Photovoltaic connector air tightness testing device and photovoltaic connector

Abstract

The utility model belongs to the technical field of photovoltaic power generation, and particularly relates to a photovoltaic connector air tightness testing device and a photovoltaic connector, the photovoltaic connector air tightness testing device comprises a bottom plate, a middle frame, an electric hydraulic push rod, a photovoltaic connector main body, a detection assembly and an auxiliary assembly, a photovoltaic connector main body is arranged between the bottom plate and the middle frame; the problem of low detection efficiency of the photovoltaic connectors is solved, a plurality of photovoltaic connectors can be roughly detected at the same time, the detection efficiency of the photovoltaic connectors is improved, when numerical values pointed by pointers on a plurality of barometers are different from a standard numerical value, the air tightness of at least one of the detected photovoltaic connector main bodies is unqualified, and the detection efficiency of the photovoltaic connectors is improved. And detection can be carried out again through an accurate instrument, and meanwhile, the rectangular clamping strip can be conveniently inserted into the rectangular clamping groove, so that the time of placing the photovoltaic connector main body in the supporting clamping block is shortened.

Description

Technical Field

[0001] The utility model belongs to the technical field of photovoltaic power generation, and in particular relates to an air tightness testing device for a photovoltaic connector and the photovoltaic connector. Background Art

[0002] With the development of photovoltaic power generation technology, photovoltaic power generation technology has been widely used in power production. At the same time, with the relative maturity of photovoltaic technology, photovoltaic power generation has gradually entered people's daily life. Photovoltaic power generation mainly combines multiple photovoltaic panels, and the combination of photovoltaic panels needs to be connected through photovoltaic connectors. The air tightness of photovoltaic connectors is very important. Photovoltaic connectors with good air tightness have a significant effect in blocking water vapor and can prevent water vapor from entering the joints. However, photovoltaic connectors with poor air tightness will cause internal circuits to short-circuit and be damaged after water vapor enters. In the existing technology, photovoltaic connectors need to be tested for air tightness before leaving the factory. The air tightness test is to manually test a single product separately through an air tightness test instrument. Since the air tightness test instrument can generally only test the air tightness of one photovoltaic connector at a time, its detection efficiency is low.

[0003] Therefore, a photovoltaic connector air tightness testing device and the photovoltaic connector are designed to solve the above problems. Utility Model Content

[0004] (1) Technical problems to be solved

[0005] To overcome this problem, photovoltaic connectors need to be tested for air tightness before leaving the factory. The air tightness test is to manually test a single product individually through an air tightness test instrument. Since the air tightness test instrument can generally only test the air tightness of one photovoltaic connector at a time, the test efficiency is low.

[0006] (2) Technical solution

[0007] The technical solution of the utility model is: a photovoltaic connector air tightness testing device and the photovoltaic connector, including a base plate, a center frame, an electric hydraulic push rod, a photovoltaic connector body, a detection component and an auxiliary component, a center frame is arranged above the base plate, a photovoltaic connector body is arranged between the base plate and the center frame, an electric hydraulic push rod is installed on the upper surface of the base plate, the electric hydraulic push rod is located inside the center frame, a detection component is arranged above the base plate, and an auxiliary component is arranged on the surface of the photovoltaic connector body.

[0008] Preferably, by setting up a detection component, it is helpful to drive the sealing joint to an appropriate height, which makes it convenient to place the photovoltaic connector body inside the support block. During the detection process, multiple photovoltaic connector bodies can be detected at the same time. When the values indicated by the pointers on multiple pressure gauges are different, it means that at least one of the multiple photovoltaic connector bodies tested is unqualified for air tightness, and it can be tested again by precise instruments, which is conducive to rough detection of multiple photovoltaic connectors at the same time, thereby improving the detection efficiency of photovoltaic connectors.

