Ventilation valve and inverter

Abstract

The utility model discloses a ventilation valve and an inverter, and relates to the technical field of electronic equipment, the ventilation valve comprises a valve body, a waterproof ventilation film and an adsorption purification layer, the valve body is provided with a ventilation channel in a through manner, the valve body is arranged at positions such as a cabinet body of a cabinet, and the ventilation channel is used for communicating the inside and the outside of the cabinet to ensure the balance of air pressure inside and outside the cabinet. The waterproof breathable film is arranged in the breathable channel and has waterproof and breathable functions, and when external air enters the cabinet through the breathable channel, the waterproof breathable film only allows air to pass through and prevents liquid such as rainwater from passing through. The adsorption and purification layer is arranged in the ventilation channel, and when external air enters the cabinet through the ventilation channel, the adsorption and purification layer can adsorb impurities and moisture in the air to ensure that only dry and clean air enters the cabinet, so that the risk of damage to internal components of the inverter is reduced.

Description

Technical Field

[0001] The present application relates to the technical field of electronic equipment, and more specifically, to a breathable valve and an inverter. Background Art

[0002] At present, inverters are usually equipped with air valves to balance the internal and external air pressure. However, with the expansion of inverter application scenarios, especially inverters that operate for a long time in highly polluted or high-humidity environments, existing air valves can easily allow external impurities or moisture to enter, thereby damaging the components inside the inverter.

[0003] Therefore, how to effectively reduce the risk of damage to components inside the inverter has become a technical problem that needs to be urgently solved by those skilled in the art. Utility Model Content

[0004] In view of this, an object of the present application is to provide a vent valve to reduce the risk of damage to components inside the inverter.

[0005] Another object of the present application is to provide an inverter including the above-mentioned breathable valve.

[0006] To achieve the above objectives, this application provides the following technical solutions:

[0007] A vent valve, comprising:

[0008] A valve body, wherein a venting passage is provided through the valve body;

[0009] A waterproof breathable membrane, arranged in the breathable channel;

[0010] The adsorption and purification layer is arranged in the air permeable channel and is used for adsorbing impurities and moisture.

[0011] Optionally, in the above-mentioned air-permeable valve, the adsorption purification layer includes at least one of an adsorption purification net and an adsorbent.

[0012] Optionally, in the above-mentioned breathable valve, the adsorption purification net is one layer or multiple layers, and the multiple layers of the adsorption purification net are arranged on the same side or different sides of the waterproof breathable membrane;

[0013] The waterproof and breathable membrane is one layer or multiple layers.

[0014] Optionally, in the above-mentioned air valve, along the axial direction of the air permeable channel, the air holes on two adjacent layers of the adsorption purification nets are staggered.

[0015] Optionally, in the above-mentioned breathable valve, the adsorbent is arranged between the adsorption purification net and the waterproof breathable membrane; and / or,

[0016] The adsorbent is disposed between two adjacent layers of the adsorption purification net; and / or,

[0017] The adsorbent is disposed between two adjacent layers of the waterproof breathable film.

[0018] Optionally, in the above-mentioned air vent valve, the valve body includes:

[0019] A first tube body;

[0020] A second tube body disposed at one end of the first tube body, the inner diameter of the first tube body being smaller than that of the second tube body, the waterproof breathable film being disposed on the end face of the first tube body facing the second tube body, and the cavities of the first tube body and the second tube body being in communication and serving as the air vent passage.

[0021] Optionally, in the above-mentioned air vent valve, the outer diameter of the first tube body is smaller than that of the second tube body, the first tube body is for being embedded in the side wall of the cabinet, and the second tube body is for abutting against the side wall of the cabinet.

[0022] Optionally, in the above-mentioned air vent valve, a end cap is detachably disposed at one end of the second tube body away from the first tube body, and an air vent gap communicating with the air vent passage is provided between the end cap and the second tube body.

[0023] Optionally, in the above-mentioned air vent valve, the surfaces of the second tube body and the end cap facing each other are a first opposite surface and a second opposite surface respectively, a positioning post is provided on one of the first opposite surface and the second opposite surface, and a positioning hole for the end of the positioning post to be embedded is provided on the other, and the positioning post is for spacing the first opposite surface and the second opposite surface by the air vent gap.

