Interface separable photovoltaic junction box and solar photovoltaic module

Abstract

The application provides an interface detachable photovoltaic junction box and a solar photovoltaic module. The interface detachable photovoltaic junction box comprises a shell, a clamping member and a conductor member. The shell surrounds a mounting space. The clamping member is arranged at a first preset position of the mounting space. The clamping member has a limiting portion and a movable clamping portion. The clamping portion can be clamped to the limiting portion. The clamping portion also has a receiving cavity. The conductor member is arranged in the receiving cavity. When the clamping portion is clamped to the limiting portion, the conductor member can be mounted to the shell. When the clamping portion is detached from the limiting portion, the conductor member can be detached from the shell. When the interface detachable photovoltaic junction box is connected to the solar cell module, and when the conductor member has a poor contact or other problems, the conductor member can be detached from the shell, so that the conductor member can be individually detected or replaced, and the technical problem that the existing operation is complicated due to overall removal is solved.

Description

Technical Field

[0001] This application relates to the field of solar cell technology, and in particular to detachable photovoltaic junction boxes and solar photovoltaic modules. Background Technology

[0002] Junction boxes are an important component of photovoltaic modules. Their main function is to connect several solar cell modules in series and parallel through the junction box, and to transmit the electrical energy generated by the solar cell modules to the external circuit.

[0003] Currently, junction boxes generally adopt an integrated design. Specifically, glue is applied to the bottom of the junction box and it is attached to the busbar outlet of the solar cell module. The positive and negative terminals of the conductors of the solar cell module need to be connected by soldering. In addition, sealant is needed to ensure the airtightness of the contact points between the busbar and the positive and negative terminals of the conductors.

[0004] The above structural design has the following drawbacks: due to the integrated design of the junction box and the need to connect the busbar to the positive and negative terminals of the conductor by soldering, the entire box needs to be disassembled if there is an abnormal contact with the conductor, which is cumbersome and inefficient.

[0005] Therefore, there is an urgent need to provide a photovoltaic junction box with a detachable interface and a solar photovoltaic module to solve the technical problems existing in the prior art to a certain extent. Utility Model Content

[0006] The purpose of this application is to provide a detachable photovoltaic junction box and a solar photovoltaic module, which to a certain extent solves the technical problem in the prior art that the entire junction box needs to be removed once the conductor contact is abnormal due to the integrated structural design of the junction box.

[0007] This application provides a detachable photovoltaic junction box, including: The casing, which encloses the installation space; A snap-fit ​​component is disposed at a first preset position in the installation space; the snap-fit ​​component has a limiting part and a movable snap-fit ​​part, the snap-fit ​​part being able to snap onto the limiting part; the snap-fit ​​part also has a receiving cavity; A conductor member is disposed in the receiving cavity; when the snap-fit ​​portion snaps into the limiting portion, the conductor member can be installed in the housing; when the snap-fit ​​portion disengages from the limiting portion, the conductor member can be detached from the housing.

[0008] In the above technical solution, the limiting part is further defined as a limiting sleeve; Limiting holes are provided at intervals along the circumferential direction on the side wall of the limiting sleeve. The limiting hole extends from the upper edge of the limiting sleeve along the axial direction of the limiting sleeve and terminates at the second preset position of the limiting sleeve.

[0009] In the above technical solution, the limiting hole further includes a first limiting hole segment and a second limiting hole segment communicating with the first limiting hole segment; The first limiting hole section is opened on the side wall of the limiting sleeve and is spaced apart along the circumferential direction of the limiting sleeve; The starting end of the first limiting hole segment is the upper edge of the limiting sleeve, and the ending end is the second preset position of the limiting sleeve. The first limiting hole segment communicates with the interior of the limiting sleeve in the radial direction. The second limiting hole is opened at the second preset position of the limiting sleeve. The second limiting hole has an annular structure, with one end connected to the first limiting hole and the other end connected to the interior of the limiting sleeve, so that the cross-section of the limiting hole is L-shaped.

[0010] In the above technical solution, the snap-fit ​​part further includes a snap-fit ​​cylinder and a snap-fit ​​protrusion; The diameter of the outer side wall of the snap-fit ​​cylinder is equal to the diameter of the inner side wall of the limiting sleeve, so that the snap-fit ​​cylinder can be inserted into the limiting sleeve. The snap-fit ​​protrusions are spaced apart on the outer side wall of the snap-fit ​​cylinder, and the snap-fit ​​protrusions correspond to and are adapted to the first limiting hole section, so that when the snap-fit ​​cylinder is inserted into the limiting sleeve, the snap-fit ​​protrusions can pass through the first limiting hole section. When the snap-fit ​​protrusion moves from the first limiting hole section to the second limiting hole section, the snap-fit ​​cylinder is rotated at a preset angle, which enables the snap-fit ​​protrusion to snap into the limiting sleeve.

