Connector and photovoltaic module with same

Abstract

The utility model relates to a connector and a photovoltaic assembly with the same. The connector comprises a first connector which comprises a first connector body, a plurality of sealing pieces formed on the first connector body and first conductive pieces located in the plurality of sealing pieces, the plurality of sealing pieces have the same center line, and the first conductive pieces are arranged in the plurality of sealing pieces. The cross sections of the sealing pieces are gradually reduced in the direction away from the first connector body. The first connector comprises a first connector body and a first conductive part, the second connector comprises a second connector body and a second conductive part, a plurality of sealing cavities are formed in the second connector body, each sealing cavity receives the corresponding sealing part and forms sealing connection with the sealing part, and the second conductive part is in contact with the first conductive part so as to form electric connection. The connector can form multi-layer variable-diameter waterproof sealing, the waterproof effect is remarkably improved, and the reliability and safety of the connector are ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of photovoltaic equipment, in particular to a connector and a photovoltaic component having the same. Background Art

[0002] Photovoltaic modules (or "solar panels") are the core components of solar power generation systems. They can directly convert sunlight into electrical energy using the photovoltaic effect. Photovoltaic modules have many advantages such as energy saving, environmental protection, renewable, and long service life, so they have broad application prospects in the field of solar power generation.

[0003] Photovoltaic modules usually include solar cells, back panels, fixed frames, anti-reflective glass, connectors and other components. Among them, the connector is generally installed on the back of the solar cell to establish a safe and reliable electrical connection between the solar cells. In order to minimize the power loss of the solar power generation system, the connector needs to provide effective energy transmission. However, when the photovoltaic module is operating outdoors, the connector is affected by the environment such as humidity and heat, and moisture can easily invade the inside of the connection, causing corrosion of the metal conductive parts inside the connector, resulting in connector contact failure and increased resistance, thereby reducing power generation efficiency.

[0004] Therefore, this field needs a new technical solution to solve the above problems. Utility Model Content

[0005] In order to solve or improve to a certain extent the technical problem of poor waterproof performance of connectors in the prior art, the utility model provides a connector. The connector comprises: a first connector, which comprises a first connector body, a plurality of seals formed on the first connector body, and a first conductive member located inside the plurality of seals, the plurality of seals having the same center line, and the cross-sections of the plurality of seals gradually decrease in a direction away from the first connector body; and a second connector, which comprises a second connector body and a second conductive member, a plurality of sealed cavities are formed inside the second connector body, each of the sealed cavities receives the corresponding seal and forms a sealed connection therewith, and the second conductive member contacts the first conductive member to form an electrical connection.

[0006] It can be understood by those skilled in the art that the connector of the utility model includes a first connector and a second connector that match each other. Among them, the first connector includes a first connector body, a plurality of seals and a first conductive member. The plurality of seals are formed on the first connector body and have the same center line. Along the direction away from the first connector body, the cross-section of the plurality of seals gradually decreases. The first conductive member is arranged inside the plurality of seals. The second connector includes a second connector body and a second conductive member. A plurality of sealed cavities are provided inside the second connector body, and each sealed cavity receives a corresponding seal and forms a sealed connection therewith. The second conductive member contacts the first conductive member to form an electrical connection. Therefore, when the first connector and the second connector are plugged into each other, the plurality of seals can be inserted into the plurality of sealed cavities that correspond thereto, forming a multi-layer variable-diameter waterproof seal, which significantly improves the waterproof effect and ensures the reliability and safety of the connector.

[0007] In the preferred technical solution of the above connector, the multiple seals include a first seal close to the first connector body and a second seal away from the first connector body; and the multiple sealed cavities include a first sealed cavity matched with the first seal and a second sealed cavity matched with the second seal. By arranging the first seal and the second seal on the first connector body, and arranging the first sealed cavity and the second sealed cavity respectively matched with the first seal inside the second connector body, it is possible to simplify the component structure and reduce the processing cost while ensuring the waterproof sealing effect.

[0008] In the preferred technical solution of the above connector, the first connector body further includes a protective sleeve formed on the side of the second seal away from the first seal, the protective sleeve extends along the center line direction and has a smaller cross section than the second seal; and an accommodating cavity for accommodating the protective sleeve is also formed inside the second connector. The cooperation between the protective sleeve and the accommodating cavity can further isolate moisture and improve waterproof performance.

[0009] In the preferred technical solution of the above connector, the first conductive member extends into the protective sleeve, and the second conductive member is positioned in the accommodating cavity. Through the above arrangement, it can be ensured that the first conductive member and the second conductive member are conveniently contacted to form an electrical connection.

