Junction box mounting mechanism

Abstract

The utility model discloses a junction box installation mechanism which comprises a machine base, a pressing assembly used for flattening a junction box, a clamping assembly used for clamping or loosening the junction box in the first direction, a pusher dog assembly used for smoothing the portion, penetrating out of the junction box, of a bus bar, and a restoration assembly. The restoration assembly comprises a reference module, a restoration module and a restoration power device. The reference module and the restoration module are distributed at the two ends of the junction box in the second direction perpendicular to the first direction. On one hand, on the basis of the first direction and the second direction which are perpendicular to each other, restoration is carried out in the second direction through the reference module and the restoration module, the clamping assembly carries out clamping in the first direction so as to improve the clamping position precision of the junction box, and it is ensured that the junction box, the pusher dog assembly and a bus bar are accurately aligned; the installation precision of the junction box and the flattening success rate of the bus bar are effectively improved; on the other hand, the structure is simple and reliable, and implementation cost is low.

Description

Technical Field

[0001] This utility model belongs to the field of photovoltaic technology, and in particular relates to a junction box installation mechanism. Background Technology

[0002] A typical photovoltaic module (single-glass or double-glass) consists of an upper glass cover, solar cells, a lower base plate, and a junction box mounted on the upper glass cover, arranged from top to bottom.

[0003] Currently, the industry mainly uses robotic arms to complete the two processes of junction box installation and busbar smoothing. For example, Chinese patent CN222133999U discloses a junction box installation gripper mechanism, which includes a mounting plate, a pressure plate elastically floating below the mounting plate for pressing the junction box surface, a first cylinder fixed on the upper surface of the mounting plate, a pair of grippers driven by the first cylinder to move left and right, a second cylinder fixed on the lower surface of the mounting plate, and a pair of lead wire prying claws driven by the second cylinder to move back and forth through the pressure plate.

[0004] However, in actual installation, the junction box is prone to positional deviation when it is transported to the preset loading position due to external force. The gripper cannot guarantee the clamping position accuracy on the junction box, which affects the installation accuracy of subsequent junction boxes. As a result, the success rate of the lead wires of the busbar on the photovoltaic module passing through the junction box and being accurately smoothed by the claw is low. Utility Model Content

[0005] The technical problem to be solved by this utility model is to overcome the shortcomings of the prior art and provide an improved junction box installation mechanism.

[0006] To solve the above technical problems, the present invention adopts the following technical solution:

[0007] A junction box installation mechanism includes a base, a pressing component for flattening the junction box, a clamping component for clamping or releasing the junction box in a first direction, and a claw component for smoothing the portion of the busbar protruding from the junction box. The installation mechanism also includes a alignment component, which includes a reference module, an alignment module, and an alignment power unit. The reference module and the alignment module are distributed at both ends of the junction box in a second direction perpendicular to the first direction, and the actuating end of the claw component is located between the reference module and the alignment module. When the pressing component flattens the junction box, the alignment power unit drives the alignment module to move towards the reference module and causes the junction box to abut against the reference module. As the junction box aligns with the installation position on the photovoltaic module, the busbar simultaneously protrudes from the junction box and aligns with the actuating end.

[0008] Preferably, the reference module and the correction module each include an abutment section extending along a first direction and a connecting section that bends upward from one end of the abutment section to avoid the pawl assembly in a second direction. The reference module is fixedly connected to the base via the connecting section, and the correction module is connected to the correction power unit via the connecting section. During correction, both ends of the junction box are respectively in contact with the inner wall surface of the corresponding abutment section. This is to ensure that the busbar is smoothed while the junction box is in the correction state, preventing positional displacement of the junction box during the smoothing action.

[0009] Preferably, the contact sections of the reference module and the correction module are aligned in the second direction. This maintains the force balance of the junction box in the second direction.

[0010] Preferably, the pressing assembly includes two pressure plates spaced apart in a first direction and a plurality of elastic elements connected between each pressure plate and the base, wherein a limiting area is formed between the two pressure plates and the clamping assembly is disposed within the limiting area.

[0011] Specifically, each pressure plate is a U-shaped plate with its opening facing the clamping assembly, and multiple elastic elements are distributed on opposite sides of each U-shaped plate. This achieves limiting while providing space for the movement of the clamping assembly, improving the structural compactness; at the same time, based on the U-shaped pressure plates, a pressing area is formed around the clamping part of the clamping assembly on the junction box, improving the clamping position accuracy.

[0012] Preferably, the clamping assembly includes two clamping arms spaced apart along a first direction and a clamping power unit that drives the two clamping arms to move toward or away from each other, wherein the actuating end is synchronously located between the two clamping arms.

