Field

[0001] This disclosure relates to electrical connectors and inverters that include electrical connectors for connection to solar cell modules. Background Technology

[0002] A solar cell module may include a solar panel and a wiring box. The solar panel has solar cells, and the wiring box has components, circuits, etc. that are connected to the solar panel.

[0003] After a solar panel module is installed, its operational status may only be checked using a separate communication device (such as a website or application). Because the operational status of the solar panel module is difficult to identify from the module itself, there is a risk of mismanagement.

[0004] To address this problem, solar cell modules equipped with structures and components capable of checking their operational status have been proposed. For example, a structure has been proposed in which a light source capable of indicating the operational status is provided within the solar cell module, and the operational status of the solar cell module is checked by whether the light source is driven (i.e., whether the light source flickers, is intermittent, etc.).

[0005] To this end, a structure has been proposed in which a lens is located on the side wall of a wiring box, a light source is inserted into a sensing tube, one side of the sensing tube is fixed to a portion of the wiring material, and the other side of the sensing tube is fixed to the lens.

[0006] This necessitates a light source, lens, sensor tube, and sensor tube guide to inspect the operational status of the solar cell module. Furthermore, an O-ring is required between the lens and the housing for waterproofing. Thus, the cost increases as the number of components in the equipment used to inspect the operational status of the solar cell module increases. Moreover, the manufacturing process becomes more complex, leading to lower productivity. Summary of the Invention

[0007] Technical issues

[0008] An electrical connector is provided that has the function of indicating the operation of a solar cell module, and the electrical connector is included in an inverter for the solar cell module.

[0009] In addition, an inverter for solar cell modules is provided that can improve productivity by simplifying the internal configuration.

[0010] The problems to be solved by this disclosure are not limited to those described above, and other problems not mentioned herein will be clearly understood by those skilled in the art from the following description.

[0011] Technical solution

[0012] According to one aspect, the electrical connector includes: a first connector and a second connector, a bracket, and a lens unit, wherein the first connector and the second connector are arranged to electrically and physically connect the inverter and the power connector to each other or to electrically and physically disconnect the inverter and the power connector from each other, the bracket is used to connect the first connector and the second connector together, and the lens unit is connected to the bracket, wherein the lens unit includes a lens and a sensing tube, the lens being exposed outside the housing, and the sensing tube being connected to the lens and a light source.

[0013] In the aforementioned electrical connector, the sensing tube includes a first part connected to the lens and passing through the bracket, and a second part bent from the first part and aligned with the light source.

[0014] According to another aspect, an inverter for a solar cell module includes: a substrate, a housing, a support, a first connector and a second connector, and a lens unit. A light source cooperating with the operation of the solar cell module is arranged on the substrate. The housing contains the substrate. The support is mounted to the housing. The first and second connectors are connected to the support. The lens unit is connected to the support. The lens unit includes a lens and a sensor tube. The lens is exposed outside the housing. The sensor tube is connected to the lens and the light source. The first connector includes a first stepped surface, a second stepped surface spaced apart from the first stepped surface, a third stepped surface spaced apart from the second stepped surface, a first tooth connecting the first and second stepped surfaces, and a tooth connecting the second and third stepped surfaces. The first outer peripheral surface, the second connector including a fourth stepped surface, a fifth stepped surface spaced apart from the fourth stepped surface, a sixth stepped surface spaced apart from the fifth stepped surface, a second tooth connecting the fourth stepped surface and the fifth stepped surface, and a second outer peripheral surface connecting the fifth stepped surface and the sixth stepped surface, the bracket including a first contact surface contacting the first stepped surface, a third tooth engaging the first tooth, a second contact surface contacting the second stepped surface, a third contact surface contacting the third stepped surface, a fourth contact surface contacting the fourth stepped surface, a fourth tooth engaging the second tooth, a fifth contact surface contacting the fifth stepped surface, and a sixth contact surface contacting the sixth stepped surface, and the lens contacting the outer peripheral surface of the bracket.

[0015] In the inverter used for solar cell modules described above, the support includes a seventh contact surface that contacts a first outer peripheral surface and an eighth contact surface that contacts a second outer peripheral surface.

[0016] In the inverter for the solar cell module described above, the first connector includes a third outer peripheral surface connected to the third stepped surface, and the bracket includes a ninth contact surface that contacts the third outer peripheral surface.

