A waterproof enhanced photovoltaic data acquisition device and photovoltaic equipment

Abstract

The utility model discloses a photovoltaic data acquisition device and photovoltaic equipment of reinforcing waterproof, solve the problem that current photovoltaic data acquisition device waterproof performance is insufficient, wherein photovoltaic data acquisition device includes interface seat and install the shell of PCBA, the shell is connected with interface seat, and the front end of PCBA inserts interface seat, interface seat is equipped with the insertion portion of the insertion shell front end, two first sealing pieces are equipped with between the side wall of insertion portion and the inner wall of shell front end side by side, the front end of interface seat is connected with second sealing piece, and second sealing piece seals when the interface seat is butt joint with photovoltaic equipment.

Description

[Technical Field]

[0001] This utility model belongs to the field of photovoltaic technology, specifically relating to photovoltaic inverter technology. [Background Technology]

[0002] Photovoltaic data acquisition devices collect data from photovoltaic grid-connected inverters, combiner boxes, weather stations, and electricity meters in photovoltaic power plants, and transmit the data to a database via GPRS, Ethernet, WIFI, 3G, 4G, and 5G.

[0003] Referring to Chinese utility model patent CN 220823462 U, a universal data acquisition device is disclosed, comprising: a main housing with several locking holes; a data acquisition motherboard disposed within the main housing; and a data acquisition connector inserted into the main housing and connected to the data acquisition motherboard. The data acquisition connector has a data interface and a snap-fit ​​that inserts into the locking holes. The data interface is used to connect to a device for data acquisition. To improve waterproofing, a sealing ring is installed on the acquisition base, which is pressed against the side wall of the fixing cavity to achieve a seal between the acquisition base and the fixing cavity. However, conventional universal data acquisition devices still use a conventional single-layer waterproof structure. For photovoltaic data acquisition devices used outdoors for data acquisition from photovoltaic equipment, their waterproofing performance needs to be improved. [Utility Model Content]

[0004] To address the shortcomings of existing technologies, the present invention aims to provide an enhanced waterproof photovoltaic data acquisition device and photovoltaic equipment, thereby resolving the problem of insufficient waterproof performance in existing photovoltaic data acquisition devices.

[0005] To solve the above-mentioned technical problems, the present invention adopts the following technical solution:

[0006] A photovoltaic data acquisition device includes an interface socket and a housing on which a PCBA is installed. The housing is connected to the interface socket. The front end of the PCBA is inserted into the interface socket. The interface socket is provided with an insertion part that is inserted into the front end of the housing. Two first sealing elements are arranged side by side between the side wall of the insertion part and the inner wall of the front end of the housing. The front end of the interface socket is connected to a second sealing element. The second sealing element seals when the interface socket is connected to a photovoltaic device.

[0007] Preferably, the first sealing element is a sealing ring, and the side wall of the insertion part is provided with a sealing groove for installing the sealing ring.

[0008] Preferably, the front end of the interface seat is provided with a second flange portion, and the second sealing element is a sealing gasket that fits the end face of the second flange portion.

[0009] Preferably, the second flange is provided with a positioning hole, and the front end of the outer shell is provided with a first flange, the first flange being provided with a forward-protruding positioning boss, the positioning boss cooperating with the positioning hole.

[0010] Preferably, the interface seat is provided with a buckle, and the outer shell is provided with a latch that cooperates with the buckle.

[0011] Preferably, the interface socket is provided with a mounting slot for mounting a PCBA; and / or, the interface socket is provided with limiting ribs for restricting the vertical position of the PCBA.

[0012] Preferably, a PCBA limiting structure is provided between the PCBA and the interface socket to restrict the PCBA from being inserted forward into the connector socket.

[0013] Preferably, the PCBA limiting structure includes a first limiting part and a second limiting part disposed on both sides of the width of the PCBA, and the first limiting part and the second limiting part are spaced apart in the front-back direction of the PCBA. The interface seat is provided with a first positioning step and a second positioning step on opposite sides, and the first positioning step and the second positioning step are spaced apart in the front-back direction of the interface seat. After the PCBA is inserted forward into the interface seat, the first limiting part cooperates with the first positioning step, and there is a space between the second limiting part and the second positioning step.

[0014] Preferably, the PCBA has a USB plug at the front end, an anti-disengagement protrusion on the rear side of the USB plug, and an anti-disengagement buckle that mates with the anti-disengagement protrusion inside the interface socket.

[0015] In addition, a photovoltaic device is provided, which is equipped with a data acquisition port that is connected to the photovoltaic data acquisition device.