[0009] Furthermore, the detection component includes an upper gravity plate, a connecting rod, a sealing slider, an air valve, a support plate, a support block, an air pressure gauge, a three-way pipe, a lower through pipe and a sealing joint. A sealing slider is inserted in the sealing slide groove opened on the upper surface of the middle frame. The sealing slider and the middle frame are sealingly and slidingly connected. The upper surface of the sealing slider is fixedly connected with a connecting rod. An upper gravity plate is arranged above the middle frame. The top of the connecting rod is fixedly connected to the bottom surface of the upper gravity plate. The telescopic end of the electric hydraulic push rod is fixedly connected to the bottom surface of the upper gravity plate. A three-way pipe is inserted in the front surface of the middle frame. The three-way pipe is connected to the inside of the sealing slide groove. An air valve is installed on the surface of one end of the three-way pipe. A pressure gauge is installed inside the other end of the three-way pipe. A support block is arranged between the middle frame and the bottom plate. A limiting groove is provided on the surface of the support block. The support block Two support plates are fixedly connected on both sides of the frame, and the bottom ends of the support plates are fixedly connected to the upper surface of the bottom plate. The bottom end of the middle frame is fixedly inserted with a down tube connected to the inside of the sealing slide groove, and the bottom end of the down tube is fixedly connected with a sealing joint, which is connected to the inside of the down tube through the air hole opened in it. When the sealing slider contacts the lower card strip, the position of the upper gravity plate remains unchanged. Since there are multiple down tubes and support blocks, multiple photovoltaic connector bodies can be tested at the same time. When the values indicated by the pointers on multiple pressure gauges are different from the standard values, it means that at least one of the multiple photovoltaic connector bodies tested is unqualified for air tightness, and it can be tested again by precise instruments, which is conducive to rough testing of multiple photovoltaic connectors at the same time and improves the detection efficiency of photovoltaic connectors.

[0010] Furthermore, the detection component also includes side panels, built-in sliding rods and outer sleeves. Two side panels are symmetrically fixedly connected to the two sides of the central frame. The bottom surface of each side panel is fixedly connected to the outer sleeve. The bottom surface of the outer sleeve is fixedly connected to the upper surface of the bottom plate, and the built-in sliding rod and the outer sleeve are slidably connected. The movement of the central frame drives the built-in sliding rod to slide inside the outer sleeve, so that the side panels move vertically, thereby realizing the precise movement of the sealing joint to the detection position of the photovoltaic connector body.

[0011] Furthermore, the detection component also includes an upper card strip and a lower card strip, and the upper card strip and the lower card strip are arranged inside the sealing slide. The upper card strip and the lower card strip are fixedly connected to the middle frame, and the upper card strip is located above the sealing slider, and the lower card strip is located below the sealing slider. When the sealing slider moves, the middle frame is driven to move synchronously by the upper card strip. When the sealing slider and the lower card strip are in contact, the values on the pressure gauge can be compared.

[0012] Furthermore, the detection component also includes a second gravity block, and the upper surface of the side plate is fixedly connected to the second gravity block. Under the action of the gravity of the second gravity block, the central frame moves as the upper gravity plate moves downward, thereby achieving the effect of detection after the upper sealing ring and the lower sealing ring are fitted.

[0013] Furthermore, the auxiliary component includes a rectangular card strip, and two rectangular card strips are symmetrically fixedly connected to the circumferential surface of the photovoltaic connector body. The interior of the support card block is symmetrically provided with two rectangular card slots and conical grooves that are connected to the interior of the limit slot. The conical groove is connected to the interior of the rectangular card slot, and the rectangular card strip is inserted into the interior of the rectangular card slot. With the setting of the conical groove, the rectangular card strip can be easily inserted into the interior of the rectangular card slot, thereby improving the time that the photovoltaic connector body is placed inside the support card block.

[0014] Furthermore, the auxiliary component also includes an upper sealing ring and a lower sealing ring. The top of the photovoltaic connector body is fixedly connected to the lower sealing ring, and the bottom end of the sealing joint is fixedly connected to the upper sealing ring. When the upper sealing ring and the lower sealing ring are fitted together, under the action of the gravity of the second gravity block, the sealing of the connection between the sealing joint and the photovoltaic connector body can be guaranteed, thereby ensuring the detection effect of the sealing of the photovoltaic connector.

