CN220774788U - PV terminal and electrical equipment - Google Patents

Abstract

The application discloses PV terminal and electrical equipment belongs to the photovoltaic field. The PV terminal comprises: a terminal core including a first conductive portion and a second conductive portion connected to each other, the first conductive portion for connection with a PV cable; the core seat comprises a third conductive part and a fourth conductive part which are connected with each other, wherein the third conductive part is used for being matched and connected with the second conductive part, and the fourth conductive part is used for being connected with the circuit board. According to the PV terminal provided by the embodiment, signals transmitted by the PV cable flow between the conductive parts after entering the terminal core from the first conductive parts, and the connection between the PV cable and the circuit board is realized through the terminal core and the core seat, so that the circuit board is not limited by the precision of the cable any more, and the problem of reliability reduction caused by deformation generated by bending of the circuit board is effectively solved.

Description

PV terminal and electrical equipment

Technical Field

The application belongs to the technical field of photovoltaics, and particularly relates to a PV terminal and electrical equipment.

Background

Currently, in the field of Photovoltaic power generation, an electrical device such as an inverter is connected to a solar panel through a PV (Photovoltaic) cable, and one inverter or other electrical device is typically provided with a plurality of PV terminals to which the PV cable is connected. The PV terminals are connected with a circuit board in an inverter or other electrical devices in a cable way, and the circuit board is limited by the precision of the cable, so that stress is generated on the circuit board, and the stress damage of devices is induced to reduce the reliability of the machine.

Disclosure of Invention

The present application aims to solve at least one of the technical problems existing in the prior art. Therefore, the PV terminal and the electrical equipment provided by the application enable signals transmitted by the PV cable to circulate among the conductive parts in the form of electric signals, so that the circuit board is not limited by the precision of the cable any more, and the problem that the reliability is reduced due to deformation caused by bending of the circuit board is effectively solved.

In a first aspect, the present application provides a PV terminal comprising: a terminal core including a first conductive portion and a second conductive portion connected to each other, the first conductive portion for connection with a PV cable; the core seat comprises a third conductive part and a fourth conductive part which are connected with each other, wherein the third conductive part is used for being matched and connected with the second conductive part, and the fourth conductive part is used for being connected with the circuit board.

According to the PV terminal, signals transmitted by the PV cable flow between the conductive parts after entering the terminal core from the first conductive part, the connection between the PV cable and the circuit board 300 is realized through the terminal core 100 and the core seat 200, the circuit board is not limited by the precision of the cable, and the problem that the reliability is reduced due to deformation caused by bending of the circuit board is effectively solved.

According to one embodiment of the present application, the second and third conductive portions of the PV terminal cooperate to form an interposed structure.

According to the PV terminal of this application, the terminal core seat plays the transfer effect, adopts to inserting the structure and realizes that there is not the cable between terminal core and the circuit board to be connected, avoids producing iron fillings and influences product quality.

According to one embodiment of the application, the second conductive portion of the PV terminal is provided with a first receptacle, and the third conductive portion is for insertion into the first receptacle.

According to one embodiment of the application, the third conductive portion of the PV terminal is provided with a second receptacle, into which the second conductive portion is intended to be inserted.

According to one embodiment of the application, the terminal core of the PV terminal further comprises a connection portion integrally connected between the first conductive portion and the second conductive portion.

According to one embodiment of the present application, the terminal core of the PV terminal is U-shaped or L-shaped.

According to one embodiment of the present application, the mating sections of the second and third conductive portions of the PV terminal are provided with an integral torsion spring structure.

According to one embodiment of the present application, the first conductive portion of the PV terminal is provided with an integral torsion spring structure or a cylindrical structure with the connection section of the PV cable.

According to one embodiment of the present application, the fourth conductive portion of the PV terminal is secured to the circuit board by soldering or by a patch.

According to one embodiment of the present application, the fourth conductive portion of the PV terminal is a soft connection structure.

According to one embodiment of the application, the terminal core of the PV terminal further comprises a plastic housing, the first conductive portion is embedded into the plastic housing, and the plastic housing is used for being fixed to the case.

In a second aspect, the present application provides an electrical device comprising the aforementioned PV terminal.

According to the electrical equipment, signals transmitted by the PV cable enter the terminal core from the first conductive part of the PV terminal and circulate among the conductive parts, the terminal core is connected with the circuit board through the core seat, the circuit board is not limited by the precision of the cable any more, and the problem that the reliability is reduced due to deformation caused by bending of the circuit board is effectively solved.

Additional aspects and advantages of the application will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the application.

