CN220822011U - Connector and photovoltaic module with same - Google Patents

Abstract

The utility model discloses a connector and a photovoltaic module with the same, wherein the connector comprises: the cable comprises a shell, two cables and pouring sealant, wherein the shell is provided with a containing cavity, one end of each cable stretches into the containing cavity, the other end of each cable is located outside the containing cavity, one ends of the two cables are connected, and the pouring sealant is filled in the containing cavity. According to the connector provided by the embodiment of the utility model, the joint of the two cables is arranged in the accommodating cavity of the shell, and the accommodating cavity is filled with the pouring sealant. Therefore, compared with the traditional photovoltaic connector, the water leakage point of the connector is reduced, so that the waterproof performance of the connector is greatly improved, the connector can be prevented from being invalid due to long-time use at sea, and the service life of the connector is prolonged.

Description

Connector and photovoltaic module with same

Technical Field

The utility model relates to the technical field of photovoltaic modules, in particular to a connector and a photovoltaic module with the same.

Background

In the related art, a photovoltaic connector generally includes a positive terminal and a negative terminal, and the positive terminal and the negative terminal are plugged to form the photovoltaic connector, and a gap exists at the connection position of the positive terminal and the negative terminal due to a processing error and an assembly error, and a sealing ring is generally used to fill the gap. However, when the photovoltaic connector is in an offshore environment, i.e. the photovoltaic connector faces high humidity, long term soaking, stormy waves, high salt alkalinity, etc., the sealing ring may have a risk of failure, resulting in a risk of water ingress in the photovoltaic connection, so that the photovoltaic connector fails.

Disclosure of utility model

The present utility model aims to solve at least one of the technical problems existing in the prior art. Therefore, an object of the present utility model is to provide a connector which greatly improves the waterproof property of the connector, can prevent the connector from being disabled due to long-term use at sea, and improves the service life of the connector.

Another object of the present utility model is to provide a photovoltaic module employing the connector.

An embodiment of the connector according to the first aspect of the present utility model includes: a housing having a receiving cavity; one end of each cable extends into the accommodating cavity, the other end of each cable is positioned outside the accommodating cavity, and the one ends of the two cables are connected; and the pouring sealant is filled in the accommodating cavity.

According to the connector provided by the embodiment of the utility model, the joint of the two cables is arranged in the accommodating cavity of the shell, and the accommodating cavity is filled with the pouring sealant. Therefore, compared with the traditional photovoltaic connector, the water leakage point of the connector is reduced, so that the waterproof performance of the connector is greatly improved, the connector can be prevented from being invalid due to long-time use at sea, and the service life of the connector is prolonged.

According to some embodiments of the utility model, the connector further comprises: the conducting piece is positioned in the accommodating cavity, and two ends of the conducting piece are respectively connected with the two cables.

According to some embodiments of the utility model, the conductive elements are tubular, each of the cables comprising a first connection section and a second connection section connected to each other, the first connection section and at least part of the second connection extending into the receiving cavity, the first connection extending into the conductive element; wherein the cross-sectional area of the first connecting section is smaller than the cross-sectional area of the second connecting section.

According to some embodiments of the utility model, the connector further comprises a protective tube, the protective tube being sleeved at least around the outer periphery of the conductive member.

According to some embodiments of the utility model, the protection tube comprises a first protection section and two second protection sections, the two second protection sections are respectively arranged at two ends of the first protection section, the first protection section is sleeved on the periphery of the first connection section, and each second protection section is sleeved on the periphery of the corresponding second connection section.

According to some embodiments of the utility model, the cross-sectional area of each of the second guard segments decreases gradually in a direction towards the conductive element.

According to some embodiments of the utility model, the protective tube is a heat shrink tube.

According to some embodiments of the utility model, the housing comprises a shell and two nuts, the two nuts are arranged at two ends of the shell, the nuts are in threaded connection with the shell, the two nuts and the shell jointly define the accommodating cavity, and each cable extends into the accommodating cavity through the nuts.

According to some embodiments of the utility model, the free end of the housing is provided with a plug, which is compressed between the nut and the housing, through which the cables each extend into the receiving chamber.

The photovoltaic module according to an embodiment of the second aspect of the present utility model comprises the connector according to the embodiment of the first aspect of the present utility model described above.

