A fan installation structure for a transformer room of an integrated energy storage and boost converter

Abstract

This utility model relates to a fan installation structure for a transformer room of an integrated energy storage and boost converter unit. The fan mounting plate includes a base plate and side plates on both sides of the base plate. The base plate is placed inside the transformer housing. The rear end of the fan is fixed to the base plate. An L-shaped connecting plate is provided on the outer side of the side plates. An L-shaped inner plate is provided on the inner wall of the transformer housing. The first horizontal plate portion of the connecting plate is connected to the second horizontal plate portion of the inner plate. The fan cover is installed on the transformer housing by cover bolts, with the bolt heads positioned within the space formed by the connecting plate. This utility model mounts the rear end of the fan on a fan mounting plate recessed within the transformer housing, thereby reducing the overall product size. While ensuring a compact structure for the integrated energy storage and boost converter unit, it also makes it possible to use a high-power (larger volume) fan for heat dissipation in the transformer room.

Description

Technical Field

[0001] The utility model relates to the technical field of new energy storage power stations, in particular to a fan installation structure in a transformer room of an energy storage boost converter integrated machine. Background Art

[0002] In photovoltaic power generation systems, transformers and other devices are key equipment, and are usually integrated with other devices in an integrated energy storage boost converter. In order to ensure the normal operation of the equipment, the heat dissipation of the integrated energy storage boost converter is particularly critical.

[0003] For example, a Chinese utility model patent with authorization announcement number CN219833547U discloses an integrated energy storage converter and booster, which makes improvements on the heat dissipation method of the energy storage converter of the energy storage converter in the prior art, which adopts side-down air intake and side-up air outlet, and the heat dissipation method of the transformer room, which adopts bottom air intake and top air outlet. The device is provided with a heat dissipation fan unit beside the PCS room, and air inlets are opened on the front and rear door panels of the PCS room. Wind shields are installed on the top and sides of the PCS cabinet, so that multiple groups of L-shaped air ducts can be formed in the PCS room. At the same time, the high-voltage side of the transformer of the device faces the air inlet of the transformer room, and the low-voltage side of the transformer faces the air outlet of the transformer room. In this way, a straight air duct with rear air intake and front air outlet is formed in the transformer room, which is beneficial to the heat dissipation of the transformer room. However, the transformer room of the device still uses relatively small-power fans for heat dissipation, so the number of fans used is relatively large. Four transformer room cooling fans are installed on the front left door and the front right door of the transformer room of the device respectively, so that the transformer room has a total of 8 transformer room cooling fans.

[0004] However, with the development of the market, customers have put forward higher requirements for products. For example, in the energy storage product orders undertaken by manufacturers in the past, the transformer capacity was small and the heat generation was low. Therefore, the technical requirements for the fan exhaust volume, internal wind path of the box transformer, wind pressure, etc. were relatively low. The requirements can be met by using a small fan similar to the CN219833547U patent for exhaust. However, the current energy storage boost converter has a very large transformer capacity and a relatively small empty space. At the same time, the wind path and wind pressure requirements are high. The original small fan can no longer meet the use requirements. If the small fan continues to be used, it is easy to cause the product to run at high temperature for a long time, which will reduce the insulation life of the transformer and ultimately lead to the quality risk of product failure.

[0005] Therefore, in order to achieve more effective heat exchange in the transformer room, many customers require the use of larger fans with higher power for heat dissipation in the transformer room. However, as the fan power and exhaust volume increase, the fan size and protective cover volume also increase accordingly, which in turn leads to an increase in the size of the transformer housing, thus failing to meet customers' requirements for compact product structure and product transportation size. Utility Model Content

[0006] The purpose of the utility model is to provide a fan installation structure for the transformer chamber of an energy storage boost converter, which installs the rear end of the fan on a fan installation plate recessed in the box transformer casing, thereby reducing the overall volume of the product. While ensuring the compact structure of the energy storage boost converter product, it also makes it possible to use a high-power (larger volume) fan to dissipate heat for the transformer chamber.

[0007] The purpose of this utility model is achieved through the following technical solutions:

[0008] A fan installation structure for a transformer room of an energy storage step-up converter, comprising a transformer housing, a fan installation plate, a fan and a fan cover, wherein the fan installation plate comprises a bottom plate and side plates arranged on both sides of the bottom plate, and the bottom plate is placed inside the transformer housing, the rear end of the fan is fixed to the bottom plate, an L-shaped connecting plate is provided on the outer side of the side plate, an L-shaped housing inner plate is provided on the inner wall of the transformer housing, and the first horizontal plate portion of the connecting plate is connected to the second horizontal plate portion of the housing inner plate, the fan cover is installed on the transformer housing through cover bolts, and the head ends of the cover bolts are placed in the space formed by the connecting plate.

