Kit components for a solar module system, method for producing a solar module system, and use of a spacer

Abstract

The present invention relates to a kit comprising a solar module (2), the solar module having a positive cable (21) including a positive plug (22), a negative cable (23) including a negative plug (24), and a spacer (1), wherein the spacer (1) includes a first flat portion (11) that extends across a first flat portion plane and has a first flat portion outer edge (111), the spacer (1) further includes another flat portion (12) that extends across another flat portion plane and has another flat portion outer edge (121), the first flat portion (11) has a fixing device (113) and / or the another flat portion (12) has another fixing device (123), the first flat portion (11) and the another flat portion (12) can be mounted on each other in such a way that the first flat portion plane is arranged at a fixed angle with respect to the another flat portion plane, and a plug groove is formed between the first flat portion plane and the another flat portion plane, the plug groove being spaced apart from the first flat portion outer edge (111) and the another flat portion outer edge (121). Furthermore, the present invention relates to a method for producing a solar module system using the kit. Furthermore, the present invention relates to the application of such a spacer (1) in a solar module system for holding a plug connection at a predetermined distance from a base.

Description

Technical Field

[0001] The present invention relates to a kit for a solar module system, a method for producing a solar module system, and the use of a spacer in the solar module system. In particular, the present invention relates to a kit comprising a spacer, suitable for producing a solar module system, a method for producing the solar module system using the kit, and the use of the spacer in the solar module system. Background Art

[0002] Solar module systems typically consist of a plurality of solar modules electrically connected to each other. For this purpose, each solar module has a positive cable with a positive plug and a negative cable with a negative plug, respectively. The electrical connection of the solar modules is achieved by a plug connection between the positive plug of one solar module and the negative plug of another solar module. According to the prior art, which has not been proven in the literature, the positive and negative cables can be fixed to the solar cell module by plastic clips. However, such clips are relatively difficult to fasten. In addition, since the fastening is based on a clamping effect, its durability is not permanent, and plastics exposed to ultraviolet light for many years and decades outdoors will lose their elasticity and break.

[0003] In addition, due to the need to save materials, it may happen that the cables are too short to be fastened to the solar module frame of the solar module. Another convenient way to permanently place the cables of the interconnected solar modules is to place the plugs on the underlying surface on which the solar modules are also permanently mounted. This method is contrary to the fact that the positive and negative plugs must not be in permanent contact with water, which may occur, for example, due to puddles on the ground, as this would cause poor electrical insulation faults in the entire solar module system. Summary of the Invention

[0004] Therefore, the object of the present invention is to provide a device that ensures that the positive and negative plugs of the installed solar module system are permanently away from such puddles on the ground.

[0005] According to the present invention, this object is achieved by a kit having the features of claim 1, a method having the features of claim 12, and a use having the features of claim 14.

[0006] To this end, the kit part has a spacer which has a first flat part and another flat part. The spacer is designed to save space in the unassembled state and can be easily assembled without using tools. In the assembled state, when used in a solar module system, the spacer ensures a predetermined distance between the lower cushion surface for permanently mounting the solar module and the plug connection, which includes a positive plug and a negative plug. To this end, the first flat part spans a first flat part plane having an outer edge of the first flat part, and the other flat part spans another flat part plane having an outer edge of the other flat part. In addition, the first flat part has a fixing device and / or the other flat part has another fixing device, and the first flat part and the other flat part can be mounted to each other in such a way that the first flat part plane is arranged at a fixed angle to the other flat part plane, and a plug groove is formed between the first flat part plane and the other flat part plane at a certain distance from the outer edge of the first flat part and the outer edge of the other flat part to receive the plug connection between the positive plug and the negative plug of the solar module.

