Data acquisition device and photovoltaic inverter

Abstract

The utility model belongs to the field of photovoltaic technology, and specifically discloses a data acquisition device and a photovoltaic inverter. The data acquisition device provided by the utility model is used for being plugged with the plug connector on the photovoltaic inverter so as to acquire the operation data of the photovoltaic inverter, the interface seat of the data acquisition device is provided with the first clamping piece, and the first clamping piece is clamped with the clamping interface on the shell, so that the fixed connection between the interface assembly and the shell is realized; the first clamping piece is connected with the interface seat through the reinforcing piece, so that the connecting structure strength of the first clamping piece and the interface seat is improved, and the first clamping piece is not easy to damage when the interface seat is mounted or dismounted; besides, after the first clamping piece penetrates through the clamping opening and is limited on the shell, the reinforcing piece is arranged in the clamping opening, and the circumferential side wall of the reinforcing piece is attached to the inner side wall of the clamping opening, so that the interface seat is prevented from shaking relative to the shell, and the stability of connection between the interface seat and the shell is improved on the premise that the first clamping piece is prevented from being broken.

Description

Technical Field

[0001] The utility model relates to the technical field of photovoltaic, in particular to a data acquisition device and a photovoltaic inverter. Background Art

[0002] With the development of solar photovoltaic power generation technology, distributed photovoltaic power generation systems have received increasing attention due to their many advantages. The layout of distributed photovoltaic power generation systems is scattered, and the scattered layout of photovoltaics poses challenges to the monitoring of photovoltaic power generation.

[0003] The photovoltaic inverter in a photovoltaic power generation system is used to convert the variable DC voltage generated by a photovoltaic solar panel into AC power with the frequency of the commercial power, which can be fed back to the power grid for use. A data acquisition device is provided on the photovoltaic inverter, and the data acquisition device is used to collect the operation data of the photovoltaic inverter and play a role in monitoring the operation of the photovoltaic inverter.

[0004] The data acquisition device includes a housing and an interface base. The interface base can be plugged into the plug-in connector on the photovoltaic inverter to realize the communication connection between the data acquisition device and the photovoltaic inverter. The interface base is snap-connected to the housing, but the snap-connection structure between the existing interface base and the housing has poor connection stability, and the interface base is easily separated from the housing, resulting in poor connection stability between the data acquisition device and the photovoltaic inverter. Moreover, the structural strength of the snap-connection structure is poor, and the snap-connection structure is easily damaged when the interface base is installed or disassembled. Summary of the Utility Model

[0005] The purpose of the utility model is to provide a data acquisition device and a photovoltaic inverter, which improve the connection stability between the interface base and the housing and the structural strength of the connection between the first snap-connection member and the interface base, and the first snap-connection member is not easily damaged.

[0006] To achieve this purpose, the utility model adopts the following technical solutions:

[0007] In a first aspect, a data acquisition device is provided, including:

[0008] A housing, one end of the housing is provided with an opening, and a snap-connection port is provided at the end of the housing with the opening;

[0009] An interface assembly, the interface assembly includes an interface base and a first snap-connection member. A reinforcing member is provided on the interface base. One end of the first snap-connection member is connected to the reinforcing member. The other end of the first snap-connection member passes through the snap-connection port and is limited on the housing. The reinforcing member is placed in the snap-connection port, and the circumferential side wall of the reinforcing member is attached to the inner side wall of the snap-connection port.

[0010] As an alternative technical solution of the above data acquisition device, at least two of the card interfaces are provided on the outer shell at equal intervals in the circumferential direction, the first card connecting member is arranged in one-to-one correspondence with the card interface, and the reinforcing member is arranged in one-to-one correspondence with the first card connecting member.

[0011] As an alternative technical solution of the above data acquisition device, a boss extends outward in the circumferential direction at one end of the outer shell where there is an opening, the card interface is arranged on the boss, and the card interface extends along the axial direction of the outer shell.

[0012] As an alternative technical solution of the above data acquisition device, the reinforcing member includes a reinforcing block, one end of the reinforcing block is connected to the interface seat, the other end of the reinforcing block is connected to one end of the first card connecting member, the circumferential side wall of the reinforcing block fits with the inner side wall of the card interface, and the width of the first card connecting member is smaller than the width of the reinforcing block.

