Housing for high heat dissipation type photovoltaic grid-connected inverter

Abstract

The utility model relates to the technical field of inverters, and discloses a shell for a high heat dissipation type photovoltaic grid-connected inverter, which comprises a protective shell, air blowing assemblies are fixedly connected to the inner sides of the two ends of the protective shell, a pressurizing assembly is arranged on one side of each air blowing assembly, and one end, close to the protective shell, of each pressurizing assembly is fixedly connected to the protective shell. The filter assembly is fixedly connected to the inner side of the protective shell, and the clamping assembly is fixedly connected to the inner side of the lower end of the filter assembly, during use, the filter assembly is installed through the clamping assembly firstly, then the air blowing assembly is started, the air blowing assembly sucks external air into the protective shell, and the sucked air is pressurized through the pressurizing assembly; afterwards, the pressurized airflow is filtered through the filtering assembly and then dissipates heat of electronic components and the like in the protective shell, and meanwhile, heat conduction assemblies on the two sides are used for conducting auxiliary heat dissipation treatment on heat, so that the heat dissipation effect of the protective shell in daily use is effectively enhanced; therefore, the influence of high temperature on electronic components, cables and the like in the protective shell is reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to inverter technical field, specifically, relate to a high heat dissipation type photovoltaic grid connected inverter with casing. BACKGROUND

[0002] The photovoltaic grid connected inverter is a kind of power electronic equipment, which converts direct current generated by photovoltaic cell panel into alternating current and merges it into power grid, and the inverter shell is a mechanical component for protecting internal electronic components, and the inverter shell is a protective cover for protecting internal electronic components of the inverter.

[0003] According to the search, in the application No. CN202322440424.7, a photovoltaic power generation grid-connected inverter is provided, which comprises an inverter body, an installation casing is installed at the bottom of the inverter body, a wire harness arrangement mechanism is arranged in the inner cavity of the installation casing, and the wire harness arrangement mechanism is used for arranging the winding of cable. When the cable is connected with the inverter body, the cable is inserted into the inside of the installation casing through the cable pipe, and the cable is wound on the surface of the winding rod. The plurality of cables are separated by the partition plate, and the cable is compressed by the elastic sliding of the pressure rod and the sliding block while being wound and connected with the inverter body. The cable can be wound and stored, and the winding of the cable is avoided, which can prevent the inverter body from displaying overvoltage of power grid. In the above-mentioned prior art, the winding assembly is arranged to wind and store the cable inside the inverter, so as to avoid the mutual winding of the cable.

[0004] The inverter is composed of an outer shell, internal electronic components and cables, and the outer shell has a protective effect. In the above-mentioned prior art, the cable inside the inverter is wound and stored, but the shell can also have a heat dissipation effect while protecting the internal electronic components and cables. The conventional inverter shell generally has heat dissipation holes at both ends of the shell, so as to dissipate the heat generated by the internal electronic components and cables. Since the heat dissipation efficiency is related to air flow speed and contact area, the shell itself cannot greatly affect the air flow speed around it, resulting in relatively low heat dissipation efficiency, which can cause the electronic components and cables to operate in a high-temperature environment and accelerate aging. UTILITY MODEL CONTENTS

[0005] The utility model aims to provide a high heat dissipation type photovoltaic grid connected inverter with casing, which solves the problem of poor heat dissipation effect of the casing for photovoltaic grid connected inverter in the prior art, which can reduce the service life of internal electronic components and cables of the inverter.

[0006] The utility model provides following technical scheme: A kind of high heat dissipation type photovoltaic grid-connected inverter shell, including protective shell, protective shell both ends inner side is fixedly connected with air-blowing component, and air-blowing component side is provided with booster component, booster component is fixedly connected on protective shell with one end close to protective shell, and protective shell inner side is fixedly connected with filter component, filter component lower end inner side is fixedly connected with detent component, and protective shell both ends outer side is fixedly connected with heat conduction component.

[0007] As the preferred of above technical scheme, air-blowing component includes the support plate that protective shell both ends inner side is fixedly connected, and support plate middle end outer side is fixedly connected with motor, and motor output shaft is fixedly connected with fan blade.

[0008] As the preferred of above technical scheme, protective shell outer side is fixedly connected with outer frame with one end close to support plate, and outer frame is fixedly connected with baffle with one end away from protective shell, and baffle inner side is provided with air duct.

[0009] As the preferred of above technical scheme, filter component includes the inner frame that protective shell is fixedly connected with one end close to support plate inner side, and filter screen is inserted in the inside of inner frame.

[0010] As the preferred of above technical scheme, detent component includes the clamping block that inner frame lower end inner side is inserted, and one end of clamping block inserted in the inside of inner frame is fixedly connected with spring, and one end of spring away from clamping block is fixedly connected on inner frame, and outer side of one end of clamping block close to spring is fixedly connected with push block.