[0007] The present invention prevents the plug connection of the solar module system from coming into direct contact with a lower cushion surface such as the ground or a roof surface. This prevents the plugs from being permanently exposed to dust and standing water. Thereby, the electrical safety and lifespan of the solar module as well as the solar module system are improved. Since the spacer can be assembled by arranging the first flat part and the other flat part at a fixed angle relative to each other by means of the fixing device, the desired effect is achieved at a relatively low material cost. In the sense of the present invention, the region of the spacer located between the first flat part and the other flat part and at a certain distance from the outer edge of the first flat part and the outer edge of the other flat part in each case is considered to be the plug groove. By means of its outer edge of the first flat part and its outer edge of the other flat part, the spacer has been arranged on a laying surface such as the ground or a roof surface, and the spacer is in contact with the ground or the roof surface. Since the outer edge of the first flat part and the outer edge of the other flat part are arranged at a certain distance from the plug groove, the plug groove having a plug connection composed of a positive plug and a negative plug located in the plug groove is at a certain distance from the laying surface. To ensure this desired spacing of the plug connection from the laying surface, the first flat part and the other flat part must have dimensions related to the length of the positive plug and the negative plug such that the plug connection formed by the positive plug and the negative plug and fastened in the plug groove is located at a certain distance from the outer edge of the first flat part and the outer edge of the other flat part.

[0008] If desired, the spacer can be assembled in the manner described above and, in the assembled state, serves as a spacer in the solar module system, which ensures a predetermined distance between the plug connection arranged thereon and the underlying surface on which the solar module is located. By fixing the first flat part to the other flat part, the spacer can stand on the underlying surface in the region of the outer edge of the first flat part and / or in the region of the outer edge of the other flat part, while the other outer edges of the first flat part and the other outer edges of the other flat part project into the air. Even when used in the solar module system, the spacer moves together with the plug connection arranged thereon, and as a result, it stays in different regions of the outer edges of the partial outer edges of the first and / or the other plane than before, and it is possible to ensure that the plug connection is at a predetermined distance from the underlying surface. The predetermined distance is preferably equal to or greater than 0.2 cm, more preferably 0.5 cm, and even more preferably 1.0 cm.

[0009] The kit for forming the components of the solar module system according to the present invention represents a modular system for producing a solar module system. Such a modular system can be assembled on-site.

[0010] The spacer preferably consists of a first flat part and another flat part. No more components are required to provide the function of the spacer. In the unassembled state, the spacer requires little space and can thus be easily packaged.

[0011] In the assembled state, when the outer edges of the first flat part and the other flat part are joined together in an imaginary manner, the spacer preferably has a spherical outer contour. This means that the first flat part and / or the other flat part is preferably designed in a disc shape and has a circular or oval outer edge.

[0012] In a preferred embodiment, the fixing angle between the plane of the first flat part and the plane of the other flat part is in the range of 75° to 90°. The fixing angle is more preferably in the range of 80° to 90°. The fixing angle is even more preferably in the range of 85° to 90°. The closer the fixing angle is to 90°, the larger the plug groove. The closer the fixing angle is to 90°, the rounder the spherical shape of the outer contour of the spacer formed by the imaginary connection of the outer edges of the first and the other plane parts.

[0013] The fixing device and / or the other fixing device is preferably designed as a mechanical connection device. It is advantageous if they are designed to form a positive connection. This further ensures the simple assembly of the spacer consisting of the first flat part and the other flat part.

[0014] In a preferred embodiment, the fixing device of the first flat part is designed as a groove which is designed to be assembled around a part of the other flat part in the assembled state of the spacer. As an alternative or in addition, the other fixing device of the other flat part is likewise designed as a groove which is designed to be assembled around a part of the first flat part in the assembled state of the spacer. Thus, a simple, easy and permanent fixing of the two flat parts can be achieved without tools and additional components. The two flat parts can be permanently fixed to each other simply by inserting them into each other.

[0015] The flat part and the other flat part preferably have the same design. This results in cost advantages for mass production.

