Wiring terminal module of power equipment and photovoltaic system

Abstract

The utility model discloses a wiring terminal module of electrical equipment and a photovoltaic system, the wiring terminal module comprises a terminal seat and a terminal, the terminal seat comprises a first section and a second section which are connected in sequence, the terminal is connected with the first section, the first section is configured to pass through a terminal hole of the electrical equipment, and the second section is configured to pass through a terminal hole of the electrical equipment. The second section is configured to be connected with a cable, the first section is provided with a positioning surface matched with the hole wall of the terminal hole, and the positioning surface is a plane so as to be inserted into the terminal hole in the terminal seat in a set direction. The wiring terminal module provided by the utility model is fast in assembling speed and can ensure the orientation of the terminal seat.

Description

Technical Field

[0001] The utility model belongs to the field of electric power equipment, and in particular relates to a wiring terminal module of electric power equipment and a photovoltaic system. Background Art

[0002] Connecting photovoltaic modules and photovoltaic inverters requires the use of wiring terminals and connectors. The wiring terminals have connecting ends that removably connect to the connectors. One end of the connector connects to the photovoltaic module, and the other end connects to the wiring terminals. The wiring terminals and photovoltaic inverter are typically secured together using a locking nut. Specifically, the wiring terminals are inserted into an opening in the photovoltaic inverter housing and secured with a locking nut. This presents a certain problem: the orientation of the wiring terminals cannot be controlled during the locking nut, making it difficult to remove the connector terminals from the wiring terminals using a terminal assembly and removal fixture.

[0003] More specifically, there are three main solutions. The first is to fix the nut on the inside of the box and lock it by rotating the terminal. The disadvantage of this is that the orientation of the terminal is difficult to control, resulting in various orientations. Some orientations will directly affect whether the connection terminal and the terminal can be smoothly separated. If the orientation of the terminal is to be guaranteed, the locking torque is insufficient, the terminal is easy to loosen, and the OT end of the terminal will rotate with it during the rotation process. The production line needs to sort out the orientation of the OT end, affecting production efficiency and also having a high error rate; the second solution is to fix the terminal and rotate the nut on the inside of the box, but the internal space of the photovoltaic inverter may be insufficient, making it difficult to lock the nut from the inside; the third solution is that the box has its own threads, and no nuts are required. The terminal is directly locked to the box through the threads. The disadvantages are the same as the first solution. Utility Model Content

[0004] In order to solve the above technical problems, the utility model provides a terminal module for electric power equipment and a photovoltaic system, which has a fast assembly speed and can ensure the orientation of the terminal seat.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A terminal module for electrical equipment includes a terminal base and a terminal, the terminal base includes a first section and a second section connected in sequence, the terminal is connected to the first section, the first section is configured to be able to pass through the terminal hole of the electrical equipment, the second section is configured to connect a cable, the first section has a positioning surface that cooperates with the hole wall of the terminal hole, and the positioning surface is a plane so that the terminal base can be inserted into the terminal hole in a set orientation.

[0007] In a preferred embodiment, the first section includes a fixing column extending along the length direction of the terminal seat and at least two clips, the clips can be elastically deformed, the ends of the clips have lugs that can be clamped outside the terminal hole, and the positioning surface is located on the fixing column.

[0008] In a preferred embodiment, the terminal extends entirely along a first plane, and the positioning surface is parallel to or intersects with the first plane.

[0009] In a preferred embodiment, the terminal is provided with a screw hole.

[0010] In a preferred embodiment, the terminal module further includes a sealing member, which is disposed on the first section and located between the second section, the fixing column, and the buckle.

[0011] In a preferred embodiment, the sealing member includes a sealing ring, and the sealing ring is sleeved on the circumferential outer surface of the first section.

[0012] In a preferred embodiment, the sealing member includes a sealing gasket, the second section has a step surface facing the terminal, and the sealing gasket is provided on the step surface.

[0013] In a preferred embodiment, the second section is provided with a slot that cooperates with a terminal loading and unloading fixture.