Additional aspects and advantages of the utility model 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 utility model.

Drawings

The foregoing and/or additional aspects and advantages of the utility model will become apparent and may be better understood from the following description of embodiments taken in conjunction with the accompanying drawings in which:

FIG. 1 is a schematic view of a connector according to an embodiment of the present utility model;

fig. 2 is a cross-sectional view of a connector according to an embodiment of the present utility model.

Reference numerals:

100: a connector;

1: a housing; 11: a housing; 111: a first housing section; 112: a second housing section; 12: a screw cap; 13: a receiving chamber; 2: a cable; 21: a first connection section; 22: a second connection section; 3: a conductive member; 4: a protective tube; 41: a first protection section; 42: a second protection section; 5: and (5) plugging.

Detailed Description

A connector 100 according to an embodiment of the first aspect of the present utility model is described below with reference to fig. 1-2. The connector 100 is applied to a photovoltaic module, but is not limited thereto.

As shown in fig. 1-2, a connector 100 according to an embodiment of the present utility model includes: the cable comprises a housing 1, two cables 2 and a potting compound (not shown).

Specifically, the housing 1 has a housing chamber 13. One end of each cable 2 extends into the accommodating cavity 13, the other end of each cable 2 is positioned outside the accommodating cavity 13, and the above-mentioned ends of the two cables 2 are connected. The potting adhesive is filled in the accommodating cavity 13.

For example, in the example of fig. 1-2, the housing 1 is generally cylindrical in shape, and the housing 1 is hollow in structure to facilitate the insertion of the cable 2 into the housing 1. Two cables 2 are located on both sides of the longitudinal direction (e.g., left-right direction in fig. 1) of the housing 1, respectively, one of the two cables 2 may serve as a positive terminal, and the other of the two cables 2 may serve as a negative terminal. During installation, two cables 2 can be connected into a whole, then the whole cables 2 are arranged in the shell 1 in a penetrating way, the connecting parts of the two cables 2 are located in the accommodating cavity 13 of the shell 1, the free ends of the two cables 2 extend out of the shell 1 and are convenient to be connected with other parts, and finally the filling and sealing parts are filled in the accommodating cavity 13, so that the connecting parts of the two cables 2 are wrapped by the filling and sealing glue.

From this, connector 100 need not distinguish positive negative pole, namely every cable 2 can act as positive terminal, also can act as negative terminal, and two cables 2 all encapsulate the chamber 13 that holds at shell 1, compare with traditional photovoltaic connector, saved the grafting step during the installation to reduced the point of leaking of connector 100, the pouring sealant has also played waterproof effect simultaneously, and then made connector 100 have better waterproof nature, can avoid connector 100 to use at sea for a long time and become invalid, improved connector 100's life.

According to the connector 100 of the embodiment of the utility model, the connection part of the two cables 2 is arranged in the accommodating cavity 13 of the shell 1, and the accommodating cavity 13 is filled with pouring sealant. Therefore, compared with the conventional photovoltaic connector, the water leakage point of the connector 100 is reduced, so that the waterproof property of the connector 100 is greatly improved, the connector 100 can be prevented from being disabled due to long-time use at sea, and the service life of the connector 100 is prolonged.

According to some embodiments of the present utility model, referring to fig. 1-2, the connector 100 further comprises a conductive member 3, wherein the conductive member 3 is located in the accommodating cavity 13, and two ends of the conductive member 3 are respectively connected to the two cables 2. That is, the two cables 2 are electrically connected by the conductive member 3. Therefore, compared with the traditional photovoltaic connector, the male terminal and the female terminal do not need to be distinguished to be connected to the positive terminal and the negative terminal, so that compared with the plugging mode of the photovoltaic connector 100, the contact point between the conductive piece 3 and the cable 2 is fewer, the poor contact between the conductive piece 3 and the cable 2 caused by wind and wave swing can be avoided, and the connection reliability of the conductive piece 3 and the cable 2 is effectively ensured.