[0016] The present invention adopts the above technical solution and has the following beneficial effects:

[0017] 1. Based on the conventional single-layer waterproof structure, two first sealing elements are arranged side by side between the side wall of the insertion part and the inner wall of the front end of the outer shell to form a double-layer sealing structure, which enhances the sealing effect between the outer shell and the interface seat. In addition, a second sealing element is connected to the front end of the interface seat. The second sealing element seals when the interface seat is connected to the photovoltaic equipment, thus solving the problem of insufficient waterproof performance of existing photovoltaic data acquisition devices.

[0018] 2. The first sealing element is a sealing ring, and the side wall of the insertion part is provided with a sealing groove for installing the sealing ring. After the sealing ring and the interface seat are assembled, they are inserted into the PCBA and assembled with the outer shell. The compression of the two sealing rings forms a double-layer sealing structure, achieving a double-layer waterproof effect.

[0019] 3. When assembling the outer shell and the interface seat, the positioning boss is matched with the positioning hole to achieve positioning. In addition, the interface seat is provided with a buckle, and the outer shell is provided with a buckle that matches the buckle. In this way, the outer shell and the interface seat can be quickly assembled without screws or other fasteners.

[0020] 4. Because the interface socket has a mounting slot for installing PCBA, when installing PCBA, simply align the PCBA with the mounting slot and insert it for installation. This facilitates the assembly of PCBA and interface socket, and positions the PCBA vertically, making it less likely to loosen.

[0021] 5. To limit the forward insertion position of the PCBA into the connector socket, a PCBA limiting structure is provided between the PCBA and the interface socket. The PCBA has a first limiting part and a second limiting part on both sides of its width, with a gap between them in the front-to-back direction. The interface socket has a first positioning step and a second positioning step on opposite sides, also with a gap between them in the front-to-back direction. Thus, after the PCBA is inserted into the interface socket, the first limiting part engages with the first positioning step, while the second limiting part and the second positioning step have a gap. Furthermore, if the PCBA is installed backwards, the first positioning step and the second limiting part will engage, preventing the PCBA from being installed forward into position. The distance by which the USB plug at the front of the PCBA protrudes forward from the first flange is much smaller than normal, serving as a warning of incorrect installation. Therefore, the PCBA limiting structure also prevents incorrect installation.

[0022] 6. Since the PCBA has an anti-disengagement protrusion on the back of the USB plug, and the interface socket has an anti-disengagement buckle that cooperates with the anti-disengagement protrusion, it has the function of preventing the PCBA from continuing to move backward and causing it to be disengaged from the normal installation position.

[0023] These features and advantages of the present invention will be disclosed in detail in the following specific embodiments and accompanying drawings. [Attached Image Description]

[0024] The utility model will be further described below with reference to the accompanying drawings:

[0025] Figure 1 This is an exploded view of the photovoltaic data acquisition device of this utility model;

[0026] Figure 2 This is a schematic diagram of the assembly structure of the photovoltaic data acquisition device of this utility model;

[0027] Figure 3 This is a schematic diagram of the interface socket;

[0028] Figure 4 This is a schematic diagram of the interface socket;

[0029] Figure 5 This is a schematic diagram of the interface socket;

[0030] Figure 6 This is a schematic diagram of the interface socket;

[0031] Figure 7 This is a schematic diagram of the outer shell structure;

[0032] Figure 8 for Figure 7 Enlarged structural diagram at point A in the middle;

[0033] Figure 9 This is a schematic diagram of the PCBA structure;

[0034] Figure 10 This is a schematic diagram of the assembly structure of the PCBA and the interface socket;

[0035] Figure 11 This is a schematic diagram of the assembly structure of the PCBA and the interface socket;

[0036] Figure 12 This is a schematic diagram of the assembly structure of the PCBA, its housing, and the interface socket.

[0037] Reference numerals: Interface seat 1, Sealing slot 11, Buckle 12, Second flange 13, Positioning hole 131, Positioning groove 132, Mounting slot 14, First positioning step 15, Second positioning step 16, Anti-disengagement position 17, Limiting rib 18, Through hole 19, Sealing ring 2, Sealing gasket 3, Housing 4, First flange 41, Positioning boss 42, Buckle 43, Through groove 44, PCBA 5, USB plug 51, First limiting part 52, Second limiting part 53.

Detailed Implementation Methods

[0038] The technical solutions of the present utility model will be explained and described below with reference to the accompanying drawings. However, the following embodiments are only preferred embodiments of the present utility model and not all of them. Other embodiments obtained by those skilled in the art based on the embodiments in the implementation methods without creative effort are all within the protection scope of the present utility model.