[0017] In the inverter used for the solar cell module described above, the outer diameter of the third outer circumferential surface is smaller than the outer diameter of the first outer circumferential surface.

[0018] In the inverter for the solar cell module described above, the second connector includes a fourth outer peripheral surface connected to the sixth stepped surface, and the bracket includes a tenth contact surface that contacts the fourth outer peripheral surface.

[0019] In the inverter used for the solar cell module described above, the outer diameter of the fourth outer circumferential surface is smaller than the outer diameter of the second outer circumferential surface.

[0020] In the inverter used for the solar cell module described above, the radial thickness of the third step surface is less than the radial thickness of the first step surface, and the radial thickness of the sixth step surface is less than the radial thickness of the fourth step surface.

[0021] In the inverters used for solar cell modules described above, the lens protrudes beyond the bracket and is exposed to the outside.

[0022] In the inverter for the solar cell module described above, the housing includes an upper housing and a lower housing connected to the upper housing. The upper housing includes ribs protruding from the inside. The upper surface of the bracket contacts the ribs, and the lower surface of the bracket contacts the lower surface of the lower housing.

[0023] In the inverter described above for solar cell modules, the induction tube includes a first part connected to a lens and passing through a bracket, and a second part bent from the first part and aligned with a light source.

[0024] Beneficial effects

[0025] According to an embodiment, the lens unit and bracket, including the connector and the sensing tube, can be manufactured by integral injection molding, thereby simplifying the configuration and improving productivity.

[0026] According to an embodiment, the lens unit and bracket, including the connector and the sensing tube, can be manufactured by integral injection molding, thereby facilitating assembly.

[0027] According to an embodiment, the lens unit and bracket, including the connector and the sensing tube, can be manufactured by integral injection molding, thereby improving waterproof performance. Attached Figure Description

[0028] Figure 1 This is a diagram illustrating an inverter for a solar cell module according to an embodiment.

[0029] Figure 2 yes Figure 1 An exploded view of the inverter shown.

[0030] Figure 3This is a front perspective view of the bracket, first connector, second connector, and lens unit according to an embodiment.

[0031] Figure 4 This is a rear perspective view of the bracket, first connector, second connector, and lens unit according to an embodiment.

[0032] Figure 5 It is along Figure 1 The side view of the cross section cut by the virtual line AA.

[0033] Figure 6 It is along Figure 1 The side view of the cross section cut by the virtual line BB.

[0034] Figure 7 It is along Figure 1 The side view of the cross section cut by the virtual line CC.

[0035] Figure 8 This is a diagram showing the upper housing according to an embodiment.

[0036] Figure 9 This is a diagram showing the lower housing according to an embodiment.

[0037] Figure 10 This is a diagram showing the bracket, first connector, second connector, and lens unit viewed from below according to an embodiment. Detailed Implementation

[0038] The best embodiment of the present invention

[0039] According to one aspect, the electrical connector includes: a first connector and a second connector, a bracket, and a lens unit, wherein the first connector and the second connector are arranged to electrically and physically connect the inverter and the power connector to each other or to electrically and physically disconnect the inverter and the power connector from each other, the bracket is used to connect the first connector and the second connector together, and the lens unit is connected to the bracket, wherein the lens unit includes a lens and a sensing tube, the lens being exposed outside the housing, and the sensing tube being connected to the lens and a light source.

[0040] Embodiments of the present invention

[0041] Preferred embodiments of the present disclosure will be described in detail below with reference to the accompanying drawings.

[0042] However, the technical concept of this disclosure is not limited to the described embodiments, but can be implemented in a variety of different forms. Within the scope of the technical concept of this disclosure, one or more components in the embodiments may be selectively combined or substituted.

[0043] Furthermore, unless explicitly and specifically defined and described, the terms (including technical and scientific terms) used in the embodiments of this disclosure may be interpreted as having a meaning that would be commonly understood by one of ordinary skill in the art to which this disclosure pertains, and the commonly used terms (e.g., terms defined in a dictionary) may be interpreted in light of the contextual meaning of the prior art.

[0044] Furthermore, the terminology used in the embodiments of this disclosure may be for the purpose of describing the embodiments and is not intended to limit this disclosure.

[0045] In this specification, unless otherwise specified in the phrase, the singular may also include the plural, and where the singular is described as “at least one (or one or more) of A, B and C”, the singular may include one or more of all combinations that can be combined with A, B and C.