[0013] Specifically, the claw assembly includes two claws spaced apart along a second direction and a smoothing power unit fixed on the base, wherein the smoothing power unit drives the two claws to move away from each other along the second direction to smooth the busbar.

[0014] Furthermore, the two claws are symmetrically arranged, and each claw includes an L-shaped claw body and a connecting module connecting the claw body and the output end of the smoothing power unit. One end of the claw body faces vertically downward and forms the actuating end. A clearance space is formed between the claw body, the smoothing power unit, and the connecting module. The clamping power unit passes through the clearance space and is fixed to the base. Here, the structure is simple and easy to install and implement.

[0015] Preferably, the mounting mechanism further includes grippers disposed on the base for holding the coil on the junction box; and / or, the mounting mechanism further includes a detection camera disposed on the base for locating the position of the busbar on the photovoltaic module.

[0016] In addition, the installation mechanism includes a robotic arm that drives the lifting and rotating motion of the base. This allows for flexible transfer and installation of junction boxes between the loading and installation stations.

[0017] Due to the implementation of the above technical solution, this utility model has the following advantages compared with the prior art:

[0018] Existing technologies often suffer from positional deviations when junction boxes are transported to the preset loading position due to external forces. The grippers cannot guarantee precise clamping accuracy on the junction box, affecting the installation accuracy of subsequent junction boxes and resulting in a low success rate for the busbar leads on the photovoltaic module to pass through the junction box and be accurately smoothed by the grippers. This application addresses these shortcomings by comprehensively designing the junction box installation mechanism. With this mechanism, during material handling, a pressing component flattens the junction box downwards, with the reference module and alignment module positioned at opposite ends of the junction box in a second direction. Then, an alignment power unit drives the alignment module towards the reference module, causing the junction box to abut against it, thus completing the alignment. Next, a clamping component clamps the junction box in a first direction perpendicular to the second direction. Finally, as the junction box aligns with its mounting position on the photovoltaic module (i.e., the insertion port on the junction box aligns with the lead end of the busbar), the busbar simultaneously passes through the junction box and aligns with the lever end. Therefore, compared with the prior art, this utility model is based on the first and second perpendicular directions, and uses a reference module and a correction module to perform correction in the second direction and a clamping component to perform clamping in the first direction to improve the clamping position accuracy of the junction box, ensuring that the junction box, the claw assembly and the busbar are accurately aligned, effectively improving the installation accuracy of the junction box and the success rate of smoothing the busbar; on the other hand, it has a simple and reliable structure and low implementation cost. Attached Figure Description

[0019] Figure 1 This is a three-dimensional structural diagram of the junction box mounting mechanism in this embodiment;

[0020] Figure 2 for Figure 1 A magnified schematic diagram of a local structure;

[0021] Figure 3 for Figure 2 Enlarged schematic diagram of the middle clamping component;

[0022] Figure 4 for Figure 2 Enlarged schematic diagram of the structure of the smoothing component;

[0023] Figure 5 for Figure 2 Enlarged schematic diagram of a portion of the rectifier module;

[0024] The components are as follows: 1. Base; 2. Pressing assembly; 20. Pressure plate; 21. Elastic element; q. Limiting zone; 3. Clamping assembly; 30. Clamping arm; 31. Clamping power unit; 4. Claw assembly; 40. Claw; 400. Claw body; 401. Connecting module; 41. Smoothing power unit; 5. Alignment assembly; 50. Reference module; 51. Alignment module; d1. Contact section; d2. Connecting section; 52. Alignment power unit; 6. Clamping jaw; 7. Detection camera. Detailed Implementation

[0025] To make the above-mentioned objects, features, and advantages of this utility model more apparent and understandable, the present utility model will be described in detail below with reference to the accompanying drawings and specific embodiments. Many specific details are set forth in the following description to provide a full understanding of the present utility model. However, the present utility model can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of the present utility model. Therefore, the present utility model is not limited to the specific embodiments disclosed below.

[0026] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0027] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this utility model, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0028] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0029] In utility models, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0030] It should be noted that when an element is referred to as being "fixed to" or "set on" another element, it can be directly on the other element or there may be an intervening element. When an element is considered to be "connected to" another element, it can be directly connected to the other element or there may be an intervening element. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only possible implementation.

[0031] like Figures 1 to 5 As shown, the junction box mounting mechanism of this embodiment includes a base 1, a pressing component 2, a clamping component 3, a claw component 4, and a straightening component 5, wherein a first direction and a second direction that are perpendicular to each other are defined.