[0011] In the above technical solution, the snap-fit ​​component further includes a sealing element; The outer wall of the snap-fit ​​cylinder located below the snap-fit ​​protrusion has an annular defect portion recessed towards the inner wall, and an installation cavity is formed between the annular defect portion and the limiting sleeve. The seal is disposed in the mounting cavity.

[0012] In the above technical solution, the cross-section of the annular defect portion is further defined as a groove or a trapezoid.

[0013] In the above technical solution, a receiving cavity for placing conductor components is further formed at the central axis position of the snap-fit ​​cylinder. The end of the receiving cavity near the snap-fit ​​cylinder is a closed end, and the end away from the snap-fit ​​cylinder is an open end. The conductor component includes a conductor and an elastic element. The two ends of the elastic element are respectively connected to the closed end and the conductor, so that the conductor is disposed in the receiving cavity through the elastic element, and the conductor can extend out of the housing when the snap-fit ​​part snaps into the limiting part.

[0014] In the above technical solution, the housing is further provided with a through hole adapted to the conductor at the position corresponding to the conductor, so that the conductor can extend out of the housing through the through hole.

[0015] In the above technical solution, the interface-detachable photovoltaic junction box further includes a sealing layer; The sealing layer is disposed at the end of the limiting sleeve opposite to the snap-fit ​​cylinder and covers the snap-fit ​​cylinder.

[0016] This application also provides a solar photovoltaic module, including a solar panel and the aforementioned interface-detachable photovoltaic junction box; The solar panel includes a glass plate and a busbar. A through hole is formed on the glass plate. When the snap-fit ​​part is snapped into the limiting part, the conductor can extend out of the housing and abut against the busbar through the through hole.

[0017] Compared with the prior art, this application has the following beneficial effects: This application discloses a detachable photovoltaic junction box, comprising: The casing, which encloses the installation space; A snap-fit ​​component is disposed at a first preset position in the installation space; the snap-fit ​​component has a limiting part and a movable snap-fit ​​part, the snap-fit ​​part being able to snap onto the limiting part; the snap-fit ​​part also has a receiving cavity; A conductor member is disposed in the receiving cavity; when the snap-fit ​​portion snaps into the limiting portion, the conductor member can be installed in the housing; when the snap-fit ​​portion disengages from the limiting portion, the conductor member can be detached from the housing.

[0018] In summary, the conductor component is detachably connected to the housing by means of a snap-fit ​​component. That is, the conductor component and the housing of this application adopt a detachable connection method, which replaces the integrated design in the prior art. Compared with the prior art, when the interface detachable photovoltaic junction box of this application is connected to the solar cell module, and when the conductor component has problems such as poor contact, the conductor component can be removed from the housing. This allows for individual testing or replacement of the conductor component, solving the problem of cumbersome operation caused by the overall removal of the existing technology.

[0019] This application also provides a solar photovoltaic module, including a solar panel and the aforementioned interface-detachable photovoltaic junction box; the solar panel includes a glass plate and a busbar, and a through hole is formed in the glass plate. When the snap-fit ​​part is snapped into the limiting part, the conductor can extend out of the housing and abut against the busbar through the through hole. Because it includes the aforementioned interface-detachable photovoltaic junction box, it has all the beneficial effects of an interface-detachable photovoltaic junction box, which will not be elaborated here. Attached Figure Description

[0020] To more clearly illustrate the technical solutions in the specific embodiments of this application or the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this application. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0021] Figure 1 A schematic diagram of the interface-detachable photovoltaic junction box provided in this application from a first-view perspective; Figure 2 A cross-sectional view of the detachable photovoltaic junction box provided in this application from a second perspective; Figure 3 A schematic diagram of the bottom of the housing in the detachable photovoltaic junction box provided in this application; Figure 4 A schematic diagram of the first structural design of the snap-fit ​​component in the interface-detachable photovoltaic junction box provided in this application; Figure 5 A schematic diagram of a second structure for the snap-fit ​​component in the detachable photovoltaic junction box provided in this application; Figure 6 A schematic diagram of a third type of snap-fit ​​component in the interface-detachable photovoltaic junction box provided in this application; Figure 7 A top view of the snap-fit ​​portion in the detachable photovoltaic junction box provided in this application; Figure 8 A schematic diagram of the structure of the detachable photovoltaic junction box provided in this application connected to the busbar.

