Pin pressing device for photovoltaic welding

Abstract

The utility model discloses a pin pressing device for photovoltaic welding, which relates to the technical field of pin pressing and comprises a workbench, a mounting shell arranged on the top of the workbench through a support plate, a sliding plate arranged on the mounting shell on the right side through a sliding rod and a threaded rod, a cavity arranged in the sliding plate, and a plurality of electric push rods uniformly arranged in the cavity. A plurality of ejector pins are evenly arranged at the bottom of the lifting plate arranged at the tail end of the electric push rod telescopic arm, a first bevel gear is arranged in the left mounting shell through a mounting shaft, and a second bevel gear is further arranged on the threaded rod through key connection. Under the action of the electric push rod and the threaded rod, accurate control and adjustment of the needle pressing position are achieved, the self-locking function of the worm and gear is matched, the pressing and fixing quality of the thimble on the welding strip is guaranteed, under the action of the protective pad, abrasion and damage possibly generated when the thimble is in direct contact with the welding strip are effectively reduced, and the service life of the thimble is prolonged. And the service life of the pressing needle is prolonged, and the overall quality and reliability of the photovoltaic module can be improved.

Description

Technical Field

[0001] The utility model relates to the technical field of needle pressing, in particular to a needle pressing device for photovoltaic welding. Background Technique

[0002] Photovoltaic power generation is a technology that directly converts light energy into electrical energy by using the photovoltaic effect at the semiconductor interface. It mainly consists of three major parts: solar panels, controllers, and inverters. The main components are composed of electronic components. Solar cells can be encapsulated and protected after being connected in series to form large-area solar cell modules. Together with components such as power controllers, a photovoltaic power generation device is formed. During photovoltaic welding, infrared welding is usually used. Infrared welding is a welding method that uses a non-contact heating method: the surfaces of two parts to be welded can quickly condense under the illumination of infrared rays, and then adhere to each other after pressing and cooling, obtaining extremely high welding strength. When infrared welding the battery string of a photovoltaic module, a needle press is needed to press the welding tape so that the welding tape is welded in the appropriate position during welding, and to ensure that the solder fits the surface electrode of the battery, ensuring the welding effect. During photovoltaic welding, a needle press needs to move downward to press the battery slice, and after welding is completed, it needs to be reset.

[0003] In the prior art, most needle press welding devices have some problems in actual application, such as unstable needle press position, easy displacement of the spring resulting in skewed needle press, uneven pressure during the welding process, etc. These problems will seriously affect the welding quality, leading to problems such as poor welding, virtual welding, and chip cracking, thereby affecting the overall performance and lifespan of the photovoltaic module. Therefore, we propose a needle pressing device for photovoltaic welding. Content of the Utility Model

[0004] The purpose of the utility model is to provide a needle pressing device for photovoltaic welding to solve the problems raised in the above background technique.

[0005] To achieve the above purpose, the utility model provides the following technical solution:

[0006] A needle pressing device for photovoltaic welding includes a workbench. A number of support plates are evenly arranged on the top of the workbench. An installation shell is arranged on the top of the support plate. A sliding rod is arranged inside the right installation shell. A sliding plate is slidably arranged on the sliding rod. A cavity is arranged inside the sliding plate. A number of electric push rods are evenly arranged in the cavity. The end of the telescopic arm of the electric push rod is provided with a lifting plate, and a number of top needles are evenly arranged at the bottom of the lifting plate. A threaded rod is also rotatably arranged inside the left installation shell. The threaded rod penetrates through the sliding plate and is threadedly connected to the sliding plate. A mounting shaft is also rotatably arranged at the front side inside the left installation shell. A first bevel gear is arranged on the mounting shaft through key connection. A second bevel gear is also arranged on the threaded rod through key connection. The second bevel gear meshes with the first bevel gear.

[0007] As a further solution of the utility model: A worm gear is also arranged on the installation shaft through key connection, and a worm is also rotatably arranged on the left installation shell, and the worm is meshed with the worm gear.

[0008] As a further solution of the utility model: A rotating handle is also arranged at the outer end of the worm.

[0009] As a further solution of the utility model: A sliding groove is arranged on the inner wall of the sliding plate, and a sliding block matched with the sliding groove is arranged on the side wall of the lifting plate.

[0010] As a further solution of the utility model: A protective pad is arranged at the bottom of the thimble.