[0016] In a preferred embodiment, the first flat part has an axially symmetric design in its first flat part plane. As an alternative or in addition, the other flat part is likewise axially symmetric in its other flat part plane. If the flat part has a circular outer contour, this results in the formation of a spherical shape of the spacer when the outer edges of the first flat part and the other flat part are imaginarily joined. Optionally, the outer edges of the first flat part and the other flat part can also have a square or rectangular shape. This will result in a cubic or cuboid shape of the spacer.

[0017] In a preferred embodiment, the kit of parts further has a fastening device. The fastening device is designed to permanently fasten the positive plug or the negative plug to the spacer in the state where the device is fastened to the spacer. The corresponding plug can thus be further fixed to the spacer. In addition, this further ensures that the corresponding plug remains in the position provided for it in the plug recess, even if the spacer changes its position due to, for example, external influences and rotates.

[0018] The fastening device is preferably selected from adhesives, clamping devices, adhesives, magnetic devices and / or mechanically acting contact closing fastening devices. All these fastening devices ensure the firm fastening of the positive or negative plug fastened to the spacer in a simple manner.

[0019] The fastening device is preferably designed to be permanently UV-stable, i.e., UV-stable over years and decades. This prevents the fastening device from degrading under the influence of the ultraviolet light contained in sunlight during outdoor use, such that they completely or to a large extent lose their function. The fastening device is preferably made of plastic. The spacer is preferably likewise made of plastic.

[0020] The fastening device is preferably designed as an ultraviolet-stable adhesive. In the sense of the present invention, the adhesive is understood as a device that structurally secures the plug firmly to the spacer. In addition, in addition to the fastening effect, the adhesive ensures that the spacer permanently retains its shape. The fastening device is more preferably designed as a cable tie. The cable tie allows the plug connections of the negative plug and the positive plug to be simply, quickly, and permanently fixed to the spacer. In addition, the cable tie is small and convenient, very cheap as a mass-produced product, and requires little space in the kit of parts and can thus be easily packaged.

[0021] In another preferred embodiment, the first flat part and the fastening device for the plug connection are integrally designed. As an alternative or in addition, another flat part for the plug connection and the fastening device are integrally designed. Thus, another component can be dispensed with.

[0022] The first flat part preferably has at least one cutout that extends in the plane of the first flat part. As an alternative or in addition, the other flat part has at least one other cutout that extends in the plane of the other flat part. Each cutout is preferably designed as an opening in the relevant plane of the flat part. Thereby, material and further production costs can be saved.

[0023] The present invention also relates to a method for producing a solar module system, comprising the following steps:

[0024] - Providing a kit of parts according to one or more of the above-described embodiments,

[0025] - Assembling the first flat part with the other flat part using a fixing device and / or another fixing device to produce an assembled spacer such that the plane of the first flat part and the plane of the other flat part are arranged at a fixed angle and a plug groove is formed between the plane of the first flat part and the plane of the other flat part, the plug groove being at a certain distance from the outer edge of the first flat part and the outer edge of the other flat part,

[0026] - Connecting the positive plug of one solar module among a plurality of solar modules to the negative plug of another solar module among a plurality of other solar modules, thereby forming a plug connection,

[0027] - Arranging the positive plug and the negative plug on the plug groove in the assembled spacer, and

[0028] - Arranging the assembled spacer on a lower surface on which the solar modules are also erected.

[0029] This method can be implemented in a simple manner on site. Compared with solar modules, the spacer can be packaged in an easy and simple way and has a very small weight. Therefore, the spacer is easy to transport and the on-site assembly is simple. Preferably, no tools are required for assembling the spacer.

[0030] After providing the kit of parts, the further method steps can be carried out in any order. The statements made above regarding the kit of parts apply correspondingly to the method of producing a solar module system, and vice versa.

[0031] The step of assembling the first flat part with the other flat part using a fixing device and / or another fixing device is preferably carried out by inserting the first flat part into another fixing device in the form of a groove and / or by inserting the other flat part into the fixing device in the form of a groove.

[0032] In a preferred embodiment, the method further includes the step of fastening a positive plug and / or another negative plug to the spacer by a fastening device. Therefore, here, the fastening device is designed as an independent component used in the production of a solar module system.