[0011] As the preferred of above technical scheme, heat conduction component includes the heat conduction sheet that protective shell both ends outer side is fixedly connected, and the bolt that heat conduction sheet both ends inside is engaged.

[0012] Compared with prior art, the utility model has the beneficial effects that:

[0013] The shell of a kind of high heat dissipation type photovoltaic grid-connected inverter, when using, first filter component is installed after being carried out by detent component, start air-blowing component, air-blowing component draws the air outside into protective shell, the air that draws is pressurized after filter component and is filtered after the flow of pressurization, and the electronic components in the inside of protective shell are cooled, heat is assisted cooling treatment using the heat conduction component of both sides simultaneously, effectively enhance the heat dissipation effect of protective shell when being used daily, to reduce the influence that high temperature causes to the electronic components and cable etc. in the inside of protective shell. ACCURACY OF DRAWINGS

[0014] Figure 1 It is a kind of high heat dissipation type photovoltaic grid-connected inverter shell structure schematic diagram;

[0015] Figure 2 It is a kind of high heat dissipation type photovoltaic grid-connected inverter shell first visual angle section structure schematic diagram;

[0016] Figure 3 It is a high heat dissipation type photovoltaic grid-connected inverter shell second view profile structure schematic diagram;

[0017] Figure 4 It is a high heat dissipation type photovoltaic grid-connected inverter shell blower assembly structure enlarged schematic diagram;

[0018] Figure 5 It is Figure 3 Structure enlarged schematic diagram in A.

[0019] In the figure: 1, protective shell;2, support plate;21, motor;22, fan blade;3, outer frame;31, baffle;32, air duct;4, inner frame;41, filter screen;5, clamping block;51, spring;52, push block;6, heat conduction sheet;61, bolt. DETAILED DESCRIPTION

[0020] The technical scheme in the utility model embodiment will be clearly and completely described below with reference to the drawings in the utility model embodiments.

[0021] As Figure 1 - Figure 5 The utility model provides a technical scheme: a high heat dissipation type photovoltaic grid-connected inverter shell, including protective shell 1, the both ends inboard fixed connection of protective shell 1 has the blower assembly, and the blower assembly one side is provided with booster assembly, and the blower assembly is close to the fixed connection of booster assembly one end on protective shell 1, and the inboard fixed connection of protective shell 1 has filter assembly, and the inboard fixed connection of filter assembly lower end has clamping assembly, and the both ends outboard fixed connection of protective shell 1 has heat conduction assembly, when using, first filter assembly is installed through clamping assembly, starts the blower assembly, and the blower assembly draws the air outside into protective shell 1, and the air that draws in is pressurized through booster assembly, and then the airflow after pressurization is filtered through filter assembly and is used to the electronic component etc. in the inside of protective shell 1, and the heat conduction assembly on both sides is used to auxiliary heat dissipation treatment, effectively enhances the heat dissipation effect of protective shell 1 when using daily, to reduce the influence that high temperature causes to the electronic component and cable etc. in the inside of protective shell 1.

[0022] As Figure 4 The blower assembly includes the support plate 2 fixedly connected to the both ends inboard of the protective shell 1, and the motor 21 is fixedly connected to the middle outboard of the support plate 2, and the fan blade 22 is fixedly connected to the output shaft of the motor 21. The motor 21 is started under the support of the support plate 2, and the output shaft drives the fan blade 22 to rotate after the motor 21 is started. When the fan blade 22 on one side rotates, the air outside the protective shell 1 is drawn into the protective shell 1, or the air in the protective shell 1 is drawn out by the fan blade 22, so that the air inside and outside the protective shell 1 is replaced, thereby achieving rapid heat dissipation effect.

[0023] As shown in Figure 2 The outer frame 3 is fixedly connected to the outer side of one end of the protective shell 1 close to the support plate 2, and the baffle 31 is fixedly connected to the end of the outer frame 3 away from the protective shell 1. The air duct 32 is formed in the inner side of the baffle 31. When the air drawn in enters the protective shell 1 through the air duct 32, the air is gradually compressed by the air duct 32, thereby increasing the flow rate, so that the air flow with increased flow rate is blown into the protective shell 1, thereby achieving the effect of rapid heat dissipation.

[0024] As shown in Figure 3 The filter assembly includes the inner frame 4 fixedly connected to the inner side of one end of the protective shell 1 close to the support plate 2, and the filter screen 41 is inserted into the inner frame 4. The air drawn in is filtered by the filter screen 41, thereby reducing the entry of external dust.