[0022] Reference numerals: 1-Housing; 101-Mounting space; 102-Through hole; 2-Snap-fit ​​component; 201-Limiting part; 202-Snap-fit ​​part; 203-Receiving cavity; 204-Limiting sleeve; 205-Limiting hole; 208-Snap-fit ​​cylinder; 209-Snap-fit ​​protrusion; 210-Seal; 211-Annular defect; 212-Mounting cavity; 213-Stepped surface; 215-Closed end; 216-Open end; 3-Conductor component; 301-Conductor; 302-Elastic component; 303-Diode; 304-Wire; 305-Cable; 4-Sealing layer; 5-Glass plate; 6-Bus strip. Detailed Implementation

[0023] The following detailed embodiments are provided to aid the reader in gaining a comprehensive understanding of the methods, apparatus, and / or systems described herein. However, various changes, modifications, and equivalents of the methods, apparatus, and / or systems described herein will be apparent upon understanding the disclosure of this application. For example, the order of operations described herein is merely illustrative and is not limited to the order presented herein; rather, changes that will be apparent upon understanding the disclosure of this application are possible, except for operations that must occur in a specific order. Furthermore, descriptions of features known in the art may be omitted for clarity and brevity. The features described herein may be implemented in different forms and should not be construed as limited to the examples described herein. Rather, the examples described herein are provided only to illustrate some of the many possible ways of implementing the methods, apparatus, and / or systems described herein that will be apparent upon understanding the disclosure of this application. Throughout this specification, when an element (such as a layer, region, or substrate) is described as being "on" another element, "connected to" another element, "bonded to" another element, "on" another element, or "covering" another element, it may be directly "on" another element, "connected to" another element, "bonded to" another element, "on" another element, or "covering" another element, or there may be one or more other elements in between. Conversely, when an element is described as being "directly on" another element, "directly connected to" another element, "directly bonded to" another element, "directly on" another element, or "directly covering" another element, there may be no other elements in between. As used herein, the term "and / or" includes any one of the relevant items listed and any combination of any two or more of them. Although terms such as "first," "second," and "third" may be used herein to describe individual components, assemblies, regions, layers, or portions, these components, assemblies, regions, layers, or portions are not limited by these terms. More precisely, these terms are used only to distinguish one component, assembly, region, layer, or part from another. Therefore, without departing from the teachings of the examples described herein, the first component, assembly, region, layer, or part referred to as such in the examples may also be referred to as the second component, assembly, region, layer, or part. For ease of description, spatial relational terms such as “above,” “upper,” “below,” and “lower” may be used herein to describe the relationship between one element and another, as shown in the accompanying drawings. Such spatial relational terms are intended to include not only the orientation depicted in the drawings but also the different orientations of the device in use or operation. For example, if the device in the drawings is flipped, an element described as being “above” or “upper” relative to another element will subsequently be “below” or “lower” relative to that other element.Therefore, the term "above" includes both "above" and "below" depending on the spatial orientation of the device. The device may also be positioned in other ways (e.g., oscillating 90 degrees or in other orientations), and the spatial relational terms used herein will be interpreted accordingly. The terminology used herein is for describing various examples only and is not intended to limit this disclosure. Unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. The terms "comprising," "including," and "having" enumerate the stated features, quantities, operations, components, elements, and / or combinations thereof, but do not exclude the presence or addition of one or more other features, quantities, operations, components, elements, and / or combinations thereof. Variations in the shapes shown in the figures may occur due to manufacturing techniques and / or tolerances. Therefore, the examples described herein are not limited to the specific shapes shown in the figures but include changes in shape that occur during manufacturing. The features of the examples described herein may be combined in various ways that will be apparent upon understanding the disclosure of this application. Furthermore, although the examples described herein have a wide variety of constructions, other constructions are possible as will be apparent upon understanding the disclosure of this application.

[0024] Example 1 To address the shortcomings of existing integrated junction box designs, which require complete removal in case of conductor 301 contact abnormalities, resulting in cumbersome and inefficient operations, and the 24-hour curing period required for the sealant used for sealing, rendering the modules unusable, this application proposes a detachable photovoltaic junction box. The following section details... Figures 1-8 This junction box is described in detail.

[0025] The detachable photovoltaic junction box includes a housing 1; specifically, combined with Figure 1 As shown, the housing 1 has a rectangular parallelepiped structure and encloses an installation space 101, which refers to the internal space of the housing 1. It should also be noted that the housing 1 is not limited to... Figure 1 The cuboid structure shown can also be a cube structure; of course, other shapes are also possible, depending on the specific working conditions. The detachable photovoltaic junction box also includes a snap-fit ​​component 2; combined with Figure 1 Specifically, the snap-fit ​​component 2 is positioned at a first preset position in the installation space 101, where the first preset position is determined according to... Figure 1 Taking the direction shown in the diagram as an example, the first preset position refers to the left side of the housing 1, which means that the snap-fit ​​member 2 is located on the left side of the housing 1. It should also be noted that the above-mentioned first preset position does not refer to a specific point but to a certain area; it is a term introduced to clarify the position of the snap-fit ​​member 2.