[0024] Optionally, in the above-mentioned air vent valve, the adsorbent is disposed between the end cap and the waterproof breathable film; or,

[0025] The adsorbent is disposed between the end cap and the adsorption purification net.

[0026] Optionally, in the above-mentioned air vent valve, the adsorption purification layer and / or the waterproof breathable film are detachably disposed in the air vent passage.

[0027] An inverter includes a cabinet and the above-mentioned air vent valve, the air vent valve is disposed on the cabinet body, and the air vent passage communicates the internal space of the cabinet with the outside.

[0028] The air permeable valve provided by this application includes a valve body, a waterproof breathable membrane, and an adsorption purification layer. The valve body is provided with a breathable channel running through it. The valve body is used to be installed at positions such as the cabinet body of a cabinet, and the breathable channel is used to connect the inside and the outside of the cabinet to ensure the balance of air pressure inside and outside the cabinet. The waterproof breathable membrane is arranged in the breathable channel and has the functions of waterproof and breathable. When the outside air enters the cabinet through the breathable channel, the waterproof breathable membrane only allows gas to pass through and prevents liquids such as rainwater from passing through; the adsorption purification layer is arranged in the breathable channel. When the outside air enters the cabinet through the breathable channel, the adsorption purification layer can adsorb impurities and moisture in the air to ensure that only dry and clean air enters the cabinet.

[0029] Compared with the prior art, the air permeable valve provided by this application realizes the balance of air pressure inside and outside the cabinet through the breathable channel, and through the setting of the adsorption purification layer and the waterproof breathable membrane, adsorbs impurities and moisture in the polluted gas or moisture flowing through the breathable channel to ensure that the gas entering the cabinet through the breathable channel has removed impurities and moisture, thereby ensuring the dryness and purity of the gas inside the cabinet, reducing the risk of damage to the internal components of the inverter, and having the advantages of simple structure and convenient maintenance.

[0030] The inverter provided by this application includes a cabinet and the above-mentioned air permeable valve. The air permeable valve is arranged on the cabinet body of the cabinet, and the breathable channel communicates the internal space of the cabinet with the outside. The air permeable valve can remove impurities and moisture in the air entering the cabinet through the breathable channel, avoiding affecting the normal operation of functional components such as the inverter inside the cabinet. Due to the presence of the above-mentioned air permeable valve, it also has the above-mentioned beneficial effects. Other structures can refer to the prior art and will not be elaborated here. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] In order to more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of this application. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0032] Figure 1 Structural schematic of the air permeable valve disclosed in the first embodiment of this application Figure 1 ;

[0033] Figure 2 Structural schematic diagram of the adsorption purification layer in the first embodiment of this application;

[0034] Figure 3 Structural schematic of the air permeable valve disclosed in the first embodiment of this application Figure 2 ;

[0035] Figure 4 Schematic structural diagram of the air permeable valve disclosed in the second embodiment of the present application;

[0036] Figure 5 Schematic structural diagram of the air permeable valve disclosed in the third embodiment of the present application Figure 1 ;

[0037] Figure 6 Schematic structural diagram of the air permeable valve disclosed in the third embodiment of the present application Figure 2 ;

[0038] Figure 7 Schematic structural diagram of the air permeable valve disclosed in the fourth embodiment of the present application Figure 1 ;

[0039] Figure 8 Schematic structural diagram of the air permeable valve disclosed in the fourth embodiment of the present application Figure 2 ;

[0040] Figure 9 Schematic structural diagram of the air permeable valve disclosed in the fourth embodiment of the present application Figure 3 ;

[0041] Figure 10 Schematic structural diagram of the air permeable valve disclosed in the fifth embodiment of the present application;

[0042] Figure 11 Schematic structural diagram of the air permeable valve disclosed in the sixth embodiment of the present application;

[0043] Figure 12 Schematic structural diagram of the air permeable valve disclosed in the seventh embodiment of the present application.

