Water-cooled plate for frequency converter

Abstract

The utility model provides a kind of water cooling plate for frequency converter, including protective shell, heat exchange pipe, liquid inlet, liquid outlet, slide, sliding block, temperature guide plate and side plate, the inside fixed heat exchange pipe of protective shell, wherein the liquid inlet of heat exchange pipe is fixed with liquid supply mechanism output end by joint, and the liquid outlet of heat exchange pipe is fixed with the return end of liquid supply mechanism by joint;The upper side of heat exchange pipe is fixed with slide, wherein several sliding blocks are slidably installed in the inside of slide;The upper end of sliding block is uniformly attached with the side surface of temperature guide plate, wherein the other side surface of temperature guide plate is attached with the corresponding heat generating structure of frequency converter;The outer edge of temperature guide plate is fixed with several side plates, wherein side plate is fixed with protective shell by bolt.The utility model is equipped with heat exchange pipe, can preferentially cool the middle part of temperature guide plate, and then meet the heat generating characteristics of frequency converter, secondly, through the cooperation of slide and sliding block, the targeted cooling of heat source can be realized.

Description

Technical Field

[0001] This utility model belongs to the field of frequency converter technology, and in particular relates to a water-cooled plate for frequency converters. Background Technology

[0002] A water-cooled plate for frequency converters is a cooling device specifically designed for heat dissipation in frequency converters. During operation, the internal power electronic components of a frequency converter generate a large amount of heat due to energy conversion. If this heat cannot be dissipated in time, the component temperature will rise, affecting the operating efficiency and lifespan of the frequency converter, and may even cause malfunctions. A water-cooled plate, through the internal circulation of coolant, exchanges heat with the heat-generating components of the frequency converter, carrying away the heat and thus effectively cooling the frequency converter to ensure its stable operation.

[0003] Existing frequency converters with water-cooled plates have a relatively simple structure, mainly consisting of an outer shell and heat exchange tubes. The outer shell serves to protect and fix the internal components and is usually made of materials with certain strength and thermal conductivity. The heat exchange tubes are installed inside the outer shell, with their two ends connected to the external liquid supply system. The coolant flows through the heat exchange tubes inside the outer shell, exchanging heat with the outer shell and the heat-generating components of the frequency converter to achieve the purpose of heat dissipation.

[0004] However, the existing structure has the following drawbacks in practical use:

[0005] First, in the existing structure, the heat exchange tubes are arranged in an "S" shape inside the shell. However, when the frequency converter is working, the temperature in the middle area is often higher than that in the edge area. The "S"-shaped heat exchange tubes cannot prioritize efficient cooling of the higher-temperature middle area, resulting in an overall cooling efficiency that is not ideal.

[0006] Secondly, the location of internal heat sources varies in different models of frequency converters. Even for the same model of frequency converter, the distribution of heat sources will be different under different operating conditions. The existing structure cannot adjust the key areas of heat exchange according to these changes, resulting in a mismatch between the cooling effect and actual needs, making it difficult to achieve precise and efficient heat dissipation.

[0007] Therefore, it is essential to invent a water-cooled plate for frequency converters. Utility Model Content

[0008] To address the above problems, this utility model proposes a water-cooled plate for frequency converters, and the technical solution used is as follows:

[0009] A water-cooled plate for a frequency converter includes a protective shell, heat exchange tubes, a liquid inlet, a liquid outlet, a slide rail, sliders, a temperature-conducting plate, and side plates. The heat exchange tubes are bolted to the interior of the protective shell. The liquid inlet of the heat exchange tubes is fixed to the output end of a liquid supply mechanism via a connector, and the liquid outlet of the heat exchange tubes is fixed to the return end of the liquid supply mechanism via a connector. A slide rail is welded to the upper side of the heat exchange tubes, and several sliders are slidably mounted inside the slide rail. The upper ends of the sliders are all fitted against one side of the temperature-conducting plate, and the other side of the temperature-conducting plate is fitted against the corresponding heating structure of the frequency converter. Several side plates are welded to the outer edge of the temperature-conducting plate, and the side plates are all bolted to the protective shell.

[0010] Furthermore, the heat exchange tube includes a coil, a first liquid inlet pipe, and a second liquid inlet pipe. The coil is a tube wound from the center outwards, and one end of the coil is fixed to the first liquid inlet pipe via a connector, wherein the other end of the first liquid inlet pipe is a liquid inlet. The outer end of the coil is fixed to the second liquid inlet pipe via a connector, wherein the other end of the second liquid inlet pipe is a liquid outlet. The coil is fixed inside the protective shell by bolts, and a slide rail is fixed to the upper side of the coil by welding. This arrangement can preferentially cool the middle part of the temperature-conducting plate (the middle area of ​​the frequency converter with higher temperature), improve the cooling efficiency, and conform to the heating characteristic of the frequency converter that "the temperature in the middle is higher than that at the edge".

