Damp-proof frequency conversion cabinet

Abstract

The utility model relates to the technical field of frequency conversion cabinets, and provides a moisture-proof frequency conversion cabinet comprising a cabinet body, the cabinet body is provided with a plurality of ventilation slots, the cabinet body comprises a plurality of ventilation plates, each ventilation plate comprises a ventilation plate body and a drying plate body used for placing a drying agent, and each ventilation slot is respectively arranged on each ventilation plate body. The ventilation plate bodies are fixedly connected with the drying plate bodies in a one-to-one correspondence mode, and each drying plate body is provided with a plurality of anti-blocking grooves used for preventing the drying plate body from sealing an air circulation path. According to the technical scheme, the problem that in the prior art, a drying agent cannot directly dehumidify air entering the frequency conversion cabinet is solved, and the risk that electronic devices in the frequency conversion cabinet are affected with damp is reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to frequency conversion cabinet technical field, specifically, relates to a kind of moisture-proof frequency conversion cabinet. BACKGROUND

[0002] Frequency conversion cabinet is generally referred to as the control cabinet of power device driven by frequency converter, with good starting performance, speed regulation performance and energy-saving effect, since it generates heat in working process, so it needs to keep the ventilation state with the outside world to dissipate heat. But when frequency conversion cabinet is in humid environment (such as rainy day), moisture attached in air or humidity can enter the inside of frequency conversion cabinet when it ventilates, which can easily cause the circuit board inside frequency conversion cabinet to be corroded, short-circuited and other phenomena, affecting the normal use of frequency conversion cabinet.

[0003] Therefore, in actual use process, desiccant (moisture absorbent) is usually placed in frequency conversion cabinet to remove moisture in cabinet. But since the ventilation opening of frequency conversion cabinet is usually opened on the cabinet wall, and due to the smoothness of cabinet wall, it is difficult to place desiccant on the cabinet wall, so it can only be placed on the bottom of the space inside frequency conversion cabinet or the platform built inside frequency conversion cabinet for placing electronic devices such as circuit board, so that the desiccant cannot directly dehumidify the air entering the inside of frequency conversion cabinet, and the electronic devices in frequency conversion cabinet still have a high risk of damage. UTILITY MODEL CONTENT

[0004] The utility model provides a kind of moisture-proof frequency conversion cabinet, solve the problem that desiccant cannot directly dehumidify the air entering the inside of frequency conversion cabinet in the related art, reduce the risk of electronic devices in frequency conversion cabinet being wet.

[0005] The technical scheme of the utility model is as follows:

[0006] A kind of moisture-proof frequency conversion cabinet, including cabinet, the cabinet is equipped with several ventilation slots, the cabinet includes several ventilation plates, each ventilation plate includes ventilation plate body, the dry plate body for placing desiccant, each ventilation slot is located on each ventilation plate body, each ventilation plate body is fixedly connected each dry plate body one by one, each dry plate body is equipped with several anti-blocking grooves for preventing its closed air flow path.

[0007] Further, the cabinet is equipped with several ventilation openings, each ventilation plate is located in each ventilation opening one by one, each ventilation plate body is detachably connected with the cabinet, and each dry plate body is located inside the cabinet.

[0008] Further, a plurality of connecting rods are provided between the ventilation plate body and the dry plate body, and the two ends of each connecting rod are fixedly connected with the ventilation plate body and the dry plate body, respectively.

[0009] Further, each of the ventilation openings comprises a mounting portion and a matching portion, each of the matching portions is communicated between the inside and outside of the cabinet body, and the mounting portion is located at one end of the matching portion away from the inner cavity of the cabinet body; each of the ventilation plate bodies is correspondingly embedded in each of the mounting portions, and each of the connecting rods is abutted with the matching portion.

[0010] Further, a projection plane of the drying plate body on a horizontal plane is isosceles trapezoidal structure, and a width of one end of the drying plate body close to the ventilation plate body is smaller than a width of one end of the drying plate body away from the ventilation plate body.

[0011] Further, both ends of the drying plate body are provided with agent blocking plates, and each of the agent blocking plates is detachably connected with the drying plate body.

[0012] Further, each of the agent blocking plates is parallel to the horizontal plane.

[0013] The working principle and beneficial effects of the utility model are as follows:

[0014] In the utility model, the ventilation grooves of the cabinet body are respectively arranged on each ventilation plate, and specifically, are arranged on the ventilation plate bodies in each ventilation plate. In addition, each ventilation plate further comprises a drying plate body, and each drying plate body is fixedly connected with each ventilation plate body in one-to-one correspondence, so as to ensure the stability of the overall structure of each ventilation plate.