[0009] The second vertical plate portion of the shell inner plate is connected to the inner wall of the box-type transformer shell, and the first vertical plate portion of the connecting plate is placed in the space formed by the shell inner plate.

[0010] The first horizontal plate portion of the connecting plate is fixedly connected with the second horizontal plate portion of the shell inner plate by welding.

[0011] The first horizontal plate portion of the connecting plate is fixedly connected to the second horizontal plate portion of the shell inner plate by bolts and nuts, and an insulating sealing element is provided between the first horizontal plate portion and the second horizontal plate portion.

[0012] The advantages and positive effects of the utility model are:

[0013] 1. The utility model installs the rear end of the fan on a fan mounting plate recessed in the box-type transformer housing, thereby reducing the overall volume of the product. While ensuring the compact structure of the energy storage boost converter product, it also makes it possible to use a high-power (larger volume) fan to dissipate heat in the transformer room.

[0014] 2. When installing the utility model, after the fan is fixed, the operator installs the fan cover on the transformer housing through the cover bolts, and the head ends of the cover bolts are placed in the space formed by the L-shaped connecting plate on the outside of the fan mounting plate, so it will not affect the fixed connection between the fan cover and the transformer housing.

[0015] 3. An L-shaped connecting plate is provided on the outer side of the fan mounting plate of the utility model, an L-shaped shell inner plate is provided on the inner wall of the box-type transformer shell, and the fan mounting plate is fixedly connected to the shell inner plate through the connecting plate to realize connection with the box-type transformer shell, and at the same time, the first vertical plate portion of the fan mounting plate and the second vertical plate portion of the shell inner plate can form a double-layer partition structure to play an auxiliary protective role, thereby preventing external impurities from entering the product through the connection between the fan mounting plate and the box-type transformer shell.

[0016] 4. The utility model can flexibly select the fixing method of the first horizontal plate portion of the connecting plate and the second horizontal plate portion of the shell inner plate according to actual needs. When the first horizontal plate portion and the second horizontal plate portion are fixedly connected by bolts and nuts, the fan mounting plate with a suitable concave depth can be flexibly selected for fan fixing according to the specifications and volumes of different fans, which can improve the use flexibility and scope of application of the utility model.

[0017] 5. The utility model makes it possible to use a high-power (larger volume) fan to dissipate heat in the transformer room, and since the number of fans is reduced, this also simplifies the product assembly process. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 The installation state of the utility model is shown in FIG. Figure 1 ,

[0019] Figure 2 The installation state of the utility model is shown in FIG. Figure 2 ,

[0020] Figure 3 for Figure 1 II view in,

[0021] Figure 4 for Figure 3 Enlarged view of point A in .

[0022] Among them, 1 is the box-type transformer casing, 2 is the fan cover, 3 is the fan mounting plate, 301 is the bottom plate, 302 is the side plate, 303 is the connecting plate, 3031 is the first vertical plate portion, 3032 is the first horizontal plate portion, 4 is the box-type transformer top cover, 5 is the fan, 6 is the cover bolt, 7 is the fan bolt, 8 is the casing inner plate, 801 is the second vertical plate portion, and 802 is the second horizontal plate portion. DETAILED DESCRIPTION

[0023] The utility model is further described in detail below in conjunction with the accompanying drawings.

[0024] like Figures 1 to 4 As shown, the utility model comprises a box transformer housing 1, a fan mounting plate 3, a fan 5 and a fan cover 2, wherein Figures 3-4As shown, the fan mounting plate 3 is recessed in the box-type transformer housing 1, and the fan mounting plate 3 includes a bottom plate 301 and side plates 302 arranged on both sides of the bottom plate 301. The bottom plate 301 is placed inside the box-type transformer housing 1, and the rear end of the fan 5 is fixed to the bottom plate 301 by fan bolts 7. An L-shaped connecting plate 303 is arranged on the outer side of the side plate 302. An L-shaped housing inner plate 8 is arranged on the inner wall of the box-type transformer housing 1, and the first horizontal plate portion 3032 of the connecting plate 303 is connected to the second horizontal plate portion 802 of the housing inner plate 8. The fan cover 2 is installed on the box-type transformer housing 1 by cover bolts 6, and the head end of the cover bolt 6 is placed in the space formed by the connecting plate 303. The utility model recesses one end of the fan 5 in the box-type transformer housing 1, which ensures that the energy storage boost converter product has a compact structure and meets the transportation and installation size requirements, and also makes it possible to use a high-power (larger volume) fan to dissipate heat for the transformer room.

[0025] In addition, Figure 4 As shown, the second vertical plate portion 801 of the shell inner plate 8 is connected to the inner wall of the box-type transformer shell 1, and the first vertical plate portion 3031 of the connecting plate 303 is placed in the space formed by the shell inner plate 8, so that the first vertical plate portion 3031 and the second vertical plate portion 301 can form a double-layer partition structure to play an auxiliary protective role, thereby preventing external impurities from entering the interior of the product through the connection between the fan mounting plate 3 and the box-type transformer shell 1.