[0015] (3) Beneficial effects

[0016] Compared with the prior art, the beneficial effects of the present invention are:

[0017] 1. By setting up a composite structure of detection components and auxiliary components to replace the original single structure, the problem of low detection efficiency of photovoltaic connectors is solved, and rough detection of multiple photovoltaic connectors can be performed at the same time, thereby improving the detection efficiency of photovoltaic connectors. When the values indicated by the pointers on multiple pressure gauges are different from the standard values, it means that at least one of the multiple photovoltaic connector bodies under test fails the air tightness test, and a precise instrument can be used to test again. At the same time, the rectangular card strip can be easily inserted into the rectangular card slot, shortening the time it takes to place the photovoltaic connector body inside the support card block;

[0018] 2. Through the detection components, multiple photovoltaic connectors can be roughly inspected at the same time to improve the inspection efficiency of photovoltaic connectors. When there are photovoltaic connectors with unqualified air tightness, they can be inspected again with precise instruments.

[0019] 3. Through the auxiliary components, during the inspection of the photovoltaic connector, the time that the photovoltaic connector body is placed inside the support card block is reduced, thereby improving the efficiency of photovoltaic connector inspection. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0021] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0022] Figure 2 For this utility model Figure 1 Cross-sectional view at AA in the middle;

[0023] Figure 3 For this utility model Figure 2 Enlarged view of point A in the middle;

[0024] Figure 4 This is a schematic structural diagram of the support block and the support plate in the present invention;

[0025] Figure 5 This is a structural diagram of the built-in sliding rod and outer sleeve in the utility model;

[0026] Figure 6 This is a structural diagram of the support block in the utility model;

[0027] Explanation of the accompanying drawings: 1-base plate, 2-center frame, 3-electric hydraulic push rod, 4-photovoltaic connector body, 5-detection component, 501-upper gravity plate, 502-built-in slide bar, 503-outer sleeve, 504-second gravity block, 505-side plate, 506-sealing slide groove, 507-limiting groove, 508-connecting rod, 509-sealing slider, 510-upper clamping strip, 511-lower clamping strip, 512-lower through pipe, 513-sealing joint, 514-support plate, 515-support clamping block, 516-air valve, 517-air pressure gauge, 518-tee pipe, 6-auxiliary component, 601-conical groove, 602-rectangular clamping strip, 603-lower sealing ring, 604-upper sealing ring, 605-rectangular clamping slot. DETAILED DESCRIPTION

[0028] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0029] Example 1:

[0030] See also Figure 1-6The utility model provides an embodiment: a photovoltaic connector air tightness test device and the photovoltaic connector, comprising a base plate 1, a middle frame 2, an electric hydraulic push rod 3, a photovoltaic connector body 4, a detection component 5 and an auxiliary component 6. The middle frame 2 is arranged above the base plate 1, and the photovoltaic connector body 4 is arranged between the base plate 1 and the middle frame 2. The electric hydraulic push rod 3 is installed on the upper surface of the base plate 1, and the electric hydraulic push rod 3 is located inside the middle frame 2. The detection component 5 is arranged above the base plate 1, and the surface of the photovoltaic connector body 4 is provided with an auxiliary component 6. The detection component 5 includes an upper gravity plate 501, a connecting rod 508, a sealing slider 509, an air valve 516, a support plate 514, a support block 515, a pressure gauge 517, and a three-way pipe 5 18. A lower through-tube 512 and a sealing joint 513 are provided. A sealing slider 509 is inserted into the sealing slide groove 506 provided on the upper surface of the middle frame 2. The sealing slider 509 is sealed and slidably connected to the middle frame 2. A connecting rod 508 is fixedly connected to the upper surface of the sealing slider 509. An upper gravity plate 501 is provided above the middle frame 2. The top of the connecting rod 508 is fixedly connected to the bottom surface of the upper gravity plate 501. The telescopic end of the electric hydraulic push rod 3 is fixedly connected to the bottom surface of the upper gravity plate 501. A tee pipe 518 is inserted into the front surface of the middle frame 2. The tee pipe 518 is connected to the inside of the sealing slide groove 506. An air valve 516 is installed on one end surface of the tee pipe 518. A pressure gauge 517 is installed inside the other end of the tee pipe 518. The middle frame 2 and the bottom plate 1 is provided with a support block 515, and a limiting groove 507 is provided on the surface of the support block 515. Two support plates 514 are fixedly connected on both sides of the support block 515. The bottom end of the support plate 514 is fixedly connected to the upper surface of the bottom plate 1. The bottom end of the middle frame 2 is fixedly inserted with a downpipe 512 connected to the inside of the sealing slide groove 506. The bottom end of the downpipe 512 is fixedly connected with a sealing joint 513. The sealing joint 513 is connected to the inside of the downpipe 512 through the air hole provided therein. The detection component 5 also includes side panels 505, a built-in slide rod 502 and an outer sleeve 503. Two side panels 505 are symmetrically fixedly connected to the two sides of the middle frame 2. The bottom surface of each side panel 505 is fixedly connected to the outer sleeve 503. The outer sleeve 503 is fixedly connected to the bottom of the outer sleeve 503. 3 is fixedly connected to the upper surface of the bottom plate 1, and the built-in slide bar 502 and the outer sleeve 503 are slidably connected. The detection component 5 also includes an upper clamping strip 510 and a lower clamping strip 511. The upper clamping strip 510 and the lower clamping strip 511 are provided inside the sealing slide groove 506. The upper clamping strip 510 and the lower clamping strip 511 are both fixedly connected to the middle frame 2, and the upper clamping strip 510 is located above the sealing slider 509, and the lower clamping strip 511 is located below the sealing slider 509. The detection component 5 also includes a second gravity block 504. The upper surface of the side plate 505 is fixedly connected to the second gravity block 504. The operation of the electric hydraulic push rod 3 causes the upper gravity plate 501 to rise, thereby driving the built-in slide bar 502 to slide inside the outer sleeve 503, so that the side plate 505 moves vertically.This facilitates raising the sealing joint 513 to an appropriate height, facilitating placement of the photovoltaic connector body 4 within the support block 515. During the testing process, multiple photovoltaic connector bodies 4 can be tested simultaneously. If the values indicated by the pointers on the multiple pressure gauges 517 differ, it indicates that at least one of the multiple photovoltaic connector bodies 4 tested has failed airtightness testing, and a more accurate instrument can be used for retesting. This facilitates performing rough testing of multiple photovoltaic connectors simultaneously, improving testing efficiency.

[0031] Example 2:

[0032] See also Figure 2 、 Figure 3 and Figure 6 In this embodiment, the auxiliary component 6 includes a rectangular clip 602, and two rectangular clips 602 are symmetrically fixedly connected to the circumferential surface of the photovoltaic connector body 4. The interior of the support block 515 is symmetrically provided with two rectangular clip grooves 605 and a tapered groove 601 that are connected to the interior of the limit groove 507. The tapered groove 601 is connected to the interior of the rectangular clip 605. The rectangular clip 602 is inserted into the interior of the rectangular clip groove 605. The auxiliary component 6 also includes an upper sealing ring 604 and a lower sealing ring 603. The top end of the photovoltaic connector body 4 is fixedly connected with the lower sealing ring 603, and the bottom end of the sealing joint 513 is fixedly connected with the upper sealing ring 604. Under the setting of the tapered groove 601, the rectangular clip 602 can be easily inserted into the interior of the rectangular clip groove 605, thereby improving the time for the photovoltaic connector body 4 to be placed inside the support block 515, and at the same time, ensuring the sealing of the connection between the sealing joint 513 and the photovoltaic connector body 4, thereby ensuring the detection effect of the sealing of the photovoltaic connector.