[0032] Specifically, the pressing component 2, clamping component 3, claw component 4, and alignment component 5 are all mounted on the base 1. The mounting mechanism in this embodiment also includes a robotic arm. The base 1 is mounted on the movable end of the robotic arm, and the robotic arm drives the base 1 to lift and rotate to flexibly transfer and install the junction box between the loading station and the installation station. The robotic arm can be any conventional robotic arm, which will not be elaborated here.

[0033] In this example, the pressing component 2 is used to press the junction box down and includes two pressure plates 20 spaced apart in the first direction and a plurality of elastic members 21 connected between each pressure plate 20 and the base 1, wherein a limiting area q is formed between the two pressure plates 20 and the clamping component 3 is disposed in the limiting area q.

[0034] In some specific embodiments, each pressure plate 20 is a U-shaped plate with its opening facing the clamping assembly 3, and the multiple elastic elements 21 are divided into two groups, with each group having four elastic elements distributed on opposite sides of each U-shaped plate, wherein each elastic element 21 is a spring. Here, while achieving limiting, it can also provide space to satisfy the movement of the clamping assembly, improving the structural compactness; at the same time, based on the U-shaped pressure plates, a pressing area is formed around the clamping part of the clamping assembly on the junction box, improving the clamping position accuracy.

[0035] In this example, the clamping assembly 3 clamps or releases the junction box in a first direction and includes two clamping arms 30 spaced apart along the first direction and a clamping power unit 31 that drives the two clamping arms 30 to move toward or away from each other. The clamping power unit 31 is any conventional cylinder, and the clamping end of each clamping arm 30 extends along a second direction.

[0036] In this example, the claw assembly 4 is used to smooth the part of the busbar that extends out of the junction box, and includes two claws 40 spaced apart along the second direction and a smoothing power unit 41 fixed on the base 1, wherein the smoothing power unit 41 is a cylinder and drives the two claws 40 to move away from each other along the second direction to smooth the busbar.

[0037] In some specific embodiments, two claws 40 are symmetrically arranged, and each claw 40 includes an L-shaped claw body 400 and a connecting module 401 connecting the claw body 400 and the output end of the smoothing power unit 41. One end of the claw body 400 is vertically downward and forms a toggle end, which is simultaneously located between the two clamping arms 30. A clearance space is formed between the claw body 400, the smoothing power unit 41, and the connecting module 401. The clamping power unit 31 passes through the clearance space and is fixed on the base 1. Here, the structure is simple and easy to install and implement.

[0038] In this example, the correction component 5 includes a reference module 50, a correction module 51, and a correction power unit 52. The reference module 50 and the correction module 51 are distributed at both ends of the junction box in the second direction, and the actuating end of the pawl assembly 4 is located between the reference module 50 and the correction module 51. When the pressing component 2 flattens the junction box, the correction power unit 52 drives the correction module 51 to move towards the reference module 50 and drives the junction box to abut against the reference module 50. As the junction box aligns with the installation position on the photovoltaic module, the busbar can simultaneously pass through the junction box and align with the actuating end of the pawl assembly 4.

[0039] In some specific embodiments, the reference module 50 and the correction module 51 each include an abutment section d1 extending along a first direction and a connecting section d2 that bends upward from one end of the abutment section d1 to avoid the pawl assembly 5 in a second direction. The reference module 50 is fixedly connected to the base 1 from the connecting section d2, and the correction module 51 is connected to the correction power unit 52 from the connecting section. During correction, both ends of the junction box are respectively in contact with the inner wall surface of the corresponding abutment section d1. The correction power unit 52 is a cylinder. This is to facilitate the smoothing of the busbar while keeping the junction box in the correction state and to avoid positional displacement of the junction box during the smoothing action.

[0040] Meanwhile, the contact sections d1 of the reference module 50 and the correction module 51 are aligned in the second direction. Here, the junction box is kept balanced by forces in the second direction.

[0041] In addition, the installation mechanism of this embodiment also includes a gripper 7 mounted on the base 1 for holding the coil on the junction box, and a detection camera 8 mounted on the base 1 for locating the position of the busbar on the photovoltaic module.

