Waterproof shell and waterproof inverter

Abstract

The utility model belongs to the technical field of inverters, and particularly relates to a waterproof shell and a waterproof inverter, the waterproof shell comprises an upper shell and a lower shell, the bottom of the upper shell is hermetically connected with the top of the lower shell, the inner side of the lower shell is adjacently provided with a heat dissipation assembly and a waterproof breathable film, one end of the lower shell is provided with at least one filter hole, and the other end of the lower shell is provided with a waterproof breathable film. And the waterproof breathable film is arranged between the filtering hole and the heat dissipation assembly and is used for preventing water from entering the inverter. According to the utility model, by arranging the heat dissipation assembly, the operation of equipment in a normal temperature range can be ensured, and by arranging the waterproof breathable film, water can be prevented from entering the inverter.

Description

Technical Field

[0001] The utility model belongs to the technical field of inverters, and particularly relates to a waterproof housing and a waterproof inverter. Background Art

[0002] With the wide application of renewable energy, energy storage inverters play a key role in energy storage and conversion. However, in practical applications, energy storage inverters often face harsh environments such as humidity and rain, and the intrusion of moisture may cause problems such as short circuits and equipment damage, seriously affecting their performance and reliability. The existing waterproof measures for energy storage inverters mostly adopt simple sealing structures, and the waterproof effect is limited, making it difficult to meet the high requirements for waterproofing.

[0003] Therefore, there is an urgent need to propose a new technical solution to solve the above problems. Summary of the Utility Model

[0004] One of the purposes of the utility model is to provide a waterproof housing that can prevent moisture from entering the interior of the inverter in view of the deficiencies of the prior art.

[0005] To achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A waterproof housing includes an upper housing and a lower housing. The bottom of the upper housing is hermetically connected to the top of the lower housing. A heat dissipation component and a waterproof breathable film are adjacently arranged inside the lower housing. One end of the lower housing has at least one filtering hole, and the waterproof breathable film is arranged between the filtering hole and the heat dissipation component. The waterproof breathable film is used to prevent moisture from entering the interior of the inverter.

[0007] Preferably, the heat dissipation component is a liquid cooling heat dissipation component.

[0008] Preferably, a filtering component is arranged between the waterproof breathable film and the filtering hole, and the filtering component is used to filter impurities in the air.

[0009] Preferably, the upper housing includes a frame body and an upper cover. The upper cover is hermetically connected to the opening of the frame body, and the upper cover is hermetically connected to the lower housing through the frame body.

[0010] Preferably, a sealing ring is arranged inside the upper cover, and the sealing ring is used to prevent moisture from entering the interior of the frame body.

[0011] Preferably, at least one waterproof wire passing plug or waterproof PG head is installed on the side of the upper housing.

[0012] Preferably, a breather valve is installed on the side of the upper housing.

[0013] Preferably, a waterproof socket and a sealing cover are installed on the side of the upper housing, and the sealing cover is used to cover the waterproof socket.

[0014] Preferably, a noise filter is installed inside the upper housing.

[0015] The second object of the present utility model is to provide a waterproof inverter, including the waterproof housing as described above.

[0016] The beneficial effects of the present utility model are as follows: The present utility model includes an upper housing and a lower housing. The bottom of the upper housing and the top of the lower housing are hermetically connected, and a sealing glue is applied at the connection to prevent moisture from penetrating into the interior of the inverter, improving the waterproof performance of the inverter. Inside the lower housing, a heat dissipation component and a waterproof breathable film are adjacently arranged. The heat dissipation component is used to improve the heat dissipation effect of the inverter, ensuring that the device will not be affected by overheating in terms of performance and lifespan during high-load operation. One end of the lower housing has at least one filtering hole, which can prevent large impurities in the air from entering the interior of the lower housing, reducing the burden on the waterproof breathable film for filtering impurities. The waterproof breathable film is arranged between the filtering hole and the heat dissipation component, and is used to prevent moisture from entering the interior of the inverter, and can filter dust and impurities in the air, while allowing air to enter the interior of the inverter to ensure air circulation inside the inverter. By setting the heat dissipation component, the device can operate within a normal temperature range. By setting the waterproof breathable film, moisture can be prevented from entering the interior of the inverter. Moreover, the upper housing and the lower housing are hermetically connected, that is, a sealing glue is applied at the connection, enabling it to work for a short time in a harsh humid environment or even underwater, greatly expanding its application range, improving the reliability and stability of the device, reducing failures and maintenance costs caused by moisture intrusion, and at the same time extending the service life of the energy storage inverter, bringing long-term economic benefits to users. Description of the Drawings

[0017] Figure 1 It is one of the overall structural schematic diagrams of the present utility model.