Drawings

The foregoing and/or additional aspects and advantages of the present application will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings, wherein:

fig. 1 is one of the schematic structural diagrams of a PV terminal provided in an embodiment of the present application;

fig. 2 is one of schematic structural views of a terminal core provided in an embodiment of the present application;

FIG. 3 is a second schematic view of a terminal core according to an embodiment of the present disclosure;

FIG. 4 is a third schematic view of a terminal core according to an embodiment of the present disclosure;

FIG. 5 is a schematic diagram of a terminal core according to an embodiment of the present disclosure;

FIG. 6 is a schematic diagram of a terminal core according to an embodiment of the present disclosure;

FIG. 7 is a second schematic diagram of a PV terminal provided in an embodiment of the present application;

FIG. 8 is a third schematic structural view of a PV terminal provided in an embodiment of the present application;

FIG. 9 is a schematic structural view of a core print according to an embodiment of the present disclosure;

FIG. 10 is a second schematic structural view of a core print according to an embodiment of the present disclosure;

FIG. 11 is a third schematic structural view of a core print according to an embodiment of the present disclosure;

FIG. 12 is a schematic diagram of a core print according to an embodiment of the present disclosure;

FIG. 13 is a fifth schematic structural view of a core print provided in an embodiment of the present application;

FIG. 14 is a schematic view of a core print according to an embodiment of the present disclosure;

FIG. 15 is a seventh schematic structural view of a core print according to an embodiment of the present disclosure;

fig. 16 is one of the mounting schematic diagrams of the PV terminal provided in the embodiments of the present application;

FIG. 17 is a second schematic view of the installation of a PV terminal provided in an embodiment of the present application;

FIG. 18 is a third schematic view of the installation of a PV terminal provided in an embodiment of the present application;

fig. 19 is a fourth schematic view of the installation of PV terminals provided in an embodiment of the present application.

Reference numerals:

the terminal comprises a terminal core 100, a first conductive part 110, a second conductive part 120, a core print 200, a third conductive part 210, a fourth conductive part 220, a circuit board 300, a connecting part 400, a plastic case 500 and a box 600.

Detailed Description

Embodiments of the present application are described in detail below, examples of which are illustrated in the accompanying drawings, wherein the same or similar reference numerals refer to the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the drawings are exemplary only for the purpose of explaining the present application and are not to be construed as limiting the present application.

The following description refers to elements or components being "connected" or "coupled" together. As used herein, "connected" may refer to one element/component being mechanically coupled to (or directly communicating with) another element/component, and not necessarily directly. Likewise, "coupled" may mean that one element/component is directly or indirectly joined to (or directly or indirectly communicates with) another element/component, and not necessarily mechanically. However, it should be understood that although two elements are hereinafter described as being "connected" in one embodiment, similar elements may be "coupled" in alternative embodiments and vice versa. Thus, although the schematic depicted herein depicts an exemplary arrangement of elements, additional intermediate elements, devices, components, or members may still be present in a practical embodiment.

As shown in fig. 1, one embodiment of the present application provides a PV terminal that includes a terminal core 100 and a core print 200. The terminal core 100 includes a first conductive part 110 and a second conductive part 120 connected to each other, the first conductive part 110 being for connection with a PV cable; the core print includes a third conductive portion 210 and a fourth conductive portion 220 connected to each other, the third conductive portion 210 is configured to be cooperatively connected with the second conductive portion 120, and the fourth conductive portion 220 is configured to be connected with the circuit board 300.

The first conductive portion 110, the second conductive portion 120, the third conductive portion 210, and the fourth conductive portion 220 are all made of conductive materials, which may be common materials such as copper, aluminum, and graphite, or composite materials such as conductive paint. The conductive material used for each conductive portion may be the same as or different from each other.

The first conductive part 110 is provided with an interface to receive current for connection with the PV cable. The current transmitted by the PV cable is transmitted to the circuit board 300 through the first conductive portion 110, the second conductive portion 120, the third conductive portion 210, and the fourth conductive portion 220. The fourth conductive part 220 is electrically connected to the circuit board 300, i.e., is connected by a solid circuit capable of transmitting current, such as a copper foil or a wire. The circuit board 300 may be an EMC (Electromagnetic Compatibility ) board.

In some embodiments, the PV terminal may also include a housing, an integrated sensor, or the like. The housing of the PV terminal may be formed of an insulating material that separates the PV terminal from the outside. Signals are usually required to be collected in electrical equipment, so the PV terminals can be provided with corresponding sensors.

In the related art, the PV terminals are connected to the circuit board 300 by cables. According to the PV terminal provided in this embodiment, signals transmitted by the PV cable flow between the conductive parts after entering the terminal core 100 from the first conductive part 110, and the connection between the PV cable and the circuit board 300 is realized through the terminal core 100 and the core seat 200, so that the circuit board 300 is not limited by the cable precision any more, and the problem of reliability reduction caused by deformation generated by bending of the circuit board 300 is effectively solved.

In some embodiments, the second conductive portion 120 and the third conductive portion 210 of the PV terminal cooperate to form an interposed structure.