[0010] In the preferred technical solution of the above connector, the first conductive member and the second conductive member are made of copper, aluminum, copper-zinc alloy or copper-aluminum alloy, so that they have good conductive properties.

[0011] In the preferred technical solution of the above connector, the first conductive member body and the second connector body are made of PPO, PC, PA or PU, so that they have good insulation and mechanical properties.

[0012] In the preferred technical solution of the above connector, the cross-section of the seal is circular, square or regular hexagonal to enrich its product types.

[0013] In the preferred technical solution of the above connector, a fixing buckle spaced apart from the plurality of seals is provided on the first connector body, and a fixing slot that can receive the corresponding fixing buckle and form a snap connection with it is formed inside the second connector body. The cooperation between the fixing buckle and the fixing slot can facilitate the first connector and the second connector to form a stable and firm snap fit, which can improve the installation efficiency and prevent the connector from loosening and slipping off.

[0014] In the preferred technical solution of the above connector, the fixing buckle includes a first fixing buckle and a second fixing buckle symmetrically arranged on both sides of the multiple seals, and the fixing slot includes a first fixing slot matched with the first fixing buckle and a second fixing slot matched with the second fixing slot. The fixing buckle is arranged as the first fixing buckle and the second fixing buckle symmetrically arranged on both sides of the multiple seals, and the fixing slot is arranged as the first fixing slot and the second fixing slot corresponding to them, so that the first connector can be stably fixed on the second connector with uniform force.

[0015] In order to solve or improve to some extent the technical problem of poor waterproof performance of connectors in the prior art, the utility model provides a photovoltaic assembly. The photovoltaic assembly comprises at least one connector according to any one of the above items. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The preferred embodiments of the present invention are described below in conjunction with the accompanying drawings, in which:

[0017] Figure 1 It is a structural schematic diagram of an embodiment of the first connector in the connector of the utility model;

[0018] Figure 2 It is a cross-sectional schematic diagram of an embodiment of the first connector in the connector of the utility model;

[0019] Figure 3 It is a structural schematic diagram of an embodiment of the second connector in the connector of the utility model;

[0020] Figure 4 It is a cross-sectional schematic diagram of an embodiment of the second connector in the connector of the utility model;

[0021] Figure 5 It is a cross-sectional schematic diagram of an embodiment of the connector of the utility model.

[0022] List of reference numerals:

[0023] 100. Connector; 110. First connector; 111. First connector body; 112. Sealing member; 1121. First sealing member; 1122. Second sealing member; 113. Protective cover; 114. First conductive member; 115. Fixing buckle; 1151. First fixing buckle; 1152. Second fixing buckle; 120. Second connector; 121. Second connector body; 122. Sealing cavity; 1221. First sealing cavity; 1222. Second sealing cavity; 123. Accommodating cavity; 124. Second conductive member; 125. Fixing slot; 1251. First fixing slot; 1252. Second fixing slot. DETAILED DESCRIPTION

[0024] The preferred embodiments of the present invention are described below with reference to the accompanying drawings. It should be understood by those skilled in the art that these embodiments are only used to explain the technical principles of the present invention and are not intended to limit the protection scope of the present invention.

[0025] It should be noted that, in the description of the present invention, terms such as "up", "down", "left", "right", "front", "back", "inside" and "outside" indicating directions or positional relationships are based on the directions or positional relationships shown in the drawings. This is merely for the convenience of description and does not indicate or imply that the device or element must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it cannot be understood as a limitation on the present invention.

[0026] In addition, it should be noted that in the description of the present invention, unless otherwise clearly specified and limited, the terms "installation", "setting", and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a direct connection, an indirect connection through an intermediate medium, or the internal connection of two components. For those skilled in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0027] In order to solve or improve to a certain extent the technical problem of poor waterproof performance of the connector in the prior art, the utility model provides a connector 100. The connector 100 includes: a first connector 110, which includes a first connector body 111, a plurality of seals 112 formed on the first connector body 111, and a first conductive member 114 located inside the plurality of seals 112, wherein the plurality of seals 112 have the same center line, and the cross-sections of the plurality of seals 112 gradually decrease along the direction away from the first connector body 111; and a second connector 120, which includes a second connector body 121 and a second conductive member 124, wherein a plurality of sealed cavities 122 are formed inside the second connector body 121, each sealed cavity 122 receives a corresponding seal 112 and forms a sealed connection therewith, and the second conductive member 124 contacts the first conductive member 114 to form an electrical connection.

