CN202259234U - Photovoltaic by-pass diode module possessing radiator - Google Patents
Photovoltaic by-pass diode module possessing radiator Download PDFInfo
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- CN202259234U CN202259234U CN 201120370479 CN201120370479U CN202259234U CN 202259234 U CN202259234 U CN 202259234U CN 201120370479 CN201120370479 CN 201120370479 CN 201120370479 U CN201120370479 U CN 201120370479U CN 202259234 U CN202259234 U CN 202259234U
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- photovoltaic
- diode module
- bypass diode
- module
- pass diode
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Abstract
The utility model discloses a photovoltaic by-pass diode module possessing a radiator. The photovoltaic by-pass diode module is formed by packaging a by-pass diode chip assembly and an epoxy packaging layer. The by-pass diode chip assembly is formed by connecting at least two diode chips in series via connecting sheets. The two ends of each diode chip are provided with pin terminals which can connect with photovoltaic generating cell groups. The pin terminals are introduced from an end face on one end of the photovoltaic by-pass diode module. The photovoltaic by-pass diode module is arranged in a housing of a junction box. A sealing strip which is provided with through holes is arranged on a surface of the end face of the photovoltaic by-pass diode module. The pin terminals are embedded in the through holes of the sealing strip. A side face of the diode module is provided with a sealing groove along the circumferential direction of the side face. A sealing ring is arranged in the sealing groove. The photovoltaic by-pass diode module adopts two sealing structures which are perpendicular to each other in terms of the sealing direction, so the moisture, the dust, and other foreign matters are prevented from entering the photovoltaic by-pass diode module, and the tightness of the photovoltaic by-pass diode module and the junction box is guaranteed.
Description
Technical field
The utility model relates to photovoltaic power generation apparatus, is specifically related to a kind of photovoltaic bypass diode module that prevents that photovoltaic module " hot spot " from (Hot-Spot) producing.
Background technology
Photovoltaic power generation apparatus has several photovoltaic modulies to constitute usually.Photovoltaic module is according to required voltage, be composed in series by photovoltaic generation unit group (cells), and photovoltaic generation unit group is to be composed in series by photovoltaic generation unit (cell).See shown in Figure 1, wherein, 10 expression photovoltaic generation unit groups, 16 expression photovoltaic generation unit.
Photovoltaic module does not receive when part photovoltaic generation unit under the situation of solar energy or damage when receiving solar energy, will present high power consumption state (" hot spot "), has damaged this photovoltaic generation unit, and has caused the generator operation fault.So photovoltaic module need adopt photovoltaic bypass diode circuit, the protection photovoltaic module is kept photovoltaic power generation apparatus and is normally moved.
The product form of the photovoltaic bypass diode circuit that occurs in the market is a photovoltaic bypass connection box, is made up of terminal block housings, several lead terminals and several discrete diodes, sees that shown in Figure 2 (this figure opens the photovoltaic bypass diode terminal box product stereogram shown in the loam cake; Wherein, 11 expression diode discrete devices, 13 expression lead terminals, 14 expression leads; The existing terminal block housings of 15 expressions) wherein; Each lead terminal is arranged and is fixed in the terminal block housings, and lead terminal constitutes terminals through the duct on the terminal block housings, diode of welding between two adjacent legs terminals; Constitute a bypass diode circuit with this, filling with sealant plays effects such as sealing, insulation in box then.Not enough below the Application Design of this photovoltaic bypass diode exists: the heat dispersion of bypass diode is poor, and working junction temperature is high, burns easily, causes the TRT operation troubles.Be unfavorable for that photovoltaic power generation apparatus is in outdoor long-term, reliable work.
Because if foreign matters such as moisture content, dust are arranged between photovoltaic bypass diode module and the terminal box; This can cause the decline of properties of product; Secondly, TUV laboratory shows that to photovoltaic module terminal box test data statistics 40% of test failure is that the heat test of photovoltaic bypass diode was lost efficacy.Thereby can reflect, this of product test index level low, the security of operation of product and TRT in this serious threat.Therefore how to design a kind of photovoltaic bypass diode module, can prevent that foreign matters such as moisture content, dust from getting into, and thermal diffusivity is superior, becomes the direction that those skilled in the art make great efforts.
Summary of the invention
The utility model provides a kind of photovoltaic bypass diode module with radiator; This photovoltaic bypass diode module adopts the perpendicular two seals of sealing direction; Prevent the entering of foreign matters such as moisture content, dust, thereby guaranteed the sealing of photovoltaic bypass diode module and terminal box; Secondly, it is poor to have overcome existing bypass diode module heat dissipating property, and working junction temperature is high, the defective that operational reliability is low.