[0033] The present invention also relates to the application of a spacer in a solar module system to hold a plug connection at a predetermined distance from a lower surface, wherein the spacer has a first flat part and another flat part, the first flat part spans a first flat part plane having an outer edge of the first flat part, and the other flat part spans another flat part plane having an outer edge of the other flat part. In addition, the first flat part and / or the other flat part has / have a fixing device, and the first flat part and the other flat part can be mounted to each other by the fixing device in such a way that the first flat part plane and the other flat part plane are arranged at a fixed angle, and a plug groove is formed between the first flat part plane and the other flat part plane at a certain distance from the outer edge of the first flat part and the outer edge of the other flat part.

[0034] The statements described regarding the kit of parts of a solar module system and the production method of a solar module system apply correspondingly to the application according to the present invention, and vice versa.

[0035] In the application of a preferred embodiment, the solar module system includes a solar module having a positive cable with a positive plug and a negative cable with a negative plug, and another solar module having another positive cable with another positive plug and another negative cable with another negative plug. The spacer is used to arrange a plug connection between the positive plug and the other negative plug or between the negative plug and the other positive plug on the spacer, so that a predetermined distance between the plug connection and the lower surface is ensured by the spacer.

[0036] The solar module system is preferably designed as a flat roof system, i.e., it is a solar module system installed on a flat roof. BRIEF DESCRIPTION OF THE DRAWINGS

[0037] Preferred exemplary embodiments of the present invention are illustrated by way of example in the drawings and are described in more detail below. In the drawings, the figures are purely schematic and not drawn to scale:

[0038] Figure 1 A plan view showing the use of a spacer in a solar module system;

[0039] Figure 2 Shows Figure 1 An enlarged partial perspective view of the spacer shown;

[0040] Figure 3 Shows Figure 2 Another perspective view of the spacer shown;

[0041] Figure 4 Shows Figures 1 to 3 A plan view of the first flat portion of the spacer shown;

[0042] Figure 5 A plan view showing a kit of parts for a solar module system according to the present invention; and

[0043] Figures 6a to 6e Shows method steps for producing a solar module system according to the present invention. DETAILED DESCRIPTION

[0044] Figure 1 A plan view showing the use of a spacer 1 in a solar module system. The solar module system includes a solar module 2 having a positive cable 21 with a positive plug 22 and a negative cable 23 with a negative plug 24, and another solar module 4 having a positive cable 41 with a positive plug 42 and a negative cable 43 with a negative plug 44. The positive plug 22 of the solar module 2 and the negative plug 44 of the other solar module 4 are connected to each other and arranged on the spacer 1, which ensures a predetermined distance between the plugs 22, 44 and the underlying surface 5 on which the solar modules 2, 4 stand and the underlying surface 5 on which the spacer 1 is located.

[0045] Figure 2 Shows only Figure 1 in a purely schematic manner an enlarged partial perspective view of the spacer 1 shown. Figure 2 The partial view shown is Figure 1 marked as II in

[0046] The positive plug 22 forming one end of the positive electrode cable 21 and the other negative plug 44 forming one end of the other negative electrode cable 43 are arranged on the spacer 1 and connected to each other, thereby forming the desired electrical plug connection.

[0047] The spacer 1 has a first flat portion 11 and another flat portion 12. The first flat portion 11 spans a first flat portion plane having a first flat portion outer edge 111, and the other flat portion 12 spans another flat portion plane having another flat portion outer edge 121. The first flat portion 11 and the other flat portion 12 are mounted to each other by fixing means not visible here, such that the first flat portion plane and the other flat portion plane are arranged at a fixed angle of approximately 90°, and a plug groove (not shown) is formed between the first flat portion plane and the other flat portion plane, and the plug groove is at a certain distance from the first flat portion outer edge 111 and the other flat portion outer edge 121. When the first flat portion outer edge 111 and the other flat portion outer edge 121 are connected imaginarily, the spacer 1 has a spherical outer contour.