According to some embodiments of the utility model, the conductive element 3 is tubular. Each cable 2 comprises a first connection section 21 and a second connection section 22 connected to each other, the first connection section 21 and at least part of the second connection extending into the receiving cavity 13, the first connection extending into the conductive element 3. As shown in fig. 2, the length of the first connecting section 21 is short compared to the length of the second connecting section 22, and the first connecting section 21 is located approximately in the middle of the second connecting section 22 and extends toward the center of the accommodating chamber 13. When the cable is installed, the first connecting section 21 and the part of the second connecting section 22 connected with the first connecting section extend into the accommodating cavity 13, so that the length of the cable 2 in the accommodating cavity 13 is increased, and the cable 2 is prevented from being pulled out of the shell 1. Simultaneously, stretch into electrically conductive piece 3 with first linkage segment 21 is whole, can increase electrically conductive piece 3 and cable 2's area of contact, avoid first linkage segment 21 to deviate from electrically conductive piece 3 to can effectively guarantee the electricity of two cables 2 and connect.

Wherein the cross-sectional area of the first connecting section 21 is smaller than the cross-sectional area of the second connecting section 22. Referring to fig. 2, since the cross-sectional area of the accommodating cavity 13 is slightly larger than that of the second connecting section 22, in order to ensure that the potting adhesive can wrap the junction of the two cables 2 (i.e., the conductive member 3 and the first connecting section 21), the distance between the conductive member 3/the first connecting section 21 and the inner wall of the accommodating cavity 13 needs to be increased, so that a space exists in the accommodating cavity 13 to be filled with the potting adhesive. Thus, by making the cross-sectional area of the first connecting section 21 smaller than that of the second connecting section 22, the distance between the conductive member 3/the first connecting section 21 and the inner wall of the accommodating chamber 13 can be increased, so that the filling of the potting compound into the accommodating chamber 13 is facilitated, and the waterproofing property of the connector 100 is ensured.

Further, as shown in fig. 2, the connector 100 further includes a protection tube 4, and the protection tube 4 is at least sleeved on the outer periphery of the conductive member 3. So set up, protection tube 4 can further play the guard action to electrically conductive piece 3, that is to say, even the pouring sealant appears the crack after long-time use or ageing leads to holding chamber 13 in intaking, protection tube 4 still can play the guard action to electrically conductive piece 3, reduces electrically conductive piece 3 and receives the risk of corruption, and can avoid electrically conductive piece 3 and cable 2 poor contact to can further improve connector 100's life.

Further, as shown in fig. 2, the protection tube 4 includes a first protection section 41 and two second protection sections 42, the two second protection sections 42 are respectively disposed at two ends of the first protection section 41, the first protection section 41 is sleeved on the outer periphery of the first connection section 21, and each second protection section 42 is sleeved on the outer periphery of the corresponding second connection section 22. Thus, the two second protection sections 42 are arranged in a central symmetry manner with respect to the first protection section 41, the cross-sectional area of the second protection section 42 is larger than that of the first protection section 41, the length of the second protection section 42 is smaller than that of the first protection section 41, the first connection section 21 and part of the second connection section 22 of each cable 2 are positioned in the protection tube 4, and the contact area between the cable 2 and the protection tube 4 can be increased while the conductive piece 3 is protected, so that the connection reliability of the protection tube 4 can be increased.

In some alternative embodiments, referring to fig. 2, the cross-sectional area of each second guard segment 42 gradually decreases in a direction toward the conductive member 3. That is, the junction of the second protection segment 42 and the first protection segment 41 can be smoothly transited, so that the accumulation of the potting adhesive at the junction can be avoided, and the potting adhesive can be uniformly distributed in the accommodating chamber 13.

Optionally, the protective tube 4 is a heat shrink tube. But is not limited thereto. When the cable is installed, the protection tube 4 is sleeved on the conductive piece 3 and the cable 2, and then the protection tube 4 is heated by a hot air gun, so that the protection tube 4 is attached to the cable 2 and the conductive piece 3.

According to some embodiments of the present utility model, the housing 1 includes a shell 11 and two nuts 12, the two nuts 12 are disposed at two ends of the shell 11, the nuts 12 are in threaded connection with the shell 11, the two nuts 12 and the shell 11 together define a receiving cavity 13, and each cable 2 extends into the receiving cavity 13 through the nuts 12. For example, in the example of fig. 1-2, the housing 11 includes a first housing section 11 and two second housing sections 112, the two second housing sections 112 being provided at both ends of the first housing section 11 in the longitudinal direction, respectively, the second housing section 112 having a smaller cross-sectional area than that of the first housing section 11, the second housing section 112 being formed with external threads, and the nut 12 being formed with internal threads, the nut 12 being mountable on the second housing section 112 by the cooperation of the internal threads and the external threads to block the end portion of the first housing section 11.