[0011] Furthermore, the slider includes a first column and a second column. The first column is slidably installed inside the slide rail, and the upper end of the first column is fixed to the second column by welding. The upper end of the second column is fitted with the temperature-conducting plate. This arrangement can transfer the heat of the temperature-conducting plate to the heat exchange tube, which is then carried away by the coolant. In addition, the position of the slider on the slide rail can be adjusted according to the specific location of the heat source of the frequency converter to achieve targeted cooling of the heat source.

[0012] Furthermore, the slider also includes a magnet, which is fixed inside the lower end of the first column and is attracted to the inner wall of the slide. This arrangement prevents the slider from sliding inside the slide and ensures the stability of heat transfer.

[0013] Compared with the prior art, the present invention has the following beneficial effects:

[0014] The heat exchange tube of this invention, in conjunction with the external liquid supply mechanism, enables the coolant to circulate sequentially within the external liquid supply mechanism, the first liquid delivery pipe, the coil, and the second liquid delivery pipe. Since the coil is wound from the center outwards, the coolant will preferentially cool the middle part of the temperature guide plate (the central area of ​​the frequency converter with higher temperature), thereby improving the cooling efficiency, which is in line with the heating characteristic of the frequency converter that "the temperature in the middle is higher than that at the edge".

[0015] This invention, through the cooperation of the slide rail and the slider, can transfer the heat of the heat-conducting plate to the heat exchange tube, which is then carried away by the coolant. Furthermore, it can adjust the position of the slider on the slide rail according to the specific location of the heat source of the frequency converter, thereby achieving targeted cooling of the heat source. Attached Figure Description

[0016] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a schematic diagram of the structure of this utility model.

[0018] Figure 2 This is an exploded structural diagram of the present invention.

[0019] Figure 3 This is a schematic diagram of the structure of the heat exchange tube of this utility model.

[0020] Figure 4 This is a schematic diagram of the slider of this utility model.

[0021] In the picture:

[0022] 1-Protective shell, 2-Heat exchange tube, 21-Coil, 22-First infusion tube, 23-Second infusion tube, 3-Inlet, 4-Outlet, 5-Slide rail, 6-Slider, 61-First column, 62-Second column, 63-Magnet, 7-Temperature guide plate, 8-Side plate. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0024] In the description of this utility model, it should be understood that the terms "upper", "middle", "outer", "inner", "around", etc., which indicate orientation or positional relationship, are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the components or elements referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0025] Please see Figures 1 to 4As shown, this utility model is a water-cooled plate for a frequency converter, including a protective shell 1, a heat exchange tube 2, a liquid inlet 3, a liquid outlet 4, a slide rail 5, a slider 6, a temperature-conducting plate 7, and side plates 8. The heat exchange tube 2 is fixed inside the protective shell 1 by bolts. The liquid inlet 3 of the heat exchange tube 2 is fixed to the output end of the liquid supply mechanism through a connector, and the liquid outlet 4 of the heat exchange tube 2 is fixed to the return end of the liquid supply mechanism through a connector. The slide rail 5 is fixed to the upper side of the heat exchange tube 2 by welding. Several sliders 6 are slidably installed inside the slide rail 5. The upper ends of the sliders 6 are all fitted to one side of the temperature-conducting plate 7, and the other side of the temperature-conducting plate 7 is fitted to the corresponding heating structure of the frequency converter. Several side plates 8 are fixed to the outer edge of the temperature-conducting plate 7 by welding. The side plates 8 are all fixed to the protective shell 1 by bolts.

[0026] Specifically, the heat exchange tube 2 includes a coil 21, a first liquid delivery pipe 22, and a second liquid delivery pipe 23. The coil 21 is a tube wound from the center outwards, and one end of the coil 21 is fixed to the first liquid delivery pipe 22 via a connector. The other end of the first liquid delivery pipe 22 is the liquid inlet 3. The second liquid delivery pipe 23 is fixed to one end of the outer side of the coil 21 via a connector. The other end of the second liquid delivery pipe 23 is the liquid outlet 4. The coil 21 is fixed inside the protective shell 1 by bolts, and a slide rail 5 is fixed to the upper side of the coil 21 by welding. This arrangement, in conjunction with the external liquid supply mechanism, allows the coolant to circulate sequentially within the external liquid supply mechanism, the first liquid delivery pipe 22, the coil 21, and the second liquid delivery pipe 23. Since the coil 21 is wound from the center outwards, the coolant will first cool the middle part of the temperature guide plate 7 (the middle part of the temperature guide plate 7 is close to the middle part of the frequency converter, and the temperature in the middle part of the frequency converter is higher than the temperature at the edge when the frequency converter is in use).