[0025] As shown in Figure 5 The clamping block 5 is inserted into the inner side of the lower end of the inner frame 4, and the spring 51 is fixedly connected to one end of the clamping block 5 inserted into the inner frame 4. The end of the spring 51 away from the clamping block 5 is fixedly connected to the inner frame 4, and the push block 52 is fixedly connected to the outer side of one end of the clamping block 5 close to the spring 51. After the filter screen 41 is inserted, the spring 51 pushes the clamping block 5 in the opposite direction to reset the clamping block 5 to clamp and limit the filter screen 41. When the filter screen 41 needs to be removed for cleaning or replacement in the later period, the push block 52 is pushed, and the push block 52 is pulled after being pushed to insert the clamping block 5 into the inner frame 4 to compress the spring 51. Then, the filter screen 41 is pulled out of the inner frame 4, thereby facilitating the quick clamping and fixing and removal of the filter screen 41.

[0026] As shown in Figure 1 The heat conduction assembly includes the heat conduction plates 6 fixedly connected to the outer sides of both ends of the protective shell 1, and the bolts 61 are engaged in the inner sides of both ends of the heat conduction plates 6. The heat conduction plates 6 are fixed at both ends of the protective shell 1 through the bolts 61, thereby facilitating the auxiliary heat dissipation of the interior of the protective shell 1 by the heat conductivity of the heat conduction plates 6.

[0027] Working principle; before the protective shell 1 is installed and used, the heat conduction sheet 6 is fixed at both ends of the protective shell 1 through the bolt 61, then the filter screen 41 is inserted into the inner frame 4, the filter screen 41 is inserted and extrudes the clamping block 5 at both ends of the inner frame 4, the clamping block 5 is inserted into the inner frame 4 and compresses the spring 51 after being extruded, then the spring 51 reversely pushes the clamping block 5 when the insertion of the filter screen 41 is completed, so that the clamping block 5 is reset and clamps the filter screen 41, when the filter screen 41 needs to be removed and cleaned or replaced in the later period, the push block 52 is pushed, the push block 52 is pushed and pulls the clamping block 5 to insert into the inner frame 4 and compress the spring 51, then the filter screen 41 is pulled out of the inner frame 4, and the protective shell 1 can start the motor 21 under the support of the support plate 2 when being installed and used, the output shaft drives the fan blade 22 to rotate after the motor 21 is started, the air outside the protective shell 1 is sucked into the protective shell 1 when the fan blade 22 on one side rotates, the sucked air enters the protective shell 1 through the air duct 32, the air is gradually compressed by the air duct 32, so that the flow rate is enhanced, the fan blade 22 on the other side is started, then the air in the protective shell 1 is sucked out, the sucked air is discharged through the air duct 32, the sucked air forms a high-speed airflow and blows into the protective shell 1 to heat dissipation treatment of the electronic elements and cables in the protective shell 1, and the extracted air extracts the high-temperature air in the protective shell 1, so that efficient heat dissipation is realized.

[0028] The above examples are only used to illustrate the technical scheme of the utility model, and not to limit it.

Claims

1. A high heat dissipation type casing for a photovoltaic grid-connected inverter, comprising a protective casing (1), characterized in that: The blast group is fixedly connected to the inner side of both ends of the protective shell (1), one side of the blast group is provided with a booster group, the booster group is fixedly connected to the protective shell (1) near one end of the protective shell (1), the filter group is fixedly connected to the inner side of the protective shell (1), the clamping group is fixedly connected to the inner side of the lower end of the filter group, and the heat conduction group is fixedly connected to the outer side of both ends of the protective shell (1); The blast group includes the support plate (2) fixedly connected to the inner side of both ends of the protective shell (1), and the motor (21) is fixedly connected to the outer side of the middle end of the support plate (2); The filter group includes the inner frame (4) fixedly connected to the inner side of one end of the protective shell (1) near the support plate (2), and the filter screen (41) is inserted into the inner frame (4); The clamping group includes the clamping block (5) inserted into the inner side of the lower end of the inner frame (4), one end of the clamping block (5) inserted into the inner frame (4) is fixedly connected with the spring (51), the other end of the spring (51) away from the clamping block (5) is fixedly connected to the inner frame (4), and the push block (52) is fixedly connected to the outer side of one end of the clamping block (5) near the spring (51).

2. The high-heat-dissipation housing for a photovoltaic grid-connected inverter according to claim 1, characterized in that: The outer frame (3) is fixedly connected to the outer side of one end of the protective shell (1) near the support plate (2), and the baffle (31) is fixedly connected to the other end of the outer frame (3) away from the protective shell (1), and the air duct (32) is formed in the inner side of the baffle (31).

3. The high-heat-dissipation photovoltaic grid-connected inverter housing according to claim 1, characterized in that: The heat conduction group includes the heat conduction sheet (6) fixedly connected to the outer side of both ends of the protective shell (1), and the bolt (61) is engaged in the inner side of both ends of the heat conduction sheet (6).

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