[0033] When testing the air tightness of the photovoltaic connector, first, the electric hydraulic push rod 3 is connected to the external power supply through the detection component 5, and the electric hydraulic push rod 3 is started through the controller. The telescopic end of the electric hydraulic push rod 3 is against the upper gravity plate 501, so that the upper gravity plate 501 rises. The rise of the upper gravity plate 501 drives the sealing slider 509 to rise through the connecting rod 508. When the sealing slider 509 contacts the upper clamping strip 510, the continuous movement of the upper gravity plate 501 drives the upper clamping strip 510 to move through the sealing slider 509, thereby driving the middle frame 2 to move upward. The movement of the middle frame 2 drives the built-in slide rod 502 to slide inside the outer sleeve 503, so that the side plate 505 moves vertically, which is conducive to driving the sealing joint 513 to rise to an appropriate height, making it convenient for the photovoltaic connector body 4 to be placed inside the support block 515;

[0034] After the photovoltaic connector body 4 is placed inside the limiting groove 507, the electric hydraulic push rod 3 is started again, and the telescopic end of the electric hydraulic push rod 3 begins to retract. Under the action of the gravity of the second gravity block 504, the middle frame 2 moves downward until the sealing joint 513 moves to the inside of the limiting groove 507. At this time, under the action of the gravity of the upper gravity plate 501, the sealing slider 509 slides inside the sealing slide groove 506, causing the air pressure inside the sealing slide groove 506 to increase. As the air pressure increases, the value on the barometer 517 changes continuously. When the sealing slider 509 is in contact with the lower clamping strip 511, the position of the upper gravity plate 501 remains unchanged. Since there are multiple lower through tubes 512 and multiple supporting clamps 515, multiple photovoltaic connector bodies 4 can be tested at the same time. When the values indicated by the pointers on the multiple pressure gauges 517 are different from the standard values, it means that at least one of the multiple photovoltaic connector bodies 4 tested is not airtight. It can be tested again with a precise instrument, which is conducive to performing rough testing on multiple photovoltaic connectors at the same time and improving the testing efficiency of photovoltaic connectors.

[0035] When the photovoltaic connector body 4 is placed inside the limiting groove 507 by the auxiliary component 6, the rectangular clamping strip 602 can be conveniently inserted into the rectangular clamping groove 605 under the setting of the tapered groove 601, thereby shortening the time it takes to place the photovoltaic connector body 4 inside the support block 515 and preventing the photovoltaic connector body 4 from rotating inside the support block 515 during the inspection process.

[0036] During the test, the sealing joint 513 moves toward the photovoltaic connector body 4. When the upper sealing ring 604 and the lower sealing ring 603 are in contact with each other, the second gravity block 504 can ensure the sealing of the connection between the sealing joint 513 and the photovoltaic connector body 4, thereby ensuring the test effect of the sealing of the photovoltaic connector.

[0037] Through the above steps, since the interiors of the upper sealing ring 604, the lower through tube 512 and the sealing groove 506 are all connected, and in the process of simultaneously testing multiple photovoltaic connectors, when the values indicated by the pointers on the multiple pressure gauges 517 are different from the standard values, it means that at least one of the multiple photovoltaic connector bodies 4 tested is not airtight, and can be tested again by precise instruments, which is conducive to rough testing of multiple photovoltaic connectors at the same time and improves the detection efficiency of photovoltaic connectors.

[0038] Finally, it should be noted that the above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art will be able to modify the technical solutions described in the aforementioned embodiments or replace some of the technical features therein with equivalents. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention.