[0026] Specifically, it still combines Figure 1 As shown, the snap-fit ​​member 2 has a limiting part 201 and a snap-fit ​​part 202 that can snap onto the limiting part 201; that is to say, the snap-fit ​​member 2 consists of two parts, one of which is the limiting part 201 and the other is the snap-fit ​​part 202; when the snap-fit ​​part 202 snaps onto the limiting part 201, the snap-fit ​​member 2 can form a whole; when the snap-fit ​​part 202 is detached from the limiting part 201, the snap-fit ​​member 2 becomes a split structure.

[0027] Specifically, it still combines Figure 1 As shown, the snap-fit ​​portion 202 also has a receiving cavity 203, which extends in the vertical direction.

[0028] In one of the above-mentioned alternative methods, the limiting part 201 is integrally formed with the housing 1, that is, when the snap-fit ​​part 202 snaps into the limiting part 201, it is equivalent to the snap-fit ​​part 202 snapping into the housing 1; when the snap-fit ​​part 202 is removed from the limiting part 201, it is equivalent to the snap-fit ​​part 202 being able to be removed from the housing 1.

[0029] Another alternative approach is that the limiting part 201 and the housing 1 are also connected in a detachable manner, that is, the entire snap-fit ​​member 2 and the housing 1 are detachable; specifically, one of the side wall of the limiting part 201 facing the housing and the side wall of the housing 1 facing the limiting part 201 is provided with a slide rail extending in the axial direction, and the other is provided with a slider adapted to the slide rail, that is, the limiting part 201 and the housing 1 are connected by a slider and a slide rail, so that the limiting part 201 can be detachably connected from the housing 1.

[0030] The detachable photovoltaic junction box also includes conductor component 3, which is still combined with... Figure 1 As shown, the conductor member 3 is disposed in the receiving cavity 203. Furthermore, since the snap-fit ​​part 202 can snap onto or be detached from the limiting part 201, and since the conductor member 3 is disposed in the receiving cavity 203 of the snap-fit ​​part 202, it can be said that when the snap-fit ​​part 202 snaps onto the limiting part 201, it is equivalent to snapping the conductor member 3 onto the limiting part 201, and when the snap-fit ​​part 202 is detached from the limiting part 201, it is equivalent to detaching the conductor member 3 from the limiting part 201.

[0031] Furthermore, since the snap-fit ​​member 2 is provided on the housing 1, it can be fixed together with the housing 1 by integral molding. That is to say, when the snap-fit ​​part 202 snaps into the limiting part 201, it means that the conductor member 3 is fixed to the housing 1. When the snap-fit ​​member 2 is removed from the housing, it means that the conductor member 3 is removed from the housing 1.

[0032] In addition, since the snap-fit ​​member 2 is provided on the housing 1, it can also be connected to the housing 1 in a detachable manner. That is to say, the conductor member 3 can only be fixed to the housing 1 when the snap-fit ​​part 202 snaps into the limiting part 201 and the limiting part 201 snaps into the housing. When the snap-fit ​​member 2 is removed from the housing, it means that the conductor member 3 can be removed from the housing 1.

[0033] In summary, the conductor component 3 is detachably connected to the housing 1 by means of the snap-fit ​​component 2. That is, the conductor component 3 and the housing 1 of this application adopt a detachable connection method, which replaces the integrated design in the prior art. It does not require soldering to connect the busbar to the positive and negative terminals of the conductor component. Compared with the prior art, when the interface detachable photovoltaic junction box is connected to the solar cell module and when the conductor component has problems such as poor contact, the conductor component can be removed from the housing, thereby realizing the individual inspection or replacement of the conductor component. That is, it solves the technical problem of the cumbersome operation caused by the overall removal in the existing technology.

[0034] In addition, the disassembled conductor components 3 can be used to replace damaged parts, while undamaged parts can be reused, which saves costs to a certain extent.

[0035] In this embodiment, participants Figure 1 and combined Figure 2 As shown, the limiting part 201 is a limiting sleeve 204. Preferably, the limiting sleeve 204 and the housing 1 are integrally formed at the first preset position, which ensures the relative stability of the limiting sleeve 204 and the housing 1.

[0036] Specifically, the sidewall of the limiting sleeve 204 has a certain thickness, and limiting holes 205 are opened at intervals along its circumferential direction on its sidewall; the number of limiting holes 205 can be 2, 4, 6, 8, etc., and preferably, multiple limiting holes 205 are equally spaced along the axial direction.

[0037] Furthermore, the limiting hole 205 extends downward from the upper edge of the limiting sleeve 204 along the axial direction of the limiting sleeve 204 and terminates at the second preset position of the limiting sleeve 204. The second preset position here refers to a position of the limiting sleeve 204 near the lower edge, that is, the lower middle part of the limiting sleeve 204. The specific position needs to be determined according to the snap-fit ​​part 202 and the conductor member 3 described below.

