Photovoltaic junction box connector
By using copper sheet connectors and through-hole structures in photovoltaic junction box connectors, the problems of large size and high cost are solved, achieving miniaturization and efficient heat dissipation.
Patent Information
- Application Number
- CN202520071521.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-13
- Publication Date
- 2025-12-30
- Estimated Expiration
- 2035-01-13
AI Technical Summary
Existing photovoltaic junction box connectors are bulky, costly in terms of materials, and have low heat dissipation efficiency. In particular, the integrated pins of the diodes result in high production costs.
A photovoltaic junction box connector was designed, which uses copper sheet connecting pieces to increase the heat dissipation area and exchanges air with the outside through holes. Combined with the support frame and protective cover structure, the size is reduced and the cost is lowered.
This achievement reduces the size of the photovoltaic junction box connector to half, without compromising heat dissipation, significantly reducing costs, and simultaneously improving heat dissipation efficiency.
Smart Images
Figure CN223744668U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to a connector especially relates to a photovoltaic junction box connector. BACKGROUND
[0002] The photovoltaic junction box connector is an important component in a solar photovoltaic system, which is used for connecting multiple photovoltaic components (solar panels) in series or parallel to transmit the generated current to an inverter or other power management system. The photovoltaic junction box usually includes a junction box, a solar photovoltaic pv line and a pv connector, and a diode is arranged inside the junction box.
[0003] One: the existing photovoltaic junction box connector has a large volume, usually 100*50*30mm, uses more materials, and has a high material cost. Two: the diode on the existing photovoltaic junction box connector adopts a pin direct heat dissipation mode to dissipate heat for the diode, and the pin is integrated, which makes the production cost of the product higher. SUMMARY
[0004] In order to overcome the shortcomings of the existing photovoltaic junction box connector, which has a large volume and the diode adopts an integrated pin with a high cost, the purpose of the utility model is to provide a photovoltaic junction box connector.
[0005] The technical scheme of the utility model is: a photovoltaic junction box connector, including negative pole connecting box, protection cover, first connecting box, positive pole connecting box, connector, diode, connecting piece, limiting block, support frame and solar photovoltaic pv line, the right side of the negative pole connecting box is provided with the first connecting box, the right side of the first connecting box is provided with the positive pole connecting box, and the negative pole connecting box and the positive pole connecting box are connected with the solar photovoltaic pv line at the end away from each other, the end of the solar photovoltaic pv line away from the negative pole connecting box and the positive pole connecting box is connected with the connector, the front end of the negative pole connecting box, the first connecting box and the positive pole connecting box is hinged with the protection cover, the inner back wall of the negative pole connecting box, the first connecting box and the positive pole connecting box is provided with the limiting block, the diode is arranged between the limiting blocks on the left and right sides, the left and right pins of the diode are connected with the connecting piece, the inner left and right of the negative pole connecting box, the first connecting box and the positive pole connecting box are provided with the support frame, the connecting piece is placed on the support frame, and the solar photovoltaic pv line is electrically connected with the connecting piece.
[0006] Further, it further includes a clamping block, the front end of the negative pole connecting box, the first connecting box and the positive pole connecting box is provided with the clamping block, the protection cover is provided with a notch, and the clamping block is matched with the notch.
[0007] Further, it further includes a support, and the end of the negative pole connecting box and the positive pole connecting box close to each other is provided with the support, and the support is matched with the solar photovoltaic pv line.
[0008] Further, a negative sign "-" is engraved on the left side of the front end of the negative connection box, and a positive sign "+" is engraved on the right side of the front end of the positive connection box.
[0009] Further, the connecting sheet is made of copper sheet material.
[0010] Further, the through holes are symmetrically arranged on the left and right sides in the negative connection box, the first connection box and the positive connection box, and the through holes are located in front of the connecting sheet.
[0011] Further, the volume of the negative connection box, the first connection box and the positive connection box is 55*29*16mm.
[0012] The photovoltaic junction box connector of the utility model has the advantages of the following: 1. A connecting sheet is connected to the pin of the diode, the heat dissipation area of the pin is increased, the volume of the photovoltaic junction box connector is reduced, the heat dissipation effect is not reduced, the diode is directly connected by a single pin, and the structure is simple and the cost of the product is saved.
[0013] 2. The through holes increase the air contact of the connection box with the outside, which is beneficial to the heat dissipation of the connection box, and the connecting sheet is made of copper sheet material, and copper has excellent heat conductivity. BRIEF DESCRIPTION OF DRAWINGS
[0014] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model.
