Conductive sleeve, connector assembly and photovoltaic junction box assembly
By designing hollow grooves and conductive sheets in the conductive sleeve of the photovoltaic junction box, the number and area of the electrical contact areas are increased, the problem of high energy consumption of the electrical connection of the photovoltaic junction box is solved, and more efficient electrical connection is achieved.
Patent Information
- Application Number
- CN202323621063.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2023-12-29
- Publication Date
- 2024-12-24
- Estimated Expiration
- 2033-12-29
AI Technical Summary
The electrical connection energy consumption of existing photovoltaic junction boxes is high, and it is necessary to improve the electrical connection efficiency to reduce energy consumption.
Design a conductive sleeve, including hollow grooves and conductive sheets, which are distributed on the side walls of the conductive sleeves to increase elasticity. The conductive sheet sets an electrical contact area between the hollow grooves, and increases the electrical contact area by changing the extension trajectory of the conductive sheet. The number and area of the conductive sleeve and the conductive pin can be increased and the contact area is reduced.
By increasing the number and area of the electrical contact areas, the energy consumption of the electrical connection between the photovoltaic junction boxes is reduced and the efficiency of the electrical connection is improved.
Smart Images
Figure CN222233927U_ABST
Abstract
Description
Technical Field
[0001] The present application relates to the field of photovoltaic technology, and in particular to a conductive sleeve, a connector assembly and a photovoltaic junction box assembly. Background Art
[0002] Solar energy is a renewable resource. Photovoltaic modules are widely used in solar power generation. Photovoltaic junction boxes are used to interconnect photovoltaic modules with external power modules and output the power of photovoltaic modules to the outside. One photovoltaic module requires multiple photovoltaic junction boxes, and the photovoltaic junction boxes need to be electrically connected to each other. In the prior art, the energy consumption of electrical connection is relatively high. Utility Model Content
[0003] In view of this, the embodiments of the present application provide a conductive sleeve, a connector assembly and a photovoltaic junction box assembly to solve the technical problems existing in the background technology.
[0004] To achieve the above purpose, the technical solution of this application is implemented as follows:
[0005] In a first aspect, an embodiment of the present application provides a conductive sleeve, which is applied to a connector assembly, wherein the connector assembly includes a conductive pin and a conductive sleeve, wherein the conductive sleeve has an inner hole that matches the conductive pin, and the conductive sleeve includes:
[0006] A plurality of hollow grooves are provided, which are opened on the side wall of the inner hole and distributed along the circumference of the inner hole to increase the elasticity of the side wall of the inner hole;
[0007] A conductive sheet is located between two adjacent hollow grooves on the side wall of the inner hole; each conductive sheet is provided with at least one electrical contact area protruding toward the axis of the inner hole to contact the outer circumferential surface of the conductive needle; the electrical contact area is formed by the surface undulations or protrusions of the conductive sheet;
[0008] The conductive sheet extends along a first track, and the first track is set such that: the projected length of the conductive sheet in the axial direction of the inner hole is greater than the circumferential width of the conductive sheet;
[0009] Alternatively, at least two conductive sheets are arranged in the axial direction of the inner hole.
[0010] Optionally, the conductive sheet is an arc surface convex toward the axis, and the area on the arc surface that is shortest distance from the axis of the inner hole is the electrical contact area.
[0011] Optionally, the first trajectory is a straight line.
[0012] Optionally, the first trajectory is a curve.
[0013] Optionally, the first track includes two shapes, which are alternately arranged in the circumferential direction of the inner hole.
[0014] Optionally, at least two electrical contact areas are provided on a single conductive sheet, and radial distances between at least two of the electrical contact areas and the axis of the inner hole are the same.
[0015] Optionally, a convex hull is formed on the inner surface of the conductive sheet, and the point on the convex hull closest to the axis of the inner hole is the electrical contact area.
[0016] Optionally, the convex bump is formed by punching a convex bump inwardly on the outer surface of the conductive sheet.
[0017] In a second aspect, an embodiment of the present application provides a connector assembly, including:
[0018] Pins, including conductive pins;
[0019] The socket is plug-connected with the pin; the socket comprises any one of the conductive sleeves described above; when the pin and the socket are plugged into each other, the conductive pin is inserted into the inner hole of the conductive sleeve.
