CN208849686U - A kind of bottom heat radiation mechanism for photovoltaic DC-to-AC converter - Google Patents

Abstract

The utility model discloses a kind of bottom heat radiation mechanisms for photovoltaic DC-to-AC converter, for radiating to photovoltaic DC-to-AC converter bottom, the photovoltaic DC-to-AC converter bottom is provided with heat dissipation chamber, heat exchanger is provided in the heat dissipation chamber, the top surface of the heat exchanger is bonded with the photovoltaic DC-to-AC converter, its opposite two sides is bonded with the side wall of the heat dissipation chamber, multiple heat exchange fins are provided in the other faces of the heat exchanger, the heat dissipation chamber bottom is provided with refrigerating layer, the first blower dried to heat dissipation chamber is provided with below the refrigerating layer, the first heat release hole and the second heat release hole are offered on heat dissipation chamber's side wall, first heat release hole is posted by the side wall of the heat exchanger, it is internally provided with the second blower that exhausting is carried out for heat exchanging device, second heat release hole is set to the lower section of the heat exchanger.The application has preferably heat dissipation effect, can quickly be radiated to photovoltaic DC-to-AC converter bottom.

Description

A kind of bottom heat radiation mechanism for photovoltaic DC-to-AC converter

Technical field

The utility model relates to photovoltaic DC-to-AC converter accessories fields, and in particular to a kind of bottom heat radiation for photovoltaic DC-to-AC converter Mechanism.

Background technique

What photovoltaic DC-to-AC converter (PV inverter or solar inverter) can generate photovoltaic (PV) solar panels can Inversion of direct current voltage is converted to mains frequency alternating current (AC), can feed back to commercial transmission system or make for off-grid power grid With.Photovoltaic DC-to-AC converter is one of system balancing important in photovoltaic array system (BOS), can cooperate setting for general Alternating Current Power Supply It is standby to use.

Component in photovoltaic DC-to-AC converter has its operating temperature ratings, if photovoltaic DC-to-AC converter heat dissipation performance is poor, with Photovoltaic DC-to-AC converter continues working, and for the heat transfer of component less than the external world, temperature will be higher and higher.Temperature is excessively high to be reduced Component performance and service life guarantee it to keep photovoltaic DC-to-AC converter internal component operating temperature in rated temperature range Efficiency and service life, it is necessary to which Heat Conduction Material passes out photovoltaic DC-to-AC converter internal heat, and existing photovoltaic DC-to-AC converter is logical It is all often often to have ignored and radiate to the bottom of photovoltaic DC-to-AC converter, and there is bottom in its side wall and top setting heat release hole The photovoltaic DC-to-AC converter of portion's heat exchange is usually that multiple fins are arranged on shell, and to increase heat exchange area, but simple fin changes The problem of thermal effect is not ideal enough, and the above problem is this field urgent need to resolve.

Summary of the invention

The technical problem to be solved by the present invention is to provide a kind of one kind with good bottom heat radiation effect to be used for The bottom heat radiation mechanism of photovoltaic DC-to-AC converter.

In order to solve the above-mentioned technical problem, scheme provided by the utility model is: a kind of bottom for photovoltaic DC-to-AC converter Cooling mechanism, for radiating to photovoltaic DC-to-AC converter bottom, the photovoltaic DC-to-AC converter bottom is provided with heat dissipation chamber, the heat dissipation Interior is provided with heat exchanger, and the top surface of the heat exchanger is bonded with the bottom surface of the photovoltaic DC-to-AC converter, opposite two sides with The side wall of the heat dissipation chamber is bonded, and is provided with multiple heat exchange fins in the other faces of the heat exchanger, the heat dissipation chamber bottom is set It is equipped with refrigerating layer, the first blower dried to heat dissipation chamber is provided with below the refrigerating layer, is offered on heat dissipation chamber's side wall First heat release hole and the second heat release hole, first heat release hole are posted by the side wall of the heat exchanger, are internally provided with and are used for Heat exchanging device carries out the second blower of exhausting, and second heat release hole is set to the lower section of the heat exchanger.

The application is extremely exchanged heat by the way that heat dissipation chamber, the heat transfer of photovoltaic DC-to-AC converter bottom are arranged below photovoltaic DC-to-AC converter Device, and exhaled by the fin of heat exchanger surface, the second fan heat exchanging device ontology radiates, and the first fan is to heat dissipation chamber It is blowed, drives the cold air around refrigerating layer to flow out by the second heat release hole, form flow of cooled air, energy in heat dissipation chamber Effective heat exchanging device cools down, and spreads thermal effect so as to effectively improve heat exchanger.

Further, the refrigerating layer includes several horizontally disposed water cooling tubes, the both ends of the water cooling tube respectively with The both ends of one heat exchanger tube are connected to, and wherein one end is provided with recycle liquid pump to the heat exchanger tube.

Further, the heat exchanger tube side is provided with the third blower for radiating to the heat exchanger tube.

Further, strainer is provided between the adjacent water cooling tube, the water cooling tube and heat dissipation chamber's side wall Between be provided with strainer.