Further, the free end of the housing 11 is provided with a plug 5, the plug 5 being compressed between the nut 12 and the housing 11, each cable 2 extending through the nut 12 and the plug 5 into the receiving chamber 13. Referring to fig. 2, the plug 5 is interference fit with the nut 12 and the housing 11, respectively, to fill the gap between the nut 12 and the free end of the housing 11, thereby improving the tightness of the connector 100. In addition, the cable 2 and the plug 5 are also in interference fit, so that the plug 5 and the outer periphery of the cable 2 are free from gaps, and the tightness of the connector 100 can be further improved.

The specific installation process of the connector 100 according to the embodiment of the present utility model is as follows:

First, one of the two nuts 12 is pre-screwed on the housing 11; then, one of the two cables 2 is inserted into the shell 11 with the screw cap 12 and is connected with the other cable 2 through the conductive piece 3; then, sleeving a heat shrinkage pipe on the conductive piece 3 and the cable 2, and after crimping by crimping pliers, heating the heat shrinkage pipe by a hot air pipe to enable the heat shrinkage pipe to be attached to the conductive piece 3 and the cable 2; then filling pouring sealant into the accommodating cavity 13; finally, the two nuts 12 are screwed with the housing 11 to complete the installation.

A photovoltaic module (not shown) according to an embodiment of the second aspect of the present utility model comprises a connector 100 according to an embodiment of the first aspect of the present utility model described above.

According to the photovoltaic module provided by the embodiment of the utility model, the connector 100 is adopted, so that the service life of the photovoltaic module can be prolonged, and the maintenance cost of the photovoltaic module can be reduced.

Other constructions and operations of photovoltaic modules according to embodiments of the present utility model are known to those of ordinary skill in the art and will not be described in detail herein.

In the description of the present utility model, it should be understood that the terms "center," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "top," "bottom," "inner," "outer," and the like indicate or are based on the orientation or positional relationship shown in the drawings, merely to facilitate description of the utility model and simplify the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the utility model.

In the description of the present application, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present application will be understood in specific cases by those of ordinary skill in the art.

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 utility model. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiments or examples.

While embodiments of the present utility model 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 spirit and principles of the utility model, the scope of which is defined by the claims and their equivalents.

Claims (10)

1. A connector, comprising:

A housing having a receiving cavity;

One end of each cable extends into the accommodating cavity, the other end of each cable is positioned outside the accommodating cavity, and the one ends of the two cables are connected;

And the pouring sealant is filled in the accommodating cavity.

2. The connector of claim 1, further comprising:

The conducting piece is positioned in the accommodating cavity, and two ends of the conducting piece are respectively connected with the two cables.

3. The connector of claim 2, wherein the conductive members are tubular, each of the cables including a first connection section and a second connection section connected to each other, the first connection section and at least a portion of the second connection extending into the receiving cavity, the first connection extending into the conductive members;

wherein the cross-sectional area of the first connecting section is smaller than the cross-sectional area of the second connecting section.

4. A connector according to claim 3, further comprising a protective tube which is fitted around at least the outer periphery of the conductive member.

5. The connector of claim 4, wherein the protective tube comprises a first protective segment and two second protective segments, the two second protective segments are respectively disposed at two ends of the first protective segment, the first protective segment is sleeved on the periphery of the first connecting segment, and each second protective segment is sleeved on the periphery of the corresponding second connecting segment.

6. The connector of claim 5, wherein the cross-sectional area of each of the second guard segments decreases progressively in a direction toward the conductive member.

7. The connector of claim 4, wherein the protective tube is a heat shrink tube.

8. The connector of any one of claims 1-7, wherein the housing includes a shell and two nuts disposed at opposite ends of the shell, the nuts threadably coupled to the shell, the two nuts and the shell together defining the receiving cavity, each of the cables extending into the receiving cavity through the nuts.

9. The connector of claim 8, wherein the free end of the housing is provided with a plug, the plug being compressed between the nut and the housing, each of the cables extending into the receiving cavity through the nut and the plug.

10. A photovoltaic module comprising a connector according to any one of claims 1-9.