[0020] In a third aspect, an embodiment of the present application provides a photovoltaic junction box assembly, including:
[0021] Junction box;
[0022] The connector assembly described above is configured to electrically connect two junction boxes; the pin is electrically connected to one of the two junction boxes, and the socket is electrically connected to the other one.
[0023] The conductive sleeve, connector assembly and photovoltaic junction box assembly provided in the embodiment of the present application include: a plurality of hollow grooves, which are provided, opened on the side wall of the inner hole and distributed along the circumference of the inner hole to increase the elasticity of the side wall of the inner hole; a conductive sheet, which is located between two adjacent hollow grooves on the side wall of the inner hole; each conductive sheet is provided with at least one electrical contact area convex to the axis of the inner hole to contact the outer cylindrical surface of the conductive needle; the electrical contact area is formed by the surface undulation or protrusion of the conductive sheet; the conductive sheet extends along a first track, and the first track is set to: the projected length of the conductive sheet in the axial direction of the inner hole is greater than the circumferential width of the conductive sheet; or, at least two conductive sheets are arranged in the axial direction of the inner hole. It can be seen that the conductive sleeve, connector assembly and photovoltaic junction box assembly of the embodiment of the present application increase the number of electrical contact areas, or increase the area of the electrical contact area by changing the extension track of the conductive sheet, increase the contact area between the conductive sleeve and the conductive needle, reduce resistance, and reduce energy consumption. Therefore, the conductive sleeve, connector assembly and photovoltaic junction box assembly of the embodiment of the present application can reduce the energy consumption of electrical connection between junction boxes.
[0024] Additional aspects and advantages of the present application will be given in part in the description below, and in part will become apparent from the description below, or will be learned through the practice of the present application. BRIEF DESCRIPTION OF THE DRAWINGS
[0025] The drawings described herein are used to provide a further understanding of the present application and constitute a part of the present application. The illustrative embodiments of the present application and their descriptions are used to explain the present application and do not constitute an improper limitation on the present application. In the drawings:
[0026] Figure 1 is a schematic diagram of a conductive sleeve in the related art;
[0027] Figure 2 A schematic diagram of a first implementation of a conductive sleeve provided in an embodiment of the present application;
[0028] Figure 3 for Figure 2 A schematic diagram of a cross-sectional view of
[0029] Figure 4 A schematic diagram of a second implementation of the conductive sleeve provided in an embodiment of the present application;
[0030] Figure 5 A schematic diagram of a third implementation of the conductive sleeve provided in an embodiment of the present application;
[0031] Figure 6 A schematic diagram of a fourth implementation of the conductive sleeve provided in an embodiment of the present application.
[0032] Description of reference numerals:
[0033] 11. First hollow groove; 12. First conductive sheet; 21. Second hollow groove; 22. Second conductive sheet; 31. Third hollow groove; 32. Third conductive sheet; 33. Bump; 41. Fourth hollow groove; 42. Fourth conductive sheet. DETAILED DESCRIPTION
[0034] In order to make the technical solutions and beneficial effects of the present application more obvious and easy to understand, the following is a detailed description by listing specific embodiments. The drawings are not necessarily drawn to scale, and local features may be enlarged or reduced to more clearly show the details of the local features; unless otherwise defined, the technical and scientific terms used herein have the same meanings as those in the technical field to which the present application belongs.
[0035] In the description of the present application, terms such as "center", "longitudinal", "lateral", "length", "width", "thickness", "height", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like indicating orientations or positional relationships are based on the orientations or positional relationships shown in the accompanying drawings and are only for the convenience of simplified description of the present application, and do not indicate that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and should not be understood as a limitation on the present application.
[0036] In this application, the terms "first" and "second" are used only for the purpose of clear description and should not be understood as the relative importance of the indicated features or the number of the indicated technical features. Therefore, the features defined as "first" and "second" can explicitly include at least one of the features. In the description of this application, "multiple" means at least two, such as two, three, etc.; "several" means at least one, such as one, two, three, etc., unless otherwise clearly and specifically defined.
[0037] In this application, unless otherwise clearly defined, the terms "install", "connect", "connect", "fix", "set", etc. should be understood in a broad sense. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.
[0038] In the present application, unless otherwise clearly defined, a first feature being “on”, “above”, “above”, “below”, “below”, “below” or “below” a second feature may mean that the first feature is in direct contact with the second feature, or the first feature and the second feature are in indirect contact with each other through an intermediate medium. Moreover, a first feature being “on”, “above” or “above” a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the horizontal height of the first feature is higher than the horizontal height of the second feature. A first feature being “below”, “below” or “below” a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the horizontal height of the first feature is lower than the horizontal height of the second feature.