[0014] The utility model also adopts the following technical solutions:

[0015] A photovoltaic system includes a photovoltaic component and a photovoltaic inverter. The photovoltaic system also includes the above-mentioned connection terminal, one end of the connection terminal is connected to the photovoltaic component, and the other end is connected to the power circuit board in the photovoltaic inverter.

[0016] In a preferred embodiment, the power of the photovoltaic inverter is 600-2250W.

[0017] In a preferred embodiment, the photovoltaic assembly includes solar panels, and the number of the solar panels is 1 to 4.

[0018] The present invention adopts the above solution, which has the following advantages compared with the prior art:

[0019] When the terminal block module of this utility model is inserted into an electrical device, the flat surface on the first section of the terminal block mates with the terminal hole of the electrical device to achieve positioning of the terminal block. This ensures the correct orientation of the terminal block when connecting the terminal block module and the electrical device, and facilitates assembly. When the terminal block module is inserted into place, a "click" sound is emitted, indicating that the installation is complete, making it convenient to use. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the technical solution of the present invention, the following is a brief introduction to the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0021] Figure 1 is a schematic diagram of a photovoltaic inverter according to an embodiment of the present invention;

[0022] Figure 2 is another schematic diagram of a photovoltaic inverter according to an embodiment of the present utility model;

[0023] Figure 3 for Figure 2 A partial enlarged view of point A in the middle;

[0024] Figure 4 is a side view of a photovoltaic inverter according to an embodiment of the present utility model;

[0025] Figure 5 is a three-dimensional diagram of the terminal module;

[0026] Figure 6 is another three-dimensional view of the terminal module;

[0027] Figure 7 for Figure 6 The main view of the terminal block module;

[0028] Figure 8 for Figure 6 Right side view of the terminal block module.

[0029] in,

[0030] 100, photovoltaic inverter; 101, power circuit board; 102, box; 103, hole wall;

[0031] 1. Terminal block module; 11. Terminal seat; 111. First section; 1111. Positioning surface; 1112. Fixing column; 1113. Buckle; 112. Second section; 12. Terminal; 121. Screw hole; 2. Lug; 3. Seal; 31. Sealing ring; 32. Sealing gasket; 4. Terminal hole; 41. First limiting surface; 42. Second limiting surface; 5. Cable; 6. Slot; 7. Second limiting column. DETAILED DESCRIPTION

[0032] The following describes in detail preferred embodiments of the present invention in conjunction with the accompanying drawings to make the advantages and features of the present invention more easily understood by those skilled in the art. It should be noted that the description of these embodiments is intended to facilitate understanding of the present invention and does not constitute a limitation of the present invention. In addition, the technical features involved in the various embodiments of the present invention described below may be combined with each other as long as they do not conflict with each other.

[0033] This embodiment provides a photovoltaic system, including a photovoltaic module, a photovoltaic inverter 100, and a terminal block module 1 for power equipment. One end of the terminal block 1 is connected to the photovoltaic module, and the other end is connected to a power circuit board 101 within the photovoltaic inverter 100 via a cable 5. The power equipment herein refers to the photovoltaic inverter 100. The photovoltaic module includes 1 to 4 solar panels. This means that the photovoltaic inverter is only connected to 1 to 4 solar panels. This allows maximum power tracking to be performed only for 1 to 4 solar panels, resulting in higher efficiency. The photovoltaic inverter has a power range of 600-2250W and is suitable for microinverters.

[0034] Further, refer to Figures 1 to 8 As shown, the terminal block module 1 of this embodiment includes a terminal block 11 and a terminal 12. The terminal block 11 includes a first section 111 and a second section 112 connected in sequence, and the terminal 12 is connected to the first section 111. The first section 111 is configured to be able to pass through the terminal hole 104 of the power equipment, and the second section 112 is configured to connect the cable 5. The second section 112 is provided with a slot 6 that cooperates with the terminal removal fixture. Specifically, the cable of the photovoltaic module is connected to the second section 112 through a connecting terminal. The connecting terminal is provided with a buckle, which passes through the slot 6 and is clamped on the second section 112. When it is necessary to disconnect the second section 112 and the connecting terminal, it is necessary to use a terminal removal fixture (not shown in the figure) to press the buckle to separate the terminal block 11 and the connecting terminal. Therefore, when connecting the terminal block module 1 to the box 102, it is necessary to limit the orientation of the terminal block 11 to facilitate the use of the terminal removal fixture.