[0015] In order to prevent the drying plate body from affecting the air flow between the inside and outside of the cabinet body (blocking the ventilation grooves), a plurality of anti-blocking grooves are arranged on each drying plate body, and each anti-blocking groove penetrates the drying plate body, so that the outside air and the air inside the cabinet body can flow to each other. At the same time, the drying plate body is filled with a drying agent, so that when the outside air enters the cabinet body through the ventilation plate, it needs to pass through the drying plate body filled with the drying agent, and the drying agent can remove the moisture and humidity in the air by the moisture absorption effect, thereby reducing the risk of moisture in the electronic components in the cabinet body. In order to prevent the drying agent inside the drying plate body from flowing out of the drying plate body along the anti-blocking groove, the width of the anti-blocking groove is smaller than the diameter of the drying agent particles.

[0016] Compared with the hole structure of the anti-blocking hole, the strip structure of the anti-blocking groove is difficult to be blocked by the drying agent particles, and there is still a certain gap between the drying agent particles and the particles. Therefore, compared with the drying plate body provided with the anti-blocking hole, the drying plate body provided with the anti-blocking groove can better ensure the ventilation effect. BRIEF DESCRIPTION OF DRAWINGS

[0017] The utility model will be further explained in detail in combination with the drawings and specific embodiments.

[0018] Figure 1 It is a structural schematic view of the embodiment 1 or the embodiment 2 or the embodiment 3.

[0019] Figure 2 It is Figure 1Side view;

[0020] Figure 3 This is a cross-sectional view of Example 1;

[0021] Figure 4 This is a cross-sectional view of Example 2 or Example 3;

[0022] Figure 5 This is a structural schematic diagram of the cabinet in Example 1, Example 2, or Example 3;

[0023] Figure 6 This is a schematic diagram of the structure of Example 2 or Example 3.

[0024] In the picture:

[0025] 1. Cabinet body; 11. Ventilation panel; 111. Ventilation panel body; 112. Drying panel body; 113. Connecting rod; 12. Ventilation opening; 121. Mounting part; 122. Fitting part; 2. Ventilation slot; 3. Anti-clogging slot; 4. Agent baffle. Detailed Implementation

[0026] The technical solutions of this utility model will be clearly and completely described below with reference to the embodiments of this utility model. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this utility model.

[0027] Example 1

[0028] like Figures 1-3 As shown in the figure, this embodiment proposes a moisture-proof frequency converter cabinet, which mainly includes a cabinet body 1. The cabinet body 1 is provided with several ventilation slots 2 to ensure that the air inside and outside the cabinet body 1 can flow to each other, thereby realizing the heat dissipation function of the cabinet body 1.

[0029] Specifically, the cabinet 1 includes several ventilation panels 11, each ventilation panel 11 includes a ventilation panel body 111 and a drying panel body 112 for placing desiccant. Each ventilation slot 2 is located on each ventilation panel body 111, and each ventilation panel body 111 is fixedly connected to each drying panel body 112 in a one-to-one correspondence, thereby ensuring the stability of the overall structure of each ventilation panel 11.

[0030] Each drying plate 112 is provided with several anti-blocking grooves 3 to prevent it from blocking the airflow path. Each anti-blocking groove 3 penetrates the drying plate 112, so that the drying plate 112 also has a ventilation effect. This prevents the drying plate 112 from blocking the path of outside air flowing into the cabinet 1 or the path of air flowing from inside the cabinet 1 to the outside of the cabinet 1, thus ensuring the stability of the ventilation and heat dissipation operation in this embodiment. Moreover, when the outside air enters the cabinet 1, it will come into direct contact with the desiccant located in the drying plate 112. By using the moisture absorption function of the desiccant, the moisture in the air is removed, thereby reducing the probability and possibility of the electronic components located inside the cabinet 1 getting damp, and achieving the moisture-proof function. Meanwhile, in order to prevent the desiccant inside the drying plate 112 from flowing out or sliding out of the drying plate 112 along the anti-clogging groove 3, the width of the anti-clogging groove 3 should be smaller than the diameter of the desiccant particles, thereby ensuring the moisture-proof stability of this embodiment. Therefore, the desiccant in this embodiment is preferably a large-particle desiccant such as a molecular sieve. If necessary, the desiccant can also be bagged to further reduce the possibility of the desiccant flowing out along the anti-clogging groove 3.