[0044] Among them, 1 is the valve body, 11 is the first pipe body, 12 is the second pipe body, 13 is the positioning column, 2 is the waterproof and breathable membrane, 3 is the adsorption and purification net, 31 is the first purification net, 32 is the second purification net, 4 is the adsorbent, 41 is the first adsorbent, 42 is the second adsorbent, and 5 is the end cover. Detailed implementation manners

[0045] The core of the present application lies in disclosing an air permeable valve to reduce the risk of damage to internal components of the inverter.

[0046] Another core of the present application lies in disclosing an inverter including the above air permeable valve.

[0047] Hereinafter, embodiments will be described with reference to the accompanying drawings. In addition, the embodiments shown below do not limit the utility model content described in the claims in any way. Furthermore, all the contents of the configurations shown in the following embodiments are not limited to those necessary for the solution of the utility model described in the claims. It should be noted that for ease of description, only parts related to the utility model are shown in the drawings. Without conflict, the embodiments in the present application and the features in the embodiments can be combined with each other.

[0048] Combined with Figure 1 and Figure 4 , the breathable valve disclosed in the present application includes a valve body 1, a waterproof breathable membrane 2, and an adsorption purification layer. The valve body 1 is provided with a breathable channel penetrating therethrough. The valve body 1 is used to be arranged at positions such as the cabinet body of the cabinet. The breathable channel is used to communicate the inside and the outside of the cabinet to ensure the balance of air pressure inside and outside the cabinet. The waterproof breathable membrane 2 is arranged in the breathable channel and has the functions of waterproof and breathable. When the outside air enters the cabinet interior through the breathable channel, the waterproof breathable membrane 2 only allows gas (including moisture) to pass through and prevents liquids such as rainwater from passing through; the adsorption purification layer is arranged in the breathable channel. When the outside air enters the cabinet interior through the breathable channel, the adsorption purification layer can adsorb impurities (including polluting gases and fine particles, such as sulfur dioxide, nitrogen oxides, dust, etc.) and moisture in the air to ensure that only dry and clean air enters the cabinet interior.

[0049] Among them, the adsorption purification layer may specifically include an adsorption purification net 3, an adsorbent 4 (activated carbon, silica gel, molecular sieve), etc., which have good adsorption performance and can adsorb impurities and moisture (the moisture in the air is moisture) in the air.

[0050] Compared with the prior art, the present application realizes the balance of air pressure inside and outside the cabinet through the breathable channel, and through the setting of the adsorption purification layer and the waterproof breathable membrane 2, adsorbs impurities and moisture in the polluting gas or moisture flowing through the breathable channel, so as to ensure that the gas entering the cabinet interior through the breathable channel has been removed of impurities and moisture, thereby ensuring the dryness and purity of the gas inside the cabinet, reducing the risk of damage to the internal components of the inverter, and having the advantages of simple structure and convenient maintenance.

[0051] In some embodiments, the adsorption purification layer includes at least one of the adsorption purification net 3 and the adsorbent 4, that is, only the adsorption purification net 3 or the adsorbent 4 can be arranged in the breathable channel as the adsorption purification layer, or both the adsorption purification net 3 and the adsorbent 4 can be arranged as the adsorption purification layer, preferably the latter, so as to fully adsorb the impurities and moisture contained in the air in the breathable channel and ensure the purity and dryness of the gas entering the interior space of the cabinet.

[0052] The adsorption purification net 3 and the adsorbent 4 can be flexibly arranged at any position in the air-permeable channel. Specifically, the adsorption purification net 3 can be one layer or multiple layers (in combination with Figure 1 and Figure 2 , in the following embodiments and the accompanying drawings of the specification, when the adsorption purification net 3 is two layers, the one closer to the end cap 5 in the two layers of adsorption purification nets 3 is the first purification net 31, and the one farther from the end cap 5 is the second purification net 32). The multiple layers of adsorption purification nets 3 can be arranged on the same side or different sides of the waterproof breathable membrane 2, as long as the respective functions of the adsorption purification net 3 and the waterproof breathable membrane 2 are not affected. The waterproof breathable membrane 2 can be one layer or multiple layers.