[0035] Furthermore, the first section 111 has a positioning surface 1111 that cooperates with the hole wall 103 of the terminal hole 104. The positioning surface 1111 is a plane that allows the terminal base 11 to be inserted into the terminal hole 104 in a predetermined orientation. The terminal 12 extends entirely along a first plane, and the positioning surface 1111 is parallel to or intersects with the first plane. Specifically, in this embodiment, the positioning surface 1111 is parallel to the first plane. In other embodiments, the positioning surface 1111 may also intersect with the first plane. The terminal hole 4 has a first limiting surface 41 that contacts the positioning surface 1111.

[0036] The first section 111 includes a fixing post 1112 extending along the length of the terminal block 11 and at least two clips 1113. The clips 1113 are elastically deformable, and the ends of the clips 1113 have a lug 2 that can be snapped onto the outside of the terminal hole 104. The positioning surface 1111 is located on the fixing post 1112. The terminal hole 4 also has a second limiting surface 42, and the fixing post 1112 also has a curved surface. When the terminal block 11 is inserted into the box 102, the first limiting surface 41 contacts the positioning surface 1111, and the second limiting surface 42 contacts the curved surface of the fixing post 1112. When the terminal block 11 is inserted into the box body 102, the orientation of the terminal block 11 is controlled. Since the terminal block module 1 cannot rotate, the terminal 12 of the terminal block module 1 will not rotate either, and can be directly assembled with the power circuit board 101. Specifically, a screw hole 121 is provided on the terminal 12, and the screw can be directly inserted into the screw hole 121 and connected to the power circuit board 101. The screw hole 121 here can be a circular hole or a Y-shaped hole. In actual operation, the position of the box plug-in part can also be designed according to actual usage. Compared with the prior art, this embodiment omits the process of locking the nut, is more convenient during installation, can be installed in one step, is more convenient to install, and can quickly fix the position of the first surface.

[0037] The photovoltaic inverter also includes a top cover (not shown) for enclosing the housing 102. Before the top cover is applied to the housing 102, glue is poured into the housing 102. After the glue is poured, the buckles 1113 are secured to the housing 102 to prevent it from moving. It should be noted that due to the relatively small size and power of this photovoltaic inverter, there are no internal or external cooling fans. Therefore, glue is applied before the top cover is applied to the housing. This glue has high thermal conductivity and primarily serves to dissipate heat.

[0038] Reference Figure 6 As shown, the positioning surface 1111 is located on the first limiting column, the curved surface is located on the second limiting column 7, the buckle 1113 and the first limiting column are integrally arranged, and the buckle 1113 and the second limiting column 7 are integrally arranged. After the buckle 1113, the first limiting column and the second limiting column 7 are combined, the shape is similar to a "D" shape. Specifically in this embodiment, the number of buckles 1113 is specifically two, and the two buckles 1113 are arranged opposite to each other. After the installation is completed, that is, when the buckle 1113 and the box body 102 are matched, a "click" sound will be emitted, completing the assembly of the terminal block 11 and the box body 102.

[0039] In the prior art, a slot is provided on the terminal block, and then a rib on the housing is inserted into the slot. Once the rib is inserted into the slot, it is pressed and secured with an upper cover. However, there is a certain gap between the rib and the slot, and glue can easily overflow from the gap after glue is injected. The terminal block module 1 of this embodiment includes a seal 3, which is provided on the first section 111 and located between the second section 112, the fixing post 1112, and the buckle 1113. Furthermore, the seal 3 includes a sealing ring 31 and a sealing gasket 32. The sealing ring 31 is sleeved on the circumferential outer surface of the first section 111. The second section 112 has a stepped surface facing the terminal 12, and the sealing gasket 32 ​​is provided on the stepped surface. More specifically, the shape of the sealing ring 31 is substantially the same as that of the fixing post 1112, providing a good sealing effect and preventing glue from overflowing. When the terminal block module 1 is installed on the housing, the sealing gasket 32 ​​not only provides a sealing effect but also acts as a buffer.