[0048] By way of example only, the first flat portion 11 has four cutouts 112 in the form of openings, which extend in the first flat portion plane, and by way of example only, the other flat portion 12 likewise has four other cutouts 122 in the form of openings, which extend in the other flat portion plane.

[0049] The positive plug 22 and the other negative plug 44 form a plug connection and are arranged in the plug groove. The plug groove is formed between the first flat portion 11 and the other flat portion 12, and these two flat portions are fixed to each other by their fixing means. The plugs 22, 44 forming the plug connection are fastened to the spacer 1 at the position of the plug groove by a fastening means 3 in the form of a cable tie.

[0050] Figure 3 It is shown that Figure 2 Another perspective view of the spacer shown. The spacer 1 has a spherical outer contour, and thus, even when there is movement, it ensures that the plugs 22, 44 stay at a predetermined distance from the lower pad surface (not shown). Furthermore, when observed together Figure 2 and 3 it can be seen that the first flat portion 11 and the other flat portion 12 have the same design.

[0051] Figure 4 It is shown that Figures 1 to 3Plan view of the first flat part of the spacer shown and another flat part 12. Since the first flat part 11 and the other flat part 12 preferably have the same design, the reference numerals of the corresponding component features will be mentioned twice below. The first flat part 11 / the other flat part 12 has a first flat part outer edge 111 / another flat part outer edge 121, spanning the first flat part plane / another flat part plane. In addition, it has a fixing device 113 / another fixing device 123 in the form of a groove. The grooves 113, 123 are designed in such a way that in the assembled state of the spacer, they are assembled around a part of the corresponding flat part (not shown). In addition, the first flat part 11 / the other flat part 12 has an axisymmetric design in its first flat part plane / another flat part plane along the groove-shaped first fixing device 113 / another fixing device 123.

[0052] Figure 5 A plan view of a kit according to the present invention is shown. The kit has a solar module 2 and a spacer 1. The solar module 2 has a junction box 25, a positive cable 21 with a positive plug 22, and a negative cable 23 with a negative plug 24. The positive cable 21 and the negative cable 23 are each connected to the junction box 25 at one end and have a positive plug 22 and a negative plug 24 respectively at their other ends. Here, the spacer 1 is shown in the form of its individual components in an unassembled state. It has a first flat part 11 and another flat part 12. The first flat part 11 has a first flat part outer edge 111, spanning the first flat part plane. By way of example only, it has four cutouts 112 in the form of openings and a fixing device 113 in the form of a groove. The other flat part 12 has another flat part outer edge 121, spanning the other flat part plane. By way of example only, it also has four cutouts 122 in the form of openings and another fixing device 123 in the form of a groove. The first flat part 11 and the other flat part 12 have the same design. The spacer 1 can be assembled by introducing and / or inserting a part of the first flat part 11 into the groove 123 and at the same time introducing and / or inserting a part of the other flat part 12 into the groove 113.

[0053] Figures 6a to 6e A method for producing a solar module system according to the present invention is shown, and a plan view of the kit in each case is shown.

[0054] Figure 6a One step of providing two kits is shown, each corresponding to Figure 5The shown set of components. One set of components has a solar module 2 and an unassembled spacer 1, while the other set of components has another solar module 4 and another spacer 1. The solar module 2 has a junction box 25, and the junction box 25 is connected to a positive plug 22 through a positive cable 21 and to a negative plug 24 through a negative cable 23, while the solar module 4 has a junction box 45, and the junction box 45 is connected to a positive plug 42 through a positive cable 21 and to a negative plug 44 through a negative cable 43.

[0055] The spacer 1 corresponds to Figure 5 the shown spacer 1. Figures 6b to 6e Each of only shows one spacer 1, and for the sake of clarity, the other spacer 1 is omitted below.