[0046] Furthermore, when describing components of embodiments of this disclosure, terms such as first, second, A, B, (a), (b) may be used.

[0047] This terminology is used only to distinguish one component from another, and not to restrict the nature, order, sequence, etc. of the components.

[0048] Furthermore, when a component is described as being “connected,” “linked,” or “attached” to another component, this can include not only cases where the component is directly connected, linked, or attached to another component, but also cases where the component is “connected,” “linked,” or “attached” to another component through another component between the component and the other component.

[0049] Furthermore, when described as including or arranged "above" or "below" each component, "above" or "below" can include not only cases where two components are in direct contact with each other, but also cases where one or more other components are included or arranged between the two components. Moreover, when expressed as "above" or "below," this can include not only the meaning based on an upward direction of a component, but also the meaning based on a downward direction of a component.

[0050] Figure 1 This is a diagram illustrating an inverter for a solar cell module according to an embodiment. Figure 2 yes Figure 1 An exploded view of the inverter shown.

[0051] Reference Figure 1 and Figure 2An inverter for a solar cell module (hereinafter referred to as an "inverter") may include a substrate 100, a housing 200, a bracket 300, a first connector 400, a second connector 500, and a lens unit 600. For example, the inverter may be connected to a solar cell module.

[0052] An inverter can convert the current, voltage, or power generated by solar cell modules. In this respect, conversion can be a change in the value and / or type of current, voltage, or power. For example, an inverter can change the value of current, voltage, or power to another value. Furthermore, an inverter can convert current, voltage, or power from direct current (DC) to alternating current (AC), or vice versa. The current, voltage, or power converted by the inverter can be transmitted externally via cables.

[0053] A light source that operates in conjunction with the solar cell module can be arranged on the substrate 100. For example, the light emitted from the light source can be a signal indicating the operating status of the solar cell module. That is, the operating status of the solar cell module can be output using various representations of light.

[0054] As an example, the normal operation of the solar cell module can be represented by turning the light on and off. For instance, when the solar cell module is operating normally, the light source can remain off, and when there is a problem with the solar cell module, the light source can be turned on. Furthermore, when the solar cell module is operating normally, the light source 110 can remain on, and when there is a problem with the solar cell module, the light source 110 can be turned off.

[0055] As another example, various behavioral problems of solar cell modules can be represented by the duration of light exposure, the color of the light, and the intensity of the light. For instance, depending on which component in the solar cell module is malfunctioning, light can be applied at different time intervals, with different colors, and / or with different intensities.

[0056] Any device that can be illuminated by light can be considered a light source, without limitation. For example, a light source can be implemented as a liquid crystal display (LCD), a light-emitting diode (LED), an organic light-emitting diode (OLED), a quantum dot light-emitting diode (QLED), a μLED, etc.

[0057] The substrate 100 can be housed inside the housing 200. For example, the housing 200 may include an upper housing 210, a lower housing 220, and a support housing 230. The substrate 100 may be disposed between the upper housing 210 and the lower housing 220. The support housing 230 may be disposed below the lower housing 220.

[0058] The bracket 300 can be connected to the housing 200 to support the first connector 400, the second connector 500, and the lens unit 600.

[0059] The first connector 400 and the second connector 500 are arranged to electrically and physically connect the inverter and the power connector to each other or to disconnect the inverter and the power connector from each other. For example, the first connector 400 and the second connector 500 may be connected to the bracket 300, and the first connector 400 and the second connector 500 may be concave connectors or convex connectors, respectively.

[0060] The lens unit 600 can emit light from the light source to the outside of the housing 200, making the light recognizable to the user. For example, the lens unit 600 can be attached to the bracket 300.

[0061] In the following text, refer to Figures 3 to 10 The following describes an electrical connector 700 that includes a bracket 300, a first connector 400, a second connector 500, and a lens unit 600.

[0062] Figure 3 This is a front perspective view of the bracket, first connector, second connector, and lens unit according to an embodiment. Figure 4 This is a rear perspective view of the bracket, first connector, second connector, and lens unit according to an embodiment.

[0063] Reference Figure 3 and Figure 4 The bracket 300, the first connector 400, the second connector 500 and the lens unit 600 can be integrally molded and implemented as a single piece.

