Inductor packaging structure convenient for heat dissipation

Abstract

The utility model relates to the technical field of inductor packaging, and discloses an inductor packaging structure convenient for heat dissipation, which comprises a case, a bottom sealing cover, an inductor plate package, a power unit radiator and a reactor radiator, the power unit radiator and the reactor radiator are arranged in the case, an air inlet and an air outlet are respectively arranged at two ends of the case, and the inductor plate package is arranged on the inner wall of the bottom sealing cover. The inductance plate package comprises a machine shell and an inductance plate, supporting columns are fixedly connected to the four corners of the inner bottom face of the machine shell, the inductance plate is installed on the supporting columns through screws, a differential mode inductor and a common mode inductor are installed on the inductance plate, and flanges are fixedly connected to the peripheral side of the outer wall of the machine shell. According to the utility model, the common-mode inductor and the differential-mode inductor are combined and packaged in the casing, so that the occupied area is smaller, the bottom area of the high-protection space of the casing is fully utilized, the utilization efficiency of the space is improved, the phenomenon of frequency reduction caused by high temperature in the energy storage converter box is solved, the heat dissipation performance is ensured, and the service life of the energy storage converter box is prolonged. And the operation stability of equipment is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of inductor packaging, in particular to an inductor packaging structure which is convenient for heat dissipation. Background Art

[0002] During the development of high-protection energy storage converters, high internal temperature of the chassis is a common problem. Usually, when designing the product, electrical components that generate high power consumption, such as reactors and power unit heat dissipation devices, are placed outside to quickly remove heat through fans. However, some electrical components with slightly higher power consumption, such as the common-mode inductor and differential-mode inductor of the AC side filter unit, are still placed inside the chassis, and both will generate a lot of heat during operation.

[0003] A fan is usually set inside a high-protection energy storage converter to disturb the internal air. The flowing air will transfer the heat generated by the heat-generating electrical components into the chassis through convection transfer, which will increase the air temperature inside the chassis. The high-temperature air will exchange heat with the inner walls around the chassis, and then dissipate the heat to the outside air through the outer wall. Considering that the high-protection energy storage converter module is usually placed in a separate cabin in the integration of the energy storage system, the heat exchange between the outer wall of the chassis and the atmospheric environment is only carried out through natural heat exchange, resulting in a large thermal resistance in the heat dissipation process inside and outside the chassis. This situation will cause the internal temperature of the high-protection chassis to be high, affecting the heat dissipation of the internal equipment. The current urgent problem to be solved is to transfer as much heat from the power-consuming components as possible to the outside of the chassis through a more efficient heat transfer method. For this purpose, an inductor packaging structure that is easy to dissipate heat is proposed. Utility Model Content

[0004] In view of the deficiencies of the prior art, the utility model provides an inductor packaging structure that is convenient for heat dissipation, and solves the problems raised by the background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an inductor packaging structure that is easy to dissipate heat, including a chassis, a bottom cover, an inductor plate package, and a power unit radiator and a reactor radiator installed in the chassis, an air inlet and an air outlet are respectively provided at both ends of the chassis, the inductor plate package is installed on the inner wall of the bottom cover, the inductor plate package includes a casing and an inductor plate, the four corners of the inner bottom surface of the casing are fixedly connected with pillars, the inductor plate is installed on the pillars by screws, differential mode inductors and common mode inductors are installed on the inductor plate, a flange is fixedly connected to the peripheral side of the outer wall of the casing, potting glue is filled in the casing, and a plurality of bolts connected to the flange are penetrated through the back of the bottom cover.

[0006] Preferably, two bottom cover air guide ducts are installed on the side wall of the bottom cover, the bottom cover air guide ducts are fixed by bolts, and the casing is installed between the two bottom cover air guide ducts.

[0007] Preferably, the inductor plate package further comprises a polyurethane adhesive strip fixed to the back of the flange, and the polyurethane adhesive strip is in contact with the side wall of the air guide duct of the bottom cover.

[0008] Preferably, the inductor board package further comprises insulating paper installed in the casing, the insulating paper is installed on the inner bottom surface of the casing, and the insulating paper is located below the common mode inductor.

[0009] Preferably, the bottom cover air guide duct is vertically distributed to the air inlet and the air outlet.

[0010] Preferably, the length of the bottom cover air guide duct is equal to the inner depth of the chassis, and one end of the bottom cover air guide duct abuts against one side of the interior of the chassis.

[0011] Compared with the prior art, the utility model has the following beneficial effects:

[0012] 1. The utility model encapsulates the inductor board composed of the common-mode inductor and the differential-mode inductor in the casing, which occupies a smaller area and makes full use of the bottom area of ​​the high protection space of the chassis, thereby improving the utilization efficiency of the space. At the same time, it is helpful to solve the problem of frequency reduction caused by high temperature in the energy storage converter box, ensures heat dissipation, and improves the stability of equipment operation.

