Protective plug of photovoltaic connector and photovoltaic connector assembly

Abstract

The utility model discloses a protection plug of a photovoltaic connector and a photovoltaic connector assembly. The protection plug is configured to be detachably sleeved on a plugging end of a male connector of the photovoltaic connector, and comprises a first body which is provided with an accommodating groove for the plugging end of the male connector to be inserted and a locking groove for a buckle on the connector to be inserted; after the protection plug sleeves the plugging end, the plugging end is located in the accommodating groove, the buckle is located in the locking groove, and the buckle abuts against the surface of the locking groove. The protection plug provided by the utility model can effectively play a protection role and prevent the photovoltaic connector from being influenced by dust and water. The accommodating groove and the locking groove are respectively arranged on the first body, the plugging end of the male connector can be inserted into the accommodating groove, and the buckle of the male connector can be inserted into the locking groove and is in abutting contact with the surface of the locking groove, so that double fixation between the protective plug and the male connector is realized, the connection is firmer, and the protective plug is not easy to fall off.

Description

Technical Field

[0001] The utility model belongs to the field of photovoltaic connectors, and in particular relates to a protective plug of a photovoltaic connector and a photovoltaic connector component. Background Art

[0002] Photovoltaic connectors are an indispensable component in solar photovoltaic power generation systems. They are mainly used to achieve electrical connections between photovoltaic panels, combiner boxes, controllers, inverters and other components. Photovoltaic connectors usually consist of two parts: male connectors and female connectors. They adopt a plug-in design to facilitate quick connection and disconnection during installation and maintenance. In addition to providing electrical connection functions, photovoltaic connectors also have safety features, such as preventing mis-insertion or reverse connection, to ensure the correct operation of the system.

[0003] When designing a photovoltaic connector, it is necessary to consider meeting the long-term use requirements under harsh outdoor environmental conditions, such as waterproof, dustproof, weather resistance and mechanical strength, and ensure stable current and low resistance transmission to reduce power loss. At the same time, due to engineering reasons, the photovoltaic connector may not be used immediately after installation, and it may take several months before it can officially work. During this period, the male and female connectors of the photovoltaic connector are not plugged together, and will be affected by water and dust when exposed to the air. Therefore, the photovoltaic connector needs to be equipped with corresponding protective plugs to prevent performance from being affected.

[0004] Some existing photovoltaic connectors are equipped with protective plugs, but these protective plugs are generally pluggable and can easily fall off during transportation or handling, thus failing to provide good protection. Summary of the invention

[0005] In view of the above technical problems, the utility model provides an improved photovoltaic connector protection plug and a photovoltaic connector assembly.

[0006] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0007] A protective plug for a photovoltaic connector, the protective plug being configured to be detachably sleeved on a plug-in end of a male connector of the photovoltaic connector, the protective plug comprising:

[0008] The first body is formed with a receiving groove for inserting the plug end of the male connector and a locking groove for inserting the buckle on the connector;

[0009] After the protective plug is sleeved on the plug-in end, the plug-in end is located in the receiving groove, the buckle is located in the locking groove, and the buckle is in tight contact with the surface of the locking groove.

[0010] Preferably, the receiving groove and the locking groove are located on the same side of the first body, and the center of the receiving groove is located on the central axis of the protective plug along the length direction.

[0011] Furthermore, the number of the locking grooves is two, and the two locking grooves are respectively arranged on opposite sides of the containing groove.

[0012] Furthermore, a first guiding inclined surface is also provided in the protective plug, and when the plug-in end of the male connector is inserted into the protective plug, the buckle and the first guiding inclined surface are in tight contact.

[0013] Furthermore, the first guide bevel is inclined from inside to outside toward the side close to the lock slot; there is also a gap between the lock slot and the first guide bevel, and when the plug-in end of the male connector is inserted into the protective plug, the plug-in end extends into the lock slot and passes through the gap and comes into tight contact with the first guide bevel.

[0014] A photovoltaic connector assembly comprises a male connector of a photovoltaic connector, and the photovoltaic connector assembly also comprises the above-mentioned protective plug.

[0015] Preferably, the male connector comprises:

[0016] Second entity;

[0017] A protrusion, wherein the receiving groove is used for inserting the protrusion, and the protrusion is connected to or integrally provided with the second body;

[0018] Buckle, the locking groove is used for engaging with the buckle, and the buckle is connected to or integrally provided with the second body;

[0019] After the male connector is inserted into the protective plug, the protrusion is located in the receiving groove, and the buckle is in tight contact with at least a portion of the protective plug.