[0028] Figure 1 It is a structural schematic diagram of an embodiment of the first connector in the connector of the utility model; Figure 2 It is a cross-sectional schematic diagram of an embodiment of the first connector in the connector of the utility model;

[0029] Figure 3 It is a structural schematic diagram of an embodiment of the second connector in the connector of the utility model; Figure 4 It is a cross-sectional schematic diagram of an embodiment of the second connector in the connector of the utility model; Figure 5 Schematic diagram of the cross section of the embodiment of the connector of the utility model. Figure 1-Figure 5 As shown, in one or more embodiments, the connector 100 of the present invention includes a first connector 110 and a second connector 120 that match each other.

[0030] like Figure 1 , Figure 2 and Figure 5 As shown, in one or more embodiments, the first connector 110 includes a first connector body 111, a plurality of seals 112, a first conductive member 114 and other components. Among them, the seals 112 and the first conductive member 114 and other components are arranged on the first connector body 111 to form a stable structure. The first connector body 111 has a roughly cylindrical shape. Alternatively, the first connector body 111 can also be set to other suitable shapes. In one or more embodiments, the material of the first connector body 111 is PPO (i.e., polyphenylene ether), PC (i.e., polycarbonate), PA (i.e., nylon) or PU (i.e., polyurethane), so that it has good insulation and mechanical properties.

[0031] Continue to see Figure 1 , Figure 2 and Figure 5In one or more embodiments, a plurality of sealing members 112 are formed at one end of the first connector body 111. Figure 1 and Figure 2 In the orientation shown, a plurality of seals 112 are arranged at the upper end of the first connector body 111. The plurality of seals 112 have the same center line and are arranged in a direction away from the first connector body 111 (based on Figure 1 and Figure 2 The cross-section of the plurality of seals 112 gradually decreases (in the direction shown, i.e., in the upward direction). In one or more embodiments, the seal 112 has a truncated cone (not marked in the figure) with a substantially circular cross-section. A suitable sealing ring (not marked in the figure) is provided on the circumferential side wall of the truncated cone. Alternatively, the cross-section of the seal 112 may also be arranged in a square, a regular hexagon or other suitable shape. In one or more embodiments, the plurality of seals 112 include a first seal 1121 and a second seal 1122 connected to each other. Among them, the first seal 1121 is close to the first connector body 111, and the second seal 1122 is away from the first connector body 111. The cross-sections of the first seal 1121 and the second seal 1122 are both circular, and the diameter of the second seal 1122 is smaller than the diameter of the first seal 1121. By arranging the plurality of seals 112 into the first seal 1121 and the second seal 1122, the component structure can be simplified and the processing cost can be reduced on the basis of satisfying the waterproof sealing effect. Alternatively, the number of the sealing members 112 may be 3, 4, or other suitable numbers.

[0032] Continue to see Figure 1 , Figure 2 and Figure 5 In one or more embodiments, the first connector 110 further includes a protective cover 113. The protective cover 113 is formed on a side of the second seal 1122 away from the first seal 1121. The protective cover 113 extends approximately along the center line of the seal 112. The cross-section of the protective cover 113 is smaller than the cross-section of the second seal 1122. In one or more embodiments, the protective cover 113 has a substantially circular cross-section. Alternatively, the cross-section of the protective cover 113 may also be configured to be a square ring, an elliptical shape, or other suitable shapes. In the assembled state, the protective cover 113 may be inserted into the accommodating cavity 123 of the second connector 120 to further isolate moisture and improve the waterproof effect.

[0033] Continue to see Figure 1 , Figure 2 and Figure 5In one or more embodiments, the first conductive member 114 is arranged inside the plurality of seals 112 so as to be protected by the seals 112. Specifically, one end of the first conductive member 114 extends out of the first connector body 111 so as to be connected to other external electrical components; the other end of the first conductive member 114 is arranged inside the seal 112 so as to be connected to the second conductive member 124 in the second connector 120. In one or more embodiments, the first conductive member 114 extends into the protective cover 113 so as to be more conveniently in contact with the second conductive member 124. The material of the first conductive member 114 is copper, aluminum, copper-zinc alloy, copper-aluminum alloy or other suitable metal materials, so that it has good electrical conductivity.