[0053] In combination with Figure 4 , it shows an arrangement scheme in which the adsorption purification net 3 is one layer and is arranged on the side of the waterproof breathable membrane 2 away from the end cap 5. In combination with Figure 5 , it shows an arrangement scheme in which the adsorption purification net 3 is one layer and is arranged on the side of the waterproof breathable membrane 2 close to the end cap 5. In combination with Figures 1 - 3 ( Figure 3 The waterproof breathable membrane 2 in it is not shown, and it is arranged at the junction position of the first pipe body 11 and the second pipe body 12), it shows an arrangement scheme in which the adsorption purification net 3 is two layers, and both layers of adsorption purification nets 3 are arranged on the same side of the waterproof breathable membrane 2. After the gas or moisture passes through the filtration of the external liquid by the waterproof breathable membrane 2, it then passes through the two layers of adsorption purification nets 3 in sequence to further remove the moisture and other impurities in the air, and finally reaches the inside of the cabinet. In combination with Figure 7 、 Figure 8 and Figure 11 ( Figure 8 The waterproof breathable membrane 2 in it is not shown, and it is arranged at the junction position of the first pipe body 11 and the second pipe body 12), it shows an arrangement scheme in which the adsorption purification net 3 is two layers, and the two layers of adsorption purification nets 3 are respectively arranged on both sides of the waterproof breathable membrane 2.

[0054] It can be understood that when the adsorption purification net 3 is multiple layers, along the axial direction of the air-permeable channel, the ventilation holes on the adjacent two layers of the adsorption purification nets 3 are arranged in a staggered manner to achieve the maximum adsorption efficiency and enhance the adsorption and filtration effect on the impurities and moisture in the air.

[0055] For the convenience of replacing and maintaining the adsorption purification layer and the waterproof breathable membrane 2, in some embodiments, the adsorption purification layer and / or the waterproof breathable membrane 2 are detachably arranged in the air-permeable channel. When maintenance is required, the adsorption purification layer and / or the waterproof breathable membrane 2 can be directly removed from the air-permeable channel and replaced. During the maintenance process, according to the actual situation, the air valve can remain on the cabinet without moving, or it can be first removed from the cabinet and then the adsorption purification layer and / or the waterproof breathable membrane 2 are replaced, and finally reinstalled on the cabinet.

[0056] Since the adsorption purification net 3 has a certain rigidity itself, it can be in interference fit with the air-permeable channel and be directly clamped on the inner wall of the air-permeable channel; alternatively, a positioning ring groove can be formed on the inner wall of the air-permeable channel for the adsorption purification net 3 to be installed and embedded; or, positioning protrusions can be arranged on the inner wall of the air-permeable channel, and the adsorption purification net 3 can be attached to the positioning protrusions to position the adsorption purification net 3 in a fixed position. During assembly, according to the actual installation positions of the waterproof breathable film 2 and the adsorption purification layer in the air-permeable channel, the waterproof breathable film 2 and the adsorption purification layer are successively installed in the air-permeable channel.

[0057] When removing the adsorption purification net 3 from the valve body 1, a tool (such as a push rod) can be inserted into the air-permeable channel to push out the adsorption purification net 3, or a tool with a hooked end can be inserted into the air-permeable channel to hook out the adsorption purification net 3 through the ventilation holes on the adsorption purification net 3.

[0058] According to the specific type and packaging method of the adsorbent 4, the adsorbent 4 can be directly filled in the air-permeable channel, or the adsorbent 4 can be first packaged in a breathable packaging bag and then installed (such as snapped in, bonded, etc.) in the air-permeable channel for easy replacement.

[0059] Specifically, when the adsorbent 4 is in bulk (unpackaged), the adsorbent 4 can be filled between the waterproof breathable film 2 and the adsorption purification net 3. For example, in combination Figure 4 , the adsorbent 4 can be arranged between the adsorption purification net 3 and the waterproof breathable film 2; or, when the adsorption purification net 3 is multi-layered, the adsorbent 4 can be arranged between adjacent two layers of the adsorption purification net 3; or, when the waterproof breathable film 2 is multi-layered, the adsorbent 4 can be arranged between adjacent two layers of the waterproof breathable film 2. The adsorbent 4 can also be arranged at at least two of the aforementioned positions simultaneously. When the adsorbent 4 is packaged in a packaging bag, in addition to the aforementioned installation positions, the adsorbent 4 can also be installed at any other position in the air-permeable channel that does not affect the waterproof breathable film 2 and the adsorption purification net 3.