[0020] Furthermore, the buckle and the protrusion are located on the same side surface of the second body, and a line connecting the geometric centers of the protrusion and the second body is perpendicular to a horizontal plane; the number of the buckles is two, and the two buckles are respectively arranged on opposite sides of the protrusion.

[0021] Furthermore, the end of the buckle away from the second body is provided with a hook portion for cooperating with the protective plug, and the hook portion is elastic; the hook portion is provided with an abutment surface on the side facing the second body, and after the male connector is inserted into the protective plug, the abutment surface and the first guide bevel are in tight contact.

[0022] Furthermore, the abutting surface is a second guiding inclined surface inclined from inside to outside toward one side close to the second body, and after the male connector is inserted into the protective plug, the second guiding inclined surface and the first guiding inclined surface are in close contact;

[0023] The hook portion is also provided with a third guiding inclined surface, and during the process of inserting the male connector into the protective plug, the third guiding inclined surface contacts the protective plug.

[0024] The utility model adopts the above solution, which has the following advantages compared with the prior art:

[0025] The protective plug in the utility model can effectively protect the photovoltaic connector from being affected by dust and water. By respectively providing a receiving groove and a locking groove on the first body, the plug end of the male connector can be inserted into the receiving groove, and the buckle of the male connector can be inserted into the locking groove and tightly contact the surface of the locking groove, thereby realizing double fixation between the protective plug and the male connector, making the connection more firm and not easy to fall off. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] In order to more clearly illustrate the technical solution of the present invention, the following briefly introduces 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 creative work.

[0027] Figure 1 This is a schematic diagram of the three-dimensional structure of the protective plug in the embodiment of the utility model;

[0028] Figure 2 It is a side view of the protective plug in the embodiment of the utility model;

[0029] Figure 3 This is a schematic diagram of the three-dimensional structure of the protective plug and the male connector in the embodiment of the utility model;

[0030] Figure 4 It is a schematic diagram of the cooperation between the protective plug and the male connector in the embodiment of the utility model;

[0031] Among them, 1. protective plug; 11. first body; 12. receiving groove; 13. locking groove; 14. first guide slope; 2. male connector; 21. second body; 22. raised portion; 23. buckle; 24. hook; 25. second guide slope; 26. third guide slope. DETAILED DESCRIPTION

[0032] The preferred embodiments of the present invention are described in detail below in conjunction with the accompanying drawings so that the advantages and features of the present invention can be more easily understood by those skilled in the art. It should be noted that the description of these embodiments is used to help understand the present invention, but 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 can be combined with each other as long as they do not conflict with each other.

[0033] In the following, only some exemplary embodiments are briefly described. As those skilled in the art will appreciate, the described embodiments may be modified in various ways without departing from the spirit or scope of the embodiments of the present invention. Therefore, the drawings and descriptions are considered to be exemplary and non-restrictive in nature.

[0034] In the description of the present utility model, Figure 2 As shown, the left side direction in the figure is "left", the right side direction in the figure is "right", the upper side direction in the figure is "up", and the lower side direction in the figure is "down". The definitions of the above directions are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0035] like Figure 1 and Figure 2 As shown, this embodiment includes a protective plug 1 of a photovoltaic connector, and the protective plug 1 is configured to be detachably sleeved on the plug-in end of the male connector 2 of the photovoltaic connector. The protective plug 1 includes a first body 11, a receiving groove 12 and a locking groove 13. Among them, the receiving groove 12 is located on the first body 11 for the plug-in end of the male connector 2 to be inserted, and the locking groove 13 is located on the first body 11 for the buckle 23 of the male connector 2 to be inserted. The protective plug 1 has at least a use state and a non-use state. When the protective plug 1 is in the use state, the plug-in end of the male connector 2 is inserted into the receiving groove 12, and the buckle 23 of the male connector 2 is inserted into the locking groove 13 and is in close contact with the surface of the locking groove 13, so that the receiving groove 12 and the locking groove 13 are closed. When the protective plug 1 is in the non-use state, the protective plug 1 is detached from the male connector 2.

[0036] The receiving groove 12 and the locking groove 13 are located on the same side of the first body 11, and the center of the receiving groove 12 is located on the central axis of the protective plug 1 along the length direction. Figure 1 It can be seen that the receiving groove 12 is opened in the middle position of one end of the first body 11. In this embodiment, the receiving groove 12 is generally circular or polygonal in a top view. The number of locking grooves 13 is preferably two, and the two locking grooves 13 are respectively arranged on opposite sides of the receiving groove 12.