[0011] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0012] 1. The combination of the electric push rod and the threaded rod realizes the precise control and adjustment of the position of the pressing needle. The electric push rod can precisely control the up and down movement of the lifting plate and the thimble, ensuring the stability and uniformity of the pressure during the welding process. The threaded connection between the threaded rod and the sliding plate, combined with the transmission mechanism of the installation shaft, the first bevel gear, the second bevel gear, and the worm and worm gear, enables the sliding plate to move smoothly and precisely in the horizontal direction, thus easily aligning the thimble with the position of the welding tape, improving the accuracy and efficiency of welding. In addition, the worm and worm gear have a self-locking function, ensuring the pressing and fixing quality of the thimble on the welding tape;

[0013] 2. Under the action of the protective pad, the wear and damage that may occur when the thimble directly contacts the welding tape are effectively reduced, protecting the integrity of the welding tape and extending the service life of the pressing needle, which helps to improve the overall quality and reliability of the photovoltaic module. Description of the Drawings

[0014] Figure 1 It is a schematic structural diagram of an embodiment of the utility model.

[0015] Figure 2 It is a schematic structural diagram of the inside of the left installation shell in the embodiment of the utility model.

[0016] Figure 3 It is a schematic structural diagram of the inside of the sliding plate in the embodiment of the utility model.

[0017] Figure 4 It is a schematic structural diagram of part A in the embodiment of the utility model.

[0018] Annotation of reference numerals: 1, workbench; 2, support plate; 3, mounting shell; 4, slide bar; 5, slide plate; 6, threaded rod; 7, electric push rod; 8, lifting plate; 9, thimble; 10, protective pad; 11, mounting shaft; 12, first bevel gear; 13, second bevel gear; 14, worm gear; 15, worm; 16, rotating handle. Detailed implementation mode

[0019] In the following embodiments, the present invention will be described in detail with reference to the accompanying drawings. In the drawings or descriptions, similar or identical parts are denoted by the same reference numerals. And in actual applications, the shapes, thicknesses or heights of the components can be enlarged or reduced. The embodiments listed in the present invention are only used to illustrate the present invention, and are not used to limit the scope of the present invention. Any obvious modification or change made to the present invention does not depart from the spirit and scope of the present invention.

[0020] Embodiment

[0021] Please refer to Figures 1 to 4 , in the embodiment of the present invention, a needle pressing device for photovoltaic welding includes a workbench 1. A plurality of support plates 2 are evenly arranged on the top of the workbench 1. A mounting shell 3 is arranged on the top of the support plate 2. A slide bar 4 is arranged inside the right mounting shell 3. A slide plate 5 is slidably arranged on it. A cavity is arranged inside the slide plate 5. A plurality of electric push rods 7 are evenly arranged in the cavity. The end of the telescopic arm of the electric push rod 7 is provided with a lifting plate 8. A plurality of thimbles 9 are evenly arranged at the bottom of the lifting plate 8. A protective pad 10 is arranged at the bottom of the thimble 9. In the actual use process, when it is necessary to press the welding tape, the staff moves the slide plate 5 and moves the slide plate 5 directly above the welding tape. Then, the electric push rod 7 is used to drive the lifting plate 8 to move downward. When the protective pad 10 contacts the welding tape, the welding tape is pressed. In addition, under the action of the protective pad 10, the situation of damage caused by the protective pad 10 and the welding tape can be reduced, thus ensuring the use efficiency of the device. A chute is arranged on the inner wall of the slide plate 5. A slider cooperating with the chute is arranged on the side wall of the lifting plate 8. Under the action of the slider and the chute, the lifting efficiency of the lifting plate 8 is ensured.

[0022] A threaded rod 6 is also rotatably arranged inside the left mounting shell 3. The threaded rod 6 penetrates through the slide plate 5 and is threadedly connected to the slide plate 5. At this time, rotating the threaded rod 6 can drive the slide plate 5 to move back and forth on the mounting shell 3, thus facilitating the movement of the slide plate 5, and further moving the thimble 9 above the welding tape, thus facilitating the pressing and fixing of the welding tape.

[0023] On the front side inside the left installation shell 3, a mounting shaft 11 is also rotatably arranged. A first bevel gear 12 is arranged on the mounting shaft 11 by key connection. A second bevel gear 13 is also arranged on the threaded rod 6 by key connection. The second bevel gear 13 meshes with the first bevel gear 12. At this time, rotating the mounting shaft 11 can drive the threaded rod 6 to rotate through the first bevel gear 12 and the second bevel gear 13, so as to adjust the position of the slide plate 5.

[0024] A worm gear 14 is also arranged on the mounting shaft 11 by key connection. A worm 15 is rotatably arranged on the left installation shell 3. The worm 15 meshes with the worm gear 14. At this time, rotating the worm 15 can drive the mounting shaft 11 to rotate through the worm gear 14, so as to drive the threaded rod 6 to rotate, and further better adjust the position of the slide plate 5, so that the ejector pin 9 can better press and fix the welding tape. In addition, because the worm gear 14 and the worm 15 have a self-locking function, the position of the slide plate 5 after adjustment can be fixed, thus ensuring the pressing and fixing quality of the ejector pin 9 for the welding tape.