[0060] In some embodiments, the valve body 1 includes a first pipe body 11 and a second pipe body 12. The second pipe body 12 is arranged at one end of the first pipe body 11 and is communicated with the first pipe body 11, and the inner diameter of the first pipe body 11 is smaller than the inner diameter of the second pipe body 12, so that the end face (inner circle) of the first pipe body 11 facing the second pipe body 12 can serve as a positioning step surface, and the positioning step surface can provide certain support and fixation for the flexible waterproof breathable film 2 (in combination Figure 6 and Figure 8 , the waterproof breathable film 2 can be bonded to the positioning step surface), the cavities of the first pipe body 11 and the second pipe body 12 are communicated and serve as the air-permeable channel, and the adsorption purification layer can be arranged in the cavity of the first pipe body 11 and / or the second pipe body 12.

[0061] Among them, it is preferred that the first pipe body 11 and the second pipe body 12 are coaxially arranged.

[0062] To facilitate the installation and positioning of the air vent valve on the cabinet, the outer diameter of the first tube body 11 is smaller than that of the second tube body 12, so that the first tube body 11 can be embedded into the side wall of the cabinet, and the second tube body 12 can abut against the side wall (usually the outer wall) of the cabinet to form positioning.

[0063] Specifically, external threads can be provided on the outer wall of the first tube body 11 to facilitate screwing connection with the side wall of the cabinet. In some embodiments, the extension length of the second tube body 12 is relatively short, and it can be used as the mounting flange of the valve body 1, and bolt holes are provided to realize bolt connection with the side wall of the cabinet body.

[0064] The air permeation channel penetrates straight through the valve body 1. To prevent air flow from directly penetrating into the cabinet along the air permeation channel, a end cap 5 is detachably provided at one end of the second tube body 12 away from the first tube body 11. Combining Figure 9 with this, an air permeation gap communicating with the air permeation channel is provided between the end cap 5 and the second tube body 12. When the air flow enters the air permeation channel from the outside, blocked by the end cap 5, the air flow flows into the cabinet along the air permeation gap between the end cap 5 and the second tube body 12.

[0065] Define the surfaces of the second tube body 12 and the end cap 5 facing each other as the first relative surface and the second relative surface respectively. Combining Figure 3 and Figure 7 with this, a positioning post 13 is provided on one of the first relative surface and the second relative surface, and a positioning hole for the end of the positioning post 13 to be embedded is provided on the other. The positioning post 13 can make the first relative surface and the second relative surface have the above-mentioned air permeation gap therebetween.

[0066] Preferably, the positioning posts 13 are circumferentially and uniformly distributed around the axis of the air permeation channel to ensure the uniformity of the air flow outflow direction.

[0067] Combining Figure 10 with this, the adsorbent 4 can also be arranged between the end cap 5 and the adsorption purification net 3. Combining Figure 12 with this, the adsorbent 4 can also be arranged between the end cap 5 and the waterproof breathable membrane 2. By removing the end cap 5, the adsorbent 4 can be directly replaced.

[0068] In one embodiment, combining Figure 11 with this, the waterproof breathable membrane 2 is one layer, the adsorption purification net 3 is two layers (the first purification net 31 and the second purification net 32 respectively), and are respectively arranged on both sides of the waterproof breathable membrane 2. The adsorbent 4 is divided into two parts, the first adsorbent 41 and the second adsorbent 42. The first adsorbent 41 is arranged between the end cap 5 and the first purification net 31, and the second adsorbent 42 is arranged between the second adsorbent 42 and the second purification net 32. When the air enters the cabinet from the outside, it is sequentially adsorbed and purified by the second purification net 32, the second adsorbent 42, the waterproof breathable membrane 2, the first purification net 31 and the first adsorbent 41.