[0037] The protective plug 1 is also provided with a first guiding inclined surface 14. When the protective plug 1 is in use (i.e., when the plug end of the male connector 2 is inserted into the protective plug 1), the buckle 23 of the male connector 2 and the first guiding inclined surface 14 are in close contact. Figure 2 It can be seen that the first guide slope 14 is inclined from the inside to the outside toward the side close to the lock groove 13. There is also a gap between the lock groove 13 and the first guide slope 14. When the protection plug 1 is switched from the non-use state to the use state, the male connector 2 is inserted into the lock groove 13 and passes through the gap and then contacts the first guide slope 14.

[0038] like Figure 3 and Figure 4 As shown, the present embodiment also includes a photovoltaic connector assembly, including a male connector 2 and the above-mentioned protective plug 1. The male connector 2 includes a second body 21, a protrusion 22 and a buckle 23. Among them, the protrusion 22 is the plug-in end of the male connector 2. Specifically, the protrusion 22 is connected to or integrally provided with the second body 21, and the receiving groove 12 is for the protrusion 22 to be inserted. The buckle 23 is connected to or integrally provided with the second body 21, and the locking groove 133 is used for the buckle 23 to be inserted therein, so that the buckle 23 and the protective plug 1 are snap-fitted. When the protective plug 1 is in use, the protrusion 22 is inserted into the receiving groove 12, the buckle 23 is inserted into the locking groove 13, and the buckle 23 is in close contact with at least a portion of the protective plug 1.

[0039] like Figure 3 As shown, the buckle 23 and the protrusion 22 are located on the same side surface of the second body 21. The line connecting the geometric centers of the protrusion 22 and the second body 21 is perpendicular to the horizontal plane, that is, the protrusion 22 is located in the middle of one side of the second body 21. The specific shape of the groove 12 is adapted to the shape of the protrusion 22, so that the protrusion 22 can be inserted into the groove 12 without any gap, effectively isolating dust and water. There are two buckles 23, and the two buckles 23 are respectively arranged on opposite sides of the protrusion 22. The provision of two buckles 23 can make the protective plug 1 and the male connector 2 more firmly connected. The overall size of the buckle 23 is also adapted to the lock groove 13.

[0040] The end of the buckle 23 away from the second body 21 is provided with a hook 24, the hook 24 cooperates with the protective plug 1, and the hook 24 is elastic. The hook 24 is provided with an abutting surface on the side facing the second body 21, and when the protective plug 1 is in use, the abutting surface and the first guide slope 14 are in close contact. Specifically, the abutting surface is a second guide slope 25 that is inclined from the inside to the outside toward the side close to the second body 21. In this embodiment, taking the central axis passing through the male connector 2 as a reference, the side close to the central axis is the inside, and the side away from the central axis is the outside. In this embodiment, preferably, when the protective plug 1 is in use, the second guide slope 25 is parallel to the first guide slope 14, and the second guide slope 25 is in close contact with the first guide slope 14. In some other embodiments, the abutting surface can also be set as a surface parallel to the horizontal plane, which is not limited here. In this embodiment, setting the abutting surface as an inclined surface can make the protective plug 1 and the male connector 2 more firmly connected and not easy to loosen.

[0041] The hook portion 24 is also provided with a third guide slope 26. Specifically, Figure 3As shown, the third guide slope 26 on the left buckle 23 is arranged toward the left side and tilted downward from the inside to the outside, and the third guide slope 26 on the right buckle 23 is arranged toward the right side and tilted downward from the inside to the outside. In this embodiment, when the protective plug 1 is switched between the use state and the non-use state, the third guide slope 26 contacts the protective plug 1. By providing the third guide slope 26, it is more convenient to insert the buckle 23 into the protective plug 1.

[0042] In summary, the photovoltaic connector protection plug and photovoltaic connector assembly in this embodiment have at least the following advantages:

[0043] 1. The protective plug can effectively protect the photovoltaic connector from dust and water;

[0044] 2. By respectively providing a receiving groove and a locking groove on the first body, the plug-in end of the male connector can be inserted into the receiving groove, and the buckle of the male connector can be inserted into the locking groove and tightly contact the surface of the locking groove, thereby realizing double fixation between the protective plug and the male connector, making the connection more firm and not easy to fall off;

[0045] 3. The protective plug has a first guiding bevel, and the male connector has a second guiding bevel. When the protective plug is in use, the first guiding bevel and the second guiding bevel are parallel and in close contact, which can make the connection between the protective plug and the male connector more secure and less likely to loosen.