[0026] In an embodiment of the present invention, the first horizontal plate portion 3032 of the connecting plate 303 and the second horizontal plate portion 802 of the shell inner plate 8 can be fixedly connected by welding.

[0027] In another embodiment of the utility model, the first horizontal plate portion 3032 of the connecting plate 303 and the second horizontal plate portion 802 of the shell inner plate 8 can be fixedly connected by bolts and nuts, and an insulating sealing element such as an insulating sealing pad can be provided between the first horizontal plate portion 3032 and the second horizontal plate portion 802 as needed to ensure product sealing. This embodiment can flexibly select a fan mounting plate 3 with a suitable concave depth for fixing the fan 5 according to the specifications and volumes of different fans 5, thereby improving the flexibility of use and the scope of application of the utility model.

[0028] like Figure 1 As shown, the upper end of the box-type transformer housing 1 is provided with a box-type transformer top cover 4

[0029] The working principle of the utility model is:

[0030] When the utility model is used, the rear end of the fan 5 is fixed to the bottom plate 301 of the fan mounting plate 3 by the fan bolts 7, and because the fan mounting plate 3 is arranged in a concave structure, the rear end of the fan 5 can be immersed in the box transformer housing 1, so that the volume of the front end of the fan 5 exposed from the box transformer housing 1 is reduced, thereby ensuring the compact structure of the product, and also making it possible to use a high-power (larger volume) fan 5 to dissipate heat for the transformer room, such as Figures 1-2 As shown, in an application example of the present invention, two fans 5 are used to meet the heat dissipation requirements of the product, and since the number of fans 5 is greatly reduced, the product assembly process is also simplified.

[0031] After the fan 5 is fixed, the operator then installs the fan cover 2 on the box transformer housing 1 through the cover bolts 6. Figure 4 As shown, the head end of the cover body bolt 6 is placed in the space formed by the L-shaped connecting plate 303 on the outside of the fan mounting plate 3, so it will not affect the fixed connection between the fan cover 2 and the box transformer shell 1. At the same time, the first vertical plate portion 3031 of the connecting plate 303 and the second vertical plate portion 801 of the shell inner plate 8 can form a double-layer partition structure to play an auxiliary protective role, thereby preventing external impurities from entering the product through the connection between the fan mounting plate 3 and the box transformer shell 1.

[0032] In addition, the utility model can also flexibly select the fixing method of the first horizontal plate portion 3032 of the connecting plate 303 and the second horizontal plate portion 802 of the shell inner plate 8 according to actual needs, wherein the sealing performance is better when welding is adopted, and when the first horizontal plate portion 3032 and the second horizontal plate portion 802 are fixedly connected by bolts and nuts, at this time, the fan mounting plate 3 with a suitable concave depth can be flexibly selected according to the specifications and volumes of different fans 5 for fixing the fan 5, which can improve the flexibility of use and the scope of application of the utility model.

Claims

1. A fan installation structure for a transformer room of an energy storage boost converter, characterized in that: The invention comprises a box-type transformer housing (1), a fan mounting plate (3), a fan (5) and a fan cover (2), wherein the fan mounting plate (3) comprises a bottom plate (301) and side plates (302) arranged on both sides of the bottom plate (301), and the bottom plate (301) is placed inside the box-type transformer housing (1), the rear end of the fan (5) is fixed on the bottom plate (301), an L-shaped connecting plate (303) is arranged on the outer side of the side plate (302), an L-shaped housing inner plate (8) is arranged on the inner wall of the box-type transformer housing (1), and a first horizontal plate portion (3032) of the connecting plate (303) is connected to a second horizontal plate portion (802) of the housing inner plate (8), and the fan cover (2) is installed on the box-type transformer housing (1) through cover bolts (6), and the head ends of the cover bolts (6) are placed in the space formed by the connecting plate (303).

2. The fan installation structure for the transformer room of the energy storage boost converter according to claim 1 is characterized in that: The second vertical plate portion (801) of the shell inner plate (8) is connected to the inner wall of the transformer shell (1), and the first vertical plate portion (3031) of the connecting plate (303) is placed in the space formed by the shell inner plate (8).

3. The fan installation structure for the transformer room of the energy storage boost converter according to claim 1 is characterized in that: The first horizontal plate portion (3032) of the connecting plate (303) is fixedly connected to the second horizontal plate portion (802) of the shell inner plate (8) by welding.

4. The fan installation structure for the transformer room of the energy storage boost converter according to claim 1 is characterized in that: The first horizontal plate portion (3032) of the connecting plate (303) is fixedly connected to the second horizontal plate portion (802) of the shell inner plate (8) by bolts and nuts, and an insulating sealing element is provided between the first horizontal plate portion (3032) and the second horizontal plate portion (802).

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