[0025] A handle 16 is arranged at the outer end of the worm 15. By rotating the handle 16, the worm 15 can be driven to rotate, and further better adjust the position of the slide plate 5.

[0026] During actual use, first of all, the workbench 1 serves as the support platform of the whole device. The uniformly distributed support plates 2 on it firmly support the installation shell 3. The installation shell 3 is divided into left and right sides, and each side is designed with different functional components to meet the pressing and fixing requirements of the welding tape. Inside the right installation shell 3, the slide bar 4 serves as a guiding mechanism, allowing the slide plate 5 to slide smoothly on it. When pressing the welding tape is required, the operator rotates the handle 16, and drives the first bevel gear 12 to rotate by using the worm 15, the worm gear 14 and the mounting shaft 11, so that the second bevel gear 13 drives the threaded rod 6 to rotate. At this time, the rotation of the threaded rod 6 will be converted into the linear movement of the slide plate 5 on the slide bar 4. In this way, the slide plate 5 can be accurately moved directly above the welding tape. Next, the electric push rod 7 inside the slide plate 5 starts to work. The telescopic arm of the electric push rod 7 pushes the lifting plate 8 downward until the ejector pin 9 at the bottom of the lifting plate 8 contacts the surface of the welding tape through the protective pad 10. The design of the protective pad 10 effectively reduces the damage that may be caused when the ejector pin 9 directly contacts the welding tape, protecting the integrity of the welding tape. Through the continuous work of the electric push rod 7, the ejector pin 9 applies sufficient pressure to press and fix the welding tape, providing stable support for subsequent operations. During the whole process, the self-locking function of the worm gear 14 and the worm 15 ensures that the slide plate 5 can remain stable after being adjusted to the appropriate position and will not be displaced due to external vibration or impact, thus ensuring the pressing and fixing quality of the welding tape. The setting of the handle 16 provides a convenient manual operation method for the user, facilitating precise adjustment of the worm 15 according to actual needs.

[0027] For those skilled in the art, it is obvious that the present utility model is not limited to the details of the above-mentioned exemplary embodiments, and the present utility model can be implemented in other specific forms without departing from the spirit or basic characteristics of the present utility model. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-limiting. The scope of the present utility model is defined by the appended claims rather than the above description. Therefore, all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be embraced within the present utility model. Any reference signs in the claims should not be construed as limiting the claims involved.

[0028] In addition, it should be understood that although this specification is described in terms of embodiments, not every embodiment only contains an independent technical solution. This narrative manner of the specification is only for clarity. Those skilled in the art should regard the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A needle pressing device for photovoltaic welding, comprising a workbench (1), characterized in that, A number of support plates (2) are evenly arranged on the top of the workbench (1). An installation shell (3) is arranged on the top of the support plate (2). A slide bar (4) is arranged inside the installation shell (3) on the right side. A slide plate (5) is slidably arranged on the slide bar (4). A cavity is arranged inside the slide plate (5). A number of electric push rods (7) are evenly arranged in the cavity. The end of the telescopic arm of the electric push rod (7) is provided with a lifting plate (8). A number of thimble (9) are evenly arranged at the bottom of the lifting plate (8). A threaded rod (6) is also rotatably arranged inside the installation shell (3) on the left side. The threaded rod (6) penetrates through the slide plate (5) and is threadedly connected with the slide plate (5). An installation shaft (11) is also rotatably arranged on the front side inside the installation shell (3) on the left side. A first bevel gear (12) is arranged on the installation shaft (11) by key connection. A second bevel gear (13) is also arranged on the threaded rod (6) by key connection. The second bevel gear (13) meshes with the first bevel gear (12).

2. The pin pressing device for photovoltaic welding according to claim 1, characterized in that, A worm gear (14) is also arranged on the installation shaft (11) by key connection. A worm (15) is also rotatably arranged on the installation shell (3) on the left side. The worm (15) meshes with the worm gear (14).

3. The needle pressing device for photovoltaic welding according to claim 2, wherein, A rotating handle (16) is also arranged at the outer end of the worm (15).

4. The needle pressing device for photovoltaic welding according to claim 1, characterized in that, A chute is arranged on the inner wall of the slide plate (5). A slider for cooperating with the chute is arranged on the side wall of the lifting plate (8).

5. The needle pressing device for photovoltaic welding according to claim 1, wherein, A protective pad (10) is arranged at the bottom of the thimble (9).

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