[0031] Furthermore, compared to the drying plate 112 with anti-clogging holes, the drying plate 112 with anti-clogging grooves 3 has a strip-shaped structure, the length of which is much greater than the diameter of the desiccant, and there will be a certain gap between adjacent desiccant particles, which greatly reduces the possibility of the anti-clogging structure (anti-clogging grooves 3) on the drying plate 112 being blocked.

[0032] like Figure 3 , Figure 5 As shown, the cabinet 1 has several ventilation openings 12, and each ventilation plate 11 is located in a corresponding ventilation opening 12. Each ventilation plate 111 is detachably connected to the cabinet 1. Since there is a fixed connection between the ventilation plate 111 and the drying plate 112, the drying plate 112 will be removed together with the ventilation plate 111 when it is removed from the cabinet 1. That is, the ventilation plate 11 in this embodiment can be disassembled so that when the desiccant in the ventilation plate 11 no longer has the function of absorbing moisture, the ventilation plate 11 can be replaced to extend the service life of this embodiment.

[0033] Each drying plate 112 is located inside the cabinet 1. Through the cooperation between the cabinet 1 and the ventilation plate 111, the drying plate 112 can be protected, preventing damage to the drying plate 112 during operation and thus preventing the desiccant from flowing out of the drying plate 112, thereby avoiding affecting the anti-sink performance of this embodiment. Moreover, the amount of air in contact with the drying plate 112 is relatively less than that of the drying plate 112 located outside the cabinet 1, which helps to extend the service life of this embodiment.

[0034] A plurality of connecting rods 113 are arranged between the ventilation plate body 111 and the drying plate body 112, both ends of each connecting rod 113 are fixedly connected with the ventilation plate body 111 and the drying plate body 112, and the fixed connection between the ventilation plate body 111, the drying plate body 112 and each connecting rod 113 is preferably a connection mode such as welding that makes the overall structure of the ventilation plate 11 integrally formed, so as to ensure the strength and stability of the overall structure of the ventilation plate 11.

[0035] And because the drying plate body 112 is filled with desiccant, it can cause the time for external air to enter the inside of the cabinet body 1 to be extended. The presence of each connecting rod 113 causes there to be an air transfer and transfer cavity between the ventilation plate body 111 and the drying plate body 112. Because the desiccant reduces the humidity of the surrounding air when it absorbs moisture, and because the cabinet body 1 itself blocks the surrounding air, the air in the transfer cavity cannot be replenished in a timely manner, so that there is a humidity gap between the two ends of the ventilation opening 12 (one end of the ventilation opening 12 close to the inside of the cabinet body 1 and one end of the ventilation opening 12 away from the inside of the cabinet body 1), according to the principle of air flow, air will flow from a high humidity area to a low humidity area, therefore, air will continuously flow into the inside of the cabinet body 1 for heat exchange and cooling, ensuring the heat dissipation effect of the cabinet body 1.

[0036] Each ventilation opening 12 includes a mounting portion 121 and a matching portion 122, each matching portion 122 is in communication with the inside and outside of the cabinet body 1, the mounting portion 121 is located at one end of the matching portion 122 away from the inner cavity of the cabinet body 1, and the length and width dimensions of the projection of the mounting portion 121 in the opening direction of the ventilation opening 12 are greater than the length and width dimensions of the projection of the matching portion 122 in the opening direction of the ventilation opening 12, that is, the cross section of the ventilation opening 12 is a horizontally placed "T" shaped structure, which reserves installation space for the installation of the ventilation plate 11, so as to install the ventilation plate 11 at the ventilation opening 12.

[0037] Specifically, each ventilation plate body 111 corresponds to each mounting portion 121, ensuring that the end of the installed ventilation plate body 111 away from the inner cavity of the cabinet body 1 can be arranged flush with the surface of the cabinet body 1, ensuring the overall aesthetics of the embodiment; each connecting rod 113 abuts against the matching portion 122, ensuring that there are a plurality of contact points between the ventilation plate 11 and the ventilation opening 12, thereby ensuring the stability of the overall structure of the ventilation plate 11 when it is installed at the ventilation opening 12.

[0038] Preferably, the ventilation plate body 111 is connected to the cabinet body 1 by a plurality of bolts or other threaded fasteners, which not only ensures the connection strength of the ventilation plate 11 and the cabinet body 1, but also facilitates the disassembly and assembly of the ventilation plate 11 on the cabinet body 1.