[0038] The limiting hole 205 in the above scheme specifically includes a first limiting hole segment and a second limiting hole segment connected to the first limiting hole segment, that is, the limiting hole 205 is described in two segments.

[0039] The first limiting hole section is opened on the side wall of the limiting sleeve 204 and is spaced apart along the circumferential direction of the limiting sleeve 204. That is, there are multiple limiting holes 205 as described above, and the multiple limiting holes 205 are preferably spaced apart along the circumferential direction.

[0040] Furthermore, the starting end of the first limiting hole section is the upper edge of the limiting sleeve 204, and the ending end is the second preset position of the limiting sleeve 204. Since the first limiting hole 205 extends along the axial direction of the limiting sleeve 204, combined with... Figure 1 It can be seen that the axial direction of the limiting sleeve 204 is the vertical direction, which means that the first limiting hole segment extends in the vertical direction. Preferably, the first limiting hole segment is an elongated hole extending in the vertical direction.

[0041] Furthermore, the first limiting hole segment communicates with the interior of the limiting sleeve 204 in the radial direction. Taking the first limiting hole segment as an elongated hole as an example, the first limiting hole 205 has an upper side wall, a lower side wall, a left side wall, and a right side wall. The upper side wall is the opening end formed on the upper edge of the limiting sleeve 204, the lower side wall is formed at the second preset position of the limiting sleeve 204, and one of the left side wall or the right side wall is the bottom wall, while the other communicates with the interior of the limiting sleeve 204.

[0042] The second limiting hole section is opened at the second preset position of the limiting sleeve 204. The second limiting hole 205 has an annular structure, with one end connected to the first limiting hole section and the other end connected to the interior of the limiting sleeve 204, so that the cross-section of the limiting hole 205 is L-shaped.

[0043] In this embodiment, combined with Figure 1 And refer to Figure 4 and Figure 7 As shown, the snap-fit ​​part 202 includes a snap-fit ​​cylinder 208 and a snap-fit ​​protrusion 209.

[0044] Both the limiting sleeve 204 and the snap-fit ​​sleeve 208 are preferably cylindrical structures. The diameter of the outer wall of the snap-fit ​​sleeve 208 is equal to the diameter of the inner wall of the limiting sleeve 204, so that the snap-fit ​​sleeve 208 can be inserted into the limiting sleeve 204. That is, in actual use, the snap-fit ​​sleeve 208 needs to be inserted into the limiting sleeve 204.

[0045] The snap-fit ​​protrusions 209 are spaced apart on the outer wall of the snap-fit ​​cylinder 208. Optionally, there are 2, 4, 6, 8, etc. snap-fit ​​protrusions 209. More preferably, multiple snap-fit ​​protrusions 209 are spaced apart. In addition, combined with Figure 1 As shown, optionally, the snap-fit ​​protrusion 209 is disposed on the upper edge of the snap-fit ​​cylinder 208. Of course, this is not limited to... Figure 1In the structure, if space permits, the snap-fit ​​protrusion 209 can also be set in the middle or even the lower part of the snap-fit ​​cylinder 208.

[0046] The snap-fit ​​protrusion 209 corresponds to and is adapted to the first limiting hole segment, so that when the snap-fit ​​cylinder 208 is inserted into the limiting sleeve 204, the snap-fit ​​protrusion 209 can pass through the first limiting hole segment. Specifically, the number of first limiting hole segments is preferably equal to the number of snap-fit ​​protrusions 209, that is, the first limiting hole segments and snap-fit ​​protrusions 209 correspond one-to-one. However, depending on the actual situation, the number of first limiting hole segments may not correspond one-to-one with the number of snap-fit ​​protrusions 209. But when the number of first limiting hole segments does not correspond to the number of snap-fit ​​protrusions 209, it must be ensured that the number of first limiting hole segments is greater than the number of snap-fit ​​protrusions 209, that is, it must be ensured that when the snap-fit ​​cylinder 208 is inserted into the limiting sleeve 204, there are enough first limiting hole segments on the limiting sleeve 204 to allow the snap-fit ​​protrusions 209 on the snap-fit ​​cylinder 208 to pass through.

[0047] When the snap-fit ​​protrusion 209 moves from the first limiting hole section to the second limiting hole section, the snap-fit ​​cylinder 208 is rotated at a preset angle, so that the snap-fit ​​protrusion 209 snaps into the limiting sleeve 204. Since the limiting sleeve 204 is integrally formed with the housing 1, the snap-fit ​​protrusion 209 will be limited to the housing 1 at this time.