[0064] First, the first connector 400 and the second connector 500 are injection molded side-by-side, aligning each other, so that the first connector 400, the second connector 500, and the bracket 300 can be molded into a single unit. Then, the lens unit 600 is included between the first connector 400 and the second connector 500 by injection molding, so that the bracket 300, the first connector 400, the second connector 500, and the lens unit 600 can be molded into a single unit.

[0065] The support 300 can be made of a material that does not deform after molding. For example, the support 300 can be made of a plastic resin, but is not limited to this.

[0066] At least one of the first connector 400 and the second connector 500 may protrude beyond the bracket 300 in the front-rear direction. The lens unit 600 may also protrude beyond the bracket 300 to be exposed to the outside.

[0067] By integrating the four components into one unit, the structure of the electrical connector 700 can be simplified. Therefore, the productivity of the electrical connector 700 can be improved, as can its waterproof performance.

[0068] Figure 5 It is along Figure 1 The side view of the cross section cut by the virtual line AA.

[0069] Reference Figure 5 The first connector 400 may include a first stepped surface ST1, a second stepped surface ST2, and a third stepped surface ST3. Furthermore, the first connector 400 may include a first tooth TW1, a first outer circumferential surface O1, and a third outer circumferential surface O3.

[0070] For example, the first stepped surface ST1, the second stepped surface ST2, and the third stepped surface ST3 can each be annular. Furthermore, the second stepped surface ST2 can be spaced apart from the first stepped surface ST1, and the third stepped surface ST3 can be spaced apart from the second stepped surface ST2.

[0071] For example, the first tooth TW1 can connect the first stepped surface ST1 and the second stepped surface ST2. Furthermore, the first outer circumferential surface O1 is cylindrical and can connect the second stepped surface ST2 and the third stepped surface ST3. Additionally, the third outer circumferential surface O3 is cylindrical and can be connected to the third stepped surface ST3.

[0072] The bracket 300 may include a first contact surface CS1, a second contact surface CS2, a third contact surface CS3, a seventh contact surface CS7, and a ninth contact surface CS9.

[0073] For example, the first contact surface CS1 can contact the first stepped surface ST1, and the first contact surface CS1 can be annular. Furthermore, the second contact surface CS2 can contact the second stepped surface ST2, and the second contact surface CS2 can be annular. Furthermore, the third contact surface CS3 can contact the third stepped surface ST3, and the third contact surface CS3 can be annular. Additionally, the seventh contact surface CS7 can contact the first outer peripheral surface O1, and the ninth contact surface CS9 can contact the third outer peripheral surface O3. The seventh contact surface CS7 and the ninth contact surface CS9 can each be cylindrical.

[0074] In addition, the bracket 300 may include a third tooth TW3, which can connect the first contact surface CS1 and the second contact surface CS2.

[0075] For example, the first tooth TW1 and the third tooth TW3 can engage with each other in a direction that increases the contact area between the bracket 300 and the first connector 400. Therefore, the connection strength between the bracket 300 and the first connector 400 can be increased. Figure 5 In the diagram, the first tooth TW1 and the third tooth TW3 are each shown as having a serrated shape, but are not limited to this. The first tooth TW1 and the third tooth TW3 can be manufactured in various shapes, such as wavy shapes, rough shapes, etc., to increase the surface area of ​​contact between them.

[0076] exist Figure 5 In the figure, the outer diameter D3 of the third outer circumferential surface O3 is shown to be smaller than the outer diameter D1 of the first outer circumferential surface O1, and the radial thickness t3 of the third stepped surface ST3 is shown to be smaller than the radial thickness t1 of the first stepped surface ST1, but is not limited thereto.

[0077] Figure 6 It is along Figure 1 The side view of the cross section cut by the virtual line BB.

[0078] Reference Figure 6 The lens unit 600 may be made of a transparent resin material. Furthermore, the lens unit 600 may include a lens 610 and a sensing tube 620 extending from the lens 610.

[0079] For example, lens 610 may be located in front of bracket 300 and may contact the outer surface of bracket 300. Sensor 620 may be positioned to pass through bracket 300. For example, sensor 620 may include a first portion 621 passing through bracket 300 and a second portion 622 bent from the first portion 621 and aligned with a light source. In this respect, the first portion 621 may be arranged spaced apart from bracket 300.

[0080] Figure 7 It is along Figure 1 The side view of the cross section cut by the virtual line CC.