[0034] like Figure 1 , Figure 2 and Figure 5 As shown, in one or more embodiments, a fixing buckle 115 spaced apart from the plurality of sealing members 112 is further provided on the first connector body 111. Figure 1 In the orientation shown, the fixing buckle 115 is also formed at the upper end of the first connector body 111. The fixing buckle 115 extends vertically upward from the upper end of the first connector body 111. The fixing buckle 115 can cooperate with the fixing slot 125 on the second connector 120, so that the first connector 110 can be easily connected to the second connector 120 to form a stable and firm snap connection. In this way, the installation efficiency of the connector 100 is improved, and the connector can be prevented from loosening and slipping. In one or more embodiments, the fixing buckle 115 includes a first fixing buckle 1151 and a second fixing buckle 1152 symmetrically arranged on both sides of the plurality of seals 112. The first fixing buckle 1151 and the second fixing buckle 1152 are matched with the corresponding first fixing slot 1251 and the second fixing slot 1252 on the second connector 120, respectively, so that the connection between the first connector 110 and the second connector 120 is more stable and the force is more uniform. Alternatively, the number of fixing buckles 115 may be other suitable number greater or less than two.

[0035] like Figure 3 , Figure 4 and Figure 5 As shown, in one or more embodiments, the second connector 120 includes a second connector body 121 and a second conductive member 124. Among them, the second conductive member 124 is arranged in the second connector body 121. The second connector body 121 has a substantially cylindrical shape. Alternatively, the second connector body 121 can also be set to other suitable shapes. In one or more embodiments, the material of the second connector body 121 is PPO (i.e., polyphenylene ether), PC (i.e., polycarbonate), PA (i.e., nylon) or PU (i.e., polyurethane), so that it has good insulation and mechanical properties.

[0036] Continue to see Figure 3 , Figure 4 and Figure 5 In one or more embodiments, a plurality of sealed cavities 122 are provided inside the second connector body 121. The plurality of sealed cavities 122 have the same center line. Figure 3 and Figure 4 In the orientation shown, the second connector body 121 has a plug-in surface (not marked in the figure) located above it. In the assembled state, the plug-in surface faces the first connector 110. Along the direction away from the plug-in surface, the cross-section of the plurality of sealed cavities 122 gradually decreases. Through the above-mentioned arrangement, in the assembled state, each sealed cavity 122 can receive the corresponding seal 112 and form a sealed connection with it, so that a multi-layer variable diameter waterproof seal is formed between the first connector 110 and the second connector 120, which significantly improves the waterproof effect and ensures the reliability and safety of the connector 100. In one or more embodiments, the sealed cavity 122 includes a first sealed cavity 1221 and a second sealed cavity 1222 that are connected to each other. Among them, the first sealed cavity 1221 matches the first seal 1121, and the second sealed cavity 1222 matches the second seal 1122. The cross-sections of the first sealed cavity 1221 and the second sealed cavity 1222 are both circular, and the diameter of the second sealed cavity 1222 is smaller than the diameter of the first sealed cavity 1221. It should be pointed out that the specific shape, size and number of the sealing cavity 122 can also be adjusted according to actual needs, as long as it can match the sealing member 112 .

[0037] Continue to see Figure 4 and Figure 5 In one or more embodiments, a receiving cavity 123 for receiving the protective cover 113 is further provided inside the second connector body 121. The receiving cavity 123 is formed on a side of the second sealed cavity 1222 away from the first sealed cavity 1221. Figure 3 In the orientation shown, the accommodating cavity 123 is located on the right side of the second sealed cavity 1222, and the first sealed cavity 1221 is located on the left side of the second sealed cavity 1222. The accommodating cavity 123 has the same center line as the first sealed cavity 1221 and the second sealed cavity 1222. The accommodating cavity 123 may have a substantially circular cross-section so that the protective cover 113 can be easily inserted therein. Alternatively, the accommodating cavity 123 may also be configured in other suitable shapes as long as it can match the protective cover 113.

[0038] Continue to see Figure 4 and Figure 5In one or more embodiments, the second conductive member 124 is positioned in the accommodating cavity 123. Specifically, one end of the second conductive member 124 extends out of the second connector body 121 so as to be connected to other external electrical components; the other end of the second conductive member 124 is arranged in the sealed cavity 122 (i.e., the vertical projection of the second conductive member 124 falls in the vertical projection of the sealed cavity 122) so as to contact the first conductive member 114 in the first connector 110. Further, positioning the second conductive member 124 in the accommodating cavity 123 (i.e., the vertical projection of the second conductive member 124 falls in the vertical projection of the accommodating cavity 123) can make it easier for the second conductive member 124 to contact the first conductive member 114 arranged in the protective cover 113. The length of the second conductive member 124 can be adjusted according to actual needs, for example, it is only arranged inside the accommodating cavity 123 without extending into the second sealed cavity 1222, or it is arranged in the accommodating cavity 123 and extends into the second sealed cavity 1222, etc. In addition, the second conductive member 124 is made of copper, aluminum, copper-zinc alloy, copper-aluminum alloy or other suitable metal materials, so that it has good conductive properties.