[0056] Figure 6b Shows another step of assembling the first flat part 11 and another flat part 12 using a fixing device 113 and another fixing device 123 to produce an assembled spacer 1 such that the plane of the first flat part and the plane of the other flat part are arranged at a fixed angle of 90°, and a plug groove is formed between the plane of the first flat part and the plane of the other flat part, and the plug groove is at a certain distance from the outer edge 111 of the first flat part and the outer edge 121 of the other flat part.

[0057] Figure 6c Shows another step of connecting the positive plug 22 of the solar module 2 to the other negative plug 44 of the other solar module 4, thus forming a plug connection.

[0058] Figure 6d Shows another step of arranging the positive plug 22 and the other negative plug 44 in the plug groove of the assembled spacer 1 and arranging the assembled spacer 1 on the lower pad surface (not shown) on which the solar modules 2 and 4 also stand. For the sake of clarity, the corresponding cutouts of the flat parts 11 and 12 are not shown.

[0059] Figure 6e Shows another step of permanently fastening the positive plug 22 and the other negative plug 44 to the spacer 1 by means of a fastening device 3 in the form of a cable tie.

[0060] List of reference numerals:

[0061] 1 Spacer

[0062] 11 First flat part

[0063] 111 Outer edge of the first flat part

[0064] 112 Cutout

[0065] 113 Fixing device

[0066] 12 Another flat part

[0067] 121 Outer edge of another flat part

[0068] 122 Another incision

[0069] 123 Another fixing device

[0070] 2 Solar module

[0071] 21 Positive cable

[0072] 22 Positive plug

[0073] 23 Negative cable

[0074] 24 Negative plug

[0075] 25 Junction box

[0076] 3 Fastening device

[0077] 4 Another solar module

[0078] 41 Positive cable

[0079] 42 Another positive plug

[0080] 43 Negative cable

[0081] 44 Negative plug

[0082] 45 Another junction box

[0083] 5 Lower surface

Claims

1. A kit of parts for a solar module system, comprising: A solar module (2), the solar module (2) having a positive cable (21) with a positive plug (22) and a negative cable (23) with a negative plug (24). A spacer (1), wherein the spacer (1) has a first flat part (11) and another flat part (12), the first flat part (11) being a monolithic and independent component spanning a first flat part plane with a first flat part outer edge (111), and the other flat part (12) being a monolithic and independent component spanning another flat part plane with another flat part outer edge (121). Wherein the first flat part (11) has a fixing device (113) and / or the other flat part (12) has another fixing device (123), and the first flat part (11) and the other flat part (12) can be mounted to each other in such a way that the first flat part plane is arranged at a fixed angle relative to the other flat part plane, and a plug groove is formed between the first flat part plane and the other flat part plane at a certain distance from the first flat part outer edge (111) and the other flat part outer edge (121), wherein the positive plug (22) and / or the negative plug (24) are arranged in the plug groove on the spacer (1). Wherein the fixing device (113) of the first flat part (11) is designed as a groove, the groove being designed to assemble around a part of the other flat part (12) in the assembled state of the spacer (1), and / or the other fixing device (123) of the other flat part (12) is designed as a groove, the groove being designed to assemble around a part of the first flat part (11) in the assembled state of the spacer (1).

2. The kit of parts according to claim 1, characterized in that, The fixed angle is in the range of 75° to 90°.

3. The kit of parts according to claim 1 or 2, characterized in that, The fixing device (113) and / or the other fixing device (123) are designed as mechanical connection devices.

4. The kit of parts according to claim 1 or 2, characterized in that, The flat part (11) and the other flat part (12) have the same design.

5. The kit of parts according to claim 1 or 2, characterized in that, The first flat part (11) has an axisymmetric design in its first flat part plane, and / or the other flat part (12) has an axisymmetric design in its other flat part plane.

6. The kit of parts according to claim 1, characterized in that, Also included is a fastening device (3), wherein the fastening device (3) is designed to fasten the positive plug (22) or the negative plug (24) to the spacer (1) in a state where the device is fastened to the spacer (1).