[0046] As shown in this specification and claims, the terms "comprises" and "include" only indicate the inclusion of the steps and elements that have been clearly identified, and these steps and elements do not constitute an exclusive list, and the method or device may also include other steps or elements. The term "and / or" as used herein includes any combination of one or more of the relevant listed items.

[0047] It should be noted that, unless otherwise specified, when a feature is referred to as being "fixed" or "connected" to another feature, it can be directly fixed or connected to the other feature, or it can be indirectly fixed or connected to the other feature. In addition, the descriptions of up, down, left, right, etc. used in the present invention are only relative to the relative positional relationship of the components of the present invention in the accompanying drawings.

[0048] The above embodiment is only for illustrating the technical concept and features of the utility model, and is a preferred embodiment. Its purpose is to enable people familiar with the technology to understand the content of the utility model and implement it accordingly, and it cannot be used to limit the protection scope of the utility model. Any equivalent transformation or modification made according to the principle of the utility model should be included in the protection scope of the utility model.

Claims

1. A protective plug for a photovoltaic connector, characterized in that: The protective plug is configured to be detachably sleeved on the plug end of the male connector of the photovoltaic connector, and the protective plug includes: The first body is formed with a receiving groove for inserting the plug end of the male connector and a locking groove for inserting the buckle on the connector; After the protective plug is sleeved on the plug-in end, the plug-in end is located in the receiving groove, the buckle is located in the locking groove, and the buckle is in tight contact with the surface of the locking groove.

2. The protective plug of the photovoltaic connector according to claim 1, characterized in that: The receiving groove and the locking groove are located on the same side of the first body, and the center of the receiving groove is located on the central axis of the protective plug along the length direction.

3. The protective plug of the photovoltaic connector according to claim 2, characterized in that: The number of the locking grooves is two, and the two locking grooves are respectively arranged on two opposite sides of the containing groove.

4. The protective plug of the photovoltaic connector according to claim 2, characterized in that: A first guiding inclined surface is also provided in the protective plug. When the plug end of the male connector is inserted into the protective plug, the buckle and the first guiding inclined surface are in close contact.

5. The protective plug of the photovoltaic connector according to claim 4, characterized in that: The first guide bevel is inclined from inside to outside toward the side close to the lock slot; there is also a gap between the lock slot and the first guide bevel, and when the plug-in end of the male connector is inserted into the protective plug, the plug-in end extends into the lock slot and passes through the gap and comes into tight contact with the first guide bevel.

6. A photovoltaic connector assembly, comprising a male connector of a photovoltaic connector, characterized in that: The photovoltaic connector assembly further comprises a protective plug as claimed in any one of claims 1 to 5.

7. The photovoltaic connector assembly according to claim 6, characterized in that: The male connector comprises: Second entity; A protrusion, wherein the receiving groove is used for inserting the protrusion, and the protrusion is connected to or integrally provided with the second body; Buckle, the locking groove is used for engaging with the buckle, and the buckle is connected to or integrally provided with the second body; After the male connector is inserted into the protective plug, the protrusion is located in the receiving groove, and the buckle is in tight contact with at least a portion of the protective plug.

8. The photovoltaic connector assembly according to claim 7, characterized in that: The buckle and the protrusion are located on the same side surface of the second body, and the line connecting the geometric center of the protrusion and the second body is perpendicular to the horizontal plane; the number of the buckles is two, and the two buckles are respectively arranged on opposite sides of the protrusion.

9. The photovoltaic connector assembly according to claim 8, characterized in that: The end of the buckle away from the second body is provided with a hook portion for cooperating with the protective plug, and the hook portion is elastic; the hook portion is provided with an abutment surface on the side facing the second body, and after the male connector is inserted into the protective plug, the abutment surface and the first guide inclined surface are in tight contact.

10. The photovoltaic connector assembly according to claim 9, characterized in that: The abutting surface is a second guiding inclined surface inclined from the inside to the outside toward a side close to the second body, and the second guiding inclined surface is in close contact with the first guiding inclined surface; The hook portion is also provided with a third guiding inclined surface, and during the process of inserting the male connector into the protective plug, the third guiding inclined surface contacts the protective plug.

Images