[0039] Those skilled in the art will understand that, without conflict, the features in the following embodiments and implementations can be combined with each other.

[0040] The terminology used in this invention is for the purpose of describing particular embodiments only and is not intended to limit the invention. For example, terms such as "upper," "lower," "front," and "rear," which indicate orientation or positional relationship, are based solely on the orientation or positional relationship shown in the accompanying drawings and are used only for the convenience of describing the invention and simplifying the description. They do not indicate or imply that the device / component referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore should not be construed as limiting the invention.

[0041] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0042] Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features.

[0043] like Figures 1 to 12 As shown, this embodiment provides a photovoltaic data acquisition device, including an interface socket 1 and a housing 4 on which a PCBA 5 is mounted. The housing 4 and PCBA 5 are connected to the interface socket 1, wherein the front end of the PCBA is inserted into the interface socket 1. The interface socket 1 has an insertion part for inserting into the front end of the housing. Two annular first sealing elements are arranged side by side in the front-rear direction between the side wall of the insertion part and the inner wall of the front end of the housing. A second sealing element is connected to the front end of the interface socket. The second sealing element seals when the interface socket is connected to a photovoltaic device. In this way, based on the conventional single-layer waterproof structure, the two side-by-side first sealing elements form a double-layer sealing structure, which enhances the sealing effect between the housing and the interface socket. In addition, since the front end of the interface socket is connected to the second sealing element, the second sealing element seals when the interface socket is connected to the photovoltaic device, solving the problem of insufficient waterproof performance of existing photovoltaic data acquisition devices.

[0044] Specifically, the first sealing element is a sealing ring 2, such as an O-ring. The side wall of the insertion part is provided with a sealing groove 11 for installing the sealing ring. After the sealing ring and the interface seat are assembled, they are inserted into the PCBA and assembled with the outer shell. The double sealing rings are compressed to form a double-layer sealing structure, achieving double-layer waterproofing. The front end of the interface seat 1 is provided with a second flange 13. The second sealing element is a sealing gasket 3 that fits against the end face of the second flange. The end face of the second flange is provided with a positioning groove 132 for installing the sealing gasket 3. The depth of the positioning groove is less than the thickness of the sealing gasket, so that the sealing gasket can protrude from the positioning groove, thereby achieving effective sealing.

[0045] To achieve rapid and accurate assembly between the housing and the interface seat, the second flange is provided with a positioning hole 131, and the front end of the housing is provided with a first flange 41. The first flange is provided with a forward-protruding positioning boss 42, which engages with the positioning hole 131. The interface seat 1 is provided with a snap fastener 12, and the housing is provided with a snap-fit ​​position 43 that engages with the snap fastener. The housing is provided with a through groove 44 corresponding to the snap-fit ​​position. In this way, the housing and the interface seat can be quickly assembled without screws or other fasteners.

[0046] In some embodiments, the interface socket 1 is provided with mounting slots 14 for mounting a PCBA. Two mounting slots 14 are correspondingly arranged on the left and right side walls of the inner side of the interface socket 1. The left and right sides of the PCBA are respectively engaged with the two mounting slots 14, which not only positions the installation height of the PCBA in the interface socket, but also restricts its left and right position.

[0047] Furthermore, the interface socket 1 is provided with limiting ribs 18 for restricting the vertical position of the PCBA. The limiting ribs 18 are located between the two left and right mounting slots 14 inside the interface socket, and are arranged in pairs, specifically two pairs, which can work together with the mounting slots to position the installation height of the PCBA inside the interface socket.

[0048] In addition, a PCBA limiting structure is provided between the PCBA5 and the interface socket 1 to restrict the forward insertion position of the PCBA into the connector socket. Specifically, the PCBA limiting structure includes a first limiting part 52 and a second limiting part 53 provided on both sides of the width of the PCBA. The first limiting part 52 and the second limiting part 53 are stepped structures provided on both sides of the width of the PCBA, and the first limiting part and the second limiting part are spaced apart in the front-back direction of the PCBA. A first positioning step 15 and a second positioning step 16 are provided on opposite sides inside the interface socket, and the first positioning step 15 and the second positioning step 16 are spaced apart in the front-back direction of the interface socket. The first positioning step 15 and the second positioning step 16 correspond to the position of the mounting slot 14, that is, they are located directly in front of the mounting slot 14. Figure 10As shown, after PCBA5 is inserted into interface socket 1, the first limiting part 52 engages with the first positioning step 15, and there is a gap between the second limiting part 53 and the second positioning step 16. This design serves two purposes: firstly, to prevent misalignment of the left and right sides of the PCBA during installation, and secondly, to position the PCBA at the front and back. If the PCBA is installed backwards, the first positioning step and the second limiting part will engage, and the PCBA will clearly not be able to be installed forward into place. The distance by which the USB plug at the front of the PCBA protrudes forward from the first flange is much smaller than the normal value, serving as a warning of incorrect installation. Therefore, the PCBA limiting structure also has the function of preventing incorrect installation.