For achieving the above object; The technical scheme that the utility model adopts is: a kind of photovoltaic bypass diode module with radiator; This photovoltaic bypass diode module is used to be installed in the terminal block housings; This photovoltaic bypass diode module is by bypass diode chip assembly and the moulding of epoxy packages layer overall package; Said bypass diode chip assembly is connected in series through brace by at least two diode chip for backlight unit and constitutes, and these diode chip for backlight unit two ends are respectively equipped with the pin terminals that can supply to connect photovoltaic generation unit group, and this pin terminals is drawn from the end face of said photovoltaic bypass diode module one end; Said photovoltaic bypass diode module is installed in the terminal block housings; One have through hole sealing strip be installed on said photovoltaic bypass diode module end face surface, said pin terminals embeds in the through hole of sealing strip; Said diode (led) module side also circumferentially has a seal groove along it, and a sealing ring is installed in this seal groove.
Related content in the technique scheme is explained as follows:
1, in the such scheme, the said photovoltaic bypass diode module other end is a radiating block; This radiating block embeds in the groove of metal heat sink one end, and this metal heat sink surface has some fin alternately.
2, in the such scheme, said heat dissipation block surface is concordant with the metal heat sink outer surface.
3, in the such scheme, pass through snap fit between said photovoltaic bypass diode module and the said terminal block housings.
4, in the such scheme, said photovoltaic bypass diode modular shape is flat cuboid.
Because the technique scheme utilization, the utility model compared with prior art has advantage:
1, the utility model is provided with closure gasket groove and sealing strip Plane Installation position in photovoltaic bypass diode module, and the sealing ring of installing on this position and the sealed working face of sealing strip are orthogonal; Adopt end sealing and side seal, thereby be formed on the orthogonal two seals of sealing direction, prevented the entering of foreign matters such as moisture content, dust, guarantee terminal box inner sealing property.
2, the utility model is to the problem of prior art heat dispersion difference; Specialized designs the radiating surface and the radiator that is complementary of photovoltaic bypass diode module; The heat that makes the bypass diode bare chip produce passes to this radiator through the radiating surface on the photovoltaic bypass diode module and dispels the heat; Therefore improved radiating effect greatly, make diode in the photovoltaic bypass diode module than existing photovoltaic bypass diode under identical service conditions, junction temperature descends more than 50 ℃.Thereby the functional reliability and the useful life of photovoltaic bypass diode module and terminal box have greatly been improved.
3, the utility model adopts the photovoltaic bypass diode module (integral module structure) of integral type encapsulating structure, directly is fixed in the terminal block housings through buckle structure.Since this integral module structure decrease welding, assembling and fill multiple working procedure such as epoxy, so technology simple, be electrically connected reliably, be suitable for industrialized mass production.
Description of drawings
Accompanying drawing 3 is the utility model photovoltaic bypass diode module terminal box assembling stereogram;
Accompanying drawing 5 is the utility model photovoltaic bypass diode module stereogram;
Accompanying drawing 6 is the utility model diode chip for backlight unit assembly plane graph;
Accompanying drawing 7 is the utility model terminal block housings stereogram;
Accompanying drawing 8 is the utility model metal heat sink structural representation.
In the above accompanying drawing: 1, photovoltaic bypass diode module; 2, terminal block housings; 3, diode chip for backlight unit; 4, die-attach area; 5, epoxy packages layer; 6, radiating block; 7, metal heat sink; 8, brace; 9, pin terminals; 10, photovoltaic generation unit group; 11, diode discrete device; 12, load; 13, lead terminal; 14, lead; 15, existing terminal block housings; 16, photovoltaic generation unit; 17 bypass diode chip assemblies; 18, groove; 19, fin; 20, through hole; 21 sealing strips; 22, seal groove; 23, sealing ring.
Embodiment
Below in conjunction with accompanying drawing and embodiment the utility model is further described:
Embodiment: a kind of photovoltaic bypass diode module with radiator; Shown in accompanying drawing 1-8; This photovoltaic bypass diode module 1 is used to be installed in the terminal block housings 2; This photovoltaic bypass diode module 1 is by bypass diode chip assembly 17 and the 5 overall package moulding of epoxy packages layer; Said bypass diode chip assembly 17 is connected in series through brace 8 by at least two diode chip for backlight unit 3 and constitutes, and these diode chip for backlight unit 3 two ends are respectively equipped with the pin terminals 9 that can supply to connect photovoltaic generation unit group 10, and this pin terminals 9 is drawn from the end face of said photovoltaic bypass diode module 1 one ends; Said photovoltaic bypass diode module 1 is installed in the terminal block housings 2; One have through hole 20 sealing strip 21 be installed on said photovoltaic bypass diode module 1 end face surface, said pin terminals 9 embeds in the through hole 20 of sealing strips 21; Said diode (led) module side also circumferentially has a seal groove 22, one sealing rings 23 along it and is installed in this seal groove 22.
Above-mentioned photovoltaic bypass diode module 1 other end is a radiating block 6; This radiating block 6 embeds in the groove 18 of metal heat sink 7 one ends, and these metal heat sink 7 surfaces have some fin 19 alternately.
Above-mentioned radiating block 6 surfaces are concordant with metal heat sink 7 outer surfaces.