[0013] As an alternative technical solution of the above data acquisition device, the first card connecting member includes a first card connecting plate, one end of the first card connecting plate is connected to the reinforcing block, the width of the first card connecting plate is smaller than the width of the reinforcing block, a rib plate is connected between the first card connecting plate and the reinforcing block, and a first card connecting block is arranged at the other end of the first card connecting plate. The first card connecting block can pass through the card interface and be clamped on the outer shell.

[0014] As an alternative technical solution of the above data acquisition device, a guiding inclined surface is arranged on the first card connecting block, and the guiding inclined surface is inclined from one end of the first card connecting block close to the reinforcing block to the other end.

[0015] As an alternative technical solution of the above data acquisition device, a data module is arranged in the outer shell, the interface assembly further includes a plugging module, the plugging module is connected to the interface seat, one end of the plugging module is electrically connected to the data module, the other end of the plugging module is used for plugging with a plugging member on a photovoltaic inverter, both ends of the plugging module are placed on both sides of the interface seat, a plugging plate is arranged on the interface seat around the circumference of one end of the plugging module, the plugging plate is plugged into the opening of the outer shell, and the plugging plate fits with the inner side wall of the outer shell.

[0016] As an alternative technical solution of the above data acquisition device, a sealing groove is arranged in the circumferential direction on one of the plugging plate and the outer shell, a sealing member is arranged in the sealing groove, and the sealing member fits with the other of the plugging plate and the outer shell.

[0017] As an alternative technical solution of the above data acquisition device, a plugging cap is detachably connected to the side of the interface seat facing away from the plugging plate, and the plugging cap surrounds the plugging module.

[0018] In a second aspect, a photovoltaic inverter is provided, including a plug-in component and the above data acquisition device.

[0019] Advantages of the present utility model:

[0020] The data acquisition device provided by the present utility model is used to be plugged into the plug-in component on the photovoltaic inverter to acquire the operation data of the photovoltaic inverter. A first clamping component is arranged on the interface seat of the data acquisition device, and the first clamping component is clamped with the clamping interface on the housing, realizing the fixed connection between the interface component and the housing; the first clamping component is connected with the interface seat through a reinforcing component, improving the connection structural strength between the first clamping component and the interface seat. When installing or disassembling the interface seat, the first clamping component is not easily damaged; in addition, after the first clamping component passes through the clamping interface and is limited on the housing, the reinforcing component is placed in the clamping interface, and the circumferential side wall of the reinforcing component fits with the inner side wall of the clamping interface, avoiding the interface seat from shaking relative to the housing. On the premise of avoiding the fracture of the first clamping component, the connection stability between the interface seat and the housing is also improved. Description of the Drawings

[0021] Figure 1 is the overall structural schematic diagram of the data acquisition device provided by the embodiment of the present utility model;

[0022] Figure 2 is the exploded view of the data acquisition device provided by the embodiment of the present utility model;

[0023] Figure 3 is the structural schematic diagram of the structural component provided by the embodiment of the present utility model;

[0024] Figure 4 is the cross-sectional view of the data acquisition device provided by the embodiment of the present utility model;

[0025] Figure 5 is Figure 4 the partial enlarged structural schematic diagram of part A of

[0026] In the figure:

[0027] 1, housing; 2, clamping interface; 3, data module; 4, interface component; 5, plug-in board; 6, seal; 7, plug-in cap; 8, sealing plug;

[0028] 11, boss; 12, plug-in seat;

[0029] 41, interface seat; 42, plug-in module; 43, first clamping component; 431, first clamping plate; 432, first clamping block; 433, rib plate; 44, reinforcing component; 45, second clamping component; 451, second clamping plate; 452, second clamping block. Detailed Embodiments

[0030] The present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It can be understood that the specific embodiments described herein are only used to explain the present utility model, rather than limiting the present utility model. Additionally, it should be noted that for the convenience of description, only the parts related to the present utility model rather than all the structures are shown in the drawings.

[0031] In the description of the present utility model, unless otherwise clearly defined and limited, the terms "connected", "connected to", and "fixed" shall be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or integrated; it may be a mechanical connection or an electrical connection; it may be directly connected, or indirectly connected through an intermediate medium, and it may be the communication inside two elements or the interaction relationship between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0032] In the present utility model, unless otherwise clearly defined and limited, the first feature being "above" or "below" the second feature may include the direct contact between the first and second features, or may include the situation where the first and second features are not in direct contact but in contact through other features between them. Moreover, the first feature being "above", "over", and "on" the second feature includes the first feature being directly above and obliquely above the second feature, or merely indicating that the horizontal height of the first feature is higher than that of the second feature. The first feature being "below", "under", and "beneath" the second feature includes the first feature being directly below and obliquely below the second feature, or merely indicating that the horizontal height of the first feature is lower than that of the second feature.