[0042] In summary, with this installation mechanism, during material handling, the junction box is pressed down and flattened by the pressing component, with the reference module and the alignment module positioned at opposite ends of the junction box in the second direction. Then, the alignment power unit drives the alignment module to move towards the reference module and causes the junction box to abut against the reference module, thus completing the alignment of the junction box. Next, the clamping component clamps the junction box in the first direction perpendicular to the second direction. Finally, as the junction box aligns with the installation position on the photovoltaic module (i.e., the insertion port on the junction box aligns with the lead-out end of the busbar), the busbar simultaneously passes through the junction box and aligns with the toggle end. Therefore, compared with the prior art, this utility model has several advantages. First, it is based on the first and second perpendicular directions, and uses a reference module and a correction module to perform correction in the second direction and a clamping component to perform clamping in the first direction to improve the clamping position accuracy of the junction box. This ensures that the junction box, the claw assembly, and the busbar are precisely aligned, effectively improving the installation accuracy of the junction box and the success rate of busbar smoothing. Second, it has a simple and reliable structure with low implementation cost. Third, it facilitates the smoothing of the busbar while keeping the junction box in the corrected state, avoiding positional displacement of the junction box during the smoothing action. Fourth, while achieving limiting, it also provides space to accommodate the movement of the clamping component, improving the compactness of the structure. At the same time, based on the U-shaped pressure plate, a pressing area is formed around the clamping part of the clamping component on the junction box, improving the clamping position accuracy.

[0043] The present utility model has been described in detail above, with the aim of enabling those skilled in the art to understand its contents and implement it. However, this description should not be construed as limiting the scope of protection of the present utility model. All equivalent changes or modifications made in accordance with the spirit and essence of the present utility model should be included within the scope of protection of the present utility model.

Claims

1. A junction box mounting mechanism, comprising a base, a pressing assembly for flattening the junction box, a clamping assembly for clamping or releasing the junction box in a first direction, and a claw assembly for smoothing the portion of the busbar extending out of the junction box, characterized in that, The installation mechanism also includes a alignment component, which includes a reference module, an alignment module, and an alignment power unit. The reference module and the alignment module are distributed at both ends of the junction box in a second direction perpendicular to the first direction. The actuating end of the pawl assembly is located between the reference module and the alignment module. When the pressing component flattens the junction box, the alignment power unit drives the alignment module to move towards the reference module and causes the junction box to abut against the reference module. As the junction box aligns with the installation position on the photovoltaic module, the busbar simultaneously passes through the junction box and aligns with the actuating end.

2. The junction box mounting mechanism according to claim 1, characterized in that, The reference module and the correction module each include an abutment section extending along a first direction and a connecting section that bends upward from one end of the abutment section to avoid the pawl assembly in a second direction. The reference module is fixedly connected to the base via the connecting section, and the correction module is connected to the correction power unit via the connecting section. During correction, both ends of the junction box are respectively in contact with the inner wall surface of the corresponding abutment section.

3. The junction box mounting mechanism according to claim 2, characterized in that, The contact sections of the reference module and the correction module are aligned in the second direction.

4. The junction box mounting mechanism according to claim 1, characterized in that, The pressing assembly includes two pressure plates spaced apart in a first direction and a plurality of elastic elements connected between each pressure plate and the base, wherein a limiting area is formed between the two pressure plates and the clamping assembly is disposed within the limiting area.

5. The junction box mounting mechanism according to claim 4, characterized in that, Each of the pressure plates is a U-shaped plate with its opening facing the clamping assembly, and multiple elastic elements are distributed on opposite sides of each U-shaped plate.

6. The junction box mounting mechanism according to claim 1, 4, or 5, characterized in that, The clamping assembly includes two clamping arms spaced apart along a first direction and a clamping power unit that drives the two clamping arms to move toward or away from each other, wherein the actuating end is synchronously located between the two clamping arms.

7. The junction box mounting mechanism according to claim 6, characterized in that, The claw assembly includes two claws spaced apart along a second direction and a smoothing power unit fixed on the base, wherein the smoothing power unit drives the two claws to move away from each other along the second direction to smooth the busbar.

8. The junction box mounting mechanism according to claim 7, characterized in that, The two claws are symmetrically arranged, and each claw includes an L-shaped claw body and a connecting module connecting the claw body and the output end of the smoothing power unit. One end of the claw body is vertically downward and forms the actuating end. An obstacle space is formed between the claw body, the smoothing power unit, and the connecting module. The clamping power unit passes through the obstacle space and is fixed on the base.

9. The junction box mounting mechanism according to claim 1, characterized in that, The mounting mechanism further includes grippers disposed on the base for holding coils on the junction box; and / or, the mounting mechanism further includes a detection camera disposed on the base for locating the position of busbars on the photovoltaic module.

10. The junction box mounting mechanism according to claim 1, characterized in that, The mounting mechanism also includes a robotic arm that drives the lifting and rotating motion of the base.

Images