Further, the heat exchanger tube is copper pipe.

Further, second heat release hole is set in one side wall of the heat dissipation chamber far from the heat exchanger tube.

Further, first heat release hole and second blower include two, described two first heat release holes It is respectively arranged on the two sidewalls being bonded with the heat exchanger, described two second blowers are respectively arranged at two described first and dissipate In hot hole.

The utility model has the beneficial effects that the application has preferably heat dissipation effect, photovoltaic DC-to-AC converter bottom can be carried out Quickly heat dissipation.

Detailed description of the invention

Fig. 1 is the overall schematic of the application.

Fig. 2 is the refrigerating layer schematic diagram of the application.

Figure label explanation: heat dissipation chamber 1, heat exchanger 2, heat exchange fin 21, refrigerating layer 3, water cooling tube 31, heat exchanger tube 32, the One blower 41, the second blower 42, third blower 43, the first heat release hole 51, the second heat release hole 52, strainer 6, recycle liquid pump 7, photovoltaic Inverter 8.

Specific embodiment

The utility model is described in further detail in the following with reference to the drawings and specific embodiments, so that those skilled in the art The utility model may be better understood and can be practiced, but illustrated embodiment is not as the restriction to the utility model.

As depicted in figs. 1 and 2, a kind of bottom heat radiation mechanism for photovoltaic DC-to-AC converter, for 8 bottom of photovoltaic DC-to-AC converter It radiates, 8 bottom of photovoltaic DC-to-AC converter is provided with heat dissipation chamber 1, specifically, 8 bottom of photovoltaic DC-to-AC converter is fixed with heat dissipation chamber 1 Side wall, which is supported photovoltaic DC-to-AC converter 8,8 bottom of side wall, 1 bottom plate of heat dissipation chamber and photovoltaic DC-to-AC converter of heat dissipation chamber 1 Portion is provided with heat exchanger 2, the top surface of the heat exchanger 2 and the photovoltaic inversion for limiting heat dissipation chamber 1 in the heat dissipation chamber 1 The bottom of device 8 is fixed by bolt or buckle, and opposite two sides are bonded with the side wall of heat dissipation chamber 1, it is preferred that heat exchanger 2 Top surface and photovoltaic DC-to-AC converter 8 between can fill heat-conducting silicone grease, heat-conducting silicone grease has good heating conduction, passes through thermal conductive silicon Rouge can be fixed in the other faces of the heat exchanger 2 preferably by the heat transfer to heat exchanger 2 of 8 bottom of photovoltaic DC-to-AC converter There are multiple heat exchange fins 21, the heat exchange fin 21 of the same face can be arranged in parallel, and 1 bottom of heat dissipation chamber is fixed with refrigerating layer 3, tool Body, which can be refrigerator or cooling piece, and the first blower dried to heat dissipation chamber 1 is provided with below the refrigerating layer 3 41, specifically, offering air inlet on the bottom plate of the heat dissipation chamber 1, the first blower 41 is mounted on air inlet, the bottom of heat dissipation chamber 1 Portion bottom is further fixed on bracket, and bracket is for being supported heat dissipation chamber, which can make floor board framing empty, so as to first Blower 41 is preferably dried, and is also provided with the first heat release hole 51 and the second heat release hole 52 on 1 side wall of heat dissipation chamber, In, the first heat release hole 51 is opened on 1 side wall of heat dissipation chamber to recline with heat exchanger 2, which is also posted by described The side wall of heat exchanger 2, inside be equipped with for heat exchanging device 2 carry out exhausting the second blower 42, second heat release hole 52 It is opened on 1 side wall of heat dissipation chamber of 2 lower section of heat exchanger.

The application is by extremely exchanging heat the heat transfer of heat exchanger 2 and 8 bottom of photovoltaic DC-to-AC converter, 8 bottom of photovoltaic DC-to-AC converter Device 2, heat are exhaled by the fin on 2 surface of heat exchanger, and wherein heat dissipation chamber 1 itself is by being set in the first heat release hole 51 The second fan radiate, meanwhile, refrigerating layer 3 freezes and forms cold air around it, the first fan to heat dissipation chamber 1 into Row blowing, cold air are taken away by the outflow of the second heat release hole 52, form flow of cooled air in heat dissipation chamber 1, can effectively exchange Hot device 2 cools down, while the heat that 2 fin of heat exchanger comes out being taken away, and realization is rapidly performed by cooling, makes heat exchanger 2 are able to maintain lower temperature always, so as to carry out rapid cooling to 8 bottom of photovoltaic DC-to-AC converter.

As depicted in figs. 1 and 2, in this application, the refrigerating layer 3 includes several horizontally disposed water cooling tubes 31, heat dissipation It is by connector that water cooling tube 31 is fixed on the side wall of room 1, the both ends of the water cooling tube 31 both ends with a heat exchanger tube 32 respectively Connection, wherein one end of heat exchanger 2 is provided with recycle liquid pump 7, by recycle liquid pump 7 can with when liquid water cooling tube 31 and heat exchange It is recycled between device 2, liquid absorbs the heat in heat dissipation chamber 1 in water cooling tube 31, heat exchanger 2 is then flowed to, by changing The hot heat exchange of device 2 cooling, then flow back into water cooling tube 31.Freezed using the water cooling tube 31 of circulation, structure is simple, cost It is low.