[0081] Reference Figure 7 The second connector 500 may include a fourth stepped surface ST4, a fifth stepped surface ST5, and a sixth stepped surface ST6. Furthermore, the second connector 500 may include a second tooth TW2, a second outer circumferential surface O2, and a fourth outer circumferential surface O4.

[0082] For example, the fourth step surface ST4, the fifth step surface ST5, and the sixth step surface ST6 can each be annular. Furthermore, the fifth step surface ST5 can be spaced apart from the fourth step surface ST4, and the sixth step surface ST6 can be spaced apart from the fifth step surface ST5.

[0083] For example, the second tooth TW2 can connect the fourth stepped surface ST4 and the fifth stepped surface ST5. Furthermore, the second outer circumferential surface O2 is cylindrical and can connect the fifth stepped surface ST5 and the sixth stepped surface ST6. Additionally, the fourth outer circumferential surface O4 is cylindrical and can be connected to the sixth stepped surface ST6.

[0084] The bracket 300 may include a fourth contact surface CS4, a fifth contact surface CS5, a sixth contact surface CS6, an eighth contact surface CS8, and a tenth contact surface CS10.

[0085] For example, the fourth contact surface CS4 can contact the fourth stepped surface ST4, and the fourth contact surface CS4 can be annular. Furthermore, the fifth contact surface CS5 can contact the fifth stepped surface ST5, and the fifth contact surface CS5 can be annular. Additionally, the sixth contact surface CS6 can contact the sixth stepped surface ST6, and the sixth contact surface CS6 can be annular. Furthermore, the eighth contact surface CS8 can contact the second outer peripheral surface O2. Additionally, the tenth contact surface CS10 can contact the fourth outer peripheral surface O4, and both the eighth contact surface CS8 and the tenth contact surface CS10 can be cylindrical.

[0086] In addition, the bracket 300 may include a fourth tooth TW4, which can connect the fourth contact surface CS4 and the fifth contact surface CS5.

[0087] For example, the second tooth TW2 and the fourth tooth TW4 can engage with each other in a direction that increases the contact area between the bracket 300 and the second connector 500. Therefore, the connection strength between the bracket 300 and the second connector 500 can be increased. Figure 7 In the diagram, the second tooth TW2 and the fourth tooth TW4 are each shown in a sawtooth shape, but are not limited to this. The second tooth TW2 and the fourth tooth TW4 can be manufactured in various shapes, such as wavy shapes, rough shapes, etc., to increase the surface area of ​​contact between them.

[0088] exist Figure 7 In the figure, the outer diameter D4 of the fourth outer circumferential surface O4 is shown to be smaller than the outer diameter D2 of the second outer circumferential surface O2, and the radial thickness t6 of the sixth stepped surface ST6 is shown to be smaller than the radial thickness t4 of the fourth stepped surface ST4, but is not limited thereto.

[0089] Figure 8 This is a diagram showing the upper housing according to an embodiment.

[0090] Reference Figure 8 The upper housing 210 may include a rib 211 protruding from the inside, and the upper surface of the bracket 300 may contact the rib 211.

[0091] Figure 9 This is a diagram showing the lower housing according to an embodiment. Figure 10 This is a diagram showing the bracket, first connector, second connector, and lens unit viewed from below according to an embodiment.

[0092] Reference Figure 9 and Figure 10 The lower surface of the bracket 300 can contact the lower surface of the lower housing 220. In this case, the lower housing 220 may include at least one protrusion 221 projecting from the inside. Furthermore, the bracket 300 may include at least one groove 301 disposed on its lower surface. For example, when the protrusion 221 is inserted into the groove 301, the bracket 300 can contact the lower housing 220. The presence of the groove 301 and the protrusion 221 can improve the connection strength between the bracket 300 and the housing 200.

[0093] However, the arrangement of the protrusions 221 and the grooves 301 is not limited to... Figure 9 and Figure 10 The arrangements shown. In other words, there are no restrictions on the number and arrangement of the protrusions 221 and the grooves 301 when the protrusions 221 can be inserted into the grooves 301.

[0094] It should be understood that the above embodiments of this disclosure are illustrative in all respects and not restrictive, and the scope of this disclosure is indicated by the claims described below rather than by the detailed description above. Furthermore, the meaning and scope of the claims, as well as all variations or modifications derived from equivalent concepts, should be construed as being included within the scope of this disclosure.