[0039] In order to thoroughly understand the present application, detailed steps and detailed structures will be presented in the following description to illustrate the technical solution of the present application. The preferred embodiments of the present application are described in detail below, but in addition to these detailed descriptions, the present application may also have other implementation methods.
[0040] In view of the technical problems in the prior art, an embodiment of the present application provides a conductive sleeve, which is applied to a connector assembly. The connector assembly includes a conductive pin and a conductive sleeve. The conductive sleeve has an inner hole that matches the conductive pin. The conductive sleeve includes:
[0041] A plurality of hollow grooves are provided, which are opened on the side wall of the inner hole and distributed along the circumference of the inner hole to increase the elasticity of the side wall of the inner hole;
[0042] A conductive sheet is located between two adjacent hollow grooves on the side wall of the inner hole; each conductive sheet is provided with at least one electrical contact area protruding toward the axis of the inner hole to contact the outer circumferential surface of the conductive needle; the electrical contact area is formed by the surface undulations or protrusions of the conductive sheet;
[0043] The conductive sheet extends along a first track, and the first track is set such that: the projected length of the conductive sheet in the axial direction of the inner hole is greater than the circumferential width of the conductive sheet;
[0044] Alternatively, at least two conductive sheets are arranged in the axial direction of the inner hole.
[0045] The cooperation between the conductive sleeve and the conductive needle can be understood as a hole-shaft cooperation. However, this hole-shaft cooperation not only needs to achieve stable connection, but also needs to achieve electrical connection, and it is also a detachable connection. Therefore, the contact between the hole and the shaft can only be partial area or partial region contact, and it is a certain elastic contact to make the contact more stable.
[0046] The opening of the hollow groove can not only reduce the contact area but also increase the elasticity of the side wall.
[0047] Specifically, the periphery of the hollow groove is closed, so that the elasticity can be increased and the deformation degree of the conductive sleeve during fitting can be within a certain range.
[0048] In the embodiment of the present application, the area between two adjacent hollow grooves is called a conductive sheet. If there are multiple hollow grooves, there are also multiple conductive sheets. Since the conductive sleeve is a rotating body, the number of hollow grooves and conductive sheets on one circle is the same.
[0049] It can be understood that the conductive sheet, in addition to participating in the electrical connection of the conductive pin, also needs to be electrically connected to the outside of the connector assembly, such as the electrical connection to the photovoltaic junction box. That is, except for the hollow groove, the conductive sheet can be a whole. However, in this embodiment, for the convenience of introduction, the conductive sheet is divided as above. The electrical contact area is the area on the conductive sheet that contacts the conductive pin.
[0050] In order to facilitate the distinction between the hollow grooves, conductive sheets and other parts of the conductive sleeve in each embodiment, the names of the hollow grooves and other parts in each embodiment are distinguished by serial numbers. For example, the hollow groove in embodiment one may be the first hollow groove 11, and so on.
[0051] Figure 1 is a schematic diagram of a conductive sleeve in the related art, refer to Figure 1 In the related art, only one electrical contact area is provided on each first conductive sheet 12, the projection of the first conductive sheet 12 in the radial direction of the inner hole is parallel to the axis of the inner hole, and only one first conductive sheet 12 is arranged in the axial direction of the inner hole, that is, there is only one first hollow groove 11 in the axial direction. The radial projection refers to the projection along the radius or diameter direction, and the radial direction is perpendicular to the axial direction.
[0052] In this embodiment, the first trajectory is set as follows: the projected length of the conductive sheet in the axial direction of the inner hole is greater than the circumferential width of the conductive sheet, that is, the first trajectory is inclined relative to the axis of the inner hole, so the area of a single electrical contact area is greater than the area of the electrical contact area of the non-inclined conductive sheet in the related art.
[0053] Alternatively, since two conductive sheets are arranged in the axial direction of the inner hole, the number of electrical contact areas is greater than that in the related art, and the total area of the electrical contact areas is greater than that of the conductive sheets in the related art.
[0054] The surface undulations may be a curved surface with high and low areas, where electrical contact areas may be formed.