The second conductive portion 120 and the third conductive portion 210 have the same basic size, the third conductive portion 210 is configured to be matched with the second conductive portion 120, and the second conductive portion 120 and the third conductive portion 210 form an opposite insertion structure to connect the terminal core 100 and the core holder, so that the terminal core 100 holder plays a role in transferring.

In the related art, the PV terminals are connected by cables, and the tail portions are crimped to the terminals and are fixed to the terminal base by bolts, so that scrap iron is generated, and the product quality is affected.

According to the PV terminal provided by the embodiment, the connection between the terminal core 100 and the circuit board 300 is realized by adopting the opposite-inserting structure, and the bolt is not used any more for fixing, so that scrap iron is prevented from influencing the product quality.

Referring to fig. 2-6, in some embodiments, the terminal core 100 of the PV terminal further includes a connection portion 400, the connection portion 400 being integrally connected between the first conductive portion 110 and the second conductive portion 120.

The connection part 400 may have any structure. The connection part 400 is composed of a conductive material. The conductive material used in the connection portion 400 may be the same as one of the conductive portions or may be different from the conductive portions, and it is only necessary to ensure that the electrical signal is smoothly transmitted from the first conductive portion 110 to the second conductive portion 120 through the connection portion 400.

The connection part 400 may be integrally connected between the first conductive part 110 and the second conductive part 120 by welding or stamping, or the like.

In some embodiments, the terminal core 100 of the PV terminal is U-shaped or L-shaped.

As shown in fig. 2 to 5, when the terminal core 100 of the PV terminal has a U-shape, the shape of the connection part 400 includes, but is not limited to, a zigzag shape, a wavy shape, or a rectangular shape.

As shown in fig. 6, when the terminal core 100 of the PV terminal has an L-shape, the shape of the connection part 400 includes, but is not limited to, a right angle or an arc shape.

As shown in fig. 7, in some embodiments, the second conductive portion 120 of the PV terminal is provided with a first receptacle, and the third conductive portion 210 is configured to be inserted into the first receptacle.

The first jack may be any shape, and the structure of the third conductive portion 210 is matched with the first jack to form an opposite-plug structure. In the use process, the third conductive part 210 is only required to be inserted into the first jack of the second conductive part 120, so that the connection between the terminal core 100 and the core holder can be realized.

In some embodiments, a locking structure is disposed in the first jack of the second conductive portion 120, and when the third conductive portion 210 and the second conductive portion 120 are inserted in place, the fixed position of the third conductive portion 210 can be locked, so that the situation that the power supply is disconnected or the connection is poor due to unexpected disconnection between the two can be avoided.

As shown in fig. 8, in some embodiments, the third conductive portion 210 of the PV terminal is provided with a second receptacle into which the second conductive portion 120 is to be inserted.

The second jack may be any shape, and the structure of the second conductive part 120 is matched with the second jack to form an opposite-plug structure. In the use process, the second conductive part 120 is only required to be inserted into the first jack of the third conductive part 210, so that the connection between the terminal core 100 and the core holder can be realized.

In some embodiments, a locking structure is disposed in the first jack of the third conductive portion 210, and when the second conductive portion 120 and the third conductive portion 210 are inserted in place, the fixed position of the second conductive portion 120 can be locked, so that the situation that the two are disconnected by accident and poor in connection of the power supply can be avoided.

In some embodiments, the mating segments of the second conductive portion 120 and the third conductive portion 210 of the PV terminal are provided with an integral torsion spring structure.

The mating section of the second conductive portion 120 and the third conductive portion 210 refers to a portion where the second conductive portion 120 and the third conductive portion 210 overlap when they are inserted. The integral torsion spring structure means that the torsion spring structure exists in the second conductive part 120 and the third conductive part 210, and the contact reliability can be improved by using the integral torsion spring structure in the matching section of the second conductive part 120 and the third conductive part 210

In some embodiments, the first conductive portion 110 of the PV terminal is provided with an integral torsion spring structure or a cylindrical structure with the connection section of the PV cable.

The connection section of the first conductive portion 110 of the PV terminal and the PV cable refers to a portion of the first conductive portion 110 that may form an interface with the PV cable. The PV cable is connected to the port, transmitting current to the port. The connection end of the first conductive part 110 of the PV terminal and the PV cable is configured as a torsion spring structure or a cylindrical structure according to the user's needs, thereby improving contact reliability.

In some embodiments, the fourth conductive portion 220 of the PV terminal is secured to the circuit board 300 by soldering or a patch.

As shown in fig. 9 to 12, when the terminal core 100 of the PV terminal has a U shape, the fourth conductive portion 220 of the PV terminal may have any appearance, and is mainly used for realizing the fixed connection between the terminal core 100 seat and the circuit board 300, and realizing the transfer function.