Pass through snap fit between above-mentioned photovoltaic bypass diode module 1 and the said terminal block housings 2.
Above-mentioned photovoltaic bypass diode module 1 is shaped as flat cuboid.
Present embodiment foregoing specific explanations is following.
Shown in accompanying drawing, a kind of photovoltaic bypass diode module is made up of terminal block housings 2 and photovoltaic bypass diode module 1.Photovoltaic bypass diode module 1 is made up of three diode chip for backlight unit 3, die-attach area 4, brace 8 and epoxy packages layer 5; Earlier three diode chip for backlight unit 3 are assembled in through brace 8 during making and form a chip assembly on the die-attach area 4; And formation bypass diode circuit; Through the mold cavity infusion epoxy resin, injection-compression molding constitutes the photovoltaic bypass diode module 1 of global formation with this then.The main body outward appearance of photovoltaic bypass diode module 1 is flat cuboid, stretches out four pin terminals 9 on one of them flat end face.
In the sealing installation position that photovoltaic bypass diode module 1 is provided with, load onto sealing strip 21 and sealing ring 23.Photovoltaic bypass diode module 1 is put into module terminal block housings 2.So far, photovoltaic bypass diode module 1, radiator metal 7, sealing strip 21, sealing ring 23, module terminal block housings 2 have constituted product component.Be provided with mount pad in the module terminal block housings 2, photovoltaic bypass diode module 1 is installed on this mount pad, and through snap fit (buckle structure can design according to prior art).Pass through the perpendicular sealing of two seals working face, accomplished the inner sealing of butted line box.Need not recharge epoxy encapsulation.
The foregoing description only is the technical conceive and the characteristics of explanation the utility model, and its purpose is to let the personage who is familiar with this technology can understand content of the utility model and enforcement according to this, can not limit the protection range of the utility model with this.All equivalences of being done according to the utility model spirit change or modify, and all should be encompassed within the protection range of the utility model.
Claims (5)
1. photovoltaic bypass diode module with radiator; This photovoltaic bypass diode module (1) is used to be installed in the terminal block housings (2); It is characterized in that: this photovoltaic bypass diode module (1) is by bypass diode chip assembly (17) and epoxy packages layer (5) overall package moulding; Said bypass diode chip assembly (17) by at least two diode chip for backlight unit (3) through brace (8) formation that is connected in series; This diode chip for backlight unit (3) two ends are respectively equipped with the pin terminals (9) that can supply to connect photovoltaic generation unit group (10), and this pin terminals (9) is drawn from the end face of said photovoltaic bypass diode module (1) one end; Said photovoltaic bypass diode module (1) is installed in the terminal block housings (2); One have through hole (20) sealing strip (21) be installed on said photovoltaic bypass diode module (1) end face surface, said pin terminals (9) embeds in the through hole (20) of sealing strip (21); Said diode (led) module side also circumferentially has a seal groove (22) along it, and a sealing ring (23) is installed in this seal groove (22).
2. bypass diode module according to claim 1 is characterized in that: said photovoltaic bypass diode module (1) other end is radiating block (6); This radiating block (6) embeds in the groove (18) of metal heat sink (7) one ends, and this metal heat sink (7) surface has some fin (19) alternately.
3. bypass diode module according to claim 1 is characterized in that: said radiating block (6) surface is concordant with metal heat sink (7) outer surface.
4. bypass diode module according to claim 1 is characterized in that: pass through snap fit between said photovoltaic bypass diode module (1) and the said terminal block housings (2).
5. bypass diode module according to claim 1 is characterized in that: said photovoltaic bypass diode module (1) is shaped as flat cuboid.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201120370479 CN202259234U (en) | 2011-09-30 | 2011-09-30 | Photovoltaic by-pass diode module possessing radiator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201120370479 CN202259234U (en) | 2011-09-30 | 2011-09-30 | Photovoltaic by-pass diode module possessing radiator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202259234U true CN202259234U (en) | 2012-05-30 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201120370479 Expired - Lifetime CN202259234U (en) | 2011-09-30 | 2011-09-30 | Photovoltaic by-pass diode module possessing radiator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202259234U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107040200A (en) * | 2017-06-06 | 2017-08-11 | 高晶石 | A kind of photovoltaic special DC anti-reverse device |
| WO2024016921A1 (en) * | 2022-07-21 | 2024-01-25 | 天合光能股份有限公司 | Packaging structure of diode photovoltaic module and solar cell junction box device |
-
2011
- 2011-09-30 CN CN 201120370479 patent/CN202259234U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107040200A (en) * | 2017-06-06 | 2017-08-11 | 高晶石 | A kind of photovoltaic special DC anti-reverse device |
| WO2024016921A1 (en) * | 2022-07-21 | 2024-01-25 | 天合光能股份有限公司 | Packaging structure of diode photovoltaic module and solar cell junction box device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20120530 |
|
| CX01 | Expiry of patent term |