[0013] 2. The utility model installs two bottom cover air guide ducts on the side wall of the bottom cover, the casing is located between the two bottom cover air guide ducts, and the casing is installed on the bottom cover and the air guide ducts through the flange of its outer wall, so that the casing will not sink too much after being fixed, avoiding affecting the heat dissipation of the power unit radiator. During heat dissipation, fresh air from the outside will enter from the air inlet of the chassis, and first flow through the casing under the action of the bottom cover air guide duct. At this time, the air flow speed is large, which greatly satisfies the heat dissipation of the inductor board package.

[0014] Other features and advantages of the utility model will be described in the following description, and partly become apparent from the description, or understood by implementing the utility model. The purpose and other advantages of the utility model can be realized and obtained by the structures indicated in the description, claims and drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0016] Figure 2 This is a schematic diagram of the internal structure of the chassis of the utility model;

[0017] Figure 3 It is a schematic diagram of the planar structure of the inductor plate package of the utility model;

[0018] Figure 4 It is a schematic diagram of the installation position structure of the inductor plate and the casing of the utility model.

[0019] In the figure: 1. chassis; 2. power unit heat sink; 3. reactor heat sink; 4. air inlet; 5. air outlet; 6. inductor plate package; 61. chassis; 62. pillar; 63. inductor plate; 64. common mode inductor; 65. differential mode inductor; 66. flange; 67. polyurethane tape; 68. potting glue; 69. insulating paper; 7. bottom cover air guide duct; 8. bottom cover; 9. bolts. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this technical field without creative work are within the scope of protection of the utility model.

[0021] See also Figure 1-4 The inductor packaging structure for heat dissipation of the present embodiment includes a chassis 1, a bottom cover 8, an inductor plate package 6, and a power unit radiator 2 and a reactor radiator 3 installed in the chassis 1. The chassis 1 is provided with an air inlet 4 and an air outlet 5 at both ends. The inductor plate package 6 is installed on the inner wall of the bottom cover 8. The inductor plate package 6 includes a housing 61 and an inductor plate 63. The four corners of the inner bottom surface of the housing 61 are fixedly connected with pillars 62. The inductor plate 63 is installed on the pillars 62 by screws. A differential mode inductor 65 and a common mode inductor 64 are installed on the inductor plate 63. A flange 66 is fixedly connected to the peripheral side of the outer wall of the housing 61. The housing 61 is filled with potting glue 68. A plurality of bolts 9 connected to the flange 66 are penetrated through the back of the bottom cover 8.

[0022] like Figure 1-4As shown, the inductor packaging structure in the present invention is similar to the existing inductor packaging structure. The main improvement of the present invention is to improve the heat dissipation of the inductor package in the energy storage converter. When the present invention is installed, the differential mode inductor 65 and the common mode inductor 64 are both installed on the inductor plate 63, and the differential mode inductor 65 and the common mode inductor 64 are both inserted into the casing 61. The pillar 62 supports the inductor plate 63, and the screws are passed through the inductor plate 63 and threadedly connected with the pillar 62 to fix the inductor plate 63. The potting glue 68 is poured into the casing 61 for potting. After the inductor plate package 6 is packaged, the flange 66 on the casing 61 is fixedly installed on the bottom cover 8 by bolts 9. The flange 66 is located on the side wall of the casing, so that the casing will not sink too much after installation to block the power unit radiator 2 and affect the power The unit radiator 2 dissipates heat, and finally the bottom cover 8 is installed on the chassis 1. The bolts 9 can be waterproof bolts to improve the sealing inside the chassis 1. The fresh air from the outside enters the chassis 1 from the air inlet 4. The height of the casing 61 is much lower than the height of the fins of the power unit radiator 2. The casing 61 does not sink too much, and the power consumption generated by the inductor plate 63 is much lower than the power consumption of the power unit radiator 2. Therefore, the fresh air entering the chassis 1 first dissipates the heat of the inductor plate package 6, and then dissipates the heat of the power unit radiator 2, which will not affect the power unit radiator 2. Finally, the fresh air takes the heat out from the air outlet 5, which reduces the occupied area and improves the utilization efficiency of the space. At the same time, it is beneficial to solve the phenomenon of frequency reduction due to high temperature in the energy storage converter box, ensures the heat dissipation, and improves the stability of equipment operation.

[0023] like Figure 1-3 As shown, two bottom cover air guide ducts 7 are installed on the side wall of the bottom cover 8, and the bottom cover air guide ducts 7 are locked and fixed by bolts 9, and the casing 61 is installed between the two bottom cover air guide ducts 7; the two bottom cover air guide ducts 7 can guide the fresh air entering the chassis 1, and part of the casing 61 is located in the air duct formed between the two bottom cover air guide ducts 7. The external fresh air will enter from the air inlet 4 of the chassis 1, and will first flow through the casing 61 under the action of the bottom cover air guide duct 7. At this time, the air flow speed is large, which greatly satisfies the heat dissipation of the inductor board package 6. Bolts 9 are used to pass through the bottom cover air guide duct 7 and the flange 66 to fix the two.

[0024] like Figure 1 , 3 As shown, the inductor board package 6 also includes a polyurethane adhesive strip 67 fixed to the back of the flange 66, and the polyurethane adhesive strip 67 is in contact with the side wall of the bottom cover air duct 7; the polyurethane adhesive strip 67 is located between the flange 66 and the bottom cover air duct 7. The polyurethane adhesive strip 67 is used to ensure the internal high protection requirements of the entire chassis 1.