[0015] Figure 2 It is a schematic diagram of the three-dimensional structure of the positive connection box of the utility model.
[0016] Figure 3 It is a schematic diagram of the three-dimensional structure of the utility model Figure 2 It is a schematic diagram of the three-dimensional structure of the utility model.
[0017] Figure 4 It is a schematic diagram of the three-dimensional structure of the diode and other components of the utility model.
[0018] Figure 5 It is a schematic diagram of the three-dimensional structure of the connecting sheet and other components of the utility model.
[0019] The drawings show that: 1 is a negative connection box, 101 is a protective cover, 102 is a support, 103 is a negative sign, 104 is a positive sign, 106 is a through hole, 107 is a clamping block, 111 is a notch, 2 is a first connection box, 3 is a positive connection box, 4 is a connector, 5 is a diode, 6 is a connecting sheet, 7 is a limiting block, 8 is a supporting frame, and 9 is a solar photovoltaic pv line. DETAILED DESCRIPTION
[0020] The utility model will be further described in combination with the drawings and examples.
[0021] A photovoltaic junction box connector, as shown in Figures 1-5 The front left side of the negative connection box 1 is engraved with a negative sign 103 "-". The right side of the negative connection box 1 is provided with the first connection box 2. The right side of the first connection box 2 is provided with the positive connection box 3. The front right side of the positive connection box 3 is engraved with a positive sign 104 "+". The negative sign 103 on the negative connection box 1 and the positive sign 104 on the positive connection box 3 are beneficial to the intuitive distinction between the negative connection box 1 and the positive connection box 3. The ends of the negative connection box 1 and the positive connection box 3 away from each other are connected with the solar photovoltaic pv line 9. The ends of the solar photovoltaic pv line 9 away from the negative connection box 1 and the positive connection box 3 are connected with the connector 4. The front ends of the negative connection box 1, the first connection box 2 and the positive connection box 3 are hinged with the protective cover 101. The protective cover 101 can prevent external moisture, dust and other pollutants from entering, thereby avoiding possible short circuit or other electrical faults. The inner rear walls of the negative connection box 1, the first connection box 2 and the positive connection box 3 are symmetrically provided with the limiting blocks 7. The diodes 5 are arranged between the limiting blocks 7 on the left and right sides. The limiting blocks 7 clamp the left and right pins of the diodes 5 to fix the diodes 5. The left and right pins of the diodes 5 are connected with the connecting pieces 6. The connecting pieces 6 are made of copper sheet material. The connecting pieces 6 increase the heat dissipation effect of the diodes 5. The copper sheet has good thermal conductivity. The left and right sides of the negative connection box 1, the positive connection box 3 and the first connection box 2 are symmetrically provided with through holes 106. The through holes 106 are located in front of the connecting pieces 6. The through holes 106 are connected with the outside to realize the exchange of internal and external air, which is beneficial to the heat dissipation of the connecting pieces 6. The left and right sides of the negative connection box 1, the first connection box 2 and the positive connection box 3 are symmetrically provided with the supporting frames 8. The supporting frames 8 support the connecting pieces 6 to prevent the connecting pieces 6 from being separated from the negative connection box 1, the first connection box 2 and the positive connection box 3. The connecting pieces 6 are placed on the supporting frames 8. The solar photovoltaic pv line 9 is electrically connected with the connecting pieces 6. The volume of the negative connection box 1, the first connection box 2 and the positive connection box 3 is 55*29*16mm. The volume of the negative connection box 1, the first connection box 2 and the positive connection box 3 is about half of the volume (100*50*30mm) of the existing photovoltaic junction box connector, which greatly saves the manufacturing cost.
[0022] As shown in Figures 3-5As shown, the solar photovoltaic pv junction box connector further comprises a clamping block 107, the front end of the negative electrode connecting box 1, the first connecting box 2 and the positive electrode connecting box 3 is provided with the clamping block 107, the protective cover 101 is provided with a notch 111, the clamping block 107 is matched with the notch 111, the protective cover 101 is clamped into the clamping block 107, and the notch 111 on the protective cover 101 is matched with the clamping block 107, so that the negative electrode connecting box 1, the first connecting box 2 and the positive electrode connecting box 3 are closed.
[0023] As shown in the drawings, Figure 1 and Figure 2 As shown, the solar photovoltaic pv junction box connector further comprises a support 102, one end of the negative electrode connecting box 1 and the positive electrode connecting box 3 is provided with the support 102, the support 102 is matched with the solar photovoltaic pv wire 9, when the connector 4 is not used, the solar photovoltaic pv wire 9 is clamped into the support 102, the bottom end of the connector 4 is in contact with the top end of the support 102, and the folding of the connector 4 is completed.