[0033] In the description of this embodiment, the orientation or positional relationships such as "above", "below", "right", etc. are based on the orientation or positional relationships shown in the drawings. It is only for the convenience of description and simplifying the operation, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it cannot be understood as a limitation to the present utility model. In addition, the terms "first" and "second" are only used for distinction in description and have no special meaning.

[0034] As Figures 1 to 3 shown, this embodiment provides a data acquisition device, which includes a housing 1 and an interface component 4. One end of the housing 1 is provided with an opening, and a card interface 2 is provided at the end of the housing 1 where the opening is located. The interface component 4 includes an interface seat 41 and a first clamping member 43. A reinforcing member 44 is provided on the interface seat 41. One end of the first clamping member 43 is connected to the reinforcing member 44, and the other end of the first clamping member 43 passes through the card interface 2 and is limited on the housing 1. The reinforcing member 44 is placed inside the card interface 2, and the circumferential side wall of the reinforcing member 44 is attached to the inner side wall of the card interface 2.

[0035] The data acquisition device is used to be plugged into the connector on the photovoltaic inverter to collect the operation data of the photovoltaic inverter. A first clamping member 43 is provided on the interface seat 41 of the data acquisition device. The first clamping member 43 is clamped with the clamping interface 2 on the housing 1, realizing the fixed connection between the interface assembly 4 and the housing 1. The first clamping member 43 and the interface seat 41 are connected by a reinforcing member 44, improving the connection structural strength between the first clamping member 43 and the interface seat 41. When installing or disassembling the interface seat 41, the first clamping member 43 is not easily damaged. In addition, after the first clamping member 43 passes through the clamping interface 2 and is limited on the housing 1, the reinforcing member 44 is placed in the clamping interface 2, and the circumferential side wall of the reinforcing member 44 fits with the inner side wall of the clamping interface 2, avoiding the interface seat 41 from shaking relative to the housing 1. On the premise of avoiding the fracture of the first clamping member 43, the connection stability between the interface seat 41 and the housing 1 is also improved.

[0036] As Figure 3 , Figure 4 and Figure 5 shown, in some embodiments, the housing 1 is provided with at least two clamping interfaces 2 at equal intervals in the circumferential direction. The first clamping members 43 are arranged in one-to-one correspondence with the clamping interfaces 2, and the reinforcing members 44 are arranged in one-to-one correspondence with the first clamping members 43, improving the connection stability between the interface seat 41 and the housing 1. Optionally, two clamping interfaces 2 are provided on the housing 1. Correspondingly, two first clamping members 43 are provided on the interface seat 41, simplifying the structure of the interface seat 41 on the premise of ensuring the connection stability between the interface seat 41 and the housing 1.

[0037] In order to facilitate the processing of the clamping interface 2 on the housing 1, a boss 11 extends outward in the circumferential direction at the end of the housing 1 with an opening. The clamping interface 2 is arranged on the boss 11, and the clamping interface 2 extends along the axial direction of the housing 1. The provided boss 11 can increase the local thickness of the side wall of the housing 1. During the process of processing the clamping interface 2, the housing 1 is not easily damaged, improving the yield. Wherein, the axial direction of the housing 1 is the direction extending from the end of the housing 1 with an opening to the other end.

[0038] One end of the housing 1 opposite to the opening is provided with a socket 12 for fixing the data module 3 to prevent the data module 3 from shaking in the housing 1.

[0039] In some embodiments, the reinforcing member 44 includes a reinforcing block. One end of the reinforcing block is connected to the interface seat 41, the other end of the reinforcing block is connected to one end of the first clamping member 43, and the circumferential side wall of the reinforcing block fits with the inner side wall of the clamping interface 2 to avoid the interface seat 41 from shaking relative to the housing 1. The width of the first clamping member 43 is smaller than the width of the reinforcing block, and the first clamping member 43 can pass through the clamping interface 2 smoothly.