[0048] The aforementioned preset angle is any angle, as long as it is ensured that the locking protrusion 209 after rotation does not correspond to the first limiting hole segment. In other words, after rotation, it is ensured that the locking protrusion 209 and the first limiting hole segment are offset from each other. In this way, there is no channel in the first limiting hole segment for the locking protrusion 209 to pass through, thereby limiting the connectable protrusion to the limiting sleeve 204. Taking four limiting holes 205 and four snap-fit ​​protrusions 209 as an example, the preset angle is between 0-90°, preferably 45°. That is, when the snap-fit ​​protrusion 209 passes through the first limiting hole section and reaches the second preset position, the snap-fit ​​sleeve 208 is rotated at 45° so that the snap-fit ​​protrusion 209 is no longer in the corresponding first limiting hole section, thereby limiting the snap-fit ​​protrusion 209 within the limiting sleeve 204. Since the conductor component 3 is provided in the snap-fit ​​part 202, the conductor component 3 is further limited within the limiting sleeve 204. Since the limiting sleeve 204 is integrally formed in the housing 1, the conductor component 3 is fixed to the housing 1.

[0049] In this embodiment, combined with Figure 1 As shown, a receiving cavity 203 for placing the conductor component 3 is formed at the central axis position of the snap-fit ​​cylinder 208. The end of the receiving cavity 203 near the snap-fit ​​cylinder 208 is a closed end 215, and the end away from the snap-fit ​​cylinder is an open end 216. Figure 4As shown, the top of the receiving cavity 203 is sealed, forming a closed end 215, while the bottom of the receiving cavity 203 is open, forming an open end 216. In other words, as... Figure 1 As shown, the snap-fit ​​cylinder 208 has a receiving cavity 203. The bottom wall of the receiving cavity 203 is in communication with the outside, while the top wall of the receiving cavity 203 is not in communication with the outside.

[0050] Specifically, the conductor component 3 includes a conductor 301 and an elastic element 302. The two ends of the elastic element 302 are connected to the closed end 215 and the conductor 301, respectively. Specifically, the top end of the elastic element 302 is connected to the closed end 215, and the bottom end of the elastic element 302 is connected to the conductor 301. In practice, hooks can be provided at the closed end 215 and the top of the conductor 301, with the two ends of the elastic element 302 hooked onto these hooks. Optionally, the elastic element 302 can be a spring, with the two ends of the spring connected to the closed end 215 and the top end of the conductor 301, respectively.

[0051] Furthermore, in combination Figure 3 As shown, the housing 1 has a through hole 102 that is adapted to the conductor 301 at the position corresponding to the conductor 301. The adaptation here refers to the matching of shape and size; that is, if the conductor 301 is cylindrical, then the through hole 102 is preferably a round hole. Of course, if the through hole 102 is square, then the diagonal length of the square through hole 102 must be equal to the diameter of the conductor 301, so that the conductor 301 can extend out of the housing 1 through the through hole 102.

[0052] It is worth noting that when there is no glass plate below the detachable photovoltaic junction box, and when the conductor component is installed inside the housing, the elastic element is in its natural state, and conductor 301 extends out of housing 1. Combined with... Figure 8 As shown, in actual use, firstly, the glass plate (glass plate 5 has a busbar 6, and the glass plate 5 has a hole corresponding to the conductor position, which is connected by the busbar 6. The busbar 6 is part of the battery, and this part is not within the scope of protection of this application, and is also understood by those skilled in the art, so it will not be described here) is placed below the interface detachable photovoltaic junction box. Then, the remaining part of the interface detachable photovoltaic junction box, except for the conductor component, is firmly glued to the glass plate 5. Finally, the snap-fit ​​component is pressed and screwed to the housing in the above manner. Since the conductor component is set on the snap-fit ​​component, the conductor component is fixed to the housing at this time. Also, since the glass plate (glass plate 5 has a busbar 6) is below the conductor component, the glass plate, in other words, the busbar 6 at this time has a certain resistance to the conductor. The spring is compressed, and the conductor can firmly abut against the busbar 6 under the action of the spring's elastic force.

[0053] It should also be noted that since the elastic element 302 is a spring, it has a certain degree of elasticity. Therefore, when connecting it to the busbar 6, springs with different spring forces are required to accommodate glass plates 5 of different thicknesses. Specifically, the glass plate 5 has a certain thickness, and the busbar 6 is generally located at the center of the glass plate 5 and extends along its length. When the glass plate 5 is relatively thick, and the conductor 301 abuts against the busbar 6, the spring pushes the conductor 301 out of a larger portion of the housing 1, allowing the conductor 301 to contact the busbar 6. When the glass plate 5 is relatively thin, and the conductor 301 abuts against the busbar 6, the spring pushes the conductor 301 out of a smaller portion of the housing 1, allowing the conductor 301 to contact the busbar 6. In other words, in this case, the conductor 301 compresses the spring more.