[0018] Figure 2 It is another overall structural schematic diagram of the present utility model.

[0019] Figure 3 It is the third overall structural schematic diagram of the present utility model.

[0020] Figure 4 It is of the present utility model Figure 3 The enlarged structural schematic diagram of part A.

[0021] Wherein: 1. Upper housing; 11. Frame; 12. Upper cover; 121. Sealing ring; 13. Waterproof wire-passing plug; 14. Waterproof PG head; 15. Breather valve; 16. Waterproof socket; 17. Sealing cover; 18. Noise filter; 2. Lower housing; 21. Filter holes; 3. Heat dissipation component; 4. Waterproof breathable film; 5. Filter component. Detailed implementation mode

[0022] As certain terms are used to refer to specific components in the specification and claims, those skilled in the art should understand that the manufacturer may use different terms to refer to the same component. The specification and claims do not use the difference in names as a way to distinguish components, but use the difference in functions of components as the criterion for distinction. As the term "comprising" mentioned throughout the specification and claims is an open-ended term, it should be interpreted as "comprising but not limited to". In the utility model, unless otherwise clearly specified and limited, terms such as "installed", "connected", "connected to", "fixed" and other terms should be understood in a broad sense. For example, it 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 directly connected, or indirectly connected through an intermediate medium, and it can be the communication inside two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0023] The following combines the attached Figures 1 to 4 and specific embodiments to further elaborate on the present utility model in detail, but it is not a limitation to the present utility model.

[0024] Embodiment 1

[0025] A waterproof housing includes an upper housing 1 and a lower housing 2. The upper housing 1 is used to place electronic components. The bottom of the upper housing 1 and the top of the lower housing 2 are hermetically connected, and an integrated sealing method can be adopted, that is, formed by a frame mold. Both the upper housing 1 and the lower housing 2 are made of high-strength and corrosion-resistant materials, which can be selected according to actual situations and are not specifically limited here. A sealant is applied at the connection to prevent moisture from penetrating into the interior of the inverter, improving the waterproof performance of the inverter. Inside the lower housing 2, a heat dissipation component 3 and a waterproof breathable membrane 4 are adjacently arranged. The heat dissipation component 3 can be a radiator, and the heat dissipation component 3 is used to improve the heat dissipation effect of the inverter, ensuring that the device will not be affected by overheating in terms of performance and lifespan during high-load operation. One end of the lower housing 2 has at least one filter hole 21, and the filter hole 21 can prevent large impurities in the air from entering the interior of the lower housing 2, reducing the burden on the waterproof breathable membrane 4 to filter impurities. The waterproof breathable membrane 4 is arranged between the filter hole 21 and the heat dissipation component 3. The waterproof breathable membrane 4 is used to prevent moisture from entering the interior of the inverter, and can filter dust and impurities in the air, while allowing air to enter the interior of the inverter to ensure air circulation inside the inverter. By setting the heat dissipation component 3, the device can be guaranteed to operate within a normal temperature range. By setting the waterproof breathable membrane 4, moisture can be avoided from entering the interior of the inverter. Moreover, the upper housing 1 and the lower housing 2 are hermetically connected, that is, a sealant is applied at the connection, enabling it to work in a harsh humid environment or even underwater for a short time, greatly broadening its application range, improving the reliability and stability of the device, reducing failures and maintenance costs caused by moisture intrusion, and at the same time extending the service life of the energy storage inverter, bringing long-term economic benefits to users.

[0026] In this embodiment, the heat dissipation component 3 is a liquid-cooled heat dissipation component. The liquid-cooled heat dissipation component is a conventional device that combines pipes and coolant for cooling. The coolant circulates in a closed pipe. By setting a heat exchanger, the heat inside the inverter can be transferred to the outside. At the same time, waterproof sealing treatment is adopted at the joints of the pipes, and sealing treatment can be carried out by welding to ensure that the coolant will not leak. The liquid-cooled heat dissipation component can also be other types of devices that use liquid for heat dissipation, and users can adaptively select according to needs, which are not specifically limited here.