[0069] The inverter disclosed in the embodiments of the present application includes a cabinet and the above-mentioned air permeable valve. The air permeable valve is arranged on the cabinet body of the cabinet (exemplarily, it can be the side wall of the cabinet body), and the air permeable channel communicates the internal space of the cabinet with the outside. The air permeable valve can remove impurities and moisture in the air entering the cabinet through the air permeable channel, so as to avoid affecting the normal operation of functional components such as the inverter in the cabinet. Due to the above-mentioned air permeable valve, it also has the above-mentioned beneficial effects. Other structures can refer to the prior art and will not be elaborated here.

[0070] The above description of the disclosed embodiments enables those skilled in the art to implement or use the present application. Various modifications to these embodiments will be obvious to those skilled in the art. The general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present application. The specific technical means in some embodiments can be partially or wholly incorporated into another embodiment on the premise that it is not explicitly excluded by another embodiment. Therefore, the present application will not be limited to these embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A vent valve, characterized in that: include: A valve body (1), wherein a venting passage is provided through the valve body (1); A waterproof breathable membrane (2) is arranged in the breathable passage; The adsorption and purification layer is arranged in the air permeable channel and is used for adsorbing impurities and moisture.

2. The breathable valve according to claim 1, characterized in that: The adsorption purification layer comprises at least one of an adsorption purification net (3) and an adsorbent (4).

3. The breathable valve according to claim 2, characterized in that: The adsorption purification net (3) is one layer or multiple layers, and the multiple layers of the adsorption purification net (3) are arranged on the same side or different sides of the waterproof breathable membrane (2); The waterproof and breathable membrane (2) is one layer or multiple layers.

4. The vent valve according to claim 3, characterized in that: Along the axial direction of the air permeable channel, the air holes on two adjacent layers of the adsorption purification net (3) are arranged in a staggered manner.

5. The breathable valve according to claim 3, characterized in that: The adsorbent (4) is arranged between the adsorption purification net (3) and the waterproof breathable membrane (2); and / or, The adsorbent (4) is arranged between two adjacent layers of the adsorption purification net (3); and / or, The adsorbent (4) is arranged between two adjacent layers of the waterproof and breathable membranes (2).

6. The vent valve according to claim 2, characterized in that: The valve body (1) comprises: The first tube body (11); The second tube body (12) is arranged at one end of the first tube body (11); the inner diameter of the first tube body (11) is smaller than the inner diameter of the second tube body (12); the waterproof breathable membrane (2) is arranged on the end surface of the first tube body (11) facing the second tube body (12); the lumens of the first tube body (11) and the second tube body (12) are connected and serve as the breathable passage.

7. The breathable valve according to claim 6, characterized in that: The outer diameter of the first tube body (11) is smaller than the outer diameter of the second tube body (12); the first tube body (11) is used to be embedded in the side wall of the cabinet, and the second tube body (12) is used to abut against the side wall of the cabinet.

8. The breathable valve according to claim 6, characterized in that: An end of the second tube body (12) away from the first tube body (11) is detachably provided with an end cap (5), and a ventilation gap communicating with the ventilation channel is provided between the end cap (5) and the second tube body (12).

9. The breathable valve according to claim 8, characterized in that: The surfaces of the second tube body (12) and the end cover (5) facing each other are respectively a first opposing surface and a second opposing surface, one of the first opposing surface and the second opposing surface is provided with a positioning column (13), and the other is provided with a positioning hole for the end of the positioning column (13) to be embedded, and the positioning column (13) is used to space the first opposing surface and the second opposing surface with the air permeable gap.

10. The breathable valve according to claim 8, characterized in that: The adsorbent (4) is arranged between the end cover (5) and the waterproof breathable membrane (2); or, The adsorbent (4) is arranged between the end cover (5) and the adsorption purification net (3).

11. The breathable valve according to any one of claims 1 to 10, characterized in that: The adsorption and purification layer and / or the waterproof and breathable membrane (2) are detachably arranged in the breathable channel.

12. An inverter, characterized in that: It comprises a cabinet and a ventilation valve as described in any one of claims 1 to 11, wherein the ventilation valve is arranged on a cabinet body of the cabinet, and the ventilation channel connects the internal space of the cabinet with the outside.

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