[0054] Furthermore, it still combines Figure 1 As shown, the conductor component 3 also includes a diode 303 and a wire 304. One end of the diode 303 is connected to the conductor 301 via the wire 304, and the other end of the diode 303 can be connected to the cable 305 outside the housing 1 via the wire 304. Thus, the electrical energy on the battery is conducted to the external cable 305 through the busbar 6, conductor 301, wire 304, and diode 303, and is used by other devices.

[0055] In addition, combined Figure 1 As shown, wire 304 is connected to conductor 301 and passes through spring, closed end 215, limiting sleeve 204 in sequence to connect to diode 303.

[0056] In this embodiment, to ensure the sealing of the conductor component 3 and prevent water from entering the housing 1, therefore, in combination with Figure 1 As shown, the snap-fit ​​component 2 also includes a seal 210.

[0057] Specifically, the outer wall of the snap-fit ​​cylinder 208 located below the snap-fit ​​protrusion 209 has an annular defect 211 recessed towards the inner wall. That is, this defect surrounds the outer wall of the snap-fit ​​cylinder 208. The annular defect 211 can limit the installation cavity 212 formed between the sleeve 204. The sealing member 210 is disposed in the installation cavity 212, thereby sealing the snap-fit ​​cylinder 208 and the limiting sleeve 204 to prevent water from entering the interior of the housing 1 through the gap formed between the snap-fit ​​cylinder 208 and the limiting sleeve 204.

[0058] Of course, depending on the actual situation, the sealing strip can also be in the form of multiple segments, with multiple sealing segments arranged at intervals in the annular defect 211. Optionally, the sealing element is an elastic sealing strip.

[0059] exist Figure 4 The diagram illustrates a structure where the cross-section of the annular defect 211 is grooved, allowing the seal to fit the groove and thus be annular. Figure 5 and Figure 6 The paper presents a structure in which the cross-section of the annular defect 211 is trapezoidal and has multiple continuous stepped surfaces 213. The seal also has a structure with continuous stepped surfaces 213.

[0060] Furthermore, it still combines Figure 1 As shown, the interface detachable photovoltaic junction box also includes a sealing layer 4; the sealing layer 4 is disposed at the end of the limiting sleeve 204 away from the snap-fit ​​cylinder 208 and covers the snap-fit ​​cylinder 208, which can seal the snap-fit ​​cylinder 208. Since the conductor component 3 is disposed inside the snap-fit ​​cylinder 208, the conductor component 3 is also sealed, preventing water from flowing from the top of the housing 1 into the housing 1.

[0061] In summary, the use of sealing layer 4 and sealing ring achieves double-layer sealing of conductor component 3, resulting in better sealing performance. Compared with the sealant process in the prior art, it has stronger sealing performance and a simpler installation process.

[0062] Furthermore, since this application does not use a sealant for sealing, there is no need to wait for the sealant to cure for 24 hours, thus shortening the production cycle and improving work efficiency.

[0063] Example 2 This application also provides a solar photovoltaic module, including a solar panel and the aforementioned interface-detachable photovoltaic junction box.

[0064] The solar panel includes a glass plate and a busbar disposed on the glass plate. The busbar has through holes along the glass plate. When the snap-fit ​​part snaps into the limiting part, the conductor extends out of the housing and abuts against the busbar under the action of spring force.

[0065] Similarly, in actual use, the glass plate is first placed below the detachable photovoltaic junction box. Then, the remaining part of the detachable photovoltaic junction box, except for the conductor component, is firmly glued to the glass plate 5. Finally, the snap-fit ​​component is pressed and screwed into the housing in the above manner. Since the conductor component is set on the snap-fit ​​component, the conductor component is fixed to the housing. Also, since the glass plate is below the conductor component, the glass plate, in other words, the busbar 6 has a certain resistance to the conductor. The spring is compressed, and the conductor can firmly abut against the busbar 6 under the elastic force of the spring.

[0066] In summary, the detachable connection between the conductor component 3 and the housing 1 in this application replaces the integrated design in the prior art. It eliminates the need to use solder to connect the busbar to the positive and negative terminals of the conductor component. Compared with the prior art, when the detachable photovoltaic junction box is connected to the solar cell module and the conductor component has problems such as poor contact, the conductor component can be removed from the housing. This allows for individual testing or replacement of the conductor component, thus solving the problem of cumbersome operation caused by the overall removal in the existing technology.

[0067] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this application.