[0027] In this embodiment, a filter component 5 is arranged between the waterproof breathable membrane 4 and the filter hole 21. The filter component 5 is used to filter impurities in the air, and the filter component 5 can be a filter. In order to ensure air circulation inside the inverter, the filter hole 21 is set. The filter hole 21 can filter some impurities in the air, but there are still some small impurities or dust that will enter the inside of the lower housing 2 from the filter hole 21. By setting the filter component 5, this part of the impurities or dust can be effectively filtered, preventing this part of the impurities or dust from adhering to the waterproof breathable membrane 4 and affecting the waterproof and breathable effects of the waterproof breathable membrane 4.

[0028] Example 2

[0029] The difference between this embodiment and Embodiment 1 is that the upper housing 1 includes a frame body 11 and an upper cover 12, and the upper cover 12 is hermetically connected to the opening of the frame body 11. The frame body 11 and the upper cover 12 are connected in an integrated sealing manner, that is, the frame body is formed by molding, and the upper cover 12 is hermetically connected to the lower housing 2 through the frame body 11. Sealant is applied at the connection between the upper cover 12, the frame body 11 and the lower housing 2 in pairs to ensure seamless connection and prevent moisture from penetrating into the upper housing 1.

[0030] In this embodiment, a sealing ring 121 is provided on the inner side of the upper cover 12. The sealing ring 121 can be a sealant ring, and the sealing ring 121 is used to prevent moisture from entering the inside of the frame body 11 and avoid damage to the electronic components inside the frame body 11 caused by moisture.

[0031] In this embodiment, at least one waterproof wire-passing plug 13 is installed on the side of the upper housing 1. The number of waterproof wire-passing plugs 13 can be 2 or 3, and no specific limitation is made here. Waterproof glue is applied around the waterproof wire-passing plug 13 to prevent moisture from penetrating into the upper housing 1 and avoid damage to the electronic components inside the upper housing 1 caused by moisture.

[0032] In this embodiment, at least one waterproof PG head 14 is installed on the side of the upper housing 1. The number of waterproof PG heads 14 can be 2, 3, 4 or 5, and no specific limitation is made here. Waterproof glue is applied around the waterproof PG head 14 to prevent moisture from penetrating into the upper housing 1 and avoid damage to the electronic components inside the upper housing 1 caused by moisture.

[0033] In this embodiment, a breather valve 15 is installed on the side of the upper housing 1, and the breather valve 15 is used to ventilate and exchange air for the upper housing 1.

[0034] In this embodiment, a waterproof socket 16 and a sealing cover 17 are installed on the side of the upper housing 1. The sealing cover 17 is used to cover the waterproof socket 16, and the sealing cover 17 is connected to the side of the upper housing 1 through a hanging ring, so that the sealing cover 17 can be fixed on the side of the upper housing 1. Waterproof plugs and sockets are used for both the input / output interface and the connector. When not in use, the waterproof socket 16 is covered with the sealing cover 17, which can effectively prevent moisture from entering, avoid the risk of short circuit and extend the service life.

[0035] In this embodiment, a noise filter 18 is installed on the inner side of the upper housing 1, which is used to prevent external electromagnetic noise from interfering with the operation of the control circuit of the power supply device itself and prevent external electromagnetic noise from interfering with the operation of the load of the power supply, and can suppress the EMI (Electromagnetic Interference) generated by the power supply device itself and suppress the EMI generated by other devices and propagated through the power supply.

[0036] The other structures of this embodiment are the same as those of Embodiment 1 and will not be described herein again.

[0037] Embodiment 3

[0038] A waterproof inverter includes the waterproof housing described in Embodiment 1 or Embodiment 2. A circuit board is disposed inside the upper housing 1, and a waterproof and moisture-proof coating is applied on the surface of the circuit board. The coating can be waterproof glue. Electronic components are installed on the circuit board, and an encapsulation layer is disposed on the surface of the electronic components. By providing the coating and the encapsulation layer, the tolerance of the circuit components in a humid environment can be improved. Even in an extremely humid environment, the waterproof coating of the circuit board and the encapsulation layer of the electronic components can protect the normal operation of the circuit, ensuring that the inverter can operate stably and reliably.

[0039] Working principle: When the energy storage inverter works, direct current is converted into alternating current output through the inverter circuit. During this process, the generated heat is quickly taken away by the liquid cooling system (i.e., the heat dissipation component 3), keeping the device operating within the normal temperature range. When external moisture attempts to enter the inverter, the multiple protection systems composed of the integrated sealed housing, the sealing ring 121, the sealant, and various waterproof plugs, sockets, and the waterproof breathable film 4 effectively block the intrusion of moisture. Even in an extremely humid environment, the waterproof coating of the circuit board and the encapsulation layer of the electronic components can protect the normal operation of the circuit, ensuring the stable and reliable operation of the energy storage inverter.