[0040] Optionally, the first clamping member 43 includes a first clamping plate 431, one end of which is connected to the reinforcing block, the width of the first clamping plate 431 is smaller than the width of the reinforcing block, and a rib 433 is connected between the first clamping plate 431 and the reinforcing block to improve the strength of the connection structure between the first clamping plate 431 and the reinforcing block. The other end of the first clamping plate 431 is provided with a first clamping block 432, and the first clamping block 432 can pass through the card interface 2 and be clamped on the shell 1. In the process of the first clamping member 43 passing through the card interface 2, the inner wall of the card interface 2 squeezes the first clamping block 432, and the first clamping plate 431 is deformed. When the first clamping block 432 passes through the card interface 2 and is no longer squeezed by the inner wall of the card interface 2, the first clamping plate 431 is reset, and the first clamping block 432 is clamped on the shell 1.

[0041] A guiding slope is provided on the first clamping block 432, and the guiding slope is inclined from one end of the first clamping block 432 close to the reinforcing block to the other end. When the first clamping block 432 passes through the card interface 2, the deformation of the first clamping plate 431 gradually increases, so that the first clamping block 432 can smoothly enter the card interface 2 and pass through the card interface 2.

[0042] In some embodiments, a data module 3 is provided in the housing 1, and the interface assembly 4 further includes a plug-in module 42, the plug-in module 42 is connected to the interface seat 41, one end of the plug-in module 42 is conductively connected to the data module 3, and the other end of the plug-in module 42 is used to plug with the connector on the photovoltaic inverter. The two ends of the plug-in module 42 are placed on both sides of the interface seat 41. After the interface seat 41 is installed on the housing 1, one end of the plug-in module 42 is placed in the housing 1 and conductively connected to the data module 3. A plug-in board 5 is provided on the interface seat 41 in the circumference surrounding one end of the plug-in module 42, the plug-in board 5 is plugged into the opening of the housing 1, and the plug-in board 5 is in contact with the inner wall of the housing 1 to seal the opening of the housing 1. The structure of the data module 3 is a prior art and will not be described in detail here.

[0043] Further optionally, one of the plug board 5 and the housing 1 is provided with a sealing groove along the circumferential direction, and a sealing member 6 is provided in the sealing groove, and the sealing member 6 is fitted with the other of the plug board 5 and the housing 1. The sealing member 6 is provided to further improve the sealing performance of the housing 1.

[0044] The side of the interface seat 41 facing away from the plug board 5 is detachably connected with a plug cap 7, which is arranged around the plug module 42. The plug module 42 on the side of the interface seat 41 facing away from the plug board 5 is used to connect with the plug connector on the photovoltaic inverter, and the space between the plug cap 7 and the plug module 42 is used to accommodate the plug connector to achieve a stable connection between the plug module 42 and the plug connector.

[0045] Optionally, a second clamping member 45 is provided on the side of the interface base 41 facing away from the plug-in board 5. The second clamping member 45 is arranged on the interface base 41 along the circumferential direction of the interface base 41 and surrounds the plug-in module 42. One end of the second clamping member 45 is elastically connected to the interface base 41. When the plug-in cap 7 is installed on the interface base 41, the second clamping member 45 is placed inside the plug-in cap 7, and the plug-in cap 7 causes elastic deformation of the second clamping member 45. The other end of the second clamping member 45 elastically abuts against the inner side wall of the plug-in cap 7, realizing the fixation of the plug-in cap 7 on the interface base 41.

[0046] The second clamping member 45 includes a second clamping plate 451. One end of the second clamping plate 451 is elastically connected to the interface base 41, and a second clamping block 452 is provided at the other end of the second clamping plate 451. The second clamping block 452 is used to press against the inner side wall of the plug-in cap 7.

[0047] A guiding inclined surface is provided on the side of the second clamping block 452 facing away from the interface base 41. During the process of inserting the second clamping block 452 into the plug-in cap 7, the deformation amount of the second clamping plate 451 gradually increases, so that multiple second clamping blocks 452 can smoothly enter the plug-in cap 7 at the same time.

[0048] In some embodiments, a plug-in hole is provided at the end of the end of the plug-in module 42 connected to the plug-in member of the photovoltaic inverter. When the data acquisition device is not installed on the photovoltaic inverter, in order to prevent impurities and the like from entering the plug-in hole, a sealing plug 8 is provided at one end of the plug-in module 42 connected to the plug-in member. The sealing plug 8 is detachably connected to the plug-in module 42 and is used to block the plug-in hole.