Claims

1. An electrical connector included in an inverter, the electrical connector comprising: A first connector and a second connector are arranged to electrically and physically connect the inverter and the power connector to each other or to disconnect the inverter and the power connector from each other. A bracket for connecting the first connector and the second connector together; as well as Lens unit, the lens unit being connected to the bracket, wherein, The lens unit includes a lens and a sensor tube. The lens is exposed outside the housing, and the sensor tube is connected to the lens and a light source. The first connector and the second connector protrude beyond the bracket in the front-rear direction, and The first connector, the second connector, the bracket, and the lens unit are implemented as a single unit. The bracket is injection molded while the first connector and the second connector are aligned side by side.

2. The electrical connector according to claim 1, wherein, The sensing tube includes: A first part connected to the lens and passing through the bracket, and a second part that bends from the first part and is aligned with the light source.

3. An inverter for a solar cell module, the inverter comprising: A substrate on which a light source that works in conjunction with the operation of the solar cell module is arranged; A housing, the interior of which includes the substrate; A bracket, which is mounted on the housing; A first connector and a second connector are connected to the bracket; as well as Lens unit, the lens unit being connected to the bracket, wherein, The lens unit includes a lens and a sensor tube. The lens is exposed outside the housing, and the sensor tube is connected to the lens and the light source. The first connector includes a first annular stepped surface, a second annular stepped surface spaced apart from the first annular stepped surface, a third annular stepped surface spaced apart from the second annular stepped surface, a first tooth connecting the first annular stepped surface and the second annular stepped surface, and a first cylindrical outer circumferential surface connecting the second annular stepped surface and the third annular stepped surface. The second connector includes a fourth annular stepped surface, a fifth annular stepped surface spaced apart from the fourth annular stepped surface, a sixth annular stepped surface spaced apart from the fifth annular stepped surface, a second tooth connecting the fourth annular stepped surface and the fifth annular stepped surface, and a second cylindrical outer circumferential surface connecting the fifth annular stepped surface and the sixth annular stepped surface. The bracket includes a first contact surface that contacts the first annular stepped surface, a third tooth that engages with the first tooth, a second contact surface that contacts the second annular stepped surface, a third contact surface that contacts the third annular stepped surface, a fourth contact surface that contacts the fourth annular stepped surface, a fourth tooth that engages with the second tooth, a fifth contact surface that contacts the fifth annular stepped surface, and a sixth contact surface that contacts the sixth annular stepped surface. The lens is in contact with the outer surface of the bracket.

4. The inverter for a solar cell module according to claim 3, wherein, The bracket includes a seventh contact surface that contacts the outer peripheral surface of the first cylindrical shape, and an eighth contact surface that contacts the outer peripheral surface of the second cylindrical shape.

5. The inverter for a solar cell module according to claim 4, wherein, The first connector includes a third outer circumferential surface connected to the third annular stepped surface, and The bracket includes a ninth contact surface that contacts the third outer peripheral surface.

6. The inverter for a solar cell module according to claim 5, wherein, The outer diameter of the third circumferential surface is smaller than the outer diameter of the first cylindrical circumferential surface.

7. The inverter for a solar cell module according to claim 6, wherein, The second connector includes a fourth outer circumferential surface connected to the sixth annular stepped surface, and The bracket includes a tenth contact surface that contacts the fourth outer peripheral surface.

8. The inverter for a solar cell module according to claim 7, wherein, The outer diameter of the fourth circumferential surface is smaller than the outer diameter of the second cylindrical circumferential surface.

9. The inverter for a solar cell module according to claim 8, wherein, The radial thickness of the third annular stepped surface is less than the radial thickness of the first annular stepped surface, and the radial thickness of the sixth annular stepped surface is less than the radial thickness of the fourth annular stepped surface.

10. The inverter for a solar cell module according to claim 9, wherein, The lens protrudes beyond the bracket and is exposed to the outside.

11. The inverter for a solar cell module according to claim 10, wherein, The housing includes an upper housing and a lower housing connected to the upper housing, and The upper housing includes ribs protruding from the inside, and The upper surface of the bracket contacts the rib, and the lower surface of the bracket contacts the lower surface of the lower housing.

12. The inverter for a solar cell module according to claim 11, wherein, The sensing tube includes a first portion connected to the lens and passing through the bracket, and a second portion that bends from the first portion and is aligned with the light source.

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