[0040] The power circuit board 101 of this embodiment is assembled into the inner cavity of the box 102, and the terminal module 1 passes through the terminal hole 4 of the box 102. At this time, the positioning surface 1111 and the terminal hole 4 cooperate to limit the rotation of the terminal block 11, thereby controlling the orientation of the terminal block 1. The angle of the plug hole can be designed according to actual usage. Since the terminal block 1 cannot rotate, it is convenient for the terminal disassembly fixture to clamp the buckle on the connecting terminal to separate the terminal block 11 and the connecting terminal. At the same time, the terminal 12 will not rotate and can be directly assembled with the power circuit board 101. When the terminal block 1 continues to be pushed into the box 102, the buckle 1113 will cooperate with the box 102 to make a "click" sound, completing the assembly of the terminal block 1 and the box 102.

[0041] The terminal module 1 of this embodiment can be assembled to the photovoltaic inverter quickly, improving production line efficiency. At the same time, the relative position of the terminal 12 is restricted without the need for threaded locking, and the sealing between the terminal module 1 and the box 102 is better.

[0042] As used in this specification and claims, the terms "comprises" and "include" merely indicate the inclusion of the steps and elements specifically identified, and these steps and elements do not constitute an exclusive list; a method or apparatus may also include other steps or elements. The term "and / or" as used herein includes any combination of one or more of the associated listed items.

[0043] It should be noted that, unless otherwise specified, when a feature is referred to as being "fixed" or "connected" to another feature, it may be directly fixed or connected to the other feature or indirectly fixed or connected to the other feature. In addition, the terms "upper," "lower," "left," and "right" used in this utility model are only used with respect to the relative positions of the components of the utility model in the accompanying drawings.

[0044] The above embodiment is intended only to illustrate the technical concept and features of the present invention and is a preferred embodiment. Its purpose is to enable those familiar with the art to understand the content of the present invention and implement it accordingly. It is not intended to limit the scope of protection of the present invention. Any equivalent changes or modifications made based on the principles of the present invention shall be included in the scope of protection of the present invention.

Claims

1. A terminal module for power equipment, comprising a terminal block and a terminal, characterized in that: The terminal seat includes a first section and a second section connected in sequence, the terminal is connected to the first section, the first section is configured to be able to pass through the terminal hole of the power equipment, the second section is configured to connect the cable, the first section has a positioning surface that cooperates with the hole wall of the terminal hole, and the positioning surface is a plane so that the terminal seat can be inserted into the terminal hole in a set direction.

2. The terminal module according to claim 1, wherein: The first section includes a fixing column extending along the length direction of the terminal seat and at least two clips, the clips can be elastically deformed, the ends of the clips have lugs that can be clamped outside the terminal hole, and the positioning surface is located on the fixing column.

3. The terminal module according to claim 1, wherein: The terminal extends entirely along a first plane, and the positioning surface is parallel to or intersects with the first plane.

4. The terminal module according to claim 3, wherein: The terminal is provided with a screw hole.

5. The terminal module according to claim 2, wherein: The terminal module further includes a seal, which is arranged on the first section and located between the second section, the fixing column and the buckle.

6. The terminal module according to claim 5, characterized in that: The sealing member includes a sealing ring, and the sealing ring is sleeved on the circumferential outer surface of the first section.

7. The terminal module according to claim 5, characterized in that: The sealing member includes a sealing gasket, the second section has a step surface facing the terminal, and the sealing gasket is arranged on the step surface.

8. The terminal module according to claim 1, wherein: The second section is provided with a slot that cooperates with the terminal assembly and disassembly fixture.

9. A photovoltaic system comprising a photovoltaic module and a photovoltaic inverter, characterized in that: The photovoltaic system further comprises a connection terminal according to any one of claims 1 to 8, one end of the connection terminal being connected to the photovoltaic assembly, and the other end being connected to a power circuit board in the photovoltaic inverter.

10. The photovoltaic system according to claim 9, characterized in that: The power of the photovoltaic inverter is 600-2250W.

11. The photovoltaic system according to claim 9, characterized in that: The photovoltaic assembly includes solar panels, and the number of the solar panels is 1 to 4.

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