Water cooling protection structure of frequency conversion electrical cabinet
By increasing the number of water-cooled plates and constructing a protective structure, the problems of poor heat dissipation and dust ingress of the IGBT modules in the frequency converter electrical cabinet were solved, achieving dual-sided water cooling and dust prevention, and improving heat dissipation efficiency.
Patent Information
- Application Number
- CN202422983789.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-04
- Publication Date
- 2025-11-04
- Estimated Expiration
- 2034-12-04
AI Technical Summary
The water-cooled heat dissipation effect of the IGBT module on the inverter side of the frequency converter electrical cabinet is poor, and dust can easily enter, affecting the heat dissipation effect.
Increase the number of water-cooled plates and build a protective structure. Use sealing strips and protective plates to form a protective barrier, achieving double-sided water cooling and preventing dust from entering.
It improves heat dissipation, prevents dust from entering, and ensures cleanliness and efficient heat dissipation inside the electrical cabinet.
Smart Images
Figure CN223514480U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of frequency converter electrical cabinet technology, and in particular to a water-cooled protection structure for frequency converter electrical cabinets. Background Technology
[0002] The IGBT modules on the inverter side of the frequency converter electrical cabinet primarily rely on water cooling for heat exchange. This is achieved by integrating a water-cooled plate on one side of the electrical cabinet. Coolant is pumped and flows through pipes into the water-cooled plate, with the coolant entering from the bottom and exiting from the top. However, the water-cooled plate is typically installed on the open side of the electrical cabinet without separate protection, making it susceptible to dust accumulation and affecting internal heat dissipation. Furthermore, the current practice of using a single water-cooled plate for unilateral cooling results in poor overall heat dissipation. Utility Model Content
[0003] The purpose of this utility model is to provide a water-cooled protection structure for a frequency converter electrical cabinet. By increasing the number of water-cooled plates and constructing a protective structure, the whole structure can be integrated into one side of the frequency converter electrical cabinet to achieve protection and improve heat dissipation.
[0004] To achieve the above objectives, this utility model provides the following technical solution:
[0005] A water-cooled protection structure for a frequency converter electrical cabinet includes a supporting base plate and a first water-cooled plate and a second water-cooled plate spaced apart on the supporting base plate; two crossbars are spaced apart between the first water-cooled plate and the second water-cooled plate; a first water inlet and a first water outlet are integrated on a first side of the first water-cooled plate, and a second water inlet and a second water outlet are integrated on a first side of the second water-cooled plate; a first sealing strip is installed on the second side and the top surface of the first water-cooled plate, and a second sealing strip is installed on the second side and the top surface of the second water-cooled plate; a first protective plate is inserted into the first and second sealing strips located on one side of the second side, and a second protective plate is inserted into the first and second sealing strips located on one side of the top surface.
[0006] Preferably, the first sealing strip and the second sealing strip have a T-shaped cross-section; the first protective plate and the second protective plate are each provided with two slides with one end open and a T-shaped cross-section, and the two slides are respectively inserted into the corresponding first sealing strip and second sealing strip.
[0007] Preferably, the device further includes multiple clamping mechanisms for clamping and fixing the first sealing strip and the second sealing strip. Each clamping mechanism includes a first clamping block and a second clamping block arranged symmetrically. Bolts are provided on the first clamping block and the second clamping block, and adjusting nuts are provided on the bolts. The bolts are used to pass through the first sealing strip and the second sealing strip.
[0008] Preferably, the first clamping block and the second clamping block have a positioning step structure on the opposite side of the first clamping block.
[0009] Preferably, two square grooves are formed at an interval in either the first water-cooled plate or the second water-cooled plate.
[0010] Preferably, one of the crossbars is equipped with an inward-flowing cooling fan.
[0011] Preferably, two first buffer structures and two second buffer structures located on both sides of the first buffer structures are installed at intervals on the second protective plate. The line connecting the two first buffer structures is perpendicular to the line connecting the two second buffer structures. Connecting rods are installed on the two first buffer structures. The connecting rods are provided with inclined plates that are inclined toward the two second buffer structures respectively. Rubber pads that abut against the second buffer structures are provided on the inclined plates.
[0012] Preferably, the first buffer structure includes a first cylinder fixed to the second protective plate and a first slide rod slidably mounted on the first cylinder. A first buffer spring supporting the first slide rod is provided inside the first cylinder. The top of the first slide rod is fixed to the connecting rod.