Claims

1. A photovoltaic connector air tightness testing device, comprising a base plate (1), characterized in that: The invention also includes a center frame (2), an electric hydraulic push rod (3), a photovoltaic connector body (4), a detection component (5) and an auxiliary component (6), wherein the center frame (2) is arranged above the base plate (1), the photovoltaic connector body (4) is arranged between the base plate (1) and the center frame (2), the electric hydraulic push rod (3) is installed on the upper surface of the base plate (1), and the electric hydraulic push rod (3) is located inside the center frame (2), the detection component (5) is arranged above the base plate (1), the auxiliary component (6) is arranged on the surface of the photovoltaic connector body (4), the A supporting card block (515) is provided between the center frame (2) and the bottom plate (1); the auxiliary component (6) comprises a rectangular card strip (602); two rectangular card strips (602) are symmetrically fixedly connected to the circumferential surface of the photovoltaic connector body (4); two rectangular card slots (605) and a tapered groove (601) are symmetrically provided inside the supporting card block (515) and are connected to the inside of the limiting groove (507); the tapered groove (601) and the inside of the rectangular card slot (605) are connected; and the rectangular card strip (602) is inserted into the inside of the rectangular card slot (605).

2. The photovoltaic connector air tightness testing device according to claim 1, characterized in that: The detection assembly (5) includes an upper gravity plate (501), a connecting rod (508), a sealing slider (509), an air valve (516), a support plate (514), a pressure gauge (517), a three-way pipe (518), a lower pipe (512) and a sealing joint (513). A sealing slider (509) is inserted into the sealing groove (506) provided on the upper surface of the middle frame (2). The sealing slider (509) and the middle frame (2) are sealed and slidably connected. The upper surface of the sealing slider (509) is fixedly connected to the connecting rod (508). The upper gravity plate (501) is provided above the middle frame (2). The top end of the connecting rod (508) is fixedly connected to the bottom surface of the upper gravity plate (501). The telescopic end of the electric hydraulic push rod (3) is fixedly connected to the bottom surface of the upper gravity plate (501). The front surface of the middle frame (2) A three-way pipe (518) is inserted, and the three-way pipe (518) is connected to the inside of the sealing slide (506). An air valve (516) is installed on the surface of one end of the three-way pipe (518), and an air pressure gauge (517) is installed on the other end of the three-way pipe (518). A limiting groove (507) is provided on the surface of the support block (515). Two support plates (514) are fixedly connected to both sides of the support block (515). The bottom end of the support plate (514) is fixedly connected to the upper surface of the bottom plate (1). A lower pipe (512) connected to the inside of the sealing slide (506) is fixedly inserted at the bottom end of the middle frame (2). The bottom end of the lower pipe (512) is fixedly connected to a sealing joint (513). The sealing joint (513) is connected to the inside of the lower pipe (512) through the air hole provided therein.

3. The photovoltaic connector air tightness testing device according to claim 1, characterized in that: The detection component (5) further comprises side panels (505), a built-in sliding rod (502) and an outer sleeve (503), two side panels (505) are symmetrically fixedly connected to both sides of the central frame (2), the bottom surface of each side panel (505) is fixedly connected to an outer sleeve (503), the bottom surface of the outer sleeve (503) is fixedly connected to the upper surface of the bottom plate (1), and the built-in sliding rod (502) and the outer sleeve (503) are slidably connected.

4. The photovoltaic connector air tightness testing device according to claim 2, characterized in that: The detection assembly (5) further comprises an upper card strip (510) and a lower card strip (511), the upper card strip (510) and the lower card strip (511) being provided inside the sealing slide groove (506), the upper card strip (510) and the lower card strip (511) being fixedly connected to the middle frame (2), and the upper card strip (510) being located above the sealing slider (509), and the lower card strip (511) being located below the sealing slider (509).

5. The photovoltaic connector air tightness testing device according to claim 3, characterized in that: The detection assembly (5) further comprises a second gravity block (504), and the upper surface of the side plate (505) is fixedly connected to the second gravity block (504).

6. The photovoltaic connector air tightness testing device according to claim 2, characterized in that: The auxiliary component (6) further comprises an upper sealing ring (604) and a lower sealing ring (603); the top end of the photovoltaic connector body (4) is fixedly connected to the lower sealing ring (603); and the bottom end of the sealing joint (513) is fixedly connected to the upper sealing ring (604).

7. A photovoltaic connector, characterized in that: The photovoltaic connector air tightness testing device according to any one of claims 1 to 6 is used to perform air tightness testing on the photovoltaic connector.

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