[0024] The internal structures of the negative electrode connecting box 1, the first connecting box 2 and the positive electrode connecting box 3 are same, two connecting sheets 6 are respectively welded on two pins of the diode 5, the welded diode 5 and the connecting sheet 6 are installed in the negative electrode connecting box 1, the first connecting box 2 and the positive electrode connecting box 3, the left and right pins of the diode 5 are located in the left and right limiting blocks 7, the limiting blocks 7 clamp the left and right pins of the diode 5, the diode 5 is fixed, the connecting sheet 6 is located on the support frame 8, the support frame 8 supports the connecting sheet 6, prevents the connecting sheet 6 from being separated from the negative electrode connecting box 1, the first connecting box 2 and the positive electrode connecting box 3, the connecting sheet 6 is made of copper sheet, the copper has excellent heat conduction, the connecting sheet 6 is a rectangular plate, the heat dissipation area of the connecting sheet 6 is increased, the through hole 106 increases the air contact of the connecting box with the outside, and the heat dissipation of the connecting box is beneficial, the protective cover 101 is clamped into the clamping block 107, the notch 111 on the protective cover 101 is matched with the clamping block 107, so that the negative electrode connecting box 1, the first connecting box 2 and the positive electrode connecting box 3 are closed, when the solar photovoltaic pv junction box connector connects the solar panel and the inverter (the electricity generated by the solar panel is transmitted to the inverter through the solar photovoltaic pv junction box connector), a large amount of heat is generated when the current flows through the diode 5, and the connecting sheet 6 assists the pins of the diode 5 to dissipate heat.
[0025] The above only describes the embodiments of the present application, and does not limit the patent range of the present application, and any equivalent structure or equivalent process transformation according to the content of the present application is directly or indirectly applied to other related technical fields, which is also included in the patent protection range of the present application.
Claims
1. A photovoltaic junction box connector comprising a negative connection box (1), characterized in that, It also includes protective cover (101), the first connecting box (2), the positive connecting box (3), the connector (4), the diode (5), the connecting piece (6), the limit block (7), the support frame (8) and the solar photovoltaic pv line (9), the right side of the negative connecting box (1) is equipped with the first connecting box (2), the right side of the first connecting box (2) is equipped with the positive connecting box (3), the negative connecting box (1) and the positive connecting box (3) are connected with the solar photovoltaic pv line (9) away from each other, the end of the solar photovoltaic pv line (9) away from the negative connecting box (1) and the positive connecting box (3) is connected with the connector (4), the front end of the negative connecting box (1), the first connecting box (2) and the positive connecting box (3) are hinged with the protective cover (101), the inner back wall of the negative connecting box (1), the first connecting box (2) and the positive connecting box (3) is symmetrically provided with the limit block (7), the diode (5) is provided between the left and right limit blocks (7), the left and right pins of the diode (5) are connected with the connecting piece (6), the inner left and right of the negative connecting box (1), the first connecting box (2) and the positive connecting box (3) are symmetrically provided with the support frame (8), the connecting piece (6) is placed on the support frame (8), and the solar photovoltaic pv line (9) is electrically connected with the connecting piece (6).
2. A photovoltaic junction box connector according to claim 1, characterized in that It also includes a clamping block (107), the front end of the negative connecting box (1), the first connecting box (2) and the positive connecting box (3) is equipped with the clamping block (107), the protective cover (101) is equipped with the notch (111), and the clamping block (107) is matched with the notch (111).
3. A photovoltaic junction box connector according to claim 2, wherein, It also includes a bracket (102), the end of the negative connecting box (1) and the positive connecting box (3) is equipped with the bracket (102), and the bracket (102) is matched with the solar photovoltaic pv line (9).
4. A photovoltaic junction box connector according to claim 3, wherein, The front left side of the negative connecting box (1) is engraved with a negative sign (103) "-".
5. A photovoltaic junction box connector according to claim 4, wherein, The connecting piece (6) is made of copper sheet material.
6. A photovoltaic junction box connector according to claim 5, wherein, The left and right sides of the negative connecting box (1), the positive connecting box (3) and the first connecting box (2) are symmetrically provided with through holes (106), and the through holes (106) are located in front of the connecting piece (6).
7. A photovoltaic junction box connector according to claim 6, wherein, The volume of the negative connecting box (1), the first connecting box (2) and the positive connecting box (3) is 55*29*16mm.