[0013] Preferably, the second buffer structure includes a second cylinder fixed to the second protective plate and a second slide rod slidably mounted on the second cylinder. A second buffer spring supporting the second slide rod is provided inside the second cylinder. The top of the second slide rod abuts against the rubber pad.
[0014] Preferably, the slope of the line connecting the top of the first slide rod and the top of the second slide rod is the same as the slope of the inclined plate.
[0015] Beneficial effects:
[0016] The first and second water-cooled plates are supported by a base plate, and the installation of the first and second water-cooled plates is reinforced by two crossbars. A first protective plate is installed on the second side using a first and a second sealing strip, and a second protective plate is installed on the top surface using a first and a second sealing strip, thus forming a hollow and externally protected enclosure structure. Water cooling assembly is achieved by integrating one side of the opening onto the frequency converter electrical cabinet. The IGBT module, which generates a large amount of heat, is extended into the base plate, thereby achieving simultaneous water cooling on both sides and improving the water cooling effect.
[0017] The first and second protective plates protect the heat dissipation area from dust entering the interior. Attached Figure Description
[0018] Figure 1This is a first-view structural diagram of an embodiment of the present utility model;
[0019] Figure 2 This is a second-view structural schematic diagram of an embodiment of the present utility model;
[0020] Figure 3 This is a schematic diagram of the structure of the first protective plate / second protective plate in the embodiments of this utility model;
[0021] Figure 4 This is a schematic diagram of the clamping mechanism in an embodiment of the present utility model;
[0022] Figure 5 This is a schematic diagram of the first buffer structure in an embodiment of the present invention;
[0023] Figure 6 This is a schematic diagram of the second buffer structure in an embodiment of the present invention;
[0024] exist Figures 1 to 6 In the diagram, the correspondence between component names or lines and the drawing numbers is as follows:
[0025] Support base plate 1, first water-cooled plate 2, second water-cooled plate 3, crossbar 4, first water inlet 5, first water outlet 6, second water inlet 7, second water outlet 8, first sealing strip 9, second sealing strip 10, first protective plate 11, second protective plate 12, slide block 13, clamping mechanism 14, first clamping block 141, second clamping block 142, bolt 143, adjusting nut 144, positioning step structure 145, square groove 15, cooling fan 16, first buffer structure 17, first cylinder 171, first slide rod 172, first buffer spring 173, second buffer structure 18, second cylinder 181, second slide rod 182, second buffer spring 183, connecting rod 19, inclined plate 20, rubber pad 21. Detailed Implementation
[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.
[0027] See Figures 1-6As shown in the figure, an embodiment of this utility model proposes a water-cooled protection structure for a frequency converter electrical cabinet, which is integrated and installed on one side of the frequency converter electrical cabinet. It primarily dissipates heat from the IGBT module and forms protection in the heat dissipation area. Specifically, it includes a supporting base plate 1 and a first water-cooled plate 2 and a second water-cooled plate 3 spaced apart on the supporting base plate 1. Two crossbars 4 are spaced apart between the first water-cooled plate 2 and the second water-cooled plate 3. The parts requiring heat dissipation are integrated onto the supporting base plate 1, forming simultaneous heat dissipation on both sides of the first water-cooled plate 2 and the second water-cooled plate 3, improving heat dissipation efficiency. The two crossbars 4 provide stable mounting between the first water-cooled plate 2 and the second water-cooled plate 3, ensuring that the first water-cooled plate 2 and the second water-cooled plate 3 can be stably placed on both sides of the heat dissipation components.
[0028] Meanwhile, a first water inlet 5 and a first water outlet 6 are integrated on the first side of the first water-cooled plate 2, and a second water inlet 7 and a second water outlet 8 are integrated on the first side of the second water-cooled plate 3, for connecting to an external coolant circulation system, so as to realize the circulation of coolant within the first water-cooled plate 2 and the second water-cooled plate 3 to achieve heat dissipation.
[0029] To effectively protect the heat dissipation area and prevent dust from entering, a first sealing strip 9 is installed on the second side and top surface of the first water-cooling plate 2, and a second sealing strip is installed on the second side and top surface of the second water-cooling plate 3. A first protective plate 11 is inserted into the first sealing strip 9 and the second sealing strip 10 located on the second side, and a second protective plate 12 is inserted into the first sealing strip 9 and the second sealing strip 10 located on the top surface. By utilizing the sealing effect of the first sealing strip 9 and the second sealing strip 10, and through the first protective plate 11 and the second protective plate 12, protection is achieved, which can provide impact resistance and prevent external dust from entering.