[0055] Therefore, the conductive sleeve of the embodiment of the present application increases the area of the electrical contact area, or increases the number of electrical contact areas, thereby increasing the contact area between the conductive sleeve and the conductive needle, reducing resistance, and lowering energy consumption.
[0056] In some embodiments, reference Figure 2 and Figure 3 As shown, the conductive sheet is an arc surface convex toward the axis, and the area on the arc surface with the shortest distance to the axis of the inner hole is the electrical contact area. Figure 2 A schematic diagram of a first embodiment of a conductive sleeve provided in an embodiment of the present application, Figure 3 for Figure 2 A schematic diagram of a cross-sectional view of .
[0057] It can be understood that the conductive sheet is an arc surface convex to the axis, and the distance between the convex part and the axis of the inner hole is the shortest. Specifically, the side wall of the entire conductive sleeve may be convex to the axis, and the corresponding conductive sheet is naturally convex to the axis, that is, the shape of the entire conductive sleeve is a "waist" shape with large diameters at both ends and a small diameter in the middle. Since the electrical contact area is naturally formed in an arc shape and has no obvious convexity, it is not shown in the figure.
[0058] In some embodiments, reference Figure 2 and Figure 3 , the first trajectory is a straight line.
[0059] Since the first track is inclined to the axis of the inner hole, the first track in this embodiment is an oblique line. It should be noted that the straight line mentioned here only refers to the radial projection of the first track, and does not consider the radial change. For example, when the guide sleeve is a "waist" shape, the first track is not a straight line, but the radial projection is a straight line.
[0060] In this embodiment, there is only one second conductive sheet 22 and one second hollow slot 21 in the axial direction.
[0061] In some embodiments, reference Figure 4 and Figure 5 , the first trajectory is a curve.
[0062] That is, in addition to being tilted relative to the axis, it is also a curve in radial projection. In this way, the area of the electrical contact region can be further increased.
[0063] In some embodiments, reference Figure 4 The first trajectory includes two shapes, which are alternately arranged in the circumferential direction of the inner hole.
[0064] In this way, the cooperation of the two shapes can be fully utilized to increase the contact area of the electrical contact zone while maintaining sufficient elasticity of the conductive sleeve.
[0065] In some embodiments, reference Figure 4 and Figure 5 At least two electrical contact areas are provided on a single third conductive sheet 32, and at least two of the electrical contact areas have the same radial distance from the axis of the inner hole. For example, two or more third electrical contact areas are provided at different axial positions, so that the number of electrical contact areas is increased, and the total area of the electrical contact areas is increased. At least two of the electrical contact areas have the same radial distance from the axis of the inner hole, so that both electrical contact areas can contact the conductive needle. Figure 4 A schematic diagram of a second embodiment of the conductive sleeve provided in the embodiment of the present application, Figure 5 A schematic diagram of a third implementation of the conductive sleeve provided in an embodiment of the present application.
[0066] In this embodiment, there is only one third conductive sheet 32 and one third hollow slot 31 in the axial direction.
[0067] In some embodiments, a convex hump 33 is formed on the inner surface of the third conductive sheet 32 , and the point on the convex hump 33 closest to the axis of the inner hole is the electrical contact area.
[0068] Compared with the aforementioned electrical contact area naturally protruding from the arc surface, the convex hull 33 of this embodiment protrudes from the third conductive sheet 32, that is, there is a step between the surface of the third conductive sheet 32 and the convex hull 33, and they are not smoothly connected. In this way, from the processing point of view, it is easier to add the convex hull 33 at the preset position without considering the change of the arc surface.
[0069] In some embodiments, the convex bump 33 is formed by punching the outer surface of the third conductive sheet 32 inwardly.
[0070] Embossing is one of the stamping processes, which has high processing efficiency and accurate size and shape control.
[0071] refer to Figure 6 , at least two fourth conductive sheets 42 are arranged in the axial direction of the inner hole. That is, two fourth hollow grooves 41 are arranged in the axial direction of the inner hole, and the two fourth hollow grooves 41 are not connected in the axial direction. In this way, two fourth conductive sheets 42 are arranged in the axial direction, which can be called two-layer conductive sheets. Since each fourth conductive sheet 42 is provided with an electrical contact area, the number of electrical contact areas is increased. Figure 6 The fourth conductive sheet 42 is shown as protruding toward the axis to form an electrical contact area. It can be understood that other electrical contact areas, such as Figure 2 , Figure 4 and Figure 5 The electrical contact area in the embodiment can also be formed in two layers in the axial direction, so that the number of electrical contact areas can be further increased. It can be understood that three or more electrical contact areas can also be formed. Figure 6 A schematic diagram of a fourth implementation of the conductive sleeve provided in an embodiment of the present application.