[0039] Embodiment 2

[0040] As Figure 4As shown, on the basis of example 1, the projection of the drying plate body 112 on the horizontal plane in the embodiment is isosceles trapezoidal structure, the width of the end of the drying plate body 112 close to the ventilation plate body 111 is smaller than the width of the end of the drying plate body 112 away from the ventilation plate body 111, compared with the rectangular structure of the drying plate body 112 in example 1, the isosceles trapezoidal structure of the drying plate body 112 in the embodiment will leave a certain gap between the ventilation opening 12, so as to improve the efficiency of the external air entering the inside of the cabinet 1, improve the heat dissipation efficiency in the inside of the cabinet 1, and improve the heat dissipation effect of the embodiment.

[0041] Example 3

[0042] As Figure 6 shown, on the basis of example 1 or example 2, the two ends of the drying plate body 112 in the embodiment are provided with agent baffle 4, and each agent baffle 4 is detachably connected with the drying plate body 112, that is, the old drying agent in the inside of the drying plate body 112 can be poured out by detaching the agent baffle 4, and then new drying agent is poured in, so that the drying agent with reduced moisture absorption capacity is replaced, the moisture absorption and moisture-proof performance of the embodiment is ensured, and the entire ventilation plate 11 does not need to be replaced during later maintenance operation, so that the later operation cost is reduced.

[0043] Each agent baffle 4 is parallel to the horizontal plane, that is, after the agent baffle 4 is detached from the drying plate body 112, the drying agent in the inside of the drying plate body 112 can be directly dropped out under the action of gravity, so that the cleaning rate of the old drying agent is ensured; and the two ends of the drying plate body 112 are provided with agent baffles 4, so that the maintenance personnel can selectively detach one of the agent baffles 4 according to the actual situation, and the flexibility of replacing the drying agent is improved.

[0044] Each agent baffle 4 in the embodiment is preferably connected to the drying plate body 112 by a threaded member such as a bolt, which ensures the stability of the connection and facilitates the later disassembly work.

[0045] The above is only a preferred embodiment of the utility model, and is not used to limit the utility model, and any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the utility model shall be included in the protection scope of the utility model.

Claims

1. A moisture-proof frequency converter cabinet, comprising a cabinet body (1), wherein the cabinet body (1) is provided with a plurality of ventilation slots (2), characterized in that, The cabinet (1) includes several ventilation panels (11), each ventilation panel (11) includes a ventilation panel body (111) and a drying panel body (112) for placing desiccant. Each ventilation slot (2) is located on each ventilation panel body (111). Each ventilation panel body (111) is fixedly connected to each drying panel body (112) in a one-to-one correspondence. Each drying panel body (112) is provided with several anti-blocking slots (3) to prevent it from blocking the air circulation path.

2. The moisture-proof frequency converter cabinet according to claim 1, characterized in that, The cabinet (1) is provided with a number of ventilation openings (12), and each ventilation plate (11) is located in each ventilation opening (12) in a corresponding manner. Each ventilation plate (111) is detachably connected to the cabinet (1), and each drying plate (112) is located inside the cabinet (1).

3. The moisture-proof frequency converter cabinet according to claim 2, characterized in that, A plurality of connecting rods (113) are provided between the ventilation plate (111) and the drying plate (112), and the two ends of each connecting rod (113) are respectively fixedly connected to the ventilation plate (111) and the drying plate (112).

4. The moisture-proof frequency converter cabinet according to claim 3, characterized in that, Each of the ventilation openings (12) includes an installation part (121) and a mating part (122). Each of the mating parts (122) is connected to the inside and outside of the cabinet (1). The installation part (121) is located at the end of the mating part (122) away from the inner cavity of the cabinet (1). Each of the ventilation panels (111) is fitted into each of the mounting parts (121) in a corresponding manner, and each of the connecting rods (113) abuts against the mating part (122).

5. The moisture-proof frequency converter cabinet according to claim 3, characterized in that, The projection surface of the drying plate (112) on the horizontal plane is an isosceles trapezoidal structure. The width of the end of the drying plate (112) close to the ventilation plate (111) is smaller than the width of the end of the drying plate (112) away from the ventilation plate (111).

6. The moisture-proof frequency converter cabinet according to claim 1 or 2, characterized in that, Both ends of the drying plate (112) are provided with a material baffle (4), and each of the material baffles (4) is detachably connected to the drying plate (112).

7. The moisture-proof frequency converter cabinet according to claim 6, characterized in that, Each of the agent baffles (4) is parallel to the horizontal plane.

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