[0049] In some embodiments, the PCBA has a USB plug 51 at its front end, and an anti-disengagement protrusion on the rear side of the USB plug. The interface base 1 has an anti-disengagement latch 17 that mates with the anti-disengagement protrusion. The front end of the interface base 1 has a through hole 19 through which the PCBA can pass from front to back. The anti-disengagement latch 17 engages with the anti-disengagement protrusion on the rear side of the USB plug to prevent the PCBA from moving further backward, thus preventing the PCBA from disengaging from its normal mounting position.

[0050] The photovoltaic equipment is equipped with a data acquisition port. In this embodiment, the photovoltaic data acquisition device is connected to the photovoltaic equipment, specifically, the data acquisition port is connected to the USB plug 51 of the photovoltaic data acquisition device. The second sealing element seals the interface when it is connected to the photovoltaic equipment.

[0051] The above description is merely a specific embodiment of the utility model, but the scope of protection of the utility model is not limited thereto. Those skilled in the art should understand that the utility model includes, but is not limited to, the content described in the accompanying drawings and the specific embodiments above. Any modifications that do not depart from the functional and structural principles of the utility model will be included within the scope of the claims.

Claims

1. A photovoltaic data acquisition device, comprising an interface socket and a housing on which a PCBA is mounted, wherein the housing is connected to the interface socket, and the front end of the PCBA is inserted into the interface socket, characterized in that, The interface seat is provided with an insertion part that is inserted into the front end of the housing. Two first sealing elements are arranged side by side between the side wall of the insertion part and the inner wall of the front end of the housing. The front end of the interface seat is connected to a second sealing element, which seals the interface seat when it is connected to the photovoltaic device.

2. The photovoltaic data acquisition device according to claim 1, characterized in that, The first sealing element is a sealing ring, and the side wall of the insertion part is provided with a sealing groove for installing the sealing ring.

3. The photovoltaic data acquisition device according to claim 1, characterized in that, The front end of the interface seat is provided with a second flange, and the second sealing element is a sealing gasket that fits the end face of the second flange.

4. The photovoltaic data acquisition device according to claim 3, characterized in that, The second flange is provided with a positioning hole, and the front end of the outer shell is provided with a first flange. The first flange is provided with a forward-protruding positioning boss, which cooperates with the positioning hole.

5. The photovoltaic data acquisition device according to claim 1, characterized in that, The interface base is provided with a buckle, and the outer shell is provided with a latch that cooperates with the buckle.

6. The photovoltaic data acquisition device according to claim 1, characterized in that, The interface socket is provided with a mounting slot for mounting a PCBA; and / or, the interface socket is provided with a limiting rib for restricting the vertical position of the PCBA.

7. The photovoltaic data acquisition device according to claim 1, characterized in that, A PCBA limiting structure is provided between the PCBA and the interface socket to restrict the PCBA from being inserted forward into the connector socket.

8. The photovoltaic data acquisition device according to claim 7, characterized in that, The PCBA limiting structure includes a first limiting part and a second limiting part disposed on both sides of the width of the PCBA, and the first limiting part and the second limiting part are spaced apart in the front-back direction of the PCBA. The interface seat has a first positioning step and a second positioning step disposed on opposite sides, and the first positioning step and the second positioning step are spaced apart in the front-back direction of the interface seat. After the PCBA is inserted forward into the interface seat, the first limiting part cooperates with the first positioning step, and there is a space between the second limiting part and the second positioning step.

9. The photovoltaic data acquisition device according to claim 1, characterized in that, The PCBA has a USB plug at the front end, and an anti-disengagement protrusion on the rear side of the USB plug. The interface socket has an anti-disengagement buckle that cooperates with the anti-disengagement protrusion.

10. A photovoltaic device, wherein the photovoltaic device is provided with a data acquisition port, characterized in that, The data acquisition port is connected to the photovoltaic data acquisition device according to any one of claims 1 to 9.

Images