[0030] The side without the protective plate should be fixed to the frequency converter electrical cabinet, and dust prevention can be achieved on the cabinet body.
[0031] Specifically, the first sealing strip 9 and the second sealing strip 10 have T-shaped cross-sections; the first protective plate 11 and the second protective plate 12 are each provided with two slide blocks 13 with one end open and T-shaped cross-sections, which are spaced apart. The two slide blocks 13 are respectively inserted into the corresponding first sealing strip 9 and second sealing strip 10. Through the T-shaped mating structure, the first protective plate 11 and the second protective plate 12 can be quickly installed and limited while maintaining protective performance by inserting the two slide blocks 13 at corresponding positions into the first sealing strip 9 and the second sealing strip 10.
[0032] Specifically, the first sealing strip 9 and the second sealing strip 10 are detachable and maintainable. The system also includes multiple clamping mechanisms 14 for clamping and fixing the first and second sealing strips. Each clamping mechanism 14 includes a symmetrically arranged first clamping block 141 and a second clamping block 142. Bolts 143 are passed through the first clamping block 141 and the second clamping block 142. Adjusting nuts 144 are provided on the bolts 143. The bolts 143 pass through the first and second sealing strips. By passing through the bolts 143 at multiple locations, they support the first sealing strip 9 and the second sealing strip 10 and provide load-bearing strength. During the process of tightening the bolts 143 by adjusting the nuts 144, the first clamping block 141 and the second clamping block 142 can be reliably clamped onto the water-cooling plate, thereby achieving rapid installation of the first sealing strip 9 and the second sealing strip 10.
[0033] To facilitate positioning during installation, a positioning step structure 145 is provided on the side of the first clamping block 141 opposite to the second clamping block 142. The positioning step structure 145 is used to position the first sealing strip 9 and the second sealing strip 10 on the water-cooling plate, ensuring that the positions of the first sealing strip 9 and the second sealing strip 10 remain consistent after installation.
[0034] Specifically, in order to facilitate the installation of internal components of the frequency converter electrical cabinet, two square slots 15 are provided at one interval of the first water-cooled plate 2 or the second water-cooled plate 3. The square slots 15 facilitate the installation of components to avoid obstruction.
[0035] Meanwhile, an inward-blowing cooling fan 16 is installed on one of the crossbars 4, blowing air toward the IGBT module side to accelerate heat dissipation efficiency.
[0036] To protect against impacts from falling objects, two first buffer structures 17 and two second buffer structures 18 located on either side of the first buffer structures 17 are installed at intervals on the second protective plate 12. The line connecting the two first buffer structures 17 is perpendicular to the line connecting the two second buffer structures 18. Connecting rods 19 are installed on the two first buffer structures 17, and each connecting rod 19 has an inclined plate 20 that slopes towards the two second buffer structures 18. Rubber pads 21 are provided on the inclined plates 20 that abut against the second buffer structures 18. The connecting rods 19 and the inclined plates 20 form a protective area covering the area below. After an impact, the first buffer structures 17 and the second buffer structures 18 provide cushioning, preventing impact damage.
[0037] Specifically, the first buffer structure 17 includes a first cylinder 171 fixed on the second protective plate 12 and a first slide rod 172 slidably mounted on the first cylinder 171. The first cylinder 171 is provided with a first buffer spring 173 supporting the first slide rod 172, and the top of the first slide rod 172 is fixed on the connecting rod 19. The first buffer structure 17, as the main buffer part, forms a buffer after being compressed by the first buffer spring 173, and reduces the pressure after being subjected to external impact force.
[0038] Meanwhile, the second buffer structure 18 includes a second cylinder 181 fixed on the second protective plate 12 and a second slide rod 182 slidably mounted on the second cylinder 181. The second cylinder 181 is provided with a second buffer spring 183 supporting the second slide rod 182. The top of the second slide rod 182 abuts against the rubber pad 21. After the inclined plate 20 is impacted, it can achieve buffering and pressure reduction through the second buffer spring 183 in the second buffer structure 18.