Wherein, as depicted in figs. 1 and 2, in order to reinforce heat transfer effect, heat exchanger tube 32 is made of copper pipe, the heat exchanger tube The setting of 32 level-wind, upside are fixedly attached on 32 mounting rack of heat exchanger tube, offer on 32 mounting rack of heat exchanger tube Ventilation opening corresponding with heat exchanger tube 32 is equipped with for the third blower 43 to 32 exhausting of heat exchanger tube at the ventilation opening.It is logical Cross third blower 43 exchange heat pipe 32 radiate, can with when liquid fast cooling in heat exchanger tube 32.

As depicted in figs. 1 and 2, on the basis of the above, in order to avoid dust enters in heat dissipation chamber 1, the adjacent water Strainer 6 is installed between cold pipe 31, strainer 6 is also installed between 1 side wall of water cooling tube 31 and heat dissipation chamber.

In addition, as depicted in figs. 1 and 2, in order to avoid the thermal current flowed out in heat dissipation chamber 1 influences dissipating for heat exchanger tube 32 Heat, second heat release hole 52 is opened in one side wall of the heat dissipation chamber 1 far from the heat exchanger tube 32, in 2 internal heat of heat exchanger Air-flow afterwards will not flow to heat exchanger tube 32, and the air-flow after avoiding heat exchange blows to heat exchanger tube 32.

As depicted in figs. 1 and 2, on the basis of the above, in order to improve the heat dissipation effect of heat exchanger 2, first heat release hole 51 and second blower 42 include two, described two second heat release holes 52 are opened in two be bonded with the heat exchanger 2 respectively On side wall, two the second blowers 42 are separately mounted in two the first heat release holes 51.

It should be understood that in this application, the first blower 41, the second blower 42, third blower 43 and recycle liquid pump 7 Equal controller connection, controller is for controlling above-mentioned each mechanism, and wherein the connection type of controller and above-mentioned each mechanism is normal The electric connection mode of rule, details are not described herein.

Embodiment described above is only preferred embodiments for fully illustrating the utility model, the utility model Protection scope it is without being limited thereto.Those skilled in the art made equivalent substitute or change on the basis of the utility model It changes, both is within the protection scope of the present invention.The protection scope of the utility model is subject to claims.

Claims (7)

1. a kind of bottom heat radiation mechanism for photovoltaic DC-to-AC converter, for radiating to photovoltaic DC-to-AC converter bottom, feature exists In, the photovoltaic DC-to-AC converter bottom is provided with heat dissipation chamber, be provided with heat exchanger in the heat dissipation chamber, the top surface of the heat exchanger with The bottom surface of the photovoltaic DC-to-AC converter is bonded, and opposite two sides are bonded with the side wall of the heat dissipation chamber, the heat exchanger its He is provided with multiple heat exchange fins on face, the heat dissipation chamber bottom is provided with refrigerating layer, is provided with below the refrigerating layer to scattered First blower of hot cell blowing offers the first heat release hole and the second heat release hole, first heat dissipation on heat dissipation chamber's side wall Hole is posted by the side wall of the heat exchanger, be internally provided with for heat exchanging device carry out exhausting the second blower, described second Heat release hole is set to the lower section of the heat exchanger.

2. a kind of bottom heat radiation mechanism for photovoltaic DC-to-AC converter as described in claim 1, which is characterized in that the refrigerating layer Including several horizontally disposed water cooling tubes, the both ends of the water cooling tube are connected to the both ends of a heat exchanger tube respectively, the heat exchanger tube Wherein one end is provided with recycle liquid pump.

3. a kind of bottom heat radiation mechanism for photovoltaic DC-to-AC converter as claimed in claim 2, which is characterized in that the heat exchanger tube Side is provided with the third blower for radiating to the heat exchanger tube.

4. a kind of bottom heat radiation mechanism for photovoltaic DC-to-AC converter as claimed in claim 2, which is characterized in that described adjacent It is provided with strainer between water cooling tube, is provided with strainer between the water cooling tube and heat dissipation chamber's side wall.

5. a kind of bottom heat radiation mechanism for photovoltaic DC-to-AC converter as claimed in claim 2, which is characterized in that the heat exchanger tube For copper pipe.

6. a kind of bottom heat radiation mechanism for photovoltaic DC-to-AC converter as claimed in claim 2, which is characterized in that described second dissipates Hot hole is set in one side wall of the heat dissipation chamber far from the heat exchanger tube.

7. a kind of bottom heat radiation mechanism for photovoltaic DC-to-AC converter as described in claim 1, which is characterized in that described first dissipates Hot hole and second blower include two, and described two first heat release holes are respectively arranged at two be bonded with the heat exchanger On side wall, described two second blowers are respectively arranged in two first heat release holes.