7. The kit of parts according to claim 6, characterized in that, The fastening device (3) is selected from the group consisting of adhesives, magnetic devices, and / or contact closing fastening devices with mechanical action.

8. The kit of parts according to claim 6 or 7, characterized in that, The fastening device (3) is designed as a cable tie.

9. The kit of parts according to claim 6, characterized in that, The first flat part (11) and the fastening device (3) are integrally designed, and / or the other flat part (12) and the fastening device (3) are integrally designed.

10. The kit of parts according to claim 1 or 2, characterized in that, The first flat part (11) has at least one cutout (112) extending in the plane of the first flat part, and / or the other flat part (12) has at least one other cutout (122) extending in the plane of the other flat part.

11. The kit of parts according to claim 2, characterized in that, The fixed angle is in the range of 80° to 90°.

12. The kit of parts according to claim 11, characterized in that, The fixed angle is in the range of 85° to 90°.

13. The kit of parts according to claim 7, characterized in that, The adhesive is an ultraviolet-stable adhesive, and the contact-closure fastening device with mechanical action is an ultraviolet-stable clamping device.

14. A method for producing a solar module system, comprising the following steps: Provide a plurality of sets of components according to any one of the preceding claims. Use the fixing device (113) and / or the other fixing device (123) to assemble the first flat part (11) and the other flat part (12) to produce an assembled spacer (1), such that the plane of the first flat part and the plane of the other flat part are arranged at a fixed angle, and a plug groove is formed between the plane of the first flat part and the plane of the other flat part, the plug groove being at a certain distance from the outer edge (111) of the first flat part and the outer edge (121) of the other flat part, connect the positive plug (22) of one solar module (2) in the solar module (2) to the other negative plug (44) of one solar module (4) in another solar module (4), thereby forming a plug connection. Arrange the positive plug (22) and the other negative plug (44) in the plug groove on the assembled spacer (1), and Arrange the assembled spacer (1) on the lower surface (5), and the solar modules also stand on the lower surface (5).

15. The method according to claim 14, characterized in that, It further includes the step of fastening the positive plug (22) and / or the other negative plug (44) to the spacer (1) through the fastening device (3).

16. An application of a spacer (1) in a solar module system for holding a plug connector at a predetermined distance from a lower surface (5), wherein, The spacer (1) has a first flat part (11) and another flat part (12), the first flat part is a single-piece independent component and spans a plane of the first flat part with an outer edge of the first flat part, the other flat part is a single-piece independent component and spans a plane of the other flat part with an outer edge of the other flat part. Wherein, the first flat part (11) and / or the other flat part (12) has a fixing device (113), and the first flat part (11) and the other flat part (12) are installed with each other such that the plane of the first flat part is arranged at a fixed angle with the plane of the other flat part, and a plug groove is formed between the plane of the first flat part and the plane of the other flat part at a certain distance from the outer edge (111) of the first flat part and the outer edge (121) of the other flat part, wherein the positive plug (22) and / or the negative plug (24) are arranged in the plug groove on the spacer (1). Wherein, the fixing device (113) of the first flat portion (11) is designed as a groove, and the groove is designed to be assembled around a part of the other flat portion (12) in the assembled state of the spacer (1), and / or the other fixing device (123) of the other flat portion (12) is designed as a groove, and the groove is designed to be assembled around a part of the first flat portion (11) in the assembled state of the spacer (1).

17. The application according to claim 16, wherein, The solar module system includes a solar module (2) having a positive cable (21) with a positive plug (22) and a negative cable (23) with a negative plug (24), and another solar module (4) having another positive cable (41) with another positive plug (42) and another negative cable (43) with another negative plug (44), and the spacer (1) is used to arrange a plug connection between the positive plug (22) and the other negative plug (44) or between the negative plug (24) and the other positive plug (42) on the spacer, whereby a predetermined distance between the plug connection and the underlying surface (5) is ensured by the spacer (1).

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