[0049] This embodiment also provides a photovoltaic inverter, which includes a plug-in member and the above-mentioned data acquisition device. The other end of the plug-in module 42 of the data acquisition device is plugged into the plug-in member.

[0050] Obviously, the above-mentioned embodiments of the present invention are merely examples for clearly explaining the present invention, rather than limitations on the implementation manners of the present invention. For those of ordinary skill in the art, various obvious changes, re-adjustments and substitutions can be made without departing from the protection scope of the present invention. It is not necessary and impossible to enumerate all the implementation manners here. Any modifications, equivalent substitutions and improvements made within the spirit and principle of the present invention shall be included in the protection scope of the claims of the present invention.

Claims

1. A data acquisition device, characterized in that: include: A housing (1), one end of the housing (1) being provided with an opening, and the end of the housing (1) being provided with the opening being provided with a card interface (2); An interface component (4), the interface component (4) comprising an interface seat (41) and a first clamping member (43), a reinforcing member (44) being provided on the interface seat (41), one end of the first clamping member (43) being connected to the reinforcing member (44), the other end of the first clamping member (43) passing through the card interface (2) and being limited on the housing (1), the reinforcing member (44) being disposed in the card interface (2), the circumferential side wall of the reinforcing member (44) being in contact with the inner side wall of the card interface (2).

2. The data acquisition device according to claim 1, characterized in that: The housing (1) is provided with at least two card interfaces (2) at equal intervals along the circumferential direction, the first card connector (43) is arranged in a one-to-one correspondence with the card interface (2), and the reinforcing member (44) is arranged in a one-to-one correspondence with the first card connector (43).

3. The data acquisition device according to claim 1, characterized in that: The housing (1) is provided with a boss (11) extending outwardly along the circumferential direction at one end of the opening, the card interface (2) is arranged on the boss (11), and the card interface (2) extends along the axial direction of the housing (1).

4. The data acquisition device according to any one of claims 1 to 3, characterized in that: The reinforcing member (44) comprises a reinforcing block, one end of which is connected to the interface seat (41), and the other end of which is connected to one end of the first clamping member (43), the circumferential side wall of the reinforcing block is in contact with the inner side wall of the clamping interface (2), and the width of the first clamping member (43) is smaller than the width of the reinforcing block.

5. The data acquisition device according to claim 4, characterized in that: The first clamping member (43) comprises a first clamping plate (431), one end of the first clamping plate (431) is connected to the reinforcing block, the width of the first clamping plate (431) is smaller than the width of the reinforcing block, a rib plate (433) is connected between the first clamping plate (431) and the reinforcing block, and the other end of the first clamping plate (431) is provided with a first clamping block (432), and the first clamping block (432) can pass through the card interface (2) and be clamped on the housing (1).

6. The data acquisition device according to claim 5, characterized in that: The first clamping block (432) is provided with a guiding inclined surface, and the guiding inclined surface is inclinedly arranged from one end of the first clamping block (432) close to the reinforcing block to the other end.

7. The data acquisition device according to any one of claims 1 to 3, characterized in that: The housing (1) is provided with a data module (3), and the interface assembly (4) further comprises a plug-in module (42), the plug-in module (42) being connected to the interface seat (41), one end of the plug-in module (42) being conductively connected to the data module (3), and the other end of the plug-in module (42) being used for plugging into a plug-in component on a photovoltaic inverter, the two ends of the plug-in module (42) being arranged on both sides of the interface seat (41), a plug-in board (5) being arranged on the interface seat (41) in a circumferential direction around one end of the plug-in module (42), the plug-in board (5) being plugged into an opening of the housing (1), and the plug-in board (5) being in contact with an inner wall of the housing (1).

8. The data acquisition device according to claim 7, characterized in that: One of the plug board (5) and the housing (1) is provided with a sealing groove along the circumferential direction, a sealing member (6) is provided in the sealing groove, and the sealing member (6) is fitted with the other of the plug board (5) and the housing (1).

9. The data acquisition device according to claim 7, characterized in that: A plug cap (7) is detachably connected to the side of the interface seat (41) facing away from the plug board (5), and the plug cap (7) is arranged around the plug module (42).

10. A photovoltaic inverter, characterized in that: The invention comprises a connector and the data acquisition device according to any one of claims 1 to 9.

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