Claims

1. A photovoltaic junction box with a detachable interface, characterized in that, include: The housing (1) surrounds an installation space (101). A snap-fit ​​member (2) is disposed at a first preset position in the installation space (101); the snap-fit ​​member (2) has a limiting part (201) and a movable snap-fit ​​part (202), the snap-fit ​​part (202) being able to snap onto the limiting part (201); the snap-fit ​​part (202) also has a receiving cavity (203). Conductor member (3) is disposed in the receiving cavity (203); when the snap-fit ​​part (202) snaps into the limiting part (201), the conductor member (3) can be installed in the housing (1); when the snap-fit ​​part (202) disengages from the limiting part (201), the conductor member (3) can be removed from the housing (1).

2. The detachable photovoltaic junction box according to claim 1, characterized in that, The limiting part is a limiting sleeve (204); Limiting holes (205) are provided at intervals along the circumferential direction on the side wall of the limiting sleeve (204). The limiting hole (205) extends from the upper edge of the limiting sleeve (204) along the axial direction of the limiting sleeve (204) and terminates at the second preset position of the limiting sleeve (204).

3. The detachable photovoltaic junction box according to claim 2, characterized in that, The limiting hole (205) includes a first limiting hole segment and a second limiting hole segment communicating with the first limiting hole segment; The first limiting hole section is opened on the side wall of the limiting sleeve (204) and is spaced apart along the circumferential direction of the limiting sleeve (204); The starting end of the first limiting hole segment is the upper edge of the limiting sleeve (204), and the ending end is the second preset position of the limiting sleeve (204). The first limiting hole segment communicates with the interior of the limiting sleeve in the radial direction. The second limiting hole segment is opened at the second preset position of the limiting sleeve (204). The second limiting hole segment has an annular structure, with one end connected to the first limiting hole segment and the other end connected to the interior of the limiting sleeve (204), so that the cross-section of the limiting hole (205) is L-shaped.

4. The detachable photovoltaic junction box according to claim 3, characterized in that, The snap-fit ​​part includes a snap-fit ​​cylinder (208) and a snap-fit ​​protrusion (209); The diameter of the outer side wall of the snap-fit ​​tube (208) is equal to the diameter of the inner side wall of the limiting sleeve, so that the snap-fit ​​tube (208) can be inserted into the limiting sleeve. The snap-fit ​​protrusions (209) are spaced apart on the outer side wall of the snap-fit ​​cylinder (208), and the snap-fit ​​protrusions correspond to and are adapted to the first limiting hole section, so that when the snap-fit ​​cylinder (208) is inserted into the limiting sleeve (204), the snap-fit ​​protrusions (209) can pass through the first limiting hole section. When the snap-fit ​​protrusion (209) moves from the first limiting hole section to the second limiting hole section, the snap-fit ​​sleeve (208) is rotated at a preset angle, so that the snap-fit ​​protrusion (209) snaps into the limiting sleeve (204).

5. The detachable photovoltaic junction box according to claim 4, characterized in that, The snap-fit ​​component also includes a seal (210); The outer side wall of the snap-fit ​​cylinder (208) located below the snap-fit ​​protrusion (209) is recessed towards the inner side wall with an annular defect portion (211), and an installation cavity (212) is provided between the annular defect portion (211) and the limiting sleeve (204). The sealing element (210) is disposed in the mounting cavity (212).

6. The detachable photovoltaic junction box according to claim 5, characterized in that, The cross-section of the annular defect (211) is a groove or a trapezoid.

7. The detachable photovoltaic junction box according to claim 4, characterized in that, The receiving cavity (203) for placing the conductor component (3) is formed at the central axis position of the snap-fit ​​cylinder (208). The end of the receiving cavity (203) near the snap-fit ​​cylinder (208) is a closed end (215), and the end away from the snap-fit ​​cylinder (208) is an open end (216). The conductor component (3) includes a conductor (301) and an elastic member (302). The two ends of the elastic member (302) are respectively connected to the closed end (215) and the conductor (301) so that the conductor (301) is disposed in the receiving cavity (203) through the elastic member (302), and when the snap-fit ​​part (202) snaps into the limiting part (201), the conductor (301) can extend out of the housing (1).

8. The detachable photovoltaic junction box according to claim 7, characterized in that, The housing (1) has a through hole (102) adapted to the conductor (301) at the position corresponding to the conductor (301), so that the conductor (301) can extend out of the housing (1) through the through hole (102).

9. The interface-detachable photovoltaic junction box according to claim 4, characterized in that, The detachable photovoltaic junction box also includes a sealing layer (4). The sealing layer (4) is disposed at the end of the limiting sleeve (204) away from the snap-fit ​​sleeve (208) and covers the snap-fit ​​sleeve (208).

10. A solar photovoltaic module, characterized in that, Includes solar panels and the interface-detachable photovoltaic junction box as described in any one of claims 1-9; The solar panel includes a glass plate (5) and a busbar (6). The glass plate (5) has a through hole. When the snap-fit ​​part (202) snaps into the limiting part (201), the conductor (301) can extend out of the housing (1) and abut against the busbar (6) through the through hole.

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