[0025] like Figure 3As shown, the inductor board package 6 also includes an insulating paper 69 installed in the casing 61. The insulating paper 69 is installed on the inner bottom surface of the casing 61 and is located below the common-mode inductor 64. The insulating paper 69 provides an insulating effect for the common-mode inductor 64 to avoid affecting its operation.

[0026] like Figure 1 , 2 As shown, the bottom cover air guide duct 7 is vertically distributed with the air inlet 4 and the air outlet 5; the bottom cover air guide duct 7 vertically distributed with the air inlet 4 and the air outlet 5 ensures the guidance of wind force, so that the fresh air entering the chassis 1 can be gathered through the bottom cover air guide duct 7, thereby increasing the wind flow rate.

[0027] like Figure 1 , 2 As shown, the length of the bottom cover air guide duct 7 is equal to the internal depth of the chassis 1, and one end of the bottom cover air guide duct 7 is against the inner side of the chassis 1; the bottom cover air guide duct 7 separates the internal space of the chassis 1, increases the wind flow rate between the two bottom cover air guide ducts 7, and prevents the fresh air entering between the two bottom cover air guide ducts 7 from overflowing, thereby improving the heat dissipation of the inductor plate package 6.

[0028] The implementation steps in this embodiment are as follows: during installation, the differential mode inductor 65 and the common mode inductor 64 are both installed on the inductor plate 63, and the differential mode inductor 65 and the common mode inductor 64 are both inserted into the housing 61, the pillar 62 supports the inductor plate 63, and screws are passed through the inductor plate 63 and threadedly connected with the pillar 62 to fix the inductor plate 63, and the potting glue 68 is poured into the housing 61 for potting. After the inductor plate package 6 is packaged, the flange 66 on the housing 61 and the two bottom cover air guide ducts 7 are fixedly installed on the bottom cover 8 by bolts 9. The flange 66 is abutted against the end face of the bottom cover air guide duct 7, and then the bottom cover 8 is installed on the chassis 1. The outside fresh air enters the chassis 1 from the air inlet 4. The height of the casing 61 is much lower than the height of the fins of the power unit radiator 2, and the power consumption generated by the inductor plate 63 is much lower than the power consumption of the power unit radiator 2. Therefore, the fresh air entering the chassis 1 first flows through the casing 61 under the action of the bottom cover air guide duct 7, and then dissipates the heat of the power unit radiator 2, which will not affect the power unit radiator 2. Finally, the fresh air takes the heat out from the air outlet 5.

[0029] Obviously, the above embodiments of the present invention are merely examples for clearly explaining the present invention, and are not intended to limit the implementation methods of the present invention. For those skilled in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all implementation methods here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention shall be included in the protection scope of the claims of the present invention.

Claims

1. An inductor packaging structure that facilitates heat dissipation, comprising a chassis (1), a bottom cover (8), an inductor plate package (6), and a power unit heat sink (2) and a reactor heat sink (3) installed in the chassis (1), characterized in that: The two ends of the chassis (1) are respectively provided with an air inlet (4) and an air outlet (5); an inductor plate package (6) is mounted on the inner wall of a bottom cover (8); the inductor plate package (6) comprises a housing (61) and an inductor plate (63); pillars (62) are fixedly connected to the four corners of the inner bottom surface of the housing (61); the inductor plate (63) is mounted on the pillars (62) by screws; a differential mode inductor (65) and a common mode inductor (64) are mounted on the inductor plate (63); a flange (66) is fixedly connected to the outer wall of the housing (61); a potting glue (68) is filled in the housing (61); and a plurality of bolts (9) connected to the flange (66) are passed through the back of the bottom cover (8).

2. The inductor packaging structure for facilitating heat dissipation according to claim 1, characterized in that: Two bottom cover air guide ducts (7) are installed on the side wall of the bottom cover (8), the bottom cover air guide ducts (7) are locked and fixed by bolts (9), and the housing (61) is installed between the two bottom cover air guide ducts (7).

3. The inductor packaging structure for facilitating heat dissipation according to claim 2, characterized in that: The inductor plate package (6) also includes a polyurethane adhesive strip (67) fixed to the back of the flange (66), and the polyurethane adhesive strip (67) is in contact with the side wall of the bottom cover air guide duct (7).

4. The inductor packaging structure for facilitating heat dissipation according to claim 3, characterized in that: The inductor plate package (6) also includes insulating paper (69) installed in the housing (61). The insulating paper (69) is installed on the inner bottom surface of the housing (61). The insulating paper (69) is located below the common mode inductor (64).

5. The inductor packaging structure for facilitating heat dissipation according to claim 2, characterized in that: The bottom cover air guide duct (7) is vertically distributed to the air inlet (4) and the air outlet (5).

6. The inductor packaging structure for facilitating heat dissipation according to claim 2, characterized in that: The length of the bottom cover air guide duct (7) is equal to the internal depth of the chassis (1), and one end of the bottom cover air guide duct (7) abuts against one side of the interior of the chassis (1).

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