[0072] The embodiment of the present application also provides a connector assembly, including:
[0073] Pins, including conductive pins;
[0074] The socket is plug-connected with the pin; the socket includes the conductive sleeve described above; when the pin and the socket are plugged into each other, the conductive pin is inserted into the inner hole of the conductive sleeve.
[0075] The connector assembly of the embodiment of the present application increases the area of the electrical contact area, or increases the number of electrical contact areas, thereby increasing the contact area between the conductive sleeve and the conductive needle, reducing resistance, and lowering energy consumption.
[0076] The present application also provides a photovoltaic junction box assembly, including:
[0077] Junction box;
[0078] The connector assembly described above is configured to electrically connect two junction boxes; the pin is electrically connected to one of the two junction boxes, and the socket is electrically connected to the other one.
[0079] The photovoltaic junction box assembly of the embodiment of the present application increases the area of the electrical contact area, or increases the number of electrical contact areas, thereby increasing the contact area between the conductive sleeve and the conductive needle, reducing resistance, and lowering energy consumption.
[0080] It should be understood that the above embodiments are exemplary and are not intended to include all possible implementations included in the claims. Various modifications and changes may be made on the basis of the above embodiments without departing from the scope of the present disclosure. Similarly, the various technical features of the above embodiments may be arbitrarily combined to form other embodiments of the present application that may not be explicitly described. Therefore, the above embodiments only express several implementations of the present application and do not limit the scope of protection of the patent of this application.
Claims
1. A conductive sleeve, applied to a connector assembly, the connector assembly comprising a conductive pin and a conductive sleeve, characterized in that: The conductive sleeve has an inner hole matched with the conductive needle, and the conductive sleeve comprises: A plurality of hollow grooves are provided, which are opened on the side wall of the inner hole and distributed along the circumference of the inner hole to increase the elasticity of the side wall of the inner hole; A conductive sheet is located between two adjacent hollow grooves on the side wall of the inner hole; each conductive sheet is provided with at least one electrical contact area protruding toward the axis of the inner hole to contact the outer circumferential surface of the conductive needle; the electrical contact area is formed by the surface undulations or protrusions of the conductive sheet; The conductive sheet extends along a first track, and the first track is set such that: the projected length of the conductive sheet in the axial direction of the inner hole is greater than the circumferential width of the conductive sheet; Alternatively, at least two conductive sheets are arranged in the axial direction of the inner hole.
2. The conductive sleeve according to claim 1, characterized in that: The conductive sheet is an arc surface convex toward the axis, and the area on the arc surface with the shortest distance to the axis of the inner hole is the electrical contact area.
3. The conductive sleeve according to claim 1, characterized in that: The first trajectory is a straight line.
4. The conductive sleeve according to claim 1, characterized in that: The first trajectory is a curve.
5. The conductive sleeve according to claim 1, characterized in that: The first track includes two shapes which are alternately arranged in the circumferential direction of the inner hole.
6. The conductive sleeve according to claim 1, characterized in that: At least two electrical contact areas are arranged on a single conductive sheet, and radial distances between at least two of the electrical contact areas and the axis of the inner hole are the same.
7. The conductive sleeve according to claim 6, characterized in that: A convex hull is formed on the inner surface of the conductive sheet, and the point on the convex hull closest to the axis of the inner hole is the electrical contact area.
8. The conductive sleeve according to claim 7, characterized in that: The convex bump is formed by punching a convex bump inwardly on the outer surface of the conductive sheet.
9. A connector assembly, characterized in that: include: Pins, including conductive pins; A socket is plug-connected with the pin; the socket comprises the conductive sleeve according to any one of claims 1 to 8; when the pin and the socket are plugged into each other, the conductive pin is inserted into the inner hole of the conductive sleeve.
10. A photovoltaic junction box assembly, characterized in that: include: Junction box; The connector assembly of claim 9 is configured to electrically connect two junction boxes; the pin is electrically connected to one of the two junction boxes, and the sleeve is electrically connected to the other one.