[0040] The utility model has excellent waterproof performance and can work in a harsh humid environment or even underwater for a short time, greatly broadening its application range; it also has good heat dissipation effect, ensuring that the device will not affect its performance and service life due to overheating during high-load operation; it improves the reliability and stability of the device, reduces the failures and maintenance costs caused by moisture intrusion; and prolongs the service life of the energy storage inverter, bringing long-term economic benefits to users.

[0041] Obviously, the utility model includes an upper shell and a lower shell. The bottom of the upper shell is hermetically connected to the top of the lower shell, and a sealant is applied at the connection to prevent moisture from penetrating into the interior of the inverter, improving the waterproof performance of the inverter. An adjacent heat dissipation component and a waterproof breathable membrane are arranged inside the lower shell. The heat dissipation component is used to improve the heat dissipation effect of the inverter, ensuring that the device will not affect its performance and lifespan due to overheating during high-load operation. At least one filter hole is provided at one end of the lower shell, and the filter hole can prevent large impurities in the air from entering the interior of the lower shell, reducing the burden on the waterproof breathable membrane to filter impurities. The waterproof breathable membrane is arranged between the filter hole and the heat dissipation component. The waterproof breathable membrane is used to prevent moisture from entering the interior of the inverter, and can filter dust and impurities in the air, while allowing air to enter the interior of the inverter to ensure air circulation inside the inverter. By setting the heat dissipation component, the device can be guaranteed to operate within the normal temperature range. By setting the waterproof breathable membrane, moisture can be prevented from entering the interior of the inverter. Moreover, the upper shell and the lower shell are hermetically connected, that is, a sealant is applied at the connection, enabling it to work for a short time in a harsh humid environment or even underwater, greatly broadening its application range, improving the reliability and stability of the device, reducing failures and maintenance costs caused by moisture intrusion, and at the same time extending the service life of the energy storage inverter, bringing long-term economic benefits to users.

[0042] Based on the disclosure and teachings of the above specification, those skilled in the art of the utility model can also make changes and modifications to the above embodiments. Therefore, the utility model is not limited to the above specific embodiments. Any obvious improvements, substitutions or variations made by those skilled in the art based on the utility model fall within the protection scope of the utility model. In addition, although some specific terms are used in this specification, these terms are only for convenience of description and do not constitute any limitation to the utility model.

Claims

1. A waterproof housing, characterized in that: The inverter comprises an upper shell (1) and a lower shell (2), wherein the bottom of the upper shell (1) and the top of the lower shell (2) are sealed and connected, a heat dissipation component (3) and a waterproof breathable membrane (4) are adjacently arranged on the inner side of the lower shell (2), one end of the lower shell (2) has at least one filter hole (21), the waterproof breathable membrane (4) is arranged between the filter hole (21) and the heat dissipation component (3), and the waterproof breathable membrane (4) is used to prevent moisture from entering the interior of the inverter.

2. The waterproof housing according to claim 1, characterized in that: The heat dissipation component (3) is a liquid-cooled heat dissipation component.

3. The waterproof housing according to claim 1, characterized in that: A filter assembly (5) is provided between the waterproof and breathable membrane (4) and the filter hole (21), and the filter assembly (5) is used to filter impurities in the air.

4. The waterproof housing according to claim 1, characterized in that: The upper shell (1) comprises a frame (11) and an upper cover (12); the upper cover (12) and an opening of the frame (11) are sealed and connected; and the upper cover (12) is sealed and connected to the lower shell (2) through the frame (11).

5. The waterproof housing according to claim 4, characterized in that: A sealing ring (121) is provided on the inner side of the upper cover (12), and the sealing ring (121) is used to prevent moisture from entering the interior of the frame (11).

6. The waterproof housing according to claim 1, characterized in that: At least one waterproof wire plug (13) or a waterproof PG plug (14) is installed on the side of the upper shell (1).

7. The waterproof housing according to claim 1, characterized in that: A ventilation valve (15) is installed on the side of the upper shell (1).

8. The waterproof housing according to claim 1, characterized in that: A waterproof socket (16) and a sealing cover (17) are installed on the side of the upper shell (1), and the sealing cover (17) is used to cover the waterproof socket (16).

9. The waterproof housing according to claim 1, characterized in that: A noise filter (18) is installed on the inner side of the upper shell (1).

10. A waterproof inverter, characterized in that: It comprises the waterproof shell as described in any one of claims 1 to 9.

Images