[0039] In order to ensure that the connecting rod 19 and the inclined plate 20 can be synchronously buffered after being subjected to impact, the slope of the line connecting the top of the first slide rod 172 and the top of the second slide rod 182 is the same as the slope of the inclined plate 20.
[0040] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.
[0041] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product of this utility model is in use. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first," "second," etc., are only used to distinguish descriptions and should not be construed as indicating or implying relative importance.
[0042] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.
Claims
1. A water-cooled protection structure for a frequency converter electrical cabinet, characterized in that: It includes a supporting base plate (1) and a first water-cooled plate (2) and a second water-cooled plate (3) that are spaced apart on the supporting base plate (1). Two crossbars (4) are installed at intervals between the first water-cooled plate (2) and the second water-cooled plate (3). The first water-cooled plate (2) has a first water inlet (5) and a first water outlet (6) integrated on its first side, and the second water-cooled plate (3) has a second water inlet (7) and a second water outlet (8) integrated on its first side. The first water-cooled plate (2) is equipped with a first sealing strip (9) on its second side and top surface, and the second water-cooled plate (3) is equipped with a second sealing strip on its second side and top surface. A first protective plate (11) is inserted into the first sealing strip (9) and the second sealing strip (10) located on the second side, and a second protective plate (12) is inserted into the first sealing strip (9) and the second sealing strip (10) located on the top side.
2. The water-cooled protection structure for a frequency converter electrical cabinet according to claim 1, characterized in that: The first sealing strip (9) and the second sealing strip (10) have T-shaped cross sections; The first protective plate (11) and the second protective plate (12) are each provided with two slides (13) with one end open and the cross section in the shape of T. The two slides (13) are respectively inserted into the corresponding first sealing strip (9) and second sealing strip (10).
3. The water-cooled protection structure for a frequency converter electrical cabinet according to claim 2, characterized in that: It also includes multiple clamping mechanisms (14) for clamping and fixing the first sealing strip and the second sealing strip. The clamping mechanism (14) includes a first clamping block (141) and a second clamping block (142) arranged symmetrically. Bolts (143) are provided on the first clamping block (141) and the second clamping block (142), and adjusting nuts (144) are provided on the bolts (143). The bolt (143) is used to pass through the first sealing strip and the second sealing strip.
4. The water-cooled protection structure for a frequency converter electrical cabinet according to claim 3, characterized in that: The first clamping block (141) has a positioning step structure (145) on the side opposite to the second clamping block (142).
5. The water-cooled protection structure for a frequency converter electrical cabinet according to claim 4, characterized in that: Two square grooves (15) are provided at an interval in one of the first water-cooled plate (2) or the second water-cooled plate (3).
6. The water-cooled protection structure for a frequency converter electrical cabinet according to claim 5, characterized in that: One of the crossbars (4) is equipped with an inward-flowing cooling fan (16).
7. A water-cooled protection structure for a frequency converter electrical cabinet according to any one of claims 1-6, characterized in that: The second protective plate (12) is equipped with two first buffer structures (17) and two second buffer structures (18) located on both sides of the first buffer structure (17). The line connecting the two first buffer structures (17) is perpendicular to the line connecting the two second buffer structures (18). Connecting rods (19) are installed on two first buffer structures (17). The connecting rods (19) are provided with inclined plates (20) that are inclined toward the two second buffer structures (18) respectively. The inclined plates (20) are provided with rubber pads (21) that abut against the second buffer structures (18).
8. The water-cooled protection structure for a frequency converter electrical cabinet according to claim 7, characterized in that: The first buffer structure (17) includes a first cylinder (171) fixed on the second protective plate (12) and a first slide rod (172) slidably mounted on the first cylinder (171). A first buffer spring (173) supporting the first slide rod (172) is provided inside the first cylinder (171). The top of the first slide bar (172) is fixed to the connecting rod (19).
9. The water-cooled protection structure for a frequency converter electrical cabinet according to claim 8, characterized in that: The second buffer structure (18) includes a second cylinder (181) fixed on the second protective plate (12) and a second slide rod (182) slidably mounted on the second cylinder (181). A second buffer spring (183) supporting the second slide rod (182) is provided inside the second cylinder (181). The top of the second slide bar (182) abuts against the rubber pad (21).
10. The water-cooled protection structure for a frequency converter electrical cabinet according to claim 9, characterized in that: The slope of the line connecting the top of the first slide bar (172) and the top of the second slide bar (182) is the same as the slope of the inclined plate (20).