[0039] like Figure 3-Figure 5 As shown, in one or more embodiments, a fixing slot 125 spaced apart from the sealing cavity 122 is further provided inside the second connector body 121. The fixing slot 125 is configured to extend from the plug-in surface substantially vertically toward the inside of the second connector body 121. The fixing slot 125 can cooperate with the corresponding fixing buckle 115 on the first connector 110, so that the first connector 110 is conveniently and firmly fixed on the second connector 120. In one or more embodiments, the fixing slot 125 includes a first fixing slot 1251 and a second fixing slot 1252 symmetrically arranged on both sides of the sealing cavity 122, so that the connection between the first connector 110 and the second connector 120 is more stable and the force is more uniform by matching with the corresponding first fixing buckle 1151 and the second fixing buckle 1152. Alternatively, the fixing slot 125 can also be set to other suitable numbers more or less than 2, as long as it can match with the fixing buckle 115.

[0040] The utility model also provides a photovoltaic assembly (not shown in the figure). The photovoltaic assembly includes the connector 100 described in any of the above embodiments. The photovoltaic assembly also includes but is not limited to components such as solar cells, back panels, fixed frames, and anti-reflective glass. The connector 100 is arranged on the back of the solar cell to establish a safe and reliable electrical connection between the solar cells.

[0041] So far, the technical solution of the present invention has been described in conjunction with the preferred embodiments shown in the accompanying drawings. However, it is easy for those skilled in the art to understand that the protection scope of the present invention is obviously not limited to these specific embodiments. Without departing from the principle of the present invention, those skilled in the art can make equivalent changes or substitutions to the relevant technical features, and the technical solutions after these changes or substitutions will fall within the protection scope of the present invention.

Claims

1. A connector, characterized in that: The connector comprises: A first connector, comprising a first connector body, a plurality of seals formed on the first connector body, and a first conductive member located within the plurality of seals, wherein the plurality of seals have a same center line and cross-sections of the plurality of seals gradually decrease in a direction away from the first connector body; and The second connector includes a second connector body and a second conductive member. A plurality of sealed cavities are formed inside the second connector body. Each sealed cavity receives a corresponding sealing member and forms a sealed connection therewith. The second conductive member contacts the first conductive member to form an electrical connection.

2. The connector according to claim 1, characterized in that: The plurality of seals include a first seal close to the first connector body and a second seal far from the first connector body; and The plurality of sealed cavities include a first sealed cavity matched with the first sealing member and a second sealed cavity matched with the second sealing member.

3. The connector according to claim 2, characterized in that: The first connector body further comprises a protective sleeve formed on a side of the second seal away from the first seal, the protective sleeve extending along the center line direction and having a smaller cross-section than the second seal; and An accommodating cavity for accommodating the protective sleeve is also formed inside the second connector.

4. The connector according to claim 3, characterized in that: The first conductive member extends into the protective sleeve, and the second conductive member is positioned in the accommodating cavity.

5. The connector according to claim 1, characterized in that: The first conductive member and the second conductive member are made of copper, aluminum, copper-zinc alloy or copper-aluminum alloy.

6. The connector according to claim 1, characterized in that: The first conductive member body and the second connector body are made of PPO, PC, PA or PU.

7. The connector according to claim 1, characterized in that: The cross section of the sealing element is circular, square or regular hexagonal.

8. The connector according to claim 1, characterized in that: A fixing buckle spaced apart from the plurality of seals is provided on the first connector body, and a fixing slot which can receive the corresponding fixing buckle and form a snap connection with the fixing buckle is formed inside the second connector body.

9. The connector according to claim 8, characterized in that: The fixing buckle comprises a first fixing buckle and a second fixing buckle which are symmetrically arranged on both sides of the plurality of seals, and the fixing slot comprises a first fixing slot respectively matched with the first fixing buckle and a second fixing slot respectively matched with the second fixing buckle.

10. A photovoltaic module, characterized in that: The photovoltaic assembly comprises at least one connector according to any one of claims 1-9.

Images