[0027] Specifically, the slider 6 includes a first column 61 and a second column 62. The first column 61 is slidably installed inside the slide rail 5, and the upper end of the first column 61 is fixed to the second column 62 by welding. The upper end of the second column 62 is fitted to the temperature guide plate 7. With this arrangement, the coolant inside the heat exchange tube 2 can be used to cool the temperature guide plate 7 through the cooperation of the slide rail 5, the first column 61 and the second column 62. Furthermore, during use, the position of the slider 6 on the slide rail 5 can be adjusted according to the position of the heat source of the frequency converter, thereby enabling targeted cooling of the heat source position of the frequency converter.

[0028] Specifically, the slider 6 also includes a magnet 63, which is fixed inside the lower end of the first column 61 and is attracted to the inner wall of the slide 5. After the position of the slider 6 is adjusted, the attraction of the magnet 63 to the slide 5 can prevent the slider 6 from sliding inside the slide 5.

[0029] Please see Figure 1-4As shown, this utility model is a water-cooled plate for a frequency converter. Its working principle is as follows: During installation, the protective shell 1 is first fixed to the frequency converter with bolts, and the temperature-conducting plate 7 is fitted to the frequency converter. Then, the liquid inlet 3 and the liquid outlet 4 of the heat exchange tube 2 are connected to the external liquid supply mechanism. In use, through cooperation with the external liquid supply mechanism, the coolant can circulate sequentially inside the external liquid supply mechanism, the first liquid delivery pipe 22, the coil 21 and the second liquid delivery pipe 23. At this time, through the cooperation of the temperature-conducting plate 7, the slider 6 and the slide rail 5, the heat of the frequency converter can be transferred to the heat exchange tube and then carried away by the coolant.

[0030] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0031] The preferred embodiments of this utility model disclosed above are merely illustrative of the present utility model. These preferred embodiments do not exhaustively describe all details, nor do they limit the utility model to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of this utility model, thereby enabling those skilled in the art to better understand and utilize it. This utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A water-cooled plate for a frequency converter, comprising a protective shell (1), heat exchange tubes (2), a liquid inlet (3), a liquid outlet (4), a slide rail (5), a slider (6), a temperature-conducting plate (7), and a side plate (8), characterized in that: The protective shell (1) has a heat exchange tube (2) fixed inside. The inlet (3) of the heat exchange tube (2) is fixed to the output end of the liquid supply mechanism through a connector, and the outlet (4) of the heat exchange tube (2) is fixed to the return end of the liquid supply mechanism through a connector. The upper side of the heat exchange tube (2) is fixed with a slide rail (5), and several sliders (6) are slidably installed inside the slide rail (5). The upper ends of the sliders (6) are all fitted with one side of the temperature guide plate (7), and the other side of the temperature guide plate (7) is fitted with the corresponding heating structure of the frequency converter. Several side plates (8) are fixed to the outer edge of the temperature guide plate (7), and the side plates (8) are all fixed to the protective shell (1) by bolts.

2. A water-cooled plate for a frequency converter as described in claim 1, characterized in that: The heat exchange tube (2) includes a coil (21), a first liquid delivery tube (22), and a second liquid delivery tube (23). The coil (21) is a tube body wound from the center outward, and one end of the middle part of the coil (21) is fixed to the first liquid delivery tube (22), wherein the other end of the first liquid delivery tube (22) is the liquid inlet (3); one end of the outer side of the coil (21) is fixed to the second liquid delivery tube (23), wherein the other end of the second liquid delivery tube (23) is the liquid outlet (4); the coil (21) is fixed inside the protective shell (1), and a slide (5) is fixed on the upper side of the coil (21).

3. A water-cooled plate for a frequency converter as described in claim 1, characterized in that: The slider (6) includes a first column (61) and a second column (62). The first column (61) is slidably installed inside the slide (5), and the upper end of the first column (61) is fixed with the second column (62). The upper end of the second column (62) is fitted with the temperature-conducting plate (7).

4. A water-cooled plate for a frequency converter as described in claim 3, characterized in that: The slider (6) also includes a magnet (63), which is fixed inside the lower end of the first column (61) and is attracted to the inner wall of the slide (5).

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