In some embodiments, the fourth conductive portion 220 of the PV terminal may be further fixed to the circuit board 300 by a ferrule connection, a latch connection, an elastic connection, etc., all of which have advantages of high connection strength, good rigidity, and detachable connection portion 400.

In some embodiments, the fourth conductive portion 220 of the PV terminal is a soft connection structure.

As shown in fig. 13 to 15, when the terminal core 100 of the PV terminal has an L-shape, the fourth conductive portion 220 of the PV terminal has a flexible connection structure. The flexible connection structure may be made of a flexible wire, a copper wire, or an austenitic stainless steel, etc., and the fourth conductive part 220 of the PV terminal is provided as a flexible connection structure, and the core print is fixed to the circuit board 300 through the flexible connection structure, so that the problem of spatial displacement can be solved.

As shown in fig. 16-19, in some embodiments, the terminal core 100 of the PV terminal further includes a plastic case 500, the first conductive portion 110 is embedded in the plastic case 500, and the plastic case 500 is used to be fixed to the case 600.

The mold 500 may be provided to conform to the shape of the first conductive part 110 of the terminal core 100, and the first conductive part 110 may be embedded into the mold 500 and remain fixed. The first conductive part 110 and the plastic case 500 may be fixed by snap connection or the like. The plastic case 500 is fixed to the case 600 such that the terminal core 100 is fixed to the case 600, matching the use of the client.

The case 600 may be a case of an inverter, which is fixed to the plastic case 500 for fixing the first conductive part 110 of the terminal core 100.

The electrical equipment provided by the embodiment of the application comprises the PV terminal. The specific structure of the PV terminal may refer to the foregoing embodiment, and this embodiment is not described herein.

In some embodiments, the electrical device may be an inverter. The inverter is provided with a plurality of PV terminals, and the terminal core of PV terminal is connected with the PV cable, and the core print seat is connected with the control panel of inverter, and the signal of PV cable transmission is passed through the PV terminal and is transmitted to the control panel.

According to the electrical equipment, signals transmitted by the PV cable flow between the conductive parts after entering the terminal core 100 from the first conductive part 110 of the PV terminal, and the connection between the PV cable and the circuit board 300 is realized through the terminal core 100 and the core seat 200, so that the circuit board 300 is not limited by the precision of the cable, and the problem of reliability reduction caused by deformation generated by bending of the circuit board 300 is effectively solved.

The terms first, second and the like in the description and in the claims, are used for distinguishing between similar objects and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used may be interchanged, as appropriate, such that embodiments of the present application may be implemented in sequences other than those illustrated or described herein, and that the objects identified by "first," "second," etc. are generally of a type and not limited to the number of objects, e.g., the first object may be one or more. Furthermore, in the description and claims, "and/or" means at least one of the connected objects, and the character "/", generally means that the associated object is an "or" relationship.

In the description of the present specification, reference to the terms "one embodiment," "some embodiments," "illustrative embodiments," "examples," "specific examples," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present application. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiments or examples. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

While embodiments of the present application have been shown and described, it will be understood by those of ordinary skill in the art that: many changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the application, the scope of which is defined by the claims and their equivalents.

Claims (12)

1. A PV terminal, comprising:

a terminal core including a first conductive portion and a second conductive portion connected to each other, the first conductive portion for connection with a PV cable;

the core seat comprises a third conductive part and a fourth conductive part which are connected with each other, wherein the third conductive part is used for being matched and connected with the second conductive part, and the fourth conductive part is used for being connected with the circuit board.

2. The PV terminal of claim 1, wherein the second and third conductive portions cooperate to form an interposed structure.

3. The PV terminal according to claim 2, wherein the second conductive portion is provided with a first receptacle, and the third conductive portion is for insertion into the first receptacle.

4. The PV terminal according to claim 2, wherein the third conductive portion is provided with a second receptacle, the second conductive portion being for insertion into the second receptacle.

5. The PV terminal according to any one of claims 1-4, wherein the terminal core further comprises a connection portion integrally connected between the first and second conductive portions.

6. The PV terminal according to claim 5, wherein the terminal core is U-shaped or L-shaped.

7. The PV terminal according to any one of claims 1-4, wherein the mating sections of the second and third conductive portions are provided with an integral torsion spring structure.

8. The PV terminal according to claim 7, wherein the connection section of the first conductive portion and the PV cable is provided with an integral torsion spring structure or a cylindrical structure.

9. The PV terminal according to any one of claims 1-4, wherein the fourth conductive portion is fixed to the circuit board by soldering or a patch.

10. The PV terminal according to any one of claims 1-4, wherein the fourth conductive portion is a flexible connection structure.

11. The PV terminal according to any one of claims 1-4, wherein the terminal core further comprises a molded shell into which the first conductive portion is embedded, the molded shell being for securing to a housing.

12. An electrical device comprising a PV terminal according to any one of claims 1-11.